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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 | |
4cda7726 | 19 | this routine calls undi to convert an multicast IP address to a MAC address.\r |
f9a088de | 20 | \r |
4cda7726 | 21 | @param Snp pointer to snp driver structure\r |
f9a088de | 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 | |
25 | \r | |
26 | \r | |
27 | **/\r | |
f9a088de | 28 | EFI_STATUS\r |
4cda7726 | 29 | PxeIp2Mac (\r |
30 | IN SNP_DRIVER *Snp,\r | |
f9a088de | 31 | IN BOOLEAN IPv6,\r |
32 | IN EFI_IP_ADDRESS *IP,\r | |
33 | IN OUT EFI_MAC_ADDRESS *MAC\r | |
34 | )\r | |
35 | {\r | |
4cda7726 | 36 | PXE_CPB_MCAST_IP_TO_MAC *Cpb;\r |
37 | PXE_DB_MCAST_IP_TO_MAC *Db;\r | |
f9a088de | 38 | \r |
4cda7726 | 39 | Cpb = Snp->Cpb;\r |
40 | Db = Snp->Db;\r | |
41 | Snp->Cdb.OpCode = PXE_OPCODE_MCAST_IP_TO_MAC;\r | |
42 | Snp->Cdb.OpFlags = (UINT16) (IPv6 ? PXE_OPFLAGS_MCAST_IPV6_TO_MAC : PXE_OPFLAGS_MCAST_IPV4_TO_MAC);\r | |
43 | Snp->Cdb.CPBsize = sizeof (PXE_CPB_MCAST_IP_TO_MAC);\r | |
44 | Snp->Cdb.DBsize = sizeof (PXE_DB_MCAST_IP_TO_MAC);\r | |
f9a088de | 45 | \r |
4cda7726 | 46 | Snp->Cdb.CPBaddr = (UINT64)(UINTN) Cpb;\r |
47 | Snp->Cdb.DBaddr = (UINT64)(UINTN) Db;\r | |
f9a088de | 48 | \r |
4cda7726 | 49 | Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;\r |
50 | Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
51 | Snp->Cdb.IFnum = Snp->IfNum;\r | |
52 | Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
f9a088de | 53 | \r |
4cda7726 | 54 | CopyMem (&Cpb->IP, IP, sizeof (PXE_IP_ADDR));\r |
f9a088de | 55 | \r |
56 | //\r | |
57 | // Issue UNDI command and check result.\r | |
58 | //\r | |
4cda7726 | 59 | DEBUG ((EFI_D_NET, "\nSnp->undi.mcast_ip_to_mac() "));\r |
f9a088de | 60 | \r |
4cda7726 | 61 | (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r |
f9a088de | 62 | \r |
4cda7726 | 63 | switch (Snp->Cdb.StatCode) {\r |
f9a088de | 64 | case PXE_STATCODE_SUCCESS:\r |
65 | break;\r | |
66 | \r | |
67 | case PXE_STATCODE_INVALID_CPB:\r | |
68 | return EFI_INVALID_PARAMETER;\r | |
69 | \r | |
70 | case PXE_STATCODE_UNSUPPORTED:\r | |
71 | DEBUG (\r | |
72 | (EFI_D_NET,\r | |
4cda7726 | 73 | "\nSnp->undi.mcast_ip_to_mac() %xh:%xh\n",\r |
74 | Snp->Cdb.StatFlags,\r | |
75 | Snp->Cdb.StatCode)\r | |
f9a088de | 76 | );\r |
77 | return EFI_UNSUPPORTED;\r | |
78 | \r | |
79 | default:\r | |
80 | //\r | |
81 | // UNDI command failed. Return EFI_DEVICE_ERROR\r | |
82 | // to caller.\r | |
83 | //\r | |
84 | DEBUG (\r | |
85 | (EFI_D_NET,\r | |
4cda7726 | 86 | "\nSnp->undi.mcast_ip_to_mac() %xh:%xh\n",\r |
87 | Snp->Cdb.StatFlags,\r | |
88 | Snp->Cdb.StatCode)\r | |
f9a088de | 89 | );\r |
90 | \r | |
91 | return EFI_DEVICE_ERROR;\r | |
92 | }\r | |
93 | \r | |
4cda7726 | 94 | CopyMem (MAC, &Db->MAC, sizeof (PXE_MAC_ADDR));\r |
f9a088de | 95 | return EFI_SUCCESS;\r |
96 | }\r | |
97 | \r | |
98 | \r | |
99 | /**\r | |
4cda7726 | 100 | Converts a multicast IP address to a multicast HW MAC address.\r |
101 | \r | |
102 | This function converts a multicast IP address to a multicast HW MAC address \r | |
103 | for all packet transactions. If the mapping is accepted, then EFI_SUCCESS will\r | |
104 | be returned.\r | |
105 | \r | |
106 | @param This A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL instance.\r | |
107 | @param IPv6 Set to TRUE if the multicast IP address is IPv6 [RFC 2460].\r | |
108 | Set to FALSE if the multicast IP address is IPv4 [RFC 791]. \r | |
109 | @param IP The multicast IP address that is to be converted to a multicast \r | |
110 | HW MAC address.\r | |
111 | @param MAC The multicast HW MAC address that is to be generated from IP.\r | |
112 | \r | |
113 | @retval EFI_SUCCESS The multicast IP address was mapped to the\r | |
114 | multicast HW MAC address.\r | |
115 | @retval EFI_NOT_STARTED The Simple Network Protocol interface has not \r | |
116 | been started by calling Start().\r | |
117 | @retval EFI_INVALID_PARAMETER IP is NULL.\r | |
118 | @retval EFI_INVALID_PARAMETER MAC is NULL.\r | |
119 | @retval EFI_INVALID_PARAMETER IP does not point to a valid IPv4 or IPv6 \r | |
120 | multicast address.\r | |
121 | @retval EFI_DEVICE_ERROR The Simple Network Protocol interface has not \r | |
122 | been initialized by calling Initialize().\r | |
123 | @retval EFI_UNSUPPORTED IPv6 is TRUE and the implementation does not \r | |
124 | support IPv6 multicast to MAC address conversion.\r | |
f9a088de | 125 | \r |
126 | **/\r | |
127 | EFI_STATUS\r | |
128 | EFIAPI\r | |
4cda7726 | 129 | SnpUndi32McastIpToMac (\r |
130 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
f9a088de | 131 | IN BOOLEAN IPv6,\r |
132 | IN EFI_IP_ADDRESS *IP,\r | |
133 | OUT EFI_MAC_ADDRESS *MAC\r | |
134 | )\r | |
135 | {\r | |
4cda7726 | 136 | SNP_DRIVER *Snp;\r |
f9a088de | 137 | EFI_TPL OldTpl;\r |
138 | EFI_STATUS Status;\r | |
139 | \r | |
140 | //\r | |
141 | // Get pointer to SNP driver instance for *this.\r | |
142 | //\r | |
4cda7726 | 143 | if (This == NULL) {\r |
f9a088de | 144 | return EFI_INVALID_PARAMETER;\r |
145 | }\r | |
146 | \r | |
147 | if (IP == NULL || MAC == NULL) {\r | |
148 | return EFI_INVALID_PARAMETER;\r | |
149 | }\r | |
150 | \r | |
4cda7726 | 151 | Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);\r |
f9a088de | 152 | \r |
153 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
154 | \r | |
4cda7726 | 155 | switch (Snp->Mode.State) {\r |
f9a088de | 156 | case EfiSimpleNetworkInitialized:\r |
157 | break;\r | |
158 | \r | |
159 | case EfiSimpleNetworkStopped:\r | |
160 | Status = EFI_NOT_STARTED;\r | |
161 | goto ON_EXIT;\r | |
162 | \r | |
163 | default:\r | |
164 | Status = EFI_DEVICE_ERROR;\r | |
165 | goto ON_EXIT;\r | |
166 | }\r | |
167 | \r | |
4cda7726 | 168 | Status = PxeIp2Mac (Snp, IPv6, IP, MAC);\r |
f9a088de | 169 | \r |
170 | ON_EXIT:\r | |
171 | gBS->RestoreTPL (OldTpl);\r | |
172 | \r | |
173 | return Status;\r | |
174 | }\r |