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/*++
/* NAME
/* tls_proxy_server_scan 3
/* SUMMARY
/* read TLS_SERVER_XXX structures from stream
/* SYNOPSIS
/* #include <tls_proxy.h>
/*
/* int tls_proxy_server_init_scan(scan_fn, stream, flags, ptr)
/* ATTR_SCAN_COMMON_FN scan_fn;
/* VSTREAM *stream;
/* int flags;
/* void *ptr;
/*
/* tls_proxy_server_init_free(init_props)
/* TLS_SERVER_INIT_PROPS *init_props;
/*
/* int tls_proxy_server_start_scan(scan_fn, stream, flags, ptr)
/* ATTR_SCAN_COMMON_FN scan_fn;
/* VSTREAM *stream;
/* int flags;
/* void *ptr;
/*
/* void tls_proxy_server_start_free(start_props)
/* TLS_SERVER_START_PROPS *start_props;
/* DESCRIPTION
/* tls_proxy_server_init_scan() reads a TLS_SERVER_INIT_PROPS
/* structure from the named stream using the specified attribute
/* scan routine. tls_proxy_server_init_scan() is meant to be passed
/* as a call-back function to attr_scan(), as shown below.
/*
/* tls_proxy_server_init_free() destroys a TLS_SERVER_INIT_PROPS
/* structure that was created by tls_proxy_server_init_scan().
/*
/* TLS_SERVER_INIT_PROPS *init_props = 0;
/* ...
/* ... RECV_ATTR_FUNC(tls_proxy_server_init_scan, (void *) &init_props)
/* ...
/* if (init_props)
/* tls_proxy_client_init_free(init_props);
/*
/* tls_proxy_server_start_scan() reads a TLS_SERVER_START_PROPS
/* structure from the named stream using the specified attribute
/* scan routine. tls_proxy_server_start_scan() is meant to be passed
/* as a call-back function to attr_scan(), as shown below.
/*
/* tls_proxy_server_start_free() destroys a TLS_SERVER_START_PROPS
/* structure that was created by tls_proxy_server_start_scan().
/*
/* TLS_SERVER_START_PROPS *start_props = 0;
/* ...
/* ... RECV_ATTR_FUNC(tls_proxy_server_start_scan, (void *) &start_props)
/* ...
/* if (start_props)
/* tls_proxy_server_start_free(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 <attr.h>
/* TLS library. */
#include <tls.h>
#include <tls_proxy.h>
/* tls_proxy_server_init_scan - receive TLS_SERVER_INIT_PROPS from stream */
int tls_proxy_server_init_scan(ATTR_SCAN_COMMON_FN scan_fn, VSTREAM *fp,
int flags, void *ptr)
{
TLS_SERVER_INIT_PROPS *props
= (TLS_SERVER_INIT_PROPS *) mymalloc(sizeof(*props));
int ret;
VSTRING *log_param = vstring_alloc(25);
VSTRING *log_level = vstring_alloc(25);
VSTRING *cache_type = vstring_alloc(25);
VSTRING *chain_files = vstring_alloc(25);
VSTRING *cert_file = vstring_alloc(25);
VSTRING *key_file = vstring_alloc(25);
VSTRING *dcert_file = vstring_alloc(25);
VSTRING *dkey_file = vstring_alloc(25);
VSTRING *eccert_file = vstring_alloc(25);
VSTRING *eckey_file = vstring_alloc(25);
VSTRING *CAfile = vstring_alloc(25);
VSTRING *CApath = vstring_alloc(25);
VSTRING *protocols = vstring_alloc(25);
VSTRING *eecdh_grade = vstring_alloc(25);
VSTRING *dh1024_param_file = vstring_alloc(25);
VSTRING *dh512_param_file = vstring_alloc(25);
VSTRING *mdalg = vstring_alloc(25);
/*
* Note: memset() is not a portable way to initialize non-integer types.
*/
memset(props, 0, sizeof(*props));
ret = scan_fn(fp, flags | ATTR_FLAG_MORE,
RECV_ATTR_STR(TLS_ATTR_LOG_PARAM, log_param),
RECV_ATTR_STR(TLS_ATTR_LOG_LEVEL, log_level),
RECV_ATTR_INT(TLS_ATTR_VERIFYDEPTH, &props->verifydepth),
RECV_ATTR_STR(TLS_ATTR_CACHE_TYPE, cache_type),
RECV_ATTR_INT(TLS_ATTR_SET_SESSID, &props->set_sessid),
RECV_ATTR_STR(TLS_ATTR_CHAIN_FILES, chain_files),
RECV_ATTR_STR(TLS_ATTR_CERT_FILE, cert_file),
RECV_ATTR_STR(TLS_ATTR_KEY_FILE, key_file),
RECV_ATTR_STR(TLS_ATTR_DCERT_FILE, dcert_file),
RECV_ATTR_STR(TLS_ATTR_DKEY_FILE, dkey_file),
RECV_ATTR_STR(TLS_ATTR_ECCERT_FILE, eccert_file),
RECV_ATTR_STR(TLS_ATTR_ECKEY_FILE, eckey_file),
RECV_ATTR_STR(TLS_ATTR_CAFILE, CAfile),
RECV_ATTR_STR(TLS_ATTR_CAPATH, CApath),
RECV_ATTR_STR(TLS_ATTR_PROTOCOLS, protocols),
RECV_ATTR_STR(TLS_ATTR_EECDH_GRADE, eecdh_grade),
RECV_ATTR_STR(TLS_ATTR_DH1K_PARAM_FILE, dh1024_param_file),
RECV_ATTR_STR(TLS_ATTR_DH512_PARAM_FILE, dh512_param_file),
RECV_ATTR_INT(TLS_ATTR_ASK_CCERT, &props->ask_ccert),
RECV_ATTR_STR(TLS_ATTR_MDALG, mdalg),
ATTR_TYPE_END);
/* Always construct a well-formed structure. */
props->log_param = vstring_export(log_param);
props->log_level = vstring_export(log_level);
props->cache_type = vstring_export(cache_type);
props->chain_files = vstring_export(chain_files);
props->cert_file = vstring_export(cert_file);
props->key_file = vstring_export(key_file);
props->dcert_file = vstring_export(dcert_file);
props->dkey_file = vstring_export(dkey_file);
props->eccert_file = vstring_export(eccert_file);
props->eckey_file = vstring_export(eckey_file);
props->CAfile = vstring_export(CAfile);
props->CApath = vstring_export(CApath);
props->protocols = vstring_export(protocols);
props->eecdh_grade = vstring_export(eecdh_grade);
props->dh1024_param_file = vstring_export(dh1024_param_file);
props->dh512_param_file = vstring_export(dh512_param_file);
props->mdalg = vstring_export(mdalg);
ret = (ret == 20 ? 1 : -1);
if (ret != 1) {
tls_proxy_server_init_free(props);
props = 0;
}
*(TLS_SERVER_INIT_PROPS **) ptr = props;
return (ret);
}
/* tls_proxy_server_init_free - destroy TLS_SERVER_INIT_PROPS structure */
void tls_proxy_server_init_free(TLS_SERVER_INIT_PROPS *props)
{
myfree((void *) props->log_param);
myfree((void *) props->log_level);
myfree((void *) props->cache_type);
myfree((void *) props->chain_files);
myfree((void *) props->cert_file);
myfree((void *) props->key_file);
myfree((void *) props->dcert_file);
myfree((void *) props->dkey_file);
myfree((void *) props->eccert_file);
myfree((void *) props->eckey_file);
myfree((void *) props->CAfile);
myfree((void *) props->CApath);
myfree((void *) props->protocols);
myfree((void *) props->eecdh_grade);
myfree((void *) props->dh1024_param_file);
myfree((void *) props->dh512_param_file);
myfree((void *) props->mdalg);
myfree((void *) props);
}
/* tls_proxy_server_start_scan - receive TLS_SERVER_START_PROPS from stream */
int tls_proxy_server_start_scan(ATTR_SCAN_COMMON_FN scan_fn, VSTREAM *fp,
int flags, void *ptr)
{
TLS_SERVER_START_PROPS *props
= (TLS_SERVER_START_PROPS *) mymalloc(sizeof(*props));
int ret;
VSTRING *serverid = vstring_alloc(25);
VSTRING *namaddr = vstring_alloc(25);
VSTRING *cipher_grade = vstring_alloc(25);
VSTRING *cipher_exclusions = vstring_alloc(25);
VSTRING *mdalg = vstring_alloc(25);
/*
* Note: memset() is not a portable way to initialize non-integer types.
*/
memset(props, 0, sizeof(*props));
props->ctx = 0;
props->stream = 0;
/* XXX Caller sets fd. */
ret = scan_fn(fp, flags | ATTR_FLAG_MORE,
RECV_ATTR_INT(TLS_ATTR_TIMEOUT, &props->timeout),
RECV_ATTR_INT(TLS_ATTR_REQUIRECERT, &props->requirecert),
RECV_ATTR_STR(TLS_ATTR_SERVERID, serverid),
RECV_ATTR_STR(TLS_ATTR_NAMADDR, namaddr),
RECV_ATTR_STR(TLS_ATTR_CIPHER_GRADE, cipher_grade),
RECV_ATTR_STR(TLS_ATTR_CIPHER_EXCLUSIONS,
cipher_exclusions),
RECV_ATTR_STR(TLS_ATTR_MDALG, mdalg),
ATTR_TYPE_END);
props->serverid = vstring_export(serverid);
props->namaddr = vstring_export(namaddr);
props->cipher_grade = vstring_export(cipher_grade);
props->cipher_exclusions = vstring_export(cipher_exclusions);
props->mdalg = vstring_export(mdalg);
ret = (ret == 7 ? 1 : -1);
if (ret != 1) {
tls_proxy_server_start_free(props);
props = 0;
}
*(TLS_SERVER_START_PROPS **) ptr = props;
return (ret);
}
/* tls_proxy_server_start_free - destroy TLS_SERVER_START_PROPS structure */
void tls_proxy_server_start_free(TLS_SERVER_START_PROPS *props)
{
/* XXX Caller closes fd. */
myfree((void *) props->serverid);
myfree((void *) props->namaddr);
myfree((void *) props->cipher_grade);
myfree((void *) props->cipher_exclusions);
myfree((void *) props->mdalg);
myfree((void *) props);
}
#endif
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