mirror of
https://github.com/sheumann/hush.git
synced 2024-08-20 19:29:02 +00:00
220 lines
4.7 KiB
C
220 lines
4.7 KiB
C
/*
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* sestatus -- displays the status of SELinux
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*
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* Ported to busybox: KaiGai Kohei <kaigai@ak.jp.nec.com>
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*
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* Copyright (C) KaiGai Kohei <kaigai@ak.jp.nec.com>
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*/
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#include "libbb.h"
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extern char *selinux_mnt;
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#define OPT_VERBOSE (1 << 0)
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#define OPT_BOOLEAN (1 << 1)
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#define COL_FMT "%-31s "
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static void display_boolean(void)
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{
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char **bools;
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int i, active, pending, nbool;
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if (security_get_boolean_names(&bools, &nbool) < 0)
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return;
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puts("\nPolicy booleans:");
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for (i = 0; i < nbool; i++) {
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active = security_get_boolean_active(bools[i]);
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if (active < 0)
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goto skip;
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pending = security_get_boolean_pending(bools[i]);
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if (pending < 0)
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goto skip;
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printf(COL_FMT "%s",
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bools[i], active == 0 ? "off" : "on");
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if (active != pending)
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printf(" (%sactivate pending)", pending == 0 ? "in" : "");
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bb_putchar('\n');
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skip:
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if (ENABLE_FEATURE_CLEAN_UP)
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free(bools[i]);
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}
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if (ENABLE_FEATURE_CLEAN_UP)
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free(bools);
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}
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static void read_config(char **pc, int npc, char **fc, int nfc)
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{
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char buf[256];
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FILE *fp;
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int pc_ofs = 0, fc_ofs = 0, section = -1;
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pc[0] = fc[0] = NULL;
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fp = fopen("/etc/sestatus.conf", "rb");
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if (fp == NULL)
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return;
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while (fgets(buf, sizeof(buf), fp) != NULL) {
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int i, c;
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/* kills comments */
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for (i = 0; (c = buf[i]) != '\0'; i++) {
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if (c == '#') {
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buf[i] = '\0';
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break;
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}
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}
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trim(buf);
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if (buf[0] == '\0')
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continue;
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if (strcmp(buf, "[process]") == 0) {
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section = 1;
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} else if (strcmp(buf, "[files]") == 0) {
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section = 2;
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} else {
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if (section == 1 && pc_ofs < npc -1) {
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pc[pc_ofs++] = xstrdup(buf);
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pc[pc_ofs] = NULL;
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} else if (section == 2 && fc_ofs < nfc - 1) {
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fc[fc_ofs++] = xstrdup(buf);
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fc[fc_ofs] = NULL;
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}
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}
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}
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fclose(fp);
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}
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static void display_verbose(void)
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{
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security_context_t con, _con;
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char *fc[50], *pc[50], *cterm;
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pid_t *pidList;
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int i;
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read_config(pc, ARRAY_SIZE(pc), fc, ARRAY_SIZE(fc));
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/* process contexts */
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puts("\nProcess contexts:");
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/* current context */
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if (getcon(&con) == 0) {
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printf(COL_FMT "%s\n", "Current context:", con);
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if (ENABLE_FEATURE_CLEAN_UP)
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freecon(con);
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}
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/* /sbin/init context */
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if (getpidcon(1, &con) == 0) {
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printf(COL_FMT "%s\n", "Init context:", con);
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if (ENABLE_FEATURE_CLEAN_UP)
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freecon(con);
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}
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/* [process] context */
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for (i = 0; pc[i] != NULL; i++) {
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pidList = find_pid_by_name(bb_basename(pc[i]));
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if (pidList[0] > 0 && getpidcon(pidList[0], &con) == 0) {
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printf(COL_FMT "%s\n", pc[i], con);
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if (ENABLE_FEATURE_CLEAN_UP)
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freecon(con);
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}
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if (ENABLE_FEATURE_CLEAN_UP)
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free(pidList);
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}
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/* files contexts */
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puts("\nFile contexts:");
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cterm = ttyname(0);
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puts(cterm);
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if (cterm && lgetfilecon(cterm, &con) >= 0) {
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printf(COL_FMT "%s\n", "Controlling term:", con);
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if (ENABLE_FEATURE_CLEAN_UP)
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freecon(con);
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}
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for (i=0; fc[i] != NULL; i++) {
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struct stat stbuf;
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if (lgetfilecon(fc[i], &con) < 0)
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continue;
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if (lstat(fc[i], &stbuf) == 0) {
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if (S_ISLNK(stbuf.st_mode)) {
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if (getfilecon(fc[i], &_con) >= 0) {
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printf(COL_FMT "%s -> %s\n", fc[i], _con, con);
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if (ENABLE_FEATURE_CLEAN_UP)
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freecon(_con);
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}
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} else {
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printf(COL_FMT "%s\n", fc[i], con);
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}
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}
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if (ENABLE_FEATURE_CLEAN_UP)
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freecon(con);
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}
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}
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int sestatus_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int sestatus_main(int argc ATTRIBUTE_UNUSED, char **argv)
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{
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unsigned opts;
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const char *pol_path;
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int rc;
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opt_complementary = "?0"; /* no arguments are required. */
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opts = getopt32(argv, "vb");
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/* SELinux status: line */
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rc = is_selinux_enabled();
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if (rc < 0)
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goto error;
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printf(COL_FMT "%s\n", "SELinux status:",
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rc == 1 ? "enabled" : "disabled");
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/* SELinuxfs mount: line */
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if (!selinux_mnt)
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goto error;
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printf(COL_FMT "%s\n", "SELinuxfs mount:",
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selinux_mnt);
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/* Current mode: line */
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rc = security_getenforce();
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if (rc < 0)
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goto error;
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printf(COL_FMT "%s\n", "Current mode:",
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rc == 0 ? "permissive" : "enforcing");
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/* Mode from config file: line */
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if (selinux_getenforcemode(&rc) != 0)
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goto error;
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printf(COL_FMT "%s\n", "Mode from config file:",
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rc < 0 ? "disabled" : (rc == 0 ? "permissive" : "enforcing"));
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/* Policy version: line */
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rc = security_policyvers();
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if (rc < 0)
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goto error;
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printf(COL_FMT "%u\n", "Policy version:", rc);
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/* Policy from config file: line */
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pol_path = selinux_policy_root();
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if (!pol_path)
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goto error;
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printf(COL_FMT "%s\n", "Policy from config file:",
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bb_basename(pol_path));
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if (opts & OPT_BOOLEAN)
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display_boolean();
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if (opts & OPT_VERBOSE)
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display_verbose();
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return 0;
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error:
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bb_perror_msg_and_die("libselinux returns unknown state");
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}
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