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/*
* Copyright 2013-2014 Intel Corporation - All Rights Reserved
*/
#include <syslinux/firmware.h>
#include <syslinux/pxe_api.h>
#include "efi.h"
#include "net.h"
#include "fs/pxe/pxe.h"
const struct url_scheme url_schemes[] = {
{ "tftp", tftp_open, 0 },
{ "http", http_open, O_DIRECTORY },
{ "ftp", ftp_open, O_DIRECTORY },
{ NULL, NULL, 0 },
};
/**
* Network stack-specific initialization
*/
void net_core_init(void)
{
http_bake_cookies();
}
void pxe_init_isr(void) {}
void gpxe_init(void) {}
void pxe_idle_init(void) {}
int reset_pxe(void)
{
return 0;
}
#define DNS_MAX_SERVERS 4 /* Max no of DNS servers */
uint32_t dns_server[DNS_MAX_SERVERS] = {0, };
__export uint32_t dns_resolv(const char *name)
{
/*
* Return failure on an empty input... this can happen during
* some types of URL parsing, and this is the easiest place to
* check for it.
*/
if (!name || !*name)
return 0;
return 0;
}
int pxe_init(bool quiet)
{
EFI_HANDLE *handles;
EFI_STATUS status;
UINTN nr_handles;
status = LibLocateHandle(ByProtocol, &PxeBaseCodeProtocol,
NULL, &nr_handles, &handles);
if (status != EFI_SUCCESS) {
if (!quiet)
Print(L"No PXE Base Code Protocol\n");
return -1;
}
return 0;
}
#define EDHCP_BUF_LEN 8192
struct embedded_dhcp_options {
uint32_t magic[4];
uint32_t bdhcp_len;
uint32_t adhcp_len;
uint32_t buffer_size;
uint32_t reserved;
uint8_t dhcp_data[EDHCP_BUF_LEN];
} __attribute__((aligned(16)));
struct embedded_dhcp_options embedded_dhcp_options =
{
.magic[0] = 0x2a171ead,
.magic[1] = 0x0600e65e,
.magic[2] = 0x4025a4e4,
.magic[3] = 0x42388fc8,
.bdhcp_len = 0,
.adhcp_len = 0,
.buffer_size = EDHCP_BUF_LEN,
};
void net_parse_dhcp(void)
{
EFI_PXE_BASE_CODE_MODE *mode;
EFI_PXE_BASE_CODE *bc;
unsigned int pkt_len = sizeof(EFI_PXE_BASE_CODE_PACKET);
EFI_STATUS status;
EFI_HANDLE *handles = NULL;
UINTN nr_handles = 0;
uint8_t hardlen;
uint32_t ip;
char dst[256];
status = LibLocateHandle(ByProtocol, &PxeBaseCodeProtocol,
NULL, &nr_handles, &handles);
if (status != EFI_SUCCESS)
return;
/* Probably want to use IPv4 protocol to decide which handle to use */
status = uefi_call_wrapper(BS->HandleProtocol, 3, handles[0],
&PxeBaseCodeProtocol, (void **)&bc);
if (status != EFI_SUCCESS) {
Print(L"Failed to lookup PxeBaseCodeProtocol\n");
}
mode = bc->Mode;
/*
* Parse any "before" hardcoded options
*/
parse_dhcp_options(embedded_dhcp_options.dhcp_data,
embedded_dhcp_options.bdhcp_len, 0);
/*
* Get the DHCP client identifiers (query info 1)
*/
Print(L"Getting cached packet ");
parse_dhcp(&mode->DhcpDiscover.Dhcpv4, pkt_len);
/*
* We don't use flags from the request packet, so
* this is a good time to initialize DHCPMagic...
* Initialize it to 1 meaning we will accept options found;
* in earlier versions of PXELINUX bit 0 was used to indicate
* we have found option 208 with the appropriate magic number;
* we no longer require that, but MAY want to re-introduce
* it in the future for vendor encapsulated options.
*/
*(char *)&DHCPMagic = 1;
/*
* Get the BOOTP/DHCP packet that brought us file (and an IP
* address). This lives in the DHCPACK packet (query info 2)
*/
parse_dhcp(&mode->DhcpAck.Dhcpv4, pkt_len);
/*
* Save away MAC address (assume this is in query info 2. If this
* turns out to be problematic it might be better getting it from
* the query info 1 packet
*/
hardlen = mode->DhcpAck.Dhcpv4.BootpHwAddrLen;
MAC_len = hardlen > 16 ? 0 : hardlen;
MAC_type = mode->DhcpAck.Dhcpv4.BootpHwType;
memcpy(MAC, mode->DhcpAck.Dhcpv4.BootpHwAddr, MAC_len);
/*
* Get the boot file and other info. This lives in the CACHED_REPLY
* packet (query info 3)
*/
parse_dhcp(&mode->PxeReply.Dhcpv4, pkt_len);
Print(L"\n");
/*
* Parse any "after" hardcoded options
*/
parse_dhcp_options(embedded_dhcp_options.dhcp_data +
embedded_dhcp_options.bdhcp_len,
embedded_dhcp_options.adhcp_len, 0);
ip = IPInfo.myip;
sprintf(dst, "%u.%u.%u.%u",
((const uint8_t *)&ip)[0],
((const uint8_t *)&ip)[1],
((const uint8_t *)&ip)[2],
((const uint8_t *)&ip)[3]);
Print(L"My IP is %a\n", dst);
}
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