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- /* matchpathcon - get the default security context for the specified
- * path from the file contexts configuration.
- * based on libselinux-1.32
- * Port to busybox: KaiGai Kohei <kaigai@kaigai.gr.jp>
- *
- * Licensed under GPLv2, see file LICENSE in this source tree.
- */
- //config:config MATCHPATHCON
- //config: bool "matchpathcon"
- //config: default n
- //config: depends on SELINUX
- //config: help
- //config: Enable support to get default security context of the
- //config: specified path from the file contexts configuration.
- //applet:IF_MATCHPATHCON(APPLET(matchpathcon, BB_DIR_USR_SBIN, BB_SUID_DROP))
- //kbuild:lib-$(CONFIG_MATCHPATHCON) += matchpathcon.o
- //usage:#define matchpathcon_trivial_usage
- //usage: "[-n] [-N] [-f file_contexts_file] [-p prefix] [-V]"
- //usage:#define matchpathcon_full_usage "\n\n"
- //usage: " -n Don't display path"
- //usage: "\n -N Don't use translations"
- //usage: "\n -f Use alternate file_context file"
- //usage: "\n -p Use prefix to speed translations"
- //usage: "\n -V Verify file context on disk matches defaults"
- #include "libbb.h"
- static int print_matchpathcon(char *path, int noprint)
- {
- char *buf;
- int rc = matchpathcon(path, 0, &buf);
- if (rc < 0) {
- bb_perror_msg("matchpathcon(%s) failed", path);
- return 1;
- }
- if (!noprint)
- printf("%s\t%s\n", path, buf);
- else
- puts(buf);
- freecon(buf);
- return 0;
- }
- #define OPT_NOT_PRINT (1<<0) /* -n */
- #define OPT_NOT_TRANS (1<<1) /* -N */
- #define OPT_FCONTEXT (1<<2) /* -f */
- #define OPT_PREFIX (1<<3) /* -p */
- #define OPT_VERIFY (1<<4) /* -V */
- int matchpathcon_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
- int matchpathcon_main(int argc UNUSED_PARAM, char **argv)
- {
- int error = 0;
- unsigned opts;
- char *fcontext, *prefix, *path;
- opt_complementary = "-1" /* at least one param reqd */
- ":?:f--p:p--f"; /* mutually exclusive */
- opts = getopt32(argv, "nNf:p:V", &fcontext, &prefix);
- argv += optind;
- if (opts & OPT_NOT_TRANS) {
- set_matchpathcon_flags(MATCHPATHCON_NOTRANS);
- }
- if (opts & OPT_FCONTEXT) {
- if (matchpathcon_init(fcontext))
- bb_perror_msg_and_die("error while processing %s", fcontext);
- }
- if (opts & OPT_PREFIX) {
- if (matchpathcon_init_prefix(NULL, prefix))
- bb_perror_msg_and_die("error while processing %s", prefix);
- }
- while ((path = *argv++) != NULL) {
- security_context_t con;
- int rc;
- if (!(opts & OPT_VERIFY)) {
- error += print_matchpathcon(path, opts & OPT_NOT_PRINT);
- continue;
- }
- if (selinux_file_context_verify(path, 0)) {
- printf("%s verified\n", path);
- continue;
- }
- if (opts & OPT_NOT_TRANS)
- rc = lgetfilecon_raw(path, &con);
- else
- rc = lgetfilecon(path, &con);
- if (rc >= 0) {
- printf("%s has context %s, should be ", path, con);
- error += print_matchpathcon(path, 1);
- freecon(con);
- continue;
- }
- printf("actual context unknown: %s, should be ", strerror(errno));
- error += print_matchpathcon(path, 1);
- }
- matchpathcon_fini();
- return error;
- }
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