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ad8dfaca1c
If we tell it a struct is variable length, make fromwire() allocate and return it off ctx. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
138 lines
3.7 KiB
C
138 lines
3.7 KiB
C
#include <bitcoin/tx.h>
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#include <ccan/array_size/array_size.h>
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#include <ccan/crypto/shachain/shachain.h>
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#include <common/htlc_wire.h>
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#include <common/memleak.h>
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#include <wire/wire.h>
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/* FIXME: We could adapt tools/generate-wire.py to generate structures
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* and code like this. */
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void towire_added_htlc(u8 **pptr, const struct added_htlc *added)
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{
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towire_u64(pptr, added->id);
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towire_u64(pptr, added->amount_msat);
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towire_sha256(pptr, &added->payment_hash);
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towire_u32(pptr, added->cltv_expiry);
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towire(pptr, added->onion_routing_packet,
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sizeof(added->onion_routing_packet));
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}
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void towire_fulfilled_htlc(u8 **pptr, const struct fulfilled_htlc *fulfilled)
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{
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towire_u64(pptr, fulfilled->id);
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towire_preimage(pptr, &fulfilled->payment_preimage);
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}
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void towire_failed_htlc(u8 **pptr, const struct failed_htlc *failed)
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{
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towire_u64(pptr, failed->id);
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towire_u16(pptr, failed->malformed);
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towire_u16(pptr, tal_count(failed->failreason));
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towire_u8_array(pptr, failed->failreason, tal_count(failed->failreason));
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}
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void towire_htlc_state(u8 **pptr, const enum htlc_state hstate)
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{
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towire_u8(pptr, hstate);
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}
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void towire_changed_htlc(u8 **pptr, const struct changed_htlc *changed)
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{
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towire_htlc_state(pptr, changed->newstate);
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towire_u64(pptr, changed->id);
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}
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void towire_side(u8 **pptr, const enum side side)
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{
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towire_u8(pptr, side);
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}
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void towire_shachain(u8 **pptr, const struct shachain *shachain)
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{
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size_t i;
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towire_u64(pptr, shachain->min_index);
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towire_u32(pptr, shachain->num_valid);
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for (i = 0; i < shachain->num_valid; i++) {
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towire_u64(pptr, shachain->known[i].index);
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towire_sha256(pptr, &shachain->known[i].hash);
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}
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}
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void fromwire_added_htlc(const u8 **cursor, size_t *max,
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struct added_htlc *added)
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{
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added->id = fromwire_u64(cursor, max);
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added->amount_msat = fromwire_u64(cursor, max);
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fromwire_sha256(cursor, max, &added->payment_hash);
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added->cltv_expiry = fromwire_u32(cursor, max);
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fromwire(cursor, max, added->onion_routing_packet,
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sizeof(added->onion_routing_packet));
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}
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void fromwire_fulfilled_htlc(const u8 **cursor, size_t *max,
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struct fulfilled_htlc *fulfilled)
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{
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fulfilled->id = fromwire_u64(cursor, max);
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fromwire_preimage(cursor, max, &fulfilled->payment_preimage);
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}
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struct failed_htlc *fromwire_failed_htlc(const tal_t *ctx, const u8 **cursor, size_t *max)
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{
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u16 failreason_len;
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struct failed_htlc *failed = tal(ctx, struct failed_htlc);
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failed->id = fromwire_u64(cursor, max);
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failed->malformed = fromwire_u16(cursor, max);
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failreason_len = fromwire_u16(cursor, max);
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failed->failreason = tal_arr(failed, u8, failreason_len);
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fromwire_u8_array(cursor, max, failed->failreason, failreason_len);
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return failed;
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}
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enum htlc_state fromwire_htlc_state(const u8 **cursor, size_t *max)
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{
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enum htlc_state hstate = fromwire_u8(cursor, max);
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if (hstate >= HTLC_STATE_INVALID) {
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hstate = HTLC_STATE_INVALID;
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fromwire_fail(cursor, max);
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}
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return hstate;
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}
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void fromwire_changed_htlc(const u8 **cursor, size_t *max,
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struct changed_htlc *changed)
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{
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changed->newstate = fromwire_htlc_state(cursor, max);
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changed->id = fromwire_u64(cursor, max);
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}
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enum side fromwire_side(const u8 **cursor, size_t *max)
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{
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enum side side = fromwire_u8(cursor, max);
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if (side >= NUM_SIDES) {
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side = NUM_SIDES;
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fromwire_fail(cursor, max);
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}
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return side;
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}
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void fromwire_shachain(const u8 **cursor, size_t *max,
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struct shachain *shachain)
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{
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size_t i;
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shachain->min_index = fromwire_u64(cursor, max);
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shachain->num_valid = fromwire_u32(cursor, max);
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if (shachain->num_valid > ARRAY_SIZE(shachain->known)) {
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fromwire_fail(cursor, max);
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return;
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}
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for (i = 0; i < shachain->num_valid; i++) {
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shachain->known[i].index = fromwire_u64(cursor, max);
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fromwire_sha256(cursor, max, &shachain->known[i].hash);
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}
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}
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