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d7ce7006 | 1 | /** @file\r |
2 | Implement the connection to the socket driver\r | |
3 | \r | |
4 | Copyright (c) 2011, Intel Corporation\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <Uefi.h>\r | |
16 | \r | |
17 | #include <Library/DebugLib.h>\r | |
18 | #include <Library/UefiBootServicesTableLib.h>\r | |
19 | #include <Library/UefiLib.h>\r | |
20 | \r | |
21 | #include <Protocol/EfiSocket.h>\r | |
22 | #include <Protocol/ServiceBinding.h>\r | |
23 | \r | |
24 | \r | |
4652be0c | 25 | /**\r |
26 | Free the socket resources\r | |
27 | \r | |
28 | This releases the socket resources allocated by calling\r | |
29 | EslServiceGetProtocol.\r | |
30 | \r | |
31 | This routine is called from the ::close routine in BsdSocketLib\r | |
32 | to release the socket resources.\r | |
33 | \r | |
34 | @param [in] pSocketProtocol Address of an ::EFI_SOCKET_PROTOCOL\r | |
35 | structure\r | |
36 | \r | |
37 | @return Value for ::errno, zero (0) indicates success.\r | |
38 | \r | |
39 | **/\r | |
40 | int\r | |
41 | EslServiceFreeProtocol (\r | |
42 | IN EFI_SOCKET_PROTOCOL * pSocketProtocol\r | |
43 | )\r | |
44 | {\r | |
45 | EFI_SERVICE_BINDING_PROTOCOL * pServiceBinding;\r | |
46 | int RetVal;\r | |
47 | EFI_STATUS Status;\r | |
48 | \r | |
49 | //\r | |
50 | // Assume success\r | |
51 | //\r | |
52 | RetVal = 0;\r | |
53 | \r | |
54 | //\r | |
55 | // Locate the socket protocol\r | |
56 | //\r | |
57 | Status = gBS->LocateProtocol ( &gEfiSocketServiceBindingProtocolGuid,\r | |
58 | NULL,\r | |
59 | (VOID **) &pServiceBinding );\r | |
60 | if ( !EFI_ERROR ( Status )) {\r | |
61 | //\r | |
62 | // Release the handle\r | |
63 | //\r | |
64 | Status = pServiceBinding->DestroyChild ( pServiceBinding,\r | |
65 | pSocketProtocol->SocketHandle );\r | |
66 | }\r | |
67 | if ( EFI_ERROR ( Status )) {\r | |
68 | RetVal = EIO;\r | |
69 | }\r | |
70 | \r | |
71 | //\r | |
72 | // Return the operation status\r | |
73 | //\r | |
74 | return RetVal;\r | |
75 | }\r | |
76 | \r | |
77 | \r | |
d7ce7006 | 78 | /**\r |
a88c3163 | 79 | Connect to the EFI socket library\r |
d7ce7006 | 80 | \r |
a88c3163 | 81 | This routine establishes a connection to the socket driver\r |
82 | and returns the API (::EFI_SOCKET_PROTOCOL address) to the\r | |
83 | socket file system layer in BsdSocketLib. This routine looks for\r | |
84 | the gEfiSocketServiceBindingProtocolGuid to locate the socket\r | |
85 | driver. This routine then creates a child handle and locates\r | |
86 | the gEfiSocketProtocolGuid protocol on that handle to get the\r | |
87 | ::EFI_SOCKET_PROTOCOL structure address.\r | |
88 | \r | |
89 | This routine is called from the ::socket routine in BsdSocketLib\r | |
90 | to create the data structure and initialize the API for a socket.\r | |
91 | Note that this implementation is only used by socket applications\r | |
92 | that link directly to UseSocketDxe.\r | |
93 | \r | |
94 | @param [in] ppSocketProtocol Address to receive the ::EFI_SOCKET_PROTOCOL\r | |
95 | structure address\r | |
96 | \r | |
97 | @return Value for ::errno, zero (0) indicates success.\r | |
d7ce7006 | 98 | \r |
d7ce7006 | 99 | **/\r |
100 | int\r | |
101 | EslServiceGetProtocol (\r | |
102 | IN EFI_SOCKET_PROTOCOL ** ppSocketProtocol\r | |
103 | )\r | |
104 | {\r | |
105 | EFI_SERVICE_BINDING_PROTOCOL * pServiceBinding;\r | |
106 | int RetVal;\r | |
107 | EFI_HANDLE SocketHandle;\r | |
108 | EFI_STATUS Status;\r | |
109 | \r | |
110 | //\r | |
111 | // Locate the socket protocol\r | |
112 | //\r | |
113 | Status = gBS->LocateProtocol ( &gEfiSocketServiceBindingProtocolGuid,\r | |
114 | NULL,\r | |
115 | (VOID **)&pServiceBinding );\r | |
116 | if ( !EFI_ERROR ( Status )) {\r | |
117 | //\r | |
118 | // Create a new socket\r | |
119 | //\r | |
120 | SocketHandle = NULL;\r | |
121 | Status = pServiceBinding->CreateChild ( pServiceBinding,\r | |
122 | &SocketHandle );\r | |
123 | if ( !EFI_ERROR ( Status )) {\r | |
124 | //\r | |
125 | // Get the socket protocol\r | |
126 | //\r | |
127 | Status = gBS->OpenProtocol ( SocketHandle,\r | |
128 | &gEfiSocketProtocolGuid,\r | |
129 | (VOID **)ppSocketProtocol,\r | |
130 | NULL,\r | |
131 | NULL,\r | |
132 | EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL );\r | |
133 | if ( !EFI_ERROR ( Status )) {\r | |
134 | //\r | |
135 | // Success!\r | |
136 | //\r | |
137 | RetVal = 0;\r | |
138 | }\r | |
139 | else {\r | |
140 | DEBUG (( DEBUG_ERROR,\r | |
141 | "ERROR - No socket protocol on 0x%08x, Status: %r\r\n",\r | |
142 | SocketHandle,\r | |
143 | Status ));\r | |
144 | RetVal = ENODEV;\r | |
145 | }\r | |
146 | }\r | |
147 | else {\r | |
148 | //\r | |
149 | // Translate the error\r | |
150 | //\r | |
151 | DEBUG (( DEBUG_ERROR,\r | |
152 | "ERROR - CreateChild failed, Status: %r\r\n",\r | |
153 | Status ));\r | |
154 | switch ( Status ) {\r | |
155 | case EFI_SUCCESS:\r | |
156 | RetVal = 0;\r | |
157 | break;\r | |
158 | \r | |
159 | case EFI_ACCESS_DENIED:\r | |
160 | case EFI_WRITE_PROTECTED:\r | |
161 | RetVal = EACCES;\r | |
162 | break;\r | |
163 | \r | |
164 | case EFI_NO_RESPONSE:\r | |
165 | RetVal = EHOSTUNREACH;\r | |
166 | break;\r | |
167 | \r | |
168 | case EFI_BAD_BUFFER_SIZE:\r | |
169 | case EFI_BUFFER_TOO_SMALL:\r | |
170 | case EFI_INVALID_PARAMETER:\r | |
171 | RetVal = EINVAL;\r | |
172 | break;\r | |
173 | \r | |
174 | case EFI_DEVICE_ERROR:\r | |
175 | case EFI_MEDIA_CHANGED:\r | |
176 | case EFI_NO_MEDIA:\r | |
177 | case EFI_VOLUME_CORRUPTED:\r | |
178 | RetVal = EIO;\r | |
179 | break;\r | |
180 | \r | |
181 | case EFI_NOT_FOUND:\r | |
182 | RetVal = ENOENT;\r | |
183 | break;\r | |
184 | \r | |
185 | default:\r | |
186 | case EFI_OUT_OF_RESOURCES:\r | |
187 | RetVal = ENOMEM;\r | |
188 | break;\r | |
189 | \r | |
190 | case EFI_VOLUME_FULL:\r | |
191 | RetVal = ENOSPC;\r | |
192 | break;\r | |
193 | \r | |
194 | case EFI_UNSUPPORTED:\r | |
195 | RetVal = ENOSYS;\r | |
196 | break;\r | |
197 | \r | |
198 | case EFI_NO_MAPPING:\r | |
199 | RetVal = ENXIO;\r | |
200 | break;\r | |
201 | \r | |
202 | case EFI_LOAD_ERROR:\r | |
203 | RetVal = ESRCH;\r | |
204 | break;\r | |
205 | \r | |
206 | case EFI_TIMEOUT:\r | |
207 | RetVal = ETIMEDOUT;\r | |
208 | break;\r | |
209 | \r | |
210 | case EFI_NOT_READY:\r | |
211 | RetVal = EWOULDBLOCK;\r | |
212 | break;\r | |
213 | }\r | |
214 | }\r | |
215 | }\r | |
216 | else {\r | |
217 | DEBUG (( DEBUG_ERROR,\r | |
a88c3163 | 218 | "ERROR - Socket driver not loaded, Status: %r\r\n",\r |
d7ce7006 | 219 | Status ));\r |
220 | RetVal = ENODEV;\r | |
221 | }\r | |
222 | \r | |
223 | //\r | |
224 | // Return the operation status\r | |
225 | //\r | |
226 | return RetVal;\r | |
227 | }\r |