Add asn1c generated code for keytab controls

Instead of manually encoding controls, use an actual asn1 compiler.
The file asn1/asn1c/ipa.asn1 will contain ipa modules. The generated code
is committed to the tree and built into a static library that is linked
to the code that uses it.

The first module implements the GetKeytabControl control.

Related:
https://fedorahosted.org/freeipa/ticket/4718
https://fedorahosted.org/freeipa/ticket/4728

Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Nathaniel McCallum <npmccallum@redhat.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/asn1/README b/asn1/README
new file mode 100644
index 000000000..ec9752f56
--- /dev/null
+++ b/asn1/README
@@ -0,0 +1,17 @@
+libipaasn1.a is a small static convenience library used by other ipa
+binaries and modules. At the moment it is not meant to be a public shared
+library and stable interface, but may become one in future.
+
+The only files that should be manually modified are:
+* asn1c/ipa.asn1 - when new interfaces are added
+* ipa_asn1.[ch] - to add wrappers around interfaces
+
+ipa_asn1.[ch] are the public interface and they SHOULD NOT export generated
+structures so that the autogenerated code can change w/o impacting any other
+code except the internal library functions.
+
+To regenerate the automatically generated files run the following command:
+cd asn1c;
+make regenerate
+
+Remember to commit and add any new file to asn1c/Makefile.am