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base/SOURCES/0200-efinet-and-bootp-add-s...

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From 639509df0b3607b9fbd57ad4ad24ceb0913c8bda Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Wed, 8 Jun 2016 21:03:37 -0400
Subject: [PATCH 200/237] efinet and bootp: add support for dhcpv6
Signed-off-by: Peter Jones <pjones@redhat.com>
---
grub-core/net/bootp.c | 173 +++++++++++++++++++++++++++++++++++++
grub-core/net/drivers/efi/efinet.c | 52 +++++++++--
grub-core/net/net.c | 67 ++++++++++++++
grub-core/net/tftp.c | 4 +
include/grub/efi/api.h | 129 +++++++++++++++++++++++++--
include/grub/net.h | 60 +++++++++++++
6 files changed, 471 insertions(+), 14 deletions(-)
diff --git a/grub-core/net/bootp.c b/grub-core/net/bootp.c
index 88f2056..4793ebc 100644
--- a/grub-core/net/bootp.c
+++ b/grub-core/net/bootp.c
@@ -23,6 +23,7 @@
#include <grub/net/ip.h>
#include <grub/net/netbuff.h>
#include <grub/net/udp.h>
+#include <grub/net/url.h>
#include <grub/datetime.h>
static char *
@@ -335,6 +336,178 @@ grub_net_configure_by_dhcp_ack (const char *name,
return inter;
}
+struct grub_net_network_level_interface *
+grub_net_configure_by_dhcpv6_ack (const char *name,
+ struct grub_net_card *card,
+ grub_net_interface_flags_t flags
+ __attribute__((__unused__)),
+ const grub_net_link_level_address_t *hwaddr,
+ const struct grub_net_dhcpv6_packet *packet,
+ int is_def, char **device, char **path)
+{
+ struct grub_net_network_level_interface *inter = NULL;
+ struct grub_net_network_level_address addr;
+ int mask = -1;
+
+ if (device)
+ *device = 0;
+ if (path)
+ *path = 0;
+
+ grub_dprintf ("net", "mac address is %02x:%02x:%02x:%02x:%02x:%02x\n",
+ hwaddr->mac[0], hwaddr->mac[1], hwaddr->mac[2],
+ hwaddr->mac[3], hwaddr->mac[4], hwaddr->mac[5]);
+
+ if (is_def)
+ grub_net_default_server = 0;
+
+ if (is_def && !grub_net_default_server && packet)
+ {
+ const grub_uint8_t *options = packet->dhcp_options;
+ unsigned int option_max = 1024 - OFFSET_OF (dhcp_options, packet);
+ unsigned int i;
+
+ for (i = 0; i < option_max - sizeof (grub_net_dhcpv6_option_t); )
+ {
+ grub_uint16_t num, len;
+ grub_net_dhcpv6_option_t *opt =
+ (grub_net_dhcpv6_option_t *)(options + i);
+
+ num = grub_be_to_cpu16(opt->option_num);
+ len = grub_be_to_cpu16(opt->option_len);
+
+ grub_dprintf ("net", "got dhcpv6 option %d len %d\n", num, len);
+
+ if (len == 0)
+ break;
+
+ if (len + i > 1024)
+ break;
+
+ if (num == GRUB_NET_DHCP6_BOOTFILE_URL)
+ {
+ char *scheme, *userinfo, *host, *file;
+ char *tmp;
+ int hostlen;
+ int port;
+ int rc = extract_url_info ((const char *)opt->option_data,
+ (grub_size_t)len,
+ &scheme, &userinfo, &host, &port,
+ &file);
+ if (rc < 0)
+ continue;
+
+ /* right now this only handles tftp. */
+ if (grub_strcmp("tftp", scheme))
+ {
+ grub_free (scheme);
+ grub_free (userinfo);
+ grub_free (host);
+ grub_free (file);
+ continue;
+ }
+ grub_free (userinfo);
+
+ hostlen = grub_strlen (host);
+ if (hostlen > 2 && host[0] == '[' && host[hostlen-1] == ']')
+ {
+ tmp = host+1;
+ host[hostlen-1] = '\0';
+ }
+ else
+ tmp = host;
+
+ *device = grub_xasprintf ("%s,%s", scheme, tmp);
+ grub_free (scheme);
+ grub_free (host);
+
+ if (file && *file)
+ {
+ tmp = grub_strrchr (file, '/');
+ if (tmp)
+ *(tmp+1) = '\0';
+ else
+ file[0] = '\0';
+ }
+ else if (!file)
+ file = grub_strdup ("");
+
+ if (file[0] == '/')
+ {
+ *path = grub_strdup (file+1);
+ grub_free (file);
+ }
+ else
+ *path = file;
+ }
+ else if (num == GRUB_NET_DHCP6_IA_NA)
+ {
+ const grub_net_dhcpv6_option_t *ia_na_opt;
+ const grub_net_dhcpv6_opt_ia_na_t *ia_na =
+ (const grub_net_dhcpv6_opt_ia_na_t *)opt;
+ unsigned int left = len - OFFSET_OF (options, ia_na);
+ unsigned int j;
+
+ if ((grub_uint8_t *)ia_na + left >
+ (grub_uint8_t *)options + option_max)
+ left -= ((grub_uint8_t *)ia_na + left)
+ - ((grub_uint8_t *)options + option_max);
+
+ if (len < OFFSET_OF (option_data, opt)
+ + sizeof (grub_net_dhcpv6_option_t))
+ {
+ grub_dprintf ("net",
+ "found dhcpv6 ia_na option with no address\n");
+ continue;
+ }
+
+ for (j = 0; left > sizeof (grub_net_dhcpv6_option_t); )
+ {
+ ia_na_opt = (const grub_net_dhcpv6_option_t *)
+ (ia_na->options + j);
+ grub_uint16_t ia_na_opt_num, ia_na_opt_len;
+
+ ia_na_opt_num = grub_be_to_cpu16 (ia_na_opt->option_num);
+ ia_na_opt_len = grub_be_to_cpu16 (ia_na_opt->option_len);
+ if (ia_na_opt_len == 0)
+ break;
+ if (j + ia_na_opt_len > left)
+ break;
+ if (ia_na_opt_num == GRUB_NET_DHCP6_IA_ADDRESS)
+ {
+ const grub_net_dhcpv6_opt_ia_address_t *ia_addr;
+
+ ia_addr = (const grub_net_dhcpv6_opt_ia_address_t *)
+ ia_na_opt;
+ addr.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6;
+ grub_memcpy(addr.ipv6, ia_addr->ipv6_address,
+ sizeof (ia_addr->ipv6_address));
+ inter = grub_net_add_addr (name, card, &addr, hwaddr, 0);
+ }
+
+ j += ia_na_opt_len;
+ left -= ia_na_opt_len;
+ }
+ }
+
+ i += len + 4;
+ }
+
+ grub_print_error ();
+ }
+
+ if (is_def)
+ {
+ grub_env_set ("net_default_interface", name);
+ grub_env_export ("net_default_interface");
+ }
+
+ if (inter)
+ grub_net_add_ipv6_local (inter, mask);
+ return inter;
+}
+
+
void
grub_net_process_dhcp (struct grub_net_buff *nb,
struct grub_net_card *card)
diff --git a/grub-core/net/drivers/efi/efinet.c b/grub-core/net/drivers/efi/efinet.c
index 3f11243..d7befb2 100644
--- a/grub-core/net/drivers/efi/efinet.c
+++ b/grub-core/net/drivers/efi/efinet.c
@@ -18,11 +18,15 @@
#include <grub/net/netbuff.h>
#include <grub/dl.h>
+#include <grub/env.h>
#include <grub/net.h>
+#include <grub/net/url.h>
#include <grub/time.h>
#include <grub/efi/api.h>
#include <grub/efi/efi.h>
#include <grub/i18n.h>
+#include <grub/lib/hexdump.h>
+#include <grub/types.h>
GRUB_MOD_LICENSE ("GPLv3+");
@@ -339,7 +343,7 @@ grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
char **path)
{
struct grub_net_card *card;
- grub_efi_device_path_t *dp;
+ grub_efi_device_path_t *dp, *ldp = NULL;
dp = grub_efi_get_device_path (hnd);
if (! dp)
@@ -350,14 +354,19 @@ grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
grub_efi_device_path_t *cdp;
struct grub_efi_pxe *pxe;
struct grub_efi_pxe_mode *pxe_mode;
+
if (card->driver != &efidriver)
continue;
+
cdp = grub_efi_get_device_path (card->efi_handle);
if (! cdp)
continue;
+
+ ldp = grub_efi_find_last_device_path (dp);
+
if (grub_efi_compare_device_paths (dp, cdp) != 0)
{
- grub_efi_device_path_t *ldp, *dup_dp, *dup_ldp;
+ grub_efi_device_path_t *dup_dp, *dup_ldp;
int match;
/* EDK2 UEFI PXE driver creates pseudo devices with type IPv4/IPv6
@@ -366,7 +375,6 @@ grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
devices. We skip them when enumerating cards, so here we need to
find matching MAC device.
*/
- ldp = grub_efi_find_last_device_path (dp);
if (GRUB_EFI_DEVICE_PATH_TYPE (ldp) != GRUB_EFI_MESSAGING_DEVICE_PATH_TYPE
|| (GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) != GRUB_EFI_IPV4_DEVICE_PATH_SUBTYPE
&& GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) != GRUB_EFI_IPV6_DEVICE_PATH_SUBTYPE))
@@ -383,16 +391,44 @@ grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
if (!match)
continue;
}
+
pxe = grub_efi_open_protocol (hnd, &pxe_io_guid,
GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL);
if (! pxe)
continue;
+
pxe_mode = pxe->mode;
- grub_net_configure_by_dhcp_ack (card->name, card, 0,
- (struct grub_net_bootp_packet *)
- &pxe_mode->dhcp_ack,
- sizeof (pxe_mode->dhcp_ack),
- 1, device, path);
+ if (pxe_mode->using_ipv6)
+ {
+ grub_net_link_level_address_t hwaddr;
+
+ grub_dprintf ("efinet", "using ipv6 and dhcpv6\n");
+ grub_dprintf ("efinet", "dhcp_ack_received: %s%s\n",
+ pxe_mode->dhcp_ack_received ? "yes" : "no",
+ pxe_mode->dhcp_ack_received ? "" : " cannot continue");
+ if (!pxe_mode->dhcp_ack_received)
+ continue;
+
+ hwaddr.type = GRUB_NET_LINK_LEVEL_PROTOCOL_ETHERNET;
+ grub_memcpy (hwaddr.mac,
+ card->efi_net->mode->current_address,
+ sizeof (hwaddr.mac));
+
+ grub_net_configure_by_dhcpv6_ack (card->name, card, 0,
+ &hwaddr, &pxe_mode->dhcp_ack,
+ 1, device, path);
+ grub_dprintf ("efinet", "device: `%s' path: `%s'\n", *device, *path);
+ }
+ else
+ {
+ grub_dprintf ("efinet", "using ipv4 and dhcp\n");
+ grub_net_configure_by_dhcp_ack (card->name, card, 0,
+ (struct grub_net_bootp_packet *)
+ &pxe_mode->dhcp_ack,
+ sizeof (pxe_mode->dhcp_ack),
+ 1, device, path);
+ grub_dprintf ("efinet", "device: `%s' path: `%s'\n", *device, *path);
+ }
return;
}
}
diff --git a/grub-core/net/net.c b/grub-core/net/net.c
index b10addb..81d3b62 100644
--- a/grub-core/net/net.c
+++ b/grub-core/net/net.c
@@ -969,6 +969,73 @@ grub_net_network_level_interface_register (struct grub_net_network_level_interfa
grub_net_network_level_interfaces = inter;
}
+int
+grub_ipv6_get_masksize(grub_uint8_t *be_mask)
+{
+ grub_uint8_t *mask;
+ grub_uint16_t mask16[8];
+ unsigned int x;
+ int ret = 0;
+
+ grub_memcpy (mask16, be_mask, sizeof(mask16));
+ for (x = 0; x < 8; x++)
+ mask16[x] = grub_be_to_cpu16 (mask16[x]);
+
+ mask = (grub_uint8_t *)mask16;
+
+ for (x = 15; x > 0; x++)
+ {
+ grub_uint8_t octet = mask[x];
+ while (octet & 0x80)
+ {
+ ret++;
+ octet <<= 1;
+ }
+ if (ret)
+ ret += 8 * (15 - x);
+ break;
+ }
+
+ return ret;
+}
+
+grub_err_t
+grub_net_add_ipv6_local (struct grub_net_network_level_interface *inter,
+ int mask)
+{
+ struct grub_net_route *route;
+
+ if (inter->address.type != GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6)
+ return 0;
+
+ if (mask == -1)
+ mask = grub_ipv6_get_masksize ((grub_uint8_t *)inter->address.ipv6);
+
+ if (mask == -1)
+ return 0;
+
+ route = grub_zalloc (sizeof (*route));
+ if (!route)
+ return grub_errno;
+
+ route->name = grub_xasprintf ("%s:local", inter->name);
+ if (!route->name)
+ {
+ grub_free (route);
+ return grub_errno;
+ }
+
+ route->target.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6;
+ grub_memcpy (route->target.ipv6.base, inter->address.ipv6,
+ sizeof (inter->address.ipv6));
+ route->target.ipv6.masksize = mask;
+ route->is_gateway = 0;
+ route->interface = inter;
+
+ grub_net_route_register (route);
+
+ return 0;
+}
grub_err_t
grub_net_add_ipv4_local (struct grub_net_network_level_interface *inter,
diff --git a/grub-core/net/tftp.c b/grub-core/net/tftp.c
index 5173614..22a4deb 100644
--- a/grub-core/net/tftp.c
+++ b/grub-core/net/tftp.c
@@ -370,18 +370,22 @@ tftp_open (struct grub_file *file, const char *filename)
if (!data->pq)
return grub_errno;
+ grub_dprintf("tftp", "resolving address for %s\n", file->device->net->server);
err = grub_net_resolve_address (file->device->net->server, &addr);
if (err)
{
+ grub_dprintf("tftp", "Address resolution failed: %d\n", err);
destroy_pq (data);
return err;
}
+ grub_dprintf("tftp", "opening connection\n");
data->sock = grub_net_udp_open (addr,
TFTP_SERVER_PORT, tftp_receive,
file);
if (!data->sock)
{
+ grub_dprintf("tftp", "connection failed\n");
destroy_pq (data);
return grub_errno;
}
diff --git a/include/grub/efi/api.h b/include/grub/efi/api.h
index a6cce6e..9422ba9 100644
--- a/include/grub/efi/api.h
+++ b/include/grub/efi/api.h
@@ -527,10 +527,16 @@ typedef void *grub_efi_handle_t;
typedef void *grub_efi_event_t;
typedef grub_efi_uint64_t grub_efi_lba_t;
typedef grub_efi_uintn_t grub_efi_tpl_t;
-typedef grub_uint8_t grub_efi_mac_address_t[32];
-typedef grub_uint8_t grub_efi_ipv4_address_t[4];
-typedef grub_uint16_t grub_efi_ipv6_address_t[8];
-typedef grub_uint8_t grub_efi_ip_address_t[8] __attribute__ ((aligned(4)));
+typedef grub_efi_uint8_t grub_efi_mac_address_t[32];
+typedef grub_efi_uint8_t grub_efi_ipv4_address_t[4];
+typedef grub_efi_uint8_t grub_efi_ipv6_address_t[16];
+typedef union
+{
+ grub_efi_uint32_t addr[4];
+ grub_efi_ipv4_address_t v4;
+ grub_efi_ipv6_address_t v6;
+} grub_efi_ip_address_t __attribute__ ((aligned(4)));
+
typedef grub_efi_uint64_t grub_efi_physical_address_t;
typedef grub_efi_uint64_t grub_efi_virtual_address_t;
@@ -1405,16 +1411,127 @@ struct grub_efi_simple_text_output_interface
};
typedef struct grub_efi_simple_text_output_interface grub_efi_simple_text_output_interface_t;
-typedef grub_uint8_t grub_efi_pxe_packet_t[1472];
+typedef struct grub_efi_pxe_dhcpv4_packet
+{
+ grub_efi_uint8_t bootp_opcode;
+ grub_efi_uint8_t bootp_hwtype;
+ grub_efi_uint8_t bootp_hwaddr_len;
+ grub_efi_uint8_t bootp_gate_hops;
+ grub_efi_uint32_t bootp_ident;
+ grub_efi_uint16_t bootp_seconds;
+ grub_efi_uint16_t bootp_flags;
+ grub_efi_uint8_t bootp_ci_addr[4];
+ grub_efi_uint8_t bootp_yi_addr[4];
+ grub_efi_uint8_t bootp_si_addr[4];
+ grub_efi_uint8_t bootp_gi_addr[4];
+ grub_efi_uint8_t bootp_hw_addr[16];
+ grub_efi_uint8_t bootp_srv_name[64];
+ grub_efi_uint8_t bootp_boot_file[128];
+ grub_efi_uint32_t dhcp_magik;
+ grub_efi_uint8_t dhcp_options[56];
+} grub_efi_pxe_dhcpv4_packet_t;
+
+struct grub_efi_pxe_dhcpv6_packet
+{
+ grub_efi_uint32_t message_type:8;
+ grub_efi_uint32_t transaction_id:24;
+ grub_efi_uint8_t dhcp_options[1024];
+} GRUB_PACKED;
+typedef struct grub_efi_pxe_dhcpv6_packet grub_efi_pxe_dhcpv6_packet_t;
+
+typedef union
+{
+ grub_efi_uint8_t raw[1472];
+ grub_efi_pxe_dhcpv4_packet_t dhcpv4;
+ grub_efi_pxe_dhcpv6_packet_t dhcpv6;
+} grub_efi_pxe_packet_t;
+
+#define GRUB_EFI_PXE_MAX_IPCNT 8
+#define GRUB_EFI_PXE_MAX_ARP_ENTRIES 8
+#define GRUB_EFI_PXE_MAX_ROUTE_ENTRIES 8
+
+typedef struct grub_efi_pxe_ip_filter
+{
+ grub_efi_uint8_t filters;
+ grub_efi_uint8_t ip_count;
+ grub_efi_uint8_t reserved;
+ grub_efi_ip_address_t ip_list[GRUB_EFI_PXE_MAX_IPCNT];
+} grub_efi_pxe_ip_filter_t;
+
+typedef struct grub_efi_pxe_arp_entry
+{
+ grub_efi_ip_address_t ip_addr;
+ grub_efi_mac_address_t mac_addr;
+} grub_efi_pxe_arp_entry_t;
+
+typedef struct grub_efi_pxe_route_entry
+{
+ grub_efi_ip_address_t ip_addr;
+ grub_efi_ip_address_t subnet_mask;
+ grub_efi_ip_address_t gateway_addr;
+} grub_efi_pxe_route_entry_t;
+
+typedef struct grub_efi_pxe_icmp_error
+{
+ grub_efi_uint8_t type;
+ grub_efi_uint8_t code;
+ grub_efi_uint16_t checksum;
+ union
+ {
+ grub_efi_uint32_t reserved;
+ grub_efi_uint32_t mtu;
+ grub_efi_uint32_t pointer;
+ struct
+ {
+ grub_efi_uint16_t identifier;
+ grub_efi_uint16_t sequence;
+ } echo;
+ } u;
+ grub_efi_uint8_t data[494];
+} grub_efi_pxe_icmp_error_t;
+
+typedef struct grub_efi_pxe_tftp_error
+{
+ grub_efi_uint8_t error_code;
+ grub_efi_char8_t error_string[127];
+} grub_efi_pxe_tftp_error_t;
typedef struct grub_efi_pxe_mode
{
- grub_uint8_t unused[52];
+ grub_efi_boolean_t started;
+ grub_efi_boolean_t ipv6_available;
+ grub_efi_boolean_t ipv6_supported;
+ grub_efi_boolean_t using_ipv6;
+ grub_efi_boolean_t bis_supported;
+ grub_efi_boolean_t bis_detected;
+ grub_efi_boolean_t auto_arp;
+ grub_efi_boolean_t send_guid;
+ grub_efi_boolean_t dhcp_discover_valid;
+ grub_efi_boolean_t dhcp_ack_received;
+ grub_efi_boolean_t proxy_offer_received;
+ grub_efi_boolean_t pxe_discover_valid;
+ grub_efi_boolean_t pxe_reply_received;
+ grub_efi_boolean_t pxe_bis_reply_received;
+ grub_efi_boolean_t icmp_error_received;
+ grub_efi_boolean_t tftp_error_received;
+ grub_efi_boolean_t make_callbacks;
+ grub_efi_uint8_t ttl;
+ grub_efi_uint8_t tos;
+ grub_efi_ip_address_t station_ip;
+ grub_efi_ip_address_t subnet_mask;
grub_efi_pxe_packet_t dhcp_discover;
grub_efi_pxe_packet_t dhcp_ack;
grub_efi_pxe_packet_t proxy_offer;
grub_efi_pxe_packet_t pxe_discover;
grub_efi_pxe_packet_t pxe_reply;
+ grub_efi_pxe_packet_t pxe_bis_reply;
+ grub_efi_pxe_ip_filter_t ip_filter;
+ grub_efi_uint32_t arp_cache_entries;
+ grub_efi_pxe_arp_entry_t arp_cache[GRUB_EFI_PXE_MAX_ARP_ENTRIES];
+ grub_efi_uint32_t route_table_entries;
+ grub_efi_pxe_route_entry_t route_table[GRUB_EFI_PXE_MAX_ROUTE_ENTRIES];
+ grub_efi_pxe_icmp_error_t icmp_error;
+ grub_efi_pxe_tftp_error_t tftp_error;
} grub_efi_pxe_mode_t;
typedef struct grub_efi_pxe
diff --git a/include/grub/net.h b/include/grub/net.h
index 88fc71c..c7b8e2a 100644
--- a/include/grub/net.h
+++ b/include/grub/net.h
@@ -418,6 +418,51 @@ struct grub_net_bootp_packet
grub_uint8_t vendor[0];
} GRUB_PACKED;
+enum
+ {
+ GRUB_NET_DHCP6_IA_NA = 3,
+ GRUB_NET_DHCP6_IA_ADDRESS = 5,
+ GRUB_NET_DHCP6_BOOTFILE_URL = 59,
+ };
+
+struct grub_net_dhcpv6_option
+{
+ grub_uint16_t option_num;
+ grub_uint16_t option_len;
+ grub_uint8_t option_data[];
+} GRUB_PACKED;
+typedef struct grub_net_dhcpv6_option grub_net_dhcpv6_option_t;
+
+struct grub_net_dhcpv6_opt_ia_na
+{
+ grub_uint16_t option_num;
+ grub_uint16_t option_len;
+ grub_uint32_t iaid;
+ grub_uint32_t t1;
+ grub_uint32_t t2;
+ grub_uint8_t options[];
+} GRUB_PACKED;
+typedef struct grub_net_dhcpv6_opt_ia_na grub_net_dhcpv6_opt_ia_na_t;
+
+struct grub_net_dhcpv6_opt_ia_address
+{
+ grub_uint16_t option_num;
+ grub_uint16_t option_len;
+ grub_uint64_t ipv6_address[2];
+ grub_uint32_t preferred_lifetime;
+ grub_uint32_t valid_lifetime;
+ grub_uint8_t options[];
+} GRUB_PACKED;
+typedef struct grub_net_dhcpv6_opt_ia_address grub_net_dhcpv6_opt_ia_address_t;
+
+struct grub_net_dhcpv6_packet
+{
+ grub_uint32_t message_type:8;
+ grub_uint32_t transaction_id:24;
+ grub_uint8_t dhcp_options[1024];
+} GRUB_PACKED;
+typedef struct grub_net_dhcpv6_packet grub_net_dhcpv6_packet_t;
+
#define GRUB_NET_BOOTP_RFC1048_MAGIC_0 0x63
#define GRUB_NET_BOOTP_RFC1048_MAGIC_1 0x82
#define GRUB_NET_BOOTP_RFC1048_MAGIC_2 0x53
@@ -446,6 +491,21 @@ grub_net_configure_by_dhcp_ack (const char *name,
grub_size_t size,
int is_def, char **device, char **path);
+struct grub_net_network_level_interface *
+grub_net_configure_by_dhcpv6_ack (const char *name,
+ struct grub_net_card *card,
+ grub_net_interface_flags_t flags,
+ const grub_net_link_level_address_t *hwaddr,
+ const struct grub_net_dhcpv6_packet *packet,
+ int is_def, char **device, char **path);
+
+int
+grub_ipv6_get_masksize(grub_uint8_t *mask);
+
+grub_err_t
+grub_net_add_ipv6_local (struct grub_net_network_level_interface *inf,
+ int mask);
+
grub_err_t
grub_net_add_ipv4_local (struct grub_net_network_level_interface *inf,
int mask);
--
2.9.3