9423456018
layer to signal transmission of the packet. This resolves the problem I'm seeing that an immediate call to net->Receive after calling net->Transmit returns EFI_DEVICE_ERROR. This condition seems to be sufficiently persistent that BOOTP and RARP fail. o While here, unify all functions to have 'nif' defined. Some have it as arguments. The others now have them as locals. We now always get the protocol interface by using the 'nif' var. The current status of netbooting is that even though we now reliably have BOOTP working (again), opening a file (ie loading a kernel) across the network causes the loader to hang. I'm working on that now.
187 lines
4.3 KiB
C
187 lines
4.3 KiB
C
/*-
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* Copyright (c) 2001 Doug Rabson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <stand.h>
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#include <net.h>
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#include <netif.h>
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#include <efi.h>
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#include <efilib.h>
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extern struct netif_driver efi_net;
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int
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efinet_match(struct netif *nif, void *machdep_hint)
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{
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return (1);
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}
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int
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efinet_probe(struct netif *nif, void *machdep_hint)
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{
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return (0);
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}
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int
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efinet_put(struct iodesc *desc, void *pkt, size_t len)
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{
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struct netif *nif = desc->io_netif;
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EFI_SIMPLE_NETWORK *net;
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EFI_STATUS status;
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void *buf;
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net = nif->nif_devdata;
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status = net->Transmit(net, 0, len, pkt, 0, 0, 0);
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if (status != EFI_SUCCESS)
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return -1;
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/* Wait for the buffer to be transmitted */
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buf = 0; /* XXX Is this needed? */
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do {
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status = net->GetStatus(net, 0, &buf);
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} while (status == EFI_SUCCESS && buf != pkt);
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/* XXX How do we deal with status != EFI_SUCCESS now? */
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return (status == EFI_SUCCESS) ? len : -1;
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}
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int
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efinet_get(struct iodesc *desc, void *pkt, size_t len, time_t timeout)
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{
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struct netif *nif = desc->io_netif;
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EFI_SIMPLE_NETWORK *net;
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EFI_STATUS status;
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UINTN bufsz;
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time_t t;
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net = nif->nif_devdata;
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t = time(0);
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while ((time(0) - t) < timeout) {
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bufsz = len;
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status = net->Receive(net, 0, &bufsz, pkt, 0, 0, 0);
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if (status == EFI_SUCCESS)
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return bufsz;
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if (status != EFI_NOT_READY)
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return 0;
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}
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return 0;
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}
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void
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efinet_init(struct iodesc *desc, void *machdep_hint)
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{
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struct netif *nif = desc->io_netif;
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EFI_SIMPLE_NETWORK *net;
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net = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private;
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nif->nif_devdata = net;
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net->Start(net);
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net->Initialize(net, 0, 0);
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bcopy(net->Mode->CurrentAddress.Addr, desc->myea, 6);
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desc->xid = 1;
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return;
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}
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void
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efinet_init_driver()
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{
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EFI_STATUS status;
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UINTN sz;
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static EFI_GUID netid = EFI_SIMPLE_NETWORK_PROTOCOL;
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EFI_HANDLE *handles;
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int nifs, i;
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#define MAX_INTERFACES 4
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static struct netif_dif difs[MAX_INTERFACES];
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static struct netif_stats stats[MAX_INTERFACES];
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sz = 0;
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status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, 0);
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if (status != EFI_BUFFER_TOO_SMALL)
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return;
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handles = (EFI_HANDLE *) malloc(sz);
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status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, handles);
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if (EFI_ERROR(status)) {
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free(handles);
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return;
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}
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nifs = sz / sizeof(EFI_HANDLE);
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if (nifs > MAX_INTERFACES)
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nifs = MAX_INTERFACES;
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efi_net.netif_nifs = nifs;
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efi_net.netif_ifs = difs;
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bzero(stats, sizeof(stats));
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for (i = 0; i < nifs; i++) {
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struct netif_dif *dif = &efi_net.netif_ifs[i];
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dif->dif_unit = i;
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dif->dif_nsel = 1;
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dif->dif_stats = &stats[i];
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BS->HandleProtocol(handles[i], &netid,
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(VOID**) &dif->dif_private);
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}
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return;
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}
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void
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efinet_end(struct netif *nif)
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{
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EFI_SIMPLE_NETWORK *net = nif->nif_devdata;
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net->Shutdown(net);
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}
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struct netif_driver efi_net = {
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"net", /* netif_bname */
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efinet_match, /* netif_match */
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efinet_probe, /* netif_probe */
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efinet_init, /* netif_init */
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efinet_get, /* netif_get */
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efinet_put, /* netif_put */
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efinet_end, /* netif_end */
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0, /* netif_ifs */
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0 /* netif_nifs */
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};
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