From f737cfb953905f42f3324e8e53ec324a15314210 Mon Sep 17 00:00:00 2001 From: jgong5 Date: Fri, 6 Feb 2009 05:07:34 +0000 Subject: code scrub for UefiPxeBcDxe. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7452 6f19259b-4bc3-4df7-8a09-765794883524 --- MdePkg/Include/Protocol/PxeBaseCode.h | 217 +++++++++++++++++++++++++- MdePkg/Include/Protocol/PxeBaseCodeCallBack.h | 10 ++ 2 files changed, 223 insertions(+), 4 deletions(-) (limited to 'MdePkg/Include') diff --git a/MdePkg/Include/Protocol/PxeBaseCode.h b/MdePkg/Include/Protocol/PxeBaseCode.h index 4085726f64..e893fa1606 100644 --- a/MdePkg/Include/Protocol/PxeBaseCode.h +++ b/MdePkg/Include/Protocol/PxeBaseCode.h @@ -281,6 +281,51 @@ typedef struct { /** Enables the use of the PXE Base Code Protocol functions. + + This function enables the use of the PXE Base Code Protocol functions. If the + Started field of the EFI_PXE_BASE_CODE_MODE structure is already TRUE, then + EFI_ALREADY_STARTED will be returned. If UseIpv6 is TRUE, then IPv6 formatted + addresses will be used in this session. If UseIpv6 is FALSE, then IPv4 formatted + addresses will be used in this session. If UseIpv6 is TRUE, and the Ipv6Supported + field of the EFI_PXE_BASE_CODE_MODE structure is FALSE, then EFI_UNSUPPORTED will + be returned. If there is not enough memory or other resources to start the PXE + Base Code Protocol, then EFI_OUT_OF_RESOURCES will be returned. Otherwise, the + PXE Base Code Protocol will be started, and all of the fields of the EFI_PXE_BASE_CODE_MODE + structure will be initialized as follows: + StartedSet to TRUE. + Ipv6SupportedUnchanged. + Ipv6AvailableUnchanged. + UsingIpv6Set to UseIpv6. + BisSupportedUnchanged. + BisDetectedUnchanged. + AutoArpSet to TRUE. + SendGUIDSet to FALSE. + TTLSet to DEFAULT_TTL. + ToSSet to DEFAULT_ToS. + DhcpCompletedSet to FALSE. + ProxyOfferReceivedSet to FALSE. + StationIpSet to an address of all zeros. + SubnetMaskSet to a subnet mask of all zeros. + DhcpDiscoverZero-filled. + DhcpAckZero-filled. + ProxyOfferZero-filled. + PxeDiscoverValidSet to FALSE. + PxeDiscoverZero-filled. + PxeReplyValidSet to FALSE. + PxeReplyZero-filled. + PxeBisReplyValidSet to FALSE. + PxeBisReplyZero-filled. + IpFilterSet the Filters field to 0 and the IpCnt field to 0. + ArpCacheEntriesSet to 0. + ArpCacheZero-filled. + RouteTableEntriesSet to 0. + RouteTableZero-filled. + IcmpErrorReceivedSet to FALSE. + IcmpErrorZero-filled. + TftpErroReceivedSet to FALSE. + TftpErrorZero-filled. + MakeCallbacksSet to TRUE if the PXE Base Code Callback Protocol is available. + Set to FALSE if the PXE Base Code Callback Protocol is not available. @param This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance. @param UseIpv6 Specifies the type of IP addresses that are to be used during the session @@ -307,7 +352,12 @@ EFI_STATUS /** Disables the use of the PXE Base Code Protocol functions. - + + This function stops all activity on the network device. All the resources allocated + in Start() are released, the Started field of the EFI_PXE_BASE_CODE_MODE structure is + set to FALSE and EFI_SUCCESS is returned. If the Started field of the EFI_PXE_BASE_CODE_MODE + structure is already FALSE, then EFI_NOT_STARTED will be returned. + @param This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance. @retval EFI_SUCCESS The PXE Base Code Protocol was stopped. @@ -326,6 +376,19 @@ EFI_STATUS /** Attempts to complete a DHCPv4 D.O.R.A. (discover / offer / request / acknowledge) or DHCPv6 S.A.R.R (solicit / advertise / request / reply) sequence. + + This function attempts to complete the DHCP sequence. If this sequence is completed, + then EFI_SUCCESS is returned, and the DhcpCompleted, ProxyOfferReceived, StationIp, + SubnetMask, DhcpDiscover, DhcpAck, and ProxyOffer fields of the EFI_PXE_BASE_CODE_MODE + structure are filled in. + If SortOffers is TRUE, then the cached DHCP offer packets will be sorted before + they are tried. If SortOffers is FALSE, then the cached DHCP offer packets will + be tried in the order in which they are received. Please see the Preboot Execution + Environment (PXE) Specification for additional details on the implementation of DHCP. + This function can take at least 31 seconds to timeout and return control to the + caller. If the DHCP sequence does not complete, then EFI_TIMEOUT will be returned. + If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, + then the DHCP sequence will be stopped and EFI_ABORTED will be returned. @param This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance. @param SortOffers TRUE if the offers received should be sorted. Set to FALSE to try the @@ -352,6 +415,26 @@ EFI_STATUS /** Attempts to complete the PXE Boot Server and/or boot image discovery sequence. + + This function attempts to complete the PXE Boot Server and/or boot image discovery + sequence. If this sequence is completed, then EFI_SUCCESS is returned, and the + PxeDiscoverValid, PxeDiscover, PxeReplyReceived, and PxeReply fields of the + EFI_PXE_BASE_CODE_MODE structure are filled in. If UseBis is TRUE, then the + PxeBisReplyReceived and PxeBisReply fields of the EFI_PXE_BASE_CODE_MODE structure + will also be filled in. If UseBis is FALSE, then PxeBisReplyValid will be set to FALSE. + In the structure referenced by parameter Info, the PXE Boot Server list, SrvList[], + has two uses: It is the Boot Server IP address list used for unicast discovery + (if the UseUCast field is TRUE), and it is the list used for Boot Server verification + (if the MustUseList field is TRUE). Also, if the MustUseList field in that structure + is TRUE and the AcceptAnyResponse field in the SrvList[] array is TRUE, any Boot + Server reply of that type will be accepted. If the AcceptAnyResponse field is + FALSE, only responses from Boot Servers with matching IP addresses will be accepted. + This function can take at least 10 seconds to timeout and return control to the + caller. If the Discovery sequence does not complete, then EFI_TIMEOUT will be + returned. Please see the Preboot Execution Environment (PXE) Specification for + additional details on the implementation of the Discovery sequence. + If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, + then the Discovery sequence is stopped and EFI_ABORTED will be returned. @param This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance. @param Type The type of bootstrap to perform. @@ -385,6 +468,49 @@ EFI_STATUS /** Used to perform TFTP and MTFTP services. + + This function is used to perform TFTP and MTFTP services. This includes the + TFTP operations to get the size of a file, read a directory, read a file, and + write a file. It also includes the MTFTP operations to get the size of a file, + read a directory, and read a file. The type of operation is specified by Operation. + If the callback function that is invoked during the TFTP/MTFTP operation does + not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, then EFI_ABORTED will + be returned. + For read operations, the return data will be placed in the buffer specified by + BufferPtr. If BufferSize is too small to contain the entire downloaded file, + then EFI_BUFFER_TOO_SMALL will be returned and BufferSize will be set to zero + or the size of the requested file (the size of the requested file is only returned + if the TFTP server supports TFTP options). If BufferSize is large enough for the + read operation, then BufferSize will be set to the size of the downloaded file, + and EFI_SUCCESS will be returned. Applications using the PxeBc.Mtftp() services + should use the get-file-size operations to determine the size of the downloaded + file prior to using the read-file operations--especially when downloading large + (greater than 64 MB) files--instead of making two calls to the read-file operation. + Following this recommendation will save time if the file is larger than expected + and the TFTP server does not support TFTP option extensions. Without TFTP option + extension support, the client has to download the entire file, counting and discarding + the received packets, to determine the file size. + For write operations, the data to be sent is in the buffer specified by BufferPtr. + BufferSize specifies the number of bytes to send. If the write operation completes + successfully, then EFI_SUCCESS will be returned. + For TFTP “get file size” operations, the size of the requested file or directory + is returned in BufferSize, and EFI_SUCCESS will be returned. If the TFTP server + does not support options, the file will be downloaded into a bit bucket and the + length of the downloaded file will be returned. For MTFTP “get file size” operations, + if the MTFTP server does not support the “get file size” option, EFI_UNSUPPORTED + will be returned. + This function can take up to 10 seconds to timeout and return control to the caller. + If the TFTP sequence does not complete, EFI_TIMEOUT will be returned. + If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, + then the TFTP sequence is stopped and EFI_ABORTED will be returned. + The format of the data returned from a TFTP read directory operation is a null-terminated + filename followed by a null-terminated information string, of the form + “size year-month-day hour:minute:second” (i.e. %d %d-%d-%d %d:%d:%f - note that + the seconds field can be a decimal number), where the date and time are UTC. For + an MTFTP read directory command, there is additionally a null-terminated multicast + IP address preceding the filename of the form %d.%d.%d.%d for IP v4. The final + entry is itself null-terminated, so that the final information string is terminated + with two null octets. @param This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance. @param Operation The type of operation to perform. @@ -428,6 +554,17 @@ EFI_STATUS /** Writes a UDP packet to the network interface. + + This function writes a UDP packet specified by the (optional HeaderPtr and) + BufferPtr parameters to the network interface. The UDP header is automatically + built by this routine. It uses the parameters OpFlags, DestIp, DestPort, GatewayIp, + SrcIp, and SrcPort to build this header. If the packet is successfully built and + transmitted through the network interface, then EFI_SUCCESS will be returned. + If a timeout occurs during the transmission of the packet, then EFI_TIMEOUT will + be returned. If an ICMP error occurs during the transmission of the packet, then + the IcmpErrorReceived field is set to TRUE, the IcmpError field is filled in and + EFI_ICMP_ERROR will be returned. If the Callback Protocol does not return + EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, then EFI_ABORTED will be returned. @param This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance. @param OpFlags The UDP operation flags. @@ -470,12 +607,24 @@ EFI_STATUS /** Reads a UDP packet from the network interface. + + This function reads a UDP packet from a network interface. The data contents + are returned in (the optional HeaderPtr and) BufferPtr, and the size of the + buffer received is returned in BufferSize . If the input BufferSize is smaller + than the UDP packet received (less optional HeaderSize), it will be set to the + required size, and EFI_BUFFER_TOO_SMALL will be returned. In this case, the + contents of BufferPtr are undefined, and the packet is lost. If a UDP packet is + successfully received, then EFI_SUCCESS will be returned, and the information + from the UDP header will be returned in DestIp, DestPort, SrcIp, and SrcPort if + they are not NULL. + Depending on the values of OpFlags and the DestIp, DestPort, SrcIp, and SrcPort + input values, different types of UDP packet receive filtering will be performed. + The following tables summarize these receive filter operations. @param This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance. @param OpFlags The UDP operation flags. @param DestIp The destination IP address. - @param DestPort The destination UDP port number. - @param GatewayIp The gateway IP address. + @param DestPort The destination UDP port number. @param SrcIp The source IP address. @param SrcPort The source UDP port number. @param HeaderSize An optional field which may be set to the length of a header at @@ -485,7 +634,7 @@ EFI_STATUS @param BufferSize A pointer to the size of the data at BufferPtr. @param BufferPtr A pointer to the data to be read. - @retval EFI_SUCCESS The UDP Write operation was completed. + @retval EFI_SUCCESS The UDP Read operation was completed. @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state. @retval EFI_INVALID_PARAMETER One or more parameters are invalid. @retval EFI_DEVICE_ERROR The network device encountered an error during this operation. @@ -511,6 +660,27 @@ EFI_STATUS /** Updates the IP receive filters of a network device and enables software filtering. + + The NewFilter field is used to modify the network device's current IP receive + filter settings and to enable a software filter. This function updates the IpFilter + field of the EFI_PXE_BASE_CODE_MODE structure with the contents of NewIpFilter. + The software filter is used when the USE_FILTER in OpFlags is set to UdpRead(). + The current hardware filter remains in effect no matter what the settings of OpFlags + are, so that the meaning of ANY_DEST_IP set in OpFlags to UdpRead() is from those + packets whose reception is enabled in hardware – physical NIC address (unicast), + broadcast address, logical address or addresses (multicast), or all (promiscuous). + UdpRead() does not modify the IP filter settings. + Dhcp(), Discover(), and Mtftp() set the IP filter, and return with the IP receive + filter list emptied and the filter set to EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP. + If an application or driver wishes to preserve the IP receive filter settings, + it will have to preserve the IP receive filter settings before these calls, and + use SetIpFilter() to restore them after the calls. If incompatible filtering is + requested (for example, PROMISCUOUS with anything else) or if the device does not + support a requested filter setting and it cannot be accommodated in software + (for example, PROMISCUOUS not supported), EFI_INVALID_PARAMETER will be returned. + The IPlist field is used to enable IPs other than the StationIP. They may be + multicast or unicast. If IPcnt is set as well as EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP, + then both the StationIP and the IPs from the IPlist will be used. @param This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance. @param NewFilter Pointer to the new set of IP receive filters. @@ -529,6 +699,19 @@ EFI_STATUS /** Uses the ARP protocol to resolve a MAC address. + + This function uses the ARP protocol to resolve a MAC address. The UsingIpv6 field + of the EFI_PXE_BASE_CODE_MODE structure is used to determine if IPv4 or IPv6 + addresses are being used. The IP address specified by IpAddr is used to resolve + a MAC address. If the ARP protocol succeeds in resolving the specified address, + then the ArpCacheEntries and ArpCache fields of the EFI_PXE_BASE_CODE_MODE structure + are updated, and EFI_SUCCESS is returned. If MacAddr is not NULL, the resolved + MAC address is placed there as well. + If the PXE Base Code protocol is in the stopped state, then EFI_NOT_STARTED is + returned. If the ARP protocol encounters a timeout condition while attempting + to resolve an address, then EFI_TIMEOUT is returned. If the Callback Protocol + does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, then EFI_ABORTED is + returned. @param This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance. @param IpAddr Pointer to the IP address that is used to resolve a MAC address. @@ -553,6 +736,18 @@ EFI_STATUS /** Updates the parameters that affect the operation of the PXE Base Code Protocol. + + This function sets parameters that affect the operation of the PXE Base Code Protocol. + The parameter specified by NewAutoArp is used to control the generation of ARP + protocol packets. If NewAutoArp is TRUE, then ARP Protocol packets will be generated + as required by the PXE Base Code Protocol. If NewAutoArp is FALSE, then no ARP + Protocol packets will be generated. In this case, the only mappings that are + available are those stored in the ArpCache of the EFI_PXE_BASE_CODE_MODE structure. + If there are not enough mappings in the ArpCache to perform a PXE Base Code Protocol + service, then the service will fail. This function updates the AutoArp field of + the EFI_PXE_BASE_CODE_MODE structure to NewAutoArp. + The SetParameters() call must be invoked after a Callback Protocol is installed + to enable the use of callbacks. @param This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance. @param NewAutoArp If not NULL, a pointer to a value that specifies whether to replace the @@ -584,6 +779,17 @@ EFI_STATUS /** Updates the station IP address and/or subnet mask values of a network device. + + This function updates the station IP address and/or subnet mask values of a network + device. + The NewStationIp field is used to modify the network device's current IP address. + If NewStationIP is NULL, then the current IP address will not be modified. Otherwise, + this function updates the StationIp field of the EFI_PXE_BASE_CODE_MODE structure + with NewStationIp. + The NewSubnetMask field is used to modify the network device's current subnet + mask. If NewSubnetMask is NULL, then the current subnet mask will not be modified. + Otherwise, this function updates the SubnetMask field of the EFI_PXE_BASE_CODE_MODE + structure with NewSubnetMask. @param This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance. @param NewStationIp Pointer to the new IP address to be used by the network device. @@ -604,6 +810,9 @@ EFI_STATUS /** Updates the contents of the cached DHCP and Discover packets. + + The pointers to the new packets are used to update the contents of the cached + packets in the EFI_PXE_BASE_CODE_MODE structure. @param This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance. @param NewDhcpDiscoverValid Pointer to a value that will replace the current diff --git a/MdePkg/Include/Protocol/PxeBaseCodeCallBack.h b/MdePkg/Include/Protocol/PxeBaseCodeCallBack.h index 26b1503582..5f6fd7cb54 100644 --- a/MdePkg/Include/Protocol/PxeBaseCodeCallBack.h +++ b/MdePkg/Include/Protocol/PxeBaseCodeCallBack.h @@ -75,6 +75,16 @@ typedef enum { Callback function that is invoked when the PXE Base Code Protocol is about to transmit, has received, or is waiting to receive a packet. + This function is invoked when the PXE Base Code Protocol is about to transmit, has received, + or is waiting to receive a packet. Parameters Function and Received specify the type of event. + Parameters PacketLen and Packet specify the packet that generated the event. If these fields + are zero and NULL respectively, then this is a status update callback. If the operation specified + by Function is to continue, then CALLBACK_STATUS_CONTINUE should be returned. If the operation + specified by Function should be aborted, then CALLBACK_STATUS_ABORT should be returned. Due to + the polling nature of UEFI device drivers, a callback function should not execute for more than 5 ms. + The SetParameters() function must be called after a Callback Protocol is installed to enable the + use of callbacks. + @param This Pointer to the EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL instance. @param Function The PXE Base Code Protocol function that is waiting for an event. @param Received TRUE if the callback is being invoked due to a receive event. FALSE if -- cgit v1.2.3