2 Unix SMB/CIFS implementation.
3 Samba utility functions
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Jeremy Allison 2001-2007
6 Copyright (C) Simo Sorce 2001
7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
8 Copyright (C) James Peach 2006
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "system/passwd.h"
26 #include "system/filesys.h"
28 #include "ctdbd_conn.h"
29 #include "../lib/util/util_pw.h"
31 #include <ccan/hash/hash.h>
32 #include "libcli/security/security.h"
35 #ifdef HAVE_SYS_PRCTL_H
36 #include <sys/prctl.h>
39 /* Max allowable allococation - 256mb - 0x10000000 */
40 #define MAX_ALLOC_SIZE (1024*1024*256)
42 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
43 #ifdef WITH_NISPLUS_HOME
44 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
46 * The following lines are needed due to buggy include files
47 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
48 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
49 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
50 * an enum in /usr/include/rpcsvc/nis.h.
57 #if defined(GROUP_OBJ)
61 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
63 #include <rpcsvc/nis.h>
65 #endif /* WITH_NISPLUS_HOME */
66 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
68 static enum protocol_types Protocol = PROTOCOL_COREPLUS;
70 enum protocol_types get_Protocol(void)
75 void set_Protocol(enum protocol_types p)
80 static enum remote_arch_types ra_type = RA_UNKNOWN;
82 void gfree_all( void )
91 /*******************************************************************
92 Check if a file exists - call vfs_file_exist for samba files.
93 ********************************************************************/
95 bool file_exist_stat(const char *fname,SMB_STRUCT_STAT *sbuf,
96 bool fake_dir_create_times)
102 if (sys_stat(fname, sbuf, fake_dir_create_times) != 0)
105 return((S_ISREG(sbuf->st_ex_mode)) || (S_ISFIFO(sbuf->st_ex_mode)));
108 /*******************************************************************
109 Check if a unix domain socket exists - call vfs_file_exist for samba files.
110 ********************************************************************/
112 bool socket_exist(const char *fname)
115 if (sys_stat(fname, &st, false) != 0)
118 return S_ISSOCK(st.st_ex_mode);
121 /*******************************************************************
122 Returns the size in bytes of the named given the stat struct.
123 ********************************************************************/
125 uint64_t get_file_size_stat(const SMB_STRUCT_STAT *sbuf)
127 return sbuf->st_ex_size;
130 /****************************************************************************
131 Check two stats have identical dev and ino fields.
132 ****************************************************************************/
134 bool check_same_dev_ino(const SMB_STRUCT_STAT *sbuf1,
135 const SMB_STRUCT_STAT *sbuf2)
137 if (sbuf1->st_ex_dev != sbuf2->st_ex_dev ||
138 sbuf1->st_ex_ino != sbuf2->st_ex_ino) {
144 /****************************************************************************
145 Check if a stat struct is identical for use.
146 ****************************************************************************/
148 bool check_same_stat(const SMB_STRUCT_STAT *sbuf1,
149 const SMB_STRUCT_STAT *sbuf2)
151 if (sbuf1->st_ex_uid != sbuf2->st_ex_uid ||
152 sbuf1->st_ex_gid != sbuf2->st_ex_gid ||
153 !check_same_dev_ino(sbuf1, sbuf2)) {
159 /*******************************************************************
160 Show a smb message structure.
161 ********************************************************************/
163 void show_msg(const char *buf)
171 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
173 (int)CVAL(buf,smb_com),
174 (int)CVAL(buf,smb_rcls),
175 (int)CVAL(buf,smb_reh),
176 (int)SVAL(buf,smb_err),
177 (int)CVAL(buf,smb_flg),
178 (int)SVAL(buf,smb_flg2)));
179 DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
180 (int)SVAL(buf,smb_tid),
181 (int)SVAL(buf,smb_pid),
182 (int)SVAL(buf,smb_uid),
183 (int)SVAL(buf,smb_mid)));
184 DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct)));
186 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
187 DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i,
188 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
190 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
192 DEBUGADD(5,("smb_bcc=%d\n",bcc));
200 dump_data(10, (const uint8 *)smb_buf_const(buf), bcc);
203 /*******************************************************************
204 Setup only the byte count for a smb message.
205 ********************************************************************/
207 int set_message_bcc(char *buf,int num_bytes)
209 int num_words = CVAL(buf,smb_wct);
210 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
211 _smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
212 return (smb_size + num_words*2 + num_bytes);
215 /*******************************************************************
216 Add a data blob to the end of a smb_buf, adjusting bcc and smb_len.
217 Return the bytes added
218 ********************************************************************/
220 ssize_t message_push_blob(uint8 **outbuf, DATA_BLOB blob)
222 size_t newlen = smb_len(*outbuf) + 4 + blob.length;
225 if (!(tmp = talloc_realloc(NULL, *outbuf, uint8, newlen))) {
226 DEBUG(0, ("talloc failed\n"));
231 memcpy(tmp + smb_len(tmp) + 4, blob.data, blob.length);
232 set_message_bcc((char *)tmp, smb_buflen(tmp) + blob.length);
236 /*******************************************************************
237 Reduce a file name, removing .. elements.
238 ********************************************************************/
240 static char *dos_clean_name(TALLOC_CTX *ctx, const char *s)
245 DEBUG(3,("dos_clean_name [%s]\n",s));
247 /* remove any double slashes */
248 str = talloc_all_string_sub(ctx, s, "\\\\", "\\");
253 /* Remove leading .\\ characters */
254 if(strncmp(str, ".\\", 2) == 0) {
255 trim_string(str, ".\\", NULL);
257 str = talloc_strdup(ctx, ".\\");
264 while ((p = strstr_m(str,"\\..\\")) != NULL) {
270 if ((p=strrchr_m(str,'\\')) != NULL) {
275 str = talloc_asprintf(ctx,
284 trim_string(str,NULL,"\\..");
285 return talloc_all_string_sub(ctx, str, "\\.\\", "\\");
288 /*******************************************************************
289 Reduce a file name, removing .. elements.
290 ********************************************************************/
292 char *unix_clean_name(TALLOC_CTX *ctx, const char *s)
297 DEBUG(3,("unix_clean_name [%s]\n",s));
299 /* remove any double slashes */
300 str = talloc_all_string_sub(ctx, s, "//","/");
305 /* Remove leading ./ characters */
306 if(strncmp(str, "./", 2) == 0) {
307 trim_string(str, "./", NULL);
309 str = talloc_strdup(ctx, "./");
316 while ((p = strstr_m(str,"/../")) != NULL) {
322 if ((p=strrchr_m(str,'/')) != NULL) {
327 str = talloc_asprintf(ctx,
336 trim_string(str,NULL,"/..");
337 return talloc_all_string_sub(ctx, str, "/./", "/");
340 char *clean_name(TALLOC_CTX *ctx, const char *s)
342 char *str = dos_clean_name(ctx, s);
346 return unix_clean_name(ctx, str);
349 /*******************************************************************
350 Write data into an fd at a given offset. Ignore seek errors.
351 ********************************************************************/
353 ssize_t write_data_at_offset(int fd, const char *buffer, size_t N, off_t pos)
358 if (pos == (off_t)-1) {
359 return write_data(fd, buffer, N);
361 #if defined(HAVE_PWRITE) || defined(HAVE_PRWITE64)
363 ret = sys_pwrite(fd,buffer + total,N - total, pos);
364 if (ret == -1 && errno == ESPIPE) {
365 return write_data(fd, buffer + total,N - total);
368 DEBUG(0,("write_data_at_offset: write failure. Error = %s\n", strerror(errno) ));
377 return (ssize_t)total;
379 /* Use lseek and write_data. */
380 if (lseek(fd, pos, SEEK_SET) == -1) {
381 if (errno != ESPIPE) {
385 return write_data(fd, buffer, N);
389 static int reinit_after_fork_pipe[2] = { -1, -1 };
391 NTSTATUS init_before_fork(void)
395 ret = pipe(reinit_after_fork_pipe);
399 status = map_nt_error_from_unix_common(errno);
401 DEBUG(0, ("Error creating child_pipe: %s\n",
411 * Detect died parent by detecting EOF on the pipe
413 static void reinit_after_fork_pipe_handler(struct tevent_context *ev,
414 struct tevent_fd *fde,
420 if (sys_read(reinit_after_fork_pipe[0], &c, 1) != 1) {
422 * we have reached EOF on stdin, which means the
423 * parent has exited. Shutdown the server
425 (void)kill(getpid(), SIGTERM);
430 NTSTATUS reinit_after_fork(struct messaging_context *msg_ctx,
431 struct tevent_context *ev_ctx,
432 bool parent_longlived)
434 NTSTATUS status = NT_STATUS_OK;
436 if (reinit_after_fork_pipe[1] != -1) {
437 close(reinit_after_fork_pipe[1]);
438 reinit_after_fork_pipe[1] = -1;
441 /* Reset the state of the random
442 * number generation system, so
443 * children do not get the same random
444 * numbers as each other */
445 set_need_random_reseed();
447 /* tdb needs special fork handling */
448 if (tdb_reopen_all(parent_longlived ? 1 : 0) != 0) {
449 DEBUG(0,("tdb_reopen_all failed.\n"));
450 status = NT_STATUS_OPEN_FAILED;
454 if (ev_ctx && tevent_re_initialise(ev_ctx) != 0) {
455 smb_panic(__location__ ": Failed to re-initialise event context");
458 if (reinit_after_fork_pipe[0] != -1) {
459 struct tevent_fd *fde;
461 fde = tevent_add_fd(ev_ctx, ev_ctx /* TALLOC_CTX */,
462 reinit_after_fork_pipe[0], TEVENT_FD_READ,
463 reinit_after_fork_pipe_handler, NULL);
465 smb_panic(__location__ ": Failed to add reinit_after_fork pipe event");
471 * For clustering, we need to re-init our ctdbd connection after the
474 status = messaging_reinit(msg_ctx);
475 if (!NT_STATUS_IS_OK(status)) {
476 DEBUG(0,("messaging_reinit() failed: %s\n",
484 /****************************************************************************
485 (Hopefully) efficient array append.
486 ****************************************************************************/
488 void add_to_large_array(TALLOC_CTX *mem_ctx, size_t element_size,
489 void *element, void *_array, uint32 *num_elements,
492 void **array = (void **)_array;
494 if (*array_size < 0) {
498 if (*array == NULL) {
499 if (*array_size == 0) {
503 if (*array_size >= MAX_ALLOC_SIZE/element_size) {
507 *array = TALLOC(mem_ctx, element_size * (*array_size));
508 if (*array == NULL) {
513 if (*num_elements == *array_size) {
516 if (*array_size >= MAX_ALLOC_SIZE/element_size) {
520 *array = TALLOC_REALLOC(mem_ctx, *array,
521 element_size * (*array_size));
523 if (*array == NULL) {
528 memcpy((char *)(*array) + element_size*(*num_elements),
529 element, element_size);
539 /****************************************************************************
540 Get my own domain name, or "" if we have none.
541 ****************************************************************************/
543 char *get_mydnsdomname(TALLOC_CTX *ctx)
548 domname = get_mydnsfullname();
553 p = strchr_m(domname, '.');
556 return talloc_strdup(ctx, p);
558 return talloc_strdup(ctx, "");
562 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
563 /******************************************************************
564 Remove any mount options such as -rsize=2048,wsize=2048 etc.
565 Based on a fix from <Thomas.Hepper@icem.de>.
566 Returns a malloc'ed string.
567 *******************************************************************/
569 static char *strip_mount_options(TALLOC_CTX *ctx, const char *str)
573 while(*p && !isspace(*p))
575 while(*p && isspace(*p))
578 return talloc_strdup(ctx, p);
584 /*******************************************************************
585 Patch from jkf@soton.ac.uk
586 Split Luke's automount_server into YP lookup and string splitter
587 so can easily implement automount_path().
588 Returns a malloc'ed string.
589 *******************************************************************/
591 #ifdef WITH_NISPLUS_HOME
592 char *automount_lookup(TALLOC_CTX *ctx, const char *user_name)
596 char *nis_map = (char *)lp_homedir_map();
598 char buffer[NIS_MAXATTRVAL + 1];
603 snprintf(buffer, sizeof(buffer), "[key=%s],%s", user_name, nis_map);
604 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
606 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) {
607 if (result->status != NIS_SUCCESS) {
608 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
610 object = result->objects.objects_val;
611 if (object->zo_data.zo_type == ENTRY_OBJ) {
612 entry = &object->zo_data.objdata_u.en_data;
613 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
614 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
616 value = talloc_strdup(ctx,
617 entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
619 nis_freeresult(result);
622 value = talloc_string_sub(ctx,
629 nis_freeresult(result);
632 value = strip_mount_options(ctx, value);
633 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n",
638 #else /* WITH_NISPLUS_HOME */
640 char *automount_lookup(TALLOC_CTX *ctx, const char *user_name)
644 int nis_error; /* returned by yp all functions */
645 char *nis_result; /* yp_match inits this */
646 int nis_result_len; /* and set this */
647 char *nis_domain; /* yp_get_default_domain inits this */
648 char *nis_map = lp_homedir_map(talloc_tos());
650 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
651 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
655 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
657 if ((nis_error = yp_match(nis_domain, nis_map, user_name,
658 strlen(user_name), &nis_result,
659 &nis_result_len)) == 0) {
660 if (nis_result_len > 0 && nis_result[nis_result_len] == '\n') {
661 nis_result[nis_result_len] = '\0';
663 value = talloc_strdup(ctx, nis_result);
667 value = strip_mount_options(ctx, value);
668 } else if(nis_error == YPERR_KEY) {
669 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
670 user_name, nis_map));
671 DEBUG(3, ("using defaults for server and home directory\n"));
673 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
674 yperr_string(nis_error), user_name, nis_map));
678 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, value));
682 #endif /* WITH_NISPLUS_HOME */
685 bool process_exists(const struct server_id pid)
687 return serverid_exists(&pid);
690 /*******************************************************************
691 Convert a uid into a user name.
692 ********************************************************************/
694 const char *uidtoname(uid_t uid)
696 TALLOC_CTX *ctx = talloc_tos();
698 struct passwd *pass = NULL;
700 pass = getpwuid_alloc(ctx,uid);
702 name = talloc_strdup(ctx,pass->pw_name);
705 name = talloc_asprintf(ctx,
712 /*******************************************************************
713 Convert a gid into a group name.
714 ********************************************************************/
716 char *gidtoname(gid_t gid)
722 return talloc_strdup(talloc_tos(), grp->gr_name);
725 return talloc_asprintf(talloc_tos(),
731 /*******************************************************************
732 Convert a user name into a uid.
733 ********************************************************************/
735 uid_t nametouid(const char *name)
741 pass = Get_Pwnam_alloc(talloc_tos(), name);
748 u = (uid_t)strtol(name, &p, 0);
749 if ((p != name) && (*p == '\0'))
755 /*******************************************************************
756 Convert a name to a gid_t if possible. Return -1 if not a group.
757 ********************************************************************/
759 gid_t nametogid(const char *name)
765 g = (gid_t)strtol(name, &p, 0);
766 if ((p != name) && (*p == '\0'))
769 grp = getgrnam(name);
775 /*******************************************************************
776 Something really nasty happened - panic !
777 ********************************************************************/
779 void smb_panic_s3(const char *why)
784 DEBUG(0,("PANIC (pid %llu): %s\n",
785 (unsigned long long)getpid(), why));
788 #if defined(HAVE_PRCTL) && defined(PR_SET_PTRACER)
790 * Make sure all children can attach a debugger.
792 prctl(PR_SET_PTRACER, getpid(), 0, 0, 0);
795 cmd = lp_panic_action(talloc_tos());
797 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
798 result = system(cmd);
801 DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
804 DEBUG(0, ("smb_panic(): action returned status %d\n",
805 WEXITSTATUS(result)));
811 /*******************************************************************
812 Print a backtrace of the stack to the debug log. This function
813 DELIBERATELY LEAKS MEMORY. The expectation is that you should
814 exit shortly after calling it.
815 ********************************************************************/
817 #ifdef HAVE_LIBUNWIND_H
818 #include <libunwind.h>
821 #ifdef HAVE_EXECINFO_H
822 #include <execinfo.h>
829 void log_stack_trace(void)
831 #ifdef HAVE_LIBUNWIND
832 /* Try to use libunwind before any other technique since on ia64
833 * libunwind correctly walks the stack in more circumstances than
841 unw_word_t ip, sp, off;
843 procname[sizeof(procname) - 1] = '\0';
845 if (unw_getcontext(&uc) != 0) {
846 goto libunwind_failed;
849 if (unw_init_local(&cursor, &uc) != 0) {
850 goto libunwind_failed;
853 DEBUG(0, ("BACKTRACE:\n"));
857 unw_get_reg(&cursor, UNW_REG_IP, &ip);
858 unw_get_reg(&cursor, UNW_REG_SP, &sp);
860 switch (unw_get_proc_name(&cursor,
861 procname, sizeof(procname) - 1, &off) ) {
865 /* Name truncated. */
866 DEBUGADD(0, (" #%u %s + %#llx [ip=%#llx] [sp=%#llx]\n",
867 i, procname, (long long)off,
868 (long long)ip, (long long) sp));
871 /* case -UNW_ENOINFO: */
872 /* case -UNW_EUNSPEC: */
873 /* No symbol name found. */
874 DEBUGADD(0, (" #%u %s [ip=%#llx] [sp=%#llx]\n",
875 i, "<unknown symbol>",
876 (long long)ip, (long long) sp));
879 } while (unw_step(&cursor) > 0);
884 DEBUG(0, ("unable to produce a stack trace with libunwind\n"));
886 #elif HAVE_BACKTRACE_SYMBOLS
887 void *backtrace_stack[BACKTRACE_STACK_SIZE];
888 size_t backtrace_size;
889 char **backtrace_strings;
891 /* get the backtrace (stack frames) */
892 backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE);
893 backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size);
895 DEBUG(0, ("BACKTRACE: %lu stack frames:\n",
896 (unsigned long)backtrace_size));
898 if (backtrace_strings) {
901 for (i = 0; i < backtrace_size; i++)
902 DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i]));
904 /* Leak the backtrace_strings, rather than risk what free() might do */
909 /* The IRIX libexc library provides an API for unwinding the stack. See
910 * libexc(3) for details. Apparantly trace_back_stack leaks memory, but
911 * since we are about to abort anyway, it hardly matters.
914 #define NAMESIZE 32 /* Arbitrary */
916 __uint64_t addrs[BACKTRACE_STACK_SIZE];
917 char * names[BACKTRACE_STACK_SIZE];
918 char namebuf[BACKTRACE_STACK_SIZE * NAMESIZE];
927 /* We need to be root so we can open our /proc entry to walk
928 * our stack. It also helps when we want to dump core.
932 for (i = 0; i < BACKTRACE_STACK_SIZE; i++) {
933 names[i] = namebuf + (i * NAMESIZE);
936 levels = trace_back_stack(0, addrs, names,
937 BACKTRACE_STACK_SIZE, NAMESIZE - 1);
939 DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels));
940 for (i = 0; i < levels; i++) {
941 DEBUGADD(0, (" #%d 0x%llx %s\n", i, addrs[i], names[i]));
946 DEBUG(0, ("unable to produce a stack trace on this platform\n"));
950 /*******************************************************************
951 A readdir wrapper which just returns the file name.
952 ********************************************************************/
954 const char *readdirname(DIR *p)
962 ptr = (struct dirent *)readdir(p);
973 #ifdef HAVE_BROKEN_READDIR_NAME
974 /* using /usr/ucb/cc is BAD */
978 return talloc_strdup(talloc_tos(), dname);
981 /*******************************************************************
982 Utility function used to decide if the last component
983 of a path matches a (possibly wildcarded) entry in a namelist.
984 ********************************************************************/
986 bool is_in_path(const char *name, name_compare_entry *namelist, bool case_sensitive)
988 const char *last_component;
990 /* if we have no list it's obviously not in the path */
991 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) {
995 DEBUG(8, ("is_in_path: %s\n", name));
997 /* Get the last component of the unix name. */
998 last_component = strrchr_m(name, '/');
999 if (!last_component) {
1000 last_component = name;
1002 last_component++; /* Go past '/' */
1005 for(; namelist->name != NULL; namelist++) {
1006 if(namelist->is_wild) {
1007 if (mask_match(last_component, namelist->name, case_sensitive)) {
1008 DEBUG(8,("is_in_path: mask match succeeded\n"));
1012 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1013 (!case_sensitive && (strcasecmp_m(last_component, namelist->name) == 0))) {
1014 DEBUG(8,("is_in_path: match succeeded\n"));
1019 DEBUG(8,("is_in_path: match not found\n"));
1023 /*******************************************************************
1024 Strip a '/' separated list into an array of
1025 name_compare_enties structures suitable for
1026 passing to is_in_path(). We do this for
1027 speed so we can pre-parse all the names in the list
1028 and don't do it for each call to is_in_path().
1029 We also check if the entry contains a wildcard to
1030 remove a potentially expensive call to mask_match
1032 ********************************************************************/
1034 void set_namearray(name_compare_entry **ppname_array, const char *namelist_in)
1040 int num_entries = 0;
1043 (*ppname_array) = NULL;
1045 if((namelist_in == NULL ) || ((namelist_in != NULL) && (*namelist_in == '\0')))
1048 namelist = talloc_strdup(talloc_tos(), namelist_in);
1049 if (namelist == NULL) {
1050 DEBUG(0,("set_namearray: talloc fail\n"));
1055 namelist_end = &namelist[strlen(namelist)];
1057 /* We need to make two passes over the string. The
1058 first to count the number of elements, the second
1062 while(nameptr <= namelist_end) {
1063 if ( *nameptr == '/' ) {
1064 /* cope with multiple (useless) /s) */
1068 /* anything left? */
1069 if ( *nameptr == '\0' )
1072 /* find the next '/' or consume remaining */
1073 name_end = strchr_m(nameptr, '/');
1074 if (name_end == NULL)
1075 name_end = (char *)nameptr + strlen(nameptr);
1077 /* next segment please */
1078 nameptr = name_end + 1;
1082 if(num_entries == 0) {
1083 talloc_free(namelist);
1087 if(( (*ppname_array) = SMB_MALLOC_ARRAY(name_compare_entry, num_entries + 1)) == NULL) {
1088 DEBUG(0,("set_namearray: malloc fail\n"));
1089 talloc_free(namelist);
1093 /* Now copy out the names */
1096 while(nameptr <= namelist_end) {
1097 if ( *nameptr == '/' ) {
1098 /* cope with multiple (useless) /s) */
1102 /* anything left? */
1103 if ( *nameptr == '\0' )
1106 /* find the next '/' or consume remaining */
1107 name_end = strchr_m(nameptr, '/');
1111 name_end = nameptr + strlen(nameptr);
1113 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1114 if(((*ppname_array)[i].name = SMB_STRDUP(nameptr)) == NULL) {
1115 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1116 talloc_free(namelist);
1120 /* next segment please */
1121 nameptr = name_end + 1;
1125 (*ppname_array)[i].name = NULL;
1127 talloc_free(namelist);
1132 #define DBGC_CLASS DBGC_LOCKING
1134 /****************************************************************************
1135 Simple routine to query existing file locks. Cruft in NFS and 64->32 bit mapping
1136 is dealt with in posix.c
1137 Returns True if we have information regarding this lock region (and returns
1138 F_UNLCK in *ptype if the region is unlocked). False if the call failed.
1139 ****************************************************************************/
1141 bool fcntl_getlock(int fd, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid)
1146 DEBUG(8,("fcntl_getlock fd=%d offset=%.0f count=%.0f type=%d\n",
1147 fd,(double)*poffset,(double)*pcount,*ptype));
1149 lock.l_type = *ptype;
1150 lock.l_whence = SEEK_SET;
1151 lock.l_start = *poffset;
1152 lock.l_len = *pcount;
1155 ret = sys_fcntl_ptr(fd,F_GETLK,&lock);
1159 DEBUG(3,("fcntl_getlock: lock request failed at offset %.0f count %.0f type %d (%s)\n",
1160 (double)*poffset,(double)*pcount,*ptype,strerror(errno)));
1165 *ptype = lock.l_type;
1166 *poffset = lock.l_start;
1167 *pcount = lock.l_len;
1170 DEBUG(3,("fcntl_getlock: fd %d is returned info %d pid %u\n",
1171 fd, (int)lock.l_type, (unsigned int)lock.l_pid));
1176 #define DBGC_CLASS DBGC_ALL
1178 /*******************************************************************
1179 Is the name specified one of my netbios names.
1180 Returns true if it is equal, false otherwise.
1181 ********************************************************************/
1183 bool is_myname(const char *s)
1188 for (n=0; my_netbios_names(n); n++) {
1189 if (strequal(my_netbios_names(n), s)) {
1194 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1198 /*******************************************************************
1199 we distinguish between 2K and XP by the "Native Lan Manager" string
1200 WinXP => "Windows 2002 5.1"
1201 WinXP 64bit => "Windows XP 5.2"
1202 Win2k => "Windows 2000 5.0"
1203 NT4 => "Windows NT 4.0"
1204 Win9x => "Windows 4.0"
1205 Windows 2003 doesn't set the native lan manager string but
1206 they do set the domain to "Windows 2003 5.2" (probably a bug).
1207 ********************************************************************/
1209 void ra_lanman_string( const char *native_lanman )
1211 if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 )
1212 set_remote_arch( RA_WINXP );
1213 else if ( strcmp( native_lanman, "Windows XP 5.2" ) == 0 )
1214 set_remote_arch( RA_WINXP64 );
1215 else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 )
1216 set_remote_arch( RA_WIN2K3 );
1219 static const char *remote_arch_str;
1221 const char *get_remote_arch_str(void)
1223 if (!remote_arch_str) {
1226 return remote_arch_str;
1229 /*******************************************************************
1230 Set the horrid remote_arch string based on an enum.
1231 ********************************************************************/
1233 void set_remote_arch(enum remote_arch_types type)
1238 remote_arch_str = "WfWg";
1241 remote_arch_str = "OS2";
1244 remote_arch_str = "Win95";
1247 remote_arch_str = "WinNT";
1250 remote_arch_str = "Win2K";
1253 remote_arch_str = "WinXP";
1256 remote_arch_str = "WinXP64";
1259 remote_arch_str = "Win2K3";
1262 remote_arch_str = "Vista";
1265 remote_arch_str = "Samba";
1268 remote_arch_str = "CIFSFS";
1271 remote_arch_str = "OSX";
1274 ra_type = RA_UNKNOWN;
1275 remote_arch_str = "UNKNOWN";
1279 DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n",
1283 /*******************************************************************
1284 Get the remote_arch type.
1285 ********************************************************************/
1287 enum remote_arch_types get_remote_arch(void)
1292 const char *tab_depth(int level, int depth)
1294 if( CHECK_DEBUGLVL(level) ) {
1295 dbgtext("%*s", depth*4, "");
1300 /*****************************************************************************
1301 Provide a checksum on a string
1303 Input: s - the null-terminated character string for which the checksum
1306 Output: The checksum value calculated for s.
1307 *****************************************************************************/
1309 int str_checksum(const char *s)
1313 return hash(s, strlen(s), 0);
1316 /*****************************************************************
1317 Zero a memory area then free it. Used to catch bugs faster.
1318 *****************************************************************/
1320 void zero_free(void *p, size_t size)
1326 /*****************************************************************
1327 Set our open file limit to a requested max and return the limit.
1328 *****************************************************************/
1330 int set_maxfiles(int requested_max)
1332 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1334 int saved_current_limit;
1336 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1337 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1340 return requested_max;
1344 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1345 * account for the extra fd we need
1346 * as well as the log files and standard
1347 * handles etc. Save the limit we want to set in case
1348 * we are running on an OS that doesn't support this limit (AIX)
1349 * which always returns RLIM_INFINITY for rlp.rlim_max.
1352 /* Try raising the hard (max) limit to the requested amount. */
1354 #if defined(RLIM_INFINITY)
1355 if (rlp.rlim_max != RLIM_INFINITY) {
1356 int orig_max = rlp.rlim_max;
1358 if ( rlp.rlim_max < requested_max )
1359 rlp.rlim_max = requested_max;
1361 /* This failing is not an error - many systems (Linux) don't
1362 support our default request of 10,000 open files. JRA. */
1364 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1365 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1366 (int)rlp.rlim_max, strerror(errno) ));
1368 /* Set failed - restore original value from get. */
1369 rlp.rlim_max = orig_max;
1374 /* Now try setting the soft (current) limit. */
1376 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1378 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1379 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1380 (int)rlp.rlim_cur, strerror(errno) ));
1382 return saved_current_limit;
1385 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1386 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1389 return saved_current_limit;
1392 #if defined(RLIM_INFINITY)
1393 if(rlp.rlim_cur == RLIM_INFINITY)
1394 return saved_current_limit;
1397 if((int)rlp.rlim_cur > saved_current_limit)
1398 return saved_current_limit;
1400 return rlp.rlim_cur;
1401 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1403 * No way to know - just guess...
1405 return requested_max;
1409 /*****************************************************************
1410 malloc that aborts with smb_panic on fail or zero size.
1411 *****************************************************************/
1413 void *smb_xmalloc_array(size_t size, unsigned int count)
1417 smb_panic("smb_xmalloc_array: called with zero size");
1419 if (count >= MAX_ALLOC_SIZE/size) {
1420 smb_panic("smb_xmalloc_array: alloc size too large");
1422 if ((p = SMB_MALLOC(size*count)) == NULL) {
1423 DEBUG(0, ("smb_xmalloc_array failed to allocate %lu * %lu bytes\n",
1424 (unsigned long)size, (unsigned long)count));
1425 smb_panic("smb_xmalloc_array: malloc failed");
1431 vasprintf that aborts on malloc fail
1434 int smb_xvasprintf(char **ptr, const char *format, va_list ap)
1441 n = vasprintf(ptr, format, ap2);
1443 if (n == -1 || ! *ptr) {
1444 smb_panic("smb_xvasprintf: out of memory");
1449 /*****************************************************************
1450 Get local hostname and cache result.
1451 *****************************************************************/
1453 char *myhostname(void)
1457 ret = get_myname(NULL);
1462 /*****************************************************************
1463 Get local hostname and cache result.
1464 *****************************************************************/
1466 char *myhostname_upper(void)
1470 char *name = get_myname(NULL);
1474 ret = strupper_talloc(NULL, name);
1481 * @brief Returns an absolute path to a file concatenating the provided
1482 * @a rootpath and @a basename
1484 * @param name Filename, relative to @a rootpath
1486 * @retval Pointer to a string containing the full path.
1489 static char *xx_path(const char *name, const char *rootpath)
1493 fname = talloc_strdup(talloc_tos(), rootpath);
1497 trim_string(fname,"","/");
1499 if (!directory_exist(fname)) {
1500 if (mkdir(fname,0755) == -1) {
1501 /* Did someone else win the race ? */
1502 if (errno != EEXIST) {
1503 DEBUG(1, ("Unable to create directory %s for file %s. "
1504 "Error was %s\n", fname, name, strerror(errno)));
1510 return talloc_asprintf_append(fname, "/%s", name);
1514 * @brief Returns an absolute path to a file in the Samba lock directory.
1516 * @param name File to find, relative to LOCKDIR.
1518 * @retval Pointer to a talloc'ed string containing the full path.
1521 char *lock_path(const char *name)
1523 return xx_path(name, lp_lock_directory());
1527 * @brief Returns an absolute path to a file in the Samba state directory.
1529 * @param name File to find, relative to STATEDIR.
1531 * @retval Pointer to a talloc'ed string containing the full path.
1534 char *state_path(const char *name)
1536 return xx_path(name, lp_state_directory());
1540 * @brief Returns an absolute path to a file in the Samba cache directory.
1542 * @param name File to find, relative to CACHEDIR.
1544 * @retval Pointer to a talloc'ed string containing the full path.
1547 char *cache_path(const char *name)
1549 return xx_path(name, lp_cache_directory());
1552 /*******************************************************************
1553 Given a filename - get its directory name
1554 ********************************************************************/
1556 bool parent_dirname(TALLOC_CTX *mem_ctx, const char *dir, char **parent,
1562 p = strrchr_m(dir, '/'); /* Find final '/', if any */
1565 if (!(*parent = talloc_strdup(mem_ctx, "."))) {
1576 if (!(*parent = (char *)talloc_memdup(mem_ctx, dir, len+1))) {
1579 (*parent)[len] = '\0';
1587 /*******************************************************************
1588 Determine if a pattern contains any Microsoft wildcard characters.
1589 *******************************************************************/
1591 bool ms_has_wild(const char *s)
1595 if (lp_posix_pathnames()) {
1596 /* With posix pathnames no characters are wild. */
1600 while ((c = *s++)) {
1613 bool ms_has_wild_w(const smb_ucs2_t *s)
1616 if (!s) return False;
1617 while ((c = *s++)) {
1619 case UCS2_CHAR('*'):
1620 case UCS2_CHAR('?'):
1621 case UCS2_CHAR('<'):
1622 case UCS2_CHAR('>'):
1623 case UCS2_CHAR('"'):
1630 /*******************************************************************
1631 A wrapper that handles case sensitivity and the special handling
1633 *******************************************************************/
1635 bool mask_match(const char *string, const char *pattern, bool is_case_sensitive)
1637 if (ISDOTDOT(string))
1642 return ms_fnmatch(pattern, string, Protocol <= PROTOCOL_LANMAN2, is_case_sensitive) == 0;
1645 /*******************************************************************
1646 A wrapper that handles case sensitivity and the special handling
1647 of the ".." name. Varient that is only called by old search code which requires
1648 pattern translation.
1649 *******************************************************************/
1651 bool mask_match_search(const char *string, const char *pattern, bool is_case_sensitive)
1653 if (ISDOTDOT(string))
1658 return ms_fnmatch(pattern, string, True, is_case_sensitive) == 0;
1661 /*******************************************************************
1662 A wrapper that handles a list of patters and calls mask_match()
1663 on each. Returns True if any of the patterns match.
1664 *******************************************************************/
1666 bool mask_match_list(const char *string, char **list, int listLen, bool is_case_sensitive)
1668 while (listLen-- > 0) {
1669 if (mask_match(string, *list++, is_case_sensitive))
1675 /*********************************************************
1676 Recursive routine that is called by unix_wild_match.
1677 *********************************************************/
1679 static bool unix_do_match(const char *regexp, const char *str)
1683 for( p = regexp; *p && *str; ) {
1694 * Look for a character matching
1695 * the one after the '*'.
1699 return true; /* Automatic match */
1702 while(*str && (*p != *str))
1706 * Patch from weidel@multichart.de. In the case of the regexp
1707 * '*XX*' we want to ensure there are at least 2 'X' characters
1708 * in the string after the '*' for a match to be made.
1715 * Eat all the characters that match, but count how many there were.
1718 while(*str && (*p == *str)) {
1724 * Now check that if the regexp had n identical characters that
1725 * matchcount had at least that many matches.
1728 while ( *(p+1) && (*(p+1) == *p)) {
1733 if ( matchcount <= 0 )
1737 str--; /* We've eaten the match char after the '*' */
1739 if(unix_do_match(p, str))
1761 if (!*p && str[0] == '.' && str[1] == 0)
1764 if (!*str && *p == '?') {
1770 if(!*str && (*p == '*' && p[1] == '\0'))
1776 /*******************************************************************
1777 Simple case insensitive interface to a UNIX wildcard matcher.
1778 Returns True if match, False if not.
1779 *******************************************************************/
1781 bool unix_wild_match(const char *pattern, const char *string)
1783 TALLOC_CTX *ctx = talloc_stackframe();
1789 p2 = talloc_strdup(ctx,pattern);
1790 s2 = talloc_strdup(ctx,string);
1795 if (!strlower_m(p2)) {
1799 if (!strlower_m(s2)) {
1804 /* Remove any *? and ** from the pattern as they are meaningless */
1805 for(p = p2; *p; p++) {
1806 while( *p == '*' && (p[1] == '?' ||p[1] == '*')) {
1807 memmove(&p[1], &p[2], strlen(&p[2])+1);
1811 if (strequal(p2,"*")) {
1816 ret = unix_do_match(p2, s2);
1821 /**********************************************************************
1822 Converts a name to a fully qualified domain name.
1823 Returns true if lookup succeeded, false if not (then fqdn is set to name)
1824 Note we deliberately use gethostbyname here, not getaddrinfo as we want
1825 to examine the h_aliases and I don't know how to do that with getaddrinfo.
1826 ***********************************************************************/
1828 bool name_to_fqdn(fstring fqdn, const char *name)
1831 struct hostent *hp = gethostbyname(name);
1833 if (!hp || !hp->h_name || !*hp->h_name) {
1834 DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name));
1835 fstrcpy(fqdn, name);
1839 /* Find out if the fqdn is returned as an alias
1840 * to cope with /etc/hosts files where the first
1841 * name is not the fqdn but the short name */
1842 if (hp->h_aliases && (! strchr_m(hp->h_name, '.'))) {
1844 for (i = 0; hp->h_aliases[i]; i++) {
1845 if (strchr_m(hp->h_aliases[i], '.')) {
1846 full = hp->h_aliases[i];
1851 if (full && (strcasecmp_m(full, "localhost.localdomain") == 0)) {
1852 DEBUG(1, ("WARNING: your /etc/hosts file may be broken!\n"));
1853 DEBUGADD(1, (" Specifing the machine hostname for address 127.0.0.1 may lead\n"));
1854 DEBUGADD(1, (" to Kerberos authentication problems as localhost.localdomain\n"));
1855 DEBUGADD(1, (" may end up being used instead of the real machine FQDN.\n"));
1862 DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, full));
1863 fstrcpy(fqdn, full);
1867 /**********************************************************************
1868 Append a DATA_BLOB to a talloc'ed object
1869 ***********************************************************************/
1871 void *talloc_append_blob(TALLOC_CTX *mem_ctx, void *buf, DATA_BLOB blob)
1873 size_t old_size = 0;
1876 if (blob.length == 0) {
1881 old_size = talloc_get_size(buf);
1884 result = (char *)TALLOC_REALLOC(mem_ctx, buf, old_size + blob.length);
1885 if (result == NULL) {
1889 memcpy(result + old_size, blob.data, blob.length);
1893 uint32 map_share_mode_to_deny_mode(uint32 share_access, uint32 private_options)
1895 switch (share_access & ~FILE_SHARE_DELETE) {
1896 case FILE_SHARE_NONE:
1898 case FILE_SHARE_READ:
1900 case FILE_SHARE_WRITE:
1902 case FILE_SHARE_READ|FILE_SHARE_WRITE:
1905 if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) {
1907 } else if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_FCB) {
1914 pid_t procid_to_pid(const struct server_id *proc)
1919 static uint32 my_vnn = NONCLUSTER_VNN;
1921 void set_my_vnn(uint32 vnn)
1923 DEBUG(10, ("vnn pid %d = %u\n", (int)getpid(), (unsigned int)vnn));
1927 uint32 get_my_vnn(void)
1932 static uint64_t my_unique_id = 0;
1934 void set_my_unique_id(uint64_t unique_id)
1936 my_unique_id = unique_id;
1939 struct server_id pid_to_procid(pid_t pid)
1941 struct server_id result;
1944 result.unique_id = my_unique_id;
1945 result.vnn = my_vnn;
1949 struct server_id procid_self(void)
1951 return pid_to_procid(getpid());
1954 bool procid_is_me(const struct server_id *pid)
1956 if (pid->pid != getpid())
1958 if (pid->task_id != 0)
1960 if (pid->vnn != my_vnn)
1965 struct server_id interpret_pid(const char *pid_string)
1967 return server_id_from_string(get_my_vnn(), pid_string);
1970 char *procid_str_static(const struct server_id *pid)
1972 return server_id_str(talloc_tos(), pid);
1975 bool procid_valid(const struct server_id *pid)
1977 return (pid->pid != (uint64_t)-1);
1980 bool procid_is_local(const struct server_id *pid)
1982 return pid->vnn == my_vnn;
1985 /****************************************************************
1986 Check if an offset into a buffer is safe.
1987 If this returns True it's safe to indirect into the byte at
1989 ****************************************************************/
1991 bool is_offset_safe(const char *buf_base, size_t buf_len, char *ptr, size_t off)
1993 const char *end_base = buf_base + buf_len;
1994 char *end_ptr = ptr + off;
1996 if (!buf_base || !ptr) {
2000 if (end_base < buf_base || end_ptr < ptr) {
2001 return False; /* wrap. */
2004 if (end_ptr < end_base) {
2010 /****************************************************************
2011 Return a safe pointer into a buffer, or NULL.
2012 ****************************************************************/
2014 char *get_safe_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2016 return is_offset_safe(buf_base, buf_len, ptr, off) ?
2020 /****************************************************************
2021 Return a safe pointer into a string within a buffer, or NULL.
2022 ****************************************************************/
2024 char *get_safe_str_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2026 if (!is_offset_safe(buf_base, buf_len, ptr, off)) {
2029 /* Check if a valid string exists at this offset. */
2030 if (skip_string(buf_base,buf_len, ptr + off) == NULL) {
2036 /****************************************************************
2037 Return an SVAL at a pointer, or failval if beyond the end.
2038 ****************************************************************/
2040 int get_safe_SVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval)
2043 * Note we use off+1 here, not off+2 as SVAL accesses ptr[0] and ptr[1],
2046 if (!is_offset_safe(buf_base, buf_len, ptr, off+1)) {
2049 return SVAL(ptr,off);
2052 /****************************************************************
2053 Return an IVAL at a pointer, or failval if beyond the end.
2054 ****************************************************************/
2056 int get_safe_IVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval)
2059 * Note we use off+3 here, not off+4 as IVAL accesses
2060 * ptr[0] ptr[1] ptr[2] ptr[3] NOT ptr[4].
2062 if (!is_offset_safe(buf_base, buf_len, ptr, off+3)) {
2065 return IVAL(ptr,off);
2068 /****************************************************************
2069 Split DOM\user into DOM and user. Do not mix with winbind variants of that
2070 call (they take care of winbind separator and other winbind specific settings).
2071 ****************************************************************/
2073 void split_domain_user(TALLOC_CTX *mem_ctx,
2074 const char *full_name,
2078 const char *p = NULL;
2080 p = strchr_m(full_name, '\\');
2083 *domain = talloc_strndup(mem_ctx, full_name,
2084 PTR_DIFF(p, full_name));
2085 *user = talloc_strdup(mem_ctx, p+1);
2087 *domain = talloc_strdup(mem_ctx, "");
2088 *user = talloc_strdup(mem_ctx, full_name);
2092 /****************************************************************
2093 strip off leading '\\' from a hostname
2094 ****************************************************************/
2096 const char *strip_hostname(const char *s)
2102 if (strlen_m(s) < 3) {
2106 if (s[0] == '\\') s++;
2107 if (s[0] == '\\') s++;
2112 bool any_nt_status_not_ok(NTSTATUS err1, NTSTATUS err2, NTSTATUS *result)
2114 if (!NT_STATUS_IS_OK(err1)) {
2118 if (!NT_STATUS_IS_OK(err2)) {
2125 int timeval_to_msec(struct timeval t)
2127 return t.tv_sec * 1000 + (t.tv_usec+999) / 1000;
2130 /*******************************************************************
2131 Check a given DOS pathname is valid for a share.
2132 ********************************************************************/
2134 char *valid_share_pathname(TALLOC_CTX *ctx, const char *dos_pathname)
2138 if (!dos_pathname) {
2142 ptr = talloc_strdup(ctx, dos_pathname);
2146 /* Convert any '\' paths to '/' */
2148 ptr = unix_clean_name(ctx, ptr);
2153 /* NT is braindead - it wants a C: prefix to a pathname ! So strip it. */
2154 if (strlen(ptr) > 2 && ptr[1] == ':' && ptr[0] != '/')
2157 /* Only absolute paths allowed. */
2164 /*******************************************************************
2165 Return True if the filename is one of the special executable types.
2166 ********************************************************************/
2168 bool is_executable(const char *fname)
2170 if ((fname = strrchr_m(fname,'.'))) {
2171 if (strequal(fname,".com") ||
2172 strequal(fname,".dll") ||
2173 strequal(fname,".exe") ||
2174 strequal(fname,".sym")) {
2181 /****************************************************************************
2182 Open a file with a share mode - old openX method - map into NTCreate.
2183 ****************************************************************************/
2185 bool map_open_params_to_ntcreate(const char *smb_base_fname,
2186 int deny_mode, int open_func,
2187 uint32 *paccess_mask,
2188 uint32 *pshare_mode,
2189 uint32 *pcreate_disposition,
2190 uint32 *pcreate_options,
2191 uint32_t *pprivate_flags)
2195 uint32 create_disposition;
2196 uint32 create_options = FILE_NON_DIRECTORY_FILE;
2197 uint32_t private_flags = 0;
2199 DEBUG(10,("map_open_params_to_ntcreate: fname = %s, deny_mode = 0x%x, "
2200 "open_func = 0x%x\n",
2201 smb_base_fname, (unsigned int)deny_mode,
2202 (unsigned int)open_func ));
2204 /* Create the NT compatible access_mask. */
2205 switch (GET_OPENX_MODE(deny_mode)) {
2206 case DOS_OPEN_EXEC: /* Implies read-only - used to be FILE_READ_DATA */
2207 case DOS_OPEN_RDONLY:
2208 access_mask = FILE_GENERIC_READ;
2210 case DOS_OPEN_WRONLY:
2211 access_mask = FILE_GENERIC_WRITE;
2215 access_mask = FILE_GENERIC_READ|FILE_GENERIC_WRITE;
2218 DEBUG(10,("map_open_params_to_ntcreate: bad open mode = 0x%x\n",
2219 (unsigned int)GET_OPENX_MODE(deny_mode)));
2223 /* Create the NT compatible create_disposition. */
2224 switch (open_func) {
2225 case OPENX_FILE_EXISTS_FAIL|OPENX_FILE_CREATE_IF_NOT_EXIST:
2226 create_disposition = FILE_CREATE;
2229 case OPENX_FILE_EXISTS_OPEN:
2230 create_disposition = FILE_OPEN;
2233 case OPENX_FILE_EXISTS_OPEN|OPENX_FILE_CREATE_IF_NOT_EXIST:
2234 create_disposition = FILE_OPEN_IF;
2237 case OPENX_FILE_EXISTS_TRUNCATE:
2238 create_disposition = FILE_OVERWRITE;
2241 case OPENX_FILE_EXISTS_TRUNCATE|OPENX_FILE_CREATE_IF_NOT_EXIST:
2242 create_disposition = FILE_OVERWRITE_IF;
2246 /* From samba4 - to be confirmed. */
2247 if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_EXEC) {
2248 create_disposition = FILE_CREATE;
2251 DEBUG(10,("map_open_params_to_ntcreate: bad "
2252 "open_func 0x%x\n", (unsigned int)open_func));
2256 /* Create the NT compatible share modes. */
2257 switch (GET_DENY_MODE(deny_mode)) {
2259 share_mode = FILE_SHARE_NONE;
2263 share_mode = FILE_SHARE_READ;
2267 share_mode = FILE_SHARE_WRITE;
2271 share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
2275 private_flags |= NTCREATEX_OPTIONS_PRIVATE_DENY_DOS;
2276 if (is_executable(smb_base_fname)) {
2277 share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
2279 if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_RDONLY) {
2280 share_mode = FILE_SHARE_READ;
2282 share_mode = FILE_SHARE_NONE;
2288 private_flags |= NTCREATEX_OPTIONS_PRIVATE_DENY_FCB;
2289 share_mode = FILE_SHARE_NONE;
2293 DEBUG(10,("map_open_params_to_ntcreate: bad deny_mode 0x%x\n",
2294 (unsigned int)GET_DENY_MODE(deny_mode) ));
2298 DEBUG(10,("map_open_params_to_ntcreate: file %s, access_mask = 0x%x, "
2299 "share_mode = 0x%x, create_disposition = 0x%x, "
2300 "create_options = 0x%x private_flags = 0x%x\n",
2302 (unsigned int)access_mask,
2303 (unsigned int)share_mode,
2304 (unsigned int)create_disposition,
2305 (unsigned int)create_options,
2306 (unsigned int)private_flags));
2309 *paccess_mask = access_mask;
2312 *pshare_mode = share_mode;
2314 if (pcreate_disposition) {
2315 *pcreate_disposition = create_disposition;
2317 if (pcreate_options) {
2318 *pcreate_options = create_options;
2320 if (pprivate_flags) {
2321 *pprivate_flags = private_flags;
2328 /*************************************************************************
2329 Return a talloced copy of a struct security_unix_token. NULL on fail.
2330 *************************************************************************/
2332 struct security_unix_token *copy_unix_token(TALLOC_CTX *ctx, const struct security_unix_token *tok)
2334 struct security_unix_token *cpy;
2336 cpy = talloc(ctx, struct security_unix_token);
2341 cpy->uid = tok->uid;
2342 cpy->gid = tok->gid;
2343 cpy->ngroups = tok->ngroups;
2345 /* Make this a talloc child of cpy. */
2346 cpy->groups = (gid_t *)talloc_memdup(
2347 cpy, tok->groups, tok->ngroups * sizeof(gid_t));
2358 /****************************************************************************
2359 Check that a file matches a particular file type.
2360 ****************************************************************************/
2362 bool dir_check_ftype(uint32_t mode, uint32_t dirtype)
2366 /* Check the "may have" search bits. */
2367 if (((mode & ~dirtype) &
2368 (FILE_ATTRIBUTE_HIDDEN |
2369 FILE_ATTRIBUTE_SYSTEM |
2370 FILE_ATTRIBUTE_DIRECTORY)) != 0) {
2374 /* Check the "must have" bits,
2375 which are the may have bits shifted eight */
2376 /* If must have bit is set, the file/dir can
2377 not be returned in search unless the matching
2378 file attribute is set */
2379 mask = ((dirtype >> 8) & (FILE_ATTRIBUTE_DIRECTORY|
2380 FILE_ATTRIBUTE_ARCHIVE|
2381 FILE_ATTRIBUTE_READONLY|
2382 FILE_ATTRIBUTE_HIDDEN|
2383 FILE_ATTRIBUTE_SYSTEM)); /* & 0x37 */
2385 if((mask & (mode & (FILE_ATTRIBUTE_DIRECTORY|
2386 FILE_ATTRIBUTE_ARCHIVE|
2387 FILE_ATTRIBUTE_READONLY|
2388 FILE_ATTRIBUTE_HIDDEN|
2389 FILE_ATTRIBUTE_SYSTEM))) == mask) {
2390 /* check if matching attribute present */