/**
- * Copyright (C) 2012 Steven Barth <steven@midlink.org>
+ * Copyright (C) 2012-2014 Steven Barth <steven@midlink.org>
*
* 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
#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,
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,
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
+#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 {
};
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);
+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
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;
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;
+
+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) &&\
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;
+ size_t ia_pd_len;
};
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
};
enum dhcpv6_mode {
- DHCPV6_UNKNOWN,
+ DHCPV6_UNKNOWN = -1,
DHCPV6_STATELESS,
DHCPV6_STATEFUL
};
-
enum odhcp6c_ia_mode {
IA_MODE_NONE,
IA_MODE_TRY,
};
-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;
+ uint32_t iaid;
+};
+
+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_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,
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);
// State manipulation
-bool odhcp6c_signal_is_pending(void);
-uint64_t odhcp6c_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_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);
-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);
projects / odhcp6c.git / blobdiff