2 * Unix SMB/Netbios implementation.
3 * Version 1.9. SMB parameters and setup
4 * Copyright (C) Andrew Tridgell 1992-1998
5 * Modified by Jeremy Allison 1995.
6 * Modified by Gerald (Jerry) Carter 2000-2001
8 * This program is free software; you can redistribute it and/or modify it under
9 * the terms of the GNU General Public License as published by the Free
10 * Software Foundation; either version 2 of the License, or (at your option)
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
18 * You should have received a copy of the GNU General Public License along with
19 * this program; if not, write to the Free Software Foundation, Inc., 675
20 * Mass Ave, Cambridge, MA 02139, USA.
25 #ifdef WITH_SMBPASSWD_SAM
29 smb_passwd is analogous to sam_passwd used everywhere
30 else. However, smb_passwd is limited to the information
31 stored by an smbpasswd entry
36 uid_t smb_userid; /* this is actually the unix uid_t */
37 char *smb_name; /* username string */
39 unsigned char *smb_passwd; /* Null if no password */
40 unsigned char *smb_nt_passwd; /* Null if no password */
42 uint16 acct_ctrl; /* account info (ACB_xxxx bit-mask) */
43 time_t pass_last_set_time; /* password last set time */
47 extern pstring samlogon_user;
48 extern BOOL sam_logon_in_ssb;
49 extern struct passdb_ops pdb_ops;
51 /* used for maintain locks on the smbpasswd file */
52 static int pw_file_lock_depth;
53 static void *global_vp;
56 enum pwf_access_type { PWF_READ, PWF_UPDATE, PWF_CREATE };
58 /***************************************************************
59 Lock an fd. Abandon after waitsecs seconds.
60 ****************************************************************/
62 static BOOL pw_file_lock(int fd, int type, int secs, int *plock_depth)
67 if(*plock_depth == 0) {
68 if (!do_file_lock(fd, secs, type)) {
69 DEBUG(10,("pw_file_lock: locking file failed, error = %s.\n",
80 /***************************************************************
81 Unlock an fd. Abandon after waitsecs seconds.
82 ****************************************************************/
84 static BOOL pw_file_unlock(int fd, int *plock_depth)
89 ret = do_file_lock(fd, 5, F_UNLCK);
95 DEBUG(10,("pw_file_unlock: unlocking file failed, error = %s.\n",
101 /**************************************************************
102 Intialize a smb_passwd struct
103 *************************************************************/
104 static void pdb_init_smb(struct smb_passwd *user)
110 user->pass_last_set_time = (time_t)-1;
115 /***************************************************************
116 Internal fn to enumerate the smbpasswd list. Returns a void pointer
117 to ensure no modification outside this module. Checks for atomic
118 rename of smbpasswd file on update or create once the lock has
119 been granted to prevent race conditions. JRA.
120 ****************************************************************/
122 static void *startsmbfilepwent(const char *pfile, enum pwf_access_type type, int *lock_depth)
125 const char *open_mode = NULL;
127 int lock_type = F_RDLCK;
130 DEBUG(0, ("startsmbfilepwent: No SMB password file set\n"));
145 * Ensure atomic file creation.
150 for(i = 0; i < 5; i++) {
151 if((fd = sys_open(pfile, O_CREAT|O_TRUNC|O_EXCL|O_RDWR, 0600))!=-1)
153 sys_usleep(200); /* Spin, spin... */
156 DEBUG(0,("startsmbfilepwent_internal: too many race conditions creating file %s\n", pfile));
166 for(race_loop = 0; race_loop < 5; race_loop++) {
167 DEBUG(10, ("startsmbfilepwent_internal: opening file %s\n", pfile));
169 if((fp = sys_fopen(pfile, open_mode)) == NULL) {
170 DEBUG(0, ("startsmbfilepwent_internal: unable to open file %s. Error was %s\n", pfile, strerror(errno) ));
174 if (!pw_file_lock(fileno(fp), lock_type, 5, lock_depth)) {
175 DEBUG(0, ("startsmbfilepwent_internal: unable to lock file %s. Error was %s\n", pfile, strerror(errno) ));
181 * Only check for replacement races on update or create.
182 * For read we don't mind if the data is one record out of date.
185 if(type == PWF_READ) {
188 SMB_STRUCT_STAT sbuf1, sbuf2;
191 * Avoid the potential race condition between the open and the lock
192 * by doing a stat on the filename and an fstat on the fd. If the
193 * two inodes differ then someone did a rename between the open and
194 * the lock. Back off and try the open again. Only do this 5 times to
195 * prevent infinate loops. JRA.
198 if (sys_stat(pfile,&sbuf1) != 0) {
199 DEBUG(0, ("startsmbfilepwent_internal: unable to stat file %s. Error was %s\n", pfile, strerror(errno)));
200 pw_file_unlock(fileno(fp), lock_depth);
205 if (sys_fstat(fileno(fp),&sbuf2) != 0) {
206 DEBUG(0, ("startsmbfilepwent_internal: unable to fstat file %s. Error was %s\n", pfile, strerror(errno)));
207 pw_file_unlock(fileno(fp), lock_depth);
212 if( sbuf1.st_ino == sbuf2.st_ino) {
218 * Race occurred - back off and try again...
221 pw_file_unlock(fileno(fp), lock_depth);
227 DEBUG(0, ("startsmbfilepwent_internal: too many race conditions opening file %s\n", pfile));
231 /* Set a buffer to do more efficient reads */
232 setvbuf(fp, (char *)NULL, _IOFBF, 1024);
234 /* Make sure it is only rw by the owner */
235 if(fchmod(fileno(fp), S_IRUSR|S_IWUSR) == -1) {
236 DEBUG(0, ("startsmbfilepwent_internal: failed to set 0600 permissions on password file %s. \
237 Error was %s\n.", pfile, strerror(errno) ));
238 pw_file_unlock(fileno(fp), lock_depth);
243 /* We have a lock on the file. */
247 /***************************************************************
248 End enumeration of the smbpasswd list.
249 ****************************************************************/
250 static void endsmbfilepwent(void *vp, int *lock_depth)
252 FILE *fp = (FILE *)vp;
254 pw_file_unlock(fileno(fp), lock_depth);
256 DEBUG(7, ("endsmbfilepwent_internal: closed password file.\n"));
259 /*************************************************************************
260 Routine to return the next entry in the smbpasswd list.
261 *************************************************************************/
263 static struct smb_passwd *getsmbfilepwent(void *vp)
265 /* Static buffers we will return. */
266 static struct smb_passwd pw_buf;
267 static pstring user_name;
268 static unsigned char smbpwd[16];
269 static unsigned char smbntpwd[16];
270 FILE *fp = (FILE *)vp;
278 DEBUG(0,("getsmbfilepwent: Bad password file pointer.\n"));
282 pdb_init_smb(&pw_buf);
284 pw_buf.acct_ctrl = ACB_NORMAL;
287 * Scan the file, a line at a time and check if the name matches.
292 fgets(linebuf, 256, fp);
298 * Check if the string is terminated with a newline - if not
299 * then we must keep reading and discard until we get one.
301 if ((linebuf_len = strlen(linebuf)) == 0)
304 if (linebuf[linebuf_len - 1] != '\n') {
306 while (!ferror(fp) && !feof(fp)) {
312 linebuf[linebuf_len - 1] = '\0';
314 #ifdef DEBUG_PASSWORD
315 DEBUG(100, ("getsmbfilepwent: got line |%s|\n", linebuf));
317 if ((linebuf[0] == 0) && feof(fp)) {
318 DEBUG(4, ("getsmbfilepwent: end of file reached\n"));
322 * The line we have should be of the form :-
324 * username:uid:32hex bytes:[Account type]:LCT-12345678....other flags presently
329 * username:uid:32hex bytes:32hex bytes:[Account type]:LCT-12345678....ignored....
331 * if Windows NT compatible passwords are also present.
332 * [Account type] is an ascii encoding of the type of account.
333 * LCT-(8 hex digits) is the time_t value of the last change time.
336 if (linebuf[0] == '#' || linebuf[0] == '\0') {
337 DEBUG(6, ("getsmbfilepwent: skipping comment or blank line\n"));
340 p = (unsigned char *) strchr_m(linebuf, ':');
342 DEBUG(0, ("getsmbfilepwent: malformed password entry (no :)\n"));
346 * As 256 is shorter than a pstring we don't need to check
347 * length here - if this ever changes....
349 strncpy(user_name, linebuf, PTR_DIFF(p, linebuf));
350 user_name[PTR_DIFF(p, linebuf)] = '\0';
354 p++; /* Go past ':' */
357 DEBUG(0, ("getsmbfilepwent: uids in the smbpasswd file must not be negative.\n"));
362 DEBUG(0, ("getsmbfilepwent: malformed password entry (uid not number)\n"));
366 uidval = atoi((char *) p);
368 while (*p && isdigit(*p))
372 DEBUG(0, ("getsmbfilepwent: malformed password entry (no : after uid)\n"));
376 pw_buf.smb_name = user_name;
377 pw_buf.smb_userid = uidval;
380 * Now get the password value - this should be 32 hex digits
381 * which are the ascii representations of a 16 byte string.
382 * Get two at a time and put them into the password.
388 if (*p == '*' || *p == 'X') {
389 /* Password deliberately invalid - end here. */
390 DEBUG(10, ("getsmbfilepwent: entry invalidated for user %s\n", user_name));
391 pw_buf.smb_nt_passwd = NULL;
392 pw_buf.smb_passwd = NULL;
393 pw_buf.acct_ctrl |= ACB_DISABLED;
397 if (linebuf_len < (PTR_DIFF(p, linebuf) + 33)) {
398 DEBUG(0, ("getsmbfilepwent: malformed password entry (passwd too short)\n"));
403 DEBUG(0, ("getsmbfilepwent: malformed password entry (no terminating :)\n"));
407 if (!strncasecmp((char *) p, "NO PASSWORD", 11)) {
408 pw_buf.smb_passwd = NULL;
409 pw_buf.acct_ctrl |= ACB_PWNOTREQ;
411 if (!pdb_gethexpwd((char *)p, smbpwd)) {
412 DEBUG(0, ("getsmbfilepwent: Malformed Lanman password entry (non hex chars)\n"));
415 pw_buf.smb_passwd = smbpwd;
419 * Now check if the NT compatible password is
422 pw_buf.smb_nt_passwd = NULL;
424 p += 33; /* Move to the first character of the line after
425 the lanman password. */
426 if ((linebuf_len >= (PTR_DIFF(p, linebuf) + 33)) && (p[32] == ':')) {
427 if (*p != '*' && *p != 'X') {
428 if(pdb_gethexpwd((char *)p,smbntpwd))
429 pw_buf.smb_nt_passwd = smbntpwd;
431 p += 33; /* Move to the first character of the line after
435 DEBUG(5,("getsmbfilepwent: returning passwd entry for user %s, uid %ld\n",
440 unsigned char *end_p = (unsigned char *)strchr_m((char *)p, ']');
441 pw_buf.acct_ctrl = pdb_decode_acct_ctrl((char*)p);
443 /* Must have some account type set. */
444 if(pw_buf.acct_ctrl == 0)
445 pw_buf.acct_ctrl = ACB_NORMAL;
447 /* Now try and get the last change time. */
452 if(*p && (StrnCaseCmp((char *)p, "LCT-", 4)==0)) {
455 for(i = 0; i < 8; i++) {
456 if(p[i] == '\0' || !isxdigit(p[i]))
461 * p points at 8 characters of hex digits -
462 * read into a time_t as the seconds since
463 * 1970 that the password was last changed.
465 pw_buf.pass_last_set_time = (time_t)strtol((char *)p, NULL, 16);
470 /* 'Old' style file. Fake up based on user name. */
472 * Currently trust accounts are kept in the same
473 * password file as 'normal accounts'. If this changes
474 * we will have to fix this code. JRA.
476 if(pw_buf.smb_name[strlen(pw_buf.smb_name) - 1] == '$') {
477 pw_buf.acct_ctrl &= ~ACB_NORMAL;
478 pw_buf.acct_ctrl |= ACB_WSTRUST;
485 DEBUG(5,("getsmbfilepwent: end of file reached.\n"));
489 /************************************************************************
490 Create a new smbpasswd entry - malloced space returned.
491 *************************************************************************/
493 static char *format_new_smbpasswd_entry(struct smb_passwd *newpwd)
495 int new_entry_length;
500 new_entry_length = strlen(newpwd->smb_name) + 1 + 15 + 1 + 32 + 1 + 32 + 1 + NEW_PW_FORMAT_SPACE_PADDED_LEN + 1 + 13 + 2;
502 if((new_entry = (char *)malloc( new_entry_length )) == NULL) {
503 DEBUG(0, ("format_new_smbpasswd_entry: Malloc failed adding entry for user %s.\n", newpwd->smb_name ));
507 slprintf(new_entry, new_entry_length - 1, "%s:%u:", newpwd->smb_name, (unsigned)newpwd->smb_userid);
508 p = &new_entry[strlen(new_entry)];
510 if(newpwd->smb_passwd != NULL) {
511 for( i = 0; i < 16; i++) {
512 slprintf((char *)&p[i*2], new_entry_length - (p - new_entry) - 1, "%02X", newpwd->smb_passwd[i]);
516 if(newpwd->acct_ctrl & ACB_PWNOTREQ)
517 safe_strcpy((char *)p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", new_entry_length - 1 - (p - new_entry));
519 safe_strcpy((char *)p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", new_entry_length - 1 - (p - new_entry));
526 if(newpwd->smb_nt_passwd != NULL) {
527 for( i = 0; i < 16; i++) {
528 slprintf((char *)&p[i*2], new_entry_length - 1 - (p - new_entry), "%02X", newpwd->smb_nt_passwd[i]);
531 if(newpwd->acct_ctrl & ACB_PWNOTREQ)
532 safe_strcpy((char *)p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", new_entry_length - 1 - (p - new_entry));
534 safe_strcpy((char *)p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", new_entry_length - 1 - (p - new_entry));
541 /* Add the account encoding and the last change time. */
542 slprintf((char *)p, new_entry_length - 1 - (p - new_entry), "%s:LCT-%08X:\n",
543 pdb_encode_acct_ctrl(newpwd->acct_ctrl, NEW_PW_FORMAT_SPACE_PADDED_LEN),
544 (uint32)newpwd->pass_last_set_time);
549 /************************************************************************
550 Routine to add an entry to the smbpasswd file.
551 *************************************************************************/
553 static BOOL add_smbfilepwd_entry(struct smb_passwd *newpwd)
555 char *pfile = lp_smb_passwd_file();
556 struct smb_passwd *pwd = NULL;
560 size_t new_entry_length;
564 /* Open the smbpassword file - for update. */
565 fp = startsmbfilepwent(pfile, PWF_UPDATE, &pw_file_lock_depth);
567 if (fp == NULL && errno == ENOENT) {
568 /* Try again - create. */
569 fp = startsmbfilepwent(pfile, PWF_CREATE, &pw_file_lock_depth);
573 DEBUG(0, ("add_smbfilepwd_entry: unable to open file.\n"));
578 * Scan the file, a line at a time and check if the name matches.
581 while ((pwd = getsmbfilepwent(fp)) != NULL)
583 if (strequal(newpwd->smb_name, pwd->smb_name))
585 DEBUG(0, ("add_smbfilepwd_entry: entry with name %s already exists\n", pwd->smb_name));
586 endsmbfilepwent(fp, &pw_file_lock_depth);
591 /* Ok - entry doesn't exist. We can add it */
593 /* Create a new smb passwd entry and set it to the given password. */
595 * The add user write needs to be atomic - so get the fd from
596 * the fp and do a raw write() call.
600 if((offpos = sys_lseek(fd, 0, SEEK_END)) == -1)
602 DEBUG(0, ("add_smbfilepwd_entry(sys_lseek): Failed to add entry for user %s to file %s. \
603 Error was %s\n", newpwd->smb_name, pfile, strerror(errno)));
604 endsmbfilepwent(fp, &pw_file_lock_depth);
608 if((new_entry = format_new_smbpasswd_entry(newpwd)) == NULL)
610 DEBUG(0, ("add_smbfilepwd_entry(malloc): Failed to add entry for user %s to file %s. \
611 Error was %s\n", newpwd->smb_name, pfile, strerror(errno)));
612 endsmbfilepwent(fp, &pw_file_lock_depth);
616 new_entry_length = strlen(new_entry);
618 #ifdef DEBUG_PASSWORD
619 DEBUG(100, ("add_smbfilepwd_entry(%d): new_entry_len %d made line |%s|",
620 fd, new_entry_length, new_entry));
623 if ((wr_len = write(fd, new_entry, new_entry_length)) != new_entry_length)
625 DEBUG(0, ("add_smbfilepwd_entry(write): %d Failed to add entry for user %s to file %s. \
626 Error was %s\n", wr_len, newpwd->smb_name, pfile, strerror(errno)));
628 /* Remove the entry we just wrote. */
629 if(sys_ftruncate(fd, offpos) == -1)
631 DEBUG(0, ("add_smbfilepwd_entry: ERROR failed to ftruncate file %s. \
632 Error was %s. Password file may be corrupt ! Please examine by hand !\n",
633 newpwd->smb_name, strerror(errno)));
636 endsmbfilepwent(fp, &pw_file_lock_depth);
642 endsmbfilepwent(fp, &pw_file_lock_depth);
646 /************************************************************************
647 Routine to search the smbpasswd file for an entry matching the username.
648 and then modify its password entry. We can't use the startsmbpwent()/
649 getsmbpwent()/endsmbpwent() interfaces here as we depend on looking
650 in the actual file to decide how much room we have to write data.
651 override = False, normal
652 override = True, override XXXXXXXX'd out password or NO PASS
653 ************************************************************************/
655 static BOOL mod_smbfilepwd_entry(struct smb_passwd* pwd, BOOL override)
657 /* Static buffers we will return. */
658 static pstring user_name;
665 unsigned char *p = NULL;
666 size_t linebuf_len = 0;
669 char *pfile = lp_smb_passwd_file();
670 BOOL found_entry = False;
671 BOOL got_pass_last_set_time = False;
673 SMB_OFF_T pwd_seekpos = 0;
680 DEBUG(0, ("No SMB password file set\n"));
683 DEBUG(10, ("mod_smbfilepwd_entry: opening file %s\n", pfile));
685 fp = sys_fopen(pfile, "r+");
688 DEBUG(0, ("mod_smbfilepwd_entry: unable to open file %s\n", pfile));
691 /* Set a buffer to do more efficient reads */
692 setvbuf(fp, readbuf, _IOFBF, sizeof(readbuf));
696 if (!pw_file_lock(lockfd, F_WRLCK, 5, &pw_file_lock_depth)) {
697 DEBUG(0, ("mod_smbfilepwd_entry: unable to lock file %s\n", pfile));
702 /* Make sure it is only rw by the owner */
705 /* We have a write lock on the file. */
707 * Scan the file, a line at a time and check if the name matches.
710 pwd_seekpos = sys_ftell(fp);
714 fgets(linebuf, sizeof(linebuf), fp);
716 pw_file_unlock(lockfd, &pw_file_lock_depth);
722 * Check if the string is terminated with a newline - if not
723 * then we must keep reading and discard until we get one.
725 linebuf_len = strlen(linebuf);
726 if (linebuf[linebuf_len - 1] != '\n') {
728 while (!ferror(fp) && !feof(fp)) {
735 linebuf[linebuf_len - 1] = '\0';
738 #ifdef DEBUG_PASSWORD
739 DEBUG(100, ("mod_smbfilepwd_entry: got line |%s|\n", linebuf));
742 if ((linebuf[0] == 0) && feof(fp)) {
743 DEBUG(4, ("mod_smbfilepwd_entry: end of file reached\n"));
748 * The line we have should be of the form :-
750 * username:uid:[32hex bytes]:....other flags presently
755 * username:uid:[32hex bytes]:[32hex bytes]:[attributes]:LCT-XXXXXXXX:...ignored.
757 * if Windows NT compatible passwords are also present.
760 if (linebuf[0] == '#' || linebuf[0] == '\0') {
761 DEBUG(6, ("mod_smbfilepwd_entry: skipping comment or blank line\n"));
765 p = (unsigned char *) strchr_m(linebuf, ':');
768 DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (no :)\n"));
773 * As 256 is shorter than a pstring we don't need to check
774 * length here - if this ever changes....
776 strncpy(user_name, linebuf, PTR_DIFF(p, linebuf));
777 user_name[PTR_DIFF(p, linebuf)] = '\0';
778 if (strequal(user_name, pwd->smb_name)) {
785 pw_file_unlock(lockfd, &pw_file_lock_depth);
790 DEBUG(6, ("mod_smbfilepwd_entry: entry exists\n"));
792 /* User name matches - get uid and password */
793 p++; /* Go past ':' */
796 DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (uid not number)\n"));
797 pw_file_unlock(lockfd, &pw_file_lock_depth);
802 while (*p && isdigit(*p))
805 DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (no : after uid)\n"));
806 pw_file_unlock(lockfd, &pw_file_lock_depth);
812 * Now get the password value - this should be 32 hex digits
813 * which are the ascii representations of a 16 byte string.
814 * Get two at a time and put them into the password.
818 /* Record exact password position */
819 pwd_seekpos += PTR_DIFF(p, linebuf);
821 if (!override && (*p == '*' || *p == 'X')) {
822 /* Password deliberately invalid - end here. */
823 DEBUG(10, ("mod_smbfilepwd_entry: entry invalidated for user %s\n", user_name));
824 pw_file_unlock(lockfd, &pw_file_lock_depth);
829 if (linebuf_len < (PTR_DIFF(p, linebuf) + 33)) {
830 DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (passwd too short)\n"));
831 pw_file_unlock(lockfd,&pw_file_lock_depth);
837 DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (no terminating :)\n"));
838 pw_file_unlock(lockfd,&pw_file_lock_depth);
843 if (!override && (*p == '*' || *p == 'X')) {
844 pw_file_unlock(lockfd,&pw_file_lock_depth);
849 /* Now check if the NT compatible password is
851 p += 33; /* Move to the first character of the line after
852 the lanman password. */
853 if (linebuf_len < (PTR_DIFF(p, linebuf) + 33)) {
854 DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (passwd too short)\n"));
855 pw_file_unlock(lockfd,&pw_file_lock_depth);
861 DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (no terminating :)\n"));
862 pw_file_unlock(lockfd,&pw_file_lock_depth);
868 * Now check if the account info and the password last
869 * change time is available.
871 p += 33; /* Move to the first character of the line after
875 * If both NT and lanman passwords are provided - reset password
879 if(pwd->smb_passwd != NULL || pwd->smb_nt_passwd != NULL) {
880 /* Reqiure password in the future (should ACB_DISABLED also be reset?) */
881 pwd->acct_ctrl &= ~(ACB_PWNOTREQ);
887 encode_bits[i++] = *p++;
888 while((linebuf_len > PTR_DIFF(p, linebuf)) && (*p != ']'))
889 encode_bits[i++] = *p++;
891 encode_bits[i++] = ']';
892 encode_bits[i++] = '\0';
894 if(i == NEW_PW_FORMAT_SPACE_PADDED_LEN) {
896 * We are using a new format, space padded
897 * acct ctrl field. Encode the given acct ctrl
900 fstrcpy(encode_bits, pdb_encode_acct_ctrl(pwd->acct_ctrl, NEW_PW_FORMAT_SPACE_PADDED_LEN));
903 * If using the old format and the ACB_DISABLED or
904 * ACB_PWNOTREQ are set then set the lanman and NT passwords to NULL
905 * here as we have no space to encode the change.
907 if(pwd->acct_ctrl & (ACB_DISABLED|ACB_PWNOTREQ)) {
908 pwd->smb_passwd = NULL;
909 pwd->smb_nt_passwd = NULL;
913 /* Go past the ']' */
914 if(linebuf_len > PTR_DIFF(p, linebuf))
917 if((linebuf_len > PTR_DIFF(p, linebuf)) && (*p == ':')) {
920 /* We should be pointing at the LCT entry. */
921 if((linebuf_len > (PTR_DIFF(p, linebuf) + 13)) && (StrnCaseCmp((char *)p, "LCT-", 4) == 0)) {
924 for(i = 0; i < 8; i++) {
925 if(p[i] == '\0' || !isxdigit(p[i]))
930 * p points at 8 characters of hex digits -
931 * read into a time_t as the seconds since
932 * 1970 that the password was last changed.
934 got_pass_last_set_time = True;
936 } /* *p && StrnCaseCmp() */
940 /* Entry is correctly formed. */
942 /* Create the 32 byte representation of the new p16 */
943 if(pwd->smb_passwd != NULL) {
944 for (i = 0; i < 16; i++) {
945 slprintf(&ascii_p16[i*2], sizeof(fstring) - 1, "%02X", (uchar) pwd->smb_passwd[i]);
948 if(pwd->acct_ctrl & ACB_PWNOTREQ)
949 fstrcpy(ascii_p16, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX");
951 fstrcpy(ascii_p16, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
954 /* Add on the NT md4 hash */
957 if (pwd->smb_nt_passwd != NULL) {
958 for (i = 0; i < 16; i++) {
959 slprintf(&ascii_p16[(i*2)+33], sizeof(fstring) - 1, "%02X", (uchar) pwd->smb_nt_passwd[i]);
962 if(pwd->acct_ctrl & ACB_PWNOTREQ)
963 fstrcpy(&ascii_p16[33], "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX");
965 fstrcpy(&ascii_p16[33], "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
968 ascii_p16[66] = '\0'; /* null-terminate the string so that strlen works */
970 /* Add on the account info bits and the time of last
973 pwd->pass_last_set_time = time(NULL);
975 if(got_pass_last_set_time) {
976 slprintf(&ascii_p16[strlen(ascii_p16)],
977 sizeof(ascii_p16)-(strlen(ascii_p16)+1),
979 encode_bits, (uint32)pwd->pass_last_set_time );
980 wr_len = strlen(ascii_p16);
983 #ifdef DEBUG_PASSWORD
984 DEBUG(100,("mod_smbfilepwd_entry: "));
985 dump_data(100, ascii_p16, wr_len);
988 if(wr_len > sizeof(linebuf)) {
989 DEBUG(0, ("mod_smbfilepwd_entry: line to write (%d) is too long.\n", wr_len+1));
990 pw_file_unlock(lockfd,&pw_file_lock_depth);
996 * Do an atomic write into the file at the position defined by
1000 /* The mod user write needs to be atomic - so get the fd from
1001 the fp and do a raw write() call.
1006 if (sys_lseek(fd, pwd_seekpos - 1, SEEK_SET) != pwd_seekpos - 1) {
1007 DEBUG(0, ("mod_smbfilepwd_entry: seek fail on file %s.\n", pfile));
1008 pw_file_unlock(lockfd,&pw_file_lock_depth);
1013 /* Sanity check - ensure the areas we are writing are framed by ':' */
1014 if (read(fd, linebuf, wr_len+1) != wr_len+1) {
1015 DEBUG(0, ("mod_smbfilepwd_entry: read fail on file %s.\n", pfile));
1016 pw_file_unlock(lockfd,&pw_file_lock_depth);
1021 if ((linebuf[0] != ':') || (linebuf[wr_len] != ':')) {
1022 DEBUG(0, ("mod_smbfilepwd_entry: check on passwd file %s failed.\n", pfile));
1023 pw_file_unlock(lockfd,&pw_file_lock_depth);
1028 if (sys_lseek(fd, pwd_seekpos, SEEK_SET) != pwd_seekpos) {
1029 DEBUG(0, ("mod_smbfilepwd_entry: seek fail on file %s.\n", pfile));
1030 pw_file_unlock(lockfd,&pw_file_lock_depth);
1035 if (write(fd, ascii_p16, wr_len) != wr_len) {
1036 DEBUG(0, ("mod_smbfilepwd_entry: write failed in passwd file %s\n", pfile));
1037 pw_file_unlock(lockfd,&pw_file_lock_depth);
1042 pw_file_unlock(lockfd,&pw_file_lock_depth);
1047 /************************************************************************
1048 Routine to delete an entry in the smbpasswd file by name.
1049 *************************************************************************/
1051 static BOOL del_smbfilepwd_entry(const char *name)
1053 char *pfile = lp_smb_passwd_file();
1055 struct smb_passwd *pwd = NULL;
1057 FILE *fp_write = NULL;
1058 int pfile2_lockdepth = 0;
1060 slprintf(pfile2, sizeof(pfile2)-1, "%s.%u", pfile, (unsigned)sys_getpid() );
1063 * Open the smbpassword file - for update. It needs to be update
1064 * as we need any other processes to wait until we have replaced
1068 if((fp = startsmbfilepwent(pfile, PWF_UPDATE, &pw_file_lock_depth)) == NULL) {
1069 DEBUG(0, ("del_smbfilepwd_entry: unable to open file %s.\n", pfile));
1074 * Create the replacement password file.
1076 if((fp_write = startsmbfilepwent(pfile2, PWF_CREATE, &pfile2_lockdepth)) == NULL) {
1077 DEBUG(0, ("del_smbfilepwd_entry: unable to open file %s.\n", pfile));
1078 endsmbfilepwent(fp, &pw_file_lock_depth);
1083 * Scan the file, a line at a time and check if the name matches.
1086 while ((pwd = getsmbfilepwent(fp)) != NULL) {
1088 size_t new_entry_length;
1090 if (strequal(name, pwd->smb_name)) {
1091 DEBUG(10, ("add_smbfilepwd_entry: found entry with name %s - deleting it.\n", name));
1096 * We need to copy the entry out into the second file.
1099 if((new_entry = format_new_smbpasswd_entry(pwd)) == NULL)
1101 DEBUG(0, ("del_smbfilepwd_entry(malloc): Failed to copy entry for user %s to file %s. \
1102 Error was %s\n", pwd->smb_name, pfile2, strerror(errno)));
1104 endsmbfilepwent(fp, &pw_file_lock_depth);
1105 endsmbfilepwent(fp_write, &pfile2_lockdepth);
1109 new_entry_length = strlen(new_entry);
1111 if(fwrite(new_entry, 1, new_entry_length, fp_write) != new_entry_length)
1113 DEBUG(0, ("del_smbfilepwd_entry(write): Failed to copy entry for user %s to file %s. \
1114 Error was %s\n", pwd->smb_name, pfile2, strerror(errno)));
1116 endsmbfilepwent(fp, &pw_file_lock_depth);
1117 endsmbfilepwent(fp_write, &pfile2_lockdepth);
1126 * Ensure pfile2 is flushed before rename.
1129 if(fflush(fp_write) != 0)
1131 DEBUG(0, ("del_smbfilepwd_entry: Failed to flush file %s. Error was %s\n", pfile2, strerror(errno)));
1132 endsmbfilepwent(fp, &pw_file_lock_depth);
1133 endsmbfilepwent(fp_write,&pfile2_lockdepth);
1138 * Do an atomic rename - then release the locks.
1141 if(rename(pfile2,pfile) != 0) {
1145 endsmbfilepwent(fp, &pw_file_lock_depth);
1146 endsmbfilepwent(fp_write,&pfile2_lockdepth);
1150 /*********************************************************************
1151 Create a smb_passwd struct from a SAM_ACCOUNT.
1152 We will not allocate any new memory. The smb_passwd struct
1153 should only stay around as long as the SAM_ACCOUNT does.
1154 ********************************************************************/
1155 static BOOL build_smb_pass (struct smb_passwd *smb_pw, SAM_ACCOUNT *sampass)
1157 if (sampass == NULL)
1160 ZERO_STRUCTP(smb_pw);
1162 smb_pw->smb_userid=pdb_get_uid(sampass);
1163 smb_pw->smb_name=pdb_get_username(sampass);
1165 smb_pw->smb_passwd=pdb_get_lanman_passwd(sampass);
1166 smb_pw->smb_nt_passwd=pdb_get_nt_passwd(sampass);
1168 smb_pw->acct_ctrl=pdb_get_acct_ctrl(sampass);
1169 smb_pw->pass_last_set_time=pdb_get_pass_last_set_time(sampass);
1175 /*********************************************************************
1176 Create a SAM_ACCOUNT from a smb_passwd struct
1177 ********************************************************************/
1178 static BOOL build_sam_account(SAM_ACCOUNT *sam_pass, struct smb_passwd *pw_buf)
1180 struct passwd *pwfile;
1182 if (sam_pass==NULL) {
1183 DEBUG(5,("build_sam_account: SAM_ACCOUNT is NULL\n"));
1187 /* Verify in system password file...
1188 FIXME!!! This is where we should look up an internal
1189 mapping of allocated uid for machine accounts as well
1191 pwfile = sys_getpwnam(pw_buf->smb_name);
1192 if (pwfile == NULL) {
1193 DEBUG(0,("build_sam_account: smbpasswd database is corrupt! username %s not in unix passwd database!\n", pw_buf->smb_name));
1197 /* FIXME!! This doesn't belong here. Should be set in net_sam_logon()
1199 pstrcpy(samlogon_user, pw_buf->smb_name);
1201 pdb_set_uid (sam_pass, pwfile->pw_uid);
1202 pdb_set_gid (sam_pass, pwfile->pw_gid);
1203 pdb_set_fullname(sam_pass, pwfile->pw_gecos);
1205 pdb_set_user_rid(sam_pass, pdb_uid_to_user_rid (pwfile->pw_uid));
1207 /* should check the group mapping here instead of static mappig. JFM */
1208 pdb_set_group_rid(sam_pass, pdb_gid_to_group_rid(pwfile->pw_gid));
1210 pdb_set_username (sam_pass, pw_buf->smb_name);
1211 pdb_set_nt_passwd (sam_pass, pw_buf->smb_nt_passwd);
1212 pdb_set_lanman_passwd (sam_pass, pw_buf->smb_passwd);
1213 pdb_set_acct_ctrl (sam_pass, pw_buf->acct_ctrl);
1214 pdb_set_pass_last_set_time (sam_pass, pw_buf->pass_last_set_time);
1215 pdb_set_pass_can_change_time (sam_pass, pw_buf->pass_last_set_time);
1216 pdb_set_domain (sam_pass, lp_workgroup());
1218 pdb_set_dir_drive (sam_pass, lp_logon_drive());
1220 /* the smbpasswd format doesn't have a must change time field, so
1221 we can't get this right. The best we can do is to set this to
1222 some time in the future. 21 days seems as reasonable as any other value :)
1224 pdb_set_pass_must_change_time (sam_pass, pw_buf->pass_last_set_time + MAX_PASSWORD_AGE);
1226 /* check if this is a user account or a machine account */
1227 if (samlogon_user[strlen(samlogon_user)-1] != '$')
1230 gid_t gid = getegid();
1232 sam_logon_in_ssb = True;
1234 pstrcpy(str, lp_logon_script());
1235 standard_sub_advanced(-1, pw_buf->smb_name, "", gid, str);
1236 pdb_set_logon_script(sam_pass, str);
1238 pstrcpy(str, lp_logon_path());
1239 standard_sub_advanced(-1, pw_buf->smb_name, "", gid, str);
1240 pdb_set_profile_path(sam_pass, str);
1242 pstrcpy(str, lp_logon_home());
1243 standard_sub_advanced(-1, pw_buf->smb_name, "", gid, str);
1244 pdb_set_homedir(sam_pass, str);
1246 sam_logon_in_ssb = False;
1248 /* lkclXXXX this is OBSERVED behaviour by NT PDCs, enforced here. */
1249 pdb_set_group_rid (sam_pass, DOMAIN_GROUP_RID_USERS);
1254 /*****************************************************************
1255 Functions to be implemented by the new passdb API
1256 ****************************************************************/
1257 BOOL pdb_setsampwent (BOOL update)
1259 global_vp = startsmbfilepwent(lp_smb_passwd_file(),
1260 update ? PWF_UPDATE : PWF_READ,
1261 &pw_file_lock_depth);
1263 /* did we fail? Should we try to create it? */
1264 if (!global_vp && update && errno == ENOENT)
1267 /* slprintf(msg_str,msg_str_len-1,
1268 "smbpasswd file did not exist - attempting to create it.\n"); */
1269 DEBUG(0,("smbpasswd file did not exist - attempting to create it.\n"));
1270 fp = sys_fopen(lp_smb_passwd_file(), "w");
1273 fprintf(fp, "# Samba SMB password file\n");
1277 global_vp = startsmbfilepwent(lp_smb_passwd_file(),
1278 update ? PWF_UPDATE : PWF_READ,
1279 &pw_file_lock_depth);
1282 return (global_vp != NULL);
1285 void pdb_endsampwent (void)
1287 endsmbfilepwent(global_vp, &pw_file_lock_depth);
1290 /*****************************************************************
1291 ****************************************************************/
1292 BOOL pdb_getsampwent(SAM_ACCOUNT *user)
1294 struct smb_passwd *pw_buf=NULL;
1296 DEBUG(5,("pdb_getsampwent\n"));
1299 DEBUG(5,("pdb_getsampwent: user is NULL\n"));
1301 smb_panic("NULL pointer passed to pdb_getsampwent\n");
1308 /* do we have an entry? */
1309 pw_buf = getsmbfilepwent(global_vp);
1313 /* build the SAM_ACCOUNT entry from the smb_passwd struct.
1314 We loop in case the user in the pdb does not exist in
1315 the local system password file */
1316 if (build_sam_account(user, pw_buf))
1320 DEBUG(5,("pdb_getsampwent:done\n"));
1327 /****************************************************************
1328 Search smbpasswd file by iterating over the entries. Do not
1329 call getpwnam() for unix account information until we have found
1331 ***************************************************************/
1332 BOOL pdb_getsampwnam(SAM_ACCOUNT *sam_acct, char *username)
1334 struct smb_passwd *smb_pw;
1336 char *domain = NULL;
1340 DEBUG(10, ("pdb_getsampwnam: search by name: %s\n", username));
1343 /* break the username from the domain if we have
1344 been given a string in the form 'DOMAIN\user' */
1345 fstrcpy (name, username);
1346 if ((user=strchr_m(name, '\\')) != NULL) {
1352 /* if a domain was specified and it wasn't ours
1353 then there is no chance of matching */
1354 if ( domain && !StrCaseCmp(domain, lp_workgroup()) )
1357 /* startsmbfilepwent() is used here as we don't want to lookup
1358 the UNIX account in the local system password file until
1360 fp = startsmbfilepwent(lp_smb_passwd_file(), PWF_READ, &pw_file_lock_depth);
1363 DEBUG(0, ("unable to open passdb database.\n"));
1367 /* if we have a domain name, then we should map it to a UNIX
1372 while ( ((smb_pw=getsmbfilepwent(fp)) != NULL)&& (!strequal(smb_pw->smb_name, username)) )
1373 /* do nothing....another loop */ ;
1375 endsmbfilepwent(fp, &pw_file_lock_depth);
1378 /* did we locate the username in smbpasswd */
1382 DEBUG(10, ("pdb_getsampwnam: found by name: %s\n", smb_pw->smb_name));
1385 DEBUG(10,("pdb_getsampwnam:SAM_ACCOUNT is NULL\n"));
1387 smb_panic("NULL pointer passed to pdb_getsampwnam\n");
1392 /* now build the SAM_ACCOUNT */
1393 if (!build_sam_account(sam_acct, smb_pw))
1401 BOOL pdb_getsampwuid (SAM_ACCOUNT *sam_acct, uid_t uid)
1403 struct smb_passwd *smb_pw;
1406 DEBUG(10, ("pdb_getsampwuid: search by uid: %d\n", uid));
1408 /* Open the sam password file - not for update. */
1409 fp = startsmbfilepwent(lp_smb_passwd_file(), PWF_READ, &pw_file_lock_depth);
1412 DEBUG(0, ("unable to open passdb database.\n"));
1416 while ( ((smb_pw=getsmbfilepwent(fp)) != NULL) && (smb_pw->smb_userid != uid) )
1419 endsmbfilepwent(fp, &pw_file_lock_depth);
1421 /* did we locate the username in smbpasswd */
1425 DEBUG(10, ("pdb_getsampwuid: found by name: %s\n", smb_pw->smb_name));
1428 DEBUG(10,("pdb_getsampwuid:SAM_ACCOUNT is NULL\n"));
1430 smb_panic("NULL pointer passed to pdb_getsampwuid\n");
1435 /* now build the SAM_ACCOUNT */
1436 if (!build_sam_account(sam_acct, smb_pw))
1443 BOOL pdb_getsampwrid(SAM_ACCOUNT *sam_acct,uint32 rid)
1445 struct smb_passwd *smb_pw;
1448 DEBUG(10, ("pdb_getsampwrid: search by rid: %d\n", rid));
1450 /* Open the sam password file - not for update. */
1451 fp = startsmbfilepwent(lp_smb_passwd_file(), PWF_READ, &pw_file_lock_depth);
1454 DEBUG(0, ("unable to open passdb database.\n"));
1458 while ( ((smb_pw=getsmbfilepwent(fp)) != NULL) && (pdb_uid_to_user_rid(smb_pw->smb_userid) != rid) )
1461 endsmbfilepwent(fp, &pw_file_lock_depth);
1464 /* did we locate the username in smbpasswd */
1468 DEBUG(10, ("pdb_getsampwrid: found by name: %s\n", smb_pw->smb_name));
1471 DEBUG(10,("pdb_getsampwrid:SAM_ACCOUNT is NULL\n"));
1473 smb_panic("NULL pointer passed to pdb_getsampwrid\n");
1478 /* now build the SAM_ACCOUNT */
1479 if (!build_sam_account (sam_acct, smb_pw))
1486 BOOL pdb_add_sam_account(SAM_ACCOUNT *sampass)
1488 struct smb_passwd smb_pw;
1490 /* convert the SAM_ACCOUNT */
1491 build_smb_pass(&smb_pw, sampass);
1494 if(!add_smbfilepwd_entry(&smb_pw))
1500 BOOL pdb_update_sam_account(SAM_ACCOUNT *sampass, BOOL override)
1502 struct smb_passwd smb_pw;
1504 /* convert the SAM_ACCOUNT */
1505 build_smb_pass(&smb_pw, sampass);
1507 /* update the entry */
1508 if(!mod_smbfilepwd_entry(&smb_pw, override))
1514 BOOL pdb_delete_sam_account (char* username)
1516 return del_smbfilepwd_entry(username);
1520 /* Do *NOT* make this function static. It breaks the compile on gcc. JRA */
1521 void smbpass_dummy_function(void) { } /* stop some compilers complaining */
1522 #endif /* WTH_SMBPASSWD_SAM*/