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It makes no sense to go through all the hoops to build samu and
convert it to info3, just to discard them later if the user was
not valid.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
This ensures the results can't be easily left to leak.
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Günther Deschner <gd@samba.org>
The code is not yet in common, but I hope to fix that soon.
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Günther Deschner <gd@samba.org>
typedefs are no longer preferred Samba style.
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Günther Deschner <gd@samba.org>
This makes it a little easier for it to writen in terms of GENSEC in future.
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Günther Deschner <gd@samba.org>
This matches the structure that new code is being written to,
and removes one more of the old-style named structures, and
the need to know that is is just an alias for struct dom_sid.
Andrew Bartlett
Signed-off-by: Günther Deschner <gd@samba.org>
This shrinks include/includes.h.gch by the size of 7 MB and reduces build time
as follows:
ccache build w/o patch
real 4m21.529s
ccache build with patch
real 3m6.402s
pch build w/o patch
real 4m26.318s
pch build with patch
real 3m6.932s
Guenther
By an oversight, the patchset for #4347 made the unlocking of a locked
account after the lockout duration ineffective.
Thanks to Björn for finding this!
Michael
Adding this comment makes me think, I could also
have changed make_server_info_sam() talloc_move
instead of talloc_steal, but that would have
changed the signature... Well the comment is a
first step. :-)
Michael
So that a later talloc_free would not harm. I could have used
talloc_move instead of talloc steal in make_server_info_sam(),
but this would have required a change of the signature.
Michael
This is in preparation to extending check_sam_security to also check
against the password history before updating the bad password count.
This way, sam_password_ok can more easily be reused for that purpose.
Michael
data_blob(mem_ctx, 16) does not use mem_ctx as a talloc ctx but
copies 16 bytes from mem_ctx into the newly allocated data blob.
This can not have been intentional. A blank uint8_t array of
length 16 is allocated by passing NULL instead of mem_ctx.
And using data_blob_talloc(mem_ctx, NULL, 16) adds the allocated
blank 16 byte array to mem_ctx - so this is what must have been
intended.
Michael
Authentication of domain users on the member server fails when winbindd
is not running. This is because the is_trusted_domain() check behaves
differently when winbindd is running and when it isn't:
Since wb_is_trusted_domain() calls wbcDomainInfo(), and this will also
give a result for our own domain, this succeeds for the member
server's own domain when winbindd is running. When winbindd is not
running, is_trusted_domain() checks (and possibly updates) the trustdom
cache, and this does the lsa_EnumTrustDom() rpc call to the DC which
does not return its own domain.
In case of winbindd not running, before 3.4, the domain part was _silently_
mapped to the workgroup in auth_util.c:make_user_info_map(),
which effectively did nothing in the member case.
But then the parameter "map untrusted to domain" was introduced
and the mapping was made to the workstation name instead of
the workgroup name by default unless "map untrusted to domain = yes".
(Commits
d8c54fddda,
5cd4b7b7c0, and
fbca269239)
This was ok as long as winbindd was running, but with winbindd not running,
these changes actually uncovered the above logic bug in the check.
So the correct check is to treat the workgroup as trusted / or known
in the member case. This is most easily achieved by not comparing the
domain name against get_global_sam_name() which is the host name unless
for a DC but against my_sam_name() which is the workgroup for a DC and for
a member, too. (These names are not very intuitive...)
I admit that this is a very long commit message for a one-liner, but this has
needed some tracking down, and I think the change deserves some justification.
Michael
W2K3 DC's can have IPv6 addresses but won't serve
krb5/ldap or cldap on those addresses. Make sure when
we're asking for DC's we prefer IPv4.
If you have an IPv6-only network this prioritizing code
will be a no-op. And if you have a mixed network then you
need to prioritize IPv4 due to W2K3 DC's.
Jeremy.
This is an addendum to d8c54fdd, which made make_user_info_map() match
Windows behavior by mapping untrusted domains given to smbd on the wire
with the users credentials to smbd's global sam name.
This fix was being circumvented in the case where the client passed
a NULL domain. Vista clients do this. In that case smbd was always
remapping the name to the machine workgroup. The NULL domain case
should also be mapped to the global sam name.
Removing the code in this patch, causes us to fall down to the logic
added in d8c54fdd and properly map the domain.
Patch from Jeremy.
With this patch, I was able to join Windows 7 RC to a Samba3 DC, and login into a
Samba 3 Domain.
There are still two registry settings required:
HKLM\System\CCS\Services\LanmanWorkstation\Parameters
DWORD DomainCompatibilityMode = 1
DWORD DNSNameResolutionRequired = 0
Do *not* modify the other netlogon registry parameters that were passed around,
they weaken security.
Guenther
(cherry picked from commit b5097d54cb)
This commit is mostly to cope with the removal of SamOemHash (replaced
by arcfour_crypt()) and other collisions (such as changed function
arguments compared to Samba3).
We still provide creds_hash3 until Samba3 uses the credentials code in
netlogon server
Andrew Bartlett
This fix is very subtle. If a server is configured with "security = share"
and "guest ok = yes" and winbindd is running authorization will fail during
tree connect.
This is due to our inability to map the guest sid S-1-5-21-X-501 to a uid
through sid_to_uid(). Winbindd is unaware of the hard coded mapping
between this sid and whatever uid the name in lp_guestaccount() is assigned.
So sid_to_uid() fails and we exit create_token_from_username() without
ever calling pdb_getsampwsid() which IS aware of the hard coded mapping.
This patch just reorganizes the code, moving sid_to_uid() down to the
block of code in which it is needed, avoiding this early failure.
After the discussion on samba-technical, it was decided that the best
answer for now was to revert this change. The right way to do this is
to rewrite the token api to use opaque tokens with pluggable modules.
This reverts commit 8e19a28805.
This new backend is custom tailored to onefs' unique requirements:
1) No fallback logic
2) Does not validate the domain of the user
3) Handles unencrypted passwords
When set to yes, "force username map" forces every user, even AD
users, through an NSS lookup. This allows the token to be overridden
with information from NSS in certain broken environments.
After a lot of testing against various Windows servers (W2K, W2K3, W2K8),
within an AD domain it seems that unknown domains will only be translated
to the local account domain, not the netbios name of the member server's
domain. This makes samba act more like Windows.
A somewhat more elegant fix than I could use for 3.2.x or 3.0.x.
Turns out the only part of check_user_ok() that needs to change
for share level security is the VUID cache pieces, so I can just
always use check_user_ok() for all lp_security() cases.
Jeremy
This is an orthogonality measure to make clear this pointer now belongs to the
cache.
(cherry picked from commit e6080c6e87d6fe3995b121a772bf3f6343fa666f)
Remove the code in memcache that does a TALLOC_FREE on stored pointers. That's a disaster waiting
to happen. If you're storing talloc'ed pointers, you can't know their lifecycle and they should
be deleted when their parent context is deleted, so freeing them at some arbitrary point later
will be a double-free.
Jeremy.
str_list_make(). From Dan Sledz <dan.sledz@isilon.com>:
In samba 3.2 passing NULL or an empty string returned NULL.
In master, it now returns a list of length 1 with the first string set
to NULL (an empty list).
Jeremy.
This authenticates against a local running samba4 using SamLogonEx. We retrieve
the machine password using samba4's mymachinepwd script and store the schannel
key for re-use in secrets.tdb.
position zero being the primary group sid. Authenicating
via winbindd call returned a non-sorted sid list. This
fixes is for both a winbindd call and a pac list from
an info3 struct. Without this we mess up the
primary group associated with created files. Found by
Herb.
Jeremy.
(This used to be commit cb925dec85)
The Debug messages in create_builtin_users and create_builtin_users have now
been encapsulated in add_sid_to_builtin.
(This used to be commit ca153139b1)
Previously this was done at token creation time if the Administrators and Users
builtins hadn't been created yet. A major drawback to this approach is that if
a customer is joined to a domain and decides they want to join a different
domain, the domain groups from this new domain will not be added to the
builtins.
It would be ideal if these groups could be added exclusively at domain join
time, but we can't rely solely on that because there are cases where winbindd
must be running to allocate new gids for the builtins. In the future if there
is a way to allocate gids for builtins without running winbindd, this code
can be removed from create_local_nt_token.
- Made create_builtin_users and create_builtin_administrators non-static so
they can be called from libnet
- Added a new function to libnet_join that will make a best effort to add
domain administrators and domain users to BUILTIN\Administrators and
BUILTIN\Users, respectively. If the builtins don't exist yet, winbindd must be
running to allocate new gids, but if the builtins already exist, the domain
groups will be added even if winbindd is not running. In the case of a
failure the error will be logged, but the join will not be failed.
- Plumbed libnet_join_add_dom_rids_to_builtins into the join post processing.
(This used to be commit e92faf5996)
- Modified create_builtin_administrators and add_builtin_administrators to take
in the domain sid to reduce the number of times it needs to be looked up.
- Changed create_builtin_administrators to call the new helper functions.
- Changed create_local_nt_token to call the new version of
create_builtin_administrators and handle the new error that can be returned.
- Made it more explicit that add_builtin_administrators is only called when
winbindd can't be pinged.
(This used to be commit f6411ccb4a)
- Modified create_builtin_users to take in the domain sid to reduce the number
of times it needs to be looked up.
- Changed create_builtin_users to call the new helper functions.
- Changed create_local_nt_token to call the new version of create_builtin_users
and handle the new error that can be returned.
(This used to be commit 8d75d40b9f)
Added two new helper functions which wrap the raw pdb alias functions so they
can be more conveniently called while adding domain groups to builtin groups.
(This used to be commit 668ef31455)
This has brown paper bag quality and is definitely needed for 3.2.0.
Thanks to Orion Poplawski for reporting this!
Volker
(This used to be commit 3b31f8cce3)
Raise the debug msgs from Lvl 0 in the create_builtin_XX() functions
to prevent unnecessary panic from people reading the logs.
(This used to be commit 2983b9dc79)
In order to avoid receiving NT_STATUS_DOWNGRADE_DETECTED from a w2k8
netr_ServerAuthenticate2 reply, we need to start with the AD netlogon negotiate
flags everywhere (not only when running in security=ads). Only for NT4 we need
to do a downgrade to the returned negotiate flags.
Tested with w2k8, w2ksp4, w2k3r2 and nt4sp6.
Guenther
(This used to be commit 0970369ca0)
Another preparation to convert secrets.c to dbwrap: The dbwrap API does not
provide a sane tdb_lock_with_timeout abstraction. In the clustered case the DC
mutex is needed per-node anyway, so it is perfectly fine to use a local mutex
only.
(This used to be commit f94a63cd8f)
smbd doesn't need $(WBCOMMON_OBJ) anymore,
it works with any libwbclient.so now
and may talk to an older winbindd.
metze
(This used to be commit e3435930a3)
get_root_nt_token asks for "struct nt_user_token". talloc_get_type is not smart
enough to see that this is the same as NT_USER_TOKEN... :-)
(This used to be commit 22a98bf7b8)
Implements a wrapper layer in winbind_util.c which are just stubs
if compiled --without-winbind. When building with winbindd, it
is now required to build the libwbclient DSO first (in the Makefile)
and then either set LD_LIBRARY_PATH or /etc/ld.so.conf to pick up the
library PATH.
(This used to be commit 42787bccff)
