/* uinfo.cc: user info (uid, gid, etc...)
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
- 2006, 2007, 2008 Red Hat, Inc.
+ 2006, 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.
This file is part of Cygwin.
void
cygheap_user::init ()
{
- char user_name[UNLEN + 1];
+ WCHAR user_name[UNLEN + 1];
DWORD user_name_len = UNLEN + 1;
- set_name (GetUserName (user_name, &user_name_len) ? user_name : "unknown");
+ /* This code is only run if a Cygwin process gets started by a native
+ Win32 process. We try to get the username from the environment,
+ first USERNAME (Win32), then USER (POSIX). If that fails (which is
+ very unlikely), it only has an impact if we don't have an entry in
+ /etc/passwd for this user either. In that case the username sticks
+ to "unknown". Since this is called early in initialization, and
+ since we don't want pull in a dependency to any other DLL except
+ ntdll and kernel32 at this early stage, don't call GetUserName,
+ GetUserNameEx, NetWkstaUserGetInfo, etc. */
+ if (GetEnvironmentVariableW (L"USERNAME", user_name, user_name_len)
+ || GetEnvironmentVariableW (L"USER", user_name, user_name_len))
+ {
+ char mb_user_name[user_name_len = sys_wcstombs (NULL, 0, user_name)];
+ sys_wcstombs (mb_user_name, user_name_len, user_name);
+ set_name (mb_user_name);
+ }
+ else
+ set_name ("unknown");
- DWORD siz;
+ NTSTATUS status;
+ ULONG size;
PSECURITY_DESCRIPTOR psd;
- if (!GetTokenInformation (hProcToken, TokenPrimaryGroup,
- &groups.pgsid, sizeof (cygsid), &siz))
- system_printf ("GetTokenInformation (TokenPrimaryGroup), %E");
+ status = NtQueryInformationToken (hProcToken, TokenPrimaryGroup,
+ &groups.pgsid, sizeof (cygsid), &size);
+ if (!NT_SUCCESS (status))
+ system_printf ("NtQueryInformationToken (TokenPrimaryGroup), %p", status);
/* Get the SID from current process and store it in effec_cygsid */
- if (!GetTokenInformation (hProcToken, TokenUser, &effec_cygsid,
- sizeof (cygsid), &siz))
+ status = NtQueryInformationToken (hProcToken, TokenUser, &effec_cygsid,
+ sizeof (cygsid), &size);
+ if (!NT_SUCCESS (status))
{
- system_printf ("GetTokenInformation (TokenUser), %E");
+ system_printf ("NtQueryInformationToken (TokenUser), %p", status);
return;
}
/* Set token owner to the same value as token user */
- if (!SetTokenInformation (hProcToken, TokenOwner, &effec_cygsid,
- sizeof (cygsid)))
- debug_printf ("SetTokenInformation(TokenOwner), %E");
+ status = NtSetInformationToken (hProcToken, TokenOwner, &effec_cygsid,
+ sizeof (cygsid));
+ if (!NT_SUCCESS (status))
+ debug_printf ("NtSetInformationToken(TokenOwner), %p", status);
/* Standard way to build a security descriptor with the usual DACL */
PSECURITY_ATTRIBUTES sa_buf = (PSECURITY_ATTRIBUTES) alloca (1024);
psd = (PSECURITY_DESCRIPTOR)
- (sec_user_nih (sa_buf, sid()))->lpSecurityDescriptor;
+ (sec_user_nih (sa_buf, sid()))->lpSecurityDescriptor;
- BOOL acl_exists, dummy;
+ BOOLEAN acl_exists, dummy;
TOKEN_DEFAULT_DACL dacl;
- if (GetSecurityDescriptorDacl (psd, &acl_exists, &dacl.DefaultDacl, &dummy)
- && acl_exists && dacl.DefaultDacl)
+
+ status = RtlGetDaclSecurityDescriptor (psd, &acl_exists, &dacl.DefaultDacl,
+ &dummy);
+ if (NT_SUCCESS (status) && acl_exists && dacl.DefaultDacl)
{
- NTSTATUS status;
/* Set the default DACL and the process DACL */
- if (!SetTokenInformation (hProcToken, TokenDefaultDacl, &dacl,
- sizeof (dacl)))
- system_printf ("SetTokenInformation (TokenDefaultDacl), %E");
- if ((status = NtSetSecurityObject (hMainProc, DACL_SECURITY_INFORMATION,
- psd)))
+ status = NtSetInformationToken (hProcToken, TokenDefaultDacl, &dacl,
+ sizeof (dacl));
+ if (!NT_SUCCESS (status))
+ system_printf ("NtSetInformationToken (TokenDefaultDacl), %p", status);
+ if ((status = NtSetSecurityObject (NtCurrentProcess (),
+ DACL_SECURITY_INFORMATION, psd)))
system_printf ("NtSetSecurityObject, %lx", status);
}
else
if (gsid != user.groups.pgsid)
{
/* Set primary group to the group in /etc/passwd. */
- if (!SetTokenInformation (hProcToken, TokenPrimaryGroup,
- &gsid, sizeof gsid))
- debug_printf ("SetTokenInformation(TokenPrimaryGroup), %E");
+ NTSTATUS status = NtSetInformationToken (hProcToken,
+ TokenPrimaryGroup,
+ &gsid, sizeof gsid);
+ if (!NT_SUCCESS (status))
+ debug_printf ("NtSetInformationToken (TokenPrimaryGroup), %p",
+ status);
else
user.groups.pgsid = gsid;
clear_procimptoken ();
else if (cygheap->user.issetuid ()
&& cygheap->user.saved_uid == cygheap->user.real_uid
&& cygheap->user.saved_gid == cygheap->user.real_gid
- && !cygheap->user.groups.issetgroups ())
+ && !cygheap->user.groups.issetgroups ()
+ && !cygheap->user.setuid_to_restricted)
{
cygheap->user.reimpersonate ();
return;
cygheap->user.internal_token = NO_IMPERSONATION;
cygheap->user.curr_primary_token = NO_IMPERSONATION;
cygheap->user.curr_imp_token = NO_IMPERSONATION;
+ cygheap->user.ext_token_is_restricted = false;
+ cygheap->user.curr_token_is_restricted = false;
+ cygheap->user.setuid_to_restricted = false;
cygheap->user.set_saved_sid (); /* Update the original sid */
- cygheap->user.reimpersonate ();
+ cygheap->user.deimpersonate ();
}
extern "C" int
getlogin_r (char *name, size_t namesize)
{
- char *login = getlogin ();
+ const char *login = cygheap->user.name ();
size_t len = strlen (login) + 1;
if (len > namesize)
return ERANGE;
extern "C" char *
getlogin (void)
{
- return strcpy (_my_tls.locals.username, cygheap->user.name ());
+ static char username[UNLEN];
+ int ret = getlogin_r (username, UNLEN);
+ if (ret)
+ {
+ set_errno (ret);
+ return NULL;
+ }
+ return username;
}
extern "C" __uid32_t
if (what == CH_HOME)
{
char *p;
- if (homedrive)
- newhomedrive = homedrive;
- else if ((p = getenv ("HOMEDRIVE")))
- newhomedrive = p;
-
- if (homepath)
- newhomepath = homepath;
- else if ((p = getenv ("HOMEPATH")))
- newhomepath = p;
if ((p = getenv ("HOME")))
debug_printf ("HOME is already in the environment %s", p);
debug_printf ("Set HOME (from /etc/passwd) to %s", pw->pw_dir);
setenv ("HOME", pw->pw_dir, 1);
}
- else if (!newhomedrive || !newhomepath)
- setenv ("HOME", "/", 1);
else
{
- char *home = tp.c_get ();
- char *buf = tp.c_get ();
- strcpy (buf, newhomedrive);
- strcat (buf, newhomepath);
- cygwin_conv_path (CCP_WIN_A_TO_POSIX | CCP_ABSOLUTE, buf, home,
- NT_MAX_PATH);
- debug_printf ("Set HOME (from HOMEDRIVE/HOMEPATH) to %s", home);
+ char home[strlen (name ()) + 8];
+
+ debug_printf ("Set HOME to default /home/USER");
+ __small_sprintf (home, "/home/%s", name ());
setenv ("HOME", home, 1);
}
}
if (!(ret = NetUserGetInfo (wlogsrv, wuser, 3, (LPBYTE *) &ui)))
{
sys_wcstombs (homepath_env_buf, NT_MAX_PATH,
- ui->usri3_home_dir);
+ ui->usri3_home_dir);
if (!homepath_env_buf[0])
{
sys_wcstombs (homepath_env_buf, NT_MAX_PATH,
if (pwinname && test_uid (pdomain, name, namelen))
return pdomain;
- char username[UNLEN + 1];
- DWORD ulen = sizeof (username);
- char userdomain[DNLEN + 1];
- DWORD dlen = sizeof (userdomain);
+ DWORD ulen = UNLEN + 1;
+ WCHAR username[ulen];
+ DWORD dlen = MAX_DOMAIN_NAME_LEN + 1;
+ WCHAR userdomain[dlen];
SID_NAME_USE use;
cfree_and_set (pwinname, almost_null);
cfree_and_set (pdomain, almost_null);
- if (!LookupAccountSid (NULL, sid (), username, &ulen,
- userdomain, &dlen, &use))
+ if (!LookupAccountSidW (NULL, sid (), username, &ulen,
+ userdomain, &dlen, &use))
__seterrno ();
else
{
- pwinname = cstrdup (username);
- pdomain = cstrdup (userdomain);
+ sys_wcstombs_alloc (&pwinname, HEAP_STR, username);
+ sys_wcstombs_alloc (&pdomain, HEAP_STR, userdomain);
}
return pdomain;
}
{
if (!psystemroot)
{
- int size = GetWindowsDirectory (NULL, 0);
+ int size = GetSystemWindowsDirectoryW (NULL, 0);
if (size > 0)
{
- psystemroot = (char *) cmalloc_abort (HEAP_STR, ++size);
- size = GetWindowsDirectory (psystemroot, size);
- if (size <= 0)
- {
- cfree (psystemroot);
- psystemroot = NULL;
- }
+ WCHAR wsystemroot[size];
+ size = GetSystemWindowsDirectoryW (wsystemroot, size);
+ if (size > 0)
+ sys_wcstombs_alloc (&psystemroot, HEAP_STR, wsystemroot);
}
if (size <= 0)
- debug_printf ("GetWindowsDirectory(), %E");
+ debug_printf ("GetSystemWindowsDirectoryW(), %E");
}
return psystemroot;
}
curr_lines = 0;
if (!path &&
- !(path = (PWCHAR) malloc ((wcslen (cygwin_shared->installation_root)
+ !(path = (PWCHAR) malloc ((wcslen (installation_root)
+ wcslen (rel_path) + 1) * sizeof (WCHAR))))
{
paranoid_printf ("malloc (%W) failed", rel_path);
goto out;
}
- wcpcpy (wcpcpy (path, cygwin_shared->installation_root), rel_path);
+ wcpcpy (wcpcpy (path, installation_root), rel_path);
RtlInitUnicodeString (&upath, path);
InitializeObjectAttributes (&attr, &upath, OBJ_CASE_INSENSITIVE, NULL, NULL);
paranoid_printf ("%S", &upath);
status = NtOpenFile (&fh, SYNCHRONIZE | FILE_READ_DATA, &attr, &io,
- FILE_SHARE_VALID_FLAGS, FILE_SYNCHRONOUS_IO_NONALERT);
+ FILE_SHARE_VALID_FLAGS,
+ FILE_SYNCHRONOUS_IO_NONALERT
+ | FILE_OPEN_FOR_BACKUP_INTENT);
if (!NT_SUCCESS (status))
{
paranoid_printf ("NtOpenFile(%S) failed, status %p", &upath, status);
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