[3621] | 1 | /* vi: set sw=4 ts=4: */
|
---|
| 2 | /*
|
---|
| 3 | * Copyright (C) 2011 Denys Vlasenko.
|
---|
| 4 | *
|
---|
| 5 | * Licensed under GPLv2, see file LICENSE in this source tree.
|
---|
| 6 | */
|
---|
| 7 | #ifndef UDHCP_D6_COMMON_H
|
---|
| 8 | #define UDHCP_D6_COMMON_H 1
|
---|
| 9 |
|
---|
| 10 | #include <netinet/ip6.h>
|
---|
| 11 |
|
---|
| 12 | PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
|
---|
| 13 |
|
---|
| 14 |
|
---|
| 15 | /*** DHCPv6 packet ***/
|
---|
| 16 |
|
---|
| 17 | /* DHCPv6 protocol. See RFC 3315 */
|
---|
| 18 | #define D6_MSG_SOLICIT 1
|
---|
| 19 | #define D6_MSG_ADVERTISE 2
|
---|
| 20 | #define D6_MSG_REQUEST 3
|
---|
| 21 | #define D6_MSG_CONFIRM 4
|
---|
| 22 | #define D6_MSG_RENEW 5
|
---|
| 23 | #define D6_MSG_REBIND 6
|
---|
| 24 | #define D6_MSG_REPLY 7
|
---|
| 25 | #define D6_MSG_RELEASE 8
|
---|
| 26 | #define D6_MSG_DECLINE 9
|
---|
| 27 | #define D6_MSG_RECONFIGURE 10
|
---|
| 28 | #define D6_MSG_INFORMATION_REQUEST 11
|
---|
| 29 | #define D6_MSG_RELAY_FORW 12
|
---|
| 30 | #define D6_MSG_RELAY_REPL 13
|
---|
| 31 |
|
---|
| 32 | struct d6_packet {
|
---|
| 33 | union {
|
---|
| 34 | uint8_t d6_msg_type;
|
---|
| 35 | uint32_t d6_xid32;
|
---|
| 36 | } d6_u;
|
---|
| 37 | uint8_t d6_options[576 - sizeof(struct iphdr) - sizeof(struct udphdr) - 4
|
---|
| 38 | + CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS];
|
---|
| 39 | } PACKED;
|
---|
| 40 | #define d6_msg_type d6_u.d6_msg_type
|
---|
| 41 | #define d6_xid32 d6_u.d6_xid32
|
---|
| 42 |
|
---|
| 43 | struct ip6_udp_d6_packet {
|
---|
| 44 | struct ip6_hdr ip6;
|
---|
| 45 | struct udphdr udp;
|
---|
| 46 | struct d6_packet data;
|
---|
| 47 | } PACKED;
|
---|
| 48 |
|
---|
| 49 | struct udp_d6_packet {
|
---|
| 50 | struct udphdr udp;
|
---|
| 51 | struct d6_packet data;
|
---|
| 52 | } PACKED;
|
---|
| 53 |
|
---|
| 54 | /*** Options ***/
|
---|
| 55 |
|
---|
| 56 | struct d6_option {
|
---|
| 57 | uint8_t code_hi;
|
---|
| 58 | uint8_t code;
|
---|
| 59 | uint8_t len_hi;
|
---|
| 60 | uint8_t len;
|
---|
| 61 | uint8_t data[1];
|
---|
| 62 | } PACKED;
|
---|
| 63 |
|
---|
| 64 | #define D6_OPT_CLIENTID 1
|
---|
| 65 | #define D6_OPT_SERVERID 2
|
---|
| 66 | #define D6_OPT_IA_NA 3
|
---|
| 67 | #define D6_OPT_IA_TA 4
|
---|
| 68 | #define D6_OPT_IAADDR 5
|
---|
| 69 | #define D6_OPT_ORO 6
|
---|
| 70 | #define D6_OPT_PREFERENCE 7
|
---|
| 71 | #define D6_OPT_ELAPSED_TIME 8
|
---|
| 72 | #define D6_OPT_RELAY_MSG 9
|
---|
| 73 | #define D6_OPT_AUTH 11
|
---|
| 74 | #define D6_OPT_UNICAST 12
|
---|
| 75 | #define D6_OPT_STATUS_CODE 13
|
---|
| 76 | #define D6_OPT_RAPID_COMMIT 14
|
---|
| 77 | #define D6_OPT_USER_CLASS 15
|
---|
| 78 | #define D6_OPT_VENDOR_CLASS 16
|
---|
| 79 | #define D6_OPT_VENDOR_OPTS 17
|
---|
| 80 | #define D6_OPT_INTERFACE_ID 18
|
---|
| 81 | #define D6_OPT_RECONF_MSG 19
|
---|
| 82 | #define D6_OPT_RECONF_ACCEPT 20
|
---|
| 83 |
|
---|
| 84 | #define D6_OPT_IA_PD 25
|
---|
| 85 | #define D6_OPT_IAPREFIX 26
|
---|
| 86 |
|
---|
| 87 | /*** Other shared functions ***/
|
---|
| 88 |
|
---|
| 89 | struct client6_data_t {
|
---|
| 90 | struct d6_option *server_id;
|
---|
| 91 | struct d6_option *ia_na;
|
---|
| 92 | char **env_ptr;
|
---|
| 93 | unsigned env_idx;
|
---|
| 94 | };
|
---|
| 95 |
|
---|
| 96 | #define client6_data (*(struct client6_data_t*)(&bb_common_bufsiz1[COMMON_BUFSIZE - sizeof(struct client6_data_t)]))
|
---|
| 97 |
|
---|
| 98 | int FAST_FUNC d6_listen_socket(int port, const char *inf);
|
---|
| 99 |
|
---|
| 100 | int FAST_FUNC d6_recv_kernel_packet(
|
---|
| 101 | struct in6_addr *peer_ipv6,
|
---|
| 102 | struct d6_packet *packet, int fd
|
---|
| 103 | );
|
---|
| 104 |
|
---|
| 105 | int FAST_FUNC d6_send_raw_packet(
|
---|
| 106 | struct d6_packet *d6_pkt, unsigned d6_pkt_size,
|
---|
| 107 | struct in6_addr *src_ipv6, int source_port,
|
---|
| 108 | struct in6_addr *dst_ipv6, int dest_port, const uint8_t *dest_arp,
|
---|
| 109 | int ifindex
|
---|
| 110 | );
|
---|
| 111 |
|
---|
| 112 | int FAST_FUNC d6_send_kernel_packet(
|
---|
| 113 | struct d6_packet *d6_pkt, unsigned d6_pkt_size,
|
---|
| 114 | struct in6_addr *src_ipv6, int source_port,
|
---|
| 115 | struct in6_addr *dst_ipv6, int dest_port
|
---|
| 116 | );
|
---|
| 117 |
|
---|
| 118 | #if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 2
|
---|
| 119 | void FAST_FUNC d6_dump_packet(struct d6_packet *packet);
|
---|
| 120 | #else
|
---|
| 121 | # define d6_dump_packet(packet) ((void)0)
|
---|
| 122 | #endif
|
---|
| 123 |
|
---|
| 124 |
|
---|
| 125 | POP_SAVED_FUNCTION_VISIBILITY
|
---|
| 126 |
|
---|
| 127 | #endif
|
---|