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nuttx/net/udp/udp_setsockopt.c

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Squashed commit of the following: syscalls/: Add syscall support for if_nametoindex() and if_indextoname() net/: Update some comments.
2018-06-25 20:41:28 +02:00
/****************************************************************************
* net/udp/udp_setsockopt.c
*
net: Author Gregory Nutt: update licenses to Apache Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-02-19 12:45:37 +01:00
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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
Squashed commit of the following: syscalls/: Add syscall support for if_nametoindex() and if_indextoname() net/: Update some comments.
2018-06-25 20:41:28 +02:00
*
net: Author Gregory Nutt: update licenses to Apache Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-02-19 12:45:37 +01:00
* http://www.apache.org/licenses/LICENSE-2.0
Squashed commit of the following: syscalls/: Add syscall support for if_nametoindex() and if_indextoname() net/: Update some comments.
2018-06-25 20:41:28 +02:00
*
net: Author Gregory Nutt: update licenses to Apache Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-02-19 12:45:37 +01:00
* 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.
Squashed commit of the following: syscalls/: Add syscall support for if_nametoindex() and if_indextoname() net/: Update some comments.
2018-06-25 20:41:28 +02:00
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <errno.h>
#include <assert.h>
#include <debug.h>
net/: Add missing packet filtering checks NuttX provides the UDP_BINDTODEVICE socket option. This is a UDP protocol-specific implementation of the semi-standard Linux SO_BINDTODEVICE socket option: "SO_BINDTODEVICE forces packets on the socket to only egress the bound interface, regardless of what the IP routing table would normally choose. Similarly only packets which ingress the bound interface will be received on the socket, packets from other interfaces will not be delivered to the socket." https://codingrelic.geekhold.com/2009/10/code-snippet-sobindtodevice.html If CONFIG_NET_UDP_BINDTODEVICE is selected and a UDP socket is bound to the device, then unrecognized packets UDP packets must not be dropped, but must be forwarded along to the bound socket unconditionally. It the typical case, this should have no impact. It does effect the applications that use DHCP and do select the UDP_BINDTODEVICE socket option. This PR replace existing improper logic in the code and also the improper attempts to fix problems from PR #3601 and PR #3598. Those changes are improper because they expose DHCP appliction dependencies in the OS, breaking modularity and independence of the OS and application. Tested with stm32f4discovery:netnsh with CONFIG_NET_UDP_BINDTODEVICE. A proper DHCP test setup is needed, however.
2021-04-28 22:18:16 +02:00
#include <net/if.h>
Squashed commit of the following: syscalls/: Add syscall support for if_nametoindex() and if_indextoname() net/: Update some comments.
2018-06-25 20:41:28 +02:00
#include <netinet/udp.h>
#include <nuttx/net/net.h>
net/: Add missing packet filtering checks NuttX provides the UDP_BINDTODEVICE socket option. This is a UDP protocol-specific implementation of the semi-standard Linux SO_BINDTODEVICE socket option: "SO_BINDTODEVICE forces packets on the socket to only egress the bound interface, regardless of what the IP routing table would normally choose. Similarly only packets which ingress the bound interface will be received on the socket, packets from other interfaces will not be delivered to the socket." https://codingrelic.geekhold.com/2009/10/code-snippet-sobindtodevice.html If CONFIG_NET_UDP_BINDTODEVICE is selected and a UDP socket is bound to the device, then unrecognized packets UDP packets must not be dropped, but must be forwarded along to the bound socket unconditionally. It the typical case, this should have no impact. It does effect the applications that use DHCP and do select the UDP_BINDTODEVICE socket option. This PR replace existing improper logic in the code and also the improper attempts to fix problems from PR #3601 and PR #3598. Those changes are improper because they expose DHCP appliction dependencies in the OS, breaking modularity and independence of the OS and application. Tested with stm32f4discovery:netnsh with CONFIG_NET_UDP_BINDTODEVICE. A proper DHCP test setup is needed, however.
2021-04-28 22:18:16 +02:00
#include <nuttx/net/netdev.h>
Squashed commit of the following: syscalls/: Add syscall support for if_nametoindex() and if_indextoname() net/: Update some comments.
2018-06-25 20:41:28 +02:00
#include <nuttx/net/udp.h>
#include "socket/socket.h"
#include "utils/utils.h"
net/udp: Finish support for the UDP_BINDTODEVICE protocol socket option
2018-06-25 23:07:53 +02:00
#include "netdev/netdev.h"
Squashed commit of the following: syscalls/: Add syscall support for if_nametoindex() and if_indextoname() net/: Update some comments.
2018-06-25 20:41:28 +02:00
#include "udp/udp.h"
#ifdef CONFIG_NET_UDPPROTO_OPTIONS
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: udp_setsockopt
*
* Description:
* udp_setsockopt() sets the UDP-protocol option specified by the
* 'option' argument to the value pointed to by the 'value' argument for
* the socket specified by the 'psock' argument.
*
* See <netinet/udp.h> for the a complete list of values of UDP protocol
* options.
*
* Input Parameters:
* psock Socket structure of socket to operate on
* option identifies the option to set
* value Points to the argument value
* value_len The length of the argument value
*
* Returned Value:
* Returns zero (OK) on success. On failure, it returns a negated errno
* value to indicate the nature of the error. See psock_setcockopt() for
* the list of possible error values.
*
****************************************************************************/
int udp_setsockopt(FAR struct socket *psock, int option,
FAR const void *value, socklen_t value_len)
{
return -ENOPROTOOPT;
}
#endif /* CONFIG_NET_UDPPROTO_OPTIONS */
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