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The current patch provides a major refactory of the transportlibrary.
A summary of the different components that underwent major modifications is
reported below.
- Transport protocol updates
The hierarchy of classes has been optimized to have common transport services
across different transport protocols. This can allow to customize a transport
protocol with new features.
- A new real-time communication protocol
The RTC protocol has been optimized in terms of algorithms to reduce
consumer-producer synchronization latency.
- A novel socket API
The API has been reworked to be easier to consumer but also to have a more
efficient integration in L4 proxies.
- Several performance improvements
A large number of performance improvements have been included in
particular to make the entire stack zero-copy and optimize cache miss.
- New memory buffer framework
Memory management has been reworked entirely to provide a more efficient infra
with a richer API. Buffers are now allocated in blocks and a single buffer
holds the memory for (1) the shared_ptr control block, (2) the metadata of the
packet (e.g. name, pointer to other buffers if buffer is chained and relevant
offsets), and (3) the packet itself, as it is sent/received over the network.
- A new slab allocator
Dynamic memory allocation is now managed by a novel slab allocator that is
optimised for packet processing and connection management. Memory is organized
in pools of blocks all of the same size which are used during the processing of
outgoing/incoming packets. When a memory block Is allocated is always taken
from a global pool and when it is deallocated is returned to the pool, thus
avoiding the cost of any heap allocation in the data path.
- New transport connectors
Consumer and producer end-points can communication either using an hicn packet
forwarder or with direct connector based on shared memories or sockets.
The usage of transport connectors typically for unit and funcitonal
testing but may have additional usage.
- Support for FEC/ECC for transport services
FEC/ECC via reed solomon is supported by default and made available to
transport services as a modular component. Reed solomon block codes is a
default FEC model that can be replaced in a modular way by many other
codes including RLNC not avaiable in this distribution.
The current FEC framework support variable size padding and efficiently
makes use of the infra memory buffers to avoid additiona copies.
- Secure transport framework for signature computation and verification
Crypto support is nativelty used in hICN for integrity and authenticity.
Novel support that includes RTC has been implemented and made modular
and reusable acrosso different transport protocols.
- TLS - Transport layer security over hicn
Point to point confidentiality is provided by integrating TLS on top of
hICN reliable and non-reliable transport. The integration is common and
makes a different use of the TLS record.
- MLS - Messaging layer security over hicn
MLS integration on top of hICN is made by using the MLSPP implemetation
open sourced by Cisco. We have included instrumentation tools to deploy
performance and functional tests of groups of end-points.
- Android support
The overall code has been heavily tested in Android environments and
has received heavy lifting to better run natively in recent Android OS.
Co-authored-by: Mauro Sardara <msardara@cisco.com>
Co-authored-by: Michele Papalini <micpapal@cisco.com>
Co-authored-by: Olivier Roques <oroques+fdio@cisco.com>
Co-authored-by: Giulio Grassi <gigrassi@cisco.com>
Change-Id: If477ba2fa686e6f47bdf96307ac60938766aef69
Signed-off-by: Luca Muscariello <muscariello@ieee.org>
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As vpp has moved away from the dear old indent, also
the hicn plugin should do the same and use clang-format.
Signed-off-by: Mauro Sardara <msardara@cisco.com>
Change-Id: Iee896f3ce01cef53b1acfccbebeef66ca77add7d
Signed-off-by: Mauro Sardara <msardara@cisco.com>
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Signed-off-by: Mauro Sardara <msardara@cisco.com>
Change-Id: I3663ac73cdbaad3e53d4b1973a7bcbb333b3910c
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service
Signed-off-by: Mauro Sardara <msardara@cisco.com>
Change-Id: I1810d96e001a4e6e097e1efa331b682af750925d
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Signed-off-by: Mauro Sardara <msardara@cisco.com>
Change-Id: I8d8fdffef31a7013265d6529c5f52f3d5ec70d18
Signed-off-by: Mauro Sardara <msardara@cisco.com>
Signed-off-by: Mauro <you@example.com>
Signed-off-by: Mauro Sardara <msardara@cisco.com>
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Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com>
Change-Id: If2bf7f4f310adf6adbbb9ea29eafcb2a0ee40d54
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- Implemented a udp decapsulation node
- Added a hash table to identify the incoming udp tunnel when
an interest or data packets are received
- Added udp punting through udp_register_dst_port
Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com>
Change-Id: Iffea4d81c5ea8ce8ccbbfd749113f06a698a2afe
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Updates on the vrf 0 will be reflected on the hicn vrf thanks to the
fib entry tracking.
Change-Id: I4afd6256593f27172c4b0a613316fb8428fa8e50
Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com>
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given prefix
The changes include:
- we use now a different vrf for the hicn routes. The default vrf (fib) contains
every route, we sync the route we marked as hicn on the hicn vrf. In the vrf
we use a custom dpo to implement the forwarding strategy.
Change-Id: I399805eff8a62a5c41bf7b50831986a35bce4f76
Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com>
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Changes in the new implementation are:
- the adjacency index is replaced with a dpo that allows the single face node
to dispatch the packet to the right vlib node.
- local and remote address in the face are replaced with a single nat address
which is used to perform the nat operation when rewriting an interest or a
data (in case of tunnels the nat address will be equal to 0)
- the list of next hop in the load balance is no longer a list of dpos but
a list of face id (this makes the code easier and increases the number of
next hop we supports)
Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com>
Change-Id: I4ac2b4eb09425bfe1b3ca9f82d7d0ff564297b0d
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Luca Muscariello
Mauro
Mauro Sardara
Alberto Compagno