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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-02-06 19:28:50 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-02-06 19:28:50 +0000
commitd46d3c292e9aff0550f6540ab631d742fe353964 (patch)
tree05f6461f18eba790a90a971c41ddb91163ae7847
parentb292264bfd7064b651192b966f30d76b75161c70 (diff)
downloadbusybox-d46d3c292e9aff0550f6540ab631d742fe353964.tar.gz
busybox-d46d3c292e9aff0550f6540ab631d742fe353964.tar.bz2
new applets: selinux utils by KaiGai Kohei <kaigai@kaigai.gr.jp>
-rw-r--r--Config.in1
-rw-r--r--Makefile1
-rw-r--r--Makefile.flags4
-rw-r--r--include/applets.h5
-rw-r--r--include/libbb.h1
-rw-r--r--include/usage.h44
-rw-r--r--libbb/xfuncs.c15
-rw-r--r--selinux/Config.in47
-rw-r--r--selinux/Kbuild13
-rw-r--r--selinux/getenforce.c33
-rw-r--r--selinux/getsebool.c65
-rw-r--r--selinux/matchpathcon.c85
-rw-r--r--selinux/selinuxenabled.c13
-rw-r--r--selinux/setenforce.c44
14 files changed, 361 insertions, 10 deletions
diff --git a/Config.in b/Config.in
index c5f8b3c0f..d15b2673a 100644
--- a/Config.in
+++ b/Config.in
@@ -493,3 +493,4 @@ source procps/Config.in
source shell/Config.in
source sysklogd/Config.in
source runit/Config.in
+source selinux/Config.in
diff --git a/Makefile b/Makefile
index 0e0fef95b..ddc8b25e6 100644
--- a/Makefile
+++ b/Makefile
@@ -442,6 +442,7 @@ libs-y := \
networking/udhcp/ \
procps/ \
runit/ \
+ selinux/ \
shell/ \
sysklogd/ \
util-linux/ \
diff --git a/Makefile.flags b/Makefile.flags
index e4ca7c6c5..b7711f698 100644
--- a/Makefile.flags
+++ b/Makefile.flags
@@ -54,4 +54,8 @@ endif
ifeq ($(CONFIG_STATIC),y)
LDFLAGS += -static
endif
+
+ifeq ($(CONFIG_SELINUX),y)
+LDFLAGS += -lselinux -lsepol
+endif
#LDFLAGS += -nostdlib
diff --git a/include/applets.h b/include/applets.h
index 397a8b789..d1bf0f36b 100644
--- a/include/applets.h
+++ b/include/applets.h
@@ -133,7 +133,9 @@ USE_FSCK_MINIX(APPLET_ODDNAME(fsck.minix, fsck_minix, _BB_DIR_SBIN, _BB_SUID_NEV
USE_FTPGET(APPLET_ODDNAME(ftpget, ftpgetput, _BB_DIR_USR_BIN, _BB_SUID_NEVER,ftpget))
USE_FTPPUT(APPLET_ODDNAME(ftpput, ftpgetput, _BB_DIR_USR_BIN, _BB_SUID_NEVER,ftpput))
USE_FUSER(APPLET(fuser, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
+USE_GETENFORCE(APPLET(getenforce, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
USE_GETOPT(APPLET(getopt, _BB_DIR_BIN, _BB_SUID_NEVER))
+USE_GETSEBOOL(APPLET(getsebool, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
USE_GETTY(APPLET(getty, _BB_DIR_SBIN, _BB_SUID_NEVER))
USE_GREP(APPLET(grep, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_GUNZIP(APPLET(gunzip, _BB_DIR_BIN, _BB_SUID_NEVER))
@@ -187,6 +189,7 @@ USE_LS(APPLET(ls, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_LSATTR(APPLET(lsattr, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_LSMOD(APPLET(lsmod, _BB_DIR_SBIN, _BB_SUID_NEVER))
USE_UNLZMA(APPLET_ODDNAME(lzmacat, unlzma, _BB_DIR_USR_BIN, _BB_SUID_NEVER, lzmacat))
+USE_MATCHPATHCON(APPLET(matchpathcon, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
USE_MAKEDEVS(APPLET(makedevs, _BB_DIR_SBIN, _BB_SUID_NEVER))
USE_MD5SUM(APPLET_ODDNAME(md5sum, md5_sha1_sum, _BB_DIR_USR_BIN, _BB_SUID_NEVER, md5sum))
USE_MDEV(APPLET(mdev, _BB_DIR_SBIN, _BB_SUID_NEVER))
@@ -249,10 +252,12 @@ USE_RUNLEVEL(APPLET(runlevel, _BB_DIR_SBIN, _BB_SUID_NEVER))
USE_RUNSV(APPLET(runsv, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_RUNSVDIR(APPLET(runsvdir, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_RX(APPLET(rx, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
+USE_SELINUXENABLED(APPLET(selinuxenabled, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
USE_SED(APPLET(sed, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_SEQ(APPLET(seq, _BB_DIR_USR_BIN, _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))
USE_SETKEYCODES(APPLET(setkeycodes, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_SETLOGCONS(APPLET(setlogcons, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
USE_SETSID(APPLET(setsid, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
diff --git a/include/libbb.h b/include/libbb.h
index babb39ba9..d6f08ff73 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -592,6 +592,7 @@ extern void run_shell(const char *shell, int loginshell, const char *command, co
extern void renew_current_security_context(void);
extern void set_current_security_context(security_context_t sid);
#endif
+extern void selinux_or_die(void);
extern int restricted_shell(const char *shell);
extern void setup_environment(const char *shell, int loginshell, int changeenv, const struct passwd *pw);
extern int correct_password(const struct passwd *pw);
diff --git a/include/usage.h b/include/usage.h
index 4ba540ccb..17dcf9be9 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -1013,6 +1013,9 @@
" -6 When using port/proto only search IPv6 space\n" \
" -SIGNAL When used with -k, this signal will be used to kill"
+#define getenforce_trivial_usage
+#define getenforce_full_usage
+
#define getopt_trivial_usage \
"[OPTIONS]..."
#define getopt_full_usage \
@@ -1047,6 +1050,11 @@
" esac\n" \
"done\n"
+#define getsebool_trivial_usage \
+ "-a or getsebool boolean..."
+#define getsebool_full_usage \
+ " -a Show all SELinux booleans"
+
#define getty_trivial_usage \
"[OPTIONS]... baud_rate,... line [termtype]"
#define getty_full_usage \
@@ -1896,6 +1904,15 @@
"/dev/hda[0-15]\n"
#endif
+#define matchpathcon_trivial_usage \
+ "[-n] [-N] [-f file_contexts_file] [-p prefix] [-V]"
+#define matchpathcon_full_usage \
+ " -n Do not display path" \
+ "\n -N Do not use translations" \
+ "\n -f Use alternate file_context file" \
+ "\n -p Use prefix to speed translations" \
+ "\n -V Verify file context on disk matches defaults"
+
#define md5sum_trivial_usage \
"[OPTION] [FILEs...]" \
USE_FEATURE_MD5_SHA1_SUM_CHECK("\n or: md5sum [OPTION] -c [FILE]")
@@ -2714,6 +2731,9 @@
"$ echo \"foo\" | sed -e 's/f[a-zA-Z]o/bar/g'\n" \
"bar\n"
+#define selinuxenabled_trivial_usage
+#define selinuxenabled_full_usage
+
#define seq_trivial_usage \
"[first [increment]] last"
#define seq_full_usage \
@@ -2731,6 +2751,10 @@
"\n\nOptions:\n" \
" -r Reset output to /dev/console"
+#define setenforce_trivial_usage \
+ "[ Enforcing | Permissive | 1 | 0 ]"
+#define setenforce_full_usage
+
#define setkeycodes_trivial_usage \
"SCANCODE KEYCODE ..."
#define setkeycodes_full_usage \
@@ -3449,12 +3473,12 @@
#define vconfig_full_usage \
"Create and remove virtual ethernet devices" \
"\n\nOptions:\n" \
- " add [interface-name] [vlan_id]\n" \
- " rem [vlan-name]\n" \
- " set_flag [interface-name] [flag-num] [0 | 1]\n" \
- " set_egress_map [vlan-name] [skb_priority] [vlan_qos]\n" \
- " set_ingress_map [vlan-name] [skb_priority] [vlan_qos]\n" \
- " set_name_type [name-type]"
+ " add [interface-name] [vlan_id]\n" \
+ " rem [vlan-name]\n" \
+ " set_flag [interface-name] [flag-num] [0 | 1]\n" \
+ " set_egress_map [vlan-name] [skb_priority] [vlan_qos]\n" \
+ " set_ingress_map [vlan-name] [skb_priority] [vlan_qos]\n" \
+ " set_name_type [name-type]"
#define vi_trivial_usage \
"[OPTION] [FILE]..."
@@ -3569,9 +3593,9 @@
#define zcip_full_usage \
"Manage a ZeroConf IPv4 link-local address" \
"\n\nOptions:\n" \
- " -f foreground mode\n" \
- " -q quit after address (no daemon)\n" \
- " -r 169.254.x.x request this address first\n" \
- " -v verbose"
+ " -f Foreground mode\n" \
+ " -q Quit after address (no daemon)\n" \
+ " -r 169.254.x.x Request this address first\n" \
+ " -v Verbose"
#endif /* __BB_USAGE_H__ */
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index 3cbb0d3eb..f6444bbc6 100644
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -570,6 +570,21 @@ void xstat(const char *name, struct stat *stat_buf)
bb_perror_msg_and_die("can't stat '%s'", name);
}
+// selinux_or_die() - die if SELinux is disabled.
+void selinux_or_die(void)
+{
+#if ENABLE_SELINUX
+ int rc = is_selinux_enabled();
+ if (rc == 0) {
+ bb_error_msg_and_die("SELinux is disabled");
+ } else if (rc < 0) {
+ bb_error_msg_and_die("is_selinux_enabled() failed");
+ }
+#else
+ bb_error_msg_and_die("SELinux support is disabled");
+#endif
+}
+
/* It is perfectly ok to pass in a NULL for either width or for
* height, in which case that value will not be set. */
int get_terminal_width_height(const int fd, int *width, int *height)
diff --git a/selinux/Config.in b/selinux/Config.in
new file mode 100644
index 000000000..b078ee59e
--- /dev/null
+++ b/selinux/Config.in
@@ -0,0 +1,47 @@
+#
+# For a description of the syntax of this configuration file,
+# see scripts/kbuild/config-language.txt.
+#
+
+menu "Selinux Utilities"
+ depends on SELINUX
+
+config GETENFORCE
+ bool "getenforce"
+ default n
+ depends on SELINUX
+ help
+ Enable support to get the current mode of SELinux.
+
+config GETSEBOOL
+ bool "getsebool"
+ default n
+ depends on SELINUX
+ help
+ Enable support to get SELinux boolean values.
+
+config MATCHPATHCON
+ bool "matchpathcon"
+ default n
+ depends on SELINUX
+ help
+ Enable support to get default security context of the
+ specified path from the file contexts configuration.
+
+config SELINUXENABLED
+ bool "selinuxenabled"
+ default n
+ depends on SELINUX
+ help
+ Enable support for this command to be used within shell scripts
+ to determine if selinux is enabled.
+
+config SETENFORCE
+ bool "setenforce"
+ default n
+ depends on SELINUX
+ help
+ Enable support to modify the mode SELinux is running in.
+
+endmenu
+
diff --git a/selinux/Kbuild b/selinux/Kbuild
new file mode 100644
index 000000000..8371df8e4
--- /dev/null
+++ b/selinux/Kbuild
@@ -0,0 +1,13 @@
+# Makefile for busybox
+#
+# Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
+# Copyright (C) 2007 by KaiGai Kohei <kaigai@kaigai.gr.jp>
+#
+# Licensed under the GPL v2, see the file LICENSE in this tarball.
+
+lib-y:=
+lib-$(CONFIG_GETENFORCE) += getenforce.o
+lib-$(CONFIG_GETSEBOOL) += getsebool.o
+lib-$(CONFIG_MATCHPATHCON) += matchpathcon.o
+lib-$(CONFIG_SELINUXENABLED) += selinuxenabled.o
+lib-$(CONFIG_SETENFORCE) += setenforce.o
diff --git a/selinux/getenforce.c b/selinux/getenforce.c
new file mode 100644
index 000000000..e240e4dca
--- /dev/null
+++ b/selinux/getenforce.c
@@ -0,0 +1,33 @@
+/*
+ * getenforce
+ *
+ * Based on libselinux 1.33.1
+ * Port to BusyBox Hiroshi Shinji <shiroshi@my.email.ne.jp>
+ *
+ */
+
+#include "busybox.h"
+
+int getenforce_main(int argc, char **argv)
+{
+ int rc;
+
+ rc = is_selinux_enabled();
+ if (rc < 0)
+ bb_error_msg_and_die("is_selinux_enabled() failed");
+
+ if (rc == 1) {
+ rc = security_getenforce();
+ if (rc < 0)
+ bb_error_msg_and_die("getenforce() failed");
+
+ if (rc)
+ puts("Enforcing");
+ else
+ puts("Permissive");
+ } else {
+ puts("Disabled");
+ }
+
+ return 0;
+}
diff --git a/selinux/getsebool.c b/selinux/getsebool.c
new file mode 100644
index 000000000..d593937ba
--- /dev/null
+++ b/selinux/getsebool.c
@@ -0,0 +1,65 @@
+/*
+ * getsebool
+ *
+ * Based on libselinux 1.33.1
+ * Port to BusyBox Hiroshi Shinji <shiroshi@my.email.ne.jp>
+ *
+ */
+
+#include "busybox.h"
+
+int getsebool_main(int argc, char **argv)
+{
+ int i, rc = 0, active, pending, len = 0;
+ char **names;
+ unsigned opt;
+
+ selinux_or_die();
+ opt = getopt32(argc, argv, "a");
+
+ if (opt) { /* -a */
+ if (argc > 2)
+ bb_show_usage();
+
+ rc = security_get_boolean_names(&names, &len);
+ if (rc)
+ bb_perror_msg_and_die("cannot get boolean names");
+
+ if (!len) {
+ puts("No booleans");
+ return 0;
+ }
+ }
+
+ if (!len) {
+ if (argc < 2)
+ bb_show_usage();
+ len = argc - 1;
+ names = xmalloc(sizeof(char *) * len);
+ for (i = 0; i < len; i++)
+ names[i] = xstrdup(argv[i + 1]);
+ }
+
+ for (i = 0; i < len; i++) {
+ active = security_get_boolean_active(names[i]);
+ if (active < 0) {
+ bb_error_msg_and_die("error getting active value for %s", names[i]);
+ }
+ pending = security_get_boolean_pending(names[i]);
+ if (pending < 0) {
+ bb_error_msg_and_die("error getting pending value for %s", names[i]);
+ }
+ printf("%s --> %s", names[i], (active ? "on" : "off"));
+ if (pending != active)
+ printf(" pending: %s", (pending ? "on" : "off"));
+ putchar('\n');
+ }
+
+ if (ENABLE_FEATURE_CLEAN_UP) {
+ for (i = 0; i < len; i++)
+ free(names[i]);
+ free(names);
+ }
+
+ return rc;
+}
diff --git a/selinux/matchpathcon.c b/selinux/matchpathcon.c
new file mode 100644
index 000000000..4fa95b0ef
--- /dev/null
+++ b/selinux/matchpathcon.c
@@ -0,0 +1,85 @@
+/* matchpathcon - get the default security context for the specified
+ * path from the file contexts configuration.
+ * based on libselinux-1.32
+ * Port to busybox: KaiGai Kohei <kaigai@kaigai.gr.jp>
+ *
+ */
+#include "busybox.h"
+
+static int print_matchpathcon(char *path, int noprint)
+{
+ char *buf;
+ int rc = matchpathcon(path, 0, &buf);
+ if (rc < 0) {
+ bb_perror_msg("matchpathcon(%s) failed", path);
+ return 1;
+ }
+ if (!noprint)
+ printf("%s\t%s\n", path, buf);
+ else
+ printf("%s\n", buf);
+
+ freecon(buf);
+ return 0;
+}
+
+#define OPT_NOT_PRINT (1<<0) /* -n */
+#define OPT_NOT_TRANS (1<<1) /* -N */
+#define OPT_FCONTEXT (1<<2) /* -f */
+#define OPT_PREFIX (1<<3) /* -p */
+#define OPT_VERIFY (1<<4) /* -V */
+
+int matchpathcon_main(int argc, char **argv)
+{
+ int error = 0;
+ unsigned opts;
+ char *fcontext, *prefix, *path;
+
+ opt_complementary = "-1:" /* at least one param reqd */
+ "f--p:p--f"; /* mutually exclusive */
+ opts = getopt32(argc, argv, "nNf:p:V", &fcontext, &prefix);
+ argv += optind;
+
+ if (opts & OPT_NOT_TRANS) {
+ set_matchpathcon_flags(NOTRANS);
+ }
+ if (opts & OPT_FCONTEXT) {
+ if (matchpathcon_init(fcontext))
+ bb_perror_msg_and_die("error while processing %s", fcontext);
+ }
+ if (opts & OPT_PREFIX) {
+ if (matchpathcon_init_prefix(NULL, prefix))
+ bb_perror_msg_and_die("error while processing %s", prefix);
+ }
+
+ while((path = *argv++) != NULL) {
+ security_context_t con;
+ int rc;
+
+ if (!(opts & OPT_VERIFY)) {
+ error += print_matchpathcon(path, opt & OPT_NOT_PRINT);
+ continue;
+ }
+
+ if (selinux_file_context_verify(path, 0)) {
+ printf("%s verified\n", path);
+ continue;
+ }
+
+ if (opts & OPT_NOT_TRANS)
+ rc = lgetfilecon_raw(path, &con);
+ else
+ rc = lgetfilecon(path, &con);
+
+ if (rc >= 0) {
+ printf("%s has context %s, should be ", path, con);
+ error += print_matchpathcon(path, 1);
+ freecon(con);
+ continue;
+ }
+ printf("actual context unknown: %s, should be ", strerror(errno));
+ error += print_matchpathcon(path, 1);
+ }
+ matchpathcon_fini();
+ return error;
+}
diff --git a/selinux/selinuxenabled.c b/selinux/selinuxenabled.c
new file mode 100644
index 000000000..b34228098
--- /dev/null
+++ b/selinux/selinuxenabled.c
@@ -0,0 +1,13 @@
+/*
+ * selinuxenabled
+ *
+ * Based on libselinux 1.33.1
+ * Port to BusyBox Hiroshi Shinji <shiroshi@my.email.ne.jp>
+ *
+ */
+#include "busybox.h"
+
+int selinuxenabled_main(int argc, char **argv)
+{
+ return !is_selinux_enabled();
+}
diff --git a/selinux/setenforce.c b/selinux/setenforce.c
new file mode 100644
index 000000000..670e30086
--- /dev/null
+++ b/selinux/setenforce.c
@@ -0,0 +1,44 @@
+/*
+ * setenforce
+ *
+ * Based on libselinux 1.33.1
+ * Port to BusyBox Hiroshi Shinji <shiroshi@my.email.ne.jp>
+ *
+ */
+
+#include "busybox.h"
+
+static const smallint setenforce_mode[] = {
+ 0,
+ 1,
+ 0,
+ 1,
+};
+static const char *const setenforce_cmd[] = {
+ "0",
+ "1",
+ "permissive",
+ "enforcing",
+ NULL,
+};
+
+int setenforce_main(int argc, char **argv)
+{
+ int i, rc;
+
+ if (argc != 2)
+ bb_show_usage();
+
+ selinux_or_die();
+
+ for (i = 0; setenforce_cmd[i]; i++) {
+ if (strcasecmp(argv[1], setenforce_cmd[i]) != 0)
+ continue;
+ rc = security_setenforce(setenforce_mode[i]);
+ if (rc < 0)
+ bb_perror_msg_and_die("setenforce() failed");
+ return 0;
+ }
+
+ bb_show_usage();
+}