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2022-08-11ip: Use .api declared error countersNeale Ranns17-386/+648
Type: improvement Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I822ead1495edb96ee62e53dc5920aa6c565e3621
2022-06-29classify: use 32 bits hashBenoît Ganne1-16/+16
classify hash used to be stored as u64 in buffer metadata, use 32 bits instead: - on almost all our supported arch (x86 and arm64) we use crc32c intrinsics to compute the final hash: we really get a 32-bits hash - the hash itself is used to compute a 32-bits bucket index by masking upper bits: we always discard the higher 32-bits - this allows to increase the l2 classify buffer metadata padding such as it does not overlap with the ip fib_index metadata anymore. This overlap is an issue when using the 'set metadata' action in the ip ACL node which updates both fields Type: fix Change-Id: I5d35bdae97b96c3cae534e859b63950fb500ff50 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2022-06-14ip: reassembly - Add node level stats, fix customapp behaviorVijayabhaskar Katamreddy2-16/+77
Type: fix Added stats for success and failure cases Fixed Custom app behaviors for the error / drop cases Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com> Change-Id: Id6e981c7be5c5b3cee5af2df505666d5558da470
2022-06-10ip: improve ip ACL tracesBenoît Ganne1-8/+23
Type: improvement Change-Id: I85c73cb940d81d0b249eda0d57de135bcd798418 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2022-06-01ip: unformat_ip_address should no modify its argument on failureBenoît Ganne1-8/+9
When failing to match an ip address, we should not reset the ip address that could have been initialized by a previous match. Type: fix Change-Id: I026766391eb3eb8230f75f66bf4b681e774741d9 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2022-05-27ip: reassembly - Fixing buffer leaks, corruption in v6 reasmVijayabhaskar Katamreddy2-42/+117
Type: fix *Buffer leaks and corruptions during internal errors, either overriding or missing to add the buffer to the list Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com> Change-Id: I1ead1eca1cde10a36d60dbfcfe36ca6375690b03
2022-05-26ip: reassembly - pacing reassembly timeouts for v6Vijayabhaskar Katamreddy1-9/+35
Type: fix Pace the main thread activity for reassembly timeouts, to avoid barrier syncs Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com> Change-Id: Iebe9a38d2a7a6471afa6621f12bb545668dc8384
2022-05-25docs: update spelling word list and fix typosDave Wallace1-5/+5
- update wordlist and fix typos so that 'make docs-spell' passes - sort spelling_wordlist.txt - update docs maintainers list Type: docs Signed-off-by: Dave Wallace <dwallacelf@gmail.com> Change-Id: I38ac7850c604c323427d2bb6877ea98bd10bcc38
2022-05-23ip: reassembly - fixing stepping index in a better wayVijayabhaskar Katamreddy1-8/+8
Type: fix pool_is_free_index() check is performed only for the first element Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com> Change-Id: Icadc715a9b54761ec69805a134a69a262137536d
2022-05-23ip: reassembly - adding custom reassembly nodeVijayabhaskar Katamreddy1-13/+75
Type: fix Custom node functionality is missing in v6, so bringing in similar to v4 functionality into ip6 as well Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com> Change-Id: I28b0be2fc55a00bfc0b456b1caaa1dcf5641a44e
2022-05-19api: refactor api data storageDamjan Marion1-4/+4
single struct to hold all api handler, flags, etc. Provide functions to toggle flags instead of writing directly to internal data. Type: refactor Change-Id: I4730d7290e57489de8eda34a72211527e015b721 Signed-off-by: Damjan Marion <damarion@cisco.com>
2022-05-19 ip: reassembly - pacing reassembly timeoutsVijayabhaskar Katamreddy1-4/+29
Type: fix Pace the main thread activity for reassembly timeouts, to avoid barrier syncs Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com> Change-Id: If8c62a05c7d28bfa6ac530c2cd5124834b4e8a70
2022-05-19ip: reassembly - increasing the nbuckets for reassVijayabhaskar Katamreddy2-47/+84
Type: fix Adding stats from debugging point of view Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com> Change-Id: I3118d3fd5d630fad80a42ab960e30459789123cf
2022-05-18ip: reassembly - increasing the nbuckets for reassVijayabhaskar Katamreddy2-2/+6
Type: fix as number of reass contexts increasing based on workers, increasing the number of nbuckets for bihash Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com> Change-Id: I83d061a709ecb8845ce745b18d03fdefc795787f
2022-05-16ip: format table ids with %uNathan Skrzypczak1-2/+2
Type: fix Change-Id: I69f7e23b23e8cfcfe57ba019862470e0eb4b06db Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2022-05-13ip: reassembly - Fixing buffer leaks, corruptionVijayabhaskar Katamreddy1-50/+126
Type: fix *Buffer leaks and corruptions during internal errors, either overriding or missing to add the buffer to the list Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com> Change-Id: I6c2406cff53a741e800e2d05593696f3e9fd6ff5
2022-05-10ip: reassembly: add documentationKlement Sekera1-0/+221
Type: docs Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I23008cde47d8b7a531346eab02902e2ced18742a
2022-05-10ip: fix buffer leaks in reassemblyKlement Sekera2-29/+32
Type: fix Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I952ba7e042779855e29628d048da7edec1caaafd
2022-04-26linux-cp: sync addr and neigh only for lcp interfacesStanislav Zaikin2-3/+6
Type: fix Signed-off-by: Stanislav Zaikin <zstaseg@gmail.com> Change-Id: I792467b73449074e59c4232b1f82d134c399624c
2022-04-12ip: fix arc start in ip46-local for local mfib entriesAlexander Chernavin2-25/+25
Type: fix After changes made in f840880, VRRP IPv6 cannot reply for neighbor solicitations requesting the link layer address of the configured virtual address. VRRP IPv6 enables the vrrp6-nd-input feature in the ip6-local feature arc for an interface on which a virtual router is configured. When neighbor solicitations arrive on that interface, ip6-local should start feature arc walk for that interface and the messages should be processed by vrrp6-nd-input. The problem is that currently, the feature arc is started for the interface obtained from the receive DPO that has interface unset (i.e. max u32) for local mfib entries. Thus, the feature arc is started not on the interface the messages were received on and vrrp6-nd-input is not traversed. With this fix, if interface obtained from the receive DPO is unset, use RX interface from the buffer to start the ip46-local feature arc. Also, enable tests of this case for both IPv4 and IPv6 address families that are currently tagged as extended and not run on every change. They configure VRRP with priority 255 and are expected to be stable. Signed-off-by: Alexander Chernavin <achernavin@netgate.com> Change-Id: I11ef3d5a7a986e04431e8613d1510b8666094bd7
2022-04-04vppinfra: make _vec_len() read-onlyDamjan Marion5-7/+9
Use of _vec_len() to set vector length breaks address sanitizer. Users should use vec_set_len(), vec_inc_len(), vec_dec_len () instead. Type: improvement Change-Id: I441ae948771eb21c23a61f3ff9163bdad74a2cb8 Signed-off-by: Damjan Marion <damarion@cisco.com>
2022-03-30ip: Reference count the enabling the punt featureNeale Ranns2-4/+14
Type: fix otherwise punt features are applied multiple times to the same packet if enabled multiple times Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: If0cbd9065275f68a10fd6d35e4f7a7c7508245e0
2022-03-30udp: fix inner packet checksum calculation in udp-encapMauro Sardara1-1/+7
When computing the inner packet checksum, the code wrongly assumes that the IP version of the inner packet is the same of the outer one. On the contrary, it is perfectly possible to encapsulate v6 packets into v4 and viceversa, so we need to check the IP format of the inner header before calling vnet_calc_checksums_inline. Ticket: VPP-2020 Type: fix Signed-off-by: Mauro Sardara <msardara@cisco.com> Change-Id: Ia4515563c164f6dd5096832c831a48cb0a29b3ad Signed-off-by: Mauro Sardara <msardara@cisco.com>
2022-03-28ip: add barrier sync, ip4_ply_pool expand caseVladislav Grishenko1-2/+14
ply_create() is not thread safe when the ip4_ply_pool expands. Type: fix Signed-off-by: Vladislav Grishenko <themiron@yandex-team.ru> Change-Id: Ie11cc8b1ba587d5e9239a60f4e288492da61368e
2022-03-25fib: fix ip6-ll fib selection for non-ethernet interfacesVladislav Grishenko1-7/+17
Fixes case when packet to link-local address is received over gre/mpls or other non-ethernet interface and ip6-ll fib for it is undefined. If by a chance ip6-ll fib index is valid, packet will be passed to some ip6 fib with possibilities to be sent out over unrelated interface or be looped again into ip6-link-local dpo till oom and crash. Type: fix Signed-off-by: Vladislav Grishenko <themiron@yandex-team.ru> Change-Id: Ie985f0373ea45e2926db7fb0a1ff951eca0e38f6
2022-03-24ip: The check for 'same packet' must include the FIB indexNeale Ranns1-2/+11
Type: fix otherwise if two packets arrive with the same source address but from different VRFs, then they are treated as the same and they use the same LB and thus share the same fate. but the lookup, when done, results in two different LBs, and hence the fate can be different. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Id6e16f7c577a561d9ddd7066339fa4385361d07f
2022-03-23ip: Add unformat for flow_hash_configNathan Skrzypczak2-1/+37
Type: improvement This also makes the is_white_space function public Change-Id: Ifc1c0d4509f3ecae14f09bb5fa7a2eea33c49b09 Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2022-03-18vppinfra: refactor *_will_expand() functionsDamjan Marion1-3/+1
Type: refactor Change-Id: I3625eacf9e04542ca8778df5d46075a8654642c7 Signed-off-by: Damjan Marion <damarion@cisco.com>
2022-03-18ip: fix assert in ip4_ttl_incAloys Augustin1-1/+3
There is no need to verify the checksum for packets that have the IP checksum offload flag set. This uses the same logic as ip4_ttl_and_checksum_check. Type: fix Signed-off-by: Aloys Augustin <aloaugus@cisco.com> Change-Id: I177b07212a992362a4c965c074dcecf1e504c593
2022-03-09ip: IPv4 Fragmentation fix for l2fragmetable sizeNeale Ranns1-10/+7
Type: fix The l2unfragmentable size is not included in the calculation of 'max', the maximum amount of data that can be added to a fragment, therefore the fragments created are too big. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Id1e949ad98203b6f8ea2f55322ef6fa3d507e2a6
2022-03-08ip: set fib_index before exiting input ACL nodeArthur de Kerhor1-40/+75
While setting an ACL, a user can specify the adjacency to follow after the input ACL node. Thus, we may skip a lookup and enter directly a local node (ex: ip4_local). To prevent the local source check from failing, we need to specify the fib index. And, we have to do it just before exiting the input ACL node because the l2_classify object is overlapping with the fib_index in the vnet_buffer_opaque_t struct. We could have added a padding to avoid this overlap but there is no place for that in the structure. Type: fix Signed-off-by: Arthur de Kerhor <arthurdekerhor@gmail.com> Change-Id: I383c36e4aec08d181f966f28565aefed950d2a74
2022-03-07ip: Fixes for IPv6 and MPLS fragmentationNeale Ranns1-11/+12
Type: fix - IPv6 fragmentation did not work if the packet spaneed multiple buffers, because the 'len' calculation to did max out at the size of a buffer - IPv6 fragmentation did not work when the l2unfragmentable size was non-zero, it was not used in the correct places - IPv6oMPLS fragmentation would fragment all IPv6, it should do so only for link local - IPv6oMPLS should send back TooBig ICMP6 for non locally generated Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Ie8f02cdfdd7b7e8474e62b6d0acda8f20c371184
2022-03-04ip: rate-limit the sending of ICMP error messagesNeale Ranns2-2/+58
Type: improvement For error conditions, such as TTL expired, dest unreach, etc, Rate limit the sending of ICMP error messages. The rate limiting is done based on src,dst IP address of the received packet. the rate limit has been chosen, somewhat arbitrarily, to be 1e-3. This is the same limit as the ARP throttling. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I4a0b791cde8c941a9bf37de6aa5da56779d3cef4
2022-03-04ip: fix overflow in ip6_ext_header_walkBenoît Ganne1-1/+1
ip6_ext_hdr_chain_t->eh is IP6_EXT_HDR_MAX elements. Type: fix Change-Id: I28b8d610d8f5c0c520c8391c37b86e837655ab12 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2022-03-03ip: Path MTU DPO allocation function is publicNeale Ranns2-7/+23
Type: refactor check for pool expansion in the DPO allocation, just in case. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I6ba7dd66313630d3f24a51700ab4486ba43d856b
2022-02-17ip: Move the IPv6 echo responder into the ping pluginNeale Ranns1-187/+0
Type: refactor To be consistent with the location of the IPv4 responder Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Ie3a5c3ecc10755317591d7ff57b74770c2798e77
2022-02-15tcp: Do not include the tcp_packet.h file in the ip4_packet.hNeale Ranns3-96/+2
Type: refactor IP4 does not depend on TCP (it's the other way around). This upside down dependency leads to some nasty circular includes when trying to use ip46_address.h in interface.h Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I4a1bd21543b08b9c1cf1e5563da738414734a878
2022-02-07igmp: make sure fib_index is set before delivering to ip4-localBenoît Ganne1-0/+2
IGMP packets with Router Alert option are delivered to ip4-local without going through ip4-lookup. Make sure fib_index is initialized properly. Type: fix Change-Id: Iab090a33c4c759b6d7f68c28a0b3f4da7a9de864 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2022-02-03ip nat: use ip rx sw_if_index in ip-local arc startFlorin Coras2-9/+8
This also changes the behavior of the nat44-ei hairpinning feature. Rather then enabling the feature on every nat interface, it is enabled only on local0. Type: improvement Signed-off-by: Filip Varga <fivarga@cisco.com> Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I4e16a83c9e328aa75fc61df508b620ef743ca775
2022-01-31ip: reassembly - add a way to disable for forusKlement Sekera11-34/+305
Add API to disable full reassembly of "forus" packets. Mark packets passing through ip[4|6]-local nodes with a new buffer flag and check for that flag in reassembly. Enable IP6 "forus" full reassembly by default to be consistent with existing IP4 setting. Type: improvement Change-Id: I7067792fcd4304182654237968e4c4d9293c6143 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2022-01-31ip: fix length calculation in ip6-receiveKlement Sekera1-1/+1
Replace unconditional usage of buffer->total_length_not_including_first_buffer with a logic checking whether that length is set to a valid value. Type: fix Fixes: 17478e4eb81d384f171ca27c9110a051cd434f16 Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I161d0957d62cc23826edd821aa5560bcfc5c1a33
2022-01-25ip: reassembly - fix missing ip6 owner thread initKlement Sekera1-0/+1
Initialize ip6 memory owner thread index in reassembly context to avoid unnecessary handovers. Type: fix Fixes: 630ab5846bceddf8d663e9f488a2dc0378949827 Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I2996caf1f82a0649c97d481b74dce24a96dce326
2022-01-12ip: coverity illegal access in ip6_ext_header_walkOle Troan1-9/+2
*** CID 243670: Memory - illegal accesses (OVERRUN) /src/vnet/ip/ip6_packet.h: 713 in ip6_ext_header_walk() CID 243670: Memory - illegal accesses (OVERRUN) Overrunning array "res->eh" of 4 4-byte elements at element index 5 (byte offset 23) using index "i" (which evaluates to 5). Type: fix Fixes: 03092c1 Change-Id: I27e0435cf10534f3b41e11bf7a5629b5428b0651 Signed-off-by: Ole Troan <ot@cisco.com>
2022-01-09fib: multiple memory leaks upon deleting a VRF tableSteven Luong1-0/+1
fib_table->ft_locks name string for parsing the ip table add|del name <tag> command path list for ip4_specials in mfib mfib->fib_entry_by_dst_address[0..32] mfib entry path_ext, msrc->mfes_exts Type: fix Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: Ia1e0cac577a73608ee1e4b1664b60a66322e81ce
2021-12-24ip: remove archaic vector code from mtrieDamjan Marion2-86/+12
Type: improvement Change-Id: Ib39478a2e6991d721c4ba3ea61c97bfb07238016 Signed-off-by: Damjan Marion <damarion@cisco.com>
2021-12-20ip: SVR fix race conditionKlement Sekera2-2/+14
There could be a race condition where two fragments of one chain end up at the same time on different workers, one overwriting others hash entry. Add a check for that and restart processing on the unlucky worker who ends up being second from hash table POV. This will then result in a proper handover to worker now owning this reassembly. Type: fix Fixes: de34c35fc73226943538149fae9dbc5cfbdc6e75 Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I9eb29c5cb1ffe3b5eb1d5a638e17ab7ba2628d28
2021-12-14api: verify message size on receiptKlement Sekera2-1/+7
When a message is received, verify that it's sufficiently large to accomodate any VLAs within message. To do that, we need a way to calculate message size including any VLAs. This patch adds such funcionality to vppapigen and necessary C code to use those to validate message size on receipt. Drop messages which are malformed. Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I2903aa21dee84be6822b064795ba314de46c18f4
2021-12-14ip: reassembly: drop zero length fragmentsKlement Sekera3-0/+17
Zero length fragments are invalid and should be dropped. This patch adds that. Type: improvement Change-Id: Ic6466c39ca8bf376efe06bb3b7f5d7f1ae812866 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-12-10ip: reassembly: handle atomic fragments correctlyKlement Sekera2-45/+93
If a fragment arrives with fragment offset = 0 and M = 0, it means that this is actually a complete packet and per RFC 8200, it should be treated independently from other fragments. This patch does that. Fragmentation header is stripped and fragment is forwarded irregardles of other existing reassemblies in case of full reassembly and treated the same way as regular packet in shallow virtual reassembly. Type: improvement Change-Id: If3322d5e3160cd755b8465a642702a9166d46cc2 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-12-03ip: extension header parsing fails for fragment headerOle Troan7-291/+263
Refactor and improve boundary checking on IPv6 extension header handling. Limit parsing of IPv6 extension headers to a maximum of 4 headers and a depth of 256 bytes. Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: Ide40aaa2b482ceef7e92f02fa0caeadb3b8f7556 Signed-off-by: Ole Troan <ot@cisco.com>