capabilities plugin: new plugin to read static platform data

Read decoded SMBIOS data from dmidecode and expose it through httpd.
Using libmicrohttpd and libjansson.

Change-Id: I7bcbb8a0747fbaaa3d5e4affe78b828ca0d8837d
Signed-off-by: Kamil Wiatrowski <kamilx.wiatrowski@intel.com>

Makefile.am

@@ -757,6 +757,32 @@ buddyinfo_la_LDFLAGS = $(PLUGIN_LDFLAGS)
 buddyinfo_la_LIBADD = libignorelist.la
 endif
 
+if BUILD_PLUGIN_CAPABILITIES
+pkglib_LTLIBRARIES += capabilities.la
+capabilities_la_SOURCES = src/capabilities.c \
+                          src/utils/dmi/dmi.c \
+                          src/utils/dmi/dmi.h
+capabilities_la_CPPFLAGS = $(AM_CPPFLAGS) \
+	$(BUILD_WITH_LIBMICROHTTPD_CPPFLAGS) $(BUILD_WITH_LIBJANSSON_CPPFLAGS)
+capabilities_la_LDFLAGS = $(PLUGIN_LDFLAGS) \
+	$(BUILD_WITH_LIBMICROHTTPD_LDFLAGS) $(BUILD_WITH_LIBJANSSON_LDFLAGS)
+capabilities_la_LIBADD = $(BUILD_WITH_LIBMICROHTTPD_LIBS) \
+	$(BUILD_WITH_LIBJANSSON_LIBS)
+
+test_plugin_capabilities_SOURCES = \
+        src/capabilities_test.c \
+        src/daemon/configfile.c \
+        src/daemon/types_list.c
+test_plugin_capabilities_CPPFLAGS = $(AM_CPPFLAGS) \
+        $(BUILD_WITH_LIBJANSSON_CPPFLAGS)
+test_plugin_capabilities_LDFLAGS = $(PLUGIN_LDFLAGS) \
+        $(BUILD_WITH_LIBJANSSON_LDFLAGS)
+test_plugin_capabilities_LDADD = liboconfig.la libplugin_mock.la \
+        $(BUILD_WITH_LIBJANSSON_LIBS)
+check_PROGRAMS += test_plugin_capabilities
+TESTS += test_plugin_capabilities
+endif
+
 if BUILD_PLUGIN_CEPH
 pkglib_LTLIBRARIES += ceph.la
 ceph_la_SOURCES = src/ceph.c

README

@@ -48,6 +48,10 @@ Features
     - buddyinfo
       Statistics from buddyinfo file about memory fragmentation.
 
+    - capabilities
+      Platform static capabilities decoded from SMBIOS using dmidecode.
+      <https://www.nongnu.org/dmidecode/>
+
     - ceph
       Statistics from the Ceph distributed storage system.
 
@@ -843,7 +847,8 @@ Prerequisites
     <http://netfilter.org/>
 
   * libjansson (optional)
-    Used by the `dpdk_telemetry` plugin.
+    Parse JSON data. This is used for the `capabilities' and `dpdk_telemetry` plugins.
+    <http://www.digip.org/jansson/>
 
   * libjevents (optional)
     The jevents library is used by the `intel_pmu' plugin to access the Linux

configure.ac

@@ -6425,6 +6425,7 @@ plugin_barometer="no"
 plugin_battery="no"
 plugin_bind="no"
 plugin_buddyinfo="no"
+plugin_capabilities="no"
 plugin_ceph="no"
 plugin_cgroups="no"
 plugin_connectivity="no"
@@ -6559,6 +6560,10 @@ if test "x$ac_system" = "xLinux"; then
   if test "x$have_pci_regs_h" = "xyes"; then
     plugin_pcie_errors="yes"
   fi
+
+  if test "x$with_libmicrohttpd" = "xyes" && test "x$with_libjansson" = "xyes"; then
+    plugin_capabilities="yes"
+  fi
 fi
 
 if test "x$ac_system" = "xOpenBSD"; then
@@ -6868,6 +6873,7 @@ AC_PLUGIN([barometer],           [$plugin_barometer],         [Barometer sensor
 AC_PLUGIN([battery],             [$plugin_battery],           [Battery statistics])
 AC_PLUGIN([bind],                [$plugin_bind],              [ISC Bind nameserver statistics])
 AC_PLUGIN([buddyinfo],           [$plugin_buddyinfo],         [buddyinfo statistics])
+AC_PLUGIN([capabilities],        [$plugin_capabilities],      [Platform static capabilities])
 AC_PLUGIN([ceph],                [$plugin_ceph],              [Ceph daemon statistics])
 AC_PLUGIN([cgroups],             [$plugin_cgroups],           [CGroups CPU usage accounting])
 AC_PLUGIN([chrony],              [yes],                       [Chrony statistics])
@@ -7306,6 +7312,7 @@ AC_MSG_RESULT([    barometer . . . . . . $enable_barometer])
 AC_MSG_RESULT([    battery . . . . . . . $enable_battery])
 AC_MSG_RESULT([    bind  . . . . . . . . $enable_bind])
 AC_MSG_RESULT([    buddyinfo . . . . . . $enable_buddyinfo])
+AC_MSG_RESULT([    capabilities  . . . . $enable_capabilities])
 AC_MSG_RESULT([    ceph  . . . . . . . . $enable_ceph])
 AC_MSG_RESULT([    cgroups . . . . . . . $enable_cgroups])
 AC_MSG_RESULT([    chrony. . . . . . . . $enable_chrony])