irmd: Initial Flow Allocation Protocol Header

This adds the initial version for the flow allocation protocol header
between IRMd instances. This is a step towards flow authentication.

The header supports secure and authenticated flow allocation,
supporting certificate-based authentication and ephemeral key
exchange for end-to-end encryption.

 id:          128-bit identifier for the entity.
 timestamp:   64-bit timestamp (replay protection).
 certificate: Certificate for authentication.
 public key:  ECDHE public key for key exchange.
 data:        Application data.
 signature:   Signature for integrity/authenticity.

Authentication and encryption require OpenSSL to be installed.

The IRMd compares the allocation request delay with the MPL of the
Layer over which the flow allocation was sent. MPL is now reported by
the Layer in ms instead of seconds.

Time functions revised for consistency and adds some tests.

The TPM can now print thread running times in Debug builds
(TPM_DEBUG_REPORT_INTERVAL) and abort processes with hung threads
(TPM_DEBUG_ABORT_TIMEOUT). Long running threads waiting for input
should call tpm_wait_work() to avoid trigger a process abort.

Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/irmd/config.h.in b/src/irmd/config.h.in
index fa1156b9..aa37b0ac 100644
--- a/src/irmd/config.h.in
+++ b/src/irmd/config.h.in
@@ -66,6 +66,7 @@
 
 #cmakedefine IRMD_KILL_ALL_PROCESSES
 #cmakedefine HAVE_LIBGCRYPT
+#cmakedefine HAVE_OPENSSL
 
 #define O7S_ASCII_ART                                                          \
 "\n"                                                                       \