[v3,6/8] sysklogd: add logging configuration file

Message ID 20181007114605.18153-7-casantos@datacom.com.br
State New
Headers show
  • init scripts: rewrite S01logging
Related show

Commit Message

Carlos Santos Oct. 7, 2018, 11:46 a.m.
Provide a template to help users to customize syslogd and klogd without
editting the startup script. Also warn about options that must not be

syslogd options worth to configure are mark interval (-m), remote log
support (-r) and domain list (-s).

Give example of how to configure klogd re-initialization signal.

Signed-off-by: Carlos Santos <casantos@datacom.com.br>
Changes v1->v2:
- Document that the "-n" command line option must not be used.
- Going against the request from Arnout Vandecappelle, keep the klogd reload
  configuration. Add a comment explainig why it is still useful. BTW, I work
  on a project which requires dynamic installation of kernel modules.
Changes v2->v3
- Add reference to documentation, as suggested by Matt Weber.
 package/sysklogd/etc.default.logging | 33 ++++++++++++++++++++++++++++
 package/sysklogd/sysklogd.mk         |  2 ++
 2 files changed, 35 insertions(+)
 create mode 100644 package/sysklogd/etc.default.logging


diff --git a/package/sysklogd/etc.default.logging b/package/sysklogd/etc.default.logging
new file mode 100644
index 0000000000..a655e7ad42
--- /dev/null
+++ b/package/sysklogd/etc.default.logging
@@ -0,0 +1,33 @@ 
+# /etc/default/logging (sysklogd version)
+# Documentation is available in the klogd.8 and sysklogd.8 manual pages
+# distributed along with the source code.
+# Use SYSLOGD_ARGS to pass additional arguments to syslogd.
+# - Do NOT use "-n", "-v", since they will break the startup script.
+# - Do NOT use "-d", since debugging does not work when running in background.
+# SYSLOGD_ARGS="-m 0" # (default value)
+# Use KLOGD_ARGS to pass additional arguments to klogd.
+# - Do NOT use "-n", "-o" nor "-v", since they will break the startup script.
+# - Do NOT use "-d", since debugging does not work when running in background.
+# KLOGD_ARGS="-m 0" # (default value)
+# KLOGD_RELOAD selects the "S01logging reload" behavior.
+# - "USR1" will cause the kernel module symbols to be reloaded.
+# - "USR2" will cause both the static kernel symbols and the kernel module
+#   symbols to be reloaded.
+# - "0" will do nothing.
+# - Do not use any other value here. Use kill(1) for fine-grained control of
+#   klogd, as documented in its manual page.
+# Most users will never need to reload klogd in buildroot context because they
+# are not going to dynamically install kernel modules. In the rare cases that
+# this does happen, the user should be smart enough to send a SIGUSR1/2 but
+# let's keep this configurable for documentation purposes.
+# KLOGD_RELOAD="0" # (default value)
+# Uncomment the line below to disable this service
+# ENABLED="no"
diff --git a/package/sysklogd/sysklogd.mk b/package/sysklogd/sysklogd.mk
index c4f064c10b..b7e67ffee3 100644
--- a/package/sysklogd/sysklogd.mk
+++ b/package/sysklogd/sysklogd.mk
@@ -25,6 +25,8 @@  endef
 	$(INSTALL) -m 755 -D package/sysklogd/S01logging \
+	$(INSTALL) -m 0644 -D package/sysklogd/etc.default.logging \
+		$(TARGET_DIR)/etc/default/logging