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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 2013 Tom Gundersen <teg@jklm.no> | |
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 <net/if.h> | |
23 | ||
24 | #include "networkd.h" | |
25 | ||
26 | #include "utf8.h" | |
27 | #include "util.h" | |
28 | #include "conf-parser.h" | |
29 | #include "net-util.h" | |
30 | ||
31 | int route_new(Network *network, Route **ret) { | |
32 | _cleanup_route_free_ Route *route = NULL; | |
33 | ||
34 | route = new0(Route, 1); | |
35 | if (!route) | |
36 | return -ENOMEM; | |
37 | ||
38 | route->network = network; | |
39 | ||
40 | LIST_PREPEND(routes, network->routes, route); | |
41 | ||
42 | *ret = route; | |
43 | route = NULL; | |
44 | ||
45 | return 0; | |
46 | } | |
47 | ||
48 | void route_free(Route *route) { | |
49 | if (!route) | |
50 | return; | |
51 | ||
52 | LIST_REMOVE(routes, route->network->routes, route); | |
53 | ||
54 | free(route); | |
55 | } | |
56 | ||
57 | int route_configure(Manager *manager, Route *route, Link *link) { | |
58 | _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req = NULL; | |
59 | int r; | |
60 | ||
61 | assert(manager); | |
62 | assert(link); | |
63 | assert(link->ifindex > 0); | |
64 | assert(route->family == AF_INET || route->family == AF_INET6); | |
65 | ||
66 | r = sd_rtnl_message_route_new(RTM_NEWROUTE, route->family, 0, 0, 0, | |
67 | RT_TABLE_MAIN, RT_SCOPE_UNIVERSE, RTPROT_BOOT, | |
68 | RTN_UNICAST, 0, &req); | |
69 | if (r < 0) { | |
70 | log_error("Could not create RTM_NEWROUTE message: %s", strerror(-r)); | |
71 | return r; | |
72 | } | |
73 | ||
74 | r = sd_rtnl_message_append(req, RTA_GATEWAY, &route->in_addr); | |
75 | if (r < 0) { | |
76 | log_error("Could not append RTA_GATEWAY attribute: %s", strerror(-r)); | |
77 | return r; | |
78 | } | |
79 | ||
80 | r = sd_rtnl_message_append(req, RTA_OIF, &link->ifindex); | |
81 | if (r < 0) { | |
82 | log_error("Could not append RTA_OIF attribute: %s", strerror(-r)); | |
83 | return r; | |
84 | } | |
85 | ||
86 | r = sd_rtnl_send_with_reply_and_block(manager->rtnl, req, 0, NULL); | |
87 | if (r < 0) { | |
88 | log_error("Could not configure route: %s", strerror(-r)); | |
89 | return r; | |
90 | } | |
91 | ||
92 | log_info("Configured route"); | |
93 | ||
94 | return 0; | |
95 | } | |
96 | ||
97 | int config_parse_gateway(const char *unit, | |
98 | const char *filename, | |
99 | unsigned line, | |
100 | const char *section, | |
101 | const char *lvalue, | |
102 | int ltype, | |
103 | const char *rvalue, | |
104 | void *data, | |
105 | void *userdata) { | |
106 | _cleanup_route_free_ Route *n = NULL; | |
107 | _cleanup_free_ char *route = NULL; | |
108 | int r; | |
109 | ||
110 | assert(filename); | |
111 | assert(lvalue); | |
112 | assert(rvalue); | |
113 | assert(data); | |
114 | ||
115 | r = route_new(userdata, &n); | |
116 | if (r < 0) | |
117 | return r; | |
118 | ||
119 | r = net_parse_inaddr(rvalue, &n->family, &n->in_addr); | |
120 | if (r < 0) { | |
121 | log_syntax(unit, LOG_ERR, filename, line, EINVAL, | |
122 | "Route is invalid, ignoring assignment: %s", route); | |
123 | return 0; | |
124 | } | |
125 | ||
126 | n = NULL; | |
127 | ||
128 | return 0; | |
129 | } |