From 3eecbaee4da4c3a798b0700ab81d1435176205e4 Mon Sep 17 00:00:00 2001
From: niftynei <niftynei@gmail.com>
Date: Tue, 10 Jan 2023 14:57:17 -0600
Subject: [PATCH] tx_roles: allow to be serialized btw processes

We're going to use this in a bit to pass role type btw
dualopend/lightningd
---
 common/Makefile             |  4 ++--
 common/tx_roles.c           | 18 ++++++++++++++++++
 common/tx_roles.h           |  5 +++++
 lightningd/Makefile         |  1 +
 openingd/Makefile           |  1 +
 openingd/dualopend_wire.csv |  1 +
 6 files changed, 28 insertions(+), 2 deletions(-)
 create mode 100644 common/tx_roles.c

diff --git a/common/Makefile b/common/Makefile
index 273bd153c..8b63eb3ca 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -87,6 +87,7 @@ COMMON_SRC_NOGEN :=				\
 	common/status_wire.c			\
 	common/subdaemon.c			\
 	common/timeout.c			\
+	common/tx_roles.c			\
 	common/type_to_string.c			\
 	common/utils.c				\
 	common/utxo.c				\
@@ -108,8 +109,7 @@ COMMON_HEADERS_NOGEN := $(COMMON_SRC_NOGEN:.c=.h)	\
 	common/htlc.h					\
 	common/json_command.h				\
 	common/jsonrpc_errors.h				\
-	common/overflows.h				\
-	common/tx_roles.h
+	common/overflows.h
 
 COMMON_HEADERS_GEN := common/htlc_state_names_gen.h common/status_wiregen.h common/peer_status_wiregen.h common/scb_wiregen.h
 
diff --git a/common/tx_roles.c b/common/tx_roles.c
new file mode 100644
index 000000000..541deb7b0
--- /dev/null
+++ b/common/tx_roles.c
@@ -0,0 +1,18 @@
+#include "config.h"
+#include <common/tx_roles.h>
+#include <wire/wire.h>
+
+void towire_tx_role(u8 **pptr, const enum tx_role tx_role)
+{
+	towire_u8(pptr, tx_role);
+}
+
+enum tx_role fromwire_tx_role(const u8 **cursor, size_t *max)
+{
+	u8 tx_role = fromwire_u8(cursor, max);
+	if (tx_role >= NUM_TX_ROLES) {
+		tx_role = TX_INITIATOR;
+		fromwire_fail(cursor, max);
+	}
+	return tx_role;
+}
diff --git a/common/tx_roles.h b/common/tx_roles.h
index 5a65dbc10..9b7b5bbb9 100644
--- a/common/tx_roles.h
+++ b/common/tx_roles.h
@@ -2,6 +2,8 @@
 #define LIGHTNING_COMMON_TX_ROLES_H
 
 #include "config.h"
+#include <ccan/short_types/short_types.h>
+#include <stddef.h>
 
 #define NUM_TX_ROLES (TX_ACCEPTER + 1)
 enum tx_role {
@@ -9,4 +11,7 @@ enum tx_role {
 	TX_ACCEPTER,
 };
 
+
+void towire_tx_role(u8 **pptr, const enum tx_role tx_role);
+enum tx_role fromwire_tx_role(const u8 **cursor, size_t *max);
 #endif /* LIGHTNING_COMMON_TX_ROLES_H */
diff --git a/lightningd/Makefile b/lightningd/Makefile
index 0e2418be1..11dbaaf7a 100644
--- a/lightningd/Makefile
+++ b/lightningd/Makefile
@@ -126,6 +126,7 @@ LIGHTNINGD_COMMON_OBJS :=			\
 	common/sphinx.o				\
 	common/status_wire.o			\
 	common/timeout.o			\
+	common/tx_roles.o			\
 	common/type_to_string.o			\
 	common/utils.o				\
 	common/utxo.o				\
diff --git a/openingd/Makefile b/openingd/Makefile
index 1da236ac3..100525c2e 100644
--- a/openingd/Makefile
+++ b/openingd/Makefile
@@ -77,6 +77,7 @@ OPENINGD_COMMON_OBJS :=				\
 	common/status_wire.o			\
 	common/status_wiregen.o			\
 	common/subdaemon.o			\
+	common/tx_roles.o			\
 	common/type_to_string.o			\
 	common/utils.o				\
 	common/utxo.o				\
diff --git a/openingd/dualopend_wire.csv b/openingd/dualopend_wire.csv
index c5050b3c8..c9bffc2fd 100644
--- a/openingd/dualopend_wire.csv
+++ b/openingd/dualopend_wire.csv
@@ -9,6 +9,7 @@
 #include <common/fee_states.h>
 #include <common/htlc_wire.h>
 #include <common/penalty_base.h>
+#include <common/tx_roles.h>
 #include <secp256k1.h>
 #include <wire/peer_wire.h>