[3320] | 1 | /*
|
---|
| 2 | * sestatus -- displays the status of SELinux
|
---|
| 3 | *
|
---|
| 4 | * Ported to busybox: KaiGai Kohei <kaigai@ak.jp.nec.com>
|
---|
| 5 | *
|
---|
| 6 | * Copyright (C) KaiGai Kohei <kaigai@ak.jp.nec.com>
|
---|
| 7 | *
|
---|
| 8 | * Licensed under GPLv2, see file LICENSE in this source tree.
|
---|
| 9 | */
|
---|
| 10 |
|
---|
| 11 | #include "libbb.h"
|
---|
| 12 |
|
---|
| 13 | extern char *selinux_mnt;
|
---|
| 14 |
|
---|
| 15 | #define OPT_VERBOSE (1 << 0)
|
---|
| 16 | #define OPT_BOOLEAN (1 << 1)
|
---|
| 17 |
|
---|
| 18 | #define COL_FMT "%-31s "
|
---|
| 19 |
|
---|
| 20 | static void display_boolean(void)
|
---|
| 21 | {
|
---|
| 22 | char **bools;
|
---|
| 23 | int i, active, pending, nbool;
|
---|
| 24 |
|
---|
| 25 | if (security_get_boolean_names(&bools, &nbool) < 0)
|
---|
| 26 | return;
|
---|
| 27 |
|
---|
| 28 | puts("\nPolicy booleans:");
|
---|
| 29 |
|
---|
| 30 | for (i = 0; i < nbool; i++) {
|
---|
| 31 | active = security_get_boolean_active(bools[i]);
|
---|
| 32 | if (active < 0)
|
---|
| 33 | goto skip;
|
---|
| 34 | pending = security_get_boolean_pending(bools[i]);
|
---|
| 35 | if (pending < 0)
|
---|
| 36 | goto skip;
|
---|
| 37 | printf(COL_FMT "%s",
|
---|
| 38 | bools[i], active == 0 ? "off" : "on");
|
---|
| 39 | if (active != pending)
|
---|
| 40 | printf(" (%sactivate pending)", pending == 0 ? "in" : "");
|
---|
| 41 | bb_putchar('\n');
|
---|
| 42 | skip:
|
---|
| 43 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 44 | free(bools[i]);
|
---|
| 45 | }
|
---|
| 46 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 47 | free(bools);
|
---|
| 48 | }
|
---|
| 49 |
|
---|
| 50 | static void read_config(char **pc, int npc, char **fc, int nfc)
|
---|
| 51 | {
|
---|
| 52 | char *buf;
|
---|
| 53 | parser_t *parser;
|
---|
| 54 | int pc_ofs = 0, fc_ofs = 0, section = -1;
|
---|
| 55 |
|
---|
| 56 | pc[0] = fc[0] = NULL;
|
---|
| 57 |
|
---|
| 58 | parser = config_open("/etc/sestatus.conf");
|
---|
| 59 | while (config_read(parser, &buf, 1, 1, "# \t", PARSE_NORMAL)) {
|
---|
| 60 | if (strcmp(buf, "[process]") == 0) {
|
---|
| 61 | section = 1;
|
---|
| 62 | } else if (strcmp(buf, "[files]") == 0) {
|
---|
| 63 | section = 2;
|
---|
| 64 | } else {
|
---|
| 65 | if (section == 1 && pc_ofs < npc -1) {
|
---|
| 66 | pc[pc_ofs++] = xstrdup(buf);
|
---|
| 67 | pc[pc_ofs] = NULL;
|
---|
| 68 | } else if (section == 2 && fc_ofs < nfc - 1) {
|
---|
| 69 | fc[fc_ofs++] = xstrdup(buf);
|
---|
| 70 | fc[fc_ofs] = NULL;
|
---|
| 71 | }
|
---|
| 72 | }
|
---|
| 73 | }
|
---|
| 74 | config_close(parser);
|
---|
| 75 | }
|
---|
| 76 |
|
---|
| 77 | static void display_verbose(void)
|
---|
| 78 | {
|
---|
| 79 | security_context_t con, _con;
|
---|
| 80 | char *fc[50], *pc[50], *cterm;
|
---|
| 81 | pid_t *pidList;
|
---|
| 82 | int i;
|
---|
| 83 |
|
---|
| 84 | read_config(pc, ARRAY_SIZE(pc), fc, ARRAY_SIZE(fc));
|
---|
| 85 |
|
---|
| 86 | /* process contexts */
|
---|
| 87 | puts("\nProcess contexts:");
|
---|
| 88 |
|
---|
| 89 | /* current context */
|
---|
| 90 | if (getcon(&con) == 0) {
|
---|
| 91 | printf(COL_FMT "%s\n", "Current context:", con);
|
---|
| 92 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 93 | freecon(con);
|
---|
| 94 | }
|
---|
| 95 | /* /sbin/init context */
|
---|
| 96 | if (getpidcon(1, &con) == 0) {
|
---|
| 97 | printf(COL_FMT "%s\n", "Init context:", con);
|
---|
| 98 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 99 | freecon(con);
|
---|
| 100 | }
|
---|
| 101 |
|
---|
| 102 | /* [process] context */
|
---|
| 103 | for (i = 0; pc[i] != NULL; i++) {
|
---|
| 104 | pidList = find_pid_by_name(bb_basename(pc[i]));
|
---|
| 105 | if (pidList[0] > 0 && getpidcon(pidList[0], &con) == 0) {
|
---|
| 106 | printf(COL_FMT "%s\n", pc[i], con);
|
---|
| 107 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 108 | freecon(con);
|
---|
| 109 | }
|
---|
| 110 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 111 | free(pidList);
|
---|
| 112 | }
|
---|
| 113 |
|
---|
| 114 | /* files contexts */
|
---|
| 115 | puts("\nFile contexts:");
|
---|
| 116 |
|
---|
| 117 | cterm = xmalloc_ttyname(0);
|
---|
| 118 | //FIXME: if cterm == NULL, we segfault!??
|
---|
| 119 | puts(cterm);
|
---|
| 120 | if (cterm && lgetfilecon(cterm, &con) >= 0) {
|
---|
| 121 | printf(COL_FMT "%s\n", "Controlling term:", con);
|
---|
| 122 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 123 | freecon(con);
|
---|
| 124 | }
|
---|
| 125 |
|
---|
| 126 | for (i = 0; fc[i] != NULL; i++) {
|
---|
| 127 | struct stat stbuf;
|
---|
| 128 |
|
---|
| 129 | if (lgetfilecon(fc[i], &con) < 0)
|
---|
| 130 | continue;
|
---|
| 131 | if (lstat(fc[i], &stbuf) == 0) {
|
---|
| 132 | if (S_ISLNK(stbuf.st_mode)) {
|
---|
| 133 | if (getfilecon(fc[i], &_con) >= 0) {
|
---|
| 134 | printf(COL_FMT "%s -> %s\n", fc[i], _con, con);
|
---|
| 135 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 136 | freecon(_con);
|
---|
| 137 | }
|
---|
| 138 | } else {
|
---|
| 139 | printf(COL_FMT "%s\n", fc[i], con);
|
---|
| 140 | }
|
---|
| 141 | }
|
---|
| 142 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 143 | freecon(con);
|
---|
| 144 | }
|
---|
| 145 | }
|
---|
| 146 |
|
---|
| 147 | int sestatus_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
| 148 | int sestatus_main(int argc UNUSED_PARAM, char **argv)
|
---|
| 149 | {
|
---|
| 150 | unsigned opts;
|
---|
| 151 | const char *pol_path;
|
---|
| 152 | int rc;
|
---|
| 153 |
|
---|
| 154 | opt_complementary = "?0"; /* no arguments are required. */
|
---|
| 155 | opts = getopt32(argv, "vb");
|
---|
| 156 |
|
---|
| 157 | /* SELinux status: line */
|
---|
| 158 | rc = is_selinux_enabled();
|
---|
| 159 | if (rc < 0)
|
---|
| 160 | goto error;
|
---|
| 161 | printf(COL_FMT "%s\n", "SELinux status:",
|
---|
| 162 | rc == 1 ? "enabled" : "disabled");
|
---|
| 163 |
|
---|
| 164 | /* SELinuxfs mount: line */
|
---|
| 165 | if (!selinux_mnt)
|
---|
| 166 | goto error;
|
---|
| 167 | printf(COL_FMT "%s\n", "SELinuxfs mount:",
|
---|
| 168 | selinux_mnt);
|
---|
| 169 |
|
---|
| 170 | /* Current mode: line */
|
---|
| 171 | rc = security_getenforce();
|
---|
| 172 | if (rc < 0)
|
---|
| 173 | goto error;
|
---|
| 174 | printf(COL_FMT "%s\n", "Current mode:",
|
---|
| 175 | rc == 0 ? "permissive" : "enforcing");
|
---|
| 176 |
|
---|
| 177 | /* Mode from config file: line */
|
---|
| 178 | if (selinux_getenforcemode(&rc) != 0)
|
---|
| 179 | goto error;
|
---|
| 180 | printf(COL_FMT "%s\n", "Mode from config file:",
|
---|
| 181 | rc < 0 ? "disabled" : (rc == 0 ? "permissive" : "enforcing"));
|
---|
| 182 |
|
---|
| 183 | /* Policy version: line */
|
---|
| 184 | rc = security_policyvers();
|
---|
| 185 | if (rc < 0)
|
---|
| 186 | goto error;
|
---|
| 187 | printf(COL_FMT "%u\n", "Policy version:", rc);
|
---|
| 188 |
|
---|
| 189 | /* Policy from config file: line */
|
---|
| 190 | pol_path = selinux_policy_root();
|
---|
| 191 | if (!pol_path)
|
---|
| 192 | goto error;
|
---|
| 193 | printf(COL_FMT "%s\n", "Policy from config file:",
|
---|
| 194 | bb_basename(pol_path));
|
---|
| 195 |
|
---|
| 196 | if (opts & OPT_BOOLEAN)
|
---|
| 197 | display_boolean();
|
---|
| 198 | if (opts & OPT_VERBOSE)
|
---|
| 199 | display_verbose();
|
---|
| 200 |
|
---|
| 201 | return 0;
|
---|
| 202 |
|
---|
| 203 | error:
|
---|
| 204 | bb_perror_msg_and_die("libselinux returns unknown state");
|
---|
| 205 | }
|
---|