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9f06a59e3c
This doesn't have an effect now (except in experimental mode), but it will when we support anchors. So we deprecate the use of those in the close command too. For experimental mode we have to avoid using p2pkh; adapt that test. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Changelog-Deprecated: JSON-RPC: `shutdown` no longer allows p2pkh or p2sh addresses.
63 lines
1.2 KiB
C
63 lines
1.2 KiB
C
#include "config.h"
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#include <bitcoin/script.h>
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#include <common/shutdown_scriptpubkey.h>
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/* BOLT #2:
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* 3. if (and only if) `option_shutdown_anysegwit` is negotiated:
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* * `OP_1` through `OP_16` inclusive, followed by a single
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* push of 2 to 40 bytes
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* (witness program versions 1 through 16)
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*/
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static bool is_valid_witnessprog(const u8 *scriptpubkey)
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{
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size_t pushlen;
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if (tal_bytelen(scriptpubkey) < 2)
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return false;
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switch (scriptpubkey[0]) {
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case OP_1:
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case OP_2:
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case OP_3:
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case OP_4:
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case OP_5:
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case OP_6:
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case OP_7:
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case OP_8:
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case OP_9:
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case OP_10:
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case OP_11:
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case OP_12:
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case OP_13:
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case OP_14:
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case OP_15:
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case OP_16:
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break;
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default:
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return false;
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}
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pushlen = scriptpubkey[1];
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/* Must be all of the rest of scriptpubkey */
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if (2 + pushlen != tal_bytelen(scriptpubkey)) {
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return false;
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}
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return pushlen >= 2 && pushlen <= 40;
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}
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bool valid_shutdown_scriptpubkey(const u8 *scriptpubkey,
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bool anysegwit,
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bool anchors)
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{
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if (!anchors) {
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if (is_p2pkh(scriptpubkey, NULL)
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|| is_p2sh(scriptpubkey, NULL))
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return true;
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}
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return is_p2wpkh(scriptpubkey, NULL)
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|| is_p2wsh(scriptpubkey, NULL)
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|| (anysegwit && is_valid_witnessprog(scriptpubkey));
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}
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