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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>
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The maximum packet lifetime (MPL) is a property of the flow that needs
to be passed to the reliable transmission protocol (FRCP) for its
correct operation. Previously, the value of MPL was set fixed as one
of the (fixed) Delta-t parameters. This patch makes the MPL a property
of the layer, and it can now be set per layer-type at build time.
This is a step towards a proper MPL estimator in the flow allocator.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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The UDP IPCP now uses a fixed server UDP port (default 3435) for all
communications. This allows passing firewalls more easily since only a
single port needs to be opened. The client port can be fixed as well
if needed (default random). It uses an internal eid, so the MTU of the
UDP layer is reduced by 4 bytes, similar to the Ethernet IPCPs.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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This changes the build to use GNUInstallDirs instead of hardcoded
values. Package maintainers can then override these defaults by
passing the correct value to cmake on the command line.
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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This changes the terminology to use layer instead of DIF and deprecate
the word "shim" for the IPCPs that attach to Ethernet LLC and UDP .The
terminology has not yet been changed in the variable names etc.
This reflects the design choices in Ouroboros to make IPCPs pure
resource allocators instead of also providing an "IPC service". The
Ouroboros IPCPs that attach to Ethernet and UDP implement the
allocator and are thus not really shims.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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