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![Heinrich Schuchardt](/assets/img/avatar_default.png)
Add some more files to the UEFI API documentation. Correct some Sphinx comments. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
947 lines
25 KiB
C
947 lines
25 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Simple network protocol
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* PXE base code protocol
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*
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* Copyright (c) 2016 Alexander Graf
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*
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* The simple network protocol has the following statuses and services
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* to move between them:
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*
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* Start(): EfiSimpleNetworkStopped -> EfiSimpleNetworkStarted
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* Initialize(): EfiSimpleNetworkStarted -> EfiSimpleNetworkInitialized
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* Shutdown(): EfiSimpleNetworkInitialized -> EfiSimpleNetworkStarted
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* Stop(): EfiSimpleNetworkStarted -> EfiSimpleNetworkStopped
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* Reset(): EfiSimpleNetworkInitialized -> EfiSimpleNetworkInitialized
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*/
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#include <common.h>
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#include <efi_loader.h>
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#include <malloc.h>
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static const efi_guid_t efi_net_guid = EFI_SIMPLE_NETWORK_PROTOCOL_GUID;
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static const efi_guid_t efi_pxe_base_code_protocol_guid =
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EFI_PXE_BASE_CODE_PROTOCOL_GUID;
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static struct efi_pxe_packet *dhcp_ack;
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static bool new_rx_packet;
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static void *new_tx_packet;
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static void *transmit_buffer;
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/*
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* The notification function of this event is called in every timer cycle
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* to check if a new network packet has been received.
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*/
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static struct efi_event *network_timer_event;
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/*
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* This event is signaled when a packet has been received.
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*/
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static struct efi_event *wait_for_packet;
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/**
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* struct efi_net_obj - EFI object representing a network interface
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*
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* @header: EFI object header
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* @net: simple network protocol interface
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* @net_mode: status of the network interface
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* @pxe: PXE base code protocol interface
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* @pxe_mode: status of the PXE base code protocol
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*/
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struct efi_net_obj {
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struct efi_object header;
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struct efi_simple_network net;
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struct efi_simple_network_mode net_mode;
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struct efi_pxe_base_code_protocol pxe;
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struct efi_pxe_mode pxe_mode;
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};
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/*
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* efi_net_start() - start the network interface
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*
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* This function implements the Start service of the
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* EFI_SIMPLE_NETWORK_PROTOCOL. See the Unified Extensible Firmware Interface
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* (UEFI) specification for details.
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*
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* @this: pointer to the protocol instance
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* Return: status code
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*/
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static efi_status_t EFIAPI efi_net_start(struct efi_simple_network *this)
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{
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efi_status_t ret = EFI_SUCCESS;
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EFI_ENTRY("%p", this);
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/* Check parameters */
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if (!this) {
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ret = EFI_INVALID_PARAMETER;
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goto out;
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}
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if (this->mode->state != EFI_NETWORK_STOPPED) {
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ret = EFI_ALREADY_STARTED;
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} else {
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this->int_status = 0;
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wait_for_packet->is_signaled = false;
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this->mode->state = EFI_NETWORK_STARTED;
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}
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out:
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return EFI_EXIT(ret);
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}
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/*
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* efi_net_stop() - stop the network interface
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*
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* This function implements the Stop service of the
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* EFI_SIMPLE_NETWORK_PROTOCOL. See the Unified Extensible Firmware Interface
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* (UEFI) specification for details.
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*
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* @this: pointer to the protocol instance
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* Return: status code
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*/
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static efi_status_t EFIAPI efi_net_stop(struct efi_simple_network *this)
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{
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efi_status_t ret = EFI_SUCCESS;
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EFI_ENTRY("%p", this);
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/* Check parameters */
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if (!this) {
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ret = EFI_INVALID_PARAMETER;
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goto out;
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}
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if (this->mode->state == EFI_NETWORK_STOPPED) {
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ret = EFI_NOT_STARTED;
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} else {
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/* Disable hardware and put it into the reset state */
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eth_halt();
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this->mode->state = EFI_NETWORK_STOPPED;
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}
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out:
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return EFI_EXIT(ret);
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}
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/*
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* efi_net_initialize() - initialize the network interface
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*
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* This function implements the Initialize service of the
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* EFI_SIMPLE_NETWORK_PROTOCOL. See the Unified Extensible Firmware Interface
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* (UEFI) specification for details.
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*
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* @this: pointer to the protocol instance
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* @extra_rx: extra receive buffer to be allocated
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* @extra_tx: extra transmit buffer to be allocated
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* Return: status code
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*/
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static efi_status_t EFIAPI efi_net_initialize(struct efi_simple_network *this,
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ulong extra_rx, ulong extra_tx)
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{
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int ret;
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efi_status_t r = EFI_SUCCESS;
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EFI_ENTRY("%p, %lx, %lx", this, extra_rx, extra_tx);
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/* Check parameters */
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if (!this) {
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r = EFI_INVALID_PARAMETER;
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goto out;
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}
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switch (this->mode->state) {
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case EFI_NETWORK_INITIALIZED:
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case EFI_NETWORK_STARTED:
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break;
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default:
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r = EFI_NOT_STARTED;
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goto out;
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}
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/* Setup packet buffers */
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net_init();
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/* Disable hardware and put it into the reset state */
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eth_halt();
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/* Set current device according to environment variables */
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eth_set_current();
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/* Get hardware ready for send and receive operations */
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ret = eth_init();
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if (ret < 0) {
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eth_halt();
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this->mode->state = EFI_NETWORK_STOPPED;
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r = EFI_DEVICE_ERROR;
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goto out;
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} else {
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this->int_status = 0;
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wait_for_packet->is_signaled = false;
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this->mode->state = EFI_NETWORK_INITIALIZED;
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}
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out:
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return EFI_EXIT(r);
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}
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/*
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* efi_net_reset() - reinitialize the network interface
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*
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* This function implements the Reset service of the
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* EFI_SIMPLE_NETWORK_PROTOCOL. See the Unified Extensible Firmware Interface
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* (UEFI) specification for details.
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*
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* @this: pointer to the protocol instance
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* @extended_verification: execute exhaustive verification
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* Return: status code
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*/
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static efi_status_t EFIAPI efi_net_reset(struct efi_simple_network *this,
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int extended_verification)
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{
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efi_status_t ret;
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EFI_ENTRY("%p, %x", this, extended_verification);
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/* Check parameters */
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if (!this) {
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ret = EFI_INVALID_PARAMETER;
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goto out;
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}
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switch (this->mode->state) {
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case EFI_NETWORK_INITIALIZED:
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break;
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case EFI_NETWORK_STOPPED:
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ret = EFI_NOT_STARTED;
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goto out;
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default:
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ret = EFI_DEVICE_ERROR;
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goto out;
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}
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this->mode->state = EFI_NETWORK_STARTED;
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ret = EFI_CALL(efi_net_initialize(this, 0, 0));
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out:
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return EFI_EXIT(ret);
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}
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/*
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* efi_net_shutdown() - shut down the network interface
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*
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* This function implements the Shutdown service of the
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* EFI_SIMPLE_NETWORK_PROTOCOL. See the Unified Extensible Firmware Interface
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* (UEFI) specification for details.
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*
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* @this: pointer to the protocol instance
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* Return: status code
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*/
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static efi_status_t EFIAPI efi_net_shutdown(struct efi_simple_network *this)
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{
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efi_status_t ret = EFI_SUCCESS;
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EFI_ENTRY("%p", this);
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/* Check parameters */
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if (!this) {
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ret = EFI_INVALID_PARAMETER;
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goto out;
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}
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switch (this->mode->state) {
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case EFI_NETWORK_INITIALIZED:
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break;
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case EFI_NETWORK_STOPPED:
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ret = EFI_NOT_STARTED;
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goto out;
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default:
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ret = EFI_DEVICE_ERROR;
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goto out;
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}
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eth_halt();
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this->int_status = 0;
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wait_for_packet->is_signaled = false;
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this->mode->state = EFI_NETWORK_STARTED;
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out:
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return EFI_EXIT(ret);
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}
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/*
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* efi_net_receive_filters() - mange multicast receive filters
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*
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* This function implements the ReceiveFilters service of the
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* EFI_SIMPLE_NETWORK_PROTOCOL. See the Unified Extensible Firmware Interface
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* (UEFI) specification for details.
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*
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* @this: pointer to the protocol instance
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* @enable: bit mask of receive filters to enable
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* @disable: bit mask of receive filters to disable
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* @reset_mcast_filter: true resets contents of the filters
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* @mcast_filter_count: number of hardware MAC addresses in the new filters list
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* @mcast_filter: list of new filters
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* Return: status code
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*/
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static efi_status_t EFIAPI efi_net_receive_filters
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(struct efi_simple_network *this, u32 enable, u32 disable,
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int reset_mcast_filter, ulong mcast_filter_count,
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struct efi_mac_address *mcast_filter)
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{
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EFI_ENTRY("%p, %x, %x, %x, %lx, %p", this, enable, disable,
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reset_mcast_filter, mcast_filter_count, mcast_filter);
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return EFI_EXIT(EFI_UNSUPPORTED);
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}
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/*
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* efi_net_station_address() - set the hardware MAC address
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*
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* This function implements the StationAddress service of the
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* EFI_SIMPLE_NETWORK_PROTOCOL. See the Unified Extensible Firmware Interface
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* (UEFI) specification for details.
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*
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* @this: pointer to the protocol instance
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* @reset: if true reset the address to default
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* @new_mac: new MAC address
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* Return: status code
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*/
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static efi_status_t EFIAPI efi_net_station_address
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(struct efi_simple_network *this, int reset,
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struct efi_mac_address *new_mac)
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{
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EFI_ENTRY("%p, %x, %p", this, reset, new_mac);
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return EFI_EXIT(EFI_UNSUPPORTED);
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}
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/*
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* efi_net_statistics() - reset or collect statistics of the network interface
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*
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* This function implements the Statistics service of the
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* EFI_SIMPLE_NETWORK_PROTOCOL. See the Unified Extensible Firmware Interface
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* (UEFI) specification for details.
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*
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* @this: pointer to the protocol instance
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* @reset: if true, the statistics are reset
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* @stat_size: size of the statistics table
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* @stat_table: table to receive the statistics
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* Return: status code
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*/
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static efi_status_t EFIAPI efi_net_statistics(struct efi_simple_network *this,
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int reset, ulong *stat_size,
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void *stat_table)
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{
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EFI_ENTRY("%p, %x, %p, %p", this, reset, stat_size, stat_table);
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return EFI_EXIT(EFI_UNSUPPORTED);
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}
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/*
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* efi_net_mcastiptomac() - translate multicast IP address to MAC address
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*
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* This function implements the MCastIPtoMAC service of the
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* EFI_SIMPLE_NETWORK_PROTOCOL. See the Unified Extensible Firmware Interface
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* (UEFI) specification for details.
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*
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* @this: pointer to the protocol instance
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* @ipv6: true if the IP address is an IPv6 address
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* @ip: IP address
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* @mac: MAC address
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* Return: status code
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*/
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static efi_status_t EFIAPI efi_net_mcastiptomac(struct efi_simple_network *this,
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int ipv6,
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struct efi_ip_address *ip,
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struct efi_mac_address *mac)
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{
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efi_status_t ret = EFI_SUCCESS;
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EFI_ENTRY("%p, %x, %p, %p", this, ipv6, ip, mac);
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if (!this || !ip || !mac) {
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ret = EFI_INVALID_PARAMETER;
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goto out;
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}
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if (ipv6) {
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ret = EFI_UNSUPPORTED;
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goto out;
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}
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/* Multi-cast addresses are in the range 224.0.0.0 - 239.255.255.255 */
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if ((ip->ip_addr[0] & 0xf0) != 0xe0) {
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ret = EFI_INVALID_PARAMETER;
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goto out;
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};
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switch (this->mode->state) {
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case EFI_NETWORK_INITIALIZED:
|
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case EFI_NETWORK_STARTED:
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break;
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default:
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ret = EFI_NOT_STARTED;
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goto out;
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}
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memset(mac, 0, sizeof(struct efi_mac_address));
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/*
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* Copy lower 23 bits of IPv4 multi-cast address
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* RFC 1112, RFC 7042 2.1.1.
|
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*/
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mac->mac_addr[0] = 0x01;
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mac->mac_addr[1] = 0x00;
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mac->mac_addr[2] = 0x5E;
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mac->mac_addr[3] = ip->ip_addr[1] & 0x7F;
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mac->mac_addr[4] = ip->ip_addr[2];
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mac->mac_addr[5] = ip->ip_addr[3];
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out:
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return EFI_EXIT(ret);
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}
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|
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/**
|
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* efi_net_nvdata() - read or write NVRAM
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*
|
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* This function implements the GetStatus service of the Simple Network
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* Protocol. See the UEFI spec for details.
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*
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* @this: the instance of the Simple Network Protocol
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* @read_write: true for read, false for write
|
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* @offset: offset in NVRAM
|
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* @buffer_size: size of buffer
|
|
* @buffer: buffer
|
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* Return: status code
|
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*/
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static efi_status_t EFIAPI efi_net_nvdata(struct efi_simple_network *this,
|
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int read_write, ulong offset,
|
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ulong buffer_size, char *buffer)
|
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{
|
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EFI_ENTRY("%p, %x, %lx, %lx, %p", this, read_write, offset, buffer_size,
|
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buffer);
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|
|
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return EFI_EXIT(EFI_UNSUPPORTED);
|
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}
|
|
|
|
/**
|
|
* efi_net_get_status() - get interrupt status
|
|
*
|
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* This function implements the GetStatus service of the Simple Network
|
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* Protocol. See the UEFI spec for details.
|
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*
|
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* @this: the instance of the Simple Network Protocol
|
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* @int_status: interface status
|
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* @txbuf: transmission buffer
|
|
*/
|
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static efi_status_t EFIAPI efi_net_get_status(struct efi_simple_network *this,
|
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u32 *int_status, void **txbuf)
|
|
{
|
|
efi_status_t ret = EFI_SUCCESS;
|
|
|
|
EFI_ENTRY("%p, %p, %p", this, int_status, txbuf);
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|
|
|
efi_timer_check();
|
|
|
|
/* Check parameters */
|
|
if (!this) {
|
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ret = EFI_INVALID_PARAMETER;
|
|
goto out;
|
|
}
|
|
|
|
switch (this->mode->state) {
|
|
case EFI_NETWORK_STOPPED:
|
|
ret = EFI_NOT_STARTED;
|
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goto out;
|
|
case EFI_NETWORK_STARTED:
|
|
ret = EFI_DEVICE_ERROR;
|
|
goto out;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (int_status) {
|
|
*int_status = this->int_status;
|
|
this->int_status = 0;
|
|
}
|
|
if (txbuf)
|
|
*txbuf = new_tx_packet;
|
|
|
|
new_tx_packet = NULL;
|
|
out:
|
|
return EFI_EXIT(ret);
|
|
}
|
|
|
|
/**
|
|
* efi_net_transmit() - transmit a packet
|
|
*
|
|
* This function implements the Transmit service of the Simple Network Protocol.
|
|
* See the UEFI spec for details.
|
|
*
|
|
* @this: the instance of the Simple Network Protocol
|
|
* @header_size: size of the media header
|
|
* @buffer_size: size of the buffer to receive the packet
|
|
* @buffer: buffer to receive the packet
|
|
* @src_addr: source hardware MAC address
|
|
* @dest_addr: destination hardware MAC address
|
|
* @protocol: type of header to build
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t EFIAPI efi_net_transmit
|
|
(struct efi_simple_network *this, size_t header_size,
|
|
size_t buffer_size, void *buffer,
|
|
struct efi_mac_address *src_addr,
|
|
struct efi_mac_address *dest_addr, u16 *protocol)
|
|
{
|
|
efi_status_t ret = EFI_SUCCESS;
|
|
|
|
EFI_ENTRY("%p, %lu, %lu, %p, %p, %p, %p", this,
|
|
(unsigned long)header_size, (unsigned long)buffer_size,
|
|
buffer, src_addr, dest_addr, protocol);
|
|
|
|
efi_timer_check();
|
|
|
|
/* Check parameters */
|
|
if (!this || !buffer) {
|
|
ret = EFI_INVALID_PARAMETER;
|
|
goto out;
|
|
}
|
|
|
|
/* We do not support jumbo packets */
|
|
if (buffer_size > PKTSIZE_ALIGN) {
|
|
ret = EFI_INVALID_PARAMETER;
|
|
goto out;
|
|
}
|
|
|
|
/* At least the IP header has to fit into the buffer */
|
|
if (buffer_size < this->mode->media_header_size) {
|
|
ret = EFI_BUFFER_TOO_SMALL;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* TODO:
|
|
* Support VLANs. Use net_set_ether() for copying the header. Use a
|
|
* U_BOOT_ENV_CALLBACK to update the media header size.
|
|
*/
|
|
if (header_size) {
|
|
struct ethernet_hdr *header = buffer;
|
|
|
|
if (!dest_addr || !protocol ||
|
|
header_size != this->mode->media_header_size) {
|
|
ret = EFI_INVALID_PARAMETER;
|
|
goto out;
|
|
}
|
|
if (!src_addr)
|
|
src_addr = &this->mode->current_address;
|
|
|
|
memcpy(header->et_dest, dest_addr, ARP_HLEN);
|
|
memcpy(header->et_src, src_addr, ARP_HLEN);
|
|
header->et_protlen = htons(*protocol);
|
|
}
|
|
|
|
switch (this->mode->state) {
|
|
case EFI_NETWORK_STOPPED:
|
|
ret = EFI_NOT_STARTED;
|
|
goto out;
|
|
case EFI_NETWORK_STARTED:
|
|
ret = EFI_DEVICE_ERROR;
|
|
goto out;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* Ethernet packets always fit, just bounce */
|
|
memcpy(transmit_buffer, buffer, buffer_size);
|
|
net_send_packet(transmit_buffer, buffer_size);
|
|
|
|
new_tx_packet = buffer;
|
|
this->int_status |= EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT;
|
|
out:
|
|
return EFI_EXIT(ret);
|
|
}
|
|
|
|
/**
|
|
* efi_net_receive() - receive a packet from a network interface
|
|
*
|
|
* This function implements the Receive service of the Simple Network Protocol.
|
|
* See the UEFI spec for details.
|
|
*
|
|
* @this: the instance of the Simple Network Protocol
|
|
* @header_size: size of the media header
|
|
* @buffer_size: size of the buffer to receive the packet
|
|
* @buffer: buffer to receive the packet
|
|
* @src_addr: source MAC address
|
|
* @dest_addr: destination MAC address
|
|
* @protocol: protocol
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t EFIAPI efi_net_receive
|
|
(struct efi_simple_network *this, size_t *header_size,
|
|
size_t *buffer_size, void *buffer,
|
|
struct efi_mac_address *src_addr,
|
|
struct efi_mac_address *dest_addr, u16 *protocol)
|
|
{
|
|
efi_status_t ret = EFI_SUCCESS;
|
|
struct ethernet_hdr *eth_hdr;
|
|
size_t hdr_size = sizeof(struct ethernet_hdr);
|
|
u16 protlen;
|
|
|
|
EFI_ENTRY("%p, %p, %p, %p, %p, %p, %p", this, header_size,
|
|
buffer_size, buffer, src_addr, dest_addr, protocol);
|
|
|
|
/* Execute events */
|
|
efi_timer_check();
|
|
|
|
/* Check parameters */
|
|
if (!this || !buffer || !buffer_size) {
|
|
ret = EFI_INVALID_PARAMETER;
|
|
goto out;
|
|
}
|
|
|
|
switch (this->mode->state) {
|
|
case EFI_NETWORK_STOPPED:
|
|
ret = EFI_NOT_STARTED;
|
|
goto out;
|
|
case EFI_NETWORK_STARTED:
|
|
ret = EFI_DEVICE_ERROR;
|
|
goto out;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!new_rx_packet) {
|
|
ret = EFI_NOT_READY;
|
|
goto out;
|
|
}
|
|
/* Fill export parameters */
|
|
eth_hdr = (struct ethernet_hdr *)net_rx_packet;
|
|
protlen = ntohs(eth_hdr->et_protlen);
|
|
if (protlen == 0x8100) {
|
|
hdr_size += 4;
|
|
protlen = ntohs(*(u16 *)&net_rx_packet[hdr_size - 2]);
|
|
}
|
|
if (header_size)
|
|
*header_size = hdr_size;
|
|
if (dest_addr)
|
|
memcpy(dest_addr, eth_hdr->et_dest, ARP_HLEN);
|
|
if (src_addr)
|
|
memcpy(src_addr, eth_hdr->et_src, ARP_HLEN);
|
|
if (protocol)
|
|
*protocol = protlen;
|
|
if (*buffer_size < net_rx_packet_len) {
|
|
/* Packet doesn't fit, try again with bigger buffer */
|
|
*buffer_size = net_rx_packet_len;
|
|
ret = EFI_BUFFER_TOO_SMALL;
|
|
goto out;
|
|
}
|
|
/* Copy packet */
|
|
memcpy(buffer, net_rx_packet, net_rx_packet_len);
|
|
*buffer_size = net_rx_packet_len;
|
|
new_rx_packet = 0;
|
|
this->int_status &= ~EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT;
|
|
out:
|
|
return EFI_EXIT(ret);
|
|
}
|
|
|
|
/**
|
|
* efi_net_set_dhcp_ack() - take note of a selected DHCP IP address
|
|
*
|
|
* This function is called by dhcp_handler().
|
|
*
|
|
* @pkt: packet received by dhcp_handler()
|
|
* @len: length of the packet received
|
|
*/
|
|
void efi_net_set_dhcp_ack(void *pkt, int len)
|
|
{
|
|
int maxsize = sizeof(*dhcp_ack);
|
|
|
|
if (!dhcp_ack)
|
|
dhcp_ack = malloc(maxsize);
|
|
|
|
memcpy(dhcp_ack, pkt, min(len, maxsize));
|
|
}
|
|
|
|
/**
|
|
* efi_net_push() - callback for received network packet
|
|
*
|
|
* This function is called when a network packet is received by eth_rx().
|
|
*
|
|
* @pkt: network packet
|
|
* @len: length
|
|
*/
|
|
static void efi_net_push(void *pkt, int len)
|
|
{
|
|
new_rx_packet = true;
|
|
}
|
|
|
|
/**
|
|
* efi_network_timer_notify() - check if a new network packet has been received
|
|
*
|
|
* This notification function is called in every timer cycle.
|
|
*
|
|
* @event: the event for which this notification function is registered
|
|
* @context: event context - not used in this function
|
|
*/
|
|
static void EFIAPI efi_network_timer_notify(struct efi_event *event,
|
|
void *context)
|
|
{
|
|
struct efi_simple_network *this = (struct efi_simple_network *)context;
|
|
|
|
EFI_ENTRY("%p, %p", event, context);
|
|
|
|
/*
|
|
* Some network drivers do not support calling eth_rx() before
|
|
* initialization.
|
|
*/
|
|
if (!this || this->mode->state != EFI_NETWORK_INITIALIZED)
|
|
goto out;
|
|
|
|
if (!new_rx_packet) {
|
|
push_packet = efi_net_push;
|
|
eth_rx();
|
|
push_packet = NULL;
|
|
if (new_rx_packet) {
|
|
/* Check that we at least received an Ethernet header */
|
|
if (net_rx_packet_len >=
|
|
sizeof(struct ethernet_hdr)) {
|
|
this->int_status |=
|
|
EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT;
|
|
wait_for_packet->is_signaled = true;
|
|
} else {
|
|
new_rx_packet = 0;
|
|
}
|
|
}
|
|
}
|
|
out:
|
|
EFI_EXIT(EFI_SUCCESS);
|
|
}
|
|
|
|
static efi_status_t EFIAPI efi_pxe_base_code_start(
|
|
struct efi_pxe_base_code_protocol *this,
|
|
u8 use_ipv6)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
static efi_status_t EFIAPI efi_pxe_base_code_stop(
|
|
struct efi_pxe_base_code_protocol *this)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
static efi_status_t EFIAPI efi_pxe_base_code_dhcp(
|
|
struct efi_pxe_base_code_protocol *this,
|
|
u8 sort_offers)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
static efi_status_t EFIAPI efi_pxe_base_code_discover(
|
|
struct efi_pxe_base_code_protocol *this,
|
|
u16 type, u16 *layer, u8 bis,
|
|
struct efi_pxe_base_code_discover_info *info)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
static efi_status_t EFIAPI efi_pxe_base_code_mtftp(
|
|
struct efi_pxe_base_code_protocol *this,
|
|
u32 operation, void *buffer_ptr,
|
|
u8 overwrite, efi_uintn_t *buffer_size,
|
|
struct efi_ip_address server_ip, char *filename,
|
|
struct efi_pxe_base_code_mtftp_info *info,
|
|
u8 dont_use_buffer)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
static efi_status_t EFIAPI efi_pxe_base_code_udp_write(
|
|
struct efi_pxe_base_code_protocol *this,
|
|
u16 op_flags, struct efi_ip_address *dest_ip,
|
|
u16 *dest_port,
|
|
struct efi_ip_address *gateway_ip,
|
|
struct efi_ip_address *src_ip, u16 *src_port,
|
|
efi_uintn_t *header_size, void *header_ptr,
|
|
efi_uintn_t *buffer_size, void *buffer_ptr)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
static efi_status_t EFIAPI efi_pxe_base_code_udp_read(
|
|
struct efi_pxe_base_code_protocol *this,
|
|
u16 op_flags, struct efi_ip_address *dest_ip,
|
|
u16 *dest_port, struct efi_ip_address *src_ip,
|
|
u16 *src_port, efi_uintn_t *header_size,
|
|
void *header_ptr, efi_uintn_t *buffer_size,
|
|
void *buffer_ptr)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
static efi_status_t EFIAPI efi_pxe_base_code_set_ip_filter(
|
|
struct efi_pxe_base_code_protocol *this,
|
|
struct efi_pxe_base_code_filter *new_filter)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
static efi_status_t EFIAPI efi_pxe_base_code_arp(
|
|
struct efi_pxe_base_code_protocol *this,
|
|
struct efi_ip_address *ip_addr,
|
|
struct efi_mac_address *mac_addr)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
static efi_status_t EFIAPI efi_pxe_base_code_set_parameters(
|
|
struct efi_pxe_base_code_protocol *this,
|
|
u8 *new_auto_arp, u8 *new_send_guid,
|
|
u8 *new_ttl, u8 *new_tos,
|
|
u8 *new_make_callback)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
static efi_status_t EFIAPI efi_pxe_base_code_set_station_ip(
|
|
struct efi_pxe_base_code_protocol *this,
|
|
struct efi_ip_address *new_station_ip,
|
|
struct efi_ip_address *new_subnet_mask)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
static efi_status_t EFIAPI efi_pxe_base_code_set_packets(
|
|
struct efi_pxe_base_code_protocol *this,
|
|
u8 *new_dhcp_discover_valid,
|
|
u8 *new_dhcp_ack_received,
|
|
u8 *new_proxy_offer_received,
|
|
u8 *new_pxe_discover_valid,
|
|
u8 *new_pxe_reply_received,
|
|
u8 *new_pxe_bis_reply_received,
|
|
EFI_PXE_BASE_CODE_PACKET *new_dchp_discover,
|
|
EFI_PXE_BASE_CODE_PACKET *new_dhcp_acc,
|
|
EFI_PXE_BASE_CODE_PACKET *new_proxy_offer,
|
|
EFI_PXE_BASE_CODE_PACKET *new_pxe_discover,
|
|
EFI_PXE_BASE_CODE_PACKET *new_pxe_reply,
|
|
EFI_PXE_BASE_CODE_PACKET *new_pxe_bis_reply)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
/**
|
|
* efi_net_register() - register the simple network protocol
|
|
*
|
|
* This gets called from do_bootefi_exec().
|
|
*/
|
|
efi_status_t efi_net_register(void)
|
|
{
|
|
struct efi_net_obj *netobj = NULL;
|
|
efi_status_t r;
|
|
|
|
if (!eth_get_dev()) {
|
|
/* No network device active, don't expose any */
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/* We only expose the "active" network device, so one is enough */
|
|
netobj = calloc(1, sizeof(*netobj));
|
|
if (!netobj)
|
|
goto out_of_resources;
|
|
|
|
/* Allocate an aligned transmit buffer */
|
|
transmit_buffer = calloc(1, PKTSIZE_ALIGN + PKTALIGN);
|
|
if (!transmit_buffer)
|
|
goto out_of_resources;
|
|
transmit_buffer = (void *)ALIGN((uintptr_t)transmit_buffer, PKTALIGN);
|
|
|
|
/* Hook net up to the device list */
|
|
efi_add_handle(&netobj->header);
|
|
|
|
/* Fill in object data */
|
|
r = efi_add_protocol(&netobj->header, &efi_net_guid,
|
|
&netobj->net);
|
|
if (r != EFI_SUCCESS)
|
|
goto failure_to_add_protocol;
|
|
r = efi_add_protocol(&netobj->header, &efi_guid_device_path,
|
|
efi_dp_from_eth());
|
|
if (r != EFI_SUCCESS)
|
|
goto failure_to_add_protocol;
|
|
r = efi_add_protocol(&netobj->header, &efi_pxe_base_code_protocol_guid,
|
|
&netobj->pxe);
|
|
if (r != EFI_SUCCESS)
|
|
goto failure_to_add_protocol;
|
|
netobj->net.revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;
|
|
netobj->net.start = efi_net_start;
|
|
netobj->net.stop = efi_net_stop;
|
|
netobj->net.initialize = efi_net_initialize;
|
|
netobj->net.reset = efi_net_reset;
|
|
netobj->net.shutdown = efi_net_shutdown;
|
|
netobj->net.receive_filters = efi_net_receive_filters;
|
|
netobj->net.station_address = efi_net_station_address;
|
|
netobj->net.statistics = efi_net_statistics;
|
|
netobj->net.mcastiptomac = efi_net_mcastiptomac;
|
|
netobj->net.nvdata = efi_net_nvdata;
|
|
netobj->net.get_status = efi_net_get_status;
|
|
netobj->net.transmit = efi_net_transmit;
|
|
netobj->net.receive = efi_net_receive;
|
|
netobj->net.mode = &netobj->net_mode;
|
|
netobj->net_mode.state = EFI_NETWORK_STOPPED;
|
|
memcpy(netobj->net_mode.current_address.mac_addr, eth_get_ethaddr(), 6);
|
|
netobj->net_mode.hwaddr_size = ARP_HLEN;
|
|
netobj->net_mode.media_header_size = ETHER_HDR_SIZE;
|
|
netobj->net_mode.max_packet_size = PKTSIZE;
|
|
netobj->net_mode.if_type = ARP_ETHER;
|
|
|
|
netobj->pxe.revision = EFI_PXE_BASE_CODE_PROTOCOL_REVISION;
|
|
netobj->pxe.start = efi_pxe_base_code_start;
|
|
netobj->pxe.stop = efi_pxe_base_code_stop;
|
|
netobj->pxe.dhcp = efi_pxe_base_code_dhcp;
|
|
netobj->pxe.discover = efi_pxe_base_code_discover;
|
|
netobj->pxe.mtftp = efi_pxe_base_code_mtftp;
|
|
netobj->pxe.udp_write = efi_pxe_base_code_udp_write;
|
|
netobj->pxe.udp_read = efi_pxe_base_code_udp_read;
|
|
netobj->pxe.set_ip_filter = efi_pxe_base_code_set_ip_filter;
|
|
netobj->pxe.arp = efi_pxe_base_code_arp;
|
|
netobj->pxe.set_parameters = efi_pxe_base_code_set_parameters;
|
|
netobj->pxe.set_station_ip = efi_pxe_base_code_set_station_ip;
|
|
netobj->pxe.set_packets = efi_pxe_base_code_set_packets;
|
|
netobj->pxe.mode = &netobj->pxe_mode;
|
|
if (dhcp_ack)
|
|
netobj->pxe_mode.dhcp_ack = *dhcp_ack;
|
|
|
|
/*
|
|
* Create WaitForPacket event.
|
|
*/
|
|
r = efi_create_event(EVT_NOTIFY_WAIT, TPL_CALLBACK,
|
|
efi_network_timer_notify, NULL, NULL,
|
|
&wait_for_packet);
|
|
if (r != EFI_SUCCESS) {
|
|
printf("ERROR: Failed to register network event\n");
|
|
return r;
|
|
}
|
|
netobj->net.wait_for_packet = wait_for_packet;
|
|
/*
|
|
* Create a timer event.
|
|
*
|
|
* The notification function is used to check if a new network packet
|
|
* has been received.
|
|
*
|
|
* iPXE is running at TPL_CALLBACK most of the time. Use a higher TPL.
|
|
*/
|
|
r = efi_create_event(EVT_TIMER | EVT_NOTIFY_SIGNAL, TPL_NOTIFY,
|
|
efi_network_timer_notify, &netobj->net, NULL,
|
|
&network_timer_event);
|
|
if (r != EFI_SUCCESS) {
|
|
printf("ERROR: Failed to register network event\n");
|
|
return r;
|
|
}
|
|
/* Network is time critical, create event in every timer cycle */
|
|
r = efi_set_timer(network_timer_event, EFI_TIMER_PERIODIC, 0);
|
|
if (r != EFI_SUCCESS) {
|
|
printf("ERROR: Failed to set network timer\n");
|
|
return r;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
failure_to_add_protocol:
|
|
printf("ERROR: Failure to add protocol\n");
|
|
return r;
|
|
out_of_resources:
|
|
free(netobj);
|
|
/* free(transmit_buffer) not needed yet */
|
|
printf("ERROR: Out of memory\n");
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|