diff options
Diffstat (limited to '')
| -rw-r--r-- | include/grub/net.h | 583 | ||||
| -rw-r--r-- | include/grub/net/arp.h | 32 | ||||
| -rw-r--r-- | include/grub/net/ethernet.h | 41 | ||||
| -rw-r--r-- | include/grub/net/ip.h | 98 | ||||
| -rw-r--r-- | include/grub/net/netbuff.h | 31 | ||||
| -rw-r--r-- | include/grub/net/tcp.h | 85 | ||||
| -rw-r--r-- | include/grub/net/udp.h | 51 |
7 files changed, 921 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 */ diff --git a/include/grub/net/arp.h b/include/grub/net/arp.h new file mode 100644 index 0000000..8d9d081 --- /dev/null +++ b/include/grub/net/arp.h @@ -0,0 +1,32 @@ +/* + * 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_ARP_HEADER +#define GRUB_NET_ARP_HEADER 1 +#include <grub/misc.h> +#include <grub/net.h> + +extern grub_err_t grub_net_arp_receive (struct grub_net_buff *nb, + struct grub_net_card *card, + grub_uint16_t *vlantag); + +grub_err_t +grub_net_arp_send_request (struct grub_net_network_level_interface *inf, + const grub_net_network_level_address_t *proto_addr); + +#endif diff --git a/include/grub/net/ethernet.h b/include/grub/net/ethernet.h new file mode 100644 index 0000000..23a935e --- /dev/null +++ b/include/grub/net/ethernet.h @@ -0,0 +1,41 @@ +/* + * 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_ETHERNET_HEADER +#define GRUB_NET_ETHERNET_HEADER 1 +#include <grub/types.h> +#include <grub/net.h> + +/* IANA Ethertype */ +typedef enum + { + GRUB_NET_ETHERTYPE_IP = 0x0800, + GRUB_NET_ETHERTYPE_ARP = 0x0806, + GRUB_NET_ETHERTYPE_IP6 = 0x86DD, + } grub_net_ethertype_t; + +grub_err_t +send_ethernet_packet (struct grub_net_network_level_interface *inf, + struct grub_net_buff *nb, + grub_net_link_level_address_t target_addr, + grub_net_ethertype_t ethertype); +grub_err_t +grub_net_recv_ethernet_packet (struct grub_net_buff *nb, + struct grub_net_card *card); + +#endif diff --git a/include/grub/net/ip.h b/include/grub/net/ip.h new file mode 100644 index 0000000..ab9d68f --- /dev/null +++ b/include/grub/net/ip.h @@ -0,0 +1,98 @@ +/* + * 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_IP_HEADER +#define GRUB_NET_IP_HEADER 1 +#include <grub/misc.h> +#include <grub/net.h> + +typedef enum grub_net_ip_protocol + { + GRUB_NET_IP_ICMP = 1, + GRUB_NET_IP_TCP = 6, + GRUB_NET_IP_UDP = 17, + GRUB_NET_IP_ICMPV6 = 58 + } grub_net_ip_protocol_t; +#define GRUB_NET_IP_BROADCAST 0xFFFFFFFF + +static inline grub_uint64_t +grub_net_ipv6_get_id (const grub_net_link_level_address_t *addr) +{ + return grub_cpu_to_be64 (((grub_uint64_t) (addr->mac[0] ^ 2) << 56) + | ((grub_uint64_t) addr->mac[1] << 48) + | ((grub_uint64_t) addr->mac[2] << 40) + | 0xfffe000000ULL + | ((grub_uint64_t) addr->mac[3] << 16) + | ((grub_uint64_t) addr->mac[4] << 8) + | ((grub_uint64_t) addr->mac[5])); +} + +grub_uint16_t grub_net_ip_chksum(void *ipv, grub_size_t len); + +grub_err_t +grub_net_recv_ip_packets (struct grub_net_buff *nb, + struct grub_net_card *card, + const grub_net_link_level_address_t *hwaddress, + const grub_net_link_level_address_t *src_hwaddress, + grub_uint16_t *vlantag); + +grub_err_t +grub_net_send_ip_packet (struct grub_net_network_level_interface *inf, + const grub_net_network_level_address_t *target, + const grub_net_link_level_address_t *ll_target_addr, + struct grub_net_buff *nb, + grub_net_ip_protocol_t proto); + +grub_err_t +grub_net_recv_icmp_packet (struct grub_net_buff *nb, + struct grub_net_network_level_interface *inf, + const grub_net_link_level_address_t *ll_src, + const grub_net_network_level_address_t *src); +grub_err_t +grub_net_recv_icmp6_packet (struct grub_net_buff *nb, + struct grub_net_card *card, + struct grub_net_network_level_interface *inf, + const grub_net_link_level_address_t *ll_src, + const grub_net_network_level_address_t *source, + const grub_net_network_level_address_t *dest, + grub_uint8_t ttl); +grub_err_t +grub_net_recv_udp_packet (struct grub_net_buff *nb, + struct grub_net_network_level_interface *inf, + const grub_net_network_level_address_t *src); +grub_err_t +grub_net_recv_tcp_packet (struct grub_net_buff *nb, + struct grub_net_network_level_interface *inf, + const grub_net_network_level_address_t *source); + +grub_uint16_t +grub_net_ip_transport_checksum (struct grub_net_buff *nb, + grub_uint16_t proto, + const grub_net_network_level_address_t *src, + const grub_net_network_level_address_t *dst); + +struct grub_net_network_level_interface * +grub_net_ipv6_get_link_local (struct grub_net_card *card, + const grub_net_link_level_address_t *hwaddr); +grub_err_t +grub_net_icmp6_send_request (struct grub_net_network_level_interface *inf, + const grub_net_network_level_address_t *proto_addr); + +grub_err_t +grub_net_icmp6_send_router_solicit (struct grub_net_network_level_interface *inf); +#endif diff --git a/include/grub/net/netbuff.h b/include/grub/net/netbuff.h new file mode 100644 index 0000000..1177c12 --- /dev/null +++ b/include/grub/net/netbuff.h @@ -0,0 +1,31 @@ +#ifndef GRUB_NETBUFF_HEADER +#define GRUB_NETBUFF_HEADER + +#include <grub/misc.h> + +#define NETBUFF_ALIGN 2048 +#define NETBUFFMINLEN 64 + +struct grub_net_buff +{ + /* Pointer to the start of the buffer. */ + grub_uint8_t *head; + /* Pointer to the data. */ + grub_uint8_t *data; + /* Pointer to the tail. */ + grub_uint8_t *tail; + /* Pointer to the end of the buffer. */ + grub_uint8_t *end; +}; + +grub_err_t grub_netbuff_put (struct grub_net_buff *net_buff, grub_size_t len); +grub_err_t grub_netbuff_unput (struct grub_net_buff *net_buff, grub_size_t len); +grub_err_t grub_netbuff_push (struct grub_net_buff *net_buff, grub_size_t len); +grub_err_t grub_netbuff_pull (struct grub_net_buff *net_buff, grub_size_t len); +grub_err_t grub_netbuff_reserve (struct grub_net_buff *net_buff, grub_size_t len); +grub_err_t grub_netbuff_clear (struct grub_net_buff *net_buff); +struct grub_net_buff * grub_netbuff_alloc (grub_size_t len); +struct grub_net_buff * grub_netbuff_make_pkt (grub_size_t len); +void grub_netbuff_free (struct grub_net_buff *net_buff); + +#endif diff --git a/include/grub/net/tcp.h b/include/grub/net/tcp.h new file mode 100644 index 0000000..5a9305a --- /dev/null +++ b/include/grub/net/tcp.h @@ -0,0 +1,85 @@ +/* + * 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_TCP_HEADER +#define GRUB_NET_TCP_HEADER 1 +#include <grub/types.h> +#include <grub/net.h> + +struct grub_net_tcp_socket; +typedef struct grub_net_tcp_socket *grub_net_tcp_socket_t; + +struct grub_net_tcp_listen; +typedef struct grub_net_tcp_listen *grub_net_tcp_listen_t; + +grub_net_tcp_socket_t +grub_net_tcp_open (char *server, + grub_uint16_t out_port, + grub_err_t (*recv_hook) (grub_net_tcp_socket_t sock, + struct grub_net_buff *nb, + void *data), + void (*error_hook) (grub_net_tcp_socket_t sock, + void *data), + void (*fin_hook) (grub_net_tcp_socket_t sock, + void *data), + void *hook_data); + +grub_net_tcp_listen_t +grub_net_tcp_listen (grub_uint16_t port, + const struct grub_net_network_level_interface *inf, + grub_err_t (*listen_hook) (grub_net_tcp_listen_t listen, + grub_net_tcp_socket_t sock, + void *data), + void *hook_data); + +void +grub_net_tcp_stop_listen (grub_net_tcp_listen_t listen); + +grub_err_t +grub_net_send_tcp_packet (const grub_net_tcp_socket_t socket, + struct grub_net_buff *nb, + int push); + +enum + { + GRUB_NET_TCP_CONTINUE_RECEIVING, + GRUB_NET_TCP_DISCARD, + GRUB_NET_TCP_ABORT + }; + +void +grub_net_tcp_close (grub_net_tcp_socket_t sock, int discard_received); + +grub_err_t +grub_net_tcp_accept (grub_net_tcp_socket_t sock, + grub_err_t (*recv_hook) (grub_net_tcp_socket_t sock, + struct grub_net_buff *nb, + void *data), + void (*error_hook) (grub_net_tcp_socket_t sock, + void *data), + void (*fin_hook) (grub_net_tcp_socket_t sock, + void *data), + void *hook_data); + +void +grub_net_tcp_stall (grub_net_tcp_socket_t sock); + +void +grub_net_tcp_unstall (grub_net_tcp_socket_t sock); + +#endif diff --git a/include/grub/net/udp.h b/include/grub/net/udp.h new file mode 100644 index 0000000..17f38cf --- /dev/null +++ b/include/grub/net/udp.h @@ -0,0 +1,51 @@ +/* + * 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_UDP_HEADER +#define GRUB_NET_UDP_HEADER 1 +#include <grub/types.h> +#include <grub/net.h> + +struct udphdr +{ + grub_uint16_t src; + grub_uint16_t dst; + grub_uint16_t len; + grub_uint16_t chksum; +} GRUB_PACKED; + +struct grub_net_udp_socket; +typedef struct grub_net_udp_socket *grub_net_udp_socket_t; + +grub_net_udp_socket_t +grub_net_udp_open (grub_net_network_level_address_t addr, + grub_uint16_t out_port, + grub_err_t (*recv_hook) (grub_net_udp_socket_t sock, + struct grub_net_buff *nb, + void *data), + void *recv_hook_data); + +void +grub_net_udp_close (grub_net_udp_socket_t sock); + +grub_err_t +grub_net_send_udp_packet (const grub_net_udp_socket_t socket, + struct grub_net_buff *nb); + + +#endif |