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leak-anchor-sigs: the horrible hack until we have normalized txs. 

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
ppa-0.6.1
Rusty Russell 10 years ago
parent
670670f138
commit
10133575b9
7 changed files with 118 additions and 58 deletions
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  1. 8
      Makefile
  2. 37
      leak-anchor-sigs.c
  3. 66
      lightning.pb-c.c
  4. 42
      lightning.pb-c.h
  5. 4
      lightning.proto
  6. 10
      pkt.c
  7. 9
      pkt.h

8
Makefile
View File

@ -3,13 +3,14 @@
# Needs to have oneof support: Ubuntu vivid's is too old :( # Needs to have oneof support: Ubuntu vivid's is too old :(
PROTOCC:=protoc-c PROTOCC:=protoc-c
PROGRAMS := open-channel open-anchor-sig PROGRAMS := open-channel open-anchor-sig leak-anchor-sigs
HELPER_OBJS := base58.o lightning.pb-c.o shadouble.o pkt.o bitcoin_script.o perturb.o signature.o bitcoin_tx.o bitcoin_address.o HELPER_OBJS := base58.o lightning.pb-c.o shadouble.o pkt.o bitcoin_script.o perturb.o signature.o bitcoin_tx.o bitcoin_address.o
CCAN_OBJS := ccan-crypto-sha256.o ccan-crypto-shachain.o ccan-err.o ccan-tal.o ccan-tal-str.o ccan-take.o ccan-list.o ccan-str.o ccan-opt-helpers.o ccan-opt.o ccan-opt-parse.o ccan-opt-usage.o ccan-read_write_all.o ccan-str-hex.o ccan-tal-grab_file.o ccan-noerr.o CCAN_OBJS := ccan-crypto-sha256.o ccan-crypto-shachain.o ccan-err.o ccan-tal.o ccan-tal-str.o ccan-take.o ccan-list.o ccan-str.o ccan-opt-helpers.o ccan-opt.o ccan-opt-parse.o ccan-opt-usage.o ccan-read_write_all.o ccan-str-hex.o ccan-tal-grab_file.o ccan-noerr.o
OPEN_CHANNEL_OBJS := open-channel.o OPEN_CHANNEL_OBJS := open-channel.o
OPEN_ANCHOR_SIG_OBJS := open-anchor-sig.o OPEN_ANCHOR_SIG_OBJS := open-anchor-sig.o
LEAK_ANCHOR_SIGS_OBJS := leak-anchor-sigs.o
HEADERS := $(wildcard *.h) HEADERS := $(wildcard *.h)
@ -28,12 +29,15 @@ $(OPEN_CHANNEL_OBJS): $(HEADERS)
open-anchor-sig: $(OPEN_ANCHOR_SIG_OBJS) $(HELPER_OBJS) $(CCAN_OBJS) open-anchor-sig: $(OPEN_ANCHOR_SIG_OBJS) $(HELPER_OBJS) $(CCAN_OBJS)
$(OPEN_ANCHOR_SIG_OBJS): $(HEADERS) $(OPEN_ANCHOR_SIG_OBJS): $(HEADERS)
leak-anchor-sigs: $(LEAK_ANCHOR_SIGS_OBJS) $(HELPER_OBJS) $(CCAN_OBJS)
$(LEAK_ANCHOR_SIGS_OBJS): $(HEADERS)
distclean: clean distclean: clean
$(RM) lightning.pb-c.c lightning.pb-c.h $(RM) lightning.pb-c.c lightning.pb-c.h
clean: clean:
$(RM) $(PROGRAMS) $(RM) $(PROGRAMS)
$(RM) $(OPEN_CHANNEL_OBJS) $(OPEN_ANCHOR_SIG_OBJS) $(HELPER_OBJS) $(CCAN_OBJS) $(RM) $(OPEN_CHANNEL_OBJS) $(OPEN_ANCHOR_SIG_OBJS) $(LEAK_ANCHOR_SIGS_OBJS) $(HELPER_OBJS) $(CCAN_OBJS)
ccan-tal.o: $(CCANDIR)/ccan/tal/tal.c ccan-tal.o: $(CCANDIR)/ccan/tal/tal.c
$(CC) $(CFLAGS) -c -o $@ $< $(CC) $(CFLAGS) -c -o $@ $<

37
leak-anchor-sigs.c
View File

@ -0,0 +1,37 @@
/* Insecure hack to leak signatures early, to make up for non-normalized txs */
#include <ccan/err/err.h>
#include <ccan/opt/opt.h>
#include <ccan/read_write_all/read_write_all.h>
#include "lightning.pb-c.h"
#include "pkt.h"
#include <unistd.h>
int main(int argc, char *argv[])
{
const tal_t *ctx = tal_arr(NULL, char, 0);
OpenAnchorSig *s;
struct pkt *pkt;
err_set_progname(argv[0]);
opt_register_noarg("--help|-h", opt_usage_and_exit,
"<open-anchor-sig-file>\n"
"Create LeakAnchorSigsAndPretendWeDidnt to stdout",
"Print this message.");
opt_parse(&argc, argv, opt_log_stderr_exit);
if (argc != 2)
opt_usage_and_exit(NULL);
s = pkt_from_file(argv[1], PKT__PKT_OPEN_ANCHOR_SIG)->open_anchor_sig;
pkt = leak_anchor_sigs_and_pretend_we_didnt_pkt(ctx, s);
if (!write_all(STDOUT_FILENO, pkt,
sizeof(pkt->len) + le32_to_cpu(pkt->len)))
err(1, "Writing out packet");
tal_free(ctx);
return 0;
}

66
lightning.pb-c.c
View File

@ -394,47 +394,47 @@ void open_anchor_sig__free_unpacked
assert(message->base.descriptor == &open_anchor_sig__descriptor); assert(message->base.descriptor == &open_anchor_sig__descriptor);
protobuf_c_message_free_unpacked ((ProtobufCMessage*)message, allocator); protobuf_c_message_free_unpacked ((ProtobufCMessage*)message, allocator);
} }
void give_early_anchor_sig_and_pretend_we_didnt__init void leak_anchor_sigs_and_pretend_we_didnt__init
(GiveEarlyAnchorSigAndPretendWeDidnt *message) (LeakAnchorSigsAndPretendWeDidnt *message)
{ {
static GiveEarlyAnchorSigAndPretendWeDidnt init_value = GIVE_EARLY_ANCHOR_SIG_AND_PRETEND_WE_DIDNT__INIT; static LeakAnchorSigsAndPretendWeDidnt init_value = LEAK_ANCHOR_SIGS_AND_PRETEND_WE_DIDNT__INIT;
*message = init_value; *message = init_value;
} }
size_t give_early_anchor_sig_and_pretend_we_didnt__get_packed_size size_t leak_anchor_sigs_and_pretend_we_didnt__get_packed_size
(const GiveEarlyAnchorSigAndPretendWeDidnt *message) (const LeakAnchorSigsAndPretendWeDidnt *message)
{ {
assert(message->base.descriptor == &give_early_anchor_sig_and_pretend_we_didnt__descriptor); assert(message->base.descriptor == &leak_anchor_sigs_and_pretend_we_didnt__descriptor);
return protobuf_c_message_get_packed_size ((const ProtobufCMessage*)(message)); return protobuf_c_message_get_packed_size ((const ProtobufCMessage*)(message));
} }
size_t give_early_anchor_sig_and_pretend_we_didnt__pack size_t leak_anchor_sigs_and_pretend_we_didnt__pack
(const GiveEarlyAnchorSigAndPretendWeDidnt *message, (const LeakAnchorSigsAndPretendWeDidnt *message,
uint8_t *out) uint8_t *out)
{ {
assert(message->base.descriptor == &give_early_anchor_sig_and_pretend_we_didnt__descriptor); assert(message->base.descriptor == &leak_anchor_sigs_and_pretend_we_didnt__descriptor);
return protobuf_c_message_pack ((const ProtobufCMessage*)message, out); return protobuf_c_message_pack ((const ProtobufCMessage*)message, out);
} }
size_t give_early_anchor_sig_and_pretend_we_didnt__pack_to_buffer size_t leak_anchor_sigs_and_pretend_we_didnt__pack_to_buffer
(const GiveEarlyAnchorSigAndPretendWeDidnt *message, (const LeakAnchorSigsAndPretendWeDidnt *message,
ProtobufCBuffer *buffer) ProtobufCBuffer *buffer)
{ {
assert(message->base.descriptor == &give_early_anchor_sig_and_pretend_we_didnt__descriptor); assert(message->base.descriptor == &leak_anchor_sigs_and_pretend_we_didnt__descriptor);
return protobuf_c_message_pack_to_buffer ((const ProtobufCMessage*)message, buffer); return protobuf_c_message_pack_to_buffer ((const ProtobufCMessage*)message, buffer);
} }
GiveEarlyAnchorSigAndPretendWeDidnt * LeakAnchorSigsAndPretendWeDidnt *
give_early_anchor_sig_and_pretend_we_didnt__unpack leak_anchor_sigs_and_pretend_we_didnt__unpack
(ProtobufCAllocator *allocator, (ProtobufCAllocator *allocator,
size_t len, size_t len,
const uint8_t *data) const uint8_t *data)
{ {
return (GiveEarlyAnchorSigAndPretendWeDidnt *) return (LeakAnchorSigsAndPretendWeDidnt *)
protobuf_c_message_unpack (&give_early_anchor_sig_and_pretend_we_didnt__descriptor, protobuf_c_message_unpack (&leak_anchor_sigs_and_pretend_we_didnt__descriptor,
allocator, len, data); allocator, len, data);
} }
void give_early_anchor_sig_and_pretend_we_didnt__free_unpacked void leak_anchor_sigs_and_pretend_we_didnt__free_unpacked
(GiveEarlyAnchorSigAndPretendWeDidnt *message, (LeakAnchorSigsAndPretendWeDidnt *message,
ProtobufCAllocator *allocator) ProtobufCAllocator *allocator)
{ {
assert(message->base.descriptor == &give_early_anchor_sig_and_pretend_we_didnt__descriptor); assert(message->base.descriptor == &leak_anchor_sigs_and_pretend_we_didnt__descriptor);
protobuf_c_message_free_unpacked ((ProtobufCMessage*)message, allocator); protobuf_c_message_free_unpacked ((ProtobufCMessage*)message, allocator);
} }
void open_complete__init void open_complete__init
@ -1588,7 +1588,7 @@ const ProtobufCMessageDescriptor open_anchor_sig__descriptor =
(ProtobufCMessageInit) open_anchor_sig__init, (ProtobufCMessageInit) open_anchor_sig__init,
NULL,NULL,NULL /* reserved[123] */ NULL,NULL,NULL /* reserved[123] */
}; };
static const ProtobufCFieldDescriptor give_early_anchor_sig_and_pretend_we_didnt__field_descriptors[1] = static const ProtobufCFieldDescriptor leak_anchor_sigs_and_pretend_we_didnt__field_descriptors[1] =
{ {
{ {
"anchor_scriptsigs", "anchor_scriptsigs",
@ -1596,34 +1596,34 @@ static const ProtobufCFieldDescriptor give_early_anchor_sig_and_pretend_we_didnt
PROTOBUF_C_LABEL_REQUIRED, PROTOBUF_C_LABEL_REQUIRED,
PROTOBUF_C_TYPE_MESSAGE, PROTOBUF_C_TYPE_MESSAGE,
0, /* quantifier_offset */ 0, /* quantifier_offset */
offsetof(GiveEarlyAnchorSigAndPretendWeDidnt, anchor_scriptsigs), offsetof(LeakAnchorSigsAndPretendWeDidnt, anchor_scriptsigs),
&open_anchor_sig__descriptor, &open_anchor_sig__descriptor,
NULL, NULL,
0, /* flags */ 0, /* flags */
0,NULL,NULL /* reserved1,reserved2, etc */ 0,NULL,NULL /* reserved1,reserved2, etc */
}, },
}; };
static const unsigned give_early_anchor_sig_and_pretend_we_didnt__field_indices_by_name[] = { static const unsigned leak_anchor_sigs_and_pretend_we_didnt__field_indices_by_name[] = {
0, /* field[0] = anchor_scriptsigs */ 0, /* field[0] = anchor_scriptsigs */
}; };
static const ProtobufCIntRange give_early_anchor_sig_and_pretend_we_didnt__number_ranges[1 + 1] = static const ProtobufCIntRange leak_anchor_sigs_and_pretend_we_didnt__number_ranges[1 + 1] =
{ {
{ 1, 0 }, { 1, 0 },
{ 0, 1 } { 0, 1 }
}; };
const ProtobufCMessageDescriptor give_early_anchor_sig_and_pretend_we_didnt__descriptor = const ProtobufCMessageDescriptor leak_anchor_sigs_and_pretend_we_didnt__descriptor =
{ {
PROTOBUF_C__MESSAGE_DESCRIPTOR_MAGIC, PROTOBUF_C__MESSAGE_DESCRIPTOR_MAGIC,
"give_early_anchor_sig_and_pretend_we_didnt", "leak_anchor_sigs_and_pretend_we_didnt",
"GiveEarlyAnchorSigAndPretendWeDidnt", "LeakAnchorSigsAndPretendWeDidnt",
"GiveEarlyAnchorSigAndPretendWeDidnt", "LeakAnchorSigsAndPretendWeDidnt",
"", "",
sizeof(GiveEarlyAnchorSigAndPretendWeDidnt), sizeof(LeakAnchorSigsAndPretendWeDidnt),
1, 1,
give_early_anchor_sig_and_pretend_we_didnt__field_descriptors, leak_anchor_sigs_and_pretend_we_didnt__field_descriptors,
give_early_anchor_sig_and_pretend_we_didnt__field_indices_by_name, leak_anchor_sigs_and_pretend_we_didnt__field_indices_by_name,
1, give_early_anchor_sig_and_pretend_we_didnt__number_ranges, 1, leak_anchor_sigs_and_pretend_we_didnt__number_ranges,
(ProtobufCMessageInit) give_early_anchor_sig_and_pretend_we_didnt__init, (ProtobufCMessageInit) leak_anchor_sigs_and_pretend_we_didnt__init,
NULL,NULL,NULL /* reserved[123] */ NULL,NULL,NULL /* reserved[123] */
}; };
static const ProtobufCFieldDescriptor open_complete__field_descriptors[1] = static const ProtobufCFieldDescriptor open_complete__field_descriptors[1] =
@ -2240,7 +2240,7 @@ static const ProtobufCFieldDescriptor pkt__field_descriptors[15] =
PROTOBUF_C_TYPE_MESSAGE, PROTOBUF_C_TYPE_MESSAGE,
offsetof(Pkt, pkt_case), offsetof(Pkt, pkt_case),
offsetof(Pkt, omg_fail), offsetof(Pkt, omg_fail),
&give_early_anchor_sig_and_pretend_we_didnt__descriptor, &leak_anchor_sigs_and_pretend_we_didnt__descriptor,
NULL, NULL,
0 | PROTOBUF_C_FIELD_FLAG_ONEOF, /* flags */ 0 | PROTOBUF_C_FIELD_FLAG_ONEOF, /* flags */
0,NULL,NULL /* reserved1,reserved2, etc */ 0,NULL,NULL /* reserved1,reserved2, etc */

42
lightning.pb-c.h
View File

@ -24,7 +24,7 @@ typedef struct _Anchor Anchor;
typedef struct _OpenChannel OpenChannel; typedef struct _OpenChannel OpenChannel;
typedef struct _OpenCommitSig OpenCommitSig; typedef struct _OpenCommitSig OpenCommitSig;
typedef struct _OpenAnchorSig OpenAnchorSig; typedef struct _OpenAnchorSig OpenAnchorSig;
typedef struct _GiveEarlyAnchorSigAndPretendWeDidnt GiveEarlyAnchorSigAndPretendWeDidnt; typedef struct _LeakAnchorSigsAndPretendWeDidnt LeakAnchorSigsAndPretendWeDidnt;
typedef struct _OpenComplete OpenComplete; typedef struct _OpenComplete OpenComplete;
typedef struct _Update Update; typedef struct _Update Update;
typedef struct _UpdateAccept UpdateAccept; typedef struct _UpdateAccept UpdateAccept;
@ -252,13 +252,13 @@ struct _OpenAnchorSig
* malleability anyway). So for testing, we send the scriptsigs for the * malleability anyway). So for testing, we send the scriptsigs for the
* anchor transaction's inputs immediately. * anchor transaction's inputs immediately.
*/ */
struct _GiveEarlyAnchorSigAndPretendWeDidnt struct _LeakAnchorSigsAndPretendWeDidnt
{ {
ProtobufCMessage base; ProtobufCMessage base;
OpenAnchorSig *anchor_scriptsigs; OpenAnchorSig *anchor_scriptsigs;
}; };
#define GIVE_EARLY_ANCHOR_SIG_AND_PRETEND_WE_DIDNT__INIT \ #define LEAK_ANCHOR_SIGS_AND_PRETEND_WE_DIDNT__INIT \
{ PROTOBUF_C_MESSAGE_INIT (&give_early_anchor_sig_and_pretend_we_didnt__descriptor) \ { PROTOBUF_C_MESSAGE_INIT (&leak_anchor_sigs_and_pretend_we_didnt__descriptor) \
, NULL } , NULL }
@ -500,7 +500,7 @@ struct _Pkt
* Opening * Opening
*/ */
OpenChannel *open; OpenChannel *open;
GiveEarlyAnchorSigAndPretendWeDidnt *omg_fail; LeakAnchorSigsAndPretendWeDidnt *omg_fail;
OpenCommitSig *open_commit_sig; OpenCommitSig *open_commit_sig;
OpenAnchorSig *open_anchor_sig; OpenAnchorSig *open_anchor_sig;
OpenComplete *open_complete; OpenComplete *open_complete;
@ -704,24 +704,24 @@ OpenAnchorSig *
void open_anchor_sig__free_unpacked void open_anchor_sig__free_unpacked
(OpenAnchorSig *message, (OpenAnchorSig *message,
ProtobufCAllocator *allocator); ProtobufCAllocator *allocator);
/* GiveEarlyAnchorSigAndPretendWeDidnt methods */ /* LeakAnchorSigsAndPretendWeDidnt methods */
void give_early_anchor_sig_and_pretend_we_didnt__init void leak_anchor_sigs_and_pretend_we_didnt__init
(GiveEarlyAnchorSigAndPretendWeDidnt *message); (LeakAnchorSigsAndPretendWeDidnt *message);
size_t give_early_anchor_sig_and_pretend_we_didnt__get_packed_size size_t leak_anchor_sigs_and_pretend_we_didnt__get_packed_size
(const GiveEarlyAnchorSigAndPretendWeDidnt *message); (const LeakAnchorSigsAndPretendWeDidnt *message);
size_t give_early_anchor_sig_and_pretend_we_didnt__pack size_t leak_anchor_sigs_and_pretend_we_didnt__pack
(const GiveEarlyAnchorSigAndPretendWeDidnt *message, (const LeakAnchorSigsAndPretendWeDidnt *message,
uint8_t *out); uint8_t *out);
size_t give_early_anchor_sig_and_pretend_we_didnt__pack_to_buffer size_t leak_anchor_sigs_and_pretend_we_didnt__pack_to_buffer
(const GiveEarlyAnchorSigAndPretendWeDidnt *message, (const LeakAnchorSigsAndPretendWeDidnt *message,
ProtobufCBuffer *buffer); ProtobufCBuffer *buffer);
GiveEarlyAnchorSigAndPretendWeDidnt * LeakAnchorSigsAndPretendWeDidnt *
give_early_anchor_sig_and_pretend_we_didnt__unpack leak_anchor_sigs_and_pretend_we_didnt__unpack
(ProtobufCAllocator *allocator, (ProtobufCAllocator *allocator,
size_t len, size_t len,
const uint8_t *data); const uint8_t *data);
void give_early_anchor_sig_and_pretend_we_didnt__free_unpacked void leak_anchor_sigs_and_pretend_we_didnt__free_unpacked
(GiveEarlyAnchorSigAndPretendWeDidnt *message, (LeakAnchorSigsAndPretendWeDidnt *message,
ProtobufCAllocator *allocator); ProtobufCAllocator *allocator);
/* OpenComplete methods */ /* OpenComplete methods */
void open_complete__init void open_complete__init
@ -999,8 +999,8 @@ typedef void (*OpenCommitSig_Closure)
typedef void (*OpenAnchorSig_Closure) typedef void (*OpenAnchorSig_Closure)
(const OpenAnchorSig *message, (const OpenAnchorSig *message,
void *closure_data); void *closure_data);
typedef void (*GiveEarlyAnchorSigAndPretendWeDidnt_Closure) typedef void (*LeakAnchorSigsAndPretendWeDidnt_Closure)
(const GiveEarlyAnchorSigAndPretendWeDidnt *message, (const LeakAnchorSigsAndPretendWeDidnt *message,
void *closure_data); void *closure_data);
typedef void (*OpenComplete_Closure) typedef void (*OpenComplete_Closure)
(const OpenComplete *message, (const OpenComplete *message,
@ -1056,7 +1056,7 @@ extern const ProtobufCMessageDescriptor anchor__descriptor;
extern const ProtobufCMessageDescriptor open_channel__descriptor; extern const ProtobufCMessageDescriptor open_channel__descriptor;
extern const ProtobufCMessageDescriptor open_commit_sig__descriptor; extern const ProtobufCMessageDescriptor open_commit_sig__descriptor;
extern const ProtobufCMessageDescriptor open_anchor_sig__descriptor; extern const ProtobufCMessageDescriptor open_anchor_sig__descriptor;
extern const ProtobufCMessageDescriptor give_early_anchor_sig_and_pretend_we_didnt__descriptor; extern const ProtobufCMessageDescriptor leak_anchor_sigs_and_pretend_we_didnt__descriptor;
extern const ProtobufCMessageDescriptor open_complete__descriptor; extern const ProtobufCMessageDescriptor open_complete__descriptor;
extern const ProtobufCMessageDescriptor update__descriptor; extern const ProtobufCMessageDescriptor update__descriptor;
extern const ProtobufCMessageDescriptor update_accept__descriptor; extern const ProtobufCMessageDescriptor update_accept__descriptor;

4
lightning.proto
View File

@ -101,7 +101,7 @@ message open_anchor_sig {
// txid until it's signed by both sides, and then we'd have to worry about // txid until it's signed by both sides, and then we'd have to worry about
// malleability anyway). So for testing, we send the scriptsigs for the // malleability anyway). So for testing, we send the scriptsigs for the
// anchor transaction's inputs immediately. // anchor transaction's inputs immediately.
message give_early_anchor_sig_and_pretend_we_didnt { message leak_anchor_sigs_and_pretend_we_didnt {
required open_anchor_sig anchor_scriptsigs = 1; required open_anchor_sig anchor_scriptsigs = 1;
} }
@ -192,7 +192,7 @@ message pkt {
oneof pkt { oneof pkt {
// Opening // Opening
open_channel open = 201; open_channel open = 201;
give_early_anchor_sig_and_pretend_we_didnt omg_fail = 205; leak_anchor_sigs_and_pretend_we_didnt omg_fail = 205;
open_commit_sig open_commit_sig = 202; open_commit_sig open_commit_sig = 202;
open_anchor_sig open_anchor_sig = 203; open_anchor_sig open_anchor_sig = 203;
open_complete open_complete = 204; open_complete open_complete = 204;

10
pkt.c
View File

@ -131,3 +131,13 @@ struct pkt *open_anchor_sig_pkt(const tal_t *ctx, u8 **sigs, size_t num_sigs)
return to_pkt(ctx, PKT__PKT_OPEN_ANCHOR_SIG, &o); return to_pkt(ctx, PKT__PKT_OPEN_ANCHOR_SIG, &o);
} }
struct pkt *leak_anchor_sigs_and_pretend_we_didnt_pkt(const tal_t *ctx,
OpenAnchorSig *s)
{
LeakAnchorSigsAndPretendWeDidnt omg_fail
= LEAK_ANCHOR_SIGS_AND_PRETEND_WE_DIDNT__INIT;
omg_fail.anchor_scriptsigs = s;
return to_pkt(ctx, PKT__PKT_OMG_FAIL, &omg_fail);
}

9
pkt.h
View File

@ -49,6 +49,15 @@ struct pkt *openchannel_pkt(const tal_t *ctx,
*/ */
struct pkt *open_anchor_sig_pkt(const tal_t *ctx, u8 **sigs, size_t num_sigs); struct pkt *open_anchor_sig_pkt(const tal_t *ctx, u8 **sigs, size_t num_sigs);
/**
* leak_anchor_sigs_and_pretend_we_didnt_pkt - leak anchor scriptsigs
* @ctx: tal context to allocate off.
* @s: OpenAnchorSig.
*/
struct pkt *leak_anchor_sigs_and_pretend_we_didnt_pkt(const tal_t *ctx,
OpenAnchorSig *s);
/* Useful helper for allocating & populating a protobuf Sha256Hash */ /* Useful helper for allocating & populating a protobuf Sha256Hash */
Sha256Hash *sha256_to_proto(const tal_t *ctx, const struct sha256 *hash); Sha256Hash *sha256_to_proto(const tal_t *ctx, const struct sha256 *hash);
void proto_to_sha256(const Sha256Hash *pb, struct sha256 *hash); void proto_to_sha256(const Sha256Hash *pb, struct sha256 *hash);

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