release/src/router/udev/udev_sysdeps.h

   1 /*
   2  * wrapping of libc features and kernel interfaces
   3  *
   4  * Copyright (C) 2005-2006 Kay Sievers <kay.sievers@vrfy.org>
   5  *
   6  *      This program is free software; you can redistribute it and/or modify it
   7  *      under the terms of the GNU General Public License as published by the
   8  *      Free Software Foundation version 2 of the License.
   9  *
  10  *      This program is distributed in the hope that it will be useful, but
  11  *      WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  *      General Public License for more details.
  14  *
  15  *      You should have received a copy of the GNU General Public License along
  16  *      with this program; if not, write to the Free Software Foundation, Inc.,
  17  *      51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  *
  19  */
  20
  21 #ifndef _UDEV_SYSDEPS_H_
  22 #define _UDEV_SYSDEPS_H_
  23
  24 #include <string.h>
  25 #include <unistd.h>
  26 #include <stdint.h>
  27
  28 /* needed until Inotify! syscalls reach glibc */
  29 #include <sys/syscall.h>
  30 #ifndef __NR_inotify_init
  31 #if defined(__i386__)
  32 # define __NR_inotify_init      291
  33 # define __NR_inotify_add_watch 292
  34 # define __NR_inotify_rm_watch  293
  35 #elif defined(__x86_64__)
  36 # define __NR_inotify_init      253
  37 # define __NR_inotify_add_watch 254
  38 # define __NR_inotify_rm_watch  255
  39 #elif defined(__powerpc__) || defined(__powerpc64__)
  40 # define __NR_inotify_init      275
  41 # define __NR_inotify_add_watch 276
  42 # define __NR_inotify_rm_watch  277
  43 #elif defined (__ia64__)
  44 # define __NR_inotify_init      1277
  45 # define __NR_inotify_add_watch 1278
  46 # define __NR_inotify_rm_watch  1279
  47 #elif defined (__s390__)
  48 # define __NR_inotify_init      284
  49 # define __NR_inotify_add_watch 285
  50 # define __NR_inotify_rm_watch  286
  51 #elif defined (__alpha__)
  52 # define __NR_inotify_init      444
  53 # define __NR_inotify_add_watch 445
  54 # define __NR_inotify_rm_watch  446
  55 #elif defined (__sparc__) || defined (__sparc64__)
  56 # define __NR_inotify_init      151
  57 # define __NR_inotify_add_watch 152
  58 # define __NR_inotify_rm_watch  156
  59 #elif defined (__arm__)
  60 # define __NR_inotify_init      __NR_SYSCALL_BASE+316
  61 # define __NR_inotify_add_watch __NR_SYSCALL_BASE+317
  62 # define __NR_inotify_rm_watch  __NR_SYSCALL_BASE+318
  63 #elif defined (__sh__)
  64 # define __NR_inotify_init      290
  65 # define __NR_inotify_add_watch 291
  66 # define __NR_inotify_rm_watch  292
  67 #elif defined (__m32r__)
  68 # define __NR_inotify_init      290
  69 # define __NR_inotify_add_watch 291
  70 # define __NR_inotify_rm_watch  292
  71 #elif defined (__hppa__)
  72 # define __NR_inotify_init      269
  73 # define __NR_inotify_add_watch 270
  74 # define __NR_inotify_rm_watch  271
  75 #elif defined (__mips__)
  76 # include <sgidefs.h>
  77 # if _MIPS_SIM == _MIPS_SIM_ABI32
  78 #  define __NR_Linux             4000
  79 #  define __NR_inotify_init      (__NR_Linux + 284)
  80 #  define __NR_inotify_add_watch (__NR_Linux + 285)
  81 #  define __NR_inotify_rm_watch  (__NR_Linux + 286)
  82 # elif _MIPS_SIM == _MIPS_SIM_ABI64
  83 #  define __NR_Linux             5000
  84 #  define __NR_inotify_init      (__NR_Linux + 243)
  85 #  define __NR_inotify_add_watch (__NR_Linux + 244)
  86 #  define __NR_inotify_rm_watch  (__NR_Linux + 245)
  87 # elif _MIPS_SIM == _MIPS_SIM_NABI32
  88 #  define __NR_Linux             6000
  89 #  define __NR_inotify_init      (__NR_Linux + 247)
  90 #  define __NR_inotify_add_watch (__NR_Linux + 248)
  91 #  define __NR_inotify_rm_watch  (__NR_Linux + 249)
  92 # endif
  93 #else
  94 #warning "inotify unsupported on this architecture!"
  95 #endif
  96 #endif /* __NR_inotify_init */
  97
  98 /* dummy if we don't have the syscalls defined */
  99 #ifndef __NR_inotify_init
 100 static inline int inotify_init(void)
 101 {
 102         return -1;
 103 }
 104
 105 static inline int inotify_add_watch(int fd, const char *name, uint32_t mask)
 106 {
 107         return -1;
 108 }
 109 #else
 110 /* needed until /usr/include/sys/inotify.h is working */
 111 #ifndef __GLIBC__
 112 #include <sys/inotify.h>
 113 #else
 114 static inline int inotify_init(void)
 115 {
 116         return syscall(__NR_inotify_init);
 117 }
 118
 119 static inline int inotify_add_watch(int fd, const char *name, uint32_t mask)
 120 {
 121         return syscall(__NR_inotify_add_watch, fd, name, mask);
 122 }
 123 #endif /* __GLIBC__ */
 124 #endif /* __NR_inotify_init */
 125
 126 #ifndef IN_CREATE
 127 #define IN_CREATE               0x00000100      /* Subfile was created */
 128 #define IN_MOVED_FROM           0x00000040      /* File was moved from X */
 129 #define IN_MOVED_TO             0x00000080      /* File was moved to Y */
 130 #define IN_DELETE               0x00000200      /* Subfile was deleted */
 131 #define IN_CLOSE_WRITE          0x00000008      /* Writtable file was closed */
 132 #define IN_MOVE                 (IN_MOVED_FROM | IN_MOVED_TO) /* moves */
 133 #endif /* IN_CREATE */
 134
 135 /* needed for our signal handlers to work */
 136 #undef asmlinkage
 137 #ifdef __i386__
 138 #define asmlinkage      __attribute__((regparm(0)))
 139 #else
 140 #define asmlinkage
 141 #endif /* __i386__ */
 142
 143 /* headers are broken on some architectures */
 144 #ifndef __FD_SET
 145 #define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
 146 #endif
 147 #ifndef __FD_CLR
 148 #define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
 149 #endif
 150 #ifndef __FD_ISSET
 151 #define __FD_ISSET(d, set) (((set)->fds_bits[__FDELT(d)] & __FDMASK(d)) != 0)
 152 #endif
 153 #ifndef __FD_ZERO
 154 #define __FD_ZERO(set) ((void) memset ((void*) (set), 0, sizeof (fd_set)))
 155 #endif
 156
 157 #ifndef NETLINK_KOBJECT_UEVENT
 158 #define NETLINK_KOBJECT_UEVENT  15
 159 #endif
 160
 161 #ifndef SO_RCVBUFFORCE
 162 #if defined(__alpha__) || defined(__hppa__) || defined(__sparc__) || defined(__sparc_v9__)
 163 #define SO_RCVBUFFORCE 0x100b
 164 #else
 165 #define SO_RCVBUFFORCE 33
 166 #endif
 167 #endif
 168
 169 extern size_t strlcpy(char *dst, const char *src, size_t size);
 170 extern size_t strlcat(char *dst, const char *src, size_t size);
 171
 172 #endif