mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-30 15:00:34 +00:00
121d07125b
Header guard symbols should match their file name to make guard collisions less likely. Offenders found with scripts/clean-header-guards.pl -vn. Cleaned up with scripts/clean-header-guards.pl, followed by some renaming of new guard symbols picked by the script to better ones. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
222 lines
7.1 KiB
C
222 lines
7.1 KiB
C
/*
|
|
* Copyright (c) 2013
|
|
* Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne.
|
|
*/
|
|
|
|
#ifndef SLIRP_IP6_ICMP_H
|
|
#define SLIRP_IP6_ICMP_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 */
|
|
#define ndpopt_linklayer ndpopt_body.linklayer_addr
|
|
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;
|
|
#define ndpopt_prefixinfo ndpopt_body.prefixinfo
|
|
struct rdnss {
|
|
uint16_t reserved;
|
|
uint32_t lifetime;
|
|
struct in6_addr addr;
|
|
} QEMU_PACKED rdnss;
|
|
#define ndpopt_rdnss ndpopt_body.rdnss
|
|
} ndpopt_body;
|
|
} 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 */
|
|
#define NDPOPT_RDNSS 25 /* Recursive DNS Server Address */
|
|
|
|
/* NDP options size, in octets. */
|
|
#define NDPOPT_LINKLAYER_LEN 8
|
|
#define NDPOPT_PREFIXINFO_LEN 32
|
|
#define NDPOPT_RDNSS_LEN 24
|
|
|
|
/*
|
|
* 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
|