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[thirdparty/systemd.git] / src / libsystemd / sd-netlink / netlink-types.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
2 /***
3 Copyright 2014 Tom Gundersen <teg@jklm.no>
4 ***/
5
6 #include <netinet/in.h>
7 #include <stdint.h>
8 #include <sys/socket.h>
9 #include <linux/netlink.h>
10 #include <linux/rtnetlink.h>
11 #include <linux/genetlink.h>
12 #include <linux/ip.h>
13 #include <linux/if.h>
14 #include <linux/can/netlink.h>
15 #include <linux/fib_rules.h>
16 #include <linux/if_addr.h>
17 #include <linux/if_addrlabel.h>
18 #include <linux/if_bridge.h>
19 #include <linux/if_link.h>
20 #include <linux/if_tunnel.h>
21 #include <linux/veth.h>
22 #if HAVE_VXCAN_INFO_PEER
23 #include <linux/can/vxcan.h>
24 #endif
25
26 #include "macro.h"
27 #include "missing.h"
28 #include "netlink-types.h"
29 #include "sd-netlink.h"
30 #include "string-table.h"
31 #include "util.h"
32 #include "wireguard-netlink.h"
33
34 /* Maximum ARP IP target defined in kernel */
35 #define BOND_MAX_ARP_TARGETS 16
36
37 typedef enum {
38 BOND_ARP_TARGETS_0,
39 BOND_ARP_TARGETS_1,
40 BOND_ARP_TARGETS_2,
41 BOND_ARP_TARGETS_3,
42 BOND_ARP_TARGETS_4,
43 BOND_ARP_TARGETS_5,
44 BOND_ARP_TARGETS_6,
45 BOND_ARP_TARGETS_7,
46 BOND_ARP_TARGETS_8,
47 BOND_ARP_TARGETS_9,
48 BOND_ARP_TARGETS_10,
49 BOND_ARP_TARGETS_11,
50 BOND_ARP_TARGETS_12,
51 BOND_ARP_TARGETS_13,
52 BOND_ARP_TARGETS_14,
53 BOND_ARP_TARGETS_MAX = BOND_MAX_ARP_TARGETS,
54 } BondArpTargets;
55
56 struct NLType {
57 uint16_t type;
58 size_t size;
59 const NLTypeSystem *type_system;
60 const NLTypeSystemUnion *type_system_union;
61 };
62
63 struct NLTypeSystem {
64 uint16_t count;
65 const NLType *types;
66 };
67
68 static const NLTypeSystem rtnl_link_type_system;
69
70 static const NLType empty_types[1] = {
71 /* fake array to avoid .types==NULL, which denotes invalid type-systems */
72 };
73
74 static const NLTypeSystem empty_type_system = {
75 .count = 0,
76 .types = empty_types,
77 };
78
79 static const NLType rtnl_link_info_data_veth_types[] = {
80 [VETH_INFO_PEER] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
81 };
82
83 static const NLType rtnl_link_info_data_vxcan_types[] = {
84 [VXCAN_INFO_PEER] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
85 };
86
87 static const NLType rtnl_link_info_data_ipvlan_types[] = {
88 [IFLA_IPVLAN_MODE] = { .type = NETLINK_TYPE_U16 },
89 [IFLA_IPVLAN_FLAGS] = { .type = NETLINK_TYPE_U16 },
90 };
91
92 static const NLType rtnl_link_info_data_macvlan_types[] = {
93 [IFLA_MACVLAN_MODE] = { .type = NETLINK_TYPE_U32 },
94 [IFLA_MACVLAN_FLAGS] = { .type = NETLINK_TYPE_U16 },
95 };
96
97 static const NLType rtnl_link_info_data_bridge_types[] = {
98 [IFLA_BR_FORWARD_DELAY] = { .type = NETLINK_TYPE_U32 },
99 [IFLA_BR_HELLO_TIME] = { .type = NETLINK_TYPE_U32 },
100 [IFLA_BR_MAX_AGE] = { .type = NETLINK_TYPE_U32 },
101 [IFLA_BR_AGEING_TIME] = { .type = NETLINK_TYPE_U32 },
102 [IFLA_BR_STP_STATE] = { .type = NETLINK_TYPE_U32 },
103 [IFLA_BR_PRIORITY] = { .type = NETLINK_TYPE_U16 },
104 [IFLA_BR_VLAN_FILTERING] = { .type = NETLINK_TYPE_U8 },
105 [IFLA_BR_VLAN_PROTOCOL] = { .type = NETLINK_TYPE_U16 },
106 [IFLA_BR_GROUP_FWD_MASK] = { .type = NETLINK_TYPE_U16 },
107 [IFLA_BR_ROOT_PORT] = { .type = NETLINK_TYPE_U16 },
108 [IFLA_BR_ROOT_PATH_COST] = { .type = NETLINK_TYPE_U32 },
109 [IFLA_BR_TOPOLOGY_CHANGE] = { .type = NETLINK_TYPE_U8 },
110 [IFLA_BR_TOPOLOGY_CHANGE_DETECTED] = { .type = NETLINK_TYPE_U8 },
111 [IFLA_BR_HELLO_TIMER] = { .type = NETLINK_TYPE_U16 },
112 [IFLA_BR_TCN_TIMER] = { .type = NETLINK_TYPE_U16 },
113 [IFLA_BR_TOPOLOGY_CHANGE_TIMER] = { .type = NETLINK_TYPE_U16 },
114 [IFLA_BR_GC_TIMER] = { .type = NETLINK_TYPE_U64 },
115 [IFLA_BR_GROUP_ADDR] = { .type = NETLINK_TYPE_U16 },
116 [IFLA_BR_FDB_FLUSH] = { .type = NETLINK_TYPE_U16 },
117 [IFLA_BR_MCAST_ROUTER] = { .type = NETLINK_TYPE_U8 },
118 [IFLA_BR_MCAST_SNOOPING] = { .type = NETLINK_TYPE_U8 },
119 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NETLINK_TYPE_U8 },
120 [IFLA_BR_MCAST_QUERIER] = { .type = NETLINK_TYPE_U8 },
121 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NETLINK_TYPE_U32 },
122 [IFLA_BR_MCAST_HASH_MAX] = { .type = NETLINK_TYPE_U16 },
123 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NETLINK_TYPE_U32 },
124 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NETLINK_TYPE_U16 },
125 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NETLINK_TYPE_U64 },
126 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NETLINK_TYPE_U64 },
127 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NETLINK_TYPE_U64 },
128 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NETLINK_TYPE_U64 },
129 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NETLINK_TYPE_U64 },
130 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NETLINK_TYPE_U64 },
131 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NETLINK_TYPE_U8 },
132 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NETLINK_TYPE_U8 },
133 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NETLINK_TYPE_U8 },
134 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NETLINK_TYPE_U16 },
135 };
136
137 static const NLType rtnl_link_info_data_vlan_types[] = {
138 [IFLA_VLAN_ID] = { .type = NETLINK_TYPE_U16 },
139 /*
140 [IFLA_VLAN_FLAGS] = { .len = sizeof(struct ifla_vlan_flags) },
141 [IFLA_VLAN_EGRESS_QOS] = { .type = NETLINK_TYPE_NESTED },
142 [IFLA_VLAN_INGRESS_QOS] = { .type = NETLINK_TYPE_NESTED },
143 */
144 [IFLA_VLAN_PROTOCOL] = { .type = NETLINK_TYPE_U16 },
145 };
146
147 static const NLType rtnl_link_info_data_vxlan_types[] = {
148 [IFLA_VXLAN_ID] = { .type = NETLINK_TYPE_U32 },
149 [IFLA_VXLAN_GROUP] = { .type = NETLINK_TYPE_IN_ADDR },
150 [IFLA_VXLAN_LINK] = { .type = NETLINK_TYPE_U32 },
151 [IFLA_VXLAN_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
152 [IFLA_VXLAN_TTL] = { .type = NETLINK_TYPE_U8 },
153 [IFLA_VXLAN_TOS] = { .type = NETLINK_TYPE_U8 },
154 [IFLA_VXLAN_LEARNING] = { .type = NETLINK_TYPE_U8 },
155 [IFLA_VXLAN_AGEING] = { .type = NETLINK_TYPE_U32 },
156 [IFLA_VXLAN_LIMIT] = { .type = NETLINK_TYPE_U32 },
157 [IFLA_VXLAN_PORT_RANGE] = { .type = NETLINK_TYPE_U32},
158 [IFLA_VXLAN_PROXY] = { .type = NETLINK_TYPE_U8 },
159 [IFLA_VXLAN_RSC] = { .type = NETLINK_TYPE_U8 },
160 [IFLA_VXLAN_L2MISS] = { .type = NETLINK_TYPE_U8 },
161 [IFLA_VXLAN_L3MISS] = { .type = NETLINK_TYPE_U8 },
162 [IFLA_VXLAN_PORT] = { .type = NETLINK_TYPE_U16 },
163 [IFLA_VXLAN_GROUP6] = { .type = NETLINK_TYPE_IN_ADDR },
164 [IFLA_VXLAN_LOCAL6] = { .type = NETLINK_TYPE_IN_ADDR },
165 [IFLA_VXLAN_UDP_CSUM] = { .type = NETLINK_TYPE_U8 },
166 [IFLA_VXLAN_UDP_ZERO_CSUM6_TX] = { .type = NETLINK_TYPE_U8 },
167 [IFLA_VXLAN_UDP_ZERO_CSUM6_RX] = { .type = NETLINK_TYPE_U8 },
168 [IFLA_VXLAN_REMCSUM_TX] = { .type = NETLINK_TYPE_U8 },
169 [IFLA_VXLAN_REMCSUM_RX] = { .type = NETLINK_TYPE_U8 },
170 [IFLA_VXLAN_GBP] = { .type = NETLINK_TYPE_FLAG },
171 [IFLA_VXLAN_REMCSUM_NOPARTIAL] = { .type = NETLINK_TYPE_FLAG },
172 [IFLA_VXLAN_COLLECT_METADATA] = { .type = NETLINK_TYPE_U8 },
173 [IFLA_VXLAN_LABEL] = { .type = NETLINK_TYPE_U32 },
174 [IFLA_VXLAN_GPE] = { .type = NETLINK_TYPE_FLAG },
175 };
176
177 static const NLType rtnl_bond_arp_target_types[] = {
178 [BOND_ARP_TARGETS_0] = { .type = NETLINK_TYPE_U32 },
179 [BOND_ARP_TARGETS_1] = { .type = NETLINK_TYPE_U32 },
180 [BOND_ARP_TARGETS_2] = { .type = NETLINK_TYPE_U32 },
181 [BOND_ARP_TARGETS_3] = { .type = NETLINK_TYPE_U32 },
182 [BOND_ARP_TARGETS_4] = { .type = NETLINK_TYPE_U32 },
183 [BOND_ARP_TARGETS_5] = { .type = NETLINK_TYPE_U32 },
184 [BOND_ARP_TARGETS_6] = { .type = NETLINK_TYPE_U32 },
185 [BOND_ARP_TARGETS_7] = { .type = NETLINK_TYPE_U32 },
186 [BOND_ARP_TARGETS_8] = { .type = NETLINK_TYPE_U32 },
187 [BOND_ARP_TARGETS_9] = { .type = NETLINK_TYPE_U32 },
188 [BOND_ARP_TARGETS_10] = { .type = NETLINK_TYPE_U32 },
189 [BOND_ARP_TARGETS_11] = { .type = NETLINK_TYPE_U32 },
190 [BOND_ARP_TARGETS_12] = { .type = NETLINK_TYPE_U32 },
191 [BOND_ARP_TARGETS_13] = { .type = NETLINK_TYPE_U32 },
192 [BOND_ARP_TARGETS_14] = { .type = NETLINK_TYPE_U32 },
193 [BOND_ARP_TARGETS_MAX] = { .type = NETLINK_TYPE_U32 },
194 };
195
196 static const NLTypeSystem rtnl_bond_arp_type_system = {
197 .count = ELEMENTSOF(rtnl_bond_arp_target_types),
198 .types = rtnl_bond_arp_target_types,
199 };
200
201 static const NLType rtnl_link_info_data_bond_types[] = {
202 [IFLA_BOND_MODE] = { .type = NETLINK_TYPE_U8 },
203 [IFLA_BOND_ACTIVE_SLAVE] = { .type = NETLINK_TYPE_U32 },
204 [IFLA_BOND_MIIMON] = { .type = NETLINK_TYPE_U32 },
205 [IFLA_BOND_UPDELAY] = { .type = NETLINK_TYPE_U32 },
206 [IFLA_BOND_DOWNDELAY] = { .type = NETLINK_TYPE_U32 },
207 [IFLA_BOND_USE_CARRIER] = { .type = NETLINK_TYPE_U8 },
208 [IFLA_BOND_ARP_INTERVAL] = { .type = NETLINK_TYPE_U32 },
209 [IFLA_BOND_ARP_IP_TARGET] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_bond_arp_type_system },
210 [IFLA_BOND_ARP_VALIDATE] = { .type = NETLINK_TYPE_U32 },
211 [IFLA_BOND_ARP_ALL_TARGETS] = { .type = NETLINK_TYPE_U32 },
212 [IFLA_BOND_PRIMARY] = { .type = NETLINK_TYPE_U32 },
213 [IFLA_BOND_PRIMARY_RESELECT] = { .type = NETLINK_TYPE_U8 },
214 [IFLA_BOND_FAIL_OVER_MAC] = { .type = NETLINK_TYPE_U8 },
215 [IFLA_BOND_XMIT_HASH_POLICY] = { .type = NETLINK_TYPE_U8 },
216 [IFLA_BOND_RESEND_IGMP] = { .type = NETLINK_TYPE_U32 },
217 [IFLA_BOND_NUM_PEER_NOTIF] = { .type = NETLINK_TYPE_U8 },
218 [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NETLINK_TYPE_U8 },
219 [IFLA_BOND_MIN_LINKS] = { .type = NETLINK_TYPE_U32 },
220 [IFLA_BOND_LP_INTERVAL] = { .type = NETLINK_TYPE_U32 },
221 [IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NETLINK_TYPE_U32 },
222 [IFLA_BOND_AD_LACP_RATE] = { .type = NETLINK_TYPE_U8 },
223 [IFLA_BOND_AD_SELECT] = { .type = NETLINK_TYPE_U8 },
224 [IFLA_BOND_AD_INFO] = { .type = NETLINK_TYPE_NESTED },
225 };
226
227 static const NLType rtnl_link_info_data_iptun_types[] = {
228 [IFLA_IPTUN_LINK] = { .type = NETLINK_TYPE_U32 },
229 [IFLA_IPTUN_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
230 [IFLA_IPTUN_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
231 [IFLA_IPTUN_TTL] = { .type = NETLINK_TYPE_U8 },
232 [IFLA_IPTUN_TOS] = { .type = NETLINK_TYPE_U8 },
233 [IFLA_IPTUN_PMTUDISC] = { .type = NETLINK_TYPE_U8 },
234 [IFLA_IPTUN_FLAGS] = { .type = NETLINK_TYPE_U16 },
235 [IFLA_IPTUN_PROTO] = { .type = NETLINK_TYPE_U8 },
236 [IFLA_IPTUN_6RD_PREFIX] = { .type = NETLINK_TYPE_IN_ADDR },
237 [IFLA_IPTUN_6RD_RELAY_PREFIX] = { .type = NETLINK_TYPE_U32 },
238 [IFLA_IPTUN_6RD_PREFIXLEN] = { .type = NETLINK_TYPE_U16 },
239 [IFLA_IPTUN_6RD_RELAY_PREFIXLEN] = { .type = NETLINK_TYPE_U16 },
240 [IFLA_IPTUN_ENCAP_TYPE] = { .type = NETLINK_TYPE_U16 },
241 [IFLA_IPTUN_ENCAP_FLAGS] = { .type = NETLINK_TYPE_U16 },
242 [IFLA_IPTUN_ENCAP_SPORT] = { .type = NETLINK_TYPE_U16 },
243 [IFLA_IPTUN_ENCAP_DPORT] = { .type = NETLINK_TYPE_U16 },
244 };
245
246 static const NLType rtnl_link_info_data_ipgre_types[] = {
247 [IFLA_GRE_LINK] = { .type = NETLINK_TYPE_U32 },
248 [IFLA_GRE_IFLAGS] = { .type = NETLINK_TYPE_U16 },
249 [IFLA_GRE_OFLAGS] = { .type = NETLINK_TYPE_U16 },
250 [IFLA_GRE_IKEY] = { .type = NETLINK_TYPE_U32 },
251 [IFLA_GRE_OKEY] = { .type = NETLINK_TYPE_U32 },
252 [IFLA_GRE_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
253 [IFLA_GRE_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
254 [IFLA_GRE_TTL] = { .type = NETLINK_TYPE_U8 },
255 [IFLA_GRE_TOS] = { .type = NETLINK_TYPE_U8 },
256 [IFLA_GRE_PMTUDISC] = { .type = NETLINK_TYPE_U8 },
257 [IFLA_GRE_FLOWINFO] = { .type = NETLINK_TYPE_U32 },
258 [IFLA_GRE_FLAGS] = { .type = NETLINK_TYPE_U32 },
259 [IFLA_GRE_ENCAP_TYPE] = { .type = NETLINK_TYPE_U16 },
260 [IFLA_GRE_ENCAP_FLAGS] = { .type = NETLINK_TYPE_U16 },
261 [IFLA_GRE_ENCAP_SPORT] = { .type = NETLINK_TYPE_U16 },
262 [IFLA_GRE_ENCAP_DPORT] = { .type = NETLINK_TYPE_U16 },
263 };
264
265 static const NLType rtnl_link_info_data_ipvti_types[] = {
266 [IFLA_VTI_LINK] = { .type = NETLINK_TYPE_U32 },
267 [IFLA_VTI_IKEY] = { .type = NETLINK_TYPE_U32 },
268 [IFLA_VTI_OKEY] = { .type = NETLINK_TYPE_U32 },
269 [IFLA_VTI_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
270 [IFLA_VTI_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
271 };
272
273 static const NLType rtnl_link_info_data_ip6tnl_types[] = {
274 [IFLA_IPTUN_LINK] = { .type = NETLINK_TYPE_U32 },
275 [IFLA_IPTUN_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
276 [IFLA_IPTUN_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
277 [IFLA_IPTUN_TTL] = { .type = NETLINK_TYPE_U8 },
278 [IFLA_IPTUN_FLAGS] = { .type = NETLINK_TYPE_U32 },
279 [IFLA_IPTUN_PROTO] = { .type = NETLINK_TYPE_U8 },
280 [IFLA_IPTUN_ENCAP_LIMIT] = { .type = NETLINK_TYPE_U8 },
281 [IFLA_IPTUN_FLOWINFO] = { .type = NETLINK_TYPE_U32 },
282 };
283
284 static const NLType rtnl_link_info_data_vrf_types[] = {
285 [IFLA_VRF_TABLE] = { .type = NETLINK_TYPE_U32 },
286 };
287
288 static const NLType rtnl_link_info_data_geneve_types[] = {
289 [IFLA_GENEVE_ID] = { .type = NETLINK_TYPE_U32 },
290 [IFLA_GENEVE_TTL] = { .type = NETLINK_TYPE_U8 },
291 [IFLA_GENEVE_TOS] = { .type = NETLINK_TYPE_U8 },
292 [IFLA_GENEVE_PORT] = { .type = NETLINK_TYPE_U16 },
293 [IFLA_GENEVE_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
294 [IFLA_GENEVE_REMOTE6] = { .type = NETLINK_TYPE_IN_ADDR },
295 [IFLA_GENEVE_UDP_CSUM] = { .type = NETLINK_TYPE_U8 },
296 [IFLA_GENEVE_UDP_ZERO_CSUM6_TX] = { .type = NETLINK_TYPE_U8 },
297 [IFLA_GENEVE_UDP_ZERO_CSUM6_RX] = { .type = NETLINK_TYPE_U8 },
298 [IFLA_GENEVE_LABEL] = { .type = NETLINK_TYPE_U32 },
299 };
300
301 static const NLType rtnl_link_info_data_can_types[] = {
302 [IFLA_CAN_BITTIMING] = { .size = sizeof(struct can_bittiming) },
303 [IFLA_CAN_RESTART_MS] = { .type = NETLINK_TYPE_U32 },
304 };
305
306 /* these strings must match the .kind entries in the kernel */
307 static const char* const nl_union_link_info_data_table[] = {
308 [NL_UNION_LINK_INFO_DATA_BOND] = "bond",
309 [NL_UNION_LINK_INFO_DATA_BRIDGE] = "bridge",
310 [NL_UNION_LINK_INFO_DATA_VLAN] = "vlan",
311 [NL_UNION_LINK_INFO_DATA_VETH] = "veth",
312 [NL_UNION_LINK_INFO_DATA_DUMMY] = "dummy",
313 [NL_UNION_LINK_INFO_DATA_MACVLAN] = "macvlan",
314 [NL_UNION_LINK_INFO_DATA_MACVTAP] = "macvtap",
315 [NL_UNION_LINK_INFO_DATA_IPVLAN] = "ipvlan",
316 [NL_UNION_LINK_INFO_DATA_VXLAN] = "vxlan",
317 [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = "ipip",
318 [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = "gre",
319 [NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = "gretap",
320 [NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = "ip6gre",
321 [NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = "ip6gretap",
322 [NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = "sit",
323 [NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = "vti",
324 [NL_UNION_LINK_INFO_DATA_VTI6_TUNNEL] = "vti6",
325 [NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = "ip6tnl",
326 [NL_UNION_LINK_INFO_DATA_VRF] = "vrf",
327 [NL_UNION_LINK_INFO_DATA_VCAN] = "vcan",
328 [NL_UNION_LINK_INFO_DATA_GENEVE] = "geneve",
329 [NL_UNION_LINK_INFO_DATA_VXCAN] = "vxcan",
330 [NL_UNION_LINK_INFO_DATA_WIREGUARD] = "wireguard",
331 [NL_UNION_LINK_INFO_DATA_NETDEVSIM] = "netdevsim",
332 [NL_UNION_LINK_INFO_DATA_CAN] = "can",
333 };
334
335 DEFINE_STRING_TABLE_LOOKUP(nl_union_link_info_data, NLUnionLinkInfoData);
336
337 static const NLTypeSystem rtnl_link_info_data_type_systems[] = {
338 [NL_UNION_LINK_INFO_DATA_BOND] = { .count = ELEMENTSOF(rtnl_link_info_data_bond_types),
339 .types = rtnl_link_info_data_bond_types },
340 [NL_UNION_LINK_INFO_DATA_BRIDGE] = { .count = ELEMENTSOF(rtnl_link_info_data_bridge_types),
341 .types = rtnl_link_info_data_bridge_types },
342 [NL_UNION_LINK_INFO_DATA_VLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vlan_types),
343 .types = rtnl_link_info_data_vlan_types },
344 [NL_UNION_LINK_INFO_DATA_VETH] = { .count = ELEMENTSOF(rtnl_link_info_data_veth_types),
345 .types = rtnl_link_info_data_veth_types },
346 [NL_UNION_LINK_INFO_DATA_MACVLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_macvlan_types),
347 .types = rtnl_link_info_data_macvlan_types },
348 [NL_UNION_LINK_INFO_DATA_MACVTAP] = { .count = ELEMENTSOF(rtnl_link_info_data_macvlan_types),
349 .types = rtnl_link_info_data_macvlan_types },
350 [NL_UNION_LINK_INFO_DATA_IPVLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvlan_types),
351 .types = rtnl_link_info_data_ipvlan_types },
352 [NL_UNION_LINK_INFO_DATA_VXLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vxlan_types),
353 .types = rtnl_link_info_data_vxlan_types },
354 [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_iptun_types),
355 .types = rtnl_link_info_data_iptun_types },
356 [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
357 .types = rtnl_link_info_data_ipgre_types },
358 [NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
359 .types = rtnl_link_info_data_ipgre_types },
360 [NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
361 .types = rtnl_link_info_data_ipgre_types },
362 [NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
363 .types = rtnl_link_info_data_ipgre_types },
364 [NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_iptun_types),
365 .types = rtnl_link_info_data_iptun_types },
366 [NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvti_types),
367 .types = rtnl_link_info_data_ipvti_types },
368 [NL_UNION_LINK_INFO_DATA_VTI6_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvti_types),
369 .types = rtnl_link_info_data_ipvti_types },
370 [NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ip6tnl_types),
371 .types = rtnl_link_info_data_ip6tnl_types },
372 [NL_UNION_LINK_INFO_DATA_VRF] = { .count = ELEMENTSOF(rtnl_link_info_data_vrf_types),
373 .types = rtnl_link_info_data_vrf_types },
374 [NL_UNION_LINK_INFO_DATA_GENEVE] = { .count = ELEMENTSOF(rtnl_link_info_data_geneve_types),
375 .types = rtnl_link_info_data_geneve_types },
376 [NL_UNION_LINK_INFO_DATA_VXCAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vxcan_types),
377 .types = rtnl_link_info_data_vxcan_types },
378 [NL_UNION_LINK_INFO_DATA_CAN] = { .count = ELEMENTSOF(rtnl_link_info_data_can_types),
379 .types = rtnl_link_info_data_can_types },
380 };
381
382 static const NLTypeSystemUnion rtnl_link_info_data_type_system_union = {
383 .num = _NL_UNION_LINK_INFO_DATA_MAX,
384 .lookup = nl_union_link_info_data_from_string,
385 .type_systems = rtnl_link_info_data_type_systems,
386 .match_type = NL_MATCH_SIBLING,
387 .match = IFLA_INFO_KIND,
388 };
389
390 static const NLType rtnl_link_info_types[] = {
391 [IFLA_INFO_KIND] = { .type = NETLINK_TYPE_STRING },
392 [IFLA_INFO_DATA] = { .type = NETLINK_TYPE_UNION, .type_system_union = &rtnl_link_info_data_type_system_union},
393 /*
394 [IFLA_INFO_XSTATS],
395 [IFLA_INFO_SLAVE_KIND] = { .type = NETLINK_TYPE_STRING },
396 [IFLA_INFO_SLAVE_DATA] = { .type = NETLINK_TYPE_NESTED },
397 */
398 };
399
400 static const NLTypeSystem rtnl_link_info_type_system = {
401 .count = ELEMENTSOF(rtnl_link_info_types),
402 .types = rtnl_link_info_types,
403 };
404
405 static const struct NLType rtnl_prot_info_bridge_port_types[] = {
406 [IFLA_BRPORT_STATE] = { .type = NETLINK_TYPE_U8 },
407 [IFLA_BRPORT_COST] = { .type = NETLINK_TYPE_U32 },
408 [IFLA_BRPORT_PRIORITY] = { .type = NETLINK_TYPE_U16 },
409 [IFLA_BRPORT_MODE] = { .type = NETLINK_TYPE_U8 },
410 [IFLA_BRPORT_GUARD] = { .type = NETLINK_TYPE_U8 },
411 [IFLA_BRPORT_PROTECT] = { .type = NETLINK_TYPE_U8 },
412 [IFLA_BRPORT_FAST_LEAVE] = { .type = NETLINK_TYPE_U8 },
413 [IFLA_BRPORT_LEARNING] = { .type = NETLINK_TYPE_U8 },
414 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NETLINK_TYPE_U8 },
415 [IFLA_BRPORT_PROXYARP] = { .type = NETLINK_TYPE_U8 },
416 [IFLA_BRPORT_LEARNING_SYNC] = { .type = NETLINK_TYPE_U8 },
417 };
418
419 static const NLTypeSystem rtnl_prot_info_type_systems[] = {
420 [AF_BRIDGE] = { .count = ELEMENTSOF(rtnl_prot_info_bridge_port_types),
421 .types = rtnl_prot_info_bridge_port_types },
422 };
423
424 static const NLTypeSystemUnion rtnl_prot_info_type_system_union = {
425 .num = AF_MAX,
426 .type_systems = rtnl_prot_info_type_systems,
427 .match_type = NL_MATCH_PROTOCOL,
428 };
429
430 static const struct NLType rtnl_af_spec_inet6_types[] = {
431 [IFLA_INET6_FLAGS] = { .type = NETLINK_TYPE_U32 },
432 /*
433 IFLA_INET6_CONF,
434 IFLA_INET6_STATS,
435 IFLA_INET6_MCAST,
436 IFLA_INET6_CACHEINFO,
437 IFLA_INET6_ICMP6STATS,
438 */
439 [IFLA_INET6_TOKEN] = { .type = NETLINK_TYPE_IN_ADDR },
440 [IFLA_INET6_ADDR_GEN_MODE] = { .type = NETLINK_TYPE_U8 },
441 };
442
443 static const NLTypeSystem rtnl_af_spec_inet6_type_system = {
444 .count = ELEMENTSOF(rtnl_af_spec_inet6_types),
445 .types = rtnl_af_spec_inet6_types,
446 };
447
448 static const NLType rtnl_af_spec_types[] = {
449 [AF_INET6] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_af_spec_inet6_type_system },
450 };
451
452 static const NLTypeSystem rtnl_af_spec_type_system = {
453 .count = ELEMENTSOF(rtnl_af_spec_types),
454 .types = rtnl_af_spec_types,
455 };
456
457 static const NLType rtnl_link_types[] = {
458 [IFLA_ADDRESS] = { .type = NETLINK_TYPE_ETHER_ADDR },
459 [IFLA_BROADCAST] = { .type = NETLINK_TYPE_ETHER_ADDR },
460 [IFLA_IFNAME] = { .type = NETLINK_TYPE_STRING, .size = IFNAMSIZ - 1 },
461 [IFLA_MTU] = { .type = NETLINK_TYPE_U32 },
462 [IFLA_LINK] = { .type = NETLINK_TYPE_U32 },
463 /*
464 [IFLA_QDISC],
465 [IFLA_STATS],
466 [IFLA_COST],
467 [IFLA_PRIORITY],
468 */
469 [IFLA_MASTER] = { .type = NETLINK_TYPE_U32 },
470 /*
471 [IFLA_WIRELESS],
472 */
473 [IFLA_PROTINFO] = { .type = NETLINK_TYPE_UNION, .type_system_union = &rtnl_prot_info_type_system_union },
474 [IFLA_TXQLEN] = { .type = NETLINK_TYPE_U32 },
475 /*
476 [IFLA_MAP] = { .len = sizeof(struct rtnl_link_ifmap) },
477 */
478 [IFLA_WEIGHT] = { .type = NETLINK_TYPE_U32 },
479 [IFLA_OPERSTATE] = { .type = NETLINK_TYPE_U8 },
480 [IFLA_LINKMODE] = { .type = NETLINK_TYPE_U8 },
481 [IFLA_LINKINFO] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_info_type_system },
482 [IFLA_NET_NS_PID] = { .type = NETLINK_TYPE_U32 },
483 [IFLA_IFALIAS] = { .type = NETLINK_TYPE_STRING, .size = IFALIASZ - 1 },
484 /*
485 [IFLA_NUM_VF],
486 [IFLA_VFINFO_LIST] = {. type = NETLINK_TYPE_NESTED, },
487 [IFLA_STATS64],
488 [IFLA_VF_PORTS] = { .type = NETLINK_TYPE_NESTED },
489 [IFLA_PORT_SELF] = { .type = NETLINK_TYPE_NESTED },
490 */
491 [IFLA_AF_SPEC] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_af_spec_type_system },
492 /*
493 [IFLA_VF_PORTS],
494 [IFLA_PORT_SELF],
495 [IFLA_AF_SPEC],
496 */
497 [IFLA_GROUP] = { .type = NETLINK_TYPE_U32 },
498 [IFLA_NET_NS_FD] = { .type = NETLINK_TYPE_U32 },
499 [IFLA_EXT_MASK] = { .type = NETLINK_TYPE_U32 },
500 [IFLA_PROMISCUITY] = { .type = NETLINK_TYPE_U32 },
501 [IFLA_NUM_TX_QUEUES] = { .type = NETLINK_TYPE_U32 },
502 [IFLA_NUM_RX_QUEUES] = { .type = NETLINK_TYPE_U32 },
503 [IFLA_CARRIER] = { .type = NETLINK_TYPE_U8 },
504 /*
505 [IFLA_PHYS_PORT_ID] = { .type = NETLINK_TYPE_BINARY, .len = MAX_PHYS_PORT_ID_LEN },
506 */
507 };
508
509 static const NLTypeSystem rtnl_link_type_system = {
510 .count = ELEMENTSOF(rtnl_link_types),
511 .types = rtnl_link_types,
512 };
513
514 /* IFA_FLAGS was defined in kernel 3.14, but we still support older
515 * kernels where IFA_MAX is lower. */
516 static const NLType rtnl_address_types[] = {
517 [IFA_ADDRESS] = { .type = NETLINK_TYPE_IN_ADDR },
518 [IFA_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
519 [IFA_LABEL] = { .type = NETLINK_TYPE_STRING, .size = IFNAMSIZ - 1 },
520 [IFA_BROADCAST] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
521 [IFA_CACHEINFO] = { .type = NETLINK_TYPE_CACHE_INFO, .size = sizeof(struct ifa_cacheinfo) },
522 /*
523 [IFA_ANYCAST],
524 [IFA_MULTICAST],
525 */
526 [IFA_FLAGS] = { .type = NETLINK_TYPE_U32 },
527 };
528
529 static const NLTypeSystem rtnl_address_type_system = {
530 .count = ELEMENTSOF(rtnl_address_types),
531 .types = rtnl_address_types,
532 };
533
534 /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */
535
536 static const NLType rtnl_route_metrics_types[] = {
537 [RTAX_MTU] = { .type = NETLINK_TYPE_U32 },
538 [RTAX_WINDOW] = { .type = NETLINK_TYPE_U32 },
539 [RTAX_RTT] = { .type = NETLINK_TYPE_U32 },
540 [RTAX_RTTVAR] = { .type = NETLINK_TYPE_U32 },
541 [RTAX_SSTHRESH] = { .type = NETLINK_TYPE_U32 },
542 [RTAX_CWND] = { .type = NETLINK_TYPE_U32 },
543 [RTAX_ADVMSS] = { .type = NETLINK_TYPE_U32 },
544 [RTAX_REORDERING] = { .type = NETLINK_TYPE_U32 },
545 [RTAX_HOPLIMIT] = { .type = NETLINK_TYPE_U32 },
546 [RTAX_INITCWND] = { .type = NETLINK_TYPE_U32 },
547 [RTAX_FEATURES] = { .type = NETLINK_TYPE_U32 },
548 [RTAX_RTO_MIN] = { .type = NETLINK_TYPE_U32 },
549 [RTAX_INITRWND] = { .type = NETLINK_TYPE_U32 },
550 [RTAX_QUICKACK] = { .type = NETLINK_TYPE_U32 },
551 };
552
553 static const NLTypeSystem rtnl_route_metrics_type_system = {
554 .count = ELEMENTSOF(rtnl_route_metrics_types),
555 .types = rtnl_route_metrics_types,
556 };
557
558 static const NLType rtnl_route_types[] = {
559 [RTA_DST] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
560 [RTA_SRC] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
561 [RTA_IIF] = { .type = NETLINK_TYPE_U32 },
562 [RTA_OIF] = { .type = NETLINK_TYPE_U32 },
563 [RTA_GATEWAY] = { .type = NETLINK_TYPE_IN_ADDR },
564 [RTA_PRIORITY] = { .type = NETLINK_TYPE_U32 },
565 [RTA_PREFSRC] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
566 [RTA_METRICS] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_metrics_type_system},
567 /* [RTA_MULTIPATH] = { .len = sizeof(struct rtnexthop) },
568 */
569 [RTA_FLOW] = { .type = NETLINK_TYPE_U32 }, /* 6? */
570 /*
571 RTA_CACHEINFO,
572 RTA_TABLE,
573 RTA_MARK,
574 RTA_MFC_STATS,
575 RTA_VIA,
576 RTA_NEWDST,
577 */
578 [RTA_PREF] = { .type = NETLINK_TYPE_U8 },
579 /*
580 RTA_ENCAP_TYPE,
581 RTA_ENCAP,
582 */
583 [RTA_EXPIRES] = { .type = NETLINK_TYPE_U32 },
584 };
585
586 static const NLTypeSystem rtnl_route_type_system = {
587 .count = ELEMENTSOF(rtnl_route_types),
588 .types = rtnl_route_types,
589 };
590
591 static const NLType rtnl_neigh_types[] = {
592 [NDA_DST] = { .type = NETLINK_TYPE_IN_ADDR },
593 [NDA_LLADDR] = { .type = NETLINK_TYPE_ETHER_ADDR },
594 [NDA_CACHEINFO] = { .type = NETLINK_TYPE_CACHE_INFO, .size = sizeof(struct nda_cacheinfo) },
595 [NDA_PROBES] = { .type = NETLINK_TYPE_U32 },
596 [NDA_VLAN] = { .type = NETLINK_TYPE_U16 },
597 [NDA_PORT] = { .type = NETLINK_TYPE_U16 },
598 [NDA_VNI] = { .type = NETLINK_TYPE_U32 },
599 [NDA_IFINDEX] = { .type = NETLINK_TYPE_U32 },
600 };
601
602 static const NLTypeSystem rtnl_neigh_type_system = {
603 .count = ELEMENTSOF(rtnl_neigh_types),
604 .types = rtnl_neigh_types,
605 };
606
607 static const NLType rtnl_addrlabel_types[] = {
608 [IFAL_ADDRESS] = { .type = NETLINK_TYPE_IN_ADDR, .size = sizeof(struct in6_addr) },
609 [IFAL_LABEL] = { .type = NETLINK_TYPE_U32 },
610 };
611
612 static const NLTypeSystem rtnl_addrlabel_type_system = {
613 .count = ELEMENTSOF(rtnl_addrlabel_types),
614 .types = rtnl_addrlabel_types,
615 };
616
617 static const NLType rtnl_routing_policy_rule_types[] = {
618 [FRA_DST] = { .type = NETLINK_TYPE_IN_ADDR },
619 [FRA_SRC] = { .type = NETLINK_TYPE_IN_ADDR },
620 [FRA_IIFNAME] = { .type = NETLINK_TYPE_STRING },
621 [RTA_OIF] = { .type = NETLINK_TYPE_U32 },
622 [RTA_GATEWAY] = { .type = NETLINK_TYPE_IN_ADDR },
623 [FRA_PRIORITY] = { .type = NETLINK_TYPE_U32 },
624 [FRA_FWMARK] = { .type = NETLINK_TYPE_U32 },
625 [FRA_FLOW] = { .type = NETLINK_TYPE_U32 },
626 [FRA_TUN_ID] = { .type = NETLINK_TYPE_U32 },
627 [FRA_SUPPRESS_IFGROUP] = { .type = NETLINK_TYPE_U32 },
628 [FRA_SUPPRESS_PREFIXLEN] = { .type = NETLINK_TYPE_U32 },
629 [FRA_TABLE] = { .type = NETLINK_TYPE_U32 },
630 [FRA_FWMASK] = { .type = NETLINK_TYPE_U32 },
631 [FRA_OIFNAME] = { .type = NETLINK_TYPE_STRING },
632 [FRA_PAD] = { .type = NETLINK_TYPE_U32 },
633 [FRA_L3MDEV] = { .type = NETLINK_TYPE_U64 },
634 [FRA_UID_RANGE] = { .size = sizeof(struct fib_rule_uid_range) },
635 };
636
637 static const NLTypeSystem rtnl_routing_policy_rule_type_system = {
638 .count = ELEMENTSOF(rtnl_routing_policy_rule_types),
639 .types = rtnl_routing_policy_rule_types,
640 };
641
642 static const NLType rtnl_types[] = {
643 [NLMSG_DONE] = { .type = NETLINK_TYPE_NESTED, .type_system = &empty_type_system, .size = 0 },
644 [NLMSG_ERROR] = { .type = NETLINK_TYPE_NESTED, .type_system = &empty_type_system, .size = sizeof(struct nlmsgerr) },
645 [RTM_NEWLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
646 [RTM_DELLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
647 [RTM_GETLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
648 [RTM_SETLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
649 [RTM_NEWADDR] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
650 [RTM_DELADDR] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
651 [RTM_GETADDR] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
652 [RTM_NEWROUTE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
653 [RTM_DELROUTE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
654 [RTM_GETROUTE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
655 [RTM_NEWNEIGH] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
656 [RTM_DELNEIGH] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
657 [RTM_GETNEIGH] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
658 [RTM_NEWADDRLABEL] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_addrlabel_type_system, .size = sizeof(struct ifaddrlblmsg) },
659 [RTM_DELADDRLABEL] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_addrlabel_type_system, .size = sizeof(struct ifaddrlblmsg) },
660 [RTM_GETADDRLABEL] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_addrlabel_type_system, .size = sizeof(struct ifaddrlblmsg) },
661 [RTM_NEWRULE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_routing_policy_rule_type_system, .size = sizeof(struct rtmsg) },
662 [RTM_DELRULE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_routing_policy_rule_type_system, .size = sizeof(struct rtmsg) },
663 [RTM_GETRULE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_routing_policy_rule_type_system, .size = sizeof(struct rtmsg) },
664 };
665
666 const NLTypeSystem rtnl_type_system_root = {
667 .count = ELEMENTSOF(rtnl_types),
668 .types = rtnl_types,
669 };
670
671 static const NLType genl_wireguard_allowedip_types[] = {
672 [WGALLOWEDIP_A_FAMILY] = { .type = NETLINK_TYPE_U16 },
673 [WGALLOWEDIP_A_IPADDR] = { .type = NETLINK_TYPE_IN_ADDR },
674 [WGALLOWEDIP_A_CIDR_MASK] = { .type = NETLINK_TYPE_U8 },
675 };
676
677 static const NLTypeSystem genl_wireguard_allowedip_type_system = {
678 .count = ELEMENTSOF(genl_wireguard_allowedip_types),
679 .types = genl_wireguard_allowedip_types,
680 };
681
682 static const NLType genl_wireguard_peer_types[] = {
683 [WGPEER_A_PUBLIC_KEY] = { .size = WG_KEY_LEN },
684 [WGPEER_A_FLAGS] = { .type = NETLINK_TYPE_U32 },
685 [WGPEER_A_PRESHARED_KEY] = { .size = WG_KEY_LEN },
686 [WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL] = { .type = NETLINK_TYPE_U32 },
687 [WGPEER_A_ENDPOINT] = { /* either size of sockaddr_in or sockaddr_in6 depending on address family */ },
688 [WGPEER_A_ALLOWEDIPS] = { .type = NETLINK_TYPE_NESTED, .type_system = &genl_wireguard_allowedip_type_system },
689 };
690
691 static const NLTypeSystem genl_wireguard_peer_type_system = {
692 .count = ELEMENTSOF(genl_wireguard_peer_types),
693 .types = genl_wireguard_peer_types,
694 };
695
696 static const NLType genl_wireguard_set_device_types[] = {
697 [WGDEVICE_A_IFINDEX] = { .type = NETLINK_TYPE_U32 },
698 [WGDEVICE_A_IFNAME] = { .type = NETLINK_TYPE_STRING },
699 [WGDEVICE_A_FLAGS] = { .type = NETLINK_TYPE_U32 },
700 [WGDEVICE_A_PRIVATE_KEY] = { .size = WG_KEY_LEN },
701 [WGDEVICE_A_LISTEN_PORT] = { .type = NETLINK_TYPE_U16 },
702 [WGDEVICE_A_FWMARK] = { .type = NETLINK_TYPE_U32 },
703 [WGDEVICE_A_PEERS] = { .type = NETLINK_TYPE_NESTED, .type_system = &genl_wireguard_peer_type_system },
704 };
705
706 static const NLTypeSystem genl_wireguard_set_device_type_system = {
707 .count = ELEMENTSOF(genl_wireguard_set_device_types),
708 .types = genl_wireguard_set_device_types,
709 };
710
711 static const NLType genl_wireguard_cmds[] = {
712 [WG_CMD_SET_DEVICE] = { .type = NETLINK_TYPE_NESTED, .type_system = &genl_wireguard_set_device_type_system },
713 };
714
715 static const NLTypeSystem genl_wireguard_type_system = {
716 .count = ELEMENTSOF(genl_wireguard_cmds),
717 .types = genl_wireguard_cmds,
718 };
719
720 static const NLType genl_get_family_types[] = {
721 [CTRL_ATTR_FAMILY_NAME] = { .type = NETLINK_TYPE_STRING },
722 [CTRL_ATTR_FAMILY_ID] = { .type = NETLINK_TYPE_U16 },
723 };
724
725 static const NLTypeSystem genl_get_family_type_system = {
726 .count = ELEMENTSOF(genl_get_family_types),
727 .types = genl_get_family_types,
728 };
729
730 static const NLType genl_ctrl_id_ctrl_cmds[] = {
731 [CTRL_CMD_GETFAMILY] = { .type = NETLINK_TYPE_NESTED, .type_system = &genl_get_family_type_system },
732 };
733
734 static const NLTypeSystem genl_ctrl_id_ctrl_type_system = {
735 .count = ELEMENTSOF(genl_ctrl_id_ctrl_cmds),
736 .types = genl_ctrl_id_ctrl_cmds,
737 };
738
739 static const NLType genl_families[] = {
740 [SD_GENL_ID_CTRL] = { .type = NETLINK_TYPE_NESTED, .type_system = &genl_ctrl_id_ctrl_type_system },
741 [SD_GENL_WIREGUARD] = { .type = NETLINK_TYPE_NESTED, .type_system = &genl_wireguard_type_system },
742 };
743
744 const NLTypeSystem genl_family_type_system_root = {
745 .count = ELEMENTSOF(genl_families),
746 .types = genl_families,
747 };
748
749 static const NLType genl_types[] = {
750 [GENL_ID_CTRL] = { .type = NETLINK_TYPE_NESTED, .type_system = &genl_get_family_type_system, .size = sizeof(struct genlmsghdr) },
751 };
752
753 const NLTypeSystem genl_type_system_root = {
754 .count = ELEMENTSOF(genl_types),
755 .types = genl_types,
756 };
757
758 uint16_t type_get_type(const NLType *type) {
759 assert(type);
760 return type->type;
761 }
762
763 size_t type_get_size(const NLType *type) {
764 assert(type);
765 return type->size;
766 }
767
768 void type_get_type_system(const NLType *nl_type, const NLTypeSystem **ret) {
769 assert(nl_type);
770 assert(ret);
771 assert(nl_type->type == NETLINK_TYPE_NESTED);
772 assert(nl_type->type_system);
773
774 *ret = nl_type->type_system;
775 }
776
777 void type_get_type_system_union(const NLType *nl_type, const NLTypeSystemUnion **ret) {
778 assert(nl_type);
779 assert(ret);
780 assert(nl_type->type == NETLINK_TYPE_UNION);
781 assert(nl_type->type_system_union);
782
783 *ret = nl_type->type_system_union;
784 }
785
786 uint16_t type_system_get_count(const NLTypeSystem *type_system) {
787 assert(type_system);
788 return type_system->count;
789 }
790
791 const NLTypeSystem *type_system_get_root(int protocol) {
792 switch (protocol) {
793 case NETLINK_GENERIC:
794 return &genl_type_system_root;
795 default: /* NETLINK_ROUTE: */
796 return &rtnl_type_system_root;
797 }
798 }
799
800 int type_system_get_type(const NLTypeSystem *type_system, const NLType **ret, uint16_t type) {
801 const NLType *nl_type;
802
803 assert(ret);
804 assert(type_system);
805 assert(type_system->types);
806
807 if (type >= type_system->count)
808 return -EOPNOTSUPP;
809
810 nl_type = &type_system->types[type];
811
812 if (nl_type->type == NETLINK_TYPE_UNSPEC)
813 return -EOPNOTSUPP;
814
815 *ret = nl_type;
816
817 return 0;
818 }
819
820 int type_system_get_type_system(const NLTypeSystem *type_system, const NLTypeSystem **ret, uint16_t type) {
821 const NLType *nl_type;
822 int r;
823
824 assert(ret);
825
826 r = type_system_get_type(type_system, &nl_type, type);
827 if (r < 0)
828 return r;
829
830 type_get_type_system(nl_type, ret);
831 return 0;
832 }
833
834 int type_system_get_type_system_union(const NLTypeSystem *type_system, const NLTypeSystemUnion **ret, uint16_t type) {
835 const NLType *nl_type;
836 int r;
837
838 assert(ret);
839
840 r = type_system_get_type(type_system, &nl_type, type);
841 if (r < 0)
842 return r;
843
844 type_get_type_system_union(nl_type, ret);
845 return 0;
846 }
847
848 int type_system_union_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, const char *key) {
849 int type;
850
851 assert(type_system_union);
852 assert(type_system_union->match_type == NL_MATCH_SIBLING);
853 assert(type_system_union->lookup);
854 assert(type_system_union->type_systems);
855 assert(ret);
856 assert(key);
857
858 type = type_system_union->lookup(key);
859 if (type < 0)
860 return -EOPNOTSUPP;
861
862 assert(type < type_system_union->num);
863
864 *ret = &type_system_union->type_systems[type];
865
866 return 0;
867 }
868
869 int type_system_union_protocol_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, uint16_t protocol) {
870 const NLTypeSystem *type_system;
871
872 assert(type_system_union);
873 assert(type_system_union->type_systems);
874 assert(type_system_union->match_type == NL_MATCH_PROTOCOL);
875 assert(ret);
876
877 if (protocol >= type_system_union->num)
878 return -EOPNOTSUPP;
879
880 type_system = &type_system_union->type_systems[protocol];
881 if (!type_system->types)
882 return -EOPNOTSUPP;
883
884 *ret = type_system;
885
886 return 0;
887 }