dgram: link: Improve reception, add timeouts, ++HEADmaster

- Add timeouts
- Clean up padding, add length define

Signed-off-by: Ian Moffett <ian@osmora.org>

2 files changed, 15 insertions, 0 deletions

diff --git a/src/include/dgram.h b/src/include/dgram.h
index 779c7ef..81fd1dd 100644
--- a/src/include/dgram.h
+++ b/src/include/dgram.h
@@ -34,6 +34,12 @@
 #include "if_ether.h"
 #include "link.h"
 
+/* Number of padding bytes in a squeak */
+#define SQUEAK_NPAD 8
+
+/* How many ms we should poll on recv */
+#define RECV_POLL_MS 250
+
 typedef int16_t tx_len_t;
 typedef tx_len_t rx_len_t;
 
diff --git a/src/include/link.h b/src/include/link.h
index a791c2f..908c4a9 100644
--- a/src/include/link.h
+++ b/src/include/link.h
@@ -33,10 +33,19 @@
 #include <stdint.h>
 #include "if_ether.h"
 
+/*
+ * Describes an ONET link
+ *
+ * @sockfd: Socket file descriptor
+ * @iface_idx: Interface index in use
+ * @hwaddr: Our hardware address
+ * @last_recv: Hardware address of last received node
+ */
 struct onet_link {
     int sockfd;
     uint32_t iface_idx;
     mac_addr_t hwaddr;
+    mac_addr_t last_recv;
 };
 
 /*