Initial commit

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "ocf"]
+	path = ocf
+	url = git@github.com:Open-CAS/ocf.git

Makefile

@@ -0,0 +1,15 @@
+#
+# Copyright(c) 2012-2019 Intel Corporation
+# SPDX-License-Identifier: BSD-3-Clause-Clear
+#
+
+default: all
+
+DIRS:=modules casadm utils
+
+.PHONY: default all clean distclean $(DIRS)
+
+all $(MAKECMDGOALS): $(DIRS)
+
+$(DIRS):
+	cd $@ && $(MAKE) $(MAKECMDGOALS)

casadm/Makefile

@@ -0,0 +1,167 @@
+#
+# Copyright(c) 2012-2019 Intel Corporation
+# SPDX-License-Identifier: BSD-3-Clause-Clear
+#
+
+PWD:=$(shell pwd)
+MODULESDIR:=$(PWD)/../modules
+UTILS_DIR:=$(PWD)/../utils
+BINARY_PATH = /sbin
+
+VERSION_FILE := $(MODULESDIR)/CAS_VERSION
+
+#
+# Section below enables creating build with experimental features
+#
+ifeq ($(CAS_EXT_EXP),1)
+DEFINES    = WI_AVAILABLE
+endif
+
+#
+# Add defines for version
+#
+-include $(VERSION_FILE)
+DEFINES   += CAS_VERSION_MAIN=$(CAS_VERSION_MAIN)
+DEFINES   += CAS_VERSION_MAJOR=$(CAS_VERSION_MAJOR)
+DEFINES   += CAS_VERSION_MINOR=$(CAS_VERSION_MINOR)
+DEFINES   += CAS_BUILD_NO=\"$(CAS_BUILD_NO)\"
+
+#
+# Additional git version
+#
+ifneq ($(strip $(CAS_BUILD_FLAG)),)
+DEFINES    += CAS_BUILD_FLAG=\"$(CAS_BUILD_FLAG)\"
+endif
+
+#
+# Include directories
+#
+INCLUDES     = .
+INCLUDES    += $(MODULESDIR)/include
+
+OBJDIR       = .obj/
+TARGET	     = casadm
+TARGETS      = $(TARGET)
+
+#
+# Source to be complied
+#
+
+OBJS  = cas_lib.o
+OBJS += cas_main.o
+OBJS += argp.o
+OBJS += statistics_view_csv.o
+OBJS += cas_lib_utils.o
+OBJS += statistics_model.o
+OBJS += table.o
+OBJS += psort.o
+OBJS += statistics_view_text.o
+OBJS += intvector.o
+OBJS += statistics_view.o
+OBJS += statistics_view_raw_csv.o
+OBJS += csvparse.o
+OBJS += extended_err_msg.o
+OBJS += upgrade.o
+OBJS += safeclib/memmove_s.o
+OBJS += safeclib/memcpy_s.o
+OBJS += safeclib/memset_s.o
+OBJS += safeclib/strncpy_s.o
+OBJS += safeclib/strtok_s.o
+OBJS += safeclib/safe_str_constraint.o
+OBJS += safeclib/ignore_handler_s.o
+OBJS += safeclib/safe_mem_constraint.o
+OBJS += safeclib/mem_primitives_lib.o
+OBJS += safeclib/strnlen_s.o
+
+#
+# Flags for C compilation
+#
+CFLAGS     = $(patsubst %,-I%,$(INCLUDES))
+CFLAGS    += $(patsubst %,-D%,$(DEFINES))
+ifdef DEBUG
+CFLAGS    += -O0 -g
+else
+CFLAGS    += -O2 -D_FORTIFY_SOURCE=2
+endif
+CFLAGS    += -Wall -z relro -z now -fstack-protector -fPIC -Wformat -Wformat-security -fno-strict-aliasing
+
+#
+# Flags for linking
+#
+LDFLAGS    = -z noexecstack -z relro -z now -pie -pthread
+#
+# Targets
+#
+
+all: sync
+	$(MAKE) build
+
+build: $(VERSION_FILE) $(TARGETS)
+
+sync:
+	@cd $(MODULESDIR) && $(MAKE) sync
+
+#
+# Include dependencies file
+#
+$(TARGET): $(TARGET).a
+	@echo "  LD " $@
+	@$(CC) $(CFLAGS) $(LDFLAGS) -o $(TARGET) $<
+
+$(TARGET).a: $(patsubst %,$(OBJDIR)%,$(OBJS))
+	@echo "  AR " $@
+	@ar rcs $@ $^
+	@echo "  AR " libcas.a
+	@cp -f $@ libcas.a
+	@ar d libcas.a $(OBJDIR)argp.o $(OBJDIR)cas_main.c
+
+#
+# Generic target for C file
+#
+$(OBJDIR)%.o: %.c
+	@echo "  CC " $<
+	@mkdir -p $(dir $@)
+ifeq ($(strip $(CAS_VERSION_MAIN)),)
+	$(error "No version file")
+endif
+	@$(CC) -c $(CFLAGS) -MMD -MP -MF"$(@:%.o=%.d)" -MT"$(@:%.o=%.d)" -o "$@" "$<"
+
+$(VERSION_FILE):
+	@echo "  VERSION " $@
+	@cd $(MODULESDIR) && ./CAS_VERSION_GEN
+
+clean:
+	@echo "  CLEAN "
+	@rm -f *.a $(TARGETS)
+	@rm -f $(shell find -name \*.d) $(shell find -name \*.o)
+
+distclean: clean
+	@rm -f $(VERSION_FILE)
+
+install:
+	@echo "Installing casadm"
+	@install -m 755 $(TARGET) $(BINARY_PATH)/$(TARGET)
+	@install -m 644 $(UTILS_DIR)/$(TARGET).8 /usr/share/man/man8/$(TARGET).8
+
+	@install -m 755 -d /etc/opencas
+	@install -m 644 $(UTILS_DIR)/opencas.conf /etc/opencas/opencas.conf
+	@install -m 444 $(UTILS_DIR)/ioclass-config.csv /etc/opencas/ioclass-config.csv
+	@install -m 444 $(UTILS_DIR)/ext3-config.csv /etc/opencas/ext3-config.csv
+	@install -m 444 $(UTILS_DIR)/ext4-config.csv /etc/opencas/ext4-config.csv
+
+	@install -m 644 $(UTILS_DIR)/opencas.conf.5 /usr/share/man/man5/opencas.conf.5
+
+uninstall:
+	@echo "Uninstalling casadm"
+	@rm $(BINARY_PATH)/$(TARGET)
+	@rm /usr/share/man/man8/$(TARGET).8
+
+	@rm /etc/opencas/opencas.conf
+	@rm /etc/opencas/ioclass-config.csv
+	@rm /etc/opencas/ext3-config.csv
+	@rm /etc/opencas/ext4-config.csv
+	@rm -rf /etc/opencas
+
+	@rm /usr/share/man/man5/opencas.conf.5
+
+.PHONY: clean distclean all sync build install uninstall

casadm/argp.c

@@ -0,0 +1,803 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#include <stdbool.h>
+#include <string.h>
+#include "argp.h"
+#include "cas_lib.h"
+#include "cas_lib_utils.h"
+#include <sys/timeb.h>
+#include <sys/stat.h>
+
+#define PADDING "   "
+#define MAX_OPT_HELP_LEN 30
+
+extern cas_printf_t cas_printf;
+
+static int is_su_requied(const cli_command* commands, int cmd)
+{
+	return commands[cmd].flags & CLI_SU_REQUIRED;
+}
+
+static int is_command_hidden(const cli_command* commands, int cmd)
+{
+	return commands[cmd].flags & CLI_COMMAND_HIDDEN;
+}
+
+static void print_short_usage(const app *app_values)
+{
+	cas_printf(LOG_INFO, "Usage: %s %s\n", app_values->name, app_values->info);
+}
+
+static void print_info(const app *app_values)
+{
+	cas_printf(LOG_INFO, "Try `%s --help | -H' for more information.\n", app_values->name);
+}
+
+char *get_short_name_string(const char short_name, char *buf)
+{
+	if (short_name) {
+		snprintf(buf, 3, "-%c", short_name);
+	} else {
+		buf[0] = 0;
+	}
+	return buf;
+}
+
+char *command_name_with_slash(char *buf, size_t buf_size, char short_name, char *long_name) {
+	if (short_name) {
+		snprintf(buf, buf_size, "-%c/--%s", short_name, long_name);
+	} else {
+		snprintf(buf, buf_size, "--%s", long_name);
+	}
+	return buf;
+}
+
+char *command_name_in_brackets(char *buf, size_t buf_size, char short_name, char *long_name) {
+	if (short_name) {
+		snprintf(buf, buf_size, "--%s (-%c)", long_name, short_name);
+	 } else {
+		snprintf(buf, buf_size, "--%s", long_name);
+	 }
+	return buf;
+}
+
+void print_options_usage(cli_option* options, const char *separator,
+		int (*view)(cli_option* options, int flag), int flag)
+{
+	int print_separator = 0;
+	int i;
+
+	if (NULL == options) {
+		return;
+	}
+
+	for (i = 0; options[i].long_name != NULL; ++i) {
+		if (0 == view(&options[i], flag)) {
+			continue;
+		}
+
+		if (print_separator) {
+			/* Separator */
+			cas_printf(LOG_INFO, "%s", separator);
+		}
+		print_separator = 1;
+
+		/* Long option name */
+		cas_printf(LOG_INFO, "--%s", options[i].long_name);
+
+		/* Parameter */
+		if (options[i].arg != NULL) {
+			cas_printf(LOG_INFO, " <%s>",
+			options[i].arg);
+		}
+	}
+}
+
+void print_command_header(const app *app_values, const cli_command *cmd)
+{
+	cas_printf(LOG_INFO, "%s%s\n\n", PADDING,
+			cmd->long_desc != NULL ? cmd->long_desc : cmd->desc);
+}
+
+void print_list_options(cli_option* options, int flag,
+		int (*view)(cli_option* options, int flag))
+{
+	char buffer[2048];
+
+	for (; options->long_name != NULL; options++) {
+		char *desc = options->desc;
+		char short_name[3];
+
+		if (0 == view(options, flag)) {
+			continue;
+		}
+
+		if ((options->flags & CLI_OPTION_RANGE_INT)
+		    || (options->flags & CLI_OPTION_DEFAULT_INT)) {
+			desc = buffer;
+
+			if ((options->flags & CLI_OPTION_RANGE_INT)
+			    && (options->flags
+				& CLI_OPTION_DEFAULT_INT)) {
+				snprintf(buffer, sizeof(buffer), options->desc,
+					 options->min_value,
+					 options->max_value,
+					 options->default_value);
+			} else if (options->flags & CLI_OPTION_DEFAULT_INT) {
+				snprintf(buffer, sizeof(buffer), options->desc,
+					 options->default_value);
+			} else if (options->flags & CLI_OPTION_RANGE_INT) {
+				snprintf(buffer, sizeof(buffer), options->desc,
+					 options->min_value,
+					 options->max_value);
+			}
+		}
+
+		get_short_name_string(options->short_name, short_name);
+		if (options->arg != NULL) {
+			char buf[MAX_OPT_HELP_LEN];
+			if (options->flags & CLI_OPTION_OPTIONAL_ARG) {
+				snprintf(buf, MAX_OPT_HELP_LEN, "--%s [<%s>]",
+					 options->long_name, options->arg);
+			} else {
+				snprintf(buf, MAX_OPT_HELP_LEN, "--%s <%s>",
+					 options->long_name, options->arg);
+			}
+
+			cas_printf(LOG_INFO, "%s%-4s%-32s%s\n", PADDING,
+				   short_name, buf, desc);
+		} else {
+			cas_printf(LOG_INFO, "%s%-4s--%-30s%s\n", PADDING,
+				   short_name, options->long_name, desc);
+		}
+	}
+}
+
+static void print_options_help(cli_option *options)
+{
+	char buffer[2048];
+	int i;
+
+	for (i = 0; options[i].long_name != NULL; ++i) {
+		char *desc = options[i].desc;
+		char short_name[3];
+		if (options[i].flags & CLI_OPTION_HIDDEN) {
+			continue;
+		}
+
+		if ((options[i].flags & CLI_OPTION_RANGE_INT)
+		     || (options[i].flags & CLI_OPTION_DEFAULT_INT) ) {
+			desc = buffer;
+
+			if ((options[i].flags & CLI_OPTION_RANGE_INT)
+			     && (options[i].flags & CLI_OPTION_DEFAULT_INT) ) {
+				snprintf(buffer, sizeof(buffer), options[i].desc,
+					options[i].min_value,
+					options[i].max_value,
+					options[i].default_value);
+			} else if (options[i].flags & CLI_OPTION_DEFAULT_INT) {
+				snprintf(buffer, sizeof(buffer), options[i].desc,
+					options[i].default_value);
+			} else if (options[i].flags & CLI_OPTION_RANGE_INT) {
+				snprintf(buffer, sizeof(buffer), options[i].desc,
+					options[i].min_value,
+					options[i].max_value);
+			}
+		}
+		get_short_name_string(options[i].short_name, short_name);
+		if (options[i].arg != NULL) {
+			char buf[MAX_OPT_HELP_LEN];
+			if (options[i].flags & CLI_OPTION_OPTIONAL_ARG) {
+				snprintf(buf, MAX_OPT_HELP_LEN, "--%s [<%s>]",
+					 options[i].long_name,
+					 options[i].arg);
+			} else {
+				snprintf(buf, MAX_OPT_HELP_LEN, "--%s <%s>",
+					 options[i].long_name,
+					 options[i].arg);
+			}
+
+			cas_printf(LOG_INFO, "%s%-4s%-32s%s\n", PADDING,
+					short_name, buf, desc);
+		} else {
+			cas_printf(LOG_INFO, "%s%-4s--%-30s%s\n", PADDING,
+					short_name, options[i].long_name,
+					desc);
+		}
+	}
+}
+
+static void print_namespace_help(app *app_values, cli_command *cmd)
+{
+	char command_name[MAX_STR_LEN];
+	char option_name[MAX_STR_LEN];
+	cli_namespace *ns = cmd->namespace;
+	int i;
+
+	cas_printf(LOG_INFO, "Usage: %s --%s --%s <NAME>\n\n", app_values->name,
+			cmd->name, ns->long_name);
+
+	print_command_header(app_values, cmd);
+
+	command_name_in_brackets(command_name, MAX_STR_LEN, cmd->short_name, cmd->name);
+	command_name_in_brackets(option_name, MAX_STR_LEN, ns->short_name, ns->long_name);
+
+
+	cas_printf(LOG_INFO, "Valid values of NAME are:\n");
+	for (i = 0; ns->entries[i].name; ++i)
+		cas_printf(LOG_INFO, "%s%s - %s\n", PADDING, ns->entries[i].name, ns->entries[i].desc);
+
+	cas_printf(LOG_INFO, "\n");
+
+	for (i = 0; ns->entries[i].name; ++i) {
+		cas_printf(LOG_INFO, "Options that are valid with %s %s %s are:\n",
+				command_name, option_name, ns->entries[i].name);
+		print_options_help(ns->entries[i].options);
+		if (ns->entries[i + 1].name)
+			cas_printf(LOG_INFO, "\n");
+	}
+}
+
+static void print_command_help(app *app_values, cli_command *cmd)
+{
+	int all_mandatory = 1;
+	int all_hidden = 1;
+	int i;
+
+	if (cmd->help) {
+		(cmd->help)(app_values, cmd);
+		return;
+	}
+
+	if (cmd->namespace) {
+		print_namespace_help(app_values, cmd);
+		return;
+	}
+
+	cas_printf(LOG_INFO, "Usage: %s --%s", app_values->name, cmd->name);
+
+	if (cmd->options != NULL) {
+		for (i = 0; cmd->options[i].long_name != NULL; ++i) {
+			if (cmd->options[i].flags & CLI_OPTION_HIDDEN) {
+				continue;
+			}
+
+			all_hidden = 0;
+
+			if (cmd->options[i].flags & CLI_OPTION_REQUIRED) {
+				cas_printf(LOG_INFO, " --%s", cmd->options[i].long_name);
+				if (cmd->options[i].arg != NULL) {
+					if (cmd->options[i].flags & CLI_OPTION_OPTIONAL_ARG) {
+						cas_printf(LOG_INFO, " [<%s>]", cmd->options[i].arg);
+					} else {
+						cas_printf(LOG_INFO, " <%s>", cmd->options[i].arg);
+					}
+				}
+			} else {
+				all_mandatory = 0;
+			}
+		}
+
+		if (!all_mandatory) {
+			cas_printf(LOG_INFO, " [option...]");
+		}
+	}
+	cas_printf(LOG_INFO, "\n\n");
+
+	print_command_header(app_values, cmd);
+
+	if (cmd->options && !all_hidden) {
+		char option_name[MAX_STR_LEN];
+		command_name_in_brackets(option_name, MAX_STR_LEN, cmd->short_name, cmd->name);
+		cas_printf(LOG_INFO, "Options that are valid with %s are:\n", option_name);
+		print_options_help(cmd->options);
+	}
+}
+
+void print_help(const app *app_values, const cli_command *commands)
+{
+	int i;
+
+	cas_printf(LOG_INFO, "%s\n\n", app_values->title);
+	print_short_usage(app_values);
+	cas_printf(LOG_INFO, "\nAvailable commands:\n");
+
+	for (i = 0;; ++i) {
+		char short_name[3];
+
+		if (commands[i].name == NULL) {
+			break;
+		}
+
+		if (is_command_hidden(commands, i))
+			continue;
+
+		get_short_name_string(commands[i].short_name, short_name);
+
+		cas_printf(LOG_INFO, "%s%-4s--%-25s%s\n", PADDING, short_name,
+				commands[i].name, commands[i].desc);
+	}
+
+	cas_printf(LOG_INFO, "\nFor detailed help on the above commands use --help after the command.\n"
+			"e.g.\n%s%s --%s --help\n",
+			PADDING, app_values->name, commands[0].name);
+
+	if (app_values->man != NULL) {
+		cas_printf(LOG_INFO,
+			   "For more information, please refer to manual, Admin Guide (man %s)\n"
+			   "or go to support page <http://www.intel.com/support/go/cas>.\n",
+			   app_values->man);
+	} else {
+		cas_printf(LOG_INFO,
+			   "For more information, please refer to manual, Admin Guide\n"
+			   "or go to support page <http://www.intel.com/support/go/cas>.\n");
+	}
+}
+
+static int args_is_unrecognized(const char *cmd)
+{
+	if (strempty(cmd)) {
+		return 1;
+	}
+
+	if ('-' == cmd[0]) {
+		char c = cmd[1];
+
+		/* Check if short option (command) is proper */
+		if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
+			if ('\0' == cmd[2]) {
+				return 0;
+			} else {
+				return 1;
+			}
+		}
+
+		if ('-' == cmd[1]) {
+			char c = cmd[2];
+			/* Long option (command), check if it is valid */
+
+			if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
+				return 0;
+			}
+		}
+	}
+
+	return 1;
+}
+
+static int args_is(const char *in, const char *arg, const char c)
+{
+	if (strempty(in)) {
+		return 0;
+	}
+
+	if ('-' == in[0]) {
+		if (0 != c && c == in[1]) {
+			if ('\0' == in[2]) {
+				return 1;
+			}
+		}
+
+		if ('-' == in[1]) {
+			/* Long option */
+			if (0 == strncmp(&(in[2]), arg, MAX_STR_LEN)) {
+				return 1;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static int is_help(const char* cmd)
+{
+	return args_is(cmd, "help", 'H');
+}
+
+static int get_help_position(int argc, const char **argv)
+{
+	int i;
+	for (i = 2; i < argc; i++) {
+		if (is_help(argv[i])) {
+			return i;
+		}
+	}
+
+	return -1;
+}
+
+static int get_option(const cli_option *options, const char* opt)
+{
+	int i;
+
+	for (i = 0; options[i].long_name; ++i) {
+		if (args_is(opt, options[i].long_name, options[i].short_name)) {
+			return i;
+		}
+	}
+
+	return -1;
+}
+
+/**
+ * log command as it was entered in CLI
+ */
+void log_command(int argc, const char **argv, int result, long long int timespan)
+{
+	const int def_cmd_buf_len = 100;
+	int cmd_buf_len = def_cmd_buf_len;
+	int cmd_len = 0;
+	int i = 0;
+	char *command = malloc(cmd_buf_len);
+
+	if (!command) {
+		cas_printf(LOG_ERR, "Memory allocation failed for logging.");
+		return;
+	}
+
+	for (i = 0 ; i != argc ; ++i) {
+		int tok_len = strnlen_s(argv[i], MAX_STR_LEN);
+		/* if reconstructed command width is longer than current
+		 * cmd_buf_len (length of command buffer), than resize it
+		 * to make it twice as big.
+		 */
+		if (tok_len + 1 + cmd_len > cmd_buf_len) {
+			cmd_buf_len = (tok_len + 1 + cmd_buf_len) * 2;
+			char *tmp = realloc(command, cmd_buf_len);
+			/* if reallocation failed, cancel logging */
+			if (!tmp) {
+				cas_printf(LOG_ERR,
+					   "Memory allocation failed for logging.");
+				free(command);
+				return;
+			}
+			command = tmp;
+		}
+		/* append additional token to a string */
+		memcpy_s(command + cmd_len, cmd_buf_len - cmd_len,
+			 argv[i], tok_len);
+		cmd_len += tok_len;
+		/* either a space or a null terminator */
+		command[cmd_len] = (i == argc - 1) ? 0 : ' ';
+		cmd_len++;
+	}
+
+	caslog(LOG_DEBUG, "Casadm invoked with: \"%s\". "
+			"Exit status is %d (%s). Command took %lld.%02lld s.",
+			command, result, result? "failure" : "success",
+			timespan / 1000, (timespan % 1000) / 10);
+	free(command);
+}
+
+/**
+ * run command. Additionally log its execution and report any errors if
+ * they've happened
+ */
+int run_command(cli_command *commands, int cmd, int argc, const char **argv)
+{
+	int result;
+	const char *syslog_path = "/var/log/messages";
+	/* time buffer and stat buffer after running command */
+	struct timeb t0;
+	FILE *messages_f;
+	/* time buffer and stat buffer after running command */
+	struct timeb t1;
+	long long int timespan;
+
+	/* collect time */
+	ftime(&t0);
+	/* collect stat buffer for syslog */
+	messages_f = fopen(syslog_path, "r");
+	if (messages_f) {
+		fseek(messages_f, 0, SEEK_END);
+		/* if opening file failed, don't stop command execution.
+		 * - just omit checking for /var/log/messages at the end
+		 */
+	} else {
+		/* ubuntu case*/
+		syslog_path = "/var/log/syslog";
+		messages_f = fopen(syslog_path, "r");
+		if (messages_f) {
+			fseek(messages_f, 0, SEEK_END);
+		}
+	}
+
+	/* execute CAS command */
+	result = commands[cmd].handle();
+	ftime(&t1);
+	timespan = (1000 * (t1.time - t0.time) + t1.millitm - t0.millitm);
+
+	if (commands[cmd].short_name != 'V') {
+		log_command(argc, argv, result, timespan);
+	}
+
+	/* print extra warning message IF command ended with failure and
+	 * syslog contains something */
+	if (FAILURE == result && messages_f) {
+		char line_buf[MAX_STR_LEN];
+		bool kernel_said = false; /* set to true if CAS kernel module
+					   * said anything during command
+					   * execution */
+		while (fgets(line_buf, MAX_STR_LEN - 1, messages_f)) {
+			line_buf[MAX_STR_LEN - 1] = 0;
+			if (strstr(line_buf, "CAS") &&
+			    strstr(line_buf, "kernel")) {
+				kernel_said = true;
+			}
+		}
+
+		if (kernel_said) {
+			fprintf(stderr, "Error occurred, "
+				   "please see syslog (%s) for details. \n",
+				   syslog_path);
+		}
+	}
+
+	if (messages_f) {
+		fclose(messages_f);
+	}
+
+	return result;
+}
+
+static int count_arg_params(const char **argv, int argc)
+{
+	int i = 0;
+
+	for (i = 0; i < argc; i++) {
+		if ('-' == argv[i][0] && 0 != argv[i][1]) {
+			break;
+		}
+	}
+
+	return i;
+}
+
+void configure_cli_commands(cli_command *commands)
+{
+	cli_command *cmd = commands;
+	int ret;
+
+	while(cmd->name) {
+		if (cmd->configure) {
+			ret = cmd->configure(cmd);
+			if (ret < 0) {
+				cmd->flags |= CLI_COMMAND_HIDDEN;
+			}
+		}
+		cmd++;
+	}
+}
+
+int args_parse(app *app_values, cli_command *commands, int argc, const char **argv)
+{
+	int i, j, k, status = SUCCESS;
+	int args_count, args_offset;
+	const char **args_list = NULL;
+	const char* cmd_name = argv[1];
+	cli_ns_entry *entry = NULL;
+	cli_option *options;
+	int cmd, first_opt;
+
+	if (argc < 2) {
+		cas_printf(LOG_ERR, "No command given.\n");
+		print_info(app_values);
+		return FAILURE;
+	}
+
+	if (args_is_unrecognized(cmd_name)) {
+		cas_printf(LOG_ERR, "Unrecognized command %s\n", cmd_name);
+		print_info(app_values);
+		return FAILURE;
+	}
+
+	for (i = 0;; ++i) {
+		if (commands[i].name == NULL) {
+			if (is_help(cmd_name)) {
+				print_help(app_values, commands);
+				return SUCCESS;
+			} else {
+				cas_printf(LOG_ERR, "Unrecognized command %s\n",
+						cmd_name);
+				print_info(app_values);
+			}
+			return FAILURE;
+		} else if (args_is(cmd_name, commands[i].name, commands[i].short_name)) {
+			cmd = i;
+			break;
+		}
+	}
+
+	configure_cli_commands(commands);
+
+	if (argc >= 3 && get_help_position(argc, argv) != -1) {
+		if (!is_command_hidden(commands, i)) {
+			print_command_help(app_values, &commands[i]);
+		}
+		return SUCCESS;
+	}
+
+	if (is_su_requied(commands, cmd)) {
+		if (getuid() != 0) {
+			cas_printf(LOG_ERR, "Must be run as root.\n");
+			return FAILURE;
+		}
+	}
+
+	if (commands[cmd].options) {
+		options = commands[cmd].options;
+		first_opt = 2;
+	} else if (commands[cmd].namespace) {
+		if (argc < 3) {
+			cas_printf(LOG_ERR, "Missing namespace option.\n");
+			print_info(app_values);
+			return FAILURE;
+		}
+		if (argc < 4) {
+			cas_printf(LOG_ERR, "Missing namespace name.\n");
+			print_info(app_values);
+			return FAILURE;
+		}
+		if (!args_is(argv[2], commands[cmd].namespace->long_name,
+				commands[cmd].namespace->short_name)) {
+			cas_printf(LOG_ERR, "Unrecognized option.\n");
+			print_info(app_values);
+			return FAILURE;
+		}
+
+		entry = commands[cmd].namespace->entries;
+		while (true) {
+			if (!strcmp(argv[3], entry->name))
+				break;
+			if (!(++entry)->name) {
+				cas_printf(LOG_ERR, "Unrecognized namespace entry.\n");
+				print_info(app_values);
+				return FAILURE;
+			}
+		}
+		options = entry->options;
+		first_opt = 4;
+	} else {
+		return run_command(commands, cmd, argc, argv);
+	}
+
+	/* for each possible option:
+	 *  - if it is required, check if it is supplied exactly once
+	 *  - if it is not required, check if it is supplied at most once
+	 */
+	for (i = 0; options[i].long_name; ++i) {
+		char option_name[MAX_STR_LEN];
+
+		/* count occurrences of an option (k as counter) */
+		k = 0;
+		for (j = first_opt; j < argc; ++j) {
+			if (args_is(argv[j], options[i].long_name,
+					options[i].short_name)) {
+				k++;
+			}
+		}
+
+		command_name_with_slash(option_name, MAX_STR_LEN,
+			options[i].short_name, options[i].long_name);
+
+		if (options[i].flags & CLI_OPTION_REQUIRED) {
+			if (!k) {
+				cas_printf(LOG_ERR, "Missing required option %s\n",  option_name);
+				print_info(app_values);
+				return FAILURE;
+			}
+		}
+		if (k > 1) {
+			cas_printf(LOG_ERR, "Option supplied more than once %s\n", option_name);
+			print_info(app_values);
+			return FAILURE;
+		}
+	}
+
+	/* Store parameters for arguments. Terminate each list with NULL element.
+	 * Accomodate for max no of parameters */
+	args_list = malloc(sizeof(*args_list) * (argc + 1));
+
+	if (args_list == NULL) {
+		return FAILURE;
+	}
+
+	/* iterate over all arguments that were actually passed to the CLI */
+	args_count = args_offset = 0;
+	for (i = first_opt; i < argc; ++i) {
+		int opt;
+
+		if (args_is_unrecognized(argv[i])) {
+			cas_printf(LOG_ERR, "Invalid format %s\n",
+					argv[i]);
+			print_info(app_values);
+
+			status = FAILURE;
+			goto free_args;
+		}
+
+		opt = get_option(options, argv[i]);
+		if (opt == -1) {
+			cas_printf(LOG_ERR, "Unrecognized option %s\n",
+					argv[i]);
+			print_info(app_values);
+
+			status = FAILURE;
+			goto free_args;
+		}
+
+		if (options[opt].arg != NULL) {
+
+			/* Count params for current argument. */
+			args_count = count_arg_params(&argv[i + 1], argc - i - 1);
+
+			if (args_count == 0 && !(options[opt].flags & CLI_OPTION_OPTIONAL_ARG)) {
+
+				cas_printf(LOG_ERR, "Missing required argument in %s\n",
+						argv[i]);
+				print_info(app_values);
+
+				status = FAILURE;
+				goto free_args;
+			}
+
+			if (-1 != options[opt].args_count &&
+				args_count != options[opt].args_count &&
+				(0 != args_count || !(options[opt].flags & CLI_OPTION_OPTIONAL_ARG))) {
+
+				cas_printf(LOG_ERR, "Invalid number of arguments for %s\n",
+						argv[i]);
+				print_info(app_values);
+
+				status = FAILURE;
+				goto free_args;
+			}
+
+			/* Add params for current argument.
+			 * Terminate list with NULL element.*/
+			for (k = args_offset, j = 0; j < args_count; j++) {
+				args_list[k++] = argv[j + i + 1];
+			}
+			args_list[args_offset + args_count] = NULL;
+
+			i += args_count;
+		}
+
+		if (commands[cmd].command_handle_opts) {
+			status = commands[cmd].command_handle_opts(
+					options[opt].long_name,
+					&args_list[args_offset]);
+		} else if (commands[cmd].namespace_handle_opts) {
+			status = commands[cmd].namespace_handle_opts(
+					entry->name,
+					options[opt].long_name,
+					&args_list[args_offset]);
+		} else {
+			cas_printf(LOG_ERR, "Internal error\n");
+			status = FAILURE;
+			goto free_args;
+		}
+		args_offset += args_count;
+
+		if (0 != status) {
+			cas_printf(LOG_ERR, "Error during options handling\n");
+			print_info(app_values);
+
+			status = FAILURE;
+			goto free_args;
+		}
+	}
+
+	status = run_command(commands, cmd, argc, argv);
+
+free_args:
+	if (NULL != args_list) {
+		free(args_list);
+		args_list = NULL;
+	}
+
+	return status;
+}

casadm/argp.h

@@ -0,0 +1,133 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef _ARGP_H
+#define _ARGP_H
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+enum CLI_OPTION_FLAGS {
+	CLI_OPTION_REQUIRED		= 1 << 0,
+	CLI_OPTION_HIDDEN		= 1 << 1,
+	CLI_OPTION_RANGE_INT		= 1 << 2, /*! if option has a min/max value */
+	CLI_OPTION_DEFAULT_INT		= 1 << 3, /*! if option has a default value */
+	CLI_OPTION_OPTIONAL_ARG		= 1 << 4  /*! if option argument is optional */
+};
+
+enum CLI_COMMAND_FLAGS {
+	CLI_SU_REQUIRED			= 1 << 0,
+	CLI_COMMAND_HIDDEN		= 1 << 1
+};
+
+#define	ERROR		-1
+#define	SUCCESS		0
+#define	FAILURE		1
+
+/**
+ * structure repsesenting each single option for CLI command (i.e. -i, -j for -R)
+ */
+typedef struct {
+	char short_name;	/*!< short option name, one-letter. i.e. 'i' representing -i
+				 *!< as --cache-id */
+	char* long_name;	/*!< long option name (in above described case it would be
+				 *!< "cache-id" */
+	char* desc;		/*!< description of an option (longer text...
+				 *!< may contain single %d for default value and/or pair of %d marks
+				 *!< for range of correct values. If it has both, default must come
+				 *!< after the range, so be careful about wording such messages) */
+	int args_count;		/*!< number of arguments (0 - no arguments, -1 - unspecified) */
+	char* arg;		/*!< type of an argument, descriptive. i.e. "NUM", "NAME" */
+	int flags;		/*!< as per CLI_OPTION_FLAGS */
+	int min_value;		/*!< min parameter value. (optional) */
+	int max_value;		/*!< max parameter value. (optional) */
+	int default_value;	/*!< default parameter value. (optional) */
+	int priv;		/*!< Private filed for command handler */
+} cli_option;
+
+/*
+ * In namespace entries options array is nested in another flexible array
+ * (array of entries), so it cannot be flexible array itself. Because of that
+ * we make it static array of options with reasonable lenght.
+ */
+#define MAX_OPTIONS 32
+
+typedef struct {
+	char* name;		/*!< namespace entry name */
+	char* desc;		/*!< description of an namespace entry */
+	cli_option options[MAX_OPTIONS];
+				/*!< pointer to first element in null-terminated array of cli_option */
+} cli_ns_entry;
+
+typedef struct {
+	char short_name;	/*!< short name of namespace */
+	char* long_name;	/*!< long name of namespace */
+	cli_ns_entry entries[];	/*!< null-terminated array of namespace entries */
+} cli_namespace;
+
+typedef struct {
+	const char* name;
+	char* info;
+	char* title;
+	char* doc;
+	char* man;
+	int block;
+} app;
+
+struct _cli_command;
+typedef struct _cli_command cli_command;
+
+/**
+ * structure representing each CLI command, i.e. -S, -T...
+ */
+struct _cli_command {
+	char* name;		/*!< name of command (i.e. "start-cache" for --start-cache) */
+
+	char short_name;	/*!< short name of command (i.e. "S" for -S/--start-cache) */
+
+	char* desc;		/*!< description that appears with "casadm -H" invocation */
+
+	char* long_desc;	/*!< option descripotion that appears with "casadm -O -H invocation */
+
+	cli_option* options;	/*!< pointer to first element in null-terminated array of cli_option */
+
+	int (*command_handle_opts)(char*, const char**);
+				/*! function pointer to function that processes options to command */
+
+	cli_namespace* namespace;
+				/*! namespace description */
+
+	int (*namespace_handle_opts)(char*, char*, const char**);
+				/*! function pointer to function that processes options to namespace */
+
+	int (*handle)(void);	/*! function pointer to function that executes a command */
+
+	int flags;		/*! command flags, as per CLI_COMMAND_FLAGS */
+
+	void (*help)(app *app_values, cli_command *cmd);
+				/*! Custom help provider */
+	int (*configure)(cli_command *cmd);
+				/*! function pointer to function that configures command */
+};
+
+char *command_name_in_brackets(char *buf, size_t buf_size, char short_name, char *long_name);
+
+void print_help(const app *app_values, const cli_command *commands);
+
+void print_options_usage(cli_option* options, const char *separator,
+		int (*view)(cli_option* options, int flag), int flag);
+
+void print_list_options(cli_option* options, int flag,
+		int (*view)(cli_option* options, int flag));
+
+void print_command_header(const app *app_values, const cli_command *cmd);
+
+void configure_cli_commands(cli_command *commands);
+
+int args_parse(app *app_values, cli_command *commands, int argc, const char **argv);
+
+#endif

casadm/cas_lib.h

@@ -0,0 +1,297 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __CAS_LIB_H__
+#define __CAS_LIB_H__
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+#include <syslog.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <stdarg.h>
+#include "safeclib/safe_str_lib.h"
+#include <cas_ioctl_codes.h>
+#include <sys/utsname.h>
+
+#define CTRL_DEV_PATH "/dev/cas_ctrl"
+
+#define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
+
+#define FAILURE 1		/**< default non-zero exit code. */
+#define INTERRUPTED 2		/**< if command is interrupted */
+#define SUCCESS 0		/**< 0 exit code from majority of our functions
+				     stands for success */
+
+struct core_device {
+	int id;
+	int cache_id;
+	char path[MAX_STR_LEN];
+	struct kcas_core_info info;
+};
+
+struct cache_device {
+	int id;
+	int state;
+	int expected_core_count;
+	char device[MAX_STR_LEN];
+	int mode;
+	int eviction_policy;
+	int cleaning_policy;
+	int dirty;
+	int flushed;
+	unsigned size;
+	int core_count;
+	struct core_device cores[];
+};
+
+struct cas_param {
+	char *name;
+	char *unit;
+	char **value_names;
+	uint32_t (*transform_value)(uint32_t value);
+	uint32_t value;
+	bool select;
+};
+
+enum output_format_t {
+	OUTPUT_FORMAT_INVALID = 0,
+	OUTPUT_FORMAT_TABLE = 1,
+	OUTPUT_FORMAT_CSV = 2,
+	OUTPUT_FORMAT_DEFAULT = OUTPUT_FORMAT_TABLE
+};
+
+enum metadata_mode_t {
+	METADATA_MODE_INVALID = 0,
+	METADATA_MODE_NORMAL,
+	METADATA_MODE_ATOMIC,
+	METADATA_MODE_DEFAULT = METADATA_MODE_NORMAL,
+};
+
+#define STATS_FILTER_INVALID 0
+#define STATS_FILTER_CONF (1 << 0)
+#define STATS_FILTER_USAGE  (1 << 1)
+#define STATS_FILTER_REQ (1 << 2)
+#define STATS_FILTER_BLK (1 << 3)
+#define STATS_FILTER_ERR (1 << 4)
+#define STATS_FILTER_IOCLASS (1 << 5)
+#define STATS_FILTER_ALL (STATS_FILTER_CONF |	\
+			  STATS_FILTER_USAGE |	\
+			  STATS_FILTER_REQ |	\
+			  STATS_FILTER_BLK |	\
+			  STATS_FILTER_ERR)
+#define STATS_FILTER_DEFAULT STATS_FILTER_ALL
+
+#define STATS_FILTER_COUNTERS (STATS_FILTER_REQ | STATS_FILTER_BLK | STATS_FILTER_ERR)
+
+const char *eviction_policy_to_name(uint8_t policy);
+const char *cleaning_policy_to_name(uint8_t policy);
+const char *cache_mode_to_name(uint8_t cache_mode);
+const char *get_cache_state_name(int cache_state);
+const char *get_core_state_name(int core_state);
+const char *metadata_variant_to_name(uint8_t variant);
+const char *metadata_mode_to_name(uint8_t metadata_mode);
+const char *seq_cutoff_policy_to_name(uint8_t seq_cutoff_policy);
+
+__attribute__((format(printf, 2, 3)))
+typedef int (*cas_printf_t)(int log_level, const char *format, ...);
+
+extern cas_printf_t cas_printf;
+
+__attribute__((format(printf, 2, 3)))
+int caslog(int log_level, const char *template, ...);
+
+#define CAS_CLI_HELP_METADATA_VARIANTS \
+	CAS_METADATA_VARIANT_MAX"|" \
+	CAS_METADATA_VARIANT_MIX"|" \
+	CAS_METADATA_VARIANT_MIN
+
+/* for CLI commands arguments */
+#define YES 1
+#define NO 0
+#define UNDEFINED -1
+void metadata_memory_footprint(uint64_t size, float *footprint, const char **units);
+
+int start_cache(ocf_cache_id_t cache_id, unsigned int cache_init,
+		const char *cache_device, ocf_cache_mode_t cache_mode,
+		ocf_eviction_t eviction_policy_type,
+		ocf_cache_line_size_t line_size, int force);
+int stop_cache(ocf_cache_id_t cache_id, int flush);
+
+#ifdef WI_AVAILABLE
+#define CAS_CLI_HELP_START_CACHE_MODES "wt|wb|wa|pt|wi"
+#define CAS_CLI_HELP_SET_CACHE_MODES "wt|wb|wa|pt|wi"
+#define CAS_CLI_HELP_SET_CACHE_MODES_FULL "Write-Through, Write-Back, Write-Around, Pass-Through, Write-Invalidate"
+#define CAS_CLI_HELP_START_CACHE_MODES_FULL "Write-Through, Write-Back, Write-Around, Pass-Through, Write-Invalidate"
+#else
+#define CAS_CLI_HELP_START_CACHE_MODES "wt|wb|wa|pt"
+#define CAS_CLI_HELP_SET_CACHE_MODES "wt|wb|wa|pt"
+#define CAS_CLI_HELP_START_CACHE_MODES_FULL "Write-Through, Write-Back, Write-Around, Pass-Through"
+#define CAS_CLI_HELP_SET_CACHE_MODES_FULL "Write-Through, Write-Back, Write-Around, Pass-Through"
+#endif
+
+/**
+ * @brief handle set cache param command
+ * @param cache_id id of cache device
+ * @param params parameter array
+ * @return exit code of successful completion is 0;
+ * nonzero exit code means failure
+ */
+int cache_params_set(unsigned int cache_id, struct cas_param *params);
+
+/**
+ * @brief get cache param value
+ * @param cache_id id of cache device
+ * @param param_id id of cache parameter to retrive
+ * @param param variable to pass value to caller
+ * @return exit code of successful completion is 0;
+ * nonzero exit code means failure
+ */
+int cache_get_param(unsigned int cache_id, unsigned int param_id,
+		struct cas_param *param);
+/**
+ * @brief handle get cache param command
+ * @param cache_id id of cache device
+ * @param params parameter array
+ * @return exit code of successful completion is 0;
+ * nonzero exit code means failure
+ */
+int cache_params_get(unsigned int cache_id, struct cas_param *params,
+		unsigned int output_format);
+
+/**
+ * @brief handle set core param command
+ * @param cache_id id of cache device
+ * @param core_id id of core device
+ * @param params parameter array
+ * @return exit code of successful completion is 0;
+ * nonzero exit code means failure
+ */
+int core_params_set(unsigned int cache_id, unsigned int core_id,
+		struct cas_param *params);
+
+/**
+ * @brief handle get core param command
+ * @param cache_id id of cache device
+ * @param core_id id of core device
+ * @param params parameter array
+ * @return exit code of successful completion is 0;
+ * nonzero exit code means failure
+ */
+int core_params_get(unsigned int cache_id, unsigned int core_id,
+		struct cas_param *params, unsigned int output_format);
+
+/**
+ * @brief handle set cache mode (-Q) command
+ * @param in cache mode identifier of cache mode (WRITE_BACK, WRITE_THROUGH etc...)
+ * @param cache_id id of cache device
+ * @param flush whenever we should flush cache during execution of command. Options: YES, NO, UNDEFINED.
+ *              (UNDEFINED is illegal when transitioning from Write-Back mode to any other mode)
+ */
+int set_cache_mode(unsigned int cache_state, unsigned int cache_id, int flush);
+
+/**
+ * @brief add core device to a cache
+ *
+ * @param cache_id cache to which new core is being added
+ * @param core_device path to a core device that is being added
+ * @param iogroup_id id of iogroup (this parameter is not exposed in user CLI)
+ * @param try_add try add core to earlier loaded cache or add to core pool
+ * @param update_path try update path to core device
+ * @return 0 upon successful core addition, 1 upon failure
+ */
+int add_core(unsigned int cache_id, unsigned int core_id, const char *core_device, int try_add, int update_path);
+
+int get_core_info(int fd, int cache_id, int core_id, struct kcas_core_info *info);
+
+int remove_core(unsigned int cache_id, unsigned int core_id,
+		bool detach, bool force_no_flush);
+
+int core_pool_remove(const char *core_device);
+int get_core_pool_count(int fd);
+
+int reset_counters(unsigned int cache_id, unsigned int core_id);
+
+int flush_cache(unsigned int cache_id);
+int flush_core(unsigned int cache_id, unsigned int core_id);
+
+int get_cas_capabilites_quiet(struct kcas_capabilites *caps);
+int get_cas_capabilites(struct kcas_capabilites *caps);
+
+int nvme_format(const char *device_path, int metadata_mode, int force);
+
+int check_cache_device(const char *device_path);
+
+int partition_list(unsigned int cache_id, unsigned int output_format);
+int partition_setup(unsigned int cache_id, const char *file);
+int partition_is_name_valid(const char *name);
+
+int cas_module_version(char *buff, int size);
+int disk_module_version(char *buff, int size);
+int list_caches(unsigned int list_format);
+int cache_status(unsigned int cache_id, unsigned int core_id, int io_class_id,
+		 unsigned int stats_filters, unsigned int stats_format);
+int get_inactive_core_count(const struct kcas_cache_info *cache_info);
+
+int open_ctrl_device_quiet();
+int open_ctrl_device();
+int *get_cache_ids(int *cache_count);
+struct cache_device *get_cache_device_by_id_fd(int cache_id, int fd);
+struct cache_device **get_cache_devices(int *caches_count);
+void free_cache_devices_list(struct cache_device **caches, int caches_count);
+
+int validate_dev(const char *dev_path);
+int validate_str_num(const char *source_str, const char *msg, long long int min, long long int max);
+int validate_str_num_sbd(const char *source_str, const char *msg, int min, int max);
+int validate_str_unum(const char *source_str, const char *msg, unsigned int min,
+		unsigned int max);
+int validate_path(const char *path, int exist);
+
+int validate_str_cache_mode(const char *s);
+int validate_str_ev_policy(const char *s);
+int validate_str_cln_policy(const char *s);
+int validate_str_meta_variant(const char *s);
+int validate_str_stats_filters(const char* s);
+int validate_str_output_format(const char* s);
+int validate_str_metadata_mode(const char* s);
+
+/**
+ * @brief calculate flush progress
+ *
+ * @param[in] dirty number of dirty blocks
+ * @param[in] flush number of flushed blocks
+ * @return flush progress or 0 if no flush is ongoing
+ */
+float calculate_flush_progress(unsigned dirty, unsigned flushed);
+
+/**
+ * @brief calculate flush progress of given cache
+ *
+ * @param[in] cache_id cache to which calculation applies
+ * @param[out] progress flush progress
+ * @return 0 on success, nonzero on failure
+ */
+int get_flush_progress(int unsigned cache_id, float *progress);
+
+/**
+ * @brief print error message corresponding with CAS extended error code.
+ */
+void print_err(int error_code);
+
+/**
+  * @brief get special device file path (/dev/sdX) for disk.
+  */
+int get_dev_path(const char* disk, char* buf, size_t num);
+
+/**
+ * @brief convert string to int
+ */
+bool str_to_int(const char* start, char** end, int *val);
+
+#endif

casadm/cas_lib_utils.c

@@ -0,0 +1,535 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <time.h>
+#include <stdbool.h>
+#include "cas_lib.h"
+#include "extended_err_msg.h"
+#include "cas_lib_utils.h"
+#include "safeclib/safe_str_lib.h"
+#include <pthread.h>
+#include <unistd.h>
+#include <signal.h>
+#include <poll.h>
+#include <execinfo.h>
+extern cas_printf_t cas_printf;
+
+#define IOCTL_RETRIES			3 /* this is how many times ioctl is called */
+
+#define VT100_CLEARLINE		"[K"
+#define ESCAPE				0x1b
+#define CARRIAGE_RETURN		0xd
+#define INVALID_DIRTY_NO ((uint64_t) (-1))
+
+/* file descriptors for pipe */
+/* 1 is writing end, 0 is reading end of a pipe */
+int fdspipe[2];
+/* these must be global for handling signals */
+volatile static int interrupted = 0;	/*!< signal was caught, interrupt the
+					 *!< management operation now! */
+static int finished = 0;		/*!< if management operation has finished
+					 *!< (so that progressbar drawing thread
+					 *!< can either display "100%" or exit quietly */
+static int device_id = 0;		/*!< id of caching device to which management
+					 *!< operation that is underway, applies */
+
+
+/**
+ * Default signal handling function exists so that SIGINT wan't interrupt management
+ * operations in unpredicted/disallowed way.
+ */
+void sig_handler_default(int x)
+{
+	static int inter_counter = 0;
+	inter_counter++;
+	if (inter_counter>4) {
+		cas_printf(LOG_ERR,
+			   "Can't interrupt CAS management process\n");
+	}
+}
+
+/**
+ * If management operation was interrupted due to user action (SIGINT)
+ */
+int was_ioctl_interrupted()
+{
+	return interrupted;
+}
+
+void sig_handler_interrupt_flushing(int x)
+{
+	struct kcas_interrupt_flushing cmd_info;
+	int fd = open(CTRL_DEV_PATH, 0);
+	close(fdspipe[1]);
+	interrupted = 1;
+
+	if (fd < 0) {
+		cas_printf(LOG_ERR, "Device " CTRL_DEV_PATH " not found\n");
+		return;
+	}
+
+	memset(&cmd_info, 0, sizeof(cmd_info));
+	cmd_info.cache_id = device_id;
+
+	int res =
+		run_ioctl(fd, KCAS_IOCTL_INTERRUPT_FLUSHING, &cmd_info);
+
+	close(fd);
+	if (!res) {
+		set_default_sig_handler();
+	}
+}
+
+/**
+ * print current backtrace
+ */
+void dump_stack()
+{
+	const int sym_max = 512;
+	void *sym_buf[sym_max];
+	int nsym;
+	nsym = backtrace(sym_buf, sym_max);
+	backtrace_symbols_fd(sym_buf, nsym, 2);
+}
+
+/**
+ * Sad CAS :(
+ * dump stack to allow debugging.
+ */
+void segv_handler_default(int i)
+{
+	cas_printf(LOG_ERR, "Segmentation fault\n");
+	dump_stack();
+	exit(EXIT_FAILURE);
+}
+
+/**
+ * register default signal handling function
+ */
+void set_default_sig_handler()
+{
+	signal(SIGINT, sig_handler_default);
+	signal(SIGSEGV, segv_handler_default);
+}
+
+/**
+ * handle errors of cafe c library (wrong parameters passed)
+ */
+static void safe_lib_constraint_handler(const char *msg, void *ptr, errno_t error)
+{
+	cas_printf(LOG_ERR, "Safe C lib error\n");
+	if (msg) {
+		cas_printf(LOG_ERR, "%s (%d)\n", msg, error);
+	}
+	dump_stack();
+	exit(EXIT_FAILURE);
+}
+
+/**
+ * Register constraint handler for safe_string_library
+ */
+void set_safe_lib_constraint_handler()
+{
+	set_mem_constraint_handler_s(safe_lib_constraint_handler);
+	set_str_constraint_handler_s(safe_lib_constraint_handler);
+}
+
+int _open_ctrl_device(int quiet)
+{
+	int fd;
+	fd = open(CTRL_DEV_PATH, 0);
+
+	if (fd < 0) {
+		if (!quiet) {
+			cas_printf(LOG_ERR, "Device " CTRL_DEV_PATH
+				" not found\n");
+			cas_printf(LOG_INFO, "Is the kernel module loaded?\n");
+		}
+		return -1;
+	}
+
+	return fd;
+}
+
+int open_ctrl_device_quiet()
+{
+	return _open_ctrl_device(true);
+}
+
+/**
+ * calls open on control device; returns either error (-1) or a valid file descriptor
+ */
+int open_ctrl_device()
+{
+	return _open_ctrl_device(false);
+}
+
+/**
+ * @brief print spinning wheel
+ */
+void print_progress_indicator(float prog, struct progress_status *ps)
+{
+	static const char prog_indicator[] = { '|', '/', '-', '\\', '|', '/', '-', '\\'};
+	/*!< set of characters implementing "spinning wheel" progress indicator */
+	static int max_i = ARRAY_SIZE(prog_indicator);
+	static int i = 0;
+
+	printf("%c%s... [%c]%c" VT100_CLEARLINE,
+		CARRIAGE_RETURN, ps->friendly_name, prog_indicator[i], ESCAPE);
+	if (50 < prog) {
+		/* we're almost there. Ignore all signals at this stage */
+		set_default_sig_handler();
+	}
+
+	i = (i + 1) % max_i;
+	fflush(stdout);
+}
+
+/**
+ * @brief print progress bar once
+ * @param prog degree of progress (0-100)
+ * @param ps structure holding status between progressbar and caller
+ */
+void print_progress_bar(float prog, struct progress_status *ps)
+{
+	/* constants affecting look of progressbar/activity indicator */
+	static const char progress_full = '=';	/*!< represents progress_step of progress */
+	static const char progress_partial = '-';/*!< represents progress of more than 0
+						  *!< but less than progress_step */
+	static const char progress_empty = ' '; /*!< progressbar didn't reach here */
+	static const char delimiter_left = '['; /*!< left delimiter of progress bar */
+	static const char delimiter_right = ']';/*!< right delimiter of progress bar */
+	static const int progress_step = 2;	/*!< progress step - percentage of progress to
+						 *!< be represented by one character. i.e. if
+						 *!< progress stepis set to 2, entire
+						 *!< progressbar is 50 chars wide+2 chars for
+						 *!< delimiters */
+
+	int i, remaining_m;
+	time_t elapsed, remaining_s;
+
+	printf("%c%s... ", CARRIAGE_RETURN, ps->friendly_name);
+	/* carriage return and "name of op"*/
+	putchar(delimiter_left);
+
+	/* make sure, progressbar always moves forward and never backward */
+	if (prog < ps->progress_accumulated) {
+		prog = ps->progress_accumulated;
+	} else {
+		ps->progress_accumulated = prog;
+	}
+
+	/* print actual progress bar */
+	for (i = progress_step; i <= prog; i += progress_step){
+		putchar(progress_full);
+	}
+
+	if (((int)prog) % progress_step) {
+		putchar(progress_partial);
+		i += progress_step;
+	}
+
+	for (; i <= 100; i += progress_step){
+		putchar(progress_empty);
+	}
+
+	elapsed = time(NULL) - ps->time_started;
+
+	remaining_s = ((100 - prog) * elapsed) / (prog ?: 1);
+	remaining_m = remaining_s / 60;
+	remaining_s -= remaining_m * 60;
+
+	if (remaining_m) {
+		/* ESCAPE VT100_CLEARLINE is terminal control sequence to clear "rest
+		 * of the line */
+		printf("%c %3.1f%% [%dm%02lds remaining]%c" VT100_CLEARLINE,
+			delimiter_right, prog, remaining_m, remaining_s, ESCAPE);
+	} else {
+		printf("%c %3.1f%% [%lds remaining]%c" VT100_CLEARLINE,
+			delimiter_right, prog, remaining_s, ESCAPE);
+	}
+
+	fflush(stdout);
+}
+
+/**
+ * @brief either print a progressbar or spinning wheel depending on prog
+ */
+void print_progress_bar_or_indicator(float prog, struct progress_status *ps)
+{
+	if (0.01 > prog || 99.99 < prog) {
+		print_progress_indicator(prog, ps);
+	} else {
+		print_progress_bar(prog, ps);
+	}
+}
+
+/**
+ * initialize progressbar structure;
+ */
+void init_progress_bar(struct progress_status *ps)
+{
+	if (NULL != ps) {
+		memset(ps, 0, sizeof(*ps));
+		ps->dirty_clines_curr = INVALID_DIRTY_NO;
+		ps->dirty_clines_initial = INVALID_DIRTY_NO;
+		ps->time_started = time(NULL);
+	}
+}
+
+void get_core_flush_progress(int fd, int cache_id, int core_id, float *prog)
+{
+	struct kcas_core_info cmd_info;
+
+	memset(&cmd_info, 0, sizeof(cmd_info));
+	cmd_info.cache_id = cache_id;
+	cmd_info.core_id = core_id;
+
+	if (0 == ioctl(fd, KCAS_IOCTL_CORE_INFO, &cmd_info)) {
+		*prog = calculate_flush_progress(cmd_info.stats.dirty,
+				cmd_info.stats.flushed);
+	}
+}
+
+void get_cache_flush_progress(int fd, int cache_id, float *prog)
+{
+	struct kcas_cache_info cmd_info;
+
+	memset(&cmd_info, 0, sizeof(cmd_info));
+	cmd_info.cache_id = cache_id;
+
+	if (0 == ioctl(fd, KCAS_IOCTL_CACHE_INFO, &cmd_info)) {
+		*prog = calculate_flush_progress(cmd_info.info.dirty,
+				cmd_info.info.flushed);
+	}
+}
+
+/**
+ * pthread thread handling function - runs during proper ioctl execution. Prints command progress
+ */
+void *print_command_progress(void *th_arg)
+{
+	static const int
+		show_progressbar_after = 2;	/*!< threshold in seconds */
+
+	int do_print_progress_bar = 0;
+	int mseconds = 0; /*< milliseconds */
+	int fd;
+	float prog = 0.;
+	struct progress_status *ps = th_arg;
+	/* argument of command progress of which is monitored */
+	/*1,2,0 are descriptors of stdout, err and in respectively*/
+	int running_tty = isatty(1) && isatty(2) && isatty(0);
+	struct sigaction new_action, old_action;
+
+	fd = open(CTRL_DEV_PATH, 0);
+	if (fd < 0) {
+		cas_printf(LOG_ERR, "Device " CTRL_DEV_PATH " not found\n");
+		return NULL; /* FAILURE; */
+	}
+
+	device_id = ps->cache_id;
+
+	sigaction(SIGINT, NULL, &old_action);
+	if (old_action.sa_handler != SIG_IGN) {
+		new_action.sa_handler = sig_handler_interrupt_flushing;
+		sigemptyset(&new_action.sa_mask);
+		new_action.sa_flags = 0;
+		sigaction(SIGINT, &new_action, NULL);
+	}
+
+	sched_yield();
+
+	while (1) {
+		struct pollfd pfd;
+		struct timespec ts;
+		sigset_t sigmask;
+		int ppoll_res;
+		sigemptyset(&sigmask);
+		ts.tv_sec = 1;
+		ts.tv_nsec = 0;
+		pfd.fd = fdspipe[0];
+		pfd.events = POLLIN | POLLRDHUP;
+		ppoll_res =  ppoll(&pfd, 1, &ts, &sigmask);
+		if (ppoll_res < 0) {
+			if (ENOMEM == errno) {
+				sleep(1);
+				/* ppoll call failed due to insufficient memory */
+			} else if (EINTR == errno) {
+				interrupted = 1;
+			} else { /* other error conditions are EFAULT or EINVAL
+				  * cannot happen in realistic conditions, 
+				  * and are likely to refer to OS errors, which
+				  * cannot possibly be handled. Perform abortion.
+				  */
+				cas_printf(LOG_ERR, "Failed ppoll");
+				abort();
+			}
+		}
+		mseconds += 1000;
+
+		if (interrupted) {
+			/* if flushing is interrupted by signal, don't proceed with displaying
+			 * any kind of progress bar. if bar was previously printed,
+			 * print indicator instead */
+			if (do_print_progress_bar) {
+				print_progress_indicator(100, ps);
+			}
+			break;
+		} else if (finished) {
+			if (do_print_progress_bar) {
+				print_progress_bar_or_indicator(100., ps);
+			}
+			break;
+		}
+
+		if (ps->core_id == OCF_CORE_ID_INVALID) {
+			get_cache_flush_progress(fd, ps->cache_id, &prog);
+		} else {
+			get_core_flush_progress(fd, ps->cache_id, ps->core_id, &prog);
+		}
+
+		/* it is normal that ioctl to get statistics
+		 * fails from time to time. Most common cases
+		 * of it are:
+		 * - during --start-cache when cache isn't added
+		 * - during --stopping-cache, when progress is
+		 *   supposed to read "100%", but cache is actually
+		 *   already removed and its stopping progress can't
+		 *   be queried at all.
+		 */
+		if (mseconds >= show_progressbar_after * 1000
+		    && running_tty && prog < 50) {
+			do_print_progress_bar = 1;
+		}
+
+		if (do_print_progress_bar) {
+			print_progress_bar_or_indicator(prog, ps);
+		}
+	}
+	close(fdspipe[0]);
+
+	close(fd);
+
+	/* if progressbar was displayed at least one, clear line */
+	if (do_print_progress_bar) {
+		printf("%c%c" VT100_CLEARLINE, CARRIAGE_RETURN, ESCAPE);
+	}
+	fflush(stdout);
+	return NULL;
+}
+
+/*
+ * Run ioctl in a way that displays progressbar (if flushing operation takes longer)
+ * Catch SIGINT signal.
+ * @param friendly_name name of management operation that shall
+ * be displayed in command prompt
+ */
+int run_ioctl_interruptible(int fd, int command, void *cmd,
+		char *friendly_name, int cache_id, int core_id)
+{
+	pthread_t thread;
+	int ioctl_res;
+	struct progress_status ps;
+	sigset_t sigset;
+
+	init_progress_bar(&ps);
+	ps.friendly_name = friendly_name;
+	ps.cache_id = cache_id;
+	ps.core_id = core_id;
+	if (pipe(fdspipe)) {
+		cas_printf(LOG_ERR,"Failed to allocate pipes.\n");
+		return -1;
+	}
+	interrupted = 0;
+
+	sigemptyset(&sigset);
+	sigaddset(&sigset, SIGINT);
+	pthread_sigmask(SIG_BLOCK, &sigset, NULL);
+
+	pthread_create(&thread, 0, print_command_progress, &ps);
+	ioctl_res = run_ioctl(fd, command, cmd);
+	if (!interrupted) {
+		close(fdspipe[1]);
+	}
+	finished = 1;
+
+	pthread_join(thread, 0);
+
+	return ioctl_res;
+}
+
+/*
+ * @brief ioctl wrapper that retries ioctl attempts within one second timeouts
+ * @param[in] fd as for IOCTL(2)
+ * @param[in] command as for IOCTL(2)
+ * @param[inout] cmd_info as for IOCTL(2)
+ */
+int run_ioctl(int fd, int command, void *cmd)
+{
+	int i, ret;
+	struct timespec timeout = {
+			.tv_sec = 1,
+			.tv_nsec = 0,
+	};
+
+	for (i = 0; i < IOCTL_RETRIES; i++) {
+		ret = ioctl(fd, command, cmd);
+
+		if (ret < 0) {
+			if (interrupted) {
+				return -EINTR;
+			} if (EINTR == errno) {
+				return -EINTR;
+			} else if (EBUSY == errno) {
+				int nret = nanosleep(&timeout, NULL);
+				if (nret) {
+					return -EINTR;
+				}
+			} else {
+				return ret;
+			}
+		} else {
+			break;
+		}
+	}
+
+	return ret;
+}
+
+
+int create_pipe_pair(FILE **intermediate_file)
+{
+	/* 1 is writing end, 0 is reading end of a pipe */
+	int pipefd[2];
+
+	if (pipe(pipefd)) {
+		cas_printf(LOG_ERR,"Failed to create unidirectional pipe.\n");
+		return FAILURE;
+	}
+
+	intermediate_file[0] = fdopen(pipefd[0], "r");
+	if (!intermediate_file[0]) {
+		cas_printf(LOG_ERR,"Failed to open reading end of an unidirectional pipe.\n");
+		close(pipefd[0]);
+		close(pipefd[1]);
+		return FAILURE;
+	}
+	intermediate_file[1] = fdopen(pipefd[1], "w");
+	if (!intermediate_file[1]) {
+		cas_printf(LOG_ERR,"Failed to open reading end of an unidirectional pipe.\n");
+		fclose(intermediate_file[0]);
+		close(pipefd[1]);
+		return FAILURE;
+	}
+	return SUCCESS;
+}

casadm/cas_lib_utils.h

@@ -0,0 +1,68 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __CAS_LIB_UTILS_H__
+#define __CAS_LIB_UTILS_H__
+
+struct progress_status {
+	uint64_t
+	dirty_clines_initial;	/*!< amount of dirty clines when command is initiated */
+
+	uint64_t
+	dirty_clines_curr;		/*!< amount of dirty clines at current progress level */
+
+	int progress_accumulated;	/*!< this is to ensure that progressbar is always
+					 *!< from 0 to 100% and progress indicated by it
+					 *!< never actually drops. */
+	int time_started;		/*!< time when particular long running
+					 *!< operation was started */
+	char *friendly_name;		/*!< name of management operation that shall
+					 *!< be displayed in command prompt */
+	int cache_id;			/*!< cache id */
+	int core_id;			/*!< core id */
+};
+
+
+void init_progress_bar(struct progress_status *ps);
+void print_progress_bar_or_indicator(float prog, struct progress_status *ps);
+int run_ioctl(int fd, int command, void *cmd);
+int run_ioctl_interruptible(int fd, int command, void *cmd,
+		char *friendly_name, int cache_id, int core_id);
+int open_ctrl_device();
+int was_ioctl_interrupted();
+void set_default_sig_handler();
+void set_safe_lib_constraint_handler();
+
+
+/**
+ * function creates pair files representing an unnamed pipe.
+ * this is highlevel counterpart to pipe syscall.
+ *
+ * null is returned upon failure;
+ *
+ * FILE *pipes[2] is returned upon success.
+ * 1 is writing end, 0 is reading end of a pipe
+ */
+int create_pipe_pair(FILE **);
+
+/**
+ * Check if string is empty
+ *
+ * @param str - reference to the string
+ * @retval 1 string is empty
+ * @retval 0 string is not empty
+ */
+static inline int strempty(const char *str)
+{
+	if (NULL == str) {
+		return 1;
+	} else if ('\0' == str[0]) {
+		return 1;
+	} else {
+		return 0;
+	}
+}
+
+#endif

casadm/csvparse.c

@@ -0,0 +1,483 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <stdbool.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdint.h>
+#include "csvparse.h"
+#include "cas_lib_utils.h"
+#include "safeclib/safe_lib.h"
+#include <cas_ioctl_codes.h>
+
+#define SUCCESS 0
+#define FAILURE 1
+
+struct CSVFILE_t {
+	FILE *f; /**< underlying byte stream*/
+	int num_columns; /**< number of columns in recently read
+			    line of CSV file */
+	int alloc_column_ptrs; /**< number of pointers to columns
+				  that can be fit in columns buffer */
+	char **columns;	/**< buffer contains exactly one pointer to each
+			   column of a csv file */
+	char *buffer; /**< buffer to which recently read line of a csv file
+			 is stored */
+	int buffer_size; /**< size of a buffer */
+
+	char csv_comment; /**< character markng whole line comment. if set to null,
+			     comments in file are not respected */
+	char csv_separator; /**< csv separator (by default coma, but in some csv formats
+			       it is something different */
+};
+
+#define DEF_ALLOC_COL_PTRS 2
+#define DEF_CSV_FILE_BUFFER_SIZE 20
+
+/* return error when input dataset size exceeds some common sense limitations */
+#define MAX_NUM_COLUMNS 100
+#define MAX_LINE_LENGTH 8192
+
+CSVFILE *csv_open(const char *path, const char *mode)
+{
+	CSVFILE *csv;
+
+	if (!path || !mode) {
+		return NULL;
+	}
+
+	/* open underlying file as a character stream */
+	FILE *f = fopen(path, mode);
+	if (!f) {
+		return NULL;
+	}
+
+	csv = csv_fopen(f);
+	if (NULL == csv) {
+		fclose(f);
+		return NULL;
+	}
+
+	return csv;
+}
+
+CSVFILE *csv_fopen(FILE *f)
+{
+	CSVFILE *cf = malloc(sizeof(*cf));
+	if (!cf) {
+		return NULL;
+	}
+	/* allocate storage for columns of CSV file */
+	cf->num_columns = 0;
+	cf->alloc_column_ptrs = DEF_ALLOC_COL_PTRS;
+
+	cf->columns = malloc(cf->alloc_column_ptrs * sizeof(char *));
+	if (!cf->columns) {
+		free(cf);
+		return NULL;
+	}
+
+	/* allocate storage for line of CSV file */
+	cf->buffer_size = DEF_CSV_FILE_BUFFER_SIZE;
+	cf->buffer = malloc(cf->buffer_size);
+	if (!cf->buffer) {
+		free(cf->columns);
+		free(cf);
+		return NULL;
+	}
+
+	/* assign underlying file as a character stream */
+	cf->f = f;
+
+	cf->csv_separator = ',';
+	cf->csv_comment = 0;
+
+	return cf;
+}
+
+void csv_close(CSVFILE *cf)
+{
+	fclose(cf->f);
+	csv_close_nu(cf);
+}
+
+void csv_close_nu(CSVFILE *cf)
+{
+	free(cf->columns);
+	free(cf->buffer);
+	memset(cf, 0, sizeof(*cf));
+	free(cf);
+}
+
+/**
+ * internal helper function for the library.
+ */
+static int ensure_items_array(CSVFILE *cf)
+{
+	if (cf->num_columns > MAX_NUM_COLUMNS) {
+		return FAILURE;
+	} else if (cf->num_columns < cf->alloc_column_ptrs) {
+		return SUCCESS;
+	} else {
+		char **tmp;
+		cf->alloc_column_ptrs = cf->num_columns * 2;
+		tmp =
+		    realloc(cf->columns,
+			    cf->alloc_column_ptrs * sizeof(char *));
+		if (!tmp) {
+			return FAILURE;
+		} else {
+			cf->columns = tmp;
+			return SUCCESS;
+		}
+	}
+}
+
+/**
+ * Function checks if CSV file is a valid one.
+ */
+bool csv_is_valid(CSVFILE *cf)
+{
+	if (!cf) {
+		return false;
+	} else if (!cf->f) {
+		return false;
+	} else if (!cf->columns) {
+		return false;
+	} else if (!cf->buffer) {
+		return false;
+	} else {
+		return true;
+	}
+}
+
+static int csv_read_line(CSVFILE *cf)
+{
+	char *line;
+	char *c;
+	int i, len;
+	int already_read = 0;
+	/* fgets reads at most buffer_size-1 characters and always places NULL
+	 * at the end. */
+
+	while (true) {
+		line = fgets(cf->buffer + already_read,
+			     cf->buffer_size - already_read, cf->f);
+		if (!line) {
+			return FAILURE;
+		}
+		line = cf->buffer;
+		/* check that entire line was read; if failed, expand buffer and retry
+		 * or (in case of eof) be happy with what we have */
+		c = line;
+		i = 0;
+
+		while (*c && *c != '\n') {
+			c++;
+			i++;
+		}
+		len = i;
+		if (len > MAX_LINE_LENGTH) {
+			return FAILURE;
+		}
+
+		/* buffer ends with 0 while it is not an EOF - sign that we have NOT read entire line
+		 * - try to expand buffer*/
+		if (!*c && !feof(cf->f)) {
+			already_read = cf->buffer_size - 1;
+			cf->buffer_size *= 2;
+			char *tmp = realloc(cf->buffer, cf->buffer_size);
+
+			if (tmp) {
+				cf->buffer = tmp;
+				continue;
+			} else {
+				return FAILURE;
+			}
+		}
+
+		if (cf->buffer[i] == '\n') {
+			cf->buffer[i] = 0;
+		}
+		break;
+	}
+	return SUCCESS;
+}
+
+int csv_read(CSVFILE *cf)
+{
+	int i, j, spaces_at_end;
+	bool parsing_token = false;	/* if false, "cursor" is over whitespace, otherwise
+					 * it is over part of token */
+
+	bool quotation = false;
+	if (!csv_is_valid(cf)) {
+		return FAILURE;
+	}
+	if (csv_read_line(cf)) {
+		return FAILURE;
+	}
+
+	i = 0;
+	cf->num_columns = 0;
+	cf->columns[0] = 0;
+	spaces_at_end = 0;
+
+	while (cf->buffer[i]) {
+		if (quotation) {	/* handling text within quotation marks -
+					 * ignore commas in this kind of text and don't strip spaces */
+			if (cf->buffer[i] == '"' && cf->buffer[i + 1] == '"') {
+				/* double quotation mark is considered escaped quotation by
+				 * Micros~1 Excel. We should do likewise */
+				if (!parsing_token) {	/* start of an cf->buffer */
+					cf->columns[cf->num_columns] =
+					    &cf->buffer[i];
+					parsing_token = true;
+				}
+				++i;
+				memmove_s(cf->columns[cf->num_columns] + 1,
+					cf->buffer_size - (cf->columns[cf->num_columns] - cf->buffer),
+					cf->columns[cf->num_columns],
+					&cf->buffer[i] - cf->columns[cf->num_columns]);
+				cf->columns[cf->num_columns]++;
+			} else if (cf->buffer[i] == '"') {
+				quotation = false;
+				parsing_token = false;
+				cf->buffer[i] = 0;
+			} else if (!parsing_token) {	/* start of an cf->buffer */
+				cf->columns[cf->num_columns] = &cf->buffer[i];
+				parsing_token = true;
+			}
+		} else {	/* handling text outside quotation mark */
+			if (cf->buffer[i] == cf->csv_separator) {
+				(cf->num_columns)++;
+				if (ensure_items_array(cf)) {
+					return FAILURE;
+				}
+				cf->columns[cf->num_columns] = 0;
+				parsing_token = false;
+				cf->buffer[i] = 0;
+				for (j = i - spaces_at_end; j != i; ++j) {
+					cf->buffer[j] = 0;
+				}
+
+			} else if (cf->buffer[i] == '"') {
+				quotation = true;
+				spaces_at_end = 0;
+			} else if (cf->csv_comment
+				   && cf->buffer[i] == cf->csv_comment) {
+				cf->buffer[i] = 0;
+				break;
+			} else if (!isspace(cf->buffer[i])) {
+				if (!parsing_token) {	/* start of an cf->buffer */
+					if (!cf->columns[cf->num_columns]) {
+						cf->columns[cf->num_columns] =
+						    &cf->buffer[i];
+					}
+					parsing_token = true;
+				}
+				spaces_at_end = 0;
+			} else {	/* no token.; clear spaces, possibly */
+				parsing_token = false;
+				spaces_at_end++;
+			}
+		}
+		++i;
+	}
+
+	for (j = i - spaces_at_end; j != i; ++j) {
+		cf->buffer[j] = 0;
+	}
+
+	/*always consider empty line to have exactly one empty column */
+	cf->num_columns++;
+
+	for (j = 0; j != cf->num_columns; ++j) {
+		/* if no columns were detected during parse, make sure that columns[x]
+		 * points to an empty string and not into (NULL) */
+		if (!cf->columns[j]) {	/* so that empty columns will return empty string and
+					   not a null-pointer */
+			cf->columns[j] = &cf->buffer[i];
+		}
+	}
+
+	return SUCCESS;
+}
+
+unsigned int csv_count_cols(CSVFILE *line)
+{
+	return line->num_columns;
+}
+
+int csv_empty_line(CSVFILE *cf)
+{
+	if (!csv_is_valid(cf)) {
+		return FAILURE;
+	}
+	if (0 == csv_count_cols(cf)) {
+		return 1;
+	} else if (1 == csv_count_cols(cf)) {
+		const char *value = csv_get_col(cf, 0);
+		if (strempty(value)) {
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+char *csv_get_col(CSVFILE *cf, int coln)
+{
+	if (!csv_is_valid(cf)) {
+		return NULL;
+	}
+	return cf->columns[coln];
+}
+
+char **csv_get_col_ptr(CSVFILE *cf)
+{
+	return cf->columns;
+}
+
+void csv_seek_beg(CSVFILE *cf)
+{
+	fseek(cf->f, 0, SEEK_SET);
+}
+
+int csv_feof(CSVFILE *cf)
+{
+	return feof(cf->f);
+}
+
+int csv_print(const char *path)
+{
+	int i, j, k; /* column, line, row, within column */
+	int num_col_lengths = DEF_ALLOC_COL_PTRS;
+	static const int def_col_len = 5;
+	int actual_num_cols = 1;
+
+	CSVFILE *cf = csv_open(path, "r");
+	if (!cf) {
+		return FAILURE;
+	}
+
+	int *col_lengths = malloc(num_col_lengths * sizeof(int));
+	if (!col_lengths) {
+		csv_close(cf);
+		return FAILURE;
+	}
+
+	for (i = 0; i != num_col_lengths; ++i) {
+		col_lengths[i] = def_col_len;
+	}
+
+	/*calculate length of each column */
+	i = j = 0;
+	while (!csv_read(cf)) {
+		int num_cols = csv_count_cols(cf);
+		if (num_cols > actual_num_cols) {
+			actual_num_cols = num_cols;
+		}
+
+		if (num_cols > num_col_lengths) {
+			/* CSV file happens to have more columns, than we have allocated
+			 * memory for */
+			int *tmp =
+			    realloc(col_lengths, num_cols * 2 * sizeof(int));
+			if (!tmp) {
+				free(col_lengths);
+				csv_close(cf);
+				return FAILURE;
+			}
+			/* reallocation successful */
+			col_lengths = tmp;
+			for (i = num_col_lengths; i != num_cols * 2; ++i) {
+				col_lengths[i] = def_col_len;
+			}
+			num_col_lengths = num_cols * 2;
+		}
+
+		for (i = 0; i != csv_count_cols(cf); ++i) {
+			int len = strnlen(csv_get_col(cf, i), MAX_STR_LEN);
+			if (col_lengths[i] < len) {
+				col_lengths[i] = len;
+			}
+		}
+		++j;
+	}
+
+	/*actually format pretty table */
+	csv_seek_beg(cf);
+	printf("     | ");
+
+	for (i = 0; i != actual_num_cols; ++i) {
+		int before = col_lengths[i] / 2;
+
+		for (k = 0; k != before; ++k) {
+			putchar(' ');
+		}
+		putchar(i + 'A');
+		for (k = 0; k != col_lengths[i] - before - 1; ++k) {
+			putchar(' ');
+		}
+		printf(" | ");
+	}
+	printf("\n-----|-");
+
+	for (i = 0; i != actual_num_cols; ++i) {
+		for (k = 0; k != col_lengths[i]; ++k) {
+			putchar('-');
+		}
+		printf("-|-");
+	}
+	printf("\n");
+
+	j = 1;
+	while (!csv_read(cf)) {
+		printf("%4d | ", j);
+		int num_cols = csv_count_cols(cf);
+		for (i = 0; i != actual_num_cols; ++i) {
+			if (i < num_cols) {
+				char *c = csv_get_col(cf, i);
+				for (k = 0; c[k]; k++) {
+					putchar(c[k]);
+				}
+			} else {
+				k = 0;
+			}
+			for (; k != col_lengths[i]; ++k) {
+				putchar(' ');
+			}
+			printf(" | ");
+		}
+		++j;
+		putchar('\n');
+	}
+
+	free(col_lengths);
+	csv_close(cf);
+	return SUCCESS;
+}
+
+#ifdef __CSV_SAMPLE__
+/**
+ * usage example for csvparse library
+ * gcc -ggdb csvparse.c -I../common -D__CSV_SAMPLE__ -ocsvsample
+ */
+int main()
+{
+	puts("Validated configurations to run Intel CAS");
+	csv_print("../../tools/build_installer/utils/validated_configurations.csv");
+	putchar('\n');
+
+	puts("IO Classes for Intel CAS");
+	csv_print("../../tools/build_installer/utils/default_ioclasses.csv");
+	putchar('\n');
+
+}
+#endif

casadm/csvparse.h

@@ -0,0 +1,103 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __CSVPARSE_H_
+#define __CSVPARSE_H_
+#include <stdio.h>
+/**
+ * @file
+ * @brief Generic CSV input/output library
+ *
+ */
+
+/**
+ * data structure holding info about CSV file being read.
+ * @note there is no need to directly manipulate any field of this structure.
+ * Csvparse library handles everything.
+ */
+struct CSVFILE_t;
+
+/**
+ * This is to mimic semantics of stdio FILE*, which also is a typedef for a structure.
+ */
+typedef struct CSVFILE_t CSVFILE;
+
+
+CSVFILE *csv_open(const char *path, const char *mode);
+
+CSVFILE *csv_fopen(FILE *f);
+CSVFILE *csv_fdopen(int fd);
+
+
+/**
+ * close csv file. this is a direct counterpart to csv_open
+ */
+void csv_close(CSVFILE *cf);
+
+/**
+ * close a csv without closing underlying plain fle object (so that all
+ * structures allocated by csv parsere are freed but syscall close(2) isn't issued
+ * - this is designed as counterpart to csv_fopen or csv_fdopen
+ */
+void csv_close_nu(CSVFILE *cf);
+
+/**
+ * @param cf csv file handle to read
+ *
+ * Read line from CSV file; return 0 if line was successfully read
+ * return nonzero if eof or error was observed
+ * Error may mean end of file or i.e. memory allocation error for temporary buffers
+ */
+int csv_read(CSVFILE *cf);
+
+/**
+ * @return true if end of file occured.
+ */
+int csv_feof(CSVFILE *cf);
+
+/**
+ * return number of columns
+ * @return # of columns in a csv file
+ */
+unsigned int csv_count_cols(CSVFILE *line);
+
+/**
+ * return given column of recently read row
+ * @param coln - column number
+ * @return pointer to field of csv file as a string; no range checking is performed,
+ * so if coln given exceeds actual number of columns defined in this row, error will occur
+ */
+char* csv_get_col(CSVFILE *cf, int coln);
+
+/**
+ * return entire row as a set of pointers to individual columns (unchecked function
+ * returns internal representation. state is guaranteed to be correct only when
+ * csv_read returned success;
+ */
+char** csv_get_col_ptr(CSVFILE *cf);
+
+/**
+ * Check if current line is empty
+ *
+ * @param cf - CVS file instance
+ * @retval 1 - empty line
+ * @retval 0 - no empty line
+ */
+int csv_empty_line(CSVFILE *cf);
+
+/**
+ * Seek to the begining of CSV file; this allows reading file again, from the begining
+ */
+void csv_seek_beg(CSVFILE *cf);
+
+/**
+ * This function prints CVS file in human readable format to the STD output
+ *
+ * @param path - Path to the CVS file
+ * @return Operation status. 0 - Success, otherwise error during printing
+ */
+int csv_print(const char *path);
+
+#endif

casadm/extended_err_msg.c

@@ -0,0 +1,244 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#include <stdint.h>
+#include <stddef.h>
+#include <string.h>
+#include <stdlib.h>
+#include "safeclib/safe_lib.h"
+#include <cas_ioctl_codes.h>
+#include "extended_err_msg.h"
+
+struct {
+	int cas_error;
+	const char *msg;
+} static cas_error_code_map[] = {
+
+	/* IOC error mappings*/
+	{
+		OCF_ERR_INVAL,
+		"Invalid input parameter"
+	},
+	{
+		OCF_ERR_INVAL_VOLUME_TYPE,
+		"Invalid volume type"
+	},
+	{
+		OCF_ERR_INTR,
+		"Interrupted by a signal"
+	},
+	{
+		OCF_ERR_UNKNOWN,
+		"Unknown error occurred"
+	},
+	{
+		OCF_ERR_TOO_MANY_CACHES,
+		"Too many caches"
+	},
+	{
+		OCF_ERR_NO_MEM,
+		"Not enough memory to allocate a new cache device"
+	},
+	{
+		OCF_ERR_NO_FREE_RAM,
+		"Not enough free RAM for cache metadata to start cache"
+	},
+	{
+		OCF_ERR_START_CACHE_FAIL,
+		"Failed to insert cache"
+	},
+	{
+		OCF_ERR_CACHE_IN_USE,
+		"At least one cas device is still in use"
+	},
+	{
+		OCF_ERR_CACHE_NOT_EXIST,
+		"Cache ID does not exist"
+	},
+	{
+		OCF_ERR_CACHE_EXIST,
+		"Cache ID already exists"
+	},
+	{
+		OCF_ERR_TOO_MANY_CORES,
+		"Too many core devices in cache"
+	},
+	{
+		OCF_ERR_CORE_NOT_AVAIL,
+		"Core device not available"
+	},
+	{
+		OCF_ERR_CACHE_NOT_AVAIL,
+		"Cache device not available"
+	},
+	{
+		OCF_ERR_IO_CLASS_NOT_EXIST,
+		"No such IO class ID in the cache"
+	},
+	{
+		OCF_ERR_WRITE_CACHE,
+		"Error while writing to cache device"
+	},
+	{
+		OCF_ERR_WRITE_CORE,
+		"Error while writing to core device"
+	},
+	{
+		OCF_ERR_DIRTY_SHUTDOWN,
+		"Please use --load option to restore previous cache state "
+		"(Warning: data corruption may happen)\nOr initialize your "
+		"cache using --force option. Warning: All dirty data will be "
+		"lost!\n"
+	},
+	{
+		OCF_ERR_DIRTY_EXISTS,
+		"Cache closed with dirty data.\nPlease start cache using "
+		"--load or --force option.\n"
+	},
+	{
+		OCF_ERR_FLUSHING_INTERRUPTED,
+		"Flushing of core interrupted"
+	},
+	{
+		OCF_ERR_CANNOT_ADD_CORE_TO_POOL,
+		"Error occurred during adding core device to core pool"
+	},
+	{
+		OCF_ERR_CACHE_IN_INCOMPLETE_STATE,
+		"Cache is in incomplete state - at least one core is inactive"
+	},
+	{
+		OCF_ERR_CORE_IN_INACTIVE_STATE,
+		"Core device is in inactive state"
+	},
+	{
+		OCF_ERR_NOT_OPEN_EXC,
+		"Cannot open device exclusively"
+	},
+
+	/* CAS kernel error mappings*/
+	{
+		KCAS_ERR_ROOT,
+		"Must be root"
+	},
+	{
+		KCAS_ERR_SYSTEM,
+		"System Error"
+	},
+	{
+		KCAS_ERR_BAD_RANGE,
+		"Range parameters are invalid"
+	},
+	{
+		KCAS_ERR_DEV_SPACE,
+		"Illegal range, out of device space"
+	},
+	{
+		KCAS_ERR_INV_IOCTL,
+		"Invalid ioctl"
+	},
+	{
+		KCAS_ERR_DEV_PENDING,
+		"Device opens or mount are pending to this cache"
+	},
+	{
+		KCAS_ERR_DIRTY_EXISTS_NVME,
+		"Cache device contains dirty data.\nIf you want to format it, "
+		"please use --force option.\nWarning: all data will be lost!"
+	},
+	{
+		KCAS_ERR_FILE_EXISTS,
+		"Could not create exported object because file in /dev "
+		"directory exists"
+	},
+	{
+		KCAS_ERR_IN_UPGRADE,
+		"Operation not allowed. CAS is in upgrade state"
+	},
+	{
+		KCAS_ERR_UNALIGNED,
+		"Cache device logical sector size is greater than core device "
+		"logical sector size.\nConsider changing logical sector size "
+		"on current cache device \nor try other device with the same "
+		"logical sector size as core device."
+	},
+	{
+		KCAS_ERR_NO_STORED_CONF,
+		"Internal kernel module error"	},
+	{
+		KCAS_ERR_ROLLBACK,
+		"Cannot restore previous configuration"
+	},
+	{
+		KCAS_ERR_NOT_NVME,
+		"Given block device is not NVMe"
+	},
+	{
+		KCAS_ERR_FORMAT_FAILED,
+		"Failed to format NVMe device"
+	},
+	{
+		KCAS_ERR_NVME_BAD_FORMAT,
+		"NVMe is formatted to unsupported format"
+	},
+	{
+		KCAS_ERR_CONTAINS_PART,
+		"Device contains partitions.\nIf you want to continue, "
+		"please use --force option.\nWarning: all data will be lost!"
+	},
+	{
+		KCAS_ERR_A_PART,
+		"Formatting of partition is unsupported."
+	},
+	{
+		KCAS_ERR_REMOVED_DIRTY,
+		"Flush error occured. Core has been set to detached state.\n"
+		"Warning: Core device may contain inconsistent data.\n"
+		"To access your data please add core back to the cache."
+	},
+	{
+		KCAS_ERR_STOPPED_DIRTY,
+		"Cache has been stopped with flushing error.\n"
+		"Warning: Core devices may contain inconsistent data.\n"
+		"To access your data, please start cache with --load option."
+	},
+	{
+		KCAS_ERR_NO_CACHE_ATTACHED,
+		"Operation not allowed. Caching device is not attached."
+	},
+	{
+		KCAS_ERR_CORE_POOL_NOT_EMPTY,
+		"Operation not allowed. Core pool is not empty."
+	},
+	{
+		KCAS_ERR_CLS_RULE_UNKNOWN_CONDITION,
+		"Unexpected classification rule condition"
+	},
+	{
+		KCAS_ERR_CLS_RULE_INVALID_SYNTAX,
+		"Invalid classification rule syntax"
+	},
+
+
+};
+
+const char *cas_strerr(int cas_error_code)
+{
+	int i;
+	int count = sizeof(cas_error_code_map) / sizeof(cas_error_code_map[0]);
+
+	if (cas_error_code == 0)
+		return NULL; /* No Error */
+
+	cas_error_code = abs(cas_error_code);
+
+	for (i = 0; i < count; i++) {
+		if (cas_error_code_map[i].cas_error == cas_error_code)
+			return cas_error_code_map[i].msg;
+	}
+
+	return strerror(cas_error_code);
+}
+

casadm/extended_err_msg.h

@@ -0,0 +1,6 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+const char *cas_strerr(int cas_error_code);

casadm/intvector.c

@@ -0,0 +1,110 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#include <stdlib.h>
+#include <string.h>
+#include "intvector.h"
+
+#define DEFAULT_CAPACITY 11
+
+
+struct intvector *vector_alloc()
+{
+	struct intvector *v = malloc(sizeof(struct intvector));
+	if (!v) {
+		return 0;
+	}
+	if (vector_alloc_placement(v)) {
+		free(v);
+		return 0;
+	}
+	return v;
+}
+
+int vector_alloc_placement(struct intvector *v)
+{
+	v->content = malloc(sizeof(int) * DEFAULT_CAPACITY);
+	if (!v->content) {
+		return 1;
+	}
+	v->size = 0;
+	v->capacity = DEFAULT_CAPACITY;
+	return 0;
+}
+
+int vector_reserve(struct intvector *v, int s)
+{
+	if (s < DEFAULT_CAPACITY || s < v->capacity) {
+		return 0;
+	}
+
+	void *tmp = realloc(v->content, s*sizeof(int));
+	if (!tmp) {
+		return 1;
+	}
+
+	v->content = tmp;
+	v->capacity = s;
+	return 0;
+}
+void vector_free_placement(struct intvector *v)
+{
+	free(v->content);
+}
+
+void vector_free(struct intvector *v)
+{
+	vector_free_placement(v);
+	free(v);
+}
+
+int vector_get(struct intvector *v, int i)
+{
+	return v->content[i];
+}
+
+int vector_set(struct intvector *v, int i, int x)
+{
+	v->content[i]=x;
+	return 0;
+}
+
+int vector_zero(struct intvector *v)
+{
+	memset(v->content, 0, sizeof(int) * v->size);
+	return 0;
+}
+
+int vector_push_back(struct intvector *v, int x)
+{
+	if (vector_capacity(v) == vector_size(v)) {
+		if (vector_reserve(v, v->size*2)) {
+			return 1;
+		}
+	}
+
+	vector_set(v, v->size, x);
+	v->size++;
+	return 0;
+}
+
+int vector_size(struct intvector *v)
+{
+	return v->size;
+}
+
+int vector_capacity(struct intvector *v)
+{
+	return v->capacity;
+}
+
+int vector_resize(struct intvector *v, int s)
+{
+	if (vector_reserve(v, s)) {
+		return 1;
+	}
+	v->size = s;
+	return 0;
+}

casadm/intvector.h

@@ -0,0 +1,40 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __INTVECTOR_H
+#define __INTVECTOR_H
+struct intvector
+{
+	int capacity;
+	int size;
+	int *content;
+};
+/* names of these functions (mostly) correspond to std::vector */
+
+struct intvector *vector_alloc();
+
+int vector_alloc_placement(struct intvector *v);
+
+int vector_reserve(struct intvector *v, int s);
+
+void vector_free(struct intvector *v);
+
+void vector_free_placement(struct intvector *v);
+
+int vector_get(struct intvector *v, int i);
+
+int vector_set(struct intvector *v, int i, int x);
+
+int vector_zero(struct intvector *v);
+
+int vector_push_back(struct intvector *v, int x);
+
+int vector_size(struct intvector *v);
+
+int vector_capacity(struct intvector *v);
+
+int vector_resize(struct intvector *v, int s);
+
+#endif

casadm/ocf_env.h

@@ -0,0 +1,27 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef OCF_ENV_H_
+#define OCF_ENV_H_
+
+#include <string.h>
+#include <stdlib.h>
+#include "safeclib/safe_lib.h"
+
+#define min(x, y)  ({ x < y ? x : y; })
+
+#define ENV_BUG_ON(cond) ({ if (cond) exit(1); })
+
+/* *** STRING OPERATIONS *** */
+
+#define env_memset memset_s
+#define env_memcpy memcpy_s
+#define env_memcmp memcmp_s
+
+#define env_strnlen strnlen_s
+#define env_strncmp strncmp
+#define env_strncpy strncpy_s
+
+#endif /* OCF_ENV_H_ */

casadm/ocf_env_headers.h

@@ -0,0 +1,22 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __OCF_ENV_HEADERS_H__
+#define __OCF_ENV_HEADERS_H__
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stddef.h>
+
+/* TODO: Move prefix printing to context logger. */
+#define OCF_LOGO "CAS"
+#define OCF_PREFIX_SHORT "[" OCF_LOGO "] "
+#define OCF_PREFIX_LONG "Cache Acceleration Software Linux"
+
+#define OCF_VERSION_MAIN CAS_VERSION_MAIN
+#define OCF_VERSION_MAJOR CAS_VERSION_MAJOR
+#define OCF_VERSION_MINOR CAS_VERSION_MINOR
+
+#endif /* __OCF_ENV_HEADERS_H__ */

casadm/psort.c

@@ -0,0 +1,198 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+#include <unistd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <sys/timeb.h>
+#include <pthread.h>
+#include <string.h>
+#include <stdbool.h>
+#include "safeclib/safe_mem_lib.h"
+#include "psort.h"
+
+/**
+ * internal state of parallel sort algorithm (entire task for main thread,
+ * subtask for children).
+ */
+struct psort_state
+{
+	void *defbase; /*!< base of master buffer sort
+			 * - needed to compute offsets*/
+	int spawn_threads;
+	void *base; /*!< base of subtask */
+	size_t nmemb; /*!< number of members in subtask */
+	size_t size; /*!< of each member */
+	compar_t compar;
+	int result; /*!< partial result */
+	void *tmpbuf; /*!< temporary buffer for purpose of merge algorithm */
+};
+
+void memcpy_replacement(void *dst, void *src, size_t size)
+{
+	/**
+	 * Avoid this if possible. memcpy_s leads to crappy performance
+	 * defeating purpose of entire optimized sort.
+	 */
+	memcpy_s(dst, size, src, size);
+}
+
+/**
+ * merge algorithm has O(N) spatial complexity and O(N) time complexity
+ */
+void merge_ranges(void *base, size_t nmemb1, size_t nmemb2, size_t size,
+		  compar_t compar, void *tmpbuf)
+{
+	void *target_buf = tmpbuf;
+	int i1, i2;
+
+	for (i1 = i2 = 0; i1 < nmemb1 || i2 < nmemb2;) {
+		bool lil; /* lil means "left is less" */
+		if (i1 == nmemb1) {
+			lil = false;
+		} else if (i2 ==nmemb2) {
+			lil = true;
+		} else if (compar(base + i1 * size,
+				  base + (nmemb1 +i2) * size) < 0) {
+			lil = true;
+		} else {
+			lil = false;
+
+		}
+		if (lil) {
+			memcpy_replacement(target_buf + (i1 + i2) * size,
+			       base + i1 * size,
+			       size);
+			i1++;
+		} else {
+			memcpy_replacement(target_buf + (i1 + i2) * size,
+			       base + (nmemb1 + i2) * size,
+			       size);
+			i2++;
+		}
+	}
+	memcpy_replacement(base, target_buf, (nmemb1 + nmemb2) * size);
+}
+
+/**
+ * Execute quicksort on part or entirety of subrange. If subranges taken into
+ * account, than merge partial sort results.
+ *
+ * Complexity          |      time         |    spatial
+ * --------------------+-------------------+-----------
+ * Quick Sort          |  O(n*lg(n)/ncpu)  |    O(1)
+ * Merging             |       O(n)        |    O(N)
+ * --------------------+-------------------+-----------
+ * Entire algorithm    | O(n+n*lg(n)/ncpu) |    O(N)
+ *
+ * Effectively for suficiently large number of CPUs, sorting time
+ * becomes linear to dataset:
+ * \lim{ncpu \rightarrow \infty} O(n+\frac{n*lg(n)}{ncpu}) = O(n + 0^+) = O(n)
+ * Less can't be achieved, as last merge can't be parallelized.
+ */
+void *psort_thread_fun(void *arg_v)
+{
+	pthread_t thread;
+	struct psort_state* arg = arg_v;
+	struct psort_state base_state;
+		struct psort_state child_state;
+	memcpy_replacement(&base_state, arg, sizeof(base_state));
+	if (arg->spawn_threads > 1) {
+		/* local state (assume, input state is unmodifiable) */
+		memcpy_replacement(&child_state, arg, sizeof(base_state));
+
+		base_state.spawn_threads /= 2;
+		child_state.spawn_threads = arg->spawn_threads
+			- base_state.spawn_threads;
+
+		base_state.nmemb /= 2;
+		child_state.nmemb = arg->nmemb - base_state.nmemb;
+
+		child_state.base += base_state.size *
+			base_state.nmemb;
+		/* spawn child */
+		if (pthread_create(&thread, 0, psort_thread_fun, &child_state)) {
+			/* failed to create thread */
+			arg->result = -errno;
+			return arg_v;
+		}
+	}
+
+	if (1 == base_state.spawn_threads) {
+		qsort(base_state.base, base_state.nmemb,
+		      base_state.size, base_state.compar);
+	} else {
+		psort_thread_fun(&base_state);
+		if (base_state.result) {
+			arg->result = base_state.result;
+		}
+	}
+
+	if (arg->spawn_threads > 1) {
+		if (pthread_join(thread, 0)) {
+			arg->result = -errno;
+			return arg_v;
+		}
+		if (child_state.result) {
+			arg->result = child_state.result;
+			return arg_v;
+		}
+		if (!arg->result) {
+			merge_ranges(arg->base, base_state.nmemb,
+				     child_state.nmemb, arg->size,
+				     arg->compar,
+				     arg->tmpbuf + (base_state.base
+						    - base_state.defbase));
+		}
+	}
+	return arg_v;
+}
+
+/**
+ * actual parallel sorting entry point
+ */
+int psort_main(void *base, size_t nmemb, size_t size,
+	       compar_t compar, int ncpu)
+{
+	struct psort_state base_state;
+	/* use half the number of logical CPUs for purpose of sorting */
+	base_state.spawn_threads = ncpu;
+	/* current num of CPUs */
+	base_state.defbase = base;
+	base_state.base = base;
+	base_state.nmemb = nmemb;
+	base_state.size = size;
+	base_state.compar = compar;
+	base_state.tmpbuf = malloc(size * nmemb);
+	base_state.result = 0;
+	if (!base_state.tmpbuf) {
+		return -1;
+	}
+	psort_thread_fun(&base_state);
+	free(base_state.tmpbuf);
+	return base_state.result;
+}
+
+void psort(void *base, size_t nmemb, size_t size,
+	  compar_t compar)
+{
+	/* entry point to psort */
+	int ncpu = sysconf(_SC_NPROCESSORS_ONLN)/2;
+	int maxncpu = nmemb / 1024;
+	if (maxncpu < ncpu) {
+		ncpu = maxncpu;
+	}
+	/* don't invoke actual psort when less than 2 threads are needed */
+	if (ncpu < 2) {
+		qsort(base, nmemb, size, compar);
+	} else {
+		if (psort_main(base, nmemb, size, compar, ncpu)) {
+			/* if parallel sorting failed (i.e. due to failed thread
+			 * creation, fall back to single threaded operation */
+			qsort(base, nmemb, size, compar);
+		}
+	}
+}

casadm/psort.h

@@ -0,0 +1,22 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef PSORT_H
+#define PSORT_H
+typedef int (*compar_t)(const void *, const void *);
+
+/**
+ * function does exactly the same thing as qsort, except, that it sorts
+ * using many CPU cores, not just one.
+ *
+ * number of CPU cores is configured as half of the number of online
+ * CPUs in the system.
+ */
+void psort(void *base, size_t nmemb, size_t size,
+	   compar_t compar);
+
+
+#endif
+

casadm/safeclib/ignore_handler_s.c

@@ -0,0 +1,72 @@
+/*------------------------------------------------------------------
+ * ignore_handler_s.c
+ *
+ * 2012, Jonathan Toppins <jtoppins@users.sourceforge.net>
+ *
+ * Copyright (c) 2012 Cisco Systems
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#include "safeclib_private.h"
+
+/**
+ * NAME
+ *    ignore_handler_s
+ *
+ * SYNOPSIS
+ *    #include "safe_lib.h"
+ *    void ignore_handler_s(const char *msg, void *ptr, errno_t error)
+ *
+ * DESCRIPTION
+ *    This function simply returns to the caller.
+ *
+ * SPECIFIED IN
+ *    ISO/IEC JTC1 SC22 WG14 N1172, Programming languages, environments
+ *    and system software interfaces, Extensions to the C Library,
+ *    Part I: Bounds-checking interfaces
+ *
+ * INPUT PARAMETERS
+ *    msg       Pointer to the message describing the error
+ *
+ *    ptr       Pointer to aassociated data.  Can be NULL.
+ *
+ *    error     The error code encountered.
+ *
+ * RETURN VALUE
+ *    Returns no value.
+ *
+ * ALSO SEE
+ *    abort_handler_s()
+ *
+ */
+
+void ignore_handler_s(const char *msg, void *ptr, errno_t error)
+{
+
+	sldebug_printf("IGNORE CONSTRAINT HANDLER: (%u) %s\n", error,
+		       (msg) ? msg : "Null message");
+	return;
+}
+EXPORT_SYMBOL(ignore_handler_s);

casadm/safeclib/mem_primitives_lib.c

@@ -0,0 +1,853 @@
+/*------------------------------------------------------------------
+ * mem_primitives_lib.c - Unguarded Memory Copy Routines
+ *
+ * February 2005, Bo Berry
+ *
+ * Copyright (c) 2005-2009 Cisco Systems
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#include "mem_primitives_lib.h"
+
+/*
+ * mem_primitives_lib.c  provides unguarded memory routines
+ * that are used by the safe_mem_library.   These routines
+ * may also be used by an application, but the application
+ * is responsible for all parameter validation and alignment.
+ */
+
+/**
+ * NAME
+ *    mem_prim_set - Sets memory to value
+ *
+ * SYNOPSIS
+ *    #include "mem_primitives_lib.h"
+ *    void
+ *    mem_prim_set(void *dest, uint32_t len, uint8_t value)
+ *
+ * DESCRIPTION
+ *    Sets len bytes starting at dest to the specified value
+ *
+ * INPUT PARAMETERS
+ *    dest - pointer to memory that will be set to value
+ *
+ *    len - number of bytes to be set
+ *
+ *    value - byte value
+ *
+ * OUTPUT PARAMETERS
+ *    dest - is updated
+ *
+ * RETURN VALUE
+ *    none
+ *
+ */
+void
+mem_prim_set (void *dest, uint32_t len, uint8_t value)
+{
+    uint8_t *dp;
+    uint32_t count;
+    uint32_t lcount;
+
+    uint32_t *lp;
+    uint32_t value32;
+
+    count = len;
+
+    dp = dest;
+
+    value32 = value | (value << 8) | (value << 16) | (value << 24);
+
+    /*
+     * First, do the few bytes to get uint32_t aligned.
+     */
+    for (; count && ( (uintptr_t)dp & (sizeof(uint32_t)-1) ); count--) {
+        *dp++ = value;
+    }
+
+    /*
+     * Then do the uint32_ts, unrolled the loop for performance
+     */
+    lp = (uint32_t *)dp;
+    lcount = count >> 2;
+
+    while (lcount != 0) {
+
+        switch (lcount) {
+        /*
+         * Here we do blocks of 8.  Once the remaining count
+         * drops below 8, take the fast track to finish up.
+         */
+        default:
+            *lp++ = value32; *lp++ = value32; *lp++ = value32; *lp++ = value32;
+            *lp++ = value32; *lp++ = value32; *lp++ = value32; *lp++ = value32;
+            *lp++ = value32; *lp++ = value32; *lp++ = value32; *lp++ = value32;
+            *lp++ = value32; *lp++ = value32; *lp++ = value32; *lp++ = value32;
+            lcount -= 16;
+            break;
+
+        case 15:  *lp++ = value32;
+        case 14:  *lp++ = value32;
+        case 13:  *lp++ = value32;
+        case 12:  *lp++ = value32;
+        case 11:  *lp++ = value32;
+        case 10:  *lp++ = value32;
+        case 9:  *lp++ = value32;
+        case 8:  *lp++ = value32;
+
+        case 7:  *lp++ = value32;
+        case 6:  *lp++ = value32;
+        case 5:  *lp++ = value32;
+        case 4:  *lp++ = value32;
+        case 3:  *lp++ = value32;
+        case 2:  *lp++ = value32;
+        case 1:  *lp++ = value32;
+            lcount = 0;
+            break;
+        }
+    } /* end while */
+
+
+    dp = (uint8_t *)lp;
+
+    /*
+     * compute the number of remaining bytes
+     */
+    count &= (sizeof(uint32_t)-1);
+
+    /*
+     * remaining bytes
+     */
+    for (; count; dp++, count--) {
+        *dp = value;
+    }
+
+    return;
+}
+
+
+/**
+ * NAME
+ *    mem_prim_set16 - Sets memory to value
+ *
+ * SYNOPSIS
+ *    #include "mem_primitives_lib.h"
+ *    void
+ *    mem_prim_set16(uint16_t *dp, uint32_t len, uint16_t value)
+ *
+ * DESCRIPTION
+ *    Sets len uint16_ts starting at dest to the specified value.
+ *    Pointers must meet system alignment requirements.
+ *
+ * INPUT PARAMETERS
+ *    dest - pointer to memory that will be set to value
+ *
+ *    len - number of uint16_ts to be set
+ *
+ *    value - uint16_t value
+ *
+ * OUTPUT PARAMETERS
+ *    dest - is updated
+ *
+ * RETURN VALUE
+ *    none
+ *
+ */
+void
+mem_prim_set16 (uint16_t *dp, uint32_t len, uint16_t value)
+{
+
+    while (len != 0) {
+
+        switch (len) {
+        /*
+         * Here we do blocks of 8.  Once the remaining count
+         * drops below 8, take the fast track to finish up.
+         */
+        default:
+            *dp++ = value; *dp++ = value; *dp++ = value; *dp++ = value;
+            *dp++ = value; *dp++ = value; *dp++ = value; *dp++ = value;
+            *dp++ = value; *dp++ = value; *dp++ = value; *dp++ = value;
+            *dp++ = value; *dp++ = value; *dp++ = value; *dp++ = value;
+            len -= 16;
+            break;
+
+        case 15:  *dp++ = value;
+        case 14:  *dp++ = value;
+        case 13:  *dp++ = value;
+        case 12:  *dp++ = value;
+        case 11:  *dp++ = value;
+        case 10:  *dp++ = value;
+        case 9:  *dp++ = value;
+        case 8:  *dp++ = value;
+
+        case 7:  *dp++ = value;
+        case 6:  *dp++ = value;
+        case 5:  *dp++ = value;
+        case 4:  *dp++ = value;
+        case 3:  *dp++ = value;
+        case 2:  *dp++ = value;
+        case 1:  *dp++ = value;
+            len = 0;
+            break;
+        }
+    } /* end while */
+
+    return;
+}
+
+
+/**
+ * NAME
+ *    mem_prim_set32 - Sets memory to the uint32_t value
+ *
+ * SYNOPSIS
+ *    #include "mem_primitives_lib.h"
+ *    void
+ *    mem_prim_set32(uint32_t *dp, uint32_t len, uint32_t value)
+ *
+ * DESCRIPTION
+ *    Sets len uint32_ts starting at dest to the specified value
+ *    Pointers must meet system alignment requirements.
+ *
+ * INPUT PARAMETERS
+ *    dest - pointer to memory that will be set to value
+ *
+ *    len - number of uint32_ts to be set
+ *
+ *    value - uint32_t value
+ *
+ * OUTPUT PARAMETERS
+ *    dest - is updated
+ *
+ * RETURN VALUE
+ *    none
+ *
+ */
+void
+mem_prim_set32 (uint32_t *dp, uint32_t len, uint32_t value)
+{
+
+    while (len != 0) {
+
+        switch (len) {
+        /*
+         * Here we do blocks of 8.  Once the remaining count
+         * drops below 8, take the fast track to finish up.
+         */
+        default:
+            *dp++ = value; *dp++ = value; *dp++ = value; *dp++ = value;
+            *dp++ = value; *dp++ = value; *dp++ = value; *dp++ = value;
+            *dp++ = value; *dp++ = value; *dp++ = value; *dp++ = value;
+            *dp++ = value; *dp++ = value; *dp++ = value; *dp++ = value;
+            len -= 16;
+            break;
+
+        case 15:  *dp++ = value;
+        case 14:  *dp++ = value;
+        case 13:  *dp++ = value;
+        case 12:  *dp++ = value;
+        case 11:  *dp++ = value;
+        case 10:  *dp++ = value;
+        case 9:  *dp++ = value;
+        case 8:  *dp++ = value;
+
+        case 7:  *dp++ = value;
+        case 6:  *dp++ = value;
+        case 5:  *dp++ = value;
+        case 4:  *dp++ = value;
+        case 3:  *dp++ = value;
+        case 2:  *dp++ = value;
+        case 1:  *dp++ = value;
+            len = 0;
+            break;
+        }
+    } /* end while */
+
+    return;
+}
+
+
+/**
+ * NAME
+ *    mem_prim_move - Move (handles overlap) memory
+ *
+ * SYNOPSIS
+ *    #include "mem_primitives_lib.h"
+ *    void
+ *    mem_prim_move(void *dest, const void *src, uint32_t len)
+ *
+ * DESCRIPTION
+ *    Moves at most slen bytes from src to dest, up to dmax
+ *    bytes.   Dest may overlap with src.
+ *
+ * INPUT PARAMETERS
+ *    dest - pointer to the memory that will be replaced by src.
+ *
+ *    src - pointer to the memory that will be copied
+ *          to dest
+ *
+ *    len - maximum number bytes of src that can be copied
+ *
+ * OUTPUT PARAMETERS
+ *    dest - is updated
+ *
+ * RETURN VALUE
+ *    none
+ *
+ */
+void
+mem_prim_move (void *dest, const void *src, uint32_t len)
+{
+
+#define wsize   sizeof(uint32_t)
+#define wmask   (wsize - 1)
+
+    uint8_t *dp = dest;
+    const uint8_t *sp = src;
+
+    uint32_t tsp;
+
+    /*
+     * Determine if we need to copy forward or backward (overlap)
+     */
+    if ((uintptr_t)dp < (uintptr_t)sp) {
+        /*
+         * Copy forward.
+         */
+
+        /*
+         * get a working copy of src for bit operations
+         */
+        tsp = (uintptr_t)sp;
+
+        /*
+         * Try to align both operands.  This cannot be done
+         * unless the low bits match.
+         */
+        if ((tsp | (uintptr_t)dp) & wmask) {
+            /*
+             * determine how many bytes to copy to align operands
+             */
+            if ((tsp ^ (uintptr_t)dp) & wmask || len < wsize) {
+                tsp = len;
+
+            } else {
+                tsp = wsize - (tsp & wmask);
+            }
+
+            len -= tsp;
+
+            /*
+             * make the alignment
+             */
+            do {
+                *dp++ = *sp++;
+            } while (--tsp);
+        }
+
+        /*
+         * Now copy, then mop up any trailing bytes.
+         */
+        tsp = len / wsize;
+
+        if (tsp > 0) {
+
+            do {
+                *(uint32_t *)dp = *(uint32_t *)sp;
+
+                sp += wsize;
+                dp += wsize;
+            } while (--tsp);
+        }
+
+        /*
+         * copy over the remaining bytes and we're done
+         */
+        tsp = len & wmask;
+
+        if (tsp > 0) {
+            do {
+                *dp++ = *sp++;
+            } while (--tsp);
+        }
+
+    } else {
+        /*
+         * This section is used to copy backwards, to handle any
+         * overlap.  The alignment requires (tps&wmask) bytes to
+         * align.
+         */
+
+        /*
+         * go to end of the memory to copy
+         */
+        sp += len;
+        dp += len;
+
+        /*
+         * get a working copy of src for bit operations
+         */
+        tsp = (uintptr_t)sp;
+
+        /*
+         * Try to align both operands.
+         */
+        if ((tsp | (uintptr_t)dp) & wmask) {
+
+            if ((tsp ^ (uintptr_t)dp) & wmask || len <= wsize) {
+                tsp = len;
+            } else {
+                tsp &= wmask;
+            }
+
+            len -= tsp;
+
+            /*
+             * make the alignment
+             */
+            do {
+                *--dp = *--sp;
+            } while (--tsp);
+        }
+
+        /*
+         * Now copy in uint32_t units, then mop up any trailing bytes.
+         */
+        tsp = len / wsize;
+
+        if (tsp > 0) {
+            do {
+                sp -= wsize;
+                dp -= wsize;
+
+                *(uint32_t *)dp = *(uint32_t *)sp;
+            } while (--tsp);
+        }
+
+        /*
+         * copy over the remaining bytes and we're done
+         */
+        tsp = len & wmask;
+        if (tsp > 0) {
+            tsp = len & wmask;
+            do {
+                *--dp = *--sp;
+            } while (--tsp);
+        }
+    }
+
+    return;
+}
+
+
+/**
+ * NAME
+ *    mem_prim_move8 - Move (handles overlap) memory
+ *
+ * SYNOPSIS
+ *    #include "mem_primitives_lib.h"
+ *    void
+ *    mem_prim_move8(void *dest, const void *src, uint32_t len)
+ *
+ * DESCRIPTION
+ *    Moves at most len uint8_ts from sp to dp.
+ *    The destination may overlap with source.
+ *
+ * INPUT PARAMETERS
+ *    dp - pointer to the memory that will be replaced by sp.
+ *
+ *    sp - pointer to the memory that will be copied
+ *         to dp
+ *
+ *    len - maximum number uint8_t of sp that can be copied
+ *
+ * OUTPUT PARAMETERS
+ *    dp - pointer to the memory that will be replaced by sp.
+ *
+ * RETURN VALUE
+ *    none
+ *
+ */
+void
+mem_prim_move8 (uint8_t *dp, const uint8_t *sp, uint32_t len)
+{
+
+    /*
+     * Determine if we need to copy forward or backward (overlap)
+     */
+    if (dp < sp) {
+        /*
+         * Copy forward.
+         */
+
+         while (len != 0) {
+
+             switch (len) {
+             /*
+              * Here we do blocks of 8.  Once the remaining count
+              * drops below 8, take the fast track to finish up.
+              */
+             default:
+                  *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
+                  *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
+                  *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
+                  *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
+                  len -= 16;
+                  break;
+
+             case 15:  *dp++ = *sp++;
+             case 14:  *dp++ = *sp++;
+             case 13:  *dp++ = *sp++;
+             case 12:  *dp++ = *sp++;
+             case 11:  *dp++ = *sp++;
+             case 10:  *dp++ = *sp++;
+             case 9:  *dp++ = *sp++;
+             case 8:  *dp++ = *sp++;
+
+             case 7:  *dp++ = *sp++;
+             case 6:  *dp++ = *sp++;
+             case 5:  *dp++ = *sp++;
+             case 4:  *dp++ = *sp++;
+             case 3:  *dp++ = *sp++;
+             case 2:  *dp++ = *sp++;
+             case 1:  *dp++ = *sp++;
+                 len = 0;
+                 break;
+             }
+         } /* end while */
+
+    } else {
+        /*
+         * This section is used to copy backwards, to handle any
+         * overlap.  The alignment requires (tps&wmask) bytes to
+         * align.
+         */
+
+
+        /*
+         * go to end of the memory to copy
+         */
+        sp += len;
+        dp += len;
+
+        while (len != 0) {
+
+            switch (len) {
+            /*
+             * Here we do blocks of 8.  Once the remaining count
+             * drops below 8, take the fast track to finish up.
+             */
+            default:
+                 *--dp = *--sp; *--dp = *--sp; *--dp = *--sp; *--dp = *--sp;
+                 *--dp = *--sp; *--dp = *--sp; *--dp = *--sp; *--dp = *--sp;
+                 *--dp = *--sp; *--dp = *--sp; *--dp = *--sp; *--dp = *--sp;
+                 *--dp = *--sp; *--dp = *--sp; *--dp = *--sp; *--dp = *--sp;
+                 len -= 16;
+                 break;
+
+            case 15:  *--dp = *--sp;
+            case 14:  *--dp = *--sp;
+            case 13:  *--dp = *--sp;
+            case 12:  *--dp = *--sp;
+            case 11:  *--dp = *--sp;
+            case 10:  *--dp = *--sp;
+            case 9:  *--dp = *--sp;
+            case 8:  *--dp = *--sp;
+
+            case 7:  *--dp = *--sp;
+            case 6:  *--dp = *--sp;
+            case 5:  *--dp = *--sp;
+            case 4:  *--dp = *--sp;
+            case 3:  *--dp = *--sp;
+            case 2:  *--dp = *--sp;
+            case 1:  *--dp = *--sp;
+                len = 0;
+                break;
+            }
+        } /* end while */
+    }
+
+    return;
+}
+
+
+/**
+ * NAME
+ *    mem_prim_move16 - Move (handles overlap) memory
+ *
+ * SYNOPSIS
+ *    #include "mem_primitives_lib.h"
+ *    void
+ *    mem_prim_move16(void *dest, const void *src, uint32_t len)
+ *
+ * DESCRIPTION
+ *    Moves at most len uint16_ts from sp to dp.
+ *    The destination may overlap with source.
+ *
+ * INPUT PARAMETERS
+ *    dp - pointer to the memory that will be replaced by sp.
+ *
+ *    sp - pointer to the memory that will be copied
+ *         to dp
+ *
+ *    len - maximum number uint16_t of sp that can be copied
+ *
+ * OUTPUT PARAMETERS
+ *    dp - is updated
+ *
+ * RETURN VALUE
+ *    none
+ *
+ */
+void
+mem_prim_move16 (uint16_t *dp, const uint16_t *sp, uint32_t len)
+{
+
+    /*
+     * Determine if we need to copy forward or backward (overlap)
+     */
+    if (dp < sp) {
+        /*
+         * Copy forward.
+         */
+
+         while (len != 0) {
+
+             switch (len) {
+             /*
+              * Here we do blocks of 8.  Once the remaining count
+              * drops below 8, take the fast track to finish up.
+              */
+             default:
+                  *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
+                  *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
+                  *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
+                  *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
+                  len -= 16;
+                  break;
+
+             case 15:  *dp++ = *sp++;
+             case 14:  *dp++ = *sp++;
+             case 13:  *dp++ = *sp++;
+             case 12:  *dp++ = *sp++;
+             case 11:  *dp++ = *sp++;
+             case 10:  *dp++ = *sp++;
+             case 9:  *dp++ = *sp++;
+             case 8:  *dp++ = *sp++;
+
+             case 7:  *dp++ = *sp++;
+             case 6:  *dp++ = *sp++;
+             case 5:  *dp++ = *sp++;
+             case 4:  *dp++ = *sp++;
+             case 3:  *dp++ = *sp++;
+             case 2:  *dp++ = *sp++;
+             case 1:  *dp++ = *sp++;
+                 len = 0;
+                 break;
+             }
+         } /* end while */
+
+    } else {
+        /*
+         * This section is used to copy backwards, to handle any
+         * overlap.  The alignment requires (tps&wmask) bytes to
+         * align.
+         */
+
+        /*
+         * go to end of the memory to copy
+         */
+        sp += len;
+        dp += len;
+
+        while (len != 0) {
+
+            switch (len) {
+            /*
+             * Here we do blocks of 8.  Once the remaining count
+             * drops below 8, take the fast track to finish up.
+             */
+            default:
+                 *--dp = *--sp; *--dp = *--sp; *--dp = *--sp; *--dp = *--sp;
+                 *--dp = *--sp; *--dp = *--sp; *--dp = *--sp; *--dp = *--sp;
+                 *--dp = *--sp; *--dp = *--sp; *--dp = *--sp; *--dp = *--sp;
+                 *--dp = *--sp; *--dp = *--sp; *--dp = *--sp; *--dp = *--sp;
+                 len -= 16;
+                 break;
+
+            case 15:  *--dp = *--sp;
+            case 14:  *--dp = *--sp;
+            case 13:  *--dp = *--sp;
+            case 12:  *--dp = *--sp;
+            case 11:  *--dp = *--sp;
+            case 10:  *--dp = *--sp;
+            case 9:  *--dp = *--sp;
+            case 8:  *--dp = *--sp;
+
+            case 7:  *--dp = *--sp;
+            case 6:  *--dp = *--sp;
+            case 5:  *--dp = *--sp;
+            case 4:  *--dp = *--sp;
+            case 3:  *--dp = *--sp;
+            case 2:  *--dp = *--sp;
+            case 1:  *--dp = *--sp;
+                len = 0;
+                break;
+            }
+        } /* end while */
+    }
+
+    return;
+}
+
+
+/**
+ * NAME
+ *    mem_prim_move32 - Move (handles overlap) memory
+ *
+ * SYNOPSIS
+ *    #include "mem_primitives_lib.h"
+ *    void
+ *    mem_prim_move32(void *dest, const void *src, uint32_t len)
+ *
+ * DESCRIPTION
+ *    Moves at most len uint32_ts from sp to dp.
+ *    The destination may overlap with source.
+ *
+ * INPUT PARAMETERS
+ *    dp - pointer to the memory that will be replaced by sp.
+ *
+ *    sp - pointer to the memory that will be copied
+ *         to dp
+ *
+ *    len - maximum number uint32_t of sp that can be copied
+ *
+ * OUTPUT PARAMETERS
+ *    dp - is updated
+ *
+ * RETURN VALUE
+ *    none
+ *
+ */
+void
+mem_prim_move32 (uint32_t *dp, const uint32_t *sp, uint32_t len)
+{
+
+    /*
+     * Determine if we need to copy forward or backward (overlap)
+     */
+    if (dp < sp) {
+        /*
+         * Copy forward.
+         */
+
+         while (len != 0) {
+
+             switch (len) {
+             /*
+              * Here we do blocks of 8.  Once the remaining count
+              * drops below 8, take the fast track to finish up.
+              */
+             default:
+                  *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
+                  *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
+                  *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
+                  *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
+                  len -= 16;
+                  break;
+
+             case 15:  *dp++ = *sp++;
+             case 14:  *dp++ = *sp++;
+             case 13:  *dp++ = *sp++;
+             case 12:  *dp++ = *sp++;
+             case 11:  *dp++ = *sp++;
+             case 10:  *dp++ = *sp++;
+             case 9:  *dp++ = *sp++;
+             case 8:  *dp++ = *sp++;
+
+             case 7:  *dp++ = *sp++;
+             case 6:  *dp++ = *sp++;
+             case 5:  *dp++ = *sp++;
+             case 4:  *dp++ = *sp++;
+             case 3:  *dp++ = *sp++;
+             case 2:  *dp++ = *sp++;
+             case 1:  *dp++ = *sp++;
+                 len = 0;
+                 break;
+             }
+         } /* end while */
+
+    } else {
+        /*
+         * This section is used to copy backwards, to handle any
+         * overlap.
+         */
+
+        /*
+         * go to end of the memory to copy
+         */
+        sp += len;
+        dp += len;
+
+        while (len != 0) {
+
+            switch (len) {
+            /*
+             * Here we do blocks of 8.  Once the remaining count
+             * drops below 8, take the fast track to finish up.
+             */
+            default:
+                 *--dp = *--sp; *--dp = *--sp; *--dp = *--sp; *--dp = *--sp;
+                 *--dp = *--sp; *--dp = *--sp; *--dp = *--sp; *--dp = *--sp;
+                 *--dp = *--sp; *--dp = *--sp; *--dp = *--sp; *--dp = *--sp;
+                 *--dp = *--sp; *--dp = *--sp; *--dp = *--sp; *--dp = *--sp;
+                 len -= 16;
+                 break;
+
+            case 15:  *--dp = *--sp;
+            case 14:  *--dp = *--sp;
+            case 13:  *--dp = *--sp;
+            case 12:  *--dp = *--sp;
+            case 11:  *--dp = *--sp;
+            case 10:  *--dp = *--sp;
+            case 9:  *--dp = *--sp;
+            case 8:  *--dp = *--sp;
+
+            case 7:  *--dp = *--sp;
+            case 6:  *--dp = *--sp;
+            case 5:  *--dp = *--sp;
+            case 4:  *--dp = *--sp;
+            case 3:  *--dp = *--sp;
+            case 2:  *--dp = *--sp;
+            case 1:  *--dp = *--sp;
+                len = 0;
+                break;
+            }
+        } /* end while */
+    }
+
+    return;
+}

casadm/safeclib/mem_primitives_lib.h

@@ -0,0 +1,74 @@
+/*------------------------------------------------------------------
+ * mem_primitives_lib.h - Unguarded Memory Copy Routines
+ *
+ * October 2008, Bo Berry
+ *
+ * Copyright (c) 2008-2011 by Cisco Systems, Inc
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#ifndef __MEM_PRIMITIVES_LIB_H__
+#define __MEM_PRIMITIVES_LIB_H__
+
+#include "safeclib_private.h"
+
+/*
+ * These are prototypes for _unguarded_ memory routines.  The caller must
+ * validate all parameters prior to invocation.  Useful for diagnostics
+ * and system initialization processing.
+ */
+
+/* moves (handles overlap) memory  */
+extern void
+mem_prim_move(void *dest, const void *src, uint32_t length);
+
+
+/* uint8_t moves (handles overlap) memory */
+extern void
+mem_prim_move8(uint8_t *dest, const uint8_t *src, uint32_t length);
+
+/* uint16_t moves (handles overlap) memory */
+extern void
+mem_prim_move16(uint16_t *dest, const uint16_t *src, uint32_t length);
+
+/* uint32_t moves (handles overlap) memory */
+extern void
+mem_prim_move32(uint32_t *dest, const uint32_t *src, uint32_t length);
+
+
+/* set bytes */
+extern void
+mem_prim_set(void *dest, uint32_t dmax, uint8_t value);
+
+/* set uint16_ts */
+extern void
+mem_prim_set16(uint16_t *dest, uint32_t dmax, uint16_t value);
+
+/* set uint32_ts */
+extern void
+mem_prim_set32(uint32_t *dest, uint32_t dmax, uint32_t value);
+
+
+#endif  /* __MEM_PRIMITIVES_LIB_H__ */

casadm/safeclib/memcpy_s.c

@@ -0,0 +1,157 @@
+/*------------------------------------------------------------------
+ * memcpy_s
+ *
+ * October 2008, Bo Berry
+ *
+ * Copyright (c) 2008-2011 Cisco Systems
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#include "safeclib_private.h"
+#include "safe_mem_constraint.h"
+#include "mem_primitives_lib.h"
+#include "safe_mem_lib.h"
+
+
+/**
+ * NAME
+ *    memcpy_s
+ *
+ * SYNOPSIS
+ *    #include "safe_mem_lib.h"
+ *    errno_t
+ *    memcpy_s(void *dest, rsize_t dmax, const void *src, rsize_t smax)
+ *
+ * DESCRIPTION
+ *    This function copies at most smax bytes from src to dest, up to
+ *    dmax.
+ *
+ * SPECIFIED IN
+ *    ISO/IEC JTC1 SC22 WG14 N1172, Programming languages, environments
+ *    and system software interfaces, Extensions to the C Library,
+ *    Part I: Bounds-checking interfaces
+ *
+ * INPUT PARAMETERS
+ *    dest      pointer to memory that will be replaced by src.
+ *
+ *    dmax      maximum length of the resulting dest
+ *
+ *    src       pointer to the memory that will be copied to dest
+ *
+ *    smax      maximum number bytes of src to copy
+ *
+ *  OUTPUT PARAMETERS
+ *    dest      is updated
+ *
+ * RUNTIME CONSTRAINTS
+ *    Neither dest nor src shall be a null pointer.
+ *    Neither dmax nor smax shall be zero.
+ *    dmax shall not be greater than RSIZE_MAX_MEM.
+ *    smax shall not be greater than dmax.
+ *    Copying shall not take place between regions that overlap.
+ *    If there is a runtime-constraint violation, the memcpy_s function
+ *        stores zeros in the first dmax bytes of the region pointed to
+ *        by dest if dest is not a null pointer and smax is valid.
+ *
+ * RETURN VALUE
+ *    EOK        successful operation
+ *    ESNULLP    NULL pointer
+ *    ESZEROL    zero length
+ *    ESLEMAX    length exceeds max limit
+ *    ESOVRLP    source memory overlaps destination
+ *
+ * ALSO SEE
+ *    memcpy16_s(), memcpy32_s(), memmove_s(), memmove16_s(),
+ *     memmove32_s()
+ *
+ */
+errno_t
+memcpy_s (void *dest, rsize_t dmax, const void *src, rsize_t smax)
+{
+    uint8_t *dp;
+    const uint8_t  *sp;
+
+    dp = dest;
+    sp = src;
+
+    if (dp == NULL) {
+        invoke_safe_mem_constraint_handler("memcpy_s: dest is NULL",
+                   NULL, ESNULLP);
+        return RCNEGATE(ESNULLP);
+    }
+
+    if (dmax == 0) {
+        invoke_safe_mem_constraint_handler("memcpy_s: dmax is 0",
+                   NULL, ESZEROL);
+        return RCNEGATE(ESZEROL);
+    }
+
+    if (dmax > RSIZE_MAX_MEM) {
+        invoke_safe_mem_constraint_handler("memcpy_s: dmax exceeds max",
+                   NULL, ESLEMAX);
+        return RCNEGATE(ESLEMAX);
+    }
+
+    if (smax == 0) {
+        mem_prim_set(dp, dmax, 0);
+        invoke_safe_mem_constraint_handler("memcpy_s: smax is 0",
+                   NULL, ESZEROL);
+        return RCNEGATE(ESZEROL);
+    }
+
+    if (smax > dmax) {
+        mem_prim_set(dp, dmax, 0);
+        invoke_safe_mem_constraint_handler("memcpy_s: smax exceeds dmax",
+                   NULL, ESLEMAX);
+        return RCNEGATE(ESLEMAX);
+    }
+
+    if (sp == NULL) {
+        mem_prim_set(dp, dmax, 0);
+        invoke_safe_mem_constraint_handler("memcpy_s: src is NULL",
+                   NULL, ESNULLP);
+        return RCNEGATE(ESNULLP);
+    }
+
+
+    /*
+     * overlap is undefined behavior, do not allow
+     */
+    if( ((dp > sp) && (dp < (sp+smax))) ||
+        ((sp > dp) && (sp < (dp+dmax))) ) {
+        mem_prim_set(dp, dmax, 0);
+        invoke_safe_mem_constraint_handler("memcpy_s: overlap undefined",
+                   NULL, ESOVRLP);
+        return RCNEGATE(ESOVRLP);
+    }
+
+    /*
+     * now perform the copy
+     */
+    mem_prim_move(dp, sp, smax);
+
+    return RCNEGATE(EOK);
+}
+EXPORT_SYMBOL(memcpy_s);

casadm/safeclib/memmove_s.c

@@ -0,0 +1,148 @@
+/*------------------------------------------------------------------
+ * memmove_s.c
+ *
+ * October 2008, Bo Berry
+ *
+ * Copyright (c) 2008-2011 Cisco Systems
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#include "safeclib_private.h"
+#include "safe_mem_constraint.h"
+#include "mem_primitives_lib.h"
+#include "safe_mem_lib.h"
+
+/**
+ * NAME
+ *    memmove_s
+ *
+ * SYNOPSIS
+ *    #include "safe_mem_lib.h"
+ *    errno_t
+ *    memmove_s(void *dest, rsize_t dmax,
+ *              const void *src, rsize_t smax)
+ *
+ * DESCRIPTION
+ *    The memmove_s function copies smax bytes from the region pointed
+ *    to by src into the region pointed to by dest. This copying takes place
+ *    as if the smax bytes from the region pointed to by src are first copied
+ *    into a temporary array of smax bytes that does not overlap the region
+ *    pointed to by dest or src, and then the smax bytes from the temporary
+ *    array are copied into the object region to by dest.
+ *
+ * SPECIFIED IN
+ *    ISO/IEC TR 24731, Programming languages, environments
+ *    and system software interfaces, Extensions to the C Library,
+ *    Part I: Bounds-checking interfaces
+ *
+ * INPUT PARAMETERS
+ *    dest       pointer to the memory that will be replaced by src.
+ *
+ *    dmax       maximum length of the resulting dest, in bytes
+ *
+ *    src        pointer to the memory that will be copied
+ *                to dest
+ *
+ *    smax       maximum number bytes of src that can be copied
+ *
+ *  OUTPUT PARAMETERS
+ *    dest      is updated
+ *
+ * RUNTIME CONSTRAINTS
+ *    Neither dest nor src shall be a null pointer.
+ *    Neither dmax nor smax shall be 0.
+ *    dmax shall not be greater than RSIZE_MAX_MEM.
+ *    smax shall not be greater than dmax.
+ *    If there is a runtime-constraint violation, the memmove_s function
+ *      stores zeros in the first dmax characters of the regionpointed to
+ *      by dest if dest is not a null pointer and dmax is not greater
+ *      than RSIZE_MAX_MEM.
+ *
+ * RETURN VALUE
+ *    EOK        successful operation
+ *    ESNULLP    NULL pointer
+ *    ESZEROL    zero length
+ *    ESLEMAX    length exceeds max limit
+ *
+ * ALSO SEE
+ *    memmove16_s(), memmove32_s(), memcpy_s(), memcpy16_s() memcpy32_s()
+ *
+ */
+errno_t
+memmove_s (void *dest, rsize_t dmax, const void *src, rsize_t smax)
+{
+    uint8_t *dp;
+    const uint8_t  *sp;
+
+    dp= dest;
+    sp = src;
+
+    if (dp == NULL) {
+        invoke_safe_mem_constraint_handler("memmove_s: dest is null",
+                   NULL, ESNULLP);
+        return (RCNEGATE(ESNULLP));
+    }
+
+    if (dmax == 0) {
+        invoke_safe_mem_constraint_handler("memmove_s: dmax is 0",
+                   NULL, ESZEROL);
+        return (RCNEGATE(ESZEROL));
+    }
+
+    if (dmax > RSIZE_MAX_MEM) {
+        invoke_safe_mem_constraint_handler("memmove_s: dmax exceeds max",
+                   NULL, ESLEMAX);
+        return (RCNEGATE(ESLEMAX));
+    }
+
+    if (smax == 0) {
+        mem_prim_set(dp, dmax, 0);
+        invoke_safe_mem_constraint_handler("memmove_s: smax is 0",
+                   NULL, ESZEROL);
+        return (RCNEGATE(ESZEROL));
+    }
+
+    if (smax > dmax) {
+        mem_prim_set(dp, dmax, 0);
+        invoke_safe_mem_constraint_handler("memmove_s: smax exceeds max",
+                   NULL, ESLEMAX);
+        return (RCNEGATE(ESLEMAX));
+    }
+
+    if (sp == NULL) {
+        mem_prim_set(dp, dmax, 0);
+        invoke_safe_mem_constraint_handler("memmove_s: src is null",
+                   NULL, ESNULLP);
+        return (RCNEGATE(ESNULLP));
+    }
+
+    /*
+     * now perform the copy
+     */
+    mem_prim_move(dp, sp, smax);
+
+    return (RCNEGATE(EOK));
+}
+EXPORT_SYMBOL(memmove_s);

casadm/safeclib/memset_s.c

@@ -0,0 +1,105 @@
+/*------------------------------------------------------------------
+ * memset_s
+ *
+ * October 2008, Bo Berry
+ *
+ * Copyright (c) 2008-2011 Cisco Systems
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#include "safeclib_private.h"
+#include "safe_mem_constraint.h"
+#include "mem_primitives_lib.h"
+#include "safe_mem_lib.h"
+
+
+/**
+ * NAME
+ *    memset_s
+ *
+ * SYNOPSIS
+ *    #include "safe_mem_lib.h"
+ *    errno_t
+ *    memset_s(void *dest, rsize_t len, uint8_t value)
+ *
+ * DESCRIPTION
+ *    Sets len bytes starting at dest to the specified value.
+ *
+ * SPECIFIED IN
+ *    ISO/IEC JTC1 SC22 WG14 N1172, Programming languages, environments
+ *    and system software interfaces, Extensions to the C Library,
+ *    Part I: Bounds-checking interfaces
+ *
+ * INPUT PARAMETERS
+ *    dest       pointer to memory that will be set to the value
+ *
+ *    len        number of bytes to be set
+ *
+ *    value      byte value
+ *
+ * OUTPUT PARAMETERS
+ *    dest      is updated
+ *
+ * RUNTIME CONSTRAINTS
+ *    dest shall not be a null pointer.
+ *    len shall not be 0 nor greater than RSIZE_MAX_MEM.
+ *    If there is a runtime constraint, the operation is not performed.
+ *
+ * RETURN VALUE
+ *    EOK        successful operation
+ *    ESNULLP    NULL pointer
+ *    ESZEROL    zero length
+ *    ESLEMAX    length exceeds max limit
+ *
+ * ALSO SEE
+ *    memset16_s(), memset32_s()
+ *
+ */
+errno_t
+memset_s (void *dest, rsize_t len, uint8_t value)
+{
+    if (dest == NULL) {
+        invoke_safe_mem_constraint_handler("memset_s: dest is null",
+                   NULL, ESNULLP);
+        return (RCNEGATE(ESNULLP));
+    }
+
+    if (len == 0) {
+        invoke_safe_mem_constraint_handler("memset_s: len is 0",
+                   NULL, ESZEROL);
+        return (RCNEGATE(ESZEROL));
+    }
+
+    if (len > RSIZE_MAX_MEM) {
+        invoke_safe_mem_constraint_handler("memset_s: len exceeds max",
+                   NULL, ESLEMAX);
+        return (RCNEGATE(ESLEMAX));
+    }
+
+    mem_prim_set(dest, len, value);
+
+    return (RCNEGATE(EOK));
+}
+EXPORT_SYMBOL(memset_s);

casadm/safeclib/safe_lib.h

@@ -0,0 +1,61 @@
+/*------------------------------------------------------------------
+ * safe_lib.h -- Safe C Library
+ *
+ * October 2008, Bo Berry
+ * Modified 2012, Jonathan Toppins <jtoppins@users.sourceforge.net>
+ *
+ * Copyright (c) 2008-2013 by Cisco Systems, Inc
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#ifndef __SAFE_LIB_H__
+#define __SAFE_LIB_H__
+
+#include "safe_types.h"
+#include "safe_lib_errno.h"
+
+/* C11 appendix K types - specific for bounds checking */
+typedef size_t  rsize_t;
+
+/*
+ * We depart from the standard and allow memory and string operations to
+ * have different max sizes. See the respective safe_mem_lib.h or
+ * safe_str_lib.h files.
+ */
+/* #define RSIZE_MAX (~(rsize_t)0)  - leave here for completeness */
+
+typedef void (*constraint_handler_t) (const char * /* msg */,
+                                      void *       /* ptr */,
+                                      errno_t      /* error */);
+
+extern void abort_handler_s(const char *msg, void *ptr, errno_t error);
+extern void ignore_handler_s(const char *msg, void *ptr, errno_t error);
+
+#define sl_default_handler ignore_handler_s
+
+#include "safe_mem_lib.h"
+#include "safe_str_lib.h"
+
+#endif /* __SAFE_LIB_H__ */

casadm/safeclib/safe_lib_errno.h

@@ -0,0 +1,91 @@
+/*------------------------------------------------------------------
+ * safe_lib_errno.h -- Safe C Lib Error codes
+ *
+ * October 2008, Bo Berry
+ * Modified 2012, Jonathan Toppins <jtoppins@users.sourceforge.net>
+ *
+ * Copyright (c) 2008-2013 by Cisco Systems, Inc
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#ifndef __SAFE_LIB_ERRNO_H__
+#define __SAFE_LIB_ERRNO_H__
+
+#ifdef __KERNEL__
+# include <linux/errno.h>
+#else
+#include <errno.h>
+#endif /* __KERNEL__ */
+
+/*
+ * Safe Lib specific errno codes.  These can be added to the errno.h file
+ * if desired.
+ */
+#ifndef ESNULLP
+#define ESNULLP         ( 400 )       /* null ptr                    */
+#endif
+
+#ifndef ESZEROL
+#define ESZEROL         ( 401 )       /* length is zero              */
+#endif
+
+#ifndef ESLEMIN
+#define ESLEMIN         ( 402 )       /* length is below min         */
+#endif
+
+#ifndef ESLEMAX
+#define ESLEMAX         ( 403 )       /* length exceeds max          */
+#endif
+
+#ifndef ESOVRLP
+#define ESOVRLP         ( 404 )       /* overlap undefined           */
+#endif
+
+#ifndef ESEMPTY
+#define ESEMPTY         ( 405 )       /* empty string                */
+#endif
+
+#ifndef ESNOSPC
+#define ESNOSPC         ( 406 )       /* not enough space for s2     */
+#endif
+
+#ifndef ESUNTERM
+#define ESUNTERM        ( 407 )       /* unterminated string         */
+#endif
+
+#ifndef ESNODIFF
+#define ESNODIFF        ( 408 )       /* no difference               */
+#endif
+
+#ifndef ESNOTFND
+#define ESNOTFND        ( 409 )       /* not found                   */
+#endif
+
+/* EOK may or may not be defined in errno.h */
+#ifndef EOK
+#define EOK             ( 0 )
+#endif
+
+#endif /* __SAFE_LIB_ERRNO_H__ */

casadm/safeclib/safe_mem_constraint.c

@@ -0,0 +1,142 @@
+/*------------------------------------------------------------------
+ * safe_mem_constraint.c
+ *
+ * October 2008, Bo Berry
+ * 2012, Jonathan Toppins <jtoppins@users.sourceforge.net>
+ *
+ * Copyright (c) 2008-2012 Cisco Systems
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#include "safeclib_private.h"
+#include "safe_mem_constraint.h"
+#include "safe_mem_lib.h"
+
+
+static constraint_handler_t mem_handler = NULL;
+
+
+/**
+ * NAME
+ *    set_mem_constraint_handler_s
+ *
+ * SYNOPSIS
+ *    #include "safe_mem_lib.h"
+ *    constraint_handler_t
+ *    set_mem_constraint_handler_straint_handler_t handler)
+ *
+ * DESCRIPTION
+ *    The set_mem_constraint_handler_s function sets the runtime-constraint
+ *    handler to be handler. The runtime-constraint handler is the function to
+ *    be called when a library function detects a runtime-constraint
+ *   order:
+ *        1.    A pointer to a character string describing the
+ *              runtime-constraint violation.
+ *        2.    A null pointer or a pointer to an implementation defined
+ *              object.
+ *        3.    If the function calling the handler has a return type declared
+ *              as errno_t, the return value of the function is passed.
+ *              Otherwise, a positive value of type errno_t is passed.
+ *    The implementation has a default constraint handler that is used if no
+ *    calls to the set_constraint_handler_s function have been made. The
+ *    behavior of the default handler is implementation-defined, and it may
+ *    cause the program to exit or abort.  If the handler argument to
+ *    set_constraint_handler_s is a null pointer, the implementation default
+ *    handler becomes the current constraint handler.
+ *
+ * SPECIFIED IN
+ *    ISO/IEC JTC1 SC22 WG14 N1172, Programming languages, environments
+ *    and system software interfaces, Extensions to the C Library,
+ *    Part I: Bounds-checking interfaces
+ *
+ * INPUT PARAMETERS
+ *   *msg            Pointer to the message describing the error
+ *
+ *   *ptr            Pointer to aassociated data.  Can be NULL.
+ *
+ *    error          The error code encountered.
+ *
+ * OUTPUT PARAMETERS
+ *    none
+ *
+ * RETURN VALUE
+ *    none
+ *
+ * ALSO SEE
+ *    set_str_constraint_handler_s()
+ */
+constraint_handler_t
+set_mem_constraint_handler_s (constraint_handler_t handler)
+{
+    constraint_handler_t prev_handler = mem_handler;
+    if (NULL == handler) {
+        mem_handler = sl_default_handler;
+    } else {
+        mem_handler = handler;
+    }
+    return prev_handler;
+}
+EXPORT_SYMBOL(set_mem_constraint_handler_s);
+
+
+/**
+ * NAME
+ *    invoke_safe_mem_constraint_handler
+ *
+ * SYNOPSIS
+ *    #include "safe_mem_constraint.h"
+ *    void
+ *    invoke_safe_mem_constraint_handler(const char *msg,
+ *                                void *ptr,
+ *                                errno_t error)
+ *
+ * DESCRIPTION
+ *    Invokes the currently set constraint handler or the default.
+ *
+ * INPUT PARAMETERS
+ *   *msg            Pointer to the message describing the error
+ *
+ *   *ptr            Pointer to aassociated data.  Can be NULL.
+ *
+ *    error          The error code encountered.
+ *
+ * OUTPUT PARAMETERS
+ *    none
+ *
+ * RETURN VALUE
+ *    none
+ *
+ */
+void
+invoke_safe_mem_constraint_handler (const char *msg,
+                                    void *ptr,
+                                    errno_t error)
+{
+    if (NULL != mem_handler) {
+        mem_handler(msg, ptr, error);
+    } else {
+        sl_default_handler(msg, ptr, error);
+    }
+}

casadm/safeclib/safe_mem_constraint.h

@@ -0,0 +1,46 @@
+/*------------------------------------------------------------------
+ * safe_mem_constraint.h
+ *
+ * October 2008, Bo Berry
+ *
+ * Copyright (c) 2008, 2009 by Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#ifndef __SAFE_MEM_CONSTRAINT_H__
+#define __SAFE_MEM_CONSTRAINT_H__
+
+#include "safeclib_private.h"
+
+/*
+ * Function used by the libraries to invoke the registered
+ * runtime-constraint handler. Always needed.
+ */
+extern void invoke_safe_mem_constraint_handler(
+                           const char *msg,
+                           void *ptr,
+                           errno_t error);
+
+#endif /* __SAFE_MEM_CONSTRAINT_H__ */

casadm/safeclib/safe_mem_lib.h

@@ -0,0 +1,57 @@
+/*------------------------------------------------------------------
+ * safe_mem_lib.h -- Safe C Library Memory APIs
+ *
+ * October 2008, Bo Berry
+ * Modified 2012, Jonathan Toppins <jtoppins@users.sourceforge.net>
+ *
+ * Copyright (c) 2008-2012 by Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#ifndef __SAFE_MEM_LIB_H__
+#define __SAFE_MEM_LIB_H__
+
+#include "safe_lib.h"
+
+#define RSIZE_MAX_MEM      ( 256UL << 20 )     /* 256MB */
+#define RSIZE_MAX_MEM16    ( RSIZE_MAX_MEM/2 )
+#define RSIZE_MAX_MEM32    ( RSIZE_MAX_MEM/4 )
+
+/* set memory constraint handler */
+extern constraint_handler_t
+set_mem_constraint_handler_s(constraint_handler_t handler);
+
+/* copy memory */
+extern errno_t memcpy_s(void *dest, rsize_t dmax,
+                        const void *src, rsize_t slen);
+
+/* set bytes */
+extern errno_t memset_s(void *dest, rsize_t dmax, uint8_t value);
+
+/* move memory, including overlapping memory */
+extern errno_t memmove_s(void *dest, rsize_t  dmax,
+                          const void *src, rsize_t slen);
+
+#endif  /* __SAFE_MEM_LIB_H__ */

casadm/safeclib/safe_str_constraint.c

@@ -0,0 +1,146 @@
+/*------------------------------------------------------------------
+ * safe_str_constraint.c
+ *
+ * October 2008, Bo Berry
+ * 2012, Jonathan Toppins <jtoppins@users.sourceforge.net>
+ *
+ * Copyright (c) 2008, 2009, 2012 Cisco Systems
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#include "safeclib_private.h"
+#include "safe_str_constraint.h"
+#include "safe_str_lib.h"
+
+
+static constraint_handler_t str_handler = NULL;
+
+
+/**
+ * NAME
+ *    set_str_constraint_handler_s
+ *
+ * SYNOPSIS
+ *    #include "safe_str_lib.h"
+ *    constraint_handler_t
+ *    set_str_constraint_handler_s(constraint_handler_t handler)
+ *
+ * DESCRIPTION
+ *    The set_str_constraint_handler_s function sets the runtime-constraint
+ *    handler to be handler. The runtime-constraint handler is the function to
+ *    be called when a library function detects a runtime-constraint
+ *    violation. Only the most recent handler registered with
+ *    set_str_constraint_handler_s is called when a runtime-constraint
+ *    violation occurs.
+ *    When the handler is called, it is passed the following arguments in
+ *    the following order:
+ *        1.    A pointer to a character string describing the
+ *              runtime-constraint violation.
+ *        2.    A null pointer or a pointer to an implementation defined
+ *              object.
+ *        3.    If the function calling the handler has a return type declared
+ *              as errno_t, the return value of the function is passed.
+ *              Otherwise, a positive value of type errno_t is passed.
+ *    The implementation has a default constraint handler that is used if no
+ *    calls to the set_constraint_handler_s function have been made. The
+ *    behavior of the default handler is implementation-defined, and it may
+ *    cause the program to exit or abort.  If the handler argument to
+ *    set_constraint_handler_s is a null pointer, the implementation default
+ *    handler becomes the current constraint handler.
+ *
+ * SPECIFIED IN
+ *    ISO/IEC JTC1 SC22 WG14 N1172, Programming languages, environments
+ *    and system software interfaces, Extensions to the C Library,
+ *    Part I: Bounds-checking interfaces
+ *
+ * INPUT PARAMETERS
+ *   *msg            Pointer to the message describing the error
+ *
+ *   *ptr            Pointer to aassociated data.  Can be NULL.
+ *
+ *    error          The error code encountered.
+ *
+ * OUTPUT PARAMETERS
+ *    none
+ *
+ * RETURN VALUE
+ *    none
+ *
+ * ALSO SEE
+ *    set_str_constraint_handler_s()
+ */
+constraint_handler_t
+set_str_constraint_handler_s (constraint_handler_t handler)
+{
+    constraint_handler_t prev_handler = str_handler;
+    if (NULL == handler) {
+        str_handler = sl_default_handler;
+    } else {
+        str_handler = handler;
+    }
+    return prev_handler;
+}
+EXPORT_SYMBOL(set_str_constraint_handler_s);
+
+
+/**
+ * NAME
+ *    invoke_safe_str_constraint_handler
+ *
+ * SYNOPSIS
+ *    #include "safe_str_constraint.h"
+ *    void
+ *    invoke_safe_str_constraint_handler (const char *msg,
+ *                                void *ptr,
+ *                                errno_t error)
+ *
+ * DESCRIPTION
+ *    Invokes the currently set constraint handler or the default.
+ *
+ * INPUT PARAMETERS
+ *   *msg            Pointer to the message describing the error
+ *
+ *   *ptr            Pointer to aassociated data.  Can be NULL.
+ *
+ *    error          The error code encountered.
+ *
+ * OUTPUT PARAMETERS
+ *    none
+ *
+ * RETURN VALUE
+ *    none
+ *
+ */
+void
+invoke_safe_str_constraint_handler (const char *msg,
+                                    void *ptr,
+                                    errno_t error)
+{
+    if (NULL != str_handler) {
+        str_handler(msg, ptr, error);
+    } else {
+        sl_default_handler(msg, ptr, error);
+    }
+}

casadm/safeclib/safe_str_constraint.h

@@ -0,0 +1,64 @@
+/*------------------------------------------------------------------
+ * safe_str_constraint.h
+ *
+ * October 2008, Bo Berry
+ *
+ * Copyright (c) 2008-2011 Cisco Systems
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#ifndef __SAFE_STR_CONSTRAINT_H__
+#define __SAFE_STR_CONSTRAINT_H__
+
+#include "safeclib_private.h"
+
+/*
+ * Function used by the libraries to invoke the registered
+ * runtime-constraint handler. Always needed.
+ */
+extern void invoke_safe_str_constraint_handler(
+                           const char *msg,
+                           void *ptr,
+                           errno_t error);
+
+
+/*
+ * Safe C Lib internal string routine to consolidate error handling
+ */
+static inline void handle_error(char *orig_dest, rsize_t orig_dmax,
+                                char *err_msg, errno_t err_code)
+{
+#ifdef SAFECLIB_STR_NULL_SLACK
+    /* null string to eliminate partial copy */
+    while (orig_dmax) { *orig_dest = '\0'; orig_dmax--; orig_dest++; }
+#else
+    *orig_dest = '\0';
+#endif
+
+    invoke_safe_str_constraint_handler(err_msg, NULL, err_code);
+    return;
+}
+
+#endif   /* __SAFE_STR_CONSTRAINT_H__ */

casadm/safeclib/safe_str_lib.h

@@ -0,0 +1,71 @@
+/*------------------------------------------------------------------
+ * safe_str_lib.h -- Safe C Library String APIs
+ *
+ * October 2008, Bo Berry
+ *
+ * Copyright (c) 2008-2011, 2013 by Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#ifndef __SAFE_STR_LIB_H__
+#define __SAFE_STR_LIB_H__
+
+#include "safe_lib.h"
+
+/*
+ * The shortest string is a null string!!
+ */
+#define RSIZE_MIN_STR      ( 1 )
+
+/* maximum sring length */
+#define RSIZE_MAX_STR      ( 4UL << 10 )      /* 4KB */
+
+
+/* The makeup of a password */
+#define SAFE_STR_MIN_LOWERCASE     ( 2 )
+#define SAFE_STR_MIN_UPPERCASE     ( 2 )
+#define SAFE_STR_MIN_NUMBERS       ( 1 )
+#define SAFE_STR_MIN_SPECIALS      ( 1 )
+
+#define SAFE_STR_PASSWORD_MIN_LENGTH   ( 6 )
+#define SAFE_STR_PASSWORD_MAX_LENGTH   ( 32 )
+
+/* set string constraint handler */
+extern constraint_handler_t
+set_str_constraint_handler_s(constraint_handler_t handler);
+
+/* fitted string copy */
+extern errno_t
+strncpy_s(char *dest, rsize_t dmax, const char *src, rsize_t slen);
+
+/* string length */
+extern rsize_t
+strnlen_s (const char *s, rsize_t smax);
+
+/* string tokenizer */
+extern char *
+strtok_s(char *s1, rsize_t *s1max, const char *src, char **ptr);
+
+#endif   /* __SAFE_STR_LIB_H__ */

casadm/safeclib/safe_types.h

@@ -0,0 +1,59 @@
+/*------------------------------------------------------------------
+ * safe_types.h - C99 std types & defs or Linux kernel equivalents
+ *
+ * March 2007, Bo Berry
+ * Modified 2012, Jonathan Toppins <jtoppins@users.sourceforge.net>
+ *
+ * Copyright (c) 2007-2013 by Cisco Systems, Inc
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#ifndef __SAFE_TYPES_H__
+#define __SAFE_TYPES_H__
+
+#ifdef __KERNEL__
+/* linux kernel environment */
+
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+
+/* errno_t isn't defined in the kernel */
+typedef int errno_t;
+
+#else
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <inttypes.h>
+#include <stdint.h>
+#include <errno.h>
+
+typedef int errno_t;
+
+#include <stdbool.h>
+
+#endif /* __KERNEL__ */
+#endif /* __SAFE_TYPES_H__ */

casadm/safeclib/safeclib_private.h

@@ -0,0 +1,93 @@
+/*------------------------------------------------------------------
+ * safeclib_private.h - Internal library references
+ *
+ * 2012, Jonathan Toppins <jtoppins@users.sourceforge.net>
+ *
+ * Copyright (c) 2012, 2013 by Cisco Systems, Inc
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#ifndef __SAFECLIB_PRIVATE_H__
+#define __SAFECLIB_PRIVATE_H__
+
+#ifdef __KERNEL__
+/* linux kernel environment */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/ctype.h>
+
+#define RCNEGATE(x)  ( -(x) )
+
+#define slprintf(...) printk(KERN_EMERG __VA_ARGS__)
+#define slabort()
+#ifdef DEBUG
+#define sldebug_printf(...) printk(KERN_DEBUG __VA_ARGS__)
+#endif
+
+#else  /* !__KERNEL__ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+#ifdef STDC_HEADERS
+# include <ctype.h>
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif
+#ifdef HAVE_LIMITS_H
+# include <limits.h>
+#endif
+
+#define EXPORT_SYMBOL(sym)
+#define RCNEGATE(x)  (x)
+
+#define slprintf(...) fprintf(stderr, __VA_ARGS__)
+#define slabort()     abort()
+#ifdef DEBUG
+#define sldebug_printf(...) printf(__VA_ARGS__)
+#endif
+
+#endif /* __KERNEL__ */
+
+#ifndef sldebug_printf
+#define sldebug_printf(...)
+#endif
+
+#include "safe_lib.h"
+
+#endif /* __SAFECLIB_PRIVATE_H__ */

casadm/safeclib/strncpy_s.c

@@ -0,0 +1,238 @@
+/*------------------------------------------------------------------
+ * strncpy_s.c
+ *
+ * October 2008, Bo Berry
+ *
+ * Copyright (c) 2008-2011 by Cisco Systems, Inc
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#include "safeclib_private.h"
+#include "safe_str_constraint.h"
+#include "safe_str_lib.h"
+
+
+/*
+ * NAME
+ *    strncpy_s
+ *
+ * SYNOPSIS
+ *    #include "safe_str_lib.h"
+ *    errno_t
+ *    strncpy_s(char *dest, rsize_t dmax, const char *src, rsize_t slen)
+ *
+ * DESCRIPTION
+ *    The strncpy_s function copies not more than slen successive characters
+ *    (characters that follow a null character are not copied) from the
+ *    array pointed to by src to the array pointed to by dest. If no null
+ *    character was copied from src, then dest[n] is set to a null character.
+ *
+ *    All elements following the terminating null character (if any)
+ *    written by strncpy_s in the array of dmax characters pointed to
+ *    by dest take on the null value when strncpy_s returns.
+ *
+ * Specicified in:
+ *    ISO/IEC TR 24731-1, Programming languages, environments
+ *    and system software interfaces, Extensions to the C Library,
+ *    Part I: Bounds-checking interfaces
+ *
+ * INPUT PARAMETERS
+ *    dest      pointer to string that will be replaced by src.
+ *              The resulting string is null terminated.
+ *
+ *    dmax      restricted maximum length of the resulting dest,
+ *              including the null
+ *
+ *    src       pointer to the string that will be copied
+ *              to string dest
+ *
+ *    slen      the maximum number of characters to copy from src
+ *
+ * OUTPUT PARAMETERS
+ *    dest      updated with src string
+ *
+ * RUNTIME CONSTRAINTS
+ *    Neither dmax nor slen shall be equal to zero.
+ *    Neither dmax nor slen shall be equal zero.
+ *    Neither dmax nor slen shall be greater than RSIZE_MAX_STR.
+ *    If slen is either greater than or equal to dmax, then dmax
+ *     should be more than strnlen_s(src,dmax)
+ *    Copying shall not take place between objects that overlap.
+ *    If there is a runtime-constraint violation, then if dest
+ *       is not a null pointer and dmax greater than RSIZE_MAX_STR,
+ *       then strncpy_s nulls dest.
+ *
+ * RETURN VALUE
+ *    EOK        successful operation, the characters in src were copied
+ *                  to dest and the result is null terminated.
+ *    ESNULLP    NULL pointer
+ *    ESZEROL    zero length
+ *    ESLEMAX    length exceeds max limit
+ *    ESOVRLP    strings overlap
+ *    ESNOSPC    not enough space to copy src
+ *
+ * ALSO SEE
+ *    strcat_s(), strncat_s(), strcpy_s()
+ *-
+ */
+errno_t
+strncpy_s (char *dest, rsize_t dmax, const char *src, rsize_t slen)
+{
+    rsize_t orig_dmax;
+    char *orig_dest;
+    const char *overlap_bumper;
+
+    if (dest == NULL) {
+        invoke_safe_str_constraint_handler("strncpy_s: dest is null",
+                   NULL, ESNULLP);
+        return RCNEGATE(ESNULLP);
+    }
+
+    if (dmax == 0) {
+        invoke_safe_str_constraint_handler("strncpy_s: dmax is 0",
+                   NULL, ESZEROL);
+        return RCNEGATE(ESZEROL);
+    }
+
+    if (dmax > RSIZE_MAX_STR) {
+        invoke_safe_str_constraint_handler("strncpy_s: dmax exceeds max",
+                   NULL, ESLEMAX);
+        return RCNEGATE(ESLEMAX);
+    }
+
+    /* hold base in case src was not copied */
+    orig_dmax = dmax;
+    orig_dest = dest;
+
+    if (src == NULL) {
+        handle_error(orig_dest, orig_dmax, "strncpy_s: "
+                     "src is null",
+                     ESNULLP);
+        return RCNEGATE(ESNULLP);
+    }
+
+    if (slen == 0) {
+        handle_error(orig_dest, orig_dmax, "strncpy_s: "
+                     "slen is zero",
+                     ESZEROL);
+        return RCNEGATE(ESZEROL);
+    }
+
+    if (slen > RSIZE_MAX_STR) {
+        handle_error(orig_dest, orig_dmax, "strncpy_s: "
+                     "slen exceeds max",
+                     ESLEMAX);
+        return RCNEGATE(ESLEMAX);
+    }
+
+
+   if (dest < src) {
+       overlap_bumper = src;
+
+        while (dmax > 0) {
+            if (dest == overlap_bumper) {
+                handle_error(orig_dest, orig_dmax, "strncpy_s: "
+                        "overlapping objects",
+                        ESOVRLP);
+                return RCNEGATE(ESOVRLP);
+            }
+
+	    if (slen == 0) {
+                /*
+                 * Copying truncated to slen chars.  Note that the TR says to
+                 * copy slen chars plus the null char.  We null the slack.
+                 */
+#ifdef SAFECLIB_STR_NULL_SLACK
+                while (dmax) { *dest = '\0'; dmax--; dest++; }
+#else
+                *dest = '\0';
+#endif
+                return RCNEGATE(EOK);
+            }
+
+            *dest = *src;
+            if (*dest == '\0') {
+#ifdef SAFECLIB_STR_NULL_SLACK
+                /* null slack */
+                while (dmax) { *dest = '\0'; dmax--; dest++; }
+#endif
+                return RCNEGATE(EOK);
+            }
+
+            dmax--;
+            slen--;
+            dest++;
+            src++;
+        }
+
+    } else {
+        overlap_bumper = dest;
+
+        while (dmax > 0) {
+            if (src == overlap_bumper) {
+                handle_error(orig_dest, orig_dmax, "strncpy_s: "
+                        "overlapping objects",
+                        ESOVRLP);
+                return RCNEGATE(ESOVRLP);
+            }
+
+	    if (slen == 0) {
+                /*
+                 * Copying truncated to slen chars.  Note that the TR says to
+                 * copy slen chars plus the null char.  We null the slack.
+                 */
+#ifdef SAFECLIB_STR_NULL_SLACK
+                while (dmax) { *dest = '\0'; dmax--; dest++; }
+#else
+                *dest = '\0';
+#endif
+                return RCNEGATE(EOK);
+            }
+
+            *dest = *src;
+            if (*dest == '\0') {
+#ifdef SAFECLIB_STR_NULL_SLACK
+                /* null slack */
+                while (dmax) { *dest = '\0'; dmax--; dest++; }
+#endif
+                return RCNEGATE(EOK);
+            }
+
+            dmax--;
+            slen--;
+            dest++;
+            src++;
+        }
+    }
+
+    /*
+     * the entire src was not copied, so zero the string
+     */
+    handle_error(orig_dest, orig_dmax, "strncpy_s: not enough "
+                 "space for src",
+                 ESNOSPC);
+    return RCNEGATE(ESNOSPC);
+}
+EXPORT_SYMBOL(strncpy_s);

casadm/safeclib/strnlen_s.c

@@ -0,0 +1,117 @@
+/*------------------------------------------------------------------
+ * strnlen_s.c
+ *
+ * October 2008, Bo Berry
+ *
+ * Copyright (c) 2008-2011 by Cisco Systems, Inc
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#include "safeclib_private.h"
+#include "safe_str_constraint.h"
+#include "safe_str_lib.h"
+
+
+/**
+ * NAME
+ *    strnlen_s
+ *
+ * SYNOPSIS
+ *    #include "safe_str_lib.h"
+ *    rsize_t
+ *    strnlen_s(const char *dest, rsize_t dmax)
+ *
+ * DESCRIPTION
+ *    The strnlen_s function computes the length of the string pointed
+ *    to by dest.
+ *
+ * SPECIFIED IN
+ *    ISO/IEC TR 24731-1, Programming languages, environments
+ *    and system software interfaces, Extensions to the C Library,
+ *    Part I: Bounds-checking interfaces
+ *
+ * INPUT PARAMETERS
+ *    dest      pointer to string
+ *
+ *    dmax      restricted maximum length (including null character).
+ *
+ * OUTPUT PARAMETERS
+ *    none
+ *
+ * RUNTIME CONSTRAINTS
+ *    dest shall not be a null pointer
+ *    dmax shall not be greater than RSIZE_MAX_STR
+ *    dmax shall not equal zero
+ *    null character shall be in first dmax characters of dest
+ *
+ * RETURN VALUE
+ *    The function returns the string length, excluding  the terminating
+ *    null character.  If dest is NULL, then strnlen_s returns 0.
+ *
+ *    Otherwise, the strnlen_s function returns the number of characters
+ *    that precede the terminating null character.
+ *    At most the first dmax characters of dest are accessed by strnlen_s.
+ *
+ * ALSO SEE
+ *    strnterminate_s()
+ *
+ */
+rsize_t
+strnlen_s (const char *dest, rsize_t dmax)
+{
+    rsize_t count;
+    rsize_t orig_dmax = dmax;
+
+    if (dest == NULL) {
+        return RCNEGATE(0);
+    }
+
+    if (dmax == 0) {
+        invoke_safe_str_constraint_handler("strnlen_s: dmax is 0",
+                   NULL, ESZEROL);
+        return RCNEGATE(0);
+    }
+
+    if (dmax > RSIZE_MAX_STR) {
+        invoke_safe_str_constraint_handler("strnlen_s: dmax exceeds max",
+                   NULL, ESLEMAX);
+        return RCNEGATE(0);
+    }
+
+    count = 0;
+    while (*dest && dmax) {
+        count++;
+        dmax--;
+        dest++;
+    }
+    if (count == orig_dmax) {
+        invoke_safe_str_constraint_handler("strnlen_s: string length exceeds dmax",
+					   NULL, ESLEMAX);
+        return RCNEGATE(0);
+    }
+
+    return RCNEGATE(count);
+}
+EXPORT_SYMBOL(strnlen_s);

casadm/safeclib/strtok_s.c

@@ -0,0 +1,323 @@
+/*------------------------------------------------------------------
+ * strtok_s.c
+ *
+ * October 2008, Bo Berry
+ *
+ * Copyright (c) 2008-2011 by Cisco Systems, Inc
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#include "safeclib_private.h"
+#include "safe_str_constraint.h"
+#include "safe_str_lib.h"
+
+
+/**
+ * NAME
+ *    strtok_s
+ *
+ * SYNOPSIS
+ *    #include "safe_str_lib.h"
+ *    char *
+ *    strtok_s(char *dest, rsize_t *dmax, char *src, char **ptr)
+ *
+ * DESCRIPTION
+ *    A sequence of calls to the strtok_s function breaks the string
+ *    pointed to by dest into a sequence of tokens, each of which is
+ *    delimited by a character from the string pointed to by src. The
+ *    fourth argument points to a caller-provided char pointer into
+ *    which the strtok_s function stores information necessary for
+ *    it to continue scanning the same string.
+ *
+ *    The first call in a sequence has a non-null first argument and
+ *    dmax points to an object whose value is the number of elements
+ *    in the character array pointed to by the first argument. The
+ *    first call stores an initial value in the object pointed to by
+ *    ptr and updates the value pointed to by dmax to reflect the
+ *    number of elements that remain in relation to ptr. Subsequent
+ *    calls in the sequence have a null first argument and the objects
+ *    pointed to by dmax and ptr are required to have the values
+ *    stored by the previous call in the sequence, which are then
+ *    updated. The separator string pointed to by src may be different
+ *    from call to call.
+ *
+ *    The first call in the sequence searches the string pointed to
+ *    by dest for the first character that is not contained in the
+ *    current separator string pointed to by src. If no such character
+ *    is found, then there are no tokens in the string pointed to
+ *    by dest and the strtok_s function returns a null pointer. If
+ *    such a character is found, it is the start of the first token.
+ *
+ *    The strtok_s function then searches from there for the first
+ *    character in dest that is contained in the current separator
+ *    string. If no such character is found, the current token
+ *    extends to the end of the string pointed to by dest, and
+ *    subsequent searches in the same string for a token return
+ *    a null pointer. If such a character is found, it is
+ *    overwritten by a null character, which terminates the
+ *    current token.
+ *
+ *    In all cases, the strtok_s function stores sufficient information
+ *    in the pointer pointed to by ptr so that subsequent calls,
+ *    with a null pointer for dest and the unmodified pointer value
+ *    for ptr, shall start searching just past the element overwritten
+ *    by a null character (if any).
+ *
+ * SPECIFIED IN
+ *    ISO/IEC TR 24731-1, Programming languages, environments
+ *    and system software interfaces, Extensions to the C Library,
+ *    Part I: Bounds-checking interfaces
+ *
+ * INPUT PARAMETERS
+ *    dest      pointer to string to tokenize
+ *
+ *    dmax      restricted maximum length of dest string
+ *
+ *    src       pointer to delimiter string (len < 255)
+ *
+ *    ptr       returned pointer to token
+ *
+ * OUTPUT PARAMETERS
+ *    dmax      update length
+ *
+ *    ptr       update pointer to token
+ *
+ * RUNTIME CONSTRAINTS
+ *    src shall not be a null pointer.
+ *    ptr shall not be a null pointer.
+ *    dmax shall not be a null pointer.
+ *    *dmax shall not be 0.
+ *
+ *    If dest is a null pointer, then *ptr shall not be a null pointer.
+ *
+ *    dest must not be unterminated.
+ *
+ *    The value of *dmax shall not be greater than RSIZE_MAX_STR. The
+ *    end of the token found shall occur within the first *dmax
+ *    characters of dest for the first call, and shall occur within
+ *    the first *dmax characters of where searching resumes on
+ *    subsequent calls.
+ *
+ * RETURN VALUE
+ *     The strtok_s function returns a pointer to the first character
+ *     of a token; or a null pointer if there is no token or there
+ *     is a runtime-constraint violation.
+ *
+ *     EOK
+ *     ESNULLP     NULL pointer
+ *     ESZEROL     zero length
+ *     ESLEMAX     length exceeds max limit
+ *     ESUNTERM    unterminated string
+ *
+ * EXAMPLES
+ * [1] Sequencial strtok_s() calls to tokenize a string
+ *
+ *    String to tokenize str1 = ",.:*one,two;three,;four*.*.five-six***"
+ *           len=38
+ *    String of delimiters str2 = ",.;*"
+ *
+ *    p2tok = strtok_s(str1, &len, str2, &p2str);
+ *    token -one-  remaining -two;three,;four*.*.five-six***- len=30
+ *
+ *    p2tok = strtok_s(NULL, &len, str2, &p2str);
+ *    token -two-  remaining -three,;four*.*.five-six***- len=26
+ *
+ *    p2tok = strtok_s(NULL, &len, str2, &p2str);
+ *    token -three-  remaining -;four*.*.five-six***- len=20
+ *
+ *    p2tok = strtok_s(NULL, &len, str2, &p2str);
+ *    token -four-  remaining -.*.five-six***- len=14
+ *
+ *    p2tok = strtok_s(NULL, &len, str2, &p2str);
+ *    token -five-six-  remaining -**- len=2
+ *
+ *    p2tok = strtok_s(NULL, &len, str2, &p2str);
+ *    token -(null)-  remaining -**- len=0
+ *
+ *
+ * [2] While loop with same entry data as [1]
+ *
+ *     p2tok = str1;
+ *     while (p2tok && len) {
+ *         p2tok = strtok_s(NULL, &len, str2, &p2str);
+ *         printf("  token --   remaining --  len=0 \n",
+ *                 p2tok, p2str, (int)len );
+ *     }
+ *
+ *-
+ */
+char *
+strtok_s(char *dest, rsize_t *dmax, const char *src, char **ptr)
+{
+
+/*
+ * CONFIGURE: The spec does not call out a maximum for the src
+ * string, so one is defined here.
+ */
+#define  STRTOK_DELIM_MAX_LEN   ( 16 )
+
+
+    const char *pt;
+    char *ptoken;
+    rsize_t dlen;
+    rsize_t slen;
+
+    if (dmax == NULL) {
+        invoke_safe_str_constraint_handler("strtok_s: dmax is NULL",
+                   NULL, ESNULLP);
+        return (NULL);
+    }
+
+    if (*dmax == 0) {
+        invoke_safe_str_constraint_handler("strtok_s: dmax is 0",
+                   NULL, ESZEROL);
+        return (NULL);
+    }
+
+    if (*dmax > RSIZE_MAX_STR) {
+        invoke_safe_str_constraint_handler("strtok_s: dmax exceeds max",
+                   NULL, ESLEMAX);
+        return (NULL);
+    }
+
+    if (src == NULL) {
+        invoke_safe_str_constraint_handler("strtok_s: src is null",
+                   NULL, ESNULLP);
+        return (NULL);
+    }
+
+    if (ptr == NULL) {
+        invoke_safe_str_constraint_handler("strtok_s: ptr is null",
+                   NULL, ESNULLP);
+        return (NULL);
+    }
+
+    /* if the source was NULL, use the tokenizer context */
+    if (dest == NULL) {
+        dest = *ptr;
+    }
+
+    /*
+     * scan dest for a delimiter
+     */
+    dlen = *dmax;
+    ptoken = NULL;
+    while (*dest != '\0' && !ptoken) {
+
+        if (dlen == 0) {
+            *ptr = NULL;
+            invoke_safe_str_constraint_handler(
+                      "strtok_s: dest is unterminated",
+                       NULL, ESUNTERM);
+            return (NULL);
+        }
+
+        /*
+         * must scan the entire delimiter list
+         * ISO should have included a delimiter string limit!!
+         */
+        slen = STRTOK_DELIM_MAX_LEN;
+        pt = src;
+        while (*pt != '\0') {
+
+            if (slen == 0) {
+                *ptr = NULL;
+                invoke_safe_str_constraint_handler(
+                          "strtok_s: src is unterminated",
+                           NULL, ESUNTERM);
+                return (NULL);
+            }
+            slen--;
+
+            if (*dest == *pt) {
+                ptoken = NULL;
+                break;
+            } else {
+                pt++;
+                ptoken = dest;
+            }
+        }
+        dest++;
+        dlen--;
+    }
+
+    /*
+     * if the beginning of a token was not found, then no
+     * need to continue the scan.
+     */
+    if (ptoken == NULL) {
+        *dmax = dlen;
+        return (ptoken);
+    }
+
+    /*
+     * Now we need to locate the end of the token
+     */
+    while (*dest != '\0') {
+
+        if (dlen == 0) {
+            *ptr = NULL;
+            invoke_safe_str_constraint_handler(
+                      "strtok_s: dest is unterminated",
+                       NULL, ESUNTERM);
+            return (NULL);
+        }
+
+        slen = STRTOK_DELIM_MAX_LEN;
+        pt = src;
+        while (*pt != '\0') {
+
+            if (slen == 0) {
+                *ptr = NULL;
+                invoke_safe_str_constraint_handler(
+                          "strtok_s: src is unterminated",
+                           NULL, ESUNTERM);
+                return (NULL);
+            }
+            slen--;
+
+            if (*dest == *pt) {
+                /*
+                 * found a delimiter, set to null
+                 * and return context ptr to next char
+                 */
+                *dest = '\0';
+                *ptr = (dest + 1);  /* return pointer for next scan */
+                *dmax = dlen - 1;   /* account for the nulled delimiter */
+                return (ptoken);
+            } else {
+                /*
+                 * simply scanning through the delimiter string
+                 */
+                pt++;
+            }
+        }
+        dest++;
+        dlen--;
+    }
+
+    *dmax = dlen;
+    return (ptoken);
+}

casadm/statistics_view.c

@@ -0,0 +1,117 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "cas_lib.h"
+#include "csvparse.h"
+#include "string.h"
+#include "statistics_view.h"
+#include "statistics_view_structs.h"
+#include "statistics_view_text.h"
+#include "statistics_view_csv.h"
+#include "statistics_view_raw_csv.h"
+
+static struct view_t *construct_view(int format, FILE *outfile)
+{
+	struct view_t *out = calloc(1, sizeof(*out));
+	if (!out) {
+		return NULL;
+	}
+
+	switch (format) {
+	case CSV:
+		out->process_row = csv_process_row;
+		out->end_input = csv_end_input;
+		out->construct = csv_construct;
+		out->destruct = csv_destruct;
+		break;
+	case RAW_CSV:
+		out->process_row = raw_csv_process_row;
+		out->end_input = raw_csv_end_input;
+		out->construct = raw_csv_construct;
+		out->destruct = raw_csv_destruct;
+		break;
+	case TEXT:
+		out->process_row = text_process_row;
+		out->end_input = text_end_input;
+		out->construct = text_construct;
+		out->destruct = text_destruct;
+		break;
+	}
+	out->outfile = outfile;
+	out->construct(out);
+	return out;
+};
+
+void destruct_view(struct view_t* v)
+{
+	v->destruct(v);
+	free(v);
+}
+
+#define RECOGNIZE_TYPE(t) if (!strcmp(cols[0], TAG_NAME(t))) {type = t;}
+
+int stat_print_intermediate(FILE *infile, FILE *outfile)
+{
+	char buf[MAX_STR_LEN] = { 0 };
+	while (fgets(buf, MAX_STR_LEN, infile)) {
+		fprintf(outfile, "%s", buf);
+	}
+
+	return 0;
+}
+int stat_format_output(FILE *infile, FILE *outfile, int format)
+{
+	int result = 0;
+	if (format == PLAIN) {
+		return stat_print_intermediate(infile, outfile);
+	}
+	struct view_t *view = construct_view(format, outfile);
+	if (!view) {
+		cas_printf(LOG_ERR, "Failed to allocate memory for output generator\n");
+		return 1;
+	}
+	CSVFILE *cf = csv_fopen(infile);
+	if (!cf) {
+		cas_printf(LOG_ERR, "Failed to allocate memory for CSV parser\n");
+		destruct_view(view);
+		return 1;
+	}
+
+	while (!csv_read(cf)) {
+		int num_cols = csv_count_cols(cf);
+		char **cols = csv_get_col_ptr(cf);
+		int type = UNDEFINED_TAG;
+		if (num_cols<1) {
+			continue;
+		}
+		RECOGNIZE_TYPE(FREEFORM);
+		RECOGNIZE_TYPE(KV_PAIR);
+		RECOGNIZE_TYPE(TABLE_ROW);
+		RECOGNIZE_TYPE(TABLE_HEADER);
+		RECOGNIZE_TYPE(TABLE_SECTION);
+		RECOGNIZE_TYPE(TREE_HEADER);
+		RECOGNIZE_TYPE(TREE_BRANCH);
+		RECOGNIZE_TYPE(TREE_LEAF);
+		RECOGNIZE_TYPE(RECORD);
+		RECOGNIZE_TYPE(DATA_SET);
+		if (type == UNDEFINED_TAG) {
+			cas_printf(LOG_ERR, "Unrecognized tag: %s\n", cols[0]);
+			result = 1;
+			break;
+		}
+		if (view->process_row(view, type, num_cols-1, cols+1)) {
+			cas_printf(LOG_ERR, "Failed to process row starting with: %s\n", cols[0]);
+			result = 1;
+			break;
+		}
+	}
+	view->end_input(view);
+
+	csv_close_nu(cf);
+	destruct_view(view);
+	return result;
+}

casadm/statistics_view.h

@@ -0,0 +1,79 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __STAT_VIEW
+#define __STAT_VIEW
+
+#include <stdio.h>
+
+/* each line of statistics may be assigned one fo these semantic formats,
+ * to which it will be converted */
+
+enum tag_type {
+	FREEFORM, /**< free form text */
+	KV_PAIR, /**< key value pair. sequence of kv-pairs will be aligned to
+		    columns, but no table-styleborders will be drawn */
+	TABLE_ROW, /**< regular table row */
+	TABLE_HEADER, /**< table header */
+	TABLE_SECTION, /**< first row of a table section */
+	DATA_SET, /**< set of records */
+	RECORD, /**< one record of data */
+	TREE_HEADER,
+	TREE_BRANCH,
+	TREE_LEAF,
+	UNDEFINED_TAG /**< occurence of this (or anything else out of
+			 above tags) will immediately break processing */
+};
+
+#define TAG(x) #x ","
+#define TAG_NAME(x) #x
+
+enum format {
+	TEXT, /**< output in text (formatted tables) form */
+	CSV, /**< output in csv form */
+	RAW_CSV, /**< csv form without transformations */
+	PLAIN /**<debug setting: print intermediate format */
+};
+
+/**
+ * @param infile - file in statistics_view intermediate format
+ * @param outfile - file to which statistics need to be printed
+ * @param format - desired format of an output.
+ */
+int stat_format_output(FILE *infile, FILE *outfile, int format);
+
+/*
+ * EXAMPLE OF AN INTERMEDIATE FORMAT:
+ *
+ * DATA_SET,
+ * RECORD,
+ * KV_PAIR,Cache Id, 1
+ * KV_PAIR,Cache Size, 5425999, [4KiB Blocks], 20.70, [GiB]
+ * KV_PAIR,Cache Occupancy, 1340, [4KiB Blocks], 0.01, [GiB],  0.02, [%]
+ * KV_PAIR,Metadata end offset, 79025
+ * KV_PAIR,Dirty cache lines, 0
+ * KV_PAIR,Clean cache lines, 1340
+ * KV_PAIR,Cache Device, /dev/sdb
+ * KV_PAIR,Core Devices, 15
+ * KV_PAIR,Write Policy, wt
+ * KV_PAIR,Eviction Policy, lru
+ * KV_PAIR,Cleaning Policy, alru
+ * KV_PAIR,Metadata Variant, "max (Maximum Performance, default)"
+ * KV_PAIR,Metadata Memory Footprint, 345.4, [MiB]
+ * KV_PAIR,Status, Running
+ * TABLE_HEADER,Request statistics,Count,%
+ * TABLE_SECTION,"Read hits", 180,  11.6
+ * TABLE_ROW,"Read partial misses", 1,   0.1
+ * TABLE_ROW,"Read full misses", 1370,  88.3
+ * TABLE_ROW,"Read total", 1551, 100.0
+ * TABLE_SECTION,"Write hits", 0,   0.0
+ * TABLE_ROW,"Write partial misses", 0,   0.0
+ * TABLE_ROW,"Write full misses", 0,   0.0
+ * TABLE_ROW,"Write total", 0,   0.0
+ *
+ * In each of output formats, first CSV column (referred to as a "tag")
+ * will be removed from output and used by formatter thread as a hint
+ */
+#endif /*__STAT_VIEW */

casadm/statistics_view_csv.c

@@ -0,0 +1,320 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "statistics_view.h"
+#include "statistics_view_structs.h"
+#include "statistics_view_csv.h"
+
+#define VALS_BUFFER_INIT_SIZE 10
+
+/**
+ * private data of CSV output formatter
+ */
+struct csv_out_prv {
+	int data_set; /* current data set number */
+	int record; /* current record number */
+	int column; /* current column number */
+	char **vals;
+	char **titles;
+	int max_vals;
+	int cur_val;
+	int max_titles;
+	int cur_title;
+};
+
+static inline int csv_is_first_record(struct view_t *this)
+{
+	return 1 == this->ctx.csv_prv->record;
+}
+
+static inline int csv_is_unit_string(const char *s)
+{
+	return NULL != s && '[' == s[0];
+}
+
+static void csv_output_column(struct view_t *this, const char *s)
+{
+	struct csv_out_prv *prv = this->ctx.csv_prv;
+
+	if (prv->column) {
+		putc(',', this->outfile);
+	}
+
+	if (strstr(s, ",")) {
+		fprintf(this->outfile, "\"%s\"", s);
+	} else {
+		fprintf(this->outfile, "%s", s);
+	}
+	prv->column++;
+}
+
+static char **csv_check_container(char **container, int *max_vals,
+					 int cur_val)
+{
+	if (!container) {
+		*max_vals = VALS_BUFFER_INIT_SIZE;
+		container = calloc(sizeof(char *), *max_vals);
+		if (!container) {
+			return NULL;
+		}
+	}
+
+	/* Resize val pointers array if needed */
+	if (*max_vals < cur_val) {
+		*max_vals = *max_vals * 2;
+		if (*max_vals < cur_val) {
+			*max_vals = cur_val;
+		}
+		container = realloc(container, sizeof(char *) * (*max_vals));
+		if (!container) {
+			return NULL;
+		}
+	}
+
+	return container;
+}
+
+static int csv_output_data(struct view_t *this, const char *s)
+{
+	struct csv_out_prv *prv = this->ctx.csv_prv;
+	if (csv_is_first_record(this)) {
+		prv->vals = csv_check_container(prv->vals, &prv->max_vals,
+						prv->cur_val+1);
+		if (!prv->vals) {
+			return 1;
+		}
+
+		/* Store value */
+		prv->vals[prv->cur_val] = strdup(s);
+		if (!prv->vals[prv->cur_val]) {
+			return 1;
+		}
+		prv->cur_val++;
+	} else {
+		csv_output_column(this, s);
+	}
+	return 0;
+}
+
+static int csv_add_column_subtitle(struct view_t *this, const char *s)
+{
+	struct csv_out_prv *prv = this->ctx.csv_prv;
+
+	prv->titles = csv_check_container(prv->titles, &prv->max_titles,
+					  prv->cur_title+1);
+	if (!prv->titles) {
+		return 1;
+	}
+
+	/* Store value */
+	prv->titles[prv->cur_title] = strdup(s);
+	if (!prv->titles[prv->cur_title]) {
+		return 1;
+	}
+	prv->cur_title++;
+
+	return 0;
+}
+
+static void csv_output_header(struct view_t *this, const char *title,
+				     const char *unit)
+{
+	static char buff[64];
+	if (unit) {
+		if (csv_is_unit_string(unit)) {
+			snprintf(buff, sizeof(buff), "%s %s", title, unit);
+		} else {
+			snprintf(buff, sizeof(buff), "%s [%s]", title, unit);
+		}
+		csv_output_column(this, buff);
+	} else {
+		csv_output_column(this, title);
+	}
+}
+
+static void csv_finish_record(struct view_t *this)
+{
+	struct csv_out_prv *prv = this->ctx.csv_prv;
+	int i;
+
+	if (prv->column) {
+		putc('\n', this->outfile);
+	}
+
+	/*
+	 * For first record we need to output stored data values
+	 */
+	if (csv_is_first_record(this)) {
+		prv->column = 0;
+		for (i = 0; i < prv->cur_val; ++i) {
+			csv_output_column(this, prv->vals[i]);
+		}
+		if (prv->column) {
+			putc('\n', this->outfile);
+		}
+	}
+	fflush(this->outfile);
+}
+
+static void csv_free_vals(struct view_t *this)
+{
+	struct csv_out_prv *prv = this->ctx.csv_prv;
+	int i;
+
+	if (prv->vals) {
+		for (i = 0; i < prv->cur_val; ++i) {
+			free(prv->vals[i]);
+		}
+		free(prv->vals);
+		prv->vals = NULL;
+		prv->cur_val = 0;
+		prv->max_vals = 0;
+	}
+}
+
+static void csv_free_titles(struct view_t *this)
+{
+	struct csv_out_prv *prv = this->ctx.csv_prv;
+	int i;
+
+	if (prv->titles) {
+		for (i = 0; i < prv->cur_title; ++i) {
+			free(prv->titles[i]);
+		}
+		free(prv->titles);
+		prv->titles = NULL;
+		prv->cur_title = 0;
+		prv->max_titles = 0;
+	}
+}
+
+int csv_process_row(struct view_t *this, int type, int num_fields, char *fields[])
+{
+	int i;
+	struct csv_out_prv *prv = this->ctx.csv_prv;
+	const char *unit = NULL;
+
+	switch (type) {
+	case DATA_SET:
+		if (prv->record) {
+			csv_finish_record(this);
+		}
+		csv_free_titles(this);
+		csv_free_vals(this);
+		if (prv->data_set) {
+			putc('\n', this->outfile);
+		}
+		if (num_fields > 0) {
+			fprintf(this->outfile, "%s\n", fields[0]);
+		}
+		prv->record = 0;
+		prv->data_set++;
+		break;
+	case RECORD:
+		if (prv->record) {
+			csv_finish_record(this);
+		}
+		prv->column = 0;
+		prv->record++;
+		break;
+
+	/*
+	 * For KV pair assume that values are interleaved
+	 * with units, so output every second value,
+	 * and use units to construct column headers.
+	 * For example:
+	 * KV_PAIR,Cache Size,10347970,[4KiB blocks],39.47,[GiB]
+	 * will result in:
+	 * data row:   10347970,39.47
+	 * header row: Cache Size [4KiB blocks],Cache Size [GiB]
+	 */
+	case KV_PAIR:
+		for (i = 1; i < num_fields; i += 2) {
+			if (csv_is_first_record(this)) {
+				if (i + 1 < num_fields) {
+					csv_output_header(this, fields[0],
+							  fields[i+1]);
+				} else {
+					csv_output_header(this, fields[0], NULL);
+				}
+			}
+			if (csv_output_data(this, fields[i])) {
+				return 1;
+			}
+		}
+		break;
+
+	/*
+	 * For table rows assume the following format:
+	 * TABLE_{ROW,SECTION},Title,value1,value2,value3,...,unit
+	 * This will result in:
+	 * data row:   value1,value2,value3,...
+	 * header row: Title [unit],Title [col1_title],Title [col2_title],...
+	 */
+	case TABLE_HEADER:
+		csv_free_titles(this);
+		csv_add_column_subtitle(this, "");
+		for (i = 2; i < num_fields; i++) {
+			if (csv_add_column_subtitle(this, fields[i])) {
+				return 1;
+			}
+		}
+		break;
+	case TABLE_SECTION:
+	case TABLE_ROW:
+		if (csv_is_first_record(this)) {
+			unit = NULL;
+			if (csv_is_unit_string(fields[num_fields-1])) {
+				unit = fields[num_fields-1];
+			}
+			csv_output_header(this, fields[0], unit);
+			for (i = 2; i < num_fields; i++) {
+				if (!csv_is_unit_string(prv->titles[i-1])) {
+					csv_output_header(this, fields[0],
+							  prv->titles[i-1]);
+				}
+			}
+		}
+		for (i = 1; i < num_fields; i++) {
+			if (!csv_is_unit_string(prv->titles[i-1])) {
+				if (csv_output_data(this, fields[i])) {
+					return 1;
+				}
+			}
+		}
+		break;
+	}
+	return 0;
+}
+
+int csv_end_input(struct view_t *this)
+{
+	csv_finish_record(this);
+	return 0;
+}
+int csv_construct(struct view_t *this)
+{
+	struct csv_out_prv *prv = calloc(sizeof(struct csv_out_prv), 1);
+
+	if (!prv) {
+		return 1;
+	}
+	this->ctx.csv_prv = prv;
+
+	return 0;
+}
+
+int csv_destruct(struct view_t *this)
+{
+	csv_free_vals(this);
+	csv_free_titles(this);
+	free(this->ctx.csv_prv);
+	return 0;
+}
+

casadm/statistics_view_csv.h

@@ -0,0 +1,18 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __STATS_VIEW_CSV
+#define __STATS_VIEW_CSV
+
+int csv_process_row(struct view_t *this, int type, int num_fields, char *fields[]);
+
+int csv_end_input(struct view_t *this);
+
+int csv_construct(struct view_t *this);
+
+int csv_destruct(struct view_t *this);
+
+
+#endif

casadm/statistics_view_raw_csv.c

@@ -0,0 +1,49 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "statistics_view.h"
+#include "statistics_view_structs.h"
+#include "statistics_view_raw_csv.h"
+
+#define VALS_BUFFER_INIT_SIZE 10
+
+int raw_csv_process_row(struct view_t *this, int type, int num_fields, char *fields[])
+{
+	int i;
+	if (RECORD != type && DATA_SET != type) {
+		for (i = 0; i < num_fields; i++) {
+			if (i) {
+				fputc(',', this->outfile);
+			}
+			if (strstr(fields[i], ",")) {
+				fprintf(this->outfile, "\"%s\"", fields[i]);
+			} else {
+				fprintf(this->outfile, "%s", fields[i]);
+			}
+		}
+		fputc('\n', this->outfile);
+
+	}
+	return 0;
+}
+
+int raw_csv_end_input(struct view_t *this)
+{
+	return 0;
+}
+int raw_csv_construct(struct view_t *this)
+{
+	return 0;
+}
+
+int raw_csv_destruct(struct view_t *this)
+{
+	return 0;
+}
+

casadm/statistics_view_raw_csv.h

@@ -0,0 +1,18 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __STATS_VIEW_RAW_CSV
+#define __STATS_VIEW_RAW_CSV
+
+int raw_csv_process_row(struct view_t *this, int type, int num_fields, char *fields[]);
+
+int raw_csv_end_input(struct view_t *this);
+
+int raw_csv_construct(struct view_t *this);
+
+int raw_csv_destruct(struct view_t *this);
+
+
+#endif

casadm/statistics_view_structs.h

@@ -0,0 +1,29 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __STATS_VIEW_S_H
+#define __STATS_VIEW_S_H
+
+struct csv_out_prv;
+
+struct text_out_prv;
+
+struct view_t
+{
+	FILE *outfile;
+	union {
+		struct csv_out_prv *csv_prv;
+		struct text_out_prv *text_prv;
+	} ctx;
+	/* type specific init */
+	int (*construct)(struct view_t *this);
+	int (*process_row)(struct view_t *this, int type, int num_fields, char *fields[]);
+	int (*end_input)(struct view_t *this);
+	int (*destruct)(struct view_t *this);
+};
+
+
+#endif
+

casadm/statistics_view_text.h

@@ -0,0 +1,18 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __STATS_VIEW_TEXT
+#define __STATS_VIEW_TEXT
+
+int text_process_row(struct view_t *this, int type, int num_fields, char *fields[]);
+
+int text_end_input(struct view_t *this);
+
+int text_construct(struct view_t *this);
+
+int text_destruct(struct view_t *this);
+
+
+#endif

casadm/table.c

@@ -0,0 +1,231 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include "table.h"
+#include "safeclib/safe_str_lib.h"
+#include <cas_ioctl_codes.h>
+
+#define MIN_STR_SIZE 64
+
+struct table_row
+{
+	int width;
+	int max_width;
+	char **cells;
+};
+
+
+struct table
+{
+	int width;
+	int height;
+	int max_height;
+	struct table_row *r;
+};
+
+struct table *table_alloc()
+{
+	struct table *out = malloc(sizeof(*out));
+	if (!out) {
+		return NULL;
+	}
+
+	out->width = 0;
+	out->height = 0;
+	out->max_height = 0;
+
+	out->r = 0;
+	return out;
+}
+
+void table_free(struct table *t)
+{
+	int i, j;
+	if (t->r) {
+		for (i = 0 ; i!= t->max_height; ++i) {
+			if (t->r[i].cells) {
+				for (j = 0 ; j!= t->r[i].max_width; ++j) {
+					if (t->r[i].cells[j]) {
+						free(t->r[i].cells[j]);
+					}
+				}
+				free(t->r[i].cells);
+			}
+		}
+		free(t->r);
+	}
+	free(t);
+}
+int table_reset(struct table *t)
+{
+	int i,j;
+	if (t->r) {
+		for (i = 0 ; i!= t->max_height; ++i) {
+			if (t->r[i].cells) {
+				for (j = 0 ; j!= t->r[i].max_width; ++j) {
+					if (t->r[i].cells[j]) {
+						(t->r[i].cells[j])[0] = 0;
+					}
+				}
+			}
+			t->r[i].width = 0;
+		}
+	}
+	t->width = 0;
+	t->height = 0;
+	return 0;
+}
+
+
+int maxi(int x, int y)
+{
+	if (x > y) {
+		return x;
+	} else {
+		return y;
+	}
+}
+
+char *table_get(struct table *t,int y, int x)
+{
+	static const char * empty="";
+	if (y >= t->height || x >= t->width) {
+		assert(0);
+		abort();
+		return (char*)empty;
+	}
+
+	/* within assigned boundaries but without allocated boundaries */
+	if (y >= t->max_height) {
+		return (char*)empty;
+	}
+
+	if (x >= t->r[y].max_width) {
+		return (char*)empty;
+	}
+
+	if (!t->r[y].cells) {
+		return (char*)empty;
+	}
+
+	if (!t->r[y].cells[x]) {
+		return (char*)empty;
+	}
+
+	return t->r[y].cells[x];
+}
+
+int table_set(struct table *t, int y, int x, char *c)
+{
+	int i;
+	int len = strnlen(c, MAX_STR_LEN);
+	if (len >= MAX_STR_LEN) {
+		return 1;
+	}
+
+	/* step 1: ensure that space for row y is allocated */
+	if (!t->r) {
+		t->r = calloc(sizeof(struct table_row), y + 1);
+		if (!t->r) {
+			return 1;
+		}
+		t->max_height = y + 1;
+	} else if (t->max_height <= y) {
+		struct table_row *tmp;
+		int new_m_h = t->max_height*2;
+		if (new_m_h <= y) {
+			new_m_h = y+1;
+		}
+
+		tmp = realloc(t->r, sizeof(struct table_row)*new_m_h);
+		if (!tmp) {
+			return 1;
+		}
+
+		t->r=tmp;
+		for (i = t->max_height; i!= new_m_h; ++i) {
+			t->r[i].width = t->r[i].max_width = 0;
+			t->r[i].cells = 0;
+		}
+		t->max_height = new_m_h;
+
+	} /* else everything is OK */
+
+	/* step 2: ensure that column x within row y is allocated */
+	if (!t->r[y].cells) {
+		t->r[y].cells = calloc(sizeof(char*), x + 1);
+		t->r[y].max_width = x + 1;
+	} else if (t->r[y].max_width <= x) {
+		char **tmp;
+		int new_m_w = t->r[y].max_width*2;
+		if (new_m_w <= x) {
+			new_m_w = x+1;
+		}
+
+		tmp = realloc(t->r[y].cells, sizeof(char*)*new_m_w);
+		if (!tmp) {
+			return 1;
+		}
+
+		t->r[y].cells = tmp;
+		memset(&tmp[t->r[y].max_width], 0,
+		       sizeof(char*)*(new_m_w-t->r[y].max_width));
+		t->r[y].max_width = new_m_w;
+	}
+
+	/* step 3: allocate space for string to be contained in cell */
+	if (t->r[y].cells[x] && len+1>MIN_STR_SIZE) {
+		char *tmp = realloc(t->r[y].cells[x], len+1);
+		if (!tmp) {
+			return 1;
+		}
+		t->r[y].cells[x] = tmp;
+
+	} else if (!t->r[y].cells[x]){
+		t->r[y].cells[x] = malloc(maxi(MIN_STR_SIZE,len+1));
+		if (!t->r[y].cells[x]) {
+			return 1;
+		}
+	}
+
+	/* step 4: actually overwrite contents of a cell */
+	strncpy_s(t->r[y].cells[x], len + 1, c, len);
+
+	/* step 5: update width and height of a table */
+
+	t->height = maxi(t->height, y + 1);
+	t->width = maxi(t->width, x + 1);
+	t->r[y].width = maxi(t->r[y].width, x + 1);
+	return 0;
+}
+
+/**
+ * get last available row of table that was added either via
+ */
+int table_get_width(struct table *t)
+{
+	return t->width;
+}
+
+int table_get_height(struct table *t)
+{
+	return t->height;
+}
+
+int table_set_height(struct table *t, int h)
+{
+	t->height = h;
+	return 0;
+}
+
+
+int table_set_width(struct table *t, int h)
+{
+	t->width = h;
+	return 0;
+}
+

casadm/table.h

@@ -0,0 +1,58 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+
+#ifndef __TABLE_H
+#define __TABLE_H
+
+struct table;
+
+/**
+ * setup "table" structure.
+ */
+struct table *table_alloc();
+
+/**
+ * deallocate table.
+ */
+void table_free(struct table *t);
+
+/**
+ * max value of two integers
+ */
+int maxi(int x, int y);
+
+/**
+ * retrieve a field of a table
+ */
+char *table_get(struct table *t,int y, int x);
+
+int table_set(struct table *t, int y, int x, char *c);
+
+/**
+ * reduce number of columns and rows to 0;
+ */
+int table_reset(struct table *t);
+
+/**
+ * get last available column of table that was added via table_set
+ */
+int table_get_width(struct table *t);
+
+/**
+ * get last available row of table that was added either via table_set or table_set_height
+ */
+int table_get_height(struct table *t);
+
+/**
+ * set height of a table (additional rows will contain empty strings
+ */
+int table_set_height(struct table *t, int h);
+/**
+ * set with of a table (additional rows will contain empty strings
+ */
+int table_set_width(struct table *t, int h);
+
+#endif

casadm/upgrade.c

@@ -0,0 +1,40 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include "cas_lib.h"
+#include "cas_lib_utils.h"
+#include <cas_ioctl_codes.h>
+
+extern cas_printf_t cas_printf;
+
+int upgrade_start()
+{
+	int fd;
+	struct kcas_upgrade cmd_info;
+
+	if ((fd = open_ctrl_device()) == -1) {
+		return -1;
+	}
+
+	if (run_ioctl_interruptible(fd, KCAS_IOCTL_UPGRADE, &cmd_info,
+				    "Starting upgrade", 0, OCF_CORE_ID_INVALID) < 0) {
+		close(fd);
+		if (OCF_ERR_FLUSHING_INTERRUPTED == cmd_info.ext_err_code) {
+			return INTERRUPTED;
+		} else {
+			cas_printf(LOG_ERR, "Error starting upgrade\n");
+			print_err(cmd_info.ext_err_code);
+			return FAILURE;
+		}
+	}
+
+	close(fd);
+	return SUCCESS;
+}

casadm/upgrade.h

@@ -0,0 +1,11 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef _UPGRADE_H
+#define _UPGRADE_H
+
+int upgrade_start();
+
+#endif

casadm/vt100codes.h

@@ -0,0 +1,119 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+/* General setup */
+#define               RESET_DEVICE "\033c"
+//! enable line wrapping
+#define           ENABLE_LINE_WRAP "\x1b[7h"
+//! disable it
+#define          DISABLE_LINE_WRAP "\x1b[7l"
+
+/* Scrolling options. Note: there is no way to disable scrolling */
+//! Whole screen is scrolled on SCROLL_UP/SCROLL_DOWN
+#define       SCROLL_ENTIRE_SCREEN "\x1b[r"
+//! Only rows from A to B are scrolled on  SCROLL_UP/SCROLL_DOWN, anything above A or below B is not scrolled
+#define  SCROLL_SCREEN_REGION(A,B) "\x1b["  (A)   ";"   (B)   "r"
+
+//! scroll up
+#define                  SCROLL_UP "\x1b[M"
+//! scroll down
+#define                SCROLL_DOWN "\x1b[D"
+
+//! make cursor invisible - xterm
+#define                HIDE_CURSOR "\x1b[?25l"
+
+//! restore it -xterm
+#define                SHOW_CURSOR "\x1b[?25h"
+
+/* Absolute cursor positioning. */
+//! Set cursor position  to left-top position
+#define                CURSOR_HOME "\x1b[H"
+//! Set cursor position to specific y/x (note: y = 1..height, x = 1..width)
+#define             CURSOR_YX "\x1b[%d;%dH"
+/* Relative cursor positioning. */
+//! move cursor one position up
+#define                  CURSOR_UP "\x1b[A"
+//! move cursor n positions up
+#define              CURSOR_UP_N "\x1b[%dA"
+//! move cursor one position down
+#define                CURSOR_DOWN "\x1b[B"
+//! move cursor n positions down
+#define            CURSOR_DOWN_N "\x1b[%dB"
+//! move cursor one position forward
+#define             CURSOR_FORWARD "\x1b[C"
+//! move cursor n positions forward
+#define         CURSOR_FORWARD_N "\x1b[%dC"
+//! move cursor one position backward
+#define            CURSOR_BACKWARD "\x1b[D"
+//! move cursor n positions backward
+#define        CURSOR_BACKWARD_N "\x1b[%dD"
+/* Unsave restores position after last save. */
+//! One cursor position may be saved
+#define                SAVE_CURSOR "\x1b[s"
+//! and restored
+#define              UNSAVE_CURSOR "\x1b[u"
+
+/* Erase screen. */
+//! Erase whole screen
+#define                      ERASE "\x1b[2J"
+//! same as above
+#define               ERASE_SCREEN ERASE
+//! erase above cursor
+#define                   ERASE_UP "\x1b[1J"
+//! erase below cursor
+#define                 ERASE_DOWN "\x1b[J"
+
+
+#define                INSERT_MODE  "\x1b[4h"
+#define               REPLACE_MODE  "\x1b[4l"
+/* Erase line. */
+//! erase current line
+#define                 ERASE_LINE "\x1b[K"
+//! erase current line left from the cursor
+#define        ERASE_START_OF_LINE "\x1b[1K"
+//! erase current line right from the cursor
+#define          ERASE_END_OF_LINE "\x1b[K"
+
+/* a = one of following 23 attributes*/
+//! set specific attribute
+#define                   SET_ATTR "\x1b[%dm"
+//! if you have to set more attributes, separate them by   ";"
+#define                   AND_ATTR  ";"
+/*generalattributes (0-8 without 3 and 6) */
+//!resets terminal defaults
+#define                 ATTR_RESET 0
+//!sets brighter fg color
+#define                ATTR_BRIGHT 1
+//!turns off bright (sets darker fg color) note: not supported by most of platforms
+#define                   ATTR_DIM 2
+//!turns on text underline (not supported by MS Windows)
+#define            ATTR_UNDERSCORE 4
+//!turns on blink (Not supported by MS Windows, most of other implementations incompatible)
+#define                 ATTR_BLINK 5
+//! Inverts bg and fg color (incompatible implementation on MS windows)*/
+#define               ATTR_REVERSE 7
+
+#define                ATTR_HIDDEN 8 /*???*/
+
+/*Foreground (text) colours*/
+#define             FG_COLOR_BLACK 30
+#define               FG_COLOR_RED 31
+#define             FG_COLOR_GREEN 32
+#define            FG_COLOR_YELLOW 33
+#define              FG_COLOR_BLUE 34
+#define           FG_COLOR_MAGENTA 35
+#define              FG_COLOR_CYAN 36
+#define             FG_COLOR_WHITE 37
+
+/*Background colors*/
+#define             BG_COLOR_BLACK 40
+#define               BG_COLOR_RED 41
+#define             BG_COLOR_GREEN 42
+#define            BG_COLOR_YELLOW 43
+#define              BG_COLOR_BLUE 44
+#define           BG_COLOR_MAGENTA 45
+#define              BG_COLOR_CYAN 46
+#define             BG_COLOR_WHITE 47
+

modules/CAS_VERSION_GEN

@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# Copyright(c) 2012-2019 Intel Corporation
+# SPDX-License-Identifier: BSD-3-Clause-Clear
+#
+
+VER_FILE=CAS_VERSION
+
+which git > /dev/null 2>&1
+if [ $? -eq 0 ] && [ -e ../../../.git ]; then
+	echo "Generating ${VER_FILE} from git revision."
+	echo ""
+	VERSION=`git describe HEAD 2>/dev/null`
+
+	CAS_VERSION_MAIN=`echo ${VERSION} | cut  -d '.' -f 1 | awk '{print substr($0, 2)}'`
+	CAS_VERSION_MAJOR=`echo ${VERSION} | cut -d '.' -f 2 | awk '{print substr($0, 2)}'`
+	CAS_VERSION_MINOR=`echo ${VERSION} | cut -d '.' -f 3 | awk '{print substr($0, 2)}'`
+	CAS_BUILD_NO=`echo ${VERSION} | cut -d '.' -f 4 | cut -d '-' -f 1`
+	CAS_BUILD_FLAG=`echo ${VERSION} | cut -d '.' -f 4 | cut -s -d '-' -f 3`
+
+	rm -f ${VER_FILE}
+	touch ${VER_FILE}
+
+	echo "CAS_VERSION_MAIN=${CAS_VERSION_MAIN}" >> ${VER_FILE}
+	echo "CAS_VERSION_MAJOR=${CAS_VERSION_MAJOR}" >> ${VER_FILE}
+	echo "CAS_VERSION_MINOR=${CAS_VERSION_MINOR}" >> ${VER_FILE}
+	echo "CAS_BUILD_NO=${CAS_BUILD_NO}" >> ${VER_FILE}
+	echo "CAS_BUILD_FLAG=${CAS_BUILD_FLAG}" >> ${VER_FILE}
+elif [ -f ${VER_FILE} ]; then
+	echo "Using existing ${VER_FILE} version file."
+	echo ""
+else
+	echo "No ${VER_FILE} found. Preparing default version file."
+	echo ""
+
+	CAS_VERSION_MAIN=19
+	CAS_VERSION_MAJOR=3
+	CAS_VERSION_MINOR=0
+	CAS_BUILD_NO=0000`date +%m%d`
+	CAS_BUILD_FLAG=
+
+	touch ${VER_FILE}
+
+	echo "CAS_VERSION_MAIN=${CAS_VERSION_MAIN}" >> ${VER_FILE}
+	echo "CAS_VERSION_MAJOR=${CAS_VERSION_MAJOR}" >> ${VER_FILE}
+	echo "CAS_VERSION_MINOR=${CAS_VERSION_MINOR}" >> ${VER_FILE}
+	echo "CAS_BUILD_NO=${CAS_BUILD_NO}" >> ${VER_FILE}
+	echo "CAS_BUILD_FLAG=${CAS_BUILD_FLAG}" >> ${VER_FILE}
+fi
+
+cat ${VER_FILE}

modules/Makefile

@@ -0,0 +1,76 @@
+#
+# Copyright(c) 2012-2019 Intel Corporation
+# SPDX-License-Identifier: BSD-3-Clause-Clear
+#
+# If KERNELRELEASE is defined, we've been invoked from the
+# kernel build system and can use its language.
+ifneq ($(KERNELRELEASE),)
+
+include $(M)/config.mk
+
+obj-y += cas_cache/
+obj-y += cas_disk/
+
+# Otherwise we were called directly from the command
+# line; invoke the kernel build system.
+else
+
+VERSION_FILE=$(PWD)/CAS_VERSION
+
+OCFDIR=$(PWD)/../ocf
+KERNEL_DIR ?= "/lib/modules/$(shell uname -r)/build"
+PWD=$(shell pwd)
+KERNEL_VERSION := $(shell uname -r)
+MODULES_DIR=/lib/modules/$(KERNEL_VERSION)/extra
+
+DISK_MODULE = cas_disk
+CACHE_MODULE = cas_cache
+
+DEPMOD:=$(shell which depmod)
+RMMOD :=$(shell which rmmod)
+MODPROBE:=$(shell which modprobe)
+
+all: default
+
+$(VERSION_FILE):
+	./CAS_VERSION_GEN
+
+# Extra targets and file configuration
+ifneq ($(wildcard $(PWD)/extra.mk),)
+include $(PWD)/extra.mk
+else
+sync distsync:
+endif
+
+default: $(VERSION_FILE) sync
+	cd $(KERNEL_DIR) && $(MAKE) M=$(PWD) modules
+
+clean:
+	cd $(KERNEL_DIR) && make M=$(PWD) clean
+
+distclean: clean distsync
+
+install:
+	@echo "Installing Open-CAS modules"
+	@install -m 755 -d $(MODULES_DIR)
+	@install -m 744 cas_disk/$(DISK_MODULE).ko $(MODULES_DIR)/$(DISK_MODULE).ko
+	@install -m 744 cas_cache/$(CACHE_MODULE).ko $(MODULES_DIR)/$(CACHE_MODULE).ko
+
+	@$(DEPMOD)
+	@$(MODPROBE) $(CACHE_MODULE)
+
+uninstall:
+	@echo "Uninstalling Open-CAS modules"
+	@$(RMMOD) $(CACHE_MODULE)
+	@$(RMMOD) $(DISK_MODULE)
+
+	@rm $(MODULES_DIR)/$(CACHE_MODULE).ko
+	@rm $(MODULES_DIR)/$(DISK_MODULE).ko
+
+	@$(DEPMOD)
+
+reinstall: uninstall install
+
+.PHONY: all default clean distclean sync distsync install uninstall
+
+endif

modules/README

@@ -0,0 +1,17 @@
+Open CAS  accelerates Linux applications by caching active (hot) data to
+a local flash device inside servers. Open CAS implements caching at the
+server level, utilizing local high-performance flash media as the cache drive
+media inside the application server as close as possible to the CPU, thus
+reducing storage latency as much as possible.
+The Open Cache Acceleration Software installs into the GNU/Linux operating
+system itself, as a kernel module. The nature of the integration provides a
+cache solution that is transparent to users and  applications, and your
+existing storage infrastructure. No storage migration effort or application
+changes are required.
+
+Open CAS is distributed on Dual BSD-2-Clause-Patent/GPLv2 license (see
+https://opensource.org/licenses/BSDplusPatent and
+https://opensource.org/licenses/GPL-2.0 for for full license texts).
+
+Open CAS uses Safe string library (safeclib) that is MIT licensed.
+

modules/cas_cache/.gitignore

@@ -0,0 +1,3 @@
+include/
+src/
+

modules/cas_cache/Makefile

@@ -0,0 +1,10 @@
+#
+# Copyright(c) 2012-2019 Intel Corporation
+# SPDX-License-Identifier: BSD-3-Clause-Clear
+#
+include $(M)/config.mk
+
+obj-m := cas_cache.o
+
+cas_cache-c    = $(shell find $(M)/cas_cache -name \*.c)
+cas_cache-objs = $(patsubst $(M)/cas_cache/%.c,%.o,$(cas_cache-c))

modules/cas_cache/cas_cache.h

@@ -0,0 +1,97 @@
+/*
+* Copyright(c) 2012-2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#ifndef __CAS_CACHE_H__
+#define __CAS_CACHE_H__
+
+#include "ocf/ocf.h"
+#include "ocf_env.h"
+
+#include <cas_version.h>
+#include <cas_ioctl_codes.h>
+
+#include "linux_kernel_version.h"
+#include "layer_upgrade.h"
+#include "control.h"
+#include "layer_cache_management.h"
+#include "service_ui_ioctl.h"
+#include "utils/cas_cache_utils.h"
+#include "volume/vol_blk_utils.h"
+#include "classifier.h"
+#include "context.h"
+#include <linux/kallsyms.h>
+
+#define CAS_KERN_EMERG KERN_EMERG OCF_PREFIX_SHORT
+#define CAS_KERN_ALERT KERN_ALERT OCF_PREFIX_SHORT
+#define CAS_KERN_CRIT KERN_CRIT OCF_PREFIX_SHORT
+#define CAS_KERN_ERR KERN_ERR OCF_PREFIX_SHORT
+#define CAS_KERN_WARNING KERN_WARNING OCF_PREFIX_SHORT
+#define CAS_KERN_NOTICE KERN_NOTICE OCF_PREFIX_SHORT
+#define CAS_KERN_INFO KERN_INFO OCF_PREFIX_SHORT
+#define CAS_KERN_DEBUG KERN_DEBUG OCF_PREFIX_SHORT
+
+#ifndef SECTOR_SHIFT
+#define SECTOR_SHIFT 9
+#endif
+
+#ifndef SECTOR_SIZE
+#define SECTOR_SIZE (1<<SECTOR_SHIFT)
+#endif
+
+#define MAX_LINES_PER_IO	16
+
+/**
+ * cache/core object types */
+enum {
+	BLOCK_DEVICE_VOLUME = 1,	/**< block device volume */
+	ATOMIC_DEVICE_VOLUME,		/**< block device volume with atomic
+					     metadata support */
+/** \cond SKIP_IN_DOC */
+	OBJECT_TYPE_MAX,
+	NVME_CONTROLLER
+/** \endcond */
+};
+
+struct cas_classifier;
+
+struct cache_priv {
+	struct cas_classifier *classifier;
+	ocf_queue_t mngt_queue;
+	ocf_queue_t io_queues[];
+};
+
+extern ocf_ctx_t cas_ctx;
+
+extern struct casdsk_functions_mapper casdisk_functions;
+
+struct casdsk_functions_mapper {
+	int (*casdsk_disk_dettach)(struct casdsk_disk *dsk);
+	int (*casdsk_exp_obj_destroy)(struct casdsk_disk *dsk);
+	int (*casdsk_exp_obj_create)(struct casdsk_disk *dsk, const char *dev_name,
+		struct module *owner, struct casdsk_exp_obj_ops *ops);
+	struct request_queue *(*casdsk_disk_get_queue)(struct casdsk_disk *dsk);
+	void (*casdsk_store_config)(size_t n_blobs, struct casdsk_props_conf *blobs);
+	struct block_device *(*casdsk_disk_get_blkdev)(struct casdsk_disk *dsk);
+	struct request_queue *(*casdsk_exp_obj_get_queue)(struct casdsk_disk *dsk);
+	uint32_t (*casdsk_get_version)(void);
+	void (*casdsk_disk_close)(struct casdsk_disk *dsk);
+	struct casdsk_disk *(*casdsk_disk_claim)(const char *path, void *private);
+	int (*casdsk_exp_obj_unlock)(struct casdsk_disk *dsk);
+	int (*casdsk_disk_set_pt)(struct casdsk_disk *dsk);
+	size_t (*casdsk_get_stored_config)(struct casdsk_props_conf **blobs);
+	struct gendisk *(*casdsk_disk_get_gendisk)(struct casdsk_disk *dsk);
+	int (*casdsk_disk_attach) (struct casdsk_disk *dsk, struct module *owner,
+		struct casdsk_exp_obj_ops *ops);
+	int (*casdsk_disk_set_attached)(struct casdsk_disk *dsk);
+	int (*casdsk_exp_obj_activate)(struct casdsk_disk *dsk);
+	bool (*casdsk_exp_obj_activated)(struct casdsk_disk *ds);
+	int (*casdsk_exp_obj_lock)(struct casdsk_disk *dsk);
+	void (*casdsk_free_stored_config)(void);
+	struct casdsk_disk *(*casdsk_disk_open)(const char *path, void *private);
+	int (*casdsk_disk_clear_pt)(struct casdsk_disk *dsk);
+	struct gendisk *(*casdsk_exp_obj_get_gendisk)(struct casdsk_disk *dsk);
+};
+
+#endif

modules/cas_cache/classifier.c

@@ -0,0 +1,967 @@
+/*
+* Copyright(c) 2019 Intel Corporation
+* SPDX-License-Identifier: BSD-3-Clause-Clear
+*/
+
+#include "cas_cache.h"
+#include "linux_kernel_version.h"
+#include "classifier.h"
+#include "classifier_defs.h"
+#include <linux/namei.h>
+
+/* Kernel log prefix */
+#define CAS_CLS_LOG_PREFIX OCF_PREFIX_SHORT"[Classifier]"
+
+/* Production version logs */
+#define CAS_CLS_MSG(severity, format, ...) \
+	printk(severity CAS_CLS_LOG_PREFIX " " format, ##__VA_ARGS__);
+
+/* Set to 1 to enable debug logs */
+#define CAS_CLASSIFIER_CLS_DEBUG 0
+
+#if 1 == CAS_CLASSIFIER_CLS_DEBUG
+/* Debug log */
+#define CAS_CLS_DEBUG_MSG(format, ...) \
+	CAS_CLS_MSG(KERN_INFO, format, ##__VA_ARGS__)
+/* Trace log */
+#define CAS_CLS_DEBUG_TRACE(format, ...) \
+	trace_printk(format, ##__VA_ARGS__)
+
+#else
+#define CAS_CLS_DEBUG_MSG(format, ...)
+#define CAS_CLS_DEBUG_TRACE(format, ...)
+#endif
+
+/* Done condition test - always accepts and stops evaluation */
+static cas_cls_eval_t _cas_cls_done_test(struct cas_classifier *cls,
+		struct cas_cls_condition *c, struct cas_cls_io *io,
+		ocf_part_id_t part_id)
+{
+	cas_cls_eval_t ret = {.yes = 1, .stop = 1};
+	return ret;
+}
+
+/* Metadata condition test */
+static cas_cls_eval_t _cas_cls_metadata_test(struct cas_classifier *cls,
+		struct cas_cls_condition *c, struct cas_cls_io *io,
+		ocf_part_id_t part_id)
+{
+	if (!io->page)
+		return cas_cls_eval_no;
+
+	if (PageAnon(io->page))
+		return cas_cls_eval_no;
+
+	if (PageSlab(io->page) || PageCompound(io->page)) {
+		/* A filesystem issues IO on pages that does not belongs
+		 * to the file page cache. It means that it is a
+		 * part of metadata
+		 */
+		return cas_cls_eval_yes;
+	}
+
+	if (!io->page->mapping) {
+		/* XFS case, page are allocated internally and do not
+		 * have references into inode
+		 */
+		return cas_cls_eval_yes;
+	}
+
+	if (!io->inode)
+		return cas_cls_eval_no;
+
+	if (S_ISBLK(io->inode->i_mode)) {
+		/* EXT3 and EXT4 case. Metadata IO is performed into pages
+		 * of block device cache
+		 */
+		return cas_cls_eval_yes;
+	}
+
+	if (S_ISDIR(io->inode->i_mode)) {
+		return cas_cls_eval_yes;
+	}
+
+	return cas_cls_eval_no;
+}
+
+/* Direct I/O condition test function */
+static cas_cls_eval_t _cas_cls_direct_test(struct cas_classifier *cls,
+		struct cas_cls_condition *c, struct cas_cls_io *io,
+		ocf_part_id_t part_id)
+{
+	if (!io->page)
+		return cas_cls_eval_no;
+
+	if (PageAnon(io->page))
+		return cas_cls_eval_yes;
+
+	return cas_cls_eval_no;
+}
+
+/* Generic condition constructor for conditions without operands (e.g. direct,
+ * metadata) */
+static int _cas_cls_generic_ctr(struct cas_classifier *cls,
+		struct cas_cls_condition *c, char *data)
+{
+	if (data) {
+		CAS_CLS_MSG(KERN_ERR, "Unexpected operand in condition\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/* Generic condition destructor */
+static void _cas_cls_generic_dtr(struct cas_classifier *cls,
+		struct cas_cls_condition *c)
+{
+	if (c->context)
+		kfree(c->context);
+	c->context = NULL;
+}
+
+/* Numeric condition constructor. @data is expected to contain either
+ * plain number string or range specifier (e.g. "gt:4096"). */
+static int _cas_cls_numeric_ctr(struct cas_classifier* cls,
+		struct cas_cls_condition *c, char *data)
+{
+	struct cas_cls_numeric *ctx;
+	int result;
+	char *ptr;
+
+	if (!data || strlen(data) == 0) {
+		CAS_CLS_MSG(KERN_ERR, "Missing numeric condition operand\n");
+		return -EINVAL;
+	}
+
+	ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->operator = cas_cls_numeric_eq;
+
+	ptr = strpbrk(data, ":");
+	if (ptr) {
+		/* Terminate sub-string containing arithmetic operator */
+		*ptr = '\0';
+		++ptr;
+
+		if (!strcmp(data, "eq")) {
+			ctx->operator = cas_cls_numeric_eq;
+		} else if (!strcmp(data, "ne")) {
+			ctx->operator = cas_cls_numeric_ne;
+		} else if (!strcmp(data, "lt")) {
+			ctx->operator = cas_cls_numeric_lt;
+		} else if (!strcmp(data, "gt")) {
+			ctx->operator = cas_cls_numeric_gt;
+		} else if (!strcmp(data, "le")) {
+			ctx->operator = cas_cls_numeric_le;
+		} else if (!strcmp(data, "ge")) {
+			ctx->operator = cas_cls_numeric_ge;
+		} else {
+			CAS_CLS_MSG(KERN_ERR, "Invalid numeric operator \n");
+			result = -EINVAL;
+			goto error;
+		}
+
+	} else {
+		/* Plain number case */
+		ptr = data;
+	}
+
+	result = kstrtou64(ptr, 10, &ctx->v_u64);
+	if (result) {
+		CAS_CLS_MSG(KERN_ERR, "Invalid numeric operand\n");
+		goto error;
+	}
+
+	CAS_CLS_DEBUG_MSG("\t\t - Using operator %d with value %llu\n",
+			ctx->operator, ctx->v_u64);
+
+	c->context = ctx;
+	return 0;
+
+error:
+	kfree(ctx);
+	return result;
+}
+
+/* Unsigned int numeric test function */
+static cas_cls_eval_t _cas_cls_numeric_test_u(
+		struct cas_cls_condition *c, uint64_t val)
+{
+	struct cas_cls_numeric *ctx = c->context;
+
+	switch (ctx->operator) {
+	case cas_cls_numeric_eq:
+		return val == ctx->v_u64 ? cas_cls_eval_yes : cas_cls_eval_no;
+	case cas_cls_numeric_ne:
+		return val != ctx->v_u64 ? cas_cls_eval_yes : cas_cls_eval_no;
+	case cas_cls_numeric_lt:
+		return val < ctx->v_u64 ? cas_cls_eval_yes : cas_cls_eval_no;
+	case cas_cls_numeric_gt:
+		return val > ctx->v_u64 ? cas_cls_eval_yes : cas_cls_eval_no;
+	case cas_cls_numeric_le:
+		return val <= ctx->v_u64 ? cas_cls_eval_yes : cas_cls_eval_no;
+	case cas_cls_numeric_ge:
+		return val >= ctx->v_u64 ? cas_cls_eval_yes : cas_cls_eval_no;
+	}
+
+	return cas_cls_eval_no;
+}
+
+/* Io class test function */
+static cas_cls_eval_t _cas_cls_io_class_test(struct cas_classifier *cls,
+		struct cas_cls_condition *c, struct cas_cls_io *io,
+		ocf_part_id_t part_id)
+{
+
+	return _cas_cls_numeric_test_u(c, part_id);
+}
+
+/* File size test function */
+static cas_cls_eval_t _cas_cls_file_size_test(
+		struct cas_classifier *cls, struct cas_cls_condition *c,
+		struct cas_cls_io *io, ocf_part_id_t part_id)
+{
+	if (!io->inode)
+		return cas_cls_eval_no;
+
+	if (S_ISBLK(io->inode->i_mode))
+		return cas_cls_eval_no;
+
+	if (!S_ISREG(io->inode->i_mode))
+		return cas_cls_eval_no;
+
+	return _cas_cls_numeric_test_u(c, i_size_read(io->inode));
+}
+
+/* Resolve path to inode */
+static void _cas_cls_directory_resolve(struct cas_classifier *cls,
+		struct cas_cls_directory *ctx)
+{
+	struct path path;
+	struct inode *inode;
+	int error;
+	int o_res;
+	unsigned long o_ino;
+
+	o_res = ctx->resolved;
+	o_ino = ctx->i_ino;
+
+	error = kern_path(ctx->pathname, LOOKUP_FOLLOW, &path);
+	if (error) {
+		ctx->resolved = 0;
+		if (o_res) {
+			CAS_CLS_DEBUG_MSG("Removed inode resolution for %s\n",
+					ctx->pathname);
+		}
+		return;
+	}
+
+	inode = path.dentry->d_inode;
+	ctx->i_ino = inode->i_ino;
+	ctx->resolved = 1;
+	path_put(&path);
+
+	if (!o_res) {
+		CAS_CLS_DEBUG_MSG("Resolved %s to inode: %lu\n", ctx->pathname,
+				ctx->i_ino);
+	} else if (o_ino != ctx->i_ino) {
+		CAS_CLS_DEBUG_MSG("Changed inode resolution for %s: %lu => %lu"
+				"\n", ctx->pathname, o_ino, ctx->i_ino);
+	}
+}
+
+/* Inode resolving work entry point */
+static void _cas_cls_directory_resolve_work(struct work_struct *work)
+{
+	struct cas_cls_directory *ctx;
+
+	ctx = container_of(work, struct cas_cls_directory, d_work.work);
+