mirror of
https://github.com/ibm-s390-linux/s390-tools.git
synced 2026-08-05 02:14:52 +00:00
f821f31a51
This patch adds support for Secure Execution with AP pass-through support for lszcrypt. lszcrypt details: * extension to -b: list AP bus features * extension to -c: now also valid for queue devices, shows bind and assoicate state in SE environment; shows MK states (only for current MKs). * extension to -V: new column SESTAT within an SE guest, shows text for the BS bits within an SE environment: "usable", "bond", "avail", "unuse". Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
74 lines
1.5 KiB
C
74 lines
1.5 KiB
C
/*
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* Misc - Local helper functions
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*
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* Copyright IBM Corp. 2016, 2023
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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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#include <regex.h>
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#include <string.h>
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#include <sys/types.h>
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#include "lib/util_base.h"
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#include "lib/util_file.h"
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#include "lib/util_panic.h"
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#include "lib/util_path.h"
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#include "misc.h"
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/**
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* Test string against regular expression
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*
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* @param[in] str String to investigate
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* @param[in] regex Regular expression
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*
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* @returns true String matches with regular expression
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* false No match
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*/
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bool misc_regex_match(const char *str, const char *regex)
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{
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regmatch_t pmatch[1];
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regex_t preg;
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int rc;
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rc = regcomp(&preg, regex, REG_EXTENDED);
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util_assert(rc == 0, "The regcomp() function failed: rc = %d\n", rc);
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rc = regexec(&preg, str, (size_t) 1, pmatch, 0);
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regfree(&preg);
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return rc == 0 ? true : false;
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}
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/**
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* Test if AP bus has SB support available.
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*
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* @returns true Yes, SB support is available
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* false No
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*/
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bool ap_bus_has_SB_support(void)
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{
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static int sb_support = -1;
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if (sb_support < 0) {
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char *ap, buf[256];
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ap = util_path_sysfs("bus/ap");
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if (!util_path_is_dir(ap)) {
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sb_support = 0;
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} else {
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if (!util_path_is_readable("%s/features", ap)) {
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sb_support = 0;
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} else {
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util_file_read_line(buf, sizeof(buf),
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"%s/features", ap);
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if (strstr(buf, "APSB"))
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sb_support = 1;
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}
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}
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free(ap);
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}
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return sb_support > 0 ? true : false;
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}
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