import udevmand

Signed-off-by: John Crispin <[email protected]>
2026-08-25 14:53:42 +00:00 · 2020-05-29 12:37:40 +02:00
commit d94c726a58
15 changed files with 2641 additions and 0 deletions
@@ -0,0 +1,106 @@
+#include "udevmand.h"
+
+enum {
+	INTERFACE_DEVICE,
+	INTERFACE_IFACE,
+	__INTERFACE_MAX
+};
+
+static const struct blobmsg_policy interface_policy[__INTERFACE_MAX] = {
+	[INTERFACE_DEVICE] = { .name = "device", .type = BLOBMSG_TYPE_STRING },
+	[INTERFACE_IFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
+};
+
+static struct avl_tree interface_tree = AVL_TREE_INIT(interface_tree, avl_strcmp, false, NULL);
+
+void
+interface_update(struct blob_attr *msg, int raw)
+{
+	struct blob_attr *tb[__INTERFACE_MAX];
+	struct interface *interface;
+	char *device, *iface, *device_buf, *iface_buf;
+
+	if (raw)
+		blobmsg_parse(interface_policy, __INTERFACE_MAX, tb, blob_data(msg), blob_len(msg));
+	else
+		blobmsg_parse(interface_policy, __INTERFACE_MAX, tb, blobmsg_data(msg), blobmsg_data_len(msg));
+
+	if (!tb[INTERFACE_DEVICE] || !tb[INTERFACE_IFACE])
+		return;
+
+	iface = blobmsg_get_string(tb[INTERFACE_IFACE]);
+	device = blobmsg_get_string(tb[INTERFACE_DEVICE]);
+
+	interface = avl_find_element(&interface_tree, iface, interface, avl);
+	if (interface) {
+		avl_delete(&interface_tree, &interface->avl);
+		free(interface);
+	}
+
+	interface = calloc_a(sizeof(struct neigh),
+			     &iface_buf, strlen(iface) + 1,
+			     &device_buf, strlen(device) + 1);
+        if (!interface)
+                return;
+	interface->iface = strcpy(iface_buf, iface);
+	interface->device = strcpy(device_buf, device);
+	interface->avl.key = interface->iface;
+
+	avl_insert(&interface_tree, &interface->avl);
+
+	ULOG_INFO("new interface %s:%s\n", iface, device);
+}
+
+void
+interface_down(struct blob_attr *msg)
+{
+	struct blob_attr *tb[__INTERFACE_MAX];
+	struct interface *interface;
+	char *iface;
+
+	blobmsg_parse(interface_policy, __INTERFACE_MAX, tb, blob_data(msg), blob_len(msg));
+
+	if (!tb[INTERFACE_IFACE])
+		return;
+
+	iface = blobmsg_get_string(tb[INTERFACE_IFACE]);
+
+	interface = avl_find_element(&interface_tree, iface, interface, avl);
+	if (!interface)
+		return;
+
+	ULOG_INFO("del interface %s\n", interface->iface);
+	avl_delete(&interface_tree, &interface->avl);
+	free(interface);
+}
+
+char*
+interface_resolve(char *ifname)
+{
+	struct interface *interface;
+
+	avl_for_each_element(&interface_tree, interface, avl)
+		if (!strcmp(interface->device, ifname))
+			return interface->iface;
+	return ifname;
+}
+
+int
+interface_dump(void)
+{
+	struct interface *interface;
+	struct mac *mac;
+
+	blob_buf_init(&b, 0);
+
+	avl_for_each_element(&interface_tree, interface, avl) {
+		void *c;
+
+		c = blobmsg_open_table(&b, interface->iface);
+		avl_for_each_element(&mac_tree, mac, avl)
+			if (!strcmp(interface->iface, mac->interface))
+				mac_dump(mac, 0);
+		blobmsg_close_table(&b, c);
+	}
+	return 0;
+}