From 7d97ee5b28b409c00bfaf12daf5ab497a6038b9d Mon Sep 17 00:00:00 2001 From: kevans Date: Mon, 12 Feb 2018 01:08:44 +0000 Subject: MFC r325834,r325997,326502: Move sys/boot to stand/ This is effectively a direct commit to stable/11, due to differences between stable/11 and head. Changes to DTS in sys/boot/fdt/dts were often accompanied by kernel changes. Many of these were also risc-v updates that likely had many more dependencies to MFC. Because of this, sys/boot/fdt/dts remains as-is while everything else in sys/boot relocates to stand/. r325834: Move sys/boot to stand. Fix all references to new location r325997: Remove empty directories. r326502: Document the sys/boot -> stand move in hier.7 and the top-level README. --- stand/libsa/netif.c | 316 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 316 insertions(+) create mode 100644 stand/libsa/netif.c (limited to 'stand/libsa/netif.c') diff --git a/stand/libsa/netif.c b/stand/libsa/netif.c new file mode 100644 index 0000000..105f9a3 --- /dev/null +++ b/stand/libsa/netif.c @@ -0,0 +1,316 @@ +/* $NetBSD: netif.c,v 1.10 1997/09/06 13:57:14 drochner Exp $ */ + +/* + * Copyright (c) 1993 Adam Glass + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Adam Glass. + * 4. The name of the Author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY Adam Glass ``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 REGENTS 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 +__FBSDID("$FreeBSD$"); + +#include +#include +#include +#include +#include + +#include +#include + +#include "stand.h" +#include "net.h" +#include "netif.h" + +struct iodesc sockets[SOPEN_MAX]; +#ifdef NETIF_DEBUG +int netif_debug = 0; +#endif + +/* + * netif_init: + * + * initialize the generic network interface layer + */ + +void +netif_init(void) +{ + struct netif_driver *drv; + int d, i; + +#ifdef NETIF_DEBUG + if (netif_debug) + printf("netif_init: called\n"); +#endif + for (d = 0; netif_drivers[d]; d++) { + drv = netif_drivers[d]; + for (i = 0; i < drv->netif_nifs; i++) + drv->netif_ifs[i].dif_used = 0; + } +} + +int +netif_match(struct netif *nif, void *machdep_hint) +{ + struct netif_driver *drv = nif->nif_driver; + +#if NETIF_DEBUG + if (netif_debug) + printf("%s%d: netif_match (%d)\n", drv->netif_bname, + nif->nif_unit, nif->nif_sel); +#endif + return drv->netif_match(nif, machdep_hint); +} + +struct netif * +netif_select(void *machdep_hint) +{ + int d, u, unit_done, s; + struct netif_driver *drv; + struct netif cur_if; + static struct netif best_if; + int best_val; + int val; + + best_val = 0; + best_if.nif_driver = NULL; + + for (d = 0; netif_drivers[d] != NULL; d++) { + cur_if.nif_driver = netif_drivers[d]; + drv = cur_if.nif_driver; + + for (u = 0; u < drv->netif_nifs; u++) { + cur_if.nif_unit = u; + unit_done = 0; + +#ifdef NETIF_DEBUG + if (netif_debug) + printf("\t%s%d:", drv->netif_bname, + cur_if.nif_unit); +#endif + + for (s = 0; s < drv->netif_ifs[u].dif_nsel; s++) { + cur_if.nif_sel = s; + + if (drv->netif_ifs[u].dif_used & (1 << s)) { +#ifdef NETIF_DEBUG + if (netif_debug) + printf(" [%d used]", s); +#endif + continue; + } + + val = netif_match(&cur_if, machdep_hint); +#ifdef NETIF_DEBUG + if (netif_debug) + printf(" [%d -> %d]", s, val); +#endif + if (val > best_val) { + best_val = val; + best_if = cur_if; + } + } +#ifdef NETIF_DEBUG + if (netif_debug) + printf("\n"); +#endif + } + } + + if (best_if.nif_driver == NULL) + return NULL; + + best_if.nif_driver-> + netif_ifs[best_if.nif_unit].dif_used |= (1 << best_if.nif_sel); + +#ifdef NETIF_DEBUG + if (netif_debug) + printf("netif_select: %s%d(%d) wins\n", + best_if.nif_driver->netif_bname, + best_if.nif_unit, best_if.nif_sel); +#endif + return &best_if; +} + +int +netif_probe(struct netif *nif, void *machdep_hint) +{ + struct netif_driver *drv = nif->nif_driver; + +#ifdef NETIF_DEBUG + if (netif_debug) + printf("%s%d: netif_probe\n", drv->netif_bname, nif->nif_unit); +#endif + return drv->netif_probe(nif, machdep_hint); +} + +void +netif_attach(struct netif *nif, struct iodesc *desc, void *machdep_hint) +{ + struct netif_driver *drv = nif->nif_driver; + +#ifdef NETIF_DEBUG + if (netif_debug) + printf("%s%d: netif_attach\n", drv->netif_bname, nif->nif_unit); +#endif + desc->io_netif = nif; +#ifdef PARANOID + if (drv->netif_init == NULL) + panic("%s%d: no netif_init support\n", drv->netif_bname, + nif->nif_unit); +#endif + drv->netif_init(desc, machdep_hint); + bzero(drv->netif_ifs[nif->nif_unit].dif_stats, + sizeof(struct netif_stats)); +} + +void +netif_detach(struct netif *nif) +{ + struct netif_driver *drv = nif->nif_driver; + +#ifdef NETIF_DEBUG + if (netif_debug) + printf("%s%d: netif_detach\n", drv->netif_bname, nif->nif_unit); +#endif +#ifdef PARANOID + if (drv->netif_end == NULL) + panic("%s%d: no netif_end support\n", drv->netif_bname, + nif->nif_unit); +#endif + drv->netif_end(nif); +} + +ssize_t +netif_get(struct iodesc *desc, void **pkt, time_t timo) +{ +#ifdef NETIF_DEBUG + struct netif *nif = desc->io_netif; +#endif + struct netif_driver *drv = desc->io_netif->nif_driver; + ssize_t rv; + +#ifdef NETIF_DEBUG + if (netif_debug) + printf("%s%d: netif_get\n", drv->netif_bname, nif->nif_unit); +#endif +#ifdef PARANOID + if (drv->netif_get == NULL) + panic("%s%d: no netif_get support\n", drv->netif_bname, + nif->nif_unit); +#endif + rv = drv->netif_get(desc, pkt, timo); +#ifdef NETIF_DEBUG + if (netif_debug) + printf("%s%d: netif_get returning %d\n", drv->netif_bname, + nif->nif_unit, (int)rv); +#endif + return (rv); +} + +ssize_t +netif_put(struct iodesc *desc, void *pkt, size_t len) +{ +#ifdef NETIF_DEBUG + struct netif *nif = desc->io_netif; +#endif + struct netif_driver *drv = desc->io_netif->nif_driver; + ssize_t rv; + +#ifdef NETIF_DEBUG + if (netif_debug) + printf("%s%d: netif_put\n", drv->netif_bname, nif->nif_unit); +#endif +#ifdef PARANOID + if (drv->netif_put == NULL) + panic("%s%d: no netif_put support\n", drv->netif_bname, + nif->nif_unit); +#endif + rv = drv->netif_put(desc, pkt, len); +#ifdef NETIF_DEBUG + if (netif_debug) + printf("%s%d: netif_put returning %d\n", drv->netif_bname, + nif->nif_unit, (int)rv); +#endif + return (rv); +} + +struct iodesc * +socktodesc(int sock) +{ + if (sock >= SOPEN_MAX) { + errno = EBADF; + return (NULL); + } + return (&sockets[sock]); +} + +int +netif_open(void *machdep_hint) +{ + int fd; + struct iodesc *s; + struct netif *nif; + + /* find a free socket */ + for (fd = 0, s = sockets; fd < SOPEN_MAX; fd++, s++) + if (s->io_netif == (struct netif *)0) + goto fnd; + errno = EMFILE; + return (-1); + +fnd: + bzero(s, sizeof(*s)); + netif_init(); + nif = netif_select(machdep_hint); + if (!nif) + panic("netboot: no interfaces left untried"); + if (netif_probe(nif, machdep_hint)) { + printf("netboot: couldn't probe %s%d\n", + nif->nif_driver->netif_bname, nif->nif_unit); + errno = EINVAL; + return (-1); + } + netif_attach(nif, s, machdep_hint); + + return (fd); +} + +int +netif_close(int sock) +{ + if (sock >= SOPEN_MAX) { + errno = EBADF; + return (-1); + } + netif_detach(sockets[sock].io_netif); + sockets[sock].io_netif = (struct netif *)0; + + return (0); +} -- cgit v1.1