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efi: Use device device path type Messaging for network interface node

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When adding network interface node use Messaging device path with
subtype MAC Address and device's MAC address as a value instead
of Media Device path type with subtype File Path and path "Net"

Signed-off-by: Oleksandr Tymoshenko <gonzo@bluezbox.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Oleksandr Tymoshenko 2016-10-24 10:47:01 -07:00 committed by Alexander Graf
parent 456ca6ba04
commit d7608aba38
2 changed files with 22 additions and 8 deletions
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13
include/efi_api.h
View File

@ -268,6 +268,19 @@ struct efi_device_path {
u16 length;
};
struct efi_mac_addr {
u8 addr[32];
};
#define DEVICE_PATH_TYPE_MESSAGING_DEVICE 0x03
# define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR 0x0b
struct efi_device_path_mac_addr {
struct efi_device_path dp;
struct efi_mac_addr mac;
u8 if_type;
};
#define DEVICE_PATH_TYPE_MEDIA_DEVICE 0x04
# define DEVICE_PATH_SUB_TYPE_FILE_PATH 0x04

17
lib/efi_loader/efi_net.c
View File

@ -27,7 +27,8 @@ struct efi_net_obj {
struct efi_simple_network net;
struct efi_simple_network_mode net_mode;
/* Device path to the network adapter */
struct efi_device_path_file_path dp[2];
struct efi_device_path_mac_addr dp_mac;
struct efi_device_path_file_path dp_end;
/* PXE struct to transmit dhcp data */
struct efi_pxe pxe;
struct efi_pxe_mode pxe_mode;
@ -205,7 +206,7 @@ static efi_status_t EFIAPI efi_net_open_dp(void *handle, efi_guid_t *protocol,
struct efi_simple_network *net = handle;
struct efi_net_obj *netobj = container_of(net, struct efi_net_obj, net);
*protocol_interface = netobj->dp;
*protocol_interface = &netobj->dp_mac;
return EFI_SUCCESS;
}
@ -236,11 +237,10 @@ void efi_net_set_dhcp_ack(void *pkt, int len)
int efi_net_register(void **handle)
{
struct efi_net_obj *netobj;
struct efi_device_path_file_path dp_net = {
.dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE,
.dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH,
struct efi_device_path_mac_addr dp_net = {
.dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE,
.dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR,
.dp.length = sizeof(dp_net),
.str = { 'N', 'e', 't' },
};
struct efi_device_path_file_path dp_end = {
.dp.type = DEVICE_PATH_TYPE_END,
@ -279,8 +279,9 @@ int efi_net_register(void **handle)
netobj->net.receive = efi_net_receive;
netobj->net.mode = &netobj->net_mode;
netobj->net_mode.state = EFI_NETWORK_STARTED;
netobj->dp[0] = dp_net;
netobj->dp[1] = dp_end;
netobj->dp_mac = dp_net;
netobj->dp_end = dp_end;
memcpy(netobj->dp_mac.mac.addr, eth_get_ethaddr(), 6);
memcpy(netobj->net_mode.current_address.mac_addr, eth_get_ethaddr(), 6);
netobj->net_mode.max_packet_size = PKTSIZE;