2 * Copyright (c) 2001 Doug Rabson
3 * Copyright (c) 2002, 2006 Marcel Moolenaar
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD: head/sys/boot/efi/libefi/efinet.c 295210 2016-02-03 14:34:25Z andrew $");
31 #include <sys/param.h>
32 #include <netinet/in.h>
33 #include <netinet/in_systm.h>
45 static EFI_GUID sn_guid = EFI_SIMPLE_NETWORK_PROTOCOL_GUID;
47 static void efinet_end(struct netif *);
48 static int efinet_get(struct iodesc *, void *, size_t, time_t);
49 static void efinet_init(struct iodesc *, void *);
50 static int efinet_match(struct netif *, void *);
51 static int efinet_probe(struct netif *, void *);
52 static int efinet_put(struct iodesc *, void *, size_t);
54 struct netif_driver efinetif = {
55 .netif_bname = "efinet",
56 .netif_match = efinet_match,
57 .netif_probe = efinet_probe,
58 .netif_init = efinet_init,
59 .netif_get = efinet_get,
60 .netif_put = efinet_put,
61 .netif_end = efinet_end,
68 dump_mode(EFI_SIMPLE_NETWORK_MODE *mode)
72 printf("State = %x\n", mode->State);
73 printf("HwAddressSize = %u\n", mode->HwAddressSize);
74 printf("MediaHeaderSize = %u\n", mode->MediaHeaderSize);
75 printf("MaxPacketSize = %u\n", mode->MaxPacketSize);
76 printf("NvRamSize = %u\n", mode->NvRamSize);
77 printf("NvRamAccessSize = %u\n", mode->NvRamAccessSize);
78 printf("ReceiveFilterMask = %x\n", mode->ReceiveFilterMask);
79 printf("ReceiveFilterSetting = %u\n", mode->ReceiveFilterSetting);
80 printf("MaxMCastFilterCount = %u\n", mode->MaxMCastFilterCount);
81 printf("MCastFilterCount = %u\n", mode->MCastFilterCount);
82 printf("MCastFilter = {");
83 for (i = 0; i < mode->MCastFilterCount; i++)
84 printf(" %s", ether_sprintf(mode->MCastFilter[i].Addr));
86 printf("CurrentAddress = %s\n",
87 ether_sprintf(mode->CurrentAddress.Addr));
88 printf("BroadcastAddress = %s\n",
89 ether_sprintf(mode->BroadcastAddress.Addr));
90 printf("PermanentAddress = %s\n",
91 ether_sprintf(mode->PermanentAddress.Addr));
92 printf("IfType = %u\n", mode->IfType);
93 printf("MacAddressChangeable = %d\n", mode->MacAddressChangeable);
94 printf("MultipleTxSupported = %d\n", mode->MultipleTxSupported);
95 printf("MediaPresentSupported = %d\n", mode->MediaPresentSupported);
96 printf("MediaPresent = %d\n", mode->MediaPresent);
101 efinet_match(struct netif *nif, void *machdep_hint)
103 struct efi_devdesc *dev = machdep_hint;
105 if (dev->d_kind.efidisk.unit - 1 == nif->nif_unit)
111 efinet_probe(struct netif *nif, void *machdep_hint)
118 efinet_put(struct iodesc *desc, void *pkt, size_t len)
120 struct netif *nif = desc->io_netif;
121 EFI_SIMPLE_NETWORK *net;
125 net = nif->nif_devdata;
127 status = net->Transmit(net, 0, len, pkt, 0, 0, 0);
128 if (status != EFI_SUCCESS)
131 /* Wait for the buffer to be transmitted */
133 buf = 0; /* XXX Is this needed? */
134 status = net->GetStatus(net, 0, &buf);
136 * XXX EFI1.1 and the E1000 card returns a different
137 * address than we gave. Sigh.
139 } while (status == EFI_SUCCESS && buf == 0);
141 /* XXX How do we deal with status != EFI_SUCCESS now? */
142 return ((status == EFI_SUCCESS) ? len : -1);
146 efinet_get(struct iodesc *desc, void *pkt, size_t len, time_t timeout)
148 struct netif *nif = desc->io_netif;
149 EFI_SIMPLE_NETWORK *net;
155 net = nif->nif_devdata;
158 while ((time(0) - t) < timeout) {
160 status = net->Receive(net, 0, &bufsz, buf, 0, 0, 0);
161 if (status == EFI_SUCCESS) {
163 * XXX EFI1.1 and the E1000 card trash our
164 * workspace if we do not do this silly copy.
165 * Either they are not respecting the len
166 * value or do not like the alignment.
170 bcopy(buf, pkt, bufsz);
173 if (status != EFI_NOT_READY)
181 efinet_init(struct iodesc *desc, void *machdep_hint)
183 struct netif *nif = desc->io_netif;
184 EFI_SIMPLE_NETWORK *net;
188 if (nif->nif_driver->netif_ifs[nif->nif_unit].dif_unit < 0) {
189 printf("Invalid network interface %d\n", nif->nif_unit);
193 h = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private;
194 status = BS->HandleProtocol(h, &sn_guid, (VOID **)&nif->nif_devdata);
195 if (status != EFI_SUCCESS) {
196 printf("net%d: cannot start interface (status=%lu)\n",
197 nif->nif_unit, EFI_ERROR_CODE(status));
201 net = nif->nif_devdata;
202 if (net->Mode->State == EfiSimpleNetworkStopped) {
203 status = net->Start(net);
204 if (status != EFI_SUCCESS) {
205 printf("net%d: cannot start interface (status=%ld)\n",
206 nif->nif_unit, (long)status);
211 if (net->Mode->State != EfiSimpleNetworkInitialized) {
212 status = net->Initialize(net, 0, 0);
213 if (status != EFI_SUCCESS) {
214 printf("net%d: cannot init. interface (status=%ld)\n",
215 nif->nif_unit, (long)status);
220 if (net->Mode->ReceiveFilterSetting == 0) {
221 UINT32 mask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST |
222 EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;
224 status = net->ReceiveFilters(net, mask, 0, FALSE, 0, 0);
225 if (status != EFI_SUCCESS) {
226 printf("net%d: cannot set rx. filters (status=%ld)\n",
227 nif->nif_unit, (long)status);
233 dump_mode(net->Mode);
236 bcopy(net->Mode->CurrentAddress.Addr, desc->myea, 6);
241 efinet_end(struct netif *nif)
243 EFI_SIMPLE_NETWORK *net = nif->nif_devdata;
248 static int efinet_dev_init(void);
249 static void efinet_dev_print(int);
251 struct devsw efinet_dev = {
254 .dv_init = efinet_dev_init,
255 .dv_strategy = net_strategy,
257 .dv_close = net_close,
259 .dv_print = efinet_dev_print,
264 efinet_dev_init(void)
266 struct netif_dif *dif;
267 struct netif_stats *stats;
275 status = BS->LocateHandle(ByProtocol, &sn_guid, 0, &sz, 0);
276 if (status == EFI_BUFFER_TOO_SMALL) {
277 handles = (EFI_HANDLE *)malloc(sz);
278 status = BS->LocateHandle(ByProtocol, &sn_guid, 0, &sz,
280 if (EFI_ERROR(status))
283 if (EFI_ERROR(status))
284 return (efi_status_to_errno(status));
285 nifs = sz / sizeof(EFI_HANDLE);
286 err = efi_register_handles(&efinet_dev, handles, NULL, nifs);
291 efinetif.netif_nifs = nifs;
292 efinetif.netif_ifs = calloc(nifs, sizeof(struct netif_dif));
294 stats = calloc(nifs, sizeof(struct netif_stats));
296 for (i = 0; i < nifs; i++) {
297 EFI_SIMPLE_NETWORK *net;
300 dif = &efinetif.netif_ifs[i];
303 h = efi_find_handle(&efinet_dev, i);
306 * Open the network device in exclusive mode. Without this
307 * we will be racing with the UEFI network stack. It will
308 * pull packets off the network leading to lost packets.
310 status = BS->OpenProtocol(h, &sn_guid, (void **)&net,
311 IH, 0, EFI_OPEN_PROTOCOL_EXCLUSIVE);
312 if (status != EFI_SUCCESS) {
313 printf("Unable to open network interface %d for "
314 "exclusive access\n", i);
319 dif->dif_stats = &stats[i];
320 dif->dif_private = h;
327 efinet_dev_print(int verbose)
333 for (unit = 0, h = efi_find_handle(&efinet_dev, 0);
334 h != NULL; h = efi_find_handle(&efinet_dev, ++unit)) {
335 sprintf(line, " %s%d:\n", efinet_dev.dv_name, unit);