<commit_before>/*******************************************************************************
 * This file contains tcm implementation using v4 configfs fabric infrastructure
 * for QLogic target mode HBAs
 *
 * ?? Copyright 2010-2011 RisingTide Systems LLC.
 *
 * Licensed to the Linux Foundation under the General Public License (GPL)
 * version 2.
 *
 * Author: <NAME> <<EMAIL>>
 *
 * tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from
 * the TCM_FC / Open-FCoE.org fabric module.
 *
 * Copyright (c) 2010 Cisco Systems, Inc
 *
 * 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.
 *
 * 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.
 ****************************************************************************/


#include <linux/module.h>
#include <linux/moduleparam.h>
#include <generated/utsrelease.h>
#include <linux/utsname.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/kthread.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/configfs.h>
#include <linux/ctype.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <asm/unaligned.h>
#include <scsi/scsi.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_cmnd.h>
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>

#include "qla_def.h"
#include "qla_target.h"
#include "tcm_qla2xxx.h"

struct workqueue_struct *tcm_qla2xxx_free_wq;
struct workqueue_struct *tcm_qla2xxx_cmd_wq;

static int tcm_qla2xxx_check_true(struct se_portal_group *se_tpg)
{
	return 1;
}

static int tcm_qla2xxx_check_false(struct se_portal_group *se_tpg)
{
	return 0;
}

/*
 * Parse WWN.
 * If strict, we require lower-case hex and colon separators to be sure
 * the name is the same as what would be generated by ft_format_wwn()
 * so the name and wwn are mapped one-to-one.
 */
static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict)
{
	const char *cp;
	char c;
	u32 nibble;
	u32 byte = 0;
	u32 pos = 0;
	u32 err;

	*wwn = 0;
	for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) {
		c = *cp;
		if (c == '\n' && cp[1] == '\0')
			continue;
		if (strict && pos++ == 2 && byte++ < 7) {
			pos = 0;
			if (c == ':')
				continue;
			err = 1;
			goto fail;
		}
		if (c == '\0') {
			err = 2;
			if (strict && byte != 8)
				goto fail;
			return cp - name;
		}
		err = 3;
		if (isdigit(c))
			nibble = c - '0';
		else if (isxdigit(c) && (islower(c) || !strict))
			nibble = tolower(c) - 'a' + 10;
		else
			goto fail;
		*wwn = (*wwn << 4) | nibble;
	}
	err = 4;
fail:
	pr_debug("err %u len %zu pos %u byte %u\n",
			err, cp - name, pos, byte);
	return -1;
}

static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn)
{
	u8 b[8];

	put_unaligned_be64(wwn, b);
	return snprintf(buf, len,
		"%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
		b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]);
}

static char *tcm_qla2xxx_get_fabric_name(void)
{
	return "qla2xxx";
}

/*
 * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn
 */
static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm)
{
	unsigned int i, j, value;
	u8 wwn[8];

	memset(wwn, 0, sizeof(wwn));

	/* Validate and store the new name */
	for (i = 0, j = 0; i < 16; i++) {
		value = hex_to_bin(*ns++);
		if (value >= 0)
			j = (j << 4) | value;
		else
			return -EINVAL;

		if (i % 2) {
			wwn[i/2] = j & 0xff;
			j = 0;
		}
	}

	*nm = wwn_to_u64(wwn);<commit_msg>tcm_qla2xxx: Handle malformed wwn strings properly<commit_after>/*******************************************************************************
 * This file contains tcm implementation using v4 configfs fabric infrastructure
 * for QLogic target mode HBAs
 *
 * ?? Copyright 2010-2011 RisingTide Systems LLC.
 *
 * Licensed to the Linux Foundation under the General Public License (GPL)
 * version 2.
 *
 * Author: <NAME> <<EMAIL>>
 *
 * tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from
 * the TCM_FC / Open-FCoE.org fabric module.
 *
 * Copyright (c) 2010 Cisco Systems, Inc
 *
 * 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.
 *
 * 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.
 ****************************************************************************/


#include <linux/module.h>
#include <linux/moduleparam.h>
#include <generated/utsrelease.h>
#include <linux/utsname.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/kthread.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/configfs.h>
#include <linux/ctype.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <asm/unaligned.h>
#include <scsi/scsi.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_cmnd.h>
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>

#include "qla_def.h"
#include "qla_target.h"
#include "tcm_qla2xxx.h"

struct workqueue_struct *tcm_qla2xxx_free_wq;
struct workqueue_struct *tcm_qla2xxx_cmd_wq;

static int tcm_qla2xxx_check_true(struct se_portal_group *se_tpg)
{
	return 1;
}

static int tcm_qla2xxx_check_false(struct se_portal_group *se_tpg)
{
	return 0;
}

/*
 * Parse WWN.
 * If strict, we require lower-case hex and colon separators to be sure
 * the name is the same as what would be generated by ft_format_wwn()
 * so the name and wwn are mapped one-to-one.
 */
static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict)
{
	const char *cp;
	char c;
	u32 nibble;
	u32 byte = 0;
	u32 pos = 0;
	u32 err;

	*wwn = 0;
	for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) {
		c = *cp;
		if (c == '\n' && cp[1] == '\0')
			continue;
		if (strict && pos++ == 2 && byte++ < 7) {
			pos = 0;
			if (c == ':')
				continue;
			err = 1;
			goto fail;
		}
		if (c == '\0') {
			err = 2;
			if (strict && byte != 8)
				goto fail;
			return cp - name;
		}
		err = 3;
		if (isdigit(c))
			nibble = c - '0';
		else if (isxdigit(c) && (islower(c) || !strict))
			nibble = tolower(c) - 'a' + 10;
		else
			goto fail;
		*wwn = (*wwn << 4) | nibble;
	}
	err = 4;
fail:
	pr_debug("err %u len %zu pos %u byte %u\n",
			err, cp - name, pos, byte);
	return -1;
}

static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn)
{
	u8 b[8];

	put_unaligned_be64(wwn, b);
	return snprintf(buf, len,
		"%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
		b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]);
}

static char *tcm_qla2xxx_get_fabric_name(void)
{
	return "qla2xxx";
}

/*
 * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn
 */
static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm)
{
	unsigned int i, j;
	u8 wwn[8];

	memset(wwn, 0, sizeof(wwn));

	/* Validate and store the new name */
	for (i = 0, j = 0; i < 16; i++) {
		int value;

		value = hex_to_bin(*ns++);
		if (value >= 0)
			j = (j << 4) | value;
		else
			return -EINVAL;

		if (i % 2) {
			wwn[i/2] = j & 0xff;
			j = 0;
		}
	}

	*nm = wwn_to_u64(wwn);
{'fraction_non_alphanumeric': 0.17711205815993983, 'fraction_numerical': 0.026949110052644772, 'mean_word_length': 3.9131773399014778, 'pattern_counts': {'":': 0, '<': 71, '<?xml version=': 0, '>': 59, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '1989130', 'n_tokens_mistral': 3368, 'n_tokens_neox': 3115, 'n_words': 877}