199767f8919635c4928607450d9e0abb932109ceToomas Soome/*-
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
199767f8919635c4928607450d9e0abb932109ceToomas Soome * All rights reserved.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Redistribution and use in source and binary forms, with or without
199767f8919635c4928607450d9e0abb932109ceToomas Soome * modification, are permitted provided that the following conditions
199767f8919635c4928607450d9e0abb932109ceToomas Soome * are met:
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 1. Redistributions of source code must retain the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 2. Redistributions in binary form must reproduce the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer in the
199767f8919635c4928607450d9e0abb932109ceToomas Soome * documentation and/or other materials provided with the distribution.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
199767f8919635c4928607450d9e0abb932109ceToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
199767f8919635c4928607450d9e0abb932109ceToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
199767f8919635c4928607450d9e0abb932109ceToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
199767f8919635c4928607450d9e0abb932109ceToomas Soome * SUCH DAMAGE.
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <sys/cdefs.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome__FBSDID("$FreeBSD$");
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <stand.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include "bootstrap.h"
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include "libofw.h"
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include "../zfs/libzfs.h"
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soomestatic int ofw_parsedev(struct ofw_devdesc **, const char *, const char **);
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome/*
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Point (dev) at an allocated device specifier for the device matching the
199767f8919635c4928607450d9e0abb932109ceToomas Soome * path in (devspec). If it contains an explicit device specification,
199767f8919635c4928607450d9e0abb932109ceToomas Soome * use that. If not, use the default device.
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint
199767f8919635c4928607450d9e0abb932109ceToomas Soomeofw_getdev(void **vdev, const char *devspec, const char **path)
199767f8919635c4928607450d9e0abb932109ceToomas Soome{
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct ofw_devdesc **dev = (struct ofw_devdesc **)vdev;
199767f8919635c4928607450d9e0abb932109ceToomas Soome int rv;
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome /*
199767f8919635c4928607450d9e0abb932109ceToomas Soome * If it looks like this is just a path and no
199767f8919635c4928607450d9e0abb932109ceToomas Soome * device, go with the current device.
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soome if ((devspec == NULL) ||
199767f8919635c4928607450d9e0abb932109ceToomas Soome ((strchr(devspec, '@') == NULL) &&
199767f8919635c4928607450d9e0abb932109ceToomas Soome (strchr(devspec, ':') == NULL))) {
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome if (((rv = ofw_parsedev(dev, getenv("currdev"), NULL)) == 0) &&
199767f8919635c4928607450d9e0abb932109ceToomas Soome (path != NULL))
199767f8919635c4928607450d9e0abb932109ceToomas Soome *path = devspec;
199767f8919635c4928607450d9e0abb932109ceToomas Soome return(rv);
199767f8919635c4928607450d9e0abb932109ceToomas Soome }
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome /*
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Try to parse the device name off the beginning of the devspec
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soome return(ofw_parsedev(dev, devspec, path));
199767f8919635c4928607450d9e0abb932109ceToomas Soome}
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome/*
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Point (dev) at an allocated device specifier matching the string version
199767f8919635c4928607450d9e0abb932109ceToomas Soome * at the beginning of (devspec). Return a pointer to the remaining
199767f8919635c4928607450d9e0abb932109ceToomas Soome * text in (path).
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soomestatic int
199767f8919635c4928607450d9e0abb932109ceToomas Soomeofw_parsedev(struct ofw_devdesc **dev, const char *devspec, const char **path)
199767f8919635c4928607450d9e0abb932109ceToomas Soome{
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct ofw_devdesc *idev;
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct devsw *dv;
199767f8919635c4928607450d9e0abb932109ceToomas Soome phandle_t handle;
199767f8919635c4928607450d9e0abb932109ceToomas Soome const char *p;
199767f8919635c4928607450d9e0abb932109ceToomas Soome const char *s;
199767f8919635c4928607450d9e0abb932109ceToomas Soome char *ep;
199767f8919635c4928607450d9e0abb932109ceToomas Soome char name[256];
199767f8919635c4928607450d9e0abb932109ceToomas Soome char type[64];
199767f8919635c4928607450d9e0abb932109ceToomas Soome int err;
199767f8919635c4928607450d9e0abb932109ceToomas Soome int len;
199767f8919635c4928607450d9e0abb932109ceToomas Soome int i;
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome for (p = s = devspec; *s != '\0'; p = s) {
199767f8919635c4928607450d9e0abb932109ceToomas Soome if ((s = strchr(p + 1, '/')) == NULL)
199767f8919635c4928607450d9e0abb932109ceToomas Soome s = strchr(p, '\0');
199767f8919635c4928607450d9e0abb932109ceToomas Soome len = s - devspec;
199767f8919635c4928607450d9e0abb932109ceToomas Soome bcopy(devspec, name, len);
199767f8919635c4928607450d9e0abb932109ceToomas Soome name[len] = '\0';
199767f8919635c4928607450d9e0abb932109ceToomas Soome if ((handle = OF_finddevice(name)) == -1) {
199767f8919635c4928607450d9e0abb932109ceToomas Soome bcopy(name, type, len);
199767f8919635c4928607450d9e0abb932109ceToomas Soome type[len] = '\0';
199767f8919635c4928607450d9e0abb932109ceToomas Soome } else if (OF_getprop(handle, "device_type", type, sizeof(type)) == -1)
199767f8919635c4928607450d9e0abb932109ceToomas Soome continue;
199767f8919635c4928607450d9e0abb932109ceToomas Soome for (i = 0; (dv = devsw[i]) != NULL; i++) {
199767f8919635c4928607450d9e0abb932109ceToomas Soome if (strncmp(dv->dv_name, type, strlen(dv->dv_name)) == 0)
199767f8919635c4928607450d9e0abb932109ceToomas Soome goto found;
199767f8919635c4928607450d9e0abb932109ceToomas Soome }
199767f8919635c4928607450d9e0abb932109ceToomas Soome }
199767f8919635c4928607450d9e0abb932109ceToomas Soome return(ENOENT);
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soomefound:
199767f8919635c4928607450d9e0abb932109ceToomas Soome if (path != NULL)
199767f8919635c4928607450d9e0abb932109ceToomas Soome *path = s;
199767f8919635c4928607450d9e0abb932109ceToomas Soome idev = malloc(sizeof(struct ofw_devdesc));
199767f8919635c4928607450d9e0abb932109ceToomas Soome if (idev == NULL) {
199767f8919635c4928607450d9e0abb932109ceToomas Soome printf("ofw_parsedev: malloc failed\n");
199767f8919635c4928607450d9e0abb932109ceToomas Soome return ENOMEM;
199767f8919635c4928607450d9e0abb932109ceToomas Soome }
199767f8919635c4928607450d9e0abb932109ceToomas Soome strcpy(idev->d_path, name);
199767f8919635c4928607450d9e0abb932109ceToomas Soome idev->d_dev = dv;
199767f8919635c4928607450d9e0abb932109ceToomas Soome idev->d_type = dv->dv_type;
199767f8919635c4928607450d9e0abb932109ceToomas Soome if (idev->d_type == DEVT_ZFS) {
199767f8919635c4928607450d9e0abb932109ceToomas Soome p = devspec + strlen(dv->dv_name);
199767f8919635c4928607450d9e0abb932109ceToomas Soome err = zfs_parsedev((struct zfs_devdesc *)idev, p, path);
199767f8919635c4928607450d9e0abb932109ceToomas Soome if (err != 0) {
199767f8919635c4928607450d9e0abb932109ceToomas Soome free(idev);
199767f8919635c4928607450d9e0abb932109ceToomas Soome return (err);
199767f8919635c4928607450d9e0abb932109ceToomas Soome }
199767f8919635c4928607450d9e0abb932109ceToomas Soome }
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome if (dev == NULL) {
199767f8919635c4928607450d9e0abb932109ceToomas Soome free(idev);
199767f8919635c4928607450d9e0abb932109ceToomas Soome } else {
199767f8919635c4928607450d9e0abb932109ceToomas Soome *dev = idev;
199767f8919635c4928607450d9e0abb932109ceToomas Soome }
199767f8919635c4928607450d9e0abb932109ceToomas Soome return(0);
199767f8919635c4928607450d9e0abb932109ceToomas Soome}
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint
199767f8919635c4928607450d9e0abb932109ceToomas Soomeofw_setcurrdev(struct env_var *ev, int flags, const void *value)
199767f8919635c4928607450d9e0abb932109ceToomas Soome{
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct ofw_devdesc *ncurr;
199767f8919635c4928607450d9e0abb932109ceToomas Soome int rv;
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome if ((rv = ofw_parsedev(&ncurr, value, NULL)) != 0)
199767f8919635c4928607450d9e0abb932109ceToomas Soome return rv;
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome free(ncurr);
199767f8919635c4928607450d9e0abb932109ceToomas Soome env_setenv(ev->ev_name, flags | EV_NOHOOK, value, NULL, NULL);
199767f8919635c4928607450d9e0abb932109ceToomas Soome return 0;
199767f8919635c4928607450d9e0abb932109ceToomas Soome}