int
smbfs_filestat(kvm_t *kd, struct vnode *vp, struct vnstat *vn)
{
struct smbnode node;
struct mount mnt;
int error;
assert(kd);
assert(vn);
error = kvm_read_all(kd, (unsigned long)VTOSMB(vp), &node,
sizeof(node));
if (error != 0) {
warnx("can't read smbfs fnode at %p", (void *)VTOSMB(vp));
return (1);
}
error = kvm_read_all(kd, (unsigned long)getvnodemount(vp), &mnt,
sizeof(mnt));
if (error != 0) {
warnx("can't read mount at %p for vnode %p",
(void *)getvnodemount(vp), vp);
return (1);
}
vn->vn_fileid = node.n_ino;
if (vn->vn_fileid == 0)
vn->vn_fileid = 2;
vn->vn_fsid = mnt.mnt_stat.f_fsid.val[0];
return (0);
}
int
zfs_filestat(kvm_t *kd, struct vnode *vp, struct vnstat *vn)
{
znode_phys_t zphys;
struct mount mount, *mountptr;
uint64_t *zid;
void *znodeptr, *vnodeptr;
char *dataptr;
void *zphys_addr;
size_t len;
int size;
len = sizeof(size);
if (sysctlbyname("debug.sizeof.znode", &size, &len, NULL, 0) == -1) {
warnx("error getting sysctl");
return (1);
}
znodeptr = malloc(size);
if (znodeptr == NULL) {
warnx("error allocating memory for znode storage");
return (1);
}
/* Since we have problems including vnode.h, we'll use the wrappers. */
vnodeptr = getvnodedata(vp);
if (!kvm_read_all(kd, (unsigned long)vnodeptr, znodeptr,
(size_t)size)) {
warnx("can't read znode at %p", (void *)vnodeptr);
goto bad;
}
/*
* z_id field is stored in the third pointer. We therefore skip the two
* first bytes.
*
* Pointer to the z_phys structure is the next last pointer. Therefore
* go back two bytes from the end.
*/
dataptr = znodeptr;
zid = (uint64_t *)(dataptr + LOCATION_ZID);
zphys_addr = *(void **)(dataptr + LOCATION_ZPHYS(size));
if (!kvm_read_all(kd, (unsigned long)zphys_addr, &zphys,
sizeof(zphys))) {
warnx("can't read znode_phys at %p", zphys_addr);
goto bad;
}
/* Get the mount pointer, and read from the address. */
mountptr = getvnodemount(vp);
if (!kvm_read_all(kd, (unsigned long)mountptr, &mount, sizeof(mount))) {
warnx("can't read mount at %p", (void *)mountptr);
goto bad;
}
vn->vn_fsid = mount.mnt_stat.f_fsid.val[0];
vn->vn_fileid = *zid;
/*
* XXX: Shows up wrong in output, but UFS has this error too. Could
* be that we're casting mode-variables from 64-bit to 8-bit or simply
* error in the mode-to-string function.
*/
vn->vn_mode = (mode_t)zphys.zp_mode;
vn->vn_size = (u_long)zphys.zp_size;
free(znodeptr);
return (0);
bad:
free(znodeptr);
return (1);
}
