| Commit message (Collapse) | Author | Age | Files | Lines |
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This revises the application flow allocator to use the flow_info
struct/message between the components. Revises the messaging to move
the use protocol buffers to its own source (serdes-irm).
Adds a timeout to the IRMd flow allocator to make sure flow
allocations don't hang forever (this was previously taken care of by
the sanitize thread).
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This is a full revision of the IRMd internal implementation.
The registry is now a proper subcomponent managing its own internal
lock (a single mutex). Some tests are added for the registry and its
data structures. Some macros for tests are added in <ouroboros/test.h>.
Flow allocation is now more symmetric between the client side (alloc)
and server size (accept). Each will create a flow in pending state
(ALLOC_PENDING/ACCEPT_PENDING) that is potentially fulfilled by an
IPCP using respond_alloc and respond_accept primitives. Deallocation
is split in flow_dealloc (application side) and ipcp_flow_dealloc
(IPCP side) to get the flow in DEALLOC_PENDING and DEALLOCATED state.
Cleanup of failed flow allocation is now properly handled instead of
relying on the sanitizer thread. The new sanitizer only needs to
monitor crashed processes.
On shutdown, the IRMd will now detect hanging processes and SIGKILL
them and clean up their fuse mountpoints if needed.
A lot of other things have been cleaned up and shuffled around a bit.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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Some definitions/enums were different between the library and IRMd
(flow_state, ipcp_state). This moves them to common ground.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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Slow but steady.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The layer_info had a member layer_name which is a bit
redundant.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This revises the logging in the IPCPs to be a more consistent and
reduce duplicate messages in nested functions.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The state of the IPCP was set and checked in the main files, but it's
more convenient to do it in the common source.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The enrollment messages now have a 64-bit ID to easier track
enrollments in the logs in larger scale tests.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The refactors removed the need to set the hash algorithm for the
ipcpd-udp and the ipcpd-broadcast. However, the algorithm was not set
at bootstrap, so the ipcpd-udp was trying to use an SHA3-256 instead
of an MD5, causing flow allocation over the UDP to fail. The
ipcpd-broadcast used the default, so there was no problem.
Fixed by setting the correct algorithm for these ipcpds at bootstrap.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This adds initial support for configuration files using the C99 TOML
parser (to be installed separately from https://github.com/cktan/tomlc99).
The default location for the IRMd configuration file is
/etc/ouroboros/irmd.conf. This is configurable at build time.
An example file will be installed in the configuration directory with
the name irmd.conf.example.
Config file support can be disabled using the DISABLE_CONFIGFILE build
option.
There were some refactors and changes to the configuration messages
and protobuf files. This works towards consolidation of protobuf C as
an option for more generic handling of serialization/deserialization
of various messages.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The ipcp configuration struct now has internal structures for the
different IPCPs and for IPCP components of the unicast IPCP.
Split the very long IPCP main loop into individual handler functions.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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2022 was a rather slow year...
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The structure of main functions of the IPCPs was a bit strange with a
ipcp_shutdown() call that combined waiting for a terminating signal
with stopping the internal threads. This is now revised into a
symmetrical design of
ipcp_start(), which now includes the create response towards the IRMd.
ipcp_sigwait(), which waits for a shutdown signal
ipcp_stop() that then stops the internal threads.
Now the main() functions of the IPCPs will make sense without checking
what that ipcp_shutdown() functions actually does.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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Growing pains.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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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 <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This moves Resource Information Base (RIB) initialization into the
ipcp_init() function, so all IPCPs initialize a RIB. The RIB not shows
some common IPCP information, such as the IPCP name, IPCP state and
the layer name if the IPCP is part of a layer.
The initialization of the hash algorithm and layer name was moved out
of the common ipcp source because IPCPs may only know this information
after enrollment. Some IPCPs were not even storing this information.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The connection manager and enrolment components of the unicast and
broadcast IPCP have a lot in common, as conjectured in the paper. The
initial implementation of the broadcast IPCP just duplicated the
code. This moves the shared functionality to common ground.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The ugent email addresses are shut down, updated to Ouroboros mail
addresses.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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Happy New Year, Ouroboros!
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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GCC 10 defaults to -fno-common, so some variables that were defined in
the headers needed to be declared "extern". The GCC 10 static analyzer
can now be invoked using the DebugAnalyzer build option.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The initial implementation for the ECDHE key exchange was doing the
key exchange after a flow was established. The public keys are now
sent allowg on the flow allocation messages, so that an encrypted
tunnel can be created within 1 RTT. The flow allocation steps had to
be extended to pass the opaque data ('piggybacking').
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The API calls for the IPCP to inform the IRMd of IPCP creation and
incoming flow request had the pid_t in the call. This pid_t is removed
and the getpid() call is now placed inside the function. Also
refactors the cleanup for the main() functions of some of the lower
IPCPs.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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Updates the copyright notice in all sources to 2019.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This adds a new flow_join operaiton for broadcast, which is a much
safer solution than overloading destination name semantics. The
internal API now also has a different IPCP_FLOW_JOIN operation. The
IRMd doesn't need to query broadcasts IPCPs for the name, it can just
check if an IPCP with the layer name exists. The broadcast IPCP
doesn't need to implement the query proxy call anymore.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This adds a broadcast IPCP that allows us to easily create multicast
applications. The broadcast IPCP accepts flows for "<layer_name>.mc".
A tool, obc (Ouroboros broadcast), is added that sends and reads a
message to a broadcast layer.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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