diff options
Diffstat (limited to 'selinux/sestatus.c')
| -rw-r--r-- | selinux/sestatus.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/selinux/sestatus.c b/selinux/sestatus.c new file mode 100644 index 000000000..cc17b175b --- /dev/null +++ b/selinux/sestatus.c @@ -0,0 +1,219 @@ +/* + * 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> + */ + +#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[256]; + FILE *fp; + int pc_ofs = 0, fc_ofs = 0, section = -1; + + pc[0] = fc[0] = NULL; + + fp = fopen("/etc/sestatus.conf", "rb"); + if (fp == NULL) + return; + + while (fgets(buf, sizeof(buf), fp) != NULL) { + int i, c; + + /* kills comments */ + for (i = 0; (c = buf[i]) != '\0'; i++) { + if (c == '#') { + buf[i] = '\0'; + break; + } + } + trim(buf); + + if (buf[0] == '\0') + continue; + + 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++] = strdup(buf); + pc[pc_ofs] = NULL; + } else if (section == 2 && fc_ofs < nfc - 1) { + fc[fc_ofs++] = strdup(buf); + fc[fc_ofs] = NULL; + } + } + } + fclose(fp); +} + +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 = ttyname(0); + 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, 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"); +} |