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/* security.h: security declarations
Copyright 2000, 2001 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#define DONT_INHERIT (0)
#define INHERIT_ALL (CONTAINER_INHERIT_ACE|OBJECT_INHERIT_ACE)
#define INHERIT_ONLY (INHERIT_ONLY_ACE|CONTAINER_INHERIT_ACE|OBJECT_INHERIT_ACE)
#define DEFAULT_UID DOMAIN_USER_RID_ADMIN
#define DEFAULT_GID DOMAIN_ALIAS_RID_ADMINS
#define MAX_SID_LEN 40
#define NO_SID ((PSID)NULL)
class cygsid {
PSID psid;
char sbuf[MAX_SID_LEN];
const PSID getfromstr (const char *nsidstr);
PSID get_sid (DWORD s, DWORD cnt, DWORD *r);
public:
inline cygsid () : psid ((PSID) sbuf) {}
inline cygsid (const PSID nsid) { *this = nsid; }
inline cygsid (const char *nstrsid) { *this = nstrsid; }
inline PSID set () { return psid = (PSID) sbuf; }
BOOL getfrompw (struct passwd *pw);
BOOL getfromgr (struct group *gr);
int get_id (BOOL search_grp, int *type = NULL);
inline int get_uid () { return get_id (FALSE); }
inline int get_gid () { return get_id (TRUE); }
char *string (char *nsidstr);
inline const PSID operator= (const PSID nsid)
{
if (!nsid)
psid = NULL;
else
{
psid = (PSID) sbuf;
CopySid (MAX_SID_LEN, psid, nsid);
}
return psid;
}
inline const PSID operator= (const char *nsidstr)
{ return getfromstr (nsidstr); }
inline BOOL operator== (const PSID nsid) const
{
if (!psid || !nsid)
return nsid == psid;
return EqualSid (psid, nsid);
}
inline BOOL operator== (const char *nsidstr) const
{
cygsid nsid (nsidstr);
return *this == nsid;
}
inline BOOL operator!= (const PSID nsid) const
{ return !(*this == nsid); }
inline BOOL operator!= (const char *nsidstr) const
{ return !(*this == nsidstr); }
inline operator const PSID () { return psid; }
};
extern cygsid well_known_admin_sid;
extern cygsid well_known_system_sid;
extern cygsid well_known_creator_owner_sid;
extern cygsid well_known_world_sid;
extern BOOL allow_ntsec;
extern BOOL allow_smbntsec;
/* These both functions are needed to allow walking through the passwd
and group lists so they are somehow security related. Besides that
I didn't find a better place to declare them. */
extern struct passwd *internal_getpwent (int);
extern struct group *internal_getgrent (int);
/* File manipulation */
int __stdcall set_process_privileges ();
int __stdcall get_file_attribute (int, const char *, int *,
uid_t * = NULL, gid_t * = NULL);
int __stdcall set_file_attribute (int, const char *, int);
int __stdcall set_file_attribute (int, const char *, uid_t, gid_t, int, const char *);
LONG __stdcall read_sd(const char *file, PSECURITY_DESCRIPTOR sd_buf, LPDWORD sd_size);
LONG __stdcall write_sd(const char *file, PSECURITY_DESCRIPTOR sd_buf, DWORD sd_size);
BOOL __stdcall add_access_allowed_ace (PACL acl, int offset, DWORD attributes, PSID sid, size_t &len_add, DWORD inherit);
BOOL __stdcall add_access_denied_ace (PACL acl, int offset, DWORD attributes, PSID sid, size_t &len_add, DWORD inherit);
/* Try a subauthentication. */
HANDLE subauth (struct passwd *pw);
/* sec_helper.cc: Security helper functions. */
BOOL __stdcall is_grp_member (uid_t uid, gid_t gid);
/* `lookup_name' should be called instead of LookupAccountName.
* logsrv may be NULL, in this case only the local system is used for lookup.
* The buffer for ret_sid (40 Bytes) has to be allocated by the caller! */
BOOL __stdcall lookup_name (const char *, const char *, PSID);
int set_process_privilege (const char *privilege, BOOL enable = TRUE);
/* shared.cc: */
/* Retrieve a security descriptor that allows all access */
SECURITY_DESCRIPTOR *__stdcall get_null_sd (void);
/* 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 *__stdcall sec_user (PVOID sa_buf, PSID sid2 = NULL, BOOL inherit = TRUE);
extern SECURITY_ATTRIBUTES *__stdcall sec_user_nih (PVOID sa_buf, PSID sid2 = NULL);
int __stdcall NTReadEA (const char *file, const char *attrname, char *buf, int len);
BOOL __stdcall NTWriteEA (const char *file, const char *attrname, char *buf, int len);
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