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/*
* netifd - network interface daemon
* Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#define _GNU_SOURCE
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "netifd.h"
#include "proto.h"
#include "handler.h"
#include "proto-ext.h"
static int proto_fd = -1;
struct proto_shell_handler {
struct list_head list;
struct proto_handler proto;
char *config_buf;
char *script_name;
bool init_available;
struct uci_blob_param_list config;
};
static int
proto_shell_start(struct proto_ext_state *state, const char *action,
const char *config, char **envp)
{
struct proto_shell_handler *handler;
const char *argv[7];
int i = 0;
handler = container_of(state->proto.handler, struct proto_shell_handler, proto);
argv[i++] = handler->script_name;
argv[i++] = handler->proto.name;
argv[i++] = action;
argv[i++] = state->proto.iface->name;
argv[i++] = config;
if (state->proto.iface->main_dev.dev)
argv[i++] = state->proto.iface->main_dev.dev->ifname;
argv[i] = NULL;
return netifd_start_process(argv, envp, &state->script_task);
}
static int
proto_shell_handler(struct interface_proto_state *proto,
enum interface_proto_cmd cmd, bool force)
{
struct proto_ext_state *state;
state = container_of(proto, struct proto_ext_state, proto);
return proto_ext_run(state, cmd, force, proto_shell_start);
}
static struct interface_proto_state *
proto_shell_attach(const struct proto_handler *h, struct interface *iface,
struct blob_attr *attr)
{
struct proto_ext_state *state;
state = calloc(1, sizeof(*state));
if (!state)
return NULL;
proto_ext_state_init(state, iface, attr, proto_fd);
if (!state->config) {
free(state);
return NULL;
}
state->proto.cb = proto_shell_handler;
return &state->proto;
}
static void
proto_shell_add_handler(const char *script, const char *name, json_object *obj)
{
struct proto_shell_handler *handler;
struct proto_handler *proto;
json_object *config, *tmp;
char *proto_name, *script_name;
handler = calloc_a(sizeof(*handler),
&proto_name, strlen(name) + 1,
&script_name, strlen(script) + 1);
if (!handler)
return;
handler->script_name = strcpy(script_name, script);
proto = &handler->proto;
proto->name = strcpy(proto_name, name);
proto->config_params = &handler->config;
proto->attach = proto_shell_attach;
tmp = json_get_field(obj, "no-device", json_type_boolean);
if (tmp && json_object_get_boolean(tmp))
handler->proto.flags |= PROTO_FLAG_NODEV;
tmp = json_get_field(obj, "no-device-config", json_type_boolean);
if (tmp && json_object_get_boolean(tmp))
handler->proto.flags |= PROTO_FLAG_NODEV_CONFIG;
tmp = json_get_field(obj, "no-proto-task", json_type_boolean);
if (tmp && json_object_get_boolean(tmp))
handler->proto.flags |= PROTO_FLAG_NO_TASK;
tmp = json_get_field(obj, "available", json_type_boolean);
if (tmp && json_object_get_boolean(tmp))
handler->proto.flags |= PROTO_FLAG_INIT_AVAILABLE;
tmp = json_get_field(obj, "renew-handler", json_type_boolean);
if (tmp && json_object_get_boolean(tmp))
handler->proto.flags |= PROTO_FLAG_RENEW_AVAILABLE;
tmp = json_get_field(obj, "lasterror", json_type_boolean);
if (tmp && json_object_get_boolean(tmp))
handler->proto.flags |= PROTO_FLAG_LASTERROR;
tmp = json_get_field(obj, "teardown-on-l3-link-down", json_type_boolean);
if (tmp && json_object_get_boolean(tmp))
handler->proto.flags |= PROTO_FLAG_TEARDOWN_ON_L3_LINK_DOWN;
config = json_get_field(obj, "config", json_type_array);
if (config)
handler->config_buf = netifd_handler_parse_config(&handler->config, config);
D(INTERFACE, "Add handler for script %s: %s", script, proto->name);
add_proto_handler(proto);
}
void proto_shell_init(void)
{
proto_fd = netifd_open_subdir("proto");
if (proto_fd < 0)
return;
netifd_init_script_handlers(proto_fd, proto_shell_add_handler);
}
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