Add NFSv4 ACL support to libc.

This adds the following functions to the acl(3) API: acl_add_flag_np,
acl_clear_flags_np, acl_create_entry_np, acl_delete_entry_np,
acl_delete_flag_np, acl_get_extended_np, acl_get_flag_np, acl_get_flagset_np,
acl_set_extended_np, acl_set_flagset_np, acl_to_text_np, acl_is_trivial_np,
acl_strip_np, acl_get_brand_np.  Most of them are similar to what Darwin
does.  There are no backward-incompatible changes.

Approved by:    rwatson@

1 files changed, 285 insertions, 0 deletions

diff --git a/lib/libc/posix1e/acl_set_entry_type_np.3 b/lib/libc/posix1e/acl_set_entry_type_np.3
new file mode 100644
index 0000000..892a555
--- /dev/null
+++ b/lib/libc/posix1e/acl_set_entry_type_np.3
@@ -0,0 +1,285 @@
+.\"-
+.\" Copyright (c) 2008, 2009 Edward Tomasz Napierala
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR THE VOICES IN HIS HEAD BE
+.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd March 10, 2001
+.Dt ACL_SET_ENTRY_TYPE_NP 3
+.Os
+.Sh NAME
+.Nm acl_set_entry_type_np
+.Nd set NFSv4 ACL entry type
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/acl.h
+.Ft int
+.Fn acl_set_entry_type_np "acl_entry_t entry_d" "acl_entry_type_t entry_type"
+.Sh DESCRIPTION
+The
+.Fn acl_set_entry_type_np
+function
+is a non-portable call that sets the type of the ACL entry
+.Fa entry_d
+to the value referred to by
+.Fa entry_type .
+.Pp
+Valid values are:
+.Pp
+.Bl -column -offset 3n "ACL_ENTRY_TYPE_ALLOW"
+.It ACL_ENTRY_TYPE_ALLOW	"allow" type entry
+.It ACL_ENTRY_TYPE_DENY		"deny" type entry
+.El
+.Pp
+This call brands the ACL as NFSv4.
+.Sh RETURN VALUES
+.Rv -std acl_set_entry_type_np
+.Sh ERRORS
+The
+.Fn acl_set_entry_type_np
+function fails if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Argument
+.Fa entry_d
+is not a valid descriptor for an ACL entry.
+The value pointed to by
+.Fa entry_type
+is not valid.
+ACL is already branded as POSIX.1e.
+.It Bq Er ENOMEM
+The value to be returned requires more memory than is allowed
+by the hardware or system-imposed memory management constraints.
+.El
+.Sh SEE ALSO
+.Xr acl 3 ,
+.Xr acl_get_brand_np 3 ,
+.Xr acl_get_entry_type_np 3 ,
+.Xr posix1e 3
+.Sh STANDARDS
+POSIX.1e is described in IEEE POSIX.1e draft 17.
+.Sh HISTORY
+POSIX.1e support was introduced in
+.Fx 4.0 .
+The
+.Fn acl_get_entry_type_np
+function was added in
+.Fx 8.0 .
+.Sh AUTHORS
+The
+.Fn acl_get_entry_type_np
+function was written by
+.An Edward Tomasz Napierala Aq trasz@FreeBSD.org .
+.\"-
+.\" Copyright (c) 2008, 2009 Edward Tomasz Napierala
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR THE VOICES IN HIS HEAD BE
+.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd March 10, 2001
+.Dt ACL_SET_ENTRY_TYPE_NP 3
+.Os
+.Sh NAME
+.Nm acl_set_entry_type_np
+.Nd set NFSv4 ACL entry type
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/acl.h
+.Ft int
+.Fn acl_set_entry_type_np "acl_entry_t entry_d" "acl_entry_type_t entry_type"
+.Sh DESCRIPTION
+The
+.Fn acl_set_entry_type_np
+function
+is a non-portable call that sets the type of the ACL entry
+.Fa entry_d
+to the value referred to by
+.Fa entry_type .
+.Pp
+Valid values are:
+.Pp
+.Bl -column -offset 3n "ACL_ENTRY_TYPE_ALLOW"
+.It ACL_ENTRY_TYPE_ALLOW	"allow" type entry
+.It ACL_ENTRY_TYPE_DENY		"deny" type entry
+.El
+.Pp
+This call brands the ACL as NFSv4.
+.Sh RETURN VALUES
+.Rv -std acl_set_entry_type_np
+.Sh ERRORS
+The
+.Fn acl_set_entry_type_np
+function fails if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Argument
+.Fa entry_d
+is not a valid descriptor for an ACL entry.
+The value pointed to by
+.Fa entry_type
+is not valid.
+ACL is already branded as POSIX.1e.
+.It Bq Er ENOMEM
+The value to be returned requires more memory than is allowed
+by the hardware or system-imposed memory management constraints.
+.El
+.Sh SEE ALSO
+.Xr acl 3 ,
+.Xr acl_get_brand_np 3 ,
+.Xr acl_get_entry_type_np 3 ,
+.Xr posix1e 3
+.Sh STANDARDS
+POSIX.1e is described in IEEE POSIX.1e draft 17.
+.Sh HISTORY
+POSIX.1e support was introduced in
+.Fx 4.0 .
+The
+.Fn acl_get_entry_type_np
+function was added in
+.Fx 8.0 .
+.Sh AUTHORS
+The
+.Fn acl_get_entry_type_np
+function was written by
+.An Edward Tomasz Napierala Aq trasz@FreeBSD.org .
+.\"-
+.\" Copyright (c) 2008, 2009 Edward Tomasz Napierala
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR THE VOICES IN HIS HEAD BE
+.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd March 10, 2001
+.Dt ACL_SET_ENTRY_TYPE_NP 3
+.Os
+.Sh NAME
+.Nm acl_set_entry_type_np
+.Nd set NFSv4 ACL entry type
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/acl.h
+.Ft int
+.Fn acl_set_entry_type_np "acl_entry_t entry_d" "acl_entry_type_t entry_type"
+.Sh DESCRIPTION
+The
+.Fn acl_set_entry_type_np
+function
+is a non-portable call that sets the type of the ACL entry
+.Fa entry_d
+to the value referred to by
+.Fa entry_type .
+.Pp
+Valid values are:
+.Pp
+.Bl -column -offset 3n "ACL_ENTRY_TYPE_ALLOW"
+.It ACL_ENTRY_TYPE_ALLOW	"allow" type entry
+.It ACL_ENTRY_TYPE_DENY		"deny" type entry
+.El
+.Pp
+This call brands the ACL as NFSv4.
+.Sh RETURN VALUES
+.Rv -std acl_set_entry_type_np
+.Sh ERRORS
+The
+.Fn acl_set_entry_type_np
+function fails if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Argument
+.Fa entry_d
+is not a valid descriptor for an ACL entry.
+The value pointed to by
+.Fa entry_type
+is not valid.
+ACL is already branded as POSIX.1e.
+.It Bq Er ENOMEM
+The value to be returned requires more memory than is allowed
+by the hardware or system-imposed memory management constraints.
+.El
+.Sh SEE ALSO
+.Xr acl 3 ,
+.Xr acl_get_brand_np 3 ,
+.Xr acl_get_entry_type_np 3 ,
+.Xr posix1e 3
+.Sh STANDARDS
+POSIX.1e is described in IEEE POSIX.1e draft 17.
+.Sh HISTORY
+POSIX.1e support was introduced in
+.Fx 4.0 .
+The
+.Fn acl_get_entry_type_np
+function was added in
+.Fx 8.0 .
+.Sh AUTHORS
+The
+.Fn acl_get_entry_type_np
+function was written by
+.An Edward Tomasz Napierala Aq trasz@FreeBSD.org .