/**
* Reset the network device
*
* @v snp SNP interface
* @v ext_verify Extended verification required
* @ret efirc EFI status code
*/
static EFI_STATUS EFIAPI
efi_snp_reset ( EFI_SIMPLE_NETWORK_PROTOCOL *snp, BOOLEAN ext_verify ) {
struct efi_snp_device *snpdev =
container_of ( snp, struct efi_snp_device, snp );
int rc;
DBGC2 ( snpdev, "SNPDEV %p RESET (%s extended verification)\n",
snpdev, ( ext_verify ? "with" : "without" ) );
/* Fail if net device is currently claimed for use by iPXE */
if ( efi_snp_claimed )
return EFI_NOT_READY;
netdev_close ( snpdev->netdev );
efi_snp_set_state ( snpdev );
if ( ( rc = netdev_open ( snpdev->netdev ) ) != 0 ) {
DBGC ( snpdev, "SNPDEV %p could not reopen %s: %s\n",
snpdev, snpdev->netdev->name, strerror ( rc ) );
return EFIRC ( rc );
}
efi_snp_set_state ( snpdev );
return 0;
}
/**
* Close PXE network device
*
*/
static void pxe_netdev_close ( void ) {
assert ( pxe_netdev != NULL );
netdev_rx_unfreeze ( pxe_netdev );
netdev_irq ( pxe_netdev, 0 );
netdev_close ( pxe_netdev );
undi_tx_count = 0;
}
/**
* Shut down the network device
*
* @v snp SNP interface
* @ret efirc EFI status code
*/
static EFI_STATUS EFIAPI
efi_snp_shutdown ( EFI_SIMPLE_NETWORK_PROTOCOL *snp ) {
struct efi_snp_device *snpdev =
container_of ( snp, struct efi_snp_device, snp );
DBGC2 ( snpdev, "SNPDEV %p SHUTDOWN\n", snpdev );
netdev_close ( snpdev->netdev );
snpdev->mode.State = EfiSimpleNetworkStarted;
return 0;
}
static void
discovery_local_port_cb(const struct ofp_port *port, void *d_)
{
struct discovery *d = d_;
if (port) {
char name[OFP_MAX_PORT_NAME_LEN + 1];
struct netdev *netdev;
int retval;
/* Check that this was really a change. */
get_port_name(port, name, sizeof name);
if (d->dhcp && !strcmp(netdev_get_name(dhclient_get_netdev(d->dhcp)),
name)) {
return;
}
/* Destroy current DHCP client. */
dhclient_destroy(d->dhcp);
d->dhcp = NULL;
/* Bring local network device up. */
retval = netdev_open(name, NETDEV_ETH_TYPE_NONE, &netdev);
if (retval) {
VLOG_ERR(LOG_MODULE, "Could not open %s device, discovery disabled: %s",
name, strerror(retval));
return;
}
retval = netdev_turn_flags_on(netdev, NETDEV_UP, true);
if (retval) {
VLOG_ERR(LOG_MODULE, "Could not bring %s device up, discovery disabled: %s",
name, strerror(retval));
return;
}
netdev_close(netdev);
/* Initialize DHCP client. */
retval = dhclient_create(name, modify_dhcp_request,
validate_dhcp_offer, (void *) d->s, &d->dhcp);
if (retval) {
VLOG_ERR(LOG_MODULE, "Failed to initialize DHCP client, "
"discovery disabled: %s", strerror(retval));
return;
}
dhclient_set_max_timeout(d->dhcp, 3);
dhclient_init(d->dhcp, 0);
} else {
dhclient_destroy(d->dhcp);
d->dhcp = NULL;
}
}
/**
* Execute "dhcp" command for a network device
*
* @v netdev Network device
* @ret rc Exit code
*/
static int dhcp_exec_netdev ( struct net_device *netdev ) {
int rc;
if ( ( rc = dhcp ( netdev ) ) != 0 ) {
printf ( "Could not configure %s: %s\n",
netdev->name, strerror ( rc ) );
/* Close device on failure, to avoid memory exhaustion */
netdev_close ( netdev );
return 1;
}
return 0;
}
/**
* Shut down the network device
*
* @v snp SNP interface
* @ret efirc EFI status code
*/
static EFI_STATUS EFIAPI
efi_snp_shutdown ( EFI_SIMPLE_NETWORK_PROTOCOL *snp ) {
struct efi_snp_device *snpdev =
container_of ( snp, struct efi_snp_device, snp );
DBGC2 ( snpdev, "SNPDEV %p SHUTDOWN\n", snpdev );
/* Fail if net device is currently claimed for use by iPXE */
if ( efi_snp_claimed )
return EFI_NOT_READY;
netdev_close ( snpdev->netdev );
efi_snp_set_state ( snpdev );
return 0;
}
/**
* Reset the network device
*
* @v snp SNP interface
* @v ext_verify Extended verification required
* @ret efirc EFI status code
*/
static EFI_STATUS EFIAPI
efi_snp_reset ( EFI_SIMPLE_NETWORK_PROTOCOL *snp, BOOLEAN ext_verify ) {
struct efi_snp_device *snpdev =
container_of ( snp, struct efi_snp_device, snp );
int rc;
DBGC2 ( snpdev, "SNPDEV %p RESET (%s extended verification)\n",
snpdev, ( ext_verify ? "with" : "without" ) );
netdev_close ( snpdev->netdev );
snpdev->mode.State = EfiSimpleNetworkStarted;
if ( ( rc = netdev_open ( snpdev->netdev ) ) != 0 ) {
DBGC ( snpdev, "SNPDEV %p could not reopen %s: %s\n",
snpdev, snpdev->netdev->name, strerror ( rc ) );
return RC_TO_EFIRC ( rc );
}
snpdev->mode.State = EfiSimpleNetworkInitialized;
return 0;
}
/**
* Close network device
*
* @v netdev Network device
*/
void ifclose ( struct net_device *netdev ) {
netdev_close ( netdev );
}
/**
* Close PXE network device
*
*/
static void pxe_netdev_close ( void ) {
netdev_irq ( pxe_netdev, 0 );
netdev_close ( pxe_netdev );
undi_tx_count = 0;
}