From bbfa8c18c8ae086b6fd941e950c466f25c134c17 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sun, 11 Sep 2011 12:31:50 +0200
Subject: move protocol flags to the handler, add a pointer to the handler in
 the proto state, add PROTO_FLAG_NODEV

---
 proto-shell.c  |  2 +-
 proto-static.c |  4 ++--
 proto.c        | 11 ++++++-----
 proto.h        |  7 +++++--
 4 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/proto-shell.c b/proto-shell.c
index 281debc..d014b43 100644
--- a/proto-shell.c
+++ b/proto-shell.c
@@ -111,7 +111,7 @@ proto_shell_attach(const struct proto_handler *h, struct interface *iface,
 
 	memcpy(state->config, attr, blob_pad_len(attr));
 	state->proto.free = proto_shell_free;
-	state->proto.handler = proto_shell_handler;
+	state->proto.cb = proto_shell_handler;
 	state->handler = container_of(h, struct proto_shell_handler, proto);
 
 	return &state->proto;
diff --git a/proto-static.c b/proto-static.c
index 3734f09..bbe304b 100644
--- a/proto-static.c
+++ b/proto-static.c
@@ -241,8 +241,7 @@ static_attach(const struct proto_handler *h, struct interface *iface,
 
 	memcpy(state->config, attr, blob_pad_len(attr));
 	state->proto.free = static_free;
-	state->proto.handler = static_handler;
-	state->proto.flags = PROTO_FLAG_IMMEDIATE;
+	state->proto.cb = static_handler;
 
 	return &state->proto;
 
@@ -253,6 +252,7 @@ error:
 
 static struct proto_handler static_proto = {
 	.name = "static",
+	.flags = PROTO_FLAG_IMMEDIATE,
 	.config_params = &static_attr_list,
 	.attach = static_attach,
 };
diff --git a/proto.c b/proto.c
index 278fb0c..d8f16b3 100644
--- a/proto.c
+++ b/proto.c
@@ -48,14 +48,14 @@ default_proto_attach(const struct proto_handler *h,
 
 	proto = calloc(1, sizeof(*proto));
 	proto->free = default_proto_free;
-	proto->flags = PROTO_FLAG_IMMEDIATE;
-	proto->handler = no_proto_handler;
+	proto->cb = no_proto_handler;
 
 	return proto;
 }
 
 static const struct proto_handler no_proto = {
 	.name = "none",
+	.flags = PROTO_FLAG_IMMEDIATE,
 	.attach = default_proto_attach,
 };
 
@@ -84,9 +84,10 @@ proto_init_interface(struct interface *iface, struct blob_attr *attr)
 
 	if (!state) {
 		state = no_proto.attach(&no_proto, iface, attr);
-		state->handler = invalid_proto_handler;
+		state->cb = invalid_proto_handler;
 	}
 
+	state->handler = proto;
 	interface_set_proto_state(iface, state);
 }
 
@@ -114,8 +115,8 @@ interface_proto_event(struct interface_proto_state *proto,
 	enum interface_event ev;
 	int ret;
 
-	ret = proto->handler(proto, cmd, force);
-	if (ret || !(proto->flags & PROTO_FLAG_IMMEDIATE))
+	ret = proto->cb(proto, cmd, force);
+	if (ret || !(proto->handler->flags & PROTO_FLAG_IMMEDIATE))
 		goto out;
 
 	switch(cmd) {
diff --git a/proto.h b/proto.h
index 273ec94..e066b43 100644
--- a/proto.h
+++ b/proto.h
@@ -17,17 +17,18 @@ enum interface_proto_cmd {
 
 enum {
 	PROTO_FLAG_IMMEDIATE = (1 << 0),
+	PROTO_FLAG_NODEV = (1 << 1),
 };
 
 struct interface_proto_state {
+	const struct proto_handler *handler;
 	struct interface *iface;
-	unsigned int flags;
 
 	/* filled in by the protocol user */
 	void (*proto_event)(struct interface_proto_state *, enum interface_proto_event ev);
 
 	/* filled in by the protocol handler */
-	int (*handler)(struct interface_proto_state *, enum interface_proto_cmd cmd, bool force);
+	int (*cb)(struct interface_proto_state *, enum interface_proto_cmd cmd, bool force);
 	void (*free)(struct interface_proto_state *);
 };
 
@@ -35,6 +36,8 @@ struct interface_proto_state {
 struct proto_handler {
 	struct avl_node avl;
 
+	unsigned int flags;
+
 	const char *name;
 	const struct config_param_list *config_params;
 
-- 
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