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2020-09-01ip: fix ip zero checksum verificationBenoît Ganne1-2/+2
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>
2020-05-06docs: clean up make docs jobPaul Vinciguerra1-2/+2
Type: docs Change-Id: I9b5e5137eb4c1e89f6e8d7a278cd11a0fd496471 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-12-10ioam: use explicit api typesOle Troan3-152/+29
Also remove API boilerplate. Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: I62e795f5af3843af7912707ade4ba178ff326942
2019-10-09ioam: remove api boilerplateOle Troan4-153/+11
Note: The VAT _test.c plugins need some more adjustments. Type: refactor Change-Id: Ifa150683d7d68db7950f66ef85eea73c8281ba14 Signed-off-by: Ole Troan <ot@cisco.com>
2019-05-28Add an ip6 local hop-by-hop protocol demux tableDave Barach1-4/+2
Add a minimal ip6 hbh header processing test. ioam plugin: use ip6_local_hop_by_hop_register_protocol() in udp_ping_init(). Please test the ioam plugin udp_ping path AYEC, so I can publish the patch. Change-Id: I74e35276d6c38c31022026cfd238fad5e4a54485 Signed-off-by: Dave Barach <dave@barachs.net>
2019-05-24udp-ping: disable due to conflict with mldv2Florin Coras1-2/+4
Change-Id: I9e6a0fb583b0b6dd9b5e16aa9169bdf7b99a7664 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-05-16init / exit function orderingDave Barach2-12/+13
The vlib init function subsystem now supports a mix of procedural and formally-specified ordering constraints. We should eliminate procedural knowledge wherever possible. The following schemes are *roughly* equivalent: static clib_error_t *init_runs_first (vlib_main_t *vm) { clib_error_t *error; ... do some stuff... if ((error = vlib_call_init_function (init_runs_next))) return error; ... } VLIB_INIT_FUNCTION (init_runs_first); and static clib_error_t *init_runs_first (vlib_main_t *vm) { ... do some stuff... } VLIB_INIT_FUNCTION (init_runs_first) = { .runs_before = VLIB_INITS("init_runs_next"), }; The first form will [most likely] call "init_runs_next" on the spot. The second form means that "init_runs_first" runs before "init_runs_next," possibly much earlier in the sequence. Please DO NOT construct sets of init functions where A before B actually means A *right before* B. It's not necessary - simply combine A and B - and it leads to hugely annoying debugging exercises when trying to switch from ad-hoc procedural ordering constraints to formal ordering constraints. Change-Id: I5e4353503bf43b4acb11a45fb33c79a5ade8426c Signed-off-by: Dave Barach <dave@barachs.net>
2018-12-12VPP-1529: check hop-by-hop header lengthDave Barach1-7/+37
Fix a single packet-of-death case, caught by vlib_buffer_advance() in debug images. Change-Id: I9c107f20d7c053c3e40a0756dd7ca1c3be276a1a Signed-off-by: Dave Barach <dave@barachs.net>
2018-11-14Remove c-11 memcpy checks from perf-critical codeDave Barach1-1/+1
Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1 Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-23c11 safe string handling supportDave Barach2-2/+2
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-08-25ioam: one api test plugin instead of fiveDamjan Marion1-1/+1
Change-Id: I715dade7c81f2ba6a0a5297123f588563833c3fb Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-05-13Improve ipfix template packet rewrite constructionDave Barach1-2/+5
Instead of repeatedly cutting, pasting, and hacking to create a new callback, use vnet_flow_rewrite_generic_callback(). Add three arguments to the flow rewrite callback: (in) pointer to an array of report elements, (in) length of array, (out) pointer to the stream index Change existing code prototypes. Code owners encouraged to evaluate whether they can use the generic callback or not, at leisure. /* ipfix field definitions for a particular report */ typedef struct { u32 info_element; u32 size; } ipfix_report_element_t; Best generated like so: _(sourceIPv4Address, 4) \ _(destinationIPv4Address, 4) \ _(sourceTransportPort, 2) \ _(destinationTransportPort, 2) \ _(protocolIdentifier, 1) \ _(flowStartMicroseconds, 8) \ _(flowEndMicroseconds, 8) static ipfix_report_element_t simple_report_elements[] = { foreach_simple_report_ipfix_element }; ... /* Set up the ipfix report */ memset (&a, 0, sizeof (a)); a.is_add = 1 /* to enable the report */ ; a.domain_id = 1 /* pick a domain ID */ ; a.src_port = UDP_DST_PORT_ipfix /* src port for reports */ ; a.rewrite_callback = vnet_flow_rewrite_generic_callback; a.report_elements = simple_report_elements; a.n_report_elements = ARRAY_LEN (simple_report_elements); a.stream_indexp = &jim->stream_index; a.flow_data_callback = simple_flow_data_callback; /* Create the report */ rv = vnet_flow_report_add_del (frm, &a, &template_id); if (rv) return rv; ... Change-Id: If6131e6821d3a37a29269c0d58040cdf18ff05e4 Signed-off-by: Dave Barach <dave@barachs.net>
2018-05-04Flow: Rename IPFIX exporter.Ole Troan1-1/+1
Change-Id: I9363cf54b73f7cfd8622af6f1cb250438ea0d3b6 Signed-off-by: Ole Troan <ot@cisco.com>
2018-05-04Harmonize vec/pool_get_aligned object sizes and alignment requestsDave Barach1-0/+3
Object sizes must evenly divide alignment requests, or vice versa. Otherwise, only the first object will be aligned as requested. Three choices: add CLIB_CACHE_LINE_ALIGN_MARK(align_me) at the end of structures, manually pad to an even divisor or multiple of the alignment request, or use plain vectors/pools. static assert for enforcement. Change-Id: I41aa6ff1a58267301d32aaf4b9cd24678ac1c147 Signed-off-by: Dave Barach <dbarach@cisco.com>
2018-01-23VPPAPIGEN: vppapigen replacement in Python PLY.Ole Troan1-1/+1
This is a version of the VPP API generator in Python PLY. It supports the existing language, and has a plugin architecture for generators. Currently C and JSON are supported. Changes: - vl_api_version to option version = "major.minor.patch" - enum support - Added error checking and reporting - import support (removed the C pre-processor) - services (tying request/reply together) Version: option version = "1.0.0"; Enum: enum colours { RED, BLUE = 50, }; define foo { vl_api_colours_t colours; }; Services: service { rpc foo returns foo_reply; rpc foo_dump returns stream foo_details; rpc want_stats returns want_stats_reply events ip4_counters, ip6_counters; }; Future planned features: - unions - bool, text - array support (including length) - proto3 output plugin - Refactor C/C++ generator as a plugin - Refactor Java generator as a plugin Change-Id: Ifa289966c790e1b1a8e2938a91e69331e3a58bdf Signed-off-by: Ole Troan <ot@cisco.com>
2018-01-15fix udp_ping api naming errorGabriel Ganne3-35/+17
Error messages: ERROR:VAPI CPP GEN:Cannot find reply to message `udp_ping_add_del_req' ERROR:VAPI CPP GEN:Cannot find reply to message `udp_ping_export_req' ERROR:VAPI C GEN:Cannot find reply to message `udp_ping_add_del_req' ERROR:VAPI C GEN:Cannot find reply to message `udp_ping_export_req' Api was *_req/*_resp, but when explicitely declared, the reply should then have been *_req_reply. Both api response are empty, so I propose to remove them, and use autoreply API changes: rename udp_ping_add_del_req -> udp_ping_add_del rename udp_ping_export_req -> udp_ping_export delete udp_ping_add_del_reply (empty response) delete udp_ping_export_reply (empty response) vl_api_version 1.0.0 ->2.0.0 Change-Id: Id3456c8101a7689fbc56dc2d9076625c2b3af0ad Signed-off-by: Gabriel Ganne <gabriel.ganne@enea.com>
2017-10-09vppapigen: support per-file (major,minor,patch) version stampsDave Barach1-0/+1
Add one of these statements to foo.api: vl_api_version 1.2.3 to generate a version tuple stanza in foo.api.h: /****** Version tuple *****/ vl_api_version_tuple(foo, 1, 2, 3) Change-Id: Ic514439e4677999daa8463a94f948f76b132ff15 Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Ole Troan <ot@cisco.com>
2017-10-03Repair vlib API socket serverDave Barach3-3/+3
- Teach vpp_api_test to send/receive API messages over sockets - Add memfd-based shared memory - Add api messages to create memfd-based shared memory segments - vpp_api_test supports both socket and shared memory segment connections - vpp_api_test pivot from socket to shared memory API messaging - add socket client support to libvlibclient.so - dead client reaper sends ping messages, container-friendly - dead client reaper falls back to kill (<pid>, 0) live checking if e.g. a python app goes silent for tens of seconds - handle ping messages in python client support code - teach show api ring about pairwise shared-memory segments - fix ip probing of already resolved destinations (VPP-998) We'll need this work to implement proper host-stack client isolation Change-Id: Ic23b65f75c854d0393d9a2e9d6b122a9551be769 Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Dave Wallace <dwallacelf@gmail.com> Signed-off-by: Florin Coras <fcoras@cisco.com>
2017-05-30Flowprobe: Stateful flows and IPv6, L4 recordingOle Troan1-1/+2
Change-Id: I67839281623721bf42f0a918a53356143d9dc78a Signed-off-by: Ole Troan <ot@cisco.com> Signed-off-by: Pavel Kotucek <pkotucek@cisco.com> Signed-off-by: Ole Troan <ot@cisco.com>
2017-05-05First commit SR MPLSPablo Camarillo1-1/+1
Change-Id: I961685a2a0e4c314049444c64eb6ccf877c278dd Signed-off-by: Pablo Camarillo <pcamaril@cisco.com>
2017-04-27ioam: adding missing setup api msg crc tableShwetha Bhandari1-0/+16
Change-Id: Ic95fe6179de1151796188813cc595187d4c842a0 Signed-off-by: Shwetha Bhandari <shwethab@cisco.com>
2017-03-16API:replaced all REPLY_MACRO's with api_helper_macros.hEyal Bari1-39/+2
Change-Id: I08ab1fd0abdd1db4aff11a38c9c0134b01368e11 Signed-off-by: Eyal Bari <ebari@cisco.com>
2017-03-14IOAM Coverity fixAkshayaNadahalli2-1/+13
Coverity IDs - 163911, 163910, 163909, 163908, 163905, 163904, 163896, 161957, 161955 Change-Id: Ida822fa45c6936240f61282e2280541d7e6427b3 Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
2017-03-10Fix vat_api_hookup name collisionDave Barach1-3/+3
Change-Id: I6a93fdc3f669fa1892d1e1cd5a9685700d6d2683 Signed-off-by: Dave Barach <dave@barachs.net>
2017-03-07In-band OAM active probe (VPP-471)AkshayaNadahalli11-0/+2405
Change-Id: Icf0ddf76ba1c8b588c79387284cd0349ebc6e45f Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>