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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 | ||
31 | /* For input/output buffer to zebra. */ | |
32 | #define ZEBRA_MAX_PACKET_SIZ 4096 | |
33 | ||
34 | /* Zebra header size. */ | |
c1b9800a | 35 | #define ZEBRA_HEADER_SIZE 6 |
718e3744 | 36 | |
7c8ff89e DS |
37 | struct redist_proto |
38 | { | |
39 | u_char enabled; | |
40 | struct list *instances; | |
41 | }; | |
42 | ||
718e3744 | 43 | /* Structure for the zebra client. */ |
44 | struct zclient | |
45 | { | |
46 | /* Socket to zebra daemon. */ | |
47 | int sock; | |
48 | ||
49 | /* Flag of communication to zebra is enabled or not. Default is on. | |
50 | This flag is disabled by `no router zebra' statement. */ | |
51 | int enable; | |
52 | ||
53 | /* Connection failure count. */ | |
54 | int fail; | |
55 | ||
56 | /* Input buffer for zebra message. */ | |
57 | struct stream *ibuf; | |
58 | ||
59 | /* Output buffer for zebra message. */ | |
60 | struct stream *obuf; | |
61 | ||
634f9ea2 | 62 | /* Buffer of data waiting to be written to zebra. */ |
63 | struct buffer *wb; | |
64 | ||
718e3744 | 65 | /* Read and connect thread. */ |
66 | struct thread *t_read; | |
67 | struct thread *t_connect; | |
68 | ||
634f9ea2 | 69 | /* Thread to write buffered data to zebra. */ |
70 | struct thread *t_write; | |
71 | ||
718e3744 | 72 | /* Redistribute information. */ |
7c8ff89e DS |
73 | u_char redist_default; /* clients protocol */ |
74 | u_short instance; | |
75 | struct redist_proto redist[ZEBRA_ROUTE_MAX]; | |
718e3744 | 76 | |
77 | /* Redistribute defauilt. */ | |
78 | u_char default_information; | |
79 | ||
80 | /* Pointer to the callback functions. */ | |
c1b9800a | 81 | int (*router_id_update) (int, struct zclient *, uint16_t); |
82 | int (*interface_add) (int, struct zclient *, uint16_t); | |
83 | int (*interface_delete) (int, struct zclient *, uint16_t); | |
84 | int (*interface_up) (int, struct zclient *, uint16_t); | |
85 | int (*interface_down) (int, struct zclient *, uint16_t); | |
86 | int (*interface_address_add) (int, struct zclient *, uint16_t); | |
87 | int (*interface_address_delete) (int, struct zclient *, uint16_t); | |
d5a5c8f0 | 88 | int (*interface_bfd_dest_down) (int, struct zclient *, uint16_t); |
a80beece DS |
89 | int (*interface_nbr_address_add) (int, struct zclient *, uint16_t); |
90 | int (*interface_nbr_address_delete) (int, struct zclient *, uint16_t); | |
c1b9800a | 91 | int (*ipv4_route_add) (int, struct zclient *, uint16_t); |
92 | int (*ipv4_route_delete) (int, struct zclient *, uint16_t); | |
93 | int (*ipv6_route_add) (int, struct zclient *, uint16_t); | |
94 | int (*ipv6_route_delete) (int, struct zclient *, uint16_t); | |
fb018d25 | 95 | int (*nexthop_update) (int, struct zclient *, uint16_t); |
718e3744 | 96 | }; |
97 | ||
98 | /* Zebra API message flag. */ | |
99 | #define ZAPI_MESSAGE_NEXTHOP 0x01 | |
100 | #define ZAPI_MESSAGE_IFINDEX 0x02 | |
101 | #define ZAPI_MESSAGE_DISTANCE 0x04 | |
102 | #define ZAPI_MESSAGE_METRIC 0x08 | |
c8a1cb5c DS |
103 | #define ZAPI_MESSAGE_TAG 0x10 |
104 | #define ZAPI_MESSAGE_ONLINK 0x20 | |
718e3744 | 105 | |
c1b9800a | 106 | /* Zserv protocol message header */ |
107 | struct zserv_header | |
108 | { | |
109 | uint16_t length; | |
110 | uint8_t marker; /* corresponds to command field in old zserv | |
111 | * always set to 255 in new zserv. | |
112 | */ | |
113 | uint8_t version; | |
8d79efdd | 114 | #define ZSERV_VERSION 2 |
c1b9800a | 115 | uint16_t command; |
116 | }; | |
117 | ||
718e3744 | 118 | /* Zebra IPv4 route message API. */ |
119 | struct zapi_ipv4 | |
120 | { | |
121 | u_char type; | |
7c8ff89e | 122 | u_short instance; |
718e3744 | 123 | |
124 | u_char flags; | |
125 | ||
126 | u_char message; | |
127 | ||
5a616c08 B |
128 | safi_t safi; |
129 | ||
718e3744 | 130 | u_char nexthop_num; |
131 | struct in_addr **nexthop; | |
132 | ||
133 | u_char ifindex_num; | |
134 | unsigned int *ifindex; | |
135 | ||
136 | u_char distance; | |
137 | ||
138 | u_int32_t metric; | |
0d9551dc DS |
139 | |
140 | u_short tag; | |
718e3744 | 141 | }; |
142 | ||
718e3744 | 143 | /* Prototypes of zebra client service functions. */ |
8cc4198f | 144 | extern struct zclient *zclient_new (void); |
7c8ff89e | 145 | extern void zclient_init (struct zclient *, int, u_short); |
8cc4198f | 146 | extern int zclient_start (struct zclient *); |
147 | extern void zclient_stop (struct zclient *); | |
148 | extern void zclient_reset (struct zclient *); | |
228da428 | 149 | extern void zclient_free (struct zclient *); |
634f9ea2 | 150 | |
b5114685 VT |
151 | extern int zclient_socket_connect (struct zclient *); |
152 | extern void zclient_serv_path_set (char *path); | |
718e3744 | 153 | |
7c8ff89e DS |
154 | extern int redist_check_instance (struct redist_proto *, u_short); |
155 | extern void redist_add_instance (struct redist_proto *, u_short); | |
156 | extern void redist_del_instance (struct redist_proto *, u_short); | |
157 | ||
634f9ea2 | 158 | /* Send redistribute command to zebra daemon. Do not update zclient state. */ |
7c8ff89e | 159 | extern int zebra_redistribute_send (int command, struct zclient *, int type, u_short instance); |
634f9ea2 | 160 | |
161 | /* If state has changed, update state and call zebra_redistribute_send. */ | |
7c8ff89e DS |
162 | extern void zclient_redistribute (int command, struct zclient *, int type, |
163 | u_short instance); | |
634f9ea2 | 164 | |
165 | /* If state has changed, update state and send the command to zebra. */ | |
8cc4198f | 166 | extern void zclient_redistribute_default (int command, struct zclient *); |
718e3744 | 167 | |
634f9ea2 | 168 | /* Send the message in zclient->obuf to the zebra daemon (or enqueue it). |
169 | Returns 0 for success or -1 on an I/O error. */ | |
170 | extern int zclient_send_message(struct zclient *); | |
718e3744 | 171 | |
d211086a | 172 | /* create header for command, length to be filled in by user later */ |
173 | extern void zclient_create_header (struct stream *, uint16_t); | |
174 | ||
8cc4198f | 175 | extern struct interface *zebra_interface_add_read (struct stream *); |
176 | extern struct interface *zebra_interface_state_read (struct stream *s); | |
177 | extern struct connected *zebra_interface_address_read (int, struct stream *); | |
d5a5c8f0 | 178 | extern struct interface *zebra_interface_bfd_read (struct stream *s, struct prefix *); |
a80beece | 179 | extern struct nbr_connected *zebra_interface_nbr_address_read (int, struct stream *); |
8cc4198f | 180 | extern void zebra_interface_if_set_value (struct stream *, struct interface *); |
181 | extern void zebra_router_id_update_read (struct stream *s, struct prefix *rid); | |
182 | extern int zapi_ipv4_route (u_char, struct zclient *, struct prefix_ipv4 *, | |
183 | struct zapi_ipv4 *); | |
718e3744 | 184 | |
185 | #ifdef HAVE_IPV6 | |
186 | /* IPv6 prefix add and delete function prototype. */ | |
187 | ||
188 | struct zapi_ipv6 | |
189 | { | |
190 | u_char type; | |
7c8ff89e | 191 | u_short instance; |
718e3744 | 192 | |
193 | u_char flags; | |
194 | ||
195 | u_char message; | |
196 | ||
c7ec179a B |
197 | safi_t safi; |
198 | ||
718e3744 | 199 | u_char nexthop_num; |
200 | struct in6_addr **nexthop; | |
201 | ||
202 | u_char ifindex_num; | |
203 | unsigned int *ifindex; | |
204 | ||
205 | u_char distance; | |
206 | ||
207 | u_int32_t metric; | |
0d9551dc DS |
208 | |
209 | u_short tag; | |
718e3744 | 210 | }; |
211 | ||
8cc4198f | 212 | extern int zapi_ipv6_route (u_char cmd, struct zclient *zclient, |
0a589359 | 213 | struct prefix_ipv6 *p, struct zapi_ipv6 *api); |
718e3744 | 214 | #endif /* HAVE_IPV6 */ |
215 | ||
216 | #endif /* _ZEBRA_ZCLIENT_H */ |