5c5c08efcd
1.Consolidate absolute to relative timeout conversion into one place(_net_timedwait) 2.Drive the wait timeout logic by net_timedwait instead of devif_timer This patch help us remove devif_timer(period tick) to save the power in the future. Change-Id: I534748a5d767ca6da8a7843c3c2f993ed9ea77d4 Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
755 lines
25 KiB
C
755 lines
25 KiB
C
/****************************************************************************
|
|
* net/icmpv6/icmpv6.h
|
|
*
|
|
* Copyright (C) 2015, 2017-2019 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __NET_ICMPv6_ICMPv6_H
|
|
#define __NET_ICMPv6_ICMPv6_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <stdint.h>
|
|
#include <semaphore.h>
|
|
#include <queue.h>
|
|
#include <assert.h>
|
|
|
|
#include <nuttx/mm/iob.h>
|
|
#include <nuttx/net/ip.h>
|
|
#include <nuttx/net/netdev.h>
|
|
|
|
#if defined(CONFIG_NET_ICMPv6) && !defined(CONFIG_NET_ICMPv6_NO_STACK)
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
#define NET_ICMPv6_HAVE_STACK 1
|
|
|
|
/* Allocate a new ICMPv6 data callback */
|
|
|
|
#define icmpv6_callback_alloc(dev, conn) \
|
|
devif_callback_alloc((dev), &(conn)->list)
|
|
#define icmpv6_callback_free(dev, conn, cb) \
|
|
devif_conn_callback_free((dev), (cb), &(conn)->list)
|
|
|
|
/****************************************************************************
|
|
* Public Type Definitions
|
|
****************************************************************************/
|
|
|
|
struct net_driver_s; /* Forward reference */
|
|
struct socket; /* Forward reference */
|
|
struct sockaddr; /* Forward reference */
|
|
struct pollfd; /* Forward reference */
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_SOCKET
|
|
/* Representation of a IPPROTO_ICMP socket connection */
|
|
|
|
struct devif_callback_s; /* Forward reference */
|
|
|
|
/* This is a container that holds the poll-related information */
|
|
|
|
struct icmpv6_poll_s
|
|
{
|
|
FAR struct socket *psock; /* IPPROTO_ICMP6 socket structure */
|
|
FAR struct pollfd *fds; /* Needed to handle poll events */
|
|
FAR struct devif_callback_s *cb; /* Needed to teardown the poll */
|
|
};
|
|
|
|
struct icmpv6_conn_s
|
|
{
|
|
/* Common prologue of all connection structures. */
|
|
|
|
dq_entry_t node; /* Supports a double linked list */
|
|
|
|
/* This is a list of ICMPV6 callbacks. Each callback represents a thread
|
|
* that is stalled, waiting for a device-specific event.
|
|
*/
|
|
|
|
FAR struct devif_callback_s *list;
|
|
|
|
/* ICMPv6-specific content follows */
|
|
|
|
uint16_t id; /* ICMPv6 ECHO request ID */
|
|
uint8_t nreqs; /* Number of requests with no response received */
|
|
uint8_t crefs; /* Reference counts on this instance */
|
|
|
|
/* The device that the ICMPv6 request was sent on */
|
|
|
|
FAR struct net_driver_s *dev; /* Needed to free the callback structure */
|
|
|
|
/* ICMPv6 response read-ahead list. A singly linked list of type struct
|
|
* iob_qentry_s where the ICMPv6 read-ahead data for the current ID is
|
|
* retained.
|
|
*/
|
|
|
|
struct iob_queue_s readahead; /* Read-ahead buffering */
|
|
|
|
/* The following is a list of poll structures of threads waiting for
|
|
* socket events.
|
|
*/
|
|
|
|
struct icmpv6_poll_s pollinfo[CONFIG_NET_ICMPv6_NPOLLWAITERS];
|
|
};
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_NEIGHBOR
|
|
/* Used to notify a thread waiting for a particular Neighbor Advertisement */
|
|
|
|
struct icmpv6_notify_s
|
|
{
|
|
FAR struct icmpv6_notify_s *nt_flink; /* Supports singly linked list */
|
|
net_ipv6addr_t nt_ipaddr; /* Waited for IP address in the mapping */
|
|
sem_t nt_sem; /* Will wake up the waiter */
|
|
int nt_result; /* The result of the wait */
|
|
};
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
|
|
/* Used to notify a thread waiting for a particular Router Advertisement */
|
|
|
|
struct icmpv6_rnotify_s
|
|
{
|
|
FAR struct icmpv6_rnotify_s *rn_flink; /* Supports singly linked list */
|
|
char rn_ifname[IFNAMSIZ]; /* Device name */
|
|
sem_t rn_sem; /* Will wake up the waiter */
|
|
int rn_result; /* The result of the wait */
|
|
};
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
# define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
# define EXTERN extern
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_SOCKET
|
|
/* PF_INET6 socket address family, IPPROTO_ICMP6 protocol interface */
|
|
|
|
EXTERN const struct sock_intf_s g_icmpv6_sockif;
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_input
|
|
*
|
|
* Description:
|
|
* Handle incoming ICMPv6 input
|
|
*
|
|
* Input Parameters:
|
|
* dev - The device driver structure containing the received ICMPv6
|
|
* packet
|
|
* iplen - The size of the IPv6 header. This may be larger than
|
|
* IPv6_HDRLEN the IPv6 header if IPv6 extension headers are
|
|
* present.
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
* Assumptions:
|
|
* The network is locked.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void icmpv6_input(FAR struct net_driver_s *dev, unsigned int iplen);
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_neighbor
|
|
*
|
|
* Description:
|
|
* The icmpv6_solicit() call may be to send an ICMPv6 Neighbor
|
|
* Solicitation to resolve an IPv6 address. This function first checks if
|
|
* the IPv6 address is already in the Neighbor Table. If so, then it
|
|
* returns success immediately.
|
|
*
|
|
* If the requested IPv6 address in not in the Neighbor Table, then this
|
|
* function will send the Neighbor Solicitation, delay, then check if the
|
|
* IP address is now in the Neighbor able. It will repeat this sequence
|
|
* until either (1) the IPv6 address mapping is now in the Neighbor table,
|
|
* or (2) a configurable number of timeouts occur without receiving the
|
|
* ICMPv6 Neighbor Advertisement.
|
|
*
|
|
* Input Parameters:
|
|
* ipaddr The IPv6 address to be queried.
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) is returned on success and the IP address mapping can now be
|
|
* found in the Neighbor Table. On error a negated errno value is returned:
|
|
*
|
|
* -ETIMEDOUT: The number or retry counts has been exceed.
|
|
* -EHOSTUNREACH: Could not find a route to the host
|
|
*
|
|
* Assumptions:
|
|
* This function is called from the normal tasking context.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_NEIGHBOR
|
|
int icmpv6_neighbor(const net_ipv6addr_t ipaddr);
|
|
#else
|
|
# define icmpv6_neighbor(i) (0)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_poll
|
|
*
|
|
* Description:
|
|
* Poll a UDP "connection" structure for availability of ICMPv6 TX data
|
|
*
|
|
* Input Parameters:
|
|
* dev - The device driver structure to use in the send operation
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
* Assumptions:
|
|
* The network is locked.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#if defined(CONFIG_NET_ICMPv6_SOCKET) || defined(CONFIG_NET_ICMPv6_NEIGHBOR)
|
|
void icmpv6_poll(FAR struct net_driver_s *dev,
|
|
FAR struct icmpv6_conn_s *conn);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_solicit
|
|
*
|
|
* Description:
|
|
* Set up to send an ICMPv6 Neighbor Solicitation message
|
|
*
|
|
* Input Parameters:
|
|
* dev - Reference to a device driver structure
|
|
* ipaddr - IP address of Neighbor to be solicited
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
void icmpv6_solicit(FAR struct net_driver_s *dev,
|
|
FAR const net_ipv6addr_t ipaddr);
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_rsolicit
|
|
*
|
|
* Description:
|
|
* Set up to send an ICMPv6 Router Solicitation message. This version
|
|
* is for a standalone solicitation. If formats:
|
|
*
|
|
* - The IPv6 header
|
|
* - The ICMPv6 Neighbor Router Message
|
|
*
|
|
* The device IP address should have been set to the link local address
|
|
* prior to calling this function.
|
|
*
|
|
* Input Parameters:
|
|
* dev - Reference to a device driver structure
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
|
|
void icmpv6_rsolicit(FAR struct net_driver_s *dev);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_advertise
|
|
*
|
|
* Description:
|
|
* Send an ICMPv6 Neighbor Advertisement
|
|
*
|
|
* Input Parameters:
|
|
* dev - The device driver structure containing the outgoing ICMPv6 packet
|
|
* buffer
|
|
*
|
|
* Returned Value:
|
|
* None.
|
|
*
|
|
* Assumptions:
|
|
* The network is locked
|
|
*
|
|
****************************************************************************/
|
|
|
|
void icmpv6_advertise(FAR struct net_driver_s *dev,
|
|
const net_ipv6addr_t destipaddr);
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_radvertise
|
|
*
|
|
* Description:
|
|
* Send an ICMPv6 Router Advertisement
|
|
*
|
|
* Input Parameters:
|
|
* dev - The device driver structure containing the outgoing ICMPv6 packet
|
|
* buffer
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
* Assumptions:
|
|
* The network is locked
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_ROUTER
|
|
void icmpv6_radvertise(FAR struct net_driver_s *dev);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_wait_setup
|
|
*
|
|
* Description:
|
|
* Called BEFORE an Neighbor Solicitation is sent. This function sets up
|
|
* the Neighbor Advertisement timeout before the Neighbor Solicitation
|
|
* is sent so that there is no race condition when icmpv6_wait() is called.
|
|
*
|
|
* Assumptions:
|
|
* This function is called from icmpv6_neighbor() and executes in the normal
|
|
* tasking environment.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_NEIGHBOR
|
|
void icmpv6_wait_setup(const net_ipv6addr_t ipaddr,
|
|
FAR struct icmpv6_notify_s *notify);
|
|
#else
|
|
# define icmpv6_wait_setup(i,n)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_wait_cancel
|
|
*
|
|
* Description:
|
|
* Cancel any wait set after icmpv6_wait_setup is called but before
|
|
* icmpv6_wait()is called (icmpv6_wait() will automatically cancel the
|
|
* wait).
|
|
*
|
|
* Assumptions:
|
|
* This function may execute in the interrupt context when called from
|
|
* icmpv6_wait().
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_NEIGHBOR
|
|
int icmpv6_wait_cancel(FAR struct icmpv6_notify_s *notify);
|
|
#else
|
|
# define icmpv6_wait_cancel(n) (0)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_wait
|
|
*
|
|
* Description:
|
|
* Called each time that a Neighbor Solicitation is sent. This function
|
|
* will sleep until either: (1) the matching Neighbor Advertisement is
|
|
* received, or (2) a timeout occurs.
|
|
*
|
|
* Assumptions:
|
|
* This function is called from icmpv6_neighbor() and must execute with
|
|
* the network un-locked (interrupts may be disabled to keep the things
|
|
* stable).
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_NEIGHBOR
|
|
int icmpv6_wait(FAR struct icmpv6_notify_s *notify, unsigned int timeout);
|
|
#else
|
|
# define icmpv6_wait(n,t) (0)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_notify
|
|
*
|
|
* Description:
|
|
* Called each time that a Neighbor Advertisement is received in order to
|
|
* wake-up any threads that may be waiting for this particular Neighbor
|
|
* Advertisement.
|
|
*
|
|
* Assumptions:
|
|
* This function is called from the MAC device driver indirectly through
|
|
* icmpv6_icmpv6in() will execute with the network locked.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_NEIGHBOR
|
|
void icmpv6_notify(net_ipv6addr_t ipaddr);
|
|
#else
|
|
# define icmpv6_notify(i)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_autoconfig
|
|
*
|
|
* Description:
|
|
* Perform IPv6 auto-configuration to assign an IPv6 address to this
|
|
* device.
|
|
*
|
|
* Input Parameters:
|
|
* dev - The device driver structure to assign the address to
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) is returned on success; A negated errno value is returned on
|
|
* any failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
|
|
int icmpv6_autoconfig(FAR struct net_driver_s *dev);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_rwait_setup
|
|
*
|
|
* Description:
|
|
* Called BEFORE an Router Solicitation is sent. This function sets up
|
|
* the Router Advertisement timeout before the Router Solicitation
|
|
* is sent so that there is no race condition when icmpv6_rwait() is
|
|
* called.
|
|
*
|
|
* Assumptions:
|
|
* This function is called from icmpv6_autoconfig() and executes in the
|
|
* normal tasking environment.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
|
|
void icmpv6_rwait_setup(FAR struct net_driver_s *dev,
|
|
FAR struct icmpv6_rnotify_s *notify);
|
|
#else
|
|
# define icmpv6_rwait_setup(d,n)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_rwait_cancel
|
|
*
|
|
* Description:
|
|
* Cancel any wait set after icmpv6_rwait_setup() is called but before
|
|
* icmpv6_rwait()is called (icmpv6_rwait() will automatically cancel the
|
|
* wait).
|
|
*
|
|
* Assumptions:
|
|
* This function may execute in the interrupt context when called from
|
|
* icmpv6_rwait().
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
|
|
int icmpv6_rwait_cancel(FAR struct icmpv6_rnotify_s *notify);
|
|
#else
|
|
# define icmpv6_rwait_cancel(n) (0)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_rwait
|
|
*
|
|
* Description:
|
|
* Called each time that a Router Solicitation is sent. This function
|
|
* will sleep until either: (1) the matching Router Advertisement is
|
|
* received, or (2) a timeout occurs.
|
|
*
|
|
* Assumptions:
|
|
* This function is called from icmpv6_autoconfig() and must execute with
|
|
* the network un-locked (interrupts may be disabled to keep the things
|
|
* stable).
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
|
|
int icmpv6_rwait(FAR struct icmpv6_rnotify_s *notify, unsigned int timeout);
|
|
#else
|
|
# define icmpv6_rwait(n,t) (0)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_rnotify
|
|
*
|
|
* Description:
|
|
* Called each time that a Router Advertisement is received in order to
|
|
* wake-up any threads that may be waiting for this particular Router
|
|
* Advertisement.
|
|
*
|
|
* Assumptions:
|
|
* This function is called from the MAC device driver indirectly through
|
|
* icmpv6_icmpv6in() will execute with the network locked.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
|
|
void icmpv6_rnotify(FAR struct net_driver_s *dev, const net_ipv6addr_t draddr,
|
|
const net_ipv6addr_t prefix, unsigned int preflen);
|
|
#else
|
|
# define icmpv6_rnotify(d,p,l)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_sock_initialize
|
|
*
|
|
* Description:
|
|
* Initialize the IPPROTO_ICMP socket connection structures. Called once
|
|
* and only from the network initialization layer.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_SOCKET
|
|
void icmpv6_sock_initialize(void);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_alloc
|
|
*
|
|
* Description:
|
|
* Allocate a new, uninitialized IPPROTO_ICMP socket connection structure.
|
|
* This is normally something done by the implementation of the socket()
|
|
* interface.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_SOCKET
|
|
FAR struct icmpv6_conn_s *icmpv6_alloc(void);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_free
|
|
*
|
|
* Description:
|
|
* Free a IPPROTO_ICMP socket connection structure that is no longer in
|
|
* use. This should be done by the implementation of close().
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_SOCKET
|
|
void icmpv6_free(FAR struct icmpv6_conn_s *conn);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_active()
|
|
*
|
|
* Description:
|
|
* Find a connection structure that is the appropriate connection to be
|
|
* used with the provided ECHO request ID.
|
|
*
|
|
* Assumptions:
|
|
* This function is called from network logic at with the network locked.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_SOCKET
|
|
FAR struct icmpv6_conn_s *icmpv6_active(uint16_t id);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_nextconn
|
|
*
|
|
* Description:
|
|
* Traverse the list of allocated packet connections
|
|
*
|
|
* Assumptions:
|
|
* This function is called from network logic at with the network locked.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_SOCKET
|
|
FAR struct icmpv6_conn_s *icmpv6_nextconn(FAR struct icmpv6_conn_s *conn);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_findconn
|
|
*
|
|
* Description:
|
|
* Find an ICMPv6 connection structure that is expecting a ICMPv6 ECHO response
|
|
* with this ID from this device
|
|
*
|
|
* Assumptions:
|
|
* This function is called from network logic at with the network locked.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_SOCKET
|
|
FAR struct icmpv6_conn_s *icmpv6_findconn(FAR struct net_driver_s *dev,
|
|
uint16_t id);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_sendto
|
|
*
|
|
* Description:
|
|
* Implements the sendto() operation for the case of the IPPROTO_ICMP6
|
|
* socket. The 'buf' parameter points to a block of memory that includes
|
|
* an ICMPv6 request header, followed by any payload that accompanies the
|
|
* request. The 'len' parameter includes both the size of the ICMPv6
|
|
* header and the following payload.
|
|
*
|
|
* Input Parameters:
|
|
* psock A pointer to a NuttX-specific, internal socket structure
|
|
* buf Data to send
|
|
* len Length of data to send
|
|
* flags Send flags
|
|
* to Address of recipient
|
|
* tolen The length of the address structure
|
|
*
|
|
* Returned Value:
|
|
* On success, returns the number of characters sent. On error, a negated
|
|
* errno value is returned (see send_to() for the list of appropriate error
|
|
* values.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_SOCKET
|
|
ssize_t icmpv6_sendto(FAR struct socket *psock, FAR const void *buf, size_t len,
|
|
int flags, FAR const struct sockaddr *to, socklen_t tolen);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_recvfrom
|
|
*
|
|
* Description:
|
|
* Implements the socket recvfrom interface for the case of the AF_INET6
|
|
* data gram socket with the IPPROTO_ICMP6 protocol. icmpv6_recvfrom()
|
|
* receives ICMPv6 ECHO replies for the a socket.
|
|
*
|
|
* If 'from' is not NULL, and the underlying protocol provides the source
|
|
* address, this source address is filled in. The argument 'fromlen' is
|
|
* initialized to the size of the buffer associated with from, and
|
|
* modified on return to indicate the actual size of the address stored
|
|
* there.
|
|
*
|
|
* Input Parameters:
|
|
* psock A pointer to a NuttX-specific, internal socket structure
|
|
* buf Buffer to receive data
|
|
* len Length of buffer
|
|
* flags Receive flags
|
|
* from Address of source (may be NULL)
|
|
* fromlen The length of the address structure
|
|
*
|
|
* Returned Value:
|
|
* On success, returns the number of characters received. If no data is
|
|
* available to be received and the peer has performed an orderly shutdown,
|
|
* recv() will return 0. Otherwise, on errors, a negated errno value is
|
|
* returned (see recvfrom() for the list of appropriate error values).
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_SOCKET
|
|
ssize_t icmpv6_recvfrom(FAR struct socket *psock, FAR void *buf, size_t len,
|
|
int flags, FAR struct sockaddr *from,
|
|
FAR socklen_t *fromlen);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_pollsetup
|
|
*
|
|
* Description:
|
|
* Setup to monitor events on one ICMPv6 socket
|
|
*
|
|
* Input Parameters:
|
|
* psock - The IPPROTO_ICMP6 socket of interest
|
|
* fds - The structure describing the events to be monitored, OR NULL if
|
|
* this is a request to stop monitoring events.
|
|
*
|
|
* Returned Value:
|
|
* 0: Success; Negated errno on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_SOCKET
|
|
int icmpv6_pollsetup(FAR struct socket *psock, FAR struct pollfd *fds);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_pollteardown
|
|
*
|
|
* Description:
|
|
* Teardown monitoring of events on an ICMPv6 socket
|
|
*
|
|
* Input Parameters:
|
|
* psock - The IPPROTO_ICMP6 socket of interest
|
|
* fds - The structure describing the events to be monitored, OR NULL if
|
|
* this is a request to stop monitoring events.
|
|
*
|
|
* Returned Value:
|
|
* 0: Success; Negated errno on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_ICMPv6_SOCKET
|
|
int icmpv6_pollteardown(FAR struct socket *psock, FAR struct pollfd *fds);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: icmpv6_linkipaddr
|
|
*
|
|
* Description:
|
|
* Generate the device link scope ipv6 address as below:
|
|
* 128 112 96 80 64 48 32 16
|
|
* ---- ---- ---- ---- ---- ---- ---- ----
|
|
* fe80 0000 0000 0000 0000 00ff fe00 xx00 1-byte short address IEEE 48-bit MAC
|
|
* fe80 0000 0000 0000 0000 00ff fe00 xxxx 2-byte short address IEEE 48-bit MAC
|
|
* fe80 0000 0000 0000 xxxx xxff fexx xxxx 6-byte normal address IEEE 48-bit MAC
|
|
* fe80 0000 0000 0000 xxxx xxxx xxxx xxxx 8-byte extended address IEEE EUI-64
|
|
*
|
|
* Input Parameters:
|
|
* dev - The device driver structure containing the link layer address
|
|
* ipaddr - Receive the device link scope ipv6 address
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
void icmpv6_linkipaddr(FAR struct net_driver_s *dev, net_ipv6addr_t ipaddr);
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* CONFIG_NET_ICMPv6 && !CONFIG_NET_ICMPv6_NO_STACK */
|
|
#endif /* __NET_ICMPv6_ICMPv6_H */
|
|
|