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The background behind this patch is that we're using ntlm_auth with
Wine. Windows allows us to pass in a NULL domain and a username of the
form of "user@domain" and this is converted into an NTLMSSP_AUTH packet
with a NULL domain name and a username of the same form.
Jeremy.
For the winbind cached ADS LDAP connection handling
(ads_cached_connection()) we were (incorrectly) assuming that the
service ticket lifetime equaled the tgt lifetime. For setups where the
service ticket just lives 10 minutes, we were leaving hundreds of LDAP
connections in CLOSE_WAIT state, until we fail to service entirely with
"Too many open files".
Also sequence_number() in winbindd_ads.c needs to delete the cached LDAP
connection after the ads_do_search_retry() has failed to submit the
search request (although the bind succeeded (returning an expired
service ticket that we cannot delete from the memory cred cache - this
will get fixed later)).
Guenther
domain and user args. if only given a parameter of the
form --username DOMAIN\user. When called by firefox
or other user apps they may not know what the domain
is (and they don't care). They just want to pass the
contents of $USERNAME without having to parse it
or guess a domain.
Jeremy.
ntlm_auth module to allow it to use winbindd cached
credentials.The credentials are currently only stored
in a krb5 MIT environment - we need to add an option to
winbindd to allow passwords to be stored even in an NTLM-only
environment.
Patch from Robert O'Callahan, modified with some fixes
by me.
Jeremy.
A patch to make ntlm_auth recognize three new commands in
ntlmssp-client-1 and squid-2.5-ntlmssp:
The commands are the following:
Command: SF <hex number>
Reply: OK
Description: Takes feature request flags similar to samba4's
gensec_want_feature() call. So far, only NTLMSSP_FEATURE_SESSION_KEY,
NTLMSSP_FEATURE_SIGN and NTLMSSP_FEATURE_SEAL are implemented, using the same
values as the corresponding GENSEC_FEATURE_* flags in samba4.
Command: GF
Reply: GF <hex number>
Description: Returns the negotiated flags.
Command: GK
Reply: GK <base64 encoded session key>
Description: Returns the negotiated session key.
(These commands assist a wine project to use ntlm_auth for signing and
sealing of bulk data).
Andrew Bartlett
This mode proxies pre-calculated blobs from a remote (probably VPN)
client into the domain. This allows clients to change their password
over a PPTP connection (where they would not be able to connect to
SAMR directly).
The precalculated blobs do not reveal the plaintext password.
Original patch by Alexey Kobozev <cobedump@gmail.com>
prevents a nasty failure condition in winbindd's pam_auth where a tgt
and a service ticket could have been succefully retrieved, but just not
validated.
Guenther
lp_load() could not be called multiple times to modify parameter settings based
on reading from multiple configuration settings. Each time, it initialized all
of the settings back to their defaults before reading the specified
configuration file.
This patch adds a parameter to lp_load() specifying whether the settings should
be initialized. It does, however, still force the settings to be initialized
the first time, even if the request was to not initialize them. (Not doing so
could wreak havoc due to uninitialized values.)
logons work if the client gives the MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT
or MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT flags. This changes
the auth module interface to 2 (from 1). The effect of this is
that clients can access resources as a machine account if they
set these flags. This is the same as Windows (think of a VPN
where the vpn client authenticates itself to a VPN server
using machine account credentials - the vpn server checks
that the machine password was valid by performing a machine
account check with the PDC in the same was as it would a
user account check. I may add in a restriction (parameter)
to allow this behaviour to be turned off (as it was previously).
That may be on by default.
Andrew Bartlett please review this change carefully.
Jeremy.
* \PIPE\unixinfo
* winbindd's {group,alias}membership new functions
* winbindd's lookupsids() functionality
* swat (trunk changes to be reverted as per discussion with Deryck)
for bug #1717.The rest of the code needed to call this patch has not yet been
checked in (that's my next task). This has not yet been tested - I'll do this
once the rest of the patch is integrated.
Jeremy.
On systems with /dev/urandom, this avoids a change to secrets.tdb for every fork().
For other systems, we now only re-seed after a fork, and on startup.
No need to do it per-operation. This removes the 'need_reseed'
parameter from generate_random_buffer().
Andrew Bartlett
there is SYS_utimes syscall defined at compile time in glibc-kernheaders but
it is available on 2.6 kernels only. Therefore, we can't rely on syscall at
compile time but have to check that behaviour during program execution. An easy
workaround is to have replacement for utimes() implemented within our wrapper and
do not rely on syscall at all. Thus, if REPLACE_UTIME is defined already (by packager),
skip these syscall shortcuts.
This protocol looks rather like SMTP headers/LDAP:
NT-Domain: TESTWG
Username: abartlet
...
Password: foo
Challenge-response passwords are in hexideciaml, while any 'plain'
string can be base64 encoded when like this:
Password:: Zm9vCg==
(the :: indicates it, just like LDAP - I hope)
The protocol is not final, so it is #ifdef DEVELOPER for now (so
nobody starts to rely on it until I'm happy), but we may as well get
this into subversion.
My intention is to use this to power the next version of my
PPP/ntlm_auth plugin, and hopefully entice a FreeRadius plugin out of
the woods.
Andrew Bartlett
