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|
/* $OpenBSD: iked.h,v 1.57 2013/11/14 12:38:20 markus Exp $ */
/*
* Copyright (c) 2010-2013 Reyk Floeter <reyk@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/tree.h>
#include <sys/queue.h>
#include <imsg.h>
#include "types.h"
#include "dh.h"
#ifndef _IKED_H
#define _IKED_H
/*
* Common IKEv1/IKEv2 header
*/
struct ike_header {
u_int64_t ike_ispi; /* Initiator cookie */
u_int64_t ike_rspi; /* Responder cookie */
u_int8_t ike_nextpayload; /* Next payload type */
u_int8_t ike_version; /* Major/Minor version number */
u_int8_t ike_exchange; /* Exchange type */
u_int8_t ike_flags; /* Message options */
u_int32_t ike_msgid; /* Message identifier */
u_int32_t ike_length; /* Total message length */
} __packed;
/*
* Common daemon infrastructure, local imsg etc.
*/
struct imsgev {
struct imsgbuf ibuf;
void (*handler)(int, short, void *);
struct event ev;
void *data;
short events;
const char *name;
};
#define IMSG_SIZE_CHECK(imsg, p) do { \
if (IMSG_DATA_SIZE(imsg) < sizeof(*p)) \
fatalx("bad length imsg received"); \
} while (0)
#define IMSG_DATA_SIZE(imsg) ((imsg)->hdr.len - IMSG_HEADER_SIZE)
#define IKED_ADDR_EQ(_a, _b) \
((_a)->addr_mask == (_b)->addr_mask && \
sockaddr_cmp((struct sockaddr *)&(_a)->addr, \
(struct sockaddr *)&(_b)->addr, (_a)->addr_mask) == 0)
#define IKED_ADDR_NEQ(_a, _b) \
((_a)->addr_mask != (_b)->addr_mask || \
sockaddr_cmp((struct sockaddr *)&(_a)->addr, \
(struct sockaddr *)&(_b)->addr, (_a)->addr_mask) != 0)
/* initially control.h */
struct control_sock {
const char *cs_name;
struct event cs_ev;
struct event cs_evt;
int cs_fd;
int cs_restricted;
void *cs_env;
};
struct ctl_conn {
TAILQ_ENTRY(ctl_conn) entry;
u_int8_t flags;
#define CTL_CONN_NOTIFY 0x01
struct imsgev iev;
};
TAILQ_HEAD(ctl_connlist, ctl_conn);
extern struct ctl_connlist ctl_conns;
enum privsep_procid privsep_process;
/*
* Runtime structures
*/
struct iked_timer {
struct event tmr_ev;
struct iked *tmr_env;
void (*tmr_cb)(struct iked *, void *);
void *tmr_cbarg;
};
struct iked_spi {
u_int64_t spi;
u_int8_t spi_size;
u_int8_t spi_protoid;
};
struct iked_proposal {
u_int8_t prop_id;
u_int8_t prop_protoid;
struct iked_spi prop_localspi;
struct iked_spi prop_peerspi;
struct iked_transform *prop_xforms;
u_int prop_nxforms;
TAILQ_ENTRY(iked_proposal) prop_entry;
};
TAILQ_HEAD(iked_proposals, iked_proposal);
struct iked_addr {
int addr_af;
struct sockaddr_storage addr;
u_int8_t addr_mask;
int addr_net;
in_port_t addr_port;
};
struct iked_flow {
struct iked_addr flow_src;
struct iked_addr flow_dst;
u_int flow_dir; /* in/out */
u_int flow_loaded; /* pfkey done */
u_int8_t flow_saproto;
u_int8_t flow_ipproto;
u_int8_t flow_type;
struct iked_id *flow_srcid;
struct iked_id *flow_dstid;
struct iked_addr *flow_local; /* outer source */
struct iked_addr *flow_peer; /* outer dest */
struct iked_sa *flow_ikesa; /* parent SA */
RB_ENTRY(iked_flow) flow_node;
TAILQ_ENTRY(iked_flow) flow_entry;
};
RB_HEAD(iked_flows, iked_flow);
TAILQ_HEAD(iked_saflows, iked_flow);
struct iked_childsa {
u_int8_t csa_saproto; /* IPSec protocol */
u_int csa_dir; /* in/out */
u_int64_t csa_peerspi; /* peer relation */
u_int8_t csa_loaded; /* pfkey done */
u_int8_t csa_rekey; /* will be deleted */
u_int8_t csa_allocated; /* from the kernel */
u_int8_t csa_persistent;/* do not rekey */
u_int8_t csa_esn; /* use ESN */
struct iked_spi csa_spi;
struct ibuf *csa_encrkey; /* encryption key */
struct iked_transform *csa_encrxf; /* encryption xform */
struct ibuf *csa_integrkey; /* auth key */
struct iked_transform *csa_integrxf; /* auth xform */
struct iked_id *csa_srcid;
struct iked_id *csa_dstid;
struct iked_addr *csa_local; /* outer source */
struct iked_addr *csa_peer; /* outer dest */
struct iked_sa *csa_ikesa; /* parent SA */
struct iked_childsa *csa_peersa; /* peer */
RB_ENTRY(iked_childsa) csa_node;
TAILQ_ENTRY(iked_childsa) csa_entry;
};
RB_HEAD(iked_activesas, iked_childsa);
TAILQ_HEAD(iked_childsas, iked_childsa);
struct iked_static_id {
u_int8_t id_type;
u_int8_t id_length;
u_int8_t id_offset;
u_int8_t id_data[IKED_ID_SIZE];
};
struct iked_auth {
u_int8_t auth_method;
u_int8_t auth_eap; /* optional EAP */
u_int8_t auth_length; /* zero if EAP */
u_int8_t auth_data[IKED_PSK_SIZE];
};
struct iked_cfg {
u_int8_t cfg_action;
u_int16_t cfg_type;
union {
struct iked_addr address;
} cfg;
};
RB_HEAD(iked_sapeers, iked_sa);
struct iked_lifetime {
u_int64_t lt_bytes;
u_int64_t lt_seconds;
};
struct iked_policy {
u_int pol_id;
char pol_name[IKED_ID_SIZE];
#define IKED_SKIP_FLAGS 0
#define IKED_SKIP_AF 1
#define IKED_SKIP_PROTO 2
#define IKED_SKIP_SRC_ADDR 3
#define IKED_SKIP_DST_ADDR 4
#define IKED_SKIP_COUNT 5
struct iked_policy *pol_skip[IKED_SKIP_COUNT];
u_int8_t pol_flags;
#define IKED_POLICY_PASSIVE 0x00
#define IKED_POLICY_DEFAULT 0x01
#define IKED_POLICY_ACTIVE 0x02
#define IKED_POLICY_REFCNT 0x04
#define IKED_POLICY_QUICK 0x08
#define IKED_POLICY_SKIP 0x10
int pol_refcnt;
int pol_af;
u_int8_t pol_saproto;
u_int pol_ipproto;
struct iked_addr pol_peer;
struct group *pol_peerdh;
struct iked_static_id pol_peerid;
struct iked_addr pol_local;
struct iked_static_id pol_localid;
struct iked_auth pol_auth;
char pol_tag[IKED_TAG_SIZE];
u_int pol_tap;
struct iked_proposals pol_proposals;
size_t pol_nproposals;
struct iked_flows pol_flows;
size_t pol_nflows;
struct iked_cfg pol_cfg[IKED_CFG_MAX];
u_int pol_ncfg;
struct iked_lifetime pol_lifetime;
struct iked_sapeers pol_sapeers;
TAILQ_ENTRY(iked_policy) pol_entry;
};
TAILQ_HEAD(iked_policies, iked_policy);
struct iked_hash {
u_int8_t hash_type; /* PRF or INTEGR */
u_int16_t hash_id; /* IKE PRF/INTEGR hash id */
const void *hash_priv; /* Identifying the hash alg */
void *hash_ctx; /* Context of the current invocation */
int hash_fixedkey; /* Requires fixed key length */
struct ibuf *hash_key; /* MAC key derived from key seed */
size_t hash_length; /* Output length */
size_t hash_trunc; /* Truncate the output length */
struct iked_hash *hash_prf; /* PRF pointer */
};
struct iked_cipher {
u_int8_t encr_type; /* ENCR */
u_int16_t encr_id; /* IKE ENCR hash id */
const void *encr_priv; /* Identifying the hash alg */
void *encr_ctx; /* Context of the current invocation */
int encr_fixedkey; /* Requires fixed key length */
struct ibuf *encr_key; /* MAC key derived from key seed */
struct ibuf *encr_iv; /* Initialization Vector */
size_t encr_ivlength; /* IV length */
size_t encr_length; /* Block length */
};
struct iked_dsa {
u_int8_t dsa_method; /* AUTH method */
const void *dsa_priv; /* PRF or signature hash function */
void *dsa_ctx; /* PRF or signature hash ctx */
struct ibuf *dsa_keydata; /* public, private or shared key */
void *dsa_key; /* parsed public or private key */
void *dsa_cert; /* parsed certificate */
int dsa_hmac; /* HMAC or public/private key */
int dsa_sign; /* Sign or verify operation */
};
struct iked_id {
u_int8_t id_type;
u_int8_t id_offset;
struct ibuf *id_buf;
};
#define IKED_REQ_CERT 0x01 /* get local certificate (if required) */
#define IKED_REQ_VALID 0x02 /* validate the peer cert */
#define IKED_REQ_AUTH 0x04 /* AUTH payload */
#define IKED_REQ_SA 0x08 /* SA available */
#define IKED_REQ_CHILDSA 0x10 /* Child SA initiated */
#define IKED_REQ_INF 0x20 /* Informational exchange initiated */
#define IKED_REQ_DELETE 0x40 /* Rekeying continuation */
#define IKED_REQ_BITS \
"\10\01CERT\02VALID\03AUTH\04SA"
TAILQ_HEAD(iked_msgqueue, iked_message);
struct iked_sahdr {
u_int64_t sh_ispi; /* Initiator SPI */
u_int64_t sh_rspi; /* Responder SPI */
u_int sh_initiator; /* Is initiator? */
} __packed;
struct iked_sa {
struct iked_sahdr sa_hdr;
u_int32_t sa_msgid;
u_int32_t sa_reqid;
int sa_type;
#define IKED_SATYPE_LOOKUP 0 /* Used for lookup */
#define IKED_SATYPE_LOCAL 1 /* Local SA */
struct iked_addr sa_peer;
struct iked_addr sa_polpeer;
struct iked_addr sa_local;
int sa_fd;
int sa_natt; /* for IKE messages */
int sa_udpencap; /* for pfkey */
int sa_state;
u_int sa_stateflags;
u_int sa_stateinit; /* SA_INIT */
u_int sa_statevalid; /* IKE_AUTH */
int sa_cp; /* XXX */
struct iked_policy *sa_policy;
struct timeval sa_timecreated;
struct timeval sa_timeused;
char *sa_tag;
struct ibuf *sa_inonce; /* Ni */
struct ibuf *sa_rnonce; /* Nr */
struct group *sa_dhgroup; /* DH group */
struct ibuf *sa_dhiexchange;
struct ibuf *sa_dhrexchange;
struct ibuf *sa_dhpeer; /* pointer to i or r */
struct iked_hash *sa_prf; /* PRF alg */
struct iked_hash *sa_integr; /* integrity alg */
struct iked_cipher *sa_encr; /* encryption alg */
struct ibuf *sa_key_d; /* SK_d */
struct ibuf *sa_key_iauth; /* SK_ai */
struct ibuf *sa_key_rauth; /* SK_ar */
struct ibuf *sa_key_iencr; /* SK_ei */
struct ibuf *sa_key_rencr; /* SK_er */
struct ibuf *sa_key_iprf; /* SK_pi */
struct ibuf *sa_key_rprf; /* SK_pr */
struct ibuf *sa_1stmsg; /* for initiator AUTH */
struct ibuf *sa_2ndmsg; /* for responder AUTH */
struct iked_id sa_localauth; /* local AUTH message */
struct iked_id sa_iid; /* initiator id */
struct iked_id sa_rid; /* responder id */
struct iked_id sa_icert; /* initiator cert */
struct iked_id sa_rcert; /* responder cert */
char *sa_eapid; /* EAP identity */
struct iked_id sa_eap; /* EAP challenge */
struct ibuf *sa_eapmsk; /* EAK session key */
struct iked_proposals sa_proposals; /* SA proposals */
struct iked_childsas sa_childsas; /* IPSec Child SAs */
struct iked_saflows sa_flows; /* IPSec flows */
struct iked_timer sa_timer; /* SA timeouts */
#define IKED_IKE_SA_REKEY_TIMEOUT 300 /* 5 minutes */
struct iked_msgqueue sa_requests; /* request queue */
#define IKED_RETRANSMIT_TIMEOUT 2 /* 2 seconds */
struct iked_msgqueue sa_responses; /* response queue */
#define IKED_RESPONSE_TIMEOUT 120 /* 2 minutes */
RB_ENTRY(iked_sa) sa_peer_entry;
RB_ENTRY(iked_sa) sa_entry;
};
RB_HEAD(iked_sas, iked_sa);
struct iked_message {
struct ibuf *msg_data;
off_t msg_offset;
struct sockaddr_storage msg_local;
socklen_t msg_locallen;
struct sockaddr_storage msg_peer;
socklen_t msg_peerlen;
struct iked_socket *msg_sock;
int msg_fd;
int msg_response;
int msg_natt;
int msg_error;
int msg_e;
struct iked_message *msg_parent;
/* Associated policy and SA */
struct iked_policy *msg_policy;
struct iked_sa *msg_sa;
u_int32_t msg_msgid;
u_int8_t msg_exchange;
/* Parsed information */
struct iked_proposals msg_proposals;
struct iked_spi msg_rekey;
struct ibuf *msg_nonce; /* dh NONCE */
struct ibuf *msg_ke; /* dh key exchange */
struct iked_id msg_auth; /* AUTH payload */
struct iked_id msg_id;
struct iked_id msg_cert;
/* Parse stack */
struct iked_proposal *msg_prop;
u_int16_t msg_attrlength;
/* Retransmit queue */
struct iked_timer msg_timer;
TAILQ_ENTRY(iked_message)
msg_entry;
int msg_tries; /* retransmits sent */
#define IKED_RETRANSMIT_TRIES 5 /* try 5 times */
};
struct iked_user {
char usr_name[MAXLOGNAME];
char usr_pass[IKED_PASSWORD_SIZE];
RB_ENTRY(iked_user) usr_entry;
};
RB_HEAD(iked_users, iked_user);
struct privsep {
int ps_pipes[PROC_MAX][PROC_MAX];
struct imsgev ps_ievs[PROC_MAX];
const char *ps_title[PROC_MAX];
pid_t ps_pid[PROC_MAX];
struct passwd *ps_pw;
struct control_sock ps_csock;
/* Event and signal handlers */
struct event ps_evsigint;
struct event ps_evsigterm;
struct event ps_evsigchld;
struct event ps_evsighup;
struct event ps_evsigpipe;
struct iked *ps_env;
};
struct privsep_proc {
const char *p_title;
enum privsep_procid p_id;
int (*p_cb)(int, struct privsep_proc *,
struct imsg *);
pid_t (*p_init)(struct privsep *,
struct privsep_proc *);
const char *p_chroot;
struct privsep *p_ps;
struct iked *p_env;
};
/*
* Daemon configuration
*/
struct iked {
char sc_conffile[MAXPATHLEN];
u_int32_t sc_opts;
u_int8_t sc_passive;
u_int8_t sc_decoupled;
struct iked_policies sc_policies;
struct iked_policy *sc_defaultcon;
struct iked_sas sc_sas;
struct iked_activesas sc_activesas;
struct iked_flows sc_activeflows;
struct iked_users sc_users;
void *sc_priv; /* per-process */
int sc_pfkey; /* ike process */
struct event sc_pfkeyev;
u_int8_t sc_certreqtype;
struct ibuf *sc_certreq;
struct iked_socket *sc_sock4[2];
struct iked_socket *sc_sock6[2];
struct iked_timer sc_inittmr;
#define IKED_INITIATOR_INITIAL 2
#define IKED_INITIATOR_INTERVAL 60
struct privsep sc_ps;
};
struct iked_socket {
int sock_fd;
struct event sock_ev;
struct iked *sock_env;
struct sockaddr_storage sock_addr;
};
/* iked.c */
void parent_reload(struct iked *, int, const char *);
/* control.c */
int control_init(struct privsep *, struct control_sock *);
int control_listen(struct control_sock *);
void control_cleanup(struct control_sock *);
/* config.c */
struct iked_policy *
config_new_policy(struct iked *);
void config_free_sa(struct iked *, struct iked_sa *);
struct iked_sa *
config_new_sa(struct iked *, int);
struct iked_user *
config_new_user(struct iked *, struct iked_user *);
u_int64_t
config_getspi(void);
struct iked_transform *
config_findtransform(struct iked_proposals *, u_int8_t);
void config_free_policy(struct iked *, struct iked_policy *);
struct iked_proposal *
config_add_proposal(struct iked_proposals *, u_int, u_int);
void config_free_proposals(struct iked_proposals *, u_int);
void config_free_flows(struct iked *, struct iked_flows *);
void config_free_childsas(struct iked *, struct iked_childsas *,
struct iked_spi *, struct iked_spi *);
struct iked_transform *
config_add_transform(struct iked_proposal *,
u_int, u_int, u_int, u_int);
int config_setcoupled(struct iked *, u_int);
int config_getcoupled(struct iked *, u_int);
int config_setmode(struct iked *, u_int);
int config_getmode(struct iked *, u_int);
int config_setreset(struct iked *, u_int, enum privsep_procid);
int config_getreset(struct iked *, struct imsg *);
int config_setpolicy(struct iked *, struct iked_policy *,
enum privsep_procid);
int config_getpolicy(struct iked *, struct imsg *);
int config_setsocket(struct iked *, struct sockaddr_storage *, in_port_t,
enum privsep_procid);
int config_getsocket(struct iked *env, struct imsg *,
void (*cb)(int, short, void *));
int config_setpfkey(struct iked *, enum privsep_procid);
int config_getpfkey(struct iked *, struct imsg *);
int config_setuser(struct iked *, struct iked_user *, enum privsep_procid);
int config_getuser(struct iked *, struct imsg *);
int config_setcompile(struct iked *, enum privsep_procid);
int config_getcompile(struct iked *, struct imsg *);
/* policy.c */
void policy_init(struct iked *);
int policy_lookup(struct iked *, struct iked_message *);
struct iked_policy *
policy_test(struct iked *, struct iked_policy *);
void policy_calc_skip_steps(struct iked_policies *);
void policy_ref(struct iked *, struct iked_policy *);
void policy_unref(struct iked *, struct iked_policy *);
void sa_state(struct iked *, struct iked_sa *, int);
void sa_stateflags(struct iked_sa *, u_int);
int sa_stateok(struct iked_sa *, int);
struct iked_sa *
sa_new(struct iked *, u_int64_t, u_int64_t, u_int,
struct iked_policy *);
void sa_free(struct iked *, struct iked_sa *);
void sa_free_flows(struct iked *, struct iked_saflows *);
int sa_address(struct iked_sa *, struct iked_addr *,
struct sockaddr_storage *, int);
void childsa_free(struct iked_childsa *);
struct iked_childsa *
childsa_lookup(struct iked_sa *, u_int64_t, u_int8_t);
void flow_free(struct iked_flow *);
struct iked_sa *
sa_lookup(struct iked *, u_int64_t, u_int64_t, u_int);
struct iked_sa *
sa_peer_lookup(struct iked_policy *, struct sockaddr_storage *);
struct iked_user *
user_lookup(struct iked *, const char *);
RB_PROTOTYPE(iked_sas, iked_sa, sa_entry, sa_cmp);
RB_PROTOTYPE(iked_sapeers, iked_sa, sa_peer_entry, sa_peer_cmp);
RB_PROTOTYPE(iked_users, iked_user, user_entry, user_cmp);
RB_PROTOTYPE(iked_activesas, iked_childsa, csa_node, childsa_cmp);
RB_PROTOTYPE(iked_flows, iked_flow, flow_node, flow_cmp);
/* crypto.c */
struct iked_hash *
hash_new(u_int8_t, u_int16_t);
struct ibuf *
hash_setkey(struct iked_hash *, void *, size_t);
void hash_free(struct iked_hash *);
void hash_init(struct iked_hash *);
void hash_update(struct iked_hash *, void *, size_t);
void hash_final(struct iked_hash *, void *, size_t *);
size_t hash_keylength(struct iked_hash *);
size_t hash_length(struct iked_hash *);
struct iked_cipher *
cipher_new(u_int8_t, u_int16_t, u_int16_t);
struct ibuf *
cipher_setkey(struct iked_cipher *, void *, size_t);
struct ibuf *
cipher_setiv(struct iked_cipher *, void *, size_t);
void cipher_free(struct iked_cipher *);
void cipher_init(struct iked_cipher *, int);
void cipher_init_encrypt(struct iked_cipher *);
void cipher_init_decrypt(struct iked_cipher *);
void cipher_update(struct iked_cipher *, void *, size_t, void *, size_t *);
void cipher_final(struct iked_cipher *, void *, size_t *);
size_t cipher_length(struct iked_cipher *);
size_t cipher_keylength(struct iked_cipher *);
size_t cipher_ivlength(struct iked_cipher *);
size_t cipher_outlength(struct iked_cipher *, size_t);
struct iked_dsa *
dsa_new(u_int16_t, struct iked_hash *, int);
struct iked_dsa *
dsa_sign_new(u_int16_t, struct iked_hash *);
struct iked_dsa *
dsa_verify_new(u_int16_t, struct iked_hash *);
struct ibuf *
dsa_setkey(struct iked_dsa *, void *, size_t, u_int8_t);
void dsa_free(struct iked_dsa *);
int dsa_init(struct iked_dsa *);
size_t dsa_length(struct iked_dsa *);
int dsa_update(struct iked_dsa *, const void *, size_t);
ssize_t dsa_sign_final(struct iked_dsa *, void *, size_t);
ssize_t dsa_verify_final(struct iked_dsa *, void *, size_t);
/* ikev1.c */
pid_t ikev1(struct privsep *, struct privsep_proc *);
/* ikev2.c */
pid_t ikev2(struct privsep *, struct privsep_proc *);
void ikev2_recv(struct iked *, struct iked_message *);
void ikev2_init_ike_sa(struct iked *, void *);
int ikev2_sa_negotiate(struct iked_sa *, struct iked_proposals *,
struct iked_proposals *);
int ikev2_policy2id(struct iked_static_id *, struct iked_id *, int);
int ikev2_childsa_enable(struct iked *, struct iked_sa *);
int ikev2_childsa_delete(struct iked *, struct iked_sa *,
u_int8_t, u_int64_t, u_int64_t *, int);
struct ibuf *
ikev2_prfplus(struct iked_hash *, struct ibuf *, struct ibuf *,
size_t);
ssize_t ikev2_psk(struct iked_sa *, u_int8_t *, size_t, u_int8_t **);
ssize_t ikev2_nat_detection(struct iked *, struct iked_message *,
void *, size_t, u_int);
int ikev2_send_informational(struct iked *, struct iked_message *);
int ikev2_send_ike_e(struct iked *, struct iked_sa *, struct ibuf *,
u_int8_t, u_int8_t, int);
struct ike_header *
ikev2_add_header(struct ibuf *, struct iked_sa *,
u_int32_t, u_int8_t, u_int8_t, u_int8_t);
int ikev2_set_header(struct ike_header *, size_t);
struct ikev2_payload *
ikev2_add_payload(struct ibuf *);
int ikev2_next_payload(struct ikev2_payload *, size_t,
u_int8_t);
void ikev2_acquire_sa(struct iked *, struct iked_flow *);
void ikev2_disable_rekeying(struct iked *, struct iked_sa *);
void ikev2_rekey_sa(struct iked *, struct iked_spi *);
void ikev2_drop_sa(struct iked *, struct iked_spi *);
int ikev2_print_id(struct iked_id *, char *, size_t);
/* ikev2_msg.c */
void ikev2_msg_cb(int, short, void *);
struct ibuf *
ikev2_msg_init(struct iked *, struct iked_message *,
struct sockaddr_storage *, socklen_t,
struct sockaddr_storage *, socklen_t, int);
struct iked_message *
ikev2_msg_copy(struct iked *, struct iked_message *);
void ikev2_msg_cleanup(struct iked *, struct iked_message *);
u_int32_t
ikev2_msg_id(struct iked *, struct iked_sa *);
struct ibuf
*ikev2_msg_auth(struct iked *, struct iked_sa *, int);
int ikev2_msg_authsign(struct iked *, struct iked_sa *,
struct iked_auth *, struct ibuf *);
int ikev2_msg_authverify(struct iked *, struct iked_sa *,
struct iked_auth *, u_int8_t *, size_t, struct ibuf *);
int ikev2_msg_valid_ike_sa(struct iked *, struct ike_header *,
struct iked_message *);
int ikev2_msg_send(struct iked *, struct iked_message *);
int ikev2_msg_send_encrypt(struct iked *, struct iked_sa *,
struct ibuf **, u_int8_t, u_int8_t, int);
struct ibuf
*ikev2_msg_encrypt(struct iked *, struct iked_sa *, struct ibuf *);
struct ibuf *
ikev2_msg_decrypt(struct iked *, struct iked_sa *,
struct ibuf *, struct ibuf *);
int ikev2_msg_integr(struct iked *, struct iked_sa *, struct ibuf *);
int ikev2_msg_frompeer(struct iked_message *);
struct iked_socket *
ikev2_msg_getsocket(struct iked *, int, int);
int ikev2_msg_retransmit_response(struct iked *, struct iked_sa *,
struct iked_message *);
void ikev2_msg_prevail(struct iked *, struct iked_msgqueue *,
struct iked_message *);
void ikev2_msg_dispose(struct iked *, struct iked_msgqueue *,
struct iked_message *);
void ikev2_msg_flushqueue(struct iked *, struct iked_msgqueue *);
struct iked_message *
ikev2_msg_lookup(struct iked *, struct iked_msgqueue *,
struct iked_message *, struct ike_header *);
/* ikev2_pld.c */
int ikev2_pld_parse(struct iked *, struct ike_header *,
struct iked_message *, off_t);
/* eap.c */
ssize_t eap_identity_request(struct ibuf *);
int eap_parse(struct iked *, struct iked_sa *, void *, int);
/* pfkey.c */
int pfkey_couple(int, struct iked_sas *, int);
int pfkey_flow_add(int fd, struct iked_flow *);
int pfkey_flow_delete(int fd, struct iked_flow *);
int pfkey_block(int, int, u_int);
int pfkey_sa_init(int, struct iked_childsa *, u_int32_t *);
int pfkey_sa_add(int, struct iked_childsa *, struct iked_childsa *);
int pfkey_sa_delete(int, struct iked_childsa *);
int pfkey_flush(int);
int pfkey_socket(void);
void pfkey_init(struct iked *, int fd);
/* ca.c */
pid_t caproc(struct privsep *, struct privsep_proc *);
int ca_setreq(struct iked *, struct iked_sahdr *, struct iked_static_id *,
u_int8_t, u_int8_t *, size_t, enum privsep_procid);
int ca_setcert(struct iked *, struct iked_sahdr *, struct iked_id *,
u_int8_t, u_int8_t *, size_t, enum privsep_procid);
int ca_setauth(struct iked *, struct iked_sa *,
struct ibuf *, enum privsep_procid);
void ca_sslinit(void);
void ca_sslerror(const char *);
char *ca_asn1_name(u_int8_t *, size_t);
char *ca_x509_name(void *);
/* timer.c */
void timer_initialize(struct iked *, struct iked_timer *,
void (*)(struct iked *, void *), void *);
int timer_initialized(struct iked *, struct iked_timer *);
void timer_register(struct iked *, struct iked_timer *, int);
void timer_deregister(struct iked *, struct iked_timer *);
/* proc.c */
void proc_init(struct privsep *, struct privsep_proc *, u_int);
void proc_kill(struct privsep *);
void proc_config(struct privsep *, struct privsep_proc *, u_int);
void proc_dispatch(int, short event, void *);
pid_t proc_run(struct privsep *, struct privsep_proc *,
struct privsep_proc *, u_int,
void (*)(struct privsep *, void *), void *);
void imsg_event_add(struct imsgev *);
int imsg_compose_event(struct imsgev *, u_int16_t, u_int32_t,
pid_t, int, void *, u_int16_t);
int imsg_composev_event(struct imsgev *, u_int16_t, u_int32_t,
pid_t, int, const struct iovec *, int);
int proc_compose_imsg(struct iked *, enum privsep_procid,
u_int16_t, int, void *, u_int16_t);
int proc_composev_imsg(struct iked *, enum privsep_procid,
u_int16_t, int, const struct iovec *, int);
int proc_forward_imsg(struct iked *, struct imsg *,
enum privsep_procid);
void proc_flush_imsg(struct iked *, enum privsep_procid);
/* util.c */
void socket_set_blockmode(int, enum blockmodes);
int socket_af(struct sockaddr *, in_port_t);
in_port_t
socket_getport(struct sockaddr_storage *);
int socket_getaddr(int, struct sockaddr_storage *);
int socket_bypass(int, struct sockaddr *);
int udp_bind(struct sockaddr *, in_port_t);
ssize_t recvfromto(int, void *, size_t, int, struct sockaddr *,
socklen_t *, struct sockaddr *, socklen_t *);
const char *
print_spi(u_int64_t, int);
const char *
print_map(u_int, struct iked_constmap *);
void lc_string(char *);
void print_hex(u_int8_t *, off_t, size_t);
void print_hexval(u_int8_t *, off_t, size_t);
const char *
print_bits(u_short, char *);
int sockaddr_cmp(struct sockaddr *, struct sockaddr *, int);
u_int8_t mask2prefixlen(struct sockaddr *);
u_int8_t mask2prefixlen6(struct sockaddr *);
struct in6_addr *
prefixlen2mask6(u_int8_t, u_int32_t *);
u_int32_t
prefixlen2mask(u_int8_t);
const char *
print_host(struct sockaddr_storage *, char *, size_t);
char *get_string(u_int8_t *, size_t);
const char *
print_proto(u_int8_t);
int expand_string(char *, size_t, const char *, const char *);
u_int8_t *string2unicode(const char *, size_t *);
/* imsg_util.c */
struct ibuf *
ibuf_new(void *, size_t);
struct ibuf *
ibuf_static(void);
int ibuf_cat(struct ibuf *, struct ibuf *);
void ibuf_release(struct ibuf *);
size_t ibuf_length(struct ibuf *);
int ibuf_setsize(struct ibuf *, size_t);
u_int8_t *
ibuf_data(struct ibuf *);
void *ibuf_getdata(struct ibuf *, size_t);
struct ibuf *
ibuf_get(struct ibuf *, size_t);
struct ibuf *
ibuf_dup(struct ibuf *);
struct ibuf *
ibuf_random(size_t);
int ibuf_prepend(struct ibuf *, void *, size_t);
void *ibuf_advance(struct ibuf *, size_t);
void ibuf_zero(struct ibuf *);
/* log.c */
void log_init(int);
void log_verbose(int);
void log_warn(const char *, ...);
void log_warnx(const char *, ...);
void log_info(const char *, ...);
void log_debug(const char *, ...);
void print_debug(const char *, ...);
void print_verbose(const char *, ...);
__dead void fatal(const char *);
__dead void fatalx(const char *);
/* parse.y */
int parse_config(const char *, struct iked *);
void print_user(struct iked_user *);
void print_policy(struct iked_policy *);
size_t keylength_xf(u_int, u_int, u_int);
size_t noncelength_xf(u_int, u_int);
int cmdline_symset(char *);
#endif /* _IKED_H */
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