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2020-05-04fib: midchain adjacency optimisationsNeale Ranns1-11/+27
Type: improvement - inline some common encap fixup functions into the midchain rewrite node so we don't incur the cost of the virtual function call - change the copy 'guess' from ethernet_header (which will never happen) to an ip4 header - add adj-midchain-tx to multiarch sources - don't run adj-midchain-tx as a feature, instead put this node as the adj's next and at the end of the feature arc. - cache the feature arc config index (to save the cache miss going to fetch it) - don't check if features are enabled when taking the arc (since we know they are) the last two changes will also benefit normal adjacencies taking the arc (i.e. for NAT, ACLs, etc) for IPSec: - don't run esp_encrypt as a feature, instead when required insert this node into the adj's next and into the end of the feature arc. this implies that encrypt is always 'the last feature' run, which is symmetric with decrypt always being the first. - esp_encrpyt for tunnels has adj-midchain-tx as next node Change-Id: Ida0af56a704302cf2d7797ded5f118a781e8acb7 Signed-off-by: Neale Ranns <nranns@cisco.com>
2020-02-04teib: Rename NHRP to TEIBNeale Ranns1-30/+30
Type: refactor The Tunnel Endpoint Informatiob Base (TEIB) is a better description of what it is (a mapping between tunnel endpoint address, in the overlay, and next-hop address, in the underlay) whereas NHRP is one instanc eof a control protocol that might add such endpoints. Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Idcb2ad0b6543d3e5d9f6e96f9d14dafb5ce2aa85
2020-01-30gre: Tunnel encap/decap flagsNeale Ranns1-65/+88
Type: feature common funcitons across IP-in-IP and GRE tunnels for encap/decap functions Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I325b66824878d843af167adfe5a7a96b0ab90566
2020-01-27ipip: Multi-point interfaceNeale Ranns1-43/+279
Type: feature plus fixes for gre Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I0eca5f94b8b8ea0fcfb058162cafea4491708db6
2020-01-27tunnel: Common types for IP tunnelsNeale Ranns1-27/+13
Type: refactor Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I18dcdb7af3e327f6cacdbcb1e52b89f13d6ba6e2
2019-12-12ikev2: fix crash during SA rekeyFilip Tehlar1-1/+5
Type: fix Change-Id: Ib00ab9b2f28c0f4d85e96bf95697f61b8e415f37 Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
2019-12-03fib: constify the adjacency in the rewrite nodesNeale Ranns1-2/+2
Type: refactor Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I3aad20b35d89fc541fdf185096d71ca12b09a6e2
2019-12-03ipip: Tunnel flags controlling copying data to/from payload/encapNeale Ranns1-19/+50
Type: feature Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I9467f11775936754406892b8e9e275f989ac9b30
2019-06-18ipsec: ipsec-tun protectNeale Ranns1-0/+18
please consult the new tunnel proposal at: https://wiki.fd.io/view/VPP/IPSec Type: feature Change-Id: I52857fc92ae068b85f59be08bdbea1bd5932e291 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-03-26ADJ: midchain delegate to performing stackingNeale Ranns1-91/+13
this can be used by e.g. tunnels so it doesn't need to be implemented for each tunnel type. Change-Id: I0790f89aa49f83421612b35108cce67693285999 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-12-07FIB recusrion loop checks traverse midchain adjacenciesNeale Ranns1-48/+17
if a tunnel's destination address is reachable through the tunnel (see example config belwo) then search for and detect a recursion loop and don't stack the adjacency. Otherwise this results in a nasty surprise. DBGvpp# loop cre DBGvpp# set int state loop0 up DBGvpp# set int ip addr loop0 10.0.0.1/24 DBGvpp# create gre tunnel src 10.0.0.1 dst 1.1.1.1 DBGvpp# set int state gre0 up DBGvpp# set int unnum gre0 use loop0 DBGvpp# ip route 1.1.1.1/32 via gre0 DBGvpp# sh ip fib 1.1.1.1 ipv4-VRF:0, fib_index:0, flow hash:[src dst sport dport proto ] locks:[src:plugin-hi:2, src:default-route:1, ] 1.1.1.1/32 fib:0 index:11 locks:4 <<< this is entry #11 src:CLI refs:1 entry-flags:attached, src-flags:added,contributing,active, path-list:[14] locks:2 flags:shared,looped, uPRF-list:12 len:1 itfs:[2, ] path:[14] pl-index:14 ip4 weight=1 pref=0 attached-nexthop: oper-flags:recursive-loop,resolved, cfg-flags:attached, 1.1.1.1 gre0 (p2p) [@0]: ipv4 via 0.0.0.0 gre0: mtu:9000 4500000000000000fe2fb0cc0a0000010101010100000800 stacked-on entry:11: <<<< and the midchain forwards via entry #11 [@2]: dpo-drop ip4 src:recursive-resolution refs:1 src-flags:added, cover:-1 forwarding: unicast-ip4-chain [@0]: dpo-load-balance: [proto:ip4 index:13 buckets:1 uRPF:12 to:[0:0]] [0] [@6]: ipv4 via 0.0.0.0 gre0: mtu:9000 4500000000000000fe2fb0cc0a0000010101010100000800 stacked-on entry:11: [@2]: dpo-drop ip4 DBGvpp# sh adj 1 [@1] ipv4 via 0.0.0.0 gre0: mtu:9000 4500000000000000fe2fb0cc0a0000010101010100000800 stacked-on entry:11: [@2]: dpo-drop ip4 flags:midchain-ip-stack midchain-looped <<<<< this is a loop counts:[0:0] locks:4 delegates: children: {path:14} Change-Id: I39b82bd1ea439be4611c88b130d40289fa0c1b59 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-10-23c11 safe string handling supportDave Barach1-2/+2
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-09-27IPIP and IPv6 fragmentationOle Troan1-0/+4
- Error where ICMPv6 error code doesn't reset VLIB_TX = -1 Leading to crash for ICMP generated on tunnelled packets - Missed setting VNET_BUFFER_F_LOCALLY_ORIGINATED, so IP in IPv6 packets never got fragmented. - Add support for fragmentation of buffer chains. - Remove support for inner fragmentation in frag code itself. Change-Id: If9a97301b7e35ca97ffa5c0fada2b9e7e7dbfb27 Signed-off-by: Ole Troan <ot@cisco.com>
2018-07-23fix vector index range checksEyal Bari1-1/+1
Change-Id: I63c36644c9d93f2c3ec6606ca0205b407499de4e Signed-off-by: Eyal Bari <ebari@cisco.com>
2018-06-11MTU: Software interface / Per-protocol MTU supportOle Troan1-3/+1
This patch separates setting of hardware interfaec and software interface MTU. Software MTU is L2 payload MTU (i.e. not including L2 header). Per-protocol MTU for IPv4, IPv6 and MPLS can also be set. Currently only IP4, IP6 are enabled in adjacency / rewrite code. Documentation in src/vnet/MTU.md Change-Id: Iee2fd6f0bbc8210748dd8e073ab9fab87d323690 Signed-off-by: Ole Troan <ot@cisco.com>
2018-05-25VPP-1277: IPIP - Copy TOS/TC from inner packet to outer.Ole Troan1-6/+49
Add support for either copying TOS/TC from inner packet to outer, or set to fixed value. Change-Id: I716a95f875349acec94317b266c8cf9f2f81a785 Signed-off-by: Ole Troan <ot@cisco.com>
2018-04-13Revert "MTU: Setting of MTU on software interface (instead of hardware ↵Damjan Marion1-3/+4
interface)" This reverts commit 70083ee74c3141bbefb185525315f1b34497dcaa. Reverting as this patch is causing following crash: 0: /home/damarion/cisco/vpp3/build-data/../src/vnet/devices/devices.h:131 (vnet_get_device_input_thread_index) assertion `queue_id < vec_len (hw->input_node_thread_index_by_queue)' fails Aborted Change-Id: Ie2a365032110b1f67be7a9d832885b9899813d39 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-04-13MTU: Setting of MTU on software interface (instead of hardware interface)Ole Troan1-4/+3
Change-Id: I98bd454a761a1032738a21edeb0fe847e801f901 Signed-off-by: Ole Troan <ot@cisco.com>
2018-03-14IPIP: Add IP{v4,v6} over IP{v4,v6} configured tunnel support.Ole Troan1-0/+566
Change-Id: I166301c9e2388bae5f70ec0179d663a2703e27f5 Signed-off-by: Ole Troan <ot@cisco.com>