src/afs/FBSD/osi_module.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10
  11 #include <afsconfig.h>
  12 #include <afs/param.h>
  13
  14
  15 #include <afs/sysincludes.h>
  16 #include <afsincludes.h>
  17 #include <sys/module.h>
  18 #include <sys/sysproto.h>
  19 #include <sys/syscall.h>
  20
  21 extern struct vfsops afs_vfsops;
  22 extern struct vnodeopv_desc afs_vnodeop_opv_desc;
  23 extern struct mount *afs_globalVFS;
  24
  25 MALLOC_DEFINE(M_AFS, "afsmisc", "memory used by the AFS filesystem");
  26
  27 #ifdef AFS_FBSD60_ENV
  28 VFS_SET(afs_vfsops, afs, VFCF_NETWORK);
  29 #else
  30 int afs_module_handler(module_t mod, int what, void *arg);
  31
  32 static struct vfsconf afs_vfsconf;
  33 static moduledata_t afs_mod = {
  34     "afs",
  35     afs_module_handler,
  36     &afs_mod
  37 };
  38
  39 DECLARE_MODULE(afs, afs_mod, SI_SUB_VFS, SI_ORDER_MIDDLE);
  40 #endif
  41
  42 #ifndef AFS_FBSD60_ENV
  43 int
  44 afs_module_handler(module_t mod, int what, void *arg)
  45 {
  46     static int inited = 0;
  47     int error = 0;
  48
  49     switch (what) {
  50     case MOD_LOAD:
  51         if (inited) {
  52             printf("afs cannot be MOD_LOAD'd more than once\n");
  53             error = EBUSY;
  54             break;
  55         }
  56         memset(&afs_vfsconf, 0, sizeof(struct vfsconf));
  57 #ifdef AFS_FBSD53_ENV
  58         afs_vfsconf.vfc_version = VFS_VERSION;
  59 #endif
  60         strcpy(afs_vfsconf.vfc_name, "AFS");
  61         afs_vfsconf.vfc_vfsops = &afs_vfsops;
  62         afs_vfsconf.vfc_typenum = -1;   /* set by vfs_register */
  63         afs_vfsconf.vfc_flags = VFCF_NETWORK;
  64         if ((error = vfs_register(&afs_vfsconf)) != 0)
  65             break;
  66         vfs_add_vnodeops(&afs_vnodeop_opv_desc);
  67         inited = 1;
  68         break;
  69     case MOD_UNLOAD:
  70 #ifndef RXK_LISTENER_ENV
  71         /* shutdown is incomplete unless RXK_LISTENER_ENV */
  72         printf("afs: I can't be unloaded yet\n");
  73         return -1;
  74 #endif
  75         if (!inited) {
  76             error = 0;
  77             break;
  78         }
  79         if ((error = vfs_unregister(&afs_vfsconf)) != 0) {
  80             break;
  81         }
  82         vfs_rm_vnodeops(&afs_vnodeop_opv_desc);
  83         break;
  84     }
  85
  86     return (error);
  87 }
  88 #endif