litmus-rt.git - The LITMUS^RT kernel.

The LITMUS^RT kernel.

Bjoern Brandenburg

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author	Linus Torvalds <torvalds@linux-foundation.org>	2010-05-25 11:17:51 -0400
committer	Linus Torvalds <torvalds@linux-foundation.org>	2010-05-25 11:17:51 -0400
commit	f16a5e347835c6a0ba958535cf6e6c89d50463b8 (patch)
tree	41d2e7784f57212a3f910690e00dcd1707a7e47f /lib/decompress_inflate.c
parent	110b93842e36b17598cf24874e90d0401431cda2 (diff)
parent	7df0e0397b9a18358573274db9fdab991941062f (diff)

Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes: GFS2: Fix permissions checking for setflags ioctl() GFS2: Don't "get" xattrs for ACLs when ACLs are turned off GFS2: Rework reclaiming unlinked dinodes

Diffstat (limited to 'lib/decompress_inflate.c')

0 files changed, 0 insertions, 0 deletions

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/*
 *  Copyright 2007-2010 Red Hat, Inc.
 *  by Peter Jones <pjones@redhat.com>
 *  Copyright 2008 IBM, Inc.
 *  by Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *  Copyright 2008
 *  by Konrad Rzeszutek <ketuzsezr@darnok.org>
 *
 * This code exposes the iSCSI Boot Format Table to userland via sysfs.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License v2.0 as published by
 * the Free Software Foundation
 *
 * This program 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.
 *
 * Changelog:
 *
 *  06 Jan 2010 - Peter Jones <pjones@redhat.com>
 *    New changelog entries are in the git log from now on.  Not here.
 *
 *  14 Mar 2008 - Konrad Rzeszutek <ketuzsezr@darnok.org>
 *    Updated comments and copyrights. (v0.4.9)
 *
 *  11 Feb 2008 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *    Converted to using ibft_addr. (v0.4.8)
 *
 *   8 Feb 2008 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *    Combined two functions in one: reserve_ibft_region. (v0.4.7)
 *
 *  30 Jan 2008 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *   Added logic to handle IPv6 addresses. (v0.4.6)
 *
 *  25 Jan 2008 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *   Added logic to handle badly not-to-spec iBFT. (v0.4.5)
 *
 *   4 Jan 2008 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *   Added __init to function declarations. (v0.4.4)
 *
 *  21 Dec 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *   Updated kobject registration, combined unregister functions in one
 *   and code and style cleanup. (v0.4.3)
 *
 *   5 Dec 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *   Added end-markers to enums and re-organized kobject registration. (v0.4.2)
 *
 *   4 Dec 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *   Created 'device' sysfs link to the NIC and style cleanup. (v0.4.1)
 *
 *  28 Nov 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *   Added sysfs-ibft documentation, moved 'find_ibft' function to
 *   in its own file and added text attributes for every struct field.  (v0.4)
 *
 *  21 Nov 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *   Added text attributes emulating OpenFirmware /proc/device-tree naming.
 *   Removed binary /sysfs interface (v0.3)
 *
 *  29 Aug 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *   Added functionality in setup.c to reserve iBFT region. (v0.2)
 *
 *  27 Aug 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *   First version exposing iBFT data via a binary /sysfs. (v0.1)
 *
 */


#include <linux/blkdev.h>
#include <linux/capability.h>
#include <linux/ctype.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/iscsi_ibft.h>
#include <linux/limits.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/acpi.h>
#include <linux/iscsi_boot_sysfs.h>

#define IBFT_ISCSI_VERSION "0.5.0"
#define IBFT_ISCSI_DATE "2010-Feb-25"

MODULE_AUTHOR("Peter Jones <pjones@redhat.com> and "
	      "Konrad Rzeszutek <ketuzsezr@darnok.org>");
MODULE_DESCRIPTION("sysfs interface to BIOS iBFT information");
MODULE_LICENSE("GPL");
MODULE_VERSION(IBFT_ISCSI_VERSION);

struct ibft_hdr {
	u8 id;
	u8 version;
	u16 length;
	u8 index;
	u8 flags;
} __attribute__((__packed__));

struct ibft_control {
	struct ibft_hdr hdr;
	u16 extensions;
	u16 initiator_off;
	u16 nic0_off;
	u16 tgt0_off;
	u16 nic1_off;
	u16 tgt1_off;
} __attribute__((__packed__));

struct ibft_initiator {
	struct ibft_hdr hdr;
	char isns_server[16];
	char slp_server[16];
	char pri_radius_server[16];
	char sec_radius_server[16];
	u16 initiator_name_len;
	u16 initiator_name_off;
} __attribute__((__packed__));

struct ibft_nic {
	struct ibft_hdr hdr;
	char ip_addr[16];
	u8 subnet_mask_prefix;
	u8 origin;
	char gateway[16];
	char primary_dns[16];
	char secondary_dns[16];
	char dhcp[16];
	u16 vlan;
	char mac[6];
	u16 pci_bdf;
	u16 hostname_len;
	u16 hostname_off;
} __attribute__((__packed__));

struct ibft_tgt {
	struct ibft_hdr hdr;
	char ip_addr[16];
	u16 port;
	char lun[8];
	u8 chap_type;
	u8 nic_assoc;
	u16 tgt_name_len;
	u16 tgt_name_off;
	u16 chap_name_len;
	u16 chap_name_off;
	u16 chap_secret_len;
	u16 chap_secret_off;
	u16 rev_chap_name_len;
	u16 rev_chap_name_off;
	u16 rev_chap_secret_len;
	u16 rev_chap_secret_off;
} __attribute__((__packed__));

/*
 * The kobject different types and its names.
 *
*/
enum ibft_id {
	id_reserved = 0, /* We don't support. */
	id_control = 1, /* Should show up only once and is not exported. */
	id_initiator = 2,
	id_nic = 3,
	id_target = 4,
	id_extensions = 5, /* We don't support. */
	id_end_marker,
};

/*
 * The kobject and attribute structures.
 */

struct ibft_kobject {
	struct acpi_table_ibft *header;
	union {
		struct ibft_initiator *initiator;
		struct ibft_nic *nic;
		struct ibft_tgt *tgt;
		struct ibft_hdr *hdr;
	};
};

static struct iscsi_boot_kset *boot_kset;

static const char nulls[16];

/*
 * Helper functions to parse data properly.
 */
static ssize_t sprintf_ipaddr(char *buf, u8 *ip)
{
	char *str = buf;

	if (ip[0] == 0 && ip[1] == 0 && ip[2] == 0 && ip[3] == 0 &&
	    ip[4] == 0 && ip[5] == 0 && ip[6] == 0 && ip[7] == 0 &&
	    ip[8] == 0 && ip[9] == 0 && ip[10] == 0xff && ip[11] == 0xff) {
		/*
		 * IPV4
		 */


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