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* sysdeps/unix/sysv/linux/setegid.c [HAVE_PTR__NPTL_SETXID]: Call
	callback to set IDs in all other threads as well.
	* sysdeps/unix/sysv/linux/seteuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setegid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/seteuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setgid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setreuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setreuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setresuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setresuid.c: Likewise.
	* sysdeps/unix/sysv/linux/setuid.c: New file.
	* sysdeps/unix/sysv/linux/setgid.c: New file.
	* sysdeps/unix/sysv/linux/setreuid.c: New file.
	* sysdeps/unix/sysv/linux/setregid.c: New file.
	* sysdeps/unix/sysv/linux/setresuid.c: New file.
	* sysdeps/unix/sysv/linux/setresgid.c: New file.
	* sysdeps/unix/sysv/linux/i386/sysdep.h: Define INTERNAL_SYSCALL_NCS.
	* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setegid.c: Use x86 version.
	* sysdeps/unix/sysv/linux/sparc/sparc32/seteuid.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setresgid.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setresuid.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list: Remove setresgid
	and setresuid.
	* nscd/aicache.c: Use pthread_seteuid_np instead of seteuid.
	* nscd/grpcache.c: Likewise.
	* nscd/hstcache.c: Likewise.
	* nscd/pwdcache.c: Likewise.
This commit is contained in:
Ulrich Drepper 2004-09-20 00:16:11 +00:00
parent 29e11320c9
commit 2edb61e3f9
62 changed files with 1254 additions and 235 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
ChangeLog
View File

@ -1,5 +1,38 @@
2004-09-19 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/setegid.c [HAVE_PTR__NPTL_SETXID]: Call
callback to set IDs in all other threads as well.
* sysdeps/unix/sysv/linux/seteuid.c: Likewise.
* sysdeps/unix/sysv/linux/i386/setegid.c: Likewise.
* sysdeps/unix/sysv/linux/i386/seteuid.c: Likewise.
* sysdeps/unix/sysv/linux/i386/setgid.c: Likewise.
* sysdeps/unix/sysv/linux/i386/setuid.c: Likewise.
* sysdeps/unix/sysv/linux/i386/setreuid.c: Likewise.
* sysdeps/unix/sysv/linux/i386/setreuid.c: Likewise.
* sysdeps/unix/sysv/linux/i386/setresuid.c: Likewise.
* sysdeps/unix/sysv/linux/i386/setresuid.c: Likewise.
* sysdeps/unix/sysv/linux/setuid.c: New file.
* sysdeps/unix/sysv/linux/setgid.c: New file.
* sysdeps/unix/sysv/linux/setreuid.c: New file.
* sysdeps/unix/sysv/linux/setregid.c: New file.
* sysdeps/unix/sysv/linux/setresuid.c: New file.
* sysdeps/unix/sysv/linux/setresgid.c: New file.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Define INTERNAL_SYSCALL_NCS.
* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/setegid.c: Use x86 version.
* sysdeps/unix/sysv/linux/sparc/sparc32/seteuid.c: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/setresgid.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc32/setresuid.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list: Remove setresgid
and setresuid.
* nscd/aicache.c: Use pthread_seteuid_np instead of seteuid.
* nscd/grpcache.c: Likewise.
* nscd/hstcache.c: Likewise.
* nscd/pwdcache.c: Likewise.
* resolv/res_mkquery.c (res_nmkquery): Fix typo.
2004-09-18 Ulrich Drepper <drepper@redhat.com>

22
linuxthreads/ChangeLog
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@ -1,3 +1,25 @@
2004-09-19 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h: Declare pthread_setgid_np,
pthread_setuid_np, pthread_setegid_np, pthread_seteuid_np,
pthread_setregid_np, pthread_setreuid_np, pthread_setresgid_np,
and pthread_setresuid_np.
* pthread_setgid_np.c: New file.
* pthread_setuid_np.c: New file.
* pthread_setegid_np.c: New file.
* pthread_seteuid_np.c: New file.
* pthread_setregid_np.c: New file.
* pthread_setreuid_np.c: New file.
* pthread_setresgid_np.c: New file.
* pthread_setresuid_np.c: New file.
* Versions [libpthread, GLIBC_2.3.4]: Add pthread_setgid_np,
pthread_setuid_np, pthread_setegid_np, pthread_seteuid_np,
pthread_setregid_np, pthread_setreuid_np, pthread_setresgid_np,
and pthread_setresuid_np.
* Makefile (libpthread-routines): Add pthread_setuid, pthread_seteuid,
pthread_setreuid, pthread_setresuid, pthread_setgid, pthread_setegid,
pthread_setregid, and pthread_setresgid.
2004-09-12 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h: Make rwlock prototypes available also

6
linuxthreads/Makefile
View File

@ -51,7 +51,11 @@ libpthread-routines := attr cancel condvar join manager mutex ptfork \
ptw-open ptw-open64 ptw-pause ptw-pread ptw-pread64 \
ptw-pwrite ptw-pwrite64 ptw-tcdrain ptw-wait \
ptw-waitpid pt-system old_pthread_atfork pthread_atfork \
ptcleanup
ptcleanup \
pthread_setuid pthread_seteuid pthread_setreuid \
pthread_setresuid \
pthread_setgid pthread_setegid pthread_setregid \
pthread_setresgid
# Don't generate deps for calls with no sources. See sysdeps/unix/Makefile.
omit-deps = $(unix-syscalls:%=ptw-%)

6
linuxthreads/Versions
View File

@ -172,6 +172,12 @@ libpthread {
pthread_cond_wait; pthread_cond_timedwait;
pthread_cond_signal; pthread_cond_broadcast;
}
GLIBC_2.3.4 {
pthread_setuid_np; pthread_seteuid_np; pthread_setreuid_np;
pthread_setresuid_np;
pthread_setgid_np; pthread_setegid_np; pthread_setregid_np;
pthread_setresgid_np;
}
GLIBC_PRIVATE {
# Internal libc interface to libpthread
__pthread_initialize;

27
linuxthreads/pthread_setegid.c Normal file
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@ -0,0 +1,27 @@
/* Copyright (C) 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <pthread.h>
#include <unistd.h>
int
pthread_setegid_np (gid_t gid)
{
return setegid (gid);
}

27
linuxthreads/pthread_seteuid.c Normal file
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@ -0,0 +1,27 @@
/* Copyright (C) 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <pthread.h>
#include <unistd.h>
int
pthread_seteuid_np (uid_t uid)
{
return seteuid (uid);
}

27
linuxthreads/pthread_setgid.c Normal file
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@ -0,0 +1,27 @@
/* Copyright (C) 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <pthread.h>
#include <unistd.h>
int
pthread_setgid_np (gid_t gid)
{
return setgid (gid);
}

27
linuxthreads/pthread_setregid.c Normal file
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@ -0,0 +1,27 @@
/* Copyright (C) 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <pthread.h>
#include <unistd.h>
int
pthread_setregid_np (gid_t rgid, gid_t egid)
{
return setregid (rgid, egid);
}

27
linuxthreads/pthread_setresgid.c Normal file
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@ -0,0 +1,27 @@
/* Copyright (C) 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <pthread.h>
#include <unistd.h>
int
pthread_setresgid_np (gid_t rgid, gid_t egid, gid_t sgid)
{
return setresgid (rgid, egid, sgid);
}

27
linuxthreads/pthread_setresuid.c Normal file
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@ -0,0 +1,27 @@
/* Copyright (C) 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <pthread.h>
#include <unistd.h>
int
pthread_setresuid_np (uid_t ruid, uid_t euid, uid_t suid)
{
return setresuid (ruid, euid, suid);
}

27
linuxthreads/pthread_setreuid.c Normal file
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@ -0,0 +1,27 @@
/* Copyright (C) 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <pthread.h>
#include <unistd.h>
int
pthread_setreuid_np (uid_t ruid, uid_t euid)
{
return setreuid (ruid, euid);
}

27
linuxthreads/pthread_setuid.c Normal file
View File

@ -0,0 +1,27 @@
/* Copyright (C) 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <pthread.h>
#include <unistd.h>
int
pthread_setuid_np (uid_t uid)
{
return setuid (uid);
}

30
linuxthreads/sysdeps/pthread/pthread.h
View File

@ -681,6 +681,36 @@ extern int pthread_atfork (void (*__prepare) (void),
extern void pthread_kill_other_threads_np (void) __THROW;
#ifdef __USE_GNU
/* Change UID of calling thread. */
extern int pthread_setuid_np (__uid_t __uid) __THROW;
/* Change effective UID of calling thread. */
extern int pthread_seteuid_np (__uid_t __uid) __THROW;
/* Change real and effective UID of calling thread. */
extern int pthread_setreuid_np (__uid_t __ruid, __uid_t __euid) __THROW;
/* Change real, effective, and saved UID of calling thread. */
extern int pthread_setresuid_np (__uid_t __ruid, __uid_t __euid,
__uid_t __suid) __THROW;
/* Change GID of calling thread. */
extern int pthread_setgid_np (__gid_t __gid) __THROW;
/* Change effective GID of calling thread. */
extern int pthread_setegid_np (__gid_t __gid) __THROW;
/* Change real and effective GID of calling thread. */
extern int pthread_setregid_np (__gid_t __rgid, __gid_t __egid) __THROW;
/* Change real, effective, and saved GID of calling thread. */
extern int pthread_setresgid_np (__gid_t __rgid, __gid_t __egid,
__gid_t __sgid) __THROW;
#endif
__END_DECLS
#endif /* pthread.h */

34
nptl/ChangeLog
View File

@ -1,3 +1,37 @@
2004-09-19 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/allocrtsig.c: Allocate second signal for
internal use.
* allocatestack.c (__nptl_setxid): New function.
* descr.h (struct xid_command): Define type.
* init.c (pthread_functions): Add ptr__nptl_setxid initialization.
(sighandler_setxid): New function.
(__pthread_initialize_minimal): Register sighandler_setxid for
SIGCANCEL.
* pt-allocrtsig.c: Update comment.
* pthreadP.h: Define SIGSETXID. Declare __xidcmd variable.
Declare __nptl_setxid.
* sysdeps/pthread/pthread-functions.h: Add ptr__nptl_setxid.
* sysdeps/pthread/pthread.h: Declare pthread_setgid_np,
pthread_setuid_np, pthread_setegid_np, pthread_seteuid_np,
pthread_setregid_np, pthread_setreuid_np, pthread_setresgid_np,
and pthread_setresuid_np.
* pthread_setgid_np.c: New file.
* pthread_setuid_np.c: New file.
* pthread_setegid_np.c: New file.
* pthread_seteuid_np.c: New file.
* pthread_setregid_np.c: New file.
* pthread_setreuid_np.c: New file.
* pthread_setresgid_np.c: New file.
* pthread_setresuid_np.c: New file.
* Versions [libpthread, GLIBC_2.3.4]: Add pthread_setgid_np,
pthread_setuid_np, pthread_setegid_np, pthread_seteuid_np,
pthread_setregid_np, pthread_setreuid_np, pthread_setresgid_np,
and pthread_setresuid_np.
* Makefile (libpthread-routines): Add pthread_setuid, pthread_seteuid,
pthread_setreuid, pthread_setresuid, pthread_setgid, pthread_setegid,
pthread_setregid, and pthread_setresgid.
2004-09-18 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): Return EAGAIN instead of

6
nptl/Makefile
View File

@ -115,7 +115,11 @@ libpthread-routines = init events version \
pthread_kill_other_threads \
pthread_getaffinity pthread_setaffinity \
pthread_attr_getaffinity pthread_attr_setaffinity \
cleanup_routine unwind-forcedunwind
cleanup_routine unwind-forcedunwind \
pthread_setuid pthread_seteuid pthread_setreuid \
pthread_setresuid \
pthread_setgid pthread_setegid pthread_setregid \
pthread_setresgid
libpthread-shared-only-routines = version pt-allocrtsig unwind-forcedunwind
libpthread-static-only-routines = pthread_atfork

5
nptl/Versions
View File

@ -228,6 +228,11 @@ libpthread {
# New affinity interfaces.
pthread_getaffinity_np; pthread_setaffinity_np;
pthread_attr_getaffinity_np; pthread_attr_setaffinity_np;
pthread_setuid_np; pthread_seteuid_np; pthread_setreuid_np;
pthread_setresuid_np;
pthread_setgid_np; pthread_setegid_np; pthread_setregid_np;
pthread_setresgid_np;
}
GLIBC_PRIVATE {

81
nptl/allocatestack.c
View File

@ -19,6 +19,7 @@
#include <assert.h>
#include <errno.h>
#include <signal.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
@ -26,7 +27,7 @@
#include <sys/param.h>
#include <dl-sysdep.h>
#include <tls.h>
#include <lowlevellock.h>
#ifndef NEED_SEPARATE_REGISTER_STACK
@ -815,6 +816,84 @@ __find_thread_by_id (pid_t tid)
}
#endif
void
attribute_hidden
__nptl_setxid (struct xid_command *cmdp)
{
lll_lock (stack_cache_lock);
__xidcmd = cmdp;
cmdp->cntr = 0;
INTERNAL_SYSCALL_DECL (err);
struct pthread *self = THREAD_SELF;
/* Iterate over the list with system-allocated threads first. */
list_t *runp;
list_for_each (runp, &stack_used)
{
struct pthread *t = list_entry (runp, struct pthread, list);
if (t != self)
{
int val;
#if __ASSUME_TGKILL
val = INTERNAL_SYSCALL (tgkill, err, 3,
THREAD_GETMEM (THREAD_SELF, pid),
t->tid, SIGSETXID);
#else
# ifdef __NR_tgkill
val = INTERNAL_SYSCALL (tgkill, err, 3,
THREAD_GETMEM (THREAD_SELF, pid),
t->tid, SIGSETXID);
if (INTERNAL_SYSCALL_ERROR_P (val, err)
&& INTERNAL_SYSCALL_ERRNO (val, err) == ENOSYS)
# endif
val = INTERNAL_SYSCALL (tkill, err, 2, t->tid, SIGSETXID);
#endif
if (!INTERNAL_SYSCALL_ERROR_P (val, err))
atomic_increment (&cmdp->cntr);
}
}
/* Now the list with threads using user-allocated stacks. */
list_for_each (runp, &__stack_user)
{
struct pthread *t = list_entry (runp, struct pthread, list);
if (t != self)
{
int val;
#if __ASSUME_TGKILL
val = INTERNAL_SYSCALL (tgkill, err, 3,
THREAD_GETMEM (THREAD_SELF, pid),
t->tid, SIGSETXID);
#else
# ifdef __NR_tgkill
val = INTERNAL_SYSCALL (tgkill, err, 3,
THREAD_GETMEM (THREAD_SELF, pid),
t->tid, SIGSETXID);
if (INTERNAL_SYSCALL_ERROR_P (val, err)
&& INTERNAL_SYSCALL_ERRNO (val, err) == ENOSYS)
# endif
val = INTERNAL_SYSCALL (tkill, err, 2, t->tid, SIGSETXID);
#endif
if (!INTERNAL_SYSCALL_ERROR_P (val, err))
atomic_increment (&cmdp->cntr);
}
}
int cur = cmdp->cntr;
while (cur != 0)
{
lll_futex_wait (&cmdp->cntr, cur);
cur = cmdp->cntr;
}
lll_unlock (stack_cache_lock);
}
static inline void __attribute__((always_inline))
init_one_static_tls (struct pthread *curp, struct link_map *map)
{

10
nptl/descr.h
View File

@ -92,6 +92,16 @@ struct pthread_unwind_buf
};
/* Opcodes and data types for communication with the signal handler to
change user/group IDs. */
struct xid_command
{
int syscall_no;
id_t id[3];
volatile int cntr;
};
/* Thread descriptor data structure. */
struct pthread
{

40
nptl/init.c
View File

@ -32,6 +32,7 @@
#include <version.h>
#include <shlib-compat.h>
#include <smp.h>
#include <lowlevellock.h>
#ifndef __NR_set_tid_address
@ -131,7 +132,8 @@ static const struct pthread_functions pthread_functions =
.ptr__pthread_cleanup_pop_restore = __pthread_cleanup_pop_restore,
.ptr_nthreads = &__nptl_nthreads,
.ptr___pthread_unwind = &__pthread_unwind,
.ptr__nptl_deallocate_tsd = __nptl_deallocate_tsd
.ptr__nptl_deallocate_tsd = __nptl_deallocate_tsd,
.ptr__nptl_setxid = __nptl_setxid
};
# define ptr_pthread_functions &pthread_functions
#else
@ -144,7 +146,7 @@ static void
sigcancel_handler (int sig, siginfo_t *si, void *ctx)
{
/* Safety check. It would be possible to call this function for
other signals and send a signal from another thread. This is not
other signals and send a signal from another process. This is not
correct and might even be a security problem. Try to catch as
many incorrect invocations as possible. */
if (sig != SIGCANCEL
@ -190,6 +192,34 @@ sigcancel_handler (int sig, siginfo_t *si, void *ctx)
}
struct xid_command *__xidcmd attribute_hidden;
/* For asynchronous cancellation we use a signal. This is the handler. */
static void
sighandler_setxid (int sig, siginfo_t *si, void *ctx)
{
/* Safety check. It would be possible to call this function for
other signals and send a signal from another process. This is not
correct and might even be a security problem. Try to catch as
many incorrect invocations as possible. */
if (sig != SIGSETXID
#ifdef __ASSUME_CORRECT_SI_PID
/* Kernels before 2.5.75 stored the thread ID and not the process
ID in si_pid so we skip this test. */
|| si->si_pid != THREAD_GETMEM (THREAD_SELF, pid)
#endif
|| si->si_code != SI_TKILL)
return;
INTERNAL_SYSCALL_DECL (err);
INTERNAL_SYSCALL_NCS (__xidcmd->syscall_no, err, 3, __xidcmd->id[0],
__xidcmd->id[1], __xidcmd->id[2]);
if (atomic_decrement_val (&__xidcmd->cntr) == 0)
lll_futex_wake (&__xidcmd->cntr, 1);
}
/* When using __thread for this, we do it in libc so as not
to give libpthread its own TLS segment just for this. */
extern void **__libc_dl_error_tsd (void) __attribute__ ((const));
@ -242,6 +272,12 @@ __pthread_initialize_minimal_internal (void)
(void) __libc_sigaction (SIGCANCEL, &sa, NULL);
/* Install the handle to change the threads' uid/gid. */
sa.sa_sigaction = sighandler_setxid;
sa.sa_flags = SA_SIGINFO | SA_RESTART;
(void) __libc_sigaction (SIGSETXID, &sa, NULL);
/* The parent process might have left the signal blocked. Just in
case, unblock it. We reuse the signal mask in the sigaction
structure. It is already cleared. */

7
nptl/pt-allocrtsig.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2002 Free Software Foundation, Inc.
/* Copyright (C) 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@ -27,8 +27,9 @@ extern int __libc_current_sigrtmax_private (void);
extern int __libc_allocate_rtsig_private (int high);
/* We reserve __SIGRTMIN for use as the cancelation signal. This
signal is used internally. */
/* We reserve __SIGRTMIN for use as the cancellation signal and
__SIGRTMIN+1 to andle setuid et.al. These signals are used
internally. */
int
__libc_current_sigrtmin (void)
{

9
nptl/pthreadP.h
View File

@ -206,6 +206,13 @@ __do_cancel (void)
#define SIGTIMER SIGCANCEL
/* Signal used to implement the setuid et.al. functions. */
#define SIGSETXID (__SIGRTMIN + 1)
/* Used to communicate with signal handler. */
extern struct xid_command *__xidcmd attribute_hidden;
/* Internal prototypes. */
/* Thread list handling. */
@ -441,4 +448,6 @@ extern void _pthread_cleanup_pop_restore (struct _pthread_cleanup_buffer *buffer
extern void __nptl_deallocate_tsd (void) attribute_hidden;
extern void __nptl_setxid (struct xid_command *cmdp) attribute_hidden;
#endif /* pthreadP.h */

3
nptl/pthread_setegid.c Normal file
View File

@ -0,0 +1,3 @@
#define SINGLE_THREAD
#define setegid pthread_setegid_np
#include <setegid.c>

3
nptl/pthread_seteuid.c Normal file
View File

@ -0,0 +1,3 @@
#define SINGLE_THREAD
#define seteuid pthread_seteuid_np
#include <seteuid.c>

3
nptl/pthread_setgid.c Normal file
View File

@ -0,0 +1,3 @@
#define SINGLE_THREAD
#define __setgid pthread_setgid_np
#include <setgid.c>

3
nptl/pthread_setregid.c Normal file
View File

@ -0,0 +1,3 @@
#define SINGLE_THREAD
#define __setregid pthread_setregid_np
#include <setregid.c>

3
nptl/pthread_setresgid.c Normal file
View File

@ -0,0 +1,3 @@
#define SINGLE_THREAD
#define __setresgid pthread_setresgid_np
#include <setresgid.c>

3
nptl/pthread_setresuid.c Normal file
View File

@ -0,0 +1,3 @@
#define SINGLE_THREAD
#define __setresuid pthread_setresuid_np
#include <setresuid.c>

3
nptl/pthread_setreuid.c Normal file
View File

@ -0,0 +1,3 @@
#define SINGLE_THREAD
#define __setreuid pthread_setreuid_np
#include <setreuid.c>

3
nptl/pthread_setuid.c Normal file
View File

@ -0,0 +1,3 @@
#define SINGLE_THREAD
#define __setuid pthread_setuid_np
#include <setuid.c>

2
nptl/sysdeps/pthread/pthread-functions.h
View File

@ -93,6 +93,8 @@ struct pthread_functions
void (*ptr___pthread_unwind) (__pthread_unwind_buf_t *)
__attribute ((noreturn)) __cleanup_fct_attribute;
void (*ptr__nptl_deallocate_tsd) (void);
#define HAVE_PTR__NPTL_SETXID
void (*ptr__nptl_setxid) (struct xid_command *);
};
/* Variable in libc.so. */

30
nptl/sysdeps/pthread/pthread.h
View File

@ -953,6 +953,36 @@ extern int pthread_atfork (void (*__prepare) (void),
void (*__parent) (void),
void (*__child) (void)) __THROW;
#ifdef __USE_GNU
/* Change UID of calling thread. */
extern int pthread_setuid_np (__uid_t __uid) __THROW;
/* Change effective UID of calling thread. */
extern int pthread_seteuid_np (__uid_t __uid) __THROW;
/* Change real and effective UID of calling thread. */
extern int pthread_setreuid_np (__uid_t __ruid, __uid_t __euid) __THROW;
/* Change real, effective, and saved UID of calling thread. */
extern int pthread_setresuid_np (__uid_t __ruid, __uid_t __euid,
__uid_t __suid) __THROW;
/* Change GID of calling thread. */
extern int pthread_setgid_np (__gid_t __gid) __THROW;
/* Change effective GID of calling thread. */
extern int pthread_setegid_np (__gid_t __gid) __THROW;
/* Change real and effective GID of calling thread. */
extern int pthread_setregid_np (__gid_t __rgid, __gid_t __egid) __THROW;
/* Change real, effective, and saved GID of calling thread. */
extern int pthread_setresgid_np (__gid_t __rgid, __gid_t __egid,
__gid_t __sgid) __THROW;
#endif
__END_DECLS
#endif /* pthread.h */

4
nptl/sysdeps/unix/sysv/linux/allocrtsig.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@ -20,7 +20,7 @@
#include <signal.h>
static int current_rtmin = __SIGRTMIN + 1;
static int current_rtmin = __SIGRTMIN + 2;
static int current_rtmax = __SIGRTMAX;

4
nscd/aicache.c
View File

@ -80,7 +80,7 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
if (db->secure)
{
oldeuid = geteuid ();
seteuid (uid);
pthread_seteuid_np (uid);
}
static service_user *hosts_database;
@ -426,7 +426,7 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
_res.options = old_res_options;
if (db->secure)
seteuid (oldeuid);
pthread_seteuid_np (oldeuid);
if (dataset != NULL && !alloca_used)
{

4
nscd/grpcache.c
View File

@ -419,7 +419,7 @@ addgrbyX (struct database_dyn *db, int fd, request_header *req,
if (db->secure)
{
oldeuid = geteuid ();
seteuid (uid);
pthread_seteuid_np (uid);
}
while (lookup (req->type, key, &resultbuf, buffer, buflen, &grp) != 0
@ -456,7 +456,7 @@ addgrbyX (struct database_dyn *db, int fd, request_header *req,
}
if (db->secure)
seteuid (oldeuid);
pthread_seteuid_np (oldeuid);
cache_addgr (db, fd, req, keystr, grp, uid, he, dh, errval);

4
nscd/hstcache.c
View File

@ -442,7 +442,7 @@ addhstbyX (struct database_dyn *db, int fd, request_header *req,
if (db->secure)
{
oldeuid = geteuid ();
seteuid (uid);
pthread_seteuid_np (uid);
}
while (lookup (req->type, key, &resultbuf, buffer, buflen, &hst) != 0
@ -480,7 +480,7 @@ addhstbyX (struct database_dyn *db, int fd, request_header *req,
}
if (db->secure)
seteuid (oldeuid);
pthread_seteuid_np (oldeuid);
cache_addhst (db, fd, req, key, hst, uid, he, dh,
h_errno == TRY_AGAIN ? errval : 0);

4
nscd/pwdcache.c
View File

@ -415,7 +415,7 @@ addpwbyX (struct database_dyn *db, int fd, request_header *req,
if (db->secure)
{
oldeuid = geteuid ();
seteuid (c_uid);
pthread_seteuid_np (c_uid);
}
while (lookup (req->type, key, &resultbuf, buffer, buflen, &pwd) != 0
@ -452,7 +452,7 @@ addpwbyX (struct database_dyn *db, int fd, request_header *req,
}
if (db->secure)
seteuid (oldeuid);
pthread_seteuid_np (oldeuid);
/* Add the entry to the cache. */
cache_addpw (db, fd, req, keystr, pwd, c_uid, he, dh, errval);

30
sysdeps/unix/sysv/linux/i386/setegid.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1995-1998, 2000, 2002, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1995-1998,2000,2002,2003,2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -22,6 +22,7 @@
#include <sysdep.h>
#include "kernel-features.h"
#include <pthread-functions.h>
#ifdef __NR_setresgid
@ -32,10 +33,17 @@ int
setegid (gid)
gid_t gid;
{
#if __ASSUME_32BITUIDS > 0
return INLINE_SYSCALL (setresgid32, 3, -1, gid, -1);
#else
int result;
if (gid == (gid_t) ~0)
{
__set_errno (EINVAL);
return -1;
}
#if __ASSUME_32BITUIDS > 0
result = INLINE_SYSCALL (setresgid32, 3, -1, gid, -1);
#else
/* First try the syscall. */
# ifdef __NR_setresgid
result = __setresgid (-1, gid, -1);
@ -49,8 +57,20 @@ setegid (gid)
equal to the real user ID, making it impossible to switch back. */
# endif
result = __setregid (-1, gid);
#endif
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setresgid32;
cmd.id[0] = -1;
cmd.id[1] = gid;
cmd.id[2] = -1;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
#endif
}
libc_hidden_def (setegid)

30
sysdeps/unix/sysv/linux/i386/seteuid.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1998, 2000, 2002, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1998, 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -22,6 +22,7 @@
#include <sysdep.h>
#include "kernel-features.h"
#include <pthread-functions.h>
#ifdef __NR_setresuid
@ -31,10 +32,17 @@ extern int __setresuid (uid_t ruid, uid_t euid, uid_t suid);
int
seteuid (uid_t uid)
{
#if __ASSUME_32BITUIDS > 0
return INLINE_SYSCALL (setresuid32, 3, -1, uid, -1);
#else
int result;
if (uid == (uid_t) ~0)
{
__set_errno (EINVAL);
return -1;
}
#if __ASSUME_32BITUIDS > 0
result = INLINE_SYSCALL (setresuid32, 3, -1, uid, -1);
#else
/* First try the syscall. */
# ifdef __NR_setresuid
result = __setresuid (-1, uid, -1);
@ -48,8 +56,20 @@ seteuid (uid_t uid)
equal to the real user ID, making it impossible to switch back. */
# endif
result = __setreuid (-1, uid);
#endif
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setresuid32;
cmd.id[0] = -1;
cmd.id[1] = uid;
cmd.id[2] = -1;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
#endif
}
libc_hidden_def (seteuid)

33
sysdeps/unix/sysv/linux/i386/setgid.c
View File

@ -1,4 +1,5 @@
/* Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1998, 2000, 2003, 2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -26,6 +27,8 @@
#include <linux/posix_types.h>
#include "kernel-features.h"
#include <pthread-functions.h>
#ifdef __NR_setgid32
# if __ASSUME_32BITUIDS == 0
@ -38,18 +41,21 @@ extern int __libc_missing_32bit_uids;
int
__setgid (gid_t gid)
{
int result;
#if __ASSUME_32BITUIDS > 0
return INLINE_SYSCALL (setgid32, 1, gid);
result = INLINE_SYSCALL (setgid32, 1, gid);
#else
# ifdef __NR_setgid32
if (__libc_missing_32bit_uids <= 0)
{
int result;
int saved_errno = errno;
result = INLINE_SYSCALL (setgid32, 1, gid);
if (result == 0 || errno != ENOSYS)
if (result == 0)
goto out;
if (errno != ENOSYS)
return result;
__set_errno (saved_errno);
@ -64,7 +70,24 @@ __setgid (gid_t gid)
return -1;
}
return INLINE_SYSCALL (setgid, 1, gid);
result = INLINE_SYSCALL (setgid, 1, gid);
# ifdef __NR_setgid32
out:
# endif
#endif
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setgid32;
cmd.id[0] = gid;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
#ifndef __setgid
weak_alias (__setgid, setgid)
#endif

32
sysdeps/unix/sysv/linux/i386/setregid.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -25,6 +25,7 @@
#include <linux/posix_types.h>
#include "kernel-features.h"
#include <pthread-functions.h>
#ifdef __NR_setregid32
@ -38,18 +39,21 @@ extern int __libc_missing_32bit_uids;
int
__setregid (gid_t rgid, gid_t egid)
{
int result;
#if __ASSUME_32BITUIDS > 0
return INLINE_SYSCALL (setregid32, 2, rgid, egid);
result = INLINE_SYSCALL (setregid32, 2, rgid, egid);
#else
# ifdef __NR_setregid32
if (__libc_missing_32bit_uids <= 0)
{
int result;
int saved_errno = errno;
result = INLINE_SYSCALL (setregid32, 2, rgid, egid);
if (result == 0 || errno != ENOSYS)
if (result == 0)
goto out;
if (errno != ENOSYS)
return result;
__set_errno (saved_errno);
@ -63,7 +67,25 @@ __setregid (gid_t rgid, gid_t egid)
return -1;
}
return INLINE_SYSCALL (setregid, 2, rgid, egid);
result = INLINE_SYSCALL (setregid, 2, rgid, egid);
# ifdef __NR_setregid32
out:
# endif
#endif
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setregid32;
cmd.id[0] = rgid;
cmd.id[1] = egid;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
#ifndef __setregid
weak_alias (__setregid, setregid)
#endif

34
sysdeps/unix/sysv/linux/i386/setresgid.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1998, 2000, 2002, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1998, 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -25,6 +25,8 @@
#include <sysdep.h>
#include <sys/syscall.h>
#include "kernel-features.h"
#include <pthread-functions.h>
#ifdef __NR_setresgid
@ -39,17 +41,20 @@ extern int __libc_missing_32bit_uids;
int
__setresgid (gid_t rgid, gid_t egid, gid_t sgid)
{
int result;
# if __ASSUME_32BITUIDS > 0
return INLINE_SYSCALL (setresgid32, 3, rgid, egid, sgid);
result = INLINE_SYSCALL (setresgid32, 3, rgid, egid, sgid);
# else
# ifdef __NR_setresgid32
if (__libc_missing_32bit_uids <= 0)
{
int result;
int saved_errno = errno;
result = INLINE_SYSCALL (setresgid32, 3, rgid, egid, sgid);
if (result == 0 || errno != ENOSYS)
if (result == 0)
goto out;
if (errno != ENOSYS)
return result;
__set_errno (saved_errno);
@ -65,11 +70,30 @@ __setresgid (gid_t rgid, gid_t egid, gid_t sgid)
return -1;
}
return INLINE_SYSCALL (setresgid, 3, rgid, egid, sgid);
result = INLINE_SYSCALL (setresgid, 3, rgid, egid, sgid);
# ifdef __NR_setresgid32
out:
# endif
# endif
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setresgid32;
cmd.id[0] = rgid;
cmd.id[1] = egid;
cmd.id[2] = sgid;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
libc_hidden_def (__setresgid)
#ifndef __setresgid
weak_alias (__setresgid, setresgid)
#endif
#else

34
sysdeps/unix/sysv/linux/i386/setresuid.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1998, 2000, 2002, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1998, 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -25,6 +25,8 @@
#include <sysdep.h>
#include <sys/syscall.h>
#include "kernel-features.h"
#include <pthread-functions.h>
#ifdef __NR_setresuid
@ -39,17 +41,20 @@ extern int __libc_missing_32bit_uids;
int
__setresuid (uid_t ruid, uid_t euid, uid_t suid)
{
int result;
# if __ASSUME_32BITUIDS > 0
return INLINE_SYSCALL (setresuid32, 3, ruid, euid, suid);
result = INLINE_SYSCALL (setresuid32, 3, ruid, euid, suid);
# else
# ifdef __NR_setresuid32
if (__libc_missing_32bit_uids <= 0)
{
int result;
int saved_errno = errno;
result = INLINE_SYSCALL (setresuid32, 3, ruid, euid, suid);
if (result == 0 || errno != ENOSYS)
if (result == 0)
goto out;
if (errno != ENOSYS)
return result;
__set_errno (saved_errno);
@ -65,11 +70,30 @@ __setresuid (uid_t ruid, uid_t euid, uid_t suid)
return -1;
}
return INLINE_SYSCALL (setresuid, 3, ruid, euid, suid);
result = INLINE_SYSCALL (setresuid, 3, ruid, euid, suid);
# ifdef __NR_setresuid32
out:
# endif
# endif
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setresuid32;
cmd.id[0] = ruid;
cmd.id[1] = euid;
cmd.id[2] = suid;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
libc_hidden_def (__setresuid)
#ifndef __setresuid
weak_alias (__setresuid, setresuid)
#endif
#else

32
sysdeps/unix/sysv/linux/i386/setreuid.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -25,6 +25,7 @@
#include <linux/posix_types.h>
#include "kernel-features.h"
#include <pthread-functions.h>
#ifdef __NR_setreuid32
@ -38,18 +39,21 @@ extern int __libc_missing_32bit_uids;
int
__setreuid (uid_t ruid, uid_t euid)
{
int result;
#if __ASSUME_32BITUIDS > 0
return INLINE_SYSCALL (setreuid32, 2, ruid, euid);
result = INLINE_SYSCALL (setreuid32, 2, ruid, euid);
#else
# ifdef __NR_setreuid32
if (__libc_missing_32bit_uids <= 0)
{
int result;
int saved_errno = errno;
result = INLINE_SYSCALL (setreuid32, 2, ruid, euid);
if (result == 0 || errno != ENOSYS)
if (result == 0)
goto out;
if (errno != ENOSYS)
return result;
__set_errno (saved_errno);
@ -63,7 +67,25 @@ __setreuid (uid_t ruid, uid_t euid)
return -1;
}
return INLINE_SYSCALL (setreuid, 2, ruid, euid);
result = INLINE_SYSCALL (setreuid, 2, ruid, euid);
# ifdef __NR_setreuid32
out:
# endif
#endif
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setreuid32;
cmd.id[0] = ruid;
cmd.id[1] = euid;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
#ifndef __setreuid
weak_alias (__setreuid, setreuid)
#endif

33
sysdeps/unix/sysv/linux/i386/setuid.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -25,6 +25,8 @@
#include <linux/posix_types.h>
#include "kernel-features.h"
#include <pthread-functions.h>
#ifdef __NR_setuid32
# if __ASSUME_32BITUIDS == 0
@ -37,8 +39,10 @@ extern int __libc_missing_32bit_uids;
int
__setuid (uid_t uid)
{
#if __ASSUME_32BITUIDS > 0
return INLINE_SYSCALL (setuid32, 1, uid);
int result;
#if __ASSUME_32BITUIDS > 0 && defined __NR_setuid32
result = INLINE_SYSCALL (setuid32, 1, uid);
#else
# ifdef __NR_setuid32
if (__libc_missing_32bit_uids <= 0)
@ -47,7 +51,9 @@ __setuid (uid_t uid)
int saved_errno = errno;
result = INLINE_SYSCALL (setuid32, 1, uid);
if (result == 0 || errno != ENOSYS)
if (result == 0)
goto out;
if (errno != ENOSYS)
return result;
__set_errno (saved_errno);
@ -62,7 +68,24 @@ __setuid (uid_t uid)
return -1;
}
return INLINE_SYSCALL (setuid, 1, uid);
result = INLINE_SYSCALL (setuid, 1, uid);
# ifdef __NR_setuid32
out:
# endif
#endif
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setuid32;
cmd.id[0] = uid;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
#ifndef __setuid
weak_alias (__setuid, setuid)
#endif

42
sysdeps/unix/sysv/linux/i386/sysdep.h
View File

@ -1,4 +1,5 @@
/* Copyright (C) 1992,1993,1995-2000,2002,2003 Free Software Foundation, Inc.
/* Copyright (C) 1992,1993,1995-2000,2002,2003,2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper, <drepper@gnu.org>, August 1995.
@ -343,7 +344,10 @@ asm (".L__X'%ebx = 1\n\t"
/* Define a macro which expands inline into the wrapper code for a system
call. This use is for internal calls that do not need to handle errors
normally. It will never touch errno. This returns just what the kernel
gave back. */
gave back.
The _NCS variant allows non-constant syscall numbers but it is not
possible to use more than four parameters. */
#undef INTERNAL_SYSCALL
#ifdef I386_USE_SYSENTER
# ifdef SHARED
@ -360,6 +364,18 @@ asm (".L__X'%ebx = 1\n\t"
: "i" (__NR_##name), "i" (offsetof (tcbhead_t, sysinfo)) \
ASMFMT_##nr(args) : "memory", "cc"); \
(int) resultvar; })
# define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
({ \
register unsigned int resultvar; \
EXTRAVAR_##nr \
asm volatile ( \
LOADARGS_##nr \
"call *%%gs:%P2\n\t" \
RESTOREARGS_##nr \
: "=a" (resultvar) \
: "0" (name), "i" (offsetof (tcbhead_t, sysinfo)) \
ASMFMT_##nr(args) : "memory", "cc"); \
(int) resultvar; })
# else
# define INTERNAL_SYSCALL(name, err, nr, args...) \
({ \
@ -373,6 +389,17 @@ asm (".L__X'%ebx = 1\n\t"
: "=a" (resultvar) \
: "i" (__NR_##name) ASMFMT_##nr(args) : "memory", "cc"); \
(int) resultvar; })
# define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
({ \
register unsigned int resultvar; \
EXTRAVAR_##nr \
asm volatile ( \
LOADARGS_##nr \
"call *_dl_sysinfo\n\t" \
RESTOREARGS_##nr \
: "=a" (resultvar) \
: "0" (name) ASMFMT_##nr(args) : "memory", "cc"); \
(int) resultvar; })
# endif
#else
# define INTERNAL_SYSCALL(name, err, nr, args...) \
@ -387,6 +414,17 @@ asm (".L__X'%ebx = 1\n\t"
: "=a" (resultvar) \
: "i" (__NR_##name) ASMFMT_##nr(args) : "memory", "cc"); \
(int) resultvar; })
# define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
({ \
register unsigned int resultvar; \
EXTRAVAR_##nr \
asm volatile ( \
LOADARGS_##nr \
"int $0x80\n\t" \
RESTOREARGS_##nr \
: "=a" (resultvar) \
: "0" (name) ASMFMT_##nr(args) : "memory", "cc"); \
(int) resultvar; })
#endif
#undef INTERNAL_SYSCALL_DECL

46
sysdeps/unix/sysv/linux/ia64/sysdep.h
View File

@ -199,33 +199,33 @@
#ifdef IA64_USE_NEW_STUB
#define DO_INLINE_SYSCALL(name, nr, args...) \
LOAD_ARGS_##nr (args) \
register long _r8 __asm ("r8"); \
register long _r10 __asm ("r10"); \
register long _r15 __asm ("r15") = __NR_##name; \
register void *_b7 __asm ("b7") = ((tcbhead_t *) __thread_self)->private; \
long _retval; \
LOAD_REGS_##nr \
/* \
* Don't specify any unwind info here. We mark ar.pfs as \
* clobbered. This will force the compiler to save ar.pfs \
* somewhere and emit appropriate unwind info for that save. \
*/ \
__asm __volatile ("br.call.sptk.many b6=%0;;\n" \
: "=b"(_b7), "=r" (_r8), "=r" (_r10), "=r" (_r15) \
ASM_OUTARGS_##nr \
: "0" (_b7), "3" (_r15) ASM_ARGS_##nr \
: "memory", "ar.pfs" ASM_CLOBBERS_##nr); \
# define DO_INLINE_SYSCALL(name, nr, args...) \
LOAD_ARGS_##nr (args) \
register long _r8 __asm ("r8"); \
register long _r10 __asm ("r10"); \
register long _r15 __asm ("r15") = name; \
register void *_b7 __asm ("b7") = ((tcbhead_t *) __thread_self)->private; \
long _retval; \
LOAD_REGS_##nr \
/* \
* Don't specify any unwind info here. We mark ar.pfs as \
* clobbered. This will force the compiler to save ar.pfs \
* somewhere and emit appropriate unwind info for that save. \
*/ \
__asm __volatile ("br.call.sptk.many b6=%0;;\n" \
: "=b"(_b7), "=r" (_r8), "=r" (_r10), "=r" (_r15) \
ASM_OUTARGS_##nr \
: "0" (_b7), "3" (_r15) ASM_ARGS_##nr \
: "memory", "ar.pfs" ASM_CLOBBERS_##nr); \
_retval = _r8;
#else /* !IA64_USE_NEW_STUB */
#define DO_INLINE_SYSCALL(name, nr, args...) \
# define DO_INLINE_SYSCALL(name, nr, args...) \
LOAD_ARGS_##nr (args) \
register long _r8 asm ("r8"); \
register long _r10 asm ("r10"); \
register long _r15 asm ("r15") = __NR_##name; \
register long _r15 asm ("r15") = name; \
long _retval; \
LOAD_REGS_##nr \
__asm __volatile (BREAK_INSN (__BREAK_SYSCALL) \
@ -240,7 +240,7 @@
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) \
({ \
DO_INLINE_SYSCALL(name, nr, args) \
DO_INLINE_SYSCALL(__NR_##name, nr, args) \
if (_r10 == -1) \
{ \
__set_errno (_retval); \
@ -252,11 +252,13 @@
#define INTERNAL_SYSCALL_DECL(err) long int err
#undef INTERNAL_SYSCALL
#define INTERNAL_SYSCALL(name, err, nr, args...) \
#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
({ \
DO_INLINE_SYSCALL(name, nr, args) \
err = _r10; \
_retval; })
#define INTERNAL_SYSCALL(name, err, nr, args...) \
INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args)
#undef INTERNAL_SYSCALL_ERROR_P
#define INTERNAL_SYSCALL_ERROR_P(val, err) (err == -1)

30
sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h
View File

@ -79,7 +79,7 @@
# define INTERNAL_SYSCALL_DECL(err) long int err
# undef INTERNAL_SYSCALL
# define INTERNAL_SYSCALL(name, err, nr, args...) \
# define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
({ \
register long int r0 __asm__ ("r0"); \
register long int r3 __asm__ ("r3"); \
@ -104,6 +104,8 @@
err = r0; \
(int) r3; \
})
# define INTERNAL_SYSCALL(name, err, nr, args...) \
INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args)
# undef INTERNAL_SYSCALL_ERROR_P
# define INTERNAL_SYSCALL_ERROR_P(val, err) \
@ -113,48 +115,48 @@
# define INTERNAL_SYSCALL_ERRNO(val, err) (val)
# define LOADARGS_0(name, dummy) \
r0 = __NR_##name
r0 = name
# define LOADARGS_1(name, __arg1) \
long int arg1 = (long int) (__arg1); \
LOADARGS_0(name, 0); \
extern void __illegally_sized_syscall_##name##_arg1 (void); \
extern void __illegally_sized_syscall_arg1 (void); \
if (__builtin_classify_type (__arg1) != 5 && sizeof (__arg1) > 4) \
__illegally_sized_syscall_##name##_arg1 (); \
__illegally_sized_syscall_arg1 (); \
r3 = arg1
# define LOADARGS_2(name, __arg1, __arg2) \
long int arg2 = (long int) (__arg2); \
LOADARGS_1(name, __arg1); \
extern void __illegally_sized_syscall_##name##_arg2 (void); \
extern void __illegally_sized_syscall_arg2 (void); \
if (__builtin_classify_type (__arg2) != 5 && sizeof (__arg2) > 4) \
__illegally_sized_syscall_##name##_arg2 (); \
__illegally_sized_syscall_arg2 (); \
r4 = arg2
# define LOADARGS_3(name, __arg1, __arg2, __arg3) \
long int arg3 = (long int) (__arg3); \
LOADARGS_2(name, __arg1, __arg2); \
extern void __illegally_sized_syscall_##name##_arg3 (void); \
extern void __illegally_sized_syscall_arg3 (void); \
if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 4) \
__illegally_sized_syscall_##name##_arg3 (); \
__illegally_sized_syscall_arg3 (); \
r5 = arg3
# define LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4) \
long int arg4 = (long int) (__arg4); \
LOADARGS_3(name, __arg1, __arg2, __arg3); \
extern void __illegally_sized_syscall_##name##_arg4 (void); \
extern void __illegally_sized_syscall_arg4 (void); \
if (__builtin_classify_type (__arg4) != 5 && sizeof (__arg4) > 4) \
__illegally_sized_syscall_##name##_arg4 (); \
__illegally_sized_syscall_arg4 (); \
r6 = arg4
# define LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
long int arg5 = (long int) (__arg5); \
LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4); \
extern void __illegally_sized_syscall_##name##_arg5 (void); \
extern void __illegally_sized_syscall_arg5 (void); \
if (__builtin_classify_type (__arg5) != 5 && sizeof (__arg5) > 4) \
__illegally_sized_syscall_##name##_arg5 (); \
__illegally_sized_syscall_arg5 (); \
r7 = arg5
# define LOADARGS_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
long int arg6 = (long int) (__arg6); \
LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
extern void __illegally_sized_syscall_##name##_arg6 (void); \
extern void __illegally_sized_syscall_arg6 (void); \
if (__builtin_classify_type (__arg6) != 5 && sizeof (__arg6) > 4) \
__illegally_sized_syscall_##name##_arg6 (); \
__illegally_sized_syscall_arg6 (); \
r8 = arg6
# define ASM_INPUT_0 "0" (r0)

30
sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h
View File

@ -91,7 +91,7 @@
the negation of the return value in the kernel gets reverted. */
#undef INTERNAL_SYSCALL
#define INTERNAL_SYSCALL(name, err, nr, args...) \
#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
({ \
register long int r0 __asm__ ("r0"); \
register long int r3 __asm__ ("r3"); \
@ -114,6 +114,8 @@
err = r0; \
(int) r3; \
})
#define INTERNAL_SYSCALL(name, err, nr, args...) \
INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args)
#undef INTERNAL_SYSCALL_DECL
#define INTERNAL_SYSCALL_DECL(err) long int err
@ -126,48 +128,48 @@
#define INTERNAL_SYSCALL_ERRNO(val, err) (val)
#define LOADARGS_0(name, dummy) \
r0 = __NR_##name
r0 = name
#define LOADARGS_1(name, __arg1) \
long int arg1 = (long int) (__arg1); \
LOADARGS_0(name, 0); \
extern void __illegally_sized_syscall_##name##_arg1 (void); \
extern void __illegally_sized_syscall_arg1 (void); \
if (__builtin_classify_type (__arg1) != 5 && sizeof (__arg1) > 8) \
__illegally_sized_syscall_##name##_arg1 (); \
__illegally_sized_syscall_arg1 (); \
r3 = arg1
#define LOADARGS_2(name, __arg1, __arg2) \
long int arg2 = (long int) (__arg2); \
LOADARGS_1(name, __arg1); \
extern void __illegally_sized_syscall_##name##_arg2 (void); \
extern void __illegally_sized_syscall_arg2 (void); \
if (__builtin_classify_type (__arg2) != 5 && sizeof (__arg2) > 8) \
__illegally_sized_syscall_##name##_arg2 (); \
__illegally_sized_syscall_arg2 (); \
r4 = arg2
#define LOADARGS_3(name, __arg1, __arg2, __arg3) \
long int arg3 = (long int) (__arg3); \
LOADARGS_2(name, __arg1, __arg2); \
extern void __illegally_sized_syscall_##name##_arg3 (void); \
extern void __illegally_sized_syscall_arg3 (void); \
if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 8) \
__illegally_sized_syscall_##name##_arg3 (); \
__illegally_sized_syscall_arg3 (); \
r5 = arg3
#define LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4) \
long int arg4 = (long int) (__arg4); \
LOADARGS_3(name, __arg1, __arg2, __arg3); \
extern void __illegally_sized_syscall_##name##_arg4 (void); \
extern void __illegally_sized_syscall_arg4 (void); \
if (__builtin_classify_type (__arg4) != 5 && sizeof (__arg4) > 8) \
__illegally_sized_syscall_##name##_arg4 (); \
__illegally_sized_syscall_arg4 (); \
r6 = arg4
#define LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
long int arg5 = (long int) (__arg5); \
LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4); \
extern void __illegally_sized_syscall_##name##_arg5 (void); \
extern void __illegally_sized_syscall_arg5 (void); \
if (__builtin_classify_type (__arg5) != 5 && sizeof (__arg5) > 8) \
__illegally_sized_syscall_##name##_arg5 (); \
__illegally_sized_syscall_arg5 (); \
r7 = arg5
#define LOADARGS_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
long int arg6 = (long int) (__arg6); \
LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
extern void __illegally_sized_syscall_##name##_arg6 (void); \
extern void __illegally_sized_syscall_arg6 (void); \
if (__builtin_classify_type (__arg6) != 5 && sizeof (__arg6) > 8) \
__illegally_sized_syscall_##name##_arg6 (); \
__illegally_sized_syscall_arg6 (); \
r8 = arg6
#define ASM_INPUT_0 "0" (r0)

28
sysdeps/unix/sysv/linux/setegid.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1998, 2000, 2002, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1998, 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -23,6 +23,8 @@
#include <sysdep.h>
#include "kernel-features.h"
#include <pthread-functions.h>
#if defined __NR_setresgid || __ASSUME_SETRESGID_SYSCALL > 0
@ -40,10 +42,10 @@ setegid (gid_t gid)
}
# if __ASSUME_32BITUIDS > 0 && defined __NR_setresgid32
return INLINE_SYSCALL (setresgid32, 3, -1, gid, -1);
result = INLINE_SYSCALL (setresgid32, 3, -1, gid, -1);
# else
/* First try the syscall. */
result = __setresgid (-1, gid, -1);
result = INLINE_SYSCALL (setresgid, 3, -1, gid, -1);
# if __ASSUME_SETRESGID_SYSCALL == 0
if (result == -1 && errno == ENOSYS)
/* No system call available. Use emulation. This may not work
@ -51,11 +53,29 @@ setegid (gid_t gid)
equal to the real group ID, making it impossible to switch back. */
result = __setregid (-1, gid);
# endif
# endif
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
# ifdef __NR_setresgid32
cmd.syscall_no = __NR_setresgid32;
# else
cmd.syscall_no = __NR_setresgid;
# endif
cmd.id[0] = -1;
cmd.id[1] = gid;
cmd.id[2] = -1;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
# endif
}
#ifndef setegid
libc_hidden_def (setegid)
#endif
#else
# include <sysdeps/unix/bsd/setegid.c>
#endif

30
sysdeps/unix/sysv/linux/seteuid.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1998, 1999, 2002, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1998, 1999, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -23,6 +23,8 @@
#include <sysdep.h>
#include "kernel-features.h"
#include <pthread-functions.h>
#if defined __NR_setresuid || __ASSUME_SETRESUID_SYSCALL > 0
@ -40,22 +42,40 @@ seteuid (uid_t uid)
}
# if __ASSUME_32BITUIDS > 0 && defined __NR_setresuid32
return INLINE_SYSCALL (setresuid32, 3, -1, uid, -1);
result = INLINE_SYSCALL (setresuid32, 3, -1, uid, -1);
# else
/* First try the syscall. */
result = __setresuid (-1, uid, -1);
# if __ASSUME_SETRESUID_SYSCALL == 0
result = INLINE_SYSCALL (setresuid, 3, -1, uid, -1);
# if __ASSUME_SETRESUID_SYSCALL == 0
if (result == -1 && errno == ENOSYS)
/* No system call available. Use emulation. This may not work
since `setreuid' also sets the saved user ID when UID is not
equal to the real user ID, making it impossible to switch back. */
result = __setreuid (-1, uid);
# endif
# endif
return result;
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
# ifdef __NR_setresuid32
cmd.syscall_no = __NR_setresuid32;
# else
cmd.syscall_no = __NR_setresuid;
# endif
cmd.id[0] = -1;
cmd.id[1] = uid;
cmd.id[2] = -1;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
#ifndef seteuid
libc_hidden_def (seteuid)
#endif
#else
# include <sysdeps/unix/bsd/seteuid.c>
#endif

53
sysdeps/unix/sysv/linux/setgid.c Normal file
View File

@ -0,0 +1,53 @@
/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <linux/posix_types.h>
#include "kernel-features.h"
#include <pthread-functions.h>
int
__setgid (gid_t gid)
{
int result;
result = INLINE_SYSCALL (setgid, 1, gid);
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setgid;
cmd.id[0] = gid;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
#ifndef __setgid
weak_alias (__setgid, setgid)
#endif

53
sysdeps/unix/sysv/linux/setregid.c Normal file
View File

@ -0,0 +1,53 @@
/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <linux/posix_types.h>
#include "kernel-features.h"
#include <pthread-functions.h>
int
__setregid (gid_t rgid, gid_t egid)
{
int result;
result = INLINE_SYSCALL (setregid, 2, rgid, egid);
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setregid;
cmd.id[0] = rgid;
cmd.id[1] = egid;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
#ifndef __setregid
weak_alias (__setregid, setregid)
#endif

54
sysdeps/unix/sysv/linux/setresgid.c Normal file
View File

@ -0,0 +1,54 @@
/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <linux/posix_types.h>
#include "kernel-features.h"
#include <pthread-functions.h>
int
__setresgid (gid_t rgid, gid_t egid, gid_t sgid)
{
int result;
result = INLINE_SYSCALL (setresgid, 3, rgid, egid, sgid);
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setresgid;
cmd.id[0] = rgid;
cmd.id[1] = egid;
cmd.id[2] = sgid;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
#ifndef __setresgid
weak_alias (__setresgid, setresgid)
#endif

54
sysdeps/unix/sysv/linux/setresuid.c Normal file
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@ -0,0 +1,54 @@
/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <linux/posix_types.h>
#include "kernel-features.h"
#include <pthread-functions.h>
int
__setresuid (uid_t ruid, uid_t euid, uid_t suid)
{
int result;
result = INLINE_SYSCALL (setresuid, 3, ruid, euid, suid);
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setresuid;
cmd.id[0] = ruid;
cmd.id[1] = euid;
cmd.id[2] = suid;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
#ifndef __setresuid
weak_alias (__setresuid, setresuid)
#endif

53
sysdeps/unix/sysv/linux/setreuid.c Normal file
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@ -0,0 +1,53 @@
/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <linux/posix_types.h>
#include "kernel-features.h"
#include <pthread-functions.h>
int
__setreuid (uid_t ruid, uid_t euid)
{
int result;
result = INLINE_SYSCALL (setreuid, 2, ruid, euid);
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setreuid;
cmd.id[0] = ruid;
cmd.id[1] = euid;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
#ifndef __setreuid
weak_alias (__setreuid, setreuid)
#endif

52
sysdeps/unix/sysv/linux/setuid.c Normal file
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@ -0,0 +1,52 @@
/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <linux/posix_types.h>
#include "kernel-features.h"
#include <pthread-functions.h>
int
__setuid (uid_t uid)
{
int result;
result = INLINE_SYSCALL (setuid, 1, uid);
#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
{
struct xid_command cmd;
cmd.syscall_no = __NR_setuid;
cmd.id[0] = uid;
__libc_pthread_functions.ptr__nptl_setxid (&cmd);
}
#endif
return result;
}
#ifndef __setuid
weak_alias (__setuid, setuid)
#endif

55
sysdeps/unix/sysv/linux/sparc/sparc32/setegid.c
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@ -1,54 +1 @@
/* Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>
#ifdef __NR_setresgid32
extern int __setresgid (gid_t rgid, gid_t egid, gid_t sgid);
int
setegid (gid_t gid)
{
int result;
if (gid == (gid_t) ~0)
{
__set_errno (EINVAL);
return -1;
}
/* First try the syscall. */
result = __setresgid (-1, gid, -1);
# if __ASSUME_SETRESGID_SYSCALL == 0
if (result == -1 && errno == ENOSYS)
/* No system call available. Use emulation. This may not work
since `setregid' also sets the saved group ID when GID is not
equal to the real group ID, making it impossible to switch back. */
result = __setregid (-1, gid);
# endif
return result;
}
libc_hidden_def (setegid)
#else
# include <sysdeps/unix/bsd/setegid.c>
#endif
#include <sysdeps/unix/sysv/linux/i386/setegid.c>

57
sysdeps/unix/sysv/linux/sparc/sparc32/seteuid.c
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@ -1,56 +1 @@
/* Copyright (C) 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>
#include "kernel-features.h"
#if defined __NR_setresuid32 || __ASSUME_SETRESUID_SYSCALL > 0
extern int __setresuid (uid_t ruid, uid_t euid, uid_t suid);
int
seteuid (uid_t uid)
{
int result;
if (uid == (uid_t) ~0)
{
__set_errno (EINVAL);
return -1;
}
/* First try the syscall. */
result = __setresuid (-1, uid, -1);
# if __ASSUME_SETRESUID_SYSCALL == 0
if (result == -1 && errno == ENOSYS)
/* No system call available. Use emulation. This may not work
since `setreuid' also sets the saved user ID when UID is not
equal to the real user ID, making it impossible to switch back. */
result = __setreuid (-1, uid);
# endif
return result;
}
libc_hidden_def (seteuid)
#else
# include <sysdeps/unix/bsd/seteuid.c>
#endif
#include <sysdeps/unix/sysv/linux/i386/seteuid.c>

1
sysdeps/unix/sysv/linux/sparc/sparc32/setresgid.c Normal file
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@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setresgid.c>

1
sysdeps/unix/sysv/linux/sparc/sparc32/setresuid.c Normal file
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@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setresuid.c>

2
sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list
View File

@ -2,7 +2,5 @@
setrlimit - setrlimit 2 __setrlimit setrlimit
getrlimit - getrlimit 2 __getrlimit getrlimit
setresuid - setresuid32 3 __setresuid setresuid
setresgid - setresgid32 3 __setresgid setresgid
getresuid - getresuid32 3 getresuid
getresgid - getresgid32 3 getresgid

9
sysdeps/unix/sysv/linux/x86_64/sysdep.h
View File

@ -236,18 +236,19 @@
#undef INTERNAL_SYSCALL_DECL
#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
#undef INTERNAL_SYSCALL
#define INTERNAL_SYSCALL(name, err, nr, args...) \
#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
({ \
unsigned long resultvar; \
LOAD_ARGS_##nr (args) \
LOAD_REGS_##nr \
asm volatile ( \
"movq %1, %%rax\n\t" \
"syscall\n\t" \
: "=a" (resultvar) \
: "i" (__NR_##name) ASM_ARGS_##nr : "memory", "cc", "r11", "cx"); \
: "0" (name) ASM_ARGS_##nr : "memory", "cc", "r11", "cx"); \
(long) resultvar; })
#undef INTERNAL_SYSCALL
#define INTERNAL_SYSCALL(name, err, nr, args...) \
INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args)
#undef INTERNAL_SYSCALL_ERROR_P
#define INTERNAL_SYSCALL_ERROR_P(val, err) \