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#ifndef HEADER_CURL_SCHANNEL_INT_H
#define HEADER_CURL_SCHANNEL_INT_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Marc Hoersken, <info@marc-hoersken.de>, et al.
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "../curl_setup.h"
#ifdef USE_SCHANNEL
#include "vtls.h"
#if defined(_MSC_VER) && (_MSC_VER <= 1600)
/* Workaround for warning:
'type cast' : conversion from 'int' to 'LPCSTR' of greater size */
#undef CERT_STORE_PROV_MEMORY
#undef CERT_STORE_PROV_SYSTEM_A
#undef CERT_STORE_PROV_SYSTEM_W
#define CERT_STORE_PROV_MEMORY ((LPCSTR)(size_t)2)
#define CERT_STORE_PROV_SYSTEM_A ((LPCSTR)(size_t)9)
#define CERT_STORE_PROV_SYSTEM_W ((LPCSTR)(size_t)10)
#endif
/* Offered by mingw-w64 v8+, MS SDK ~10+/~VS2022+ */
#ifndef SCH_CREDENTIALS_VERSION
#define SCH_CREDENTIALS_VERSION 0x00000005
typedef enum _eTlsAlgorithmUsage {
TlsParametersCngAlgUsageKeyExchange,
TlsParametersCngAlgUsageSignature,
TlsParametersCngAlgUsageCipher,
TlsParametersCngAlgUsageDigest,
TlsParametersCngAlgUsageCertSig
} eTlsAlgorithmUsage;
/* !checksrc! disable TYPEDEFSTRUCT 1 */
typedef struct _CRYPTO_SETTINGS {
eTlsAlgorithmUsage eAlgorithmUsage;
UNICODE_STRING strCngAlgId;
DWORD cChainingModes;
PUNICODE_STRING rgstrChainingModes; /* spellchecker:disable-line */
DWORD dwMinBitLength;
DWORD dwMaxBitLength;
} CRYPTO_SETTINGS, * PCRYPTO_SETTINGS;
/* !checksrc! disable TYPEDEFSTRUCT 1 */
typedef struct _TLS_PARAMETERS {
DWORD cAlpnIds;
PUNICODE_STRING rgstrAlpnIds; /* spellchecker:disable-line */
DWORD grbitDisabledProtocols;
DWORD cDisabledCrypto;
PCRYPTO_SETTINGS pDisabledCrypto;
DWORD dwFlags;
} TLS_PARAMETERS, * PTLS_PARAMETERS;
/* !checksrc! disable TYPEDEFSTRUCT 1 */
typedef struct _SCH_CREDENTIALS {
DWORD dwVersion;
DWORD dwCredFormat;
DWORD cCreds;
PCCERT_CONTEXT* paCred;
HCERTSTORE hRootStore;
DWORD cMappers;
struct _HMAPPER **aphMappers;
DWORD dwSessionLifespan;
DWORD dwFlags;
DWORD cTlsParameters;
PTLS_PARAMETERS pTlsParameters;
} SCH_CREDENTIALS, * PSCH_CREDENTIALS;
#define SCH_CRED_MAX_SUPPORTED_PARAMETERS 16
#define SCH_CRED_MAX_SUPPORTED_ALPN_IDS 16
#define SCH_CRED_MAX_SUPPORTED_CRYPTO_SETTINGS 16
#define SCH_CRED_MAX_SUPPORTED_CHAINING_MODES 16
#endif /* SCH_CREDENTIALS_VERSION */
struct Curl_schannel_cred {
CredHandle cred_handle;
TimeStamp time_stamp;
TCHAR *sni_hostname;
HCERTSTORE client_cert_store;
int refcount;
};
struct Curl_schannel_ctxt {
CtxtHandle ctxt_handle;
TimeStamp time_stamp;
};
struct schannel_ssl_backend_data {
struct Curl_schannel_cred *cred;
struct Curl_schannel_ctxt *ctxt;
SecPkgContext_StreamSizes stream_sizes;
size_t encdata_length, decdata_length;
size_t encdata_offset, decdata_offset;
unsigned char *encdata_buffer, *decdata_buffer;
/* encdata_is_incomplete: if encdata contains only a partial record that
cannot be decrypted without another recv() (that is, status is
SEC_E_INCOMPLETE_MESSAGE) then set this true. after an recv() adds
more bytes into encdata then set this back to false. */
unsigned long req_flags, ret_flags;
CURLcode recv_unrecoverable_err; /* schannel_recv had an unrecoverable err */
BIT(recv_sspi_close_notify); /* true if connection closed by close_notify */
BIT(recv_connection_closed); /* true if connection closed, regardless how */
BIT(recv_renegotiating); /* true if recv is doing renegotiation */
BIT(use_alpn); /* true if ALPN is used for this connection */
BIT(use_manual_cred_validation); /* true if manual cred validation is used */
BIT(sent_shutdown);
BIT(encdata_is_incomplete);
};
struct schannel_cert_share {
unsigned char CAinfo_blob_digest[CURL_SHA256_DIGEST_LENGTH];
size_t CAinfo_blob_size; /* CA info blob size */
char *CAfile; /* CAfile path used to generate
certificate store */
HCERTSTORE cert_store; /* cached certificate store or
NULL if none */
struct curltime time; /* when the cached store was created */
};
/*
* size of the structure: 20 bytes.
*/
struct num_ip_data {
DWORD size; /* 04 bytes */
union {
struct in_addr ia; /* 04 bytes */
struct in6_addr ia6; /* 16 bytes */
} bData;
};
HCERTSTORE Curl_schannel_get_cached_cert_store(struct Curl_cfilter *cf,
const struct Curl_easy *data);
bool Curl_schannel_set_cached_cert_store(struct Curl_cfilter *cf,
const struct Curl_easy *data,
HCERTSTORE cert_store);
#endif /* USE_SCHANNEL */
#endif /* HEADER_CURL_SCHANNEL_INT_H */
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