block dbus ipc

1 files changed, 64 insertions, 1 deletions

diff --git a/src/firejail/fs.c b/src/firejail/fs.c
index 9a2f4facc..d71478fc0 100644
--- a/src/firejail/fs.c
+++ b/src/firejail/fs.c
@@ -225,7 +225,7 @@ static void globbing(OPERATION op, const char *pattern, const char *noblacklist[
 }
 
 
-// blacklist files or directoies by mounting empty files on top of them
+// blacklist files or directories by mounting empty files on top of them
 void fs_blacklist(void) {
         char *homedir = cfg.homedir;
         assert(homedir);
@@ -530,6 +530,69 @@ void fs_proc_sys_dev_boot(void) {
         
         // disable /dev/port
         disable_file(BLACKLIST_FILE, "/dev/port");
+
+
+        // WARNING: this is not reliable. When services like gpg-agent are started after the jail, the sockets are not blacklisted
+        
+        // disable various ipc sockets
+        struct stat s;
+        
+        // disable /run/user/{uid}/bus
+        char *fnamebus;
+        if (asprintf(&fnamebus, "/run/user/%d/bus", getuid()) == -1)
+            errExit("asprintf");
+        if (stat(fnamebus, &s) == 0)
+            disable_file(BLACKLIST_FILE, fnamebus);
+        free(fnamebus);
+
+        // disable /run/user/{uid}/gnupg
+        char *fnamegpg;
+        if (asprintf(&fnamegpg, "/run/user/%d/gnupg", getuid()) == -1)
+            errExit("asprintf");
+        if (stat(fnamegpg, &s) == 0)
+            disable_file(BLACKLIST_FILE, fnamegpg);
+        free(fnamegpg);
+
+        // disable /run/user/{uid}/systemd
+        char *fnamesysd;
+        if (asprintf(&fnamesysd, "/run/user/%d/systemd", getuid()) == -1)
+            errExit("asprintf");
+        if (stat(fnamesysd, &s) == 0)
+            disable_file(BLACKLIST_FILE, fnamesysd);
+        free(fnamesysd);
+
+
+        // WARNING: not working
+        // disable /run/user/{uid}/kdeinit*
+        //char *fnamekde;
+        //if (asprintf(&fnamekde, "/run/user/%d/kdeinit*", getuid()) == -1)
+        //    errExit("asprintf");
+        //if (stat(fnamekde, &s) == 0)
+        //    disable_file(BLACKLIST_FILE, fnamekde);
+        //free(fnamekde);
+        
+        
+        // disable /run/user/{uid}/pulse
+        /* char *fnamepulse; */
+        /* if (asprintf(&fnamepulse, "/run/user/%d/pulse", getuid()) == -1) */
+        /*     errExit("asprintf"); */
+        /* if (stat(fnamepulse, &s) == 0) */
+        /*     disable_file(BLACKLIST_FILE, fnamepulse); */
+        /* free(fnamepulse); */
+
+        // disable /run/user/{uid}/dconf
+        /* char *fnamedconf; */
+        /* if (asprintf(&fnamedconf, "/run/user/%d/dconf", getuid()) == -1) */
+        /*     errExit("asprintf"); */
+        /* if (stat(fnamedconf, &s) == 0) */
+        /*     disable_file(BLACKLIST_FILE, fnamedconf); */
+        /* free(fnamedconf); */
+
+        
+        //more files with sockets to be blacklisted
+        //  /run/dbus /run/systemd /run/udev /run/lvm
+
+        
         
         if (getuid() != 0) {
                 // disable /dev/kmsg and /proc/kmsg