Merge tag 'disintegrate-main-20121013' of git://git.infradead.org/users/dhowells/linux-headers

Pull UAPI disintegration for include/linux/{,byteorder/}*.h from David Howells:
 "The patches contained herein do the following:

 (1) Remove kernel-only stuff in linux/ppp-comp.h from the UAPI.  I checked
     this with Paul Mackerras before I created the patch and he suggested some
     extra bits to unexport.

 (2) Remove linux/blk_types.h entirely from the UAPI as none of it is userspace
     applicable, and remove from the UAPI that part of linux/fs.h that was the
     reason for linux/blk_types.h being exported in the first place.  I
     discussed this with Jens Axboe before creating the patch.

 (3) The big patch of the series to disintegrate include/linux/*.h as a unit.
     This could be split up, though there would be collisions in moving stuff
     between the two Kbuild files when the parts are merged as that file is
     sorted alphabetically rather than being grouped by subsystem.

     Of this set of headers, 17 files have changed in the UAPI exported region
     since the 4th and only 8 since the 9th so there isn't much change in this
     area - as one might expect.

     It should be pretty obvious and straightforward if it does come to fixing
     up: stuff in __KERNEL__ guards stays where it is and stuff outside moves
     to the same file in the include/uapi/linux/ directory.

     If a new file appears then things get a bit more complicated as the
     "headers +=" line has to move to include/uapi/linux/Kbuild.  Only one new
     file has appeared since the 9th and I judge this type of event relatively
     unlikely.

 (4) A patch to disintegrate include/linux/byteorder/*.h as a unit.

  Signed-off-by: David Howells <dhowells@redhat.com>"

* tag 'disintegrate-main-20121013' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate include/linux/byteorder
  UAPI: (Scripted) Disintegrate include/linux
  UAPI: Unexport linux/blk_types.h
  UAPI: Unexport part of linux/ppp-comp.h

1 files changed, 104 insertions, 0 deletions

diff --git a/include/uapi/linux/if_pppol2tp.h b/include/uapi/linux/if_pppol2tp.h
new file mode 100644
index 00000000000..163e8adac2d
--- /dev/null
+++ b/include/uapi/linux/if_pppol2tp.h
@@ -0,0 +1,104 @@
+/***************************************************************************
+ * Linux PPP over L2TP (PPPoL2TP) Socket Implementation (RFC 2661)
+ *
+ * This file supplies definitions required by the PPP over L2TP driver
+ * (l2tp_ppp.c).  All version information wrt this file is located in l2tp_ppp.c
+ *
+ * License:
+ *		This program 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.
+ *
+ */
+
+#ifndef _UAPI__LINUX_IF_PPPOL2TP_H
+#define _UAPI__LINUX_IF_PPPOL2TP_H
+
+#include <linux/types.h>
+
+
+/* Structure used to connect() the socket to a particular tunnel UDP
+ * socket over IPv4.
+ */
+struct pppol2tp_addr {
+	__kernel_pid_t	pid;		/* pid that owns the fd.
+					 * 0 => current */
+	int	fd;			/* FD of UDP socket to use */
+
+	struct sockaddr_in addr;	/* IP address and port to send to */
+
+	__u16 s_tunnel, s_session;	/* For matching incoming packets */
+	__u16 d_tunnel, d_session;	/* For sending outgoing packets */
+};
+
+/* Structure used to connect() the socket to a particular tunnel UDP
+ * socket over IPv6.
+ */
+struct pppol2tpin6_addr {
+	__kernel_pid_t	pid;		/* pid that owns the fd.
+					 * 0 => current */
+	int	fd;			/* FD of UDP socket to use */
+
+	__u16 s_tunnel, s_session;	/* For matching incoming packets */
+	__u16 d_tunnel, d_session;	/* For sending outgoing packets */
+
+	struct sockaddr_in6 addr;	/* IP address and port to send to */
+};
+
+/* The L2TPv3 protocol changes tunnel and session ids from 16 to 32
+ * bits. So we need a different sockaddr structure.
+ */
+struct pppol2tpv3_addr {
+	__kernel_pid_t	pid;		/* pid that owns the fd.
+					 * 0 => current */
+	int	fd;			/* FD of UDP or IP socket to use */
+
+	struct sockaddr_in addr;	/* IP address and port to send to */
+
+	__u32 s_tunnel, s_session;	/* For matching incoming packets */
+	__u32 d_tunnel, d_session;	/* For sending outgoing packets */
+};
+
+struct pppol2tpv3in6_addr {
+	__kernel_pid_t	pid;		/* pid that owns the fd.
+					 * 0 => current */
+	int	fd;			/* FD of UDP or IP socket to use */
+
+	__u32 s_tunnel, s_session;	/* For matching incoming packets */
+	__u32 d_tunnel, d_session;	/* For sending outgoing packets */
+
+	struct sockaddr_in6 addr;	/* IP address and port to send to */
+};
+
+/* Socket options:
+ * DEBUG	- bitmask of debug message categories
+ * SENDSEQ	- 0 => don't send packets with sequence numbers
+ *		  1 => send packets with sequence numbers
+ * RECVSEQ	- 0 => receive packet sequence numbers are optional
+ *		  1 => drop receive packets without sequence numbers
+ * LNSMODE	- 0 => act as LAC.
+ *		  1 => act as LNS.
+ * REORDERTO	- reorder timeout (in millisecs). If 0, don't try to reorder.
+ */
+enum {
+	PPPOL2TP_SO_DEBUG	= 1,
+	PPPOL2TP_SO_RECVSEQ	= 2,
+	PPPOL2TP_SO_SENDSEQ	= 3,
+	PPPOL2TP_SO_LNSMODE	= 4,
+	PPPOL2TP_SO_REORDERTO	= 5,
+};
+
+/* Debug message categories for the DEBUG socket option */
+enum {
+	PPPOL2TP_MSG_DEBUG	= (1 << 0),	/* verbose debug (if
+						 * compiled in) */
+	PPPOL2TP_MSG_CONTROL	= (1 << 1),	/* userspace - kernel
+						 * interface */
+	PPPOL2TP_MSG_SEQ	= (1 << 2),	/* sequence numbers */
+	PPPOL2TP_MSG_DATA	= (1 << 3),	/* data packets */
+};
+
+
+
+#endif /* _UAPI__LINUX_IF_PPPOL2TP_H */