Endianity problem fixed. Thanx to Sörös József

1 files changed, 151 insertions, 141 deletions

diff --git a/proto/ospf/packet.c b/proto/ospf/packet.c
index 5f2d628..750f3a3 100644
--- a/proto/ospf/packet.c
+++ b/proto/ospf/packet.c
@@ -1,7 +1,7 @@
 /*
  *	BIRD -- OSPF
  *
- *	(c) 1999 - 2000 Ondrej Filip <feela@network.cz>
+ *	(c) 1999 - 2003 Ondrej Filip <feela@network.cz>
  *
  *	Can be freely distributed and used under the terms of the GNU GPL.
  */
@@ -9,60 +9,65 @@
 #include "ospf.h"
 
 void
-fill_ospf_pkt_hdr(struct ospf_iface *ifa, void *buf, u8 h_type)
+fill_ospf_pkt_hdr (struct ospf_iface *ifa, void *buf, u8 h_type)
 {
   struct ospf_packet *pkt;
   struct proto *p;
-  
-  p=(struct proto *)(ifa->proto);
 
-  pkt=(struct ospf_packet *)buf;
+  p = (struct proto *) (ifa->proto);
 
-  pkt->version=OSPF_VERSION;
+  pkt = (struct ospf_packet *) buf;
 
-  pkt->type=h_type;
+  pkt->version = OSPF_VERSION;
 
-  pkt->routerid=htonl(p->cf->global->router_id);
-  pkt->areaid=htonl(ifa->an);
-  pkt->autype=htons(ifa->autype);
-  pkt->checksum=0;
+  pkt->type = h_type;
+
+  pkt->routerid = htonl (p->cf->global->router_id);
+  pkt->areaid = htonl (ifa->an);
+  pkt->autype = htons (ifa->autype);
+  pkt->checksum = 0;
 }
 
 void
-ospf_tx_authenticate(struct ospf_iface *ifa, struct ospf_packet *pkt)
+ospf_tx_authenticate (struct ospf_iface *ifa, struct ospf_packet *pkt)
 {
   int i;
-  pkt->autype=ifa->autype;
-  memcpy(pkt->authetication, ifa->aukey, 8);
+  pkt->autype = htons (ifa->autype);
+  memcpy (pkt->authetication, ifa->aukey, 8);
   return;
 }
 
 int
-ospf_rx_authenticate(struct ospf_iface *ifa, struct ospf_packet *pkt)
+ospf_rx_authenticate (struct ospf_iface *ifa, struct ospf_packet *pkt)
 {
   int i;
-  if(pkt->autype!=ifa->autype) return 0;
-  if(ifa->autype==AU_NONE) return 1;
-  if(ifa->autype==AU_SIMPLE)
-  {
-    for(i=0;i<8;i++)
+  if (pkt->autype != htons (ifa->autype))
+    return 0;
+  if (ifa->autype == AU_NONE)
+    return 1;
+  if (ifa->autype == AU_SIMPLE)
     {
-      if(pkt->authetication[i]!=ifa->aukey[i]) return 0;
+      for (i = 0; i < 8; i++)
+	{
+	  if (pkt->authetication[i] != ifa->aukey[i])
+	    return 0;
+	}
+      return 1;
     }
-    return 1;
-  }
   return 0;
 }
 
 void
-ospf_pkt_finalize(struct ospf_iface *ifa, struct ospf_packet *pkt)
+ospf_pkt_finalize (struct ospf_iface *ifa, struct ospf_packet *pkt)
 {
 
-  ospf_tx_authenticate(ifa, pkt);
+  ospf_tx_authenticate (ifa, pkt);
 
   /* Count checksum */
-  pkt->checksum=ipsum_calculate(pkt,sizeof(struct ospf_packet)-8,
-    (pkt+1),ntohs(pkt->length)-sizeof(struct ospf_packet),NULL);
+  pkt->checksum = ipsum_calculate (pkt, sizeof (struct ospf_packet) - 8,
+				   (pkt + 1),
+				   ntohs (pkt->length) -
+				   sizeof (struct ospf_packet), NULL);
 }
 
 /**
@@ -75,166 +80,171 @@ ospf_pkt_finalize(struct ospf_iface *ifa, struct ospf_packet *pkt)
  * non generic functions.
  */
 int
-ospf_rx_hook(sock *sk, int size)
+ospf_rx_hook (sock * sk, int size)
 {
 #ifndef IPV6
   struct ospf_packet *ps;
-  struct ospf_iface *ifa=(struct ospf_iface *)(sk->data);
-  struct proto *p=(struct proto *)(ifa->proto);
+  struct ospf_iface *ifa = (struct ospf_iface *) (sk->data);
+  struct proto *p = (struct proto *) (ifa->proto);
   int i;
   u8 *pu8;
 
-  if(ifa->stub) return(1);
-
-  DBG("%s: RX_Hook called on interface %s.\n",p->name, sk->iface->name);
-
-  ps = (struct ospf_packet *) ipv4_skip_header(sk->rbuf, &size);
-  if(ps==NULL)
-  {
-    log("%s: Bad OSPF packet received: bad IP header", p->name);
-    log("%s: Discarding",p->name);
-    return(1);
-  }
-  
-  if((unsigned)size < sizeof(struct ospf_packet))
-  {
-    log("%s: Bad OSPF packet received: too short (%u bytes)", p->name, size);
-    log("%s: Discarding",p->name);
-    return(1);
-  }
-
-  if((ntohs(ps->length)!=size)||(size!=(4*(size/4))))
-  {
-    log("%s: Bad OSPF packet received: size field does not match", p->name);
-    log("%s: Discarding",p->name);
-    return(1);
-  }
-
-  if(ps->version!=OSPF_VERSION)
-  {
-    log("%s: Bad OSPF packet received: version %u", p->name, ps->version);
-    log("%s: Discarding",p->name);
-    return(1);
-  }
-
-  if(!ipsum_verify(ps, 16,(void *)ps+sizeof(struct ospf_packet),
-    ntohs(ps->length)-sizeof(struct ospf_packet), NULL))
-  {
-    log("%s: Bad OSPF packet received: bad checksum", p->name);
-    log("%s: Discarding",p->name);
-    return(1);
-  }
-
-  if(!ospf_rx_authenticate(ifa,ps))
-  {
-    log("%s: Bad OSPF packet received: bad password", p->name);
-    return(1);
-  }
-
-  if(ntohl(ps->areaid)!=ifa->an)
-  {
-    log("%s: Bad OSPF packet received: other area %ld", p->name, ps->areaid);
-    log("%s: Discarding",p->name);
-    return(1);
-  }
-
-  if(ntohl(ps->routerid)==p->cf->global->router_id)
-  {
-    log("%s: Bad OSPF packet received: received my own router ID!", p->name);
-    log("%s: Discarding",p->name);
-    return(1);
-  }
-
-  if(ntohl(ps->routerid)==0)
-  {
-    log("%s: Bad OSPF packet received: Id 0.0.0.0 is not allowed.", p->name);
-    log("%s: Discarding",p->name);
-    return(1);
-  }
-  
+  if (ifa->stub)
+    return (1);
+
+  DBG ("%s: RX_Hook called on interface %s.\n", p->name, sk->iface->name);
+
+  ps = (struct ospf_packet *) ipv4_skip_header (sk->rbuf, &size);
+  if (ps == NULL)
+    {
+      log ("%s: Bad OSPF packet received: bad IP header", p->name);
+      log ("%s: Discarding", p->name);
+      return (1);
+    }
+
+  if ((unsigned) size < sizeof (struct ospf_packet))
+    {
+      log ("%s: Bad OSPF packet received: too short (%u bytes)", p->name,
+	   size);
+      log ("%s: Discarding", p->name);
+      return (1);
+    }
+
+  if ((ntohs (ps->length) != size) || (size != (4 * (size / 4))))
+    {
+      log ("%s: Bad OSPF packet received: size field does not match",
+	   p->name);
+      log ("%s: Discarding", p->name);
+      return (1);
+    }
+
+  if (ps->version != OSPF_VERSION)
+    {
+      log ("%s: Bad OSPF packet received: version %u", p->name, ps->version);
+      log ("%s: Discarding", p->name);
+      return (1);
+    }
+
+  if (!ipsum_verify (ps, 16, (void *) ps + sizeof (struct ospf_packet),
+		     ntohs (ps->length) - sizeof (struct ospf_packet), NULL))
+    {
+      log ("%s: Bad OSPF packet received: bad checksum", p->name);
+      log ("%s: Discarding", p->name);
+      return (1);
+    }
+
+  if (!ospf_rx_authenticate (ifa, ps))
+    {
+      log ("%s: Bad OSPF packet received: bad password", p->name);
+      return (1);
+    }
+
+  if (ntohl (ps->areaid) != ifa->an)
+    {
+      log ("%s: Bad OSPF packet received: other area %ld", p->name,
+	   ps->areaid);
+      log ("%s: Discarding", p->name);
+      return (1);
+    }
+
+  if (ntohl (ps->routerid) == p->cf->global->router_id)
+    {
+      log ("%s: Bad OSPF packet received: received my own router ID!",
+	   p->name);
+      log ("%s: Discarding", p->name);
+      return (1);
+    }
+
+  if (ntohl (ps->routerid) == 0)
+    {
+      log ("%s: Bad OSPF packet received: Id 0.0.0.0 is not allowed.",
+	   p->name);
+      log ("%s: Discarding", p->name);
+      return (1);
+    }
+
   /* Dump packet 
-  pu8=(u8 *)(sk->rbuf+5*4);
-  for(i=0;i<ntohs(ps->length);i+=4)
-    DBG("%s: received %u,%u,%u,%u\n",p->name, pu8[i+0], pu8[i+1], pu8[i+2],
-		    pu8[i+3]);
-  DBG("%s: received size: %u\n",p->name,size);
-  */
-
-  switch(ps->type)
-  {
+     pu8=(u8 *)(sk->rbuf+5*4);
+     for(i=0;i<ntohs(ps->length);i+=4)
+     DBG("%s: received %u,%u,%u,%u\n",p->name, pu8[i+0], pu8[i+1], pu8[i+2],
+     pu8[i+3]);
+     DBG("%s: received size: %u\n",p->name,size);
+   */
+
+  switch (ps->type)
+    {
     case HELLO_P:
-      DBG("%s: Hello received.\n", p->name);
-      ospf_hello_rx((struct ospf_hello_packet *)ps, p, ifa, size, sk->faddr);
+      DBG ("%s: Hello received.\n", p->name);
+      ospf_hello_rx ((struct ospf_hello_packet *) ps, p, ifa, size,
+		     sk->faddr);
       break;
     case DBDES_P:
-      DBG("%s: Database description received.\n", p->name);
-      ospf_dbdes_rx((struct ospf_dbdes_packet *)ps, p, ifa, size);
+      DBG ("%s: Database description received.\n", p->name);
+      ospf_dbdes_rx ((struct ospf_dbdes_packet *) ps, p, ifa, size);
       break;
     case LSREQ_P:
-      DBG("%s: Link state request received.\n", p->name);
-      ospf_lsreq_rx((struct ospf_lsreq_packet *)ps, p, ifa, size);
+      DBG ("%s: Link state request received.\n", p->name);
+      ospf_lsreq_rx ((struct ospf_lsreq_packet *) ps, p, ifa, size);
       break;
     case LSUPD_P:
-      DBG("%s: Link state update received.\n", p->name);
-      ospf_lsupd_rx((struct ospf_lsupd_packet *)ps, p, ifa, size);
+      DBG ("%s: Link state update received.\n", p->name);
+      ospf_lsupd_rx ((struct ospf_lsupd_packet *) ps, p, ifa, size);
       break;
     case LSACK_P:
-      DBG("%s: Link state ack received.\n", p->name);
-      ospf_lsack_rx((struct ospf_lsack_packet *)ps, p, ifa, size);
+      DBG ("%s: Link state ack received.\n", p->name);
+      ospf_lsack_rx ((struct ospf_lsack_packet *) ps, p, ifa, size);
       break;
     default:
-      log("%s: Bad packet received: wrong type %u", p->name, ps->type);
-      log("%s: Discarding\n",p->name);
-      return(1);
-  };
+      log ("%s: Bad packet received: wrong type %u", p->name, ps->type);
+      log ("%s: Discarding\n", p->name);
+      return (1);
+    };
 #else
 #error RX_Hook does not work for IPv6 now.
 #endif
-  return(1);
+  return (1);
 }
 
 void
-ospf_tx_hook(sock *sk)
+ospf_tx_hook (sock * sk)
 {
   struct ospf_iface *ifa;
   struct proto *p;
 
-  ifa=(struct ospf_iface *)(sk->data);
+  ifa = (struct ospf_iface *) (sk->data);
 
-  p=(struct proto *)(ifa->proto);
-  DBG("%s: TX_Hook called on interface %s\n", p->name,sk->iface->name);
+  p = (struct proto *) (ifa->proto);
+  DBG ("%s: TX_Hook called on interface %s\n", p->name, sk->iface->name);
 }
 
 void
-ospf_err_hook(sock *sk, int err)
+ospf_err_hook (sock * sk, int err)
 {
   struct ospf_iface *ifa;
   struct proto *p;
 
-  ifa=(struct ospf_iface *)(sk->data);
+  ifa = (struct ospf_iface *) (sk->data);
 
-  p=(struct proto *)(ifa->proto);
-  DBG("%s: Err_Hook called on interface %s\n", p->name,sk->iface->name);
+  p = (struct proto *) (ifa->proto);
+  DBG ("%s: Err_Hook called on interface %s\n", p->name, sk->iface->name);
 }
 
 void
-sk_send_to_agt(sock *sk, u16 len, struct ospf_iface *ifa, u8 state)
+sk_send_to_agt (sock * sk, u16 len, struct ospf_iface *ifa, u8 state)
 {
   struct ospf_neighbor *n;
 
-  WALK_LIST(NODE n,ifa->neigh_list)
-    if(n->state>=state)
-      sk_send_to(sk, len, n->ip, OSPF_PROTO);
-}                                                                       
+  WALK_LIST (NODE n, ifa->neigh_list) if (n->state >= state)
+    sk_send_to (sk, len, n->ip, OSPF_PROTO);
+}
 
 void
-sk_send_to_bdr(sock *sk, u16 len, struct ospf_iface *ifa)
+sk_send_to_bdr (sock * sk, u16 len, struct ospf_iface *ifa)
 {
   struct ospf_neighbor *n;
 
-  if(ipa_compare(ifa->drip,ipa_from_u32(0))!=0)
-    sk_send_to(sk, len, ifa->drip, OSPF_PROTO);
-  if(ipa_compare(ifa->bdrip,ipa_from_u32(0))!=0)
-    sk_send_to(sk, len, ifa->bdrip, OSPF_PROTO);
+  if (ipa_compare (ifa->drip, ipa_from_u32 (0)) != 0)
+    sk_send_to (sk, len, ifa->drip, OSPF_PROTO);
+  if (ipa_compare (ifa->bdrip, ipa_from_u32 (0)) != 0)
+    sk_send_to (sk, len, ifa->bdrip, OSPF_PROTO);
 }
-