1 /* 2 * Copyright (c) 2001 Doug Rabson 3 * Copyright (c) 2002, 2006 Marcel Moolenaar 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 30 #include <sys/param.h> 31 #include <net/ethernet.h> 32 #include <netinet/in.h> 33 #include <netinet/in_systm.h> 34 35 #include <stand.h> 36 #include <net.h> 37 #include <netif.h> 38 39 #include <efi.h> 40 #include <efilib.h> 41 42 static EFI_GUID sn_guid = EFI_SIMPLE_NETWORK_PROTOCOL; 43 44 static void efinet_end(struct netif *); 45 static ssize_t efinet_get(struct iodesc *, void **, time_t); 46 static void efinet_init(struct iodesc *, void *); 47 static int efinet_match(struct netif *, void *); 48 static int efinet_probe(struct netif *, void *); 49 static ssize_t efinet_put(struct iodesc *, void *, size_t); 50 51 struct netif_driver efinetif = { 52 .netif_bname = "efinet", 53 .netif_match = efinet_match, 54 .netif_probe = efinet_probe, 55 .netif_init = efinet_init, 56 .netif_get = efinet_get, 57 .netif_put = efinet_put, 58 .netif_end = efinet_end, 59 .netif_ifs = NULL, 60 .netif_nifs = 0 61 }; 62 63 #ifdef EFINET_DEBUG 64 static void 65 dump_mode(EFI_SIMPLE_NETWORK_MODE *mode) 66 { 67 int i; 68 69 printf("State = %x\n", mode->State); 70 printf("HwAddressSize = %u\n", mode->HwAddressSize); 71 printf("MediaHeaderSize = %u\n", mode->MediaHeaderSize); 72 printf("MaxPacketSize = %u\n", mode->MaxPacketSize); 73 printf("NvRamSize = %u\n", mode->NvRamSize); 74 printf("NvRamAccessSize = %u\n", mode->NvRamAccessSize); 75 printf("ReceiveFilterMask = %x\n", mode->ReceiveFilterMask); 76 printf("ReceiveFilterSetting = %u\n", mode->ReceiveFilterSetting); 77 printf("MaxMCastFilterCount = %u\n", mode->MaxMCastFilterCount); 78 printf("MCastFilterCount = %u\n", mode->MCastFilterCount); 79 printf("MCastFilter = {"); 80 for (i = 0; i < mode->MCastFilterCount; i++) 81 printf(" %s", ether_sprintf(mode->MCastFilter[i].Addr)); 82 printf(" }\n"); 83 printf("CurrentAddress = %s\n", 84 ether_sprintf(mode->CurrentAddress.Addr)); 85 printf("BroadcastAddress = %s\n", 86 ether_sprintf(mode->BroadcastAddress.Addr)); 87 printf("PermanentAddress = %s\n", 88 ether_sprintf(mode->PermanentAddress.Addr)); 89 printf("IfType = %u\n", mode->IfType); 90 printf("MacAddressChangeable = %d\n", mode->MacAddressChangeable); 91 printf("MultipleTxSupported = %d\n", mode->MultipleTxSupported); 92 printf("MediaPresentSupported = %d\n", mode->MediaPresentSupported); 93 printf("MediaPresent = %d\n", mode->MediaPresent); 94 } 95 #endif 96 97 static int 98 efinet_match(struct netif *nif, void *machdep_hint) 99 { 100 struct devdesc *dev = machdep_hint; 101 102 if (dev->d_unit == nif->nif_unit) 103 return (1); 104 return (0); 105 } 106 107 static int 108 efinet_probe(struct netif *nif, void *machdep_hint __unused) 109 { 110 EFI_SIMPLE_NETWORK *net; 111 EFI_HANDLE h; 112 EFI_STATUS status; 113 114 h = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private; 115 116 /* 117 * Open the network device in exclusive mode. Without this 118 * we will be racing with the UEFI network stack. It will 119 * pull packets off the network leading to lost packets. 120 */ 121 status = BS->OpenProtocol(h, &sn_guid, (void **)&net, 122 IH, NULL, EFI_OPEN_PROTOCOL_EXCLUSIVE); 123 if (status != EFI_SUCCESS) { 124 printf("Unable to open network interface %d for " 125 "exclusive access: %lu\n", nif->nif_unit, 126 EFI_ERROR_CODE(status)); 127 } 128 129 return (0); 130 } 131 132 static ssize_t 133 efinet_put(struct iodesc *desc, void *pkt, size_t len) 134 { 135 struct netif *nif = desc->io_netif; 136 EFI_SIMPLE_NETWORK *net; 137 EFI_STATUS status; 138 void *buf; 139 140 net = nif->nif_devdata; 141 if (net == NULL) 142 return (-1); 143 144 status = net->Transmit(net, 0, len, pkt, NULL, NULL, NULL); 145 if (status != EFI_SUCCESS) 146 return (-1); 147 148 /* Wait for the buffer to be transmitted */ 149 do { 150 buf = NULL; /* XXX Is this needed? */ 151 status = net->GetStatus(net, NULL, &buf); 152 /* 153 * XXX EFI1.1 and the E1000 card returns a different 154 * address than we gave. Sigh. 155 */ 156 } while (status == EFI_SUCCESS && buf == NULL); 157 158 /* XXX How do we deal with status != EFI_SUCCESS now? */ 159 return ((status == EFI_SUCCESS) ? len : -1); 160 } 161 162 static ssize_t 163 efinet_get(struct iodesc *desc, void **pkt, time_t timeout) 164 { 165 struct netif *nif = desc->io_netif; 166 EFI_SIMPLE_NETWORK *net; 167 EFI_STATUS status; 168 UINTN bufsz; 169 time_t t; 170 char *buf, *ptr; 171 ssize_t ret = -1; 172 173 net = nif->nif_devdata; 174 if (net == NULL) 175 return (ret); 176 177 bufsz = net->Mode->MaxPacketSize + ETHER_HDR_LEN + ETHER_CRC_LEN; 178 buf = malloc(bufsz + ETHER_ALIGN); 179 if (buf == NULL) 180 return (ret); 181 ptr = buf + ETHER_ALIGN; 182 183 t = getsecs(); 184 while ((getsecs() - t) < timeout) { 185 status = net->Receive(net, NULL, &bufsz, ptr, NULL, NULL, NULL); 186 if (status == EFI_SUCCESS) { 187 *pkt = buf; 188 ret = (ssize_t)bufsz; 189 break; 190 } 191 if (status != EFI_NOT_READY) 192 break; 193 } 194 195 if (ret == -1) 196 free(buf); 197 return (ret); 198 } 199 200 static void 201 efinet_init(struct iodesc *desc, void *machdep_hint __unused) 202 { 203 struct netif *nif = desc->io_netif; 204 EFI_SIMPLE_NETWORK *net; 205 EFI_HANDLE h; 206 EFI_STATUS status; 207 UINT32 mask; 208 209 if (nif->nif_driver->netif_ifs[nif->nif_unit].dif_unit < 0) { 210 printf("Invalid network interface %d\n", nif->nif_unit); 211 return; 212 } 213 214 h = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private; 215 status = OpenProtocolByHandle(h, &sn_guid, (void **)&nif->nif_devdata); 216 if (status != EFI_SUCCESS) { 217 printf("net%d: cannot fetch interface data (status=%lu)\n", 218 nif->nif_unit, EFI_ERROR_CODE(status)); 219 return; 220 } 221 222 net = nif->nif_devdata; 223 if (net->Mode->State == EfiSimpleNetworkStopped) { 224 status = net->Start(net); 225 if (status != EFI_SUCCESS) { 226 printf("net%d: cannot start interface (status=%lu)\n", 227 nif->nif_unit, EFI_ERROR_CODE(status)); 228 return; 229 } 230 } 231 232 if (net->Mode->State != EfiSimpleNetworkInitialized) { 233 status = net->Initialize(net, 0, 0); 234 if (status != EFI_SUCCESS) { 235 printf("net%d: cannot init. interface (status=%lu)\n", 236 nif->nif_unit, EFI_ERROR_CODE(status)); 237 return; 238 } 239 } 240 241 mask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST | 242 EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST; 243 244 status = net->ReceiveFilters(net, mask, 0, FALSE, 0, NULL); 245 if (status != EFI_SUCCESS) 246 printf("net%d: cannot set rx. filters (status=%lu)\n", 247 nif->nif_unit, EFI_ERROR_CODE(status)); 248 249 #ifdef EFINET_DEBUG 250 dump_mode(net->Mode); 251 #endif 252 253 bcopy(net->Mode->CurrentAddress.Addr, desc->myea, 6); 254 desc->xid = 1; 255 } 256 257 static void 258 efinet_end(struct netif *nif) 259 { 260 EFI_SIMPLE_NETWORK *net = nif->nif_devdata; 261 262 if (net == NULL) 263 return; 264 265 net->Shutdown(net); 266 } 267 268 static int efinet_dev_init(void); 269 static int efinet_dev_print(int); 270 271 struct devsw efinet_dev = { 272 .dv_name = "net", 273 .dv_type = DEVT_NET, 274 .dv_init = efinet_dev_init, 275 .dv_strategy = NULL, /* Will be set in efinet_dev_init */ 276 .dv_open = NULL, /* Will be set in efinet_dev_init */ 277 .dv_close = NULL, /* Will be set in efinet_dev_init */ 278 .dv_ioctl = noioctl, 279 .dv_print = efinet_dev_print, 280 .dv_cleanup = NULL 281 }; 282 283 static int 284 efinet_dev_init(void) 285 { 286 struct netif_dif *dif; 287 struct netif_stats *stats; 288 EFI_DEVICE_PATH *devpath, *node; 289 EFI_HANDLE *handles, *handles2; 290 EFI_STATUS status; 291 UINTN sz; 292 int err, i, nifs; 293 extern struct devsw netdev; 294 295 sz = 0; 296 handles = NULL; 297 status = BS->LocateHandle(ByProtocol, &sn_guid, NULL, &sz, NULL); 298 if (status == EFI_BUFFER_TOO_SMALL) { 299 handles = (EFI_HANDLE *)malloc(sz); 300 if (handles == NULL) 301 return (ENOMEM); 302 status = BS->LocateHandle(ByProtocol, &sn_guid, NULL, &sz, 303 handles); 304 if (EFI_ERROR(status)) 305 free(handles); 306 } 307 if (EFI_ERROR(status)) 308 return (efi_status_to_errno(status)); 309 handles2 = (EFI_HANDLE *)malloc(sz); 310 if (handles2 == NULL) { 311 free(handles); 312 return (ENOMEM); 313 } 314 nifs = 0; 315 for (i = 0; i < sz / sizeof (EFI_HANDLE); i++) { 316 devpath = efi_lookup_devpath(handles[i]); 317 if (devpath == NULL) 318 continue; 319 if ((node = efi_devpath_last_node(devpath)) == NULL) 320 continue; 321 322 if (DevicePathType(node) != MESSAGING_DEVICE_PATH || 323 DevicePathSubType(node) != MSG_MAC_ADDR_DP) 324 continue; 325 326 handles2[nifs] = handles[i]; 327 nifs++; 328 } 329 free(handles); 330 if (nifs == 0) { 331 err = ENOENT; 332 goto done; 333 } 334 335 err = efi_register_handles(&efinet_dev, handles2, NULL, nifs); 336 if (err != 0) 337 goto done; 338 339 efinetif.netif_ifs = calloc(nifs, sizeof (struct netif_dif)); 340 stats = calloc(nifs, sizeof (struct netif_stats)); 341 if (efinetif.netif_ifs == NULL || stats == NULL) { 342 free(efinetif.netif_ifs); 343 free(stats); 344 efinetif.netif_ifs = NULL; 345 err = ENOMEM; 346 goto done; 347 } 348 efinetif.netif_nifs = nifs; 349 350 for (i = 0; i < nifs; i++) { 351 352 dif = &efinetif.netif_ifs[i]; 353 dif->dif_unit = i; 354 dif->dif_nsel = 1; 355 dif->dif_stats = &stats[i]; 356 dif->dif_private = handles2[i]; 357 } 358 359 efinet_dev.dv_open = netdev.dv_open; 360 efinet_dev.dv_close = netdev.dv_close; 361 efinet_dev.dv_strategy = netdev.dv_strategy; 362 363 done: 364 free(handles2); 365 return (err); 366 } 367 368 static int 369 efinet_dev_print(int verbose) 370 { 371 CHAR16 *text; 372 EFI_HANDLE h; 373 int unit, ret = 0; 374 375 printf("%s devices:", efinet_dev.dv_name); 376 if ((ret = pager_output("\n")) != 0) 377 return (ret); 378 379 for (unit = 0, h = efi_find_handle(&efinet_dev, 0); 380 h != NULL; h = efi_find_handle(&efinet_dev, ++unit)) { 381 printf(" %s%d:", efinet_dev.dv_name, unit); 382 if (verbose) { 383 text = efi_devpath_name(efi_lookup_devpath(h)); 384 if (text != NULL) { 385 printf(" %S", text); 386 efi_free_devpath_name(text); 387 } 388 } 389 if ((ret = pager_output("\n")) != 0) 390 break; 391 } 392 return (ret); 393 } 394