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wine/dlls/winhttp/net.c

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/*
* Copyright 2008 Hans Leidekker for CodeWeavers
*
* 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"
#include <stdarg.h>
#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_FILIO_H
# include <sys/filio.h>
#endif
#ifdef HAVE_POLL_H
# include <poll.h>
#endif
#ifdef HAVE_OPENSSL_SSL_H
# include <openssl/ssl.h>
# include <openssl/opensslv.h>
#undef FAR
#undef DSA
#endif
#define NONAMELESSUNION
#include "wine/debug.h"
#include "wine/library.h"
#include "windef.h"
#include "winbase.h"
#include "winhttp.h"
#include "wincrypt.h"
#include "winhttp_private.h"
/* to avoid conflicts with the Unix socket headers */
#define USE_WS_PREFIX
#include "winsock2.h"
WINE_DEFAULT_DEBUG_CHANNEL(winhttp);
#ifndef HAVE_GETADDRINFO
/* critical section to protect non-reentrant gethostbyname() */
static CRITICAL_SECTION cs_gethostbyname;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &cs_gethostbyname,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": cs_gethostbyname") }
};
static CRITICAL_SECTION cs_gethostbyname = { &critsect_debug, -1, 0, 0, 0, 0 };
#endif
#ifdef SONAME_LIBSSL
#include <openssl/err.h>
static CRITICAL_SECTION init_ssl_cs;
static CRITICAL_SECTION_DEBUG init_ssl_cs_debug =
{
0, 0, &init_ssl_cs,
{ &init_ssl_cs_debug.ProcessLocksList,
&init_ssl_cs_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": init_ssl_cs") }
};
static CRITICAL_SECTION init_ssl_cs = { &init_ssl_cs_debug, -1, 0, 0, 0, 0 };
static void *libssl_handle;
static void *libcrypto_handle;
#if defined(OPENSSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER > 0x10000000)
static const SSL_METHOD *method;
#else
static SSL_METHOD *method;
#endif
static SSL_CTX *ctx;
static int hostname_idx;
static int error_idx;
static int conn_idx;
#define MAKE_FUNCPTR(f) static typeof(f) * p##f
MAKE_FUNCPTR( SSL_library_init );
MAKE_FUNCPTR( SSL_load_error_strings );
MAKE_FUNCPTR( SSLv23_method );
MAKE_FUNCPTR( SSL_CTX_free );
MAKE_FUNCPTR( SSL_CTX_new );
MAKE_FUNCPTR( SSL_new );
MAKE_FUNCPTR( SSL_free );
MAKE_FUNCPTR( SSL_set_fd );
MAKE_FUNCPTR( SSL_connect );
MAKE_FUNCPTR( SSL_shutdown );
MAKE_FUNCPTR( SSL_write );
MAKE_FUNCPTR( SSL_read );
MAKE_FUNCPTR( SSL_pending );
MAKE_FUNCPTR( SSL_get_error );
MAKE_FUNCPTR( SSL_get_ex_new_index );
MAKE_FUNCPTR( SSL_get_ex_data );
MAKE_FUNCPTR( SSL_set_ex_data );
MAKE_FUNCPTR( SSL_get_ex_data_X509_STORE_CTX_idx );
MAKE_FUNCPTR( SSL_get_peer_certificate );
MAKE_FUNCPTR( SSL_CTX_set_default_verify_paths );
MAKE_FUNCPTR( SSL_CTX_set_verify );
MAKE_FUNCPTR( SSL_get_current_cipher );
MAKE_FUNCPTR( SSL_CIPHER_get_bits );
MAKE_FUNCPTR( CRYPTO_num_locks );
MAKE_FUNCPTR( CRYPTO_set_id_callback );
MAKE_FUNCPTR( CRYPTO_set_locking_callback );
MAKE_FUNCPTR( ERR_free_strings );
MAKE_FUNCPTR( ERR_get_error );
MAKE_FUNCPTR( ERR_error_string );
MAKE_FUNCPTR( X509_STORE_CTX_get_ex_data );
MAKE_FUNCPTR( X509_STORE_CTX_get_chain );
MAKE_FUNCPTR( i2d_X509 );
MAKE_FUNCPTR( sk_value );
MAKE_FUNCPTR( sk_num );
#undef MAKE_FUNCPTR
static CRITICAL_SECTION *ssl_locks;
static unsigned int num_ssl_locks;
static unsigned long ssl_thread_id(void)
{
return GetCurrentThreadId();
}
static void ssl_lock_callback(int mode, int type, const char *file, int line)
{
if (mode & CRYPTO_LOCK)
EnterCriticalSection( &ssl_locks[type] );
else
LeaveCriticalSection( &ssl_locks[type] );
}
#endif
/* translate a unix error code into a winsock error code */
static int sock_get_error( int err )
{
#if !defined(__MINGW32__) && !defined (_MSC_VER)
switch (err)
{
case EINTR: return WSAEINTR;
case EBADF: return WSAEBADF;
case EPERM:
case EACCES: return WSAEACCES;
case EFAULT: return WSAEFAULT;
case EINVAL: return WSAEINVAL;
case EMFILE: return WSAEMFILE;
case EWOULDBLOCK: return WSAEWOULDBLOCK;
case EINPROGRESS: return WSAEINPROGRESS;
case EALREADY: return WSAEALREADY;
case ENOTSOCK: return WSAENOTSOCK;
case EDESTADDRREQ: return WSAEDESTADDRREQ;
case EMSGSIZE: return WSAEMSGSIZE;
case EPROTOTYPE: return WSAEPROTOTYPE;
case ENOPROTOOPT: return WSAENOPROTOOPT;
case EPROTONOSUPPORT: return WSAEPROTONOSUPPORT;
case ESOCKTNOSUPPORT: return WSAESOCKTNOSUPPORT;
case EOPNOTSUPP: return WSAEOPNOTSUPP;
case EPFNOSUPPORT: return WSAEPFNOSUPPORT;
case EAFNOSUPPORT: return WSAEAFNOSUPPORT;
case EADDRINUSE: return WSAEADDRINUSE;
case EADDRNOTAVAIL: return WSAEADDRNOTAVAIL;
case ENETDOWN: return WSAENETDOWN;
case ENETUNREACH: return WSAENETUNREACH;
case ENETRESET: return WSAENETRESET;
case ECONNABORTED: return WSAECONNABORTED;
case EPIPE:
case ECONNRESET: return WSAECONNRESET;
case ENOBUFS: return WSAENOBUFS;
case EISCONN: return WSAEISCONN;
case ENOTCONN: return WSAENOTCONN;
case ESHUTDOWN: return WSAESHUTDOWN;
case ETOOMANYREFS: return WSAETOOMANYREFS;
case ETIMEDOUT: return WSAETIMEDOUT;
case ECONNREFUSED: return WSAECONNREFUSED;
case ELOOP: return WSAELOOP;
case ENAMETOOLONG: return WSAENAMETOOLONG;
case EHOSTDOWN: return WSAEHOSTDOWN;
case EHOSTUNREACH: return WSAEHOSTUNREACH;
case ENOTEMPTY: return WSAENOTEMPTY;
#ifdef EPROCLIM
case EPROCLIM: return WSAEPROCLIM;
#endif
#ifdef EUSERS
case EUSERS: return WSAEUSERS;
#endif
#ifdef EDQUOT
case EDQUOT: return WSAEDQUOT;
#endif
#ifdef ESTALE
case ESTALE: return WSAESTALE;
#endif
#ifdef EREMOTE
case EREMOTE: return WSAEREMOTE;
#endif
default: errno = err; perror( "sock_set_error" ); return WSAEFAULT;
}
#endif
return err;
}
#ifdef SONAME_LIBSSL
static PCCERT_CONTEXT X509_to_cert_context(X509 *cert)
{
unsigned char *buffer, *p;
int len;
BOOL malloc = FALSE;
PCCERT_CONTEXT ret;
p = NULL;
if ((len = pi2d_X509( cert, &p )) < 0) return NULL;
/*
* SSL 0.9.7 and above malloc the buffer if it is null.
* however earlier version do not and so we would need to alloc the buffer.
*
* see the i2d_X509 man page for more details.
*/
if (!p)
{
if (!(buffer = heap_alloc( len ))) return NULL;
p = buffer;
len = pi2d_X509( cert, &p );
}
else
{
buffer = p;
malloc = TRUE;
}
ret = CertCreateCertificateContext( X509_ASN_ENCODING, buffer, len );
if (malloc) free( buffer );
else heap_free( buffer );
return ret;
}
static DWORD netconn_verify_cert( PCCERT_CONTEXT cert, HCERTSTORE store,
WCHAR *server, DWORD security_flags )
{
BOOL ret;
CERT_CHAIN_PARA chainPara = { sizeof(chainPara), { 0 } };
PCCERT_CHAIN_CONTEXT chain;
char oid_server_auth[] = szOID_PKIX_KP_SERVER_AUTH;
char *server_auth[] = { oid_server_auth };
DWORD err = ERROR_SUCCESS;
TRACE("verifying %s\n", debugstr_w( server ));
chainPara.RequestedUsage.Usage.cUsageIdentifier = 1;
chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = server_auth;
if ((ret = CertGetCertificateChain( NULL, cert, NULL, store, &chainPara,
CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT,
NULL, &chain )))
{
if (chain->TrustStatus.dwErrorStatus)
{
static const DWORD supportedErrors =
CERT_TRUST_IS_NOT_TIME_VALID |
CERT_TRUST_IS_UNTRUSTED_ROOT |
CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_NOT_TIME_VALID)
{
if (!(security_flags & SECURITY_FLAG_IGNORE_CERT_DATE_INVALID))
err = ERROR_WINHTTP_SECURE_CERT_DATE_INVALID;
}
else if (chain->TrustStatus.dwErrorStatus &
CERT_TRUST_IS_UNTRUSTED_ROOT)
{
if (!(security_flags & SECURITY_FLAG_IGNORE_UNKNOWN_CA))
err = ERROR_WINHTTP_SECURE_INVALID_CA;
}
else if ((chain->TrustStatus.dwErrorStatus &
CERT_TRUST_IS_OFFLINE_REVOCATION) ||
(chain->TrustStatus.dwErrorStatus &
CERT_TRUST_REVOCATION_STATUS_UNKNOWN))
err = ERROR_WINHTTP_SECURE_CERT_REV_FAILED;
else if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_REVOKED)
err = ERROR_WINHTTP_SECURE_CERT_REVOKED;
else if (chain->TrustStatus.dwErrorStatus &
CERT_TRUST_IS_NOT_VALID_FOR_USAGE)
{
if (!(security_flags & SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE))
err = ERROR_WINHTTP_SECURE_CERT_WRONG_USAGE;
}
else if (chain->TrustStatus.dwErrorStatus & ~supportedErrors)
err = ERROR_WINHTTP_SECURE_INVALID_CERT;
}
if (!err)
{
CERT_CHAIN_POLICY_PARA policyPara;
SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslExtraPolicyPara;
CERT_CHAIN_POLICY_STATUS policyStatus;
CERT_CHAIN_CONTEXT chainCopy;
/* Clear chain->TrustStatus.dwErrorStatus so
* CertVerifyCertificateChainPolicy will verify additional checks
* rather than stopping with an existing, ignored error.
*/
memcpy(&chainCopy, chain, sizeof(chainCopy));
chainCopy.TrustStatus.dwErrorStatus = 0;
sslExtraPolicyPara.u.cbSize = sizeof(sslExtraPolicyPara);
sslExtraPolicyPara.dwAuthType = AUTHTYPE_SERVER;
sslExtraPolicyPara.pwszServerName = server;
sslExtraPolicyPara.fdwChecks = security_flags;
policyPara.cbSize = sizeof(policyPara);
policyPara.dwFlags = 0;
policyPara.pvExtraPolicyPara = &sslExtraPolicyPara;
ret = CertVerifyCertificateChainPolicy( CERT_CHAIN_POLICY_SSL,
&chainCopy, &policyPara,
&policyStatus );
/* Any error in the policy status indicates that the
* policy couldn't be verified.
*/
if (ret && policyStatus.dwError)
{
if (policyStatus.dwError == CERT_E_CN_NO_MATCH)
err = ERROR_WINHTTP_SECURE_CERT_CN_INVALID;
else
err = ERROR_WINHTTP_SECURE_INVALID_CERT;
}
}
CertFreeCertificateChain( chain );
}
else
err = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
TRACE("returning %08x\n", err);
return err;
}
static int netconn_secure_verify( int preverify_ok, X509_STORE_CTX *ctx )
{
SSL *ssl;
WCHAR *server;
BOOL ret = FALSE;
netconn_t *conn;
HCERTSTORE store = CertOpenStore( CERT_STORE_PROV_MEMORY, 0, 0,
CERT_STORE_CREATE_NEW_FLAG, NULL );
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 (store)
{
X509 *cert;
int i;
PCCERT_CONTEXT endCert = NULL;
struct stack_st *chain = (struct stack_st *)pX509_STORE_CTX_get_chain( ctx );
ret = TRUE;
for (i = 0; ret && i < psk_num(chain); i++)
{
PCCERT_CONTEXT context;
cert = (X509 *)psk_value(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;
}
#endif
BOOL netconn_init( netconn_t *conn, BOOL secure )
{
#if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
int i;
#endif
conn->socket = -1;
if (!secure) return TRUE;
#if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
EnterCriticalSection( &init_ssl_cs );
if (libssl_handle)
{
LeaveCriticalSection( &init_ssl_cs );
return TRUE;
}
if (!(libssl_handle = wine_dlopen( SONAME_LIBSSL, RTLD_NOW, NULL, 0 )))
{
ERR("Trying to use SSL but couldn't load %s. Expect trouble.\n", SONAME_LIBSSL);
set_last_error( ERROR_WINHTTP_SECURE_CHANNEL_ERROR );
LeaveCriticalSection( &init_ssl_cs );
return FALSE;
}
if (!(libcrypto_handle = wine_dlopen( SONAME_LIBCRYPTO, RTLD_NOW, NULL, 0 )))
{
ERR("Trying to use SSL but couldn't load %s. Expect trouble.\n", SONAME_LIBCRYPTO);
set_last_error( ERROR_WINHTTP_SECURE_CHANNEL_ERROR );
LeaveCriticalSection( &init_ssl_cs );
return FALSE;
}
#define LOAD_FUNCPTR(x) \
if (!(p##x = wine_dlsym( libssl_handle, #x, NULL, 0 ))) \
{ \
ERR("Failed to load symbol %s\n", #x); \
set_last_error( ERROR_WINHTTP_SECURE_CHANNEL_ERROR ); \
LeaveCriticalSection( &init_ssl_cs ); \
return FALSE; \
}
LOAD_FUNCPTR( SSL_library_init );
LOAD_FUNCPTR( SSL_load_error_strings );
LOAD_FUNCPTR( SSLv23_method );
LOAD_FUNCPTR( SSL_CTX_free );
LOAD_FUNCPTR( SSL_CTX_new );
LOAD_FUNCPTR( SSL_new );
LOAD_FUNCPTR( SSL_free );
LOAD_FUNCPTR( SSL_set_fd );
LOAD_FUNCPTR( SSL_connect );
LOAD_FUNCPTR( SSL_shutdown );
LOAD_FUNCPTR( SSL_write );
LOAD_FUNCPTR( SSL_read );
LOAD_FUNCPTR( SSL_pending );
LOAD_FUNCPTR( SSL_get_error );
LOAD_FUNCPTR( SSL_get_ex_new_index );
LOAD_FUNCPTR( SSL_get_ex_data );
LOAD_FUNCPTR( SSL_set_ex_data );
LOAD_FUNCPTR( SSL_get_ex_data_X509_STORE_CTX_idx );
LOAD_FUNCPTR( SSL_get_peer_certificate );
LOAD_FUNCPTR( SSL_CTX_set_default_verify_paths );
LOAD_FUNCPTR( SSL_CTX_set_verify );
LOAD_FUNCPTR( SSL_get_current_cipher );
LOAD_FUNCPTR( SSL_CIPHER_get_bits );
#undef LOAD_FUNCPTR
#define LOAD_FUNCPTR(x) \
if (!(p##x = wine_dlsym( libcrypto_handle, #x, NULL, 0 ))) \
{ \
ERR("Failed to load symbol %s\n", #x); \
set_last_error( ERROR_WINHTTP_SECURE_CHANNEL_ERROR ); \
LeaveCriticalSection( &init_ssl_cs ); \
return FALSE; \
}
LOAD_FUNCPTR( CRYPTO_num_locks );
LOAD_FUNCPTR( CRYPTO_set_id_callback );
LOAD_FUNCPTR( CRYPTO_set_locking_callback );
LOAD_FUNCPTR( ERR_free_strings );
LOAD_FUNCPTR( ERR_get_error );
LOAD_FUNCPTR( ERR_error_string );
LOAD_FUNCPTR( X509_STORE_CTX_get_ex_data );
LOAD_FUNCPTR( X509_STORE_CTX_get_chain );
LOAD_FUNCPTR( i2d_X509 );
LOAD_FUNCPTR( sk_value );
LOAD_FUNCPTR( sk_num );
#undef LOAD_FUNCPTR
pSSL_library_init();
pSSL_load_error_strings();
method = pSSLv23_method();
ctx = pSSL_CTX_new( method );
if (!pSSL_CTX_set_default_verify_paths( ctx ))
{
ERR("SSL_CTX_set_default_verify_paths failed: %s\n", pERR_error_string( pERR_get_error(), 0 ));
set_last_error( ERROR_OUTOFMEMORY );
LeaveCriticalSection( &init_ssl_cs );
return FALSE;
}
hostname_idx = pSSL_get_ex_new_index( 0, (void *)"hostname index", NULL, NULL, NULL );
if (hostname_idx == -1)
{
ERR("SSL_get_ex_new_index failed: %s\n", pERR_error_string( pERR_get_error(), 0 ));
set_last_error( ERROR_OUTOFMEMORY );
LeaveCriticalSection( &init_ssl_cs );
return FALSE;
}
error_idx = pSSL_get_ex_new_index( 0, (void *)"error index", NULL, NULL, NULL );
if (error_idx == -1)
{
ERR("SSL_get_ex_new_index failed: %s\n", pERR_error_string( pERR_get_error(), 0 ));
set_last_error( ERROR_OUTOFMEMORY );
LeaveCriticalSection( &init_ssl_cs );
return FALSE;
}
conn_idx = pSSL_get_ex_new_index( 0, (void *)"netconn index", NULL, NULL, NULL );
if (conn_idx == -1)
{
ERR("SSL_get_ex_new_index failed: %s\n", pERR_error_string( pERR_get_error(), 0 ));
set_last_error( ERROR_OUTOFMEMORY );
LeaveCriticalSection( &init_ssl_cs );
return FALSE;
}
pSSL_CTX_set_verify( ctx, SSL_VERIFY_PEER, netconn_secure_verify );
pCRYPTO_set_id_callback(ssl_thread_id);
num_ssl_locks = pCRYPTO_num_locks();
ssl_locks = heap_alloc(num_ssl_locks * sizeof(CRITICAL_SECTION));
if (!ssl_locks)
{
set_last_error( ERROR_OUTOFMEMORY );
LeaveCriticalSection( &init_ssl_cs );
return FALSE;
}
for (i = 0; i < num_ssl_locks; i++)
{
InitializeCriticalSection( &ssl_locks[i] );
ssl_locks[i].DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ssl_locks");
}
pCRYPTO_set_locking_callback(ssl_lock_callback);
LeaveCriticalSection( &init_ssl_cs );
#else
WARN("SSL support not compiled in.\n");
set_last_error( ERROR_WINHTTP_SECURE_CHANNEL_ERROR );
return FALSE;
#endif
return TRUE;
}
void netconn_unload( void )
{
#if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
if (libcrypto_handle)
{
pERR_free_strings();
wine_dlclose( libcrypto_handle, NULL, 0 );
}
if (libssl_handle)
{
if (ctx)
pSSL_CTX_free( ctx );
wine_dlclose( libssl_handle, NULL, 0 );
}
if (ssl_locks)
{
int i;
for (i = 0; i < num_ssl_locks; i++)
{
ssl_locks[i].DebugInfo->Spare[0] = 0;
DeleteCriticalSection( &ssl_locks[i] );
}
heap_free( ssl_locks );
}
DeleteCriticalSection(&init_ssl_cs);
#endif
#ifndef HAVE_GETADDRINFO
DeleteCriticalSection(&cs_gethostbyname);
#endif
}
BOOL netconn_connected( netconn_t *conn )
{
return (conn->socket != -1);
}
BOOL netconn_create( netconn_t *conn, int domain, int type, int protocol )
{
if ((conn->socket = socket( domain, type, protocol )) == -1)
{
WARN("unable to create socket (%s)\n", strerror(errno));
set_last_error( sock_get_error( errno ) );
return FALSE;
}
return TRUE;
}
BOOL netconn_close( netconn_t *conn )
{
int res;
#ifdef SONAME_LIBSSL
if (conn->secure)
{
heap_free( conn->peek_msg_mem );
conn->peek_msg_mem = NULL;
conn->peek_msg = NULL;
conn->peek_len = 0;
pSSL_shutdown( conn->ssl_conn );
pSSL_free( conn->ssl_conn );
conn->ssl_conn = NULL;
conn->secure = FALSE;
}
#endif
res = closesocket( conn->socket );
conn->socket = -1;
if (res == -1)
{
set_last_error( sock_get_error( errno ) );
return FALSE;
}
return TRUE;
}
BOOL netconn_connect( netconn_t *conn, const struct sockaddr *sockaddr, unsigned int addr_len, int timeout )
{
BOOL ret = FALSE;
int res = 0, state;
if (timeout > 0)
{
state = 1;
ioctlsocket( conn->socket, FIONBIO, &state );
}
if (connect( conn->socket, sockaddr, addr_len ) < 0)
{
res = sock_get_error( errno );
if (res == WSAEWOULDBLOCK || res == WSAEINPROGRESS)
{
struct pollfd pfd;
pfd.fd = conn->socket;
pfd.events = POLLOUT;
if (poll( &pfd, 1, timeout ) > 0)
ret = TRUE;
else
res = sock_get_error( errno );
}
}
else
ret = TRUE;
if (timeout > 0)
{
state = 0;
ioctlsocket( conn->socket, FIONBIO, &state );
}
if (!ret)
{
WARN("unable to connect to host (%d)\n", res);
set_last_error( res );
}
return ret;
}
BOOL netconn_secure_connect( netconn_t *conn, WCHAR *hostname )
{
#ifdef SONAME_LIBSSL
if (!(conn->ssl_conn = pSSL_new( ctx )))
{
ERR("SSL_new failed: %s\n", pERR_error_string( pERR_get_error(), 0 ));
set_last_error( ERROR_OUTOFMEMORY );
goto fail;
}
if (!pSSL_set_ex_data( conn->ssl_conn, hostname_idx, hostname ))
{
ERR("SSL_set_ex_data failed: %s\n", pERR_error_string( pERR_get_error(), 0 ));
set_last_error( ERROR_WINHTTP_SECURE_CHANNEL_ERROR );
goto fail;
}
if (!pSSL_set_ex_data( conn->ssl_conn, conn_idx, conn ))
{
ERR("SSL_set_ex_data failed: %s\n", pERR_error_string( pERR_get_error(), 0 ));
set_last_error( ERROR_WINHTTP_SECURE_CHANNEL_ERROR );
return FALSE;
}
if (!pSSL_set_fd( conn->ssl_conn, conn->socket ))
{
ERR("SSL_set_fd failed: %s\n", pERR_error_string( pERR_get_error(), 0 ));
set_last_error( ERROR_WINHTTP_SECURE_CHANNEL_ERROR );
goto fail;
}
if (pSSL_connect( conn->ssl_conn ) <= 0)
{
DWORD err;
err = (DWORD_PTR)pSSL_get_ex_data( conn->ssl_conn, error_idx );
if (!err) err = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
ERR("couldn't verify server certificate (%d)\n", err);
set_last_error( err );
goto fail;
}
TRACE("established SSL connection\n");
conn->secure = TRUE;
return TRUE;
fail:
if (conn->ssl_conn)
{
pSSL_shutdown( conn->ssl_conn );
pSSL_free( conn->ssl_conn );
conn->ssl_conn = NULL;
}
#endif
return FALSE;
}
BOOL netconn_send( netconn_t *conn, const void *msg, size_t len, int flags, int *sent )
{
if (!netconn_connected( conn )) return FALSE;
if (conn->secure)
{
#ifdef SONAME_LIBSSL
if (flags) FIXME("SSL_write doesn't support any flags (%08x)\n", flags);
*sent = pSSL_write( conn->ssl_conn, msg, len );
if (*sent < 1 && len) return FALSE;
return TRUE;
#else
return FALSE;
#endif
}
if ((*sent = send( conn->socket, msg, len, flags )) == -1)
{
set_last_error( sock_get_error( errno ) );
return FALSE;
}
return TRUE;
}
BOOL netconn_recv( netconn_t *conn, void *buf, size_t len, int flags, int *recvd )
{
*recvd = 0;
if (!netconn_connected( conn )) return FALSE;
if (!len) return TRUE;
if (conn->secure)
{
#ifdef SONAME_LIBSSL
int ret;
if (flags & ~(MSG_PEEK | MSG_WAITALL))
FIXME("SSL_read does not support the following flags: %08x\n", flags);
/* this ugly hack is all for MSG_PEEK */
if (flags & MSG_PEEK && !conn->peek_msg)
{
if (!(conn->peek_msg = conn->peek_msg_mem = heap_alloc( len + 1 ))) return FALSE;
}
else if (flags & MSG_PEEK && conn->peek_msg)
{
if (len < conn->peek_len) FIXME("buffer isn't big enough, should we wrap?\n");
*recvd = min( len, conn->peek_len );
memcpy( buf, conn->peek_msg, *recvd );
return TRUE;
}
else if (conn->peek_msg)
{
*recvd = min( len, conn->peek_len );
memcpy( buf, conn->peek_msg, *recvd );
conn->peek_len -= *recvd;
conn->peek_msg += *recvd;
if (conn->peek_len == 0)
{
heap_free( conn->peek_msg_mem );
conn->peek_msg_mem = NULL;
conn->peek_msg = NULL;
}
/* check if we have enough data from the peek buffer */
if (!(flags & MSG_WAITALL) || (*recvd == len)) return TRUE;
}
ret = pSSL_read( conn->ssl_conn, (char *)buf + *recvd, len - *recvd );
if (ret < 0)
return FALSE;
/* check if EOF was received */
if (!ret && (pSSL_get_error( conn->ssl_conn, ret ) == SSL_ERROR_ZERO_RETURN ||
pSSL_get_error( conn->ssl_conn, ret ) == SSL_ERROR_SYSCALL ))
{
netconn_close( conn );
return TRUE;
}
if (flags & MSG_PEEK) /* must copy into buffer */
{
conn->peek_len = ret;
if (!ret)
{
heap_free( conn->peek_msg_mem );
conn->peek_msg_mem = NULL;
conn->peek_msg = NULL;
}
else memcpy( conn->peek_msg, buf, ret );
}
*recvd += ret;
return TRUE;
#else
return FALSE;
#endif
}
if ((*recvd = recv( conn->socket, buf, len, flags )) == -1)
{
set_last_error( sock_get_error( errno ) );
return FALSE;
}
return TRUE;
}
BOOL netconn_query_data_available( netconn_t *conn, DWORD *available )
{
#ifdef FIONREAD
int ret, unread;
#endif
*available = 0;
if (!netconn_connected( conn )) return FALSE;
if (conn->secure)
{
#ifdef SONAME_LIBSSL
*available = pSSL_pending( conn->ssl_conn ) + conn->peek_len;
#endif
return TRUE;
}
#ifdef FIONREAD
if (!(ret = ioctlsocket( conn->socket, FIONREAD, &unread ))) *available = unread;
#endif
return TRUE;
}
BOOL netconn_get_next_line( netconn_t *conn, char *buffer, DWORD *buflen )
{
struct pollfd pfd;
BOOL ret = FALSE;
DWORD recvd = 0;
if (!netconn_connected( conn )) return FALSE;
if (conn->secure)
{
#ifdef SONAME_LIBSSL
while (recvd < *buflen)
{
int dummy;
if (!netconn_recv( conn, &buffer[recvd], 1, 0, &dummy ))
{
set_last_error( ERROR_CONNECTION_ABORTED );
break;
}
if (buffer[recvd] == '\n')
{
ret = TRUE;
break;
}
if (buffer[recvd] != '\r') recvd++;
}
if (ret)
{
buffer[recvd++] = 0;
*buflen = recvd;
TRACE("received line %s\n", debugstr_a(buffer));
}
return ret;
#else
return FALSE;
#endif
}
pfd.fd = conn->socket;
pfd.events = POLLIN;
while (recvd < *buflen)
{
int timeout, res;
struct timeval tv;
socklen_t len = sizeof(tv);
if ((res = getsockopt( conn->socket, SOL_SOCKET, SO_RCVTIMEO, (void*)&tv, &len ) != -1))
timeout = tv.tv_sec * 1000 + tv.tv_usec / 1000;
else
timeout = -1;
if (poll( &pfd, 1, timeout ) > 0)
{
if ((res = recv( conn->socket, &buffer[recvd], 1, 0 )) <= 0)
{
if (res == -1) set_last_error( sock_get_error( errno ) );
break;
}
if (buffer[recvd] == '\n')
{
ret = TRUE;
break;
}
if (buffer[recvd] != '\r') recvd++;
}
else
{
set_last_error( ERROR_WINHTTP_TIMEOUT );
break;
}
}
if (ret)
{
buffer[recvd++] = 0;
*buflen = recvd;
TRACE("received line %s\n", debugstr_a(buffer));
}
return ret;
}
DWORD netconn_set_timeout( netconn_t *netconn, BOOL send, int value )
{
int res;
struct timeval tv;
/* value is in milliseconds, convert to struct timeval */
tv.tv_sec = value / 1000;
tv.tv_usec = (value % 1000) * 1000;
if ((res = setsockopt( netconn->socket, SOL_SOCKET, send ? SO_SNDTIMEO : SO_RCVTIMEO, (void*)&tv, sizeof(tv) ) == -1))
{
WARN("setsockopt failed (%s)\n", strerror( errno ));
return sock_get_error( errno );
}
return ERROR_SUCCESS;
}
static DWORD resolve_hostname( WCHAR *hostnameW, INTERNET_PORT port, struct sockaddr *sa, socklen_t *sa_len )
{
char *hostname;
#ifdef HAVE_GETADDRINFO
struct addrinfo *res, hints;
int ret;
#else
struct hostent *he;
struct sockaddr_in *sin = (struct sockaddr_in *)sa;
#endif
if (!(hostname = strdupWA( hostnameW ))) return ERROR_OUTOFMEMORY;
#ifdef HAVE_GETADDRINFO
memset( &hints, 0, sizeof(struct addrinfo) );
/* Prefer IPv4 to IPv6 addresses, since some web servers do not listen on
* their IPv6 addresses even though they have IPv6 addresses in the DNS.
*/
hints.ai_family = AF_INET;
ret = getaddrinfo( hostname, NULL, &hints, &res );
if (ret != 0)
{
TRACE("failed to get IPv4 address of %s (%s), retrying with IPv6\n", debugstr_w(hostnameW), gai_strerror(ret));
hints.ai_family = AF_INET6;
ret = getaddrinfo( hostname, NULL, &hints, &res );
if (ret != 0)
{
TRACE("failed to get address of %s (%s)\n", debugstr_w(hostnameW), gai_strerror(ret));
heap_free( hostname );
return ERROR_WINHTTP_NAME_NOT_RESOLVED;
}
}
heap_free( hostname );
if (*sa_len < res->ai_addrlen)
{
WARN("address too small\n");
freeaddrinfo( res );
return ERROR_WINHTTP_NAME_NOT_RESOLVED;
}
*sa_len = res->ai_addrlen;
memcpy( sa, res->ai_addr, res->ai_addrlen );
/* Copy port */
switch (res->ai_family)
{
case AF_INET:
((struct sockaddr_in *)sa)->sin_port = htons( port );
break;
case AF_INET6:
((struct sockaddr_in6 *)sa)->sin6_port = htons( port );
break;
}
freeaddrinfo( res );
return ERROR_SUCCESS;
#else
EnterCriticalSection( &cs_gethostbyname );
he = gethostbyname( hostname );
heap_free( hostname );
if (!he)
{
TRACE("failed to get address of %s (%d)\n", debugstr_w(hostnameW), h_errno);
LeaveCriticalSection( &cs_gethostbyname );
return ERROR_WINHTTP_NAME_NOT_RESOLVED;
}
if (*sa_len < sizeof(struct sockaddr_in))
{
WARN("address too small\n");
LeaveCriticalSection( &cs_gethostbyname );
return ERROR_WINHTTP_NAME_NOT_RESOLVED;
}
*sa_len = sizeof(struct sockaddr_in);
memset( sa, 0, sizeof(struct sockaddr_in) );
memcpy( &sin->sin_addr, he->h_addr, he->h_length );
sin->sin_family = he->h_addrtype;
sin->sin_port = htons( port );
LeaveCriticalSection( &cs_gethostbyname );
return ERROR_SUCCESS;
#endif
}
struct resolve_args
{
WCHAR *hostname;
INTERNET_PORT port;
struct sockaddr *sa;
socklen_t *sa_len;
};
static DWORD CALLBACK resolve_proc( LPVOID arg )
{
struct resolve_args *ra = arg;
return resolve_hostname( ra->hostname, ra->port, ra->sa, ra->sa_len );
}
BOOL netconn_resolve( WCHAR *hostname, INTERNET_PORT port, struct sockaddr *sa, socklen_t *sa_len, int timeout )
{
DWORD ret;
if (timeout)
{
DWORD status;
HANDLE thread;
struct resolve_args ra;
ra.hostname = hostname;
ra.port = port;
ra.sa = sa;
ra.sa_len = sa_len;
thread = CreateThread( NULL, 0, resolve_proc, &ra, 0, NULL );
if (!thread) return FALSE;
status = WaitForSingleObject( thread, timeout );
if (status == WAIT_OBJECT_0) GetExitCodeThread( thread, &ret );
else ret = ERROR_WINHTTP_TIMEOUT;
CloseHandle( thread );
}
else ret = resolve_hostname( hostname, port, sa, sa_len );
if (ret)
{
set_last_error( ret );
return FALSE;
}
return TRUE;
}
const void *netconn_get_certificate( netconn_t *conn )
{
#ifdef SONAME_LIBSSL
X509 *cert;
const CERT_CONTEXT *ret;
if (!conn->secure) return NULL;
if (!(cert = pSSL_get_peer_certificate( conn->ssl_conn ))) return NULL;
ret = X509_to_cert_context( cert );
return ret;
#else
return NULL;
#endif
}
int netconn_get_cipher_strength( netconn_t *conn )
{
#ifdef SONAME_LIBSSL
#if defined(OPENSSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER >= 0x0090707f)
const SSL_CIPHER *cipher;
#else
SSL_CIPHER *cipher;
#endif
int bits = 0;
if (!conn->secure) return 0;
if (!(cipher = pSSL_get_current_cipher( conn->ssl_conn ))) return 0;
pSSL_CIPHER_get_bits( cipher, &bits );
return bits;
#else
return 0;
#endif
}
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