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f9a088de | 1 | /** @file\r |
4cda7726 | 2 | Implementation of converting an multicast IP address to multicast HW MAC\r |
3 | address.\r | |
4 | \r | |
5 | Copyright (c) 2004 - 2007, Intel Corporation. <BR> \r | |
6 | All rights reserved. This program and the accompanying materials are licensed \r | |
7 | and made available under the terms and conditions of the BSD License which \r | |
8 | accompanies this distribution. The full text of the license may be found at \r | |
9 | http://opensource.org/licenses/bsd-license.php \r | |
f9a088de | 10 | \r |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
f9a088de | 14 | **/\r |
15 | \r | |
16 | #include "Snp.h"\r | |
17 | \r | |
18 | /**\r | |
f3816027 | 19 | Call undi to convert an multicast IP address to a MAC address.\r |
f9a088de | 20 | \r |
f3816027 | 21 | @param Snp Pointer to snp driver structure.\r |
22 | @param IPv6 Flag to indicate if this is an ipv6 address.\r | |
23 | @param IP Multicast IP address.\r | |
24 | @param MAC Pointer to hold the return MAC address.\r | |
f9a088de | 25 | \r |
f3816027 | 26 | @retval EFI_SUCCESS The multicast IP address was mapped to the \r |
27 | multicast HW MAC address.\r | |
28 | @retval EFI_INVALID_PARAMETER Invalid UNDI command. \r | |
29 | @retval EFI_UNSUPPORTED Command is not supported by UNDI. \r | |
30 | @retval EFI_DEVICE_ERROR Fail to execute UNDI command. \r | |
f9a088de | 31 | \r |
32 | **/\r | |
f9a088de | 33 | EFI_STATUS\r |
4cda7726 | 34 | PxeIp2Mac (\r |
35 | IN SNP_DRIVER *Snp,\r | |
f9a088de | 36 | IN BOOLEAN IPv6,\r |
37 | IN EFI_IP_ADDRESS *IP,\r | |
38 | IN OUT EFI_MAC_ADDRESS *MAC\r | |
39 | )\r | |
40 | {\r | |
4cda7726 | 41 | PXE_CPB_MCAST_IP_TO_MAC *Cpb;\r |
42 | PXE_DB_MCAST_IP_TO_MAC *Db;\r | |
f9a088de | 43 | \r |
4cda7726 | 44 | Cpb = Snp->Cpb;\r |
45 | Db = Snp->Db;\r | |
46 | Snp->Cdb.OpCode = PXE_OPCODE_MCAST_IP_TO_MAC;\r | |
47 | Snp->Cdb.OpFlags = (UINT16) (IPv6 ? PXE_OPFLAGS_MCAST_IPV6_TO_MAC : PXE_OPFLAGS_MCAST_IPV4_TO_MAC);\r | |
48 | Snp->Cdb.CPBsize = sizeof (PXE_CPB_MCAST_IP_TO_MAC);\r | |
49 | Snp->Cdb.DBsize = sizeof (PXE_DB_MCAST_IP_TO_MAC);\r | |
f9a088de | 50 | \r |
4cda7726 | 51 | Snp->Cdb.CPBaddr = (UINT64)(UINTN) Cpb;\r |
52 | Snp->Cdb.DBaddr = (UINT64)(UINTN) Db;\r | |
f9a088de | 53 | \r |
4cda7726 | 54 | Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;\r |
55 | Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
56 | Snp->Cdb.IFnum = Snp->IfNum;\r | |
57 | Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
f9a088de | 58 | \r |
4cda7726 | 59 | CopyMem (&Cpb->IP, IP, sizeof (PXE_IP_ADDR));\r |
f9a088de | 60 | \r |
61 | //\r | |
62 | // Issue UNDI command and check result.\r | |
63 | //\r | |
f3816027 | 64 | DEBUG ((EFI_D_INFO | EFI_D_NET, "\nSnp->undi.mcast_ip_to_mac() "));\r |
f9a088de | 65 | \r |
4cda7726 | 66 | (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r |
f9a088de | 67 | \r |
4cda7726 | 68 | switch (Snp->Cdb.StatCode) {\r |
f9a088de | 69 | case PXE_STATCODE_SUCCESS:\r |
70 | break;\r | |
71 | \r | |
72 | case PXE_STATCODE_INVALID_CPB:\r | |
73 | return EFI_INVALID_PARAMETER;\r | |
74 | \r | |
75 | case PXE_STATCODE_UNSUPPORTED:\r | |
76 | DEBUG (\r | |
f3816027 | 77 | (EFI_D_ERROR | EFI_D_NET,\r |
4cda7726 | 78 | "\nSnp->undi.mcast_ip_to_mac() %xh:%xh\n",\r |
79 | Snp->Cdb.StatFlags,\r | |
80 | Snp->Cdb.StatCode)\r | |
f9a088de | 81 | );\r |
82 | return EFI_UNSUPPORTED;\r | |
83 | \r | |
84 | default:\r | |
85 | //\r | |
86 | // UNDI command failed. Return EFI_DEVICE_ERROR\r | |
87 | // to caller.\r | |
88 | //\r | |
89 | DEBUG (\r | |
f3816027 | 90 | (EFI_D_ERROR | EFI_D_NET,\r |
4cda7726 | 91 | "\nSnp->undi.mcast_ip_to_mac() %xh:%xh\n",\r |
92 | Snp->Cdb.StatFlags,\r | |
93 | Snp->Cdb.StatCode)\r | |
f9a088de | 94 | );\r |
95 | \r | |
96 | return EFI_DEVICE_ERROR;\r | |
97 | }\r | |
98 | \r | |
4cda7726 | 99 | CopyMem (MAC, &Db->MAC, sizeof (PXE_MAC_ADDR));\r |
f9a088de | 100 | return EFI_SUCCESS;\r |
101 | }\r | |
102 | \r | |
103 | \r | |
104 | /**\r | |
4cda7726 | 105 | Converts a multicast IP address to a multicast HW MAC address.\r |
106 | \r | |
107 | This function converts a multicast IP address to a multicast HW MAC address \r | |
108 | for all packet transactions. If the mapping is accepted, then EFI_SUCCESS will\r | |
109 | be returned.\r | |
110 | \r | |
111 | @param This A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL instance.\r | |
112 | @param IPv6 Set to TRUE if the multicast IP address is IPv6 [RFC 2460].\r | |
113 | Set to FALSE if the multicast IP address is IPv4 [RFC 791]. \r | |
114 | @param IP The multicast IP address that is to be converted to a multicast \r | |
115 | HW MAC address.\r | |
116 | @param MAC The multicast HW MAC address that is to be generated from IP.\r | |
117 | \r | |
118 | @retval EFI_SUCCESS The multicast IP address was mapped to the\r | |
119 | multicast HW MAC address.\r | |
120 | @retval EFI_NOT_STARTED The Simple Network Protocol interface has not \r | |
121 | been started by calling Start().\r | |
122 | @retval EFI_INVALID_PARAMETER IP is NULL.\r | |
123 | @retval EFI_INVALID_PARAMETER MAC is NULL.\r | |
124 | @retval EFI_INVALID_PARAMETER IP does not point to a valid IPv4 or IPv6 \r | |
125 | multicast address.\r | |
126 | @retval EFI_DEVICE_ERROR The Simple Network Protocol interface has not \r | |
127 | been initialized by calling Initialize().\r | |
128 | @retval EFI_UNSUPPORTED IPv6 is TRUE and the implementation does not \r | |
129 | support IPv6 multicast to MAC address conversion.\r | |
f9a088de | 130 | \r |
131 | **/\r | |
132 | EFI_STATUS\r | |
133 | EFIAPI\r | |
4cda7726 | 134 | SnpUndi32McastIpToMac (\r |
135 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
f9a088de | 136 | IN BOOLEAN IPv6,\r |
137 | IN EFI_IP_ADDRESS *IP,\r | |
138 | OUT EFI_MAC_ADDRESS *MAC\r | |
139 | )\r | |
140 | {\r | |
4cda7726 | 141 | SNP_DRIVER *Snp;\r |
f9a088de | 142 | EFI_TPL OldTpl;\r |
143 | EFI_STATUS Status;\r | |
144 | \r | |
145 | //\r | |
146 | // Get pointer to SNP driver instance for *this.\r | |
147 | //\r | |
4cda7726 | 148 | if (This == NULL) {\r |
f9a088de | 149 | return EFI_INVALID_PARAMETER;\r |
150 | }\r | |
151 | \r | |
152 | if (IP == NULL || MAC == NULL) {\r | |
153 | return EFI_INVALID_PARAMETER;\r | |
154 | }\r | |
155 | \r | |
4cda7726 | 156 | Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);\r |
f9a088de | 157 | \r |
158 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
159 | \r | |
4cda7726 | 160 | switch (Snp->Mode.State) {\r |
f9a088de | 161 | case EfiSimpleNetworkInitialized:\r |
162 | break;\r | |
163 | \r | |
164 | case EfiSimpleNetworkStopped:\r | |
165 | Status = EFI_NOT_STARTED;\r | |
166 | goto ON_EXIT;\r | |
167 | \r | |
168 | default:\r | |
169 | Status = EFI_DEVICE_ERROR;\r | |
170 | goto ON_EXIT;\r | |
171 | }\r | |
172 | \r | |
4cda7726 | 173 | Status = PxeIp2Mac (Snp, IPv6, IP, MAC);\r |
f9a088de | 174 | \r |
175 | ON_EXIT:\r | |
176 | gBS->RestoreTPL (OldTpl);\r | |
177 | \r | |
178 | return Status;\r | |
179 | }\r |