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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>
2017-11-13Instead of a min term size, use a default (VPP-1061)Chris Luke1-16/+21
- In the bug report, Docker was sometimes giving shells a 0,0 terminal size. The minimum-term-size logic meant that VPP assumed the terminal had 1 row. The pager functioned, but of course overwrote the one line with its own prompt. - Instead of a minimum size, always use a default size when the either terminal dimension is 0. Change-Id: Iee5a465f0e4cbb618ef2222b40a52994aefa54bf Signed-off-by: Chris Luke <chrisy@flirble.org>
2017-10-20Thread_index for thread0 in vlib_global_main not initialisedKeith Burns (alagalah)1-0/+1
Change-Id: Ie49ee865b197e8fe7bba170c115a4ccbf1013e5f Signed-off-by: Keith Burns (alagalah) <alagalah@gmail.com>
2017-10-14VPP-1029: Don't call clib_longjmp(...) directly from the SIGTERM handlerDave Barach1-4/+3
It's way too easy to imagine leaving a mutex or a spin-lock held in the /vpe-api shared-memory segment, or elsewhere. Set a volatile variable and check it in a safe place... Change-Id: I9d91c38cffeb921143c272162d055c9c24a6c312 Signed-off-by: Dave Barach <dave@barachs.net>
2017-10-03Repair vlib API socket serverDave Barach2-2/+2
- 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>
2017-09-22Fix vpp "unix interactive" when running under emacs + gdbDave Barach1-3/+8
In this specific corner-case setup, ioctl (0, TIOCGWINSZ) returns window height = 0 and width = 0. Rather than declaring the terminal to be non-interactive, set the window size parameters to 80 x 24. Change-Id: If66f5f0883f1940518ec1c6e26228c9bb6f32852 Signed-off-by: Dave Barach <dave@barachs.net>
2017-09-21vppctl,cli: Improve non-interactive vppctl (VPP-944)Chris Luke1-51/+308
Short version: Make vppctl behave as expected when run from scripts, or without a controlling terminal, and especially when using it with VPP commands on its command line ("non-interactively"). In particular, prevent the welcome banner and VPP CLI prompt from being sent by VPP when being used in these ways. vppctl ------ - Improve vppctl's detection of non-interactive sessions. - Pass non-interactiveness in the terminal type telnet option as a value distinct from "dumb" (which means non-ANSI capable.) - Make tty setup handling more robust. - Only send non-interactive command once we've sent the terminal type, to ensure correct event sequence; we need the VPP cli session to be in line-by-line mode. - Ignore stdin when it looks something like /dev/null. - Skip NUL bytes received from VPP. VPP CLI ------- - Detect "non-interactive" terminal types and set session parameters accordingly. - Add an "interactive" flag that controls whether the welcome banner and CLI prompt are sent. - Detect if telnet options processing switched us into line mode and act accordingly for the rest of the current input buffer. This was causing the command string to be echoed by the CLI editor code. - For non-interactive sessions, send a NUL byte after the input buffer has been processed. This is because vppctl depends on seeing traffic before it will try to close the session; a command with no output would cause it to hang. NUL bytes are ignored by all decent terminals, but we have vppctl strip them out anyway. - Prevent certain commands from running in non-interactive sessions since they manipulate interactive-related features. - For interactive sessions, quench the prompt that prints on VPP shutdown. - Detect and handle socket errors in the CLI; sessions were leaking. - Pevent SIGPIPE from ever being raised; handle EPIPE instead. We don't need VPP to die just because a socket closed just before we try to write to it! - Add a command to dump a list of current CLI sessions; mostly this was to detect session leakage, but it may have some general utility. Change-Id: Ia147da013317180882c1d967b18eefb8519a55fb Signed-off-by: Chris Luke <chrisy@flirble.org>
2017-09-20CLI: fix segfault when browsing an empty historyYoann Desmouceaux1-3/+1
When one starts VPP, types a command, presses up rather than enter, then types a new command, unix_cli_line_process_one() segfaults. This is due to cf->cursor not being reset upon pressing up if the history is empty. Change-Id: Ie503f20a9cb551e735abb8b0f4feb8c0006d2b61 Signed-off-by: Yoann Desmouceaux <ydesmouc@cisco.com>
2017-09-18Fixes for issues Coverity has reported (VPP-972)Chris Luke1-0/+30
177117: fstat() returns -1 on error; the code is checking for any positive value instead 175142: final return could never be reached; simple refactoring 175235,175236: Warning suppressed with an explicit cast to (void) 174817: Final return couldn't be reached; is is_in_order is 0 then 'rv' is already returned above 172095,172093: If is_is_set does not get set to 1, then return 0 has already been invoked 174405: Re-kill this (nothing sets rv) 171136: Looks like a cmd line flag to set test_bytes was missing; added it, and refactored the argc/argv processing to avoid two other potential segv's 176813: Add range checking for term width/height. First stab at a reasonable range is 1-512 for both. 175350: Fix implicit casting in shift operation 174272: Not a c+p error; try using a coverity annotation to ignore it 174273,175320: Annotated FORWARD_NULL Change-Id: I58d0f860fc2209f59f8d1b6b344d631b8d429ace Signed-off-by: Chris Luke <chrisy@flirble.org>
2017-09-14clib_socket: add sendmsg / recvmsg with ancillary data supportDamjan Marion1-2/+2
Change-Id: Ie18580e05ec12291e7026f21ad874e088a712c8e Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-09-09move unix_file_* code to vppinfraDamjan Marion6-154/+92
This will allow us to use this code in client libraries without vlib. Change-Id: I8557b752496841ba588aa36b6082cbe2cd1867fe Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-09-08vlib: move linux-specific code to vlib/linuxDamjan Marion3-675/+0
Change-Id: Id79d2c2be7a98e15416a537c890a8f2dd6d4464d Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-09-08Fixes for issues reported by Coverity (VPP-972)Chris Luke1-4/+4
Change-Id: I25238debb7081b4467aec4620dfdef33fbef3295 Signed-off-by: Chris Luke <chrisy@flirble.org>
2017-09-07vlib physmem reworkDamjan Marion4-385/+389
This patch adds supprot support for multiple numa-aware physmem regions. Change-Id: I5c69a6f4da33c8ee21bdb8604d52fd2886f2327e Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-09-05Add pidfile cmdline optionPierre Pfister3-9/+98
Change-Id: Ibaa61b624eb6683b1be6901a7b29f5f73aad27b2 Signed-off-by: Pierre Pfister <ppfister@cisco.com>
2017-08-31Set runtime_path properly when running non-rootDamjan Marion1-2/+11
non-root users should use /run/user/$PID/... Change-Id: I1ca136df7a339eff193ed9c9a396d6965b192d0e Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-08-24Make VPP runtime directory configurableDamjan Marion4-20/+63
New startup config command: unix { runtime-dir /run/vpp } Also, adds recursive mkdir funtion for use in deifferent places like cli-config socket path and dpdk hugepage directory path. Change-Id: I1446ceab9c220c25804e73a743a3ebb383450124 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-07-27Thread safe internal buffer managerDamjan Marion1-1/+2
Change-Id: I45845b952aa42a854e1c2c396b85f905de987020 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-07-10vlib: store buffer memory information in the buffer_mainDamjan Marion1-9/+0
Currently, buffer index is calculated as a offset to the physmem region shifted by log2_cacheline size. When DPDK is used we "hack" physmem data with information taken from dpdk mempool. This makes physmem code not usable with DPDK. This change makes buffer memory start and size independent of physmem basically allowing physmem to be used when DPDK plugin is loaded. Change-Id: Ieb399d398f147583b9baab467152a352d58c9c31 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-07-06unix: mkdir VPP_RUN_DIR before opening a socket in itChris Luke3-0/+30
Change https://gerrit.fd.io/r/#/c/7230/ added a Unix domain CLI socket in the default startup.conf; however unless you had previously run VPP with the DPDK plugin enabled the directory that it is created in. /run/vpp, would not exist and startup would fail. This directory is typically hosted in a tmpfs ramdisk and is thus ephemeral. This patch adds a function that attempts to mkdir VPP_RUN_DIR and uses it in both the DPDK plugin and the CLI code if the CLI socket is to be created in that directory. Change-Id: Ibbf925819099dce2b5eb0fa238b9edca1036d6fd Signed-off-by: Chris Luke <chrisy@flirble.org>
2017-06-28switch vlib process model to tw_timer_template timer implDave Barach1-36/+25
Change-Id: I36bb47faea55a6fea7af7ee58d87d8f6dd28f93d Signed-off-by: Dave Barach <dave@barachs.net>
2017-06-21Add option to create clib_socket with group write permissionsDamjan Marion1-1/+4
Also allow group write as default for CLI socket connections. Change-Id: I6af1f277f70581358cd9241bf0f5cb0752fe250f Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-06-21Add knob to specify effective group id (gid) for VPP processDamjan Marion1-0/+7
Change-Id: Icf9bd4abda058fb380f1a25d5fe3917ffb38b1c4 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-06-06vlib: add screen-256color CLI terminal typeDamjan Marion1-0/+1
Change-Id: Ia78e69e5e8ed18020314aef321b94ac37037799b Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-06-05vlib: add unix_file_del_by_index functionDamjan Marion1-0/+8
Change-Id: I9eca5f9d1c1ae62d5ba5fb36f2f97434dbaf334e Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-05-23Add TAB-based auto-completion to the CLIYoann Desmouceaux1-0/+153
Hitting tab: - in the middle of a uniquely defined subcommand will expand the subcommand - in the middle of a non-uniquely defined (or empty) subcommand will display all possible subcommands, and possibly expand to the lowest common prefix Change-Id: Ib858eefdb0353cd2c3aad472799d15cd537455a0 Signed-off-by: Yoann Desmouceaux <ydesmouc@cisco.com>