/* * sestatus -- displays the status of SELinux * * Ported to busybox: KaiGai Kohei <kaigai@ak.jp.nec.com> * * Copyright (C) KaiGai Kohei <kaigai@ak.jp.nec.com> * * Licensed under GPLv2, see file LICENSE in this tarball for details. */ #include "libbb.h" extern char *selinux_mnt; #define OPT_VERBOSE (1 << 0) #define OPT_BOOLEAN (1 << 1) #define COL_FMT "%-31s " static void display_boolean(void) { char **bools; int i, active, pending, nbool; if (security_get_boolean_names(&bools, &nbool) < 0) return; puts("\nPolicy booleans:"); for (i = 0; i < nbool; i++) { active = security_get_boolean_active(bools[i]); if (active < 0) goto skip; pending = security_get_boolean_pending(bools[i]); if (pending < 0) goto skip; printf(COL_FMT "%s", bools[i], active == 0 ? "off" : "on"); if (active != pending) printf(" (%sactivate pending)", pending == 0 ? "in" : ""); bb_putchar('\n'); skip: if (ENABLE_FEATURE_CLEAN_UP) free(bools[i]); } if (ENABLE_FEATURE_CLEAN_UP) free(bools); } static void read_config(char **pc, int npc, char **fc, int nfc) { char *buf; parser_t *parser; int pc_ofs = 0, fc_ofs = 0, section = -1; pc[0] = fc[0] = NULL; parser = config_open("/etc/sestatus.conf"); while (config_read(parser, &buf, 1, 1, "# \t", PARSE_NORMAL)) { if (strcmp(buf, "[process]") == 0) { section = 1; } else if (strcmp(buf, "[files]") == 0) { section = 2; } else { if (section == 1 && pc_ofs < npc -1) { pc[pc_ofs++] = xstrdup(buf); pc[pc_ofs] = NULL; } else if (section == 2 && fc_ofs < nfc - 1) { fc[fc_ofs++] = xstrdup(buf); fc[fc_ofs] = NULL; } } } config_close(parser); } static void display_verbose(void) { security_context_t con, _con; char *fc[50], *pc[50], *cterm; pid_t *pidList; int i; read_config(pc, ARRAY_SIZE(pc), fc, ARRAY_SIZE(fc)); /* process contexts */ puts("\nProcess contexts:"); /* current context */ if (getcon(&con) == 0) { printf(COL_FMT "%s\n", "Current context:", con); if (ENABLE_FEATURE_CLEAN_UP) freecon(con); } /* /sbin/init context */ if (getpidcon(1, &con) == 0) { printf(COL_FMT "%s\n", "Init context:", con); if (ENABLE_FEATURE_CLEAN_UP) freecon(con); } /* [process] context */ for (i = 0; pc[i] != NULL; i++) { pidList = find_pid_by_name(bb_basename(pc[i])); if (pidList[0] > 0 && getpidcon(pidList[0], &con) == 0) { printf(COL_FMT "%s\n", pc[i], con); if (ENABLE_FEATURE_CLEAN_UP) freecon(con); } if (ENABLE_FEATURE_CLEAN_UP) free(pidList); } /* files contexts */ puts("\nFile contexts:"); cterm = xmalloc_ttyname(0); //FIXME: if cterm == NULL, we segfault!?? puts(cterm); if (cterm && lgetfilecon(cterm, &con) >= 0) { printf(COL_FMT "%s\n", "Controlling term:", con); if (ENABLE_FEATURE_CLEAN_UP) freecon(con); } for (i = 0; fc[i] != NULL; i++) { struct stat stbuf; if (lgetfilecon(fc[i], &con) < 0) continue; if (lstat(fc[i], &stbuf) == 0) { if (S_ISLNK(stbuf.st_mode)) { if (getfilecon(fc[i], &_con) >= 0) { printf(COL_FMT "%s -> %s\n", fc[i], _con, con); if (ENABLE_FEATURE_CLEAN_UP) freecon(_con); } } else { printf(COL_FMT "%s\n", fc[i], con); } } if (ENABLE_FEATURE_CLEAN_UP) freecon(con); } } int sestatus_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int sestatus_main(int argc UNUSED_PARAM, char **argv) { unsigned opts; const char *pol_path; int rc; opt_complementary = "?0"; /* no arguments are required. */ opts = getopt32(argv, "vb"); /* SELinux status: line */ rc = is_selinux_enabled(); if (rc < 0) goto error; printf(COL_FMT "%s\n", "SELinux status:", rc == 1 ? "enabled" : "disabled"); /* SELinuxfs mount: line */ if (!selinux_mnt) goto error; printf(COL_FMT "%s\n", "SELinuxfs mount:", selinux_mnt); /* Current mode: line */ rc = security_getenforce(); if (rc < 0) goto error; printf(COL_FMT "%s\n", "Current mode:", rc == 0 ? "permissive" : "enforcing"); /* Mode from config file: line */ if (selinux_getenforcemode(&rc) != 0) goto error; printf(COL_FMT "%s\n", "Mode from config file:", rc < 0 ? "disabled" : (rc == 0 ? "permissive" : "enforcing")); /* Policy version: line */ rc = security_policyvers(); if (rc < 0) goto error; printf(COL_FMT "%u\n", "Policy version:", rc); /* Policy from config file: line */ pol_path = selinux_policy_root(); if (!pol_path) goto error; printf(COL_FMT "%s\n", "Policy from config file:", bb_basename(pol_path)); if (opts & OPT_BOOLEAN) display_boolean(); if (opts & OPT_VERBOSE) display_verbose(); return 0; error: bb_perror_msg_and_die("libselinux returns unknown state"); }