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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "alloc-util.h"
#include "extract-word.h"
#include "fileio.h"
#include "lsm-util.h"
#include "string-util.h"
int lsm_supported(const char *name) {
_cleanup_free_ char *lsm_list = NULL;
int r;
assert(name);
r = read_one_line_file("/sys/kernel/security/lsm", &lsm_list);
if (r == -ENOENT) /* LSM support not available at all? */
return false;
if (r < 0)
return log_debug_errno(r, "Failed to read /sys/kernel/security/lsm: %m");
for (const char *p = lsm_list;;) {
_cleanup_free_ char *word = NULL;
r = extract_first_word(&p, &word, ",", 0);
if (r == 0)
return false;
if (r < 0)
return log_debug_errno(r, "Failed to parse /sys/kernel/security/lsm: %m");
if (streq(word, name))
return true;
}
}
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