diff options
Diffstat (limited to 'stand/efi/libefi/efinet.c')
| -rw-r--r-- | stand/efi/libefi/efinet.c | 390 |
1 files changed, 390 insertions, 0 deletions
diff --git a/stand/efi/libefi/efinet.c b/stand/efi/libefi/efinet.c new file mode 100644 index 0000000000000..cdb63c99f39bc --- /dev/null +++ b/stand/efi/libefi/efinet.c @@ -0,0 +1,390 @@ +/*- + * Copyright (c) 2001 Doug Rabson + * Copyright (c) 2002, 2006 Marcel Moolenaar + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <net/ethernet.h> +#include <netinet/in.h> +#include <netinet/in_systm.h> + +#include <stand.h> +#include <net.h> +#include <netif.h> + +#include <efi.h> +#include <efilib.h> + +static EFI_GUID sn_guid = EFI_SIMPLE_NETWORK_PROTOCOL; + +static void efinet_end(struct netif *); +static ssize_t efinet_get(struct iodesc *, void **, time_t); +static void efinet_init(struct iodesc *, void *); +static int efinet_match(struct netif *, void *); +static int efinet_probe(struct netif *, void *); +static ssize_t efinet_put(struct iodesc *, void *, size_t); + +struct netif_driver efinetif = { + .netif_bname = "efinet", + .netif_match = efinet_match, + .netif_probe = efinet_probe, + .netif_init = efinet_init, + .netif_get = efinet_get, + .netif_put = efinet_put, + .netif_end = efinet_end, + .netif_ifs = NULL, + .netif_nifs = 0 +}; + +#ifdef EFINET_DEBUG +static void +dump_mode(EFI_SIMPLE_NETWORK_MODE *mode) +{ + int i; + + printf("State = %x\n", mode->State); + printf("HwAddressSize = %u\n", mode->HwAddressSize); + printf("MediaHeaderSize = %u\n", mode->MediaHeaderSize); + printf("MaxPacketSize = %u\n", mode->MaxPacketSize); + printf("NvRamSize = %u\n", mode->NvRamSize); + printf("NvRamAccessSize = %u\n", mode->NvRamAccessSize); + printf("ReceiveFilterMask = %x\n", mode->ReceiveFilterMask); + printf("ReceiveFilterSetting = %u\n", mode->ReceiveFilterSetting); + printf("MaxMCastFilterCount = %u\n", mode->MaxMCastFilterCount); + printf("MCastFilterCount = %u\n", mode->MCastFilterCount); + printf("MCastFilter = {"); + for (i = 0; i < mode->MCastFilterCount; i++) + printf(" %s", ether_sprintf(mode->MCastFilter[i].Addr)); + printf(" }\n"); + printf("CurrentAddress = %s\n", + ether_sprintf(mode->CurrentAddress.Addr)); + printf("BroadcastAddress = %s\n", + ether_sprintf(mode->BroadcastAddress.Addr)); + printf("PermanentAddress = %s\n", + ether_sprintf(mode->PermanentAddress.Addr)); + printf("IfType = %u\n", mode->IfType); + printf("MacAddressChangeable = %d\n", mode->MacAddressChangeable); + printf("MultipleTxSupported = %d\n", mode->MultipleTxSupported); + printf("MediaPresentSupported = %d\n", mode->MediaPresentSupported); + printf("MediaPresent = %d\n", mode->MediaPresent); +} +#endif + +static int +efinet_match(struct netif *nif, void *machdep_hint) +{ + struct devdesc *dev = machdep_hint; + + if (dev->d_unit == nif->nif_unit) + return (1); + return(0); +} + +static int +efinet_probe(struct netif *nif, void *machdep_hint) +{ + + return (0); +} + +static ssize_t +efinet_put(struct iodesc *desc, void *pkt, size_t len) +{ + struct netif *nif = desc->io_netif; + EFI_SIMPLE_NETWORK *net; + EFI_STATUS status; + void *buf; + + net = nif->nif_devdata; + if (net == NULL) + return (-1); + + status = net->Transmit(net, 0, len, pkt, NULL, NULL, NULL); + if (status != EFI_SUCCESS) + return (-1); + + /* Wait for the buffer to be transmitted */ + do { + buf = NULL; /* XXX Is this needed? */ + status = net->GetStatus(net, NULL, &buf); + /* + * XXX EFI1.1 and the E1000 card returns a different + * address than we gave. Sigh. + */ + } while (status == EFI_SUCCESS && buf == NULL); + + /* XXX How do we deal with status != EFI_SUCCESS now? */ + return ((status == EFI_SUCCESS) ? len : -1); +} + +static ssize_t +efinet_get(struct iodesc *desc, void **pkt, time_t timeout) +{ + struct netif *nif = desc->io_netif; + EFI_SIMPLE_NETWORK *net; + EFI_STATUS status; + UINTN bufsz; + time_t t; + char *buf, *ptr; + ssize_t ret = -1; + + net = nif->nif_devdata; + if (net == NULL) + return (ret); + + bufsz = net->Mode->MaxPacketSize + ETHER_HDR_LEN + ETHER_CRC_LEN; + buf = malloc(bufsz + ETHER_ALIGN); + if (buf == NULL) + return (ret); + ptr = buf + ETHER_ALIGN; + + t = getsecs(); + while ((getsecs() - t) < timeout) { + status = net->Receive(net, NULL, &bufsz, ptr, NULL, NULL, NULL); + if (status == EFI_SUCCESS) { + *pkt = buf; + ret = (ssize_t)bufsz; + break; + } + if (status != EFI_NOT_READY) + break; + } + + if (ret == -1) + free(buf); + return (ret); +} + +static void +efinet_init(struct iodesc *desc, void *machdep_hint) +{ + struct netif *nif = desc->io_netif; + EFI_SIMPLE_NETWORK *net; + EFI_HANDLE h; + EFI_STATUS status; + UINT32 mask; + + if (nif->nif_driver->netif_ifs[nif->nif_unit].dif_unit < 0) { + printf("Invalid network interface %d\n", nif->nif_unit); + return; + } + + h = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private; + status = BS->HandleProtocol(h, &sn_guid, (VOID **)&nif->nif_devdata); + if (status != EFI_SUCCESS) { + printf("net%d: cannot fetch interface data (status=%lu)\n", + nif->nif_unit, EFI_ERROR_CODE(status)); + return; + } + + net = nif->nif_devdata; + if (net->Mode->State == EfiSimpleNetworkStopped) { + status = net->Start(net); + if (status != EFI_SUCCESS) { + printf("net%d: cannot start interface (status=%lu)\n", + nif->nif_unit, EFI_ERROR_CODE(status)); + return; + } + } + + if (net->Mode->State != EfiSimpleNetworkInitialized) { + status = net->Initialize(net, 0, 0); + if (status != EFI_SUCCESS) { + printf("net%d: cannot init. interface (status=%lu)\n", + nif->nif_unit, EFI_ERROR_CODE(status)); + return; + } + } + + mask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST | + EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST; + + status = net->ReceiveFilters(net, mask, 0, FALSE, 0, NULL); + if (status != EFI_SUCCESS) { + printf("net%d: cannot set rx. filters (status=%lu)\n", + nif->nif_unit, EFI_ERROR_CODE(status)); + return; + } + +#ifdef EFINET_DEBUG + dump_mode(net->Mode); +#endif + + bcopy(net->Mode->CurrentAddress.Addr, desc->myea, 6); + desc->xid = 1; +} + +static void +efinet_end(struct netif *nif) +{ + EFI_SIMPLE_NETWORK *net = nif->nif_devdata; + + if (net == NULL) + return; + + net->Shutdown(net); +} + +static int efinet_dev_init(void); +static int efinet_dev_print(int); + +struct devsw efinet_dev = { + .dv_name = "net", + .dv_type = DEVT_NET, + .dv_init = efinet_dev_init, + .dv_strategy = NULL, /* Will be set in efinet_dev_init */ + .dv_open = NULL, /* Will be set in efinet_dev_init */ + .dv_close = NULL, /* Will be set in efinet_dev_init */ + .dv_ioctl = noioctl, + .dv_print = efinet_dev_print, + .dv_cleanup = NULL +}; + +static int +efinet_dev_init() +{ + struct netif_dif *dif; + struct netif_stats *stats; + EFI_DEVICE_PATH *devpath, *node; + EFI_SIMPLE_NETWORK *net; + EFI_HANDLE *handles, *handles2; + EFI_STATUS status; + UINTN sz; + int err, i, nifs; + extern struct devsw netdev; + + sz = 0; + handles = NULL; + status = BS->LocateHandle(ByProtocol, &sn_guid, NULL, &sz, NULL); + if (status == EFI_BUFFER_TOO_SMALL) { + handles = (EFI_HANDLE *)malloc(sz); + status = BS->LocateHandle(ByProtocol, &sn_guid, NULL, &sz, + handles); + if (EFI_ERROR(status)) + free(handles); + } + if (EFI_ERROR(status)) + return (efi_status_to_errno(status)); + handles2 = (EFI_HANDLE *)malloc(sz); + if (handles2 == NULL) { + free(handles); + return (ENOMEM); + } + nifs = 0; + for (i = 0; i < sz / sizeof(EFI_HANDLE); i++) { + devpath = efi_lookup_devpath(handles[i]); + if (devpath == NULL) + continue; + if ((node = efi_devpath_last_node(devpath)) == NULL) + continue; + + if (DevicePathType(node) != MESSAGING_DEVICE_PATH || + DevicePathSubType(node) != MSG_MAC_ADDR_DP) + continue; + + /* + * Open the network device in exclusive mode. Without this + * we will be racing with the UEFI network stack. It will + * pull packets off the network leading to lost packets. + */ + status = BS->OpenProtocol(handles[i], &sn_guid, (void **)&net, + IH, NULL, EFI_OPEN_PROTOCOL_EXCLUSIVE); + if (status != EFI_SUCCESS) { + printf("Unable to open network interface %d for " + "exclusive access: %lu\n", i, + EFI_ERROR_CODE(status)); + } + + handles2[nifs] = handles[i]; + nifs++; + } + free(handles); + if (nifs == 0) { + err = ENOENT; + goto done; + } + + err = efi_register_handles(&efinet_dev, handles2, NULL, nifs); + if (err != 0) + goto done; + + efinetif.netif_ifs = calloc(nifs, sizeof(struct netif_dif)); + stats = calloc(nifs, sizeof(struct netif_stats)); + if (efinetif.netif_ifs == NULL || stats == NULL) { + free(efinetif.netif_ifs); + free(stats); + efinetif.netif_ifs = NULL; + err = ENOMEM; + goto done; + } + efinetif.netif_nifs = nifs; + + for (i = 0; i < nifs; i++) { + + dif = &efinetif.netif_ifs[i]; + dif->dif_unit = i; + dif->dif_nsel = 1; + dif->dif_stats = &stats[i]; + dif->dif_private = handles2[i]; + } + + efinet_dev.dv_open = netdev.dv_open; + efinet_dev.dv_close = netdev.dv_close; + efinet_dev.dv_strategy = netdev.dv_strategy; + +done: + free(handles2); + return (err); +} + +static int +efinet_dev_print(int verbose) +{ + CHAR16 *text; + EFI_HANDLE h; + int unit, ret = 0; + + printf("%s devices:", efinet_dev.dv_name); + if ((ret = pager_output("\n")) != 0) + return (ret); + + for (unit = 0, h = efi_find_handle(&efinet_dev, 0); + h != NULL; h = efi_find_handle(&efinet_dev, ++unit)) { + printf(" %s%d:", efinet_dev.dv_name, unit); + if (verbose) { + text = efi_devpath_name(efi_lookup_devpath(h)); + if (text != NULL) { + printf(" %S", text); + efi_free_devpath_name(text); + } + } + if ((ret = pager_output("\n")) != 0) + break; + } + return (ret); +} |