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path: root/src/plugins/nat/out2in_ed.c
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2020-03-31nat: fix unknown proto translation out2in_edAlexander Chernavin1-2/+2
An unknown proto packet can be processed as UDP with destination port rewriting which breaks the original packet. With this commit, stop processing unknown proto packets after nat44_ed_out2in_unknown_proto() execution. Type: fix Change-Id: Iea93faf3c282f542d5ee7120c15e1027c1e4abc9 Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
2020-03-26nat: transitory timeout for TCP CLOSED stateKlement Sekera1-8/+38
Wait transitory timeout seconds before moving internal state of TCP session to CLOSED state per RFC 7857. This patch implements this functionality for endpoint-dependent NAT. Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I4491d831cd9edf63fae520a516cdbe590bac85db
2020-03-25nat: fix error countersKlement Sekera1-0/+5
Type: fix Change-Id: I021b1427362f4bdba1c0ebc9863c9143dd6b3cb7 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2020-03-13nat: timed out session scavenging upgradeFilip Varga1-2/+15
Patch changes the behavior of session scavenging and fixes multiple nat issues. Allows proper session clearing and removes issue with lingering sessions in session db. Patch also updates and fixes CLI/API calls for better readability of session state metrics. Fixes security issue that would allow attacker to reuse timed out session in both directions (in2out/out2in). Type: improvement Signed-off-by: Filip Varga <fivarga@cisco.com> Change-Id: I78897585a2a57291fad5db6d457941aa0a0457bd
2020-02-20nat: nat44 split slow and fast pathFilip Varga1-567/+169
Type: improvement Change-Id: I07c7e1c154583906ac9af958f22ed9a1be382f4a Signed-off-by: Filip Varga <fivarga@cisco.com>
2020-01-17nat: refactor of port/address allocation functionsFilip Varga1-4/+4
Change-Id: Ie2a3c0f44322dd8415603b7ce51bb72d72769c95 Ticket: VPP-1815 Type: refactor Signed-off-by: Filip Varga <fivarga@cisco.com>
2020-01-03nat: use SVRKlement Sekera1-546/+221
Remove NAT's implementation of shallow virtual reassembly with corresponding CLIs, APIs & tests. Replace with standalone shallow virtual reassembly provided by ipX-sv-reass* nodes. Type: refactor Change-Id: I7e6c7487a5a500d591f6871474a359e0993e59b6 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-12-12nat: session cleanup fixFilip Varga1-0/+3
Ticket: VPP-1795 Type: fix Change-Id: Ib3b5742119d7013c293a11eb3dd1aadf46b422dd Signed-off-by: Filip Varga <fivarga@cisco.com>
2019-11-19nat: respect arc features (multi worker)Filip Varga1-139/+138
Type: fix Ticket: VPP-1747 Change-Id: If282aae3e584d7017c200f897b99c8a37eb1b2e5 Signed-off-by: Filip Varga <fivarga@cisco.com>
2019-11-05nat: respect udp checksumFilip Varga1-26/+101
Type: fix Change-Id: I732be02d2e2b854eb589c3fa10f980ef2dbe8dfc Signed-off-by: Filip Varga <fivarga@cisco.com>
2019-11-04nat: revert respect udp checksumOle Troan1-101/+26
This reverts commit 0d75f783644a24b219ed79d9f9c17387783f67ca. Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: Iaf33301201897e6646eba2b4157e2a45f5fd30f2
2019-10-28nat: respect udp checksumFilip Varga1-26/+101
Type: fix Change-Id: I73895fa0101bd50483160c8dc6faac2c67513077 Signed-off-by: Filip Varga <fivarga@cisco.com>
2019-08-22nat: handoff traffic matching for dynamic NATFilip Varga1-79/+3
Type: feature Change-Id: I5c5af6f9acb340cc674323305104b8ce23e6d21d Signed-off-by: Filip Varga <fivarga@cisco.com>
2019-07-31nat: elog rewrite for multi-worker supportFilip Varga1-17/+17
Type: fix Change-Id: I04f136a04bc022d223e4bcb5c59920bd1f1fd560 Signed-off-by: Filip Varga <filipvarga89@gmail.com>
2019-05-30NAT: create bypass in correct thread if workers>1Alexander Chernavin1-9/+40
Change-Id: I70817579a09a7026f5fa7c8e71babded891ea285 Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
2019-04-26nat: fix ED mode unknown proto session managementMatthew Smith1-1/+10
In endpoint dependent mode, when a session at the head of a user LRU is reused, if the IP protocol for that session was unknown (any other than tcp, udp, or icmp), the attempt to delete the session mapping from the in2out bihash was not using the same key that was used when the mapping was added. This would cause the deletion of the mapping to fail. If packets arrive later which match the original session, the search for the session key would succeed when it should have failed and the session, which is now associated with a different pair of endpoints, may end up being updated when it should not be. Update the key generation when reallocating an existing session to do the right thing if the session is for an unknown protocol. Also update format_nat_session() for unknown protocols so that 'vppctl show nat44 session detail' will display the protocol correctly. In endpoint dependent mode, the IP protocol is stored in the port field on a session if the protocol is unknown. The value is stored in host byte order, but the format function was swapping the bytes before writing the protocol. Change-Id: I9e8daadd4569cb2610532dab4e4f41d1567cf3d1 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2019-02-27NAT44: active-passive HA (VPP-1571)Matus Fabian1-12/+24
session synchronization so that we can build a plain active-passive HA NAT pair Change-Id: I21db200491081ca46b7af3e82afc677c1985abf4 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2019-02-18NAT: VPP-1552 code migration from old multiarch schemeFilip Varga1-31/+16
Change-Id: I88f3df8aaa521e7707ef3335acdbf1ab41e7ee28 Signed-off-by: Filip Varga <fivarga@cisco.com>
2019-01-21NAT: VPP-1537 IPFIX per worker processingFilip Varga1-3/+5
Change-Id: I428bd25a513eb9fe65bea56572fea8cab7c51681 Signed-off-by: Filip Varga <fivarga@cisco.com>
2018-12-14NAT: counters (VPP-1484)Matus Fabian1-12/+48
Change-Id: I5d1852a09712adfe7547c200d161539736aca6f5 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-11-29NAT: syslog - sessions logging (VPP-1139)Matus Fabian1-0/+21
Change-Id: I6e0b7cf37c1a9ac66f8ac011db29504e57844ee9 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-11-19NAT44: fix bug in TCP close with output-feature interface (VPP-1493)Matus Fabian1-1/+30
Change-Id: If8c883d6b1ee58de9a03012d3567ec82211a0225 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-11-14Remove c-11 memcpy checks from perf-critical codeDave Barach1-6/+5
Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1 Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-08NAT44: do not create session record for identity mapping (VPP-1439)Matus Fabian1-6/+34
Change-Id: I39a3146a4e4ba8eadf50af7113b9ae6b1c1d688f Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-09-26NAT44: endpoint-dependent mode session timeout improvement (VPP-1423)Matus Fabian1-0/+14
Change-Id: Ib62e503f4eb5d72431288de32f417a4553df4e0c Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-09-25NAT44: fix nat44_o2i_ed_is_idle_session_cb (VPP-1424)Matus Fabian1-1/+1
Change-Id: I47e1fc789ddf3dbfdf9768b99d5c3a8804d6b750 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-09-24NAT44: endpoint-dependent mode session timeout improvement (VPP-1423)Matus Fabian1-3/+3
Change-Id: I630f3da1ea4e6e50a50f1352c097becef1efe3c0 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-09-21NAT: Refactoring / Housekeeping (VPP-1415)Matus Fabian1-0/+1868
Change-Id: Ia3ce24cc94f9b2fb331ad62a4181ddcd41bc78ca Signed-off-by: Matus Fabian <matfabia@cisco.com>