Differential D38933 Diff 121184 sys/compat/linux/linux_uid16.c

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sys/compat/linux/linux_uid16.c

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	DUMMY(getresuid16);			DUMMY(getresuid16);
	DUMMY(getresgid16);			DUMMY(getresgid16);

	#define CAST_NOCHG(x) ((x == 0xFFFF) ? -1 : x)			#define CAST_NOCHG(x) ((x == 0xFFFF) ? -1 : x)

	int			int
	linux_chown16(struct thread td, struct linux_chown16_args args)			linux_chown16(struct thread td, struct linux_chown16_args args)
	{			{
	char *path;
	int error;

	if (!LUSECONVPATH(td) && !SDT_PROBES_ENABLED()) {			return (kern_fchownat(td, AT_FDCWD, args->path, UIO_USERSPACE,
	error = kern_fchownat(td, AT_FDCWD, args->path, UIO_USERSPACE,			CAST_NOCHG(args->uid), CAST_NOCHG(args->gid), 0));
	CAST_NOCHG(args->uid), CAST_NOCHG(args->gid), 0);
	} else {
	LCONVPATHEXIST(args->path, &path);
	/*
	* The DTrace probes have to be after the LCONVPATHEXIST, as
	* LCONVPATHEXIST may return on its own and we do not want to
	* have a stray entry without the corresponding return.
	*/
	LIN_SDT_PROBE1(uid16, linux_chown16, conv_path, path);

	error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE,
	CAST_NOCHG(args->uid), CAST_NOCHG(args->gid), 0);
	LFREEPATH(path);
	}			}
	return (error);
	}

	int			int
	linux_lchown16(struct thread td, struct linux_lchown16_args args)			linux_lchown16(struct thread td, struct linux_lchown16_args args)
	{			{
	char *path;
	int error;

	if (!LUSECONVPATH(td) && !SDT_PROBES_ENABLED()) {			return (kern_fchownat(td, AT_FDCWD, args->path, UIO_USERSPACE,
	error = kern_fchownat(td, AT_FDCWD, args->path, UIO_USERSPACE,			CAST_NOCHG(args->uid), CAST_NOCHG(args->gid), AT_SYMLINK_NOFOLLOW));
	CAST_NOCHG(args->uid), CAST_NOCHG(args->gid), AT_SYMLINK_NOFOLLOW);
	} else {
	LCONVPATHEXIST(args->path, &path);

	/*
	* The DTrace probes have to be after the LCONVPATHEXIST, as
	* LCONVPATHEXIST may return on its own and we do not want to
	* have a stray entry without the corresponding return.
	*/
	LIN_SDT_PROBE1(uid16, linux_lchown16, conv_path, path);

	error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE,
	CAST_NOCHG(args->uid), CAST_NOCHG(args->gid), AT_SYMLINK_NOFOLLOW);
	LFREEPATH(path);
	}
	return (error);
	}			}

	int			int
	linux_setgroups16(struct thread td, struct linux_setgroups16_args args)			linux_setgroups16(struct thread td, struct linux_setgroups16_args args)
	{			{
	struct ucred newcred, oldcred;			struct ucred newcred, oldcred;
	l_gid16_t *linux_gidset;			l_gid16_t *linux_gidset;
	gid_t *bsd_gidset;			gid_t *bsd_gidset;
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