X-Git-Url: https://git.decadent.org.uk/gitweb/?p=odhcp6c.git;a=blobdiff_plain;f=src%2Fodhcp6c.h;h=8abb6311f945ed61b65d39b5b98bfef3eb7464a7;hp=e0f6f62ce386515b73df1fea85f8e7582d7e677d;hb=76c4797e82ec820d488e41ffe37adc107b5d0218;hpb=9c409ef5ce654ed5dd3ce706317eaac718a22983 diff --git a/src/odhcp6c.h b/src/odhcp6c.h index e0f6f62..8abb631 100644 --- a/src/odhcp6c.h +++ b/src/odhcp6c.h @@ -1,5 +1,5 @@ /** - * Copyright (C) 2012-2013 Steven Barth + * Copyright (C) 2012-2014 Steven Barth * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License v2 as published by @@ -21,13 +21,18 @@ #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) -#ifndef SOL_NETLINK -#define SOL_NETLINK 270 -#endif - #define ND_OPT_RECURSIVE_DNS 25 #define ND_OPT_DNSSL 31 +#define DHCPV6_SOL_MAX_RT 3600 +#define DHCPV6_REQ_MAX_RT 30 +#define DHCPV6_CNF_MAX_RT 4 +#define DHCPV6_REN_MAX_RT 600 +#define DHCPV6_REB_MAX_RT 600 +#define DHCPV6_INF_MAX_RT 3600 + +#define DEFAULT_MIN_UPDATE_INTERVAL 30 + enum dhcvp6_opt { DHCPV6_OPT_CLIENTID = 1, DHCPV6_OPT_SERVERID = 2, @@ -40,12 +45,15 @@ enum dhcvp6_opt { DHCPV6_OPT_AUTH = 11, DHCPV6_OPT_STATUS = 13, DHCPV6_OPT_RAPID_COMMIT = 14, + DHCPV6_OPT_USER_CLASS = 15, + DHCPV6_OPT_VENDOR_CLASS = 16, DHCPV6_OPT_RECONF_MESSAGE = 19, DHCPV6_OPT_RECONF_ACCEPT = 20, DHCPV6_OPT_DNS_SERVERS = 23, DHCPV6_OPT_DNS_DOMAIN = 24, DHCPV6_OPT_IA_PD = 25, DHCPV6_OPT_IA_PREFIX = 26, + DHCPV6_OPT_SNTP_SERVERS = 31, DHCPV6_OPT_INFO_REFRESH = 32, DHCPV6_OPT_FQDN = 39, DHCPV6_OPT_NTP_SERVER = 56, @@ -53,8 +61,27 @@ enum dhcvp6_opt { DHCPV6_OPT_SIP_SERVER_A = 22, DHCPV6_OPT_AFTR_NAME = 64, DHCPV6_OPT_PD_EXCLUDE = 67, - /* draft-bhandari-dhc-class-based-prefix */ - DHCPV6_OPT_PREFIX_CLASS = 200, /* NOT STANDARDIZED! */ + DHCPV6_OPT_SOL_MAX_RT = 82, + DHCPV6_OPT_INF_MAX_RT = 83, +#ifdef EXT_PREFIX_CLASS + /* draft-bhandari-dhc-class-based-prefix, not yet standardized */ + DHCPV6_OPT_PREFIX_CLASS = EXT_PREFIX_CLASS, +#endif +#ifdef EXT_CER_ID + /* draft-donley-dhc-cer-id-option-03 */ + DHCPV6_OPT_CER_ID = EXT_CER_ID, +#endif +#ifdef EXT_S46 + /* draft-ietf-softwire-map-dhcp-07 */ + DHCPV6_OPT_S46_RULE = EXT_S46, + DHCPV6_OPT_S46_BR = EXT_S46 + 1, + DHCPV6_OPT_S46_DMR = EXT_S46 + 2, + DHCPV6_OPT_S46_V4V6BIND = EXT_S46 + 3, + DHCPV6_OPT_S46_PORTPARAMS = EXT_S46 + 4, + DHCPV6_OPT_S46_CONT_MAPE = EXT_S46 + 5, + DHCPV6_OPT_S46_CONT_MAPT = EXT_S46 + 6, + DHCPV6_OPT_S46_CONT_LW = EXT_S46 + 7, +#endif }; enum dhcpv6_opt_npt { @@ -79,11 +106,23 @@ enum dhcpv6_msg { }; enum dhcpv6_status { + DHCPV6_Success = 0, + DHCPV6_UnspecFail = 1, DHCPV6_NoAddrsAvail = 2, + DHCPV6_NoBinding = 3, + DHCPV6_NotOnLink = 4, + DHCPV6_UseMulticast = 5, DHCPV6_NoPrefixAvail = 6, + _DHCPV6_Status_Max }; -typedef int(reply_handler)(enum dhcpv6_msg orig, +enum dhcpv6_config { + DHCPV6_STRICT_OPTIONS = 1, + DHCPV6_CLIENT_FQDN = 2, + DHCPV6_ACCEPT_RECONFIGURE = 4, +}; + +typedef int(reply_handler)(enum dhcpv6_msg orig, const int rc, const void *opt, const void *end); // retransmission strategy @@ -91,12 +130,12 @@ struct dhcpv6_retx { bool delay; uint8_t init_timeo; uint16_t max_timeo; + uint8_t max_rc; char name[8]; reply_handler *handler_reply; int(*handler_finish)(void); }; - // DHCPv6 Protocol Headers struct dhcpv6_header { uint8_t msg_type; @@ -146,6 +185,40 @@ struct dhcpv6_auth_reconfigure { uint8_t key[16]; } _packed; +struct dhcpv6_cer_id { + uint16_t type; + uint16_t len; + uint16_t reserved; + uint16_t auth_type; + uint8_t auth[16]; + struct in6_addr addr; +} _packed; + +struct dhcpv6_s46_portparams { + uint8_t offset; + uint8_t psid_len; + uint16_t psid; +} _packed; + +struct dhcpv6_s46_v4v6bind { + struct in_addr ipv4_address; + uint8_t bindprefix6_len; + uint8_t bind_ipv6_prefix[]; +} _packed; + +struct dhcpv6_s46_dmr { + uint8_t dmr_prefix6_len; + uint8_t dmr_ipv6_prefix[]; +} _packed; + +struct dhcpv6_s46_rule { + uint8_t flags; + uint8_t ea_len; + uint8_t prefix4_len; + struct in_addr ipv4_prefix; + uint8_t prefix6_len; + uint8_t ipv6_prefix[]; +} _packed; #define dhcpv6_for_each_option(start, end, otype, olen, odata)\ for (uint8_t *_o = (uint8_t*)(start); _o + 4 <= (uint8_t*)(end) &&\ @@ -160,6 +233,8 @@ struct dhcpv6_server_cand { int16_t preference; uint8_t duid_len; uint8_t duid[130]; + uint32_t sol_max_rt; + uint32_t inf_max_rt; void *ia_na; void *ia_pd; size_t ia_na_len; @@ -176,15 +251,23 @@ enum odhcp6c_state { STATE_SEARCH, STATE_IA_NA, STATE_IA_PD, + STATE_IA_PD_INIT, STATE_CUSTOM_OPTS, STATE_SNTP_IP, - STATE_SNTP_FQDN, + STATE_NTP_IP, + STATE_NTP_FQDN, STATE_SIP_IP, STATE_SIP_FQDN, STATE_RA_ROUTE, STATE_RA_PREFIX, STATE_RA_DNS, STATE_AFTR_NAME, + STATE_VENDORCLASS, + STATE_USERCLASS, + STATE_CER, + STATE_S46_MAPT, + STATE_S46_MAPE, + STATE_S46_LW, _STATE_MAX }; @@ -197,12 +280,11 @@ struct icmp6_opt { enum dhcpv6_mode { - DHCPV6_UNKNOWN, + DHCPV6_UNKNOWN = -1, DHCPV6_STATELESS, DHCPV6_STATEFUL }; - enum odhcp6c_ia_mode { IA_MODE_NONE, IA_MODE_TRY, @@ -217,14 +299,22 @@ struct odhcp6c_entry { struct in6_addr target; uint32_t valid; uint32_t preferred; - uint32_t prefix_class; + uint32_t t1; + uint32_t t2; + uint16_t class; + uint32_t iaid; }; +struct odhcp6c_request_prefix { + uint32_t iaid; + uint16_t length; +}; -int init_dhcpv6(const char *ifname, int request_pd); -void dhcpv6_set_ia_na_mode(enum odhcp6c_ia_mode mode); +int init_dhcpv6(const char *ifname, unsigned int client_options, int sol_timeout); +void dhcpv6_set_ia_mode(enum odhcp6c_ia_mode na, enum odhcp6c_ia_mode pd); int dhcpv6_request(enum dhcpv6_msg type); int dhcpv6_poll_reconfigure(void); +int dhcpv6_promote_server_cand(void); int init_rtnetlink(void); int set_rtnetlink_addr(int ifindex, const struct in6_addr *addr, @@ -238,18 +328,21 @@ void script_delay_call(const char *status, int timeout); bool odhcp6c_signal_process(void); uint64_t odhcp6c_get_milli_time(void); void odhcp6c_random(void *buf, size_t len); +bool odhcp6c_is_bound(void); // State manipulation void odhcp6c_clear_state(enum odhcp6c_state state); void odhcp6c_add_state(enum odhcp6c_state state, const void *data, size_t len); +void odhcp6c_append_state(enum odhcp6c_state state, const void *data, size_t len); +void odhcp6c_insert_state(enum odhcp6c_state state, size_t offset, const void *data, size_t len); size_t odhcp6c_remove_state(enum odhcp6c_state state, size_t offset, size_t len); void* odhcp6c_move_state(enum odhcp6c_state state, size_t *len); void* odhcp6c_get_state(enum odhcp6c_state state, size_t *len); // Entry manipulation struct odhcp6c_entry* odhcp6c_find_entry(enum odhcp6c_state state, const struct odhcp6c_entry *new); -void odhcp6c_update_entry(enum odhcp6c_state state, struct odhcp6c_entry *new); -void odhcp6c_update_entry_safe(enum odhcp6c_state state, struct odhcp6c_entry *new, uint32_t safe); +bool odhcp6c_update_entry(enum odhcp6c_state state, struct odhcp6c_entry *new); +bool odhcp6c_update_entry_safe(enum odhcp6c_state state, struct odhcp6c_entry *new, uint32_t safe); void odhcp6c_expire(void); uint32_t odhcp6c_elapsed(void);