zclient.c
上传用户:xiaozhuqw
上传日期:2009-11-15
资源大小:1338k
文件大小:21k
- /* Zebra's client library.
- * Copyright (C) 1999 Kunihiro Ishiguro
- *
- * This file is part of GNU Zebra.
- *
- * GNU Zebra is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 2, or (at your
- * option) any later version.
- *
- * GNU Zebra is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Zebra; see the file COPYING. If not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- */
- #include <zebra.h>
- #include "prefix.h"
- #include "stream.h"
- #include "network.h"
- #include "if.h"
- #include "log.h"
- #include "thread.h"
- #include "zclient.h"
- #include "memory.h"
- #include "table.h"
- #include "zebra/rib.h"
- #include "zebra/zserv.h"
- /* Zebra client events. */
- enum event {ZCLIENT_SCHEDULE, ZCLIENT_READ, ZCLIENT_CONNECT};
- /* Prototype for event manager. */
- static void zclient_event (enum event, struct zclient *);
- /* This file local debug flag. */
- int zclient_debug = 0;
- /* Allocate zclient structure. */
- struct zclient *
- zclient_new ()
- {
- struct zclient *zclient;
- zclient = XMALLOC (MTYPE_ZCLIENT, sizeof (struct zclient));
- memset (zclient, 0, sizeof (struct zclient));
- zclient->ibuf = stream_new (ZEBRA_MAX_PACKET_SIZ);
- zclient->obuf = stream_new (ZEBRA_MAX_PACKET_SIZ);
- return zclient;
- }
- /* Free zclient structure. */
- void
- zclient_free (struct zclient *zclient)
- {
- XFREE (MTYPE_ZCLIENT, zclient);
- }
- /* Initialize zebra client. Argument redist_default is unwanted
- redistribute route type. */
- void
- zclient_init (struct zclient *zclient, int redist_default)
- {
- int i;
-
- /* Enable zebra client connection by default. */
- zclient->enable = 1;
- /* Set -1 to the default socket value. */
- zclient->sock = -1;
- /* Clear redistribution flags. */
- for (i = 0; i < ZEBRA_ROUTE_MAX; i++)
- zclient->redist[i] = 0;
- /* Set unwanted redistribute route. bgpd does not need BGP route
- redistribution. */
- zclient->redist_default = redist_default;
- zclient->redist[redist_default] = 1;
- /* Set default-information redistribute to zero. */
- zclient->default_information = 0;
- /* Schedule first zclient connection. */
- if (zclient_debug)
- zlog_info ("zclient start scheduled");
- zclient_event (ZCLIENT_SCHEDULE, zclient);
- }
- /* Stop zebra client services. */
- void
- zclient_stop (struct zclient *zclient)
- {
- if (zclient_debug)
- zlog_info ("zclient stopped");
- /* Stop threads. */
- if (zclient->t_read)
- {
- thread_cancel (zclient->t_read);
- zclient->t_read = NULL;
- }
- if (zclient->t_connect)
- {
- thread_cancel (zclient->t_connect);
- zclient->t_connect = NULL;
- }
- /* Close socket. */
- if (zclient->sock >= 0)
- {
- close (zclient->sock);
- zclient->sock = -1;
- }
- zclient->fail = 0;
- }
- void
- zclient_reset (struct zclient *zclient)
- {
- zclient_stop (zclient);
- zclient_init (zclient, zclient->redist_default);
- }
- /* Make socket to zebra daemon. Return zebra socket. */
- int
- zclient_socket ()
- {
- int sock;
- int ret;
- struct sockaddr_in serv;
- /* We should think about IPv6 connection. */
- sock = socket (AF_INET, SOCK_STREAM, 0);
- if (sock < 0)
- return -1;
-
- /* Make server socket. */
- memset (&serv, 0, sizeof (struct sockaddr_in));
- serv.sin_family = AF_INET;
- serv.sin_port = htons (ZEBRA_PORT);
- #ifdef HAVE_SIN_LEN
- serv.sin_len = sizeof (struct sockaddr_in);
- #endif /* HAVE_SIN_LEN */
- serv.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
- /* Connect to zebra. */
- ret = connect (sock, (struct sockaddr *) &serv, sizeof (serv));
- if (ret < 0)
- {
- close (sock);
- return -1;
- }
- return sock;
- }
- /* For sockaddr_un. */
- #include <sys/un.h>
- int
- zclient_socket_un (char *path)
- {
- int ret;
- int sock, len;
- struct sockaddr_un addr;
- sock = socket (AF_UNIX, SOCK_STREAM, 0);
- if (sock < 0)
- return -1;
-
- /* Make server socket. */
- memset (&addr, 0, sizeof (struct sockaddr_un));
- addr.sun_family = AF_UNIX;
- strncpy (addr.sun_path, path, strlen (path));
- #ifdef HAVE_SUN_LEN
- len = addr.sun_len = SUN_LEN(&addr);
- #else
- len = sizeof (addr.sun_family) + strlen (addr.sun_path);
- #endif /* HAVE_SUN_LEN */
- ret = connect (sock, (struct sockaddr *) &addr, len);
- if (ret < 0)
- {
- close (sock);
- return -1;
- }
- return sock;
- }
- /* Send simple Zebra message. */
- int
- zebra_message_send (struct zclient *zclient, int command)
- {
- struct stream *s;
- /* Get zclient output buffer. */
- s = zclient->obuf;
- stream_reset (s);
- /* Send very simple command only Zebra message. */
- stream_putw (s, 3);
- stream_putc (s, command);
- return writen (zclient->sock, s->data, 3);
- }
- /* Make connection to zebra daemon. */
- int
- zclient_start (struct zclient *zclient)
- {
- int i;
- if (zclient_debug)
- zlog_info ("zclient_start is called");
- /* zclient is disabled. */
- if (! zclient->enable)
- return 0;
- /* If already connected to the zebra. */
- if (zclient->sock >= 0)
- return 0;
- /* Check connect thread. */
- if (zclient->t_connect)
- return 0;
- /* Make socket. */
- #ifdef HAVE_TCP_ZEBRA
- zclient->sock = zclient_socket ();
- #else
- zclient->sock = zclient_socket_un (ZEBRA_SERV_PATH);
- #endif /* HAVE_TCP_ZEBRA */
- if (zclient->sock < 0)
- {
- if (zclient_debug)
- zlog_info ("zclient connection fail");
- zclient->fail++;
- zclient_event (ZCLIENT_CONNECT, zclient);
- return -1;
- }
- /* Clear fail count. */
- zclient->fail = 0;
- if (zclient_debug)
- zlog_info ("zclient connect success with socket [%d]", zclient->sock);
-
- /* Create read thread. */
- zclient_event (ZCLIENT_READ, zclient);
- /* We need interface information. */
- zebra_message_send (zclient, ZEBRA_INTERFACE_ADD);
- /* Flush all redistribute request. */
- for (i = 0; i < ZEBRA_ROUTE_MAX; i++)
- if (i != zclient->redist_default && zclient->redist[i])
- zebra_redistribute_send (ZEBRA_REDISTRIBUTE_ADD, zclient->sock, i);
- /* If default information is needed. */
- if (zclient->default_information)
- zebra_message_send (zclient, ZEBRA_REDISTRIBUTE_DEFAULT_ADD);
- return 0;
- }
- /* This function is a wrapper function for calling zclient_start from
- timer or event thread. */
- int
- zclient_connect (struct thread *t)
- {
- struct zclient *zclient;
- zclient = THREAD_ARG (t);
- zclient->t_connect = NULL;
- if (zclient_debug)
- zlog_info ("zclient_connect is called");
- return zclient_start (zclient);
- }
- int
- zapi_ipv4_add (struct zclient *zclient, struct prefix_ipv4 *p,
- struct zapi_ipv4 *api)
- {
- int i;
- int psize;
- struct stream *s;
- /* Reset stream. */
- s = zclient->obuf;
- stream_reset (s);
- /* Length place holder. */
- stream_putw (s, 0);
- /* Put command, type and nexthop. */
- stream_putc (s, ZEBRA_IPV4_ROUTE_ADD);
- stream_putc (s, api->type);
- stream_putc (s, api->flags);
- stream_putc (s, api->message);
-
- /* Put prefix information. */
- psize = PSIZE (p->prefixlen);
- stream_putc (s, p->prefixlen);
- stream_write (s, (u_char *)&p->prefix, psize);
- /* Nexthop, ifindex, distance and metric information. */
- if (CHECK_FLAG (api->message, ZAPI_MESSAGE_NEXTHOP))
- {
- if (CHECK_FLAG (api->flags, ZEBRA_FLAG_BLACKHOLE))
- {
- stream_putc (s, 1);
- stream_putc (s, ZEBRA_NEXTHOP_BLACKHOLE);
- }
- else
- stream_putc (s, api->nexthop_num + api->ifindex_num);
- for (i = 0; i < api->nexthop_num; i++)
- {
- stream_putc (s, ZEBRA_NEXTHOP_IPV4);
- stream_put_in_addr (s, api->nexthop[i]);
- }
- for (i = 0; i < api->ifindex_num; i++)
- {
- stream_putc (s, ZEBRA_NEXTHOP_IFINDEX);
- stream_putl (s, api->ifindex[i]);
- }
- }
- if (CHECK_FLAG (api->message, ZAPI_MESSAGE_DISTANCE))
- stream_putc (s, api->distance);
- if (CHECK_FLAG (api->message, ZAPI_MESSAGE_METRIC))
- stream_putl (s, api->metric);
- /* Put length at the first point of the stream. */
- stream_putw_at (s, 0, stream_get_endp (s));
- return writen (zclient->sock, s->data, stream_get_endp (s));
- }
- int
- zapi_ipv4_delete (struct zclient *zclient, struct prefix_ipv4 *p,
- struct zapi_ipv4 *api)
- {
- int i;
- int psize;
- struct stream *s;
- /* Reset stream. */
- s = zclient->obuf;
- stream_reset (s);
- /* Length place holder. */
- stream_putw (s, 0);
- /* Put command, type and nexthop. */
- stream_putc (s, ZEBRA_IPV4_ROUTE_DELETE);
- stream_putc (s, api->type);
- stream_putc (s, api->flags);
- stream_putc (s, api->message);
-
- /* Put prefix information. */
- psize = PSIZE (p->prefixlen);
- stream_putc (s, p->prefixlen);
- stream_write (s, (u_char *)&p->prefix, psize);
- /* Nexthop, ifindex, distance and metric information. */
- if (CHECK_FLAG (api->message, ZAPI_MESSAGE_NEXTHOP))
- {
- if (CHECK_FLAG (api->flags, ZEBRA_FLAG_BLACKHOLE))
- {
- stream_putc (s, 1);
- stream_putc (s, ZEBRA_NEXTHOP_BLACKHOLE);
- }
- else
- stream_putc (s, api->nexthop_num + api->ifindex_num);
- for (i = 0; i < api->nexthop_num; i++)
- {
- stream_putc (s, ZEBRA_NEXTHOP_IPV4);
- stream_put_in_addr (s, api->nexthop[i]);
- }
- for (i = 0; i < api->ifindex_num; i++)
- {
- stream_putc (s, ZEBRA_NEXTHOP_IFINDEX);
- stream_putl (s, api->ifindex[i]);
- }
- }
- if (CHECK_FLAG (api->message, ZAPI_MESSAGE_DISTANCE))
- stream_putc (s, api->distance);
- if (CHECK_FLAG (api->message, ZAPI_MESSAGE_METRIC))
- stream_putl (s, api->metric);
- /* Put length at the first point of the stream. */
- stream_putw_at (s, 0, stream_get_endp (s));
- return writen (zclient->sock, s->data, stream_get_endp (s));
- }
- #ifdef HAVE_IPV6
- int
- zapi_ipv6_add (struct zclient *zclient, struct prefix_ipv6 *p,
- struct zapi_ipv6 *api)
- {
- int i;
- int psize;
- struct stream *s;
- /* Reset stream. */
- s = zclient->obuf;
- stream_reset (s);
- /* Length place holder. */
- stream_putw (s, 0);
- /* Put command, type and nexthop. */
- stream_putc (s, ZEBRA_IPV6_ROUTE_ADD);
- stream_putc (s, api->type);
- stream_putc (s, api->flags);
- stream_putc (s, api->message);
-
- /* Put prefix information. */
- psize = PSIZE (p->prefixlen);
- stream_putc (s, p->prefixlen);
- stream_write (s, (u_char *)&p->prefix, psize);
- /* Nexthop, ifindex, distance and metric information. */
- if (CHECK_FLAG (api->message, ZAPI_MESSAGE_NEXTHOP))
- {
- stream_putc (s, api->nexthop_num + api->ifindex_num);
- for (i = 0; i < api->nexthop_num; i++)
- {
- stream_putc (s, ZEBRA_NEXTHOP_IPV6);
- stream_write (s, (u_char *)api->nexthop[i], 16);
- }
- for (i = 0; i < api->ifindex_num; i++)
- {
- stream_putc (s, ZEBRA_NEXTHOP_IFINDEX);
- stream_putl (s, api->ifindex[i]);
- }
- }
- if (CHECK_FLAG (api->message, ZAPI_MESSAGE_DISTANCE))
- stream_putc (s, api->distance);
- if (CHECK_FLAG (api->message, ZAPI_MESSAGE_METRIC))
- stream_putl (s, api->metric);
- /* Put length at the first point of the stream. */
- stream_putw_at (s, 0, stream_get_endp (s));
- return writen (zclient->sock, s->data, stream_get_endp (s));
- }
- int
- zapi_ipv6_delete (struct zclient *zclient, struct prefix_ipv6 *p,
- struct zapi_ipv6 *api)
- {
- int i;
- int psize;
- struct stream *s;
- /* Reset stream. */
- s = zclient->obuf;
- stream_reset (s);
- /* Length place holder. */
- stream_putw (s, 0);
- /* Put command, type and nexthop. */
- stream_putc (s, ZEBRA_IPV6_ROUTE_DELETE);
- stream_putc (s, api->type);
- stream_putc (s, api->flags);
- stream_putc (s, api->message);
-
- /* Put prefix information. */
- psize = PSIZE (p->prefixlen);
- stream_putc (s, p->prefixlen);
- stream_write (s, (u_char *)&p->prefix, psize);
- /* Nexthop, ifindex, distance and metric information. */
- if (CHECK_FLAG (api->message, ZAPI_MESSAGE_NEXTHOP))
- {
- stream_putc (s, api->nexthop_num + api->ifindex_num);
- for (i = 0; i < api->nexthop_num; i++)
- {
- stream_putc (s, ZEBRA_NEXTHOP_IPV6);
- stream_write (s, (u_char *)api->nexthop[i], 16);
- }
- for (i = 0; i < api->ifindex_num; i++)
- {
- stream_putc (s, ZEBRA_NEXTHOP_IFINDEX);
- stream_putl (s, api->ifindex[i]);
- }
- }
- if (CHECK_FLAG (api->message, ZAPI_MESSAGE_DISTANCE))
- stream_putc (s, api->distance);
- if (CHECK_FLAG (api->message, ZAPI_MESSAGE_METRIC))
- stream_putl (s, api->metric);
- /* Put length at the first point of the stream. */
- stream_putw_at (s, 0, stream_get_endp (s));
- return writen (zclient->sock, s->data, stream_get_endp (s));
- }
- #endif /* HAVE_IPV6 */
- int
- zebra_redistribute_send (int command, int sock, int type)
- {
- int ret;
- struct stream *s;
- s = stream_new (ZEBRA_MAX_PACKET_SIZ);
- /* Total length of the messages. */
- stream_putw (s, 4);
-
- stream_putc (s, command);
- stream_putc (s, type);
- ret = writen (sock, s->data, 4);
- stream_free (s);
- return ret;
- }
- /* Interface addition from zebra daemon. */
- struct interface *
- zebra_interface_add_read (struct stream *s)
- {
- struct interface *ifp;
- u_char ifname_tmp[INTERFACE_NAMSIZ];
- /* Read interface name. */
- stream_get (ifname_tmp, s, INTERFACE_NAMSIZ);
- /* Lookup this by interface name. */
- ifp = if_lookup_by_name (ifname_tmp);
- /* If such interface does not exist, make new one. */
- if (! ifp)
- {
- ifp = if_create ();
- strncpy (ifp->name, ifname_tmp, IFNAMSIZ);
- }
- /* Read interface's index. */
- ifp->ifindex = stream_getl (s);
- /* Read interface's value. */
- ifp->flags = stream_getl (s);
- ifp->metric = stream_getl (s);
- ifp->mtu = stream_getl (s);
- ifp->bandwidth = stream_getl (s);
- #ifdef HAVE_SOCKADDR_DL
- stream_get (&ifp->sdl, s, sizeof (ifp->sdl));
- #else
- ifp->hw_addr_len = stream_getl (s);
- if (ifp->hw_addr_len)
- stream_get (ifp->hw_addr, s, ifp->hw_addr_len);
- #endif /* HAVE_SOCKADDR_DL */
-
- return ifp;
- }
- /* Read interface up/down msg from zebra daemon. */
- struct interface *
- zebra_interface_state_read (struct stream *s)
- {
- struct interface *ifp;
- u_char ifname_tmp[INTERFACE_NAMSIZ];
- /* Read interface name. */
- stream_get (ifname_tmp, s, INTERFACE_NAMSIZ);
- /* Lookup this by interface index. */
- ifp = if_lookup_by_name (ifname_tmp);
- /* If such interface does not exist, indicate an error */
- if (! ifp)
- return NULL;
- /* Read interface's index. */
- ifp->ifindex = stream_getl (s);
- /* Read interface's value. */
- ifp->flags = stream_getl (s);
- ifp->metric = stream_getl (s);
- ifp->mtu = stream_getl (s);
- ifp->bandwidth = stream_getl (s);
- return ifp;
- }
- struct connected *
- zebra_interface_address_add_read (struct stream *s)
- {
- unsigned int ifindex;
- struct interface *ifp;
- struct connected *ifc;
- struct prefix *p;
- int family;
- int plen;
- /* Get interface index. */
- ifindex = stream_getl (s);
- /* Lookup index. */
- ifp = if_lookup_by_index (ifindex);
- if (ifp == NULL)
- {
- zlog_warn ("zebra_interface_address_add_read: Can't find interface by ifindex: %d ", ifindex);
- return NULL;
- }
- /* Allocate new connected address. */
- ifc = connected_new ();
- ifc->ifp = ifp;
- /* Fetch flag. */
- ifc->flags = stream_getc (s);
- /* Fetch interface address. */
- p = prefix_new ();
- family = p->family = stream_getc (s);
- plen = prefix_blen (p);
- stream_get (&p->u.prefix, s, plen);
- p->prefixlen = stream_getc (s);
- ifc->address = p;
- /* Fetch destination address. */
- p = prefix_new ();
- stream_get (&p->u.prefix, s, plen);
- p->family = family;
- ifc->destination = p;
- p = ifc->address;
- /* Add connected address to the interface. */
- listnode_add (ifp->connected, ifc);
- return ifc;
- }
- struct connected *
- zebra_interface_address_delete_read (struct stream *s)
- {
- unsigned int ifindex;
- struct interface *ifp;
- struct connected *ifc;
- struct prefix p;
- struct prefix d;
- int family;
- int len;
- u_char flags;
- /* Get interface index. */
- ifindex = stream_getl (s);
- /* Lookup index. */
- ifp = if_lookup_by_index (ifindex);
- if (ifp == NULL)
- {
- zlog_warn ("zebra_interface_address_delete_read: Can't find interface by ifindex: %d ", ifindex);
- return NULL;
- }
- /* Fetch flag. */
- flags = stream_getc (s);
- /* Fetch interface address. */
- family = p.family = stream_getc (s);
- len = prefix_blen (&p);
- stream_get (&p.u.prefix, s, len);
- p.prefixlen = stream_getc (s);
- /* Fetch destination address. */
- stream_get (&d.u.prefix, s, len);
- d.family = family;
- ifc = connected_delete_by_prefix (ifp, &p);
- return ifc;
- }
- /* Zebra client message read function. */
- int
- zclient_read (struct thread *thread)
- {
- int ret;
- int nbytes;
- int sock;
- zebra_size_t length;
- zebra_command_t command;
- struct zclient *zclient;
- /* Get socket to zebra. */
- sock = THREAD_FD (thread);
- zclient = THREAD_ARG (thread);
- zclient->t_read = NULL;
- /* Clear input buffer. */
- stream_reset (zclient->ibuf);
- /* Read zebra header. */
- nbytes = stream_read (zclient->ibuf, sock, ZEBRA_HEADER_SIZE);
- /* zebra socket is closed. */
- if (nbytes == 0)
- {
- if (zclient_debug)
- zlog_info ("zclient connection closed socket [%d].", sock);
- zclient->fail++;
- zclient_stop (zclient);
- zclient_event (ZCLIENT_CONNECT, zclient);
- return -1;
- }
- /* zebra read error. */
- if (nbytes < 0 || nbytes != ZEBRA_HEADER_SIZE)
- {
- if (zclient_debug)
- zlog_info ("Can't read all packet (length %d).", nbytes);
- zclient->fail++;
- zclient_stop (zclient);
- zclient_event (ZCLIENT_CONNECT, zclient);
- return -1;
- }
- /* Fetch length and command. */
- length = stream_getw (zclient->ibuf);
- command = stream_getc (zclient->ibuf);
- /* Length check. */
- if (length >= zclient->ibuf->size)
- {
- stream_free (zclient->ibuf);
- zclient->ibuf = stream_new (length + 1);
- }
- length -= ZEBRA_HEADER_SIZE;
- /* Read rest of zebra packet. */
- nbytes = stream_read (zclient->ibuf, sock, length);
- if (nbytes != length)
- {
- if (zclient_debug)
- zlog_info ("zclient connection closed socket [%d].", sock);
- zclient->fail++;
- zclient_stop (zclient);
- zclient_event (ZCLIENT_CONNECT, zclient);
- return -1;
- }
- switch (command)
- {
- case ZEBRA_INTERFACE_ADD:
- if (zclient->interface_add)
- ret = (*zclient->interface_add) (command, zclient, length);
- break;
- case ZEBRA_INTERFACE_DELETE:
- if (zclient->interface_delete)
- ret = (*zclient->interface_delete) (command, zclient, length);
- break;
- case ZEBRA_INTERFACE_ADDRESS_ADD:
- if (zclient->interface_address_add)
- ret = (*zclient->interface_address_add) (command, zclient, length);
- break;
- case ZEBRA_INTERFACE_ADDRESS_DELETE:
- if (zclient->interface_address_delete)
- ret = (*zclient->interface_address_delete) (command, zclient, length);
- break;
- case ZEBRA_INTERFACE_UP:
- if (zclient->interface_up)
- ret = (*zclient->interface_up) (command, zclient, length);
- break;
- case ZEBRA_INTERFACE_DOWN:
- if (zclient->interface_down)
- ret = (*zclient->interface_down) (command, zclient, length);
- break;
- case ZEBRA_IPV4_ROUTE_ADD:
- if (zclient->ipv4_route_add)
- ret = (*zclient->ipv4_route_add) (command, zclient, length);
- break;
- case ZEBRA_IPV4_ROUTE_DELETE:
- if (zclient->ipv4_route_delete)
- ret = (*zclient->ipv4_route_delete) (command, zclient, length);
- break;
- case ZEBRA_IPV6_ROUTE_ADD:
- if (zclient->ipv6_route_add)
- ret = (*zclient->ipv6_route_add) (command, zclient, length);
- break;
- case ZEBRA_IPV6_ROUTE_DELETE:
- if (zclient->ipv6_route_delete)
- ret = (*zclient->ipv6_route_delete) (command, zclient, length);
- break;
- default:
- break;
- }
- /* Register read thread. */
- zclient_event (ZCLIENT_READ, zclient);
- return 0;
- }
- void
- zclient_redistribute_set (struct zclient *zclient, int type)
- {
- if (zclient->redist[type])
- return;
- zclient->redist[type] = 1;
- if (zclient->sock > 0)
- zebra_redistribute_send (ZEBRA_REDISTRIBUTE_ADD, zclient->sock, type);
- }
- void
- zclient_redistribute_unset (struct zclient *zclient, int type)
- {
- if (! zclient->redist[type])
- return;
- zclient->redist[type] = 0;
- if (zclient->sock > 0)
- zebra_redistribute_send (ZEBRA_REDISTRIBUTE_DELETE, zclient->sock, type);
- }
- void
- zclient_redistribute_default_set (struct zclient *zclient)
- {
- if (zclient->default_information)
- return;
- zclient->default_information = 1;
- if (zclient->sock > 0)
- zebra_message_send (zclient, ZEBRA_REDISTRIBUTE_DEFAULT_ADD);
- }
- void
- zclient_redistribute_default_unset (struct zclient *zclient)
- {
- if (! zclient->default_information)
- return;
- zclient->default_information = 0;
- if (zclient->sock > 0)
- zebra_message_send (zclient, ZEBRA_REDISTRIBUTE_DEFAULT_DELETE);
- }
- extern struct thread_master *master;
- static void
- zclient_event (enum event event, struct zclient *zclient)
- {
- switch (event)
- {
- case ZCLIENT_SCHEDULE:
- if (! zclient->t_connect)
- zclient->t_connect =
- thread_add_event (master, zclient_connect, zclient, 0);
- break;
- case ZCLIENT_CONNECT:
- if (zclient->fail >= 10)
- return;
- if (zclient_debug)
- zlog_info ("zclient connect schedule interval is %d",
- zclient->fail < 3 ? 10 : 60);
- if (! zclient->t_connect)
- zclient->t_connect =
- thread_add_timer (master, zclient_connect, zclient,
- zclient->fail < 3 ? 10 : 60);
- break;
- case ZCLIENT_READ:
- zclient->t_read =
- thread_add_read (master, zclient_read, zclient, zclient->sock);
- break;
- }
- }