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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *  * Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  *  * Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in
     12  *    the documentation and/or other materials provided with the
     13  *    distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
     22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _SYS_SOCKET_H_
     30 #define _SYS_SOCKET_H_
     31 
     32 #include <sys/cdefs.h>
     33 #include <sys/types.h>
     34 #include <linux/socket.h>
     35 
     36 #include <asm/fcntl.h>
     37 #include <asm/socket.h>
     38 #include <linux/sockios.h>
     39 #include <linux/uio.h>
     40 #include <linux/types.h>
     41 #include <linux/compiler.h>
     42 
     43 __BEGIN_DECLS
     44 
     45 #define sockaddr_storage __kernel_sockaddr_storage
     46 typedef unsigned short sa_family_t;
     47 
     48 struct timespec;
     49 
     50 #ifdef __mips__
     51 #define SOCK_DGRAM      1
     52 #define SOCK_STREAM     2
     53 #define SOCK_RAW        3
     54 #define SOCK_RDM        4
     55 #define SOCK_SEQPACKET  5
     56 #define SOCK_DCCP       6
     57 #define SOCK_PACKET     10
     58 #else
     59 #define SOCK_STREAM      1
     60 #define SOCK_DGRAM       2
     61 #define SOCK_RAW         3
     62 #define SOCK_RDM         4
     63 #define SOCK_SEQPACKET   5
     64 #define SOCK_PACKET      10
     65 #endif
     66 
     67 #define SOCK_CLOEXEC O_CLOEXEC
     68 #define SOCK_NONBLOCK O_NONBLOCK
     69 
     70 enum {
     71   SHUT_RD = 0,
     72 #define SHUT_RD         SHUT_RD
     73   SHUT_WR,
     74 #define SHUT_WR         SHUT_WR
     75   SHUT_RDWR
     76 #define SHUT_RDWR       SHUT_RDWR
     77 };
     78 
     79 struct sockaddr {
     80   sa_family_t sa_family;
     81   char sa_data[14];
     82 };
     83 
     84 struct linger {
     85   int l_onoff;
     86   int l_linger;
     87 };
     88 
     89 struct msghdr {
     90   void* msg_name;
     91   socklen_t msg_namelen;
     92   struct iovec* msg_iov;
     93   size_t msg_iovlen;
     94   void* msg_control;
     95   size_t msg_controllen;
     96   int msg_flags;
     97 };
     98 
     99 struct mmsghdr {
    100   struct msghdr msg_hdr;
    101   unsigned int msg_len;
    102 };
    103 
    104 struct cmsghdr {
    105   size_t cmsg_len;
    106   int cmsg_level;
    107   int cmsg_type;
    108 };
    109 
    110 #define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr((mhdr), (cmsg))
    111 #define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) )
    112 #define CMSG_DATA(cmsg) ((void*)((char*)(cmsg) + CMSG_ALIGN(sizeof(struct cmsghdr))))
    113 #define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len))
    114 #define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
    115 #define CMSG_FIRSTHDR(msg) \
    116   ((msg)->msg_controllen >= sizeof(struct cmsghdr) \
    117    ? (struct cmsghdr*) (msg)->msg_control : (struct cmsghdr*) NULL)
    118 #define CMSG_OK(mhdr, cmsg) ((cmsg)->cmsg_len >= sizeof(struct cmsghdr) &&   (cmsg)->cmsg_len <= (unsigned long)   ((mhdr)->msg_controllen -   ((char*)(cmsg) - (char*)(mhdr)->msg_control)))
    119 
    120 struct cmsghdr* __cmsg_nxthdr(struct msghdr*, struct cmsghdr*);
    121 
    122 #define SCM_RIGHTS 0x01
    123 #define SCM_CREDENTIALS 0x02
    124 #define SCM_SECURITY 0x03
    125 
    126 struct ucred {
    127   pid_t pid;
    128   uid_t uid;
    129   gid_t gid;
    130 };
    131 
    132 #define AF_UNSPEC 0
    133 #define AF_UNIX 1
    134 #define AF_LOCAL 1
    135 #define AF_INET 2
    136 #define AF_AX25 3
    137 #define AF_IPX 4
    138 #define AF_APPLETALK 5
    139 #define AF_NETROM 6
    140 #define AF_BRIDGE 7
    141 #define AF_ATMPVC 8
    142 #define AF_X25 9
    143 #define AF_INET6 10
    144 #define AF_ROSE 11
    145 #define AF_DECnet 12
    146 #define AF_NETBEUI 13
    147 #define AF_SECURITY 14
    148 #define AF_KEY 15
    149 #define AF_NETLINK 16
    150 #define AF_ROUTE AF_NETLINK
    151 #define AF_PACKET 17
    152 #define AF_ASH 18
    153 #define AF_ECONET 19
    154 #define AF_ATMSVC 20
    155 #define AF_RDS 21
    156 #define AF_SNA 22
    157 #define AF_IRDA 23
    158 #define AF_PPPOX 24
    159 #define AF_WANPIPE 25
    160 #define AF_LLC 26
    161 #define AF_CAN 29
    162 #define AF_TIPC 30
    163 #define AF_BLUETOOTH 31
    164 #define AF_IUCV 32
    165 #define AF_RXRPC 33
    166 #define AF_ISDN 34
    167 #define AF_PHONET 35
    168 #define AF_IEEE802154 36
    169 #define AF_CAIF 37
    170 #define AF_ALG 38
    171 #define AF_MAX 39
    172 
    173 #define PF_UNSPEC AF_UNSPEC
    174 #define PF_UNIX AF_UNIX
    175 #define PF_LOCAL AF_LOCAL
    176 #define PF_INET AF_INET
    177 #define PF_AX25 AF_AX25
    178 #define PF_IPX AF_IPX
    179 #define PF_APPLETALK AF_APPLETALK
    180 #define PF_NETROM AF_NETROM
    181 #define PF_BRIDGE AF_BRIDGE
    182 #define PF_ATMPVC AF_ATMPVC
    183 #define PF_X25 AF_X25
    184 #define PF_INET6 AF_INET6
    185 #define PF_ROSE AF_ROSE
    186 #define PF_DECnet AF_DECnet
    187 #define PF_NETBEUI AF_NETBEUI
    188 #define PF_SECURITY AF_SECURITY
    189 #define PF_KEY AF_KEY
    190 #define PF_NETLINK AF_NETLINK
    191 #define PF_ROUTE AF_ROUTE
    192 #define PF_PACKET AF_PACKET
    193 #define PF_ASH AF_ASH
    194 #define PF_ECONET AF_ECONET
    195 #define PF_ATMSVC AF_ATMSVC
    196 #define PF_RDS AF_RDS
    197 #define PF_SNA AF_SNA
    198 #define PF_IRDA AF_IRDA
    199 #define PF_PPPOX AF_PPPOX
    200 #define PF_WANPIPE AF_WANPIPE
    201 #define PF_LLC AF_LLC
    202 #define PF_CAN AF_CAN
    203 #define PF_TIPC AF_TIPC
    204 #define PF_BLUETOOTH AF_BLUETOOTH
    205 #define PF_IUCV AF_IUCV
    206 #define PF_RXRPC AF_RXRPC
    207 #define PF_ISDN AF_ISDN
    208 #define PF_PHONET AF_PHONET
    209 #define PF_IEEE802154 AF_IEEE802154
    210 #define PF_CAIF AF_CAIF
    211 #define PF_ALG AF_ALG
    212 #define PF_MAX AF_MAX
    213 
    214 #define SOMAXCONN 128
    215 
    216 #define MSG_OOB 1
    217 #define MSG_PEEK 2
    218 #define MSG_DONTROUTE 4
    219 #define MSG_TRYHARD 4
    220 #define MSG_CTRUNC 8
    221 #define MSG_PROBE 0x10
    222 #define MSG_TRUNC 0x20
    223 #define MSG_DONTWAIT 0x40
    224 #define MSG_EOR 0x80
    225 #define MSG_WAITALL 0x100
    226 #define MSG_FIN 0x200
    227 #define MSG_SYN 0x400
    228 #define MSG_CONFIRM 0x800
    229 #define MSG_RST 0x1000
    230 #define MSG_ERRQUEUE 0x2000
    231 #define MSG_NOSIGNAL 0x4000
    232 #define MSG_MORE 0x8000
    233 #define MSG_WAITFORONE 0x10000
    234 #define MSG_FASTOPEN 0x20000000
    235 #define MSG_CMSG_CLOEXEC 0x40000000
    236 #define MSG_EOF MSG_FIN
    237 #define MSG_CMSG_COMPAT 0
    238 
    239 #define SOL_IP 0
    240 #define SOL_TCP 6
    241 #define SOL_UDP 17
    242 #define SOL_IPV6 41
    243 #define SOL_ICMPV6 58
    244 #define SOL_SCTP 132
    245 #define SOL_RAW 255
    246 #define SOL_IPX 256
    247 #define SOL_AX25 257
    248 #define SOL_ATALK 258
    249 #define SOL_NETROM 259
    250 #define SOL_ROSE 260
    251 #define SOL_DECNET 261
    252 #define SOL_X25 262
    253 #define SOL_PACKET 263
    254 #define SOL_ATM 264
    255 #define SOL_AAL 265
    256 #define SOL_IRDA 266
    257 #define SOL_NETBEUI 267
    258 #define SOL_LLC 268
    259 #define SOL_DCCP 269
    260 #define SOL_NETLINK 270
    261 #define SOL_TIPC 271
    262 
    263 #define IPX_TYPE 1
    264 
    265 #ifdef __i386__
    266 # define __socketcall extern __attribute__((__cdecl__))
    267 #else
    268 # define __socketcall extern
    269 #endif
    270 
    271 __socketcall int accept(int, struct sockaddr*, socklen_t*);
    272 __socketcall int accept4(int, struct sockaddr*, socklen_t*, int);
    273 __socketcall int bind(int, const struct sockaddr*, int);
    274 __socketcall int connect(int, const struct sockaddr*, socklen_t);
    275 __socketcall int getpeername(int, struct sockaddr*, socklen_t*);
    276 __socketcall int getsockname(int, struct sockaddr*, socklen_t*);
    277 __socketcall int getsockopt(int, int, int, void*, socklen_t*);
    278 __socketcall int listen(int, int);
    279 __socketcall int recvmmsg(int, struct mmsghdr*, unsigned int, int, const struct timespec*);
    280 __socketcall int recvmsg(int, struct msghdr*, int);
    281 __socketcall int sendmmsg(int, const struct mmsghdr*, unsigned int, int);
    282 __socketcall int sendmsg(int, const struct msghdr*, int);
    283 __socketcall int setsockopt(int, int, int, const void*, socklen_t);
    284 __socketcall int shutdown(int, int);
    285 __socketcall int socket(int, int, int);
    286 __socketcall int socketpair(int, int, int, int*);
    287 
    288 extern ssize_t send(int, const void*, size_t, int);
    289 extern ssize_t recv(int, void*, size_t, int);
    290 
    291 __socketcall ssize_t sendto(int, const void*, size_t, int, const struct sockaddr*, socklen_t);
    292 __socketcall ssize_t recvfrom(int, void*, size_t, int, const struct sockaddr*, socklen_t*);
    293 
    294 #if defined(__BIONIC_FORTIFY)
    295 __errordecl(__recvfrom_error, "recvfrom called with size bigger than buffer");
    296 extern ssize_t __recvfrom_chk(int, void*, size_t, size_t, int, const struct sockaddr*, socklen_t*);
    297 extern ssize_t __recvfrom_real(int, void*, size_t, int, const struct sockaddr*, socklen_t*)
    298     __asm__(__USER_LABEL_PREFIX__ "recvfrom");
    299 
    300 __BIONIC_FORTIFY_INLINE
    301 ssize_t recvfrom(int fd, void* buf, size_t len, int flags, const struct sockaddr* src_addr, socklen_t* addr_len) {
    302   size_t bos = __bos0(buf);
    303 
    304 #if !defined(__clang__)
    305   if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) {
    306     return __recvfrom_real(fd, buf, len, flags, src_addr, addr_len);
    307   }
    308 
    309   if (__builtin_constant_p(len) && (len <= bos)) {
    310     return __recvfrom_real(fd, buf, len, flags, src_addr, addr_len);
    311   }
    312 
    313   if (__builtin_constant_p(len) && (len > bos)) {
    314     __recvfrom_error();
    315   }
    316 #endif
    317 
    318   return __recvfrom_chk(fd, buf, len, bos, flags, src_addr, addr_len);
    319 }
    320 
    321 __BIONIC_FORTIFY_INLINE
    322 ssize_t recv(int socket, void* buf, size_t len, int flags) {
    323   return recvfrom(socket, buf, len, flags, NULL, 0);
    324 }
    325 
    326 #endif /* __BIONIC_FORTIFY */
    327 
    328 #undef __socketcall
    329 
    330 __END_DECLS
    331 
    332 #endif /* _SYS_SOCKET_H */
    333