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* cygheap.h (class cygheap_domain_info): Remove lowest_tdo_posix_offset.

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* ldap.cc (cyg_ldap::fetch_posix_offset_for_domain): Return UINT32_MAX
	in case of error.
	* security.h (PRIMARY_POSIX_OFFSET): Define.
	(NOACCESS_POSIX_OFFSET): Define.
	(UNUSABLE_POSIX_OFFSET): Define.
	* uinfo.cc (cygheap_domain_info::init): Drop initializing
	lowest_tdo_posix_offset.
	(pwdgrp::fetch_account_from_file): Set PosixOffset to either
	UNUSABLE_POSIX_OFFSET or NOACCESS_POSIX_OFFSET in case we don't get a
	sensible offset from AD.  Explain why.  Drop setting ch
	lowest_tdo_posix_offset.
	(pwdgrp::fetch_account_from_windows): Replace constant 0x100000 with
	PRIMARY_POSIX_OFFSET throughout.
This commit is contained in:
Corinna Vinschen
2014-07-29 08:53:13 +00:00
parent ca6a65aa64
commit 898e26c82f
5 changed files with 49 additions and 20 deletions
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10
winsup/cygwin/security.h
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@@ -24,6 +24,16 @@ void uinfo_init ();
#define ILLEGAL_UID ((uid_t)-1)
#define ILLEGAL_GID ((gid_t)-1)
/* Offset for accounts in the primary domain of the machine. */
#define PRIMARY_POSIX_OFFSET (0x00100000)
/* Fake POSIX offsets used in scenarios in which the account has no permission
to fetch the POSIX offset, or when the admins have set the offset to an
unreasonable low value. The values are chosen in the hope that they won't
collide with "real" offsets. */
#define NOACCESS_POSIX_OFFSET (0xfe500000)
#define UNUSABLE_POSIX_OFFSET (0xfea00000)
/* For UNIX accounts not mapped to Windows accounts via winbind, Samba returns
SIDs of the form S-1-22-x-y, with x == 1 for users and x == 2 for groups,
and y == UNIX uid/gid. NFS returns no SIDs at all, but the plain UNIX