/[lwip]/lwip/src/netif/etharp.c
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Diff of /lwip/src/netif/etharp.c

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revision 1.30 by likewise, Sun Mar 16 22:44:05 2003 UTC revision 1.31 by likewise, Sun Mar 16 23:46:29 2003 UTC
# Line 2  Line 2 
2   * @file   * @file
3   * Address Resolution Protocol module for IP over Ethernet   * Address Resolution Protocol module for IP over Ethernet
4   *   *
  * $Log$  
  * Revision 1.30  2003/03/16 22:44:05  likewise  
  * Fixed bug #2841 (etharp.c packet queueing always picks table entry 6).  
  *  
  * Revision 1.29  2003/02/24 10:49:05  jani  
  * cleaned up opt.h a bit, added more option defaults ad changed SYS_LIGHTWEIGHT_PROT to be a 0/1 define.The same for COMPAT_SOCKET  
  *  
  * Revision 1.28  2003/02/21 16:43:46  jani  
  * byte-order handling functions are in inet.c now and the uperrcase counterparts are gone. opt.h has all the  
  * configurable items debug does not need to be directly included.  
  *  
  * Revision 1.27  2003/02/20 16:32:24  jani  
  * do not directly include lwipopts.h but lwip/opt.h instead  
  *  
  * Revision 1.26  2003/02/20 13:13:56  likewise  
  * Fixed some issues open after merging 'leon-dhcp'. Added new debugging.  
  *  
  * Revision 1.25  2003/02/20 08:42:04  likewise  
  * Merged with leon-dhcp branch. Tagged as POST_leon-dhcp afterwards.  
  *  
  * Revision 1.24.2.1  2003/02/10 22:42:59  likewise  
  * Massive amount of refactoring DHCP code.  
  *  
  * Revision 1.24  2003/02/06 22:18:57  davidhaas  
  * Add the following features and bugfixes:  
  *  
  * Added select() functionality to sockets library.  
  * Support for errno in sockets library.  
  * Byte ordering fixes.  
  * basic lwip_ioctl(), FIONREAD, get/setsockopt() etc. support  
  *  
  * - added additional argument to netif_add to pass state pointer so that the  
  * if_init function has access to context information before  
  * the interface is added, without accessing globals.  
  *  
  * - added netif_remove()  
  *  
  * - to conserve cpu load the tcpip_tcp_timer should only be active  
  * when tcbs that need it exist.  
  *  
  * - pass length of available data to callbacks for NETCONN_EVT_RCV events  
  *  
  * - added tcpip_link_input(), a hack to allow processing of PPP  
  * packets in tcpip_thread() context. This saves threads and context  
  * switches.  
  *  
  * - renamed incompatible ASSERT() macro to LWIP_ASSERT() to avoid name  
  * collision.  
  *  
  * - changed a bunch of %d's to %u's in format strings for unsigned values.  
  *  
  * - added ip_frag to lwip_stats.  
  *  
  * - changed IP_REASS_MAXAGE and IP_REASS_TMO defaults to more realistic  
  * values.  
  *  
  * - added sys_timeout_remove() function to cancel timeouts (needed by PPP  
  * amongst other things).  
  *  
  * - tolerate NULL returns from sys_arch_timeouts() since some threads might  
  * not need to use or have timeouts.  
  *  
  * - added sys_sem_wait_timeout()  
  *  
  * - moved mem_malloc() function to end of mem.c to work around tasking  
  * compiler bug.  
  *  
  * - automatically bind to local tcp port if 0.  
  *  
  * - allow customization of port ranges for automatic local bindings.  
  *  
  * - corrected various typos, spelling errors, etc..  
  *  
  * Thanks to Marc Boucher for many of these changes.  
  *  
  * Revision 1.23  2003/01/18 16:05:24  jani  
  * When all entries are 0 due to the whole table changing since the last arp tick (past 10 seconds) there's no oldest entry and the new entry does not  get a spot.Fix this (from Ed Sutter)  
  *  
  * Revision 1.22  2003/01/13 09:38:21  jani  
  * remove global ctime.Each entry's ctime is now absolute.This avoids wrapping and also solves naming clash reported on the list  
  *  
  * Revision 1.21  2003/01/08 11:04:36  likewise  
  * Moved ETHARP_ALWAYS_INSERT switch to lwipopts.h  
  *  
  * Revision 1.19  2003/01/08 10:09:43  likewise  
  * Updated lwIP module copyright years to include 2003. Committers must check theirs.  
  *  
  * Revision 1.18  2003/01/08 09:24:50  likewise  
  * Removed etharp_output_sent() as etharp.c no longer returns ARP packets to the driver.  
  *  
  * Revision 1.17  2002/12/18 12:49:02  jani  
  * renamed (hopefully everywhere) stats to lwip_stats.closes bug #1901  
  *  
  * Revision 1.16  2002/12/17 09:41:16  jani  
  * Use C style comments.In debug stataments cast various struct pointers to void* to  
  * avoid printf warnings.misc warnings in etharp.  
  *  
5   */   */
6    
7  /*  /*
# Line 298  find_arp_entry(void) Line 201  find_arp_entry(void)
201      for(i = 0; i < ARP_TABLE_SIZE; ++i) {      for(i = 0; i < ARP_TABLE_SIZE; ++i) {
202        /* remember entry with oldest stable entry in j*/        /* remember entry with oldest stable entry in j*/
203        if((arp_table[i].state == ETHARP_STATE_STABLE) &&        if((arp_table[i].state == ETHARP_STATE_STABLE) &&
204    #if ARP_QUEUEING /* do not want to re-use an entry with queued packets */
205          (arp_table[i].p != NULL) &&
206    #endif
207        (arp_table[i].ctime >= maxtime)) {        (arp_table[i].ctime >= maxtime)) {
208          maxtime = arp_table[i].ctime;          maxtime = arp_table[i].ctime;
209                j = i;                j = i;

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