From 06b5132fdcac6b79ccf2f97de658235b28610bd7 Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Tue, 17 Feb 2009 06:59:15 +0000
Subject: [icmp] Add support for responding to pings

---
 src/include/gpxe/errfile.h |  1 +
 src/include/gpxe/icmp.h    | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 src/include/gpxe/icmp.h

(limited to 'src/include')

diff --git a/src/include/gpxe/errfile.h b/src/include/gpxe/errfile.h
index 90c21a7e3..a6181453e 100644
--- a/src/include/gpxe/errfile.h
+++ b/src/include/gpxe/errfile.h
@@ -139,6 +139,7 @@
 #define ERRFILE_slam			( ERRFILE_NET | 0x00160000 )
 #define ERRFILE_ib_sma			( ERRFILE_NET | 0x00170000 )
 #define ERRFILE_ib_packet		( ERRFILE_NET | 0x00180000 )
+#define ERRFILE_icmp			( ERRFILE_NET | 0x00190000 )
 
 #define ERRFILE_image		      ( ERRFILE_IMAGE | 0x00000000 )
 #define ERRFILE_elf		      ( ERRFILE_IMAGE | 0x00010000 )
diff --git a/src/include/gpxe/icmp.h b/src/include/gpxe/icmp.h
new file mode 100644
index 000000000..49ade2f2e
--- /dev/null
+++ b/src/include/gpxe/icmp.h
@@ -0,0 +1,23 @@
+#ifndef _GPXE_ICMP_H
+#define _GPXE_ICMP_H
+
+/** @file
+ *
+ * ICMP protocol
+ *
+ */
+
+/** An ICMP header */
+struct icmp_header {
+	/** Type */
+	uint8_t type;
+	/** Code */
+	uint8_t code;
+	/** Checksum */
+	uint16_t chksum;
+} __attribute__ (( packed ));
+
+#define ICMP_ECHO_RESPONSE 0
+#define ICMP_ECHO_REQUEST 8
+
+#endif /* _GPXE_ICMP_H */
-- 
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