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https://github.com/ibm-s390-linux/s390-tools.git
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Initial s390-tools-2.0.0 import
This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
This commit is contained in:
Michael Holzheu
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/*
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* Copyright IBM Corp. 2006, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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* IUCV protocol stack for Linux on zSeries
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* Version 1.0
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*
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*/
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#ifndef __AFIUCV_H
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#define __AFIUCV_H
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#include <sys/socket.h>
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#ifndef AF_IUCV
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# define AF_IUCV 32
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# define PF_IUCV AF_IUCV
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#endif
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/* IUCV socket address */
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struct sockaddr_iucv {
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sa_family_t siucv_family;
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unsigned short siucv_port; /* Reserved */
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unsigned int siucv_addr; /* Reserved */
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char siucv_nodeid[8]; /* Reserved */
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char siucv_user_id[8]; /* Guest User Id */
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char siucv_name[8]; /* Application Name */
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};
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#endif
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@@ -0,0 +1,39 @@
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/*
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* iucvtty / iucvconn - IUCV Terminal Applications
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*
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* Configuration structure and command line processing function
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*
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* Copyright IBM Corp. 2008, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#ifndef __IUCVTTY_CONFIG_H_
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#define __IUCVTTY_CONFIG_H_
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enum iucvterm_prg {
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PROG_IUCV_TTY = 0,
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PROG_IUCV_CONN = 1,
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};
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struct iucvterm_cfg {
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char client_re[129]; /* Regexp to match incoming clients */
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char host[9]; /* IUCV target host name */
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char service[9]; /* IUCV service name */
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char **cmd_parms; /* ptr to commandline parms */
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char *sessionlog; /* ptr to session log file path */
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unsigned char esc_char; /* Escape character */
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unsigned int flags; /* Configuration flags */
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};
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/* configuration flags */
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#define CFG_F_CHKCLNT 0x0001 /* Check for permitted clients */
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/* configuration macros */
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#define CFG_CHKCLNT(c) ((c)->flags & CFG_F_CHKCLNT)
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extern void parse_options(enum iucvterm_prg, struct iucvterm_cfg *,
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int, char **);
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#endif /* __IUCVTTY_CONFIG_H_ */
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@@ -0,0 +1,76 @@
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/*
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* iucvtty / iucvconn - IUCV Terminal Applications
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*
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* Definition of common functions
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*
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* Copyright IBM Corp. 2008, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#ifndef __FUNCTIONS_H_
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#define __FUNCTIONS_H_
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#include <unistd.h>
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#include "af_iucv.h"
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#include "inttypes.h"
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#include "iucvterm/config.h"
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#include "iucvterm/proto.h"
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/* Message buffer: message header + 4096 bytes of data */
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#define MSG_BUFFER_SIZE (MSG_DATA_OFFSET + (4096))
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/* Error macros */
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#define print_error(s) program_error(PRG_COMPONENT, (s))
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#define iucvtty_error(m) \
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do { \
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uint32_t *err = (uint32_t *) (m)->data; \
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iucv_msg_error(PRG_COMPONENT, *err); \
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} while (0);
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/* Error codes */
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/* Unable to fork new process */
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#define ERR_FORK 105
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/* Cannot execute login program */
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#define ERR_CANNOT_EXEC_LOGIN 106
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/* Cannot set up terminal as a login terminal */
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#define ERR_SETUP_LOGIN_TTY 107
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/* Client (vm guest) is not authorized */
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#define ERR_NOT_AUTHORIZED 110
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extern int iucvtty_handle_req(int);
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extern int iucvtty_socket(struct sockaddr_iucv *,
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const char *, const char *);
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extern int iucvtty_tx_termenv(int, char *);
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extern int iucvtty_rx_termenv(int, void *, size_t);
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extern int iucvtty_tx_winsize(int, int);
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extern int iucvtty_tx_data(int, int, struct iucvtty_msg *, size_t);
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extern int iucvtty_tx_error(int, uint32_t);
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extern int iucvtty_copy_data(int, struct iucvtty_msg *);
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extern int iucvtty_read_data(int, struct iucvtty_msg *, size_t);
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extern int iucvtty_read_msg(int, struct iucvtty_msg *, size_t, size_t *);
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extern int iucvtty_write_msg(int, struct iucvtty_msg *);
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extern void iucvtty_skip_msg_residual(int, size_t *);
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extern ssize_t __write(int, const void*, size_t);
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extern int strmatch(const char *, const char *);
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extern int is_regex_valid(const char *);
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extern int is_client_allowed(const char *, const struct iucvterm_cfg *);
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extern void userid_cpy(char [8], const char [8]);
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extern void iucv_msg_error(const char *, uint32_t);
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extern void program_error(const char *, const char *);
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/* Audit/session log */
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extern int open_session_log(const char *);
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extern ssize_t write_session_log(const void*, size_t);
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extern void write_session_info(const char *, ...);
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extern void close_session_log(void);
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#endif /* __FUNCTIONS_H_ */
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/*
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* iucvtty / iucvconn - IUCV Terminal Applications
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*
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* National language support (NLS) functions
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*
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* Copyright IBM Corp. 2008, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#ifndef __IUCVTTY_GETTEXT_H_
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#define __IUCVTTY_GETTEXT_H_
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#ifdef USE_NLS
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# include <locale.h>
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# include <libintl.h>
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#endif
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/* Gettext constants (should be supplied from Makefile) */
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#ifndef GETTEXT_TEXTDOMAIN
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# define GETTEXT_TEXTDOMAIN "iucvterm"
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#endif
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#ifndef GETTEXT_NLS_PATH
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# define GETTEXT_NLS_PATH "/usr/share/locale"
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#endif
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/* Gettext macros */
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#ifdef USE_NLS
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# define _(translatable) gettext(translatable)
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#else
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# define _(translatable) (translatable)
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#endif
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#define N_(translatable) (translatable)
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/**
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* gettext_setup_locale() - Init gettext text domain using a specific locale
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* @locale: Locale to be set.
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*
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* The function sets the program locale for LC_MESSAGES and then initializes
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* gettext.
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*
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* The @locale parameter is directly passed to the setlocale() function.
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* If @locale is "", LC_MESSAGES is set according to the environment variable.
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*/
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static inline int gettext_init_locale(const char *locale)
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{
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#ifdef USE_NLS
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if (setlocale(LC_MESSAGES, locale) == NULL)
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return -1;
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if (bindtextdomain(GETTEXT_TEXTDOMAIN, GETTEXT_NLS_PATH) == NULL)
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return -1;
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if (textdomain(GETTEXT_TEXTDOMAIN) == NULL)
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return -1;
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#endif
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return 0;
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}
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/**
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* gettext_setup() - Initialize gettext text domain
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*
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* Calls gettext_setup_locale() with "" as locale parameter value.
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*/
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static inline int gettext_init(void)
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{
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#ifdef USE_NLS
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return gettext_init_locale("");
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#else
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return 0;
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#endif
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}
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#endif /* __IUCVTTY_GETTEXT_H_ */
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@@ -0,0 +1,106 @@
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/*
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* iucvtty / iucvconn - IUCV Terminal Applications
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*
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* Structure and function definitions for the IUCV terminal message protocol
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*
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* Copyright IBM Corp. 2008, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#ifndef __IUCVTTY_PROTO_H_
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#define __IUCVTTY_PROTO_H_
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include "lib/util_base.h"
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/* Standard macros */
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#ifndef offsetof
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# define offsetof(type, member) ((size_t) &((type *)0)->member)
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#endif
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/* Packet version magic */
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#define MSG_VERSION 0x02
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/* Message types */
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#define MSG_TYPE_ERROR 0x01 /* Error message. */
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#define MSG_TYPE_TERMENV 0x02 /* Terminal environment variable. */
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#define MSG_TYPE_TERMIOS 0x04 /* Terminal IO struct update. */
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#define MSG_TYPE_WINSIZE 0x08 /* Terminal window size update. */
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#define MSG_TYPE_DATA 0x10 /* Terminal data. */
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struct iucvtty_msg {
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uint8_t version; /* Message version */
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uint8_t type; /* Message type */
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uint16_t datalen; /* Number of bytes in payload */
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uint8_t data[]; /* Payload buffer */
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} __attribute__((packed));
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#define MSG_DATA_OFFSET (offsetof(struct iucvtty_msg, data))
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#define msg_size(m) (MSG_DATA_OFFSET + (m)->datalen)
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/**
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* msg_cpy_from() - Copy data to message
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* @msg: IUCV terminal message
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* @src: Pointer to source data buffer
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* @len: Length of source data buffer
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*
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* Copies @len bytes from @src to the message data buffer. The caller must
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* ensure not to overwrite the message data buffer.
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* Finally, the message datalen is set to @len
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*/
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static inline void msg_cpy_from(struct iucvtty_msg *msg, const void *src,
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size_t len)
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{
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memcpy(msg->data, src, len);
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msg->datalen = len;
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}
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/**
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* msg_cpy_to() - Copy data from a message
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* @msg: IUCV terminal message
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* @dst: Destination buffer
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* @len: Destination buffer length.
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*
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* Copies up to min(@len, message datalen) number of bytes from the IUCV
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* terminal message to the destination buffer.
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*/
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static inline void msg_cpy_to(const struct iucvtty_msg *msg, void *dst,
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size_t len)
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{
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memcpy(dst, msg->data, MIN(msg->datalen, len));
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}
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/**
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* msg_alloc() - Allocates a new iucv terminal message.
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* @type: Message type
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* @size: Message data size
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*
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* The function allocates a new iucv terminal message with the given data size
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* @size. (The total message size is @size plus MSG_DATA_OFFSET.)
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* The new message is initialized with the specific @type.
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*/
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static inline struct iucvtty_msg *msg_alloc(uint8_t type, uint16_t size)
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{
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struct iucvtty_msg *m;
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m = malloc(size + MSG_DATA_OFFSET);
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if (m != NULL) {
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m->version = MSG_VERSION;
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m->type = type;
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m->datalen = size;
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}
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return m;
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}
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/**
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* msg_free() - free an allocated iucv tty message
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*/
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static inline void msg_free(struct iucvtty_msg *m)
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{
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free(m);
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}
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#endif /* __IUCVTTY_PROTO_H_ */
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