133 lines
3.5 KiB
C
133 lines
3.5 KiB
C
#ifndef _IPXE_IN_H
|
|
#define _IPXE_IN_H
|
|
|
|
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
|
|
|
|
#include <stdint.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 0xffffffff
|
|
|
|
#define INADDR_BROADCAST 0xffffffff
|
|
|
|
#define IN_CLASSA(addr) ( ( (addr) & 0x80000000 ) == 0x00000000 )
|
|
#define IN_CLASSA_NET 0xff000000
|
|
#define IN_CLASSB(addr) ( ( (addr) & 0xc0000000 ) == 0x80000000 )
|
|
#define IN_CLASSB_NET 0xffff0000
|
|
#define IN_CLASSC(addr) ( ( (addr) & 0xe0000000 ) == 0xc0000000 )
|
|
#define IN_CLASSC_NET 0xffffff00
|
|
#define IN_MULTICAST(addr) ( ( (addr) & 0xf0000000 ) == 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 ) )
|
|
|
|
/**
|
|
* 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;
|
|
/** 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 ( 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
|
|
*
|
|
* For link-local 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 */
|