Main uIPv6 files addition - more
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207
core/net/uip-netif.h
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207
core/net/uip-netif.h
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/**
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* \addtogroup uip6
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* @{
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*/
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/**
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* \file
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* Network interface and stateless autoconfiguration (RFC 4862)
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* \author Mathilde Durvy <mdurvy@cisco.com>
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* \author Julien Abeille <jabeille@cisco.com>
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*
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*/
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/*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*
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*/
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#ifndef __UIP_NETIF_H__
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#define __UIP_NETIF_H__
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#include "net/uip-nd6.h"
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#ifndef UIP_CONF_NETIF_MAX_ADDRESSES
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#define UIP_CONF_NETIF_MAX_ADDRESSES 2
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#endif /*UIP_CONF_NETIF_MAX_ADDRESSES*/
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/**
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* \brief Possible states for the address of an interface (RFC 4862 autoconf +
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* NOT_USED + INFINITE)
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*/
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typedef enum {
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NOT_USED = -1,
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TENTATIVE = 0,
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PREFERRED = 1,
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DEPRECATED = 2, /* not needed if we don't use pliffetime in prefix struct */
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} uip_netif_state;
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/**
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* \brief How the address was acquired: Autoconf, DHCP or manually
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*
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*/
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typedef enum {
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AUTOCONF = 1,
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DHCP = 2,
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MANUAL = 3
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} uip_netif_type;
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/**
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* \brief An address structure for an interface
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*
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* Contains an ip address assigned to the interface, and its state.
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*/
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struct uip_netif_addr {
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uip_ipaddr_t ipaddr;
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uip_netif_state state;
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struct timer vlifetime;
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u8_t is_infinite;
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uip_netif_type type;
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};
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/** \brief Interface structure (contains all the interface variables) */
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struct uip_netif {
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u32_t link_mtu;
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u8_t cur_hop_limit;
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u32_t base_reachable_time; /* in msec */
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u32_t reachable_time; /* in msec */
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u32_t retrans_timer; /* in msec */
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u8_t dup_addr_detect_transmit;
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/** Note: the link-local address is at position 0 */
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struct uip_netif_addr addresses[UIP_CONF_NETIF_MAX_ADDRESSES];
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uip_ipaddr_t solicited_node_mcastaddr;
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};
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/*---------------------------------------------------------------------------*/
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extern struct uip_netif uip_netif_physical_if;
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extern struct etimer uip_netif_timer_dad;
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extern struct etimer uip_netif_timer_rs;
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extern struct etimer uip_netif_timer_periodic;
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/*---------------------------------------------------------------------------*/
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/** \brief Initialize the network interfac and run stateless autoconf */
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void uip_netif_init(void);
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/**
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* \brief periodically check the state of the addresses.
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*/
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void uip_netif_periodic(void);
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/**
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* \brief recompute random reachable timer
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* \return the new value for timer
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*/
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u32_t uip_netif_compute_reachable_time(void);
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/**
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* \brief Check if an unicast address is attached to my interface
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* \param ipaddr an IP address to be checked
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* \return 1 if address is attached to my interface (otherwise false)
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*/
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#define uip_netif_is_addr_my_unicast(a) (uip_netif_addr_lookup(a, 128, 0) != NULL)
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/**
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* \brief Check if this is my solicited-node multicast address
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* \param ipaddr an IP address to be checked
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* \return 1 if the address is my solicited-node (otherwise false)
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*/
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u8_t uip_netif_is_addr_my_solicited(uip_ipaddr_t *ipaddr);
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/**
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* \brief Autoconfigure and add an address corresponding to a specific prefix
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* \param ipaddr the prefix if we are doing autoconf, the address for DHCP and manual
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* \param length the prefix length if autoconf, 0 for DHCP and manual
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* \param vlifetime valid lifetime of the address, 0 if the address has INFINITE lifetime,
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* non 0 otherwise
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* \param type AUTOCONF or MANUAL or DHCP
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*/
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void uip_netif_addr_add(uip_ipaddr_t *ipaddr, u8_t length, clock_time_t vlifetime, uip_netif_type type);
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/**
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* \brief Set the 8 last bytes of the IP address
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* based on the L2 identifier using autoconf
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* \param *ipaddr the IP address to be completed with layer 2 info
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* \param *lladdr the L2 address
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*/
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void uip_netif_addr_autoconf_set(uip_ipaddr_t *ipaddr, uip_lladdr_t *lladdr);
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/**
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* \brief Lookup an address
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* \param ipaddr the prefix if we are looking for an autoconf address, the address otherwise
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* \param length the prefix length if we are looking for autoconf address, 128 otherwise
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* \param type AUTOCONF or MANUAL or DHCP or 0
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*
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*
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* If we are looking for an AUTOCONFIGURED address, ipaddr is a prefix
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* length is its length, type is AUTOCONF.
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* Otherwise ipaddr is a full address, length must be 128, type is MANUAL
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* or DHCP.
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* Note: if we do not care about the type, type MUST be 0
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*/
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struct uip_netif_addr *
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uip_netif_addr_lookup(uip_ipaddr_t *ipaddr, u8_t length, uip_netif_type type);
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/**
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* \brief Select the appropriate source address for a packet
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* \param ipaddr the selected address (returned value)
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* \param ipaddr the destination of the packet
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*/
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void uip_netif_select_src(uip_ipaddr_t *src, uip_ipaddr_t *dst);
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/**
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* \brief Schedule DAD for a given address
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* \param ifaddr the address for which schedule DAD
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*/
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void uip_netif_sched_dad(struct uip_netif_addr *ifaddr);
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/**
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* \brief Perform DAD (i.e. Duplicate Address Detection)
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*/
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void uip_netif_dad(void);
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/**
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* \brief DAD failed, should never happen!
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* \param ipaddr the address for which DAD failed
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*/
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void uip_netif_dad_failed(uip_ipaddr_t *ipaddr);
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/**
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* \brief Schedule the sending of RS
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*/
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void uip_netif_sched_send_rs(void);
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/**
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* \brief Send up to MAX_RTR_SOLICITATION_DELAY RS separated by a delay of
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* RTR_SOLICITATION_INTERVAL
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*/
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void uip_netif_send_rs(void);
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#endif
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/** @} */
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