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718e3744 | 1 | /* Zebra's client header. |
2 | * Copyright (C) 1999 Kunihiro Ishiguro | |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2, or (at your option) | |
9 | * any later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with GNU Zebra; see the file COPYING. If not, write to the | |
18 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | * Boston, MA 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | #ifndef _ZEBRA_ZCLIENT_H | |
23 | #define _ZEBRA_ZCLIENT_H | |
24 | ||
5734509c PJ |
25 | /* For struct zapi_ipv{4,6}. */ |
26 | #include "prefix.h" | |
27 | ||
718e3744 | 28 | /* For struct interface and struct connected. */ |
29 | #include "if.h" | |
30 | ||
7076bb2f FL |
31 | /* For vrf_bitmap_t. */ |
32 | #include "vrf.h" | |
33 | ||
718e3744 | 34 | /* For input/output buffer to zebra. */ |
35 | #define ZEBRA_MAX_PACKET_SIZ 4096 | |
36 | ||
37 | /* Zebra header size. */ | |
7076bb2f | 38 | #define ZEBRA_HEADER_SIZE 8 |
718e3744 | 39 | |
8613585e DS |
40 | /* Zebra message types. */ |
41 | typedef enum { | |
42 | ZEBRA_INTERFACE_ADD, | |
43 | ZEBRA_INTERFACE_DELETE, | |
44 | ZEBRA_INTERFACE_ADDRESS_ADD, | |
45 | ZEBRA_INTERFACE_ADDRESS_DELETE, | |
46 | ZEBRA_INTERFACE_UP, | |
47 | ZEBRA_INTERFACE_DOWN, | |
48 | ZEBRA_IPV4_ROUTE_ADD, | |
49 | ZEBRA_IPV4_ROUTE_DELETE, | |
50 | ZEBRA_IPV6_ROUTE_ADD, | |
51 | ZEBRA_IPV6_ROUTE_DELETE, | |
52 | ZEBRA_REDISTRIBUTE_ADD, | |
53 | ZEBRA_REDISTRIBUTE_DELETE, | |
54 | ZEBRA_REDISTRIBUTE_DEFAULT_ADD, | |
55 | ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, | |
56 | ZEBRA_ROUTER_ID_ADD, | |
57 | ZEBRA_ROUTER_ID_DELETE, | |
58 | ZEBRA_ROUTER_ID_UPDATE, | |
59 | ZEBRA_HELLO, | |
60 | ZEBRA_NEXTHOP_REGISTER, | |
61 | ZEBRA_NEXTHOP_UNREGISTER, | |
62 | ZEBRA_NEXTHOP_UPDATE, | |
63 | ZEBRA_INTERFACE_NBR_ADDRESS_ADD, | |
64 | ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, | |
65 | ZEBRA_INTERFACE_BFD_DEST_UPDATE, | |
66 | ZEBRA_IMPORT_ROUTE_REGISTER, | |
67 | ZEBRA_IMPORT_ROUTE_UNREGISTER, | |
68 | ZEBRA_IMPORT_CHECK_UPDATE, | |
69 | ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD, | |
70 | ZEBRA_BFD_DEST_REGISTER, | |
71 | ZEBRA_BFD_DEST_DEREGISTER, | |
72 | ZEBRA_BFD_DEST_UPDATE, | |
73 | ZEBRA_BFD_DEST_REPLAY, | |
74 | ZEBRA_REDISTRIBUTE_IPV4_ADD, | |
75 | ZEBRA_REDISTRIBUTE_IPV4_DEL, | |
76 | ZEBRA_REDISTRIBUTE_IPV6_ADD, | |
77 | ZEBRA_REDISTRIBUTE_IPV6_DEL, | |
78 | ZEBRA_VRF_UNREGISTER, | |
79 | ZEBRA_VRF_ADD, | |
80 | ZEBRA_VRF_DELETE, | |
81 | ZEBRA_INTERFACE_VRF_UPDATE, | |
82 | ZEBRA_BFD_CLIENT_REGISTER, | |
83 | ZEBRA_INTERFACE_ENABLE_RADV, | |
84 | ZEBRA_INTERFACE_DISABLE_RADV, | |
85 | ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, | |
86 | ZEBRA_INTERFACE_LINK_PARAMS, | |
87 | ZEBRA_MPLS_LABELS_ADD, | |
88 | ZEBRA_MPLS_LABELS_DELETE, | |
89 | ZEBRA_IPV4_NEXTHOP_ADD, | |
90 | ZEBRA_IPV4_NEXTHOP_DELETE, | |
91 | ZEBRA_IPV6_NEXTHOP_ADD, | |
92 | ZEBRA_IPV6_NEXTHOP_DELETE, | |
93 | ZEBRA_IPMR_ROUTE_STATS, | |
94 | } zebra_message_types_t; | |
95 | ||
7c8ff89e DS |
96 | struct redist_proto |
97 | { | |
98 | u_char enabled; | |
99 | struct list *instances; | |
100 | }; | |
101 | ||
718e3744 | 102 | /* Structure for the zebra client. */ |
103 | struct zclient | |
104 | { | |
4140ca4d DS |
105 | /* The thread master we schedule ourselves on */ |
106 | struct thread_master *master; | |
107 | ||
718e3744 | 108 | /* Socket to zebra daemon. */ |
109 | int sock; | |
110 | ||
111 | /* Flag of communication to zebra is enabled or not. Default is on. | |
112 | This flag is disabled by `no router zebra' statement. */ | |
113 | int enable; | |
114 | ||
115 | /* Connection failure count. */ | |
116 | int fail; | |
117 | ||
118 | /* Input buffer for zebra message. */ | |
119 | struct stream *ibuf; | |
120 | ||
121 | /* Output buffer for zebra message. */ | |
122 | struct stream *obuf; | |
123 | ||
634f9ea2 | 124 | /* Buffer of data waiting to be written to zebra. */ |
125 | struct buffer *wb; | |
126 | ||
718e3744 | 127 | /* Read and connect thread. */ |
128 | struct thread *t_read; | |
129 | struct thread *t_connect; | |
130 | ||
634f9ea2 | 131 | /* Thread to write buffered data to zebra. */ |
132 | struct thread *t_write; | |
133 | ||
718e3744 | 134 | /* Redistribute information. */ |
7c8ff89e DS |
135 | u_char redist_default; /* clients protocol */ |
136 | u_short instance; | |
7076bb2f FL |
137 | struct redist_proto mi_redist[AFI_MAX][ZEBRA_ROUTE_MAX]; |
138 | vrf_bitmap_t redist[AFI_MAX][ZEBRA_ROUTE_MAX]; | |
718e3744 | 139 | |
140 | /* Redistribute defauilt. */ | |
7076bb2f | 141 | vrf_bitmap_t default_information; |
718e3744 | 142 | |
143 | /* Pointer to the callback functions. */ | |
7076bb2f FL |
144 | void (*zebra_connected) (struct zclient *); |
145 | int (*router_id_update) (int, struct zclient *, uint16_t, vrf_id_t); | |
146 | int (*interface_add) (int, struct zclient *, uint16_t, vrf_id_t); | |
147 | int (*interface_delete) (int, struct zclient *, uint16_t, vrf_id_t); | |
148 | int (*interface_up) (int, struct zclient *, uint16_t, vrf_id_t); | |
149 | int (*interface_down) (int, struct zclient *, uint16_t, vrf_id_t); | |
150 | int (*interface_address_add) (int, struct zclient *, uint16_t, vrf_id_t); | |
151 | int (*interface_address_delete) (int, struct zclient *, uint16_t, vrf_id_t); | |
16f1b9ee | 152 | int (*interface_link_params) (int, struct zclient *, uint16_t); |
7076bb2f FL |
153 | int (*interface_bfd_dest_update) (int, struct zclient *, uint16_t, vrf_id_t); |
154 | int (*interface_nbr_address_add) (int, struct zclient *, uint16_t, vrf_id_t); | |
155 | int (*interface_nbr_address_delete) (int, struct zclient *, uint16_t, vrf_id_t); | |
c8e264b6 | 156 | int (*interface_vrf_update) (int, struct zclient *, uint16_t, vrf_id_t); |
7076bb2f FL |
157 | int (*nexthop_update) (int, struct zclient *, uint16_t, vrf_id_t); |
158 | int (*import_check_update) (int, struct zclient *, uint16_t, vrf_id_t); | |
159 | int (*bfd_dest_replay) (int, struct zclient *, uint16_t, vrf_id_t); | |
160 | int (*redistribute_route_ipv4_add) (int, struct zclient *, uint16_t, vrf_id_t); | |
161 | int (*redistribute_route_ipv4_del) (int, struct zclient *, uint16_t, vrf_id_t); | |
162 | int (*redistribute_route_ipv6_add) (int, struct zclient *, uint16_t, vrf_id_t); | |
163 | int (*redistribute_route_ipv6_del) (int, struct zclient *, uint16_t, vrf_id_t); | |
718e3744 | 164 | }; |
165 | ||
166 | /* Zebra API message flag. */ | |
167 | #define ZAPI_MESSAGE_NEXTHOP 0x01 | |
168 | #define ZAPI_MESSAGE_IFINDEX 0x02 | |
169 | #define ZAPI_MESSAGE_DISTANCE 0x04 | |
170 | #define ZAPI_MESSAGE_METRIC 0x08 | |
c8a1cb5c | 171 | #define ZAPI_MESSAGE_TAG 0x10 |
c50ca33a | 172 | #define ZAPI_MESSAGE_MTU 0x20 |
3c7c91d0 | 173 | #define ZAPI_MESSAGE_SRCPFX 0x40 |
718e3744 | 174 | |
c1b9800a | 175 | /* Zserv protocol message header */ |
176 | struct zserv_header | |
177 | { | |
178 | uint16_t length; | |
179 | uint8_t marker; /* corresponds to command field in old zserv | |
180 | * always set to 255 in new zserv. | |
181 | */ | |
182 | uint8_t version; | |
80e71dcd | 183 | #define ZSERV_VERSION 4 |
7076bb2f | 184 | vrf_id_t vrf_id; |
c1b9800a | 185 | uint16_t command; |
186 | }; | |
187 | ||
718e3744 | 188 | /* Zebra IPv4 route message API. */ |
189 | struct zapi_ipv4 | |
190 | { | |
191 | u_char type; | |
7c8ff89e | 192 | u_short instance; |
718e3744 | 193 | |
0fc452dc | 194 | u_int32_t flags; |
718e3744 | 195 | |
196 | u_char message; | |
197 | ||
5a616c08 B |
198 | safi_t safi; |
199 | ||
718e3744 | 200 | u_char nexthop_num; |
201 | struct in_addr **nexthop; | |
202 | ||
203 | u_char ifindex_num; | |
b892f1dd | 204 | ifindex_t *ifindex; |
718e3744 | 205 | |
206 | u_char distance; | |
207 | ||
208 | u_int32_t metric; | |
0d9551dc | 209 | |
dc9ffce8 | 210 | route_tag_t tag; |
7076bb2f | 211 | |
c50ca33a TT |
212 | u_int32_t mtu; |
213 | ||
7076bb2f | 214 | vrf_id_t vrf_id; |
718e3744 | 215 | }; |
216 | ||
718e3744 | 217 | /* Prototypes of zebra client service functions. */ |
4140ca4d | 218 | extern struct zclient *zclient_new (struct thread_master *); |
7c8ff89e | 219 | extern void zclient_init (struct zclient *, int, u_short); |
8cc4198f | 220 | extern int zclient_start (struct zclient *); |
221 | extern void zclient_stop (struct zclient *); | |
222 | extern void zclient_reset (struct zclient *); | |
228da428 | 223 | extern void zclient_free (struct zclient *); |
634f9ea2 | 224 | |
b5114685 VT |
225 | extern int zclient_socket_connect (struct zclient *); |
226 | extern void zclient_serv_path_set (char *path); | |
744f4685 | 227 | extern const char *zclient_serv_path_get (void); |
718e3744 | 228 | |
43e7c3b4 | 229 | extern u_short *redist_check_instance (struct redist_proto *, u_short); |
7c8ff89e DS |
230 | extern void redist_add_instance (struct redist_proto *, u_short); |
231 | extern void redist_del_instance (struct redist_proto *, u_short); | |
232 | ||
0e5223e7 | 233 | extern void zclient_send_reg_requests (struct zclient *, vrf_id_t); |
234 | extern void zclient_send_dereg_requests (struct zclient *, vrf_id_t); | |
7076bb2f | 235 | |
4a04e5f7 | 236 | extern void zclient_send_interface_radv_req (struct zclient *zclient, vrf_id_t vrf_id, |
5c81b96a | 237 | struct interface *ifp, int enable, int ra_interval); |
4a04e5f7 | 238 | |
634f9ea2 | 239 | /* Send redistribute command to zebra daemon. Do not update zclient state. */ |
7076bb2f | 240 | extern int zebra_redistribute_send (int command, struct zclient *, afi_t, int type, u_short instance, vrf_id_t vrf_id); |
634f9ea2 | 241 | |
242 | /* If state has changed, update state and call zebra_redistribute_send. */ | |
8bb0831e | 243 | extern void zclient_redistribute (int command, struct zclient *, afi_t, int type, |
7076bb2f | 244 | u_short instance, vrf_id_t vrf_id); |
634f9ea2 | 245 | |
246 | /* If state has changed, update state and send the command to zebra. */ | |
7076bb2f FL |
247 | extern void zclient_redistribute_default (int command, struct zclient *, |
248 | vrf_id_t vrf_id); | |
718e3744 | 249 | |
634f9ea2 | 250 | /* Send the message in zclient->obuf to the zebra daemon (or enqueue it). |
251 | Returns 0 for success or -1 on an I/O error. */ | |
252 | extern int zclient_send_message(struct zclient *); | |
718e3744 | 253 | |
d211086a | 254 | /* create header for command, length to be filled in by user later */ |
7076bb2f | 255 | extern void zclient_create_header (struct stream *, uint16_t, vrf_id_t); |
55119089 ND |
256 | extern int zclient_read_header (struct stream *s, int sock, u_int16_t *size, |
257 | u_char *marker, u_char *version, | |
e7a2870b | 258 | vrf_id_t *vrf_id, u_int16_t *cmd); |
d211086a | 259 | |
7076bb2f FL |
260 | extern struct interface *zebra_interface_add_read (struct stream *, vrf_id_t); |
261 | extern struct interface *zebra_interface_state_read (struct stream *s, vrf_id_t); | |
262 | extern struct connected *zebra_interface_address_read (int, struct stream *, vrf_id_t); | |
263 | extern struct nbr_connected *zebra_interface_nbr_address_read (int, struct stream *, vrf_id_t); | |
c8e264b6 | 264 | extern struct interface * zebra_interface_vrf_update_read (struct stream *s, vrf_id_t vrf_id, |
265 | vrf_id_t *new_vrf_id); | |
8cc4198f | 266 | extern void zebra_interface_if_set_value (struct stream *, struct interface *); |
267 | extern void zebra_router_id_update_read (struct stream *s, struct prefix *rid); | |
268 | extern int zapi_ipv4_route (u_char, struct zclient *, struct prefix_ipv4 *, | |
269 | struct zapi_ipv4 *); | |
718e3744 | 270 | |
16f1b9ee OD |
271 | extern struct interface *zebra_interface_link_params_read (struct stream *); |
272 | extern size_t zebra_interface_link_params_write (struct stream *, | |
273 | struct interface *); | |
718e3744 | 274 | /* IPv6 prefix add and delete function prototype. */ |
275 | ||
276 | struct zapi_ipv6 | |
277 | { | |
278 | u_char type; | |
7c8ff89e | 279 | u_short instance; |
718e3744 | 280 | |
0fc452dc | 281 | u_int32_t flags; |
718e3744 | 282 | |
283 | u_char message; | |
284 | ||
c7ec179a B |
285 | safi_t safi; |
286 | ||
718e3744 | 287 | u_char nexthop_num; |
288 | struct in6_addr **nexthop; | |
289 | ||
290 | u_char ifindex_num; | |
b892f1dd | 291 | ifindex_t *ifindex; |
718e3744 | 292 | |
293 | u_char distance; | |
294 | ||
295 | u_int32_t metric; | |
0d9551dc | 296 | |
dc9ffce8 | 297 | route_tag_t tag; |
7076bb2f | 298 | |
c50ca33a TT |
299 | u_int32_t mtu; |
300 | ||
7076bb2f | 301 | vrf_id_t vrf_id; |
718e3744 | 302 | }; |
303 | ||
8cc4198f | 304 | extern int zapi_ipv6_route (u_char cmd, struct zclient *zclient, |
d75f3b00 DL |
305 | struct prefix_ipv6 *p, struct prefix_ipv6 *src_p, |
306 | struct zapi_ipv6 *api); | |
8a92a8a0 DS |
307 | extern int zapi_ipv4_route_ipv6_nexthop (u_char, struct zclient *, |
308 | struct prefix_ipv4 *, struct zapi_ipv6 *); | |
718e3744 | 309 | |
310 | #endif /* _ZEBRA_ZCLIENT_H */ |