mirror of https://gitee.com/openkylin/qemu.git
128 lines
4.0 KiB
C
128 lines
4.0 KiB
C
/*
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* Copyright (c) 2003-2008 Fabrice Bellard
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* Copyright (c) 2010-2019 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef UTIL_H_
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#define UTIL_H_
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#include <stdlib.h>
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#include <stdio.h>
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#include <assert.h>
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#include <errno.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <inttypes.h>
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#ifdef _WIN32
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#include <winsock2.h>
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#include <windows.h>
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#else
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#include <sys/socket.h>
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#include <netinet/tcp.h>
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#include <netinet/in.h>
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#endif
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#if defined(_WIN32)
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# define SLIRP_PACKED __attribute__((gcc_struct, packed))
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#else
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# define SLIRP_PACKED __attribute__((packed))
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#endif
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#ifndef DIV_ROUND_UP
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#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
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#endif
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#ifndef container_of
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#define container_of(ptr, type, member) __extension__ ({ \
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void *__mptr = (void *)(ptr); \
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((type *)(__mptr - offsetof(type, member))); })
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#endif
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#if defined(_WIN32) /* CONFIG_IOVEC */
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# if !defined(IOV_MAX) /* XXX: to avoid duplicate with QEMU osdep.h */
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struct iovec {
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void *iov_base;
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size_t iov_len;
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};
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# endif
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#else
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#include <sys/uio.h>
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#endif
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#define SCALE_MS 1000000
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#define ETH_ALEN 6
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#define ETH_HLEN 14
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#define ETH_P_IP (0x0800) /* Internet Protocol packet */
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#define ETH_P_ARP (0x0806) /* Address Resolution packet */
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#define ETH_P_IPV6 (0x86dd)
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#define ETH_P_VLAN (0x8100)
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#define ETH_P_DVLAN (0x88a8)
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#define ETH_P_NCSI (0x88f8)
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#define ETH_P_UNKNOWN (0xffff)
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#ifdef _WIN32
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int slirp_closesocket(int fd);
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int slirp_ioctlsocket(int fd, int req, void *val);
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int inet_aton(const char *cp, struct in_addr *ia);
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#define slirp_getsockopt(sockfd, level, optname, optval, optlen) \
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getsockopt(sockfd, level, optname, (void *)optval, optlen)
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#define slirp_setsockopt(sockfd, level, optname, optval, optlen) \
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setsockopt(sockfd, level, optname, (const void *)optval, optlen)
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#define slirp_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags)
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#else
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#define slirp_setsockopt setsockopt
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#define slirp_getsockopt getsockopt
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#define slirp_recv recv
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#define slirp_closesocket close
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#define slirp_ioctlsocket ioctl
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#endif
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int slirp_socket(int domain, int type, int protocol);
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void slirp_set_nonblock(int fd);
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static inline int slirp_socket_set_nodelay(int fd)
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{
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int v = 1;
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return slirp_setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &v, sizeof(v));
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}
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static inline int slirp_socket_set_fast_reuse(int fd)
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{
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#ifndef _WIN32
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int v = 1;
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return slirp_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &v, sizeof(v));
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#else
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/* Enabling the reuse of an endpoint that was used by a socket still in
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* TIME_WAIT state is usually performed by setting SO_REUSEADDR. On Windows
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* fast reuse is the default and SO_REUSEADDR does strange things. So we
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* don't have to do anything here. More info can be found at:
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* http://msdn.microsoft.com/en-us/library/windows/desktop/ms740621.aspx */
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return 0;
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#endif
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}
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void slirp_pstrcpy(char *buf, int buf_size, const char *str);
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#endif
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