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 "popt_common.h"
28 #include "ctdbd_conn.h"
29 #include "../lib/util/util_pw.h"
31 /* Max allowable allococation - 256mb - 0x10000000 */
32 #define MAX_ALLOC_SIZE (1024*1024*256)
34 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
35 #ifdef WITH_NISPLUS_HOME
36 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
38 * The following lines are needed due to buggy include files
39 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
40 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
41 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
42 * an enum in /usr/include/rpcsvc/nis.h.
49 #if defined(GROUP_OBJ)
53 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
55 #include <rpcsvc/nis.h>
57 #endif /* WITH_NISPLUS_HOME */
58 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
60 static enum protocol_types Protocol = PROTOCOL_COREPLUS;
62 enum protocol_types get_Protocol(void)
67 void set_Protocol(enum protocol_types p)
72 static enum remote_arch_types ra_type = RA_UNKNOWN;
74 /***********************************************************************
75 Definitions for all names.
76 ***********************************************************************/
78 static char *smb_scope;
79 static int smb_num_netbios_names;
80 static char **smb_my_netbios_names;
82 /***********************************************************************
83 Allocate and set scope. Ensure upper case.
84 ***********************************************************************/
86 bool set_global_scope(const char *scope)
89 smb_scope = SMB_STRDUP(scope);
92 strupper_m(smb_scope);
96 /*********************************************************************
97 Ensure scope is never null string.
98 *********************************************************************/
100 const char *global_scope(void)
103 set_global_scope("");
107 static void free_netbios_names_array(void)
111 for (i = 0; i < smb_num_netbios_names; i++)
112 SAFE_FREE(smb_my_netbios_names[i]);
114 SAFE_FREE(smb_my_netbios_names);
115 smb_num_netbios_names = 0;
118 static bool allocate_my_netbios_names_array(size_t number)
120 free_netbios_names_array();
122 smb_num_netbios_names = number + 1;
123 smb_my_netbios_names = SMB_MALLOC_ARRAY( char *, smb_num_netbios_names );
125 if (!smb_my_netbios_names)
128 memset(smb_my_netbios_names, '\0', sizeof(char *) * smb_num_netbios_names);
132 static bool set_my_netbios_names(const char *name, int i)
134 SAFE_FREE(smb_my_netbios_names[i]);
136 smb_my_netbios_names[i] = SMB_STRDUP(name);
137 if (!smb_my_netbios_names[i])
139 strupper_m(smb_my_netbios_names[i]);
143 /***********************************************************************
144 Free memory allocated to global objects
145 ***********************************************************************/
147 void gfree_names(void)
149 gfree_netbios_names();
150 SAFE_FREE( smb_scope );
151 free_netbios_names_array();
152 free_local_machine_name();
155 void gfree_all( void )
165 const char *my_netbios_names(int i)
167 return smb_my_netbios_names[i];
170 bool set_netbios_aliases(const char **str_array)
174 /* Work out the max number of netbios aliases that we have */
175 for( namecount=0; str_array && (str_array[namecount] != NULL); namecount++ )
178 if ( global_myname() && *global_myname())
181 /* Allocate space for the netbios aliases */
182 if (!allocate_my_netbios_names_array(namecount))
185 /* Use the global_myname string first */
187 if ( global_myname() && *global_myname()) {
188 set_my_netbios_names( global_myname(), namecount );
194 for ( i = 0; str_array[i] != NULL; i++) {
196 bool duplicate = False;
198 /* Look for duplicates */
199 for( n=0; n<namecount; n++ ) {
200 if( strequal( str_array[i], my_netbios_names(n) ) ) {
206 if (!set_my_netbios_names(str_array[i], namecount))
215 /****************************************************************************
216 Common name initialization code.
217 ****************************************************************************/
219 bool init_names(void)
223 if (global_myname() == NULL || *global_myname() == '\0') {
224 if (!set_global_myname(myhostname())) {
225 DEBUG( 0, ( "init_names: malloc fail.\n" ) );
230 if (!set_netbios_aliases(lp_netbios_aliases())) {
231 DEBUG( 0, ( "init_names: malloc fail.\n" ) );
235 set_local_machine_name(global_myname(),false);
237 DEBUG( 5, ("Netbios name list:-\n") );
238 for( n=0; my_netbios_names(n); n++ ) {
239 DEBUGADD( 5, ("my_netbios_names[%d]=\"%s\"\n",
240 n, my_netbios_names(n) ) );
246 /**************************************************************************n
247 Code to cope with username/password auth options from the commandline.
248 Used mainly in client tools.
249 ****************************************************************************/
251 struct user_auth_info *user_auth_info_init(TALLOC_CTX *mem_ctx)
253 struct user_auth_info *result;
255 result = TALLOC_ZERO_P(mem_ctx, struct user_auth_info);
256 if (result == NULL) {
260 result->signing_state = Undefined;
264 const char *get_cmdline_auth_info_username(const struct user_auth_info *auth_info)
266 if (!auth_info->username) {
269 return auth_info->username;
272 void set_cmdline_auth_info_username(struct user_auth_info *auth_info,
273 const char *username)
275 TALLOC_FREE(auth_info->username);
276 auth_info->username = talloc_strdup(auth_info, username);
277 if (!auth_info->username) {
282 const char *get_cmdline_auth_info_domain(const struct user_auth_info *auth_info)
284 if (!auth_info->domain) {
287 return auth_info->domain;
290 void set_cmdline_auth_info_domain(struct user_auth_info *auth_info,
293 TALLOC_FREE(auth_info->domain);
294 auth_info->domain = talloc_strdup(auth_info, domain);
295 if (!auth_info->domain) {
300 const char *get_cmdline_auth_info_password(const struct user_auth_info *auth_info)
302 if (!auth_info->password) {
305 return auth_info->password;
308 void set_cmdline_auth_info_password(struct user_auth_info *auth_info,
309 const char *password)
311 TALLOC_FREE(auth_info->password);
312 if (password == NULL) {
315 auth_info->password = talloc_strdup(auth_info, password);
316 if (!auth_info->password) {
319 auth_info->got_pass = true;
322 bool set_cmdline_auth_info_signing_state(struct user_auth_info *auth_info,
325 auth_info->signing_state = -1;
326 if (strequal(arg, "off") || strequal(arg, "no") ||
327 strequal(arg, "false")) {
328 auth_info->signing_state = false;
329 } else if (strequal(arg, "on") || strequal(arg, "yes") ||
330 strequal(arg, "true") || strequal(arg, "auto")) {
331 auth_info->signing_state = true;
332 } else if (strequal(arg, "force") || strequal(arg, "required") ||
333 strequal(arg, "forced")) {
334 auth_info->signing_state = Required;
341 int get_cmdline_auth_info_signing_state(const struct user_auth_info *auth_info)
343 return auth_info->signing_state;
346 void set_cmdline_auth_info_use_ccache(struct user_auth_info *auth_info, bool b)
348 auth_info->use_ccache = b;
351 bool get_cmdline_auth_info_use_ccache(const struct user_auth_info *auth_info)
353 return auth_info->use_ccache;
356 void set_cmdline_auth_info_use_kerberos(struct user_auth_info *auth_info,
359 auth_info->use_kerberos = b;
362 bool get_cmdline_auth_info_use_kerberos(const struct user_auth_info *auth_info)
364 return auth_info->use_kerberos;
367 void set_cmdline_auth_info_fallback_after_kerberos(struct user_auth_info *auth_info,
370 auth_info->fallback_after_kerberos = b;
373 bool get_cmdline_auth_info_fallback_after_kerberos(const struct user_auth_info *auth_info)
375 return auth_info->fallback_after_kerberos;
378 /* This should only be used by lib/popt_common.c JRA */
379 void set_cmdline_auth_info_use_krb5_ticket(struct user_auth_info *auth_info)
381 auth_info->use_kerberos = true;
382 auth_info->got_pass = true;
385 /* This should only be used by lib/popt_common.c JRA */
386 void set_cmdline_auth_info_smb_encrypt(struct user_auth_info *auth_info)
388 auth_info->smb_encrypt = true;
391 void set_cmdline_auth_info_use_machine_account(struct user_auth_info *auth_info)
393 auth_info->use_machine_account = true;
396 bool get_cmdline_auth_info_got_pass(const struct user_auth_info *auth_info)
398 return auth_info->got_pass;
401 bool get_cmdline_auth_info_smb_encrypt(const struct user_auth_info *auth_info)
403 return auth_info->smb_encrypt;
406 bool get_cmdline_auth_info_use_machine_account(const struct user_auth_info *auth_info)
408 return auth_info->use_machine_account;
411 struct user_auth_info *get_cmdline_auth_info_copy(TALLOC_CTX *mem_ctx,
412 const struct user_auth_info *src)
414 struct user_auth_info *result;
416 result = user_auth_info_init(mem_ctx);
417 if (result == NULL) {
423 result->username = talloc_strdup(
424 result, get_cmdline_auth_info_username(src));
425 result->password = talloc_strdup(
426 result, get_cmdline_auth_info_password(src));
427 if ((result->username == NULL) || (result->password == NULL)) {
435 bool set_cmdline_auth_info_machine_account_creds(struct user_auth_info *auth_info)
438 char *account = NULL;
440 if (!get_cmdline_auth_info_use_machine_account(auth_info)) {
444 if (!secrets_init()) {
445 d_printf("ERROR: Unable to open secrets database\n");
449 if (asprintf(&account, "%s$@%s", global_myname(), lp_realm()) < 0) {
453 pass = secrets_fetch_machine_password(lp_workgroup(), NULL, NULL);
455 d_printf("ERROR: Unable to fetch machine password for "
457 account, lp_workgroup());
462 set_cmdline_auth_info_username(auth_info, account);
463 set_cmdline_auth_info_password(auth_info, pass);
471 /****************************************************************************
472 Ensure we have a password if one not given.
473 ****************************************************************************/
475 void set_cmdline_auth_info_getpass(struct user_auth_info *auth_info)
481 if (get_cmdline_auth_info_got_pass(auth_info) ||
482 get_cmdline_auth_info_use_kerberos(auth_info)) {
483 /* Already got one... */
487 frame = talloc_stackframe();
488 label = talloc_asprintf(frame, "Enter %s's password: ",
489 get_cmdline_auth_info_username(auth_info));
490 pass = getpass(label);
492 set_cmdline_auth_info_password(auth_info, pass);
497 /*******************************************************************
498 Check if a file exists - call vfs_file_exist for samba files.
499 ********************************************************************/
501 bool file_exist_stat(const char *fname,SMB_STRUCT_STAT *sbuf,
502 bool fake_dir_create_times)
508 if (sys_stat(fname, sbuf, fake_dir_create_times) != 0)
511 return((S_ISREG(sbuf->st_ex_mode)) || (S_ISFIFO(sbuf->st_ex_mode)));
514 /*******************************************************************
515 Check if a unix domain socket exists - call vfs_file_exist for samba files.
516 ********************************************************************/
518 bool socket_exist(const char *fname)
521 if (sys_stat(fname, &st, false) != 0)
524 return S_ISSOCK(st.st_ex_mode);
527 /*******************************************************************
528 Returns the size in bytes of the named given the stat struct.
529 ********************************************************************/
531 uint64_t get_file_size_stat(const SMB_STRUCT_STAT *sbuf)
533 return sbuf->st_ex_size;
536 /*******************************************************************
537 Returns the size in bytes of the named file.
538 ********************************************************************/
540 SMB_OFF_T get_file_size(char *file_name)
544 if (sys_stat(file_name, &buf, false) != 0)
545 return (SMB_OFF_T)-1;
546 return get_file_size_stat(&buf);
549 /*******************************************************************
550 Return a string representing an attribute for a file.
551 ********************************************************************/
553 char *attrib_string(uint16 mode)
559 if (mode & aVOLID) fstrcat(attrstr,"V");
560 if (mode & aDIR) fstrcat(attrstr,"D");
561 if (mode & aARCH) fstrcat(attrstr,"A");
562 if (mode & aHIDDEN) fstrcat(attrstr,"H");
563 if (mode & aSYSTEM) fstrcat(attrstr,"S");
564 if (mode & aRONLY) fstrcat(attrstr,"R");
566 return talloc_strdup(talloc_tos(), attrstr);
569 /*******************************************************************
570 Show a smb message structure.
571 ********************************************************************/
573 void show_msg(char *buf)
581 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
583 (int)CVAL(buf,smb_com),
584 (int)CVAL(buf,smb_rcls),
585 (int)CVAL(buf,smb_reh),
586 (int)SVAL(buf,smb_err),
587 (int)CVAL(buf,smb_flg),
588 (int)SVAL(buf,smb_flg2)));
589 DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
590 (int)SVAL(buf,smb_tid),
591 (int)SVAL(buf,smb_pid),
592 (int)SVAL(buf,smb_uid),
593 (int)SVAL(buf,smb_mid)));
594 DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct)));
596 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
597 DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i,
598 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
600 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
602 DEBUGADD(5,("smb_bcc=%d\n",bcc));
610 dump_data(10, (uint8 *)smb_buf(buf), bcc);
613 /*******************************************************************
614 Set the length and marker of an encrypted smb packet.
615 ********************************************************************/
617 void smb_set_enclen(char *buf,int len,uint16 enc_ctx_num)
619 _smb_setlen(buf,len);
623 SSVAL(buf,6,enc_ctx_num);
626 /*******************************************************************
627 Set the length and marker of an smb packet.
628 ********************************************************************/
630 void smb_setlen(char *buf,int len)
632 _smb_setlen(buf,len);
640 /*******************************************************************
641 Setup only the byte count for a smb message.
642 ********************************************************************/
644 int set_message_bcc(char *buf,int num_bytes)
646 int num_words = CVAL(buf,smb_wct);
647 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
648 _smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
649 return (smb_size + num_words*2 + num_bytes);
652 /*******************************************************************
653 Add a data blob to the end of a smb_buf, adjusting bcc and smb_len.
654 Return the bytes added
655 ********************************************************************/
657 ssize_t message_push_blob(uint8 **outbuf, DATA_BLOB blob)
659 size_t newlen = smb_len(*outbuf) + 4 + blob.length;
662 if (!(tmp = TALLOC_REALLOC_ARRAY(NULL, *outbuf, uint8, newlen))) {
663 DEBUG(0, ("talloc failed\n"));
668 memcpy(tmp + smb_len(tmp) + 4, blob.data, blob.length);
669 set_message_bcc((char *)tmp, smb_buflen(tmp) + blob.length);
673 /*******************************************************************
674 Reduce a file name, removing .. elements.
675 ********************************************************************/
677 static char *dos_clean_name(TALLOC_CTX *ctx, const char *s)
682 DEBUG(3,("dos_clean_name [%s]\n",s));
684 /* remove any double slashes */
685 str = talloc_all_string_sub(ctx, s, "\\\\", "\\");
690 /* Remove leading .\\ characters */
691 if(strncmp(str, ".\\", 2) == 0) {
692 trim_string(str, ".\\", NULL);
694 str = talloc_strdup(ctx, ".\\");
701 while ((p = strstr_m(str,"\\..\\")) != NULL) {
707 if ((p=strrchr_m(str,'\\')) != NULL) {
712 str = talloc_asprintf(ctx,
721 trim_string(str,NULL,"\\..");
722 return talloc_all_string_sub(ctx, str, "\\.\\", "\\");
725 /*******************************************************************
726 Reduce a file name, removing .. elements.
727 ********************************************************************/
729 char *unix_clean_name(TALLOC_CTX *ctx, const char *s)
734 DEBUG(3,("unix_clean_name [%s]\n",s));
736 /* remove any double slashes */
737 str = talloc_all_string_sub(ctx, s, "//","/");
742 /* Remove leading ./ characters */
743 if(strncmp(str, "./", 2) == 0) {
744 trim_string(str, "./", NULL);
746 str = talloc_strdup(ctx, "./");
753 while ((p = strstr_m(str,"/../")) != NULL) {
759 if ((p=strrchr_m(str,'/')) != NULL) {
764 str = talloc_asprintf(ctx,
773 trim_string(str,NULL,"/..");
774 return talloc_all_string_sub(ctx, str, "/./", "/");
777 char *clean_name(TALLOC_CTX *ctx, const char *s)
779 char *str = dos_clean_name(ctx, s);
783 return unix_clean_name(ctx, str);
786 /*******************************************************************
787 Write data into an fd at a given offset. Ignore seek errors.
788 ********************************************************************/
790 ssize_t write_data_at_offset(int fd, const char *buffer, size_t N, SMB_OFF_T pos)
795 if (pos == (SMB_OFF_T)-1) {
796 return write_data(fd, buffer, N);
798 #if defined(HAVE_PWRITE) || defined(HAVE_PRWITE64)
800 ret = sys_pwrite(fd,buffer + total,N - total, pos);
801 if (ret == -1 && errno == ESPIPE) {
802 return write_data(fd, buffer + total,N - total);
805 DEBUG(0,("write_data_at_offset: write failure. Error = %s\n", strerror(errno) ));
814 return (ssize_t)total;
816 /* Use lseek and write_data. */
817 if (sys_lseek(fd, pos, SEEK_SET) == -1) {
818 if (errno != ESPIPE) {
822 return write_data(fd, buffer, N);
827 NTSTATUS reinit_after_fork(struct messaging_context *msg_ctx,
828 struct event_context *ev_ctx,
830 bool parent_longlived)
832 NTSTATUS status = NT_STATUS_OK;
834 /* Reset the state of the random
835 * number generation system, so
836 * children do not get the same random
837 * numbers as each other */
838 set_need_random_reseed();
840 /* tdb needs special fork handling */
841 if (tdb_reopen_all(parent_longlived ? 1 : 0) == -1) {
842 DEBUG(0,("tdb_reopen_all failed.\n"));
843 status = NT_STATUS_OPEN_FAILED;
847 if (ev_ctx && tevent_re_initialise(ev_ctx) != 0) {
848 smb_panic(__location__ ": Failed to re-initialise event context");
853 * For clustering, we need to re-init our ctdbd connection after the
856 status = messaging_reinit(msg_ctx, id);
857 if (!NT_STATUS_IS_OK(status)) {
858 DEBUG(0,("messaging_reinit() failed: %s\n",
866 #if defined(PARANOID_MALLOC_CHECKER)
868 /****************************************************************************
869 Internal malloc wrapper. Externally visible.
870 ****************************************************************************/
872 void *malloc_(size_t size)
879 #define malloc(s) __ERROR_DONT_USE_MALLOC_DIRECTLY
882 /****************************************************************************
883 Internal calloc wrapper. Not externally visible.
884 ****************************************************************************/
886 static void *calloc_(size_t count, size_t size)
888 if (size == 0 || count == 0) {
892 return calloc(count, size);
893 #define calloc(n,s) __ERROR_DONT_USE_CALLOC_DIRECTLY
896 /****************************************************************************
897 Internal realloc wrapper. Not externally visible.
898 ****************************************************************************/
900 static void *realloc_(void *ptr, size_t size)
903 return realloc(ptr, size);
904 #define realloc(p,s) __ERROR_DONT_USE_RELLOC_DIRECTLY
907 #endif /* PARANOID_MALLOC_CHECKER */
909 /****************************************************************************
911 ****************************************************************************/
913 void *memalign_array(size_t el_size, size_t align, unsigned int count)
915 if (count >= MAX_ALLOC_SIZE/el_size) {
919 return sys_memalign(align, el_size*count);
922 /****************************************************************************
924 ****************************************************************************/
926 void *calloc_array(size_t size, size_t nmemb)
928 if (nmemb >= MAX_ALLOC_SIZE/size) {
931 if (size == 0 || nmemb == 0) {
934 #if defined(PARANOID_MALLOC_CHECKER)
935 return calloc_(nmemb, size);
937 return calloc(nmemb, size);
941 /****************************************************************************
942 Expand a pointer to be a particular size.
943 Note that this version of Realloc has an extra parameter that decides
944 whether to free the passed in storage on allocation failure or if the
947 This is designed for use in the typical idiom of :
949 p = SMB_REALLOC(p, size)
954 and not to have to keep track of the old 'p' contents to free later, nor
955 to worry if the size parameter was zero. In the case where NULL is returned
956 we guarentee that p has been freed.
958 If free later semantics are desired, then pass 'free_old_on_error' as False which
959 guarentees that the old contents are not freed on error, even if size == 0. To use
962 tmp = SMB_REALLOC_KEEP_OLD_ON_ERROR(p, size);
970 Changes were instigated by Coverity error checking. JRA.
971 ****************************************************************************/
973 void *Realloc(void *p, size_t size, bool free_old_on_error)
978 if (free_old_on_error) {
981 DEBUG(2,("Realloc asked for 0 bytes\n"));
985 #if defined(PARANOID_MALLOC_CHECKER)
987 ret = (void *)malloc_(size);
989 ret = (void *)realloc_(p,size);
993 ret = (void *)malloc(size);
995 ret = (void *)realloc(p,size);
1000 if (free_old_on_error && p) {
1003 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
1009 /****************************************************************************
1010 (Hopefully) efficient array append.
1011 ****************************************************************************/
1013 void add_to_large_array(TALLOC_CTX *mem_ctx, size_t element_size,
1014 void *element, void *_array, uint32 *num_elements,
1015 ssize_t *array_size)
1017 void **array = (void **)_array;
1019 if (*array_size < 0) {
1023 if (*array == NULL) {
1024 if (*array_size == 0) {
1028 if (*array_size >= MAX_ALLOC_SIZE/element_size) {
1032 *array = TALLOC(mem_ctx, element_size * (*array_size));
1033 if (*array == NULL) {
1038 if (*num_elements == *array_size) {
1041 if (*array_size >= MAX_ALLOC_SIZE/element_size) {
1045 *array = TALLOC_REALLOC(mem_ctx, *array,
1046 element_size * (*array_size));
1048 if (*array == NULL) {
1053 memcpy((char *)(*array) + element_size*(*num_elements),
1054 element, element_size);
1064 /****************************************************************************
1065 Get my own domain name, or "" if we have none.
1066 ****************************************************************************/
1068 char *get_mydnsdomname(TALLOC_CTX *ctx)
1070 const char *domname;
1073 domname = get_mydnsfullname();
1078 p = strchr_m(domname, '.');
1081 return talloc_strdup(ctx, p);
1083 return talloc_strdup(ctx, "");
1087 /****************************************************************************
1088 Interpret a protocol description string, with a default.
1089 ****************************************************************************/
1091 int interpret_protocol(const char *str,int def)
1093 if (strequal(str,"NT1"))
1094 return(PROTOCOL_NT1);
1095 if (strequal(str,"LANMAN2"))
1096 return(PROTOCOL_LANMAN2);
1097 if (strequal(str,"LANMAN1"))
1098 return(PROTOCOL_LANMAN1);
1099 if (strequal(str,"CORE"))
1100 return(PROTOCOL_CORE);
1101 if (strequal(str,"COREPLUS"))
1102 return(PROTOCOL_COREPLUS);
1103 if (strequal(str,"CORE+"))
1104 return(PROTOCOL_COREPLUS);
1106 DEBUG(0,("Unrecognised protocol level %s\n",str));
1112 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
1113 /******************************************************************
1114 Remove any mount options such as -rsize=2048,wsize=2048 etc.
1115 Based on a fix from <Thomas.Hepper@icem.de>.
1116 Returns a malloc'ed string.
1117 *******************************************************************/
1119 static char *strip_mount_options(TALLOC_CTX *ctx, const char *str)
1122 const char *p = str;
1123 while(*p && !isspace(*p))
1125 while(*p && isspace(*p))
1128 return talloc_strdup(ctx, p);
1134 /*******************************************************************
1135 Patch from jkf@soton.ac.uk
1136 Split Luke's automount_server into YP lookup and string splitter
1137 so can easily implement automount_path().
1138 Returns a malloc'ed string.
1139 *******************************************************************/
1141 #ifdef WITH_NISPLUS_HOME
1142 char *automount_lookup(TALLOC_CTX *ctx, const char *user_name)
1146 char *nis_map = (char *)lp_nis_home_map_name();
1148 char buffer[NIS_MAXATTRVAL + 1];
1153 snprintf(buffer, sizeof(buffer), "[key=%s],%s", user_name, nis_map);
1154 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
1156 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) {
1157 if (result->status != NIS_SUCCESS) {
1158 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
1160 object = result->objects.objects_val;
1161 if (object->zo_data.zo_type == ENTRY_OBJ) {
1162 entry = &object->zo_data.objdata_u.en_data;
1163 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
1164 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
1166 value = talloc_strdup(ctx,
1167 entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
1169 nis_freeresult(result);
1172 value = talloc_string_sub(ctx,
1179 nis_freeresult(result);
1182 value = strip_mount_options(ctx, value);
1183 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n",
1188 #else /* WITH_NISPLUS_HOME */
1190 char *automount_lookup(TALLOC_CTX *ctx, const char *user_name)
1194 int nis_error; /* returned by yp all functions */
1195 char *nis_result; /* yp_match inits this */
1196 int nis_result_len; /* and set this */
1197 char *nis_domain; /* yp_get_default_domain inits this */
1198 char *nis_map = (char *)lp_nis_home_map_name();
1200 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
1201 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
1205 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
1207 if ((nis_error = yp_match(nis_domain, nis_map, user_name,
1208 strlen(user_name), &nis_result,
1209 &nis_result_len)) == 0) {
1210 if (nis_result_len > 0 && nis_result[nis_result_len] == '\n') {
1211 nis_result[nis_result_len] = '\0';
1213 value = talloc_strdup(ctx, nis_result);
1217 value = strip_mount_options(ctx, value);
1218 } else if(nis_error == YPERR_KEY) {
1219 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
1220 user_name, nis_map));
1221 DEBUG(3, ("using defaults for server and home directory\n"));
1223 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
1224 yperr_string(nis_error), user_name, nis_map));
1228 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, value));
1232 #endif /* WITH_NISPLUS_HOME */
1235 /****************************************************************************
1236 Check if a process exists. Does this work on all unixes?
1237 ****************************************************************************/
1239 bool process_exists(const struct server_id pid)
1241 if (procid_is_me(&pid)) {
1245 if (procid_is_local(&pid)) {
1246 return (kill(pid.pid,0) == 0 || errno != ESRCH);
1249 #ifdef CLUSTER_SUPPORT
1250 return ctdbd_process_exists(messaging_ctdbd_connection(),
1257 /*******************************************************************
1258 Convert a uid into a user name.
1259 ********************************************************************/
1261 const char *uidtoname(uid_t uid)
1263 TALLOC_CTX *ctx = talloc_tos();
1265 struct passwd *pass = NULL;
1267 pass = getpwuid_alloc(ctx,uid);
1269 name = talloc_strdup(ctx,pass->pw_name);
1272 name = talloc_asprintf(ctx,
1279 /*******************************************************************
1280 Convert a gid into a group name.
1281 ********************************************************************/
1283 char *gidtoname(gid_t gid)
1287 grp = getgrgid(gid);
1289 return talloc_strdup(talloc_tos(), grp->gr_name);
1292 return talloc_asprintf(talloc_tos(),
1298 /*******************************************************************
1299 Convert a user name into a uid.
1300 ********************************************************************/
1302 uid_t nametouid(const char *name)
1304 struct passwd *pass;
1308 pass = Get_Pwnam_alloc(talloc_tos(), name);
1315 u = (uid_t)strtol(name, &p, 0);
1316 if ((p != name) && (*p == '\0'))
1322 /*******************************************************************
1323 Convert a name to a gid_t if possible. Return -1 if not a group.
1324 ********************************************************************/
1326 gid_t nametogid(const char *name)
1332 g = (gid_t)strtol(name, &p, 0);
1333 if ((p != name) && (*p == '\0'))
1336 grp = sys_getgrnam(name);
1338 return(grp->gr_gid);
1342 /*******************************************************************
1343 Something really nasty happened - panic !
1344 ********************************************************************/
1346 void smb_panic_s3(const char *why)
1351 DEBUG(0,("PANIC (pid %llu): %s\n",
1352 (unsigned long long)sys_getpid(), why));
1355 cmd = lp_panic_action();
1357 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
1358 result = system(cmd);
1361 DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
1364 DEBUG(0, ("smb_panic(): action returned status %d\n",
1365 WEXITSTATUS(result)));
1371 /*******************************************************************
1372 Print a backtrace of the stack to the debug log. This function
1373 DELIBERATELY LEAKS MEMORY. The expectation is that you should
1374 exit shortly after calling it.
1375 ********************************************************************/
1377 #ifdef HAVE_LIBUNWIND_H
1378 #include <libunwind.h>
1381 #ifdef HAVE_EXECINFO_H
1382 #include <execinfo.h>
1385 #ifdef HAVE_LIBEXC_H
1389 void log_stack_trace(void)
1391 #ifdef HAVE_LIBUNWIND
1392 /* Try to use libunwind before any other technique since on ia64
1393 * libunwind correctly walks the stack in more circumstances than
1396 unw_cursor_t cursor;
1401 unw_word_t ip, sp, off;
1403 procname[sizeof(procname) - 1] = '\0';
1405 if (unw_getcontext(&uc) != 0) {
1406 goto libunwind_failed;
1409 if (unw_init_local(&cursor, &uc) != 0) {
1410 goto libunwind_failed;
1413 DEBUG(0, ("BACKTRACE:\n"));
1417 unw_get_reg(&cursor, UNW_REG_IP, &ip);
1418 unw_get_reg(&cursor, UNW_REG_SP, &sp);
1420 switch (unw_get_proc_name(&cursor,
1421 procname, sizeof(procname) - 1, &off) ) {
1425 /* Name truncated. */
1426 DEBUGADD(0, (" #%u %s + %#llx [ip=%#llx] [sp=%#llx]\n",
1427 i, procname, (long long)off,
1428 (long long)ip, (long long) sp));
1431 /* case -UNW_ENOINFO: */
1432 /* case -UNW_EUNSPEC: */
1433 /* No symbol name found. */
1434 DEBUGADD(0, (" #%u %s [ip=%#llx] [sp=%#llx]\n",
1435 i, "<unknown symbol>",
1436 (long long)ip, (long long) sp));
1439 } while (unw_step(&cursor) > 0);
1444 DEBUG(0, ("unable to produce a stack trace with libunwind\n"));
1446 #elif HAVE_BACKTRACE_SYMBOLS
1447 void *backtrace_stack[BACKTRACE_STACK_SIZE];
1448 size_t backtrace_size;
1449 char **backtrace_strings;
1451 /* get the backtrace (stack frames) */
1452 backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE);
1453 backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size);
1455 DEBUG(0, ("BACKTRACE: %lu stack frames:\n",
1456 (unsigned long)backtrace_size));
1458 if (backtrace_strings) {
1461 for (i = 0; i < backtrace_size; i++)
1462 DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i]));
1464 /* Leak the backtrace_strings, rather than risk what free() might do */
1469 /* The IRIX libexc library provides an API for unwinding the stack. See
1470 * libexc(3) for details. Apparantly trace_back_stack leaks memory, but
1471 * since we are about to abort anyway, it hardly matters.
1474 #define NAMESIZE 32 /* Arbitrary */
1476 __uint64_t addrs[BACKTRACE_STACK_SIZE];
1477 char * names[BACKTRACE_STACK_SIZE];
1478 char namebuf[BACKTRACE_STACK_SIZE * NAMESIZE];
1485 ZERO_ARRAY(namebuf);
1487 /* We need to be root so we can open our /proc entry to walk
1488 * our stack. It also helps when we want to dump core.
1492 for (i = 0; i < BACKTRACE_STACK_SIZE; i++) {
1493 names[i] = namebuf + (i * NAMESIZE);
1496 levels = trace_back_stack(0, addrs, names,
1497 BACKTRACE_STACK_SIZE, NAMESIZE - 1);
1499 DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels));
1500 for (i = 0; i < levels; i++) {
1501 DEBUGADD(0, (" #%d 0x%llx %s\n", i, addrs[i], names[i]));
1506 DEBUG(0, ("unable to produce a stack trace on this platform\n"));
1510 /*******************************************************************
1511 A readdir wrapper which just returns the file name.
1512 ********************************************************************/
1514 const char *readdirname(SMB_STRUCT_DIR *p)
1516 SMB_STRUCT_DIRENT *ptr;
1522 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1526 dname = ptr->d_name;
1533 #ifdef HAVE_BROKEN_READDIR_NAME
1534 /* using /usr/ucb/cc is BAD */
1538 return talloc_strdup(talloc_tos(), dname);
1541 /*******************************************************************
1542 Utility function used to decide if the last component
1543 of a path matches a (possibly wildcarded) entry in a namelist.
1544 ********************************************************************/
1546 bool is_in_path(const char *name, name_compare_entry *namelist, bool case_sensitive)
1548 const char *last_component;
1550 /* if we have no list it's obviously not in the path */
1551 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) {
1555 DEBUG(8, ("is_in_path: %s\n", name));
1557 /* Get the last component of the unix name. */
1558 last_component = strrchr_m(name, '/');
1559 if (!last_component) {
1560 last_component = name;
1562 last_component++; /* Go past '/' */
1565 for(; namelist->name != NULL; namelist++) {
1566 if(namelist->is_wild) {
1567 if (mask_match(last_component, namelist->name, case_sensitive)) {
1568 DEBUG(8,("is_in_path: mask match succeeded\n"));
1572 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1573 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0))) {
1574 DEBUG(8,("is_in_path: match succeeded\n"));
1579 DEBUG(8,("is_in_path: match not found\n"));
1583 /*******************************************************************
1584 Strip a '/' separated list into an array of
1585 name_compare_enties structures suitable for
1586 passing to is_in_path(). We do this for
1587 speed so we can pre-parse all the names in the list
1588 and don't do it for each call to is_in_path().
1589 namelist is modified here and is assumed to be
1590 a copy owned by the caller.
1591 We also check if the entry contains a wildcard to
1592 remove a potentially expensive call to mask_match
1594 ********************************************************************/
1596 void set_namearray(name_compare_entry **ppname_array, const char *namelist)
1599 char *nameptr = (char *)namelist;
1600 int num_entries = 0;
1603 (*ppname_array) = NULL;
1605 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1608 /* We need to make two passes over the string. The
1609 first to count the number of elements, the second
1614 if ( *nameptr == '/' ) {
1615 /* cope with multiple (useless) /s) */
1619 /* anything left? */
1620 if ( *nameptr == '\0' )
1623 /* find the next '/' or consume remaining */
1624 name_end = strchr_m(nameptr, '/');
1625 if (name_end == NULL)
1626 name_end = (char *)nameptr + strlen(nameptr);
1628 /* next segment please */
1629 nameptr = name_end + 1;
1633 if(num_entries == 0)
1636 if(( (*ppname_array) = SMB_MALLOC_ARRAY(name_compare_entry, num_entries + 1)) == NULL) {
1637 DEBUG(0,("set_namearray: malloc fail\n"));
1641 /* Now copy out the names */
1642 nameptr = (char *)namelist;
1645 if ( *nameptr == '/' ) {
1646 /* cope with multiple (useless) /s) */
1650 /* anything left? */
1651 if ( *nameptr == '\0' )
1654 /* find the next '/' or consume remaining */
1655 name_end = strchr_m(nameptr, '/');
1659 name_end = nameptr + strlen(nameptr);
1661 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1662 if(((*ppname_array)[i].name = SMB_STRDUP(nameptr)) == NULL) {
1663 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1667 /* next segment please */
1668 nameptr = name_end + 1;
1672 (*ppname_array)[i].name = NULL;
1677 /****************************************************************************
1678 Routine to free a namearray.
1679 ****************************************************************************/
1681 void free_namearray(name_compare_entry *name_array)
1685 if(name_array == NULL)
1688 for(i=0; name_array[i].name!=NULL; i++)
1689 SAFE_FREE(name_array[i].name);
1690 SAFE_FREE(name_array);
1694 #define DBGC_CLASS DBGC_LOCKING
1696 /****************************************************************************
1697 Simple routine to query existing file locks. Cruft in NFS and 64->32 bit mapping
1698 is dealt with in posix.c
1699 Returns True if we have information regarding this lock region (and returns
1700 F_UNLCK in *ptype if the region is unlocked). False if the call failed.
1701 ****************************************************************************/
1703 bool fcntl_getlock(int fd, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid)
1705 SMB_STRUCT_FLOCK lock;
1708 DEBUG(8,("fcntl_getlock fd=%d offset=%.0f count=%.0f type=%d\n",
1709 fd,(double)*poffset,(double)*pcount,*ptype));
1711 lock.l_type = *ptype;
1712 lock.l_whence = SEEK_SET;
1713 lock.l_start = *poffset;
1714 lock.l_len = *pcount;
1717 ret = sys_fcntl_ptr(fd,SMB_F_GETLK,&lock);
1721 DEBUG(3,("fcntl_getlock: lock request failed at offset %.0f count %.0f type %d (%s)\n",
1722 (double)*poffset,(double)*pcount,*ptype,strerror(errno)));
1727 *ptype = lock.l_type;
1728 *poffset = lock.l_start;
1729 *pcount = lock.l_len;
1732 DEBUG(3,("fcntl_getlock: fd %d is returned info %d pid %u\n",
1733 fd, (int)lock.l_type, (unsigned int)lock.l_pid));
1738 #define DBGC_CLASS DBGC_ALL
1740 /*******************************************************************
1741 Is the name specified one of my netbios names.
1742 Returns true if it is equal, false otherwise.
1743 ********************************************************************/
1745 bool is_myname(const char *s)
1750 for (n=0; my_netbios_names(n); n++) {
1751 if (strequal(my_netbios_names(n), s)) {
1756 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1760 /*******************************************************************
1761 Is the name specified our workgroup/domain.
1762 Returns true if it is equal, false otherwise.
1763 ********************************************************************/
1765 bool is_myworkgroup(const char *s)
1769 if (strequal(s, lp_workgroup())) {
1773 DEBUG(8, ("is_myworkgroup(\"%s\") returns %d\n", s, ret));
1777 /*******************************************************************
1778 we distinguish between 2K and XP by the "Native Lan Manager" string
1779 WinXP => "Windows 2002 5.1"
1780 WinXP 64bit => "Windows XP 5.2"
1781 Win2k => "Windows 2000 5.0"
1782 NT4 => "Windows NT 4.0"
1783 Win9x => "Windows 4.0"
1784 Windows 2003 doesn't set the native lan manager string but
1785 they do set the domain to "Windows 2003 5.2" (probably a bug).
1786 ********************************************************************/
1788 void ra_lanman_string( const char *native_lanman )
1790 if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 )
1791 set_remote_arch( RA_WINXP );
1792 else if ( strcmp( native_lanman, "Windows XP 5.2" ) == 0 )
1793 set_remote_arch( RA_WINXP64 );
1794 else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 )
1795 set_remote_arch( RA_WIN2K3 );
1798 static const char *remote_arch_str;
1800 const char *get_remote_arch_str(void)
1802 if (!remote_arch_str) {
1805 return remote_arch_str;
1808 /*******************************************************************
1809 Set the horrid remote_arch string based on an enum.
1810 ********************************************************************/
1812 void set_remote_arch(enum remote_arch_types type)
1817 remote_arch_str = "WfWg";
1820 remote_arch_str = "OS2";
1823 remote_arch_str = "Win95";
1826 remote_arch_str = "WinNT";
1829 remote_arch_str = "Win2K";
1832 remote_arch_str = "WinXP";
1835 remote_arch_str = "WinXP64";
1838 remote_arch_str = "Win2K3";
1841 remote_arch_str = "Vista";
1844 remote_arch_str = "Samba";
1847 remote_arch_str = "CIFSFS";
1850 remote_arch_str = "OSX";
1853 ra_type = RA_UNKNOWN;
1854 remote_arch_str = "UNKNOWN";
1858 DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n",
1862 /*******************************************************************
1863 Get the remote_arch type.
1864 ********************************************************************/
1866 enum remote_arch_types get_remote_arch(void)
1871 const char *tab_depth(int level, int depth)
1873 if( CHECK_DEBUGLVL(level) ) {
1874 dbgtext("%*s", depth*4, "");
1879 /*****************************************************************************
1880 Provide a checksum on a string
1882 Input: s - the null-terminated character string for which the checksum
1885 Output: The checksum value calculated for s.
1886 *****************************************************************************/
1888 int str_checksum(const char *s)
1890 TDB_DATA key = string_tdb_data(s);
1891 return tdb_jenkins_hash(&key);
1894 /*****************************************************************
1895 Zero a memory area then free it. Used to catch bugs faster.
1896 *****************************************************************/
1898 void zero_free(void *p, size_t size)
1904 /*****************************************************************
1905 Set our open file limit to a requested max and return the limit.
1906 *****************************************************************/
1908 int set_maxfiles(int requested_max)
1910 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1912 int saved_current_limit;
1914 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1915 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1918 return requested_max;
1922 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1923 * account for the extra fd we need
1924 * as well as the log files and standard
1925 * handles etc. Save the limit we want to set in case
1926 * we are running on an OS that doesn't support this limit (AIX)
1927 * which always returns RLIM_INFINITY for rlp.rlim_max.
1930 /* Try raising the hard (max) limit to the requested amount. */
1932 #if defined(RLIM_INFINITY)
1933 if (rlp.rlim_max != RLIM_INFINITY) {
1934 int orig_max = rlp.rlim_max;
1936 if ( rlp.rlim_max < requested_max )
1937 rlp.rlim_max = requested_max;
1939 /* This failing is not an error - many systems (Linux) don't
1940 support our default request of 10,000 open files. JRA. */
1942 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1943 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1944 (int)rlp.rlim_max, strerror(errno) ));
1946 /* Set failed - restore original value from get. */
1947 rlp.rlim_max = orig_max;
1952 /* Now try setting the soft (current) limit. */
1954 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1956 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1957 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1958 (int)rlp.rlim_cur, strerror(errno) ));
1960 return saved_current_limit;
1963 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1964 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1967 return saved_current_limit;
1970 #if defined(RLIM_INFINITY)
1971 if(rlp.rlim_cur == RLIM_INFINITY)
1972 return saved_current_limit;
1975 if((int)rlp.rlim_cur > saved_current_limit)
1976 return saved_current_limit;
1978 return rlp.rlim_cur;
1979 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1981 * No way to know - just guess...
1983 return requested_max;
1987 /*****************************************************************
1988 malloc that aborts with smb_panic on fail or zero size.
1989 *****************************************************************/
1991 void *smb_xmalloc_array(size_t size, unsigned int count)
1995 smb_panic("smb_xmalloc_array: called with zero size");
1997 if (count >= MAX_ALLOC_SIZE/size) {
1998 smb_panic("smb_xmalloc_array: alloc size too large");
2000 if ((p = SMB_MALLOC(size*count)) == NULL) {
2001 DEBUG(0, ("smb_xmalloc_array failed to allocate %lu * %lu bytes\n",
2002 (unsigned long)size, (unsigned long)count));
2003 smb_panic("smb_xmalloc_array: malloc failed");
2009 vasprintf that aborts on malloc fail
2012 int smb_xvasprintf(char **ptr, const char *format, va_list ap)
2019 n = vasprintf(ptr, format, ap2);
2021 if (n == -1 || ! *ptr) {
2022 smb_panic("smb_xvasprintf: out of memory");
2027 /*****************************************************************
2028 Get local hostname and cache result.
2029 *****************************************************************/
2031 char *myhostname(void)
2035 ret = get_myname(NULL);
2041 * @brief Returns an absolute path to a file concatenating the provided
2042 * @a rootpath and @a basename
2044 * @param name Filename, relative to @a rootpath
2046 * @retval Pointer to a string containing the full path.
2049 static char *xx_path(const char *name, const char *rootpath)
2053 fname = talloc_strdup(talloc_tos(), rootpath);
2057 trim_string(fname,"","/");
2059 if (!directory_exist(fname)) {
2060 if (!mkdir(fname,0755))
2061 DEBUG(1, ("Unable to create directory %s for file %s. "
2062 "Error was %s\n", fname, name, strerror(errno)));
2065 return talloc_asprintf(talloc_tos(),
2072 * @brief Returns an absolute path to a file in the Samba lock directory.
2074 * @param name File to find, relative to LOCKDIR.
2076 * @retval Pointer to a talloc'ed string containing the full path.
2079 char *lock_path(const char *name)
2081 return xx_path(name, lp_lockdir());
2085 * @brief Returns an absolute path to a file in the Samba pid directory.
2087 * @param name File to find, relative to PIDDIR.
2089 * @retval Pointer to a talloc'ed string containing the full path.
2092 char *pid_path(const char *name)
2094 return xx_path(name, lp_piddir());
2098 * @brief Returns an absolute path to a file in the Samba lib directory.
2100 * @param name File to find, relative to LIBDIR.
2102 * @retval Pointer to a string containing the full path.
2105 char *lib_path(const char *name)
2107 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_LIBDIR(), name);
2111 * @brief Returns an absolute path to a file in the Samba modules directory.
2113 * @param name File to find, relative to MODULESDIR.
2115 * @retval Pointer to a string containing the full path.
2118 char *modules_path(const char *name)
2120 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_MODULESDIR(), name);
2124 * @brief Returns an absolute path to a file in the Samba data directory.
2126 * @param name File to find, relative to CODEPAGEDIR.
2128 * @retval Pointer to a talloc'ed string containing the full path.
2131 char *data_path(const char *name)
2133 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_CODEPAGEDIR(), name);
2137 * @brief Returns an absolute path to a file in the Samba state directory.
2139 * @param name File to find, relative to STATEDIR.
2141 * @retval Pointer to a talloc'ed string containing the full path.
2144 char *state_path(const char *name)
2146 return xx_path(name, lp_statedir());
2150 * @brief Returns an absolute path to a file in the Samba cache directory.
2152 * @param name File to find, relative to CACHEDIR.
2154 * @retval Pointer to a talloc'ed string containing the full path.
2157 char *cache_path(const char *name)
2159 return xx_path(name, lp_cachedir());
2163 * @brief Returns the platform specific shared library extension.
2165 * @retval Pointer to a const char * containing the extension.
2168 const char *shlib_ext(void)
2170 return get_dyn_SHLIBEXT();
2173 /*******************************************************************
2174 Given a filename - get its directory name
2175 ********************************************************************/
2177 bool parent_dirname(TALLOC_CTX *mem_ctx, const char *dir, char **parent,
2183 p = strrchr_m(dir, '/'); /* Find final '/', if any */
2186 if (!(*parent = talloc_strdup(mem_ctx, "."))) {
2197 if (!(*parent = (char *)TALLOC_MEMDUP(mem_ctx, dir, len+1))) {
2200 (*parent)[len] = '\0';
2208 /*******************************************************************
2209 Determine if a pattern contains any Microsoft wildcard characters.
2210 *******************************************************************/
2212 bool ms_has_wild(const char *s)
2216 if (lp_posix_pathnames()) {
2217 /* With posix pathnames no characters are wild. */
2221 while ((c = *s++)) {
2234 bool ms_has_wild_w(const smb_ucs2_t *s)
2237 if (!s) return False;
2238 while ((c = *s++)) {
2240 case UCS2_CHAR('*'):
2241 case UCS2_CHAR('?'):
2242 case UCS2_CHAR('<'):
2243 case UCS2_CHAR('>'):
2244 case UCS2_CHAR('"'):
2251 /*******************************************************************
2252 A wrapper that handles case sensitivity and the special handling
2254 *******************************************************************/
2256 bool mask_match(const char *string, const char *pattern, bool is_case_sensitive)
2258 if (ISDOTDOT(string))
2263 return ms_fnmatch(pattern, string, Protocol <= PROTOCOL_LANMAN2, is_case_sensitive) == 0;
2266 /*******************************************************************
2267 A wrapper that handles case sensitivity and the special handling
2268 of the ".." name. Varient that is only called by old search code which requires
2269 pattern translation.
2270 *******************************************************************/
2272 bool mask_match_search(const char *string, const char *pattern, bool is_case_sensitive)
2274 if (ISDOTDOT(string))
2279 return ms_fnmatch(pattern, string, True, is_case_sensitive) == 0;
2282 /*******************************************************************
2283 A wrapper that handles a list of patters and calls mask_match()
2284 on each. Returns True if any of the patterns match.
2285 *******************************************************************/
2287 bool mask_match_list(const char *string, char **list, int listLen, bool is_case_sensitive)
2289 while (listLen-- > 0) {
2290 if (mask_match(string, *list++, is_case_sensitive))
2296 /*********************************************************
2297 Recursive routine that is called by unix_wild_match.
2298 *********************************************************/
2300 static bool unix_do_match(const char *regexp, const char *str)
2304 for( p = regexp; *p && *str; ) {
2315 * Look for a character matching
2316 * the one after the '*'.
2320 return true; /* Automatic match */
2323 while(*str && (*p != *str))
2327 * Patch from weidel@multichart.de. In the case of the regexp
2328 * '*XX*' we want to ensure there are at least 2 'X' characters
2329 * in the string after the '*' for a match to be made.
2336 * Eat all the characters that match, but count how many there were.
2339 while(*str && (*p == *str)) {
2345 * Now check that if the regexp had n identical characters that
2346 * matchcount had at least that many matches.
2349 while ( *(p+1) && (*(p+1) == *p)) {
2354 if ( matchcount <= 0 )
2358 str--; /* We've eaten the match char after the '*' */
2360 if(unix_do_match(p, str))
2382 if (!*p && str[0] == '.' && str[1] == 0)
2385 if (!*str && *p == '?') {
2391 if(!*str && (*p == '*' && p[1] == '\0'))
2397 /*******************************************************************
2398 Simple case insensitive interface to a UNIX wildcard matcher.
2399 Returns True if match, False if not.
2400 *******************************************************************/
2402 bool unix_wild_match(const char *pattern, const char *string)
2404 TALLOC_CTX *ctx = talloc_stackframe();
2410 p2 = talloc_strdup(ctx,pattern);
2411 s2 = talloc_strdup(ctx,string);
2419 /* Remove any *? and ** from the pattern as they are meaningless */
2420 for(p = p2; *p; p++) {
2421 while( *p == '*' && (p[1] == '?' ||p[1] == '*')) {
2422 memmove(&p[1], &p[2], strlen(&p[2])+1);
2426 if (strequal(p2,"*")) {
2431 ret = unix_do_match(p2, s2);
2436 /**********************************************************************
2437 Converts a name to a fully qualified domain name.
2438 Returns true if lookup succeeded, false if not (then fqdn is set to name)
2439 Note we deliberately use gethostbyname here, not getaddrinfo as we want
2440 to examine the h_aliases and I don't know how to do that with getaddrinfo.
2441 ***********************************************************************/
2443 bool name_to_fqdn(fstring fqdn, const char *name)
2446 struct hostent *hp = gethostbyname(name);
2448 if (!hp || !hp->h_name || !*hp->h_name) {
2449 DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name));
2450 fstrcpy(fqdn, name);
2454 /* Find out if the fqdn is returned as an alias
2455 * to cope with /etc/hosts files where the first
2456 * name is not the fqdn but the short name */
2457 if (hp->h_aliases && (! strchr_m(hp->h_name, '.'))) {
2459 for (i = 0; hp->h_aliases[i]; i++) {
2460 if (strchr_m(hp->h_aliases[i], '.')) {
2461 full = hp->h_aliases[i];
2466 if (full && (StrCaseCmp(full, "localhost.localdomain") == 0)) {
2467 DEBUG(1, ("WARNING: your /etc/hosts file may be broken!\n"));
2468 DEBUGADD(1, (" Specifing the machine hostname for address 127.0.0.1 may lead\n"));
2469 DEBUGADD(1, (" to Kerberos authentication problems as localhost.localdomain\n"));
2470 DEBUGADD(1, (" may end up being used instead of the real machine FQDN.\n"));
2477 DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, full));
2478 fstrcpy(fqdn, full);
2482 /**********************************************************************
2483 Append a DATA_BLOB to a talloc'ed object
2484 ***********************************************************************/
2486 void *talloc_append_blob(TALLOC_CTX *mem_ctx, void *buf, DATA_BLOB blob)
2488 size_t old_size = 0;
2491 if (blob.length == 0) {
2496 old_size = talloc_get_size(buf);
2499 result = (char *)TALLOC_REALLOC(mem_ctx, buf, old_size + blob.length);
2500 if (result == NULL) {
2504 memcpy(result + old_size, blob.data, blob.length);
2508 uint32 map_share_mode_to_deny_mode(uint32 share_access, uint32 private_options)
2510 switch (share_access & ~FILE_SHARE_DELETE) {
2511 case FILE_SHARE_NONE:
2513 case FILE_SHARE_READ:
2515 case FILE_SHARE_WRITE:
2517 case FILE_SHARE_READ|FILE_SHARE_WRITE:
2520 if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) {
2522 } else if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_FCB) {
2529 pid_t procid_to_pid(const struct server_id *proc)
2534 static uint32 my_vnn = NONCLUSTER_VNN;
2536 void set_my_vnn(uint32 vnn)
2538 DEBUG(10, ("vnn pid %d = %u\n", (int)sys_getpid(), (unsigned int)vnn));
2542 uint32 get_my_vnn(void)
2547 static uint64_t my_unique_id = 0;
2549 void set_my_unique_id(uint64_t unique_id)
2551 my_unique_id = unique_id;
2554 struct server_id pid_to_procid(pid_t pid)
2556 struct server_id result;
2558 result.unique_id = my_unique_id;
2559 result.vnn = my_vnn;
2563 struct server_id procid_self(void)
2565 return pid_to_procid(sys_getpid());
2568 bool procid_equal(const struct server_id *p1, const struct server_id *p2)
2570 if (p1->pid != p2->pid)
2572 if (p1->vnn != p2->vnn)
2577 bool cluster_id_equal(const struct server_id *id1,
2578 const struct server_id *id2)
2580 return procid_equal(id1, id2);
2583 bool procid_is_me(const struct server_id *pid)
2585 if (pid->pid != sys_getpid())
2587 if (pid->vnn != my_vnn)
2592 struct server_id interpret_pid(const char *pid_string)
2594 struct server_id result;
2597 if (sscanf(pid_string, "%u:%d", &vnn, &pid) == 2) {
2601 else if (sscanf(pid_string, "%d", &pid) == 1) {
2602 result.vnn = get_my_vnn();
2606 result.vnn = NONCLUSTER_VNN;
2609 /* Assigning to result.pid may have overflowed
2610 Map negative pid to -1: i.e. error */
2611 if (result.pid < 0) {
2614 result.unique_id = 0;
2618 char *procid_str(TALLOC_CTX *mem_ctx, const struct server_id *pid)
2620 if (pid->vnn == NONCLUSTER_VNN) {
2621 return talloc_asprintf(mem_ctx,
2626 return talloc_asprintf(mem_ctx,
2633 char *procid_str_static(const struct server_id *pid)
2635 return procid_str(talloc_tos(), pid);
2638 bool procid_valid(const struct server_id *pid)
2640 return (pid->pid != -1);
2643 bool procid_is_local(const struct server_id *pid)
2645 return pid->vnn == my_vnn;
2648 /****************************************************************
2649 Check if offset/length fit into bufsize. Should probably be
2650 merged with is_offset_safe, but this would require a rewrite
2651 of lanman.c. Later :-)
2652 ****************************************************************/
2654 bool trans_oob(uint32_t bufsize, uint32_t offset, uint32_t length)
2656 if ((offset + length < offset) || (offset + length < length)) {
2660 if ((offset > bufsize) || (offset + length > bufsize)) {
2667 /****************************************************************
2668 Check if an offset into a buffer is safe.
2669 If this returns True it's safe to indirect into the byte at
2671 ****************************************************************/
2673 bool is_offset_safe(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2675 const char *end_base = buf_base + buf_len;
2676 char *end_ptr = ptr + off;
2678 if (!buf_base || !ptr) {
2682 if (end_base < buf_base || end_ptr < ptr) {
2683 return False; /* wrap. */
2686 if (end_ptr < end_base) {
2692 /****************************************************************
2693 Return a safe pointer into a buffer, or NULL.
2694 ****************************************************************/
2696 char *get_safe_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2698 return is_offset_safe(buf_base, buf_len, ptr, off) ?
2702 /****************************************************************
2703 Return a safe pointer into a string within a buffer, or NULL.
2704 ****************************************************************/
2706 char *get_safe_str_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2708 if (!is_offset_safe(buf_base, buf_len, ptr, off)) {
2711 /* Check if a valid string exists at this offset. */
2712 if (skip_string(buf_base,buf_len, ptr + off) == NULL) {
2718 /****************************************************************
2719 Return an SVAL at a pointer, or failval if beyond the end.
2720 ****************************************************************/
2722 int get_safe_SVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval)
2725 * Note we use off+1 here, not off+2 as SVAL accesses ptr[0] and ptr[1],
2728 if (!is_offset_safe(buf_base, buf_len, ptr, off+1)) {
2731 return SVAL(ptr,off);
2734 /****************************************************************
2735 Return an IVAL at a pointer, or failval if beyond the end.
2736 ****************************************************************/
2738 int get_safe_IVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval)
2741 * Note we use off+3 here, not off+4 as IVAL accesses
2742 * ptr[0] ptr[1] ptr[2] ptr[3] NOT ptr[4].
2744 if (!is_offset_safe(buf_base, buf_len, ptr, off+3)) {
2747 return IVAL(ptr,off);
2750 /****************************************************************
2751 Split DOM\user into DOM and user. Do not mix with winbind variants of that
2752 call (they take care of winbind separator and other winbind specific settings).
2753 ****************************************************************/
2755 void split_domain_user(TALLOC_CTX *mem_ctx,
2756 const char *full_name,
2760 const char *p = NULL;
2762 p = strchr_m(full_name, '\\');
2765 *domain = talloc_strndup(mem_ctx, full_name,
2766 PTR_DIFF(p, full_name));
2767 *user = talloc_strdup(mem_ctx, p+1);
2769 *domain = talloc_strdup(mem_ctx, "");
2770 *user = talloc_strdup(mem_ctx, full_name);
2776 Disable these now we have checked all code paths and ensured
2777 NULL returns on zero request. JRA.
2779 /****************************************************************
2780 talloc wrapper functions that guarentee a null pointer return
2782 ****************************************************************/
2784 #ifndef MAX_TALLOC_SIZE
2785 #define MAX_TALLOC_SIZE 0x10000000
2789 * talloc and zero memory.
2790 * - returns NULL if size is zero.
2793 void *_talloc_zero_zeronull(const void *ctx, size_t size, const char *name)
2801 p = talloc_named_const(ctx, size, name);
2804 memset(p, '\0', size);
2811 * memdup with a talloc.
2812 * - returns NULL if size is zero.
2815 void *_talloc_memdup_zeronull(const void *t, const void *p, size_t size, const char *name)
2823 newp = talloc_named_const(t, size, name);
2825 memcpy(newp, p, size);
2832 * alloc an array, checking for integer overflow in the array size.
2833 * - returns NULL if count or el_size are zero.
2836 void *_talloc_array_zeronull(const void *ctx, size_t el_size, unsigned count, const char *name)
2838 if (count >= MAX_TALLOC_SIZE/el_size) {
2842 if (el_size == 0 || count == 0) {
2846 return talloc_named_const(ctx, el_size * count, name);
2850 * alloc an zero array, checking for integer overflow in the array size
2851 * - returns NULL if count or el_size are zero.
2854 void *_talloc_zero_array_zeronull(const void *ctx, size_t el_size, unsigned count, const char *name)
2856 if (count >= MAX_TALLOC_SIZE/el_size) {
2860 if (el_size == 0 || count == 0) {
2864 return _talloc_zero(ctx, el_size * count, name);
2868 * Talloc wrapper that returns NULL if size == 0.
2870 void *talloc_zeronull(const void *context, size_t size, const char *name)
2875 return talloc_named_const(context, size, name);
2879 /****************************************************************
2880 strip off leading '\\' from a hostname
2881 ****************************************************************/
2883 const char *strip_hostname(const char *s)
2889 if (strlen_m(s) < 3) {
2893 if (s[0] == '\\') s++;
2894 if (s[0] == '\\') s++;
2899 bool tevent_req_poll_ntstatus(struct tevent_req *req,
2900 struct tevent_context *ev,
2903 bool ret = tevent_req_poll(req, ev);
2905 *status = map_nt_error_from_unix(errno);
2910 bool any_nt_status_not_ok(NTSTATUS err1, NTSTATUS err2, NTSTATUS *result)
2912 if (!NT_STATUS_IS_OK(err1)) {
2916 if (!NT_STATUS_IS_OK(err2)) {
2923 int timeval_to_msec(struct timeval t)
2925 return t.tv_sec * 1000 + (t.tv_usec+999) / 1000;