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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 | /* * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* Copyright (c) 1998, Apple Computer, Inc. All rights reserved. */ /* * Header file for volfs */ #ifndef __VOLFS_VOLFS_H__ #define __VOLFS_VOLFS_H__ #include <sys/appleapiopts.h> #ifdef __APPLE_API_PRIVATE struct volfs_mntdata { struct vnode *volfs_rootvp; LIST_HEAD(volfs_fsvnodelist, vnode) volfs_fsvnodes; }; /* * Volfs vnodes exist only for the root, which allows for the enumeration * of all volfs accessible filesystems, and for the filesystems which * volfs handles. */ #define VOLFS_ROOT 1 /* This volfs vnode represents root of volfs */ #define VOLFS_FSNODE 2 /* This volfs vnode represents a file system */ struct volfs_vndata { int vnode_type; struct lock__bsd__ lock; unsigned int nodeID; /* the dev entry of a file system */ struct mount * fs_mount; }; #define MAXVLFSNAMLEN 24 /* max length is really 10, pad to 24 since * some of the math depends on VLFSDIRENTLEN * being a power of 2 */ #define VLFSDIRENTLEN (MAXVLFSNAMLEN + sizeof(u_int32_t) + sizeof(u_int16_t) + sizeof(u_int8_t) + sizeof(u_int8_t)) #define ROOT_DIRID 2 extern int (**volfs_vnodeop_p)(void *); __BEGIN_DECLS int volfs_mount __P((struct mount *, char *, caddr_t, struct nameidata *, struct proc *)); int volfs_start __P((struct mount *, int, struct proc *)); int volfs_unmount __P((struct mount *, int, struct proc *)); int volfs_root __P((struct mount *, struct vnode **)); int volfs_quotactl __P((struct mount *, int, uid_t, caddr_t, struct proc *)); int volfs_statfs __P((struct mount *, struct statfs *, struct proc *)); int volfs_sync __P((struct mount *, int, struct ucred *, struct proc *)); int volfs_vget __P((struct mount *, void *ino_t, struct vnode **)); int volfs_fhtovp __P((struct mount *, struct fid *, struct mbuf *, struct vnode **, int *, struct ucred **)); int volfs_vptofh __P((struct vnode *, struct fid *)); int volfs_init __P((struct vfsconf *)); int volfs_sysctl __P((int *, u_int, void *, size_t *, void *, size_t, struct proc *)); int volfs_reclaim __P((struct vop_reclaim_args*)); int volfs_access __P((struct vop_access_args *)); int volfs_getattr __P((struct vop_getattr_args *)); int volfs_select __P((struct vop_select_args *)); int volfs_rmdir __P((struct vop_rmdir_args *)); int volfs_readdir __P((struct vop_readdir_args *)); int volfs_lock __P((struct vop_lock_args *)); int volfs_unlock __P((struct vop_unlock_args *)); int volfs_islocked __P((struct vop_islocked_args *)); int volfs_pathconf __P((struct vop_pathconf_args *)); int volfs_lookup __P((struct vop_lookup_args *)); __END_DECLS #define VTOVL(VP) ((struct volfs_vndata *)((VP)->v_data)) #define PRINTIT kprintf #if VOLFS_DEBUG #define DBG_VOP_TEST_LOCKS 1 #define DBG_FUNC_NAME(FSTR) static char *funcname = FSTR #define DBG_PRINT_FUNC_NAME() PRINTIT("%s\n", funcname); #define DBG_VOP_PRINT_FUNCNAME() PRINTIT("%s: ", funcname); #define DBG_VOP_PRINT_CPN_INFO(CN) PRINTIT("name: %s",(CN)->cn_nameptr); #define DBG_VOP(STR) PRINTIT STR; #define DBG_VOP_PRINT_VNODE_INFO(VP) { if ((VP)) \ { if ((VP)->v_tag == VT_NON) \ PRINTIT("\tfs:%s id: %d v: 0x%x ", VTOVL(VP)->fs_mount->mnt_stat.f_fstypename, VTOVL(VP)->nodeID, (u_int)(VP)); \ else PRINTIT("\t%s v: 0x%x ", (VP)->v_mount->mnt_stat.f_fstypename, (u_int)(VP)); \ } else { PRINTIT("*** NULL NODE ***"); } } #else /* VOLFS_DEBUG */ #define DBG_VOP_TEST_LOCKS 0 #define DBG_FUNC_NAME(FSTR) #define DBG_PRINT_FUNC_NAME() #define DBG_VOP_PRINT_FUNCNAME() #define DBG_VOP_PRINT_CPN_INFO(CN) #define DBG_VOP(A) #define DBG_VOP_PRINT_VNODE_INFO(VP) #endif /* VOLFS_DEBUG */ #if DBG_VOP_TEST_LOCKS #define VOPDBG_IGNORE 0 #define VOPDBG_LOCKED 1 #define VOPDBG_UNLOCKED -1 #define VOPDBG_LOCKNOTNIL 2 #define VOPDBG_SAME 3 #define VOPDBG_ZERO 0 #define VOPDBG_POS 1 #define MAXDBGLOCKS 15 typedef struct VopDbgStoreRec { short id; struct vnode *vp; short inState; short outState; short errState; int inValue; int outValue; } VopDbgStoreRec; /* This sets up the test for the lock state of vnodes. The entry paramaters are: * I = index of paramater * VP = pointer to a vnode * ENTRYSTATE = the inState of the lock * EXITSTATE = the outState of the lock * ERRORSTATE = the error state of the lock * It initializes the structure, does some preliminary validity checks, but does nothing * if the instate is set to be ignored. */ #define DBG_VOP_LOCKS_DECL(I) VopDbgStoreRec VopDbgStore[I];short numOfLockSlots=I #define DBG_VOP_LOCKS_INIT(I,VP,ENTRYSTATE,EXITSTATE,ERRORSTATE,CHECKFLAG) \ if (I >= numOfLockSlots) { \ PRINTIT("%s: DBG_VOP_LOCKS_INIT: Entry #%d greater than allocated slots!\n", funcname, I); \ }; \ VopDbgStore[I].id = I; \ VopDbgStore[I].vp = (VP); \ VopDbgStore[I].inState = ENTRYSTATE; \ VopDbgStore[I].outState = EXITSTATE; \ VopDbgStore[I].errState = ERRORSTATE; \ VopDbgStore[I].inValue = 0; \ VopDbgStore[I].outValue = 0; \ if ((VopDbgStore[I].inState != VOPDBG_IGNORE)) { \ if ((VP) == NULL) \ PRINTIT ("%s: DBG_VOP_LOCK on start: Null vnode ptr\n", funcname); \ else \ VopDbgStore[I].inValue = lockstatus (&((struct volfs_vndata *)((VP)->v_data))->lock); \ } \ if ((VP) != NULL) \ { \ if (CHECKFLAG==VOPDBG_POS && (VP)->v_usecount <= 0) \ PRINTIT("%s: BAD USECOUNT OF %d !!!!\n", funcname, (VP)->v_usecount); \ else if ((VP)->v_usecount < 0) \ PRINTIT("%s: BAD USECOUNT OF %d !!!!\n", funcname, (VP)->v_usecount); \ } #define DBG_VOP_UPDATE_VP(I, VP) \ VopDbgStore[I].vp = (VP); #define DBG_VOP_LOCKS_TEST(status) DbgVopTest (numOfLockSlots, status, VopDbgStore, funcname); #else /*DBG_VOP_TEST_LOCKS */ #define DBG_VOP_LOCKS_DECL(A) #define DBG_VOP_LOCKS_INIT(A,B,C,D,E,F) #define DBG_VOP_LOCKS_TEST(a) #define DBG_VOP_UPDATE_VP(I, VP) #endif /* DBG_VOP_TEST_LOCKS */ #endif /* __APPLE_API_PRIVATE */ #endif /* __VOLFS_VOLFS_H__ */ |