[PATCH 0/8] Rework KERN_<LEVEL>

On Wed, 2012-06-06 at 02:13 +0200, Kay Sievers wrote:

The question is what happens if you inject your new binary two-byte
prefix, like:
  echo -e "\x01\x02Hello" > /dev/kmsg

It's not a 2 byte binary.
It's a leading ascii SOH and a standard ascii char
'0' ... '7' or 'd'.

#define KERN_EMERG	KERN_SOH "0"	/* system is unusable */
#define KERN_ALERT	KERN_SOH "1"	/* action must be taken immediately */
etc...

And if that changes the log-level to "2" instead of the default "4"?

No it doesn't.

It's not triggering that because devkmsg_writev does
prefix parsing only on the old "<n>" form.