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#include <grub/mm.h>
#include <grub/command.h>
#include <grub/efi/api.h>
#include <grub/efi/efi.h>
#include <grub/misc.h>
#include <grub/net/efi.h>
#include <grub/charset.h>
#ifdef GRUB_EFI_NET_DEBUG
static void
dhcp4_mode_print (grub_efi_dhcp4_mode_data_t *mode)
{
switch (mode->state)
{
case GRUB_EFI_DHCP4_STOPPED:
grub_printf ("STATE: STOPPED\n");
break;
case GRUB_EFI_DHCP4_INIT:
grub_printf ("STATE: INIT\n");
break;
case GRUB_EFI_DHCP4_SELECTING:
grub_printf ("STATE: SELECTING\n");
break;
case GRUB_EFI_DHCP4_REQUESTING:
grub_printf ("STATE: REQUESTING\n");
break;
case GRUB_EFI_DHCP4_BOUND:
grub_printf ("STATE: BOUND\n");
break;
case GRUB_EFI_DHCP4_RENEWING:
grub_printf ("STATE: RENEWING\n");
break;
case GRUB_EFI_DHCP4_REBINDING:
grub_printf ("STATE: REBINDING\n");
break;
case GRUB_EFI_DHCP4_INIT_REBOOT:
grub_printf ("STATE: INIT_REBOOT\n");
break;
case GRUB_EFI_DHCP4_REBOOTING:
grub_printf ("STATE: REBOOTING\n");
break;
default:
grub_printf ("STATE: UNKNOWN\n");
break;
}
grub_printf ("CLIENT_ADDRESS: %u.%u.%u.%u\n",
mode->client_address[0],
mode->client_address[1],
mode->client_address[2],
mode->client_address[3]);
grub_printf ("SERVER_ADDRESS: %u.%u.%u.%u\n",
mode->server_address[0],
mode->server_address[1],
mode->server_address[2],
mode->server_address[3]);
grub_printf ("SUBNET_MASK: %u.%u.%u.%u\n",
mode->subnet_mask[0],
mode->subnet_mask[1],
mode->subnet_mask[2],
mode->subnet_mask[3]);
grub_printf ("ROUTER_ADDRESS: %u.%u.%u.%u\n",
mode->router_address[0],
mode->router_address[1],
mode->router_address[2],
mode->router_address[3]);
}
#endif
static grub_efi_ipv4_address_t *
grub_efi_dhcp4_parse_dns (grub_efi_dhcp4_protocol_t *dhcp4, grub_efi_dhcp4_packet_t *reply_packet)
{
grub_efi_dhcp4_packet_option_t **option_list;
grub_efi_status_t status;
grub_efi_uint32_t option_count = 0;
grub_efi_uint32_t i;
status = dhcp4->parse (dhcp4, reply_packet, &option_count, NULL);
if (status != GRUB_EFI_BUFFER_TOO_SMALL)
return NULL;
option_list = grub_calloc (option_count, sizeof (*option_list));
if (!option_list)
return NULL;
status = dhcp4->parse ( dhcp4, reply_packet, &option_count, option_list);
if (status != GRUB_EFI_SUCCESS)
{
grub_free (option_list);
return NULL;
}
for (i = 0; i < option_count; ++i)
{
if (option_list[i]->op_code == 6)
{
grub_efi_ipv4_address_t *dns_address;
if (((option_list[i]->length & 0x3) != 0) || (option_list[i]->length == 0))
continue;
/* We only contact primary dns */
dns_address = grub_malloc (sizeof (*dns_address));
if (!dns_address)
{
grub_free (option_list);
return NULL;
}
grub_memcpy (dns_address, option_list[i]->data, sizeof (dns_address));
grub_free (option_list);
return dns_address;
}
}
grub_free (option_list);
return NULL;
}
static grub_err_t
grub_cmd_efi_bootp (struct grub_command *cmd __attribute__ ((unused)),
int argc,
char **args)
{
struct grub_efi_net_device *netdev;
for (netdev = net_devices; netdev; netdev = netdev->next)
{
grub_efi_status_t status;
grub_efi_dhcp4_mode_data_t mode;
grub_efi_dhcp4_config_data_t config;
grub_efi_dhcp4_packet_option_t *options;
grub_efi_ipv4_address_t *dns_address;
grub_efi_net_ip_manual_address_t net_ip;
grub_efi_net_ip_address_t ip_addr;
grub_efi_net_interface_t *inf = NULL;
if (argc > 0 && grub_strcmp (netdev->card_name, args[0]) != 0)
continue;
grub_memset (&config, 0, sizeof (config));
config.option_count = 1;
options = grub_malloc (sizeof (*options) + 2);
/* Parameter request list */
options->op_code = 55;
options->length = 3;
/* subnet mask */
options->data[0] = 1;
/* router */
options->data[1] = 3;
/* DNS */
options->data[2] = 6;
config.option_list = &options;
/* FIXME: What if the dhcp has bounded */
status = netdev->dhcp4->configure (netdev->dhcp4, &config);
grub_free (options);
if (status != GRUB_EFI_SUCCESS)
{
grub_printf ("dhcp4 configure failed, %d\n", (int) status);
continue;
}
status = netdev->dhcp4->start (netdev->dhcp4, NULL);
if (status != GRUB_EFI_SUCCESS)
{
grub_printf ("dhcp4 start failed, %d\n", (int) status);
continue;
}
status = netdev->dhcp4->get_mode_data (netdev->dhcp4, &mode);
if (status != GRUB_EFI_SUCCESS)
{
grub_printf ("dhcp4 get mode failed, %d\n", (int) status);
continue;
}
#ifdef GRUB_EFI_NET_DEBUG
dhcp4_mode_print (&mode);
#endif
for (inf = netdev->net_interfaces; inf; inf = inf->next)
if (inf->prefer_ip6 == 0)
break;
grub_memcpy (net_ip.ip4.address, mode.client_address, sizeof (net_ip.ip4.address));
grub_memcpy (net_ip.ip4.subnet_mask, mode.subnet_mask, sizeof (net_ip.ip4.subnet_mask));
if (!inf)
{
char *name = grub_xasprintf ("%s:dhcp", netdev->card_name);
net_ip.is_ip6 = 0;
inf = grub_efi_net_create_interface (netdev, name, &net_ip, 1);
grub_free (name);
}
else
{
efi_net_interface_set_address (inf, &net_ip, 1);
}
grub_memcpy (ip_addr.ip4, mode.router_address, sizeof (ip_addr.ip4));
efi_net_interface_set_gateway (inf, &ip_addr);
dns_address = grub_efi_dhcp4_parse_dns (netdev->dhcp4, mode.reply_packet);
if (dns_address)
efi_net_interface_set_dns (inf, (grub_efi_net_ip_address_t *) &dns_address);
}
return GRUB_ERR_NONE;
}
static grub_err_t
grub_cmd_efi_bootp6 (struct grub_command *cmd __attribute__ ((unused)),
int argc, char **args)
{
struct grub_efi_net_device *dev;
grub_efi_uint32_t ia_id;
for (dev = net_devices, ia_id = 0; dev; dev = dev->next, ia_id++)
{
grub_efi_dhcp6_config_data_t config;
grub_efi_dhcp6_packet_option_t *option_list[1];
grub_efi_dhcp6_packet_option_t *opt;
grub_efi_status_t status;
grub_efi_dhcp6_mode_data_t mode;
grub_efi_dhcp6_retransmission_t retrans;
grub_efi_net_ip_manual_address_t net_ip;
grub_efi_boot_services_t *b = grub_efi_system_table->boot_services;
grub_efi_net_interface_t *inf = NULL;
if (argc > 0 && grub_strcmp (dev->card_name, args[0]) != 0)
continue;
opt = grub_malloc (sizeof (*opt) + 2 * sizeof (grub_efi_uint16_t));
#define GRUB_EFI_DHCP6_OPT_ORO 6
opt->op_code = grub_cpu_to_be16_compile_time (GRUB_EFI_DHCP6_OPT_ORO);
opt->op_len = grub_cpu_to_be16_compile_time (2 * sizeof (grub_efi_uint16_t));
#define GRUB_EFI_DHCP6_OPT_BOOT_FILE_URL 59
#define GRUB_EFI_DHCP6_OPT_DNS_SERVERS 23
grub_set_unaligned16 (opt->data, grub_cpu_to_be16_compile_time (GRUB_EFI_DHCP6_OPT_BOOT_FILE_URL));
grub_set_unaligned16 (opt->data + 1 * sizeof (grub_efi_uint16_t),
grub_cpu_to_be16_compile_time (GRUB_EFI_DHCP6_OPT_DNS_SERVERS));
option_list[0] = opt;
retrans.irt = 4;
retrans.mrc = 4;
retrans.mrt = 32;
retrans.mrd = 60;
config.dhcp6_callback = NULL;
config.callback_context = NULL;
config.option_count = 1;
config.option_list = option_list;
config.ia_descriptor.ia_id = ia_id;
config.ia_descriptor.type = GRUB_EFI_DHCP6_IA_TYPE_NA;
config.ia_info_event = NULL;
config.reconfigure_accept = 0;
config.rapid_commit = 0;
config.solicit_retransmission = &retrans;
status = dev->dhcp6->configure (dev->dhcp6, &config);
grub_free (opt);
if (status != GRUB_EFI_SUCCESS)
{
grub_printf ("dhcp6 configure failed, %d\n", (int) status);
continue;
}
status = dev->dhcp6->start (dev->dhcp6);
if (status != GRUB_EFI_SUCCESS)
{
grub_printf ("dhcp6 start failed, %d\n", (int) status);
continue;
}
status = dev->dhcp6->get_mode_data (dev->dhcp6, &mode, NULL);
if (status != GRUB_EFI_SUCCESS)
{
grub_printf ("dhcp4 get mode failed, %d\n", (int) status);
continue;
}
for (inf = dev->net_interfaces; inf; inf = inf->next)
if (inf->prefer_ip6 == 1)
break;
grub_memcpy (net_ip.ip6.address, mode.ia->ia_address[0].ip_address, sizeof (net_ip.ip6.address));
net_ip.ip6.prefix_length = 64;
net_ip.ip6.is_anycast = 0;
net_ip.is_ip6 = 1;
if (!inf)
{
char *name = grub_xasprintf ("%s:dhcp", dev->card_name);
inf = grub_efi_net_create_interface (dev, name, &net_ip, 1);
grub_free (name);
}
else
{
efi_net_interface_set_address (inf, &net_ip, 1);
}
{
grub_efi_uint32_t count = 0;
grub_efi_dhcp6_packet_option_t **options = NULL;
grub_efi_uint32_t i;
status = dev->dhcp6->parse (dev->dhcp6, mode.ia->reply_packet, &count, NULL);
if (status == GRUB_EFI_BUFFER_TOO_SMALL && count)
{
options = grub_calloc (count, sizeof (*options));
if (options)
status = dev->dhcp6->parse (dev->dhcp6, mode.ia->reply_packet, &count, options);
else
status = GRUB_EFI_OUT_OF_RESOURCES;
}
if (status != GRUB_EFI_SUCCESS)
{
if (options)
grub_free (options);
continue;
}
for (i = 0; i < count; ++i)
{
if (options[i]->op_code == grub_cpu_to_be16_compile_time (GRUB_EFI_DHCP6_OPT_DNS_SERVERS))
{
grub_efi_net_ip_address_t dns;
grub_memcpy (dns.ip6, options[i]->data, sizeof (net_ip.ip6));
efi_net_interface_set_dns (inf, &dns);
break;
}
}
if (options)
grub_free (options);
}
b->free_pool (mode.client_id);
b->free_pool (mode.ia);
}
return GRUB_ERR_NONE;
}
grub_command_func_t grub_efi_net_bootp = grub_cmd_efi_bootp;
grub_command_func_t grub_efi_net_bootp6 = grub_cmd_efi_bootp6;
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