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# Scan a file of route-type definitions (see eg route_types.txt) and
# generate a corresponding header file with:
#
# - enum of Zserv route-types
# - redistribute strings for the various Quagga daemons
#
# See route_types.txt for the format.
#
#
BEGIN {
FS="[,]";
# globals
exitret = 0;
tcount = 0;
# formats for output
## the define format
redist_def_fmt = "#define QUAGGA_REDIST_STR_%s \\\n";
## DEFUN/vty route-type argument
redist_str_fmt = "\"(%s)\"\n";
redist_help_def_fmt = "#define QUAGGA_REDIST_HELP_STR_%s";
redist_help_str_fmt = " \\\n \"%s\\n\"";
# header
header = "/* Auto-generated from route_types.txt by " ARGV[0] ". */\n";
header = header "/* Do not edit! */\n";
header = header "\n#ifndef _QUAGGA_ROUTE_TYPES_H\n";
header = header "#define _QUAGGA_ROUTE_TYPES_H\n";
footer = "#endif /* _QUAGGA_ROUTE_TYPES_H */\n";
printf ("%s\n", header);
}
# Chomp comment lines
($0 ~ /^#/) {
next;
}
# get rid of the commas, leading/trailling whitespace and
# quotes
{
for (i = 1; i <= NF; i++) {
#print "before:" $i;
$i = gensub(/^[[:blank:]]*(.*)[,]*.*/, "\\1", "g",$i);
$i = gensub(/^["](.*)["]$/, "\\1", "g", $i);
#print "after :" $i;
}
}
# 7 field format:
# type cname daemon C 4 6 short help
(NF >= 7) {
#print "7", $1, $0;
if ($1 in types) {
print "error: attempt to redefine", $1;
exitret = 1;
exit exitret;
}
typesbynum[tcount] = $1;
types[$1,"num"] = tcount++;
types[$1,"cname"] = $2;
types[$1,"daemon"] = $3;
types[$1,"C"] = $4;
types[$1,"4"] = strtonum($5);
types[$1,"6"] = strtonum($6);
types[$1,"shelp"] = $7;
#print "num :", types[$1,"num"]
#print "cname :", types[$1,"cname"]
#print "daemon:", types[$1,"daemon"];
#print "char :", types[$1,"C"];
};
# 2 field: type "long description"
(NF == 2) {
#print "2", $1, $2;
if (!(($1 SUBSEP "num") in types)) {
print "error: type", $1, "must be defined before help str";
exitret = 2;
exit exitret;
}
types[$1,"lhelp"] = $2;
}
END {
if (exitret)
exit exitret;
# The enums
# not yet...
#printf("enum\n{\n");
#for (i = 0; i < tcount; i++) {
# type = typesbynum[i];
# if (type != "" && types[type,"num"] == i)
# printf (" %s,\n", type);
#}
#printf (" ZEBRA_ROUTE_MAX,\n};\n\n");
# the redistribute defines
for (i = 0; i < tcount; i++) {
type = typesbynum[i];
# must be a type, and must cross-check against recorded type
if (type == "" || types[type,"num"] != i)
continue;
# ignore route types that can't be redistributed
if (!(types[type,"4"] || types[type,"6"]))
continue;
# must have a daemon name
if (!((type SUBSEP "daemon") in types))
continue;
if (!(daemon = types[type,"daemon"]))
continue;
# might have done this daemon already?
if (daemon in seen_daemons)
continue;
cname = types[type,"cname"];
all = all "|" cname;
rstr = "";
hstr = "";
# add it to the others
for (j = 0; j < tcount; j++) {
# ignore self
if (i == j)
continue;
type2 = typesbynum[j];
# type2 must be valid, and self-check.
if (type2 == "" || types[type2,"num"] != j)
continue;
# ignore different route types for the same daemon
# (eg system/kernel/connected)
if (types[type2,"daemon"] == daemon)
continue;
if ((types[type2,"4"] && types[type,"4"]) \
|| (types[type2,"6"] && types[type,"6"])) {
if (rstr == "")
rstr = types[type2,"cname"];
else
rstr = rstr "|" types[type2,"cname"];
if ((type2 SUBSEP "lhelp") in types)
hstr2 = types[type2,"lhelp"];
else if ((type2 SUBSEP "shelp") in types)
hstr2 = types[type2,"shelp"];
else
hstr2 = types[type2,"cname"];
hstr = hstr sprintf(redist_help_str_fmt, hstr2);
}
}
# dont double-process daemons.
seen_daemons[daemon] = 1;
printf("/* %s */\n", daemon);
printf(redist_def_fmt, toupper(daemon));
printf(redist_str_fmt, rstr);
printf(redist_help_def_fmt, toupper(daemon));
printf("%s", hstr);
printf("\n\n");
}
#printf("#define QUAGGA_REDIST_STR_ALL %s\n",all);
# for (i = 0; i < lcount; i++) {
# if (mlists[i] != "")
# printf (mlistformat "\n", mlists[i]);
# }
printf (footer);
}
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