/* * dhcpcd - DHCP client daemon * Copyright (c) 2006-2014 Roy Marples * All rights reserved * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef DHCP6_H #define DHCP6_H #include "dhcpcd.h" #define IN6ADDR_LINKLOCAL_ALLDHCP_INIT \ {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02 }}} /* UDP port numbers for DHCP */ #define DHCP6_CLIENT_PORT 546 #define DHCP6_SERVER_PORT 547 /* DHCP message type */ #define DHCP6_SOLICIT 1 #define DHCP6_ADVERTISE 2 #define DHCP6_REQUEST 3 #define DHCP6_CONFIRM 4 #define DHCP6_RENEW 5 #define DHCP6_REBIND 6 #define DHCP6_REPLY 7 #define DHCP6_RELEASE 8 #define DHCP6_DECLINE 9 #define DHCP6_RECONFIGURE 10 #define DHCP6_INFORMATION_REQ 11 #define DHCP6_RELAY_FLOW 12 #define DHCP6_RELAY_REPL 13 #define D6_OPTION_CLIENTID 1 #define D6_OPTION_SERVERID 2 #define D6_OPTION_IA_NA 3 #define D6_OPTION_IA_TA 4 #define D6_OPTION_ORO 6 #define D6_OPTION_IA_ADDR 5 #define D6_OPTION_PREFERENCE 7 #define D6_OPTION_ELAPSED 8 #define D6_OPTION_AUTH 11 #define D6_OPTION_UNICAST 12 #define D6_OPTION_STATUS_CODE 13 #define D6_OPTION_RAPID_COMMIT 14 #define D6_OPTION_VENDOR_CLASS 16 #define D6_OPTION_VENDOR_OPTS 17 #define D6_OPTION_SIP_SERVERS_NAME 21 #define D6_OPTION_SIP_SERVERS_ADDRESS 22 #define D6_OPTION_DNS_SERVERS 23 #define D6_OPTION_DOMAIN_LIST 24 #define D6_OPTION_IA_PD 25 #define D6_OPTION_IAPREFIX 26 #define D6_OPTION_NIS_SERVERS 27 #define D6_OPTION_NISP_SERVERS 28 #define D6_OPTION_NIS_DOMAIN_NAME 29 #define D6_OPTION_NISP_DOMAIN_NAME 30 #define D6_OPTION_SNTP_SERVERS 31 #define D6_OPTION_INFO_REFRESH_TIME 32 #define D6_OPTION_BCMS_SERVER_D 33 #define D6_OPTION_BCMS_SERVER_A 34 #define D6_OPTION_FQDN 39 #define D6_OPTION_POSIX_TIMEZONE 41 #define D6_OPTION_TZDB_TIMEZONE 42 #define D6_FQDN_PTR 0x00 #define D6_FQDN_BOTH 0x01 #define D6_FQDN_NONE 0x04 #include "dhcp.h" #include "ipv6.h" struct dhcp6_message { uint8_t type; uint8_t xid[3]; /* followed by options */ } __packed; struct dhcp6_option { uint16_t code; uint16_t len; /* followed by data */ } __packed; #define D6_STATUS_OK 0 #define D6_STATUS_FAIL 1 #define D6_STATUS_NOADDR 2 #define D6_STATUS_NOBINDING 3 #define D6_STATUS_NOTONLINK 4 #define D6_STATUS_USEMULTICAST 5 #define SOL_MAX_DELAY 1 #define SOL_TIMEOUT 1 #define SOL_MAX_RT 120 #define REQ_TIMEOUT 1 #define REQ_MAX_RT 30 #define REQ_MAX_RC 10 #define CNF_MAX_DELAY 1 #define CNF_TIMEOUT 1 #define CNF_MAX_RT 4 #define CNF_MAX_RD 10 #define REN_TIMEOUT 10 #define REN_MAX_RT 600 #define REB_TIMEOUT 10 #define REB_MAX_RT 600 #define INF_MAX_DELAY 1 #define INF_TIMEOUT 1 #define INF_MAX_RT 120 #define REL_TIMEOUT 1 #define REL_MAX_RC 5 #define DEC_TIMEOUT 1 #define DEC_MAX_RC 5 #define REC_TIMEOUT 2 #define REC_MAX_RC 8 #define HOP_COUNT_LIMIT 32 /* RFC4242 3.1 */ #define IRT_DEFAULT 86400 #define IRT_MINIMUM 600 #define DHCP6_RAND_MIN -100 #define DHCP6_RAND_MAX 100 enum DH6S { DH6S_INIT, DH6S_DISCOVER, DH6S_REQUEST, DH6S_BOUND, DH6S_RENEW, DH6S_REBIND, DH6S_CONFIRM, DH6S_INFORM, DH6S_INFORMED, DH6S_RENEW_REQUESTED, DH6S_PROBE, DH6S_DELEGATED, DH6S_RELEASE }; struct dhcp6_state { enum DH6S state; time_t start_uptime; /* Message retransmission timings */ struct timeval RT; int IMD; int RTC; int IRT; int MRC; int MRT; void (*MRCcallback)(void *); struct dhcp6_message *send; size_t send_len; struct dhcp6_message *recv; size_t recv_len; struct dhcp6_message *new; size_t new_len; struct dhcp6_message *old; size_t old_len; uint32_t renew; uint32_t rebind; uint32_t expire; struct in6_addr unicast; struct ipv6_addrhead addrs; uint32_t lowpl; uint32_t sla; uint8_t sla_set; char leasefile[PATH_MAX]; const char *reason; struct authstate auth; }; #define D6_STATE(ifp) \ ((struct dhcp6_state *)(ifp)->if_data[IF_DATA_DHCP6]) #define D6_CSTATE(ifp) \ ((const struct dhcp6_state *)(ifp)->if_data[IF_DATA_DHCP6]) #define D6_STATE_RUNNING(ifp) (D6_STATE((ifp)) && D6_STATE((ifp))->new) #define D6_FIRST_OPTION(m) \ ((struct dhcp6_option *) \ ((uint8_t *)(m) + sizeof(struct dhcp6_message))) #define D6_NEXT_OPTION(o) \ ((struct dhcp6_option *) \ (((uint8_t *)o) + sizeof(struct dhcp6_option) + ntohs((o)->len))) #define D6_OPTION_DATA(o) \ ((uint8_t *)(o) + sizeof(struct dhcp6_option)) #define D6_CFIRST_OPTION(m) \ ((const struct dhcp6_option *) \ ((const uint8_t *)(m) + sizeof(struct dhcp6_message))) #define D6_CNEXT_OPTION(o) \ ((const struct dhcp6_option *) \ (((const uint8_t *)o) + sizeof(struct dhcp6_option) + ntohs((o)->len))) #define D6_COPTION_DATA(o) \ ((const uint8_t *)(o) + sizeof(struct dhcp6_option)) #ifdef INET6 extern struct dhcp_opt *dhcp6_opts; extern size_t dhcp6_opts_len; void dhcp6_printoptions(void); int dhcp6_addrexists(const struct ipv6_addr *); int dhcp6_find_delegates(struct interface *); int dhcp6_start(struct interface *, enum DH6S); void dhcp6_reboot(struct interface *); ssize_t dhcp6_env(char **, const char *, const struct interface *, const struct dhcp6_message *, ssize_t); void dhcp6_free(struct interface *); void dhcp6_handleifa(int, const char *, const struct in6_addr *addr, int); void dhcp6_drop(struct interface *, const char *); #else #define dhcp6_printoptions() #define dhcp6_addrexists(a) 0 #define dhcp6_find_delegates(a) 0 #define dhcp6_start(a, b) 0 #define dhcp6_reboot(a) #define dhcp6_env(a, b, c, d, e) #define dhcp6_free(a) #define dhcp6_drop(a, b) #endif #endif