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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>
2020-05-15misc: removed executable bits from source filesRay Kinsella1-0/+0
Identified and removed executable bit from source files in the tree. find . -perm 755 -name *.[ch] -exec chmod a-x {} \; Type: improvement Signed-off-by: Ray Kinsella <mdr@ashroe.eu> Change-Id: I00710d59fcc46ce5be5233109af4c8077daff74b
2020-05-06docs: clean up make docs jobPaul Vinciguerra3-8/+8
Type: docs Change-Id: I9b5e5137eb4c1e89f6e8d7a278cd11a0fd496471 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2020-05-04misc: binary api fuzz test fixesDave Barach1-5/+5
Add a hook to src/vlibapi/api_shared.c to fuzz (screw up) binary API messages, e.g. by xoring random data into them before processing. We specifically exempt client connection messages, and inband debug CLI messages. We step over msg_id, client index, client context, and sw_if_index. Otherwise, "make test" vectors fail too rapidly to learn anything. The goal is to reduce the number of crashes caused to zero. We're fairly close with this patch. Add vl_msg_api_max_length(void *mp), which returns the maximum plausible length for a binary API message. Use it to hardern vl_api_from_api_to_new_vec(...) which takes an additional argument - message pointer - so it can verify that astr->length is sane. If it's not sane, return a u8 *vector of the form "insane astr->length nnnn\0". Verify array lengths in vl_api_dhcp6_send_client_message_t_handler(...) and vl_api_dhcp6_pd_send_client_message_t_handler(...). Add a fairly effective binary API fuzz hook to the unittest plugin, and modify the "make test" framework.py to pass "api-fuzz { on|off }" to enable API fuzzing: "make API_FUZZ=on TEST=xxx test-debug" or similar Type: improvement Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I0157267652a163c01553d5267620f719cc6c3bde
2020-04-27ioam: do not reuse existing vnet symbolBenoît Ganne1-2/+2
vxlan_gpe_init() is already defined in libvnet. When loading ioam plugin we end up having 2 different objects using the same symbol. ASan in GCC-10 started to enforce the One-Definition-Rule and it seems like good hygiene anyway. Type: fix Change-Id: I2ea9af1821bca6482a290742e9a109fc25692f37 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-04-08misc: check return values from vlib_buffer_copy(...)Dave Barach1-3/+5
vlib_buffer_copy(...) returns NULL if the system is temporarily out of buffers. This is NOT correct. Please don't be this person: c0 = vlib_buffer_copy (vm, p0); ci0 = vlib_get_buffer_index (vm, c0); Type: fix Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: Ic25ef58965871ea5d2b40904df9506803f69e47e
2020-02-26api: improve api string safetyJakub Grajciar2-4/+4
- Remove vl_api_from_api_string to prevent use of not nul-terminated strings. - Rename vl_api_from_api_to_vec -> vl_api_from_api_to_new_vec to imply a new vector is created. NOT nul terminated. - Add vl_api_from_api_to_new_c_string. Returns nul terminated string in a new vector. - Add vl_api_c_string_to_api_string. Convert nul terminated string to vl_api_string_t - Add vl_api_vec_to_api_string. Convert NON nul terminated vector to vl_api_string_t Type: fix Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com> Change-Id: Iadd59b612c0d960a34ad0dd07a9d17f56435c6ea Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
2019-12-10ioam: use explicit api typesOle Troan18-871/+154
Also remove API boilerplate. Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: I62e795f5af3843af7912707ade4ba178ff326942
2019-10-09ioam: remove api boilerplateOle Troan28-974/+76
Note: The VAT _test.c plugins need some more adjustments. Type: refactor Change-Id: Ifa150683d7d68db7950f66ef85eea73c8281ba14 Signed-off-by: Ole Troan <ot@cisco.com>
2019-09-20classify: remove includes from classifier header fileDamjan Marion5-0/+5
Type: refactor Change-Id: I6f0af1c3078edce1c1b29a8b99c4a232d7084d33 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-07-31vppinfra: refactor test_and_set spinlocks to use clib_spinlock_tjaszha034-48/+33
Spinlock performance improved when implemented with compare_and_exchange instead of test_and_set. All instances of test_and_set locks were refactored to use clib_spinlock_t when possible. Some locks e.g. ssvm synchronize between processes rather than threads, so they cannot directly use clib_spinlock_t. Type: refactor Change-Id: Ia16b5d4cd49209b2b57b8df6c94615c28b11bb60 Signed-off-by: Jason Zhang <jason.zhang2@arm.com> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> Reviewed-by: Lijian Zhang <Lijian.Zhang@arm.com>
2019-07-09vat: unload unused vat pluginsDave Barach1-17/+19
If the corresponding vpp plugin is absent, return a non-zero clib_error_t * from vat_plugin_register ("xxx plugin not loaded"). The vat plugin calls dlclose on the vat plugin, and it disappears. Depending on the plugin configuration, this can reduce the vpp virtual size by several gigabytes. Added a VAT_PLUGIN(<plugin-name>) macro to vat_helper_macros, clean up boilerplate vat_plugin_register() implementations. Fixed a number of non-standard vat_plugin_register methods. Type: refactor Change-Id: Iac908e5af7d5497c78d6aa9c3c51cdae08374045 Signed-off-by: Dave Barach <dave@barachs.net>
2019-06-07build: add -Wall and -fno-common, fix reported issuesBenoît Ganne2-2/+2
Type: refactor Change-Id: I8489ccd54411c2aa9355439c5641dc31012c64a2 Signed-off-by: Benoît Ganne <bganne@cisco.com> Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-06-04features will register udp ports once configuredJakub Grajciar1-3/+5
plugins: - ipfixcollector vnet: - geneve - vxlan_gpe - vxlan Change-Id: I69a8b4017ee6990f2b4874fe3e94c4520bde7101 Signed-off-by: Jakub Grajciar <jgrajcia@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 Barach7-75/+65
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>
2019-05-03plugins: clean up plugin descriptionsDave Wallace1-1/+1
- Make plugin descriptions more consistent so the output of "show plugin" can be used in the wiki. Change-Id: I4c6feb11e7dcc5a4cf0848eed37f1d3b035c7dda Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
2019-04-10API: Fix shared memory only action handlers.Ole Troan2-109/+20
Some API action handlers called vl_msg_ai_send_shmem() directly. That breaks Unix domain socket API transport. A couple (bond / vhost) also tried to send a sw_interface_event directly, but did not send the message to all that had registred interest. That scheme never worked correctly. Refactored and improved the interface event code. Change-Id: Idb90edfd8703c6ae593b36b4eeb4d3ed7da5c808 Signed-off-by: Ole Troan <ot@cisco.com>
2019-03-01ioam: migrate old MULTIARCH macros to VLIB_NODE_FNFilip Tehlar5-19/+27
Change-Id: Icb919a053b35ef62f958c60c725d3aae4c32358f Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
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 Barach6-24/+24
Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1 Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-23c11 safe string handling supportDave Barach15-29/+30
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-19vppinfra: add atomic macros for __sync builtinsSirshak Das4-26/+28
This is first part of addition of atomic macros with only macros for __sync builtins. - Based on earlier patch by Damjan (https://gerrit.fd.io/r/#/c/10729/) Additionally - clib_atomic_release macro added and used in the absence of any memory barrier. - clib_atomic_bool_cmp_and_swap added Change-Id: Ie4e48c1e184a652018d1d0d87c4be80ddd180a3b Original-patch-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Sirshak Das <sirshak.das@arm.com> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> Reviewed-by: Ola Liljedahl <ola.liljedahl@arm.com> Reviewed-by: Steve Capper <steve.capper@arm.com>
2018-08-27cmake: Fix plugins .h includesMohsin Kazmi1-0/+31
Change-Id: I90600d000afb02e8969f3c01bcf9e4b5c10a7d39 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2018-08-27CMake: fix install lib and iOMA missing symbolNeale Ranns1-0/+1
Change-Id: I929a5c3779cb40c9fde64e88ebe5183a95faf6ff Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-08-25cmake: handle api_test_plugins in add_vpp_plugin macroDamjan Marion1-19/+2
Change-Id: I76a1711af0a920cce66e6dfb07d019ba505d55b7 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-08-25ioam: one api test plugin instead of fiveDamjan Marion7-6/+54
Change-Id: I715dade7c81f2ba6a0a5297123f588563833c3fb Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-08-25cmake: improve add_vpp_plugin macroDamjan Marion1-13/+16
Change-Id: Iffd5c45ab242a919592a1f686f7f880936b68a1a Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-08-17CMake as an alternative to autotools (experimental)Damjan Marion1-0/+99
Change-Id: Ibc59323e849810531dd0963e85493efad3b86857 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-05-13Improve ipfix template packet rewrite constructionDave Barach3-4/+11
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 Troan4-4/+4
Change-Id: I9363cf54b73f7cfd8622af6f1cb250438ea0d3b6 Signed-off-by: Ole Troan <ot@cisco.com>
2018-05-04Harmonize vec/pool_get_aligned object sizes and alignment requestsDave Barach4-2/+12
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>
2018-04-25Fix some build warnings about "Old Style VLA"Juraj Sloboda1-3/+3
Change-Id: I69fee1dcf07a4d2eed69a59f0a36e63e3741ed4e Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
2018-04-12Fixes for 'make UNATTENDED=yes CC=clang CXX=clang verify'Neale Ranns2-6/+6
Change-Id: I994649761fe2e66e12ae0e49a84fb1d0a966ddfb Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-01-23VPPAPIGEN: vppapigen replacement in Python PLY.Ole Troan7-7/+7
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>
2018-01-09api: refactor vlibmemoryFlorin Coras2-4/+4
- separate client/server code for both memory and socket apis - separate memory api code from generic vlib api code - move unix_shared_memory_fifo to svm and rename to svm_fifo_t - overall declutter Change-Id: I90cdd98ff74d0787d58825b914b0f1eafcfa4dc2 Signed-off-by: Florin Coras <fcoras@cisco.com>
2017-12-21VPP-1109 Fix loop for some CLI (code review)Swarup Nayak1-0/+3
Change-Id: I518387ab479bee4778d45a33c95f7b0f72aa1b72 Signed-off-by: Swarup Nayak <swarupnpvt@gmail.com>
2017-10-24Add extern to *_main global variable declarations in header files.Dave Wallace2-1/+3
- Global variables declared in header files without the use of the 'extern' keword will result in multiple instances of the variable to be created by the compiler -- one for each different source file in which the the header file is included. This results in wasted memory allocated in the BSS segments as well as potentially introducing bugs in the application. Change-Id: I6ef1790b60a0bd9dd3994f8510723decf258b0cc Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
2017-10-09vppapigen: support per-file (major,minor,patch) version stampsDave Barach7-0/+10
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 Barach14-14/+8
- 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>
2017-06-06Rework vxlan-gpe to support FIB 2.0 and bypass modeHongjun Ni1-1/+1
Change-Id: I0324f945bdb4dd3b19151be6f3ce24a47a000104 Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>
2017-05-30Flowprobe: Stateful flows and IPv6, L4 recordingOle Troan2-2/+4
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>
2017-05-24IPv6 Performance bugsNeale Ranns2-2/+1
- inline the FIB lookup function; this requires access to the bihash, so for files that use more than one type this casues problems. those files that include ip6_fib.h unnecessarily have been updated - better use of the feature arcs. ip6-lookup and interface-output are now sentinels (end-node-index in the cm speak) rather than enabled features. Change-Id: I9d1375fee63f7dbb2d327da6124d8e60b63367ec Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-05-17ioam: configuration for SRv6 localsid (VPP-693)shwethab4-23/+54
This add debug cli to accept SRv6 localsid that will be used to attract the return traffic for M-Anycast flows. Change-Id: I8f8dd115c36498141ae4cb143c6584141950b1d3 Signed-off-by: shwethab <shwetha.bhandari@gmail.com> (cherry picked from commit 00c14a94c34fac89e6e589c4a7aad20d8dd183dc)
2017-05-05First commit SR MPLSPablo Camarillo3-3/+3
Change-Id: I961685a2a0e4c314049444c64eb6ccf877c278dd Signed-off-by: Pablo Camarillo <pcamaril@cisco.com>
2017-04-27ioam: adding missing setup api msg crc tableShwetha Bhandari4-0/+66
Change-Id: Ic95fe6179de1151796188813cc595187d4c842a0 Signed-off-by: Shwetha Bhandari <shwethab@cisco.com>
2017-04-25"autoreply" flag: autogenerate standard xxx_reply_t messagesDave Barach6-158/+14
Change-Id: I72298aaae7d172082ece3a8edea4217c11b28d79 Signed-off-by: Dave Barach <dave@barachs.net>
2017-04-13Remove unsed parameter from fib_table_entry_special_add() (only used in FIB ↵Neale Ranns1-3/+1
tests). The DPO was incorrectly initialised with FIB_PROTO_MAX Change-Id: I962df9e162e4dfb6837a5ce79ea795d5ff2d7315 Signed-off-by: Neale Ranns <nranns@cisco.com>