Import sources from 2011-03-30 iso image

1 files changed, 74 insertions, 0 deletions

diff --git a/sys/src/cmd/ip/icmp.h b/sys/src/cmd/ip/icmp.h
new file mode 100755
index 000000000..8ee81a818
--- /dev/null
+++ b/sys/src/cmd/ip/icmp.h
@@ -0,0 +1,74 @@
+/* ICMP for IP v4 and v6 */
+enum
+{
+	/* Packet Types, icmp v4 (rfc 792) */
+	EchoReply	= 0,
+	Unreachable	= 3,
+	SrcQuench	= 4,
+	Redirect	= 5,
+	EchoRequest	= 8,
+	TimeExceed	= 11,
+	InParmProblem	= 12,
+	Timestamp	= 13,
+	TimestampReply	= 14,
+	InfoRequest	= 15,
+	InfoReply	= 16,
+	AddrMaskRequest = 17,
+	AddrMaskReply   = 18,
+	Traceroute	= 30,
+	IPv6WhereAreYou	= 33,
+	IPv6IAmHere	= 34,
+
+	/* packet types, icmp v6 (rfc 2463) */
+
+        /* error messages */
+	UnreachableV6	= 1,
+	PacketTooBigV6	= 2,
+	TimeExceedV6	= 3,
+	ParamProblemV6	= 4,
+
+        /* informational messages (rfc 2461 also) */
+	EchoRequestV6	= 128,
+	EchoReplyV6	= 129,
+	RouterSolicit	= 133,
+	RouterAdvert	= 134,
+	NbrSolicit	= 135,
+	NbrAdvert	= 136,
+	RedirectV6	= 137,
+
+	Maxtype6	= 137,
+
+	ICMP_HDRSIZE	= 8,
+};
+
+typedef struct Ip4hdr Ip4hdr;
+struct Ip4hdr
+{
+	uchar	vihl;		/* Version and header length */
+	uchar	tos;		/* Type of service */
+	uchar	length[2];	/* packet length */
+	uchar	id[2];		/* Identification */
+	uchar	frag[2];	/* Fragment information */
+	uchar	ttl;		/* Time to live */
+	uchar	proto;		/* Protocol */
+	uchar	ipcksum[2];	/* Header checksum */
+	uchar	src[4];		/* Ipv4 source */
+	uchar	dst[4];		/* Ipv4 destination */
+
+	uchar	data[];
+};
+
+// #define IP4HDRSZ offsetof(Ip4hdr, data[0])
+
+/* the icmp payload has the same format in v4 and v6 */
+typedef struct Icmphdr Icmphdr;
+struct Icmphdr {
+	uchar	type;
+	uchar	code;
+	uchar	cksum[2];
+	uchar	icmpid[2];
+	uchar	seq[2];
+	uchar	data[];
+};
+
+// #define ICMPHDRSZ offsetof(Icmphdr, data[0])