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#ifndef _TLS_PROXY_H_INCLUDED_
#define _TLS_PROXY_H_INCLUDED_
/*++
/* NAME
/* tls_proxy_clnt 3h
/* SUMMARY
/* postscreen TLS proxy support
/* SYNOPSIS
/* #include <tls_proxy_clnt.h>
/* DESCRIPTION
/* .nf
/*
* Utility library.
*/
#include <vstream.h>
#include <attr.h>
/*
* TLS library.
*/
#include <tls.h>
/*
* External interface.
*/
#define TLS_PROXY_FLAG_ROLE_SERVER (1<<0) /* request server role */
#define TLS_PROXY_FLAG_ROLE_CLIENT (1<<1) /* request client role */
#define TLS_PROXY_FLAG_SEND_CONTEXT (1<<2) /* send TLS context */
#ifdef USE_TLS
/*
* TLS_CLIENT_PARAMS structure. If this changes, update all
* TLS_CLIENT_PARAMS related functions in tls_proxy_client_*.c.
*
* In the serialization these attributes are identified by their configuration
* parameter names.
*
* NOTE: this does not include openssl_path.
*
* TODO: TLS_SERVER_PARAM structure, like TLS_CLIENT_PARAMS plus
* VAR_TLS_SERVER_SNI_MAPS.
*/
typedef struct TLS_CLIENT_PARAMS {
char *tls_cnf_file;
char *tls_cnf_name;
char *tls_high_clist;
char *tls_medium_clist;
char *tls_null_clist;
char *tls_eecdh_auto;
char *tls_eecdh_strong;
char *tls_eecdh_ultra;
char *tls_ffdhe_auto;
char *tls_bug_tweaks;
char *tls_ssl_options;
char *tls_dane_digests;
char *tls_mgr_service;
char *tls_tkt_cipher;
int tls_daemon_rand_bytes;
int tls_append_def_CA;
int tls_bc_pkey_fprint;
int tls_preempt_clist;
int tls_multi_wildcard;
} TLS_CLIENT_PARAMS;
#define TLS_PROXY_PARAMS(params, a1, a2, a3, a4, a5, a6, a7, a8, \
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19) \
(((params)->a1), ((params)->a2), ((params)->a3), \
((params)->a4), ((params)->a5), ((params)->a6), ((params)->a7), \
((params)->a8), ((params)->a9), ((params)->a10), ((params)->a11), \
((params)->a12), ((params)->a13), ((params)->a14), ((params)->a15), \
((params)->a16), ((params)->a17), ((params)->a18), ((params)->a19))
/*
* tls_proxy_client_param_misc.c, tls_proxy_client_param_print.c, and
* tls_proxy_client_param_scan.c.
*/
extern TLS_CLIENT_PARAMS *tls_proxy_client_param_from_config(TLS_CLIENT_PARAMS *);
extern char *tls_proxy_client_param_serialize(ATTR_PRINT_COMMON_FN, VSTRING *, const TLS_CLIENT_PARAMS *);
extern int tls_proxy_client_param_print(ATTR_PRINT_COMMON_FN, VSTREAM *, int, const void *);
extern void tls_proxy_client_param_free(TLS_CLIENT_PARAMS *);
extern int tls_proxy_client_param_scan(ATTR_SCAN_COMMON_FN, VSTREAM *, int, void *);
/*
* Functions that handle TLS_XXX_INIT_PROPS and TLS_XXX_START_PROPS. These
* data structures are defined elsewhere, because they are also used in
* non-proxied requests.
*/
#define tls_proxy_legacy_open(service, flags, peer_stream, peer_addr, \
peer_port, timeout, serverid) \
tls_proxy_open((service), (flags), (peer_stream), (peer_addr), \
(peer_port), (timeout), (timeout), (serverid), \
(void *) 0, (void *) 0, (void *) 0)
extern VSTREAM *tls_proxy_open(const char *, int, VSTREAM *, const char *,
const char *, int, int, const char *,
void *, void *, void *);
#define TLS_PROXY_CLIENT_INIT_PROPS(props, a1, a2, a3, a4, a5, a6, a7, a8, \
a9, a10, a11, a12, a13, a14) \
(((props)->a1), ((props)->a2), ((props)->a3), \
((props)->a4), ((props)->a5), ((props)->a6), ((props)->a7), \
((props)->a8), ((props)->a9), ((props)->a10), ((props)->a11), \
((props)->a12), ((props)->a13), ((props)->a14))
#define TLS_PROXY_CLIENT_START_PROPS(props, a1, a2, a3, a4, a5, a6, a7, a8, \
a9, a10, a11, a12, a13, a14) \
(((props)->a1), ((props)->a2), ((props)->a3), \
((props)->a4), ((props)->a5), ((props)->a6), ((props)->a7), \
((props)->a8), ((props)->a9), ((props)->a10), ((props)->a11), \
((props)->a12), ((props)->a13), ((props)->a14))
extern TLS_SESS_STATE *tls_proxy_context_receive(VSTREAM *);
extern void tls_proxy_context_free(TLS_SESS_STATE *);
extern int tls_proxy_context_print(ATTR_PRINT_COMMON_FN, VSTREAM *, int, const void *);
extern int tls_proxy_context_scan(ATTR_SCAN_COMMON_FN, VSTREAM *, int, void *);
extern int tls_proxy_client_init_print(ATTR_PRINT_COMMON_FN, VSTREAM *, int, const void *);
extern int tls_proxy_client_init_scan(ATTR_SCAN_COMMON_FN, VSTREAM *, int, void *);
extern void tls_proxy_client_init_free(TLS_CLIENT_INIT_PROPS *);
extern char *tls_proxy_client_init_serialize(ATTR_PRINT_COMMON_FN, VSTRING *, const TLS_CLIENT_INIT_PROPS *);
extern int tls_proxy_client_start_print(ATTR_PRINT_COMMON_FN, VSTREAM *, int, const void *);
extern int tls_proxy_client_start_scan(ATTR_SCAN_COMMON_FN, VSTREAM *, int, void *);
extern void tls_proxy_client_start_free(TLS_CLIENT_START_PROPS *);
extern int tls_proxy_server_init_print(ATTR_PRINT_COMMON_FN, VSTREAM *, int, const void *);
extern int tls_proxy_server_init_scan(ATTR_SCAN_COMMON_FN, VSTREAM *, int, void *);
extern void tls_proxy_server_init_free(TLS_SERVER_INIT_PROPS *);
extern int tls_proxy_server_start_print(ATTR_PRINT_COMMON_FN, VSTREAM *, int, const void *);
extern int tls_proxy_server_start_scan(ATTR_SCAN_COMMON_FN, VSTREAM *, int, void *);
extern void tls_proxy_server_start_free(TLS_SERVER_START_PROPS *);
#endif /* USE_TLS */
/*
* TLSPROXY attributes, unconditionally exposed.
*/
#define TLS_ATTR_REMOTE_ENDPT "remote_endpoint" /* name[addr]:port */
#define TLS_ATTR_FLAGS "flags"
#define TLS_ATTR_TIMEOUT "timeout"
#define TLS_ATTR_SERVERID "serverid"
#ifdef USE_TLS
/*
* Misc attributes.
*/
#define TLS_ATTR_COUNT "count"
/*
* TLS_SESS_STATE attributes.
*/
#define TLS_ATTR_PEER_CN "peer_CN"
#define TLS_ATTR_ISSUER_CN "issuer_CN"
#define TLS_ATTR_PEER_CERT_FPT "peer_fingerprint"
#define TLS_ATTR_PEER_PKEY_FPT "peer_pubkey_fingerprint"
#define TLS_ATTR_SEC_LEVEL "level"
#define TLS_ATTR_PEER_STATUS "peer_status"
#define TLS_ATTR_CIPHER_PROTOCOL "cipher_protocol"
#define TLS_ATTR_CIPHER_NAME "cipher_name"
#define TLS_ATTR_CIPHER_USEBITS "cipher_usebits"
#define TLS_ATTR_CIPHER_ALGBITS "cipher_algbits"
#define TLS_ATTR_KEX_NAME "key_exchange"
#define TLS_ATTR_KEX_CURVE "key_exchange_curve"
#define TLS_ATTR_KEX_BITS "key_exchange_bits"
#define TLS_ATTR_CLNT_SIG_NAME "clnt_signature"
#define TLS_ATTR_CLNT_SIG_CURVE "clnt_signature_curve"
#define TLS_ATTR_CLNT_SIG_BITS "clnt_signature_bits"
#define TLS_ATTR_CLNT_SIG_DGST "clnt_signature_digest"
#define TLS_ATTR_SRVR_SIG_NAME "srvr_signature"
#define TLS_ATTR_SRVR_SIG_CURVE "srvr_signature_curve"
#define TLS_ATTR_SRVR_SIG_BITS "srvr_signature_bits"
#define TLS_ATTR_SRVR_SIG_DGST "srvr_signature_digest"
#define TLS_ATTR_NAMADDR "namaddr"
/*
* TLS_SERVER_INIT_PROPS attributes.
*/
#define TLS_ATTR_LOG_PARAM "log_param"
#define TLS_ATTR_LOG_LEVEL "log_level"
#define TLS_ATTR_VERIFYDEPTH "verifydepth"
#define TLS_ATTR_CACHE_TYPE "cache_type"
#define TLS_ATTR_SET_SESSID "set_sessid"
#define TLS_ATTR_CHAIN_FILES "chain_files"
#define TLS_ATTR_CERT_FILE "cert_file"
#define TLS_ATTR_KEY_FILE "key_file"
#define TLS_ATTR_DCERT_FILE "dcert_file"
#define TLS_ATTR_DKEY_FILE "dkey_file"
#define TLS_ATTR_ECCERT_FILE "eccert_file"
#define TLS_ATTR_ECKEY_FILE "eckey_file"
#define TLS_ATTR_CAFILE "CAfile"
#define TLS_ATTR_CAPATH "CApath"
#define TLS_ATTR_PROTOCOLS "protocols"
#define TLS_ATTR_EECDH_GRADE "eecdh_grade"
#define TLS_ATTR_DH1K_PARAM_FILE "dh1024_param_file"
#define TLS_ATTR_DH512_PARAM_FILE "dh512_param_file"
#define TLS_ATTR_ASK_CCERT "ask_ccert"
#define TLS_ATTR_MDALG "mdalg"
/*
* TLS_SERVER_START_PROPS attributes.
*/
#define TLS_ATTR_TIMEOUT "timeout"
#define TLS_ATTR_REQUIRECERT "requirecert"
#define TLS_ATTR_SERVERID "serverid"
#define TLS_ATTR_NAMADDR "namaddr"
#define TLS_ATTR_CIPHER_GRADE "cipher_grade"
#define TLS_ATTR_CIPHER_EXCLUSIONS "cipher_exclusions"
#define TLS_ATTR_MDALG "mdalg"
/*
* TLS_CLIENT_INIT_PROPS attributes.
*/
#define TLS_ATTR_CNF_FILE "config_file"
#define TLS_ATTR_CNF_NAME "config_name"
#define TLS_ATTR_LOG_PARAM "log_param"
#define TLS_ATTR_LOG_LEVEL "log_level"
#define TLS_ATTR_VERIFYDEPTH "verifydepth"
#define TLS_ATTR_CACHE_TYPE "cache_type"
#define TLS_ATTR_CHAIN_FILES "chain_files"
#define TLS_ATTR_CERT_FILE "cert_file"
#define TLS_ATTR_KEY_FILE "key_file"
#define TLS_ATTR_DCERT_FILE "dcert_file"
#define TLS_ATTR_DKEY_FILE "dkey_file"
#define TLS_ATTR_ECCERT_FILE "eccert_file"
#define TLS_ATTR_ECKEY_FILE "eckey_file"
#define TLS_ATTR_CAFILE "CAfile"
#define TLS_ATTR_CAPATH "CApath"
#define TLS_ATTR_MDALG "mdalg"
/*
* TLS_CLIENT_START_PROPS attributes.
*/
#define TLS_ATTR_TIMEOUT "timeout"
#define TLS_ATTR_TLS_LEVEL "tls_level"
#define TLS_ATTR_NEXTHOP "nexthop"
#define TLS_ATTR_HOST "host"
#define TLS_ATTR_NAMADDR "namaddr"
#define TLS_ATTR_SNI "sni"
#define TLS_ATTR_SERVERID "serverid"
#define TLS_ATTR_HELO "helo"
#define TLS_ATTR_PROTOCOLS "protocols"
#define TLS_ATTR_CIPHER_GRADE "cipher_grade"
#define TLS_ATTR_CIPHER_EXCLUSIONS "cipher_exclusions"
#define TLS_ATTR_MATCHARGV "matchargv"
#define TLS_ATTR_MDALG "mdalg"
#define TLS_ATTR_DANE "dane"
/*
* TLS_TLSA attributes.
*/
#define TLS_ATTR_USAGE "usage"
#define TLS_ATTR_SELECTOR "selector"
#define TLS_ATTR_MTYPE "mtype"
#define TLS_ATTR_DATA "data"
/*
* TLS_DANE attributes.
*/
#define TLS_ATTR_DOMAIN "domain"
#endif
/* LICENSE
/* .ad
/* .fi
/* The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/* Wietse Venema
/* IBM T.J. Watson Research
/* P.O. Box 704
/* Yorktown Heights, NY 10598, USA
/*
/* Wietse Venema
/* Google, Inc.
/* 111 8th Avenue
/* New York, NY 10011, USA
/*--*/
#endif
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