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2020-04-27virtio: support virtio 1.1 packed ring in vhostSteven Luong8-156/+1604
virtio 1.1 defines a number of new features. Packed ring is among the most notable and important one. It combines used, available, and descripptor rings into one. This patch provides experimental support for packed ring. To avoid regression, when packed ring is configured for the interface, it is branched to a separate RX and TX driver. Non packed ring should continue to perform as it was before. Packed ring is tested using qemu4.2 and ubuntu focal fossa (kernel 5.4.0-12) on the guess VM which supports packed ring. To configure VPP with packed ring, just add the optional keyword "packed" when creating the vhost interface. To bring up the guest VM with packed ring, add "packed=on" in the qemu launch command. To facilitate troubleshooting, also added "verbose" option in show vhost desc CLI to include displaying the indirect descriptors. Known qemu reconnect issue - If VPP is restarted, guest VMs also need to be restarted. The problem is kernel virtio-net-pci keeps track of the previous available and used indices. For virtio 1.0, these indices are in shared memory and qemu can easily copy them to pass to the backend for reconnect. For virio 1.1, these indices are no longer in shared memory. Qemu needs a new mechanism to retrieve them and it is not currently implemented. So when the protocol reconnects, qemu does not have the correct available and used indices to pass to the backend. As a result, after the reconnect, virtio-net-pci is reading the TX ring from the wrong position in the ring, not the same position which the backend is writing. Similar problem exists also in the RX. Type: feature Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: I5afc50b0bafab5a1de7a6dd10f399db3fafd144c
2020-04-27l2: merge two clib_memcpy_fast into oneZhiyong Yang1-11/+16
Merge two memcpy into one by swapping src and dst address in l2fwd_trace_t. Type: improvement Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com> Change-Id: I71c5ecad0b453a434b1cb292ef03d88a760255c8
2020-04-27ip: reassembly: fix one possible use-after-freeGao Feng2-10/+11
When use the kv->v.memory_owner_thread_index as the index to get the reass in pool, maybe this element is freed by the owner thread because of timeout, too many fragments, and so on. So we should check if do_handoff with kv->v.memory_owner_thread_index before get the reass from pool. Type: fix Signed-off-by: Gao Feng <davidfgao@tencent.com> Change-Id: Ie0f1dc368f86d0fd65292ca0c5e1908348015e09
2020-04-27devices: allow link state down with netlinkMatthew Smith1-1/+1
Type: fix Use the up parameter in vnet_netlink_set_link_state(). It was ignoring the parameter and always setting IFF_UP on an interface. Change-Id: I0d44406d982afbdc43bc6b26d0f22c0bdd47abdc Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2020-04-25tls: improve cli state reportingFlorin Coras1-3/+12
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I02d60134d6069764da75dc6d206b376a0d46998e
2020-04-25session vcl: propagate transport cleanup notificationsFlorin Coras4-6/+15
Type: improvement Can be used to force app to close a connection on which it still waits for data. Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I7c3a8245cbbc23728e4408feb63a659a11f718ed
2020-04-24nat: make usage of vnet_buffer2 transparentKlement Sekera1-0/+6
Type: fix Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I50df248afb3f6b46c49e6695b3f124cfd584f016
2020-04-24ip: reassembly: improve type safetyKlement Sekera4-30/+24
Type: refactor Change-Id: Ib2d4a11ffa0e1e56ca05705ba8cdf84e6cc66427 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2020-04-24ip: Setting the Link-Local address from the API enables IPv6 on theNeale Ranns5-15/+20
interface Type: fix Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I0b7c189006e30a357cd6be4f3c9c61fded4157cb
2020-04-24virtio: vhost checksum problem for ipv6Steven Luong1-3/+3
When checksum is enable for IPv6, it erroneously set the flag VNET_BUFFER_F_OFFLOAD_IP_CKSUM. That flag is meant for ip4 packets only. Type: fix Ticket: VPP-1857 Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: Id03b2937bfa34e2a9b50a36aafe0700bad7fb95e (cherry picked from commit f78294d8468f156e066e7e69aab3a1b285810c3a)
2020-04-24ipsec: add input node bypass/discard functionalityShivaShankarK3-164/+263
add bypass/discard functionality to ipsec4-input-feature node Type: feature Signed-off-by: ShivaShankarK <shivaashankar1204@gmail.com> Change-Id: I152a5dfee0296109cccabe349a330dbbe395cc6c
2020-04-23session: fix session_table_get_or_allocAndreas Schultz1-8/+11
Extending the fib_index_to_table_index could leave entries uninitialized, pointing to the session tables at index 0. That session index exists by default, but it is a IPv4 session table. That would break all IPv6 on the unitilized fib indexes. Type: fix Change-Id: Ie3f0a87a7f829ceb39f75ec06658b0ad1d3813ae Signed-off-by: Andreas Schultz <andreas.schultz@travelping.com>
2020-04-23ip: Replace Sematics for Interface IP addressesNeale Ranns13-295/+626
Type: feature - replace functions for prefixes attached to interfaces - add ip_interface.[ch] to consoldate the functions Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I9c0c39c09dbf80ea1aadefee02c9bd16f094b6ad
2020-04-23ip-neighbor: Replace feature for the ip-neighbor data-baseNeale Ranns6-15/+145
Type: feature DB replace is implemented with a mark and sweep algorithm (just the the FIB) Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I54ab06e11552219e2a18e1b4a87d531321cf3829
2020-04-22tcp: avoid bt sample access after possible pool reallocFlorin Coras1-6/+6
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I98f943c8862fa74fb576f9ec1fb9186289b1216b
2020-04-22ip: fix format functions for u8 address_familyNeale Ranns1-1/+1
Type: fix Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I8c9f5330879fb8f51792b4476d5f0c873dbe4d7a
2020-04-22lisp: switch to new timer wheel codeFlorin Coras3-15/+11
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ie212a43c435cfa7f8fac65d1620258913611c527
2020-04-22tcp: fix use-after-freeBenoît Ganne1-1/+5
bts can be freed by the call to bt_fix_overlapped(). Save flags for later use. Type: fix Change-Id: If8b48c96ce39e38f2ed7f4db2815122523eb2e05 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-04-22session: multiple dgrams per dispatchFlorin Coras1-7/+50
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ifa4916ffeaa30039e366011109bbd2e9c91a1b0b
2020-04-22gre: Optimise encap node for tunnel typesNeale Ranns3-9/+45
Type: improvement Change-Id: I6627e22110be94c8127486ae009761494e734c04 Signed-off-by: Neale Ranns <nranns@cisco.com>
2020-04-22gso: add vxlan tunnel supportMohsin Kazmi9-167/+682
Type: feature Change-Id: I85f6ec77187a4983c66c5e22fd39fbb2cef82902 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-04-22ethernet: leverage vlib_buffer_get_currentZhiyong Yang1-4/+4
Type: improvement Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com> Change-Id: I0eaedeee03dd3b4453edec7fca2a5c741a98de23
2020-04-22ethernet: put vlib_get_buffers togetherZhiyong Yang1-11/+6
The patch brings 0.8 clocks saved per pkt in IPv4 l3fwd case on Skylake. Type: improvement Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com> Change-Id: Ia8d3a27773bf959433380d7c219602b1e4a8e5bd
2020-04-21vppinfra: bihash improvementsDave Barach1-6/+7
Template instances can allocate BIHASH_KVP_PER_PAGE data records tangent to the bucket, to remove a dependent read / prefetch. Template instances can ask for immediate memory allocation, to avoid several branches in the lookup path. Clean up l2 fib, gpb plugin codes: use clib_bihash_get_bucket(...) Use hugepages for bihash allocation arenas Type: improvement Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Damjan Marion <damarion@cisco.com> Change-Id: I92fc11bc58e48d84e2d61f44580916dd1c56361c
2020-04-20sr: fix non-NULL terminated string overflowBenoît Ganne1-1/+1
Type: fix Change-Id: Ia5ae0e893a5358f61353d20f444d88d79953e482 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-04-20session: fix use-after-free in input nodeBenoît Ganne1-1/+2
Type: fix Change-Id: Ie60b07abe76ad166f048f5885accd7038d8153b2 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-04-20session: avoid rx notifications on accepting sessionsFlorin Coras1-0/+5
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Iba37e528e968104c3ba9c8324438ba695ddddfd1
2020-04-19session: fix half-open cleanupFlorin Coras1-3/+3
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I931d23cf617c8f24fe9a02982ab129785bbd184d
2020-04-17lisp: fix use-after-freeBenoît Ganne1-8/+8
Type: fix Change-Id: I42c3e3514ba50d40e09ee688d083f3e78fa0713a Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-04-17tcp: cubic as default cc algorithmFlorin Coras1-1/+1
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I48ce827966667a767440149769eb1b24616ce4c1
2020-04-17virtio: fix to use chained descriptors when missing indirect descriptorMohsin Kazmi2-7/+79
Some vhost-backed missing the VIRTIO_RING_F_INDIRECT_DESC feature. Previously, vpp doesn't support jumbo frames using chained descriptors. This patch fixes this issue. Type: fix Change-Id: I20487e201e88ea136b556ac84dde058019ab3e78 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-04-17session tcp: track half open in app wrkFlorin Coras10-20/+164
Type: improvement Do extra checks when establishing an active connect and cleanup pending connects if application detaches. Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ibe9349db57b313ba2aa5ea3960ef5cf755f5098a
2020-04-17tap: add initial support for tunMohsin Kazmi9-47/+190
Type: feature Change-Id: I699a01ac925fe5c475a36032edb7018618bb4dd4 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-04-16fib: fix use-after-freeBenoît Ganne1-10/+11
Type: fix Change-Id: Ie7081d977dd0d3e7d09bc0d1b4d53863288e443b Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-04-16ipsec: fix use-after-freeBenoît Ganne1-1/+1
Type: fix Change-Id: I1068ff1d03883addb5fe1005a8b608eab17e4168 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-04-16bier: fix vector size confusing ASanBenoît Ganne1-1/+2
The vector is initialized to 1024 entries which is guaranteed to be enough, but as its size can shrink between calls, make sure ASan is aware of the expected size before using it. Type: fix Change-Id: I4bcc39867a886b3cb463854d2cda0b32155650e9 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-04-16udp: fix buffer traceAndreas Schultz1-3/+2
Type: fix Signed-off-by: Andreas Schultz <andreas.schultz@travelping.com> Change-Id: I774ca50582281cb3cc5e43417e74d178bf4909bd
2020-04-15pg: set vnet buffer flags in pg streamsDave Barach5-1/+40
See .../extras/pg/checksum_offload.pg for a nontrivial example, which deliberately sets bogus ip and udp checksums in the generated packets, then fixes the mess with (software emulated) hardware checksum offload. Validated via "pcap dispatch trace on max 1000 buffer-trace pg-input 100". Packets stuffed into loop1-output have the configured bogus ip and udp checksums. vnet_calc_checksums_inline(...) fixes the checksums, which are correct when packets visit loop1-tx. The packet generator is a dumb robot in this regard. If you ask for a ridiculous flag combination - example: ip4 and ip6 - your mileage may vary. Type: feature Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I6d9e790f373bcd9e445a89113ca8e4c8f9aa9419
2020-04-15session: detach session from app on cleanupFlorin Coras1-1/+6
Type: fix Avoids unwanted notifications. Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ifff27fb0d3644194e3bb3f91d7ed1fd02c6730cd
2020-04-15urpf: Allow locally generated packets on TXNeale Ranns1-4/+0
Type: fix Change-Id: I87d301aec20b9f5b34997b394493c796188fce14 Signed-off-by: Neale Ranns <nranns@cisco.com>
2020-04-15tcp: allow local port sharing if 5-tuple availableFlorin Coras1-1/+14
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Id0c4b46247e7419a328387678a4753cfb1e42d75
2020-04-15misc: refactor calc_checksumsDave Barach5-81/+64
Merge two mildly incompatible static inlines, and rename the results vnet_calc_checksums_inline (...). The resulting inline has three additional parameters: int is_ip4, int is_ip6, and int with_gso. All calls manage to pass one or more as compile-time constants, which causes a certain amount of code to disappear in each instantiation. Type: refactor Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I1a2a0e353b9a7bca20bc81318e8c915617261e1a
2020-04-14session: avoid all session cleanup on unlistenFlorin Coras1-9/+7
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ifff49366ad538bf2dd64487cae17e7457dff064f
2020-04-14urpf: Unicast reverse Path Forwarding (plugin)Neale Ranns10-616/+118
Type: feature - move the IP4 code to plugin - add ip6 support - add suport for uRPF on TX - add tests Change-Id: I074c2debc486d3e79c12fad4b8dbd72c41e841a0 Signed-off-by: Neale Ranns <nranns@cisco.com>
2020-04-14ipsec: validate number of input sasMatthew Smith2-1/+9
Type: fix There is a statically allocated array for inbound SAs which can hold 4 IDs. The input parameter containing the IDs of th inbound SAs is a vector and Its possible to pass a vector with more than 4 elements and write the memory past the end of the array. Fail if more than 4 SAs are passed in the vector. Change-Id: I0c9d321c902d6366b8aff816d04e343dcbd110eb Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2020-04-13session: remove ho with fifos supportFlorin Coras4-29/+5
Type: refactor UDPC (removed) was the only consumer. Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I2812bf58d3c68fe021ec73acaa1bd00ef3172846
2020-04-13session: cleanup debug codeFlorin Coras6-319/+363
Type: refactor Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ie6c03195019fe18c547b22f4387d7f2b14b71461
2020-04-13session: adding debug eventsSrikanth Akula4-0/+231
Type: feature Enhancing the debugging capability of tcp session layer by measing time spent for various events. This is meant only for debugging purpose Signed-off-by: Srikanth Akula <srakula@cisco.com> Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I9f401881b345bcae5f7d8050338637fd47b3723b Signed-off-by: Srikanth Akula <srakula@cisco.com>
2020-04-11fib: fix accessing empty dpo pool elementsShivaShankarK2-2/+8
Type: fix Signed-off-by: ShivaShankarK <shivaashankar1204@gmail.com> Change-Id: Iee88a2101ce42d7f1cdb65df532c349d14829e4c
2020-04-10udp: remove connected udp transport protoFlorin Coras4-67/+1
Type: refactor To reproduce functionality, use udp in combination with TRANSPORT_CFG_F_CONNECTED transport flag set in connect and listen parameters. Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Id88470c38326f8168b9646b0de49a674e0f4266f