static void
test_rsetattr (void)
{
Npfcall *fc, *fc2;
if (!(fc = np_create_rsetattr ()))
msg_exit ("out of memory");
fc2 = _rcv_buf (fc, P9_RSETATTR, __FUNCTION__);
free (fc);
free (fc2);
}
Npfcall*
diod_setattr (Npfid *fid, u32 valid, u32 mode, u32 uid, u32 gid, u64 size,
u64 atime_sec, u64 atime_nsec, u64 mtime_sec, u64 mtime_nsec)
{
Npfcall *ret;
Fid *f = fid->aux;
int ctime_updated = 0;
if ((f->xflags & XFLAGS_RO)) {
np_uerror (EROFS);
goto error_quiet;
}
if ((valid & P9_SETATTR_MODE)) { /* N.B. derefs symlinks */
if (chmod (f->path, mode) < 0) {
np_uerror(errno);
goto error_quiet;
}
ctime_updated = 1;
}
if ((valid & P9_SETATTR_UID) || (valid & P9_SETATTR_GID)) {
if (lchown (f->path, (valid & P9_SETATTR_UID) ? uid : -1,
(valid & P9_SETATTR_GID) ? gid : -1) < 0) {
np_uerror(errno);
goto error_quiet;
}
ctime_updated = 1;
}
if ((valid & P9_SETATTR_SIZE)) {
if (truncate (f->path, size) < 0) {
np_uerror(errno);
goto error_quiet;
}
ctime_updated = 1;
}
if ((valid & P9_SETATTR_ATIME) || (valid & P9_SETATTR_MTIME)) {
#if HAVE_UTIMENSAT
struct timespec ts[2];
if (!(valid & P9_SETATTR_ATIME)) {
ts[0].tv_sec = 0;
ts[0].tv_nsec = UTIME_OMIT;
} else if (!(valid & P9_SETATTR_ATIME_SET)) {
ts[0].tv_sec = 0;
ts[0].tv_nsec = UTIME_NOW;
} else {
ts[0].tv_sec = atime_sec;
ts[0].tv_nsec = atime_nsec;
}
if (!(valid & P9_SETATTR_MTIME)) {
ts[1].tv_sec = 0;
ts[1].tv_nsec = UTIME_OMIT;
} else if (!(valid & P9_SETATTR_MTIME_SET)) {
ts[1].tv_sec = 0;
ts[1].tv_nsec = UTIME_NOW;
} else {
ts[1].tv_sec = mtime_sec;
ts[1].tv_nsec = mtime_nsec;
}
if (utimensat(-1, f->path, ts, AT_SYMLINK_NOFOLLOW) < 0) {
np_uerror(errno);
goto error_quiet;
}
#else /* HAVE_UTIMENSAT */
struct timeval tv[2], now, *tvp;
struct stat sb;
if ((valid & P9_SETATTR_ATIME) && !(valid & P9_SETATTR_ATIME_SET)
&& (valid & P9_SETATTR_MTIME) && !(valid & P9_SETATTR_MTIME_SET)) {
tvp = NULL; /* set both to now */
} else {
if (lstat(f->path, &sb) < 0) {
np_uerror (errno);
goto error_quiet;
}
if (gettimeofday (&now, NULL) < 0) {
np_uerror (errno);
goto error_quiet;
}
if (!(valid & P9_SETATTR_ATIME)) {
tv[0].tv_sec = sb.st_atim.tv_sec;
tv[0].tv_usec = sb.st_atim.tv_nsec / 1000;
} else if (!(valid & P9_SETATTR_ATIME_SET)) {
tv[0].tv_sec = now.tv_sec;
tv[0].tv_usec = now.tv_usec;
} else {
tv[0].tv_sec = atime_sec;
tv[0].tv_usec = atime_nsec / 1000;
}
if (!(valid & P9_SETATTR_MTIME)) {
tv[1].tv_sec = sb.st_mtim.tv_sec;
tv[1].tv_usec = sb.st_mtim.tv_nsec / 1000;
} else if (!(valid & P9_SETATTR_MTIME_SET)) {
tv[1].tv_sec = now.tv_sec;
tv[1].tv_usec = now.tv_usec;
} else {
tv[1].tv_sec = mtime_sec;
tv[1].tv_usec = mtime_nsec / 1000;
}
tvp = tv;
}
if (utimes (f->path, tvp) < 0) {
np_uerror(errno);
goto error_quiet;
}
#endif /* HAVE_UTIMENSAT */
ctime_updated = 1;
}
if ((valid & P9_SETATTR_CTIME) && !ctime_updated) {
if (lchown (f->path, -1, -1) < 0) {
np_uerror (errno);
goto error_quiet;
}
}
if (!(ret = np_create_rsetattr())) {
np_uerror (ENOMEM);
goto error;
}
return ret;
error:
errn (np_rerror (), "diod_setattr %s@%s:%s (valid=0x%x)",
fid->user->uname, np_conn_get_client_id (fid->conn), f->path, valid);
error_quiet:
return NULL;
}
Npfcall*
diod_setattr (Npfid *fid, u32 valid, u32 mode, u32 uid, u32 gid, u64 size,
u64 atime_sec, u64 atime_nsec, u64 mtime_sec, u64 mtime_nsec)
{
Npfcall *ret = NULL;
Fid *f = fid->aux;
int fidstat_updated = 0;
int ctime_updated = 0;
if ((f->xflags & XFLAGS_RO)) {
np_uerror (EROFS);
goto error_quiet;
}
if ((valid & P9_SETATTR_MODE) || (valid & P9_SETATTR_SIZE)) {
if (_fidstat(f) < 0)
goto error_quiet;
fidstat_updated = 1;
if (S_ISLNK(f->stat.st_mode)) {
msg ("diod_setattr: unhandled mode/size update on symlink");
np_uerror(EINVAL);
goto error;
}
}
/* chmod (N.B. dereferences symlinks) */
if ((valid & P9_SETATTR_MODE)) {
if (chmod (f->path, mode) < 0) {
np_uerror(errno);
goto error_quiet;
}
ctime_updated = 1;
}
/* chown */
if ((valid & P9_SETATTR_UID) || (valid & P9_SETATTR_GID)) {
if (lchown (f->path, (valid & P9_SETATTR_UID) ? uid : -1,
(valid & P9_SETATTR_GID) ? gid : -1) < 0) {
np_uerror(errno);
goto error_quiet;
}
ctime_updated = 1;
}
/* truncate (N.B. dereferences symlinks) */
if ((valid & P9_SETATTR_SIZE)) {
if (truncate (f->path, size) < 0) {
np_uerror(errno);
goto error_quiet;
}
ctime_updated = 1;
}
/* utimes */
if ((valid & P9_SETATTR_ATIME) || (valid & P9_SETATTR_MTIME)) {
#if HAVE_UTIMENSAT
struct timespec ts[2];
if (!(valid & P9_SETATTR_ATIME)) {
ts[0].tv_sec = 0;
ts[0].tv_nsec = UTIME_OMIT;
} else if (!(valid & P9_SETATTR_ATIME_SET)) {
ts[0].tv_sec = 0;
ts[0].tv_nsec = UTIME_NOW;
} else {
ts[0].tv_sec = atime_sec;
ts[0].tv_nsec = atime_nsec;
}
if (!(valid & P9_SETATTR_MTIME)) {
ts[1].tv_sec = 0;
ts[1].tv_nsec = UTIME_OMIT;
} else if (!(valid & P9_SETATTR_MTIME_SET)) {
ts[1].tv_sec = 0;
ts[1].tv_nsec = UTIME_NOW;
} else {
ts[1].tv_sec = mtime_sec;
ts[1].tv_nsec = mtime_nsec;
}
if (utimensat(-1, f->path, ts, AT_SYMLINK_NOFOLLOW) < 0) {
np_uerror(errno);
goto error_quiet;
}
ctime_updated = 1;
#else /* HAVE_UTIMENSAT */
struct timeval tv[2], now, *tvp;
/* N.B. this utimes () implementation loses atomicity and precision.
*/
if ((valid & P9_SETATTR_ATIME) && !(valid & P9_SETATTR_ATIME_SET)
&& (valid & P9_SETATTR_MTIME) && !(valid & P9_SETATTR_MTIME_SET)) {
tvp = NULL; /* set both to now */
} else {
if (!fidstat_updated && _fidstat(f) < 0)
goto error_quiet;
fidstat_updated = 1;
if (gettimeofday (&now, NULL) < 0) {
np_uerror (errno);
goto error_quiet;
}
if (!(valid & P9_SETATTR_ATIME)) {
tv[0].tv_sec = f->stat.st_atim.tv_sec;
tv[0].tv_usec = f->stat.st_atim.tv_nsec / 1000;
} else if (!(valid & P9_SETATTR_ATIME_SET)) {
tv[0].tv_sec = now.tv_sec;
tv[0].tv_usec = now.tv_usec;
} else {
tv[0].tv_sec = atime_sec;
tv[0].tv_usec = atime_nsec / 1000;
}
if (!(valid & P9_SETATTR_MTIME)) {
tv[1].tv_sec = f->stat.st_mtim.tv_sec;
tv[1].tv_usec = f->stat.st_mtim.tv_nsec / 1000;
} else if (!(valid & P9_SETATTR_MTIME_SET)) {
tv[1].tv_sec = now.tv_sec;
tv[1].tv_usec = now.tv_usec;
} else {
tv[1].tv_sec = mtime_sec;
tv[1].tv_usec = mtime_nsec / 1000;
}
tvp = tv;
}
if (utimes (f->path, tvp) < 0) {
np_uerror(errno);
goto error_quiet;
}
ctime_updated = 1;
#endif
}
if ((valid & P9_SETATTR_CTIME) && !ctime_updated) {
if (lchown (f->path, -1, -1) < 0) {
np_uerror (errno);
goto error_quiet;
}
}
if (!(ret = np_create_rsetattr())) {
np_uerror (ENOMEM);
goto error;
}
return ret;
error:
errn (np_rerror (), "diod_setattr %s@%s:%s (valid=0x%x)",
fid->user->uname, np_conn_get_client_id (fid->conn), f->path, valid);
error_quiet:
if (ret)
free (ret);
return NULL;
}
