/*
* System call to query the rights mask associated with a capability.
*/
int
sys_cap_rights_get(struct thread *td, struct cap_rights_get_args *uap)
{
struct filedesc *fdp;
cap_rights_t rights;
int fd;
fd = uap->fd;
AUDIT_ARG_FD(fd);
fdp = td->td_proc->p_fd;
FILEDESC_SLOCK(fdp);
if (fget_locked(fdp, fd) == NULL) {
FILEDESC_SUNLOCK(fdp);
return (EBADF);
}
rights = cap_rights(fdp, fd);
FILEDESC_SUNLOCK(fdp);
return (copyout(&rights, uap->rightsp, sizeof(*uap->rightsp)));
}
int
sys_cap_fcntls_get(struct thread *td, struct cap_fcntls_get_args *uap)
{
struct filedesc *fdp;
uint32_t rights;
int fd;
fd = uap->fd;
AUDIT_ARG_FD(fd);
fdp = td->td_proc->p_fd;
FILEDESC_SLOCK(fdp);
if (fget_locked(fdp, fd) == NULL) {
FILEDESC_SUNLOCK(fdp);
return (EBADF);
}
rights = fdp->fd_ofiles[fd].fde_fcntls;
FILEDESC_SUNLOCK(fdp);
return (copyout(&rights, uap->fcntlrightsp, sizeof(rights)));
}
static int
fdesc_readdir(struct vop_readdir_args *ap)
{
struct uio *uio = ap->a_uio;
struct filedesc *fdp;
struct dirent d;
struct dirent *dp = &d;
int error, i, off, fcnt;
if (VTOFDESC(ap->a_vp)->fd_type != Froot)
panic("fdesc_readdir: not dir");
if (ap->a_ncookies != NULL)
*ap->a_ncookies = 0;
off = (int)uio->uio_offset;
if (off != uio->uio_offset || off < 0 || (u_int)off % UIO_MX != 0 ||
uio->uio_resid < UIO_MX)
return (EINVAL);
i = (u_int)off / UIO_MX;
fdp = uio->uio_td->td_proc->p_fd;
error = 0;
fcnt = i - 2; /* The first two nodes are `.' and `..' */
FILEDESC_SLOCK(fdp);
while (i < fdp->fd_nfiles + 2 && uio->uio_resid >= UIO_MX) {
bzero((caddr_t)dp, UIO_MX);
switch (i) {
case 0: /* `.' */
case 1: /* `..' */
dp->d_fileno = i + FD_ROOT;
dp->d_namlen = i + 1;
dp->d_reclen = UIO_MX;
bcopy("..", dp->d_name, dp->d_namlen);
dp->d_name[i + 1] = '\0';
dp->d_type = DT_DIR;
break;
default:
if (fdp->fd_ofiles[fcnt].fde_file == NULL)
break;
dp->d_namlen = sprintf(dp->d_name, "%d", fcnt);
dp->d_reclen = UIO_MX;
dp->d_type = DT_CHR;
dp->d_fileno = i + FD_DESC;
break;
}
if (dp->d_namlen != 0) {
/*
* And ship to userland
*/
FILEDESC_SUNLOCK(fdp);
error = uiomove(dp, UIO_MX, uio);
if (error)
goto done;
FILEDESC_SLOCK(fdp);
}
i++;
fcnt++;
}
FILEDESC_SUNLOCK(fdp);
done:
uio->uio_offset = i * UIO_MX;
return (error);
}
