Initial revision

2002-10-19 12:59:30 +00:00
commit f06e955072
145 changed files with 27001 additions and 0 deletions
--- a/src/core/netif.c
+++ b/src/core/netif.c
@@ -0,0 +1,142 @@
+/*
+ * Copyright (c) 2001, 2002 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#include "lwip/debug.h"
+
+#include "lwip/def.h"
+#include "lwip/mem.h"
+#include "lwip/netif.h"
+
+struct netif *netif_list = NULL;
+struct netif *netif_default = NULL;
+
+/*-----------------------------------------------------------------------------------*/
+struct netif *
+netif_add(struct ip_addr *ipaddr, struct ip_addr *netmask,
+	  struct ip_addr *gw,
+	  void (* init)(struct netif *netif),
+	  err_t (* input)(struct pbuf *p, struct netif *netif))
+{
+  struct netif *netif;
+  static int netifnum = 0;
+  
+  netif = mem_malloc(sizeof(struct netif));
+
+  if(netif == NULL) {
+    return NULL;
+  }
+  
+  netif->num = netifnum++;
+  netif->input = input;
+  ip_addr_set(&(netif->ip_addr), ipaddr);
+  ip_addr_set(&(netif->netmask), netmask);
+  ip_addr_set(&(netif->gw), gw);
+
+  init(netif);
+  
+  netif->next = netif_list;
+  netif_list = netif;
+#if NETIF_DEBUG
+  DEBUGF(NETIF_DEBUG, ("netif: added interface %c%c IP addr ",
+		       netif->name[0], netif->name[1]));
+  ip_addr_debug_print(ipaddr);
+  DEBUGF(NETIF_DEBUG, (" netmask "));
+  ip_addr_debug_print(netmask);
+  DEBUGF(NETIF_DEBUG, (" gw "));  
+  ip_addr_debug_print(gw);
+  DEBUGF(NETIF_DEBUG, ("\n"));
+#endif /* NETIF_DEBUG */
+  return netif;
+}
+/*-----------------------------------------------------------------------------------*/
+struct netif *
+netif_find(char *name)
+{
+  struct netif *netif;
+  u8_t num;
+  
+  if(name == NULL) {
+    return NULL;
+  }
+
+  num = name[2] - '0';
+ 
+  for(netif = netif_list; netif != NULL; netif = netif->next) {
+    if(num == netif->num &&
+       name[0] == netif->name[0] &&
+       name[1] == netif->name[1]) {
+      DEBUGF(NETIF_DEBUG, ("netif_find: found %s\n", name));
+      return netif;
+    }    
+  }
+  DEBUGF(NETIF_DEBUG, ("netif_find: didn't find %s\n", name));
+  return NULL;
+}
+/*-----------------------------------------------------------------------------------*/
+void
+netif_set_ipaddr(struct netif *netif, struct ip_addr *ipaddr)
+{
+  ip_addr_set(&(netif->ip_addr), ipaddr);
+  DEBUGF(NETIF_DEBUG, ("netif: setting IP address of interface %c%c to %d.%d.%d.%d\n",
+		       netif->name[0], netif->name[1],
+		       (u8_t)(ntohl(ipaddr->addr) >> 24 & 0xff),
+		       (u8_t)(ntohl(ipaddr->addr) >> 16 & 0xff),
+		       (u8_t)(ntohl(ipaddr->addr) >> 8 & 0xff),
+		       (u8_t)(ntohl(ipaddr->addr) & 0xff)));
+}
+/*-----------------------------------------------------------------------------------*/
+void
+netif_set_gw(struct netif *netif, struct ip_addr *gw)
+{
+  ip_addr_set(&(netif->gw), gw);
+}
+/*-----------------------------------------------------------------------------------*/
+void
+netif_set_netmask(struct netif *netif, struct ip_addr *netmask)
+{
+  ip_addr_set(&(netif->netmask), netmask);
+}
+/*-----------------------------------------------------------------------------------*/
+void
+netif_set_default(struct netif *netif)
+{
+  netif_default = netif;
+  DEBUGF(NETIF_DEBUG, ("netif: setting default interface %c%c\n",
+		       netif->name[0], netif->name[1]));
+}
+/*-----------------------------------------------------------------------------------*/
+void
+netif_init(void)
+{
+  netif_list = netif_default = NULL;
+}
+/*-----------------------------------------------------------------------------------*/