From 297b60346df8beafee954a0fd7c2d64f33f3b9bc Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 01:44:05 +0000
Subject: [PATCH] rtl8211F_led_control

---
 kernel/drivers/target/target_core_fabric_lib.c |  123 +++++++++++++++++-----------------------
 1 files changed, 53 insertions(+), 70 deletions(-)

diff --git a/kernel/drivers/target/target_core_fabric_lib.c b/kernel/drivers/target/target_core_fabric_lib.c
index 939c621..6600ae4 100644
--- a/kernel/drivers/target/target_core_fabric_lib.c
+++ b/kernel/drivers/target/target_core_fabric_lib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*******************************************************************************
  * Filename:  target_core_fabric_lib.c
  *
@@ -7,20 +8,6 @@
  * (c) Copyright 2010-2013 Datera, Inc.
  *
  * Nicholas A. Bellinger <nab@linux-iscsi.org>
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  *
  ******************************************************************************/
 
@@ -145,33 +132,27 @@
 	unsigned char *buf)
 {
 	u32 off = 4, padding = 0;
+	int isid_len;
 	u16 len = 0;
 
 	spin_lock_irq(&se_nacl->nacl_sess_lock);
 	/*
-	 * From spc4r17 Section 7.5.4.6: TransportID for initiator
-	 * ports using SCSI over iSCSI.
+	 * Only null terminate the last field.
 	 *
-	 * The null-terminated, null-padded (see 4.4.2) ISCSI NAME field
-	 * shall contain the iSCSI name of an iSCSI initiator node (see
-	 * RFC 3720). The first ISCSI NAME field byte containing an ASCII
-	 * null character terminates the ISCSI NAME field without regard for
-	 * the specified length of the iSCSI TransportID or the contents of
-	 * the ADDITIONAL LENGTH field.
+	 * From spc4r37 section 7.6.4.6: TransportID for initiator ports using
+	 * SCSI over iSCSI.
+	 *
+	 * Table 507 TPID=0 Initiator device TransportID
+	 *
+	 * The null-terminated, null-padded (see 4.3.2) ISCSI NAME field shall
+	 * contain the iSCSI name of an iSCSI initiator node (see RFC 7143).
+	 * The first ISCSI NAME field byte containing an ASCII null character
+	 * terminates the ISCSI NAME field without regard for the specified
+	 * length of the iSCSI TransportID or the contents of the ADDITIONAL
+	 * LENGTH field.
 	 */
 	len = sprintf(&buf[off], "%s", se_nacl->initiatorname);
-	/*
-	 * Add Extra byte for NULL terminator
-	 */
-	len++;
-	/*
-	 * If there is ISID present with the registration and *format code == 1
-	 * 1, use iSCSI Initiator port TransportID format.
-	 *
-	 * Otherwise use iSCSI Initiator device TransportID format that
-	 * does not contain the ASCII encoded iSCSI Initiator iSID value
-	 * provied by the iSCSi Initiator during the iSCSI login process.
-	 */
+	off += len;
 	if ((*format_code == 1) && (pr_reg->isid_present_at_reg)) {
 		/*
 		 * Set FORMAT CODE 01b for iSCSI Initiator port TransportID
@@ -179,8 +160,12 @@
 		 */
 		buf[0] |= 0x40;
 		/*
-		 * From spc4r17 Section 7.5.4.6: TransportID for initiator
-		 * ports using SCSI over iSCSI.  Table 390
+		 * From spc4r37 Section 7.6.4.6
+		 *
+		 * Table 508 TPID=1 Initiator port TransportID.
+		 *
+		 * The ISCSI NAME field shall not be null-terminated
+		 * (see 4.3.2) and shall not be padded.
 		 *
 		 * The SEPARATOR field shall contain the five ASCII
 		 * characters ",i,0x".
@@ -190,23 +175,24 @@
 		 * (see RFC 3720) in the form of ASCII characters that are the
 		 * hexadecimal digits converted from the binary iSCSI initiator
 		 * session identifier value. The first ISCSI INITIATOR SESSION
-		 * ID field byte containing an ASCII null character
+		 * ID field byte containing an ASCII null character terminates
+		 * the ISCSI INITIATOR SESSION ID field without regard for the
+		 * specified length of the iSCSI TransportID or the contents
+		 * of the ADDITIONAL LENGTH field.
 		 */
-		buf[off+len] = 0x2c; off++; /* ASCII Character: "," */
-		buf[off+len] = 0x69; off++; /* ASCII Character: "i" */
-		buf[off+len] = 0x2c; off++; /* ASCII Character: "," */
-		buf[off+len] = 0x30; off++; /* ASCII Character: "0" */
-		buf[off+len] = 0x78; off++; /* ASCII Character: "x" */
+		buf[off++] = 0x2c; /* ASCII Character: "," */
+		buf[off++] = 0x69; /* ASCII Character: "i" */
+		buf[off++] = 0x2c; /* ASCII Character: "," */
+		buf[off++] = 0x30; /* ASCII Character: "0" */
+		buf[off++] = 0x78; /* ASCII Character: "x" */
 		len += 5;
-		buf[off+len] = pr_reg->pr_reg_isid[0]; off++;
-		buf[off+len] = pr_reg->pr_reg_isid[1]; off++;
-		buf[off+len] = pr_reg->pr_reg_isid[2]; off++;
-		buf[off+len] = pr_reg->pr_reg_isid[3]; off++;
-		buf[off+len] = pr_reg->pr_reg_isid[4]; off++;
-		buf[off+len] = pr_reg->pr_reg_isid[5]; off++;
-		buf[off+len] = '\0'; off++;
-		len += 7;
+
+		isid_len = sprintf(buf + off, "%s", pr_reg->pr_reg_isid);
+		off += isid_len;
+		len += isid_len;
 	}
+	buf[off] = '\0';
+	len += 1;
 	spin_unlock_irq(&se_nacl->nacl_sess_lock);
 	/*
 	 * The ADDITIONAL LENGTH field specifies the number of bytes that follow
@@ -249,7 +235,7 @@
 	 */
 	if (pr_reg->isid_present_at_reg) {
 		len += 5; /* For ",i,0x" ASCII separator */
-		len += 7; /* For iSCSI Initiator Session ID + Null terminator */
+		len += strlen(pr_reg->pr_reg_isid);
 		*format_code = 1;
 	} else
 		*format_code = 0;
@@ -278,9 +264,7 @@
 	char **port_nexus_ptr)
 {
 	char *p;
-	u32 tid_len, padding;
 	int i;
-	u16 add_len;
 	u8 format_code = (buf[0] & 0xc0);
 	/*
 	 * Check for FORMAT CODE 00b or 01b from spc4r17, section 7.5.4.6:
@@ -306,23 +290,11 @@
 	 */
 	if (out_tid_len) {
 		/* The shift works thanks to integer promotion rules */
-		add_len = get_unaligned_be16(&buf[2]);
-
-		tid_len = strlen(&buf[4]);
-		tid_len += 4; /* Add four bytes for iSCSI Transport ID header */
-		tid_len += 1; /* Add one byte for NULL terminator */
-		padding = ((-tid_len) & 3);
-		if (padding != 0)
-			tid_len += padding;
-
-		if ((add_len + 4) != tid_len) {
-			pr_debug("LIO-Target Extracted add_len: %hu "
-				"does not match calculated tid_len: %u,"
-				" using tid_len instead\n", add_len+4, tid_len);
-			*out_tid_len = tid_len;
-		} else
-			*out_tid_len = (add_len + 4);
+		*out_tid_len = get_unaligned_be16(&buf[2]);
+		/* Add four bytes for iSCSI Transport ID header */
+		*out_tid_len += 4;
 	}
+
 	/*
 	 * Check for ',i,0x' separator between iSCSI Name and iSCSI Initiator
 	 * Session ID as defined in Table 390 - iSCSI initiator port TransportID
@@ -347,6 +319,16 @@
 		 * iscsi_target.c:lio_sess_get_initiator_sid()
 		 */
 		for (i = 0; i < 12; i++) {
+			/*
+			 * The first ISCSI INITIATOR SESSION ID field byte
+			 * containing an ASCII null character terminates the
+			 * ISCSI INITIATOR SESSION ID field without regard for
+			 * the specified length of the iSCSI TransportID or the
+			 * contents of the ADDITIONAL LENGTH field.
+			 */
+			if (*p == '\0')
+				break;
+
 			if (isdigit(*p)) {
 				p++;
 				continue;
@@ -354,7 +336,8 @@
 			*p = tolower(*p);
 			p++;
 		}
-	}
+	} else
+		*port_nexus_ptr = NULL;
 
 	return &buf[4];
 }

--
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