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wine/dlls/winhttp/net.c

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/*
* Copyright 2008 Hans Leidekker for CodeWeavers
* Copyright 2013 Jacek Caban 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 <assert.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
#define NONAMELESSUNION
#include "wine/debug.h"
#include "wine/library.h"
#include "windef.h"
#include "winbase.h"
#include "winhttp.h"
#include "wincrypt.h"
#include "schannel.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
/* 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;
}
static DWORD netconn_verify_cert( PCCERT_CONTEXT cert, WCHAR *server, DWORD security_flags )
{
HCERTSTORE store = cert->hCertStore;
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 SecHandle cred_handle;
static BOOL cred_handle_initialized;
static CRITICAL_SECTION init_sechandle_cs;
static CRITICAL_SECTION_DEBUG init_sechandle_cs_debug = {
0, 0, &init_sechandle_cs,
{ &init_sechandle_cs_debug.ProcessLocksList,
&init_sechandle_cs_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": init_sechandle_cs") }
};
static CRITICAL_SECTION init_sechandle_cs = { &init_sechandle_cs_debug, -1, 0, 0, 0, 0 };
static BOOL ensure_cred_handle(void)
{
BOOL ret = TRUE;
EnterCriticalSection(&init_sechandle_cs);
if(!cred_handle_initialized) {
SECURITY_STATUS res;
res = AcquireCredentialsHandleW(NULL, (WCHAR*)UNISP_NAME_W, SECPKG_CRED_OUTBOUND, NULL, NULL,
NULL, NULL, &cred_handle, NULL);
if(res == SEC_E_OK) {
cred_handle_initialized = TRUE;
}else {
WARN("AcquireCredentialsHandleW failed: %u\n", res);
ret = FALSE;
}
}
LeaveCriticalSection(&init_sechandle_cs);
return ret;
}
BOOL netconn_init( netconn_t *conn )
{
memset(conn, 0, sizeof(*conn));
conn->socket = -1;
return TRUE;
}
void netconn_unload( void )
{
if(cred_handle_initialized)
FreeCredentialsHandle(&cred_handle);
DeleteCriticalSection(&init_sechandle_cs);
#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;
if (conn->secure)
{
heap_free( conn->peek_msg_mem );
conn->peek_msg_mem = NULL;
conn->peek_msg = NULL;
conn->peek_len = 0;
heap_free(conn->ssl_buf);
conn->ssl_buf = NULL;
heap_free(conn->extra_buf);
conn->extra_buf = NULL;
conn->extra_len = 0;
DeleteSecurityContext(&conn->ssl_ctx);
conn->secure = FALSE;
}
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;
ULONG 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 )
{
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 = send(conn->socket, out_buf.pvBuffer, out_buf.cbBuffer, 0);
if(size != out_buf.cbBuffer) {
ERR("send failed\n");
status = 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 = 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;
}
}
}
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;
}
static BOOL send_ssl_chunk(netconn_t *conn, const void *msg, size_t size)
{
SecBuffer bufs[4] = {
{conn->ssl_sizes.cbHeader, SECBUFFER_STREAM_HEADER, conn->ssl_buf},
{size, SECBUFFER_DATA, conn->ssl_buf+conn->ssl_sizes.cbHeader},
{conn->ssl_sizes.cbTrailer, SECBUFFER_STREAM_TRAILER, conn->ssl_buf+conn->ssl_sizes.cbHeader+size},
{0, SECBUFFER_EMPTY, NULL}
};
SecBufferDesc buf_desc = {SECBUFFER_VERSION, sizeof(bufs)/sizeof(*bufs), bufs};
SECURITY_STATUS res;
memcpy(bufs[1].pvBuffer, msg, size);
res = EncryptMessage(&conn->ssl_ctx, 0, &buf_desc, 0);
if(res != SEC_E_OK) {
WARN("EncryptMessage failed\n");
return FALSE;
}
if(send(conn->socket, conn->ssl_buf, bufs[0].cbBuffer+bufs[1].cbBuffer+bufs[2].cbBuffer, 0) < 1) {
WARN("send failed\n");
return FALSE;
}
return TRUE;
}
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)
{
const BYTE *ptr = msg;
size_t chunk_size;
if (flags) FIXME("flags %08x not supported in SSL\n", flags);
*sent = 0;
while(len) {
chunk_size = min(len, conn->ssl_sizes.cbMaximumMessage);
if(!send_ssl_chunk(conn, ptr, chunk_size))
return FALSE;
*sent += chunk_size;
ptr += chunk_size;
len -= chunk_size;
}
return TRUE;
}
if ((*sent = send( conn->socket, msg, len, flags )) == -1)
{
set_last_error( sock_get_error( errno ) );
return FALSE;
}
return TRUE;
}
static BOOL read_ssl_chunk(netconn_t *conn, void *buf, SIZE_T buf_size, SIZE_T *ret_size, BOOL *eof)
{
const SIZE_T ssl_buf_size = conn->ssl_sizes.cbHeader+conn->ssl_sizes.cbMaximumMessage+conn->ssl_sizes.cbTrailer;
SecBuffer bufs[4];
SecBufferDesc buf_desc = {SECBUFFER_VERSION, sizeof(bufs)/sizeof(*bufs), bufs};
SSIZE_T size, buf_len;
unsigned int i;
SECURITY_STATUS res;
assert(conn->extra_len < ssl_buf_size);
if(conn->extra_len) {
memcpy(conn->ssl_buf, conn->extra_buf, conn->extra_len);
buf_len = conn->extra_len;
conn->extra_len = 0;
heap_free(conn->extra_buf);
conn->extra_buf = NULL;
}else {
buf_len = recv(conn->socket, conn->ssl_buf+conn->extra_len, ssl_buf_size-conn->extra_len, 0);
if(buf_len < 0) {
WARN("recv failed\n");
return FALSE;
}
if(!buf_len) {
*eof = TRUE;
return TRUE;
}
}
*ret_size = 0;
*eof = FALSE;
do {
memset(bufs, 0, sizeof(bufs));
bufs[0].BufferType = SECBUFFER_DATA;
bufs[0].cbBuffer = buf_len;
bufs[0].pvBuffer = conn->ssl_buf;
res = DecryptMessage(&conn->ssl_ctx, &buf_desc, 0, NULL);
switch(res) {
case SEC_E_OK:
break;
case SEC_I_CONTEXT_EXPIRED:
TRACE("context expired\n");
*eof = TRUE;
return TRUE;
case SEC_E_INCOMPLETE_MESSAGE:
assert(buf_len < ssl_buf_size);
size = recv(conn->socket, conn->ssl_buf+buf_len, ssl_buf_size-buf_len, 0);
if(size < 1)
return FALSE;
buf_len += size;
continue;
default:
WARN("failed: %08x\n", res);
return FALSE;
}
} while(res != SEC_E_OK);
for(i=0; i < sizeof(bufs)/sizeof(*bufs); i++) {
if(bufs[i].BufferType == SECBUFFER_DATA) {
size = min(buf_size, bufs[i].cbBuffer);
memcpy(buf, bufs[i].pvBuffer, size);
if(size < bufs[i].cbBuffer) {
assert(!conn->peek_len);
conn->peek_msg_mem = conn->peek_msg = heap_alloc(bufs[i].cbBuffer - size);
if(!conn->peek_msg)
return FALSE;
conn->peek_len = bufs[i].cbBuffer-size;
memcpy(conn->peek_msg, (char*)bufs[i].pvBuffer+size, conn->peek_len);
}
*ret_size = size;
}
}
for(i=0; i < sizeof(bufs)/sizeof(*bufs); i++) {
if(bufs[i].BufferType == SECBUFFER_EXTRA) {
conn->extra_buf = heap_alloc(bufs[i].cbBuffer);
if(!conn->extra_buf)
return FALSE;
conn->extra_len = bufs[i].cbBuffer;
memcpy(conn->extra_buf, bufs[i].pvBuffer, conn->extra_len);
}
}
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)
{
SIZE_T size, cread;
BOOL res, eof;
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;
}
size = *recvd;
do {
res = read_ssl_chunk(conn, (BYTE*)buf+size, len-size, &cread, &eof);
if(!res) {
WARN("read_ssl_chunk failed\n");
if(!size)
return FALSE;
break;
}
if(eof) {
TRACE("EOF\n");
break;
}
size += cread;
}while(!size || ((flags & MSG_WAITALL) && size < len));
TRACE("received %ld bytes\n", size);
*recvd = size;
return TRUE;
}
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;
ULONG unread;
#endif
*available = 0;
if (!netconn_connected( conn )) return FALSE;
if (conn->secure)
{
*available = conn->peek_len;
return TRUE;
}
#ifdef FIONREAD
if (!(ret = ioctlsocket( conn->socket, FIONREAD, &unread ))) *available = unread;
#endif
return TRUE;
}
DWORD netconn_set_timeout( netconn_t *netconn, BOOL send, int value )
{
struct timeval tv;
/* value is in milliseconds, convert to struct timeval */
tv.tv_sec = value / 1000;
tv.tv_usec = (value % 1000) * 1000;
if (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( const 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
{
const 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 )
{
const CERT_CONTEXT *ret;
SECURITY_STATUS res;
if (!conn->secure) return NULL;
res = QueryContextAttributesW(&conn->ssl_ctx, SECPKG_ATTR_REMOTE_CERT_CONTEXT, (void*)&ret);
return res == SEC_E_OK ? ret : NULL;
}
int netconn_get_cipher_strength( netconn_t *conn )
{
SecPkgContext_ConnectionInfo conn_info;
SECURITY_STATUS res;
if (!conn->secure) return 0;
res = QueryContextAttributesW(&conn->ssl_ctx, SECPKG_ATTR_CONNECTION_INFO, (void*)&conn_info);
if(res != SEC_E_OK)
WARN("QueryContextAttributesW failed: %08x\n", res);
return res == SEC_E_OK ? conn_info.dwCipherStrength : 0;
}
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