diff options
Diffstat (limited to 'src/faudit/dbus.c')
-rw-r--r-- | src/faudit/dbus.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/faudit/dbus.c b/src/faudit/dbus.c new file mode 100644 index 000000000..d92660536 --- /dev/null +++ b/src/faudit/dbus.c | |||
@@ -0,0 +1,95 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2014-2016 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 "faudit.h" | ||
21 | #include <sys/socket.h> | ||
22 | #include <sys/un.h> | ||
23 | |||
24 | // return 0 if the connection is possible | ||
25 | int check_unix(const char *sockfile) { | ||
26 | assert(sockfile); | ||
27 | int rv = -1; | ||
28 | |||
29 | // open socket | ||
30 | int sock = socket(AF_UNIX, SOCK_STREAM, 0); | ||
31 | if (sock == -1) | ||
32 | return rv; | ||
33 | |||
34 | // connect | ||
35 | struct sockaddr_un remote; | ||
36 | memset(&remote, 0, sizeof(struct sockaddr_un)); | ||
37 | remote.sun_family = AF_UNIX; | ||
38 | strncpy(remote.sun_path, sockfile, sizeof(remote.sun_path)); | ||
39 | int len = strlen(remote.sun_path) + sizeof(remote.sun_family); | ||
40 | if (*sockfile == '@') | ||
41 | remote.sun_path[0] = '\0'; | ||
42 | if (connect(sock, (struct sockaddr *)&remote, len) == 0) | ||
43 | rv = 0; | ||
44 | |||
45 | close(sock); | ||
46 | return rv; | ||
47 | } | ||
48 | |||
49 | void dbus_test(void) { | ||
50 | // check the session bus | ||
51 | char *str = getenv("DBUS_SESSION_BUS_ADDRESS"); | ||
52 | if (str) { | ||
53 | int rv = 0; | ||
54 | char *bus = strdup(str); | ||
55 | if (!bus) | ||
56 | errExit("strdup"); | ||
57 | char *sockfile; | ||
58 | if ((sockfile = strstr(bus, "unix:abstract=")) != NULL) { | ||
59 | sockfile += 13; | ||
60 | *sockfile = '@'; | ||
61 | char *ptr = strchr(sockfile, ','); | ||
62 | if (ptr) | ||
63 | *ptr = '\0'; | ||
64 | rv = check_unix(sockfile); | ||
65 | *sockfile = '@'; | ||
66 | if (rv == 0) | ||
67 | printf("MAYBE: D-Bus socket %s is available\n", sockfile); | ||
68 | else if (rv == -1) | ||
69 | printf("GOOD: cannot connect to D-Bus socket %s\n", sockfile); | ||
70 | } | ||
71 | else if ((sockfile = strstr(bus, "unix:path=")) != NULL) { | ||
72 | sockfile += 10; | ||
73 | char *ptr = strchr(sockfile, ','); | ||
74 | if (ptr) | ||
75 | *ptr = '\0'; | ||
76 | rv = check_unix(sockfile); | ||
77 | if (rv == 0) | ||
78 | printf("MAYBE: D-Bus socket %s is available\n", sockfile); | ||
79 | else if (rv == -1) | ||
80 | printf("GOOD: cannot connect to D-Bus socket %s\n", sockfile); | ||
81 | } | ||
82 | else if ((sockfile = strstr(bus, "tcp:host=")) != NULL) | ||
83 | printf("UGLY: session bus configured for TCP communication.\n"); | ||
84 | else | ||
85 | printf("GOOD: cannot find a D-Bus socket\n"); | ||
86 | |||
87 | |||
88 | free(bus); | ||
89 | } | ||
90 | else | ||
91 | printf("GOOD: DBUS_SESSION_BUS_ADDRESS environment variable not configured."); | ||
92 | } | ||
93 | |||
94 | |||
95 | |||