docs: update TODO

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/TODO b/TODO
index a01a31a883af850fb5e9bb7aee88467f00df6c58..c903ab067b16fd2c69f9c1f65ebb29017d518afe 100644 (file)
--- a/TODO
+++ b/TODO
@@ -2,11 +2,25 @@
 dmesg
 -----
 
-  - add new command line option --facility= or --loglevel= to print select
-    loglevel only. For example
-
-               $ dmesg --logleve=6
-               $ dmesg --loglevel=INFO
+  - add new command line option --facility= and --level= to print select
+    messages only. For example
+
+               $ dmesg --level=ERR --facility=DAEMON
+
+   IRC log:
+
+       <mezcalero> kzak: the point of --facility= is so that we can distuingish between kernel msgs and userspace msgs written to /dev/kmsg
+       <mezcalero> the latter would set facility=1 (i.e. LOG_USER) or facility=3 (i.e. LOG_DAEMON)
+       <mezcalero> kzak: right now, everything written to kmsg just uses on-char PRIO fields
+       <mezcalero> kzak: i.e. <0> to <7>
+       <mezcalero> kzak: that means facility for all of these is 0
+       <mezcalero> since facility according to the syslog spec is stored in the the bits of the value between "<" and ">" shifted right be 3
+       <mezcalero> and since that is zero for all msgs in kmsg this is identical to LOG_KERN, i.e. 0 << 3
+       <mezcalero> now, the idea is that we fix systemd, dracut and udev to use LOG_DAEMON or LOG_USER instead
+       <mezcalero> instead of using <4> as prefix they'd use <12> or so
+       <mezcalero> where 12 is 4 + 8
+       <mezcalero> where 8 is 1 << 3
+       <mezcalero> and 1 is LOG_USER
 
 mount
 -----