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00019 #include <netlink-local.h>
00020 #include <netlink/netlink.h>
00021 #include <netlink/cache.h>
00022 #include <netlink/utils.h>
00023 #include <netlink/data.h>
00024 #include <netlink/route/rtnl.h>
00025 #include <netlink/route/route.h>
00026 #include <netlink/route/link.h>
00027
00028 static struct nl_cache_ops rtnl_route_ops;
00029
00030 static int route_msg_parser(struct nl_cache_ops *ops, struct sockaddr_nl *who,
00031 struct nlmsghdr *nlh, struct nl_parser_param *pp)
00032 {
00033 struct rtnl_route *route;
00034 int err;
00035
00036 if ((err = rtnl_route_parse(nlh, &route)) < 0)
00037 return err;
00038
00039 err = pp->pp_cb((struct nl_object *) route, pp);
00040
00041 rtnl_route_put(route);
00042 return err;
00043 }
00044
00045 static int route_request_update(struct nl_cache *c, struct nl_sock *h)
00046 {
00047 struct rtmsg rhdr = {
00048 .rtm_family = c->c_iarg1,
00049 };
00050
00051 if (c->c_iarg2 & ROUTE_CACHE_CONTENT)
00052 rhdr.rtm_flags |= RTM_F_CLONED;
00053
00054 return nl_send_simple(h, RTM_GETROUTE, NLM_F_DUMP, &rhdr, sizeof(rhdr));
00055 }
00056
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00074
00075 int rtnl_route_alloc_cache(struct nl_sock *sk, int family, int flags,
00076 struct nl_cache **result)
00077 {
00078 struct nl_cache *cache;
00079 int err;
00080
00081 if (!(cache = nl_cache_alloc(&rtnl_route_ops)))
00082 return -NLE_NOMEM;
00083
00084 cache->c_iarg1 = family;
00085 cache->c_iarg2 = flags;
00086
00087 if (sk && (err = nl_cache_refill(sk, cache)) < 0) {
00088 free(cache);
00089 return err;
00090 }
00091
00092 *result = cache;
00093 return 0;
00094 }
00095
00096
00097
00098
00099
00100
00101
00102
00103 static int build_route_msg(struct rtnl_route *tmpl, int cmd, int flags,
00104 struct nl_msg **result)
00105 {
00106 struct nl_msg *msg;
00107 int err;
00108
00109 if (!(msg = nlmsg_alloc_simple(cmd, flags)))
00110 return -NLE_NOMEM;
00111
00112 if ((err = rtnl_route_build_msg(msg, tmpl)) < 0) {
00113 nlmsg_free(msg);
00114 return err;
00115 }
00116
00117 *result = msg;
00118 return 0;
00119 }
00120
00121 int rtnl_route_build_add_request(struct rtnl_route *tmpl, int flags,
00122 struct nl_msg **result)
00123 {
00124 return build_route_msg(tmpl, RTM_NEWROUTE, NLM_F_CREATE | flags,
00125 result);
00126 }
00127
00128 int rtnl_route_add(struct nl_sock *sk, struct rtnl_route *route, int flags)
00129 {
00130 struct nl_msg *msg;
00131 int err;
00132
00133 if ((err = rtnl_route_build_add_request(route, flags, &msg)) < 0)
00134 return err;
00135
00136 err = nl_send_auto_complete(sk, msg);
00137 nlmsg_free(msg);
00138 if (err < 0)
00139 return err;
00140
00141 return wait_for_ack(sk);
00142 }
00143
00144 int rtnl_route_build_del_request(struct rtnl_route *tmpl, int flags,
00145 struct nl_msg **result)
00146 {
00147 return build_route_msg(tmpl, RTM_DELROUTE, flags, result);
00148 }
00149
00150 int rtnl_route_delete(struct nl_sock *sk, struct rtnl_route *route, int flags)
00151 {
00152 struct nl_msg *msg;
00153 int err;
00154
00155 if ((err = rtnl_route_build_del_request(route, flags, &msg)) < 0)
00156 return err;
00157
00158 err = nl_send_auto_complete(sk, msg);
00159 nlmsg_free(msg);
00160 if (err < 0)
00161 return err;
00162
00163 return wait_for_ack(sk);
00164 }
00165
00166
00167
00168 static struct nl_af_group route_groups[] = {
00169 { AF_INET, RTNLGRP_IPV4_ROUTE },
00170 { AF_INET6, RTNLGRP_IPV6_ROUTE },
00171 { AF_DECnet, RTNLGRP_DECnet_ROUTE },
00172 { END_OF_GROUP_LIST },
00173 };
00174
00175 static struct nl_cache_ops rtnl_route_ops = {
00176 .co_name = "route/route",
00177 .co_hdrsize = sizeof(struct rtmsg),
00178 .co_msgtypes = {
00179 { RTM_NEWROUTE, NL_ACT_NEW, "new" },
00180 { RTM_DELROUTE, NL_ACT_DEL, "del" },
00181 { RTM_GETROUTE, NL_ACT_GET, "get" },
00182 END_OF_MSGTYPES_LIST,
00183 },
00184 .co_protocol = NETLINK_ROUTE,
00185 .co_groups = route_groups,
00186 .co_request_update = route_request_update,
00187 .co_msg_parser = route_msg_parser,
00188 .co_obj_ops = &route_obj_ops,
00189 };
00190
00191 static void __init route_init(void)
00192 {
00193 nl_cache_mngt_register(&rtnl_route_ops);
00194 }
00195
00196 static void __exit route_exit(void)
00197 {
00198 nl_cache_mngt_unregister(&rtnl_route_ops);
00199 }
00200
00201