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make "established" a different tcp flag match

Browse source 
add fragment handling
drop IP address from LOG macro (function)
This commit is contained in:
Brendan O'Dea 2004-11-29 02:17:17 +00:00
parent 80308e8838
commit 2f5b811429
16 changed files with 722 additions and 627 deletions
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92
bgp.c
View file

@ -10,7 +10,7 @@
* nor RFC2385 (which requires a kernel patch on 2.4 kernels).
*/
char const *cvs_id_bgp = "$Id: bgp.c,v 1.7 2004-11-15 06:49:56 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>
@ -69,7 +69,7 @@ int bgp_setup(int as)
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;
@ -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)
{
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;
@ -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)))
{
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;
@ -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);
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 */
@ -274,7 +274,7 @@ static void bgp_clear(struct bgp_peer *peer)
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));
}
}
@ -282,14 +282,14 @@ static void bgp_clear(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)
{
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);
}
@ -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))))
{
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;
}
@ -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;
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;
}
@ -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;
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;
}
@ -482,7 +482,7 @@ void bgp_enable_routing(int enable)
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
@ -588,7 +588,7 @@ int bgp_process(struct bgp_peer *peer, int readable, int writable)
{
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);
@ -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)
{
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);
@ -665,7 +665,7 @@ static int bgp_connect(struct bgp_peer *peer)
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;
}
@ -674,7 +674,7 @@ static int bgp_connect(struct bgp_peer *peer)
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;
@ -697,7 +697,7 @@ static int bgp_connect(struct bgp_peer *peer)
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);
@ -707,7 +707,7 @@ static int bgp_connect(struct bgp_peer *peer)
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;
}
@ -715,7 +715,7 @@ static int bgp_connect(struct bgp_peer *peer)
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);
}
@ -728,7 +728,7 @@ static int bgp_handle_connect(struct bgp_peer *peer)
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);
@ -738,7 +738,7 @@ static int bgp_handle_connect(struct bgp_peer *peer)
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);
}
@ -759,9 +759,9 @@ static int bgp_write(struct bgp_peer *peer)
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
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);
@ -774,7 +774,7 @@ static int bgp_write(struct bgp_peer *peer)
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;
@ -794,7 +794,7 @@ static int bgp_write(struct bgp_peer *peer)
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));
}
@ -811,7 +811,7 @@ static int bgp_read(struct bgp_peer *peer)
{
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
{
@ -821,7 +821,7 @@ static int bgp_read(struct bgp_peer *peer)
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));
}
@ -841,7 +841,7 @@ static int bgp_handle_input(struct bgp_peer *peer)
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;
}
@ -849,7 +849,7 @@ static int bgp_handle_input(struct bgp_peer *peer)
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)
@ -864,7 +864,7 @@ static int bgp_handle_input(struct bgp_peer *peer)
{
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,
@ -876,7 +876,7 @@ static int bgp_handle_input(struct bgp_peer *peer)
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);
@ -887,7 +887,7 @@ static int bgp_handle_input(struct bgp_peer *peer)
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);
@ -896,7 +896,7 @@ static int bgp_handle_input(struct bgp_peer *peer)
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);
@ -906,7 +906,7 @@ static int bgp_handle_input(struct bgp_peer *peer)
if ((hold = ntohs(data.hold_time)) < 3)
{
LOG(1, 0, 0, 0, "Bad hold time (%d) from BGP peer %s\n",
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);
@ -939,7 +939,7 @@ static int bgp_handle_input(struct bgp_peer *peer)
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;
@ -952,13 +952,13 @@ static int bgp_handle_input(struct bgp_peer *peer)
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 */
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);
}
@ -1077,8 +1077,8 @@ static int bgp_send_update(struct bgp_peer *peer)
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);
@ -1127,8 +1127,8 @@ static int bgp_send_update(struct bgp_peer *peer)
{
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;
}
@ -1151,8 +1151,8 @@ static int bgp_send_update(struct bgp_peer *peer)
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
{