]> git.ipfire.org Git - thirdparty/systemd.git/blob - src/libsystemd/sd-netlink/netlink-types.c
projects / thirdparty / systemd.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
networkd: allow to configure default/initial send/recv congestion window and store...
[thirdparty/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 [IFLA_IPVLAN_FLAGS] = { .type = NETLINK_TYPE_U16 },
106 };
107
108 static const NLType rtnl_link_info_data_macvlan_types[] = {
109 [IFLA_MACVLAN_MODE] = { .type = NETLINK_TYPE_U32 },
110 [IFLA_MACVLAN_FLAGS] = { .type = NETLINK_TYPE_U16 },
111 };
112
113 static const NLType rtnl_link_info_data_bridge_types[] = {
114 [IFLA_BR_FORWARD_DELAY] = { .type = NETLINK_TYPE_U32 },
115 [IFLA_BR_HELLO_TIME] = { .type = NETLINK_TYPE_U32 },
116 [IFLA_BR_MAX_AGE] = { .type = NETLINK_TYPE_U32 },
117 [IFLA_BR_AGEING_TIME] = { .type = NETLINK_TYPE_U32 },
118 [IFLA_BR_STP_STATE] = { .type = NETLINK_TYPE_U32 },
119 [IFLA_BR_PRIORITY] = { .type = NETLINK_TYPE_U16 },
120 [IFLA_BR_VLAN_FILTERING] = { .type = NETLINK_TYPE_U8 },
121 [IFLA_BR_VLAN_PROTOCOL] = { .type = NETLINK_TYPE_U16 },
122 [IFLA_BR_GROUP_FWD_MASK] = { .type = NETLINK_TYPE_U16 },
123 [IFLA_BR_ROOT_PORT] = { .type = NETLINK_TYPE_U16 },
124 [IFLA_BR_ROOT_PATH_COST] = { .type = NETLINK_TYPE_U32 },
125 [IFLA_BR_TOPOLOGY_CHANGE] = { .type = NETLINK_TYPE_U8 },
126 [IFLA_BR_TOPOLOGY_CHANGE_DETECTED] = { .type = NETLINK_TYPE_U8 },
127 [IFLA_BR_HELLO_TIMER] = { .type = NETLINK_TYPE_U16 },
128 [IFLA_BR_TCN_TIMER] = { .type = NETLINK_TYPE_U16 },
129 [IFLA_BR_TOPOLOGY_CHANGE_TIMER] = { .type = NETLINK_TYPE_U16 },
130 [IFLA_BR_GC_TIMER] = { .type = NETLINK_TYPE_U64 },
131 [IFLA_BR_GROUP_ADDR] = { .type = NETLINK_TYPE_U16 },
132 [IFLA_BR_FDB_FLUSH] = { .type = NETLINK_TYPE_U16 },
133 [IFLA_BR_MCAST_ROUTER] = { .type = NETLINK_TYPE_U8 },
134 [IFLA_BR_MCAST_SNOOPING] = { .type = NETLINK_TYPE_U8 },
135 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NETLINK_TYPE_U8 },
136 [IFLA_BR_MCAST_QUERIER] = { .type = NETLINK_TYPE_U8 },
137 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NETLINK_TYPE_U32 },
138 [IFLA_BR_MCAST_HASH_MAX] = { .type = NETLINK_TYPE_U16 },
139 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NETLINK_TYPE_U32 },
140 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NETLINK_TYPE_U16 },
141 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NETLINK_TYPE_U64 },
142 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NETLINK_TYPE_U64 },
143 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NETLINK_TYPE_U64 },
144 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NETLINK_TYPE_U64 },
145 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NETLINK_TYPE_U64 },
146 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NETLINK_TYPE_U64 },
147 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NETLINK_TYPE_U8 },
148 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NETLINK_TYPE_U8 },
149 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NETLINK_TYPE_U8 },
150 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NETLINK_TYPE_U16 },
151 };
152
153 static const NLType rtnl_link_info_data_vlan_types[] = {
154 [IFLA_VLAN_ID] = { .type = NETLINK_TYPE_U16 },
155 /*
156 [IFLA_VLAN_FLAGS] = { .len = sizeof(struct ifla_vlan_flags) },
157 [IFLA_VLAN_EGRESS_QOS] = { .type = NETLINK_TYPE_NESTED },
158 [IFLA_VLAN_INGRESS_QOS] = { .type = NETLINK_TYPE_NESTED },
159 */
160 [IFLA_VLAN_PROTOCOL] = { .type = NETLINK_TYPE_U16 },
161 };
162
163 static const NLType rtnl_link_info_data_vxlan_types[] = {
164 [IFLA_VXLAN_ID] = { .type = NETLINK_TYPE_U32 },
165 [IFLA_VXLAN_GROUP] = { .type = NETLINK_TYPE_IN_ADDR },
166 [IFLA_VXLAN_LINK] = { .type = NETLINK_TYPE_U32 },
167 [IFLA_VXLAN_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
168 [IFLA_VXLAN_TTL] = { .type = NETLINK_TYPE_U8 },
169 [IFLA_VXLAN_TOS] = { .type = NETLINK_TYPE_U8 },
170 [IFLA_VXLAN_LEARNING] = { .type = NETLINK_TYPE_U8 },
171 [IFLA_VXLAN_AGEING] = { .type = NETLINK_TYPE_U32 },
172 [IFLA_VXLAN_LIMIT] = { .type = NETLINK_TYPE_U32 },
173 [IFLA_VXLAN_PORT_RANGE] = { .type = NETLINK_TYPE_U32},
174 [IFLA_VXLAN_PROXY] = { .type = NETLINK_TYPE_U8 },
175 [IFLA_VXLAN_RSC] = { .type = NETLINK_TYPE_U8 },
176 [IFLA_VXLAN_L2MISS] = { .type = NETLINK_TYPE_U8 },
177 [IFLA_VXLAN_L3MISS] = { .type = NETLINK_TYPE_U8 },
178 [IFLA_VXLAN_PORT] = { .type = NETLINK_TYPE_U16 },
179 [IFLA_VXLAN_GROUP6] = { .type = NETLINK_TYPE_IN_ADDR },
180 [IFLA_VXLAN_LOCAL6] = { .type = NETLINK_TYPE_IN_ADDR },
181 [IFLA_VXLAN_UDP_CSUM] = { .type = NETLINK_TYPE_U8 },
182 [IFLA_VXLAN_UDP_ZERO_CSUM6_TX] = { .type = NETLINK_TYPE_U8 },
183 [IFLA_VXLAN_UDP_ZERO_CSUM6_RX] = { .type = NETLINK_TYPE_U8 },
184 [IFLA_VXLAN_REMCSUM_TX] = { .type = NETLINK_TYPE_U8 },
185 [IFLA_VXLAN_REMCSUM_RX] = { .type = NETLINK_TYPE_U8 },
186 [IFLA_VXLAN_GBP] = { .type = NETLINK_TYPE_FLAG },
187 [IFLA_VXLAN_REMCSUM_NOPARTIAL] = { .type = NETLINK_TYPE_FLAG },
188 [IFLA_VXLAN_COLLECT_METADATA] = { .type = NETLINK_TYPE_U8 },
189 [IFLA_VXLAN_LABEL] = { .type = NETLINK_TYPE_U32 },
190 [IFLA_VXLAN_GPE] = { .type = NETLINK_TYPE_FLAG },
191 };
192
193 static const NLType rtnl_bond_arp_target_types[] = {
194 [BOND_ARP_TARGETS_0] = { .type = NETLINK_TYPE_U32 },
195 [BOND_ARP_TARGETS_1] = { .type = NETLINK_TYPE_U32 },
196 [BOND_ARP_TARGETS_2] = { .type = NETLINK_TYPE_U32 },
197 [BOND_ARP_TARGETS_3] = { .type = NETLINK_TYPE_U32 },
198 [BOND_ARP_TARGETS_4] = { .type = NETLINK_TYPE_U32 },
199 [BOND_ARP_TARGETS_5] = { .type = NETLINK_TYPE_U32 },
200 [BOND_ARP_TARGETS_6] = { .type = NETLINK_TYPE_U32 },
201 [BOND_ARP_TARGETS_7] = { .type = NETLINK_TYPE_U32 },
202 [BOND_ARP_TARGETS_8] = { .type = NETLINK_TYPE_U32 },
203 [BOND_ARP_TARGETS_9] = { .type = NETLINK_TYPE_U32 },
204 [BOND_ARP_TARGETS_10] = { .type = NETLINK_TYPE_U32 },
205 [BOND_ARP_TARGETS_11] = { .type = NETLINK_TYPE_U32 },
206 [BOND_ARP_TARGETS_12] = { .type = NETLINK_TYPE_U32 },
207 [BOND_ARP_TARGETS_13] = { .type = NETLINK_TYPE_U32 },
208 [BOND_ARP_TARGETS_14] = { .type = NETLINK_TYPE_U32 },
209 [BOND_ARP_TARGETS_MAX] = { .type = NETLINK_TYPE_U32 },
210 };
211
212 static const NLTypeSystem rtnl_bond_arp_type_system = {
213 .count = ELEMENTSOF(rtnl_bond_arp_target_types),
214 .types = rtnl_bond_arp_target_types,
215 };
216
217 static const NLType rtnl_link_info_data_bond_types[] = {
218 [IFLA_BOND_MODE] = { .type = NETLINK_TYPE_U8 },
219 [IFLA_BOND_ACTIVE_SLAVE] = { .type = NETLINK_TYPE_U32 },
220 [IFLA_BOND_MIIMON] = { .type = NETLINK_TYPE_U32 },
221 [IFLA_BOND_UPDELAY] = { .type = NETLINK_TYPE_U32 },
222 [IFLA_BOND_DOWNDELAY] = { .type = NETLINK_TYPE_U32 },
223 [IFLA_BOND_USE_CARRIER] = { .type = NETLINK_TYPE_U8 },
224 [IFLA_BOND_ARP_INTERVAL] = { .type = NETLINK_TYPE_U32 },
225 [IFLA_BOND_ARP_IP_TARGET] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_bond_arp_type_system },
226 [IFLA_BOND_ARP_VALIDATE] = { .type = NETLINK_TYPE_U32 },
227 [IFLA_BOND_ARP_ALL_TARGETS] = { .type = NETLINK_TYPE_U32 },
228 [IFLA_BOND_PRIMARY] = { .type = NETLINK_TYPE_U32 },
229 [IFLA_BOND_PRIMARY_RESELECT] = { .type = NETLINK_TYPE_U8 },
230 [IFLA_BOND_FAIL_OVER_MAC] = { .type = NETLINK_TYPE_U8 },
231 [IFLA_BOND_XMIT_HASH_POLICY] = { .type = NETLINK_TYPE_U8 },
232 [IFLA_BOND_RESEND_IGMP] = { .type = NETLINK_TYPE_U32 },
233 [IFLA_BOND_NUM_PEER_NOTIF] = { .type = NETLINK_TYPE_U8 },
234 [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NETLINK_TYPE_U8 },
235 [IFLA_BOND_MIN_LINKS] = { .type = NETLINK_TYPE_U32 },
236 [IFLA_BOND_LP_INTERVAL] = { .type = NETLINK_TYPE_U32 },
237 [IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NETLINK_TYPE_U32 },
238 [IFLA_BOND_AD_LACP_RATE] = { .type = NETLINK_TYPE_U8 },
239 [IFLA_BOND_AD_SELECT] = { .type = NETLINK_TYPE_U8 },
240 [IFLA_BOND_AD_INFO] = { .type = NETLINK_TYPE_NESTED },
241 };
242
243 static const NLType rtnl_link_info_data_iptun_types[] = {
244 [IFLA_IPTUN_LINK] = { .type = NETLINK_TYPE_U32 },
245 [IFLA_IPTUN_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
246 [IFLA_IPTUN_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
247 [IFLA_IPTUN_TTL] = { .type = NETLINK_TYPE_U8 },
248 [IFLA_IPTUN_TOS] = { .type = NETLINK_TYPE_U8 },
249 [IFLA_IPTUN_PMTUDISC] = { .type = NETLINK_TYPE_U8 },
250 [IFLA_IPTUN_FLAGS] = { .type = NETLINK_TYPE_U16 },
251 [IFLA_IPTUN_PROTO] = { .type = NETLINK_TYPE_U8 },
252 [IFLA_IPTUN_6RD_PREFIX] = { .type = NETLINK_TYPE_IN_ADDR },
253 [IFLA_IPTUN_6RD_RELAY_PREFIX] = { .type = NETLINK_TYPE_U32 },
254 [IFLA_IPTUN_6RD_PREFIXLEN] = { .type = NETLINK_TYPE_U16 },
255 [IFLA_IPTUN_6RD_RELAY_PREFIXLEN] = { .type = NETLINK_TYPE_U16 },
256 [IFLA_IPTUN_ENCAP_TYPE] = { .type = NETLINK_TYPE_U16 },
257 [IFLA_IPTUN_ENCAP_FLAGS] = { .type = NETLINK_TYPE_U16 },
258 [IFLA_IPTUN_ENCAP_SPORT] = { .type = NETLINK_TYPE_U16 },
259 [IFLA_IPTUN_ENCAP_DPORT] = { .type = NETLINK_TYPE_U16 },
260 };
261
262 static const NLType rtnl_link_info_data_ipgre_types[] = {
263 [IFLA_GRE_LINK] = { .type = NETLINK_TYPE_U32 },
264 [IFLA_GRE_IFLAGS] = { .type = NETLINK_TYPE_U16 },
265 [IFLA_GRE_OFLAGS] = { .type = NETLINK_TYPE_U16 },
266 [IFLA_GRE_IKEY] = { .type = NETLINK_TYPE_U32 },
267 [IFLA_GRE_OKEY] = { .type = NETLINK_TYPE_U32 },
268 [IFLA_GRE_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
269 [IFLA_GRE_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
270 [IFLA_GRE_TTL] = { .type = NETLINK_TYPE_U8 },
271 [IFLA_GRE_TOS] = { .type = NETLINK_TYPE_U8 },
272 [IFLA_GRE_PMTUDISC] = { .type = NETLINK_TYPE_U8 },
273 [IFLA_GRE_FLOWINFO] = { .type = NETLINK_TYPE_U32 },
274 [IFLA_GRE_FLAGS] = { .type = NETLINK_TYPE_U32 },
275 [IFLA_GRE_ENCAP_TYPE] = { .type = NETLINK_TYPE_U16 },
276 [IFLA_GRE_ENCAP_FLAGS] = { .type = NETLINK_TYPE_U16 },
277 [IFLA_GRE_ENCAP_SPORT] = { .type = NETLINK_TYPE_U16 },
278 [IFLA_GRE_ENCAP_DPORT] = { .type = NETLINK_TYPE_U16 },
279 };
280
281 static const NLType rtnl_link_info_data_ipvti_types[] = {
282 [IFLA_VTI_LINK] = { .type = NETLINK_TYPE_U32 },
283 [IFLA_VTI_IKEY] = { .type = NETLINK_TYPE_U32 },
284 [IFLA_VTI_OKEY] = { .type = NETLINK_TYPE_U32 },
285 [IFLA_VTI_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
286 [IFLA_VTI_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
287 };
288
289 static const NLType rtnl_link_info_data_ip6tnl_types[] = {
290 [IFLA_IPTUN_LINK] = { .type = NETLINK_TYPE_U32 },
291 [IFLA_IPTUN_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
292 [IFLA_IPTUN_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
293 [IFLA_IPTUN_TTL] = { .type = NETLINK_TYPE_U8 },
294 [IFLA_IPTUN_FLAGS] = { .type = NETLINK_TYPE_U32 },
295 [IFLA_IPTUN_PROTO] = { .type = NETLINK_TYPE_U8 },
296 [IFLA_IPTUN_ENCAP_LIMIT] = { .type = NETLINK_TYPE_U8 },
297 [IFLA_IPTUN_FLOWINFO] = { .type = NETLINK_TYPE_U32 },
298 };
299
300 static const NLType rtnl_link_info_data_vrf_types[] = {
301 [IFLA_VRF_TABLE] = { .type = NETLINK_TYPE_U32 },
302 };
303
304 static const NLType rtnl_link_info_data_geneve_types[] = {
305 [IFLA_GENEVE_ID] = { .type = NETLINK_TYPE_U32 },
306 [IFLA_GENEVE_TTL] = { .type = NETLINK_TYPE_U8 },
307 [IFLA_GENEVE_TOS] = { .type = NETLINK_TYPE_U8 },
308 [IFLA_GENEVE_PORT] = { .type = NETLINK_TYPE_U16 },
309 [IFLA_GENEVE_REMOTE] = { .type = NETLINK_TYPE_IN_ADDR },
310 [IFLA_GENEVE_REMOTE6] = { .type = NETLINK_TYPE_IN_ADDR },
311 [IFLA_GENEVE_UDP_CSUM] = { .type = NETLINK_TYPE_U8 },
312 [IFLA_GENEVE_UDP_ZERO_CSUM6_TX] = { .type = NETLINK_TYPE_U8 },
313 [IFLA_GENEVE_UDP_ZERO_CSUM6_RX] = { .type = NETLINK_TYPE_U8 },
314 [IFLA_GENEVE_LABEL] = { .type = NETLINK_TYPE_U32 },
315 };
316
317 /* these strings must match the .kind entries in the kernel */
318 static const char* const nl_union_link_info_data_table[] = {
319 [NL_UNION_LINK_INFO_DATA_BOND] = "bond",
320 [NL_UNION_LINK_INFO_DATA_BRIDGE] = "bridge",
321 [NL_UNION_LINK_INFO_DATA_VLAN] = "vlan",
322 [NL_UNION_LINK_INFO_DATA_VETH] = "veth",
323 [NL_UNION_LINK_INFO_DATA_DUMMY] = "dummy",
324 [NL_UNION_LINK_INFO_DATA_MACVLAN] = "macvlan",
325 [NL_UNION_LINK_INFO_DATA_MACVTAP] = "macvtap",
326 [NL_UNION_LINK_INFO_DATA_IPVLAN] = "ipvlan",
327 [NL_UNION_LINK_INFO_DATA_VXLAN] = "vxlan",
328 [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = "ipip",
329 [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = "gre",
330 [NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = "gretap",
331 [NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = "ip6gre",
332 [NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = "ip6gretap",
333 [NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = "sit",
334 [NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = "vti",
335 [NL_UNION_LINK_INFO_DATA_VTI6_TUNNEL] = "vti6",
336 [NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = "ip6tnl",
337 [NL_UNION_LINK_INFO_DATA_VRF] = "vrf",
338 [NL_UNION_LINK_INFO_DATA_VCAN] = "vcan",
339 [NL_UNION_LINK_INFO_DATA_GENEVE] = "geneve",
340 [NL_UNION_LINK_INFO_DATA_VXCAN] = "vxcan",
341
342 };
343
344 DEFINE_STRING_TABLE_LOOKUP(nl_union_link_info_data, NLUnionLinkInfoData);
345
346 static const NLTypeSystem rtnl_link_info_data_type_systems[] = {
347 [NL_UNION_LINK_INFO_DATA_BOND] = { .count = ELEMENTSOF(rtnl_link_info_data_bond_types),
348 .types = rtnl_link_info_data_bond_types },
349 [NL_UNION_LINK_INFO_DATA_BRIDGE] = { .count = ELEMENTSOF(rtnl_link_info_data_bridge_types),
350 .types = rtnl_link_info_data_bridge_types },
351 [NL_UNION_LINK_INFO_DATA_VLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vlan_types),
352 .types = rtnl_link_info_data_vlan_types },
353 [NL_UNION_LINK_INFO_DATA_VETH] = { .count = ELEMENTSOF(rtnl_link_info_data_veth_types),
354 .types = rtnl_link_info_data_veth_types },
355 [NL_UNION_LINK_INFO_DATA_MACVLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_macvlan_types),
356 .types = rtnl_link_info_data_macvlan_types },
357 [NL_UNION_LINK_INFO_DATA_MACVTAP] = { .count = ELEMENTSOF(rtnl_link_info_data_macvlan_types),
358 .types = rtnl_link_info_data_macvlan_types },
359 [NL_UNION_LINK_INFO_DATA_IPVLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvlan_types),
360 .types = rtnl_link_info_data_ipvlan_types },
361 [NL_UNION_LINK_INFO_DATA_VXLAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vxlan_types),
362 .types = rtnl_link_info_data_vxlan_types },
363 [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_iptun_types),
364 .types = rtnl_link_info_data_iptun_types },
365 [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
366 .types = rtnl_link_info_data_ipgre_types },
367 [NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
368 .types = rtnl_link_info_data_ipgre_types },
369 [NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
370 .types = rtnl_link_info_data_ipgre_types },
371 [NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipgre_types),
372 .types = rtnl_link_info_data_ipgre_types },
373 [NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_iptun_types),
374 .types = rtnl_link_info_data_iptun_types },
375 [NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvti_types),
376 .types = rtnl_link_info_data_ipvti_types },
377 [NL_UNION_LINK_INFO_DATA_VTI6_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ipvti_types),
378 .types = rtnl_link_info_data_ipvti_types },
379 [NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = { .count = ELEMENTSOF(rtnl_link_info_data_ip6tnl_types),
380 .types = rtnl_link_info_data_ip6tnl_types },
381 [NL_UNION_LINK_INFO_DATA_VRF] = { .count = ELEMENTSOF(rtnl_link_info_data_vrf_types),
382 .types = rtnl_link_info_data_vrf_types },
383 [NL_UNION_LINK_INFO_DATA_GENEVE] = { .count = ELEMENTSOF(rtnl_link_info_data_geneve_types),
384 .types = rtnl_link_info_data_geneve_types },
385 [NL_UNION_LINK_INFO_DATA_VXCAN] = { .count = ELEMENTSOF(rtnl_link_info_data_vxcan_types),
386 .types = rtnl_link_info_data_vxcan_types },
387 };
388
389 static const NLTypeSystemUnion rtnl_link_info_data_type_system_union = {
390 .num = _NL_UNION_LINK_INFO_DATA_MAX,
391 .lookup = nl_union_link_info_data_from_string,
392 .type_systems = rtnl_link_info_data_type_systems,
393 .match_type = NL_MATCH_SIBLING,
394 .match = IFLA_INFO_KIND,
395 };
396
397 static const NLType rtnl_link_info_types[] = {
398 [IFLA_INFO_KIND] = { .type = NETLINK_TYPE_STRING },
399 [IFLA_INFO_DATA] = { .type = NETLINK_TYPE_UNION, .type_system_union = &rtnl_link_info_data_type_system_union},
400 /*
401 [IFLA_INFO_XSTATS],
402 [IFLA_INFO_SLAVE_KIND] = { .type = NETLINK_TYPE_STRING },
403 [IFLA_INFO_SLAVE_DATA] = { .type = NETLINK_TYPE_NESTED },
404 */
405 };
406
407 static const NLTypeSystem rtnl_link_info_type_system = {
408 .count = ELEMENTSOF(rtnl_link_info_types),
409 .types = rtnl_link_info_types,
410 };
411
412 static const struct NLType rtnl_prot_info_bridge_port_types[] = {
413 [IFLA_BRPORT_STATE] = { .type = NETLINK_TYPE_U8 },
414 [IFLA_BRPORT_COST] = { .type = NETLINK_TYPE_U32 },
415 [IFLA_BRPORT_PRIORITY] = { .type = NETLINK_TYPE_U16 },
416 [IFLA_BRPORT_MODE] = { .type = NETLINK_TYPE_U8 },
417 [IFLA_BRPORT_GUARD] = { .type = NETLINK_TYPE_U8 },
418 [IFLA_BRPORT_PROTECT] = { .type = NETLINK_TYPE_U8 },
419 [IFLA_BRPORT_FAST_LEAVE] = { .type = NETLINK_TYPE_U8 },
420 [IFLA_BRPORT_LEARNING] = { .type = NETLINK_TYPE_U8 },
421 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NETLINK_TYPE_U8 },
422 [IFLA_BRPORT_PROXYARP] = { .type = NETLINK_TYPE_U8 },
423 [IFLA_BRPORT_LEARNING_SYNC] = { .type = NETLINK_TYPE_U8 },
424 };
425
426 static const NLTypeSystem rtnl_prot_info_type_systems[] = {
427 [AF_BRIDGE] = { .count = ELEMENTSOF(rtnl_prot_info_bridge_port_types),
428 .types = rtnl_prot_info_bridge_port_types },
429 };
430
431 static const NLTypeSystemUnion rtnl_prot_info_type_system_union = {
432 .num = AF_MAX,
433 .type_systems = rtnl_prot_info_type_systems,
434 .match_type = NL_MATCH_PROTOCOL,
435 };
436
437 static const struct NLType rtnl_af_spec_inet6_types[] = {
438 [IFLA_INET6_FLAGS] = { .type = NETLINK_TYPE_U32 },
439 /*
440 IFLA_INET6_CONF,
441 IFLA_INET6_STATS,
442 IFLA_INET6_MCAST,
443 IFLA_INET6_CACHEINFO,
444 IFLA_INET6_ICMP6STATS,
445 */
446 [IFLA_INET6_TOKEN] = { .type = NETLINK_TYPE_IN_ADDR },
447 [IFLA_INET6_ADDR_GEN_MODE] = { .type = NETLINK_TYPE_U8 },
448 };
449
450 static const NLTypeSystem rtnl_af_spec_inet6_type_system = {
451 .count = ELEMENTSOF(rtnl_af_spec_inet6_types),
452 .types = rtnl_af_spec_inet6_types,
453 };
454
455 static const NLType rtnl_af_spec_types[] = {
456 [AF_INET6] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_af_spec_inet6_type_system },
457 };
458
459 static const NLTypeSystem rtnl_af_spec_type_system = {
460 .count = ELEMENTSOF(rtnl_af_spec_types),
461 .types = rtnl_af_spec_types,
462 };
463
464 static const NLType rtnl_link_types[] = {
465 [IFLA_ADDRESS] = { .type = NETLINK_TYPE_ETHER_ADDR },
466 [IFLA_BROADCAST] = { .type = NETLINK_TYPE_ETHER_ADDR },
467 [IFLA_IFNAME] = { .type = NETLINK_TYPE_STRING, .size = IFNAMSIZ - 1 },
468 [IFLA_MTU] = { .type = NETLINK_TYPE_U32 },
469 [IFLA_LINK] = { .type = NETLINK_TYPE_U32 },
470 /*
471 [IFLA_QDISC],
472 [IFLA_STATS],
473 [IFLA_COST],
474 [IFLA_PRIORITY],
475 */
476 [IFLA_MASTER] = { .type = NETLINK_TYPE_U32 },
477 /*
478 [IFLA_WIRELESS],
479 */
480 [IFLA_PROTINFO] = { .type = NETLINK_TYPE_UNION, .type_system_union = &rtnl_prot_info_type_system_union },
481 [IFLA_TXQLEN] = { .type = NETLINK_TYPE_U32 },
482 /*
483 [IFLA_MAP] = { .len = sizeof(struct rtnl_link_ifmap) },
484 */
485 [IFLA_WEIGHT] = { .type = NETLINK_TYPE_U32 },
486 [IFLA_OPERSTATE] = { .type = NETLINK_TYPE_U8 },
487 [IFLA_LINKMODE] = { .type = NETLINK_TYPE_U8 },
488 [IFLA_LINKINFO] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_info_type_system },
489 [IFLA_NET_NS_PID] = { .type = NETLINK_TYPE_U32 },
490 [IFLA_IFALIAS] = { .type = NETLINK_TYPE_STRING, .size = IFALIASZ - 1 },
491 /*
492 [IFLA_NUM_VF],
493 [IFLA_VFINFO_LIST] = {. type = NETLINK_TYPE_NESTED, },
494 [IFLA_STATS64],
495 [IFLA_VF_PORTS] = { .type = NETLINK_TYPE_NESTED },
496 [IFLA_PORT_SELF] = { .type = NETLINK_TYPE_NESTED },
497 */
498 [IFLA_AF_SPEC] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_af_spec_type_system },
499 /*
500 [IFLA_VF_PORTS],
501 [IFLA_PORT_SELF],
502 [IFLA_AF_SPEC],
503 */
504 [IFLA_GROUP] = { .type = NETLINK_TYPE_U32 },
505 [IFLA_NET_NS_FD] = { .type = NETLINK_TYPE_U32 },
506 [IFLA_EXT_MASK] = { .type = NETLINK_TYPE_U32 },
507 [IFLA_PROMISCUITY] = { .type = NETLINK_TYPE_U32 },
508 [IFLA_NUM_TX_QUEUES] = { .type = NETLINK_TYPE_U32 },
509 [IFLA_NUM_RX_QUEUES] = { .type = NETLINK_TYPE_U32 },
510 [IFLA_CARRIER] = { .type = NETLINK_TYPE_U8 },
511 /*
512 [IFLA_PHYS_PORT_ID] = { .type = NETLINK_TYPE_BINARY, .len = MAX_PHYS_PORT_ID_LEN },
513 */
514 };
515
516 static const NLTypeSystem rtnl_link_type_system = {
517 .count = ELEMENTSOF(rtnl_link_types),
518 .types = rtnl_link_types,
519 };
520
521 /* IFA_FLAGS was defined in kernel 3.14, but we still support older
522 * kernels where IFA_MAX is lower. */
523 static const NLType rtnl_address_types[] = {
524 [IFA_ADDRESS] = { .type = NETLINK_TYPE_IN_ADDR },
525 [IFA_LOCAL] = { .type = NETLINK_TYPE_IN_ADDR },
526 [IFA_LABEL] = { .type = NETLINK_TYPE_STRING, .size = IFNAMSIZ - 1 },
527 [IFA_BROADCAST] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
528 [IFA_CACHEINFO] = { .type = NETLINK_TYPE_CACHE_INFO, .size = sizeof(struct ifa_cacheinfo) },
529 /*
530 [IFA_ANYCAST],
531 [IFA_MULTICAST],
532 */
533 [IFA_FLAGS] = { .type = NETLINK_TYPE_U32 },
534 };
535
536 static const NLTypeSystem rtnl_address_type_system = {
537 .count = ELEMENTSOF(rtnl_address_types),
538 .types = rtnl_address_types,
539 };
540
541 /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */
542
543 static const NLType rtnl_route_metrics_types[] = {
544 [RTAX_MTU] = { .type = NETLINK_TYPE_U32 },
545 [RTAX_WINDOW] = { .type = NETLINK_TYPE_U32 },
546 [RTAX_RTT] = { .type = NETLINK_TYPE_U32 },
547 [RTAX_RTTVAR] = { .type = NETLINK_TYPE_U32 },
548 [RTAX_SSTHRESH] = { .type = NETLINK_TYPE_U32 },
549 [RTAX_CWND] = { .type = NETLINK_TYPE_U32 },
550 [RTAX_ADVMSS] = { .type = NETLINK_TYPE_U32 },
551 [RTAX_REORDERING] = { .type = NETLINK_TYPE_U32 },
552 [RTAX_HOPLIMIT] = { .type = NETLINK_TYPE_U32 },
553 [RTAX_INITCWND] = { .type = NETLINK_TYPE_U32 },
554 [RTAX_FEATURES] = { .type = NETLINK_TYPE_U32 },
555 [RTAX_RTO_MIN] = { .type = NETLINK_TYPE_U32 },
556 [RTAX_INITRWND] = { .type = NETLINK_TYPE_U32 },
557 };
558
559 static const NLTypeSystem rtnl_route_metrics_type_system = {
560 .count = ELEMENTSOF(rtnl_route_metrics_types),
561 .types = rtnl_route_metrics_types,
562 };
563
564 static const NLType rtnl_route_types[] = {
565 [RTA_DST] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
566 [RTA_SRC] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
567 [RTA_IIF] = { .type = NETLINK_TYPE_U32 },
568 [RTA_OIF] = { .type = NETLINK_TYPE_U32 },
569 [RTA_GATEWAY] = { .type = NETLINK_TYPE_IN_ADDR },
570 [RTA_PRIORITY] = { .type = NETLINK_TYPE_U32 },
571 [RTA_PREFSRC] = { .type = NETLINK_TYPE_IN_ADDR }, /* 6? */
572 [RTA_METRICS] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_metrics_type_system},
573 /* [RTA_MULTIPATH] = { .len = sizeof(struct rtnexthop) },
574 */
575 [RTA_FLOW] = { .type = NETLINK_TYPE_U32 }, /* 6? */
576 /*
577 RTA_CACHEINFO,
578 RTA_TABLE,
579 RTA_MARK,
580 RTA_MFC_STATS,
581 RTA_VIA,
582 RTA_NEWDST,
583 */
584 [RTA_PREF] = { .type = NETLINK_TYPE_U8 },
585
586 };
587
588 static const NLTypeSystem rtnl_route_type_system = {
589 .count = ELEMENTSOF(rtnl_route_types),
590 .types = rtnl_route_types,
591 };
592
593 static const NLType rtnl_neigh_types[] = {
594 [NDA_DST] = { .type = NETLINK_TYPE_IN_ADDR },
595 [NDA_LLADDR] = { .type = NETLINK_TYPE_ETHER_ADDR },
596 [NDA_CACHEINFO] = { .type = NETLINK_TYPE_CACHE_INFO, .size = sizeof(struct nda_cacheinfo) },
597 [NDA_PROBES] = { .type = NETLINK_TYPE_U32 },
598 [NDA_VLAN] = { .type = NETLINK_TYPE_U16 },
599 [NDA_PORT] = { .type = NETLINK_TYPE_U16 },
600 [NDA_VNI] = { .type = NETLINK_TYPE_U32 },
601 [NDA_IFINDEX] = { .type = NETLINK_TYPE_U32 },
602 };
603
604 static const NLTypeSystem rtnl_neigh_type_system = {
605 .count = ELEMENTSOF(rtnl_neigh_types),
606 .types = rtnl_neigh_types,
607 };
608
609 static const NLType rtnl_addrlabel_types[] = {
610 [IFAL_ADDRESS] = { .type = NETLINK_TYPE_IN_ADDR, .size = sizeof(struct in6_addr) },
611 [IFAL_LABEL] = { .type = NETLINK_TYPE_U32 },
612 };
613
614 static const NLTypeSystem rtnl_addrlabel_type_system = {
615 .count = ELEMENTSOF(rtnl_addrlabel_types),
616 .types = rtnl_addrlabel_types,
617 };
618
619 static const NLType rtnl_routing_policy_rule_types[] = {
620 [FRA_DST] = { .type = NETLINK_TYPE_IN_ADDR },
621 [FRA_SRC] = { .type = NETLINK_TYPE_IN_ADDR },
622 [FRA_IIFNAME] = { .type = NETLINK_TYPE_STRING },
623 [RTA_OIF] = { .type = NETLINK_TYPE_U32 },
624 [RTA_GATEWAY] = { .type = NETLINK_TYPE_IN_ADDR },
625 [FRA_PRIORITY] = { .type = NETLINK_TYPE_U32 },
626 [FRA_FWMARK] = { .type = NETLINK_TYPE_U32 },
627 [FRA_FLOW] = { .type = NETLINK_TYPE_U32 },
628 [FRA_TUN_ID] = { .type = NETLINK_TYPE_U32 },
629 [FRA_SUPPRESS_IFGROUP] = { .type = NETLINK_TYPE_U32 },
630 [FRA_SUPPRESS_PREFIXLEN] = { .type = NETLINK_TYPE_U32 },
631 [FRA_TABLE] = { .type = NETLINK_TYPE_U32 },
632 [FRA_FWMASK] = { .type = NETLINK_TYPE_U32 },
633 [FRA_OIFNAME] = { .type = NETLINK_TYPE_STRING },
634 [FRA_PAD] = { .type = NETLINK_TYPE_U32 },
635 [FRA_L3MDEV] = { .type = NETLINK_TYPE_U64 },
636 [FRA_UID_RANGE] = { .size = sizeof(struct fib_rule_uid_range) },
637 };
638
639 static const NLTypeSystem rtnl_routing_policy_rule_type_system = {
640 .count = ELEMENTSOF(rtnl_routing_policy_rule_types),
641 .types = rtnl_routing_policy_rule_types,
642 };
643
644 static const NLType rtnl_types[] = {
645 [NLMSG_DONE] = { .type = NETLINK_TYPE_NESTED, .type_system = &empty_type_system, .size = 0 },
646 [NLMSG_ERROR] = { .type = NETLINK_TYPE_NESTED, .type_system = &empty_type_system, .size = sizeof(struct nlmsgerr) },
647 [RTM_NEWLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
648 [RTM_DELLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
649 [RTM_GETLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
650 [RTM_SETLINK] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
651 [RTM_NEWADDR] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
652 [RTM_DELADDR] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
653 [RTM_GETADDR] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
654 [RTM_NEWROUTE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
655 [RTM_DELROUTE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
656 [RTM_GETROUTE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
657 [RTM_NEWNEIGH] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
658 [RTM_DELNEIGH] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
659 [RTM_GETNEIGH] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
660 [RTM_NEWADDRLABEL] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_addrlabel_type_system, .size = sizeof(struct ifaddrlblmsg) },
661 [RTM_DELADDRLABEL] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_addrlabel_type_system, .size = sizeof(struct ifaddrlblmsg) },
662 [RTM_GETADDRLABEL] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_addrlabel_type_system, .size = sizeof(struct ifaddrlblmsg) },
663 [RTM_NEWRULE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_routing_policy_rule_type_system, .size = sizeof(struct rtmsg) },
664 [RTM_DELRULE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_routing_policy_rule_type_system, .size = sizeof(struct rtmsg) },
665 [RTM_GETRULE] = { .type = NETLINK_TYPE_NESTED, .type_system = &rtnl_routing_policy_rule_type_system, .size = sizeof(struct rtmsg) },
666 };
667
668 const NLTypeSystem type_system_root = {
669 .count = ELEMENTSOF(rtnl_types),
670 .types = rtnl_types,
671 };
672
673 uint16_t type_get_type(const NLType *type) {
674 assert(type);
675 return type->type;
676 }
677
678 size_t type_get_size(const NLType *type) {
679 assert(type);
680 return type->size;
681 }
682
683 void type_get_type_system(const NLType *nl_type, const NLTypeSystem **ret) {
684 assert(nl_type);
685 assert(ret);
686 assert(nl_type->type == NETLINK_TYPE_NESTED);
687 assert(nl_type->type_system);
688
689 *ret = nl_type->type_system;
690 }
691
692 void type_get_type_system_union(const NLType *nl_type, const NLTypeSystemUnion **ret) {
693 assert(nl_type);
694 assert(ret);
695 assert(nl_type->type == NETLINK_TYPE_UNION);
696 assert(nl_type->type_system_union);
697
698 *ret = nl_type->type_system_union;
699 }
700
701 uint16_t type_system_get_count(const NLTypeSystem *type_system) {
702 assert(type_system);
703 return type_system->count;
704 }
705
706 int type_system_get_type(const NLTypeSystem *type_system, const NLType **ret, uint16_t type) {
707 const NLType *nl_type;
708
709 assert(ret);
710 assert(type_system);
711 assert(type_system->types);
712
713 if (type >= type_system->count)
714 return -EOPNOTSUPP;
715
716 nl_type = &type_system->types[type];
717
718 if (nl_type->type == NETLINK_TYPE_UNSPEC)
719 return -EOPNOTSUPP;
720
721 *ret = nl_type;
722
723 return 0;
724 }
725
726 int type_system_get_type_system(const NLTypeSystem *type_system, const NLTypeSystem **ret, uint16_t type) {
727 const NLType *nl_type;
728 int r;
729
730 assert(ret);
731
732 r = type_system_get_type(type_system, &nl_type, type);
733 if (r < 0)
734 return r;
735
736 type_get_type_system(nl_type, ret);
737 return 0;
738 }
739
740 int type_system_get_type_system_union(const NLTypeSystem *type_system, const NLTypeSystemUnion **ret, uint16_t type) {
741 const NLType *nl_type;
742 int r;
743
744 assert(ret);
745
746 r = type_system_get_type(type_system, &nl_type, type);
747 if (r < 0)
748 return r;
749
750 type_get_type_system_union(nl_type, ret);
751 return 0;
752 }
753
754 int type_system_union_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, const char *key) {
755 int type;
756
757 assert(type_system_union);
758 assert(type_system_union->match_type == NL_MATCH_SIBLING);
759 assert(type_system_union->lookup);
760 assert(type_system_union->type_systems);
761 assert(ret);
762 assert(key);
763
764 type = type_system_union->lookup(key);
765 if (type < 0)
766 return -EOPNOTSUPP;
767
768 assert(type < type_system_union->num);
769
770 *ret = &type_system_union->type_systems[type];
771
772 return 0;
773 }
774
775 int type_system_union_protocol_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, uint16_t protocol) {
776 const NLTypeSystem *type_system;
777
778 assert(type_system_union);
779 assert(type_system_union->type_systems);
780 assert(type_system_union->match_type == NL_MATCH_PROTOCOL);
781 assert(ret);
782
783 if (protocol >= type_system_union->num)
784 return -EOPNOTSUPP;
785
786 type_system = &type_system_union->type_systems[protocol];
787 if (!type_system->types)
788 return -EOPNOTSUPP;
789
790 *ret = type_system;
791
792 return 0;
793 }
Unnamed repository; edit this file 'description' to name the repository.