mirror of https://github.com/acidanthera/audk.git
205 lines
6.4 KiB
C
205 lines
6.4 KiB
C
/** @file
|
|
Common definition for IP4.
|
|
|
|
Copyright (c) 2005 - 2014, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
#ifndef __EFI_IP4_COMMON_H__
|
|
#define __EFI_IP4_COMMON_H__
|
|
|
|
typedef struct _IP4_INTERFACE IP4_INTERFACE;
|
|
typedef struct _IP4_PROTOCOL IP4_PROTOCOL;
|
|
typedef struct _IP4_SERVICE IP4_SERVICE;
|
|
|
|
#define IP4_ETHER_PROTO 0x0800
|
|
|
|
//
|
|
// The packet is received as link level broadcast/multicast/promiscuous.
|
|
//
|
|
#define IP4_LINK_BROADCAST 0x00000001
|
|
#define IP4_LINK_MULTICAST 0x00000002
|
|
#define IP4_LINK_PROMISC 0x00000004
|
|
|
|
//
|
|
// IP4 address cast type classfication. Keep it true that any
|
|
// type bigger than or equal to LOCAL_BROADCAST is broadcast.
|
|
//
|
|
#define IP4_PROMISCUOUS 1
|
|
#define IP4_LOCAL_HOST 2
|
|
#define IP4_MULTICAST 3
|
|
#define IP4_LOCAL_BROADCAST 4 // Destination is 255.255.255.255
|
|
#define IP4_SUBNET_BROADCAST 5
|
|
#define IP4_NET_BROADCAST 6
|
|
|
|
//
|
|
// IP4 header flags
|
|
//
|
|
#define IP4_HEAD_DF_MASK 0x4000
|
|
#define IP4_HEAD_MF_MASK 0x2000
|
|
#define IP4_HEAD_OFFSET_MASK 0x1fff
|
|
|
|
#define IP4_ALLZERO_ADDRESS 0x00000000u
|
|
#define IP4_ALLONE_ADDRESS 0xFFFFFFFFu
|
|
#define IP4_ALLSYSTEM_ADDRESS 0xE0000001u
|
|
#define IP4_ALLROUTER_ADDRESS 0xE0000002u
|
|
|
|
///
|
|
/// Compose the fragment field to be used in the IP4 header.
|
|
///
|
|
#define IP4_HEAD_FRAGMENT_FIELD(Df, Mf, Offset) \
|
|
((UINT16)(((Df) ? 0x4000 : 0) | ((Mf) ? 0x2000 : 0) | (((Offset) >> 3) & 0x1fff)))
|
|
|
|
#define IP4_LAST_FRAGMENT(FragmentField) \
|
|
(((FragmentField) & IP4_HEAD_MF_MASK) == 0)
|
|
|
|
#define IP4_FIRST_FRAGMENT(FragmentField) \
|
|
((BOOLEAN)(((FragmentField) & IP4_HEAD_OFFSET_MASK) == 0))
|
|
|
|
#define IP4_DO_NOT_FRAGMENT(FragmentField) \
|
|
((BOOLEAN)(((FragmentField) & IP4_HEAD_DF_MASK) == IP4_HEAD_DF_MASK))
|
|
|
|
#define IP4_IS_BROADCAST(CastType) ((CastType) >= IP4_LOCAL_BROADCAST)
|
|
|
|
///
|
|
/// Conver the Microsecond to second. IP transmit/receive time is
|
|
/// in the unit of microsecond. IP ticks once per second.
|
|
///
|
|
#define IP4_US_TO_SEC(Us) (((Us) + 999999) / 1000000)
|
|
|
|
/**
|
|
Return the cast type (Unicast/Boradcast) specific to an
|
|
interface. All the addresses are host byte ordered.
|
|
|
|
@param[in] IpAddr The IP address to classify in host byte order
|
|
@param[in] IpIf The interface that IpAddr received from
|
|
|
|
@return The cast type of this IP address specific to the interface.
|
|
@retval IP4_LOCAL_HOST The IpAddr equals to the interface's address
|
|
@retval IP4_SUBNET_BROADCAST The IpAddr is a directed subnet boradcast to the
|
|
interface
|
|
@retval IP4_NET_BROADCAST The IpAddr is a network broadcast to the interface
|
|
@retval 0 Otherwise.
|
|
|
|
**/
|
|
INTN
|
|
Ip4GetNetCast (
|
|
IN IP4_ADDR IpAddr,
|
|
IN IP4_INTERFACE *IpIf
|
|
);
|
|
|
|
/**
|
|
Find the cast type of the packet related to the local host.
|
|
This isn't the same as link layer cast type. For example, DHCP
|
|
server may send local broadcast to the local unicast MAC.
|
|
|
|
@param[in] IpSb The IP4 service binding instance that received the
|
|
packet
|
|
@param[in] Dst The destination address in the packet (host byte
|
|
order)
|
|
@param[in] Src The source address in the packet (host byte order)
|
|
|
|
@return The cast type for the Dst, it will return on the first non-promiscuous
|
|
cast type to a configured interface. If the packet doesn't match any of
|
|
the interface, multicast address and local broadcast address are checked.
|
|
|
|
**/
|
|
INTN
|
|
Ip4GetHostCast (
|
|
IN IP4_SERVICE *IpSb,
|
|
IN IP4_ADDR Dst,
|
|
IN IP4_ADDR Src
|
|
);
|
|
|
|
/**
|
|
Find an interface whose configured IP address is Ip.
|
|
|
|
@param[in] IpSb The IP4 service binding instance
|
|
@param[in] Ip The Ip address (host byte order) to find
|
|
|
|
@return The IP4_INTERFACE point if found, otherwise NULL
|
|
|
|
**/
|
|
IP4_INTERFACE *
|
|
Ip4FindInterface (
|
|
IN IP4_SERVICE *IpSb,
|
|
IN IP4_ADDR Ip
|
|
);
|
|
|
|
/**
|
|
Find an interface that Ip is on that connected network.
|
|
|
|
@param[in] IpSb The IP4 service binding instance
|
|
@param[in] Ip The Ip address (host byte order) to find
|
|
|
|
@return The IP4_INTERFACE point if found, otherwise NULL
|
|
|
|
**/
|
|
IP4_INTERFACE *
|
|
Ip4FindNet (
|
|
IN IP4_SERVICE *IpSb,
|
|
IN IP4_ADDR Ip
|
|
);
|
|
|
|
/**
|
|
Find an interface of the service with the same Ip/Netmask pair.
|
|
|
|
@param[in] IpSb Ip4 service binding instance
|
|
@param[in] Ip The Ip adress to find (host byte order)
|
|
@param[in] Netmask The network to find (host byte order)
|
|
|
|
@return The IP4_INTERFACE point if found, otherwise NULL
|
|
|
|
**/
|
|
IP4_INTERFACE *
|
|
Ip4FindStationAddress (
|
|
IN IP4_SERVICE *IpSb,
|
|
IN IP4_ADDR Ip,
|
|
IN IP4_ADDR Netmask
|
|
);
|
|
|
|
/**
|
|
Get the MAC address for a multicast IP address. Call
|
|
Mnp's McastIpToMac to find the MAC address in stead of
|
|
hard code the NIC to be Ethernet.
|
|
|
|
@param[in] Mnp The Mnp instance to get the MAC address.
|
|
@param[in] Multicast The multicast IP address to translate.
|
|
@param[out] Mac The buffer to hold the translated address.
|
|
|
|
@retval EFI_SUCCESS if the multicast IP is successfully translated to a
|
|
multicast MAC address.
|
|
@retval other Otherwise some error.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
Ip4GetMulticastMac (
|
|
IN EFI_MANAGED_NETWORK_PROTOCOL *Mnp,
|
|
IN IP4_ADDR Multicast,
|
|
OUT EFI_MAC_ADDRESS *Mac
|
|
);
|
|
|
|
/**
|
|
Convert the multibyte field in IP header's byter order.
|
|
In spite of its name, it can also be used to convert from
|
|
host to network byte order.
|
|
|
|
@param[in] Head The IP head to convert
|
|
|
|
@return Point to the converted IP head
|
|
|
|
**/
|
|
IP4_HEAD *
|
|
Ip4NtohHead (
|
|
IN IP4_HEAD *Head
|
|
);
|
|
|
|
#endif
|