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Diffstat (limited to 'winsup/cygwin/security.h')
-rw-r--r-- | winsup/cygwin/security.h | 455 |
1 files changed, 0 insertions, 455 deletions
diff --git a/winsup/cygwin/security.h b/winsup/cygwin/security.h deleted file mode 100644 index 7b09bc0ad..000000000 --- a/winsup/cygwin/security.h +++ /dev/null @@ -1,455 +0,0 @@ -/* security.h: security declarations - - Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 - 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. */ - -#ifndef _SECURITY_H -#define _SECURITY_H - -#include <accctrl.h> - -#define DEFAULT_UID DOMAIN_USER_RID_ADMIN -#define UNKNOWN_UID 400 /* Non conflicting number */ -#define UNKNOWN_GID 401 - -#define MAX_SID_LEN 40 -#define MAX_DACL_LEN(n) (sizeof (ACL) \ - + (n) * (sizeof (ACCESS_ALLOWED_ACE) - sizeof (DWORD) + MAX_SID_LEN)) -#define SD_MIN_SIZE (sizeof (SECURITY_DESCRIPTOR) + MAX_DACL_LEN (1)) -#define ACL_DEFAULT_SIZE 3072 -#define NO_SID ((PSID)NULL) - -#ifndef SE_CREATE_TOKEN_PRIVILEGE -#define SE_CREATE_TOKEN_PRIVILEGE 2UL -#define SE_ASSIGNPRIMARYTOKEN_PRIVILEGE 3UL -#define SE_LOCK_MEMORY_PRIVILEGE 4UL -#define SE_INCREASE_QUOTA_PRIVILEGE 5UL -#define SE_MACHINE_ACCOUNT_PRIVILEGE 6UL -#define SE_TCB_PRIVILEGE 7UL -#define SE_SECURITY_PRIVILEGE 8UL -#define SE_TAKE_OWNERSHIP_PRIVILEGE 9UL -#define SE_LOAD_DRIVER_PRIVILEGE 10UL -#define SE_SYSTEM_PROFILE_PRIVILEGE 11UL -#define SE_SYSTEMTIME_PRIVILEGE 12UL -#define SE_PROF_SINGLE_PROCESS_PRIVILEGE 13UL -#define SE_INC_BASE_PRIORITY_PRIVILEGE 14UL -#define SE_CREATE_PAGEFILE_PRIVILEGE 15UL -#define SE_CREATE_PERMANENT_PRIVILEGE 16UL -#define SE_BACKUP_PRIVILEGE 17UL -#define SE_RESTORE_PRIVILEGE 18UL -#define SE_SHUTDOWN_PRIVILEGE 19UL -#define SE_DEBUG_PRIVILEGE 20UL -#define SE_AUDIT_PRIVILEGE 21UL -#define SE_SYSTEM_ENVIRONMENT_PRIVILEGE 22UL -#define SE_CHANGE_NOTIFY_PRIVILEGE 23UL -#define SE_REMOTE_SHUTDOWN_PRIVILEGE 24UL -/* Starting with Windows 2000 */ -#define SE_UNDOCK_PRIVILEGE 25UL -#define SE_SYNC_AGENT_PRIVILEGE 26UL -#define SE_ENABLE_DELEGATION_PRIVILEGE 27UL -#define SE_MANAGE_VOLUME_PRIVILEGE 28UL -/* Starting with Windows 2000 SP4, XP SP2, 2003 Server */ -#define SE_IMPERSONATE_PRIVILEGE 29UL -#define SE_CREATE_GLOBAL_PRIVILEGE 30UL -/* Starting with Vista */ -#define SE_TRUSTED_CREDMAN_ACCESS_PRIVILEGE 31UL -#define SE_RELABEL_PRIVILEGE 32UL -#define SE_INCREASE_WORKING_SET_PRIVILEGE 33UL -#define SE_TIME_ZONE_PRIVILEGE 34UL -#define SE_CREATE_SYMBOLIC_LINK_PRIVILEGE 35UL - -#define SE_MAX_WELL_KNOWN_PRIVILEGE SE_CREATE_SYMBOLIC_LINK_PRIVILEGE - -#endif /* ! SE_CREATE_TOKEN_PRIVILEGE */ - -/* Added for debugging purposes. */ -typedef struct { - BYTE Revision; - BYTE SubAuthorityCount; - SID_IDENTIFIER_AUTHORITY IdentifierAuthority; - DWORD SubAuthority[8]; -} DBGSID, *PDBGSID; - -/* Macro to define variable length SID structures */ -#define MKSID(name, comment, authority, count, rid...) \ -static NO_COPY struct { \ - BYTE Revision; \ - BYTE SubAuthorityCount; \ - SID_IDENTIFIER_AUTHORITY IdentifierAuthority; \ - DWORD SubAuthority[count]; \ -} name##_struct = { SID_REVISION, count, {authority}, {rid}}; \ -cygpsid NO_COPY name = (PSID) &name##_struct; - -#define FILE_READ_BITS (FILE_READ_DATA | GENERIC_READ | GENERIC_ALL) -#define FILE_WRITE_BITS (FILE_WRITE_DATA | GENERIC_WRITE | GENERIC_ALL) -#define FILE_EXEC_BITS (FILE_EXECUTE | GENERIC_EXECUTE | GENERIC_ALL) - -class cygpsid { -protected: - PSID psid; -public: - cygpsid () {} - cygpsid (PSID nsid) { psid = nsid; } - operator PSID () const { return psid; } - const PSID operator= (PSID nsid) { return psid = nsid;} - __uid32_t get_id (BOOL search_grp, int *type = NULL); - int get_uid () { return get_id (FALSE); } - int get_gid () { return get_id (TRUE); } - - PWCHAR string (PWCHAR nsidstr) const; - char *string (char *nsidstr) const; - - bool operator== (const PSID nsid) const - { - if (!psid || !nsid) - return nsid == psid; - return EqualSid (psid, nsid); - } - bool operator!= (const PSID nsid) const - { return !(*this == nsid); } - bool operator== (const char *nsidstr) const; - bool operator!= (const char *nsidstr) const - { return !(*this == nsidstr); } - - void debug_print (const char *prefix = NULL) const - { - char buf[256] __attribute__ ((unused)); - debug_printf ("%s %s", prefix ?: "", string (buf) ?: "NULL"); - } -}; - -class cygsid : public cygpsid { - char sbuf[MAX_SID_LEN]; - bool well_known_sid; - - const PSID getfromstr (const char *nsidstr, bool well_known); - PSID get_sid (DWORD s, DWORD cnt, DWORD *r, bool well_known); - - inline const PSID assign (const PSID nsid, bool well_known) - { - if (!nsid) - psid = NO_SID; - else - { - psid = (PSID) sbuf; - CopySid (MAX_SID_LEN, psid, nsid); - well_known_sid = well_known; - } - return psid; - } - -public: - inline operator const PSID () { return psid; } - inline bool is_well_known_sid () { return well_known_sid; } - - /* Both, = and *= are assignment operators. = creates a "normal" SID, - *= marks the SID as being a well-known SID. This difference is - important when creating a SID list for LSA authentication. */ - inline const PSID operator= (cygsid &nsid) - { return assign (nsid, nsid.well_known_sid); } - inline const PSID operator= (const PSID nsid) - { return assign (nsid, false); } - inline const PSID operator= (const char *nsidstr) - { return getfromstr (nsidstr, false); } - inline const PSID operator*= (cygsid &nsid) - { return assign (nsid, true); } - inline const PSID operator*= (const PSID nsid) - { return assign (nsid, true); } - inline const PSID operator*= (const char *nsidstr) - { return getfromstr (nsidstr, true); } - - inline cygsid () : cygpsid ((PSID) sbuf), well_known_sid (false) {} - inline cygsid (const PSID nsid) { *this = nsid; } - inline cygsid (const char *nstrsid) { *this = nstrsid; } - - inline PSID set () { return psid = (PSID) sbuf; } - - BOOL getfrompw (const struct passwd *pw); - BOOL getfromgr (const struct __group32 *gr); - - void debug_print (const char *prefix = NULL) const - { - char buf[256] __attribute__ ((unused)); - debug_printf ("%s %s%s", prefix ?: "", string (buf) ?: "NULL", well_known_sid ? " (*)" : " (+)"); - } -}; - -typedef enum { cygsidlist_empty, cygsidlist_alloc, cygsidlist_auto } cygsidlist_type; -class cygsidlist { - int maxcnt; - int cnt; - - BOOL add (const PSID nsi, bool well_known); /* Only with auto for now */ - -public: - cygsid *sids; - cygsidlist_type type; - - cygsidlist (cygsidlist_type t, int m) - : maxcnt (m), cnt (0), type (t) - { - if (t == cygsidlist_alloc) - sids = alloc_sids (m); - else - sids = new cygsid [m]; - } - ~cygsidlist () { if (type == cygsidlist_auto) delete [] sids; } - - BOOL addfromgr (struct __group32 *gr) /* Only with alloc */ - { return sids[cnt].getfromgr (gr) && ++cnt; } - - /* += adds a "normal" SID, *= adds a well-known SID. See comment in class - cygsid above. */ - BOOL operator+= (cygsid &si) { return add ((PSID) si, false); } - BOOL operator+= (const char *sidstr) { cygsid nsi (sidstr); - return add ((PSID) nsi, false); } - BOOL operator+= (const PSID psid) { return add (psid, false); } - BOOL operator*= (cygsid &si) { return add ((PSID) si, true); } - BOOL operator*= (const char *sidstr) { cygsid nsi (sidstr); - return add ((PSID) nsi, true); } - BOOL operator*= (const PSID psid) { return add (psid, true); } - - void count (int ncnt) - { cnt = ncnt; } - int count () const { return cnt; } - int non_well_known_count () const - { - int wcnt = 0; - for (int i = 0; i < cnt; ++i) - if (!sids[i].is_well_known_sid ()) - ++wcnt; - return wcnt; - } - - int position (const PSID sid) const - { - for (int i = 0; i < cnt; ++i) - if (sids[i] == sid) - return i; - return -1; - } - - int next_non_well_known_sid (int idx) - { - while (++idx < cnt) - if (!sids[idx].is_well_known_sid ()) - return idx; - return -1; - } - BOOL contains (const PSID sid) const { return position (sid) >= 0; } - cygsid *alloc_sids (int n); - void free_sids (); - void debug_print (const char *prefix = NULL) const - { - debug_printf ("-- begin sidlist ---"); - if (!cnt) - debug_printf ("No elements"); - for (int i = 0; i < cnt; ++i) - sids[i].debug_print (prefix); - debug_printf ("-- ende sidlist ---"); - } -}; - -/* Wrapper class to allow simple deleting of buffer space allocated - by read_sd() */ -class security_descriptor { -protected: - PSECURITY_DESCRIPTOR psd; - DWORD sd_size; -public: - security_descriptor () : psd (NULL), sd_size (0) {} - ~security_descriptor () { free (); } - - PSECURITY_DESCRIPTOR malloc (size_t nsize); - PSECURITY_DESCRIPTOR realloc (size_t nsize); - void free (); - - inline DWORD size () const { return sd_size; } - inline DWORD copy (void *buf, DWORD buf_size) const { - if (buf_size < size ()) - return sd_size; - memcpy (buf, psd, sd_size); - return 0; - } - inline operator const PSECURITY_DESCRIPTOR () { return psd; } - inline operator PSECURITY_DESCRIPTOR *() { return &psd; } -}; - -class user_groups { -public: - cygsid pgsid; - cygsidlist sgsids; - BOOL ischanged; - - BOOL issetgroups () const { return (sgsids.type == cygsidlist_alloc); } - 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_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_admins_sid; -extern cygpsid fake_logon_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); - -inline BOOL -legal_sid_type (SID_NAME_USE type) -{ - return type == SidTypeUser || type == SidTypeGroup - || type == SidTypeAlias || type == SidTypeWellKnownGroup; -} - -class path_conv; -/* File manipulation */ -int __stdcall get_file_attribute (HANDLE, path_conv &, mode_t *, - __uid32_t *, __gid32_t *); -int __stdcall set_file_attribute (HANDLE, path_conv &, - __uid32_t, __gid32_t, int); -int __stdcall get_reg_attribute (HKEY hkey, mode_t *, __uid32_t *, __gid32_t *); -LONG __stdcall get_file_sd (HANDLE fh, path_conv &, security_descriptor &sd); -LONG __stdcall set_file_sd (HANDLE fh, path_conv &, security_descriptor &sd, - bool is_chown); -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); -int __stdcall check_file_access (path_conv &, int); -int __stdcall check_registry_access (HANDLE, int); - -void set_security_attribute (path_conv &pc, int attribute, - PSECURITY_ATTRIBUTES psa, - security_descriptor &sd_buf); - -bool get_sids_info (cygpsid, cygpsid, __uid32_t * , __gid32_t *); - -/* sec_acl.cc */ -struct __acl32; -extern "C" int aclsort32 (int, int, __acl32 *); -extern "C" int acl32 (const char *, int, int, __acl32 *); -int getacl (HANDLE, path_conv &, int, __acl32 *); -int setacl (HANDLE, path_conv &, int, __acl32 *, bool &); - -/* Function creating a token by calling NtCreateToken. */ -HANDLE create_token (cygsid &usersid, user_groups &groups, struct passwd * pw); -/* LSA authentication function. */ -HANDLE lsaauth (cygsid &, user_groups &, struct passwd *); -/* 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, struct passwd *pw); - -/* 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 (PWCHAR domain, PWCHAR wserver, bool rediscovery); - -HANDLE open_local_policy (ACCESS_MASK access); - -/* 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: */ -/* Retrieve a security descriptor that allows all access */ -SECURITY_DESCRIPTOR *__stdcall get_null_sd (); - -/* 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 sid1, PSID sid2, - DWORD access2, BOOL inherit) - __attribute__ ((regparm (3))); -extern PSECURITY_DESCRIPTOR _everyone_sd (void *buf, ACCESS_MASK access); -#define everyone_sd(access) (_everyone_sd (alloca (SD_MIN_SIZE), (access))) - -extern bool sec_acl (PACL acl, bool original, bool admins, PSID sid1 = NO_SID, - PSID sid2 = NO_SID, DWORD access2 = 0); - -ssize_t __stdcall read_ea (HANDLE hdl, path_conv &pc, const char *name, - char *value, size_t size); -int __stdcall write_ea (HANDLE hdl, path_conv &pc, const char *name, - const char *value, size_t size, int flags); - -/* 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); -} -#endif /*_SECURITY_H*/ |