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path: root/src/plugins/nat/nat.h
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2018-04-19Add special Twice-NAT feature (VPP-1221)Juraj Sloboda1-10/+19
When enabled then Twice-NAT is applied only when source IP equals destination IP after DNAT Change-Id: I58a9d1d222b2a10c83eafffb2107f32c1b4aa3a8 Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
2018-04-18NAT44: recycle old sessions for forwarding bypass (VPP-1240)Matus Fabian1-0/+7
Change-Id: I7e6b0e7e91cc032b1685f35de5d84363a85158a5 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-04-11NAT44: fix setting of flag SNAT_SESSION_FLAG_LOAD_BALANCING (VPP-1235)Matus Fabian1-1/+2
Change-Id: Ieeafb41d10959700bfd434cd455800af31944150 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-03-24User session counters stay <= per-user limitMatthew Smith1-0/+12
When a user session is allocated/reused, only increase one of the session counters for that user if the counters are below the per-user limit. THis addresses a SEGV that arises after the following sequence of events: - an outside interface IP address is put in a pool - a user exceeds the number of per-user translations by an amount greater than the number of per-user translations (nsessions + nstaticsessions > 100 + 100) - the outside interface IP address is deleted and then added again (observed when using DHCP client, likely happens if address changed via CLI, API also) - the user sends more packets that should be translated When nsessions is > the per-user limit, nat_session_alloc_or_recycle() reclaims the oldest existing user session. When an outside address is deleted, the corresponding user sessions are deleted. If the counters were far above the per-user limit, the deletions wouldn't result in the counters dropping back below the limit. So no session could be reclaimed -> SEGV. Change-Id: I940bafba0fd5385a563e2ce87534688eb9469f12 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2018-01-25NAT44: add opaque string tag to static mapping APIs (VPP-1147)Matus Fabian1-2/+4
Change-Id: I620e2081285ca8ac5c2da8efc12fe6f540ea4fd1 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-01-25NAT: nat.c refactor (split out CLI) (VPP-1140)Matus Fabian1-0/+6
Moved CLI from nat.c to nat44_cli.c Split "show nat44" to: show nat44 addresses show nat44 interfaces show nat44 static mappings show nat44 interface address show nat44 sessions detail show nat44 deterministic mappings show nat44 deterministic timeouts show nat44 deterministic sessions show nat workers Change-Id: I2d1be8941dd0e4a9e037f4a4d2cd192389beb8ed Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-01-22NAT44: asymmetrical static mapping rule (VPP-1135)Matus Fabian1-1/+1
add option to NAT44 static mapping API/CLI to make rule asymmetrical (rule match only out2in direction) Change-Id: If262a3ff375a24d3059f0de1f1ac387a4fe09475 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-01-11NAT44: asymmetrical load balancing static mapping rule (VPP-1132)Matus Fabian1-1/+2
Add option to NAT44 load balancing static mapping API/CLI to make rule asymmetrical (rule match only in out2in direction). Change-Id: I325ecef5591e4bf44ce4469a24d44fe56c3bb2e9 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2018-01-05Add support for 464XLAT NAT44 mode (VPP-1045)Juraj Sloboda1-0/+2
Change-Id: I24e7a26972bbbfcea100292b212b29ae7a349335 Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
2017-12-20Translate matching packets using NAT (VPP-1069)Juraj Sloboda1-0/+3
Add API function which enables forwarding of packets not matching existing translation or static mapping instead of dropping them. When forwarding is enabled matching packets will be translated while non-matching packets will be forwarded without translation. Change-Id: Ic13040cbad16d3a1ecdc3e02a497171bef6aa413 Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
2017-12-19NAT: Twice NAT44 (VPP-969)Matus Fabian1-10/+51
Translation of both source and destination addresses and ports for 1:1 NAT session initiated from outside network (ExternalIP K8 use case). Change-Id: Ic0000497cf71619aac996d6d580844f0ea0edc14 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-12-13NAT64: multi-thread support (VPP-891)Matus Fabian1-5/+0
Change-Id: Iebf859b6d86482e4465423bad598eecf87e53ec4 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-11-09Port restricted NAT44 (VPP-1048)Matus Fabian1-0/+13
For the MAP-E CE limit port choice based on PSID CLI: nat44 addr-port-assignment-alg map-e psid <n> psid-offset <n> psid-len <n> Change-Id: Iecceee61fca372cb5790c16993a82fbdc9930f0f Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-11-07SNAT: IP fragmentation (VPP-890)Matus Fabian1-3/+29
Translation of fragmented packets. Change-Id: I9b1f2e9433ce273638080f32c2d3bff39c49899d Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-11-07NAT: DS-Lite (VPP-1040)Matus Fabian1-3/+6
Dual-Stack Lite enables a broadband service provider to share IPv4 addresses among customers by combining two well-known technologies: IPv4-in-IPv6 and NAT. Change-Id: I039740f8548c623cd1ac89b8ecda1a6cc4aafb9c Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-11-01nat plugin - fix test logicGabriel Ganne1-1/+1
warning found by clang: warning: logical not is only applied to the left hand side of this bitwise operator [-Wlogical-not-parentheses] Change-Id: I964651a4444b11da145edc329da83675cd830f78 Signed-off-by: Gabriel Ganne <gabriel.ganne@enea.com>
2017-10-26NAT: delete session API/CLI (VPP-1041)Matus Fabian1-0/+2
Administratively delete NAT44 session for specific inside/outside addresses and port pair. Change-Id: If5ab500ac3592c7153d6d8f2cc0297df7309fbc3 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-10-25One armed NAT (VPP-1035)Matus Fabian1-1/+7
Use a single physical interface in order to accomplish NAT44/NAT64. Change-Id: I0c8138953a7a4075df306172e125abad771315e4 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-10-09NAT: fixed ICMP broken translation for GRE tunnel interface (VPP-1008)Matus Fabian1-6/+13
Change-Id: Ie3245b96c511cc30915e70e8c881f445291a38c2 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-09-26NAT: remove worker_by_in lookup hash table (VPP-992)Matus Fabian1-16/+0
Change-Id: I3873d3e411bf93cac82e73a0b8e3b22563aaf217 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-09-25NAT: session number limitation to avoid running out of memory crash (VPP-984)Matus Fabian1-0/+10
Change-Id: I7f18f8c4ba609d96950dc1f833feb967d4a099b7 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-09-21NAT: remove worker_by_out lookup hash table (VPP-989)Matus Fabian1-3/+1
Change-Id: Ibcd2cf22348ae5a72770a8f8ad25cbe8df7fd390 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-09-20NAT: move session and user lookup tables to per thread data (VPP-986)Matus Fabian1-7/+7
Change-Id: I41a51bb36e31e05c76fef0b34fe006afbee27729 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-09-12NAT: fixed bug in snat_alloc_outside_address_and_port (VPP-981)Matus Fabian1-1/+3
Change-Id: I6c5eccd4193c44604da3fd27c108defe71b38a4b Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-09-06NAT: Destination NAT44 with load-balancing (VPP-954)Matus Fabian1-5/+18
added load-balancing static mappings with unequal load support Change-Id: Ie505e41f24d46f812b94dd28bdafe3dc170a6060 Signed-off-by: Matus Fabian <matfabia@cisco.com>
2017-08-23NAT: Rename snat plugin to nat (VPP-955)Matus Fabian1-0/+541
Change-Id: I30a7e3da7a4efc6038a91e27b48045d4b07e2764 Signed-off-by: Matus Fabian <matfabia@cisco.com>