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Diffstat (limited to 'winsup/cygwin/security.cc')
-rw-r--r--winsup/cygwin/security.cc763
1 files changed, 0 insertions, 763 deletions
diff --git a/winsup/cygwin/security.cc b/winsup/cygwin/security.cc
deleted file mode 100644
index 0a89b8dd6..000000000
--- a/winsup/cygwin/security.cc
+++ /dev/null
@@ -1,763 +0,0 @@
-/* security.cc: NT security functions
-
- Copyright 1997, 1998, 1999, 2000, 2001 Cygnus Solutions.
-
- Originaly written by Gunther Ebert, gunther.ebert@ixos-leipzig.de
- Completely rewritten 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 <errno.h>
-#include <limits.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/acl.h>
-#include <ctype.h>
-#include <wingdi.h>
-#include <winuser.h>
-#include "cygerrno.h"
-#include "perprocess.h"
-#include "fhandler.h"
-#include "path.h"
-#include "dtable.h"
-#include "sync.h"
-#include "sigproc.h"
-#include "pinfo.h"
-#include "cygheap.h"
-#include "security.h"
-
-extern BOOL allow_ntea;
-BOOL allow_ntsec = FALSE;
-/* allow_smbntsec is handled exclusively in path.cc (path_conv::check).
- It's defined here because of it's strong relationship to allow_ntsec.
- The default is TRUE to reflect the old behaviour. */
-BOOL allow_smbntsec = TRUE;
-
-extern "C"
-void
-cygwin_set_impersonation_token (const HANDLE hToken)
-{
- debug_printf ("set_impersonation_token (%d)", hToken);
- if (cygheap->user.token != hToken)
- {
- if (cygheap->user.token != INVALID_HANDLE_VALUE)
- CloseHandle (cygheap->user.token);
- cygheap->user.token = hToken;
- cygheap->user.impersonated = FALSE;
- }
-}
-
-extern "C"
-HANDLE
-cygwin_logon_user (const struct passwd *pw, const char *password)
-{
- if (os_being_run != winNT)
- {
- set_errno (ENOSYS);
- return INVALID_HANDLE_VALUE;
- }
- if (!pw)
- {
- set_errno (EINVAL);
- return INVALID_HANDLE_VALUE;
- }
-
- char *c, *nt_user, *nt_domain = NULL;
- char usernamebuf[256];
- HANDLE hToken;
-
- strcpy (usernamebuf, pw->pw_name);
- debug_printf ("pw_gecos = %x (%s)", pw->pw_gecos, pw->pw_gecos);
- if (pw->pw_gecos)
- {
- if ((c = strstr (pw->pw_gecos, "U-")) != NULL &&
- (c == pw->pw_gecos || c[-1] == ','))
- {
- usernamebuf[0] = '\0';
- strncat (usernamebuf, c + 2, 255);
- if ((c = strchr (usernamebuf, ',')) != NULL)
- *c = '\0';
- }
- }
- nt_user = usernamebuf;
- if ((c = strchr (nt_user, '\\')) != NULL)
- {
- nt_domain = nt_user;
- *c = '\0';
- nt_user = c + 1;
- }
- debug_printf ("LogonUserA (%s, %s, %s, ...)", nt_user, nt_domain, password);
- if (!LogonUserA (nt_user, nt_domain, (char *) password,
- LOGON32_LOGON_INTERACTIVE,
- LOGON32_PROVIDER_DEFAULT,
- &hToken)
- || !SetHandleInformation (hToken,
- HANDLE_FLAG_INHERIT,
- HANDLE_FLAG_INHERIT))
- {
- __seterrno ();
- return INVALID_HANDLE_VALUE;
- }
- debug_printf ("%d = logon_user(%s,...)", hToken, pw->pw_name);
- return hToken;
-}
-
-/* read_sd reads a security descriptor from a file.
- In case of error, -1 is returned and errno is set.
- If sd_buf is too small, 0 is returned and sd_size
- is set to the needed buffer size.
- On success, 1 is returned.
-
- GetFileSecurity() is used instead of BackupRead()
- to avoid access denied errors if the caller has
- not the permission to open that file for read.
-
- Originally the function should return the size
- of the SD on success. Unfortunately NT returns
- 0 in `len' on success, while W2K returns the
- correct size!
-*/
-
-LONG
-read_sd(const char *file, PSECURITY_DESCRIPTOR sd_buf, LPDWORD sd_size)
-{
- /* Check parameters */
- if (!sd_size)
- {
- set_errno (EINVAL);
- return -1;
- }
-
- debug_printf("file = %s", file);
-
- DWORD len = 0;
- const char *pfile = file;
- char fbuf [PATH_MAX];
- if (current_codepage == oem_cp)
- {
- DWORD fname_len = min (sizeof (fbuf) - 1, strlen (file));
- bzero (fbuf, sizeof (fbuf));
- OemToCharBuff(file, fbuf, fname_len);
- pfile = fbuf;
- }
-
- if (!GetFileSecurity (pfile,
- OWNER_SECURITY_INFORMATION
- | GROUP_SECURITY_INFORMATION
- | DACL_SECURITY_INFORMATION,
- sd_buf, *sd_size, &len))
- {
- __seterrno ();
- return -1;
- }
- debug_printf("file = %s: len=%d", file, len);
- if (len > *sd_size)
- {
- *sd_size = len;
- return 0;
- }
- return 1;
-}
-
-LONG
-write_sd(const char *file, PSECURITY_DESCRIPTOR sd_buf, DWORD sd_size)
-{
- /* Check parameters */
- if (!sd_buf || !sd_size)
- {
- set_errno (EINVAL);
- return -1;
- }
-
- /* No need to be thread save. */
- static BOOL first_time = TRUE;
- if (first_time)
- {
- set_process_privilege (SE_RESTORE_NAME);
- first_time = FALSE;
- }
-
- HANDLE fh;
- fh = CreateFile (file,
- WRITE_OWNER | WRITE_DAC,
- FILE_SHARE_READ | FILE_SHARE_WRITE,
- &sec_none_nih,
- OPEN_EXISTING,
- FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS,
- NULL);
-
- if (fh == INVALID_HANDLE_VALUE)
- {
- __seterrno ();
- return -1;
- }
-
- LPVOID context = NULL;
- DWORD bytes_written = 0;
- WIN32_STREAM_ID header;
-
- memset (&header, 0, sizeof (header));
- /* write new security info header */
- header.dwStreamId = BACKUP_SECURITY_DATA;
- header.dwStreamAttributes = STREAM_CONTAINS_SECURITY;
- header.Size.HighPart = 0;
- header.Size.LowPart = sd_size;
- header.dwStreamNameSize = 0;
- if (!BackupWrite (fh, (LPBYTE) &header,
- 3 * sizeof (DWORD) + sizeof (LARGE_INTEGER),
- &bytes_written, FALSE, TRUE, &context))
- {
- __seterrno ();
- CloseHandle (fh);
- return -1;
- }
-
- /* write new security descriptor */
- if (!BackupWrite (fh, (LPBYTE) sd_buf,
- header.Size.LowPart + header.dwStreamNameSize,
- &bytes_written, FALSE, TRUE, &context))
- {
- /* Samba returns ERROR_NOT_SUPPORTED.
- FAT returns ERROR_INVALID_SECURITY_DESCR.
- This shouldn't return as error, but better be ignored. */
- DWORD ret = GetLastError ();
- if (ret != ERROR_NOT_SUPPORTED && ret != ERROR_INVALID_SECURITY_DESCR)
- {
- __seterrno ();
- BackupWrite (fh, NULL, 0, &bytes_written, TRUE, TRUE, &context);
- CloseHandle (fh);
- return -1;
- }
- }
-
- /* terminate the restore process */
- BackupWrite (fh, NULL, 0, &bytes_written, TRUE, TRUE, &context);
- CloseHandle (fh);
- return 0;
-}
-
-static int
-get_nt_attribute (const char *file, int *attribute,
- uid_t *uidret, gid_t *gidret)
-{
- if (os_being_run != winNT)
- return 0;
-
- syscall_printf ("file: %s", file);
-
- /* Yeah, sounds too much, but I've seen SDs of 2100 bytes!*/
- DWORD sd_size = 4096;
- char sd_buf[4096];
- PSECURITY_DESCRIPTOR psd = (PSECURITY_DESCRIPTOR) sd_buf;
-
- int ret;
- if ((ret = read_sd (file, psd, &sd_size)) <= 0)
- {
- debug_printf ("read_sd %E");
- return ret;
- }
-
- PSID owner_sid;
- PSID group_sid;
- BOOL dummy;
-
- if (!GetSecurityDescriptorOwner (psd, &owner_sid, &dummy))
- debug_printf ("GetSecurityDescriptorOwner %E");
- if (!GetSecurityDescriptorGroup (psd, &group_sid, &dummy))
- debug_printf ("GetSecurityDescriptorGroup %E");
-
- PACL acl;
- BOOL acl_exists;
-
- if (!GetSecurityDescriptorDacl (psd, &acl_exists, &acl, &dummy))
- {
- __seterrno ();
- debug_printf ("GetSecurityDescriptorDacl %E");
- return -1;
- }
-
- uid_t uid = get_uid_from_sid (owner_sid);
- gid_t gid = get_gid_from_sid (group_sid);
- if (uidret)
- *uidret = uid;
- if (gidret)
- *gidret = gid;
-
- if (!attribute)
- {
- syscall_printf ("file: %s uid %d, gid %d", file, uid, gid);
- return 0;
- }
-
- BOOL grp_member = is_grp_member (uid, gid);
-
- if (!acl_exists || !acl)
- {
- *attribute |= S_IRWXU | S_IRWXG | S_IRWXO;
- syscall_printf ("file: %s No ACL = %x, uid %d, gid %d",
- file, *attribute, uid, gid);
- return 0;
- }
-
- ACCESS_ALLOWED_ACE *ace;
- int allow = 0;
- int deny = 0;
- int *flags, *anti;
-
- for (DWORD i = 0; i < acl->AceCount; ++i)
- {
- if (!GetAce (acl, i, (PVOID *) &ace))
- continue;
- if (ace->Header.AceFlags & INHERIT_ONLY_ACE)
- continue;
- switch (ace->Header.AceType)
- {
- case ACCESS_ALLOWED_ACE_TYPE:
- flags = &allow;
- anti = &deny;
- break;
- case ACCESS_DENIED_ACE_TYPE:
- flags = &deny;
- anti = &allow;
- break;
- default:
- continue;
- }
-
- PSID ace_sid = (PSID) &ace->SidStart;
- if (owner_sid && EqualSid (ace_sid, owner_sid))
- {
- if (ace->Mask & FILE_READ_DATA)
- *flags |= S_IRUSR;
- if (ace->Mask & FILE_WRITE_DATA)
- *flags |= S_IWUSR;
- if (ace->Mask & FILE_EXECUTE)
- *flags |= S_IXUSR;
- }
- else if (group_sid && EqualSid (ace_sid, group_sid))
- {
- if (ace->Mask & FILE_READ_DATA)
- *flags |= S_IRGRP
- | ((grp_member && !(*anti & S_IRUSR)) ? S_IRUSR : 0);
- if (ace->Mask & FILE_WRITE_DATA)
- *flags |= S_IWGRP
- | ((grp_member && !(*anti & S_IWUSR)) ? S_IWUSR : 0);
- if (ace->Mask & FILE_EXECUTE)
- *flags |= S_IXGRP
- | ((grp_member && !(*anti & S_IXUSR)) ? S_IXUSR : 0);
- }
- else if (EqualSid (ace_sid, get_world_sid ()))
- {
- if (ace->Mask & FILE_READ_DATA)
- *flags |= S_IROTH
- | ((!(*anti & S_IRGRP)) ? S_IRGRP : 0)
- | ((!(*anti & S_IRUSR)) ? S_IRUSR : 0);
- if (ace->Mask & FILE_WRITE_DATA)
- *flags |= S_IWOTH
- | ((!(*anti & S_IWGRP)) ? S_IWGRP : 0)
- | ((!(*anti & S_IWUSR)) ? S_IWUSR : 0);
- if (ace->Mask & FILE_EXECUTE)
- {
- *flags |= S_IXOTH
- | ((!(*anti & S_IXGRP)) ? S_IXGRP : 0)
- | ((!(*anti & S_IXUSR)) ? S_IXUSR : 0);
- /* Sticky bit for directories according to linux rules. */
- if (!(ace->Mask & FILE_DELETE_CHILD)
- && S_ISDIR(*attribute)
- && !(*anti & S_ISVTX))
- *flags |= S_ISVTX;
- }
- }
- }
- *attribute &= ~(S_IRWXU|S_IRWXG|S_IRWXO|S_ISVTX);
- *attribute |= allow;
- *attribute &= ~deny;
- syscall_printf ("file: %s %x, uid %d, gid %d", file, *attribute, uid, gid);
- return 0;
-}
-
-int
-get_file_attribute (int use_ntsec, const char *file,
- int *attribute, uid_t *uidret, gid_t *gidret)
-{
- int res;
-
- if (use_ntsec && allow_ntsec)
- {
- res = get_nt_attribute (file, attribute, uidret, gidret);
- if (attribute && (*attribute & S_IFLNK) == S_IFLNK)
- *attribute |= S_IRWXU | S_IRWXG | S_IRWXO;
- return res;
- }
-
- if (uidret)
- *uidret = getuid ();
- if (gidret)
- *gidret = getgid ();
-
- if (!attribute)
- return 0;
-
- res = NTReadEA (file, ".UNIXATTR", (char *) attribute, sizeof (*attribute));
-
- /* symlinks are everything for everyone!*/
- if ((*attribute & S_IFLNK) == S_IFLNK)
- *attribute |= S_IRWXU | S_IRWXG | S_IRWXO;
-
- if (res <= 0)
- set_errno (ENOSYS);
- return res > 0 ? 0 : -1;
-}
-
-BOOL
-add_access_allowed_ace (PACL acl, int offset, DWORD attributes,
- PSID sid, size_t &len_add, DWORD inherit)
-{
- if (!AddAccessAllowedAce (acl, ACL_REVISION, attributes, sid))
- {
- __seterrno ();
- return FALSE;
- }
- ACCESS_ALLOWED_ACE *ace;
- if (GetAce(acl, offset, (PVOID *) &ace))
- ace->Header.AceFlags |= inherit;
- len_add += sizeof (ACCESS_DENIED_ACE) - sizeof (DWORD)
- + GetLengthSid (sid);
- return TRUE;
-}
-
-BOOL
-add_access_denied_ace (PACL acl, int offset, DWORD attributes,
- PSID sid, size_t &len_add, DWORD inherit)
-{
- if (!AddAccessDeniedAce (acl, ACL_REVISION, attributes, sid))
- {
- __seterrno ();
- return FALSE;
- }
- ACCESS_DENIED_ACE *ace;
- if (GetAce(acl, offset, (PVOID *) &ace))
- ace->Header.AceFlags |= inherit;
- len_add += sizeof (ACCESS_DENIED_ACE) - sizeof (DWORD)
- + GetLengthSid (sid);
- return TRUE;
-}
-
-PSECURITY_DESCRIPTOR
-alloc_sd (uid_t uid, gid_t gid, const char *logsrv, int attribute,
- PSECURITY_DESCRIPTOR sd_ret, DWORD *sd_size_ret)
-{
- BOOL dummy;
-
- if (os_being_run != winNT)
- return NULL;
-
- if (!sd_ret || !sd_size_ret)
- {
- set_errno (EINVAL);
- return NULL;
- }
-
- /* Get SID and name of new owner. */
- char owner[MAX_USER_NAME];
- char *owner_sid_buf[MAX_SID_LEN];
- PSID owner_sid = NULL;
- struct passwd *pw = getpwuid (uid);
- strcpy (owner, pw ? pw->pw_name : getlogin ());
- owner_sid = (PSID) owner_sid_buf;
- if ((!pw || !get_pw_sid (owner_sid, pw))
- && !lookup_name (owner, logsrv, owner_sid))
- return NULL;
- debug_printf ("owner: %s [%d]", owner,
- *GetSidSubAuthority((PSID) owner_sid,
- *GetSidSubAuthorityCount((PSID) owner_sid) - 1));
-
- /* Get SID and name of new group. */
- char *group_sid_buf[MAX_SID_LEN];
- PSID group_sid = NULL;
- struct group *grp = getgrgid (gid);
- if (grp)
- {
- group_sid = (PSID) group_sid_buf;
- if ((!grp || !get_gr_sid (group_sid, grp))
- && !lookup_name (grp->gr_name, logsrv, group_sid))
- return NULL;
- }
- else
- debug_printf ("no group");
-
- /* Initialize local security descriptor. */
- SECURITY_DESCRIPTOR sd;
- PSECURITY_DESCRIPTOR psd = NULL;
- if (!InitializeSecurityDescriptor (&sd, SECURITY_DESCRIPTOR_REVISION))
- {
- __seterrno ();
- return NULL;
- }
-
- /*
- * We set the SE_DACL_PROTECTED flag here to prevent the DACL from being modified
- * by inheritable ACEs.
- * This flag as well as the SetSecurityDescriptorControl call are available only
- * since Win2K.
- */
- static int win2KorHigher = -1;
- if (win2KorHigher == -1)
- {
- DWORD version = GetVersion ();
- win2KorHigher = (version & 0x80000000) || (version & 0xff) < 5 ? 0 : 1;
- }
- if (win2KorHigher > 0)
- SetSecurityDescriptorControl (&sd, SE_DACL_PROTECTED, SE_DACL_PROTECTED);
-
- /* Create owner for local security descriptor. */
- if (!SetSecurityDescriptorOwner(&sd, owner_sid, FALSE))
- {
- __seterrno ();
- return NULL;
- }
-
- /* Create group for local security descriptor. */
- if (group_sid && !SetSecurityDescriptorGroup(&sd, group_sid, FALSE))
- {
- __seterrno ();
- return NULL;
- }
-
- /* Initialize local access control list. */
- char acl_buf[3072];
- PACL acl = (PACL) acl_buf;
- if (!InitializeAcl (acl, 3072, ACL_REVISION))
- {
- __seterrno ();
- return NULL;
- }
-
- /*
- * VTX bit may only be set if executable for `other' is set.
- * For correct handling under WinNT, FILE_DELETE_CHILD has to
- * be (un)set in each ACE.
- */
- if (!(attribute & S_IXOTH))
- attribute &= ~S_ISVTX;
- if (!(attribute & S_IFDIR))
- attribute |= S_ISVTX;
-
- /* From here fill ACL. */
- size_t acl_len = sizeof (ACL);
- int ace_off = 0;
-
- /* Construct allow attribute for owner. */
- DWORD owner_allow = (STANDARD_RIGHTS_ALL & ~DELETE)
- | FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA;
- if (attribute & S_IRUSR)
- owner_allow |= FILE_GENERIC_READ;
- if (attribute & S_IWUSR)
- owner_allow |= FILE_GENERIC_WRITE | DELETE;
- if (attribute & S_IXUSR)
- owner_allow |= FILE_GENERIC_EXECUTE;
- if (!(attribute & S_ISVTX))
- owner_allow |= FILE_DELETE_CHILD;
-
- /* Construct allow attribute for group. */
- DWORD group_allow = STANDARD_RIGHTS_READ
- | FILE_READ_ATTRIBUTES | FILE_READ_EA;
- if (attribute & S_IRGRP)
- group_allow |= FILE_GENERIC_READ;
- if (attribute & S_IWGRP)
- group_allow |= STANDARD_RIGHTS_WRITE | FILE_GENERIC_WRITE | DELETE;
- if (attribute & S_IXGRP)
- group_allow |= FILE_GENERIC_EXECUTE;
- if (!(attribute & S_ISVTX))
- group_allow |= FILE_DELETE_CHILD;
-
- /* Construct allow attribute for everyone. */
- DWORD other_allow = STANDARD_RIGHTS_READ
- | FILE_READ_ATTRIBUTES | FILE_READ_EA;
- if (attribute & S_IROTH)
- other_allow |= FILE_GENERIC_READ;
- if (attribute & S_IWOTH)
- other_allow |= STANDARD_RIGHTS_WRITE | FILE_GENERIC_WRITE | DELETE;
- if (attribute & S_IXOTH)
- other_allow |= FILE_GENERIC_EXECUTE;
- if (!(attribute & S_ISVTX))
- other_allow |= FILE_DELETE_CHILD;
-
- /* Construct deny attributes for owner and group. */
- DWORD owner_deny = 0;
- if (is_grp_member (uid, gid))
- owner_deny = ~owner_allow & (group_allow | other_allow);
- else
- owner_deny = ~owner_allow & other_allow;
- owner_deny &= ~(STANDARD_RIGHTS_READ
- | FILE_READ_ATTRIBUTES | FILE_READ_EA
- | FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA);
- DWORD group_deny = ~group_allow & other_allow;
- group_deny &= ~(STANDARD_RIGHTS_READ | FILE_READ_ATTRIBUTES | FILE_READ_EA);
-
- /* Construct appropriate inherit attribute. */
- DWORD inherit = (attribute & S_IFDIR) ? INHERIT_ALL : DONT_INHERIT;
-
- /* Set deny ACE for owner. */
- if (owner_deny
- && !add_access_denied_ace (acl, ace_off++, owner_deny,
- owner_sid, acl_len, inherit))
- return NULL;
- /* Set allow ACE for owner. */
- if (!add_access_allowed_ace (acl, ace_off++, owner_allow,
- owner_sid, acl_len, inherit))
- return NULL;
- /* Set deny ACE for group. */
- if (group_deny
- && !add_access_denied_ace (acl, ace_off++, group_deny,
- group_sid, acl_len, inherit))
- return NULL;
- /* Set allow ACE for group. */
- if (!add_access_allowed_ace (acl, ace_off++, group_allow,
- group_sid, acl_len, inherit))
- return NULL;
-
- /* Get owner and group from current security descriptor. */
- PSID cur_owner_sid = NULL;
- PSID cur_group_sid = NULL;
- if (!GetSecurityDescriptorOwner (sd_ret, &cur_owner_sid, &dummy))
- debug_printf ("GetSecurityDescriptorOwner %E");
- if (!GetSecurityDescriptorGroup (sd_ret, &cur_group_sid, &dummy))
- debug_printf ("GetSecurityDescriptorGroup %E");
-
- /* Fill ACL with unrelated ACEs from current security descriptor. */
- PACL oacl;
- BOOL acl_exists;
- ACCESS_ALLOWED_ACE *ace;
- if (GetSecurityDescriptorDacl (sd_ret, &acl_exists, &oacl, &dummy)
- && acl_exists && oacl)
- for (DWORD i = 0; i < oacl->AceCount; ++i)
- if (GetAce (oacl, i, (PVOID *) &ace))
- {
- PSID ace_sid = (PSID) &ace->SidStart;
- /* Check for related ACEs. */
- if ((cur_owner_sid && EqualSid (ace_sid, cur_owner_sid))
- || (owner_sid && EqualSid (ace_sid, owner_sid))
- || (cur_group_sid && EqualSid (ace_sid, cur_group_sid))
- || (group_sid && EqualSid (ace_sid, group_sid))
- || (EqualSid (ace_sid, get_world_sid ())))
- continue;
- /*
- * Add unrelated ACCESS_DENIED_ACE to the beginning but
- * behind the owner_deny, ACCESS_ALLOWED_ACE to the end
- * but in front of the `everyone' ACE.
- */
- if (!AddAce(acl, ACL_REVISION,
- ace->Header.AceType == ACCESS_DENIED_ACE_TYPE ?
- (owner_deny ? 1 : 0) : MAXDWORD,
- (LPVOID) ace, ace->Header.AceSize))
- {
- __seterrno ();
- return NULL;
- }
- acl_len += ace->Header.AceSize;
- ++ace_off;
- }
-
- /* Set allow ACE for everyone. */
- if (!add_access_allowed_ace (acl, ace_off++, other_allow,
- get_world_sid (), acl_len, inherit))
- return NULL;
-
- /* Set AclSize to computed value. */
- acl->AclSize = acl_len;
- debug_printf ("ACL-Size: %d", acl_len);
-
- /* Create DACL for local security descriptor. */
- if (!SetSecurityDescriptorDacl (&sd, TRUE, acl, FALSE))
- {
- __seterrno ();
- return NULL;
- }
-
- /* Make self relative security descriptor. */
- *sd_size_ret = 0;
- MakeSelfRelativeSD (&sd, sd_ret, sd_size_ret);
- if (*sd_size_ret <= 0)
- {
- __seterrno ();
- return NULL;
- }
- if (!MakeSelfRelativeSD (&sd, sd_ret, sd_size_ret))
- {
- __seterrno ();
- return NULL;
- }
- psd = sd_ret;
- debug_printf ("Created SD-Size: %d", *sd_size_ret);
-
- return psd;
-}
-
-static int
-set_nt_attribute (const char *file, uid_t uid, gid_t gid,
- const char *logsrv, int attribute)
-{
- if (os_being_run != winNT)
- return 0;
-
- DWORD sd_size = 4096;
- char sd_buf[4096];
- PSECURITY_DESCRIPTOR psd = (PSECURITY_DESCRIPTOR) sd_buf;
-
- int ret;
- if ((ret = read_sd (file, psd, &sd_size)) <= 0)
- {
- debug_printf ("read_sd %E");
- return ret;
- }
-
- sd_size = 4096;
- if (!(psd = alloc_sd (uid, gid, logsrv, attribute, psd, &sd_size)))
- return -1;
-
- return write_sd (file, psd, sd_size);
-}
-
-int
-set_file_attribute (int use_ntsec, const char *file,
- uid_t uid, gid_t gid,
- int attribute, const char *logsrv)
-{
- /* symlinks are anything for everyone!*/
- if ((attribute & S_IFLNK) == S_IFLNK)
- attribute |= S_IRWXU | S_IRWXG | S_IRWXO;
-
- if (!use_ntsec || !allow_ntsec)
- {
- if (!NTWriteEA (file, ".UNIXATTR",
- (char *) &attribute, sizeof (attribute)))
- {
- __seterrno ();
- return -1;
- }
- return 0;
- }
-
- int ret = set_nt_attribute (file, uid, gid, logsrv, attribute);
- syscall_printf ("%d = set_file_attribute (%s, %d, %d, %p)",
- ret, file, uid, gid, attribute);
- return ret;
-}
-
-int
-set_file_attribute (int use_ntsec, const char *file, int attribute)
-{
- return set_file_attribute (use_ntsec, file,
- myself->uid, myself->gid,
- attribute, cygheap->user.logsrv ());
-}