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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)
committed in auth/auth_compat.c and use the new version to make the plaintext
password change slightly sane... (Needs testing).
Andrew Bartlett
(This used to be commit 996d0cd89cf9da5e9749f136f013cc4a8b977ee0)
Samba (ab)uses the returns from getpwnam() a lot - in particular it keeps
them around for a long time - often past the next call...
This adds a getpwnam_alloc and a getpwuid_alloc to the collection.
These function as expected, returning a malloced structure that can be
free()ed with passwd_free(&passwd).
This patch also cuts down on the number of calls to getpwnam - mostly by
taking advantage of the fact that the passdb interface is already
case-insensiteve.
With this patch most of the recursive cases have been removed (that I know
of) and the problems are reduced further by not using the sys_ interface
in the new code. This means that pointers to the cache won't be affected.
(This is a tempoary HACK, I intend to kill the password cache entirly).
The only change I'm a little worried about is the change to
rpc_server/srv_samr_nt.c for private groups. In this case we are getting
groups from the new group mapping DB. Do we still need to check for private
groups? I've toned down the check to a case sensitve match with the new code,
but we might be able to kill it entirly.
I've also added a make_modifyable_passwd() function, that copies a passwd
struct into the form that the old sys_getpw* code provided. As far as I can
tell this is only actually used in the pass_check.c crazies, where I moved
the final 'special case' for shadow passwords (out of _Get_Pwnam()).
The matching case for getpwent() is dealt with already, in lib/util_getent.c
Also included in here is a small change to register the [homes] share at vuid
creation rather than just in one varient of the session setup. (This picks
up the SPNEGO cases). The home directory is now stored on the vuid, and I
am hoping this might provide a saner way to do %H substitions.
TODO: Kill off remaining Get_Pwnam_Modify calls (they are not needed), change
the remaining sys_getpwnam() callers to use getpwnam_alloc() and move
Get_Pwnam to return an allocated struct.
Andrew Bartlett
(This used to be commit 1d86c7f94230bc53daebd4d2cd829da6292e05da)
If you do not have one more expect than issue when talking to the passwd
program you will not send the last issue.
(This used to be commit 8aafec95cba0e8a002d20c4c0055a01690879f7a)
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)
In particular this commit focuses on:
Changing the Get_Pwnam code so that it can work in a const-enforced
environment.
While these changes have been mildly tested, and are pretty small, any
assistance in this is appreciated.
----
These changes allow for 'const' in 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 used to be commit e7634f81c5116ff4addfb7e495f54b6bb78e8f77)
In particular this commit focusses on:
Adding the new 'pass changed now' helper function.
While these changes have been mildly tested, and are pretty small, any
assistance in this is appreciated.
(This used to be commit a8971a5448cf6d203b379c3ed01e331d5263c9ee)
The problem is we were trying to use mask_match as a generic
wildcard matcher for UNIX strings (like the password prompts).
We can't do that - we need a unix_wild_match (re-added into lib/util.c)
as the ms_fnmatch semantics for empty strings are completely wrong.
This caused partial reads to be accepted as correct passwd change
responses when they were not....
Also added paranioa test to stop passwd change being done as root
with no %u in the passwd program string.
Jeremy.
(This used to be commit 9333bbeb7627c8b21a3eaeae1683c34e17d14bf0)
The big one is a global change to allow us to NULLify the free'ed pointer to a
former passdb object. This was done to allow idra's SAFE_FREE() macro to do
its magic, and to satisfy the input test in pdb_init_sam() for a NULL pointer
to start with.
This NULL pointer test was what was breaking the adding of accounts up until
now, and this code has been reworked to avoid duplicating work - I hope this
will avoid a similar mess-up in future.
Finally, I fixed a few nasty bugs where the pdb_ fuctions's return codes were
being ignored. Some of these functions malloc() and are permitted to fail.
Also, this caught a nasty bug where pdb_set_lanman_password(sam, NULL) acheived
precisely didilly-squat, just returning False. Now that we check the returns
this bug was spotted. This could allow different LM and NT passwords.
- the pdbedit code needs to start checking these too, but I havn't had a
chance to fix it.
I have also fixed up where some of the password changing code was using the
pdb_set functions to store *internal* data. I assume this is from a previous
lot of mass conversion work...
Most likally (and going on past experience) I have missed somthing, probably in
the LanMan password change code which I havn't yet been able to test, but this
lot is in much better shape than it was before.
If all this is too much to swallow (particularly for 2.2.2) then just adding a
sam_pass = NULL to the particular line of passdb.c should do the trick for the
ovbious bug.
Andrew Bartlett
(This used to be commit 762c8758a7869809d89b4da9c2a5249678942930)
This commit gets rid of all our old codepage handling and replaces it with
iconv. All internal strings in Samba are now in "unix" charset, which may
be multi-byte. See internals.doc and my posting to samba-technical for
a more complete explanation.
(This used to be commit debb471267960e56005a741817ebd227ecfc512a)
o sed 's/pdb_clear_sam/pdb_free_sam/g'
o add pdb_reset_sam()
o password changing should be ok now as well.
(This used to be commit 96d0e7c3301ad990f6c83b9c216720cb32661fb5)
I did some basic tests but I have probably broken something. Notably the
password changing. So don't cry ;-)
J.F.
(This used to be commit a4a4c02b12f030a3b9e6225b999c90689dfc4719)
the pam password change code to ensure that existing and working password
chat scripts don't break with 2.2.1. PAM password changing has to be explicitly
requested.
Allowed wildcards in pam password change matching (matches password chat
script matching). Had to add const (sorry Tim :-) to ms_fnmatch() to
stop warnings. Don't worry - the const changes are isolated and don't
cause any other warnings :-).
Jeremy.
(This used to be commit 47b4d82536c09bffe3a0d9917fa31d935f1be7d8)
remove global static PAM variables, and to tidy up the PAM internals code.
Now looks like the rest of Samba.
Still needs testing.
Jeremy.
(This used to be commit 1648ac64a75de74d1a1575eb49cccc4f75488bfa)
RPC code to merge with new passdb code.
Currently rpcclient doesn't compile. I'm working on it...
Jeremy.
(This used to be commit 0be41d5158ea4e645e93e8cd30617c038416e549)
Currently the only backend which works is smbpasswd (tdb, LDAP, and NIS+)
are broken, but they were somewhat broken before. :)
The following functions implement the storage manipulation interface
/*The following definitions come from passdb/pdb_smbpasswd.c */
BOOL pdb_setsampwent (BOOL update);
void pdb_endsampwent (void);
SAM_ACCOUNT* pdb_getsampwent (void);
SAM_ACCOUNT* pdb_getsampwnam (char *username);
SAM_ACCOUNT* pdb_getsampwuid (uid_t uid);
SAM_ACCOUNT* pdb_getsampwrid (uint32 rid);
BOOL pdb_add_sam_account (SAM_ACCOUNT *sampass);
BOOL pdb_update_sam_account (SAM_ACCOUNT *sampass, BOOL override);
BOOL pdb_delete_sam_account (char* username);
There is also a host of pdb_set..() and pdb_get..() functions for
manipulating SAM_ACCOUNT struct members. Note that the struct
passdb_ops {} has gone away. Also notice that struct smb_passwd
(formally in smb.h) has been moved to passdb/pdb_smbpasswd.c
and is not accessed outisde of static internal functions in this
file. All local password searches should make use of the the SAM_ACCOUNT
struct and the previously mentioned functions.
I'll write some documentation for this later. The next step is to fix
the TDB passdb backend, then work on spliting the backends out into
share libraries, and finally get the LDAP backend going.
What works and may not:
o domain logons from Win9x works
o domain logons from WinNT 4 works
o user and group enumeration
as implemented by Tim works
o file and print access works
o changing password from
Win9x & NT ummm...i'll fix this tonight :)
If I broke anything else, just yell and I'll fix it. I think it
should be fairly quite.
-- jerry
(This used to be commit 0b92d0838ebdbe24f34f17e313ecbf61a0301389)
this adds "#define OLD_NTDOMAIN 1" in lots of places. Don't panic -
this isn't permanent, it should go after another few merge steps have
been done
(This used to be commit 92109d7b3c06f240452d39f669ecb8c9c86ab610)
call to ms_fnmatch(). This also removes all the Win9X semantics stuff
and a bunch of other associated cruft.
- moved the stat cache code into statcache.c
- fixed the uint16 alignment requirements of ascii_to_unistr() and
unistr_to_ascii()
- trans2 SMB_FIND_FILE_BOTH_DIRECTORY_INFO returns the short name as
unicode always (at least thats what NT4 does)
- fixed some errors in the in-memory tdb code. Still ugly, but doesn't
crash as much
(This used to be commit 03e9cea004bbba72161a5323cf3b4556c94aed8e)
configure configure.in include/config.h.in: Added <sys/un.h> autoconf
code for Luke's UNIX domain sockets code.
Jeremy.
(This used to be commit 210d61db08136122f51a93428607fccd582c9e7d)
is to pass DOMAIN_NAME$ and SEC_CHAN_DOMAIN instead of WKSTA_NAME$ and
SEC_CHAN_WKSTA.
modified check_domain_security to determine if domain name is own domain,
and to use wksta trust account if so, otherwise check "trusting domains"
parameter and use inter-domain trust account if so, otherwise return
False.
(This used to be commit 97ec74e1fa99d773812d2df402251fafb76b181c)
weird unixware stuff) into _Get_Pwnam() to fix a memory allocation bug.
Note that the Get_Pwnam() function now returns a const struct passwd *
as a hint to other developers not to change entries in the struct
passwd.
(This used to be commit 36d7cb4ccc42268e8e6a7b783c945d1853624958)
connection_struct in a call to OpenDir.
JF, you fixed a similar bug in printing/nt_printing.c, I think your fix
is incorrect as global configuration files should not go through a VFS.
(This used to be commit 0e0c310a3ea102c61e74b604bcc793a82554a828)
----------------------------
- removed DOM_RID4
- removed SAMR_UNKNOWN_32
- added SAMR_SET_USERINFO (opcode 0x32)
- added level 0x1 to SAMR_QUERY_DOM_INFO (needed for create user)
- fixed pwdb_gethexpwd() it was failing on XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
- added mod_sam21pwd_entry()
- preparing to call mod_sam21pwd_entry()
- added "user session key" to user_struct.dc. this is md4(nt#) and is
needed to decode user's clear-text passwords in SAMR_SET_USERINFO.
- split code out in chgpasswd.c to decode 516 byte password buffers.
(This used to be commit 2e58ed742435befe419aa366c4052019fede8c23)
root if the ACB_PWLOCK bit is set (on a per-user basis). he also added
an extra smbpasswd option so that this bit can be modified from
command-line.
(This used to be commit 534fe319d9de8da2ed7e911dbba3c7df08193efa)
No more ugly static library buffers and all functions take a destination
string length (especially unistrcpy was rather dangerous; we were only
saved by the fact that datagrams are limited in size).
(This used to be commit a1d39af1ce1d451b811dbd7c2ba391214851b87e)
- split sam_passwd and smb_passwd into separate higher-order function tables
- renamed struct smb_passwd's "smb_user" to "unix_user". added "nt_user"
plus user_rid, and added a "wrap" function in both sam_passwd and smb_passwd
password databases to fill in the blank entries that are not obtained
from whatever password database API instance is being used.
NOTE: whenever a struct smb_passwd or struct sam_passwd is used, it MUST
be initialised with pwdb_sam_init() or pwd_smb_init(), see chgpasswd.c
for the only example outside of the password database APIs i could find.
- added query_useraliases code to rpcclient.
- dealt with some nasty interdependencies involving non-smbd programs
and the password database API. this is still not satisfactorily
resolved completelely, but it's the best i can do for now.
- #ifdef'd out some password database options so that people don't
mistakenly set them unless they recompile to _use_ those options.
lots of debugging done, it's still not finished. the unix/NT uid/gid
and user-rid/group-rid issues are better, but not perfect. the "BUILTIN"
domain is still missing: users cannot be added to "BUILTIN" groups yet,
as we only have an "alias" db API and a "group" db API but not "builtin-alias"
db API...
(This used to be commit 5d5d7e4de7d1514ab87b07ede629de8aa00519a1)
Tidied up some of the mess (no other word for it). Still doesn't
compile cleanly. There are calls with incorrect parameters that
don't seem to be doing the right thing.
This code still needs surgery :-(.
Jeremy.
(This used to be commit 18ff93a9abbf68ee8c59c0af3e57c63e4a015dac)
with a call to nt_lm_owf_gen. if this still doesn't get the NT hash
generated correctly then there may instead be a bug in mod_smbpwd_entry().
(This used to be commit 1c8c644210870fef7ea3eddf411b01a98f991fcc)
smbd/chgpasswd.c: Fixed (my) stupid bug where I was returning stack based variables. Doh !
smbd/trans2.c: Allows SETFILEINFO as well as QFILEINFO on directory handles.
Jeremy.
(This used to be commit 0b44d27d0b5cc3948a6c2d78370ccddf1a84cd80)
