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path: root/src/plugins/map/ip4_map.c
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2020-09-01ip: fix ip zero checksum verificationBenoît Ganne1-1/+1
In one's complement, there are two representations of zero: the all zero and the all one bit values, often referred to as +0 and -0. See RFC 1624 section 3 for more details. This used to be taken care of in ip4_header_checksum(), but it is no longer the case. The check ip->checksum == ip4_header_checksum (ip) is no longer correct in the -0 case. Always use ip4_header_checksum_is_valid() instead (which behaves correctly since 9a79a1ab931c3b5a7ae07d6f0fcfef7c4368a2c4). Type: fix Fixes: e5f0050c7a5d411f96af6401797529d58825e2af Change-Id: Iacc6b60645a834287b085aecb9e3fdb4554cf0cf Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-02-20map: honor pre-resolve param in map-tAlexander Chernavin1-14/+0
With this commit, forward the translated packet directly to the specified next-hop if pre-resolve param is enabled in MAP-T. Type: fix Change-Id: Ie26080c7820318c7982599577a4af6e4d01a0574 Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
2019-11-19map: Fix TCP MSS clamping for MAP-E traffic.Jon Loeliger1-0/+14
Original MSS clamp patch by Vladimir Ratnikov. Modified to apply only to TCP packets. Type: fix Test: Wrote new unit test to ensure MAP-E TCP MSS clamping. Change-Id: I77c69714a2e3cc3b7473aa12b645243bb595c2a2 Signed-off-by: Vladimir Ratnikov <vratnikov@netgate.com> Signed-off-by: Jon Loeliger <jdl@netgate.com>
2019-11-11ip: functional interface to ip fragmentationOle Troan1-202/+66
This provides a functional interface to IP fragmentation. Allowing external features to fragment. Supports arbitrary encap size, for e.g. MPLS or inner fragmentation of tunnels. This also removed dual loop in MAP that was fundamentally broken. Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: Ia89ecec8ee3cbe2416edbe87630fdb714898c2a8 Signed-off-by: Ole Troan <ot@cisco.com>
2019-10-01map: use SVR for MAP-TKlement Sekera1-9/+3
This change is part of an effort to unify reassembly code. By removing shallow virtual reassembly functionality in MAP and using the common vnet provided shallow virtual reassembly, code size and complexity is reduced. Type: refactor Change-Id: Iec8edd039f7b967b53e17bb9bca228a8b452ac0c Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-09-26map: use SVR for MAP-EKlement Sekera1-285/+29
This change is part of an effort to unify reassembly code. By removing shallow virtual reassembly functionality in MAP and using the common vnet provided shallow virtual reassembly, code size and complexity is reduced. Type: refactor Change-Id: I431f47d4db97154fecaeaecd6719cfc3b83cfc4a Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-12-21MAP: Convert from DPO to input feature.Jon Loeliger1-12/+29
Change-Id: I25c86aea23dff19656449b23133db27b1f062ac0 Signed-off-by: Jon Loeliger <jdl@netgate.com> Signed-off-by: Ole Troan <ot@cisco.com>
2018-12-18MAP: Remove dual loop in MAP-T in preparation for refactor.Ole Troan1-1/+0
Change-Id: I3c77cadaa7b677073af00407f368bd48d703fdac Signed-off-by: Ole Troan <ot@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>
2018-09-27IPIP and IPv6 fragmentationOle Troan1-3/+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>
2018-07-11avoid using thread local storage for thread indexDamjan Marion1-2/+2
It is cheaper to get thread index from vlib_main_t if available... Change-Id: I4582e160d06d9d7fccdc54271912f0635da79b50 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-06-25MAP: Move MAP-E/T to a plugin.Ole Troan1-0/+754
Only remaining traces of MAP in the src/vnet is now in buffer.h. Awaiting a new buffer opaque API (hint, hint). Change-Id: Ie165561484731f1d7ed6e0f604b43624e06db3f0 Signed-off-by: Ole Troan <ot@cisco.com>