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returning access denied for a SAMR_CONNECT by an anonymous user which
seems to be the way 2K does it rather than blocking individual RPC
calls like NT.
Also checked is the SAMR_GET_DOM_PWINFO rpc which for some reason
doesn't require a policy handle to return information. No idea what
it's actually used.
(This used to be commit 40c68fa85c31c1baf7ba2c8ed62cd06c34711913)
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passdb interface change, now the passdb modules will be asked for SID not for rid, the modules have been updated with a passthrough function that calls the old getsampwrid() functions.
srv_samr_nt.c functions that made use of the pdb_getsampwrid funcion has been updated to use the SID one.
(This used to be commit f5c6496c33fa7f5c2826540ffb4a49d8a5790fb3)
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Importantly:
The removal of the silly 'delete user script' behaviour when secuity=domain.
I have left the name the same - as it still does the (previously documented,
but not in smb.conf(5)) sane behaviour of deleting users on request.
When we decide what to do with the 'add user' functionality, we might
rename it.
Andrew Bartlett
(This used to be commit cdcfe3671eb7570e15649b77f708e6579055e7bc)
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These might be reimplmented as simple pass-through functions, but all users
really should be doing 'getpwnam_alloc' or 'getpwuid_alloc' to ensure that
there are not shared static buffers.
I don't beleive we actually need a getpw*() cache inside samba - if we do
then I think we should look at our code design first.
(some of these changes are for platforms I don't have access to, but
they look sane)
Andrew Bartlett
(This used to be commit 9d8431b04f41dceffe4c45cc969472ee59f7282f)
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the passdb) and RIDs not in the passdb, due to being NIS users etc.
The main fix here is to add become_root()/unbecome_root() at critical places.
This (finally) fixes the bug where you could not see local users's names
in a file's security properties as non-root. Tested.
The similar bug in uid_to_sid is also fixed, but is not (yet) Tested.
Andrew Bartlett
(This used to be commit 79327a305e20d78ab5ca21d01c39b5f49dc0d632)
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Jeremy.
(This used to be commit c6566fa5fadf37a2b133e7be1f13c0de93efab34)
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fails.
Andrew Bartlett
(This used to be commit 56009ffbaa00259d15f286248a7ab73c55371819)
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we still need to free gid<->rid mapping and few other stuff
(This used to be commit aa4b6f8181f34196a28951264dd8b631a5deef7f)
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fixed tdbsam memory corruption (and segfault)
reducing calls to pdb_uid_to_user_rid and countrary to 0 to move to a non alghoritmic rid allocation with some passdb modules.
(This used to be commit 9836af7cd623357feaec07bc49cfb78f0aa01fc3)
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lookup_domain calls. We were incorrectly returning the PDCs domain
nameand SID when we are a domain member. We should only do that when
we are the DC
(This used to be commit f56d689497eaa670cbfb214486ba88d5972129db)
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Changed "SMB/Netbios" to "SMB/CIFS" in file header.
(This used to be commit 6a58c9bd06d0d7502a24bf5ce5a2faf0a146edfa)
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and its new args.
(This used to be commit e7b3d64f6055b5d3b036f525f0ece3c9479d4f7a)
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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)
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This time its the pdb_getsampwuid() function - which was only being used by the
SAMR rpc subsystem to gain a 'user session key'. This 'user session key' is
actually generated at login time, and the other changes here simply move that
data around.
This also means that (when I check some details) we will be able to use the
user session key, even when we are not actually the DC, becouse its one of the
components of the info3 struct returned on logon.
Andrew Bartlett
(This used to be commit 799ac01fe08a338e4e94289f5d6767ebf905c1fa)
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smbd, and also makes it much cleaner inside winbindd.
It is mostly my code, with a few changes and testing performed by Alexander
Bokovoy <a.bokovoy@sam-solutions.net>. ab has tested it in security=domain and
security=ads, but more testing is always appricatiated.
The idea is that we no longer cart around a 'domain\user' string, we keep them
seperate until the last moment - when we push that string into a pwent on onto
the socket.
This removes the need to be constantly parsing that string - the domain prefix
is almost always already provided, (only a couple of functions actually changed
arguments in all this).
Some consequential changes to the RPC client code, to stop it concatonating the
two strings (it now passes them both back as params).
I havn't changed the cache code, however the usernames will no longer have a
double domain prefix in the key string. The actual structures are unchanged
- but the meaning of 'username' in the 'rid' will have changed. (The cache is
invalidated at startup, so on-disk formats are not an issue here).
Andrew Bartlett
(This used to be commit e870f0e727952aeb8599cf93ad2650ae56eca033)
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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)
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Thou shalt not reference SAM_ACCOUNT members directly - always use
pdb_get/pdb_set.
This is achived by making the whole of SAM_ACCOUNT have a .private member,
where the real members live. This caught a pile of examples, and these have
beeen fixed.
The pdb_get..() functions are 'const' (have been for some time) and this
required a few small changes to constify other functions.
I've also added some debugs to the pdb get and set, they can be removed if
requested.
I've rewritten the copy_id2x_to_sam_pass() functions to use the new passdb
interface, but I need the flags info to do it properly.
The pdb_free_sam() funciton now blanks out the LM and NT hashes, and as such
I have removed many extra 'samr_clear_sam_passwd(smbpass)' calls as a result.
Finally, any and all testing is always appriciated - but the basics seem to
work.
Andrew Bartlett
(This used to be commit d3dd28f6c443187b8d820d5a39c7c5b3be2fa95c)
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This means different return sizes depending on client bugs. This sucks :-(.
Jeremy.
(This used to be commit f6592628eb526c487069bb3fcd809aca930e668e)
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Jeremy.
(This used to be commit efbec935fe727d5d5bd852c7bae9baf92df18686)
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member server. Firstly, use the same max enumeration size (0x400) as W2K
uses, otherwise W2K won't ask for any more. Secondly, if a enumeration
request with a non-zero offset comes in on a handle that hasn't started
an enumeration, don't bitch about it (return NT_STATUS_UNSUCCESSFUL),
just load the db on that handle and return at that offset.
Jeremy.
(This used to be commit 0b7da4a50ea02e28ab23e71de1e5f8b9194a9af3)
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Jeremy.
(This used to be commit 621fa227bdf6af15daa13f62287978dc2310c04c)
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Jeremy.
(This used to be commit bf1816099707b816c9b62ad5ab794dc49b833181)
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J.F.
(This used to be commit 87928c4d91940447191af4fe83a2be7ac3477361)
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calculate them and always reply a size of 32 bytes whereas NT4 did the
maths. Anyway, it looks like the clients don't complain.
in query_dom_info() at level 2, return the real number of users and
groups. That's the fix to the W95/98 userlist bug !
as W95/98 does a query_dom_info(2) followed by a query_disp_info(4) on
the SAME context handle (err we call it an lsa policy handle ! plain
wrong name), I was tempted to keep the snapshoot in memory, to prevent
2 full user db enumerations in a row and just have one shared. But if some
client does the 2 calls on two different handles, we would have 2 copies
in memory not free'ed before the samr_close().
We still have too many fixed constant and too many magic values in that
code. And btw, I really hates how the sequence number is generated !
J.F.
(This used to be commit c0178e1a03f8225e5b350feb8fcbfb02f43327b4)
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Jeremy.
(This used to be commit bf65331cb49299189d35ad5834167ec24b3a1ecb)
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are pointers withing the SAM_ACCOUNT struct that also need freeing.
Jeremy.
(This used to be commit a7d099cc75f813b4010a5f313c3fa6e6e8284b6d)
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instead of enumerating the whole user db or group db every time, we store
a in memory copy linked to the handle.
that's much faster for large enumeration where the db can't fit in a
single rpc packet. And as it's a copy, it's constant between enumeration.
still some stuff to clean. But now I can fix the W95 userlist bug, as I've
finally found it.
J.F.
(This used to be commit 3ab45215369e8e93d750f4687e9c1f7d47782590)
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(This used to be commit 589aa4fe226ee5bdae0a244631193714b0b556ac)
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(This used to be commit 5e0f0716ca9826de110fd9eeaf231970e7c19b42)
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It's just to keep usermanager happy ;-)
clean up a bit samr_query_aliasinfo to return the group description
added: samr_del_aliasmem, samr_del_groupmem and samr_del_domuser
with the correct scripts, you can now entirely manage the users from
usermanager ! Closer to full PDC every day ;-)
J.F.
(This used to be commit 0a727afc669704cda9b44d44dbac9e989e906ae3)
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J.F.
(This used to be commit a0b5ae58228d01ff5099180f16ffba4353bd28a7)
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- removed the ugly as hell sam_logon_in_ssb variable, I changed a bit the
definition of standard_sub_basic() to cope with that.
- removed the smb.conf: 'domain admin group' and 'domain guest group'
parameters ! We're not playing anymore with the user's group RIDs !
- in get_domain_user_groups(), if the user's gid is a group, put it first
in the group RID list.
I just have to write an HOWTO now ;-)
J.F.
(This used to be commit fef52c4b96c987115fb1818c00c2352c67790e50)
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now return the alias correctly.
time to look at the netlogon case.
J.F.
(This used to be commit 72ee1791084d09e73d8057e37ced4a79cecffb35)
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not the privileges. Usually we don't need them, so the memory is free
early.
lib/util_sid.c: added some helper functions to check an SID.
passdb/passdb.c: renamed local_lookup_rid() to local_lookup_sid() and pass
an RID all the way. If the group doesn't exist on the domain SID,
don't return a faked one as it can collide with a builtin one. Some rpc
structures have been badly designed, they return only rids and force the
client to do subsequent lsa_lookup_sid() on the domain sid and the builtin
sid !
rpc_server/srv_util.c: wrote a new version of get_domain_user_groups().
Only the samr code uses it atm. It uses the group mapping code instead of
a bloody hard coded crap. The netlogon code will use it too, but I have to
do some test first.
J.F.
(This used to be commit 6c87e96149101995b7d049657d5c26eefef37d8c)
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You can change them with either usermanager->policies->account
or from a command prompt on NT/W2K: net accounts /domain
we can add a rpc accounts to the net command. As the net_rpc.c is still
empty, I did not start. How should I add command to it ? Should I take the
rpcclient/cmd_xxx functions and call them from there ?
alse changed the SAM_UNK_INFO_3 parser, it's an NTTIME. This one is more
for jeremy ;-)
J.F.
(This used to be commit bc28a8eebd9245ce3004ae4b1a359db51f77bf21)
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and some comments to the samr server code, to explain what we should
return here.
J.F.
(This used to be commit 06cb20a46d9d9f8abf0d92ba4cfa4d23187ad715)
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and added comments and some debugs.
J.F.
(This used to be commit 114eba496fa020a7f491eb549c91fb38ca34dabb)
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This time it's a PRIVILEGE_SET struct instead of a simple uint32 array. It
makes much more sense. Also added a uint32 systemaccount to the GROUP_MAP
struct as some privilege showing in USRMGR.EXE are not real privs but a
bitmask flag. I guess it's an heritage from NT 3.0 ! I could setup an NT
3.1 box to verify, but I'm too lazy (yes I still have my CDs).
Added 3 more LSA calls: SetSystemAccount, AddPrivileges and
RemovePrivileges, we can manage all this privilege from UserManager.
Time to change the NT_USER_TOKEN struct and add checks in all the rpc
functions. Fun, fun, fun.
J.F.
(This used to be commit 3f0a9ef2b8c626cfa2878394bb7b642342342bf3)
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We now get the full account policy window in usermanager, and the
framework to store all those values. I plan to add a TDB file to store
them.
oh, and found that the last value in a sam_unknown_info_12_inf struct is
an uint16 and not a uint32.
andrewb: you hardcoded the MAX_PASSWORD_AGE to 21 days. We can now turn it
to a value setable in usermanager.
J.F.
(This used to be commit 99471d25693f6672d433b90a060378f6faad867f)
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structre contains pointers (well not if you intend of free those pointers
at some stage)
There is no reason (given the new passdb interface) that you can't modify a
SAM_ACCOUNT in any case.
Andrew Bartlett
(This used to be commit e8e73f7f0fcd86c8c2bfe3fc0b44ea2fd6570cc5)
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an array of uint32. That's not perfect but that's better.
Added more privileges too.
Changed the local_lookup_rid/name functions in passdb.c to check if the
group is mapped. Makes the LSA rpc calls return correct groups
Corrected the return code in the LSA server code enum_sids.
Only enumerate well known aliases if they are mapped to real unix groups.
Won't confuse user seeing groups not available.
Added a short/long view to smbgroupedit.
now decoding rpc calls to add/remove privileges to sid.
J.F.
(This used to be commit f29774e58973f421bfa163c45bfae201a140f28c)
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(This used to be commit 8004cfea19e10ad942c59f2f6a6bd992791017ba)
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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)
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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)
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(This used to be commit 2d0922b0eabfdc0aaf1d0797482fef47ed7fde8e)
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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)
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- call pdb_reset_sam() after each getent call.
Fix bug in get_group_alias_entries(), were if num_entries was zero this caused
talloc() to return NULL, failing a test below with NT_STATUS_NO_MEMORY.
Fix pdb_reset_sam() to correctly initalise the sam structure.
Move default value code into a single place, likewise for sam freeing code.
- should make things easier if we decide to malloc other strings, or get more
non-zero default values.
Finally, add a function in init a sam struct from a getpwnam() return.
Andrew Bartlett
(This used to be commit a41fb44f5e90cf8734d57217e836e14f4a80bd47)
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decode_pw_buffer() and the samr password changing routines.
And yes, I know that we can lost some information in the Unicode->UTF->Unicode
bit of this, but its worth the code cleanup.
This also takes into account the possability of multibyte passwords.
Andrew Bartlett
(This used to be commit 42402c87d6bcff71b700e497b74d2600d7ce8b95)
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Tidied up debug messages in lib/messages.c
Jeremy.
(This used to be commit dfb58f227609d6c8a255677b85ec853efa19f602)
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(This used to be commit 5ceecc7bef71b455ba7c4efd9928e2433dccc961)
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