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 #include <efidevp.h> 42 #include <Protocol/Arp.h> 43 #include <Protocol/SimpleNetwork.h> 44 #include <Protocol/VlanConfig.h> 45 46 EFI_GUID gEfiArpProtocolGuid = EFI_ARP_PROTOCOL_GUID; 47 EFI_GUID gEfiArpServiceBindingProtocolGuid = 48 EFI_ARP_SERVICE_BINDING_PROTOCOL_GUID; 49 EFI_GUID gEfiSimpleNetworkProtocolGuid = EFI_SIMPLE_NETWORK_PROTOCOL_GUID; 50 EFI_GUID gEfiVlanConfigProtocolGuid = EFI_VLAN_CONFIG_PROTOCOL_GUID; 51 52 static void efinet_end(struct netif *); 53 static ssize_t efinet_get(struct iodesc *, void **, time_t); 54 static void efinet_init(struct iodesc *, void *); 55 static int efinet_match(struct netif *, void *); 56 static int efinet_probe(struct netif *, void *); 57 static ssize_t efinet_put(struct iodesc *, void *, size_t); 58 59 struct netif_driver efinetif = { 60 .netif_bname = "efinet", 61 .netif_match = efinet_match, 62 .netif_probe = efinet_probe, 63 .netif_init = efinet_init, 64 .netif_get = efinet_get, 65 .netif_put = efinet_put, 66 .netif_end = efinet_end, 67 .netif_ifs = NULL, 68 .netif_nifs = 0 69 }; 70 71 #ifdef EFINET_DEBUG 72 static void 73 dump_mode(EFI_SIMPLE_NETWORK_MODE *mode) 74 { 75 int i; 76 77 printf("State = %x\n", mode->State); 78 printf("HwAddressSize = %u\n", mode->HwAddressSize); 79 printf("MediaHeaderSize = %u\n", mode->MediaHeaderSize); 80 printf("MaxPacketSize = %u\n", mode->MaxPacketSize); 81 printf("NvRamSize = %u\n", mode->NvRamSize); 82 printf("NvRamAccessSize = %u\n", mode->NvRamAccessSize); 83 printf("ReceiveFilterMask = %x\n", mode->ReceiveFilterMask); 84 printf("ReceiveFilterSetting = %u\n", mode->ReceiveFilterSetting); 85 printf("MaxMCastFilterCount = %u\n", mode->MaxMCastFilterCount); 86 printf("MCastFilterCount = %u\n", mode->MCastFilterCount); 87 printf("MCastFilter = {"); 88 for (i = 0; i < mode->MCastFilterCount; i++) 89 printf(" %s", ether_sprintf(mode->MCastFilter[i].Addr)); 90 printf(" }\n"); 91 printf("CurrentAddress = %s\n", 92 ether_sprintf(mode->CurrentAddress.Addr)); 93 printf("BroadcastAddress = %s\n", 94 ether_sprintf(mode->BroadcastAddress.Addr)); 95 printf("PermanentAddress = %s\n", 96 ether_sprintf(mode->PermanentAddress.Addr)); 97 printf("IfType = %u\n", mode->IfType); 98 printf("MacAddressChangeable = %d\n", mode->MacAddressChangeable); 99 printf("MultipleTxSupported = %d\n", mode->MultipleTxSupported); 100 printf("MediaPresentSupported = %d\n", mode->MediaPresentSupported); 101 printf("MediaPresent = %d\n", mode->MediaPresent); 102 } 103 #endif 104 105 static int 106 efinet_match(struct netif *nif, void *machdep_hint) 107 { 108 struct devdesc *dev = machdep_hint; 109 110 if (dev->d_unit == nif->nif_unit) 111 return (1); 112 return (0); 113 } 114 115 static int 116 efinet_probe(struct netif *nif, void *machdep_hint __unused) 117 { 118 EFI_SIMPLE_NETWORK *net; 119 EFI_HANDLE h; 120 EFI_STATUS status; 121 122 h = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private; 123 124 /* 125 * Open the network device in exclusive mode. Without this 126 * we will be racing with the UEFI network stack. It will 127 * pull packets off the network leading to lost packets. 128 */ 129 status = BS->OpenProtocol(h, &gEfiSimpleNetworkProtocolGuid, 130 (void **)&net, IH, NULL, EFI_OPEN_PROTOCOL_EXCLUSIVE); 131 if (status != EFI_SUCCESS) { 132 printf("Unable to open network interface %d for " 133 "exclusive access: %lu\n", nif->nif_unit, 134 DECODE_ERROR(status)); 135 } 136 137 return (0); 138 } 139 140 static ssize_t 141 efinet_put(struct iodesc *desc, void *pkt, size_t len) 142 { 143 struct netif *nif = desc->io_netif; 144 EFI_SIMPLE_NETWORK *net; 145 EFI_STATUS status; 146 void *buf; 147 148 net = nif->nif_devdata; 149 if (net == NULL) 150 return (-1); 151 152 status = net->Transmit(net, 0, len, pkt, NULL, NULL, NULL); 153 if (status != EFI_SUCCESS) 154 return (-1); 155 156 /* Wait for the buffer to be transmitted */ 157 do { 158 buf = NULL; /* XXX Is this needed? */ 159 status = net->GetStatus(net, NULL, &buf); 160 /* 161 * XXX EFI1.1 and the E1000 card returns a different 162 * address than we gave. Sigh. 163 */ 164 } while (status == EFI_SUCCESS && buf == NULL); 165 166 /* XXX How do we deal with status != EFI_SUCCESS now? */ 167 return ((status == EFI_SUCCESS) ? len : -1); 168 } 169 170 static ssize_t 171 efinet_get(struct iodesc *desc, void **pkt, time_t timeout) 172 { 173 struct netif *nif = desc->io_netif; 174 EFI_SIMPLE_NETWORK *net; 175 EFI_STATUS status; 176 UINTN bufsz; 177 time_t t; 178 char *buf, *ptr; 179 ssize_t ret = -1; 180 181 net = nif->nif_devdata; 182 if (net == NULL) 183 return (ret); 184 185 bufsz = net->Mode->MaxPacketSize + ETHER_HDR_LEN + ETHER_CRC_LEN; 186 buf = malloc(bufsz + ETHER_ALIGN); 187 if (buf == NULL) 188 return (ret); 189 ptr = buf + ETHER_ALIGN; 190 191 t = getsecs(); 192 while ((getsecs() - t) < timeout) { 193 status = net->Receive(net, NULL, &bufsz, ptr, NULL, NULL, NULL); 194 if (status == EFI_SUCCESS) { 195 *pkt = buf; 196 ret = (ssize_t)bufsz; 197 break; 198 } 199 if (status != EFI_NOT_READY) 200 break; 201 } 202 203 if (ret == -1) 204 free(buf); 205 return (ret); 206 } 207 208 static void 209 efinet_init(struct iodesc *desc, void *machdep_hint __unused) 210 { 211 struct netif *nif = desc->io_netif; 212 EFI_SIMPLE_NETWORK *net; 213 EFI_HANDLE h; 214 EFI_STATUS status; 215 UINT32 mask; 216 217 if (nif->nif_driver->netif_ifs[nif->nif_unit].dif_unit < 0) { 218 printf("Invalid network interface %d\n", nif->nif_unit); 219 return; 220 } 221 222 h = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private; 223 status = OpenProtocolByHandle(h, &gEfiSimpleNetworkProtocolGuid, 224 (void **)&nif->nif_devdata); 225 if (status != EFI_SUCCESS) { 226 printf("net%d: cannot fetch interface data (status=%lu)\n", 227 nif->nif_unit, DECODE_ERROR(status)); 228 return; 229 } 230 231 net = nif->nif_devdata; 232 if (net->Mode->State == EfiSimpleNetworkStopped) { 233 status = net->Start(net); 234 if (status != EFI_SUCCESS) { 235 printf("net%d: cannot start interface (status=%lu)\n", 236 nif->nif_unit, DECODE_ERROR(status)); 237 return; 238 } 239 } 240 241 if (net->Mode->State != EfiSimpleNetworkInitialized) { 242 status = net->Initialize(net, 0, 0); 243 if (status != EFI_SUCCESS) { 244 printf("net%d: cannot init. interface (status=%lu)\n", 245 nif->nif_unit, DECODE_ERROR(status)); 246 return; 247 } 248 } 249 250 mask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST | 251 EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST; 252 253 status = net->ReceiveFilters(net, mask, 0, FALSE, 0, NULL); 254 if (status != EFI_SUCCESS) 255 printf("net%d: cannot set rx. filters (status=%lu)\n", 256 nif->nif_unit, DECODE_ERROR(status)); 257 258 #ifdef EFINET_DEBUG 259 dump_mode(net->Mode); 260 #endif 261 262 bcopy(net->Mode->CurrentAddress.Addr, desc->myea, 6); 263 desc->xid = 1; 264 } 265 266 static void 267 efinet_end(struct netif *nif) 268 { 269 EFI_SIMPLE_NETWORK *net = nif->nif_devdata; 270 271 if (net == NULL) 272 return; 273 274 net->Shutdown(net); 275 } 276 277 static int efinet_dev_init(void); 278 static int efinet_dev_print(int); 279 280 struct devsw efinet_dev = { 281 .dv_name = "net", 282 .dv_type = DEVT_NET, 283 .dv_init = efinet_dev_init, 284 .dv_strategy = NULL, /* Will be set in efinet_dev_init */ 285 .dv_open = NULL, /* Will be set in efinet_dev_init */ 286 .dv_close = NULL, /* Will be set in efinet_dev_init */ 287 .dv_ioctl = noioctl, 288 .dv_print = efinet_dev_print, 289 .dv_cleanup = NULL 290 }; 291 292 static int 293 efinet_dev_init(void) 294 { 295 struct netif_dif *dif; 296 struct netif_stats *stats; 297 EFI_DEVICE_PATH *devpath, *node; 298 EFI_HANDLE *handles, *handles2; 299 EFI_STATUS status; 300 uint_t i, nhandles, nifs; 301 int err; 302 extern struct devsw netdev; 303 304 status = efi_get_protocol_handles(&gEfiSimpleNetworkProtocolGuid, 305 &nhandles, &handles); 306 if (EFI_ERROR(status)) 307 return (efi_status_to_errno(status)); 308 handles2 = (EFI_HANDLE *)malloc(nhandles * sizeof (EFI_HANDLE)); 309 if (handles2 == NULL) { 310 free(handles); 311 return (ENOMEM); 312 } 313 nifs = 0; 314 for (i = 0; i < nhandles; i++) { 315 devpath = efi_lookup_devpath(handles[i]); 316 if (devpath == NULL) 317 continue; 318 if ((node = efi_devpath_last_node(devpath)) == NULL) 319 continue; 320 321 if (DevicePathType(node) != MESSAGING_DEVICE_PATH || 322 DevicePathSubType(node) != MSG_MAC_ADDR_DP) 323 continue; 324 325 handles2[nifs] = handles[i]; 326 nifs++; 327 } 328 free(handles); 329 if (nifs == 0) { 330 err = ENOENT; 331 goto done; 332 } 333 334 err = efi_register_handles(&efinet_dev, handles2, NULL, nifs); 335 if (err != 0) 336 goto done; 337 338 efinetif.netif_ifs = calloc(nifs, sizeof (struct netif_dif)); 339 stats = calloc(nifs, sizeof (struct netif_stats)); 340 if (efinetif.netif_ifs == NULL || stats == NULL) { 341 free(efinetif.netif_ifs); 342 free(stats); 343 efinetif.netif_ifs = NULL; 344 err = ENOMEM; 345 goto done; 346 } 347 efinetif.netif_nifs = nifs; 348 349 for (i = 0; i < nifs; i++) { 350 351 dif = &efinetif.netif_ifs[i]; 352 dif->dif_unit = i; 353 dif->dif_nsel = 1; 354 dif->dif_stats = &stats[i]; 355 dif->dif_private = handles2[i]; 356 } 357 358 efinet_dev.dv_open = netdev.dv_open; 359 efinet_dev.dv_close = netdev.dv_close; 360 efinet_dev.dv_strategy = netdev.dv_strategy; 361 362 done: 363 free(handles2); 364 return (err); 365 } 366 367 static int 368 efinet_dev_print(int verbose) 369 { 370 CHAR16 *text; 371 EFI_HANDLE h; 372 int unit, ret = 0; 373 374 printf("%s devices:", efinet_dev.dv_name); 375 if ((ret = pager_output("\n")) != 0) 376 return (ret); 377 378 for (unit = 0, h = efi_find_handle(&efinet_dev, 0); 379 h != NULL; h = efi_find_handle(&efinet_dev, ++unit)) { 380 printf(" %s%d:", efinet_dev.dv_name, unit); 381 if (verbose) { 382 text = efi_devpath_name(efi_lookup_devpath(h)); 383 if (text != NULL) { 384 printf(" %S", text); 385 efi_free_devpath_name(text); 386 } 387 } 388 if ((ret = pager_output("\n")) != 0) 389 break; 390 } 391 return (ret); 392 } 393