pkgsrc-ng/sysutils/xentools33/patches/patch-qemu-phy-devices
2013-09-26 17:14:40 +02:00

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$NetBSD: patch-qemu-phy-devices,v 1.1 2011/05/20 17:09:21 bouyer Exp $
This does 2 things:
- use the correct way to get the size of a disk device or partition (from
haad@NetBSD.org)
- if given a block device, use the character device instead.
--- ioemu/block-raw.c.orig 2009-08-06 14:56:33.000000000 +0200
+++ ioemu/block-raw.c 2011-05-20 18:55:59.000000000 +0200
@@ -63,6 +63,13 @@
#include <sys/disklabel.h>
#include <sys/dkio.h>
#endif
+#if defined(__NetBSD__)
+#include <sys/ioctl.h>
+#include <sys/disklabel.h>
+#include <sys/dkio.h>
+#include <sys/disk.h>
+#include <sys/param.h>
+#endif
//#define DEBUG_FLOPPY
@@ -101,6 +108,33 @@
{
BDRVRawState *s = bs->opaque;
int fd, open_flags, ret;
+#ifdef __NetBSD__
+ struct stat sb;
+ static char namebuf[MAXPATHLEN];
+ const char *dp;
+
+ if (lstat(filename, &sb) < 0) {
+ fprintf(stderr, "%s: stat failed: %s\n", filename, strerror(errno));
+ return -errno;
+ }
+ if (S_ISLNK(sb.st_mode)) {
+ fprintf(stderr, "%s: symolink links not supported by qemu-dm\n",
+ filename);
+ return -EINVAL;
+ }
+ if (S_ISBLK(sb.st_mode)) {
+ dp = strrchr(filename, '/');
+ if (dp == NULL) {
+ snprintf(namebuf, MAXPATHLEN, "r%s", filename);
+ } else {
+ snprintf(namebuf, MAXPATHLEN, "%.*s/r%s",
+ (int)(dp - filename), filename, dp + 1);
+ }
+ fprintf(stderr, "%s is a block device", filename);
+ filename = namebuf;
+ fprintf(stderr, ", using %s\n", filename);
+ }
+#endif
s->lseek_err_cnt = 0;
@@ -533,7 +567,7 @@
return 0;
}
-#ifdef __OpenBSD__
+#if defined(__OpenBSD__) || defined(__NetBSD__)
static int64_t raw_getlength(BlockDriverState *bs)
{
int fd = ((BDRVRawState*)bs->opaque)->fd;
@@ -541,11 +575,24 @@
if(fstat(fd, &st))
return -1;
if(S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode)){
+#ifdef __OpenBSD__
struct disklabel dl;
if(ioctl(fd, DIOCGDINFO, &dl))
return -1;
return (uint64_t)dl.d_secsize *
dl.d_partitions[DISKPART(st.st_rdev)].p_size;
+#else
+ struct dkwedge_info dkw;
+ if (ioctl(fd, DIOCGWEDGEINFO, &dkw) != -1) {
+ return dkw.dkw_size * 512;
+ } else {
+ struct disklabel dl;
+ if(ioctl(fd, DIOCGDINFO, &dl))
+ return -1;
+ return (uint64_t)dl.d_secsize *
+ dl.d_partitions[DISKPART(st.st_rdev)].p_size;
+ }
+#endif
}else
return st.st_size;
}