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97b38d4e | 1 | /** @file\r |
e9b67286 | 2 | This library is used to share code between UEFI network stack modules.\r |
e4b99ad9 | 3 | It provides the helper routines to access UDP service. It is used by both DHCP and MTFTP.\r |
97b38d4e | 4 | \r |
6d88babb | 5 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
97b38d4e | 7 | \r |
8 | **/\r | |
9 | \r | |
b45b45b2 | 10 | #ifndef _UDP_IO_H_\r |
11 | #define _UDP_IO_H_\r | |
97b38d4e | 12 | \r |
13 | #include <Protocol/Udp4.h>\r | |
b45b45b2 | 14 | #include <Protocol/Udp6.h>\r |
97b38d4e | 15 | \r |
97b38d4e | 16 | #include <Library/NetLib.h>\r |
17 | \r | |
b45b45b2 | 18 | typedef struct _UDP_IO UDP_IO;\r |
97b38d4e | 19 | \r |
cab450cc | 20 | ///\r |
21 | /// Signatures used by UdpIo Library.\r | |
22 | ///\r | |
b45b45b2 | 23 | \r |
24 | #define UDP_IO_RX_SIGNATURE SIGNATURE_32 ('U', 'D', 'P', 'R')\r | |
25 | #define UDP_IO_TX_SIGNATURE SIGNATURE_32 ('U', 'D', 'P', 'T')\r | |
26 | #define UDP_IO_SIGNATURE SIGNATURE_32 ('U', 'D', 'P', 'I')\r | |
27 | \r | |
28 | #define UDP_IO_UDP4_VERSION 4\r | |
29 | #define UDP_IO_UDP6_VERSION 6\r | |
97b38d4e | 30 | \r |
cab450cc | 31 | ///\r |
b45b45b2 | 32 | /// The UDP address pair.\r |
cab450cc | 33 | ///\r |
97b38d4e | 34 | typedef struct {\r |
b45b45b2 | 35 | EFI_IP_ADDRESS LocalAddr;\r |
97b38d4e | 36 | UINT16 LocalPort;\r |
b45b45b2 | 37 | EFI_IP_ADDRESS RemoteAddr;\r |
97b38d4e | 38 | UINT16 RemotePort;\r |
b45b45b2 | 39 | } UDP_END_POINT;\r |
97b38d4e | 40 | \r |
cab450cc | 41 | /**\r |
e9b67286 | 42 | Prototype called when receiving or sending packets to or from a UDP point.\r |
cab450cc | 43 | \r |
44 | This prototype is used by both receive and sending when calling\r | |
e9b67286 | 45 | UdpIoRecvDatagram() or UdpIoSendDatagram(). When receiving, Netbuf is allocated by the\r |
6deb4baa | 46 | UDP access point and released by the user. When sending, the user allocates the NetBuf,\r |
64a80549 | 47 | which is then provided to the callback as a reference.\r |
48 | \r | |
49 | @param[in] Packet The packet received or sent.\r | |
50 | @param[in] EndPoint The UDP address pair corresponds to the UDP IO.\r | |
51 | @param[in] IoStatus The packet receiving or sending status.\r | |
52 | @param[in] Context The user-defined data when calling UdpIoRecvDatagram() or\r | |
53 | UdpIoSendDatagram().\r | |
cab450cc | 54 | **/\r |
97b38d4e | 55 | typedef\r |
56 | VOID\r | |
e798cd87 | 57 | (EFIAPI *UDP_IO_CALLBACK) (\r |
97b38d4e | 58 | IN NET_BUF *Packet,\r |
b45b45b2 | 59 | IN UDP_END_POINT *EndPoint,\r |
97b38d4e | 60 | IN EFI_STATUS IoStatus,\r |
61 | IN VOID *Context\r | |
62 | );\r | |
63 | \r | |
cab450cc | 64 | ///\r |
e9b67286 | 65 | /// This structure is used internally by the UdpIo Library.\r |
cab450cc | 66 | ///\r |
67 | /// Each receive request is wrapped in an UDP_RX_TOKEN. Upon completion,\r | |
68 | /// the CallBack will be called. Only one receive request is sent to UDP at a\r | |
69 | /// time. HeadLen gives the length of the application's header. UDP_IO will\r | |
70 | /// make the application's header continuous before delivering up.\r | |
71 | ///\r | |
b45b45b2 | 72 | typedef union {\r |
73 | EFI_UDP4_COMPLETION_TOKEN Udp4;\r | |
74 | EFI_UDP6_COMPLETION_TOKEN Udp6;\r | |
75 | } UDP_COMPLETION_TOKEN;\r | |
76 | \r | |
97b38d4e | 77 | typedef struct {\r |
b45b45b2 | 78 | UINT32 Signature;\r |
79 | UDP_IO *UdpIo;\r | |
97b38d4e | 80 | \r |
b45b45b2 | 81 | UDP_IO_CALLBACK CallBack;\r |
82 | VOID *Context;\r | |
83 | UINT32 HeadLen;\r | |
97b38d4e | 84 | \r |
b45b45b2 | 85 | UDP_COMPLETION_TOKEN Token;\r |
97b38d4e | 86 | } UDP_RX_TOKEN;\r |
87 | \r | |
b45b45b2 | 88 | \r |
89 | \r | |
cab450cc | 90 | ///\r |
91 | /// This structure is used internally by UdpIo Library.\r | |
92 | ///\r | |
93 | /// Each transmit request is wrapped in an UDP_TX_TOKEN. Upon completion,\r | |
d1102dba | 94 | /// the CallBack will be called. There can be several transmit requests. All transmit\r |
64a80549 | 95 | /// requests are linked in a list.\r |
cab450cc | 96 | ///\r |
97b38d4e | 97 | \r |
b45b45b2 | 98 | typedef union {\r |
99 | EFI_UDP4_SESSION_DATA Udp4;\r | |
100 | EFI_UDP6_SESSION_DATA Udp6;\r | |
101 | } UDP_SESSION_DATA;\r | |
97b38d4e | 102 | \r |
b45b45b2 | 103 | typedef union {\r |
104 | EFI_UDP4_TRANSMIT_DATA Udp4;\r | |
105 | EFI_UDP6_TRANSMIT_DATA Udp6;\r | |
106 | } UDP_TRANSMIT_DATA;\r | |
97b38d4e | 107 | \r |
b45b45b2 | 108 | typedef struct {\r |
109 | UINT32 Signature;\r | |
110 | LIST_ENTRY Link;\r | |
111 | UDP_IO *UdpIo;\r | |
112 | UDP_IO_CALLBACK CallBack;\r | |
113 | NET_BUF *Packet;\r | |
114 | VOID *Context;\r | |
115 | EFI_IPv4_ADDRESS Gateway;\r | |
116 | UDP_SESSION_DATA Session;\r | |
117 | UDP_COMPLETION_TOKEN Token;\r | |
118 | UDP_TRANSMIT_DATA Data;\r | |
97b38d4e | 119 | } UDP_TX_TOKEN;\r |
120 | \r | |
cab450cc | 121 | ///\r |
b45b45b2 | 122 | /// Type defined as UDP_IO.\r |
cab450cc | 123 | ///\r |
e2851998 | 124 | /// This data structure wraps the UDP instance and configuration.\r |
b45b45b2 | 125 | /// UdpIo Library uses this structure for all Udp4 or Udp6 operations.\r |
cab450cc | 126 | ///\r |
b45b45b2 | 127 | struct _UDP_IO {\r |
97b38d4e | 128 | UINT32 Signature;\r |
129 | LIST_ENTRY Link;\r | |
130 | INTN RefCnt;\r | |
b45b45b2 | 131 | UINT8 UdpVersion;\r |
97b38d4e | 132 | \r |
133 | //\r | |
75dce340 | 134 | // Handle used to create/destroy UDP child\r |
97b38d4e | 135 | //\r |
136 | EFI_HANDLE Controller;\r | |
137 | EFI_HANDLE Image;\r | |
138 | EFI_HANDLE UdpHandle;\r | |
139 | \r | |
97b38d4e | 140 | EFI_SIMPLE_NETWORK_MODE SnpMode;\r |
141 | \r | |
cab450cc | 142 | LIST_ENTRY SentDatagram; ///< A list of UDP_TX_TOKEN.\r |
97b38d4e | 143 | UDP_RX_TOKEN *RecvRequest;\r |
b45b45b2 | 144 | \r |
145 | union {\r | |
146 | EFI_UDP4_PROTOCOL *Udp4;\r | |
147 | EFI_UDP6_PROTOCOL *Udp6;\r | |
e2851998 | 148 | } Protocol;\r |
b45b45b2 | 149 | \r |
150 | union {\r | |
151 | EFI_UDP4_CONFIG_DATA Udp4;\r | |
152 | EFI_UDP6_CONFIG_DATA Udp6;\r | |
153 | } Config;\r | |
97b38d4e | 154 | };\r |
155 | \r | |
cab450cc | 156 | /**\r |
64a80549 | 157 | The prototype called when UdpIo Library configures a UDP instance.\r |
e2851998 | 158 | \r |
b45b45b2 | 159 | The prototype is set and called when creating a UDP_IO in UdpIoCreatePort().\r |
e2851998 | 160 | \r |
64a80549 | 161 | @param[in] UdpIo The UDP_IO to configure.\r |
162 | @param[in] Context The user-defined data when calling UdpIoCreatePort().\r | |
e2851998 | 163 | \r |
64a80549 | 164 | @retval EFI_SUCCESS The configuration succeeded.\r |
b45b45b2 | 165 | @retval Others The UDP_IO fails to configure indicating\r |
64a80549 | 166 | UdpIoCreatePort() should fail.\r |
cab450cc | 167 | **/\r |
97b38d4e | 168 | typedef\r |
169 | EFI_STATUS\r | |
e798cd87 | 170 | (EFIAPI *UDP_IO_CONFIG) (\r |
b45b45b2 | 171 | IN UDP_IO *UdpIo,\r |
97b38d4e | 172 | IN VOID *Context\r |
173 | );\r | |
174 | \r | |
cab450cc | 175 | /**\r |
e2851998 | 176 | The select function to decide whether to cancel the UDP_TX_TOKEN.\r |
177 | \r | |
64a80549 | 178 | @param[in] Token The UDP_TX_TOKEN to decide whether to cancel.\r |
179 | @param[in] Context User-defined data in UdpIoCancelDgrams().\r | |
e2851998 | 180 | \r |
64a80549 | 181 | @retval TRUE Cancel the UDP_TX_TOKEN.\r |
182 | @retval FALSE Do not cancel this UDP_TX_TOKEN.\r | |
cab450cc | 183 | \r |
184 | **/\r | |
97b38d4e | 185 | typedef\r |
186 | BOOLEAN\r | |
e798cd87 | 187 | (EFIAPI *UDP_IO_TO_CANCEL) (\r |
97b38d4e | 188 | IN UDP_TX_TOKEN *Token,\r |
189 | IN VOID *Context\r | |
190 | );\r | |
191 | \r | |
e4b99ad9 | 192 | /**\r |
e2851998 | 193 | Cancel all the sent datagram that pass the selection criteria of ToCancel.\r |
6d88babb | 194 | \r |
e4b99ad9 | 195 | If ToCancel is NULL, all the datagrams are cancelled.\r |
6d88babb | 196 | If Udp version is not UDP_IO_UDP4_VERSION or UDP_IO_UDP6_VERSION, then ASSERT().\r |
e4b99ad9 | 197 | \r |
b45b45b2 | 198 | @param[in] UdpIo The UDP_IO to cancel packet.\r |
e4b99ad9 | 199 | @param[in] IoStatus The IoStatus to return to the packet owners.\r |
6deb4baa | 200 | @param[in] ToCancel The select function to test whether to cancel this\r |
e2851998 | 201 | packet or not.\r |
e4b99ad9 LG |
202 | @param[in] Context The opaque parameter to the ToCancel.\r |
203 | \r | |
204 | **/\r | |
205 | VOID\r | |
206 | EFIAPI\r | |
207 | UdpIoCancelDgrams (\r | |
b45b45b2 | 208 | IN UDP_IO *UdpIo,\r |
e4b99ad9 | 209 | IN EFI_STATUS IoStatus,\r |
e2851998 | 210 | IN UDP_IO_TO_CANCEL ToCancel, OPTIONAL\r |
6d88babb | 211 | IN VOID *Context OPTIONAL\r |
e4b99ad9 LG |
212 | );\r |
213 | \r | |
97b38d4e | 214 | /**\r |
b45b45b2 | 215 | Creates a UDP_IO to access the UDP service. It creates and configures\r |
cab450cc | 216 | a UDP child.\r |
e2851998 | 217 | \r |
6d88babb WF |
218 | If Configure is NULL, then ASSERT().\r |
219 | If Udp version is not UDP_IO_UDP4_VERSION or UDP_IO_UDP6_VERSION, then ASSERT().\r | |
220 | \r | |
e2851998 | 221 | It locates the UDP service binding prototype on the Controller parameter\r |
222 | uses the UDP service binding prototype to create a UDP child (also known as\r | |
223 | a UDP instance) configures the UDP child by calling Configure function prototype.\r | |
224 | Any failures in creating or configuring the UDP child return NULL for failure.\r | |
97b38d4e | 225 | \r |
3a1ab4bc | 226 | @param[in] Controller The controller that has the UDP service binding.\r |
227 | protocol installed.\r | |
b45b45b2 | 228 | @param[in] ImageHandle The image handle for the driver.\r |
3a1ab4bc | 229 | @param[in] Configure The function to configure the created UDP child.\r |
b45b45b2 | 230 | @param[in] UdpVersion The UDP protocol version, UDP4 or UDP6.\r |
6deb4baa | 231 | @param[in] Context The opaque parameter for the Configure function.\r |
97b38d4e | 232 | \r |
64a80549 | 233 | @return The newly-created UDP_IO, or NULL if failed.\r |
97b38d4e | 234 | \r |
235 | **/\r | |
b45b45b2 | 236 | UDP_IO *\r |
97b38d4e | 237 | EFIAPI\r |
b45b45b2 | 238 | UdpIoCreateIo (\r |
97b38d4e | 239 | IN EFI_HANDLE Controller,\r |
b45b45b2 | 240 | IN EFI_HANDLE ImageHandle,\r |
97b38d4e | 241 | IN UDP_IO_CONFIG Configure,\r |
b45b45b2 | 242 | IN UINT8 UdpVersion,\r |
97b38d4e | 243 | IN VOID *Context\r |
244 | );\r | |
245 | \r | |
246 | /**\r | |
b45b45b2 | 247 | Free the UDP_IO and all its related resources.\r |
e2851998 | 248 | \r |
6d88babb WF |
249 | If Udp version is not UDP_IO_UDP4_VERSION or UDP_IO_UDP6_VERSION, then ASSERT().\r |
250 | \r | |
e9b67286 | 251 | The function cancels all sent datagrams and receive requests.\r |
97b38d4e | 252 | \r |
b45b45b2 | 253 | @param[in] UdpIo The UDP_IO to free.\r |
97b38d4e | 254 | \r |
b45b45b2 | 255 | @retval EFI_SUCCESS The UDP_IO is freed.\r |
6d88babb | 256 | @retval Others Failed to free UDP_IO.\r |
97b38d4e | 257 | \r |
258 | **/\r | |
259 | EFI_STATUS\r | |
260 | EFIAPI\r | |
b45b45b2 | 261 | UdpIoFreeIo (\r |
262 | IN UDP_IO *UdpIo\r | |
97b38d4e | 263 | );\r |
264 | \r | |
265 | /**\r | |
e2851998 | 266 | Cleans up the UDP_IO without freeing it. Call this function\r |
b45b45b2 | 267 | if you intend to later re-use the UDP_IO.\r |
e2851998 | 268 | \r |
6d88babb WF |
269 | If Udp version is not UDP_IO_UDP4_VERSION or UDP_IO_UDP6_VERSION, then ASSERT().\r |
270 | \r | |
e9b67286 | 271 | This function releases all transmitted datagrams and receive requests and configures NULL for the UDP instance.\r |
97b38d4e | 272 | \r |
b45b45b2 | 273 | @param[in] UdpIo The UDP_IO to clean up.\r |
97b38d4e | 274 | \r |
97b38d4e | 275 | **/\r |
276 | VOID\r | |
277 | EFIAPI\r | |
b45b45b2 | 278 | UdpIoCleanIo (\r |
279 | IN UDP_IO *UdpIo\r | |
97b38d4e | 280 | );\r |
281 | \r | |
282 | /**\r | |
b45b45b2 | 283 | Send a packet through the UDP_IO.\r |
e2851998 | 284 | \r |
6d88babb WF |
285 | If Udp version is not UDP_IO_UDP4_VERSION or UDP_IO_UDP6_VERSION, then ASSERT().\r |
286 | \r | |
b45b45b2 | 287 | The packet will be wrapped in UDP_TX_TOKEN. Function Callback will be called\r |
288 | when the packet is sent. The optional parameter EndPoint overrides the default\r | |
289 | address pair if specified.\r | |
97b38d4e | 290 | \r |
b45b45b2 | 291 | @param[in] UdpIo The UDP_IO to send the packet through.\r |
3a1ab4bc | 292 | @param[in] Packet The packet to send.\r |
b45b45b2 | 293 | @param[in] EndPoint The local and remote access point. Override the\r |
3a1ab4bc | 294 | default address pair set during configuration.\r |
e2851998 | 295 | @param[in] Gateway The gateway to use.\r |
3a1ab4bc | 296 | @param[in] CallBack The function being called when packet is\r |
297 | transmitted or failed.\r | |
298 | @param[in] Context The opaque parameter passed to CallBack.\r | |
97b38d4e | 299 | \r |
3a1ab4bc | 300 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resource for the packet.\r |
64a80549 | 301 | @retval EFI_SUCCESS The packet is successfully delivered to UDP for\r |
97b38d4e | 302 | transmission.\r |
303 | \r | |
304 | **/\r | |
305 | EFI_STATUS\r | |
306 | EFIAPI\r | |
307 | UdpIoSendDatagram (\r | |
b45b45b2 | 308 | IN UDP_IO *UdpIo,\r |
97b38d4e | 309 | IN NET_BUF *Packet,\r |
b45b45b2 | 310 | IN UDP_END_POINT *EndPoint OPTIONAL,\r |
311 | IN EFI_IP_ADDRESS *Gateway OPTIONAL,\r | |
97b38d4e | 312 | IN UDP_IO_CALLBACK CallBack,\r |
313 | IN VOID *Context\r | |
314 | );\r | |
315 | \r | |
316 | /**\r | |
317 | Cancel a single sent datagram.\r | |
318 | \r | |
e2851998 | 319 | @param[in] UdpIo The UDP_IO from which to cancel the packet\r |
3a1ab4bc | 320 | @param[in] Packet The packet to cancel\r |
97b38d4e | 321 | \r |
97b38d4e | 322 | **/\r |
323 | VOID\r | |
324 | EFIAPI\r | |
325 | UdpIoCancelSentDatagram (\r | |
b45b45b2 | 326 | IN UDP_IO *UdpIo,\r |
97b38d4e | 327 | IN NET_BUF *Packet\r |
328 | );\r | |
329 | \r | |
330 | /**\r | |
b45b45b2 | 331 | Issue a receive request to the UDP_IO.\r |
e2851998 | 332 | \r |
6d88babb WF |
333 | If Udp version is not UDP_IO_UDP4_VERSION or UDP_IO_UDP6_VERSION, then ASSERT().\r |
334 | \r | |
cab450cc | 335 | This function is called when upper-layer needs packet from UDP for processing.\r |
e9b67286 | 336 | Only one receive request is acceptable at a time. Therefore, one common usage model is\r |
cab450cc | 337 | to invoke this function inside its Callback function when the former packet\r |
338 | is processed.\r | |
339 | \r | |
b45b45b2 | 340 | @param[in] UdpIo The UDP_IO to receive the packet from.\r |
3a1ab4bc | 341 | @param[in] CallBack The call back function to execute when the packet\r |
342 | is received.\r | |
343 | @param[in] Context The opaque context passed to Callback.\r | |
b45b45b2 | 344 | @param[in] HeadLen The length of the upper-layer's protocol header.\r |
97b38d4e | 345 | \r |
346 | @retval EFI_ALREADY_STARTED There is already a pending receive request. Only\r | |
cab450cc | 347 | one receive request is supported at a time.\r |
348 | @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r | |
64a80549 | 349 | @retval EFI_SUCCESS The receive request was issued successfully.\r |
b45b45b2 | 350 | @retval EFI_UNSUPPORTED The UDP version in UDP_IO is not supported.\r |
97b38d4e | 351 | \r |
352 | **/\r | |
353 | EFI_STATUS\r | |
354 | EFIAPI\r | |
355 | UdpIoRecvDatagram (\r | |
b45b45b2 | 356 | IN UDP_IO *UdpIo,\r |
97b38d4e | 357 | IN UDP_IO_CALLBACK CallBack,\r |
358 | IN VOID *Context,\r | |
359 | IN UINT32 HeadLen\r | |
360 | );\r | |
b45b45b2 | 361 | \r |
97b38d4e | 362 | #endif\r |
b45b45b2 | 363 | \r |