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-rw-r--r--source3/passdb/pdb_smbpasswd.c1660
1 files changed, 1660 insertions, 0 deletions
diff --git a/source3/passdb/pdb_smbpasswd.c b/source3/passdb/pdb_smbpasswd.c
new file mode 100644
index 0000000000..89a4217c3b
--- /dev/null
+++ b/source3/passdb/pdb_smbpasswd.c
@@ -0,0 +1,1660 @@
+/*
+ * Unix SMB/CIFS implementation.
+ * SMB parameters and setup
+ * Copyright (C) Andrew Tridgell 1992-1998
+ * Modified by Jeremy Allison 1995.
+ * Modified by Gerald (Jerry) Carter 2000-2001
+ * Modified by Andrew Bartlett 2002.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 675
+ * Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "includes.h"
+
+
+/*
+ smb_passwd is analogous to sam_passwd used everywhere
+ else. However, smb_passwd is limited to the information
+ stored by an smbpasswd entry
+ */
+
+struct smb_passwd
+{
+ BOOL smb_userid_set; /* this is actually the unix uid_t */
+ uint32 smb_userid; /* this is actually the unix uid_t */
+ const char *smb_name; /* username string */
+
+ const unsigned char *smb_passwd; /* Null if no password */
+ const unsigned char *smb_nt_passwd; /* Null if no password */
+
+ uint16 acct_ctrl; /* account info (ACB_xxxx bit-mask) */
+ time_t pass_last_set_time; /* password last set time */
+};
+
+struct smbpasswd_privates
+{
+ /* used for maintain locks on the smbpasswd file */
+ int pw_file_lock_depth;
+
+ /* Global File pointer */
+ FILE *pw_file;
+
+ /* formerly static variables */
+ struct smb_passwd pw_buf;
+ pstring user_name;
+ unsigned char smbpwd[16];
+ unsigned char smbntpwd[16];
+
+ /* retrive-once info */
+ const char *smbpasswd_file;
+
+ BOOL permit_non_unix_accounts;
+
+ uint32 low_nua_userid;
+ uint32 high_nua_userid;
+
+};
+
+enum pwf_access_type { PWF_READ, PWF_UPDATE, PWF_CREATE };
+
+/*******************************************************************
+ Converts NT user RID to a UNIX uid.
+ ********************************************************************/
+
+static uid_t pdb_user_rid_to_uid(uint32 user_rid)
+{
+ return (uid_t)(((user_rid & (~USER_RID_TYPE))- 1000)/RID_MULTIPLIER);
+}
+
+/*******************************************************************
+ converts UNIX uid to an NT User RID.
+ ********************************************************************/
+
+static uint32 pdb_uid_to_user_rid(uid_t uid)
+{
+ return (((((uint32)uid)*RID_MULTIPLIER) + 1000) | USER_RID_TYPE);
+}
+
+/***************************************************************
+ Lock an fd. Abandon after waitsecs seconds.
+****************************************************************/
+
+static BOOL pw_file_lock(int fd, int type, int secs, int *plock_depth)
+{
+ if (fd < 0)
+ return False;
+
+ if(*plock_depth == 0) {
+ if (!do_file_lock(fd, secs, type)) {
+ DEBUG(10,("pw_file_lock: locking file failed, error = %s.\n",
+ strerror(errno)));
+ return False;
+ }
+ }
+
+ (*plock_depth)++;
+
+ return True;
+}
+
+/***************************************************************
+ Unlock an fd. Abandon after waitsecs seconds.
+****************************************************************/
+
+static BOOL pw_file_unlock(int fd, int *plock_depth)
+{
+ BOOL ret=True;
+
+ if(*plock_depth == 1)
+ ret = do_file_lock(fd, 5, F_UNLCK);
+
+ if (*plock_depth > 0)
+ (*plock_depth)--;
+
+ if(!ret)
+ DEBUG(10,("pw_file_unlock: unlocking file failed, error = %s.\n",
+ strerror(errno)));
+ return ret;
+}
+
+
+/**************************************************************
+ Intialize a smb_passwd struct
+ *************************************************************/
+
+static void pdb_init_smb(struct smb_passwd *user)
+{
+ if (user == NULL)
+ return;
+ ZERO_STRUCTP (user);
+
+ user->pass_last_set_time = (time_t)0;
+}
+
+/***************************************************************
+ Internal fn to enumerate the smbpasswd list. Returns a void pointer
+ to ensure no modification outside this module. Checks for atomic
+ rename of smbpasswd file on update or create once the lock has
+ been granted to prevent race conditions. JRA.
+****************************************************************/
+
+static FILE *startsmbfilepwent(const char *pfile, enum pwf_access_type type, int *lock_depth)
+{
+ FILE *fp = NULL;
+ const char *open_mode = NULL;
+ int race_loop = 0;
+ int lock_type = F_RDLCK;
+
+ if (!*pfile) {
+ DEBUG(0, ("startsmbfilepwent: No SMB password file set\n"));
+ return (NULL);
+ }
+
+ switch(type) {
+ case PWF_READ:
+ open_mode = "rb";
+ lock_type = F_RDLCK;
+ break;
+ case PWF_UPDATE:
+ open_mode = "r+b";
+ lock_type = F_WRLCK;
+ break;
+ case PWF_CREATE:
+ /*
+ * Ensure atomic file creation.
+ */
+ {
+ int i, fd = -1;
+
+ for(i = 0; i < 5; i++) {
+ if((fd = sys_open(pfile, O_CREAT|O_TRUNC|O_EXCL|O_RDWR, 0600))!=-1)
+ break;
+ sys_usleep(200); /* Spin, spin... */
+ }
+ if(fd == -1) {
+ DEBUG(0,("startsmbfilepwent_internal: too many race conditions creating file %s\n", pfile));
+ return NULL;
+ }
+ close(fd);
+ open_mode = "r+b";
+ lock_type = F_WRLCK;
+ break;
+ }
+ }
+
+ for(race_loop = 0; race_loop < 5; race_loop++) {
+ DEBUG(10, ("startsmbfilepwent_internal: opening file %s\n", pfile));
+
+ if((fp = sys_fopen(pfile, open_mode)) == NULL) {
+ DEBUG(2, ("startsmbfilepwent_internal: unable to open file %s. Error was %s\n", pfile, strerror(errno) ));
+ return NULL;
+ }
+
+ if (!pw_file_lock(fileno(fp), lock_type, 5, lock_depth)) {
+ DEBUG(0, ("startsmbfilepwent_internal: unable to lock file %s. Error was %s\n", pfile, strerror(errno) ));
+ fclose(fp);
+ return NULL;
+ }
+
+ /*
+ * Only check for replacement races on update or create.
+ * For read we don't mind if the data is one record out of date.
+ */
+
+ if(type == PWF_READ) {
+ break;
+ } else {
+ SMB_STRUCT_STAT sbuf1, sbuf2;
+
+ /*
+ * Avoid the potential race condition between the open and the lock
+ * by doing a stat on the filename and an fstat on the fd. If the
+ * two inodes differ then someone did a rename between the open and
+ * the lock. Back off and try the open again. Only do this 5 times to
+ * prevent infinate loops. JRA.
+ */
+
+ if (sys_stat(pfile,&sbuf1) != 0) {
+ DEBUG(0, ("startsmbfilepwent_internal: unable to stat file %s. Error was %s\n", pfile, strerror(errno)));
+ pw_file_unlock(fileno(fp), lock_depth);
+ fclose(fp);
+ return NULL;
+ }
+
+ if (sys_fstat(fileno(fp),&sbuf2) != 0) {
+ DEBUG(0, ("startsmbfilepwent_internal: unable to fstat file %s. Error was %s\n", pfile, strerror(errno)));
+ pw_file_unlock(fileno(fp), lock_depth);
+ fclose(fp);
+ return NULL;
+ }
+
+ if( sbuf1.st_ino == sbuf2.st_ino) {
+ /* No race. */
+ break;
+ }
+
+ /*
+ * Race occurred - back off and try again...
+ */
+
+ pw_file_unlock(fileno(fp), lock_depth);
+ fclose(fp);
+ }
+ }
+
+ if(race_loop == 5) {
+ DEBUG(0, ("startsmbfilepwent_internal: too many race conditions opening file %s\n", pfile));
+ return NULL;
+ }
+
+ /* Set a buffer to do more efficient reads */
+ setvbuf(fp, (char *)NULL, _IOFBF, 1024);
+
+ /* Make sure it is only rw by the owner */
+ if(fchmod(fileno(fp), S_IRUSR|S_IWUSR) == -1) {
+ DEBUG(0, ("startsmbfilepwent_internal: failed to set 0600 permissions on password file %s. \
+Error was %s\n.", pfile, strerror(errno) ));
+ pw_file_unlock(fileno(fp), lock_depth);
+ fclose(fp);
+ return NULL;
+ }
+
+ /* We have a lock on the file. */
+ return fp;
+}
+
+/***************************************************************
+ End enumeration of the smbpasswd list.
+****************************************************************/
+static void endsmbfilepwent(FILE *fp, int *lock_depth)
+{
+
+ pw_file_unlock(fileno(fp), lock_depth);
+ fclose(fp);
+ DEBUG(7, ("endsmbfilepwent_internal: closed password file.\n"));
+}
+
+/*************************************************************************
+ Routine to return the next entry in the smbpasswd list.
+ *************************************************************************/
+
+static struct smb_passwd *getsmbfilepwent(struct smbpasswd_privates *smbpasswd_state, FILE *fp)
+{
+ /* Static buffers we will return. */
+ struct smb_passwd *pw_buf = &smbpasswd_state->pw_buf;
+ char *user_name = smbpasswd_state->user_name;
+ unsigned char *smbpwd = smbpasswd_state->smbpwd;
+ unsigned char *smbntpwd = smbpasswd_state->smbntpwd;
+ char linebuf[256];
+ unsigned char c;
+ unsigned char *p;
+ long uidval;
+ size_t linebuf_len;
+
+ if(fp == NULL) {
+ DEBUG(0,("getsmbfilepwent: Bad password file pointer.\n"));
+ return NULL;
+ }
+
+ pdb_init_smb(pw_buf);
+
+ pw_buf->acct_ctrl = ACB_NORMAL;
+
+ /*
+ * Scan the file, a line at a time and check if the name matches.
+ */
+ while (!feof(fp)) {
+ linebuf[0] = '\0';
+
+ fgets(linebuf, 256, fp);
+ if (ferror(fp)) {
+ return NULL;
+ }
+
+ /*
+ * Check if the string is terminated with a newline - if not
+ * then we must keep reading and discard until we get one.
+ */
+ if ((linebuf_len = strlen(linebuf)) == 0)
+ continue;
+
+ if (linebuf[linebuf_len - 1] != '\n') {
+ c = '\0';
+ while (!ferror(fp) && !feof(fp)) {
+ c = fgetc(fp);
+ if (c == '\n')
+ break;
+ }
+ } else
+ linebuf[linebuf_len - 1] = '\0';
+
+#ifdef DEBUG_PASSWORD
+ DEBUG(100, ("getsmbfilepwent: got line |%s|\n", linebuf));
+#endif
+ if ((linebuf[0] == 0) && feof(fp)) {
+ DEBUG(4, ("getsmbfilepwent: end of file reached\n"));
+ break;
+ }
+ /*
+ * The line we have should be of the form :-
+ *
+ * username:uid:32hex bytes:[Account type]:LCT-12345678....other flags presently
+ * ignored....
+ *
+ * or,
+ *
+ * username:uid:32hex bytes:32hex bytes:[Account type]:LCT-12345678....ignored....
+ *
+ * if Windows NT compatible passwords are also present.
+ * [Account type] is an ascii encoding of the type of account.
+ * LCT-(8 hex digits) is the time_t value of the last change time.
+ */
+
+ if (linebuf[0] == '#' || linebuf[0] == '\0') {
+ DEBUG(6, ("getsmbfilepwent: skipping comment or blank line\n"));
+ continue;
+ }
+ p = (unsigned char *) strchr_m(linebuf, ':');
+ if (p == NULL) {
+ DEBUG(0, ("getsmbfilepwent: malformed password entry (no :)\n"));
+ continue;
+ }
+ /*
+ * As 256 is shorter than a pstring we don't need to check
+ * length here - if this ever changes....
+ */
+ strncpy(user_name, linebuf, PTR_DIFF(p, linebuf));
+ user_name[PTR_DIFF(p, linebuf)] = '\0';
+
+ /* Get smb uid. */
+
+ p++; /* Go past ':' */
+
+ if(*p == '-') {
+ DEBUG(0, ("getsmbfilepwent: uids in the smbpasswd file must not be negative.\n"));
+ continue;
+ }
+
+ if (!isdigit(*p)) {
+ DEBUG(0, ("getsmbfilepwent: malformed password entry (uid not number)\n"));
+ continue;
+ }
+
+ uidval = atoi((char *) p);
+
+ while (*p && isdigit(*p))
+ p++;
+
+ if (*p != ':') {
+ DEBUG(0, ("getsmbfilepwent: malformed password entry (no : after uid)\n"));
+ continue;
+ }
+
+ pw_buf->smb_name = user_name;
+ pw_buf->smb_userid = uidval;
+
+ /*
+ * Now get the password value - this should be 32 hex digits
+ * which are the ascii representations of a 16 byte string.
+ * Get two at a time and put them into the password.
+ */
+
+ /* Skip the ':' */
+ p++;
+
+ if (*p == '*' || *p == 'X') {
+ /* Password deliberately invalid - end here. */
+ DEBUG(10, ("getsmbfilepwent: entry invalidated for user %s\n", user_name));
+ pw_buf->smb_nt_passwd = NULL;
+ pw_buf->smb_passwd = NULL;
+ pw_buf->acct_ctrl |= ACB_DISABLED;
+ return pw_buf;
+ }
+
+ if (linebuf_len < (PTR_DIFF(p, linebuf) + 33)) {
+ DEBUG(0, ("getsmbfilepwent: malformed password entry (passwd too short)\n"));
+ continue;
+ }
+
+ if (p[32] != ':') {
+ DEBUG(0, ("getsmbfilepwent: malformed password entry (no terminating :)\n"));
+ continue;
+ }
+
+ if (!strncasecmp((char *) p, "NO PASSWORD", 11)) {
+ pw_buf->smb_passwd = NULL;
+ pw_buf->acct_ctrl |= ACB_PWNOTREQ;
+ } else {
+ if (!pdb_gethexpwd((char *)p, smbpwd)) {
+ DEBUG(0, ("getsmbfilepwent: Malformed Lanman password entry (non hex chars)\n"));
+ continue;
+ }
+ pw_buf->smb_passwd = smbpwd;
+ }
+
+ /*
+ * Now check if the NT compatible password is
+ * available.
+ */
+ pw_buf->smb_nt_passwd = NULL;
+
+ p += 33; /* Move to the first character of the line after
+ the lanman password. */
+ if ((linebuf_len >= (PTR_DIFF(p, linebuf) + 33)) && (p[32] == ':')) {
+ if (*p != '*' && *p != 'X') {
+ if(pdb_gethexpwd((char *)p,smbntpwd))
+ pw_buf->smb_nt_passwd = smbntpwd;
+ }
+ p += 33; /* Move to the first character of the line after
+ the NT password. */
+ }
+
+ DEBUG(5,("getsmbfilepwent: returning passwd entry for user %s, uid %ld\n",
+ user_name, uidval));
+
+ if (*p == '[')
+ {
+ unsigned char *end_p = (unsigned char *)strchr_m((char *)p, ']');
+ pw_buf->acct_ctrl = pdb_decode_acct_ctrl((char*)p);
+
+ /* Must have some account type set. */
+ if(pw_buf->acct_ctrl == 0)
+ pw_buf->acct_ctrl = ACB_NORMAL;
+
+ /* Now try and get the last change time. */
+ if(end_p)
+ p = end_p + 1;
+ if(*p == ':') {
+ p++;
+ if(*p && (StrnCaseCmp((char *)p, "LCT-", 4)==0)) {
+ int i;
+ p += 4;
+ for(i = 0; i < 8; i++) {
+ if(p[i] == '\0' || !isxdigit(p[i]))
+ break;
+ }
+ if(i == 8) {
+ /*
+ * p points at 8 characters of hex digits -
+ * read into a time_t as the seconds since
+ * 1970 that the password was last changed.
+ */
+ pw_buf->pass_last_set_time = (time_t)strtol((char *)p, NULL, 16);
+ }
+ }
+ }
+ } else {
+ /* 'Old' style file. Fake up based on user name. */
+ /*
+ * Currently trust accounts are kept in the same
+ * password file as 'normal accounts'. If this changes
+ * we will have to fix this code. JRA.
+ */
+ if(pw_buf->smb_name[strlen(pw_buf->smb_name) - 1] == '$') {
+ pw_buf->acct_ctrl &= ~ACB_NORMAL;
+ pw_buf->acct_ctrl |= ACB_WSTRUST;
+ }
+ }
+
+ return pw_buf;
+ }
+
+ DEBUG(5,("getsmbfilepwent: end of file reached.\n"));
+ return NULL;
+}
+
+/************************************************************************
+ Create a new smbpasswd entry - malloced space returned.
+*************************************************************************/
+
+static char *format_new_smbpasswd_entry(const struct smb_passwd *newpwd)
+{
+ int new_entry_length;
+ char *new_entry;
+ char *p;
+ int i;
+
+ new_entry_length = strlen(newpwd->smb_name) + 1 + 15 + 1 + 32 + 1 + 32 + 1 + NEW_PW_FORMAT_SPACE_PADDED_LEN + 1 + 13 + 2;
+
+ if((new_entry = (char *)malloc( new_entry_length )) == NULL) {
+ DEBUG(0, ("format_new_smbpasswd_entry: Malloc failed adding entry for user %s.\n", newpwd->smb_name ));
+ return NULL;
+ }
+
+ slprintf(new_entry, new_entry_length - 1, "%s:%u:", newpwd->smb_name, (unsigned)newpwd->smb_userid);
+ p = &new_entry[strlen(new_entry)];
+
+ if(newpwd->smb_passwd != NULL) {
+ for( i = 0; i < 16; i++) {
+ slprintf((char *)&p[i*2], new_entry_length - (p - new_entry) - 1, "%02X", newpwd->smb_passwd[i]);
+ }
+ } else {
+ i=0;
+ if(newpwd->acct_ctrl & ACB_PWNOTREQ)
+ safe_strcpy((char *)p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", new_entry_length - 1 - (p - new_entry));
+ else
+ safe_strcpy((char *)p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", new_entry_length - 1 - (p - new_entry));
+ }
+
+ p += 32;
+
+ *p++ = ':';
+
+ if(newpwd->smb_nt_passwd != NULL) {
+ for( i = 0; i < 16; i++) {
+ slprintf((char *)&p[i*2], new_entry_length - 1 - (p - new_entry), "%02X", newpwd->smb_nt_passwd[i]);
+ }
+ } else {
+ if(newpwd->acct_ctrl & ACB_PWNOTREQ)
+ safe_strcpy((char *)p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", new_entry_length - 1 - (p - new_entry));
+ else
+ safe_strcpy((char *)p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", new_entry_length - 1 - (p - new_entry));
+ }
+
+ p += 32;
+
+ *p++ = ':';
+
+ /* Add the account encoding and the last change time. */
+ slprintf((char *)p, new_entry_length - 1 - (p - new_entry), "%s:LCT-%08X:\n",
+ pdb_encode_acct_ctrl(newpwd->acct_ctrl, NEW_PW_FORMAT_SPACE_PADDED_LEN),
+ (uint32)newpwd->pass_last_set_time);
+
+ return new_entry;
+}
+
+/************************************************************************
+ Routine to add an entry to the smbpasswd file.
+*************************************************************************/
+
+static BOOL add_smbfilepwd_entry(struct smbpasswd_privates *smbpasswd_state, struct smb_passwd *newpwd)
+{
+ const char *pfile = smbpasswd_state->smbpasswd_file;
+ struct smb_passwd *pwd = NULL;
+ FILE *fp = NULL;
+ int wr_len;
+ int fd;
+ size_t new_entry_length;
+ char *new_entry;
+ SMB_OFF_T offpos;
+ uint32 max_found_uid = 0;
+
+ /* Open the smbpassword file - for update. */
+ fp = startsmbfilepwent(pfile, PWF_UPDATE, &(smbpasswd_state->pw_file_lock_depth));
+
+ if (fp == NULL && errno == ENOENT) {
+ /* Try again - create. */
+ fp = startsmbfilepwent(pfile, PWF_CREATE, &(smbpasswd_state->pw_file_lock_depth));
+ }
+
+ if (fp == NULL) {
+ DEBUG(0, ("add_smbfilepwd_entry: unable to open file.\n"));
+ return False;
+ }
+
+ /*
+ * Scan the file, a line at a time and check if the name matches.
+ */
+
+ while ((pwd = getsmbfilepwent(smbpasswd_state, fp)) != NULL)
+ {
+ if (strequal(newpwd->smb_name, pwd->smb_name))
+ {
+ DEBUG(0, ("add_smbfilepwd_entry: entry with name %s already exists\n", pwd->smb_name));
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+ return False;
+ }
+
+ /* Look for a free uid for use in non-unix accounts */
+ if (pwd->smb_userid > max_found_uid) {
+ max_found_uid = pwd->smb_userid;
+ }
+ }
+
+ /* Ok - entry doesn't exist. We can add it */
+
+ /* Account not in /etc/passwd hack!!! */
+ if (!newpwd->smb_userid_set) {
+ if (!smbpasswd_state->permit_non_unix_accounts) {
+ DEBUG(0, ("add_smbfilepwd_entry: cannot add account %s without unix identity\n", newpwd->smb_name));
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+ return False;
+ }
+
+ if (max_found_uid < smbpasswd_state->low_nua_userid) {
+ newpwd->smb_userid = smbpasswd_state->low_nua_userid;
+ newpwd->smb_userid_set = True;
+ } else if (max_found_uid >= smbpasswd_state->high_nua_userid) {
+ DEBUG(0, ("add_smbfilepwd_entry: cannot add machine %s, no uids are free! \n", newpwd->smb_name));
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+ return False;
+ } else {
+ newpwd->smb_userid = max_found_uid + 1;
+ newpwd->smb_userid_set = True;
+ }
+ }
+
+
+ /* Create a new smb passwd entry and set it to the given password. */
+ /*
+ * The add user write needs to be atomic - so get the fd from
+ * the fp and do a raw write() call.
+ */
+ fd = fileno(fp);
+
+ if((offpos = sys_lseek(fd, 0, SEEK_END)) == -1)
+ {
+ DEBUG(0, ("add_smbfilepwd_entry(sys_lseek): Failed to add entry for user %s to file %s. \
+Error was %s\n", newpwd->smb_name, pfile, strerror(errno)));
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+ return False;
+ }
+
+ if((new_entry = format_new_smbpasswd_entry(newpwd)) == NULL)
+ {
+ DEBUG(0, ("add_smbfilepwd_entry(malloc): Failed to add entry for user %s to file %s. \
+Error was %s\n", newpwd->smb_name, pfile, strerror(errno)));
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+ return False;
+ }
+
+ new_entry_length = strlen(new_entry);
+
+#ifdef DEBUG_PASSWORD
+ DEBUG(100, ("add_smbfilepwd_entry(%d): new_entry_len %d made line |%s|",
+ fd, new_entry_length, new_entry));
+#endif
+
+ if ((wr_len = write(fd, new_entry, new_entry_length)) != new_entry_length)
+ {
+ DEBUG(0, ("add_smbfilepwd_entry(write): %d Failed to add entry for user %s to file %s. \
+Error was %s\n", wr_len, newpwd->smb_name, pfile, strerror(errno)));
+
+ /* Remove the entry we just wrote. */
+ if(sys_ftruncate(fd, offpos) == -1)
+ {
+ DEBUG(0, ("add_smbfilepwd_entry: ERROR failed to ftruncate file %s. \
+Error was %s. Password file may be corrupt ! Please examine by hand !\n",
+ newpwd->smb_name, strerror(errno)));
+ }
+
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+ free(new_entry);
+ return False;
+ }
+
+ free(new_entry);
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+ return True;
+}
+
+/************************************************************************
+ Routine to search the smbpasswd file for an entry matching the username.
+ and then modify its password entry. We can't use the startsmbpwent()/
+ getsmbpwent()/endsmbpwent() interfaces here as we depend on looking
+ in the actual file to decide how much room we have to write data.
+ override = False, normal
+ override = True, override XXXXXXXX'd out password or NO PASS
+************************************************************************/
+
+static BOOL mod_smbfilepwd_entry(struct smbpasswd_privates *smbpasswd_state, const struct smb_passwd* pwd)
+{
+ /* Static buffers we will return. */
+ char * user_name = smbpasswd_state->user_name;
+
+ char linebuf[256];
+ char readbuf[1024];
+ unsigned char c;
+ fstring ascii_p16;
+ fstring encode_bits;
+ unsigned char *p = NULL;
+ size_t linebuf_len = 0;
+ FILE *fp;
+ int lockfd;
+ const char *pfile = smbpasswd_state->smbpasswd_file;
+ BOOL found_entry = False;
+ BOOL got_pass_last_set_time = False;
+
+ SMB_OFF_T pwd_seekpos = 0;
+
+ int i;
+ int wr_len;
+ int fd;
+
+ if (!*pfile) {
+ DEBUG(0, ("No SMB password file set\n"));
+ return False;
+ }
+ DEBUG(10, ("mod_smbfilepwd_entry: opening file %s\n", pfile));
+
+ fp = sys_fopen(pfile, "r+");
+
+ if (fp == NULL) {
+ DEBUG(0, ("mod_smbfilepwd_entry: unable to open file %s\n", pfile));
+ return False;
+ }
+ /* Set a buffer to do more efficient reads */
+ setvbuf(fp, readbuf, _IOFBF, sizeof(readbuf));
+
+ lockfd = fileno(fp);
+
+ if (!pw_file_lock(lockfd, F_WRLCK, 5, &(smbpasswd_state->pw_file_lock_depth))) {
+ DEBUG(0, ("mod_smbfilepwd_entry: unable to lock file %s\n", pfile));
+ fclose(fp);
+ return False;
+ }
+
+ /* Make sure it is only rw by the owner */
+ chmod(pfile, 0600);
+
+ /* We have a write lock on the file. */
+ /*
+ * Scan the file, a line at a time and check if the name matches.
+ */
+ while (!feof(fp)) {
+ pwd_seekpos = sys_ftell(fp);
+
+ linebuf[0] = '\0';
+
+ fgets(linebuf, sizeof(linebuf), fp);
+ if (ferror(fp)) {
+ pw_file_unlock(lockfd, &(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return False;
+ }
+
+ /*
+ * Check if the string is terminated with a newline - if not
+ * then we must keep reading and discard until we get one.
+ */
+ linebuf_len = strlen(linebuf);
+ if (linebuf[linebuf_len - 1] != '\n') {
+ c = '\0';
+ while (!ferror(fp) && !feof(fp)) {
+ c = fgetc(fp);
+ if (c == '\n') {
+ break;
+ }
+ }
+ } else {
+ linebuf[linebuf_len - 1] = '\0';
+ }
+
+#ifdef DEBUG_PASSWORD
+ DEBUG(100, ("mod_smbfilepwd_entry: got line |%s|\n", linebuf));
+#endif
+
+ if ((linebuf[0] == 0) && feof(fp)) {
+ DEBUG(4, ("mod_smbfilepwd_entry: end of file reached\n"));
+ break;
+ }
+
+ /*
+ * The line we have should be of the form :-
+ *
+ * username:uid:[32hex bytes]:....other flags presently
+ * ignored....
+ *
+ * or,
+ *
+ * username:uid:[32hex bytes]:[32hex bytes]:[attributes]:LCT-XXXXXXXX:...ignored.
+ *
+ * if Windows NT compatible passwords are also present.
+ */
+
+ if (linebuf[0] == '#' || linebuf[0] == '\0') {
+ DEBUG(6, ("mod_smbfilepwd_entry: skipping comment or blank line\n"));
+ continue;
+ }
+
+ p = (unsigned char *) strchr_m(linebuf, ':');
+
+ if (p == NULL) {
+ DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (no :)\n"));
+ continue;
+ }
+
+ /*
+ * As 256 is shorter than a pstring we don't need to check
+ * length here - if this ever changes....
+ */
+ strncpy(user_name, linebuf, PTR_DIFF(p, linebuf));
+ user_name[PTR_DIFF(p, linebuf)] = '\0';
+ if (strequal(user_name, pwd->smb_name)) {
+ found_entry = True;
+ break;
+ }
+ }
+
+ if (!found_entry) {
+ pw_file_unlock(lockfd, &(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return False;
+ }
+
+ DEBUG(6, ("mod_smbfilepwd_entry: entry exists\n"));
+
+ /* User name matches - get uid and password */
+ p++; /* Go past ':' */
+
+ if (!isdigit(*p)) {
+ DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (uid not number)\n"));
+ pw_file_unlock(lockfd, &(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return False;
+ }
+
+ while (*p && isdigit(*p))
+ p++;
+ if (*p != ':') {
+ DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (no : after uid)\n"));
+ pw_file_unlock(lockfd, &(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return False;
+ }
+
+ /*
+ * Now get the password value - this should be 32 hex digits
+ * which are the ascii representations of a 16 byte string.
+ * Get two at a time and put them into the password.
+ */
+ p++;
+
+ /* Record exact password position */
+ pwd_seekpos += PTR_DIFF(p, linebuf);
+
+ if (linebuf_len < (PTR_DIFF(p, linebuf) + 33)) {
+ DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (passwd too short)\n"));
+ pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return (False);
+ }
+
+ if (p[32] != ':') {
+ DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (no terminating :)\n"));
+ pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return False;
+ }
+
+ /* Now check if the NT compatible password is
+ available. */
+ p += 33; /* Move to the first character of the line after
+ the lanman password. */
+ if (linebuf_len < (PTR_DIFF(p, linebuf) + 33)) {
+ DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (passwd too short)\n"));
+ pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return (False);
+ }
+
+ if (p[32] != ':') {
+ DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (no terminating :)\n"));
+ pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return False;
+ }
+
+ /*
+ * Now check if the account info and the password last
+ * change time is available.
+ */
+ p += 33; /* Move to the first character of the line after
+ the NT password. */
+
+ if (*p == '[') {
+
+ i = 0;
+ encode_bits[i++] = *p++;
+ while((linebuf_len > PTR_DIFF(p, linebuf)) && (*p != ']'))
+ encode_bits[i++] = *p++;
+
+ encode_bits[i++] = ']';
+ encode_bits[i++] = '\0';
+
+ if(i == NEW_PW_FORMAT_SPACE_PADDED_LEN) {
+ /*
+ * We are using a new format, space padded
+ * acct ctrl field. Encode the given acct ctrl
+ * bits into it.
+ */
+ fstrcpy(encode_bits, pdb_encode_acct_ctrl(pwd->acct_ctrl, NEW_PW_FORMAT_SPACE_PADDED_LEN));
+ } else {
+ DEBUG(0,("mod_smbfilepwd_entry: Using old smbpasswd format. This is no longer supported.!\n"));
+ DEBUG(0,("mod_smbfilepwd_entry: No changes made, failing.!\n"));
+ return False;
+ }
+
+ /* Go past the ']' */
+ if(linebuf_len > PTR_DIFF(p, linebuf))
+ p++;
+
+ if((linebuf_len > PTR_DIFF(p, linebuf)) && (*p == ':')) {
+ p++;
+
+ /* We should be pointing at the LCT entry. */
+ if((linebuf_len > (PTR_DIFF(p, linebuf) + 13)) && (StrnCaseCmp((char *)p, "LCT-", 4) == 0)) {
+
+ p += 4;
+ for(i = 0; i < 8; i++) {
+ if(p[i] == '\0' || !isxdigit(p[i]))
+ break;
+ }
+ if(i == 8) {
+ /*
+ * p points at 8 characters of hex digits -
+ * read into a time_t as the seconds since
+ * 1970 that the password was last changed.
+ */
+ got_pass_last_set_time = True;
+ } /* i == 8 */
+ } /* *p && StrnCaseCmp() */
+ } /* p == ':' */
+ } /* p == '[' */
+
+ /* Entry is correctly formed. */
+
+ /* Create the 32 byte representation of the new p16 */
+ if(pwd->smb_passwd != NULL) {
+ for (i = 0; i < 16; i++) {
+ slprintf(&ascii_p16[i*2], sizeof(fstring) - 1, "%02X", (uchar) pwd->smb_passwd[i]);
+ }
+ } else {
+ if(pwd->acct_ctrl & ACB_PWNOTREQ)
+ fstrcpy(ascii_p16, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX");
+ else
+ fstrcpy(ascii_p16, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
+ }
+
+ /* Add on the NT md4 hash */
+ ascii_p16[32] = ':';
+ wr_len = 66;
+ if (pwd->smb_nt_passwd != NULL) {
+ for (i = 0; i < 16; i++) {
+ slprintf(&ascii_p16[(i*2)+33], sizeof(fstring) - 1, "%02X", (uchar) pwd->smb_nt_passwd[i]);
+ }
+ } else {
+ if(pwd->acct_ctrl & ACB_PWNOTREQ)
+ fstrcpy(&ascii_p16[33], "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX");
+ else
+ fstrcpy(&ascii_p16[33], "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
+ }
+ ascii_p16[65] = ':';
+ ascii_p16[66] = '\0'; /* null-terminate the string so that strlen works */
+
+ /* Add on the account info bits and the time of last
+ password change. */
+
+ if(got_pass_last_set_time) {
+ slprintf(&ascii_p16[strlen(ascii_p16)],
+ sizeof(ascii_p16)-(strlen(ascii_p16)+1),
+ "%s:LCT-%08X:",
+ encode_bits, (uint32)pwd->pass_last_set_time );
+ wr_len = strlen(ascii_p16);
+ }
+
+#ifdef DEBUG_PASSWORD
+ DEBUG(100,("mod_smbfilepwd_entry: "));
+ dump_data(100, ascii_p16, wr_len);
+#endif
+
+ if(wr_len > sizeof(linebuf)) {
+ DEBUG(0, ("mod_smbfilepwd_entry: line to write (%d) is too long.\n", wr_len+1));
+ pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return (False);
+ }
+
+ /*
+ * Do an atomic write into the file at the position defined by
+ * seekpos.
+ */
+
+ /* The mod user write needs to be atomic - so get the fd from
+ the fp and do a raw write() call.
+ */
+
+ fd = fileno(fp);
+
+ if (sys_lseek(fd, pwd_seekpos - 1, SEEK_SET) != pwd_seekpos - 1) {
+ DEBUG(0, ("mod_smbfilepwd_entry: seek fail on file %s.\n", pfile));
+ pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return False;
+ }
+
+ /* Sanity check - ensure the areas we are writing are framed by ':' */
+ if (read(fd, linebuf, wr_len+1) != wr_len+1) {
+ DEBUG(0, ("mod_smbfilepwd_entry: read fail on file %s.\n", pfile));
+ pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return False;
+ }
+
+ if ((linebuf[0] != ':') || (linebuf[wr_len] != ':')) {
+ DEBUG(0, ("mod_smbfilepwd_entry: check on passwd file %s failed.\n", pfile));
+ pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return False;
+ }
+
+ if (sys_lseek(fd, pwd_seekpos, SEEK_SET) != pwd_seekpos) {
+ DEBUG(0, ("mod_smbfilepwd_entry: seek fail on file %s.\n", pfile));
+ pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return False;
+ }
+
+ if (write(fd, ascii_p16, wr_len) != wr_len) {
+ DEBUG(0, ("mod_smbfilepwd_entry: write failed in passwd file %s\n", pfile));
+ pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return False;
+ }
+
+ pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth));
+ fclose(fp);
+ return True;
+}
+
+/************************************************************************
+ Routine to delete an entry in the smbpasswd file by name.
+*************************************************************************/
+
+static BOOL del_smbfilepwd_entry(struct smbpasswd_privates *smbpasswd_state, const char *name)
+{
+ const char *pfile = smbpasswd_state->smbpasswd_file;
+ pstring pfile2;
+ struct smb_passwd *pwd = NULL;
+ FILE *fp = NULL;
+ FILE *fp_write = NULL;
+ int pfile2_lockdepth = 0;
+
+ slprintf(pfile2, sizeof(pfile2)-1, "%s.%u", pfile, (unsigned)sys_getpid() );
+
+ /*
+ * Open the smbpassword file - for update. It needs to be update
+ * as we need any other processes to wait until we have replaced
+ * it.
+ */
+
+ if((fp = startsmbfilepwent(pfile, PWF_UPDATE, &(smbpasswd_state->pw_file_lock_depth))) == NULL) {
+ DEBUG(0, ("del_smbfilepwd_entry: unable to open file %s.\n", pfile));
+ return False;
+ }
+
+ /*
+ * Create the replacement password file.
+ */
+ if((fp_write = startsmbfilepwent(pfile2, PWF_CREATE, &pfile2_lockdepth)) == NULL) {
+ DEBUG(0, ("del_smbfilepwd_entry: unable to open file %s.\n", pfile));
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+ return False;
+ }
+
+ /*
+ * Scan the file, a line at a time and check if the name matches.
+ */
+
+ while ((pwd = getsmbfilepwent(smbpasswd_state, fp)) != NULL) {
+ char *new_entry;
+ size_t new_entry_length;
+
+ if (strequal(name, pwd->smb_name)) {
+ DEBUG(10, ("add_smbfilepwd_entry: found entry with name %s - deleting it.\n", name));
+ continue;
+ }
+
+ /*
+ * We need to copy the entry out into the second file.
+ */
+
+ if((new_entry = format_new_smbpasswd_entry(pwd)) == NULL)
+ {
+ DEBUG(0, ("del_smbfilepwd_entry(malloc): Failed to copy entry for user %s to file %s. \
+Error was %s\n", pwd->smb_name, pfile2, strerror(errno)));
+ unlink(pfile2);
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+ endsmbfilepwent(fp_write, &pfile2_lockdepth);
+ return False;
+ }
+
+ new_entry_length = strlen(new_entry);
+
+ if(fwrite(new_entry, 1, new_entry_length, fp_write) != new_entry_length)
+ {
+ DEBUG(0, ("del_smbfilepwd_entry(write): Failed to copy entry for user %s to file %s. \
+Error was %s\n", pwd->smb_name, pfile2, strerror(errno)));
+ unlink(pfile2);
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+ endsmbfilepwent(fp_write, &pfile2_lockdepth);
+ free(new_entry);
+ return False;
+ }
+
+ free(new_entry);
+ }
+
+ /*
+ * Ensure pfile2 is flushed before rename.
+ */
+
+ if(fflush(fp_write) != 0)
+ {
+ DEBUG(0, ("del_smbfilepwd_entry: Failed to flush file %s. Error was %s\n", pfile2, strerror(errno)));
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+ endsmbfilepwent(fp_write,&pfile2_lockdepth);
+ return False;
+ }
+
+ /*
+ * Do an atomic rename - then release the locks.
+ */
+
+ if(rename(pfile2,pfile) != 0) {
+ unlink(pfile2);
+ }
+
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+ endsmbfilepwent(fp_write,&pfile2_lockdepth);
+ return True;
+}
+
+/*********************************************************************
+ Create a smb_passwd struct from a SAM_ACCOUNT.
+ We will not allocate any new memory. The smb_passwd struct
+ should only stay around as long as the SAM_ACCOUNT does.
+ ********************************************************************/
+static BOOL build_smb_pass (struct smb_passwd *smb_pw, const SAM_ACCOUNT *sampass)
+{
+ uid_t uid;
+
+ if (sampass == NULL)
+ return False;
+
+ ZERO_STRUCTP(smb_pw);
+
+ if (!IS_SAM_UNIX_USER(sampass)) {
+ smb_pw->smb_userid_set = False;
+ DEBUG(5,("build_sam_pass: storing user without a UNIX uid or gid. \n"));
+ } else {
+ uint32 rid = pdb_get_user_rid(sampass);
+ smb_pw->smb_userid_set = True;
+ uid = pdb_get_uid(sampass);
+
+ /* If the user specified a RID, make sure its able to be both stored and retreived */
+ if (rid && uid != pdb_user_rid_to_uid(rid)) {
+ DEBUG(0,("build_sam_pass: Failing attempt to store user with non-uid based user RID. \n"));
+ return False;
+ }
+
+ smb_pw->smb_userid=uid;
+ }
+
+ smb_pw->smb_name=(const char*)pdb_get_username(sampass);
+
+ smb_pw->smb_passwd=pdb_get_lanman_passwd(sampass);
+ smb_pw->smb_nt_passwd=pdb_get_nt_passwd(sampass);
+
+ smb_pw->acct_ctrl=pdb_get_acct_ctrl(sampass);
+ smb_pw->pass_last_set_time=pdb_get_pass_last_set_time(sampass);
+
+#if 0
+ /*
+ * ifdef'out by JFM on 11/29/2001.
+ * this assertion is no longer valid
+ * and I don't understand the goal
+ * and doing the same thing with the group mapping code
+ * is hairy !
+ *
+ * We just have the RID, in which SID is it valid ?
+ * our domain SID ? well known SID ? local SID ?
+ */
+
+ if (gid != pdb_group_rid_to_gid(pdb_get_group_rid(sampass))) {
+ DEBUG(0,("build_sam_pass: Failing attempt to store user with non-gid based primary group RID. \n"));
+ DEBUG(0,("build_sam_pass: %d %d %d. \n", *gid, pdb_group_rid_to_gid(pdb_get_group_rid(sampass)), pdb_get_group_rid(sampass)));
+ return False;
+ }
+#endif
+
+ return True;
+}
+
+/*********************************************************************
+ Create a SAM_ACCOUNT from a smb_passwd struct
+ ********************************************************************/
+static BOOL build_sam_account(struct smbpasswd_privates *smbpasswd_state, SAM_ACCOUNT *sam_pass, const struct smb_passwd *pw_buf)
+{
+ struct passwd *pwfile;
+
+ if (sam_pass==NULL) {
+ DEBUG(5,("build_sam_account: SAM_ACCOUNT is NULL\n"));
+ return False;
+ }
+
+ if ((smbpasswd_state->permit_non_unix_accounts)
+ && (pw_buf->smb_userid >= smbpasswd_state->low_nua_userid)
+ && (pw_buf->smb_userid <= smbpasswd_state->high_nua_userid)) {
+
+ pdb_set_user_rid(sam_pass, pdb_uid_to_user_rid (pw_buf->smb_userid));
+
+ /* lkclXXXX this is OBSERVED behaviour by NT PDCs, enforced here.
+
+ This was down the bottom for machines, but it looks pretty good as
+ a general default for non-unix users. --abartlet 2002-01-08
+ */
+ pdb_set_group_rid (sam_pass, DOMAIN_GROUP_RID_USERS);
+
+ } else {
+
+ uint32 grid;
+ GROUP_MAP map;
+
+ /* Verify in system password file...
+ FIXME!!! This is where we should look up an internal
+ mapping of allocated uid for machine accounts as well
+ --jerry */
+ pwfile = getpwnam_alloc(pw_buf->smb_name);
+ if (pwfile == NULL) {
+ DEBUG(0,("build_sam_account: smbpasswd database is corrupt! username %s not in unix passwd database!\n", pw_buf->smb_name));
+ return False;
+ }
+
+ pdb_set_uid (sam_pass, pwfile->pw_uid);
+ pdb_set_gid (sam_pass, pwfile->pw_gid);
+
+ pdb_set_fullname(sam_pass, pwfile->pw_gecos);
+
+ pdb_set_user_rid(sam_pass, pdb_uid_to_user_rid (pwfile->pw_uid));
+
+ if (get_group_map_from_gid(pwfile->pw_gid, &map, MAPPING_WITHOUT_PRIV)) {
+ sid_peek_rid(&map.sid, &grid);
+ } else {
+ grid=pdb_gid_to_group_rid(pwfile->pw_gid);
+ }
+
+ pdb_set_group_rid(sam_pass, grid);
+
+ /* check if this is a user account or a machine account */
+ if (pw_buf->smb_name[strlen(pw_buf->smb_name)-1] != '$')
+ {
+ pstring str;
+
+ pstrcpy(str, lp_logon_path());
+ standard_sub_advanced(-1, pwfile->pw_name, "", pwfile->pw_gid, pw_buf->smb_name, str);
+ pdb_set_profile_path(sam_pass, str, False);
+
+ pstrcpy(str, lp_logon_home());
+ standard_sub_advanced(-1, pwfile->pw_name, "", pwfile->pw_gid, pw_buf->smb_name, str);
+ pdb_set_homedir(sam_pass, str, False);
+
+ pstrcpy(str, lp_logon_drive());
+ standard_sub_advanced(-1, pwfile->pw_name, "", pwfile->pw_gid, pw_buf->smb_name, str);
+ pdb_set_dir_drive(sam_pass, str, False);
+
+ pstrcpy(str, lp_logon_script());
+ standard_sub_advanced(-1, pwfile->pw_name, "", pwfile->pw_gid, pw_buf->smb_name, str);
+ pdb_set_logon_script(sam_pass, str, False);
+
+ } else {
+ /* lkclXXXX this is OBSERVED behaviour by NT PDCs, enforced here. */
+ /*pdb_set_group_rid (sam_pass, DOMAIN_GROUP_RID_USERS); */
+ }
+
+ passwd_free(&pwfile);
+ }
+
+ pdb_set_username (sam_pass, pw_buf->smb_name);
+ pdb_set_nt_passwd (sam_pass, pw_buf->smb_nt_passwd);
+ pdb_set_lanman_passwd (sam_pass, pw_buf->smb_passwd);
+ pdb_set_acct_ctrl (sam_pass, pw_buf->acct_ctrl);
+ pdb_set_pass_last_set_time (sam_pass, pw_buf->pass_last_set_time);
+ pdb_set_pass_can_change_time (sam_pass, pw_buf->pass_last_set_time, True);
+ pdb_set_domain (sam_pass, lp_workgroup());
+
+ pdb_set_dir_drive (sam_pass, lp_logon_drive(), False);
+
+#if 0 /* JERRY */
+ /* the smbpasswd format doesn't have a must change time field, so
+ we can't get this right. The best we can do is to set this to
+ some time in the future. 21 days seems as reasonable as any other value :)
+ */
+ pdb_set_pass_must_change_time (sam_pass, pw_buf->pass_last_set_time + MAX_PASSWORD_AGE);
+#endif
+ return True;
+}
+
+/*****************************************************************
+ Functions to be implemented by the new passdb API
+ ****************************************************************/
+static BOOL smbpasswd_setsampwent (struct pdb_context *context, BOOL update)
+{
+ struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)context->pdb_selected->private_data;
+
+ smbpasswd_state->pw_file = startsmbfilepwent(smbpasswd_state->smbpasswd_file,
+ update ? PWF_UPDATE : PWF_READ,
+ &(smbpasswd_state->pw_file_lock_depth));
+
+ /* did we fail? Should we try to create it? */
+ if (!smbpasswd_state->pw_file && update && errno == ENOENT)
+ {
+ FILE *fp;
+ /* slprintf(msg_str,msg_str_len-1,
+ "smbpasswd file did not exist - attempting to create it.\n"); */
+ DEBUG(0,("smbpasswd file did not exist - attempting to create it.\n"));
+ fp = sys_fopen(smbpasswd_state->smbpasswd_file, "w");
+ if (fp)
+ {
+ fprintf(fp, "# Samba SMB password file\n");
+ fclose(fp);
+ }
+
+ smbpasswd_state->pw_file = startsmbfilepwent(smbpasswd_state->smbpasswd_file,
+ update ? PWF_UPDATE : PWF_READ,
+ &(smbpasswd_state->pw_file_lock_depth));
+ }
+
+ return (smbpasswd_state->pw_file != NULL);
+}
+
+static void smbpasswd_endsampwent (struct pdb_context *context)
+{
+ struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)context->pdb_selected->private_data;
+ endsmbfilepwent(smbpasswd_state->pw_file, &(smbpasswd_state->pw_file_lock_depth));
+}
+
+/*****************************************************************
+ ****************************************************************/
+static BOOL smbpasswd_getsampwent(struct pdb_context *context, SAM_ACCOUNT *user)
+{
+ struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)context->pdb_selected->private_data;
+ struct smb_passwd *pw_buf=NULL;
+ BOOL done = False;
+ DEBUG(5,("pdb_getsampwent\n"));
+
+ if (user==NULL) {
+ DEBUG(5,("pdb_getsampwent (smbpasswd): user is NULL\n"));
+#if 0
+ smb_panic("NULL pointer passed to getsampwent (smbpasswd)\n");
+#endif
+ return False;
+ }
+
+ while (!done)
+ {
+ /* do we have an entry? */
+ pw_buf = getsmbfilepwent(smbpasswd_state, smbpasswd_state->pw_file);
+ if (pw_buf == NULL)
+ return False;
+
+ /* build the SAM_ACCOUNT entry from the smb_passwd struct.
+ We loop in case the user in the pdb does not exist in
+ the local system password file */
+ if (build_sam_account(smbpasswd_state, user, pw_buf))
+ done = True;
+ }
+
+ DEBUG(5,("getsampwent (smbpasswd): done\n"));
+
+ /* success */
+ return True;
+}
+
+
+/****************************************************************
+ Search smbpasswd file by iterating over the entries. Do not
+ call getpwnam() for unix account information until we have found
+ the correct entry
+ ***************************************************************/
+static BOOL smbpasswd_getsampwnam(struct pdb_context *context, SAM_ACCOUNT *sam_acct, const char *username)
+{
+ struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)context->pdb_selected->private_data;
+ struct smb_passwd *smb_pw;
+ void *fp = NULL;
+ char *domain = NULL;
+ char *user = NULL;
+ fstring name;
+
+ DEBUG(10, ("getsampwnam (smbpasswd): search by name: %s\n", username));
+
+
+ /* break the username from the domain if we have
+ been given a string in the form 'DOMAIN\user' */
+ fstrcpy (name, username);
+ if ((user=strchr_m(name, '\\')) != NULL) {
+ domain = name;
+ *user = '\0';
+ user++;
+ }
+
+ /* if a domain was specified and it wasn't ours
+ then there is no chance of matching */
+ if ( domain && !StrCaseCmp(domain, lp_workgroup()) )
+ return False;
+
+ /* startsmbfilepwent() is used here as we don't want to lookup
+ the UNIX account in the local system password file until
+ we have a match. */
+ fp = startsmbfilepwent(smbpasswd_state->smbpasswd_file, PWF_READ, &(smbpasswd_state->pw_file_lock_depth));
+
+ if (fp == NULL) {
+ DEBUG(0, ("unable to open passdb database.\n"));
+ return False;
+ }
+
+ /* if we have a domain name, then we should map it to a UNIX
+ username first */
+ if ( domain )
+ map_username(user);
+
+ while ( ((smb_pw=getsmbfilepwent(smbpasswd_state, fp)) != NULL)&& (!strequal(smb_pw->smb_name, username)) )
+ /* do nothing....another loop */ ;
+
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+
+
+ /* did we locate the username in smbpasswd */
+ if (smb_pw == NULL)
+ return False;
+
+ DEBUG(10, ("getsampwnam (smbpasswd): found by name: %s\n", smb_pw->smb_name));
+
+ if (!sam_acct) {
+ DEBUG(10,("getsampwnam (smbpasswd): SAM_ACCOUNT is NULL\n"));
+#if 0
+ smb_panic("NULL pointer passed to pdb_getsampwnam\n");
+#endif
+ return False;
+ }
+
+ /* now build the SAM_ACCOUNT */
+ if (!build_sam_account(smbpasswd_state, sam_acct, smb_pw))
+ return False;
+
+ /* success */
+ return True;
+}
+
+
+static BOOL smbpasswd_getsampwrid(struct pdb_context *context, SAM_ACCOUNT *sam_acct,uint32 rid)
+{
+ struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)context->pdb_selected->private_data;
+ struct smb_passwd *smb_pw;
+ void *fp = NULL;
+
+ DEBUG(10, ("pdb_getsampwrid: search by rid: %d\n", rid));
+
+ /* Open the sam password file - not for update. */
+ fp = startsmbfilepwent(smbpasswd_state->smbpasswd_file, PWF_READ, &(smbpasswd_state->pw_file_lock_depth));
+
+ if (fp == NULL) {
+ DEBUG(0, ("unable to open passdb database.\n"));
+ return False;
+ }
+
+ while ( ((smb_pw=getsmbfilepwent(smbpasswd_state, fp)) != NULL) && (pdb_uid_to_user_rid(smb_pw->smb_userid) != rid) )
+ /* do nothing */ ;
+
+ endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth));
+
+
+ /* did we locate the username in smbpasswd */
+ if (smb_pw == NULL)
+ return False;
+
+ DEBUG(10, ("getsampwrid (smbpasswd): found by name: %s\n", smb_pw->smb_name));
+
+ if (!sam_acct) {
+ DEBUG(10,("getsampwrid: (smbpasswd) SAM_ACCOUNT is NULL\n"));
+#if 0
+ smb_panic("NULL pointer passed to pdb_getsampwrid\n");
+#endif
+ return False;
+ }
+
+ /* now build the SAM_ACCOUNT */
+ if (!build_sam_account (smbpasswd_state, sam_acct, smb_pw))
+ return False;
+
+ /* success */
+ return True;
+}
+
+static BOOL smbpasswd_add_sam_account(struct pdb_context *context, const SAM_ACCOUNT *sampass)
+{
+ struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)context->pdb_selected->private_data;
+ struct smb_passwd smb_pw;
+
+ /* convert the SAM_ACCOUNT */
+ if (!build_smb_pass(&smb_pw, sampass)) {
+ return False;
+ }
+
+ /* add the entry */
+ if(!add_smbfilepwd_entry(smbpasswd_state, &smb_pw)) {
+ return False;
+ }
+
+ return True;
+}
+
+static BOOL smbpasswd_update_sam_account(struct pdb_context *context, const SAM_ACCOUNT *sampass)
+{
+ struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)context->pdb_selected->private_data;
+ struct smb_passwd smb_pw;
+
+ /* convert the SAM_ACCOUNT */
+ if (!build_smb_pass(&smb_pw, sampass))
+ return False;
+
+ /* update the entry */
+ if(!mod_smbfilepwd_entry(smbpasswd_state, &smb_pw))
+ return False;
+
+ return True;
+}
+
+static BOOL smbpasswd_delete_sam_account (struct pdb_context *context, const SAM_ACCOUNT *sampass)
+{
+ struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)context->pdb_selected->private_data;
+
+ const char *username = pdb_get_username(sampass);
+
+ return del_smbfilepwd_entry(smbpasswd_state, username);
+}
+
+static void free_private_data(void **vp)
+{
+ struct smbpasswd_privates **privates = (struct smbpasswd_privates**)vp;
+
+ endsmbfilepwent((*privates)->pw_file, &((*privates)->pw_file_lock_depth));
+
+ *privates = NULL;
+ /* No need to free any further, as it is talloc()ed */
+}
+
+
+NTSTATUS pdb_init_smbpasswd(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
+{
+ NTSTATUS nt_status;
+ struct smbpasswd_privates *privates;
+
+ if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
+ return nt_status;
+ }
+
+ (*pdb_method)->name = "smbpasswd";
+
+ (*pdb_method)->setsampwent = smbpasswd_setsampwent;
+ (*pdb_method)->endsampwent = smbpasswd_endsampwent;
+ (*pdb_method)->getsampwent = smbpasswd_getsampwent;
+ (*pdb_method)->getsampwnam = smbpasswd_getsampwnam;
+ (*pdb_method)->getsampwrid = smbpasswd_getsampwrid;
+ (*pdb_method)->add_sam_account = smbpasswd_add_sam_account;
+ (*pdb_method)->update_sam_account = smbpasswd_update_sam_account;
+ (*pdb_method)->delete_sam_account = smbpasswd_delete_sam_account;
+
+ /* Setup private data and free function */
+
+ privates = talloc_zero(pdb_context->mem_ctx, sizeof(struct smbpasswd_privates));
+
+ if (!privates) {
+ DEBUG(0, ("talloc() failed for smbpasswd private_data!\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ /* Store some config details */
+
+ if (location) {
+ privates->smbpasswd_file = talloc_strdup(pdb_context->mem_ctx, location);
+ } else {
+ privates->smbpasswd_file = talloc_strdup(pdb_context->mem_ctx, lp_smb_passwd_file());
+ }
+
+ if (!privates->smbpasswd_file) {
+ DEBUG(0, ("talloc_strdp() failed for storing smbpasswd location!\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ (*pdb_method)->private_data = privates;
+
+ (*pdb_method)->free_private_data = free_private_data;
+
+ return NT_STATUS_OK;
+}
+
+NTSTATUS pdb_init_smbpasswd_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
+{
+ NTSTATUS nt_status;
+ struct smbpasswd_privates *privates;
+
+ if (!NT_STATUS_IS_OK(nt_status = pdb_init_smbpasswd(pdb_context, pdb_method, location))) {
+ return nt_status;
+ }
+
+ (*pdb_method)->name = "smbpasswd_nua";
+
+ privates = (*pdb_method)->private_data;
+
+ privates->permit_non_unix_accounts = True;
+
+ if (!lp_non_unix_account_range(&privates->low_nua_userid, &privates->high_nua_userid)) {
+ DEBUG(0, ("cannot use smbpasswd_nua without 'non unix account range' in smb.conf!\n"));
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ return NT_STATUS_OK;
+}