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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2014 Susant Sahani | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <netinet/ether.h> | |
23 | #include <arpa/inet.h> | |
24 | #include <net/if.h> | |
25 | #include <linux/ip.h> | |
26 | #include <linux/if_tunnel.h> | |
27 | #include <libkmod.h> | |
28 | ||
29 | #include "util.h" | |
30 | #include "macro.h" | |
31 | #include "sd-rtnl.h" | |
32 | #include "socket-util.h" | |
33 | #include "rtnl-util.h" | |
34 | #include "event-util.h" | |
35 | #include "rtnl-internal.h" | |
36 | ||
37 | static int load_module(const char *mod_name) { | |
38 | struct kmod_ctx *ctx; | |
39 | struct kmod_list *list = NULL, *l; | |
40 | int r; | |
41 | ||
42 | ctx = kmod_new(NULL, NULL); | |
43 | if (!ctx) { | |
44 | kmod_unref(ctx); | |
45 | return -ENOMEM; | |
46 | } | |
47 | ||
48 | r = kmod_module_new_from_lookup(ctx, mod_name, &list); | |
49 | if (r < 0) | |
50 | return -1; | |
51 | ||
52 | kmod_list_foreach(l, list) { | |
53 | struct kmod_module *mod = kmod_module_get_module(l); | |
54 | ||
55 | r = kmod_module_probe_insert_module(mod, 0, NULL, NULL, NULL, NULL); | |
56 | if (r >= 0) | |
57 | r = 0; | |
58 | else | |
59 | r = -1; | |
60 | ||
61 | kmod_module_unref(mod); | |
62 | } | |
63 | ||
64 | kmod_module_unref_list(list); | |
65 | kmod_unref(ctx); | |
66 | ||
67 | return r; | |
68 | } | |
69 | ||
70 | static int test_tunnel_configure(sd_rtnl *rtnl) { | |
71 | int r; | |
72 | sd_rtnl_message *m, *n; | |
73 | struct in_addr local, remote; | |
74 | ||
75 | /* skip test if module cannot be loaded */ | |
76 | r = load_module("ipip"); | |
77 | if(r < 0) | |
78 | return EXIT_TEST_SKIP; | |
79 | ||
80 | if(getuid() != 0) | |
81 | return EXIT_TEST_SKIP; | |
82 | ||
83 | /* IPIP tunnel */ | |
84 | assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_NEWLINK, 0) >= 0); | |
85 | assert_se(m); | |
86 | ||
87 | assert_se(sd_rtnl_message_append_string(m, IFLA_IFNAME, "eth0") >= 0); | |
88 | assert_se(sd_rtnl_message_append_u32(m, IFLA_MTU, 1234)>= 0); | |
89 | ||
90 | assert_se(sd_rtnl_message_open_container(m, IFLA_LINKINFO) >= 0); | |
91 | assert_se(sd_rtnl_message_append_string(m, IFLA_INFO_KIND, "ipip") >= 0); | |
92 | ||
93 | assert_se(sd_rtnl_message_open_container(m, IFLA_INFO_DATA) >= 0); | |
94 | ||
95 | inet_pton(AF_INET, "192.168.21.1", &local.s_addr); | |
96 | assert_se(sd_rtnl_message_append_u32(m, IFLA_IPTUN_LOCAL, local.s_addr) >= 0); | |
97 | ||
98 | inet_pton(AF_INET, "192.168.21.2", &remote.s_addr); | |
99 | assert_se(sd_rtnl_message_append_u32(m, IFLA_IPTUN_REMOTE, remote.s_addr) >= 0); | |
100 | ||
101 | assert_se(sd_rtnl_message_close_container(m) >= 0); | |
102 | assert_se(sd_rtnl_message_close_container(m) >= 0); | |
103 | ||
104 | assert_se(sd_rtnl_call(rtnl, m, -1, 0) == 1); | |
105 | ||
106 | assert_se((m = sd_rtnl_message_unref(m)) == NULL); | |
107 | ||
108 | r = load_module("sit"); | |
109 | if(r < 0) | |
110 | return EXIT_TEST_SKIP; | |
111 | ||
112 | /* sit */ | |
113 | assert_se(sd_rtnl_message_new_link(rtnl, &n, RTM_NEWLINK, 0) >= 0); | |
114 | assert_se(n); | |
115 | ||
116 | assert_se(sd_rtnl_message_append_string(n, IFLA_IFNAME, "eth1") >= 0); | |
117 | assert_se(sd_rtnl_message_append_u32(n, IFLA_MTU, 1234)>= 0); | |
118 | ||
119 | assert_se(sd_rtnl_message_open_container(n, IFLA_LINKINFO) >= 0); | |
120 | assert_se(sd_rtnl_message_append_string(n, IFLA_INFO_KIND, "sit") >= 0); | |
121 | ||
122 | assert_se(sd_rtnl_message_open_container(n, IFLA_INFO_DATA) >= 0); | |
123 | ||
124 | assert_se(sd_rtnl_message_append_u8(n, IFLA_IPTUN_PROTO, IPPROTO_IPIP) >= 0); | |
125 | ||
126 | inet_pton(AF_INET, "192.168.21.3", &local.s_addr); | |
127 | assert_se(sd_rtnl_message_append_u32(n, IFLA_IPTUN_LOCAL, local.s_addr) >= 0); | |
128 | ||
129 | inet_pton(AF_INET, "192.168.21.4", &remote.s_addr); | |
130 | assert_se(sd_rtnl_message_append_u32(n, IFLA_IPTUN_REMOTE, remote.s_addr) >= 0); | |
131 | ||
132 | assert_se(sd_rtnl_message_close_container(n) >= 0); | |
133 | assert_se(sd_rtnl_message_close_container(n) >= 0); | |
134 | ||
135 | assert_se(sd_rtnl_call(rtnl, n, -1, 0) == 1); | |
136 | ||
137 | assert_se((m = sd_rtnl_message_unref(n)) == NULL); | |
138 | ||
139 | return EXIT_SUCCESS; | |
140 | } | |
141 | ||
142 | int main(int argc, char *argv[]) { | |
143 | sd_rtnl *rtnl; | |
144 | int r; | |
145 | ||
146 | assert_se(sd_rtnl_open(&rtnl, 0) >= 0); | |
147 | assert_se(rtnl); | |
148 | ||
149 | r = test_tunnel_configure(rtnl); | |
150 | ||
151 | assert_se((rtnl = sd_rtnl_unref(rtnl)) == NULL); | |
152 | ||
153 | return r; | |
154 | } |