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[tcpip] Allow supported address families to be detected at runtime

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2015-09-01 16:18:32 +01:00
parent f6e1da5cbf
commit 8430642642
4 changed files with 12 additions and 8 deletions
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15
src/net/tcpip.c
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@@ -62,19 +62,18 @@ int tcpip_rx ( struct io_buffer *iobuf, struct net_device *netdev,
/**
* Find TCP/IP network-layer protocol
*
* @v st_dest Destination address
* @v sa_family Address family
* @ret tcpip_net TCP/IP network-layer protocol, or NULL if not found
*/
static struct tcpip_net_protocol *
tcpip_net_protocol ( struct sockaddr_tcpip *st_dest ) {
struct tcpip_net_protocol * tcpip_net_protocol ( sa_family_t sa_family ) {
struct tcpip_net_protocol *tcpip_net;
for_each_table_entry ( tcpip_net, TCPIP_NET_PROTOCOLS ) {
if ( tcpip_net->sa_family == st_dest->st_family )
if ( tcpip_net->sa_family == sa_family )
return tcpip_net;
}
DBG ( "Unrecognised TCP/IP address family %d\n", st_dest->st_family );
DBG ( "Unrecognised TCP/IP address family %d\n", sa_family );
return NULL;
}
@@ -95,7 +94,7 @@ int tcpip_tx ( struct io_buffer *iobuf, struct tcpip_protocol *tcpip_protocol,
struct tcpip_net_protocol *tcpip_net;
/* Hand off packet to the appropriate network-layer protocol */
tcpip_net = tcpip_net_protocol ( st_dest );
tcpip_net = tcpip_net_protocol ( st_dest->st_family );
if ( tcpip_net ) {
DBG ( "TCP/IP sending %s packet\n", tcpip_net->name );
return tcpip_net->tx ( iobuf, tcpip_protocol, st_src, st_dest,
@@ -116,7 +115,7 @@ struct net_device * tcpip_netdev ( struct sockaddr_tcpip *st_dest ) {
struct tcpip_net_protocol *tcpip_net;
/* Hand off to the appropriate network-layer protocol */
tcpip_net = tcpip_net_protocol ( st_dest );
tcpip_net = tcpip_net_protocol ( st_dest->st_family );
if ( tcpip_net )
return tcpip_net->netdev ( st_dest );
@@ -135,7 +134,7 @@ size_t tcpip_mtu ( struct sockaddr_tcpip *st_dest ) {
size_t mtu;
/* Find appropriate network-layer protocol */
tcpip_net = tcpip_net_protocol ( st_dest );
tcpip_net = tcpip_net_protocol ( st_dest->st_family );
if ( ! tcpip_net )
return 0;