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wine/dlls/wininet/netconnection.c

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/*
* Wininet - networking layer. Uses unix sockets or OpenSSL.
*
* Copyright 2002 TransGaming Technologies Inc.
*
* David Hammerton
*
* 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"
#define NONAMELESSUNION
#if defined(__MINGW32__) || defined (_MSC_VER)
#include <ws2tcpip.h>
#endif
#include <sys/types.h>
#ifdef HAVE_POLL_H
#include <poll.h>
#endif
#ifdef HAVE_SYS_POLL_H
# include <sys/poll.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_SYS_FILIO_H
# include <sys/filio.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#include <time.h>
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_OPENSSL_SSL_H
# include <openssl/ssl.h>
# include <openssl/opensslv.h>
#undef FAR
#undef DSA
#endif
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include "wine/library.h"
#include "windef.h"
#include "winbase.h"
#include "wininet.h"
#include "winerror.h"
#include "wincrypt.h"
#include "wine/debug.h"
#include "internet.h"
/* To avoid conflicts with the Unix socket headers. we only need it for
* the error codes anyway. */
#define USE_WS_PREFIX
#include "winsock2.h"
#define RESPONSE_TIMEOUT 30 /* FROM internet.c */
WINE_DEFAULT_DEBUG_CHANNEL(wininet);
/* FIXME!!!!!!
* This should use winsock - To use winsock the functions will have to change a bit
* as they are designed for unix sockets.
* SSL stuff should use crypt32.dll
*/
#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 *OpenSSL_ssl_handle;
static void *OpenSSL_crypto_handle;
#if defined(OPENSSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER > 0x10000000)
static const SSL_METHOD *meth;
#else
static SSL_METHOD *meth;
#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
/* OpenSSL functions that we use */
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_get_timeout);
MAKE_FUNCPTR(SSL_CTX_set_timeout);
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);
/* OpenSSL's libcrypto functions that we use */
MAKE_FUNCPTR(BIO_new_fp);
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(i2d_X509);
MAKE_FUNCPTR(sk_num);
MAKE_FUNCPTR(sk_value);
#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]);
}
static PCCERT_CONTEXT X509_to_cert_context(X509 *cert)
{
unsigned char* buffer,*p;
INT len;
BOOL malloced = FALSE;
PCCERT_CONTEXT ret;
p = NULL;
len = pi2d_X509(cert,&p);
/*
* 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)
{
buffer = HeapAlloc(GetProcessHeap(),0,len);
p = buffer;
len = pi2d_X509(cert,&p);
}
else
{
buffer = p;
malloced = TRUE;
}
ret = CertCreateCertificateContext(X509_ASN_ENCODING,buffer,len);
if (malloced)
free(buffer);
else
HeapFree(GetProcessHeap(),0,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, chainFlags = 0;
TRACE("verifying %s\n", debugstr_w(server));
chainPara.RequestedUsage.Usage.cUsageIdentifier = 1;
chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = server_auth;
if (!(security_flags & SECURITY_FLAG_IGNORE_REVOCATION))
chainFlags |= CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT;
if ((ret = CertGetCertificateChain(NULL, cert, NULL, store, &chainPara,
chainFlags, NULL, &chain)))
{
if (chain->TrustStatus.dwErrorStatus)
{
static const DWORD supportedErrors =
CERT_TRUST_IS_NOT_TIME_VALID |
CERT_TRUST_IS_UNTRUSTED_ROOT |
CERT_TRUST_IS_OFFLINE_REVOCATION |
CERT_TRUST_REVOCATION_STATUS_UNKNOWN |
CERT_TRUST_IS_REVOKED |
CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_NOT_TIME_VALID &&
!(security_flags & SECURITY_FLAG_IGNORE_CERT_DATE_INVALID))
err = ERROR_INTERNET_SEC_CERT_DATE_INVALID;
else if (chain->TrustStatus.dwErrorStatus &
CERT_TRUST_IS_UNTRUSTED_ROOT &&
!(security_flags & SECURITY_FLAG_IGNORE_UNKNOWN_CA))
err = ERROR_INTERNET_INVALID_CA;
else if (!(security_flags & SECURITY_FLAG_IGNORE_REVOCATION) &&
((chain->TrustStatus.dwErrorStatus &
CERT_TRUST_IS_OFFLINE_REVOCATION) ||
(chain->TrustStatus.dwErrorStatus &
CERT_TRUST_REVOCATION_STATUS_UNKNOWN)))
err = ERROR_INTERNET_SEC_CERT_NO_REV;
else if (!(security_flags & SECURITY_FLAG_IGNORE_REVOCATION) &&
(chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_REVOKED))
err = ERROR_INTERNET_SEC_CERT_REVOKED;
else if (!(security_flags & SECURITY_FLAG_IGNORE_WRONG_USAGE) &&
(chain->TrustStatus.dwErrorStatus &
CERT_TRUST_IS_NOT_VALID_FOR_USAGE))
err = ERROR_INTERNET_SEC_INVALID_CERT;
else if (chain->TrustStatus.dwErrorStatus & ~supportedErrors)
err = ERROR_INTERNET_SEC_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_INTERNET_SEC_CERT_CN_INVALID;
else
err = ERROR_INTERNET_SEC_INVALID_CERT;
}
}
CertFreeCertificateChain(chain);
}
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;
HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
CERT_STORE_CREATE_NEW_FLAG, NULL);
WININET_NETCONNECTION *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 (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;
}
#endif
DWORD NETCON_init(WININET_NETCONNECTION *connection, BOOL useSSL)
{
connection->useSSL = FALSE;
connection->socketFD = -1;
if (useSSL)
{
#if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
int i;
TRACE("using SSL connection\n");
EnterCriticalSection(&init_ssl_cs);
if (OpenSSL_ssl_handle) /* already initialized everything */
{
LeaveCriticalSection(&init_ssl_cs);
return ERROR_SUCCESS;
}
OpenSSL_ssl_handle = wine_dlopen(SONAME_LIBSSL, RTLD_NOW, NULL, 0);
if (!OpenSSL_ssl_handle)
{
ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n",
SONAME_LIBSSL);
LeaveCriticalSection(&init_ssl_cs);
return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
}
OpenSSL_crypto_handle = wine_dlopen(SONAME_LIBCRYPTO, RTLD_NOW, NULL, 0);
if (!OpenSSL_crypto_handle)
{
ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n",
SONAME_LIBCRYPTO);
LeaveCriticalSection(&init_ssl_cs);
return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
}
/* mmm nice ugly macroness */
#define DYNSSL(x) \
p##x = wine_dlsym(OpenSSL_ssl_handle, #x, NULL, 0); \
if (!p##x) \
{ \
ERR("failed to load symbol %s\n", #x); \
LeaveCriticalSection(&init_ssl_cs); \
return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; \
}
DYNSSL(SSL_library_init);
DYNSSL(SSL_load_error_strings);
DYNSSL(SSLv23_method);
DYNSSL(SSL_CTX_free);
DYNSSL(SSL_CTX_new);
DYNSSL(SSL_new);
DYNSSL(SSL_free);
DYNSSL(SSL_set_fd);
DYNSSL(SSL_connect);
DYNSSL(SSL_shutdown);
DYNSSL(SSL_write);
DYNSSL(SSL_read);
DYNSSL(SSL_pending);
DYNSSL(SSL_get_error);
DYNSSL(SSL_get_ex_new_index);
DYNSSL(SSL_get_ex_data);
DYNSSL(SSL_set_ex_data);
DYNSSL(SSL_get_ex_data_X509_STORE_CTX_idx);
DYNSSL(SSL_get_peer_certificate);
DYNSSL(SSL_CTX_get_timeout);
DYNSSL(SSL_CTX_set_timeout);
DYNSSL(SSL_CTX_set_default_verify_paths);
DYNSSL(SSL_CTX_set_verify);
DYNSSL(SSL_get_current_cipher);
DYNSSL(SSL_CIPHER_get_bits);
#undef DYNSSL
#define DYNCRYPTO(x) \
p##x = wine_dlsym(OpenSSL_crypto_handle, #x, NULL, 0); \
if (!p##x) \
{ \
ERR("failed to load symbol %s\n", #x); \
LeaveCriticalSection(&init_ssl_cs); \
return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; \
}
DYNCRYPTO(BIO_new_fp);
DYNCRYPTO(CRYPTO_num_locks);
DYNCRYPTO(CRYPTO_set_id_callback);
DYNCRYPTO(CRYPTO_set_locking_callback);
DYNCRYPTO(ERR_free_strings);
DYNCRYPTO(ERR_get_error);
DYNCRYPTO(ERR_error_string);
DYNCRYPTO(X509_STORE_CTX_get_ex_data);
DYNCRYPTO(i2d_X509);
DYNCRYPTO(sk_num);
DYNCRYPTO(sk_value);
#undef DYNCRYPTO
pSSL_library_init();
pSSL_load_error_strings();
pBIO_new_fp(stderr, BIO_NOCLOSE); /* FIXME: should use winedebug stuff */
meth = pSSLv23_method();
ctx = pSSL_CTX_new(meth);
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));
LeaveCriticalSection(&init_ssl_cs);
return ERROR_OUTOFMEMORY;
}
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));
LeaveCriticalSection(&init_ssl_cs);
return ERROR_OUTOFMEMORY;
}
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));
LeaveCriticalSection(&init_ssl_cs);
return ERROR_OUTOFMEMORY;
}
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));
LeaveCriticalSection(&init_ssl_cs);
return ERROR_OUTOFMEMORY;
}
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 = HeapAlloc(GetProcessHeap(), 0, num_ssl_locks * sizeof(CRITICAL_SECTION));
if (!ssl_locks)
{
LeaveCriticalSection(&init_ssl_cs);
return ERROR_OUTOFMEMORY;
}
for (i = 0; i < num_ssl_locks; i++)
InitializeCriticalSection(&ssl_locks[i]);
pCRYPTO_set_locking_callback(ssl_lock_callback);
LeaveCriticalSection(&init_ssl_cs);
#else
FIXME("can't use SSL, not compiled in.\n");
return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
#endif
}
return ERROR_SUCCESS;
}
void NETCON_unload(void)
{
#if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
if (OpenSSL_crypto_handle)
{
pERR_free_strings();
wine_dlclose(OpenSSL_crypto_handle, NULL, 0);
}
if (OpenSSL_ssl_handle)
{
if (ctx)
pSSL_CTX_free(ctx);
wine_dlclose(OpenSSL_ssl_handle, NULL, 0);
}
if (ssl_locks)
{
int i;
for (i = 0; i < num_ssl_locks; i++) DeleteCriticalSection(&ssl_locks[i]);
HeapFree(GetProcessHeap(), 0, ssl_locks);
}
#endif
}
BOOL NETCON_connected(WININET_NETCONNECTION *connection)
{
if (connection->socketFD == -1)
return FALSE;
else
return TRUE;
}
/* translate a unix error code into a winsock one */
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;
}
/******************************************************************************
* NETCON_create
* Basically calls 'socket()'
*/
DWORD NETCON_create(WININET_NETCONNECTION *connection, int domain,
int type, int protocol)
{
#ifdef SONAME_LIBSSL
if (connection->useSSL)
return ERROR_NOT_SUPPORTED;
#endif
connection->socketFD = socket(domain, type, protocol);
if (connection->socketFD == -1)
return sock_get_error(errno);
return ERROR_SUCCESS;
}
/******************************************************************************
* NETCON_close
* Basically calls 'close()' unless we should use SSL
*/
DWORD NETCON_close(WININET_NETCONNECTION *connection)
{
int result;
if (!NETCON_connected(connection)) return ERROR_SUCCESS;
#ifdef SONAME_LIBSSL
if (connection->useSSL)
{
pSSL_shutdown(connection->ssl_s);
pSSL_free(connection->ssl_s);
connection->ssl_s = NULL;
connection->useSSL = FALSE;
}
#endif
result = closesocket(connection->socketFD);
connection->socketFD = -1;
if (result == -1)
return sock_get_error(errno);
return ERROR_SUCCESS;
}
/******************************************************************************
* NETCON_secure_connect
* Initiates a secure connection over an existing plaintext connection.
*/
DWORD NETCON_secure_connect(WININET_NETCONNECTION *connection, LPWSTR hostname)
{
DWORD res = ERROR_NOT_SUPPORTED;
#ifdef SONAME_LIBSSL
/* can't connect if we are already connected */
if (connection->useSSL)
{
ERR("already connected\n");
return ERROR_INTERNET_CANNOT_CONNECT;
}
connection->ssl_s = pSSL_new(ctx);
if (!connection->ssl_s)
{
ERR("SSL_new failed: %s\n",
pERR_error_string(pERR_get_error(), 0));
res = ERROR_OUTOFMEMORY;
goto fail;
}
if (!pSSL_set_fd(connection->ssl_s, connection->socketFD))
{
ERR("SSL_set_fd failed: %s\n",
pERR_error_string(pERR_get_error(), 0));
res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
goto fail;
}
if (!pSSL_set_ex_data(connection->ssl_s, hostname_idx, hostname))
{
ERR("SSL_set_ex_data failed: %s\n",
pERR_error_string(pERR_get_error(), 0));
res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
goto fail;
}
if (!pSSL_set_ex_data(connection->ssl_s, conn_idx, connection))
{
ERR("SSL_set_ex_data failed: %s\n",
pERR_error_string(pERR_get_error(), 0));
res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
goto fail;
}
if (pSSL_connect(connection->ssl_s) <= 0)
{
res = (DWORD_PTR)pSSL_get_ex_data(connection->ssl_s, error_idx);
if (!res)
res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
ERR("SSL_connect failed: %d\n", res);
goto fail;
}
connection->useSSL = TRUE;
return ERROR_SUCCESS;
fail:
if (connection->ssl_s)
{
pSSL_shutdown(connection->ssl_s);
pSSL_free(connection->ssl_s);
connection->ssl_s = NULL;
}
#endif
return res;
}
/******************************************************************************
* NETCON_connect
* Connects to the specified address.
*/
DWORD NETCON_connect(WININET_NETCONNECTION *connection, const struct sockaddr *serv_addr,
unsigned int addrlen)
{
int result;
result = connect(connection->socketFD, serv_addr, addrlen);
if (result == -1)
{
WARN("Unable to connect to host (%s)\n", strerror(errno));
closesocket(connection->socketFD);
connection->socketFD = -1;
return sock_get_error(errno);
}
return ERROR_SUCCESS;
}
/******************************************************************************
* NETCON_send
* Basically calls 'send()' unless we should use SSL
* number of chars send is put in *sent
*/
DWORD NETCON_send(WININET_NETCONNECTION *connection, const void *msg, size_t len, int flags,
int *sent /* out */)
{
if (!NETCON_connected(connection)) return ERROR_INTERNET_CONNECTION_ABORTED;
if (!connection->useSSL)
{
*sent = send(connection->socketFD, msg, len, flags);
if (*sent == -1)
return sock_get_error(errno);
return ERROR_SUCCESS;
}
else
{
#ifdef SONAME_LIBSSL
if (flags)
FIXME("SSL_write doesn't support any flags (%08x)\n", flags);
*sent = pSSL_write(connection->ssl_s, msg, len);
if (*sent < 1 && len)
return ERROR_INTERNET_CONNECTION_ABORTED;
return ERROR_SUCCESS;
#else
return ERROR_NOT_SUPPORTED;
#endif
}
}
/******************************************************************************
* NETCON_recv
* Basically calls 'recv()' unless we should use SSL
* number of chars received is put in *recvd
*/
DWORD NETCON_recv(WININET_NETCONNECTION *connection, void *buf, size_t len, int flags,
int *recvd /* out */)
{
*recvd = 0;
if (!NETCON_connected(connection)) return ERROR_INTERNET_CONNECTION_ABORTED;
if (!len)
return ERROR_SUCCESS;
if (!connection->useSSL)
{
*recvd = recv(connection->socketFD, buf, len, flags);
if(!*recvd)
NETCON_close(connection);
return *recvd == -1 ? sock_get_error(errno) : ERROR_SUCCESS;
}
else
{
#ifdef SONAME_LIBSSL
*recvd = pSSL_read(connection->ssl_s, buf, len);
/* Check if EOF was received */
if(!*recvd && (pSSL_get_error(connection->ssl_s, *recvd)==SSL_ERROR_ZERO_RETURN
|| pSSL_get_error(connection->ssl_s, *recvd)==SSL_ERROR_SYSCALL)) {
NETCON_close(connection);
return ERROR_SUCCESS;
}
return *recvd > 0 ? ERROR_SUCCESS : ERROR_INTERNET_CONNECTION_ABORTED;
#else
return ERROR_NOT_SUPPORTED;
#endif
}
}
/******************************************************************************
* NETCON_query_data_available
* Returns the number of bytes of peeked data plus the number of bytes of
* queued, but unread data.
*/
BOOL NETCON_query_data_available(WININET_NETCONNECTION *connection, DWORD *available)
{
*available = 0;
if (!NETCON_connected(connection))
return FALSE;
if (!connection->useSSL)
{
#ifdef FIONREAD
int unread;
int retval = ioctlsocket(connection->socketFD, FIONREAD, &unread);
if (!retval)
{
TRACE("%d bytes of queued, but unread data\n", unread);
*available += unread;
}
#endif
}
else
{
#ifdef SONAME_LIBSSL
*available = pSSL_pending(connection->ssl_s);
#endif
}
return TRUE;
}
LPCVOID NETCON_GetCert(WININET_NETCONNECTION *connection)
{
#ifdef SONAME_LIBSSL
X509* cert;
LPCVOID r = NULL;
if (!connection->useSSL)
return NULL;
cert = pSSL_get_peer_certificate(connection->ssl_s);
r = X509_to_cert_context(cert);
return r;
#else
return NULL;
#endif
}
int NETCON_GetCipherStrength(WININET_NETCONNECTION *connection)
{
#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 (!connection->useSSL)
return 0;
cipher = pSSL_get_current_cipher(connection->ssl_s);
if (!cipher)
return 0;
pSSL_CIPHER_get_bits(cipher, &bits);
return bits;
#else
return 0;
#endif
}
DWORD NETCON_set_timeout(WININET_NETCONNECTION *connection, BOOL send, int value)
{
int result;
struct timeval tv;
/* FIXME: we should probably store the timeout in the connection to set
* when we do connect */
if (!NETCON_connected(connection))
return ERROR_SUCCESS;
/* value is in milliseconds, convert to struct timeval */
tv.tv_sec = value / 1000;
tv.tv_usec = (value % 1000) * 1000;
result = setsockopt(connection->socketFD, SOL_SOCKET,
send ? SO_SNDTIMEO : SO_RCVTIMEO, (void*)&tv,
sizeof(tv));
if (result == -1)
{
WARN("setsockopt failed (%s)\n", strerror(errno));
return sock_get_error(errno);
}
return ERROR_SUCCESS;
}
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