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This occured when the attempt to contact the PDC failed. The connection code
has already shut down the connection, and 'free'ed the cli or has never
initialised it in the first place.
Andrew Bartlett
(This used to be commit 37ce7630434c1afae5164c64438f428dd8e1b731)
This work was sponsored by Optifacio Software Services, Inc.
Andrew Bartlett
(various e-mails announcements merged into some form of commit message below:)
This patch which adds basics of universal groups support
into Samba 3. Currently, only Winbind with RPC calls supports this, ADS
support requires additional (possibly huge) work on KRB5 PAC. However,
basic infrastructure is here.
This patch adds:
1. Storing of universal groups for particular user logged into Samba
software (smbd/ two winbind-pam methods) into netlogon_unigrp.tdb as array
of uint32 supplemental group rids keyed as DOMAIN_SID/USER_RID in tdb.
2. Fetching of unversal groups for given user rid and domain sid from
netlogon_unigrp.tdb.
Since this is used in both smbd and winbindd, main code is in
source/lib/netlogon_uingrp.c. Dependencies are added to AUTH_OBJ as
UNIGRP_OBJ and WINBINDD_OBJ as UNIGRP_OBJ.
This patch has had a few versions, the final version in particular:
Many thanks to Andrew Bartlett for critics and comments, and partly
rewritten code.
New:
- updated fetching code to changed byte order macros
- moved functions to proper namespace
- optimized memory usage by reusing caller's memory context
- enhanced code to more follow Samba coding rules
Todo:
- proper universal group expiration after timeout
(This used to be commit 80c2aefbe7c1aa363dd286a47d50c5d8b4595f43)
Replace this with some flags that *we* define. We can do a mapping later
if we actually get some more reliable info about what passwords are actually
valid.
Andrew Bartlett
(This used to be commit 7f7a42c3e4d5798ac87ea16a42e4976c3778a76b)
Also more insertion of parenthesis to handle struct members called
'free'.
You can now get useful dmalloc output, as long as it is compatible
with your C library. On RH7.1 it looks like you have to rebuild
dmalloc to allow free(0) by default, because something in libcrypt
does that. (sigh)
(This used to be commit 391cbb690196537c8b6292b42c2e27408cc7e249)
The auth_authsupplied_info typedef is now just a plain struct - auth_context,
but it has been modified to contain the function pointers to the rest
of the auth subsystem's components.
(Who needs non-static functions anyway?)
In working all this mess out, I fixed a number of memory leaks and moved the
entire auth subsystem over to talloc().
Note that the TALLOC_CTX attached to the auth_context can be rather long-lived,
it is provided for things that are intended to live as long. (The
global_negprot_auth_context lasts the whole life of the smbd).
I've also adjusted a few things in auth_domain.c, mainly passing the domain as
a paramater to a few functions instead of looking up lp_workgroup(). I'm
hopign to make this entire thing a bit more trusted domains (as PDC) freindly
in the near future.
Other than that, I moved a bit of the code around, hence the rather messy diff.
Andrew Bartlett
(This used to be commit 12f5515f556cf39fea98134fe3e2ac4540501048)
when using the 'name_to_ntstatus' auth module.
This could be useful in testing.
Andrew Bartlett
(This used to be commit 5cdc67d0bda8ef41305cae9c5be70d11593ffdd8)
- Move rpc_client/cli_trust.c to smbd/change_trust_pw.c
- It hasn't been used by anything else since smbpasswd lost its -j
- Add a TALLOC_CTX to the auth subsytem. These are only valid for the length
of the calls to the individual modules, if you want a longer context hide it
in your private data.
Similarly, all returns (like the server_info) should still be malloced.
- Move the 'ntdomain' module (security=domain in oldspeak) over to use the new
libsmb domain logon code. Also rework much of the code to use some better
helper functions for the connection - getting us much better error returns
(the new code is NTSTATUS).
The only remaining thing to do is to figure out if tpot's 0xdead 0xbeef for
the LUID feilds is sufficient, or if we should do random LUIDs as per the old
code.
Similarly, I'll move winbind over to this when I get a chance.
This leaves the SPOOLSS code and some cli_pipe code as the only stuff still in
rpc_client, at least as far as smbd is concerned.
While I've given this a basic rundown, any testing is as always appriciated.
Andrew Bartlett
(This used to be commit d870edce76ecca259230fbdbdacd0c86793b4837)
probably will never actually be genearted, but I like the style in any case.
Also fix a segfault in 'net rpc' when the login failed and a small memory leak
on failure in the auth_info.c code.
Andrew Bartlett
(This used to be commit 2efae7cc522651c22fb120835bc800645559b63e)
the method used for checking if a domain is a trusted domain is very
crude, we should really call a backend fn of some sort. For now I'm
using winbindd to do the dirty work.
(This used to be commit adf44a9bd0d997ba4dcfadc564a29149531525af)
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)
- 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)
name_status_find() call here should look up a #1c name instead of #1d.
This fixes some bugs currently with BDC authentication in winbindd and in
smbd as you can't query the #1d name with the ip address of a BDC.
Who is Uncle Tom Cobbley anyway?
(This used to be commit 4215048f7b20a8f9e5877bdbb2f54841b2f7fa64)
We now default encrypt passwords = yes
We now check plaintext passwords (however aquired) with the 'sam' backend
rather than unix, if encrypt passwords = yes.
(this kills off the 'local' backed. The sam backend may be renamed in its
place)
The new 'samstrict' wrapper backend checks that the user's domain is one of
our netbios aliases - this ensures that we don't get fallback crazies with
security = domain.
Similarly, the code in the 'ntdomain' and 'smbserver' backends now checks
that the user was not local before contacting the DC.
The default ordering has changed, we now check the local stuff first - but
becouse of the changes above, we will really only ever contact one
auth source.
Andrew Bartlett
(This used to be commit e89b47f65e7eaf5eb288a3d6ba2d3d115c628e7e)
and replaced with two functions:
void zero_ip(struct in_adder *ip);
BOOL is_zero_ip(struct in_addr ip);
(This used to be commit 778f5f77a66cda76348a7c6f64cd63afe2bfe077)
subdirectory.
(The insertion of these files was done with some CVS backend magic, hence the
lack of a commit message).
This also moves libsmb/domain_client_validate.c back into auth_domain.c,
becouse we no longer share it with winbind.
Andrew Bartlett
(This used to be commit 782835470cb68da2188a57007d6f55c17b094d08)
map.
This little authentication module is #ifdef DEVELOPER, becouse it really is of
no use execept as a development tool
invoke by setting:
auth methods = guest sam name_to_ntstatus
in the smb.conf file (the SAM and guest elements are required for the member
server to authenticate itself).
Andrew Bartlett
(This used to be commit 9807e66f34c1088399657060977e384c5a7f0664)
subystem.
The particular aim is to modularized the interface - so that we
can have arbitrary password back-ends.
This code adds one such back-end, a 'winbind' module to authenticate
against the winbind_auth_crap functionality. While fully-functional
this code is mainly useful as a demonstration, because we don't get
back the info3 as we would for direct ntdomain authentication.
This commit introduced the new 'auth methods' parameter, in the
spirit of the 'auth order' discussed on the lists. It is renamed
because not all the methods may be consulted, even if previous
methods fail - they may not have a suitable challenge for example.
Also, we have a 'local' authentication method, for old-style
'unix if plaintext, sam if encrypted' authentication and a
'guest' module to handle guest logins in a single place.
While this current design is not ideal, I feel that it does
provide a better infrastructure than the current design, and can
be built upon.
The following parameters have changed:
- use rhosts =
This has been replaced by the 'rhosts' authentication method,
and can be specified like 'auth methods = guest rhosts'
- hosts equiv =
This needs both this parameter and an 'auth methods' entry
to be effective. (auth methods = guest hostsequiv ....)
- plaintext to smbpasswd =
This is replaced by specifying 'sam' rather than 'local'
in the auth methods.
The security = parameter is unchanged, and now provides defaults
for the 'auth methods' parameter.
The available auth methods are:
guest
rhosts
hostsequiv
sam (passdb direct hash access)
unix (PAM, crypt() etc)
local (the combination of the above, based on encryption)
smbserver (old security=server)
ntdomain (old security=domain)
winbind (use winbind to cache DC connections)
Assistance in testing, or the production of new and interesting
authentication modules is always appreciated.
Andrew Bartlett
(This used to be commit 8d31eae52a9757739711dbb82035a4dfe6b40c99)
This should remove some confusion from the ./configure, but does not affect the
'real' kerberos support currently residing in smbd/sesssetup.c.
This code is vunerable to a spoofed KDC, and is best replaced by --with-pam and
the pam_krb5 module. This module includes measures to prevent such spoofing.
Andrew Bartlett
(This used to be commit 3235880b41ee5dd5ef171195489fb9254f5d89b0)
per-share. I beleive that almost all the things that this could have done on
a per-share basis can be done with other tools, like 'force user'.
Almost all the user's of this paramater used it as a global anyway...
While this is one step at a time, I hope it will allow me to considerably
simplfy the make_connection() code, particularly for the user-level security
case.
This already removes an absolute truckload of extra attempted password lookups
on the guest account.
Andrew Bartlett
(This used to be commit 8e708332eded210c1d1fe0cebca3c9c19f054b71)
This changes the way we process guest logons - we now treat them as normal
logons, but set the 'guest' flag. In particular this is needed becouse Win2k
will do an NTLMSSP login with username "", therefore missing our previous guest
connection code - this is getting a pain to do as a special case all over the
shop.
Tridge: We don't seem to be setting a guest bit for NTLMSSP, in either the
anonymous or authenticated case, can you take a look at this?
Also some cleanups in the check_password() code that should make some of the
debugs clearer.
Various other minor cleanups:
- change the session code to just take a vuser, rather than having to do a
vuid lookup on vuser.vuid
- Change some of the global_client_caps linking
- Better debug in authorise_login(): show the vuid.
Andrew Bartlett
(This used to be commit 62f4e4bd0aef9ade653b3f8d575d2864c166ab4d)
