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 "netlink-types.h"
42 /* Maximum ARP IP target defined in kernel */
43 #define BOND_MAX_ARP_TARGETS 16
61 BOND_ARP_TARGETS_MAX = BOND_MAX_ARP_TARGETS,
67 const NLTypeSystem *type_system;
68 const NLTypeSystemUnion *type_system_union;
76 static const NLTypeSystem rtnl_link_type_system;
78 static const NLType empty_types[1] = {
79 /* fake array to avoid .types==NULL, which denotes invalid type-systems */
82 static const NLTypeSystem empty_type_system = {
87 static const NLType rtnl_link_info_data_veth_types[VETH_INFO_MAX + 1] = {
88 [VETH_INFO_PEER] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
91 static const NLType rtnl_link_info_data_ipvlan_types[IFLA_IPVLAN_MAX + 1] = {
92 [IFLA_IPVLAN_MODE] = { .type = NETLINK_TYPE_U16 },
95 static const NLType rtnl_link_info_data_macvlan_types[IFLA_MACVLAN_MAX + 1] = {
96 [IFLA_MACVLAN_MODE] = { .type = NETLINK_TYPE_U32 },
97 [IFLA_MACVLAN_FLAGS] = { .type = NETLINK_TYPE_U16 },
100 static const NLType rtnl_link_info_data_bridge_types[IFLA_BRIDGE_MAX + 1] = {
101 [IFLA_BRIDGE_FLAGS] = { .type = NETLINK_TYPE_U16 },
102 [IFLA_BRIDGE_MODE] = { .type = NETLINK_TYPE_U16 },
104 [IFLA_BRIDGE_VLAN_INFO] = { .type = NETLINK_TYPE_BINARY,
105 .len = sizeof(struct bridge_vlan_info), },
109 static const NLType rtnl_link_info_data_vlan_types[IFLA_VLAN_MAX + 1] = {
110 [IFLA_VLAN_ID] = { .type = NETLINK_TYPE_U16 },
112 [IFLA_VLAN_FLAGS] = { .len = sizeof(struct ifla_vlan_flags) },
113 [IFLA_VLAN_EGRESS_QOS] = { .type = NETLINK_TYPE_NESTED },
114 [IFLA_VLAN_INGRESS_QOS] = { .type = NETLINK_TYPE_NESTED },
116 [IFLA_VLAN_PROTOCOL] = { .type = NETLINK_TYPE_U16 },
119 static const NLType rtnl_link_info_data_vxlan_types[IFLA_VXLAN_MAX+1] = {
120 [IFLA_VXLAN_ID] = { .type = NETLINK_TYPE_U32 },
121 [IFLA_VXLAN_GROUP] = { .type = NETLINK_TYPE_IN_ADDR },
122 [IFLA_VXLAN_LINK] = { .type = NETLINK_TYPE_U32 },
123 [IFLA_VXLAN_LOCAL] = { .type = NETLINK_TYPE_U32},
124 [IFLA_VXLAN_TTL] = { .type = NETLINK_TYPE_U8 },
125 [IFLA_VXLAN_TOS] = { .type = NETLINK_TYPE_U8 },
126 [IFLA_VXLAN_LEARNING] = { .type = NETLINK_TYPE_U8 },
127 [IFLA_VXLAN_AGEING] = { .type = NETLINK_TYPE_U32 },
128 [IFLA_VXLAN_LIMIT] = { .type = NETLINK_TYPE_U32 },
129 [IFLA_VXLAN_PORT_RANGE] = { .type = NETLINK_TYPE_U32},
130 [IFLA_VXLAN_PROXY] = { .type = NETLINK_TYPE_U8 },
131 [IFLA_VXLAN_RSC] = { .type = NETLINK_TYPE_U8 },
132 [IFLA_VXLAN_L2MISS] = { .type = NETLINK_TYPE_U8 },
133 [IFLA_VXLAN_L3MISS] = { .type = NETLINK_TYPE_U8 },
136 static const NLType rtnl_bond_arp_target_types[BOND_ARP_TARGETS_MAX + 1] = {
137 [BOND_ARP_TARGETS_0] = { .type = NETLINK_TYPE_U32 },
138 [BOND_ARP_TARGETS_1] = { .type = NETLINK_TYPE_U32 },
139 [BOND_ARP_TARGETS_2] = { .type = NETLINK_TYPE_U32 },
140 [BOND_ARP_TARGETS_3] = { .type = NETLINK_TYPE_U32 },
141 [BOND_ARP_TARGETS_4] = { .type = NETLINK_TYPE_U32 },
142 [BOND_ARP_TARGETS_5] = { .type = NETLINK_TYPE_U32 },
143 [BOND_ARP_TARGETS_6] = { .type = NETLINK_TYPE_U32 },
144 [BOND_ARP_TARGETS_7] = { .type = NETLINK_TYPE_U32 },
145 [BOND_ARP_TARGETS_8] = { .type = NETLINK_TYPE_U32 },
146 [BOND_ARP_TARGETS_9] = { .type = NETLINK_TYPE_U32 },
147 [BOND_ARP_TARGETS_10] = { .type = NETLINK_TYPE_U32 },
148 [BOND_ARP_TARGETS_11] = { .type = NETLINK_TYPE_U32 },
149 [BOND_ARP_TARGETS_12] = { .type = NETLINK_TYPE_U32 },
150 [BOND_ARP_TARGETS_13] = { .type = NETLINK_TYPE_U32 },
151 [BOND_ARP_TARGETS_14] = { .type = NETLINK_TYPE_U32 },
152 [BOND_ARP_TARGETS_MAX] = { .type = NETLINK_TYPE_U32 },
155 static const NLTypeSystem rtnl_bond_arp_type_system = {
156 .count = ELEMENTSOF(rtnl_bond_arp_target_types),
157 .types = rtnl_bond_arp_target_types,
160 static const NLType rtnl_link_info_data_bond_types[IFLA_BOND_MAX + 1] = {
161 [IFLA_BOND_MODE] = { .type = NETLINK_TYPE_U8 },
162 [IFLA_BOND_ACTIVE_SLAVE] = { .type = NETLINK_TYPE_U32 },
163 [IFLA_BOND_MIIMON] = { .type = NETLINK_TYPE_U32 },
164 [IFLA_BOND_UPDELAY] = { .type = NETLINK_TYPE_U32 },
165 [IFLA_BOND_DOWNDELAY] = { .type = NETLINK_TYPE_U32 },
166 [IFLA_BOND_USE_CARRIER] = { .type = NETLINK_TYPE_U8 },
167 [IFLA_BOND_ARP_INTERVAL] = { .type = NETLINK_TYPE_U32 },
168 [IFLA_BOND_ARP_IP_TARGET] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_bond_arp_type_system },
169 [IFLA_BOND_ARP_VALIDATE] = { .type = NETLINK_TYPE_U32 },
170 [IFLA_BOND_ARP_ALL_TARGETS] = { .type = NETLINK_TYPE_U32 },
171 [IFLA_BOND_PRIMARY] = { .type = NETLINK_TYPE_U32 },
172 [IFLA_BOND_PRIMARY_RESELECT] = { .type = NETLINK_TYPE_U8 },
173 [IFLA_BOND_FAIL_OVER_MAC] = { .type = NETLINK_TYPE_U8 },
174 [IFLA_BOND_XMIT_HASH_POLICY] = { .type = NETLINK_TYPE_U8 },
175 [IFLA_BOND_RESEND_IGMP] = { .type = NETLINK_TYPE_U32 },
176 [IFLA_BOND_NUM_PEER_NOTIF] = { .type = NETLINK_TYPE_U8 },
177 [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NETLINK_TYPE_U8 },
178 [IFLA_BOND_MIN_LINKS] = { .type = NETLINK_TYPE_U32 },
179 [IFLA_BOND_LP_INTERVAL] = { .type = NETLINK_TYPE_U32 },
180 [IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NETLINK_TYPE_U32 },
181 [IFLA_BOND_AD_LACP_RATE] = { .type = NETLINK_TYPE_U8 },
182 [IFLA_BOND_AD_SELECT] = { .type = NETLINK_TYPE_U8 },
183 [IFLA_BOND_AD_INFO] = { .type = NETLINK_TYPE_NESTED },
186 static const NLType rtnl_link_info_data_iptun_types[IFLA_IPTUN_MAX + 1] = {
187 [IFLA_IPTUN_LINK] = { .type = NETLINK_TYPE_U32 },
188 [IFLA_IPTUN_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
189 [IFLA_IPTUN_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
190 [IFLA_IPTUN_TTL] = { .type = NETLINK_TYPE_U8 },
191 [IFLA_IPTUN_TOS] = { .type = NETLINK_TYPE_U8 },
192 [IFLA_IPTUN_PMTUDISC] = { .type = NETLINK_TYPE_U8 },
193 [IFLA_IPTUN_FLAGS] = { .type = NETLINK_TYPE_U16 },
194 [IFLA_IPTUN_PROTO] = { .type = NETLINK_TYPE_U8 },
195 [IFLA_IPTUN_6RD_PREFIX] = { .type = NETLINK_TYPE_IN_ADDR },
196 [IFLA_IPTUN_6RD_RELAY_PREFIX] = { .type = NETLINK_TYPE_U32 },
197 [IFLA_IPTUN_6RD_PREFIXLEN] = { .type = NETLINK_TYPE_U16 },
198 [IFLA_IPTUN_6RD_RELAY_PREFIXLEN] = { .type = NETLINK_TYPE_U16 },
199 [IFLA_IPTUN_ENCAP_TYPE] = { .type = NETLINK_TYPE_U16},
200 [IFLA_IPTUN_ENCAP_FLAGS] = { .type = NETLINK_TYPE_U16},
201 [IFLA_IPTUN_ENCAP_SPORT] = { .type = NETLINK_TYPE_U16},
202 [IFLA_IPTUN_ENCAP_DPORT] = { .type = NETLINK_TYPE_U16},
205 static const NLType rtnl_link_info_data_ipgre_types[IFLA_GRE_MAX + 1] = {
206 [IFLA_GRE_LINK] = { .type = NETLINK_TYPE_U32 },
207 [IFLA_GRE_IFLAGS] = { .type = NETLINK_TYPE_U16 },
208 [IFLA_GRE_OFLAGS] = { .type = NETLINK_TYPE_U16 },
209 [IFLA_GRE_IKEY] = { .type = NETLINK_TYPE_U32 },
210 [IFLA_GRE_OKEY] = { .type = NETLINK_TYPE_U32 },
211 [IFLA_GRE_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
212 [IFLA_GRE_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
213 [IFLA_GRE_TTL] = { .type = NETLINK_TYPE_U8 },
214 [IFLA_GRE_TOS] = { .type = NETLINK_TYPE_U8 },
215 [IFLA_GRE_PMTUDISC] = { .type = NETLINK_TYPE_U8 },
216 [IFLA_GRE_FLOWINFO] = { .type = NETLINK_TYPE_U32 },
217 [IFLA_GRE_FLAGS] = { .type = NETLINK_TYPE_U32 },
218 [IFLA_GRE_ENCAP_TYPE] = { .type = NETLINK_TYPE_U16 },
219 [IFLA_GRE_ENCAP_FLAGS] = { .type = NETLINK_TYPE_U16 },
220 [IFLA_GRE_ENCAP_SPORT] = { .type = NETLINK_TYPE_U16 },
221 [IFLA_GRE_ENCAP_DPORT] = { .type = NETLINK_TYPE_U16 },
224 static const NLType rtnl_link_info_data_ipvti_types[IFLA_VTI_MAX + 1] = {
225 [IFLA_VTI_LINK] = { .type = NETLINK_TYPE_U32 },
226 [IFLA_VTI_IKEY] = { .type = NETLINK_TYPE_U32 },
227 [IFLA_VTI_OKEY] = { .type = NETLINK_TYPE_U32 },
228 [IFLA_VTI_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
229 [IFLA_VTI_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
232 static const NLType rtnl_link_info_data_ip6tnl_types[IFLA_IPTUN_MAX + 1] = {
233 [IFLA_IPTUN_LINK] = { .type = NETLINK_TYPE_U32 },
234 [IFLA_IPTUN_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
235 [IFLA_IPTUN_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
236 [IFLA_IPTUN_TTL] = { .type = NETLINK_TYPE_U8 },
237 [IFLA_IPTUN_FLAGS] = { .type = NETLINK_TYPE_U32 },
238 [IFLA_IPTUN_PROTO] = { .type = NETLINK_TYPE_U8 },
239 [IFLA_IPTUN_ENCAP_LIMIT] = { .type = NETLINK_TYPE_U8 },
240 [IFLA_IPTUN_FLOWINFO] = { .type = NETLINK_TYPE_U32},
243 /* these strings must match the .kind entries in the kernel */
244 static const char* const nl_union_link_info_data_table[_NL_UNION_LINK_INFO_DATA_MAX] = {
245 [NL_UNION_LINK_INFO_DATA_BOND] = "bond",
246 [NL_UNION_LINK_INFO_DATA_BRIDGE] = "bridge",
247 [NL_UNION_LINK_INFO_DATA_VLAN] = "vlan",
248 [NL_UNION_LINK_INFO_DATA_VETH] = "veth",
249 [NL_UNION_LINK_INFO_DATA_DUMMY] = "dummy",
250 [NL_UNION_LINK_INFO_DATA_MACVLAN] = "macvlan",
251 [NL_UNION_LINK_INFO_DATA_IPVLAN] = "ipvlan",
252 [NL_UNION_LINK_INFO_DATA_VXLAN] = "vxlan",
253 [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = "ipip",
254 [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = "gre",
255 [NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = "gretap",
256 [NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = "ip6gre",
257 [NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = "ip6gretap",
258 [NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = "sit",
259 [NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = "vti",
260 [NL_UNION_LINK_INFO_DATA_VTI6_TUNNEL] = "vti6",
261 [NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = "ip6tnl",
264 DEFINE_STRING_TABLE_LOOKUP(nl_union_link_info_data, NLUnionLinkInfoData);
266 static const NLTypeSystem rtnl_link_info_data_type_systems[_NL_UNION_LINK_INFO_DATA_MAX] = {
267 [NL_UNION_LINK_INFO_DATA_BOND] = { .count = ELEMENTSOF(rtnl_link_info_data_bond_types),
268 .types = rtnl_link_info_data_bond_types },
269 [NL_UNION_LINK_INFO_DATA_BRIDGE] = { .count = ELEMENTSOF(rtnl_link_info_data_bridge_types),
270 .types = rtnl_link_info_data_bridge_types },
271 [NL_UNION_LINK_INFO_DATA_VLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vlan_types),
272 .types = rtnl_link_info_data_vlan_types },
273 [NL_UNION_LINK_INFO_DATA_VETH] = { .count = ELEMENTSOF(rtnl_link_info_data_veth_types),
274 .types = rtnl_link_info_data_veth_types },
275 [NL_UNION_LINK_INFO_DATA_MACVLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_macvlan_types),
276 .types = rtnl_link_info_data_macvlan_types },
277 [NL_UNION_LINK_INFO_DATA_IPVLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvlan_types),
278 .types = rtnl_link_info_data_ipvlan_types },
279 [NL_UNION_LINK_INFO_DATA_VXLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vxlan_types),
280 .types = rtnl_link_info_data_vxlan_types },
281 [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_iptun_types),
282 .types = rtnl_link_info_data_iptun_types },
283 [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
284 .types = rtnl_link_info_data_ipgre_types },
285 [NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
286 .types = rtnl_link_info_data_ipgre_types },
287 [NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
288 .types = rtnl_link_info_data_ipgre_types },
289 [NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
290 .types = rtnl_link_info_data_ipgre_types },
291 [NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_iptun_types),
292 .types = rtnl_link_info_data_iptun_types },
293 [NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvti_types),
294 .types = rtnl_link_info_data_ipvti_types },
295 [NL_UNION_LINK_INFO_DATA_VTI6_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvti_types),
296 .types = rtnl_link_info_data_ipvti_types },
297 [NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ip6tnl_types),
298 .types = rtnl_link_info_data_ip6tnl_types },
302 static const NLTypeSystemUnion rtnl_link_info_data_type_system_union = {
303 .num = _NL_UNION_LINK_INFO_DATA_MAX,
304 .lookup = nl_union_link_info_data_from_string,
305 .type_systems = rtnl_link_info_data_type_systems,
306 .match_type = NL_MATCH_SIBLING,
307 .match = IFLA_INFO_KIND,
310 static const NLType rtnl_link_info_types[IFLA_INFO_MAX + 1] = {
311 [IFLA_INFO_KIND] = { .type = NETLINK_TYPE_STRING },
312 [IFLA_INFO_DATA] = { .type = NETLINK_TYPE_UNION, .type_system_union = &rtnl_link_info_data_type_system_union},
315 [IFLA_INFO_SLAVE_KIND] = { .type = NETLINK_TYPE_STRING },
316 [IFLA_INFO_SLAVE_DATA] = { .type = NETLINK_TYPE_NESTED },
320 static const NLTypeSystem rtnl_link_info_type_system = {
321 .count = ELEMENTSOF(rtnl_link_info_types),
322 .types = rtnl_link_info_types,
325 static const struct NLType rtnl_prot_info_bridge_port_types[IFLA_BRPORT_MAX + 1] = {
326 [IFLA_BRPORT_STATE] = { .type = NETLINK_TYPE_U8 },
327 [IFLA_BRPORT_COST] = { .type = NETLINK_TYPE_U32 },
328 [IFLA_BRPORT_PRIORITY] = { .type = NETLINK_TYPE_U16 },
329 [IFLA_BRPORT_MODE] = { .type = NETLINK_TYPE_U8 },
330 [IFLA_BRPORT_GUARD] = { .type = NETLINK_TYPE_U8 },
331 [IFLA_BRPORT_PROTECT] = { .type = NETLINK_TYPE_U8 },
332 [IFLA_BRPORT_LEARNING] = { .type = NETLINK_TYPE_U8 },
333 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NETLINK_TYPE_U8 },
336 static const NLTypeSystem rtnl_prot_info_type_systems[AF_MAX] = {
337 [AF_BRIDGE] = { .count = ELEMENTSOF(rtnl_prot_info_bridge_port_types),
338 .types = rtnl_prot_info_bridge_port_types },
341 static const NLTypeSystemUnion rtnl_prot_info_type_system_union = {
343 .type_systems = rtnl_prot_info_type_systems,
344 .match_type = NL_MATCH_PROTOCOL,
347 static const struct NLType rtnl_af_spec_inet6_types[IFLA_INET6_MAX + 1] = {
348 [IFLA_INET6_FLAGS] = { .type = NETLINK_TYPE_U32 },
353 IFLA_INET6_CACHEINFO,
354 IFLA_INET6_ICMP6STATS,
356 [IFLA_INET6_TOKEN] = { .type = NETLINK_TYPE_IN_ADDR },
357 [IFLA_INET6_ADDR_GEN_MODE] = { .type = NETLINK_TYPE_U8 },
360 static const NLTypeSystem rtnl_af_spec_inet6_type_system = {
361 .count = ELEMENTSOF(rtnl_af_spec_inet6_types),
362 .types = rtnl_af_spec_inet6_types,
365 static const NLType rtnl_af_spec_types[AF_MAX + 1] = {
366 [AF_INET6] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_af_spec_inet6_type_system },
369 static const NLTypeSystem rtnl_af_spec_type_system = {
370 .count = ELEMENTSOF(rtnl_af_spec_types),
371 .types = rtnl_af_spec_types,
374 static const NLType rtnl_link_types[IFLA_MAX + 1 ] = {
375 [IFLA_ADDRESS] = { .type = NETLINK_TYPE_ETHER_ADDR, },
376 [IFLA_BROADCAST] = { .type = NETLINK_TYPE_ETHER_ADDR, },
377 [IFLA_IFNAME] = { .type = NETLINK_TYPE_STRING, .size = IFNAMSIZ - 1, },
378 [IFLA_MTU] = { .type = NETLINK_TYPE_U32 },
379 [IFLA_LINK] = { .type = NETLINK_TYPE_U32 },
386 [IFLA_MASTER] = { .type = NETLINK_TYPE_U32 },
390 [IFLA_PROTINFO] = { .type = NETLINK_TYPE_UNION, .type_system_union = &rtnl_prot_info_type_system_union },
391 [IFLA_TXQLEN] = { .type = NETLINK_TYPE_U32 },
393 [IFLA_MAP] = { .len = sizeof(struct rtnl_link_ifmap) },
395 [IFLA_WEIGHT] = { .type = NETLINK_TYPE_U32 },
396 [IFLA_OPERSTATE] = { .type = NETLINK_TYPE_U8 },
397 [IFLA_LINKMODE] = { .type = NETLINK_TYPE_U8 },
398 [IFLA_LINKINFO] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_info_type_system },
399 [IFLA_NET_NS_PID] = { .type = NETLINK_TYPE_U32 },
400 [IFLA_IFALIAS] = { .type = NETLINK_TYPE_STRING, .size = IFALIASZ - 1 },
403 [IFLA_VFINFO_LIST] = {. type = NETLINK_TYPE_NESTED, },
405 [IFLA_VF_PORTS] = { .type = NETLINK_TYPE_NESTED },
406 [IFLA_PORT_SELF] = { .type = NETLINK_TYPE_NESTED },
408 [IFLA_AF_SPEC] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_af_spec_type_system },
414 [IFLA_GROUP] = { .type = NETLINK_TYPE_U32 },
415 [IFLA_NET_NS_FD] = { .type = NETLINK_TYPE_U32 },
416 [IFLA_EXT_MASK] = { .type = NETLINK_TYPE_U32 },
417 [IFLA_PROMISCUITY] = { .type = NETLINK_TYPE_U32 },
418 [IFLA_NUM_TX_QUEUES] = { .type = NETLINK_TYPE_U32 },
419 [IFLA_NUM_RX_QUEUES] = { .type = NETLINK_TYPE_U32 },
420 [IFLA_CARRIER] = { .type = NETLINK_TYPE_U8 },
422 [IFLA_PHYS_PORT_ID] = { .type = NETLINK_TYPE_BINARY, .len = MAX_PHYS_PORT_ID_LEN },
426 static const NLTypeSystem rtnl_link_type_system = {
427 .count = ELEMENTSOF(rtnl_link_types),
428 .types = rtnl_link_types,
431 /* IFA_FLAGS was defined in kernel 3.14, but we still support older
432 * kernels where IFA_MAX is lower. */
433 static const NLType rtnl_address_types[CONST_MAX(IFA_MAX, IFA_FLAGS) + 1] = {
434 [IFA_ADDRESS] = { .type = NETLINK_TYPE_IN_ADDR },
435 [IFA_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
436 [IFA_LABEL] = { .type = NETLINK_TYPE_STRING, .size = IFNAMSIZ - 1 },
437 [IFA_BROADCAST] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
438 [IFA_CACHEINFO] = { .type = NETLINK_TYPE_CACHE_INFO, .size = sizeof(struct ifa_cacheinfo) },
443 [IFA_FLAGS] = { .type = NETLINK_TYPE_U32 },
446 static const NLTypeSystem rtnl_address_type_system = {
447 .count = ELEMENTSOF(rtnl_address_types),
448 .types = rtnl_address_types,
451 static const NLType rtnl_route_types[RTA_MAX + 1] = {
452 [RTA_DST] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
453 [RTA_SRC] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
454 [RTA_IIF] = { .type = NETLINK_TYPE_U32 },
455 [RTA_OIF] = { .type = NETLINK_TYPE_U32 },
456 [RTA_GATEWAY] = { .type = NETLINK_TYPE_IN_ADDR },
457 [RTA_PRIORITY] = { .type = NETLINK_TYPE_U32 },
458 [RTA_PREFSRC] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
460 [RTA_METRICS] = { .type = NETLINK_TYPE_NESTED },
461 [RTA_MULTIPATH] = { .len = sizeof(struct rtnexthop) },
463 [RTA_FLOW] = { .type = NETLINK_TYPE_U32 }, /* 6? */
472 static const NLTypeSystem rtnl_route_type_system = {
473 .count = ELEMENTSOF(rtnl_route_types),
474 .types = rtnl_route_types,
477 static const NLType rtnl_neigh_types[NDA_MAX + 1] = {
478 [NDA_DST] = { .type = NETLINK_TYPE_IN_ADDR },
479 [NDA_LLADDR] = { .type = NETLINK_TYPE_ETHER_ADDR },
480 [NDA_CACHEINFO] = { .type = NETLINK_TYPE_CACHE_INFO, .size = sizeof(struct nda_cacheinfo) },
481 [NDA_PROBES] = { .type = NETLINK_TYPE_U32 },
482 [NDA_VLAN] = { .type = NETLINK_TYPE_U16 },
483 [NDA_PORT] = { .type = NETLINK_TYPE_U16 },
484 [NDA_VNI] = { .type = NETLINK_TYPE_U32 },
485 [NDA_IFINDEX] = { .type = NETLINK_TYPE_U32 },
488 static const NLTypeSystem rtnl_neigh_type_system = {
489 .count = ELEMENTSOF(rtnl_neigh_types),
490 .types = rtnl_neigh_types,
493 static const NLType rtnl_types[RTM_MAX + 1] = {
494 [NLMSG_DONE] = { .type = NETLINK_TYPE_NESTED, .type_system = &empty_type_system, .size = 0 },
495 [NLMSG_ERROR] = { .type = NETLINK_TYPE_NESTED, .type_system = &empty_type_system, .size = sizeof(struct nlmsgerr) },
496 [RTM_NEWLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
497 [RTM_DELLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
498 [RTM_GETLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
499 [RTM_SETLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
500 [RTM_NEWADDR] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
501 [RTM_DELADDR] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
502 [RTM_GETADDR] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
503 [RTM_NEWROUTE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
504 [RTM_DELROUTE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
505 [RTM_GETROUTE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
506 [RTM_NEWNEIGH] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
507 [RTM_DELNEIGH] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
508 [RTM_GETNEIGH] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
511 const NLTypeSystem type_system_root = {
512 .count = ELEMENTSOF(rtnl_types),
516 uint16_t type_get_type(const NLType *type) {
521 size_t type_get_size(const NLType *type) {
526 void type_get_type_system(const NLType *nl_type, const NLTypeSystem **ret) {
529 assert(nl_type->type == NETLINK_TYPE_NESTED);
530 assert(nl_type->type_system);
532 *ret = nl_type->type_system;
535 void type_get_type_system_union(const NLType *nl_type, const NLTypeSystemUnion **ret) {
538 assert(nl_type->type == NETLINK_TYPE_UNION);
539 assert(nl_type->type_system_union);
541 *ret = nl_type->type_system_union;
544 uint16_t type_system_get_count(const NLTypeSystem *type_system) {
546 return type_system->count;
549 int type_system_get_type(const NLTypeSystem *type_system, const NLType **ret, uint16_t type) {
550 const NLType *nl_type;
554 assert(type_system->types);
556 if (type >= type_system->count)
559 nl_type = &type_system->types[type];
561 if (nl_type->type == NETLINK_TYPE_UNSPEC)
569 int type_system_get_type_system(const NLTypeSystem *type_system, const NLTypeSystem **ret, uint16_t type) {
570 const NLType *nl_type;
575 r = type_system_get_type(type_system, &nl_type, type);
579 type_get_type_system(nl_type, ret);
583 int type_system_get_type_system_union(const NLTypeSystem *type_system, const NLTypeSystemUnion **ret, uint16_t type) {
584 const NLType *nl_type;
589 r = type_system_get_type(type_system, &nl_type, type);
593 type_get_type_system_union(nl_type, ret);
597 int type_system_union_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, const char *key) {
600 assert(type_system_union);
601 assert(type_system_union->match_type == NL_MATCH_SIBLING);
602 assert(type_system_union->lookup);
603 assert(type_system_union->type_systems);
607 type = type_system_union->lookup(key);
611 assert(type < type_system_union->num);
613 *ret = &type_system_union->type_systems[type];
618 int type_system_union_protocol_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, uint16_t protocol) {
619 const NLTypeSystem *type_system;
621 assert(type_system_union);
622 assert(type_system_union->type_systems);
623 assert(type_system_union->match_type == NL_MATCH_PROTOCOL);
626 if (protocol >= type_system_union->num)
629 type_system = &type_system_union->type_systems[protocol];
630 if (!type_system->types)