169 lines
3.2 KiB
C
169 lines
3.2 KiB
C
#include "config.h"
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#include "wire.h"
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#include <assert.h>
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#include <ccan/crypto/siphash24/siphash24.h>
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#include <ccan/endian/endian.h>
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#include <ccan/mem/mem.h>
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#include <channeld/inflight.h>
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#include <common/utils.h>
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void towire(u8 **pptr, const void *data, size_t len)
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{
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size_t oldsize = tal_count(*pptr);
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tal_resize(pptr, oldsize + len);
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/* The C standards committee has a lot to answer for :( */
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if (len)
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memcpy(*pptr + oldsize, memcheck(data, len), len);
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}
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void towire_u8(u8 **pptr, u8 v)
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{
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towire(pptr, &v, sizeof(v));
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}
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void towire_u16(u8 **pptr, u16 v)
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{
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be16 l = cpu_to_be16(v);
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towire(pptr, &l, sizeof(l));
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}
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void towire_u32(u8 **pptr, u32 v)
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{
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be32 l = cpu_to_be32(v);
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towire(pptr, &l, sizeof(l));
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}
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void towire_u64(u8 **pptr, u64 v)
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{
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be64 l = cpu_to_be64(v);
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towire(pptr, &l, sizeof(l));
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}
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void towire_s8(u8 **pptr, s8 v)
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{
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towire_u8(pptr, (u8)v);
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}
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void towire_s32(u8 **pptr, s32 v)
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{
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towire_u32(pptr, (u32)v);
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}
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void towire_s16(u8 **pptr, s16 v)
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{
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towire_u16(pptr, (u16)v);
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}
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void towire_s64(u8 **pptr, s64 v)
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{
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towire_u64(pptr, (u64)v);
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}
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static void towire_tlv_uint(u8 **pptr, u64 v)
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{
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u8 bytes[8];
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size_t num_zeroes;
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be64 val;
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val = cpu_to_be64(v);
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BUILD_ASSERT(sizeof(val) == sizeof(bytes));
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memcpy(bytes, &val, sizeof(bytes));
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for (num_zeroes = 0; num_zeroes < sizeof(bytes); num_zeroes++)
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if (bytes[num_zeroes] != 0)
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break;
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towire(pptr, bytes + num_zeroes, sizeof(bytes) - num_zeroes);
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}
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void towire_tu16(u8 **pptr, u16 v)
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{
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return towire_tlv_uint(pptr, v);
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}
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void towire_tu32(u8 **pptr, u32 v)
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{
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return towire_tlv_uint(pptr, v);
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}
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void towire_tu64(u8 **pptr, u64 v)
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{
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return towire_tlv_uint(pptr, v);
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}
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void towire_bool(u8 **pptr, bool v)
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{
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u8 val = v;
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towire(pptr, &val, sizeof(val));
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}
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void towire_jsonrpc_errcode(u8 **pptr, enum jsonrpc_errcode v)
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{
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towire_u32(pptr, (u32)v);
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}
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void towire_secp256k1_ecdsa_signature(u8 **pptr,
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const secp256k1_ecdsa_signature *sig)
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{
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u8 compact[64];
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secp256k1_ecdsa_signature_serialize_compact(secp256k1_ctx,
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compact, sig);
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towire(pptr, compact, sizeof(compact));
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}
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void towire_secp256k1_ecdsa_recoverable_signature(u8 **pptr,
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const secp256k1_ecdsa_recoverable_signature *rsig)
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{
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u8 compact[64];
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int recid;
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secp256k1_ecdsa_recoverable_signature_serialize_compact(secp256k1_ctx,
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compact,
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&recid,
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rsig);
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towire(pptr, compact, sizeof(compact));
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towire_u8(pptr, recid);
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}
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void towire_sha256(u8 **pptr, const struct sha256 *sha256)
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{
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towire(pptr, sha256, sizeof(*sha256));
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}
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void towire_ripemd160(u8 **pptr, const struct ripemd160 *ripemd)
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{
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towire(pptr, ripemd, sizeof(*ripemd));
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}
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void towire_u8_array(u8 **pptr, const u8 *arr, size_t num)
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{
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towire(pptr, arr, num);
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}
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void towire_utf8_array(u8 **pptr, const char *arr, size_t num)
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{
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assert(utf8_check(arr, num));
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towire(pptr, arr, num);
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}
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void towire_pad(u8 **pptr, size_t num)
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{
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/* Simply insert zeros. */
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size_t oldsize = tal_count(*pptr);
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tal_resize(pptr, oldsize + num);
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memset(*pptr + oldsize, 0, num);
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}
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void towire_wirestring(u8 **pptr, const char *str)
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{
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towire(pptr, str, strlen(str) + 1);
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}
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void towire_siphash_seed(u8 **pptr, const struct siphash_seed *seed)
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{
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towire(pptr, seed, sizeof(*seed));
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}
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