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Once the selinux-at module appears on the list within import-gnulib.config this
patch is no longer needed.
diff --git a/aclocal.m4 b/aclocal.m4
index 1f97dda..61ad660 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1039,6 +1039,8 @@ m4_include([gnulib/m4/rpmatch.m4])
m4_include([gnulib/m4/same.m4])
m4_include([gnulib/m4/save-cwd.m4])
m4_include([gnulib/m4/savedir.m4])
+m4_include([gnulib/m4/selinux-context-h.m4])
+m4_include([gnulib/m4/selinux-selinux-h.m4])
m4_include([gnulib/m4/setenv.m4])
m4_include([gnulib/m4/ssize_t.m4])
m4_include([gnulib/m4/st_dm_mode.m4])
diff --git a/gnulib/lib/Makefile.am b/gnulib/lib/Makefile.am
index 59ed5f2..b13e509 100644
--- a/gnulib/lib/Makefile.am
+++ b/gnulib/lib/Makefile.am
@@ -1007,6 +1007,49 @@ EXTRA_libgnulib_a_SOURCES += savedir.c
## end gnulib module savedir
+## begin gnulib module selinux-at
+
+
+EXTRA_DIST += selinux-at.c selinux-at.h
+
+EXTRA_libgnulib_a_SOURCES += selinux-at.c
+
+## end gnulib module selinux-at
+
+## begin gnulib module selinux-h
+
+libgnulib_a_SOURCES += se-context.in.h se-selinux.in.h
+
+BUILT_SOURCES += selinux/selinux.h
+selinux/selinux.h: se-selinux.in.h
+ $(AM_V_at)$(MKDIR_P) selinux
+ $(AM_V_GEN)rm -f $@-t $@ && \
+ { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
+ sed -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
+ -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
+ -e 's|@''NEXT_SELINUX_SELINUX_H''@|$(NEXT_SELINUX_SELINUX_H)|g' \
+ < $(srcdir)/se-selinux.in.h; \
+ } > $@-t && \
+ chmod a-x $@-t && \
+ mv $@-t $@
+MOSTLYCLEANFILES += selinux/selinux.h selinux/selinux.h-t
+
+BUILT_SOURCES += $(SELINUX_CONTEXT_H)
+selinux/context.h: se-context.in.h
+ $(AM_V_at)$(MKDIR_P) selinux
+ $(AM_V_GEN)rm -f $@-t $@ && \
+ cp $(srcdir)/se-context.in.h $@-t && \
+ chmod a-x $@-t && \
+ mv $@-t $@
+MOSTLYCLEANFILES += selinux/context.h selinux/context.h-t
+MOSTLYCLEANDIRS += selinux
+
+EXTRA_DIST += getfilecon.c
+
+EXTRA_libgnulib_a_SOURCES += getfilecon.c
+
+## end gnulib module selinux-h
+
## begin gnulib module setenv
diff --git a/gnulib/lib/at-func.c b/gnulib/lib/at-func.c
index c7963fe..73be401 100644
--- a/gnulib/lib/at-func.c
+++ b/gnulib/lib/at-func.c
@@ -1,5 +1,5 @@
/* Define an at-style functions like fstatat, unlinkat, fchownat, etc.
- Copyright (C) 2006 Free Software Foundation, Inc.
+ Copyright (C) 2006, 2009 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -16,62 +16,106 @@
/* written by Jim Meyering */
-#define CALL_FUNC(F) \
- (AT_FUNC_USE_F1_COND \
+#include "dirname.h" /* solely for definition of IS_ABSOLUTE_FILE_NAME */
+#include "openat.h"
+#include "openat-priv.h"
+#include "save-cwd.h"
+
+#ifdef AT_FUNC_USE_F1_COND
+# define CALL_FUNC(F) \
+ (flag == AT_FUNC_USE_F1_COND \
? AT_FUNC_F1 (F AT_FUNC_POST_FILE_ARGS) \
: AT_FUNC_F2 (F AT_FUNC_POST_FILE_ARGS))
+# define VALIDATE_FLAG(F) \
+ if (flag & ~AT_FUNC_USE_F1_COND) \
+ { \
+ errno = EINVAL; \
+ return FUNC_FAIL; \
+ }
+#else
+# define CALL_FUNC(F) (AT_FUNC_F1 (F AT_FUNC_POST_FILE_ARGS))
+# define VALIDATE_FLAG(F) /* empty */
+#endif
+
+#ifdef AT_FUNC_RESULT
+# define FUNC_RESULT AT_FUNC_RESULT
+#else
+# define FUNC_RESULT int
+#endif
+
+#ifdef AT_FUNC_FAIL
+# define FUNC_FAIL AT_FUNC_FAIL
+#else
+# define FUNC_FAIL -1
+#endif
-/* Call AT_FUNC_F1 or AT_FUNC_F2 (testing AT_FUNC_USE_F1_COND to
- determine which) to operate on FILE, which is in the directory
- open on descriptor FD. If possible, do it without changing the
+/* Call AT_FUNC_F1 to operate on FILE, which is in the directory
+ open on descriptor FD. If AT_FUNC_USE_F1_COND is defined to a value,
+ AT_FUNC_POST_FILE_PARAM_DECLS must inlude a parameter named flag;
+ call AT_FUNC_F2 if FLAG is 0 or fail if FLAG contains more bits than
+ AT_FUNC_USE_F1_COND. Return int and fail with -1 unless AT_FUNC_RESULT
+ or AT_FUNC_FAIL are defined. If possible, do it without changing the
working directory. Otherwise, resort to using save_cwd/fchdir,
then AT_FUNC_F?/restore_cwd. If either the save_cwd or the restore_cwd
fails, then give a diagnostic and exit nonzero. */
-int
+FUNC_RESULT
AT_FUNC_NAME (int fd, char const *file AT_FUNC_POST_FILE_PARAM_DECLS)
{
+ /* Be careful to choose names unlikely to conflict with
+ AT_FUNC_POST_FILE_PARAM_DECLS. */
struct saved_cwd saved_cwd;
int saved_errno;
- int err;
+ FUNC_RESULT err;
+
+ VALIDATE_FLAG (flag);
if (fd == AT_FDCWD || IS_ABSOLUTE_FILE_NAME (file))
return CALL_FUNC (file);
{
- char buf[OPENAT_BUFFER_SIZE];
- char *proc_file = openat_proc_name (buf, fd, file);
+ char proc_buf[OPENAT_BUFFER_SIZE];
+ char *proc_file = openat_proc_name (proc_buf, fd, file);
if (proc_file)
{
- int proc_result = CALL_FUNC (proc_file);
- int proc_errno = errno;
- if (proc_file != buf)
- free (proc_file);
- /* If the syscall succeeds, or if it fails with an unexpected
- errno value, then return right away. Otherwise, fall through
- and resort to using save_cwd/restore_cwd. */
- if (0 <= proc_result)
- return proc_result;
- if (! EXPECTED_ERRNO (proc_errno))
- {
- errno = proc_errno;
- return proc_result;
- }
+ FUNC_RESULT proc_result = CALL_FUNC (proc_file);
+ int proc_errno = errno;
+ if (proc_file != proc_buf)
+ free (proc_file);
+ /* If the syscall succeeds, or if it fails with an unexpected
+ errno value, then return right away. Otherwise, fall through
+ and resort to using save_cwd/restore_cwd. */
+ if (FUNC_FAIL != proc_result)
+ return proc_result;
+ if (! EXPECTED_ERRNO (proc_errno))
+ {
+ errno = proc_errno;
+ return proc_result;
+ }
}
}
if (save_cwd (&saved_cwd) != 0)
openat_save_fail (errno);
+ if (0 <= fd && fd == saved_cwd.desc)
+ {
+ /* If saving the working directory collides with the user's
+ requested fd, then the user's fd must have been closed to
+ begin with. */
+ free_cwd (&saved_cwd);
+ errno = EBADF;
+ return FUNC_FAIL;
+ }
if (fchdir (fd) != 0)
{
saved_errno = errno;
free_cwd (&saved_cwd);
errno = saved_errno;
- return -1;
+ return FUNC_FAIL;
}
err = CALL_FUNC (file);
- saved_errno = (err < 0 ? errno : 0);
+ saved_errno = (err == FUNC_FAIL ? errno : 0);
if (restore_cwd (&saved_cwd) != 0)
openat_restore_fail (errno);
@@ -83,3 +127,5 @@ AT_FUNC_NAME (int fd, char const *file AT_FUNC_POST_FILE_PARAM_DECLS)
return err;
}
#undef CALL_FUNC
+#undef FUNC_RESULT
+#undef FUNC_FAIL
diff --git a/gnulib/lib/getfilecon.c b/gnulib/lib/getfilecon.c
new file mode 100644
index 0000000..d712307
--- /dev/null
+++ b/gnulib/lib/getfilecon.c
@@ -0,0 +1,87 @@
+/* wrap getfilecon, lgetfilecon, and fgetfilecon
+ Copyright (C) 2009 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* written by Jim Meyering */
+
+#include <config.h>
+
+#include <selinux/selinux.h>
+
+#include <sys/types.h>
+#include <errno.h>
+#include <string.h>
+
+/* FIXME: remove this once there is an errno-gnu module
+ that guarantees the definition of ENODATA. */
+#ifndef ENODATA
+# define ENODATA ENOTSUP
+#endif
+
+#undef getfilecon
+#undef lgetfilecon
+#undef fgetfilecon
+int getfilecon (char const *file, security_context_t *con);
+int lgetfilecon (char const *file, security_context_t *con);
+int fgetfilecon (int fd, security_context_t *con);
+
+/* getfilecon, lgetfilecon, and fgetfilecon can all misbehave, be it
+ via an old version of libselinux where these would return 0 and set the
+ result context to NULL, or via a modern kernel+lib operating on a file
+ from a disk whose attributes were set by a kernel from around 2006.
+ In that latter case, the functions return a length of 10 for the
+ "unlabeled" context. Map both failures to a return value of -1, and
+ set errno to ENOTSUP in the first case, and ENODATA in the latter. */
+
+static inline int
+map_to_failure (int ret, security_context_t *con)
+{
+ if (ret == 0)
+ {
+ errno = ENOTSUP;
+ return -1;
+ }
+
+ if (ret == 10 && strcmp (*con, "unlabeled") == 0)
+ {
+ freecon (*con);
+ errno = ENODATA;
+ return -1;
+ }
+
+ return ret;
+}
+
+int
+rpl_getfilecon (char const *file, security_context_t *con)
+{
+ int ret = getfilecon (file, con);
+ return map_to_failure (ret, con);
+}
+
+int
+rpl_lgetfilecon (char const *file, security_context_t *con)
+{
+ int ret = lgetfilecon (file, con);
+ return map_to_failure (ret, con);
+}
+
+int
+rpl_fgetfilecon (int fd, security_context_t *con)
+{
+ int ret = fgetfilecon (fd, con);
+ return map_to_failure (ret, con);
+}
diff --git a/gnulib/lib/openat.c b/gnulib/lib/openat.c
index 73f24b0..2b15bb5 100644
--- a/gnulib/lib/openat.c
+++ b/gnulib/lib/openat.c
@@ -1,5 +1,5 @@
/* provide a replacement openat function
- Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2004-2009 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -22,13 +22,108 @@
#include <stdarg.h>
#include <stddef.h>
+#include <string.h>
+#include <sys/stat.h>
#include "dirname.h" /* solely for definition of IS_ABSOLUTE_FILE_NAME */
-#include "fcntl--.h"
-#include "lstat.h"
#include "openat-priv.h"
#include "save-cwd.h"
+#if HAVE_OPENAT
+
+# undef openat
+
+/* Like openat, but work around Solaris 9 bugs with trailing slash. */
+int
+rpl_openat (int dfd, char const *filename, int flags, ...)
+{
+ mode_t mode;
+ int fd;
+
+ mode = 0;
+ if (flags & O_CREAT)
+ {
+ va_list arg;
+ va_start (arg, flags);
+
+ /* We have to use PROMOTED_MODE_T instead of mode_t, otherwise GCC 4
+ creates crashing code when 'mode_t' is smaller than 'int'. */
+ mode = va_arg (arg, PROMOTED_MODE_T);
+
+ va_end (arg);
+ }
+
+#if OPEN_TRAILING_SLASH_BUG
+ /* If the filename ends in a slash and one of O_CREAT, O_WRONLY, O_RDWR
+ is specified, then fail.
+ Rationale: POSIX <http://www.opengroup.org/susv3/basedefs/xbd_chap04.html>
+ says that
+ "A pathname that contains at least one non-slash character and that
+ ends with one or more trailing slashes shall be resolved as if a
+ single dot character ( '.' ) were appended to the pathname."
+ and
+ "The special filename dot shall refer to the directory specified by
+ its predecessor."
+ If the named file already exists as a directory, then
+ - if O_CREAT is specified, open() must fail because of the semantics
+ of O_CREAT,
+ - if O_WRONLY or O_RDWR is specified, open() must fail because POSIX
+ <http://www.opengroup.org/susv3/functions/open.html> says that it
+ fails with errno = EISDIR in this case.
+ If the named file does not exist or does not name a directory, then
+ - if O_CREAT is specified, open() must fail since open() cannot create
+ directories,
+ - if O_WRONLY or O_RDWR is specified, open() must fail because the
+ file does not contain a '.' directory. */
+ if (flags & (O_CREAT | O_WRONLY | O_RDWR))
+ {
+ size_t len = strlen (filename);
+ if (len > 0 && filename[len - 1] == '/')
+ {
+ errno = EISDIR;
+ return -1;
+ }
+ }
+#endif
+
+ fd = openat (dfd, filename, flags, mode);
+
+#if OPEN_TRAILING_SLASH_BUG
+ /* If the filename ends in a slash and fd does not refer to a directory,
+ then fail.
+ Rationale: POSIX <http://www.opengroup.org/susv3/basedefs/xbd_chap04.html>
+ says that
+ "A pathname that contains at least one non-slash character and that
+ ends with one or more trailing slashes shall be resolved as if a
+ single dot character ( '.' ) were appended to the pathname."
+ and
+ "The special filename dot shall refer to the directory specified by
+ its predecessor."
+ If the named file without the slash is not a directory, open() must fail
+ with ENOTDIR. */
+ if (fd >= 0)
+ {
+ /* We know len is positive, since open did not fail with ENOENT. */
+ size_t len = strlen (filename);
+ if (filename[len - 1] == '/')
+ {
+ struct stat statbuf;
+
+ if (fstat (fd, &statbuf) >= 0 && !S_ISDIR (statbuf.st_mode))
+ {
+ close (fd);
+ errno = ENOTDIR;
+ return -1;
+ }
+ }
+ }
+#endif
+
+ return fd;
+}
+
+#else /* !HAVE_OPENAT */
+
/* Replacement for Solaris' openat function.
<http://www.google.com/search?q=openat+site:docs.sun.com>
First, try to simulate it via open ("/proc/self/fd/FD/FILE").
@@ -47,12 +142,9 @@ openat (int fd, char const *file, int flags, ...)
va_list arg;
va_start (arg, flags);
- /* If mode_t is narrower than int, use the promoted type (int),
- not mode_t. Use sizeof to guess whether mode_t is narrower;
- we don't know of any practical counterexamples. */
- mode = (sizeof (mode_t) < sizeof (int)
- ? va_arg (arg, int)
- : va_arg (arg, mode_t));
+ /* We have to use PROMOTED_MODE_T instead of mode_t, otherwise GCC 4
+ creates crashing code when 'mode_t' is smaller than 'int'. */
+ mode = va_arg (arg, PROMOTED_MODE_T);
va_end (arg);
}
@@ -73,7 +165,7 @@ openat (int fd, char const *file, int flags, ...)
int
openat_permissive (int fd, char const *file, int flags, mode_t mode,
- int *cwd_errno)
+ int *cwd_errno)
{
struct saved_cwd saved_cwd;
int saved_errno;
@@ -88,18 +180,18 @@ openat_permissive (int fd, char const *file, int flags, mode_t mode,
char *proc_file = openat_proc_name (buf, fd, file);
if (proc_file)
{
- int open_result = open (proc_file, flags, mode);
- int open_errno = errno;
- if (proc_file != buf)
- free (proc_file);
- /* If the syscall succeeds, or if it fails with an unexpected
- errno value, then return right away. Otherwise, fall through
- and resort to using save_cwd/restore_cwd. */
- if (0 <= open_result || ! EXPECTED_ERRNO (open_errno))
- {
- errno = open_errno;
- return open_result;
- }
+ int open_result = open (proc_file, flags, mode);
+ int open_errno = errno;
+ if (proc_file != buf)
+ free (proc_file);
+ /* If the syscall succeeds, or if it fails with an unexpected
+ errno value, then return right away. Otherwise, fall through
+ and resort to using save_cwd/restore_cwd. */
+ if (0 <= open_result || ! EXPECTED_ERRNO (open_errno))
+ {
+ errno = open_errno;
+ return open_result;
+ }
}
}
@@ -107,9 +199,18 @@ openat_permissive (int fd, char const *file, int flags, mode_t mode,
if (! save_ok)
{
if (! cwd_errno)
- openat_save_fail (errno);
+ openat_save_fail (errno);
*cwd_errno = errno;
}
+ if (0 <= fd && fd == saved_cwd.desc)
+ {
+ /* If saving the working directory collides with the user's
+ requested fd, then the user's fd must have been closed to
+ begin with. */
+ free_cwd (&saved_cwd);
+ errno = EBADF;
+ return -1;
+ }
err = fchdir (fd);
saved_errno = errno;
@@ -119,11 +220,17 @@ openat_permissive (int fd, char const *file, int flags, mode_t mode,
err = open (file, flags, mode);
saved_errno = errno;
if (save_ok && restore_cwd (&saved_cwd) != 0)
- {
- if (! cwd_errno)
- openat_restore_fail (errno);
- *cwd_errno = errno;
- }
+ {
+ if (! cwd_errno)
+ {
+ /* Don't write a message to just-created fd 2. */
+ saved_errno = errno;
+ if (err == STDERR_FILENO)
+ close (err);
+ openat_restore_fail (saved_errno);
+ }
+ *cwd_errno = errno;
+ }
}
free_cwd (&saved_cwd);
@@ -144,125 +251,15 @@ openat_needs_fchdir (void)
char buf[OPENAT_BUFFER_SIZE];
char *proc_file = openat_proc_name (buf, fd, ".");
if (proc_file)
- {
- needs_fchdir = false;
- if (proc_file != buf)
- free (proc_file);
- }
+ {
+ needs_fchdir = false;
+ if (proc_file != buf)
+ free (proc_file);
+ }
close (fd);
}
return needs_fchdir;
}
-#if !HAVE_FDOPENDIR
-
-/* Replacement for Solaris' function by the same name.
- <http://www.google.com/search?q=fdopendir+site:docs.sun.com>
- First, try to simulate it via opendir ("/proc/self/fd/FD"). Failing
- that, simulate it by doing save_cwd/fchdir/opendir(".")/restore_cwd.
- If either the save_cwd or the restore_cwd fails (relatively unlikely),
- then give a diagnostic and exit nonzero.
- Otherwise, this function works just like Solaris' fdopendir.
-
- W A R N I N G:
- Unlike the other fd-related functions here, this one
- effectively consumes its FD parameter. The caller should not
- close or otherwise manipulate FD if this function returns successfully. */
-DIR *
-fdopendir (int fd)
-{
- struct saved_cwd saved_cwd;
- int saved_errno;
- DIR *dir;
-
- char buf[OPENAT_BUFFER_SIZE];
- char *proc_file = openat_proc_name (buf, fd, ".");
- if (proc_file)
- {
- dir = opendir (proc_file);
- saved_errno = errno;
- }
- else
- {
- dir = NULL;
- saved_errno = EOPNOTSUPP;
- }
-
- /* If the syscall fails with an expected errno value, resort to
- save_cwd/restore_cwd. */
- if (! dir && EXPECTED_ERRNO (saved_errno))
- {
- if (save_cwd (&saved_cwd) != 0)
- openat_save_fail (errno);
-
- if (fchdir (fd) != 0)
- {
- dir = NULL;
- saved_errno = errno;
- }
- else
- {
- dir = opendir (".");
- saved_errno = errno;
-
- if (restore_cwd (&saved_cwd) != 0)
- openat_restore_fail (errno);
- }
-
- free_cwd (&saved_cwd);
- }
-
- if (dir)
- close (fd);
- if (proc_file != buf)
- free (proc_file);
- errno = saved_errno;
- return dir;
-}
-
-#endif
-
-/* Replacement for Solaris' function by the same name.
- <http://www.google.com/search?q=fstatat+site:docs.sun.com>
- First, try to simulate it via l?stat ("/proc/self/fd/FD/FILE").
- Failing that, simulate it via save_cwd/fchdir/(stat|lstat)/restore_cwd.
- If either the save_cwd or the restore_cwd fails (relatively unlikely),
- then give a diagnostic and exit nonzero.
- Otherwise, this function works just like Solaris' fstatat. */
-
-#define AT_FUNC_NAME fstatat
-#define AT_FUNC_F1 lstat
-#define AT_FUNC_F2 stat
-#define AT_FUNC_USE_F1_COND flag == AT_SYMLINK_NOFOLLOW
-#define AT_FUNC_POST_FILE_PARAM_DECLS , struct stat *st, int flag
-#define AT_FUNC_POST_FILE_ARGS , st
-#include "at-func.c"
-#undef AT_FUNC_NAME
-#undef AT_FUNC_F1
-#undef AT_FUNC_F2
-#undef AT_FUNC_USE_F1_COND
-#undef AT_FUNC_POST_FILE_PARAM_DECLS
-#undef AT_FUNC_POST_FILE_ARGS
-
-/* Replacement for Solaris' function by the same name.
- <http://www.google.com/search?q=unlinkat+site:docs.sun.com>
- First, try to simulate it via (unlink|rmdir) ("/proc/self/fd/FD/FILE").
- Failing that, simulate it via save_cwd/fchdir/(unlink|rmdir)/restore_cwd.
- If either the save_cwd or the restore_cwd fails (relatively unlikely),
- then give a diagnostic and exit nonzero.
- Otherwise, this function works just like Solaris' unlinkat. */
-
-#define AT_FUNC_NAME unlinkat
-#define AT_FUNC_F1 rmdir
-#define AT_FUNC_F2 unlink
-#define AT_FUNC_USE_F1_COND flag == AT_REMOVEDIR
-#define AT_FUNC_POST_FILE_PARAM_DECLS , int flag
-#define AT_FUNC_POST_FILE_ARGS /* empty */
-#include "at-func.c"
-#undef AT_FUNC_NAME
-#undef AT_FUNC_F1
-#undef AT_FUNC_F2
-#undef AT_FUNC_USE_F1_COND
-#undef AT_FUNC_POST_FILE_PARAM_DECLS
-#undef AT_FUNC_POST_FILE_ARGS
+#endif /* !HAVE_OPENAT */
diff --git a/gnulib/lib/openat.h b/gnulib/lib/openat.h
index b5e4f11..433b998 100644
--- a/gnulib/lib/openat.h
+++ b/gnulib/lib/openat.h
@@ -1,5 +1,5 @@
/* provide a replacement openat function
- Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 2004-2006, 2008-2009 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -16,6 +16,9 @@
/* written by Jim Meyering */
+#ifndef _GL_HEADER_OPENAT
+#define _GL_HEADER_OPENAT
+
#include <fcntl.h>
#include <sys/types.h>
@@ -25,7 +28,7 @@
#include <stdbool.h>
#ifndef __attribute__
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8)
# define __attribute__(x) /* empty */
# endif
#endif
@@ -34,46 +37,10 @@
# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
#endif
-/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
- value exceeds INT_MAX, so its use as an int doesn't conform to the
- C standard, and GCC and Sun C complain in some cases. If the bug
- is present, undef AT_FDCWD here, so it can be redefined below. */
-#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
-# undef AT_FDCWD
-#endif
-
-/* Use the same bit pattern as Solaris 9, but with the proper
- signedness. The bit pattern is important, in case this actually is
- Solaris with the above workaround. */
-#ifndef AT_FDCWD
-# define AT_FDCWD (-3041965)
-#endif
-
-/* Use the same values as Solaris 9. This shouldn't matter, but
- there's no real reason to differ. */
-#ifndef AT_SYMLINK_NOFOLLOW
-# define AT_SYMLINK_NOFOLLOW 4096
-# define AT_REMOVEDIR 1
-#endif
-
-#ifdef __OPENAT_PREFIX
+#if !HAVE_OPENAT
-# undef openat
-# define __OPENAT_CONCAT(x, y) x ## y
-# define __OPENAT_XCONCAT(x, y) __OPENAT_CONCAT (x, y)
-# define __OPENAT_ID(y) __OPENAT_XCONCAT (__OPENAT_PREFIX, y)
-# define openat __OPENAT_ID (openat)
-int openat (int fd, char const *file, int flags, /* mode_t mode */ ...);
int openat_permissive (int fd, char const *file, int flags, mode_t mode,
int *cwd_errno);
-# if ! HAVE_FDOPENDIR
-# define fdopendir __OPENAT_ID (fdopendir)
-# endif
-DIR *fdopendir (int fd);
-# define fstatat __OPENAT_ID (fstatat)
-int fstatat (int fd, char const *file, struct stat *st, int flag);
-# define unlinkat __OPENAT_ID (unlinkat)
-int unlinkat (int fd, char const *file, int flag);
bool openat_needs_fchdir (void);
#else
@@ -84,19 +51,8 @@ bool openat_needs_fchdir (void);
#endif
-#if HAVE_OPENAT && ! LSTAT_FOLLOWS_SLASHED_SYMLINK
-int rpl_fstatat (int fd, char const *file, struct stat *st, int flag);
-# if !COMPILING_FSTATAT
-# undef fstatat
-# define fstatat rpl_fstatat
-# endif
-#endif
-
-int mkdirat (int fd, char const *file, mode_t mode);
void openat_restore_fail (int) ATTRIBUTE_NORETURN;
void openat_save_fail (int) ATTRIBUTE_NORETURN;
-int fchmodat (int fd, char const *file, mode_t mode, int flag);
-int fchownat (int fd, char const *file, uid_t owner, gid_t group, int flag);
/* Using these function names makes application code
slightly more readable than it would be with
@@ -124,3 +80,35 @@ lchmodat (int fd, char const *file, mode_t mode)
{
return fchmodat (fd, file, mode, AT_SYMLINK_NOFOLLOW);
}
+
+static inline int
+statat (int fd, char const *name, struct stat *st)
+{
+ return fstatat (fd, name, st, 0);
+}
+
+static inline int
+lstatat (int fd, char const *name, struct stat *st)
+{
+ return fstatat (fd, name, st, AT_SYMLINK_NOFOLLOW);
+}
+
+#if GNULIB_FACCESSAT
+/* For now, there are no wrappers named laccessat or leuidaccessat,
+ since gnulib doesn't support faccessat(,AT_SYMLINK_NOFOLLOW) and
+ since access rights on symlinks are of limited utility. */
+
+static inline int
+accessat (int fd, char const *file, int mode)
+{
+ return faccessat (fd, file, mode, 0);
+}
+
+static inline int
+euidaccessat (int fd, char const *file, int mode)
+{
+ return faccessat (fd, file, mode, AT_EACCESS);
+}
+#endif
+
+#endif /* _GL_HEADER_OPENAT */
diff --git a/gnulib/lib/se-selinux.in.h b/gnulib/lib/se-selinux.in.h
new file mode 100644
index 0000000..3f30a3c
--- /dev/null
+++ b/gnulib/lib/se-selinux.in.h
@@ -0,0 +1,73 @@
+#ifndef _GL_SELINUX_SELINUX_H
+# define _GL_SELINUX_SELINUX_H
+
+# if __GNUC__ >= 3
+#pragma GCC system_header
+# endif
+
+# if HAVE_SELINUX_SELINUX_H
+
+#@INCLUDE_NEXT@ @NEXT_SELINUX_SELINUX_H@
+
+# else
+
+# include <sys/types.h>
+# include <errno.h>
+
+typedef unsigned short security_class_t;
+# define security_context_t char*
+# define is_selinux_enabled() 0
+
+static inline int getcon (security_context_t *con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline void freecon (security_context_t con _UNUSED_PARAMETER_) {}
+
+
+static inline int getfscreatecon (security_context_t *con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline int setfscreatecon (security_context_t con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline int matchpathcon (char const *file _UNUSED_PARAMETER_,
+ mode_t m _UNUSED_PARAMETER_,
+ security_context_t *con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline int getfilecon (char const *file _UNUSED_PARAMETER_,
+ security_context_t *con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline int lgetfilecon (char const *file _UNUSED_PARAMETER_,
+ security_context_t *con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline int fgetfilecon (int fd,
+ security_context_t *con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline int setfilecon (char const *file _UNUSED_PARAMETER_,
+ security_context_t con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline int lsetfilecon (char const *file _UNUSED_PARAMETER_,
+ security_context_t con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline int fsetfilecon (int fd _UNUSED_PARAMETER_,
+ security_context_t con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+
+static inline int security_check_context
+ (security_context_t con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline int security_check_context_raw
+ (security_context_t con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline int setexeccon (security_context_t con _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline int security_compute_create
+ (security_context_t scon _UNUSED_PARAMETER_,
+ security_context_t tcon _UNUSED_PARAMETER_,
+ security_class_t tclass _UNUSED_PARAMETER_,
+ security_context_t *newcon _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+static inline int matchpathcon_init_prefix
+ (char const *path _UNUSED_PARAMETER_,
+ char const *prefix _UNUSED_PARAMETER_)
+ { errno = ENOTSUP; return -1; }
+
+# endif
+#endif /* _GL_SELINUX_SELINUX_H */
diff --git a/gnulib/lib/selinux-at.c b/gnulib/lib/selinux-at.c
new file mode 100644
index 0000000..65f938b
--- /dev/null
+++ b/gnulib/lib/selinux-at.c
@@ -0,0 +1,72 @@
+/* openat-style fd-relative functions for SE Linux
+ Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* written by Jim Meyering */
+
+#include <config.h>
+
+#include "selinux-at.h"
+#include "openat.h"
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#include "dirname.h" /* solely for definition of IS_ABSOLUTE_FILE_NAME */
+#include "save-cwd.h"
+
+#include "openat-priv.h"
+
+#define AT_FUNC_NAME getfileconat
+#define AT_FUNC_F1 getfilecon
+#define AT_FUNC_POST_FILE_PARAM_DECLS , security_context_t *con
+#define AT_FUNC_POST_FILE_ARGS , con
+#include "at-func.c"
+#undef AT_FUNC_NAME
+#undef AT_FUNC_F1
+#undef AT_FUNC_POST_FILE_PARAM_DECLS
+#undef AT_FUNC_POST_FILE_ARGS
+
+#define AT_FUNC_NAME lgetfileconat
+#define AT_FUNC_F1 lgetfilecon
+#define AT_FUNC_POST_FILE_PARAM_DECLS , security_context_t *con
+#define AT_FUNC_POST_FILE_ARGS , con
+#include "at-func.c"
+#undef AT_FUNC_NAME
+#undef AT_FUNC_F1
+#undef AT_FUNC_POST_FILE_PARAM_DECLS
+#undef AT_FUNC_POST_FILE_ARGS
+
+#define AT_FUNC_NAME setfileconat
+#define AT_FUNC_F1 setfilecon
+#define AT_FUNC_POST_FILE_PARAM_DECLS , security_context_t con
+#define AT_FUNC_POST_FILE_ARGS , con
+#include "at-func.c"
+#undef AT_FUNC_NAME
+#undef AT_FUNC_F1
+#undef AT_FUNC_POST_FILE_PARAM_DECLS
+#undef AT_FUNC_POST_FILE_ARGS
+
+#define AT_FUNC_NAME lsetfileconat
+#define AT_FUNC_F1 lsetfilecon
+#define AT_FUNC_POST_FILE_PARAM_DECLS , security_context_t con
+#define AT_FUNC_POST_FILE_ARGS , con
+#include "at-func.c"
+#undef AT_FUNC_NAME
+#undef AT_FUNC_F1
+#undef AT_FUNC_POST_FILE_PARAM_DECLS
+#undef AT_FUNC_POST_FILE_ARGS
diff --git a/gnulib/lib/selinux-at.h b/gnulib/lib/selinux-at.h
new file mode 100644
index 0000000..1d84c19
--- /dev/null
+++ b/gnulib/lib/selinux-at.h
@@ -0,0 +1,52 @@
+/* Prototypes for openat-style fd-relative SELinux functions
+ Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <selinux/selinux.h>
+#include <selinux/context.h>
+
+/* These are the dir-fd-relative variants of the functions without the
+ "at" suffix. For example, getfileconat (AT_FDCWD, file, &c) is usually
+ equivalent to getfilecon (file, &c). The emulation is accomplished
+ by first attempting getfilecon ("/proc/self/fd/DIR_FD/FILE", &c).
+ Failing that, simulate it via save_cwd/fchdir/getfilecon/restore_cwd.
+ If either the save_cwd or the restore_cwd fails (relatively unlikely),
+ then give a diagnostic and exit nonzero. */
+
+/* dir-fd-relative getfilecon. Set *CON to the SELinux security context
+ of the file specified by DIR_FD and FILE and return the length of *CON.
+ DIR_FD and FILE are interpreted as for fstatat[*]. A non-NULL *CON
+ must be freed with freecon. Upon error, set *CON to NULL, set errno
+ and return -1.
+ [*] with flags=0 here, with flags=AT_SYMLINK_NOFOLLOW for lgetfileconat */
+int getfileconat (int dir_fd, char const *file, security_context_t *con);
+
+/* dir-fd-relative lgetfilecon. This function is just like getfileconat,
+ except when DIR_FD and FILE specify a symlink: lgetfileconat operates on
+ the symlink, while getfileconat operates on the referent of the symlink. */
+int lgetfileconat (int dir_fd, char const *file, security_context_t *con);
+
+/* dir-fd-relative setfilecon. Set the SELinux security context of
+ the file specified by DIR_FD and FILE to CON. DIR_FD and FILE are
+ interpreted as for fstatat[*]. Upon success, return 0.
+ Otherwise, return -1 and set errno. */
+int setfileconat (int dir_fd, char const *file, security_context_t con);
+
+/* dir-fd-relative lsetfilecon. This function is just like setfileconat,
+ except that rather than dereferencing a symlink, this function affects it. */
+/* dir-fd-relative lsetfilecon. This function is just like setfileconat,
+ except when DIR_FD and FILE specify a symlink: lsetfileconat operates on
+ the symlink, while setfileconat operates on the referent of the symlink. */
+int lsetfileconat (int dir_fd, char const *file, security_context_t con);
diff --git a/gnulib/m4/gnulib-comp.m4 b/gnulib/m4/gnulib-comp.m4
index 1efe223..87f11dd 100644
--- a/gnulib/m4/gnulib-comp.m4
+++ b/gnulib/m4/gnulib-comp.m4
@@ -165,6 +165,11 @@ AC_DEFUN([gl_INIT],
gl_SAME
gl_SAVE_CWD
gl_SAVEDIR
+ AC_CHECK_HEADERS([selinux/flask.h])
+ AC_LIBOBJ([selinux-at])
+ gl_HEADERS_SELINUX_SELINUX_H
+ gl_HEADERS_SELINUX_CONTEXT_H
+ AC_REQUIRE([AC_C_INLINE])
gl_FUNC_SETENV
gl_FUNC_UNSETENV
gt_TYPE_SSIZE_T
@@ -425,6 +430,7 @@ AC_DEFUN([gl_FILE_LIST], [
lib/getdate.h
lib/getdate.y
lib/getdelim.c
+ lib/getfilecon.c
lib/getline.c
lib/getopt.c
lib/getopt.in.h
@@ -506,6 +512,10 @@ AC_DEFUN([gl_FILE_LIST], [
lib/save-cwd.h
lib/savedir.c
lib/savedir.h
+ lib/se-context.in.h
+ lib/se-selinux.in.h
+ lib/selinux-at.c
+ lib/selinux-at.h
lib/setenv.c
lib/setenv.h
lib/stat-macros.h
@@ -688,6 +698,8 @@ AC_DEFUN([gl_FILE_LIST], [
m4/same.m4
m4/save-cwd.m4
m4/savedir.m4
+ m4/selinux-context-h.m4
+ m4/selinux-selinux-h.m4
m4/setenv.m4
m4/size_max.m4
m4/ssize_t.m4
diff --git a/gnulib/m4/selinux-context-h.m4 b/gnulib/m4/selinux-context-h.m4
new file mode 100644
index 0000000..6b0bed1
--- /dev/null
+++ b/gnulib/m4/selinux-context-h.m4
@@ -0,0 +1,16 @@
+# serial 1 -*- Autoconf -*-
+# Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# From Jim Meyering
+# Provide <selinux/context.h>, if necessary.
+
+AC_DEFUN([gl_HEADERS_SELINUX_CONTEXT_H],
+[
+ AC_CHECK_HEADERS([selinux/context.h],
+ [SELINUX_CONTEXT_H=],
+ [SELINUX_CONTEXT_H=selinux/context.h])
+ AC_SUBST([SELINUX_CONTEXT_H])
+])
diff --git a/gnulib/m4/selinux-selinux-h.m4 b/gnulib/m4/selinux-selinux-h.m4
new file mode 100644
index 0000000..767c4f7
--- /dev/null
+++ b/gnulib/m4/selinux-selinux-h.m4
@@ -0,0 +1,57 @@
+# serial 3 -*- Autoconf -*-
+# Copyright (C) 2006, 2007, 2009 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# From Jim Meyering
+# Provide <selinux/selinux.h>, if necessary.
+# If it is already present, provide wrapper functions to guard against
+# misbehavior from getfilecon, lgetfilecon, and fgetfilecon.
+
+AC_DEFUN([gl_HEADERS_SELINUX_SELINUX_H],
+[
+ AC_REQUIRE([gl_LIBSELINUX])
+ AC_CHECK_HEADERS([selinux/selinux.h])
+
+ if test "$ac_cv_header_selinux_selinux_h" = yes; then
+ # We do have <selinux/selinux.h>, so do compile getfilecon.c
+ # and arrange to use its wrappers.
+ AC_LIBOBJ([getfilecon])
+ gl_CHECK_NEXT_HEADERS([selinux/selinux.h])
+ AC_DEFINE([getfilecon], [rpl_getfilecon],
+ [Always use our getfilecon wrapper.])
+ AC_DEFINE([lgetfilecon], [rpl_lgetfilecon],
+ [Always use our lgetfilecon wrapper.])
+ AC_DEFINE([fgetfilecon], [rpl_fgetfilecon],
+ [Always use our fgetfilecon wrapper.])
+ fi
+
+ case "$ac_cv_search_setfilecon:$ac_cv_header_selinux_selinux_h" in
+ no:*) # already warned
+ ;;
+ *:no)
+ AC_MSG_WARN([libselinux was found but selinux/selinux.h is missing.])
+ AC_MSG_WARN([AC_PACKAGE_NAME will be compiled without SELinux support.])
+ esac
+])
+
+AC_DEFUN([gl_LIBSELINUX],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_REQUIRE([AC_CANONICAL_BUILD])
+ LIB_SELINUX=
+ gl_save_LIBS=$LIBS
+ AC_SEARCH_LIBS([setfilecon], [selinux],
+ [test "$ac_cv_search_setfilecon" = "none required" ||
+ LIB_SELINUX=$ac_cv_search_setfilecon])
+ AC_SUBST([LIB_SELINUX])
+ LIBS=$gl_save_LIBS
+
+ # Warn if SELinux is found but libselinux is absent;
+ if test "$ac_cv_search_setfilecon" = no &&
+ test "$host" = "$build" && test -d /selinux; then
+ AC_MSG_WARN([This system supports SELinux but libselinux is missing.])
+ AC_MSG_WARN([AC_PACKAGE_NAME will be compiled without SELinux support.])
+ fi
+])
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