d1923dc8f2
* disk/powerpc/ieee1275/ofdisk.c (grub_ofdisk_iterate):
Call grub_children_iterate for device nodes of type `scsi',
`ide', or `ata'.
(grub_ofdisk_open): Remove manual device alias resolution.
Fix memory leak when device cannot be opened.
* include/grub/powerpc/ieee1275/ieee1275.h
(grub_children_iterate): New prototype.
* kern/powerpc/ieee1275/openfw.c (grub_children_iterate):
New function.
* boot/powerpc/ieee1275/ieee1275.c (grub_ieee1275_get_property):
Return -1 if args.size was -1.
139 lines
3.7 KiB
C
139 lines
3.7 KiB
C
/* openfw.c -- Open firmware support funtions. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <grub/err.h>
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/machine/ieee1275.h>
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/* Walk children of 'devpath', calling hook for each. */
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grub_err_t
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grub_children_iterate (char *devpath,
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int (*hook) (struct grub_ieee1275_devalias *alias))
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{
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grub_ieee1275_phandle_t dev;
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grub_ieee1275_phandle_t child;
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grub_ieee1275_finddevice (devpath, &dev);
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if (dev == -1)
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return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "Unknown device");
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grub_ieee1275_child (dev, &child);
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if (child == -1)
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return grub_error (GRUB_ERR_BAD_DEVICE, "Device has no children");
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do
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{
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/* XXX: Don't use hardcoded path lengths. */
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char childtype[64];
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char childpath[64];
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char childname[64];
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char fullname[64];
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struct grub_ieee1275_devalias alias;
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int actual;
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grub_ieee1275_get_property (child, "device_type", &childtype,
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sizeof childtype, &actual);
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if (actual == -1)
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continue;
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grub_ieee1275_package_to_path (child, childpath, sizeof childpath,
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&actual);
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if (actual == -1)
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continue;
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grub_ieee1275_get_property (child, "name", &childname,
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sizeof childname, &actual);
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if (actual == -1)
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continue;
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grub_sprintf(fullname, "%s/%s", devpath, childname);
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alias.type = childtype;
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alias.path = childpath;
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alias.name = fullname;
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hook (&alias);
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}
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while (grub_ieee1275_peer (child, &child));
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return 0;
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}
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/* Iterate through all device aliasses. Thisfunction can be used to
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find a device of a specific type. */
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grub_err_t
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grub_devalias_iterate (int (*hook) (struct grub_ieee1275_devalias *alias))
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{
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grub_ieee1275_phandle_t devalias;
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char aliasname[32];
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int actual;
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struct grub_ieee1275_devalias alias;
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if (grub_ieee1275_finddevice ("/aliases", &devalias))
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return -1;
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/* XXX: Is this the right way to find the first property? */
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aliasname[0] = '\0';
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/* XXX: Are the while conditions correct? */
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while (grub_ieee1275_next_property (devalias, aliasname, aliasname, &actual)
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|| actual)
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{
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grub_ieee1275_phandle_t dev;
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grub_size_t pathlen;
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char *devpath;
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/* XXX: This should be large enough for any possible case. */
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char devtype[64];
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grub_ieee1275_get_property_length (devalias, aliasname, &pathlen);
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devpath = grub_malloc (pathlen);
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if (! devpath)
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return grub_errno;
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if (grub_ieee1275_get_property (devalias, aliasname, devpath, pathlen,
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&actual))
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{
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grub_free (devpath);
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continue;
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}
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if (grub_ieee1275_finddevice (devpath, &dev))
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{
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grub_free (devpath);
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continue;
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}
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if (grub_ieee1275_get_property (dev, "device_type", devtype, sizeof devtype,
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&actual))
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{
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grub_free (devpath);
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continue;
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}
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alias.name = aliasname;
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alias.path= devpath;
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alias.type = devtype;
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hook (&alias);
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grub_free (devpath);
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}
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return 0;
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}
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