# # Shorewall 5.2 -- /usr/share/shorewall/lib.cli-std # # (c) 1999-2018 - Tom Eastep (teastep@shorewall.net) # # Complete documentation is available at https://shorewall.org # # This program is part of Shorewall. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by the # Free Software Foundation, either version 2 of the license or, at your # option, any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, see . # # This library contains the command processing code common to /sbin/shorewall and /sbin/shorewall6. # #################################################################################################### # Set the configuration variables from the .conf file # # $1 = Yes: read the params file # $2 = Yes: check for STARTUP_ENABLED # $3 = Yes: Check for LOGFILE # std_get_config() { local prog local lib ensure_config_path if [ "$1" = Yes ]; then if [ "$(id -u)" -eq 0 ]; then params=$(find_file params) else params="$g_shorewalldir/params" fi if [ -f $params ]; then . $params fi fi if [ -n "$g_shorewalldir" ]; then config="$g_shorewalldir/$PRODUCT.conf" else config=$(find_file ${PRODUCT}.conf) fi if [ -f $config ]; then if [ -r $config ]; then . $config else fatal_error "Cannot read $config! (Hint: Are you root?)" fi else fatal_error "$config does not exist!" fi ensure_config_path if [ -z "$g_export" -a "$(id -u)" = 0 ]; then # # This block is avoided for compile for export and when the user isn't root # if [ "$3" = Yes ]; then setup_logread fi if [ $g_family -eq 4 ]; then if [ -n "$IPTABLES" ]; then if [ ! -x "$IPTABLES" ]; then fatal_error "The program specified in IPTABLES does not exist or is not executable" fi else IPTABLES=$(mywhich iptables 2> /dev/null) if [ -z "$IPTABLES" ] ; then fatal_error "Can't find iptables executable" fi fi g_tool=$IPTABLES else if [ -n "$IP6TABLES" ]; then if [ ! -x "$IP6TABLES" ]; then fatal_error "The program specified in IP6TABLES does not exist or is not executable" fi else IP6TABLES=$(mywhich ip6tables 2> /dev/null) if [ -z "$IP6TABLES" ] ; then fatal_error "Can't find ip6tables executable" fi fi g_tool=$IP6TABLES fi if [ -n "$IPSET" ]; then case "$IPSET" in */*) if [ ! -x "$IPSET" ] ; then fatal_error "The program specified in IPSET ($IPSET) does not exist or is not executable" fi ;; ipset) # # Old config files had this as default # IPSET='' ;; *) prog="$(mywhich $IPSET 2> /dev/null)" if [ -z "$prog" ] ; then fatal_error "Can't find $IPSET executable" fi IPSET=$prog ;; esac else IPSET='' fi if [ -n "$TC" ]; then case "$TC" in */*) if [ ! -x "$TC" ] ; then fatal_error "The program specified in TC ($TC) does not exist or is not executable" fi ;; *) prog="$(mywhich $TC 2> /dev/null)" if [ -z "$prog" ] ; then fatal_error "Can't find $TC executable" fi TC=$prog ;; esac else TC='tc' fi # # Compile by non-root needs no restore file # [ -n "$RESTOREFILE" ] || RESTOREFILE=restore validate_restorefile RESTOREFILE if [ "$2" = Yes ]; then case $STARTUP_ENABLED in No|no|NO) not_configured_error "$g_product startup is disabled. To enable startup, set STARTUP_ENABLED=Yes in ${g_confdir}/${PRODUCT}.conf" ;; Yes|yes|YES) ;; *) if [ -n "$STARTUP_ENABLED" ]; then not_configured_error "Invalid Value for STARTUP_ENABLED: $STARTUP_ENABLED" fi ;; esac fi case ${SHOREWALL_COMPILER:=perl} in perl|Perl) ;; shell|Shell) echo " WARNING: SHOREWALL_COMPILER=shell ignored. Shorewall-shell support has been removed in this release" >&2 ;; *) fatal_error "Invalid value ($SHOREWALL_COMPILER) for SHOREWALL_COMPILER" ;; esac case ${TC_ENABLED:=Internal} in No|NO|no) TC_ENABLED= ;; esac [ -z "$LOGFORMAT" ] && LOGFORMAT='Shorewall:%s.%s' [ -n "$LOGFORMAT" ] && LOGFORMAT="${LOGFORMAT%%%*}" if [ -n "$STARTUP_LOG" ]; then if [ -n "$LOG_VERBOSITY" ]; then case $LOG_VERBOSITY in -1) ;; 0|1|2) ;; *) fatal_error "Invalid LOG_VERBOSITY ($LOG_VERBOSITY)" ;; esac else LOG_VERBOSITY=2; fi else LOG_VERBOSITY=-1; fi else STARTUP_LOG= LOG_VERBOSITY=-1 fi if [ -z "${g_export}${g_test}" ]; then if [ -n "$SHOREWALL_SHELL" ]; then if [ ! -x "$SHOREWALL_SHELL" ]; then echo " WARNING: The program specified in SHOREWALL_SHELL does not exist or is not executable; falling back to /bin/sh" >&2 SHOREWALL_SHELL=/bin/sh fi else SHOREWALL_SHELL=/bin/sh fi if [ -n "$IP" ]; then case "$IP" in */*) if [ ! -x "$IP" ] ; then fatal_error "The program specified in IP ($IP) does not exist or is not executable" fi ;; *) prog="$(mywhich $IP 2> /dev/null)" if [ -z "$prog" ] ; then fatal_error "Can't find $IP executable" fi IP=$prog ;; esac else IP='ip' fi else [ -n "$SHOREWALL_SHELL" ] || SHOREWALL_SHELL=/bin/sh [ -n "$IP" ] || IP='ip' fi case $VERBOSITY in -1|0|1|2) ;; *) if [ -n "$VERBOSITY" ]; then fatal_error "Invalid VERBOSITY setting ($VERBOSITY)" else VERBOSITY=2 fi ;; esac [ -n "$g_use_verbosity" ] && VERBOSITY=$g_use_verbosity || VERBOSITY=$(($g_verbose_offset + $VERBOSITY)) if [ $VERBOSITY -lt -1 ]; then VERBOSITY=-1 elif [ $VERBOSITY -gt 2 ]; then VERBOSITY=2 fi g_hostname=$(hostname 2> /dev/null) [ -n "$RSH_COMMAND" ] || RSH_COMMAND='ssh ${root}@${system} ${command}' [ -n "$RCP_COMMAND" ] || RCP_COMMAND='scp ${files} ${root}@${system}:${destination}' case $MANGLE_ENABLED in Yes|yes) ;; No|no) MANGLE_ENABLED= ;; *) if [ -n "$MANGLE_ENABLED" ]; then fatal_error "Invalid MANGLE_ENABLED setting ($MANGLE_ENABLED)" fi ;; esac case $AUTOMAKE in Yes|yes) AUTOMAKE=1 ;; No|no) AUTOMAKE= ;; [1-9]) ;; [1-9][0-9]) ;; [Rr]ecursive) AUTOMAKE=recursive ;; *) if [ -n "$AUTOMAKE" ]; then fatal_error "Invalid AUTOMAKE setting ($AUTOMAKE)" fi ;; esac if [ -n "$WORKAROUNDS" ]; then case $WORKAROUNDS in [Yy]es) ;; [Nn]o) WORKAROUNDS='' ;; *) fatal_error "Invalid setting ($WORKAROUNDS) for WORKAROUNDS" ;; esac fi g_loopback=$(find_loopback_interfaces) [ -n "$PAGER" ] || PAGER=$DEFAULT_PAGER if [ -z "$g_nopager" ]; then if [ -n "$PAGER" -a -t 1 ]; then case $PAGER in /*) g_pager="$PAGER" [ -f "$g_pager" ] || fatal_error "PAGER $PAGER does not exist" ;; *) g_pager=$(mywhich $PAGER 2> /dev/null) [ -n "$g_pager" ] || fatal_error "PAGER $PAGER not found" ;; esac [ -x "$g_pager" ] || fatal_error "PAGER $g_pager is not executable" g_pager="2>&1 | $g_pager" fi fi if [ -n "$DYNAMIC_BLACKLIST" -a "$(id -u)" = 0 ]; then case $COMMAND in blacklist*|allow|drop|logdrop|reject) setup_dbl ;; esac fi if [ -z "$PERL_HASH_SEED" ]; then PERL_HASH_SEED=0 else case $PERL_HASH_SEED in [0-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]|random) ;; *) fatal_error "Invalid setting ($PERL_HASH_SEED) for PERL_HASH_SEED" ;; esac fi lib=$(find_file lib.cli-user) [ -f $lib ] && . $lib } # # Ensure that the effective UID is 0 or that we are dealing with a private configuration # ensure_root() { if [ $(id -u) -ne 0 ]; then if [ -z "$g_shorewalldir" -o "$g_shorewalldir" = $CONFDIR/$PRODUCT ]; then startup_error "Ordinary users may not $COMMAND the default $PRODUCT configuration" fi fi } # # Determine if there are config files newer than the passed object # uptodate() { [ -x $1 ] || return 1 local dir local busybox local find find=$(mywhich find) [ -n "${find}" ] || return 1 [ -h "${find}" ] && busybox=Yes find="${find} -L" for dir in $g_shorewalldir $(split $CONFIG_PATH); do if [ -n "${busybox}" ]; then # # Busybox 'find' doesn't support -quit. # if [ $AUTOMAKE = recursive ]; then if [ -n "$(${find} ${dir} -newer $1 -print)" ]; then return 1; fi elif [ -n "$(${find} ${dir} -maxdepth $AUTOMAKE -type f -newer $1 -print)" ]; then return 1; fi elif [ "$AUTOMAKE" = recursive ]; then if [ -n "$(${find} ${dir} -newer $1 -print -quit)" ]; then return 1; fi elif [ -z "$AUTOMAKE" ]; then if [ -n "$(${find} ${dir} -maxdepth 1 -type f -newer $1 -print -quit)" ]; then return 1; fi elif [ -n "$(${find} ${dir} -maxdepth $AUTOMAKE -type f -newer $1 -print -quit)" ]; then return 1; fi done return 0 } # # Run the postcompile user exit # run_postcompile() { # $1 is the compiled script local script script=$(find_file postcompile) if [ -f $script ]; then . $script $1 else return 0 fi } # # Run the compiler # compiler() { local pc local shorewallrc local shorewallrc1 local options pc=${LIBEXECDIR}/shorewall/compiler.pl ensure_root # # Let params and the compiler know the base configuration directory # if [ -n "$g_shorewalldir" ]; then SW_CONFDIR="$g_shorewalldir" else SW_CONFDIR="$g_confdir" fi export SW_CONFDIR # # We've now set g_shorewalldir so recalculate CONFIG_PATH # [ -n "$g_haveconfig" ] || ensure_config_path # # Get the config from $g_shorewalldir # get_config Yes case $COMMAND in *start|try|reload|restart|safe-*) ;; *) STARTUP_LOG= LOG_VERBOSITY=-1 ;; esac debugflags="-w" [ -n "$g_debug" ] && debugflags='-wd' [ -n "$g_profile" ] && debugflags='-wd:NYTProf' # Perl compiler only takes the output file as a argument [ "$1" = debug -o "$1" = trace ] && shift; [ "$1" = nolock ] && shift; shift shorewallrc=${g_basedir}/shorewallrc if [ -n "$g_export" ]; then shorewallrc1=$(find_file shorewallrc) [ -f "$shorewallrc1" ] || fatal_error "Compiling for export requires a shorewallrc file" fi if [ -n "$g_conditional" ] && uptodate "$g_file"; then echo "$g_file is up to date -- no compilation required" g_compiled="$g_file" return 0 fi options="--verbose=$VERBOSITY --family=$g_family --config_path=$CONFIG_PATH --shorewallrc=${shorewallrc}" [ -n "$shorewallrc1" ] && options="$options --shorewallrc1=${shorewallrc1}" [ -n "$STARTUP_LOG" ] && options="$options --log=$STARTUP_LOG" [ -n "$LOG_VERBOSITY" ] && options="$options --log_verbosity=$LOG_VERBOSITY"; [ -n "$g_export" ] && options="$options --export" [ -n "$g_shorewalldir" ] && options="$options --directory=$g_shorewalldir" [ -n "$g_timestamp" ] && options="$options --timestamp" [ -n "$g_test" ] && options="$options --test" [ -n "$g_preview" ] && options="$options --preview" [ -n "$g_trace" ] && options="$options --debug" [ -n "$g_confess" ] && options="$options --confess" [ -n "$g_update" ] && options="$options --update" [ -n "$g_annotate" ] && options="$options --annotate" if [ -n "$PERL" ]; then if [ ! -x "$PERL" ]; then echo " WARNING: The program specified in the PERL option does not exist or is not executable; falling back to /usr/bin/perl" >&2 PERL=/usr/bin/perl fi else PERL=/usr/bin/perl fi case "$g_doing" in Compiling|Checking) progress_message3 "$g_doing using Shorewall $SHOREWALL_VERSION..." ;; Updating) progress_message3 "Updating $g_product configuration to $SHOREWALL_VERSION..." ;; *) [ -n "$g_doing" ] && progress_message3 "$g_doing using Shorewall $SHOREWALL_VERSION..." ;; esac # # Only use the pager if 'trace' or -r was specified and -d was not # [ -z "$g_trace" -a -z "$g_preview" ] || [ -n "$g_debug" ] && g_pager= case $PERL_HASH_SEED in random) unset PERL_HASH_SEED unset PERL_PERTURB_KEYS ;; *) export PERL_HASH_SEED PERL_PERTURB_KEYS=0 export PERL_PERTURB_KEYS ;; esac if [ ${PERLLIBDIR} = ${LIBEXECDIR}/shorewall ]; then eval $PERL $debugflags $pc $options $@ $g_pager else eval PERL5LIB=${PERLLIBDIR} $PERL $debugflags $pc $options $@ $g_pager fi status=$? if [ $status -eq 0 -a $COMMAND != check -a $COMMAND != update ]; then g_compiled="$g_file" run_postcompile "$g_compiled" return fi return $status } # # Start Command Executor # std_start_command() { local finished finished=0 local rc rc=0 if product_is_started; then error_message "Shorewall is already running" exit 0 fi [ -n "$STARTUP_ENABLED" ] || not_configured_error "Startup is disabled" while [ $finished -eq 0 -a $# -gt 0 ]; do option=$1 case $option in -*) option=${option#-} while [ -n "$option" ]; do case $option in -) finished=1 option= ;; d*) g_debug=Yes option=${option#d} ;; f*) g_fast=Yes option=${option#f} ;; p*) [ -n "$(which conntrack)" ] || fatal_error "The '-p' option requires the conntrack utility which does not appear to be installed on this system" g_purge=Yes option=${option%p} ;; c*) AUTOMAKE= option=${option#c} ;; T*) g_confess=Yes option=${option#T} ;; C*) g_counters=Yes option=${option#C} ;; D*) g_trace=Yes option=${option#D} ;; *) option_error $option ;; esac done shift ;; *) finished=1 ;; esac done case $# in 0) ;; 1) [ -n "$g_shorewalldir" ] && fatal_error "A directory has already been specified: $1" [ -n "$g_fast" ] && fatal_error "Directory may not be specified with the -f option" if [ ! -d $1 ]; then if [ -e $1 ]; then fatal_error "$1 is not a directory" else fatal_error "Directory $1 does not exist" fi fi g_shorewalldir=$(resolve_file $1) AUTOMAKE= ;; *) too_many_arguments $2 ;; esac if [ -n "${g_fast}${AUTOMAKE}" ]; then if ! uptodate $g_firewall; then g_fast= AUTOMAKE= fi fi if [ -n "$AUTOMAKE" ]; then [ -n "$g_nolock" ] || mutex_on run_it $g_firewall start rc=$? [ -n "$g_nolock" ] || mutex_off else g_file="${VARDIR}/.start" if compiler compile "$g_file"; then [ -n "$g_nolock" ] || mutex_on run_it ${VARDIR}/.start start rc=$? [ -n "$g_nolock" ] || mutex_off else rc=$? mylogger kern.err "ERROR:$g_product start failed" fi fi exit $rc } # # Compile Command Executor # compile_command() { local finished finished=0 while [ $finished -eq 0 ]; do [ $# -eq 0 ] && break option=$1 case $option in -*) shift option=${option#-} while [ -n "$option" ]; do case $option in e*) g_export=Yes g_shorewalldir='.' option=${option#e} ;; p*) g_profile=Yes option=${option#p} ;; t*) g_test=Yes option=${option#t} ;; d*) g_debug=Yes; option=${option#d} ;; c*) g_conditional=Yes; option=${option#c} ;; T*) g_confess=Yes option=${option#T} ;; D*) g_trace=Yes option=${option#D} ;; -) finished=1 option= ;; *) option_error $option ;; esac done ;; *) finished=1 ;; esac done g_file= case $# in 0) [ -n "$g_export" ] && g_file=firewall || g_file=$g_firewall ;; 1) g_file=$1 [ -d "$g_file" ] && fatal_error "$g_file is a directory" ;; 2) [ -n "$g_shorewalldir" -a -z "$g_export" ] && fatal_error "A directory has already been specified: $1" if [ ! -d $1 ]; then if [ -e $1 ]; then fatal_error "$1 is not a directory" else fatal_error "Directory $1 does not exist" fi fi g_shorewalldir=$(resolve_file $1) g_file=$2 ;; *) too_many_arguments $3 ;; esac [ "x$g_file" = x- ] && g_doing='' compiler compile "$g_file" } # # Check Command Executor # check_command() { local finished finished=0 while [ $finished -eq 0 -a $# -gt 0 ]; do option=$1 case $option in -*) option=${option#-} while [ -n "$option" ]; do case $option in -) finished=1 option= ;; e*) g_export=Yes g_shorewalldir='.' option=${option#e} ;; p*) g_profile=Yes option=${option#p} ;; t*) g_test=Yes option=${option#t} ;; d*) g_debug=Yes; option=${option#d} ;; r*) g_preview=Yes option=${option#r} ;; T*) g_confess=Yes option=${option#T} ;; D*) g_trace=Yes option=${option#D} ;; *) option_error $option ;; esac done shift ;; *) finished=1 ;; esac done case $# in 0) ;; 1) [ -n "$g_shorewalldir" -a -z "$g_export" ] && fatal_error "A directory has already been specified: $1" if [ ! -d $1 ]; then if [ -e $1 ]; then fatal_error "$1 is not a directory" else fatal_error "Directory $1 does not exist" fi fi g_shorewalldir=$(resolve_file $1) ;; *) too_many_arguments $2 ;; esac g_doing="Checking" compiler check } # # Update Command Executor # update_command() { local finished finished=0 g_update=Yes while [ $finished -eq 0 -a $# -gt 0 ]; do option=$1 case $option in -*) option=${option#-} while [ -n "$option" ]; do case $option in -) finished=1 option= ;; e*) g_export=Yes option=${option#e} ;; p*) g_profile=Yes option=${option#p} ;; t*) g_test=Yes option=${option#t} ;; d*) g_debug=Yes; option=${option#d} ;; r*) g_preview=Yes option=${option#r} ;; T*) g_confess=Yes option=${option#T} ;; a*) g_annotate=Yes option=${option#a} ;; A*) option=${option#A} ;; D*) g_trace=Yes option=${option#D} ;; *) option_error $option ;; esac done shift ;; *) finished=1 ;; esac done case $# in 0) ;; 1) [ -n "$g_shorewalldir" ] && fatal_error "A directory has already been specified: $1" if [ ! -d $1 ]; then if [ -e $1 ]; then fatal_error "$1 is not a directory" else fatal_error "Directory $1 does not exist" fi fi g_shorewalldir=$(resolve_file $1) ;; *) too_many_arguments $2 ;; esac g_doing="Updating" compiler check } # # Reload/Restart Command Executor # std_restart_command() { local finished finished=0 local rc rc=0 local restorefile while [ $finished -eq 0 -a $# -gt 0 ]; do option=$1 case $option in -*) option=${option#-} while [ -n "$option" ]; do case $option in -) finished=1 option= ;; d*) g_debug=Yes option=${option#d} ;; f*) g_fast=Yes option=${option#f} ;; c*) AUTOMAKE= option=${option#c} ;; n*) g_noroutes=Yes option=${option#n} ;; p*) [ -n "$(which conntrack)" ] || fatal_error "The '-p' option requires the conntrack utility which does not appear to be installed on this system" g_purge=Yes option=${option%p} ;; T*) g_confess=Yes option=${option#T} ;; i*) option=${option#i} ;; C*) g_counters=Yes option=${option#C} ;; D*) g_trace=Yes option=${option#D} ;; *) option_error $option ;; esac done shift ;; *) finished=1 ;; esac done case $# in 0) ;; 1) [ -n "$g_shorewalldir" ] && fatal_error "A directory has already been specified: $1" if [ ! -d $1 ]; then if [ -e $1 ]; then fatal_error "$1 is not a directory" else fatal_error "Directory $1 does not exist" fi fi g_shorewalldir=$(resolve_file $1) [ -n "$g_fast" ] && fatal_error "Directory may not be specified with the -f option" AUTOMAKE= ;; *) too_many_arguments $2 ;; esac [ -n "$STARTUP_ENABLED" ] || not_configured_error "Startup is disabled" if [ -z "$g_fast" -a -n "$AUTOMAKE" ]; then uptodate $g_firewall && g_fast=Yes fi g_file="${VARDIR}/.${COMMAND}" if [ -z "$g_fast" ]; then if compiler compile "$g_file"; then [ -n "$g_nolock" ] || mutex_on run_it ${VARDIR}/.${COMMAND} ${COMMAND} rc=$? [ -n "$g_nolock" ] || mutex_off else rc=$? mylogger kern.err "ERROR:$g_product ${COMMAND} failed" fi else [ -x $g_firewall ] || fatal_error "No $g_firewall file found" [ -n "$g_nolock" ] || mutex_on run_it $g_firewall $COMMAND rc=$? [ -n "$g_nolock" ] || mutex_off fi return $rc } read_yesno_with_timeout() { local timeout timeout=${1:-60} case $timeout in *s) ;; *m) timeout=$((${timeout%m} * 60)) ;; *h) timeout=$((${timeout%h} * 3600)) ;; esac read -t $timeout yn 2> /dev/null if [ $? -eq 2 ] then # read doesn't support timeout test -x /bin/bash || return 2 # bash is not installed so the feature is not available /bin/bash -c "read -t $timeout yn ; if [ \"\$yn\" == \"y\" ] ; then exit 0 ; else exit 1 ; fi" # invoke bash and use its version of read return $? else # read supports timeout case "$yn" in y|Y) return 0 ;; *) return 1 ;; esac fi } # # Safe-start/safe-reload/safe-restart Command Executor # safe_commands() { local finished finished=0 local command local timeout timeout=60 # test is the shell supports timed read read -t 0 junk 2> /dev/null if [ $? -eq 2 -a ! -x /bin/bash ];then echo "Your shell does not support a feature required to execute this command". exit 2 fi while [ $finished -eq 0 -a $# -gt 0 ]; do option=$1 case $option in -*) option=${option#-} while [ -n "$option" ]; do case $option in -) finished=1 option= ;; n*) g_noroutes=Yes option=${option#n} ;; t) [ $# -eq 1 ] && fatal_error "The -t option requires a timeout value" echo $2 | egrep -q '[[:digit:]]+[smh]' || fatal_error "The timeout value must be numeric, optionally followed by a suffix (s, m or h)" timeout=$2 option= shift; ;; *) option_error $option ;; esac done shift ;; *) finished=1 ;; esac done case $# in 0) ;; 1) [ -n "$g_shorewalldir" ] && fatal_error "A directory has already been specified: $1" if [ ! -d $1 ]; then if [ -e $1 ]; then fatal_error "$1 is not a directory" else fatal_error "Directory $1 does not exist" fi fi g_shorewalldir=$(resolve_file $1) ;; *) too_many_arguments $2 ;; esac [ -n "$STARTUP_ENABLED" ] || not_configured_error "Startup is disabled" if product_is_started; then running=Yes else running= fi if [ "$COMMAND" = "safe-start" -a -n "$running" ]; then # the command is safe-start but the firewall is already running error_message "Shorewall is already started" exit 0 fi if [ "$COMMAND" = "safe-start" -o -z "$running" ]; then # the command is safe-start or shorewall[6] is not started yet command="start" else # the command is safe-reload or safe-restart and the firewall is already running command="${COMMAND#safe-}" fi g_file="${VARDIR}/.$command" if ! compiler compile "$g_file"; then status=$? exit $status fi case $command in start) RESTOREFILE=NONE progress_message3 "Starting..." ;; reload) RESTOREFILE=.safe g_restorepath=${VARDIR}/.safe save_config progress_message3 "Reloading..." ;; restart) RESTOREFILE=.safe g_restorepath=${VARDIR}/.safe save_config progress_message3 "Restarting..." ;; esac [ -n "$g_nolock" ] || mutex_on if run_it ${VARDIR}/.$command $command; then printf "Do you want to accept the new firewall configuration? [y/n] " if read_yesno_with_timeout $timeout ; then echo "New configuration has been accepted" else if [ "$command" = "restart" -o "$command" = "reload" ]; then run_it ${VARDIR}/.safe -r restore else run_it ${VARDIR}/.$command clear fi [ -n "$g_nolock" ] || mutex_off echo "New configuration has been rejected and the old one restored" exit 2 fi fi [ -n "$g_nolock" ] || mutex_off } # # 'try' Command Executor # try_command() { local finished finished=0 local timeout timeout= handle_directory() { [ -n "$g_shorewalldir" ] && fatal_error "A directory has already been specified: $1" if [ ! -d $1 ]; then if [ -e $1 ]; then fatal_error "$1 is not a directory" else fatal_error "Directory $1 does not exist" fi fi g_shorewalldir=$(resolve_file $1) } while [ $finished -eq 0 -a $# -gt 0 ]; do option=$1 case $option in -*) option=${option#-} while [ -n "$option" ]; do case $option in -) finished=1 option= ;; n*) g_noroutes=Yes option=${option#n} ;; *) option_error $option ;; esac done shift ;; *) finished=1 ;; esac done case $# in 0) missing_argument ;; 1) handle_directory $1 ;; 2) handle_directory $1 echo $2 | egrep -q '[[:digit:]]+[smh]' || fatal_error "The timeout value must be numeric, optionally followed by a suffix (s, m or h)" timeout=$2 ;; *) too_many_arguments $3 ;; esac [ -n "$STARTUP_ENABLED" ] || not_configured_error "Startup is disabled" if product_is_started; then running=Yes else running= fi if [ -z "$running" ]; then # shorewall[6] is not started yet command="start" else # the firewall is already running command="reload" fi g_file="${VARDIR}/.$command" if ! compiler compile "$g_file"; then status=$? exit $status fi run_postcompile ${VARDIR}/.restart case $command in start) RESTOREFILE=NONE progress_message3 "Starting..." ;; reload) RESTOREFILE=.try g_restorepath=${VARDIR}/.try save_config progress_message3 "Reloading..." ;; esac [ -n "$g_nolock" ] || mutex_on if run_it ${VARDIR}/.$command $command && [ -n "$timeout" ]; then sleep $timeout if [ "$command" = "reload" ]; then run_it ${VARDIR}/.try restore else run_it ${VARDIR}/.$command clear fi fi [ -n "$g_nolock" ] || mutex_off return 0 } rsh_command() { command="$*" eval $RSH_COMMAND } rcp_command() { files="$1" destination=$2 eval $RCP_COMMAND } # # Remote-{getcaps|getrc} command executer # remote_capture() # $* = original arguments less the command. { local verbose verbose=$(make_verbose) local finished finished=0 local system local getrc getrc= local getcaps getcaps= local remote_sw_dir_path remote_sw_dir_path= local root root=root local libexec libexec=${LIBEXECDIR} while [ $finished -eq 0 -a $# -gt 0 ]; do option=$1 case $option in -*) option=${option#-} while [ -n "$option" ]; do case $option in -) finished=1 option= ;; R*) getrc=Yes option=${option#R} ;; c*) getcaps=Yes option=${option#c} ;; r) [ $# -gt 1 ] || fatal_error "Missing Root User name" root=$2 option= shift ;; D) [ $# -gt 1 ] || fatal_error "Missing directory name" g_shorewalldir=$2 option= shift ;; p) [ $# -gt 1 ] || fatal_error "Missing directory name" remote_sw_dir_path=$2 option= shift ;; T*) g_confess=Yes option=${option#T} ;; *) option_error $option ;; esac done shift ;; *) finished=1 ;; esac done case $# in 0) [ -n "$g_shorewalldir" ] || g_shorewalldir='.' ;; 1) g_shorewalldir="." system=$1 ;; 2) g_shorewalldir=$1 system=$2 ;; *) too_many_arguments $3 ;; esac g_export=Yes ensure_config_path get_config Yes g_haveconfig=Yes if [ -z "$system" ]; then system=$FIREWALL [ -n "$system" ] || fatal_error "No system name given and the FIREWALL option is not set" fi case $COMMAND in remote-getrc) getrc=Yes ;; remote-getcaps) getcaps=Yes ;; esac [ -n "$getcaps" ] && getrc=Yes if [ -n "$getrc" -o ! -s $g_shorewalldir/shorewallrc ]; then progress_message2 "Getting shorewallrc file on system $system..." if [ -n "$remote_sw_dir_path" ]; then if ! rsh_command "/sbin/shorewall-lite show rc $remote_sw_dir_path" > $g_shorewalldir/shorewallrc; then fatal_error "Capturing RC file on system $system failed" fi elif ! rsh_command "/sbin/shorewall-lite show rc" > $g_shorewalldir/shorewallrc; then fatal_error "Capturing RC file on system $system failed" fi fi remote_sw_dir_path= if [ -n "$getcaps" -o ! -s $g_shorewalldir/capabilities ]; then if [ -f $g_shorewalldir/shorewallrc -a -s $g_shorewalldir/shorewallrc ]; then . $g_shorewalldir/shorewallrc libexec="$LIBEXECDIR" [ -n "$DONT_LOAD" ] && DONT_LOAD="$(echo $DONT_LOAD | tr ',' ' ')" progress_message2 "Getting Capabilities on system $system..." if [ $g_family -eq 4 ]; then if ! rsh_command "MODULESDIR=$MODULESDIR IPTABLES=$IPTABLES DONT_LOAD=\"$DONT_LOAD\" $libexec/shorewall-lite/shorecap" > $g_shorewalldir/capabilities; then fatal_error "Capturing capabilities on system $system failed" fi elif ! rsh_command "MODULESDIR=$MODULESDIR IP6TABLES=$IP6TABLES DONT_LOAD=\"$DONT_LOAD\" $libexec/shorewall6-lite/shorecap" > $g_shorewalldir/capabilities; then fatal_error "Capturing capabilities on system $system failed" fi else fatal_error "$g_shorewalldir/shorewallrc is not present." fi fi } # # Remote-{start|reload|restart} command executor # remote_commands() # $* = original arguments less the command. { local verbose verbose=$(make_verbose) local file file= local capabilities capabilities= local finished finished=0 local saveit saveit= local result local system local getcaps getcaps= local root root=root local libexec libexec=${LIBEXECDIR} local confdir confdir=${CONFDIR} local sbindir sbindir=${SBINDIR} local sharedir sharedir=${SHAREDIR} local litedir local exitstatus local program while [ $finished -eq 0 -a $# -gt 0 ]; do option=$1 case $option in -*) option=${option#-} while [ -n "$option" ]; do case $option in -) finished=1 option= ;; s*) saveit=Yes option=${option#s} ;; c*) getcaps=Yes option=${option#c} ;; r) [ $# -gt 1 ] || fatal_error "Missing Root User name" root=$2 option= shift ;; D) [ $# -gt 1 ] || fatal_error "Missing directory name" g_shorewalldir=$2 option= shift ;; T*) g_confess=Yes option=${option#T} ;; D*) g_trace=Yes option=${option#D} ;; *) option_error $option ;; esac done shift ;; *) finished=1 ;; esac done case $# in 0) [ -n "$g_shorewalldir" ] || g_shorewalldir='.' ;; 1) g_shorewalldir="." system=$1 ;; 2) g_shorewalldir=$1 system=$2 ;; *) too_many_arguments $3 ;; esac if [ -f $g_shorewalldir/shorewallrc ]; then . $g_shorewalldir/shorewallrc sbindir="$SBINDIR" confdir="$CONFDIR" libexec="$LIBEXECDIR" litedir="${VARDIR}-lite" . $sharedir/shorewall/shorewallrc else error_message " WARNING: $g_shorewalldir/shorewallrc does not exist; using settings from $g_basedir/shorewalrc" >&2 sbindir="$SBINDIR" confdir="$CONFDIR" libexec="$LIBEXECDIR" litedir="${VARDIR}-lite" fi g_export=Yes ensure_config_path get_config Yes g_haveconfig=Yes if [ -z "$system" ]; then system=$FIREWALL [ -n "$system" ] || fatal_error "No system name given and the FIREWALL option is not set" fi if [ -z "$getcaps" ]; then capabilities=$(find_file capabilities) [ ! -f $capabilities -o ! -s $capabilities ] && getcaps=Yes fi if [ -n "$getcaps" ]; then [ -n "$DONT_LOAD" ] && DONT_LOAD="$(echo $DONT_LOAD | tr ',' ' ')" progress_message2 "Getting Capabilities on system $system..." if [ $g_family -eq 4 ]; then if ! rsh_command "MODULESDIR=$MODULESDIR IPTABLES=$IPTABLES DONT_LOAD=\"$DONT_LOAD\" $libexec/shorewall-lite/shorecap" > $g_shorewalldir/capabilities; then fatal_error "Capturing capabilities on system $system failed" fi elif ! rsh_command "MODULESDIR=$MODULESDIR IP6TABLES=$IP6TABLES DONT_LOAD=\"$DONT_LOAD\" $libexec/shorewall6-lite/shorecap" > $g_shorewalldir/capabilities; then fatal_error "Capturing capabilities on system $system failed" fi fi file=$(resolve_file $g_shorewalldir/firewall) program=$sbindir/${PRODUCT}-lite # # Handle nonstandard remote VARDIR # progress_message3 "Getting VARDIR on system $system..." temp=$(rsh_command $program show config 2> /dev/null | grep ^LITEDIR | sed 's/LITEDIR is //') [ -n "$temp" ] && litedir="$temp" g_file="$g_shorewalldir/firewall" exitstatus=0 if compiler compiler "$g_file"; then progress_message3 "Copying $file and ${file}.conf to ${system}:${litedir}..." if rcp_command "$g_shorewalldir/firewall $g_shorewalldir/firewall.conf" ${litedir}; then save=$(find_file save); if [ -f $save ]; then progress_message3 "Copying $save to ${system}:${confdir}/${PRODUCT}-lite/" rcp_command $save ${confdir}/$PRODUCT/ exitstatus=$? fi if [ $exitstatus -eq 0 ]; then progress_message3 "Copy complete" if [ $COMMAND = remote-reload ]; then if rsh_command "$program $verbose $timestamp reload"; then progress_message3 "System $system reloaded" else exitstatus=$? savit= fi elif [ $COMMAND = remote-restart ]; then if rsh_command "$program $verbose $timestamp restart"; then progress_message3 "System $system restarted" else exitstatus=$? saveit= fi elif rsh_command "$program $verbose $timestamp start"; then progress_message3 "System $system started" else exitstatus=$? saveit= fi if [ -n "$saveit" ]; then if rsh_command "$program $verbose $timestamp save"; then progress_message3 "Configuration on system $system saved" else exitstatus=$? fi fi fi else exitstatus=$? fi else exitstatus=$? fi return $exitstatus } # # Export command executor # export_command() # $* = original arguments less the command. { local verbose verbose=$(make_verbose) local file file= local finished finished=0 local target while [ $finished -eq 0 -a $# -gt 0 ]; do option=$1 case $option in -*) option=${option#-} while [ -n "$option" ]; do case $option in -) finished=1 option= ;; *) fatal_error "Unrecognized option \"$option\"" ;; esac done shift ;; *) finished=1 ;; esac done case $# in 1) g_shorewalldir="." target=$1 ;; 2) g_shorewalldir=$1 target=$2 ;; *) fatal_error "Invalid command syntax (\"man shorewall\" for help)" ;; esac case $target in *:*) ;; *) target=$target: ;; esac file=$(resolve_file $g_shorewalldir/firewall) g_export=Yes g_file="$g_shorewalldir/firewall" if compiler compile "$g_file" && \ echo "Copying $file and ${file}.conf to ${target#*@}..." && \ scp $g_shorewalldir/firewall $g_shorewalldir/firewall.conf $target then save=$(find_file save); [ -f $save ] && progress_message3 "Copying $save to ${target#*}..." && rcp_command $save $target progress_message3 "Copy complete" fi } run_command() { if [ -x $g_firewall ] ; then uptodate $g_firewall || echo " WARNING: $g_firewall is not up to date" >&2 run_it $g_firewall $@ else fatal_error "$g_firewall does not exist or is not executable" fi } compiler_command() { case $COMMAND in compile|co) shift compile_command $@ ;; check|ck) shift check_command $@ ;; update) shift update_command $@ ;; remote-start|remote-reload|remote-restart) shift remote_commands $@ ;; export) shift export_command $@ ;; try) only_root get_config Yes shift try_command $@ ;; safe-reload|safe-restart|safe-start) only_root get_config Yes shift safe_commands $@ ;; remote-getrc|remote-getcaps) shift remote_capture $@ ;; *) fatal_error "Invalid command: $COMMAND" ;; esac }