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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 | |
7c8ff89e DS |
40 | struct redist_proto |
41 | { | |
42 | u_char enabled; | |
43 | struct list *instances; | |
44 | }; | |
45 | ||
718e3744 | 46 | /* Structure for the zebra client. */ |
47 | struct zclient | |
48 | { | |
4140ca4d DS |
49 | /* The thread master we schedule ourselves on */ |
50 | struct thread_master *master; | |
51 | ||
718e3744 | 52 | /* Socket to zebra daemon. */ |
53 | int sock; | |
54 | ||
55 | /* Flag of communication to zebra is enabled or not. Default is on. | |
56 | This flag is disabled by `no router zebra' statement. */ | |
57 | int enable; | |
58 | ||
59 | /* Connection failure count. */ | |
60 | int fail; | |
61 | ||
62 | /* Input buffer for zebra message. */ | |
63 | struct stream *ibuf; | |
64 | ||
65 | /* Output buffer for zebra message. */ | |
66 | struct stream *obuf; | |
67 | ||
634f9ea2 | 68 | /* Buffer of data waiting to be written to zebra. */ |
69 | struct buffer *wb; | |
70 | ||
718e3744 | 71 | /* Read and connect thread. */ |
72 | struct thread *t_read; | |
73 | struct thread *t_connect; | |
74 | ||
634f9ea2 | 75 | /* Thread to write buffered data to zebra. */ |
76 | struct thread *t_write; | |
77 | ||
718e3744 | 78 | /* Redistribute information. */ |
7c8ff89e DS |
79 | u_char redist_default; /* clients protocol */ |
80 | u_short instance; | |
7076bb2f FL |
81 | struct redist_proto mi_redist[AFI_MAX][ZEBRA_ROUTE_MAX]; |
82 | vrf_bitmap_t redist[AFI_MAX][ZEBRA_ROUTE_MAX]; | |
718e3744 | 83 | |
84 | /* Redistribute defauilt. */ | |
7076bb2f | 85 | vrf_bitmap_t default_information; |
718e3744 | 86 | |
87 | /* Pointer to the callback functions. */ | |
7076bb2f FL |
88 | void (*zebra_connected) (struct zclient *); |
89 | int (*router_id_update) (int, struct zclient *, uint16_t, vrf_id_t); | |
90 | int (*interface_add) (int, struct zclient *, uint16_t, vrf_id_t); | |
91 | int (*interface_delete) (int, struct zclient *, uint16_t, vrf_id_t); | |
92 | int (*interface_up) (int, struct zclient *, uint16_t, vrf_id_t); | |
93 | int (*interface_down) (int, struct zclient *, uint16_t, vrf_id_t); | |
94 | int (*interface_address_add) (int, struct zclient *, uint16_t, vrf_id_t); | |
95 | int (*interface_address_delete) (int, struct zclient *, uint16_t, vrf_id_t); | |
96 | int (*interface_bfd_dest_update) (int, struct zclient *, uint16_t, vrf_id_t); | |
97 | int (*interface_nbr_address_add) (int, struct zclient *, uint16_t, vrf_id_t); | |
98 | int (*interface_nbr_address_delete) (int, struct zclient *, uint16_t, vrf_id_t); | |
c8e264b6 | 99 | int (*interface_vrf_update) (int, struct zclient *, uint16_t, vrf_id_t); |
7076bb2f FL |
100 | int (*ipv4_route_add) (int, struct zclient *, uint16_t, vrf_id_t); |
101 | int (*ipv4_route_delete) (int, struct zclient *, uint16_t, vrf_id_t); | |
102 | int (*ipv6_route_add) (int, struct zclient *, uint16_t, vrf_id_t); | |
103 | int (*ipv6_route_delete) (int, struct zclient *, uint16_t, vrf_id_t); | |
104 | int (*nexthop_update) (int, struct zclient *, uint16_t, vrf_id_t); | |
105 | int (*import_check_update) (int, struct zclient *, uint16_t, vrf_id_t); | |
106 | int (*bfd_dest_replay) (int, struct zclient *, uint16_t, vrf_id_t); | |
107 | int (*redistribute_route_ipv4_add) (int, struct zclient *, uint16_t, vrf_id_t); | |
108 | int (*redistribute_route_ipv4_del) (int, struct zclient *, uint16_t, vrf_id_t); | |
109 | int (*redistribute_route_ipv6_add) (int, struct zclient *, uint16_t, vrf_id_t); | |
110 | int (*redistribute_route_ipv6_del) (int, struct zclient *, uint16_t, vrf_id_t); | |
718e3744 | 111 | }; |
112 | ||
113 | /* Zebra API message flag. */ | |
114 | #define ZAPI_MESSAGE_NEXTHOP 0x01 | |
115 | #define ZAPI_MESSAGE_IFINDEX 0x02 | |
116 | #define ZAPI_MESSAGE_DISTANCE 0x04 | |
117 | #define ZAPI_MESSAGE_METRIC 0x08 | |
c8a1cb5c | 118 | #define ZAPI_MESSAGE_TAG 0x10 |
718e3744 | 119 | |
c1b9800a | 120 | /* Zserv protocol message header */ |
121 | struct zserv_header | |
122 | { | |
123 | uint16_t length; | |
124 | uint8_t marker; /* corresponds to command field in old zserv | |
125 | * always set to 255 in new zserv. | |
126 | */ | |
127 | uint8_t version; | |
7076bb2f FL |
128 | #define ZSERV_VERSION 3 |
129 | vrf_id_t vrf_id; | |
c1b9800a | 130 | uint16_t command; |
131 | }; | |
132 | ||
718e3744 | 133 | /* Zebra IPv4 route message API. */ |
134 | struct zapi_ipv4 | |
135 | { | |
136 | u_char type; | |
7c8ff89e | 137 | u_short instance; |
718e3744 | 138 | |
139 | u_char flags; | |
140 | ||
141 | u_char message; | |
142 | ||
5a616c08 B |
143 | safi_t safi; |
144 | ||
718e3744 | 145 | u_char nexthop_num; |
146 | struct in_addr **nexthop; | |
147 | ||
148 | u_char ifindex_num; | |
149 | unsigned int *ifindex; | |
150 | ||
151 | u_char distance; | |
152 | ||
153 | u_int32_t metric; | |
0d9551dc DS |
154 | |
155 | u_short tag; | |
7076bb2f FL |
156 | |
157 | vrf_id_t vrf_id; | |
718e3744 | 158 | }; |
159 | ||
718e3744 | 160 | /* Prototypes of zebra client service functions. */ |
4140ca4d | 161 | extern struct zclient *zclient_new (struct thread_master *); |
7c8ff89e | 162 | extern void zclient_init (struct zclient *, int, u_short); |
8cc4198f | 163 | extern int zclient_start (struct zclient *); |
164 | extern void zclient_stop (struct zclient *); | |
165 | extern void zclient_reset (struct zclient *); | |
228da428 | 166 | extern void zclient_free (struct zclient *); |
634f9ea2 | 167 | |
b5114685 VT |
168 | extern int zclient_socket_connect (struct zclient *); |
169 | extern void zclient_serv_path_set (char *path); | |
718e3744 | 170 | |
7c8ff89e DS |
171 | extern int redist_check_instance (struct redist_proto *, u_short); |
172 | extern void redist_add_instance (struct redist_proto *, u_short); | |
173 | extern void redist_del_instance (struct redist_proto *, u_short); | |
174 | ||
0e5223e7 | 175 | extern void zclient_send_reg_requests (struct zclient *, vrf_id_t); |
176 | extern void zclient_send_dereg_requests (struct zclient *, vrf_id_t); | |
7076bb2f | 177 | |
634f9ea2 | 178 | /* Send redistribute command to zebra daemon. Do not update zclient state. */ |
7076bb2f | 179 | extern int zebra_redistribute_send (int command, struct zclient *, afi_t, int type, u_short instance, vrf_id_t vrf_id); |
634f9ea2 | 180 | |
181 | /* If state has changed, update state and call zebra_redistribute_send. */ | |
8bb0831e | 182 | extern void zclient_redistribute (int command, struct zclient *, afi_t, int type, |
7076bb2f | 183 | u_short instance, vrf_id_t vrf_id); |
634f9ea2 | 184 | |
185 | /* If state has changed, update state and send the command to zebra. */ | |
7076bb2f FL |
186 | extern void zclient_redistribute_default (int command, struct zclient *, |
187 | vrf_id_t vrf_id); | |
718e3744 | 188 | |
634f9ea2 | 189 | /* Send the message in zclient->obuf to the zebra daemon (or enqueue it). |
190 | Returns 0 for success or -1 on an I/O error. */ | |
191 | extern int zclient_send_message(struct zclient *); | |
718e3744 | 192 | |
d211086a | 193 | /* create header for command, length to be filled in by user later */ |
7076bb2f | 194 | extern void zclient_create_header (struct stream *, uint16_t, vrf_id_t); |
d211086a | 195 | |
7076bb2f FL |
196 | extern struct interface *zebra_interface_add_read (struct stream *, vrf_id_t); |
197 | extern struct interface *zebra_interface_state_read (struct stream *s, vrf_id_t); | |
198 | extern struct connected *zebra_interface_address_read (int, struct stream *, vrf_id_t); | |
199 | extern struct nbr_connected *zebra_interface_nbr_address_read (int, struct stream *, vrf_id_t); | |
c8e264b6 | 200 | extern struct interface * zebra_interface_vrf_update_read (struct stream *s, vrf_id_t vrf_id, |
201 | vrf_id_t *new_vrf_id); | |
8cc4198f | 202 | extern void zebra_interface_if_set_value (struct stream *, struct interface *); |
203 | extern void zebra_router_id_update_read (struct stream *s, struct prefix *rid); | |
204 | extern int zapi_ipv4_route (u_char, struct zclient *, struct prefix_ipv4 *, | |
205 | struct zapi_ipv4 *); | |
718e3744 | 206 | |
207 | #ifdef HAVE_IPV6 | |
208 | /* IPv6 prefix add and delete function prototype. */ | |
209 | ||
210 | struct zapi_ipv6 | |
211 | { | |
212 | u_char type; | |
7c8ff89e | 213 | u_short instance; |
718e3744 | 214 | |
215 | u_char flags; | |
216 | ||
217 | u_char message; | |
218 | ||
c7ec179a B |
219 | safi_t safi; |
220 | ||
718e3744 | 221 | u_char nexthop_num; |
222 | struct in6_addr **nexthop; | |
223 | ||
224 | u_char ifindex_num; | |
225 | unsigned int *ifindex; | |
226 | ||
227 | u_char distance; | |
228 | ||
229 | u_int32_t metric; | |
0d9551dc DS |
230 | |
231 | u_short tag; | |
7076bb2f FL |
232 | |
233 | vrf_id_t vrf_id; | |
718e3744 | 234 | }; |
235 | ||
8cc4198f | 236 | extern int zapi_ipv6_route (u_char cmd, struct zclient *zclient, |
0a589359 | 237 | struct prefix_ipv6 *p, struct zapi_ipv6 *api); |
8a92a8a0 DS |
238 | extern int zapi_ipv4_route_ipv6_nexthop (u_char, struct zclient *, |
239 | struct prefix_ipv4 *, struct zapi_ipv6 *); | |
718e3744 | 240 | #endif /* HAVE_IPV6 */ |
241 | ||
242 | #endif /* _ZEBRA_ZCLIENT_H */ |