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fuzz: target for channel_reestablish

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Fuzz the decoding and encoding of channel_reestablish.
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Matt Morehouse 2023-08-21 15:35:13 -05:00 • committed by Rusty Russell
parent 7686909c65
commit b7b046ce83
1 changed files with 73 additions and 0 deletions
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73
tests/fuzz/fuzz-wire-channel_reestablish.c Normal file
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#include "config.h"
#include <assert.h>
#include <ccan/mem/mem.h>
#include <stdint.h>
#include <tests/fuzz/libfuzz.h>
#include <tests/fuzz/wire.h>
#include <wire/peer_wire.h>
struct channel_reestablish {
struct channel_id channel_id;
u64 next_commitment_number;
u64 next_revocation_number;
struct secret your_last_per_commitment_secret;
struct pubkey my_current_per_commitment_point;
struct tlv_channel_reestablish_tlvs *tlvs;
};
static void *encode(const tal_t *ctx, const struct channel_reestablish *s)
{
return towire_channel_reestablish(
ctx, &s->channel_id, s->next_commitment_number,
s->next_revocation_number, &s->your_last_per_commitment_secret,
&s->my_current_per_commitment_point, s->tlvs);
}
static struct channel_reestablish *decode(const tal_t *ctx, const void *p)
{
struct channel_reestablish *s = tal(ctx, struct channel_reestablish);
if (fromwire_channel_reestablish(
s, p, &s->channel_id, &s->next_commitment_number,
&s->next_revocation_number, &s->your_last_per_commitment_secret,
&s->my_current_per_commitment_point, &s->tlvs))
return s;
return tal_free(s);
}
static bool equal(const struct channel_reestablish *x,
const struct channel_reestablish *y)
{
size_t upto_tlvs = (uintptr_t)&x->tlvs - (uintptr_t)x;
if (memcmp(x, y, upto_tlvs) != 0)
return false;
assert(x->tlvs && y->tlvs);
if (!memeq(x->tlvs->next_funding, tal_bytelen(x->tlvs->next_funding),
y->tlvs->next_funding, tal_bytelen(y->tlvs->next_funding)))
return false;
if (!memeq(x->tlvs->next_to_send, tal_bytelen(x->tlvs->next_to_send),
y->tlvs->next_to_send, tal_bytelen(y->tlvs->next_to_send)))
return false;
if (!memeq(x->tlvs->desired_channel_type,
tal_bytelen(x->tlvs->desired_channel_type),
y->tlvs->desired_channel_type,
tal_bytelen(y->tlvs->desired_channel_type)))
return false;
if (!memeq(x->tlvs->current_channel_type,
tal_bytelen(x->tlvs->current_channel_type),
y->tlvs->current_channel_type,
tal_bytelen(y->tlvs->current_channel_type)))
return false;
return memeq(x->tlvs->upgradable_channel_type,
tal_bytelen(x->tlvs->upgradable_channel_type),
y->tlvs->upgradable_channel_type,
tal_bytelen(y->tlvs->upgradable_channel_type));
}
void run(const u8 *data, size_t size)
{
test_decode_encode(data, size, WIRE_CHANNEL_REESTABLISH,
struct channel_reestablish);
}