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Packit |
6c4009 |
# Generate dl-tunable-list.h from dl-tunables.list
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Packit |
6c4009 |
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Packit |
6c4009 |
BEGIN {
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Packit |
6c4009 |
min_of["STRING"]="0"
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6c4009 |
max_of["STRING"]="0"
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Packit |
6c4009 |
min_of["INT_32"]="INT32_MIN"
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Packit |
6c4009 |
max_of["INT_32"]="INT32_MAX"
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6c4009 |
min_of["UINT_64"]="0"
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6c4009 |
max_of["UINT_64"]="UINT64_MAX"
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6c4009 |
min_of["SIZE_T"]="0"
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6c4009 |
max_of["SIZE_T"]="SIZE_MAX"
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6c4009 |
tunable=""
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6c4009 |
ns=""
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6c4009 |
top_ns=""
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6c4009 |
}
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Packit |
6c4009 |
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6c4009 |
# Skip over blank lines and comments.
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6c4009 |
/^#/ {
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6c4009 |
next
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6c4009 |
}
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6c4009 |
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Packit |
6c4009 |
/^[ \t]*$/ {
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6c4009 |
next
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6c4009 |
}
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6c4009 |
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6c4009 |
# Beginning of either a top namespace, tunable namespace or a tunable, decided
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6c4009 |
# on the current value of TUNABLE, NS or TOP_NS.
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6c4009 |
$2 == "{" {
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6c4009 |
if (top_ns == "") {
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6c4009 |
top_ns = $1
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6c4009 |
}
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6c4009 |
else if (ns == "") {
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6c4009 |
ns = $1
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6c4009 |
}
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6c4009 |
else if (tunable == "") {
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6c4009 |
tunable = $1
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6c4009 |
}
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6c4009 |
else {
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6c4009 |
printf ("Unexpected occurrence of '{': %s:%d\n", FILENAME, FNR)
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6c4009 |
exit 1
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6c4009 |
}
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Packit |
6c4009 |
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Packit |
6c4009 |
next
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Packit |
6c4009 |
}
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Packit |
6c4009 |
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Packit |
6c4009 |
# End of either a top namespace, tunable namespace or a tunable.
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Packit |
6c4009 |
$1 == "}" {
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Packit |
6c4009 |
if (tunable != "") {
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Packit |
6c4009 |
# Tunables definition ended, now fill in default attributes.
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Packit |
6c4009 |
if (!types[top_ns,ns,tunable]) {
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6c4009 |
types[top_ns,ns,tunable] = "STRING"
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6c4009 |
}
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6c4009 |
if (!minvals[top_ns,ns,tunable]) {
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6c4009 |
minvals[top_ns,ns,tunable] = min_of[types[top_ns,ns,tunable]]
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6c4009 |
}
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6c4009 |
if (!maxvals[top_ns,ns,tunable]) {
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6c4009 |
maxvals[top_ns,ns,tunable] = max_of[types[top_ns,ns,tunable]]
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6c4009 |
}
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6c4009 |
if (!env_alias[top_ns,ns,tunable]) {
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6c4009 |
env_alias[top_ns,ns,tunable] = "NULL"
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6c4009 |
}
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Packit |
6c4009 |
if (!security_level[top_ns,ns,tunable]) {
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Packit |
6c4009 |
security_level[top_ns,ns,tunable] = "SXID_ERASE"
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Packit |
6c4009 |
}
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Packit |
6c4009 |
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Packit |
6c4009 |
tunable = ""
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Packit |
6c4009 |
}
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Packit |
6c4009 |
else if (ns != "") {
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Packit |
6c4009 |
ns = ""
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Packit |
6c4009 |
}
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Packit |
6c4009 |
else if (top_ns != "") {
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Packit |
6c4009 |
top_ns = ""
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Packit |
6c4009 |
}
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Packit |
6c4009 |
else {
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6c4009 |
printf ("syntax error: extra }: %s:%d\n", FILENAME, FNR)
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6c4009 |
exit 1
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Packit |
6c4009 |
}
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Packit |
6c4009 |
next
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Packit |
6c4009 |
}
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Packit |
6c4009 |
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6c4009 |
# Everything else, which could either be a tunable without any attributes or a
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Packit |
6c4009 |
# tunable attribute.
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Packit |
6c4009 |
{
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Packit |
6c4009 |
if (ns == "") {
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Packit |
6c4009 |
printf("Line %d: Invalid tunable outside a namespace: %s\n", NR, $0)
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Packit |
6c4009 |
exit 1
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Packit |
6c4009 |
}
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Packit |
6c4009 |
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Packit |
6c4009 |
if (tunable == "") {
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Packit |
6c4009 |
# We encountered a tunable without any attributes, so note it with a
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Packit |
6c4009 |
# default.
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Packit |
6c4009 |
types[top_ns,ns,$1] = "STRING"
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Packit |
6c4009 |
next
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Packit |
6c4009 |
}
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Packit |
6c4009 |
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Packit |
6c4009 |
# Otherwise, we have encountered a tunable attribute.
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Packit |
6c4009 |
split($0, arr, ":")
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Packit |
6c4009 |
attr = gensub(/^[ \t]+|[ \t]+$/, "", "g", arr[1])
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Packit |
6c4009 |
val = gensub(/^[ \t]+|[ \t]+$/, "", "g", arr[2])
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Packit |
6c4009 |
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Packit |
6c4009 |
if (attr == "type") {
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Packit |
6c4009 |
types[top_ns,ns,tunable] = val
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Packit |
6c4009 |
}
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Packit |
6c4009 |
else if (attr == "minval") {
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Packit |
6c4009 |
minvals[top_ns,ns,tunable] = val
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Packit |
6c4009 |
}
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Packit |
6c4009 |
else if (attr == "maxval") {
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Packit |
6c4009 |
maxvals[top_ns,ns,tunable] = val
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Packit |
6c4009 |
}
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Packit |
6c4009 |
else if (attr == "env_alias") {
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Packit |
6c4009 |
env_alias[top_ns,ns,tunable] = sprintf("\"%s\"", val)
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Packit |
6c4009 |
}
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Packit |
6c4009 |
else if (attr == "security_level") {
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Packit |
6c4009 |
if (val == "SXID_ERASE" || val == "SXID_IGNORE" || val == "NONE") {
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Packit |
6c4009 |
security_level[top_ns,ns,tunable] = val
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Packit |
6c4009 |
}
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Packit |
6c4009 |
else {
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Packit |
6c4009 |
printf("Line %d: Invalid value (%s) for security_level: %s, ", NR, val,
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Packit |
6c4009 |
$0)
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Packit |
6c4009 |
print("Allowed values are 'SXID_ERASE', 'SXID_IGNORE', or 'NONE'")
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Packit |
6c4009 |
exit 1
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Packit |
6c4009 |
}
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Packit |
6c4009 |
}
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Packit |
6c4009 |
else if (attr == "default") {
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Packit |
6c4009 |
if (types[top_ns,ns,tunable] == "STRING") {
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Packit |
6c4009 |
default_val[top_ns,ns,tunable] = sprintf(".strval = \"%s\"", val);
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Packit |
6c4009 |
}
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Packit |
6c4009 |
else {
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Packit |
6c4009 |
default_val[top_ns,ns,tunable] = sprintf(".numval = %s", val)
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Packit |
6c4009 |
}
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Packit |
6c4009 |
}
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Packit |
6c4009 |
}
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Packit |
6c4009 |
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Packit |
6c4009 |
END {
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Packit |
6c4009 |
if (ns != "") {
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Packit |
6c4009 |
print "Unterminated namespace. Is a closing brace missing?"
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Packit |
6c4009 |
exit 1
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Packit |
6c4009 |
}
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Packit |
6c4009 |
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Packit |
6c4009 |
print "/* AUTOGENERATED by gen-tunables.awk. */"
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Packit |
6c4009 |
print "#ifndef _TUNABLES_H_"
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Packit |
6c4009 |
print "# error \"Do not include this file directly.\""
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Packit |
6c4009 |
print "# error \"Include tunables.h instead.\""
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Packit |
6c4009 |
print "#endif"
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Packit |
6c4009 |
print "#include <dl-procinfo.h>\n"
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Packit |
6c4009 |
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Packit |
6c4009 |
# Now, the enum names
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Packit |
6c4009 |
print "\ntypedef enum"
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Packit |
6c4009 |
print "{"
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Packit |
6c4009 |
for (tnm in types) {
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Packit |
6c4009 |
split (tnm, indices, SUBSEP);
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Packit |
6c4009 |
t = indices[1];
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Packit |
6c4009 |
n = indices[2];
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Packit |
6c4009 |
m = indices[3];
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Packit |
6c4009 |
printf (" TUNABLE_ENUM_NAME(%s, %s, %s),\n", t, n, m);
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Packit |
6c4009 |
}
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Packit |
6c4009 |
print "} tunable_id_t;\n"
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Packit |
6c4009 |
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Packit |
6c4009 |
# Finally, the tunable list.
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Packit |
6c4009 |
print "\n#ifdef TUNABLES_INTERNAL"
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Packit |
6c4009 |
print "static tunable_t tunable_list[] attribute_relro = {"
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Packit |
6c4009 |
for (tnm in types) {
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Packit |
6c4009 |
split (tnm, indices, SUBSEP);
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Packit |
6c4009 |
t = indices[1];
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Packit |
6c4009 |
n = indices[2];
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Packit |
6c4009 |
m = indices[3];
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Packit |
6c4009 |
printf (" {TUNABLE_NAME_S(%s, %s, %s)", t, n, m)
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Packit |
6c4009 |
printf (", {TUNABLE_TYPE_%s, %s, %s}, {%s}, NULL, TUNABLE_SECLEVEL_%s, %s},\n",
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Packit |
6c4009 |
types[t,n,m], minvals[t,n,m], maxvals[t,n,m],
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Packit |
6c4009 |
default_val[t,n,m], security_level[t,n,m], env_alias[t,n,m]);
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Packit |
6c4009 |
}
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Packit |
6c4009 |
print "};"
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Packit |
6c4009 |
print "#endif"
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Packit |
6c4009 |
}
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