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reactos/dll/win32/schannel/schannel_mbedtls.c
Amine Khaldi b5f897f219 [SCHANNEL] Sync with Wine Staging 3.3. CORE-14434
2018-03-23 12:20:45 +01:00

725 lines
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/*
* Lightweight mbedTLS-based implementation of the schannel (SSL/TLS) provider.
*
* Copyright 2015 Peter Hater
* Copyright 2015 Ismael Ferreras Morezuelas <swyterzone+ros@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#ifdef __REACTOS__
#include "precomp.h"
#else
#include <stdarg.h>
#include <errno.h>
#include "windef.h"
#include "winbase.h"
#include "sspi.h"
#include "schannel.h"
#include "wine/debug.h"
#include "wine/library.h"
#endif
WINE_DEFAULT_DEBUG_CHANNEL(schannel);
#if defined(SONAME_LIBMBEDTLS) && !defined(HAVE_SECURITY_SECURITY_H) && !defined(SONAME_LIBGNUTLS)
#include <mbedtls/ssl.h>
#include <mbedtls/net_sockets.h>
#include <mbedtls/entropy.h>
#include <mbedtls/ctr_drbg.h>
#include <mbedtls/md_internal.h>
#include <mbedtls/ssl_internal.h>
#define ROS_SCHAN_IS_BLOCKING(read_len) ((read_len & 0xFFF00000) == 0xCCC00000)
#define ROS_SCHAN_IS_BLOCKING_MARSHALL(read_len) ((read_len & 0x000FFFFF) | 0xCCC00000)
#define ROS_SCHAN_IS_BLOCKING_RETRIEVE(read_len) (read_len & 0x000FFFFF)
#ifndef __REACTOS__
/* WINE defines the back-end glue in here */
#include "secur32_priv.h"
/* in ReactOS we use schannel instead of secur32 */
WINE_DEFAULT_DEBUG_CHANNEL(secur32);
/* WINE prefers to keep it optional, disable this to link explicitly */
#include "schannel_mbedtls_lazyload.h"
/* WINE does not define this standard win32 macro for some reason */
#ifndef _countof
#define _countof(a) (sizeof(a)/sizeof(*(a)))
#endif
#endif
typedef struct
{
mbedtls_ssl_context ssl;
mbedtls_ssl_config conf;
mbedtls_entropy_context entropy;
mbedtls_ctr_drbg_context ctr_drbg;
struct schan_transport *transport;
} MBEDTLS_SESSION, *PMBEDTLS_SESSION;
/* custom `net_recv` callback adapter, mbedTLS uses it in mbedtls_ssl_read for
pulling data from the underlying win32 net stack */
static int schan_pull_adapter(void *session, unsigned char *buff, size_t buff_len)
{
MBEDTLS_SESSION *s = session;
size_t requested = buff_len;
int status;
TRACE("MBEDTLS schan_pull_adapter: (%p/%p, %p, %u)\n", s, s->transport, buff, buff_len);
status = schan_pull(s->transport, buff, &buff_len);
TRACE("MBEDTLS schan_pull_adapter: (%p/%p, %p, %u) status: %#x\n", s, s->transport, buff, buff_len, status);
if (status == NO_ERROR)
{
/* great, no more data left */
if (buff_len == 0)
{
TRACE("Connection closed\n");
return 0;
}
/* there's still some bytes that need pulling */
else if (buff_len < requested)
{
TRACE("Pulled %u bytes before would block\n", buff_len);
return ROS_SCHAN_IS_BLOCKING_MARSHALL(buff_len);
}
else
{
TRACE("Pulled %u bytes\n", buff_len);
return buff_len;
}
}
else if (status == EAGAIN)
{
TRACE("Would block before being able to pull anything, passing buff_len=%u\n", buff_len);
return ROS_SCHAN_IS_BLOCKING_MARSHALL(buff_len);
}
else
{
ERR("Unknown status code from schan_pull: %d\n", status);
return MBEDTLS_ERR_NET_RECV_FAILED;
}
/* this should be unreachable */
return MBEDTLS_ERR_NET_CONNECT_FAILED;
}
/* custom `net_send` callback adapter, mbedTLS uses it in mbedtls_ssl_write for
pushing data to the underlying win32 net stack */
static int schan_push_adapter(void *session, const unsigned char *buff, size_t buff_len)
{
MBEDTLS_SESSION *s = session;
int status;
TRACE("MBEDTLS schan_push_adapter: (%p/%p, %p, %u)\n", s, s->transport, buff, buff_len);
status = schan_push(s->transport, buff, &buff_len);
TRACE("MBEDTLS schan_push_adapter: (%p/%p, %p, %u) status: %#x\n", s, s->transport, buff, buff_len, status);
if (status == NO_ERROR)
{
TRACE("Pushed %u bytes\n", buff_len);
return buff_len;
}
else if (status == EAGAIN)
{
TRACE("Would block before being able to push anything. passing %u\n", buff_len);
return ROS_SCHAN_IS_BLOCKING_MARSHALL(buff_len);
}
else
{
ERR("Unknown status code from schan_push: %d\n", status);
return MBEDTLS_ERR_NET_SEND_FAILED;
}
/* this should be unreachable */
return MBEDTLS_ERR_NET_CONNECT_FAILED;
}
DWORD schan_imp_enabled_protocols(void)
{
/* NOTE: No support for SSL 2.0 */
TRACE("MBEDTLS schan_imp_enabled_protocols()\n");
return 0
#ifdef MBEDTLS_SSL_PROTO_SSL3
| SP_PROT_SSL3_CLIENT | SP_PROT_SSL3_SERVER
#endif
#ifdef MBEDTLS_SSL_PROTO_TLS1
| SP_PROT_TLS1_0_CLIENT | SP_PROT_TLS1_0_SERVER
#endif
#ifdef MBEDTLS_SSL_PROTO_TLS1_1
| SP_PROT_TLS1_1_CLIENT | SP_PROT_TLS1_1_SERVER
#endif
#ifdef MBEDTLS_SSL_PROTO_TLS1_2
| SP_PROT_TLS1_2_CLIENT | SP_PROT_TLS1_2_SERVER
#endif
;
}
static void schan_imp_debug(void *ctx, int level, const char *file, int line, const char *str)
{
WARN("MBEDTLS schan_imp_debug: %s:%04d: %s\n", file, line, str);
}
BOOL schan_imp_create_session(schan_imp_session *session, schan_credentials *cred)
{
MBEDTLS_SESSION *s = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(MBEDTLS_SESSION));
WARN("MBEDTLS schan_imp_create_session: %p %p %p\n", session, *session, cred);
if (!(*session = (schan_imp_session)s))
{
ERR("Not enough memory to create session\n");
return FALSE;
}
TRACE("MBEDTLS init entropy\n");
mbedtls_entropy_init(&s->entropy);
TRACE("MBEDTLS init random - change static entropy private data\n");
mbedtls_ctr_drbg_init(&s->ctr_drbg);
mbedtls_ctr_drbg_seed(&s->ctr_drbg, mbedtls_entropy_func, &s->entropy, NULL, 0);
WARN("MBEDTLS init ssl\n");
mbedtls_ssl_init(&s->ssl);
WARN("MBEDTLS init conf\n");
mbedtls_ssl_config_init(&s->conf);
mbedtls_ssl_config_defaults(&s->conf, MBEDTLS_SSL_IS_CLIENT,
MBEDTLS_SSL_TRANSPORT_STREAM, MBEDTLS_SSL_PRESET_DEFAULT);
TRACE("MBEDTLS set BIO callbacks\n");
mbedtls_ssl_set_bio(&s->ssl, s, schan_push_adapter, schan_pull_adapter, NULL);
TRACE("MBEDTLS set endpoint to %s\n", (cred->credential_use & SECPKG_CRED_INBOUND) ? "server" : "client");
mbedtls_ssl_conf_endpoint(&s->conf, (cred->credential_use & SECPKG_CRED_INBOUND) ? MBEDTLS_SSL_IS_SERVER :
MBEDTLS_SSL_IS_CLIENT);
TRACE("MBEDTLS set authmode\n");
mbedtls_ssl_conf_authmode(&s->conf, MBEDTLS_SSL_VERIFY_NONE);
TRACE("MBEDTLS set rng\n");
mbedtls_ssl_conf_rng(&s->conf, mbedtls_ctr_drbg_random, &s->ctr_drbg);
TRACE("MBEDTLS set dbg\n");
mbedtls_ssl_conf_dbg(&s->conf, schan_imp_debug, stdout);
TRACE("MBEDTLS setup\n");
mbedtls_ssl_setup(&s->ssl, &s->conf);
TRACE("MBEDTLS schan_imp_create_session END!\n");
return TRUE;
}
void schan_imp_dispose_session(schan_imp_session session)
{
MBEDTLS_SESSION *s = (MBEDTLS_SESSION *)session;
WARN("MBEDTLS schan_imp_dispose_session: %p\n", session);
/* tell the other peer (a server) that we are going away */
//ssl_close_notify(&s->ssl);
mbedtls_ssl_free(&s->ssl);
mbedtls_ctr_drbg_free(&s->ctr_drbg);
mbedtls_entropy_free(&s->entropy);
mbedtls_ssl_config_free(&s->conf);
/* safely overwrite the freed context with zeroes */
HeapFree(GetProcessHeap(), HEAP_ZERO_MEMORY, s);
}
void schan_imp_set_session_transport(schan_imp_session session,
struct schan_transport *t)
{
MBEDTLS_SESSION *s = (MBEDTLS_SESSION *)session;
TRACE("MBEDTLS schan_imp_set_session_transport: %p %p\n", session, t);
s->transport = t;
}
void schan_imp_set_session_target(schan_imp_session session, const char *target)
{
MBEDTLS_SESSION *s = (MBEDTLS_SESSION *)session;
TRACE("MBEDTLS schan_imp_set_session_target: sess: %p hostname: %s\n", session, target);
/* FIXME: WINE tests do not pass when we set the hostname because in the test cases
* contacting 'www.winehq.org' the hostname is defined as 'localhost' so the server
* sends a non-fatal alert which preemptively forces mbedTLS to close connection. */
mbedtls_ssl_set_hostname(&s->ssl, target);
}
SECURITY_STATUS schan_imp_handshake(schan_imp_session session)
{
MBEDTLS_SESSION *s = (MBEDTLS_SESSION *)session;
int err = mbedtls_ssl_handshake(&s->ssl);
TRACE("MBEDTLS schan_imp_handshake: %p err: %#x \n", session, err);
if (ROS_SCHAN_IS_BLOCKING(err))
{
TRACE("Received ERR_NET_WANT_READ/WRITE... let's try again!\n");
return SEC_I_CONTINUE_NEEDED;
}
else if (err == MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE)
{
ERR("schan_imp_handshake: SSL Feature unavailable...\n");
return SEC_E_UNSUPPORTED_FUNCTION;
}
else if (err != 0)
{
ERR("schan_imp_handshake: Oops! mbedtls_ssl_handshake returned the following error code: -%#x...\n", -err);
return SEC_E_INTERNAL_ERROR;
}
WARN("schan_imp_handshake: Handshake completed!\n");
WARN("schan_imp_handshake: Protocol is %s, Cipher suite is %s\n", mbedtls_ssl_get_version(&s->ssl),
mbedtls_ssl_get_ciphersuite(&s->ssl));
return SEC_E_OK;
}
static unsigned int schannel_get_cipher_key_size(int ciphersuite_id)
{
const mbedtls_ssl_ciphersuite_t *ssl_cipher_suite = mbedtls_ssl_ciphersuite_from_id(ciphersuite_id);
const mbedtls_cipher_info_t *cipher_info = mbedtls_cipher_info_from_type(ssl_cipher_suite->cipher);
unsigned int key_bitlen = cipher_info->key_bitlen;
TRACE("MBEDTLS schannel_get_cipher_key_size: Unknown cipher %#x, returning %u\n", ciphersuite_id, key_bitlen);
return key_bitlen;
}
static unsigned int schannel_get_mac_key_size(int ciphersuite_id)
{
const mbedtls_ssl_ciphersuite_t *ssl_cipher_suite = mbedtls_ssl_ciphersuite_from_id(ciphersuite_id);
const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type(ssl_cipher_suite->mac);
int md_size = md_info->size * CHAR_BIT; /* return the size in bits, as the secur32:schannel winetest shows */
TRACE("MBEDTLS schannel_get_mac_key_size: returning %i\n", md_size);
return md_size;
}
static unsigned int schannel_get_kx_key_size(const mbedtls_ssl_context *ssl, const mbedtls_ssl_config *conf, int ciphersuite_id)
{
const mbedtls_ssl_ciphersuite_t *ssl_ciphersuite = mbedtls_ssl_ciphersuite_from_id(ciphersuite_id);
/* if we are the server take ca_chain, if we are the client take the proper x509 peer certificate */
const mbedtls_x509_crt *server_cert = (conf->endpoint == MBEDTLS_SSL_IS_SERVER) ? conf->ca_chain : mbedtls_ssl_get_peer_cert(ssl);
if (ssl_ciphersuite->key_exchange != MBEDTLS_KEY_EXCHANGE_NONE)
return mbedtls_pk_get_len(&(server_cert->pk));
TRACE("MBEDTLS schannel_get_kx_key_size: Unknown kx %#x, returning 0\n", ssl_ciphersuite->key_exchange);
return 0;
}
static DWORD schannel_get_protocol(const mbedtls_ssl_context *ssl, const mbedtls_ssl_config *conf)
{
/* FIXME: currently schannel only implements client connections, but
* there's no reason it couldn't be used for servers as well. The
* context doesn't tell us which it is, so decide based on ssl endpoint value. */
switch (ssl->minor_ver)
{
case MBEDTLS_SSL_MINOR_VERSION_0:
return (conf->endpoint == MBEDTLS_SSL_IS_CLIENT) ? SP_PROT_SSL3_CLIENT :
SP_PROT_SSL3_SERVER;
case MBEDTLS_SSL_MINOR_VERSION_1:
return (conf->endpoint == MBEDTLS_SSL_IS_CLIENT) ? SP_PROT_TLS1_0_CLIENT :
SP_PROT_TLS1_0_SERVER;
case MBEDTLS_SSL_MINOR_VERSION_2:
return (conf->endpoint == MBEDTLS_SSL_IS_CLIENT) ? SP_PROT_TLS1_1_CLIENT :
SP_PROT_TLS1_1_SERVER;
case MBEDTLS_SSL_MINOR_VERSION_3:
return (conf->endpoint == MBEDTLS_SSL_IS_CLIENT) ? SP_PROT_TLS1_2_CLIENT :
SP_PROT_TLS1_2_SERVER;
default:
{
FIXME("MBEDTLS schannel_get_protocol: unknown protocol %d\n", ssl->minor_ver);
return 0;
}
}
}
static ALG_ID schannel_get_cipher_algid(int ciphersuite_id)
{
const mbedtls_ssl_ciphersuite_t *cipher_suite = mbedtls_ssl_ciphersuite_from_id(ciphersuite_id);
switch (cipher_suite->cipher)
{
case MBEDTLS_CIPHER_NONE:
case MBEDTLS_CIPHER_NULL:
return 0;
#ifdef MBEDTLS_ARC4_C
/* ARC4 */
case MBEDTLS_CIPHER_ARC4_128:
return CALG_RC4;
#endif
#ifdef MBEDTLS_DES_C
/* DES */
case MBEDTLS_CIPHER_DES_ECB:
case MBEDTLS_CIPHER_DES_CBC:
case MBEDTLS_CIPHER_DES_EDE_ECB:
case MBEDTLS_CIPHER_DES_EDE_CBC:
return CALG_DES;
case MBEDTLS_CIPHER_DES_EDE3_ECB:
case MBEDTLS_CIPHER_DES_EDE3_CBC:
return CALG_3DES;
#endif
#ifdef MBEDTLS_BLOWFISH_C
/* BLOWFISH */
case MBEDTLS_CIPHER_BLOWFISH_ECB:
case MBEDTLS_CIPHER_BLOWFISH_CBC:
case MBEDTLS_CIPHER_BLOWFISH_CFB64:
case MBEDTLS_CIPHER_BLOWFISH_CTR:
return CALG_RC4; // (as schannel does not support it fake it as RC4, which has a
// similar profile of low footprint and medium-high security) CALG_BLOWFISH;
#endif
#ifdef MBEDTLS_CAMELLIA_C
/* CAMELLIA */
case MBEDTLS_CIPHER_CAMELLIA_128_ECB:
case MBEDTLS_CIPHER_CAMELLIA_192_ECB:
case MBEDTLS_CIPHER_CAMELLIA_256_ECB:
case MBEDTLS_CIPHER_CAMELLIA_128_CBC:
case MBEDTLS_CIPHER_CAMELLIA_192_CBC:
case MBEDTLS_CIPHER_CAMELLIA_256_CBC:
case MBEDTLS_CIPHER_CAMELLIA_128_CFB128:
case MBEDTLS_CIPHER_CAMELLIA_192_CFB128:
case MBEDTLS_CIPHER_CAMELLIA_256_CFB128:
case MBEDTLS_CIPHER_CAMELLIA_128_CTR:
case MBEDTLS_CIPHER_CAMELLIA_192_CTR:
case MBEDTLS_CIPHER_CAMELLIA_256_CTR:
case MBEDTLS_CIPHER_CAMELLIA_128_GCM:
case MBEDTLS_CIPHER_CAMELLIA_192_GCM:
case MBEDTLS_CIPHER_CAMELLIA_256_GCM:
return CALG_AES_256; // (as schannel does not support it fake it as AES, which has a
// similar profile, offering modern high security) CALG_CAMELLIA;
#endif
#ifdef MBEDTLS_AES_C
/* AES 128 */
case MBEDTLS_CIPHER_AES_128_ECB:
case MBEDTLS_CIPHER_AES_128_CBC:
case MBEDTLS_CIPHER_AES_128_CFB128:
case MBEDTLS_CIPHER_AES_128_CTR:
case MBEDTLS_CIPHER_AES_128_GCM:
#ifdef MBEDTLS_CCM_C
case MBEDTLS_CIPHER_AES_128_CCM:
#endif
return CALG_AES_128;
case MBEDTLS_CIPHER_AES_192_ECB:
case MBEDTLS_CIPHER_AES_192_CBC:
case MBEDTLS_CIPHER_AES_192_CFB128:
case MBEDTLS_CIPHER_AES_192_CTR:
case MBEDTLS_CIPHER_AES_192_GCM:
#ifdef MBEDTLS_CCM_C
case MBEDTLS_CIPHER_AES_192_CCM:
#endif
return CALG_AES_192;
case MBEDTLS_CIPHER_AES_256_ECB:
case MBEDTLS_CIPHER_AES_256_CBC:
case MBEDTLS_CIPHER_AES_256_CFB128:
case MBEDTLS_CIPHER_AES_256_CTR:
case MBEDTLS_CIPHER_AES_256_GCM:
#ifdef MBEDTLS_CCM_C
case MBEDTLS_CIPHER_AES_256_CCM:
#endif
return CALG_AES_256;
#endif
/* nothing to show? fall through */
default:
{
FIXME("MBEDTLS schannel_get_cipher_algid: unknown algorithm %d\n", ciphersuite_id);
return 0;
}
}
}
static ALG_ID schannel_get_mac_algid(int ciphersuite_id)
{
const mbedtls_ssl_ciphersuite_t *cipher_suite = mbedtls_ssl_ciphersuite_from_id(ciphersuite_id);
switch (cipher_suite->mac)
{
case MBEDTLS_MD_NONE: return 0;
case MBEDTLS_MD_MD2: return CALG_MD2;
case MBEDTLS_MD_MD4: return CALG_MD4;
case MBEDTLS_MD_MD5: return CALG_MD5;
case MBEDTLS_MD_SHA1: return CALG_SHA1;
case MBEDTLS_MD_SHA224: return CALG_SHA;
case MBEDTLS_MD_SHA256: return CALG_SHA_256;
case MBEDTLS_MD_SHA384: return CALG_SHA_384;
case MBEDTLS_MD_SHA512: return CALG_SHA_512;
case MBEDTLS_MD_RIPEMD160: return (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_RIPEMD160); /* there's no CALG_RIPEMD or CALG_RIPEMD160 defined in <wincrypt.h> yet */
default:
{
FIXME("MBEDTLS schannel_get_mac_algid: unknown algorithm %d\n", cipher_suite->mac);
return 0;
}
}
}
static ALG_ID schannel_get_kx_algid(int ciphersuite_id)
{
const mbedtls_ssl_ciphersuite_t *cipher_suite = mbedtls_ssl_ciphersuite_from_id(ciphersuite_id);
switch (cipher_suite->key_exchange)
{
case MBEDTLS_KEY_EXCHANGE_NONE:
case MBEDTLS_KEY_EXCHANGE_PSK: /* the original implementation does not support */
return 0; /* any PSK, and does not define any `CALG_PSK` :) */
case MBEDTLS_KEY_EXCHANGE_RSA:
case MBEDTLS_KEY_EXCHANGE_RSA_PSK:
return CALG_RSA_KEYX;
case MBEDTLS_KEY_EXCHANGE_DHE_RSA:
case MBEDTLS_KEY_EXCHANGE_DHE_PSK:
return CALG_DH_EPHEM;
case MBEDTLS_KEY_EXCHANGE_ECDH_RSA:
case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA:
return CALG_ECDH;
case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK:
return CALG_ECDH_EPHEM;
default:
{
FIXME("MBEDTLS schannel_get_kx_algid: unknown algorithm %d\n", cipher_suite->key_exchange);
return 0;
}
}
}
unsigned int schan_imp_get_session_cipher_block_size(schan_imp_session session)
{
MBEDTLS_SESSION *s = (MBEDTLS_SESSION *)session;
unsigned int cipher_block_size = mbedtls_cipher_get_block_size(&s->ssl.transform->cipher_ctx_enc);
TRACE("MBEDTLS schan_imp_get_session_cipher_block_size %p returning %u.\n", session, cipher_block_size);
return cipher_block_size;
}
unsigned int schan_imp_get_max_message_size(schan_imp_session session)
{
MBEDTLS_SESSION *s = (MBEDTLS_SESSION *)session;
unsigned int max_frag_len = mbedtls_ssl_get_max_frag_len(&s->ssl);
TRACE("MBEDTLS schan_imp_get_max_message_size %p returning %u.\n", session, max_frag_len);
return max_frag_len;
}
SECURITY_STATUS schan_imp_get_connection_info(schan_imp_session session,
SecPkgContext_ConnectionInfo *info)
{
MBEDTLS_SESSION *s = (MBEDTLS_SESSION *)session;
int ciphersuite_id = mbedtls_ssl_get_ciphersuite_id(mbedtls_ssl_get_ciphersuite(&s->ssl));
TRACE("MBEDTLS schan_imp_get_connection_info %p %p.\n", session, info);
info->dwProtocol = schannel_get_protocol(&s->ssl, &s->conf);
info->aiCipher = schannel_get_cipher_algid(ciphersuite_id);
info->dwCipherStrength = schannel_get_cipher_key_size(ciphersuite_id);
info->aiHash = schannel_get_mac_algid(ciphersuite_id);
info->dwHashStrength = schannel_get_mac_key_size(ciphersuite_id);
info->aiExch = schannel_get_kx_algid(ciphersuite_id);
info->dwExchStrength = schannel_get_kx_key_size(&s->ssl, &s->conf, ciphersuite_id);
return SEC_E_OK;
}
SECURITY_STATUS schan_imp_get_session_peer_certificate(schan_imp_session session, HCERTSTORE store,
PCCERT_CONTEXT *ret)
{
MBEDTLS_SESSION *s = (MBEDTLS_SESSION *)session;
PCCERT_CONTEXT cert_context = NULL;
const mbedtls_x509_crt *next_cert;
const mbedtls_x509_crt *peer_cert = mbedtls_ssl_get_peer_cert(&s->ssl);
TRACE("MBEDTLS schan_imp_get_session_peer_certificate %p %p %p %p.\n", session, store, ret, ret != NULL ? *ret : NULL);
if (!peer_cert)
return SEC_E_INTERNAL_ERROR;
for (next_cert = peer_cert; next_cert != NULL; next_cert = next_cert->next)
{
if (!CertAddEncodedCertificateToStore(store, X509_ASN_ENCODING, next_cert->raw.p, next_cert->raw.len,
CERT_STORE_ADD_REPLACE_EXISTING, (next_cert != peer_cert) ? NULL : &cert_context))
{
if (next_cert != peer_cert)
CertFreeCertificateContext(cert_context);
return GetLastError();
}
}
*ret = cert_context;
return SEC_E_OK;
}
SECURITY_STATUS schan_imp_send(schan_imp_session session, const void *buffer,
SIZE_T *length)
{
MBEDTLS_SESSION *s = (MBEDTLS_SESSION *)session;
int ret;
ret = mbedtls_ssl_write(&s->ssl, (unsigned char *)buffer, *length);
TRACE("MBEDTLS schan_imp_send: (%p, %p, %p/%lu)\n", s, buffer, length, *length);
if (ret >= 0)
{
TRACE("MBEDTLS schan_imp_send: ret=%i.\n", ret);
*length = ret;
}
else if (ROS_SCHAN_IS_BLOCKING(ret))
{
*length = ROS_SCHAN_IS_BLOCKING_RETRIEVE(ret);
if (!*length)
{
TRACE("MBEDTLS schan_imp_send: ret=MBEDTLS_ERR_NET_WANT_WRITE -> SEC_I_CONTINUE_NEEDED; len=%lu", *length);
return SEC_I_CONTINUE_NEEDED;
}
else
{
TRACE("MBEDTLS schan_imp_send: ret=MBEDTLS_ERR_NET_WANT_WRITE -> SEC_E_OK; len=%lu", *length);
return SEC_E_OK;
}
}
else
{
ERR("MBEDTLS schan_imp_send: mbedtls_ssl_write failed with -%x\n", -ret);
return SEC_E_INTERNAL_ERROR;
}
return SEC_E_OK;
}
SECURITY_STATUS schan_imp_recv(schan_imp_session session, void *buffer,
SIZE_T *length)
{
PMBEDTLS_SESSION s = (PMBEDTLS_SESSION)session;
int ret;
TRACE("MBEDTLS schan_imp_recv: (%p, %p, %p/%lu)\n", s, buffer, length, *length);
ret = mbedtls_ssl_read(&s->ssl, (unsigned char *)buffer, *length);
TRACE("MBEDTLS schan_imp_recv: (%p, %p, %p/%lu) ret= %#x\n", s, buffer, length, *length, ret);
if (ret >= 0)
{
TRACE("MBEDTLS schan_imp_recv: ret == %i.\n", ret);
*length = ret;
}
else if (ROS_SCHAN_IS_BLOCKING(ret))
{
*length = ROS_SCHAN_IS_BLOCKING_RETRIEVE(ret);
if (!*length)
{
TRACE("MBEDTLS schan_imp_recv: ret=MBEDTLS_ERR_NET_WANT_WRITE -> SEC_I_CONTINUE_NEEDED; len=%lu", *length);
return SEC_I_CONTINUE_NEEDED;
}
else
{
TRACE("MBEDTLS schan_imp_recv: ret=MBEDTLS_ERR_NET_WANT_WRITE -> SEC_E_OK; len=%lu", *length);
return SEC_E_OK;
}
}
else if (ret == MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY)
{
*length = 0;
TRACE("MBEDTLS schan_imp_recv: ret == MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY -> SEC_E_OK\n");
return SEC_E_OK;
}
else
{
ERR("MBEDTLS schan_imp_recv: mbedtls_ssl_read failed with -%x\n", -ret);
return SEC_E_INTERNAL_ERROR;
}
return SEC_E_OK;
}
BOOL schan_imp_allocate_certificate_credentials(schan_credentials *c)
{
TRACE("MBEDTLS schan_imp_allocate_certificate_credentials %p %p %d\n", c, c->credentials, c->credential_use);
/* in our case credentials aren't really used for anything, so just stub them */
c->credentials = NULL;
return TRUE;
}
void schan_imp_free_certificate_credentials(schan_credentials *c)
{
TRACE("MBEDTLS schan_imp_free_certificate_credentials %p %p %d\n", c, c->credentials, c->credential_use);
}
BOOL schan_imp_init(void)
{
TRACE("Schannel MBEDTLS schan_imp_init\n");
return TRUE;
}
void schan_imp_deinit(void)
{
WARN("Schannel MBEDTLS schan_imp_deinit\n");
}
#endif /* SONAME_LIBMBEDTLS && !HAVE_SECURITY_SECURITY_H && !SONAME_LIBGNUTLS */
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