diff options
Diffstat (limited to 'src/faudit/network.c')
-rw-r--r-- | src/faudit/network.c | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/src/faudit/network.c b/src/faudit/network.c deleted file mode 100644 index 8e799dc19..000000000 --- a/src/faudit/network.c +++ /dev/null | |||
@@ -1,101 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2014-2021 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 <arpa/inet.h> | ||
23 | #include <linux/netlink.h> | ||
24 | #include <linux/rtnetlink.h> | ||
25 | |||
26 | static void check_ssh(void) { | ||
27 | // open socket | ||
28 | int sock = socket(AF_INET, SOCK_STREAM, 0); | ||
29 | if (sock == -1) { | ||
30 | printf("GOOD: SSH server not available on localhost.\n"); | ||
31 | return; | ||
32 | } | ||
33 | |||
34 | // connect to localhost | ||
35 | struct sockaddr_in server; | ||
36 | server.sin_addr.s_addr = inet_addr("127.0.0.1"); | ||
37 | server.sin_family = AF_INET; | ||
38 | server.sin_port = htons(22); | ||
39 | |||
40 | if (connect(sock , (struct sockaddr *)&server , sizeof(server)) < 0) | ||
41 | printf("GOOD: SSH server not available on localhost.\n"); | ||
42 | else { | ||
43 | printf("MAYBE: an SSH server is accessible on localhost. "); | ||
44 | printf("It could be a good idea to create a new network namespace using \"--net=none\" or \"--net=eth0\".\n"); | ||
45 | } | ||
46 | |||
47 | close(sock); | ||
48 | } | ||
49 | |||
50 | static void check_http(void) { | ||
51 | // open socket | ||
52 | int sock = socket(AF_INET, SOCK_STREAM, 0); | ||
53 | if (sock == -1) { | ||
54 | printf("GOOD: HTTP server not available on localhost.\n"); | ||
55 | return; | ||
56 | } | ||
57 | |||
58 | // connect to localhost | ||
59 | struct sockaddr_in server; | ||
60 | server.sin_addr.s_addr = inet_addr("127.0.0.1"); | ||
61 | server.sin_family = AF_INET; | ||
62 | server.sin_port = htons(80); | ||
63 | |||
64 | if (connect(sock , (struct sockaddr *)&server , sizeof(server)) < 0) | ||
65 | printf("GOOD: HTTP server not available on localhost.\n"); | ||
66 | else { | ||
67 | printf("MAYBE: an HTTP server is accessible on localhost. "); | ||
68 | printf("It could be a good idea to create a new network namespace using \"--net=none\" or \"--net=eth0\".\n"); | ||
69 | } | ||
70 | |||
71 | close(sock); | ||
72 | } | ||
73 | |||
74 | void check_netlink(void) { | ||
75 | int sock = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, 0); | ||
76 | if (sock == -1) { | ||
77 | printf("GOOD: I cannot connect to netlink socket. Network utilities such as iproute2 will not work in the sandbox.\n"); | ||
78 | return; | ||
79 | } | ||
80 | |||
81 | struct sockaddr_nl local; | ||
82 | memset(&local, 0, sizeof(local)); | ||
83 | local.nl_family = AF_NETLINK; | ||
84 | local.nl_groups = 0; //subscriptions; | ||
85 | |||
86 | if (bind(sock, (struct sockaddr*)&local, sizeof(local)) < 0) { | ||
87 | printf("GOOD: I cannot connect to netlink socket. Network utilities such as iproute2 will not work in the sandbox.\n"); | ||
88 | close(sock); | ||
89 | return; | ||
90 | } | ||
91 | |||
92 | close(sock); | ||
93 | printf("MAYBE: I can connect to netlink socket. Network utilities such as iproute2 will work fine in the sandbox. "); | ||
94 | printf("You can use \"--protocol\" to disable the socket.\n"); | ||
95 | } | ||
96 | |||
97 | void network_test(void) { | ||
98 | check_ssh(); | ||
99 | check_http(); | ||
100 | check_netlink(); | ||
101 | } | ||