Ejemplos de cap_ioctl_limit_check en C++ (Cpp)

Ejemplo n.º 1

int
sys_cap_ioctls_limit(struct thread *td, struct cap_ioctls_limit_args *uap)
{
	struct filedesc *fdp;
	u_long *cmds, *ocmds;
	size_t ncmds;
	int error, fd;

	fd = uap->fd;
	ncmds = uap->ncmds;

	AUDIT_ARG_FD(fd);

	if (ncmds > 256)	/* XXX: Is 256 sane? */
		return (EINVAL);

	if (ncmds == 0) {
		cmds = NULL;
	} else {
		cmds = malloc(sizeof(cmds[0]) * ncmds, M_TEMP, M_WAITOK);
		error = copyin(uap->cmds, cmds, sizeof(cmds[0]) * ncmds);
		if (error != 0) {
			free(cmds, M_TEMP);
			return (error);
		}
	}

	fdp = td->td_proc->p_fd;
	FILEDESC_XLOCK(fdp);

	if (fget_locked(fdp, fd) == NULL) {
		error = EBADF;
		goto out;
	}

	error = cap_ioctl_limit_check(fdp, fd, cmds, ncmds);
	if (error != 0)
		goto out;

	ocmds = fdp->fd_ofiles[fd].fde_ioctls;
	fdp->fd_ofiles[fd].fde_ioctls = cmds;
	fdp->fd_ofiles[fd].fde_nioctls = ncmds;

	cmds = ocmds;
	error = 0;
out:
	FILEDESC_XUNLOCK(fdp);
	free(cmds, M_TEMP);
	return (error);
}

Ejemplo n.º 2

Archivo: sys_capability.c Proyecto: FreeBSDFoundation/freebsd

int
kern_cap_ioctls_limit(struct thread *td, int fd, u_long *cmds, size_t ncmds)
{
	struct filedesc *fdp;
	struct filedescent *fdep;
	u_long *ocmds;
	int error;

	AUDIT_ARG_FD(fd);

	if (ncmds > IOCTLS_MAX_COUNT) {
		error = EINVAL;
		goto out_free;
	}

	fdp = td->td_proc->p_fd;
	FILEDESC_XLOCK(fdp);

	fdep = fdeget_locked(fdp, fd);
	if (fdep == NULL) {
		error = EBADF;
		goto out;
	}

	error = cap_ioctl_limit_check(fdep, cmds, ncmds);
	if (error != 0)
		goto out;

	ocmds = fdep->fde_ioctls;
	fdep->fde_ioctls = cmds;
	fdep->fde_nioctls = ncmds;

	cmds = ocmds;
	error = 0;
out:
	FILEDESC_XUNLOCK(fdp);
out_free:
	free(cmds, M_FILECAPS);
	return (error);
}