Bring over illumos ZFS FMA logic -- phase 1

This first phase brings over the ZFS SLM module, zfs_mod.c, to handle
auto operations in response to disk events. Disk event monitoring is
provided from libudev and generates the expected payload schema for
zfs_mod. This work leverages the recently added devid and phys_path
strings in the vdev label.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@intel.com>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #4673

cmd/zed/Makefile.am

@@ -8,11 +8,13 @@ EXTRA_DIST = zed.d/README
 
 sbin_PROGRAMS = zed
 
-zed_SOURCES = \
+ZED_SRC = \
 	zed.c \
 	zed.h \
 	zed_conf.c \
 	zed_conf.h \
+	zed_disk_event.c \
+	zed_disk_event.h \
 	zed_event.c \
 	zed_event.h \
 	zed_exec.c \
@@ -24,6 +26,14 @@ zed_SOURCES = \
 	zed_strings.c \
 	zed_strings.h
 
+FMA_SRC = \
+	agents/zfs_agents.h \
+	agents/zfs_diagnosis.c \
+	agents/zfs_mod.c \
+	agents/zfs_retire.c
+
+zed_SOURCES = $(ZED_SRC) $(FMA_SRC)
+
 zed_LDADD = \
 	$(top_builddir)/lib/libavl/libavl.la \
 	$(top_builddir)/lib/libnvpair/libnvpair.la \