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we never mix malloc and talloc'ed contexts in the
add_XX_to_array() and add_XX_to_array_unique()
calls. Ensure that these calls always return
False on out of memory, True otherwise and always
check them. Ensure that the relevent parts of
the conn struct and the nt_user_tokens are
TALLOC_DESTROYED not SAFE_FREE'd.
James - this should fix your crash bug in both
branches.
Jeremy.
password at next logon" code. The "password last set time" of zero now
means "user must change password", because that's how windows seems to
use it. The "can change" and "must change" times are now calculated
based on the "last set" time and policies.
We use the "can change" field now to indicate that a user cannot change
a password by putting MAX_TIME_T in it (so long as "last set" time isn't
zero). Based on this, we set the password-can-change bit in the
faked secdesc.
We usually do not get the results from user/group script modifications
immediately. A lot of users do add nscd restart/refresh commands into
their scripts to workaround that while we could flush the nscd caches
directly using libnscd.
Guenther
Remove the account_policy_migrated() thingy, and make cache_account_policy_set
use gencache. Account policies are now handled like groups and users are with
respect to "passdb backend".
Volker
* autogenerate lsa ndr code
* rename 'enum SID_NAME_USE' to 'enum lsa_SidType'
* merge a log more security descriptor functions from
gen_ndr/ndr_security.c in SAMBA_4_0
The most embarassing thing is the "#define strlen_m strlen"
We need a real implementation in SAMBA_3_0 which I'll work on
after this code is in.
* Make sure to lower case all usernames before
calling the create, delete, or rename hooks.
* Preserve case for usernames in passdb
* Flush the getpwnam cache after renaming a user
* Add become/unbecome root block in _samr_delete_dom_user()
when trying to verify the account's existence.
groups in the ${MACHINESID} and S_1-5-32 domains correctly,
I had to add a substr search on sambaSID.
* add substr matching rule to OpenLDAP schema
(we need to update the other schema as will since this
is a pretty important change). Sites will need to
- install the new schema
- add 'indea sambaSID sub' to slapd.conf
- run slapindex
* remove uses of SID_NAME_WKN_GRP in pdb_ldap.c
group IFF sid_to_gid(S-1-5-32-544) fails and 'winbind nested groups = yes'
* Add a SID domain to the group mapping enumeration passdb call
to fix the checks for local and builtin groups. The SID can be
NULL if you want the old semantics for internal maintenance.
I only updated the tdb group mapping code.
* remove any group mapping from the tdb that have a
gid of -1 for better consistency with pdb_ldap.c.
The fixes the problem with calling add_group_map() in
the tdb code for unmapped groups which might have had
a record present.
* Ensure that we distinguish between groups in the
BUILTIN and local machine domains via getgrnam()
Other wise BUILTIN\Administrators & SERVER\Administrators
would resolve to the same gid.
* Doesn't strip the global_sam_name() from groups in the
local machine's domain (this is required to work with
'winbind default domain' code)
Still todo.
* Fix fallback Administrators membership for root and domain Admins
if nested groups = no or winbindd is not running
* issues with "su - user -c 'groups'" command
* There are a few outstanding issues with BUILTIN\Users that
Windows apparently tends to assume. I worked around this
presently with a manual group mapping but I do not think
this is a good solution. So I'll probably add some similar
as I did for Administrators.
realloc can return NULL in one of two cases - (1) the realloc failed,
(2) realloc succeeded but the new size requested was zero, in which
case this is identical to a free() call.
The error paths dealing with these two cases should be different,
but mostly weren't. Secondly the standard idiom for dealing with
realloc when you know the new size is non-zero is the following :
tmp = realloc(p, size);
if (!tmp) {
SAFE_FREE(p);
return error;
} else {
p = tmp;
}
However, there were *many* *many* places in Samba where we were
using the old (broken) idiom of :
p = realloc(p, size)
if (!p) {
return error;
}
which will leak the memory pointed to by p on realloc fail.
This commit (hopefully) fixes all these cases by moving to
a standard idiom of :
p = SMB_REALLOC(p, size)
if (!p) {
return error;
}
Where if the realloc returns null due to the realloc failing
or size == 0 we *guarentee* that the storage pointed to by p
has been freed. This allows me to remove a lot of code that
was dealing with the standard (more verbose) method that required
a tmp pointer. This is almost always what you want. When a
realloc fails you never usually want the old memory, you
want to free it and get into your error processing asap.
For the 11 remaining cases where we really do need to keep the
old pointer I have invented the new macro SMB_REALLOC_KEEP_OLD_ON_ERROR,
which can be used as follows :
tmp = SMB_REALLOC_KEEP_OLD_ON_ERROR(p, size);
if (!tmp) {
SAFE_FREE(p);
return error;
} else {
p = tmp;
}
SMB_REALLOC_KEEP_OLD_ON_ERROR guarentees never to free the
pointer p, even on size == 0 or realloc fail. All this is
done by a hidden extra argument to Realloc(), BOOL free_old_on_error
which is set appropriately by the SMB_REALLOC and SMB_REALLOC_KEEP_OLD_ON_ERROR
macros (and their array counterparts).
It remains to be seen what this will do to our Coverity bug count :-).
Jeremy.
* ignore the primary group SID attribute from struct samu*
* generate the primary group SID strictlky from the Unix
primary group when dealing with passdb users
* Fix memory leak in original patch caused by failing to free a
talloc *
* add wrapper around samu_set_unix() to prevent exposing the create
BOOL to callers. Wrappers are samu_set_unix() and samu-allic_rid_unix()
* Add a 'struct passwd *' to the struct samu for later reference
(I know this may be controversial but its easily reverted which is
is why I'm checking this is as a seaparate patch before I get
too deep).
* Remove unix_homedir from struct samu {} and update the pdb wrapper
functions associated with it.
to make full use of the new talloc() interface. Discussed with Volker
and Jeremy.
* remove the internal mem_ctx and simply use the talloc()
structure as the context.
* replace the internal free_fn() with a talloc_destructor() function
* remove the unnecessary private nested structure
* rename SAM_ACCOUNT to 'struct samu' to indicate the current an
upcoming changes. Groups will most likely be replaced with a
'struct samg' in the future.
Note that there are now passbd API changes. And for the most
part, the wrapper functions remain the same.
While this code has been tested on tdb and ldap based Samba PDC's
as well as Samba member servers, there are probably still
some bugs. The code also needs more testing under valgrind to
ensure it's not leaking memory.
But it's a start......
* remove pdb_context data structure
* set default group for DOMAIN_RID_GUEST user as RID 513 (just
like Windows)
* Allow RID 513 to resolve to always resolve to a name
* Remove auto mapping of guest account primary group given the
previous 2 changes
talloc_string_sub. Someone with time on his hands could convert all the
callers of all_string_sub to this.
realloc_string_sub is *only* called from within substitute.c, it could be
moved there I think.
Volker
We came to the conclusion that changing the default is something that has to
wait one or two more releases, but it will happen one way or the other.
Volker
