linux-kernel - [PATCH blktrace v3 06/20] blktrace: support protocol version 8

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251015105658.527262-7-johannes.thumshirn@wdc.com>
Date: Wed, 15 Oct 2025 12:56:44 +0200
From: Johannes Thumshirn <johannes.thumshirn@....com>
To: axboe@...nel.dk
Cc: chaitanyak@...dia.com,
	dlemoal@...nel.org,
	hare@...e.de,
	hch@....de,
	john.g.garry@...cle.com,
	linux-block@...r.kernel.org,
	linux-btrace@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org,
	martin.petersen@...cle.com,
	mathieu.desnoyers@...icios.com,
	mhiramat@...nel.org,
	naohiro.aota@....com,
	rostedt@...dmis.org,
	shinichiro.kawasaki@....com,
	Johannes Thumshirn <johannes.thumshirn@....com>
Subject: [PATCH blktrace v3 06/20] blktrace: support protocol version 8

Also support protocol version 8 in conjunction with protocol version 7.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@....com>
---
 blktrace.h | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/blktrace.h b/blktrace.h
index 74dfb48..3305fa0 100644
--- a/blktrace.h
+++ b/blktrace.h
@@ -69,6 +69,7 @@ extern struct timespec abs_start_time;
 
 #define CHECK_MAGIC(t)		(((t)->magic & 0xffffff00) == BLK_IO_TRACE_MAGIC)
 #define SUPPORTED_VERSION	(0x07)
+#define SUPPORTED_VERSION2	(0x08)
 
 #if __BYTE_ORDER == __LITTLE_ENDIAN
 #define be16_to_cpu(x)		__bswap_16(x)
@@ -90,13 +91,17 @@ extern struct timespec abs_start_time;
 
 static inline int verify_trace(struct blk_io_trace *t)
 {
+	u8 version;
+
 	if (!CHECK_MAGIC(t)) {
 		fprintf(stderr, "bad trace magic %x\n", t->magic);
 		return 1;
 	}
-	if ((t->magic & 0xff) != SUPPORTED_VERSION) {
-		fprintf(stderr, "unsupported trace version %x\n", 
-			t->magic & 0xff);
+
+	version = t->magic & 0xff;
+	if (version != SUPPORTED_VERSION &&
+	    version != SUPPORTED_VERSION2) {
+		fprintf(stderr, "unsupported trace version %x\n", version);
 		return 1;
 	}
 
-- 
2.51.0