705eaf8b4
Denis Vlasenko
2007-11-22
Subject
sestatus: new SELinux applet (KaiGai Kohei
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Commit Diff GitHub →
include/applets.h +1 -0include/usage.h +6 -0selinux/Config.in +7 -0selinux/Kbuild +1 -0selinux/sestatus.c +219 -0
include/applets.h+1 -0
| @@ -300,6 +300,7 @@ USE_RX(APPLET(rx, _BB_DIR_USR_BIN, _BB_SUID_NEVER)) | |
| USE_SED(APPLET(sed, _BB_DIR_BIN, _BB_SUID_NEVER)) | |
| USE_SELINUXENABLED(APPLET(selinuxenabled, _BB_DIR_USR_SBIN, _BB_SUID_NEVER)) | |
| USE_SEQ(APPLET_NOFORK(seq, seq, _BB_DIR_USR_BIN, _BB_SUID_NEVER, seq)) | |
| + | USE_SESTATUS(APPLET(sestatus, _BB_DIR_USR_SBIN, _BB_SUID_NEVER)) |
| USE_SETARCH(APPLET(setarch, _BB_DIR_BIN, _BB_SUID_NEVER)) | |
| USE_SETCONSOLE(APPLET(setconsole, _BB_DIR_SBIN, _BB_SUID_NEVER)) | |
| USE_SETENFORCE(APPLET(setenforce, _BB_DIR_USR_SBIN, _BB_SUID_NEVER)) | |
include/usage.h+6 -0
| @@ -3121,6 +3121,12 @@ USE_FEATURE_RUN_PARTS_FANCY("\n -l Prints names of all matching files even when | |
| " FIRST LAST\n" \ | |
| " FIRST INCREMENT LAST" | |
| + | #define sestatus_trivial_usage \ |
| + | "[-vb]" |
| + | #define sestatus_full_usage \ |
| + | "-v Verbose\n" \ |
| + | "-b Display current state of booleans" |
| + | |
| #define setconsole_trivial_usage \ | |
| "[-r" USE_FEATURE_SETCONSOLE_LONG_OPTIONS("|--reset") "] [DEVICE]" | |
| #define setconsole_full_usage \ | |
selinux/Config.in+7 -0
| @@ -112,5 +112,12 @@ config SETSEBOOL | |
| Enable support for change boolean. | |
| semanage and -P option is not supported yet. | |
| + | config SESTATUS |
| + | bool "sestatus" |
| + | default n |
| + | depends on SELINUX |
| + | help |
| + | Displays the status of SELinux. |
| + | |
| endmenu | |
selinux/Kbuild+1 -0
| @@ -17,3 +17,4 @@ lib-$(CONFIG_SETENFORCE) += setenforce.o | |
| lib-$(CONFIG_SETFILES) += setfiles.o | |
| lib-$(CONFIG_RESTORECON) += setfiles.o | |
| lib-$(CONFIG_SETSEBOOL) += setsebool.o | |
| + | lib-$(CONFIG_SESTATUS) += sestatus.o |
selinux/sestatus.c+219 -0
| @@ -0,0 +1,219 @@ | |
| + | /* |
| + | * sestatus -- displays the status of SELinux |
| + | * |
| + | * Ported to busybox: KaiGai Kohei <[email protected]> |
| + | * |
| + | * Copyright (C) KaiGai Kohei <[email protected]> |
| + | */ |
| + | |
| + | #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"); |
| + | } |