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-rw-r--r--include/grub/net.h583
1 files changed, 583 insertions, 0 deletions
diff --git a/include/grub/net.h b/include/grub/net.h
new file mode 100644
index 0000000..7ae4b6b
--- /dev/null
+++ b/include/grub/net.h
@@ -0,0 +1,583 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2010,2011 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_NET_HEADER
+#define GRUB_NET_HEADER 1
+
+#include <grub/types.h>
+#include <grub/err.h>
+#include <grub/list.h>
+#include <grub/fs.h>
+#include <grub/file.h>
+#include <grub/mm.h>
+#include <grub/net/netbuff.h>
+
+enum
+ {
+ GRUB_NET_MAX_LINK_HEADER_SIZE = 64,
+ GRUB_NET_UDP_HEADER_SIZE = 8,
+ GRUB_NET_TCP_HEADER_SIZE = 20,
+ GRUB_NET_OUR_IPV4_HEADER_SIZE = 20,
+ GRUB_NET_OUR_IPV6_HEADER_SIZE = 40,
+ GRUB_NET_OUR_MAX_IP_HEADER_SIZE = 40,
+ GRUB_NET_TCP_RESERVE_SIZE = GRUB_NET_TCP_HEADER_SIZE
+ + GRUB_NET_OUR_IPV4_HEADER_SIZE
+ + GRUB_NET_MAX_LINK_HEADER_SIZE
+ };
+
+typedef enum grub_link_level_protocol_id
+{
+ GRUB_NET_LINK_LEVEL_PROTOCOL_ETHERNET
+} grub_link_level_protocol_id_t;
+
+typedef struct grub_net_link_level_address
+{
+ grub_link_level_protocol_id_t type;
+ union
+ {
+ grub_uint8_t mac[6];
+ };
+} grub_net_link_level_address_t;
+
+typedef enum grub_net_interface_flags
+ {
+ GRUB_NET_INTERFACE_HWADDRESS_IMMUTABLE = 1,
+ GRUB_NET_INTERFACE_ADDRESS_IMMUTABLE = 2,
+ GRUB_NET_INTERFACE_PERMANENT = 4
+ } grub_net_interface_flags_t;
+
+typedef enum grub_net_card_flags
+ {
+ GRUB_NET_CARD_HWADDRESS_IMMUTABLE = 1,
+ GRUB_NET_CARD_NO_MANUAL_INTERFACES = 2
+ } grub_net_card_flags_t;
+
+struct grub_net_card;
+
+struct grub_net_card_driver
+{
+ struct grub_net_card_driver *next;
+ struct grub_net_card_driver **prev;
+ const char *name;
+ grub_err_t (*open) (struct grub_net_card *dev);
+ void (*close) (struct grub_net_card *dev);
+ grub_err_t (*send) (struct grub_net_card *dev,
+ struct grub_net_buff *buf);
+ struct grub_net_buff * (*recv) (struct grub_net_card *dev);
+};
+
+typedef struct grub_net_packet
+{
+ struct grub_net_packet *next;
+ struct grub_net_packet *prev;
+ struct grub_net_packets *up;
+ struct grub_net_buff *nb;
+} grub_net_packet_t;
+
+typedef struct grub_net_packets
+{
+ grub_net_packet_t *first;
+ grub_net_packet_t *last;
+ grub_size_t count;
+} grub_net_packets_t;
+
+#ifdef GRUB_MACHINE_EFI
+#include <grub/efi/api.h>
+#endif
+
+struct grub_net_slaac_mac_list
+{
+ struct grub_net_slaac_mac_list *next;
+ struct grub_net_slaac_mac_list **prev;
+ grub_net_link_level_address_t address;
+ int slaac_counter;
+ char *name;
+};
+
+struct grub_net_link_layer_entry;
+
+struct grub_net_card
+{
+ struct grub_net_card *next;
+ struct grub_net_card **prev;
+ const char *name;
+ struct grub_net_card_driver *driver;
+ grub_net_link_level_address_t default_address;
+ grub_net_card_flags_t flags;
+ int num_ifaces;
+ int opened;
+ unsigned idle_poll_delay_ms;
+ grub_uint64_t last_poll;
+ grub_size_t mtu;
+ struct grub_net_slaac_mac_list *slaac_list;
+ grub_ssize_t new_ll_entry;
+ struct grub_net_link_layer_entry *link_layer_table;
+ void *txbuf;
+ void *rcvbuf;
+ grub_size_t rcvbufsize;
+ grub_size_t txbufsize;
+ int txbusy;
+ union
+ {
+#ifdef GRUB_MACHINE_EFI
+ struct
+ {
+ struct grub_efi_simple_network *efi_net;
+ grub_efi_handle_t efi_handle;
+ grub_size_t last_pkt_size;
+ };
+#endif
+ void *data;
+ int data_num;
+ };
+};
+
+struct grub_net_network_level_interface;
+
+typedef enum grub_network_level_protocol_id
+{
+ GRUB_NET_NETWORK_LEVEL_PROTOCOL_DHCP_RECV,
+ GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4,
+ GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6
+} grub_network_level_protocol_id_t;
+
+typedef enum
+{
+ DNS_OPTION_IPV4,
+ DNS_OPTION_IPV6,
+ DNS_OPTION_PREFER_IPV4,
+ DNS_OPTION_PREFER_IPV6
+} grub_dns_option_t;
+
+typedef struct grub_net_network_level_address
+{
+ grub_network_level_protocol_id_t type;
+ union
+ {
+ grub_uint32_t ipv4;
+ grub_uint64_t ipv6[2];
+ };
+ grub_dns_option_t option;
+} grub_net_network_level_address_t;
+
+typedef struct grub_net_network_level_netaddress
+{
+ grub_network_level_protocol_id_t type;
+ union
+ {
+ struct {
+ grub_uint32_t base;
+ int masksize;
+ } ipv4;
+ struct {
+ grub_uint64_t base[2];
+ int masksize;
+ } ipv6;
+ };
+} grub_net_network_level_netaddress_t;
+
+struct grub_net_route
+{
+ struct grub_net_route *next;
+ struct grub_net_route **prev;
+ grub_net_network_level_netaddress_t target;
+ char *name;
+ struct grub_net_network_level_protocol *prot;
+ int is_gateway;
+ struct grub_net_network_level_interface *interface;
+ grub_net_network_level_address_t gw;
+};
+
+#define FOR_PACKETS(cont,var) for (var = (cont).first; var; var = var->next)
+
+static inline grub_err_t
+grub_net_put_packet (grub_net_packets_t *pkts, struct grub_net_buff *nb)
+{
+ struct grub_net_packet *n;
+
+ n = grub_malloc (sizeof (*n));
+ if (!n)
+ return grub_errno;
+
+ n->nb = nb;
+ n->next = NULL;
+ n->prev = NULL;
+ n->up = pkts;
+ if (pkts->first)
+ {
+ pkts->last->next = n;
+ pkts->last = n;
+ n->prev = pkts->last;
+ }
+ else
+ pkts->first = pkts->last = n;
+
+ pkts->count++;
+
+ return GRUB_ERR_NONE;
+}
+
+static inline void
+grub_net_remove_packet (grub_net_packet_t *pkt)
+{
+ pkt->up->count--;
+
+ if (pkt->prev)
+ pkt->prev->next = pkt->next;
+ else
+ pkt->up->first = pkt->next;
+ if (pkt->next)
+ pkt->next->prev = pkt->prev;
+ else
+ pkt->up->last = pkt->prev;
+ grub_free (pkt);
+}
+
+typedef struct grub_net_app_protocol *grub_net_app_level_t;
+
+typedef struct grub_net_socket *grub_net_socket_t;
+
+struct grub_net_app_protocol
+{
+ struct grub_net_app_protocol *next;
+ struct grub_net_app_protocol **prev;
+ const char *name;
+ grub_err_t (*dir) (grub_device_t device, const char *path,
+ int (*hook) (const char *filename,
+ const struct grub_dirhook_info *info));
+ grub_err_t (*open) (struct grub_file *file, const char *filename);
+ grub_err_t (*seek) (struct grub_file *file, grub_off_t off);
+ grub_err_t (*close) (struct grub_file *file);
+ grub_err_t (*packets_pulled) (struct grub_file *file);
+};
+
+typedef struct grub_net
+{
+ char *server;
+ char *name;
+ grub_net_app_level_t protocol;
+ grub_net_packets_t packs;
+ grub_off_t offset;
+ grub_fs_t fs;
+ int eof;
+ int stall;
+} *grub_net_t;
+
+extern grub_net_t (*EXPORT_VAR (grub_net_open)) (const char *name);
+
+struct grub_net_network_level_interface
+{
+ struct grub_net_network_level_interface *next;
+ struct grub_net_network_level_interface **prev;
+ char *name;
+ struct grub_net_card *card;
+ grub_net_network_level_address_t address;
+ grub_net_link_level_address_t hwaddress;
+ grub_net_interface_flags_t flags;
+ struct grub_net_bootp_packet *dhcp_ack;
+ grub_size_t dhcp_acklen;
+ grub_uint16_t vlantag;
+ grub_uint32_t xid; /* DHCPv4 transaction id */
+ grub_uint32_t srv_id; /* DHCPv4 server_identifier */
+ grub_uint32_t my_ip; /* DHCPv4 offered IP address */
+ unsigned dhcp_tmo_left; /* DHCPv4 running retransmission timeout */
+ unsigned dhcp_tmo; /* DHCPv4 current retransmission timeout */
+ void *data;
+};
+
+struct grub_net_session;
+
+struct grub_net_session_level_protocol
+{
+ void (*close) (struct grub_net_session *session);
+ grub_ssize_t (*recv) (struct grub_net_session *session, void *buf,
+ grub_size_t size);
+ grub_err_t (*send) (struct grub_net_session *session, void *buf,
+ grub_size_t size);
+};
+
+struct grub_net_session
+{
+ struct grub_net_session_level_protocol *protocol;
+ void *data;
+};
+
+static inline void
+grub_net_session_close (struct grub_net_session *session)
+{
+ session->protocol->close (session);
+}
+
+static inline grub_err_t
+grub_net_session_send (struct grub_net_session *session, void *buf,
+ grub_size_t size)
+{
+ return session->protocol->send (session, buf, size);
+}
+
+static inline grub_ssize_t
+grub_net_session_recv (struct grub_net_session *session, void *buf,
+ grub_size_t size)
+{
+ return session->protocol->recv (session, buf, size);
+}
+
+struct grub_net_network_level_interface *
+grub_net_add_addr (const char *name,
+ struct grub_net_card *card,
+ const grub_net_network_level_address_t *addr,
+ const grub_net_link_level_address_t *hwaddress,
+ grub_net_interface_flags_t flags);
+
+extern struct grub_net_network_level_interface *grub_net_network_level_interfaces;
+#define FOR_NET_NETWORK_LEVEL_INTERFACES(var) for (var = grub_net_network_level_interfaces; var; var = var->next)
+#define FOR_NET_NETWORK_LEVEL_INTERFACES_SAFE(var,next) for (var = grub_net_network_level_interfaces, next = (var ? var->next : 0); var; var = next, next = (var ? var->next : 0))
+
+
+extern grub_net_app_level_t grub_net_app_level_list;
+
+#ifndef GRUB_LST_GENERATOR
+static inline void
+grub_net_app_level_register (grub_net_app_level_t proto)
+{
+ grub_list_push (GRUB_AS_LIST_P (&grub_net_app_level_list),
+ GRUB_AS_LIST (proto));
+}
+#endif
+
+static inline void
+grub_net_app_level_unregister (grub_net_app_level_t proto)
+{
+ grub_list_remove (GRUB_AS_LIST (proto));
+}
+
+#define FOR_NET_APP_LEVEL(var) FOR_LIST_ELEMENTS((var), \
+ (grub_net_app_level_list))
+
+extern struct grub_net_card *grub_net_cards;
+
+static inline void
+grub_net_card_register (struct grub_net_card *card)
+{
+ grub_list_push (GRUB_AS_LIST_P (&grub_net_cards),
+ GRUB_AS_LIST (card));
+}
+
+void
+grub_net_card_unregister (struct grub_net_card *card);
+
+#define FOR_NET_CARDS(var) for (var = grub_net_cards; var; var = var->next)
+#define FOR_NET_CARDS_SAFE(var, next) for (var = grub_net_cards, next = (var ? var->next : 0); var; var = next, next = (var ? var->next : 0))
+
+
+extern struct grub_net_route *grub_net_routes;
+
+static inline void
+grub_net_route_register (struct grub_net_route *route)
+{
+ grub_list_push (GRUB_AS_LIST_P (&grub_net_routes),
+ GRUB_AS_LIST (route));
+}
+
+#define FOR_NET_ROUTES(var) for (var = grub_net_routes; var; var = var->next)
+struct grub_net_session *
+grub_net_open_tcp (char *address, grub_uint16_t port);
+
+grub_err_t
+grub_net_resolve_address (const char *name,
+ grub_net_network_level_address_t *addr);
+
+grub_err_t
+grub_net_resolve_net_address (const char *name,
+ grub_net_network_level_netaddress_t *addr);
+
+grub_err_t
+grub_net_route_address (grub_net_network_level_address_t addr,
+ grub_net_network_level_address_t *gateway,
+ struct grub_net_network_level_interface **interf);
+
+
+grub_err_t
+grub_net_add_route (const char *name,
+ grub_net_network_level_netaddress_t target,
+ struct grub_net_network_level_interface *inter);
+
+grub_err_t
+grub_net_add_route_gw (const char *name,
+ grub_net_network_level_netaddress_t target,
+ grub_net_network_level_address_t gw,
+ struct grub_net_network_level_interface *inter);
+
+
+#define GRUB_NET_BOOTP_MAC_ADDR_LEN 16
+
+typedef grub_uint8_t grub_net_bootp_mac_addr_t[GRUB_NET_BOOTP_MAC_ADDR_LEN];
+
+struct grub_net_bootp_packet
+{
+ grub_uint8_t opcode;
+ grub_uint8_t hw_type; /* hardware type. */
+ grub_uint8_t hw_len; /* hardware addr len. */
+ grub_uint8_t gate_hops; /* zero it. */
+ grub_uint32_t ident; /* random number chosen by client. */
+ grub_uint16_t seconds; /* seconds since did initial bootstrap. */
+ grub_uint16_t flags;
+ grub_uint32_t client_ip;
+ grub_uint32_t your_ip;
+ grub_uint32_t server_ip;
+ grub_uint32_t gateway_ip;
+ grub_net_bootp_mac_addr_t mac_addr;
+ char server_name[64];
+ char boot_file[128];
+ grub_uint8_t vendor[0];
+} GRUB_PACKED;
+
+#define GRUB_NET_BOOTP_RFC1048_MAGIC_0 0x63
+#define GRUB_NET_BOOTP_RFC1048_MAGIC_1 0x82
+#define GRUB_NET_BOOTP_RFC1048_MAGIC_2 0x53
+#define GRUB_NET_BOOTP_RFC1048_MAGIC_3 0x63
+
+enum
+ {
+ GRUB_NET_BOOTP_PAD = 0,
+ GRUB_NET_BOOTP_NETMASK = 1,
+ GRUB_NET_BOOTP_ROUTER = 3,
+ GRUB_NET_BOOTP_DNS = 6,
+ GRUB_NET_BOOTP_HOSTNAME = 12,
+ GRUB_NET_BOOTP_DOMAIN = 15,
+ GRUB_NET_BOOTP_ROOT_PATH = 17,
+ GRUB_NET_BOOTP_EXTENSIONS_PATH = 18,
+ GRUB_NET_DHCP_REQUESTED_IP_ADDRESS = 50,
+ GRUB_NET_DHCP_OVERLOAD = 52,
+ GRUB_NET_DHCP_MESSAGE_TYPE = 53,
+ GRUB_NET_DHCP_SERVER_IDENTIFIER = 54,
+ GRUB_NET_DHCP_PARAMETER_REQUEST_LIST = 55,
+ GRUB_NET_BOOTP_CLIENT_ID = 61,
+ GRUB_NET_DHCP_TFTP_SERVER_NAME = 66,
+ GRUB_NET_DHCP_BOOTFILE_NAME = 67,
+ GRUB_NET_BOOTP_CLIENT_UUID = 97,
+ GRUB_NET_BOOTP_END = 255
+ };
+
+struct grub_net_network_level_interface *
+grub_net_configure_by_dhcp_ack (const char *name,
+ struct grub_net_card *card,
+ grub_net_interface_flags_t flags,
+ const struct grub_net_bootp_packet *bp,
+ grub_size_t size,
+ int is_def, char **device, char **path);
+
+grub_err_t
+grub_net_add_ipv4_local (struct grub_net_network_level_interface *inf,
+ int mask);
+
+void
+grub_net_process_dhcp (struct grub_net_buff *nb,
+ struct grub_net_network_level_interface *iface);
+
+int
+grub_net_hwaddr_cmp (const grub_net_link_level_address_t *a,
+ const grub_net_link_level_address_t *b);
+int
+grub_net_addr_cmp (const grub_net_network_level_address_t *a,
+ const grub_net_network_level_address_t *b);
+
+
+/*
+ Currently supported adresses:
+ IPv4: XXX.XXX.XXX.XXX
+ IPv6: XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX
+ */
+#define GRUB_NET_MAX_STR_ADDR_LEN sizeof ("XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX")
+
+/*
+ Currently suppoerted adresses:
+ ethernet: XX:XX:XX:XX:XX:XX
+ */
+
+#define GRUB_NET_MAX_STR_HWADDR_LEN (sizeof ("XX:XX:XX:XX:XX:XX"))
+
+void
+grub_net_addr_to_str (const grub_net_network_level_address_t *target,
+ char *buf);
+void
+grub_net_hwaddr_to_str (const grub_net_link_level_address_t *addr, char *str);
+
+grub_err_t
+grub_env_set_net_property (const char *intername, const char *suffix,
+ const char *value, grub_size_t len);
+
+void
+grub_net_poll_cards (unsigned time, int *stop_condition);
+
+void grub_bootp_init (void);
+void grub_bootp_fini (void);
+
+void grub_dns_init (void);
+void grub_dns_fini (void);
+
+static inline void
+grub_net_network_level_interface_unregister (struct grub_net_network_level_interface *inter)
+{
+ inter->card->num_ifaces--;
+ *inter->prev = inter->next;
+ if (inter->next)
+ inter->next->prev = inter->prev;
+ inter->next = 0;
+ inter->prev = 0;
+}
+
+void
+grub_net_tcp_retransmit (void);
+
+void
+grub_net_link_layer_add_address (struct grub_net_card *card,
+ const grub_net_network_level_address_t *nl,
+ const grub_net_link_level_address_t *ll,
+ int override);
+int
+grub_net_link_layer_resolve_check (struct grub_net_network_level_interface *inf,
+ const grub_net_network_level_address_t *proto_addr);
+grub_err_t
+grub_net_link_layer_resolve (struct grub_net_network_level_interface *inf,
+ const grub_net_network_level_address_t *proto_addr,
+ grub_net_link_level_address_t *hw_addr);
+grub_err_t
+grub_net_dns_lookup (const char *name,
+ const struct grub_net_network_level_address *servers,
+ grub_size_t n_servers,
+ grub_size_t *naddresses,
+ struct grub_net_network_level_address **addresses,
+ int cache);
+grub_err_t
+grub_net_add_dns_server (const struct grub_net_network_level_address *s);
+void
+grub_net_remove_dns_server (const struct grub_net_network_level_address *s);
+
+grub_err_t
+grub_net_search_config_file (char *config);
+
+extern char *grub_net_default_server;
+
+#define GRUB_NET_TRIES 40
+#define GRUB_NET_INTERVAL 400
+#define GRUB_NET_INTERVAL_ADDITION 20
+
+#define VLANTAG_IDENTIFIER 0x8100
+
+#endif /* ! GRUB_NET_HEADER */
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-30 18:19:56 +0000