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|
/*++
/* NAME
/* tls_proxy_client_print 3
/* SUMMARY
/* write TLS_CLIENT_XXX structures to stream
/* SYNOPSIS
/* #include <tls_proxy.h>
/*
/* int tls_proxy_client_param_print(print_fn, stream, flags, ptr)
/* ATTR_PRINT_MASTER_FN print_fn;
/* VSTREAM *stream;
/* int flags;
/* void *ptr;
/*
/* int tls_proxy_client_init_print(print_fn, stream, flags, ptr)
/* ATTR_PRINT_MASTER_FN print_fn;
/* VSTREAM *stream;
/* int flags;
/* void *ptr;
/*
/* int tls_proxy_client_start_print(print_fn, stream, flags, ptr)
/* ATTR_PRINT_MASTER_FN print_fn;
/* VSTREAM *stream;
/* int flags;
/* void *ptr;
/* DESCRIPTION
/* tls_proxy_client_param_print() writes a TLS_CLIENT_PARAMS structure to
/* the named stream using the specified attribute print routine.
/* tls_proxy_client_param_print() is meant to be passed as a call-back to
/* attr_print(), thusly:
/*
/* SEND_ATTR_FUNC(tls_proxy_client_param_print, (void *) param), ...
/*
/* tls_proxy_client_init_print() writes a full TLS_CLIENT_INIT_PROPS
/* structure to the named stream using the specified attribute
/* print routine. tls_proxy_client_init_print() is meant to
/* be passed as a call-back to attr_print(), thusly:
/*
/* SEND_ATTR_FUNC(tls_proxy_client_init_print, (void *) init_props), ...
/*
/* tls_proxy_client_start_print() writes a TLS_CLIENT_START_PROPS
/* structure, without stream or file descriptor members, to
/* the named stream using the specified attribute print routine.
/* tls_proxy_client_start_print() is meant to be passed as a
/* call-back to attr_print(), thusly:
/*
/* SEND_ATTR_FUNC(tls_proxy_client_start_print, (void *) start_props), ...
/* DIAGNOSTICS
/* Fatal: out of memory.
/* LICENSE
/* .ad
/* .fi
/* The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/* Wietse Venema
/* Google, Inc.
/* 111 8th Avenue
/* New York, NY 10011, USA
/*--*/
#ifdef USE_TLS
/* System library. */
#include <sys_defs.h>
/* Utility library */
#include <argv_attr.h>
#include <attr.h>
#include <msg.h>
/* Global library. */
#include <mail_params.h>
/* TLS library. */
#include <tls.h>
#include <tls_proxy.h>
#define STR(x) vstring_str(x)
#define LEN(x) VSTRING_LEN(x)
/* tls_proxy_client_param_print - send TLS_CLIENT_PARAMS over stream */
int tls_proxy_client_param_print(ATTR_PRINT_MASTER_FN print_fn, VSTREAM *fp,
int flags, void *ptr)
{
TLS_CLIENT_PARAMS *params = (TLS_CLIENT_PARAMS *) ptr;
int ret;
if (msg_verbose)
msg_info("begin tls_proxy_client_param_print");
ret = print_fn(fp, flags | ATTR_FLAG_MORE,
SEND_ATTR_STR(TLS_ATTR_CNF_FILE, params->tls_cnf_file),
SEND_ATTR_STR(TLS_ATTR_CNF_NAME, params->tls_cnf_name),
SEND_ATTR_STR(VAR_TLS_HIGH_CLIST, params->tls_high_clist),
SEND_ATTR_STR(VAR_TLS_MEDIUM_CLIST,
params->tls_medium_clist),
SEND_ATTR_STR(VAR_TLS_LOW_CLIST, params->tls_low_clist),
SEND_ATTR_STR(VAR_TLS_EXPORT_CLIST,
params->tls_export_clist),
SEND_ATTR_STR(VAR_TLS_NULL_CLIST, params->tls_null_clist),
SEND_ATTR_STR(VAR_TLS_EECDH_AUTO, params->tls_eecdh_auto),
SEND_ATTR_STR(VAR_TLS_EECDH_STRONG,
params->tls_eecdh_strong),
SEND_ATTR_STR(VAR_TLS_EECDH_ULTRA,
params->tls_eecdh_ultra),
SEND_ATTR_STR(VAR_TLS_BUG_TWEAKS, params->tls_bug_tweaks),
SEND_ATTR_STR(VAR_TLS_SSL_OPTIONS,
params->tls_ssl_options),
SEND_ATTR_STR(VAR_TLS_DANE_DIGESTS,
params->tls_dane_digests),
SEND_ATTR_STR(VAR_TLS_MGR_SERVICE,
params->tls_mgr_service),
SEND_ATTR_STR(VAR_TLS_TKT_CIPHER, params->tls_tkt_cipher),
SEND_ATTR_INT(VAR_TLS_DAEMON_RAND_BYTES,
params->tls_daemon_rand_bytes),
SEND_ATTR_INT(VAR_TLS_APPEND_DEF_CA,
params->tls_append_def_CA),
SEND_ATTR_INT(VAR_TLS_BC_PKEY_FPRINT,
params->tls_bc_pkey_fprint),
SEND_ATTR_INT(VAR_TLS_PREEMPT_CLIST,
params->tls_preempt_clist),
SEND_ATTR_INT(VAR_TLS_MULTI_WILDCARD,
params->tls_multi_wildcard),
ATTR_TYPE_END);
/* Do not flush the stream. */
if (msg_verbose)
msg_info("tls_proxy_client_param_print ret=%d", ret);
return (ret);
}
/* tls_proxy_client_init_print - send TLS_CLIENT_INIT_PROPS over stream */
int tls_proxy_client_init_print(ATTR_PRINT_MASTER_FN print_fn, VSTREAM *fp,
int flags, void *ptr)
{
TLS_CLIENT_INIT_PROPS *props = (TLS_CLIENT_INIT_PROPS *) ptr;
int ret;
if (msg_verbose)
msg_info("begin tls_proxy_client_init_print");
#define STRING_OR_EMPTY(s) ((s) ? (s) : "")
ret = print_fn(fp, flags | ATTR_FLAG_MORE,
SEND_ATTR_STR(TLS_ATTR_LOG_PARAM,
STRING_OR_EMPTY(props->log_param)),
SEND_ATTR_STR(TLS_ATTR_LOG_LEVEL,
STRING_OR_EMPTY(props->log_level)),
SEND_ATTR_INT(TLS_ATTR_VERIFYDEPTH, props->verifydepth),
SEND_ATTR_STR(TLS_ATTR_CACHE_TYPE,
STRING_OR_EMPTY(props->cache_type)),
SEND_ATTR_STR(TLS_ATTR_CHAIN_FILES,
STRING_OR_EMPTY(props->chain_files)),
SEND_ATTR_STR(TLS_ATTR_CERT_FILE,
STRING_OR_EMPTY(props->cert_file)),
SEND_ATTR_STR(TLS_ATTR_KEY_FILE,
STRING_OR_EMPTY(props->key_file)),
SEND_ATTR_STR(TLS_ATTR_DCERT_FILE,
STRING_OR_EMPTY(props->dcert_file)),
SEND_ATTR_STR(TLS_ATTR_DKEY_FILE,
STRING_OR_EMPTY(props->dkey_file)),
SEND_ATTR_STR(TLS_ATTR_ECCERT_FILE,
STRING_OR_EMPTY(props->eccert_file)),
SEND_ATTR_STR(TLS_ATTR_ECKEY_FILE,
STRING_OR_EMPTY(props->eckey_file)),
SEND_ATTR_STR(TLS_ATTR_CAFILE,
STRING_OR_EMPTY(props->CAfile)),
SEND_ATTR_STR(TLS_ATTR_CAPATH,
STRING_OR_EMPTY(props->CApath)),
SEND_ATTR_STR(TLS_ATTR_MDALG,
STRING_OR_EMPTY(props->mdalg)),
ATTR_TYPE_END);
/* Do not flush the stream. */
if (msg_verbose)
msg_info("tls_proxy_client_init_print ret=%d", ret);
return (ret);
}
/* tls_proxy_client_certs_print - send x509 certificates over stream */
static int tls_proxy_client_certs_print(ATTR_PRINT_MASTER_FN print_fn,
VSTREAM *fp, int flags, void *ptr)
{
TLS_CERTS *tls_certs = (TLS_CERTS *) ptr;
TLS_CERTS *tp;
int count;
int ret;
for (tp = tls_certs, count = 0; tp != 0; tp = tp->next, count++)
/* void */ ;
if (msg_verbose)
msg_info("tls_proxy_client_certs_print count=%d", count);
ret = print_fn(fp, flags | ATTR_FLAG_MORE,
SEND_ATTR_INT(TLS_ATTR_COUNT, count),
ATTR_TYPE_END);
if (ret == 0 && count > 0) {
VSTRING *buf = vstring_alloc(100);
int n;
for (tp = tls_certs, n = 0; ret == 0 && n < count; tp = tp->next, n++) {
size_t len = i2d_X509(tp->cert, (unsigned char **) 0);
unsigned char *bp;
VSTRING_RESET(buf);
VSTRING_SPACE(buf, len);
bp = (unsigned char *) STR(buf);
i2d_X509(tp->cert, &bp);
if ((char *) bp - STR(buf) != len)
msg_panic("i2d_X509 failed to encode certificate");
vstring_set_payload_size(buf, len);
ret = print_fn(fp, flags | ATTR_FLAG_MORE,
SEND_ATTR_DATA(TLS_ATTR_CERT, LEN(buf), STR(buf)),
ATTR_TYPE_END);
}
vstring_free(buf);
}
/* Do not flush the stream. */
if (msg_verbose)
msg_info("tls_proxy_client_certs_print ret=%d", count);
return (ret);
}
/* tls_proxy_client_pkeys_print - send public keys over stream */
static int tls_proxy_client_pkeys_print(ATTR_PRINT_MASTER_FN print_fn,
VSTREAM *fp, int flags, void *ptr)
{
TLS_PKEYS *tls_pkeys = (TLS_PKEYS *) ptr;
TLS_PKEYS *tp;
int count;
int ret;
for (tp = tls_pkeys, count = 0; tp != 0; tp = tp->next, count++)
/* void */ ;
if (msg_verbose)
msg_info("tls_proxy_client_pkeys_print count=%d", count);
ret = print_fn(fp, flags | ATTR_FLAG_MORE,
SEND_ATTR_INT(TLS_ATTR_COUNT, count),
ATTR_TYPE_END);
if (ret == 0 && count > 0) {
VSTRING *buf = vstring_alloc(100);
int n;
for (tp = tls_pkeys, n = 0; ret == 0 && n < count; tp = tp->next, n++) {
size_t len = i2d_PUBKEY(tp->pkey, (unsigned char **) 0);
unsigned char *bp;
VSTRING_RESET(buf);
VSTRING_SPACE(buf, len);
bp = (unsigned char *) STR(buf);
i2d_PUBKEY(tp->pkey, &bp);
if ((char *) bp - STR(buf) != len)
msg_panic("i2d_PUBKEY failed to encode public key");
vstring_set_payload_size(buf, len);
ret = print_fn(fp, flags | ATTR_FLAG_MORE,
SEND_ATTR_DATA(TLS_ATTR_PKEY, LEN(buf), STR(buf)),
ATTR_TYPE_END);
}
vstring_free(buf);
}
/* Do not flush the stream. */
if (msg_verbose)
msg_info("tls_proxy_client_pkeys_print ret=%d", count);
return (ret);
}
/* tls_proxy_client_tlsa_print - send TLS_TLSA over stream */
static int tls_proxy_client_tlsa_print(ATTR_PRINT_MASTER_FN print_fn,
VSTREAM *fp, int flags, void *ptr)
{
TLS_TLSA *tls_tlsa = (TLS_TLSA *) ptr;
TLS_TLSA *tp;
int count;
int ret;
for (tp = tls_tlsa, count = 0; tp != 0; tp = tp->next, count++)
/* void */ ;
if (msg_verbose)
msg_info("tls_proxy_client_tlsa_print count=%d", count);
ret = print_fn(fp, flags | ATTR_FLAG_MORE,
SEND_ATTR_INT(TLS_ATTR_COUNT, count),
ATTR_TYPE_END);
if (ret == 0 && count > 0) {
int n;
for (tp = tls_tlsa, n = 0; ret == 0 && n < count; tp = tp->next, n++) {
ret = print_fn(fp, flags | ATTR_FLAG_MORE,
SEND_ATTR_STR(TLS_ATTR_MDALG, tp->mdalg),
SEND_ATTR_FUNC(argv_attr_print,
(void *) tp->certs),
SEND_ATTR_FUNC(argv_attr_print,
(void *) tp->pkeys),
ATTR_TYPE_END);
}
}
/* Do not flush the stream. */
if (msg_verbose)
msg_info("tls_proxy_client_tlsa_print ret=%d", count);
return (ret);
}
/* tls_proxy_client_dane_print - send TLS_DANE over stream */
static int tls_proxy_client_dane_print(ATTR_PRINT_MASTER_FN print_fn,
VSTREAM *fp, int flags, void *ptr)
{
TLS_DANE *dane = (TLS_DANE *) ptr;
int ret;
ret = print_fn(fp, flags | ATTR_FLAG_MORE,
SEND_ATTR_INT(TLS_ATTR_DANE, dane != 0),
ATTR_TYPE_END);
if (msg_verbose)
msg_info("tls_proxy_client_dane_print dane=%d", dane != 0);
if (ret == 0 && dane != 0) {
ret = print_fn(fp, flags | ATTR_FLAG_MORE,
SEND_ATTR_FUNC(tls_proxy_client_tlsa_print,
(void *) dane->ta),
SEND_ATTR_FUNC(tls_proxy_client_tlsa_print,
(void *) dane->ee),
SEND_ATTR_FUNC(tls_proxy_client_certs_print,
(void *) dane->certs),
SEND_ATTR_FUNC(tls_proxy_client_pkeys_print,
(void *) dane->pkeys),
SEND_ATTR_STR(TLS_ATTR_DOMAIN,
STRING_OR_EMPTY(dane->base_domain)),
SEND_ATTR_INT(TLS_ATTR_FLAGS, dane->flags),
SEND_ATTR_LONG(TLS_ATTR_EXP, dane->expires),
ATTR_TYPE_END);
}
/* Do not flush the stream. */
if (msg_verbose)
msg_info("tls_proxy_client_dane_print ret=%d", ret);
return (ret);
}
/* tls_proxy_client_start_print - send TLS_CLIENT_START_PROPS over stream */
int tls_proxy_client_start_print(ATTR_PRINT_MASTER_FN print_fn,
VSTREAM *fp, int flags, void *ptr)
{
TLS_CLIENT_START_PROPS *props = (TLS_CLIENT_START_PROPS *) ptr;
int ret;
if (msg_verbose)
msg_info("begin tls_proxy_client_start_print");
#define STRING_OR_EMPTY(s) ((s) ? (s) : "")
ret = print_fn(fp, flags | ATTR_FLAG_MORE,
SEND_ATTR_INT(TLS_ATTR_TIMEOUT, props->timeout),
SEND_ATTR_INT(TLS_ATTR_TLS_LEVEL, props->tls_level),
SEND_ATTR_STR(TLS_ATTR_NEXTHOP,
STRING_OR_EMPTY(props->nexthop)),
SEND_ATTR_STR(TLS_ATTR_HOST,
STRING_OR_EMPTY(props->host)),
SEND_ATTR_STR(TLS_ATTR_NAMADDR,
STRING_OR_EMPTY(props->namaddr)),
SEND_ATTR_STR(TLS_ATTR_SNI,
STRING_OR_EMPTY(props->sni)),
SEND_ATTR_STR(TLS_ATTR_SERVERID,
STRING_OR_EMPTY(props->serverid)),
SEND_ATTR_STR(TLS_ATTR_HELO,
STRING_OR_EMPTY(props->helo)),
SEND_ATTR_STR(TLS_ATTR_PROTOCOLS,
STRING_OR_EMPTY(props->protocols)),
SEND_ATTR_STR(TLS_ATTR_CIPHER_GRADE,
STRING_OR_EMPTY(props->cipher_grade)),
SEND_ATTR_STR(TLS_ATTR_CIPHER_EXCLUSIONS,
STRING_OR_EMPTY(props->cipher_exclusions)),
SEND_ATTR_FUNC(argv_attr_print,
(void *) props->matchargv),
SEND_ATTR_STR(TLS_ATTR_MDALG,
STRING_OR_EMPTY(props->mdalg)),
SEND_ATTR_FUNC(tls_proxy_client_dane_print,
(void *) props->dane),
ATTR_TYPE_END);
/* Do not flush the stream. */
if (msg_verbose)
msg_info("tls_proxy_client_start_print ret=%d", ret);
return (ret);
}
#endif
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