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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Michael Chang <mchang@suse.com>
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Date: Wed, 15 Apr 2015 14:48:30 +0800
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Subject: [PATCH] efinet: UEFI IPv6 PXE support
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When grub2 image is booted from UEFI IPv6 PXE, the DHCPv6 Reply packet is
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cached in firmware buffer which can be obtained by PXE Base Code protocol. The
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network interface can be setup through the parameters in that obtained packet.
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Signed-off-by: Michael Chang <mchang@suse.com>
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Signed-off-by: Ken Lin <ken.lin@hpe.com>
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---
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 grub-core/net/drivers/efi/efinet.c |  2 ++
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 include/grub/efi/api.h             | 71 +++++++++++++++++++++++---------------
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 2 files changed, 46 insertions(+), 27 deletions(-)
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diff --git a/grub-core/net/drivers/efi/efinet.c b/grub-core/net/drivers/efi/efinet.c
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index 8e25680db0..014e5bf980 100644
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--- a/grub-core/net/drivers/efi/efinet.c
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+++ b/grub-core/net/drivers/efi/efinet.c
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@@ -409,6 +409,8 @@ grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
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 	  grub_print_error ();
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 	if (device && path)
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 	  grub_dprintf ("efinet", "device: `%s' path: `%s'\n", *device, *path);
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+	if (grub_errno)
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+	  grub_print_error ();
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       }
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     else
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       {
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diff --git a/include/grub/efi/api.h b/include/grub/efi/api.h
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index 7614b58dca..91ab528e4d 100644
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--- a/include/grub/efi/api.h
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+++ b/include/grub/efi/api.h
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@@ -1524,31 +1524,6 @@ typedef union
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   grub_efi_pxe_dhcpv6_packet_t dhcpv6;
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 } grub_efi_pxe_packet_t;
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-#define GRUB_EFI_PXE_MAX_IPCNT 8
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-#define GRUB_EFI_PXE_MAX_ARP_ENTRIES 8
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-#define GRUB_EFI_PXE_MAX_ROUTE_ENTRIES 8
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-
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-typedef struct grub_efi_pxe_ip_filter
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-{
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-  grub_efi_uint8_t filters;
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-  grub_efi_uint8_t ip_count;
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-  grub_efi_uint16_t reserved;
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-  grub_efi_ip_address_t ip_list[GRUB_EFI_PXE_MAX_IPCNT];
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-} grub_efi_pxe_ip_filter_t;
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-
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-typedef struct grub_efi_pxe_arp_entry
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-{
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-  grub_efi_ip_address_t ip_addr;
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-  grub_efi_mac_address_t mac_addr;
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-} grub_efi_pxe_arp_entry_t;
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-
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-typedef struct grub_efi_pxe_route_entry
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-{
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-  grub_efi_ip_address_t ip_addr;
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-  grub_efi_ip_address_t subnet_mask;
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-  grub_efi_ip_address_t gateway_addr;
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-} grub_efi_pxe_route_entry_t;
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-
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 typedef struct grub_efi_pxe_icmp_error
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 {
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   grub_efi_uint8_t type;
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@@ -1574,6 +1549,48 @@ typedef struct grub_efi_pxe_tftp_error
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   grub_efi_char8_t error_string[127];
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 } grub_efi_pxe_tftp_error_t;
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+typedef struct {
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+  grub_uint8_t addr[4];
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+} grub_efi_pxe_ipv4_address_t;
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+
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+typedef struct {
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+  grub_uint8_t addr[16];
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+} grub_efi_pxe_ipv6_address_t;
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+
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+typedef struct {
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+  grub_uint8_t addr[32];
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+} grub_efi_pxe_mac_address_t;
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+
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+typedef union {
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+  grub_uint32_t addr[4];
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+  grub_efi_pxe_ipv4_address_t v4;
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+  grub_efi_pxe_ipv6_address_t v6;
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+} grub_efi_pxe_ip_address_t;
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+
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+#define GRUB_EFI_PXE_BASE_CODE_MAX_IPCNT 8
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+typedef struct grub_efi_pxe_ip_filter
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+{
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+  grub_efi_uint8_t filters;
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+  grub_efi_uint8_t ip_count;
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+  grub_efi_uint16_t reserved;
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+  grub_efi_ip_address_t ip_list[GRUB_EFI_PXE_BASE_CODE_MAX_IPCNT];
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+} grub_efi_pxe_ip_filter_t;
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+
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+typedef struct {
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+  grub_efi_pxe_ip_address_t ip_addr;
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+  grub_efi_pxe_mac_address_t mac_addr;
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+} grub_efi_pxe_arp_entry_t;
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+
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+typedef struct {
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+  grub_efi_pxe_ip_address_t ip_addr;
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+  grub_efi_pxe_ip_address_t subnet_mask;
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+  grub_efi_pxe_ip_address_t gw_addr;
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+} grub_efi_pxe_route_entry_t;
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+
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+
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+#define GRUB_EFI_PXE_BASE_CODE_MAX_ARP_ENTRIES 8
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+#define GRUB_EFI_PXE_BASE_CODE_MAX_ROUTE_ENTRIES 8
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+
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 typedef struct grub_efi_pxe_mode
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 {
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   grub_efi_boolean_t started;
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@@ -1605,9 +1622,9 @@ typedef struct grub_efi_pxe_mode
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   grub_efi_pxe_packet_t pxe_bis_reply;
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   grub_efi_pxe_ip_filter_t ip_filter;
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   grub_efi_uint32_t arp_cache_entries;
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-  grub_efi_pxe_arp_entry_t arp_cache[GRUB_EFI_PXE_MAX_ARP_ENTRIES];
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+  grub_efi_pxe_arp_entry_t arp_cache[GRUB_EFI_PXE_BASE_CODE_MAX_ARP_ENTRIES];
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   grub_efi_uint32_t route_table_entries;
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-  grub_efi_pxe_route_entry_t route_table[GRUB_EFI_PXE_MAX_ROUTE_ENTRIES];
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+  grub_efi_pxe_route_entry_t route_table[GRUB_EFI_PXE_BASE_CODE_MAX_ROUTE_ENTRIES];
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   grub_efi_pxe_icmp_error_t icmp_error;
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   grub_efi_pxe_tftp_error_t tftp_error;
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 } grub_efi_pxe_mode_t;