Brendan Creane 8cac8b117b net/dns/resolver: set TC flag when UDP responses exceed size limits (#18157) ...

The forwarder was not setting the Truncated (TC) flag when UDP DNS
responses exceeded either the EDNS buffer size (if present) or the
RFC 1035 default 512-byte limit. This affected DoH, TCP fallback,
and UDP response paths.

The fix ensures checkResponseSizeAndSetTC is called in all code paths
that return UDP responses, enforcing both EDNS and default UDP size
limits.

Added comprehensive unit tests and consolidated duplicate test helpers.

Updates #18107

Signed-off-by: Brendan Creane <bcreane@gmail.com>

2026-01-30 17:52:54 -08:00

..

debug.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

doh_test.go

all: remove AUTHORS file and references to it

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forwarder_test.go

net/dns/resolver: set TC flag when UDP responses exceed size limits (#18157)

2026-01-30 17:52:54 -08:00

forwarder.go

net/dns/resolver: set TC flag when UDP responses exceed size limits (#18157)

2026-01-30 17:52:54 -08:00

macios_ext.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

tsdns_server_test.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

tsdns_test.go

net/dns/resolver: set TC flag when UDP responses exceed size limits (#18157)

2026-01-30 17:52:54 -08:00

tsdns.go

net/dns/resolver: set TC flag when UDP responses exceed size limits (#18157)

2026-01-30 17:52:54 -08:00