use /lib/netifd as main path when dummy mode is disabled
[project/netifd.git] / proto-shell.c
index 1862809..65ade12 100644 (file)
@@ -1,3 +1,5 @@
+#define _GNU_SOURCE
+
 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>
@@ -6,6 +8,9 @@
 #include <fcntl.h>
 #include <signal.h>
 
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
 #include <libubox/blobmsg_json.h>
 
 #include "netifd.h"
@@ -13,7 +18,6 @@
 #include "interface-ip.h"
 #include "proto.h"
 
-static LIST_HEAD(handlers);
 static int proto_fd;
 
 struct proto_shell_handler {
@@ -29,6 +33,8 @@ struct proto_shell_state {
        struct proto_shell_handler *handler;
        struct blob_attr *config;
 
+       struct device_user l3_dev;
+
        struct uloop_timeout setup_timeout;
        struct uloop_process setup_task;
        struct uloop_process teardown_task;
@@ -123,7 +129,7 @@ proto_shell_setup_cb(struct uloop_process *p, int ret)
        state = container_of(p, struct proto_shell_state, setup_task);
        uloop_timeout_cancel(&state->setup_timeout);
        if (state->teardown_pending) {
-               state->teardown_pending = 0;
+               state->teardown_pending = false;
                proto_shell_handler(&state->proto, PROTO_CMD_TEARDOWN, false);
        }
 }
@@ -134,6 +140,10 @@ proto_shell_teardown_cb(struct uloop_process *p, int ret)
        struct proto_shell_state *state;
 
        state = container_of(p, struct proto_shell_state, teardown_task);
+
+       if (state->l3_dev.dev)
+               device_remove_user(&state->l3_dev);
+
        state->proto.proto_event(&state->proto, IFPEV_DOWN);
 }
 
@@ -147,6 +157,182 @@ proto_shell_free(struct interface_proto_state *proto)
        free(state);
 }
 
+static void
+proto_shell_parse_addr_list(struct interface *iface, struct blob_attr *attr,
+                           bool v6, bool external)
+{
+       struct device_addr *addr;
+       struct blob_attr *cur;
+       int rem;
+
+       blobmsg_for_each_attr(cur, attr, rem) {
+               if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING) {
+                       DPRINTF("Ignore wrong address type: %d\n", blobmsg_type(cur));
+                       continue;
+               }
+
+               addr = proto_parse_ip_addr_string(blobmsg_data(cur), v6, v6 ? 32 : 128);
+               if (!addr) {
+                       DPRINTF("Failed to parse IP address string: %s\n", (char *) blobmsg_data(cur));
+                       continue;
+               }
+
+               if (external)
+                       addr->flags |= DEVADDR_EXTERNAL;
+
+               vlist_add(&iface->proto_addr, &addr->node);
+       }
+}
+
+enum {
+       ROUTE_TARGET,
+       ROUTE_MASK,
+       ROUTE_GATEWAY,
+       ROUTE_DEVICE,
+       __ROUTE_LAST
+};
+
+static const struct blobmsg_policy route_attr[__ROUTE_LAST] = {
+       [ROUTE_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
+       [ROUTE_MASK] = { .name = "mask", .type = BLOBMSG_TYPE_INT32 },
+       [ROUTE_GATEWAY] = { .name = "gateway", .type = BLOBMSG_TYPE_STRING },
+       [ROUTE_DEVICE] = { .name = "device", .type = BLOBMSG_TYPE_STRING },
+};
+
+static void
+parse_route(struct interface *iface, struct blob_attr *attr, bool v6)
+{
+       struct blob_attr *tb[__ROUTE_LAST], *cur;
+       struct device_route *route;
+       int af = v6 ? AF_INET6 : AF_INET;
+
+       blobmsg_parse(route_attr, __ROUTE_LAST, tb, blobmsg_data(attr), blobmsg_data_len(attr));
+
+       if (!tb[ROUTE_GATEWAY] && !tb[ROUTE_DEVICE])
+               return;
+
+       route = calloc(1, sizeof(*route));
+       if (!route)
+               return;
+
+       route->mask = v6 ? 128 : 32;
+       if ((cur = tb[ROUTE_MASK]) != NULL) {
+               route->mask = blobmsg_get_u32(cur);
+               if (route->mask > v6 ? 128 : 32)
+                       goto error;
+       }
+
+       if ((cur = tb[ROUTE_TARGET]) != NULL) {
+               if (!inet_pton(af, blobmsg_data(cur), &route->addr)) {
+                       DPRINTF("Failed to parse route target: %s\n", (char *) blobmsg_data(cur));
+                       goto error;
+               }
+       }
+
+       if ((cur = tb[ROUTE_GATEWAY]) != NULL) {
+               if (!inet_pton(af, blobmsg_data(cur), &route->nexthop)) {
+                       DPRINTF("Failed to parse route gateway: %s\n", (char *) blobmsg_data(cur));
+                       goto error;
+               }
+       }
+
+       if ((cur = tb[ROUTE_DEVICE]) != NULL)
+               route->device = device_get(blobmsg_data(cur), true);
+
+       vlist_add(&iface->proto_route, &route->node);
+       return;
+
+error:
+       free(route);
+}
+
+static void
+proto_shell_parse_route_list(struct interface *iface, struct blob_attr *attr,
+                            bool v6)
+{
+       struct blob_attr *cur;
+       int rem;
+
+       blobmsg_for_each_attr(cur, attr, rem) {
+               if (blobmsg_type(cur) != BLOBMSG_TYPE_TABLE) {
+                       DPRINTF("Ignore wrong route type: %d\n", blobmsg_type(cur));
+                       continue;
+               }
+
+               parse_route(iface, cur, v6);
+       }
+}
+
+
+enum {
+       NOTIFY_LINK_UP,
+       NOTIFY_IFNAME,
+       NOTIFY_ADDR_EXT,
+       NOTIFY_IPADDR,
+       NOTIFY_IP6ADDR,
+       NOTIFY_ROUTES,
+       NOTIFY_ROUTES6,
+       __NOTIFY_LAST
+};
+
+static const struct blobmsg_policy notify_attr[__NOTIFY_LAST] = {
+       [NOTIFY_LINK_UP] = { .name = "link-up", .type = BLOBMSG_TYPE_BOOL },
+       [NOTIFY_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
+       [NOTIFY_ADDR_EXT] = { .name = "address-external", .type = BLOBMSG_TYPE_BOOL },
+       [NOTIFY_IPADDR] = { .name = "ipaddr", .type = BLOBMSG_TYPE_ARRAY },
+       [NOTIFY_IP6ADDR] = { .name = "ip6addr", .type = BLOBMSG_TYPE_ARRAY },
+       [NOTIFY_ROUTES] = { .name = "routes", .type = BLOBMSG_TYPE_ARRAY },
+       [NOTIFY_ROUTES6] = { .name = "routes6", .type = BLOBMSG_TYPE_ARRAY },
+};
+
+static int
+proto_shell_notify(struct interface_proto_state *proto, struct blob_attr *attr)
+{
+       struct proto_shell_state *state;
+       struct blob_attr *tb[__NOTIFY_LAST], *cur;
+       bool addr_ext = false;
+       bool up;
+
+       state = container_of(proto, struct proto_shell_state, proto);
+
+       blobmsg_parse(notify_attr, __NOTIFY_LAST, tb, blob_data(attr), blob_len(attr));
+       if (!tb[NOTIFY_LINK_UP])
+               return UBUS_STATUS_INVALID_ARGUMENT;
+
+       up = blobmsg_get_bool(tb[NOTIFY_LINK_UP]);
+       if (up) {
+               if (!tb[NOTIFY_IFNAME])
+                       return UBUS_STATUS_INVALID_ARGUMENT;
+
+               if (!state->l3_dev.dev) {
+                       device_add_user(&state->l3_dev,
+                               device_get(blobmsg_data(tb[NOTIFY_IFNAME]), true));
+                       device_claim(&state->l3_dev);
+                       state->proto.iface->l3_dev = &state->l3_dev;
+               }
+               state->proto.proto_event(&state->proto, IFPEV_UP);
+       } else {
+               state->proto.proto_event(&state->proto, IFPEV_LINK_LOST);
+       }
+
+       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);
+
+       if ((cur = tb[NOTIFY_IP6ADDR]) != NULL)
+               proto_shell_parse_addr_list(state->proto.iface, cur, true, addr_ext);
+
+       if ((cur = tb[NOTIFY_ROUTES]) != NULL)
+               proto_shell_parse_route_list(state->proto.iface, cur, false);
+
+       if ((cur = tb[NOTIFY_ROUTES6]) != NULL)
+               proto_shell_parse_route_list(state->proto.iface, cur, true);
+
+       return 0;
+}
+
 struct interface_proto_state *
 proto_shell_attach(const struct proto_handler *h, struct interface *iface,
                   struct blob_attr *attr)
@@ -160,6 +346,7 @@ 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.notify = proto_shell_notify;
        state->proto.cb = proto_shell_handler;
        state->setup_timeout.cb = proto_shell_setup_timeout_cb;
        state->setup_task.cb = proto_shell_setup_cb;
@@ -199,11 +386,11 @@ proto_shell_parse_config(struct config_param_list *config, json_object *obj)
        int str_len = 0;
        int i;
 
-       attrs = calloc(1, sizeof(*attrs));
+       config->n_params = json_object_array_length(obj);
+       attrs = calloc(1, sizeof(*attrs) * config->n_params);
        if (!attrs)
                return NULL;
 
-       config->n_params = json_object_array_length(obj);
        config->params = attrs;
        for (i = 0; i < config->n_params; i++) {
                json_object *cur, *name, *type;
@@ -225,7 +412,7 @@ proto_shell_parse_config(struct config_param_list *config, json_object *obj)
                if (attrs[i].type > BLOBMSG_TYPE_LAST)
                        goto error;
 
-               str_len += strlen(attrs[i].name + 1);
+               str_len += strlen(attrs[i].name) + 1;
        }
 
        str_buf = malloc(str_len);