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openssl/ssl/ssl_conf.c

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/*
* ! \file ssl/ssl_conf.c \brief SSL configuration functions
*/
/* ====================================================================
* Copyright (c) 2012 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#ifdef REF_CHECK
# include <assert.h>
#endif
#include <stdio.h>
#include "ssl_locl.h"
#include <openssl/conf.h>
#include <openssl/objects.h>
#ifndef OPENSSL_NO_DH
# include <openssl/dh.h>
#endif
/*
* structure holding name tables. This is used for pemitted elements in lists
* such as TLSv1 and single command line switches such as no_tls1
*/
typedef struct {
const char *name;
int namelen;
unsigned int name_flags;
unsigned long option_value;
} ssl_flag_tbl;
/* Sense of name is inverted e.g. "TLSv1" will clear SSL_OP_NO_TLSv1 */
#define SSL_TFLAG_INV 0x1
/* Flags refers to cert_flags not options */
#define SSL_TFLAG_CERT 0x2
/* Option can only be used for clients */
#define SSL_TFLAG_CLIENT SSL_CONF_FLAG_CLIENT
/* Option can only be used for servers */
#define SSL_TFLAG_SERVER SSL_CONF_FLAG_SERVER
#define SSL_TFLAG_BOTH (SSL_TFLAG_CLIENT|SSL_TFLAG_SERVER)
#define SSL_FLAG_TBL(str, flag) \
{str, (int)(sizeof(str) - 1), SSL_TFLAG_BOTH, flag}
#define SSL_FLAG_TBL_SRV(str, flag) \
{str, (int)(sizeof(str) - 1), SSL_TFLAG_SERVER, flag}
#define SSL_FLAG_TBL_CLI(str, flag) \
{str, (int)(sizeof(str) - 1), SSL_TFLAG_CLIENT, flag}
#define SSL_FLAG_TBL_INV(str, flag) \
{str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_BOTH, flag}
#define SSL_FLAG_TBL_SRV_INV(str, flag) \
{str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_SERVER, flag}
#define SSL_FLAG_TBL_CERT(str, flag) \
{str, (int)(sizeof(str) - 1), SSL_TFLAG_CERT|SSL_TFLAG_BOTH, flag}
/*
* Opaque structure containing SSL configuration context.
*/
struct ssl_conf_ctx_st {
/*
* Various flags indicating (among other things) which options we will
* recognise.
*/
unsigned int flags;
/* Prefix and length of commands */
char *prefix;
size_t prefixlen;
/* SSL_CTX or SSL structure to perform operations on */
SSL_CTX *ctx;
SSL *ssl;
/* Pointer to SSL or SSL_CTX options field or NULL if none */
unsigned long *poptions;
/* Pointer to SSL or SSL_CTX cert_flags or NULL if none */
unsigned int *pcert_flags;
/* Current flag table being worked on */
const ssl_flag_tbl *tbl;
/* Size of table */
size_t ntbl;
};
static int ssl_match_option(SSL_CONF_CTX *cctx, const ssl_flag_tbl *tbl,
const char *name, int namelen, int onoff)
{
/* If name not relevant for context skip */
if (!(cctx->flags & tbl->name_flags & SSL_TFLAG_BOTH))
return 0;
if (namelen == -1) {
if (strcmp(tbl->name, name))
return 0;
} else if (tbl->namelen != namelen
|| strncasecmp(tbl->name, name, namelen))
return 0;
if (cctx->poptions) {
if (tbl->name_flags & SSL_TFLAG_INV)
onoff ^= 1;
if (tbl->name_flags & SSL_TFLAG_CERT) {
if (onoff)
*cctx->pcert_flags |= tbl->option_value;
else
*cctx->pcert_flags &= ~tbl->option_value;
} else {
if (onoff)
*cctx->poptions |= tbl->option_value;
else
*cctx->poptions &= ~tbl->option_value;
}
}
return 1;
}
static int ssl_set_option_list(const char *elem, int len, void *usr)
{
SSL_CONF_CTX *cctx = usr;
size_t i;
const ssl_flag_tbl *tbl;
int onoff = 1;
/*
* len == -1 indicates not being called in list context, just for single
* command line switches, so don't allow +, -.
*/
if (elem == NULL)
return 0;
if (len != -1) {
if (*elem == '+') {
elem++;
len--;
onoff = 1;
} else if (*elem == '-') {
elem++;
len--;
onoff = 0;
}
}
for (i = 0, tbl = cctx->tbl; i < cctx->ntbl; i++, tbl++) {
if (ssl_match_option(cctx, tbl, elem, len, onoff))
return 1;
}
return 0;
}
/* Single command line switches with no argument e.g. -no_ssl3 */
static int ctrl_str_option(SSL_CONF_CTX *cctx, const char *cmd)
{
static const ssl_flag_tbl ssl_option_single[] = {
SSL_FLAG_TBL("no_ssl3", SSL_OP_NO_SSLv3),
SSL_FLAG_TBL("no_tls1", SSL_OP_NO_TLSv1),
SSL_FLAG_TBL("no_tls1_1", SSL_OP_NO_TLSv1_1),
SSL_FLAG_TBL("no_tls1_2", SSL_OP_NO_TLSv1_2),
SSL_FLAG_TBL("bugs", SSL_OP_ALL),
SSL_FLAG_TBL("no_comp", SSL_OP_NO_COMPRESSION),
SSL_FLAG_TBL_SRV("ecdh_single", SSL_OP_SINGLE_ECDH_USE),
#ifndef OPENSSL_NO_TLSEXT
SSL_FLAG_TBL("no_ticket", SSL_OP_NO_TICKET),
#endif
SSL_FLAG_TBL_SRV("serverpref", SSL_OP_CIPHER_SERVER_PREFERENCE),
SSL_FLAG_TBL("legacy_renegotiation",
SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION),
SSL_FLAG_TBL_SRV("legacy_server_connect",
SSL_OP_LEGACY_SERVER_CONNECT),
SSL_FLAG_TBL_SRV("no_resumption_on_reneg",
SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION),
SSL_FLAG_TBL_SRV_INV("no_legacy_server_connect",
SSL_OP_LEGACY_SERVER_CONNECT),
SSL_FLAG_TBL_CERT("strict", SSL_CERT_FLAG_TLS_STRICT),
#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
SSL_FLAG_TBL_CERT("debug_broken_protocol",
SSL_CERT_FLAG_BROKEN_PROTOCOL),
#endif
};
cctx->tbl = ssl_option_single;
cctx->ntbl = sizeof(ssl_option_single) / sizeof(ssl_flag_tbl);
return ssl_set_option_list(cmd, -1, cctx);
}
/* Set supported signature algorithms */
static int cmd_SignatureAlgorithms(SSL_CONF_CTX *cctx, const char *value)
{
int rv;
if (cctx->ssl)
rv = SSL_set1_sigalgs_list(cctx->ssl, value);
/* NB: ctx == NULL performs syntax checking only */
else
rv = SSL_CTX_set1_sigalgs_list(cctx->ctx, value);
return rv > 0;
}
/* Set supported client signature algorithms */
static int cmd_ClientSignatureAlgorithms(SSL_CONF_CTX *cctx,
const char *value)
{
int rv;
if (cctx->ssl)
rv = SSL_set1_client_sigalgs_list(cctx->ssl, value);
/* NB: ctx == NULL performs syntax checking only */
else
rv = SSL_CTX_set1_client_sigalgs_list(cctx->ctx, value);
return rv > 0;
}
static int cmd_Curves(SSL_CONF_CTX *cctx, const char *value)
{
int rv;
if (cctx->ssl)
rv = SSL_set1_curves_list(cctx->ssl, value);
/* NB: ctx == NULL performs syntax checking only */
else
rv = SSL_CTX_set1_curves_list(cctx->ctx, value);
return rv > 0;
}
#ifndef OPENSSL_NO_EC
/* ECDH temporary parameters */
static int cmd_ECDHParameters(SSL_CONF_CTX *cctx, const char *value)
{
int onoff = -1, rv = 1;
if (!(cctx->flags & SSL_CONF_FLAG_SERVER))
return -2;
if (cctx->flags & SSL_CONF_FLAG_FILE) {
if (*value == '+') {
onoff = 1;
value++;
}
if (*value == '-') {
onoff = 0;
value++;
}
if (!strcasecmp(value, "automatic")) {
if (onoff == -1)
onoff = 1;
} else if (onoff != -1)
return 0;
} else if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
if (!strcmp(value, "auto"))
onoff = 1;
}
if (onoff != -1) {
if (cctx->ctx)
rv = SSL_CTX_set_ecdh_auto(cctx->ctx, onoff);
else if (cctx->ssl)
rv = SSL_set_ecdh_auto(cctx->ssl, onoff);
} else {
EC_KEY *ecdh;
int nid;
nid = EC_curve_nist2nid(value);
if (nid == NID_undef)
nid = OBJ_sn2nid(value);
if (nid == 0)
return 0;
ecdh = EC_KEY_new_by_curve_name(nid);
if (!ecdh)
return 0;
if (cctx->ctx)
rv = SSL_CTX_set_tmp_ecdh(cctx->ctx, ecdh);
else if (cctx->ssl)
rv = SSL_set_tmp_ecdh(cctx->ssl, ecdh);
EC_KEY_free(ecdh);
}
return rv > 0;
}
#endif
static int cmd_CipherString(SSL_CONF_CTX *cctx, const char *value)
{
int rv = 1;
if (cctx->ctx)
rv = SSL_CTX_set_cipher_list(cctx->ctx, value);
if (cctx->ssl)
rv = SSL_set_cipher_list(cctx->ssl, value);
return rv > 0;
}
static int cmd_Protocol(SSL_CONF_CTX *cctx, const char *value)
{
static const ssl_flag_tbl ssl_protocol_list[] = {
SSL_FLAG_TBL_INV("ALL", SSL_OP_NO_SSL_MASK),
SSL_FLAG_TBL_INV("SSLv2", SSL_OP_NO_SSLv2),
SSL_FLAG_TBL_INV("SSLv3", SSL_OP_NO_SSLv3),
SSL_FLAG_TBL_INV("TLSv1", SSL_OP_NO_TLSv1),
SSL_FLAG_TBL_INV("TLSv1.1", SSL_OP_NO_TLSv1_1),
SSL_FLAG_TBL_INV("TLSv1.2", SSL_OP_NO_TLSv1_2)
};
if (!(cctx->flags & SSL_CONF_FLAG_FILE))
return -2;
cctx->tbl = ssl_protocol_list;
cctx->ntbl = sizeof(ssl_protocol_list) / sizeof(ssl_flag_tbl);
return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
}
static int cmd_Options(SSL_CONF_CTX *cctx, const char *value)
{
static const ssl_flag_tbl ssl_option_list[] = {
SSL_FLAG_TBL_INV("SessionTicket", SSL_OP_NO_TICKET),
SSL_FLAG_TBL_INV("EmptyFragments",
SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS),
SSL_FLAG_TBL("Bugs", SSL_OP_ALL),
SSL_FLAG_TBL_INV("Compression", SSL_OP_NO_COMPRESSION),
SSL_FLAG_TBL_SRV("ServerPreference", SSL_OP_CIPHER_SERVER_PREFERENCE),
SSL_FLAG_TBL_SRV("NoResumptionOnRenegotiation",
SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION),
SSL_FLAG_TBL_SRV("DHSingle", SSL_OP_SINGLE_DH_USE),
SSL_FLAG_TBL_SRV("ECDHSingle", SSL_OP_SINGLE_ECDH_USE),
SSL_FLAG_TBL("UnsafeLegacyRenegotiation",
SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION),
};
if (!(cctx->flags & SSL_CONF_FLAG_FILE))
return -2;
if (value == NULL)
return -3;
cctx->tbl = ssl_option_list;
cctx->ntbl = sizeof(ssl_option_list) / sizeof(ssl_flag_tbl);
return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
}
static int cmd_Certificate(SSL_CONF_CTX *cctx, const char *value)
{
int rv = 1;
if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE))
return -2;
if (cctx->ctx)
rv = SSL_CTX_use_certificate_chain_file(cctx->ctx, value);
if (cctx->ssl)
rv = SSL_use_certificate_file(cctx->ssl, value, SSL_FILETYPE_PEM);
return rv > 0;
}
static int cmd_PrivateKey(SSL_CONF_CTX *cctx, const char *value)
{
int rv = 1;
if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE))
return -2;
if (cctx->ctx)
rv = SSL_CTX_use_PrivateKey_file(cctx->ctx, value, SSL_FILETYPE_PEM);
if (cctx->ssl)
rv = SSL_use_PrivateKey_file(cctx->ssl, value, SSL_FILETYPE_PEM);
return rv > 0;
}
static int cmd_ServerInfoFile(SSL_CONF_CTX *cctx, const char *value)
{
int rv = 1;
if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE))
return -2;
if (!(cctx->flags & SSL_CONF_FLAG_SERVER))
return -2;
if (cctx->ctx)
rv = SSL_CTX_use_serverinfo_file(cctx->ctx, value);
return rv > 0;
}
#ifndef OPENSSL_NO_DH
static int cmd_DHParameters(SSL_CONF_CTX *cctx, const char *value)
{
int rv = 0;
DH *dh = NULL;
BIO *in = NULL;
if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE))
return -2;
if (cctx->ctx || cctx->ssl) {
in = BIO_new(BIO_s_file_internal());
if (!in)
goto end;
if (BIO_read_filename(in, value) <= 0)
goto end;
dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL);
if (!dh)
goto end;
} else
return 1;
if (cctx->ctx)
rv = SSL_CTX_set_tmp_dh(cctx->ctx, dh);
if (cctx->ssl)
rv = SSL_set_tmp_dh(cctx->ssl, dh);
end:
DH_free(dh);
if (in)
BIO_free(in);
return rv > 0;
}
#endif
typedef struct {
int (*cmd) (SSL_CONF_CTX *cctx, const char *value);
const char *str_file;
const char *str_cmdline;
unsigned int value_type;
} ssl_conf_cmd_tbl;
/* Table of supported parameters */
#define SSL_CONF_CMD(name, cmdopt, type) \
{cmd_##name, #name, cmdopt, type}
#define SSL_CONF_CMD_STRING(name, cmdopt) \
SSL_CONF_CMD(name, cmdopt, SSL_CONF_TYPE_STRING)
static const ssl_conf_cmd_tbl ssl_conf_cmds[] = {
SSL_CONF_CMD_STRING(SignatureAlgorithms, "sigalgs"),
SSL_CONF_CMD_STRING(ClientSignatureAlgorithms, "client_sigalgs"),
SSL_CONF_CMD_STRING(Curves, "curves"),
#ifndef OPENSSL_NO_EC
SSL_CONF_CMD_STRING(ECDHParameters, "named_curve"),
#endif
SSL_CONF_CMD_STRING(CipherString, "cipher"),
SSL_CONF_CMD_STRING(Protocol, NULL),
SSL_CONF_CMD_STRING(Options, NULL),
SSL_CONF_CMD(Certificate, "cert", SSL_CONF_TYPE_FILE),
SSL_CONF_CMD(PrivateKey, "key", SSL_CONF_TYPE_FILE),
SSL_CONF_CMD(ServerInfoFile, NULL, SSL_CONF_TYPE_FILE),
#ifndef OPENSSL_NO_DH
SSL_CONF_CMD(DHParameters, "dhparam", SSL_CONF_TYPE_FILE)
#endif
};
static int ssl_conf_cmd_skip_prefix(SSL_CONF_CTX *cctx, const char **pcmd)
{
if (!pcmd || !*pcmd)
return 0;
/* If a prefix is set, check and skip */
if (cctx->prefix) {
if (strlen(*pcmd) <= cctx->prefixlen)
return 0;
if (cctx->flags & SSL_CONF_FLAG_CMDLINE &&
strncmp(*pcmd, cctx->prefix, cctx->prefixlen))
return 0;
if (cctx->flags & SSL_CONF_FLAG_FILE &&
strncasecmp(*pcmd, cctx->prefix, cctx->prefixlen))
return 0;
*pcmd += cctx->prefixlen;
} else if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
if (**pcmd != '-' || !(*pcmd)[1])
return 0;
*pcmd += 1;
}
return 1;
}
static const ssl_conf_cmd_tbl *ssl_conf_cmd_lookup(SSL_CONF_CTX *cctx,
const char *cmd)
{
const ssl_conf_cmd_tbl *t;
size_t i;
if (cmd == NULL)
return NULL;
/* Look for matching parameter name in table */
for (i = 0, t = ssl_conf_cmds;
i < sizeof(ssl_conf_cmds) / sizeof(ssl_conf_cmd_tbl); i++, t++) {
if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
if (t->str_cmdline && !strcmp(t->str_cmdline, cmd))
return t;
}
if (cctx->flags & SSL_CONF_FLAG_FILE) {
if (t->str_file && !strcasecmp(t->str_file, cmd))
return t;
}
}
return NULL;
}
int SSL_CONF_cmd(SSL_CONF_CTX *cctx, const char *cmd, const char *value)
{
const ssl_conf_cmd_tbl *runcmd;
if (cmd == NULL) {
SSLerr(SSL_F_SSL_CONF_CMD, SSL_R_INVALID_NULL_CMD_NAME);
return 0;
}
if (!ssl_conf_cmd_skip_prefix(cctx, &cmd))
return -2;
runcmd = ssl_conf_cmd_lookup(cctx, cmd);
if (runcmd) {
int rv;
if (value == NULL)
return -3;
rv = runcmd->cmd(cctx, value);
if (rv > 0)
return 2;
if (rv == -2)
return -2;
if (cctx->flags & SSL_CONF_FLAG_SHOW_ERRORS) {
SSLerr(SSL_F_SSL_CONF_CMD, SSL_R_BAD_VALUE);
ERR_add_error_data(4, "cmd=", cmd, ", value=", value);
}
return 0;
}
if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
if (ctrl_str_option(cctx, cmd))
return 1;
}
if (cctx->flags & SSL_CONF_FLAG_SHOW_ERRORS) {
SSLerr(SSL_F_SSL_CONF_CMD, SSL_R_UNKNOWN_CMD_NAME);
ERR_add_error_data(2, "cmd=", cmd);
}
return -2;
}
int SSL_CONF_cmd_argv(SSL_CONF_CTX *cctx, int *pargc, char ***pargv)
{
int rv;
const char *arg = NULL, *argn;
if (pargc && *pargc == 0)
return 0;
if (!pargc || *pargc > 0)
arg = **pargv;
if (arg == NULL)
return 0;
if (!pargc || *pargc > 1)
argn = (*pargv)[1];
else
argn = NULL;
cctx->flags &= ~SSL_CONF_FLAG_FILE;
cctx->flags |= SSL_CONF_FLAG_CMDLINE;
rv = SSL_CONF_cmd(cctx, arg, argn);
if (rv > 0) {
/* Success: update pargc, pargv */
(*pargv) += rv;
if (pargc)
(*pargc) -= rv;
return rv;
}
/* Unknown switch: indicate no arguments processed */
if (rv == -2)
return 0;
/* Some error occurred processing command, return fatal error */
if (rv == 0)
return -1;
return rv;
}
int SSL_CONF_cmd_value_type(SSL_CONF_CTX *cctx, const char *cmd)
{
if (ssl_conf_cmd_skip_prefix(cctx, &cmd)) {
const ssl_conf_cmd_tbl *runcmd;
runcmd = ssl_conf_cmd_lookup(cctx, cmd);
if (runcmd)
return runcmd->value_type;
}
return SSL_CONF_TYPE_UNKNOWN;
}
SSL_CONF_CTX *SSL_CONF_CTX_new(void)
{
SSL_CONF_CTX *ret;
ret = OPENSSL_malloc(sizeof(SSL_CONF_CTX));
if (ret) {
ret->flags = 0;
ret->prefix = NULL;
ret->prefixlen = 0;
ret->ssl = NULL;
ret->ctx = NULL;
ret->poptions = NULL;
ret->pcert_flags = NULL;
ret->tbl = NULL;
ret->ntbl = 0;
}
return ret;
}
int SSL_CONF_CTX_finish(SSL_CONF_CTX *cctx)
{
return 1;
}
void SSL_CONF_CTX_free(SSL_CONF_CTX *cctx)
{
if (cctx) {
if (cctx->prefix)
OPENSSL_free(cctx->prefix);
OPENSSL_free(cctx);
}
}
unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX *cctx, unsigned int flags)
{
cctx->flags |= flags;
return cctx->flags;
}
unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX *cctx, unsigned int flags)
{
cctx->flags &= ~flags;
return cctx->flags;
}
int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX *cctx, const char *pre)
{
char *tmp = NULL;
if (pre) {
tmp = BUF_strdup(pre);
if (tmp == NULL)
return 0;
}
if (cctx->prefix)
OPENSSL_free(cctx->prefix);
cctx->prefix = tmp;
if (tmp)
cctx->prefixlen = strlen(tmp);
else
cctx->prefixlen = 0;
return 1;
}
void SSL_CONF_CTX_set_ssl(SSL_CONF_CTX *cctx, SSL *ssl)
{
cctx->ssl = ssl;
cctx->ctx = NULL;
if (ssl) {
cctx->poptions = &ssl->options;
cctx->pcert_flags = &ssl->cert->cert_flags;
} else {
cctx->poptions = NULL;
cctx->pcert_flags = NULL;
}
}
void SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX *cctx, SSL_CTX *ctx)
{
cctx->ctx = ctx;
cctx->ssl = NULL;
if (ctx) {
cctx->poptions = &ctx->options;
cctx->pcert_flags = &ctx->cert->cert_flags;
} else {
cctx->poptions = NULL;
cctx->pcert_flags = NULL;
}
}
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