Mbed OS Reference | L3IPInterface.h Source File

 /*
  * Copyright (c) 2018 ARM Limited
  * SPDX-License-Identifier: Apache-2.0
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 
 #ifndef L3IP_INTERFACE_H
 #define L3IP_INTERFACE_H
 
 #include "nsapi.h"
 #include "L3IP.h"
 #include "OnboardNetworkStack.h"
 #include "SocketAddress.h"
 
 /** L3IPInterface class
  *  Implementation of the NetworkInterface for an IP-based driver
  *
  * This class provides the necessary glue logic to create a NetworkInterface
  * based on an L3IP and an OnboardNetworkStack. Cellular Interface  drivers derive from it.
  *
  * Drivers derived from L3IPInterface should be constructed so that their
  * L3IP is functional without the need to call `connect()`.
  */
 class L3IPInterface : public virtual NetworkInterface {
 public:
     /** Create an L3IP-based network interface.
      *
      * The default arguments obtain the default L3IP, which will be target-
      * dependent (and the target may have some JSON option to choose which
      * is the default, if there are multiple). The default stack is configured
      * by JSON option nsapi.default-stack.
      *
      * Due to inability to return errors from the constructor, no real
      * work is done until the first call to connect().
      *
      * @param l3ip  Reference to L3IP to use
      * @param stack Reference to onboard-network stack to use
      */
     L3IPInterface(L3IP &l3ip = L3IP::get_default_instance(),
                   OnboardNetworkStack &stack = OnboardNetworkStack::get_default_instance());
     ~L3IPInterface() override;
     /** Set a static IP address
      *
      *  Configures this network interface to use a static IP address.
      *  Implicitly disables DHCP, which can be enabled in set_dhcp.
      *  Requires that the network is disconnected.
      *
      *  @param ip_address  SocketAddress representation of the local IP address
      *  @param netmask     SocketAddress representation of the local network mask
      *  @param gateway     SocketAddress representation of the local gateway
      *  @return            0 on success, negative error code on failure
      */
     nsapi_error_t set_network(const SocketAddress &ip_address, const SocketAddress &netmask, const SocketAddress &gateway) override;
 
     /** Enable or disable DHCP on the network
      *
      *  Requires that the network is disconnected
      *
      *  @param dhcp     False to disable dhcp (defaults to enabled)
      *  @return         0 on success, negative error code on failure
      */
     nsapi_error_t set_dhcp(bool dhcp) override;
 
     /** Start the interface
      *  @return             0 on success, negative on failure
      */
     nsapi_error_t connect() override;
 
     /** Stop the interface
      *  @return             0 on success, negative on failure
      */
     nsapi_error_t disconnect() override;
 
     /** @copydoc NetworkInterface::get_ip_address */
     nsapi_error_t get_ip_address(SocketAddress *address) override;
 
     /** @copydoc NetworkInterface::get_netmask */
     nsapi_error_t get_netmask(SocketAddress *address) override;
 
     /** @copydoc NetworkInterface::get_gateway */
     nsapi_error_t get_gateway(SocketAddress *address) override;
 
     /** Get the network interface name
      *
      *  @return         Null-terminated representation of the network interface name
      *                  or null if  interface not exists
      */
     char *get_interface_name(char *interface_name) override;
 
     /** Set the network interface as default one
       */
     void set_as_default() override;
 
     /** Register callback for status reporting
      *
      *  @param status_cb The callback for status changes
      */
     void attach(mbed::Callback<void(nsapi_event_t, intptr_t)> status_cb) override;
 
     /** Get the connection status
      *
      *  @return         The connection status according to nsapi_connection_status_t
      */
     nsapi_connection_status_t get_connection_status() const override;
 
     /** Set blocking status of connect() which by default should be blocking
      *
      *  @param blocking true if connect is blocking
      *  @return         0 on success, negative error code on failure
      */
     nsapi_error_t set_blocking(bool blocking) override;
 
     /** Provide access to the L3IP
      *
      * This should be used with care - normally the network stack would
      * control the L3IP, so manipulating the L3IP while the stack
      * is also using it (ie after connect) will likely cause problems.
      *
      * @return          Reference to the L3IP in use
      */
     L3IP &getl3ip() const
     {
         return _l3ip;
     }
 
 #if 0
     /* NetworkInterface does not currently have l3ipInterface, so this
      * "dynamic cast" is non-functional.
      */
     L3IPInterface *l3ipInterface() final
     {
         return this;
     }
 #endif
 
 protected:
     /** Provide access to the underlying stack
      *
      *  @return The underlying network stack
      */
     NetworkStack *get_stack() override;
 
     L3IP &_l3ip;
     OnboardNetworkStack &_stack;
     OnboardNetworkStack::Interface *_interface = nullptr;
     bool _dhcp = true;
     bool _blocking = true;
     SocketAddress _ip_address;
     SocketAddress _netmask;
     SocketAddress _gateway;
     mbed::Callback<void(nsapi_event_t, intptr_t)> _connection_status_cb;
 };
 
 #endif
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