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The read in of cli was happening prior to thread
event handling for non-integrated configs. This
is interesting for 2 reasons:
1) Read-in of integrated configs was after thread
event loop startup, so we had a difference of behavior
2) Read-in can cause a series of events that cause
us to attempt to communicate with zebra. The zebra
zapi connection only happens after the thread event
loop has been started. This can cause data that
is being written down to zebra to be lost and
no real way to notice that this has happened and
to recover gracefully.
Modify the code to create a thread event for read
in of client config.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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If we fail to read in the config file and we have
specified a backup of the backup, attempt to
read that information.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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With a new version of clang 6.0, the compiler is detecting more
issues where we may be possibly be truncating the output string.
Fix by increasing the size of the output string to make the compiler
happy.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Signed-off-by: Christian Franke <chris@opensourcerouting.org>
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Signed-off-by: Lou Berger <lberger@labn.net>
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Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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vtysh: remove extra / in config path
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Non-integrated config paths need the treatment as well.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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This allows running the daemons inside of Linux network namespaces
without messing with an additional mount/fs namespace (or a ton of
options).
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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if we're using --terminal, the daemon may in some cases exit fast enough
for the parent to see this; this resulted in a confusing/bogus "failed
to start, exited 0" message.
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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Start creating a counterpart to frr_init and frr_late_init.
Unfortunately, some daemons don't do any exit handling, this doesn't
change that just yet.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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c9c8d0d ("lib: close stdin/out/err in non-terminal case") overshot its
goal and closes stdin/stdout/stderr even when a daemon is running in
foreground. That means stdout logging & exit memory reporting are both
broken.
Reported-by: Lou Berger <lberger@labn.net>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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watchfrr doesn't know if there will be -u/-g options on the individual
daemons, so it doesn't know what the appropriate ownership is.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Disable this in the code to make it hard for people to shoot themselves
in the foot. It's only left as a remnant for development use.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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This adds "@tcp" as new choice on the -z option present in zebra and the
protocol daemons. The --enable-tcp-zebra option on configure is no
longer needed, both UNIX and TCP socket support is always available.
Note that @tcp should not be used by default (e.g. in an init script),
and --enable-tcp-zebra should never have been in any distro package
builds, because
**** TCP-ZEBRA IS A SECURITY PROBLEM ****
It allows arbitrary local users to mess with the routing table and
inject bogus data -- and also ZAPI is not designed to be robust against
attacks.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Oops, forgot this path... in the --terminal case, stdio is closed when
the user ends the terminal session, but without terminal it was left
open.
(This caused a ssh session hang in the CentOS6 CI because the file
descriptors were still open, so ssh would keep the session alive...)
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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zlog_* doesn't work in startup before we've loaded the real logging
configuration. Add some code to log to stderr for that window of time.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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If the paths for pid or vty don't exist, try creating them. Failure is
ignored (on EEXIST) or prints a non-fatal warning (other errors).
Fixes: #507
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 allows, among other things, piping in a configuration from stdin.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Block the parent process until the child has reached the main loop, e.g.
full service is available.
This means it's no longer neccessary to add a "safety sleep" for daemon
cross-dependencies, when using the -d startup option. This doesn't help
if -d isn't used.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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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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Add support for naming pthreads. Also, note that we don't have any
records yet if that's the case.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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Oops. Fixes #715.
Reported-by: Daniel Walton <dwalton@cumulusnetworks.com>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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The FSF's address changed, and we had a mixture of comment styles for
the GPL file header. (The style with * at the beginning won out with
580 to 141 in existing files.)
Note: I've intentionally left intact other "variations" of the copyright
header, e.g. whether it says "Zebra", "Quagga", "FRR", or nothing.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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for snap support)
Signed-off-by: Martin Winter <mwinter@opensourcerouting.org>
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Please refer to lib/hook.h for a description/documentation.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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This adds a "-M" option to each daemon, to load dynamic modules at
startup. Modules are by default located in /usr/lib/frr/modules (lib64
if appropriate). Unloading or loading at runtime is not supported at
this point to keep things simple.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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When converting to new format we missed some code.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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The protocols enum serves no purpose other than adding potential for
bugs and making it complicated to add a new protocol... nuke.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Contains the fetch-and-run-thread logic, and vty startup (which is the
last thing happening before entering the main loop).
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Centralise read_config/daemonize/dryrun/pidfile/vty_serv into libfrr.
This also makes multi-instance pid/config handling available as part of
the library. It's only wired up in ospfd, but the code is in lib/.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Move CLI/VTY/Memory accounting init into frr_*
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Start centralising startup & option parsing into the library.
FRR_DAEMON_INFO is a bit weird, but it will become useful later (e.g.
for killing the ZLOG_* enum, and having the daemon name available)
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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