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authorNathan Binkert <nate@binkert.org>2009-03-17 12:49:03 -0700
committerNathan Binkert <nate@binkert.org>2009-03-17 12:49:03 -0700
commita102f845404461bb3dade04fe3cdc754949bd248 (patch)
tree00db8cd096009d287ef796f95b2a9221bdb63416 /ext/dnet/ip6.h
parentf3621f11d5fe19557984e5554983a69bb89fb8a2 (diff)
downloadgem5-a102f845404461bb3dade04fe3cdc754949bd248.tar.xz
includes: add ext to the includes path.
move dnet to the correct place so that we use this --HG-- rename : ext/dnet/dnet/addr.h => ext/dnet/addr.h rename : ext/dnet/dnet/arp.h => ext/dnet/arp.h rename : ext/dnet/dnet/blob.h => ext/dnet/blob.h rename : ext/dnet/dnet/eth.h => ext/dnet/eth.h rename : ext/dnet/dnet/fw.h => ext/dnet/fw.h rename : ext/dnet/dnet/icmp.h => ext/dnet/icmp.h rename : ext/dnet/dnet/intf.h => ext/dnet/intf.h rename : ext/dnet/dnet/ip.h => ext/dnet/ip.h rename : ext/dnet/dnet/ip6.h => ext/dnet/ip6.h rename : ext/dnet/dnet/os.h => ext/dnet/os.h rename : ext/dnet/dnet/rand.h => ext/dnet/rand.h rename : ext/dnet/dnet/route.h => ext/dnet/route.h rename : ext/dnet/dnet/tcp.h => ext/dnet/tcp.h rename : ext/dnet/dnet/udp.h => ext/dnet/udp.h
Diffstat (limited to 'ext/dnet/ip6.h')
-rw-r--r--ext/dnet/ip6.h183
1 files changed, 183 insertions, 0 deletions
diff --git a/ext/dnet/ip6.h b/ext/dnet/ip6.h
new file mode 100644
index 000000000..7fae29b47
--- /dev/null
+++ b/ext/dnet/ip6.h
@@ -0,0 +1,183 @@
+/*
+ * ip6.h
+ *
+ * Internet Protocol, Version 6 (RFC 2460).
+ *
+ * Copyright (c) 2002 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: ip6.h,v 1.6 2004/02/23 10:01:15 dugsong Exp $
+ */
+
+#ifndef DNET_IP6_H
+#define DNET_IP6_H
+
+#define IP6_ADDR_LEN 16
+#define IP6_ADDR_BITS 128
+
+#define IP6_HDR_LEN 40 /* IPv6 header length */
+#define IP6_LEN_MIN IP6_HDR_LEN
+#define IP6_LEN_MAX 65535 /* non-jumbo payload */
+
+#define IP6_MTU_MIN 1280 /* minimum MTU (1024 + 256) */
+
+typedef struct ip6_addr {
+ uint8_t data[IP6_ADDR_LEN];
+} ip6_addr_t;
+
+#ifndef __GNUC__
+# define __attribute__(x)
+# pragma pack(1)
+#endif
+
+/*
+ * IPv6 header
+ */
+struct ip6_hdr {
+ union {
+ struct ip6_hdr_ctl {
+ uint32_t ip6_un1_flow; /* 20 bits of flow ID */
+ uint16_t ip6_un1_plen; /* payload length */
+ uint8_t ip6_un1_nxt; /* next header */
+ uint8_t ip6_un1_hlim; /* hop limit */
+ } ip6_un1;
+ uint8_t ip6_un2_vfc; /* 4 bits version, top 4 bits class */
+ } ip6_ctlun;
+ ip6_addr_t ip6_src;
+ ip6_addr_t ip6_dst;
+} __attribute__((__packed__));
+
+#define ip6_vfc ip6_ctlun.ip6_un2_vfc
+#define ip6_flow ip6_ctlun.ip6_un1.ip6_un1_flow
+#define ip6_plen ip6_ctlun.ip6_un1.ip6_un1_plen
+#define ip6_nxt ip6_ctlun.ip6_un1.ip6_un1_nxt /* IP_PROTO_* */
+#define ip6_hlim ip6_ctlun.ip6_un1.ip6_un1_hlim
+
+#define IP6_VERSION 0x60
+#define IP6_VERSION_MASK 0xf0 /* ip6_vfc version */
+
+#if DNET_BYTESEX == DNET_BIG_ENDIAN
+#define IP6_FLOWINFO_MASK 0x0fffffff /* ip6_flow info (28 bits) */
+#define IP6_FLOWLABEL_MASK 0x000fffff /* ip6_flow label (20 bits) */
+#elif DNET_BYTESEX == DNET_LIL_ENDIAN
+#define IP6_FLOWINFO_MASK 0xffffff0f /* ip6_flow info (28 bits) */
+#define IP6_FLOWLABEL_MASK 0xffff0f00 /* ip6_flow label (20 bits) */
+#endif
+
+/*
+ * Hop limit (ip6_hlim)
+ */
+#define IP6_HLIM_DEFAULT 64
+#define IP6_HLIM_MAX 255
+
+/*
+ * Preferred extension header order from RFC 2460, 4.1:
+ *
+ * IP_PROTO_IPV6, IP_PROTO_HOPOPTS, IP_PROTO_DSTOPTS, IP_PROTO_ROUTING,
+ * IP_PROTO_FRAGMENT, IP_PROTO_AH, IP_PROTO_ESP, IP_PROTO_DSTOPTS, IP_PROTO_*
+ */
+
+/*
+ * Routing header data (IP_PROTO_ROUTING)
+ */
+struct ip6_ext_data_routing {
+ uint8_t type; /* routing type */
+ uint8_t segleft; /* segments left */
+ /* followed by routing type specific data */
+} __attribute__((__packed__));
+
+struct ip6_ext_data_routing0 {
+ uint8_t type; /* always zero */
+ uint8_t segleft; /* segments left */
+ uint8_t reserved; /* reserved field */
+ uint8_t slmap[3]; /* strict/loose bit map */
+ ip6_addr_t addr[1]; /* up to 23 addresses */
+} __attribute__((__packed__));
+
+/*
+ * Fragment header data (IP_PROTO_FRAGMENT)
+ */
+struct ip6_ext_data_fragment {
+ uint16_t offlg; /* offset, reserved, and flag */
+ uint32_t ident; /* identification */
+} __attribute__((__packed__));
+
+/*
+ * Fragmentation offset, reserved, and flags (offlg)
+ */
+#if DNET_BYTESEX == DNET_BIG_ENDIAN
+#define IP6_OFF_MASK 0xfff8 /* mask out offset from offlg */
+#define IP6_RESERVED_MASK 0x0006 /* reserved bits in offlg */
+#define IP6_MORE_FRAG 0x0001 /* more-fragments flag */
+#elif DNET_BYTESEX == DNET_LIL_ENDIAN
+#define IP6_OFF_MASK 0xf8ff /* mask out offset from offlg */
+#define IP6_RESERVED_MASK 0x0600 /* reserved bits in offlg */
+#define IP6_MORE_FRAG 0x0100 /* more-fragments flag */
+#endif
+
+/*
+ * Option types, for IP_PROTO_HOPOPTS, IP_PROTO_DSTOPTS headers
+ */
+#define IP6_OPT_PAD1 0x00 /* 00 0 00000 */
+#define IP6_OPT_PADN 0x01 /* 00 0 00001 */
+#define IP6_OPT_JUMBO 0xC2 /* 11 0 00010 = 194 */
+#define IP6_OPT_JUMBO_LEN 6
+#define IP6_OPT_RTALERT 0x05 /* 00 0 00101 */
+#define IP6_OPT_RTALERT_LEN 4
+#define IP6_OPT_RTALERT_MLD 0 /* Datagram contains an MLD message */
+#define IP6_OPT_RTALERT_RSVP 1 /* Datagram contains an RSVP message */
+#define IP6_OPT_RTALERT_ACTNET 2 /* contains an Active Networks msg */
+#define IP6_OPT_LEN_MIN 2
+
+#define IP6_OPT_TYPE(o) ((o) & 0xC0) /* high 2 bits of opt_type */
+#define IP6_OPT_TYPE_SKIP 0x00 /* continue processing on failure */
+#define IP6_OPT_TYPE_DISCARD 0x40 /* discard packet on failure */
+#define IP6_OPT_TYPE_FORCEICMP 0x80 /* discard and send ICMP on failure */
+#define IP6_OPT_TYPE_ICMP 0xC0 /* ...only if non-multicast dst */
+
+#define IP6_OPT_MUTABLE 0x20 /* option data may change en route */
+
+/*
+ * Extension header (chained via {ip6,ext}_nxt, following IPv6 header)
+ */
+struct ip6_ext_hdr {
+ uint8_t ext_nxt; /* next header */
+ uint8_t ext_len; /* following length in units of 8 octets */
+ union {
+ struct ip6_ext_data_routing routing;
+ struct ip6_ext_data_fragment fragment;
+ } ext_data;
+} __attribute__((__packed__));
+
+#ifndef __GNUC__
+# pragma pack()
+#endif
+
+/*
+ * Reserved addresses
+ */
+#define IP6_ADDR_UNSPEC \
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+#define IP6_ADDR_LOOPBACK \
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01"
+
+#define ip6_pack_hdr(hdr, fc, fl, plen, nxt, hlim, src, dst) do { \
+ struct ip6_hdr *ip6 = (struct ip6_hdr *)(hdr); \
+ ip6->ip6_flow = htonl(((uint32_t)(fc) << 28) & \
+ (IP6_FLOWLABEL_MASK | (fl))); \
+ ip6->ip6_vfc = (IP6_VERSION | ((fc) >> 4)); \
+ ip6->ip6_plen = htons((plen)); \
+ ip6->ip6_nxt = (nxt); ip6->ip6_hlim = (hlim); \
+ memmove(&ip6->ip6_src, &(src), IP6_ADDR_LEN); \
+ memmove(&ip6->ip6_dst, &(dst), IP6_ADDR_LEN); \
+} while (0);
+
+__BEGIN_DECLS
+char *ip6_ntop(const ip6_addr_t *ip6, char *dst, size_t size);
+int ip6_pton(const char *src, ip6_addr_t *dst);
+char *ip6_ntoa(const ip6_addr_t *ip6);
+#define ip6_aton ip6_pton
+
+void ip6_checksum(void *buf, size_t len);
+__END_DECLS
+
+#endif /* DNET_IP6_H */