mirror of https://github.com/proxmox/mirror_qemu
546 lines
12 KiB
C
546 lines
12 KiB
C
/*
|
|
* os-win32.c
|
|
*
|
|
* Copyright (c) 2003-2008 Fabrice Bellard
|
|
* Copyright (c) 2010-2016 Red Hat, Inc.
|
|
*
|
|
* QEMU library functions for win32 which are shared between QEMU and
|
|
* the QEMU tools.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include <windows.h>
|
|
#include "qapi/error.h"
|
|
#include "qemu/main-loop.h"
|
|
#include "trace.h"
|
|
#include "qemu/sockets.h"
|
|
#include "qemu/cutils.h"
|
|
#include "qemu/error-report.h"
|
|
#include <malloc.h>
|
|
|
|
static int get_allocation_granularity(void)
|
|
{
|
|
SYSTEM_INFO system_info;
|
|
|
|
GetSystemInfo(&system_info);
|
|
return system_info.dwAllocationGranularity;
|
|
}
|
|
|
|
void *qemu_anon_ram_alloc(size_t size, uint64_t *align, bool shared,
|
|
bool noreserve)
|
|
{
|
|
void *ptr;
|
|
|
|
if (noreserve) {
|
|
/*
|
|
* We need a MEM_COMMIT before accessing any memory in a MEM_RESERVE
|
|
* area; we cannot easily mimic POSIX MAP_NORESERVE semantics.
|
|
*/
|
|
error_report("Skipping reservation of swap space is not supported.");
|
|
return NULL;
|
|
}
|
|
|
|
ptr = VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE);
|
|
trace_qemu_anon_ram_alloc(size, ptr);
|
|
|
|
if (ptr && align) {
|
|
*align = MAX(get_allocation_granularity(), getpagesize());
|
|
}
|
|
return ptr;
|
|
}
|
|
|
|
void qemu_anon_ram_free(void *ptr, size_t size)
|
|
{
|
|
trace_qemu_anon_ram_free(ptr, size);
|
|
if (ptr) {
|
|
VirtualFree(ptr, 0, MEM_RELEASE);
|
|
}
|
|
}
|
|
|
|
#ifndef _POSIX_THREAD_SAFE_FUNCTIONS
|
|
/* FIXME: add proper locking */
|
|
struct tm *gmtime_r(const time_t *timep, struct tm *result)
|
|
{
|
|
struct tm *p = gmtime(timep);
|
|
memset(result, 0, sizeof(*result));
|
|
if (p) {
|
|
*result = *p;
|
|
p = result;
|
|
}
|
|
return p;
|
|
}
|
|
|
|
/* FIXME: add proper locking */
|
|
struct tm *localtime_r(const time_t *timep, struct tm *result)
|
|
{
|
|
struct tm *p = localtime(timep);
|
|
memset(result, 0, sizeof(*result));
|
|
if (p) {
|
|
*result = *p;
|
|
p = result;
|
|
}
|
|
return p;
|
|
}
|
|
#endif /* _POSIX_THREAD_SAFE_FUNCTIONS */
|
|
|
|
static int socket_error(void)
|
|
{
|
|
switch (WSAGetLastError()) {
|
|
case 0:
|
|
return 0;
|
|
case WSAEINTR:
|
|
return EINTR;
|
|
case WSAEINVAL:
|
|
return EINVAL;
|
|
case WSA_INVALID_HANDLE:
|
|
return EBADF;
|
|
case WSA_NOT_ENOUGH_MEMORY:
|
|
return ENOMEM;
|
|
case WSA_INVALID_PARAMETER:
|
|
return EINVAL;
|
|
case WSAENAMETOOLONG:
|
|
return ENAMETOOLONG;
|
|
case WSAENOTEMPTY:
|
|
return ENOTEMPTY;
|
|
case WSAEWOULDBLOCK:
|
|
/* not using EWOULDBLOCK as we don't want code to have
|
|
* to check both EWOULDBLOCK and EAGAIN */
|
|
return EAGAIN;
|
|
case WSAEINPROGRESS:
|
|
return EINPROGRESS;
|
|
case WSAEALREADY:
|
|
return EALREADY;
|
|
case WSAENOTSOCK:
|
|
return ENOTSOCK;
|
|
case WSAEDESTADDRREQ:
|
|
return EDESTADDRREQ;
|
|
case WSAEMSGSIZE:
|
|
return EMSGSIZE;
|
|
case WSAEPROTOTYPE:
|
|
return EPROTOTYPE;
|
|
case WSAENOPROTOOPT:
|
|
return ENOPROTOOPT;
|
|
case WSAEPROTONOSUPPORT:
|
|
return EPROTONOSUPPORT;
|
|
case WSAEOPNOTSUPP:
|
|
return EOPNOTSUPP;
|
|
case WSAEAFNOSUPPORT:
|
|
return EAFNOSUPPORT;
|
|
case WSAEADDRINUSE:
|
|
return EADDRINUSE;
|
|
case WSAEADDRNOTAVAIL:
|
|
return EADDRNOTAVAIL;
|
|
case WSAENETDOWN:
|
|
return ENETDOWN;
|
|
case WSAENETUNREACH:
|
|
return ENETUNREACH;
|
|
case WSAENETRESET:
|
|
return ENETRESET;
|
|
case WSAECONNABORTED:
|
|
return ECONNABORTED;
|
|
case WSAECONNRESET:
|
|
return ECONNRESET;
|
|
case WSAENOBUFS:
|
|
return ENOBUFS;
|
|
case WSAEISCONN:
|
|
return EISCONN;
|
|
case WSAENOTCONN:
|
|
return ENOTCONN;
|
|
case WSAETIMEDOUT:
|
|
return ETIMEDOUT;
|
|
case WSAECONNREFUSED:
|
|
return ECONNREFUSED;
|
|
case WSAELOOP:
|
|
return ELOOP;
|
|
case WSAEHOSTUNREACH:
|
|
return EHOSTUNREACH;
|
|
default:
|
|
return EIO;
|
|
}
|
|
}
|
|
|
|
void qemu_socket_set_block(int fd)
|
|
{
|
|
unsigned long opt = 0;
|
|
WSAEventSelect(fd, NULL, 0);
|
|
ioctlsocket(fd, FIONBIO, &opt);
|
|
}
|
|
|
|
int qemu_socket_try_set_nonblock(int fd)
|
|
{
|
|
unsigned long opt = 1;
|
|
if (ioctlsocket(fd, FIONBIO, &opt) != NO_ERROR) {
|
|
return -socket_error();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void qemu_socket_set_nonblock(int fd)
|
|
{
|
|
(void)qemu_socket_try_set_nonblock(fd);
|
|
}
|
|
|
|
int socket_set_fast_reuse(int fd)
|
|
{
|
|
/* Enabling the reuse of an endpoint that was used by a socket still in
|
|
* TIME_WAIT state is usually performed by setting SO_REUSEADDR. On Windows
|
|
* fast reuse is the default and SO_REUSEADDR does strange things. So we
|
|
* don't have to do anything here. More info can be found at:
|
|
* http://msdn.microsoft.com/en-us/library/windows/desktop/ms740621.aspx */
|
|
return 0;
|
|
}
|
|
|
|
int inet_aton(const char *cp, struct in_addr *ia)
|
|
{
|
|
uint32_t addr = inet_addr(cp);
|
|
if (addr == 0xffffffff) {
|
|
return 0;
|
|
}
|
|
ia->s_addr = addr;
|
|
return 1;
|
|
}
|
|
|
|
void qemu_set_cloexec(int fd)
|
|
{
|
|
}
|
|
|
|
int qemu_get_thread_id(void)
|
|
{
|
|
return GetCurrentThreadId();
|
|
}
|
|
|
|
char *
|
|
qemu_get_local_state_dir(void)
|
|
{
|
|
const char * const *data_dirs = g_get_system_data_dirs();
|
|
|
|
g_assert(data_dirs && data_dirs[0]);
|
|
|
|
return g_strdup(data_dirs[0]);
|
|
}
|
|
|
|
void qemu_set_tty_echo(int fd, bool echo)
|
|
{
|
|
HANDLE handle = (HANDLE)_get_osfhandle(fd);
|
|
DWORD dwMode = 0;
|
|
|
|
if (handle == INVALID_HANDLE_VALUE) {
|
|
return;
|
|
}
|
|
|
|
GetConsoleMode(handle, &dwMode);
|
|
|
|
if (echo) {
|
|
SetConsoleMode(handle, dwMode | ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT);
|
|
} else {
|
|
SetConsoleMode(handle,
|
|
dwMode & ~(ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT));
|
|
}
|
|
}
|
|
|
|
int getpagesize(void)
|
|
{
|
|
SYSTEM_INFO system_info;
|
|
|
|
GetSystemInfo(&system_info);
|
|
return system_info.dwPageSize;
|
|
}
|
|
|
|
void qemu_prealloc_mem(int fd, char *area, size_t sz, int max_threads,
|
|
ThreadContext *tc, Error **errp)
|
|
{
|
|
int i;
|
|
size_t pagesize = qemu_real_host_page_size();
|
|
|
|
sz = (sz + pagesize - 1) & -pagesize;
|
|
for (i = 0; i < sz / pagesize; i++) {
|
|
memset(area + pagesize * i, 0, 1);
|
|
}
|
|
}
|
|
|
|
char *qemu_get_pid_name(pid_t pid)
|
|
{
|
|
/* XXX Implement me */
|
|
abort();
|
|
}
|
|
|
|
|
|
pid_t qemu_fork(Error **errp)
|
|
{
|
|
errno = ENOSYS;
|
|
error_setg_errno(errp, errno,
|
|
"cannot fork child process");
|
|
return -1;
|
|
}
|
|
|
|
|
|
#undef connect
|
|
int qemu_connect_wrap(int sockfd, const struct sockaddr *addr,
|
|
socklen_t addrlen)
|
|
{
|
|
int ret;
|
|
ret = connect(sockfd, addr, addrlen);
|
|
if (ret < 0) {
|
|
if (WSAGetLastError() == WSAEWOULDBLOCK) {
|
|
errno = EINPROGRESS;
|
|
} else {
|
|
errno = socket_error();
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef listen
|
|
int qemu_listen_wrap(int sockfd, int backlog)
|
|
{
|
|
int ret;
|
|
ret = listen(sockfd, backlog);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef bind
|
|
int qemu_bind_wrap(int sockfd, const struct sockaddr *addr,
|
|
socklen_t addrlen)
|
|
{
|
|
int ret;
|
|
ret = bind(sockfd, addr, addrlen);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef socket
|
|
int qemu_socket_wrap(int domain, int type, int protocol)
|
|
{
|
|
int ret;
|
|
ret = socket(domain, type, protocol);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef accept
|
|
int qemu_accept_wrap(int sockfd, struct sockaddr *addr,
|
|
socklen_t *addrlen)
|
|
{
|
|
int ret;
|
|
ret = accept(sockfd, addr, addrlen);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef shutdown
|
|
int qemu_shutdown_wrap(int sockfd, int how)
|
|
{
|
|
int ret;
|
|
ret = shutdown(sockfd, how);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef ioctlsocket
|
|
int qemu_ioctlsocket_wrap(int fd, int req, void *val)
|
|
{
|
|
int ret;
|
|
ret = ioctlsocket(fd, req, val);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef closesocket
|
|
int qemu_closesocket_wrap(int fd)
|
|
{
|
|
int ret;
|
|
ret = closesocket(fd);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef getsockopt
|
|
int qemu_getsockopt_wrap(int sockfd, int level, int optname,
|
|
void *optval, socklen_t *optlen)
|
|
{
|
|
int ret;
|
|
ret = getsockopt(sockfd, level, optname, optval, optlen);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef setsockopt
|
|
int qemu_setsockopt_wrap(int sockfd, int level, int optname,
|
|
const void *optval, socklen_t optlen)
|
|
{
|
|
int ret;
|
|
ret = setsockopt(sockfd, level, optname, optval, optlen);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef getpeername
|
|
int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr,
|
|
socklen_t *addrlen)
|
|
{
|
|
int ret;
|
|
ret = getpeername(sockfd, addr, addrlen);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef getsockname
|
|
int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr,
|
|
socklen_t *addrlen)
|
|
{
|
|
int ret;
|
|
ret = getsockname(sockfd, addr, addrlen);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef send
|
|
ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags)
|
|
{
|
|
int ret;
|
|
ret = send(sockfd, buf, len, flags);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef sendto
|
|
ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags,
|
|
const struct sockaddr *addr, socklen_t addrlen)
|
|
{
|
|
int ret;
|
|
ret = sendto(sockfd, buf, len, flags, addr, addrlen);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef recv
|
|
ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags)
|
|
{
|
|
int ret;
|
|
ret = recv(sockfd, buf, len, flags);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#undef recvfrom
|
|
ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags,
|
|
struct sockaddr *addr, socklen_t *addrlen)
|
|
{
|
|
int ret;
|
|
ret = recvfrom(sockfd, buf, len, flags, addr, addrlen);
|
|
if (ret < 0) {
|
|
errno = socket_error();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
bool qemu_write_pidfile(const char *filename, Error **errp)
|
|
{
|
|
char buffer[128];
|
|
int len;
|
|
HANDLE file;
|
|
OVERLAPPED overlap;
|
|
BOOL ret;
|
|
memset(&overlap, 0, sizeof(overlap));
|
|
|
|
file = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
|
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
|
|
|
if (file == INVALID_HANDLE_VALUE) {
|
|
error_setg(errp, "Failed to create PID file");
|
|
return false;
|
|
}
|
|
len = snprintf(buffer, sizeof(buffer), FMT_pid "\n", (pid_t)getpid());
|
|
ret = WriteFile(file, (LPCVOID)buffer, (DWORD)len,
|
|
NULL, &overlap);
|
|
CloseHandle(file);
|
|
if (ret == 0) {
|
|
error_setg(errp, "Failed to write PID file");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
size_t qemu_get_host_physmem(void)
|
|
{
|
|
MEMORYSTATUSEX statex;
|
|
statex.dwLength = sizeof(statex);
|
|
|
|
if (GlobalMemoryStatusEx(&statex)) {
|
|
return statex.ullTotalPhys;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int qemu_msync(void *addr, size_t length, int fd)
|
|
{
|
|
/**
|
|
* Perform the sync based on the file descriptor
|
|
* The sync range will most probably be wider than the one
|
|
* requested - but it will still get the job done
|
|
*/
|
|
return qemu_fdatasync(fd);
|
|
}
|