in.h

Go to the documentation of this file.

/*
** in.h for  in /home/anoman/work/lse/lseos/lseos-net/libinet
** 
** Copyright (c)2004 Arthur Kopatsy
** Login   <kopats_a@epita.fr>
** 
** Started on  Wed Nov  3 16:33:14 2004 Arthur Kopatsy
** Last update Wed Nov  3 16:33:15 2004 Arthur Kopatsy
*/

#ifndef INET_IN_H_
#define INET_IN_H_

/*
 * Protocols
 */
#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_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

/* Standard well-known ports.  */
enum {
  IPPORT_ECHO = 7,              /* Echo service.  */
  IPPORT_DISCARD = 9,           /* Discard transmissions service.  */
  IPPORT_SYSTAT = 11,           /* System status service.  */
  IPPORT_DAYTIME = 13,  /* Time of day service.  */
  IPPORT_NETSTAT = 15,  /* Network status service.  */
  IPPORT_FTP = 21,              /* File Transfer Protocol.  */
  IPPORT_TELNET = 23,           /* Telnet protocol.  */
  IPPORT_SMTP = 25,             /* Simple Mail Transfer Protocol.  */
  IPPORT_TIMESERVER = 37,       /* Timeserver service.  */
  IPPORT_NAMESERVER = 42,       /* Domain Name Service.  */
  IPPORT_WHOIS = 43,            /* Internet Whois service.  */
  IPPORT_MTP = 57,
  
  IPPORT_TFTP = 69,             /* Trivial File Transfer Protocol.  */
  IPPORT_RJE = 77,
  IPPORT_FINGER = 79,           /* Finger service.  */
  IPPORT_TTYLINK = 87,
  IPPORT_SUPDUP = 95,           /* SUPDUP protocol.  */
  
  
  IPPORT_EXECSERVER = 512,      /* execd service.  */
  IPPORT_LOGINSERVER = 513,     /* rlogind service.  */
  IPPORT_CMDSERVER = 514,
  IPPORT_EFSSERVER = 520,
  
  /* UDP ports.  */
  IPPORT_BIFFUDP = 512,
  IPPORT_WHOSERVER = 513,
  IPPORT_ROUTESERVER = 520,
  
  /* Ports less than this value are reserved for privileged processes.  */
  IPPORT_RESERVED = 1024,
  
  /* Ports greater this value are reserved for (non-privileged) servers.  */
  IPPORT_USERRESERVED = 5000
};

/* 
** sockaddr_in
*/

#define INET_ADDRSTRLEN         16

#define IP_ADDR_SIZE            4

/* Internet address.  */
struct in_addr {
  in_addr_t     s_addr;
};

struct sockaddr_in {
  u_int8_t              sin_len;
  u_int8_t              sin_family;
  u_int16_t             sin_port;
  struct in_addr        sin_addr;
  u_int8_t              sin_zero[8];
};

/* Definitions of the bits in an Internet address integer.

   On subnets, host and network parts are found according to
   the subnet mask, not these masks.  */

#define IN_CLASSA(a)            ((((in_addr_t)(a)) & 0x80000000) == 0)
#define IN_CLASSA_NET           0xff000000
#define IN_CLASSA_NSHIFT        24
#define IN_CLASSA_HOST          (0xffffffff & ~IN_CLASSA_NET)
#define IN_CLASSA_MAX           128

#define IN_CLASSB(a)            ((((in_addr_t)(a)) & 0xc0000000) == 0x80000000)
#define IN_CLASSB_NET           0xffff0000
#define IN_CLASSB_NSHIFT        16
#define IN_CLASSB_HOST          (0xffffffff & ~IN_CLASSB_NET)
#define IN_CLASSB_MAX           65536

#define IN_CLASSC(a)            ((((in_addr_t)(a)) & 0xe0000000) == 0xc0000000)
#define IN_CLASSC_NET           0xffffff00
#define IN_CLASSC_NSHIFT        8
#define IN_CLASSC_HOST          (0xffffffff & ~IN_CLASSC_NET)

#define IN_CLASSD(a)            ((((in_addr_t)(a)) & 0xf0000000) == 0xe0000000)
#define IN_MULTICAST(a)         IN_CLASSD(a)

#define IN_EXPERIMENTAL(a)      ((((in_addr_t)(a)) & 0xe0000000) == 0xe0000000)
#define IN_BADCLASS(a)          ((((in_addr_t)(a)) & 0xf0000000) == 0xf0000000)

/* Address to accept any incoming messages.  */
#define INADDR_ANY              ((in_addr_t) 0x00000000)
/* Address to send to all hosts.  */
#define INADDR_BROADCAST        ((in_addr_t) 0xffffffff)
/* Address indicating an error return.  */
#define INADDR_NONE             ((in_addr_t) 0xffffffff)

/* Network number for local host loopback.  */
#define IN_LOOPBACKNET          127
/* Address to loopback in software to local host.  */
#ifndef INADDR_LOOPBACK
# define INADDR_LOOPBACK        ((in_addr_t) 0x7f000001) /* Inet 127.0.0.1.  */
#endif

/* Defines for Multicast INADDR.  */
#define INADDR_UNSPEC_GROUP     ((in_addr_t) 0xe0000000) /* 224.0.0.0 */
#define INADDR_ALLHOSTS_GROUP   ((in_addr_t) 0xe0000001) /* 224.0.0.1 */
#define INADDR_ALLRTRS_GROUP    ((in_addr_t) 0xe0000002) /* 224.0.0.2 */
#define INADDR_MAX_LOCAL_GROUP  ((in_addr_t) 0xe00000ff) /* 224.0.0.255 */

#endif

---