efe65749ce
Squashed commit of the following:
sched/sched/sched_getsockets.c: Fix an error in conditional compilation.
fs/: Remove all conditional logic based on CONFIG_NSOCKET_DESCRIPTORS == 0
Documentation/: Remove all references to CONFIG_NSOCKET_DESCRIPTORS == 0
include/: Remove all conditional logic based on CONFIG_NSOCKET_DESCRIPTORS == 0
libs/: Remove all conditional logic based on CONFIG_NSOCKET_DESCRIPTORS == 0
net/: Remove all conditional logic based on CONFIG_NSOCKET_DESCRIPTORS == 0
sched/: Remove all conditional logic based on CONFIG_NSOCKET_DESCRIPTORS == 0
syscall/: Remove all conditional logic based on CONFIG_NSOCKET_DESCRIPTORS == 0
tools/: Fixups for CONFIG_NSOCKET_DESCRIPTORS no longer used to disable sockets.
568 lines
18 KiB
C
568 lines
18 KiB
C
/****************************************************************************
|
|
* net/netdev/netdev.h
|
|
*
|
|
* Copyright (C) 2014-2015, 2018 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_NETDEV_NETDEV_H
|
|
#define __NET_NETDEV_NETDEV_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <stdbool.h>
|
|
|
|
#include <nuttx/net/ip.h>
|
|
|
|
#ifdef CONFIG_NETDOWN_NOTIFIER
|
|
# include <nuttx/wqueue.h>
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* If CONFIG_NETDEV_IFINDEX is enabled then there is limit to the number of
|
|
* devices that can be registered due to the nature of some static data.
|
|
*/
|
|
|
|
#define MAX_IFINDEX 32
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/* List of registered Ethernet device drivers. You must have the network
|
|
* locked in order to access this list.
|
|
*
|
|
* NOTE that this duplicates a declaration in net/tcp/tcp.h
|
|
*/
|
|
|
|
EXTERN struct net_driver_s *g_netdevices;
|
|
|
|
#ifdef CONFIG_NETDEV_IFINDEX
|
|
/* The set of network devices that have been registered. This is used to
|
|
* assign a unique device index to the newly registered device.
|
|
*
|
|
* REVISIT: The width of g_nassigned limits the number of registered
|
|
* devices to 32 (MAX_IFINDEX).
|
|
*/
|
|
|
|
EXTERN uint32_t g_devset;
|
|
|
|
/* The set of network devices that have been freed. The purpose of this
|
|
* set is to postpone reuse of a interface index for as long as possible,
|
|
* i.e., don't reuse an interface index until all of the possible indices
|
|
* have been used.
|
|
*/
|
|
|
|
EXTERN uint32_t g_devfreed;
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/* Callback from netdev_foreach() */
|
|
|
|
struct net_driver_s; /* Forward reference */
|
|
typedef int (*netdev_callback_t)(FAR struct net_driver_s *dev, FAR void *arg);
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_ifup / netdev_ifdown
|
|
*
|
|
* Description:
|
|
* Bring the interface up/down
|
|
*
|
|
****************************************************************************/
|
|
|
|
void netdev_ifup(FAR struct net_driver_s *dev);
|
|
void netdev_ifdown(FAR struct net_driver_s *dev);
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_verify
|
|
*
|
|
* Description:
|
|
* Verify that the specified device still exists
|
|
*
|
|
* Assumptions:
|
|
* The caller has locked the network.
|
|
*
|
|
****************************************************************************/
|
|
|
|
bool netdev_verify(FAR struct net_driver_s *dev);
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_findbyname
|
|
*
|
|
* Description:
|
|
* Find a previously registered network device using its assigned
|
|
* network interface name
|
|
*
|
|
* Input Parameters:
|
|
* ifname The interface name of the device of interest
|
|
*
|
|
* Returned Value:
|
|
* Pointer to driver on success; null on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
FAR struct net_driver_s *netdev_findbyname(FAR const char *ifname);
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_foreach
|
|
*
|
|
* Description:
|
|
* Enumerate each registered network device.
|
|
*
|
|
* NOTE: netdev semaphore held throughout enumeration.
|
|
*
|
|
* Input Parameters:
|
|
* callback - Will be called for each registered device
|
|
* arg - User argument passed to callback()
|
|
*
|
|
* Returned Value:
|
|
* 0:Enumeration completed 1:Enumeration terminated early by callback
|
|
*
|
|
****************************************************************************/
|
|
|
|
int netdev_foreach(netdev_callback_t callback, FAR void *arg);
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_findby_lipv4addr
|
|
*
|
|
* Description:
|
|
* Find a previously registered network device by matching a local address
|
|
* with the subnet served by the device. Only "up" devices are considered
|
|
* (since a "down" device has no meaningful address).
|
|
*
|
|
* Input Parameters:
|
|
* lipaddr - Local, IPv4 address assigned to the network device. Or any
|
|
* IPv4 address on the sub-net served by the network device.
|
|
*
|
|
* Returned Value:
|
|
* Pointer to driver on success; null on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_IPv4
|
|
FAR struct net_driver_s *netdev_findby_lipv4addr(in_addr_t lipaddr);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_findby_lipv6addr
|
|
*
|
|
* Description:
|
|
* Find a previously registered network device by matching a local address
|
|
* with the subnet served by the device. Only "up" devices are considered
|
|
* (since a "down" device has no meaningful address).
|
|
*
|
|
* Input Parameters:
|
|
* lipaddr - Local, IPv6 address assigned to the network device. Or any
|
|
* IPv6 address on the sub-net served by the network device.
|
|
*
|
|
* Returned Value:
|
|
* Pointer to driver on success; null on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
FAR struct net_driver_s *netdev_findby_lipv6addr(const net_ipv6addr_t lipaddr);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_findby_ripv4addr
|
|
*
|
|
* Description:
|
|
* Find a previously registered network device by matching the remote
|
|
* IPv4 address that can be reached by the device.
|
|
*
|
|
* Input Parameters:
|
|
* lipaddr - Local, bound address of a connection (used only if ripaddr is
|
|
* the broadcast address).
|
|
* ripaddr - Remote address of a connection to use in the lookup
|
|
*
|
|
* Returned Value:
|
|
* Pointer to driver on success; null on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_IPv4
|
|
FAR struct net_driver_s *netdev_findby_ripv4addr(in_addr_t lipaddr,
|
|
in_addr_t ripaddr);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_findby_ripv6addr
|
|
*
|
|
* Description:
|
|
* Find a previously registered network device by matching the remote
|
|
* IPv6 address that can be reached by the device.
|
|
*
|
|
* Input Parameters:
|
|
* lipaddr - Local, bound address of a connection (used only if ripaddr is
|
|
* a multicast address).
|
|
* ripaddr - Remote address of a connection to use in the lookup
|
|
*
|
|
* Returned Value:
|
|
* Pointer to driver on success; null on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
FAR struct net_driver_s *netdev_findby_ripv6addr(const net_ipv6addr_t lipaddr,
|
|
const net_ipv6addr_t ripaddr);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_findbyindex
|
|
*
|
|
* Description:
|
|
* Find a previously registered network device by assigned interface index.
|
|
*
|
|
* Input Parameters:
|
|
* ifindex - The interface index. This is a one-based index and must be
|
|
* greater than zero.
|
|
*
|
|
* Returned Value:
|
|
* Pointer to driver on success; NULL on failure. This function will return
|
|
* NULL only if there is no device corresponding to the provided index.
|
|
*
|
|
****************************************************************************/
|
|
|
|
FAR struct net_driver_s *netdev_findbyindex(int ifindex);
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_nextindex
|
|
*
|
|
* Description:
|
|
* Return the interface index to the next valid device.
|
|
*
|
|
* Input Parameters:
|
|
* ifindex - The first interface index to check. Usually in a traversal
|
|
* this would be the previous interface index plus 1.
|
|
*
|
|
* Returned Value:
|
|
* The interface index for the next network driver. -ENODEV is returned if
|
|
* there are no further devices with assigned interface indices.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NETDEV_IFINDEX
|
|
int netdev_nextindex(int ifindex);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_indextoname
|
|
*
|
|
* Description:
|
|
* The if_indextoname() function maps an interface index to its
|
|
* corresponding name.
|
|
*
|
|
* Input Parameters:
|
|
* ifname - Points to a buffer of at least IF_NAMESIZE bytes.
|
|
* if_indextoname() will place in this buffer the name of the
|
|
* interface with index ifindex.
|
|
*
|
|
* Returned Value:
|
|
* If ifindex is an interface index, then the function will return zero
|
|
* (OK). Otherwise, the function returns a negated errno value;
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NETDEV_IFINDEX
|
|
int netdev_indextoname(unsigned int ifindex, FAR char *ifname);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_nametoindex
|
|
*
|
|
* Description:
|
|
* The if_nametoindex() function returns the interface index corresponding
|
|
* to name ifname.
|
|
*
|
|
* Input Parameters:
|
|
* ifname - The interface name
|
|
*
|
|
* Returned Value:
|
|
* The corresponding index if ifname is the name of an interface;
|
|
* otherwise, a negated errno value is returned.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NETDEV_IFINDEX
|
|
unsigned int netdev_nametoindex(FAR const char *ifname);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_default
|
|
*
|
|
* Description:
|
|
* Return the default network device. REVISIT: At present this function
|
|
* arbitrarily returns the first UP device at the head of the device
|
|
* list. Perhaps the default device should be a device name
|
|
* configuration option?
|
|
*
|
|
* So why is this here: It represents my current though for what to do
|
|
* if a socket is connected with INADDY_ANY. In this case, I suppose we
|
|
* should use the IP address associated with some default device???
|
|
*
|
|
* Input Parameters:
|
|
* NULL
|
|
*
|
|
* Returned Value:
|
|
* Pointer to default network driver on success; null on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
FAR struct net_driver_s *netdev_default(void);
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_ipv4_txnotify
|
|
*
|
|
* Description:
|
|
* Notify the device driver that forwards the IPv4 address that new TX
|
|
* data is available.
|
|
*
|
|
* Input Parameters:
|
|
* lipaddr - The local address bound to the socket
|
|
* ripaddr - The remote address to send the data
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_IPv4
|
|
void netdev_ipv4_txnotify(in_addr_t lipaddr, in_addr_t ripaddr);
|
|
#endif /* CONFIG_NET_IPv4 */
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_ipv6_txnotify
|
|
*
|
|
* Description:
|
|
* Notify the device driver that forwards the IPv4 address that new TX
|
|
* data is available.
|
|
*
|
|
* Input Parameters:
|
|
* lipaddr - The local address bound to the socket
|
|
* ripaddr - The remote address to send the data
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
void netdev_ipv6_txnotify(FAR const net_ipv6addr_t lipaddr,
|
|
FAR const net_ipv6addr_t ripaddr);
|
|
#endif /* CONFIG_NET_IPv6 */
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_txnotify_dev
|
|
*
|
|
* Description:
|
|
* Notify the device driver that new TX data is available. This variant
|
|
* would be called when the upper level logic already understands how the
|
|
* packet will be routed.
|
|
*
|
|
* Input Parameters:
|
|
* dev - The network device driver state structure.
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
void netdev_txnotify_dev(FAR struct net_driver_s *dev);
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_count
|
|
*
|
|
* Description:
|
|
* Return the number of network devices
|
|
*
|
|
* Input Parameters:
|
|
* None
|
|
*
|
|
* Returned Value:
|
|
* The number of network devices
|
|
*
|
|
****************************************************************************/
|
|
|
|
int netdev_count(void);
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_ipv4_ifconf
|
|
*
|
|
* Description:
|
|
* Return the IPv4 configuration of each network adapter
|
|
*
|
|
* Input Parameters:
|
|
* ifc - A reference to the instance of struct ifconf in which to return
|
|
* the information.
|
|
*
|
|
* Returned Value:
|
|
* Zero is returned on success; a negated errno value is returned on any
|
|
* failure.
|
|
*
|
|
* Assumptions:
|
|
* The nework is locked
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_IPv4
|
|
struct ifconf; /* Forward reference */
|
|
int netdev_ipv4_ifconf(FAR struct ifconf *ifc);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_ipv6_ifconf
|
|
*
|
|
* Description:
|
|
* Return the IPv6 configuration of each network adapter
|
|
*
|
|
* Input Parameters:
|
|
* lifc - A reference to the instance of struct lifconf in which to return
|
|
* the information.
|
|
*
|
|
* Returned Value:
|
|
* Zero is returned on success; a negated errno value is returned on any
|
|
* failure.
|
|
*
|
|
* Assumptions:
|
|
* The nework is locked
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
struct lifconf; /* Forward reference */
|
|
int netdev_ipv6_ifconf(FAR struct lifconf *lifc);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: netdown_notifier_setup
|
|
*
|
|
* Description:
|
|
* Set up to perform a callback to the worker function the network goes
|
|
* down. The worker function will execute on the high priority worker
|
|
* thread.
|
|
*
|
|
* Input Parameters:
|
|
* worker - The worker function to execute on the high priority work
|
|
* queue when data is available in the UDP readahead buffer.
|
|
* dev - The network driver to be monitored
|
|
* arg - A user-defined argument that will be available to the worker
|
|
* function when it runs.
|
|
* Returned Value:
|
|
* > 0 - The signal notification is in place. The returned value is a
|
|
* key that may be used later in a call to
|
|
* netdown_notifier_teardown().
|
|
* == 0 - The the device is already down. No signal notification will
|
|
* be provided.
|
|
* < 0 - An unexpected error occurred and no signal will be sent. The
|
|
* returned value is a negated errno value that indicates the
|
|
* nature of the failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NETDOWN_NOTIFIER
|
|
int netdown_notifier_setup(worker_t worker, FAR struct net_driver_s *dev,
|
|
FAR void *arg);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: netdown_notifier_teardown
|
|
*
|
|
* Description:
|
|
* Eliminate a network down notification previously setup by
|
|
* netdown_notifier_setup(). This function should only be called if the
|
|
* notification should be aborted prior to the notification. The
|
|
* notification will automatically be torn down after the signal is sent.
|
|
*
|
|
* Input Parameters:
|
|
* key - The key value returned from a previous call to
|
|
* netdown_notifier_setup().
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) is returned on success; a negated errno value is returned on
|
|
* any failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NETDOWN_NOTIFIER
|
|
int netdown_notifier_teardown(int key);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: netdown_notifier_signal
|
|
*
|
|
* Description:
|
|
* A network has gone down has been buffered. Execute worker thread
|
|
* functions for all threads monitoring the state of the device.
|
|
*
|
|
* Input Parameters:
|
|
* dev - The TCP connection where read-ahead data was just buffered.
|
|
*
|
|
* Returned Value:
|
|
* None.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NETDOWN_NOTIFIER
|
|
void netdown_notifier_signal(FAR struct net_driver_s *dev);
|
|
#endif
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __NET_NETDEV_NETDEV_H */
|