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/* SPDX-License-Identifier: MIT */
/*
* Copyright (c) 2003-2008 Fabrice Bellard
* Copyright (c) 2010-2019 Red Hat, Inc.
*
* 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.
*/
#ifndef UTIL_H_
#define UTIL_H_
#include <glib.h>
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <inttypes.h>
#ifdef _WIN32
#include <winsock2.h>
#include <windows.h>
#include <ws2tcpip.h>
#else
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/tcp.h>
#include <netinet/in.h>
#endif
#include "libslirp.h"
#ifdef __GNUC__
#define SLIRP_PACKED_BEGIN
#if defined(_WIN32) && (defined(__x86_64__) || defined(__i386__))
#define SLIRP_PACKED_END __attribute__((gcc_struct, packed))
#else
#define SLIRP_PACKED_END __attribute__((packed))
#endif
#elif defined(_MSC_VER)
#define SLIRP_PACKED_BEGIN __pragma(pack(push, 1))
#define SLIRP_PACKED_END __pragma(pack(pop))
#endif
#ifndef DIV_ROUND_UP
#define DIV_ROUND_UP(n, d) (((n) + (d)-1) / (d))
#endif
#ifndef container_of
#define container_of(ptr, type, member) \
((type *) (((char *)(ptr)) - offsetof(type, member)))
#endif
#ifndef G_SIZEOF_MEMBER
#define G_SIZEOF_MEMBER(type, member) sizeof(((type *)0)->member)
#endif
#if defined(_WIN32) /* CONFIG_IOVEC */
#if !defined(IOV_MAX) /* XXX: to avoid duplicate with QEMU osdep.h */
struct iovec {
void *iov_base;
size_t iov_len;
};
#endif
#else
#include <sys/uio.h>
#endif
#define stringify(s) tostring(s)
#define tostring(s) #s
#define SCALE_MS 1000000
#define ETH_ALEN 6
#define ETH_ADDRSTRLEN 18 /* "xx:xx:xx:xx:xx:xx", with trailing NUL */
#define ETH_HLEN 14
#define ETH_P_IP (0x0800) /* Internet Protocol packet */
#define ETH_P_ARP (0x0806) /* Address Resolution packet */
#define ETH_P_IPV6 (0x86dd)
#define ETH_P_VLAN (0x8100)
#define ETH_P_DVLAN (0x88a8)
#define ETH_P_NCSI (0x88f8)
#define ETH_P_UNKNOWN (0xffff)
/* FIXME: remove me when made standalone */
#ifdef _WIN32
#undef accept
#undef bind
#undef closesocket
#undef connect
#undef getpeername
#undef getsockname
#undef getsockopt
#undef ioctlsocket
#undef listen
#undef recv
#undef recvfrom
#undef send
#undef sendto
#undef setsockopt
#undef shutdown
#undef socket
#endif
#ifdef _WIN32
#define connect slirp_connect_wrap
int slirp_connect_wrap(int fd, const struct sockaddr *addr, int addrlen);
#define listen slirp_listen_wrap
int slirp_listen_wrap(int fd, int backlog);
#define bind slirp_bind_wrap
int slirp_bind_wrap(int fd, const struct sockaddr *addr, int addrlen);
#define socket slirp_socket_wrap
int slirp_socket_wrap(int domain, int type, int protocol);
#define accept slirp_accept_wrap
int slirp_accept_wrap(int fd, struct sockaddr *addr, int *addrlen);
#define shutdown slirp_shutdown_wrap
int slirp_shutdown_wrap(int fd, int how);
#define getpeername slirp_getpeername_wrap
int slirp_getpeername_wrap(int fd, struct sockaddr *addr, int *addrlen);
#define getsockname slirp_getsockname_wrap
int slirp_getsockname_wrap(int fd, struct sockaddr *addr, int *addrlen);
#define send slirp_send_wrap
slirp_ssize_t slirp_send_wrap(int fd, const void *buf, size_t len, int flags);
#define sendto slirp_sendto_wrap
slirp_ssize_t slirp_sendto_wrap(int fd, const void *buf, size_t len, int flags,
const struct sockaddr *dest_addr, int addrlen);
#define recv slirp_recv_wrap
slirp_ssize_t slirp_recv_wrap(int fd, void *buf, size_t len, int flags);
#define recvfrom slirp_recvfrom_wrap
slirp_ssize_t slirp_recvfrom_wrap(int fd, void *buf, size_t len, int flags,
struct sockaddr *src_addr, int *addrlen);
#define closesocket slirp_closesocket_wrap
int slirp_closesocket_wrap(int fd);
#define ioctlsocket slirp_ioctlsocket_wrap
int slirp_ioctlsocket_wrap(int fd, int req, void *val);
#define getsockopt slirp_getsockopt_wrap
int slirp_getsockopt_wrap(int sockfd, int level, int optname, void *optval,
int *optlen);
#define setsockopt slirp_setsockopt_wrap
int slirp_setsockopt_wrap(int sockfd, int level, int optname,
const void *optval, int optlen);
#define inet_aton slirp_inet_aton
int slirp_inet_aton(const char *cp, struct in_addr *ia);
#else
#define closesocket(s) close(s)
#define ioctlsocket(s, r, v) ioctl(s, r, v)
#endif
int slirp_socket(int domain, int type, int protocol);
void slirp_set_nonblock(int fd);
static inline int slirp_socket_set_v6only(int fd, int v)
{
return setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &v, sizeof(v));
}
static inline int slirp_socket_set_nodelay(int fd)
{
int v = 1;
return setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &v, sizeof(v));
}
static inline int slirp_socket_set_fast_reuse(int fd)
{
#ifndef _WIN32
int v = 1;
return setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &v, sizeof(v));
#else
/* 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;
#endif
}
void slirp_pstrcpy(char *buf, int buf_size, const char *str);
int slirp_fmt(char *str, size_t size, const char *format, ...) G_GNUC_PRINTF(3, 4);
int slirp_fmt0(char *str, size_t size, const char *format, ...) G_GNUC_PRINTF(3, 4);
/*
* Pretty print a MAC address into out_str.
* As a convenience returns out_str.
*/
const char *slirp_ether_ntoa(const uint8_t *addr, char *out_str,
size_t out_str_len);
#endif
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