--- /dev/null
+/*
+ * Copyright (c) 2013
+ * Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne.
+ */
+
+#ifndef SLIRP_NETINET_ICMP6_H_
+#define SLIRP_NETINET_ICMP6_H_
+
+/*
+ * Interface Control Message Protocol version 6 Definitions.
+ * Per RFC 4443, March 2006.
+ *
+ * Network Discover Protocol Definitions.
+ * Per RFC 4861, September 2007.
+ */
+
+struct icmp6_echo { /* Echo Messages */
+ uint16_t id;
+ uint16_t seq_num;
+};
+
+union icmp6_error_body {
+ uint32_t unused;
+ uint32_t pointer;
+ uint32_t mtu;
+};
+
+/*
+ * NDP Messages
+ */
+struct ndp_rs { /* Router Solicitation Message */
+ uint32_t reserved;
+};
+
+struct ndp_ra { /* Router Advertisement Message */
+ uint8_t chl; /* Cur Hop Limit */
+#ifdef HOST_WORDS_BIGENDIAN
+ uint8_t
+ M:1,
+ O:1,
+ reserved:6;
+#else
+ uint8_t
+ reserved:6,
+ O:1,
+ M:1;
+#endif
+ uint16_t lifetime; /* Router Lifetime */
+ uint32_t reach_time; /* Reachable Time */
+ uint32_t retrans_time; /* Retrans Timer */
+} QEMU_PACKED;
+
+struct ndp_ns { /* Neighbor Solicitation Message */
+ uint32_t reserved;
+ struct in6_addr target; /* Target Address */
+} QEMU_PACKED;
+
+struct ndp_na { /* Neighbor Advertisement Message */
+#ifdef HOST_WORDS_BIGENDIAN
+ uint32_t
+ R:1, /* Router Flag */
+ S:1, /* Solicited Flag */
+ O:1, /* Override Flag */
+ reserved_hi:5,
+ reserved_lo:24;
+#else
+ uint32_t
+ reserved_hi:5,
+ O:1,
+ S:1,
+ R:1,
+ reserved_lo:24;
+#endif
+ struct in6_addr target; /* Target Address */
+} QEMU_PACKED;
+
+struct ndp_redirect {
+ uint32_t reserved;
+ struct in6_addr target; /* Target Address */
+ struct in6_addr dest; /* Destination Address */
+} QEMU_PACKED;
+
+/*
+ * Structure of an icmpv6 header.
+ */
+struct icmp6 {
+ uint8_t icmp6_type; /* type of message, see below */
+ uint8_t icmp6_code; /* type sub code */
+ uint16_t icmp6_cksum; /* ones complement cksum of struct */
+ union {
+ union icmp6_error_body error_body;
+ struct icmp6_echo echo;
+ struct ndp_rs ndp_rs;
+ struct ndp_ra ndp_ra;
+ struct ndp_ns ndp_ns;
+ struct ndp_na ndp_na;
+ struct ndp_redirect ndp_redirect;
+ } icmp6_body;
+#define icmp6_err icmp6_body.error_body
+#define icmp6_echo icmp6_body.echo
+#define icmp6_nrs icmp6_body.ndp_rs
+#define icmp6_nra icmp6_body.ndp_ra
+#define icmp6_nns icmp6_body.ndp_ns
+#define icmp6_nna icmp6_body.ndp_na
+#define icmp6_redirect icmp6_body.ndp_redirect
+} QEMU_PACKED;
+
+#define ICMP6_MINLEN 4
+#define ICMP6_ERROR_MINLEN 8
+#define ICMP6_ECHO_MINLEN 8
+#define ICMP6_NDP_RS_MINLEN 8
+#define ICMP6_NDP_RA_MINLEN 16
+#define ICMP6_NDP_NS_MINLEN 24
+#define ICMP6_NDP_NA_MINLEN 24
+#define ICMP6_NDP_REDIRECT_MINLEN 40
+
+/*
+ * NDP Options
+ */
+struct ndpopt {
+ uint8_t ndpopt_type; /* Option type */
+ uint8_t ndpopt_len; /* /!\ In units of 8 octets */
+ union {
+ unsigned char linklayer_addr[6]; /* Source/Target Link-layer */
+ struct prefixinfo { /* Prefix Information */
+ uint8_t prefix_length;
+#ifdef HOST_WORDS_BIGENDIAN
+ uint8_t L:1, A:1, reserved1:6;
+#else
+ uint8_t reserved1:6, A:1, L:1;
+#endif
+ uint32_t valid_lt; /* Valid Lifetime */
+ uint32_t pref_lt; /* Preferred Lifetime */
+ uint32_t reserved2;
+ struct in6_addr prefix;
+ } QEMU_PACKED prefixinfo;
+ } ndpopt_body;
+#define ndpopt_linklayer ndpopt_body.linklayer_addr
+#define ndpopt_prefixinfo ndpopt_body.prefixinfo
+} QEMU_PACKED;
+
+/* NDP options type */
+#define NDPOPT_LINKLAYER_SOURCE 1 /* Source Link-Layer Address */
+#define NDPOPT_LINKLAYER_TARGET 2 /* Target Link-Layer Address */
+#define NDPOPT_PREFIX_INFO 3 /* Prefix Information */
+
+/* NDP options size, in octets. */
+#define NDPOPT_LINKLAYER_LEN 8
+#define NDPOPT_PREFIXINFO_LEN 32
+
+/*
+ * Definition of type and code field values.
+ * Per https://www.iana.org/assignments/icmpv6-parameters/icmpv6-parameters.xml
+ * Last Updated 2012-11-12
+ */
+
+/* Errors */
+#define ICMP6_UNREACH 1 /* Destination Unreachable */
+#define ICMP6_UNREACH_NO_ROUTE 0 /* no route to dest */
+#define ICMP6_UNREACH_DEST_PROHIB 1 /* com with dest prohibited */
+#define ICMP6_UNREACH_SCOPE 2 /* beyond scope of src addr */
+#define ICMP6_UNREACH_ADDRESS 3 /* address unreachable */
+#define ICMP6_UNREACH_PORT 4 /* port unreachable */
+#define ICMP6_UNREACH_SRC_FAIL 5 /* src addr failed */
+#define ICMP6_UNREACH_REJECT_ROUTE 6 /* reject route to dest */
+#define ICMP6_UNREACH_SRC_HDR_ERROR 7 /* error in src routing header */
+#define ICMP6_TOOBIG 2 /* Packet Too Big */
+#define ICMP6_TIMXCEED 3 /* Time Exceeded */
+#define ICMP6_TIMXCEED_INTRANS 0 /* hop limit exceeded in transit */
+#define ICMP6_TIMXCEED_REASS 1 /* ttl=0 in reass */
+#define ICMP6_PARAMPROB 4 /* Parameter Problem */
+#define ICMP6_PARAMPROB_HDR_FIELD 0 /* err header field */
+#define ICMP6_PARAMPROB_NXTHDR_TYPE 1 /* unrecognized Next Header type */
+#define ICMP6_PARAMPROB_IPV6_OPT 2 /* unrecognized IPv6 option */
+
+/* Informational Messages */
+#define ICMP6_ECHO_REQUEST 128 /* Echo Request */
+#define ICMP6_ECHO_REPLY 129 /* Echo Reply */
+#define ICMP6_NDP_RS 133 /* Router Solicitation (NDP) */
+#define ICMP6_NDP_RA 134 /* Router Advertisement (NDP) */
+#define ICMP6_NDP_NS 135 /* Neighbor Solicitation (NDP) */
+#define ICMP6_NDP_NA 136 /* Neighbor Advertisement (NDP) */
+#define ICMP6_NDP_REDIRECT 137 /* Redirect Message (NDP) */
+
+/*
+ * Router Configuration Variables (rfc4861#section-6)
+ */
+#define NDP_IsRouter 1
+#define NDP_AdvSendAdvertisements 1
+#define NDP_MaxRtrAdvInterval 600000
+#define NDP_MinRtrAdvInterval ((NDP_MaxRtrAdvInterval >= 9) ? \
+ NDP_MaxRtrAdvInterval / 3 : \
+ NDP_MaxRtrAdvInterval)
+#define NDP_AdvManagedFlag 0
+#define NDP_AdvOtherConfigFlag 0
+#define NDP_AdvLinkMTU 0
+#define NDP_AdvReachableTime 0
+#define NDP_AdvRetransTime 0
+#define NDP_AdvCurHopLimit 64
+#define NDP_AdvDefaultLifetime ((3 * NDP_MaxRtrAdvInterval) / 1000)
+#define NDP_AdvValidLifetime 86400
+#define NDP_AdvOnLinkFlag 1
+#define NDP_AdvPrefLifetime 14400
+#define NDP_AdvAutonomousFlag 1
+
+void icmp6_init(Slirp *slirp);
+void icmp6_cleanup(Slirp *slirp);
+void icmp6_input(struct mbuf *);
+void icmp6_send_error(struct mbuf *m, uint8_t type, uint8_t code);
+void ndp_send_ra(Slirp *slirp);
+void ndp_send_ns(Slirp *slirp, struct in6_addr addr);
+
+#endif
Code Review / kvmfornfv.git / blobdiff