Changeset 02a09ed in mainline for uspace/srv/net/ethip/arp.c

Timestamp:

2013-06-28T20:20:03Z (11 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

1d24ad3

Parents:

edf0d27

Message:

add basic infrastructure for IPv6 (inactive)
make inet_addr_t a universal address type

File:

• uspace/srv/net/ethip/arp.c (modified) (3 diffs)

uspace/srv/net/ethip/arp.c

@@ -38 +38 @@
 #include <io/log.h>
 #include <inet/iplink_srv.h>
+#include <inet/addr.h>
 #include <stdlib.h>
-
+#include <net/socket_codes.h>
 #include "arp.h"
 #include "atrans.h"
@@ -54 +55 @@
 void arp_received(ethip_nic_t *nic, eth_frame_t *frame)
 {
-        int rc;
+        log_msg(LOG_DEFAULT, LVL_DEBUG, "arp_received()");
+        
         arp_eth_packet_t packet;
-        arp_eth_packet_t reply;
-        ethip_link_addr_t *laddr;
-
-        log_msg(LOG_DEFAULT, LVL_DEBUG, "arp_received()");
-
-        rc = arp_pdu_decode(frame->data, frame->size, &packet);
+        int rc = arp_pdu_decode(frame->data, frame->size, &packet);
         if (rc != EOK)
                 return;
-
+        
         log_msg(LOG_DEFAULT, LVL_DEBUG, "ARP PDU decoded, opcode=%d, tpa=%x",
             packet.opcode, packet.target_proto_addr);
-
-        laddr = ethip_nic_addr_find(nic, packet.target_proto_addr);
-        if (laddr != NULL) {
-                log_msg(LOG_DEFAULT, LVL_DEBUG, "Request/reply to my address");
-
-                (void) atrans_add(packet.sender_proto_addr,
-                    &packet.sender_hw_addr);
-
-                if (packet.opcode == aop_request) {
-                        reply.opcode = aop_reply;
-                        reply.sender_hw_addr = nic->mac_addr;
-                        reply.sender_proto_addr = laddr->addr;
-                        reply.target_hw_addr = packet.sender_hw_addr;
-                        reply.target_proto_addr = packet.sender_proto_addr;
-
-                        arp_send_packet(nic, &reply);
-                }
+        
+        inet_addr_t addr;
+        inet_addr_set(packet.target_proto_addr, &addr);
+        
+        ethip_link_addr_t *laddr = ethip_nic_addr_find(nic, &addr);
+        if (laddr == NULL)
+                return;
+        
+        addr32_t laddr_v4;
+        uint16_t laddr_af = inet_addr_get(&laddr->addr, &laddr_v4, NULL);
+        if (laddr_af != AF_INET)
+                return;
+        
+        log_msg(LOG_DEFAULT, LVL_DEBUG, "Request/reply to my address");
+        
+        (void) atrans_add(packet.sender_proto_addr,
+            packet.sender_hw_addr);
+        
+        if (packet.opcode == aop_request) {
+                arp_eth_packet_t reply;
+                
+                reply.opcode = aop_reply;
+                addr48(nic->mac_addr, reply.sender_hw_addr);
+                reply.sender_proto_addr = laddr_v4;
+                addr48(packet.sender_hw_addr, reply.target_hw_addr);
+                reply.target_proto_addr = packet.sender_proto_addr;
+                
+                arp_send_packet(nic, &reply);
         }
 }
 
-int arp_translate(ethip_nic_t *nic, uint32_t src_addr, uint32_t ip_addr,
-    mac48_addr_t *mac_addr)
+int arp_translate(ethip_nic_t *nic, addr32_t src_addr, addr32_t ip_addr,
+    addr48_t mac_addr)
 {
-        int rc;
-        arp_eth_packet_t packet;
-
-        rc = atrans_lookup(ip_addr, mac_addr);
+        int rc = atrans_lookup(ip_addr, mac_addr);
         if (rc == EOK)
                 return EOK;
-
+        
+        arp_eth_packet_t packet;
+        
         packet.opcode = aop_request;
-        packet.sender_hw_addr = nic->mac_addr;
+        addr48(nic->mac_addr, packet.sender_hw_addr);
         packet.sender_proto_addr = src_addr;
-        packet.target_hw_addr.addr = MAC48_BROADCAST;
+        addr48(addr48_broadcast, packet.target_hw_addr);
         packet.target_proto_addr = ip_addr;
-
+        
         rc = arp_send_packet(nic, &packet);
         if (rc != EOK)
@@ -128 +135 @@
                 return rc;
 
-        frame.dest.addr = packet->target_hw_addr.addr;
-        frame.src.addr =  packet->sender_hw_addr.addr;
+        addr48(packet->target_hw_addr, frame.dest);
+        addr48(packet->sender_hw_addr, frame.src);
         frame.etype_len = ETYPE_ARP;
         frame.data = pdata;