Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/mwl/@/boot/ofw/libofw/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/mwl/@/boot/ofw/libofw/devicename.c |
/*- * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> * 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: release/9.1.0/sys/boot/ofw/libofw/devicename.c 237766 2012-06-29 10:19:15Z avg $"); #include <stand.h> #include "bootstrap.h" #include "libofw.h" #include "../zfs/libzfs.h" static int ofw_parsedev(struct ofw_devdesc **, const char *, const char **); /* * Point (dev) at an allocated device specifier for the device matching the * path in (devspec). If it contains an explicit device specification, * use that. If not, use the default device. */ int ofw_getdev(void **vdev, const char *devspec, const char **path) { struct ofw_devdesc **dev = (struct ofw_devdesc **)vdev; int rv; /* * If it looks like this is just a path and no * device, go with the current device. */ if ((devspec == NULL) || ((strchr(devspec, '@') == NULL) && (strchr(devspec, ':') == NULL))) { if (((rv = ofw_parsedev(dev, getenv("currdev"), NULL)) == 0) && (path != NULL)) *path = devspec; return(rv); } /* * Try to parse the device name off the beginning of the devspec */ return(ofw_parsedev(dev, devspec, path)); } /* * Point (dev) at an allocated device specifier matching the string version * at the beginning of (devspec). Return a pointer to the remaining * text in (path). */ static int ofw_parsedev(struct ofw_devdesc **dev, const char *devspec, const char **path) { struct ofw_devdesc *idev; struct devsw *dv; phandle_t handle; const char *p; const char *s; char *ep; char name[256]; char type[64]; int err; int len; int i; for (p = s = devspec; *s != '\0'; p = s) { if ((s = strchr(p + 1, '/')) == NULL) s = strchr(p, '\0'); len = s - devspec; bcopy(devspec, name, len); name[len] = '\0'; if ((handle = OF_finddevice(name)) == -1) { bcopy(name, type, len); type[len] = '\0'; } else if (OF_getprop(handle, "device_type", type, sizeof(type)) == -1) continue; for (i = 0; (dv = devsw[i]) != NULL; i++) { if (strncmp(dv->dv_name, type, strlen(dv->dv_name)) == 0) goto found; } } return(ENOENT); found: if (path != NULL && *s != '\0') *path = s; idev = malloc(sizeof(struct ofw_devdesc)); if (idev == NULL) { printf("ofw_parsedev: malloc failed\n"); return ENOMEM; } strcpy(idev->d_path, name); idev->d_dev = dv; idev->d_type = dv->dv_type; if (idev->d_type == DEVT_ZFS) { p = devspec + strlen(dv->dv_name); err = zfs_parsedev((struct zfs_devdesc *)idev, p, path); if (err != 0) { free(idev); return (err); } } if (dev == NULL) { free(idev); } else { *dev = idev; } return(0); } int ofw_setcurrdev(struct env_var *ev, int flags, const void *value) { struct ofw_devdesc *ncurr; int rv; if ((rv = ofw_parsedev(&ncurr, value, NULL)) != 0) return rv; free(ncurr); env_setenv(ev->ev_name, flags | EV_NOHOOK, value, NULL, NULL); return 0; }