Initial project import

tools/v/thirdparty/vschannel/vschannel.h

@@ -0,0 +1,71 @@
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <windows.h>
+#include <winsock.h>
+#include <wincrypt.h>
+#include <wintrust.h>
+#include <schannel.h>
+
+#define SECURITY_WIN32
+#include <security.h>
+#include <sspi.h>
+
+#define vsc_init_resp_buff_size 44000
+
+#define IO_BUFFER_SIZE  0x10000
+
+#define TLS_MAX_BUFSIZ      32768
+
+// Define here to be sure
+#define SP_PROT_TLS1_2_CLIENT 0x00000800
+
+typedef void* (*vschannel_allocator)(void*, INT64);
+
+typedef struct TlsContext TlsContext;
+
+TlsContext new_tls_context();
+
+// ALPN (RFC 7301) support. `wire` is the standard ALPN wire format: each
+// protocol name preceded by a 1-byte length, e.g. "\x02h2\x08http/1.1".
+// vschannel_alpn_supported reports whether this Windows version's SChannel
+// can advertise ALPN at all (Windows 8.1+).
+INT vschannel_alpn_supported();
+void vschannel_set_alpn(TlsContext *tls_ctx, const char *wire, INT len);
+INT vschannel_get_alpn(TlsContext *tls_ctx, char *out, INT out_cap);
+INT vschannel_alpn_probe(TlsContext *tls_ctx, INT iport, LPWSTR host, char *out, INT out_cap);
+
+// vschannel_request_on_open runs a one-shot HTTP/1.1 request over an already
+// open connection (the HTTP/1.1 fallback when `h2` was not negotiated).
+INT vschannel_request_on_open(TlsContext *tls_ctx, CHAR *req, DWORD req_len, CHAR **out, vschannel_allocator afn);
+
+// Streaming transport for the HTTP/2 driver: open the connection and keep it
+// open, then move raw application bytes across it. See vschannel.c.
+INT vschannel_h2_connect(TlsContext *tls_ctx, INT iport, LPWSTR host);
+INT vschannel_write(TlsContext *tls_ctx, const char *buf, INT len);
+INT vschannel_read(TlsContext *tls_ctx, char *buf, INT cap);
+void vschannel_h2_close(TlsContext *tls_ctx);
+
+static void vschannel_init(TlsContext *tls_ctx, BOOL validate_server_certificate);
+
+static void vschannel_cleanup(TlsContext *tls_ctx);
+
+static INT vschannel_last_error(TlsContext *tls_ctx);
+
+static INT request(TlsContext *tls_ctx, INT iport, LPWSTR host, CHAR *req, DWORD req_len, CHAR **out, vschannel_allocator afn);
+
+static SECURITY_STATUS https_make_request(TlsContext *tls_ctx, CHAR *req, DWORD req_len, CHAR **out, int *length, vschannel_allocator afn);
+
+static INT connect_to_server(TlsContext *tls_ctx, LPWSTR host, INT port_number);
+
+static LONG disconnect_from_server(TlsContext *tls_ctx);
+
+static SECURITY_STATUS perform_client_handshake(TlsContext *tls_ctx, LPWSTR host, SecBuffer *pExtraData);
+
+static SECURITY_STATUS client_handshake_loop(TlsContext *tls_ctx, BOOL fDoInitialRead, SecBuffer *pExtraData);
+
+static DWORD verify_server_certificate(PCCERT_CONTEXT  pServerCert, LPWSTR host, DWORD dwCertFlags);
+
+static SECURITY_STATUS create_credentials(TlsContext *tls_ctx);
+
+static void get_new_client_credentials(TlsContext *tls_ctx);