#!/bin/sh
# Shell script for interacting with config files
#
-# Copyright (C) 2006 by Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
-# Copyright (C) 2006 by Felix Fietkau <nbd@openwrt.org>
+# Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
+# Copyright (C) 2006,2007 Felix Fietkau <nbd@openwrt.org>
#
# 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
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-. /etc/functions.sh
-include /lib/config
+. $UCI_ROOT/etc/functions.sh
+include $UCI_ROOT/lib/config
SEP="[^0-9A-Za-z_]"
exit 1
}
- for package in ${PACKAGE:-$(cd /etc/config; ls)}; do
+ for package in ${PACKAGE:-$(cd $UCI_ROOT/etc/config; ls)}; do
SECTION=""
config_cb() {
done
}
+do_validate() {
+ [ "$#" -ne 1 ] && {
+ uci_usage validate
+ exit 1
+ }
+ uci_validate "$1" || exit "$?"
+}
+
uci_usage() {
case "$1" in
show) echo "$0 show [<package>[.<config>]]";;
del) echo "$0 del <package>.<config>[.<option>]";;
rename) echo "$0 rename <package> <config> <name>";;
commit) echo "$0 commit [<package> ... ]";;
+ validate) echo "$0 validate <package>";;
*)
echo "Syntax: $0 <command> <arguments...>"
echo
uci_usage del
uci_usage rename
uci_usage commit
+ uci_usage validate
echo
exit 1
;;
exit 0
fi
-local CMD="$1"
+CMD="$1"
shift
case "$CMD" in
set) do_set "$@";;
get) do_get "$@";;
show) do_show "$@";;
commit) do_commit "$@";;
+ validate) do_validate "$@";;
*) uci_usage;;
esac
exit 0
"
_C=0
+NO_EXPORT=1
hotplug_dev() {
env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug net
local value="$2"
local sep="${3:- }"
- eval "export -n -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
+ eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
}
reset_cb() {
local cfgtype="$1"
local name="$2"
- CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1))
+ export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1))
name="${name:-cfg$CONFIG_NUM_SECTIONS}"
append CONFIG_SECTIONS "$name"
config_cb "$cfgtype" "$name"
- CONFIG_SECTION="$name"
- export -n "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype"
+ export ${NO_EXPORT:+-n} CONFIG_SECTION="$name"
+ export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype"
}
option () {
local varname="$1"; shift
local value="$*"
- export -n "CONFIG_${CONFIG_SECTION}_${varname}=$value"
+ export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_${varname}=$value"
option_cb "$varname" "$*"
}
for oldvar in `set | grep ^CONFIG_${OLD}_ | \
sed -e 's/\(.*\)=.*$/\1/'` ; do
newvar="CONFIG_${NEW}_${oldvar##CONFIG_${OLD}_}"
- eval "export -n \"$newvar=\${$oldvar}\""
+ eval "export ${NO_EXPORT:+-n} \"$newvar=\${$oldvar}\""
unset "$oldvar"
done
- CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , $NEW ,")"
+ export ${NO_EXPORT:+-n} CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , $NEW ,")"
- [ "$CONFIG_SECTION" = "$OLD" ] && CONFIG_SECTION="$NEW"
+ [ "$CONFIG_SECTION" = "$OLD" ] && export ${NO_EXPORT:+-n} CONFIG_SECTION="$NEW"
}
config_unset() {
local SECTION="$1"
local oldvar
- CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , ,")"
- CONFIG_SECTIONS="${SECTION:+$CONFIG_SECTIONS}"
+ export ${NO_EXPORT:+-n} CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , ,")"
+ export ${NO_EXPORT:+-n} CONFIG_SECTIONS="${SECTION:+$CONFIG_SECTIONS}"
for oldvar in `set | grep ^CONFIG_${SECTION:+${SECTION}_} | \
sed -e 's/\(.*\)=.*$/\1/'` ; do
}
config_load() {
- local file="/etc/config/$1"
+ local file="$UCI_ROOT/etc/config/$1"
_C=0
- CONFIG_SECTIONS=
- CONFIG_NUM_SECTIONS=0
- CONFIG_SECTION=
+ export ${NO_EXPORT:+-n} CONFIG_SECTIONS=
+ export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=0
+ export ${NO_EXPORT:+-n} CONFIG_SECTION=
[ -e "$file" ] && {
. $file
config_get() {
case "$3" in
"") eval "echo \"\${CONFIG_${1}_${2}}\"";;
- *) eval "export -n -- \"$1=\${CONFIG_${2}_${3}}\"";;
+ *) eval "export ${NO_EXPORT:+-n} -- \"$1=\${CONFIG_${2}_${3}}\"";;
esac
}
local section="$1"
local option="$2"
local value="$3"
- export -n "CONFIG_${section}_${option}=$value"
+ export ${NO_EXPORT:+-n} "CONFIG_${section}_${option}=$value"
}
config_foreach() {
val="${val#$tmp$2}"
- export -n "$1=$tmp"; count=$((count+1))
+ export ${NO_EXPORT:+-n} "$1=$tmp"; count=$((count+1))
shift 2
done
if [ $# -gt 0 -a "$val" ]; then
- export -n "$1=$val"; count=$((count+1))
+ export ${NO_EXPORT:+-n} "$1=$val"; count=$((count+1))
fi
return $count
--- /dev/null
+# AWK file for parsing uci specification files
+#
+# Copyright (C) 2006 by Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
+#
+# 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+#
+# general: unfortunately, the development was done using gawk providing
+# a different match() functions than e.g. mawk on debian systems
+# - therefore, the script was changed to run on most awk's
+# - even things like [:space:] are not used
+#
+# - script parses the config section definition contained in one
+# specification file
+# global variables:
+# * section - contains the current config section name
+# * var - contains the name of the current config option
+# * type - contains the type of the current config option
+# * required - contains the requirements of the current config option
+# * optional - contains the optional scope of the current config option
+# * vars[] - array, contains the name of all config options valid within
+# a certain config section, format: csv
+#
+# XXX todo: more than one config option with the same in different section
+# will clash for the following tables
+# * types[] - contains the type of a config option
+# * reqs[] - contains the requirements of a config option
+# * opts[] - contains the optional scope of a config option
+#
+BEGIN {
+ section_count=1
+ section = ""
+ simple_types = "int|ip|netmask|string|wep|hostname|mac|port|ports|wpapsk"
+}
+
+# function print_specification
+# - prints all information about the created tables containing the
+# specification
+function print_specification() {
+ for (section in vars) {
+ printf("%s\n",section);
+ split(vars[section],arr,",")
+ for (idx in arr) {
+ printf("\t%s[%s]",arr[idx],types[section "_" arr[idx]]);
+ if (length(reqs[section "_" arr[idx]])) {
+ if (reqs[section "_" arr[idx]]==1) {
+ printf(",req");
+ }else{
+ printf(", req(%s)", reqs[section "_" arr[idx]]);
+ }
+ }
+ if (length(opts[section "_" arr[idx]])) {
+ printf(", opt(%s)", opts[section "_" arr[idx]]);
+ }
+ printf("\n");
+ }
+ }
+}
+
+
+function reset_option() {
+ # just set global variables parsed on one line back to defaults
+ var = ""
+ type = ""
+ required = ""
+ optional = ""
+ found = 0
+}
+
+function store_option() {
+ # save all information about a config option parsed from the spec file
+ # to the relevant tables for future use
+
+ # first check minimum requirements for storing information
+ if (!length(section)) {
+ print STDERR "line " NR ": section definition missing"
+ exit 1
+ }
+ if (!length(var)) {
+ print STDERR "line " NR ": invalid config option name"
+ exit 1
+ }
+ if (!length(type)) {
+ print STDERR "line " NR ": invalid config option type"
+ exit 1
+ }
+
+ # add config options to the names of options available for this
+ # section
+ if (exists[section]!=1) {
+ section_names[section_count] = section
+ section_count++
+ exists[section] = 1
+ vars[section] = var
+ } else {
+ vars[section] = vars[section] "," var
+ }
+
+ # save the type, the requirements and the optional scope of the
+ # config option
+ types[section "_" var] = type
+ reqs[section "_" var] = required
+ opts[section "_" var] = optional
+}
+
+/^declare -x|^export/ {
+ sub(/^declare -x /,"")
+ sub(/^export /,"")
+ split($0,arr,"=")
+ val=substr(arr[2],2,length(arr[2])-2)
+ ENVIRON[arr[1]] = val
+ next
+}
+
+# main parsing function
+# this is done in one function block to allow multiple semicolon separated
+# definitions on one line
+{
+ # replace leading/trailing white space
+ gsub("^[ \t\n]+","");
+ gsub("[ \t\n]+$","");
+
+ # comments are removed
+ # XXX todo: check for quoted comments??
+ if (match($0,/[^#]*/)) {
+ rest=substr($0,RSTART,RLENGTH)
+ } else {
+ rest=$0
+ }
+
+ # match the config section "<section> {"
+ if (match(rest,/^[^ \t\n{]+[ \t\n]*\{/)) {
+ match(rest,/^[^ \t\n{]+/)
+ section = substr(rest,RSTART,RLENGTH)
+ rest=substr($0,RSTART+RLENGTH);
+ match(rest,/[ \t\n]*\{/)
+ rest=substr(rest,RSTART+RLENGTH)
+ # check for array indication
+ if (match(section,/\[[ \t\n]*\]/)) {
+ section=substr(section,1,RSTART-1)
+ multiple[section] = 1
+ } else {
+ multiple[section] = 0
+ }
+ }
+
+ reset_option()
+
+ # parse the remaing line as long as there is something to parse
+ while (rest ~ "[^ \t\n}]+") {
+ found = 0
+
+ # get option name and option type
+ # first, check for "simple" datatype definitions
+ if (match(rest,"[^: \t\n]+[ \t\n]*:[ \t\n]*(" \
+ simple_types ")")){
+ match(rest,"[^: \t\n]+")
+ var=substr(rest,RSTART,RLENGTH)
+ rest=substr(rest,RSTART+RLENGTH)
+ match(rest,"[ \t\n]*:[ \t\n]*")
+ rest=substr(rest,RSTART+RLENGTH)
+ match(rest,"(" simple_types ")")
+ type=substr(rest,RSTART,RLENGTH)
+ rest = substr(rest,RSTART+RLENGTH)
+ found = 1
+ # next, check for enum definitions
+ } else if (match(rest,/[^: \t\n]+[ \t\n]*:[ \t\n]*enum\([^\)]+\)/ )) {
+ match(rest,"[^: \t\n]+")
+ var=substr(rest,RSTART,RLENGTH)
+ rest=substr(rest,RSTART+RLENGTH)
+ match(rest,/[ \t\n]*:[ \t\n]*enum\(/)
+ rest=substr(rest,RSTART+RLENGTH)
+ match(rest,/[^\)]+/)
+ type="enum," substr(rest,RSTART,RLENGTH)
+ rest = substr(rest,RSTART+RLENGTH+1)
+ found=1
+ }
+
+ # after the name and the type,
+ # get the option requirements/scope
+ if (match(rest,/[^,]*,[ \t\n]*required\[[^]]+\]/)) {
+ match(rest,"[^,]*")
+ save=substr(rest,RSTART,RLENGTH)
+ rest=substr(rest,RSTART+RLENGTH)
+ match(rest,/,[ \t\n]*required\[/);
+ rest=substr(rest,RSTART+RLENGTH)
+ match(rest,/[^]]+\]/)
+ required=substr(rest,RSTART,RLENGTH-1)
+ save=save substr(rest,RSTART+RLENGTH)
+ rest=save
+ found=1
+ } else if (match(rest,/[^,]*,[ \t\n]*required/)) {
+ match(rest,"[^,]*")
+ save=substr(rest,RSTART,RLENGTH)
+ rest=substr(rest,RSTART+RLENGTH)
+ match(rest,",[ \t\n]*required");
+ rest=substr(rest,RSTART+RLENGTH)
+ required=1
+ save=save substr(rest,RSTART+RLENGTH)
+ rest=save
+ found=1
+ }
+ if (match(rest,/[^,]*,[ \t\n]*optional\[[^]]+\]/)) {
+ match(rest,"[^,]*")
+ save=substr(rest,RSTART,RLENGTH)
+ rest=substr(rest,RSTART+RLENGTH)
+ match(rest,/,[ \t\n]*optional\[/);
+ rest=substr(rest,RSTART+RLENGTH)
+ match(rest,/[^]]+\]/)
+ optional=substr(rest,RSTART,RLENGTH-1)
+ save=save substr(rest,RSTART+RLENGTH)
+ rest=save
+ found=1
+ }
+
+ # if the remaining line contains a semicolon, complete the
+ # specification of the config options
+ if (match(rest, "^[ \t\n]*;(.*)")) {
+ match(rest,"^[ \t\n]*;")
+ rest=substr(rest,RSTART+RLENGTH)
+ if (found==1) {
+ store_option()
+ }
+ reset_option()
+
+ # if nothing matched on this line, clear the rest
+ } else if (!found) {
+ rest = ""
+ }
+ }
+
+ # after the line is pared, store the configuration option in the
+ # table if any has been defined
+ if (length(var)) {
+ store_option()
+ reset_option()
+ }
+ # close the section if the line contained a closing section bracket,
+ # XXX todo: check if this has to be done more intelligent
+ if ($0 ~ /\}/) {
+ section=""
+ }
+}
--- /dev/null
+interface[] {
+ proto: string, required;
+ ipaddr: ip, required[proto=static];
+ netmask: ip, required[proto=static];
+ gateway: ip;
+ dns: ip;
+}
#!/bin/sh
# Shell script defining macros for manipulating config files
#
-# Copyright (C) 2006 by Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
-# Copyright (C) 2006 by Felix Fietkau <nbd@openwrt.org>
+# Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
+# Copyright (C) 2006,2007 Felix Fietkau <nbd@openwrt.org>
#
# 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
uci_do_update() {
local FILENAME="$1"
local UPDATE="$2"
- awk -f /lib/config/uci-update.awk -f - <<EOF
+ awk -f $UCI_ROOT/lib/config/uci-update.awk -f - <<EOF
BEGIN {
config = read_file("$FILENAME")
$UPDATE
uci_commit() {
local PACKAGE="$1"
local PACKAGE_BASE="$(basename "$PACKAGE")"
-
+
mkdir -p /tmp/.uci
- lock "/tmp/.uci/$PACKAGE_BASE.lock"
+ LOCK=`which lock` || LOCK=:
+ $LOCK "/tmp/.uci/$PACKAGE_BASE.lock"
[ -f "/tmp/.uci/$PACKAGE_BASE" ] && (
updatestr=""
}
config_load "$PACKAGE"
- CONFIG_FILENAME="${CONFIG_FILENAME:-$ROOT/etc/config/$PACKAGE_BASE}"
+ CONFIG_FILENAME="${CONFIG_FILENAME:-$UCI_ROOT/etc/config/$PACKAGE_BASE}"
uci_do_update "$CONFIG_FILENAME" "$updatestr" > "/tmp/.uci/$PACKAGE_BASE.new" && {
mv -f "/tmp/.uci/$PACKAGE_BASE.new" "$CONFIG_FILENAME" && \
rm -f "/tmp/.uci/$PACKAGE_BASE"
}
)
- lock -u "/tmp/.uci/$PACKAGE_BASE.lock"
+ $LOCK -u "/tmp/.uci/$PACKAGE_BASE.lock"
}
--- /dev/null
+# Shell script defining validating configuration macros
+#
+# Copyright (C) 2006 by Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
+# Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org>
+#
+# 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+
+validate_spec() {
+ export | grep 'CONFIG_' | cat - "$@" | awk \
+ -f $UCI_ROOT/lib/config/validate_config.awk \
+ -f $UCI_ROOT/lib/config/parse_spec.awk \
+ -f $UCI_ROOT/lib/config/validate_spec.awk
+}
+
+validate_config_cb () {
+ local TYPE
+ local res=
+
+ [ -n "${CONFIG_SECTION}" ] || return 0
+
+ config_get TYPE ${CONFIG_SECTION} TYPE
+ [ -n "$TYPE" ] || return 0
+
+ if type validate_${PACKAGE}_${TYPE} >/dev/null 2>&1; then
+ validate_${PACKAGE}_${TYPE}
+ res="$?"
+ else
+ if [ -f $UCI_ROOT/lib/config/specs/${PACKAGE}.spec ]; then
+ # no special defined, use default one
+ validate_spec $UCI_ROOT/lib/config/specs/${PACKAGE}.spec
+ res="$?"
+ fi
+ fi
+
+ VALIDATE_RES="${VALIDATE_RES:-$res}"
+}
+
+uci_validate() {(
+ PACKAGE="$1"
+ FILE="$2"
+ VALIDATE_RES=
+
+ [ -z "${PACKAGE}" ] && {
+ echo "Error: no package defined"
+ return 1
+ }
+
+ reset_cb
+ config_cb() {
+ validate_config_cb "$@"
+ }
+ unset NO_EXPORT
+ if [ -n "$FILE" ]; then
+ . "$FILE"
+ config
+ else
+ config_load "$1"
+ fi
+
+ return ${VALIDATE_RES:-0}
+)}
--- /dev/null
+# AWK file for validating uci specification files
+#
+# Copyright (C) 2006 by Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+function is_int(value) {
+ valid = 1
+ if (value !~ /^[0-9]*$/) { valid = 0 }
+ return valid
+}
+
+function is_netmask(value) {
+ return is_ip(value)
+}
+
+function is_ip(value) {
+ valid = 1
+ if ((value != "") && (value !~ /^[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*$/)) valid = 0
+ else {
+ split(value, ipaddr, "\\.")
+ for (i = 1; i <= 4; i++) {
+ if ((ipaddr[i] < 0) || (ipaddr[i] > 255)) valid = 0
+ }
+ }
+ return valid
+}
+
+function is_wep(value) {
+ valid = 1
+ if (value !~ /^[0-9A-Fa-f]*$/) {
+ valid = 0
+ } else if ((length(value) != 0) && (length(value) != 10) && (length(value) != 26)) {
+ valid = 0
+ } else if (value ~ /0$/) {
+ valid = 0
+ }
+ return valid
+}
+
+function is_hostname(value) {
+ valid = 1
+ if (value !~ /^[0-9a-zA-z\.\-]*$/) {
+ valid = 0
+ }
+ return valid;
+}
+
+function is_string(value) {
+ return 1;
+}
+
+function is_mac(value) {
+ valid = 1
+ if ((value != "") && (value !~ /^[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]$/)) {
+ valid = 0
+ }
+ return valid
+}
+
+function is_port(value) {
+ valid = 1
+ if (value !~ /^[0-9]*$/) {
+ valid = 0
+ }
+ return valid
+}
+
+function is_ports(value) {
+ valid = 1
+ n = split(value ",", ports, ",")
+ for (i = 1; i <= n; i++) {
+ if ((ports[i] !~ /^[0-9]*$/) && (ports[i] !~ /^[0-9][0-9]*-[0-9][0-9]*$/)) {
+ valid = 0
+ }
+ }
+ return valid
+}
+
+function is_wpapsk(value) {
+ valid = 1
+ if (length(value) > 64) {
+ valid = 0
+ }
+ if ((length(value) != 0) && (length(value) < 8)) {
+ valid = 0
+ }
+ if ((length(value) == 64) && (value ~ /[^0-9a-fA-F]/)) {
+ valid = 0
+ }
+ return valid
+}
+
--- /dev/null
+# AWK file for validating uci specification files
+#
+# Copyright (C) 2006 by Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
+# Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org>
+#
+# 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+#
+# general: unfortunately, the development was done using gawk providing
+# a different match() functions than e.g. mawk on debian systems
+# - therefore, the script was changed to run on most awk's
+# - even things like [:space:] are not used
+#
+# - script parses the config section definition contained in one
+# specification file
+# global variables:
+# * section - contains the current config section name
+# * var - contains the name of the current config option
+# * type - contains the type of the current config option
+# * required - contains the requirements of the current config option
+# * optional - contains the optional scope of the current config option
+# * vars[] - array, contains the name of all config options valid within
+# a certain config section, format: csv
+#
+# XXX todo: more than one config option with the same in different section
+# will clash for the following tables
+# * types[] - contains the type of a config option
+# * reqs[] - contains the requirements of a config option
+# * opts[] - contains the optional scope of a config option
+#
+
+# - check requirement validates, if the config option is required in
+# the config section type and if so, if it is defined
+# - the functions exits with error in case of non-conforming
+# behaviour
+# XXX todo: use return instead of exit
+#
+function check_requirements(vsec,var) {
+ # check, if config option is required in all cases
+ if (reqs[vsec "_" var] == 1) {
+ # option is always required, is it defined?
+ if (!length(ENVIRON["CONFIG_" vsec "_" var])) {
+ print STDERR "Error: missing config option " var " in " vsec
+ exit 1
+ }
+
+ # check, if config option is required only when other options
+ # have certain values
+ } else if (length(reqs[vsec "_" var])) {
+ # - check all requirements, e.g. proto=static,proto=pptp
+ # - note, that the required flag is tiggered if at least one
+ # of the conditions is met
+ split(reqs[vsec "_" var],arr,",");
+ for (idx in arr) {
+ # parse the condition space tolerant
+ if (!match(arr[idx],"^[ \t\n]*[^ \t\n=]+"\
+ "[ \t\n]*=.+")) {
+ print STDERR "Error: invalid requirement "\
+ "in spec file for " var " : " arr[idx]
+ exit 1
+ }
+ # get the name of the variable
+ match(arr[idx],"[^ \t\n=]+");
+ name=substr(arr[idx],RSTART,RLENGTH)
+ mrest=substr(arr[idx],RSTART+RLENGTH)
+ # get the spaces
+ match(mrest,"[ \t\n]*=[ \t\n]*")
+ val=substr(mrest,RSTART+RLENGTH)
+ # check the condition
+ if (ENVIRON["CONFIG_" vsec "_" name] == val) {
+ # condition is met, check requirement
+ if (!length(ENVIRON["CONFIG_" vsec "_" var])) {
+ print STDERR "Error: missing config " \
+ "option " var " in " vsec
+ exit 1
+ }
+ }
+ }
+ }
+}
+
+# is_valid just returns true(1)/false(0) if the
+# given value is conform with the type definition
+# NOTE: this function needs the type validating function from
+# validate_config.awk
+#
+function is_valid(type,value) {
+
+ # the enum type contains a definition of all allowed values as csv
+ # e.g. enum,alpha,beta,gamma
+ if (type ~ "enum" ) {
+ split(type,tarr,",")
+ for (num in tarr) {
+ if (num > 0) {
+ gsub("^[ \t\n]*","",tarr[num]);
+ gsub("[ \t\n]*$","",tarr[num]);
+ if (tarr[num] == value) {
+ return 1
+ }
+ }
+ }
+ return 0;
+ }
+
+ # all other types are checked as defined in the former validate.awk
+ if (type ~ "int") return is_int(value)
+ if (type ~ "ip" ) return is_ip(value)
+ if (type ~ "netmask" ) return is_netmask(value)
+ if (type ~ "string" ) return is_string(value)
+ if (type ~ "wep" ) return is_wep(value)
+ if (type ~ "hostname" ) return is_hostname(value)
+ if (type ~ "mac" ) return is_mac(value)
+ if (type ~ "port" ) return is_port(value)
+ if (type ~ "ports" ) return is_ports(value)
+ if (type ~ "wpapsk" ) return is_wpapsk(value)
+}
+
+# validate_config compares the specification as parsed from the spec file
+# with the environment variables
+# CONFIG_SECTION contains the relevant config section name, e.g. wan
+# CONFIG_<section>_TYPE contains the type of the config, e.g. interface
+# CONFIG_<section>_<var> contains the value of the config option <var>
+#
+function validate_config() {
+ # get the config section name
+ vname=ENVIRON["CONFIG_SECTION"]
+ if (!length(vname)) {
+ print STDERR "Error: no current configuration"
+ exit 1
+ }
+ # get the config section type
+ vsec=ENVIRON["CONFIG_" vname "_TYPE"]
+ if (!length(vsec)) {
+ print STDERR "Error: section " vsec " not found"
+ exit 1
+ }
+
+ # loop through all config options specified for this section type
+ split(vars[vsec],options,",")
+ for (oidx in options) {
+ # first, look for all required attributes
+ var=options[oidx]
+ check_requirements(vname,var)
+
+ # next look at each option and validate it
+ val=ENVIRON["CONFIG_" vname "_" var]
+ if (length(val)) {
+ if (!is_valid(types[vsec "_" var],val)) {
+ print "Error: type validation error for '" var "' in section '" vname "'"
+ exit 1
+ }
+ }
+ }
+}
+
+
+END {
+ validate_config()
+}
projects / openwrt.git / commitdiff