Here is a list of all documented files with brief descriptions:

[detail level 123]

BC
appbc.c	UDIF BC application entry point
GC
appgc.c	UDIF GC application entry point
Root
approot.c	UDIF ROOT application entry point
Saved
URA
appura.h
certificate.h	UDIF Certificate Handling Functions
commands.h	The UDIF command enumerations
crypto.h	UDIF Cryptographic Functions
encode.h	UDIF canonical TLV encoding
help.h	UDIF Help and Guidance Functions
kdf.h	UDIF key derivation functions
logger.h	UDIF Logging Functions
logging.h	UDIF audit logging operations
menu.h	The UDIF console menu functions
resources.h	The UDIF common resources
server.h	The common UDIF server functions
topology.h	The UDIF topology functions
transport.h	UDIF secure transport layer
udiftypes.h	UDIF core type definitions
ura.h
UA
appua.c	UDIF UA application entry point
UDIF
anchor.h	UDIF anchor record operations
bc.h	UDIF Branch Controller server public API
capability.h	UDIF capability token management
capstore.h	Runtime capability-token store
certificate.h	UDIF certificate operations
certstore.h	UDIF certificate status store
commands.h	UDIF console command enumerations
dispatch.h	UDIF application-layer dispatcher and per-message handler signatures
doxymain.h
entity.h	Runtime state for a UDIF entity process (Root, BC, GC, or UA)
event.h	Canonical UDIF audit-event records
gc.h	UDIF Group Controller server public API
handler.h	UDIF message handler aliases
help.h	UDIF console help functions
logger.h	UDIF activity log functions
mcelmanager.h
menu.h	UDIF console menu and prompt functions
message.h	UDIF application-layer message framing
object.h	UDIF object operations
policy.h	Central UDIF capability and certificate authorization checks
qstpkeys.h	Forward declarations for QSTP functions used by UDIF role modules
query.h	UDIF query operations
registry.h	UDIF object registry management
resources.h	UDIF static string resource tables
root.h	UDIF Root Authority server public API
server.h	UDIF server application state and shared support API
storage.h	UDIF file-based storage backend for MCEL integration
treaty.h	UDIF treaty operations
treatystore.h	Runtime treaty store
tunnel.h	UDIF tunnel abstraction over a QSTP secure channel
ua.h	UDIF User Agent server public API
udif.h	UDIF Common Definitions and Protocol Configuration
udifcommon.h	UDIF common definitions and constants
UDIF Test
anchor_test.h	UDIF Anchor tests
capability_test.h	UDIF Capabilities tests
certificate_test.h	UDIF Certificate tests
conformance_test.h	UDIF conformance and negative-validation tests
control_plane_test.h	UDIF control plane tests
handler_conformance_test.h	UDIF control plane tests
inter_domain_treaty_test.h	UDIF inter domain treaty tests
load_endurance_test.h	UDIF load endurance tests
mcel_hierarchy_test.h	UDIF mcel hierarchy tests
mcelmgr_test.h
object_registry_transaction_test.h	UDIF object, registry, and transaction integration tests
object_test.h	UDIF Object tests
query_mechanism_test.h
query_test.h	UDIF Query tests
registry_test.h	UDIF Registry tests
treaty_test.h	UDIF Treaty tests
tunnel_test.h	UDIF tunnel record tests
udif_test.h	UDIF test suite. Tests Capability objects, certificates, MCEL integration, Objects, Queries, Registry, and Treaties
udiftestcommon.h
virtual_network_test.h	UDIF virtual network tests