1 files changed, 11 insertions, 0 deletions

diff --git a/src/firejail/fs_whitelist.c b/src/firejail/fs_whitelist.c
index 60bb0f6ed..754714943 100644
--- a/src/firejail/fs_whitelist.c
+++ b/src/firejail/fs_whitelist.c
@@ -27,6 +27,12 @@
 #include <fcntl.h>
 #include <errno.h>
 
+// mountinfo functionality test;
+// 1. enable TEST_MOUNTINFO definition
+// 2. set a symlink in /tmp: ln -s /etc /tmp/etc
+// 3. run firejail --debug --whitelist=/tmp/etc
+//#define TEST_MOUNTINFO
+
 static char *dentry[] = {
         "Downloads",
         "Загрузки",
@@ -204,8 +210,10 @@ static void whitelist_path(ProfileEntry *entry) {
         }
         else if (entry->tmp_dir) {
                 fname = path + 5; // strlen("/tmp/")
+#ifndef TEST_MOUNTINFO
                 if (*fname == '\0')
                         goto errexit;
+#endif
 
                 if (asprintf(&wfile, "%s/%s", RUN_WHITELIST_TMP_DIR, fname) == -1)
                         errExit("asprintf");
@@ -516,10 +524,13 @@ void fs_whitelist(void) {
                 else if (strncmp(new_name, "/tmp/", 5) == 0) {
                         entry->tmp_dir = 1;
                         tmp_dir = 1;
+
+#ifndef TEST_MOUNTINFO
                         // both path and absolute path are under /tmp
                         if (strncmp(fname, "/tmp/", 5) != 0) {
                                 goto errexit;
                         }
+#endif
                 }
                 else if (strncmp(new_name, "/media/", 7) == 0) {
                         entry->media_dir = 1;