static int netconn_secure_verify( int preverify_ok, X509_STORE_CTX *ctx )
{
SSL *ssl;
WCHAR *server;
BOOL ret = FALSE;
netconn_t *conn;
ssl = pX509_STORE_CTX_get_ex_data( ctx, pSSL_get_ex_data_X509_STORE_CTX_idx() );
server = pSSL_get_ex_data( ssl, hostname_idx );
conn = pSSL_get_ex_data( ssl, conn_idx );
if (preverify_ok)
{
HCERTSTORE store = CertOpenStore( CERT_STORE_PROV_MEMORY, 0, 0,
CERT_STORE_CREATE_NEW_FLAG, NULL );
if (store)
{
X509 *cert;
int i;
PCCERT_CONTEXT endCert = NULL;
ret = TRUE;
for (i = 0; ret && i < psk_num((struct stack_st *)ctx->chain); i++)
{
PCCERT_CONTEXT context;
cert = (X509 *)psk_value((struct stack_st *)ctx->chain, i);
if ((context = X509_to_cert_context( cert )))
{
if (i == 0)
ret = CertAddCertificateContextToStore( store, context,
CERT_STORE_ADD_ALWAYS, &endCert );
else
ret = CertAddCertificateContextToStore( store, context,
CERT_STORE_ADD_ALWAYS, NULL );
CertFreeCertificateContext( context );
}
}
if (!endCert) ret = FALSE;
if (ret)
{
DWORD_PTR err = netconn_verify_cert( endCert, store, server,
conn->security_flags );
if (err)
{
pSSL_set_ex_data( ssl, error_idx, (void *)err );
ret = FALSE;
}
}
CertFreeCertificateContext( endCert );
CertCloseStore( store, 0 );
}
}
return ret;
}
static DWORD netcon_secure_connect_setup(netconn_t *connection, BOOL compat_mode)
{
SecBuffer out_buf = {0, SECBUFFER_TOKEN, NULL}, in_bufs[2] = {{0, SECBUFFER_TOKEN}, {0, SECBUFFER_EMPTY}};
SecBufferDesc out_desc = {SECBUFFER_VERSION, 1, &out_buf}, in_desc = {SECBUFFER_VERSION, 2, in_bufs};
SecHandle *cred = &cred_handle;
BYTE *read_buf;
SIZE_T read_buf_size = 2048;
ULONG attrs = 0;
CtxtHandle ctx;
SSIZE_T size;
int bits;
const CERT_CONTEXT *cert;
SECURITY_STATUS status;
DWORD res = ERROR_SUCCESS;
const DWORD isc_req_flags = ISC_REQ_ALLOCATE_MEMORY|ISC_REQ_USE_SESSION_KEY|ISC_REQ_CONFIDENTIALITY
|ISC_REQ_SEQUENCE_DETECT|ISC_REQ_REPLAY_DETECT|ISC_REQ_MANUAL_CRED_VALIDATION;
if(!ensure_cred_handle())
return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
if(compat_mode) {
if(!have_compat_cred_handle)
return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
cred = &compat_cred_handle;
}
read_buf = heap_alloc(read_buf_size);
if(!read_buf)
return ERROR_OUTOFMEMORY;
status = InitializeSecurityContextW(cred, NULL, connection->server->name, isc_req_flags, 0, 0, NULL, 0,
&ctx, &out_desc, &attrs, NULL);
assert(status != SEC_E_OK);
while(status == SEC_I_CONTINUE_NEEDED || status == SEC_E_INCOMPLETE_MESSAGE) {
if(out_buf.cbBuffer) {
assert(status == SEC_I_CONTINUE_NEEDED);
TRACE("sending %lu bytes\n", out_buf.cbBuffer);
size = sock_send(connection->socket, out_buf.pvBuffer, out_buf.cbBuffer, 0);
if(size != out_buf.cbBuffer) {
ERR("send failed\n");
status = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
break;
}
FreeContextBuffer(out_buf.pvBuffer);
out_buf.pvBuffer = NULL;
out_buf.cbBuffer = 0;
}
if(status == SEC_I_CONTINUE_NEEDED) {
assert(in_bufs[1].cbBuffer < read_buf_size);
memmove(read_buf, (BYTE*)in_bufs[0].pvBuffer+in_bufs[0].cbBuffer-in_bufs[1].cbBuffer, in_bufs[1].cbBuffer);
in_bufs[0].cbBuffer = in_bufs[1].cbBuffer;
in_bufs[1].BufferType = SECBUFFER_EMPTY;
in_bufs[1].cbBuffer = 0;
in_bufs[1].pvBuffer = NULL;
}
assert(in_bufs[0].BufferType == SECBUFFER_TOKEN);
assert(in_bufs[1].BufferType == SECBUFFER_EMPTY);
if(in_bufs[0].cbBuffer + 1024 > read_buf_size) {
BYTE *new_read_buf;
new_read_buf = heap_realloc(read_buf, read_buf_size + 1024);
if(!new_read_buf) {
status = E_OUTOFMEMORY;
break;
}
in_bufs[0].pvBuffer = read_buf = new_read_buf;
read_buf_size += 1024;
}
size = sock_recv(connection->socket, read_buf+in_bufs[0].cbBuffer, read_buf_size-in_bufs[0].cbBuffer, 0);
if(size < 1) {
WARN("recv error\n");
res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
break;
}
TRACE("recv %tu bytes\n", size);
in_bufs[0].cbBuffer += size;
in_bufs[0].pvBuffer = read_buf;
status = InitializeSecurityContextW(cred, &ctx, connection->server->name, isc_req_flags, 0, 0, &in_desc,
0, NULL, &out_desc, &attrs, NULL);
TRACE("InitializeSecurityContext ret %08x\n", status);
if(status == SEC_E_OK) {
if(SecIsValidHandle(&connection->ssl_ctx))
DeleteSecurityContext(&connection->ssl_ctx);
connection->ssl_ctx = ctx;
if(in_bufs[1].BufferType == SECBUFFER_EXTRA)
FIXME("SECBUFFER_EXTRA not supported\n");
status = QueryContextAttributesW(&ctx, SECPKG_ATTR_STREAM_SIZES, &connection->ssl_sizes);
if(status != SEC_E_OK) {
WARN("Could not get sizes\n");
break;
}
status = QueryContextAttributesW(&ctx, SECPKG_ATTR_REMOTE_CERT_CONTEXT, (void*)&cert);
if(status == SEC_E_OK) {
res = netconn_verify_cert(connection, cert, cert->hCertStore);
CertFreeCertificateContext(cert);
if(res != ERROR_SUCCESS) {
WARN("cert verify failed: %u\n", res);
break;
}
}else {
WARN("Could not get cert\n");
break;
}
connection->ssl_buf = heap_alloc(connection->ssl_sizes.cbHeader + connection->ssl_sizes.cbMaximumMessage
+ connection->ssl_sizes.cbTrailer);
if(!connection->ssl_buf) {
res = GetLastError();
break;
}
}
}
heap_free(read_buf);
if(status != SEC_E_OK || res != ERROR_SUCCESS) {
WARN("Failed to establish SSL connection: %08x (%u)\n", status, res);
heap_free(connection->ssl_buf);
connection->ssl_buf = NULL;
return res ? res : ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
}
TRACE("established SSL connection\n");
connection->secure = TRUE;
connection->security_flags |= SECURITY_FLAG_SECURE;
bits = NETCON_GetCipherStrength(connection);
if (bits >= 128)
connection->security_flags |= SECURITY_FLAG_STRENGTH_STRONG;
else if (bits >= 56)
connection->security_flags |= SECURITY_FLAG_STRENGTH_MEDIUM;
else
connection->security_flags |= SECURITY_FLAG_STRENGTH_WEAK;
if(connection->mask_errors)
connection->server->security_flags = connection->security_flags;
return ERROR_SUCCESS;
}
BOOL netconn_secure_connect( netconn_t *conn, WCHAR *hostname )
{
SecBuffer out_buf = {0, SECBUFFER_TOKEN, NULL}, in_bufs[2] = {{0, SECBUFFER_TOKEN}, {0, SECBUFFER_EMPTY}};
SecBufferDesc out_desc = {SECBUFFER_VERSION, 1, &out_buf}, in_desc = {SECBUFFER_VERSION, 2, in_bufs};
BYTE *read_buf;
SIZE_T read_buf_size = 2048;
ULONG attrs = 0;
CtxtHandle ctx;
SSIZE_T size;
const CERT_CONTEXT *cert;
SECURITY_STATUS status;
DWORD res = ERROR_SUCCESS;
const DWORD isc_req_flags = ISC_REQ_ALLOCATE_MEMORY|ISC_REQ_USE_SESSION_KEY|ISC_REQ_CONFIDENTIALITY
|ISC_REQ_SEQUENCE_DETECT|ISC_REQ_REPLAY_DETECT|ISC_REQ_MANUAL_CRED_VALIDATION;
if(!ensure_cred_handle())
return FALSE;
read_buf = heap_alloc(read_buf_size);
if(!read_buf)
return FALSE;
status = InitializeSecurityContextW(&cred_handle, NULL, hostname, isc_req_flags, 0, 0, NULL, 0,
&ctx, &out_desc, &attrs, NULL);
assert(status != SEC_E_OK);
while(status == SEC_I_CONTINUE_NEEDED || status == SEC_E_INCOMPLETE_MESSAGE) {
if(out_buf.cbBuffer) {
assert(status == SEC_I_CONTINUE_NEEDED);
TRACE("sending %u bytes\n", out_buf.cbBuffer);
size = sock_send(conn->socket, out_buf.pvBuffer, out_buf.cbBuffer, 0);
if(size != out_buf.cbBuffer) {
ERR("send failed\n");
res = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
break;
}
FreeContextBuffer(out_buf.pvBuffer);
out_buf.pvBuffer = NULL;
out_buf.cbBuffer = 0;
}
if(status == SEC_I_CONTINUE_NEEDED) {
assert(in_bufs[1].cbBuffer < read_buf_size);
memmove(read_buf, (BYTE*)in_bufs[0].pvBuffer+in_bufs[0].cbBuffer-in_bufs[1].cbBuffer, in_bufs[1].cbBuffer);
in_bufs[0].cbBuffer = in_bufs[1].cbBuffer;
in_bufs[1].BufferType = SECBUFFER_EMPTY;
in_bufs[1].cbBuffer = 0;
in_bufs[1].pvBuffer = NULL;
}
assert(in_bufs[0].BufferType == SECBUFFER_TOKEN);
assert(in_bufs[1].BufferType == SECBUFFER_EMPTY);
if(in_bufs[0].cbBuffer + 1024 > read_buf_size) {
BYTE *new_read_buf;
new_read_buf = heap_realloc(read_buf, read_buf_size + 1024);
if(!new_read_buf) {
status = E_OUTOFMEMORY;
break;
}
in_bufs[0].pvBuffer = read_buf = new_read_buf;
read_buf_size += 1024;
}
size = sock_recv(conn->socket, read_buf+in_bufs[0].cbBuffer, read_buf_size-in_bufs[0].cbBuffer, 0);
if(size < 1) {
WARN("recv error\n");
status = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
break;
}
TRACE("recv %lu bytes\n", size);
in_bufs[0].cbBuffer += size;
in_bufs[0].pvBuffer = read_buf;
status = InitializeSecurityContextW(&cred_handle, &ctx, hostname, isc_req_flags, 0, 0, &in_desc,
0, NULL, &out_desc, &attrs, NULL);
TRACE("InitializeSecurityContext ret %08x\n", status);
if(status == SEC_E_OK) {
if(in_bufs[1].BufferType == SECBUFFER_EXTRA)
FIXME("SECBUFFER_EXTRA not supported\n");
status = QueryContextAttributesW(&ctx, SECPKG_ATTR_STREAM_SIZES, &conn->ssl_sizes);
if(status != SEC_E_OK) {
WARN("Could not get sizes\n");
break;
}
status = QueryContextAttributesW(&ctx, SECPKG_ATTR_REMOTE_CERT_CONTEXT, (void*)&cert);
if(status == SEC_E_OK) {
res = netconn_verify_cert(cert, hostname, conn->security_flags);
CertFreeCertificateContext(cert);
if(res != ERROR_SUCCESS) {
WARN("cert verify failed: %u\n", res);
break;
}
} else {
WARN("Could not get cert\n");
break;
}
conn->ssl_buf = heap_alloc(conn->ssl_sizes.cbHeader + conn->ssl_sizes.cbMaximumMessage + conn->ssl_sizes.cbTrailer);
if(!conn->ssl_buf) {
res = GetLastError();
break;
}
}
}
heap_free(read_buf);
if(status != SEC_E_OK || res != ERROR_SUCCESS) {
WARN("Failed to initialize security context failed: %08x\n", status);
heap_free(conn->ssl_buf);
conn->ssl_buf = NULL;
DeleteSecurityContext(&ctx);
set_last_error(res ? res : ERROR_WINHTTP_SECURE_CHANNEL_ERROR);
return FALSE;
}
TRACE("established SSL connection\n");
conn->secure = TRUE;
conn->ssl_ctx = ctx;
return TRUE;
}
