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smbd, and also makes it much cleaner inside winbindd.
It is mostly my code, with a few changes and testing performed by Alexander
Bokovoy <a.bokovoy@sam-solutions.net>. ab has tested it in security=domain and
security=ads, but more testing is always appricatiated.
The idea is that we no longer cart around a 'domain\user' string, we keep them
seperate until the last moment - when we push that string into a pwent on onto
the socket.
This removes the need to be constantly parsing that string - the domain prefix
is almost always already provided, (only a couple of functions actually changed
arguments in all this).
Some consequential changes to the RPC client code, to stop it concatonating the
two strings (it now passes them both back as params).
I havn't changed the cache code, however the usernames will no longer have a
double domain prefix in the key string. The actual structures are unchanged
- but the meaning of 'username' in the 'rid' will have changed. (The cache is
invalidated at startup, so on-disk formats are not an issue here).
Andrew Bartlett
(This used to be commit e870f0e727952aeb8599cf93ad2650ae56eca033)
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This work was sponsored by Optifacio Software Services, Inc.
Andrew Bartlett
(various e-mails announcements merged into some form of commit message below:)
This patch which adds basics of universal groups support
into Samba 3. Currently, only Winbind with RPC calls supports this, ADS
support requires additional (possibly huge) work on KRB5 PAC. However,
basic infrastructure is here.
This patch adds:
1. Storing of universal groups for particular user logged into Samba
software (smbd/ two winbind-pam methods) into netlogon_unigrp.tdb as array
of uint32 supplemental group rids keyed as DOMAIN_SID/USER_RID in tdb.
2. Fetching of unversal groups for given user rid and domain sid from
netlogon_unigrp.tdb.
Since this is used in both smbd and winbindd, main code is in
source/lib/netlogon_uingrp.c. Dependencies are added to AUTH_OBJ as
UNIGRP_OBJ and WINBINDD_OBJ as UNIGRP_OBJ.
This patch has had a few versions, the final version in particular:
Many thanks to Andrew Bartlett for critics and comments, and partly
rewritten code.
New:
- updated fetching code to changed byte order macros
- moved functions to proper namespace
- optimized memory usage by reusing caller's memory context
- enhanced code to more follow Samba coding rules
Todo:
- proper universal group expiration after timeout
(This used to be commit 80c2aefbe7c1aa363dd286a47d50c5d8b4595f43)
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when they are added or removed on the PDC.
- renamed GETPWNAM_FROM_{UID,USER} constants and functions to GETPW{NAM,UID}
- renamed GETGRNAM_FROM_{GID,GROUP} constants and functions to GETGR{NAM,GID}
- use SIGUSR2 in winbindd for debugging/logging instead of SIGUSR1 in
preparation for moving to smbcontrol type messages (not sure whether to
ditch this altogether or not)
- tidy debugging messages in top level winbind user and group routines
- convert talloc_init() to talloc_init_named()
- make enumerations of the domain list use the same local variable names
(This used to be commit eeb8af9c1a66bfcd80823d7b406acbab79857a16)
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I tried testing this by lowering the buffer size in
cli_samr_enum_dom_groups() but that didn't work - I think this needs
more looking into
(This used to be commit 34328e30315e4b42087d0ee11ed0c3fb715bc250)
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(This used to be commit 1c909afe76566807fb576c965eb869f98e72f2bd)
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(This used to be commit 24aa09ff3dd128c6f12b4cb072943ff668a29a67)
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consistent backends (like ADS) always give correct primary group
info, so we can play cache tricks to speed things up a lot
inconsistent backends (like MSRPC) need to fetch stuff more often
(This used to be commit 217c39f23282e20f96a61a0d5a2434b3f5f66a86)
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the backends
at startup, loop until we get the domain sid for our primary domain,
trying every 10 seconds. This makes winbindd handle a room-wide power
failure better
(This used to be commit 7c60ae59378be1b2af2e57ee3927966a29a797a5)
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this one looks like just another winbind backend, and has the
following properties:
- does -ve and +ve cacheing of all queries
- can be disabled with -n switch to winbindd
- stores all records packed, so even huge domains are not a problem
for a complete cache
- handles the server being down
- uses sequence numbers for all entries
This fixes a lot of problems with winbindd. Serving from cache is now
*very* fast.
(This used to be commit fddb4f4c04473a60a97212c0c8e143d6a4d68380)
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sequence number via ldap when using ads
(This used to be commit 9a084f0bb91883224ad44e2b76417d10c15cce42)
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now do searches on SID. This allows me to do a true ldap sid_to_name()
function
one one function to go!
(This used to be commit 7d44aa3915bc88fd2b2f8454f190b11677cbb848)
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winbindd/ADS can now do initgroups()
(This used to be commit 43edeaca9f3a42699131939ed0d917111f57b678)
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(This used to be commit 689f45d2079d06b09947b2cdd314867df98c938d)
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fixed a winbindd crash when the group membership can't be looked up
(This used to be commit 088f4cc5be4a1a38781e4d019146d53993ed8c6f)
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(This used to be commit 80010d80f93cfb32c53a1720c7564fb080846f35)
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I spent quite a while trying to work out how to make this call
via ldap and failed. I then found that MS servers seem use rpc
for sid_to_name, and it works even when in native mode, I ended
up just implementing it via rpc
(This used to be commit 789833b44e342c0b5de463ed8f9b5f7474a99f27)
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(This used to be commit 816e40a51af80a7f703c0451304de406deab3dd8)
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least basic operations work
(This used to be commit 88241cab983b2c7db7d477c6c4654694a7a56cd3)
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also created winbindd_rpc.c which contains the functions that
have been converted to the new structure. There will soon be
a winbindd_ads.c for the ldap backend
(This used to be commit e4ccc602ba65838646f2632120069f3274619dd9)
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