netif.h

00001 /**
00002  * @file
00003  * netif API (to be used from TCPIP thread)
00004  */
00005 
00006 /*
00007  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
00008  * All rights reserved.
00009  *
00010  * Redistribution and use in source and binary forms, with or without modification,
00011  * are permitted provided that the following conditions are met:
00012  *
00013  * 1. Redistributions of source code must retain the above copyright notice,
00014  *    this list of conditions and the following disclaimer.
00015  * 2. Redistributions in binary form must reproduce the above copyright notice,
00016  *    this list of conditions and the following disclaimer in the documentation
00017  *    and/or other materials provided with the distribution.
00018  * 3. The name of the author may not be used to endorse or promote products
00019  *    derived from this software without specific prior written permission.
00020  *
00021  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
00022  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
00023  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
00024  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00025  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
00026  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00027  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00028  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
00029  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
00030  * OF SUCH DAMAGE.
00031  *
00032  * This file is part of the lwIP TCP/IP stack.
00033  *
00034  * Author: Adam Dunkels <adam@sics.se>
00035  *
00036  */
00037 #ifndef LWIP_HDR_NETIF_H
00038 #define LWIP_HDR_NETIF_H
00039 
00040 #include "lwip/opt.h"
00041 
00042 #define ENABLE_LOOPBACK (LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF)
00043 
00044 #include "lwip/err.h"
00045 
00046 #include "lwip/ip_addr.h"
00047 
00048 #include "lwip/def.h"
00049 #include "lwip/pbuf.h"
00050 #include "lwip/stats.h"
00051 
00052 #ifdef __cplusplus
00053 extern "C" {
00054 #endif
00055 
00056 /* Throughout this file, IP addresses are expected to be in
00057  * the same byte order as in IP_PCB. */
00058 
00059 /** Must be the maximum of all used hardware address lengths
00060     across all types of interfaces in use.
00061     This does not have to be changed, normally. */
00062 #ifndef NETIF_MAX_HWADDR_LEN
00063 #define NETIF_MAX_HWADDR_LEN 6U
00064 #endif
00065 
00066 /**
00067  * @defgroup netif_flags Flags
00068  * @ingroup netif
00069  * @{
00070  */
00071 
00072 /** Whether the network interface is 'up'. This is
00073  * a software flag used to control whether this network
00074  * interface is enabled and processes traffic.
00075  * It must be set by the startup code before this netif can be used
00076  * (also for dhcp/autoip).
00077  */
00078 #define NETIF_FLAG_UP           0x01U
00079 /** If set, the netif has broadcast capability.
00080  * Set by the netif driver in its init function. */
00081 #define NETIF_FLAG_BROADCAST    0x02U
00082 /** If set, the interface has an active link
00083  *  (set by the network interface driver).
00084  * Either set by the netif driver in its init function (if the link
00085  * is up at that time) or at a later point once the link comes up
00086  * (if link detection is supported by the hardware). */
00087 #define NETIF_FLAG_LINK_UP      0x04U
00088 /** If set, the netif is an ethernet device using ARP.
00089  * Set by the netif driver in its init function.
00090  * Used to check input packet types and use of DHCP. */
00091 #define NETIF_FLAG_ETHARP       0x08U
00092 /** If set, the netif is an ethernet device. It might not use
00093  * ARP or TCP/IP if it is used for PPPoE only.
00094  */
00095 #define NETIF_FLAG_ETHERNET     0x10U
00096 /** If set, the netif has IGMP capability.
00097  * Set by the netif driver in its init function. */
00098 #define NETIF_FLAG_IGMP         0x20U
00099 /** If set, the netif has MLD6 capability.
00100  * Set by the netif driver in its init function. */
00101 #define NETIF_FLAG_MLD6         0x40U
00102 
00103 /**
00104  * @}
00105  */
00106 
00107 enum lwip_internal_netif_client_data_index
00108 {
00109 #if LWIP_DHCP
00110    LWIP_NETIF_CLIENT_DATA_INDEX_DHCP,
00111 #endif
00112 #if LWIP_AUTOIP
00113    LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP,
00114 #endif
00115 #if LWIP_IGMP
00116    LWIP_NETIF_CLIENT_DATA_INDEX_IGMP,
00117 #endif
00118 #if LWIP_IPV6_MLD
00119    LWIP_NETIF_CLIENT_DATA_INDEX_MLD6,
00120 #endif
00121    LWIP_NETIF_CLIENT_DATA_INDEX_MAX
00122 };
00123 
00124 #if LWIP_CHECKSUM_CTRL_PER_NETIF
00125 #define NETIF_CHECKSUM_GEN_IP       0x0001
00126 #define NETIF_CHECKSUM_GEN_UDP      0x0002
00127 #define NETIF_CHECKSUM_GEN_TCP      0x0004
00128 #define NETIF_CHECKSUM_GEN_ICMP     0x0008
00129 #define NETIF_CHECKSUM_GEN_ICMP6    0x0010
00130 #define NETIF_CHECKSUM_CHECK_IP     0x0100
00131 #define NETIF_CHECKSUM_CHECK_UDP    0x0200
00132 #define NETIF_CHECKSUM_CHECK_TCP    0x0400
00133 #define NETIF_CHECKSUM_CHECK_ICMP   0x0800
00134 #define NETIF_CHECKSUM_CHECK_ICMP6  0x1000
00135 #define NETIF_CHECKSUM_ENABLE_ALL   0xFFFF
00136 #define NETIF_CHECKSUM_DISABLE_ALL  0x0000
00137 #endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */
00138 
00139 struct netif;
00140 
00141 /** MAC Filter Actions, these are passed to a netif's igmp_mac_filter or
00142  * mld_mac_filter callback function. */
00143 enum netif_mac_filter_action {
00144   /** Delete a filter entry */
00145   NETIF_DEL_MAC_FILTER = 0,
00146   /** Add a filter entry */
00147   NETIF_ADD_MAC_FILTER = 1
00148 };
00149 
00150 /** Function prototype for netif init functions. Set up flags and output/linkoutput
00151  * callback functions in this function.
00152  *
00153  * @param netif The netif to initialize
00154  */
00155 typedef err_t (*netif_init_fn)(struct netif *netif);
00156 /** Function prototype for netif->input functions. This function is saved as 'input'
00157  * callback function in the netif struct. Call it when a packet has been received.
00158  *
00159  * @param p The received packet, copied into a pbuf
00160  * @param inp The netif which received the packet
00161  */
00162 typedef err_t (*netif_input_fn)(struct pbuf *p, struct netif *inp);
00163 
00164 #if LWIP_IPV4
00165 /** Function prototype for netif->output functions. Called by lwIP when a packet
00166  * shall be sent. For ethernet netif, set this to 'etharp_output' and set
00167  * 'linkoutput'.
00168  *
00169  * @param netif The netif which shall send a packet
00170  * @param p The packet to send (p->payload points to IP header)
00171  * @param ipaddr The IP address to which the packet shall be sent
00172  */
00173 typedef err_t (*netif_output_fn)(struct netif *netif, struct pbuf *p,
00174        const ip4_addr_t *ipaddr);
00175 #endif /* LWIP_IPV4*/
00176 
00177 #if LWIP_IPV6
00178 /** Function prototype for netif->output_ip6 functions. Called by lwIP when a packet
00179  * shall be sent. For ethernet netif, set this to 'ethip6_output' and set
00180  * 'linkoutput'.
00181  *
00182  * @param netif The netif which shall send a packet
00183  * @param p The packet to send (p->payload points to IP header)
00184  * @param ipaddr The IPv6 address to which the packet shall be sent
00185  */
00186 typedef err_t (*netif_output_ip6_fn)(struct netif *netif, struct pbuf *p,
00187        const ip6_addr_t *ipaddr);
00188 #endif /* LWIP_IPV6 */
00189 
00190 /** Function prototype for netif->linkoutput functions. Only used for ethernet
00191  * netifs. This function is called by ARP when a packet shall be sent.
00192  *
00193  * @param netif The netif which shall send a packet
00194  * @param p The packet to send (raw ethernet packet)
00195  */
00196 typedef err_t (*netif_linkoutput_fn)(struct netif *netif, struct pbuf *p);
00197 /** Function prototype for netif status- or link-callback functions. */
00198 typedef void (*netif_status_callback_fn)(struct netif *netif);
00199 #if LWIP_IPV4 && LWIP_IGMP
00200 /** Function prototype for netif igmp_mac_filter functions */
00201 typedef err_t (*netif_igmp_mac_filter_fn)(struct netif *netif,
00202        const ip4_addr_t *group, enum netif_mac_filter_action action);
00203 #endif /* LWIP_IPV4 && LWIP_IGMP */
00204 #if LWIP_IPV6 && LWIP_IPV6_MLD
00205 /** Function prototype for netif mld_mac_filter functions */
00206 typedef err_t (*netif_mld_mac_filter_fn)(struct netif *netif,
00207        const ip6_addr_t *group, enum netif_mac_filter_action action);
00208 #endif /* LWIP_IPV6 && LWIP_IPV6_MLD */
00209 
00210 #if LWIP_DHCP || LWIP_AUTOIP || LWIP_IGMP || LWIP_IPV6_MLD || (LWIP_NUM_NETIF_CLIENT_DATA > 0)
00211 u8_t netif_alloc_client_data_id(void);
00212 /** @ingroup netif_cd
00213  * Set client data. Obtain ID from netif_alloc_client_data_id().
00214  */
00215 #define netif_set_client_data(netif, id, data) netif_get_client_data(netif, id) = (data)
00216 /** @ingroup netif_cd
00217  * Get client data. Obtain ID from netif_alloc_client_data_id().
00218  */
00219 #define netif_get_client_data(netif, id)       (netif)->client_data[(id)]
00220 #endif /* LWIP_DHCP || LWIP_AUTOIP || (LWIP_NUM_NETIF_CLIENT_DATA > 0) */
00221 
00222 /** Generic data structure used for all lwIP network interfaces.
00223  *  The following fields should be filled in by the initialization
00224  *  function for the device driver: hwaddr_len, hwaddr[], mtu, flags */
00225 struct netif {
00226   /** pointer to next in linked list */
00227   struct netif *next;
00228 
00229 #if LWIP_IPV4
00230   /** IP address configuration in network byte order */
00231   ip_addr_t ip_addr;
00232   ip_addr_t netmask;
00233   ip_addr_t gw;
00234 #endif /* LWIP_IPV4 */
00235 #if LWIP_IPV6
00236   /** Array of IPv6 addresses for this netif. */
00237   ip_addr_t ip6_addr[LWIP_IPV6_NUM_ADDRESSES];
00238   /** The state of each IPv6 address (Tentative, Preferred, etc).
00239    * @see ip6_addr.h */
00240   u8_t ip6_addr_state[LWIP_IPV6_NUM_ADDRESSES];
00241 #if LWIP_IPV6_ADDRESS_LIFETIMES
00242   /** Remaining valid and preferred lifetime of each IPv6 address, in seconds.
00243    * For valid lifetimes, the special value of IP6_ADDR_LIFE_STATIC (0)
00244    * indicates the address is static and has no lifetimes. */
00245   u32_t ip6_addr_valid_life[LWIP_IPV6_NUM_ADDRESSES];
00246   u32_t ip6_addr_pref_life[LWIP_IPV6_NUM_ADDRESSES];
00247 #endif /* LWIP_IPV6_ADDRESS_LIFETIMES */
00248 #endif /* LWIP_IPV6 */
00249   /** This function is called by the network device driver
00250    *  to pass a packet up the TCP/IP stack. */
00251   netif_input_fn input;
00252 #if LWIP_IPV4
00253   /** This function is called by the IP module when it wants
00254    *  to send a packet on the interface. This function typically
00255    *  first resolves the hardware address, then sends the packet.
00256    *  For ethernet physical layer, this is usually etharp_output() */
00257   netif_output_fn output;
00258 #endif /* LWIP_IPV4 */
00259   /** This function is called by ethernet_output() when it wants
00260    *  to send a packet on the interface. This function outputs
00261    *  the pbuf as-is on the link medium. */
00262   netif_linkoutput_fn linkoutput;
00263 #if LWIP_IPV6
00264   /** This function is called by the IPv6 module when it wants
00265    *  to send a packet on the interface. This function typically
00266    *  first resolves the hardware address, then sends the packet.
00267    *  For ethernet physical layer, this is usually ethip6_output() */
00268   netif_output_ip6_fn output_ip6;
00269 #endif /* LWIP_IPV6 */
00270 #if LWIP_NETIF_STATUS_CALLBACK
00271   /** This function is called when the netif state is set to up or down
00272    */
00273   netif_status_callback_fn status_callback;
00274 #endif /* LWIP_NETIF_STATUS_CALLBACK */
00275 #if LWIP_NETIF_LINK_CALLBACK
00276   /** This function is called when the netif link is set to up or down
00277    */
00278   netif_status_callback_fn link_callback;
00279 #endif /* LWIP_NETIF_LINK_CALLBACK */
00280 #if LWIP_NETIF_REMOVE_CALLBACK
00281   /** This function is called when the netif has been removed */
00282   netif_status_callback_fn remove_callback;
00283 #endif /* LWIP_NETIF_REMOVE_CALLBACK */
00284   /** This field can be set by the device driver and could point
00285    *  to state information for the device. */
00286   void *state;
00287 #ifdef netif_get_client_data
00288   void* client_data[LWIP_NETIF_CLIENT_DATA_INDEX_MAX + LWIP_NUM_NETIF_CLIENT_DATA];
00289 #endif
00290 #if LWIP_IPV6_AUTOCONFIG
00291   /** is this netif enabled for IPv6 autoconfiguration */
00292   u8_t ip6_autoconfig_enabled;
00293 #endif /* LWIP_IPV6_AUTOCONFIG */
00294 #if LWIP_IPV6_SEND_ROUTER_SOLICIT
00295   /** Number of Router Solicitation messages that remain to be sent. */
00296   u8_t rs_count;
00297 #endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */
00298 #if LWIP_NETIF_HOSTNAME
00299   /* the hostname for this netif, NULL is a valid value */
00300   const char*  hostname;
00301 #endif /* LWIP_NETIF_HOSTNAME */
00302 #if LWIP_CHECKSUM_CTRL_PER_NETIF
00303   u16_t chksum_flags;
00304 #endif /* LWIP_CHECKSUM_CTRL_PER_NETIF*/
00305   /** maximum transfer unit (in bytes) */
00306   u16_t mtu;
00307   /** number of bytes used in hwaddr */
00308   u8_t hwaddr_len;
00309   /** link level hardware address of this interface */
00310   u8_t hwaddr[NETIF_MAX_HWADDR_LEN];
00311   /** flags (@see @ref netif_flags) */
00312   u8_t flags;
00313   /** descriptive abbreviation */
00314   char name[2];
00315   /** number of this interface */
00316   u8_t num;
00317 #if MIB2_STATS
00318   /** link type (from "snmp_ifType" enum from snmp_mib2.h) */
00319   u8_t link_type;
00320   /** (estimate) link speed */
00321   u32_t link_speed;
00322   /** timestamp at last change made (up/down) */
00323   u32_t ts;
00324   /** counters */
00325   struct stats_mib2_netif_ctrs mib2_counters;
00326 #endif /* MIB2_STATS */
00327 #if LWIP_IPV4 && LWIP_IGMP
00328   /** This function could be called to add or delete an entry in the multicast
00329       filter table of the ethernet MAC.*/
00330   netif_igmp_mac_filter_fn igmp_mac_filter;
00331 #endif /* LWIP_IPV4 && LWIP_IGMP */
00332 #if LWIP_IPV6 && LWIP_IPV6_MLD
00333   /** This function could be called to add or delete an entry in the IPv6 multicast
00334       filter table of the ethernet MAC. */
00335   netif_mld_mac_filter_fn mld_mac_filter;
00336 #endif /* LWIP_IPV6 && LWIP_IPV6_MLD */
00337 #if LWIP_NETIF_HWADDRHINT
00338   u8_t *addr_hint;
00339 #endif /* LWIP_NETIF_HWADDRHINT */
00340 #if ENABLE_LOOPBACK
00341   /* List of packets to be queued for ourselves. */
00342   struct pbuf *loop_first;
00343   struct pbuf *loop_last;
00344 #if LWIP_LOOPBACK_MAX_PBUFS
00345   u16_t loop_cnt_current;
00346 #endif /* LWIP_LOOPBACK_MAX_PBUFS */
00347 #endif /* ENABLE_LOOPBACK */
00348 };
00349 
00350 #if LWIP_CHECKSUM_CTRL_PER_NETIF
00351 #define NETIF_SET_CHECKSUM_CTRL(netif, chksumflags) do { \
00352   (netif)->chksum_flags = chksumflags; } while(0)
00353 #define IF__NETIF_CHECKSUM_ENABLED(netif, chksumflag) if (((netif) == NULL) || (((netif)->chksum_flags & (chksumflag)) != 0))
00354 #else /* LWIP_CHECKSUM_CTRL_PER_NETIF */
00355 #define NETIF_SET_CHECKSUM_CTRL(netif, chksumflags)
00356 #define IF__NETIF_CHECKSUM_ENABLED(netif, chksumflag)
00357 #endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */
00358 
00359 /** The list of network interfaces. */
00360 extern struct netif *netif_list;
00361 /** The default network interface. */
00362 extern struct netif *netif_default;
00363 
00364 void netif_init(void);
00365 
00366 struct netif *netif_add(struct netif *netif,
00367 #if LWIP_IPV4
00368                         const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw,
00369 #endif /* LWIP_IPV4 */
00370                         void *state, netif_init_fn init, netif_input_fn input);
00371 #if LWIP_IPV4
00372 void netif_set_addr(struct netif *netif, const ip4_addr_t *ipaddr, const ip4_addr_t *netmask,
00373                     const ip4_addr_t *gw);
00374 #endif /* LWIP_IPV4 */
00375 void netif_remove(struct netif * netif);
00376 
00377 /* Returns a network interface given its name. The name is of the form
00378    "et0", where the first two letters are the "name" field in the
00379    netif structure, and the digit is in the num field in the same
00380    structure. */
00381 struct netif *netif_find(const char *name);
00382 
00383 void netif_set_default(struct netif *netif);
00384 
00385 #if LWIP_IPV4
00386 void netif_set_ipaddr(struct netif *netif, const ip4_addr_t *ipaddr);
00387 void netif_set_netmask(struct netif *netif, const ip4_addr_t *netmask);
00388 void netif_set_gw(struct netif *netif, const ip4_addr_t *gw);
00389 /** @ingroup netif_ip4 */
00390 #define netif_ip4_addr(netif)    ((const ip4_addr_t*)ip_2_ip4(&((netif)->ip_addr)))
00391 /** @ingroup netif_ip4 */
00392 #define netif_ip4_netmask(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->netmask)))
00393 /** @ingroup netif_ip4 */
00394 #define netif_ip4_gw(netif)      ((const ip4_addr_t*)ip_2_ip4(&((netif)->gw)))
00395 /** @ingroup netif_ip4 */
00396 #define netif_ip_addr4(netif)    ((const ip_addr_t*)&((netif)->ip_addr))
00397 /** @ingroup netif_ip4 */
00398 #define netif_ip_netmask4(netif) ((const ip_addr_t*)&((netif)->netmask))
00399 /** @ingroup netif_ip4 */
00400 #define netif_ip_gw4(netif)      ((const ip_addr_t*)&((netif)->gw))
00401 #endif /* LWIP_IPV4 */
00402 
00403 void netif_set_up(struct netif *netif);
00404 void netif_set_down(struct netif *netif);
00405 /** @ingroup netif
00406  * Ask if an interface is up
00407  */
00408 #define netif_is_up(netif) (((netif)->flags & NETIF_FLAG_UP) ? (u8_t)1 : (u8_t)0)
00409 
00410 #if LWIP_NETIF_STATUS_CALLBACK
00411 void netif_set_status_callback(struct netif *netif, netif_status_callback_fn status_callback);
00412 #endif /* LWIP_NETIF_STATUS_CALLBACK */
00413 #if LWIP_NETIF_REMOVE_CALLBACK
00414 void netif_set_remove_callback(struct netif *netif, netif_status_callback_fn remove_callback);
00415 #endif /* LWIP_NETIF_REMOVE_CALLBACK */
00416 
00417 void netif_set_link_up(struct netif *netif);
00418 void netif_set_link_down(struct netif *netif);
00419 /** Ask if a link is up */
00420 #define netif_is_link_up(netif) (((netif)->flags & NETIF_FLAG_LINK_UP) ? (u8_t)1 : (u8_t)0)
00421 
00422 #if LWIP_NETIF_LINK_CALLBACK
00423 void netif_set_link_callback(struct netif *netif, netif_status_callback_fn link_callback);
00424 #endif /* LWIP_NETIF_LINK_CALLBACK */
00425 
00426 #if LWIP_NETIF_HOSTNAME
00427 /** @ingroup netif */
00428 #define netif_set_hostname(netif, name) do { if((netif) != NULL) { (netif)->hostname = name; }}while(0)
00429 /** @ingroup netif */
00430 #define netif_get_hostname(netif) (((netif) != NULL) ? ((netif)->hostname) : NULL)
00431 #endif /* LWIP_NETIF_HOSTNAME */
00432 
00433 #if LWIP_IGMP
00434 /** @ingroup netif */
00435 #define netif_set_igmp_mac_filter(netif, function) do { if((netif) != NULL) { (netif)->igmp_mac_filter = function; }}while(0)
00436 #define netif_get_igmp_mac_filter(netif) (((netif) != NULL) ? ((netif)->igmp_mac_filter) : NULL)
00437 #endif /* LWIP_IGMP */
00438 
00439 #if LWIP_IPV6 && LWIP_IPV6_MLD
00440 /** @ingroup netif */
00441 #define netif_set_mld_mac_filter(netif, function) do { if((netif) != NULL) { (netif)->mld_mac_filter = function; }}while(0)
00442 #define netif_get_mld_mac_filter(netif) (((netif) != NULL) ? ((netif)->mld_mac_filter) : NULL)
00443 #define netif_mld_mac_filter(netif, addr, action) do { if((netif) && (netif)->mld_mac_filter) { (netif)->mld_mac_filter((netif), (addr), (action)); }}while(0)
00444 #endif /* LWIP_IPV6 && LWIP_IPV6_MLD */
00445 
00446 #if ENABLE_LOOPBACK
00447 err_t netif_loop_output(struct netif *netif, struct pbuf *p);
00448 void netif_poll(struct netif *netif);
00449 #if !LWIP_NETIF_LOOPBACK_MULTITHREADING
00450 void netif_poll_all(void);
00451 #endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */
00452 #endif /* ENABLE_LOOPBACK */
00453 
00454 err_t netif_input(struct pbuf *p, struct netif *inp);
00455 
00456 #if LWIP_IPV6
00457 /** @ingroup netif_ip6 */
00458 #define netif_ip_addr6(netif, i)  ((const ip_addr_t*)(&((netif)->ip6_addr[i])))
00459 /** @ingroup netif_ip6 */
00460 #define netif_ip6_addr(netif, i)  ((const ip6_addr_t*)ip_2_ip6(&((netif)->ip6_addr[i])))
00461 void netif_ip6_addr_set(struct netif *netif, s8_t addr_idx, const ip6_addr_t *addr6);
00462 void netif_ip6_addr_set_parts(struct netif *netif, s8_t addr_idx, u32_t i0, u32_t i1, u32_t i2, u32_t i3);
00463 #define netif_ip6_addr_state(netif, i)  ((netif)->ip6_addr_state[i])
00464 void netif_ip6_addr_set_state(struct netif* netif, s8_t addr_idx, u8_t state);
00465 s8_t netif_get_ip6_addr_match(struct netif *netif, const ip6_addr_t *ip6addr);
00466 void netif_create_ip6_linklocal_address(struct netif *netif, u8_t from_mac_48bit);
00467 err_t netif_add_ip6_address(struct netif *netif, const ip6_addr_t *ip6addr, s8_t *chosen_idx);
00468 #define netif_set_ip6_autoconfig_enabled(netif, action) do { if(netif) { (netif)->ip6_autoconfig_enabled = (action); }}while(0)
00469 #if LWIP_IPV6_ADDRESS_LIFETIMES
00470 #define netif_ip6_addr_valid_life(netif, i)  \
00471     (((netif) != NULL) ? ((netif)->ip6_addr_valid_life[i]) : IP6_ADDR_LIFE_STATIC)
00472 #define netif_ip6_addr_set_valid_life(netif, i, secs) \
00473     do { if (netif != NULL) { (netif)->ip6_addr_valid_life[i] = (secs); }} while (0)
00474 #define netif_ip6_addr_pref_life(netif, i)  \
00475     (((netif) != NULL) ? ((netif)->ip6_addr_pref_life[i]) : IP6_ADDR_LIFE_STATIC)
00476 #define netif_ip6_addr_set_pref_life(netif, i, secs) \
00477     do { if (netif != NULL) { (netif)->ip6_addr_pref_life[i] = (secs); }} while (0)
00478 #define netif_ip6_addr_isstatic(netif, i)  \
00479     (netif_ip6_addr_valid_life((netif), (i)) == IP6_ADDR_LIFE_STATIC)
00480 #else /* !LWIP_IPV6_ADDRESS_LIFETIMES */
00481 #define netif_ip6_addr_isstatic(netif, i)  (1) /* all addresses are static */
00482 #endif /* !LWIP_IPV6_ADDRESS_LIFETIMES */
00483 #endif /* LWIP_IPV6 */
00484 
00485 #if LWIP_NETIF_HWADDRHINT
00486 #define NETIF_SET_HWADDRHINT(netif, hint) ((netif)->addr_hint = (hint))
00487 #else /* LWIP_NETIF_HWADDRHINT */
00488 #define NETIF_SET_HWADDRHINT(netif, hint)
00489 #endif /* LWIP_NETIF_HWADDRHINT */
00490 
00491 #ifdef __cplusplus
00492 }
00493 #endif
00494 
00495 #endif /* LWIP_HDR_NETIF_H */