--- /dev/null
+/** @file\r
+Copyright (c) 2004 - 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
+ mcast_ip_to_mac.c\r
+\r
+Abstract:\r
+\r
+Revision history:\r
+ 2000-Feb-17 M(f)J Genesis.\r
+\r
+**/\r
+\r
+#include "Snp.h"\r
+\r
+/**\r
+ this routine calls undi to convert an multicast IP address to a MAC address\r
+\r
+ @param snp pointer to snp driver structure\r
+ @param IPv6 flag to indicate if this is an ipv6 address\r
+ @param IP multicast IP address\r
+ @param MAC pointer to hold the return MAC address\r
+\r
+\r
+**/\r
+STATIC\r
+EFI_STATUS\r
+pxe_ip2mac (\r
+ IN SNP_DRIVER *snp,\r
+ IN BOOLEAN IPv6,\r
+ IN EFI_IP_ADDRESS *IP,\r
+ IN OUT EFI_MAC_ADDRESS *MAC\r
+ )\r
+{\r
+ PXE_CPB_MCAST_IP_TO_MAC *cpb;\r
+ PXE_DB_MCAST_IP_TO_MAC *db;\r
+\r
+ cpb = snp->cpb;\r
+ db = snp->db;\r
+ snp->cdb.OpCode = PXE_OPCODE_MCAST_IP_TO_MAC;\r
+ snp->cdb.OpFlags = (UINT16) (IPv6 ? PXE_OPFLAGS_MCAST_IPV6_TO_MAC : PXE_OPFLAGS_MCAST_IPV4_TO_MAC);\r
+ snp->cdb.CPBsize = sizeof (PXE_CPB_MCAST_IP_TO_MAC);\r
+ snp->cdb.DBsize = sizeof (PXE_DB_MCAST_IP_TO_MAC);\r
+\r
+ snp->cdb.CPBaddr = (UINT64)(UINTN) cpb;\r
+ snp->cdb.DBaddr = (UINT64)(UINTN) db;\r
+\r
+ snp->cdb.StatCode = PXE_STATCODE_INITIALIZE;\r
+ snp->cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r
+ snp->cdb.IFnum = snp->if_num;\r
+ snp->cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r
+\r
+ CopyMem (&cpb->IP, IP, sizeof (PXE_IP_ADDR));\r
+\r
+ //\r
+ // Issue UNDI command and check result.\r
+ //\r
+ DEBUG ((EFI_D_NET, "\nsnp->undi.mcast_ip_to_mac() "));\r
+\r
+ (*snp->issue_undi32_command) ((UINT64)(UINTN) &snp->cdb);\r
+\r
+ switch (snp->cdb.StatCode) {\r
+ case PXE_STATCODE_SUCCESS:\r
+ break;\r
+\r
+ case PXE_STATCODE_INVALID_CPB:\r
+ return EFI_INVALID_PARAMETER;\r
+\r
+ case PXE_STATCODE_UNSUPPORTED:\r
+ DEBUG (\r
+ (EFI_D_NET,\r
+ "\nsnp->undi.mcast_ip_to_mac() %xh:%xh\n",\r
+ snp->cdb.StatFlags,\r
+ snp->cdb.StatCode)\r
+ );\r
+ return EFI_UNSUPPORTED;\r
+\r
+ default:\r
+ //\r
+ // UNDI command failed. Return EFI_DEVICE_ERROR\r
+ // to caller.\r
+ //\r
+ DEBUG (\r
+ (EFI_D_NET,\r
+ "\nsnp->undi.mcast_ip_to_mac() %xh:%xh\n",\r
+ snp->cdb.StatFlags,\r
+ snp->cdb.StatCode)\r
+ );\r
+\r
+ return EFI_DEVICE_ERROR;\r
+ }\r
+\r
+ CopyMem (MAC, &db->MAC, sizeof (PXE_MAC_ADDR));\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+\r
+/**\r
+ This is the SNP interface routine for converting a multicast IP address to\r
+ a MAC address.\r
+ This routine basically retrieves snp structure, checks the SNP state and\r
+ calls the pxe_ip2mac routine to actually do the conversion\r
+\r
+ @param this context pointer\r
+ @param IPv6 flag to indicate if this is an ipv6 address\r
+ @param IP multicast IP address\r
+ @param MAC pointer to hold the return MAC address\r
+\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+snp_undi32_mcast_ip_to_mac (\r
+ IN EFI_SIMPLE_NETWORK_PROTOCOL *this,\r
+ IN BOOLEAN IPv6,\r
+ IN EFI_IP_ADDRESS *IP,\r
+ OUT EFI_MAC_ADDRESS *MAC\r
+ )\r
+{\r
+ SNP_DRIVER *snp;\r
+ EFI_TPL OldTpl;\r
+ EFI_STATUS Status;\r
+\r
+ //\r
+ // Get pointer to SNP driver instance for *this.\r
+ //\r
+ if (this == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (IP == NULL || MAC == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);\r
+\r
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
+\r
+ switch (snp->mode.State) {\r
+ case EfiSimpleNetworkInitialized:\r
+ break;\r
+\r
+ case EfiSimpleNetworkStopped:\r
+ Status = EFI_NOT_STARTED;\r
+ goto ON_EXIT;\r
+\r
+ default:\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto ON_EXIT;\r
+ }\r
+\r
+ Status = pxe_ip2mac (snp, IPv6, IP, MAC);\r
+\r
+ON_EXIT:\r
+ gBS->RestoreTPL (OldTpl);\r
+\r
+ return Status;\r
+}\r