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Currently the only backend which works is smbpasswd (tdb, LDAP, and NIS+)
are broken, but they were somewhat broken before. :)
The following functions implement the storage manipulation interface
/*The following definitions come from passdb/pdb_smbpasswd.c */
BOOL pdb_setsampwent (BOOL update);
void pdb_endsampwent (void);
SAM_ACCOUNT* pdb_getsampwent (void);
SAM_ACCOUNT* pdb_getsampwnam (char *username);
SAM_ACCOUNT* pdb_getsampwuid (uid_t uid);
SAM_ACCOUNT* pdb_getsampwrid (uint32 rid);
BOOL pdb_add_sam_account (SAM_ACCOUNT *sampass);
BOOL pdb_update_sam_account (SAM_ACCOUNT *sampass, BOOL override);
BOOL pdb_delete_sam_account (char* username);
There is also a host of pdb_set..() and pdb_get..() functions for
manipulating SAM_ACCOUNT struct members. Note that the struct
passdb_ops {} has gone away. Also notice that struct smb_passwd
(formally in smb.h) has been moved to passdb/pdb_smbpasswd.c
and is not accessed outisde of static internal functions in this
file. All local password searches should make use of the the SAM_ACCOUNT
struct and the previously mentioned functions.
I'll write some documentation for this later. The next step is to fix
the TDB passdb backend, then work on spliting the backends out into
share libraries, and finally get the LDAP backend going.
What works and may not:
o domain logons from Win9x works
o domain logons from WinNT 4 works
o user and group enumeration
as implemented by Tim works
o file and print access works
o changing password from
Win9x & NT ummm...i'll fix this tonight :)
If I broke anything else, just yell and I'll fix it. I think it
should be fairly quite.
-- jerry
through to the individual pipe api calls. Instead of passing two
prs_struct pointers, we now pass the pipes_struct pointer which contains
the former information as well as other useful stuff like the vuid.
Removed dependency on extern current_user and fetch the vuid from the
pipes_struct.
userdom_struct. As the name implies this also contains a domain
(unused at the moment).
This will be important shortly, as operation in appliance mode needs
the domain to be always carried with the username.
assumption that we have one socket everywhere
while doing so I discovered a few bugs!
1) the clientgen session retarget code if used from smbd or nmbd would
cause a crash as it called close_sockets() which closed our main
socket! fixed by removing close_sockets() completely - it is unnecessary
2) the caching in client_addr() and client_name() was bogus - it could
easily get fooled and give the wrong result. fixed.
3) the retarget could could recurse, allowing an easy denial of
service attack on nmbd. fixed.
include/byteorder.h: Added alignment macros.
include/nameserv.h: Added defines for msg_type field options - from rfc1002.
lib/time.c: Typo fix.
lib/util_unistr.c: Updates from UNICODE branch.
printing/nt_printing.c: bzero -> memset.
smbd/connection.c: Added check for UT_SYSLEN for utmp code.
Other fixes : Rollback of unapproved commit from Luke.
Please *ask* next time before doing large changes to HEAD.
Jeremy.
the spoolss code (it's cut from TNG) and the smb-dce/rpc interface
code that jeremy has been working up to TNG-functionality.
i also want this message to go into SAMBA_2_0 and SAMBA_2_0_RELEASE,
because it is intolerable that potentially good modifications be made
to code that is going to be thrown away, and people waste their time
fixing bugs and adding enhancements that have already been carried
out already, up to two years ago in the TNG branch.
/*
* THIS CODE IS OUT-OF-DATE BY TWO YEARS, IS LEGACY DESIGN AND VERY, VERY,
* INCOMPLETE. PLEASE DO NOT MAKE ANY FURTHER ENHANCEMENTS TO THIS CODE
* UNLESS THEY ARE ALSO CARRIED OUT IN THE SAMBA_TNG BRANCH.
*
* PLEASE DO NOT TREAT THIS CODE AS AUTHORITATIVE IN *ANY* WAY.
*
* REPEAT, PLEASE DO NOT MAKE ANY MODIFICATIONS TO THIS CODE WITHOUT
* FIRST CHECKING THE EQUIVALENT MODULE IN SAMBA_TNG, UPDATING THAT
* FIRST, *THEN* CONSIDER MAKING THE SAME MODIFICATION IN THIS BRANCH
*
* YOU WILL, ALMOST GUARANTEED, FIND THAT THE BUG-FIX OR ENHANCEMENT THAT
* YOU THINK IS NECESSARY, HAS ALREADY BEEN IMPLEMENTED IN SAMBA_TNG.
* IF IT HAS NOT, YOUR BUG-FIX OR ENHANCEMENT *MUST* GO INTO SAMBA_TNG
* AS THE SAMBA_TNG CODE WILL REPLACE THIS MODULE WITHOUT REFERENCE TO
* ANYTHING IN IT, WITH THE POSSIBLE RISK THAT THE BUG-FIX OR ENHANCEMENT
* MAY BE LOST.
*
* PLEASE OBSERVE AND RESPECT THIS SIMPLE REQUEST.
*
* THANK YOU.
*
* lkcl@samba.org
*/
done a minimal amout of clean-up in the Makefile, removing unnecessary
modules from the link stage. this is not complete, yet, and will
involve some changes, for example to smbd, to remove dependencies on
the password database API that shouldn't be there. for example,
smbd should not ever call getsmbpwXXX() it should call the Samr or Lsa
API.
this first implementation has minor problems with not reinstantiating
the same services as the caller. the "homes" service is a good example.
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()...)
these _may_ not actually ever get used, as trust relationships
really need to be established with shared secrets, and you need
to get the SID of the trusted and trusting domains, so this
may have to go in a private/xxx.mac file.
* Added SEC_CHAN_BDC
* Fix for endianness problem reported by Edan Idzerda <edan@mtu.edu>. A
BUFFER2 is really a "unibuf" in my terminology and we should treat it as
such.
* Added some more common NT structures (BIGINT, BUFHDR2, BUFFER4).
* Added NET_SAM_SYNC (-> NetDatabaseSync2) RPC for account replication.
Still experimental and incomplete, with a few too many NULL security
descriptors lying around (must go look at Jeremy's SD code). Haven't
worked out password encryption yet either.
However, the XXX_INFO structures I've added to rpc_netlogon.h are quite
nice as they give some insight into how these objects are stored in the
SAM.
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).
pwdb_sam_map_names() was using a "blank" static string instead of
a NULL pointer for nt names. NULL means over-ride, so the nt name
got left as "blank".
this causes nt clients to terminate with extreme prejudice.
around anyway.
The real problem is, once again, the brokenness of pwdb_sam_map_names et al.
This time it is deciding to return blank NT usernames, which NT's redirector
objects to.
I'm currently working on improving the pwdb/mapping code, should be ready in a
couple of weeks.
i may simply go for a response in the NetSamLogon returning the
unix username, forcing the NT user to appear to be a unix user,
however even that is fraught with implications.
might just have to go the whole hog and do this tuple thing,
"unix_name + nt_name" always associated together...
issue with api_net_sam_logon, getsam21pwent() being called twice,
the second time overwriting static buffer data (argh) so had to
make a copy.
noticed a nested "become_root()"/"unbecome_root()" which will have
to be tracked down...
- split sam_passwd and smb_passwd into separate higher-order function tables
- renamed struct smb_passwd's "smb_user" to "unix_user". added "nt_user"
plus user_rid, and added a "wrap" function in both sam_passwd and smb_passwd
password databases to fill in the blank entries that are not obtained
from whatever password database API instance is being used.
NOTE: whenever a struct smb_passwd or struct sam_passwd is used, it MUST
be initialised with pwdb_sam_init() or pwd_smb_init(), see chgpasswd.c
for the only example outside of the password database APIs i could find.
- added query_useraliases code to rpcclient.
- dealt with some nasty interdependencies involving non-smbd programs
and the password database API. this is still not satisfactorily
resolved completelely, but it's the best i can do for now.
- #ifdef'd out some password database options so that people don't
mistakenly set them unless they recompile to _use_ those options.
lots of debugging done, it's still not finished. the unix/NT uid/gid
and user-rid/group-rid issues are better, but not perfect. the "BUILTIN"
domain is still missing: users cannot be added to "BUILTIN" groups yet,
as we only have an "alias" db API and a "group" db API but not "builtin-alias"
db API...
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.
changes from yesterday by me, jeremy and andrew.
jeremy, your ACB_PWNOTREQ mod would have caused a crash if the user
didn't exist (first check should be for smb_pass != NULL)
