diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/firejail/dbus.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/firejail/dbus.c b/src/firejail/dbus.c new file mode 100644 index 000000000..eee3e2a35 --- /dev/null +++ b/src/firejail/dbus.c | |||
@@ -0,0 +1,58 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2014-2018 Firejail Authors | ||
3 | * | ||
4 | * This file is part of firejail project | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License along | ||
17 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
19 | */ | ||
20 | #include "firejail.h" | ||
21 | |||
22 | void dbus_session_disable(void) { | ||
23 | char *path; | ||
24 | if (asprintf(&path, "/run/user/%d/bus", getuid()) == -1) | ||
25 | errExit("asprintf"); | ||
26 | char *env_var; | ||
27 | if (asprintf(&env_var, "DBUS_SESSION_BUS_ADDRESS=unix:path=%s", path) == -1) | ||
28 | errExit("asprintf"); | ||
29 | |||
30 | // set a new environment variable: DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/<UID>/bus | ||
31 | if (setenv("DBUS_SESSION_BUS_ADDRESS", env_var, 1) == -1) { | ||
32 | fprintf(stderr, "Error: cannot modify DBUS_SESSION_BUS_ADDRESS required by --nodbus\n"); | ||
33 | exit(1); | ||
34 | } | ||
35 | |||
36 | // blacklist the path | ||
37 | disable_file_or_dir(path); | ||
38 | free(path); | ||
39 | free(env_var); | ||
40 | |||
41 | // look for a possible abstract unix socket | ||
42 | |||
43 | // --net=none | ||
44 | if (arg_nonetwork) | ||
45 | return; | ||
46 | |||
47 | // --net=eth0 | ||
48 | if (any_bridge_configured()) | ||
49 | return; | ||
50 | |||
51 | // --protocol=unix | ||
52 | #ifdef HAVE_SECCOMP | ||
53 | if (cfg.protocol && !strstr(cfg.protocol, "unix")) | ||
54 | return; | ||
55 | #endif | ||
56 | |||
57 | fwarning("An abstract unix socket for session D-BUS might still be available. Use --net or remove unix from --protocol set.\n"); | ||
58 | } | ||