| Commit message (Collapse) | Author | Age | Files | Lines |
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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 will reduce the linux high resolution slack timer in IPCPs. Linux
default for userspace processes is 50us. It is configurable at build
using IPCP_LINUX_SLACKTIMER_NS. Default is now 1us.
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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Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This restricts the MTU for the Ethernet IPCP over loopback adapters
(devices named "lo*") to avoid it allocating 65K buffers per packet
and quickly filling the default RDRBUFF space. The restriction is set
using the build option IPCP_ETH_LO_MTU, with a default value of 1500
bytes.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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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 <[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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The signals are now handled in the main thread instead of an
asynchronous signal handler. The acceptloop is now correctly cancelled
and the associated timeouts are removed.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This allows configuration of the DHT slack timer at build time.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This will make bypassing the qdisc configurable, as it might be handy
for getting fast data rates but is generally needed.
Signed-off-by: Sander Vrijders <[email protected]>
Signed-off-by: Dimitri Staessens <[email protected]>
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There were QoS cubes defined for raw and data flows, which are now run
on the best effort cube.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This adds multiple reader and writer threads, configurabe via cmake
with IPCP_ETH_RD_THR and IPCP_ETH_WR_THR. Improves ethernet IPCP
throughput, which looks to be limited by the raw socket calls.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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When the SHM is in single block mode, the MTU may be bigger than a
block. The eth IPCPs reserved buffers the size of MTU, which is now
limited.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This adds a data qos cube that is reliable. Reliable qos can be
selected by setting the loss parameter of the qosspec to 0.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The raw flows had no priority assigned, causing the scheduler to fail
on creation.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This adds the option to wait for the directory (DHT) to enroll on
creating a new data transfer connection. This makes scripting network
bootstraps more stable. The default setting is OFF.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This adds a function that locks a thread to a random core. This
greatly improves performance on multi-cpu systems. There is no
portable way to do this, this only implements it for GNU/Linux.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This adds flow statistics for the data transfer (DT) component to the
RIB. The DT component will keep track of the traffic on each
flow. This feature can be enabled or disabled by setting the
IPCP_FLOW_STATS variable in the build system.
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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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 <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This refactors ouroboros to use "program" instead of "application
process" and "process" instead of "application process instance" to
align with current naming in current Operating Systems courses instead
of the ISO nomenclature adopted by RINA. This change permeates through
the entire implementation. Also contains some minor other refactors.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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The HAVE_LIBGCRYPT variable was not defined for IPCPs, causing them to
call the gcrypt functions with the wrong values for the enum.
Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>
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This revises the sdu_scheduler of the normal IPCP to create a
scheduler thread per QoS cube and let the kernel scheduler schedule
them based on a priority. Priorities can be set at build time in a
range of 0-100, which will be mapped onto a suitable priority for the
kernel scheduler. The current scheduler policy is fixed to SCHED_RR
since it is the most suitable scheduler defined by POSIX.
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This fixes output when detecting DDNS tools and homogenizes output and
the APIs used to pass variables between the build system and the
sources. Fixes some minor issues and typos).
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This revises the build system to have configuration per system
component. System settings can now be set using cmake.
The standard compliance defines were removed from configuration header
and are set in the sources where needed. Also some small code
refactors, such as moving the data for shims out of the ipcp structure
to the respective shims were performed.
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