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Diffstat (limited to 'dhcpcd/dhcp6.h')
| -rw-r--r-- | dhcpcd/dhcp6.h | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/dhcpcd/dhcp6.h b/dhcpcd/dhcp6.h new file mode 100644 index 00000000..4c53d427 --- /dev/null +++ b/dhcpcd/dhcp6.h @@ -0,0 +1,245 @@ +/* + * dhcpcd - DHCP client daemon + * Copyright (c) 2006-2014 Roy Marples <roy@marples.name> + * 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 |