src/afs/OBSD/osi_machdep.h

   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  *
  12  * OpenBSD OSI header file. Extends afs_osi.h.
  13  *
  14  * afs_osi.h includes this file, which is the only way this file should
  15  * be included in a source file. This file can redefine macros declared in
  16  * afs_osi.h.
  17  */
  18
  19 /* $Id$ */
  20
  21 #ifndef _OSI_MACHDEP_H_
  22 #define _OSI_MACHDEP_H_
  23
  24 #include <sys/lock.h>
  25
  26 #if defined(M_IP6OPT)
  27 #define M_AFSFID        (M_IP6OPT-1)
  28 #else
  29 #define M_AFSFID        (M_TEMP-1)
  30 #endif
  31
  32 #define M_AFSBUFHDR     (M_AFSFID-1)
  33 #define M_AFSBUFFER     (M_AFSFID-2)
  34 #define M_AFSGENERIC    (M_AFSFID-3)
  35
  36 /* vfs */
  37 #define osi_vfs         mount
  38 #define osi_vfs_bsize   mnt_stat.f_bsize
  39 #define osi_vfs_fsid    mnt_stat.f_fsid
  40 #define vfs_bsize       mnt_stat.f_bsize
  41 #define vfs_fsid        mnt_stat.f_fsid
  42 #define vfs_vnodecovered mnt_vnodecovered
  43 #define v_vfsp          v_mount
  44
  45 /* vnode */
  46 #define VN_HOLD(vp)     afs_vget((vp), 0)
  47 #define VN_RELE(vp)     vrele(vp)
  48 #define osi_vnhold(avc, r) afs_vget(AFSTOV(avc), 0)
  49 #define va_nodeid       va_fileid
  50 #define vnode_t         struct vnode
  51
  52 /* uio */
  53 #define afsio_iov       uio_iov
  54 #define afsio_iovcnt    uio_iovcnt
  55 #define afsio_offset    uio_offset
  56 #define afsio_resid     uio_resid
  57 #define afsio_seg       uio_segflg
  58 #define AFS_UIOSYS      UIO_SYSSPACE
  59 #define AFS_UIOUSER     UIO_USERSPACE
  60
  61 /* malloc */
  62 inline void afs_osi_Free(void *buf, size_t asize);
  63 inline void afs_osi_FreeStr(char *x);
  64 extern void *osi_obsd_Alloc(size_t asize, int cansleep);
  65 extern void osi_obsd_Free(void *p, size_t asize);
  66
  67 #ifdef AFS_KALLOC
  68 #undef AFS_KALLOC
  69 #endif
  70 #define AFS_KALLOC(s) osi_obsd_Alloc((s), 1 /* cansleep */)
  71
  72 #ifdef AFS_KFREE
  73 #undef AFS_KFREE
  74 #endif
  75 #define AFS_KFREE(p, s) (osi_obsd_Free((p), (s)))
  76
  77 #ifdef AFS_OBSD42_ENV
  78 /* removed, live with it */
  79 #define BSD_KMALLOC(p, ptype, msize, mtype, mflags)     \
  80   (p) = malloc((msize), (mtype), (mflags))
  81
  82 #define BSD_KFREE(p, mflags) \
  83   free((p), (mflags))
  84 #else
  85 #define BSD_KMALLOC MALLOC
  86 #define BSD_KFREE FREE
  87 #endif /* AFS_OBSD42_ENV */
  88
  89 /* proc, cred */
  90 typedef struct proc afs_proc_t;
  91 typedef struct ucred afs_ucred_t;
  92
  93 #define afs_suser(x)    afs_osi_suser(osi_curcred())
  94 #define getpid()        curproc
  95 #define osi_curcred()   (curproc->p_cred->pc_ucred)
  96 #define osi_curproc()   curproc
  97 #define p_rcred         p_ucred
  98
  99 /* time */
 100 #define afs_hz          hz
 101 #define osi_GetTime(x)  microtime(x)
 102 extern time_t osi_Time();
 103
 104 /* str */
 105 #define afs_strcasecmp(s1, s2)  strncasecmp((s1), (s2), 65535)
 106 #ifdef AFS_OBSD34_ENV
 107 #define strcpy(s1, s2)          afs_strcpy((s1), (s2))
 108 #define strcat(s1, s2)          afs_strcat((s1), (s2))
 109 #else
 110 #define afs_strcat(s1, s2)      strcat((s1), (s2))
 111 #endif
 112
 113 /* other */
 114 #define afs_bufferpages bufpages
 115 #ifndef iodone
 116 #define iodone biodone
 117 #endif
 118 #define printk          printf  /* for RX version of xdr_* */
 119 #define setgroups       sys_setgroups
 120 #define UVM
 121
 122 /* This is not always in scope yet */
 123 struct vcache;
 124
 125 extern int afs_obsd_lookupname(char *fnamep, enum uio_seg segflg,
 126                                int followlink, struct vnode **compvpp);
 127 extern void afs_obsd_getnewvnode(struct vcache *tvc);
 128 extern void *afs_obsd_Alloc(size_t asize);
 129 extern void afs_obsd_Free(void *p, size_t asize);
 130 extern int afs_vget();
 131
 132 #undef gop_lookupname
 133 #define gop_lookupname(fnamep, segflg, followlink, compvpp) \
 134         afs_obsd_lookupname((fnamep), (segflg), (followlink), (compvpp))
 135
 136 #undef gop_lookupname_user
 137 #define gop_lookupname_user(fnamep, segflg, followlink, compvpp) \
 138         afs_obsd_lookupname((fnamep), (segflg), (followlink), (compvpp))
 139
 140 #ifdef AFS_OBSD39_ENV
 141 #define afs_osi_lockmgr(l, f, i, p) lockmgr((l), (f), (i))
 142 #else
 143 #define afs_osi_lockmgr(l, f, i, p) lockmgr((l), (f), (i), (p))
 144 #endif
 145
 146 #ifdef AFS_OBSD44_ENV
 147 /* Revert to classical, BSD locks */
 148
 149 extern struct lock afs_global_lock;
 150 extern struct proc *afs_global_owner;
 151
 152 # ifdef AFS_GLOBAL_SUNLOCK
 153
 154 #  if defined(LOCKDEBUG)
 155
 156 #   define AFS_GLOCK() \
 157   do { \
 158   _lockmgr(&afs_global_lock, LK_EXCLUSIVE, NULL, __FILE__, __LINE__); \
 159   } while(0);
 160 #   define AFS_GUNLOCK() \
 161   do { \
 162   _lockmgr(&afs_global_lock, LK_RELEASE, NULL, __FILE__, __LINE__); \
 163   } while(0);
 164
 165 #  else /* LOCKDEBUG */
 166
 167 #   define AFS_GLOCK() \
 168   do { \
 169   lockmgr(&afs_global_lock, LK_EXCLUSIVE, NULL); \
 170   } while(0);
 171 #   define AFS_GUNLOCK() \
 172   do { \
 173   lockmgr(&afs_global_lock, LK_RELEASE, NULL); \
 174   } while(0);
 175 #  endif /* LOCKDEBUG */
 176 #  define ISAFS_GLOCK() (lockstatus(&afs_global_lock) == LK_EXCLUSIVE)
 177 # else /* AFS_GLOBAL_SUNLOCK */
 178 extern struct lock afs_global_lock;
 179 #  define AFS_GLOCK()
 180 #  define AFS_GUNLOCK()
 181 #  define AFS_ASSERT_GLOCK()
 182 #  define ISAFS_GLOCK() 1
 183 # endif
 184
 185 #else /* AFS_OBSD44_ENV */
 186 /* I don't see doing locks this way for older kernels, either,
 187  * but, smart folks wrote this
 188  */
 189 #define AFS_GLOCK() AFS_GLOCKP(curproc)
 190 #define AFS_GUNLOCK() AFS_GUNLOCKP(curproc)
 191 # ifdef AFS_GLOBAL_SUNLOCK
 192 extern struct proc *afs_global_owner;
 193 extern struct lock afs_global_lock;
 194 #  define AFS_GLOCKP(p) \
 195     do { \
 196         osi_Assert(p); \
 197         afs_osi_lockmgr(&afs_global_lock, LK_EXCLUSIVE, 0, (p)); \
 198         osi_Assert(afs_global_owner == NULL); \
 199         afs_global_owner = (p); \
 200     } while (0)
 201 #  define AFS_GUNLOCKP(p) \
 202     do { \
 203         osi_Assert(p); \
 204         osi_Assert(afs_global_owner == (p)); \
 205         afs_global_owner = NULL; \
 206         afs_osi_lockmgr(&afs_global_lock, LK_RELEASE, 0, (p)); \
 207     } while(0)
 208 #  define ISAFS_GLOCK() (afs_global_owner == curproc && curproc)
 209 # else /* AFS_GLOBAL_SUNLOCK */
 210 extern struct lock afs_global_lock;
 211 #  define AFS_GLOCKP(p)
 212 #  define AFS_GUNLOCKP(p)
 213 #  define AFS_ASSERT_GLOCK()
 214 #  define ISAFS_GLOCK() 1
 215 # endif
 216
 217 #endif /* AFS_OBSD44_ENV */
 218
 219 #undef SPLVAR
 220 #define SPLVAR int splvar
 221 #undef NETPRI
 222 #define NETPRI splvar=splnet()
 223 #undef USERPRI
 224 #define USERPRI splx(splvar)
 225
 226 #define osi_InitGlock() \
 227     do { \
 228         lockinit(&afs_global_lock, PLOCK, "afs global lock", 0, 0); \
 229         afs_global_owner = 0; \
 230     } while (0)
 231
 232 /* vnodes */
 233 #if defined(AFS_OBSD49_ENV)
 234 extern struct vops afs_vops;
 235 #define IsAfsVnode(v)      ((v)->v_op == &afs_vops)
 236 #else
 237 extern int (**afs_vnodeop_p) ();
 238 #define IsAfsVnode(v)      ((v)->v_op == afs_vnodeop_p)
 239 #endif
 240 #define vType(vc)               AFSTOV(vc)->v_type
 241 #define vSetVfsp(vc, vfsp)      AFSTOV(vc)->v_mount = (vfsp)
 242 #define vSetType(vc, type)      AFSTOV(vc)->v_type = (type)
 243 #define SetAfsVnode(v)     /* nothing; done in getnewvnode() */
 244
 245 #define osi_procname(procname, size) strncpy(procname, curproc->p_comm, size)
 246
 247 #endif /* _OSI_MACHDEP_H_ */