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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106/* SPDX-License-Identifier: GPL-2.0-or-later *//* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket * interface as the means of communication with the user level. * * Definitions of the Internet Protocol. * * Version: @(#)in.h 1.0.1 04/21/93 * * Authors: Original taken from the GNU Project <netinet/in.h> file. * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> */#ifndef _LINUX_IN_H#define _LINUX_IN_H
#include <linux/errno.h>#include <uapi/linux/in.h>
static inline int proto_ports_offset(int proto){ switch (proto) { case IPPROTO_TCP: case IPPROTO_UDP: case IPPROTO_DCCP: case IPPROTO_ESP: /* SPI */ case IPPROTO_SCTP: case IPPROTO_UDPLITE: return 0; case IPPROTO_AH: /* SPI */ return 4; default: return -EINVAL; }}
static inline bool ipv4_is_loopback(__be32 addr){ return (addr & htonl(0xff000000)) == htonl(0x7f000000);}
static inline bool ipv4_is_multicast(__be32 addr){ return (addr & htonl(0xf0000000)) == htonl(0xe0000000);}
static inline bool ipv4_is_local_multicast(__be32 addr){ return (addr & htonl(0xffffff00)) == htonl(0xe0000000);}
static inline bool ipv4_is_lbcast(__be32 addr){ /* limited broadcast */ return addr == htonl(INADDR_BROADCAST);}
static inline bool ipv4_is_all_snoopers(__be32 addr){ return addr == htonl(INADDR_ALLSNOOPERS_GROUP);}
static inline bool ipv4_is_zeronet(__be32 addr){ return (addr == 0);}
/* Special-Use IPv4 Addresses (RFC3330) */
static inline bool ipv4_is_private_10(__be32 addr){ return (addr & htonl(0xff000000)) == htonl(0x0a000000);}
static inline bool ipv4_is_private_172(__be32 addr){ return (addr & htonl(0xfff00000)) == htonl(0xac100000);}
static inline bool ipv4_is_private_192(__be32 addr){ return (addr & htonl(0xffff0000)) == htonl(0xc0a80000);}
static inline bool ipv4_is_linklocal_169(__be32 addr){ return (addr & htonl(0xffff0000)) == htonl(0xa9fe0000);}
static inline bool ipv4_is_anycast_6to4(__be32 addr){ return (addr & htonl(0xffffff00)) == htonl(0xc0586300);}
static inline bool ipv4_is_test_192(__be32 addr){ return (addr & htonl(0xffffff00)) == htonl(0xc0000200);}
static inline bool ipv4_is_test_198(__be32 addr){ return (addr & htonl(0xfffe0000)) == htonl(0xc6120000);}#endif /* _LINUX_IN_H */