AC_REQUIRE([gl_SIZE_MAX])
AC_CHECK_HEADERS(stdint.h)
])
+
+# from http://autoconf-archive.cryp.to/ax_tls.html
+#
+# This was licensed under the GPL with the following exception:
+#
+# As a special exception, the respective Autoconf Macro's copyright
+# owner gives unlimited permission to copy, distribute and modify the
+# configure scripts that are the output of Autoconf when processing
+# the Macro. You need not follow the terms of the GNU General Public
+# License when using or distributing such scripts, even though
+# portions of the text of the Macro appear in them. The GNU General
+# Public License (GPL) does govern all other use of the material that
+# constitutes the Autoconf Macro.
+#
+# This special exception to the GPL applies to versions of the
+# Autoconf Macro released by the Autoconf Macro Archive. When you make
+# and distribute a modified version of the Autoconf Macro, you may
+# extend this special exception to the GPL to apply to your modified
+# version as well.
+#
+AC_DEFUN([AX_TLS], [
+ AC_MSG_CHECKING(for thread local storage (TLS) class)
+ AC_CACHE_VAL(ac_cv_tls, [
+ ax_tls_keywords="__thread __declspec(thread) none"
+ for ax_tls_keyword in $ax_tls_keywords; do
+ case $ax_tls_keyword in
+ none) ac_cv_tls=none ; break ;;
+ *)
+ AC_TRY_COMPILE(
+ [#include <stdlib.h>
+ static void
+ foo(void) {
+ static ] $ax_tls_keyword [ int bar;
+ exit(1);
+ }],
+ [],
+ [ac_cv_tls=$ax_tls_keyword ; break],
+ ac_cv_tls=none
+ )
+ esac
+ done
+])
+
+ if test "$ac_cv_tls" != "none"; then
+ dnl AC_DEFINE([TLS], [], [If the compiler supports a TLS storage class define it to that here])
+ AC_DEFINE_UNQUOTED([TLS], $ac_cv_tls, [If the compiler supports a TLS storage class define it to that here])
+ fi
+ AC_MSG_RESULT($ac_cv_tls)
+])
fi
+ { echo "$as_me:$LINENO: checking for thread local storage (TLS) class" >&5
+echo $ECHO_N "checking for thread local storage (TLS) class... $ECHO_C" >&6; }
+ if test "${ac_cv_tls+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+ ax_tls_keywords="__thread __declspec(thread) none"
+ for ax_tls_keyword in $ax_tls_keywords; do
+ case $ax_tls_keyword in
+ none) ac_cv_tls=none ; break ;;
+ *)
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <stdlib.h>
+ static void
+ foo(void) {
+ static $ax_tls_keyword int bar;
+ exit(1);
+ }
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+ (eval "$ac_compile") 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext; then
+ ac_cv_tls=$ax_tls_keyword ; break
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_cv_tls=none
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ esac
+ done
+
+fi
+
+
+ if test "$ac_cv_tls" != "none"; then
+
+cat >>confdefs.h <<_ACEOF
+#define TLS $ac_cv_tls
+_ACEOF
+
+ fi
+ { echo "$as_me:$LINENO: result: $ac_cv_tls" >&5
+echo "${ECHO_T}$ac_cv_tls" >&6; }
+
+
-for ac_func in chflags getrusage llseek lseek64 open64 fstat64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap utime
+
+
+for ac_func in chflags getrusage llseek lseek64 open64 fstat64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap utime setresuid setresgid
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
{ echo "$as_me:$LINENO: checking for $ac_func" >&5
else
AC_CHECK_PROGS(BUILD_CC, gcc cc)
fi
+AX_TLS
AC_CHECK_HEADERS(stdlib.h unistd.h stdarg.h stdint.h errno.h malloc.h mntent.h paths.h dirent.h getopt.h setjmp.h signal.h termios.h linux/fd.h linux/major.h sys/disklabel.h sys/ioctl.h sys/mman.h sys/mkdev.h sys/prctl.h sys/queue.h sys/sockio.h sys/socket.h sys/sysmacros.h sys/time.h sys/stat.h sys/types.h sys/wait.h sys/resource.h net/if_dl.h netinet/in.h utime.h)
AC_CHECK_HEADERS(sys/disk.h sys/mount.h,,,
[[
[#include <sys/types.h>
#include <sys/socket.h>])
dnl
-AC_CHECK_FUNCS(chflags getrusage llseek lseek64 open64 fstat64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap utime)
+AC_CHECK_FUNCS(chflags getrusage llseek lseek64 open64 fstat64 getmntinfo strtoull strcasecmp srandom jrand48 fchown mallinfo fdatasync strnlen strptime strdup sysconf pathconf posix_memalign memalign valloc __secure_getenv prctl mmap utime setresuid setresgid)
dnl
dnl Check to see if -lsocket is required (solaris) to make something
dnl that uses socket() to compile; this is needed for the UUID library
+e2fsprogs (1.40.3-2) unstable; urgency=low
+
+ * Add uuidd daemon
+
+ -- Theodore Y. Ts'o <tytso@mit.edu> Sun, 09 Dec 2007 22:47:53 -0500
+
e2fsprogs (1.40.3-1) unstable; urgency=medium
* New upstream release
Section: libs
Priority: required
Depends: ${shlibs:Depends}
+Recommends: uuid-runtime
Replaces: e2fsprogs (<< 1.34-1)
Architecture: any
Description: universally unique id library
libuuid generates and parses 128-bit universally unique id's (UUID's).
See RFC 4122 for more information.
+Package: uuid-runtime
+Section: libs
+Priority: optional
+Depends: ${shlibs:Depends}
+Replaces: e2fsprogs (<= 1.40.3-1ubuntu1)
+Architecture: any
+Description: universally unique id library
+ libuuid generates and parses 128-bit universally unique id's (UUID's).
+ See RFC 4122 for more information.
+ .
+ This package contains the uuidd daemon which is used by libuuid as well as
+ the uuidgen program.
+
Package: libuuid1-udeb
Section: debian-installer
Priority: optional
--- /dev/null
+#!/bin/sh
+
+adduser --system --group --no-create-home --disabled-login \
+ --quiet --home /var/lib/libuuid libuuid
+mkdir -p /var/lib/libuuid
+chown libuuid:libuuid /var/lib/libuuid
+chmod 2775 /var/lib/libuuid
+
--- /dev/null
+#!/bin/sh
+set -e
+if [ "$1" = purge ]
+then
+ rm -rf /var/lib/libuuid
+fi
DH_OPTIONS= dh_installchangelogs -pe2fsprogs \
-plibblkid${BLKID_SOVERSION} -plibcomerr${COMERR_SOVERSION} \
-plibss${SS_SOVERSION} -plibuuid${UUID_SOVERSION} \
- -pe2fslibs -puuid-dev -pe2fsck-static
+ -pe2fslibs -puuid-dev -puuid-runtime -pe2fsck-static
dh_fixperms
ifneq ($(ismips),)
--- /dev/null
+This package was added to the e2fsprogs debian source package by
+Theodore Ts'o <tytso@mit.edu> on Fri Dec 14 22:24:35 EST 2007
+
+It is part of the main e2fsprogs distribution, which can be found at:
+
+ http://sourceforge.net/projects/e2fsprogs
+
+Upstream Author: Theodore Ts'o <tytso@mit.edu>
+
+Copyright:
+
+Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 by
+Theodore Ts'o
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+ notice, and the entire permission notice in its entirety,
+ including the disclaimer of warranties.
+2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+3. The name of the author may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
+WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGE.
--- /dev/null
+usr/bin/uuidgen
+usr/sbin/uuidd
+usr/share/man/man8/uuidd.*
+usr/share/man/man1/uuidgen.*
--- /dev/null
+#!/bin/sh
+
+adduser --system --group --no-create-home --disabled-login \
+ --quiet --home /var/lib/libuuid libuuid
+mkdir -p /var/run/uuidd
+chown libuuid:libuuid /var/run/uuidd
+chmod 775 /var/run/uuidd
+chown libuuid:libuuid /usr/sbin/uuidd
+chmod 6755 /usr/sbin/uuidd
--- /dev/null
+#!/bin/sh
+set -e
+if [ "$1" = purge ]
+then
+ rm -rf /var/run/uuidd
+fi
+
--- /dev/null
+#! /bin/sh
+
+if [ -x /usr/sbin/uuidd ]
+then
+ /usr/sbin/uuidd -k || true
+fi
--- /dev/null
+libuuid 1 libuuid1 (> 1.40.3-1)
*/
#define _SVID_SOURCE
+#include <stdio.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
+#include <sys/un.h>
#ifdef HAVE_SYS_SOCKIO_H
#include <sys/sockio.h>
#endif
#endif
#include "uuidP.h"
+#include "uuidd.h"
#ifdef HAVE_SRANDOM
#define srand(x) srandom(x)
#define rand() random()
#endif
+#ifdef TLS
+#define THREAD_LOCAL static TLS
+#else
+#define THREAD_LOCAL static
+#endif
+
#if defined(__linux__) && defined(__NR_gettid) && defined(HAVE_JRAND48)
#define DO_JRAND_MIX
-static unsigned short jrand_seed[3];
+THREAD_LOCAL unsigned short jrand_seed[3];
#endif
static int get_random_fd(void)
/* Assume that the gettimeofday() has microsecond granularity */
#define MAX_ADJUSTMENT 10
-static int get_clock(uint32_t *clock_high, uint32_t *clock_low, uint16_t *ret_clock_seq)
+static int get_clock(uint32_t *clock_high, uint32_t *clock_low,
+ uint16_t *ret_clock_seq, int *num)
{
- static int adjustment = 0;
- static struct timeval last = {0, 0};
- static uint16_t clock_seq;
+ THREAD_LOCAL int adjustment = 0;
+ THREAD_LOCAL struct timeval last = {0, 0};
+ THREAD_LOCAL int state_fd = -2;
+ THREAD_LOCAL FILE *state_f;
+ THREAD_LOCAL uint16_t clock_seq;
struct timeval tv;
unsigned long long clock_reg;
-
-try_again:
- gettimeofday(&tv, 0);
+ mode_t save_umask;
+
+ if (state_fd == -2) {
+ save_umask = umask(0);
+ state_fd = open("/var/lib/libuuid/clock.txt",
+ O_RDWR|O_CREAT, 0660);
+ (void) umask(save_umask);
+ state_f = fdopen(state_fd, "r+");
+ if (!state_f) {
+ close(state_fd);
+ state_fd = -1;
+ }
+ }
+ if (state_fd >= 0) {
+ rewind(state_f);
+ while (lockf(state_fd, F_LOCK, 0) < 0) {
+ if ((errno == EAGAIN) || (errno == EINTR))
+ continue;
+ fclose(state_f);
+ close(state_fd);
+ state_fd = -1;
+ }
+ }
+ if (state_fd >= 0) {
+ unsigned int cl;
+ unsigned long tv1, tv2;
+ int a;
+
+ if (fscanf(state_f, "clock: %04x tv: %lu %lu adj: %d\n",
+ &cl, &tv1, &tv2, &a) == 4) {
+ clock_seq = cl & 0x3FFF;
+ last.tv_sec = tv1;
+ last.tv_usec = tv2;
+ adjustment = a;
+ }
+ }
+
if ((last.tv_sec == 0) && (last.tv_usec == 0)) {
get_random_bytes(&clock_seq, sizeof(clock_seq));
clock_seq &= 0x3FFF;
last = tv;
last.tv_sec--;
}
+
+try_again:
+ gettimeofday(&tv, 0);
if ((tv.tv_sec < last.tv_sec) ||
((tv.tv_sec == last.tv_sec) &&
(tv.tv_usec < last.tv_usec))) {
clock_reg += ((unsigned long long) tv.tv_sec)*10000000;
clock_reg += (((unsigned long long) 0x01B21DD2) << 32) + 0x13814000;
+ if (num && (*num > 1)) {
+ adjustment += *num - 1;
+ last.tv_usec += adjustment / 10;
+ adjustment = adjustment % 10;
+ last.tv_sec += last.tv_usec / 1000000;
+ last.tv_usec = last.tv_usec % 1000000;
+ }
+
+ if (state_fd > 0) {
+ rewind(state_f);
+ ftruncate(state_fd, 0);
+ fprintf(state_f, "clock: %04x tv: %lu %lu adj: %d\n",
+ clock_seq, last.tv_sec, last.tv_usec, adjustment);
+ fflush(state_f);
+ rewind(state_f);
+ lockf(state_fd, F_ULOCK, 0);
+ }
+
*clock_high = clock_reg >> 32;
*clock_low = clock_reg;
*ret_clock_seq = clock_seq;
return 0;
}
-void uuid_generate_time(uuid_t out)
+static ssize_t read_all(int fd, char *buf, size_t count)
+{
+ ssize_t ret;
+ ssize_t c = 0;
+
+ memset(buf, 0, count);
+ while (count > 0) {
+ ret = read(fd, buf, count);
+ if (ret < 0) {
+ if ((errno == EAGAIN) || (errno == EINTR))
+ continue;
+ return -1;
+ }
+ count -= ret;
+ buf += ret;
+ c += ret;
+ }
+ return c;
+}
+
+
+/*
+ * Try using the uuidd daemon to generate the UUID
+ *
+ * Returns 0 on success, non-zero on failure.
+ */
+static int get_uuid_via_daemon(int op, uuid_t out, int *num)
+{
+ char op_buf[64];
+ int op_len;
+ int s;
+ ssize_t ret;
+ int32_t reply_len = 0, expected = 16;
+ struct sockaddr_un srv_addr;
+ static const char *uuidd_path = UUIDD_PATH;
+ static int access_ret = -2;
+
+ if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
+ return -1;
+
+ srv_addr.sun_family = AF_UNIX;
+ strcpy(srv_addr.sun_path, UUIDD_SOCKET_PATH);
+
+ if (connect(s, (const struct sockaddr *) &srv_addr,
+ sizeof(struct sockaddr_un)) < 0) {
+ if (access_ret == -2)
+ access_ret = access(uuidd_path, X_OK);
+ if (access_ret == 0) {
+ if (fork() == 0) {
+ execl(uuidd_path, "uuidd", "-qT", "300", 0);
+ exit(1);
+ }
+ usleep(500);
+ if (connect(s, (const struct sockaddr *) &srv_addr,
+ sizeof(struct sockaddr_un)) < 0)
+ goto fail;
+ } else
+ goto fail;
+ }
+ op_buf[0] = op;
+ op_len = 1;
+ if (op == UUIDD_OP_BULK_TIME_UUID) {
+ memcpy(op_buf+1, num, sizeof(num));
+ op_len += sizeof(num);
+ expected += sizeof(num);
+ }
+
+ ret = write(s, op_buf, op_len);
+ if (ret < 1)
+ goto fail;
+
+ ret = read_all(s, (char *) &reply_len, sizeof(reply_len));
+ if (ret < 0)
+ goto fail;
+
+ if (reply_len != expected)
+ goto fail;
+
+ ret = read_all(s, op_buf, reply_len);
+
+ if (op == UUIDD_OP_BULK_TIME_UUID)
+ memcpy(op_buf+16, num, sizeof(int));
+
+ memcpy(out, op_buf, 16);
+
+ close(s);
+ return ((ret == expected) ? 0 : -1);
+
+fail:
+ close(s);
+ return -1;
+}
+
+void uuid__generate_time(uuid_t out, int *num)
{
static unsigned char node_id[6];
static int has_init = 0;
}
has_init = 1;
}
- get_clock(&clock_mid, &uu.time_low, &uu.clock_seq);
+ get_clock(&clock_mid, &uu.time_low, &uu.clock_seq, num);
uu.clock_seq |= 0x8000;
uu.time_mid = (uint16_t) clock_mid;
uu.time_hi_and_version = ((clock_mid >> 16) & 0x0FFF) | 0x1000;
uuid_pack(&uu, out);
}
-void uuid_generate_random(uuid_t out)
+void uuid_generate_time(uuid_t out)
+{
+#ifdef TLS
+ THREAD_LOCAL int num = 0;
+ THREAD_LOCAL struct uuid uu;
+ THREAD_LOCAL time_t last_time = 0;
+ time_t now;
+
+ if (num > 0) {
+ now = time(0);
+ if (now > last_time+1)
+ num = 0;
+ }
+ if (num <= 0) {
+ num = 1000;
+ if (get_uuid_via_daemon(UUIDD_OP_BULK_TIME_UUID,
+ out, &num) == 0) {
+ last_time = time(0);
+ uuid_unpack(out, &uu);
+ num--;
+ return;
+ }
+ num = 0;
+ }
+ if (num > 0) {
+ uu.time_low++;
+ if (uu.time_low == 0) {
+ uu.time_mid++;
+ if (uu.time_mid == 0)
+ uu.time_hi_and_version++;
+ }
+ num--;
+ uuid_pack(&uu, out);
+ return;
+ }
+#else
+ if (get_uuid_via_daemon(UUIDD_OP_TIME_UUID, out, 0) == 0)
+ return;
+#endif
+
+ uuid__generate_time(out, 0);
+}
+
+
+void uuid__generate_random(uuid_t out, int *num)
{
uuid_t buf;
struct uuid uu;
+ int i, n;
- get_random_bytes(buf, sizeof(buf));
- uuid_unpack(buf, &uu);
+ if (!num || !*num)
+ n = 1;
+ else
+ n = *num;
- uu.clock_seq = (uu.clock_seq & 0x3FFF) | 0x8000;
- uu.time_hi_and_version = (uu.time_hi_and_version & 0x0FFF) | 0x4000;
- uuid_pack(&uu, out);
+ for (i = 0; i < n; i++) {
+ get_random_bytes(buf, sizeof(buf));
+ uuid_unpack(buf, &uu);
+
+ uu.clock_seq = (uu.clock_seq & 0x3FFF) | 0x8000;
+ uu.time_hi_and_version = (uu.time_hi_and_version & 0x0FFF)
+ | 0x4000;
+ uuid_pack(&uu, out);
+ out += sizeof(uuid_t);
+ }
}
+void uuid_generate_random(uuid_t out)
+{
+ int num = 1;
+ /* No real reason to use the daemon for random uuid's -- yet */
+
+ uuid__generate_random(out, &num);
+}
+
+
/*
* This is the generic front-end to uuid_generate_random and
* uuid_generate_time. It uses uuid_generate_random only if
--- /dev/null
+/*
+ * Definitions used by the uuidd daemon
+ *
+ * Copyright (C) 2007 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, and the entire permission notice in its entirety,
+ * including the disclaimer of warranties.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
+ * WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * %End-Header%
+ */
+
+#ifndef _UUID_UUIDD_H
+#define _UUID_UUIDD_H
+
+#define UUIDD_SOCKET_PATH "/var/run/uuidd/request"
+#define UUIDD_PIDFILE_PATH "/var/run/uuidd/uuidd.pid"
+#define UUIDD_PATH "/usr/sbin/uuidd"
+
+#define UUIDD_OP_GETPID 0
+#define UUIDD_OP_GET_MAXOP 1
+#define UUIDD_OP_TIME_UUID 2
+#define UUIDD_OP_RANDOM_UUID 3
+#define UUIDD_OP_BULK_TIME_UUID 4
+#define UUIDD_OP_BULK_RANDOM_UUID 5
+#define UUIDD_MAX_OP UUIDD_OP_BULK_RANDOM_UUID
+
+extern void uuid__generate_time(uuid_t out, int *num);
+extern void uuid__generate_random(uuid_t out, int *num);
+
+#endif /* _UUID_UUID_H */
@IMAGER_CMT@E2IMAGE_MAN= e2image.8
SPROGS= mke2fs badblocks tune2fs dumpe2fs blkid logsave \
- $(E2IMAGE_PROG) @FSCK_PROG@
-USPROGS= mklost+found filefrag
+ $(E2IMAGE_PROG) @FSCK_PROG@
+USPROGS= mklost+found filefrag uuidd
SMANPAGES= tune2fs.8 mklost+found.8 mke2fs.8 dumpe2fs.8 badblocks.8 \
e2label.8 findfs.8 blkid.8 $(E2IMAGE_MAN) \
- logsave.8 filefrag.8 @FSCK_MAN@
+ logsave.8 filefrag.8 uuidd.8 @FSCK_MAN@
FMANPAGES= mke2fs.conf.5
UPROGS= chattr lsattr uuidgen
CHATTR_OBJS= chattr.o
LSATTR_OBJS= lsattr.o
UUIDGEN_OBJS= uuidgen.o
+UUIDD_OBJS= uuidd.o
DUMPE2FS_OBJS= dumpe2fs.o
BADBLOCKS_OBJS= badblocks.o
E2IMAGE_OBJS= e2image.o
@echo " LD $@"
@$(CC) $(ALL_LDFLAGS) -o uuidgen $(UUIDGEN_OBJS) $(LIBUUID) $(LIBINTL)
+uuidd: $(UUIDD_OBJS) $(DEPLIBUUID)
+ @echo " LD $@"
+ @$(CC) $(ALL_LDFLAGS) -o uuidd $(UUIDD_OBJS) $(LIBUUID) $(LIBINTL)
+
dumpe2fs: $(DUMPE2FS_OBJS) $(DEPLIBS) $(DEPLIBS_E2P) $(DEPLIBUUID)
@echo " LD $@"
@$(CC) $(ALL_LDFLAGS) -o dumpe2fs $(DUMPE2FS_OBJS) $(LIBS) \
@echo " SUBST $@"
@$(SUBSTITUTE_UPTIME) $(srcdir)/logsave.8.in logsave.8
+uuidd.8: $(DEP_SUBSTITUTE) $(srcdir)/uuidd.8.in
+ @echo " SUBST $@"
+ @$(SUBSTITUTE_UPTIME) $(srcdir)/uuidd.8.in uuidd.8
+
chattr.1: $(DEP_SUBSTITUTE) $(srcdir)/chattr.1.in
@echo " SUBST $@"
@$(SUBSTITUTE_UPTIME) $(srcdir)/chattr.1.in chattr.1
$(DESTDIR)$(root_sbindir) $(DESTDIR)$(bindir) \
$(DESTDIR)$(man1dir) $(DESTDIR)$(man8dir) \
$(DESTDIR)$(man1dir) $(DESTDIR)$(man5dir) \
- $(DESTDIR)$(libdir) $(DESTDIR)/$(root_sysconfdir)
+ $(DESTDIR)$(libdir) $(DESTDIR)/$(root_sysconfdir) \
+ $(DESTDIR)/etc/init.d
install: all $(SMANPAGES) $(UMANPAGES) installdirs
@for i in $(SPROGS); do \
--- /dev/null
+.\" -*- nroff -*-
+.\" Copyright 2007 by Theodore Ts'o. All Rights Reserved.
+.\" This file may be copied under the terms of the GNU Public License.
+.\"
+.TH UUIDD 8 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@"
+.SH NAME
+uuidd \- UUID generation daemon
+.SH SYNOPSIS
+.B uuidd
+[
+.B \-d
+]
+[
+.B \-p
+.I pidfile
+]
+[
+.B \-s
+.I socketpath
+]
+[
+.B \-T
+.I timeout
+]
+
+.B uuidd
+[
+.B \-r
+|
+.B \-t
+]
+[
+.B \-n
+.I number
+]
+[
+.B \-s
+.I socketpath
+]
+
+.B uuidd \-k
+.SH DESCRIPTION
+The
+.B uuidd
+daemon is used by the UUID library to generate
+universally unique identifiers (UUIDs), especially time-based UUID's
+in a secure and guaranteed-unique fashion, even in the face of large
+numbers of threads trying to grab UUID's running on different CPU's.
+.SH OPTIONS
+.TP
+.B \-d
+Run
+.B uuidd
+in debugging mode. This prevents uuidd from running as a daemon.
+.TP
+.B \-k
+If a currently uuidd daemon is running, kill it.
+.TP
+.BI \-n " number"
+When issuing a test request to a running uuidd, request a bulk response
+of
+.I number
+UUID's.
+.TP
+.BI \-p " pidfile"
+Specify the pathname where the pid file should be written. By default,
+the pid file is written to /var/run/uuidd.pid.
+.TP
+.BI \-s " socketpath"
+Specify the pathname used for the unix-domain socket used by uuidd. By
+qdefault, the pathname used is /var/run/uuidd.sock. This is primarily
+for debugging purposes, since the pathname is hard-coded in the libuuid
+library.
+.TP
+.B \-r
+Test uuidd by trying to connect to a running uuidd daemon and
+request it to return a random-based UUID.
+.TP
+.B \-t
+Test uuidd by trying to connect to a running uuidd daemon and
+request it to return a time-based UUID.
+.TP
+.BI \-T " timeout"
+Specify a timeout for uuidd. If specified, then uuidd will exit after
+.I timeout
+seconds of inactivity.
+.SH AUTHOR
+The
+.B uuidd
+daemon was written by Theodore Ts'o <tytso@mit.edu>.
+.SH AVAILABILITY
+.B uuidd
+is part of libuuid from the e2fsprogs package and is available from
+http://e2fsprogs.sourceforge.net.
+.SH "SEE ALSO"
+.BR libuuid (3),
+.BR uuidgen (1)
--- /dev/null
+/*
+ * uuidd.c --- UUID-generation daemon
+ *
+ * Copyright (C) 2007 Theodore Ts'o
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+#include <stdio.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#include <unistd.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <fcntl.h>
+#include <signal.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int getopt(int argc, char * const argv[], const char *optstring);
+extern char *optarg;
+extern int optind;
+#endif
+#include "uuid/uuid.h"
+#include "uuid/uuidd.h"
+#include "nls-enable.h"
+
+#ifdef __GNUC__
+#define CODE_ATTR(x) __attribute__(x)
+#else
+#define CODE_ATTR(x)
+#endif
+
+static void usage(const char *progname)
+{
+ fprintf(stderr, _("Usage: %s [-d] [-p pidfile] [-s socketpath] "
+ "[-T timeout]\n"), progname);
+ fprintf(stderr, _(" %s [-r|t] [-n num] [-s socketpath]\n"),
+ progname);
+ fprintf(stderr, _(" %s -k\n"), progname);
+ exit(1);
+}
+
+static void create_daemon(const char *pidfile_path)
+{
+ pid_t pid;
+ uid_t euid;
+ FILE *f;
+
+ pid = fork();
+ if (pid == -1) {
+ perror("fork");
+ exit(1);
+ } else if (pid != 0) {
+ exit(0);
+ }
+
+ close(0);
+ close(1);
+ close(2);
+ open("/dev/null", O_RDWR);
+ open("/dev/null", O_RDWR);
+ open("/dev/null", O_RDWR);
+
+ chdir("/");
+ (void) setsid();
+ euid = geteuid();
+ (void) setreuid(euid, euid);
+
+ f = fopen(pidfile_path, "w");
+ if (f) {
+ fprintf(f, "%d\n", getpid());
+ fclose(f);
+ }
+}
+
+static int read_all(int fd, char *buf, size_t count)
+{
+ ssize_t ret;
+ int c = 0;
+
+ memset(buf, 0, count);
+ while (count > 0) {
+ ret = read(fd, buf, count);
+ if (ret < 0) {
+ if ((errno == EAGAIN) || (errno == EINTR))
+ continue;
+ return -1;
+ }
+ count -= ret;
+ buf += ret;
+ c += ret;
+ }
+ return c;
+}
+
+static const char *cleanup_pidfile, *cleanup_socket;
+
+static void terminate_intr(int signo CODE_ATTR((unused)))
+{
+ (void) unlink(cleanup_pidfile);
+ (void) unlink(cleanup_socket);
+ exit(0);
+}
+
+static void server_loop(const char *socket_path, int debug,
+ const char *pidfile_path,
+ int timeout, int quiet)
+{
+ struct sockaddr_un my_addr, from_addr;
+ unsigned char reply_buf[1024], *cp;
+ socklen_t fromlen;
+ int32_t reply_len = 0;
+ uuid_t uu;
+ mode_t save_umask;
+ char op, str[37];
+ int i, s, ns, len, num;
+
+ if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
+ if (!quiet)
+ fprintf(stderr, _("Couldn't create unix stream "
+ "socket: %s"), strerror(errno));
+ exit(1);
+ }
+
+ /*
+ * Create the address we will be binding to.
+ */
+ my_addr.sun_family = AF_UNIX;
+ strcpy(my_addr.sun_path, socket_path);
+ (void) unlink(socket_path);
+ save_umask = umask(0);
+ if (bind(s, (const struct sockaddr *) &my_addr,
+ sizeof(struct sockaddr_un)) < 0) {
+ if (!quiet)
+ fprintf(stderr,
+ _("Couldn't bind unix socket %s: %s\n"),
+ socket_path, strerror(errno));
+ exit(1);
+ }
+ (void) umask(save_umask);
+
+ if (listen(s, 5) < 0) {
+ if (!quiet)
+ fprintf(stderr, _("Couldn't listen on unix "
+ "socket %s: %s\n"), socket_path,
+ strerror(errno));
+ exit(1);
+ }
+
+ if (!debug) {
+ create_daemon(pidfile_path);
+ cleanup_pidfile = pidfile_path;
+ cleanup_socket = socket_path;
+ signal(SIGHUP, terminate_intr);
+ signal(SIGINT, terminate_intr);
+ signal(SIGPIPE, terminate_intr);
+ signal(SIGTERM, terminate_intr);
+ signal(SIGALRM, terminate_intr);
+ }
+ signal(SIGPIPE, SIG_IGN);
+
+ while (1) {
+ fromlen = sizeof(from_addr);
+ if (timeout > 0)
+ alarm(timeout);
+ ns = accept(s, (struct sockaddr *) &from_addr, &fromlen);
+ alarm(0);
+ if (ns < 0) {
+ if ((errno == EAGAIN) || (errno == EINTR))
+ continue;
+ perror("accept");
+ exit(1);
+ }
+ len = read(ns, &op, 1);
+ if (len != 1) {
+ if (len < 0)
+ perror("read");
+ else
+ printf(_("Error reading from client, "
+ "len = %d\n"), len);
+ goto shutdown_socket;
+ }
+ if ((op == 4) || (op == 5)) {
+ if (read_all(ns, (char *) &num, sizeof(num)) != 4)
+ goto shutdown_socket;
+ if (debug)
+ printf(_("operation %d, incoming num = %d\n"),
+ op, num);
+ } else if (debug)
+ printf("operation %d\n", op);
+
+ switch(op) {
+ case UUIDD_OP_GETPID:
+ sprintf((char *) reply_buf, "%d", getpid());
+ reply_len = strlen((char *) reply_buf)+1;
+ break;
+ case UUIDD_OP_GET_MAXOP:
+ sprintf((char *) reply_buf, "%d", UUIDD_MAX_OP);
+ reply_len = strlen((char *) reply_buf)+1;
+ break;
+ case UUIDD_OP_TIME_UUID:
+ num = 1;
+ uuid__generate_time(uu, &num);
+ if (debug) {
+ uuid_unparse(uu, str);
+ printf(_("Generated time UUID: %s\n"), str);
+ }
+ memcpy(reply_buf, uu, sizeof(uu));
+ reply_len = sizeof(uu);
+ break;
+ case UUIDD_OP_RANDOM_UUID:
+ num = 1;
+ uuid__generate_random(uu, &num);
+ if (debug) {
+ uuid_unparse(uu, str);
+ printf(_("Generated random UUID: %s\n"), str);
+ }
+ memcpy(reply_buf, uu, sizeof(uu));
+ reply_len = sizeof(uu);
+ break;
+ case UUIDD_OP_BULK_TIME_UUID:
+ uuid__generate_time(uu, &num);
+ if (debug) {
+ uuid_unparse(uu, str);
+ printf(_("Generated time UUID %s and %d "
+ "following\n"), str, num);
+ }
+ memcpy(reply_buf, uu, sizeof(uu));
+ reply_len = sizeof(uu);
+ memcpy(reply_buf+reply_len, &num, sizeof(num));
+ reply_len += sizeof(num);
+ break;
+ case UUIDD_OP_BULK_RANDOM_UUID:
+ if (num < 0)
+ num = 1;
+ if (num > 1000)
+ num = 1000;
+ if (num*16 > (int) (sizeof(reply_buf)-sizeof(num)))
+ num = (sizeof(reply_buf)-sizeof(num)) / 16;
+ uuid__generate_random(reply_buf+sizeof(num), &num);
+ if (debug) {
+ printf(_("Generated %d UUID's:\n"), num);
+ for (i=0, cp=reply_buf+sizeof(num);
+ i < num; i++, cp+=16) {
+ uuid_unparse(cp, str);
+ printf("\t%s\n", str);
+ }
+ }
+ reply_len = (num*16) + sizeof(num);
+ memcpy(reply_buf, &num, sizeof(num));
+ break;
+ default:
+ if (debug)
+ printf(_("Invalid operation %d\n"), op);
+ goto shutdown_socket;
+ }
+ write(ns, &reply_len, sizeof(reply_len));
+ write(ns, reply_buf, reply_len);
+ shutdown_socket:
+ close(ns);
+ }
+}
+
+static int call_daemon(const char *socket_path, int op, unsigned char *buf,
+ int buflen, int *num, const char **err_context)
+{
+ char op_buf[8];
+ int op_len;
+ int s;
+ ssize_t ret;
+ int32_t reply_len = 0;
+ struct sockaddr_un srv_addr;
+
+ if (((op == 4) || (op == 5)) && !num) {
+ if (err_context)
+ *err_context = _("bad arguments");
+ errno = EINVAL;
+ return -1;
+ }
+
+ if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
+ if (err_context)
+ *err_context = _("socket");
+ return -1;
+ }
+
+ srv_addr.sun_family = AF_UNIX;
+ strcpy(srv_addr.sun_path, socket_path);
+
+ if (connect(s, (const struct sockaddr *) &srv_addr,
+ sizeof(struct sockaddr_un)) < 0) {
+ if (err_context)
+ *err_context = _("connect");
+ close(s);
+ return -1;
+ }
+
+ if (op == 5) {
+ if ((*num)*16 > buflen-4)
+ *num = (buflen-4) / 16;
+ }
+ op_buf[0] = op;
+ op_len = 1;
+ if ((op == 4) || (op == 5)) {
+ memcpy(op_buf+1, num, sizeof(int));
+ op_len += sizeof(int);
+ }
+
+ ret = write(s, op_buf, op_len);
+ if (ret < op_len) {
+ if (err_context)
+ *err_context = _("write");
+ close(s);
+ return -1;
+ }
+
+ ret = read_all(s, (char *) &reply_len, sizeof(reply_len));
+ if (ret < 0) {
+ if (err_context)
+ *err_context = _("read count");
+ close(s);
+ return -1;
+ }
+ if (reply_len < 0 || reply_len > buflen) {
+ if (err_context)
+ *err_context = _("bad response length");
+ close(s);
+ return -1;
+ }
+ ret = read_all(s, (char *) buf, reply_len);
+
+ if ((ret > 0) && (op == 4)) {
+ if (reply_len >= (int) (16+sizeof(int)))
+ memcpy(buf+16, num, sizeof(int));
+ else
+ *num = -1;
+ }
+ if ((ret > 0) && (op == 5)) {
+ if (*num >= (int) sizeof(int))
+ memcpy(buf, num, sizeof(int));
+ else
+ *num = -1;
+ }
+
+ close(s);
+
+ return ret;
+}
+
+
+int main(int argc, char **argv)
+{
+ const char *socket_path = UUIDD_SOCKET_PATH;
+ const char *pidfile_path = UUIDD_PIDFILE_PATH;
+ const char *err_context;
+ unsigned char buf[1024], *cp;
+ char str[37], *tmp;
+ uuid_t uu;
+ uid_t uid;
+ gid_t gid;
+ int i, c, ret;
+ int debug = 0, do_type = 0, do_kill = 0, num = 0;
+ int timeout = 0, quiet = 0, drop_privs = 0;
+
+#ifdef ENABLE_NLS
+ setlocale(LC_MESSAGES, "");
+ setlocale(LC_CTYPE, "");
+ bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
+ textdomain(NLS_CAT_NAME);
+#endif
+
+ while ((c = getopt (argc, argv, "dkn:qp:s:tT:r")) != EOF) {
+ switch (c) {
+ case 'd':
+ debug++;
+ drop_privs++;
+ break;
+ case 'k':
+ do_kill++;
+ drop_privs++;
+ break;
+ case 'n':
+ num = strtol(optarg, &tmp, 0);
+ if ((num < 0) || *tmp) {
+ fprintf(stderr, _("Bad number: %s\n"), optarg);
+ exit(1);
+ }
+ case 'p':
+ pidfile_path = optarg;
+ drop_privs++;
+ break;
+ case 'q':
+ quiet++;
+ break;
+ case 's':
+ socket_path = optarg;
+ drop_privs++;
+ break;
+ case 't':
+ do_type = UUIDD_OP_TIME_UUID;
+ drop_privs++;
+ break;
+ case 'T':
+ timeout = strtol(optarg, &tmp, 0);
+ if ((timeout < 0) || *tmp) {
+ fprintf(stderr, _("Bad number: %s\n"), optarg);
+ exit(1);
+ }
+ break;
+ case 'r':
+ do_type = UUIDD_OP_RANDOM_UUID;
+ drop_privs++;
+ break;
+ default:
+ usage(argv[0]);
+ }
+ }
+ uid = getuid();
+ if (uid && drop_privs) {
+ gid = getgid();
+#ifdef HAVE_SETRESUID
+ setresuid(uid, uid, uid);
+#else
+ setreuid(uid, uid);
+#endif
+#ifdef HAVE_SETRESGID
+ setresgid(gid, gid, gid);
+#else
+ setregid(gid, gid);
+#endif
+ }
+ if (num && do_type) {
+ ret = call_daemon(socket_path, do_type+2, buf,
+ sizeof(buf), &num, &err_context);
+ if (ret < 0) {
+ printf(_("Error calling uuidd daemon (%s): %s\n"),
+ err_context, strerror(errno));
+ exit(1);
+ }
+ if (do_type == UUIDD_OP_TIME_UUID) {
+ if (ret != sizeof(uu) + sizeof(num))
+ goto unexpected_size;
+
+ uuid_unparse(buf, str);
+
+ printf(_("%s and subsequent %d UUID's\n"), str, num);
+ } else {
+ printf(_("List of UUID's:\n"));
+ cp = buf + 4;
+ if (ret != sizeof(num) + num*sizeof(uu))
+ goto unexpected_size;
+ for (i=0; i < num; i++, cp+=16) {
+ uuid_unparse(cp, str);
+ printf("\t%s\n", str);
+ }
+ }
+ exit(0);
+ }
+ if (do_type) {
+ ret = call_daemon(socket_path, do_type, (unsigned char *) &uu,
+ sizeof(uu), 0, &err_context);
+ if (ret < 0) {
+ printf(_("Error calling uuidd daemon (%s): %s\n"),
+ err_context, strerror(errno));
+ exit(1);
+ }
+ if (ret != sizeof(uu)) {
+ unexpected_size:
+ printf(_("Unexpected reply length from server %d\n"),
+ ret);
+ exit(1);
+ }
+ uuid_unparse(uu, str);
+
+ printf("%s\n", str);
+ exit(0);
+ }
+
+ /*
+ * Check to make sure there isn't another daemon running already
+ */
+ ret = call_daemon(socket_path, 0, buf, sizeof(buf), 0, 0);
+ if (ret > 0) {
+ if (do_kill && ((do_kill = atoi((char *) buf)) > 0)) {
+ ret = kill(do_kill, SIGTERM);
+ if (ret < 0) {
+ if (!quiet)
+ fprintf(stderr,
+ _("Couldn't kill uuidd running "
+ "at pid %d: %s\n"), do_kill,
+ strerror(errno));
+ exit(1);
+ }
+ if (!quiet)
+ printf(_("Killed uuidd running at pid %d\n"),
+ do_kill);
+ exit(0);
+ }
+ if (!quiet)
+ printf(_("uuidd daemon already running at pid %s\n"),
+ buf);
+ exit(1);
+ }
+ if (do_kill)
+ exit(0); /* Nothing to kill */
+
+ server_loop(socket_path, debug, pidfile_path, timeout, quiet);
+ return 0;
+}
--- /dev/null
+#! /bin/sh -e
+### BEGIN INIT INFO
+# Provides: uuidd
+# Required-Start: $time $local_fs
+# Required-Stop: $time $local_fs
+# Default-Start: 2 3 4 5
+# Default-Stop: 0 1 6
+# Short-Description: uuidd daemon
+# Description: Init script for the uuid generation daemon
+### END INIT INFO
+#
+# Author: "Theodore Ts'o" <tytso@mit.edu>
+#
+set -e
+
+PATH=/bin:/usr/bin:/sbin:/usr/sbin
+DAEMON=/usr/sbin/uuidd
+PIDFILE=/var/run/uuidd/uuidd.pid
+
+test -x $DAEMON || exit 0
+
+. /lib/lsb/init-functions
+
+case "$1" in
+ start)
+ log_daemon_msg "Starting uuid generator" "uuidd"
+ start_daemon -p $PIDFILE $DAEMON
+ log_end_msg $?
+ ;;
+ stop)
+ log_daemon_msg "Stopping uuidd generator" "uuidd"
+ killproc -p $PIDFILE $DAEMON
+ log_end_msg $?
+ ;;
+ status)
+ if pidofproc -p $PIDFILE $DAEMON >& /dev/null ; then
+ echo "$DAEMON is running";
+ exit 0;
+ else
+ echo "$DAEMON is NOT running";
+ if test -f /var/run/uuidd.pid; then exit 2; fi
+ exit 3;
+ fi
+ ;;
+ force-reload|restart)
+ $0 stop
+ $0 start
+ ;;
+ *)
+ echo "Usage: /etc/init.d/uuidd {start|stop|restart|force-reload}"
+ exit 1
+ ;;
+esac
+
+exit 0
git://git.whamcloud.com / tools / e2fsprogs.git / commitdiff