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#ifndef lib_pcap_pcap_h
#include <pcap.h>
#endif
#include <netdb.h>
#include <net/if.h> /* For IFNAMSIZ */
/* General constants */
#define SUCCESS 1
#define FAILURE 0
#define TRUE 1
#define FALSE 0
#define ADDR_AUTO 2
#define LUI long unsigned int
#define CHAR_CR 0x0d
#define CHAR_LF 0x0a
#define DATA_BUFFER_LEN 1000
#define LINE_BUFFER_SIZE 80
#define MAX_STRING_SIZE 10 /* For limiting strncmp */
#define MAX_RANGE_STR_LEN 79 /* For function that check for address ranges in string */
#define ETH_ALEN 6 /* Octets in one ethernet addr */
#define ETH_HLEN 14 /* Total octets in header. */
#define ETH_DATA_LEN 1500 /* Max. octets in payload */
#define ETHERTYPE_IPV6 0x86dd /* IP protocol version 6 */
#define ETHER_ADDR_LEN ETH_ALEN /* size of ethernet addr */
#define ETHER_HDR_LEN ETH_HLEN /* total octets in header */
#define ETHER_ADDR_PLEN 18 /* Includes termination byte */
#define ETHER_ALLNODES_LINK_ADDR "33:33:00:00:00:01"
#define ETHER_ALLROUTERS_LINK_ADDR "33:33:00:00:00:02"
#define MIN_IPV6_HLEN 40
#define MIN_IPV6_MTU 1280
#define MIN_TCP_HLEN 20
#define MIN_UDP_HLEN 8
#define MIN_ICMP6_HLEN 8
#define MIN_HBH_LEN 8
#define MIN_EXT_HLEN 8
#define SLLA_OPT_LEN 1
#define TLLA_OPT_LEN 1
#define MIN_DST_OPT_HDR_SIZE 8
#define MAX_SLLA_OPTION 100
#define MAX_TLLA_OPTION 256
#define IFACE_LENGTH IFNAMSIZ
#define ALL_NODES_MULTICAST_ADDR "FF02::1"
#define ALL_ROUTERS_MULTICAST_ADDR "FF02::2"
#define LOOPBACK_ADDR "::1"
#define SOLICITED_NODE_MULTICAST_PREFIX "FF02:0:0:0:0:1:FF00::"
/* Support for IPv6 extension headers */
#define FRAG_HDR_SIZE 8
#define MAX_IPV6_PAYLOAD 65535
#define MAX_DST_OPT_HDR 256
#define MAX_DST_OPT_U_HDR MAX_DST_OPT_HDR
#define MAX_HBH_OPT_HDR MAX_DST_OPT_HDR
/* Filter Constants */
#define MAX_BLOCK_SRC 50
#define MAX_BLOCK_DST 50
#define MAX_BLOCK_TARGET 50
#define MAX_BLOCK_LINK_SRC 50
#define MAX_BLOCK_LINK_DST 50
struct filters{
/* Block Filters */
struct in6_addr *blocksrc;
struct in6_addr *blockdst;
struct in6_addr *blocktarget;
uint8_t *blocksrclen;
uint8_t *blockdstlen;
uint8_t *blocktargetlen;
struct ether_addr *blocklinksrc;
struct ether_addr *blocklinkdst;
unsigned int nblocksrc;
unsigned int nblockdst;
unsigned int nblocktarget;
unsigned int nblocklinksrc;
unsigned int nblocklinkdst;
/* Accept Filters */
struct in6_addr *acceptsrc;
struct in6_addr *acceptdst;
struct in6_addr *accepttarget;
uint8_t *acceptsrclen;
uint8_t *acceptdstlen;
uint8_t *accepttargetlen;
unsigned char acceptfilters_f;
struct ether_addr *acceptlinksrc;
struct ether_addr *acceptlinkdst;
unsigned int nacceptsrc;
unsigned int nacceptdst;
unsigned int naccepttarget;
unsigned int nacceptlinksrc;
unsigned int nacceptlinkdst;
};
#define MAX_ACCEPT_SRC 50
#define MAX_ACCEPT_DST 50
#define MAX_ACCEPT_TARGET 50
#define MAX_ACCEPT_LINK_SRC 50
#define MAX_ACCEPT_LINK_DST 50
#define ACCEPTED 1
#define BLOCKED 0
/* Constants used with the libcap functions */
#define PCAP_SNAP_LEN 65535
#define PCAP_PROMISC 1
#define PCAP_OPT 1
#ifndef PCAP_NETMASK_UNKNOWN
#define PCAP_NETMASK_UNKNOWN 0xffffffff
#endif
/* XXX:
At some point we were setting the timeout differently for different platforms. Should double-check, but doesn't seem to make sense.
#if defined (__FreeBSD__) || defined(__NetBSD__) || defined (__OpenBSD__) || defined(__APPLE__) || defined(__FreeBSD_kernel__) || defined(sun) || defined(__sun)
#define PCAP_TIMEOUT 1
#else
#define PCAP_TIMEOUT 0
#endif
*/
#define PCAP_TIMEOUT 1
#define PCAP_IPV6_FILTER "ip6"
#define PCAP_TCPV6_FILTER "ip6 and tcp"
#define PCAP_UDPV6_FILTER "ip6 and udp"
#define PCAP_ICMPV6_FILTER "icmp6"
#define PCAP_ICMPV6_NA_FILTER "icmp6 and ip6[7]==255 and ip6[40]==136 and ip6[41]==0"
/* XXX: Should check the na6 code: we fail to receive packets (Ubuntu, at least) when this filter is set
#define PCAP_ICMPV6_NS_FILTER "icmp6 and ((ip6[7]==255 and ip6[40]==135 and ip6[41]==0) or ip6[40]==4)"
*/
#define PCAP_ICMPV6_NS_FILTER "ip6"
#define PCAP_ICMPV6_RA_FILTER "icmp6 and ip6[7]==255 and ip6[40]==134 and ip6[41]==0"
#define PCAP_ICMPV6_RANS_FILTER "icmp6 and ip6[7]==255 and ((ip6[40]==134 and ip6[41]==0) or (ip6[40]==135 and ip6[41]==0))"
#define PCAP_TCPIPV6_NS_FILTER "ip6 and (tcp or (icmp6 and ip6[7]==255 and ip6[40]==135 and ip6[41]==0))"
/* #define PCAP_TCPIPV6_NS_FILTER "ip6" */
#define PCAP_UDPIPV6_NS_FILTER "ip6 and (udp or (icmp6 and ip6[7]==255 and ip6[40]==135 and ip6[41]==0))"
#define PCAP_ICMPV6_NI_QUERY "icmp6 and ip6[40]==139"
#define PCAP_ICMPV6_NI_REPLY "icmp6 and ip6[40]==140"
#define PCAP_NOPACKETS_FILTER "not ip and not ip6 and not arp"
#define PCAP_ICMPV6NSEXCEEDED_FILTER "icmp6 and ((ip6[40]==3 and ip6[41]==1) or (ip6[40]==129 and ip6[41]==0))"
#define PCAP_ICMPV6_RS_FILTER "icmp6 and ip6[7]==255 and ip6[40]==133 and ip6[41]==0"
#define PCAP_ICMPV6_NSECHOEXCEEDED_FILTER "icmp6 and ((ip6[40]==3 and ip6[41]==1) or (ip6[40]==129 and ip6[41]==0) or (ip6[7]==255 and ip6[40]==135 and ip6[41]==0))"
/* Filter to receive Neighbor Solicitations and Fragmented packets */
#define PCAP_ICMPV6NSFRAG_FILTER "(ip6[7]==255 and icmp6 and ip6[40]==135 and ip6[41]==0) or (ip6 and ip6[6]==44)"
#define PCAP_NSTCP_FILTER "(ip6[7]==255 and icmp6 and ip6[40]==135 and ip6[41]==0) or (ip6 and ip6[6]==6)"
/* Filter to receive Neighbor Solicitations and Fragmented packets */
#define PCAP_ICMPV6NSFRAG_FILTER "(ip6[7]==255 and icmp6 and ip6[40]==135 and ip6[41]==0) or (ip6 and ip6[6]==44)"
/*
#define PCAP_ICMPV6NSEXCEEDED_FILTER "icmp6 and ((ip6[7]==255 and ip6[40]==135 and ip6[41]==0) or (ip6[40]==3 and ip6[41]==1) or (ip6[40]==129 and ip6[41]==0))"
*/
#define PCAP_TCPIPV6_FILTER "ip6 and tcp"
/* Originally from scan6.h */
#define PCAP_ICMPV6_NA_FILTER "icmp6 and ip6[7]==255 and ip6[40]==136 and ip6[41]==0"
#define PCAP_ICMPV6_RANS_FILTER "icmp6 and ip6[7]==255 and ((ip6[40]==134 and ip6[41]==0) or (ip6[40]==135 and ip6[41]==0))"
#define PCAP_ICMPV6_ERNS_FILTER "icmp6 and ((ip6[40]==129 and ip6[41]==0) or (ip6[40]==135 and ip6[41]==0))"
#define PCAP_ICMPV6_ERRORNS_FILTER "icmp6 and ((ip6[40]==4) or (ip6[40]==135 and ip6[41]==0))"
#define PCAP_ICMPV6_ERQNSNA_FILTER "icmp6 and ((ip6[40]==129 and ip6[41]==0) or ((ip6[40]==135 or ip6[40]==136) and ip6[41]==0 and ip6[7]==255))"
#define PCAP_ICMPV6_ERRORNSNA_FILTER "icmp6 and ((ip6[40]==4) or ((ip6[7]==255 and ip6[41]==0) and (ip6[40]==135 or ip6[40]==136)))"
#define PCAP_TCP_NSNA_FILTER "(ip6 and tcp) or (icmp6 and ip6[7]==255 and ip6[41]==0 and (ip6[40]==135 or ip6[40]==136))"
#define PCAP_UDP_NSNA_FILTER "(ip6 and (udp or icmp6)) or (icmp6 and ip6[7]==255 and ip6[41]==0 and (ip6[40]==135 or ip6[40]==136))"
#define PCAP_TCP_UDP_NSNA_FILTER "(ip6 and (tcp or udp or icmp6)) or (icmp6 and ip6[7]==255 and ip6[41]==0 and (ip6[40]==135 or ip6[40]==136))"
/* Constants used for Router Discovery */
#define MAX_PREFIXES_ONLINK 100
#define MAX_PREFIXES_AUTO 100
#define MAX_LOCAL_ADDRESSES 256
/* Constants used for sending Router Advertisements */
#define MAX_PREFIX_OPTION 256
#define MAX_ROUTE_OPTION MAX_PREFIX_OPTION
#define MAX_MTU_OPTION MAX_PREFIX_OPTION
#define MAX_RDNSS_OPTION MAX_PREFIX_OPTION
#define MAX_RDNSS_OPT_ADDRS 127
#define DEFAULT_PREFIX_PREFERRED 0xffffffff
#define DEFAULT_PREFIX_VALID 0xffffffff
#define DEFAULT_CURHOP 255
#define DEFAULT_ROUTER_LIFETIME 9000
#define DEFAULT_ROUTER_REACHABLE 0Xffffffff
#define DEFAULT_ROUTER_RETRANS 4000
#define DEFAULT_ROUTER_PREFERENCE 0x08
#define DEFAULT_RDNSS_LIFETIME 9000
#define DEFAULT_ROUTE_OPT_LIFE 0xffffffff
#define DEFAULT_ROUTE_OPT_PREF 0x08
/* For Fragment ID or Flow Label assessment */
#define ID_ASSESS_TIMEOUT 5
#define NSAMPLES 40
#define FIXED_ORIGIN 1
#define MULTI_ORIGIN 2
struct ether_addr{
uint8_t a[ETHER_ADDR_LEN];
} __attribute__ ((__packed__));
/* For DLT_NULL encapsulation */
struct dlt_null
{
uint32_t family; /* Protocol Family */
} __attribute__ ((__packed__));
/* IPv6 options
Most stacks define "struct ip_opt" for this purpose. But ias has proved to be painful to use this
structure in Mac OS, since its definition seems to depend on the Xcode version, which is hard
(if at all possible) to check at compile time. As a workaround, we define our own data type for
IPv6 options
*/
struct ip6_option{
uint8_t ip6o_type;
uint8_t ip6o_len;
} __attribute__ ((__packed__));
struct nd_opt_slla{
uint8_t type;
uint8_t length;
uint8_t address[6];
} __attribute__ ((__packed__));
struct nd_opt_tlla{
uint8_t type;
uint8_t length;
uint8_t address[6];
} __attribute__ ((__packed__));
struct nd_opt_route_info_l{
uint8_t nd_opt_ri_type;
uint8_t nd_opt_ri_len;
uint8_t nd_opt_ri_prefix_len;
uint8_t nd_opt_ri_rsvd_pref_rsvd;
uint32_t nd_opt_ri_lifetime;
struct in6_addr nd_opt_ri_prefix;
} __attribute__ ((__packed__));
struct nd_opt_rdnss_l{
uint8_t nd_opt_rdnss_type;
uint8_t nd_opt_rdnss_len;
uint16_t nd_opt_rdnss_rsvd;
uint32_t nd_opt_rdnss_lifetime;
struct in6_addr nd_opt_rdnss_addr[];
} __attribute__ ((__packed__));
struct ipv6pseudohdr{
struct in6_addr srcaddr;
struct in6_addr dstaddr;
uint32_t len;
uint8_t zero[3];
uint8_t nh;
} __attribute__ ((__packed__));
/* 10Mb/s ethernet header */
struct ether_header{
struct ether_addr dst; /* destination eth addr */
struct ether_addr src; /* source ether addr */
uint16_t ether_type; /* packet type ID field */
} __attribute__ ((__packed__));
/* Generic extension header. */
struct ip6_eh{
uint8_t eh_nxt; /* next header. */
uint8_t eh_len; /* length in units of 8 octets. */
} __attribute__ ((__packed__));
/* Solaris does not define this one */
#if defined(sun) || defined(__sun)
struct ip6_ext {
uint8_t ip6e_nxt;
uint8_t ip6e_len;
} __attribute__ ((__packed__));
#endif
typedef uint32_t tcp_seq;
/* XXX: To be removed
* Definitions required for OSX 10.6.8 with Xcode 3.2.6
*/
/*
#ifndef __BYTE_ORDER__
#ifdef __LITTLE_ENDIAN__
#define __BYTE_ORDER__ __LITTLE_ENDIAN__
#elif defined(__BIG_ENDIAN__)
#define __BYTE_ORDER__ __BIG_ENDIAN__
#endif
#endif
#ifndef __ORDER_LITTLE_ENDIAN__
#define __ORDER_LITTLE_ENDIAN__ __LITTLE_ENDIAN__
#endif
#ifndef __ORDER_BIG_ENDIAN__
#define __ORDER_BIG_ENDIAN__ __BIG_ENDIAN__
#endif
*/
/*
Different OSes employ different constants fo specifying the byte order.
We employ the native Linux one, and if not available, map the BSD, Mac
OS, or Solaris into the Linux one.
*/
#ifndef __BYTE_ORDER
#define __LITTLE_ENDIAN 1234
#define __BIG_ENDIAN 4321
/* Mac OS */
#if defined (__BYTE_ORDER__)
# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#define __BYTE_ORDER __LITTLE_ENDIAN
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define __BYTE_ORDER __BIG_ENDIAN
#endif
/* BSD */
#elif defined(_BYTE_ORDER)
#if _BYTE_ORDER == _LITTLE_ENDIAN
#define __BYTE_ORDER __LITTLE_ENDIAN
#elif _BYTE_ORDER == _BIG_ENDIAN
#define __BYTE_ORDER __BIG_ENDIAN
#endif
/* XXX: Solaris. There should be a better constant on which to check the byte order */
#elif defined(sun) || defined (__sun)
#if defined(_BIT_FIELDS_LTOH)
#define __BYTE_ORDER __LITTLE_ENDIAN
#else
#define __BYTE_ORDER __IG_ENDIAN
#endif
#endif
#endif
/* BSD definition */
/*
* TCP header.
* Per RFC 793, September, 1981.
*/
struct tcp_hdr {
uint16_t th_sport; /* source port */
uint16_t th_dport; /* destination port */
tcp_seq th_seq; /* sequence number */
tcp_seq th_ack; /* acknowledgement number */
#if __BYTE_ORDER == __LITTLE_ENDIAN
uint32_t th_x2:4, /* (unused) */
th_off:4; /* data offset */
#endif
# if __BYTE_ORDER == __BIG_ENDIAN
uint32_t th_off:4, /* data offset */
th_x2:4; /* (unused) */
#endif
uint8_t th_flags;
#define TH_FIN 0x01
#define TH_SYN 0x02
#define TH_RST 0x04
#define TH_PUSH 0x08
#define TH_ACK 0x10
#define TH_URG 0x20
#define TH_ECE 0x40
#define TH_CWR 0x80
uint16_t th_win; /* window */
uint16_t th_sum; /* checksum */
uint16_t th_urp; /* urgent pointer */
};
/*
0 7 8 15 16 23 24 31
+--------+--------+--------+--------+
| Source | Destination |
| Port | Port |
+--------+--------+--------+--------+
| | |
| Length | Checksum |
+--------+--------+--------+--------+
|
| data octets ...
+---------------- ...
User Datagram Header Format
*/
struct udp_hdr{
uint16_t uh_sport; /* source port */
uint16_t uh_dport; /* destination port */
uint16_t uh_ulen; /* udp length */
uint16_t uh_sum; /* udp checksum */
} __attribute__ ((__packed__));
/* Definition of the Authentication Header
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Payload Len | RESERVED |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Security Parameters Index (SPI) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence Number Field |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ Integrity Check Value-ICV (variable) |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct ah_hdr{
uint8_t ah_nxt; /* Next Header */
uint8_t ah_len; /* Payload length */
uint16_t ah_rsvd; /* Reserved */
uint32_t ah_spi; /* Reserved */
uint32_t ah_seq; /* Reserved */
uint32_t ah_icv; /* Integrity Check Value - ICV */
} __attribute__ ((__packed__));
/* Definition of the Encapsulating Security Payload
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ ----
| Security Parameters Index (SPI) | ^Int.
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |Cov-
| Sequence Number | |ered
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | ----
| Payload Data* (variable) | | ^
~ ~ | |
| | |Conf.
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |Cov-
| | Padding (0-255 bytes) | |ered*
+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| | Pad Length | Next Header | v v
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ ------
| Integrity Check Value-ICV (variable) |
~ ~
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct esp_hdr{
uint32_t esp_spi; /* Reserved */
uint32_t esp_seq; /* Reserved */
uint32_t ah_payload; /* Integrity Check Value - ICV */
} __attribute__ ((__packed__));
#define ARP_REQUEST 1
#define ARP_REPLY 2
#define RARP_REQUEST 3
#define RARP_REPLY 4
struct arp_hdr{
struct ether_header ether;
uint16_t hard_type; /* packet type ID field */
uint16_t prot_type; /* packet type ID field */
uint8_t hard_size;
uint8_t prot_size;
uint8_t op;
struct ether_addr src_ether;
struct in_addr src_ip;
struct ether_addr tgt_ether;
struct in_addr tgt_ip;
} __attribute__ ((__packed__));
/* For obtaining an IPv6 target */
struct target_ipv6{
struct in6_addr ip6; /* IPv6 address */
char name [NI_MAXHOST]; /* Name */
char canonname [NI_MAXHOST]; /* Canonic name */
int res; /* Error code */
unsigned int flags; /* Value-result: Whether the canonic name is required/obtained */
};
struct prefix_entry{
struct in6_addr ip6;
unsigned char len;
};
struct prefix_list{
struct prefix_entry **prefix;
unsigned int nprefix;
unsigned int maxprefix;
};
struct prefix4_entry{
struct in_addr ip;
unsigned char len;
};
struct host_entry{
struct in6_addr ip6;
struct ether_addr ether;
unsigned char flag;
struct host_entry *next;
};
struct host_list{
struct host_entry **host;
unsigned int nhosts;
unsigned int maxhosts;
};
struct address_list{
struct in6_addr *addr;
unsigned int naddr;
unsigned int maxaddr;
};
#define MAX_IFACES 25
struct iface_entry{
int ifindex;
char iface[IFACE_LENGTH];
struct ether_addr ether;
unsigned char ether_f;
struct prefix_list ip6_global;
struct prefix_list ip6_local;
int flags;
};
struct iface_list{
struct iface_entry *ifaces;
unsigned int nifaces;
unsigned int maxifaces;
};
/* Constants employed by decode_ipv6_address() */
#define IPV6_UNSPEC 1
#define IPV6_MULTICAST 2
#define IPV6_UNICAST 4
#define UCAST_V4MAPPED 1
#define UCAST_V4COMPAT 2
#define UCAST_LINKLOCAL 4
#define UCAST_SITELOCAL 8
#define UCAST_UNIQUELOCAL 16
#define UCAST_6TO4 32
#define UCAST_TEREDO 64
#define UCAST_GLOBAL 128
#define UCAST_LOOPBACK 256
#define MCAST_PERMANENT 512
#define MCAST_NONPERMANENT 1024
#define MCAST_INVALID 2048
#define MCAST_UNICASTBASED 4096
#define MCAST_EMBEDRP 8192
#define MCAST_UNKNOWN 16384
#define SCOPE_RESERVED 1
#define SCOPE_INTERFACE 2
#define SCOPE_LINK 4
#define SCOPE_ADMIN 8
#define SCOPE_SITE 16
#define SCOPE_ORGANIZATION 32
#define SCOPE_GLOBAL 64
#define SCOPE_UNASSIGNED 128
#define SCOPE_UNSPECIFIED 256
#define IID_MACDERIVED 1
#define IID_ISATAP 2
#define IID_EMBEDDEDIPV4 4
#define IID_EMBEDDEDIPV4_32 8192
#define IID_EMBEDDEDIPV4_64 64
#define IID_EMBEDDEDPORT 8
#define IID_EMBEDDEDPORTREV 16
#define IID_LOWBYTE 32
#define IID_PATTERN_BYTES 128
#define IID_RANDOM 256
#define IID_TEREDO_RFC4380 512
#define IID_TEREDO_RFC5991 1024
#define IID_TEREDO_UNKNOWN 2048
#define IID_UNSPECIFIED 4096
/* This struture is employed by decode_ipv6_address */
struct decode6{
struct in6_addr ip6;
unsigned int type;
unsigned int subtype;
unsigned int scope;
unsigned int iidtype;
unsigned int iidsubtype;
};
#ifndef IN6_IS_ADDR_UNIQUELOCAL
#define IN6_IS_ADDR_UNIQUELOCAL(a) \
((((uint32_t *) (a))[0] & htonl (0xfe000000)) \
== htonl (0xfc000000))
#endif
#ifndef IN6_IS_ADDR_6TO4
#define IN6_IS_ADDR_6TO4(a) \
((((uint32_t *) (a))[0] & htonl (0xffff0000)) \
== htonl (0x20020000))
#endif
#ifndef IN6_IS_ADDR_TEREDO
#define IN6_IS_ADDR_TEREDO(a) \
(((uint32_t *) (a))[0] == htonl (0x20020000))
#endif
#ifndef IN6_IS_ADDR_TEREDO_LEGACY
#define IN6_IS_ADDR_TEREDO_LEGACY(a) \
(((uint32_t *) (a))[0] == htonl (0x3ffe831f))
#endif
#if defined (__FreeBSD__) || defined(__NetBSD__) || defined (__OpenBSD__) || defined(__APPLE__)
#ifndef s6_addr16
#define s6_addr16 __u6_addr.__u6_addr16
#endif
#ifndef s6_addr
#define s6_addr __u6_addr.__u6_addr8
#endif
#ifndef s6_addr8
#define s6_addr8 __u6_addr.__u6_addr8
#endif
#ifndef s6_addr32
#define s6_addr32 __u6_addr.__u6_addr32
#endif
#elif defined __linux__ || ( !defined(__FreeBSD__) && defined(__FreeBSD_kernel__))
#ifndef s6_addr16
#define s6_addr16 __in6_u.__u6_addr16
#endif
#ifndef s6_addr32
#define s6_addr32 __in6_u.__u6_addr32
#endif
#elif defined(__sun) || defined(sun)
#ifndef s6_addr8
#define s6_addr8 _S6_un._S6_u8
#endif
#ifndef s6_addr32
#define s6_addr32 _S6_un._S6_u32
#endif
#endif
/* This causes Linux to use the BSD definition of the TCP and UDP header fields */
#ifndef __FAVOR_BSD
#define __FAVOR_BSD
#endif
/* Names (DNS, NI) related constants and definitions */
#define MAX_DOMAIN_LEN 512
#define MAX_DNS_LABELS 50
#define MAX_DNS_CLABELS 5
/* ICMPv6 Types/Codes not defined in some OSes */
#ifndef ICMP6_DST_UNREACH_FAILEDPOLICY
#define ICMP6_DST_UNREACH_FAILEDPOLICY 5
#endif
#ifndef ICMP6_DST_UNREACH_REJECTROUTE
#define ICMP6_DST_UNREACH_REJECTROUTE 6
#endif
#if !(defined (__FreeBSD__) || defined(__NetBSD__) || defined (__OpenBSD__) || defined(__APPLE__))
/* Definitions for Linux */
#ifndef _NETINET_ICMP6_H
#include <netinet/icmp6.h>
#endif
#define ICMP6_NI_QUERY 139 /* node information request */
#define ICMP6_NI_REPLY 140 /* node information reply */
/*
* icmp6 namelookup
*/
struct icmp6_namelookup {
struct icmp6_hdr icmp6_nl_hdr;
uint8_t icmp6_nl_nonce[8];
int32_t icmp6_nl_ttl;
#if 0
uint8_t icmp6_nl_len;
uint8_t icmp6_nl_name[3];
#endif
/* could be followed by options */
} __attribute__ ((__packed__));
/*
* icmp6 node information
*/
struct icmp6_nodeinfo {
struct icmp6_hdr icmp6_ni_hdr;
uint8_t icmp6_ni_nonce[8];
/* could be followed by reply data */
} __attribute__ ((__packed__));
#define ni_type icmp6_ni_hdr.icmp6_type
#define ni_code icmp6_ni_hdr.icmp6_code
#define ni_cksum icmp6_ni_hdr.icmp6_cksum
#define ni_qtype icmp6_ni_hdr.icmp6_data16[0]
#define ni_flags icmp6_ni_hdr.icmp6_data16[1]
#define NI_QTYPE_NOOP 0 /* NOOP */
#define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */
#define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */
#define NI_QTYPE_DNSNAME 2 /* DNS Name */
#define NI_QTYPE_NODEADDR 3 /* Node Addresses */
#define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */
#if __BYTE_ORDER == __BIG_ENDIAN
#define NI_SUPTYPE_FLAG_COMPRESS 0x1
#define NI_FQDN_FLAG_VALIDTTL 0x1
#elif __BYTE_ORDER == __LITTLE_ENDIAN
#define NI_SUPTYPE_FLAG_COMPRESS 0x0100
#define NI_FQDN_FLAG_VALIDTTL 0x0100
#endif
#if __BYTE_ORDER == __BIG_ENDIAN
#define NI_NODEADDR_FLAG_TRUNCATE 0x1
#define NI_NODEADDR_FLAG_ALL 0x2
#define NI_NODEADDR_FLAG_COMPAT 0x4
#define NI_NODEADDR_FLAG_LINKLOCAL 0x8
#define NI_NODEADDR_FLAG_SITELOCAL 0x10
#define NI_NODEADDR_FLAG_GLOBAL 0x20
#define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */
#elif __BYTE_ORDER == __LITTLE_ENDIAN
#define NI_NODEADDR_FLAG_TRUNCATE 0x0100
#define NI_NODEADDR_FLAG_ALL 0x0200
#define NI_NODEADDR_FLAG_COMPAT 0x0400
#define NI_NODEADDR_FLAG_LINKLOCAL 0x0800
#define NI_NODEADDR_FLAG_SITELOCAL 0x1000
#define NI_NODEADDR_FLAG_GLOBAL 0x2000
#define NI_NODEADDR_FLAG_ANYCAST 0x4000 /* just experimental. not in spec */
#endif
struct ni_reply_fqdn {
uint32_t ni_fqdn_ttl; /* TTL */
uint8_t ni_fqdn_namelen; /* length in octets of the FQDN */
uint8_t ni_fqdn_name[3]; /* XXX: alignment */
} __attribute__ ((__packed__));
#endif
struct ni_reply_ip6 {
uint32_t ni_ip6_ttl; /* TTL */
struct in6_addr ip6; /* IPv6 address */
} __attribute__ ((__packed__));
struct ni_reply_ip {
uint32_t ni_ip_ttl; /* TTL */
struct in_addr ip; /* IPv6 address */
} __attribute__ ((__packed__));
struct ni_reply_name {
uint32_t ni_name_ttl; /* TTL */
unsigned char ni_name_name; /* IPv6 address */
} __attribute__ ((__packed__));
/* ICMPv6 Types/Codes not defined in some OSes */
#ifndef ICMP6_DST_UNREACH_FAILEDPOLICY
#define ICMP6_DST_UNREACH_FAILEDPOLICY 5
#endif
#ifndef ICMP6_DST_UNREACH_REJECTROUTE
#define ICMP6_DST_UNREACH_REJECTROUTE 6
#endif
struct packet{
unsigned char *link;
unsigned char *ipv6;
unsigned char *upper;
unsigned long maxsize;
};
struct iface_data{
char iface[IFACE_LENGTH];
unsigned char iface_f;
pcap_t *pfd;
int ifindex;
unsigned char ifindex_f;
struct iface_list iflist;
unsigned int type;
unsigned int flags;
int fd;
unsigned int pending_write_f;
void *pending_write_data;
unsigned int pending_write_size;
fd_set *rset;
fd_set *wset;
fd_set *eset;
unsigned int write_errors;
struct ether_addr ether;
unsigned int ether_flag;
unsigned int linkhsize;
unsigned int max_packet_size;
struct in6_addr ip6_local;
unsigned int ip6_local_flag;
struct prefix_list ip6_global;
unsigned int ip6_global_flag;
struct in6_addr router_ip6;
struct ether_addr router_ether;
struct prefix_list prefix_ac;
struct prefix_list prefix_ol;
unsigned int local_retrans;
unsigned int local_timeout;
unsigned int mtu;
struct ether_addr hsrcaddr;
unsigned int hsrcaddr_f;
struct ether_addr hdstaddr;
unsigned int hdstaddr_f;
struct in6_addr srcaddr;
unsigned int src_f; /* XXX Set when a source address has been selected (even if automatically) */
unsigned int srcaddr_f;
unsigned char srcpreflen;
unsigned char srcprefix_f;
struct in6_addr dstaddr;
unsigned int dstaddr_f;
unsigned int verbose_f;
unsigned char listen_f;
unsigned char fragh_f;
/* XXX
The next four variables are kind of a duplicate of router_ip6 and router_ether above.
May remove them at some point
*/
struct in6_addr nhaddr;
unsigned char nhaddr_f;
struct ether_addr nhhaddr;
unsigned char nhhaddr_f;
int nhifindex;
unsigned char nhifindex_f;
char nhiface[IFACE_LENGTH];
unsigned char nh_f;
};
#ifdef __linux__
/* Consulting the routing table */
#define MAX_NLPAYLOAD 1024
#else
#define MAX_RTPAYLOAD 1024
#endif
#if defined(__linux__)
#define SLL_ADDRLEN 0
struct sll_linux{
uint16_t sll_pkttype; /* packet type */
uint16_t sll_hatype; /* link-layer address type */
uint16_t sll_halen; /* link-layer address length */
uint8_t sll_addr[SLL_ADDRLEN]; /* link-layer address */
uint16_t sll_protocol; /* protocol */
} __attribute__ ((__packed__));
#endif
struct next_hop{
struct in6_addr srcaddr;
unsigned char srcaddr_f;
struct in6_addr dstaddr;
unsigned char dstaddr_f;
struct in6_addr nhaddr;
unsigned char nhaddr_f;
struct ether_addr nhhaddr;
unsigned char nhhaddr_f;
int ifindex;
unsigned char ifindex_f;
};
/* Flags that specify what the load_dst_and_pcap() function should do */
#define LOAD_PCAP_ONLY 0x01
#define LOAD_SRC_NXT_HOP 0x02
/* Constants to signal special interface types */
#define IFACE_LOOPBACK 1
#define IFACE_TUNNEL 2
#ifndef SA_SIZE
#if defined(__APPLE__)
#define SA_SIZE(sa) \
( (!(sa) || ((struct sockaddr *)(sa))->sa_len == 0) ? \
sizeof(long) : \
((struct sockaddr *)(sa))->sa_len )
#elif defined (__FreeBSD__) || defined(__NetBSD__) || defined (__OpenBSD__)
#define SA_SIZE(sa) \
( (!(sa) || ((struct sockaddr *)(sa))->sa_len == 0) ? \
sizeof(long) : \
1 + ( (((struct sockaddr *)(sa))->sa_len - 1) | (sizeof(long) - 1) ) )
#else
#define SA_SIZE(sa) sizeof(struct sockaddr)
#endif
#endif
int address_contains_colons(char *);
int address_contains_ranges(char *);
void change_endianness(uint32_t *, unsigned int);
void debug_print_ifaces_data(struct iface_list *);
uint16_t dec_to_hex(uint16_t);
void decode_ipv6_address(struct decode6 *);
int dns_decode(unsigned char *, unsigned int, unsigned char *, char *, unsigned int, unsigned char **);
int dns_str2wire(char *, unsigned int, char *, unsigned int);
void dump_hex(void *, size_t);
struct ether_addr ether_multicast(const struct in6_addr *);
int ether_ntop(const struct ether_addr *, char *, size_t);
int ether_pton(const char *, struct ether_addr *, unsigned int);
void ether_to_ipv6_linklocal(struct ether_addr *etheraddr, struct in6_addr *ipv6addr);
void *find_iface_by_index(struct iface_list *, int);
void *find_iface_by_name(struct iface_list *, char *);
void *find_iface_by_addr(struct iface_list *, struct in6_addr *);
int find_ipv6_router(pcap_t *, struct ether_addr *, struct in6_addr *, struct ether_addr *, struct in6_addr *);
int find_ipv6_router_full(pcap_t *, struct iface_data *);
struct iface_entry *find_matching_address(struct iface_data *, struct iface_list *, struct in6_addr *, struct in6_addr *);
void generate_slaac_address(struct in6_addr *, struct ether_addr *, struct in6_addr *);
int get_if_addrs(struct iface_data *);
int get_local_addrs(struct iface_data *);
int get_ipv6_address(struct in6_addr *, char *);
int get_ipv6_target(struct target_ipv6 *);
int inc_sdev(uint32_t *, unsigned int, uint32_t *, double *);
int init_iface_data(struct iface_data *);
int init_filters(struct filters *);
uint16_t in_chksum(void *, void *, size_t, uint8_t);
int insert_pad_opt(unsigned char *ptrhdr, const unsigned char *, unsigned int);
int ipv6_to_ether(pcap_t *, struct iface_data *, struct in6_addr *, struct ether_addr *);
unsigned int ip6_longest_match(struct in6_addr *, struct in6_addr *);
int is_iid_null(struct in6_addr *, uint8_t);
int is_ip6_in_address_list(struct prefix_list *, struct in6_addr *);
int is_ip6_in_iface_entry(struct iface_list *, int, struct in6_addr *);
int is_ip6_in_list(struct in6_addr *, struct host_list *);
int is_ip6_in_prefix_list(struct in6_addr *, struct prefix_list *);
int is_eq_in6_addr(struct in6_addr *, struct in6_addr *);
unsigned int is_service_port(uint16_t);
int is_time_elapsed(struct timeval *, struct timeval *, unsigned long);
int keyval(char *, unsigned int, char **, char **);
int load_dst_and_pcap(struct iface_data *, unsigned int);
unsigned int match_ether(struct ether_addr *, unsigned int, struct ether_addr *);
unsigned int match_ipv6(struct in6_addr *, uint8_t *, unsigned int, struct in6_addr *);
int match_ipv6_to_prefixes(struct in6_addr *, struct prefix_list *);
void print_filters(struct iface_data *, struct filters *);
void print_filter_result(struct iface_data *, const u_char *, unsigned char);
unsigned int print_ipv6_address(char *s, struct in6_addr *);
unsigned int print_ipv6_address_rev(struct in6_addr *);
int print_local_addrs(struct iface_data *);
void randomize_ether_addr(struct ether_addr *);
void randomize_ipv6_addr(struct in6_addr *, struct in6_addr *, uint8_t);
int read_ipv6_address(char *, unsigned int, struct in6_addr *);
int read_prefix(char *, unsigned int, char **);
void release_privileges(void);
void sanitize_ipv4_prefix(struct prefix4_entry *);
void sanitize_ipv6_prefix(struct in6_addr *, uint8_t);
int send_neighbor_advert(struct iface_data *, pcap_t *, const u_char *);
int send_neighbor_solicit(struct iface_data *, struct in6_addr *);
int sel_src_addr(struct iface_data *);
struct in6_addr * sel_src_addr_ra(struct iface_data *, struct in6_addr *);
int sel_next_hop(struct iface_data *);
int sel_next_hop_ra(struct iface_data *);
void sig_alarm(int);
struct in6_addr solicited_node(const struct in6_addr *);
int string_escapes(char *, unsigned int *, unsigned int);
size_t Strnlen(const char *, size_t);
struct timeval timeval_sub(struct timeval *, struct timeval *);
float time_diff_ms(struct timeval *, struct timeval *);
unsigned int zero_byte_iid(struct in6_addr *);
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