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