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/*
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Unix SMB / CIFS implementation .
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Samba utility functions
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Copyright ( C ) Andrew Tridgell 1992 - 1998
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Copyright ( C ) Andrew Bartlett 2001 - 2002
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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 0213 9 , USA .
*/
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/* fork a child process to exec passwd and write to its
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* tty to change a users password . This is running as the
* user who is attempting to change the password .
*/
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/*
* This code was copied / borrowed and stolen from various sources .
* The primary source was the poppasswd . c from the authors of POPMail . This software
* was included as a client to change passwords using the ' passwd ' program
* on the remote machine .
*
* This routine is called by set_user_password ( ) in password . c only if ALLOW_PASSWORD_CHANGE
* is defined in the compiler directives located in the Makefile .
*
* This code has been hacked by Bob Nance ( nance @ niehs . nih . gov ) and Evan Patterson
* ( patters2 @ niehs . nih . gov ) at the National Institute of Environmental Health Sciences
* and rights to modify , distribute or incorporate this change to the CAP suite or
* using it for any other reason are granted , so long as this disclaimer is left intact .
*/
/*
This code was hacked considerably for inclusion in Samba , primarily
by Andrew . Tridgell @ anu . edu . au . The biggest change was the addition
of the " password chat " option , which allows the easy runtime
specification of the expected sequence of events to change a
password .
*/
# include "includes.h"
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extern struct passdb_ops pdb_ops ;
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static NTSTATUS check_oem_password ( const char * user ,
This commit is number 4 of 4.
In particular this commit focuses on:
Actually adding the 'const' to the passdb interface, and the flow-on changes.
Also kill off the 'disp_info' stuff, as its no longer used.
While these changes have been mildly tested, and are pretty small, any
assistance in this is appreciated.
----
These changes introduces a large dose of 'const' to the Samba tree.
There are a number of good reasons to do this:
- I want to allow the SAM_ACCOUNT structure to move from wasteful
pstrings and fstrings to allocated strings. We can't do that if
people are modifying these outputs, as they may well make
assumptions about getting pstrings and fstrings
- I want --with-pam_smbpass to compile with a slightly sane
volume of warnings, currently its pretty bad, even in 2.2
where is compiles at all.
- Tridge assures me that he no longer opposes 'const religion'
based on the ability to #define const the problem away.
- Changed Get_Pwnam(x,y) into two variants (so that the const
parameter can work correctly): - Get_Pwnam(const x) and
Get_Pwnam_Modify(x).
- Reworked smbd/chgpasswd.c to work with these mods, passing
around a 'struct passwd' rather than the modified username
---
This finishes this line of commits off, your tree should now compile again :-)
Andrew Bartlett
(This used to be commit c95f5aeb9327347674589ae313b75bee3bf8e317)
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uchar * lmdata , const uchar * lmhash ,
const uchar * ntdata , const uchar * nthash ,
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SAM_ACCOUNT * * hnd , char * new_passwd ,
int new_passwd_size ) ;
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# if ALLOW_CHANGE_PASSWORD
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static int findpty ( char * * slave )
{
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int master ;
static fstring line ;
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DIR * dirp ;
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char * dpname ;
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# if defined(HAVE_GRANTPT)
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/* Try to open /dev/ptmx. If that fails, fall through to old method. */
if ( ( master = sys_open ( " /dev/ptmx " , O_RDWR , 0 ) ) > = 0 )
{
grantpt ( master ) ;
unlockpt ( master ) ;
* slave = ( char * ) ptsname ( master ) ;
if ( * slave = = NULL )
{
DEBUG ( 0 ,
( " findpty: Unable to create master/slave pty pair. \n " ) ) ;
/* Stop fd leak on error. */
close ( master ) ;
return - 1 ;
}
else
{
DEBUG ( 10 ,
( " findpty: Allocated slave pty %s \n " , * slave ) ) ;
return ( master ) ;
}
}
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# endif /* HAVE_GRANTPT */
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fstrcpy ( line , " /dev/ptyXX " ) ;
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dirp = opendir ( " /dev " ) ;
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if ( ! dirp )
return ( - 1 ) ;
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while ( ( dpname = readdirname ( dirp ) ) ! = NULL )
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{
if ( strncmp ( dpname , " pty " , 3 ) = = 0 & & strlen ( dpname ) = = 5 )
{
DEBUG ( 3 ,
( " pty: try to open %s, line was %s \n " , dpname ,
line ) ) ;
line [ 8 ] = dpname [ 3 ] ;
line [ 9 ] = dpname [ 4 ] ;
if ( ( master = sys_open ( line , O_RDWR , 0 ) ) > = 0 )
{
DEBUG ( 3 , ( " pty: opened %s \n " , line ) ) ;
line [ 5 ] = ' t ' ;
* slave = line ;
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closedir ( dirp ) ;
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return ( master ) ;
}
}
}
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closedir ( dirp ) ;
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return ( - 1 ) ;
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}
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static int dochild ( int master , const char * slavedev , const struct passwd * pass ,
const char * passwordprogram , BOOL as_root )
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{
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int slave ;
struct termios stermios ;
gid_t gid ;
uid_t uid ;
if ( pass = = NULL )
{
DEBUG ( 0 ,
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( " dochild: user doesn't exist in the UNIX password database. \n " ) ) ;
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return False ;
}
gid = pass - > pw_gid ;
uid = pass - > pw_uid ;
gain_root_privilege ( ) ;
/* Start new session - gets rid of controlling terminal. */
if ( setsid ( ) < 0 )
{
DEBUG ( 3 ,
( " Weirdness, couldn't let go of controlling terminal \n " ) ) ;
return ( False ) ;
}
/* Open slave pty and acquire as new controlling terminal. */
if ( ( slave = sys_open ( slavedev , O_RDWR , 0 ) ) < 0 )
{
DEBUG ( 3 , ( " More weirdness, could not open %s \n " , slavedev ) ) ;
return ( False ) ;
}
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# ifdef I_PUSH
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ioctl ( slave , I_PUSH , " ptem " ) ;
ioctl ( slave , I_PUSH , " ldterm " ) ;
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# elif defined(TIOCSCTTY)
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if ( ioctl ( slave , TIOCSCTTY , 0 ) < 0 )
{
DEBUG ( 3 , ( " Error in ioctl call for slave pty \n " ) ) ;
/* return(False); */
}
# endif
/* Close master. */
close ( master ) ;
/* Make slave stdin/out/err of child. */
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if ( sys_dup2 ( slave , STDIN_FILENO ) ! = STDIN_FILENO )
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{
DEBUG ( 3 , ( " Could not re-direct stdin \n " ) ) ;
return ( False ) ;
}
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if ( sys_dup2 ( slave , STDOUT_FILENO ) ! = STDOUT_FILENO )
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{
DEBUG ( 3 , ( " Could not re-direct stdout \n " ) ) ;
return ( False ) ;
}
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if ( sys_dup2 ( slave , STDERR_FILENO ) ! = STDERR_FILENO )
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{
DEBUG ( 3 , ( " Could not re-direct stderr \n " ) ) ;
return ( False ) ;
}
if ( slave > 2 )
close ( slave ) ;
/* Set proper terminal attributes - no echo, canonical input processing,
no map NL to CR / NL on output . */
if ( tcgetattr ( 0 , & stermios ) < 0 )
{
DEBUG ( 3 ,
( " could not read default terminal attributes on pty \n " ) ) ;
return ( False ) ;
}
stermios . c_lflag & = ~ ( ECHO | ECHOE | ECHOK | ECHONL ) ;
stermios . c_lflag | = ICANON ;
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# ifdef ONLCR
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stermios . c_oflag & = ~ ( ONLCR ) ;
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# endif
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if ( tcsetattr ( 0 , TCSANOW , & stermios ) < 0 )
{
DEBUG ( 3 , ( " could not set attributes of pty \n " ) ) ;
return ( False ) ;
}
/* make us completely into the right uid */
if ( ! as_root )
{
become_user_permanently ( uid , gid ) ;
}
DEBUG ( 10 ,
( " Invoking '%s' as password change program. \n " ,
passwordprogram ) ) ;
/* execl() password-change application */
if ( execl ( " /bin/sh " , " sh " , " -c " , passwordprogram , NULL ) < 0 )
{
DEBUG ( 3 , ( " Bad status returned from %s \n " , passwordprogram ) ) ;
return ( False ) ;
}
return ( True ) ;
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}
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static int expect ( int master , char * issue , char * expected )
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{
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pstring buffer ;
int attempts , timeout , nread , len ;
BOOL match = False ;
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for ( attempts = 0 ; attempts < 2 ; attempts + + ) {
if ( ! strequal ( issue , " . " ) ) {
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if ( lp_passwd_chat_debug ( ) )
DEBUG ( 100 , ( " expect: sending [%s] \n " , issue ) ) ;
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if ( ( len = write ( master , issue , strlen ( issue ) ) ) ! = strlen ( issue ) ) {
DEBUG ( 2 , ( " expect: (short) write returned %d \n " , len ) ) ;
return False ;
}
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}
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if ( strequal ( expected , " . " ) )
return True ;
timeout = 2000 ;
nread = 0 ;
buffer [ nread ] = 0 ;
while ( ( len = read_with_timeout ( master , buffer + nread , 1 ,
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sizeof ( buffer ) - nread - 1 ,
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timeout ) ) > 0 ) {
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nread + = len ;
buffer [ nread ] = 0 ;
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{
/* Eat leading/trailing whitespace before match. */
pstring str ;
pstrcpy ( str , buffer ) ;
trim_string ( str , " " , " " ) ;
if ( ( match = ( unix_wild_match ( expected , str ) = = 0 ) ) )
timeout = 200 ;
}
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}
if ( lp_passwd_chat_debug ( ) )
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DEBUG ( 100 , ( " expect: expected [%s] received [%s] match %s \n " ,
expected , buffer , match ? " yes " : " no " ) ) ;
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if ( match )
break ;
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if ( len < 0 ) {
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DEBUG ( 2 , ( " expect: %s \n " , strerror ( errno ) ) ) ;
return False ;
}
}
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DEBUG ( 10 , ( " expect: returning %s \n " , match ? " True " : " False " ) ) ;
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return match ;
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}
static void pwd_sub ( char * buf )
{
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all_string_sub ( buf , " \\ n " , " \n " , 0 ) ;
all_string_sub ( buf , " \\ r " , " \r " , 0 ) ;
all_string_sub ( buf , " \\ s " , " " , 0 ) ;
all_string_sub ( buf , " \\ t " , " \t " , 0 ) ;
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}
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static int talktochild ( int master , const char * seq )
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{
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int count = 0 ;
fstring issue , expected ;
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fstrcpy ( issue , " . " ) ;
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while ( next_token ( & seq , expected , NULL , sizeof ( expected ) ) )
{
pwd_sub ( expected ) ;
count + + ;
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if ( ! expect ( master , issue , expected ) )
{
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DEBUG ( 3 , ( " Response %d incorrect \n " , count ) ) ;
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return False ;
}
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if ( ! next_token ( & seq , issue , NULL , sizeof ( issue ) ) )
fstrcpy ( issue , " . " ) ;
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pwd_sub ( issue ) ;
}
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if ( ! strequal ( issue , " . " ) ) {
/* we have one final issue to send */
fstrcpy ( expected , " . " ) ;
if ( ! expect ( master , issue , expected ) )
return False ;
}
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return ( count > 0 ) ;
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}
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static BOOL chat_with_program ( char * passwordprogram , struct passwd * pass ,
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char * chatsequence , BOOL as_root )
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{
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char * slavedev ;
int master ;
pid_t pid , wpid ;
int wstat ;
BOOL chstat = False ;
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if ( pass = = NULL )
{
DEBUG ( 0 ,
( " chat_with_program: user doesn't exist in the UNIX password database. \n " ) ) ;
return False ;
}
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/* allocate a pseudo-terminal device */
if ( ( master = findpty ( & slavedev ) ) < 0 )
{
DEBUG ( 3 ,
( " Cannot Allocate pty for password change: %s \n " ,
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pass - > pw_name ) ) ;
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return ( False ) ;
}
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/*
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* We need to temporarily stop CatchChild from eating
* SIGCLD signals as it also eats the exit status code . JRA .
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*/
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CatchChildLeaveStatus ( ) ;
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if ( ( pid = sys_fork ( ) ) < 0 )
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{
DEBUG ( 3 ,
( " Cannot fork() child for password change: %s \n " ,
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pass - > pw_name ) ) ;
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close ( master ) ;
CatchChild ( ) ;
return ( False ) ;
}
/* we now have a pty */
if ( pid > 0 )
{ /* This is the parent process */
if ( ( chstat = talktochild ( master , chatsequence ) ) = = False )
{
DEBUG ( 3 ,
( " Child failed to change password: %s \n " ,
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pass - > pw_name ) ) ;
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kill ( pid , SIGKILL ) ; /* be sure to end this process */
}
while ( ( wpid = sys_waitpid ( pid , & wstat , 0 ) ) < 0 )
{
if ( errno = = EINTR )
{
errno = 0 ;
continue ;
}
break ;
}
if ( wpid < 0 )
{
DEBUG ( 3 , ( " The process is no longer waiting! \n \n " ) ) ;
close ( master ) ;
CatchChild ( ) ;
return ( False ) ;
}
/*
* Go back to ignoring children .
*/
CatchChild ( ) ;
close ( master ) ;
if ( pid ! = wpid )
{
DEBUG ( 3 ,
( " We were waiting for the wrong process ID \n " ) ) ;
return ( False ) ;
}
if ( WIFEXITED ( wstat ) = = 0 )
{
DEBUG ( 3 ,
( " The process exited while we were waiting \n " ) ) ;
return ( False ) ;
}
if ( WEXITSTATUS ( wstat ) ! = 0 )
{
DEBUG ( 3 ,
( " The status of the process exiting was %d \n " ,
wstat ) ) ;
return ( False ) ;
}
}
else
{
/* CHILD */
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/*
* Lose any oplock capabilities .
*/
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oplock_set_capability ( False , False ) ;
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/* make sure it doesn't freeze */
alarm ( 20 ) ;
if ( as_root )
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become_root ( ) ;
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DEBUG ( 3 ,
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( " Dochild for user %s (uid=%d,gid=%d) \n " , pass - > pw_name ,
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( int ) getuid ( ) , ( int ) getgid ( ) ) ) ;
chstat =
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dochild ( master , slavedev , pass , passwordprogram ,
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as_root ) ;
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if ( as_root )
unbecome_root ( ) ;
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/*
* The child should never return from dochild ( ) . . . .
*/
DEBUG ( 0 ,
( " chat_with_program: Error: dochild() returned %d \n " ,
chstat ) ) ;
exit ( 1 ) ;
}
if ( chstat )
DEBUG ( 3 ,
( " Password change %ssuccessful for user %s \n " ,
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( chstat ? " " : " un " ) , pass - > pw_name ) ) ;
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return ( chstat ) ;
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}
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BOOL chgpasswd ( const char * name , const char * oldpass , const char * newpass , BOOL as_root )
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{
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pstring passwordprogram ;
pstring chatsequence ;
size_t i ;
size_t len ;
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struct passwd * pass ;
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if ( ! name ) {
DEBUG ( 1 , ( " NULL username specfied to chgpasswd()! \n " ) ) ;
}
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if ( ! oldpass ) {
oldpass = " " ;
}
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DEBUG ( 3 , ( " Password change for user: %s \n " , name ) ) ;
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# if DEBUG_PASSWORD
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DEBUG ( 100 , ( " Passwords: old=%s new=%s \n " , oldpass , newpass ) ) ;
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# endif
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/* Take the passed information and test it for minimum criteria */
/* Minimum password length */
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if ( strlen ( newpass ) < lp_min_passwd_length ( ) ) {
/* too short, must be at least MINPASSWDLENGTH */
DEBUG ( 0 , ( " Password Change: user %s, New password is shorter than minimum password length = %d \n " ,
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name , lp_min_passwd_length ( ) ) ) ;
return ( False ) ; /* inform the user */
}
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/* Password is same as old password */
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if ( strcmp ( oldpass , newpass ) = = 0 ) {
/* don't allow same password */
DEBUG ( 2 , ( " Password Change: %s, New password is same as old \n " , name ) ) ; /* log the attempt */
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return ( False ) ; /* inform the user */
}
/*
* Check the old and new passwords don ' t contain any control
* characters .
*/
len = strlen ( oldpass ) ;
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for ( i = 0 ; i < len ; i + + ) {
if ( iscntrl ( ( int ) oldpass [ i ] ) ) {
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DEBUG ( 0 ,
( " chat_with_program: oldpass contains control characters (disallowed). \n " ) ) ;
return False ;
}
}
len = strlen ( newpass ) ;
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for ( i = 0 ; i < len ; i + + ) {
if ( iscntrl ( ( int ) newpass [ i ] ) ) {
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DEBUG ( 0 ,
( " chat_with_program: newpass contains control characters (disallowed). \n " ) ) ;
return False ;
}
}
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pass = Get_Pwnam ( name ) ;
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# ifdef WITH_PAM
if ( lp_pam_password_change ( ) ) {
BOOL ret ;
if ( as_root )
become_root ( ) ;
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if ( pass ) {
ret = smb_pam_passchange ( pass - > pw_name , oldpass , newpass ) ;
} else {
ret = smb_pam_passchange ( name , oldpass , newpass ) ;
}
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if ( as_root )
unbecome_root ( ) ;
return ret ;
}
# endif
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/* A non-PAM password change just doen't make sense without a valid local user */
if ( pass = = NULL )
{
DEBUG ( 0 ,
( " chgpasswd: user %s doesn't exist in the UNIX password database. \n " ,
name ) ) ;
return False ;
}
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pstrcpy ( passwordprogram , lp_passwd_program ( ) ) ;
pstrcpy ( chatsequence , lp_passwd_chat ( ) ) ;
if ( ! * chatsequence ) {
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DEBUG ( 2 , ( " chgpasswd: Null chat sequence - no password changing \n " ) ) ;
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return ( False ) ;
}
if ( ! * passwordprogram ) {
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DEBUG ( 2 , ( " chgpasswd: Null password program - no password changing \n " ) ) ;
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return ( False ) ;
}
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if ( as_root ) {
/* The password program *must* contain the user name to work. Fail if not. */
if ( strstr ( passwordprogram , " %u " ) = = NULL ) {
DEBUG ( 0 , ( " chgpasswd: Running as root the 'passwd program' parameter *MUST* contain \
the string % % u , and the given string % s does not . \ n " , passwordprogram ));
return False ;
}
}
2000-03-22 00:08:07 +03:00
pstring_sub ( passwordprogram , " %u " , name ) ;
/* note that we do NOT substitute the %o and %n in the password program
as this would open up a security hole where the user could use
a new password containing shell escape characters */
pstring_sub ( chatsequence , " %u " , name ) ;
all_string_sub ( chatsequence , " %o " , oldpass , sizeof ( pstring ) ) ;
all_string_sub ( chatsequence , " %n " , newpass , sizeof ( pstring ) ) ;
return ( chat_with_program
2001-10-29 10:28:32 +03:00
( passwordprogram , pass , chatsequence , as_root ) ) ;
1996-05-04 11:50:46 +04:00
}
1998-05-14 05:30:40 +04:00
# else /* ALLOW_CHANGE_PASSWORD */
2001-05-01 01:05:58 +04:00
2001-10-29 10:28:32 +03:00
BOOL chgpasswd ( const char * name , const char * oldpass , const char * newpass , BOOL as_root )
1996-05-04 11:50:46 +04:00
{
2000-03-22 00:08:07 +03:00
DEBUG ( 0 , ( " Password changing not compiled in (user=%s) \n " , name ) ) ;
return ( False ) ;
1996-05-04 11:50:46 +04:00
}
1998-05-14 05:30:40 +04:00
# endif /* ALLOW_CHANGE_PASSWORD */
1998-01-17 10:08:21 +03:00
/***********************************************************
Code to check the lanman hashed password .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2000-03-22 00:08:07 +03:00
BOOL check_lanman_password ( char * user , uchar * pass1 ,
2000-11-14 02:03:34 +03:00
uchar * pass2 , SAM_ACCOUNT * * hnd )
1998-01-17 10:08:21 +03:00
{
2000-03-22 00:08:07 +03:00
uchar unenc_new_pw [ 16 ] ;
uchar unenc_old_pw [ 16 ] ;
2000-11-14 02:03:34 +03:00
SAM_ACCOUNT * sampass = NULL ;
uint16 acct_ctrl ;
This commit is number 4 of 4.
In particular this commit focuses on:
Actually adding the 'const' to the passdb interface, and the flow-on changes.
Also kill off the 'disp_info' stuff, as its no longer used.
While these changes have been mildly tested, and are pretty small, any
assistance in this is appreciated.
----
These changes introduces a large dose of 'const' to the Samba tree.
There are a number of good reasons to do this:
- I want to allow the SAM_ACCOUNT structure to move from wasteful
pstrings and fstrings to allocated strings. We can't do that if
people are modifying these outputs, as they may well make
assumptions about getting pstrings and fstrings
- I want --with-pam_smbpass to compile with a slightly sane
volume of warnings, currently its pretty bad, even in 2.2
where is compiles at all.
- Tridge assures me that he no longer opposes 'const religion'
based on the ability to #define const the problem away.
- Changed Get_Pwnam(x,y) into two variants (so that the const
parameter can work correctly): - Get_Pwnam(const x) and
Get_Pwnam_Modify(x).
- Reworked smbd/chgpasswd.c to work with these mods, passing
around a 'struct passwd' rather than the modified username
---
This finishes this line of commits off, your tree should now compile again :-)
Andrew Bartlett
(This used to be commit c95f5aeb9327347674589ae313b75bee3bf8e317)
2001-10-29 10:35:11 +03:00
const uint8 * lanman_pw ;
2001-05-04 19:44:27 +04:00
BOOL ret ;
2000-06-23 09:57:48 +04:00
become_root ( ) ;
2001-05-04 19:44:27 +04:00
ret = pdb_getsampwnam ( sampass , user ) ;
2000-06-23 09:57:48 +04:00
unbecome_root ( ) ;
2000-03-22 00:08:07 +03:00
2001-05-04 19:44:27 +04:00
if ( ret = = False ) {
2000-11-14 02:03:34 +03:00
DEBUG ( 0 , ( " check_lanman_password: getsampwnam returned NULL \n " ) ) ;
2001-09-29 17:08:26 +04:00
pdb_free_sam ( & sampass ) ;
2000-03-22 00:08:07 +03:00
return False ;
}
2000-11-14 02:03:34 +03:00
acct_ctrl = pdb_get_acct_ctrl ( sampass ) ;
lanman_pw = pdb_get_lanman_passwd ( sampass ) ;
2000-03-22 00:08:07 +03:00
2001-05-04 19:44:27 +04:00
if ( acct_ctrl & ACB_DISABLED ) {
DEBUG ( 0 , ( " check_lanman_password: account %s disabled. \n " , user ) ) ;
2001-09-29 17:08:26 +04:00
pdb_free_sam ( & sampass ) ;
2000-03-22 00:08:07 +03:00
return False ;
}
2001-09-29 17:08:26 +04:00
if ( lanman_pw = = NULL ) {
if ( acct_ctrl & ACB_PWNOTREQ ) {
/* this saves the pointer for the caller */
* hnd = sampass ;
return True ;
} else {
DEBUG ( 0 , ( " check_lanman_password: no lanman password ! \n " ) ) ;
pdb_free_sam ( & sampass ) ;
return False ;
}
2000-03-22 00:08:07 +03:00
}
/* Get the new lanman hash. */
2000-11-14 02:03:34 +03:00
D_P16 ( lanman_pw , pass2 , unenc_new_pw ) ;
2000-03-22 00:08:07 +03:00
/* Use this to get the old lanman hash. */
D_P16 ( unenc_new_pw , pass1 , unenc_old_pw ) ;
/* Check that the two old passwords match. */
2001-05-04 19:44:27 +04:00
if ( memcmp ( lanman_pw , unenc_old_pw , 16 ) ) {
2000-11-14 02:03:34 +03:00
DEBUG ( 0 , ( " check_lanman_password: old password doesn't match. \n " ) ) ;
2001-09-29 17:08:26 +04:00
pdb_free_sam ( & sampass ) ;
2000-03-22 00:08:07 +03:00
return False ;
}
2000-11-14 02:03:34 +03:00
/* this saves the pointer for the caller */
* hnd = sampass ;
2000-03-22 00:08:07 +03:00
return True ;
1998-01-17 10:08:21 +03:00
}
/***********************************************************
Code to change the lanman hashed password .
It nulls out the NT hashed password as it will
no longer be valid .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2000-11-14 02:03:34 +03:00
BOOL change_lanman_password ( SAM_ACCOUNT * sampass , uchar * pass1 ,
2000-03-22 00:08:07 +03:00
uchar * pass2 )
1998-01-17 10:08:21 +03:00
{
2000-03-22 00:08:07 +03:00
static uchar null_pw [ 16 ] ;
uchar unenc_new_pw [ 16 ] ;
BOOL ret ;
2000-11-14 02:03:34 +03:00
uint16 acct_ctrl ;
This commit is number 4 of 4.
In particular this commit focuses on:
Actually adding the 'const' to the passdb interface, and the flow-on changes.
Also kill off the 'disp_info' stuff, as its no longer used.
While these changes have been mildly tested, and are pretty small, any
assistance in this is appreciated.
----
These changes introduces a large dose of 'const' to the Samba tree.
There are a number of good reasons to do this:
- I want to allow the SAM_ACCOUNT structure to move from wasteful
pstrings and fstrings to allocated strings. We can't do that if
people are modifying these outputs, as they may well make
assumptions about getting pstrings and fstrings
- I want --with-pam_smbpass to compile with a slightly sane
volume of warnings, currently its pretty bad, even in 2.2
where is compiles at all.
- Tridge assures me that he no longer opposes 'const religion'
based on the ability to #define const the problem away.
- Changed Get_Pwnam(x,y) into two variants (so that the const
parameter can work correctly): - Get_Pwnam(const x) and
Get_Pwnam_Modify(x).
- Reworked smbd/chgpasswd.c to work with these mods, passing
around a 'struct passwd' rather than the modified username
---
This finishes this line of commits off, your tree should now compile again :-)
Andrew Bartlett
(This used to be commit c95f5aeb9327347674589ae313b75bee3bf8e317)
2001-10-29 10:35:11 +03:00
const uint8 * pwd ;
2000-03-22 00:08:07 +03:00
2001-05-04 19:44:27 +04:00
if ( sampass = = NULL ) {
2000-11-14 02:03:34 +03:00
DEBUG ( 0 , ( " change_lanman_password: no smb password entry. \n " ) ) ;
2000-03-22 00:08:07 +03:00
return False ;
}
2001-05-04 19:44:27 +04:00
2000-11-14 02:03:34 +03:00
acct_ctrl = pdb_get_acct_ctrl ( sampass ) ;
pwd = pdb_get_lanman_passwd ( sampass ) ;
2000-03-22 00:08:07 +03:00
2001-05-04 19:44:27 +04:00
if ( acct_ctrl & ACB_DISABLED ) {
2000-11-14 02:03:34 +03:00
DEBUG ( 0 , ( " change_lanman_password: account %s disabled. \n " ,
pdb_get_username ( sampass ) ) ) ;
2000-03-22 00:08:07 +03:00
return False ;
}
2001-09-29 17:08:26 +04:00
if ( pwd = = NULL ) {
if ( acct_ctrl & ACB_PWNOTREQ ) {
uchar no_pw [ 14 ] ;
memset ( no_pw , ' \0 ' , 14 ) ;
E_P16 ( no_pw , null_pw ) ;
/* Get the new lanman hash. */
D_P16 ( null_pw , pass2 , unenc_new_pw ) ;
} else {
DEBUG ( 0 , ( " change_lanman_password: no lanman password ! \n " ) ) ;
return False ;
}
} else {
/* Get the new lanman hash. */
D_P16 ( pwd , pass2 , unenc_new_pw ) ;
2000-03-22 00:08:07 +03:00
}
2001-09-29 17:08:26 +04:00
2002-11-02 06:47:48 +03:00
if ( ! pdb_set_lanman_passwd ( sampass , unenc_new_pw , PDB_CHANGED ) ) {
2000-03-22 00:08:07 +03:00
return False ;
}
2002-11-02 06:47:48 +03:00
if ( ! pdb_set_nt_passwd ( sampass , NULL , PDB_CHANGED ) ) {
2001-09-29 17:08:26 +04:00
return False ; /* We lose the NT hash. Sorry. */
}
2000-03-22 00:08:07 +03:00
2001-10-29 10:15:51 +03:00
if ( ! pdb_set_pass_changed_now ( sampass ) ) {
pdb_free_sam ( & sampass ) ;
/* Not quite sure what this one qualifies as, but this will do */
return False ;
}
2000-11-14 02:03:34 +03:00
/* Now flush the sam_passwd struct to persistent storage */
2000-06-23 09:57:48 +04:00
become_root ( ) ;
This is another *BIG* change...
Samba now features a pluggable passdb interface, along the same lines as the
one in use in the auth subsystem. In this case, only one backend may be active
at a time by the 'normal' interface, and only one backend per passdb_context is
permitted outside that.
This pluggable interface is designed to allow any number of passdb backends to
be compiled in, with the selection at runtime. The 'passdb backend' paramater
has been created (and documented!) to support this.
As such, configure has been modfied to allow (for example) --with-ldap and the
old smbpasswd to be selected at the same time.
This patch also introduces two new backends: smbpasswd_nua and tdbsam_nua.
These two backends accept 'non unix accounts', where the user does *not* exist
in /etc/passwd. These accounts' don't have UIDs in the unix sense, but to
avoid conflicts in the algroitmic mapping of RIDs, they use the values
specified in the 'non unix account range' paramter - in the same way as the
winbind ranges are specifed.
While I was at it, I cleaned up some of the code in pdb_tdb (code copied
directly from smbpasswd and not really considered properly). Most of this was
to do with % macro expansion on stored data. It isn't easy to get the macros
into the tdb, and the first password change will 'expand' them. tdbsam needs
to use a similar system to pdb_ldap in this regard.
This patch only makes minor adjustments to pdb_nisplus and pdb_ldap, becouse I
don't have the test facilities for these. I plan to incoroprate at least
pdb_ldap into this scheme after consultation with Jerry.
Each (converted) passdb module now no longer has any 'static' variables, and
only exports 1 init function outside its .c file.
The non-unix-account support in this patch has been proven! It is now possible
to join a win2k machine to a Samba PDC without an account in /etc/passwd!
Other changes:
Minor interface adjustments:
pdb_delete_sam_account() now takes a SAM_ACCOUNT, not a char*.
pdb_update_sam_account() no longer takes the 'override' argument that was being
ignored so often (every other passdb backend). Extra checks have been added in
some places.
Minor code changes:
smbpasswd no longer attempts to initialise the passdb at startup, this is
now done on first use.
pdbedit has lost some of its 'machine account' logic, as this behaviour is now
controlled by the passdb subsystem directly.
The samr subsystem no longer calls 'local password change', but does the pdb
interactions directly. This allow the ACB_ flags specifed to be transferred
direct to the backend, without interference.
Doco:
I've updated the doco to reflect some of the changes, and removed some paramters
no longer applicable to HEAD.
(This used to be commit ff354c99c585068af6dc1ff35a1f109a806b326b)
2002-01-20 17:30:58 +03:00
ret = pdb_update_sam_account ( sampass ) ;
2000-06-23 09:57:48 +04:00
unbecome_root ( ) ;
2000-03-22 00:08:07 +03:00
return ret ;
1998-01-17 10:08:21 +03:00
}
1998-03-18 22:07:53 +03:00
/***********************************************************
1998-10-19 21:32:10 +04:00
Code to check and change the OEM hashed password .
1998-03-18 22:07:53 +03:00
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2003-01-04 11:45:17 +03:00
NTSTATUS pass_oem_change ( char * user ,
uchar * lmdata , uchar * lmhash ,
uchar * ntdata , uchar * nthash )
1998-03-18 22:07:53 +03:00
{
1998-10-19 21:32:10 +04:00
fstring new_passwd ;
2002-01-17 11:45:58 +03:00
const char * unix_user ;
2000-11-14 02:03:34 +03:00
SAM_ACCOUNT * sampass = NULL ;
2003-01-04 11:45:17 +03:00
NTSTATUS nt_status
= check_oem_password ( user , lmdata , lmhash , ntdata , nthash ,
& sampass , new_passwd , sizeof ( new_passwd ) ) ;
2003-01-05 08:11:02 +03:00
if ( ! NT_STATUS_IS_OK ( nt_status ) )
2003-01-04 11:45:17 +03:00
return nt_status ;
1998-10-19 21:32:10 +04:00
/*
* At this point we have the new case - sensitive plaintext
* password in the fstring new_passwd . If we wanted to synchronise
* with UNIX passwords we would call a UNIX password changing
* function here . However it would have to be done as root
* as the plaintext of the old users password is not
* available . JRA .
*/
2002-01-17 11:45:58 +03:00
unix_user = pdb_get_username ( sampass ) ;
2003-01-04 11:45:17 +03:00
nt_status = change_oem_password ( sampass , NULL , new_passwd ) ;
1998-10-19 21:32:10 +04:00
memset ( new_passwd , 0 , sizeof ( new_passwd ) ) ;
2001-09-29 17:08:26 +04:00
pdb_free_sam ( & sampass ) ;
2001-05-04 19:44:27 +04:00
2003-01-04 11:45:17 +03:00
return nt_status ;
1998-10-19 21:32:10 +04:00
}
1998-03-18 22:07:53 +03:00
1998-10-19 21:32:10 +04:00
/***********************************************************
Code to check the OEM hashed password .
1998-03-18 22:07:53 +03:00
1998-10-19 21:32:10 +04:00
this function ignores the 516 byte nt OEM hashed password
but does use the lm OEM password to check the nt hashed - hash .
1998-03-18 22:07:53 +03:00
1998-10-19 21:32:10 +04:00
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2003-01-07 00:48:46 +03:00
2003-01-04 11:45:17 +03:00
static NTSTATUS check_oem_password ( const char * user ,
This commit is number 4 of 4.
In particular this commit focuses on:
Actually adding the 'const' to the passdb interface, and the flow-on changes.
Also kill off the 'disp_info' stuff, as its no longer used.
While these changes have been mildly tested, and are pretty small, any
assistance in this is appreciated.
----
These changes introduces a large dose of 'const' to the Samba tree.
There are a number of good reasons to do this:
- I want to allow the SAM_ACCOUNT structure to move from wasteful
pstrings and fstrings to allocated strings. We can't do that if
people are modifying these outputs, as they may well make
assumptions about getting pstrings and fstrings
- I want --with-pam_smbpass to compile with a slightly sane
volume of warnings, currently its pretty bad, even in 2.2
where is compiles at all.
- Tridge assures me that he no longer opposes 'const religion'
based on the ability to #define const the problem away.
- Changed Get_Pwnam(x,y) into two variants (so that the const
parameter can work correctly): - Get_Pwnam(const x) and
Get_Pwnam_Modify(x).
- Reworked smbd/chgpasswd.c to work with these mods, passing
around a 'struct passwd' rather than the modified username
---
This finishes this line of commits off, your tree should now compile again :-)
Andrew Bartlett
(This used to be commit c95f5aeb9327347674589ae313b75bee3bf8e317)
2001-10-29 10:35:11 +03:00
uchar * lmdata , const uchar * lmhash ,
const uchar * ntdata , const uchar * nthash ,
2001-09-10 15:23:41 +04:00
SAM_ACCOUNT * * hnd , char * new_passwd ,
int new_passwd_size )
1998-10-19 21:32:10 +04:00
{
1998-10-21 20:58:34 +04:00
static uchar null_pw [ 16 ] ;
static uchar null_ntpw [ 16 ] ;
2000-11-14 02:03:34 +03:00
SAM_ACCOUNT * sampass = NULL ;
This commit is number 4 of 4.
In particular this commit focuses on:
Actually adding the 'const' to the passdb interface, and the flow-on changes.
Also kill off the 'disp_info' stuff, as its no longer used.
While these changes have been mildly tested, and are pretty small, any
assistance in this is appreciated.
----
These changes introduces a large dose of 'const' to the Samba tree.
There are a number of good reasons to do this:
- I want to allow the SAM_ACCOUNT structure to move from wasteful
pstrings and fstrings to allocated strings. We can't do that if
people are modifying these outputs, as they may well make
assumptions about getting pstrings and fstrings
- I want --with-pam_smbpass to compile with a slightly sane
volume of warnings, currently its pretty bad, even in 2.2
where is compiles at all.
- Tridge assures me that he no longer opposes 'const religion'
based on the ability to #define const the problem away.
- Changed Get_Pwnam(x,y) into two variants (so that the const
parameter can work correctly): - Get_Pwnam(const x) and
Get_Pwnam_Modify(x).
- Reworked smbd/chgpasswd.c to work with these mods, passing
around a 'struct passwd' rather than the modified username
---
This finishes this line of commits off, your tree should now compile again :-)
Andrew Bartlett
(This used to be commit c95f5aeb9327347674589ae313b75bee3bf8e317)
2001-10-29 10:35:11 +03:00
const uint8 * lanman_pw , * nt_pw ;
2000-11-14 02:03:34 +03:00
uint16 acct_ctrl ;
1999-12-13 16:27:58 +03:00
int new_pw_len ;
1998-10-19 21:32:10 +04:00
uchar new_ntp16 [ 16 ] ;
uchar unenc_old_ntpw [ 16 ] ;
uchar new_p16 [ 16 ] ;
uchar unenc_old_pw [ 16 ] ;
1998-10-21 20:28:44 +04:00
char no_pw [ 2 ] ;
2001-05-04 19:44:27 +04:00
BOOL ret ;
1998-10-21 20:58:34 +04:00
1998-10-19 21:32:10 +04:00
BOOL nt_pass_set = ( ntdata ! = NULL & & nthash ! = NULL ) ;
2003-01-08 10:02:21 +03:00
* hnd = NULL ;
2001-05-04 19:44:27 +04:00
pdb_init_sam ( & sampass ) ;
2000-06-23 09:57:48 +04:00
become_root ( ) ;
2001-05-04 19:44:27 +04:00
ret = pdb_getsampwnam ( sampass , user ) ;
2000-06-23 09:57:48 +04:00
unbecome_root ( ) ;
1998-10-19 21:32:10 +04:00
2001-05-04 19:44:27 +04:00
if ( ret = = False ) {
2000-03-22 00:08:07 +03:00
DEBUG ( 0 , ( " check_oem_password: getsmbpwnam returned NULL \n " ) ) ;
2003-01-07 00:48:46 +03:00
pdb_free_sam ( & sampass ) ;
2003-01-04 11:45:17 +03:00
return NT_STATUS_WRONG_PASSWORD ;
/*
TODO : check what Win2k returns for this :
return NT_STATUS_NO_SUCH_USER ;
*/
1998-10-19 21:32:10 +04:00
}
2001-05-04 19:44:27 +04:00
2000-11-14 02:03:34 +03:00
acct_ctrl = pdb_get_acct_ctrl ( sampass ) ;
2001-05-04 19:44:27 +04:00
if ( acct_ctrl & ACB_DISABLED ) {
2000-11-14 02:03:34 +03:00
DEBUG ( 0 , ( " check_lanman_password: account %s disabled. \n " , user ) ) ;
2003-01-07 00:48:46 +03:00
pdb_free_sam ( & sampass ) ;
2003-01-04 11:45:17 +03:00
return NT_STATUS_ACCOUNT_DISABLED ;
1998-10-19 21:32:10 +04:00
}
/* construct a null password (in case one is needed */
no_pw [ 0 ] = 0 ;
no_pw [ 1 ] = 0 ;
nt_lm_owf_gen ( no_pw , null_ntpw , null_pw ) ;
2000-11-14 02:03:34 +03:00
/* save pointers to passwords so we don't have to keep looking them up */
lanman_pw = pdb_get_lanman_passwd ( sampass ) ;
2003-01-07 00:48:46 +03:00
nt_pw = pdb_get_nt_passwd ( sampass ) ;
2000-11-14 02:03:34 +03:00
1998-10-19 21:32:10 +04:00
/* check for null passwords */
2001-05-04 19:44:27 +04:00
if ( lanman_pw = = NULL ) {
2001-09-29 17:08:26 +04:00
if ( ! ( acct_ctrl & ACB_PWNOTREQ ) ) {
2000-11-14 02:03:34 +03:00
DEBUG ( 0 , ( " check_oem_password: no lanman password ! \n " ) ) ;
2003-01-07 00:48:46 +03:00
pdb_free_sam ( & sampass ) ;
2003-01-04 11:45:17 +03:00
return NT_STATUS_WRONG_PASSWORD ;
1998-10-19 21:32:10 +04:00
}
}
2001-09-29 17:08:26 +04:00
2001-05-04 19:44:27 +04:00
if ( pdb_get_nt_passwd ( sampass ) = = NULL & & nt_pass_set ) {
2001-09-29 17:08:26 +04:00
if ( ! ( acct_ctrl & ACB_PWNOTREQ ) ) {
2000-11-14 02:03:34 +03:00
DEBUG ( 0 , ( " check_oem_password: no ntlm password ! \n " ) ) ;
2003-01-07 00:48:46 +03:00
pdb_free_sam ( & sampass ) ;
2003-01-04 11:45:17 +03:00
return NT_STATUS_WRONG_PASSWORD ;
1998-10-19 21:32:10 +04:00
}
}
2001-09-29 17:08:26 +04:00
1998-10-19 21:32:10 +04:00
/*
* Call the hash function to get the new password .
*/
This commit is number 4 of 4.
In particular this commit focuses on:
Actually adding the 'const' to the passdb interface, and the flow-on changes.
Also kill off the 'disp_info' stuff, as its no longer used.
While these changes have been mildly tested, and are pretty small, any
assistance in this is appreciated.
----
These changes introduces a large dose of 'const' to the Samba tree.
There are a number of good reasons to do this:
- I want to allow the SAM_ACCOUNT structure to move from wasteful
pstrings and fstrings to allocated strings. We can't do that if
people are modifying these outputs, as they may well make
assumptions about getting pstrings and fstrings
- I want --with-pam_smbpass to compile with a slightly sane
volume of warnings, currently its pretty bad, even in 2.2
where is compiles at all.
- Tridge assures me that he no longer opposes 'const religion'
based on the ability to #define const the problem away.
- Changed Get_Pwnam(x,y) into two variants (so that the const
parameter can work correctly): - Get_Pwnam(const x) and
Get_Pwnam_Modify(x).
- Reworked smbd/chgpasswd.c to work with these mods, passing
around a 'struct passwd' rather than the modified username
---
This finishes this line of commits off, your tree should now compile again :-)
Andrew Bartlett
(This used to be commit c95f5aeb9327347674589ae313b75bee3bf8e317)
2001-10-29 10:35:11 +03:00
SamOEMhash ( lmdata , lanman_pw , 516 ) ;
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/*
* The length of the new password is in the last 4 bytes of
* the data buffer .
*/
new_pw_len = IVAL ( lmdata , 512 ) ;
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if ( new_pw_len < 0 | | new_pw_len > new_passwd_size - 1 ) {
DEBUG ( 0 , ( " check_oem_password: incorrect password length (%d). \n " , new_pw_len ) ) ;
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pdb_free_sam ( & sampass ) ;
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return NT_STATUS_WRONG_PASSWORD ;
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}
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if ( nt_pass_set ) {
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/*
* nt passwords are in unicode
*/
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pull_ucs2 ( NULL , new_passwd ,
( const smb_ucs2_t * ) & lmdata [ 512 - new_pw_len ] ,
new_passwd_size , new_pw_len , 0 ) ;
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} else {
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memcpy ( new_passwd , & lmdata [ 512 - new_pw_len ] , new_pw_len ) ;
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new_passwd [ new_pw_len ] = 0 ;
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}
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/*
* To ensure we got the correct new password , hash it and
* use it as a key to test the passed old password .
*/
nt_lm_owf_gen ( new_passwd , new_ntp16 , new_p16 ) ;
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if ( ! nt_pass_set ) {
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/*
* Now use new_p16 as the key to see if the old
* password matches .
*/
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D_P16 ( new_p16 , lmhash , unenc_old_pw ) ;
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if ( memcmp ( lanman_pw , unenc_old_pw , 16 ) ) {
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DEBUG ( 0 , ( " check_oem_password: old lm password doesn't match. \n " ) ) ;
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pdb_free_sam ( & sampass ) ;
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return NT_STATUS_WRONG_PASSWORD ;
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}
# ifdef DEBUG_PASSWORD
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DEBUG ( 100 ,
( " check_oem_password: password %s ok \n " , new_passwd ) ) ;
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# endif
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* hnd = sampass ;
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return NT_STATUS_OK ;
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}
/*
* Now use new_p16 as the key to see if the old
* password matches .
*/
D_P16 ( new_ntp16 , lmhash , unenc_old_pw ) ;
D_P16 ( new_ntp16 , nthash , unenc_old_ntpw ) ;
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if ( memcmp ( lanman_pw , unenc_old_pw , 16 ) ) {
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DEBUG ( 0 , ( " check_oem_password: old lm password doesn't match. \n " ) ) ;
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pdb_free_sam ( & sampass ) ;
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return NT_STATUS_WRONG_PASSWORD ;
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}
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if ( memcmp ( nt_pw , unenc_old_ntpw , 16 ) ) {
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DEBUG ( 0 , ( " check_oem_password: old nt password doesn't match. \n " ) ) ;
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pdb_free_sam ( & sampass ) ;
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return NT_STATUS_WRONG_PASSWORD ;
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}
# ifdef DEBUG_PASSWORD
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DEBUG ( 100 , ( " check_oem_password: password %s ok \n " , new_passwd ) ) ;
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# endif
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* hnd = sampass ;
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return NT_STATUS_OK ;
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}
/***********************************************************
Code to change the oem password . Changes both the lanman
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and NT hashes . Old_passwd is almost always NULL .
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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NTSTATUS change_oem_password ( SAM_ACCOUNT * hnd , char * old_passwd , char * new_passwd )
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{
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BOOL ret ;
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uint32 min_len ;
if ( time ( NULL ) < pdb_get_pass_can_change_time ( hnd ) ) {
DEBUG ( 1 , ( " user %s cannot change password now, must wait until %s \n " ,
pdb_get_username ( hnd ) , http_timestring ( pdb_get_pass_can_change_time ( hnd ) ) ) ) ;
return NT_STATUS_PASSWORD_RESTRICTION ;
}
if ( account_policy_get ( AP_MIN_PASSWORD_LEN , & min_len ) & & ( strlen ( new_passwd ) < min_len ) ) {
DEBUG ( 1 , ( " user %s cannot change password - password too short \n " ,
pdb_get_username ( hnd ) ) ) ;
DEBUGADD ( 1 , ( " account policy min password len = %d \n " , min_len ) ) ;
return NT_STATUS_PASSWORD_RESTRICTION ;
/* return NT_STATUS_PWD_TOO_SHORT; */
}
/* Take the passed information and test it for minimum criteria */
/* Minimum password length */
if ( strlen ( new_passwd ) < lp_min_passwd_length ( ) ) {
/* too short, must be at least MINPASSWDLENGTH */
DEBUG ( 1 , ( " Password Change: user %s, New password is shorter than minimum password length = %d \n " ,
pdb_get_username ( hnd ) , lp_min_passwd_length ( ) ) ) ;
return NT_STATUS_PASSWORD_RESTRICTION ;
/* return NT_STATUS_PWD_TOO_SHORT; */
}
/* TODO: Add cracklib support here */
/*
* If unix password sync was requested , attempt to change
* the / etc / passwd database first . Return failure if this cannot
* be done .
*
* This occurs before the oem change , becouse we don ' t want to
* update it if chgpasswd failed .
*
* Conditional on lp_unix_password_sync ( ) becouse we don ' t want
* to touch the unix db unless we have admin permission .
*/
if ( lp_unix_password_sync ( ) & & IS_SAM_UNIX_USER ( hnd )
& & ! chgpasswd ( pdb_get_username ( hnd ) ,
old_passwd , new_passwd , False ) ) {
return NT_STATUS_ACCESS_DENIED ;
}
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if ( ! pdb_set_plaintext_passwd ( hnd , new_passwd ) ) {
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return NT_STATUS_ACCESS_DENIED ;
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}
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/* Now write it into the file. */
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become_root ( ) ;
This is another *BIG* change...
Samba now features a pluggable passdb interface, along the same lines as the
one in use in the auth subsystem. In this case, only one backend may be active
at a time by the 'normal' interface, and only one backend per passdb_context is
permitted outside that.
This pluggable interface is designed to allow any number of passdb backends to
be compiled in, with the selection at runtime. The 'passdb backend' paramater
has been created (and documented!) to support this.
As such, configure has been modfied to allow (for example) --with-ldap and the
old smbpasswd to be selected at the same time.
This patch also introduces two new backends: smbpasswd_nua and tdbsam_nua.
These two backends accept 'non unix accounts', where the user does *not* exist
in /etc/passwd. These accounts' don't have UIDs in the unix sense, but to
avoid conflicts in the algroitmic mapping of RIDs, they use the values
specified in the 'non unix account range' paramter - in the same way as the
winbind ranges are specifed.
While I was at it, I cleaned up some of the code in pdb_tdb (code copied
directly from smbpasswd and not really considered properly). Most of this was
to do with % macro expansion on stored data. It isn't easy to get the macros
into the tdb, and the first password change will 'expand' them. tdbsam needs
to use a similar system to pdb_ldap in this regard.
This patch only makes minor adjustments to pdb_nisplus and pdb_ldap, becouse I
don't have the test facilities for these. I plan to incoroprate at least
pdb_ldap into this scheme after consultation with Jerry.
Each (converted) passdb module now no longer has any 'static' variables, and
only exports 1 init function outside its .c file.
The non-unix-account support in this patch has been proven! It is now possible
to join a win2k machine to a Samba PDC without an account in /etc/passwd!
Other changes:
Minor interface adjustments:
pdb_delete_sam_account() now takes a SAM_ACCOUNT, not a char*.
pdb_update_sam_account() no longer takes the 'override' argument that was being
ignored so often (every other passdb backend). Extra checks have been added in
some places.
Minor code changes:
smbpasswd no longer attempts to initialise the passdb at startup, this is
now done on first use.
pdbedit has lost some of its 'machine account' logic, as this behaviour is now
controlled by the passdb subsystem directly.
The samr subsystem no longer calls 'local password change', but does the pdb
interactions directly. This allow the ACB_ flags specifed to be transferred
direct to the backend, without interference.
Doco:
I've updated the doco to reflect some of the changes, and removed some paramters
no longer applicable to HEAD.
(This used to be commit ff354c99c585068af6dc1ff35a1f109a806b326b)
2002-01-20 17:30:58 +03:00
ret = pdb_update_sam_account ( hnd ) ;
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unbecome_root ( ) ;
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if ( ! ret ) {
return NT_STATUS_ACCESS_DENIED ;
}
return NT_STATUS_OK ;
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}