working on icmp ping reply

1 files changed, 21 insertions, 0 deletions

diff --git a/net/icmp.c b/net/icmp.c
new file mode 100644
index 0000000..038e32a
--- /dev/null
+++ b/net/icmp.c
@@ -0,0 +1,21 @@
+#include "inet.h"
+#include "icmp.h"
+#include "log.h"
+
+bool icmp_incoming(struct netdev *dev,struct icmp_v4 *data, uint32_t count_bytes)
+{
+    klog ("icmp type=%d",data->type);
+    klog ("icmp code=%d",data->code);
+    klog ("icmp csum=0x%04x",ntohs(data->csum));
+    data->csum=0;
+    klog("expected checksum = 0x%04X",checksum(data,count_bytes));
+
+    if(data->type==ICMP_ECHO_REQUEST) // echo request
+    {
+	struct icmp_v4_echo *echo=data->data;
+	klog ("received echo request id=%d, seq=%d, data=%d ",ntohs(echo->id),ntohs(echo->seq),echo->data);
+//	icmp_reply(); /// TODO watchout that this is the memory managed by the network card we are dealing with!!. fix this later.
+    }
+
+    return true;
+}