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-rw-r--r--proto/rip/rip.c155
1 files changed, 107 insertions, 48 deletions
diff --git a/proto/rip/rip.c b/proto/rip/rip.c
index e65ac38..0f04f31 100644
--- a/proto/rip/rip.c
+++ b/proto/rip/rip.c
@@ -124,7 +124,8 @@ rip_tx_err( sock *s, int err )
static void
rip_tx( sock *s )
{
- struct rip_connection *c = s->data;
+ struct rip_interface *rif = s->data;
+ struct rip_connection *c = rif->busy;
struct proto *p = c->proto;
struct rip_packet *packet = (void *) s->tbuf;
int i, done = 0;
@@ -134,8 +135,11 @@ givemore:
debug( "Preparing packet to send: " );
if (!(NODE c->sendptr)->next) {
- debug( "Looks like I'm done\n" );
- /* FIXME: we have to kill that socket & connection NOW! */
+ debug( "Looks like I'm" );
+ c->rif->busy = NULL;
+ rem_node(NODE c);
+ mb_free(c);
+ debug( "done\n" );
return;
}
@@ -152,7 +156,7 @@ givemore:
packet->block[i].network = c->sendptr->network;
packet->block[i].netmask = ipa_mkmask( c->sendptr->pxlen );
packet->block[i].nexthop = IPA_NONE; /* FIXME: How should I set it? */
- packet->block[i].metric = htonl( c->sendptr->metric?:1 );
+ packet->block[i].metric = htonl( 1+ (c->sendptr->metric?:1) );
if (ipa_equal(c->sendptr->whotoldme, s->daddr)) {
debug( "(split horizont)" );
/* FIXME: should we do it in all cases? */
@@ -167,7 +171,10 @@ givemore:
debug( ", sending %d blocks, ", i );
- i = sk_send( s, sizeof( struct rip_packet_heading ) + i*sizeof( struct rip_block ) );
+ if (ipa_nonzero(c->daddr))
+ i = sk_send_to( s, sizeof( struct rip_packet_heading ) + i*sizeof( struct rip_block ), c->daddr, c->dport );
+ else
+ i = sk_send( s, sizeof( struct rip_packet_heading ) + i*sizeof( struct rip_block ) );
if (i<0) rip_tx_err( s, i );
if (i>0) {
debug( "it wants more\n" );
@@ -178,38 +185,39 @@ givemore:
}
static void
-rip_sendto( struct proto *p, ip_addr daddr, int dport, struct iface *iface )
+rip_sendto( struct proto *p, ip_addr daddr, int dport, struct rip_interface *rif )
{
+ struct iface *iface = rif->iface;
struct rip_connection *c = mb_alloc( p->pool, sizeof( struct rip_connection ));
static int num = 0;
- /* FIXME: maybe we should not send when we are already sending? */
+ if (rif->busy) {
+ log (L_WARN "Interface %s is much too slow, dropping request\n", iface->name);
+ return;
+ }
+ rif->busy = c;
c->addr = daddr;
c->proto = p;
c->num = num++;
+ c->rif = rif;
- c->send = sk_new( p->pool );
- c->send->type = SK_UDP;
- c->send->sport = RIP_PORT+1; /* BIG FIXME: have to talk from RIP_PORT */
- c->send->dport = dport;
- c->send->daddr = daddr;
- c->send->rx_hook = NULL;
- c->send->tx_hook = rip_tx;
- c->send->err_hook = rip_tx_err;
- c->send->data = c;
- c->send->iface = iface;
- c->send->tbuf = mb_alloc( p->pool, sizeof( struct rip_packet ));
+ c->dport = dport;
+ c->daddr = daddr;
+ if (c->rif->sock->data != rif)
+ die("not enough send magic\n");
+#if 0
if (sk_open(c->send)<0) {
- log( L_ERR "Could not open socket for data send to %I:%d\n", daddr, dport );
+ log( L_ERR "Could not open socket for data send to %I:%d on %s\n", daddr, dport, rif->iface->name );
return;
}
+#endif
c->sendptr = HEAD( P->rtable );
add_head( &P->connections, NODE c );
- debug( "Sending my routing table to %I:%d\n", daddr, dport );
+ debug( "Sending my routing table to %I:%d on %s\n", daddr, dport, rif->iface->name );
- rip_tx( c->send );
+ rip_tx(c->rif->sock);
}
/*
@@ -232,7 +240,6 @@ advertise_entry( struct proto *p, struct rip_block *b, ip_addr whotoldme )
net *n;
neighbor *neighbor;
- debug( "rip: Advertising entry..." );
bzero(&A, sizeof(A));
A.proto = p;
A.source = RTS_RIP;
@@ -305,7 +312,7 @@ rip_process_packet( struct proto *p, struct rip_packet *packet, int num, ip_addr
case RIPCMD_REQUEST: debug( "Asked to send my routing table\n" );
rip_sendto( p, whotoldme, port, NULL ); /* no broadcast */
break;
- case RIPCMD_RESPONSE: debug( "*** Part of routing table came from %I\n", whotoldme );
+ case RIPCMD_RESPONSE: debug( "*** Rtable from %I\n", whotoldme );
if (port != RIP_PORT) {
log( L_ERR "%I send me routing info from port %d\n", whotoldme, port );
#if 0
@@ -352,7 +359,8 @@ rip_process_packet( struct proto *p, struct rip_packet *packet, int num, ip_addr
static int
rip_rx(sock *s, int size)
{
- struct proto *p = s->data;
+ struct rip_interface *i = s->data;
+ struct proto *p = i->proto;
int num;
CHK_MAGIC;
@@ -402,22 +410,15 @@ rip_timer(timer *t)
debug( "RIP: Broadcasting routing tables\n" );
{
- struct iface *iface;
+ struct rip_interface *i;
+
+ WALK_LIST( i, P->interfaces ) {
+ struct iface *iface = i->iface;
- /* FIXME: needs to be configured */
- WALK_LIST( iface, iface_list ) {
if (!(iface->flags & IF_UP)) continue;
if (iface->flags & (IF_IGNORE | IF_LOOPBACK)) continue;
- if (iface->flags & IF_BROADCAST) {
- rip_sendto( p, iface->brd, RIP_PORT, iface );
- continue;
- }
- if (iface->flags & IF_UNNUMBERED) {
- rip_sendto( p, iface->opposite, RIP_PORT, NULL );
- continue;
- }
- debug( "RIP/send: can not happen\n" );
+ rip_sendto( p, IPA_NONE, 0, i );
}
}
@@ -429,18 +430,11 @@ rip_start(struct proto *p)
{
debug( "RIP: initializing instance...\n" );
- P->listen = sk_new( p->pool );
- P->listen->type = SK_UDP;
- P->listen->sport = RIP_PORT;
- P->listen->rx_hook = rip_rx;
- P->listen->data = p;
- P->listen->rbsize = 10240;
P->magic = RIP_MAGIC;
- if (sk_open(P->listen)<0)
- die( "RIP/%s: could not listen\n", p->name );
init_list( &P->rtable );
init_list( &P->connections );
init_list( &P->garbage );
+ init_list( &P->interfaces );
P->timer = tm_new( p->pool );
P->timer->data = p;
P->timer->randomize = 5;
@@ -463,6 +457,7 @@ rip_dump(struct proto *p)
{
int i;
node *w, *e;
+ struct rip_interface *rif;
i = 0;
WALK_LIST( w, P->connections ) {
struct rip_connection *n = (void *) w;
@@ -473,23 +468,89 @@ rip_dump(struct proto *p)
debug( "RIP: entry #%d: ", i++ );
rip_dump_entry( E );
}
+ i = 0;
+ WALK_LIST( rif, P->interfaces ) {
+ debug( "RIP: interface #%d: %s, %I, busy = %x\n", i++, rif->iface->name, rif->sock->daddr, rif->busy );
+ }
+}
+
+static int
+rip_want_this_if(struct rip_interface *iface)
+{
+ return 1;
+}
+
+static void
+kill_iface(struct proto *p, struct rip_interface *i)
+{
+ debug( "RIP: Interface %s disappeared\n", i->iface->name);
+ rfree(i->sock);
+ mb_free(i);
+}
+
+struct rip_interface *
+new_iface(struct proto *p, struct iface *new)
+{
+ struct rip_interface *i;
+ debug( "RIP: New interface %s here\n", new->name);
+ i = mb_alloc(p->pool, sizeof( struct rip_interface ));
+ i->iface = new;
+ i->proto = p;
+
+ i->sock = sk_new( p->pool );
+ i->sock->type = SK_UDP;
+ i->sock->sport = RIP_PORT;
+ i->sock->rx_hook = rip_rx;
+ i->sock->data = i;
+ i->sock->rbsize = 10240;
+ i->sock->iface = new;
+ i->sock->tbuf = mb_alloc( p->pool, sizeof( struct rip_packet ));
+ i->sock->tx_hook = rip_tx;
+ i->sock->err_hook = rip_tx_err;
+ i->sock->daddr = IPA_NONE;
+ i->sock->dport = RIP_PORT;
+
+ if (new->flags & IF_BROADCAST)
+ i->sock->daddr = new->brd;
+ if (new->flags & IF_UNNUMBERED)
+ i->sock->daddr = new->opposite;
+
+ if (!ipa_nonzero(i->sock->daddr))
+ log( L_WARN "RIP: interface %s is too strange for me\n", i->iface->name );
+
+ if (sk_open(i->sock)<0)
+ die( "RIP/%s: could not listen on %s\n", p->name, i->iface->name );
+
+ return i;
}
static void
rip_if_notify(struct proto *p, unsigned c, struct iface *old, struct iface *new)
{
+ debug( "RIP: if notify\n" );
+ if (old) {
+ struct rip_interface *i;
+ WALK_LIST (i, P->interfaces)
+ if (i->iface == old) {
+ rem_node(NODE i);
+ kill_iface(p, i);
+ }
+ }
+ if (new) {
+ struct rip_interface *i;
+ i = new_iface(p, new);
+ add_head( &P->interfaces, NODE i );
+ }
}
static void
rip_rt_notify(struct proto *p, struct network *net, struct rte *new, struct rte *old)
{
- debug( "rip: new entry came: " );
CHK_MAGIC;
if (old) {
struct rip_entry *e = find_entry( p, net->n.prefix, net->n.pxlen );
- debug( "deleting old\n" );
if (!e)
log( L_ERR "Deleting nonexistent entry?!\n" );
@@ -499,7 +560,6 @@ rip_rt_notify(struct proto *p, struct network *net, struct rte *new, struct rte
if (new) {
struct rip_entry *e = new_entry( p );
- debug( "inserting new\n" );
e->network = net->n.prefix;
e->pxlen = net->n.pxlen;
e->nexthop = new->attrs->gw;
@@ -532,7 +592,6 @@ rip_rte_better(struct rte *new, struct rte *old)
static int
rip_rta_same(rta *a, rta *b)
{
- debug( "RIP: they ask me if rta_same\n" );
/* As we have no specific data in rta, they are always the same */
return 1;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 22:04:59 +0100