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Factorise out common code

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This commit is contained in:
Michael Brown 2006-06-26 16:01:24 +00:00
parent e517a4771b
commit b49de73950
1 changed files with 23 additions and 25 deletions
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48
src/net/ipv4.c
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@ -97,6 +97,27 @@ void del_ipv4_address ( struct net_device *netdev ) {
}
}
/**
* Dump IPv4 packet header
*
* @v iphdr IPv4 header
*/
static void ipv4_dump ( struct iphdr *iphdr __unused ) {
DBG ( "IP4 header at %p+%zx\n", iphdr, sizeof ( *iphdr ) );
DBG ( "\tVersion = %d\n", ( iphdr->verhdrlen & IP_MASK_VER ) / 16 );
DBG ( "\tHeader length = %d\n", iphdr->verhdrlen & IP_MASK_HLEN );
DBG ( "\tService = %d\n", iphdr->service );
DBG ( "\tTotal length = %d\n", iphdr->len );
DBG ( "\tIdent = %d\n", iphdr->ident );
DBG ( "\tFrags/Offset = %d\n", iphdr->frags );
DBG ( "\tIP TTL = %d\n", iphdr->ttl );
DBG ( "\tProtocol = %d\n", iphdr->protocol );
DBG ( "\tHeader Checksum (at %p) = %x\n", &iphdr->chksum,
iphdr->chksum );
DBG ( "\tSource = %s\n", inet_ntoa ( iphdr->src ) );
DBG ( "\tDestination = %s\n", inet_ntoa ( iphdr->dest ) );
}
/**
* Complete the transport-layer checksum
*
@ -271,19 +292,7 @@ int ipv4_tx ( struct pk_buff *pkb, uint16_t trans_proto, struct in_addr *dest )
ipv4_tx_csum ( pkb, trans_proto );
/* Print IP4 header for debugging */
DBG ( "IP4 header at %#x + %d\n", iphdr, IP_HLEN );
DBG ( "\tVersion = %d\n", ( iphdr->verhdrlen & IP_MASK_VER ) / 16 );
DBG ( "\tHeader length = %d\n", iphdr->verhdrlen & IP_MASK_HLEN );
DBG ( "\tService = %d\n", iphdr->service );
DBG ( "\tTotal length = %d\n", iphdr->len );
DBG ( "\tIdent = %d\n", iphdr->ident );
DBG ( "\tFrags/Offset = %d\n", iphdr->frags );
DBG ( "\tIP TTL = %d\n", iphdr->ttl );
DBG ( "\tProtocol = %d\n", iphdr->protocol );
DBG ( "\tHeader Checksum (at %#x) = %x\n", &iphdr->chksum, iphdr->chksum );
DBG ( "\tSource = %s\n", inet_ntoa ( iphdr->src) );
DBG ( "\tDestination = %s\n", inet_ntoa ( iphdr->dest ) );
ipv4_dump ( iphdr );
/* Determine link-layer destination address */
if ( next_hop.s_addr == INADDR_BROADCAST ) {
@ -370,18 +379,7 @@ void ipv4_rx ( struct pk_buff *pkb, struct net_device *netdev __unused,
uint16_t chksum;
/* Print IP4 header for debugging */
DBG ( "IP4 header at %#x + %d\n", iphdr, IP_HLEN );
DBG ( "\tVersion = %d\n", ( iphdr->verhdrlen & IP_MASK_VER ) / 16 );
DBG ( "\tHeader length = %d\n", iphdr->verhdrlen & IP_MASK_HLEN );
DBG ( "\tService = %d\n", iphdr->service );
DBG ( "\tTotal length = %d\n", iphdr->len );
DBG ( "\tIdent = %d\n", iphdr->ident );
DBG ( "\tFrags/Offset = %d\n", iphdr->frags );
DBG ( "\tIP TTL = %d\n", iphdr->ttl );
DBG ( "\tProtocol = %d\n", iphdr->protocol );
DBG ( "\tHeader Checksum (at %#x) = %x\n", &iphdr->chksum, iphdr->chksum );
DBG ( "\tSource = %s\n", inet_ntoa ( iphdr->src) );
DBG ( "\tDestination = %s\n", inet_ntoa ( iphdr->dest ) );
ipv4_dump ( iphdr );
/* Process headers */
if ( iphdr->verhdrlen != 0x45 ) {