[1765] | 1 | /* matchpathcon - get the default security context for the specified
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| 2 | * path from the file contexts configuration.
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| 3 | * based on libselinux-1.32
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| 4 | * Port to busybox: KaiGai Kohei <kaigai@kaigai.gr.jp>
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| 5 | *
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[2725] | 6 | * Licensed under GPLv2, see file LICENSE in this source tree.
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[1765] | 7 | */
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[3232] | 8 |
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| 9 | //usage:#define matchpathcon_trivial_usage
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| 10 | //usage: "[-n] [-N] [-f file_contexts_file] [-p prefix] [-V]"
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| 11 | //usage:#define matchpathcon_full_usage "\n\n"
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| 12 | //usage: " -n Don't display path"
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| 13 | //usage: "\n -N Don't use translations"
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| 14 | //usage: "\n -f Use alternate file_context file"
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| 15 | //usage: "\n -p Use prefix to speed translations"
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| 16 | //usage: "\n -V Verify file context on disk matches defaults"
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| 17 |
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[1765] | 18 | #include "libbb.h"
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| 19 |
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| 20 | static int print_matchpathcon(char *path, int noprint)
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| 21 | {
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| 22 | char *buf;
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| 23 | int rc = matchpathcon(path, 0, &buf);
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| 24 | if (rc < 0) {
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| 25 | bb_perror_msg("matchpathcon(%s) failed", path);
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| 26 | return 1;
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| 27 | }
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| 28 | if (!noprint)
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| 29 | printf("%s\t%s\n", path, buf);
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| 30 | else
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[2725] | 31 | puts(buf);
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[1765] | 32 |
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| 33 | freecon(buf);
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| 34 | return 0;
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| 35 | }
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| 36 |
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| 37 | #define OPT_NOT_PRINT (1<<0) /* -n */
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| 38 | #define OPT_NOT_TRANS (1<<1) /* -N */
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| 39 | #define OPT_FCONTEXT (1<<2) /* -f */
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| 40 | #define OPT_PREFIX (1<<3) /* -p */
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| 41 | #define OPT_VERIFY (1<<4) /* -V */
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| 42 |
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[2725] | 43 | int matchpathcon_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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| 44 | int matchpathcon_main(int argc UNUSED_PARAM, char **argv)
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[1765] | 45 | {
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| 46 | int error = 0;
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| 47 | unsigned opts;
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| 48 | char *fcontext, *prefix, *path;
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| 49 |
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| 50 | opt_complementary = "-1" /* at least one param reqd */
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| 51 | ":?:f--p:p--f"; /* mutually exclusive */
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| 52 | opts = getopt32(argv, "nNf:p:V", &fcontext, &prefix);
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| 53 | argv += optind;
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| 54 |
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| 55 | if (opts & OPT_NOT_TRANS) {
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| 56 | set_matchpathcon_flags(MATCHPATHCON_NOTRANS);
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| 57 | }
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| 58 | if (opts & OPT_FCONTEXT) {
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| 59 | if (matchpathcon_init(fcontext))
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| 60 | bb_perror_msg_and_die("error while processing %s", fcontext);
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| 61 | }
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| 62 | if (opts & OPT_PREFIX) {
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| 63 | if (matchpathcon_init_prefix(NULL, prefix))
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| 64 | bb_perror_msg_and_die("error while processing %s", prefix);
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| 65 | }
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| 66 |
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| 67 | while ((path = *argv++) != NULL) {
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| 68 | security_context_t con;
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| 69 | int rc;
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| 70 |
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| 71 | if (!(opts & OPT_VERIFY)) {
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| 72 | error += print_matchpathcon(path, opts & OPT_NOT_PRINT);
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| 73 | continue;
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| 74 | }
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| 75 |
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| 76 | if (selinux_file_context_verify(path, 0)) {
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| 77 | printf("%s verified\n", path);
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| 78 | continue;
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| 79 | }
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| 80 |
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| 81 | if (opts & OPT_NOT_TRANS)
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| 82 | rc = lgetfilecon_raw(path, &con);
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| 83 | else
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| 84 | rc = lgetfilecon(path, &con);
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| 85 |
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| 86 | if (rc >= 0) {
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| 87 | printf("%s has context %s, should be ", path, con);
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| 88 | error += print_matchpathcon(path, 1);
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| 89 | freecon(con);
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| 90 | continue;
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| 91 | }
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| 92 | printf("actual context unknown: %s, should be ", strerror(errno));
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| 93 | error += print_matchpathcon(path, 1);
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| 94 | }
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| 95 | matchpathcon_fini();
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| 96 | return error;
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| 97 | }
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