lukechilds
/
lightning
mirror of https://github.com/lukechilds/lightning.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

gossipd/test: add test for handling overlong routes. 

This is a weakness with Dijkstra, so write an explicit unit test that
we can find a short enough (but more expensive) route.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
pr-2587
Rusty Russell 6 years ago
parent
981fa68fe0
commit
6dfa46d65a
1 changed files with 191 additions and 0 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 191
      gossipd/test/run-overlong.c

191
gossipd/test/run-overlong.c
View File

@ -0,0 +1,191 @@
#include "../routing.c"
#include "../gossip_store.c"
#include "../broadcast.c"
#include <stdio.h>
void status_fmt(enum log_level level UNUSED, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vprintf(fmt, ap);
printf("\n");
va_end(ap);
}
/* AUTOGENERATED MOCKS START */
/* Generated stub for fromwire_channel_announcement */
bool fromwire_channel_announcement(const tal_t *ctx UNNEEDED, const void *p UNNEEDED, secp256k1_ecdsa_signature *node_signature_1 UNNEEDED, secp256k1_ecdsa_signature *node_signature_2 UNNEEDED, secp256k1_ecdsa_signature *bitcoin_signature_1 UNNEEDED, secp256k1_ecdsa_signature *bitcoin_signature_2 UNNEEDED, u8 **features UNNEEDED, struct bitcoin_blkid *chain_hash UNNEEDED, struct short_channel_id *short_channel_id UNNEEDED, struct node_id *node_id_1 UNNEEDED, struct node_id *node_id_2 UNNEEDED, struct pubkey *bitcoin_key_1 UNNEEDED, struct pubkey *bitcoin_key_2 UNNEEDED)
{ fprintf(stderr, "fromwire_channel_announcement called!\n"); abort(); }
/* Generated stub for fromwire_channel_update */
bool fromwire_channel_update(const void *p UNNEEDED, secp256k1_ecdsa_signature *signature UNNEEDED, struct bitcoin_blkid *chain_hash UNNEEDED, struct short_channel_id *short_channel_id UNNEEDED, u32 *timestamp UNNEEDED, u8 *message_flags UNNEEDED, u8 *channel_flags UNNEEDED, u16 *cltv_expiry_delta UNNEEDED, struct amount_msat *htlc_minimum_msat UNNEEDED, u32 *fee_base_msat UNNEEDED, u32 *fee_proportional_millionths UNNEEDED)
{ fprintf(stderr, "fromwire_channel_update called!\n"); abort(); }
/* Generated stub for fromwire_channel_update_option_channel_htlc_max */
bool fromwire_channel_update_option_channel_htlc_max(const void *p UNNEEDED, secp256k1_ecdsa_signature *signature UNNEEDED, struct bitcoin_blkid *chain_hash UNNEEDED, struct short_channel_id *short_channel_id UNNEEDED, u32 *timestamp UNNEEDED, u8 *message_flags UNNEEDED, u8 *channel_flags UNNEEDED, u16 *cltv_expiry_delta UNNEEDED, struct amount_msat *htlc_minimum_msat UNNEEDED, u32 *fee_base_msat UNNEEDED, u32 *fee_proportional_millionths UNNEEDED, struct amount_msat *htlc_maximum_msat UNNEEDED)
{ fprintf(stderr, "fromwire_channel_update_option_channel_htlc_max called!\n"); abort(); }
/* Generated stub for fromwire_gossipd_local_add_channel */
bool fromwire_gossipd_local_add_channel(const void *p UNNEEDED, struct short_channel_id *short_channel_id UNNEEDED, struct node_id *remote_node_id UNNEEDED, struct amount_sat *satoshis UNNEEDED)
{ fprintf(stderr, "fromwire_gossipd_local_add_channel called!\n"); abort(); }
/* Generated stub for fromwire_gossip_store_channel_announcement */
bool fromwire_gossip_store_channel_announcement(const tal_t *ctx UNNEEDED, const void *p UNNEEDED, u8 **announcement UNNEEDED, struct amount_sat *satoshis UNNEEDED)
{ fprintf(stderr, "fromwire_gossip_store_channel_announcement called!\n"); abort(); }
/* Generated stub for fromwire_gossip_store_channel_delete */
bool fromwire_gossip_store_channel_delete(const void *p UNNEEDED, struct short_channel_id *short_channel_id UNNEEDED)
{ fprintf(stderr, "fromwire_gossip_store_channel_delete called!\n"); abort(); }
/* Generated stub for fromwire_gossip_store_channel_update */
bool fromwire_gossip_store_channel_update(const tal_t *ctx UNNEEDED, const void *p UNNEEDED, u8 **update UNNEEDED)
{ fprintf(stderr, "fromwire_gossip_store_channel_update called!\n"); abort(); }
/* Generated stub for fromwire_gossip_store_local_add_channel */
bool fromwire_gossip_store_local_add_channel(const tal_t *ctx UNNEEDED, const void *p UNNEEDED, u8 **local_add UNNEEDED)
{ fprintf(stderr, "fromwire_gossip_store_local_add_channel called!\n"); abort(); }
/* Generated stub for fromwire_gossip_store_node_announcement */
bool fromwire_gossip_store_node_announcement(const tal_t *ctx UNNEEDED, const void *p UNNEEDED, u8 **announcement UNNEEDED)
{ fprintf(stderr, "fromwire_gossip_store_node_announcement called!\n"); abort(); }
/* Generated stub for fromwire_node_announcement */
bool fromwire_node_announcement(const tal_t *ctx UNNEEDED, const void *p UNNEEDED, secp256k1_ecdsa_signature *signature UNNEEDED, u8 **features UNNEEDED, u32 *timestamp UNNEEDED, struct node_id *node_id UNNEEDED, u8 rgb_color[3] UNNEEDED, u8 alias[32] UNNEEDED, u8 **addresses UNNEEDED)
{ fprintf(stderr, "fromwire_node_announcement called!\n"); abort(); }
/* Generated stub for fromwire_peektype */
int fromwire_peektype(const u8 *cursor UNNEEDED)
{ fprintf(stderr, "fromwire_peektype called!\n"); abort(); }
/* Generated stub for fromwire_wireaddr */
bool fromwire_wireaddr(const u8 **cursor UNNEEDED, size_t *max UNNEEDED, struct wireaddr *addr UNNEEDED)
{ fprintf(stderr, "fromwire_wireaddr called!\n"); abort(); }
/* Generated stub for onion_type_name */
const char *onion_type_name(int e UNNEEDED)
{ fprintf(stderr, "onion_type_name called!\n"); abort(); }
/* Generated stub for sanitize_error */
char *sanitize_error(const tal_t *ctx UNNEEDED, const u8 *errmsg UNNEEDED,
struct channel_id *channel_id UNNEEDED)
{ fprintf(stderr, "sanitize_error called!\n"); abort(); }
/* Generated stub for status_failed */
void status_failed(enum status_failreason code UNNEEDED,
const char *fmt UNNEEDED, ...)
{ fprintf(stderr, "status_failed called!\n"); abort(); }
/* Generated stub for towire_errorfmt */
u8 *towire_errorfmt(const tal_t *ctx UNNEEDED,
const struct channel_id *channel UNNEEDED,
const char *fmt UNNEEDED, ...)
{ fprintf(stderr, "towire_errorfmt called!\n"); abort(); }
/* Generated stub for towire_gossipd_local_add_channel */
u8 *towire_gossipd_local_add_channel(const tal_t *ctx UNNEEDED, const struct short_channel_id *short_channel_id UNNEEDED, const struct node_id *remote_node_id UNNEEDED, struct amount_sat satoshis UNNEEDED)
{ fprintf(stderr, "towire_gossipd_local_add_channel called!\n"); abort(); }
/* Generated stub for towire_gossip_store_channel_announcement */
u8 *towire_gossip_store_channel_announcement(const tal_t *ctx UNNEEDED, const u8 *announcement UNNEEDED, struct amount_sat satoshis UNNEEDED)
{ fprintf(stderr, "towire_gossip_store_channel_announcement called!\n"); abort(); }
/* Generated stub for towire_gossip_store_channel_delete */
u8 *towire_gossip_store_channel_delete(const tal_t *ctx UNNEEDED, const struct short_channel_id *short_channel_id UNNEEDED)
{ fprintf(stderr, "towire_gossip_store_channel_delete called!\n"); abort(); }
/* Generated stub for towire_gossip_store_channel_update */
u8 *towire_gossip_store_channel_update(const tal_t *ctx UNNEEDED, const u8 *update UNNEEDED)
{ fprintf(stderr, "towire_gossip_store_channel_update called!\n"); abort(); }
/* Generated stub for towire_gossip_store_local_add_channel */
u8 *towire_gossip_store_local_add_channel(const tal_t *ctx UNNEEDED, const u8 *local_add UNNEEDED)
{ fprintf(stderr, "towire_gossip_store_local_add_channel called!\n"); abort(); }
/* Generated stub for towire_gossip_store_node_announcement */
u8 *towire_gossip_store_node_announcement(const tal_t *ctx UNNEEDED, const u8 *announcement UNNEEDED)
{ fprintf(stderr, "towire_gossip_store_node_announcement called!\n"); abort(); }
/* Generated stub for update_peers_broadcast_index */
void update_peers_broadcast_index(struct list_head *peers UNNEEDED, u32 offset UNNEEDED)
{ fprintf(stderr, "update_peers_broadcast_index called!\n"); abort(); }
/* Generated stub for wire_type_name */
const char *wire_type_name(int e UNNEEDED)
{ fprintf(stderr, "wire_type_name called!\n"); abort(); }
/* AUTOGENERATED MOCKS END */
#if DEVELOPER
/* Generated stub for memleak_remove_htable */
void memleak_remove_htable(struct htable *memtable UNNEEDED, const struct htable *ht UNNEEDED)
{ fprintf(stderr, "memleak_remove_htable called!\n"); abort(); }
/* Generated stub for memleak_remove_intmap_ */
void memleak_remove_intmap_(struct htable *memtable UNNEEDED, const struct intmap *m UNNEEDED)
{ fprintf(stderr, "memleak_remove_intmap_ called!\n"); abort(); }
#endif
static void node_id_from_privkey(const struct privkey *p, struct node_id *id)
{
struct pubkey k;
pubkey_from_privkey(p, &k);
node_id_from_pubkey(id, &k);
}
#define NUM_NODES 21
/* We create an arrangement of nodes, each node N connected to N+1 and
* to node 1. The cost for each N to N+1 route is 1, for N to 1 is
* 2^N. That means it's always cheapest to go the longer route */
int main(void)
{
setup_locale();
struct routing_state *rstate;
struct node_id ids[NUM_NODES];
struct chan **route;
struct amount_msat last_fee;
secp256k1_ctx = secp256k1_context_create(SECP256K1_CONTEXT_VERIFY
| SECP256K1_CONTEXT_SIGN);
setup_tmpctx();
for (size_t i = 0; i < NUM_NODES; i++) {
struct privkey tmp;
memset(&tmp, i+1, sizeof(tmp));
node_id_from_privkey(&tmp, &ids[i]);
}
/* We are node 0 */
rstate = new_routing_state(tmpctx, NULL, &ids[0], 0, NULL, NULL, NULL);
for (size_t i = 0; i < NUM_NODES; i++) {
struct chan *chan;
struct half_chan *hc;
struct short_channel_id scid;
new_node(rstate, &ids[i]);
if (i == 0)
continue;
if (!mk_short_channel_id(&scid, i, i-1, 0))
abort();
chan = new_chan(rstate, &scid, &ids[i], &ids[i-1],
AMOUNT_SAT(1000000));
hc = &chan->half[node_id_idx(&ids[i-1], &ids[i])];
hc->bcast.index = 1;
hc->base_fee = 1;
hc->proportional_fee = 0;
hc->delay = 0;
hc->channel_flags = node_id_idx(&ids[i-1], &ids[i]);
hc->htlc_minimum = AMOUNT_MSAT(0);
hc->htlc_maximum = AMOUNT_MSAT(1000000 * 1000);
if (i <= 2)
continue;
if (!mk_short_channel_id(&scid, i, 1, 0))
abort();
chan = new_chan(rstate, &scid, &ids[i], &ids[1],
AMOUNT_SAT(1000000));
hc = &chan->half[node_id_idx(&ids[1], &ids[i])];
hc->bcast.index = 1;
hc->base_fee = 1 << i;
hc->proportional_fee = 0;
hc->delay = 0;
hc->channel_flags = node_id_idx(&ids[1], &ids[i]);
hc->htlc_minimum = AMOUNT_MSAT(0);
hc->htlc_maximum = AMOUNT_MSAT(1000000 * 1000);
}
for (size_t i = ROUTING_MAX_HOPS; i > 1; i--) {
struct amount_msat fee;
route = find_route(tmpctx, rstate, &ids[0], &ids[NUM_NODES-1],
AMOUNT_MSAT(1000), 0, 0.0, NULL,
i, &fee);
assert(route);
assert(tal_count(route) == i);
if (i != ROUTING_MAX_HOPS)
assert(amount_msat_greater(fee, last_fee));
last_fee = fee;
}
tal_free(tmpctx);
secp256k1_context_destroy(secp256k1_ctx);
return 0;
}
Write Preview
Loading…
Cancel
Save