[dpdk-dev] [PATCH 0/9] ipsec: new library for IPsec data-path processing
Konstantin Ananyev
konstantin.ananyev at intel.com
Fri Nov 16 00:53:42 CET 2018
This patch series targets 19.02 release.
This patch series depends on the patch:
http://patches.dpdk.org/patch/48044/
to be applied first.
RFCv2 -> v1
- Changes per Jerin comments
- Implement transport mode
- Several bug fixes
- UT largely reworked and extended
This patch introduces a new library within DPDK: librte_ipsec.
The aim is to provide DPDK native high performance library for IPsec
data-path processing.
The library is supposed to utilize existing DPDK crypto-dev and
security API to provide application with transparent IPsec processing API.
The library is concentrated on data-path protocols processing (ESP and AH),
IKE protocol(s) implementation is out of scope for that library.
Current patch introduces SA-level API.
SA (low) level API
==================
API described below operates on SA level.
It provides functionality that allows user for given SA to process
inbound and outbound IPsec packets.
To be more specific:
- for inbound ESP/AH packets perform decryption, authentication,
integrity checking, remove ESP/AH related headers
- for outbound packets perform payload encryption, attach ICV,
update/add IP headers, add ESP/AH headers/trailers,
setup related mbuf felids (ol_flags, tx_offloads, etc.).
- initialize/un-initialize given SA based on user provided parameters.
The following functionality:
- match inbound/outbound packets to particular SA
- manage crypto/security devices
- provide SAD/SPD related functionality
- determine what crypto/security device has to be used
for given packet(s)
is out of scope for SA-level API.
SA-level API is based on top of crypto-dev/security API and relies on them
to perform actual cipher and integrity checking.
To have an ability to easily map crypto/security sessions into related
IPSec SA opaque userdata field was added into
rte_cryptodev_sym_session and rte_security_session structures.
That implies ABI change for both librte_crytpodev and librte_security.
Due to the nature of crypto-dev API (enqueue/deque model) we use
asynchronous API for IPsec packets destined to be processed
by crypto-device.
Expected API call sequence would be:
/* enqueue for processing by crypto-device */
rte_ipsec_pkt_crypto_prepare(...);
rte_cryptodev_enqueue_burst(...);
/* dequeue from crypto-device and do final processing (if any) */
rte_cryptodev_dequeue_burst(...);
rte_ipsec_pkt_crypto_group(...); /* optional */
rte_ipsec_pkt_process(...);
Though for packets destined for inline processing no extra overhead
is required and synchronous API call: rte_ipsec_pkt_process()
is sufficient for that case.
Current implementation supports all four currently defined rte_security types.
Though to accommodate future custom implementations function pointers
model is used for both for *crypto_prepare* and *process* impelementations.
Implemented:
------------
- ESP tunnel mode support (both IPv4/IPv6)
- ESP transport mode support (both IPv4/IPv6)
- Supported algorithms: AES-CBC, AES-GCM, HMAC-SHA1, NULL
- Anti-Replay window and ESN support
- Unit Test
TODO list
---------
- update examples/ipsec-secgw to use librte_ipsec
(will be subject of a separate patch).
Konstantin Ananyev (9):
cryptodev: add opaque userdata pointer into crypto sym session
security: add opaque userdata pointer into security session
net: add ESP trailer structure definition
lib: introduce ipsec library
ipsec: add SA data-path API
ipsec: implement SA data-path API
ipsec: rework SA replay window/SQN for MT environment
ipsec: helper functions to group completed crypto-ops
test/ipsec: introduce functional test
config/common_base | 5 +
lib/Makefile | 2 +
lib/librte_cryptodev/rte_cryptodev.h | 2 +
lib/librte_ipsec/Makefile | 27 +
lib/librte_ipsec/crypto.h | 119 ++
lib/librte_ipsec/iph.h | 63 +
lib/librte_ipsec/ipsec_sqn.h | 343 ++++
lib/librte_ipsec/meson.build | 10 +
lib/librte_ipsec/pad.h | 45 +
lib/librte_ipsec/rte_ipsec.h | 156 ++
lib/librte_ipsec/rte_ipsec_group.h | 151 ++
lib/librte_ipsec/rte_ipsec_sa.h | 166 ++
lib/librte_ipsec/rte_ipsec_version.map | 15 +
lib/librte_ipsec/sa.c | 1387 +++++++++++++++
lib/librte_ipsec/sa.h | 98 ++
lib/librte_ipsec/ses.c | 45 +
lib/librte_net/rte_esp.h | 10 +-
lib/librte_security/rte_security.h | 2 +
lib/meson.build | 2 +
mk/rte.app.mk | 2 +
test/test/Makefile | 3 +
test/test/meson.build | 3 +
test/test/test_ipsec.c | 2209 ++++++++++++++++++++++++
23 files changed, 4864 insertions(+), 1 deletion(-)
create mode 100644 lib/librte_ipsec/Makefile
create mode 100644 lib/librte_ipsec/crypto.h
create mode 100644 lib/librte_ipsec/iph.h
create mode 100644 lib/librte_ipsec/ipsec_sqn.h
create mode 100644 lib/librte_ipsec/meson.build
create mode 100644 lib/librte_ipsec/pad.h
create mode 100644 lib/librte_ipsec/rte_ipsec.h
create mode 100644 lib/librte_ipsec/rte_ipsec_group.h
create mode 100644 lib/librte_ipsec/rte_ipsec_sa.h
create mode 100644 lib/librte_ipsec/rte_ipsec_version.map
create mode 100644 lib/librte_ipsec/sa.c
create mode 100644 lib/librte_ipsec/sa.h
create mode 100644 lib/librte_ipsec/ses.c
create mode 100644 test/test/test_ipsec.c
--
2.17.1
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