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add more fields to gossmods_listpeerchannels
Add spendable/receivable and is_local fields to the callback function used in gossmods_from_listpeerchannels. This allows to do more fine grained use of the listpeerchannels call. The first use case is renepay, for which we need to ignore the htlc_max of the local channels only.
This commit is contained in:
Lagrang3
Rusty Russell
parent
5b76c2fbfa
commit
56ac5eebef
7 changed files with 83 additions and 35 deletions
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@ -9,16 +9,23 @@ void gossmod_add_localchan(struct gossmap_localmods *mods,
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const struct node_id *self,
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const struct node_id *peer,
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const struct short_channel_id_dir *scidd,
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struct amount_msat min,
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struct amount_msat max,
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struct amount_msat htlcmin,
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struct amount_msat htlcmax,
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struct amount_msat spendable,
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struct amount_msat fee_base,
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u32 fee_proportional,
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u32 cltv_delta,
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bool enabled,
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bool is_local UNUSED,
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const char *buf UNUSED,
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const jsmntok_t *chantok UNUSED,
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void *cbarg UNUSED)
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{
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struct amount_msat min = htlcmin, max = htlcmax;
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if (amount_msat_less(spendable, max))
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max = spendable;
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/* FIXME: features? */
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gossmap_local_addchan(mods, self, peer, scidd->scid, NULL);
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@ -40,12 +47,14 @@ gossmods_from_listpeerchannels_(const tal_t *ctx,
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const struct node_id *self,
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const struct node_id *peer,
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const struct short_channel_id_dir *scidd,
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struct amount_msat min,
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struct amount_msat max,
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struct amount_msat htlcmin,
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struct amount_msat htlcmax,
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struct amount_msat sr_able,
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struct amount_msat fee_base,
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u32 fee_proportional,
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u32 cltv_delta,
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bool enabled,
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bool is_local,
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const char *buf,
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const jsmntok_t *chantok,
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void *cbarg),
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@ -130,10 +139,6 @@ gossmods_from_listpeerchannels_(const tal_t *ctx,
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&& !streq(state, "CHANNELD_AWAITING_SPLICE"))
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enabled = false;
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/* Cut htlc max to spendable. */
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if (amount_msat_less(spendable, htlc_max[LOCAL]))
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htlc_max[LOCAL] = spendable;
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/* We route better if we know we won't charge
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* ourselves fees (though if fees are a signal on what
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* channel we prefer to use, this ignores that
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@ -146,8 +151,8 @@ gossmods_from_listpeerchannels_(const tal_t *ctx,
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/* We add both directions */
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cb(mods, self, &dst, &scidd, htlc_min[LOCAL], htlc_max[LOCAL],
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fee_base[LOCAL], fee_proportional[LOCAL], cltv_delta[LOCAL],
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enabled, buf, channel, cbarg);
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spendable, fee_base[LOCAL], fee_proportional[LOCAL],
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cltv_delta[LOCAL], enabled, true, buf, channel, cbarg);
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/* If we didn't have a remote update, it's not usable yet */
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if (fee_proportional[REMOTE] == -1U)
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@ -155,13 +160,9 @@ gossmods_from_listpeerchannels_(const tal_t *ctx,
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scidd.dir = !scidd.dir;
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/* Cut htlc max to receivable. */
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if (amount_msat_less(receivable, htlc_max[REMOTE]))
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htlc_max[REMOTE] = receivable;
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cb(mods, self, &dst, &scidd, htlc_min[REMOTE], htlc_max[REMOTE],
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fee_base[REMOTE], fee_proportional[REMOTE], cltv_delta[REMOTE],
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enabled, buf, channel, cbarg);
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receivable, fee_base[REMOTE], fee_proportional[REMOTE],
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cltv_delta[REMOTE], enabled, false, buf, channel, cbarg);
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}
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return mods;
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@ -30,12 +30,14 @@ struct gossmap_localmods *gossmods_from_listpeerchannels_(const tal_t *ctx,
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const struct node_id *self_,
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const struct node_id *peer,
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const struct short_channel_id_dir *scidd,
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struct amount_msat min,
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struct amount_msat max,
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struct amount_msat htlcmin,
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struct amount_msat htlcmax,
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struct amount_msat spendable,
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struct amount_msat fee_base,
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u32 fee_proportional,
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u32 cltv_delta,
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bool enabled,
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bool is_local,
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const char *buf_,
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const jsmntok_t *chantok,
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void *cbarg_),
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@ -51,9 +53,11 @@ struct gossmap_localmods *gossmods_from_listpeerchannels_(const tal_t *ctx,
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struct amount_msat, \
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struct amount_msat, \
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struct amount_msat, \
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struct amount_msat, \
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u32, \
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u32, \
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bool, \
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bool, \
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const char *, \
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const jsmntok_t *), \
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(cbarg))
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@ -63,12 +67,14 @@ void gossmod_add_localchan(struct gossmap_localmods *mods,
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const struct node_id *self,
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const struct node_id *peer,
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const struct short_channel_id_dir *scidd,
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struct amount_msat min,
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struct amount_msat max,
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struct amount_msat htlcmin,
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struct amount_msat htlcmax,
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struct amount_msat spendable,
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struct amount_msat fee_base,
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u32 fee_proportional,
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u32 cltv_delta,
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bool enabled,
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bool is_local,
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const char *buf UNUSED,
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const jsmntok_t *chantok UNUSED,
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void *cbarg UNUSED);
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@ -458,19 +458,39 @@ static void gossmod_cb(struct gossmap_localmods *mods,
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const struct node_id *self,
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const struct node_id *peer,
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const struct short_channel_id_dir *scidd,
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struct amount_msat min,
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struct amount_msat max,
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struct amount_msat htlcmin,
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struct amount_msat htlcmax,
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struct amount_msat spendable,
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struct amount_msat fee_base,
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u32 fee_proportional,
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u32 cltv_delta,
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bool enabled,
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bool is_local,
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const char *buf,
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const jsmntok_t *chantok,
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struct payment *payment)
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{
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/* Add to gossmap like normal */
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gossmod_add_localchan(mods, self, peer, scidd, min, max,
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fee_base, fee_proportional, cltv_delta, enabled, buf, chantok, NULL);
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struct amount_msat min, max;
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if (is_local) {
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/* local channels can send up to what's spendable */
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min = AMOUNT_MSAT(0);
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max = spendable;
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} else {
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/* remote channels can send up no more than spendable */
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min = htlcmin;
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max = amount_msat_min(spendable, htlcmax);
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}
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/* FIXME: features? */
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gossmap_local_addchan(mods, self, peer, &scidd->scid, NULL);
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gossmap_local_updatechan(mods, &scidd->scid, min, max,
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fee_base.millisatoshis, /* Raw: gossmap */
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fee_proportional,
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cltv_delta,
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enabled,
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scidd->dir);
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/* Also update uncertainty map */
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uncertainty_network_update_from_listpeerchannels(payment, scidd, max, enabled,
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@ -42,12 +42,14 @@ void gossmod_add_localchan(struct gossmap_localmods *mods UNNEEDED,
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const struct node_id *self UNNEEDED,
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const struct node_id *peer UNNEEDED,
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const struct short_channel_id_dir *scidd UNNEEDED,
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struct amount_msat min UNNEEDED,
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struct amount_msat max UNNEEDED,
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struct amount_msat htlcmin UNNEEDED,
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struct amount_msat htlcmax UNNEEDED,
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struct amount_msat spendable UNNEEDED,
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struct amount_msat fee_base UNNEEDED,
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u32 fee_proportional UNNEEDED,
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u32 cltv_delta UNNEEDED,
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bool enabled UNNEEDED,
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bool is_local UNNEEDED,
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const char *buf UNUSED UNNEEDED,
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const jsmntok_t *chantok UNUSED UNNEEDED,
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void *cbarg UNUSED UNNEEDED)
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@ -62,12 +64,14 @@ struct gossmap_localmods *gossmods_from_listpeerchannels_(const tal_t *ctx UNNEE
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const struct node_id *self_ UNNEEDED,
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const struct node_id *peer UNNEEDED,
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const struct short_channel_id_dir *scidd UNNEEDED,
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struct amount_msat min UNNEEDED,
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struct amount_msat max UNNEEDED,
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struct amount_msat htlcmin UNNEEDED,
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struct amount_msat htlcmax UNNEEDED,
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struct amount_msat spendable UNNEEDED,
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struct amount_msat fee_base UNNEEDED,
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u32 fee_proportional UNNEEDED,
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u32 cltv_delta UNNEEDED,
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bool enabled UNNEEDED,
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bool is_local UNNEEDED,
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const char *buf_ UNNEEDED,
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const jsmntok_t *chantok UNNEEDED,
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void *cbarg_) UNNEEDED,
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@ -39,12 +39,14 @@ void gossmod_add_localchan(struct gossmap_localmods *mods UNNEEDED,
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const struct node_id *self UNNEEDED,
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const struct node_id *peer UNNEEDED,
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const struct short_channel_id_dir *scidd UNNEEDED,
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struct amount_msat min UNNEEDED,
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struct amount_msat max UNNEEDED,
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struct amount_msat htlcmin UNNEEDED,
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struct amount_msat htlcmax UNNEEDED,
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struct amount_msat spendable UNNEEDED,
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struct amount_msat fee_base UNNEEDED,
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u32 fee_proportional UNNEEDED,
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u32 cltv_delta UNNEEDED,
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bool enabled UNNEEDED,
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bool is_local UNNEEDED,
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const char *buf UNUSED UNNEEDED,
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const jsmntok_t *chantok UNUSED UNNEEDED,
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void *cbarg UNUSED UNNEEDED)
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@ -59,12 +61,14 @@ struct gossmap_localmods *gossmods_from_listpeerchannels_(const tal_t *ctx UNNEE
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const struct node_id *self_ UNNEEDED,
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const struct node_id *peer UNNEEDED,
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const struct short_channel_id_dir *scidd UNNEEDED,
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struct amount_msat min UNNEEDED,
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struct amount_msat max UNNEEDED,
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struct amount_msat htlcmin UNNEEDED,
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struct amount_msat htlcmax UNNEEDED,
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struct amount_msat spendable UNNEEDED,
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struct amount_msat fee_base UNNEEDED,
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u32 fee_proportional UNNEEDED,
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u32 cltv_delta UNNEEDED,
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bool enabled UNNEEDED,
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bool is_local UNNEEDED,
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const char *buf_ UNNEEDED,
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const jsmntok_t *chantok UNNEEDED,
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void *cbarg_) UNNEEDED,
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@ -364,10 +364,12 @@ static void gossmod_add_unknown_localchan(struct gossmap_localmods *mods,
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const struct short_channel_id_dir *scidd,
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struct amount_msat min,
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struct amount_msat max,
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struct amount_msat spendable,
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struct amount_msat fee_base,
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u32 fee_proportional,
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u32 cltv_delta,
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bool enabled,
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bool is_local,
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const char *buf UNUSED,
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const jsmntok_t *chantok UNUSED,
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struct gossmap *gossmap)
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@ -375,9 +377,9 @@ static void gossmod_add_unknown_localchan(struct gossmap_localmods *mods,
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if (gossmap_find_chan(gossmap, &scidd->scid))
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return;
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gossmod_add_localchan(mods, self, peer, scidd, min, max,
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gossmod_add_localchan(mods, self, peer, scidd, min, max, spendable,
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fee_base, fee_proportional, cltv_delta, enabled,
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buf, chantok, gossmap);
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is_local, buf, chantok, gossmap);
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}
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/* FIXME: We don't need this listpeerchannels at all if not deprecated! */
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@ -624,3 +624,14 @@ def test_fees(node_factory):
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source.rpc.call("renepay", {"invstring": invstr})
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invoice = only_one(dest.rpc.listinvoices("inv2")["invoices"])
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assert invoice["amount_received_msat"] == Millisatoshi("150000sat")
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def test_local_htlcmax0(node_factory):
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"""Testing a simple pay route when local channels have htlcmax=0."""
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l1, l2, l3 = node_factory.line_graph(3, wait_for_announce=True)
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l1.rpc.setchannel(l2.info["id"], htlcmax=0)
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inv = l3.rpc.invoice(123000, "test_renepay", "description")["bolt11"]
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details = l1.rpc.call("renepay", {"invstring": inv})
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assert details["status"] == "complete"
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assert details["amount_msat"] == Millisatoshi(123000)
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assert details["destination"] == l3.info["id"]
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