Prepare SPL repo to merge with ZFS repo

This commit removes everything from the repository except the core
SPL implementation for Linux.  Those files which remain have been
moved to non-conflicting locations to facilitate the merge.
The README.md and associated files have been updated accordingly.

Signed-off-by: Brian Behlendorf <[email protected]>

1 files changed, 75 insertions, 0 deletions

diff --git a/include/spl/sys/cred.h b/include/spl/sys/cred.h
new file mode 100644
index 000000000..fd063399b
--- /dev/null
+++ b/include/spl/sys/cred.h
@@ -0,0 +1,75 @@
+/*
+ *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
+ *  Copyright (C) 2007 The Regents of the University of California.
+ *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ *  Written by Brian Behlendorf <[email protected]>.
+ *  UCRL-CODE-235197
+ *
+ *  This file is part of the SPL, Solaris Porting Layer.
+ *  For details, see <http://zfsonlinux.org/>.
+ *
+ *  The SPL is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  The SPL is distributed in the hope that it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _SPL_CRED_H
+#define	_SPL_CRED_H
+
+#include <linux/module.h>
+#include <linux/cred.h>
+#include <sys/types.h>
+#include <sys/vfs.h>
+
+typedef struct cred cred_t;
+
+#define	kcred		((cred_t *)(init_task.cred))
+#define	CRED()		((cred_t *)current_cred())
+
+/* Linux 4.9 API change, GROUP_AT was removed */
+#ifndef GROUP_AT
+#define	GROUP_AT(gi, i)	((gi)->gid[i])
+#endif
+
+#ifdef HAVE_KUIDGID_T
+
+#define	KUID_TO_SUID(x)		(__kuid_val(x))
+#define	KGID_TO_SGID(x)		(__kgid_val(x))
+#define	SUID_TO_KUID(x)		(KUIDT_INIT(x))
+#define	SGID_TO_KGID(x)		(KGIDT_INIT(x))
+#define	KGIDP_TO_SGIDP(x)	(&(x)->val)
+
+#else /* HAVE_KUIDGID_T */
+
+#define	KUID_TO_SUID(x)		(x)
+#define	KGID_TO_SGID(x)		(x)
+#define	SUID_TO_KUID(x)		(x)
+#define	SGID_TO_KGID(x)		(x)
+#define	KGIDP_TO_SGIDP(x)	(x)
+
+#endif /* HAVE_KUIDGID_T */
+
+extern void crhold(cred_t *cr);
+extern void crfree(cred_t *cr);
+extern uid_t crgetuid(const cred_t *cr);
+extern uid_t crgetruid(const cred_t *cr);
+extern uid_t crgetsuid(const cred_t *cr);
+extern uid_t crgetfsuid(const cred_t *cr);
+extern gid_t crgetgid(const cred_t *cr);
+extern gid_t crgetrgid(const cred_t *cr);
+extern gid_t crgetsgid(const cred_t *cr);
+extern gid_t crgetfsgid(const cred_t *cr);
+extern int crgetngroups(const cred_t *cr);
+extern gid_t *crgetgroups(const cred_t *cr);
+extern int groupmember(gid_t gid, const cred_t *cr);
+
+#endif  /* _SPL_CRED_H */