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121 lines
4.7 KiB
C
121 lines
4.7 KiB
C
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/** @file
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Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __EFI_IP4_OUTPUT_H__
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#define __EFI_IP4_OUTPUT_H__
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/**
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The default callback function for system generated packet.
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It will free the packet.
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@param Ip4Instance The IP4 child that issued the transmission. It most
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like is NULL.
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@param Packet The packet that transmitted.
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@param IoStatus The result of the transmission, succeeded or failed.
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@param LinkFlag Not used when transmission. check IP4_FRAME_CALLBACK
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for reference.
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@param Context The context provided by us
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**/
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VOID
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Ip4SysPacketSent (
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IP4_PROTOCOL *Ip4Instance,
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NET_BUF *Packet,
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EFI_STATUS IoStatus,
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UINT32 LinkFlag,
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VOID *Context
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);
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/**
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Transmit an IP4 packet. The packet comes either from the IP4
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child's consumer (IpInstance != NULL) or the IP4 driver itself
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(IpInstance == NULL). It will route the packet, fragment it,
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then transmit all the fragments through some interface.
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@param[in] IpSb The IP4 service instance to transmit the packet
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@param[in] IpInstance The IP4 child that issues the transmission. It is
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NULL if the packet is from the system.
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@param[in] Packet The user data to send, excluding the IP header.
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@param[in] Head The caller supplied header. The caller should set
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the following header fields: Tos, TotalLen, Id, tl,
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Fragment, Protocol, Src and Dst. All the fields are
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in host byte order. This function will fill in the
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Ver, HeadLen, Fragment, and checksum. The Fragment
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only need to include the DF flag. Ip4Output will
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compute the MF and offset for you.
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@param[in] Option The original option to append to the IP headers
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@param[in] OptLen The length of the option
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@param[in] GateWay The next hop address to transmit packet to.
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255.255.255.255 means broadcast.
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@param[in] Callback The callback function to issue when transmission
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completed.
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@param[in] Context The opaque context for the callback
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@retval EFI_NO_MAPPING There is no interface to the destination.
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@retval EFI_NOT_FOUND There is no route to the destination
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@retval EFI_SUCCESS The packet is successfully transmitted.
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@retval Others Failed to transmit the packet.
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**/
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EFI_STATUS
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Ip4Output (
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IN IP4_SERVICE *IpSb,
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IN IP4_PROTOCOL *IpInstance OPTIONAL,
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IN NET_BUF *Packet,
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IN IP4_HEAD *Head,
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IN UINT8 *Option,
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IN UINT32 OptLen,
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IN IP4_ADDR GateWay,
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IN IP4_FRAME_CALLBACK Callback,
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IN VOID *Context
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);
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/**
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Cancel the Packet and all its fragments.
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@param IpIf The interface from which the Packet is sent
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@param Packet The Packet to cancel
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@param IoStatus The status returns to the sender.
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**/
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VOID
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Ip4CancelPacket (
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IN IP4_INTERFACE *IpIf,
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IN NET_BUF *Packet,
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IN EFI_STATUS IoStatus
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);
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/**
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Prepend an IP4 head to the Packet. It will copy the options and
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build the IP4 header fields. Used for IP4 fragmentation.
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@param Packet The packet to prepend IP4 header to
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@param Head The caller supplied header. The caller should set
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the following header fields: Tos, TotalLen, Id,
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Fragment, Ttl, Protocol, Src and Dst. All the fields
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are in host byte order. This function will fill in
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the Ver, HeadLen, and checksum.
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@param Option The orginal IP4 option to copy from
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@param OptLen The length of the IP4 option
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@retval EFI_BAD_BUFFER_SIZE There is no enought room in the head space of
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Packet.
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@retval EFI_SUCCESS The IP4 header is successfully added to the packet.
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**/
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EFI_STATUS
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Ip4PrependHead (
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IN OUT NET_BUF *Packet,
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IN IP4_HEAD *Head,
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IN UINT8 *Option,
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IN UINT32 OptLen
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);
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extern UINT16 mIp4Id;
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#endif
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