1 /* $NetBSD: linux_socket.h,v 1.27 2025/06/28 18:47:36 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frank van der Linden and Eric Haszlakiewicz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LINUX_SOCKET_H 33 #define _LINUX_SOCKET_H 34 35 /* 36 * Various Linux socket defines. Everything that is not re-defined here 37 * is the same as in NetBSD. 38 * 39 * COMPAT_43 is assumed, and the osockaddr struct is used (it is what 40 * Linux uses) 41 */ 42 43 /* 44 * Address families. There are fewer of them, and they're numbered 45 * a bit different 46 */ 47 48 #define LINUX_AF_UNSPEC 0 49 #define LINUX_AF_UNIX 1 50 #define LINUX_AF_INET 2 51 #define LINUX_AF_AX25 3 52 #define LINUX_AF_IPX 4 53 #define LINUX_AF_APPLETALK 5 54 #define LINUX_AF_NETROM 6 55 #define LINUX_AF_BRIDGE 7 56 #define LINUX_AF_ATMPVC 8 57 #define LINUX_AF_X25 9 58 #define LINUX_AF_INET6 10 59 #define LINUX_AF_ROSE 11 60 #define LINUX_AF_DECnet 12 61 #define LINUX_AF_NETBEUI 13 62 #define LINUX_AF_SECURITY 14 63 #define LINUX_pseudo_AF_KEY 15 64 #define LINUX_AF_NETLINK 16 65 #define LINUX_AF_PACKET 17 66 #define LINUX_AF_ASH 18 67 #define LINUX_AF_ECONET 19 68 #define LINUX_AF_ATMSVC 20 69 #define LINUX_AF_SNA 22 70 #define LINUX_AF_MAX 32 71 72 /* 73 * Option levels for [gs]etsockopt(2). Only SOL_SOCKET is different, 74 * the rest matches IPPROTO_XXX 75 */ 76 77 /* SOL_SOCKET is machine dependent on Linux */ 78 #define LINUX_SOL_IP 0 79 #define LINUX_SOL_TCP 6 80 #define LINUX_SOL_UDP 17 81 #define LINUX_SOL_IPV6 41 82 /* Unused for now: */ 83 #define LINUX_SOL_ICMPV6 58 84 #define LINUX_SOL_RAW 255 85 #define LINUX_SOL_IPX 256 86 #define LINUX_SOL_AX25 257 87 #define LINUX_SOL_ATALK 258 88 #define LINUX_SOL_NETROM 259 89 #define LINUX_SOL_ROSE 260 90 #define LINUX_SOL_DECNET 261 91 #define LINUX_SOL_X25 262 92 #define LINUX_SOL_PACKET 263 93 #define LINUX_SOL_ATM 264 94 #define LINUX_SOL_AAL 265 95 96 /* 97 * Options for [gs]etsockopt(2), socket level are machine dependent. 98 */ 99 100 /* 101 * Options for [gs]etsockopt(2), IP level. 102 */ 103 104 #define LINUX_IP_TOS 1 105 #define LINUX_IP_TTL 2 106 #define LINUX_IP_HDRINCL 3 107 #define LINUX_IP_RECVOPTS 6 108 #define LINUX_IP_RETOPTS 7 109 #define LINUX_IP_PKTINFO 8 110 #define LINUX_IP_RECVERR 11 111 #define LINUX_IP_FREEBIND 15 112 #define LINUX_IP_MULTICAST_IF 32 113 #define LINUX_IP_MULTICAST_TTL 33 114 #define LINUX_IP_MULTICAST_LOOP 34 115 #define LINUX_IP_ADD_MEMBERSHIP 35 116 #define LINUX_IP_DROP_MEMBERSHIP 36 117 #define LINUX_IP_MULTICAST_ALL 49 118 119 /* 120 * Options for [gs]etsockopt(2), IPV6 level. 121 */ 122 123 #define LINUX_IPV6_V6ONLY 26 124 #define LINUX_IPV6_MULTICAST_HOPS 18 125 #define LINUX_IPV6_MULTICAST_ALL 29 126 127 /* 128 * Options for [gs]etsockopt(2), TCP level. 129 */ 130 131 #define LINUX_TCP_NODELAY 1 132 #define LINUX_TCP_MAXSEG 2 133 134 /* "Socket"-level control message types: */ 135 #define LINUX_SCM_RIGHTS 1 /* same as SCM_RIGHTS */ 136 #define LINUX_SCM_CREDENTIALS 2 /* accepts ucred rather than sockcred */ 137 #define LINUX_SCM_CONNECT 3 /* not supported in NetBSD */ 138 #define LINUX_SCM_TIMESTAMP LINUX_SO_TIMESTAMP 139 /* not actually implemented in Linux 2.5.15? */ 140 141 struct linux_msghdr { 142 void *msg_name; 143 int msg_namelen; 144 struct iovec *msg_iov; 145 size_t msg_iovlen; 146 void *msg_control; 147 size_t msg_controllen; 148 unsigned int msg_flags; 149 }; 150 151 struct linux_mmsghdr { 152 struct linux_msghdr msg_hdr; 153 unsigned int msg_len; 154 }; 155 156 /* 157 * Message flags (for sendmsg/recvmsg) 158 */ 159 #define LINUX_MSG_OOB 0x001 160 #define LINUX_MSG_PEEK 0x002 161 #define LINUX_MSG_DONTROUTE 0x004 162 #define LINUX_MSG_TRYHARD 0x004 163 #define LINUX_MSG_CTRUNC 0x008 164 #define LINUX_MSG_PROBE 0x010 /* Don't send, only probe path */ 165 #define LINUX_MSG_TRUNC 0x020 166 #define LINUX_MSG_DONTWAIT 0x040 /* this msg should be nonblocking */ 167 #define LINUX_MSG_EOR 0x080 /* data completes record */ 168 #define LINUX_MSG_WAITALL 0x100 /* wait for full request or error */ 169 #define LINUX_MSG_FIN 0x200 170 #define LINUX_MSG_EOF LINUX_MSG_FIN 171 #define LINUX_MSG_SYN 0x400 172 #define LINUX_MSG_CONFIRM 0x800 /* Confirm path validity */ 173 #define LINUX_MSG_RST 0x1000 174 #define LINUX_MSG_ERRQUEUE 0x2000 /* fetch message from error queue */ 175 #define LINUX_MSG_NOSIGNAL 0x4000 /* do not generate SIGPIPE */ 176 #define LINUX_MSG_MORE 0x8000 /* Sender will send more */ 177 178 /* 179 * Linux alignment requirement for CMSG struct manipulation. 180 * Linux aligns on (size_t) boundary on all architectures. 181 * Fortunately for linux, linux_cmsghdr is always size_t aligned ! 182 * since no padding is added between the header and data. 183 * XXX: this code isn't right for the compat32 code. 184 */ 185 struct linux_cmsghdr { 186 size_t cmsg_len; /* NB not socklen_t */ 187 int cmsg_level; 188 int cmsg_type; 189 /* unsigned char __cmsg_data[0]; */ 190 }; 191 192 #define LINUX_CMSG_ALIGN(n) \ 193 (((n) + sizeof(size_t)-1) & ~(sizeof(size_t)-1)) 194 /* Linux either uses this, or &((cmsg)->__cmsg_data) */ 195 #define LINUX_CMSG_DATA(cmsg) \ 196 ((u_char *)((struct linux_cmsghdr *)(cmsg) + 1)) 197 #define LINUX_CMSG_NXTHDR(mhdr, ucmsg, kcmsg) \ 198 ((((char *)(ucmsg) + LINUX_CMSG_ALIGN((kcmsg)->cmsg_len) + \ 199 sizeof(*(ucmsg))) > \ 200 (((char *)(mhdr)->msg_control) + (mhdr)->msg_controllen)) ? \ 201 (struct linux_cmsghdr *)NULL : \ 202 (struct linux_cmsghdr *)((char *)(ucmsg) + \ 203 LINUX_CMSG_ALIGN((kcmsg)->cmsg_len))) 204 /* This the number of bytes removed from each item (excl. final padding) */ 205 #define LINUX_CMSG_ALIGN_DELTA \ 206 (CMSG_ALIGN(sizeof(struct cmsghdr)) - sizeof(struct linux_cmsghdr)) 207 208 #define LINUX_CMSG_FIRSTHDR(mhdr) \ 209 ((mhdr)->msg_controllen >= sizeof(struct linux_cmsghdr) ? \ 210 (struct linux_cmsghdr *)(mhdr)->msg_control : NULL) 211 212 #define LINUX_CMSG_SPACE(l) \ 213 (sizeof(struct linux_cmsghdr) + LINUX_CMSG_ALIGN(l)) 214 #define LINUX_CMSG_LEN(l) \ 215 (sizeof(struct linux_cmsghdr) + (l)) 216 217 /* 218 * Machine specific definitions. 219 */ 220 #if defined(__i386__) 221 #include <compat/linux/arch/i386/linux_socket.h> 222 #elif defined(__m68k__) 223 #include <compat/linux/arch/m68k/linux_socket.h> 224 #elif defined(__alpha__) 225 #include <compat/linux/arch/alpha/linux_socket.h> 226 #elif defined(__powerpc__) 227 #include <compat/linux/arch/powerpc/linux_socket.h> 228 #elif defined(__mips__) 229 #include <compat/linux/arch/mips/linux_socket.h> 230 #elif defined(__aarch64__) 231 #include <compat/linux/arch/aarch64/linux_socket.h> 232 #elif defined(__arm__) 233 #include <compat/linux/arch/arm/linux_socket.h> 234 #elif defined(__amd64__) 235 #include <compat/linux/arch/amd64/linux_socket.h> 236 #else 237 #error Undefined linux_socket.h machine type. 238 #endif 239 240 /* 241 * Flags for socket(). 242 * These are provided in the "type" parameter. 243 */ 244 245 #define LINUX_SOCK_TYPE_MASK 0xf 246 #define LINUX_SOCK_CLOEXEC LINUX_O_CLOEXEC 247 #ifndef LINUX_SOCK_NONBLOCK 248 #define LINUX_SOCK_NONBLOCK LINUX_O_NONBLOCK 249 #endif 250 251 #endif /* !_LINUX_SOCKET_H */ 252
Indexes created Sun Sep 21 16:09:51 GMT 2025