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goodbye spooky code
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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Not 1 or 0.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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Presume typo from original author
Signed-off-by: Tim Bray <tim@kooky.org>
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Compiling an empty C file with most headers included and -Wc++-compat
gives us a build error if we introduce some stupid C++-incompatible
change.
While this won't catch everything, it's a good start.
Signed-off-by: David Lamparter <equinox@diac24.net>
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Signed-off-by: Ruben Kerkhof <ruben@rubenkerkhof.com>
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YANG allows lists without keys for operational data, in which case
the list elements are uniquely identified using a positional index
(starting from one).
This commit does the following:
* Remove the need to implement the 'get_keys' and 'lookup_entry'
callbacks for keyless lists.
* Extend nb_oper_data_iter_list() so that it special-cases keyless
lists appropriately. Since both the CLI and the sysrepo plugin
use nb_oper_data_iterate() to fetch operational data, both these
northbound clients automatically gain the ability to understand
keyless lists without additional changes.
* Extend the confd plugin to special-case keyless lists as well. This
was a bit painful to implement given ConfD's clumsy API, but
keyless lists should work ok now.
* Update the "test_oper_data" unit test to test keyless YANG lists in
addition to regular lists.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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[master] build reproducibility
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These are causing random test failures when the host's domainname is
actually set to something (as opposed to empty/unset, which it is 99% of
times.)
Signed-off-by: David Lamparter <equinox@diac24.net>
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Confirmed commits allow the user to request an automatic rollback to
the previous configuration if the commit operation is not confirmed
within a number of minutes. This is particularly useful when the user
is accessing the CLI through the network (e.g. using SSH) and any
configuration change might cause an unexpected loss of connectivity
between the user and the managed device (e.g. misconfiguration of a
routing protocol). By using a confirmed commit, the user can rest
assured the connectivity will be restored after the given timeout
expires, avoiding the need to access the router physically to fix
the problem.
When "commit confirmed TIMEOUT" is used, a new "commit" command is
expected to confirm the previous commit before the given timeout
expires. If "commit confirmed TIMEOUT" is used while there's already
a confirmed-commit in progress, the confirmed-commit timeout is
reset to the new value.
In the current implementation, if other users perform commits while
there's a confirmed-commit in progress, all commits are rolled back
when the confirmed-commit timeout expires. It's recommended to use
the "configure exclusive" configuration mode to prevent unexpected
outcomes when using confirmed commits.
When an user exits from the configuration mode while there's a
confirmed-commit in progress, the commit is automatically rolled
back and the user is notified about it. In the future we might
want to prompt the user if he or she really wants to exit from the
configuration mode when there's a pending confirmed commit.
Needless to say, confirmed commit only work for configuration
commands converted to the new northbound model. vtysh support will
be implemented at a later time.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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The northbound infrastructure for operational data was subpar compared
to the infrastructure for configuration data. This commit addresses most
of the existing problems, making it possible to write operational-data
callbacks for more complex YANG models.
Summary of the changes:
* Add support for nested YANG lists.
* Add support for leaf-lists.
* Add support for leafs of type "empty".
* Introduce the "show yang operational-data XPATH" command, and write an
unit test for it. The main purpose of this command is to make it
easier to test the operational-data northbound callbacks.
* Introduce the nb_oper_data_iterate() function, that can be used
to iterate over operational data. Make the CLI and sysrepo use this
function.
* Since ConfD has a very peculiar API, it can't reuse the
nb_oper_data_iterate() like the other northbound clients. In this
case, adapt the existing ConfD callbacks to support the new features
(and make some performance improvements in the process).
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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The hash_cmp functions need to return bool since commit 74df8d6d9d6.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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This commit introduces lib/id_alloc, which has facilities for both an ID number
allocator, and less efficient ID holding pools. The pools are meant to be a
temporary holding area for ID numbers meant to be re-used, and are implemented
as a linked-list stack.
The allocator itself is much more efficient with memory. Based on sizeof
values on my 64 bit desktop, the allocator requires around 155 KiB per
million IDs tracked.
IDs are ultimately tracked in a bit-map split into many "pages." The
allocator tracks a list of pages that have free bits, and which sections
of each page have free IDs, so there isn't any scanning required to find
a free ID. (The library utility ffs, or "Find First Set," is generally a
single CPU instruction.) At the moment, totally empty pages will not be
freed, so the memory utilization of this allocator will remain at the
high water mark.
The initial intended use case is for BGP's TX Addpath IDs to be pulled
from an allocator that tracks which IDs are in use, rather than a free
running counter. The allocator reserves ID #0 as a sentinel value for
an invalid ID numbers, and BGP will want ID #1 reserved as well. To
support this, the allocator allows for IDs to be explicitly reserved,
though be aware this is only practical to use with low numbered IDs
because the allocator must allocate pages in order.
Signed-off-by Mitchell Skiba <mskiba@amazon.com>
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Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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libunwind provides an alternate to backtrace() for printing out the call
stack of a particular location. It doesn't use the frame pointer, it
goes by the DWARF debug info. In most cases the traces have exactly the
same information, but there are some situations where libunwind traces
are better.
(On some platforms, the libc backtrace() also uses the DWARF debug info
[e.g.: ARM backtraces are impossible without it] but this is not the
case everywhere, especially not on BSD libexecinfo.)
Signed-off-by: David Lamparter <equinox@diac24.net>
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This fixes all remaining local variable shadowing cases
Signed-off-by: F. Aragon <paco@voltanet.io>
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test_cli.refout is written by configure into the build directory, thus
we need a little special glue to find it correctly.
Signed-off-by: David Lamparter <equinox@diac24.net>
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May SUBDIRS rest in pieces... er, peace.
Signed-off-by: David Lamparter <equinox@diac24.net>
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Switch code and tests to use new stream_resize_inplace functionality.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Signed-off-by: David Lamparter <equinox@diac24.net>
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Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Some of the parameters for lib/srcdest.. have changed to
consts, make the test cases respect that.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Align the srcdest table test with recent api changes that use
'const' more strictly. Remove test_bgp_table binary - looks
as if it was committed by mistake.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
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Signed-off-by: F. Aragon <paco@voltanet.io>
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Signed-off-by: F. Aragon <paco@voltanet.io>
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I see lots of the same code being copy-pasted and slightly tweaked for
string processing all over the codebase. Time to start aggregating these
pieces into something consistent and correct.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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* Add general-purpose DFS traversal code
* Add ability to dump any graph to DOT language
* Add tests for graph datastructure
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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The following types are nonstandard:
- u_char
- u_short
- u_int
- u_long
- u_int8_t
- u_int16_t
- u_int32_t
Replace them with the C99 standard types:
- uint8_t
- unsigned short
- unsigned int
- unsigned long
- uint8_t
- uint16_t
- uint32_t
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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Just tests zlog_hexdump right now
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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Also modify `struct route_entry` to use nexthop_groups.
Move ALL_NEXTHOPS loop to nexthop_group.h
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Signed-off-by: Christian Franke <chris@opensourcerouting.org>
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* Fix rare failure caused when end pointer is at end of buffer memory
and a call to ringbuf_get() is made that reads all of the data in the
buffer; start pointer was advanced past end pointer, causing some
special handling to be skipped
* Fix ringbuf_peek() moving start pointer
* Fix use after free
* Remove extraneous assignment
* Update relevant tests
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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lib: add ring buffer
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Peek functionality for ring buffers and associated tests.
Also:
* Slight optimization to avoid 0-byte memcpy() by changing > to >=
* Add rv checks for some ringbuf_[put|get] calls that were missing them
in the test
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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Simple ring buffer implementation useful for fixed size FIFO queues.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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Store selected_fib as a pointer off of rib_dest_t
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The $Id: lines would allow code kept in cvs to substitute
the file version upon checkout. Since we are not using
cvs there is no need to keep these lines anymore.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Add write callback.
Add error callback.
Add frrzmq_check_events() function to check for edge triggered things
that may have happened after a zmq_send() call or so.
Update ZMQ tests.
Signed-off-by: ßingen <bingen@voltanet.io>
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add reference output & run the test with proper libs and such.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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adds a new all-daemon "debug memstats-at-exit" command. Also saves
memstats to a file in /tmp, useful if a long-running daemon is having
weird issues (e.g. in a user install).
Fixes: #437
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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A mismatch between the make rule and the include path causes dependency
tracking to try to build the clippy.c file twice (at the same time),
which results in spurious build failures.
Fixes: #971
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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This splits off privs_preinit(), which does the lookups for user and
group IDs. This is so the init code can create state directories while
still running as root.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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- SIGTSTP appropriately suspends the foreground terminal
- SIGINT causes the daemon to exit, regardless of -d
- SIGQUIT causes the daemon to daemonize, regardless of -d
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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This reverts commit c14777c6bfd0a446c85243d3a9835054a259c276.
clang 5 is not widely available enough for people to indent with. This
is particularly problematic when rebasing/adjusting branches.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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w/ clang 5
* reflow comments
* struct members go 1 per line
* binpack algo was adjusted
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indent.py `git ls-files | pcregrep '\.[ch]$' | pcregrep -v '^(ldpd|babeld|nhrpd)/'`
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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newline redux
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Allow for more than 1 NH recursion level
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