97b09fe1c5
user information on NT4. * sec_helper.cc (security_descriptor::malloc): Drop LocalAlloc considerations. (security_descriptor::realloc): Ditto. (security_descriptor::free): Ditto. * security.cc (get_reg_security): Reinstantiate. (get_nt_object_security): Revert to using NtQuerySecurityObject. * security.h (class security_descriptor): Drop type member. Accommodate throughout. (security_descriptor::size): Constify. (security_descriptor::copy): Ditto.
605 lines
15 KiB
C++
605 lines
15 KiB
C++
/* sec_helper.cc: NT security helper functions
|
|
|
|
Copyright 2000, 2001, 2002, 2003, 2004, 2006 Red Hat, Inc.
|
|
|
|
Written by Corinna Vinschen <corinna@vinschen.de>
|
|
|
|
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. */
|
|
|
|
#include "winsup.h"
|
|
#include <grp.h>
|
|
#include <pwd.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <limits.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/acl.h>
|
|
#include <ctype.h>
|
|
#include <wingdi.h>
|
|
#include <winuser.h>
|
|
#include <wininet.h>
|
|
#include "cygerrno.h"
|
|
#include "security.h"
|
|
#include "path.h"
|
|
#include "fhandler.h"
|
|
#include "dtable.h"
|
|
#include "pinfo.h"
|
|
#include "cygheap.h"
|
|
#include "cygtls.h"
|
|
#include "pwdgrp.h"
|
|
|
|
/* General purpose security attribute objects for global use. */
|
|
SECURITY_ATTRIBUTES NO_COPY sec_none;
|
|
SECURITY_ATTRIBUTES NO_COPY sec_none_nih;
|
|
SECURITY_ATTRIBUTES NO_COPY sec_all;
|
|
SECURITY_ATTRIBUTES NO_COPY sec_all_nih;
|
|
|
|
MKSID (well_known_null_sid, "S-1-0-0",
|
|
SECURITY_NULL_SID_AUTHORITY, 1, SECURITY_NULL_RID);
|
|
MKSID (well_known_world_sid, "S-1-1-0",
|
|
SECURITY_WORLD_SID_AUTHORITY, 1, SECURITY_WORLD_RID);
|
|
MKSID (well_known_local_sid, "S-1-2-0",
|
|
SECURITY_LOCAL_SID_AUTHORITY, 1, SECURITY_LOCAL_RID);
|
|
MKSID (well_known_creator_owner_sid, "S-1-3-0",
|
|
SECURITY_CREATOR_SID_AUTHORITY, 1, SECURITY_CREATOR_OWNER_RID);
|
|
MKSID (well_known_creator_group_sid, "S-1-3-1",
|
|
SECURITY_CREATOR_SID_AUTHORITY, 1, SECURITY_CREATOR_GROUP_RID);
|
|
MKSID (well_known_dialup_sid, "S-1-5-1",
|
|
SECURITY_NT_AUTHORITY, 1, SECURITY_DIALUP_RID);
|
|
MKSID (well_known_network_sid, "S-1-5-2",
|
|
SECURITY_NT_AUTHORITY, 1, SECURITY_NETWORK_RID);
|
|
MKSID (well_known_batch_sid, "S-1-5-3",
|
|
SECURITY_NT_AUTHORITY, 1, SECURITY_BATCH_RID);
|
|
MKSID (well_known_interactive_sid, "S-1-5-4",
|
|
SECURITY_NT_AUTHORITY, 1, SECURITY_INTERACTIVE_RID);
|
|
MKSID (well_known_service_sid, "S-1-5-6",
|
|
SECURITY_NT_AUTHORITY, 1, SECURITY_SERVICE_RID);
|
|
MKSID (well_known_authenticated_users_sid, "S-1-5-11",
|
|
SECURITY_NT_AUTHORITY, 1, SECURITY_AUTHENTICATED_USER_RID);
|
|
MKSID (well_known_this_org_sid, "S-1-5-15",
|
|
SECURITY_NT_AUTHORITY, 1, 15);
|
|
MKSID (well_known_system_sid, "S-1-5-18",
|
|
SECURITY_NT_AUTHORITY, 1, SECURITY_LOCAL_SYSTEM_RID);
|
|
MKSID (well_known_admins_sid, "S-1-5-32-544",
|
|
SECURITY_NT_AUTHORITY, 2, SECURITY_BUILTIN_DOMAIN_RID,
|
|
DOMAIN_ALIAS_RID_ADMINS);
|
|
MKSID (fake_logon_sid, "S-1-5-5-0-0",
|
|
SECURITY_NT_AUTHORITY, 3, SECURITY_LOGON_IDS_RID, 0, 0);
|
|
|
|
bool
|
|
cygpsid::operator== (const char *nsidstr) const
|
|
{
|
|
cygsid nsid (nsidstr);
|
|
return psid == nsid;
|
|
}
|
|
|
|
__uid32_t
|
|
cygpsid::get_id (BOOL search_grp, int *type)
|
|
{
|
|
/* First try to get SID from group, then passwd */
|
|
__uid32_t id = ILLEGAL_UID;
|
|
|
|
if (search_grp)
|
|
{
|
|
struct __group32 *gr;
|
|
if (cygheap->user.groups.pgsid == psid)
|
|
id = myself->gid;
|
|
else if ((gr = internal_getgrsid (*this)))
|
|
id = gr->gr_gid;
|
|
if (id != ILLEGAL_UID)
|
|
{
|
|
if (type)
|
|
*type = GROUP;
|
|
return id;
|
|
}
|
|
}
|
|
if (!search_grp || type)
|
|
{
|
|
struct passwd *pw;
|
|
if (*this == cygheap->user.sid ())
|
|
id = myself->uid;
|
|
else if ((pw = internal_getpwsid (*this)))
|
|
id = pw->pw_uid;
|
|
if (id != ILLEGAL_UID && type)
|
|
*type = USER;
|
|
}
|
|
return id;
|
|
}
|
|
|
|
|
|
char *
|
|
cygpsid::string (char *nsidstr) const
|
|
{
|
|
char *t;
|
|
DWORD i;
|
|
|
|
if (!psid || !nsidstr)
|
|
return NULL;
|
|
strcpy (nsidstr, "S-1-");
|
|
t = nsidstr + sizeof ("S-1-") - 1;
|
|
t += __small_sprintf (t, "%u", GetSidIdentifierAuthority (psid)->Value[5]);
|
|
for (i = 0; i < *GetSidSubAuthorityCount (psid); ++i)
|
|
t += __small_sprintf (t, "-%lu", *GetSidSubAuthority (psid, i));
|
|
return nsidstr;
|
|
}
|
|
|
|
PSID
|
|
cygsid::get_sid (DWORD s, DWORD cnt, DWORD *r, bool well_known)
|
|
{
|
|
DWORD i;
|
|
SID_IDENTIFIER_AUTHORITY sid_auth = {0,0,0,0,0,0};
|
|
|
|
if (s > 255 || cnt < 1 || cnt > 8)
|
|
{
|
|
psid = NO_SID;
|
|
return NULL;
|
|
}
|
|
sid_auth.Value[5] = s;
|
|
set ();
|
|
InitializeSid (psid, &sid_auth, cnt);
|
|
for (i = 0; i < cnt; ++i)
|
|
memcpy ((char *) psid + 8 + sizeof (DWORD) * i, &r[i], sizeof (DWORD));
|
|
well_known_sid = well_known;
|
|
return psid;
|
|
}
|
|
|
|
const PSID
|
|
cygsid::getfromstr (const char *nsidstr, bool well_known)
|
|
{
|
|
char *lasts;
|
|
DWORD s, cnt = 0;
|
|
DWORD r[8];
|
|
|
|
if (nsidstr && !strncmp (nsidstr, "S-1-", 4))
|
|
{
|
|
s = strtoul (nsidstr + 4, &lasts, 10);
|
|
while (cnt < 8 && *lasts == '-')
|
|
r[cnt++] = strtoul (lasts + 1, &lasts, 10);
|
|
if (!*lasts)
|
|
return get_sid (s, cnt, r, well_known);
|
|
}
|
|
return psid = NO_SID;
|
|
}
|
|
|
|
BOOL
|
|
cygsid::getfrompw (const struct passwd *pw)
|
|
{
|
|
char *sp = (pw && pw->pw_gecos) ? strrchr (pw->pw_gecos, ',') : NULL;
|
|
return (*this = sp ? sp + 1 : sp) != NULL;
|
|
}
|
|
|
|
BOOL
|
|
cygsid::getfromgr (const struct __group32 *gr)
|
|
{
|
|
char *sp = (gr && gr->gr_passwd) ? gr->gr_passwd : NULL;
|
|
return (*this = sp) != NULL;
|
|
}
|
|
|
|
cygsid *
|
|
cygsidlist::alloc_sids (int n)
|
|
{
|
|
if (n > 0)
|
|
return (cygsid *) cmalloc (HEAP_STR, n * sizeof (cygsid));
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
cygsidlist::free_sids ()
|
|
{
|
|
if (sids)
|
|
cfree (sids);
|
|
sids = NULL;
|
|
cnt = maxcnt = 0;
|
|
type = cygsidlist_empty;
|
|
}
|
|
|
|
BOOL
|
|
cygsidlist::add (const PSID nsi, bool well_known)
|
|
{
|
|
if (contains (nsi))
|
|
return TRUE;
|
|
if (cnt >= maxcnt)
|
|
{
|
|
cygsid *tmp = new cygsid [2 * maxcnt];
|
|
if (!tmp)
|
|
return FALSE;
|
|
maxcnt *= 2;
|
|
for (int i = 0; i < cnt; ++i)
|
|
tmp[i] = sids[i];
|
|
delete [] sids;
|
|
sids = tmp;
|
|
}
|
|
if (well_known)
|
|
sids[cnt++] *= nsi;
|
|
else
|
|
sids[cnt++] = nsi;
|
|
return TRUE;
|
|
}
|
|
|
|
bool
|
|
get_sids_info (cygpsid owner_sid, cygpsid group_sid, __uid32_t * uidret, __gid32_t * gidret)
|
|
{
|
|
struct passwd *pw;
|
|
struct __group32 *gr = NULL;
|
|
bool ret = false;
|
|
|
|
owner_sid.debug_print ("get_sids_info: owner SID =");
|
|
group_sid.debug_print ("get_sids_info: group SID =");
|
|
|
|
if (group_sid == cygheap->user.groups.pgsid)
|
|
*gidret = myself->gid;
|
|
else if ((gr = internal_getgrsid (group_sid)))
|
|
*gidret = gr->gr_gid;
|
|
else
|
|
*gidret = ILLEGAL_GID;
|
|
|
|
if (owner_sid == cygheap->user.sid ())
|
|
{
|
|
*uidret = myself->uid;
|
|
if (*gidret == myself->gid)
|
|
ret = true;
|
|
else
|
|
ret = (internal_getgroups (0, NULL, &group_sid) > 0);
|
|
}
|
|
else if ((pw = internal_getpwsid (owner_sid)))
|
|
{
|
|
*uidret = pw->pw_uid;
|
|
if (gr || (*gidret != ILLEGAL_GID
|
|
&& (gr = internal_getgrgid (*gidret))))
|
|
for (int idx = 0; gr->gr_mem[idx]; ++idx)
|
|
if ((ret = strcasematch (pw->pw_name, gr->gr_mem[idx])))
|
|
break;
|
|
}
|
|
else
|
|
*uidret = ILLEGAL_UID;
|
|
|
|
return ret;
|
|
}
|
|
|
|
PSECURITY_DESCRIPTOR
|
|
security_descriptor::malloc (size_t nsize)
|
|
{
|
|
free ();
|
|
if ((psd = (PSECURITY_DESCRIPTOR) ::malloc (nsize)))
|
|
sd_size = nsize;
|
|
return psd;
|
|
}
|
|
|
|
PSECURITY_DESCRIPTOR
|
|
security_descriptor::realloc (size_t nsize)
|
|
{
|
|
PSECURITY_DESCRIPTOR tmp;
|
|
|
|
if (!(tmp = (PSECURITY_DESCRIPTOR) ::realloc (psd, nsize)))
|
|
return NULL;
|
|
sd_size = nsize;
|
|
return psd = tmp;
|
|
}
|
|
|
|
void
|
|
security_descriptor::free ()
|
|
{
|
|
if (psd)
|
|
::free (psd);
|
|
psd = NULL;
|
|
sd_size = 0;
|
|
}
|
|
|
|
#if 0 // unused
|
|
#define SIDLEN (sidlen = MAX_SID_LEN, &sidlen)
|
|
#define DOMLEN (domlen = INTERNET_MAX_HOST_NAME_LENGTH, &domlen)
|
|
|
|
BOOL
|
|
lookup_name (const char *name, const char *logsrv, PSID ret_sid)
|
|
{
|
|
cygsid sid;
|
|
DWORD sidlen;
|
|
char domuser[INTERNET_MAX_HOST_NAME_LENGTH + UNLEN + 2];
|
|
char dom[INTERNET_MAX_HOST_NAME_LENGTH + 1];
|
|
DWORD domlen;
|
|
SID_NAME_USE acc_type;
|
|
|
|
debug_printf ("name : %s", name ? name : "NULL");
|
|
|
|
if (!name)
|
|
return FALSE;
|
|
|
|
if (cygheap->user.domain ())
|
|
{
|
|
strcat (strcat (strcpy (domuser, cygheap->user.domain ()), "\\"), name);
|
|
if (LookupAccountName (NULL, domuser, sid, SIDLEN, dom, DOMLEN, &acc_type)
|
|
&& legal_sid_type (acc_type))
|
|
goto got_it;
|
|
if (logsrv && *logsrv
|
|
&& LookupAccountName (logsrv, domuser, sid, SIDLEN,
|
|
dom, DOMLEN, &acc_type)
|
|
&& legal_sid_type (acc_type))
|
|
goto got_it;
|
|
}
|
|
if (logsrv && *logsrv)
|
|
{
|
|
if (LookupAccountName (logsrv, name, sid, SIDLEN, dom, DOMLEN, &acc_type)
|
|
&& legal_sid_type (acc_type))
|
|
goto got_it;
|
|
if (acc_type == SidTypeDomain)
|
|
{
|
|
strcat (strcat (strcpy (domuser, dom), "\\"), name);
|
|
if (LookupAccountName (logsrv, domuser, sid, SIDLEN,
|
|
dom, DOMLEN, &acc_type))
|
|
goto got_it;
|
|
}
|
|
}
|
|
if (LookupAccountName (NULL, name, sid, SIDLEN, dom, DOMLEN, &acc_type)
|
|
&& legal_sid_type (acc_type))
|
|
goto got_it;
|
|
if (acc_type == SidTypeDomain)
|
|
{
|
|
strcat (strcat (strcpy (domuser, dom), "\\"), name);
|
|
if (LookupAccountName (NULL, domuser, sid, SIDLEN, dom, DOMLEN,&acc_type))
|
|
goto got_it;
|
|
}
|
|
debug_printf ("LookupAccountName (%s) %E", name);
|
|
__seterrno ();
|
|
return FALSE;
|
|
|
|
got_it:
|
|
debug_printf ("sid : [%d]", *GetSidSubAuthority ((PSID) sid,
|
|
*GetSidSubAuthorityCount ((PSID) sid) - 1));
|
|
|
|
if (ret_sid)
|
|
memcpy (ret_sid, sid, sidlen);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
#undef SIDLEN
|
|
#undef DOMLEN
|
|
#endif //unused
|
|
|
|
/* Order must be same as cygpriv_idx in security.h. */
|
|
static const char *cygpriv[] =
|
|
{
|
|
SE_CREATE_TOKEN_NAME,
|
|
SE_ASSIGNPRIMARYTOKEN_NAME,
|
|
SE_LOCK_MEMORY_NAME,
|
|
SE_INCREASE_QUOTA_NAME,
|
|
SE_UNSOLICITED_INPUT_NAME,
|
|
SE_MACHINE_ACCOUNT_NAME,
|
|
SE_TCB_NAME,
|
|
SE_SECURITY_NAME,
|
|
SE_TAKE_OWNERSHIP_NAME,
|
|
SE_LOAD_DRIVER_NAME,
|
|
SE_SYSTEM_PROFILE_NAME,
|
|
SE_SYSTEMTIME_NAME,
|
|
SE_PROF_SINGLE_PROCESS_NAME,
|
|
SE_INC_BASE_PRIORITY_NAME,
|
|
SE_CREATE_PAGEFILE_NAME,
|
|
SE_CREATE_PERMANENT_NAME,
|
|
SE_BACKUP_NAME,
|
|
SE_RESTORE_NAME,
|
|
SE_SHUTDOWN_NAME,
|
|
SE_DEBUG_NAME,
|
|
SE_AUDIT_NAME,
|
|
SE_SYSTEM_ENVIRONMENT_NAME,
|
|
SE_CHANGE_NOTIFY_NAME,
|
|
SE_REMOTE_SHUTDOWN_NAME,
|
|
SE_CREATE_GLOBAL_NAME,
|
|
SE_UNDOCK_NAME,
|
|
SE_MANAGE_VOLUME_NAME,
|
|
SE_IMPERSONATE_NAME,
|
|
SE_ENABLE_DELEGATION_NAME,
|
|
SE_SYNC_AGENT_NAME,
|
|
SE_RELABEL_NAME,
|
|
SE_INCREASE_WORKING_SET_NAME,
|
|
SE_TIME_ZONE_NAME,
|
|
SE_CREATE_SYMBOLIC_LINK_NAME
|
|
};
|
|
|
|
const LUID *
|
|
privilege_luid (cygpriv_idx idx)
|
|
{
|
|
if (idx < 0 || idx >= SE_NUM_PRIVS)
|
|
return NULL;
|
|
if (!cygheap->luid[idx].LowPart && !cygheap->luid[idx].HighPart
|
|
&& !LookupPrivilegeValue (NULL, cygpriv[idx], &cygheap->luid[idx]))
|
|
{
|
|
__seterrno ();
|
|
return NULL;
|
|
}
|
|
return &cygheap->luid[idx];
|
|
}
|
|
|
|
const LUID *
|
|
privilege_luid_by_name (const char *pname)
|
|
{
|
|
int idx;
|
|
|
|
if (!pname)
|
|
return NULL;
|
|
for (idx = 0; idx < SE_NUM_PRIVS; ++idx)
|
|
if (!strcmp (pname, cygpriv[idx]))
|
|
return privilege_luid ((cygpriv_idx) idx);
|
|
return NULL;
|
|
}
|
|
|
|
const char *
|
|
privilege_name (cygpriv_idx idx)
|
|
{
|
|
if (idx < 0 || idx >= SE_NUM_PRIVS)
|
|
return "<unknown privilege>";
|
|
return cygpriv[idx];
|
|
}
|
|
|
|
int
|
|
set_privilege (HANDLE token, cygpriv_idx privilege, bool enable)
|
|
{
|
|
int ret = -1;
|
|
const LUID *priv_luid;
|
|
TOKEN_PRIVILEGES new_priv, orig_priv;
|
|
DWORD size;
|
|
|
|
if (!(priv_luid = privilege_luid (privilege)))
|
|
{
|
|
__seterrno ();
|
|
goto out;
|
|
}
|
|
|
|
new_priv.PrivilegeCount = 1;
|
|
new_priv.Privileges[0].Luid = *priv_luid;
|
|
new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0;
|
|
|
|
if (!AdjustTokenPrivileges (token, FALSE, &new_priv,
|
|
sizeof orig_priv, &orig_priv, &size))
|
|
{
|
|
__seterrno ();
|
|
goto out;
|
|
}
|
|
/* AdjustTokenPrivileges returns TRUE even if the privilege could not
|
|
be enabled. GetLastError () returns an correct error code, though. */
|
|
if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED)
|
|
{
|
|
__seterrno ();
|
|
goto out;
|
|
}
|
|
|
|
/* If orig_priv.PrivilegeCount is 0, the privilege hasn't been changed. */
|
|
if (!orig_priv.PrivilegeCount)
|
|
ret = enable ? 1 : 0;
|
|
else
|
|
ret = (orig_priv.Privileges[0].Attributes & SE_PRIVILEGE_ENABLED) ? 1 : 0;
|
|
|
|
out:
|
|
syscall_printf ("%d = set_privilege ((token %x) %s, %d)",
|
|
ret, token, privilege_name (privilege), enable);
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
set_cygwin_privileges (HANDLE token)
|
|
{
|
|
set_privilege (token, SE_RESTORE_PRIV, true);
|
|
set_privilege (token, SE_BACKUP_PRIV, true);
|
|
}
|
|
|
|
/* Function to return a common SECURITY_DESCRIPTOR that
|
|
allows all access. */
|
|
|
|
|
|
SECURITY_DESCRIPTOR *__stdcall
|
|
get_null_sd ()
|
|
{
|
|
static NO_COPY SECURITY_DESCRIPTOR sd;
|
|
static NO_COPY SECURITY_DESCRIPTOR *null_sdp;
|
|
|
|
if (!null_sdp)
|
|
{
|
|
InitializeSecurityDescriptor (&sd, SECURITY_DESCRIPTOR_REVISION);
|
|
SetSecurityDescriptorDacl (&sd, TRUE, 0, FALSE);
|
|
null_sdp = &sd;
|
|
}
|
|
return null_sdp;
|
|
}
|
|
|
|
/* Initialize global security attributes.
|
|
Called from dcrt0.cc (_dll_crt0). */
|
|
|
|
void
|
|
init_global_security ()
|
|
{
|
|
sec_none.nLength = sec_none_nih.nLength =
|
|
sec_all.nLength = sec_all_nih.nLength = sizeof (SECURITY_ATTRIBUTES);
|
|
sec_none.bInheritHandle = sec_all.bInheritHandle = TRUE;
|
|
sec_none_nih.bInheritHandle = sec_all_nih.bInheritHandle = FALSE;
|
|
sec_none.lpSecurityDescriptor = sec_none_nih.lpSecurityDescriptor = NULL;
|
|
sec_all.lpSecurityDescriptor = sec_all_nih.lpSecurityDescriptor =
|
|
get_null_sd ();
|
|
}
|
|
|
|
bool
|
|
sec_acl (PACL acl, bool original, bool admins, PSID sid1, PSID sid2, DWORD access2)
|
|
{
|
|
size_t acl_len = MAX_DACL_LEN(5);
|
|
LPVOID pAce;
|
|
cygpsid psid;
|
|
|
|
#ifdef DEBUGGING
|
|
if ((unsigned long) acl % 4)
|
|
api_fatal ("Incorrectly aligned incoming ACL buffer!");
|
|
#endif
|
|
if (!InitializeAcl (acl, acl_len, ACL_REVISION))
|
|
{
|
|
debug_printf ("InitializeAcl %E");
|
|
return false;
|
|
}
|
|
if (sid1)
|
|
if (!AddAccessAllowedAce (acl, ACL_REVISION,
|
|
GENERIC_ALL, sid1))
|
|
debug_printf ("AddAccessAllowedAce(sid1) %E");
|
|
if (original && (psid = cygheap->user.saved_sid ())
|
|
&& psid != sid1 && psid != well_known_system_sid)
|
|
if (!AddAccessAllowedAce (acl, ACL_REVISION,
|
|
GENERIC_ALL, psid))
|
|
debug_printf ("AddAccessAllowedAce(original) %E");
|
|
if (sid2)
|
|
if (!AddAccessAllowedAce (acl, ACL_REVISION,
|
|
access2, sid2))
|
|
debug_printf ("AddAccessAllowedAce(sid2) %E");
|
|
if (admins)
|
|
if (!AddAccessAllowedAce (acl, ACL_REVISION,
|
|
GENERIC_ALL, well_known_admins_sid))
|
|
debug_printf ("AddAccessAllowedAce(admin) %E");
|
|
if (!AddAccessAllowedAce (acl, ACL_REVISION,
|
|
GENERIC_ALL, well_known_system_sid))
|
|
debug_printf ("AddAccessAllowedAce(system) %E");
|
|
FindFirstFreeAce (acl, &pAce);
|
|
if (pAce)
|
|
acl->AclSize = (char *) pAce - (char *) acl;
|
|
else
|
|
debug_printf ("FindFirstFreeAce %E");
|
|
|
|
return true;
|
|
}
|
|
|
|
PSECURITY_ATTRIBUTES __stdcall
|
|
__sec_user (PVOID sa_buf, PSID sid1, PSID sid2, DWORD access2, BOOL inherit)
|
|
{
|
|
PSECURITY_ATTRIBUTES psa = (PSECURITY_ATTRIBUTES) sa_buf;
|
|
PSECURITY_DESCRIPTOR psd = (PSECURITY_DESCRIPTOR)
|
|
((char *) sa_buf + sizeof (*psa));
|
|
PACL acl = (PACL) ((char *) sa_buf + sizeof (*psa) + sizeof (*psd));
|
|
|
|
#ifdef DEBUGGING
|
|
if ((unsigned long) sa_buf % 4)
|
|
api_fatal ("Incorrectly aligned incoming SA buffer!");
|
|
#endif
|
|
if (!wincap.has_security ()
|
|
|| !sec_acl (acl, true, true, sid1, sid2, access2))
|
|
return inherit ? &sec_none : &sec_none_nih;
|
|
|
|
if (!InitializeSecurityDescriptor (psd, SECURITY_DESCRIPTOR_REVISION))
|
|
debug_printf ("InitializeSecurityDescriptor %E");
|
|
|
|
/*
|
|
* Setting the owner lets the created security attribute not work
|
|
* on NT4 SP3 Server. Don't know why, but the function still does
|
|
* what it should do also if the owner isn't set.
|
|
*/
|
|
#if 0
|
|
if (!SetSecurityDescriptorOwner (psd, sid, FALSE))
|
|
debug_printf ("SetSecurityDescriptorOwner %E");
|
|
#endif
|
|
|
|
if (!SetSecurityDescriptorDacl (psd, TRUE, acl, FALSE))
|
|
debug_printf ("SetSecurityDescriptorDacl %E");
|
|
|
|
psa->nLength = sizeof (SECURITY_ATTRIBUTES);
|
|
psa->lpSecurityDescriptor = psd;
|
|
psa->bInheritHandle = inherit;
|
|
return psa;
|
|
}
|