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expanded ZAM operations for bit-shifting to allow for int/count shift values

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This commit is contained in:
Vern Paxson 2024-12-04 15:24:11 -07:00
parent 01fe72d9fc
commit 7d25835ca8
1 changed files with 13 additions and 9 deletions
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22
src/script_opt/ZAM/OPs/binary-exprs.op
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@ -37,15 +37,19 @@ binary-expr-op Mask
# Signal that this expression only has mixed-type evaluation.
op-type X
explicit-result-type
eval-mixed A I auto mask = static_cast<uint32_t>($2);
auto a = $1->AsAddr();
if ( a.GetFamily() == IPv4 && mask > 32 )
ERROR(util::fmt("bad IPv4 subnet prefix length: %" PRIu32, mask));
if ( a.GetFamily() == IPv6 && mask > 128 )
ERROR(util::fmt("bad IPv6 subnet prefix length: %" PRIu32, mask));
auto v = make_intrusive<SubNetVal>(a, mask);
Unref($$.AsSubNet());
$$.AsSubNetRef() = v.release();
eval-mixed A I DoMask($$, $1, static_cast<uint32_t>($2))
eval-mixed A U DoMask($$, $1, $2)
macro DoMask(lhs, op1, op2)
auto mask = static_cast<uint32_t>(op2);
auto a = op1->AsAddr();
if ( a.GetFamily() == IPv4 && mask > 32 )
ERROR(util::fmt("bad IPv4 subnet prefix length: %" PRIu32, mask));
if ( a.GetFamily() == IPv6 && mask > 128 )
ERROR(util::fmt("bad IPv6 subnet prefix length: %" PRIu32, mask));
auto v = make_intrusive<SubNetVal>(a, mask);
Unref(lhs.AsSubNet());
lhs.AsSubNetRef() = v.release();
binary-expr-op Mod
op-type I U