From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 19 Oct 2011 16:46:53 +0000 (+0200)
Subject: add support for keeping multiple ip addr/route/dns lists
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fnetifd.git;a=commitdiff_plain;h=a0dedf26ed338ef420784541da0676ad91e181a7

add support for keeping multiple ip addr/route/dns lists
---

diff --git a/interface-ip.c b/interface-ip.c
index a5efad5..b875f50 100644
--- a/interface-ip.c
+++ b/interface-ip.c
@@ -32,11 +32,13 @@ interface_update_proto_addr(struct vlist_tree *tree,
 			    struct vlist_node *node_new,
 			    struct vlist_node *node_old)
 {
+	struct interface_ip_settings *ip;
 	struct interface *iface;
 	struct device *dev;
 	struct device_addr *addr;
 
-	iface = container_of(tree, struct interface, proto_addr);
+	ip = container_of(tree, struct interface_ip_settings, addr);
+	iface = ip->iface;
 	dev = iface->l3_dev->dev;
 
 	if (node_old) {
@@ -58,11 +60,13 @@ interface_update_proto_route(struct vlist_tree *tree,
 			     struct vlist_node *node_new,
 			     struct vlist_node *node_old)
 {
+	struct interface_ip_settings *ip;
 	struct interface *iface;
 	struct device *dev;
 	struct device_route *route;
 
-	iface = container_of(tree, struct interface, proto_route);
+	ip = container_of(tree, struct interface_ip_settings, route);
+	iface = ip->iface;
 	dev = iface->l3_dev->dev;
 
 	if (node_old) {
@@ -80,7 +84,7 @@ interface_update_proto_route(struct vlist_tree *tree,
 }
 
 void
-interface_add_dns_server(struct interface *iface, const char *str)
+interface_add_dns_server(struct interface_ip_settings *ip, const char *str)
 {
 	struct dns_server *s;
 
@@ -99,11 +103,11 @@ interface_add_dns_server(struct interface *iface, const char *str)
 add:
 	D(INTERFACE, "Add IPv%c DNS server: %s\n",
 	  s->af == AF_INET6 ? '6' : '4', str);
-	list_add_tail(&s->list, &iface->proto_dns_servers);
+	list_add_tail(&s->list, &ip->dns_servers);
 }
 
 void
-interface_add_dns_server_list(struct interface *iface, struct blob_attr *list)
+interface_add_dns_server_list(struct interface_ip_settings *ip, struct blob_attr *list)
 {
 	struct blob_attr *cur;
 	int rem;
@@ -115,12 +119,12 @@ interface_add_dns_server_list(struct interface *iface, struct blob_attr *list)
 		if (!blobmsg_check_attr(cur, NULL))
 			continue;
 
-		interface_add_dns_server(iface, blobmsg_data(cur));
+		interface_add_dns_server(ip, blobmsg_data(cur));
 	}
 }
 
 void
-interface_add_dns_search_domain(struct interface *iface, const char *str)
+interface_add_dns_search_domain(struct interface_ip_settings *ip, const char *str)
 {
 	struct dns_search_domain *s;
 	int len = strlen(str);
@@ -131,11 +135,11 @@ interface_add_dns_search_domain(struct interface *iface, const char *str)
 
 	D(INTERFACE, "Add DNS search domain: %s\n", str);
 	memcpy(s->name, str, len);
-	list_add_tail(&s->list, &iface->proto_dns_search);
+	list_add_tail(&s->list, &ip->dns_search);
 }
 
 void
-interface_add_dns_search_list(struct interface *iface, struct blob_attr *list)
+interface_add_dns_search_list(struct interface_ip_settings *ip, struct blob_attr *list)
 {
 	struct blob_attr *cur;
 	int rem;
@@ -147,40 +151,33 @@ interface_add_dns_search_list(struct interface *iface, struct blob_attr *list)
 		if (!blobmsg_check_attr(cur, NULL))
 			continue;
 
-		interface_add_dns_server(iface, blobmsg_data(cur));
+		interface_add_dns_server(ip, blobmsg_data(cur));
 	}
 }
 
 static void
-interface_clear_dns_servers(struct interface *iface)
+interface_clear_dns_servers(struct interface_ip_settings *ip)
 {
 	struct dns_server *s, *tmp;
 
-	list_for_each_entry_safe(s, tmp, &iface->proto_dns_servers, list) {
+	list_for_each_entry_safe(s, tmp, &ip->dns_servers, list) {
 		list_del(&s->list);
 		free(s);
 	}
 }
 
 static void
-interface_clear_dns_search(struct interface *iface)
+interface_clear_dns_search(struct interface_ip_settings *ip)
 {
 	struct dns_search_domain *s, *tmp;
 
-	list_for_each_entry_safe(s, tmp, &iface->proto_dns_search, list) {
+	list_for_each_entry_safe(s, tmp, &ip->dns_search, list) {
 		list_del(&s->list);
 		free(s);
 	}
 }
 
 void
-interface_clear_dns(struct interface *iface)
-{
-	interface_clear_dns_servers(iface);
-	interface_clear_dns_search(iface);
-}
-
-void
 interface_write_resolv_conf(void)
 {
 	struct interface *iface;
@@ -203,12 +200,12 @@ interface_write_resolv_conf(void)
 		if (iface->state != IFS_UP)
 			continue;
 
-		if (list_empty(&iface->proto_dns_search) &&
-		    list_empty(&iface->proto_dns_servers))
+		if (list_empty(&iface->proto_ip.dns_search) &&
+		    list_empty(&iface->proto_ip.dns_servers))
 			continue;
 
 		fprintf(f, "# Interface %s\n", iface->name);
-		list_for_each_entry(s, &iface->proto_dns_servers, list) {
+		list_for_each_entry(s, &iface->proto_ip.dns_servers, list) {
 			str = inet_ntop(s->af, &s->addr, buf, sizeof(buf));
 			if (!str)
 				continue;
@@ -216,7 +213,7 @@ interface_write_resolv_conf(void)
 			fprintf(f, "nameserver %s\n", str);
 		}
 
-		list_for_each_entry(d, &iface->proto_dns_search, list) {
+		list_for_each_entry(d, &iface->proto_ip.dns_search, list) {
 			fprintf(f, "search %s\n", d->name);
 		}
 	}
@@ -228,25 +225,38 @@ interface_write_resolv_conf(void)
 }
 
 void
-interface_ip_update_start(struct interface *iface)
+interface_ip_update_start(struct interface_ip_settings *ip)
+{
+	interface_clear_dns_servers(ip);
+	interface_clear_dns_search(ip);
+	vlist_update(&ip->route);
+	vlist_update(&ip->addr);
+}
+
+void
+interface_ip_update_complete(struct interface_ip_settings *ip)
 {
-	interface_clear_dns(iface);
-	vlist_update(&iface->proto_route);
-	vlist_update(&iface->proto_addr);
+	vlist_flush(&ip->route);
+	vlist_flush(&ip->addr);
 }
 
 void
-interface_ip_update_complete(struct interface *iface)
+interface_ip_flush(struct interface_ip_settings *ip)
 {
-	vlist_flush(&iface->proto_route);
-	vlist_flush(&iface->proto_addr);
+	interface_clear_dns_servers(ip);
+	interface_clear_dns_search(ip);
+	vlist_flush_all(&ip->route);
+	vlist_flush_all(&ip->addr);
 }
 
 void
-interface_ip_init(struct interface *iface)
+interface_ip_init(struct interface_ip_settings *ip, struct interface *iface)
 {
-	vlist_init(&iface->proto_route, route_cmp, interface_update_proto_route,
+	ip->iface = iface;
+	INIT_LIST_HEAD(&ip->dns_search);
+	INIT_LIST_HEAD(&ip->dns_servers);
+	vlist_init(&ip->route, route_cmp, interface_update_proto_route,
 		   struct device_route, node, mask);
-	vlist_init(&iface->proto_addr, addr_cmp, interface_update_proto_addr,
+	vlist_init(&ip->addr, addr_cmp, interface_update_proto_addr,
 		   struct device_addr, node, mask);
 }
diff --git a/interface-ip.h b/interface-ip.h
index 6ad9b42..4a1776d 100644
--- a/interface-ip.h
+++ b/interface-ip.h
@@ -1,6 +1,8 @@
 #ifndef __INTERFACE_IP_H
 #define __INTERFACE_IP_H
 
+#include "interface.h"
+
 enum device_addr_flags {
 	/* address family for routes and addresses */
 	DEVADDR_INET4		= (0 << 0),
@@ -54,15 +56,15 @@ struct dns_search_domain {
 	char name[];
 };
 
-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_ip_init(struct interface_ip_settings *ip, struct interface *iface);
+void interface_add_dns_server(struct interface_ip_settings *ip, const char *str);
+void interface_add_dns_server_list(struct interface_ip_settings *ip, struct blob_attr *list);
+void interface_add_dns_search_list(struct interface_ip_settings *ip, struct blob_attr *list);
 void interface_write_resolv_conf(void);
 
-void interface_ip_update_start(struct interface *iface);
-void interface_ip_update_complete(struct interface *iface);
+void interface_ip_update_start(struct interface_ip_settings *ip);
+void interface_ip_update_complete(struct interface_ip_settings *ip);
+void interface_ip_flush(struct interface_ip_settings *ip);
 
 
 #endif
diff --git a/interface.c b/interface.c
index befb194..11b629a 100644
--- a/interface.c
+++ b/interface.c
@@ -90,9 +90,7 @@ interface_event(struct interface *iface, enum interface_event ev)
 static void
 interface_flush_state(struct interface *iface)
 {
-	interface_clear_dns(iface);
-	vlist_flush_all(&iface->proto_addr);
-	vlist_flush_all(&iface->proto_route);
+	interface_ip_flush(&iface->proto_ip);
 	if (iface->main_dev.dev)
 		device_release(&iface->main_dev);
 }
@@ -219,7 +217,7 @@ interface_cleanup(struct interface *iface)
 	list_for_each_entry_safe(dep, tmp, &iface->users, list)
 		interface_remove_user(dep);
 
-	interface_clear_dns(iface);
+	interface_flush_state(iface);
 	interface_clear_errors(iface);
 	if (iface->main_dev.dev)
 		device_remove_user(&iface->main_dev);
@@ -332,8 +330,7 @@ interface_init(struct interface *iface, const char *name,
 	INIT_LIST_HEAD(&iface->errors);
 	INIT_LIST_HEAD(&iface->users);
 	INIT_LIST_HEAD(&iface->hotplug_list);
-	INIT_LIST_HEAD(&iface->proto_dns_search);
-	INIT_LIST_HEAD(&iface->proto_dns_servers);
+	interface_ip_init(&iface->proto_ip, iface);
 
 	iface->main_dev.cb = interface_cb;
 	iface->l3_dev = &iface->main_dev;
@@ -509,7 +506,6 @@ interface_update(struct vlist_tree *tree, struct vlist_node *node_new,
 		D(INTERFACE, "Create interface '%s'\n", if_new->name);
 		interface_claim_device(if_new);
 		proto_init_interface(if_new, if_new->config);
-		interface_ip_init(if_new);
 		netifd_ubus_add_interface(if_new);
 	}
 }
diff --git a/interface.h b/interface.h
index 8a00900..598774b 100644
--- a/interface.h
+++ b/interface.h
@@ -39,6 +39,16 @@ struct interface_user {
 	void (*cb)(struct interface_user *dep, enum interface_event ev);
 };
 
+struct interface_ip_settings {
+	struct interface *iface;
+
+	struct vlist_tree addr;
+	struct vlist_tree route;
+
+	struct list_head dns_servers;
+	struct list_head dns_search;
+};
+
 /*
  * interface configuration
  */
@@ -72,11 +82,7 @@ struct interface {
 	const struct proto_handler *proto_handler;
 	struct interface_proto_state *proto;
 
-	struct vlist_tree proto_addr;
-	struct vlist_tree proto_route;
-
-	struct list_head proto_dns_servers;
-	struct list_head proto_dns_search;
+	struct interface_ip_settings proto_ip;
 
 	/* errors/warnings while trying to bring up the interface */
 	struct list_head errors;
diff --git a/proto-shell.c b/proto-shell.c
index 415eb74..ae4ebd3 100644
--- a/proto-shell.c
+++ b/proto-shell.c
@@ -161,7 +161,7 @@ proto_shell_free(struct interface_proto_state *proto)
 }
 
 static void
-proto_shell_parse_addr_list(struct interface *iface, struct blob_attr *attr,
+proto_shell_parse_addr_list(struct interface_ip_settings *ip, struct blob_attr *attr,
 			    bool v6, bool external)
 {
 	struct device_addr *addr;
@@ -183,7 +183,7 @@ proto_shell_parse_addr_list(struct interface *iface, struct blob_attr *attr,
 		if (external)
 			addr->flags |= DEVADDR_EXTERNAL;
 
-		vlist_add(&iface->proto_addr, &addr->node);
+		vlist_add(&ip->addr, &addr->node);
 	}
 }
 
@@ -203,7 +203,7 @@ static const struct blobmsg_policy route_attr[__ROUTE_LAST] = {
 };
 
 static void
-parse_route(struct interface *iface, struct blob_attr *attr, bool v6)
+parse_route(struct interface_ip_settings *ip, struct blob_attr *attr, bool v6)
 {
 	struct blob_attr *tb[__ROUTE_LAST], *cur;
 	struct device_route *route;
@@ -242,7 +242,7 @@ parse_route(struct interface *iface, struct blob_attr *attr, bool v6)
 	if ((cur = tb[ROUTE_DEVICE]) != NULL)
 		route->device = device_get(blobmsg_data(cur), true);
 
-	vlist_add(&iface->proto_route, &route->node);
+	vlist_add(&ip->route, &route->node);
 	return;
 
 error:
@@ -250,7 +250,7 @@ error:
 }
 
 static void
-proto_shell_parse_route_list(struct interface *iface, struct blob_attr *attr,
+proto_shell_parse_route_list(struct interface_ip_settings *ip, struct blob_attr *attr,
 			     bool v6)
 {
 	struct blob_attr *cur;
@@ -262,7 +262,7 @@ proto_shell_parse_route_list(struct interface *iface, struct blob_attr *attr,
 			continue;
 		}
 
-		parse_route(iface, cur, v6);
+		parse_route(ip, cur, v6);
 	}
 }
 
@@ -302,6 +302,7 @@ static const struct blobmsg_policy notify_attr[__NOTIFY_LAST] = {
 static int
 proto_shell_update_link(struct proto_shell_state *state, struct blob_attr **tb)
 {
+	struct interface_ip_settings *ip;
 	struct blob_attr *cur;
 	bool addr_ext = false;
 	bool up;
@@ -328,30 +329,31 @@ proto_shell_update_link(struct proto_shell_state *state, struct blob_attr **tb)
 		device_claim(&state->l3_dev);
 	}
 
-	interface_ip_update_start(state->proto.iface);
+	ip = &state->proto.iface->proto_ip;
+	interface_ip_update_start(ip);
 
 	if ((cur = tb[NOTIFY_ADDR_EXT]) != NULL)
 		addr_ext = blobmsg_get_bool(cur);
 
 	if ((cur = tb[NOTIFY_IPADDR]) != NULL)
-		proto_shell_parse_addr_list(state->proto.iface, cur, false, addr_ext);
+		proto_shell_parse_addr_list(ip, cur, false, addr_ext);
 
 	if ((cur = tb[NOTIFY_IP6ADDR]) != NULL)
-		proto_shell_parse_addr_list(state->proto.iface, cur, true, addr_ext);
+		proto_shell_parse_addr_list(ip, cur, true, addr_ext);
 
 	if ((cur = tb[NOTIFY_ROUTES]) != NULL)
-		proto_shell_parse_route_list(state->proto.iface, cur, false);
+		proto_shell_parse_route_list(ip, cur, false);
 
 	if ((cur = tb[NOTIFY_ROUTES6]) != NULL)
-		proto_shell_parse_route_list(state->proto.iface, cur, true);
+		proto_shell_parse_route_list(ip, cur, true);
 
 	if ((cur = tb[NOTIFY_DNS]) != NULL)
-		interface_add_dns_server_list(state->proto.iface, cur);
+		interface_add_dns_server_list(ip, cur);
 
 	if ((cur = tb[NOTIFY_DNS_SEARCH]) != NULL)
-		interface_add_dns_search_list(state->proto.iface, cur);
+		interface_add_dns_search_list(ip, cur);
 
-	interface_ip_update_complete(state->proto.iface);
+	interface_ip_update_complete(ip);
 
 	state->proto.proto_event(&state->proto, IFPEV_UP);
 
diff --git a/proto-static.c b/proto-static.c
index b8f3412..a7d75ec 100644
--- a/proto-static.c
+++ b/proto-static.c
@@ -58,7 +58,7 @@ parse_addr(struct interface *iface, const char *str, bool v6, int mask)
 		interface_add_error(iface, "proto-static", "INVALID_ADDRESS", &str, 1);
 		return false;
 	}
-	vlist_add(&iface->proto_addr, &addr->node);
+	vlist_add(&iface->proto_ip.addr, &addr->node);
 	return true;
 }
 
@@ -94,7 +94,7 @@ parse_gateway_option(struct interface *iface, struct blob_attr *attr, bool v6)
 	}
 	route->mask = 0;
 	route->flags = DEVADDR_DEVICE | (v6 ? DEVADDR_INET6 : DEVADDR_INET4);
-	vlist_add(&iface->proto_route, &route->node);
+	vlist_add(&iface->proto_ip.route, &route->node);
 
 	return true;
 }
@@ -142,7 +142,7 @@ proto_apply_static_settings(struct interface *iface, struct blob_attr *attr)
 	}
 
 	if (tb[OPT_DNS])
-		interface_add_dns_server_list(iface, tb[OPT_DNS]);
+		interface_add_dns_server_list(&iface->proto_ip, tb[OPT_DNS]);
 
 	return 0;