X-Git-Url: https://git.decadent.org.uk/gitweb/?p=odhcp6c.git;a=blobdiff_plain;f=src%2Fodhcp6c.h;h=a33a92ea2b56be8bba85a4dc79eb581238c154e5;hp=8ab938e94c9aba78c41fdf2c010a8bb4ec340289;hb=8563be22c8d9e3cf38b26d69d52368c68ad3a6dd;hpb=0b77e6065dc833da19ddff6e04e4f09c805c6883 diff --git a/src/odhcp6c.h b/src/odhcp6c.h index 8ab938e..a33a92e 100644 --- a/src/odhcp6c.h +++ b/src/odhcp6c.h @@ -1,5 +1,5 @@ /** - * Copyright (C) 2012 Steven Barth + * Copyright (C) 2012-2013 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 +21,16 @@ #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 + enum dhcvp6_opt { DHCPV6_OPT_CLIENTID = 1, DHCPV6_OPT_SERVERID = 2, @@ -38,6 +41,7 @@ enum dhcvp6_opt { DHCPV6_OPT_ELAPSED = 8, DHCPV6_OPT_RELAY_MSG = 9, DHCPV6_OPT_AUTH = 11, + DHCPV6_OPT_UNICAST = 12, DHCPV6_OPT_STATUS = 13, DHCPV6_OPT_RAPID_COMMIT = 14, DHCPV6_OPT_RECONF_MESSAGE = 19, @@ -48,6 +52,23 @@ enum dhcvp6_opt { DHCPV6_OPT_IA_PREFIX = 26, DHCPV6_OPT_INFO_REFRESH = 32, DHCPV6_OPT_FQDN = 39, + DHCPV6_OPT_NTP_SERVER = 56, + DHCPV6_OPT_SIP_SERVER_D = 21, + DHCPV6_OPT_SIP_SERVER_A = 22, + DHCPV6_OPT_AFTR_NAME = 64, + DHCPV6_OPT_PD_EXCLUDE = 67, + 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 +}; + +enum dhcpv6_opt_npt { + NTP_SRV_ADDR = 1, + NTP_MC_ADDR = 2, + NTP_SRV_FQDN = 3 }; enum dhcpv6_msg { @@ -66,24 +87,30 @@ 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, - const void *opt, const void *end, uint32_t elapsed); +typedef int(reply_handler)(enum dhcpv6_msg orig, const int rc, + const void *opt, const void *end); // retransmission strategy 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)(uint32_t elapsed); + int(*handler_finish)(void); }; - // DHCPv6 Protocol Headers struct dhcpv6_header { uint8_t msg_type; @@ -122,6 +149,17 @@ struct dhcpv6_duid { uint8_t data[128]; } _packed; +struct dhcpv6_auth_reconfigure { + uint16_t type; + uint16_t len; + uint8_t protocol; + uint8_t algorithm; + uint8_t rdm; + uint64_t replay; + uint8_t reconf_type; + uint8_t key[16]; +} _packed; + #define dhcpv6_for_each_option(start, end, otype, olen, odata)\ for (uint8_t *_o = (uint8_t*)(start); _o + 4 <= (uint8_t*)(end) &&\ @@ -136,6 +174,13 @@ struct dhcpv6_server_cand { int16_t preference; uint8_t duid_len; uint8_t duid[130]; + struct in6_addr server_addr; + uint32_t sol_max_rt; + uint32_t inf_max_rt; + void *ia_na; + void *ia_pd; + size_t ia_na_len; + size_t ia_pd_len; }; @@ -148,8 +193,15 @@ enum odhcp6c_state { STATE_SEARCH, STATE_IA_NA, STATE_IA_PD, - STATE_IA_PD_LOST, STATE_CUSTOM_OPTS, + STATE_SNTP_IP, + STATE_SNTP_FQDN, + STATE_SIP_IP, + STATE_SIP_FQDN, + STATE_RA_ROUTE, + STATE_RA_PREFIX, + STATE_RA_DNS, + STATE_AFTR_NAME, _STATE_MAX }; @@ -162,12 +214,11 @@ 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, @@ -175,27 +226,52 @@ enum odhcp6c_ia_mode { }; -int init_dhcpv6(const char *ifname, int request_pd); -void dhcpv6_set_ia_na_mode(enum odhcp6c_ia_mode mode); +struct odhcp6c_entry { + struct in6_addr router; + uint16_t length; + int16_t priority; + struct in6_addr target; + uint32_t valid; + uint32_t preferred; + uint32_t t1; + uint32_t t2; + uint16_t class; +}; + + +int init_dhcpv6(const char *ifname, int request_pd, 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); -void dhcpv6_remove_addrs(void); +int dhcpv6_promote_server_cand(void); int init_rtnetlink(void); int set_rtnetlink_addr(int ifindex, const struct in6_addr *addr, - time_t pref, time_t valid); + uint32_t pref, uint32_t valid); int script_init(const char *path, const char *ifname); ssize_t script_unhexlify(uint8_t *dst, size_t len, const char *src); void script_call(const char *status); +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); +bool odhcp6c_addr_in_scope(const struct in6_addr *addr); // State manipulation -bool odhcp6c_signal_is_pending(void); -uint64_t adhc6c_get_milli_time(void); void odhcp6c_clear_state(enum odhcp6c_state state); void odhcp6c_add_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); -bool odhcp6c_commit_state(enum odhcp6c_state state, size_t old_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); +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);