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sphinx: update padding as per latest BOLT 4

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BOLT 04: increase max size of onion payload messages (#227)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2017-08-22 13:16:13 +09:30
committed by Christian Decker
parent fea412dd94
commit 1ecd687eec
1 changed files with 2 additions and 2 deletions
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4
lightningd/sphinx.c
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@@ -20,7 +20,7 @@
#define NUM_STREAM_BYTES ((NUM_MAX_HOPS + 1) * HOP_DATA_SIZE) #define NUM_STREAM_BYTES ((NUM_MAX_HOPS + 1) * HOP_DATA_SIZE)
#define KEY_LEN 32 #define KEY_LEN 32
#define ONION_REPLY_SIZE 128 #define ONION_REPLY_SIZE 256
struct hop_params { struct hop_params {
u8 secret[SHARED_SECRET_SIZE]; u8 secret[SHARED_SECRET_SIZE];
@@ -479,7 +479,7 @@ u8 *create_onionreply(const tal_t *ctx, const struct secret *shared_secret,
/* BOLT #4: /* BOLT #4:
* *
* The node SHOULD set `pad` such that the `failure_len` plus * The node SHOULD set `pad` such that the `failure_len` plus
* `pad_len` is equal to 128. This is 28 bytes longer than then the * `pad_len` is equal to 256. This is 118 bytes longer than then the
* longest currently-defined message. * longest currently-defined message.
*/ */
assert(tal_len(payload) == ONION_REPLY_SIZE + 4); assert(tal_len(payload) == ONION_REPLY_SIZE + 4);