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 },
218 static const NLType rtnl_link_info_data_ipvti_types[IFLA_VTI_MAX + 1] = {
219 [IFLA_VTI_LINK] = { .type = NETLINK_TYPE_U32 },
220 [IFLA_VTI_IKEY] = { .type = NETLINK_TYPE_U32 },
221 [IFLA_VTI_OKEY] = { .type = NETLINK_TYPE_U32 },
222 [IFLA_VTI_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
223 [IFLA_VTI_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
226 static const NLType rtnl_link_info_data_ip6tnl_types[IFLA_IPTUN_MAX + 1] = {
227 [IFLA_IPTUN_LINK] = { .type = NETLINK_TYPE_U32 },
228 [IFLA_IPTUN_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
229 [IFLA_IPTUN_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
230 [IFLA_IPTUN_TTL] = { .type = NETLINK_TYPE_U8 },
231 [IFLA_IPTUN_FLAGS] = { .type = NETLINK_TYPE_U32 },
232 [IFLA_IPTUN_PROTO] = { .type = NETLINK_TYPE_U8 },
233 [IFLA_IPTUN_ENCAP_LIMIT] = { .type = NETLINK_TYPE_U8 },
234 [IFLA_IPTUN_FLOWINFO] = { .type = NETLINK_TYPE_U32},
237 /* these strings must match the .kind entries in the kernel */
238 static const char* const nl_union_link_info_data_table[_NL_UNION_LINK_INFO_DATA_MAX] = {
239 [NL_UNION_LINK_INFO_DATA_BOND] = "bond",
240 [NL_UNION_LINK_INFO_DATA_BRIDGE] = "bridge",
241 [NL_UNION_LINK_INFO_DATA_VLAN] = "vlan",
242 [NL_UNION_LINK_INFO_DATA_VETH] = "veth",
243 [NL_UNION_LINK_INFO_DATA_DUMMY] = "dummy",
244 [NL_UNION_LINK_INFO_DATA_MACVLAN] = "macvlan",
245 [NL_UNION_LINK_INFO_DATA_IPVLAN] = "ipvlan",
246 [NL_UNION_LINK_INFO_DATA_VXLAN] = "vxlan",
247 [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = "ipip",
248 [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = "gre",
249 [NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = "gretap",
250 [NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = "ip6gre",
251 [NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = "ip6gretap",
252 [NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = "sit",
253 [NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = "vti",
254 [NL_UNION_LINK_INFO_DATA_VTI6_TUNNEL] = "vti6",
255 [NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = "ip6tnl",
258 DEFINE_STRING_TABLE_LOOKUP(nl_union_link_info_data, NLUnionLinkInfoData);
260 static const NLTypeSystem rtnl_link_info_data_type_systems[_NL_UNION_LINK_INFO_DATA_MAX] = {
261 [NL_UNION_LINK_INFO_DATA_BOND] = { .count = ELEMENTSOF(rtnl_link_info_data_bond_types),
262 .types = rtnl_link_info_data_bond_types },
263 [NL_UNION_LINK_INFO_DATA_BRIDGE] = { .count = ELEMENTSOF(rtnl_link_info_data_bridge_types),
264 .types = rtnl_link_info_data_bridge_types },
265 [NL_UNION_LINK_INFO_DATA_VLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vlan_types),
266 .types = rtnl_link_info_data_vlan_types },
267 [NL_UNION_LINK_INFO_DATA_VETH] = { .count = ELEMENTSOF(rtnl_link_info_data_veth_types),
268 .types = rtnl_link_info_data_veth_types },
269 [NL_UNION_LINK_INFO_DATA_MACVLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_macvlan_types),
270 .types = rtnl_link_info_data_macvlan_types },
271 [NL_UNION_LINK_INFO_DATA_IPVLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvlan_types),
272 .types = rtnl_link_info_data_ipvlan_types },
273 [NL_UNION_LINK_INFO_DATA_VXLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vxlan_types),
274 .types = rtnl_link_info_data_vxlan_types },
275 [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_iptun_types),
276 .types = rtnl_link_info_data_iptun_types },
277 [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
278 .types = rtnl_link_info_data_ipgre_types },
279 [NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
280 .types = rtnl_link_info_data_ipgre_types },
281 [NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
282 .types = rtnl_link_info_data_ipgre_types },
283 [NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
284 .types = rtnl_link_info_data_ipgre_types },
285 [NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_iptun_types),
286 .types = rtnl_link_info_data_iptun_types },
287 [NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvti_types),
288 .types = rtnl_link_info_data_ipvti_types },
289 [NL_UNION_LINK_INFO_DATA_VTI6_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvti_types),
290 .types = rtnl_link_info_data_ipvti_types },
291 [NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ip6tnl_types),
292 .types = rtnl_link_info_data_ip6tnl_types },
296 static const NLTypeSystemUnion rtnl_link_info_data_type_system_union = {
297 .num = _NL_UNION_LINK_INFO_DATA_MAX,
298 .lookup = nl_union_link_info_data_from_string,
299 .type_systems = rtnl_link_info_data_type_systems,
300 .match_type = NL_MATCH_SIBLING,
301 .match = IFLA_INFO_KIND,
304 static const NLType rtnl_link_info_types[IFLA_INFO_MAX + 1] = {
305 [IFLA_INFO_KIND] = { .type = NETLINK_TYPE_STRING },
306 [IFLA_INFO_DATA] = { .type = NETLINK_TYPE_UNION, .type_system_union = &rtnl_link_info_data_type_system_union},
309 [IFLA_INFO_SLAVE_KIND] = { .type = NETLINK_TYPE_STRING },
310 [IFLA_INFO_SLAVE_DATA] = { .type = NETLINK_TYPE_NESTED },
314 static const NLTypeSystem rtnl_link_info_type_system = {
315 .count = ELEMENTSOF(rtnl_link_info_types),
316 .types = rtnl_link_info_types,
319 static const struct NLType rtnl_prot_info_bridge_port_types[IFLA_BRPORT_MAX + 1] = {
320 [IFLA_BRPORT_STATE] = { .type = NETLINK_TYPE_U8 },
321 [IFLA_BRPORT_COST] = { .type = NETLINK_TYPE_U32 },
322 [IFLA_BRPORT_PRIORITY] = { .type = NETLINK_TYPE_U16 },
323 [IFLA_BRPORT_MODE] = { .type = NETLINK_TYPE_U8 },
324 [IFLA_BRPORT_GUARD] = { .type = NETLINK_TYPE_U8 },
325 [IFLA_BRPORT_PROTECT] = { .type = NETLINK_TYPE_U8 },
326 [IFLA_BRPORT_LEARNING] = { .type = NETLINK_TYPE_U8 },
327 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NETLINK_TYPE_U8 },
330 static const NLTypeSystem rtnl_prot_info_type_systems[AF_MAX] = {
331 [AF_BRIDGE] = { .count = ELEMENTSOF(rtnl_prot_info_bridge_port_types),
332 .types = rtnl_prot_info_bridge_port_types },
335 static const NLTypeSystemUnion rtnl_prot_info_type_system_union = {
337 .type_systems = rtnl_prot_info_type_systems,
338 .match_type = NL_MATCH_PROTOCOL,
341 static const struct NLType rtnl_af_spec_inet6_types[IFLA_INET6_MAX + 1] = {
342 [IFLA_INET6_FLAGS] = { .type = NETLINK_TYPE_U32 },
347 IFLA_INET6_CACHEINFO,
348 IFLA_INET6_ICMP6STATS,
350 [IFLA_INET6_TOKEN] = { .type = NETLINK_TYPE_IN_ADDR },
351 [IFLA_INET6_ADDR_GEN_MODE] = { .type = NETLINK_TYPE_U8 },
354 static const NLTypeSystem rtnl_af_spec_inet6_type_system = {
355 .count = ELEMENTSOF(rtnl_af_spec_inet6_types),
356 .types = rtnl_af_spec_inet6_types,
359 static const NLType rtnl_af_spec_types[AF_MAX + 1] = {
360 [AF_INET6] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_af_spec_inet6_type_system },
363 static const NLTypeSystem rtnl_af_spec_type_system = {
364 .count = ELEMENTSOF(rtnl_af_spec_types),
365 .types = rtnl_af_spec_types,
368 static const NLType rtnl_link_types[IFLA_MAX + 1 ] = {
369 [IFLA_ADDRESS] = { .type = NETLINK_TYPE_ETHER_ADDR, },
370 [IFLA_BROADCAST] = { .type = NETLINK_TYPE_ETHER_ADDR, },
371 [IFLA_IFNAME] = { .type = NETLINK_TYPE_STRING, .size = IFNAMSIZ - 1, },
372 [IFLA_MTU] = { .type = NETLINK_TYPE_U32 },
373 [IFLA_LINK] = { .type = NETLINK_TYPE_U32 },
380 [IFLA_MASTER] = { .type = NETLINK_TYPE_U32 },
384 [IFLA_PROTINFO] = { .type = NETLINK_TYPE_UNION, .type_system_union = &rtnl_prot_info_type_system_union },
385 [IFLA_TXQLEN] = { .type = NETLINK_TYPE_U32 },
387 [IFLA_MAP] = { .len = sizeof(struct rtnl_link_ifmap) },
389 [IFLA_WEIGHT] = { .type = NETLINK_TYPE_U32 },
390 [IFLA_OPERSTATE] = { .type = NETLINK_TYPE_U8 },
391 [IFLA_LINKMODE] = { .type = NETLINK_TYPE_U8 },
392 [IFLA_LINKINFO] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_info_type_system },
393 [IFLA_NET_NS_PID] = { .type = NETLINK_TYPE_U32 },
394 [IFLA_IFALIAS] = { .type = NETLINK_TYPE_STRING, .size = IFALIASZ - 1 },
397 [IFLA_VFINFO_LIST] = {. type = NETLINK_TYPE_NESTED, },
399 [IFLA_VF_PORTS] = { .type = NETLINK_TYPE_NESTED },
400 [IFLA_PORT_SELF] = { .type = NETLINK_TYPE_NESTED },
402 [IFLA_AF_SPEC] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_af_spec_type_system },
408 [IFLA_GROUP] = { .type = NETLINK_TYPE_U32 },
409 [IFLA_NET_NS_FD] = { .type = NETLINK_TYPE_U32 },
410 [IFLA_EXT_MASK] = { .type = NETLINK_TYPE_U32 },
411 [IFLA_PROMISCUITY] = { .type = NETLINK_TYPE_U32 },
412 [IFLA_NUM_TX_QUEUES] = { .type = NETLINK_TYPE_U32 },
413 [IFLA_NUM_RX_QUEUES] = { .type = NETLINK_TYPE_U32 },
414 [IFLA_CARRIER] = { .type = NETLINK_TYPE_U8 },
416 [IFLA_PHYS_PORT_ID] = { .type = NETLINK_TYPE_BINARY, .len = MAX_PHYS_PORT_ID_LEN },
420 static const NLTypeSystem rtnl_link_type_system = {
421 .count = ELEMENTSOF(rtnl_link_types),
422 .types = rtnl_link_types,
425 /* IFA_FLAGS was defined in kernel 3.14, but we still support older
426 * kernels where IFA_MAX is lower. */
427 static const NLType rtnl_address_types[CONST_MAX(IFA_MAX, IFA_FLAGS) + 1] = {
428 [IFA_ADDRESS] = { .type = NETLINK_TYPE_IN_ADDR },
429 [IFA_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
430 [IFA_LABEL] = { .type = NETLINK_TYPE_STRING, .size = IFNAMSIZ - 1 },
431 [IFA_BROADCAST] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
432 [IFA_CACHEINFO] = { .type = NETLINK_TYPE_CACHE_INFO, .size = sizeof(struct ifa_cacheinfo) },
437 [IFA_FLAGS] = { .type = NETLINK_TYPE_U32 },
440 static const NLTypeSystem rtnl_address_type_system = {
441 .count = ELEMENTSOF(rtnl_address_types),
442 .types = rtnl_address_types,
445 static const NLType rtnl_route_types[RTA_MAX + 1] = {
446 [RTA_DST] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
447 [RTA_SRC] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
448 [RTA_IIF] = { .type = NETLINK_TYPE_U32 },
449 [RTA_OIF] = { .type = NETLINK_TYPE_U32 },
450 [RTA_GATEWAY] = { .type = NETLINK_TYPE_IN_ADDR },
451 [RTA_PRIORITY] = { .type = NETLINK_TYPE_U32 },
452 [RTA_PREFSRC] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
454 [RTA_METRICS] = { .type = NETLINK_TYPE_NESTED },
455 [RTA_MULTIPATH] = { .len = sizeof(struct rtnexthop) },
457 [RTA_FLOW] = { .type = NETLINK_TYPE_U32 }, /* 6? */
466 static const NLTypeSystem rtnl_route_type_system = {
467 .count = ELEMENTSOF(rtnl_route_types),
468 .types = rtnl_route_types,
471 static const NLType rtnl_neigh_types[NDA_MAX + 1] = {
472 [NDA_DST] = { .type = NETLINK_TYPE_IN_ADDR },
473 [NDA_LLADDR] = { .type = NETLINK_TYPE_ETHER_ADDR },
474 [NDA_CACHEINFO] = { .type = NETLINK_TYPE_CACHE_INFO, .size = sizeof(struct nda_cacheinfo) },
475 [NDA_PROBES] = { .type = NETLINK_TYPE_U32 },
476 [NDA_VLAN] = { .type = NETLINK_TYPE_U16 },
477 [NDA_PORT] = { .type = NETLINK_TYPE_U16 },
478 [NDA_VNI] = { .type = NETLINK_TYPE_U32 },
479 [NDA_IFINDEX] = { .type = NETLINK_TYPE_U32 },
482 static const NLTypeSystem rtnl_neigh_type_system = {
483 .count = ELEMENTSOF(rtnl_neigh_types),
484 .types = rtnl_neigh_types,
487 static const NLType rtnl_types[RTM_MAX + 1] = {
488 [NLMSG_DONE] = { .type = NETLINK_TYPE_NESTED, .type_system = &empty_type_system, .size = 0 },
489 [NLMSG_ERROR] = { .type = NETLINK_TYPE_NESTED, .type_system = &empty_type_system, .size = sizeof(struct nlmsgerr) },
490 [RTM_NEWLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
491 [RTM_DELLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
492 [RTM_GETLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
493 [RTM_SETLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
494 [RTM_NEWADDR] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
495 [RTM_DELADDR] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
496 [RTM_GETADDR] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
497 [RTM_NEWROUTE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
498 [RTM_DELROUTE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
499 [RTM_GETROUTE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
500 [RTM_NEWNEIGH] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
501 [RTM_DELNEIGH] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
502 [RTM_GETNEIGH] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
505 const NLTypeSystem type_system_root = {
506 .count = ELEMENTSOF(rtnl_types),
510 uint16_t type_get_type(const NLType *type) {
515 size_t type_get_size(const NLType *type) {
520 void type_get_type_system(const NLType *nl_type, const NLTypeSystem **ret) {
523 assert(nl_type->type == NETLINK_TYPE_NESTED);
524 assert(nl_type->type_system);
526 *ret = nl_type->type_system;
529 void type_get_type_system_union(const NLType *nl_type, const NLTypeSystemUnion **ret) {
532 assert(nl_type->type == NETLINK_TYPE_UNION);
533 assert(nl_type->type_system_union);
535 *ret = nl_type->type_system_union;
538 uint16_t type_system_get_count(const NLTypeSystem *type_system) {
540 return type_system->count;
543 int type_system_get_type(const NLTypeSystem *type_system, const NLType **ret, uint16_t type) {
544 const NLType *nl_type;
548 assert(type_system->types);
550 if (type >= type_system->count)
553 nl_type = &type_system->types[type];
555 if (nl_type->type == NETLINK_TYPE_UNSPEC)
563 int type_system_get_type_system(const NLTypeSystem *type_system, const NLTypeSystem **ret, uint16_t type) {
564 const NLType *nl_type;
569 r = type_system_get_type(type_system, &nl_type, type);
573 type_get_type_system(nl_type, ret);
577 int type_system_get_type_system_union(const NLTypeSystem *type_system, const NLTypeSystemUnion **ret, uint16_t type) {
578 const NLType *nl_type;
583 r = type_system_get_type(type_system, &nl_type, type);
587 type_get_type_system_union(nl_type, ret);
591 int type_system_union_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, const char *key) {
594 assert(type_system_union);
595 assert(type_system_union->match_type == NL_MATCH_SIBLING);
596 assert(type_system_union->lookup);
597 assert(type_system_union->type_systems);
601 type = type_system_union->lookup(key);
605 assert(type < type_system_union->num);
607 *ret = &type_system_union->type_systems[type];
612 int type_system_union_protocol_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, uint16_t protocol) {
613 const NLTypeSystem *type_system;
615 assert(type_system_union);
616 assert(type_system_union->type_systems);
617 assert(type_system_union->match_type == NL_MATCH_PROTOCOL);
620 if (protocol >= type_system_union->num)
623 type_system = &type_system_union->type_systems[protocol];
624 if (!type_system->types)