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the schannel code, but I've included that anyway. :-)
This patch revives the client-side NTLMSSP support for RPC named pipes
in Samba, and cleans up the client and server schannel code. The use of the
new code is enabled by the 'sign', 'seal' and 'schannel' commands in
rpcclient.
The aim was to prove that our separate NTLMSSP client library actually
implements NTLMSSP signing and sealing as per Microsoft's NTLMv1 implementation,
in the hope that knowing this will assist us in correctly implementing
NTLMSSP signing for SMB packets. (Still not yet functional)
This patch replaces the NTLMSSP implementation in rpc_client/cli_pipe.c with
calls to libsmb/ntlmssp.c. In the process, we have gained the ability to
use the more secure NT password, and the ability to sign-only, instead of
having to seal the pipe connection. (Previously we were limited to sealing,
and could only use the LM-password derived key).
Our new client-side NTLMSSP code also needed alteration to cope with our
comparatively simple server-side implementation. A future step is to replace
it with calls to the same NTLMSSP library.
Also included in this patch is the schannel 'sign only' patch I submitted to
the team earlier. While not enabled (and not functional, at this stage) the
work in this patch makes the code paths *much* easier to follow. I have also
included similar hooks in rpccleint to allow the use of schannel on *any* pipe.
rpcclient now defaults to not using schannel (or any other extra per-pipe
authenticiation) for any connection. The 'schannel' command enables schannel
for all pipes until disabled.
This code is also much more secure than the previous code, as changes to our
cli_pipe routines ensure that the authentication footer cannot be removed
by an attacker, and more error states are correctly handled.
(The same needs to be done to our server)
Andrew Bartlett
(This used to be commit 5472ddc9eaf4e79c5b2e1c8ee8c7f190dc285f19)
It can itself determine the length of the string it has to
transfer. Andrew B., could you take a look at the length calculation?
Is that safe?
Thanks,
Volker
(This used to be commit 0ef69b586a8f1fa11a41a3900180ea2090b60bfd)
rpcclient -S pdc -U% -c "samlogon user password"
and it should work with the schannel. Needs testing against platforms
different from NT4SP6.
Volker
(This used to be commit eaef0d8aeff1aa5a067679be3f17e08d7434e1e8)
dashes of const. This is a rather large check-in, some things may break.
It does compile though :-).
Jeremy.
(This used to be commit f755711df8f74f9b8e8c1a2b0d07d02a931eeb89)
This commit gets rid of all our old codepage handling and replaces it with
iconv. All internal strings in Samba are now in "unix" charset, which may
be multi-byte. See internals.doc and my posting to samba-technical for
a more complete explanation.
(This used to be commit debb471267960e56005a741817ebd227ecfc512a)
set little-endian flag on marshalling. AS/U now correctly tries to join
our domain !
Jeremy.
(This used to be commit 0185f8159dbd30820d1ec9ce2aec8eb1cddcfc0b)
We were reading the endainness in the RPC header and then never propagating
it to the internal parse_structs used to parse the data.
Also removed the "align" argument to prs_init as it was *always* set to
4, and if needed can be set differently on a case by case basis.
Now ready for AS/U testing when Herb gets it set up :-).
Jeremy.
(This used to be commit 0cd37c831d79a12a10e479bf4fa89ffe64c1292a)
Removed IS_BITS_xxx macros as they were just reproducing "C" syntax in a more
obscure way.
Jeremy.
(This used to be commit c55bcec817f47d6162466b193d533c877194124a)
fixed typo in SPOOLSS_SYNT
some cleanup of unused functions
wrote make_spoolss_enumprinter and make_spoolss_openprinterex for
rpcclient as I'm trying to keep in sync the parsing code between HEAD and
TNG.
Will commit changes to TNG after lunch.
J.F.
(This used to be commit 025cdb345f6de287a41d4449b2662dbc5e762bf2)
also added some prs_struct functions, 'cause I'm handling buffers as
prs_struct.
J.F.
(This used to be commit 81e375bbbe0fb022a44a2aaaa3729a9518b7a854)
pdus, and then feeds them over either a "local" function call or a "remote"
function call to an msrpc service. the "remote" msrpc daemon, on the
other side of a unix socket, then calls the same "local" function that
smbd would, if the msrpc service were being run from inside smbd.
this allows a transition from local msrpc services (inside the same smbd
process) to remote (over a unix socket).
removed reference to pipes_struct in msrpc services. all msrpc processing
functions take rpcsrv_struct which is a structure containing state info
for the msrpc functions to decode and create pdus.
created become_vuser() which does everything not related to connection_struct
that become_user() does.
removed, as best i could, connection_struct dependencies from the nt spoolss
printing code.
todo: remove dcinfo from rpcsrv_struct because this stores NETLOGON-specific
info on a per-connection basis, and if the connection dies then so does
the info, and that's a fairly serious problem.
had to put pretty much everything that is in user_struct into parse_creds.c
to feed unix user info over to the msrpc daemons. why? because it's
expensive to do unix password/group database lookups, and it's definitely
expensive to do nt user profile lookups, not to mention pretty difficult
and if you did either of these it would introduce a complication /
unnecessary interdependency. so, send uid/gid/num_groups/gid_t* +
SID+num_rids+domain_group_rids* + unix username + nt username + nt domain
+ user session key etc. this is the MINIMUM info identified so far that's
actually implemented. missing bits include the called and calling
netbios names etc. (basically, anything that can be loaded into
standard_sub() and standard_sub_basic()...)
(This used to be commit aa3c659a8dba0437c17c60055a6ed30fdfecdb6d)
- disabled (AGAIN) the GETDC "if (MAILSLOT\NTLOGON)" code that will get
NT5rc2 to work but WILL break win95 (AGAIN). this needs _not_ to be
re-enabled but to be replaced with a better mechanism.
- added SMBwrite support (note: SMBwriteX already existed) as NT5rc2 is
sending DCE/RPC over SMBwrite not SMBwriteX.
(This used to be commit 25c70e3c984c4fed19763ed405741e83fe14f87e)
the whole task is not complete, yet. xxx_io_xxx() routines that
_call_ xxx_io_xxx() routines not done.
prs_xxxx() covered by macros. considering doing xxx_io_xxxx in the same way.
(This used to be commit 3b583f7be51434af98bc52b48dfa42c4602a3094)
a problem i was having.
- added rudimentary CAP_STATUS32 support for same reason.
- added hard-coded, copy-the-same-data-from-over-the-wire version of
CAP_EXTENDED_SECURITY, which is a security-blob to encapsulate
GSSAPI which encodes
SPNEGO which is used to negotiate
Kerberos or NTLMSSP. i have implemented
NTLMSSP which negotiates
NTLMv1 or NTLMv2 and 40-bit or 128-bit etc. i have implemented
NTLMv1 / 40-bit.
*whew*.
(This used to be commit e5b80bd2f76fda70e41e4a9007eb035dab92ed8e)
include/ntdomain.h : added rpc_spoolss.h include statement
include/proto.h
include/rpc_dce.h : added definition of RPC_ALTER_CONTEXT request &
reply
param/loadparm.c : 2 new options for NT printing support and some
changes to initial values in the LPRNG case.
rpc_parse/parse_prs.c : added prs_uint16s()
rpc_parse/parse_rpc.c : added SYNT_SPOOLSS_V1 and code for the
alter-context support.
rpc_server/srv_pipe.c : alter-context support
smbd/nttrans.c
smbd/server.c
include/rpc_misc.h
Makefile.in
include/smb.h
Jean Francois
(This used to be commit 4c515804b70254248e378a3f90f47e4c32639d29)
command "at" (compatible with NT's "at" command - see rpcclient commit) -
useful for remote NT administration.
(This used to be commit cf30a472f702d7b50c3a85e2cf2f55b46a2bd452)
No more ugly static library buffers and all functions take a destination
string length (especially unistrcpy was rather dangerous; we were only
saved by the fact that datagrams are limited in size).
(This used to be commit a1d39af1ce1d451b811dbd7c2ba391214851b87e)
the pre-alpha "domain group" etc parameters have disappeared.
- interactive debug detection
- re-added mem_man (andrew's memory management, detects memory corruption)
- american spellings of "initialise" replaced with english spelling of
"initialise".
- started on "lookup_name()" and "lookup_sid()" functions. proper ones.
- moved lots of functions around. created some modules of commonly used
code. e.g the password file locking code, which is used in groupfile.c
and aliasfile.c and smbpass.c
- moved RID_TYPE_MASK up another bit. this is really unfortunate, but
there is no other "fast" way to identify users from groups from aliases.
i do not believe that this code saves us anything (the multipliers)
and puts us at a disadvantage (reduces the useable rid space).
the designers of NT aren't silly: if they can get away with a user-
interface-speed LsaLookupNames / LsaLookupSids, then so can we. i
spoke with isaac at the cifs conference, the only time for example that
they do a security context check is on file create. certainly not on
individual file reads / writes, which would drastically hit their
performance and ours, too.
- renamed myworkgroup to global_sam_name, amongst other things, when used
in the rpc code. there is also a global_member_name, as we are always
responsible for a SAM database, the scope of which is limited by the role
of the machine (e.g if a member of a workgroup, your SAM is for _local_
logins only, and its name is the name of your server. you even still
have a SID. see LsaQueryInfoPolicy, levels 3 and 5).
- updated functionality of groupname.c to be able to cope with names
like DOMAIN\group and SERVER\alias. used this code to be able to
do aliases as well as groups. this code may actually be better
off being used in username mapping, too.
- created a connect to serverlist function in clientgen.c and used it
in password.c
- initialisation in server.c depends on the role of the server. well,
it does now.
- rpctorture. smbtorture. EXERCISE EXTREME CAUTION.
(This used to be commit 0d21e1e6090b933f396c764af535ca3388a562db)
put unicode strings after SAMLOGON query regardless of whether it's
an NT mailslot or a non-NT mailslot, after having observed this behaviour
out of NT machines.
(This used to be commit c101113ec20ed0ba633e78e4ee45596cdccaf1b5)
