275 lines
8.1 KiB
Awk
275 lines
8.1 KiB
Awk
#
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# Copyright (c) 2001-2003
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# Fraunhofer Institute for Open Communication Systems (FhG Fokus).
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# Author: Hartmut Brandt <harti@freebsd.org>
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#
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# $Begemot: libunimsg/netnatm/msg/genmsgc.awk,v 1.6 2004/07/08 08:22:04 brandt Exp $
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#
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# Generate message functions.
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#
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function begin() {
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}
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function first_entry() {
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print "/* This file was created automatically"
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print " * Source file: " id
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print " */"
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print ""
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print "#include <sys/types.h>"
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print "#include <sys/param.h>"
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print ""
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print "#ifdef _KERNEL"
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print "#include <sys/libkern.h>"
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print "#else"
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print "#include <string.h>"
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print "#endif"
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print "#include <netnatm/unimsg.h>"
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print "#include <netnatm/msg/unistruct.h>"
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print "#include <netnatm/msg/unimsglib.h>"
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print "#include <netnatm/msg/priv.h>"
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print "#include <netnatm/msg/privmsg.c>"
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}
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function end() {
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print ""
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print "const struct msgdecl *uni_msgtable[256] = {"
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for(i = 0; i < 256; i++) {
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if(decl[i] == "") {
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printf "\t&decl_unknown,"
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} else {
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printf "\t&%s,", decl[i]
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}
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printf "\t/* 0x%02x */\n", i
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}
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print "};"
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}
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function start_message() {
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}
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function end_message() {
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gen_print()
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gen_check()
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gen_encode()
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gen_decode()
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gen_reg()
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}
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function gen_print() {
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print ""
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print "static void"
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print "print_" msg "(struct uni_" msg " *msg, struct unicx *cx)"
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print "{"
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if(msgrep) {
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print "\tu_int i;"
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print ""
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}
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for(i = 0; i < cnt; i++) {
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ie = iename[i]
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uie = toupper(iename[i])
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if(ierep[i]) {
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print "\tif(msg->" ie "_repeat.h.present & UNI_IE_PRESENT)"
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print "\t\tuni_print_ie_internal(UNI_IE_REPEAT, (union uni_ieall *)&msg->" ie "_repeat, cx);"
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}
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if(ienum[i] == "-") {
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print "\tif(msg->" ie ".h.present & UNI_IE_PRESENT)"
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print "\t\tuni_print_ie_internal(UNI_IE_" uie ", (union uni_ieall *)&msg->" ie ", cx);"
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} else {
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print "\tfor(i = 0; i < " ienum[i] "; i++)"
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print "\t\tif(msg->" ie "[i].h.present & UNI_IE_PRESENT)"
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print "\t\t\tuni_print_ie_internal(UNI_IE_" uie ", (union uni_ieall *)&msg->" ie "[i], cx);"
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}
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}
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print "}"
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}
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function gen_check() {
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print ""
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print "static int"
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print "check_" msg "(struct uni_" msg " *m, struct unicx *cx)"
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print "{"
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print "\tint ret = 0;"
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if(msgrep) {
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print "\tu_int i;"
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}
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print ""
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for(i = 0; i < cnt; i++) {
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ie = iename[i]
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if(ierep[i]) {
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if(iecond[i] == "1") {
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print "\tret |= uni_check_ie(UNI_IE_REPEAT, (union uni_ieall *)&m->" ie "_repeat, cx);"
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} else {
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print "\tif(!(" iecond[i] "))"
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print "\t\tret |= IE_ISPRESENT(m->" ie "_repeat);"
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print "\telse"
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print "\t\tret |= uni_check_ie(UNI_IE_REPEAT, (union uni_ieall *)&m->" ie "_repeat, cx);"
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}
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}
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if(ienum[i] == "-") {
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if(iecond[i] == "1") {
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print "\tret |= uni_check_ie(UNI_IE_" toupper(ie) ", (union uni_ieall *)&m->" ie ", cx);"
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} else {
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print "\tif(!(" iecond[i] "))"
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print "\t\tret |= IE_ISPRESENT(m->" ie ");"
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print "\telse"
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print "\t\tret |= uni_check_ie(UNI_IE_" toupper(ie) ", (union uni_ieall *)&m->" ie ", cx);"
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}
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} else {
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print "\tfor(i = 0; i < " ienum[i]" ; i++) {"
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if(iecond[i] == "1") {
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print "\t\tret |= uni_check_ie(UNI_IE_" toupper(ie) ", (union uni_ieall *)&m->" ie "[i], cx);"
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} else {
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print "\t\tif(!(" iecond[i] "))"
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print "\t\t\tret |= IE_ISPRESENT(m->" ie "[i]);"
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print "\t\telse"
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print "\t\t\tret |= uni_check_ie(UNI_IE_" toupper(ie) ", (union uni_ieall *)&m->" ie "[i], cx);"
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}
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print "\t}"
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}
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}
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print ""
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print "\treturn ret;"
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print "}"
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}
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function gen_encode() {
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print ""
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print "static int"
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print "encode_" msg "(struct uni_msg *msg, struct uni_" msg " *p, struct unicx *cx)"
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print "{"
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print "\tu_int mlen;"
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if(msgrep) {
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print "\tu_int i;"
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}
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print ""
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print "\tif(uni_encode_msg_hdr(msg, &p->hdr, UNI_" toupper(msg) ", cx, &mlen))"
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print "\t\treturn (-2);"
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print ""
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for(i = 0; i < cnt; i++) {
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ie = iename[i]
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if(ierep[i]) {
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print "\tif((p->" ie "_repeat.h.present & UNI_IE_PRESENT) &&"
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print "\t uni_encode_ie(UNI_IE_" toupper(ie) ", msg, (union uni_ieall *)&p->" ie "_repeat, cx))"
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print "\t\treturn (0x10000000 + UNI_IE_" toupper(ie) ");"
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}
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if(ienum[i] == "-") {
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print "\tif((p->" ie ".h.present & UNI_IE_PRESENT) &&"
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print "\t uni_encode_ie(UNI_IE_" toupper(ie) ", msg, (union uni_ieall *)&p->" ie ", cx))"
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print "\t\treturn (UNI_IE_" toupper(ie) ");"
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} else {
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print "\tfor(i = 0; i < " ienum[i] "; i++)"
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print "\t\tif((p->" ie "[i].h.present & UNI_IE_PRESENT) &&"
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print "\t\t uni_encode_ie(UNI_IE_" toupper(ie) ", msg, (union uni_ieall *)&p->" ie "[i], cx))"
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print "\t\treturn ((i << 16) + UNI_IE_" toupper(ie) ");"
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}
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}
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print ""
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print "\tmsg->b_buf[mlen+0] = ((msg->b_wptr-msg->b_rptr)-mlen-2) >> 8;"
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print "\tmsg->b_buf[mlen+1] = ((msg->b_wptr-msg->b_rptr)-mlen-2) >> 0;"
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print ""
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print "\treturn (0);"
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print "}"
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}
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function gen_decode() {
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print ""
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print "static int"
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print "decode_" msg "(struct uni_" msg " *out, struct uni_msg *msg,"
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print " enum uni_ietype ie, struct uni_iehdr *hdr, u_int ielen,"
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print " struct unicx *cx)"
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print "{"
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if (msgrep) {
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print " u_int i;"
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print ""
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}
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print " switch (ie) {"
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rep=0
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for (i = 0; i < cnt; i++) {
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ie = iename[i]
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print ""
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print " case UNI_IE_" toupper(ie) ":"
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if (iecond[i] != "1") {
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print " if (!(" iecond[i] "))"
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print " return (DEC_ILL);"
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}
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if (ierep[i]) {
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rep=1
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print " if (IE_ISPRESENT(cx->repeat))"
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print " out->" ie "_repeat = cx->repeat;"
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}
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if (ienum[i] == "-") {
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print " out->" ie ".h = *hdr;"
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print " if (hdr->present & UNI_IE_ERROR)"
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print " return (DEC_ERR);"
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print " if(uni_decode_ie_body(UNI_IE_"toupper(ie)", (union uni_ieall *)&out->"ie", msg, ielen, cx))"
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print " return (DEC_ERR);"
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} else {
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print " for(i = 0; i < " ienum[i] "; i++)"
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print " if (!IE_ISPRESENT(out->" ie "[i])) {"
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print " out->" ie "[i].h = *hdr;"
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print " if (hdr->present & UNI_IE_ERROR)"
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print " return (DEC_ERR);"
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print " if(uni_decode_ie_body(UNI_IE_"toupper(ie)", (union uni_ieall *)&out->"ie"[i], msg, ielen, cx))"
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print " return (DEC_ERR);"
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print " break;"
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print " }"
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}
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print " break;"
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}
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if(rep) {
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print ""
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print " case UNI_IE_REPEAT:"
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print " cx->repeat.h = *hdr;"
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print " if (hdr->present & UNI_IE_ERROR)"
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print " return (DEC_ERR);"
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print " if (uni_decode_ie_body(UNI_IE_REPEAT, (union uni_ieall *)&cx->repeat, msg, ielen, cx))"
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print " return (DEC_ERR);"
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print " break;"
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}
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print ""
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print " default:"
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print " return (DEC_ILL);"
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print " }"
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print " return (DEC_OK);"
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print "}"
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}
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function gen_reg() {
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print ""
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print "static const struct msgdecl decl_" msg " = {"
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print "\t0,"
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print "\t\"" msg "\","
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print "\t(uni_msg_print_f)print_" msg ","
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print "\t(uni_msg_check_f)check_" msg ","
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print "\t(uni_msg_encode_f)encode_" msg ","
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print "\t(uni_msg_decode_f)decode_" msg
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print "};"
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decl[code] = "decl_" msg
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}
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