X-Git-Url: https://git.decadent.org.uk/gitweb/?p=odhcp6c.git;a=blobdiff_plain;f=src%2Fodhcp6c.h;h=08a816f4446dd893d89db315bf6f8932200ab2b8;hp=f9a3fec553f137bb579c41b64acd465a6b72b6d1;hb=687b3c65c0460dd8c4ba7e63e3ae0ab20836e6e8;hpb=69128a57204554ce433cbc8860c8c1077092ac58 diff --git a/src/odhcp6c.h b/src/odhcp6c.h index f9a3fec..08a816f 100644 --- a/src/odhcp6c.h +++ b/src/odhcp6c.h @@ -18,18 +18,19 @@ #define _unused __attribute__((unused)) #define _packed __attribute__((packed)) +#define __aligned(n) __attribute__((aligned(n))) #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) #define ND_OPT_RECURSIVE_DNS 25 #define ND_OPT_DNSSL 31 -#define DHCPV6_SOL_MAX_RT 3600 +#define DHCPV6_SOL_MAX_RT 120 #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 DHCPV6_INF_MAX_RT 120 #define DEFAULT_MIN_UPDATE_INTERVAL 30 @@ -37,12 +38,14 @@ enum dhcvp6_opt { DHCPV6_OPT_CLIENTID = 1, DHCPV6_OPT_SERVERID = 2, DHCPV6_OPT_IA_NA = 3, + DHCPV6_OPT_IA_TA = 4, DHCPV6_OPT_IA_ADDR = 5, DHCPV6_OPT_ORO = 6, DHCPV6_OPT_PREF = 7, 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_USER_CLASS = 15, @@ -63,10 +66,19 @@ enum dhcvp6_opt { 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, +#ifdef EXT_CER_ID + /* draft-donley-dhc-cer-id-option-03 */ + DHCPV6_OPT_CER_ID = EXT_CER_ID, #endif + /* draft-ietf-softwire-map-dhcp-08 */ + DHCPV6_OPT_S46_RULE = 89, + DHCPV6_OPT_S46_BR = 90, + DHCPV6_OPT_S46_DMR = 91, + DHCPV6_OPT_S46_V4V6BIND = 92, + DHCPV6_OPT_S46_PORTPARAMS = 93, + DHCPV6_OPT_S46_CONT_MAPE = 94, + DHCPV6_OPT_S46_CONT_MAPT = 95, + DHCPV6_OPT_S46_CONT_LW = 96, }; enum dhcpv6_opt_npt { @@ -108,7 +120,7 @@ enum dhcpv6_config { }; typedef int(reply_handler)(enum dhcpv6_msg orig, const int rc, - const void *opt, const void *end); + const void *opt, const void *end, const struct sockaddr_in6 *from); // retransmission strategy struct dhcpv6_retx { @@ -170,6 +182,37 @@ struct dhcpv6_auth_reconfigure { uint8_t key[16]; } _packed; +struct dhcpv6_cer_id { + uint16_t type; + uint16_t len; + 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) &&\ @@ -197,6 +240,7 @@ enum odhcp6c_state { STATE_CLIENT_ID, STATE_SERVER_ID, STATE_SERVER_CAND, + STATE_SERVER_ADDR, STATE_ORO, STATE_DNS, STATE_SEARCH, @@ -212,9 +256,15 @@ enum odhcp6c_state { STATE_RA_ROUTE, STATE_RA_PREFIX, STATE_RA_DNS, + STATE_RA_SEARCH, STATE_AFTR_NAME, STATE_VENDORCLASS, STATE_USERCLASS, + STATE_CER, + STATE_S46_MAPT, + STATE_S46_MAPE, + STATE_S46_LW, + STATE_PASSTHRU, _STATE_MAX }; @@ -241,24 +291,33 @@ enum odhcp6c_ia_mode { struct odhcp6c_entry { struct in6_addr router; - uint16_t length; + uint8_t auxlen; + uint8_t length; int16_t priority; struct in6_addr target; uint32_t valid; uint32_t preferred; uint32_t t1; uint32_t t2; - uint16_t class; uint32_t iaid; + uint8_t auxtarget[]; }; +// Include padding after auxtarget to align the next entry +#define odhcp6c_entry_size(entry) \ + (sizeof(struct odhcp6c_entry) + (((entry)->auxlen + 3) & ~3)) + +#define odhcp6c_next_entry(entry) \ + ((struct odhcp6c_entry *)((uint8_t *)(entry) + odhcp6c_entry_size(entry))) + + struct odhcp6c_request_prefix { uint32_t iaid; uint16_t length; }; 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_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); @@ -267,29 +326,31 @@ int init_rtnetlink(void); int set_rtnetlink_addr(int ifindex, const struct in6_addr *addr, uint32_t pref, uint32_t valid); +int ra_conf_hoplimit(int newvalue); +int ra_conf_mtu(int newvalue); +int ra_conf_reachable(int newvalue); +int ra_conf_retransmit(int newvalue); + 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); +void script_call(const char *status, int delay, bool resume); bool odhcp6c_signal_process(void); uint64_t odhcp6c_get_milli_time(void); -void odhcp6c_random(void *buf, size_t len); +int 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); +int 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); -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); +bool odhcp6c_update_entry(enum odhcp6c_state state, struct odhcp6c_entry *new, uint32_t safe, bool filterexcess); void odhcp6c_expire(void); uint32_t odhcp6c_elapsed(void);