tlshd: Set up new /etc/tlshd/tags.d directory

For "make install", create the directory that contains the files
where TLS session tags definitions reside. Introduce a YAML file
containing example TLS session tag definitions to help document this
new feature.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

Author: chucklever

src/tlshd/etc/Makefile.am

@@ -17,8 +17,10 @@
 #
 
 tlshdconfigdir		= $(sysconfdir)/tlshd
+tlshdtagsdir		= $(tlshdconfigdir)/tags.d
 
 tlshdconfig_DATA	= config
+tlshdtags_DATA		= tags.example
 
 man5_MANS		= tlshd.conf.man
 EXTRA_DIST		= $(man5_MANS)
@@ -27,3 +29,4 @@ MAINTAINERCLEANFILES	= Makefile.in
 
 install-exec-hook:
 	mkdir -p $(DESTDIR)$(tlshdconfigdir)
+	mkdir -p $(DESTDIR)$(tlshdtagsdir)

src/tlshd/etc/tags.example

@@ -0,0 +1,51 @@
+---
+filters:
+  monsters-university:
+    field: "issuer"
+    type: "wildcard"
+    expression: "*,O=Monsters University,*"
+  fear-tech:
+    field: "issuer"
+    type: "wildcard"
+    expression: "*,O=Fear Technology Institute,*"
+  school-scaring:
+    field: "subject"
+    type: "wildcard"
+    expression: "*,OU=School of Scaring,*"
+  school-can-design:
+    field: "subject"
+    type: "wildcard"
+    expression: "*,OU=School of Scream Can Design,*"
+  sorority-hss:
+    field: "subject"
+    type: "wildcard"
+    expression: "*,OU=Eta Hiss Hiss,*"
+  fraternity-ror:
+    field: "subject"
+    type: "wildcard"
+    expression: "*,OU=Roar Omega Roar,*"
+  fraternity-ok:
+    field: "subject"
+    type: "wildcard"
+    expression: "*,OU=Oozma Kappa,*"
+  valid-keyusage:
+    field: "keyUsage"
+    type: "list"
+    expression:
+      - "digitalSignature"
+      - "nonRepudiation"
+
+tags:
+  ror-mu-chapter:
+    filter:
+      - "monsters-univerity"
+      - "fraternity-ror"
+      - "valid-keyusage"
+  ror-ft-chapter:
+    filter:
+      - "fear-tech"
+      - "fraternity-ror"
+      - "valid-keyusage"
+  can-design-student-materials:
+    filter:
+      - "school-can-design"