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Hacks to get zdb working on NetBSD: 

- Force accessing raw device but we're passed the block device.
 - Deal with wedges not returning their size on a stat(2) and use
   the DIOCGMEDIASIZE ioctl instead.

Ok chs@.
This commit is contained in:
simonb 2021-10-27 11:35:23 +00:00
parent 1971734547
commit 2dab5a2679
1 changed files with 32 additions and 0 deletions
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32
external/cddl/osnet/dist/lib/libzpool/common/kernel.c vendored
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@ -41,6 +41,11 @@
#include <sys/utsname.h>
#include <sys/systeminfo.h>
#ifdef __NetBSD__
#include <sys/dkio.h>
#include <sys/ioctl.h>
#endif
/*
* Emulation of kernel services in userland.
*/
@ -447,6 +452,17 @@ vn_open(char *path, int x1, int flags, int mode, vnode_t **vpp, int x2, int x3)
*/
if (strncmp(path, "/dev/", 5) == 0) {
char *dsk;
#ifdef __NetBSD__
/*
* For NetBSD, we've been passed in a block device name
* but need to convert to the character device name.
* XXX a bit ugly...
*/
char rawpath[MAXPATHLEN];
snprintf(rawpath, sizeof(rawpath), "/dev/r%s", path + 5);
path = rawpath; /* gets strdup()'d below */
#endif /* __NetBSD__ */
fd = open64(path, O_RDONLY);
if (fd == -1)
return (errno);
@ -454,6 +470,14 @@ vn_open(char *path, int x1, int flags, int mode, vnode_t **vpp, int x2, int x3)
close(fd);
return (errno);
}
#ifdef __NetBSD__
if (st.st_size == 0) {
off_t dsize;
if (ioctl(fd, DIOCGMEDIASIZE, &dsize) == 0)
st.st_size = dsize;
}
#endif /* __NetBSD__ */
close(fd);
(void) sprintf(realpath, "%s", path);
dsk = strstr(path, "/dsk/");
@ -587,6 +611,14 @@ fop_getattr(vnode_t *vp, vattr_t *vap)
close(vp->v_fd);
return (errno);
}
#ifdef __NetBSD__
if (st.st_size == 0) {
off_t dsize;
if (ioctl(vp->v_fd, DIOCGMEDIASIZE, &dsize) == 0)
st.st_size = dsize;
}
#endif /* __NetBSD__ */
vap->va_size = st.st_size;
return (0);