2 Unix SMB/CIFS implementation.
3 Samba utility functions
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Jeremy Allison 2001-2007
6 Copyright (C) Simo Sorce 2001
7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
8 Copyright (C) James Peach 2006
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "system/passwd.h"
26 #include "system/filesys.h"
27 #include "popt_common.h"
29 #include "ctdbd_conn.h"
30 #include "../lib/util/util_pw.h"
33 /* Max allowable allococation - 256mb - 0x10000000 */
34 #define MAX_ALLOC_SIZE (1024*1024*256)
36 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
37 #ifdef WITH_NISPLUS_HOME
38 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
40 * The following lines are needed due to buggy include files
41 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
42 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
43 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
44 * an enum in /usr/include/rpcsvc/nis.h.
51 #if defined(GROUP_OBJ)
55 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
57 #include <rpcsvc/nis.h>
59 #endif /* WITH_NISPLUS_HOME */
60 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
62 static enum protocol_types Protocol = PROTOCOL_COREPLUS;
64 enum protocol_types get_Protocol(void)
69 void set_Protocol(enum protocol_types p)
74 static enum remote_arch_types ra_type = RA_UNKNOWN;
76 /***********************************************************************
77 Definitions for all names.
78 ***********************************************************************/
80 static char *smb_scope;
81 static int smb_num_netbios_names;
82 static char **smb_my_netbios_names;
84 /***********************************************************************
85 Allocate and set scope. Ensure upper case.
86 ***********************************************************************/
88 bool set_global_scope(const char *scope)
91 smb_scope = SMB_STRDUP(scope);
94 strupper_m(smb_scope);
98 /*********************************************************************
99 Ensure scope is never null string.
100 *********************************************************************/
102 const char *global_scope(void)
105 set_global_scope("");
109 static void free_netbios_names_array(void)
113 for (i = 0; i < smb_num_netbios_names; i++)
114 SAFE_FREE(smb_my_netbios_names[i]);
116 SAFE_FREE(smb_my_netbios_names);
117 smb_num_netbios_names = 0;
120 static bool allocate_my_netbios_names_array(size_t number)
122 free_netbios_names_array();
124 smb_num_netbios_names = number + 1;
125 smb_my_netbios_names = SMB_MALLOC_ARRAY( char *, smb_num_netbios_names );
127 if (!smb_my_netbios_names)
130 memset(smb_my_netbios_names, '\0', sizeof(char *) * smb_num_netbios_names);
134 static bool set_my_netbios_names(const char *name, int i)
136 SAFE_FREE(smb_my_netbios_names[i]);
138 smb_my_netbios_names[i] = SMB_STRDUP(name);
139 if (!smb_my_netbios_names[i])
141 strupper_m(smb_my_netbios_names[i]);
145 /***********************************************************************
146 Free memory allocated to global objects
147 ***********************************************************************/
149 void gfree_names(void)
151 gfree_netbios_names();
152 SAFE_FREE( smb_scope );
153 free_netbios_names_array();
154 free_local_machine_name();
157 void gfree_all( void )
167 const char *my_netbios_names(int i)
169 return smb_my_netbios_names[i];
172 bool set_netbios_aliases(const char **str_array)
176 /* Work out the max number of netbios aliases that we have */
177 for( namecount=0; str_array && (str_array[namecount] != NULL); namecount++ )
180 if ( global_myname() && *global_myname())
183 /* Allocate space for the netbios aliases */
184 if (!allocate_my_netbios_names_array(namecount))
187 /* Use the global_myname string first */
189 if ( global_myname() && *global_myname()) {
190 set_my_netbios_names( global_myname(), namecount );
196 for ( i = 0; str_array[i] != NULL; i++) {
198 bool duplicate = False;
200 /* Look for duplicates */
201 for( n=0; n<namecount; n++ ) {
202 if( strequal( str_array[i], my_netbios_names(n) ) ) {
208 if (!set_my_netbios_names(str_array[i], namecount))
217 /****************************************************************************
218 Common name initialization code.
219 ****************************************************************************/
221 bool init_names(void)
225 if (global_myname() == NULL || *global_myname() == '\0') {
226 if (!set_global_myname(myhostname())) {
227 DEBUG( 0, ( "init_names: malloc fail.\n" ) );
232 if (!set_netbios_aliases(lp_netbios_aliases())) {
233 DEBUG( 0, ( "init_names: malloc fail.\n" ) );
237 set_local_machine_name(global_myname(),false);
239 DEBUG( 5, ("Netbios name list:-\n") );
240 for( n=0; my_netbios_names(n); n++ ) {
241 DEBUGADD( 5, ("my_netbios_names[%d]=\"%s\"\n",
242 n, my_netbios_names(n) ) );
248 /**************************************************************************n
249 Code to cope with username/password auth options from the commandline.
250 Used mainly in client tools.
251 ****************************************************************************/
253 struct user_auth_info *user_auth_info_init(TALLOC_CTX *mem_ctx)
255 struct user_auth_info *result;
257 result = TALLOC_ZERO_P(mem_ctx, struct user_auth_info);
258 if (result == NULL) {
262 result->signing_state = Undefined;
266 const char *get_cmdline_auth_info_username(const struct user_auth_info *auth_info)
268 if (!auth_info->username) {
271 return auth_info->username;
274 void set_cmdline_auth_info_username(struct user_auth_info *auth_info,
275 const char *username)
277 TALLOC_FREE(auth_info->username);
278 auth_info->username = talloc_strdup(auth_info, username);
279 if (!auth_info->username) {
284 const char *get_cmdline_auth_info_domain(const struct user_auth_info *auth_info)
286 if (!auth_info->domain) {
289 return auth_info->domain;
292 void set_cmdline_auth_info_domain(struct user_auth_info *auth_info,
295 TALLOC_FREE(auth_info->domain);
296 auth_info->domain = talloc_strdup(auth_info, domain);
297 if (!auth_info->domain) {
302 const char *get_cmdline_auth_info_password(const struct user_auth_info *auth_info)
304 if (!auth_info->password) {
307 return auth_info->password;
310 void set_cmdline_auth_info_password(struct user_auth_info *auth_info,
311 const char *password)
313 TALLOC_FREE(auth_info->password);
314 if (password == NULL) {
317 auth_info->password = talloc_strdup(auth_info, password);
318 if (!auth_info->password) {
321 auth_info->got_pass = true;
324 bool set_cmdline_auth_info_signing_state(struct user_auth_info *auth_info,
327 auth_info->signing_state = -1;
328 if (strequal(arg, "off") || strequal(arg, "no") ||
329 strequal(arg, "false")) {
330 auth_info->signing_state = false;
331 } else if (strequal(arg, "on") || strequal(arg, "yes") ||
332 strequal(arg, "true") || strequal(arg, "auto")) {
333 auth_info->signing_state = true;
334 } else if (strequal(arg, "force") || strequal(arg, "required") ||
335 strequal(arg, "forced")) {
336 auth_info->signing_state = Required;
343 int get_cmdline_auth_info_signing_state(const struct user_auth_info *auth_info)
345 return auth_info->signing_state;
348 void set_cmdline_auth_info_use_ccache(struct user_auth_info *auth_info, bool b)
350 auth_info->use_ccache = b;
353 bool get_cmdline_auth_info_use_ccache(const struct user_auth_info *auth_info)
355 return auth_info->use_ccache;
358 void set_cmdline_auth_info_use_kerberos(struct user_auth_info *auth_info,
361 auth_info->use_kerberos = b;
364 bool get_cmdline_auth_info_use_kerberos(const struct user_auth_info *auth_info)
366 return auth_info->use_kerberos;
369 void set_cmdline_auth_info_fallback_after_kerberos(struct user_auth_info *auth_info,
372 auth_info->fallback_after_kerberos = b;
375 bool get_cmdline_auth_info_fallback_after_kerberos(const struct user_auth_info *auth_info)
377 return auth_info->fallback_after_kerberos;
380 /* This should only be used by lib/popt_common.c JRA */
381 void set_cmdline_auth_info_use_krb5_ticket(struct user_auth_info *auth_info)
383 auth_info->use_kerberos = true;
384 auth_info->got_pass = true;
387 /* This should only be used by lib/popt_common.c JRA */
388 void set_cmdline_auth_info_smb_encrypt(struct user_auth_info *auth_info)
390 auth_info->smb_encrypt = true;
393 void set_cmdline_auth_info_use_machine_account(struct user_auth_info *auth_info)
395 auth_info->use_machine_account = true;
398 bool get_cmdline_auth_info_got_pass(const struct user_auth_info *auth_info)
400 return auth_info->got_pass;
403 bool get_cmdline_auth_info_smb_encrypt(const struct user_auth_info *auth_info)
405 return auth_info->smb_encrypt;
408 bool get_cmdline_auth_info_use_machine_account(const struct user_auth_info *auth_info)
410 return auth_info->use_machine_account;
413 struct user_auth_info *get_cmdline_auth_info_copy(TALLOC_CTX *mem_ctx,
414 const struct user_auth_info *src)
416 struct user_auth_info *result;
418 result = user_auth_info_init(mem_ctx);
419 if (result == NULL) {
425 result->username = talloc_strdup(
426 result, get_cmdline_auth_info_username(src));
427 result->password = talloc_strdup(
428 result, get_cmdline_auth_info_password(src));
429 if ((result->username == NULL) || (result->password == NULL)) {
437 bool set_cmdline_auth_info_machine_account_creds(struct user_auth_info *auth_info)
440 char *account = NULL;
442 if (!get_cmdline_auth_info_use_machine_account(auth_info)) {
446 if (!secrets_init()) {
447 d_printf("ERROR: Unable to open secrets database\n");
451 if (asprintf(&account, "%s$@%s", global_myname(), lp_realm()) < 0) {
455 pass = secrets_fetch_machine_password(lp_workgroup(), NULL, NULL);
457 d_printf("ERROR: Unable to fetch machine password for "
459 account, lp_workgroup());
464 set_cmdline_auth_info_username(auth_info, account);
465 set_cmdline_auth_info_password(auth_info, pass);
473 /****************************************************************************
474 Ensure we have a password if one not given.
475 ****************************************************************************/
477 void set_cmdline_auth_info_getpass(struct user_auth_info *auth_info)
483 if (get_cmdline_auth_info_got_pass(auth_info) ||
484 get_cmdline_auth_info_use_kerberos(auth_info)) {
485 /* Already got one... */
489 frame = talloc_stackframe();
490 label = talloc_asprintf(frame, "Enter %s's password: ",
491 get_cmdline_auth_info_username(auth_info));
492 pass = getpass(label);
494 set_cmdline_auth_info_password(auth_info, pass);
499 /*******************************************************************
500 Check if a file exists - call vfs_file_exist for samba files.
501 ********************************************************************/
503 bool file_exist_stat(const char *fname,SMB_STRUCT_STAT *sbuf,
504 bool fake_dir_create_times)
510 if (sys_stat(fname, sbuf, fake_dir_create_times) != 0)
513 return((S_ISREG(sbuf->st_ex_mode)) || (S_ISFIFO(sbuf->st_ex_mode)));
516 /*******************************************************************
517 Check if a unix domain socket exists - call vfs_file_exist for samba files.
518 ********************************************************************/
520 bool socket_exist(const char *fname)
523 if (sys_stat(fname, &st, false) != 0)
526 return S_ISSOCK(st.st_ex_mode);
529 /*******************************************************************
530 Returns the size in bytes of the named given the stat struct.
531 ********************************************************************/
533 uint64_t get_file_size_stat(const SMB_STRUCT_STAT *sbuf)
535 return sbuf->st_ex_size;
538 /*******************************************************************
539 Returns the size in bytes of the named file.
540 ********************************************************************/
542 SMB_OFF_T get_file_size(char *file_name)
546 if (sys_stat(file_name, &buf, false) != 0)
547 return (SMB_OFF_T)-1;
548 return get_file_size_stat(&buf);
551 /*******************************************************************
552 Return a string representing an attribute for a file.
553 ********************************************************************/
555 char *attrib_string(uint16 mode)
561 if (mode & aVOLID) fstrcat(attrstr,"V");
562 if (mode & aDIR) fstrcat(attrstr,"D");
563 if (mode & aARCH) fstrcat(attrstr,"A");
564 if (mode & aHIDDEN) fstrcat(attrstr,"H");
565 if (mode & aSYSTEM) fstrcat(attrstr,"S");
566 if (mode & aRONLY) fstrcat(attrstr,"R");
568 return talloc_strdup(talloc_tos(), attrstr);
571 /*******************************************************************
572 Show a smb message structure.
573 ********************************************************************/
575 void show_msg(char *buf)
583 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
585 (int)CVAL(buf,smb_com),
586 (int)CVAL(buf,smb_rcls),
587 (int)CVAL(buf,smb_reh),
588 (int)SVAL(buf,smb_err),
589 (int)CVAL(buf,smb_flg),
590 (int)SVAL(buf,smb_flg2)));
591 DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
592 (int)SVAL(buf,smb_tid),
593 (int)SVAL(buf,smb_pid),
594 (int)SVAL(buf,smb_uid),
595 (int)SVAL(buf,smb_mid)));
596 DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct)));
598 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
599 DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i,
600 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
602 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
604 DEBUGADD(5,("smb_bcc=%d\n",bcc));
612 dump_data(10, (uint8 *)smb_buf(buf), bcc);
615 /*******************************************************************
616 Set the length and marker of an encrypted smb packet.
617 ********************************************************************/
619 void smb_set_enclen(char *buf,int len,uint16 enc_ctx_num)
621 _smb_setlen(buf,len);
625 SSVAL(buf,6,enc_ctx_num);
628 /*******************************************************************
629 Set the length and marker of an smb packet.
630 ********************************************************************/
632 void smb_setlen(char *buf,int len)
634 _smb_setlen(buf,len);
642 /*******************************************************************
643 Setup only the byte count for a smb message.
644 ********************************************************************/
646 int set_message_bcc(char *buf,int num_bytes)
648 int num_words = CVAL(buf,smb_wct);
649 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
650 _smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
651 return (smb_size + num_words*2 + num_bytes);
654 /*******************************************************************
655 Add a data blob to the end of a smb_buf, adjusting bcc and smb_len.
656 Return the bytes added
657 ********************************************************************/
659 ssize_t message_push_blob(uint8 **outbuf, DATA_BLOB blob)
661 size_t newlen = smb_len(*outbuf) + 4 + blob.length;
664 if (!(tmp = TALLOC_REALLOC_ARRAY(NULL, *outbuf, uint8, newlen))) {
665 DEBUG(0, ("talloc failed\n"));
670 memcpy(tmp + smb_len(tmp) + 4, blob.data, blob.length);
671 set_message_bcc((char *)tmp, smb_buflen(tmp) + blob.length);
675 /*******************************************************************
676 Reduce a file name, removing .. elements.
677 ********************************************************************/
679 static char *dos_clean_name(TALLOC_CTX *ctx, const char *s)
684 DEBUG(3,("dos_clean_name [%s]\n",s));
686 /* remove any double slashes */
687 str = talloc_all_string_sub(ctx, s, "\\\\", "\\");
692 /* Remove leading .\\ characters */
693 if(strncmp(str, ".\\", 2) == 0) {
694 trim_string(str, ".\\", NULL);
696 str = talloc_strdup(ctx, ".\\");
703 while ((p = strstr_m(str,"\\..\\")) != NULL) {
709 if ((p=strrchr_m(str,'\\')) != NULL) {
714 str = talloc_asprintf(ctx,
723 trim_string(str,NULL,"\\..");
724 return talloc_all_string_sub(ctx, str, "\\.\\", "\\");
727 /*******************************************************************
728 Reduce a file name, removing .. elements.
729 ********************************************************************/
731 char *unix_clean_name(TALLOC_CTX *ctx, const char *s)
736 DEBUG(3,("unix_clean_name [%s]\n",s));
738 /* remove any double slashes */
739 str = talloc_all_string_sub(ctx, s, "//","/");
744 /* Remove leading ./ characters */
745 if(strncmp(str, "./", 2) == 0) {
746 trim_string(str, "./", NULL);
748 str = talloc_strdup(ctx, "./");
755 while ((p = strstr_m(str,"/../")) != NULL) {
761 if ((p=strrchr_m(str,'/')) != NULL) {
766 str = talloc_asprintf(ctx,
775 trim_string(str,NULL,"/..");
776 return talloc_all_string_sub(ctx, str, "/./", "/");
779 char *clean_name(TALLOC_CTX *ctx, const char *s)
781 char *str = dos_clean_name(ctx, s);
785 return unix_clean_name(ctx, str);
788 /*******************************************************************
789 Write data into an fd at a given offset. Ignore seek errors.
790 ********************************************************************/
792 ssize_t write_data_at_offset(int fd, const char *buffer, size_t N, SMB_OFF_T pos)
797 if (pos == (SMB_OFF_T)-1) {
798 return write_data(fd, buffer, N);
800 #if defined(HAVE_PWRITE) || defined(HAVE_PRWITE64)
802 ret = sys_pwrite(fd,buffer + total,N - total, pos);
803 if (ret == -1 && errno == ESPIPE) {
804 return write_data(fd, buffer + total,N - total);
807 DEBUG(0,("write_data_at_offset: write failure. Error = %s\n", strerror(errno) ));
816 return (ssize_t)total;
818 /* Use lseek and write_data. */
819 if (sys_lseek(fd, pos, SEEK_SET) == -1) {
820 if (errno != ESPIPE) {
824 return write_data(fd, buffer, N);
829 NTSTATUS reinit_after_fork(struct messaging_context *msg_ctx,
830 struct event_context *ev_ctx,
832 bool parent_longlived)
834 NTSTATUS status = NT_STATUS_OK;
836 /* Reset the state of the random
837 * number generation system, so
838 * children do not get the same random
839 * numbers as each other */
840 set_need_random_reseed();
842 /* tdb needs special fork handling */
843 if (tdb_reopen_all(parent_longlived ? 1 : 0) == -1) {
844 DEBUG(0,("tdb_reopen_all failed.\n"));
845 status = NT_STATUS_OPEN_FAILED;
849 if (ev_ctx && tevent_re_initialise(ev_ctx) != 0) {
850 smb_panic(__location__ ": Failed to re-initialise event context");
855 * For clustering, we need to re-init our ctdbd connection after the
858 status = messaging_reinit(msg_ctx, id);
859 if (!NT_STATUS_IS_OK(status)) {
860 DEBUG(0,("messaging_reinit() failed: %s\n",
868 #if defined(PARANOID_MALLOC_CHECKER)
870 /****************************************************************************
871 Internal malloc wrapper. Externally visible.
872 ****************************************************************************/
874 void *malloc_(size_t size)
881 #define malloc(s) __ERROR_DONT_USE_MALLOC_DIRECTLY
884 /****************************************************************************
885 Internal calloc wrapper. Not externally visible.
886 ****************************************************************************/
888 static void *calloc_(size_t count, size_t size)
890 if (size == 0 || count == 0) {
894 return calloc(count, size);
895 #define calloc(n,s) __ERROR_DONT_USE_CALLOC_DIRECTLY
898 /****************************************************************************
899 Internal realloc wrapper. Not externally visible.
900 ****************************************************************************/
902 static void *realloc_(void *ptr, size_t size)
905 return realloc(ptr, size);
906 #define realloc(p,s) __ERROR_DONT_USE_RELLOC_DIRECTLY
909 #endif /* PARANOID_MALLOC_CHECKER */
911 /****************************************************************************
913 ****************************************************************************/
915 void *memalign_array(size_t el_size, size_t align, unsigned int count)
917 if (count >= MAX_ALLOC_SIZE/el_size) {
921 return sys_memalign(align, el_size*count);
924 /****************************************************************************
926 ****************************************************************************/
928 void *calloc_array(size_t size, size_t nmemb)
930 if (nmemb >= MAX_ALLOC_SIZE/size) {
933 if (size == 0 || nmemb == 0) {
936 #if defined(PARANOID_MALLOC_CHECKER)
937 return calloc_(nmemb, size);
939 return calloc(nmemb, size);
943 /****************************************************************************
944 Expand a pointer to be a particular size.
945 Note that this version of Realloc has an extra parameter that decides
946 whether to free the passed in storage on allocation failure or if the
949 This is designed for use in the typical idiom of :
951 p = SMB_REALLOC(p, size)
956 and not to have to keep track of the old 'p' contents to free later, nor
957 to worry if the size parameter was zero. In the case where NULL is returned
958 we guarentee that p has been freed.
960 If free later semantics are desired, then pass 'free_old_on_error' as False which
961 guarentees that the old contents are not freed on error, even if size == 0. To use
964 tmp = SMB_REALLOC_KEEP_OLD_ON_ERROR(p, size);
972 Changes were instigated by Coverity error checking. JRA.
973 ****************************************************************************/
975 void *Realloc(void *p, size_t size, bool free_old_on_error)
980 if (free_old_on_error) {
983 DEBUG(2,("Realloc asked for 0 bytes\n"));
987 #if defined(PARANOID_MALLOC_CHECKER)
989 ret = (void *)malloc_(size);
991 ret = (void *)realloc_(p,size);
995 ret = (void *)malloc(size);
997 ret = (void *)realloc(p,size);
1002 if (free_old_on_error && p) {
1005 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
1011 /****************************************************************************
1012 (Hopefully) efficient array append.
1013 ****************************************************************************/
1015 void add_to_large_array(TALLOC_CTX *mem_ctx, size_t element_size,
1016 void *element, void *_array, uint32 *num_elements,
1017 ssize_t *array_size)
1019 void **array = (void **)_array;
1021 if (*array_size < 0) {
1025 if (*array == NULL) {
1026 if (*array_size == 0) {
1030 if (*array_size >= MAX_ALLOC_SIZE/element_size) {
1034 *array = TALLOC(mem_ctx, element_size * (*array_size));
1035 if (*array == NULL) {
1040 if (*num_elements == *array_size) {
1043 if (*array_size >= MAX_ALLOC_SIZE/element_size) {
1047 *array = TALLOC_REALLOC(mem_ctx, *array,
1048 element_size * (*array_size));
1050 if (*array == NULL) {
1055 memcpy((char *)(*array) + element_size*(*num_elements),
1056 element, element_size);
1066 /****************************************************************************
1067 Get my own domain name, or "" if we have none.
1068 ****************************************************************************/
1070 char *get_mydnsdomname(TALLOC_CTX *ctx)
1072 const char *domname;
1075 domname = get_mydnsfullname();
1080 p = strchr_m(domname, '.');
1083 return talloc_strdup(ctx, p);
1085 return talloc_strdup(ctx, "");
1089 /****************************************************************************
1090 Interpret a protocol description string, with a default.
1091 ****************************************************************************/
1093 int interpret_protocol(const char *str,int def)
1095 if (strequal(str,"NT1"))
1096 return(PROTOCOL_NT1);
1097 if (strequal(str,"LANMAN2"))
1098 return(PROTOCOL_LANMAN2);
1099 if (strequal(str,"LANMAN1"))
1100 return(PROTOCOL_LANMAN1);
1101 if (strequal(str,"CORE"))
1102 return(PROTOCOL_CORE);
1103 if (strequal(str,"COREPLUS"))
1104 return(PROTOCOL_COREPLUS);
1105 if (strequal(str,"CORE+"))
1106 return(PROTOCOL_COREPLUS);
1108 DEBUG(0,("Unrecognised protocol level %s\n",str));
1114 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
1115 /******************************************************************
1116 Remove any mount options such as -rsize=2048,wsize=2048 etc.
1117 Based on a fix from <Thomas.Hepper@icem.de>.
1118 Returns a malloc'ed string.
1119 *******************************************************************/
1121 static char *strip_mount_options(TALLOC_CTX *ctx, const char *str)
1124 const char *p = str;
1125 while(*p && !isspace(*p))
1127 while(*p && isspace(*p))
1130 return talloc_strdup(ctx, p);
1136 /*******************************************************************
1137 Patch from jkf@soton.ac.uk
1138 Split Luke's automount_server into YP lookup and string splitter
1139 so can easily implement automount_path().
1140 Returns a malloc'ed string.
1141 *******************************************************************/
1143 #ifdef WITH_NISPLUS_HOME
1144 char *automount_lookup(TALLOC_CTX *ctx, const char *user_name)
1148 char *nis_map = (char *)lp_nis_home_map_name();
1150 char buffer[NIS_MAXATTRVAL + 1];
1155 snprintf(buffer, sizeof(buffer), "[key=%s],%s", user_name, nis_map);
1156 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
1158 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) {
1159 if (result->status != NIS_SUCCESS) {
1160 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
1162 object = result->objects.objects_val;
1163 if (object->zo_data.zo_type == ENTRY_OBJ) {
1164 entry = &object->zo_data.objdata_u.en_data;
1165 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
1166 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
1168 value = talloc_strdup(ctx,
1169 entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
1171 nis_freeresult(result);
1174 value = talloc_string_sub(ctx,
1181 nis_freeresult(result);
1184 value = strip_mount_options(ctx, value);
1185 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n",
1190 #else /* WITH_NISPLUS_HOME */
1192 char *automount_lookup(TALLOC_CTX *ctx, const char *user_name)
1196 int nis_error; /* returned by yp all functions */
1197 char *nis_result; /* yp_match inits this */
1198 int nis_result_len; /* and set this */
1199 char *nis_domain; /* yp_get_default_domain inits this */
1200 char *nis_map = (char *)lp_nis_home_map_name();
1202 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
1203 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
1207 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
1209 if ((nis_error = yp_match(nis_domain, nis_map, user_name,
1210 strlen(user_name), &nis_result,
1211 &nis_result_len)) == 0) {
1212 if (nis_result_len > 0 && nis_result[nis_result_len] == '\n') {
1213 nis_result[nis_result_len] = '\0';
1215 value = talloc_strdup(ctx, nis_result);
1219 value = strip_mount_options(ctx, value);
1220 } else if(nis_error == YPERR_KEY) {
1221 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
1222 user_name, nis_map));
1223 DEBUG(3, ("using defaults for server and home directory\n"));
1225 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
1226 yperr_string(nis_error), user_name, nis_map));
1230 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, value));
1234 #endif /* WITH_NISPLUS_HOME */
1237 /****************************************************************************
1238 Check if a process exists. Does this work on all unixes?
1239 ****************************************************************************/
1241 bool process_exists(const struct server_id pid)
1243 if (procid_is_me(&pid)) {
1247 if (procid_is_local(&pid)) {
1248 return (kill(pid.pid,0) == 0 || errno != ESRCH);
1251 #ifdef CLUSTER_SUPPORT
1252 return ctdbd_process_exists(messaging_ctdbd_connection(),
1259 /*******************************************************************
1260 Convert a uid into a user name.
1261 ********************************************************************/
1263 const char *uidtoname(uid_t uid)
1265 TALLOC_CTX *ctx = talloc_tos();
1267 struct passwd *pass = NULL;
1269 pass = getpwuid_alloc(ctx,uid);
1271 name = talloc_strdup(ctx,pass->pw_name);
1274 name = talloc_asprintf(ctx,
1281 /*******************************************************************
1282 Convert a gid into a group name.
1283 ********************************************************************/
1285 char *gidtoname(gid_t gid)
1289 grp = getgrgid(gid);
1291 return talloc_strdup(talloc_tos(), grp->gr_name);
1294 return talloc_asprintf(talloc_tos(),
1300 /*******************************************************************
1301 Convert a user name into a uid.
1302 ********************************************************************/
1304 uid_t nametouid(const char *name)
1306 struct passwd *pass;
1310 pass = Get_Pwnam_alloc(talloc_tos(), name);
1317 u = (uid_t)strtol(name, &p, 0);
1318 if ((p != name) && (*p == '\0'))
1324 /*******************************************************************
1325 Convert a name to a gid_t if possible. Return -1 if not a group.
1326 ********************************************************************/
1328 gid_t nametogid(const char *name)
1334 g = (gid_t)strtol(name, &p, 0);
1335 if ((p != name) && (*p == '\0'))
1338 grp = sys_getgrnam(name);
1340 return(grp->gr_gid);
1344 /*******************************************************************
1345 Something really nasty happened - panic !
1346 ********************************************************************/
1348 void smb_panic_s3(const char *why)
1353 DEBUG(0,("PANIC (pid %llu): %s\n",
1354 (unsigned long long)sys_getpid(), why));
1357 cmd = lp_panic_action();
1359 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
1360 result = system(cmd);
1363 DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
1366 DEBUG(0, ("smb_panic(): action returned status %d\n",
1367 WEXITSTATUS(result)));
1373 /*******************************************************************
1374 Print a backtrace of the stack to the debug log. This function
1375 DELIBERATELY LEAKS MEMORY. The expectation is that you should
1376 exit shortly after calling it.
1377 ********************************************************************/
1379 #ifdef HAVE_LIBUNWIND_H
1380 #include <libunwind.h>
1383 #ifdef HAVE_EXECINFO_H
1384 #include <execinfo.h>
1387 #ifdef HAVE_LIBEXC_H
1391 void log_stack_trace(void)
1393 #ifdef HAVE_LIBUNWIND
1394 /* Try to use libunwind before any other technique since on ia64
1395 * libunwind correctly walks the stack in more circumstances than
1398 unw_cursor_t cursor;
1403 unw_word_t ip, sp, off;
1405 procname[sizeof(procname) - 1] = '\0';
1407 if (unw_getcontext(&uc) != 0) {
1408 goto libunwind_failed;
1411 if (unw_init_local(&cursor, &uc) != 0) {
1412 goto libunwind_failed;
1415 DEBUG(0, ("BACKTRACE:\n"));
1419 unw_get_reg(&cursor, UNW_REG_IP, &ip);
1420 unw_get_reg(&cursor, UNW_REG_SP, &sp);
1422 switch (unw_get_proc_name(&cursor,
1423 procname, sizeof(procname) - 1, &off) ) {
1427 /* Name truncated. */
1428 DEBUGADD(0, (" #%u %s + %#llx [ip=%#llx] [sp=%#llx]\n",
1429 i, procname, (long long)off,
1430 (long long)ip, (long long) sp));
1433 /* case -UNW_ENOINFO: */
1434 /* case -UNW_EUNSPEC: */
1435 /* No symbol name found. */
1436 DEBUGADD(0, (" #%u %s [ip=%#llx] [sp=%#llx]\n",
1437 i, "<unknown symbol>",
1438 (long long)ip, (long long) sp));
1441 } while (unw_step(&cursor) > 0);
1446 DEBUG(0, ("unable to produce a stack trace with libunwind\n"));
1448 #elif HAVE_BACKTRACE_SYMBOLS
1449 void *backtrace_stack[BACKTRACE_STACK_SIZE];
1450 size_t backtrace_size;
1451 char **backtrace_strings;
1453 /* get the backtrace (stack frames) */
1454 backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE);
1455 backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size);
1457 DEBUG(0, ("BACKTRACE: %lu stack frames:\n",
1458 (unsigned long)backtrace_size));
1460 if (backtrace_strings) {
1463 for (i = 0; i < backtrace_size; i++)
1464 DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i]));
1466 /* Leak the backtrace_strings, rather than risk what free() might do */
1471 /* The IRIX libexc library provides an API for unwinding the stack. See
1472 * libexc(3) for details. Apparantly trace_back_stack leaks memory, but
1473 * since we are about to abort anyway, it hardly matters.
1476 #define NAMESIZE 32 /* Arbitrary */
1478 __uint64_t addrs[BACKTRACE_STACK_SIZE];
1479 char * names[BACKTRACE_STACK_SIZE];
1480 char namebuf[BACKTRACE_STACK_SIZE * NAMESIZE];
1487 ZERO_ARRAY(namebuf);
1489 /* We need to be root so we can open our /proc entry to walk
1490 * our stack. It also helps when we want to dump core.
1494 for (i = 0; i < BACKTRACE_STACK_SIZE; i++) {
1495 names[i] = namebuf + (i * NAMESIZE);
1498 levels = trace_back_stack(0, addrs, names,
1499 BACKTRACE_STACK_SIZE, NAMESIZE - 1);
1501 DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels));
1502 for (i = 0; i < levels; i++) {
1503 DEBUGADD(0, (" #%d 0x%llx %s\n", i, addrs[i], names[i]));
1508 DEBUG(0, ("unable to produce a stack trace on this platform\n"));
1512 /*******************************************************************
1513 A readdir wrapper which just returns the file name.
1514 ********************************************************************/
1516 const char *readdirname(SMB_STRUCT_DIR *p)
1518 SMB_STRUCT_DIRENT *ptr;
1524 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1528 dname = ptr->d_name;
1535 #ifdef HAVE_BROKEN_READDIR_NAME
1536 /* using /usr/ucb/cc is BAD */
1540 return talloc_strdup(talloc_tos(), dname);
1543 /*******************************************************************
1544 Utility function used to decide if the last component
1545 of a path matches a (possibly wildcarded) entry in a namelist.
1546 ********************************************************************/
1548 bool is_in_path(const char *name, name_compare_entry *namelist, bool case_sensitive)
1550 const char *last_component;
1552 /* if we have no list it's obviously not in the path */
1553 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) {
1557 DEBUG(8, ("is_in_path: %s\n", name));
1559 /* Get the last component of the unix name. */
1560 last_component = strrchr_m(name, '/');
1561 if (!last_component) {
1562 last_component = name;
1564 last_component++; /* Go past '/' */
1567 for(; namelist->name != NULL; namelist++) {
1568 if(namelist->is_wild) {
1569 if (mask_match(last_component, namelist->name, case_sensitive)) {
1570 DEBUG(8,("is_in_path: mask match succeeded\n"));
1574 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1575 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0))) {
1576 DEBUG(8,("is_in_path: match succeeded\n"));
1581 DEBUG(8,("is_in_path: match not found\n"));
1585 /*******************************************************************
1586 Strip a '/' separated list into an array of
1587 name_compare_enties structures suitable for
1588 passing to is_in_path(). We do this for
1589 speed so we can pre-parse all the names in the list
1590 and don't do it for each call to is_in_path().
1591 namelist is modified here and is assumed to be
1592 a copy owned by the caller.
1593 We also check if the entry contains a wildcard to
1594 remove a potentially expensive call to mask_match
1596 ********************************************************************/
1598 void set_namearray(name_compare_entry **ppname_array, const char *namelist)
1601 char *nameptr = (char *)namelist;
1602 int num_entries = 0;
1605 (*ppname_array) = NULL;
1607 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1610 /* We need to make two passes over the string. The
1611 first to count the number of elements, the second
1616 if ( *nameptr == '/' ) {
1617 /* cope with multiple (useless) /s) */
1621 /* anything left? */
1622 if ( *nameptr == '\0' )
1625 /* find the next '/' or consume remaining */
1626 name_end = strchr_m(nameptr, '/');
1627 if (name_end == NULL)
1628 name_end = (char *)nameptr + strlen(nameptr);
1630 /* next segment please */
1631 nameptr = name_end + 1;
1635 if(num_entries == 0)
1638 if(( (*ppname_array) = SMB_MALLOC_ARRAY(name_compare_entry, num_entries + 1)) == NULL) {
1639 DEBUG(0,("set_namearray: malloc fail\n"));
1643 /* Now copy out the names */
1644 nameptr = (char *)namelist;
1647 if ( *nameptr == '/' ) {
1648 /* cope with multiple (useless) /s) */
1652 /* anything left? */
1653 if ( *nameptr == '\0' )
1656 /* find the next '/' or consume remaining */
1657 name_end = strchr_m(nameptr, '/');
1661 name_end = nameptr + strlen(nameptr);
1663 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1664 if(((*ppname_array)[i].name = SMB_STRDUP(nameptr)) == NULL) {
1665 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1669 /* next segment please */
1670 nameptr = name_end + 1;
1674 (*ppname_array)[i].name = NULL;
1679 /****************************************************************************
1680 Routine to free a namearray.
1681 ****************************************************************************/
1683 void free_namearray(name_compare_entry *name_array)
1687 if(name_array == NULL)
1690 for(i=0; name_array[i].name!=NULL; i++)
1691 SAFE_FREE(name_array[i].name);
1692 SAFE_FREE(name_array);
1696 #define DBGC_CLASS DBGC_LOCKING
1698 /****************************************************************************
1699 Simple routine to query existing file locks. Cruft in NFS and 64->32 bit mapping
1700 is dealt with in posix.c
1701 Returns True if we have information regarding this lock region (and returns
1702 F_UNLCK in *ptype if the region is unlocked). False if the call failed.
1703 ****************************************************************************/
1705 bool fcntl_getlock(int fd, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid)
1707 SMB_STRUCT_FLOCK lock;
1710 DEBUG(8,("fcntl_getlock fd=%d offset=%.0f count=%.0f type=%d\n",
1711 fd,(double)*poffset,(double)*pcount,*ptype));
1713 lock.l_type = *ptype;
1714 lock.l_whence = SEEK_SET;
1715 lock.l_start = *poffset;
1716 lock.l_len = *pcount;
1719 ret = sys_fcntl_ptr(fd,SMB_F_GETLK,&lock);
1723 DEBUG(3,("fcntl_getlock: lock request failed at offset %.0f count %.0f type %d (%s)\n",
1724 (double)*poffset,(double)*pcount,*ptype,strerror(errno)));
1729 *ptype = lock.l_type;
1730 *poffset = lock.l_start;
1731 *pcount = lock.l_len;
1734 DEBUG(3,("fcntl_getlock: fd %d is returned info %d pid %u\n",
1735 fd, (int)lock.l_type, (unsigned int)lock.l_pid));
1740 #define DBGC_CLASS DBGC_ALL
1742 /*******************************************************************
1743 Is the name specified one of my netbios names.
1744 Returns true if it is equal, false otherwise.
1745 ********************************************************************/
1747 bool is_myname(const char *s)
1752 for (n=0; my_netbios_names(n); n++) {
1753 if (strequal(my_netbios_names(n), s)) {
1758 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1762 /*******************************************************************
1763 Is the name specified our workgroup/domain.
1764 Returns true if it is equal, false otherwise.
1765 ********************************************************************/
1767 bool is_myworkgroup(const char *s)
1771 if (strequal(s, lp_workgroup())) {
1775 DEBUG(8, ("is_myworkgroup(\"%s\") returns %d\n", s, ret));
1779 /*******************************************************************
1780 we distinguish between 2K and XP by the "Native Lan Manager" string
1781 WinXP => "Windows 2002 5.1"
1782 WinXP 64bit => "Windows XP 5.2"
1783 Win2k => "Windows 2000 5.0"
1784 NT4 => "Windows NT 4.0"
1785 Win9x => "Windows 4.0"
1786 Windows 2003 doesn't set the native lan manager string but
1787 they do set the domain to "Windows 2003 5.2" (probably a bug).
1788 ********************************************************************/
1790 void ra_lanman_string( const char *native_lanman )
1792 if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 )
1793 set_remote_arch( RA_WINXP );
1794 else if ( strcmp( native_lanman, "Windows XP 5.2" ) == 0 )
1795 set_remote_arch( RA_WINXP64 );
1796 else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 )
1797 set_remote_arch( RA_WIN2K3 );
1800 static const char *remote_arch_str;
1802 const char *get_remote_arch_str(void)
1804 if (!remote_arch_str) {
1807 return remote_arch_str;
1810 /*******************************************************************
1811 Set the horrid remote_arch string based on an enum.
1812 ********************************************************************/
1814 void set_remote_arch(enum remote_arch_types type)
1819 remote_arch_str = "WfWg";
1822 remote_arch_str = "OS2";
1825 remote_arch_str = "Win95";
1828 remote_arch_str = "WinNT";
1831 remote_arch_str = "Win2K";
1834 remote_arch_str = "WinXP";
1837 remote_arch_str = "WinXP64";
1840 remote_arch_str = "Win2K3";
1843 remote_arch_str = "Vista";
1846 remote_arch_str = "Samba";
1849 remote_arch_str = "CIFSFS";
1852 remote_arch_str = "OSX";
1855 ra_type = RA_UNKNOWN;
1856 remote_arch_str = "UNKNOWN";
1860 DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n",
1864 /*******************************************************************
1865 Get the remote_arch type.
1866 ********************************************************************/
1868 enum remote_arch_types get_remote_arch(void)
1873 const char *tab_depth(int level, int depth)
1875 if( CHECK_DEBUGLVL(level) ) {
1876 dbgtext("%*s", depth*4, "");
1881 /*****************************************************************************
1882 Provide a checksum on a string
1884 Input: s - the null-terminated character string for which the checksum
1887 Output: The checksum value calculated for s.
1888 *****************************************************************************/
1890 int str_checksum(const char *s)
1892 TDB_DATA key = string_tdb_data(s);
1893 return tdb_jenkins_hash(&key);
1896 /*****************************************************************
1897 Zero a memory area then free it. Used to catch bugs faster.
1898 *****************************************************************/
1900 void zero_free(void *p, size_t size)
1906 /*****************************************************************
1907 Set our open file limit to a requested max and return the limit.
1908 *****************************************************************/
1910 int set_maxfiles(int requested_max)
1912 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1914 int saved_current_limit;
1916 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1917 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1920 return requested_max;
1924 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1925 * account for the extra fd we need
1926 * as well as the log files and standard
1927 * handles etc. Save the limit we want to set in case
1928 * we are running on an OS that doesn't support this limit (AIX)
1929 * which always returns RLIM_INFINITY for rlp.rlim_max.
1932 /* Try raising the hard (max) limit to the requested amount. */
1934 #if defined(RLIM_INFINITY)
1935 if (rlp.rlim_max != RLIM_INFINITY) {
1936 int orig_max = rlp.rlim_max;
1938 if ( rlp.rlim_max < requested_max )
1939 rlp.rlim_max = requested_max;
1941 /* This failing is not an error - many systems (Linux) don't
1942 support our default request of 10,000 open files. JRA. */
1944 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1945 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1946 (int)rlp.rlim_max, strerror(errno) ));
1948 /* Set failed - restore original value from get. */
1949 rlp.rlim_max = orig_max;
1954 /* Now try setting the soft (current) limit. */
1956 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1958 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1959 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1960 (int)rlp.rlim_cur, strerror(errno) ));
1962 return saved_current_limit;
1965 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1966 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1969 return saved_current_limit;
1972 #if defined(RLIM_INFINITY)
1973 if(rlp.rlim_cur == RLIM_INFINITY)
1974 return saved_current_limit;
1977 if((int)rlp.rlim_cur > saved_current_limit)
1978 return saved_current_limit;
1980 return rlp.rlim_cur;
1981 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1983 * No way to know - just guess...
1985 return requested_max;
1989 /*****************************************************************
1990 malloc that aborts with smb_panic on fail or zero size.
1991 *****************************************************************/
1993 void *smb_xmalloc_array(size_t size, unsigned int count)
1997 smb_panic("smb_xmalloc_array: called with zero size");
1999 if (count >= MAX_ALLOC_SIZE/size) {
2000 smb_panic("smb_xmalloc_array: alloc size too large");
2002 if ((p = SMB_MALLOC(size*count)) == NULL) {
2003 DEBUG(0, ("smb_xmalloc_array failed to allocate %lu * %lu bytes\n",
2004 (unsigned long)size, (unsigned long)count));
2005 smb_panic("smb_xmalloc_array: malloc failed");
2011 vasprintf that aborts on malloc fail
2014 int smb_xvasprintf(char **ptr, const char *format, va_list ap)
2021 n = vasprintf(ptr, format, ap2);
2023 if (n == -1 || ! *ptr) {
2024 smb_panic("smb_xvasprintf: out of memory");
2029 /*****************************************************************
2030 Get local hostname and cache result.
2031 *****************************************************************/
2033 char *myhostname(void)
2037 ret = get_myname(NULL);
2043 * @brief Returns an absolute path to a file concatenating the provided
2044 * @a rootpath and @a basename
2046 * @param name Filename, relative to @a rootpath
2048 * @retval Pointer to a string containing the full path.
2051 static char *xx_path(const char *name, const char *rootpath)
2055 fname = talloc_strdup(talloc_tos(), rootpath);
2059 trim_string(fname,"","/");
2061 if (!directory_exist(fname)) {
2062 if (!mkdir(fname,0755))
2063 DEBUG(1, ("Unable to create directory %s for file %s. "
2064 "Error was %s\n", fname, name, strerror(errno)));
2067 return talloc_asprintf(talloc_tos(),
2074 * @brief Returns an absolute path to a file in the Samba lock directory.
2076 * @param name File to find, relative to LOCKDIR.
2078 * @retval Pointer to a talloc'ed string containing the full path.
2081 char *lock_path(const char *name)
2083 return xx_path(name, lp_lockdir());
2087 * @brief Returns an absolute path to a file in the Samba pid directory.
2089 * @param name File to find, relative to PIDDIR.
2091 * @retval Pointer to a talloc'ed string containing the full path.
2094 char *pid_path(const char *name)
2096 return xx_path(name, lp_piddir());
2100 * @brief Returns an absolute path to a file in the Samba lib directory.
2102 * @param name File to find, relative to LIBDIR.
2104 * @retval Pointer to a string containing the full path.
2107 char *lib_path(const char *name)
2109 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_LIBDIR(), name);
2113 * @brief Returns an absolute path to a file in the Samba modules directory.
2115 * @param name File to find, relative to MODULESDIR.
2117 * @retval Pointer to a string containing the full path.
2120 char *modules_path(const char *name)
2122 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_MODULESDIR(), name);
2126 * @brief Returns an absolute path to a file in the Samba data directory.
2128 * @param name File to find, relative to CODEPAGEDIR.
2130 * @retval Pointer to a talloc'ed string containing the full path.
2133 char *data_path(const char *name)
2135 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_CODEPAGEDIR(), name);
2139 * @brief Returns an absolute path to a file in the Samba state directory.
2141 * @param name File to find, relative to STATEDIR.
2143 * @retval Pointer to a talloc'ed string containing the full path.
2146 char *state_path(const char *name)
2148 return xx_path(name, lp_statedir());
2152 * @brief Returns an absolute path to a file in the Samba cache directory.
2154 * @param name File to find, relative to CACHEDIR.
2156 * @retval Pointer to a talloc'ed string containing the full path.
2159 char *cache_path(const char *name)
2161 return xx_path(name, lp_cachedir());
2165 * @brief Returns the platform specific shared library extension.
2167 * @retval Pointer to a const char * containing the extension.
2170 const char *shlib_ext(void)
2172 return get_dyn_SHLIBEXT();
2175 /*******************************************************************
2176 Given a filename - get its directory name
2177 ********************************************************************/
2179 bool parent_dirname(TALLOC_CTX *mem_ctx, const char *dir, char **parent,
2185 p = strrchr_m(dir, '/'); /* Find final '/', if any */
2188 if (!(*parent = talloc_strdup(mem_ctx, "."))) {
2199 if (!(*parent = (char *)TALLOC_MEMDUP(mem_ctx, dir, len+1))) {
2202 (*parent)[len] = '\0';
2210 /*******************************************************************
2211 Determine if a pattern contains any Microsoft wildcard characters.
2212 *******************************************************************/
2214 bool ms_has_wild(const char *s)
2218 if (lp_posix_pathnames()) {
2219 /* With posix pathnames no characters are wild. */
2223 while ((c = *s++)) {
2236 bool ms_has_wild_w(const smb_ucs2_t *s)
2239 if (!s) return False;
2240 while ((c = *s++)) {
2242 case UCS2_CHAR('*'):
2243 case UCS2_CHAR('?'):
2244 case UCS2_CHAR('<'):
2245 case UCS2_CHAR('>'):
2246 case UCS2_CHAR('"'):
2253 /*******************************************************************
2254 A wrapper that handles case sensitivity and the special handling
2256 *******************************************************************/
2258 bool mask_match(const char *string, const char *pattern, bool is_case_sensitive)
2260 if (ISDOTDOT(string))
2265 return ms_fnmatch(pattern, string, Protocol <= PROTOCOL_LANMAN2, is_case_sensitive) == 0;
2268 /*******************************************************************
2269 A wrapper that handles case sensitivity and the special handling
2270 of the ".." name. Varient that is only called by old search code which requires
2271 pattern translation.
2272 *******************************************************************/
2274 bool mask_match_search(const char *string, const char *pattern, bool is_case_sensitive)
2276 if (ISDOTDOT(string))
2281 return ms_fnmatch(pattern, string, True, is_case_sensitive) == 0;
2284 /*******************************************************************
2285 A wrapper that handles a list of patters and calls mask_match()
2286 on each. Returns True if any of the patterns match.
2287 *******************************************************************/
2289 bool mask_match_list(const char *string, char **list, int listLen, bool is_case_sensitive)
2291 while (listLen-- > 0) {
2292 if (mask_match(string, *list++, is_case_sensitive))
2298 /*********************************************************
2299 Recursive routine that is called by unix_wild_match.
2300 *********************************************************/
2302 static bool unix_do_match(const char *regexp, const char *str)
2306 for( p = regexp; *p && *str; ) {
2317 * Look for a character matching
2318 * the one after the '*'.
2322 return true; /* Automatic match */
2325 while(*str && (*p != *str))
2329 * Patch from weidel@multichart.de. In the case of the regexp
2330 * '*XX*' we want to ensure there are at least 2 'X' characters
2331 * in the string after the '*' for a match to be made.
2338 * Eat all the characters that match, but count how many there were.
2341 while(*str && (*p == *str)) {
2347 * Now check that if the regexp had n identical characters that
2348 * matchcount had at least that many matches.
2351 while ( *(p+1) && (*(p+1) == *p)) {
2356 if ( matchcount <= 0 )
2360 str--; /* We've eaten the match char after the '*' */
2362 if(unix_do_match(p, str))
2384 if (!*p && str[0] == '.' && str[1] == 0)
2387 if (!*str && *p == '?') {
2393 if(!*str && (*p == '*' && p[1] == '\0'))
2399 /*******************************************************************
2400 Simple case insensitive interface to a UNIX wildcard matcher.
2401 Returns True if match, False if not.
2402 *******************************************************************/
2404 bool unix_wild_match(const char *pattern, const char *string)
2406 TALLOC_CTX *ctx = talloc_stackframe();
2412 p2 = talloc_strdup(ctx,pattern);
2413 s2 = talloc_strdup(ctx,string);
2421 /* Remove any *? and ** from the pattern as they are meaningless */
2422 for(p = p2; *p; p++) {
2423 while( *p == '*' && (p[1] == '?' ||p[1] == '*')) {
2424 memmove(&p[1], &p[2], strlen(&p[2])+1);
2428 if (strequal(p2,"*")) {
2433 ret = unix_do_match(p2, s2);
2438 /**********************************************************************
2439 Converts a name to a fully qualified domain name.
2440 Returns true if lookup succeeded, false if not (then fqdn is set to name)
2441 Note we deliberately use gethostbyname here, not getaddrinfo as we want
2442 to examine the h_aliases and I don't know how to do that with getaddrinfo.
2443 ***********************************************************************/
2445 bool name_to_fqdn(fstring fqdn, const char *name)
2448 struct hostent *hp = gethostbyname(name);
2450 if (!hp || !hp->h_name || !*hp->h_name) {
2451 DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name));
2452 fstrcpy(fqdn, name);
2456 /* Find out if the fqdn is returned as an alias
2457 * to cope with /etc/hosts files where the first
2458 * name is not the fqdn but the short name */
2459 if (hp->h_aliases && (! strchr_m(hp->h_name, '.'))) {
2461 for (i = 0; hp->h_aliases[i]; i++) {
2462 if (strchr_m(hp->h_aliases[i], '.')) {
2463 full = hp->h_aliases[i];
2468 if (full && (StrCaseCmp(full, "localhost.localdomain") == 0)) {
2469 DEBUG(1, ("WARNING: your /etc/hosts file may be broken!\n"));
2470 DEBUGADD(1, (" Specifing the machine hostname for address 127.0.0.1 may lead\n"));
2471 DEBUGADD(1, (" to Kerberos authentication problems as localhost.localdomain\n"));
2472 DEBUGADD(1, (" may end up being used instead of the real machine FQDN.\n"));
2479 DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, full));
2480 fstrcpy(fqdn, full);
2484 /**********************************************************************
2485 Append a DATA_BLOB to a talloc'ed object
2486 ***********************************************************************/
2488 void *talloc_append_blob(TALLOC_CTX *mem_ctx, void *buf, DATA_BLOB blob)
2490 size_t old_size = 0;
2493 if (blob.length == 0) {
2498 old_size = talloc_get_size(buf);
2501 result = (char *)TALLOC_REALLOC(mem_ctx, buf, old_size + blob.length);
2502 if (result == NULL) {
2506 memcpy(result + old_size, blob.data, blob.length);
2510 uint32 map_share_mode_to_deny_mode(uint32 share_access, uint32 private_options)
2512 switch (share_access & ~FILE_SHARE_DELETE) {
2513 case FILE_SHARE_NONE:
2515 case FILE_SHARE_READ:
2517 case FILE_SHARE_WRITE:
2519 case FILE_SHARE_READ|FILE_SHARE_WRITE:
2522 if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) {
2524 } else if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_FCB) {
2531 pid_t procid_to_pid(const struct server_id *proc)
2536 static uint32 my_vnn = NONCLUSTER_VNN;
2538 void set_my_vnn(uint32 vnn)
2540 DEBUG(10, ("vnn pid %d = %u\n", (int)sys_getpid(), (unsigned int)vnn));
2544 uint32 get_my_vnn(void)
2549 static uint64_t my_unique_id = 0;
2551 void set_my_unique_id(uint64_t unique_id)
2553 my_unique_id = unique_id;
2556 struct server_id pid_to_procid(pid_t pid)
2558 struct server_id result;
2560 result.unique_id = my_unique_id;
2561 result.vnn = my_vnn;
2565 struct server_id procid_self(void)
2567 return pid_to_procid(sys_getpid());
2570 bool procid_equal(const struct server_id *p1, const struct server_id *p2)
2572 if (p1->pid != p2->pid)
2574 if (p1->vnn != p2->vnn)
2579 bool cluster_id_equal(const struct server_id *id1,
2580 const struct server_id *id2)
2582 return procid_equal(id1, id2);
2585 bool procid_is_me(const struct server_id *pid)
2587 if (pid->pid != sys_getpid())
2589 if (pid->vnn != my_vnn)
2594 struct server_id interpret_pid(const char *pid_string)
2596 struct server_id result;
2599 if (sscanf(pid_string, "%u:%d", &vnn, &pid) == 2) {
2603 else if (sscanf(pid_string, "%d", &pid) == 1) {
2604 result.vnn = get_my_vnn();
2608 result.vnn = NONCLUSTER_VNN;
2611 /* Assigning to result.pid may have overflowed
2612 Map negative pid to -1: i.e. error */
2613 if (result.pid < 0) {
2616 result.unique_id = 0;
2620 char *procid_str(TALLOC_CTX *mem_ctx, const struct server_id *pid)
2622 if (pid->vnn == NONCLUSTER_VNN) {
2623 return talloc_asprintf(mem_ctx,
2628 return talloc_asprintf(mem_ctx,
2635 char *procid_str_static(const struct server_id *pid)
2637 return procid_str(talloc_tos(), pid);
2640 bool procid_valid(const struct server_id *pid)
2642 return (pid->pid != -1);
2645 bool procid_is_local(const struct server_id *pid)
2647 return pid->vnn == my_vnn;
2650 /****************************************************************
2651 Check if offset/length fit into bufsize. Should probably be
2652 merged with is_offset_safe, but this would require a rewrite
2653 of lanman.c. Later :-)
2654 ****************************************************************/
2656 bool trans_oob(uint32_t bufsize, uint32_t offset, uint32_t length)
2658 if ((offset + length < offset) || (offset + length < length)) {
2662 if ((offset > bufsize) || (offset + length > bufsize)) {
2669 /****************************************************************
2670 Check if an offset into a buffer is safe.
2671 If this returns True it's safe to indirect into the byte at
2673 ****************************************************************/
2675 bool is_offset_safe(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2677 const char *end_base = buf_base + buf_len;
2678 char *end_ptr = ptr + off;
2680 if (!buf_base || !ptr) {
2684 if (end_base < buf_base || end_ptr < ptr) {
2685 return False; /* wrap. */
2688 if (end_ptr < end_base) {
2694 /****************************************************************
2695 Return a safe pointer into a buffer, or NULL.
2696 ****************************************************************/
2698 char *get_safe_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2700 return is_offset_safe(buf_base, buf_len, ptr, off) ?
2704 /****************************************************************
2705 Return a safe pointer into a string within a buffer, or NULL.
2706 ****************************************************************/
2708 char *get_safe_str_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2710 if (!is_offset_safe(buf_base, buf_len, ptr, off)) {
2713 /* Check if a valid string exists at this offset. */
2714 if (skip_string(buf_base,buf_len, ptr + off) == NULL) {
2720 /****************************************************************
2721 Return an SVAL at a pointer, or failval if beyond the end.
2722 ****************************************************************/
2724 int get_safe_SVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval)
2727 * Note we use off+1 here, not off+2 as SVAL accesses ptr[0] and ptr[1],
2730 if (!is_offset_safe(buf_base, buf_len, ptr, off+1)) {
2733 return SVAL(ptr,off);
2736 /****************************************************************
2737 Return an IVAL at a pointer, or failval if beyond the end.
2738 ****************************************************************/
2740 int get_safe_IVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval)
2743 * Note we use off+3 here, not off+4 as IVAL accesses
2744 * ptr[0] ptr[1] ptr[2] ptr[3] NOT ptr[4].
2746 if (!is_offset_safe(buf_base, buf_len, ptr, off+3)) {
2749 return IVAL(ptr,off);
2752 /****************************************************************
2753 Split DOM\user into DOM and user. Do not mix with winbind variants of that
2754 call (they take care of winbind separator and other winbind specific settings).
2755 ****************************************************************/
2757 void split_domain_user(TALLOC_CTX *mem_ctx,
2758 const char *full_name,
2762 const char *p = NULL;
2764 p = strchr_m(full_name, '\\');
2767 *domain = talloc_strndup(mem_ctx, full_name,
2768 PTR_DIFF(p, full_name));
2769 *user = talloc_strdup(mem_ctx, p+1);
2771 *domain = talloc_strdup(mem_ctx, "");
2772 *user = talloc_strdup(mem_ctx, full_name);
2778 Disable these now we have checked all code paths and ensured
2779 NULL returns on zero request. JRA.
2781 /****************************************************************
2782 talloc wrapper functions that guarentee a null pointer return
2784 ****************************************************************/
2786 #ifndef MAX_TALLOC_SIZE
2787 #define MAX_TALLOC_SIZE 0x10000000
2791 * talloc and zero memory.
2792 * - returns NULL if size is zero.
2795 void *_talloc_zero_zeronull(const void *ctx, size_t size, const char *name)
2803 p = talloc_named_const(ctx, size, name);
2806 memset(p, '\0', size);
2813 * memdup with a talloc.
2814 * - returns NULL if size is zero.
2817 void *_talloc_memdup_zeronull(const void *t, const void *p, size_t size, const char *name)
2825 newp = talloc_named_const(t, size, name);
2827 memcpy(newp, p, size);
2834 * alloc an array, checking for integer overflow in the array size.
2835 * - returns NULL if count or el_size are zero.
2838 void *_talloc_array_zeronull(const void *ctx, size_t el_size, unsigned count, const char *name)
2840 if (count >= MAX_TALLOC_SIZE/el_size) {
2844 if (el_size == 0 || count == 0) {
2848 return talloc_named_const(ctx, el_size * count, name);
2852 * alloc an zero array, checking for integer overflow in the array size
2853 * - returns NULL if count or el_size are zero.
2856 void *_talloc_zero_array_zeronull(const void *ctx, size_t el_size, unsigned count, const char *name)
2858 if (count >= MAX_TALLOC_SIZE/el_size) {
2862 if (el_size == 0 || count == 0) {
2866 return _talloc_zero(ctx, el_size * count, name);
2870 * Talloc wrapper that returns NULL if size == 0.
2872 void *talloc_zeronull(const void *context, size_t size, const char *name)
2877 return talloc_named_const(context, size, name);
2881 /****************************************************************
2882 strip off leading '\\' from a hostname
2883 ****************************************************************/
2885 const char *strip_hostname(const char *s)
2891 if (strlen_m(s) < 3) {
2895 if (s[0] == '\\') s++;
2896 if (s[0] == '\\') s++;
2901 bool tevent_req_poll_ntstatus(struct tevent_req *req,
2902 struct tevent_context *ev,
2905 bool ret = tevent_req_poll(req, ev);
2907 *status = map_nt_error_from_unix(errno);
2912 bool any_nt_status_not_ok(NTSTATUS err1, NTSTATUS err2, NTSTATUS *result)
2914 if (!NT_STATUS_IS_OK(err1)) {
2918 if (!NT_STATUS_IS_OK(err2)) {
2925 int timeval_to_msec(struct timeval t)
2927 return t.tv_sec * 1000 + (t.tv_usec+999) / 1000;