mirror of
https://github.com/freebsd/freebsd-src
synced 2024-10-15 12:54:27 +00:00
Introduce the /libexec/freebsd-version script, which is intended to be
used by auditing tools to determine the userland patch level when it differs from what `uname -r` reports. This can happen when the system is kept up-to-date using freebsd-update and the last SA did not touch the kernel, or when a new kernel has been installed but the system has not yet rebooted. Approved by: re (glebius)
This commit is contained in:
Dag-Erling Smørgrav
parent
eafc73a8a9
commit
e5abbf165e
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=256106
|
|
@ -8,6 +8,7 @@ SUBDIR= ${_atf} \
|
|||
bootpd \
|
||||
${_comsat} \
|
||||
fingerd \
|
||||
freebsd-version \
|
||||
ftpd \
|
||||
getty \
|
||||
${_mail.local} \
|
||||
|
|
|
|||
21
libexec/freebsd-version/Makefile
Normal file
21
libexec/freebsd-version/Makefile
Normal file
|
|
@ -0,0 +1,21 @@
|
|||
# $FreeBSD$
|
||||
|
||||
SCRIPTS = freebsd-version
|
||||
MAN = freebsd-version.1
|
||||
BINDIR = /libexec
|
||||
CLEANFILES = freebsd-version.sh
|
||||
NEWVERS = ${.CURDIR}/../../sys/conf/newvers.sh
|
||||
|
||||
freebsd-version.sh.in: ${NEWVERS}
|
||||
freebsd-version.sh: freebsd-version.sh.in
|
||||
eval $$(egrep '^(TYPE|REVISION|BRANCH)=' ${NEWVERS}) ; \
|
||||
if ! sed -e "\
|
||||
s/@@TYPE@@/$${TYPE}/g; \
|
||||
s/@@REVISION@@/$${REVISION}/g; \
|
||||
s/@@BRANCH@@/$${BRANCH}/g; \
|
||||
" ${.ALLSRC} >${.TARGET} ; then \
|
||||
rm -f ${.TARGET} ; \
|
||||
exit 1 ; \
|
||||
fi
|
||||
|
||||
.include <bsd.prog.mk>
|
||||
124
libexec/freebsd-version/freebsd-version.1
Normal file
124
libexec/freebsd-version/freebsd-version.1
Normal file
|
|
@ -0,0 +1,124 @@
|
|||
.\"-
|
||||
.\" Copyright (c) 2013 Dag-Erling Smørgrav
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" 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, this list of conditions and the following disclaimer.
|
||||
.\" 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.
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 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 ADVISED OF THE POSSIBILITY OF
|
||||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\" $FreeBSD$
|
||||
.\"
|
||||
.Dd October 5, 2013
|
||||
.Dt FREEBSD-VERSION 1
|
||||
.Os
|
||||
.Sh NAME
|
||||
.Nm freebsd-version
|
||||
.Nd print the version and patch level of the installed system
|
||||
.Sh SYNOPSIS
|
||||
.Nm
|
||||
.Op Fl ku
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Nm
|
||||
utility makes a best effort to determine the version and patch level
|
||||
of the installed kernel and / or userland.
|
||||
.Pp
|
||||
The following options are available:
|
||||
.Bl -tag -width Fl
|
||||
.It Fl k
|
||||
Print the version and patch level of the installed kernel.
|
||||
Unlike
|
||||
.Xr uname 1 ,
|
||||
if a new kernel has been installed but the system has not yet
|
||||
rebooted,
|
||||
.Nm
|
||||
will print the version and patch level of the new kernel.
|
||||
.It Fl u
|
||||
Print the version and patch level of the installed userland.
|
||||
These are hardcoded into
|
||||
.Nm
|
||||
during the build.
|
||||
.El
|
||||
.Pp
|
||||
If both
|
||||
.Fl k
|
||||
and
|
||||
.Fl u
|
||||
are specified,
|
||||
.Nm
|
||||
will print the kernel version first, then the userland version, on
|
||||
separate lines.
|
||||
If neither is specified, it will print the userland version only.
|
||||
.Sh IMPLEMENTATION NOTES
|
||||
The
|
||||
.Nm
|
||||
utility should provide the correct answer in the vast majority of
|
||||
cases, including on systems kept up-to-date using
|
||||
.Xr freebsd-update 8 ,
|
||||
which does not update the kernel version unless the kernel itself was
|
||||
affected by the latest patch.
|
||||
.Pp
|
||||
To determine the name (and hence the location) of a custom kernel, the
|
||||
.Nm
|
||||
utility will attempt to parse
|
||||
.Pa /boot/defaults/loader.conf
|
||||
and
|
||||
.Pa /boot/loader.conf ,
|
||||
looking for definitions of the
|
||||
.Va kernel
|
||||
and
|
||||
.Va bootfile
|
||||
variables, both with a default value of
|
||||
.Dq kernel .
|
||||
It may however fail to locate the correct kernel if either or both of
|
||||
these variables are defined in a non-standard location, such as in
|
||||
.Pa /boot/loader.rc .
|
||||
.Sh ENVIRONMENT
|
||||
.Bl -tag -width ROOT
|
||||
.It Ev ROOT
|
||||
Path to the root of the filesystem in which to look for
|
||||
.Pa loader.conf
|
||||
and the kernel.
|
||||
.El
|
||||
.Sh EXAMPLES
|
||||
To determine the version of the currently running userland:
|
||||
.Bd -literal -offset indent
|
||||
/libexec/freebsd-version -u
|
||||
.Ed
|
||||
.Pp
|
||||
To inspect a system being repaired using a live CD:
|
||||
.Bd -literal -offset indent
|
||||
mount -rt ufs /dev/ada0p2 /mnt
|
||||
env ROOT=/mnt /mnt/libexec/freebsd-version -ku
|
||||
.Ed
|
||||
.Sh SEE ALSO
|
||||
.Xr uname 1 ,
|
||||
.Xr loader.conf 5 ,
|
||||
.Xr freebsd-version 8
|
||||
.Sh HISTORY
|
||||
The
|
||||
.Nm
|
||||
command appeared in
|
||||
.Fx 10.0 .
|
||||
.Sh AUTHORS
|
||||
The
|
||||
.Nm
|
||||
utility and this manual page were written by
|
||||
.An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org .
|
||||
126
libexec/freebsd-version/freebsd-version.sh.in
Normal file
126
libexec/freebsd-version/freebsd-version.sh.in
Normal file
|
|
@ -0,0 +1,126 @@
|
|||
#!/bin/sh
|
||||
#-
|
||||
# Copyright (c) 2013 Dag-Erling Smørgrav
|
||||
# All rights reserved.
|
||||
#
|
||||
# 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, this list of conditions and the following disclaimer.
|
||||
# 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.
|
||||
#
|
||||
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 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 ADVISED OF THE POSSIBILITY OF
|
||||
# SUCH DAMAGE.
|
||||
#
|
||||
# $FreeBSD$
|
||||
#
|
||||
|
||||
set -e
|
||||
|
||||
USERLAND_VERSION="@@REVISION@@-@@BRANCH@@"
|
||||
|
||||
: ${ROOT:=}
|
||||
: ${LOADER_DIR:=$ROOT/boot}
|
||||
: ${LOADER_CONF_FILES:=$LOADER_DIR/defaults/loader.conf $LOADER_DIR/loader.conf $LOADER_DIR/loader.conf.local}
|
||||
LOADER_RE1='^\([A-Z_a-z][0-9A-Z_a-z]*=[-./0-9A-Z_a-z]\{1,\}\).*$'
|
||||
LOADER_RE2='^\([A-Z_a-z][0-9A-Z_a-z]*="[-./0-9A-Z_a-z]\{1,\}"\).*$'
|
||||
KERNEL_RE='^@(#)@@TYPE@@ \([-.0-9A-Za-z]\{1,\}\) .*$'
|
||||
|
||||
progname=$(basename $0)
|
||||
|
||||
#
|
||||
# Print an error message and exit.
|
||||
#
|
||||
error() {
|
||||
echo "$progname: $*" >&2
|
||||
exit 1
|
||||
}
|
||||
|
||||
#
|
||||
# Try to get the name of the installed kernel from loader.conf and
|
||||
# return the full path. If loader.conf does not exist or we could not
|
||||
# read it, return the path to the default kernel.
|
||||
#
|
||||
kernel_file() {
|
||||
eval $(sed -n "s/$LOADER_RE1/\\1;/p; s/$LOADER_RE2/\\1;/p" \
|
||||
$LOADER_CONF_FILES 2>/dev/null)
|
||||
echo "$LOADER_DIR/${kernel:-kernel}/${bootfile:-kernel}"
|
||||
}
|
||||
|
||||
#
|
||||
# Extract the kernel version from the installed kernel.
|
||||
#
|
||||
kernel_version() {
|
||||
kernfile=$(kernel_file)
|
||||
if [ ! -f "$kernfile" -o ! -r "$kernfile" ] ; then
|
||||
error "unable to locate kernel"
|
||||
fi
|
||||
strings "$kernfile" | sed -n "s/$KERNEL_RE/\\1/p"
|
||||
}
|
||||
|
||||
#
|
||||
# Print the hardcoded userland version.
|
||||
#
|
||||
userland_version() {
|
||||
echo $USERLAND_VERSION
|
||||
}
|
||||
|
||||
#
|
||||
# Print a usage string and exit.
|
||||
#
|
||||
usage() {
|
||||
echo "usage: $progname [-ku]\n" >&2
|
||||
exit 1
|
||||
}
|
||||
|
||||
#
|
||||
# Main program.
|
||||
#
|
||||
main() {
|
||||
# parse command-line arguments
|
||||
while getopts "ku" option ; do
|
||||
case $option in
|
||||
k)
|
||||
opt_k=1
|
||||
;;
|
||||
u)
|
||||
opt_u=1
|
||||
;;
|
||||
*)
|
||||
usage
|
||||
;;
|
||||
esac
|
||||
done
|
||||
if [ $OPTIND -le $# ] ; then
|
||||
usage
|
||||
fi
|
||||
|
||||
# default is -u
|
||||
if [ $((opt_k + opt_u)) -eq 0 ] ; then
|
||||
opt_u=1
|
||||
fi
|
||||
|
||||
# print kernel version
|
||||
if [ $opt_k ] ; then
|
||||
kernel_version
|
||||
fi
|
||||
|
||||
# print userland version
|
||||
if [ $opt_u ] ; then
|
||||
userland_version
|
||||
fi
|
||||
}
|
||||
|
||||
main "$@"
|
||||
Loading…
Reference in a new issue