1 /* Zebra's client header.
2 * Copyright (C) 1999 Kunihiro Ishiguro
4 * This file is part of GNU Zebra.
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)
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.
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.
22 #ifndef _ZEBRA_ZCLIENT_H
23 #define _ZEBRA_ZCLIENT_H
25 /* For struct zapi_ipv{4,6}. */
28 /* For struct interface and struct connected. */
31 /* For vrf_bitmap_t. */
34 /* For input/output buffer to zebra. */
35 #define ZEBRA_MAX_PACKET_SIZ 4096
37 /* Zebra header size. */
38 #define ZEBRA_HEADER_SIZE 8
40 /* Structure for the zebra client. */
43 /* The thread master we schedule ourselves on */
44 struct thread_master *master;
46 /* Socket to zebra daemon. */
49 /* Flag of communication to zebra is enabled or not. Default is on.
50 This flag is disabled by `no router zebra' statement. */
53 /* Connection failure count. */
56 /* Input buffer for zebra message. */
59 /* Output buffer for zebra message. */
62 /* Buffer of data waiting to be written to zebra. */
65 /* Read and connect thread. */
66 struct thread *t_read;
67 struct thread *t_connect;
69 /* Thread to write buffered data to zebra. */
70 struct thread *t_write;
72 /* Redistribute information. */
73 u_char redist_default;
74 vrf_bitmap_t redist[ZEBRA_ROUTE_MAX];
76 /* Redistribute defauilt. */
77 vrf_bitmap_t default_information;
79 /* Pointer to the callback functions. */
80 void (*zebra_connected) (struct zclient *);
81 int (*router_id_update) (int, struct zclient *, uint16_t, vrf_id_t);
82 int (*interface_add) (int, struct zclient *, uint16_t, vrf_id_t);
83 int (*interface_delete) (int, struct zclient *, uint16_t, vrf_id_t);
84 int (*interface_up) (int, struct zclient *, uint16_t, vrf_id_t);
85 int (*interface_down) (int, struct zclient *, uint16_t, vrf_id_t);
86 int (*interface_address_add) (int, struct zclient *, uint16_t, vrf_id_t);
87 int (*interface_address_delete) (int, struct zclient *, uint16_t, vrf_id_t);
88 int (*interface_link_params) (int, struct zclient *, uint16_t);
89 int (*ipv4_route_add) (int, struct zclient *, uint16_t, vrf_id_t);
90 int (*ipv4_route_delete) (int, struct zclient *, uint16_t, vrf_id_t);
91 int (*ipv6_route_add) (int, struct zclient *, uint16_t, vrf_id_t);
92 int (*ipv6_route_delete) (int, struct zclient *, uint16_t, vrf_id_t);
93 int (*nexthop_update) (int, struct zclient *, uint16_t, vrf_id_t);
96 /* Zebra API message flag. */
97 #define ZAPI_MESSAGE_NEXTHOP 0x01
98 #define ZAPI_MESSAGE_IFINDEX 0x02
99 #define ZAPI_MESSAGE_DISTANCE 0x04
100 #define ZAPI_MESSAGE_METRIC 0x08
101 #define ZAPI_MESSAGE_MTU 0x10
102 #define ZAPI_MESSAGE_TAG 0x20
104 /* Zserv protocol message header */
108 uint8_t marker; /* corresponds to command field in old zserv
109 * always set to 255 in new zserv.
112 #define ZSERV_VERSION 3
117 /* Zebra IPv4 route message API. */
129 struct in_addr **nexthop;
145 /* Prototypes of zebra client service functions. */
146 extern struct zclient *zclient_new (struct thread_master *);
147 extern void zclient_init (struct zclient *, int);
148 extern int zclient_start (struct zclient *);
149 extern void zclient_stop (struct zclient *);
150 extern void zclient_reset (struct zclient *);
151 extern void zclient_free (struct zclient *);
153 extern int zclient_socket_connect (struct zclient *);
154 extern void zclient_serv_path_set (char *path);
155 extern const char *zclient_serv_path_get (void);
157 extern void zclient_send_requests (struct zclient *, vrf_id_t);
159 /* Send redistribute command to zebra daemon. Do not update zclient state. */
160 extern int zebra_redistribute_send (int command, struct zclient *, int type,
163 /* If state has changed, update state and call zebra_redistribute_send. */
164 extern void zclient_redistribute (int command, struct zclient *, int type,
167 /* If state has changed, update state and send the command to zebra. */
168 extern void zclient_redistribute_default (int command, struct zclient *,
171 /* Send the message in zclient->obuf to the zebra daemon (or enqueue it).
172 Returns 0 for success or -1 on an I/O error. */
173 extern int zclient_send_message(struct zclient *);
175 /* create header for command, length to be filled in by user later */
176 extern void zclient_create_header (struct stream *, uint16_t, vrf_id_t);
177 extern int zclient_read_header (struct stream *s, int sock, u_int16_t *size,
178 u_char *marker, u_char *version,
179 u_int16_t *vrf_id, u_int16_t *cmd);
181 extern struct interface *zebra_interface_add_read (struct stream *,
183 extern struct interface *zebra_interface_state_read (struct stream *,
185 extern struct connected *zebra_interface_address_read (int, struct stream *,
187 extern void zebra_interface_if_set_value (struct stream *, struct interface *);
188 extern void zebra_router_id_update_read (struct stream *s, struct prefix *rid);
189 extern int zapi_ipv4_route (u_char, struct zclient *, struct prefix_ipv4 *,
192 extern struct interface *zebra_interface_link_params_read (struct stream *);
193 extern size_t zebra_interface_link_params_write (struct stream *,
196 /* IPv6 prefix add and delete function prototype. */
209 struct in6_addr **nexthop;
225 extern int zapi_ipv6_route (u_char cmd, struct zclient *zclient,
226 struct prefix_ipv6 *p, struct zapi_ipv6 *api);
227 #endif /* HAVE_IPV6 */
229 #endif /* _ZEBRA_ZCLIENT_H */