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Allow an explicit network device to be specified for IP-layer

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This commit is contained in:
Michael Brown
2007-01-10 02:25:11 +00:00
parent 9869659895
commit f008b77ba2
7 changed files with 32 additions and 17 deletions
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10
src/include/gpxe/tcpip.h
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@@ -13,6 +13,7 @@
#include <gpxe/tables.h>
struct pk_buff;
struct net_device;
/** Empty checksum value
*
@@ -84,6 +85,7 @@ struct tcpip_net_protocol {
* @v pkb Packet buffer
* @v tcpip_protocol Transport-layer protocol
* @v st_dest Destination address
* @v netdev Network device (or NULL to route automatically)
* @v trans_csum Transport-layer checksum to complete, or NULL
* @ret rc Return status code
*
@@ -91,7 +93,9 @@ struct tcpip_net_protocol {
*/
int ( * tx ) ( struct pk_buff *pkb,
struct tcpip_protocol *tcpip_protocol,
struct sockaddr_tcpip *st_dest, uint16_t *trans_csum );
struct sockaddr_tcpip *st_dest,
struct net_device *netdev,
uint16_t *trans_csum );
};
/** Declare a TCP/IP transport-layer protocol */
@@ -104,7 +108,9 @@ extern int tcpip_rx ( struct pk_buff *pkb, uint8_t tcpip_proto,
struct sockaddr_tcpip *st_src,
struct sockaddr_tcpip *st_dest, uint16_t pshdr_csum );
extern int tcpip_tx ( struct pk_buff *pkb, struct tcpip_protocol *tcpip,
struct sockaddr_tcpip *st_dest, uint16_t *trans_csum );
struct sockaddr_tcpip *st_dest,
struct net_device *netdev,
uint16_t *trans_csum );
extern uint16_t tcpip_continue_chksum ( uint16_t partial,
const void *data, size_t len );
extern uint16_t tcpip_chksum ( const void *data, size_t len );