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2c434b2cc3
"SMP-GENERIC" (i386) or "GENERIC" (amd64). FreeBSD 6.2 Errata candidate. MFC after: 3 days Pointy hat to: cperciva
1963 lines
50 KiB
Bash
1963 lines
50 KiB
Bash
#!/bin/sh
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#-
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# Copyright 2004-2006 Colin Percival
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# All rights reserved
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted providing that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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# $FreeBSD$
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#### Usage function -- called from command-line handling code.
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# Usage instructions. Options not listed:
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# --debug -- don't filter output from utilities
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# --no-stats -- don't show progress statistics while fetching files
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usage () {
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cat <<EOF
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usage: `basename $0` [options] command ... [path]
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Options:
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-b basedir -- Operate on a system mounted at basedir
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(default: /)
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-d workdir -- Store working files in workdir
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(default: /var/db/freebsd-update/)
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-f conffile -- Read configuration options from conffile
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(default: /etc/freebsd-update.conf)
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-k KEY -- Trust an RSA key with SHA256 hash of KEY
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-s server -- Server from which to fetch updates
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(default: update.FreeBSD.org)
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-t address -- Mail output of cron command, if any, to address
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(default: root)
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Commands:
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fetch -- Fetch updates from server
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cron -- Sleep rand(3600) seconds, fetch updates, and send an
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email if updates were found
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install -- Install downloaded updates
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rollback -- Uninstall most recently installed updates
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EOF
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exit 0
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}
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#### Configuration processing functions
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#-
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# Configuration options are set in the following order of priority:
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# 1. Command line options
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# 2. Configuration file options
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# 3. Default options
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# In addition, certain options (e.g., IgnorePaths) can be specified multiple
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# times and (as long as these are all in the same place, e.g., inside the
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# configuration file) they will accumulate. Finally, because the path to the
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# configuration file can be specified at the command line, the entire command
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# line must be processed before we start reading the configuration file.
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#
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# Sound like a mess? It is. Here's how we handle this:
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# 1. Initialize CONFFILE and all the options to "".
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# 2. Process the command line. Throw an error if a non-accumulating option
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# is specified twice.
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# 3. If CONFFILE is "", set CONFFILE to /etc/freebsd-update.conf .
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# 4. For all the configuration options X, set X_saved to X.
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# 5. Initialize all the options to "".
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# 6. Read CONFFILE line by line, parsing options.
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# 7. For each configuration option X, set X to X_saved iff X_saved is not "".
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# 8. Repeat steps 4-7, except setting options to their default values at (6).
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CONFIGOPTIONS="KEYPRINT WORKDIR SERVERNAME MAILTO ALLOWADD ALLOWDELETE
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KEEPMODIFIEDMETADATA COMPONENTS IGNOREPATHS UPDATEIFUNMODIFIED
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BASEDIR VERBOSELEVEL"
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# Set all the configuration options to "".
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nullconfig () {
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for X in ${CONFIGOPTIONS}; do
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eval ${X}=""
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done
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}
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# For each configuration option X, set X_saved to X.
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saveconfig () {
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for X in ${CONFIGOPTIONS}; do
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eval ${X}_saved=\$${X}
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done
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}
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# For each configuration option X, set X to X_saved if X_saved is not "".
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mergeconfig () {
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for X in ${CONFIGOPTIONS}; do
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eval _=\$${X}_saved
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if ! [ -z "${_}" ]; then
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eval ${X}=\$${X}_saved
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fi
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done
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}
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# Set the trusted keyprint.
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config_KeyPrint () {
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if [ -z ${KEYPRINT} ]; then
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KEYPRINT=$1
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else
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return 1
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fi
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}
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# Set the working directory.
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config_WorkDir () {
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if [ -z ${WORKDIR} ]; then
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WORKDIR=$1
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else
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return 1
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fi
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}
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# Set the name of the server (pool) from which to fetch updates
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config_ServerName () {
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if [ -z ${SERVERNAME} ]; then
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SERVERNAME=$1
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else
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return 1
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fi
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}
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# Set the address to which 'cron' output will be mailed.
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config_MailTo () {
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if [ -z ${MAILTO} ]; then
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MAILTO=$1
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else
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return 1
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fi
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}
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# Set whether FreeBSD Update is allowed to add files (or directories, or
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# symlinks) which did not previously exist.
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config_AllowAdd () {
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if [ -z ${ALLOWADD} ]; then
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case $1 in
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[Yy][Ee][Ss])
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ALLOWADD=yes
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;;
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[Nn][Oo])
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ALLOWADD=no
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;;
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*)
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return 1
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;;
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esac
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else
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return 1
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fi
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}
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# Set whether FreeBSD Update is allowed to remove files/directories/symlinks.
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config_AllowDelete () {
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if [ -z ${ALLOWDELETE} ]; then
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case $1 in
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[Yy][Ee][Ss])
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ALLOWDELETE=yes
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;;
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[Nn][Oo])
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ALLOWDELETE=no
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;;
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*)
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return 1
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;;
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esac
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else
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return 1
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fi
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}
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# Set whether FreeBSD Update should keep existing inode ownership,
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# permissions, and flags, in the event that they have been modified locally
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# after the release.
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config_KeepModifiedMetadata () {
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if [ -z ${KEEPMODIFIEDMETADATA} ]; then
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case $1 in
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[Yy][Ee][Ss])
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KEEPMODIFIEDMETADATA=yes
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;;
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[Nn][Oo])
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KEEPMODIFIEDMETADATA=no
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;;
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*)
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return 1
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;;
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esac
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else
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return 1
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fi
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}
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# Add to the list of components which should be kept updated.
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config_Components () {
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for C in $@; do
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COMPONENTS="${COMPONENTS} ${C}"
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done
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}
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# Add to the list of paths under which updates will be ignored.
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config_IgnorePaths () {
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for C in $@; do
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IGNOREPATHS="${IGNOREPATHS} ${C}"
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done
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}
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# Add to the list of paths within which updates will be performed only if the
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# file on disk has not been modified locally.
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config_UpdateIfUnmodified () {
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for C in $@; do
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UPDATEIFUNMODIFIED="${UPDATEIFUNMODIFIED} ${C}"
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done
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}
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# Work on a FreeBSD installation mounted under $1
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config_BaseDir () {
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if [ -z ${BASEDIR} ]; then
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BASEDIR=$1
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else
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return 1
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fi
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}
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# Define what happens to output of utilities
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config_VerboseLevel () {
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if [ -z ${VERBOSELEVEL} ]; then
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case $1 in
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[Dd][Ee][Bb][Uu][Gg])
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VERBOSELEVEL=debug
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;;
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[Nn][Oo][Ss][Tt][Aa][Tt][Ss])
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VERBOSELEVEL=nostats
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;;
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[Ss][Tt][Aa][Tt][Ss])
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VERBOSELEVEL=stats
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;;
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*)
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return 1
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;;
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esac
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else
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return 1
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fi
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}
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# Handle one line of configuration
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configline () {
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if [ $# -eq 0 ]; then
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return
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fi
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OPT=$1
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shift
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config_${OPT} $@
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}
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#### Parameter handling functions.
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# Initialize parameters to null, just in case they're
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# set in the environment.
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init_params () {
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# Configration settings
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nullconfig
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# No configuration file set yet
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CONFFILE=""
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# No commands specified yet
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COMMANDS=""
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}
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# Parse the command line
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parse_cmdline () {
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while [ $# -gt 0 ]; do
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case "$1" in
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# Location of configuration file
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-f)
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if [ $# -eq 1 ]; then usage; fi
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if [ ! -z "${CONFFILE}" ]; then usage; fi
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shift; CONFFILE="$1"
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;;
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# Configuration file equivalents
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-b)
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if [ $# -eq 1 ]; then usage; fi; shift
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config_BaseDir $1 || usage
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;;
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-d)
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if [ $# -eq 1 ]; then usage; fi; shift
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config_WorkDir $1 || usage
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;;
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-k)
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if [ $# -eq 1 ]; then usage; fi; shift
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config_KeyPrint $1 || usage
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;;
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-s)
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if [ $# -eq 1 ]; then usage; fi; shift
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config_ServerName $1 || usage
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;;
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-t)
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if [ $# -eq 1 ]; then usage; fi; shift
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config_MailTo $1 || usage
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;;
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-v)
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if [ $# -eq 1 ]; then usage; fi; shift
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config_VerboseLevel $1 || usage
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;;
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# Aliases for "-v debug" and "-v nostats"
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--debug)
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config_VerboseLevel debug || usage
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;;
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--no-stats)
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config_VerboseLevel nostats || usage
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;;
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# Commands
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cron | fetch | install | rollback)
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COMMANDS="${COMMANDS} $1"
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;;
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# Anything else is an error
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*)
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usage
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;;
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esac
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shift
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done
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# Make sure we have at least one command
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if [ -z "${COMMANDS}" ]; then
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usage
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fi
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}
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# Parse the configuration file
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parse_conffile () {
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# If a configuration file was specified on the command line, check
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# that it exists and is readable.
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if [ ! -z "${CONFFILE}" ] && [ ! -r "${CONFFILE}" ]; then
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echo -n "File does not exist "
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echo -n "or is not readable: "
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echo ${CONFFILE}
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exit 1
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fi
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# If a configuration file was not specified on the command line,
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# use the default configuration file path. If that default does
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# not exist, give up looking for any configuration.
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if [ -z "${CONFFILE}" ]; then
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CONFFILE="/etc/freebsd-update.conf"
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if [ ! -r "${CONFFILE}" ]; then
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return
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fi
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fi
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# Save the configuration options specified on the command line, and
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# clear all the options in preparation for reading the config file.
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saveconfig
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nullconfig
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# Read the configuration file. Anything after the first '#' is
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# ignored, and any blank lines are ignored.
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L=0
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while read LINE; do
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L=$(($L + 1))
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LINEX=`echo "${LINE}" | cut -f 1 -d '#'`
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if ! configline ${LINEX}; then
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echo "Error processing configuration file, line $L:"
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echo "==> ${LINE}"
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exit 1
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fi
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done < ${CONFFILE}
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# Merge the settings read from the configuration file with those
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# provided at the command line.
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mergeconfig
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}
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# Provide some default parameters
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default_params () {
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# Save any parameters already configured, and clear the slate
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saveconfig
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nullconfig
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# Default configurations
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config_WorkDir /var/db/freebsd-update
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config_MailTo root
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config_AllowAdd yes
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config_AllowDelete yes
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config_KeepModifiedMetadata yes
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config_BaseDir /
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config_VerboseLevel stats
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# Merge these defaults into the earlier-configured settings
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mergeconfig
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}
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# Set utility output filtering options, based on ${VERBOSELEVEL}
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fetch_setup_verboselevel () {
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case ${VERBOSELEVEL} in
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debug)
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QUIETREDIR="/dev/stderr"
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QUIETFLAG=" "
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STATSREDIR="/dev/stderr"
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DDSTATS=".."
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XARGST="-t"
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NDEBUG=" "
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;;
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nostats)
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QUIETREDIR=""
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QUIETFLAG=""
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STATSREDIR="/dev/null"
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DDSTATS=".."
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XARGST=""
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NDEBUG=""
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;;
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stats)
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QUIETREDIR="/dev/null"
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QUIETFLAG="-q"
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STATSREDIR="/dev/stdout"
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DDSTATS=""
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XARGST=""
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NDEBUG="-n"
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;;
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esac
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}
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# Perform sanity checks and set some final parameters
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# in preparation for fetching files. Figure out which
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# set of updates should be downloaded: If the user is
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# running *-p[0-9]+, strip off the last part; if the
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# user is running -SECURITY, call it -RELEASE. Chdir
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# into the working directory.
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fetch_check_params () {
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export HTTP_USER_AGENT="freebsd-update (${COMMAND}, `uname -r`)"
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_SERVERNAME_z=\
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"SERVERNAME must be given via command line or configuration file."
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_KEYPRINT_z="Key must be given via -k option or configuration file."
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_KEYPRINT_bad="Invalid key fingerprint: "
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_WORKDIR_bad="Directory does not exist or is not writable: "
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if [ -z "${SERVERNAME}" ]; then
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echo -n "`basename $0`: "
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echo "${_SERVERNAME_z}"
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exit 1
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fi
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if [ -z "${KEYPRINT}" ]; then
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echo -n "`basename $0`: "
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echo "${_KEYPRINT_z}"
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exit 1
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fi
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if ! echo "${KEYPRINT}" | grep -qE "^[0-9a-f]{64}$"; then
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echo -n "`basename $0`: "
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echo -n "${_KEYPRINT_bad}"
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echo ${KEYPRINT}
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exit 1
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fi
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if ! [ -d "${WORKDIR}" -a -w "${WORKDIR}" ]; then
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echo -n "`basename $0`: "
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echo -n "${_WORKDIR_bad}"
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echo ${WORKDIR}
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exit 1
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fi
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cd ${WORKDIR} || exit 1
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# Generate release number. The s/SECURITY/RELEASE/ bit exists
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# to provide an upgrade path for FreeBSD Update 1.x users, since
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# the kernels provided by FreeBSD Update 1.x are always labelled
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# as X.Y-SECURITY.
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RELNUM=`uname -r |
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sed -E 's,-p[0-9]+,,' |
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sed -E 's,-SECURITY,-RELEASE,'`
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ARCH=`uname -m`
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FETCHDIR=${RELNUM}/${ARCH}
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# Figure out what directory contains the running kernel
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BOOTFILE=`sysctl -n kern.bootfile`
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KERNELDIR=${BOOTFILE%/kernel}
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if ! [ -d ${KERNELDIR} ]; then
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echo "Cannot identify running kernel"
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exit 1
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fi
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# Figure out what kernel configuration is running. We start with
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# the output of `uname -i`, and then make the following adjustments:
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# 1. Replace "SMP-GENERIC" with "SMP". Why the SMP kernel config
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# file says "ident SMP-GENERIC", I don't know...
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# 2. If the kernel claims to be GENERIC _and_ ${ARCH} is "amd64"
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# _and_ `sysctl kern.version` contains a line which ends "/SMP", then
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# we're running an SMP kernel. This mis-identification is a bug
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# which was fixed in 6.2-STABLE.
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KERNCONF=`uname -i`
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if [ ${KERNCONF} = "SMP-GENERIC" ]; then
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KERNCONF=SMP
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fi
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if [ ${KERNCONF} = "GENERIC" ] && [ ${ARCH} = "amd64" ]; then
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if sysctl kern.version | grep -qE '/SMP$'; then
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KERNCONF=SMP
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fi
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fi
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# Define some paths
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BSPATCH=/usr/bin/bspatch
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SHA256=/sbin/sha256
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PHTTPGET=/usr/libexec/phttpget
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# Set up variables relating to VERBOSELEVEL
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fetch_setup_verboselevel
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# Construct a unique name from ${BASEDIR}
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BDHASH=`echo ${BASEDIR} | sha256 -q`
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}
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# Perform sanity checks and set some final parameters in
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# preparation for installing updates.
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install_check_params () {
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# Check that we are root. All sorts of things won't work otherwise.
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if [ `id -u` != 0 ]; then
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echo "You must be root to run this."
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exit 1
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fi
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# Check that we have a working directory
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_WORKDIR_bad="Directory does not exist or is not writable: "
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if ! [ -d "${WORKDIR}" -a -w "${WORKDIR}" ]; then
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echo -n "`basename $0`: "
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echo -n "${_WORKDIR_bad}"
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echo ${WORKDIR}
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exit 1
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fi
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cd ${WORKDIR} || exit 1
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# Construct a unique name from ${BASEDIR}
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BDHASH=`echo ${BASEDIR} | sha256 -q`
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# Check that we have updates ready to install
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if ! [ -L ${BDHASH}-install ]; then
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echo "No updates are available to install."
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echo "Run '$0 fetch' first."
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exit 1
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fi
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if ! [ -f ${BDHASH}-install/INDEX-OLD ] ||
|
|
! [ -f ${BDHASH}-install/INDEX-NEW ]; then
|
|
echo "Update manifest is corrupt -- this should never happen."
|
|
echo "Re-run '$0 fetch'."
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
# Perform sanity checks and set some final parameters in
|
|
# preparation for UNinstalling updates.
|
|
rollback_check_params () {
|
|
# Check that we are root. All sorts of things won't work otherwise.
|
|
if [ `id -u` != 0 ]; then
|
|
echo "You must be root to run this."
|
|
exit 1
|
|
fi
|
|
|
|
# Check that we have a working directory
|
|
_WORKDIR_bad="Directory does not exist or is not writable: "
|
|
if ! [ -d "${WORKDIR}" -a -w "${WORKDIR}" ]; then
|
|
echo -n "`basename $0`: "
|
|
echo -n "${_WORKDIR_bad}"
|
|
echo ${WORKDIR}
|
|
exit 1
|
|
fi
|
|
cd ${WORKDIR} || exit 1
|
|
|
|
# Construct a unique name from ${BASEDIR}
|
|
BDHASH=`echo ${BASEDIR} | sha256 -q`
|
|
|
|
# Check that we have updates ready to rollback
|
|
if ! [ -L ${BDHASH}-rollback ]; then
|
|
echo "No rollback directory found."
|
|
exit 1
|
|
fi
|
|
if ! [ -f ${BDHASH}-rollback/INDEX-OLD ] ||
|
|
! [ -f ${BDHASH}-rollback/INDEX-NEW ]; then
|
|
echo "Update manifest is corrupt -- this should never happen."
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
#### Core functionality -- the actual work gets done here
|
|
|
|
# Use an SRV query to pick a server. If the SRV query doesn't provide
|
|
# a useful answer, use the server name specified by the user.
|
|
# Put another way... look up _http._tcp.${SERVERNAME} and pick a server
|
|
# from that; or if no servers are returned, use ${SERVERNAME}.
|
|
# This allows a user to specify "portsnap.freebsd.org" (in which case
|
|
# portsnap will select one of the mirrors) or "portsnap5.tld.freebsd.org"
|
|
# (in which case portsnap will use that particular server, since there
|
|
# won't be an SRV entry for that name).
|
|
#
|
|
# We ignore the Port field, since we are always going to use port 80.
|
|
|
|
# Fetch the mirror list, but do not pick a mirror yet. Returns 1 if
|
|
# no mirrors are available for any reason.
|
|
fetch_pick_server_init () {
|
|
: > serverlist_tried
|
|
|
|
# Check that host(1) exists (i.e., that the system wasn't built with the
|
|
# WITHOUT_BIND set) and don't try to find a mirror if it doesn't exist.
|
|
if ! which -s host; then
|
|
: > serverlist_full
|
|
return 1
|
|
fi
|
|
|
|
echo -n "Looking up ${SERVERNAME} mirrors... "
|
|
|
|
# Issue the SRV query and pull out the Priority, Weight, and Target fields.
|
|
# BIND 9 prints "$name has SRV record ..." while BIND 8 prints
|
|
# "$name server selection ..."; we allow either format.
|
|
MLIST="_http._tcp.${SERVERNAME}"
|
|
host -t srv "${MLIST}" |
|
|
sed -nE "s/${MLIST} (has SRV record|server selection) //p" |
|
|
cut -f 1,2,4 -d ' ' |
|
|
sed -e 's/\.$//' |
|
|
sort > serverlist_full
|
|
|
|
# If no records, give up -- we'll just use the server name we were given.
|
|
if [ `wc -l < serverlist_full` -eq 0 ]; then
|
|
echo "none found."
|
|
return 1
|
|
fi
|
|
|
|
# Report how many mirrors we found.
|
|
echo `wc -l < serverlist_full` "mirrors found."
|
|
|
|
# Generate a random seed for use in picking mirrors. If HTTP_PROXY
|
|
# is set, this will be used to generate the seed; otherwise, the seed
|
|
# will be random.
|
|
if [ -n "${HTTP_PROXY}${http_proxy}" ]; then
|
|
RANDVALUE=`sha256 -qs "${HTTP_PROXY}${http_proxy}" |
|
|
tr -d 'a-f' |
|
|
cut -c 1-9`
|
|
else
|
|
RANDVALUE=`jot -r 1 0 999999999`
|
|
fi
|
|
}
|
|
|
|
# Pick a mirror. Returns 1 if we have run out of mirrors to try.
|
|
fetch_pick_server () {
|
|
# Generate a list of not-yet-tried mirrors
|
|
sort serverlist_tried |
|
|
comm -23 serverlist_full - > serverlist
|
|
|
|
# Have we run out of mirrors?
|
|
if [ `wc -l < serverlist` -eq 0 ]; then
|
|
echo "No mirrors remaining, giving up."
|
|
return 1
|
|
fi
|
|
|
|
# Find the highest priority level (lowest numeric value).
|
|
SRV_PRIORITY=`cut -f 1 -d ' ' serverlist | sort -n | head -1`
|
|
|
|
# Add up the weights of the response lines at that priority level.
|
|
SRV_WSUM=0;
|
|
while read X; do
|
|
case "$X" in
|
|
${SRV_PRIORITY}\ *)
|
|
SRV_W=`echo $X | cut -f 2 -d ' '`
|
|
SRV_WSUM=$(($SRV_WSUM + $SRV_W))
|
|
;;
|
|
esac
|
|
done < serverlist
|
|
|
|
# If all the weights are 0, pretend that they are all 1 instead.
|
|
if [ ${SRV_WSUM} -eq 0 ]; then
|
|
SRV_WSUM=`grep -E "^${SRV_PRIORITY} " serverlist | wc -l`
|
|
SRV_W_ADD=1
|
|
else
|
|
SRV_W_ADD=0
|
|
fi
|
|
|
|
# Pick a value between 0 and the sum of the weights - 1
|
|
SRV_RND=`expr ${RANDVALUE} % ${SRV_WSUM}`
|
|
|
|
# Read through the list of mirrors and set SERVERNAME. Write the line
|
|
# corresponding to the mirror we selected into serverlist_tried so that
|
|
# we won't try it again.
|
|
while read X; do
|
|
case "$X" in
|
|
${SRV_PRIORITY}\ *)
|
|
SRV_W=`echo $X | cut -f 2 -d ' '`
|
|
SRV_W=$(($SRV_W + $SRV_W_ADD))
|
|
if [ $SRV_RND -lt $SRV_W ]; then
|
|
SERVERNAME=`echo $X | cut -f 3 -d ' '`
|
|
echo "$X" >> serverlist_tried
|
|
break
|
|
else
|
|
SRV_RND=$(($SRV_RND - $SRV_W))
|
|
fi
|
|
;;
|
|
esac
|
|
done < serverlist
|
|
}
|
|
|
|
# Take a list of ${oldhash}|${newhash} and output a list of needed patches,
|
|
# i.e., those for which we have ${oldhash} and don't have ${newhash}.
|
|
fetch_make_patchlist () {
|
|
grep -vE "^([0-9a-f]{64})\|\1$" |
|
|
tr '|' ' ' |
|
|
while read X Y; do
|
|
if [ -f "files/${Y}.gz" ] ||
|
|
[ ! -f "files/${X}.gz" ]; then
|
|
continue
|
|
fi
|
|
echo "${X}|${Y}"
|
|
done | uniq
|
|
}
|
|
|
|
# Print user-friendly progress statistics
|
|
fetch_progress () {
|
|
LNC=0
|
|
while read x; do
|
|
LNC=$(($LNC + 1))
|
|
if [ $(($LNC % 10)) = 0 ]; then
|
|
echo -n $LNC
|
|
elif [ $(($LNC % 2)) = 0 ]; then
|
|
echo -n .
|
|
fi
|
|
done
|
|
echo -n " "
|
|
}
|
|
|
|
# Initialize the working directory
|
|
workdir_init () {
|
|
mkdir -p files
|
|
touch tINDEX.present
|
|
}
|
|
|
|
# Check that we have a public key with an appropriate hash, or
|
|
# fetch the key if it doesn't exist. Returns 1 if the key has
|
|
# not yet been fetched.
|
|
fetch_key () {
|
|
if [ -r pub.ssl ] && [ `${SHA256} -q pub.ssl` = ${KEYPRINT} ]; then
|
|
return 0
|
|
fi
|
|
|
|
echo -n "Fetching public key from ${SERVERNAME}... "
|
|
rm -f pub.ssl
|
|
fetch ${QUIETFLAG} http://${SERVERNAME}/${FETCHDIR}/pub.ssl \
|
|
2>${QUIETREDIR} || true
|
|
if ! [ -r pub.ssl ]; then
|
|
echo "failed."
|
|
return 1
|
|
fi
|
|
if ! [ `${SHA256} -q pub.ssl` = ${KEYPRINT} ]; then
|
|
echo "key has incorrect hash."
|
|
rm -f pub.ssl
|
|
return 1
|
|
fi
|
|
echo "done."
|
|
}
|
|
|
|
# Fetch metadata signature, aka "tag".
|
|
fetch_tag () {
|
|
echo ${NDEBUG} "Fetching metadata signature from ${SERVERNAME}... "
|
|
rm -f latest.ssl
|
|
fetch ${QUIETFLAG} http://${SERVERNAME}/${FETCHDIR}/latest.ssl \
|
|
2>${QUIETREDIR} || true
|
|
if ! [ -r latest.ssl ]; then
|
|
echo "failed."
|
|
return 1
|
|
fi
|
|
|
|
openssl rsautl -pubin -inkey pub.ssl -verify \
|
|
< latest.ssl > tag.new 2>${QUIETREDIR} || true
|
|
rm latest.ssl
|
|
|
|
if ! [ `wc -l < tag.new` = 1 ] ||
|
|
! grep -qE \
|
|
"^freebsd-update\|${ARCH}\|${RELNUM}\|[0-9]+\|[0-9a-f]{64}\|[0-9]{10}" \
|
|
tag.new; then
|
|
echo "invalid signature."
|
|
return 1
|
|
fi
|
|
|
|
echo "done."
|
|
|
|
RELPATCHNUM=`cut -f 4 -d '|' < tag.new`
|
|
TINDEXHASH=`cut -f 5 -d '|' < tag.new`
|
|
EOLTIME=`cut -f 6 -d '|' < tag.new`
|
|
}
|
|
|
|
# Sanity-check the patch number in a tag, to make sure that we're not
|
|
# going to "update" backwards and to prevent replay attacks.
|
|
fetch_tagsanity () {
|
|
# Check that we're not going to move from -pX to -pY with Y < X.
|
|
RELPX=`uname -r | sed -E 's,.*-,,'`
|
|
if echo ${RELPX} | grep -qE '^p[0-9]+$'; then
|
|
RELPX=`echo ${RELPX} | cut -c 2-`
|
|
else
|
|
RELPX=0
|
|
fi
|
|
if [ "${RELPATCHNUM}" -lt "${RELPX}" ]; then
|
|
echo
|
|
echo -n "Files on mirror (${RELNUM}-p${RELPATCHNUM})"
|
|
echo " appear older than what"
|
|
echo "we are currently running (`uname -r`)!"
|
|
echo "Cowardly refusing to proceed any further."
|
|
return 1
|
|
fi
|
|
|
|
# If "tag" exists and corresponds to ${RELNUM}, make sure that
|
|
# it contains a patch number <= RELPATCHNUM, in order to protect
|
|
# against rollback (replay) attacks.
|
|
if [ -f tag ] &&
|
|
grep -qE \
|
|
"^freebsd-update\|${ARCH}\|${RELNUM}\|[0-9]+\|[0-9a-f]{64}\|[0-9]{10}" \
|
|
tag; then
|
|
LASTRELPATCHNUM=`cut -f 4 -d '|' < tag`
|
|
|
|
if [ "${RELPATCHNUM}" -lt "${LASTRELPATCHNUM}" ]; then
|
|
echo
|
|
echo -n "Files on mirror (${RELNUM}-p${RELPATCHNUM})"
|
|
echo " are older than the"
|
|
echo -n "most recently seen updates"
|
|
echo " (${RELNUM}-p${LASTRELPATCHNUM})."
|
|
echo "Cowardly refusing to proceed any further."
|
|
return 1
|
|
fi
|
|
fi
|
|
}
|
|
|
|
# Fetch metadata index file
|
|
fetch_metadata_index () {
|
|
echo ${NDEBUG} "Fetching metadata index... "
|
|
rm -f ${TINDEXHASH}
|
|
fetch ${QUIETFLAG} http://${SERVERNAME}/${FETCHDIR}/t/${TINDEXHASH}
|
|
2>${QUIETREDIR}
|
|
if ! [ -f ${TINDEXHASH} ]; then
|
|
echo "failed."
|
|
return 1
|
|
fi
|
|
if [ `${SHA256} -q ${TINDEXHASH}` != ${TINDEXHASH} ]; then
|
|
echo "update metadata index corrupt."
|
|
return 1
|
|
fi
|
|
echo "done."
|
|
}
|
|
|
|
# Print an error message about signed metadata being bogus.
|
|
fetch_metadata_bogus () {
|
|
echo
|
|
echo "The update metadata$1 is correctly signed, but"
|
|
echo "failed an integrity check."
|
|
echo "Cowardly refusing to proceed any further."
|
|
return 1
|
|
}
|
|
|
|
# Construct tINDEX.new by merging the lines named in $1 from ${TINDEXHASH}
|
|
# with the lines not named in $@ from tINDEX.present (if that file exists).
|
|
fetch_metadata_index_merge () {
|
|
for METAFILE in $@; do
|
|
if [ `grep -E "^${METAFILE}\|" ${TINDEXHASH} | wc -l` \
|
|
-ne 1 ]; then
|
|
fetch_metadata_bogus " index"
|
|
return 1
|
|
fi
|
|
|
|
grep -E "${METAFILE}\|" ${TINDEXHASH}
|
|
done |
|
|
sort > tINDEX.wanted
|
|
|
|
if [ -f tINDEX.present ]; then
|
|
join -t '|' -v 2 tINDEX.wanted tINDEX.present |
|
|
sort -m - tINDEX.wanted > tINDEX.new
|
|
rm tINDEX.wanted
|
|
else
|
|
mv tINDEX.wanted tINDEX.new
|
|
fi
|
|
}
|
|
|
|
# Sanity check all the lines of tINDEX.new. Even if more metadata lines
|
|
# are added by future versions of the server, this won't cause problems,
|
|
# since the only lines which appear in tINDEX.new are the ones which we
|
|
# specifically grepped out of ${TINDEXHASH}.
|
|
fetch_metadata_index_sanity () {
|
|
if grep -qvE '^[0-9A-Z.-]+\|[0-9a-f]{64}$' tINDEX.new; then
|
|
fetch_metadata_bogus " index"
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
# Sanity check the metadata file $1.
|
|
fetch_metadata_sanity () {
|
|
# Some aliases to save space later: ${P} is a character which can
|
|
# appear in a path; ${M} is the four numeric metadata fields; and
|
|
# ${H} is a sha256 hash.
|
|
P="[-+./:=_[[:alnum:]]"
|
|
M="[0-9]+\|[0-9]+\|[0-9]+\|[0-9]+"
|
|
H="[0-9a-f]{64}"
|
|
|
|
# Check that the first four fields make sense.
|
|
if gunzip -c < files/$1.gz |
|
|
grep -qvE "^[a-z]+\|[0-9a-z]+\|${P}+\|[fdL-]\|"; then
|
|
fetch_metadata_bogus ""
|
|
return 1
|
|
fi
|
|
|
|
# Remove the first three fields.
|
|
gunzip -c < files/$1.gz |
|
|
cut -f 4- -d '|' > sanitycheck.tmp
|
|
|
|
# Sanity check entries with type 'f'
|
|
if grep -E '^f' sanitycheck.tmp |
|
|
grep -qvE "^f\|${M}\|${H}\|${P}*\$"; then
|
|
fetch_metadata_bogus ""
|
|
return 1
|
|
fi
|
|
|
|
# Sanity check entries with type 'd'
|
|
if grep -E '^d' sanitycheck.tmp |
|
|
grep -qvE "^d\|${M}\|\|\$"; then
|
|
fetch_metadata_bogus ""
|
|
return 1
|
|
fi
|
|
|
|
# Sanity check entries with type 'L'
|
|
if grep -E '^L' sanitycheck.tmp |
|
|
grep -qvE "^L\|${M}\|${P}*\|\$"; then
|
|
fetch_metadata_bogus ""
|
|
return 1
|
|
fi
|
|
|
|
# Sanity check entries with type '-'
|
|
if grep -E '^-' sanitycheck.tmp |
|
|
grep -qvE "^-\|\|\|\|\|\|"; then
|
|
fetch_metadata_bogus ""
|
|
return 1
|
|
fi
|
|
|
|
# Clean up
|
|
rm sanitycheck.tmp
|
|
}
|
|
|
|
# Fetch the metadata index and metadata files listed in $@,
|
|
# taking advantage of metadata patches where possible.
|
|
fetch_metadata () {
|
|
fetch_metadata_index || return 1
|
|
fetch_metadata_index_merge $@ || return 1
|
|
fetch_metadata_index_sanity || return 1
|
|
|
|
# Generate a list of wanted metadata patches
|
|
join -t '|' -o 1.2,2.2 tINDEX.present tINDEX.new |
|
|
fetch_make_patchlist > patchlist
|
|
|
|
if [ -s patchlist ]; then
|
|
# Attempt to fetch metadata patches
|
|
echo -n "Fetching `wc -l < patchlist | tr -d ' '` "
|
|
echo ${NDEBUG} "metadata patches.${DDSTATS}"
|
|
tr '|' '-' < patchlist |
|
|
lam -s "${FETCHDIR}/tp/" - -s ".gz" |
|
|
xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \
|
|
2>${STATSREDIR} | fetch_progress
|
|
echo "done."
|
|
|
|
# Attempt to apply metadata patches
|
|
echo -n "Applying metadata patches... "
|
|
tr '|' ' ' < patchlist |
|
|
while read X Y; do
|
|
if [ ! -f "${X}-${Y}.gz" ]; then continue; fi
|
|
gunzip -c < ${X}-${Y}.gz > diff
|
|
gunzip -c < files/${X}.gz > diff-OLD
|
|
|
|
# Figure out which lines are being added and removed
|
|
grep -E '^-' diff |
|
|
cut -c 2- |
|
|
while read PREFIX; do
|
|
look "${PREFIX}" diff-OLD
|
|
done |
|
|
sort > diff-rm
|
|
grep -E '^\+' diff |
|
|
cut -c 2- > diff-add
|
|
|
|
# Generate the new file
|
|
comm -23 diff-OLD diff-rm |
|
|
sort - diff-add > diff-NEW
|
|
|
|
if [ `${SHA256} -q diff-NEW` = ${Y} ]; then
|
|
mv diff-NEW files/${Y}
|
|
gzip -n files/${Y}
|
|
else
|
|
mv diff-NEW ${Y}.bad
|
|
fi
|
|
rm -f ${X}-${Y}.gz diff
|
|
rm -f diff-OLD diff-NEW diff-add diff-rm
|
|
done 2>${QUIETREDIR}
|
|
echo "done."
|
|
fi
|
|
|
|
# Update metadata without patches
|
|
cut -f 2 -d '|' < tINDEX.new |
|
|
while read Y; do
|
|
if [ ! -f "files/${Y}.gz" ]; then
|
|
echo ${Y};
|
|
fi
|
|
done |
|
|
sort -u > filelist
|
|
|
|
if [ -s filelist ]; then
|
|
echo -n "Fetching `wc -l < filelist | tr -d ' '` "
|
|
echo ${NDEBUG} "metadata files... "
|
|
lam -s "${FETCHDIR}/m/" - -s ".gz" < filelist |
|
|
xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \
|
|
2>${QUIETREDIR}
|
|
|
|
while read Y; do
|
|
if ! [ -f ${Y}.gz ]; then
|
|
echo "failed."
|
|
return 1
|
|
fi
|
|
if [ `gunzip -c < ${Y}.gz |
|
|
${SHA256} -q` = ${Y} ]; then
|
|
mv ${Y}.gz files/${Y}.gz
|
|
else
|
|
echo "metadata is corrupt."
|
|
return 1
|
|
fi
|
|
done < filelist
|
|
echo "done."
|
|
fi
|
|
|
|
# Sanity-check the metadata files.
|
|
cut -f 2 -d '|' tINDEX.new > filelist
|
|
while read X; do
|
|
fetch_metadata_sanity ${X} || return 1
|
|
done < filelist
|
|
|
|
# Remove files which are no longer needed
|
|
cut -f 2 -d '|' tINDEX.present |
|
|
sort > oldfiles
|
|
cut -f 2 -d '|' tINDEX.new |
|
|
sort |
|
|
comm -13 - oldfiles |
|
|
lam -s "files/" - -s ".gz" |
|
|
xargs rm -f
|
|
rm patchlist filelist oldfiles
|
|
rm ${TINDEXHASH}
|
|
|
|
# We're done!
|
|
mv tINDEX.new tINDEX.present
|
|
mv tag.new tag
|
|
|
|
return 0
|
|
}
|
|
|
|
# Generate a filtered version of the metadata file $1 from the downloaded
|
|
# file, by fishing out the lines corresponding to components we're trying
|
|
# to keep updated, and then removing lines corresponding to paths we want
|
|
# to ignore.
|
|
fetch_filter_metadata () {
|
|
METAHASH=`look "$1|" tINDEX.present | cut -f 2 -d '|'`
|
|
gunzip -c < files/${METAHASH}.gz > $1.all
|
|
|
|
# Fish out the lines belonging to components we care about.
|
|
# Canonicalize directory names by removing any trailing / in
|
|
# order to avoid listing directories multiple times if they
|
|
# belong to multiple components. Turning "/" into "" doesn't
|
|
# matter, since we add a leading "/" when we use paths later.
|
|
for C in ${COMPONENTS}; do
|
|
look "`echo ${C} | tr '/' '|'`|" $1.all
|
|
done |
|
|
cut -f 3- -d '|' |
|
|
sed -e 's,/|d|,|d|,' |
|
|
sort -u > $1.tmp
|
|
|
|
# Figure out which lines to ignore and remove them.
|
|
for X in ${IGNOREPATHS}; do
|
|
grep -E "^${X}" $1.tmp
|
|
done |
|
|
sort -u |
|
|
comm -13 - $1.tmp > $1
|
|
|
|
# Remove temporary files.
|
|
rm $1.all $1.tmp
|
|
}
|
|
|
|
# Filter the metadata file $1 by adding lines with "/boot/${KERNCONF}"
|
|
# replaced by ${KERNELDIR} (which is `sysctl -n kern.bootfile` minus the
|
|
# trailing "/kernel"); and if "/boot/${KERNCONF}" does not exist, remove
|
|
# the original lines which start with that.
|
|
# Put another way: Deal with the fact that the FOO kernel is sometimes
|
|
# installed in /boot/FOO/ and is sometimes installed elsewhere.
|
|
fetch_filter_kernel_names () {
|
|
|
|
grep ^/boot/${KERNCONF} $1 |
|
|
sed -e "s,/boot/${KERNCONF},${KERNELDIR},g" |
|
|
sort - $1 > $1.tmp
|
|
mv $1.tmp $1
|
|
|
|
if ! [ -d /boot/${KERNCONF} ]; then
|
|
grep -v ^/boot/${KERNCONF} $1 > $1.tmp
|
|
mv $1.tmp $1
|
|
fi
|
|
}
|
|
|
|
# For all paths appearing in $1 or $3, inspect the system
|
|
# and generate $2 describing what is currently installed.
|
|
fetch_inspect_system () {
|
|
# No errors yet...
|
|
rm -f .err
|
|
|
|
# Tell the user why his disk is suddenly making lots of noise
|
|
echo -n "Inspecting system... "
|
|
|
|
# Generate list of files to inspect
|
|
cat $1 $3 |
|
|
cut -f 1 -d '|' |
|
|
sort -u > filelist
|
|
|
|
# Examine each file and output lines of the form
|
|
# /path/to/file|type|device-inum|user|group|perm|flags|value
|
|
# sorted by device and inode number.
|
|
while read F; do
|
|
# If the symlink/file/directory does not exist, record this.
|
|
if ! [ -e ${BASEDIR}/${F} ]; then
|
|
echo "${F}|-||||||"
|
|
continue
|
|
fi
|
|
if ! [ -r ${BASEDIR}/${F} ]; then
|
|
echo "Cannot read file: ${BASEDIR}/${F}" \
|
|
>/dev/stderr
|
|
touch .err
|
|
return 1
|
|
fi
|
|
|
|
# Otherwise, output an index line.
|
|
if [ -L ${BASEDIR}/${F} ]; then
|
|
echo -n "${F}|L|"
|
|
stat -n -f '%d-%i|%u|%g|%Mp%Lp|%Of|' ${BASEDIR}/${F};
|
|
readlink ${BASEDIR}/${F};
|
|
elif [ -f ${BASEDIR}/${F} ]; then
|
|
echo -n "${F}|f|"
|
|
stat -n -f '%d-%i|%u|%g|%Mp%Lp|%Of|' ${BASEDIR}/${F};
|
|
sha256 -q ${BASEDIR}/${F};
|
|
elif [ -d ${BASEDIR}/${F} ]; then
|
|
echo -n "${F}|d|"
|
|
stat -f '%d-%i|%u|%g|%Mp%Lp|%Of|' ${BASEDIR}/${F};
|
|
else
|
|
echo "Unknown file type: ${BASEDIR}/${F}" \
|
|
>/dev/stderr
|
|
touch .err
|
|
return 1
|
|
fi
|
|
done < filelist |
|
|
sort -k 3,3 -t '|' > $2.tmp
|
|
rm filelist
|
|
|
|
# Check if an error occured during system inspection
|
|
if [ -f .err ]; then
|
|
return 1
|
|
fi
|
|
|
|
# Convert to the form
|
|
# /path/to/file|type|user|group|perm|flags|value|hlink
|
|
# by resolving identical device and inode numbers into hard links.
|
|
cut -f 1,3 -d '|' $2.tmp |
|
|
sort -k 1,1 -t '|' |
|
|
sort -s -u -k 2,2 -t '|' |
|
|
join -1 2 -2 3 -t '|' - $2.tmp |
|
|
awk -F \| -v OFS=\| \
|
|
'{
|
|
if (($2 == $3) || ($4 == "-"))
|
|
print $3,$4,$5,$6,$7,$8,$9,""
|
|
else
|
|
print $3,$4,$5,$6,$7,$8,$9,$2
|
|
}' |
|
|
sort > $2
|
|
rm $2.tmp
|
|
|
|
# We're finished looking around
|
|
echo "done."
|
|
}
|
|
|
|
# For any paths matching ${UPDATEIFUNMODIFIED}, remove lines from $[123]
|
|
# which correspond to lines in $2 with hashes not matching $1 or $3. For
|
|
# entries in $2 marked "not present" (aka. type -), remove lines from $[123]
|
|
# unless there is a corresponding entry in $1.
|
|
fetch_filter_unmodified_notpresent () {
|
|
# Figure out which lines of $1 and $3 correspond to bits which
|
|
# should only be updated if they haven't changed, and fish out
|
|
# the (path, type, value) tuples.
|
|
# NOTE: We don't consider a file to be "modified" if it matches
|
|
# the hash from $3.
|
|
for X in ${UPDATEIFUNMODIFIED}; do
|
|
grep -E "^${X}" $1
|
|
grep -E "^${X}" $3
|
|
done |
|
|
cut -f 1,2,7 -d '|' |
|
|
sort > $1-values
|
|
|
|
# Do the same for $2.
|
|
for X in ${UPDATEIFUNMODIFIED}; do
|
|
grep -E "^${X}" $2
|
|
done |
|
|
cut -f 1,2,7 -d '|' |
|
|
sort > $2-values
|
|
|
|
# Any entry in $2-values which is not in $1-values corresponds to
|
|
# a path which we need to remove from $1, $2, and $3.
|
|
comm -13 $1-values $2-values > mlines
|
|
rm $1-values $2-values
|
|
|
|
# Any lines in $2 which are not in $1 AND are "not present" lines
|
|
# also belong in mlines.
|
|
comm -13 $1 $2 |
|
|
cut -f 1,2,7 -d '|' |
|
|
fgrep '|-|' >> mlines
|
|
|
|
# Remove lines from $1, $2, and $3
|
|
for X in $1 $2 $3; do
|
|
sort -t '|' -k 1,1 ${X} > ${X}.tmp
|
|
cut -f 1 -d '|' < mlines |
|
|
sort |
|
|
join -v 2 -t '|' - ${X}.tmp |
|
|
sort > ${X}
|
|
rm ${X}.tmp
|
|
done
|
|
|
|
# Store a list of the modified files, for future reference
|
|
fgrep -v '|-|' mlines |
|
|
cut -f 1 -d '|' > modifiedfiles
|
|
rm mlines
|
|
}
|
|
|
|
# For each entry in $1 of type -, remove any corresponding
|
|
# entry from $2 if ${ALLOWADD} != "yes". Remove all entries
|
|
# of type - from $1.
|
|
fetch_filter_allowadd () {
|
|
cut -f 1,2 -d '|' < $1 |
|
|
fgrep '|-' |
|
|
cut -f 1 -d '|' > filesnotpresent
|
|
|
|
if [ ${ALLOWADD} != "yes" ]; then
|
|
sort < $2 |
|
|
join -v 1 -t '|' - filesnotpresent |
|
|
sort > $2.tmp
|
|
mv $2.tmp $2
|
|
fi
|
|
|
|
sort < $1 |
|
|
join -v 1 -t '|' - filesnotpresent |
|
|
sort > $1.tmp
|
|
mv $1.tmp $1
|
|
rm filesnotpresent
|
|
}
|
|
|
|
# If ${ALLOWDELETE} != "yes", then remove any entries from $1
|
|
# which don't correspond to entries in $2.
|
|
fetch_filter_allowdelete () {
|
|
# Produce a lists ${PATH}|${TYPE}
|
|
for X in $1 $2; do
|
|
cut -f 1-2 -d '|' < ${X} |
|
|
sort -u > ${X}.nodes
|
|
done
|
|
|
|
# Figure out which lines need to be removed from $1.
|
|
if [ ${ALLOWDELETE} != "yes" ]; then
|
|
comm -23 $1.nodes $2.nodes > $1.badnodes
|
|
else
|
|
: > $1.badnodes
|
|
fi
|
|
|
|
# Remove the relevant lines from $1
|
|
while read X; do
|
|
look "${X}|" $1
|
|
done < $1.badnodes |
|
|
comm -13 - $1 > $1.tmp
|
|
mv $1.tmp $1
|
|
|
|
rm $1.badnodes $1.nodes $2.nodes
|
|
}
|
|
|
|
# If ${KEEPMODIFIEDMETADATA} == "yes", then for each entry in $2
|
|
# with metadata not matching any entry in $1, replace the corresponding
|
|
# line of $3 with one having the same metadata as the entry in $2.
|
|
fetch_filter_modified_metadata () {
|
|
# Fish out the metadata from $1 and $2
|
|
for X in $1 $2; do
|
|
cut -f 1-6 -d '|' < ${X} > ${X}.metadata
|
|
done
|
|
|
|
# Find the metadata we need to keep
|
|
if [ ${KEEPMODIFIEDMETADATA} = "yes" ]; then
|
|
comm -13 $1.metadata $2.metadata > keepmeta
|
|
else
|
|
: > keepmeta
|
|
fi
|
|
|
|
# Extract the lines which we need to remove from $3, and
|
|
# construct the lines which we need to add to $3.
|
|
: > $3.remove
|
|
: > $3.add
|
|
while read LINE; do
|
|
NODE=`echo "${LINE}" | cut -f 1-2 -d '|'`
|
|
look "${NODE}|" $3 >> $3.remove
|
|
look "${NODE}|" $3 |
|
|
cut -f 7- -d '|' |
|
|
lam -s "${LINE}|" - >> $3.add
|
|
done < keepmeta
|
|
|
|
# Remove the specified lines and add the new lines.
|
|
sort $3.remove |
|
|
comm -13 - $3 |
|
|
sort -u - $3.add > $3.tmp
|
|
mv $3.tmp $3
|
|
|
|
rm keepmeta $1.metadata $2.metadata $3.add $3.remove
|
|
}
|
|
|
|
# Remove lines from $1 and $2 which are identical;
|
|
# no need to update a file if it isn't changing.
|
|
fetch_filter_uptodate () {
|
|
comm -23 $1 $2 > $1.tmp
|
|
comm -13 $1 $2 > $2.tmp
|
|
|
|
mv $1.tmp $1
|
|
mv $2.tmp $2
|
|
}
|
|
|
|
# Prepare to fetch files: Generate a list of the files we need,
|
|
# copy the unmodified files we have into /files/, and generate
|
|
# a list of patches to download.
|
|
fetch_files_prepare () {
|
|
# Tell the user why his disk is suddenly making lots of noise
|
|
echo -n "Preparing to download files... "
|
|
|
|
# Reduce indices to ${PATH}|${HASH} pairs
|
|
for X in $1 $2 $3; do
|
|
cut -f 1,2,7 -d '|' < ${X} |
|
|
fgrep '|f|' |
|
|
cut -f 1,3 -d '|' |
|
|
sort > ${X}.hashes
|
|
done
|
|
|
|
# List of files wanted
|
|
cut -f 2 -d '|' < $3.hashes |
|
|
sort -u > files.wanted
|
|
|
|
# Generate a list of unmodified files
|
|
comm -12 $1.hashes $2.hashes |
|
|
sort -k 1,1 -t '|' > unmodified.files
|
|
|
|
# Copy all files into /files/. We only need the unmodified files
|
|
# for use in patching; but we'll want all of them if the user asks
|
|
# to rollback the updates later.
|
|
cut -f 1 -d '|' < $2.hashes |
|
|
while read F; do
|
|
cp "${BASEDIR}/${F}" tmpfile
|
|
gzip -c < tmpfile > files/`sha256 -q tmpfile`.gz
|
|
rm tmpfile
|
|
done
|
|
|
|
# Produce a list of patches to download
|
|
sort -k 1,1 -t '|' $3.hashes |
|
|
join -t '|' -o 2.2,1.2 - unmodified.files |
|
|
fetch_make_patchlist > patchlist
|
|
|
|
# Garbage collect
|
|
rm unmodified.files $1.hashes $2.hashes $3.hashes
|
|
|
|
# We don't need the list of possible old files any more.
|
|
rm $1
|
|
|
|
# We're finished making noise
|
|
echo "done."
|
|
}
|
|
|
|
# Fetch files.
|
|
fetch_files () {
|
|
# Attempt to fetch patches
|
|
if [ -s patchlist ]; then
|
|
echo -n "Fetching `wc -l < patchlist | tr -d ' '` "
|
|
echo ${NDEBUG} "patches.${DDSTATS}"
|
|
tr '|' '-' < patchlist |
|
|
lam -s "${FETCHDIR}/bp/" - |
|
|
xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \
|
|
2>${STATSREDIR} | fetch_progress
|
|
echo "done."
|
|
|
|
# Attempt to apply patches
|
|
echo -n "Applying patches... "
|
|
tr '|' ' ' < patchlist |
|
|
while read X Y; do
|
|
if [ ! -f "${X}-${Y}" ]; then continue; fi
|
|
gunzip -c < files/${X}.gz > OLD
|
|
|
|
bspatch OLD NEW ${X}-${Y}
|
|
|
|
if [ `${SHA256} -q NEW` = ${Y} ]; then
|
|
mv NEW files/${Y}
|
|
gzip -n files/${Y}
|
|
fi
|
|
rm -f diff OLD NEW ${X}-${Y}
|
|
done 2>${QUIETREDIR}
|
|
echo "done."
|
|
fi
|
|
|
|
# Download files which couldn't be generate via patching
|
|
while read Y; do
|
|
if [ ! -f "files/${Y}.gz" ]; then
|
|
echo ${Y};
|
|
fi
|
|
done < files.wanted > filelist
|
|
|
|
if [ -s filelist ]; then
|
|
echo -n "Fetching `wc -l < filelist | tr -d ' '` "
|
|
echo ${NDEBUG} "files... "
|
|
lam -s "${FETCHDIR}/f/" - -s ".gz" < filelist |
|
|
xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \
|
|
2>${QUIETREDIR}
|
|
|
|
while read Y; do
|
|
if ! [ -f ${Y}.gz ]; then
|
|
echo "failed."
|
|
return 1
|
|
fi
|
|
if [ `gunzip -c < ${Y}.gz |
|
|
${SHA256} -q` = ${Y} ]; then
|
|
mv ${Y}.gz files/${Y}.gz
|
|
else
|
|
echo "${Y} has incorrect hash."
|
|
return 1
|
|
fi
|
|
done < filelist
|
|
echo "done."
|
|
fi
|
|
|
|
# Clean up
|
|
rm files.wanted filelist patchlist
|
|
}
|
|
|
|
# Create and populate install manifest directory; and report what updates
|
|
# are available.
|
|
fetch_create_manifest () {
|
|
# If we have an existing install manifest, nuke it.
|
|
if [ -L "${BDHASH}-install" ]; then
|
|
rm -r ${BDHASH}-install/
|
|
rm ${BDHASH}-install
|
|
fi
|
|
|
|
# Report to the user if any updates were avoided due to local changes
|
|
if [ -s modifiedfiles ]; then
|
|
echo
|
|
echo -n "The following files are affected by updates, "
|
|
echo "but no changes have"
|
|
echo -n "been downloaded because the files have been "
|
|
echo "modified locally:"
|
|
cat modifiedfiles
|
|
fi
|
|
rm modifiedfiles
|
|
|
|
# If no files will be updated, tell the user and exit
|
|
if ! [ -s INDEX-PRESENT ] &&
|
|
! [ -s INDEX-NEW ]; then
|
|
rm INDEX-PRESENT INDEX-NEW
|
|
echo
|
|
echo -n "No updates needed to update system to "
|
|
echo "${RELNUM}-p${RELPATCHNUM}."
|
|
return
|
|
fi
|
|
|
|
# Divide files into (a) removed files, (b) added files, and
|
|
# (c) updated files.
|
|
cut -f 1 -d '|' < INDEX-PRESENT |
|
|
sort > INDEX-PRESENT.flist
|
|
cut -f 1 -d '|' < INDEX-NEW |
|
|
sort > INDEX-NEW.flist
|
|
comm -23 INDEX-PRESENT.flist INDEX-NEW.flist > files.removed
|
|
comm -13 INDEX-PRESENT.flist INDEX-NEW.flist > files.added
|
|
comm -12 INDEX-PRESENT.flist INDEX-NEW.flist > files.updated
|
|
rm INDEX-PRESENT.flist INDEX-NEW.flist
|
|
|
|
# Report removed files, if any
|
|
if [ -s files.removed ]; then
|
|
echo
|
|
echo -n "The following files will be removed "
|
|
echo "as part of updating to ${RELNUM}-p${RELPATCHNUM}:"
|
|
cat files.removed
|
|
fi
|
|
rm files.removed
|
|
|
|
# Report added files, if any
|
|
if [ -s files.added ]; then
|
|
echo
|
|
echo -n "The following files will be added "
|
|
echo "as part of updating to ${RELNUM}-p${RELPATCHNUM}:"
|
|
cat files.added
|
|
fi
|
|
rm files.added
|
|
|
|
# Report updated files, if any
|
|
if [ -s files.updated ]; then
|
|
echo
|
|
echo -n "The following files will be updated "
|
|
echo "as part of updating to ${RELNUM}-p${RELPATCHNUM}:"
|
|
|
|
cat files.updated
|
|
fi
|
|
rm files.updated
|
|
|
|
# Create a directory for the install manifest.
|
|
MDIR=`mktemp -d install.XXXXXX` || return 1
|
|
|
|
# Populate it
|
|
mv INDEX-PRESENT ${MDIR}/INDEX-OLD
|
|
mv INDEX-NEW ${MDIR}/INDEX-NEW
|
|
|
|
# Link it into place
|
|
ln -s ${MDIR} ${BDHASH}-install
|
|
}
|
|
|
|
# Warn about any upcoming EoL
|
|
fetch_warn_eol () {
|
|
# What's the current time?
|
|
NOWTIME=`date "+%s"`
|
|
|
|
# When did we last warn about the EoL date?
|
|
if [ -f lasteolwarn ]; then
|
|
LASTWARN=`cat lasteolwarn`
|
|
else
|
|
LASTWARN=`expr ${NOWTIME} - 63072000`
|
|
fi
|
|
|
|
# If the EoL time is past, warn.
|
|
if [ ${EOLTIME} -lt ${NOWTIME} ]; then
|
|
echo
|
|
cat <<-EOF
|
|
WARNING: `uname -sr` HAS PASSED ITS END-OF-LIFE DATE.
|
|
Any security issues discovered after `date -r ${EOLTIME}`
|
|
will not have been corrected.
|
|
EOF
|
|
return 1
|
|
fi
|
|
|
|
# Figure out how long it has been since we last warned about the
|
|
# upcoming EoL, and how much longer we have left.
|
|
SINCEWARN=`expr ${NOWTIME} - ${LASTWARN}`
|
|
TIMELEFT=`expr ${EOLTIME} - ${NOWTIME}`
|
|
|
|
# Don't warn if the EoL is more than 6 months away
|
|
if [ ${TIMELEFT} -gt 15768000 ]; then
|
|
return 0
|
|
fi
|
|
|
|
# Don't warn if the time remaining is more than 3 times the time
|
|
# since the last warning.
|
|
if [ ${TIMELEFT} -gt `expr ${SINCEWARN} \* 3` ]; then
|
|
return 0
|
|
fi
|
|
|
|
# Figure out what time units to use.
|
|
if [ ${TIMELEFT} -lt 604800 ]; then
|
|
UNIT="day"
|
|
SIZE=86400
|
|
elif [ ${TIMELEFT} -lt 2678400 ]; then
|
|
UNIT="week"
|
|
SIZE=604800
|
|
else
|
|
UNIT="month"
|
|
SIZE=2678400
|
|
fi
|
|
|
|
# Compute the right number of units
|
|
NUM=`expr ${TIMELEFT} / ${SIZE}`
|
|
if [ ${NUM} != 1 ]; then
|
|
UNIT="${UNIT}s"
|
|
fi
|
|
|
|
# Print the warning
|
|
echo
|
|
cat <<-EOF
|
|
WARNING: `uname -sr` is approaching its End-of-Life date.
|
|
It is strongly recommended that you upgrade to a newer
|
|
release within the next ${NUM} ${UNIT}.
|
|
EOF
|
|
|
|
# Update the stored time of last warning
|
|
echo ${NOWTIME} > lasteolwarn
|
|
}
|
|
|
|
# Do the actual work involved in "fetch" / "cron".
|
|
fetch_run () {
|
|
workdir_init || return 1
|
|
|
|
# Prepare the mirror list.
|
|
fetch_pick_server_init && fetch_pick_server
|
|
|
|
# Try to fetch the public key until we run out of servers.
|
|
while ! fetch_key; do
|
|
fetch_pick_server || return 1
|
|
done
|
|
|
|
# Try to fetch the metadata index signature ("tag") until we run
|
|
# out of available servers; and sanity check the downloaded tag.
|
|
while ! fetch_tag; do
|
|
fetch_pick_server || return 1
|
|
done
|
|
fetch_tagsanity || return 1
|
|
|
|
# Fetch the latest INDEX-NEW and INDEX-OLD files.
|
|
fetch_metadata INDEX-NEW INDEX-OLD || return 1
|
|
|
|
# Generate filtered INDEX-NEW and INDEX-OLD files containing only
|
|
# the lines which (a) belong to components we care about, and (b)
|
|
# don't correspond to paths we're explicitly ignoring.
|
|
fetch_filter_metadata INDEX-NEW || return 1
|
|
fetch_filter_metadata INDEX-OLD || return 1
|
|
|
|
# Translate /boot/`uname -i` into ${KERNELDIR}
|
|
fetch_filter_kernel_names INDEX-NEW
|
|
fetch_filter_kernel_names INDEX-OLD
|
|
|
|
# For all paths appearing in INDEX-OLD or INDEX-NEW, inspect the
|
|
# system and generate an INDEX-PRESENT file.
|
|
fetch_inspect_system INDEX-OLD INDEX-PRESENT INDEX-NEW || return 1
|
|
|
|
# Based on ${UPDATEIFUNMODIFIED}, remove lines from INDEX-* which
|
|
# correspond to lines in INDEX-PRESENT with hashes not appearing
|
|
# in INDEX-OLD or INDEX-NEW. Also remove lines where the entry in
|
|
# INDEX-PRESENT has type - and there isn't a corresponding entry in
|
|
# INDEX-OLD with type -.
|
|
fetch_filter_unmodified_notpresent INDEX-OLD INDEX-PRESENT INDEX-NEW
|
|
|
|
# For each entry in INDEX-PRESENT of type -, remove any corresponding
|
|
# entry from INDEX-NEW if ${ALLOWADD} != "yes". Remove all entries
|
|
# of type - from INDEX-PRESENT.
|
|
fetch_filter_allowadd INDEX-PRESENT INDEX-NEW
|
|
|
|
# If ${ALLOWDELETE} != "yes", then remove any entries from
|
|
# INDEX-PRESENT which don't correspond to entries in INDEX-NEW.
|
|
fetch_filter_allowdelete INDEX-PRESENT INDEX-NEW
|
|
|
|
# If ${KEEPMODIFIEDMETADATA} == "yes", then for each entry in
|
|
# INDEX-PRESENT with metadata not matching any entry in INDEX-OLD,
|
|
# replace the corresponding line of INDEX-NEW with one having the
|
|
# same metadata as the entry in INDEX-PRESENT.
|
|
fetch_filter_modified_metadata INDEX-OLD INDEX-PRESENT INDEX-NEW
|
|
|
|
# Remove lines from INDEX-PRESENT and INDEX-NEW which are identical;
|
|
# no need to update a file if it isn't changing.
|
|
fetch_filter_uptodate INDEX-PRESENT INDEX-NEW
|
|
|
|
# Prepare to fetch files: Generate a list of the files we need,
|
|
# copy the unmodified files we have into /files/, and generate
|
|
# a list of patches to download.
|
|
fetch_files_prepare INDEX-OLD INDEX-PRESENT INDEX-NEW
|
|
|
|
# Fetch files.
|
|
fetch_files || return 1
|
|
|
|
# Create and populate install manifest directory; and report what
|
|
# updates are available.
|
|
fetch_create_manifest || return 1
|
|
|
|
# Warn about any upcoming EoL
|
|
fetch_warn_eol || return 1
|
|
}
|
|
|
|
# Make sure that all the file hashes mentioned in $@ have corresponding
|
|
# gzipped files stored in /files/.
|
|
install_verify () {
|
|
# Generate a list of hashes
|
|
cat $@ |
|
|
cut -f 2,7 -d '|' |
|
|
grep -E '^f' |
|
|
cut -f 2 -d '|' |
|
|
sort -u > filelist
|
|
|
|
# Make sure all the hashes exist
|
|
while read HASH; do
|
|
if ! [ -f files/${HASH}.gz ]; then
|
|
echo -n "Update files missing -- "
|
|
echo "this should never happen."
|
|
echo "Re-run '$0 fetch'."
|
|
return 1
|
|
fi
|
|
done < filelist
|
|
|
|
# Clean up
|
|
rm filelist
|
|
}
|
|
|
|
# Remove the system immutable flag from files
|
|
install_unschg () {
|
|
# Generate file list
|
|
cat $@ |
|
|
cut -f 1 -d '|' > filelist
|
|
|
|
# Remove flags
|
|
while read F; do
|
|
if ! [ -e ${F} ]; then
|
|
continue
|
|
fi
|
|
|
|
chflags noschg ${F} || return 1
|
|
done < filelist
|
|
|
|
# Clean up
|
|
rm filelist
|
|
}
|
|
|
|
# Install new files
|
|
install_from_index () {
|
|
# First pass: Do everything apart from setting file flags. We
|
|
# can't set flags yet, because schg inhibits hard linking.
|
|
sort -k 1,1 -t '|' $1 |
|
|
tr '|' ' ' |
|
|
while read FPATH TYPE OWNER GROUP PERM FLAGS HASH LINK; do
|
|
case ${TYPE} in
|
|
d)
|
|
# Create a directory
|
|
install -d -o ${OWNER} -g ${GROUP} \
|
|
-m ${PERM} ${BASEDIR}/${FPATH}
|
|
;;
|
|
f)
|
|
if [ -z "${LINK}" ]; then
|
|
# Create a file, without setting flags.
|
|
gunzip < files/${HASH}.gz > ${HASH}
|
|
install -S -o ${OWNER} -g ${GROUP} \
|
|
-m ${PERM} ${HASH} ${BASEDIR}/${FPATH}
|
|
rm ${HASH}
|
|
else
|
|
# Create a hard link.
|
|
ln -f ${LINK} ${BASEDIR}/${FPATH}
|
|
fi
|
|
;;
|
|
L)
|
|
# Create a symlink
|
|
ln -sfh ${HASH} ${BASEDIR}/${FPATH}
|
|
;;
|
|
esac
|
|
done
|
|
|
|
# Perform a second pass, adding file flags.
|
|
tr '|' ' ' < $1 |
|
|
while read FPATH TYPE OWNER GROUP PERM FLAGS HASH LINK; do
|
|
if [ ${TYPE} = "f" ] &&
|
|
! [ ${FLAGS} = "0" ]; then
|
|
chflags ${FLAGS} ${BASEDIR}/${FPATH}
|
|
fi
|
|
done
|
|
}
|
|
|
|
# Remove files which we want to delete
|
|
install_delete () {
|
|
# Generate list of new files
|
|
cut -f 1 -d '|' < $2 |
|
|
sort > newfiles
|
|
|
|
# Generate subindex of old files we want to nuke
|
|
sort -k 1,1 -t '|' $1 |
|
|
join -t '|' -v 1 - newfiles |
|
|
sort -r -k 1,1 -t '|' |
|
|
cut -f 1,2 -d '|' |
|
|
tr '|' ' ' > killfiles
|
|
|
|
# Remove the offending bits
|
|
while read FPATH TYPE; do
|
|
case ${TYPE} in
|
|
d)
|
|
rmdir ${BASEDIR}/${FPATH}
|
|
;;
|
|
f)
|
|
rm ${BASEDIR}/${FPATH}
|
|
;;
|
|
L)
|
|
rm ${BASEDIR}/${FPATH}
|
|
;;
|
|
esac
|
|
done < killfiles
|
|
|
|
# Clean up
|
|
rm newfiles killfiles
|
|
}
|
|
|
|
# Update linker.hints if anything in /boot/ was touched
|
|
install_kldxref () {
|
|
if cat $@ |
|
|
grep -qE '^/boot/'; then
|
|
kldxref -R /boot/
|
|
fi
|
|
}
|
|
|
|
# Rearrange bits to allow the installed updates to be rolled back
|
|
install_setup_rollback () {
|
|
if [ -L ${BDHASH}-rollback ]; then
|
|
mv ${BDHASH}-rollback ${BDHASH}-install/rollback
|
|
fi
|
|
|
|
mv ${BDHASH}-install ${BDHASH}-rollback
|
|
}
|
|
|
|
# Actually install updates
|
|
install_run () {
|
|
echo -n "Installing updates..."
|
|
|
|
# Make sure we have all the files we should have
|
|
install_verify ${BDHASH}-install/INDEX-OLD \
|
|
${BDHASH}-install/INDEX-NEW || return 1
|
|
|
|
# Remove system immutable flag from files
|
|
install_unschg ${BDHASH}-install/INDEX-OLD \
|
|
${BDHASH}-install/INDEX-NEW || return 1
|
|
|
|
# Install new files
|
|
install_from_index \
|
|
${BDHASH}-install/INDEX-NEW || return 1
|
|
|
|
# Remove files which we want to delete
|
|
install_delete ${BDHASH}-install/INDEX-OLD \
|
|
${BDHASH}-install/INDEX-NEW || return 1
|
|
|
|
# Update linker.hints if anything in /boot/ was touched
|
|
install_kldxref ${BDHASH}-install/INDEX-OLD \
|
|
${BDHASH}-install/INDEX-NEW
|
|
|
|
# Rearrange bits to allow the installed updates to be rolled back
|
|
install_setup_rollback
|
|
|
|
echo " done."
|
|
}
|
|
|
|
# Rearrange bits to allow the previous set of updates to be rolled back next.
|
|
rollback_setup_rollback () {
|
|
if [ -L ${BDHASH}-rollback/rollback ]; then
|
|
mv ${BDHASH}-rollback/rollback rollback-tmp
|
|
rm -r ${BDHASH}-rollback/
|
|
rm ${BDHASH}-rollback
|
|
mv rollback-tmp ${BDHASH}-rollback
|
|
else
|
|
rm -r ${BDHASH}-rollback/
|
|
rm ${BDHASH}-rollback
|
|
fi
|
|
}
|
|
|
|
# Actually rollback updates
|
|
rollback_run () {
|
|
echo -n "Uninstalling updates..."
|
|
|
|
# If there are updates waiting to be installed, remove them; we
|
|
# want the user to re-run 'fetch' after rolling back updates.
|
|
if [ -L ${BDHASH}-install ]; then
|
|
rm -r ${BDHASH}-install/
|
|
rm ${BDHASH}-install
|
|
fi
|
|
|
|
# Make sure we have all the files we should have
|
|
install_verify ${BDHASH}-rollback/INDEX-NEW \
|
|
${BDHASH}-rollback/INDEX-OLD || return 1
|
|
|
|
# Remove system immutable flag from files
|
|
install_unschg ${BDHASH}-rollback/INDEX-NEW \
|
|
${BDHASH}-rollback/INDEX-OLD || return 1
|
|
|
|
# Install new files
|
|
install_from_index \
|
|
${BDHASH}-rollback/INDEX-OLD || return 1
|
|
|
|
# Remove files which we want to delete
|
|
install_delete ${BDHASH}-rollback/INDEX-NEW \
|
|
${BDHASH}-rollback/INDEX-OLD || return 1
|
|
|
|
# Update linker.hints if anything in /boot/ was touched
|
|
install_kldxref ${BDHASH}-rollback/INDEX-NEW \
|
|
${BDHASH}-rollback/INDEX-OLD
|
|
|
|
# Remove the rollback directory and the symlink pointing to it; and
|
|
# rearrange bits to allow the previous set of updates to be rolled
|
|
# back next.
|
|
rollback_setup_rollback
|
|
|
|
echo " done."
|
|
}
|
|
|
|
#### Main functions -- call parameter-handling and core functions
|
|
|
|
# Using the command line, configuration file, and defaults,
|
|
# set all the parameters which are needed later.
|
|
get_params () {
|
|
init_params
|
|
parse_cmdline $@
|
|
parse_conffile
|
|
default_params
|
|
}
|
|
|
|
# Fetch command. Make sure that we're being called
|
|
# interactively, then run fetch_check_params and fetch_run
|
|
cmd_fetch () {
|
|
if [ ! -t 0 ]; then
|
|
echo -n "`basename $0` fetch should not "
|
|
echo "be run non-interactively."
|
|
echo "Run `basename $0` cron instead."
|
|
exit 1
|
|
fi
|
|
fetch_check_params
|
|
fetch_run || exit 1
|
|
}
|
|
|
|
# Cron command. Make sure the parameters are sensible; wait
|
|
# rand(3600) seconds; then fetch updates. While fetching updates,
|
|
# send output to a temporary file; only print that file if the
|
|
# fetching failed.
|
|
cmd_cron () {
|
|
fetch_check_params
|
|
sleep `jot -r 1 0 3600`
|
|
|
|
TMPFILE=`mktemp /tmp/freebsd-update.XXXXXX` || exit 1
|
|
if ! fetch_run >> ${TMPFILE} ||
|
|
! grep -q "No updates needed" ${TMPFILE} ||
|
|
[ ${VERBOSELEVEL} = "debug" ]; then
|
|
mail -s "`hostname` security updates" ${MAILTO} < ${TMPFILE}
|
|
fi
|
|
|
|
rm ${TMPFILE}
|
|
}
|
|
|
|
# Install downloaded updates.
|
|
cmd_install () {
|
|
install_check_params
|
|
install_run || exit 1
|
|
}
|
|
|
|
# Rollback most recently installed updates.
|
|
cmd_rollback () {
|
|
rollback_check_params
|
|
rollback_run || exit 1
|
|
}
|
|
|
|
#### Entry point
|
|
|
|
# Make sure we find utilities from the base system
|
|
export PATH=/sbin:/bin:/usr/sbin:/usr/bin:${PATH}
|
|
|
|
# Set LC_ALL in order to avoid problems with character ranges like [A-Z].
|
|
export LC_ALL=C
|
|
|
|
get_params $@
|
|
for COMMAND in ${COMMANDS}; do
|
|
cmd_${COMMAND}
|
|
done
|