| /* 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. |
| */ |
| |
| //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; |
| } |