in.h File Reference

#include <sys/socket.h>

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Data Structures
struct	in_addr
struct	sockaddr_in
struct	ip_opts
struct	ip_mreq

Macros
#define	IPPROTO_IP   0 /* dummy for IP */
#define	IPPROTO_HOPOPTS   0 /* IP6 hop-by-hop options */
#define	IPPROTO_ICMP   1 /* control message protocol */
#define	IPPROTO_IGMP   2 /* group mgmt protocol */
#define	IPPROTO_GGP   3 /* gateway^2 (deprecated) */
#define	IPPROTO_IPV4   4 /* IP header */
#define	IPPROTO_IPIP   4 /* IP inside IP */
#define	IPPROTO_TCP   6 /* tcp */
#define	IPPROTO_EGP   8 /* exterior gateway protocol */
#define	IPPROTO_PUP   12 /* pup */
#define	IPPROTO_UDP   17 /* user datagram protocol */
#define	IPPROTO_IDP   22 /* xns idp */
#define	IPPROTO_TP   29 /* tp-4 w/ class negotiation */
#define	IPPROTO_IPV6   41 /* IP6 header */
#define	IPPROTO_ROUTING   43 /* IP6 routing header */
#define	IPPROTO_FRAGMENT   44 /* IP6 fragmentation header */
#define	IPPROTO_RSVP   46 /* resource reservation */
#define	IPPROTO_GRE   47 /* GRE encaps RFC 1701 */
#define	IPPROTO_ESP   50 /* encap. security payload */
#define	IPPROTO_AH   51 /* authentication header */
#define	IPPROTO_MOBILE   55 /* IP Mobility RFC 2004 */
#define	IPPROTO_IPV6_ICMP   58 /* IPv6 ICMP */
#define	IPPROTO_ICMPV6   58 /* ICMP6 */
#define	IPPROTO_NONE   59 /* IP6 no next header */
#define	IPPROTO_DSTOPTS   60 /* IP6 destination option */
#define	IPPROTO_EON   80 /* ISO cnlp */
#define	IPPROTO_ETHERIP   97 /* Ethernet-in-IP */
#define	IPPROTO_ENCAP   98 /* encapsulation header */
#define	IPPROTO_PIM   103 /* Protocol indep. multicast */
#define	IPPROTO_IPCOMP   108 /* IP Payload Comp. Protocol */
#define	IPPROTO_VRRP   112 /* VRRP RFC 2338 */
#define	IPPROTO_RAW   255 /* raw IP packet */
#define	IPPROTO_MAX   256
#define	IPPROTO_DONE   257
#define	CTL_IPPROTO_IPSEC   258
#define	IPPORT_RESERVED   1024
#define	IPPORT_ANONMIN   49152
#define	IPPORT_ANONMAX   65535
#define	IPPORT_RESERVEDMIN   600
#define	IPPORT_RESERVEDMAX   (IPPORT_RESERVED-1)
#define	__IPADDR(x)
#define	IN_CLASSA(i)
#define	IN_CLASSA_NET   __IPADDR(0xff000000)
#define	IN_CLASSA_NSHIFT   24
#define	IN_CLASSA_HOST   __IPADDR(0x00ffffff)
#define	IN_CLASSA_MAX   128
#define	IN_CLASSB(i)
#define	IN_CLASSB_NET   __IPADDR(0xffff0000)
#define	IN_CLASSB_NSHIFT   16
#define	IN_CLASSB_HOST   __IPADDR(0x0000ffff)
#define	IN_CLASSB_MAX   65536
#define	IN_CLASSC(i)
#define	IN_CLASSC_NET   __IPADDR(0xffffff00)
#define	IN_CLASSC_NSHIFT   8
#define	IN_CLASSC_HOST   __IPADDR(0x000000ff)
#define	IN_CLASSD(i)
#define	IN_CLASSD_NET   __IPADDR(0xf0000000)
#define	IN_CLASSD_NSHIFT   28
#define	IN_CLASSD_HOST   __IPADDR(0x0fffffff)
#define	IN_MULTICAST(i)
#define	IN_EXPERIMENTAL(i)
#define	IN_BADCLASS(i)
#define	IN_LOCAL_GROUP(i)
#define	INADDR_ANY   __IPADDR(0x00000000)
#define	INADDR_LOOPBACK   __IPADDR(0x7f000001)
#define	INADDR_BROADCAST   __IPADDR(0xffffffff) /* must be masked */
#define	INADDR_UNSPEC_GROUP   __IPADDR(0xe0000000) /* 224.0.0.0 */
#define	INADDR_ALLHOSTS_GROUP   __IPADDR(0xe0000001) /* 224.0.0.1 */
#define	INADDR_ALLRTRS_GROUP   __IPADDR(0xe0000002) /* 224.0.0.2 */
#define	INADDR_MAX_LOCAL_GROUP   __IPADDR(0xe00000ff) /* 224.0.0.255 */
#define	IN_LOOPBACKNET   127 /* official! */
#define	INET_ADDRSTRLEN   16
#define	IP_OPTIONS   1 /* buf/ip_opts; set/get IP options */
#define	IP_HDRINCL   2 /* int; header is included with data */
#define	IP_TOS   3 /* int; IP type of service and preced. */
#define	IP_TTL   4 /* int; IP time to live */
#define	IP_RECVOPTS   5 /* bool; receive all IP opts w/dgram */
#define	IP_RECVRETOPTS   6 /* bool; receive IP opts for response */
#define	IP_RECVDSTADDR   7 /* bool; receive IP dst addr w/dgram */
#define	IP_RETOPTS   8 /* ip_opts; set/get IP options */
#define	IP_MULTICAST_IF   9 /* in_addr; set/get IP multicast i/f */
#define	IP_MULTICAST_TTL   10 /* u_char; set/get IP multicast ttl */
#define	IP_MULTICAST_LOOP   11 /* u_char; set/get IP multicast loopback */
#define	IP_ADD_MEMBERSHIP   12 /* ip_mreq; add an IP group membership */
#define	IP_DROP_MEMBERSHIP   13 /* ip_mreq; drop an IP group membership */
#define	IP_PORTRANGE   19 /* int; range to use for ephemeral port */
#define	IP_RECVIF   20 /* bool; receive reception if w/dgram */
#define	IP_ERRORMTU   21 /* int; get MTU of last xmit = EMSGSIZE */
#define	IP_IPSEC_POLICY   22 /* struct; get/set security policy */
#define	IP_DEFAULT_MULTICAST_TTL   1 /* normally limit m'casts to 1 hop */
#define	IP_DEFAULT_MULTICAST_LOOP   1 /* normally hear sends if a member */
#define	IP_MAX_MEMBERSHIPS   20 /* per socket; must fit in one mbuf */
#define	IP_PORTRANGE_DEFAULT   0 /* default range */
#define	IP_PORTRANGE_HIGH   1 /* same as DEFAULT (FreeBSD compat) */
#define	IP_PORTRANGE_LOW   2 /* use privileged range */
#define	ntohs(x)
#define	ntohl(x)
#define	htons(x)
#define	htonl(x)

Typedefs
typedef uint32_t	in_addr_t
typedef uint16_t	in_port_t

Macro Definition Documentation

__IPADDR

#define __IPADDR

(

x

)

Value:

((uint32_t)(x))

CTL_IPPROTO_IPSEC

#define CTL_IPPROTO_IPSEC   258

htonl

#define htonl

(

x

)

Value:

__builtin_bswap32(x)

htons

#define htons

(

x

)

Value:

__builtin_bswap16(x)

IN_BADCLASS

#define IN_BADCLASS

(

i

)

Value:

                                 (((uint32_t)(i) & __IPADDR(0xf0000000)) == \
                                 __IPADDR(0xf0000000))

IN_CLASSA

#define IN_CLASSA

(

i

)

Value:

                                 (((uint32_t)(i) & __IPADDR(0x80000000)) == \
                                 __IPADDR(0x00000000))

IN_CLASSA_HOST

#define IN_CLASSA_HOST   __IPADDR(0x00ffffff)

IN_CLASSA_MAX

#define IN_CLASSA_MAX   128

IN_CLASSA_NET

#define IN_CLASSA_NET   __IPADDR(0xff000000)

IN_CLASSA_NSHIFT

#define IN_CLASSA_NSHIFT   24

IN_CLASSB

#define IN_CLASSB

(

i

)

Value:

                                 (((uint32_t)(i) & __IPADDR(0xc0000000)) == \
                                 __IPADDR(0x80000000))

IN_CLASSB_HOST

#define IN_CLASSB_HOST   __IPADDR(0x0000ffff)

IN_CLASSB_MAX

#define IN_CLASSB_MAX   65536

IN_CLASSB_NET

#define IN_CLASSB_NET   __IPADDR(0xffff0000)

IN_CLASSB_NSHIFT

#define IN_CLASSB_NSHIFT   16

IN_CLASSC

#define IN_CLASSC

(

i

)

Value:

                                 (((uint32_t)(i) & __IPADDR(0xe0000000)) == \
                                 __IPADDR(0xc0000000))

IN_CLASSC_HOST

#define IN_CLASSC_HOST   __IPADDR(0x000000ff)

IN_CLASSC_NET

#define IN_CLASSC_NET   __IPADDR(0xffffff00)

IN_CLASSC_NSHIFT

#define IN_CLASSC_NSHIFT   8

IN_CLASSD

#define IN_CLASSD

(

i

)

Value:

                                 (((uint32_t)(i) & __IPADDR(0xf0000000)) == \
                                 __IPADDR(0xe0000000))

IN_CLASSD_HOST

#define IN_CLASSD_HOST   __IPADDR(0x0fffffff)

IN_CLASSD_NET

#define IN_CLASSD_NET   __IPADDR(0xf0000000)

IN_CLASSD_NSHIFT

#define IN_CLASSD_NSHIFT   28

IN_EXPERIMENTAL

#define IN_EXPERIMENTAL

(

i

)

Value:

                                 (((uint32_t)(i) & __IPADDR(0xf0000000)) == \
                                 __IPADDR(0xf0000000))

IN_LOCAL_GROUP

#define IN_LOCAL_GROUP

(

i

)

Value:

                                 (((uint32_t)(i) & __IPADDR(0xffffff00)) == \
                                 __IPADDR(0xe0000000))

IN_LOOPBACKNET

#define IN_LOOPBACKNET   127 /* official! */

IN_MULTICAST

#define IN_MULTICAST

(

i

)

Value:

IN_CLASSD(i)

INADDR_ALLHOSTS_GROUP

#define INADDR_ALLHOSTS_GROUP   __IPADDR(0xe0000001) /* 224.0.0.1 */

INADDR_ALLRTRS_GROUP

#define INADDR_ALLRTRS_GROUP   __IPADDR(0xe0000002) /* 224.0.0.2 */

INADDR_ANY

#define INADDR_ANY   __IPADDR(0x00000000)

INADDR_BROADCAST

#define INADDR_BROADCAST   __IPADDR(0xffffffff) /* must be masked */

INADDR_LOOPBACK

#define INADDR_LOOPBACK   __IPADDR(0x7f000001)

INADDR_MAX_LOCAL_GROUP

#define INADDR_MAX_LOCAL_GROUP   __IPADDR(0xe00000ff) /* 224.0.0.255 */

INADDR_UNSPEC_GROUP

#define INADDR_UNSPEC_GROUP   __IPADDR(0xe0000000) /* 224.0.0.0 */

INET_ADDRSTRLEN

#define INET_ADDRSTRLEN   16

IP_ADD_MEMBERSHIP

#define IP_ADD_MEMBERSHIP   12 /* ip_mreq; add an IP group membership */

IP_DEFAULT_MULTICAST_LOOP

#define IP_DEFAULT_MULTICAST_LOOP   1 /* normally hear sends if a member */

IP_DEFAULT_MULTICAST_TTL

#define IP_DEFAULT_MULTICAST_TTL   1 /* normally limit m'casts to 1 hop */

IP_DROP_MEMBERSHIP

#define IP_DROP_MEMBERSHIP   13 /* ip_mreq; drop an IP group membership */

IP_ERRORMTU

#define IP_ERRORMTU   21 /* int; get MTU of last xmit = EMSGSIZE */

IP_HDRINCL

#define IP_HDRINCL   2 /* int; header is included with data */

IP_IPSEC_POLICY

#define IP_IPSEC_POLICY   22 /* struct; get/set security policy */

IP_MAX_MEMBERSHIPS

#define IP_MAX_MEMBERSHIPS   20 /* per socket; must fit in one mbuf */

IP_MULTICAST_IF

#define IP_MULTICAST_IF   9 /* in_addr; set/get IP multicast i/f */

IP_MULTICAST_LOOP

#define IP_MULTICAST_LOOP   11 /* u_char; set/get IP multicast loopback */

IP_MULTICAST_TTL

#define IP_MULTICAST_TTL   10 /* u_char; set/get IP multicast ttl */

IP_OPTIONS

#define IP_OPTIONS   1 /* buf/ip_opts; set/get IP options */

IP_PORTRANGE

#define IP_PORTRANGE   19 /* int; range to use for ephemeral port */

IP_PORTRANGE_DEFAULT

#define IP_PORTRANGE_DEFAULT   0 /* default range */

IP_PORTRANGE_HIGH

#define IP_PORTRANGE_HIGH   1 /* same as DEFAULT (FreeBSD compat) */

IP_PORTRANGE_LOW

#define IP_PORTRANGE_LOW   2 /* use privileged range */

IP_RECVDSTADDR

#define IP_RECVDSTADDR   7 /* bool; receive IP dst addr w/dgram */

IP_RECVIF

#define IP_RECVIF   20 /* bool; receive reception if w/dgram */

IP_RECVOPTS

#define IP_RECVOPTS   5 /* bool; receive all IP opts w/dgram */

IP_RECVRETOPTS

#define IP_RECVRETOPTS   6 /* bool; receive IP opts for response */

IP_RETOPTS

#define IP_RETOPTS   8 /* ip_opts; set/get IP options */

IP_TOS

#define IP_TOS   3 /* int; IP type of service and preced. */

IP_TTL

#define IP_TTL   4 /* int; IP time to live */

IPPORT_ANONMAX

#define IPPORT_ANONMAX   65535

IPPORT_ANONMIN

#define IPPORT_ANONMIN   49152

IPPORT_RESERVED

#define IPPORT_RESERVED   1024

IPPORT_RESERVEDMAX

#define IPPORT_RESERVEDMAX   (IPPORT_RESERVED-1)

IPPORT_RESERVEDMIN

#define IPPORT_RESERVEDMIN   600

IPPROTO_AH

#define IPPROTO_AH   51 /* authentication header */

IPPROTO_DONE

#define IPPROTO_DONE   257

IPPROTO_DSTOPTS

#define IPPROTO_DSTOPTS   60 /* IP6 destination option */

IPPROTO_EGP

#define IPPROTO_EGP   8 /* exterior gateway protocol */

IPPROTO_ENCAP

#define IPPROTO_ENCAP   98 /* encapsulation header */

IPPROTO_EON

#define IPPROTO_EON   80 /* ISO cnlp */

IPPROTO_ESP

#define IPPROTO_ESP   50 /* encap. security payload */

IPPROTO_ETHERIP

#define IPPROTO_ETHERIP   97 /* Ethernet-in-IP */

IPPROTO_FRAGMENT

#define IPPROTO_FRAGMENT   44 /* IP6 fragmentation header */

IPPROTO_GGP

#define IPPROTO_GGP   3 /* gateway^2 (deprecated) */

IPPROTO_GRE

#define IPPROTO_GRE   47 /* GRE encaps RFC 1701 */

IPPROTO_HOPOPTS

#define IPPROTO_HOPOPTS   0 /* IP6 hop-by-hop options */

IPPROTO_ICMP

#define IPPROTO_ICMP   1 /* control message protocol */

IPPROTO_ICMPV6

#define IPPROTO_ICMPV6   58 /* ICMP6 */

IPPROTO_IDP

#define IPPROTO_IDP   22 /* xns idp */

IPPROTO_IGMP

#define IPPROTO_IGMP   2 /* group mgmt protocol */

IPPROTO_IP

#define IPPROTO_IP   0 /* dummy for IP */

IPPROTO_IPCOMP

#define IPPROTO_IPCOMP   108 /* IP Payload Comp. Protocol */

IPPROTO_IPIP

#define IPPROTO_IPIP   4 /* IP inside IP */

IPPROTO_IPV4

#define IPPROTO_IPV4   4 /* IP header */

IPPROTO_IPV6

#define IPPROTO_IPV6   41 /* IP6 header */

IPPROTO_IPV6_ICMP

#define IPPROTO_IPV6_ICMP   58 /* IPv6 ICMP */

IPPROTO_MAX

#define IPPROTO_MAX   256

IPPROTO_MOBILE

#define IPPROTO_MOBILE   55 /* IP Mobility RFC 2004 */

IPPROTO_NONE

#define IPPROTO_NONE   59 /* IP6 no next header */

IPPROTO_PIM

#define IPPROTO_PIM   103 /* Protocol indep. multicast */

IPPROTO_PUP

#define IPPROTO_PUP   12 /* pup */

IPPROTO_RAW

#define IPPROTO_RAW   255 /* raw IP packet */

IPPROTO_ROUTING

#define IPPROTO_ROUTING   43 /* IP6 routing header */

IPPROTO_RSVP

#define IPPROTO_RSVP   46 /* resource reservation */

IPPROTO_TCP

#define IPPROTO_TCP   6 /* tcp */

IPPROTO_TP

#define IPPROTO_TP   29 /* tp-4 w/ class negotiation */

IPPROTO_UDP

#define IPPROTO_UDP   17 /* user datagram protocol */

IPPROTO_VRRP

#define IPPROTO_VRRP   112 /* VRRP RFC 2338 */

ntohl

#define ntohl

(

x

)

Value:

__builtin_bswap32(x)

ntohs

#define ntohs

(

x

)

Value:

__builtin_bswap16(x)

Typedef Documentation

in_addr_t

typedef uint32_t in_addr_t

in_port_t

typedef uint16_t in_port_t