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Fix intercepts: don't double-snoop throttled customers, ensure
[l2tpns.git]
/
bgp.c
diff --git
a/bgp.c
b/bgp.c
index
ec084d1
..
5d7c578
100644
(file)
--- a/
bgp.c
+++ b/
bgp.c
@@
-10,7
+10,7
@@
* nor RFC2385 (which requires a kernel patch on 2.4 kernels).
*/
* nor RFC2385 (which requires a kernel patch on 2.4 kernels).
*/
-/* $Id: bgp.c,v 1.1 2004/06/23 03:52:24 fred_nerk Exp $ */
+char const *cvs_id_bgp = "$Id: bgp.c,v 1.5 2004/11/05 04:55:26 bodea Exp $";
#include <stdlib.h>
#include <unistd.h>
#include <stdlib.h>
#include <unistd.h>
@@
-66,7
+66,7
@@
int bgp_setup(int as)
if (!((peer->outbuf = malloc(sizeof(*peer->outbuf)))
&& (peer->inbuf = malloc(sizeof(*peer->inbuf)))))
{
if (!((peer->outbuf = malloc(sizeof(*peer->outbuf)))
&& (peer->inbuf = malloc(sizeof(*peer->inbuf)))))
{
-
log
(0, 0, 0, 0, "Can't allocate buffers for bgp peer (%s)\n",
+
LOG
(0, 0, 0, 0, "Can't allocate buffers for bgp peer (%s)\n",
strerror(errno));
return 0;
strerror(errno));
return 0;
@@
-108,7
+108,7
@@
int bgp_start(struct bgp_peer *peer, char *name, int as, int enable)
if (!(h = gethostbyname(name)) || h->h_addrtype != AF_INET)
{
if (!(h = gethostbyname(name)) || h->h_addrtype != AF_INET)
{
-
log
(0, 0, 0, 0, "Can't get address for BGP peer %s (%s)\n",
+
LOG
(0, 0, 0, 0, "Can't get address for BGP peer %s (%s)\n",
name, h ? "no address" : hstrerror(h_errno));
return 0;
name, h ? "no address" : hstrerror(h_errno));
return 0;
@@
-212,7
+212,7
@@
int bgp_start(struct bgp_peer *peer, char *name, int as, int enable)
if (!(peer->path_attrs = malloc(peer->path_attr_len)))
{
if (!(peer->path_attrs = malloc(peer->path_attr_len)))
{
-
log
(0, 0, 0, 0, "Can't allocate path_attrs for %s (%s)\n",
+
LOG
(0, 0, 0, 0, "Can't allocate path_attrs for %s (%s)\n",
name, strerror(errno));
return 0;
name, strerror(errno));
return 0;
@@
-220,7
+220,7
@@
int bgp_start(struct bgp_peer *peer, char *name, int as, int enable)
memcpy(peer->path_attrs, path_attrs, peer->path_attr_len);
memcpy(peer->path_attrs, path_attrs, peer->path_attr_len);
-
log
(4, 0, 0, 0, "Initiating BGP connection to %s (routing %s)\n",
+
LOG
(4, 0, 0, 0, "Initiating BGP connection to %s (routing %s)\n",
name, enable ? "enabled" : "suspended");
/* we have at least one peer configured */
name, enable ? "enabled" : "suspended");
/* we have at least one peer configured */
@@
-259,7
+259,7
@@
static void bgp_clear(struct bgp_peer *peer)
peer->state = peer->next_state;
peer->state_time = time_now;
peer->state = peer->next_state;
peer->state_time = time_now;
-
log
(4, 0, 0, 0, "BGP peer %s: state %s\n", peer->name,
+
LOG
(4, 0, 0, 0, "BGP peer %s: state %s\n", peer->name,
bgp_state_str(peer->next_state));
}
}
bgp_state_str(peer->next_state));
}
}
@@
-267,14
+267,14
@@
static void bgp_clear(struct bgp_peer *peer)
/* initiate a clean shutdown */
void bgp_stop(struct bgp_peer *peer)
{
/* initiate a clean shutdown */
void bgp_stop(struct bgp_peer *peer)
{
-
log
(4, 0, 0, 0, "Terminating BGP connection to %s\n", peer->name);
+
LOG
(4, 0, 0, 0, "Terminating BGP connection to %s\n", peer->name);
bgp_send_notification(peer, BGP_ERR_CEASE, 0);
}
/* drop connection (if any) and set state to Disabled */
void bgp_halt(struct bgp_peer *peer)
{
bgp_send_notification(peer, BGP_ERR_CEASE, 0);
}
/* drop connection (if any) and set state to Disabled */
void bgp_halt(struct bgp_peer *peer)
{
-
log
(4, 0, 0, 0, "Aborting BGP connection to %s\n", peer->name);
+
LOG
(4, 0, 0, 0, "Aborting BGP connection to %s\n", peer->name);
peer->next_state = Disabled;
bgp_clear(peer);
}
peer->next_state = Disabled;
bgp_clear(peer);
}
@@
-384,7
+384,7
@@
int bgp_add_route(in_addr_t ip, in_addr_t mask)
/* insert into route list; sorted */
if (!(r = malloc(sizeof(*r))))
{
/* insert into route list; sorted */
if (!(r = malloc(sizeof(*r))))
{
-
log
(0, 0, 0, 0, "Can't allocate route for %s/%d (%s)\n",
+
LOG
(0, 0, 0, 0, "Can't allocate route for %s/%d (%s)\n",
inet_toa(add.dest.prefix), add.dest.len, strerror(errno));
return 0;
inet_toa(add.dest.prefix), add.dest.len, strerror(errno));
return 0;
@@
-398,7
+398,7
@@
int bgp_add_route(in_addr_t ip, in_addr_t mask)
if (bgp_peers[i].state == Established)
bgp_peers[i].update_routes = 1;
if (bgp_peers[i].state == Established)
bgp_peers[i].update_routes = 1;
-
log
(4, 0, 0, 0, "Registered BGP route %s/%d\n", inet_toa(add.dest.prefix),
+
LOG
(4, 0, 0, 0, "Registered BGP route %s/%d\n", inet_toa(add.dest.prefix),
add.dest.len);
return 1;
add.dest.len);
return 1;
@@
-447,7
+447,7
@@
int bgp_del_route(in_addr_t ip, in_addr_t mask)
if (bgp_peers[i].state == Established)
bgp_peers[i].update_routes = 1;
if (bgp_peers[i].state == Established)
bgp_peers[i].update_routes = 1;
-
log
(4, 0, 0, 0, "Removed BGP route %s/%d\n", inet_toa(del.dest.prefix),
+
LOG
(4, 0, 0, 0, "Removed BGP route %s/%d\n", inet_toa(del.dest.prefix),
del.dest.len);
return 1;
del.dest.len);
return 1;
@@
-467,7
+467,7
@@
void bgp_enable_routing(int enable)
bgp_peers[i].update_routes = 1;
}
bgp_peers[i].update_routes = 1;
}
-
log
(4, 0, 0, 0, "%s BGP routing\n", enable ? "Enabled" : "Suspended");
+
LOG
(4, 0, 0, 0, "%s BGP routing\n", enable ? "Enabled" : "Suspended");
}
/* return a bitmask indicating if the socket should be added to the
}
/* return a bitmask indicating if the socket should be added to the
@@
-573,7
+573,7
@@
int bgp_process(struct bgp_peer *peer, int readable, int writable)
{
if (time_now > peer->expire_time)
{
{
if (time_now > peer->expire_time)
{
-
log
(1, 0, 0, 0, "No message from BGP peer %s in %ds\n",
+
LOG
(1, 0, 0, 0, "No message from BGP peer %s in %ds\n",
peer->name, peer->hold);
bgp_send_notification(peer, BGP_ERR_HOLD_TIMER_EXP, 0);
peer->name, peer->hold);
bgp_send_notification(peer, BGP_ERR_HOLD_TIMER_EXP, 0);
@@
-590,7
+590,7
@@
int bgp_process(struct bgp_peer *peer, int readable, int writable)
}
else if (time_now > peer->state_time + BGP_KEEPALIVE_TIME)
{
}
else if (time_now > peer->state_time + BGP_KEEPALIVE_TIME)
{
-
log
(1, 0, 0, 0, "%s timer expired for BGP peer %s\n",
+
LOG
(1, 0, 0, 0, "%s timer expired for BGP peer %s\n",
bgp_state_str(peer->state), peer->name);
return bgp_restart(peer);
bgp_state_str(peer->state), peer->name);
return bgp_restart(peer);
@@
-650,7
+650,7
@@
static int bgp_connect(struct bgp_peer *peer)
struct servent *serv;
if (!(serv = getservbyname("bgp", "tcp")))
{
struct servent *serv;
if (!(serv = getservbyname("bgp", "tcp")))
{
-
log
(0, 0, 0, 0, "Can't get bgp service (%s)\n", strerror(errno));
+
LOG
(0, 0, 0, 0, "Can't get bgp service (%s)\n", strerror(errno));
return 0;
}
return 0;
}
@@
-659,7
+659,7
@@
static int bgp_connect(struct bgp_peer *peer)
if ((peer->sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
{
if ((peer->sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
{
-
log
(0, 0, 0, 0, "Can't create a socket for BGP peer %s (%s)\n",
+
LOG
(0, 0, 0, 0, "Can't create a socket for BGP peer %s (%s)\n",
peer->name, strerror(errno));
peer->state = peer->next_state = Disabled;
peer->name, strerror(errno));
peer->state = peer->next_state = Disabled;
@@
-682,7
+682,7
@@
static int bgp_connect(struct bgp_peer *peer)
if (errno != EINPROGRESS)
{
if (errno != EINPROGRESS)
{
-
log
(1, 0, 0, 0, "Can't connect to BGP peer %s (%s)\n",
+
LOG
(1, 0, 0, 0, "Can't connect to BGP peer %s (%s)\n",
inet_ntoa(addr.sin_addr), strerror(errno));
bgp_set_retry(peer);
inet_ntoa(addr.sin_addr), strerror(errno));
bgp_set_retry(peer);
@@
-692,7
+692,7
@@
static int bgp_connect(struct bgp_peer *peer)
peer->state = Connect;
peer->state_time = time_now;
peer->state = Connect;
peer->state_time = time_now;
-
log
(4, 0, 0, 0, "BGP peer %s: state Connect\n", peer->name);
+
LOG
(4, 0, 0, 0, "BGP peer %s: state Connect\n", peer->name);
return 1;
}
return 1;
}
@@
-700,7
+700,7
@@
static int bgp_connect(struct bgp_peer *peer)
peer->state_time = time_now;
peer->retry_time = peer->retry_count = 0;
peer->state_time = time_now;
peer->retry_time = peer->retry_count = 0;
-
log
(4, 0, 0, 0, "BGP peer %s: state Active\n", inet_ntoa(addr.sin_addr));
+
LOG
(4, 0, 0, 0, "BGP peer %s: state Active\n", inet_ntoa(addr.sin_addr));
return bgp_send_open(peer);
}
return bgp_send_open(peer);
}
@@
-713,7
+713,7
@@
static int bgp_handle_connect(struct bgp_peer *peer)
getsockopt(peer->sock, SOL_SOCKET, SO_ERROR, &err, &len);
if (err)
{
getsockopt(peer->sock, SOL_SOCKET, SO_ERROR, &err, &len);
if (err)
{
-
log
(1, 0, 0, 0, "Can't connect to BGP peer %s (%s)\n", peer->name,
+
LOG
(1, 0, 0, 0, "Can't connect to BGP peer %s (%s)\n", peer->name,
strerror(err));
bgp_set_retry(peer);
strerror(err));
bgp_set_retry(peer);
@@
-723,7
+723,7
@@
static int bgp_handle_connect(struct bgp_peer *peer)
peer->state = Active;
peer->state_time = time_now;
peer->state = Active;
peer->state_time = time_now;
-
log
(4, 0, 0, 0, "BGP peer %s: state Active\n", peer->name);
+
LOG
(4, 0, 0, 0, "BGP peer %s: state Active\n", peer->name);
return bgp_send_open(peer);
}
return bgp_send_open(peer);
}
@@
-744,9
+744,9
@@
static int bgp_write(struct bgp_peer *peer)
return 1;
if (errno == EPIPE)
return 1;
if (errno == EPIPE)
-
log
(1, 0, 0, 0, "Connection to BGP peer %s closed\n", peer->name);
+
LOG
(1, 0, 0, 0, "Connection to BGP peer %s closed\n", peer->name);
else
else
-
log
(1, 0, 0, 0, "Can't write to BGP peer %s (%s)\n", peer->name,
+
LOG
(1, 0, 0, 0, "Can't write to BGP peer %s (%s)\n", peer->name,
strerror(errno));
bgp_set_retry(peer);
strerror(errno));
bgp_set_retry(peer);
@@
-759,7
+759,7
@@
static int bgp_write(struct bgp_peer *peer)
return 1;
}
return 1;
}
-
log
(4, 0, 0, 0, "Sent %s to BGP peer %s\n",
+
LOG
(4, 0, 0, 0, "Sent %s to BGP peer %s\n",
bgp_msg_type_str(peer->outbuf->packet.header.type), peer->name);
peer->outbuf->packet.header.len = 0;
bgp_msg_type_str(peer->outbuf->packet.header.type), peer->name);
peer->outbuf->packet.header.len = 0;
@@
-779,7
+779,7
@@
static int bgp_write(struct bgp_peer *peer)
peer->state = peer->next_state;
peer->state_time = time_now;
peer->state = peer->next_state;
peer->state_time = time_now;
-
log
(4, 0, 0, 0, "BGP peer %s: state %s\n", peer->name,
+
LOG
(4, 0, 0, 0, "BGP peer %s: state %s\n", peer->name,
bgp_state_str(peer->state));
}
bgp_state_str(peer->state));
}
@@
-796,7
+796,7
@@
static int bgp_read(struct bgp_peer *peer)
{
if (!r)
{
{
if (!r)
{
-
log
(1, 0, 0, 0, "Connection to BGP peer %s closed\n", peer->name);
+
LOG
(1, 0, 0, 0, "Connection to BGP peer %s closed\n", peer->name);
}
else
{
}
else
{
@@
-806,7
+806,7
@@
static int bgp_read(struct bgp_peer *peer)
if (errno == EAGAIN)
return 1;
if (errno == EAGAIN)
return 1;
-
log
(1, 0, 0, 0, "Can't read from BGP peer %s (%s)\n", peer->name,
+
LOG
(1, 0, 0, 0, "Can't read from BGP peer %s (%s)\n", peer->name,
strerror(errno));
}
strerror(errno));
}
@@
-826,7
+826,7
@@
static int bgp_handle_input(struct bgp_peer *peer)
if (len > BGP_MAX_PACKET_SIZE)
{
if (len > BGP_MAX_PACKET_SIZE)
{
-
log
(1, 0, 0, 0, "Bad header length from BGP %s\n", peer->name);
+
LOG
(1, 0, 0, 0, "Bad header length from BGP %s\n", peer->name);
bgp_send_notification(peer, BGP_ERR_HEADER, BGP_ERR_HDR_BAD_LEN);
return 0;
}
bgp_send_notification(peer, BGP_ERR_HEADER, BGP_ERR_HDR_BAD_LEN);
return 0;
}
@@
-834,7
+834,7
@@
static int bgp_handle_input(struct bgp_peer *peer)
if (peer->inbuf->done < len)
return 0;
if (peer->inbuf->done < len)
return 0;
-
log
(4, 0, 0, 0, "Received %s from BGP peer %s\n",
+
LOG
(4, 0, 0, 0, "Received %s from BGP peer %s\n",
bgp_msg_type_str(p->header.type), peer->name);
switch (p->header.type)
bgp_msg_type_str(p->header.type), peer->name);
switch (p->header.type)
@@
-848,7
+848,7
@@
static int bgp_handle_input(struct bgp_peer *peer)
{
if ((unsigned char) p->header.marker[i] != 0xff)
{
{
if ((unsigned char) p->header.marker[i] != 0xff)
{
-
log
(1, 0, 0, 0, "Invalid marker from BGP peer %s\n",
+
LOG
(1, 0, 0, 0, "Invalid marker from BGP peer %s\n",
peer->name);
bgp_send_notification(peer, BGP_ERR_HEADER,
peer->name);
bgp_send_notification(peer, BGP_ERR_HEADER,
@@
-860,7
+860,7
@@
static int bgp_handle_input(struct bgp_peer *peer)
if (peer->state != OpenSent)
{
if (peer->state != OpenSent)
{
-
log
(1, 0, 0, 0, "OPEN from BGP peer %s in %s state\n",
+
LOG
(1, 0, 0, 0, "OPEN from BGP peer %s in %s state\n",
peer->name, bgp_state_str(peer->state));
bgp_send_notification(peer, BGP_ERR_FSM, 0);
peer->name, bgp_state_str(peer->state));
bgp_send_notification(peer, BGP_ERR_FSM, 0);
@@
-871,7
+871,7
@@
static int bgp_handle_input(struct bgp_peer *peer)
if (data.version != BGP_VERSION)
{
if (data.version != BGP_VERSION)
{
-
log
(1, 0, 0, 0, "Bad version (%d) sent by BGP peer %s\n",
+
LOG
(1, 0, 0, 0, "Bad version (%d) sent by BGP peer %s\n",
(int) data.version, peer->name);
bgp_send_notification(peer, BGP_ERR_OPEN, BGP_ERR_OPN_VERSION);
(int) data.version, peer->name);
bgp_send_notification(peer, BGP_ERR_OPEN, BGP_ERR_OPN_VERSION);
@@
-880,7
+880,7
@@
static int bgp_handle_input(struct bgp_peer *peer)
if (ntohs(data.as) != peer->as)
{
if (ntohs(data.as) != peer->as)
{
-
log
(1, 0, 0, 0, "Bad AS sent by BGP peer %s (got %d, "
+
LOG
(1, 0, 0, 0, "Bad AS sent by BGP peer %s (got %d, "
"expected %d)\n", peer->name, (int) htons(data.as),
(int) peer->as);
"expected %d)\n", peer->name, (int) htons(data.as),
(int) peer->as);
@@
-890,7
+890,7
@@
static int bgp_handle_input(struct bgp_peer *peer)
if ((peer->hold = ntohs(data.hold_time)) < 10)
{
if ((peer->hold = ntohs(data.hold_time)) < 10)
{
-
log
(1, 0, 0, 0, "Bad hold time (%d) from BGP peer %s\n",
+
LOG
(1, 0, 0, 0, "Bad hold time (%d) from BGP peer %s\n",
peer->hold, peer->name);
bgp_send_notification(peer, BGP_ERR_OPEN, BGP_ERR_OPN_HOLD_TIME);
peer->hold, peer->name);
bgp_send_notification(peer, BGP_ERR_OPEN, BGP_ERR_OPN_HOLD_TIME);
@@
-915,7
+915,7
@@
static int bgp_handle_input(struct bgp_peer *peer)
peer->retry_count = 0;
peer->retry_time = 0;
peer->retry_count = 0;
peer->retry_time = 0;
-
log
(4, 0, 0, 0, "BGP peer %s: state Established\n", peer->name);
+
LOG
(4, 0, 0, 0, "BGP peer %s: state Established\n", peer->name);
}
break;
}
break;
@@
-928,13
+928,13
@@
static int bgp_handle_input(struct bgp_peer *peer)
if (notification->error_code == BGP_ERR_CEASE)
{
if (notification->error_code == BGP_ERR_CEASE)
{
-
log
(4, 0, 0, 0, "BGP peer %s sent CEASE\n", peer->name);
+
LOG
(4, 0, 0, 0, "BGP peer %s sent CEASE\n", peer->name);
bgp_halt(peer);
return 0;
}
/* FIXME: should handle more notifications */
bgp_halt(peer);
return 0;
}
/* FIXME: should handle more notifications */
-
log
(4, 0, 0, 0, "BGP peer %s sent unhandled NOTIFICATION %d\n",
+
LOG
(4, 0, 0, 0, "BGP peer %s sent unhandled NOTIFICATION %d\n",
peer->name, (int) notification->error_code);
}
peer->name, (int) notification->error_code);
}
@@
-1053,7
+1053,7
@@
static int bgp_send_update(struct bgp_peer *peer)
unf_len += s;
len += s;
unf_len += s;
len += s;
-
log
(5, 0, 0, 0, "Withdrawing route %s/%d from BGP peer %s\n",
+
LOG
(5, 0, 0, 0, "Withdrawing route %s/%d from BGP peer %s\n",
inet_toa(tmp->dest.prefix), tmp->dest.len, peer->name);
free(tmp);
inet_toa(tmp->dest.prefix), tmp->dest.len, peer->name);
free(tmp);
@@
-1103,7
+1103,7
@@
static int bgp_send_update(struct bgp_peer *peer)
{
if (!(e = malloc(sizeof(*e))))
{
{
if (!(e = malloc(sizeof(*e))))
{
-
log
(0, 0, 0, 0, "Can't allocate route for %s/%d (%s)\n",
+
LOG
(0, 0, 0, 0, "Can't allocate route for %s/%d (%s)\n",
inet_toa(add->dest.prefix), add->dest.len, strerror(errno));
return 0;
inet_toa(add->dest.prefix), add->dest.len, strerror(errno));
return 0;
@@
-1127,7
+1127,7
@@
static int bgp_send_update(struct bgp_peer *peer)
data += s;
len += s;
data += s;
len += s;
-
log
(5, 0, 0, 0, "Advertising route %s/%d to BGP peer %s\n",
+
LOG
(5, 0, 0, 0, "Advertising route %s/%d to BGP peer %s\n",
inet_toa(add->dest.prefix), add->dest.len, peer->name);
}
else
inet_toa(add->dest.prefix), add->dest.len, peer->name);
}
else
@@
-1188,6
+1188,12
@@
int cmd_show_bgp(struct cli_def *cli, char *command, char **argv, int argc)
if (!bgp_configured)
return CLI_OK;
if (!bgp_configured)
return CLI_OK;
+ if (CLI_HELP_REQUESTED)
+ return cli_arg_help(cli, 1,
+ "A.B.C.D", "BGP peer address",
+ "NAME", "BGP peer name",
+ NULL);
+
cli_print(cli, "BGPv%d router identifier %s, local AS number %d, "
"hold time %ds", BGP_VERSION, inet_toa(my_address), (int) our_as,
BGP_HOLD_TIME);
cli_print(cli, "BGPv%d router identifier %s, local AS number %d, "
"hold time %ds", BGP_VERSION, inet_toa(my_address), (int) our_as,
BGP_HOLD_TIME);
@@
-1235,6
+1241,12
@@
int cmd_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc)
if (!bgp_configured)
return CLI_OK;
if (!bgp_configured)
return CLI_OK;
+ if (CLI_HELP_REQUESTED)
+ return cli_arg_help(cli, 1,
+ "A.B.C.D", "BGP peer address",
+ "NAME", "BGP peer name",
+ NULL);
+
for (i = 0; i < BGP_NUM_PEERS; i++)
{
if (bgp_peers[i].state != Established)
for (i = 0; i < BGP_NUM_PEERS; i++)
{
if (bgp_peers[i].state != Established)
@@
-1262,6
+1274,12
@@
int cmd_no_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc
if (!bgp_configured)
return CLI_OK;
if (!bgp_configured)
return CLI_OK;
+ if (CLI_HELP_REQUESTED)
+ return cli_arg_help(cli, 1,
+ "A.B.C.D", "BGP peer address",
+ "NAME", "BGP peer name",
+ NULL);
+
for (i = 0; i < BGP_NUM_PEERS; i++)
{
if (bgp_peers[i].state != Established)
for (i = 0; i < BGP_NUM_PEERS; i++)
{
if (bgp_peers[i].state != Established)
@@
-1290,6
+1308,12
@@
int cmd_restart_bgp(struct cli_def *cli, char *command, char **argv, int argc)
if (!bgp_configured)
return CLI_OK;
if (!bgp_configured)
return CLI_OK;
+ if (CLI_HELP_REQUESTED)
+ return cli_arg_help(cli, 1,
+ "A.B.C.D", "BGP peer address",
+ "NAME", "BGP peer name",
+ NULL);
+
for (i = 0; i < BGP_NUM_PEERS; i++)
{
if (!*bgp_peers[i].name)
for (i = 0; i < BGP_NUM_PEERS; i++)
{
if (!*bgp_peers[i].name)