C++ (Cpp) cap_rights_is_valid Exemples

Exemple #1

Fichier : sys_capability.c Projet : 2trill2spill/freebsd

/*
 * System call to limit rights of the given capability.
 */
int
sys_cap_rights_limit(struct thread *td, struct cap_rights_limit_args *uap)
{
	cap_rights_t rights;
	int error, version;

	cap_rights_init(&rights);

	error = copyin(uap->rightsp, &rights, sizeof(rights.cr_rights[0]));
	if (error != 0)
		return (error);
	version = CAPVER(&rights);
	if (version != CAP_RIGHTS_VERSION_00)
		return (EINVAL);

	error = copyin(uap->rightsp, &rights,
	    sizeof(rights.cr_rights[0]) * CAPARSIZE(&rights));
	if (error != 0)
		return (error);
	/* Check for race. */
	if (CAPVER(&rights) != version)
		return (EINVAL);

	if (!cap_rights_is_valid(&rights))
		return (EINVAL);

	if (version != CAP_RIGHTS_VERSION) {
		rights.cr_rights[0] &= ~(0x3ULL << 62);
		rights.cr_rights[0] |= ((uint64_t)CAP_RIGHTS_VERSION << 62);
	}
#ifdef KTRACE
	if (KTRPOINT(td, KTR_STRUCT))
		ktrcaprights(&rights);
#endif

	AUDIT_ARG_FD(uap->fd);
	AUDIT_ARG_RIGHTS(&rights);
	return (kern_cap_rights_limit(td, uap->fd, &rights));
}

Exemple #2

Fichier : sys_capability.c Projet : ChaosJohn/freebsd

/*
 * System call to limit rights of the given capability.
 */
int
sys_cap_rights_limit(struct thread *td, struct cap_rights_limit_args *uap)
{
	struct filedesc *fdp;
	cap_rights_t rights;
	int error, fd, version;

	cap_rights_init(&rights);

	error = copyin(uap->rightsp, &rights, sizeof(rights.cr_rights[0]));
	if (error != 0)
		return (error);
	version = CAPVER(&rights);
	if (version != CAP_RIGHTS_VERSION_00)
		return (EINVAL);

	error = copyin(uap->rightsp, &rights,
	    sizeof(rights.cr_rights[0]) * CAPARSIZE(&rights));
	if (error != 0)
		return (error);
	/* Check for race. */
	if (CAPVER(&rights) != version)
		return (EINVAL);

	if (!cap_rights_is_valid(&rights))
		return (EINVAL);

	if (version != CAP_RIGHTS_VERSION) {
		rights.cr_rights[0] &= ~(0x3ULL << 62);
		rights.cr_rights[0] |= ((uint64_t)CAP_RIGHTS_VERSION << 62);
	}
#ifdef KTRACE
	if (KTRPOINT(td, KTR_STRUCT))
		ktrcaprights(&rights);
#endif

	fd = uap->fd;

	AUDIT_ARG_FD(fd);
	AUDIT_ARG_RIGHTS(&rights);

	fdp = td->td_proc->p_fd;
	FILEDESC_XLOCK(fdp);
	if (fget_locked(fdp, fd) == NULL) {
		FILEDESC_XUNLOCK(fdp);
		return (EBADF);
	}
	error = _cap_check(cap_rights(fdp, fd), &rights, CAPFAIL_INCREASE);
	if (error == 0) {
		fdp->fd_ofiles[fd].fde_rights = rights;
		if (!cap_rights_is_set(&rights, CAP_IOCTL)) {
			free(fdp->fd_ofiles[fd].fde_ioctls, M_FILECAPS);
			fdp->fd_ofiles[fd].fde_ioctls = NULL;
			fdp->fd_ofiles[fd].fde_nioctls = 0;
		}
		if (!cap_rights_is_set(&rights, CAP_FCNTL))
			fdp->fd_ofiles[fd].fde_fcntls = 0;
	}
	FILEDESC_XUNLOCK(fdp);
	return (error);
}