* grp.cc (pwdgrp::parse_group): Call cygsid::getfromgr_passwd. * passwd.cc (pwdgrp::parse_passwd): Call cygsid::getfrompw_gecos. * pwdgrp.h (cygsid::getfrompw): Implement as inline method here, accessing pg_pwd's sid member directly. (cygsid::getfromgr): Implement as inline method here, accessing pg_grp's sid member directly. * sec_auth.cc (extract_nt_dom_user): Call cygsid::getfrompw_gecos. Explain why. * sec_helper.cc (cygsid::getfrompw): Drop implementation. (cygsid::getfromgr): Ditto. * security.h (cygsid::getfrompw_gecos): Implement former getfrompw inline here. (cygsid::getfromgr_passwd): Implement former getfromgr inline here. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
		
			
				
	
	
		
			570 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			570 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/* security.h: security declarations
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   Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
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   2011, 2012, 2013, 2014, 2015 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
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details. */
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#pragma once
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#include <accctrl.h>
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#include <dsgetdc.h>
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/* Special file attribute set, for instance, in open() and mkdir() to
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   flag that a file has just been created.  Used in alloc_sd, see there. */
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#define S_JUSTCREATED 0x80000000
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/* UID/GID */
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void uinfo_init ();
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#define ILLEGAL_UID ((uid_t)-1)
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#define ILLEGAL_GID ((gid_t)-1)
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/* Offset for accounts in the primary domain of the machine. */
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#define PRIMARY_POSIX_OFFSET		(0x00100000)
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/* Fake POSIX offsets used in scenarios in which the account has no permission
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   to fetch the POSIX offset, or when the admins have set the offset to an
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   unreasonable low value.  The values are chosen in the hope that they won't
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   collide with "real" offsets. */
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#define NOACCESS_POSIX_OFFSET		(0xfe500000)
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#define UNUSABLE_POSIX_OFFSET		(0xfea00000)
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/* For UNIX accounts not mapped to Windows accounts via winbind, Samba returns
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   SIDs of the form S-1-22-x-y, with x == 1 for users and x == 2 for groups,
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   and y == UNIX uid/gid.  NFS returns no SIDs at all, but the plain UNIX
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   uid/gid values.
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   UNIX uid/gid values are mapped to Cygwin uid/gid values 0xff000000 +
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   unix uid/gid.  This *might* collide with a posix_offset of some trusted
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   domain, but it's *very* unlikely.  Define the mapping as macro. */
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#define UNIX_POSIX_OFFSET		(0xff000000)
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#define UNIX_POSIX_MASK			(0x00ffffff)
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#define MAP_UNIX_TO_CYGWIN_ID(id)	(UNIX_POSIX_OFFSET \
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					 | ((id) & UNIX_POSIX_MASK))
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#ifndef __x86_64__
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#define ILLEGAL_UID16 ((__uid16_t)-1)
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#define ILLEGAL_GID16 ((__gid16_t)-1)
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#define uid16touid32(u16)  ((u16)==ILLEGAL_UID16?ILLEGAL_UID:(uid_t)(u16))
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#define gid16togid32(g16)  ((g16)==ILLEGAL_GID16?ILLEGAL_GID:(gid_t)(g16))
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#endif
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#define MAX_DACL_LEN(n) (sizeof (ACL) \
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		   + (n) * (sizeof (ACCESS_ALLOWED_ACE) - sizeof (DWORD) \
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			    + SECURITY_MAX_SID_SIZE))
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#define SD_MIN_SIZE (sizeof (SECURITY_DESCRIPTOR) + MAX_DACL_LEN (1))
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#define ACL_MAXIMUM_SIZE 65532	/* Yeah, right.  64K - sizeof (DWORD). */
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#define SD_MAXIMUM_SIZE 65536
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#define NO_SID ((PSID)NULL)
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#ifndef SE_CREATE_TOKEN_PRIVILEGE
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#define SE_CREATE_TOKEN_PRIVILEGE            2U
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#define SE_ASSIGNPRIMARYTOKEN_PRIVILEGE      3U
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#define SE_LOCK_MEMORY_PRIVILEGE             4U
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#define SE_INCREASE_QUOTA_PRIVILEGE          5U
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#define SE_MACHINE_ACCOUNT_PRIVILEGE         6U
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#define SE_TCB_PRIVILEGE                     7U
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#define SE_SECURITY_PRIVILEGE                8U
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#define SE_TAKE_OWNERSHIP_PRIVILEGE          9U
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#define SE_LOAD_DRIVER_PRIVILEGE            10U
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#define SE_SYSTEM_PROFILE_PRIVILEGE         11U
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#define SE_SYSTEMTIME_PRIVILEGE             12U
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#define SE_PROF_SINGLE_PROCESS_PRIVILEGE    13U
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#define SE_INC_BASE_PRIORITY_PRIVILEGE      14U
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#define SE_CREATE_PAGEFILE_PRIVILEGE        15U
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#define SE_CREATE_PERMANENT_PRIVILEGE       16U
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#define SE_BACKUP_PRIVILEGE                 17U
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#define SE_RESTORE_PRIVILEGE                18U
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#define SE_SHUTDOWN_PRIVILEGE               19U
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#define SE_DEBUG_PRIVILEGE                  20U
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#define SE_AUDIT_PRIVILEGE                  21U
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#define SE_SYSTEM_ENVIRONMENT_PRIVILEGE     22U
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#define SE_CHANGE_NOTIFY_PRIVILEGE          23U
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#define SE_REMOTE_SHUTDOWN_PRIVILEGE        24U
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#define SE_UNDOCK_PRIVILEGE                 25U
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#define SE_SYNC_AGENT_PRIVILEGE             26U
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#define SE_ENABLE_DELEGATION_PRIVILEGE      27U
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#define SE_MANAGE_VOLUME_PRIVILEGE          28U
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#define SE_IMPERSONATE_PRIVILEGE            29U
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#define SE_CREATE_GLOBAL_PRIVILEGE          30U
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/* Starting with Vista */
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#define SE_TRUSTED_CREDMAN_ACCESS_PRIVILEGE 31U
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#define SE_RELABEL_PRIVILEGE                32U
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#define SE_INCREASE_WORKING_SET_PRIVILEGE   33U
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#define SE_TIME_ZONE_PRIVILEGE              34U
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#define SE_CREATE_SYMBOLIC_LINK_PRIVILEGE   35U
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#define SE_MAX_WELL_KNOWN_PRIVILEGE SE_CREATE_SYMBOLIC_LINK_PRIVILEGE
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#endif /* ! SE_CREATE_TOKEN_PRIVILEGE */
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/* Added for debugging purposes. */
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typedef struct {
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  BYTE  Revision;
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  BYTE  SubAuthorityCount;
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  SID_IDENTIFIER_AUTHORITY IdentifierAuthority;
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  DWORD SubAuthority[SID_MAX_SUB_AUTHORITIES];
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} DBGSID, *PDBGSID;
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/* Macro to define variable length SID structures */
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#define MKSID(name, comment, authority, count, rid...) \
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static NO_COPY struct  { \
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  BYTE  Revision; \
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  BYTE  SubAuthorityCount; \
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  SID_IDENTIFIER_AUTHORITY IdentifierAuthority; \
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  DWORD SubAuthority[count]; \
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} name##_struct = { SID_REVISION, count, {authority}, {rid}}; \
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cygpsid NO_COPY name = (PSID) &name##_struct;
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#define FILE_READ_BITS   (FILE_READ_DATA | GENERIC_READ | GENERIC_ALL)
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#define FILE_WRITE_BITS  (FILE_WRITE_DATA | GENERIC_WRITE | GENERIC_ALL)
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#define FILE_EXEC_BITS   (FILE_EXECUTE | GENERIC_EXECUTE | GENERIC_ALL)
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/* Convenience macros.  The Windows SID access functions are crude. */
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#define sid_id_auth(s)		\
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	(RtlIdentifierAuthoritySid (s)->Value[5])
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#define sid_sub_auth_count(s)	\
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	(*RtlSubAuthorityCountSid ((s)))
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#define sid_sub_auth(s,i)	\
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	(*RtlSubAuthoritySid ((s),(i)))
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#define sid_sub_auth_rid(s)	\
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	(*RtlSubAuthoritySid ((s), (*RtlSubAuthorityCountSid ((s)) - 1)))
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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  /* We need these declarations, otherwise g++ complains that the below
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     inline methods use an undefined function, if ntdll.h isn't included. */
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  BOOLEAN NTAPI RtlEqualSid (PSID, PSID);
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  NTSTATUS NTAPI RtlCopySid (ULONG, PSID, PSID);
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#ifdef __cplusplus
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}
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#endif
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class cyg_ldap;
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class cygpsid {
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protected:
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  PSID psid;
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public:
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  cygpsid () {}
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  cygpsid (PSID nsid) { psid = nsid; }
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  operator PSID () const { return psid; }
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  const PSID operator= (PSID nsid) { return psid = nsid;}
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  uid_t get_id (BOOL search_grp, int *type, cyg_ldap *pldap);
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  int get_uid (cyg_ldap *pldap) { return get_id (FALSE, NULL, pldap); }
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  int get_gid (cyg_ldap *pldap) { return get_id (TRUE, NULL, pldap); }
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  PWCHAR pstring (PWCHAR nsidstr) const;
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  PWCHAR string (PWCHAR nsidstr) const;
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  char *pstring (char *nsidstr) const;
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  char *string (char *nsidstr) const;
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  bool operator== (const PSID nsid) const
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    {
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      if (!psid || !nsid)
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	return nsid == psid;
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      return RtlEqualSid (psid, nsid);
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    }
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  bool operator!= (const PSID nsid) const
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    { return !(*this == nsid); }
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  bool operator== (const char *nsidstr) const;
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  bool operator!= (const char *nsidstr) const
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    { return !(*this == nsidstr); }
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  void debug_print (const char *prefix = NULL) const
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    {
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      char buf[256] __attribute__ ((unused));
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      debug_printf ("%s %s", prefix ?: "", string (buf) ?: "NULL");
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    }
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};
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class cygsid : public cygpsid {
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  char sbuf[SECURITY_MAX_SID_SIZE];
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  bool well_known_sid;
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  const PSID getfromstr (PCWSTR nsidstr, bool well_known);
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  const PSID getfromstr (const char *nsidstr, bool well_known);
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  PSID get_sid (DWORD s, DWORD cnt, DWORD *r, bool well_known);
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  inline const PSID assign (const PSID nsid, bool well_known)
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    {
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      if (!nsid)
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	psid = NO_SID;
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      else
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	{
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	  psid = (PSID) sbuf;
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	  RtlCopySid (SECURITY_MAX_SID_SIZE, psid, nsid);
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	  well_known_sid = well_known;
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	}
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      return psid;
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    }
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public:
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  inline operator const PSID () { return psid; }
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  inline bool is_well_known_sid () { return well_known_sid; }
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  /* Both, = and *= are assignment operators.  = creates a "normal" SID,
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     *= marks the SID as being a well-known SID.  This difference is
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     important when creating a SID list for LSA authentication. */
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  inline const PSID operator= (cygsid &nsid)
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    { return assign (nsid, nsid.well_known_sid); }
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  inline const PSID operator= (const PSID nsid)
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    { return assign (nsid, false); }
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  inline const PSID operator= (PCWSTR nsidstr)
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    { return getfromstr (nsidstr, false); }
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  inline const PSID operator= (const char *nsidstr)
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    { return getfromstr (nsidstr, false); }
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  inline const PSID operator*= (cygsid &nsid)
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    { return assign (nsid, true); }
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  inline const PSID operator*= (const PSID nsid)
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    { return assign (nsid, true); }
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  inline const PSID operator*= (PCWSTR nsidstr)
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    { return getfromstr (nsidstr, true); }
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  inline const PSID operator*= (const char *nsidstr)
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    { return getfromstr (nsidstr, true); }
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  inline cygsid () : cygpsid ((PSID) sbuf), well_known_sid (false) {}
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  inline cygsid (const PSID nsid) { *this = nsid; }
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  inline cygsid (const char *nstrsid) { *this = nstrsid; }
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  inline cygsid (cygsid &nsid) { *this = nsid; }
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  inline PSID set () { return psid = (PSID) sbuf; }
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  inline BOOL getfrompw_gecos (const struct passwd *pw)
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    {
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      char *sp = (pw && pw->pw_gecos) ? strrchr (pw->pw_gecos, ',') : NULL;
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      return (*this = sp ? sp + 1 : sp) != NO_SID;
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    }
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  inline BOOL getfromgr_passwd (const struct group *gr)
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    {
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      char *sp = (gr && gr->gr_passwd) ? gr->gr_passwd : NULL;
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      return (*this = sp) != NO_SID;
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    }
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  /* Implemented in pwdgrp.h. */
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  BOOL getfrompw (const struct passwd *pw);
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  BOOL getfromgr (const struct group *gr);
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  void debug_print (const char *prefix = NULL) const
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    {
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      char buf[256] __attribute__ ((unused));
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      debug_printf ("%s %s%s", prefix ?: "", string (buf) ?: "NULL", well_known_sid ? " (*)" : " (+)");
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    }
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};
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typedef enum { cygsidlist_empty, cygsidlist_alloc, cygsidlist_auto } cygsidlist_type;
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class cygsidlist {
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  int maxcnt;
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  int cnt;
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  BOOL add (const PSID nsi, bool well_known); /* Only with auto for now */
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public:
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  cygsid *sids;
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  cygsidlist_type type;
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  cygsidlist (cygsidlist_type t, int m)
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  : maxcnt (m), cnt (0), type (t)
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    {
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      if (t == cygsidlist_alloc)
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	sids = alloc_sids (m);
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      else
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	sids = new cygsid [m];
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    }
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  ~cygsidlist () { if (type == cygsidlist_auto) delete [] sids; }
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  BOOL addfromgr (struct group *gr) /* Only with alloc */
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    { return sids[cnt].getfromgr (gr) && ++cnt; }
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  /* += adds a "normal" SID, *= adds a well-known SID.  See comment in class
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     cygsid above. */
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  BOOL operator+= (cygsid &si) { return add ((PSID) si,
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					     si.is_well_known_sid ()); }
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  BOOL operator+= (const char *sidstr) { cygsid nsi (sidstr);
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					 return add ((PSID) nsi,
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						     nsi.is_well_known_sid ());
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				       }
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  BOOL operator+= (const PSID psid) { return add (psid, false); }
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  BOOL operator*= (cygsid &si) { return add ((PSID) si, true); }
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  BOOL operator*= (const char *sidstr) { cygsid nsi (sidstr);
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					 return add ((PSID) nsi, true); }
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  BOOL operator*= (const PSID psid) { return add (psid, true); }
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  void count (int ncnt)
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    { cnt = ncnt; }
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  int count () const { return cnt; }
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  int non_well_known_count () const
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    {
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      int wcnt = 0;
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      for (int i = 0; i < cnt; ++i)
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	if (!sids[i].is_well_known_sid ())
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	  ++wcnt;
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      return wcnt;
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    }
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  int position (const PSID sid) const
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    {
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      for (int i = 0; i < cnt; ++i)
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	if (sids[i] == sid)
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	  return i;
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      return -1;
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    }
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  int next_non_well_known_sid (int idx)
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    {
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      while (++idx < cnt)
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	if (!sids[idx].is_well_known_sid ())
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	  return idx;
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      return -1;
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    }
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  BOOL contains (const PSID sid) const { return position (sid) >= 0; }
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  cygsid *alloc_sids (int n);
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  void free_sids ();
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  void debug_print (const char *prefix = NULL) const
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    {
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      debug_printf ("-- begin sidlist ---");
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      if (!cnt)
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	debug_printf ("No elements");
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      for (int i = 0; i < cnt; ++i)
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	sids[i].debug_print (prefix);
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      debug_printf ("-- ende sidlist ---");
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    }
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};
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/* Wrapper class to allow simple deleting of buffer space allocated
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   by read_sd() */
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class security_descriptor {
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protected:
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  PSECURITY_DESCRIPTOR psd;
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  DWORD sd_size;
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public:
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  security_descriptor () : psd (NULL), sd_size (0) {}
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  ~security_descriptor () { free (); }
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  PSECURITY_DESCRIPTOR malloc (size_t nsize);
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  PSECURITY_DESCRIPTOR realloc (size_t nsize);
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  void free ();
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  inline DWORD size () const { return sd_size; }
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  inline DWORD copy (void *buf, DWORD buf_size) const {
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    if (buf_size < size ())
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      return sd_size;
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    memcpy (buf, psd, sd_size);
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    return 0;
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  }
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  inline operator const PSECURITY_DESCRIPTOR () { return psd; }
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  inline operator PSECURITY_DESCRIPTOR *() { return &psd; }
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  inline void operator =(PSECURITY_DESCRIPTOR nsd) { psd = nsd; }
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};
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class user_groups {
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public:
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  cygsid pgsid;
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  cygsidlist sgsids;
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  BOOL ischanged;
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  BOOL issetgroups () const { return (sgsids.type == cygsidlist_alloc); }
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  void update_supp (const cygsidlist &newsids)
 | 
						|
    {
 | 
						|
      sgsids.free_sids ();
 | 
						|
      sgsids = newsids;
 | 
						|
      ischanged = TRUE;
 | 
						|
    }
 | 
						|
  void clear_supp ()
 | 
						|
    {
 | 
						|
      if (issetgroups ())
 | 
						|
	{
 | 
						|
	  sgsids.free_sids ();
 | 
						|
	  ischanged = TRUE;
 | 
						|
	}
 | 
						|
    }
 | 
						|
  void update_pgrp (const PSID sid)
 | 
						|
    {
 | 
						|
      pgsid = sid;
 | 
						|
      ischanged = TRUE;
 | 
						|
    }
 | 
						|
};
 | 
						|
 | 
						|
extern cygpsid well_known_null_sid;
 | 
						|
extern cygpsid well_known_world_sid;
 | 
						|
extern cygpsid well_known_local_sid;
 | 
						|
extern cygpsid well_known_console_logon_sid;
 | 
						|
extern cygpsid well_known_creator_owner_sid;
 | 
						|
extern cygpsid well_known_creator_group_sid;
 | 
						|
extern cygpsid well_known_dialup_sid;
 | 
						|
extern cygpsid well_known_network_sid;
 | 
						|
extern cygpsid well_known_batch_sid;
 | 
						|
extern cygpsid well_known_interactive_sid;
 | 
						|
extern cygpsid well_known_service_sid;
 | 
						|
extern cygpsid well_known_authenticated_users_sid;
 | 
						|
extern cygpsid well_known_this_org_sid;
 | 
						|
extern cygpsid well_known_system_sid;
 | 
						|
extern cygpsid well_known_local_service_sid;
 | 
						|
extern cygpsid well_known_network_service_sid;
 | 
						|
extern cygpsid well_known_builtin_sid;
 | 
						|
extern cygpsid well_known_admins_sid;
 | 
						|
extern cygpsid well_known_users_sid;
 | 
						|
extern cygpsid trusted_installer_sid;
 | 
						|
extern cygpsid mandatory_medium_integrity_sid;
 | 
						|
extern cygpsid mandatory_high_integrity_sid;
 | 
						|
extern cygpsid mandatory_system_integrity_sid;
 | 
						|
extern cygpsid well_known_samba_unix_user_fake_sid;
 | 
						|
 | 
						|
bool privilege_luid (const PWCHAR pname, LUID &luid, bool &high_integrity);
 | 
						|
 | 
						|
extern inline BOOL
 | 
						|
well_known_sid_type (SID_NAME_USE type)
 | 
						|
{
 | 
						|
  return type == SidTypeAlias || type == SidTypeWellKnownGroup;
 | 
						|
}
 | 
						|
 | 
						|
extern inline BOOL
 | 
						|
legal_sid_type (SID_NAME_USE type)
 | 
						|
{
 | 
						|
  return type == SidTypeUser  || type == SidTypeGroup
 | 
						|
      || type == SidTypeAlias || type == SidTypeWellKnownGroup;
 | 
						|
}
 | 
						|
 | 
						|
class path_conv;
 | 
						|
/* File manipulation */
 | 
						|
int __reg3 get_file_attribute (HANDLE, path_conv &, mode_t *,
 | 
						|
				  uid_t *, gid_t *);
 | 
						|
int __reg3 set_file_attribute (HANDLE, path_conv &,
 | 
						|
				  uid_t, gid_t, mode_t);
 | 
						|
int __reg2 get_object_sd (HANDLE, security_descriptor &);
 | 
						|
int __reg3 get_object_attribute (HANDLE, uid_t *, gid_t *, mode_t *);
 | 
						|
int __reg3 set_object_attribute (HANDLE, uid_t, gid_t, mode_t);
 | 
						|
int __reg3 create_object_sd_from_attribute (HANDLE, uid_t, gid_t,
 | 
						|
					       mode_t, security_descriptor &);
 | 
						|
int __reg3 set_object_sd (HANDLE, security_descriptor &, bool);
 | 
						|
 | 
						|
int __reg3 get_reg_attribute (HKEY hkey, mode_t *, uid_t *, gid_t *);
 | 
						|
LONG __reg3 get_file_sd (HANDLE fh, path_conv &, security_descriptor &, bool);
 | 
						|
LONG __reg3 set_file_sd (HANDLE fh, path_conv &, security_descriptor &, bool);
 | 
						|
bool __reg3 add_access_allowed_ace (PACL, int, DWORD, PSID, size_t &, DWORD);
 | 
						|
bool __reg3 add_access_denied_ace (PACL, int, DWORD, PSID, size_t &, DWORD);
 | 
						|
int __reg3 check_file_access (path_conv &, int, bool);
 | 
						|
int __reg3 check_registry_access (HANDLE, int, bool);
 | 
						|
 | 
						|
void set_security_attribute (path_conv &pc, int attribute,
 | 
						|
			     PSECURITY_ATTRIBUTES psa,
 | 
						|
			     security_descriptor &sd_buf);
 | 
						|
 | 
						|
bool get_sids_info (cygpsid, cygpsid, uid_t * , gid_t *);
 | 
						|
 | 
						|
/* sec_acl.cc */
 | 
						|
struct acl;
 | 
						|
extern "C" int aclsort32 (int, int, struct acl *);
 | 
						|
extern "C" int acl32 (const char *, int, int, struct acl *);
 | 
						|
int getacl (HANDLE, path_conv &, int, struct acl *);
 | 
						|
int setacl (HANDLE, path_conv &, int, struct acl *, bool &);
 | 
						|
 | 
						|
/* Set impersonation or restricted token.  */
 | 
						|
void set_imp_token (HANDLE token, int type);
 | 
						|
/* Function creating a token by calling NtCreateToken. */
 | 
						|
HANDLE create_token (cygsid &usersid, user_groups &groups);
 | 
						|
/* LSA authentication function. */
 | 
						|
HANDLE lsaauth (cygsid &, user_groups &);
 | 
						|
/* LSA private key storage authentication, same as when using service logons. */
 | 
						|
HANDLE lsaprivkeyauth (struct passwd *pw);
 | 
						|
/* Verify an existing token */
 | 
						|
bool verify_token (HANDLE token, cygsid &usersid, user_groups &groups, bool *pintern = NULL);
 | 
						|
/* Get groups of a user */
 | 
						|
bool get_server_groups (cygsidlist &grp_list, PSID usersid);
 | 
						|
 | 
						|
/* Extract U-domain\user field from passwd entry. */
 | 
						|
void extract_nt_dom_user (const struct passwd *pw, PWCHAR domain, PWCHAR user);
 | 
						|
/* Get default logonserver for a domain. */
 | 
						|
bool get_logon_server (PCWSTR domain, PWCHAR wserver, ULONG flags);
 | 
						|
 | 
						|
/* Fetch user profile path from registry, if it already exists. */
 | 
						|
PWCHAR get_user_profile_directory (PCWSTR sidstr, PWCHAR path, SIZE_T path_len);
 | 
						|
 | 
						|
/* Load user profile if it's not already loaded. */
 | 
						|
HANDLE load_user_profile (HANDLE token, struct passwd *pw, cygpsid &sid);
 | 
						|
 | 
						|
HANDLE lsa_open_policy (PWCHAR server, ACCESS_MASK access);
 | 
						|
void lsa_close_policy (HANDLE lsa);
 | 
						|
 | 
						|
/* sec_helper.cc: Security helper functions. */
 | 
						|
int set_privilege (HANDLE token, DWORD privilege, bool enable);
 | 
						|
void set_cygwin_privileges (HANDLE token);
 | 
						|
 | 
						|
#define _push_thread_privilege(_priv, _val, _check) { \
 | 
						|
    HANDLE _dup_token = NULL; \
 | 
						|
    HANDLE _token = (cygheap->user.issetuid () && (_check)) \
 | 
						|
		    ? cygheap->user.primary_token () : hProcToken; \
 | 
						|
    if (!DuplicateTokenEx (_token, MAXIMUM_ALLOWED, NULL, \
 | 
						|
			   SecurityImpersonation, TokenImpersonation, \
 | 
						|
			   &_dup_token)) \
 | 
						|
      debug_printf ("DuplicateTokenEx: %E"); \
 | 
						|
    else if (!ImpersonateLoggedOnUser (_dup_token)) \
 | 
						|
      debug_printf ("ImpersonateLoggedOnUser: %E"); \
 | 
						|
    else \
 | 
						|
      set_privilege (_dup_token, (_priv), (_val));
 | 
						|
 | 
						|
#define push_thread_privilege(_priv, _val) _push_thread_privilege(_priv,_val,1)
 | 
						|
#define push_self_privilege(_priv, _val)   _push_thread_privilege(_priv,_val,0)
 | 
						|
 | 
						|
#define pop_thread_privilege() \
 | 
						|
    if (_dup_token) \
 | 
						|
      { \
 | 
						|
	if (!cygheap->user.issetuid ()) \
 | 
						|
	  RevertToSelf (); \
 | 
						|
	else \
 | 
						|
	  cygheap->user.reimpersonate (); \
 | 
						|
	CloseHandle (_dup_token); \
 | 
						|
      } \
 | 
						|
  }
 | 
						|
 | 
						|
#define pop_self_privilege()		   pop_thread_privilege()
 | 
						|
 | 
						|
/* shared.cc: */
 | 
						|
 | 
						|
/* Various types of security attributes for use in Create* functions. */
 | 
						|
extern SECURITY_ATTRIBUTES sec_none, sec_none_nih, sec_all, sec_all_nih;
 | 
						|
extern SECURITY_ATTRIBUTES *__reg3 __sec_user (PVOID, PSID, PSID,
 | 
						|
						  DWORD, BOOL);
 | 
						|
 | 
						|
extern PSECURITY_DESCRIPTOR _recycler_sd (void *buf, bool users, bool dir);
 | 
						|
#define recycler_sd(users,dir) \
 | 
						|
  (_recycler_sd (alloca (sizeof (SECURITY_DESCRIPTOR) + MAX_DACL_LEN (3)), \
 | 
						|
		 (users), \
 | 
						|
		 (dir)))
 | 
						|
 | 
						|
extern PSECURITY_DESCRIPTOR _everyone_sd (void *buf, ACCESS_MASK access);
 | 
						|
#define everyone_sd(access)	(_everyone_sd (alloca (SD_MIN_SIZE), (access)))
 | 
						|
 | 
						|
#define sec_none_cloexec(f) (((f) & O_CLOEXEC ? &sec_none_nih : &sec_none))
 | 
						|
 | 
						|
extern bool sec_acl (PACL acl, bool original, bool admins, PSID sid1 = NO_SID,
 | 
						|
		     PSID sid2 = NO_SID, DWORD access2 = 0);
 | 
						|
 | 
						|
ssize_t __reg3 read_ea (HANDLE, path_conv &, const char *,
 | 
						|
			   char *, size_t);
 | 
						|
int __reg3 write_ea (HANDLE, path_conv &, const char *, const char *,
 | 
						|
			size_t, int);
 | 
						|
 | 
						|
/* Note: sid1 is usually (read: currently always) the current user's
 | 
						|
   effective sid (cygheap->user.sid ()). */
 | 
						|
extern inline SECURITY_ATTRIBUTES *
 | 
						|
sec_user_nih (SECURITY_ATTRIBUTES *sa_buf, PSID sid1, PSID sid2 = NULL,
 | 
						|
	      DWORD access2 = 0)
 | 
						|
{
 | 
						|
  return __sec_user (sa_buf, sid1, sid2, access2, FALSE);
 | 
						|
}
 | 
						|
 | 
						|
extern inline SECURITY_ATTRIBUTES *
 | 
						|
sec_user (SECURITY_ATTRIBUTES *sa_buf, PSID sid1, PSID sid2 = NULL,
 | 
						|
	  DWORD access2 = 0)
 | 
						|
{
 | 
						|
  return __sec_user (sa_buf, sid1, sid2, access2, TRUE);
 | 
						|
}
 |