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, 156 insertions, 0 deletions

diff --git a/include/uapi/linux/if_pppox.h b/include/uapi/linux/if_pppox.h
new file mode 100644
index 00000000000..0b46fd57c8f
--- /dev/null
+++ b/include/uapi/linux/if_pppox.h
@@ -0,0 +1,156 @@
+/***************************************************************************
+ * Linux PPP over X - Generic PPP transport layer sockets
+ * Linux PPP over Ethernet (PPPoE) Socket Implementation (RFC 2516) 
+ *
+ * This file supplies definitions required by the PPP over Ethernet driver
+ * (pppox.c).  All version information wrt this file is located in pppox.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_PPPOX_H
+#define _UAPI__LINUX_IF_PPPOX_H
+
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+#include <linux/socket.h>
+#include <linux/if_ether.h>
+#include <linux/if_pppol2tp.h>
+
+/* For user-space programs to pick up these definitions
+ * which they wouldn't get otherwise without defining __KERNEL__
+ */
+#ifndef AF_PPPOX
+#define AF_PPPOX	24
+#define PF_PPPOX	AF_PPPOX
+#endif /* !(AF_PPPOX) */
+
+/************************************************************************ 
+ * PPPoE addressing definition 
+ */ 
+typedef __be16 sid_t;
+struct pppoe_addr {
+	sid_t         sid;                    /* Session identifier */
+	unsigned char remote[ETH_ALEN];       /* Remote address */
+	char          dev[IFNAMSIZ];          /* Local device to use */
+}; 
+ 
+/************************************************************************ 
+ * PPTP addressing definition
+ */
+struct pptp_addr {
+	__be16		call_id;
+	struct in_addr	sin_addr;
+};
+
+/************************************************************************
+ * Protocols supported by AF_PPPOX
+ */
+#define PX_PROTO_OE    0 /* Currently just PPPoE */
+#define PX_PROTO_OL2TP 1 /* Now L2TP also */
+#define PX_PROTO_PPTP  2
+#define PX_MAX_PROTO   3
+
+struct sockaddr_pppox {
+	__kernel_sa_family_t sa_family;       /* address family, AF_PPPOX */
+	unsigned int    sa_protocol;          /* protocol identifier */
+	union {
+		struct pppoe_addr  pppoe;
+		struct pptp_addr   pptp;
+	} sa_addr;
+} __packed;
+
+/* The use of the above union isn't viable because the size of this
+ * struct must stay fixed over time -- applications use sizeof(struct
+ * sockaddr_pppox) to fill it. We use a protocol specific sockaddr
+ * type instead.
+ */
+struct sockaddr_pppol2tp {
+	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
+	unsigned int    sa_protocol;    /* protocol identifier */
+	struct pppol2tp_addr pppol2tp;
+} __packed;
+
+struct sockaddr_pppol2tpin6 {
+	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
+	unsigned int    sa_protocol;    /* protocol identifier */
+	struct pppol2tpin6_addr pppol2tp;
+} __packed;
+
+/* The L2TPv3 protocol changes tunnel and session ids from 16 to 32
+ * bits. So we need a different sockaddr structure.
+ */
+struct sockaddr_pppol2tpv3 {
+	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
+	unsigned int    sa_protocol;    /* protocol identifier */
+	struct pppol2tpv3_addr pppol2tp;
+} __packed;
+
+struct sockaddr_pppol2tpv3in6 {
+	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
+	unsigned int    sa_protocol;    /* protocol identifier */
+	struct pppol2tpv3in6_addr pppol2tp;
+} __packed;
+
+/*********************************************************************
+ *
+ * ioctl interface for defining forwarding of connections
+ *
+ ********************************************************************/
+
+#define PPPOEIOCSFWD	_IOW(0xB1 ,0, size_t)
+#define PPPOEIOCDFWD	_IO(0xB1 ,1)
+/*#define PPPOEIOCGFWD	_IOWR(0xB1,2, size_t)*/
+
+/* Codes to identify message types */
+#define PADI_CODE	0x09
+#define PADO_CODE	0x07
+#define PADR_CODE	0x19
+#define PADS_CODE	0x65
+#define PADT_CODE	0xa7
+struct pppoe_tag {
+	__be16 tag_type;
+	__be16 tag_len;
+	char tag_data[0];
+} __attribute__ ((packed));
+
+/* Tag identifiers */
+#define PTT_EOL		__cpu_to_be16(0x0000)
+#define PTT_SRV_NAME	__cpu_to_be16(0x0101)
+#define PTT_AC_NAME	__cpu_to_be16(0x0102)
+#define PTT_HOST_UNIQ	__cpu_to_be16(0x0103)
+#define PTT_AC_COOKIE	__cpu_to_be16(0x0104)
+#define PTT_VENDOR 	__cpu_to_be16(0x0105)
+#define PTT_RELAY_SID	__cpu_to_be16(0x0110)
+#define PTT_SRV_ERR     __cpu_to_be16(0x0201)
+#define PTT_SYS_ERR  	__cpu_to_be16(0x0202)
+#define PTT_GEN_ERR  	__cpu_to_be16(0x0203)
+
+struct pppoe_hdr {
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+	__u8 ver : 4;
+	__u8 type : 4;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+	__u8 type : 4;
+	__u8 ver : 4;
+#else
+#error	"Please fix <asm/byteorder.h>"
+#endif
+	__u8 code;
+	__be16 sid;
+	__be16 length;
+	struct pppoe_tag tag[0];
+} __packed;
+
+/* Length of entire PPPoE + PPP header */
+#define PPPOE_SES_HLEN	8
+
+
+#endif /* _UAPI__LINUX_IF_PPPOX_H */