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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /inet/netinet/ip6.h
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'inet/netinet/ip6.h')
-rw-r--r--inet/netinet/ip6.h89
1 files changed, 80 insertions, 9 deletions
diff --git a/inet/netinet/ip6.h b/inet/netinet/ip6.h
index 7045836df6..bef2af2f5a 100644
--- a/inet/netinet/ip6.h
+++ b/inet/netinet/ip6.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-1997, 2001, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1991-1997, 2001, 2003, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -89,7 +89,8 @@ struct ip6_rthdr0
uint8_t ip6r0_segleft; /* segments left */
uint8_t ip6r0_reserved; /* reserved field */
uint8_t ip6r0_slmap[3]; /* strict/loose bit map */
- struct in6_addr ip6r0_addr[1]; /* up to 23 addresses */
+ /* followed by up to 127 struct in6_addr */
+ struct in6_addr ip6r0_addr[0];
};
/* Fragment header */
@@ -101,18 +102,88 @@ struct ip6_frag
uint32_t ip6f_ident; /* identification */
};
-#if BYTE_ORDER == BIG_ENDIAN
-#define IP6F_OFF_MASK 0xfff8 /* mask out offset from _offlg */
-#define IP6F_RESERVED_MASK 0x0006 /* reserved bits in ip6f_offlg */
-#define IP6F_MORE_FRAG 0x0001 /* more-fragments flag */
+#if BYTE_ORDER == BIG_ENDIAN
+# define IP6F_OFF_MASK 0xfff8 /* mask out offset from _offlg */
+# define IP6F_RESERVED_MASK 0x0006 /* reserved bits in ip6f_offlg */
+# define IP6F_MORE_FRAG 0x0001 /* more-fragments flag */
#else /* BYTE_ORDER == LITTLE_ENDIAN */
-#define IP6F_OFF_MASK 0xf8ff /* mask out offset from _offlg */
-#define IP6F_RESERVED_MASK 0x0600 /* reserved bits in ip6f_offlg */
-#define IP6F_MORE_FRAG 0x0100 /* more-fragments flag */
+# define IP6F_OFF_MASK 0xf8ff /* mask out offset from _offlg */
+# define IP6F_RESERVED_MASK 0x0600 /* reserved bits in ip6f_offlg */
+# define IP6F_MORE_FRAG 0x0100 /* more-fragments flag */
#endif
+/* IPv6 options */
+struct ip6_opt
+ {
+ uint8_t ip6o_type;
+ uint8_t ip6o_len;
+ };
+
+/* The high-order 3 bits of the option type define the behavior
+ * when processing an unknown option and whether or not the option
+ * content changes in flight.
+ */
+#define IP6OPT_TYPE(o) ((o) & 0xc0)
+#define IP6OPT_TYPE_SKIP 0x00
+#define IP6OPT_TYPE_DISCARD 0x40
+#define IP6OPT_TYPE_FORCEICMP 0x80
+#define IP6OPT_TYPE_ICMP 0xc0
+#define IP6OPT_TYPE_MUTABLE 0x20
+
/* Special option types for padding. */
#define IP6OPT_PAD1 0
#define IP6OPT_PADN 1
+#define IP6OPT_JUMBO 0xc2
+#define IP6OPT_NSAP_ADDR 0xc3
+#define IP6OPT_TUNNEL_LIMIT 0x04
+#define IP6OPT_ROUTER_ALERT 0x05
+
+/* Jumbo Payload Option */
+struct ip6_opt_jumbo
+ {
+ uint8_t ip6oj_type;
+ uint8_t ip6oj_len;
+ uint8_t ip6oj_jumbo_len[4];
+ };
+#define IP6OPT_JUMBO_LEN 6
+
+/* NSAP Address Option */
+struct ip6_opt_nsap
+ {
+ uint8_t ip6on_type;
+ uint8_t ip6on_len;
+ uint8_t ip6on_src_nsap_len;
+ uint8_t ip6on_dst_nsap_len;
+ /* followed by source NSAP */
+ /* followed by destination NSAP */
+ };
+
+/* Tunnel Limit Option */
+struct ip6_opt_tunnel
+ {
+ uint8_t ip6ot_type;
+ uint8_t ip6ot_len;
+ uint8_t ip6ot_encap_limit;
+ };
+
+/* Router Alert Option */
+struct ip6_opt_router
+ {
+ uint8_t ip6or_type;
+ uint8_t ip6or_len;
+ uint8_t ip6or_value[2];
+ };
+
+/* Router alert values (in network byte order) */
+#if BYTE_ORDER == BIG_ENDIAN
+# define IP6_ALERT_MLD 0x0000
+# define IP6_ALERT_RSVP 0x0001
+# define IP6_ALERT_AN 0x0002
+#else /* BYTE_ORDER == LITTLE_ENDING */
+# define IP6_ALERT_MLD 0x0000
+# define IP6_ALERT_RSVP 0x0100
+# define IP6_ALERT_AN 0x0200
+#endif
+
#endif /* netinet/ip6.h */