/** @file\r
+ Network library.\r
\r
-Copyright (c) 2005 - 2007, Intel Corporation\r
-All rights reserved. This program and the accompanying materials\r
-are licensed and made available under the terms and conditions of the BSD License\r
-which accompanies this distribution. The full text of the license may be found at\r
-http://opensource.org/licenses/bsd-license.php\r
-\r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-\r
-Module Name:\r
-\r
- NetLib.c\r
-\r
-Abstract:\r
-\r
-\r
-\r
+Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>\r
+(C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
**/\r
\r
-#include <PiDxe.h>\r
+#include <Uefi.h>\r
+\r
+#include <IndustryStandard/SmBios.h>\r
\r
+#include <Protocol/DriverBinding.h>\r
#include <Protocol/ServiceBinding.h>\r
#include <Protocol/SimpleNetwork.h>\r
-#include <Protocol/LoadedImage.h>\r
-#include <Protocol/NicIp4Config.h>\r
+#include <Protocol/AdapterInformation.h>\r
+#include <Protocol/ManagedNetwork.h>\r
+#include <Protocol/Ip4Config2.h>\r
#include <Protocol/ComponentName.h>\r
#include <Protocol/ComponentName2.h>\r
\r
+#include <Guid/SmBios.h>\r
+\r
#include <Library/NetLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/UefiRuntimeServicesTableLib.h>\r
-#include <Library/UefiLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
+#include <Library/DevicePathLib.h>\r
+#include <Library/PrintLib.h>\r
+#include <Library/UefiLib.h>\r
\r
-\r
-EFI_DPC_PROTOCOL *mDpc = NULL;\r
+#define NIC_ITEM_CONFIG_SIZE (sizeof (NIC_IP4_CONFIG_INFO) + sizeof (EFI_IP4_ROUTE_TABLE) * MAX_IP4_CONFIG_IN_VARIABLE)\r
+#define DEFAULT_ZERO_START ((UINTN) ~0)\r
\r
//\r
// All the supported IP4 maskes in host byte order.\r
//\r
-IP4_ADDR mIp4AllMasks[IP4_MASK_NUM] = {\r
+GLOBAL_REMOVE_IF_UNREFERENCED IP4_ADDR gIp4AllMasks[IP4_MASK_NUM] = {\r
0x00000000,\r
0x80000000,\r
0xC0000000,\r
0xFFFFFFFF,\r
};\r
\r
-EFI_IPv4_ADDRESS mZeroIp4Addr = {{0, 0, 0, 0}};\r
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_IPv4_ADDRESS mZeroIp4Addr = {{0, 0, 0, 0}};\r
+\r
+//\r
+// Any error level digitally larger than mNetDebugLevelMax\r
+// will be silently discarded.\r
+//\r
+GLOBAL_REMOVE_IF_UNREFERENCED UINTN mNetDebugLevelMax = NETDEBUG_LEVEL_ERROR;\r
+GLOBAL_REMOVE_IF_UNREFERENCED UINT32 mSyslogPacketSeq = 0xDEADBEEF;\r
+\r
+//\r
+// You can change mSyslogDstMac mSyslogDstIp and mSyslogSrcIp\r
+// here to direct the syslog packets to the syslog deamon. The\r
+// default is broadcast to both the ethernet and IP.\r
+//\r
+GLOBAL_REMOVE_IF_UNREFERENCED UINT8 mSyslogDstMac[NET_ETHER_ADDR_LEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};\r
+GLOBAL_REMOVE_IF_UNREFERENCED UINT32 mSyslogDstIp = 0xffffffff;\r
+GLOBAL_REMOVE_IF_UNREFERENCED UINT32 mSyslogSrcIp = 0;\r
+\r
+GLOBAL_REMOVE_IF_UNREFERENCED CHAR8 *mMonthName[] = {\r
+ "Jan",\r
+ "Feb",\r
+ "Mar",\r
+ "Apr",\r
+ "May",\r
+ "Jun",\r
+ "Jul",\r
+ "Aug",\r
+ "Sep",\r
+ "Oct",\r
+ "Nov",\r
+ "Dec"\r
+};\r
+\r
+//\r
+// VLAN device path node template\r
+//\r
+GLOBAL_REMOVE_IF_UNREFERENCED VLAN_DEVICE_PATH mNetVlanDevicePathTemplate = {\r
+ {\r
+ MESSAGING_DEVICE_PATH,\r
+ MSG_VLAN_DP,\r
+ {\r
+ (UINT8) (sizeof (VLAN_DEVICE_PATH)),\r
+ (UINT8) ((sizeof (VLAN_DEVICE_PATH)) >> 8)\r
+ }\r
+ },\r
+ 0\r
+};\r
+\r
+/**\r
+ Locate the handles that support SNP, then open one of them\r
+ to send the syslog packets. The caller isn't required to close\r
+ the SNP after use because the SNP is opened by HandleProtocol.\r
+\r
+ @return The point to SNP if one is properly openned. Otherwise NULL\r
+\r
+**/\r
+EFI_SIMPLE_NETWORK_PROTOCOL *\r
+SyslogLocateSnp (\r
+ VOID\r
+ )\r
+{\r
+ EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r
+ EFI_STATUS Status;\r
+ EFI_HANDLE *Handles;\r
+ UINTN HandleCount;\r
+ UINTN Index;\r
+\r
+ //\r
+ // Locate the handles which has SNP installed.\r
+ //\r
+ Handles = NULL;\r
+ Status = gBS->LocateHandleBuffer (\r
+ ByProtocol,\r
+ &gEfiSimpleNetworkProtocolGuid,\r
+ NULL,\r
+ &HandleCount,\r
+ &Handles\r
+ );\r
+\r
+ if (EFI_ERROR (Status) || (HandleCount == 0)) {\r
+ return NULL;\r
+ }\r
+\r
+ //\r
+ // Try to open one of the ethernet SNP protocol to send packet\r
+ //\r
+ Snp = NULL;\r
+\r
+ for (Index = 0; Index < HandleCount; Index++) {\r
+ Status = gBS->HandleProtocol (\r
+ Handles[Index],\r
+ &gEfiSimpleNetworkProtocolGuid,\r
+ (VOID **) &Snp\r
+ );\r
+\r
+ if ((Status == EFI_SUCCESS) && (Snp != NULL) &&\r
+ (Snp->Mode->IfType == NET_IFTYPE_ETHERNET) &&\r
+ (Snp->Mode->MaxPacketSize >= NET_SYSLOG_PACKET_LEN)) {\r
+\r
+ break;\r
+ }\r
+\r
+ Snp = NULL;\r
+ }\r
+\r
+ FreePool (Handles);\r
+ return Snp;\r
+}\r
+\r
+/**\r
+ Transmit a syslog packet synchronously through SNP. The Packet\r
+ already has the ethernet header prepended. This function should\r
+ fill in the source MAC because it will try to locate a SNP each\r
+ time it is called to avoid the problem if SNP is unloaded.\r
+ This code snip is copied from MNP.\r
+ If Packet is NULL, then ASSERT().\r
+\r
+ @param[in] Packet The Syslog packet\r
+ @param[in] Length The length of the packet\r
+\r
+ @retval EFI_DEVICE_ERROR Failed to locate a usable SNP protocol\r
+ @retval EFI_TIMEOUT Timeout happened to send the packet.\r
+ @retval EFI_SUCCESS Packet is sent.\r
+\r
+**/\r
+EFI_STATUS\r
+SyslogSendPacket (\r
+ IN CHAR8 *Packet,\r
+ IN UINT32 Length\r
+ )\r
+{\r
+ EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r
+ ETHER_HEAD *Ether;\r
+ EFI_STATUS Status;\r
+ EFI_EVENT TimeoutEvent;\r
+ UINT8 *TxBuf;\r
+\r
+ ASSERT (Packet != NULL);\r
+\r
+ Snp = SyslogLocateSnp ();\r
+\r
+ if (Snp == NULL) {\r
+ return EFI_DEVICE_ERROR;\r
+ }\r
+\r
+ Ether = (ETHER_HEAD *) Packet;\r
+ CopyMem (Ether->SrcMac, Snp->Mode->CurrentAddress.Addr, NET_ETHER_ADDR_LEN);\r
+\r
+ //\r
+ // Start the timeout event.\r
+ //\r
+ Status = gBS->CreateEvent (\r
+ EVT_TIMER,\r
+ TPL_NOTIFY,\r
+ NULL,\r
+ NULL,\r
+ &TimeoutEvent\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = gBS->SetTimer (TimeoutEvent, TimerRelative, NET_SYSLOG_TX_TIMEOUT);\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto ON_EXIT;\r
+ }\r
+\r
+ for (;;) {\r
+ //\r
+ // Transmit the packet through SNP.\r
+ //\r
+ Status = Snp->Transmit (Snp, 0, Length, Packet, NULL, NULL, NULL);\r
+\r
+ if ((Status != EFI_SUCCESS) && (Status != EFI_NOT_READY)) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ break;\r
+ }\r
+\r
+ //\r
+ // If Status is EFI_SUCCESS, the packet is put in the transmit queue.\r
+ // if Status is EFI_NOT_READY, the transmit engine of the network\r
+ // interface is busy. Both need to sync SNP.\r
+ //\r
+ TxBuf = NULL;\r
+\r
+ do {\r
+ //\r
+ // Get the recycled transmit buffer status.\r
+ //\r
+ Snp->GetStatus (Snp, NULL, (VOID **) &TxBuf);\r
+\r
+ if (!EFI_ERROR (gBS->CheckEvent (TimeoutEvent))) {\r
+ Status = EFI_TIMEOUT;\r
+ break;\r
+ }\r
+\r
+ } while (TxBuf == NULL);\r
+\r
+ if ((Status == EFI_SUCCESS) || (Status == EFI_TIMEOUT)) {\r
+ break;\r
+ }\r
+\r
+ //\r
+ // Status is EFI_NOT_READY. Restart the timer event and\r
+ // call Snp->Transmit again.\r
+ //\r
+ gBS->SetTimer (TimeoutEvent, TimerRelative, NET_SYSLOG_TX_TIMEOUT);\r
+ }\r
+\r
+ gBS->SetTimer (TimeoutEvent, TimerCancel, 0);\r
+\r
+ON_EXIT:\r
+ gBS->CloseEvent (TimeoutEvent);\r
+ return Status;\r
+}\r
\r
/**\r
- Converts the low nibble of a byte to hex unicode character.\r
+ Build a syslog packet, including the Ethernet/Ip/Udp headers\r
+ and user's message.\r
\r
- @param Nibble lower nibble of a byte.\r
+ @param[in] Level Syslog severity level\r
+ @param[in] Module The module that generates the log\r
+ @param[in] File The file that contains the current log\r
+ @param[in] Line The line of code in the File that contains the current log\r
+ @param[in] Message The log message\r
+ @param[in] BufLen The lenght of the Buf\r
+ @param[out] Buf The buffer to put the packet data\r
\r
- @return Hex unicode character.\r
+ @return The length of the syslog packet built, 0 represents no packet is built.\r
\r
**/\r
-CHAR16\r
-NibbleToHexChar (\r
- IN UINT8 Nibble\r
+UINT32\r
+SyslogBuildPacket (\r
+ IN UINT32 Level,\r
+ IN UINT8 *Module,\r
+ IN UINT8 *File,\r
+ IN UINT32 Line,\r
+ IN UINT8 *Message,\r
+ IN UINT32 BufLen,\r
+ OUT CHAR8 *Buf\r
)\r
{\r
+ EFI_STATUS Status;\r
+ ETHER_HEAD *Ether;\r
+ IP4_HEAD *Ip4;\r
+ EFI_UDP_HEADER *Udp4;\r
+ EFI_TIME Time;\r
+ UINT32 Pri;\r
+ UINT32 Len;\r
+\r
+ //\r
+ // Fill in the Ethernet header. Leave alone the source MAC.\r
+ // SyslogSendPacket will fill in the address for us.\r
+ //\r
+ Ether = (ETHER_HEAD *) Buf;\r
+ CopyMem (Ether->DstMac, mSyslogDstMac, NET_ETHER_ADDR_LEN);\r
+ ZeroMem (Ether->SrcMac, NET_ETHER_ADDR_LEN);\r
+\r
+ Ether->EtherType = HTONS (0x0800); // IPv4 protocol\r
+\r
+ Buf += sizeof (ETHER_HEAD);\r
+ BufLen -= sizeof (ETHER_HEAD);\r
+\r
+ //\r
+ // Fill in the IP header\r
+ //\r
+ Ip4 = (IP4_HEAD *) Buf;\r
+ Ip4->HeadLen = 5;\r
+ Ip4->Ver = 4;\r
+ Ip4->Tos = 0;\r
+ Ip4->TotalLen = 0;\r
+ Ip4->Id = (UINT16) mSyslogPacketSeq;\r
+ Ip4->Fragment = 0;\r
+ Ip4->Ttl = 16;\r
+ Ip4->Protocol = 0x11;\r
+ Ip4->Checksum = 0;\r
+ Ip4->Src = mSyslogSrcIp;\r
+ Ip4->Dst = mSyslogDstIp;\r
+\r
+ Buf += sizeof (IP4_HEAD);\r
+ BufLen -= sizeof (IP4_HEAD);\r
+\r
+ //\r
+ // Fill in the UDP header, Udp checksum is optional. Leave it zero.\r
+ //\r
+ Udp4 = (EFI_UDP_HEADER *) Buf;\r
+ Udp4->SrcPort = HTONS (514);\r
+ Udp4->DstPort = HTONS (514);\r
+ Udp4->Length = 0;\r
+ Udp4->Checksum = 0;\r
+\r
+ Buf += sizeof (EFI_UDP_HEADER);\r
+ BufLen -= sizeof (EFI_UDP_HEADER);\r
+\r
+ //\r
+ // Build the syslog message body with <PRI> Timestamp machine module Message\r
+ //\r
+ Pri = ((NET_SYSLOG_FACILITY & 31) << 3) | (Level & 7);\r
+ Status = gRT->GetTime (&Time, NULL);\r
+ if (EFI_ERROR (Status)) {\r
+ return 0;\r
+ }\r
+\r
+ //\r
+ // Use %a to format the ASCII strings, %s to format UNICODE strings\r
+ //\r
+ Len = 0;\r
+ Len += (UINT32) AsciiSPrint (\r
+ Buf,\r
+ BufLen,\r
+ "<%d> %a %d %d:%d:%d ",\r
+ Pri,\r
+ mMonthName [Time.Month-1],\r
+ Time.Day,\r
+ Time.Hour,\r
+ Time.Minute,\r
+ Time.Second\r
+ );\r
+\r
+ Len += (UINT32) AsciiSPrint (\r
+ Buf + Len,\r
+ BufLen - Len,\r
+ "Tiano %a: %a (Line: %d File: %a)",\r
+ Module,\r
+ Message,\r
+ Line,\r
+ File\r
+ );\r
+ Len ++;\r
+\r
//\r
- // Porting Guide:\r
- // This library interface is simply obsolete.\r
- // Include the source code to user code.\r
+ // OK, patch the IP length/checksum and UDP length fields.\r
//\r
+ Len += sizeof (EFI_UDP_HEADER);\r
+ Udp4->Length = HTONS ((UINT16) Len);\r
+\r
+ Len += sizeof (IP4_HEAD);\r
+ Ip4->TotalLen = HTONS ((UINT16) Len);\r
+ Ip4->Checksum = (UINT16) (~NetblockChecksum ((UINT8 *) Ip4, sizeof (IP4_HEAD)));\r
+\r
+ return Len + sizeof (ETHER_HEAD);\r
+}\r
+\r
+/**\r
+ Allocate a buffer, then format the message to it. This is a\r
+ help function for the NET_DEBUG_XXX macros. The PrintArg of\r
+ these macros treats the variable length print parameters as a\r
+ single parameter, and pass it to the NetDebugASPrint. For\r
+ example, NET_DEBUG_TRACE ("Tcp", ("State transit to %a\n", Name))\r
+ if extracted to:\r
+\r
+ NetDebugOutput (\r
+ NETDEBUG_LEVEL_TRACE,\r
+ "Tcp",\r
+ __FILE__,\r
+ __LINE__,\r
+ NetDebugASPrint ("State transit to %a\n", Name)\r
+ )\r
+\r
+ If Format is NULL, then ASSERT().\r
+\r
+ @param Format The ASCII format string.\r
+ @param ... The variable length parameter whose format is determined\r
+ by the Format string.\r
+\r
+ @return The buffer containing the formatted message,\r
+ or NULL if failed to allocate memory.\r
+\r
+**/\r
+CHAR8 *\r
+EFIAPI\r
+NetDebugASPrint (\r
+ IN CHAR8 *Format,\r
+ ...\r
+ )\r
+{\r
+ VA_LIST Marker;\r
+ CHAR8 *Buf;\r
+\r
+ ASSERT (Format != NULL);\r
+\r
+ Buf = (CHAR8 *) AllocatePool (NET_DEBUG_MSG_LEN);\r
\r
- Nibble &= 0x0F;\r
- if (Nibble <= 0x9) {\r
- return (CHAR16)(Nibble + L'0');\r
+ if (Buf == NULL) {\r
+ return NULL;\r
}\r
\r
- return (CHAR16)(Nibble - 0xA + L'A');\r
+ VA_START (Marker, Format);\r
+ AsciiVSPrint (Buf, NET_DEBUG_MSG_LEN, Format, Marker);\r
+ VA_END (Marker);\r
+\r
+ return Buf;\r
}\r
\r
/**\r
- Return the length of the mask. If the mask is invalid,\r
- return the invalid length 33, which is IP4_MASK_NUM.\r
+ Builds an UDP4 syslog packet and send it using SNP.\r
+\r
+ This function will locate a instance of SNP then send the message through it.\r
+ Because it isn't open the SNP BY_DRIVER, apply caution when using it.\r
+\r
+ @param Level The severity level of the message.\r
+ @param Module The Moudle that generates the log.\r
+ @param File The file that contains the log.\r
+ @param Line The exact line that contains the log.\r
+ @param Message The user message to log.\r
+\r
+ @retval EFI_INVALID_PARAMETER Any input parameter is invalid.\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory for the packet.\r
+ @retval EFI_DEVICE_ERROR Device error occurs.\r
+ @retval EFI_SUCCESS The log is discard because that it is more verbose\r
+ than the mNetDebugLevelMax. Or, it has been sent out.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetDebugOutput (\r
+ IN UINT32 Level,\r
+ IN UINT8 *Module,\r
+ IN UINT8 *File,\r
+ IN UINT32 Line,\r
+ IN UINT8 *Message\r
+ )\r
+{\r
+ CHAR8 *Packet;\r
+ UINT32 Len;\r
+ EFI_STATUS Status;\r
+\r
+ //\r
+ // Check whether the message should be sent out\r
+ //\r
+ if (Message == NULL || File == NULL || Module == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (Level > mNetDebugLevelMax) {\r
+ Status = EFI_SUCCESS;\r
+ goto ON_EXIT;\r
+ }\r
+\r
+ //\r
+ // Allocate a maxium of 1024 bytes, the caller should ensure\r
+ // that the message plus the ethernet/ip/udp header is shorter\r
+ // than this\r
+ //\r
+ Packet = (CHAR8 *) AllocatePool (NET_SYSLOG_PACKET_LEN);\r
+\r
+ if (Packet == NULL) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto ON_EXIT;\r
+ }\r
+\r
+ //\r
+ // Build the message: Ethernet header + IP header + Udp Header + user data\r
+ //\r
+ Len = SyslogBuildPacket (\r
+ Level,\r
+ Module,\r
+ File,\r
+ Line,\r
+ Message,\r
+ NET_SYSLOG_PACKET_LEN,\r
+ Packet\r
+ );\r
+ if (Len == 0) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ } else {\r
+ mSyslogPacketSeq++;\r
+ Status = SyslogSendPacket (Packet, Len);\r
+ }\r
+\r
+ FreePool (Packet);\r
+\r
+ON_EXIT:\r
+ FreePool (Message);\r
+ return Status;\r
+}\r
+/**\r
+ Return the length of the mask.\r
+\r
+ Return the length of the mask, the correct value is from 0 to 32.\r
+ If the mask is invalid, return the invalid length 33, which is IP4_MASK_NUM.\r
NetMask is in the host byte order.\r
\r
- @param NetMask The netmask to get the length from\r
+ @param[in] NetMask The netmask to get the length from.\r
\r
- @return The length of the netmask, IP4_MASK_NUM if the mask isn't\r
- @return supported.\r
+ @return The length of the netmask, IP4_MASK_NUM if the mask is invalid.\r
\r
**/\r
INTN\r
{\r
INTN Index;\r
\r
- for (Index = 0; Index < IP4_MASK_NUM; Index++) {\r
- if (NetMask == mIp4AllMasks[Index]) {\r
+ for (Index = 0; Index <= IP4_MASK_MAX; Index++) {\r
+ if (NetMask == gIp4AllMasks[Index]) {\r
break;\r
}\r
}\r
\r
\r
/**\r
- Return the class of the address, such as class a, b, c.\r
+ Return the class of the IP address, such as class A, B, C.\r
Addr is in host byte order.\r
\r
- @param Addr The address to get the class from\r
+ [ATTENTION]\r
+ Classful addressing (IP class A/B/C) has been deprecated according to RFC4632.\r
+ Caller of this function could only check the returned value against\r
+ IP4_ADDR_CLASSD (multicast) or IP4_ADDR_CLASSE (reserved) now.\r
+\r
+ The address of class A starts with 0.\r
+ If the address belong to class A, return IP4_ADDR_CLASSA.\r
+ The address of class B starts with 10.\r
+ If the address belong to class B, return IP4_ADDR_CLASSB.\r
+ The address of class C starts with 110.\r
+ If the address belong to class C, return IP4_ADDR_CLASSC.\r
+ The address of class D starts with 1110.\r
+ If the address belong to class D, return IP4_ADDR_CLASSD.\r
+ The address of class E starts with 1111.\r
+ If the address belong to class E, return IP4_ADDR_CLASSE.\r
+\r
\r
- @return IP address class, such as IP4_ADDR_CLASSA\r
+ @param[in] Addr The address to get the class from.\r
+\r
+ @return IP address class, such as IP4_ADDR_CLASSA.\r
\r
**/\r
INTN\r
\r
/**\r
Check whether the IP is a valid unicast address according to\r
- the netmask. If NetMask is zero, use the IP address's class to\r
- get the default mask.\r
+ the netmask.\r
+\r
+ ASSERT if NetMask is zero.\r
\r
- @param Ip The IP to check againist\r
- @param NetMask The mask of the IP\r
+ If all bits of the host address of IP are 0 or 1, IP is also not a valid unicast address,\r
+ except when the originator is one of the endpoints of a point-to-point link with a 31-bit\r
+ mask (RFC3021), or a 32bit NetMask (all 0xFF) is used for special network environment (e.g.\r
+ PPP link).\r
\r
- @return TRUE if IP is a valid unicast address on the network, otherwise FALSE\r
+ @param[in] Ip The IP to check against.\r
+ @param[in] NetMask The mask of the IP.\r
+\r
+ @return TRUE if IP is a valid unicast address on the network, otherwise FALSE.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
-Ip4IsUnicast (\r
+NetIp4IsUnicast (\r
IN IP4_ADDR Ip,\r
IN IP4_ADDR NetMask\r
)\r
{\r
- INTN Class;\r
+ INTN MaskLength;\r
\r
- Class = NetGetIpClass (Ip);\r
+ ASSERT (NetMask != 0);\r
\r
- if ((Ip == 0) || (Class >= IP4_ADDR_CLASSD)) {\r
+ if (Ip == 0 || IP4_IS_LOCAL_BROADCAST (Ip)) {\r
return FALSE;\r
}\r
\r
- if (NetMask == 0) {\r
- NetMask = mIp4AllMasks[Class << 3];\r
- }\r
-\r
- if (((Ip &~NetMask) == ~NetMask) || ((Ip &~NetMask) == 0)) {\r
- return FALSE;\r
+ MaskLength = NetGetMaskLength (NetMask);\r
+ ASSERT ((MaskLength >= 0) && (MaskLength <= IP4_MASK_NUM));\r
+ if (MaskLength < 31) {\r
+ if (((Ip &~NetMask) == ~NetMask) || ((Ip &~NetMask) == 0)) {\r
+ return FALSE;\r
+ }\r
}\r
\r
return TRUE;\r
}\r
\r
-\r
/**\r
- Initialize a random seed using current time.\r
+ Check whether the incoming IPv6 address is a valid unicast address.\r
\r
- None\r
+ ASSERT if Ip6 is NULL.\r
\r
- @return The random seed initialized with current time.\r
+ If the address is a multicast address has binary 0xFF at the start, it is not\r
+ a valid unicast address. If the address is unspecified ::, it is not a valid\r
+ unicast address to be assigned to any node. If the address is loopback address\r
+ ::1, it is also not a valid unicast address to be assigned to any physical\r
+ interface.\r
+\r
+ @param[in] Ip6 The IPv6 address to check against.\r
+\r
+ @return TRUE if Ip6 is a valid unicast address on the network, otherwise FALSE.\r
\r
**/\r
-UINT32\r
+BOOLEAN\r
EFIAPI\r
-NetRandomInitSeed (\r
- VOID\r
+NetIp6IsValidUnicast (\r
+ IN EFI_IPv6_ADDRESS *Ip6\r
)\r
{\r
- EFI_TIME Time;\r
- UINT32 Seed;\r
-\r
- gRT->GetTime (&Time, NULL);\r
- Seed = (~Time.Hour << 24 | Time.Day << 16 | Time.Minute << 8 | Time.Second);\r
- Seed ^= Time.Nanosecond;\r
- Seed ^= Time.Year << 7;\r
-\r
- return Seed;\r
-}\r
+ UINT8 Byte;\r
+ UINT8 Index;\r
\r
+ ASSERT (Ip6 != NULL);\r
\r
-/**\r
- Extract a UINT32 from a byte stream, then convert it to host\r
- byte order. Use this function to avoid alignment error.\r
+ if (Ip6->Addr[0] == 0xFF) {\r
+ return FALSE;\r
+ }\r
\r
- @param Buf The buffer to extract the UINT32.\r
+ for (Index = 0; Index < 15; Index++) {\r
+ if (Ip6->Addr[Index] != 0) {\r
+ return TRUE;\r
+ }\r
+ }\r
\r
- @return The UINT32 extracted.\r
+ Byte = Ip6->Addr[Index];\r
\r
-**/\r
-UINT32\r
-EFIAPI\r
-NetGetUint32 (\r
- IN UINT8 *Buf\r
- )\r
-{\r
- UINT32 Value;\r
+ if (Byte == 0x0 || Byte == 0x1) {\r
+ return FALSE;\r
+ }\r
\r
- CopyMem (&Value, Buf, sizeof (UINT32));\r
- return NTOHL (Value);\r
+ return TRUE;\r
}\r
\r
-\r
/**\r
- Put a UINT32 to the byte stream. Convert it from host byte order\r
- to network byte order before putting.\r
+ Check whether the incoming Ipv6 address is the unspecified address or not.\r
+\r
+ ASSERT if Ip6 is NULL.\r
\r
- @param Buf The buffer to put the UINT32\r
- @param Data The data to put\r
+ @param[in] Ip6 - Ip6 address, in network order.\r
\r
- @return None\r
+ @retval TRUE - Yes, unspecified\r
+ @retval FALSE - No\r
\r
**/\r
-VOID\r
+BOOLEAN\r
EFIAPI\r
-NetPutUint32 (\r
- IN UINT8 *Buf,\r
- IN UINT32 Data\r
+NetIp6IsUnspecifiedAddr (\r
+ IN EFI_IPv6_ADDRESS *Ip6\r
)\r
{\r
- Data = HTONL (Data);\r
- CopyMem (Buf, &Data, sizeof (UINT32));\r
-}\r
+ UINT8 Index;\r
\r
+ ASSERT (Ip6 != NULL);\r
+\r
+ for (Index = 0; Index < 16; Index++) {\r
+ if (Ip6->Addr[Index] != 0) {\r
+ return FALSE;\r
+ }\r
+ }\r
+\r
+ return TRUE;\r
+}\r
\r
/**\r
- Remove the first entry on the list\r
+ Check whether the incoming Ipv6 address is a link-local address.\r
\r
- @param Head The list header\r
+ ASSERT if Ip6 is NULL.\r
\r
- @return The entry that is removed from the list, NULL if the list is empty.\r
+ @param[in] Ip6 - Ip6 address, in network order.\r
+\r
+ @retval TRUE - Yes, link-local address\r
+ @retval FALSE - No\r
\r
**/\r
-LIST_ENTRY *\r
+BOOLEAN\r
EFIAPI\r
-NetListRemoveHead (\r
- LIST_ENTRY *Head\r
+NetIp6IsLinkLocalAddr (\r
+ IN EFI_IPv6_ADDRESS *Ip6\r
)\r
{\r
- LIST_ENTRY *First;\r
+ UINT8 Index;\r
\r
- ASSERT (Head != NULL);\r
+ ASSERT (Ip6 != NULL);\r
\r
- if (IsListEmpty (Head)) {\r
- return NULL;\r
+ if (Ip6->Addr[0] != 0xFE) {\r
+ return FALSE;\r
}\r
\r
- First = Head->ForwardLink;\r
- Head->ForwardLink = First->ForwardLink;\r
- First->ForwardLink->BackLink = Head;\r
+ if (Ip6->Addr[1] != 0x80) {\r
+ return FALSE;\r
+ }\r
\r
- DEBUG_CODE (\r
- First->ForwardLink = (LIST_ENTRY *) NULL;\r
- First->BackLink = (LIST_ENTRY *) NULL;\r
- );\r
+ for (Index = 2; Index < 8; Index++) {\r
+ if (Ip6->Addr[Index] != 0) {\r
+ return FALSE;\r
+ }\r
+ }\r
\r
- return First;\r
+ return TRUE;\r
}\r
\r
-\r
/**\r
- Remove the last entry on the list\r
+ Check whether the Ipv6 address1 and address2 are on the connected network.\r
+\r
+ ASSERT if Ip1 or Ip2 is NULL.\r
+ ASSERT if PrefixLength exceeds or equals to IP6_PREFIX_MAX.\r
\r
- @param Head The list head\r
+ @param[in] Ip1 - Ip6 address1, in network order.\r
+ @param[in] Ip2 - Ip6 address2, in network order.\r
+ @param[in] PrefixLength - The prefix length of the checking net.\r
\r
- @return The entry that is removed from the list, NULL if the list is empty.\r
+ @retval TRUE - Yes, connected.\r
+ @retval FALSE - No.\r
\r
**/\r
-LIST_ENTRY *\r
+BOOLEAN\r
+EFIAPI\r
+NetIp6IsNetEqual (\r
+ EFI_IPv6_ADDRESS *Ip1,\r
+ EFI_IPv6_ADDRESS *Ip2,\r
+ UINT8 PrefixLength\r
+ )\r
+{\r
+ UINT8 Byte;\r
+ UINT8 Bit;\r
+ UINT8 Mask;\r
+\r
+ ASSERT ((Ip1 != NULL) && (Ip2 != NULL) && (PrefixLength < IP6_PREFIX_MAX));\r
+\r
+ if (PrefixLength == 0) {\r
+ return TRUE;\r
+ }\r
+\r
+ Byte = (UINT8) (PrefixLength / 8);\r
+ Bit = (UINT8) (PrefixLength % 8);\r
+\r
+ if (CompareMem (Ip1, Ip2, Byte) != 0) {\r
+ return FALSE;\r
+ }\r
+\r
+ if (Bit > 0) {\r
+ Mask = (UINT8) (0xFF << (8 - Bit));\r
+\r
+ ASSERT (Byte < 16);\r
+ if (Byte >= 16) {\r
+ return FALSE;\r
+ }\r
+ if ((Ip1->Addr[Byte] & Mask) != (Ip2->Addr[Byte] & Mask)) {\r
+ return FALSE;\r
+ }\r
+ }\r
+\r
+ return TRUE;\r
+}\r
+\r
+\r
+/**\r
+ Switches the endianess of an IPv6 address\r
+\r
+ ASSERT if Ip6 is NULL.\r
+\r
+ This function swaps the bytes in a 128-bit IPv6 address to switch the value\r
+ from little endian to big endian or vice versa. The byte swapped value is\r
+ returned.\r
+\r
+ @param Ip6 Points to an IPv6 address\r
+\r
+ @return The byte swapped IPv6 address.\r
+\r
+**/\r
+EFI_IPv6_ADDRESS *\r
+EFIAPI\r
+Ip6Swap128 (\r
+ EFI_IPv6_ADDRESS *Ip6\r
+ )\r
+{\r
+ UINT64 High;\r
+ UINT64 Low;\r
+\r
+ ASSERT (Ip6 != NULL);\r
+\r
+ CopyMem (&High, Ip6, sizeof (UINT64));\r
+ CopyMem (&Low, &Ip6->Addr[8], sizeof (UINT64));\r
+\r
+ High = SwapBytes64 (High);\r
+ Low = SwapBytes64 (Low);\r
+\r
+ CopyMem (Ip6, &Low, sizeof (UINT64));\r
+ CopyMem (&Ip6->Addr[8], &High, sizeof (UINT64));\r
+\r
+ return Ip6;\r
+}\r
+\r
+/**\r
+ Initialize a random seed using current time and monotonic count.\r
+\r
+ Get current time and monotonic count first. Then initialize a random seed\r
+ based on some basic mathematics operation on the hour, day, minute, second,\r
+ nanosecond and year of the current time and the monotonic count value.\r
+\r
+ @return The random seed initialized with current time.\r
+\r
+**/\r
+UINT32\r
+EFIAPI\r
+NetRandomInitSeed (\r
+ VOID\r
+ )\r
+{\r
+ EFI_TIME Time;\r
+ UINT32 Seed;\r
+ UINT64 MonotonicCount;\r
+\r
+ gRT->GetTime (&Time, NULL);\r
+ Seed = (Time.Hour << 24 | Time.Day << 16 | Time.Minute << 8 | Time.Second);\r
+ Seed ^= Time.Nanosecond;\r
+ Seed ^= Time.Year << 7;\r
+\r
+ gBS->GetNextMonotonicCount (&MonotonicCount);\r
+ Seed += (UINT32) MonotonicCount;\r
+\r
+ return Seed;\r
+}\r
+\r
+\r
+/**\r
+ Extract a UINT32 from a byte stream.\r
+\r
+ ASSERT if Buf is NULL.\r
+\r
+ Copy a UINT32 from a byte stream, then converts it from Network\r
+ byte order to host byte order. Use this function to avoid alignment error.\r
+\r
+ @param[in] Buf The buffer to extract the UINT32.\r
+\r
+ @return The UINT32 extracted.\r
+\r
+**/\r
+UINT32\r
+EFIAPI\r
+NetGetUint32 (\r
+ IN UINT8 *Buf\r
+ )\r
+{\r
+ UINT32 Value;\r
+\r
+ ASSERT (Buf != NULL);\r
+\r
+ CopyMem (&Value, Buf, sizeof (UINT32));\r
+ return NTOHL (Value);\r
+}\r
+\r
+\r
+/**\r
+ Put a UINT32 to the byte stream in network byte order.\r
+\r
+ ASSERT if Buf is NULL.\r
+\r
+ Converts a UINT32 from host byte order to network byte order. Then copy it to the\r
+ byte stream.\r
+\r
+ @param[in, out] Buf The buffer to put the UINT32.\r
+ @param[in] Data The data to be converted and put into the byte stream.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetPutUint32 (\r
+ IN OUT UINT8 *Buf,\r
+ IN UINT32 Data\r
+ )\r
+{\r
+ ASSERT (Buf != NULL);\r
+\r
+ Data = HTONL (Data);\r
+ CopyMem (Buf, &Data, sizeof (UINT32));\r
+}\r
+\r
+\r
+/**\r
+ Remove the first node entry on the list, and return the removed node entry.\r
+\r
+ Removes the first node Entry from a doubly linked list. It is up to the caller of\r
+ this function to release the memory used by the first node if that is required. On\r
+ exit, the removed node is returned.\r
+\r
+ If Head is NULL, then ASSERT().\r
+ If Head was not initialized, then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r
+ linked list including the head node is greater than or equal to PcdMaximumLinkedListLength,\r
+ then ASSERT().\r
+\r
+ @param[in, out] Head The list header.\r
+\r
+ @return The first node entry that is removed from the list, NULL if the list is empty.\r
+\r
+**/\r
+LIST_ENTRY *\r
+EFIAPI\r
+NetListRemoveHead (\r
+ IN OUT LIST_ENTRY *Head\r
+ )\r
+{\r
+ LIST_ENTRY *First;\r
+\r
+ ASSERT (Head != NULL);\r
+\r
+ if (IsListEmpty (Head)) {\r
+ return NULL;\r
+ }\r
+\r
+ First = Head->ForwardLink;\r
+ Head->ForwardLink = First->ForwardLink;\r
+ First->ForwardLink->BackLink = Head;\r
+\r
+ DEBUG_CODE (\r
+ First->ForwardLink = (LIST_ENTRY *) NULL;\r
+ First->BackLink = (LIST_ENTRY *) NULL;\r
+ );\r
+\r
+ return First;\r
+}\r
+\r
+\r
+/**\r
+ Remove the last node entry on the list and and return the removed node entry.\r
+\r
+ Removes the last node entry from a doubly linked list. It is up to the caller of\r
+ this function to release the memory used by the first node if that is required. On\r
+ exit, the removed node is returned.\r
+\r
+ If Head is NULL, then ASSERT().\r
+ If Head was not initialized, then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r
+ linked list including the head node is greater than or equal to PcdMaximumLinkedListLength,\r
+ then ASSERT().\r
+\r
+ @param[in, out] Head The list head.\r
+\r
+ @return The last node entry that is removed from the list, NULL if the list is empty.\r
+\r
+**/\r
+LIST_ENTRY *\r
EFIAPI\r
NetListRemoveTail (\r
- LIST_ENTRY *Head\r
+ IN OUT LIST_ENTRY *Head\r
)\r
{\r
LIST_ENTRY *Last;\r
\r
\r
/**\r
- Insert the NewEntry after the PrevEntry\r
+ Insert a new node entry after a designated node entry of a doubly linked list.\r
\r
- @param PrevEntry The previous entry to insert after\r
- @param NewEntry The new entry to insert\r
+ ASSERT if PrevEntry or NewEntry is NULL.\r
\r
- @return None\r
+ Inserts a new node entry donated by NewEntry after the node entry donated by PrevEntry\r
+ of the doubly linked list.\r
+\r
+ @param[in, out] PrevEntry The previous entry to insert after.\r
+ @param[in, out] NewEntry The new entry to insert.\r
\r
**/\r
VOID\r
EFIAPI\r
NetListInsertAfter (\r
- IN LIST_ENTRY *PrevEntry,\r
- IN LIST_ENTRY *NewEntry\r
+ IN OUT LIST_ENTRY *PrevEntry,\r
+ IN OUT LIST_ENTRY *NewEntry\r
)\r
{\r
+ ASSERT (PrevEntry != NULL && NewEntry != NULL);\r
+\r
NewEntry->BackLink = PrevEntry;\r
NewEntry->ForwardLink = PrevEntry->ForwardLink;\r
PrevEntry->ForwardLink->BackLink = NewEntry;\r
\r
\r
/**\r
- Insert the NewEntry before the PostEntry\r
+ Insert a new node entry before a designated node entry of a doubly linked list.\r
\r
- @param PostEntry The entry to insert before\r
- @param NewEntry The new entry to insert\r
+ ASSERT if PostEntry or NewEntry is NULL.\r
\r
- @return None\r
+ Inserts a new node entry donated by NewEntry after the node entry donated by PostEntry\r
+ of the doubly linked list.\r
+\r
+ @param[in, out] PostEntry The entry to insert before.\r
+ @param[in, out] NewEntry The new entry to insert.\r
\r
**/\r
VOID\r
EFIAPI\r
NetListInsertBefore (\r
- IN LIST_ENTRY *PostEntry,\r
- IN LIST_ENTRY *NewEntry\r
+ IN OUT LIST_ENTRY *PostEntry,\r
+ IN OUT LIST_ENTRY *NewEntry\r
)\r
{\r
+ ASSERT (PostEntry != NULL && NewEntry != NULL);\r
+\r
NewEntry->ForwardLink = PostEntry;\r
NewEntry->BackLink = PostEntry->BackLink;\r
PostEntry->BackLink->ForwardLink = NewEntry;\r
PostEntry->BackLink = NewEntry;\r
}\r
\r
+/**\r
+ Safe destroy nodes in a linked list, and return the length of the list after all possible operations finished.\r
+\r
+ Destroy network child instance list by list traversals is not safe due to graph dependencies between nodes.\r
+ This function performs a safe traversal to destroy these nodes by checking to see if the node being destroyed\r
+ has been removed from the list or not.\r
+ If it has been removed, then restart the traversal from the head.\r
+ If it hasn't been removed, then continue with the next node directly.\r
+ This function will end the iterate and return the CallBack's last return value if error happens,\r
+ or retrun EFI_SUCCESS if 2 complete passes are made with no changes in the number of children in the list.\r
+\r
+ @param[in] List The head of the list.\r
+ @param[in] CallBack Pointer to the callback function to destroy one node in the list.\r
+ @param[in] Context Pointer to the callback function's context: corresponds to the\r
+ parameter Context in NET_DESTROY_LINK_LIST_CALLBACK.\r
+ @param[out] ListLength The length of the link list if the function returns successfully.\r
+\r
+ @retval EFI_SUCCESS Two complete passes are made with no changes in the number of children.\r
+ @retval EFI_INVALID_PARAMETER The input parameter is invalid.\r
+ @retval Others Return the CallBack's last return value.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetDestroyLinkList (\r
+ IN LIST_ENTRY *List,\r
+ IN NET_DESTROY_LINK_LIST_CALLBACK CallBack,\r
+ IN VOID *Context, OPTIONAL\r
+ OUT UINTN *ListLength OPTIONAL\r
+ )\r
+{\r
+ UINTN PreviousLength;\r
+ LIST_ENTRY *Entry;\r
+ LIST_ENTRY *Ptr;\r
+ UINTN Length;\r
+ EFI_STATUS Status;\r
+\r
+ if (List == NULL || CallBack == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ Length = 0;\r
+ do {\r
+ PreviousLength = Length;\r
+ Entry = GetFirstNode (List);\r
+ while (!IsNull (List, Entry)) {\r
+ Status = CallBack (Entry, Context);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ //\r
+ // Walk through the list to see whether the Entry has been removed or not.\r
+ // If the Entry still exists, just try to destroy the next one.\r
+ // If not, go back to the start point to iterate the list again.\r
+ //\r
+ for (Ptr = List->ForwardLink; Ptr != List; Ptr = Ptr->ForwardLink) {\r
+ if (Ptr == Entry) {\r
+ break;\r
+ }\r
+ }\r
+ if (Ptr == Entry) {\r
+ Entry = GetNextNode (List, Entry);\r
+ } else {\r
+ Entry = GetFirstNode (List);\r
+ }\r
+ }\r
+ for (Length = 0, Ptr = List->ForwardLink; Ptr != List; Length++, Ptr = Ptr->ForwardLink);\r
+ } while (Length != PreviousLength);\r
+\r
+ if (ListLength != NULL) {\r
+ *ListLength = Length;\r
+ }\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ This function checks the input Handle to see if it's one of these handles in ChildHandleBuffer.\r
+\r
+ @param[in] Handle Handle to be checked.\r
+ @param[in] NumberOfChildren Number of Handles in ChildHandleBuffer.\r
+ @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL\r
+ if NumberOfChildren is 0.\r
+\r
+ @retval TRUE Found the input Handle in ChildHandleBuffer.\r
+ @retval FALSE Can't find the input Handle in ChildHandleBuffer.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+NetIsInHandleBuffer (\r
+ IN EFI_HANDLE Handle,\r
+ IN UINTN NumberOfChildren,\r
+ IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r
+ )\r
+{\r
+ UINTN Index;\r
+\r
+ if (NumberOfChildren == 0 || ChildHandleBuffer == NULL) {\r
+ return FALSE;\r
+ }\r
+\r
+ for (Index = 0; Index < NumberOfChildren; Index++) {\r
+ if (Handle == ChildHandleBuffer[Index]) {\r
+ return TRUE;\r
+ }\r
+ }\r
+\r
+ return FALSE;\r
+}\r
+\r
\r
/**\r
Initialize the netmap. Netmap is a reposity to keep the <Key, Value> pairs.\r
\r
- @param Map The netmap to initialize\r
+ Initialize the forward and backward links of two head nodes donated by Map->Used\r
+ and Map->Recycled of two doubly linked lists.\r
+ Initializes the count of the <Key, Value> pairs in the netmap to zero.\r
+\r
+ If Map is NULL, then ASSERT().\r
+ If the address of Map->Used is NULL, then ASSERT().\r
+ If the address of Map->Recycled is NULl, then ASSERT().\r
\r
- @return None\r
+ @param[in, out] Map The netmap to initialize.\r
\r
**/\r
VOID\r
EFIAPI\r
NetMapInit (\r
- IN NET_MAP *Map\r
+ IN OUT NET_MAP *Map\r
)\r
{\r
ASSERT (Map != NULL);\r
/**\r
To clean up the netmap, that is, release allocated memories.\r
\r
- @param Map The netmap to clean up.\r
+ Removes all nodes of the Used doubly linked list and free memory of all related netmap items.\r
+ Removes all nodes of the Recycled doubly linked list and free memory of all related netmap items.\r
+ The number of the <Key, Value> pairs in the netmap is set to be zero.\r
+\r
+ If Map is NULL, then ASSERT().\r
\r
- @return None\r
+ @param[in, out] Map The netmap to clean up.\r
\r
**/\r
VOID\r
EFIAPI\r
NetMapClean (\r
- IN NET_MAP *Map\r
+ IN OUT NET_MAP *Map\r
)\r
{\r
NET_MAP_ITEM *Item;\r
\r
\r
/**\r
- Test whether the netmap is empty\r
+ Test whether the netmap is empty and return true if it is.\r
+\r
+ If the number of the <Key, Value> pairs in the netmap is zero, return TRUE.\r
\r
- @param Map The net map to test\r
+ If Map is NULL, then ASSERT().\r
+\r
+ @param[in] Map The net map to test.\r
\r
@return TRUE if the netmap is empty, otherwise FALSE.\r
\r
/**\r
Return the number of the <Key, Value> pairs in the netmap.\r
\r
- @param Map The netmap to get the entry number\r
+ If Map is NULL, then ASSERT().\r
+\r
+ @param[in] Map The netmap to get the entry number.\r
\r
@return The entry number in the netmap.\r
\r
IN NET_MAP *Map\r
)\r
{\r
+ ASSERT (Map != NULL);\r
return Map->Count;\r
}\r
\r
\r
/**\r
- Allocate an item for the netmap. It will try to allocate\r
- a batch of items and return one.\r
+ Return one allocated item.\r
+\r
+ If the Recycled doubly linked list of the netmap is empty, it will try to allocate\r
+ a batch of items if there are enough resources and add corresponding nodes to the begining\r
+ of the Recycled doubly linked list of the netmap. Otherwise, it will directly remove\r
+ the fist node entry of the Recycled doubly linked list and return the corresponding item.\r
\r
- @param Map The netmap to allocate item for\r
+ If Map is NULL, then ASSERT().\r
\r
- @return The allocated item or NULL\r
+ @param[in, out] Map The netmap to allocate item for.\r
+\r
+ @return The allocated item. If NULL, the\r
+ allocation failed due to resource limit.\r
\r
**/\r
-STATIC\r
NET_MAP_ITEM *\r
NetMapAllocItem (\r
- IN NET_MAP *Map\r
+ IN OUT NET_MAP *Map\r
)\r
{\r
NET_MAP_ITEM *Item;\r
/**\r
Allocate an item to save the <Key, Value> pair to the head of the netmap.\r
\r
- @param Map The netmap to insert into\r
- @param Key The user's key\r
- @param Value The user's value for the key\r
+ Allocate an item to save the <Key, Value> pair and add corresponding node entry\r
+ to the beginning of the Used doubly linked list. The number of the <Key, Value>\r
+ pairs in the netmap increase by 1.\r
+\r
+ If Map is NULL, then ASSERT().\r
+ If Key is NULL, then ASSERT().\r
+\r
+ @param[in, out] Map The netmap to insert into.\r
+ @param[in] Key The user's key.\r
+ @param[in] Value The user's value for the key.\r
\r
- @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item\r
- @retval EFI_SUCCESS The item is inserted to the head\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item.\r
+ @retval EFI_SUCCESS The item is inserted to the head.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
NetMapInsertHead (\r
- IN NET_MAP *Map,\r
+ IN OUT NET_MAP *Map,\r
IN VOID *Key,\r
IN VOID *Value OPTIONAL\r
)\r
{\r
NET_MAP_ITEM *Item;\r
\r
- ASSERT (Map != NULL);\r
+ ASSERT (Map != NULL && Key != NULL);\r
\r
Item = NetMapAllocItem (Map);\r
\r
/**\r
Allocate an item to save the <Key, Value> pair to the tail of the netmap.\r
\r
- @param Map The netmap to insert into\r
- @param Key The user's key\r
- @param Value The user's value for the key\r
+ Allocate an item to save the <Key, Value> pair and add corresponding node entry\r
+ to the tail of the Used doubly linked list. The number of the <Key, Value>\r
+ pairs in the netmap increase by 1.\r
+\r
+ If Map is NULL, then ASSERT().\r
+ If Key is NULL, then ASSERT().\r
+\r
+ @param[in, out] Map The netmap to insert into.\r
+ @param[in] Key The user's key.\r
+ @param[in] Value The user's value for the key.\r
\r
- @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item\r
- @retval EFI_SUCCESS The item is inserted to the tail\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item.\r
+ @retval EFI_SUCCESS The item is inserted to the tail.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
NetMapInsertTail (\r
- IN NET_MAP *Map,\r
+ IN OUT NET_MAP *Map,\r
IN VOID *Key,\r
IN VOID *Value OPTIONAL\r
)\r
{\r
NET_MAP_ITEM *Item;\r
\r
- ASSERT (Map != NULL);\r
+ ASSERT (Map != NULL && Key != NULL);\r
\r
Item = NetMapAllocItem (Map);\r
\r
\r
\r
/**\r
- Check whther the item is in the Map\r
+ Check whether the item is in the Map and return TRUE if it is.\r
\r
- @param Map The netmap to search within\r
- @param Item The item to search\r
+ If Map is NULL, then ASSERT().\r
+ If Item is NULL, then ASSERT().\r
+\r
+ @param[in] Map The netmap to search within.\r
+ @param[in] Item The item to search.\r
\r
@return TRUE if the item is in the netmap, otherwise FALSE.\r
\r
**/\r
-STATIC\r
BOOLEAN\r
NetItemInMap (\r
IN NET_MAP *Map,\r
{\r
LIST_ENTRY *ListEntry;\r
\r
+ ASSERT (Map != NULL && Item != NULL);\r
+\r
NET_LIST_FOR_EACH (ListEntry, &Map->Used) {\r
if (ListEntry == &Item->Link) {\r
return TRUE;\r
\r
\r
/**\r
- Find the key in the netmap\r
+ Find the key in the netmap and returns the point to the item contains the Key.\r
\r
- @param Map The netmap to search within\r
- @param Key The key to search\r
+ Iterate the Used doubly linked list of the netmap to get every item. Compare the key of every\r
+ item with the key to search. It returns the point to the item contains the Key if found.\r
+\r
+ If Map is NULL, then ASSERT().\r
+ If Key is NULL, then ASSERT().\r
+\r
+ @param[in] Map The netmap to search within.\r
+ @param[in] Key The key to search.\r
\r
@return The point to the item contains the Key, or NULL if Key isn't in the map.\r
\r
LIST_ENTRY *Entry;\r
NET_MAP_ITEM *Item;\r
\r
- ASSERT (Map != NULL);\r
+ ASSERT (Map != NULL && Key != NULL);\r
\r
NET_LIST_FOR_EACH (Entry, &Map->Used) {\r
Item = NET_LIST_USER_STRUCT (Entry, NET_MAP_ITEM, Link);\r
\r
\r
/**\r
- Remove the item from the netmap\r
+ Remove the node entry of the item from the netmap and return the key of the removed item.\r
+\r
+ Remove the node entry of the item from the Used doubly linked list of the netmap.\r
+ The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node\r
+ entry of the item to the Recycled doubly linked list of the netmap. If Value is not NULL,\r
+ Value will point to the value of the item. It returns the key of the removed item.\r
\r
- @param Map The netmap to remove the item from\r
- @param Item The item to remove\r
- @param Value The variable to receive the value if not NULL\r
+ If Map is NULL, then ASSERT().\r
+ If Item is NULL, then ASSERT().\r
+ if item in not in the netmap, then ASSERT().\r
\r
- @return The key of the removed item.\r
+ @param[in, out] Map The netmap to remove the item from.\r
+ @param[in, out] Item The item to remove.\r
+ @param[out] Value The variable to receive the value if not NULL.\r
+\r
+ @return The key of the removed item.\r
\r
**/\r
VOID *\r
EFIAPI\r
NetMapRemoveItem (\r
- IN NET_MAP *Map,\r
- IN NET_MAP_ITEM *Item,\r
- OUT VOID **Value OPTIONAL\r
+ IN OUT NET_MAP *Map,\r
+ IN OUT NET_MAP_ITEM *Item,\r
+ OUT VOID **Value OPTIONAL\r
)\r
{\r
ASSERT ((Map != NULL) && (Item != NULL));\r
\r
\r
/**\r
- Remove the first entry on the netmap\r
+ Remove the first node entry on the netmap and return the key of the removed item.\r
+\r
+ Remove the first node entry from the Used doubly linked list of the netmap.\r
+ The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node\r
+ entry to the Recycled doubly linked list of the netmap. If parameter Value is not NULL,\r
+ parameter Value will point to the value of the item. It returns the key of the removed item.\r
\r
- @param Map The netmap to remove the head from\r
- @param Value The variable to receive the value if not NULL\r
+ If Map is NULL, then ASSERT().\r
+ If the Used doubly linked list is empty, then ASSERT().\r
\r
- @return The key of the item removed\r
+ @param[in, out] Map The netmap to remove the head from.\r
+ @param[out] Value The variable to receive the value if not NULL.\r
+\r
+ @return The key of the item removed.\r
\r
**/\r
VOID *\r
EFIAPI\r
NetMapRemoveHead (\r
- IN NET_MAP *Map,\r
+ IN OUT NET_MAP *Map,\r
OUT VOID **Value OPTIONAL\r
)\r
{\r
\r
\r
/**\r
- Remove the last entry on the netmap\r
+ Remove the last node entry on the netmap and return the key of the removed item.\r
\r
- @param Map The netmap to remove the tail from\r
- @param Value The variable to receive the value if not NULL\r
+ Remove the last node entry from the Used doubly linked list of the netmap.\r
+ The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node\r
+ entry to the Recycled doubly linked list of the netmap. If parameter Value is not NULL,\r
+ parameter Value will point to the value of the item. It returns the key of the removed item.\r
\r
- @return The key of the item removed\r
+ If Map is NULL, then ASSERT().\r
+ If the Used doubly linked list is empty, then ASSERT().\r
+\r
+ @param[in, out] Map The netmap to remove the tail from.\r
+ @param[out] Value The variable to receive the value if not NULL.\r
+\r
+ @return The key of the item removed.\r
\r
**/\r
VOID *\r
EFIAPI\r
NetMapRemoveTail (\r
- IN NET_MAP *Map,\r
+ IN OUT NET_MAP *Map,\r
OUT VOID **Value OPTIONAL\r
)\r
{\r
\r
\r
/**\r
- Iterate through the netmap and call CallBack for each item. It will\r
- contiue the traverse if CallBack returns EFI_SUCCESS, otherwise, break\r
- from the loop. It returns the CallBack's last return value. This\r
- function is delete safe for the current item.\r
+ Iterate through the netmap and call CallBack for each item.\r
+\r
+ It will continue the traverse if CallBack returns EFI_SUCCESS, otherwise, break\r
+ from the loop. It returns the CallBack's last return value. This function is\r
+ delete safe for the current item.\r
\r
- @param Map The Map to iterate through\r
- @param CallBack The callback function to call for each item.\r
- @param Arg The opaque parameter to the callback\r
+ If Map is NULL, then ASSERT().\r
+ If CallBack is NULL, then ASSERT().\r
\r
- @return It returns the CallBack's last return value.\r
+ @param[in] Map The Map to iterate through.\r
+ @param[in] CallBack The callback function to call for each item.\r
+ @param[in] Arg The opaque parameter to the callback.\r
+\r
+ @retval EFI_SUCCESS There is no item in the netmap or CallBack for each item\r
+ return EFI_SUCCESS.\r
+ @retval Others It returns the CallBack's last return value.\r
\r
**/\r
EFI_STATUS\r
NetMapIterate (\r
IN NET_MAP *Map,\r
IN NET_MAP_CALLBACK CallBack,\r
- IN VOID *Arg\r
+ IN VOID *Arg OPTIONAL\r
)\r
{\r
\r
LIST_ENTRY *Entry;\r
LIST_ENTRY *Next;\r
LIST_ENTRY *Head;\r
- NET_MAP_ITEM *Item;\r
- EFI_STATUS Result;\r
+ NET_MAP_ITEM *Item;\r
+ EFI_STATUS Result;\r
\r
ASSERT ((Map != NULL) && (CallBack != NULL));\r
\r
/**\r
This is the default unload handle for all the network drivers.\r
\r
- @param ImageHandle The drivers' driver image.\r
+ Disconnect the driver specified by ImageHandle from all the devices in the handle database.\r
+ Uninstall all the protocols installed in the driver entry point.\r
+\r
+ @param[in] ImageHandle The drivers' driver image.\r
\r
@retval EFI_SUCCESS The image is unloaded.\r
@retval Others Failed to unload the image.\r
EFI_HANDLE *DeviceHandleBuffer;\r
UINTN DeviceHandleCount;\r
UINTN Index;\r
+ UINTN Index2;\r
EFI_DRIVER_BINDING_PROTOCOL *DriverBinding;\r
EFI_COMPONENT_NAME_PROTOCOL *ComponentName;\r
EFI_COMPONENT_NAME2_PROTOCOL *ComponentName2;\r
return Status;\r
}\r
\r
- //\r
- // Disconnect the driver specified by ImageHandle from all\r
- // the devices in the handle database.\r
- //\r
- for (Index = 0; Index < DeviceHandleCount; Index++) {\r
- Status = gBS->DisconnectController (\r
- DeviceHandleBuffer[Index],\r
- ImageHandle,\r
- NULL\r
- );\r
- }\r
-\r
- //\r
- // Uninstall all the protocols installed in the driver entry point\r
- //\r
for (Index = 0; Index < DeviceHandleCount; Index++) {\r
Status = gBS->HandleProtocol (\r
DeviceHandleBuffer[Index],\r
&gEfiDriverBindingProtocolGuid,\r
(VOID **) &DriverBinding\r
);\r
-\r
if (EFI_ERROR (Status)) {\r
continue;\r
}\r
continue;\r
}\r
\r
+ //\r
+ // Disconnect the driver specified by ImageHandle from all\r
+ // the devices in the handle database.\r
+ //\r
+ for (Index2 = 0; Index2 < DeviceHandleCount; Index2++) {\r
+ Status = gBS->DisconnectController (\r
+ DeviceHandleBuffer[Index2],\r
+ DriverBinding->DriverBindingHandle,\r
+ NULL\r
+ );\r
+ }\r
+\r
+ //\r
+ // Uninstall all the protocols installed in the driver entry point\r
+ //\r
gBS->UninstallProtocolInterface (\r
- ImageHandle,\r
+ DriverBinding->DriverBindingHandle,\r
&gEfiDriverBindingProtocolGuid,\r
DriverBinding\r
);\r
+\r
Status = gBS->HandleProtocol (\r
DeviceHandleBuffer[Index],\r
&gEfiComponentNameProtocolGuid,\r
);\r
if (!EFI_ERROR (Status)) {\r
gBS->UninstallProtocolInterface (\r
- ImageHandle,\r
+ DriverBinding->DriverBindingHandle,\r
&gEfiComponentNameProtocolGuid,\r
ComponentName\r
);\r
);\r
if (!EFI_ERROR (Status)) {\r
gBS->UninstallProtocolInterface (\r
- ImageHandle,\r
+ DriverBinding->DriverBindingHandle,\r
&gEfiComponentName2ProtocolGuid,\r
ComponentName2\r
);\r
/**\r
Create a child of the service that is identified by ServiceBindingGuid.\r
\r
- @param Controller The controller which has the service installed.\r
- @param Image The image handle used to open service.\r
- @param ServiceBindingGuid The service's Guid.\r
- @param ChildHandle The handle to receive the create child\r
+ Get the ServiceBinding Protocol first, then use it to create a child.\r
+\r
+ If ServiceBindingGuid is NULL, then ASSERT().\r
+ If ChildHandle is NULL, then ASSERT().\r
+\r
+ @param[in] Controller The controller which has the service installed.\r
+ @param[in] Image The image handle used to open service.\r
+ @param[in] ServiceBindingGuid The service's Guid.\r
+ @param[in, out] ChildHandle The handle to receive the create child.\r
\r
@retval EFI_SUCCESS The child is successfully created.\r
@retval Others Failed to create the child.\r
IN EFI_HANDLE Controller,\r
IN EFI_HANDLE Image,\r
IN EFI_GUID *ServiceBindingGuid,\r
- OUT EFI_HANDLE *ChildHandle\r
+ IN OUT EFI_HANDLE *ChildHandle\r
)\r
{\r
EFI_STATUS Status;\r
\r
\r
/**\r
- Destory a child of the service that is identified by ServiceBindingGuid.\r
+ Destroy a child of the service that is identified by ServiceBindingGuid.\r
+\r
+ Get the ServiceBinding Protocol first, then use it to destroy a child.\r
+\r
+ If ServiceBindingGuid is NULL, then ASSERT().\r
\r
- @param Controller The controller which has the service installed.\r
- @param Image The image handle used to open service.\r
- @param ServiceBindingGuid The service's Guid.\r
- @param ChildHandle The child to destory\r
+ @param[in] Controller The controller which has the service installed.\r
+ @param[in] Image The image handle used to open service.\r
+ @param[in] ServiceBindingGuid The service's Guid.\r
+ @param[in] ChildHandle The child to destroy.\r
\r
- @retval EFI_SUCCESS The child is successfully destoried.\r
- @retval Others Failed to destory the child.\r
+ @retval EFI_SUCCESS The child is successfully destroyed.\r
+ @retval Others Failed to destroy the child.\r
\r
**/\r
EFI_STATUS\r
}\r
\r
//\r
- // destory the child\r
+ // destroy the child\r
//\r
Status = Service->DestroyChild (Service, ChildHandle);\r
return Status;\r
}\r
\r
-\r
/**\r
- Convert the mac address of the simple network protocol installed on\r
- SnpHandle to a unicode string. Callers are responsible for freeing the\r
- string storage.\r
+ Get handle with Simple Network Protocol installed on it.\r
+\r
+ There should be MNP Service Binding Protocol installed on the input ServiceHandle.\r
+ If Simple Network Protocol is already installed on the ServiceHandle, the\r
+ ServiceHandle will be returned. If SNP is not installed on the ServiceHandle,\r
+ try to find its parent handle with SNP installed.\r
\r
- @param SnpHandle The handle where the simple network protocol is\r
+ @param[in] ServiceHandle The handle where network service binding protocols are\r
installed on.\r
- @param ImageHandle The image handle used to act as the agent handle to\r
- get the simple network protocol.\r
- @param MacString The pointer to store the address of the string\r
- representation of the mac address.\r
+ @param[out] Snp The pointer to store the address of the SNP instance.\r
+ This is an optional parameter that may be NULL.\r
\r
- @retval EFI_OUT_OF_RESOURCES There are not enough memory resource.\r
- @retval other Failed to open the simple network protocol.\r
+ @return The SNP handle, or NULL if not found.\r
\r
**/\r
-EFI_STATUS\r
+EFI_HANDLE\r
EFIAPI\r
-NetLibGetMacString (\r
- IN EFI_HANDLE SnpHandle,\r
- IN EFI_HANDLE ImageHandle,\r
- IN OUT CHAR16 **MacString\r
+NetLibGetSnpHandle (\r
+ IN EFI_HANDLE ServiceHandle,\r
+ OUT EFI_SIMPLE_NETWORK_PROTOCOL **Snp OPTIONAL\r
)\r
{\r
EFI_STATUS Status;\r
- EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r
- EFI_SIMPLE_NETWORK_MODE *Mode;\r
- CHAR16 *MacAddress;\r
- UINTN Index;\r
+ EFI_SIMPLE_NETWORK_PROTOCOL *SnpInstance;\r
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r
+ EFI_HANDLE SnpHandle;\r
\r
- *MacString = NULL;\r
+ //\r
+ // Try to open SNP from ServiceHandle\r
+ //\r
+ SnpInstance = NULL;\r
+ Status = gBS->HandleProtocol (ServiceHandle, &gEfiSimpleNetworkProtocolGuid, (VOID **) &SnpInstance);\r
+ if (!EFI_ERROR (Status)) {\r
+ if (Snp != NULL) {\r
+ *Snp = SnpInstance;\r
+ }\r
+ return ServiceHandle;\r
+ }\r
\r
//\r
- // Get the Simple Network protocol from the SnpHandle.\r
+ // Failed to open SNP, try to get SNP handle by LocateDevicePath()\r
//\r
- Status = gBS->OpenProtocol (\r
- SnpHandle,\r
- &gEfiSimpleNetworkProtocolGuid,\r
- (VOID **) &Snp,\r
- ImageHandle,\r
- SnpHandle,\r
- EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
- );\r
+ DevicePath = DevicePathFromHandle (ServiceHandle);\r
+ if (DevicePath == NULL) {\r
+ return NULL;\r
+ }\r
+\r
+ SnpHandle = NULL;\r
+ Status = gBS->LocateDevicePath (&gEfiSimpleNetworkProtocolGuid, &DevicePath, &SnpHandle);\r
if (EFI_ERROR (Status)) {\r
- return Status;\r
+ //\r
+ // Failed to find SNP handle\r
+ //\r
+ return NULL;\r
+ }\r
+\r
+ Status = gBS->HandleProtocol (SnpHandle, &gEfiSimpleNetworkProtocolGuid, (VOID **) &SnpInstance);\r
+ if (!EFI_ERROR (Status)) {\r
+ if (Snp != NULL) {\r
+ *Snp = SnpInstance;\r
+ }\r
+ return SnpHandle;\r
+ }\r
+\r
+ return NULL;\r
+}\r
+\r
+/**\r
+ Retrieve VLAN ID of a VLAN device handle.\r
+\r
+ Search VLAN device path node in Device Path of specified ServiceHandle and\r
+ return its VLAN ID. If no VLAN device path node found, then this ServiceHandle\r
+ is not a VLAN device handle, and 0 will be returned.\r
+\r
+ @param[in] ServiceHandle The handle where network service binding protocols are\r
+ installed on.\r
+\r
+ @return VLAN ID of the device handle, or 0 if not a VLAN device.\r
+\r
+**/\r
+UINT16\r
+EFIAPI\r
+NetLibGetVlanId (\r
+ IN EFI_HANDLE ServiceHandle\r
+ )\r
+{\r
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r
+ EFI_DEVICE_PATH_PROTOCOL *Node;\r
+\r
+ DevicePath = DevicePathFromHandle (ServiceHandle);\r
+ if (DevicePath == NULL) {\r
+ return 0;\r
+ }\r
+\r
+ Node = DevicePath;\r
+ while (!IsDevicePathEnd (Node)) {\r
+ if (Node->Type == MESSAGING_DEVICE_PATH && Node->SubType == MSG_VLAN_DP) {\r
+ return ((VLAN_DEVICE_PATH *) Node)->VlanId;\r
+ }\r
+ Node = NextDevicePathNode (Node);\r
+ }\r
+\r
+ return 0;\r
+}\r
+\r
+/**\r
+ Find VLAN device handle with specified VLAN ID.\r
+\r
+ The VLAN child device handle is created by VLAN Config Protocol on ControllerHandle.\r
+ This function will append VLAN device path node to the parent device path,\r
+ and then use LocateDevicePath() to find the correct VLAN device handle.\r
+\r
+ @param[in] ControllerHandle The handle where network service binding protocols are\r
+ installed on.\r
+ @param[in] VlanId The configured VLAN ID for the VLAN device.\r
+\r
+ @return The VLAN device handle, or NULL if not found.\r
+\r
+**/\r
+EFI_HANDLE\r
+EFIAPI\r
+NetLibGetVlanHandle (\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN UINT16 VlanId\r
+ )\r
+{\r
+ EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r
+ EFI_DEVICE_PATH_PROTOCOL *VlanDevicePath;\r
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r
+ VLAN_DEVICE_PATH VlanNode;\r
+ EFI_HANDLE Handle;\r
+\r
+ ParentDevicePath = DevicePathFromHandle (ControllerHandle);\r
+ if (ParentDevicePath == NULL) {\r
+ return NULL;\r
+ }\r
+\r
+ //\r
+ // Construct VLAN device path\r
+ //\r
+ CopyMem (&VlanNode, &mNetVlanDevicePathTemplate, sizeof (VLAN_DEVICE_PATH));\r
+ VlanNode.VlanId = VlanId;\r
+ VlanDevicePath = AppendDevicePathNode (\r
+ ParentDevicePath,\r
+ (EFI_DEVICE_PATH_PROTOCOL *) &VlanNode\r
+ );\r
+ if (VlanDevicePath == NULL) {\r
+ return NULL;\r
+ }\r
+\r
+ //\r
+ // Find VLAN device handle\r
+ //\r
+ Handle = NULL;\r
+ DevicePath = VlanDevicePath;\r
+ gBS->LocateDevicePath (\r
+ &gEfiDevicePathProtocolGuid,\r
+ &DevicePath,\r
+ &Handle\r
+ );\r
+ if (!IsDevicePathEnd (DevicePath)) {\r
+ //\r
+ // Device path is not exactly match\r
+ //\r
+ Handle = NULL;\r
+ }\r
+\r
+ FreePool (VlanDevicePath);\r
+ return Handle;\r
+}\r
+\r
+/**\r
+ Get MAC address associated with the network service handle.\r
+\r
+ If MacAddress is NULL, then ASSERT().\r
+ If AddressSize is NULL, then ASSERT().\r
+\r
+ There should be MNP Service Binding Protocol installed on the input ServiceHandle.\r
+ If SNP is installed on the ServiceHandle or its parent handle, MAC address will\r
+ be retrieved from SNP. If no SNP found, try to get SNP mode data use MNP.\r
+\r
+ @param[in] ServiceHandle The handle where network service binding protocols are\r
+ installed on.\r
+ @param[out] MacAddress The pointer to store the returned MAC address.\r
+ @param[out] AddressSize The length of returned MAC address.\r
+\r
+ @retval EFI_SUCCESS MAC address is returned successfully.\r
+ @retval Others Failed to get SNP mode data.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibGetMacAddress (\r
+ IN EFI_HANDLE ServiceHandle,\r
+ OUT EFI_MAC_ADDRESS *MacAddress,\r
+ OUT UINTN *AddressSize\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r
+ EFI_SIMPLE_NETWORK_MODE *SnpMode;\r
+ EFI_SIMPLE_NETWORK_MODE SnpModeData;\r
+ EFI_MANAGED_NETWORK_PROTOCOL *Mnp;\r
+ EFI_SERVICE_BINDING_PROTOCOL *MnpSb;\r
+ EFI_HANDLE *SnpHandle;\r
+ EFI_HANDLE MnpChildHandle;\r
+\r
+ ASSERT (MacAddress != NULL);\r
+ ASSERT (AddressSize != NULL);\r
+\r
+ //\r
+ // Try to get SNP handle\r
+ //\r
+ Snp = NULL;\r
+ SnpHandle = NetLibGetSnpHandle (ServiceHandle, &Snp);\r
+ if (SnpHandle != NULL) {\r
+ //\r
+ // SNP found, use it directly\r
+ //\r
+ SnpMode = Snp->Mode;\r
+ } else {\r
+ //\r
+ // Failed to get SNP handle, try to get MAC address from MNP\r
+ //\r
+ MnpChildHandle = NULL;\r
+ Status = gBS->HandleProtocol (\r
+ ServiceHandle,\r
+ &gEfiManagedNetworkServiceBindingProtocolGuid,\r
+ (VOID **) &MnpSb\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Create a MNP child\r
+ //\r
+ Status = MnpSb->CreateChild (MnpSb, &MnpChildHandle);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Open MNP protocol\r
+ //\r
+ Status = gBS->HandleProtocol (\r
+ MnpChildHandle,\r
+ &gEfiManagedNetworkProtocolGuid,\r
+ (VOID **) &Mnp\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ MnpSb->DestroyChild (MnpSb, MnpChildHandle);\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Try to get SNP mode from MNP\r
+ //\r
+ Status = Mnp->GetModeData (Mnp, NULL, &SnpModeData);\r
+ if (EFI_ERROR (Status) && (Status != EFI_NOT_STARTED)) {\r
+ MnpSb->DestroyChild (MnpSb, MnpChildHandle);\r
+ return Status;\r
+ }\r
+ SnpMode = &SnpModeData;\r
+\r
+ //\r
+ // Destroy the MNP child\r
+ //\r
+ MnpSb->DestroyChild (MnpSb, MnpChildHandle);\r
}\r
\r
- Mode = Snp->Mode;\r
+ *AddressSize = SnpMode->HwAddressSize;\r
+ CopyMem (MacAddress->Addr, SnpMode->CurrentAddress.Addr, SnpMode->HwAddressSize);\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Convert MAC address of the NIC associated with specified Service Binding Handle\r
+ to a unicode string. Callers are responsible for freeing the string storage.\r
+\r
+ If MacString is NULL, then ASSERT().\r
+\r
+ Locate simple network protocol associated with the Service Binding Handle and\r
+ get the mac address from SNP. Then convert the mac address into a unicode\r
+ string. It takes 2 unicode characters to represent a 1 byte binary buffer.\r
+ Plus one unicode character for the null-terminator.\r
+\r
+ @param[in] ServiceHandle The handle where network service binding protocol is\r
+ installed on.\r
+ @param[in] ImageHandle The image handle used to act as the agent handle to\r
+ get the simple network protocol. This parameter is\r
+ optional and may be NULL.\r
+ @param[out] MacString The pointer to store the address of the string\r
+ representation of the mac address.\r
+\r
+ @retval EFI_SUCCESS Convert the mac address a unicode string successfully.\r
+ @retval EFI_OUT_OF_RESOURCES There are not enough memory resource.\r
+ @retval Others Failed to open the simple network protocol.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibGetMacString (\r
+ IN EFI_HANDLE ServiceHandle,\r
+ IN EFI_HANDLE ImageHandle, OPTIONAL\r
+ OUT CHAR16 **MacString\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_MAC_ADDRESS MacAddress;\r
+ UINT8 *HwAddress;\r
+ UINTN HwAddressSize;\r
+ UINT16 VlanId;\r
+ CHAR16 *String;\r
+ UINTN Index;\r
+ UINTN BufferSize;\r
+\r
+ ASSERT (MacString != NULL);\r
+\r
+ //\r
+ // Get MAC address of the network device\r
+ //\r
+ Status = NetLibGetMacAddress (ServiceHandle, &MacAddress, &HwAddressSize);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
\r
//\r
// It takes 2 unicode characters to represent a 1 byte binary buffer.\r
+ // If VLAN is configured, it will need extra 5 characters like "\0005".\r
// Plus one unicode character for the null-terminator.\r
//\r
- MacAddress = AllocatePool ((2 * Mode->HwAddressSize + 1) * sizeof (CHAR16));\r
- if (MacAddress == NULL) {\r
+ BufferSize = (2 * HwAddressSize + 5 + 1) * sizeof (CHAR16);\r
+ String = AllocateZeroPool (BufferSize);\r
+ if (String == NULL) {\r
return EFI_OUT_OF_RESOURCES;\r
}\r
+ *MacString = String;\r
\r
//\r
- // Convert the mac address into a unicode string.\r
+ // Convert the MAC address into a unicode string.\r
//\r
- for (Index = 0; Index < Mode->HwAddressSize; Index++) {\r
- MacAddress[Index * 2] = NibbleToHexChar ((UINT8) (Mode->CurrentAddress.Addr[Index] >> 4));\r
- MacAddress[Index * 2 + 1] = NibbleToHexChar (Mode->CurrentAddress.Addr[Index]);\r
+ HwAddress = &MacAddress.Addr[0];\r
+ for (Index = 0; Index < HwAddressSize; Index++) {\r
+ UnicodeValueToStringS (\r
+ String,\r
+ BufferSize - ((UINTN)String - (UINTN)*MacString),\r
+ PREFIX_ZERO | RADIX_HEX,\r
+ *(HwAddress++),\r
+ 2\r
+ );\r
+ String += StrnLenS (String, (BufferSize - ((UINTN)String - (UINTN)*MacString)) / sizeof (CHAR16));\r
}\r
\r
- MacAddress[Mode->HwAddressSize * 2] = L'\0';\r
+ //\r
+ // Append VLAN ID if any\r
+ //\r
+ VlanId = NetLibGetVlanId (ServiceHandle);\r
+ if (VlanId != 0) {\r
+ *String++ = L'\\';\r
+ UnicodeValueToStringS (\r
+ String,\r
+ BufferSize - ((UINTN)String - (UINTN)*MacString),\r
+ PREFIX_ZERO | RADIX_HEX,\r
+ VlanId,\r
+ 4\r
+ );\r
+ String += StrnLenS (String, (BufferSize - ((UINTN)String - (UINTN)*MacString)) / sizeof (CHAR16));\r
+ }\r
\r
- *MacString = MacAddress;\r
+ //\r
+ // Null terminate the Unicode string\r
+ //\r
+ *String = L'\0';\r
\r
return EFI_SUCCESS;\r
}\r
\r
+/**\r
+ Detect media status for specified network device.\r
+\r
+ If MediaPresent is NULL, then ASSERT().\r
+\r
+ The underlying UNDI driver may or may not support reporting media status from\r
+ GET_STATUS command (PXE_STATFLAGS_GET_STATUS_NO_MEDIA_SUPPORTED). This routine\r
+ will try to invoke Snp->GetStatus() to get the media status: if media already\r
+ present, it return directly; if media not present, it will stop SNP and then\r
+ restart SNP to get the latest media status, this give chance to get the correct\r
+ media status for old UNDI driver which doesn't support reporting media status\r
+ from GET_STATUS command.\r
+ Note: there will be two limitations for current algorithm:\r
+ 1) for UNDI with this capability, in case of cable is not attached, there will\r
+ be an redundant Stop/Start() process;\r
+ 2) for UNDI without this capability, in case that network cable is attached when\r
+ Snp->Initialize() is invoked while network cable is unattached later,\r
+ NetLibDetectMedia() will report MediaPresent as TRUE, causing upper layer\r
+ apps to wait for timeout time.\r
+\r
+ @param[in] ServiceHandle The handle where network service binding protocols are\r
+ installed on.\r
+ @param[out] MediaPresent The pointer to store the media status.\r
+\r
+ @retval EFI_SUCCESS Media detection success.\r
+ @retval EFI_INVALID_PARAMETER ServiceHandle is not valid network device handle.\r
+ @retval EFI_UNSUPPORTED Network device does not support media detection.\r
+ @retval EFI_DEVICE_ERROR SNP is in unknown state.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibDetectMedia (\r
+ IN EFI_HANDLE ServiceHandle,\r
+ OUT BOOLEAN *MediaPresent\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_HANDLE SnpHandle;\r
+ EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r
+ UINT32 InterruptStatus;\r
+ UINT32 OldState;\r
+ EFI_MAC_ADDRESS *MCastFilter;\r
+ UINT32 MCastFilterCount;\r
+ UINT32 EnableFilterBits;\r
+ UINT32 DisableFilterBits;\r
+ BOOLEAN ResetMCastFilters;\r
+\r
+ ASSERT (MediaPresent != NULL);\r
+\r
+ //\r
+ // Get SNP handle\r
+ //\r
+ Snp = NULL;\r
+ SnpHandle = NetLibGetSnpHandle (ServiceHandle, &Snp);\r
+ if (SnpHandle == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ //\r
+ // Check whether SNP support media detection\r
+ //\r
+ if (!Snp->Mode->MediaPresentSupported) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // Invoke Snp->GetStatus() to refresh MediaPresent field in SNP mode data\r
+ //\r
+ Status = Snp->GetStatus (Snp, &InterruptStatus, NULL);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ if (Snp->Mode->MediaPresent) {\r
+ //\r
+ // Media is present, return directly\r
+ //\r
+ *MediaPresent = TRUE;\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ //\r
+ // Till now, GetStatus() report no media; while, in case UNDI not support\r
+ // reporting media status from GetStatus(), this media status may be incorrect.\r
+ // So, we will stop SNP and then restart it to get the correct media status.\r
+ //\r
+ OldState = Snp->Mode->State;\r
+ if (OldState >= EfiSimpleNetworkMaxState) {\r
+ return EFI_DEVICE_ERROR;\r
+ }\r
+\r
+ MCastFilter = NULL;\r
+\r
+ if (OldState == EfiSimpleNetworkInitialized) {\r
+ //\r
+ // SNP is already in use, need Shutdown/Stop and then Start/Initialize\r
+ //\r
+\r
+ //\r
+ // Backup current SNP receive filter settings\r
+ //\r
+ EnableFilterBits = Snp->Mode->ReceiveFilterSetting;\r
+ DisableFilterBits = Snp->Mode->ReceiveFilterMask ^ EnableFilterBits;\r
+\r
+ ResetMCastFilters = TRUE;\r
+ MCastFilterCount = Snp->Mode->MCastFilterCount;\r
+ if (MCastFilterCount != 0) {\r
+ MCastFilter = AllocateCopyPool (\r
+ MCastFilterCount * sizeof (EFI_MAC_ADDRESS),\r
+ Snp->Mode->MCastFilter\r
+ );\r
+ ASSERT (MCastFilter != NULL);\r
+ if (MCastFilter == NULL) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto Exit;\r
+ }\r
+\r
+ ResetMCastFilters = FALSE;\r
+ }\r
+\r
+ //\r
+ // Shutdown/Stop the simple network\r
+ //\r
+ Status = Snp->Shutdown (Snp);\r
+ if (!EFI_ERROR (Status)) {\r
+ Status = Snp->Stop (Snp);\r
+ }\r
+ if (EFI_ERROR (Status)) {\r
+ goto Exit;\r
+ }\r
+\r
+ //\r
+ // Start/Initialize the simple network\r
+ //\r
+ Status = Snp->Start (Snp);\r
+ if (!EFI_ERROR (Status)) {\r
+ Status = Snp->Initialize (Snp, 0, 0);\r
+ }\r
+ if (EFI_ERROR (Status)) {\r
+ goto Exit;\r
+ }\r
+\r
+ //\r
+ // Here we get the correct media status\r
+ //\r
+ *MediaPresent = Snp->Mode->MediaPresent;\r
+\r
+ //\r
+ // Restore SNP receive filter settings\r
+ //\r
+ Status = Snp->ReceiveFilters (\r
+ Snp,\r
+ EnableFilterBits,\r
+ DisableFilterBits,\r
+ ResetMCastFilters,\r
+ MCastFilterCount,\r
+ MCastFilter\r
+ );\r
+\r
+ if (MCastFilter != NULL) {\r
+ FreePool (MCastFilter);\r
+ }\r
+\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // SNP is not in use, it's in state of EfiSimpleNetworkStopped or EfiSimpleNetworkStarted\r
+ //\r
+ if (OldState == EfiSimpleNetworkStopped) {\r
+ //\r
+ // SNP not start yet, start it\r
+ //\r
+ Status = Snp->Start (Snp);\r
+ if (EFI_ERROR (Status)) {\r
+ goto Exit;\r
+ }\r
+ }\r
+\r
+ //\r
+ // Initialize the simple network\r
+ //\r
+ Status = Snp->Initialize (Snp, 0, 0);\r
+ if (EFI_ERROR (Status)) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Exit;\r
+ }\r
+\r
+ //\r
+ // Here we get the correct media status\r
+ //\r
+ *MediaPresent = Snp->Mode->MediaPresent;\r
+\r
+ //\r
+ // Shut down the simple network\r
+ //\r
+ Snp->Shutdown (Snp);\r
+\r
+Exit:\r
+ if (OldState == EfiSimpleNetworkStopped) {\r
+ //\r
+ // Original SNP sate is Stopped, restore to original state\r
+ //\r
+ Snp->Stop (Snp);\r
+ }\r
+\r
+ if (MCastFilter != NULL) {\r
+ FreePool (MCastFilter);\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+/**\r
+\r
+ Detect media state for a network device. This routine will wait for a period of time at\r
+ a specified checking interval when a certain network is under connecting until connection\r
+ process finishs or timeout. If Aip protocol is supported by low layer drivers, three kinds\r
+ of media states can be detected: EFI_SUCCESS, EFI_NOT_READY and EFI_NO_MEDIA, represents\r
+ connected state, connecting state and no media state respectively. When function detects\r
+ the current state is EFI_NOT_READY, it will loop to wait for next time's check until state\r
+ turns to be EFI_SUCCESS or EFI_NO_MEDIA. If Aip protocol is not supported, function will\r
+ call NetLibDetectMedia() and return state directly.\r
+\r
+ @param[in] ServiceHandle The handle where network service binding protocols are\r
+ installed on.\r
+ @param[in] Timeout The maximum number of 100ns units to wait when network\r
+ is connecting. Zero value means detect once and return\r
+ immediately.\r
+ @param[out] MediaState The pointer to the detected media state.\r
+\r
+ @retval EFI_SUCCESS Media detection success.\r
+ @retval EFI_INVALID_PARAMETER ServiceHandle is not a valid network device handle or\r
+ MediaState pointer is NULL.\r
+ @retval EFI_DEVICE_ERROR A device error occurred.\r
+ @retval EFI_TIMEOUT Network is connecting but timeout.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibDetectMediaWaitTimeout (\r
+ IN EFI_HANDLE ServiceHandle,\r
+ IN UINT64 Timeout,\r
+ OUT EFI_STATUS *MediaState\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_HANDLE SnpHandle;\r
+ EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r
+ EFI_ADAPTER_INFORMATION_PROTOCOL *Aip;\r
+ EFI_ADAPTER_INFO_MEDIA_STATE *MediaInfo;\r
+ BOOLEAN MediaPresent;\r
+ UINTN DataSize;\r
+ EFI_STATUS TimerStatus;\r
+ EFI_EVENT Timer;\r
+ UINT64 TimeRemained;\r
+\r
+ if (MediaState == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+ *MediaState = EFI_SUCCESS;\r
+ MediaInfo = NULL;\r
+\r
+ //\r
+ // Get SNP handle\r
+ //\r
+ Snp = NULL;\r
+ SnpHandle = NetLibGetSnpHandle (ServiceHandle, &Snp);\r
+ if (SnpHandle == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ Status = gBS->HandleProtocol (\r
+ SnpHandle,\r
+ &gEfiAdapterInformationProtocolGuid,\r
+ (VOID *) &Aip\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+\r
+ MediaPresent = TRUE;\r
+ Status = NetLibDetectMedia (ServiceHandle, &MediaPresent);\r
+ if (!EFI_ERROR (Status)) {\r
+ if (MediaPresent) {\r
+ *MediaState = EFI_SUCCESS;\r
+ } else {\r
+ *MediaState = EFI_NO_MEDIA;\r
+ }\r
+ }\r
+\r
+ //\r
+ // NetLibDetectMedia doesn't support EFI_NOT_READY status, return now!\r
+ //\r
+ return Status;\r
+ }\r
+\r
+ Status = Aip->GetInformation (\r
+ Aip,\r
+ &gEfiAdapterInfoMediaStateGuid,\r
+ (VOID **) &MediaInfo,\r
+ &DataSize\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+\r
+ *MediaState = MediaInfo->MediaState;\r
+ FreePool (MediaInfo);\r
+ if (*MediaState != EFI_NOT_READY || Timeout < MEDIA_STATE_DETECT_TIME_INTERVAL) {\r
+\r
+ return EFI_SUCCESS;\r
+ }\r
+ } else {\r
+\r
+ if (MediaInfo != NULL) {\r
+ FreePool (MediaInfo);\r
+ }\r
+\r
+ if (Status == EFI_UNSUPPORTED) {\r
+\r
+ //\r
+ // If gEfiAdapterInfoMediaStateGuid is not supported, call NetLibDetectMedia to get media state!\r
+ //\r
+ MediaPresent = TRUE;\r
+ Status = NetLibDetectMedia (ServiceHandle, &MediaPresent);\r
+ if (!EFI_ERROR (Status)) {\r
+ if (MediaPresent) {\r
+ *MediaState = EFI_SUCCESS;\r
+ } else {\r
+ *MediaState = EFI_NO_MEDIA;\r
+ }\r
+ }\r
+ return Status;\r
+ }\r
+\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Loop to check media state\r
+ //\r
+\r
+ Timer = NULL;\r
+ TimeRemained = Timeout;\r
+ Status = gBS->CreateEvent (EVT_TIMER, TPL_CALLBACK, NULL, NULL, &Timer);\r
+ if (EFI_ERROR (Status)) {\r
+ return EFI_DEVICE_ERROR;\r
+ }\r
+\r
+ do {\r
+ Status = gBS->SetTimer (\r
+ Timer,\r
+ TimerRelative,\r
+ MEDIA_STATE_DETECT_TIME_INTERVAL\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ gBS->CloseEvent(Timer);\r
+ return EFI_DEVICE_ERROR;\r
+ }\r
+\r
+ do {\r
+ TimerStatus = gBS->CheckEvent (Timer);\r
+ if (!EFI_ERROR (TimerStatus)) {\r
+\r
+ TimeRemained -= MEDIA_STATE_DETECT_TIME_INTERVAL;\r
+ Status = Aip->GetInformation (\r
+ Aip,\r
+ &gEfiAdapterInfoMediaStateGuid,\r
+ (VOID **) &MediaInfo,\r
+ &DataSize\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+\r
+ *MediaState = MediaInfo->MediaState;\r
+ FreePool (MediaInfo);\r
+ } else {\r
+\r
+ if (MediaInfo != NULL) {\r
+ FreePool (MediaInfo);\r
+ }\r
+ gBS->CloseEvent(Timer);\r
+ return Status;\r
+ }\r
+ }\r
+ } while (TimerStatus == EFI_NOT_READY);\r
+ } while (*MediaState == EFI_NOT_READY && TimeRemained >= MEDIA_STATE_DETECT_TIME_INTERVAL);\r
+\r
+ gBS->CloseEvent(Timer);\r
+ if (*MediaState == EFI_NOT_READY && TimeRemained < MEDIA_STATE_DETECT_TIME_INTERVAL) {\r
+ return EFI_TIMEOUT;\r
+ } else {\r
+ return EFI_SUCCESS;\r
+ }\r
+}\r
+\r
/**\r
Check the default address used by the IPv4 driver is static or dynamic (acquired\r
from DHCP).\r
\r
- @param Controller The controller handle which has the NIC Ip4 Config Protocol\r
- relative with the default address to judge.\r
+ If the controller handle does not have the EFI_IP4_CONFIG2_PROTOCOL installed, the\r
+ default address is static. If failed to get the policy from Ip4 Config2 Protocol,\r
+ the default address is static. Otherwise, get the result from Ip4 Config2 Protocol.\r
+\r
+ @param[in] Controller The controller handle which has the EFI_IP4_CONFIG2_PROTOCOL\r
+ relative with the default address to judge.\r
\r
@retval TRUE If the default address is static.\r
@retval FALSE If the default address is acquired from DHCP.\r
\r
**/\r
-STATIC\r
BOOLEAN\r
NetLibDefaultAddressIsStatic (\r
IN EFI_HANDLE Controller\r
)\r
{\r
- EFI_STATUS Status;\r
- EFI_NIC_IP4_CONFIG_PROTOCOL *NicIp4;\r
- UINTN Len;\r
- NIC_IP4_CONFIG_INFO *ConfigInfo;\r
- BOOLEAN IsStatic;\r
+ EFI_STATUS Status;\r
+ EFI_IP4_CONFIG2_PROTOCOL *Ip4Config2;\r
+ UINTN DataSize;\r
+ EFI_IP4_CONFIG2_POLICY Policy;\r
+ BOOLEAN IsStatic;\r
\r
- Status = gBS->HandleProtocol (\r
- Controller,\r
- &gEfiNicIp4ConfigProtocolGuid,\r
- (VOID **) &NicIp4\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return TRUE;\r
- }\r
+ Ip4Config2 = NULL;\r
\r
- Len = 0;\r
- Status = NicIp4->GetInfo (NicIp4, &Len, NULL);\r
- if (Status != EFI_BUFFER_TOO_SMALL) {\r
- return TRUE;\r
- }\r
+ DataSize = sizeof (EFI_IP4_CONFIG2_POLICY);\r
\r
- ConfigInfo = AllocatePool (Len);\r
- if (ConfigInfo == NULL) {\r
- return TRUE;\r
+ IsStatic = TRUE;\r
+\r
+ //\r
+ // Get Ip4Config2 policy.\r
+ //\r
+ Status = gBS->HandleProtocol (Controller, &gEfiIp4Config2ProtocolGuid, (VOID **) &Ip4Config2);\r
+ if (EFI_ERROR (Status)) {\r
+ goto ON_EXIT;\r
}\r
\r
- IsStatic = TRUE;\r
- Status = NicIp4->GetInfo (NicIp4, &Len, ConfigInfo);\r
+ Status = Ip4Config2->GetData (Ip4Config2, Ip4Config2DataTypePolicy, &DataSize, &Policy);\r
if (EFI_ERROR (Status)) {\r
goto ON_EXIT;\r
}\r
\r
- IsStatic = (BOOLEAN) (ConfigInfo->Source == IP4_CONFIG_SOURCE_STATIC);\r
+ IsStatic = (BOOLEAN) (Policy == Ip4Config2PolicyStatic);\r
\r
ON_EXIT:\r
\r
- gBS->FreePool (ConfigInfo);\r
-\r
return IsStatic;\r
}\r
\r
/**\r
Create an IPv4 device path node.\r
\r
- @param Node Pointer to the IPv4 device path node.\r
- @param Controller The handle where the NIC IP4 config protocol resides.\r
- @param LocalIp The local IPv4 address.\r
- @param LocalPort The local port.\r
- @param RemoteIp The remote IPv4 address.\r
- @param RemotePort The remote port.\r
- @param Protocol The protocol type in the IP header.\r
- @param UseDefaultAddress Whether this instance is using default address or not.\r
+ If Node is NULL, then ASSERT().\r
+\r
+ The header type of IPv4 device path node is MESSAGING_DEVICE_PATH.\r
+ The header subtype of IPv4 device path node is MSG_IPv4_DP.\r
+ Get other info from parameters to make up the whole IPv4 device path node.\r
+\r
+ @param[in, out] Node Pointer to the IPv4 device path node.\r
+ @param[in] Controller The controller handle.\r
+ @param[in] LocalIp The local IPv4 address.\r
+ @param[in] LocalPort The local port.\r
+ @param[in] RemoteIp The remote IPv4 address.\r
+ @param[in] RemotePort The remote port.\r
+ @param[in] Protocol The protocol type in the IP header.\r
+ @param[in] UseDefaultAddress Whether this instance is using default address or not.\r
\r
- @retval None\r
**/\r
VOID\r
EFIAPI\r
IN BOOLEAN UseDefaultAddress\r
)\r
{\r
+ ASSERT (Node != NULL);\r
+\r
Node->Header.Type = MESSAGING_DEVICE_PATH;\r
Node->Header.SubType = MSG_IPv4_DP;\r
- SetDevicePathNodeLength (&Node->Header, 19);\r
+ SetDevicePathNodeLength (&Node->Header, sizeof (IPv4_DEVICE_PATH));\r
\r
CopyMem (&Node->LocalIpAddress, &LocalIp, sizeof (EFI_IPv4_ADDRESS));\r
CopyMem (&Node->RemoteIpAddress, &RemoteIp, sizeof (EFI_IPv4_ADDRESS));\r
} else {\r
Node->StaticIpAddress = NetLibDefaultAddressIsStatic (Controller);\r
}\r
+\r
+ //\r
+ // Set the Gateway IP address to default value 0:0:0:0.\r
+ // Set the Subnet mask to default value 255:255:255:0.\r
+ //\r
+ ZeroMem (&Node->GatewayIpAddress, sizeof (EFI_IPv4_ADDRESS));\r
+ SetMem (&Node->SubnetMask, sizeof (EFI_IPv4_ADDRESS), 0xff);\r
+ Node->SubnetMask.Addr[3] = 0;\r
}\r
\r
+/**\r
+ Create an IPv6 device path node.\r
+\r
+ If Node is NULL, then ASSERT().\r
+ If LocalIp is NULL, then ASSERT().\r
+ If RemoteIp is NULL, then ASSERT().\r
+\r
+ The header type of IPv6 device path node is MESSAGING_DEVICE_PATH.\r
+ The header subtype of IPv6 device path node is MSG_IPv6_DP.\r
+ Get other info from parameters to make up the whole IPv6 device path node.\r
+\r
+ @param[in, out] Node Pointer to the IPv6 device path node.\r
+ @param[in] Controller The controller handle.\r
+ @param[in] LocalIp The local IPv6 address.\r
+ @param[in] LocalPort The local port.\r
+ @param[in] RemoteIp The remote IPv6 address.\r
+ @param[in] RemotePort The remote port.\r
+ @param[in] Protocol The protocol type in the IP header.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetLibCreateIPv6DPathNode (\r
+ IN OUT IPv6_DEVICE_PATH *Node,\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_IPv6_ADDRESS *LocalIp,\r
+ IN UINT16 LocalPort,\r
+ IN EFI_IPv6_ADDRESS *RemoteIp,\r
+ IN UINT16 RemotePort,\r
+ IN UINT16 Protocol\r
+ )\r
+{\r
+ ASSERT (Node != NULL && LocalIp != NULL && RemoteIp != NULL);\r
+\r
+ Node->Header.Type = MESSAGING_DEVICE_PATH;\r
+ Node->Header.SubType = MSG_IPv6_DP;\r
+ SetDevicePathNodeLength (&Node->Header, sizeof (IPv6_DEVICE_PATH));\r
+\r
+ CopyMem (&Node->LocalIpAddress, LocalIp, sizeof (EFI_IPv6_ADDRESS));\r
+ CopyMem (&Node->RemoteIpAddress, RemoteIp, sizeof (EFI_IPv6_ADDRESS));\r
+\r
+ Node->LocalPort = LocalPort;\r
+ Node->RemotePort = RemotePort;\r
+\r
+ Node->Protocol = Protocol;\r
+\r
+ //\r
+ // Set default value to IPAddressOrigin, PrefixLength.\r
+ // Set the Gateway IP address to unspecified address.\r
+ //\r
+ Node->IpAddressOrigin = 0;\r
+ Node->PrefixLength = IP6_PREFIX_LENGTH;\r
+ ZeroMem (&Node->GatewayIpAddress, sizeof (EFI_IPv6_ADDRESS));\r
+}\r
\r
/**\r
Find the UNDI/SNP handle from controller and protocol GUID.\r
+\r
+ If ProtocolGuid is NULL, then ASSERT().\r
+\r
For example, IP will open a MNP child to transmit/receive\r
packets, when MNP is stopped, IP should also be stopped. IP\r
needs to find its own private data which is related the IP's\r
IP opens these handle BY_DRIVER, use that info, we can get the\r
UNDI/SNP handle.\r
\r
- @param Controller Then protocol handle to check\r
- @param ProtocolGuid The protocol that is related with the handle.\r
+ @param[in] Controller Then protocol handle to check.\r
+ @param[in] ProtocolGuid The protocol that is related with the handle.\r
\r
- @return The UNDI/SNP handle or NULL.\r
+ @return The UNDI/SNP handle or NULL for errors.\r
\r
**/\r
EFI_HANDLE\r
UINTN OpenCount;\r
UINTN Index;\r
\r
+ ASSERT (ProtocolGuid != NULL);\r
+\r
Status = gBS->OpenProtocolInformation (\r
Controller,\r
ProtocolGuid,\r
Handle = NULL;\r
\r
for (Index = 0; Index < OpenCount; Index++) {\r
- if (OpenBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_DRIVER) {\r
+ if ((OpenBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_DRIVER) != 0) {\r
Handle = OpenBuffer[Index].ControllerHandle;\r
break;\r
}\r
}\r
\r
/**\r
- Add a Deferred Procedure Call to the end of the DPC queue.\r
+ Convert one Null-terminated ASCII string (decimal dotted) to EFI_IPv4_ADDRESS.\r
\r
- @DpcTpl The EFI_TPL that the DPC should be invoked.\r
- @DpcProcedure Pointer to the DPC's function.\r
- @DpcContext Pointer to the DPC's context. Passed to DpcProcedure\r
- when DpcProcedure is invoked.\r
+ @param[in] String The pointer to the Ascii string.\r
+ @param[out] Ip4Address The pointer to the converted IPv4 address.\r
\r
- @retval EFI_SUCCESS The DPC was queued.\r
- @retval EFI_INVALID_PARAMETER DpcTpl is not a valid EFI_TPL.\r
- DpcProcedure is NULL.\r
- @retval EFI_OUT_OF_RESOURCES There are not enough resources available to\r
- add the DPC to the queue.\r
+ @retval EFI_SUCCESS Convert to IPv4 address successfully.\r
+ @retval EFI_INVALID_PARAMETER The string is mal-formated or Ip4Address is NULL.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
-NetLibQueueDpc (\r
- IN EFI_TPL DpcTpl,\r
- IN EFI_DPC_PROCEDURE DpcProcedure,\r
- IN VOID *DpcContext OPTIONAL\r
+NetLibAsciiStrToIp4 (\r
+ IN CONST CHAR8 *String,\r
+ OUT EFI_IPv4_ADDRESS *Ip4Address\r
)\r
{\r
- return mDpc->QueueDpc (mDpc, DpcTpl, DpcProcedure, DpcContext);\r
+ RETURN_STATUS Status;\r
+ CHAR8 *EndPointer;\r
+\r
+ Status = AsciiStrToIpv4Address (String, &EndPointer, Ip4Address, NULL);\r
+ if (RETURN_ERROR (Status) || (*EndPointer != '\0')) {\r
+ return EFI_INVALID_PARAMETER;\r
+ } else {\r
+ return EFI_SUCCESS;\r
+ }\r
}\r
\r
+\r
/**\r
- Add a Deferred Procedure Call to the end of the DPC queue.\r
+ Convert one Null-terminated ASCII string to EFI_IPv6_ADDRESS. The format of the\r
+ string is defined in RFC 4291 - Text Representation of Addresses.\r
\r
- @retval EFI_SUCCESS One or more DPCs were invoked.\r
- @retval EFI_NOT_FOUND No DPCs were invoked.\r
+ @param[in] String The pointer to the Ascii string.\r
+ @param[out] Ip6Address The pointer to the converted IPv6 address.\r
+\r
+ @retval EFI_SUCCESS Convert to IPv6 address successfully.\r
+ @retval EFI_INVALID_PARAMETER The string is mal-formated or Ip6Address is NULL.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
-NetLibDispatchDpc (\r
- VOID\r
+NetLibAsciiStrToIp6 (\r
+ IN CONST CHAR8 *String,\r
+ OUT EFI_IPv6_ADDRESS *Ip6Address\r
+ )\r
+{\r
+ RETURN_STATUS Status;\r
+ CHAR8 *EndPointer;\r
+\r
+ Status = AsciiStrToIpv6Address (String, &EndPointer, Ip6Address, NULL);\r
+ if (RETURN_ERROR (Status) || (*EndPointer != '\0')) {\r
+ return EFI_INVALID_PARAMETER;\r
+ } else {\r
+ return EFI_SUCCESS;\r
+ }\r
+}\r
+\r
+\r
+/**\r
+ Convert one Null-terminated Unicode string (decimal dotted) to EFI_IPv4_ADDRESS.\r
+\r
+ @param[in] String The pointer to the Ascii string.\r
+ @param[out] Ip4Address The pointer to the converted IPv4 address.\r
+\r
+ @retval EFI_SUCCESS Convert to IPv4 address successfully.\r
+ @retval EFI_INVALID_PARAMETER The string is mal-formated or Ip4Address is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibStrToIp4 (\r
+ IN CONST CHAR16 *String,\r
+ OUT EFI_IPv4_ADDRESS *Ip4Address\r
+ )\r
+{\r
+ RETURN_STATUS Status;\r
+ CHAR16 *EndPointer;\r
+\r
+ Status = StrToIpv4Address (String, &EndPointer, Ip4Address, NULL);\r
+ if (RETURN_ERROR (Status) || (*EndPointer != L'\0')) {\r
+ return EFI_INVALID_PARAMETER;\r
+ } else {\r
+ return EFI_SUCCESS;\r
+ }\r
+}\r
+\r
+\r
+/**\r
+ Convert one Null-terminated Unicode string to EFI_IPv6_ADDRESS. The format of\r
+ the string is defined in RFC 4291 - Text Representation of Addresses.\r
+\r
+ @param[in] String The pointer to the Ascii string.\r
+ @param[out] Ip6Address The pointer to the converted IPv6 address.\r
+\r
+ @retval EFI_SUCCESS Convert to IPv6 address successfully.\r
+ @retval EFI_INVALID_PARAMETER The string is mal-formated or Ip6Address is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibStrToIp6 (\r
+ IN CONST CHAR16 *String,\r
+ OUT EFI_IPv6_ADDRESS *Ip6Address\r
)\r
{\r
- return mDpc->DispatchDpc(mDpc);\r
+ RETURN_STATUS Status;\r
+ CHAR16 *EndPointer;\r
+\r
+ Status = StrToIpv6Address (String, &EndPointer, Ip6Address, NULL);\r
+ if (RETURN_ERROR (Status) || (*EndPointer != L'\0')) {\r
+ return EFI_INVALID_PARAMETER;\r
+ } else {\r
+ return EFI_SUCCESS;\r
+ }\r
}\r
\r
+/**\r
+ Convert one Null-terminated Unicode string to EFI_IPv6_ADDRESS and prefix length.\r
+ The format of the string is defined in RFC 4291 - Text Representation of Addresses\r
+ Prefixes: ipv6-address/prefix-length.\r
+\r
+ @param[in] String The pointer to the Ascii string.\r
+ @param[out] Ip6Address The pointer to the converted IPv6 address.\r
+ @param[out] PrefixLength The pointer to the converted prefix length.\r
+\r
+ @retval EFI_SUCCESS Convert to IPv6 address successfully.\r
+ @retval EFI_INVALID_PARAMETER The string is mal-formated or Ip6Address is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibStrToIp6andPrefix (\r
+ IN CONST CHAR16 *String,\r
+ OUT EFI_IPv6_ADDRESS *Ip6Address,\r
+ OUT UINT8 *PrefixLength\r
+ )\r
+{\r
+ RETURN_STATUS Status;\r
+ CHAR16 *EndPointer;\r
+\r
+ Status = StrToIpv6Address (String, &EndPointer, Ip6Address, PrefixLength);\r
+ if (RETURN_ERROR (Status) || (*EndPointer != L'\0')) {\r
+ return EFI_INVALID_PARAMETER;\r
+ } else {\r
+ return EFI_SUCCESS;\r
+ }\r
+}\r
\r
/**\r
- The constructor function caches the pointer to DPC protocol.\r
\r
- The constructor function locates DPC protocol from protocol database.\r
- It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.\r
+ Convert one EFI_IPv6_ADDRESS to Null-terminated Unicode string.\r
+ The text representation of address is defined in RFC 4291.\r
+\r
+ @param[in] Ip6Address The pointer to the IPv6 address.\r
+ @param[out] String The buffer to return the converted string.\r
+ @param[in] StringSize The length in bytes of the input String.\r
+\r
+ @retval EFI_SUCCESS Convert to string successfully.\r
+ @retval EFI_INVALID_PARAMETER The input parameter is invalid.\r
+ @retval EFI_BUFFER_TOO_SMALL The BufferSize is too small for the result. BufferSize has been\r
+ updated with the size needed to complete the request.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibIp6ToStr (\r
+ IN EFI_IPv6_ADDRESS *Ip6Address,\r
+ OUT CHAR16 *String,\r
+ IN UINTN StringSize\r
+ )\r
+{\r
+ UINT16 Ip6Addr[8];\r
+ UINTN Index;\r
+ UINTN LongestZerosStart;\r
+ UINTN LongestZerosLength;\r
+ UINTN CurrentZerosStart;\r
+ UINTN CurrentZerosLength;\r
+ CHAR16 Buffer[sizeof"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"];\r
+ CHAR16 *Ptr;\r
+\r
+ if (Ip6Address == NULL || String == NULL || StringSize == 0) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ //\r
+ // Convert the UINT8 array to an UINT16 array for easy handling.\r
+ //\r
+ ZeroMem (Ip6Addr, sizeof (Ip6Addr));\r
+ for (Index = 0; Index < 16; Index++) {\r
+ Ip6Addr[Index / 2] |= (Ip6Address->Addr[Index] << ((1 - (Index % 2)) << 3));\r
+ }\r
\r
- @param ImageHandle The firmware allocated handle for the EFI image.\r
- @param SystemTable A pointer to the EFI System Table.\r
+ //\r
+ // Find the longest zeros and mark it.\r
+ //\r
+ CurrentZerosStart = DEFAULT_ZERO_START;\r
+ CurrentZerosLength = 0;\r
+ LongestZerosStart = DEFAULT_ZERO_START;\r
+ LongestZerosLength = 0;\r
+ for (Index = 0; Index < 8; Index++) {\r
+ if (Ip6Addr[Index] == 0) {\r
+ if (CurrentZerosStart == DEFAULT_ZERO_START) {\r
+ CurrentZerosStart = Index;\r
+ CurrentZerosLength = 1;\r
+ } else {\r
+ CurrentZerosLength++;\r
+ }\r
+ } else {\r
+ if (CurrentZerosStart != DEFAULT_ZERO_START) {\r
+ if (CurrentZerosLength > 2 && (LongestZerosStart == (DEFAULT_ZERO_START) || CurrentZerosLength > LongestZerosLength)) {\r
+ LongestZerosStart = CurrentZerosStart;\r
+ LongestZerosLength = CurrentZerosLength;\r
+ }\r
+ CurrentZerosStart = DEFAULT_ZERO_START;\r
+ CurrentZerosLength = 0;\r
+ }\r
+ }\r
+ }\r
\r
- @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r
+ if (CurrentZerosStart != DEFAULT_ZERO_START && CurrentZerosLength > 2) {\r
+ if (LongestZerosStart == DEFAULT_ZERO_START || LongestZerosLength < CurrentZerosLength) {\r
+ LongestZerosStart = CurrentZerosStart;\r
+ LongestZerosLength = CurrentZerosLength;\r
+ }\r
+ }\r
+\r
+ Ptr = Buffer;\r
+ for (Index = 0; Index < 8; Index++) {\r
+ if (LongestZerosStart != DEFAULT_ZERO_START && Index >= LongestZerosStart && Index < LongestZerosStart + LongestZerosLength) {\r
+ if (Index == LongestZerosStart) {\r
+ *Ptr++ = L':';\r
+ }\r
+ continue;\r
+ }\r
+ if (Index != 0) {\r
+ *Ptr++ = L':';\r
+ }\r
+ Ptr += UnicodeSPrint(Ptr, 10, L"%x", Ip6Addr[Index]);\r
+ }\r
+\r
+ if (LongestZerosStart != DEFAULT_ZERO_START && LongestZerosStart + LongestZerosLength == 8) {\r
+ *Ptr++ = L':';\r
+ }\r
+ *Ptr = L'\0';\r
+\r
+ if ((UINTN)Ptr - (UINTN)Buffer > StringSize) {\r
+ return EFI_BUFFER_TOO_SMALL;\r
+ }\r
+\r
+ StrCpyS (String, StringSize / sizeof (CHAR16), Buffer);\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ This function obtains the system guid from the smbios table.\r
+\r
+ If SystemGuid is NULL, then ASSERT().\r
+\r
+ @param[out] SystemGuid The pointer of the returned system guid.\r
+\r
+ @retval EFI_SUCCESS Successfully obtained the system guid.\r
+ @retval EFI_NOT_FOUND Did not find the SMBIOS table.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
-NetLibConstructor (\r
- IN EFI_HANDLE ImageHandle,\r
- IN EFI_SYSTEM_TABLE *SystemTable\r
+NetLibGetSystemGuid (\r
+ OUT EFI_GUID *SystemGuid\r
)\r
{\r
- EFI_STATUS Status;\r
+ EFI_STATUS Status;\r
+ SMBIOS_TABLE_ENTRY_POINT *SmbiosTable;\r
+ SMBIOS_TABLE_3_0_ENTRY_POINT *Smbios30Table;\r
+ SMBIOS_STRUCTURE_POINTER Smbios;\r
+ SMBIOS_STRUCTURE_POINTER SmbiosEnd;\r
+ CHAR8 *String;\r
+\r
+ ASSERT (SystemGuid != NULL);\r
+\r
+ SmbiosTable = NULL;\r
+ Status = EfiGetSystemConfigurationTable (&gEfiSmbios3TableGuid, (VOID **) &Smbios30Table);\r
+ if (!(EFI_ERROR (Status) || Smbios30Table == NULL)) {\r
+ Smbios.Hdr = (SMBIOS_STRUCTURE *) (UINTN) Smbios30Table->TableAddress;\r
+ SmbiosEnd.Raw = (UINT8 *) (UINTN) (Smbios30Table->TableAddress + Smbios30Table->TableMaximumSize);\r
+ } else {\r
+ Status = EfiGetSystemConfigurationTable (&gEfiSmbiosTableGuid, (VOID **) &SmbiosTable);\r
+ if (EFI_ERROR (Status) || SmbiosTable == NULL) {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+ Smbios.Hdr = (SMBIOS_STRUCTURE *) (UINTN) SmbiosTable->TableAddress;\r
+ SmbiosEnd.Raw = (UINT8 *) ((UINTN) SmbiosTable->TableAddress + SmbiosTable->TableLength);\r
+ }\r
+\r
+ do {\r
+ if (Smbios.Hdr->Type == 1) {\r
+ if (Smbios.Hdr->Length < 0x19) {\r
+ //\r
+ // Older version did not support UUID.\r
+ //\r
+ return EFI_NOT_FOUND;\r
+ }\r
\r
- Status = gBS->LocateProtocol (&gEfiDpcProtocolGuid, NULL, (VOID**) &mDpc);\r
- ASSERT_EFI_ERROR (Status);\r
- ASSERT (mDpc != NULL);\r
+ //\r
+ // SMBIOS tables are byte packed so we need to do a byte copy to\r
+ // prevend alignment faults on Itanium-based platform.\r
+ //\r
+ CopyMem (SystemGuid, &Smbios.Type1->Uuid, sizeof (EFI_GUID));\r
+ return EFI_SUCCESS;\r
+ }\r
\r
- return Status;\r
+ //\r
+ // Go to the next SMBIOS structure. Each SMBIOS structure may include 2 parts:\r
+ // 1. Formatted section; 2. Unformatted string section. So, 2 steps are needed\r
+ // to skip one SMBIOS structure.\r
+ //\r
+\r
+ //\r
+ // Step 1: Skip over formatted section.\r
+ //\r
+ String = (CHAR8 *) (Smbios.Raw + Smbios.Hdr->Length);\r
+\r
+ //\r
+ // Step 2: Skip over unformated string section.\r
+ //\r
+ do {\r
+ //\r
+ // Each string is terminated with a NULL(00h) BYTE and the sets of strings\r
+ // is terminated with an additional NULL(00h) BYTE.\r
+ //\r
+ for ( ; *String != 0; String++) {\r
+ }\r
+\r
+ if (*(UINT8*)++String == 0) {\r
+ //\r
+ // Pointer to the next SMBIOS structure.\r
+ //\r
+ Smbios.Raw = (UINT8 *)++String;\r
+ break;\r
+ }\r
+ } while (TRUE);\r
+ } while (Smbios.Raw < SmbiosEnd.Raw);\r
+ return EFI_NOT_FOUND;\r
+}\r
+\r
+/**\r
+ Create Dns QName according the queried domain name.\r
+\r
+ If DomainName is NULL, then ASSERT().\r
+\r
+ QName is a domain name represented as a sequence of labels,\r
+ where each label consists of a length octet followed by that\r
+ number of octets. The QName terminates with the zero\r
+ length octet for the null label of the root. Caller should\r
+ take responsibility to free the buffer in returned pointer.\r
+\r
+ @param DomainName The pointer to the queried domain name string.\r
+\r
+ @retval NULL Failed to fill QName.\r
+ @return QName filled successfully.\r
+\r
+**/\r
+CHAR8 *\r
+EFIAPI\r
+NetLibCreateDnsQName (\r
+ IN CHAR16 *DomainName\r
+ )\r
+{\r
+ CHAR8 *QueryName;\r
+ UINTN QueryNameSize;\r
+ CHAR8 *Header;\r
+ CHAR8 *Tail;\r
+ UINTN Len;\r
+ UINTN Index;\r
+\r
+ ASSERT (DomainName != NULL);\r
+\r
+ QueryName = NULL;\r
+ QueryNameSize = 0;\r
+ Header = NULL;\r
+ Tail = NULL;\r
+\r
+ //\r
+ // One byte for first label length, one byte for terminated length zero.\r
+ //\r
+ QueryNameSize = StrLen (DomainName) + 2;\r
+\r
+ if (QueryNameSize > DNS_MAX_NAME_SIZE) {\r
+ return NULL;\r
+ }\r
+\r
+ QueryName = AllocateZeroPool (QueryNameSize);\r
+ if (QueryName == NULL) {\r
+ return NULL;\r
+ }\r
+\r
+ Header = QueryName;\r
+ Tail = Header + 1;\r
+ Len = 0;\r
+ for (Index = 0; DomainName[Index] != 0; Index++) {\r
+ *Tail = (CHAR8) DomainName[Index];\r
+ if (*Tail == '.') {\r
+ *Header = (CHAR8) Len;\r
+ Header = Tail;\r
+ Tail ++;\r
+ Len = 0;\r
+ } else {\r
+ Tail++;\r
+ Len++;\r
+ }\r
+ }\r
+ *Header = (CHAR8) Len;\r
+ *Tail = 0;\r
+\r
+ return QueryName;\r
}\r
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