2019-08-09 12:52:14 +02:00
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <windows.h>
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#include <winsock.h>
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#include <wincrypt.h>
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#include <wintrust.h>
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#include <schannel.h>
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#define SECURITY_WIN32
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#include <security.h>
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#include <sspi.h>
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#define IO_BUFFER_SIZE 0x10000
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#define TLS_MAX_BUFSIZ 32768
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// Define here to be sure
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#define SP_PROT_TLS1_2_CLIENT 0x00000800
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2019-08-10 10:05:59 +02:00
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static struct TlsContext new_tls_context();
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static void vschannel_init();
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static void vschannel_cleanup();
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static INT request(CHAR *host, CHAR *req, CHAR *out);
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2019-08-09 12:52:14 +02:00
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static SECURITY_STATUS create_credentials(PCredHandle phCreds);
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static INT connect_to_server(CHAR *host, INT port_number, SOCKET *pSocket);
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static SECURITY_STATUS perform_client_handshake(
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SOCKET Socket, PCredHandle phCreds, CHAR *host,
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CtxtHandle *phContext, SecBuffer *pExtraData);
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static SECURITY_STATUS client_handshake_loop(
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SOCKET Socket, PCredHandle phCreds, CtxtHandle *phContext,
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BOOL fDoInitialRead, SecBuffer *pExtraData);
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static SECURITY_STATUS https_make_request(
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SOCKET Socket, PCredHandle phCreds,
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CtxtHandle *phContext, CHAR *req, CHAR *out, int *length);
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static DWORD verify_server_certificate(
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PCCERT_CONTEXT pServerCert, PSTR host, DWORD dwCertFlags);
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static LONG disconnect_from_server(
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SOCKET Socket, PCredHandle phCreds, CtxtHandle *phContext);
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static void get_new_client_credentials(CredHandle *phCreds, CtxtHandle *phContext);
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