Integrate basic UCI config file validation support Needs more testing and validation is not enforced yet
Code contributed by Fraunhofer Fokus SVN-Revision: 6391master
Felix Fietkau
18 years ago
parent
c6a4f047e3
commit
9405a2a6be
@ -0,0 +1,255 @@ |
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# AWK file for parsing uci specification files |
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# |
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# Copyright (C) 2006 by Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de> |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# |
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# general: unfortunately, the development was done using gawk providing |
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# a different match() functions than e.g. mawk on debian systems |
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# - therefore, the script was changed to run on most awk's |
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# - even things like [:space:] are not used |
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# |
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# - script parses the config section definition contained in one |
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# specification file |
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# global variables: |
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# * section - contains the current config section name |
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# * var - contains the name of the current config option |
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# * type - contains the type of the current config option |
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# * required - contains the requirements of the current config option |
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# * optional - contains the optional scope of the current config option |
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# * vars[] - array, contains the name of all config options valid within |
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# a certain config section, format: csv |
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# |
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# XXX todo: more than one config option with the same in different section |
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# will clash for the following tables |
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# * types[] - contains the type of a config option |
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# * reqs[] - contains the requirements of a config option |
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# * opts[] - contains the optional scope of a config option |
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# |
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BEGIN { |
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section_count=1 |
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section = "" |
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simple_types = "int|ip|netmask|string|wep|hostname|mac|port|ports|wpapsk" |
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} |
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|
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# function print_specification |
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# - prints all information about the created tables containing the |
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# specification |
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function print_specification() { |
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for (section in vars) { |
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printf("%s\n",section); |
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split(vars[section],arr,",") |
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for (idx in arr) { |
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printf("\t%s[%s]",arr[idx],types[section "_" arr[idx]]); |
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if (length(reqs[section "_" arr[idx]])) { |
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if (reqs[section "_" arr[idx]]==1) { |
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printf(",req"); |
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}else{ |
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printf(", req(%s)", reqs[section "_" arr[idx]]); |
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} |
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} |
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if (length(opts[section "_" arr[idx]])) { |
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printf(", opt(%s)", opts[section "_" arr[idx]]); |
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} |
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printf("\n"); |
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} |
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} |
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} |
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|
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|
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function reset_option() { |
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# just set global variables parsed on one line back to defaults |
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var = "" |
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type = "" |
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required = "" |
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optional = "" |
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found = 0 |
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} |
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|
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function store_option() { |
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# save all information about a config option parsed from the spec file |
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# to the relevant tables for future use |
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|
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# first check minimum requirements for storing information |
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if (!length(section)) { |
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print STDERR "line " NR ": section definition missing" |
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exit 1 |
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} |
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if (!length(var)) { |
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print STDERR "line " NR ": invalid config option name" |
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exit 1 |
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} |
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if (!length(type)) { |
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print STDERR "line " NR ": invalid config option type" |
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exit 1 |
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} |
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|
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# add config options to the names of options available for this |
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# section |
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if (exists[section]!=1) { |
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section_names[section_count] = section |
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section_count++ |
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exists[section] = 1 |
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vars[section] = var |
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} else { |
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vars[section] = vars[section] "," var |
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} |
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|
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# save the type, the requirements and the optional scope of the |
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# config option |
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types[section "_" var] = type |
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reqs[section "_" var] = required |
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opts[section "_" var] = optional |
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} |
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|
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/^declare -x|^export/ { |
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sub(/^declare -x /,"") |
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sub(/^export /,"") |
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split($0,arr,"=") |
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val=substr(arr[2],2,length(arr[2])-2) |
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ENVIRON[arr[1]] = val |
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next |
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} |
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|
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# main parsing function |
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# this is done in one function block to allow multiple semicolon separated |
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# definitions on one line |
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{ |
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# replace leading/trailing white space |
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gsub("^[ \t\n]+",""); |
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gsub("[ \t\n]+$",""); |
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|
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# comments are removed |
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# XXX todo: check for quoted comments?? |
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if (match($0,/[^#]*/)) { |
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rest=substr($0,RSTART,RLENGTH) |
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} else { |
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rest=$0 |
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} |
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|
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# match the config section "<section> {" |
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if (match(rest,/^[^ \t\n{]+[ \t\n]*\{/)) { |
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match(rest,/^[^ \t\n{]+/) |
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section = substr(rest,RSTART,RLENGTH) |
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rest=substr($0,RSTART+RLENGTH); |
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match(rest,/[ \t\n]*\{/) |
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rest=substr(rest,RSTART+RLENGTH) |
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# check for array indication |
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if (match(section,/\[[ \t\n]*\]/)) { |
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section=substr(section,1,RSTART-1) |
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multiple[section] = 1 |
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} else { |
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multiple[section] = 0 |
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} |
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} |
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|
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reset_option() |
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|
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# parse the remaing line as long as there is something to parse |
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while (rest ~ "[^ \t\n}]+") { |
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found = 0 |
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|
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# get option name and option type |
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# first, check for "simple" datatype definitions |
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if (match(rest,"[^: \t\n]+[ \t\n]*:[ \t\n]*(" \ |
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simple_types ")")){ |
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match(rest,"[^: \t\n]+") |
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var=substr(rest,RSTART,RLENGTH) |
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rest=substr(rest,RSTART+RLENGTH) |
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match(rest,"[ \t\n]*:[ \t\n]*") |
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rest=substr(rest,RSTART+RLENGTH) |
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match(rest,"(" simple_types ")") |
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type=substr(rest,RSTART,RLENGTH) |
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rest = substr(rest,RSTART+RLENGTH) |
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found = 1 |
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# next, check for enum definitions |
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} else if (match(rest,/[^: \t\n]+[ \t\n]*:[ \t\n]*enum\([^\)]+\)/ )) { |
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match(rest,"[^: \t\n]+") |
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var=substr(rest,RSTART,RLENGTH) |
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rest=substr(rest,RSTART+RLENGTH) |
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match(rest,/[ \t\n]*:[ \t\n]*enum\(/) |
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rest=substr(rest,RSTART+RLENGTH) |
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match(rest,/[^\)]+/) |
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type="enum," substr(rest,RSTART,RLENGTH) |
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rest = substr(rest,RSTART+RLENGTH+1) |
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found=1 |
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} |
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|
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# after the name and the type, |
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# get the option requirements/scope |
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if (match(rest,/[^,]*,[ \t\n]*required\[[^]]+\]/)) { |
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match(rest,"[^,]*") |
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save=substr(rest,RSTART,RLENGTH) |
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rest=substr(rest,RSTART+RLENGTH) |
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match(rest,/,[ \t\n]*required\[/); |
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rest=substr(rest,RSTART+RLENGTH) |
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match(rest,/[^]]+\]/) |
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required=substr(rest,RSTART,RLENGTH-1) |
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save=save substr(rest,RSTART+RLENGTH) |
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rest=save |
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found=1 |
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} else if (match(rest,/[^,]*,[ \t\n]*required/)) { |
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match(rest,"[^,]*") |
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save=substr(rest,RSTART,RLENGTH) |
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rest=substr(rest,RSTART+RLENGTH) |
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match(rest,",[ \t\n]*required"); |
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rest=substr(rest,RSTART+RLENGTH) |
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required=1 |
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save=save substr(rest,RSTART+RLENGTH) |
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rest=save |
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found=1 |
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} |
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if (match(rest,/[^,]*,[ \t\n]*optional\[[^]]+\]/)) { |
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match(rest,"[^,]*") |
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save=substr(rest,RSTART,RLENGTH) |
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rest=substr(rest,RSTART+RLENGTH) |
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match(rest,/,[ \t\n]*optional\[/); |
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rest=substr(rest,RSTART+RLENGTH) |
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match(rest,/[^]]+\]/) |
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optional=substr(rest,RSTART,RLENGTH-1) |
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save=save substr(rest,RSTART+RLENGTH) |
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rest=save |
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found=1 |
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} |
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|
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# if the remaining line contains a semicolon, complete the |
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# specification of the config options |
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if (match(rest, "^[ \t\n]*;(.*)")) { |
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match(rest,"^[ \t\n]*;") |
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rest=substr(rest,RSTART+RLENGTH) |
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if (found==1) { |
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store_option() |
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} |
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reset_option() |
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|
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# if nothing matched on this line, clear the rest |
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} else if (!found) { |
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rest = "" |
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} |
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} |
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|
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# after the line is pared, store the configuration option in the |
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# table if any has been defined |
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if (length(var)) { |
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store_option() |
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reset_option() |
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} |
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# close the section if the line contained a closing section bracket, |
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# XXX todo: check if this has to be done more intelligent |
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if ($0 ~ /\}/) { |
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section="" |
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} |
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} |
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@ -0,0 +1,7 @@ |
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interface[] { |
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proto: string, required; |
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ipaddr: ip, required[proto=static]; |
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netmask: ip, required[proto=static]; |
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gateway: ip; |
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dns: ip; |
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} |
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@ -0,0 +1,74 @@ |
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# Shell script defining validating configuration macros |
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# |
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# Copyright (C) 2006 by Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de> |
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# Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org> |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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|
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validate_spec() { |
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export | grep 'CONFIG_' | cat - "$@" | awk \ |
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-f $UCI_ROOT/lib/config/validate_config.awk \ |
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-f $UCI_ROOT/lib/config/parse_spec.awk \ |
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-f $UCI_ROOT/lib/config/validate_spec.awk |
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} |
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|
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validate_config_cb () { |
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local TYPE |
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local res= |
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|
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[ -n "${CONFIG_SECTION}" ] || return 0 |
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|
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config_get TYPE ${CONFIG_SECTION} TYPE |
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[ -n "$TYPE" ] || return 0 |
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|
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if type validate_${PACKAGE}_${TYPE} >/dev/null 2>&1; then |
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validate_${PACKAGE}_${TYPE} |
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res="$?" |
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else |
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if [ -f $UCI_ROOT/lib/config/specs/${PACKAGE}.spec ]; then |
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# no special defined, use default one |
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validate_spec $UCI_ROOT/lib/config/specs/${PACKAGE}.spec |
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res="$?" |
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fi |
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fi |
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VALIDATE_RES="${VALIDATE_RES:-$res}" |
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} |
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|
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uci_validate() {( |
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PACKAGE="$1" |
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FILE="$2" |
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VALIDATE_RES= |
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|
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[ -z "${PACKAGE}" ] && { |
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echo "Error: no package defined" |
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return 1 |
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} |
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|
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reset_cb |
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config_cb() { |
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validate_config_cb "$@" |
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} |
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unset NO_EXPORT |
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if [ -n "$FILE" ]; then |
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. "$FILE" |
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config |
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else |
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config_load "$1" |
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fi |
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|
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return ${VALIDATE_RES:-0} |
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)} |
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@ -0,0 +1,105 @@ |
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# AWK file for validating uci specification files |
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# |
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# Copyright (C) 2006 by Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de> |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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function is_int(value) { |
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valid = 1 |
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if (value !~ /^[0-9]*$/) { valid = 0 } |
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return valid |
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} |
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|
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function is_netmask(value) { |
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return is_ip(value) |
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} |
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|
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function is_ip(value) { |
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valid = 1 |
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if ((value != "") && (value !~ /^[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*$/)) valid = 0 |
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else { |
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split(value, ipaddr, "\\.") |
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for (i = 1; i <= 4; i++) { |
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if ((ipaddr[i] < 0) || (ipaddr[i] > 255)) valid = 0 |
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} |
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} |
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return valid |
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} |
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|
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function is_wep(value) { |
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valid = 1 |
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if (value !~ /^[0-9A-Fa-f]*$/) { |
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valid = 0 |
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} else if ((length(value) != 0) && (length(value) != 10) && (length(value) != 26)) { |
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valid = 0 |
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} else if (value ~ /0$/) { |
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valid = 0 |
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} |
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return valid |
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} |
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|
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function is_hostname(value) { |
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valid = 1 |
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if (value !~ /^[0-9a-zA-z\.\-]*$/) { |
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valid = 0 |
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} |
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return valid; |
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} |
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|
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function is_string(value) { |
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return 1; |
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} |
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|
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function is_mac(value) { |
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valid = 1 |
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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]$/)) { |
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valid = 0 |
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} |
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return valid |
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} |
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|
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function is_port(value) { |
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valid = 1 |
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if (value !~ /^[0-9]*$/) { |
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valid = 0 |
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} |
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return valid |
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} |
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|
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function is_ports(value) { |
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valid = 1 |
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n = split(value ",", ports, ",") |
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for (i = 1; i <= n; i++) { |
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if ((ports[i] !~ /^[0-9]*$/) && (ports[i] !~ /^[0-9][0-9]*-[0-9][0-9]*$/)) { |
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valid = 0 |
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} |
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} |
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return valid |
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} |
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|
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function is_wpapsk(value) { |
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valid = 1 |
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if (length(value) > 64) { |
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valid = 0 |
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} |
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if ((length(value) != 0) && (length(value) < 8)) { |
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valid = 0 |
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} |
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if ((length(value) == 64) && (value ~ /[^0-9a-fA-F]/)) { |
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valid = 0 |
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} |
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return valid |
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} |
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|
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@ -0,0 +1,171 @@ |
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# AWK file for validating uci specification files |
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# |
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# Copyright (C) 2006 by Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de> |
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# Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org> |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# General Public License for more details. |
||||
# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# |
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# general: unfortunately, the development was done using gawk providing |
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# a different match() functions than e.g. mawk on debian systems |
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# - therefore, the script was changed to run on most awk's |
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# - even things like [:space:] are not used |
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# |
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# - script parses the config section definition contained in one |
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# specification file |
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# global variables: |
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# * section - contains the current config section name |
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# * var - contains the name of the current config option |
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# * type - contains the type of the current config option |
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# * required - contains the requirements of the current config option |
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# * optional - contains the optional scope of the current config option |
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# * vars[] - array, contains the name of all config options valid within |
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# a certain config section, format: csv |
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# |
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# XXX todo: more than one config option with the same in different section |
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# will clash for the following tables |
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# * types[] - contains the type of a config option |
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# * reqs[] - contains the requirements of a config option |
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# * opts[] - contains the optional scope of a config option |
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# |
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|
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# - check requirement validates, if the config option is required in |
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# the config section type and if so, if it is defined |
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# - the functions exits with error in case of non-conforming |
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# behaviour |
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# XXX todo: use return instead of exit |
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# |
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function check_requirements(vsec,var) { |
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# check, if config option is required in all cases |
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if (reqs[vsec "_" var] == 1) { |
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# option is always required, is it defined? |
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if (!length(ENVIRON["CONFIG_" vsec "_" var])) { |
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print STDERR "Error: missing config option " var " in " vsec |
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exit 1 |
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} |
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|
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# check, if config option is required only when other options |
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# have certain values |
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} else if (length(reqs[vsec "_" var])) { |
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# - check all requirements, e.g. proto=static,proto=pptp |
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# - note, that the required flag is tiggered if at least one |
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# of the conditions is met |
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split(reqs[vsec "_" var],arr,","); |
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for (idx in arr) { |
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# parse the condition space tolerant |
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if (!match(arr[idx],"^[ \t\n]*[^ \t\n=]+"\ |
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"[ \t\n]*=.+")) { |
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print STDERR "Error: invalid requirement "\ |
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"in spec file for " var " : " arr[idx] |
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exit 1 |
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} |
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# get the name of the variable |
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match(arr[idx],"[^ \t\n=]+"); |
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name=substr(arr[idx],RSTART,RLENGTH) |
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mrest=substr(arr[idx],RSTART+RLENGTH) |
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# get the spaces |
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match(mrest,"[ \t\n]*=[ \t\n]*") |
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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() |
||||
} |
||||
Loading…
Reference in new issue