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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 }
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00075
00076 int rtnl_route_alloc_cache(struct nl_sock *sk, int family, int flags,
00077 struct nl_cache **result)
00078 {
00079 struct nl_cache *cache;
00080 int err;
00081
00082 if (!(cache = nl_cache_alloc(&rtnl_route_ops)))
00083 return -NLE_NOMEM;
00084
00085 cache->c_iarg1 = family;
00086 cache->c_iarg2 = flags;
00087
00088 if (sk && (err = nl_cache_refill(sk, cache)) < 0) {
00089 free(cache);
00090 return err;
00091 }
00092
00093 *result = cache;
00094 return 0;
00095 }
00096
00097
00098
00099
00100
00101
00102
00103
00104 static int build_route_msg(struct rtnl_route *tmpl, int cmd, int flags,
00105 struct nl_msg **result)
00106 {
00107 struct nl_msg *msg;
00108 int err;
00109
00110 if (!(msg = nlmsg_alloc_simple(cmd, flags)))
00111 return -NLE_NOMEM;
00112
00113 if ((err = rtnl_route_build_msg(msg, tmpl)) < 0) {
00114 nlmsg_free(msg);
00115 return err;
00116 }
00117
00118 *result = msg;
00119 return 0;
00120 }
00121
00122 int rtnl_route_build_add_request(struct rtnl_route *tmpl, int flags,
00123 struct nl_msg **result)
00124 {
00125 return build_route_msg(tmpl, RTM_NEWROUTE, NLM_F_CREATE | flags,
00126 result);
00127 }
00128
00129 int rtnl_route_add(struct nl_sock *sk, struct rtnl_route *route, int flags)
00130 {
00131 struct nl_msg *msg;
00132 int err;
00133
00134 if ((err = rtnl_route_build_add_request(route, flags, &msg)) < 0)
00135 return err;
00136
00137 err = nl_send_auto_complete(sk, msg);
00138 nlmsg_free(msg);
00139 if (err < 0)
00140 return err;
00141
00142 return wait_for_ack(sk);
00143 }
00144
00145 int rtnl_route_build_del_request(struct rtnl_route *tmpl, int flags,
00146 struct nl_msg **result)
00147 {
00148 return build_route_msg(tmpl, RTM_DELROUTE, flags, result);
00149 }
00150
00151 int rtnl_route_delete(struct nl_sock *sk, struct rtnl_route *route, int flags)
00152 {
00153 struct nl_msg *msg;
00154 int err;
00155
00156 if ((err = rtnl_route_build_del_request(route, flags, &msg)) < 0)
00157 return err;
00158
00159 err = nl_send_auto_complete(sk, msg);
00160 nlmsg_free(msg);
00161 if (err < 0)
00162 return err;
00163
00164 return wait_for_ack(sk);
00165 }
00166
00167
00168
00169 static struct nl_af_group route_groups[] = {
00170 { AF_INET, RTNLGRP_IPV4_ROUTE },
00171 { AF_INET6, RTNLGRP_IPV6_ROUTE },
00172 { AF_DECnet, RTNLGRP_DECnet_ROUTE },
00173 { END_OF_GROUP_LIST },
00174 };
00175
00176 static struct nl_cache_ops rtnl_route_ops = {
00177 .co_name = "route/route",
00178 .co_hdrsize = sizeof(struct rtmsg),
00179 .co_msgtypes = {
00180 { RTM_NEWROUTE, NL_ACT_NEW, "new" },
00181 { RTM_DELROUTE, NL_ACT_DEL, "del" },
00182 { RTM_GETROUTE, NL_ACT_GET, "get" },
00183 END_OF_MSGTYPES_LIST,
00184 },
00185 .co_protocol = NETLINK_ROUTE,
00186 .co_groups = route_groups,
00187 .co_request_update = route_request_update,
00188 .co_msg_parser = route_msg_parser,
00189 .co_obj_ops = &route_obj_ops,
00190 };
00191
00192 static void __init route_init(void)
00193 {
00194 nl_cache_mngt_register(&rtnl_route_ops);
00195 }
00196
00197 static void __exit route_exit(void)
00198 {
00199 nl_cache_mngt_unregister(&rtnl_route_ops);
00200 }
00201
00202