cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

in.h (2345B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 * INET		An implementation of the TCP/IP protocol suite for the LINUX
      4 *		operating system.  INET is implemented using the  BSD Socket
      5 *		interface as the means of communication with the user level.
      6 *
      7 *		Definitions of the Internet Protocol.
      8 *
      9 * Version:	@(#)in.h	1.0.1	04/21/93
     10 *
     11 * Authors:	Original taken from the GNU Project <netinet/in.h> file.
     12 *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
     13 */
     14#ifndef _LINUX_IN_H
     15#define _LINUX_IN_H
     16
     17
     18#include <linux/errno.h>
     19#include <uapi/linux/in.h>
     20
     21static inline int proto_ports_offset(int proto)
     22{
     23	switch (proto) {
     24	case IPPROTO_TCP:
     25	case IPPROTO_UDP:
     26	case IPPROTO_DCCP:
     27	case IPPROTO_ESP:	/* SPI */
     28	case IPPROTO_SCTP:
     29	case IPPROTO_UDPLITE:
     30		return 0;
     31	case IPPROTO_AH:	/* SPI */
     32		return 4;
     33	default:
     34		return -EINVAL;
     35	}
     36}
     37
     38static inline bool ipv4_is_loopback(__be32 addr)
     39{
     40	return (addr & htonl(0xff000000)) == htonl(0x7f000000);
     41}
     42
     43static inline bool ipv4_is_multicast(__be32 addr)
     44{
     45	return (addr & htonl(0xf0000000)) == htonl(0xe0000000);
     46}
     47
     48static inline bool ipv4_is_local_multicast(__be32 addr)
     49{
     50	return (addr & htonl(0xffffff00)) == htonl(0xe0000000);
     51}
     52
     53static inline bool ipv4_is_lbcast(__be32 addr)
     54{
     55	/* limited broadcast */
     56	return addr == htonl(INADDR_BROADCAST);
     57}
     58
     59static inline bool ipv4_is_all_snoopers(__be32 addr)
     60{
     61	return addr == htonl(INADDR_ALLSNOOPERS_GROUP);
     62}
     63
     64static inline bool ipv4_is_zeronet(__be32 addr)
     65{
     66	return (addr == 0);
     67}
     68
     69/* Special-Use IPv4 Addresses (RFC3330) */
     70
     71static inline bool ipv4_is_private_10(__be32 addr)
     72{
     73	return (addr & htonl(0xff000000)) == htonl(0x0a000000);
     74}
     75
     76static inline bool ipv4_is_private_172(__be32 addr)
     77{
     78	return (addr & htonl(0xfff00000)) == htonl(0xac100000);
     79}
     80
     81static inline bool ipv4_is_private_192(__be32 addr)
     82{
     83	return (addr & htonl(0xffff0000)) == htonl(0xc0a80000);
     84}
     85
     86static inline bool ipv4_is_linklocal_169(__be32 addr)
     87{
     88	return (addr & htonl(0xffff0000)) == htonl(0xa9fe0000);
     89}
     90
     91static inline bool ipv4_is_anycast_6to4(__be32 addr)
     92{
     93	return (addr & htonl(0xffffff00)) == htonl(0xc0586300);
     94}
     95
     96static inline bool ipv4_is_test_192(__be32 addr)
     97{
     98	return (addr & htonl(0xffffff00)) == htonl(0xc0000200);
     99}
    100
    101static inline bool ipv4_is_test_198(__be32 addr)
    102{
    103	return (addr & htonl(0xfffe0000)) == htonl(0xc6120000);
    104}
    105#endif	/* _LINUX_IN_H */