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get ready and fix se_access_check().
Added cannonical lookup_name(), lookup_sid(), uid_to_sid(), gid_to_sid()
functions that look via winbind first the fall back on local lookup.
All Samba should use these rather than trying to call winbindd code
directly.
Added NT_USER_TOKEN struct in user_struct, contains list of NT sids
associated with this user.
se_access_check() should use this (cached) value rather than attempting
to do the same thing itself when given a uid/gid pair.
More work needs to be done to preserve these things accross security
context changes (especially with the tricky pipe problem) but I'm
beginning to see how this will be done..... probably by registering
a new vuid for an authenticated RPC pipe and not treating the
pipe calls specially.
More thoughts needed - but we're almost there...
Jeremy.
(This used to be commit 5e5cc6efe2e4687be59085f562caea1e2e05d0a8)
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Jeremy.
(This used to be commit 2aa21db960666736331b18956422b7c13aad0f0f)
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jreilly@hp.com.
Memory leak fix for new sec_ctx code (sorry Tim :-).
Jeremy.
(This used to be commit edaf49c66d5a5ccf6689b358c301e208599a468f)
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code. This code is now implemented as a stack of security contexts, where
a security context is defined as a set of effective user, group and
supplementary group ids.
The following functions are implemented:
BOOL push_sec_ctx(void);
Create a new security context on the stack which is the same as the
current security context.
void set_sec_ctx(uid_t uid, gid_t gid, int ngroups, gid_t *groups);
Set the current security context to a given set of user and group
ids.
void set_root_sec_ctx(void);
Set to uid = gid = 0. No supplementary groups are set.
BOOL pop_sec_ctx(void);
Pop a security context from the stack and restore the user and group
permissions of the previous context.
void init_sec_ctx(void);
Initialise the security context stack. This must be called before any
of the other operations are used or weird things may happen.
The idea is that there is a base security context which is either root or
some authenticated unix user. Other security contexts can be pushed and
popped as needed for things like changing passwords, or rpc pipe operations
where the rpc pipe user is different from the smb user.
(This used to be commit 87c78d6d5a6bf8d0907d6f8ef5ee0d642946cad3)
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