2 * Copyright 2000, International Business Machines Corporation and others.
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
11 * afs_util.c - miscellaneous AFS client utility functions
15 #include <afsconfig.h>
16 #include "afs/param.h"
20 #include "afs/sysincludes.h" /* Standard vendor system headers */
23 #if !defined(AFS_LINUX20_ENV)
26 #include <netinet/in.h>
29 #include "h/hashing.h"
31 #if !defined(AFS_HPUX110_ENV) && !defined(AFS_LINUX20_ENV) && !defined(AFS_DARWIN_ENV)
32 #include <netinet/in_var.h>
33 #endif /* ! AFS_HPUX110_ENV */
34 #endif /* !defined(UKERNEL) */
36 #include "afsincludes.h" /* Afs-based standard headers */
37 #include "afs/afs_stats.h" /* afs statistics */
39 #ifdef AFS_LINUX20_ENV
40 #include "hcrypto/md5.h"
43 #if defined(AFS_SUN56_ENV)
45 #include <inet/common.h>
46 #if defined(AFS_SUN58_ENV)
47 #include <netinet/ip6.h>
52 #if defined(AFS_AIX_ENV)
53 #include <sys/fp_io.h>
56 afs_int32 afs_new_inum = 0;
60 afs_cv2string(char *ttp, afs_uint32 aval)
66 AFS_STATCNT(afs_cv2string);
82 /* not a generic strtoul replacement. for vol/vno/uniq, portable */
85 afs_strtoi_r(const char *str, char **endptr, afs_uint32 *ret)
90 *endptr = (char *)str;
95 for (x = (char *)str; *x >= '0' && *x <= '9'; x++) {
96 /* Check for impending overflow */
97 if (*ret > 429496729) { /* ULONG_MAX/10 */
99 *endptr = (char *)str;
103 *ret = (*ret * 10) + (*x - '0');
110 #ifndef afs_strcasecmp
112 afs_strcasecmp(char *s1, char *s2)
119 if (c1 >= 'A' && c1 <= 'Z')
121 if (c2 >= 'A' && c2 <= 'Z')
133 afs_strcat(char *s1, char *s2)
140 while ((*s1++ = *s2++));
145 #ifdef AFS_OBSD34_ENV
147 afs_strcpy(char *s1, char *s2)
152 while ((*s1++ = *s2++) != '\0');
159 afs_strchr(char *s, int c)
171 afs_strrchr(char *s, int c)
190 n = afs_osi_Alloc(cc);
198 print_internet_address(char *preamble, struct srvAddr *sa, char *postamble,
201 struct server *aserver = sa->server;
205 AFS_STATCNT(print_internet_address);
206 address = ntohl(sa->sa_ip);
207 if (aserver->flags & SRVR_MULTIHOMED) {
208 if (flag == 1) { /* server down mesg */
209 if (!(aserver->flags & SRVR_ISDOWN))
211 " (multi-homed address; other same-host interfaces maybe up)\n";
213 ptr = " (all multi-homed ip addresses down for the server)\n";
214 } else if (flag == 2) { /* server up mesg */
216 " (multi-homed address; other same-host interfaces may still be down)\n";
219 afs_warn("%s%d.%d.%d.%d in cell %s%s%s", preamble, (address >> 24),
220 (address >> 16) & 0xff, (address >> 8) & 0xff, (address) & 0xff,
221 aserver->cell->cellName, postamble, ptr);
222 afs_warnuser("%s%d.%d.%d.%d in cell %s%s%s", preamble, (address >> 24),
223 (address >> 16) & 0xff, (address >> 8) & 0xff,
224 (address) & 0xff, aserver->cell->cellName, postamble, ptr);
226 } /*print_internet_address */
230 /* run everywhere, checking locks */
236 afs_warn("Looking for locked data structures.\n");
237 afs_warn("conn %p, volume %p, user %p, cell %p, server %p\n", &afs_xconn,
238 &afs_xvolume, &afs_xuser, &afs_xcell, &afs_xserver);
241 AFS_STATCNT(afs_CheckLocks);
243 for (i = 0; i < VCSIZE; i++) {
244 for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
245 if (tvc->f.states & CVInit) continue;
246 #ifdef AFS_DARWIN80_ENV
247 if (vnode_isinuse(AFSTOV(tvc), 0))
251 afs_warn("Stat cache entry at %p is held\n", tvc);
252 if (CheckLock(&tvc->lock))
253 afs_warn("Stat entry at %p is locked\n", tvc);
259 for (i = 0; i < afs_cacheFiles; i++) {
260 tdc = afs_indexTable[i];
263 afs_warn("Disk entry %d at %p is held\n", i, tdc);
265 if (afs_indexFlags[i] & IFDataMod)
266 afs_warn("Disk entry %d at %p has IFDataMod flag set.\n", i,
273 struct sa_conn_vector *tcv;
274 for (i = 0; i < NSERVERS; i++) {
275 for (ts = afs_servers[i]; ts; ts = ts->next) {
276 if (ts->flags & SRVR_ISDOWN)
277 afs_warn("Server entry %p is marked down\n", ts);
278 for (sa = ts->addr; sa; sa = sa->next_sa) {
279 for (tcv = sa->conns; tcv; tcv = tcv->next) {
281 afs_warn("conn at %p (server %x) is held\n", tcv,
290 for (i = 0; i < NVOLS; i++) {
291 for (tv = afs_volumes[i]; tv; tv = tv->next) {
292 if (CheckLock(&tv->lock))
293 afs_warn("volume at %p is locked\n", tv);
295 afs_warn("volume at %p is held\n", tv);
302 for (i = 0; i < NUSERS; i++) {
303 for (tu = afs_users[i]; tu; tu = tu->next) {
305 afs_warn("user at %lx is held\n", (unsigned long)tu);
316 AFS_STATCNT(afs_noop);
323 AFS_STATCNT(afs_badop);
324 osi_Panic("afs bad vnode op");
329 * afs_data_pointer_to_int32() - returns least significant afs_int32 of the
330 * given data pointer, without triggering "cast truncates pointer"
331 * warnings. We use this where we explicitly don't care whether a
332 * pointer is truncated -- it loses information where a pointer is
333 * larger than an afs_int32.
337 afs_data_pointer_to_int32(const void *p)
340 afs_int32 i32[sizeof(void *) / sizeof(afs_int32)];
344 int i32_sub; /* subscript of least significant afs_int32 in ip.i32[] */
349 /* used to determine the byte order of the system */
352 char c[sizeof(int) / sizeof(char)];
358 /* little-endian system */
361 /* big-endian system */
362 i32_sub = (sizeof ip.i32 / sizeof ip.i32[0]) - 1;
367 return ip.i32[i32_sub];
370 #ifdef AFS_LINUX20_ENV
373 afs_calc_inum(afs_int32 volume, afs_int32 vnode)
375 afs_int32 ino, vno = vnode;
381 MD5_Update(&ct, &volume, 4);
382 MD5_Update(&ct, &vnode, 4);
383 MD5_Final(digest, &ct);
384 memcpy(&ino, digest, sizeof(afs_int32));
385 ino ^= (ino ^ vno) & 1;
387 ino = (volume << 16) + vnode;
389 ino &= 0x7fffffff; /* Assumes 32 bit ino_t ..... */
396 afs_calc_inum (afs_int32 volume, afs_int32 vnode)
398 return (volume << 16) + vnode;