/* $NetBSD: linux_socket.h,v 1.23.6.1 2020/01/21 18:12:54 martin Exp $ */ /*- * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Frank van der Linden and Eric Haszlakiewicz. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _LINUX_SOCKET_H #define _LINUX_SOCKET_H /* * Various Linux socket defines. Everything that is not re-defined here * is the same as in NetBSD. * * COMPAT_43 is assumed, and the osockaddr struct is used (it is what * Linux uses) */ /* * Address families. There are fewer of them, and they're numbered * a bit different */ #define LINUX_AF_UNSPEC 0 #define LINUX_AF_UNIX 1 #define LINUX_AF_INET 2 #define LINUX_AF_AX25 3 #define LINUX_AF_IPX 4 #define LINUX_AF_APPLETALK 5 #define LINUX_AF_NETROM 6 #define LINUX_AF_BRIDGE 7 #define LINUX_AF_ATMPVC 8 #define LINUX_AF_X25 9 #define LINUX_AF_INET6 10 #define LINUX_AF_ROSE 11 #define LINUX_AF_DECnet 12 #define LINUX_AF_NETBEUI 13 #define LINUX_AF_SECURITY 14 #define LINUX_pseudo_AF_KEY 15 #define LINUX_AF_NETLINK 16 #define LINUX_AF_PACKET 17 #define LINUX_AF_ASH 18 #define LINUX_AF_ECONET 19 #define LINUX_AF_ATMSVC 20 #define LINUX_AF_SNA 22 #define LINUX_AF_MAX 32 /* * Option levels for [gs]etsockopt(2). Only SOL_SOCKET is different, * the rest matches IPPROTO_XXX */ /* SOL_SOCKET is machine dependent on Linux */ #define LINUX_SOL_IP 0 #define LINUX_SOL_TCP 6 #define LINUX_SOL_UDP 17 #define LINUX_SOL_IPV6 41 /* Unused for now: */ #define LINUX_SOL_ICMPV6 58 #define LINUX_SOL_RAW 255 #define LINUX_SOL_IPX 256 #define LINUX_SOL_AX25 257 #define LINUX_SOL_ATALK 258 #define LINUX_SOL_NETROM 259 #define LINUX_SOL_ROSE 260 #define LINUX_SOL_DECNET 261 #define LINUX_SOL_X25 262 #define LINUX_SOL_PACKET 263 #define LINUX_SOL_ATM 264 #define LINUX_SOL_AAL 265 /* * Options for [gs]etsockopt(2), socket level are machine dependent. */ /* * Options for [gs]etsockopt(2), IP level. */ #define LINUX_IP_TOS 1 #define LINUX_IP_TTL 2 #define LINUX_IP_HDRINCL 3 #define LINUX_IP_MULTICAST_IF 32 #define LINUX_IP_MULTICAST_TTL 33 #define LINUX_IP_MULTICAST_LOOP 34 #define LINUX_IP_ADD_MEMBERSHIP 35 #define LINUX_IP_DROP_MEMBERSHIP 36 /* * Options for [gs]etsockopt(2), IPV6 level. */ #define LINUX_IPV6_V6ONLY 26 /* * Options for [gs]etsockopt(2), TCP level. */ #define LINUX_TCP_NODELAY 1 #define LINUX_TCP_MAXSEG 2 /* "Socket"-level control message types: */ #define LINUX_SCM_RIGHTS 1 /* same as SCM_RIGHTS */ #define LINUX_SCM_CREDENTIALS 2 /* accepts ucred rather than sockcred */ #define LINUX_SCM_CONNECT 3 /* not supported in NetBSD */ #define LINUX_SCM_TIMESTAMP LINUX_SO_TIMESTAMP /* not actually implemented in Linux 2.5.15? */ struct linux_msghdr { void *msg_name; int msg_namelen; struct iovec *msg_iov; size_t msg_iovlen; void *msg_control; size_t msg_controllen; unsigned int msg_flags; }; struct linux_mmsghdr { struct linux_msghdr msg_hdr; unsigned int msg_len; }; /* * Message flags (for sendmsg/recvmsg) */ #define LINUX_MSG_OOB 0x001 #define LINUX_MSG_PEEK 0x002 #define LINUX_MSG_DONTROUTE 0x004 #define LINUX_MSG_TRYHARD 0x004 #define LINUX_MSG_CTRUNC 0x008 #define LINUX_MSG_PROBE 0x010 /* Don't send, only probe path */ #define LINUX_MSG_TRUNC 0x020 #define LINUX_MSG_DONTWAIT 0x040 /* this msg should be nonblocking */ #define LINUX_MSG_EOR 0x080 /* data completes record */ #define LINUX_MSG_WAITALL 0x100 /* wait for full request or error */ #define LINUX_MSG_FIN 0x200 #define LINUX_MSG_EOF LINUX_MSG_FIN #define LINUX_MSG_SYN 0x400 #define LINUX_MSG_CONFIRM 0x800 /* Confirm path validity */ #define LINUX_MSG_RST 0x1000 #define LINUX_MSG_ERRQUEUE 0x2000 /* fetch message from error queue */ #define LINUX_MSG_NOSIGNAL 0x4000 /* do not generate SIGPIPE */ #define LINUX_MSG_MORE 0x8000 /* Sender will send more */ /* * Linux alignment requirement for CMSG struct manipulation. * Linux aligns on (size_t) boundary on all architectures. * Fortunately for linux, linux_cmsghdr is always size_t aligned ! * since no padding is added between the header and data. * XXX: this code isn't right for the compat32 code. */ struct linux_cmsghdr { size_t cmsg_len; /* NB not socklen_t */ int cmsg_level; int cmsg_type; /* unsigned char __cmsg_data[0]; */ }; #define LINUX_CMSG_ALIGN(n) \ (((n) + sizeof(size_t)-1) & ~(sizeof(size_t)-1)) /* Linux either uses this, or &((cmsg)->__cmsg_data) */ #define LINUX_CMSG_DATA(cmsg) \ ((u_char *)((struct linux_cmsghdr *)(cmsg) + 1)) #define LINUX_CMSG_NXTHDR(mhdr, ucmsg, kcmsg) \ ((((char *)(ucmsg) + LINUX_CMSG_ALIGN((kcmsg)->cmsg_len) + \ sizeof(*(ucmsg))) > \ (((char *)(mhdr)->msg_control) + (mhdr)->msg_controllen)) ? \ (struct linux_cmsghdr *)NULL : \ (struct linux_cmsghdr *)((char *)(ucmsg) + \ LINUX_CMSG_ALIGN((kcmsg)->cmsg_len))) /* This the number of bytes removed from each item (excl. final padding) */ #define LINUX_CMSG_ALIGN_DELTA \ (CMSG_ALIGN(sizeof(struct cmsghdr)) - sizeof(struct linux_cmsghdr)) #define LINUX_CMSG_FIRSTHDR(mhdr) \ ((mhdr)->msg_controllen >= sizeof(struct linux_cmsghdr) ? \ (struct linux_cmsghdr *)(mhdr)->msg_control : NULL) #define LINUX_CMSG_SPACE(l) \ (sizeof(struct linux_cmsghdr) + LINUX_CMSG_ALIGN(l)) #define LINUX_CMSG_LEN(l) \ (sizeof(struct linux_cmsghdr) + (l)) /* * Machine specific definitions. */ #if defined(__i386__) #include #elif defined(__m68k__) #include #elif defined(__alpha__) #include #elif defined(__powerpc__) #include #elif defined(__mips__) #include #elif defined(__arm__) #include #elif defined(__amd64__) #include #else #error Undefined linux_socket.h machine type. #endif /* * Flags for socket(). * These are provided in the "type" parameter. */ #define LINUX_SOCK_TYPE_MASK 0xf #define LINUX_SOCK_CLOEXEC LINUX_O_CLOEXEC #ifndef LINUX_SOCK_NONBLOCK #define LINUX_SOCK_NONBLOCK LINUX_O_NONBLOCK #endif #endif /* !_LINUX_SOCKET_H */