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[rndis] Send RNDIS_HALT_MSG 

The RNDIS specification requires that we send RNDIS_HALT_MSG.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/33/head
Michael Brown 2014-12-19 18:09:04 +00:00
parent 1d0ade42db
commit 4de0e273a7
2 changed files with 59 additions and 1 deletions
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2
src/include/ipxe/rndis.h
View File

@ -88,7 +88,7 @@ struct rndis_initialise_completion {
} __attribute__ (( packed )); } __attribute__ (( packed ));
/** RNDIS halt message */ /** RNDIS halt message */
#define RNIS_HALT_MSG 0x00000003UL #define RNDIS_HALT_MSG 0x00000003UL
/** RNDIS halt message */ /** RNDIS halt message */
struct rndis_halt_message { struct rndis_halt_message {

58
src/net/rndis.c
View File

@ -367,6 +367,56 @@ static int rndis_initialise ( struct rndis_device *rndis ) {
return 0; return 0;
} }
/**
* Transmit halt message
*
* @v rndis RNDIS device
* @ret rc Return status code
*/
static int rndis_tx_halt ( struct rndis_device *rndis ) {
struct io_buffer *iobuf;
struct rndis_halt_message *msg;
int rc;
/* Allocate I/O buffer */
iobuf = rndis_alloc_iob ( sizeof ( *msg ) );
if ( ! iobuf ) {
rc = -ENOMEM;
goto err_alloc;
}
/* Construct message */
msg = iob_put ( iobuf, sizeof ( *msg ) );
memset ( msg, 0, sizeof ( *msg ) );
/* Transmit message */
if ( ( rc = rndis_tx_message ( rndis, iobuf, RNDIS_HALT_MSG ) ) != 0 )
goto err_tx;
return 0;
err_tx:
free_iob ( iobuf );
err_alloc:
return rc;
}
/**
* Halt RNDIS
*
* @v rndis RNDIS device
* @ret rc Return status code
*/
static int rndis_halt ( struct rndis_device *rndis ) {
int rc;
/* Transmit halt message */
if ( ( rc = rndis_tx_halt ( rndis ) ) != 0 )
return rc;
return 0;
}
/** /**
* Transmit OID message * Transmit OID message
* *
@ -822,6 +872,7 @@ static int rndis_open ( struct net_device *netdev ) {
err_query_link: err_query_link:
err_set_filter: err_set_filter:
rndis_halt ( rndis );
err_initialise: err_initialise:
rndis->op->close ( rndis ); rndis->op->close ( rndis );
err_open: err_open:
@ -836,6 +887,9 @@ static int rndis_open ( struct net_device *netdev ) {
static void rndis_close ( struct net_device *netdev ) { static void rndis_close ( struct net_device *netdev ) {
struct rndis_device *rndis = netdev->priv; struct rndis_device *rndis = netdev->priv;
/* Halt RNDIS device */
rndis_halt ( rndis );
/* Close RNDIS device */ /* Close RNDIS device */
rndis->op->close ( rndis ); rndis->op->close ( rndis );
} }
@ -947,6 +1001,9 @@ int register_rndis ( struct rndis_device *rndis ) {
NULL, 0 ) ) != 0 ) NULL, 0 ) ) != 0 )
goto err_query_link; goto err_query_link;
/* Halt RNDIS device */
rndis_halt ( rndis );
/* Close RNDIS device */ /* Close RNDIS device */
rndis->op->close ( rndis ); rndis->op->close ( rndis );
@ -955,6 +1012,7 @@ int register_rndis ( struct rndis_device *rndis ) {
err_query_link: err_query_link:
err_query_current: err_query_current:
err_query_permanent: err_query_permanent:
rndis_halt ( rndis );
err_initialise: err_initialise:
rndis->op->close ( rndis ); rndis->op->close ( rndis );
err_open: err_open: