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This seperation between the structure used inside the auth modules and
in the wider codebase allows for a gradual migration from struct
auth_serversupplied_info -> struct auth_session_info (from auth.idl)
The idea here is that we keep a clear seperation between the structure
before and after the local groups, local user lookup and the session
key modifications have been processed, as the lack of this seperation
has caused issues in the past.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
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Signed-off-by: Andrew Bartlett <abartlet@samba.org>
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Signed-off-by: Andrew Bartlett <abartlet@samba.org>
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Signed-off-by: Andrew Bartlett <abartlet@samba.org>
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There is no reason this can't be a normal constant string in the
loadparm system, now that we have lp_set_cmdline() to handle overrides
correctly.
Andrew Bartlett
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This is needed for OpenChange, which prints Samba struct server_id
values in debug messages.
Andrew Bartlett
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security blob size is greater than 16 kB
We were not correctly checking the output of asn1_start_tag().
asn1_start_tag() returns -1 and sets data->has_error if the
remaining blob size is too short to contain the tag length.
We were checking data->has_error and returning NT_STATUS_OK
(to allow the second asn.1 parse to fail in that case). We
should not be checking data->has_error in this case, but
falling through to the code that already checks the length.
Thanks to Jim for reproducing this for me. We don't get bitten
by this as we announce a max buffer size of 16k, greater than
Windows's 4k, which means that most krb5 spnego packets already
fit.
Jeremy.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Fri May 27 02:57:27 CEST 2011 on sn-devel-104
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Guenther
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Guenther
Autobuild-User: Günther Deschner <gd@samba.org>
Autobuild-Date: Thu Apr 14 01:31:39 CEST 2011 on sn-devel-104
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Before a auth_serversupplied_info struct can be used for
authorization, the local groups and privileges must be calculated.
create_local_token() now copies the server_info, and then sets the
calulated token and unix groups.
Soon, it will also transform the result into an expanded struct
auth_session_info. Until then, the variable name (server_info vs
session_info provides a clue to the developer about what information
has been entered in the structure).
By moving the calls to create_local_token within the codebase, we
remove duplication, and ensure that the session key (where modified)
is consistently copied into the new structure.
Andrew Bartlett
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This ensures that all callers don't need to each add builtin groups
and privileges to the user's token
Andrew Bartlett
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Guenther
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Guenther
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Guenther
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Guenther
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Guenther
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These variables, of type struct auth_serversupplied_info were poorly
named when added into 2001, and in good consistant practice, this has
extended all over the codebase in the years since.
The structure is also not ideal for it's current purpose. Originally
intended to convey the results of the authentication modules, it
really describes all the essential attributes of a session. This
rename will reduce the volume of a future patch to replaced these with
a struct auth_session_info, with auth_serversupplied_info confined to
the lower levels of the auth subsystem, and then eliminated.
(The new structure will be the output of create_local_token(), and the
change in struct definition will ensure that this is always run, populating
local groups and privileges).
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
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This will allow the auth_serversupplied_info struct to be migrated
to auth_session_info easier.
Adnrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
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called-parameter-is-modified.
Jeremy.
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Found by the CodeNomicon test suites at the SNIA plugfest.
http://www.codenomicon.com/
If an invalid SPNEGO packet contains no OIDs we crash in the SMB1/SMB2 server
as we indirect the first returned value OIDs[0], which is returned as NULL.
Jeremy.
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The previous API was not clear as to who owned the returned session key.
This fixes a valgrind-found use-after-free in the NTLMSSP key derivation code,
and avoids making allocations - we steal and zero instead.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
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Signed-off-by: Günther Deschner <gd@samba.org>
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Signed-off-by: Günther Deschner <gd@samba.org>
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Guenther
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Guenther
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contexts.
Jeremy.
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use of malloc, and data_blob().
Jeremy.
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Signed-off-by: Andrew Bartlett <abartlet@samba.org>
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Rename it to auth_ntlmssp_steal_server_info() to make it clear that
the server_info struct is stolen from the auth_ntlmssp_state structure.
Use talloc_move instead of manual steal&clear
Add comments to explain what is going on.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
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negTokenInit's here. Use common code in spnego_parse_negTokenInit().
Jeremy.
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Turn auth_ntlmssp_end into a destructor and attach it to auth_ntlmssp_state.
Remote auth_ntlmssp_end and use TALLOC_FREE in the callers.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
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Turn the freeing function into a destructor and attach it to the
auth_context.
Make all callers TALLOC_FREE() the auth_context instead of calling
the free function.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
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and raw) under SMB2. Still need to investigate fixing this with krb5
auth (does this make sense ?).
Jeremy.
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This fixes a bug where register_existing_vuid() could be called with a
NULL server_info if the alloction failed.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
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Nothing will free this, so this prevents a memory leak.
Andrew Bartlett
Signed-off-by: Jelmer Vernooij <jelmer@samba.org>
Signed-off-by: Andrew Tridgell <tridge@samba.org>
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The register_existing_vuid() call will handle both the ntlmssp_end and
vuid invalidation internally, so we don't want to do it again.
Andrew Bartlett
Signed-off-by: Jelmer Vernooij <jelmer@samba.org>
Signed-off-by: Andrew Tridgell <tridge@samba.org>
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