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 "popt_common.h"
27 #include "ctdbd_conn.h"
28 #include "../lib/util/util_pw.h"
30 /* Max allowable allococation - 256mb - 0x10000000 */
31 #define MAX_ALLOC_SIZE (1024*1024*256)
33 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
34 #ifdef WITH_NISPLUS_HOME
35 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
37 * The following lines are needed due to buggy include files
38 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
39 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
40 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
41 * an enum in /usr/include/rpcsvc/nis.h.
48 #if defined(GROUP_OBJ)
52 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
54 #include <rpcsvc/nis.h>
56 #endif /* WITH_NISPLUS_HOME */
57 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
59 static enum protocol_types Protocol = PROTOCOL_COREPLUS;
61 enum protocol_types get_Protocol(void)
66 void set_Protocol(enum protocol_types p)
71 static enum remote_arch_types ra_type = RA_UNKNOWN;
73 /***********************************************************************
74 Definitions for all names.
75 ***********************************************************************/
77 static char *smb_scope;
78 static int smb_num_netbios_names;
79 static char **smb_my_netbios_names;
81 /***********************************************************************
82 Allocate and set scope. Ensure upper case.
83 ***********************************************************************/
85 bool set_global_scope(const char *scope)
88 smb_scope = SMB_STRDUP(scope);
91 strupper_m(smb_scope);
95 /*********************************************************************
96 Ensure scope is never null string.
97 *********************************************************************/
99 const char *global_scope(void)
102 set_global_scope("");
106 static void free_netbios_names_array(void)
110 for (i = 0; i < smb_num_netbios_names; i++)
111 SAFE_FREE(smb_my_netbios_names[i]);
113 SAFE_FREE(smb_my_netbios_names);
114 smb_num_netbios_names = 0;
117 static bool allocate_my_netbios_names_array(size_t number)
119 free_netbios_names_array();
121 smb_num_netbios_names = number + 1;
122 smb_my_netbios_names = SMB_MALLOC_ARRAY( char *, smb_num_netbios_names );
124 if (!smb_my_netbios_names)
127 memset(smb_my_netbios_names, '\0', sizeof(char *) * smb_num_netbios_names);
131 static bool set_my_netbios_names(const char *name, int i)
133 SAFE_FREE(smb_my_netbios_names[i]);
135 smb_my_netbios_names[i] = SMB_STRDUP(name);
136 if (!smb_my_netbios_names[i])
138 strupper_m(smb_my_netbios_names[i]);
142 /***********************************************************************
143 Free memory allocated to global objects
144 ***********************************************************************/
146 void gfree_names(void)
148 gfree_netbios_names();
149 SAFE_FREE( smb_scope );
150 free_netbios_names_array();
151 free_local_machine_name();
154 void gfree_all( void )
164 const char *my_netbios_names(int i)
166 return smb_my_netbios_names[i];
169 bool set_netbios_aliases(const char **str_array)
173 /* Work out the max number of netbios aliases that we have */
174 for( namecount=0; str_array && (str_array[namecount] != NULL); namecount++ )
177 if ( global_myname() && *global_myname())
180 /* Allocate space for the netbios aliases */
181 if (!allocate_my_netbios_names_array(namecount))
184 /* Use the global_myname string first */
186 if ( global_myname() && *global_myname()) {
187 set_my_netbios_names( global_myname(), namecount );
193 for ( i = 0; str_array[i] != NULL; i++) {
195 bool duplicate = False;
197 /* Look for duplicates */
198 for( n=0; n<namecount; n++ ) {
199 if( strequal( str_array[i], my_netbios_names(n) ) ) {
205 if (!set_my_netbios_names(str_array[i], namecount))
214 /****************************************************************************
215 Common name initialization code.
216 ****************************************************************************/
218 bool init_names(void)
222 if (global_myname() == NULL || *global_myname() == '\0') {
223 if (!set_global_myname(myhostname())) {
224 DEBUG( 0, ( "init_names: malloc fail.\n" ) );
229 if (!set_netbios_aliases(lp_netbios_aliases())) {
230 DEBUG( 0, ( "init_names: malloc fail.\n" ) );
234 set_local_machine_name(global_myname(),false);
236 DEBUG( 5, ("Netbios name list:-\n") );
237 for( n=0; my_netbios_names(n); n++ ) {
238 DEBUGADD( 5, ("my_netbios_names[%d]=\"%s\"\n",
239 n, my_netbios_names(n) ) );
245 /**************************************************************************n
246 Code to cope with username/password auth options from the commandline.
247 Used mainly in client tools.
248 ****************************************************************************/
250 struct user_auth_info *user_auth_info_init(TALLOC_CTX *mem_ctx)
252 struct user_auth_info *result;
254 result = TALLOC_ZERO_P(mem_ctx, struct user_auth_info);
255 if (result == NULL) {
259 result->signing_state = Undefined;
263 const char *get_cmdline_auth_info_username(const struct user_auth_info *auth_info)
265 if (!auth_info->username) {
268 return auth_info->username;
271 void set_cmdline_auth_info_username(struct user_auth_info *auth_info,
272 const char *username)
274 TALLOC_FREE(auth_info->username);
275 auth_info->username = talloc_strdup(auth_info, username);
276 if (!auth_info->username) {
281 const char *get_cmdline_auth_info_domain(const struct user_auth_info *auth_info)
283 if (!auth_info->domain) {
286 return auth_info->domain;
289 void set_cmdline_auth_info_domain(struct user_auth_info *auth_info,
292 TALLOC_FREE(auth_info->domain);
293 auth_info->domain = talloc_strdup(auth_info, domain);
294 if (!auth_info->domain) {
299 const char *get_cmdline_auth_info_password(const struct user_auth_info *auth_info)
301 if (!auth_info->password) {
304 return auth_info->password;
307 void set_cmdline_auth_info_password(struct user_auth_info *auth_info,
308 const char *password)
310 TALLOC_FREE(auth_info->password);
311 if (password == NULL) {
314 auth_info->password = talloc_strdup(auth_info, password);
315 if (!auth_info->password) {
318 auth_info->got_pass = true;
321 bool set_cmdline_auth_info_signing_state(struct user_auth_info *auth_info,
324 auth_info->signing_state = -1;
325 if (strequal(arg, "off") || strequal(arg, "no") ||
326 strequal(arg, "false")) {
327 auth_info->signing_state = false;
328 } else if (strequal(arg, "on") || strequal(arg, "yes") ||
329 strequal(arg, "true") || strequal(arg, "auto")) {
330 auth_info->signing_state = true;
331 } else if (strequal(arg, "force") || strequal(arg, "required") ||
332 strequal(arg, "forced")) {
333 auth_info->signing_state = Required;
340 int get_cmdline_auth_info_signing_state(const struct user_auth_info *auth_info)
342 return auth_info->signing_state;
345 void set_cmdline_auth_info_use_ccache(struct user_auth_info *auth_info, bool b)
347 auth_info->use_ccache = b;
350 bool get_cmdline_auth_info_use_ccache(const struct user_auth_info *auth_info)
352 return auth_info->use_ccache;
355 void set_cmdline_auth_info_use_kerberos(struct user_auth_info *auth_info,
358 auth_info->use_kerberos = b;
361 bool get_cmdline_auth_info_use_kerberos(const struct user_auth_info *auth_info)
363 return auth_info->use_kerberos;
366 void set_cmdline_auth_info_fallback_after_kerberos(struct user_auth_info *auth_info,
369 auth_info->fallback_after_kerberos = b;
372 bool get_cmdline_auth_info_fallback_after_kerberos(const struct user_auth_info *auth_info)
374 return auth_info->fallback_after_kerberos;
377 /* This should only be used by lib/popt_common.c JRA */
378 void set_cmdline_auth_info_use_krb5_ticket(struct user_auth_info *auth_info)
380 auth_info->use_kerberos = true;
381 auth_info->got_pass = true;
384 /* This should only be used by lib/popt_common.c JRA */
385 void set_cmdline_auth_info_smb_encrypt(struct user_auth_info *auth_info)
387 auth_info->smb_encrypt = true;
390 void set_cmdline_auth_info_use_machine_account(struct user_auth_info *auth_info)
392 auth_info->use_machine_account = true;
395 bool get_cmdline_auth_info_got_pass(const struct user_auth_info *auth_info)
397 return auth_info->got_pass;
400 bool get_cmdline_auth_info_smb_encrypt(const struct user_auth_info *auth_info)
402 return auth_info->smb_encrypt;
405 bool get_cmdline_auth_info_use_machine_account(const struct user_auth_info *auth_info)
407 return auth_info->use_machine_account;
410 struct user_auth_info *get_cmdline_auth_info_copy(TALLOC_CTX *mem_ctx,
411 const struct user_auth_info *src)
413 struct user_auth_info *result;
415 result = user_auth_info_init(mem_ctx);
416 if (result == NULL) {
422 result->username = talloc_strdup(
423 result, get_cmdline_auth_info_username(src));
424 result->password = talloc_strdup(
425 result, get_cmdline_auth_info_password(src));
426 if ((result->username == NULL) || (result->password == NULL)) {
434 bool set_cmdline_auth_info_machine_account_creds(struct user_auth_info *auth_info)
437 char *account = NULL;
439 if (!get_cmdline_auth_info_use_machine_account(auth_info)) {
443 if (!secrets_init()) {
444 d_printf("ERROR: Unable to open secrets database\n");
448 if (asprintf(&account, "%s$@%s", global_myname(), lp_realm()) < 0) {
452 pass = secrets_fetch_machine_password(lp_workgroup(), NULL, NULL);
454 d_printf("ERROR: Unable to fetch machine password for "
456 account, lp_workgroup());
461 set_cmdline_auth_info_username(auth_info, account);
462 set_cmdline_auth_info_password(auth_info, pass);
470 /****************************************************************************
471 Ensure we have a password if one not given.
472 ****************************************************************************/
474 void set_cmdline_auth_info_getpass(struct user_auth_info *auth_info)
480 if (get_cmdline_auth_info_got_pass(auth_info) ||
481 get_cmdline_auth_info_use_kerberos(auth_info)) {
482 /* Already got one... */
486 frame = talloc_stackframe();
487 label = talloc_asprintf(frame, "Enter %s's password: ",
488 get_cmdline_auth_info_username(auth_info));
489 pass = getpass(label);
491 set_cmdline_auth_info_password(auth_info, pass);
496 /*******************************************************************
497 Check if a file exists - call vfs_file_exist for samba files.
498 ********************************************************************/
500 bool file_exist_stat(const char *fname,SMB_STRUCT_STAT *sbuf,
501 bool fake_dir_create_times)
507 if (sys_stat(fname, sbuf, fake_dir_create_times) != 0)
510 return((S_ISREG(sbuf->st_ex_mode)) || (S_ISFIFO(sbuf->st_ex_mode)));
513 /*******************************************************************
514 Check if a unix domain socket exists - call vfs_file_exist for samba files.
515 ********************************************************************/
517 bool socket_exist(const char *fname)
520 if (sys_stat(fname, &st, false) != 0)
523 return S_ISSOCK(st.st_ex_mode);
526 /*******************************************************************
527 Returns the size in bytes of the named given the stat struct.
528 ********************************************************************/
530 uint64_t get_file_size_stat(const SMB_STRUCT_STAT *sbuf)
532 return sbuf->st_ex_size;
535 /*******************************************************************
536 Returns the size in bytes of the named file.
537 ********************************************************************/
539 SMB_OFF_T get_file_size(char *file_name)
543 if (sys_stat(file_name, &buf, false) != 0)
544 return (SMB_OFF_T)-1;
545 return get_file_size_stat(&buf);
548 /*******************************************************************
549 Return a string representing an attribute for a file.
550 ********************************************************************/
552 char *attrib_string(uint16 mode)
558 if (mode & aVOLID) fstrcat(attrstr,"V");
559 if (mode & aDIR) fstrcat(attrstr,"D");
560 if (mode & aARCH) fstrcat(attrstr,"A");
561 if (mode & aHIDDEN) fstrcat(attrstr,"H");
562 if (mode & aSYSTEM) fstrcat(attrstr,"S");
563 if (mode & aRONLY) fstrcat(attrstr,"R");
565 return talloc_strdup(talloc_tos(), attrstr);
568 /*******************************************************************
569 Show a smb message structure.
570 ********************************************************************/
572 void show_msg(char *buf)
580 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
582 (int)CVAL(buf,smb_com),
583 (int)CVAL(buf,smb_rcls),
584 (int)CVAL(buf,smb_reh),
585 (int)SVAL(buf,smb_err),
586 (int)CVAL(buf,smb_flg),
587 (int)SVAL(buf,smb_flg2)));
588 DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
589 (int)SVAL(buf,smb_tid),
590 (int)SVAL(buf,smb_pid),
591 (int)SVAL(buf,smb_uid),
592 (int)SVAL(buf,smb_mid)));
593 DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct)));
595 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
596 DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i,
597 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
599 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
601 DEBUGADD(5,("smb_bcc=%d\n",bcc));
609 dump_data(10, (uint8 *)smb_buf(buf), bcc);
612 /*******************************************************************
613 Set the length and marker of an encrypted smb packet.
614 ********************************************************************/
616 void smb_set_enclen(char *buf,int len,uint16 enc_ctx_num)
618 _smb_setlen(buf,len);
622 SSVAL(buf,6,enc_ctx_num);
625 /*******************************************************************
626 Set the length and marker of an smb packet.
627 ********************************************************************/
629 void smb_setlen(char *buf,int len)
631 _smb_setlen(buf,len);
639 /*******************************************************************
640 Setup only the byte count for a smb message.
641 ********************************************************************/
643 int set_message_bcc(char *buf,int num_bytes)
645 int num_words = CVAL(buf,smb_wct);
646 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
647 _smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
648 return (smb_size + num_words*2 + num_bytes);
651 /*******************************************************************
652 Add a data blob to the end of a smb_buf, adjusting bcc and smb_len.
653 Return the bytes added
654 ********************************************************************/
656 ssize_t message_push_blob(uint8 **outbuf, DATA_BLOB blob)
658 size_t newlen = smb_len(*outbuf) + 4 + blob.length;
661 if (!(tmp = TALLOC_REALLOC_ARRAY(NULL, *outbuf, uint8, newlen))) {
662 DEBUG(0, ("talloc failed\n"));
667 memcpy(tmp + smb_len(tmp) + 4, blob.data, blob.length);
668 set_message_bcc((char *)tmp, smb_buflen(tmp) + blob.length);
672 /*******************************************************************
673 Reduce a file name, removing .. elements.
674 ********************************************************************/
676 static char *dos_clean_name(TALLOC_CTX *ctx, const char *s)
681 DEBUG(3,("dos_clean_name [%s]\n",s));
683 /* remove any double slashes */
684 str = talloc_all_string_sub(ctx, s, "\\\\", "\\");
689 /* Remove leading .\\ characters */
690 if(strncmp(str, ".\\", 2) == 0) {
691 trim_string(str, ".\\", NULL);
693 str = talloc_strdup(ctx, ".\\");
700 while ((p = strstr_m(str,"\\..\\")) != NULL) {
706 if ((p=strrchr_m(str,'\\')) != NULL) {
711 str = talloc_asprintf(ctx,
720 trim_string(str,NULL,"\\..");
721 return talloc_all_string_sub(ctx, str, "\\.\\", "\\");
724 /*******************************************************************
725 Reduce a file name, removing .. elements.
726 ********************************************************************/
728 char *unix_clean_name(TALLOC_CTX *ctx, const char *s)
733 DEBUG(3,("unix_clean_name [%s]\n",s));
735 /* remove any double slashes */
736 str = talloc_all_string_sub(ctx, s, "//","/");
741 /* Remove leading ./ characters */
742 if(strncmp(str, "./", 2) == 0) {
743 trim_string(str, "./", NULL);
745 str = talloc_strdup(ctx, "./");
752 while ((p = strstr_m(str,"/../")) != NULL) {
758 if ((p=strrchr_m(str,'/')) != NULL) {
763 str = talloc_asprintf(ctx,
772 trim_string(str,NULL,"/..");
773 return talloc_all_string_sub(ctx, str, "/./", "/");
776 char *clean_name(TALLOC_CTX *ctx, const char *s)
778 char *str = dos_clean_name(ctx, s);
782 return unix_clean_name(ctx, str);
785 /*******************************************************************
786 Write data into an fd at a given offset. Ignore seek errors.
787 ********************************************************************/
789 ssize_t write_data_at_offset(int fd, const char *buffer, size_t N, SMB_OFF_T pos)
794 if (pos == (SMB_OFF_T)-1) {
795 return write_data(fd, buffer, N);
797 #if defined(HAVE_PWRITE) || defined(HAVE_PRWITE64)
799 ret = sys_pwrite(fd,buffer + total,N - total, pos);
800 if (ret == -1 && errno == ESPIPE) {
801 return write_data(fd, buffer + total,N - total);
804 DEBUG(0,("write_data_at_offset: write failure. Error = %s\n", strerror(errno) ));
813 return (ssize_t)total;
815 /* Use lseek and write_data. */
816 if (sys_lseek(fd, pos, SEEK_SET) == -1) {
817 if (errno != ESPIPE) {
821 return write_data(fd, buffer, N);
826 NTSTATUS reinit_after_fork(struct messaging_context *msg_ctx,
827 struct event_context *ev_ctx,
829 bool parent_longlived)
831 NTSTATUS status = NT_STATUS_OK;
833 /* Reset the state of the random
834 * number generation system, so
835 * children do not get the same random
836 * numbers as each other */
837 set_need_random_reseed();
839 /* tdb needs special fork handling */
840 if (tdb_reopen_all(parent_longlived ? 1 : 0) == -1) {
841 DEBUG(0,("tdb_reopen_all failed.\n"));
842 status = NT_STATUS_OPEN_FAILED;
846 if (ev_ctx && tevent_re_initialise(ev_ctx) != 0) {
847 smb_panic(__location__ ": Failed to re-initialise event context");
852 * For clustering, we need to re-init our ctdbd connection after the
855 status = messaging_reinit(msg_ctx, id);
856 if (!NT_STATUS_IS_OK(status)) {
857 DEBUG(0,("messaging_reinit() failed: %s\n",
865 #if defined(PARANOID_MALLOC_CHECKER)
867 /****************************************************************************
868 Internal malloc wrapper. Externally visible.
869 ****************************************************************************/
871 void *malloc_(size_t size)
878 #define malloc(s) __ERROR_DONT_USE_MALLOC_DIRECTLY
881 /****************************************************************************
882 Internal calloc wrapper. Not externally visible.
883 ****************************************************************************/
885 static void *calloc_(size_t count, size_t size)
887 if (size == 0 || count == 0) {
891 return calloc(count, size);
892 #define calloc(n,s) __ERROR_DONT_USE_CALLOC_DIRECTLY
895 /****************************************************************************
896 Internal realloc wrapper. Not externally visible.
897 ****************************************************************************/
899 static void *realloc_(void *ptr, size_t size)
902 return realloc(ptr, size);
903 #define realloc(p,s) __ERROR_DONT_USE_RELLOC_DIRECTLY
906 #endif /* PARANOID_MALLOC_CHECKER */
908 /****************************************************************************
910 ****************************************************************************/
912 void *memalign_array(size_t el_size, size_t align, unsigned int count)
914 if (count >= MAX_ALLOC_SIZE/el_size) {
918 return sys_memalign(align, el_size*count);
921 /****************************************************************************
923 ****************************************************************************/
925 void *calloc_array(size_t size, size_t nmemb)
927 if (nmemb >= MAX_ALLOC_SIZE/size) {
930 if (size == 0 || nmemb == 0) {
933 #if defined(PARANOID_MALLOC_CHECKER)
934 return calloc_(nmemb, size);
936 return calloc(nmemb, size);
940 /****************************************************************************
941 Expand a pointer to be a particular size.
942 Note that this version of Realloc has an extra parameter that decides
943 whether to free the passed in storage on allocation failure or if the
946 This is designed for use in the typical idiom of :
948 p = SMB_REALLOC(p, size)
953 and not to have to keep track of the old 'p' contents to free later, nor
954 to worry if the size parameter was zero. In the case where NULL is returned
955 we guarentee that p has been freed.
957 If free later semantics are desired, then pass 'free_old_on_error' as False which
958 guarentees that the old contents are not freed on error, even if size == 0. To use
961 tmp = SMB_REALLOC_KEEP_OLD_ON_ERROR(p, size);
969 Changes were instigated by Coverity error checking. JRA.
970 ****************************************************************************/
972 void *Realloc(void *p, size_t size, bool free_old_on_error)
977 if (free_old_on_error) {
980 DEBUG(2,("Realloc asked for 0 bytes\n"));
984 #if defined(PARANOID_MALLOC_CHECKER)
986 ret = (void *)malloc_(size);
988 ret = (void *)realloc_(p,size);
992 ret = (void *)malloc(size);
994 ret = (void *)realloc(p,size);
999 if (free_old_on_error && p) {
1002 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
1008 /****************************************************************************
1009 (Hopefully) efficient array append.
1010 ****************************************************************************/
1012 void add_to_large_array(TALLOC_CTX *mem_ctx, size_t element_size,
1013 void *element, void *_array, uint32 *num_elements,
1014 ssize_t *array_size)
1016 void **array = (void **)_array;
1018 if (*array_size < 0) {
1022 if (*array == NULL) {
1023 if (*array_size == 0) {
1027 if (*array_size >= MAX_ALLOC_SIZE/element_size) {
1031 *array = TALLOC(mem_ctx, element_size * (*array_size));
1032 if (*array == NULL) {
1037 if (*num_elements == *array_size) {
1040 if (*array_size >= MAX_ALLOC_SIZE/element_size) {
1044 *array = TALLOC_REALLOC(mem_ctx, *array,
1045 element_size * (*array_size));
1047 if (*array == NULL) {
1052 memcpy((char *)(*array) + element_size*(*num_elements),
1053 element, element_size);
1063 /****************************************************************************
1064 Get my own domain name, or "" if we have none.
1065 ****************************************************************************/
1067 char *get_mydnsdomname(TALLOC_CTX *ctx)
1069 const char *domname;
1072 domname = get_mydnsfullname();
1077 p = strchr_m(domname, '.');
1080 return talloc_strdup(ctx, p);
1082 return talloc_strdup(ctx, "");
1086 /****************************************************************************
1087 Interpret a protocol description string, with a default.
1088 ****************************************************************************/
1090 int interpret_protocol(const char *str,int def)
1092 if (strequal(str,"NT1"))
1093 return(PROTOCOL_NT1);
1094 if (strequal(str,"LANMAN2"))
1095 return(PROTOCOL_LANMAN2);
1096 if (strequal(str,"LANMAN1"))
1097 return(PROTOCOL_LANMAN1);
1098 if (strequal(str,"CORE"))
1099 return(PROTOCOL_CORE);
1100 if (strequal(str,"COREPLUS"))
1101 return(PROTOCOL_COREPLUS);
1102 if (strequal(str,"CORE+"))
1103 return(PROTOCOL_COREPLUS);
1105 DEBUG(0,("Unrecognised protocol level %s\n",str));
1111 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
1112 /******************************************************************
1113 Remove any mount options such as -rsize=2048,wsize=2048 etc.
1114 Based on a fix from <Thomas.Hepper@icem.de>.
1115 Returns a malloc'ed string.
1116 *******************************************************************/
1118 static char *strip_mount_options(TALLOC_CTX *ctx, const char *str)
1121 const char *p = str;
1122 while(*p && !isspace(*p))
1124 while(*p && isspace(*p))
1127 return talloc_strdup(ctx, p);
1133 /*******************************************************************
1134 Patch from jkf@soton.ac.uk
1135 Split Luke's automount_server into YP lookup and string splitter
1136 so can easily implement automount_path().
1137 Returns a malloc'ed string.
1138 *******************************************************************/
1140 #ifdef WITH_NISPLUS_HOME
1141 char *automount_lookup(TALLOC_CTX *ctx, const char *user_name)
1145 char *nis_map = (char *)lp_nis_home_map_name();
1147 char buffer[NIS_MAXATTRVAL + 1];
1152 snprintf(buffer, sizeof(buffer), "[key=%s],%s", user_name, nis_map);
1153 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
1155 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) {
1156 if (result->status != NIS_SUCCESS) {
1157 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
1159 object = result->objects.objects_val;
1160 if (object->zo_data.zo_type == ENTRY_OBJ) {
1161 entry = &object->zo_data.objdata_u.en_data;
1162 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
1163 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
1165 value = talloc_strdup(ctx,
1166 entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
1168 nis_freeresult(result);
1171 value = talloc_string_sub(ctx,
1178 nis_freeresult(result);
1181 value = strip_mount_options(ctx, value);
1182 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n",
1187 #else /* WITH_NISPLUS_HOME */
1189 char *automount_lookup(TALLOC_CTX *ctx, const char *user_name)
1193 int nis_error; /* returned by yp all functions */
1194 char *nis_result; /* yp_match inits this */
1195 int nis_result_len; /* and set this */
1196 char *nis_domain; /* yp_get_default_domain inits this */
1197 char *nis_map = (char *)lp_nis_home_map_name();
1199 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
1200 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
1204 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
1206 if ((nis_error = yp_match(nis_domain, nis_map, user_name,
1207 strlen(user_name), &nis_result,
1208 &nis_result_len)) == 0) {
1209 if (nis_result_len > 0 && nis_result[nis_result_len] == '\n') {
1210 nis_result[nis_result_len] = '\0';
1212 value = talloc_strdup(ctx, nis_result);
1216 value = strip_mount_options(ctx, value);
1217 } else if(nis_error == YPERR_KEY) {
1218 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
1219 user_name, nis_map));
1220 DEBUG(3, ("using defaults for server and home directory\n"));
1222 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
1223 yperr_string(nis_error), user_name, nis_map));
1227 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, value));
1231 #endif /* WITH_NISPLUS_HOME */
1234 /****************************************************************************
1235 Check if a process exists. Does this work on all unixes?
1236 ****************************************************************************/
1238 bool process_exists(const struct server_id pid)
1240 if (procid_is_me(&pid)) {
1244 if (procid_is_local(&pid)) {
1245 return (kill(pid.pid,0) == 0 || errno != ESRCH);
1248 #ifdef CLUSTER_SUPPORT
1249 return ctdbd_process_exists(messaging_ctdbd_connection(),
1256 /*******************************************************************
1257 Convert a uid into a user name.
1258 ********************************************************************/
1260 const char *uidtoname(uid_t uid)
1262 TALLOC_CTX *ctx = talloc_tos();
1264 struct passwd *pass = NULL;
1266 pass = getpwuid_alloc(ctx,uid);
1268 name = talloc_strdup(ctx,pass->pw_name);
1271 name = talloc_asprintf(ctx,
1278 /*******************************************************************
1279 Convert a gid into a group name.
1280 ********************************************************************/
1282 char *gidtoname(gid_t gid)
1286 grp = getgrgid(gid);
1288 return talloc_strdup(talloc_tos(), grp->gr_name);
1291 return talloc_asprintf(talloc_tos(),
1297 /*******************************************************************
1298 Convert a user name into a uid.
1299 ********************************************************************/
1301 uid_t nametouid(const char *name)
1303 struct passwd *pass;
1307 pass = Get_Pwnam_alloc(talloc_tos(), name);
1314 u = (uid_t)strtol(name, &p, 0);
1315 if ((p != name) && (*p == '\0'))
1321 /*******************************************************************
1322 Convert a name to a gid_t if possible. Return -1 if not a group.
1323 ********************************************************************/
1325 gid_t nametogid(const char *name)
1331 g = (gid_t)strtol(name, &p, 0);
1332 if ((p != name) && (*p == '\0'))
1335 grp = sys_getgrnam(name);
1337 return(grp->gr_gid);
1341 /*******************************************************************
1342 Something really nasty happened - panic !
1343 ********************************************************************/
1345 void smb_panic_s3(const char *why)
1350 DEBUG(0,("PANIC (pid %llu): %s\n",
1351 (unsigned long long)sys_getpid(), why));
1354 cmd = lp_panic_action();
1356 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
1357 result = system(cmd);
1360 DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
1363 DEBUG(0, ("smb_panic(): action returned status %d\n",
1364 WEXITSTATUS(result)));
1370 /*******************************************************************
1371 Print a backtrace of the stack to the debug log. This function
1372 DELIBERATELY LEAKS MEMORY. The expectation is that you should
1373 exit shortly after calling it.
1374 ********************************************************************/
1376 #ifdef HAVE_LIBUNWIND_H
1377 #include <libunwind.h>
1380 #ifdef HAVE_EXECINFO_H
1381 #include <execinfo.h>
1384 #ifdef HAVE_LIBEXC_H
1388 void log_stack_trace(void)
1390 #ifdef HAVE_LIBUNWIND
1391 /* Try to use libunwind before any other technique since on ia64
1392 * libunwind correctly walks the stack in more circumstances than
1395 unw_cursor_t cursor;
1400 unw_word_t ip, sp, off;
1402 procname[sizeof(procname) - 1] = '\0';
1404 if (unw_getcontext(&uc) != 0) {
1405 goto libunwind_failed;
1408 if (unw_init_local(&cursor, &uc) != 0) {
1409 goto libunwind_failed;
1412 DEBUG(0, ("BACKTRACE:\n"));
1416 unw_get_reg(&cursor, UNW_REG_IP, &ip);
1417 unw_get_reg(&cursor, UNW_REG_SP, &sp);
1419 switch (unw_get_proc_name(&cursor,
1420 procname, sizeof(procname) - 1, &off) ) {
1424 /* Name truncated. */
1425 DEBUGADD(0, (" #%u %s + %#llx [ip=%#llx] [sp=%#llx]\n",
1426 i, procname, (long long)off,
1427 (long long)ip, (long long) sp));
1430 /* case -UNW_ENOINFO: */
1431 /* case -UNW_EUNSPEC: */
1432 /* No symbol name found. */
1433 DEBUGADD(0, (" #%u %s [ip=%#llx] [sp=%#llx]\n",
1434 i, "<unknown symbol>",
1435 (long long)ip, (long long) sp));
1438 } while (unw_step(&cursor) > 0);
1443 DEBUG(0, ("unable to produce a stack trace with libunwind\n"));
1445 #elif HAVE_BACKTRACE_SYMBOLS
1446 void *backtrace_stack[BACKTRACE_STACK_SIZE];
1447 size_t backtrace_size;
1448 char **backtrace_strings;
1450 /* get the backtrace (stack frames) */
1451 backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE);
1452 backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size);
1454 DEBUG(0, ("BACKTRACE: %lu stack frames:\n",
1455 (unsigned long)backtrace_size));
1457 if (backtrace_strings) {
1460 for (i = 0; i < backtrace_size; i++)
1461 DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i]));
1463 /* Leak the backtrace_strings, rather than risk what free() might do */
1468 /* The IRIX libexc library provides an API for unwinding the stack. See
1469 * libexc(3) for details. Apparantly trace_back_stack leaks memory, but
1470 * since we are about to abort anyway, it hardly matters.
1473 #define NAMESIZE 32 /* Arbitrary */
1475 __uint64_t addrs[BACKTRACE_STACK_SIZE];
1476 char * names[BACKTRACE_STACK_SIZE];
1477 char namebuf[BACKTRACE_STACK_SIZE * NAMESIZE];
1484 ZERO_ARRAY(namebuf);
1486 /* We need to be root so we can open our /proc entry to walk
1487 * our stack. It also helps when we want to dump core.
1491 for (i = 0; i < BACKTRACE_STACK_SIZE; i++) {
1492 names[i] = namebuf + (i * NAMESIZE);
1495 levels = trace_back_stack(0, addrs, names,
1496 BACKTRACE_STACK_SIZE, NAMESIZE - 1);
1498 DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels));
1499 for (i = 0; i < levels; i++) {
1500 DEBUGADD(0, (" #%d 0x%llx %s\n", i, addrs[i], names[i]));
1505 DEBUG(0, ("unable to produce a stack trace on this platform\n"));
1509 /*******************************************************************
1510 A readdir wrapper which just returns the file name.
1511 ********************************************************************/
1513 const char *readdirname(SMB_STRUCT_DIR *p)
1515 SMB_STRUCT_DIRENT *ptr;
1521 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1525 dname = ptr->d_name;
1532 #ifdef HAVE_BROKEN_READDIR_NAME
1533 /* using /usr/ucb/cc is BAD */
1537 return talloc_strdup(talloc_tos(), dname);
1540 /*******************************************************************
1541 Utility function used to decide if the last component
1542 of a path matches a (possibly wildcarded) entry in a namelist.
1543 ********************************************************************/
1545 bool is_in_path(const char *name, name_compare_entry *namelist, bool case_sensitive)
1547 const char *last_component;
1549 /* if we have no list it's obviously not in the path */
1550 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) {
1554 DEBUG(8, ("is_in_path: %s\n", name));
1556 /* Get the last component of the unix name. */
1557 last_component = strrchr_m(name, '/');
1558 if (!last_component) {
1559 last_component = name;
1561 last_component++; /* Go past '/' */
1564 for(; namelist->name != NULL; namelist++) {
1565 if(namelist->is_wild) {
1566 if (mask_match(last_component, namelist->name, case_sensitive)) {
1567 DEBUG(8,("is_in_path: mask match succeeded\n"));
1571 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1572 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0))) {
1573 DEBUG(8,("is_in_path: match succeeded\n"));
1578 DEBUG(8,("is_in_path: match not found\n"));
1582 /*******************************************************************
1583 Strip a '/' separated list into an array of
1584 name_compare_enties structures suitable for
1585 passing to is_in_path(). We do this for
1586 speed so we can pre-parse all the names in the list
1587 and don't do it for each call to is_in_path().
1588 namelist is modified here and is assumed to be
1589 a copy owned by the caller.
1590 We also check if the entry contains a wildcard to
1591 remove a potentially expensive call to mask_match
1593 ********************************************************************/
1595 void set_namearray(name_compare_entry **ppname_array, const char *namelist)
1598 char *nameptr = (char *)namelist;
1599 int num_entries = 0;
1602 (*ppname_array) = NULL;
1604 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1607 /* We need to make two passes over the string. The
1608 first to count the number of elements, the second
1613 if ( *nameptr == '/' ) {
1614 /* cope with multiple (useless) /s) */
1618 /* anything left? */
1619 if ( *nameptr == '\0' )
1622 /* find the next '/' or consume remaining */
1623 name_end = strchr_m(nameptr, '/');
1624 if (name_end == NULL)
1625 name_end = (char *)nameptr + strlen(nameptr);
1627 /* next segment please */
1628 nameptr = name_end + 1;
1632 if(num_entries == 0)
1635 if(( (*ppname_array) = SMB_MALLOC_ARRAY(name_compare_entry, num_entries + 1)) == NULL) {
1636 DEBUG(0,("set_namearray: malloc fail\n"));
1640 /* Now copy out the names */
1641 nameptr = (char *)namelist;
1644 if ( *nameptr == '/' ) {
1645 /* cope with multiple (useless) /s) */
1649 /* anything left? */
1650 if ( *nameptr == '\0' )
1653 /* find the next '/' or consume remaining */
1654 name_end = strchr_m(nameptr, '/');
1658 name_end = nameptr + strlen(nameptr);
1660 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1661 if(((*ppname_array)[i].name = SMB_STRDUP(nameptr)) == NULL) {
1662 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1666 /* next segment please */
1667 nameptr = name_end + 1;
1671 (*ppname_array)[i].name = NULL;
1676 /****************************************************************************
1677 Routine to free a namearray.
1678 ****************************************************************************/
1680 void free_namearray(name_compare_entry *name_array)
1684 if(name_array == NULL)
1687 for(i=0; name_array[i].name!=NULL; i++)
1688 SAFE_FREE(name_array[i].name);
1689 SAFE_FREE(name_array);
1693 #define DBGC_CLASS DBGC_LOCKING
1695 /****************************************************************************
1696 Simple routine to query existing file locks. Cruft in NFS and 64->32 bit mapping
1697 is dealt with in posix.c
1698 Returns True if we have information regarding this lock region (and returns
1699 F_UNLCK in *ptype if the region is unlocked). False if the call failed.
1700 ****************************************************************************/
1702 bool fcntl_getlock(int fd, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid)
1704 SMB_STRUCT_FLOCK lock;
1707 DEBUG(8,("fcntl_getlock fd=%d offset=%.0f count=%.0f type=%d\n",
1708 fd,(double)*poffset,(double)*pcount,*ptype));
1710 lock.l_type = *ptype;
1711 lock.l_whence = SEEK_SET;
1712 lock.l_start = *poffset;
1713 lock.l_len = *pcount;
1716 ret = sys_fcntl_ptr(fd,SMB_F_GETLK,&lock);
1720 DEBUG(3,("fcntl_getlock: lock request failed at offset %.0f count %.0f type %d (%s)\n",
1721 (double)*poffset,(double)*pcount,*ptype,strerror(errno)));
1726 *ptype = lock.l_type;
1727 *poffset = lock.l_start;
1728 *pcount = lock.l_len;
1731 DEBUG(3,("fcntl_getlock: fd %d is returned info %d pid %u\n",
1732 fd, (int)lock.l_type, (unsigned int)lock.l_pid));
1737 #define DBGC_CLASS DBGC_ALL
1739 /*******************************************************************
1740 Is the name specified one of my netbios names.
1741 Returns true if it is equal, false otherwise.
1742 ********************************************************************/
1744 bool is_myname(const char *s)
1749 for (n=0; my_netbios_names(n); n++) {
1750 if (strequal(my_netbios_names(n), s)) {
1755 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1759 /*******************************************************************
1760 Is the name specified our workgroup/domain.
1761 Returns true if it is equal, false otherwise.
1762 ********************************************************************/
1764 bool is_myworkgroup(const char *s)
1768 if (strequal(s, lp_workgroup())) {
1772 DEBUG(8, ("is_myworkgroup(\"%s\") returns %d\n", s, ret));
1776 /*******************************************************************
1777 we distinguish between 2K and XP by the "Native Lan Manager" string
1778 WinXP => "Windows 2002 5.1"
1779 WinXP 64bit => "Windows XP 5.2"
1780 Win2k => "Windows 2000 5.0"
1781 NT4 => "Windows NT 4.0"
1782 Win9x => "Windows 4.0"
1783 Windows 2003 doesn't set the native lan manager string but
1784 they do set the domain to "Windows 2003 5.2" (probably a bug).
1785 ********************************************************************/
1787 void ra_lanman_string( const char *native_lanman )
1789 if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 )
1790 set_remote_arch( RA_WINXP );
1791 else if ( strcmp( native_lanman, "Windows XP 5.2" ) == 0 )
1792 set_remote_arch( RA_WINXP64 );
1793 else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 )
1794 set_remote_arch( RA_WIN2K3 );
1797 static const char *remote_arch_str;
1799 const char *get_remote_arch_str(void)
1801 if (!remote_arch_str) {
1804 return remote_arch_str;
1807 /*******************************************************************
1808 Set the horrid remote_arch string based on an enum.
1809 ********************************************************************/
1811 void set_remote_arch(enum remote_arch_types type)
1816 remote_arch_str = "WfWg";
1819 remote_arch_str = "OS2";
1822 remote_arch_str = "Win95";
1825 remote_arch_str = "WinNT";
1828 remote_arch_str = "Win2K";
1831 remote_arch_str = "WinXP";
1834 remote_arch_str = "WinXP64";
1837 remote_arch_str = "Win2K3";
1840 remote_arch_str = "Vista";
1843 remote_arch_str = "Samba";
1846 remote_arch_str = "CIFSFS";
1849 remote_arch_str = "OSX";
1852 ra_type = RA_UNKNOWN;
1853 remote_arch_str = "UNKNOWN";
1857 DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n",
1861 /*******************************************************************
1862 Get the remote_arch type.
1863 ********************************************************************/
1865 enum remote_arch_types get_remote_arch(void)
1870 const char *tab_depth(int level, int depth)
1872 if( CHECK_DEBUGLVL(level) ) {
1873 dbgtext("%*s", depth*4, "");
1878 /*****************************************************************************
1879 Provide a checksum on a string
1881 Input: s - the null-terminated character string for which the checksum
1884 Output: The checksum value calculated for s.
1885 *****************************************************************************/
1887 int str_checksum(const char *s)
1889 TDB_DATA key = string_tdb_data(s);
1890 return tdb_jenkins_hash(&key);
1893 /*****************************************************************
1894 Zero a memory area then free it. Used to catch bugs faster.
1895 *****************************************************************/
1897 void zero_free(void *p, size_t size)
1903 /*****************************************************************
1904 Set our open file limit to a requested max and return the limit.
1905 *****************************************************************/
1907 int set_maxfiles(int requested_max)
1909 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1911 int saved_current_limit;
1913 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1914 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1917 return requested_max;
1921 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1922 * account for the extra fd we need
1923 * as well as the log files and standard
1924 * handles etc. Save the limit we want to set in case
1925 * we are running on an OS that doesn't support this limit (AIX)
1926 * which always returns RLIM_INFINITY for rlp.rlim_max.
1929 /* Try raising the hard (max) limit to the requested amount. */
1931 #if defined(RLIM_INFINITY)
1932 if (rlp.rlim_max != RLIM_INFINITY) {
1933 int orig_max = rlp.rlim_max;
1935 if ( rlp.rlim_max < requested_max )
1936 rlp.rlim_max = requested_max;
1938 /* This failing is not an error - many systems (Linux) don't
1939 support our default request of 10,000 open files. JRA. */
1941 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1942 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1943 (int)rlp.rlim_max, strerror(errno) ));
1945 /* Set failed - restore original value from get. */
1946 rlp.rlim_max = orig_max;
1951 /* Now try setting the soft (current) limit. */
1953 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1955 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1956 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1957 (int)rlp.rlim_cur, strerror(errno) ));
1959 return saved_current_limit;
1962 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1963 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1966 return saved_current_limit;
1969 #if defined(RLIM_INFINITY)
1970 if(rlp.rlim_cur == RLIM_INFINITY)
1971 return saved_current_limit;
1974 if((int)rlp.rlim_cur > saved_current_limit)
1975 return saved_current_limit;
1977 return rlp.rlim_cur;
1978 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1980 * No way to know - just guess...
1982 return requested_max;
1986 /*****************************************************************
1987 malloc that aborts with smb_panic on fail or zero size.
1988 *****************************************************************/
1990 void *smb_xmalloc_array(size_t size, unsigned int count)
1994 smb_panic("smb_xmalloc_array: called with zero size");
1996 if (count >= MAX_ALLOC_SIZE/size) {
1997 smb_panic("smb_xmalloc_array: alloc size too large");
1999 if ((p = SMB_MALLOC(size*count)) == NULL) {
2000 DEBUG(0, ("smb_xmalloc_array failed to allocate %lu * %lu bytes\n",
2001 (unsigned long)size, (unsigned long)count));
2002 smb_panic("smb_xmalloc_array: malloc failed");
2008 vasprintf that aborts on malloc fail
2011 int smb_xvasprintf(char **ptr, const char *format, va_list ap)
2018 n = vasprintf(ptr, format, ap2);
2020 if (n == -1 || ! *ptr) {
2021 smb_panic("smb_xvasprintf: out of memory");
2026 /*****************************************************************
2027 Get local hostname and cache result.
2028 *****************************************************************/
2030 char *myhostname(void)
2034 ret = get_myname(NULL);
2040 * @brief Returns an absolute path to a file concatenating the provided
2041 * @a rootpath and @a basename
2043 * @param name Filename, relative to @a rootpath
2045 * @retval Pointer to a string containing the full path.
2048 static char *xx_path(const char *name, const char *rootpath)
2052 fname = talloc_strdup(talloc_tos(), rootpath);
2056 trim_string(fname,"","/");
2058 if (!directory_exist(fname)) {
2059 if (!mkdir(fname,0755))
2060 DEBUG(1, ("Unable to create directory %s for file %s. "
2061 "Error was %s\n", fname, name, strerror(errno)));
2064 return talloc_asprintf(talloc_tos(),
2071 * @brief Returns an absolute path to a file in the Samba lock directory.
2073 * @param name File to find, relative to LOCKDIR.
2075 * @retval Pointer to a talloc'ed string containing the full path.
2078 char *lock_path(const char *name)
2080 return xx_path(name, lp_lockdir());
2084 * @brief Returns an absolute path to a file in the Samba pid directory.
2086 * @param name File to find, relative to PIDDIR.
2088 * @retval Pointer to a talloc'ed string containing the full path.
2091 char *pid_path(const char *name)
2093 return xx_path(name, lp_piddir());
2097 * @brief Returns an absolute path to a file in the Samba lib directory.
2099 * @param name File to find, relative to LIBDIR.
2101 * @retval Pointer to a string containing the full path.
2104 char *lib_path(const char *name)
2106 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_LIBDIR(), name);
2110 * @brief Returns an absolute path to a file in the Samba modules directory.
2112 * @param name File to find, relative to MODULESDIR.
2114 * @retval Pointer to a string containing the full path.
2117 char *modules_path(const char *name)
2119 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_MODULESDIR(), name);
2123 * @brief Returns an absolute path to a file in the Samba data directory.
2125 * @param name File to find, relative to CODEPAGEDIR.
2127 * @retval Pointer to a talloc'ed string containing the full path.
2130 char *data_path(const char *name)
2132 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_CODEPAGEDIR(), name);
2136 * @brief Returns an absolute path to a file in the Samba state directory.
2138 * @param name File to find, relative to STATEDIR.
2140 * @retval Pointer to a talloc'ed string containing the full path.
2143 char *state_path(const char *name)
2145 return xx_path(name, lp_statedir());
2149 * @brief Returns an absolute path to a file in the Samba cache directory.
2151 * @param name File to find, relative to CACHEDIR.
2153 * @retval Pointer to a talloc'ed string containing the full path.
2156 char *cache_path(const char *name)
2158 return xx_path(name, lp_cachedir());
2162 * @brief Returns the platform specific shared library extension.
2164 * @retval Pointer to a const char * containing the extension.
2167 const char *shlib_ext(void)
2169 return get_dyn_SHLIBEXT();
2172 /*******************************************************************
2173 Given a filename - get its directory name
2174 ********************************************************************/
2176 bool parent_dirname(TALLOC_CTX *mem_ctx, const char *dir, char **parent,
2182 p = strrchr_m(dir, '/'); /* Find final '/', if any */
2185 if (!(*parent = talloc_strdup(mem_ctx, "."))) {
2196 if (!(*parent = (char *)TALLOC_MEMDUP(mem_ctx, dir, len+1))) {
2199 (*parent)[len] = '\0';
2207 /*******************************************************************
2208 Determine if a pattern contains any Microsoft wildcard characters.
2209 *******************************************************************/
2211 bool ms_has_wild(const char *s)
2215 if (lp_posix_pathnames()) {
2216 /* With posix pathnames no characters are wild. */
2220 while ((c = *s++)) {
2233 bool ms_has_wild_w(const smb_ucs2_t *s)
2236 if (!s) return False;
2237 while ((c = *s++)) {
2239 case UCS2_CHAR('*'):
2240 case UCS2_CHAR('?'):
2241 case UCS2_CHAR('<'):
2242 case UCS2_CHAR('>'):
2243 case UCS2_CHAR('"'):
2250 /*******************************************************************
2251 A wrapper that handles case sensitivity and the special handling
2253 *******************************************************************/
2255 bool mask_match(const char *string, const char *pattern, bool is_case_sensitive)
2257 if (ISDOTDOT(string))
2262 return ms_fnmatch(pattern, string, Protocol <= PROTOCOL_LANMAN2, is_case_sensitive) == 0;
2265 /*******************************************************************
2266 A wrapper that handles case sensitivity and the special handling
2267 of the ".." name. Varient that is only called by old search code which requires
2268 pattern translation.
2269 *******************************************************************/
2271 bool mask_match_search(const char *string, const char *pattern, bool is_case_sensitive)
2273 if (ISDOTDOT(string))
2278 return ms_fnmatch(pattern, string, True, is_case_sensitive) == 0;
2281 /*******************************************************************
2282 A wrapper that handles a list of patters and calls mask_match()
2283 on each. Returns True if any of the patterns match.
2284 *******************************************************************/
2286 bool mask_match_list(const char *string, char **list, int listLen, bool is_case_sensitive)
2288 while (listLen-- > 0) {
2289 if (mask_match(string, *list++, is_case_sensitive))
2295 /*********************************************************
2296 Recursive routine that is called by unix_wild_match.
2297 *********************************************************/
2299 static bool unix_do_match(const char *regexp, const char *str)
2303 for( p = regexp; *p && *str; ) {
2314 * Look for a character matching
2315 * the one after the '*'.
2319 return true; /* Automatic match */
2322 while(*str && (*p != *str))
2326 * Patch from weidel@multichart.de. In the case of the regexp
2327 * '*XX*' we want to ensure there are at least 2 'X' characters
2328 * in the string after the '*' for a match to be made.
2335 * Eat all the characters that match, but count how many there were.
2338 while(*str && (*p == *str)) {
2344 * Now check that if the regexp had n identical characters that
2345 * matchcount had at least that many matches.
2348 while ( *(p+1) && (*(p+1) == *p)) {
2353 if ( matchcount <= 0 )
2357 str--; /* We've eaten the match char after the '*' */
2359 if(unix_do_match(p, str))
2381 if (!*p && str[0] == '.' && str[1] == 0)
2384 if (!*str && *p == '?') {
2390 if(!*str && (*p == '*' && p[1] == '\0'))
2396 /*******************************************************************
2397 Simple case insensitive interface to a UNIX wildcard matcher.
2398 Returns True if match, False if not.
2399 *******************************************************************/
2401 bool unix_wild_match(const char *pattern, const char *string)
2403 TALLOC_CTX *ctx = talloc_stackframe();
2409 p2 = talloc_strdup(ctx,pattern);
2410 s2 = talloc_strdup(ctx,string);
2418 /* Remove any *? and ** from the pattern as they are meaningless */
2419 for(p = p2; *p; p++) {
2420 while( *p == '*' && (p[1] == '?' ||p[1] == '*')) {
2421 memmove(&p[1], &p[2], strlen(&p[2])+1);
2425 if (strequal(p2,"*")) {
2430 ret = unix_do_match(p2, s2);
2435 /**********************************************************************
2436 Converts a name to a fully qualified domain name.
2437 Returns true if lookup succeeded, false if not (then fqdn is set to name)
2438 Note we deliberately use gethostbyname here, not getaddrinfo as we want
2439 to examine the h_aliases and I don't know how to do that with getaddrinfo.
2440 ***********************************************************************/
2442 bool name_to_fqdn(fstring fqdn, const char *name)
2445 struct hostent *hp = gethostbyname(name);
2447 if (!hp || !hp->h_name || !*hp->h_name) {
2448 DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name));
2449 fstrcpy(fqdn, name);
2453 /* Find out if the fqdn is returned as an alias
2454 * to cope with /etc/hosts files where the first
2455 * name is not the fqdn but the short name */
2456 if (hp->h_aliases && (! strchr_m(hp->h_name, '.'))) {
2458 for (i = 0; hp->h_aliases[i]; i++) {
2459 if (strchr_m(hp->h_aliases[i], '.')) {
2460 full = hp->h_aliases[i];
2465 if (full && (StrCaseCmp(full, "localhost.localdomain") == 0)) {
2466 DEBUG(1, ("WARNING: your /etc/hosts file may be broken!\n"));
2467 DEBUGADD(1, (" Specifing the machine hostname for address 127.0.0.1 may lead\n"));
2468 DEBUGADD(1, (" to Kerberos authentication problems as localhost.localdomain\n"));
2469 DEBUGADD(1, (" may end up being used instead of the real machine FQDN.\n"));
2476 DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, full));
2477 fstrcpy(fqdn, full);
2481 /**********************************************************************
2482 Append a DATA_BLOB to a talloc'ed object
2483 ***********************************************************************/
2485 void *talloc_append_blob(TALLOC_CTX *mem_ctx, void *buf, DATA_BLOB blob)
2487 size_t old_size = 0;
2490 if (blob.length == 0) {
2495 old_size = talloc_get_size(buf);
2498 result = (char *)TALLOC_REALLOC(mem_ctx, buf, old_size + blob.length);
2499 if (result == NULL) {
2503 memcpy(result + old_size, blob.data, blob.length);
2507 uint32 map_share_mode_to_deny_mode(uint32 share_access, uint32 private_options)
2509 switch (share_access & ~FILE_SHARE_DELETE) {
2510 case FILE_SHARE_NONE:
2512 case FILE_SHARE_READ:
2514 case FILE_SHARE_WRITE:
2516 case FILE_SHARE_READ|FILE_SHARE_WRITE:
2519 if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) {
2521 } else if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_FCB) {
2528 pid_t procid_to_pid(const struct server_id *proc)
2533 static uint32 my_vnn = NONCLUSTER_VNN;
2535 void set_my_vnn(uint32 vnn)
2537 DEBUG(10, ("vnn pid %d = %u\n", (int)sys_getpid(), (unsigned int)vnn));
2541 uint32 get_my_vnn(void)
2546 static uint64_t my_unique_id = 0;
2548 void set_my_unique_id(uint64_t unique_id)
2550 my_unique_id = unique_id;
2553 struct server_id pid_to_procid(pid_t pid)
2555 struct server_id result;
2557 result.unique_id = my_unique_id;
2558 result.vnn = my_vnn;
2562 struct server_id procid_self(void)
2564 return pid_to_procid(sys_getpid());
2567 bool procid_equal(const struct server_id *p1, const struct server_id *p2)
2569 if (p1->pid != p2->pid)
2571 if (p1->vnn != p2->vnn)
2576 bool cluster_id_equal(const struct server_id *id1,
2577 const struct server_id *id2)
2579 return procid_equal(id1, id2);
2582 bool procid_is_me(const struct server_id *pid)
2584 if (pid->pid != sys_getpid())
2586 if (pid->vnn != my_vnn)
2591 struct server_id interpret_pid(const char *pid_string)
2593 struct server_id result;
2596 if (sscanf(pid_string, "%u:%d", &vnn, &pid) == 2) {
2600 else if (sscanf(pid_string, "%d", &pid) == 1) {
2601 result.vnn = get_my_vnn();
2605 result.vnn = NONCLUSTER_VNN;
2608 /* Assigning to result.pid may have overflowed
2609 Map negative pid to -1: i.e. error */
2610 if (result.pid < 0) {
2613 result.unique_id = 0;
2617 char *procid_str(TALLOC_CTX *mem_ctx, const struct server_id *pid)
2619 if (pid->vnn == NONCLUSTER_VNN) {
2620 return talloc_asprintf(mem_ctx,
2625 return talloc_asprintf(mem_ctx,
2632 char *procid_str_static(const struct server_id *pid)
2634 return procid_str(talloc_tos(), pid);
2637 bool procid_valid(const struct server_id *pid)
2639 return (pid->pid != -1);
2642 bool procid_is_local(const struct server_id *pid)
2644 return pid->vnn == my_vnn;
2647 /****************************************************************
2648 Check if offset/length fit into bufsize. Should probably be
2649 merged with is_offset_safe, but this would require a rewrite
2650 of lanman.c. Later :-)
2651 ****************************************************************/
2653 bool trans_oob(uint32_t bufsize, uint32_t offset, uint32_t length)
2655 if ((offset + length < offset) || (offset + length < length)) {
2659 if ((offset > bufsize) || (offset + length > bufsize)) {
2666 /****************************************************************
2667 Check if an offset into a buffer is safe.
2668 If this returns True it's safe to indirect into the byte at
2670 ****************************************************************/
2672 bool is_offset_safe(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2674 const char *end_base = buf_base + buf_len;
2675 char *end_ptr = ptr + off;
2677 if (!buf_base || !ptr) {
2681 if (end_base < buf_base || end_ptr < ptr) {
2682 return False; /* wrap. */
2685 if (end_ptr < end_base) {
2691 /****************************************************************
2692 Return a safe pointer into a buffer, or NULL.
2693 ****************************************************************/
2695 char *get_safe_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2697 return is_offset_safe(buf_base, buf_len, ptr, off) ?
2701 /****************************************************************
2702 Return a safe pointer into a string within a buffer, or NULL.
2703 ****************************************************************/
2705 char *get_safe_str_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2707 if (!is_offset_safe(buf_base, buf_len, ptr, off)) {
2710 /* Check if a valid string exists at this offset. */
2711 if (skip_string(buf_base,buf_len, ptr + off) == NULL) {
2717 /****************************************************************
2718 Return an SVAL at a pointer, or failval if beyond the end.
2719 ****************************************************************/
2721 int get_safe_SVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval)
2724 * Note we use off+1 here, not off+2 as SVAL accesses ptr[0] and ptr[1],
2727 if (!is_offset_safe(buf_base, buf_len, ptr, off+1)) {
2730 return SVAL(ptr,off);
2733 /****************************************************************
2734 Return an IVAL at a pointer, or failval if beyond the end.
2735 ****************************************************************/
2737 int get_safe_IVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval)
2740 * Note we use off+3 here, not off+4 as IVAL accesses
2741 * ptr[0] ptr[1] ptr[2] ptr[3] NOT ptr[4].
2743 if (!is_offset_safe(buf_base, buf_len, ptr, off+3)) {
2746 return IVAL(ptr,off);
2749 /****************************************************************
2750 Split DOM\user into DOM and user. Do not mix with winbind variants of that
2751 call (they take care of winbind separator and other winbind specific settings).
2752 ****************************************************************/
2754 void split_domain_user(TALLOC_CTX *mem_ctx,
2755 const char *full_name,
2759 const char *p = NULL;
2761 p = strchr_m(full_name, '\\');
2764 *domain = talloc_strndup(mem_ctx, full_name,
2765 PTR_DIFF(p, full_name));
2766 *user = talloc_strdup(mem_ctx, p+1);
2768 *domain = talloc_strdup(mem_ctx, "");
2769 *user = talloc_strdup(mem_ctx, full_name);
2775 Disable these now we have checked all code paths and ensured
2776 NULL returns on zero request. JRA.
2778 /****************************************************************
2779 talloc wrapper functions that guarentee a null pointer return
2781 ****************************************************************/
2783 #ifndef MAX_TALLOC_SIZE
2784 #define MAX_TALLOC_SIZE 0x10000000
2788 * talloc and zero memory.
2789 * - returns NULL if size is zero.
2792 void *_talloc_zero_zeronull(const void *ctx, size_t size, const char *name)
2800 p = talloc_named_const(ctx, size, name);
2803 memset(p, '\0', size);
2810 * memdup with a talloc.
2811 * - returns NULL if size is zero.
2814 void *_talloc_memdup_zeronull(const void *t, const void *p, size_t size, const char *name)
2822 newp = talloc_named_const(t, size, name);
2824 memcpy(newp, p, size);
2831 * alloc an array, checking for integer overflow in the array size.
2832 * - returns NULL if count or el_size are zero.
2835 void *_talloc_array_zeronull(const void *ctx, size_t el_size, unsigned count, const char *name)
2837 if (count >= MAX_TALLOC_SIZE/el_size) {
2841 if (el_size == 0 || count == 0) {
2845 return talloc_named_const(ctx, el_size * count, name);
2849 * alloc an zero array, checking for integer overflow in the array size
2850 * - returns NULL if count or el_size are zero.
2853 void *_talloc_zero_array_zeronull(const void *ctx, size_t el_size, unsigned count, const char *name)
2855 if (count >= MAX_TALLOC_SIZE/el_size) {
2859 if (el_size == 0 || count == 0) {
2863 return _talloc_zero(ctx, el_size * count, name);
2867 * Talloc wrapper that returns NULL if size == 0.
2869 void *talloc_zeronull(const void *context, size_t size, const char *name)
2874 return talloc_named_const(context, size, name);
2878 /****************************************************************
2879 strip off leading '\\' from a hostname
2880 ****************************************************************/
2882 const char *strip_hostname(const char *s)
2888 if (strlen_m(s) < 3) {
2892 if (s[0] == '\\') s++;
2893 if (s[0] == '\\') s++;
2898 bool tevent_req_poll_ntstatus(struct tevent_req *req,
2899 struct tevent_context *ev,
2902 bool ret = tevent_req_poll(req, ev);
2904 *status = map_nt_error_from_unix(errno);
2909 bool any_nt_status_not_ok(NTSTATUS err1, NTSTATUS err2, NTSTATUS *result)
2911 if (!NT_STATUS_IS_OK(err1)) {
2915 if (!NT_STATUS_IS_OK(err2)) {
2922 int timeval_to_msec(struct timeval t)
2924 return t.tv_sec * 1000 + (t.tv_usec+999) / 1000;