b636d99d91
For now, printing of Sun RPC requests is disabled because we do not yet have the RPC header files. This should affect basically noone, as we do not have any RPC-based programs yet, for the same reason. Change-Id: Ie7818faaaacdc104d8b2c37a68866b4ce18247d6
248 lines
6.4 KiB
Bash
248 lines
6.4 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 1990, 1996
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# John Robert LoVerso. All rights reserved.
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# SMIv2 parsing copyright (c) 1999
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# William C. Fenner.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notices, this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notices, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# This script will read either ASN.1-style MIB files or the ".defs" files
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# created by the ISODE "mosy" program on such files.
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#
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# The output of this script is the "mib.h" file used by tcpdumps' ASN.1/SNMP
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# decoding code.
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#
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# This script needs to be run by "gawk" (GNU awk). "nawk" will work, but
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# dump will get a recursion error if you process LARGE mibs. While it would
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# by farily easy to rewrite this not to use recursion (and also easy to
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# eliminate use of gsub and functions to use classic "awk"), you have to
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# order the structure declarations in defined-first order for the compiler
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# not to barf; too bad tsort doesn't take arguments.
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#
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cat << EOF
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/*
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* This file was generated by tcpdump/makemib on `date`
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* You probably don't want to edit this by hand!
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*
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* struct mib somename = { desc, oid-octet, type, child-pointer, next-pointer
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};
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*/
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EOF
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awk '
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BEGIN {
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debug=0;
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# for sanity, we prep the namespace with objects from RFC-1155
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# (we manually establish the root)
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oid["iso"]=1
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oidadd("org", "iso", 3)
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oidadd("dod", "org", 6)
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oidadd("internet", "dod", 1)
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oidadd("directory", "internet", 1)
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oidadd("mgmt", "internet", 2)
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#XXX oidadd("mib", "mgmt", 1)
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oidadd("mib-2", "mgmt", 1)
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oidadd("experimental", "internet", 3)
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oidadd("private", "internet", 4)
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oidadd("enterprises", "private", 1)
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oidadd("ip", "mib-2", 4)
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oidadd("transmission", "mib-2", 10)
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holddesc="none"
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}
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#
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# Read mosy "*.defs" file. mosy does all the parsing work; we just read
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# its simple and straightforward output. It would not be too hard to make
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# tcpdump directly read mosy output, but...
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#
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# Ignore these unless the current file is called something.defs; false
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# positives are too common in DESCRIPTIONs.
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NF > 1 && index($2,".")>0 && FILENAME ~ /\.defs/ {
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# currently ignore items of the form "{ iso.3.6.1 }"
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if (split($2, p, ".") == 2) {
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oidadd($1, p[1], p[2])
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}
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next
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}
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#
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# Must be a MIB file
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# Make it easier to parse - used to be done by sed
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{ sub(/--\*.*\*--/, ""); sub(/--.*/, ""); gsub(/[{}]/, " & "); }
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#
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# this next section is simple and naive, but does the job ok
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#
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# foo OBJECT IDENTIFIER ::= { baz 17 }
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# or
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# foo OBJECT IDENTIFIER ::=
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# { baz 17 }
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$2$3$4 == "OBJECTIDENTIFIER::=" {
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holddesc="none"
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if (NF == 8)
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oidadd($1, $6, $7)
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if (NF == 4)
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holddesc=$1
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next
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}
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$1 == "{" && holddesc != "none" && NF == 4 {
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oidadd(holddesc, $2, $3)
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holddesc="none"
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}
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#
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# foo OBJECT IDENTIFIER
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# ::= { bar 1 }
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$2$3 == "OBJECTIDENTIFIER" && $1 != "SYNTAX" && NF == 3 {
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holddesc=$1
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}
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#
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# foo
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# OBJECT IDENTIFIER ::= { bar 1 }
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# a couple of heuristics to exclude single words in e.g. long
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# DESCRIPTION clauses
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NF == 1 && $1 ~ "[a-z][a-z]*[A-Z]" && $1 !~ /[(){}.,]/ && holddesc == "none" {
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holddesc=$1
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}
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$1$2$3 == "OBJECTIDENTIFIER::=" && holddesc != "none" {
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oidadd(holddesc, $5, $6)
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holddesc="none"
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}
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#
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# "normal" style
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# foo OBJECT-TYPE ...
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# ...
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# ::= { baz 5 }
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$2 == "MODULE-IDENTITY" || $2 == "MODULE-COMPLIANCE" ||
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$2 == "OBJECT-IDENTITY" || $2 == "OBJECT-TYPE" ||
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$2 == "OBJECT-GROUP" ||
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$2 == "NOTIFICATION-TYPE" || $2 == "NOTIFICATION-GROUP" {
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holddesc=$1
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}
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$1 == "::=" && holddesc != "none" && NF == 5 {
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oidadd(holddesc, $3, $4)
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holddesc="none"
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}
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#
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# foo ::= { baz 17 }
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$2$3 == "::={" {
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oidadd($1,$4,$5)
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holddesc="none"
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}
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#
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# End of the road - output the data.
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#
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END {
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print "struct obj"
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dump("iso")
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print "*mibroot = &_iso_obj;"
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}
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function inn(file) {
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if (file == "" || file == "-")
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return ""
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return " in " file
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}
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#
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# add a new object to the tree
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#
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# new OBJECT IDENTIFIER ::= { parent value }
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#
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function oidadd(new, parent, value) {
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# Ignore 0.0
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if (parent == "0" && value == 0)
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return
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if (debug)
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print "/* oidadd" inn(FILENAME) ":", new, "in", parent, "as", value, "line", $0, "*/"
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# use safe C identifiers
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gsub(/[-&\/]/,"",new)
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gsub(/[-&\/]/,"",parent)
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# check if parent missing
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if (oid[parent] == "") {
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printf "/* parse problem%s: no parent for %s.%s(%d) */\n", \
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inn(FILENAME), parent, new, value
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return
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}
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# check if parent.value already exists
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if (oid[new] > 0 && oid[new] != value) {
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printf "/* parse problem%s: dup %s.%s(%d) != old (%d) */\n", \
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inn(FILENAME), parent, new, value, oid[new]
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return
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}
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# check for new name for parent.value
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if (child[parent] != "") {
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for (sib = child[parent]; sib != ""; sib = sibling[sib])
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if (oid[sib] == value) {
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if (new != sib)
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printf "/* parse problem%s: new name" \
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" \"%s\"" \
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" for %s.%s(%d) ignored */\n", \
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inn(FILENAME), new, parent, \
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sib, value
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return
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}
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}
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oid[new]=value
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if (child[parent] == "") {
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child[parent] = new
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} else {
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sibling[new] = child[parent]
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child[parent] = new
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}
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}
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#
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# old(?) routine to recurse down the tree (in postfix order for convenience)
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#
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function dump(item, c, s) {
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# newitem=sofar"."item"("oid[item]")"
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# printf "/* %s c=%s s=%s */\n", newitem, child[item], sibling[item]
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c="NULL"
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if (child[item] != "") {
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dump(child[item])
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c = "&_"child[item]"_obj"
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}
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s="NULL"
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if (sibling[item] != "") {
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dump(sibling[item])
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s = "&_"sibling[item]"_obj"
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}
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printf "_%s_obj = {\n\t\"%s\", %d, 0,\n\t%s, %s\n},\n", \
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item, item, oid[item], c, s
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}
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' $@
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exit 0
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