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oops
[l2tpns.git]
/
bgp.c
diff --git
a/bgp.c
b/bgp.c
index
2d411e7
..
cf8ab7e
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).
*/
-char const *cvs_id_bgp = "$Id: bgp.c,v 1.
6 2004/11/11 03:07:42
bodea Exp $";
+char const *cvs_id_bgp = "$Id: bgp.c,v 1.
8 2004/11/29 02:17:17
bodea Exp $";
#include <stdlib.h>
#include <unistd.h>
#include <stdlib.h>
#include <unistd.h>
@@
-69,7
+69,7
@@
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, "Can't allocate buffers for bgp peer (%s)\n",
strerror(errno));
return 0;
strerror(errno));
return 0;
@@
-111,7
+111,7
@@
int bgp_start(struct bgp_peer *peer, char *name, int as, int keepalive, int hold
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, "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;
@@
-225,7
+225,7
@@
int bgp_start(struct bgp_peer *peer, char *name, int as, int keepalive, int hold
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, "Can't allocate path_attrs for %s (%s)\n",
name, strerror(errno));
return 0;
name, strerror(errno));
return 0;
@@
-233,7
+233,7
@@
int bgp_start(struct bgp_peer *peer, char *name, int as, int keepalive, int hold
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, "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 */
@@
-274,7
+274,7
@@
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, "BGP peer %s: state %s\n", peer->name,
bgp_state_str(peer->next_state));
}
}
bgp_state_str(peer->next_state));
}
}
@@
-282,14
+282,14
@@
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, "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, "Aborting BGP connection to %s\n", peer->name);
peer->next_state = Disabled;
bgp_clear(peer);
}
peer->next_state = Disabled;
bgp_clear(peer);
}
@@
-399,8
+399,8
@@
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",
-
inet_toa(add.dest.prefix
), add.dest.len, strerror(errno));
+ LOG(0, 0, 0, "Can't allocate route for %s/%d (%s)\n",
+
fmtaddr(add.dest.prefix, 0
), add.dest.len, strerror(errno));
return 0;
}
return 0;
}
@@
-413,8
+413,8
@@
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)
,
- add.dest.len);
+ LOG(4, 0, 0,
"Registered BGP route %s/%d\n"
,
+
fmtaddr(add.dest.prefix, 0),
add.dest.len);
return 1;
}
return 1;
}
@@
-462,8
+462,8
@@
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)
,
- del.dest.len);
+ LOG(4, 0, 0,
"Removed BGP route %s/%d\n"
,
+
fmtaddr(del.dest.prefix, 0),
del.dest.len);
return 1;
}
return 1;
}
@@
-482,7
+482,7
@@
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, "%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
@@
-588,7
+588,7
@@
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, "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);
@@
-605,7
+605,7
@@
int bgp_process(struct bgp_peer *peer, int readable, int writable)
}
else if (time_now > peer->state_time + BGP_STATE_TIME)
{
}
else if (time_now > peer->state_time + BGP_STATE_TIME)
{
- LOG(1, 0, 0,
0,
"%s timer expired for BGP peer %s\n",
+ LOG(1, 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);
@@
-665,7
+665,7
@@
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, "Can't get bgp service (%s)\n", strerror(errno));
return 0;
}
return 0;
}
@@
-674,7
+674,7
@@
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, "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;
@@
-697,7
+697,7
@@
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, "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);
@@
-707,7
+707,7
@@
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, "BGP peer %s: state Connect\n", peer->name);
return 1;
}
return 1;
}
@@
-715,7
+715,7
@@
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, "BGP peer %s: state Active\n", inet_ntoa(addr.sin_addr));
return bgp_send_open(peer);
}
return bgp_send_open(peer);
}
@@
-728,7
+728,7
@@
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, "Can't connect to BGP peer %s (%s)\n", peer->name,
strerror(err));
bgp_set_retry(peer);
strerror(err));
bgp_set_retry(peer);
@@
-738,7
+738,7
@@
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, "BGP peer %s: state Active\n", peer->name);
return bgp_send_open(peer);
}
return bgp_send_open(peer);
}
@@
-759,9
+759,9
@@
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, "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, "Can't write to BGP peer %s (%s)\n", peer->name,
strerror(errno));
bgp_set_retry(peer);
strerror(errno));
bgp_set_retry(peer);
@@
-774,7
+774,7
@@
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, "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;
@@
-794,7
+794,7
@@
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, "BGP peer %s: state %s\n", peer->name,
bgp_state_str(peer->state));
}
bgp_state_str(peer->state));
}
@@
-811,7
+811,7
@@
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, "Connection to BGP peer %s closed\n", peer->name);
}
else
{
}
else
{
@@
-821,7
+821,7
@@
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, "Can't read from BGP peer %s (%s)\n", peer->name,
strerror(errno));
}
strerror(errno));
}
@@
-841,7
+841,7
@@
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, "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;
}
@@
-849,7
+849,7
@@
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, "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)
@@
-857,13
+857,14
@@
static int bgp_handle_input(struct bgp_peer *peer)
case BGP_MSG_OPEN:
{
struct bgp_data_open data;
case BGP_MSG_OPEN:
{
struct bgp_data_open data;
+ int hold;
int i;
for (i = 0; i < sizeof(p->header.marker); i++)
{
if ((unsigned char) p->header.marker[i] != 0xff)
{
int i;
for (i = 0; i < sizeof(p->header.marker); i++)
{
if ((unsigned char) p->header.marker[i] != 0xff)
{
- LOG(1, 0, 0,
0,
"Invalid marker from BGP peer %s\n",
+ LOG(1, 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,
@@
-875,7
+876,7
@@
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, "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);
@@
-886,7
+887,7
@@
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, "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);
@@
-895,7
+896,7
@@
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, "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);
@@
-903,15
+904,19
@@
static int bgp_handle_input(struct bgp_peer *peer)
return 0;
}
return 0;
}
- if ((
peer->
hold = ntohs(data.hold_time)) < 3)
+ if ((hold = ntohs(data.hold_time)) < 3)
{
{
- LOG(1, 0, 0,
0,
"Bad hold time (%d) from BGP peer %s\n",
-
peer->
hold, peer->name);
+ LOG(1, 0, 0, "Bad hold time (%d) from BGP peer %s\n",
+ hold, peer->name);
bgp_send_notification(peer, BGP_ERR_OPEN, BGP_ERR_OPN_HOLD_TIME);
return 0;
}
bgp_send_notification(peer, BGP_ERR_OPEN, BGP_ERR_OPN_HOLD_TIME);
return 0;
}
+ /* pick lowest hold time */
+ if (hold < peer->hold)
+ peer->hold = hold;
+
/* adjust our keepalive based on negotiated hold value */
if (peer->keepalive * 3 > peer->hold)
peer->keepalive = peer->hold / 3;
/* adjust our keepalive based on negotiated hold value */
if (peer->keepalive * 3 > peer->hold)
peer->keepalive = peer->hold / 3;
@@
-934,7
+939,7
@@
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, "BGP peer %s: state Established\n", peer->name);
}
break;
}
break;
@@
-947,13
+952,13
@@
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, "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, "BGP peer %s sent unhandled NOTIFICATION %d\n",
peer->name, (int) notification->error_code);
}
peer->name, (int) notification->error_code);
}
@@
-1072,8
+1077,8
@@
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",
-
inet_toa(tmp->dest.prefix
), tmp->dest.len, peer->name);
+ LOG(5, 0, 0, "Withdrawing route %s/%d from BGP peer %s\n",
+
fmtaddr(tmp->dest.prefix, 0
), tmp->dest.len, peer->name);
free(tmp);
free(tmp);
@@
-1122,8
+1127,8
@@
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",
-
inet_toa(add->dest.prefix
), add->dest.len, strerror(errno));
+ LOG(0, 0, 0, "Can't allocate route for %s/%d (%s)\n",
+
fmtaddr(add->dest.prefix, 0
), add->dest.len, strerror(errno));
return 0;
}
return 0;
}
@@
-1146,8
+1151,8
@@
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",
-
inet_toa(add->dest.prefix
), add->dest.len, peer->name);
+ LOG(5, 0, 0, "Advertising route %s/%d to BGP peer %s\n",
+
fmtaddr(add->dest.prefix, 0
), add->dest.len, peer->name);
}
else
{
}
else
{