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#ifndef _IPXE_IN_H
#define _IPXE_IN_H
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stdint.h>
#include <byteswap.h>
#include <ipxe/socket.h>
/* Protocol numbers */
#define IP_ICMP 1
#define IP_TCP 6
#define IP_UDP 17
#define IP_ICMP6 58
/* IP address constants */
#define INADDR_NONE htonl ( 0xffffffff )
#define INADDR_BROADCAST htonl ( 0xffffffff )
#define INADDR_NET_CLASSA htonl ( 0xff000000 )
#define INADDR_NET_CLASSB htonl ( 0xffff0000 )
#define INADDR_NET_CLASSC htonl ( 0xffffff00 )
#define IN_IS_CLASSA( addr ) \
( ( (addr) & htonl ( 0x80000000 ) ) == htonl ( 0x00000000 ) )
#define IN_IS_CLASSB( addr ) \
( ( (addr) & htonl ( 0xc0000000 ) ) == htonl ( 0x80000000 ) )
#define IN_IS_CLASSC( addr ) \
( ( (addr) & htonl ( 0xe0000000 ) ) == htonl ( 0xc0000000 ) )
#define IN_IS_MULTICAST( addr ) \
( ( (addr) & htonl ( 0xf0000000 ) ) == htonl ( 0xe0000000 ) )
/**
* IP address structure
*/
struct in_addr {
uint32_t s_addr;
};
typedef struct in_addr in_addr;
/**
* IP6 address structure
*/
struct in6_addr {
union {
uint8_t u6_addr8[16];
uint16_t u6_addr16[8];
uint32_t u6_addr32[4];
} in6_u;
#define s6_addr in6_u.u6_addr8
#define s6_addr16 in6_u.u6_addr16
#define s6_addr32 in6_u.u6_addr32
};
#define IN6_IS_ADDR_UNSPECIFIED( addr ) \
( ( ( ( ( const uint32_t * ) (addr) )[0] ) | \
( ( ( const uint32_t * ) (addr) )[1] ) | \
( ( ( const uint32_t * ) (addr) )[2] ) | \
( ( ( const uint32_t * ) (addr) )[3] ) ) == 0 )
#define IN6_IS_ADDR_MULTICAST( addr ) \
( *( ( const uint8_t * ) (addr) ) == 0xff )
#define IN6_IS_ADDR_LINKLOCAL( addr ) \
( ( *( ( const uint16_t * ) (addr) ) & htons ( 0xffc0 ) ) == \
htons ( 0xfe80 ) )
#define IN6_IS_ADDR_SITELOCAL( addr ) \
( ( *( ( const uint16_t * ) (addr) ) & htons ( 0xffc0 ) ) == \
htons ( 0xfec0 ) )
#define IN6_IS_ADDR_ULA( addr ) \
( ( *( ( const uint8_t * ) (addr) ) & 0xfe ) == 0xfc )
/**
* IPv4 socket address
*/
struct sockaddr_in {
/** Socket address family (part of struct @c sockaddr)
*
* Always set to @c AF_INET for IPv4 addresses
*/
sa_family_t sin_family;
/** Flags (part of struct @c sockaddr_tcpip) */
uint16_t sin_flags;
/** TCP/IP port (part of struct @c sockaddr_tcpip) */
uint16_t sin_port;
/** Scope ID (part of struct @c sockaddr_tcpip)
*
* For multicast addresses, this is the network device index.
*/
uint16_t sin_scope_id;
/** IPv4 address */
struct in_addr sin_addr;
/** Padding
*
* This ensures that a struct @c sockaddr_in is large enough
* to hold a socket address for any TCP/IP address family.
*/
char pad[ sizeof ( struct sockaddr ) -
( sizeof ( sa_family_t ) /* sin_family */ +
sizeof ( uint16_t ) /* sin_flags */ +
sizeof ( uint16_t ) /* sin_port */ +
sizeof ( uint16_t ) /* sin_scope_id */ +
sizeof ( struct in_addr ) /* sin_addr */ ) ];
} __attribute__ (( packed, may_alias ));
/**
* IPv6 socket address
*/
struct sockaddr_in6 {
/** Socket address family (part of struct @c sockaddr)
*
* Always set to @c AF_INET6 for IPv6 addresses
*/
sa_family_t sin6_family;
/** Flags (part of struct @c sockaddr_tcpip) */
uint16_t sin6_flags;
/** TCP/IP port (part of struct @c sockaddr_tcpip) */
uint16_t sin6_port;
/** Scope ID (part of struct @c sockaddr_tcpip)
*
* For link-local or multicast addresses, this is the network
* device index.
*/
uint16_t sin6_scope_id;
/** IPv6 address */
struct in6_addr sin6_addr;
/** Padding
*
* This ensures that a struct @c sockaddr_in6 is large
* enough to hold a socket address for any TCP/IP address
* family.
*/
char pad[ sizeof ( struct sockaddr ) -
( sizeof ( sa_family_t ) /* sin6_family */ +
sizeof ( uint16_t ) /* sin6_flags */ +
sizeof ( uint16_t ) /* sin6_port */ +
sizeof ( uint16_t ) /* sin6_scope_id */ +
sizeof ( struct in6_addr ) /* sin6_addr */ ) ];
} __attribute__ (( packed, may_alias ));
extern int inet_aton ( const char *cp, struct in_addr *inp );
extern char * inet_ntoa ( struct in_addr in );
extern int inet6_aton ( const char *string, struct in6_addr *in );
extern char * inet6_ntoa ( const struct in6_addr *in );
#endif /* _IPXE_IN_H */
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