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99 lines
3.8 KiB
99 lines
3.8 KiB
#ifndef LIGHTNING_WIRE_WIRE_H
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#define LIGHTNING_WIRE_WIRE_H
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#include "config.h"
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#include <bitcoin/privkey.h>
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#include <bitcoin/pubkey.h>
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#include <bitcoin/shadouble.h>
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#include <bitcoin/signature.h>
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#include <ccan/crypto/sha256/sha256.h>
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#include <ccan/short_types/short_types.h>
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#include <stdlib.h>
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/* Short Channel ID is composed of 3 bytes for the block height, 3
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* bytes of tx index in block and 2 bytes of output index. The
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* bitfield is mainly for unit tests where it is nice to be able to
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* just memset them and not have to take care about the extra byte for
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* u32 */
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struct short_channel_id {
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u32 blocknum : 24;
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u32 txnum : 24;
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u16 outnum;
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};
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struct channel_id {
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u8 id[32];
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};
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/* Address types as defined in the lightning specification. Does not
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* match AF_INET and AF_INET6 so we just define our
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* own. ADDR_TYPE_PADDING is also used to signal in the config whether
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* an address is defined at all. */
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enum wire_addr_type {
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ADDR_TYPE_PADDING = 0,
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ADDR_TYPE_IPV4 = 1,
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ADDR_TYPE_IPV6 = 2,
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};
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/* FIXME(cdecker) Extend this once we have defined how TOR addresses
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* should look like */
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struct ipaddr {
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enum wire_addr_type type;
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u8 addrlen;
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u8 addr[16];
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u16 port;
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};
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struct preimage;
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void derive_channel_id(struct channel_id *channel_id,
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struct sha256_double *txid, u16 txout);
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/* Read the type; returns -1 if not long enough. cursor is a tal ptr. */
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int fromwire_peektype(const u8 *cursor);
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const void *fromwire_fail(const u8 **cursor, size_t *max);
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void towire(u8 **pptr, const void *data, size_t len);
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void towire_pubkey(u8 **pptr, const struct pubkey *pubkey);
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void towire_privkey(u8 **pptr, const struct privkey *privkey);
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void towire_secret(u8 **pptr, const struct secret *secret);
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void towire_secp256k1_ecdsa_signature(u8 **pptr,
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const secp256k1_ecdsa_signature *signature);
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void towire_channel_id(u8 **pptr, const struct channel_id *channel_id);
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void towire_short_channel_id(u8 **pptr,
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const struct short_channel_id *short_channel_id);
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void towire_sha256(u8 **pptr, const struct sha256 *sha256);
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void towire_sha256_double(u8 **pptr, const struct sha256_double *sha256d);
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void towire_preimage(u8 **pptr, const struct preimage *preimage);
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void towire_ipaddr(u8 **pptr, const struct ipaddr *addr);
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void towire_u8(u8 **pptr, u8 v);
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void towire_u16(u8 **pptr, u16 v);
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void towire_u32(u8 **pptr, u32 v);
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void towire_u64(u8 **pptr, u64 v);
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void towire_pad(u8 **pptr, size_t num);
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void towire_bool(u8 **pptr, bool v);
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void towire_u8_array(u8 **pptr, const u8 *arr, size_t num);
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const u8 *fromwire(const u8 **cursor, size_t *max, void *copy, size_t n);
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u8 fromwire_u8(const u8 **cursor, size_t *max);
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u16 fromwire_u16(const u8 **cursor, size_t *max);
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u32 fromwire_u32(const u8 **cursor, size_t *max);
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u64 fromwire_u64(const u8 **cursor, size_t *max);
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bool fromwire_bool(const u8 **cursor, size_t *max);
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void fromwire_secret(const u8 **cursor, size_t *max, struct secret *secret);
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void fromwire_privkey(const u8 **cursor, size_t *max, struct privkey *privkey);
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void fromwire_pubkey(const u8 **cursor, size_t *max, struct pubkey *pubkey);
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void fromwire_secp256k1_ecdsa_signature(const u8 **cursor, size_t *max,
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secp256k1_ecdsa_signature *signature);
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void fromwire_channel_id(const u8 **cursor, size_t *max,
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struct channel_id *channel_id);
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void fromwire_short_channel_id(const u8 **cursor, size_t *max,
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struct short_channel_id *short_channel_id);
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void fromwire_sha256(const u8 **cursor, size_t *max, struct sha256 *sha256);
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void fromwire_sha256_double(const u8 **cursor, size_t *max,
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struct sha256_double *sha256d);
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void fromwire_preimage(const u8 **cursor, size_t *max, struct preimage *preimage);
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void fromwire_ipaddr(const u8 **cursor, size_t *max, struct ipaddr *addr);
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void fromwire_pad(const u8 **cursor, size_t *max, size_t num);
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void fromwire_u8_array(const u8 **cursor, size_t *max, u8 *arr, size_t num);
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#endif /* LIGHTNING_WIRE_WIRE_H */
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