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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-11-22 01:10:41 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-11-22 01:10:41 +0000
commit705eaf8b403555741cf6313a76da8597ae54d324 (patch)
treed3b8d2f5a5bad99368e3dc50a4e55d2fca22cebf /selinux/sestatus.c
parent9cdfd14223e58a73b2005ca8b432af439c8fe197 (diff)
downloadbusybox-705eaf8b403555741cf6313a76da8597ae54d324.tar.gz
busybox-705eaf8b403555741cf6313a76da8597ae54d324.tar.bz2
sestatus: new SELinux applet (KaiGai Kohei <kaigai@ak.jp.nec.com>)
Diffstat (limited to 'selinux/sestatus.c')
-rw-r--r--selinux/sestatus.c219
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");
+}