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 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;
+}