219 lines
6.8 KiB
C++
219 lines
6.8 KiB
C++
/* security.h: security declarations
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Copyright 2000, 2001, 2002 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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#define DONT_INHERIT (0)
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#define INHERIT_ALL (CONTAINER_INHERIT_ACE|OBJECT_INHERIT_ACE)
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#define INHERIT_ONLY (INHERIT_ONLY_ACE|CONTAINER_INHERIT_ACE|OBJECT_INHERIT_ACE)
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#define DEFAULT_UID DOMAIN_USER_RID_ADMIN
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#define DEFAULT_GID DOMAIN_ALIAS_RID_ADMINS
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#define MAX_SID_LEN 40
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#define NO_SID ((PSID)NULL)
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class cygsid {
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PSID psid;
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char sbuf[MAX_SID_LEN];
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const PSID getfromstr (const char *nsidstr);
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PSID get_sid (DWORD s, DWORD cnt, DWORD *r);
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inline const PSID assign (const PSID nsid)
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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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CopySid (MAX_SID_LEN, psid, nsid);
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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 const PSID operator= (cygsid &nsid)
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{ return assign (nsid); }
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inline const PSID operator= (const PSID nsid)
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{ return assign (nsid); }
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inline const PSID operator= (const char *nsidstr)
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{ return getfromstr (nsidstr); }
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inline cygsid () : psid ((PSID) sbuf) {}
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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 PSID set () { return psid = (PSID) sbuf; }
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BOOL getfrompw (const struct passwd *pw);
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BOOL getfromgr (const struct __group16 *gr);
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int get_id (BOOL search_grp, int *type = NULL);
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inline int get_uid () { return get_id (FALSE); }
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inline int get_gid () { return get_id (TRUE); }
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char *string (char *nsidstr) const;
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inline 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 EqualSid (psid, nsid);
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}
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inline BOOL operator== (const char *nsidstr) const
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{
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cygsid nsid (nsidstr);
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return *this == nsid;
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}
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inline BOOL operator!= (const PSID nsid) const
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{ return !(*this == nsid); }
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inline 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];
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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 cygsidlist {
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public:
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int count;
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cygsid *sids;
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cygsidlist () : count (0), sids (NULL) {}
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~cygsidlist () { delete [] sids; }
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BOOL add (cygsid &nsi)
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{
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cygsid *tmp = new cygsid [count + 1];
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if (!tmp)
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return FALSE;
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for (int i = 0; i < count; ++i)
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tmp[i] = sids[i];
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delete [] sids;
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sids = tmp;
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sids[count++] = nsi;
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return TRUE;
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}
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BOOL add (const PSID nsid) { return add (nsid); }
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BOOL add (const char *sidstr)
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{ cygsid nsi (sidstr); return add (nsi); }
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BOOL operator+= (cygsid &si) { return add (si); }
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BOOL operator+= (const char *sidstr) { return add (sidstr); }
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BOOL contains (cygsid &sid) const
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{
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for (int i = 0; i < count; ++i)
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if (sids[i] == sid)
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return TRUE;
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return FALSE;
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}
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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 (!count)
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debug_printf ("No elements");
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for (int i = 0; i < count; ++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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extern cygsid well_known_null_sid;
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extern cygsid well_known_world_sid;
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extern cygsid well_known_local_sid;
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extern cygsid well_known_creator_owner_sid;
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extern cygsid well_known_dialup_sid;
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extern cygsid well_known_network_sid;
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extern cygsid well_known_batch_sid;
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extern cygsid well_known_interactive_sid;
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extern cygsid well_known_service_sid;
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extern cygsid well_known_authenticated_users_sid;
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extern cygsid well_known_system_sid;
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extern cygsid well_known_admins_sid;
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inline BOOL
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legal_sid_type (SID_NAME_USE type)
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{
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return type == SidTypeUser || type == SidTypeGroup
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|| type == SidTypeAlias || type == SidTypeWellKnownGroup;
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}
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extern BOOL allow_ntea;
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extern BOOL allow_ntsec;
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extern BOOL allow_smbntsec;
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/* These both functions are needed to allow walking through the passwd
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and group lists so they are somehow security related. Besides that
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I didn't find a better place to declare them. */
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extern struct passwd *internal_getpwent (int);
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extern struct __group16 *internal_getgrent (int);
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/* File manipulation */
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int __stdcall set_process_privileges ();
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int __stdcall get_file_attribute (int, const char *, int *,
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__uid16_t * = NULL, __gid16_t * = NULL);
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int __stdcall set_file_attribute (int, const char *, int);
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int __stdcall set_file_attribute (int, const char *, __uid16_t, __gid16_t, int, const char *);
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LONG __stdcall read_sd(const char *file, PSECURITY_DESCRIPTOR sd_buf, LPDWORD sd_size);
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LONG __stdcall write_sd(const char *file, PSECURITY_DESCRIPTOR sd_buf, DWORD sd_size);
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BOOL __stdcall add_access_allowed_ace (PACL acl, int offset, DWORD attributes, PSID sid, size_t &len_add, DWORD inherit);
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BOOL __stdcall add_access_denied_ace (PACL acl, int offset, DWORD attributes, PSID sid, size_t &len_add, DWORD inherit);
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void set_security_attribute (int attribute, PSECURITY_ATTRIBUTES psa,
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void *sd_buf, DWORD sd_buf_size);
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/* Try a subauthentication. */
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HANDLE subauth (struct passwd *pw);
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/* Try creating a token directly. */
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HANDLE create_token (cygsid &usersid, cygsid &pgrpsid);
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/* Extract U-domain\user field from passwd entry. */
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void extract_nt_dom_user (const struct passwd *pw, char *domain, char *user);
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/* Get default logonserver and domain for this box. */
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BOOL get_logon_server_and_user_domain (char *logonserver, char *domain);
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/* sec_helper.cc: Security helper functions. */
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BOOL __stdcall is_grp_member (__uid16_t uid, __gid16_t gid);
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/* `lookup_name' should be called instead of LookupAccountName.
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* logsrv may be NULL, in this case only the local system is used for lookup.
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* The buffer for ret_sid (40 Bytes) has to be allocated by the caller! */
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BOOL __stdcall lookup_name (const char *, const char *, PSID);
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int set_process_privilege (const char *privilege, BOOL enable = TRUE);
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/* shared.cc: */
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/* Retrieve a security descriptor that allows all access */
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SECURITY_DESCRIPTOR *__stdcall get_null_sd (void);
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/* Various types of security attributes for use in Create* functions. */
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extern SECURITY_ATTRIBUTES sec_none, sec_none_nih, sec_all, sec_all_nih;
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extern SECURITY_ATTRIBUTES *__stdcall __sec_user (PVOID sa_buf, PSID sid2, BOOL inherit)
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__attribute__ ((regparm (3)));
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int __stdcall NTReadEA (const char *file, const char *attrname, char *buf, int len);
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BOOL __stdcall NTWriteEA (const char *file, const char *attrname, const char *buf, int len);
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extern inline SECURITY_ATTRIBUTES *
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sec_user_nih (char sa_buf[], PSID sid = NULL)
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{
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return allow_ntsec ? __sec_user (sa_buf, sid, FALSE) : &sec_none_nih;
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}
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extern inline SECURITY_ATTRIBUTES *
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sec_user (char sa_buf[], PSID sid = NULL)
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{
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return allow_ntsec ? __sec_user (sa_buf, sid, TRUE) : &sec_none_nih;
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}
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