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|
#!/bin/sh -
#
# FLASK
set -e
awk=$1
shift
# output files
av_permissions="include/av_permissions.h"
av_perm_to_string="include/av_perm_to_string.h"
cat $* | $awk "
BEGIN {
outfile = \"$av_permissions\"
avpermfile = \"$av_perm_to_string\"
"'
nextstate = "COMMON_OR_AV";
printf("/* This file is automatically generated. Do not edit. */\n") > outfile;
printf("/* This file is automatically generated. Do not edit. */\n") > avpermfile;
;
}
/^[ \t]*#/ {
next;
}
$1 == "class" {
if (nextstate != "COMMON_OR_AV" &&
nextstate != "CLASS_OR_CLASS-OPENBRACKET")
{
printf("Parse error: Unexpected class definition on line %d\n", NR);
next;
}
tclass = $2;
if (tclass in av_defined)
{
printf("Duplicate access vector definition for %s on line %d\n", tclass, NR);
next;
}
av_defined[tclass] = 1;
permission = 1;
nextstate = "INHERITS_OR_CLASS-OPENBRACKET";
next;
}
$1 == "{" {
if (nextstate != "INHERITS_OR_CLASS-OPENBRACKET" &&
nextstate != "CLASS_OR_CLASS-OPENBRACKET" &&
nextstate != "COMMON-OPENBRACKET")
{
printf("Parse error: Unexpected { on line %d\n", NR);
next;
}
if (nextstate == "INHERITS_OR_CLASS-OPENBRACKET")
nextstate = "CLASS-CLOSEBRACKET";
if (nextstate == "CLASS_OR_CLASS-OPENBRACKET")
nextstate = "CLASS-CLOSEBRACKET";
if (nextstate == "COMMON-OPENBRACKET")
nextstate = "COMMON-CLOSEBRACKET";
}
/[a-z][a-z_]*/ {
if (nextstate != "COMMON-CLOSEBRACKET" &&
nextstate != "CLASS-CLOSEBRACKET")
{
printf("Parse error: Unexpected symbol %s on line %d\n", $1, NR);
next;
}
if (nextstate == "COMMON-CLOSEBRACKET")
{
if ((common_name,$1) in common_perms)
{
printf("Duplicate permission %s for common %s on line %d.\n", $1, common_name, NR);
next;
}
common_perms[common_name,$1] = permission;
printf("#define COMMON_%s__%s", toupper(common_name), toupper($1)) > outfile;
printf(" S_(\"%s\")\n", $1) > cpermfile;
}
else
{
if ((tclass,$1) in av_perms)
{
printf("Duplicate permission %s for %s on line %d.\n", $1, tclass, NR);
next;
}
av_perms[tclass,$1] = permission;
printf("#define %s__%s", toupper(tclass), toupper($1)) > outfile;
printf(" S_(SECCLASS_%s, %s__%s, \"%s\")\n", toupper(tclass), toupper(tclass), toupper($1), $1) > avpermfile;
}
spaces = 40 - (length($1) + length(tclass));
if (spaces < 1)
spaces = 1;
for (i = 0; i < spaces; i++)
printf(" ") > outfile;
printf("0x%08xUL\n", permission) > outfile;
permission = permission * 2;
}
$1 == "}" {
if (nextstate != "CLASS-CLOSEBRACKET" &&
nextstate != "COMMON-CLOSEBRACKET")
{
printf("Parse error: Unexpected } on line %d\n", NR);
next;
}
if (nextstate == "COMMON-CLOSEBRACKET")
{
common_base[common_name] = permission;
printf("TE_(common_%s_perm_to_string)\n\n", common_name) > cpermfile;
}
printf("\n") > outfile;
nextstate = "COMMON_OR_AV";
}
END {
if (nextstate != "COMMON_OR_AV" && nextstate != "CLASS_OR_CLASS-OPENBRACKET")
printf("Parse error: Unexpected end of file\n");
}'
# FLASK
|
