2 Unix SMB/CIFS implementation.
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Jeremy Allison 1998-2005
6 Copyright (C) Timur Bakeyev 2005
7 Copyright (C) Bjoern Jacke 2006-2007
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #ifdef HAVE_SYS_PRCTL_H
26 #include <sys/prctl.h>
30 The idea is that this file will eventually have wrappers around all
31 important system calls in samba. The aims are:
33 - to enable easier porting by putting OS dependent stuff in here
35 - to allow for hooks into other "pseudo-filesystems"
37 - to allow easier integration of things like the japanese extensions
39 - to support the philosophy of Samba to expose the features of
40 the OS within the SMB model. In general whatever file/printer/variable
41 expansions/etc make sense to the OS should be acceptable to Samba.
46 /*******************************************************************
47 A wrapper for memalign
48 ********************************************************************/
50 void *sys_memalign( size_t align, size_t size )
52 #if defined(HAVE_POSIX_MEMALIGN)
54 int ret = posix_memalign( &p, align, size );
59 #elif defined(HAVE_MEMALIGN)
60 return memalign( align, size );
62 /* On *BSD systems memaligns doesn't exist, but memory will
63 * be aligned on allocations of > pagesize. */
64 #if defined(SYSCONF_SC_PAGESIZE)
65 size_t pagesize = (size_t)sysconf(_SC_PAGESIZE);
66 #elif defined(HAVE_GETPAGESIZE)
67 size_t pagesize = (size_t)getpagesize();
69 size_t pagesize = (size_t)-1;
71 if (pagesize == (size_t)-1) {
72 DEBUG(0,("memalign functionalaity not available on this platform!\n"));
75 if (size < pagesize) {
78 return SMB_MALLOC(size);
82 /*******************************************************************
83 A wrapper for usleep in case we don't have one.
84 ********************************************************************/
86 int sys_usleep(long usecs)
93 * We need this braindamage as the glibc usleep
94 * is not SPEC1170 complient... grumble... JRA.
97 if(usecs < 0 || usecs > 999999) {
105 #else /* HAVE_USLEEP */
107 * Fake it with select...
110 tval.tv_usec = usecs/1000;
111 select(0,NULL,NULL,NULL,&tval);
113 #endif /* HAVE_USLEEP */
116 /*******************************************************************
117 A read wrapper that will deal with EINTR.
118 ********************************************************************/
120 ssize_t sys_read(int fd, void *buf, size_t count)
125 ret = read(fd, buf, count);
126 } while (ret == -1 && errno == EINTR);
130 /*******************************************************************
131 A write wrapper that will deal with EINTR.
132 ********************************************************************/
134 ssize_t sys_write(int fd, const void *buf, size_t count)
139 ret = write(fd, buf, count);
140 } while (ret == -1 && errno == EINTR);
144 /*******************************************************************
145 A writev wrapper that will deal with EINTR.
146 ********************************************************************/
148 ssize_t sys_writev(int fd, const struct iovec *iov, int iovcnt)
153 /* Try to confuse write_data_iov a bit */
154 if ((random() % 5) == 0) {
155 return sys_write(fd, iov[0].iov_base, iov[0].iov_len);
157 if (iov[0].iov_len > 1) {
158 return sys_write(fd, iov[0].iov_base,
159 (random() % (iov[0].iov_len-1)) + 1);
164 ret = writev(fd, iov, iovcnt);
165 } while (ret == -1 && errno == EINTR);
169 /*******************************************************************
170 A pread wrapper that will deal with EINTR and 64-bit file offsets.
171 ********************************************************************/
173 #if defined(HAVE_PREAD) || defined(HAVE_PREAD64)
174 ssize_t sys_pread(int fd, void *buf, size_t count, SMB_OFF_T off)
179 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_PREAD64)
180 ret = pread64(fd, buf, count, off);
182 ret = pread(fd, buf, count, off);
184 } while (ret == -1 && errno == EINTR);
189 /*******************************************************************
190 A write wrapper that will deal with EINTR and 64-bit file offsets.
191 ********************************************************************/
193 #if defined(HAVE_PWRITE) || defined(HAVE_PWRITE64)
194 ssize_t sys_pwrite(int fd, const void *buf, size_t count, SMB_OFF_T off)
199 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_PWRITE64)
200 ret = pwrite64(fd, buf, count, off);
202 ret = pwrite(fd, buf, count, off);
204 } while (ret == -1 && errno == EINTR);
209 /*******************************************************************
210 A send wrapper that will deal with EINTR.
211 ********************************************************************/
213 ssize_t sys_send(int s, const void *msg, size_t len, int flags)
218 ret = send(s, msg, len, flags);
219 } while (ret == -1 && errno == EINTR);
223 /*******************************************************************
224 A sendto wrapper that will deal with EINTR.
225 ********************************************************************/
227 ssize_t sys_sendto(int s, const void *msg, size_t len, int flags, const struct sockaddr *to, socklen_t tolen)
232 ret = sendto(s, msg, len, flags, to, tolen);
233 } while (ret == -1 && errno == EINTR);
237 /*******************************************************************
238 A recv wrapper that will deal with EINTR.
239 ********************************************************************/
241 ssize_t sys_recv(int fd, void *buf, size_t count, int flags)
246 ret = recv(fd, buf, count, flags);
247 } while (ret == -1 && errno == EINTR);
251 /*******************************************************************
252 A recvfrom wrapper that will deal with EINTR.
253 ********************************************************************/
255 ssize_t sys_recvfrom(int s, void *buf, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen)
260 ret = recvfrom(s, buf, len, flags, from, fromlen);
261 } while (ret == -1 && errno == EINTR);
265 /*******************************************************************
266 A fcntl wrapper that will deal with EINTR.
267 ********************************************************************/
269 int sys_fcntl_ptr(int fd, int cmd, void *arg)
274 ret = fcntl(fd, cmd, arg);
275 } while (ret == -1 && errno == EINTR);
279 /*******************************************************************
280 A fcntl wrapper that will deal with EINTR.
281 ********************************************************************/
283 int sys_fcntl_long(int fd, int cmd, long arg)
288 ret = fcntl(fd, cmd, arg);
289 } while (ret == -1 && errno == EINTR);
293 /****************************************************************************
294 Get/Set all the possible time fields from a stat struct as a timespec.
295 ****************************************************************************/
297 static struct timespec get_atimespec(const struct stat *pst)
299 #if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
302 /* Old system - no ns timestamp. */
303 ret.tv_sec = pst->st_atime;
307 #if defined(HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC)
309 #elif defined(HAVE_STRUCT_STAT_ST_MTIMENSEC)
311 ret.tv_sec = pst->st_atime;
312 ret.tv_nsec = pst->st_atimensec;
314 #elif defined(HAVE_STRUCT_STAT_ST_MTIME_N)
316 ret.tv_sec = pst->st_atime;
317 ret.tv_nsec = pst->st_atime_n;
319 #elif defined(HAVE_STRUCT_STAT_ST_UMTIME)
321 ret.tv_sec = pst->st_atime;
322 ret.tv_nsec = pst->st_uatime * 1000;
324 #elif defined(HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC)
325 return pst->st_atimespec;
327 #error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
332 static struct timespec get_mtimespec(const struct stat *pst)
334 #if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
337 /* Old system - no ns timestamp. */
338 ret.tv_sec = pst->st_mtime;
342 #if defined(HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC)
344 #elif defined(HAVE_STRUCT_STAT_ST_MTIMENSEC)
346 ret.tv_sec = pst->st_mtime;
347 ret.tv_nsec = pst->st_mtimensec;
349 #elif defined(HAVE_STRUCT_STAT_ST_MTIME_N)
351 ret.tv_sec = pst->st_mtime;
352 ret.tv_nsec = pst->st_mtime_n;
354 #elif defined(HAVE_STRUCT_STAT_ST_UMTIME)
356 ret.tv_sec = pst->st_mtime;
357 ret.tv_nsec = pst->st_umtime * 1000;
359 #elif defined(HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC)
360 return pst->st_mtimespec;
362 #error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
367 static struct timespec get_ctimespec(const struct stat *pst)
369 #if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
372 /* Old system - no ns timestamp. */
373 ret.tv_sec = pst->st_ctime;
377 #if defined(HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC)
379 #elif defined(HAVE_STRUCT_STAT_ST_MTIMENSEC)
381 ret.tv_sec = pst->st_ctime;
382 ret.tv_nsec = pst->st_ctimensec;
384 #elif defined(HAVE_STRUCT_STAT_ST_MTIME_N)
386 ret.tv_sec = pst->st_ctime;
387 ret.tv_nsec = pst->st_ctime_n;
389 #elif defined(HAVE_STRUCT_STAT_ST_UMTIME)
391 ret.tv_sec = pst->st_ctime;
392 ret.tv_nsec = pst->st_uctime * 1000;
394 #elif defined(HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC)
395 return pst->st_ctimespec;
397 #error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
402 /****************************************************************************
403 Return the best approximation to a 'create time' under UNIX from a stat
405 ****************************************************************************/
407 static struct timespec calc_create_time_stat(const struct stat *st)
409 struct timespec ret, ret1;
410 struct timespec c_time = get_ctimespec(st);
411 struct timespec m_time = get_mtimespec(st);
412 struct timespec a_time = get_atimespec(st);
414 ret = timespec_compare(&c_time, &m_time) < 0 ? c_time : m_time;
415 ret1 = timespec_compare(&ret, &a_time) < 0 ? ret : a_time;
417 if(!null_timespec(ret1)) {
422 * One of ctime, mtime or atime was zero (probably atime).
423 * Just return MIN(ctime, mtime).
428 /****************************************************************************
429 Return the best approximation to a 'create time' under UNIX from a stat_ex
431 ****************************************************************************/
433 static struct timespec calc_create_time_stat_ex(const struct stat_ex *st)
435 struct timespec ret, ret1;
436 struct timespec c_time = st->st_ex_ctime;
437 struct timespec m_time = st->st_ex_mtime;
438 struct timespec a_time = st->st_ex_atime;
440 ret = timespec_compare(&c_time, &m_time) < 0 ? c_time : m_time;
441 ret1 = timespec_compare(&ret, &a_time) < 0 ? ret : a_time;
443 if(!null_timespec(ret1)) {
448 * One of ctime, mtime or atime was zero (probably atime).
449 * Just return MIN(ctime, mtime).
454 /****************************************************************************
455 Return the 'create time' from a stat struct if it exists (birthtime) or else
456 use the best approximation.
457 ****************************************************************************/
459 static void make_create_timespec(const struct stat *pst, struct stat_ex *dst)
461 if (S_ISDIR(pst->st_mode) && lp_fake_dir_create_times()) {
462 dst->st_ex_btime.tv_sec = 315493200L; /* 1/1/1980 */
463 dst->st_ex_btime.tv_nsec = 0;
466 dst->st_ex_calculated_birthtime = false;
468 #if defined(HAVE_STRUCT_STAT_ST_BIRTHTIMESPEC_TV_NSEC)
469 dst->st_ex_btime = pst->st_birthtimespec;
470 #elif defined(HAVE_STRUCT_STAT_ST_BIRTHTIMENSEC)
471 dst->st_ex_btime.tv_sec = pst->st_birthtime;
472 dst->st_ex_btime.tv_nsec = pst->st_birthtimenspec;
473 #elif defined(HAVE_STRUCT_STAT_ST_BIRTHTIME)
474 dst->st_ex_btime.tv_sec = pst->st_birthtime;
475 dst->st_ex_btime.tv_nsec = 0;
477 dst->st_ex_btime = calc_create_time_stat(pst);
478 dst->st_ex_calculated_birthtime = true;
481 /* Deal with systems that don't initialize birthtime correctly.
482 * Pointed out by SATOH Fumiyasu <fumiyas@osstech.jp>.
484 if (null_timespec(dst->st_ex_btime)) {
485 dst->st_ex_btime = calc_create_time_stat(pst);
486 dst->st_ex_calculated_birthtime = true;
490 /****************************************************************************
491 If we update a timestamp in a stat_ex struct we may have to recalculate
492 the birthtime. For now only implement this for write time, but we may
493 also need to do it for atime and ctime. JRA.
494 ****************************************************************************/
496 void update_stat_ex_mtime(struct stat_ex *dst,
497 struct timespec write_ts)
499 dst->st_ex_mtime = write_ts;
501 /* We may have to recalculate btime. */
502 if (dst->st_ex_calculated_birthtime) {
503 dst->st_ex_btime = calc_create_time_stat_ex(dst);
507 void update_stat_ex_create_time(struct stat_ex *dst,
508 struct timespec create_time)
510 dst->st_ex_btime = create_time;
511 dst->st_ex_calculated_birthtime = false;
514 static void init_stat_ex_from_stat (struct stat_ex *dst,
515 const struct stat *src)
517 dst->st_ex_dev = src->st_dev;
518 dst->st_ex_ino = src->st_ino;
519 dst->st_ex_mode = src->st_mode;
520 dst->st_ex_nlink = src->st_nlink;
521 dst->st_ex_uid = src->st_uid;
522 dst->st_ex_gid = src->st_gid;
523 dst->st_ex_rdev = src->st_rdev;
524 dst->st_ex_size = src->st_size;
525 dst->st_ex_atime = get_atimespec(src);
526 dst->st_ex_mtime = get_mtimespec(src);
527 dst->st_ex_ctime = get_ctimespec(src);
528 make_create_timespec(src, dst);
529 dst->st_ex_blksize = src->st_blksize;
530 dst->st_ex_blocks = src->st_blocks;
532 #ifdef HAVE_STAT_ST_FLAGS
533 dst->st_ex_flags = src->st_flags;
535 dst->st_ex_flags = 0;
539 /*******************************************************************
540 A stat() wrapper that will deal with 64 bit filesizes.
541 ********************************************************************/
543 int sys_stat(const char *fname,SMB_STRUCT_STAT *sbuf)
546 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_STAT64)
547 ret = stat64(fname, sbuf);
550 ret = stat(fname, &statbuf);
553 /* we always want directories to appear zero size */
554 if (S_ISDIR(statbuf.st_mode)) {
557 init_stat_ex_from_stat(sbuf, &statbuf);
562 /*******************************************************************
563 An fstat() wrapper that will deal with 64 bit filesizes.
564 ********************************************************************/
566 int sys_fstat(int fd,SMB_STRUCT_STAT *sbuf)
569 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_FSTAT64)
570 ret = fstat64(fd, sbuf);
573 ret = fstat(fd, &statbuf);
576 /* we always want directories to appear zero size */
577 if (S_ISDIR(statbuf.st_mode)) {
580 init_stat_ex_from_stat(sbuf, &statbuf);
585 /*******************************************************************
586 An lstat() wrapper that will deal with 64 bit filesizes.
587 ********************************************************************/
589 int sys_lstat(const char *fname,SMB_STRUCT_STAT *sbuf)
592 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_LSTAT64)
593 ret = lstat64(fname, sbuf);
596 ret = lstat(fname, &statbuf);
599 /* we always want directories to appear zero size */
600 if (S_ISDIR(statbuf.st_mode)) {
603 init_stat_ex_from_stat(sbuf, &statbuf);
608 /*******************************************************************
609 An ftruncate() wrapper that will deal with 64 bit filesizes.
610 ********************************************************************/
612 int sys_ftruncate(int fd, SMB_OFF_T offset)
614 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_FTRUNCATE64)
615 return ftruncate64(fd, offset);
617 return ftruncate(fd, offset);
621 /*******************************************************************
622 An lseek() wrapper that will deal with 64 bit filesizes.
623 ********************************************************************/
625 SMB_OFF_T sys_lseek(int fd, SMB_OFF_T offset, int whence)
627 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_LSEEK64)
628 return lseek64(fd, offset, whence);
630 return lseek(fd, offset, whence);
634 /*******************************************************************
635 An fseek() wrapper that will deal with 64 bit filesizes.
636 ********************************************************************/
638 int sys_fseek(FILE *fp, SMB_OFF_T offset, int whence)
640 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(LARGE_SMB_OFF_T) && defined(HAVE_FSEEK64)
641 return fseek64(fp, offset, whence);
642 #elif defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(LARGE_SMB_OFF_T) && defined(HAVE_FSEEKO64)
643 return fseeko64(fp, offset, whence);
645 return fseek(fp, offset, whence);
649 /*******************************************************************
650 An ftell() wrapper that will deal with 64 bit filesizes.
651 ********************************************************************/
653 SMB_OFF_T sys_ftell(FILE *fp)
655 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(LARGE_SMB_OFF_T) && defined(HAVE_FTELL64)
656 return (SMB_OFF_T)ftell64(fp);
657 #elif defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(LARGE_SMB_OFF_T) && defined(HAVE_FTELLO64)
658 return (SMB_OFF_T)ftello64(fp);
660 return (SMB_OFF_T)ftell(fp);
664 /*******************************************************************
665 A creat() wrapper that will deal with 64 bit filesizes.
666 ********************************************************************/
668 int sys_creat(const char *path, mode_t mode)
670 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_CREAT64)
671 return creat64(path, mode);
674 * If creat64 isn't defined then ensure we call a potential open64.
677 return sys_open(path, O_WRONLY | O_CREAT | O_TRUNC, mode);
681 /*******************************************************************
682 An open() wrapper that will deal with 64 bit filesizes.
683 ********************************************************************/
685 int sys_open(const char *path, int oflag, mode_t mode)
687 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OPEN64)
688 return open64(path, oflag, mode);
690 return open(path, oflag, mode);
694 /*******************************************************************
695 An fopen() wrapper that will deal with 64 bit filesizes.
696 ********************************************************************/
698 FILE *sys_fopen(const char *path, const char *type)
700 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_FOPEN64)
701 return fopen64(path, type);
703 return fopen(path, type);
708 /*******************************************************************
709 A flock() wrapper that will perform the kernel flock.
710 ********************************************************************/
712 void kernel_flock(int fd, uint32 share_mode, uint32 access_mask)
714 #if HAVE_KERNEL_SHARE_MODES
716 if (share_mode == FILE_SHARE_WRITE) {
717 kernel_mode = LOCK_MAND|LOCK_WRITE;
718 } else if (share_mode == FILE_SHARE_READ) {
719 kernel_mode = LOCK_MAND|LOCK_READ;
720 } else if (share_mode == FILE_SHARE_NONE) {
721 kernel_mode = LOCK_MAND;
724 flock(fd, kernel_mode);
732 /*******************************************************************
733 An opendir wrapper that will deal with 64 bit filesizes.
734 ********************************************************************/
736 SMB_STRUCT_DIR *sys_opendir(const char *name)
738 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OPENDIR64)
739 return opendir64(name);
741 return opendir(name);
745 /*******************************************************************
746 A readdir wrapper that will deal with 64 bit filesizes.
747 ********************************************************************/
749 SMB_STRUCT_DIRENT *sys_readdir(SMB_STRUCT_DIR *dirp)
751 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_READDIR64)
752 return readdir64(dirp);
754 return readdir(dirp);
758 /*******************************************************************
759 A seekdir wrapper that will deal with 64 bit filesizes.
760 ********************************************************************/
762 void sys_seekdir(SMB_STRUCT_DIR *dirp, long offset)
764 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_SEEKDIR64)
765 seekdir64(dirp, offset);
767 seekdir(dirp, offset);
771 /*******************************************************************
772 A telldir wrapper that will deal with 64 bit filesizes.
773 ********************************************************************/
775 long sys_telldir(SMB_STRUCT_DIR *dirp)
777 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_TELLDIR64)
778 return (long)telldir64(dirp);
780 return (long)telldir(dirp);
784 /*******************************************************************
785 A rewinddir wrapper that will deal with 64 bit filesizes.
786 ********************************************************************/
788 void sys_rewinddir(SMB_STRUCT_DIR *dirp)
790 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_REWINDDIR64)
797 /*******************************************************************
798 A close wrapper that will deal with 64 bit filesizes.
799 ********************************************************************/
801 int sys_closedir(SMB_STRUCT_DIR *dirp)
803 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_CLOSEDIR64)
804 return closedir64(dirp);
806 return closedir(dirp);
810 /*******************************************************************
811 An mknod() wrapper that will deal with 64 bit filesizes.
812 ********************************************************************/
814 int sys_mknod(const char *path, mode_t mode, SMB_DEV_T dev)
816 #if defined(HAVE_MKNOD) || defined(HAVE_MKNOD64)
817 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_MKNOD64) && defined(HAVE_DEV64_T)
818 return mknod64(path, mode, dev);
820 return mknod(path, mode, dev);
823 /* No mknod system call. */
829 /*******************************************************************
830 The wait() calls vary between systems
831 ********************************************************************/
833 int sys_waitpid(pid_t pid,int *status,int options)
836 return waitpid(pid,status,options);
837 #else /* HAVE_WAITPID */
838 return wait4(pid, status, options, NULL);
839 #endif /* HAVE_WAITPID */
842 /*******************************************************************
843 System wrapper for getwd
844 ********************************************************************/
846 char *sys_getwd(char *s)
850 wd = (char *)getcwd(s, PATH_MAX);
852 wd = (char *)getwd(s);
857 #if defined(HAVE_POSIX_CAPABILITIES)
859 /**************************************************************************
860 Try and abstract process capabilities (for systems that have them).
861 ****************************************************************************/
863 /* Set the POSIX capabilities needed for the given purpose into the effective
864 * capability set of the current process. Make sure they are always removed
865 * from the inheritable set, because there is no circumstance in which our
866 * children should inherit our elevated privileges.
868 static bool set_process_capability(enum smbd_capability capability,
871 cap_value_t cap_vals[2] = {0};
872 int num_cap_vals = 0;
876 #if defined(HAVE_PRCTL) && defined(PR_GET_KEEPCAPS) && defined(PR_SET_KEEPCAPS)
877 /* On Linux, make sure that any capabilities we grab are sticky
878 * across UID changes. We expect that this would allow us to keep both
879 * the effective and permitted capability sets, but as of circa 2.6.16,
880 * only the permitted set is kept. It is a bug (which we work around)
881 * that the effective set is lost, but we still require the effective
884 if (!prctl(PR_GET_KEEPCAPS)) {
885 prctl(PR_SET_KEEPCAPS, 1);
889 cap = cap_get_proc();
891 DEBUG(0,("set_process_capability: cap_get_proc failed: %s\n",
896 switch (capability) {
897 case KERNEL_OPLOCK_CAPABILITY:
898 #ifdef CAP_NETWORK_MGT
899 /* IRIX has CAP_NETWORK_MGT for oplocks. */
900 cap_vals[num_cap_vals++] = CAP_NETWORK_MGT;
903 case DMAPI_ACCESS_CAPABILITY:
904 #ifdef CAP_DEVICE_MGT
905 /* IRIX has CAP_DEVICE_MGT for DMAPI access. */
906 cap_vals[num_cap_vals++] = CAP_DEVICE_MGT;
908 /* Linux has CAP_MKNOD for DMAPI access. */
909 cap_vals[num_cap_vals++] = CAP_MKNOD;
912 case LEASE_CAPABILITY:
914 cap_vals[num_cap_vals++] = CAP_LEASE;
919 SMB_ASSERT(num_cap_vals <= ARRAY_SIZE(cap_vals));
921 if (num_cap_vals == 0) {
926 cap_set_flag(cap, CAP_EFFECTIVE, num_cap_vals, cap_vals,
927 enable ? CAP_SET : CAP_CLEAR);
929 /* We never want to pass capabilities down to our children, so make
930 * sure they are not inherited.
932 cap_set_flag(cap, CAP_INHERITABLE, num_cap_vals, cap_vals, CAP_CLEAR);
934 if (cap_set_proc(cap) == -1) {
935 DEBUG(0, ("set_process_capability: cap_set_proc failed: %s\n",
945 #endif /* HAVE_POSIX_CAPABILITIES */
947 /****************************************************************************
948 Gain the oplock capability from the kernel if possible.
949 ****************************************************************************/
951 void set_effective_capability(enum smbd_capability capability)
953 #if defined(HAVE_POSIX_CAPABILITIES)
954 set_process_capability(capability, True);
955 #endif /* HAVE_POSIX_CAPABILITIES */
958 void drop_effective_capability(enum smbd_capability capability)
960 #if defined(HAVE_POSIX_CAPABILITIES)
961 set_process_capability(capability, False);
962 #endif /* HAVE_POSIX_CAPABILITIES */
965 /**************************************************************************
966 Wrapper for random().
967 ****************************************************************************/
969 long sys_random(void)
971 #if defined(HAVE_RANDOM)
972 return (long)random();
973 #elif defined(HAVE_RAND)
976 DEBUG(0,("Error - no random function available !\n"));
981 /**************************************************************************
982 Wrapper for srandom().
983 ****************************************************************************/
985 void sys_srandom(unsigned int seed)
987 #if defined(HAVE_SRANDOM)
989 #elif defined(HAVE_SRAND)
992 DEBUG(0,("Error - no srandom function available !\n"));
997 /**************************************************************************
998 Returns equivalent to NGROUPS_MAX - using sysconf if needed.
999 ****************************************************************************/
1001 int groups_max(void)
1003 #if defined(SYSCONF_SC_NGROUPS_MAX)
1004 int ret = sysconf(_SC_NGROUPS_MAX);
1005 return (ret == -1) ? NGROUPS_MAX : ret;
1011 /**************************************************************************
1012 Wrap setgroups and getgroups for systems that declare getgroups() as
1013 returning an array of gid_t, but actuall return an array of int.
1014 ****************************************************************************/
1016 #if defined(HAVE_BROKEN_GETGROUPS)
1017 static int sys_broken_getgroups(int setlen, gid_t *gidset)
1024 return getgroups(setlen, &gid);
1028 * Broken case. We need to allocate a
1029 * GID_T array of size setlen.
1038 setlen = groups_max();
1040 if((group_list = SMB_MALLOC_ARRAY(GID_T, setlen)) == NULL) {
1041 DEBUG(0,("sys_getgroups: Malloc fail.\n"));
1045 if((ngroups = getgroups(setlen, group_list)) < 0) {
1046 int saved_errno = errno;
1047 SAFE_FREE(group_list);
1048 errno = saved_errno;
1052 for(i = 0; i < ngroups; i++)
1053 gidset[i] = (gid_t)group_list[i];
1055 SAFE_FREE(group_list);
1059 static int sys_broken_setgroups(int setlen, gid_t *gidset)
1067 if (setlen < 0 || setlen > groups_max()) {
1073 * Broken case. We need to allocate a
1074 * GID_T array of size setlen.
1077 if((group_list = SMB_MALLOC_ARRAY(GID_T, setlen)) == NULL) {
1078 DEBUG(0,("sys_setgroups: Malloc fail.\n"));
1082 for(i = 0; i < setlen; i++)
1083 group_list[i] = (GID_T) gidset[i];
1085 if(setgroups(setlen, group_list) != 0) {
1086 int saved_errno = errno;
1087 SAFE_FREE(group_list);
1088 errno = saved_errno;
1092 SAFE_FREE(group_list);
1096 #endif /* HAVE_BROKEN_GETGROUPS */
1098 /* This is a list of systems that require the first GID passed to setgroups(2)
1099 * to be the effective GID. If your system is one of these, add it here.
1101 #if defined (FREEBSD) || defined (DARWINOS)
1102 #define USE_BSD_SETGROUPS
1105 #if defined(USE_BSD_SETGROUPS)
1106 /* Depending on the particular BSD implementation, the first GID that is
1107 * passed to setgroups(2) will either be ignored or will set the credential's
1108 * effective GID. In either case, the right thing to do is to guarantee that
1109 * gidset[0] is the effective GID.
1111 static int sys_bsd_setgroups(gid_t primary_gid, int setlen, const gid_t *gidset)
1113 gid_t *new_gidset = NULL;
1117 /* setgroups(2) will fail with EINVAL if we pass too many groups. */
1120 /* No group list, just make sure we are setting the efective GID. */
1122 return setgroups(1, &primary_gid);
1125 /* If the primary gid is not the first array element, grow the array
1126 * and insert it at the front.
1128 if (gidset[0] != primary_gid) {
1129 new_gidset = SMB_MALLOC_ARRAY(gid_t, setlen + 1);
1130 if (new_gidset == NULL) {
1134 memcpy(new_gidset + 1, gidset, (setlen * sizeof(gid_t)));
1135 new_gidset[0] = primary_gid;
1140 DEBUG(3, ("forced to truncate group list from %d to %d\n",
1145 #if defined(HAVE_BROKEN_GETGROUPS)
1146 ret = sys_broken_setgroups(setlen, new_gidset ? new_gidset : gidset);
1148 ret = setgroups(setlen, new_gidset ? new_gidset : gidset);
1153 SAFE_FREE(new_gidset);
1160 #endif /* USE_BSD_SETGROUPS */
1162 /**************************************************************************
1163 Wrapper for getgroups. Deals with broken (int) case.
1164 ****************************************************************************/
1166 int sys_getgroups(int setlen, gid_t *gidset)
1168 #if defined(HAVE_BROKEN_GETGROUPS)
1169 return sys_broken_getgroups(setlen, gidset);
1171 return getgroups(setlen, gidset);
1175 /**************************************************************************
1176 Wrapper for setgroups. Deals with broken (int) case and BSD case.
1177 ****************************************************************************/
1179 int sys_setgroups(gid_t UNUSED(primary_gid), int setlen, gid_t *gidset)
1181 #if !defined(HAVE_SETGROUPS)
1184 #endif /* HAVE_SETGROUPS */
1186 #if defined(USE_BSD_SETGROUPS)
1187 return sys_bsd_setgroups(primary_gid, setlen, gidset);
1188 #elif defined(HAVE_BROKEN_GETGROUPS)
1189 return sys_broken_setgroups(setlen, gidset);
1191 return setgroups(setlen, gidset);
1195 /**************************************************************************
1196 Wrappers for setpwent(), getpwent() and endpwent()
1197 ****************************************************************************/
1199 void sys_setpwent(void)
1204 struct passwd *sys_getpwent(void)
1209 void sys_endpwent(void)
1214 /**************************************************************************
1215 Wrappers for getpwnam(), getpwuid(), getgrnam(), getgrgid()
1216 ****************************************************************************/
1219 struct passwd *sys_getpwnam(const char *name)
1221 return getpwnam(name);
1224 struct passwd *sys_getpwuid(uid_t uid)
1226 return getpwuid(uid);
1229 struct group *sys_getgrnam(const char *name)
1231 return getgrnam(name);
1234 struct group *sys_getgrgid(gid_t gid)
1236 return getgrgid(gid);
1239 /**************************************************************************
1240 Extract a command into an arg list.
1241 ****************************************************************************/
1243 static char **extract_args(TALLOC_CTX *mem_ctx, const char *command)
1252 if (!(trunc_cmd = talloc_strdup(mem_ctx, command))) {
1253 DEBUG(0, ("talloc failed\n"));
1257 if(!(ptr = strtok_r(trunc_cmd, " \t", &saveptr))) {
1258 TALLOC_FREE(trunc_cmd);
1267 for( argcl = 1; ptr; ptr = strtok_r(NULL, " \t", &saveptr))
1270 TALLOC_FREE(trunc_cmd);
1272 if (!(argl = TALLOC_ARRAY(mem_ctx, char *, argcl + 1))) {
1277 * Now do the extraction.
1280 if (!(trunc_cmd = talloc_strdup(mem_ctx, command))) {
1284 ptr = strtok_r(trunc_cmd, " \t", &saveptr);
1287 if (!(argl[i++] = talloc_strdup(argl, ptr))) {
1291 while((ptr = strtok_r(NULL, " \t", &saveptr)) != NULL) {
1293 if (!(argl[i++] = talloc_strdup(argl, ptr))) {
1299 TALLOC_FREE(trunc_cmd);
1303 DEBUG(0, ("talloc failed\n"));
1304 TALLOC_FREE(trunc_cmd);
1310 /**************************************************************************
1311 Wrapper for popen. Safer as it doesn't search a path.
1312 Modified from the glibc sources.
1313 modified by tridge to return a file descriptor. We must kick our FILE* habit
1314 ****************************************************************************/
1316 typedef struct _popen_list
1320 struct _popen_list *next;
1323 static popen_list *popen_chain;
1325 int sys_popen(const char *command)
1327 int parent_end, child_end;
1329 popen_list *entry = NULL;
1332 if (pipe(pipe_fds) < 0)
1335 parent_end = pipe_fds[0];
1336 child_end = pipe_fds[1];
1343 if((entry = SMB_MALLOC_P(popen_list)) == NULL)
1346 ZERO_STRUCTP(entry);
1349 * Extract the command and args into a NULL terminated array.
1352 if(!(argl = extract_args(NULL, command)))
1355 entry->child_pid = sys_fork();
1357 if (entry->child_pid == -1) {
1361 if (entry->child_pid == 0) {
1367 int child_std_end = STDOUT_FILENO;
1371 if (child_end != child_std_end) {
1372 dup2 (child_end, child_std_end);
1377 * POSIX.2: "popen() shall ensure that any streams from previous
1378 * popen() calls that remain open in the parent process are closed
1379 * in the new child process."
1382 for (p = popen_chain; p; p = p->next)
1385 execv(argl[0], argl);
1396 /* Link into popen_chain. */
1397 entry->next = popen_chain;
1398 popen_chain = entry;
1399 entry->fd = parent_end;
1412 /**************************************************************************
1413 Wrapper for pclose. Modified from the glibc sources.
1414 ****************************************************************************/
1416 int sys_pclose(int fd)
1419 popen_list **ptr = &popen_chain;
1420 popen_list *entry = NULL;
1424 /* Unlink from popen_chain. */
1425 for ( ; *ptr != NULL; ptr = &(*ptr)->next) {
1426 if ((*ptr)->fd == fd) {
1428 *ptr = (*ptr)->next;
1434 if (status < 0 || close(entry->fd) < 0)
1438 * As Samba is catching and eating child process
1439 * exits we don't really care about the child exit
1440 * code, a -1 with errno = ECHILD will do fine for us.
1444 wait_pid = sys_waitpid (entry->child_pid, &wstatus, 0);
1445 } while (wait_pid == -1 && errno == EINTR);
1454 /**************************************************************************
1455 Wrapper for Admin Logs.
1456 ****************************************************************************/
1458 void sys_adminlog(int priority, const char *format_str, ...)
1462 char *msgbuf = NULL;
1464 va_start( ap, format_str );
1465 ret = vasprintf( &msgbuf, format_str, ap );
1471 #if defined(HAVE_SYSLOG)
1472 syslog( priority, "%s", msgbuf );
1474 DEBUG(0,("%s", msgbuf ));
1479 /******** Solaris EA helper function prototypes ********/
1480 #ifdef HAVE_ATTROPEN
1481 #define SOLARIS_ATTRMODE S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP
1482 static int solaris_write_xattr(int attrfd, const char *value, size_t size);
1483 static ssize_t solaris_read_xattr(int attrfd, void *value, size_t size);
1484 static ssize_t solaris_list_xattr(int attrdirfd, char *list, size_t size);
1485 static int solaris_unlinkat(int attrdirfd, const char *name);
1486 static int solaris_attropen(const char *path, const char *attrpath, int oflag, mode_t mode);
1487 static int solaris_openat(int fildes, const char *path, int oflag, mode_t mode);
1490 /**************************************************************************
1491 Wrappers for extented attribute calls. Based on the Linux package with
1492 support for IRIX and (Net|Free)BSD also. Expand as other systems have them.
1493 ****************************************************************************/
1495 ssize_t sys_getxattr (const char *path, const char *name, void *value, size_t size)
1497 #if defined(HAVE_GETXATTR)
1498 #ifndef XATTR_ADD_OPT
1499 return getxattr(path, name, value, size);
1502 return getxattr(path, name, value, size, 0, options);
1504 #elif defined(HAVE_GETEA)
1505 return getea(path, name, value, size);
1506 #elif defined(HAVE_EXTATTR_GET_FILE)
1509 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1510 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1511 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1513 * The BSD implementation has a nasty habit of silently truncating
1514 * the returned value to the size of the buffer, so we have to check
1515 * that the buffer is large enough to fit the returned value.
1517 if((retval=extattr_get_file(path, attrnamespace, attrname, NULL, 0)) >= 0) {
1522 if((retval=extattr_get_file(path, attrnamespace, attrname, value, size)) >= 0)
1526 DEBUG(10,("sys_getxattr: extattr_get_file() failed with: %s\n", strerror(errno)));
1528 #elif defined(HAVE_ATTR_GET)
1529 int retval, flags = 0;
1530 int valuelength = (int)size;
1531 char *attrname = strchr(name,'.') + 1;
1533 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1535 retval = attr_get(path, attrname, (char *)value, &valuelength, flags);
1537 return retval ? retval : valuelength;
1538 #elif defined(HAVE_ATTROPEN)
1540 int attrfd = solaris_attropen(path, name, O_RDONLY, 0);
1542 ret = solaris_read_xattr(attrfd, value, size);
1552 ssize_t sys_lgetxattr (const char *path, const char *name, void *value, size_t size)
1554 #if defined(HAVE_LGETXATTR)
1555 return lgetxattr(path, name, value, size);
1556 #elif defined(HAVE_GETXATTR) && defined(XATTR_ADD_OPT)
1557 int options = XATTR_NOFOLLOW;
1558 return getxattr(path, name, value, size, 0, options);
1559 #elif defined(HAVE_LGETEA)
1560 return lgetea(path, name, value, size);
1561 #elif defined(HAVE_EXTATTR_GET_LINK)
1564 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1565 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1566 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1568 if((retval=extattr_get_link(path, attrnamespace, attrname, NULL, 0)) >= 0) {
1573 if((retval=extattr_get_link(path, attrnamespace, attrname, value, size)) >= 0)
1577 DEBUG(10,("sys_lgetxattr: extattr_get_link() failed with: %s\n", strerror(errno)));
1579 #elif defined(HAVE_ATTR_GET)
1580 int retval, flags = ATTR_DONTFOLLOW;
1581 int valuelength = (int)size;
1582 char *attrname = strchr(name,'.') + 1;
1584 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1586 retval = attr_get(path, attrname, (char *)value, &valuelength, flags);
1588 return retval ? retval : valuelength;
1589 #elif defined(HAVE_ATTROPEN)
1591 int attrfd = solaris_attropen(path, name, O_RDONLY|AT_SYMLINK_NOFOLLOW, 0);
1593 ret = solaris_read_xattr(attrfd, value, size);
1603 ssize_t sys_fgetxattr (int filedes, const char *name, void *value, size_t size)
1605 #if defined(HAVE_FGETXATTR)
1606 #ifndef XATTR_ADD_OPT
1607 return fgetxattr(filedes, name, value, size);
1610 return fgetxattr(filedes, name, value, size, 0, options);
1612 #elif defined(HAVE_FGETEA)
1613 return fgetea(filedes, name, value, size);
1614 #elif defined(HAVE_EXTATTR_GET_FD)
1617 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1618 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1619 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1621 if((retval=extattr_get_fd(filedes, attrnamespace, attrname, NULL, 0)) >= 0) {
1626 if((retval=extattr_get_fd(filedes, attrnamespace, attrname, value, size)) >= 0)
1630 DEBUG(10,("sys_fgetxattr: extattr_get_fd() failed with: %s\n", strerror(errno)));
1632 #elif defined(HAVE_ATTR_GETF)
1633 int retval, flags = 0;
1634 int valuelength = (int)size;
1635 char *attrname = strchr(name,'.') + 1;
1637 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1639 retval = attr_getf(filedes, attrname, (char *)value, &valuelength, flags);
1641 return retval ? retval : valuelength;
1642 #elif defined(HAVE_ATTROPEN)
1644 int attrfd = solaris_openat(filedes, name, O_RDONLY|O_XATTR, 0);
1646 ret = solaris_read_xattr(attrfd, value, size);
1656 #if defined(HAVE_EXTATTR_LIST_FILE)
1658 #define EXTATTR_PREFIX(s) (s), (sizeof((s))-1)
1666 { EXTATTR_NAMESPACE_SYSTEM, EXTATTR_PREFIX("system.") },
1667 { EXTATTR_NAMESPACE_USER, EXTATTR_PREFIX("user.") },
1675 static ssize_t bsd_attr_list (int type, extattr_arg arg, char *list, size_t size)
1677 ssize_t list_size, total_size = 0;
1680 /* Iterate through extattr(2) namespaces */
1681 for(t = 0; t < (sizeof(extattr)/sizeof(extattr[0])); t++) {
1683 #if defined(HAVE_EXTATTR_LIST_FILE)
1685 list_size = extattr_list_file(arg.path, extattr[t].space, list, size);
1688 #if defined(HAVE_EXTATTR_LIST_LINK)
1690 list_size = extattr_list_link(arg.path, extattr[t].space, list, size);
1693 #if defined(HAVE_EXTATTR_LIST_FD)
1695 list_size = extattr_list_fd(arg.filedes, extattr[t].space, list, size);
1702 /* Some error happend. Errno should be set by the previous call */
1708 /* XXX: Call with an empty buffer may be used to calculate
1709 necessary buffer size. Unfortunately, we can't say, how
1710 many attributes were returned, so here is the potential
1711 problem with the emulation.
1714 /* Take the worse case of one char attribute names -
1715 two bytes per name plus one more for sanity.
1717 total_size += list_size + (list_size/2 + 1)*extattr[t].len;
1720 /* Count necessary offset to fit namespace prefixes */
1722 for(i = 0; i < list_size; i += list[i] + 1)
1723 len += extattr[t].len;
1725 total_size += list_size + len;
1726 /* Buffer is too small to fit the results */
1727 if(total_size > size) {
1731 /* Shift results back, so we can prepend prefixes */
1732 buf = memmove(list + len, list, list_size);
1734 for(i = 0; i < list_size; i += len + 1) {
1736 strncpy(list, extattr[t].name, extattr[t].len + 1);
1737 list += extattr[t].len;
1738 strncpy(list, buf + i + 1, len);
1749 #if defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
1750 static char attr_buffer[ATTR_MAX_VALUELEN];
1752 static ssize_t irix_attr_list(const char *path, int filedes, char *list, size_t size, int flags)
1754 int retval = 0, index;
1755 attrlist_cursor_t *cursor = 0;
1757 attrlist_t * al = (attrlist_t *)attr_buffer;
1759 size_t ent_size, left = size;
1764 retval = attr_listf(filedes, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
1766 retval = attr_list(path, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
1768 for (index = 0; index < al->al_count; index++) {
1769 ae = ATTR_ENTRY(attr_buffer, index);
1770 ent_size = strlen(ae->a_name) + sizeof("user.");
1771 if (left >= ent_size) {
1772 strncpy(bp, "user.", sizeof("user."));
1773 strncat(bp, ae->a_name, ent_size - sizeof("user."));
1781 total_size += ent_size;
1783 if (al->al_more == 0) break;
1790 retval = attr_listf(filedes, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
1792 retval = attr_list(path, attr_buffer, ATTR_MAX_VALUELEN, flags, cursor);
1794 for (index = 0; index < al->al_count; index++) {
1795 ae = ATTR_ENTRY(attr_buffer, index);
1796 ent_size = strlen(ae->a_name) + sizeof("system.");
1797 if (left >= ent_size) {
1798 strncpy(bp, "system.", sizeof("system."));
1799 strncat(bp, ae->a_name, ent_size - sizeof("system."));
1807 total_size += ent_size;
1809 if (al->al_more == 0) break;
1812 return (ssize_t)(retval ? retval : total_size);
1817 ssize_t sys_listxattr (const char *path, char *list, size_t size)
1819 #if defined(HAVE_LISTXATTR)
1820 #ifndef XATTR_ADD_OPT
1821 return listxattr(path, list, size);
1824 return listxattr(path, list, size, options);
1826 #elif defined(HAVE_LISTEA)
1827 return listea(path, list, size);
1828 #elif defined(HAVE_EXTATTR_LIST_FILE)
1831 return bsd_attr_list(0, arg, list, size);
1832 #elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
1833 return irix_attr_list(path, 0, list, size, 0);
1834 #elif defined(HAVE_ATTROPEN)
1836 int attrdirfd = solaris_attropen(path, ".", O_RDONLY, 0);
1837 if (attrdirfd >= 0) {
1838 ret = solaris_list_xattr(attrdirfd, list, size);
1848 ssize_t sys_llistxattr (const char *path, char *list, size_t size)
1850 #if defined(HAVE_LLISTXATTR)
1851 return llistxattr(path, list, size);
1852 #elif defined(HAVE_LISTXATTR) && defined(XATTR_ADD_OPT)
1853 int options = XATTR_NOFOLLOW;
1854 return listxattr(path, list, size, options);
1855 #elif defined(HAVE_LLISTEA)
1856 return llistea(path, list, size);
1857 #elif defined(HAVE_EXTATTR_LIST_LINK)
1860 return bsd_attr_list(1, arg, list, size);
1861 #elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
1862 return irix_attr_list(path, 0, list, size, ATTR_DONTFOLLOW);
1863 #elif defined(HAVE_ATTROPEN)
1865 int attrdirfd = solaris_attropen(path, ".", O_RDONLY|AT_SYMLINK_NOFOLLOW, 0);
1866 if (attrdirfd >= 0) {
1867 ret = solaris_list_xattr(attrdirfd, list, size);
1877 ssize_t sys_flistxattr (int filedes, char *list, size_t size)
1879 #if defined(HAVE_FLISTXATTR)
1880 #ifndef XATTR_ADD_OPT
1881 return flistxattr(filedes, list, size);
1884 return flistxattr(filedes, list, size, options);
1886 #elif defined(HAVE_FLISTEA)
1887 return flistea(filedes, list, size);
1888 #elif defined(HAVE_EXTATTR_LIST_FD)
1890 arg.filedes = filedes;
1891 return bsd_attr_list(2, arg, list, size);
1892 #elif defined(HAVE_ATTR_LISTF)
1893 return irix_attr_list(NULL, filedes, list, size, 0);
1894 #elif defined(HAVE_ATTROPEN)
1896 int attrdirfd = solaris_openat(filedes, ".", O_RDONLY|O_XATTR, 0);
1897 if (attrdirfd >= 0) {
1898 ret = solaris_list_xattr(attrdirfd, list, size);
1908 int sys_removexattr (const char *path, const char *name)
1910 #if defined(HAVE_REMOVEXATTR)
1911 #ifndef XATTR_ADD_OPT
1912 return removexattr(path, name);
1915 return removexattr(path, name, options);
1917 #elif defined(HAVE_REMOVEEA)
1918 return removeea(path, name);
1919 #elif defined(HAVE_EXTATTR_DELETE_FILE)
1921 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1922 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1923 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1925 return extattr_delete_file(path, attrnamespace, attrname);
1926 #elif defined(HAVE_ATTR_REMOVE)
1928 char *attrname = strchr(name,'.') + 1;
1930 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1932 return attr_remove(path, attrname, flags);
1933 #elif defined(HAVE_ATTROPEN)
1935 int attrdirfd = solaris_attropen(path, ".", O_RDONLY, 0);
1936 if (attrdirfd >= 0) {
1937 ret = solaris_unlinkat(attrdirfd, name);
1947 int sys_lremovexattr (const char *path, const char *name)
1949 #if defined(HAVE_LREMOVEXATTR)
1950 return lremovexattr(path, name);
1951 #elif defined(HAVE_REMOVEXATTR) && defined(XATTR_ADD_OPT)
1952 int options = XATTR_NOFOLLOW;
1953 return removexattr(path, name, options);
1954 #elif defined(HAVE_LREMOVEEA)
1955 return lremoveea(path, name);
1956 #elif defined(HAVE_EXTATTR_DELETE_LINK)
1958 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1959 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1960 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
1962 return extattr_delete_link(path, attrnamespace, attrname);
1963 #elif defined(HAVE_ATTR_REMOVE)
1964 int flags = ATTR_DONTFOLLOW;
1965 char *attrname = strchr(name,'.') + 1;
1967 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
1969 return attr_remove(path, attrname, flags);
1970 #elif defined(HAVE_ATTROPEN)
1972 int attrdirfd = solaris_attropen(path, ".", O_RDONLY|AT_SYMLINK_NOFOLLOW, 0);
1973 if (attrdirfd >= 0) {
1974 ret = solaris_unlinkat(attrdirfd, name);
1984 int sys_fremovexattr (int filedes, const char *name)
1986 #if defined(HAVE_FREMOVEXATTR)
1987 #ifndef XATTR_ADD_OPT
1988 return fremovexattr(filedes, name);
1991 return fremovexattr(filedes, name, options);
1993 #elif defined(HAVE_FREMOVEEA)
1994 return fremoveea(filedes, name);
1995 #elif defined(HAVE_EXTATTR_DELETE_FD)
1997 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
1998 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
1999 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
2001 return extattr_delete_fd(filedes, attrnamespace, attrname);
2002 #elif defined(HAVE_ATTR_REMOVEF)
2004 char *attrname = strchr(name,'.') + 1;
2006 if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
2008 return attr_removef(filedes, attrname, flags);
2009 #elif defined(HAVE_ATTROPEN)
2011 int attrdirfd = solaris_openat(filedes, ".", O_RDONLY|O_XATTR, 0);
2012 if (attrdirfd >= 0) {
2013 ret = solaris_unlinkat(attrdirfd, name);
2023 int sys_setxattr (const char *path, const char *name, const void *value, size_t size, int flags)
2025 #if defined(HAVE_SETXATTR)
2026 #ifndef XATTR_ADD_OPT
2027 return setxattr(path, name, value, size, flags);
2030 return setxattr(path, name, value, size, 0, options);
2032 #elif defined(HAVE_SETEA)
2033 return setea(path, name, value, size, flags);
2034 #elif defined(HAVE_EXTATTR_SET_FILE)
2037 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
2038 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
2039 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
2041 /* Check attribute existence */
2042 retval = extattr_get_file(path, attrnamespace, attrname, NULL, 0);
2044 /* REPLACE attribute, that doesn't exist */
2045 if (flags & XATTR_REPLACE && errno == ENOATTR) {
2049 /* Ignore other errors */
2052 /* CREATE attribute, that already exists */
2053 if (flags & XATTR_CREATE) {
2059 retval = extattr_set_file(path, attrnamespace, attrname, value, size);
2060 return (retval < 0) ? -1 : 0;
2061 #elif defined(HAVE_ATTR_SET)
2063 char *attrname = strchr(name,'.') + 1;
2065 if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
2066 if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
2067 if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
2069 return attr_set(path, attrname, (const char *)value, size, myflags);
2070 #elif defined(HAVE_ATTROPEN)
2072 int myflags = O_RDWR;
2074 if (flags & XATTR_CREATE) myflags |= O_EXCL;
2075 if (!(flags & XATTR_REPLACE)) myflags |= O_CREAT;
2076 attrfd = solaris_attropen(path, name, myflags, (mode_t) SOLARIS_ATTRMODE);
2078 ret = solaris_write_xattr(attrfd, value, size);
2088 int sys_lsetxattr (const char *path, const char *name, const void *value, size_t size, int flags)
2090 #if defined(HAVE_LSETXATTR)
2091 return lsetxattr(path, name, value, size, flags);
2092 #elif defined(HAVE_SETXATTR) && defined(XATTR_ADD_OPT)
2093 int options = XATTR_NOFOLLOW;
2094 return setxattr(path, name, value, size, 0, options);
2095 #elif defined(LSETEA)
2096 return lsetea(path, name, value, size, flags);
2097 #elif defined(HAVE_EXTATTR_SET_LINK)
2100 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
2101 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
2102 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
2104 /* Check attribute existence */
2105 retval = extattr_get_link(path, attrnamespace, attrname, NULL, 0);
2107 /* REPLACE attribute, that doesn't exist */
2108 if (flags & XATTR_REPLACE && errno == ENOATTR) {
2112 /* Ignore other errors */
2115 /* CREATE attribute, that already exists */
2116 if (flags & XATTR_CREATE) {
2123 retval = extattr_set_link(path, attrnamespace, attrname, value, size);
2124 return (retval < 0) ? -1 : 0;
2125 #elif defined(HAVE_ATTR_SET)
2126 int myflags = ATTR_DONTFOLLOW;
2127 char *attrname = strchr(name,'.') + 1;
2129 if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
2130 if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
2131 if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
2133 return attr_set(path, attrname, (const char *)value, size, myflags);
2134 #elif defined(HAVE_ATTROPEN)
2136 int myflags = O_RDWR | AT_SYMLINK_NOFOLLOW;
2138 if (flags & XATTR_CREATE) myflags |= O_EXCL;
2139 if (!(flags & XATTR_REPLACE)) myflags |= O_CREAT;
2140 attrfd = solaris_attropen(path, name, myflags, (mode_t) SOLARIS_ATTRMODE);
2142 ret = solaris_write_xattr(attrfd, value, size);
2152 int sys_fsetxattr (int filedes, const char *name, const void *value, size_t size, int flags)
2154 #if defined(HAVE_FSETXATTR)
2155 #ifndef XATTR_ADD_OPT
2156 return fsetxattr(filedes, name, value, size, flags);
2159 return fsetxattr(filedes, name, value, size, 0, options);
2161 #elif defined(HAVE_FSETEA)
2162 return fsetea(filedes, name, value, size, flags);
2163 #elif defined(HAVE_EXTATTR_SET_FD)
2166 int attrnamespace = (strncmp(name, "system", 6) == 0) ?
2167 EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
2168 const char *attrname = ((s=strchr_m(name, '.')) == NULL) ? name : s + 1;
2170 /* Check attribute existence */
2171 retval = extattr_get_fd(filedes, attrnamespace, attrname, NULL, 0);
2173 /* REPLACE attribute, that doesn't exist */
2174 if (flags & XATTR_REPLACE && errno == ENOATTR) {
2178 /* Ignore other errors */
2181 /* CREATE attribute, that already exists */
2182 if (flags & XATTR_CREATE) {
2188 retval = extattr_set_fd(filedes, attrnamespace, attrname, value, size);
2189 return (retval < 0) ? -1 : 0;
2190 #elif defined(HAVE_ATTR_SETF)
2192 char *attrname = strchr(name,'.') + 1;
2194 if (strncmp(name, "system", 6) == 0) myflags |= ATTR_ROOT;
2195 if (flags & XATTR_CREATE) myflags |= ATTR_CREATE;
2196 if (flags & XATTR_REPLACE) myflags |= ATTR_REPLACE;
2198 return attr_setf(filedes, attrname, (const char *)value, size, myflags);
2199 #elif defined(HAVE_ATTROPEN)
2201 int myflags = O_RDWR | O_XATTR;
2203 if (flags & XATTR_CREATE) myflags |= O_EXCL;
2204 if (!(flags & XATTR_REPLACE)) myflags |= O_CREAT;
2205 attrfd = solaris_openat(filedes, name, myflags, (mode_t) SOLARIS_ATTRMODE);
2207 ret = solaris_write_xattr(attrfd, value, size);
2217 /**************************************************************************
2218 helper functions for Solaris' EA support
2219 ****************************************************************************/
2220 #ifdef HAVE_ATTROPEN
2221 static ssize_t solaris_read_xattr(int attrfd, void *value, size_t size)
2225 if (fstat(attrfd, &sbuf) == -1) {
2230 /* This is to return the current size of the named extended attribute */
2232 return sbuf.st_size;
2235 /* check size and read xattr */
2236 if (sbuf.st_size > size) {
2241 return read(attrfd, value, sbuf.st_size);
2244 static ssize_t solaris_list_xattr(int attrdirfd, char *list, size_t size)
2249 int newfd = dup(attrdirfd);
2250 /* CAUTION: The originating file descriptor should not be
2251 used again following the call to fdopendir().
2252 For that reason we dup() the file descriptor
2253 here to make things more clear. */
2254 dirp = fdopendir(newfd);
2256 while ((de = readdir(dirp))) {
2257 size_t listlen = strlen(de->d_name);
2258 if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, "..")) {
2259 /* we don't want "." and ".." here: */
2260 DEBUG(10,("skipped EA %s\n",de->d_name));
2265 /* return the current size of the list of extended attribute names*/
2268 /* check size and copy entrieѕ + nul into list. */
2269 if ((len + listlen + 1) > size) {
2274 safe_strcpy(list + len, de->d_name, listlen);
2282 if (closedir(dirp) == -1) {
2283 DEBUG(0,("closedir dirp failed: %s\n",strerror(errno)));
2289 static int solaris_unlinkat(int attrdirfd, const char *name)
2291 if (unlinkat(attrdirfd, name, 0) == -1) {
2292 if (errno == ENOENT) {
2300 static int solaris_attropen(const char *path, const char *attrpath, int oflag, mode_t mode)
2302 int filedes = attropen(path, attrpath, oflag, mode);
2303 if (filedes == -1) {
2304 DEBUG(10,("attropen FAILED: path: %s, name: %s, errno: %s\n",path,attrpath,strerror(errno)));
2305 if (errno == EINVAL) {
2314 static int solaris_openat(int fildes, const char *path, int oflag, mode_t mode)
2316 int filedes = openat(fildes, path, oflag, mode);
2317 if (filedes == -1) {
2318 DEBUG(10,("openat FAILED: fd: %d, path: %s, errno: %s\n",filedes,path,strerror(errno)));
2319 if (errno == EINVAL) {
2328 static int solaris_write_xattr(int attrfd, const char *value, size_t size)
2330 if ((ftruncate(attrfd, 0) == 0) && (write(attrfd, value, size) == size)) {
2333 DEBUG(10,("solaris_write_xattr FAILED!\n"));
2337 #endif /*HAVE_ATTROPEN*/
2340 /****************************************************************************
2341 Return the major devicenumber for UNIX extensions.
2342 ****************************************************************************/
2344 uint32 unix_dev_major(SMB_DEV_T dev)
2346 #if defined(HAVE_DEVICE_MAJOR_FN)
2347 return (uint32)major(dev);
2349 return (uint32)(dev >> 8);
2353 /****************************************************************************
2354 Return the minor devicenumber for UNIX extensions.
2355 ****************************************************************************/
2357 uint32 unix_dev_minor(SMB_DEV_T dev)
2359 #if defined(HAVE_DEVICE_MINOR_FN)
2360 return (uint32)minor(dev);
2362 return (uint32)(dev & 0xff);
2366 #if defined(WITH_AIO)
2368 /*******************************************************************
2369 An aio_read wrapper that will deal with 64-bit sizes.
2370 ********************************************************************/
2372 int sys_aio_read(SMB_STRUCT_AIOCB *aiocb)
2374 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_READ64)
2375 return aio_read64(aiocb);
2376 #elif defined(HAVE_AIO_READ)
2377 return aio_read(aiocb);
2384 /*******************************************************************
2385 An aio_write wrapper that will deal with 64-bit sizes.
2386 ********************************************************************/
2388 int sys_aio_write(SMB_STRUCT_AIOCB *aiocb)
2390 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_WRITE64)
2391 return aio_write64(aiocb);
2392 #elif defined(HAVE_AIO_WRITE)
2393 return aio_write(aiocb);
2400 /*******************************************************************
2401 An aio_return wrapper that will deal with 64-bit sizes.
2402 ********************************************************************/
2404 ssize_t sys_aio_return(SMB_STRUCT_AIOCB *aiocb)
2406 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_RETURN64)
2407 return aio_return64(aiocb);
2408 #elif defined(HAVE_AIO_RETURN)
2409 return aio_return(aiocb);
2416 /*******************************************************************
2417 An aio_cancel wrapper that will deal with 64-bit sizes.
2418 ********************************************************************/
2420 int sys_aio_cancel(int fd, SMB_STRUCT_AIOCB *aiocb)
2422 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_CANCEL64)
2423 return aio_cancel64(fd, aiocb);
2424 #elif defined(HAVE_AIO_CANCEL)
2425 return aio_cancel(fd, aiocb);
2432 /*******************************************************************
2433 An aio_error wrapper that will deal with 64-bit sizes.
2434 ********************************************************************/
2436 int sys_aio_error(const SMB_STRUCT_AIOCB *aiocb)
2438 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_ERROR64)
2439 return aio_error64(aiocb);
2440 #elif defined(HAVE_AIO_ERROR)
2441 return aio_error(aiocb);
2448 /*******************************************************************
2449 An aio_fsync wrapper that will deal with 64-bit sizes.
2450 ********************************************************************/
2452 int sys_aio_fsync(int op, SMB_STRUCT_AIOCB *aiocb)
2454 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_FSYNC64)
2455 return aio_fsync64(op, aiocb);
2456 #elif defined(HAVE_AIO_FSYNC)
2457 return aio_fsync(op, aiocb);
2464 /*******************************************************************
2465 An aio_fsync wrapper that will deal with 64-bit sizes.
2466 ********************************************************************/
2468 int sys_aio_suspend(const SMB_STRUCT_AIOCB * const cblist[], int n, const struct timespec *timeout)
2470 #if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_AIOCB64) && defined(HAVE_AIO_SUSPEND64)
2471 return aio_suspend64(cblist, n, timeout);
2472 #elif defined(HAVE_AIO_FSYNC)
2473 return aio_suspend(cblist, n, timeout);
2479 #else /* !WITH_AIO */
2481 int sys_aio_read(SMB_STRUCT_AIOCB *aiocb)
2487 int sys_aio_write(SMB_STRUCT_AIOCB *aiocb)
2493 ssize_t sys_aio_return(SMB_STRUCT_AIOCB *aiocb)
2499 int sys_aio_cancel(int fd, SMB_STRUCT_AIOCB *aiocb)
2505 int sys_aio_error(const SMB_STRUCT_AIOCB *aiocb)
2511 int sys_aio_fsync(int op, SMB_STRUCT_AIOCB *aiocb)
2517 int sys_aio_suspend(const SMB_STRUCT_AIOCB * const cblist[], int n, const struct timespec *timeout)
2522 #endif /* WITH_AIO */
2524 int sys_getpeereid( int s, uid_t *uid)
2526 #if defined(HAVE_PEERCRED)
2528 socklen_t cred_len = sizeof(struct ucred);
2531 ret = getsockopt(s, SOL_SOCKET, SO_PEERCRED, (void *)&cred, &cred_len);
2536 if (cred_len != sizeof(struct ucred)) {
2549 int sys_getnameinfo(const struct sockaddr *psa,
2558 * For Solaris we must make sure salen is the
2559 * correct length for the incoming sa_family.
2562 if (salen == sizeof(struct sockaddr_storage)) {
2563 salen = sizeof(struct sockaddr_in);
2564 #if defined(HAVE_IPV6)
2565 if (psa->sa_family == AF_INET6) {
2566 salen = sizeof(struct sockaddr_in6);
2570 return getnameinfo(psa, salen, host, hostlen, service, servlen, flags);
2573 int sys_connect(int fd, const struct sockaddr * addr)
2575 socklen_t salen = -1;
2577 if (addr->sa_family == AF_INET) {
2578 salen = sizeof(struct sockaddr_in);
2579 } else if (addr->sa_family == AF_UNIX) {
2580 salen = sizeof(struct sockaddr_un);
2582 #if defined(HAVE_IPV6)
2583 else if (addr->sa_family == AF_INET6) {
2584 salen = sizeof(struct sockaddr_in6);
2588 return connect(fd, addr, salen);