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- '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>
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Change-Id: I53ab8d17914e6563110354e4052109ac02bf8f3b
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
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Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab
Signed-off-by: Dave Barach <dave@barachs.net>
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- We deliberately ignore the return value.
Change-Id: If467911b019e7336cf9dc6d4c95c2cd53a5af33f
Signed-off-by: Chris Luke <chrisy@flirble.org>
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- 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>
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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>
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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>
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- 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>
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- 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>
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- 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>
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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>
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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>
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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>
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the format statement can return NULL before the pager has pages.
Change-Id: Ibabfd107e64fc9ab0eb142c28c155506f0d25828
Signed-off-by: Neale Ranns <nranns@cisco.com>
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- 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>
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- 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>
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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>
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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>
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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>
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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>
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Change-Id: Ie18580e05ec12291e7026f21ad874e088a712c8e
Signed-off-by: Damjan Marion <damarion@cisco.com>
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This will allow us to use this code in client libraries without vlib.
Change-Id: I8557b752496841ba588aa36b6082cbe2cd1867fe
Signed-off-by: Damjan Marion <damarion@cisco.com>
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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>
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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>
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Also allow group write as default for CLI socket connections.
Change-Id: I6af1f277f70581358cd9241bf0f5cb0752fe250f
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: Ia78e69e5e8ed18020314aef321b94ac37037799b
Signed-off-by: Damjan Marion <damarion@cisco.com>
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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>
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In the CLI parsing, below is a common pattern:
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "x"))
x = 1;
:
else
return clib_error_return (0, "unknown input `%U'",
format_unformat_error, line_input);
}
unformat_free (line_input);
The 'else' returns if an unknown string is encountered. There a memory
leak because the 'unformat_free(line_input)' is not called. There is a
large number of instances of this pattern.
Replaced the previous pattern with:
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "x"))
x = 1;
:
else
{
error = clib_error_return (0, "unknown input `%U'",
format_unformat_error, line_input);
goto done:
}
}
/* ...Remaining code... */
done:
unformat_free (line_input);
return error;
}
In multiple files, 'unformat_free (line_input);' was never called, so
there was a memory leak whether an invalid string was entered or not.
Also, there were multiple instance where:
error = clib_error_return (0, "unknown input `%U'",
format_unformat_error, line_input);
used 'input' as the last parameter instead of 'line_input'. The result
is that output did not contain the substring in error, instead just an
empty string. Fixed all of those as well.
There are a lot of file, and very mind numbing work, so tried to keep
it to a pattern to avoid mistakes.
Change-Id: I8902f0c32a47dd7fb3bb3471a89818571702f1d2
Signed-off-by: Billy McFall <bmcfall@redhat.com>
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Chris Luke
Paul Vinciguerra
Dave Barach
Dave Barach
Steve Shin
Florin Coras
Damjan Marion
Billy McFall
Neale Ranns
Yoann Desmouceaux