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[systemd.git] / src / libsystemd / sd-netlink / netlink-types.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
2 /***
3 This file is part of systemd.
4
5 Copyright 2014 Tom Gundersen <teg@jklm.no>
6
7 systemd is free software; you can redistribute it and/or modify it
8 under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 2.1 of the License, or
10 (at your option) any later version.
11
12 systemd is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public License
18 along with systemd; If not, see <http://www.gnu.org/licenses/>.
19 ***/
20
21 #include <stdint.h>
22 #include <sys/socket.h>
23 #include <linux/netlink.h>
24 #include <linux/rtnetlink.h>
25 #include <linux/can/netlink.h>
26 #include <linux/fib_rules.h>
27 #include <linux/in6.h>
28 #include <linux/veth.h>
29 #include <linux/if_bridge.h>
30 #include <linux/if_addr.h>
31 #include <linux/if_addrlabel.h>
32 #include <linux/if.h>
33 #include <linux/ip.h>
34 #include <linux/if_addr.h>
35 #include <linux/if_bridge.h>
36 #include <linux/if_link.h>
37 #include <linux/if_tunnel.h>
38 #include <linux/fib_rules.h>
39
40 #if HAVE_VXCAN_INFO_PEER
41 #include <linux/can/vxcan.h>
42 #endif
43
44 #include "macro.h"
45 #include "missing.h"
46 #include "netlink-types.h"
47 #include "string-table.h"
48 #include "util.h"
49
50 /* Maximum ARP IP target defined in kernel */
51 #define BOND_MAX_ARP_TARGETS 16
52
53 typedef enum {
54 BOND_ARP_TARGETS_0,
55 BOND_ARP_TARGETS_1,
56 BOND_ARP_TARGETS_2,
57 BOND_ARP_TARGETS_3,
58 BOND_ARP_TARGETS_4,
59 BOND_ARP_TARGETS_5,
60 BOND_ARP_TARGETS_6,
61 BOND_ARP_TARGETS_7,
62 BOND_ARP_TARGETS_8,
63 BOND_ARP_TARGETS_9,
64 BOND_ARP_TARGETS_10,
65 BOND_ARP_TARGETS_11,
66 BOND_ARP_TARGETS_12,
67 BOND_ARP_TARGETS_13,
68 BOND_ARP_TARGETS_14,
69 BOND_ARP_TARGETS_MAX = BOND_MAX_ARP_TARGETS,
70 } BondArpTargets;
71
72 struct NLType {
73 uint16_t type;
74 size_t size;
75 const NLTypeSystem *type_system;
76 const NLTypeSystemUnion *type_system_union;
77 };
78
79 struct NLTypeSystem {
80 uint16_t count;
81 const NLType *types;
82 };
83
84 static const NLTypeSystem rtnl_link_type_system;
85
86 static const NLType empty_types[1] = {
87 /* fake array to avoid .types==NULL, which denotes invalid type-systems */
88 };
89
90 static const NLTypeSystem empty_type_system = {
91 .count = 0,
92 .types = empty_types,
93 };
94
95 static const NLType rtnl_link_info_data_veth_types[] = {
96 [VETH_INFO_PEER] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
97 };
98
99 static const NLType rtnl_link_info_data_vxcan_types[] = {
100 [VXCAN_INFO_PEER] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
101 };
102
103 static const NLType rtnl_link_info_data_ipvlan_types[] = {
104 [IFLA_IPVLAN_MODE] = { .type = NETLINK_TYPE_U16 },
105 };
106
107 static const NLType rtnl_link_info_data_macvlan_types[] = {
108 [IFLA_MACVLAN_MODE] = { .type = NETLINK_TYPE_U32 },
109 [IFLA_MACVLAN_FLAGS] = { .type = NETLINK_TYPE_U16 },
110 };
111
112 static const NLType rtnl_link_info_data_bridge_types[] = {
113 [IFLA_BR_FORWARD_DELAY] = { .type = NETLINK_TYPE_U32 },
114 [IFLA_BR_HELLO_TIME] = { .type = NETLINK_TYPE_U32 },
115 [IFLA_BR_MAX_AGE] = { .type = NETLINK_TYPE_U32 },
116 [IFLA_BR_AGEING_TIME] = { .type = NETLINK_TYPE_U32 },
117 [IFLA_BR_STP_STATE] = { .type = NETLINK_TYPE_U32 },
118 [IFLA_BR_PRIORITY] = { .type = NETLINK_TYPE_U16 },
119 [IFLA_BR_VLAN_FILTERING] = { .type = NETLINK_TYPE_U8 },
120 [IFLA_BR_VLAN_PROTOCOL] = { .type = NETLINK_TYPE_U16 },
121 [IFLA_BR_GROUP_FWD_MASK] = { .type = NETLINK_TYPE_U16 },
122 [IFLA_BR_ROOT_PORT] = { .type = NETLINK_TYPE_U16 },
123 [IFLA_BR_ROOT_PATH_COST] = { .type = NETLINK_TYPE_U32 },
124 [IFLA_BR_TOPOLOGY_CHANGE] = { .type = NETLINK_TYPE_U8 },
125 [IFLA_BR_TOPOLOGY_CHANGE_DETECTED] = { .type = NETLINK_TYPE_U8 },
126 [IFLA_BR_HELLO_TIMER] = { .type = NETLINK_TYPE_U16 },
127 [IFLA_BR_TCN_TIMER] = { .type = NETLINK_TYPE_U16 },
128 [IFLA_BR_TOPOLOGY_CHANGE_TIMER] = { .type = NETLINK_TYPE_U16 },
129 [IFLA_BR_GC_TIMER] = { .type = NETLINK_TYPE_U64 },
130 [IFLA_BR_GROUP_ADDR] = { .type = NETLINK_TYPE_U16 },
131 [IFLA_BR_FDB_FLUSH] = { .type = NETLINK_TYPE_U16 },
132 [IFLA_BR_MCAST_ROUTER] = { .type = NETLINK_TYPE_U8 },
133 [IFLA_BR_MCAST_SNOOPING] = { .type = NETLINK_TYPE_U8 },
134 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NETLINK_TYPE_U8 },
135 [IFLA_BR_MCAST_QUERIER] = { .type = NETLINK_TYPE_U8 },
136 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NETLINK_TYPE_U32 },
137 [IFLA_BR_MCAST_HASH_MAX] = { .type = NETLINK_TYPE_U16 },
138 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NETLINK_TYPE_U32 },
139 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NETLINK_TYPE_U16 },
140 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NETLINK_TYPE_U64 },
141 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NETLINK_TYPE_U64 },
142 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NETLINK_TYPE_U64 },
143 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NETLINK_TYPE_U64 },
144 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NETLINK_TYPE_U64 },
145 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NETLINK_TYPE_U64 },
146 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NETLINK_TYPE_U8 },
147 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NETLINK_TYPE_U8 },
148 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NETLINK_TYPE_U8 },
149 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NETLINK_TYPE_U16 },
150 };
151
152 static const NLType rtnl_link_info_data_vlan_types[] = {
153 [IFLA_VLAN_ID] = { .type = NETLINK_TYPE_U16 },
154 /*
155 [IFLA_VLAN_FLAGS] = { .len = sizeof(struct ifla_vlan_flags) },
156 [IFLA_VLAN_EGRESS_QOS] = { .type = NETLINK_TYPE_NESTED },
157 [IFLA_VLAN_INGRESS_QOS] = { .type = NETLINK_TYPE_NESTED },
158 */
159 [IFLA_VLAN_PROTOCOL] = { .type = NETLINK_TYPE_U16 },
160 };
161
162 static const NLType rtnl_link_info_data_vxlan_types[] = {
163 [IFLA_VXLAN_ID] = { .type = NETLINK_TYPE_U32 },
164 [IFLA_VXLAN_GROUP] = { .type = NETLINK_TYPE_IN_ADDR },
165 [IFLA_VXLAN_LINK] = { .type = NETLINK_TYPE_U32 },
166 [IFLA_VXLAN_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
167 [IFLA_VXLAN_TTL] = { .type = NETLINK_TYPE_U8 },
168 [IFLA_VXLAN_TOS] = { .type = NETLINK_TYPE_U8 },
169 [IFLA_VXLAN_LEARNING] = { .type = NETLINK_TYPE_U8 },
170 [IFLA_VXLAN_AGEING] = { .type = NETLINK_TYPE_U32 },
171 [IFLA_VXLAN_LIMIT] = { .type = NETLINK_TYPE_U32 },
172 [IFLA_VXLAN_PORT_RANGE] = { .type = NETLINK_TYPE_U32},
173 [IFLA_VXLAN_PROXY] = { .type = NETLINK_TYPE_U8 },
174 [IFLA_VXLAN_RSC] = { .type = NETLINK_TYPE_U8 },
175 [IFLA_VXLAN_L2MISS] = { .type = NETLINK_TYPE_U8 },
176 [IFLA_VXLAN_L3MISS] = { .type = NETLINK_TYPE_U8 },
177 [IFLA_VXLAN_PORT] = { .type = NETLINK_TYPE_U16 },
178 [IFLA_VXLAN_GROUP6] = { .type = NETLINK_TYPE_IN_ADDR },
179 [IFLA_VXLAN_LOCAL6] = { .type = NETLINK_TYPE_IN_ADDR },
180 [IFLA_VXLAN_UDP_CSUM] = { .type = NETLINK_TYPE_U8 },
181 [IFLA_VXLAN_UDP_ZERO_CSUM6_TX] = { .type = NETLINK_TYPE_U8 },
182 [IFLA_VXLAN_UDP_ZERO_CSUM6_RX] = { .type = NETLINK_TYPE_U8 },
183 [IFLA_VXLAN_REMCSUM_TX] = { .type = NETLINK_TYPE_U8 },
184 [IFLA_VXLAN_REMCSUM_RX] = { .type = NETLINK_TYPE_U8 },
185 [IFLA_VXLAN_GBP] = { .type = NETLINK_TYPE_FLAG },
186 [IFLA_VXLAN_REMCSUM_NOPARTIAL] = { .type = NETLINK_TYPE_FLAG },
187 [IFLA_VXLAN_COLLECT_METADATA] = { .type = NETLINK_TYPE_U8 },
188 [IFLA_VXLAN_LABEL] = { .type = NETLINK_TYPE_U32 },
189 [IFLA_VXLAN_GPE] = { .type = NETLINK_TYPE_FLAG },
190 };
191
192 static const NLType rtnl_bond_arp_target_types[] = {
193 [BOND_ARP_TARGETS_0] = { .type = NETLINK_TYPE_U32 },
194 [BOND_ARP_TARGETS_1] = { .type = NETLINK_TYPE_U32 },
195 [BOND_ARP_TARGETS_2] = { .type = NETLINK_TYPE_U32 },
196 [BOND_ARP_TARGETS_3] = { .type = NETLINK_TYPE_U32 },
197 [BOND_ARP_TARGETS_4] = { .type = NETLINK_TYPE_U32 },
198 [BOND_ARP_TARGETS_5] = { .type = NETLINK_TYPE_U32 },
199 [BOND_ARP_TARGETS_6] = { .type = NETLINK_TYPE_U32 },
200 [BOND_ARP_TARGETS_7] = { .type = NETLINK_TYPE_U32 },
201 [BOND_ARP_TARGETS_8] = { .type = NETLINK_TYPE_U32 },
202 [BOND_ARP_TARGETS_9] = { .type = NETLINK_TYPE_U32 },
203 [BOND_ARP_TARGETS_10] = { .type = NETLINK_TYPE_U32 },
204 [BOND_ARP_TARGETS_11] = { .type = NETLINK_TYPE_U32 },
205 [BOND_ARP_TARGETS_12] = { .type = NETLINK_TYPE_U32 },
206 [BOND_ARP_TARGETS_13] = { .type = NETLINK_TYPE_U32 },
207 [BOND_ARP_TARGETS_14] = { .type = NETLINK_TYPE_U32 },
208 [BOND_ARP_TARGETS_MAX] = { .type = NETLINK_TYPE_U32 },
209 };
210
211 static const NLTypeSystem rtnl_bond_arp_type_system = {
212 .count = ELEMENTSOF(rtnl_bond_arp_target_types),
213 .types = rtnl_bond_arp_target_types,
214 };
215
216 static const NLType rtnl_link_info_data_bond_types[] = {
217 [IFLA_BOND_MODE] = { .type = NETLINK_TYPE_U8 },
218 [IFLA_BOND_ACTIVE_SLAVE] = { .type = NETLINK_TYPE_U32 },
219 [IFLA_BOND_MIIMON] = { .type = NETLINK_TYPE_U32 },
220 [IFLA_BOND_UPDELAY] = { .type = NETLINK_TYPE_U32 },
221 [IFLA_BOND_DOWNDELAY] = { .type = NETLINK_TYPE_U32 },
222 [IFLA_BOND_USE_CARRIER] = { .type = NETLINK_TYPE_U8 },
223 [IFLA_BOND_ARP_INTERVAL] = { .type = NETLINK_TYPE_U32 },
224 [IFLA_BOND_ARP_IP_TARGET] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_bond_arp_type_system },
225 [IFLA_BOND_ARP_VALIDATE] = { .type = NETLINK_TYPE_U32 },
226 [IFLA_BOND_ARP_ALL_TARGETS] = { .type = NETLINK_TYPE_U32 },
227 [IFLA_BOND_PRIMARY] = { .type = NETLINK_TYPE_U32 },
228 [IFLA_BOND_PRIMARY_RESELECT] = { .type = NETLINK_TYPE_U8 },
229 [IFLA_BOND_FAIL_OVER_MAC] = { .type = NETLINK_TYPE_U8 },
230 [IFLA_BOND_XMIT_HASH_POLICY] = { .type = NETLINK_TYPE_U8 },
231 [IFLA_BOND_RESEND_IGMP] = { .type = NETLINK_TYPE_U32 },
232 [IFLA_BOND_NUM_PEER_NOTIF] = { .type = NETLINK_TYPE_U8 },
233 [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NETLINK_TYPE_U8 },
234 [IFLA_BOND_MIN_LINKS] = { .type = NETLINK_TYPE_U32 },
235 [IFLA_BOND_LP_INTERVAL] = { .type = NETLINK_TYPE_U32 },
236 [IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NETLINK_TYPE_U32 },
237 [IFLA_BOND_AD_LACP_RATE] = { .type = NETLINK_TYPE_U8 },
238 [IFLA_BOND_AD_SELECT] = { .type = NETLINK_TYPE_U8 },
239 [IFLA_BOND_AD_INFO] = { .type = NETLINK_TYPE_NESTED },
240 };
241
242 static const NLType rtnl_link_info_data_iptun_types[] = {
243 [IFLA_IPTUN_LINK] = { .type = NETLINK_TYPE_U32 },
244 [IFLA_IPTUN_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
245 [IFLA_IPTUN_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
246 [IFLA_IPTUN_TTL] = { .type = NETLINK_TYPE_U8 },
247 [IFLA_IPTUN_TOS] = { .type = NETLINK_TYPE_U8 },
248 [IFLA_IPTUN_PMTUDISC] = { .type = NETLINK_TYPE_U8 },
249 [IFLA_IPTUN_FLAGS] = { .type = NETLINK_TYPE_U16 },
250 [IFLA_IPTUN_PROTO] = { .type = NETLINK_TYPE_U8 },
251 [IFLA_IPTUN_6RD_PREFIX] = { .type = NETLINK_TYPE_IN_ADDR },
252 [IFLA_IPTUN_6RD_RELAY_PREFIX] = { .type = NETLINK_TYPE_U32 },
253 [IFLA_IPTUN_6RD_PREFIXLEN] = { .type = NETLINK_TYPE_U16 },
254 [IFLA_IPTUN_6RD_RELAY_PREFIXLEN] = { .type = NETLINK_TYPE_U16 },
255 [IFLA_IPTUN_ENCAP_TYPE] = { .type = NETLINK_TYPE_U16 },
256 [IFLA_IPTUN_ENCAP_FLAGS] = { .type = NETLINK_TYPE_U16 },
257 [IFLA_IPTUN_ENCAP_SPORT] = { .type = NETLINK_TYPE_U16 },
258 [IFLA_IPTUN_ENCAP_DPORT] = { .type = NETLINK_TYPE_U16 },
259 };
260
261 static const NLType rtnl_link_info_data_ipgre_types[] = {
262 [IFLA_GRE_LINK] = { .type = NETLINK_TYPE_U32 },
263 [IFLA_GRE_IFLAGS] = { .type = NETLINK_TYPE_U16 },
264 [IFLA_GRE_OFLAGS] = { .type = NETLINK_TYPE_U16 },
265 [IFLA_GRE_IKEY] = { .type = NETLINK_TYPE_U32 },
266 [IFLA_GRE_OKEY] = { .type = NETLINK_TYPE_U32 },
267 [IFLA_GRE_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
268 [IFLA_GRE_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
269 [IFLA_GRE_TTL] = { .type = NETLINK_TYPE_U8 },
270 [IFLA_GRE_TOS] = { .type = NETLINK_TYPE_U8 },
271 [IFLA_GRE_PMTUDISC] = { .type = NETLINK_TYPE_U8 },
272 [IFLA_GRE_FLOWINFO] = { .type = NETLINK_TYPE_U32 },
273 [IFLA_GRE_FLAGS] = { .type = NETLINK_TYPE_U32 },
274 [IFLA_GRE_ENCAP_TYPE] = { .type = NETLINK_TYPE_U16 },
275 [IFLA_GRE_ENCAP_FLAGS] = { .type = NETLINK_TYPE_U16 },
276 [IFLA_GRE_ENCAP_SPORT] = { .type = NETLINK_TYPE_U16 },
277 [IFLA_GRE_ENCAP_DPORT] = { .type = NETLINK_TYPE_U16 },
278 };
279
280 static const NLType rtnl_link_info_data_ipvti_types[] = {
281 [IFLA_VTI_LINK] = { .type = NETLINK_TYPE_U32 },
282 [IFLA_VTI_IKEY] = { .type = NETLINK_TYPE_U32 },
283 [IFLA_VTI_OKEY] = { .type = NETLINK_TYPE_U32 },
284 [IFLA_VTI_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
285 [IFLA_VTI_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
286 };
287
288 static const NLType rtnl_link_info_data_ip6tnl_types[] = {
289 [IFLA_IPTUN_LINK] = { .type = NETLINK_TYPE_U32 },
290 [IFLA_IPTUN_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
291 [IFLA_IPTUN_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
292 [IFLA_IPTUN_TTL] = { .type = NETLINK_TYPE_U8 },
293 [IFLA_IPTUN_FLAGS] = { .type = NETLINK_TYPE_U32 },
294 [IFLA_IPTUN_PROTO] = { .type = NETLINK_TYPE_U8 },
295 [IFLA_IPTUN_ENCAP_LIMIT] = { .type = NETLINK_TYPE_U8 },
296 [IFLA_IPTUN_FLOWINFO] = { .type = NETLINK_TYPE_U32 },
297 };
298
299 static const NLType rtnl_link_info_data_vrf_types[] = {
300 [IFLA_VRF_TABLE] = { .type = NETLINK_TYPE_U32 },
301 };
302
303 static const NLType rtnl_link_info_data_geneve_types[] = {
304 [IFLA_GENEVE_ID] = { .type = NETLINK_TYPE_U32 },
305 [IFLA_GENEVE_TTL] = { .type = NETLINK_TYPE_U8 },
306 [IFLA_GENEVE_TOS] = { .type = NETLINK_TYPE_U8 },
307 [IFLA_GENEVE_PORT] = { .type = NETLINK_TYPE_U16 },
308 [IFLA_GENEVE_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
309 [IFLA_GENEVE_REMOTE6] = { .type = NETLINK_TYPE_IN_ADDR },
310 [IFLA_GENEVE_UDP_CSUM] = { .type = NETLINK_TYPE_U8 },
311 [IFLA_GENEVE_UDP_ZERO_CSUM6_TX] = { .type = NETLINK_TYPE_U8 },
312 [IFLA_GENEVE_UDP_ZERO_CSUM6_RX] = { .type = NETLINK_TYPE_U8 },
313 [IFLA_GENEVE_LABEL] = { .type = NETLINK_TYPE_U32 },
314 };
315
316 /* these strings must match the .kind entries in the kernel */
317 static const char* const nl_union_link_info_data_table[] = {
318 [NL_UNION_LINK_INFO_DATA_BOND] = "bond",
319 [NL_UNION_LINK_INFO_DATA_BRIDGE] = "bridge",
320 [NL_UNION_LINK_INFO_DATA_VLAN] = "vlan",
321 [NL_UNION_LINK_INFO_DATA_VETH] = "veth",
322 [NL_UNION_LINK_INFO_DATA_DUMMY] = "dummy",
323 [NL_UNION_LINK_INFO_DATA_MACVLAN] = "macvlan",
324 [NL_UNION_LINK_INFO_DATA_MACVTAP] = "macvtap",
325 [NL_UNION_LINK_INFO_DATA_IPVLAN] = "ipvlan",
326 [NL_UNION_LINK_INFO_DATA_VXLAN] = "vxlan",
327 [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = "ipip",
328 [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = "gre",
329 [NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = "gretap",
330 [NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = "ip6gre",
331 [NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = "ip6gretap",
332 [NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = "sit",
333 [NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = "vti",
334 [NL_UNION_LINK_INFO_DATA_VTI6_TUNNEL] = "vti6",
335 [NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = "ip6tnl",
336 [NL_UNION_LINK_INFO_DATA_VRF] = "vrf",
337 [NL_UNION_LINK_INFO_DATA_VCAN] = "vcan",
338 [NL_UNION_LINK_INFO_DATA_GENEVE] = "geneve",
339 [NL_UNION_LINK_INFO_DATA_VXCAN] = "vxcan",
340
341 };
342
343 DEFINE_STRING_TABLE_LOOKUP(nl_union_link_info_data, NLUnionLinkInfoData);
344
345 static const NLTypeSystem rtnl_link_info_data_type_systems[] = {
346 [NL_UNION_LINK_INFO_DATA_BOND] = { .count = ELEMENTSOF(rtnl_link_info_data_bond_types),
347 .types = rtnl_link_info_data_bond_types },
348 [NL_UNION_LINK_INFO_DATA_BRIDGE] = { .count = ELEMENTSOF(rtnl_link_info_data_bridge_types),
349 .types = rtnl_link_info_data_bridge_types },
350 [NL_UNION_LINK_INFO_DATA_VLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vlan_types),
351 .types = rtnl_link_info_data_vlan_types },
352 [NL_UNION_LINK_INFO_DATA_VETH] = { .count = ELEMENTSOF(rtnl_link_info_data_veth_types),
353 .types = rtnl_link_info_data_veth_types },
354 [NL_UNION_LINK_INFO_DATA_MACVLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_macvlan_types),
355 .types = rtnl_link_info_data_macvlan_types },
356 [NL_UNION_LINK_INFO_DATA_MACVTAP] = { .count = ELEMENTSOF(rtnl_link_info_data_macvlan_types),
357 .types = rtnl_link_info_data_macvlan_types },
358 [NL_UNION_LINK_INFO_DATA_IPVLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvlan_types),
359 .types = rtnl_link_info_data_ipvlan_types },
360 [NL_UNION_LINK_INFO_DATA_VXLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vxlan_types),
361 .types = rtnl_link_info_data_vxlan_types },
362 [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_iptun_types),
363 .types = rtnl_link_info_data_iptun_types },
364 [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
365 .types = rtnl_link_info_data_ipgre_types },
366 [NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
367 .types = rtnl_link_info_data_ipgre_types },
368 [NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
369 .types = rtnl_link_info_data_ipgre_types },
370 [NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
371 .types = rtnl_link_info_data_ipgre_types },
372 [NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_iptun_types),
373 .types = rtnl_link_info_data_iptun_types },
374 [NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvti_types),
375 .types = rtnl_link_info_data_ipvti_types },
376 [NL_UNION_LINK_INFO_DATA_VTI6_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvti_types),
377 .types = rtnl_link_info_data_ipvti_types },
378 [NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ip6tnl_types),
379 .types = rtnl_link_info_data_ip6tnl_types },
380 [NL_UNION_LINK_INFO_DATA_VRF] = { .count = ELEMENTSOF(rtnl_link_info_data_vrf_types),
381 .types = rtnl_link_info_data_vrf_types },
382 [NL_UNION_LINK_INFO_DATA_GENEVE] = { .count = ELEMENTSOF(rtnl_link_info_data_geneve_types),
383 .types = rtnl_link_info_data_geneve_types },
384 [NL_UNION_LINK_INFO_DATA_VXCAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vxcan_types),
385 .types = rtnl_link_info_data_vxcan_types },
386 };
387
388 static const NLTypeSystemUnion rtnl_link_info_data_type_system_union = {
389 .num = _NL_UNION_LINK_INFO_DATA_MAX,
390 .lookup = nl_union_link_info_data_from_string,
391 .type_systems = rtnl_link_info_data_type_systems,
392 .match_type = NL_MATCH_SIBLING,
393 .match = IFLA_INFO_KIND,
394 };
395
396 static const NLType rtnl_link_info_types[] = {
397 [IFLA_INFO_KIND] = { .type = NETLINK_TYPE_STRING },
398 [IFLA_INFO_DATA] = { .type = NETLINK_TYPE_UNION, .type_system_union = &rtnl_link_info_data_type_system_union},
399 /*
400 [IFLA_INFO_XSTATS],
401 [IFLA_INFO_SLAVE_KIND] = { .type = NETLINK_TYPE_STRING },
402 [IFLA_INFO_SLAVE_DATA] = { .type = NETLINK_TYPE_NESTED },
403 */
404 };
405
406 static const NLTypeSystem rtnl_link_info_type_system = {
407 .count = ELEMENTSOF(rtnl_link_info_types),
408 .types = rtnl_link_info_types,
409 };
410
411 static const struct NLType rtnl_prot_info_bridge_port_types[] = {
412 [IFLA_BRPORT_STATE] = { .type = NETLINK_TYPE_U8 },
413 [IFLA_BRPORT_COST] = { .type = NETLINK_TYPE_U32 },
414 [IFLA_BRPORT_PRIORITY] = { .type = NETLINK_TYPE_U16 },
415 [IFLA_BRPORT_MODE] = { .type = NETLINK_TYPE_U8 },
416 [IFLA_BRPORT_GUARD] = { .type = NETLINK_TYPE_U8 },
417 [IFLA_BRPORT_PROTECT] = { .type = NETLINK_TYPE_U8 },
418 [IFLA_BRPORT_FAST_LEAVE] = { .type = NETLINK_TYPE_U8 },
419 [IFLA_BRPORT_LEARNING] = { .type = NETLINK_TYPE_U8 },
420 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NETLINK_TYPE_U8 },
421 [IFLA_BRPORT_PROXYARP] = { .type = NETLINK_TYPE_U8 },
422 [IFLA_BRPORT_LEARNING_SYNC] = { .type = NETLINK_TYPE_U8 },
423 };
424
425 static const NLTypeSystem rtnl_prot_info_type_systems[] = {
426 [AF_BRIDGE] = { .count = ELEMENTSOF(rtnl_prot_info_bridge_port_types),
427 .types = rtnl_prot_info_bridge_port_types },
428 };
429
430 static const NLTypeSystemUnion rtnl_prot_info_type_system_union = {
431 .num = AF_MAX,
432 .type_systems = rtnl_prot_info_type_systems,
433 .match_type = NL_MATCH_PROTOCOL,
434 };
435
436 static const struct NLType rtnl_af_spec_inet6_types[] = {
437 [IFLA_INET6_FLAGS] = { .type = NETLINK_TYPE_U32 },
438 /*
439 IFLA_INET6_CONF,
440 IFLA_INET6_STATS,
441 IFLA_INET6_MCAST,
442 IFLA_INET6_CACHEINFO,
443 IFLA_INET6_ICMP6STATS,
444 */
445 [IFLA_INET6_TOKEN] = { .type = NETLINK_TYPE_IN_ADDR },
446 [IFLA_INET6_ADDR_GEN_MODE] = { .type = NETLINK_TYPE_U8 },
447 };
448
449 static const NLTypeSystem rtnl_af_spec_inet6_type_system = {
450 .count = ELEMENTSOF(rtnl_af_spec_inet6_types),
451 .types = rtnl_af_spec_inet6_types,
452 };
453
454 static const NLType rtnl_af_spec_types[] = {
455 [AF_INET6] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_af_spec_inet6_type_system },
456 };
457
458 static const NLTypeSystem rtnl_af_spec_type_system = {
459 .count = ELEMENTSOF(rtnl_af_spec_types),
460 .types = rtnl_af_spec_types,
461 };
462
463 static const NLType rtnl_link_types[] = {
464 [IFLA_ADDRESS] = { .type = NETLINK_TYPE_ETHER_ADDR },
465 [IFLA_BROADCAST] = { .type = NETLINK_TYPE_ETHER_ADDR },
466 [IFLA_IFNAME] = { .type = NETLINK_TYPE_STRING, .size = IFNAMSIZ - 1 },
467 [IFLA_MTU] = { .type = NETLINK_TYPE_U32 },
468 [IFLA_LINK] = { .type = NETLINK_TYPE_U32 },
469 /*
470 [IFLA_QDISC],
471 [IFLA_STATS],
472 [IFLA_COST],
473 [IFLA_PRIORITY],
474 */
475 [IFLA_MASTER] = { .type = NETLINK_TYPE_U32 },
476 /*
477 [IFLA_WIRELESS],
478 */
479 [IFLA_PROTINFO] = { .type = NETLINK_TYPE_UNION, .type_system_union = &rtnl_prot_info_type_system_union },
480 [IFLA_TXQLEN] = { .type = NETLINK_TYPE_U32 },
481 /*
482 [IFLA_MAP] = { .len = sizeof(struct rtnl_link_ifmap) },
483 */
484 [IFLA_WEIGHT] = { .type = NETLINK_TYPE_U32 },
485 [IFLA_OPERSTATE] = { .type = NETLINK_TYPE_U8 },
486 [IFLA_LINKMODE] = { .type = NETLINK_TYPE_U8 },
487 [IFLA_LINKINFO] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_info_type_system },
488 [IFLA_NET_NS_PID] = { .type = NETLINK_TYPE_U32 },
489 [IFLA_IFALIAS] = { .type = NETLINK_TYPE_STRING, .size = IFALIASZ - 1 },
490 /*
491 [IFLA_NUM_VF],
492 [IFLA_VFINFO_LIST] = {. type = NETLINK_TYPE_NESTED, },
493 [IFLA_STATS64],
494 [IFLA_VF_PORTS] = { .type = NETLINK_TYPE_NESTED },
495 [IFLA_PORT_SELF] = { .type = NETLINK_TYPE_NESTED },
496 */
497 [IFLA_AF_SPEC] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_af_spec_type_system },
498 /*
499 [IFLA_VF_PORTS],
500 [IFLA_PORT_SELF],
501 [IFLA_AF_SPEC],
502 */
503 [IFLA_GROUP] = { .type = NETLINK_TYPE_U32 },
504 [IFLA_NET_NS_FD] = { .type = NETLINK_TYPE_U32 },
505 [IFLA_EXT_MASK] = { .type = NETLINK_TYPE_U32 },
506 [IFLA_PROMISCUITY] = { .type = NETLINK_TYPE_U32 },
507 [IFLA_NUM_TX_QUEUES] = { .type = NETLINK_TYPE_U32 },
508 [IFLA_NUM_RX_QUEUES] = { .type = NETLINK_TYPE_U32 },
509 [IFLA_CARRIER] = { .type = NETLINK_TYPE_U8 },
510 /*
511 [IFLA_PHYS_PORT_ID] = { .type = NETLINK_TYPE_BINARY, .len = MAX_PHYS_PORT_ID_LEN },
512 */
513 };
514
515 static const NLTypeSystem rtnl_link_type_system = {
516 .count = ELEMENTSOF(rtnl_link_types),
517 .types = rtnl_link_types,
518 };
519
520 /* IFA_FLAGS was defined in kernel 3.14, but we still support older
521 * kernels where IFA_MAX is lower. */
522 static const NLType rtnl_address_types[] = {
523 [IFA_ADDRESS] = { .type = NETLINK_TYPE_IN_ADDR },
524 [IFA_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
525 [IFA_LABEL] = { .type = NETLINK_TYPE_STRING, .size = IFNAMSIZ - 1 },
526 [IFA_BROADCAST] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
527 [IFA_CACHEINFO] = { .type = NETLINK_TYPE_CACHE_INFO, .size = sizeof(struct ifa_cacheinfo) },
528 /*
529 [IFA_ANYCAST],
530 [IFA_MULTICAST],
531 */
532 [IFA_FLAGS] = { .type = NETLINK_TYPE_U32 },
533 };
534
535 static const NLTypeSystem rtnl_address_type_system = {
536 .count = ELEMENTSOF(rtnl_address_types),
537 .types = rtnl_address_types,
538 };
539
540 /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */
541
542 static const NLType rtnl_route_metrics_types[] = {
543 [RTAX_MTU] = { .type = NETLINK_TYPE_U32 },
544 [RTAX_WINDOW] = { .type = NETLINK_TYPE_U32 },
545 [RTAX_RTT] = { .type = NETLINK_TYPE_U32 },
546 [RTAX_RTTVAR] = { .type = NETLINK_TYPE_U32 },
547 [RTAX_SSTHRESH] = { .type = NETLINK_TYPE_U32 },
548 [RTAX_CWND] = { .type = NETLINK_TYPE_U32 },
549 [RTAX_ADVMSS] = { .type = NETLINK_TYPE_U32 },
550 [RTAX_REORDERING] = { .type = NETLINK_TYPE_U32 },
551 [RTAX_HOPLIMIT] = { .type = NETLINK_TYPE_U32 },
552 [RTAX_INITCWND] = { .type = NETLINK_TYPE_U32 },
553 [RTAX_FEATURES] = { .type = NETLINK_TYPE_U32 },
554 [RTAX_RTO_MIN] = { .type = NETLINK_TYPE_U32 },
555 };
556
557 static const NLTypeSystem rtnl_route_metrics_type_system = {
558 .count = ELEMENTSOF(rtnl_route_metrics_types),
559 .types = rtnl_route_metrics_types,
560 };
561
562 static const NLType rtnl_route_types[] = {
563 [RTA_DST] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
564 [RTA_SRC] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
565 [RTA_IIF] = { .type = NETLINK_TYPE_U32 },
566 [RTA_OIF] = { .type = NETLINK_TYPE_U32 },
567 [RTA_GATEWAY] = { .type = NETLINK_TYPE_IN_ADDR },
568 [RTA_PRIORITY] = { .type = NETLINK_TYPE_U32 },
569 [RTA_PREFSRC] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
570 [RTA_METRICS] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_metrics_type_system},
571 /* [RTA_MULTIPATH] = { .len = sizeof(struct rtnexthop) },
572 */
573 [RTA_FLOW] = { .type = NETLINK_TYPE_U32 }, /* 6? */
574 /*
575 RTA_CACHEINFO,
576 RTA_TABLE,
577 RTA_MARK,
578 RTA_MFC_STATS,
579 RTA_VIA,
580 RTA_NEWDST,
581 */
582 [RTA_PREF] = { .type = NETLINK_TYPE_U8 },
583
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 type_system_root = {
667 .count = ELEMENTSOF(rtnl_types),
668 .types = rtnl_types,
669 };
670
671 uint16_t type_get_type(const NLType *type) {
672 assert(type);
673 return type->type;
674 }
675
676 size_t type_get_size(const NLType *type) {
677 assert(type);
678 return type->size;
679 }
680
681 void type_get_type_system(const NLType *nl_type, const NLTypeSystem **ret) {
682 assert(nl_type);
683 assert(ret);
684 assert(nl_type->type == NETLINK_TYPE_NESTED);
685 assert(nl_type->type_system);
686
687 *ret = nl_type->type_system;
688 }
689
690 void type_get_type_system_union(const NLType *nl_type, const NLTypeSystemUnion **ret) {
691 assert(nl_type);
692 assert(ret);
693 assert(nl_type->type == NETLINK_TYPE_UNION);
694 assert(nl_type->type_system_union);
695
696 *ret = nl_type->type_system_union;
697 }
698
699 uint16_t type_system_get_count(const NLTypeSystem *type_system) {
700 assert(type_system);
701 return type_system->count;
702 }
703
704 int type_system_get_type(const NLTypeSystem *type_system, const NLType **ret, uint16_t type) {
705 const NLType *nl_type;
706
707 assert(ret);
708 assert(type_system);
709 assert(type_system->types);
710
711 if (type >= type_system->count)
712 return -EOPNOTSUPP;
713
714 nl_type = &type_system->types[type];
715
716 if (nl_type->type == NETLINK_TYPE_UNSPEC)
717 return -EOPNOTSUPP;
718
719 *ret = nl_type;
720
721 return 0;
722 }
723
724 int type_system_get_type_system(const NLTypeSystem *type_system, const NLTypeSystem **ret, uint16_t type) {
725 const NLType *nl_type;
726 int r;
727
728 assert(ret);
729
730 r = type_system_get_type(type_system, &nl_type, type);
731 if (r < 0)
732 return r;
733
734 type_get_type_system(nl_type, ret);
735 return 0;
736 }
737
738 int type_system_get_type_system_union(const NLTypeSystem *type_system, const NLTypeSystemUnion **ret, uint16_t type) {
739 const NLType *nl_type;
740 int r;
741
742 assert(ret);
743
744 r = type_system_get_type(type_system, &nl_type, type);
745 if (r < 0)
746 return r;
747
748 type_get_type_system_union(nl_type, ret);
749 return 0;
750 }
751
752 int type_system_union_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, const char *key) {
753 int type;
754
755 assert(type_system_union);
756 assert(type_system_union->match_type == NL_MATCH_SIBLING);
757 assert(type_system_union->lookup);
758 assert(type_system_union->type_systems);
759 assert(ret);
760 assert(key);
761
762 type = type_system_union->lookup(key);
763 if (type < 0)
764 return -EOPNOTSUPP;
765
766 assert(type < type_system_union->num);
767
768 *ret = &type_system_union->type_systems[type];
769
770 return 0;
771 }
772
773 int type_system_union_protocol_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, uint16_t protocol) {
774 const NLTypeSystem *type_system;
775
776 assert(type_system_union);
777 assert(type_system_union->type_systems);
778 assert(type_system_union->match_type == NL_MATCH_PROTOCOL);
779 assert(ret);
780
781 if (protocol >= type_system_union->num)
782 return -EOPNOTSUPP;
783
784 type_system = &type_system_union->type_systems[protocol];
785 if (!type_system->types)
786 return -EOPNOTSUPP;
787
788 *ret = type_system;
789
790 return 0;
791 }
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