From 52c36d741c05db2350ad1d240f6bd5d72237d8fd Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 14 Oct 2011 00:47:17 +0200
Subject: [PATCH] proto-shell: add dns search domains

---
 dummy/netifd-proto.sh |  7 +++++++
 interface-ip.c        | 32 ++++++++++++++++++++++++++++++++
 interface-ip.h        |  1 +
 proto-shell.c         |  5 +++++
 4 files changed, 45 insertions(+)

diff --git a/dummy/netifd-proto.sh b/dummy/netifd-proto.sh
index 0af99b2..0f703a2 100755
--- a/dummy/netifd-proto.sh
+++ b/dummy/netifd-proto.sh
@@ -59,6 +59,12 @@ proto_add_dns_server() {
 	jshn_append PROTO_DNS "$address"
 }
 
+proto_add_dns_search() {
+	local address="$1"
+
+	jshn_append PROTO_DNS_SEARCH "$address"
+}
+
 proto_add_ipv4_address() {
 	local address="$1"
 	local mask="$2"
@@ -133,6 +139,7 @@ proto_send_update() {
 	_proto_push_array "route" "$PROTO_ROUTE" _proto_push_route
 	_proto_push_array "route6" "$PROTO_ROUTE6" _proto_push_route
 	_proto_push_array "dns" "$PROTO_DNS" _proto_push_ip
+	_proto_push_array "dns_search" "$PROTO_DNS_SEARCH" _proto_push_ip
 	_proto_notify "$interface"
 }
 
diff --git a/interface-ip.c b/interface-ip.c
index 28c608a..a5efad5 100644
--- a/interface-ip.c
+++ b/interface-ip.c
@@ -119,6 +119,38 @@ interface_add_dns_server_list(struct interface *iface, struct blob_attr *list)
 	}
 }
 
+void
+interface_add_dns_search_domain(struct interface *iface, const char *str)
+{
+	struct dns_search_domain *s;
+	int len = strlen(str);
+
+	s = calloc(1, sizeof(*s) + len + 1);
+	if (!s)
+		return;
+
+	D(INTERFACE, "Add DNS search domain: %s\n", str);
+	memcpy(s->name, str, len);
+	list_add_tail(&s->list, &iface->proto_dns_search);
+}
+
+void
+interface_add_dns_search_list(struct interface *iface, struct blob_attr *list)
+{
+	struct blob_attr *cur;
+	int rem;
+
+	blobmsg_for_each_attr(cur, list, rem) {
+		if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
+			continue;
+
+		if (!blobmsg_check_attr(cur, NULL))
+			continue;
+
+		interface_add_dns_server(iface, blobmsg_data(cur));
+	}
+}
+
 static void
 interface_clear_dns_servers(struct interface *iface)
 {
diff --git a/interface-ip.h b/interface-ip.h
index 6049d14..6ad9b42 100644
--- a/interface-ip.h
+++ b/interface-ip.h
@@ -57,6 +57,7 @@ struct dns_search_domain {
 void interface_ip_init(struct interface *iface);
 void interface_add_dns_server(struct interface *iface, const char *str);
 void interface_add_dns_server_list(struct interface *iface, struct blob_attr *list);
+void interface_add_dns_search_list(struct interface *iface, struct blob_attr *list);
 void interface_clear_dns(struct interface *iface);
 void interface_write_resolv_conf(void);
 
diff --git a/proto-shell.c b/proto-shell.c
index c90f65c..127a79d 100644
--- a/proto-shell.c
+++ b/proto-shell.c
@@ -318,6 +318,7 @@ enum {
 	NOTIFY_ROUTES,
 	NOTIFY_ROUTES6,
 	NOTIFY_DNS,
+	NOTIFY_DNS_SEARCH,
 	__NOTIFY_LAST
 };
 
@@ -333,6 +334,7 @@ static const struct blobmsg_policy notify_attr[__NOTIFY_LAST] = {
 	[NOTIFY_ROUTES] = { .name = "routes", .type = BLOBMSG_TYPE_ARRAY },
 	[NOTIFY_ROUTES6] = { .name = "routes6", .type = BLOBMSG_TYPE_ARRAY },
 	[NOTIFY_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
+	[NOTIFY_DNS_SEARCH] = { .name = "dns_search", .type = BLOBMSG_TYPE_ARRAY },
 };
 
 static int
@@ -381,6 +383,9 @@ proto_shell_update_link(struct proto_shell_state *state, struct blob_attr **tb)
 	if ((cur = tb[NOTIFY_DNS]) != NULL)
 		interface_add_dns_server_list(state->proto.iface, cur);
 
+	if ((cur = tb[NOTIFY_DNS_SEARCH]) != NULL)
+		interface_add_dns_search_list(state->proto.iface, cur);
+
 	interface_ip_update_complete(state->proto.iface);
 
 	state->proto.proto_event(&state->proto, IFPEV_UP);
-- 
2.30.2