Annotation of embedaddon/quagga/lib/zclient.h, revision 1.1.1.3
1.1 misho 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:
1.1.1.2 misho 25: /* For struct zapi_ipv{4,6}. */
26: #include "prefix.h"
27:
1.1 misho 28: /* For struct interface and struct connected. */
29: #include "if.h"
30:
1.1.1.3 ! misho 31: /* For vrf_bitmap_t. */
! 32: #include "vrf.h"
! 33:
1.1 misho 34: /* For input/output buffer to zebra. */
35: #define ZEBRA_MAX_PACKET_SIZ 4096
36:
37: /* Zebra header size. */
1.1.1.3 ! misho 38: #define ZEBRA_HEADER_SIZE 8
1.1 misho 39:
40: /* Structure for the zebra client. */
41: struct zclient
42: {
1.1.1.3 ! misho 43: /* The thread master we schedule ourselves on */
! 44: struct thread_master *master;
! 45:
1.1 misho 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:
62: /* Buffer of data waiting to be written to zebra. */
63: struct buffer *wb;
64:
65: /* Read and connect thread. */
66: struct thread *t_read;
67: struct thread *t_connect;
68:
69: /* Thread to write buffered data to zebra. */
70: struct thread *t_write;
71:
72: /* Redistribute information. */
73: u_char redist_default;
1.1.1.3 ! misho 74: vrf_bitmap_t redist[ZEBRA_ROUTE_MAX];
1.1 misho 75:
76: /* Redistribute defauilt. */
1.1.1.3 ! misho 77: vrf_bitmap_t default_information;
1.1 misho 78:
79: /* Pointer to the callback functions. */
1.1.1.3 ! misho 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 (*ipv4_route_add) (int, struct zclient *, uint16_t, vrf_id_t);
! 89: int (*ipv4_route_delete) (int, struct zclient *, uint16_t, vrf_id_t);
! 90: int (*ipv6_route_add) (int, struct zclient *, uint16_t, vrf_id_t);
! 91: int (*ipv6_route_delete) (int, struct zclient *, uint16_t, vrf_id_t);
1.1 misho 92: };
93:
94: /* Zebra API message flag. */
95: #define ZAPI_MESSAGE_NEXTHOP 0x01
96: #define ZAPI_MESSAGE_IFINDEX 0x02
97: #define ZAPI_MESSAGE_DISTANCE 0x04
98: #define ZAPI_MESSAGE_METRIC 0x08
1.1.1.3 ! misho 99: #define ZAPI_MESSAGE_MTU 0x10
1.1 misho 100:
101: /* Zserv protocol message header */
102: struct zserv_header
103: {
104: uint16_t length;
105: uint8_t marker; /* corresponds to command field in old zserv
106: * always set to 255 in new zserv.
107: */
108: uint8_t version;
1.1.1.3 ! misho 109: #define ZSERV_VERSION 3
! 110: vrf_id_t vrf_id;
1.1 misho 111: uint16_t command;
112: };
113:
114: /* Zebra IPv4 route message API. */
115: struct zapi_ipv4
116: {
117: u_char type;
118:
119: u_char flags;
120:
121: u_char message;
122:
1.1.1.2 misho 123: safi_t safi;
124:
1.1 misho 125: u_char nexthop_num;
126: struct in_addr **nexthop;
127:
128: u_char ifindex_num;
1.1.1.3 ! misho 129: ifindex_t *ifindex;
1.1 misho 130:
131: u_char distance;
132:
133: u_int32_t metric;
1.1.1.3 ! misho 134:
! 135: u_int32_t mtu;
! 136:
! 137: vrf_id_t vrf_id;
1.1 misho 138: };
139:
140: /* Prototypes of zebra client service functions. */
1.1.1.3 ! misho 141: extern struct zclient *zclient_new (struct thread_master *);
1.1 misho 142: extern void zclient_init (struct zclient *, int);
143: extern int zclient_start (struct zclient *);
144: extern void zclient_stop (struct zclient *);
145: extern void zclient_reset (struct zclient *);
146: extern void zclient_free (struct zclient *);
147:
1.1.1.2 misho 148: extern int zclient_socket_connect (struct zclient *);
149: extern void zclient_serv_path_set (char *path);
1.1.1.3 ! misho 150: extern const char *zclient_serv_path_get (void);
! 151:
! 152: extern void zclient_send_requests (struct zclient *, vrf_id_t);
1.1 misho 153:
154: /* Send redistribute command to zebra daemon. Do not update zclient state. */
1.1.1.3 ! misho 155: extern int zebra_redistribute_send (int command, struct zclient *, int type,
! 156: vrf_id_t vrf_id);
1.1 misho 157:
158: /* If state has changed, update state and call zebra_redistribute_send. */
1.1.1.3 ! misho 159: extern void zclient_redistribute (int command, struct zclient *, int type,
! 160: vrf_id_t vrf_id);
1.1 misho 161:
162: /* If state has changed, update state and send the command to zebra. */
1.1.1.3 ! misho 163: extern void zclient_redistribute_default (int command, struct zclient *,
! 164: vrf_id_t vrf_id);
1.1 misho 165:
166: /* Send the message in zclient->obuf to the zebra daemon (or enqueue it).
167: Returns 0 for success or -1 on an I/O error. */
168: extern int zclient_send_message(struct zclient *);
169:
170: /* create header for command, length to be filled in by user later */
1.1.1.3 ! misho 171: extern void zclient_create_header (struct stream *, uint16_t, vrf_id_t);
! 172: extern int zclient_read_header (struct stream *s, int sock, u_int16_t *size,
! 173: u_char *marker, u_char *version,
! 174: u_int16_t *vrf_id, u_int16_t *cmd);
! 175:
! 176: extern struct interface *zebra_interface_add_read (struct stream *,
! 177: vrf_id_t);
! 178: extern struct interface *zebra_interface_state_read (struct stream *,
! 179: vrf_id_t);
! 180: extern struct connected *zebra_interface_address_read (int, struct stream *,
! 181: vrf_id_t);
1.1 misho 182: extern void zebra_interface_if_set_value (struct stream *, struct interface *);
183: extern void zebra_router_id_update_read (struct stream *s, struct prefix *rid);
184: extern int zapi_ipv4_route (u_char, struct zclient *, struct prefix_ipv4 *,
185: struct zapi_ipv4 *);
186:
187: #ifdef HAVE_IPV6
188: /* IPv6 prefix add and delete function prototype. */
189:
190: struct zapi_ipv6
191: {
192: u_char type;
193:
194: u_char flags;
195:
196: u_char message;
197:
1.1.1.2 misho 198: safi_t safi;
199:
1.1 misho 200: u_char nexthop_num;
201: struct in6_addr **nexthop;
202:
203: u_char ifindex_num;
1.1.1.3 ! misho 204: ifindex_t *ifindex;
1.1 misho 205:
206: u_char distance;
207:
208: u_int32_t metric;
1.1.1.3 ! misho 209:
! 210: u_int32_t mtu;
! 211:
! 212: vrf_id_t vrf_id;
1.1 misho 213: };
214:
215: extern int zapi_ipv6_route (u_char cmd, struct zclient *zclient,
216: struct prefix_ipv6 *p, struct zapi_ipv6 *api);
217: #endif /* HAVE_IPV6 */
218:
219: #endif /* _ZEBRA_ZCLIENT_H */
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