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 * $FreeBSD: head/sys/boot/efi/libefi/efinet.c 295210 2016-02-03 14:34:25Z andrew $ 28 */ 29 30 #include <sys/param.h> 31 #include <netinet/in.h> 32 #include <netinet/in_systm.h> 33 34 #include <stand.h> 35 #include <stdarg.h> 36 #include <net.h> 37 #include <netif.h> 38 39 #include <dev_net.c> 40 41 #include <efi.h> 42 #include <efilib.h> 43 44 static EFI_GUID sn_guid = EFI_SIMPLE_NETWORK_PROTOCOL_GUID; 45 46 static void efinet_end(struct netif *); 47 static int efinet_get(struct iodesc *, void *, size_t, time_t); 48 static void efinet_init(struct iodesc *, void *); 49 static int efinet_match(struct netif *, void *); 50 static int efinet_probe(struct netif *, void *); 51 static int efinet_put(struct iodesc *, void *, size_t); 52 53 struct netif_driver efinetif = { 54 .netif_bname = "efinet", 55 .netif_match = efinet_match, 56 .netif_probe = efinet_probe, 57 .netif_init = efinet_init, 58 .netif_get = efinet_get, 59 .netif_put = efinet_put, 60 .netif_end = efinet_end, 61 .netif_ifs = NULL, 62 .netif_nifs = 0 63 }; 64 65 #ifdef EFINET_DEBUG 66 static void 67 dump_mode(EFI_SIMPLE_NETWORK_MODE *mode) 68 { 69 int i; 70 71 printf("State = %x\n", mode->State); 72 printf("HwAddressSize = %u\n", mode->HwAddressSize); 73 printf("MediaHeaderSize = %u\n", mode->MediaHeaderSize); 74 printf("MaxPacketSize = %u\n", mode->MaxPacketSize); 75 printf("NvRamSize = %u\n", mode->NvRamSize); 76 printf("NvRamAccessSize = %u\n", mode->NvRamAccessSize); 77 printf("ReceiveFilterMask = %x\n", mode->ReceiveFilterMask); 78 printf("ReceiveFilterSetting = %u\n", mode->ReceiveFilterSetting); 79 printf("MaxMCastFilterCount = %u\n", mode->MaxMCastFilterCount); 80 printf("MCastFilterCount = %u\n", mode->MCastFilterCount); 81 printf("MCastFilter = {"); 82 for (i = 0; i < mode->MCastFilterCount; i++) 83 printf(" %s", ether_sprintf(mode->MCastFilter[i].Addr)); 84 printf(" }\n"); 85 printf("CurrentAddress = %s\n", 86 ether_sprintf(mode->CurrentAddress.Addr)); 87 printf("BroadcastAddress = %s\n", 88 ether_sprintf(mode->BroadcastAddress.Addr)); 89 printf("PermanentAddress = %s\n", 90 ether_sprintf(mode->PermanentAddress.Addr)); 91 printf("IfType = %u\n", mode->IfType); 92 printf("MacAddressChangeable = %d\n", mode->MacAddressChangeable); 93 printf("MultipleTxSupported = %d\n", mode->MultipleTxSupported); 94 printf("MediaPresentSupported = %d\n", mode->MediaPresentSupported); 95 printf("MediaPresent = %d\n", mode->MediaPresent); 96 } 97 #endif 98 99 static int 100 efinet_match(struct netif *nif, void *machdep_hint) 101 { 102 struct efi_devdesc *dev = machdep_hint; 103 104 if (dev->d_kind.efidisk.unit - 1 == nif->nif_unit) 105 return (1); 106 return(0); 107 } 108 109 static int 110 efinet_probe(struct netif *nif, void *machdep_hint) 111 { 112 113 return (0); 114 } 115 116 static int 117 efinet_put(struct iodesc *desc, void *pkt, size_t len) 118 { 119 struct netif *nif = desc->io_netif; 120 EFI_SIMPLE_NETWORK *net; 121 EFI_STATUS status; 122 void *buf; 123 124 net = nif->nif_devdata; 125 126 status = net->Transmit(net, 0, len, pkt, 0, 0, 0); 127 if (status != EFI_SUCCESS) 128 return (-1); 129 130 /* Wait for the buffer to be transmitted */ 131 do { 132 buf = NULL; /* XXX Is this needed? */ 133 status = net->GetStatus(net, 0, &buf); 134 /* 135 * XXX EFI1.1 and the E1000 card returns a different 136 * address than we gave. Sigh. 137 */ 138 } while (status == EFI_SUCCESS && buf == NULL); 139 140 /* XXX How do we deal with status != EFI_SUCCESS now? */ 141 return ((status == EFI_SUCCESS) ? len : -1); 142 } 143 144 static int 145 efinet_get(struct iodesc *desc, void *pkt, size_t len, time_t timeout) 146 { 147 struct netif *nif = desc->io_netif; 148 EFI_SIMPLE_NETWORK *net; 149 EFI_STATUS status; 150 UINTN bufsz; 151 time_t t; 152 char buf[2048]; 153 154 net = nif->nif_devdata; 155 156 t = time(0); 157 while ((time(0) - t) < timeout) { 158 bufsz = sizeof(buf); 159 status = net->Receive(net, 0, &bufsz, buf, 0, 0, 0); 160 if (status == EFI_SUCCESS) { 161 /* 162 * XXX EFI1.1 and the E1000 card trash our 163 * workspace if we do not do this silly copy. 164 * Either they are not respecting the len 165 * value or do not like the alignment. 166 */ 167 if (bufsz > len) 168 bufsz = len; 169 bcopy(buf, pkt, bufsz); 170 return (bufsz); 171 } 172 if (status != EFI_NOT_READY) 173 return (0); 174 } 175 176 return (0); 177 } 178 179 static void 180 efinet_init(struct iodesc *desc, void *machdep_hint) 181 { 182 struct netif *nif = desc->io_netif; 183 EFI_SIMPLE_NETWORK *net; 184 EFI_HANDLE h; 185 EFI_STATUS status; 186 187 if (nif->nif_driver->netif_ifs[nif->nif_unit].dif_unit < 0) { 188 printf("Invalid network interface %d\n", nif->nif_unit); 189 return; 190 } 191 192 h = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private; 193 status = OpenProtocolByHandle(h, &sn_guid, (VOID **)&nif->nif_devdata); 194 if (status != EFI_SUCCESS) { 195 printf("net%d: cannot start interface (status=%llu)\n", 196 nif->nif_unit, status); 197 return; 198 } 199 200 net = nif->nif_devdata; 201 if (net->Mode->State == EfiSimpleNetworkStopped) { 202 status = net->Start(net); 203 if (status != EFI_SUCCESS) { 204 printf("net%d: cannot start interface (status=%llu)\n", 205 nif->nif_unit, status); 206 return; 207 } 208 } 209 210 if (net->Mode->State != EfiSimpleNetworkInitialized) { 211 status = net->Initialize(net, 0, 0); 212 if (status != EFI_SUCCESS) { 213 printf("net%d: cannot init. interface (status=%llu)\n", 214 nif->nif_unit, status); 215 return; 216 } 217 } 218 219 if (net->Mode->ReceiveFilterSetting == 0) { 220 UINT32 mask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST | 221 EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST; 222 223 status = net->ReceiveFilters(net, mask, 0, FALSE, 0, 0); 224 if (status != EFI_SUCCESS) { 225 printf("net%d: cannot set rx. filters (status=%llu)\n", 226 nif->nif_unit, status); 227 return; 228 } 229 } 230 231 #ifdef EFINET_DEBUG 232 dump_mode(net->Mode); 233 #endif 234 235 bcopy(net->Mode->CurrentAddress.Addr, desc->myea, 6); 236 desc->xid = 1; 237 } 238 239 static void 240 efinet_end(struct netif *nif) 241 { 242 EFI_SIMPLE_NETWORK *net = nif->nif_devdata; 243 244 net->Shutdown(net); 245 } 246 247 static int efinet_dev_init(void); 248 static void efinet_dev_print(int); 249 250 struct devsw efinet_dev = { 251 .dv_name = "net", 252 .dv_type = DEVT_NET, 253 .dv_init = efinet_dev_init, 254 .dv_strategy = net_strategy, 255 .dv_open = net_open, 256 .dv_close = net_close, 257 .dv_ioctl = noioctl, 258 .dv_print = efinet_dev_print, 259 .dv_cleanup = NULL 260 }; 261 262 static int 263 efinet_dev_init(void) 264 { 265 struct netif_dif *dif; 266 struct netif_stats *stats; 267 EFI_HANDLE *handles; 268 EFI_STATUS status; 269 UINTN sz; 270 int err, i, nifs; 271 272 sz = 0; 273 handles = NULL; 274 status = BS->LocateHandle(ByProtocol, &sn_guid, 0, &sz, 0); 275 if (status == EFI_BUFFER_TOO_SMALL) { 276 handles = (EFI_HANDLE *)malloc(sz); 277 status = BS->LocateHandle(ByProtocol, &sn_guid, 0, &sz, 278 handles); 279 if (EFI_ERROR(status)) 280 free(handles); 281 } 282 if (EFI_ERROR(status)) 283 return (efi_status_to_errno(status)); 284 nifs = sz / sizeof(EFI_HANDLE); 285 err = efi_register_handles(&efinet_dev, handles, NULL, nifs); 286 free(handles); 287 if (err != 0) 288 return (err); 289 290 efinetif.netif_nifs = nifs; 291 efinetif.netif_ifs = calloc(nifs, sizeof(struct netif_dif)); 292 293 stats = calloc(nifs, sizeof(struct netif_stats)); 294 295 for (i = 0; i < nifs; i++) { 296 EFI_SIMPLE_NETWORK *net; 297 EFI_HANDLE h; 298 299 dif = &efinetif.netif_ifs[i]; 300 dif->dif_unit = -1; 301 302 h = efi_find_handle(&efinet_dev, i); 303 304 /* 305 * Open the network device in exclusive mode. Without this 306 * we will be racing with the UEFI network stack. It will 307 * pull packets off the network leading to lost packets. 308 */ 309 status = BS->OpenProtocol(h, &sn_guid, (void **)&net, 310 IH, 0, EFI_OPEN_PROTOCOL_EXCLUSIVE); 311 if (status != EFI_SUCCESS) { 312 printf("Unable to open network interface %d for " 313 "exclusive access\n", i); 314 } 315 316 dif->dif_unit = i; 317 dif->dif_nsel = 1; 318 dif->dif_stats = &stats[i]; 319 dif->dif_private = h; 320 } 321 322 return (0); 323 } 324 325 static void 326 efinet_dev_print(int verbose) 327 { 328 char line[80]; 329 EFI_HANDLE h; 330 int unit; 331 332 for (unit = 0, h = efi_find_handle(&efinet_dev, 0); 333 h != NULL; h = efi_find_handle(&efinet_dev, ++unit)) { 334 sprintf(line, " %s%d:\n", efinet_dev.dv_name, unit); 335 pager_output(line); 336 } 337 } 338