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2020-11-25vlib: add elog events for vlib log entriesDave Barach1-0/+5
Pretty interesting to see how long plugins take to load. Type: improvement Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: If496eb73b2e1fd9dd714142cd5195fa7ccd93ebd
2020-11-10ip6-nd: fix memory leaksDave Barach1-0/+1
Quite a noticeable amount of memory. Recoded ra event tx and rx fns in the usual manner, which terminated the leaks. Type: fix Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I486d348456b465ad3940a280d4cf489e8dd655a5
2020-11-09vlib: support macros in initial config fileDave Barach1-15/+59
Type: improvement Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: If8a19eb6688755311a3430437331ddf13c7e28c8
2020-10-21vlib: print logs to stderr if interactive or nosyslog setDamjan Marion3-2/+14
If VPP is started in interactive mode, instead of sending logs to syslog server we print them directly to stderr. Output is colorized, but that can be turned off with unix { nocolor } Type: improvement Change-Id: I9a0f0803e4cba2849a6efa0b6a86b9614ed33ced Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-10-19misc: don't export symbols from pluginsDamjan Marion1-1/+1
Type: improvement Change-Id: I2a176fe2871d2e54b010bffc4f1f7a3616f0c455 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-10-15vlib: add cgo-friendly plugin registration supportDave Barach2-9/+128
Allows us to declare plugin registrations in a non-disgusting way: var plugin_reg = vpp.PluginRegistration{ Description: "The CGO plugin", Version: "My Version", Overrides: "sample_plugin.so", } It turns out that the specific compiler setup generates (.data section offset, length) pairs in the .vlib_plugin_r2 section: Contents of section .vlib_plugin_r2: 1ba9d0 00000000 00000000 50a81800 00000000 ........P....... 1ba9e0 0a000000 00000000 00000000 00000000 ................ 1ba9f0 00000000 00000000 00000000 00000000 ................ 1baa00 00000000 00000000 00000000 00000000 ................ 1baa10 00000000 00000000 70a81800 00000000 ........p....... 1baa20 0e000000 00000000 ........ Contents of section .data: 18a800 00a81800 00000000 00000000 00000000 ................ 18a810 00000000 00000000 00000000 00000000 ................ 18a820 00000000 00000000 00000000 00000000 ................ 18a830 00000000 00000000 00000000 00000000 ................ 18a840 00000000 00000000 14000000 00000000 ................ 18a850 4d792056 65727369 6f6e0000 00000000 My Version...... 18a860 00000000 00000000 14000000 00000000 ................ 18a870 54686520 45474f20 706c7567 696e0000 The CGO plugin.. 18a880 00000000 00000000 0c000000 00000000 ................ <etc> Unfortunately, it seems impossible to torture clang / gcc into producing anything like this. This patch fabricates a plausible vlib_plugin_registration_t from the so-called vlib_plugin_r2_t. Type: improvement Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I8c0c5a24f3b7bfea07d5181a7250b3d9685e8446
2020-10-09vlib: save signal handler data to global vblsDave Barach1-4/+4
Turns out that clang is a bit too enthusiastic about mapping static variables to registers, which makes it hard to extract (especially) the faulting VA from an optimized core file. Type: improvement Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I836e5d9695aeb4c5ee4a27f9565acf08ee4eaac0
2020-10-01vlib: fix line-mode cli memory leakBenoît Ganne1-0/+1
Type: fix Change-Id: Iaf60ec93ee9750074f52ba4dbe955355de5dbccc Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-09-17vlib: map thread stack instead of allocating them from heapDamjan Marion1-10/+9
Heap may use different page sizes so we will not be able to create stack protection page. Type: improvement Change-Id: Ibb35c9f0a151c464ee0167d17f2bd773ef6f530b Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-09-03vlib: exit 0 (nocore) on SIGHUPChristian Hopps1-2/+2
Scenarios where SIGHUP is sent would include the user closing an xterm while in interactive/nodaemon mode, or similarly when running vpp in the same mode during testing (e.g., using ssh to run VPP on a DUT). VPP should exit in these cases; however, generating a core is unwanted. Type: fix Signed-off-by: Christian Hopps <chopps@labn.net> Change-Id: Ibccfe5e676547e913c8a205ff16ab56d9abb1c82
2020-08-31vlib: extend telnet protocol guardVladimir Isaev1-1/+1
There is a number of TERMs with big length, such as 'screen.konsole-256color' (23). These TERMs can not be processed properly by vpp because maximum telnet byte stream supported is 24 and we need 6 more service bytes to send TTYPE. So I extended maximum depth guard to 32. Type: fix Signed-off-by: Vladimir Isaev <visaev@netgate.com> Change-Id: I9ca506996a97e9567d06483c5f020d6cc394329c
2020-07-16vlib: fix asan compilation with gccBenoît Ganne1-1/+1
clang tends to force alignment of all sections when compiling for address sanitizer, confusing VPP plugin infra. On the contrary, GCC does not support this attribute on sections. Selectively enable it depending upon the compiler. Type: fix Fixes: cea46522e79637f6ec37c03ec3fbeb87b160a378 Change-Id: I2dd6e52e70e6b4d89c101171cafc813e175ec472 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-07-01vlib: wake up workers if interrupts are postedBenoît Ganne1-1/+2
Type: fix Change-Id: If8dbbcb46193fd057fe8d704058609a3a8787d6c Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-06-23vlib: debug CLI macro expander, part deuxDave Barach1-11/+34
Deal with circular macro definitions instead of crashing due to stack overflow. Separate macro tables, per CLI session Add documentation to the Sphinx docs Type: improvement Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I55fc9152bd37ad0c15fa3959f38b07b63100e634
2020-06-19vlib: add recursive macro expander to debug cliDave Barach1-1/+142
All of the pieces have been sitting around for years. Added several debug CLI commands: "define <variable-name> <value>" "undefine <variable-name>" "show macro [noeval]" "echo <whatever>" Macros may refer to other macros. To defer evaluation: "define foo \$(bar)" or some such. The macro evaluator is not smart about "define foo \$(foo)" or more complicated circular definitions, so don't do that. Environment variables are available, simply use $<name-of-environment-vbl> The macro expander has a table of (overrideable) builtin names, which are evaluated by calling functions. Simple example: echo $USER define ip1 192.168.1.1/24 define ip2 192.168.2.1/24 loop create loop create set int ip address loop0 $ip1 set int ip address loop1 $ip2 show int addr show macro undefine ip1 undefine ip2 Type: feature Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I08a800647bac573d8ae3cfd75c40061d41c5f976
2020-06-16vlib: address sanitizer support for stack switch, enable clangDamjan Marion2-0/+4
Type: improvement Change-Id: I81df4b61d1f0b8c1df77c1ee9bebcb491e155b69 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-05-15vlib: restore commands for non-interactive sessionsBenoît Ganne1-8/+13
'quit' and 'show terminal' are valid for non-interactive sessions too. Type: fix Fixes: a58be82dda89d6496f92e451b42eee31f0cf47b4 Change-Id: Ib63244c7b64ad2e30c257ed19e982295f59bfffa 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
2020-05-14vlib: fix unix cli commands crash without sessionBenoît Ganne1-15/+23
If a cli command is run while there are no cli session, then cm->cli_file_pool will not be initialized and we should not try to operate on it. Type: fix Change-Id: Iaea15a23f7efd5b17fab13e6c1cbb3a9a34080e0 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-05-02vlib: add nosyslog unix optionRuslan Babayev2-3/+12
The "nosyslog" option disables syslog just like the "interactive" mode but can be used together with "nodaemon". This is useful for when VPP is running under a process supervisor like runit or daemontools that pipe the stdout/stderr to a dedicated logger service. Type: feature Change-Id: Ic4287338d6836fea9f3eabdcf960dc1f51875dd1 Signed-off-by: Ruslan Babayev <ruslan@babayev.com>
2020-04-27vlib: deprecate i2c and cjDave Barach2-363/+0
i2c follows its only use case - the original 82599 driver - into extras/deprecated. cj is/was an emergency debug tool unused in several years. Move to extras/deprecated/vlib Type: refactor Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: Ib55b65373f62630db295c562974bd8f2456c3107
2020-03-21vlib: leave SIGPROF signal with its default handlerJieqiang Wang1-0/+1
When profiling VPP with MAP (a software profile suite on Arm CPUs, see details in https://www.arm.com/products/development-tools/server-and-hpc/forge/map) on Arm servers, VPP will receive SIGPROF signal because MAP uses SIGPROF signal to drive its sampler to do profiling on VPP. However, the default action of SIGPROF signal handler in VPP such as unix_signal_handler() is process termination. To profile VPP with MAP, the SIGPROF handler should be left as default, and MAP sampler will overwrite it with its own implementation. Type: feature Change-Id: Ie14e513d35ec27a66e95067689408bad8ed1ad6b Signed-off-by: Jieqiang Wang <jieqiang.wang@arm.com>
2020-03-12vlib: fix unix cli SIGSEGV for empty line inputFan Zhang1-1/+2
When logging is enabled, an empty line input (press Enter only) will cause SIGSEGV. This patch fixes the problem by checking the command length first. Type: fix Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com> Change-Id: Ib4cbd1c7bfd6a694e289d28958875c7d2356a93e
2020-03-11vlib: unix cli - log cli commands one per linePaul Vinciguerra1-0/+2
This changeset modifies the log output so that cli commands now look like: cat /tmp/vpp-cli.log 2020/03/10 19:24:42:186: ***** Start: PID 29570 ***** /* [0] is stdin */ 2020/03/10 19:24:53:518[0]: show clock 2020/03/10 19:24:56:078[0]: show clock 2020/03/10 19:25:01:983[0]: show pci /* [1] is vppctl socket */ 2020/03/10 19:26:14:372[1]: show ver 2020/03/10 19:26:23:395[1]: show hardware-interfaces 2020/03/10 19:26:28:507[1]: q instead of: cat /tmp/vpp-cli.log 2020/03/01 00:40:12:834: ***** Start: PID 29974 ***** 2020/03/01 00:40:24:969[0]: show interface2020/03/01 00:40:31:945[0]: show clo2020/03/01 00:40:41:288[0]: show classify 2020/03/01 00:40:43:753[0]: show classify ?2020/03/01 00:40:53:392[0]: show classify tables2020/03/01 00:40:57:352[0]: quit Type: improvement Change-Id: I38d85535977296d174db7121ae340850b6476a39 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2020-02-11misc: fix coverity warningsDave Barach1-4/+6
Type: fix Ticket: VPP-1837 Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I6b1ea13fc83460bf4ee75cb9249d83dddaa64ded
2020-02-10misc: add FEATURE.yaml filesDave Barach1-0/+13
For src/vnet/classify, src/vnet/cop, src/vnet/pg, and src/vlib/unix Type: docs Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: Ib6ab734608693a1e9562a44808246950616e8d36
2020-02-06vlib: add plugin override supportDave Barach3-31/+185
Allow a plugin to override (suppress loading of) other plugins. This mechanism allows a developer to prevent specific plugins from being loaded. To do so, provide an "overrides" list in the plugin definition: VLIB_PLUGIN_REGISTER () = { <snip> .overrides = "avf_plugin.so,ioam_plugin.so,dpdk_plugin.so", }; or some such. Simply list the plugins in question as shown above. The .overrides structure member is limited to 256 octets. The named .elf section mechanism used to discover the vlib_plugin_registration_t's precludes the use of a variable-length array of strings. Use the vlib log to eliminate plugin and built-in vat plugin loader console spew. Added vlib_log_register_class_rate_limit(...) to allow procedural configuration of the log rate-limit. We *never* want to rate-limit plugin loader messages. Type: feature Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I0a9327b8cf5508482f057342783252112cb44170
2019-12-17misc: don't os_exit(1) causing core on SIGINTChristian E. Hopps1-1/+5
It's not typical for a program to core when it receives a SIGINT, so keep this from happening. Type: fix Signed-off-by: Christian E. Hopps <chopps@chopps.org> Change-Id: I2c15985a57e6ea898ff05c4001e4b30b41154eba
2019-12-17vlib: fix startup-config-process stack overflowGordonNoonan1-0/+1
Type: fix Startup config setting an i40e/ice interface up in Debug VPP consumes more than the currently available stack space. Signed-off-by: GordonNoonan <gordon.noonan@intel.com> Change-Id: I98b52c5596799017b97f802a8661b76cd1bb3245
2019-11-27vlib: add 'wait' cli commandPaul Vinciguerra1-0/+40
When running exec scripts, there can be a need to wait between statements. Type: feature Change-Id: I2a45b390697e09fc222358c9354f28e3368a06ba Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-10-28vlib: unix trivial- clean up typos in docsPaul Vinciguerra1-2/+2
seen while reading through the code. Type: style Change-Id: I7a2f021b9f06d0eebb2ea3d0cafb6955ccb14781 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-10-08vlib: fix cli process stack overflowChenmin Sun1-1/+1
Type: fix Some cli processes, including configuring an test flow on an i40e interface consume more than the currently available stack space. Signed-off-by: Chenmin Sun <chenmin.sun@intel.com> Change-Id: I3df53d251cd43286f94647384d6e50a463bad15c
2019-09-17vlib: fix cli process stack overflowAloys Augustin1-1/+1
Some cli processes, including bringing up an i40e interface with dpdk, consume more than the currently available stack space. Type: fix Fixes: VPP-1774 Signed-off-by: Aloys Augustin <aloaugus@cisco.com> Change-Id: I86ceb9e6e07523d5e0f760b5922467f09a8d4006
2019-09-16vlib: cli support ctrl-w to erase left wordHiroki Shirokura1-0/+47
Type: fix Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com> Change-Id: I3ae7dc3858d0353764d629d6a9eff2bdab5f8768
2019-08-20vlib: create unix runtime directoryOle Troan1-0/+5
Ensure the runtime directory is created at startup. Default /run/vpp Type: fix Fixes: I53d70939c8125d04a365ac51a6cbf8926dc52adf Change-Id: I6d70364ea756b86768c4dd1f6a9383238ed275c8 Signed-off-by: Ole Troan <ot@cisco.com>
2019-08-09stats: create /run/vpp before stat socket bind()YohanPipereau1-1/+1
When VPP tries to bind to stats.sock it will complain about non-existing /run/vpp directory. /run/vpp is created before cli socket operations are performed. The same should be done for stat socket. Ticket: VPP-1708 Type: fix Change-Id: I53d70939c8125d04a365ac51a6cbf8926dc52adf Signed-off-by: YohanPipereau <ypiperea@cisco.com> Signed-off-by: Ole Troan <ot@cisco.com>
2019-07-10vlib: Replace timer in CLI with an event processChris Luke1-16/+140
The CLI code, when it accepts a socket connection, ran a timer for each session that would ensure the CLI session was started should the TELNET negotiation stage fail to complete. It has since transpired that this is unsafe; the timer is capable of firing in critical sections, during a spinlock, and since we peform non-trivial things in the handler it can cause a deadlock. This was reported recently in VPP-1711 but a search of history suggests this may also be (one of) the causes in VPP-1413. This change replaces that method with an event-driven process. The process is created when the first socket connection is accepted. When new connections are created the process is sent an event to register the new session in a list. That event process has a loop that evaluates the list of oustanding sessions and if a deadline expires, their session is started if it has not been already, and then removed from the list. If we have pending sessions then the loop waits on a timer or an event; if there are no sessions it waits on events only. Type: fix Ticket: VPP-1711 Change-Id: I8c6093b7d0fc1bea0eb790032ed282a0ca169194 Signed-off-by: Chris Luke <chrisy@flirble.org> Signed-off-by: Dave Barach <dave@barachs.net>
2019-06-11vlib: avoid retrieving freed file in epollFlorin Coras1-6/+7
Type:fix Change-Id: Id7f4f6e2a2f844085f511a33aa1db3968f5d97bb Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-05-17Fix 'terminal history off' crasherChris Luke1-7/+14
- 'set terminal history off' or '... limit 0' has an incorrect terminal condition and tries to vec_delete one-too-many times causing a crash. - Changing >= to > fixes this. - In any case, a single vec_delete is more efficient, so do that instead. Change-Id: Ia0db63b6c5c7891d75b302e793b4e4985dd86ebb Signed-off-by: Chris Luke <chrisy@flirble.org>
2019-05-16init / exit function orderingDave Barach2-4/+14
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>
2019-05-14Preallocate mhash key_tmps vectorDave Barach1-1/+2
Fix os_get_nthreads() so that it starts returning the correct answer as early as possible. Change-Id: Id5292262f2c3f521b07ffbe6a9f6748dcc4dcb7d Signed-off-by: Dave Barach <dave@barachs.net>
2019-05-06gcov / test framework: sigterm not sigkillDave Barach1-0/+11
Otherwise, gcov data vanishes without a trace. Add a __gcov_flush() call to the unix signal handler, under #ifdef CLIB_GCOV. Add -DCLIB_GCOV to vpp_gcov_TAG_CFLAGS. Change-Id: I2726e671b26dfbe7fae88f46a8207bb2b5106884 Signed-off-by: Dave Barach <dave@barachs.net>
2019-05-02vlib: align stack on OS page sizeBenoît Ganne1-1/+1
Change-Id: I6d7589c967c5801a6a21a213723e2a895269e105 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2019-04-24Clean up multi-thread barrier-sync hold-down timerDave Barach1-3/+27
Main thread: don't bother with the barrier sync hold-down timer if none of the worker threads are busy. Worker threads: avoid epoll_pwait (10ms timeout) when the control-plane has been active in the last half-second. Change-Id: I82008d09968c65e2a4af0ebb7887389992e60603 Signed-off-by: Dave Barach <dave@barachs.net>
2019-04-22vlib epoll: handle file removal on EPOLLINFlorin Coras1-0/+2
Change-Id: I7a3526a8fdf17afb8cc2225bdfbd57f661680992 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-04-18vlib epoll: protect against clib file pool expansionFlorin Coras1-1/+3
Change-Id: I320e7c2fdacb3056bc448c73fec08d9e2978ee5e Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-04-18Fix memory corruption faulting [VPP-1639]Artem Belov1-3/+3
File pool may be reallocated on epoll events processing. *f* pointer shows to already freed address and corrupting memory chunk on clib_file_t property change. Change-Id: I751bddce27325452862b939c1a3eec2ccd9b71bb Signed-off-by: Artem Belov <artem.belov@xored.com>
2019-04-12Trivial: Update doxygen comments.Paul Vinciguerra1-3/+10
Change-Id: I2f7f3898b913c9b1a37b1c8c84a8df3799c49c5d Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-03-28Typos. A bunch of typos I've been collecting.Paul Vinciguerra2-5/+5
Change-Id: I53ab8d17914e6563110354e4052109ac02bf8f3b Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-03-21Ignore SIGTERM during the vpp boot sequenceDave Barach1-1/+6
Call setjmp and mark the setjmp context valid just prior to entering the vpp main loop. Change-Id: I26d5cd6a624cb2a497d81eb85a62365621b3b469 Signed-off-by: Dave Barach <dave@barachs.net>