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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6 | */
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7 | #include "libbb.h"
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8 |
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9 | static int print_matchpathcon(char *path, int noprint)
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10 | {
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11 | char *buf;
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12 | int rc = matchpathcon(path, 0, &buf);
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13 | if (rc < 0) {
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14 | bb_perror_msg("matchpathcon(%s) failed", path);
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15 | return 1;
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16 | }
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17 | if (!noprint)
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18 | printf("%s\t%s\n", path, buf);
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19 | else
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20 | printf("%s\n", buf);
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21 |
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22 | freecon(buf);
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23 | return 0;
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24 | }
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25 |
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26 | #define OPT_NOT_PRINT (1<<0) /* -n */
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27 | #define OPT_NOT_TRANS (1<<1) /* -N */
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28 | #define OPT_FCONTEXT (1<<2) /* -f */
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29 | #define OPT_PREFIX (1<<3) /* -p */
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30 | #define OPT_VERIFY (1<<4) /* -V */
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31 |
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32 | int matchpathcon_main(int argc, char **argv);
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33 | int matchpathcon_main(int argc, char **argv)
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34 | {
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35 | int error = 0;
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36 | unsigned opts;
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37 | char *fcontext, *prefix, *path;
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38 |
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39 | opt_complementary = "-1" /* at least one param reqd */
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40 | ":?:f--p:p--f"; /* mutually exclusive */
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41 | opts = getopt32(argv, "nNf:p:V", &fcontext, &prefix);
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42 | argv += optind;
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43 |
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44 | if (opts & OPT_NOT_TRANS) {
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45 | set_matchpathcon_flags(MATCHPATHCON_NOTRANS);
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46 | }
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47 | if (opts & OPT_FCONTEXT) {
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48 | if (matchpathcon_init(fcontext))
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49 | bb_perror_msg_and_die("error while processing %s", fcontext);
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50 | }
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51 | if (opts & OPT_PREFIX) {
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52 | if (matchpathcon_init_prefix(NULL, prefix))
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53 | bb_perror_msg_and_die("error while processing %s", prefix);
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54 | }
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55 |
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56 | while ((path = *argv++) != NULL) {
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57 | security_context_t con;
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58 | int rc;
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59 |
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60 | if (!(opts & OPT_VERIFY)) {
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61 | error += print_matchpathcon(path, opts & OPT_NOT_PRINT);
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62 | continue;
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63 | }
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64 |
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65 | if (selinux_file_context_verify(path, 0)) {
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66 | printf("%s verified\n", path);
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67 | continue;
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68 | }
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69 |
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70 | if (opts & OPT_NOT_TRANS)
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71 | rc = lgetfilecon_raw(path, &con);
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72 | else
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73 | rc = lgetfilecon(path, &con);
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74 |
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75 | if (rc >= 0) {
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76 | printf("%s has context %s, should be ", path, con);
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77 | error += print_matchpathcon(path, 1);
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78 | freecon(con);
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79 | continue;
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80 | }
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81 | printf("actual context unknown: %s, should be ", strerror(errno));
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82 | error += print_matchpathcon(path, 1);
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83 | }
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84 | matchpathcon_fini();
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85 | return error;
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86 | }
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