2004-09-17 02:04:18 +02:00
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/* SELinux access controls for nscd.
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2011-10-07 16:06:31 +02:00
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Copyright (C) 2004,2005,2006,2007,2009,2011 Free Software Foundation, Inc.
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2004-09-17 02:04:18 +02:00
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This file is part of the GNU C Library.
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Contributed by Matthew Rickard <mjricka@epoch.ncsc.mil>, 2004.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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2005-06-15 00:52:30 +02:00
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#include "config.h"
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2004-09-17 02:04:18 +02:00
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#include <error.h>
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#include <errno.h>
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#include <libintl.h>
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#include <pthread.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <syslog.h>
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2005-12-29 02:09:00 +01:00
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#include <unistd.h>
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2006-04-26 18:29:29 +02:00
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#include <sys/prctl.h>
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2004-09-17 02:04:18 +02:00
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#include <selinux/av_permissions.h>
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#include <selinux/avc.h>
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#include <selinux/flask.h>
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#include <selinux/selinux.h>
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2005-06-15 00:52:30 +02:00
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#ifdef HAVE_LIBAUDIT
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2006-04-26 18:29:29 +02:00
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# include <libaudit.h>
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2005-06-15 00:52:30 +02:00
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#endif
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2004-09-17 02:04:18 +02:00
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#include "dbg_log.h"
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#include "selinux.h"
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#ifdef HAVE_SELINUX
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/* Global variable to tell if the kernel has SELinux support. */
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int selinux_enabled;
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/* Define mappings of access vector permissions to request types. */
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2011-10-07 16:06:31 +02:00
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static const access_vector_t perms[LASTREQ] =
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2004-09-17 02:04:18 +02:00
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{
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[GETPWBYNAME] = NSCD__GETPWD,
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[GETPWBYUID] = NSCD__GETPWD,
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[GETGRBYNAME] = NSCD__GETGRP,
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[GETGRBYGID] = NSCD__GETGRP,
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[GETHOSTBYNAME] = NSCD__GETHOST,
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[GETHOSTBYNAMEv6] = NSCD__GETHOST,
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[GETHOSTBYADDR] = NSCD__GETHOST,
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[GETHOSTBYADDRv6] = NSCD__GETHOST,
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[GETSTAT] = NSCD__GETSTAT,
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[SHUTDOWN] = NSCD__ADMIN,
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[INVALIDATE] = NSCD__ADMIN,
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[GETFDPW] = NSCD__SHMEMPWD,
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[GETFDGR] = NSCD__SHMEMGRP,
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[GETFDHST] = NSCD__SHMEMHOST,
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2004-09-30 04:24:51 +02:00
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[GETAI] = NSCD__GETHOST,
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2007-01-14 06:26:04 +01:00
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[INITGROUPS] = NSCD__GETGRP,
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#ifdef NSCD__GETSERV
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[GETSERVBYNAME] = NSCD__GETSERV,
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[GETSERVBYPORT] = NSCD__GETSERV,
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[GETFDSERV] = NSCD__SHMEMSERV,
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#endif
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2011-10-07 16:06:31 +02:00
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#ifdef NSCD__GETNETGRP
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[GETNETGRENT] = NSCD__GETNETGRP,
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[INNETGR] = NSCD__GETNETGRP,
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[GETFDNETGR] = NSCD__SHMEMNETGRP,
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#endif
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2004-09-17 02:04:18 +02:00
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};
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/* Store an entry ref to speed AVC decisions. */
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static struct avc_entry_ref aeref;
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/* Thread to listen for SELinux status changes via netlink. */
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static pthread_t avc_notify_thread;
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2005-06-15 00:52:30 +02:00
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#ifdef HAVE_LIBAUDIT
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/* Prototype for supporting the audit daemon */
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static void log_callback (const char *fmt, ...);
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#endif
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2004-09-17 02:04:18 +02:00
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/* Prototypes for AVC callback functions. */
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static void *avc_create_thread (void (*run) (void));
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static void avc_stop_thread (void *thread);
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static void *avc_alloc_lock (void);
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static void avc_get_lock (void *lock);
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static void avc_release_lock (void *lock);
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static void avc_free_lock (void *lock);
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/* AVC callback structures for use in avc_init. */
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static const struct avc_log_callback log_cb =
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{
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2005-06-15 00:52:30 +02:00
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#ifdef HAVE_LIBAUDIT
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.func_log = log_callback,
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#else
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2004-09-17 02:04:18 +02:00
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.func_log = dbg_log,
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2005-06-15 00:52:30 +02:00
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#endif
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2004-09-17 02:04:18 +02:00
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.func_audit = NULL
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};
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static const struct avc_thread_callback thread_cb =
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{
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.func_create_thread = avc_create_thread,
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.func_stop_thread = avc_stop_thread
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};
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static const struct avc_lock_callback lock_cb =
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{
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.func_alloc_lock = avc_alloc_lock,
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.func_get_lock = avc_get_lock,
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.func_release_lock = avc_release_lock,
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.func_free_lock = avc_free_lock
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};
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2005-06-15 00:52:30 +02:00
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#ifdef HAVE_LIBAUDIT
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/* The audit system's netlink socket descriptor */
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static int audit_fd = -1;
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/* When an avc denial occurs, log it to audit system */
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2005-06-20 17:49:08 +02:00
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static void
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2005-06-15 00:52:30 +02:00
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log_callback (const char *fmt, ...)
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{
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2005-12-29 02:09:00 +01:00
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if (audit_fd >= 0)
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{
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va_list ap;
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va_start (ap, fmt);
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char *buf;
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int e = vasprintf (&buf, fmt, ap);
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if (e < 0)
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{
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buf = alloca (BUFSIZ);
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vsnprintf (buf, BUFSIZ, fmt, ap);
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}
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/* FIXME: need to attribute this to real user, using getuid for now */
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audit_log_user_avc_message (audit_fd, AUDIT_USER_AVC, buf, NULL, NULL,
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NULL, getuid ());
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2005-06-15 00:52:30 +02:00
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2005-12-29 02:09:00 +01:00
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if (e >= 0)
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free (buf);
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va_end (ap);
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}
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2005-06-15 00:52:30 +02:00
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}
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/* Initialize the connection to the audit system */
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2005-06-20 17:49:08 +02:00
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static void
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2005-06-15 00:52:30 +02:00
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audit_init (void)
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{
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audit_fd = audit_open ();
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2005-12-29 02:09:00 +01:00
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if (audit_fd < 0
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/* If kernel doesn't support audit, bail out */
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&& errno != EINVAL && errno != EPROTONOSUPPORT && errno != EAFNOSUPPORT)
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2006-02-22 08:30:15 +01:00
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dbg_log (_("Failed opening connection to the audit subsystem: %m"));
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2005-06-15 00:52:30 +02:00
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}
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2006-04-26 18:29:29 +02:00
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# ifdef HAVE_LIBCAP
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static const cap_value_t new_cap_list[] =
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{ CAP_AUDIT_WRITE };
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# define nnew_cap_list (sizeof (new_cap_list) / sizeof (new_cap_list[0]))
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static const cap_value_t tmp_cap_list[] =
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{ CAP_AUDIT_WRITE, CAP_SETUID, CAP_SETGID };
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# define ntmp_cap_list (sizeof (tmp_cap_list) / sizeof (tmp_cap_list[0]))
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cap_t
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preserve_capabilities (void)
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{
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if (getuid () != 0)
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/* Not root, then we cannot preserve anything. */
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return NULL;
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if (prctl (PR_SET_KEEPCAPS, 1) == -1)
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{
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dbg_log (_("Failed to set keep-capabilities"));
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error (EXIT_FAILURE, errno, _("prctl(KEEPCAPS) failed"));
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/* NOTREACHED */
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}
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cap_t tmp_caps = cap_init ();
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2007-07-28 22:44:03 +02:00
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cap_t new_caps = NULL;
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2006-04-26 18:29:29 +02:00
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if (tmp_caps != NULL)
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new_caps = cap_init ();
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if (tmp_caps == NULL || new_caps == NULL)
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{
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if (tmp_caps != NULL)
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2007-03-26 22:41:09 +02:00
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cap_free (tmp_caps);
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2006-04-26 18:29:29 +02:00
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dbg_log (_("Failed to initialize drop of capabilities"));
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error (EXIT_FAILURE, 0, _("cap_init failed"));
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}
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/* There is no reason why these should not work. */
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2007-03-26 22:41:09 +02:00
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cap_set_flag (new_caps, CAP_PERMITTED, nnew_cap_list,
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(cap_value_t *) new_cap_list, CAP_SET);
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cap_set_flag (new_caps, CAP_EFFECTIVE, nnew_cap_list,
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(cap_value_t *) new_cap_list, CAP_SET);
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cap_set_flag (tmp_caps, CAP_PERMITTED, ntmp_cap_list,
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(cap_value_t *) tmp_cap_list, CAP_SET);
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cap_set_flag (tmp_caps, CAP_EFFECTIVE, ntmp_cap_list,
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(cap_value_t *) tmp_cap_list, CAP_SET);
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2006-04-26 18:29:29 +02:00
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int res = cap_set_proc (tmp_caps);
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cap_free (tmp_caps);
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if (__builtin_expect (res != 0, 0))
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{
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cap_free (new_caps);
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[BZ #2510, BZ #2830, BZ #3137, BZ #3313, BZ #3426, BZ #3465, BZ #3480, BZ #3483, BZ #3493, BZ #3514, BZ #3515, BZ #3664, BZ #3673, BZ #3674]
2007-01-11 Jakub Jelinek <jakub@redhat.com>
* sysdeps/i386/soft-fp/sfp-machine.h: Remove.
* sysdeps/x86_64/soft-fp/sfp-machine.h: Likewise.
2007-01-10 Ulrich Drepper <drepper@redhat.com>
* io/fts.c: Make sure fts_cur is always valid after return from
fts_read.
Patch by Miloslav Trmac <mitr@redhat.com>.
2006-10-27 Richard Sandiford <richard@codesourcery.com>
* elf/elf.h (R_MIPS_GLOB_DAT): Define.
(R_MIPS_NUM): Bump by 1.
2007-01-03 Jakub Jelinek <jakub@redhat.com>
* posix/execvp.c: Include alloca.h.
(allocate_scripts_argv): Renamed to...
(scripts_argv): ... this. Don't allocate buffer here nor count
arguments.
(execvp): Use alloca if possible.
* posix/Makefile: Add rules to build and run tst-vfork3 test.
* posix/tst-vfork3.c: New test.
* stdlib/Makefile (tst-strtod3-ENV): Define.
2007-01-02 Ulrich Drepper <drepper@redhat.com>
* posix/getconf.c: Update copyright year.
* nss/getent.c: Likewise.
* iconv/iconvconfig.c: Likewise.
* iconv/iconv_prog.c: Likewise.
* elf/ldconfig.c: Likewise.
* catgets/gencat.c: Likewise.
* csu/version.c: Likewise.
* elf/ldd.bash.in: Likewise.
* elf/sprof.c (print_version): Likewise.
* locale/programs/locale.c: Likewise.
* locale/programs/localedef.c: Likewise.
* nscd/nscd.c (print_version): Likewise.
* debug/xtrace.sh: Likewise.
* malloc/memusage.sh: Likewise.
* malloc/mtrace.pl: Likewise.
* debug/catchsegv.sh: Likewise.
2006-12-24 Ulrich Drepper <drepper@redhat.com>
* malloc/malloc.c (sYSMALLOc): Remove some unnecessary alignment
attempts.
2006-12-23 Ulrich Drepper <drepper@redhat.com>
* posix/wordexp.c: Remove some unnecessary tests.
2006-12-20 SUGIOKA Toshinobu <sugioka@itonet.co.jp>
* sysdeps/unix/sysv/linux/sh/bits/shm.h: New file.
* nss/getXXbyYY_r.c: Include atomic.h.
(INTERNAL (REENTRANT_NAME)): Write startp after start_fct,
add atomic_write_barrier () in between.
2006-11-28 Jakub Jelinek <jakub@redhat.com>
* elf/dl-support.c: Include dl-procinfo.h.
* sysdeps/powerpc/dl-procinfo.h (PPC_PLATFORM_POWER4,
PPC_PLATFORM_PPC970, PPC_PLATFORM_POWER5, PPC_PLATFORM_POWER5_PLUS,
PPC_PLATFORM_POWER6, PPC_PLATFORM_CELL_BE, PPC_PLATFORM_POWER6X):
Define.
(_dl_string_platform): Use PPC_PLATFORM_* macros instead of
hardcoded constants.
* sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_platform): Use
PPC_PLATFORM_* macros for array designators.
2006-11-11 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_cap_flags): Add 3 new cap
names to the beginning.
(_dl_powerpc_platforms): Add "power6x".
* sysdeps/powerpc/dl-procinfo.h (_DL_HWCAP_FIRST): Decrease.
(HWCAP_IMPORTANT): Add PPC_FEATURE_HAS_DFP.
(_DL_PLATFORMS_COUNT): Increase.
(_dl_string_platform): Handle power6x case.
* sysdeps/powerpc/sysdep.h (PPC_FEATURE_PA6T, PPC_FEATURE_HAS_DFP,
PPC_FEATURE_POWER6_EXT): Define.
(PPC_FEATURE_POWER5, PPC_FEATURE_POWER5_PLUS): Correct Comment.
[-2^31 .. 2^31) range.
* sysdeps/unix/sysv/linux/bits/statvfs.h: Define ST_RELATIME.
* sysdeps/unix/sysv/linux/internal_statvfs.c (__statvfs_getflags):
Handle relatime mount option.
2006-12-13 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S: Include
kernel-features.h.
2006-12-11 Ulrich Drepper <drepper@redhat.com>
* stdlib/strtod_l.c (____STRTOF_INTERNAL): Parse thousand
separators also if no non-zero digits found.
* stdlib/Makefile (tests): Add tst-strtod3.
[BZ #3664]
* stdlib/strtod_l.c (____STRTOF_INTERNAL): Fix test to recognize
empty parsed strings.
* stdlib/Makefile (tests): Add tst-strtod2.
* stdlib/tst-strtod2.c: New file.
[BZ #3673]
* stdlib/strtod_l.c (____STRTOF_INTERNAL): Fix exp_limit
computation.
* stdlib/Makefile (tests): Add tst-atof2.
* stdlib/tst-atof2.c: New file.
[BZ #3674]
* stdlib/strtod_l.c (____STRTOF_INTERNAL): Adjust exponent value
correctly if removing trailing zero of hex-float.
* stdlib/Makefile (tests): Add tst-atof1.
* stdlib/tst-atof1.c: New file.
* misc/mntent_r.c (__hasmntopt): Check p[optlen] even when p == rest.
Start searching for next comma at p rather than rest.
* misc/Makefile (tests): Add tst-mntent2.
* misc/tst-mntent2.c: New test.
2006-12-08 Ulrich Drepper <drepper@redhat.com>
* malloc/memusage.c: Handle realloc with new size of zero and
non-NULL pointer correctly.
(me): Really write first record twice.
(struct entry): Make format bi-arch safe.
(dest): Write out more realloc statistics.
* malloc/memusagestat.c (struct entry): Make format bi-arch safe.
2006-12-05 Jakub Jelinek <jakub@redhat.com>
* nis/nis_subr.c (nis_getnames): Revert last change.
2006-12-03 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/unix/sysv/linux/sh/sys/io.h: Removed.
2006-11-30 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/i386/i686/memcmp.S: Use jump table as the base of
jump table entries.
2006-11-30 Jan Kratochvil <jan.kratochvil@redhat.com>
* sysdeps/unix/sysv/linux/i386/clone.S: Provide CFI for the outermost
`clone' function to ensure proper unwinding stop of gdb.
* sysdeps/unix/sysv/linux/x86_64/clone.S: Likewise.
2006-12-01 Ulrich Drepper <drepper@redhat.com>
* nscd/nscd.init: Remove obsolete and commented-out -S option
handling.
2006-11-23 Jakub Jelinek <jakub@redhat.com>
[BZ #3514]
* manual/string.texi (strncmp): Fix pastos from wcscmp description.
[BZ #3515]
* manual/string.texi (strtok): Remove duplicate paragraph.
2006-12-01 Jan Kratochvil <jan.kratochvil@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/sigaction.c: Fix compatibility with
libgcc not supporting `rflags' unwinding (register # >= 17).
2006-11-30 Jakub Jelinek <jakub@redhat.com>
* sunrpc/svc_run.c (svc_run): Set my_pollfd to new_pollfd if realloc
succeeded.
2006-11-29 Daniel Jacobowitz <dan@codesourcery.com>
Jakub Jelinek <jakub@redhat.com>
Jan Kratochvil <jan.kratochvil@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/sigaction.c (restore_rt): Add correct
unwind information.
* sysdeps/unix/sysv/linux/x86_64/Makefile: Provide symbols for
'restore_rt' even in the 'signal' directory.
* sysdeps/unix/sysv/linux/x86_64/ucontext_i.sym: Extend the regs list.
malloc crashed. Don't allocate memory unnecessarily in each
loop.
2006-10-21 Jakub Jelinek <jakub@redhat.com>
* resolv/mapv4v6addr.h (map_v4v6_address): Fix last change.
2006-11-20 Ulrich Drepper <drepper@redhat.com>
* resolv/mapv4v6addr.h (map_v4v6_address): Optimize a bit.
2006-11-18 Bruno Haible <bruno@clisp.org>
* sysdeps/unix/sysv/linux/i386/getgroups.c (__getgroups): Invoke
__sysconf only after having tried to call getgroups32.
2006-11-19 Ulrich Drepper <drepper@redhat.com>
* nss/nss_files/files-hosts.c (LINE_PARSER): Support IPv6-style
addresses for IPv4 queries if they can be mapped.
2006-11-16 Jakub Jelinek <jakub@redhat.com>
* sysdeps/x86_64/fpu/s_copysignf.S (__copysignf): Switch to .text.
* sysdeps/x86_64/fpu/s_copysign.S (__copysign): Likewise.
(signmask): Add .size directive.
(othermask): Add .type directive.
2006-11-14 Ulrich Drepper <drepper@redhat.com>
* po/nl.po: Update from translation team.
* timezone/zdump.c: Redo fix for BZ #3137.
2006-11-14 Jakub Jelinek <jakub@redhat.com>
* nss/nss_files/files-alias.c (get_next_alias): Set line back
to first_unused after parsing :include: file.
* timezone/africa: Update from tzdata2006o.
* timezone/antarctica: Likewise.
* timezone/asia: Likewise.
* timezone/australasia: Likewise.
* timezone/backward: Likewise.
* timezone/europe: Likewise.
* timezone/iso3166.tab: Likewise.
* timezone/northamerica: Likewise.
* timezone/southamerica: Likewise.
* timezone/zone.tab: Likewise.
* time/tzfile.c (__tzfile_read): Extend to handle new file format
on machines with 64-bit time_t.
* timezone/checktab.awk: Update from tzcode2006o.
* timezone/ialloc.c: Likewise.
* timezone/private.h: Likewise.
* timezone/scheck.c: Likewise.
* timezone/tzfile.h: Likewise.
* timezone/tzselect.ksh: Likewise.
* timezone/zdump.c: Likewise.
* timezone/zic.c: Likewise.
[BZ #3483]
* elf/ldconfig.c (main): Call setlocale and textdomain.
Patch mostly by Benno Schulenberg <bensberg@justemail.net>.
[BZ #3480]
* manual/argp.texi: Fix typos.
* manual/charset.texi: Likewise.
* manual/errno.texi: Likewise.
* manual/filesys.texi: Likewise.
* manual/lang.texi: Likewise.
* manual/maint.texi: Likewise.
* manual/memory.texi: Likewise.
* manual/message.texi: Likewise.
* manual/resource.texi: Likewise.
* manual/search.texi: Likewise.
* manual/signal.texi: Likewise.
* manual/startup.texi: Likewise.
* manual/stdio.texi: Likewise.
* manual/sysinfo.texi: Likewise.
* manual/syslog.texi: Likewise.
* manual/time.texi: Likewise.
Patch by Ralf Wildenhues <Ralf.Wildenhues@gmx.de>.
[BZ #3465]
* sunrpc/clnt_raw.c: Minimal message improvements.
* sunrpc/pm_getmaps.c: Likewise.
* nis/nss_nisplus/nisplus-publickey.c: Likewise.
* nis/nis_print_group_entry.c: Likewise.
* locale/programs/repertoire.c: Likewise.
* locale/programs/charmap.c: Likewise.
* malloc/memusage.sh: Likewise.
* elf/dl-deps.c: Likewise.
* locale/programs/ld-collate.c: Likewise.
* libio/vswprintf.c: Likewise.
* malloc/memusagestat.c: Likewise.
* sunrpc/auth_unix.c: Likewise.
* sunrpc/rpc_main.c: Likewise.
* nscd/cache.c: Likewise.
* locale/programs/repertoire.c: Unify output messages.
* locale/programs/charmap.c: Likewise.
* locale/programs/ld-ctype.c: Likewise.
* locale/programs/ld-monetary.c: Likewise.
* locale/programs/ld-numeric.c: Likewise.
* locale/programs/ld-time.c: Likewise.
* elf/ldconfig.c: Likewise.
* nscd/selinux.c: Likewise.
* elf/cache.c: Likewise.
Patch mostly by Benno Schulenberg <bensberg@justemail.net>.
2006-11-10 Jakub Jelinek <jakub@redhat.com>
* string/strxfrm_l.c (STRXFRM): Fix trailing \1 optimization
if N is one bigger than return value.
* string/tst-strxfrm2.c (do_test): Also test strxfrm with l1 + 1
and l1 last arguments, if buf is defined, verify the return value
equals to strlen (buf) and verify no byte beyond passed length
is modified.
2006-11-10 Ulrich Drepper <drepper@redhat.com>
* po/sv.po: Update from translation team.
* sysdeps/gnu/siglist.c (__old_sys_siglist, __old_sys_sigabbrev):
Use __new_sys_siglist instead of _sys_siglist_internal as
second macro argument.
(_old_sys_siglist): Use declare_symbol_alias macro instead of
strong_alias.
2006-11-09 Ulrich Drepper <drepper@redhat.com>
[BZ #3493]
* posix/unistd.h (sysconf): Remove const attribute.
* sysdeps/posix/getaddrinfo.c (getaddrinfo): Fix test for
temporary or deprecated addresses.
Patch by Sridhar Samudrala <sri@us.ibm.com>.
* string/Makefile (tests): Add tst-strxfrm2.
* string/tst-strxfrm2.c: New file.
2006-10-09 Jakub Jelinek <jakub@redhat.com>
* elf/dl-debug.c (_dl_debug_initialize): Check r->r_map for 0
rather than r->r_brk.
* string/strxfrm_l.c (STRXFRM): Do the trailing \1 removal
optimization even if needed > n.
2006-11-07 Jakub Jelinek <jakub@redhat.com>
* include/libc-symbols.h (declare_symbol): Rename to...
(declare_symbol_alias): ... this. Add ORIGINAL argument, imply
strong_alias (ORIGINAL, SYMBOL) in asm to make sure it preceedes
.size directive.
* sysdeps/gnu/errlist-compat.awk: Adjust for declare_symbol_alias
changes.
* sysdeps/gnu/siglist.c: Likewise.
2006-11-03 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/fpu/bits/mathinline.h
[__LIBC_INTERNAL_MATH_INLINES]: Moved to ...
* sysdeps/powerpc/fpu/math_private.h: ...here. New file.
2006-11-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/sysconf.c (intel_check_word):
Update handling of cache descriptor 0x49 for new models.
* sysdeps/unix/sysv/linux/x86_64/sysconf.c (intel_check_word):
Likewise.
2006-11-02 Ulrich Drepper <drepper@redhat.com>
* configure.in: Work around ld --help change and avoid -z relro
test completely if the architecture doesn't care about security.
2006-11-01 Ulrich Drepper <drepper@redhat.com>
* po/sv.po: Update from translation team.
2006-10-31 Ulrich Drepper <drepper@redhat.com>
* stdlib/atexit.c (atexit): Don't mark as hidden when used to
generate compatibility version.
2006-10-29 Ulrich Drepper <drepper@redhat.com>
* configure.in: Relax -z relro requirement a bit.
* po/sv.po: Update from translation team.
2006-10-29 Jakub Jelinek <jakub@redhat.com>
* elf/dl-sym.c (do_sym): Use RTLD_SINGLE_THREAD_P.
* elf/dl-runtime.c (_dl_fixup, _dl_profile_fixup): Likewise.
* elf/dl-close.c (_dl_close_worker): Likewise.
* elf/dl-open.c (_dl_open_worker): Likewise.
* sysdeps/generic/sysdep-cancel.h (RTLD_SINGLE_THREAD_P): Define.
* configure.in: Require assembler support for visibility, compiler
support for visibility and aliases, linker support for various -z
options.
* Makeconfig: Remove conditional code which now is unnecessary.
* config.h.in: Likewise.
* config.make.in: Likewise.
* dlfcn/Makefile: Likewise.
* elf/Makefile: Likewise.
* elf/dl-load.c: Likewise.
* elf/rtld.c: Likewise.
* include/libc-symbols.h: Likewise.
* include/stdio.h: Likewise.
* io/Makefile: Likewise.
* io/fstat.c: Likewise.
* io/fstat64.c: Likewise.
* io/fstatat.c: Likewise.
* io/fstatat64.c: Likewise.
* io/lstat.c: Likewise.
* io/lstat64.c: Likewise.
* io/mknod.c: Likewise.
* io/mknodat.c: Likewise.
* io/stat.c: Likewise.
* io/stat64.c: Likewise.
* libio/stdio.c: Likewise.
* nscd/Makefile: Likewise.
* stdlib/Makefile: Likewise.
* stdlib/atexit.c: Likewise.
* sysdeps/generic/ldsodefs.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/i386/sysdep.h: Likewise.
* sysdeps/i386/i686/memcmp.S: Likewise.
* sysdeps/powerpc/powerpc32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sigaction.c: Likewise.
* Makerules: USE_TLS support is now default.
* tls.make.c: Likewise.
* csu/Versions: Likewise.
* csu/libc-start.c: Likewise.
* csu/libc-tls.c: Likewise.
* csu/version.c: Likewise.
* dlfcn/dlinfo.c: Likewise.
* elf/dl-addr.c: Likewise.
* elf/dl-cache.c: Likewise.
* elf/dl-close.c: Likewise.
* elf/dl-iteratephdr.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-object.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-support.c: Likewise.
* elf/dl-sym.c: Likewise.
* elf/dl-sysdep.c: Likewise.
* elf/dl-tls.c: Likewise.
* elf/ldconfig.c: Likewise.
* elf/rtld.c: Likewise.
* elf/tst-tls-dlinfo.c: Likewise.
* elf/tst-tls1.c: Likewise.
* elf/tst-tls10.h: Likewise.
* elf/tst-tls14.c: Likewise.
* elf/tst-tls2.c: Likewise.
* elf/tst-tls3.c: Likewise.
* elf/tst-tls4.c: Likewise.
* elf/tst-tls5.c: Likewise.
* elf/tst-tls6.c: Likewise.
* elf/tst-tls7.c: Likewise.
* elf/tst-tls8.c: Likewise.
* elf/tst-tls9.c: Likewise.
* elf/tst-tlsmod1.c: Likewise.
* elf/tst-tlsmod13.c: Likewise.
* elf/tst-tlsmod13a.c: Likewise.
* elf/tst-tlsmod14a.c: Likewise.
* elf/tst-tlsmod2.c: Likewise.
* elf/tst-tlsmod3.c: Likewise.
* elf/tst-tlsmod4.c: Likewise.
* elf/tst-tlsmod5.c: Likewise.
* elf/tst-tlsmod6.c: Likewise.
* include/errno.h: Likewise.
* include/link.h: Likewise.
* include/tls.h: Likewise.
* locale/global-locale.c: Likewise.
* locale/localeinfo.h: Likewise.
* malloc/arena.c: Likewise.
* malloc/hooks.c: Likewise.
* malloc/malloc.c: Likewise.
* resolv/Versions: Likewise.
* sysdeps/alpha/dl-machine.h: Likewise.
* sysdeps/alpha/libc-tls.c: Likewise.
* sysdeps/generic/ldsodefs.h: Likewise.
* sysdeps/generic/tls.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/ia64/dl-machine.h: Likewise.
* sysdeps/ia64/libc-tls.c: Likewise.
* sysdeps/mach/hurd/fork.c: Likewise.
* sysdeps/mach/hurd/i386/tls.h: Likewise.
* sysdeps/powerpc/powerpc32/dl-machine.c: Likwise.
* sysdeps/powerpc/powerpc32/dl-machine.h: Likewise.
* sysdeps/powerpc/powerpc64/dl-machine.h: Likewise.
* sysdeps/s390/libc-tls.c: Likewise.
* sysdeps/s390/s390-32/dl-machine.h: Likewise.
* sysdeps/s390/s390-64/dl-machine.h: Likewise.
* sysdeps/sh/dl-machine.h: Likewise.
* sysdeps/sparc/sparc32/dl-machine.h: Likewise.
* sysdeps/sparc/sparc64/dl-machine.h: Likewise.
* sysdeps/x86_64/dl-machine.h: Likewise.
[BZ #3426]
* stdlib/stdlib.h: Adjust comment for canonicalize_file_name to
reality.
2006-10-27 Jakub Jelinek <jakub@redhat.com>
* elf/dl-lookup.c (_dl_debug_bindings): Remove unused symbol_scope
argument.
(_dl_lookup_symbol_x): Adjust caller.
* sysdeps/generic/ldsodefs.h (struct link_namespaces): Remove
_ns_global_scope.
* elf/rtld.c (dl_main): Don't initialize _ns_global_scope.
* elf/dl-libc.c: Revert l_scope name changes.
* elf/dl-load.c: Likewise.
* elf/dl-object.c: Likewise.
* elf/rtld.c: Likewise.
* elf/dl-close.c (_dl_close): Likewise.
* elf/dl-open.c (dl_open_worker): Likewise. If not SINGLE_THREAD_P,
always use __rtld_mrlock_{change,done}. Always free old scope list
here if not l_scope_mem.
* elf/dl-runtime.c (_dl_fixup, _dl_profile_fixup): Revert l_scope name
change. Never free scope list here. Just __rtld_mrlock_lock before
the lookup and __rtld_mrlock_unlock it after the lookup.
* elf/dl-sym.c: Likewise.
* include/link.h (struct r_scoperec): Remove.
(struct link_map): Replace l_scoperec with l_scope, l_scoperec_mem
with l_scope_mem and l_scoperec_lock with l_scope_lock.
2006-10-25 Ulrich Drepper <drepper@redhat.com>
* sysdeps/gnu/netinet/tcp.h: Define TCP_CONGESTION.
2006-10-18 Ulrich Drepper <drepper@redhat.com>
* configure.in: Disable building profile libraries by default.
2006-10-18 Ulrich Drepper <drepper@redhat.com>
* elf/dl-lookup.c (_dl_lookup_symbol_x): Add warning to
_dl_lookup_symbol_x code.
2006-10-17 Jakub Jelinek <jakub@redhat.com>
* elf/dl-runtime.c: Include sysdep-cancel.h.
(_dl_fixup, _dl_profile_fixup): Use __rtld_mrlock_* and
scoperec->nusers only if !SINGLE_THREAD_P. Use atomic_*
instead of catomic_* macros.
* elf/dl-sym.c: Include sysdep-cancel.h.
(do_sym): Use __rtld_mrlock_* and scoperec->nusers only
if !SINGLE_THREAD_P. Use atomic_* instead of catomic_* macros.
* elf/dl-close.c: Include sysdep-cancel.h.
(_dl_close): Use __rtld_mrlock_* and scoperec->nusers only
if !SINGLE_THREAD_P. Use atomic_* instead of catomic_* macros.
* elf/dl-open.c: Include sysdep-cancel.h.
(dl_open_worker): Use __rtld_mrlock_* and scoperec->nusers only
if !SINGLE_THREAD_P. Use atomic_* instead of catomic_* macros.
2006-10-17 Jakub Jelinek <jakub@redhat.com>
[BZ #3313]
* malloc/malloc.c (malloc_consolidate): Set maxfb to address of last
fastbin rather than end of fastbin array.
2006-10-18 Ulrich Drepper <drepper@redhat.com>
* sysdeps/i386/i486/bits/atomic.h (catomic_decrement): Use correct
body macro.
* sysdeps/x86_64/bits/atomic.h
(__arch_c_compare_and_exchange_val_64_acq): Add missing casts.
(catomic_decrement): Use correct body macro.
2006-10-17 Jakub Jelinek <jakub@redhat.com>
* include/atomic.h: Add a unique prefix to all local variables
in macros.
* csu/tst-atomic.c (do_test): Test also catomic_* macros.
2006-10-14 Ulrich Drepper <drepper@redhat.com>
* resolv/arpa/nameser.h: Document that ns_t_a6 is deprecated.
[BZ #3313]
* malloc/malloc.c (malloc_consolidate): Don't use get_fast_max to
determine highest fast bin to consolidate, always look into all of
them.
(do_check_malloc_state): Only require for empty bins for large
sizes in main arena.
* libio/stdio.h: Add more __wur attributes.
2006-11-12 Andreas Jaeger <aj@suse.de>
[BZ #2510]
* manual/search.texi (Hash Search Function): Clarify.
(Array Search Function): Clarify.
2006-11-12 Joseph Myers <joseph@codesourcery.com>
[BZ #2830]
* math/atest-exp.c (main): Cast hex value to mp_limb_t before
shifting.
* math/atest-exp2.c (read_mpn_hex): Likewise.
* math/atest-sincos.c (main): Likewise.
* sysdeps/unix/sysv/linux/syscalls.list: Add epoll_pwait.
* sysdeps/unix/sysv/linux/sys/epoll.h: Declare epoll_pwait.
* sysdeps/unix/sysv/linux/Versions (libc): Add epoll_pwait for
version GLIBC_2.6.
* Versions.def: Add GLIBC_2.6 for libc.
* sysdeps/i386/i486/bits/atomic.h: Add catomic_* support.
2006-10-11 Jakub Jelinek <jakub@redhat.com>
* malloc/malloc.c (_int_malloc): Remove unused any_larger variable.
* nis/nis_defaults.c (__nis_default_access): Don't call getenv twice.
* nis/nis_subr.c (nis_getnames): Use __secure_getenv instead of getenv.
* sysdeps/generic/unsecvars.h: Add NIS_PATH.
2006-10-11 Ulrich Drepper <drepper@redhat.com>
* include/atomic.c: Define catomic_* operations.
* sysdeps/x86_64/bits/atomic.h: Likewise. Fix a few minor problems.
* stdlib/cxa_finalize.c: Use catomic_* operations instead of atomic_*.
* malloc/memusage.c: Likewise.
* gmon/mcount.c: Likewise.
* elf/dl-close.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-sym.c: Likewise.
* elf/dl-runtime.c: Likewise.
* elf/dl-fptr.c: Likewise.
* resolv/res_libc.c: Likewise.
2006-10-10 Roland McGrath <roland@frob.com>
* sysdeps/mach/hurd/utimes.c: Use a union to avoid an improper cast.
* sysdeps/mach/hurd/futimes.c: Likewise.
* sysdeps/mach/hurd/lutimes.c: Likewise.
2006-10-09 Ulrich Drepper <drepper@redhat.com>
Jakub Jelinek <jakub@redhat.com>
Implement reference counting of scope records.
* elf/dl-close.c (_dl_close): Remove all scopes from removed objects
from the list in objects which remain. Always allocate new scope
record.
* elf/dl-open.c (dl_open_worker): When growing array for scopes,
don't resize, allocate a new one.
* elf/dl-runtime.c: Update reference counters before using a scope
array.
* elf/dl-sym.c: Likewise.
* elf/dl-libc.c: Adjust for l_scope name change.
* elf/dl-load.c: Likewise.
* elf/dl-object.c: Likewise.
* elf/rtld.c: Likewise.
* include/link.h: Include <rtld-lowlevel.h>. Define struct
r_scoperec. Replace r_scope with pointer to r_scoperec structure.
Add l_scoperec_lock.
* sysdeps/generic/ldsodefs.h: Include <rtld-lowlevel.h>.
* sysdeps/generic/rtld-lowlevel.h: New file.
* include/atomic.h: Rename atomic_and to atomic_and_val and
atomic_or to atomic_or_val. Define new macros atomic_and and
atomic_or which do not return values.
* sysdeps/x86_64/bits/atomic.h: Define atomic_and and atomic_or.
Various cleanups.
* sysdeps/i386/i486/bits/atomic.h: Likewise.
* po/sv.po: Update from translation team.
2006-10-07 Ulrich Drepper <drepper@redhat.com>
* Versions.def: Add GLIBC_2.6 to libpthread.
* include/shlib-compat.h (SHLIB_COMPAT): Expand parameters before use.
(versioned_symbol): Likewise.
(compat_symbol): Likewise.
* po/tr.po: Update from translation team.
* nis/Banner: Removed. It's been integral part forever and the
author info is incomplete anyway.
* libio/Banner: Likewise.
2006-10-06 Ulrich Drepper <drepper@redhat.com>
* version.h (VERSION): Bump to 2.5.90 for new development tree.
2007-01-11 22:51:07 +01:00
|
|
|
dbg_log (_("Failed to drop capabilities"));
|
2006-04-26 18:29:29 +02:00
|
|
|
error (EXIT_FAILURE, 0, _("cap_set_proc failed"));
|
|
|
|
}
|
|
|
|
|
|
|
|
return new_caps;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
install_real_capabilities (cap_t new_caps)
|
|
|
|
{
|
|
|
|
/* If we have no capabilities there is nothing to do here. */
|
|
|
|
if (new_caps == NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (cap_set_proc (new_caps))
|
|
|
|
{
|
|
|
|
cap_free (new_caps);
|
|
|
|
dbg_log (_("Failed to drop capabilities"));
|
|
|
|
error (EXIT_FAILURE, 0, _("cap_set_proc failed"));
|
|
|
|
/* NOTREACHED */
|
|
|
|
}
|
|
|
|
|
|
|
|
cap_free (new_caps);
|
|
|
|
|
|
|
|
if (prctl (PR_SET_KEEPCAPS, 0) == -1)
|
|
|
|
{
|
|
|
|
dbg_log (_("Failed to unset keep-capabilities"));
|
|
|
|
error (EXIT_FAILURE, errno, _("prctl(KEEPCAPS) failed"));
|
|
|
|
/* NOTREACHED */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
# endif /* HAVE_LIBCAP */
|
2005-06-15 00:52:30 +02:00
|
|
|
#endif /* HAVE_LIBAUDIT */
|
2004-09-17 02:04:18 +02:00
|
|
|
|
|
|
|
/* Determine if we are running on an SELinux kernel. Set selinux_enabled
|
|
|
|
to the result. */
|
|
|
|
void
|
|
|
|
nscd_selinux_enabled (int *selinux_enabled)
|
|
|
|
{
|
|
|
|
*selinux_enabled = is_selinux_enabled ();
|
|
|
|
if (*selinux_enabled < 0)
|
|
|
|
{
|
|
|
|
dbg_log (_("Failed to determine if kernel supports SELinux"));
|
|
|
|
exit (EXIT_FAILURE);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Create thread for AVC netlink notification. */
|
|
|
|
static void *
|
|
|
|
avc_create_thread (void (*run) (void))
|
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc =
|
|
|
|
pthread_create (&avc_notify_thread, NULL, (void *(*) (void *)) run, NULL);
|
|
|
|
if (rc != 0)
|
|
|
|
error (EXIT_FAILURE, rc, _("Failed to start AVC thread"));
|
|
|
|
|
|
|
|
return &avc_notify_thread;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Stop AVC netlink thread. */
|
|
|
|
static void
|
|
|
|
avc_stop_thread (void *thread)
|
|
|
|
{
|
|
|
|
pthread_cancel (*(pthread_t *) thread);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Allocate a new AVC lock. */
|
|
|
|
static void *
|
|
|
|
avc_alloc_lock (void)
|
|
|
|
{
|
|
|
|
pthread_mutex_t *avc_mutex;
|
|
|
|
|
|
|
|
avc_mutex = malloc (sizeof (pthread_mutex_t));
|
|
|
|
if (avc_mutex == NULL)
|
|
|
|
error (EXIT_FAILURE, errno, _("Failed to create AVC lock"));
|
|
|
|
pthread_mutex_init (avc_mutex, NULL);
|
|
|
|
|
|
|
|
return avc_mutex;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Acquire an AVC lock. */
|
|
|
|
static void
|
|
|
|
avc_get_lock (void *lock)
|
|
|
|
{
|
|
|
|
pthread_mutex_lock (lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Release an AVC lock. */
|
|
|
|
static void
|
|
|
|
avc_release_lock (void *lock)
|
|
|
|
{
|
|
|
|
pthread_mutex_unlock (lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Free an AVC lock. */
|
|
|
|
static void
|
|
|
|
avc_free_lock (void *lock)
|
|
|
|
{
|
|
|
|
pthread_mutex_destroy (lock);
|
|
|
|
free (lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Initialize the user space access vector cache (AVC) for NSCD along with
|
|
|
|
log/thread/lock callbacks. */
|
|
|
|
void
|
|
|
|
nscd_avc_init (void)
|
|
|
|
{
|
|
|
|
avc_entry_ref_init (&aeref);
|
|
|
|
|
|
|
|
if (avc_init ("avc", NULL, &log_cb, &thread_cb, &lock_cb) < 0)
|
|
|
|
error (EXIT_FAILURE, errno, _("Failed to start AVC"));
|
|
|
|
else
|
|
|
|
dbg_log (_("Access Vector Cache (AVC) started"));
|
2005-06-15 00:52:30 +02:00
|
|
|
#ifdef HAVE_LIBAUDIT
|
|
|
|
audit_init ();
|
|
|
|
#endif
|
2004-09-17 02:04:18 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Check the permission from the caller (via getpeercon) to nscd.
|
|
|
|
Returns 0 if access is allowed, 1 if denied, and -1 on error. */
|
|
|
|
int
|
|
|
|
nscd_request_avc_has_perm (int fd, request_type req)
|
|
|
|
{
|
|
|
|
/* Initialize to NULL so we know what to free in case of failure. */
|
|
|
|
security_context_t scon = NULL;
|
|
|
|
security_context_t tcon = NULL;
|
|
|
|
security_id_t ssid = NULL;
|
|
|
|
security_id_t tsid = NULL;
|
|
|
|
int rc = -1;
|
|
|
|
|
|
|
|
if (getpeercon (fd, &scon) < 0)
|
|
|
|
{
|
|
|
|
dbg_log (_("Error getting context of socket peer"));
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
if (getcon (&tcon) < 0)
|
|
|
|
{
|
|
|
|
dbg_log (_("Error getting context of nscd"));
|
|
|
|
goto out;
|
|
|
|
}
|
2004-10-03 03:21:47 +02:00
|
|
|
if (avc_context_to_sid (scon, &ssid) < 0
|
|
|
|
|| avc_context_to_sid (tcon, &tsid) < 0)
|
2004-09-17 02:04:18 +02:00
|
|
|
{
|
|
|
|
dbg_log (_("Error getting sid from context"));
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2007-11-06 19:26:44 +01:00
|
|
|
#ifndef NSCD__GETSERV
|
|
|
|
if (perms[req] == 0)
|
|
|
|
{
|
|
|
|
dbg_log (_("compile-time support for database policy missing"));
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2004-09-17 02:04:18 +02:00
|
|
|
rc = avc_has_perm (ssid, tsid, SECCLASS_NSCD, perms[req], &aeref, NULL) < 0;
|
|
|
|
|
|
|
|
out:
|
|
|
|
if (scon)
|
|
|
|
freecon (scon);
|
|
|
|
if (tcon)
|
|
|
|
freecon (tcon);
|
|
|
|
if (ssid)
|
|
|
|
sidput (ssid);
|
|
|
|
if (tsid)
|
|
|
|
sidput (tsid);
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Wrapper to get AVC statistics. */
|
|
|
|
void
|
|
|
|
nscd_avc_cache_stats (struct avc_cache_stats *cstats)
|
|
|
|
{
|
|
|
|
avc_cache_stats (cstats);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Print the AVC statistics to stdout. */
|
|
|
|
void
|
|
|
|
nscd_avc_print_stats (struct avc_cache_stats *cstats)
|
|
|
|
{
|
|
|
|
printf (_("\nSELinux AVC Statistics:\n\n"
|
|
|
|
"%15u entry lookups\n"
|
|
|
|
"%15u entry hits\n"
|
|
|
|
"%15u entry misses\n"
|
|
|
|
"%15u entry discards\n"
|
|
|
|
"%15u CAV lookups\n"
|
|
|
|
"%15u CAV hits\n"
|
|
|
|
"%15u CAV probes\n"
|
|
|
|
"%15u CAV misses\n"),
|
|
|
|
cstats->entry_lookups, cstats->entry_hits, cstats->entry_misses,
|
|
|
|
cstats->entry_discards, cstats->cav_lookups, cstats->cav_hits,
|
|
|
|
cstats->cav_probes, cstats->cav_misses);
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif /* HAVE_SELINUX */
|