[Buildroot] [PATCH 3/3] package/mini-snmpd: enable optional .conf and ethtool support

[Joachim Wiberg <troglobit@gmail.com>]

Both libConfuse and ethtool support is relatively new features.  Enable
optional support for them, including an example /etc/mini-snmpd.conf

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
---
 package/mini-snmpd/Config.in       | 17 +++++++++++++-
 package/mini-snmpd/mini-snmpd.conf | 36 ++++++++++++++++++++++++++++++
 package/mini-snmpd/mini-snmpd.mk   | 19 ++++++++++++++++
 3 files changed, 71 insertions(+), 1 deletion(-)
 create mode 100644 package/mini-snmpd/mini-snmpd.conf

diff --git a/package/mini-snmpd/Config.in b/package/mini-snmpd/Config.in
index 1f61cddbcf..de83944528 100644
--- a/package/mini-snmpd/Config.in
+++ b/package/mini-snmpd/Config.in
@@ -4,4 +4,19 @@ config BR2_PACKAGE_MINI_SNMPD
 	  Mini SNMPd is a minimal implementation targeted at small or
 	  embedded UNIX systems with limited resources
 
-	  http://troglobit.com/mini-snmpd.html
+	  Enable BR2_PACKAGE_LIBCONFUSE for /etc/mini-snmpd.conf support
+	  with an example file.  Also enabling BR2_PACKAGE_ETHTOOL adds
+	  ethtool-based interface statistics.
+
+	  https://troglobit.com/mini-snmpd.html
+
+if BR2_PACKAGE_MINI_SNMPD
+
+config BR2_PACKAGE_MINI_SNMPD_INTERFACES
+	int "Number of network interfaces"
+	default 8
+	range 1 256
+	help
+	  Max number of network interfaces exposed in IF-MIB::ifTable
+
+endif
diff --git a/package/mini-snmpd/mini-snmpd.conf b/package/mini-snmpd/mini-snmpd.conf
new file mode 100644
index 0000000000..4679a8e43d
--- /dev/null
+++ b/package/mini-snmpd/mini-snmpd.conf
@@ -0,0 +1,36 @@
+# Require client authentication (SNMP v2c)
+authentication = true
+community      = "public"
+
+# Descriptive MIB-II system.* values, shown by snmpwalk
+#location      = "Server room, rack 4"
+#contact       = "ops@example.com"
+#description   = "Acme Gateway 3000"
+
+# Vendor OID tree (enterprises.*)
+#vendor        = ".1.3.6.1.4.1"
+
+# MIB poll timeout, seconds
+#timeout       = 1
+
+# Mount points to expose in UCD-SNMP-MIB::dskTable
+#disk-table    = { "/", "/var" }
+
+# Interfaces to expose in IF-MIB::ifTable
+#iface-table   = { "eth0", "eth1" }
+
+# SNMPv2 trap sinks
+#trap-table    = { "192.0.2.1", "[2001:db8::1]:1620" }
+
+# Emulate the respons of another device
+# custom ".1.3.6.1.4.1.11.2.3.9.1.1.7.0" {
+#    value = "MFG:Hewlett-Packard;MDL:HP LaserJet 1020;CLS:PRINTER;"
+#}
+
+# Map ethtool stats to IF-MIB counters:
+#ethtool "eth*" {
+#    rx_bytes   = ifInOctets
+#    rx_packets = ifInUcastPkts
+#    tx_bytes   = ifOutOctets
+#    tx_packets = ifOutUcastPkts
+#}
diff --git a/package/mini-snmpd/mini-snmpd.mk b/package/mini-snmpd/mini-snmpd.mk
index 99bef47477..9873ad2dee 100644
--- a/package/mini-snmpd/mini-snmpd.mk
+++ b/package/mini-snmpd/mini-snmpd.mk
@@ -11,6 +11,25 @@ MINI_SNMPD_LICENSE_FILES = COPYING
 MINI_SNMPD_CPE_ID_VENDOR = minisnmpd_project
 MINI_SNMPD_CPE_ID_PRODUCT = minisnmpd
 MINI_SNMPD_DEPENDENCIES = host-pkgconf
+MINI_SNMPD_CONF_OPTS = --with-interfaces=$(BR2_PACKAGE_MINI_SNMPD_INTERFACES)
+
+ifeq ($(BR2_PACKAGE_LIBCONFUSE),y)
+MINI_SNMPD_DEPENDENCIES += libconfuse
+MINI_SNMPD_CONF_OPTS += --with-config
+# ethtool interface stats live in linux_ethtool.c, only built with libConfuse
+ifeq ($(BR2_PACKAGE_ETHTOOL),y)
+MINI_SNMPD_CONF_OPTS += --enable-ethtool
+else
+MINI_SNMPD_CONF_OPTS += --disable-ethtool
+endif
+define MINI_SNMPD_INSTALL_CONFIG
+	$(INSTALL) -D -m 644 package/mini-snmpd/mini-snmpd.conf \
+		$(TARGET_DIR)/etc/mini-snmpd.conf
+endef
+MINI_SNMPD_POST_INSTALL_TARGET_HOOKS += MINI_SNMPD_INSTALL_CONFIG
+else
+MINI_SNMPD_CONF_OPTS += --without-config
+endif
 
 define MINI_SNMPD_INSTALL_ETC_DEFAULT
 	$(INSTALL) -D -m 644 package/mini-snmpd/mini-snmpd \
-- 
2.43.0

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