/** @file\r
\r
-Copyright (c) 2005 - 2015, Intel Corporation. All rights reserved.<BR>\r
-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
+Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
IpInstance->Signature = IP4_PROTOCOL_SIGNATURE;\r
CopyMem (&IpInstance->Ip4Proto, &mEfiIp4ProtocolTemplete, sizeof (IpInstance->Ip4Proto));\r
IpInstance->State = IP4_STATE_UNCONFIGED;\r
+ IpInstance->InDestroy = FALSE;\r
IpInstance->Service = IpSb;\r
\r
InitializeListHead (&IpInstance->Link);\r
}\r
\r
\r
-\r
/**\r
Configure the IP4 child. If the child is already configured,\r
change the configuration parameter. Otherwise configure it\r
IP4_ADDR Ip;\r
IP4_ADDR Netmask;\r
EFI_ARP_PROTOCOL *Arp;\r
+ EFI_IP4_CONFIG2_PROTOCOL *Ip4Config2;\r
+ EFI_IP4_CONFIG2_POLICY Policy;\r
\r
IpSb = IpInstance->Service;\r
\r
+ Ip4Config2 = NULL;\r
+\r
//\r
// User is changing packet filters. It must be stopped\r
// before the station address can be changed.\r
}\r
\r
//\r
- // Add a route to this connected network in the route table\r
+ // Add a route to this connected network in the instance route table.\r
//\r
- Ip4AddRoute (IpInstance->RouteTable, Ip, Netmask, IP4_ALLZERO_ADDRESS);\r
-\r
+ Ip4AddRoute (\r
+ IpInstance->RouteTable,\r
+ Ip & Netmask,\r
+ Netmask,\r
+ IP4_ALLZERO_ADDRESS\r
+ );\r
} else {\r
//\r
- // Use the default address. If the default configuration hasn't\r
- // been started, start it.\r
+ // Use the default address. Check the state.\r
//\r
if (IpSb->State == IP4_SERVICE_UNSTARTED) {\r
- Status = Ip4StartAutoConfig (&IpSb->Ip4Config2Instance);\r
-\r
- if (EFI_ERROR (Status)) {\r
- goto ON_ERROR;\r
+ //\r
+ // Trigger the EFI_IP4_CONFIG2_PROTOCOL to retrieve the\r
+ // default IPv4 address if it is not available yet.\r
+ //\r
+ Policy = IpSb->Ip4Config2Instance.Policy;\r
+ if (Policy != Ip4Config2PolicyDhcp) {\r
+ Ip4Config2 = &IpSb->Ip4Config2Instance.Ip4Config2;\r
+ Policy = Ip4Config2PolicyDhcp;\r
+ Status= Ip4Config2->SetData (\r
+ Ip4Config2,\r
+ Ip4Config2DataTypePolicy,\r
+ sizeof (EFI_IP4_CONFIG2_POLICY),\r
+ &Policy\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto ON_ERROR;\r
+ }\r
}\r
}\r
\r
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r
);\r
if (EFI_ERROR (Status)) {\r
+ Ip4FreeInterface (IpIf, IpInstance);\r
goto ON_ERROR;\r
}\r
}\r
}\r
\r
\r
-/**\r
- Validate that Ip/Netmask pair is OK to be used as station\r
- address. Only continuous netmasks are supported. and check\r
- that StationAddress is a unicast address on the newtwork.\r
-\r
- @param[in] Ip The IP address to validate.\r
- @param[in] Netmask The netmaks of the IP.\r
-\r
- @retval TRUE The Ip/Netmask pair is valid.\r
- @retval FALSE The Ip/Netmask pair is invalid.\r
-\r
-**/\r
-BOOLEAN\r
-Ip4StationAddressValid (\r
- IN IP4_ADDR Ip,\r
- IN IP4_ADDR Netmask\r
- )\r
-{\r
- IP4_ADDR NetBrdcastMask;\r
- INTN Len;\r
- INTN Type;\r
-\r
- //\r
- // Only support the station address with 0.0.0.0/0 to enable DHCP client.\r
- //\r
- if (Netmask == IP4_ALLZERO_ADDRESS) {\r
- return (BOOLEAN) (Ip == IP4_ALLZERO_ADDRESS);\r
- }\r
-\r
- //\r
- // Only support the continuous net masks\r
- //\r
- if ((Len = NetGetMaskLength (Netmask)) == IP4_MASK_NUM) {\r
- return FALSE;\r
- }\r
-\r
- //\r
- // Station address can't be class D or class E address\r
- //\r
- if ((Type = NetGetIpClass (Ip)) > IP4_ADDR_CLASSC) {\r
- return FALSE;\r
- }\r
-\r
- //\r
- // Station address can't be subnet broadcast/net broadcast address\r
- //\r
- if ((Ip == (Ip & Netmask)) || (Ip == (Ip | ~Netmask))) {\r
- return FALSE;\r
- }\r
-\r
- NetBrdcastMask = gIp4AllMasks[MIN (Len, Type << 3)];\r
-\r
- if (Ip == (Ip | ~NetBrdcastMask)) {\r
- return FALSE;\r
- }\r
-\r
- return TRUE;\r
-}\r
-\r
-\r
/**\r
Assigns an IPv4 address and subnet mask to this EFI IPv4 Protocol driver instance.\r
\r
Status = Ip4CleanProtocol (IpInstance);\r
\r
//\r
- // Don't change the state if it is DESTROY, consider the following\r
- // valid sequence: Mnp is unloaded-->Ip Stopped-->Udp Stopped,\r
+ // Consider the following valid sequence: Mnp is unloaded-->Ip Stopped-->Udp Stopped,\r
// Configure (ThisIp, NULL). If the state is changed to UNCONFIGED,\r
// the unload fails miserably.\r
//\r
// is decreamented each time an address is removed..\r
//\r
for (Index = IpInstance->GroupCount; Index > 0 ; Index--) {\r
+ ASSERT (IpInstance->Groups != NULL);\r
Group = IpInstance->Groups[Index - 1];\r
-\r
if ((GroupAddress == NULL) || EFI_IP4_EQUAL (&Group, GroupAddress)) {\r
if (EFI_ERROR (Ip4LeaveGroup (IpInstance, NTOHL (Group)))) {\r
return EFI_DEVICE_ERROR;\r
// the gateway address must be a unicast on the connected network if not zero.\r
//\r
if ((Nexthop != IP4_ALLZERO_ADDRESS) &&\r
- (!IP4_NET_EQUAL (Nexthop, IpIf->Ip, IpIf->SubnetMask) ||\r
+ ((IpIf->SubnetMask != IP4_ALLONE_ADDRESS && !IP4_NET_EQUAL (Nexthop, IpIf->Ip, IpIf->SubnetMask)) ||\r
IP4_IS_BROADCAST (Ip4GetNetCast (Nexthop, IpIf)))) {\r
\r
Status = EFI_INVALID_PARAMETER;\r
}\r
\r
RawHdrLen = (UINT8) (RawHdrLen << 2);\r
- \r
+\r
CopyMem (&Head, FirstFragment, IP4_MIN_HEADLEN);\r
\r
Ip4NtohHead (&Head);\r
return EFI_SUCCESS;\r
}\r
\r
-\r
/**\r
- The heart beat timer of IP4 service instance. It times out\r
- all of its IP4 children's received-but-not-delivered and\r
- transmitted-but-not-recycle packets, and provides time input\r
- for its IGMP protocol.\r
+ This heart beat timer of IP4 service instance times out all of its IP4 children's\r
+ received-but-not-delivered and transmitted-but-not-recycle packets, and provides\r
+ time input for its IGMP protocol.\r
\r
@param[in] Event The IP4 service instance's heart beat timer.\r
@param[in] Context The IP4 service instance.\r
Ip4PacketTimerTicking (IpSb);\r
Ip4IgmpTicking (IpSb);\r
}\r
+\r
+/**\r
+ This dedicated timer is used to poll underlying network media status. In case\r
+ of cable swap or wireless network switch, a new round auto configuration will\r
+ be initiated. The timer will signal the IP4 to run DHCP configuration again.\r
+ IP4 driver will free old IP address related resource, such as route table and\r
+ Interface, then initiate a DHCP process to acquire new IP, eventually create\r
+ route table for new IP address.\r
+\r
+ @param[in] Event The IP4 service instance's heart beat timer.\r
+ @param[in] Context The IP4 service instance.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+Ip4TimerReconfigChecking (\r
+ IN EFI_EVENT Event,\r
+ IN VOID *Context\r
+ )\r
+{\r
+ IP4_SERVICE *IpSb;\r
+ BOOLEAN OldMediaPresent;\r
+ EFI_STATUS Status;\r
+ EFI_SIMPLE_NETWORK_MODE SnpModeData;\r
+\r
+ IpSb = (IP4_SERVICE *) Context;\r
+ NET_CHECK_SIGNATURE (IpSb, IP4_SERVICE_SIGNATURE);\r
+\r
+ OldMediaPresent = IpSb->MediaPresent;\r
+\r
+ //\r
+ // Get fresh mode data from MNP, since underlying media status may change.\r
+ // Here, it needs to mention that the MediaPresent can also be checked even if\r
+ // EFI_NOT_STARTED returned while this MNP child driver instance isn't configured.\r
+ //\r
+ Status = IpSb->Mnp->GetModeData (IpSb->Mnp, NULL, &SnpModeData);\r
+ if (EFI_ERROR (Status) && (Status != EFI_NOT_STARTED)) {\r
+ return;\r
+ }\r
+\r
+ IpSb->MediaPresent = SnpModeData.MediaPresent;\r
+ //\r
+ // Media transimit Unpresent to Present means new link movement is detected.\r
+ //\r
+ if (!OldMediaPresent && IpSb->MediaPresent && (IpSb->Ip4Config2Instance.Policy == Ip4Config2PolicyDhcp)) {\r
+ //\r
+ // Signal the IP4 to run the dhcp configuration again. IP4 driver will free\r
+ // old IP address related resource, such as route table and Interface, then\r
+ // initiate a DHCP round to acquire new IP, eventually\r
+ // create route table for new IP address.\r
+ //\r
+ if (IpSb->ReconfigEvent != NULL) {\r
+ Status = gBS->SignalEvent (IpSb->ReconfigEvent);\r
+ DispatchDpc ();\r
+ }\r
+ }\r
+}\r
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