Add documentation of package structure

Signed-off-by: Florian Hauschild <[email protected]>
seL4 · Jul 12, 2022 · 9f0a534 · 9f0a534
1 parent 806625a
commit 9f0a534
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/apps/Arm/vm_virtio_net/components/PingClient/ping_client.c b/apps/Arm/vm_virtio_net/components/PingClient/ping_client.c
@@ -92,6 +92,10 @@ int create_arp_req_reply(char *recv_data, unsigned int recv_data_size)
 {
     char reply_buffer[ETHERMTU];
 
+    // recv_data holds a packet of the form:
+    // +--------+-----------+
+    // | ethhdr | ether_arp |
+    // +--------+-----------+
     struct ether_arp *arp_req = (struct ether_arp *)(recv_data + sizeof(struct ethhdr));
 
     struct ethhdr *send_reply = (struct ethhdr *) reply_buffer;