1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2014 Tom Gundersen <teg@jklm.no>
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.
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.
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/>.
23 #include <sys/socket.h>
24 #include <linux/netlink.h>
25 #include <linux/rtnetlink.h>
26 #include <linux/in6.h>
27 #include <linux/veth.h>
28 #include <linux/if_bridge.h>
29 #include <linux/if_addr.h>
33 #include <linux/if_link.h>
34 #include <linux/if_tunnel.h>
39 #include "rtnl-types.h"
42 static const NLTypeSystem rtnl_link_type_system;
44 static const NLType rtnl_link_info_data_veth_types[VETH_INFO_MAX + 1] = {
45 [VETH_INFO_PEER] = { .type = NLA_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
48 static const NLType rtnl_link_info_data_ipvlan_types[IFLA_IPVLAN_MAX + 1] = {
49 [IFLA_IPVLAN_MODE] = { .type = NLA_U16 },
52 static const NLType rtnl_link_info_data_macvlan_types[IFLA_MACVLAN_MAX + 1] = {
53 [IFLA_MACVLAN_MODE] = { .type = NLA_U32 },
54 [IFLA_MACVLAN_FLAGS] = { .type = NLA_U16 },
57 static const NLType rtnl_link_info_data_bridge_types[IFLA_BRIDGE_MAX + 1] = {
58 [IFLA_BRIDGE_FLAGS] = { .type = NLA_U16 },
59 [IFLA_BRIDGE_MODE] = { .type = NLA_U16 },
61 [IFLA_BRIDGE_VLAN_INFO] = { .type = NLA_BINARY,
62 .len = sizeof(struct bridge_vlan_info), },
66 static const NLType rtnl_link_info_data_vlan_types[IFLA_VLAN_MAX + 1] = {
67 [IFLA_VLAN_ID] = { .type = NLA_U16 },
69 [IFLA_VLAN_FLAGS] = { .len = sizeof(struct ifla_vlan_flags) },
70 [IFLA_VLAN_EGRESS_QOS] = { .type = NLA_NESTED },
71 [IFLA_VLAN_INGRESS_QOS] = { .type = NLA_NESTED },
73 [IFLA_VLAN_PROTOCOL] = { .type = NLA_U16 },
76 static const NLType rtnl_link_info_data_vxlan_types[IFLA_VXLAN_MAX+1] = {
77 [IFLA_VXLAN_ID] = { .type = NLA_U32 },
78 [IFLA_VXLAN_GROUP] = {.type = NLA_IN_ADDR },
79 [IFLA_VXLAN_LINK] = { .type = NLA_U32 },
80 [IFLA_VXLAN_LOCAL] = { .type = NLA_U32},
81 [IFLA_VXLAN_TTL] = { .type = NLA_U8 },
82 [IFLA_VXLAN_TOS] = { .type = NLA_U8 },
83 [IFLA_VXLAN_LEARNING] = { .type = NLA_U8 },
84 [IFLA_VXLAN_AGEING] = { .type = NLA_U32 },
85 [IFLA_VXLAN_LIMIT] = { .type = NLA_U32 },
86 [IFLA_VXLAN_PORT_RANGE] = { .type = NLA_U32},
87 [IFLA_VXLAN_PROXY] = { .type = NLA_U8 },
88 [IFLA_VXLAN_RSC] = { .type = NLA_U8 },
89 [IFLA_VXLAN_L2MISS] = { .type = NLA_U8 },
90 [IFLA_VXLAN_L3MISS] = { .type = NLA_U8 },
93 static const NLType rtnl_link_info_data_bond_types[IFLA_BOND_MAX + 1] = {
94 [IFLA_BOND_MODE] = { .type = NLA_U8 },
95 [IFLA_BOND_ACTIVE_SLAVE] = { .type = NLA_U32 },
96 [IFLA_BOND_MIIMON] = { .type = NLA_U32 },
97 [IFLA_BOND_UPDELAY] = { .type = NLA_U32 },
98 [IFLA_BOND_DOWNDELAY] = { .type = NLA_U32 },
99 [IFLA_BOND_USE_CARRIER] = { .type = NLA_U8 },
100 [IFLA_BOND_ARP_INTERVAL] = { .type = NLA_U32 },
101 [IFLA_BOND_ARP_IP_TARGET] = { .type = NLA_NESTED },
102 [IFLA_BOND_ARP_VALIDATE] = { .type = NLA_U32 },
103 [IFLA_BOND_ARP_ALL_TARGETS] = { .type = NLA_U32 },
104 [IFLA_BOND_PRIMARY] = { .type = NLA_U32 },
105 [IFLA_BOND_PRIMARY_RESELECT] = { .type = NLA_U8 },
106 [IFLA_BOND_FAIL_OVER_MAC] = { .type = NLA_U8 },
107 [IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 },
108 [IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 },
109 [IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 },
110 [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NLA_U8 },
111 [IFLA_BOND_MIN_LINKS] = { .type = NLA_U32 },
112 [IFLA_BOND_LP_INTERVAL] = { .type = NLA_U32 },
113 [IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NLA_U32 },
114 [IFLA_BOND_AD_LACP_RATE] = { .type = NLA_U8 },
115 [IFLA_BOND_AD_SELECT] = { .type = NLA_U8 },
116 [IFLA_BOND_AD_INFO] = { .type = NLA_NESTED },
119 static const NLType rtnl_link_info_data_iptun_types[IFLA_IPTUN_MAX + 1] = {
120 [IFLA_IPTUN_LINK] = { .type = NLA_U32 },
121 [IFLA_IPTUN_LOCAL] = { .type = NLA_IN_ADDR },
122 [IFLA_IPTUN_REMOTE] = { .type = NLA_IN_ADDR },
123 [IFLA_IPTUN_TTL] = { .type = NLA_U8 },
124 [IFLA_IPTUN_TOS] = { .type = NLA_U8 },
125 [IFLA_IPTUN_PMTUDISC] = { .type = NLA_U8 },
126 [IFLA_IPTUN_FLAGS] = { .type = NLA_U16 },
127 [IFLA_IPTUN_PROTO] = { .type = NLA_U8 },
128 [IFLA_IPTUN_6RD_PREFIX] = { .type = NLA_IN_ADDR },
129 [IFLA_IPTUN_6RD_RELAY_PREFIX] = { .type = NLA_U32 },
130 [IFLA_IPTUN_6RD_PREFIXLEN] = { .type = NLA_U16 },
131 [IFLA_IPTUN_6RD_RELAY_PREFIXLEN] = { .type = NLA_U16 },
134 static const NLType rtnl_link_info_data_ipgre_types[IFLA_GRE_MAX + 1] = {
135 [IFLA_GRE_LINK] = { .type = NLA_U32 },
136 [IFLA_GRE_IFLAGS] = { .type = NLA_U16 },
137 [IFLA_GRE_OFLAGS] = { .type = NLA_U16 },
138 [IFLA_GRE_IKEY] = { .type = NLA_U32 },
139 [IFLA_GRE_OKEY] = { .type = NLA_U32 },
140 [IFLA_GRE_LOCAL] = { .type = NLA_IN_ADDR },
141 [IFLA_GRE_REMOTE] = { .type = NLA_IN_ADDR },
142 [IFLA_GRE_TTL] = { .type = NLA_U8 },
143 [IFLA_GRE_TOS] = { .type = NLA_U8 },
144 [IFLA_GRE_PMTUDISC] = { .type = NLA_U8 },
147 static const NLType rtnl_link_info_data_ipvti_types[IFLA_VTI_MAX + 1] = {
148 [IFLA_VTI_LINK] = { .type = NLA_U32 },
149 [IFLA_VTI_IKEY] = { .type = NLA_U32 },
150 [IFLA_VTI_OKEY] = { .type = NLA_U32 },
151 [IFLA_VTI_LOCAL] = { .type = NLA_IN_ADDR },
152 [IFLA_VTI_REMOTE] = { .type = NLA_IN_ADDR },
155 static const NLType rtnl_link_info_data_ip6tnl_types[IFLA_IPTUN_MAX + 1] = {
156 [IFLA_IPTUN_LINK] = { .type = NLA_U32 },
157 [IFLA_IPTUN_LOCAL] = { .type = NLA_IN_ADDR },
158 [IFLA_IPTUN_REMOTE] = { .type = NLA_IN_ADDR },
159 [IFLA_IPTUN_TTL] = { .type = NLA_U8 },
160 [IFLA_IPTUN_FLAGS] = { .type = NLA_U32 },
161 [IFLA_IPTUN_PROTO] = { .type = NLA_U8 },
162 [IFLA_IPTUN_ENCAP_LIMIT] = { .type = NLA_U8 },
163 [IFLA_IPTUN_FLOWINFO] = { .type = NLA_U32},
166 /* these strings must match the .kind entries in the kernel */
167 static const char* const nl_union_link_info_data_table[_NL_UNION_LINK_INFO_DATA_MAX] = {
168 [NL_UNION_LINK_INFO_DATA_BOND] = "bond",
169 [NL_UNION_LINK_INFO_DATA_BRIDGE] = "bridge",
170 [NL_UNION_LINK_INFO_DATA_VLAN] = "vlan",
171 [NL_UNION_LINK_INFO_DATA_VETH] = "veth",
172 [NL_UNION_LINK_INFO_DATA_DUMMY] = "dummy",
173 [NL_UNION_LINK_INFO_DATA_MACVLAN] = "macvlan",
174 [NL_UNION_LINK_INFO_DATA_IPVLAN] = "ipvlan",
175 [NL_UNION_LINK_INFO_DATA_VXLAN] = "vxlan",
176 [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = "ipip",
177 [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = "gre",
178 [NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = "gretap",
179 [NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = "ip6gre",
180 [NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = "ip6gretap",
181 [NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = "sit",
182 [NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = "vti",
183 [NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = "ip6tnl",
186 DEFINE_STRING_TABLE_LOOKUP(nl_union_link_info_data, NLUnionLinkInfoData);
188 static const NLTypeSystem rtnl_link_info_data_type_systems[_NL_UNION_LINK_INFO_DATA_MAX] = {
189 [NL_UNION_LINK_INFO_DATA_BOND] = { .max = ELEMENTSOF(rtnl_link_info_data_bond_types) - 1,
190 .types = rtnl_link_info_data_bond_types },
191 [NL_UNION_LINK_INFO_DATA_BRIDGE] = { .max = ELEMENTSOF(rtnl_link_info_data_bridge_types) - 1,
192 .types = rtnl_link_info_data_bridge_types },
193 [NL_UNION_LINK_INFO_DATA_VLAN] = { .max = ELEMENTSOF(rtnl_link_info_data_vlan_types) - 1,
194 .types = rtnl_link_info_data_vlan_types },
195 [NL_UNION_LINK_INFO_DATA_VETH] = { .max = ELEMENTSOF(rtnl_link_info_data_veth_types) - 1,
196 .types = rtnl_link_info_data_veth_types },
197 [NL_UNION_LINK_INFO_DATA_MACVLAN] = { .max = ELEMENTSOF(rtnl_link_info_data_macvlan_types) - 1,
198 .types = rtnl_link_info_data_macvlan_types },
199 [NL_UNION_LINK_INFO_DATA_IPVLAN] = { .max = ELEMENTSOF(rtnl_link_info_data_ipvlan_types) - 1,
200 .types = rtnl_link_info_data_ipvlan_types },
201 [NL_UNION_LINK_INFO_DATA_VXLAN] = { .max = ELEMENTSOF(rtnl_link_info_data_vxlan_types) - 1,
202 .types = rtnl_link_info_data_vxlan_types },
203 [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_iptun_types) - 1,
204 .types = rtnl_link_info_data_iptun_types },
205 [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_ipgre_types) - 1,
206 .types = rtnl_link_info_data_ipgre_types },
207 [NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_ipgre_types) - 1,
208 .types = rtnl_link_info_data_ipgre_types },
209 [NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_ipgre_types) - 1,
210 .types = rtnl_link_info_data_ipgre_types },
211 [NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_ipgre_types) - 1,
212 .types = rtnl_link_info_data_ipgre_types },
213 [NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_iptun_types) - 1,
214 .types = rtnl_link_info_data_iptun_types },
215 [NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_ipvti_types) - 1,
216 .types = rtnl_link_info_data_ipvti_types },
217 [NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_ip6tnl_types) - 1,
218 .types = rtnl_link_info_data_ip6tnl_types },
222 static const NLTypeSystemUnion rtnl_link_info_data_type_system_union = {
223 .num = _NL_UNION_LINK_INFO_DATA_MAX,
224 .lookup = nl_union_link_info_data_from_string,
225 .type_systems = rtnl_link_info_data_type_systems,
226 .match_type = NL_MATCH_SIBLING,
227 .match = IFLA_INFO_KIND,
230 static const NLType rtnl_link_info_types[IFLA_INFO_MAX + 1] = {
231 [IFLA_INFO_KIND] = { .type = NLA_STRING },
232 [IFLA_INFO_DATA] = { .type = NLA_UNION, .type_system_union = &rtnl_link_info_data_type_system_union},
235 [IFLA_INFO_SLAVE_KIND] = { .type = NLA_STRING },
236 [IFLA_INFO_SLAVE_DATA] = { .type = NLA_NESTED },
240 static const NLTypeSystem rtnl_link_info_type_system = {
241 .max = ELEMENTSOF(rtnl_link_info_types) - 1,
242 .types = rtnl_link_info_types,
245 static const struct NLType rtnl_prot_info_bridge_port_types[IFLA_BRPORT_MAX + 1] = {
246 [IFLA_BRPORT_STATE] = { .type = NLA_U8 },
247 [IFLA_BRPORT_COST] = { .type = NLA_U32 },
248 [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
249 [IFLA_BRPORT_MODE] = { .type = NLA_U8 },
250 [IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
251 [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
252 [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
253 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
256 static const NLTypeSystem rtnl_prot_info_type_systems[AF_MAX] = {
257 [AF_BRIDGE] = { .max = ELEMENTSOF(rtnl_prot_info_bridge_port_types) - 1,
258 .types = rtnl_prot_info_bridge_port_types },
261 static const NLTypeSystemUnion rtnl_prot_info_type_system_union = {
263 .type_systems = rtnl_prot_info_type_systems,
264 .match_type = NL_MATCH_PROTOCOL,
267 static const struct NLType rtnl_af_spec_inet6_types[IFLA_INET6_MAX + 1] = {
268 [IFLA_INET6_FLAGS] = { .type = NLA_U32 },
273 IFLA_INET6_CACHEINFO,
274 IFLA_INET6_ICMP6STATS,
276 [IFLA_INET6_TOKEN] = { .type = NLA_IN_ADDR },
277 [IFLA_INET6_ADDR_GEN_MODE] = { .type = NLA_U8 },
280 static const NLTypeSystem rtnl_af_spec_inet6_type_system = {
281 .max = ELEMENTSOF(rtnl_af_spec_inet6_types) - 1,
282 .types = rtnl_af_spec_inet6_types,
285 static const NLType rtnl_af_spec_types[AF_MAX + 1] = {
286 [AF_INET6] = { .type = NLA_NESTED, .type_system = &rtnl_af_spec_inet6_type_system },
289 static const NLTypeSystem rtnl_af_spec_type_system = {
290 .max = ELEMENTSOF(rtnl_af_spec_types) - 1,
291 .types = rtnl_af_spec_types,
294 static const NLType rtnl_link_types[IFLA_MAX + 1 ] = {
295 [IFLA_ADDRESS] = { .type = NLA_ETHER_ADDR, },
296 [IFLA_BROADCAST] = { .type = NLA_ETHER_ADDR, },
297 [IFLA_IFNAME] = { .type = NLA_STRING, .size = IFNAMSIZ - 1, },
298 [IFLA_MTU] = { .type = NLA_U32 },
299 [IFLA_LINK] = { .type = NLA_U32 },
306 [IFLA_MASTER] = { .type = NLA_U32 },
310 [IFLA_PROTINFO] = { .type = NLA_UNION, .type_system_union = &rtnl_prot_info_type_system_union },
311 [IFLA_TXQLEN] = { .type = NLA_U32 },
313 [IFLA_MAP] = { .len = sizeof(struct rtnl_link_ifmap) },
315 [IFLA_WEIGHT] = { .type = NLA_U32 },
316 [IFLA_OPERSTATE] = { .type = NLA_U8 },
317 [IFLA_LINKMODE] = { .type = NLA_U8 },
318 [IFLA_LINKINFO] = { .type = NLA_NESTED, .type_system = &rtnl_link_info_type_system },
319 [IFLA_NET_NS_PID] = { .type = NLA_U32 },
320 [IFLA_IFALIAS] = { .type = NLA_STRING, .size = IFALIASZ - 1 },
323 [IFLA_VFINFO_LIST] = {. type = NLA_NESTED, },
325 [IFLA_VF_PORTS] = { .type = NLA_NESTED },
326 [IFLA_PORT_SELF] = { .type = NLA_NESTED },
328 [IFLA_AF_SPEC] = { .type = NLA_NESTED, .type_system = &rtnl_af_spec_type_system },
334 [IFLA_GROUP] = { .type = NLA_U32 },
335 [IFLA_NET_NS_FD] = { .type = NLA_U32 },
336 [IFLA_EXT_MASK] = { .type = NLA_U32 },
337 [IFLA_PROMISCUITY] = { .type = NLA_U32 },
338 [IFLA_NUM_TX_QUEUES] = { .type = NLA_U32 },
339 [IFLA_NUM_RX_QUEUES] = { .type = NLA_U32 },
340 [IFLA_CARRIER] = { .type = NLA_U8 },
342 [IFLA_PHYS_PORT_ID] = { .type = NLA_BINARY, .len = MAX_PHYS_PORT_ID_LEN },
346 static const NLTypeSystem rtnl_link_type_system = {
347 .max = ELEMENTSOF(rtnl_link_types) - 1,
348 .types = rtnl_link_types,
351 static const NLType rtnl_address_types[IFA_MAX + 1] = {
352 [IFA_ADDRESS] = { .type = NLA_IN_ADDR },
353 [IFA_LOCAL] = { .type = NLA_IN_ADDR },
354 [IFA_LABEL] = { .type = NLA_STRING, .size = IFNAMSIZ - 1 },
355 [IFA_BROADCAST] = { .type = NLA_IN_ADDR }, /* 6? */
356 [IFA_CACHEINFO] = { .type = NLA_CACHE_INFO, .size = sizeof(struct ifa_cacheinfo) },
361 [IFA_FLAGS] = { .type = NLA_U32 },
364 static const NLTypeSystem rtnl_address_type_system = {
365 .max = ELEMENTSOF(rtnl_address_types) - 1,
366 .types = rtnl_address_types,
369 static const NLType rtnl_route_types[RTA_MAX + 1] = {
370 [RTA_DST] = { .type = NLA_IN_ADDR }, /* 6? */
371 [RTA_SRC] = { .type = NLA_IN_ADDR }, /* 6? */
372 [RTA_IIF] = { .type = NLA_U32 },
373 [RTA_OIF] = { .type = NLA_U32 },
374 [RTA_GATEWAY] = { .type = NLA_IN_ADDR },
375 [RTA_PRIORITY] = { .type = NLA_U32 },
376 [RTA_PREFSRC] = { .type = NLA_IN_ADDR }, /* 6? */
378 [RTA_METRICS] = { .type = NLA_NESTED },
379 [RTA_MULTIPATH] = { .len = sizeof(struct rtnexthop) },
381 [RTA_FLOW] = { .type = NLA_U32 }, /* 6? */
390 static const NLTypeSystem rtnl_route_type_system = {
391 .max = ELEMENTSOF(rtnl_route_types) - 1,
392 .types = rtnl_route_types,
395 static const NLType rtnl_neigh_types[NDA_MAX + 1] = {
396 [NDA_DST] = { .type = NLA_IN_ADDR },
397 [NDA_LLADDR] = { .type = NLA_ETHER_ADDR },
398 [NDA_CACHEINFO] = { .type = NLA_CACHE_INFO, .size = sizeof(struct nda_cacheinfo) },
399 [NDA_PROBES] = { .type = NLA_U32 },
400 [NDA_VLAN] = { .type = NLA_U16 },
401 [NDA_PORT] = { .type = NLA_U16 },
402 [NDA_VNI] = { .type = NLA_U32 },
403 [NDA_IFINDEX] = { .type = NLA_U32 },
406 static const NLTypeSystem rtnl_neigh_type_system = {
407 .max = ELEMENTSOF(rtnl_neigh_types) - 1,
408 .types = rtnl_neigh_types,
411 static const NLType rtnl_types[RTM_MAX + 1] = {
412 [NLMSG_DONE] = { .type = NLA_META, .size = 0 },
413 [NLMSG_ERROR] = { .type = NLA_META, .size = sizeof(struct nlmsgerr) },
414 [RTM_NEWLINK] = { .type = NLA_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
415 [RTM_DELLINK] = { .type = NLA_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
416 [RTM_GETLINK] = { .type = NLA_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
417 [RTM_SETLINK] = { .type = NLA_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
418 [RTM_NEWADDR] = { .type = NLA_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
419 [RTM_DELADDR] = { .type = NLA_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
420 [RTM_GETADDR] = { .type = NLA_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
421 [RTM_NEWROUTE] = { .type = NLA_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
422 [RTM_DELROUTE] = { .type = NLA_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
423 [RTM_GETROUTE] = { .type = NLA_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
424 [RTM_NEWNEIGH] = { .type = NLA_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
425 [RTM_DELNEIGH] = { .type = NLA_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
426 [RTM_GETNEIGH] = { .type = NLA_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
429 const NLTypeSystem rtnl_type_system = {
430 .max = ELEMENTSOF(rtnl_types) - 1,
434 int type_system_get_type(const NLTypeSystem *type_system, const NLType **ret, uint16_t type) {
435 const NLType *nl_type;
440 type_system = &rtnl_type_system;
442 assert(type_system->types);
444 if (type > type_system->max)
447 nl_type = &type_system->types[type];
449 if (nl_type->type == NLA_UNSPEC)
457 int type_system_get_type_system(const NLTypeSystem *type_system, const NLTypeSystem **ret, uint16_t type) {
458 const NLType *nl_type;
463 r = type_system_get_type(type_system, &nl_type, type);
467 assert(nl_type->type == NLA_NESTED);
468 assert(nl_type->type_system);
470 *ret = nl_type->type_system;
475 int type_system_get_type_system_union(const NLTypeSystem *type_system, const NLTypeSystemUnion **ret, uint16_t type) {
476 const NLType *nl_type;
481 r = type_system_get_type(type_system, &nl_type, type);
485 assert(nl_type->type == NLA_UNION);
486 assert(nl_type->type_system_union);
488 *ret = nl_type->type_system_union;
493 int type_system_union_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, const char *key) {
496 assert(type_system_union);
497 assert(type_system_union->match_type == NL_MATCH_SIBLING);
498 assert(type_system_union->lookup);
499 assert(type_system_union->type_systems);
503 type = type_system_union->lookup(key);
507 assert(type < type_system_union->num);
509 *ret = &type_system_union->type_systems[type];
514 int type_system_union_protocol_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, uint16_t protocol) {
515 const NLTypeSystem *type_system;
517 assert(type_system_union);
518 assert(type_system_union->type_systems);
519 assert(type_system_union->match_type == NL_MATCH_PROTOCOL);
522 if (protocol >= type_system_union->num)
525 type_system = &type_system_union->type_systems[protocol];
526 if (type_system->max == 0)