summaryrefslogtreecommitdiffstats
path: root/src/vlib/unix
AgeCommit message (Collapse)AuthorFilesLines
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>
2019-03-01Save signum and faulting address in static variablesDave Barach1-0/+6
Comes in handy when looking at core files from optimized images. Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I45c8400d15614d5a04a3dcfb9b7daccab47ab446
2019-02-09buffers: fix typoDamjan Marion1-3/+3
Change-Id: I4e836244409c98739a13092ee252542a2c5fe259 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-02-06buffers: make buffer data size configurable from startup configDamjan Marion1-3/+5
Example: buffers { default data-size 1536 } Change-Id: I5b4436850ca18025c9fdcfc7ed648c2c2732d660 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-01-28Less intrusive way to capture numa_node and cpu_id changesDamjan Marion2-3/+10
Change-Id: I3a33fb81f31ed473811e9e7a6197b81135913865 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-01-27Fix issue with cpu_id and numa_code captured too earlyDamjan Marion1-2/+1
Change-Id: I79b213b34c6071d14acf1922f89037a4a5a36c45 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-01-20buffers: remove VLIB_BUFFER_DEFAULT_FREE_LIST macro and fl->n_data_bytesDamjan Marion1-5/+3
Change-Id: I0ba5175be077c40556f2a3ce629c5bbcd71e0a81 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-01-20Store numa-noda and cpu-index in vlib_main_tDamjan Marion1-0/+2
Change-Id: If88ccd965122b9318a39a8d71b53334cd1fd81e4 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-10-26cj: cj dump crashSteven1-1/+1
Thread 1 "vpp_main" received signal SIGSEGV, Segmentation fault. 0x00007ffff670da53 in cj_dump_one_record (r=0x7ffff50f0fec) at /home/sluong/vpp3/vpp/src/vlib/unix/cj.c:138 138 (long long unsigned int) r->data[1]); (gdb) p *cjm $1 = {tail = 58645908, records = 0x7fffb64646ec, num_records = 512, enable = 1, vlib_main = 0x7ffff6953240 <vlib_global_main>} (gdb) p /x cjm $2 = 0x7ffff6953880 (gdb) p /x *cjm $3 = {tail = 0x37edd94, records = 0x7fffb64646ec, num_records = 0x200, enable = 0x1, vlib_main = 0x7ffff6953240} (gdb) cjm->tail is a 64 bit counter, not the total number of records. Dumping from 0 to cjm->tail can be a very large number of records which go beyond the limit. I believe we meant to dump from 0 to index. index has been set by this statement index = (cjm->tail + 1) & (cjm->num_records - 1); Change-Id: Ie1a8ba757598de9757accc1488577c15aa49726b Signed-off-by: Steven <sluong@cisco.com>
2018-10-23Numa-aware, growable physical memory allocator (pmalloc)Damjan Marion2-3/+0
Change-Id: Ic4c46bc733afae8bf0d8146623ed15633928de30 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-10-23c11 safe string handling supportDave Barach4-13/+13
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-19vppinfra: add atomic macros for __sync builtinsSirshak Das1-1/+1
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>
2018-09-09vlib: crash in linux_epoll_input_inline for accessing free file index [VPP-1412]Steven1-2/+31
Under rare scenario, epoll may still post an event to VPP although the file descriptor is already deleted via epoll_ctl (EPOLL_CTL_DEL) and the file descriptor is close. VPP tries to access the free file index entry and crash. The fix is to throw away the events which the file descriptor is already deleted. Change-Id: Ieca3a1873aecb28630c3abc42c40341f27c2faa7 Signed-off-by: Steven <sluong@cisco.com> (cherry picked from commit aec7297ba012e1fe4bbf85cdaec8e810aa476cea)
2018-09-07Silence warning over ignored return value (CID 187932)Chris Luke1-2/+2
- We deliberately ignore the return value. Change-Id: If467911b019e7336cf9dc6d4c95c2cd53a5af33f Signed-off-by: Chris Luke <chrisy@flirble.org>
2018-09-06Fix Telnet option processing issueChris Luke1-1/+8
- A check for the length of the buffer should have used the provided 'len' variable, not 'vec_len' since the buffer pointer may be within a vector, but not the start of one. 'vec_len' reports 0 in that case, causing premature exit from the options processing loop and a wait for further input before it checks the next option. - Also add TCP_NODELAY to CLI sockets to disable Nagle on TCP connections for a possible improvement in interactive response. Change-Id: Ie1f53c003ca7d66bed51f437d298183215bad38c Signed-off-by: Chris Luke <chrisy@flirble.org>
2018-07-18Add config option to use dlmalloc instead of mheapDave Barach1-0/+2
Configure w/ --enable-dlmalloc, see .../build-data/platforms/vpp.mk src/vppinfra/dlmalloc.[ch] are slightly modified versions of the well-known Doug Lea malloc. Main advantage: dlmalloc mspaces have no inherent size limit. Change-Id: I19b3f43f3c65bcfb82c1a265a97922d01912446e Signed-off-by: Dave Barach <dave@barachs.net>
2018-07-12Fix debug CLI node recycling bugsDave Barach1-5/+26
When creating a new - as opposed to recycled - debug CLI process node, perform a proper barrier sync and node runtime update. Otherwise, the graph replicas diverge for some period of time. That's not immediately fatal, but it's not a good idea, either. When renaming a debug cli process node, fix all of the name-vector replicas before freeing the [one-and-only] name vector. This fixes the so-called stats segment node runtime scraper crash, which tripped over a replicated dangling reference to the recently-freed debug CLI node name. Change-Id: Ieffabd9f003139e534b9d79b88370439907930e5 Signed-off-by: Dave Barach <dbarach@cisco.com>
2018-06-30cli: Validate cli_file_index on quit commandSteve Shin1-0/+4
VPP crash happens with 'vppctl quit quit' command. The 2nd quit command tries to access the file index which is already freed by the first quit. This can be avoided to validate cli_file_index. Change-Id: I880514c93523db2a727d7510c97950582cd6a6c8 Signed-off-by: Steve Shin <jonshin@cisco.com>
2018-06-26add backtrace in unix_signal_handlerKingwel Xie1-9/+49
crash stack backtrace will be directed to syslog 1. make use of glic backtrace in execinfo.h. the old clib_backtrace is removed 2. install SIGABRT in signal handler, but have to remove it when backtrace is done. reason is to capture stack trace caused by SIGABRT. vPP ASSERT always call os_exit then abort(). we definitely want to know the trace of this situation. It is a little tricky to avoid SIGABRT infinite loop 3. always load symbols by calling clib_elf_main_init () in main(). Otherwise, PC addresses instead of symbols will be displayed. Change-Id: I150e15b94a4620b2ea4f08c73dc3e6ad1856de1e Signed-off-by: Kingwel Xie <kingwel.xie@ericsson.com>
2018-06-21configurable per-dispatch-cycle sleepDave Barach3-2/+25
Workaround for lack of driver interrupt support. Also quite handy for home gateway, laptop/vagrant, other use-cases not requiring maximum vectors/second for proper operation. Change-Id: Ifc4b98112450664beef67b89ab8a6940a3bf24b5 Signed-off-by: Dave Barach <dave@barachs.net>
2018-06-10cli: Disable XON/XOFF in the ttyChris Luke1-0/+4
- CLI history forward-search is bound to ^S which is common, but that is also the tty's default control byte to pause output. So we disable XON/XOFF in the tty so that we can use ^S. Change-Id: I61717c77a11733d64eed7f8119677e7cd2e20029 Signed-off-by: Chris Luke <chrisy@flirble.org>
2018-06-10cli: Fix reverse-line-wrap in terminals (VPP-1295)Chris Luke1-86/+195
- Terminals do not reverse-line-wrap when the cursor is at the left edge and \b tries to make it go left. - Instead, we have to track the cursor position if we need to emit \b's and if we are at the left edge emit an ANSI sequence to relocate the cursor. Previously we usually simply calculated the new cursor position after a bunch of output had completed. - Further trickiness is required since most xterm-like terminals also defer moving the cursor to the next line when at the right edge[1], and then if they receive a \b move the cursor back one character too many. - This requires intricate reworking of everywhere that \b is emitted by the CLI code during command line editing. [1] Bash counters this issue by tracking the cursor position as output is generated and forcing the cursor to the next line (by emitting a space followed by \r) if it gets to this phantom cursor position); here we effectively do that but only if the user tries to go left when in this state. Change-Id: I7c1d7c0e24c53111a5810cebb504ccfdac743086 Signed-off-by: Chris Luke <chrisy@flirble.org>
2018-06-10cli: Fix off-by-one in the pagerChris Luke1-2/+2
- The last line in the pager buffer was sometimes missed when using space/pg-dn; simple off-by-one error. Change-Id: Id4e5f7cf0e5db4f719f87b9069d75427bc66d3f7 Signed-off-by: Chris Luke <chrisy@flirble.org>
2018-05-04Harmonize vec/pool_get_aligned object sizes and alignment requestsDave Barach1-0/+1
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>
2018-04-12Fixes for 'make UNATTENDED=yes CC=clang CXX=clang verify'Neale Ranns1-1/+2
Change-Id: I994649761fe2e66e12ae0e49a84fb1d0a966ddfb Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-04-09plugins: unload plugin if early init failsDamjan Marion1-2/+4
Change-Id: I32f68e2ee8f5d32962acdefb0193583f71d342b3 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-03-27vlib: gcc-7 -O3 uninitialized valuesDamjan Marion1-5/+5
Change-Id: I59b4142daab439d60a1ebd48b2c1366df0160288 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-03-26plugin: Add plugin 'default' disable/enableMohsin Kazmi2-0/+11
How to use: plugins { plugin default {disable} plugin dpdk_plugin.so {enable} plugin acl_plugin.so {enable} } It also preserves the old behavior. Change-Id: I9901c56d82ec4410e69c917992b78052aa6a99e0 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2018-03-16cli: make q work againFlorin Coras1-0/+8
After the addition of "qos" cli, "quit" command is not the only match for "q". Therefore, add a separate "q" cli to avoid ambiguity. Change-Id: I84f6ddce14ef7d5fa7089537cb62adfecea0e501 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-03-13Rationalize plugin symbol error reportingDave Barach1-1/+1
Change-Id: I64f2b2007f30fc1c6bd2990ba0d7ccbcd43cdb38 Signed-off-by: Dave Barach <dave@barachs.net>
2018-03-05physmem: keep only one physmem_mainDamjan Marion1-0/+1
We don't need per vlib_main physmem_main, so keep it separatelly instead of trying to keep them in sync. Change-Id: I0fbeecf4d9672d31af7a43c640a7d8f05dd6e46f Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-02-06vlib: epoll on worker threadsDamjan Marion2-34/+152
This patch teaches worer threads to sleep and to be waken up by kernel if there is activity on file desctiptors assigned to that thread. It also adds counters to epoll file descriptors and new debug cli 'show unix file'. Change-Id: Iaf67869f4aa88ff5b0a08982e1c08474013107c4 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-01-30VPP-899: Run VPP under SELinuxBilly McFall1-4/+20
Add an SELinux profile such that VPP can run under SELinux on RPM based platforms. The SELinux Policy is currently only implemented for RPM packages, specifically, Fedora, CentOS and RHEL. Doxygen User Documentation has been included (selinux_doc.md). Once some discussion on file locations has completed (see vpp-devlist), updates to the Debug CLI documentation will also need to be updated. Additional changes: Patch Set 2: - Rework selinux_doc.md such that each line is only 80 characters instead of each sentence on a line. Made additonal minor chnages to the text. - Update vHost Debug CLI documentation to reflex new socket location. Cleaned up some text from when I originally wrote it, to better reflex proper use. - Update exec Debug CLI documentation to be more inline with suggested helptext, added text regarding recommended script file location. - For Debian builds, create the /var/log/vpp/ directory. I don't use Debian very much, so please pay extra attention to build-data/platforms.mk and build-root/deb/debian/.gitignore. - Per discussion on VPP call, changed the default log location to /var/log/vpp/vpp.log. - Changed the socket location for vHost in AutoConfig to /var/run/vpp/. Patch Set 3: - Update selinux_doc.md based on comments. Change-Id: I400520dc33f1ca51012d09ef8fe5a7b7b96c631e Signed-off-by: Billy McFall <bmcfall@redhat.com>
2017-12-10VPP-1077 Add meaningful error info, when executing command with ↵Swarup Nayak1-7/+19
enable/disable option Change-Id: I47dd6f9637f0214971e3191852d84aa92d64b8c0 Signed-off-by: Swarup Nayak <swarupnpvt@gmail.com>
2017-12-06fix bug in pagerNeale Ranns1-2/+3
the format statement can return NULL before the pager has pages. Change-Id: Ibabfd107e64fc9ab0eb142c28c155506f0d25828 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-11-29Configure vat-plugin-path and vat-plugin-name-filterDave Barach2-1/+24
To facilitate in-tree plugin API testing, via the "binary-api..." debug CLI command. Change-Id: If7ee88a6a0dbc8e8f4555cb41e259db24e378a64 Signed-off-by: Dave Barach <dave@barachs.net>
2017-11-18Call a plugin init function by nameDave Barach1-0/+26
Use this macro to arrange init function ordering between friend plugins. Fails in the usual manner if the plugin doesn't exist, or if the init function symbol is AWOL. clib_error_t * thisplug_init (vlib_main_t *vm) { clib_error_t *error = 0; if ((error = vlib_plugin_init_function ("otherplug.so", otherplug_init))) return error; <etc> return error; } VLIB_INIT_FUNCTION(thisplug_init); Change-Id: Ideecaf46bc0b1546e85096e54be8ddef87946565 Signed-off-by: Dave Barach <dave@barachs.net>