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Signed-off-by: Christian Hopps <chopps@labn.net>
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If you had a situation where an operator turned on
ospfd with snmp but not ospf6d and agentx was configured
then you get into a situation where ospf6d would complain
that the config for agentx did not exist. Let's modify
the code to allow this situation to happen.
Fixes: #15896
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Signed-off-by: Christian Hopps <chopps@labn.net>
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clang-format doesn't understand FRR_DAEMON_INFO is a long macro where
laying out items semantically makes sense.
(Also use only one `FRR_DAEMON_INFO(` in isisd so editors don't get
confused with the mismatching `( ( )`.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Signed-off-by: Christian Hopps <chopps@labn.net>
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Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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a) routemap data was not being cleaned up
b) rip data structure was not being cleaned up
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Use a minimum value of a CLI version and a value of Zebra capabilities.
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
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Implement RIP peer monitoring with BFD.
RFC 5882 Generic Application of Bidirectional Forwarding Detection
(BFD), Section 10.3 Interactions with RIP.
Co-authored-by: Renato Westphal <renato@opensourcerouting.org>
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
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We should probably prevent any type of namespace collision
with something else.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Let's find a better name for it.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Convert the `struct thread_master` to `struct event_master`
across the code base.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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This is a first in a series of commits, whose goal is to rename
the thread system in FRR to an event system. There is a continual
problem where people are confusing `struct thread` with a true
pthread. In reality, our entire thread.c is an event system.
In this commit rename the thread.[ch] files to event.[ch].
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Done with a combination of regex'ing and banging my head against a wall.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Naming functions/data structures more appropriately for
the project we are actually in.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
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... again ...
Signed-off-by: David Lamparter <equinox@diac24.net>
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Allow all daemons to work with filter northbound.
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
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Signed-off-by: Chirag Shah <chirag@cumulusnetworks.com>
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*: Remove parenthesis on return for constants
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Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
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Add the appropriated code to bootstrap route map northbound for all
daemons.
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
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And memory_init() to lib_cmd_init().
Signed-off-by: David Lamparter <equinox@diac24.net>
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Signed-off-by: David Lamparter <equinox@diac24.net>
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Rearrange the ripd northbound callbacks as following:
* rip_nb.h: prototypes of all northbound callbacks.
* rip_nb.c: definition of all northbound callbacks and their
associated YANG data paths.
* rip_nb_config.c: implementation of YANG configuration nodes.
* rip_nb_state.c: implementation of YANG state nodes.
* rip_nb_rpcs.c: implementation of YANG RPCs.
* rip_nb_notifications.c: implementation of YANG notifications.
This should help to keep to code more organized and easier to
maintain.
No behavior changes intended.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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Signed-off-by: Emanuele Di Pascale <emanuele@voltanet.io>
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Merge commit to solve a bunch of conflicts with other PRs that were
merged in the previous weeks.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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* Turn the "instance" YANG presence-container into a YANG list keyed
by the new "vrf" leaf. This is a backward incompatible change but
this should be ok for now.
* RIP VRF instances can be configured even when the corresponding
VRF doesn't exist. And a RIP VRF instance isn't deleted when
the corresponding VRF is deleted. For this to work, implement the
rip_instance_enable() and rip_instance_disable() functions that are
called to enable/disable RIP routing instances when necessary. A
RIP routing instance can be enabled only when the corresponding
VRF is enabled (this information comes from zebra and depends on
the underlying VRF backend). Routing instances are stored in the new
rip_instances rb-tree (global variable).
* Add a vrf pointer to the rip structure instead of storing vrf_id
only. This is much more convenient than using vrf_lookup_by_id()
every time we need to get the vrf pointer from the VRF ID. The
rip->vrf pointer is updated whenever the VRF enable/disable hooks
are called.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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This is the last step to make ripd ready for multi-instance support.
Remove the rip global variable and add a "rip" parameter to all
functions that need to know the RIP instance they are working
on. On some functions, retrieve the RIP instance from the interface
variable when it exists (this assumes interfaces can pertain to
one RIP instance at most, which is ok for VRF support).
In preparation for the next commits (VRF support), add a "vrd_id"
member to the rip structure, and use rip->vrf_id instead of
VRF_DEFAULT wherever possible.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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* Call rip_clean() only when RIP is configured, this way we can
remove one indentation level from this function.
* rip_redistribute_clean() is only called on shutdown, so there's
no need to call rip_redistribute_withdraw() there since the RIP
table is already cleaned up elsewhere.
* There's no need to clean up the "rip->neighbor" nodes manually before
calling route_table_finish().
* Deallocate the rip structure only at the end of the function. This
prepares the ground for the next commits where all global variables
will be moved to the rip structure.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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A while ago all FRR configuration commands were converted to use the
QOBJ infrastructure to keep track of configuration objects. This
means the configuration lock isn't necessary anymore because the
QOBJ code detects when someones tries to edit a configuration object
that was deleted and react accordingly (log an error and abort the
command). The possibility of accessing dangling pointers doesn't
exist anymore since vty->index was removed.
Summary of the changes:
* remove the configuration lock and the vty_config_lockless() function.
* rename vty_config_unlock() to vty_config_exit() since we need to
clean up a few things when exiting from the configuration mode.
* rename vty_config_lock() to vty_config_enter() to remove code
duplication that existed between the three different "configuration"
commands (terminal, private and exclusive).
Configuration commands converted to the new northbound model don't
need the configuration lock either since the northbound API also
detects when someone tries to edit a configuration object that
doesn't exist anymore.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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The vty configuration lock is used to prevent inconsistencies when
multiple users are editing the configuration at the same time. The
pointer stored in vty->index might become invalid if the associated
configuration object is removed by another user in another CLI session.
Commands converted to the new northbound model don't use vty->index,
but vty->xpath_index and the vty->xpath array. The nb_cli_cfg_change()
function uses the VTY_CHECK_XPATH macro to check if the configuration
object being edited still exists and returns an error if it doesn't.
Now that all ripd commands were converted to the new northbound model,
remove the ripd vty lock because it's not necessary anymore.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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We can now leverage the new northbound API to perform a full configuration
reload in ripd without the need for external help (i.e. frr-reload.py).
When vty_read_config() is called with the 'config' parameter set to
NULL, it performs a new configuration transaction where the running
configuration is *replaced* by the provided configuration file. With that
said, we don't need to do anything other than calling this function in
the SIGHUP handler of all FRR daemons. If a daemon hasn't been converted
to the new northbound model, vty_read_config() will simply *merge*
the configuration file into the running configuration.
The calls to rip_clean() and rip_reset() in the SIGUP handler were
changing configuration variables directly, bypassing the northbound
layer. Configuration variables should be changed only by the northbound
callbacks, and failure to respect that inevitably leads to inconsistencies
and crashes. Fix this.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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Introduce frr-ripd.yang, which defines a model for managing the FRR
ripd daemon. Also add frr-route-types.yang which defines typedefs for
FRR route types.
Update the 'frr_yang_module_info' array of ripd with the new 'frr-ripd'
module.
Add two new files (rip_cli.[ch]) which should contain all ripd commands
converted to the new northbound model. Centralizing all commands in a
single place will facilitate the process of moving the CLI to a separate
program in the future.
Add automatically generated stub callbacks in rip_northbound.c. These
callbacks will be implemented gradually in the following commits.
Add example JSON/XML ripd configurations in yang/examples/.
Add the confd.frr-ripd.yang YANG module with annotations specific to
the ConfD daemon.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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Introduce frr-interface.yang, which defines a model for managing FRR
interfaces.
Update the 'frr_yang_module_info' array of all daemons that will
implement this module.
Add automatically generated stub callbacks in if.c. These callbacks will
be implemented in the following commit.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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FRR_DAEMON_INFO should now contain an array of 'frr_yang_module_info'
structures describing the YANG modules implemented by the daemon.
This array will be used by frr_init() function to load all YANG modules
and initialize the northbound callbacks during the daemon initialization.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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The Vrf aliases can be known with a specific hook. That hook will then,
from zebra propagate the information to the relevant zapi clients.
The registration hook function is the same for all daemons.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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This option is only implemented by 4 daemons:
- BGPD
- RIPD
- RIPNGD
- Zebra
Manpages and documentation say that the option causes routes to not be
uninstalled from zebra when the daemon terminates. This is true for RIPD
and RIPNGD. This is not true for BGPD; in that daemon it only prevents
transmission of Cease / Peer Unconfig NOTIFICATION messages to peers.
Moreover, when any daemon disconnects from Zebra, all of its routes are
uninstalled from Zebra and the kernel regardless of this option,
rendering the option largely vestigial.
It is still useful in Zebra, where it prevents all routes from being
uninstalled when Zebra shuts down, so it is left there.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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This allow us to find real leaks more easily with tools like valgrind.
Signed-off-by: Renato Westphal <renato@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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Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Vrf stuff
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We only needed to add/change the vrf callbacks when we initialize
the vrf subsystem. As such it is not necessary to handle the callbacks
in any other way than through the init function.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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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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These don't serve any purpose either.
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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