new applets: selinux utils by KaiGai Kohei <kaigai@kaigai.gr.jp>

1 files changed, 85 insertions, 0 deletions

diff --git a/selinux/matchpathcon.c b/selinux/matchpathcon.c
new file mode 100644
index 0000000..4fa95b0
--- /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;
+}