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/* |
/* |
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* Copyright (c) 2001-2003 Swedish Institute of Computer Science. |
* Copyright (c) 2001-2003 Swedish Institute of Computer Science. |
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* All rights reserved. |
* All rights reserved. |
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* |
* |
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* Redistribution and use in source and binary forms, with or without modification, |
* Redistribution and use in source and binary forms, with or without modification, |
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* are permitted provided that the following conditions are met: |
* are permitted provided that the following conditions are met: |
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* |
* |
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* 1. Redistributions of source code must retain the above copyright notice, |
* 1. Redistributions of source code must retain the above copyright notice, |
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* this list of conditions and the following disclaimer in the documentation |
* this list of conditions and the following disclaimer in the documentation |
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* and/or other materials provided with the distribution. |
* and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
* derived from this software without specific prior written permission. |
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* |
* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
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* OF SUCH DAMAGE. |
* OF SUCH DAMAGE. |
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* |
* |
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* This file is part of the lwIP TCP/IP stack. |
* This file is part of the lwIP TCP/IP stack. |
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* |
* |
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* Author: Adam Dunkels <adam@sics.se> |
* Author: Adam Dunkels <adam@sics.se> |
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* |
* |
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*/ |
*/ |
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struct netif *netif; |
struct netif *netif; |
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static int netifnum = 0; |
static int netifnum = 0; |
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|
|
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/* allocate netif structure */ |
/* allocate netif structure */ |
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netif = mem_malloc(sizeof(struct netif)); |
netif = mem_malloc(sizeof(struct netif)); |
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|
|
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if (netif == NULL) { |
if (netif == NULL) { |
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#if LWIP_DHCP |
#if LWIP_DHCP |
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/* netif not under DHCP control by default */ |
/* netif not under DHCP control by default */ |
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netif->dhcp = NULL; |
netif->dhcp = NULL; |
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#endif |
#endif |
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/* remember netif specific state information data */ |
/* remember netif specific state information data */ |
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netif->state = state; |
netif->state = state; |
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netif->num = netifnum++; |
netif->num = netifnum++; |
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netif->input = input; |
netif->input = input; |
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|
|
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netif_set_addr(netif, ipaddr, netmask, gw); |
netif_set_addr(netif, ipaddr, netmask, gw); |
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|
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/* call user specified initialization function for netif */ |
/* call user specified initialization function for netif */ |
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if (init(netif) != ERR_OK) { |
if (init(netif) != ERR_OK) { |
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mem_free(netif); |
mem_free(netif); |
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return NULL; |
return NULL; |
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} |
} |
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|
|
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/* add this netif to the list */ |
/* add this netif to the list */ |
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netif->next = netif_list; |
netif->next = netif_list; |
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netif_list = netif; |
netif_list = netif; |
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ip_addr_debug_print(ipaddr); |
ip_addr_debug_print(ipaddr); |
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DEBUGF(NETIF_DEBUG, (" netmask ")); |
DEBUGF(NETIF_DEBUG, (" netmask ")); |
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ip_addr_debug_print(netmask); |
ip_addr_debug_print(netmask); |
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DEBUGF(NETIF_DEBUG, (" gw ")); |
DEBUGF(NETIF_DEBUG, (" gw ")); |
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ip_addr_debug_print(gw); |
ip_addr_debug_print(gw); |
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DEBUGF(NETIF_DEBUG, ("\n")); |
DEBUGF(NETIF_DEBUG, ("\n")); |
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#endif /* NETIF_DEBUG */ |
#endif /* NETIF_DEBUG */ |
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|
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void netif_remove(struct netif * netif) |
void netif_remove(struct netif * netif) |
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{ |
{ |
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if ( netif == NULL ) return; |
if ( netif == NULL ) return; |
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|
|
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/* is it the first netif? */ |
/* is it the first netif? */ |
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if (netif_list == netif) { |
if (netif_list == netif) { |
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netif_list = netif->next; |
netif_list = netif->next; |
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} |
} |
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else { |
else { |
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/* look for netif further down the list */ |
/* look for netif further down the list */ |
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struct netif * tmpNetif; |
struct netif * tmpNetif; |
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for (tmpNetif = netif_list; tmpNetif != NULL; tmpNetif = tmpNetif->next) { |
for (tmpNetif = netif_list; tmpNetif != NULL; tmpNetif = tmpNetif->next) { |
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if (tmpNetif->next == netif) { |
if (tmpNetif->next == netif) { |
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tmpNetif->next = netif->next; |
tmpNetif->next = netif->next; |
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break; |
break; |
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} |
} |
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} |
} |
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if (tmpNetif == NULL) |
if (tmpNetif == NULL) |
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return; /* we didn't find any netif today */ |
return; /* we didn't find any netif today */ |
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{ |
{ |
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struct netif *netif; |
struct netif *netif; |
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u8_t num; |
u8_t num; |
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|
|
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if (name == NULL) { |
if (name == NULL) { |
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return NULL; |
return NULL; |
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} |
} |
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num = name[2] - '0'; |
num = name[2] - '0'; |
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|
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for(netif = netif_list; netif != NULL; netif = netif->next) { |
for(netif = netif_list; netif != NULL; netif = netif->next) { |
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if (num == netif->num && |
if (num == netif->num && |
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name[0] == netif->name[0] && |
name[0] == netif->name[0] && |
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name[1] == netif->name[1]) { |
name[1] == netif->name[1]) { |
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DEBUGF(NETIF_DEBUG, ("netif_find: found %c%c\n", name[0], name[1])); |
DEBUGF(NETIF_DEBUG, ("netif_find: found %c%c\n", name[0], name[1])); |
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return netif; |
return netif; |
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} |
} |
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} |
} |
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DEBUGF(NETIF_DEBUG, ("netif_find: didn't find %c%c\n", name[0], name[1])); |
DEBUGF(NETIF_DEBUG, ("netif_find: didn't find %c%c\n", name[0], name[1])); |
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return NULL; |
return NULL; |
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{ |
{ |
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/* TODO: Handling of obsolete pcbs */ |
/* TODO: Handling of obsolete pcbs */ |
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/* See: http://mail.gnu.org/archive/html/lwip-users/2003-03/msg00118.html */ |
/* See: http://mail.gnu.org/archive/html/lwip-users/2003-03/msg00118.html */ |
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#if LWIP_TCP |
#if LWIP_TCP |
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struct tcp_pcb *pcb; |
struct tcp_pcb *pcb; |
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struct tcp_pcb_listen *lpcb; |
struct tcp_pcb_listen *lpcb; |
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|
|
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/* address has changed? */ |
/* address is actually being changed? */ |
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if ((ip_addr_cmp(ipaddr, &(netif->ip_addr))) == 0) |
if ((ip_addr_cmp(ipaddr, &(netif->ip_addr))) == 0) |
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{ |
{ |
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extern struct tcp_pcb *tcp_active_pcbs; |
extern struct tcp_pcb *tcp_active_pcbs; |
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DEBUGF(NETIF_DEBUG | 1, ("netif_set_ipaddr: netif address changed\n")); |
DEBUGF(NETIF_DEBUG | 1, ("netif_set_ipaddr: netif address being changed\n")); |
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pcb = tcp_active_pcbs; |
pcb = tcp_active_pcbs; |
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while (pcb != NULL) { |
while (pcb != NULL) { |
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/* PCB bound to current local interface address? */ |
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if (ip_addr_cmp(&(pcb->local_ip), &(netif->ip_addr))) { |
if (ip_addr_cmp(&(pcb->local_ip), &(netif->ip_addr))) { |
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/* The PCB is connected using the old ipaddr and must be aborted */ |
/* this connection must be aborted */ |
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struct tcp_pcb *next = pcb->next; |
struct tcp_pcb *next = pcb->next; |
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DEBUGF(NETIF_DEBUG | 1, ("netif_set_ipaddr: aborting pcb %p\n", (void *)pcb)); |
DEBUGF(NETIF_DEBUG | 1, ("netif_set_ipaddr: aborting pcb %p\n", (void *)pcb)); |
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tcp_abort(pcb); |
tcp_abort(pcb); |
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} |
} |
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} |
} |
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for (lpcb = tcp_listen_pcbs; lpcb != NULL; lpcb = lpcb->next) { |
for (lpcb = tcp_listen_pcbs; lpcb != NULL; lpcb = lpcb->next) { |
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/* PCB bound to current local interface address? */ |
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if (ip_addr_cmp(&(lpcb->local_ip), &(netif->ip_addr))) { |
if (ip_addr_cmp(&(lpcb->local_ip), &(netif->ip_addr))) { |
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/* The PCB is listening to the old ipaddr and |
/* The PCB is listening to the old ipaddr and |
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* is set to listen to the new one instead */ |
* is set to listen to the new one instead */ |
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|
* TODO: how do we know it is _listening_? */ |
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ip_addr_set(&(lpcb->local_ip), ipaddr); |
ip_addr_set(&(lpcb->local_ip), ipaddr); |
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} |
} |
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} |
} |
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#endif |
#endif |
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ip_addr_set(&(netif->ip_addr), ipaddr); |
ip_addr_set(&(netif->ip_addr), ipaddr); |
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DEBUGF(NETIF_DEBUG | DBG_TRACE | DBG_STATE | 3, ("netif: IP address of interface %c%c set to %u.%u.%u.%u\n", |
DEBUGF(NETIF_DEBUG | DBG_TRACE | DBG_STATE | 3, ("netif: IP address of interface %c%c set to %u.%u.%u.%u\n", |
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netif->name[0], netif->name[1], |
netif->name[0], netif->name[1], |
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(u8_t)(ntohl(netif->ip_addr.addr) >> 24 & 0xff), |
(u8_t)(ntohl(netif->ip_addr.addr) >> 24 & 0xff), |
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(u8_t)(ntohl(netif->ip_addr.addr) >> 16 & 0xff), |
(u8_t)(ntohl(netif->ip_addr.addr) >> 16 & 0xff), |
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(u8_t)(ntohl(netif->ip_addr.addr) >> 8 & 0xff), |
(u8_t)(ntohl(netif->ip_addr.addr) >> 8 & 0xff), |
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{ |
{ |
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ip_addr_set(&(netif->gw), gw); |
ip_addr_set(&(netif->gw), gw); |
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DEBUGF(NETIF_DEBUG | DBG_TRACE | DBG_STATE | 3, ("netif: GW address of interface %c%c set to %u.%u.%u.%u\n", |
DEBUGF(NETIF_DEBUG | DBG_TRACE | DBG_STATE | 3, ("netif: GW address of interface %c%c set to %u.%u.%u.%u\n", |
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netif->name[0], netif->name[1], |
netif->name[0], netif->name[1], |
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(u8_t)(ntohl(netif->gw.addr) >> 24 & 0xff), |
(u8_t)(ntohl(netif->gw.addr) >> 24 & 0xff), |
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(u8_t)(ntohl(netif->gw.addr) >> 16 & 0xff), |
(u8_t)(ntohl(netif->gw.addr) >> 16 & 0xff), |
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(u8_t)(ntohl(netif->gw.addr) >> 8 & 0xff), |
(u8_t)(ntohl(netif->gw.addr) >> 8 & 0xff), |