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ospf6d: rework BFD integration and add BFD profiles support
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Don't uninstall sessions if the address, interface, VRF or TTL didn't change.
Update the library documentation to make it clear to other developers.
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
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Allow sessions to remove themselves from the notifications without
risking crashes.
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
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lib: remove enabled flag for bfd sessions
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Currently this flag is only helpful in an extremely rare situation when
the BFD session registration was unsuccessful and after that zebra is
restarted. Let's remove this flag to simplify the API. If we ever want
to solve the problem of unsuccessful registration/deregistration, this
can be done using internal flags, without API modification.
Also add the error log to help user understand why the BFD session is
not working.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
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AC_TRY_COMPILE is deprecated too. Also configure.ac isn't executable.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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`CFLAGS` is a "user variable", not intended to be controlled by
configure itself. Let's put all the "important" stuff in AC_CFLAGS and
only leave debug/optimization controls in CFLAGS.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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... by referencing all autogenerated headers relative to the root
directory. (90% of the changes here is `version.h`.)
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Only try to unlink the buffer if we actually set it up beforehand...
Signed-off-by: David Lamparter <equinox@diac24.net>
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abort() raises SIGABRT, which would confusingly cause a 2nd backtrace to
be printed after the first one...
Signed-off-by: David Lamparter <equinox@diac24.net>
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fix vtysh_scan SNAFUs
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Signed-off-by: David Lamparter <equinox@diac24.net>
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Signed-off-by: David Lamparter <equinox@diac24.net>
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Signed-off-by: David Lamparter <equinox@diac24.net>
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Rather than copying everything over, include the file in vtysh_scan for
automatic pickup.
Signed-off-by: David Lamparter <equinox@diac24.net>
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lib: disable ASAN redzone around xref_p/xref_array
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The "xref_p" variables are placed in the "xref_array" section
specifically so they're next to each other and we get an array at the
end. The ASAN redzone that is inserted around global variables is
breaks that since it'd be inserted before and after each of the array
items. So disable the ASAN redzone for these variables (and only these
variables, nothing else should be affected.)
Signed-off-by: David Lamparter <equinox@diac24.net>
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lib: fix access-list deletion
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- Handle badly formatted messages (don't set `ifp` in that case)
- Handle unread messages (e.g. when family is not don't trigger `assert`)
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
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lib: Differentiate between real and cpu bound processes
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lib: remove "ip prefix-list sequence-number" command
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Problems with the current implementation:
* Delete hook is called before the deletion of the access-list from the
master list, which means that daemons processing this hook successfully
find this access-list, store a pointer to it in their structures, and
right after that the access-list is freed. Daemons end up having stale
pointer to the freed structure.
* Route-maps are not notified of the deletion.
This commit fixes both issues.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
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various acl/plist cli fixes
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lib: fix interface nb stale pointers
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nhrp: use zebra
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do not add a new route type, and consider 0 as a value meaning
that zebra should be the owner.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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zapi_nbr structure is renamed to zapi_neigh_ip.
Initially used to set a neighbor ip entry for gre interfaces, this
structure is used to get events from the zebra layer to nhrp layer.
The ndm state has been added, as it is needed on both sides.
The zebra dplane layer is slightly modified.
Also, to clarify what ZEBRA_NEIGH_ADD/DEL means, a rename is done:
it is called now ZEBRA_NEIGH_IP_ADD/DEL, and it signified that this
zapi interface permits to set link operations by associating ip
addresses to link addresses.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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lib: convert route-map optimization to NB
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fix xrelfo on ARM(32) & cross-compile
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The first change in this commit is the processing of the VRF termination.
When we terminate the VRF, we should not delete the underlying interfaces,
because there may be pointers to them in the northbound configuration. We
should move them to the default VRF instead.
Because of the first change, the VRF interface itself is also not deleted
when deleting the VRF. It should be handled in netlink_link_change. This
is done by the second change.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
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Currently we have a "route-map optimization" command which is entered
from inside the route-map entry but actually applies to the whole
route-map. In addition, this command is not shown in the running-config
and not stored to the startup-config during "write".
Let's add a new command on the config node level to control this setting
and show it in the running-config to make possible to save it during
"write".
The old command is saved for the backward compatibility but hidden and
marked as deprecated.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
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EVPN neighbor operations were already done in the zebra dataplane
framework. Now that NHRP is able to use zebra to perform neighbor IP
operations (by programming link IP operations), handle this operation
under dataplane framework:
- assign two new operations NEIGH_IP_INSTALL and NEIGH_IP_DELETE; this
is reserved for GRE like interfaces:
example: ip neigh add A.B.C.D lladdr E.F.G.H
- use 'struct ipaddr' to store and encode the link ip address
- reuse dplane_neigh_info, and create an union with mac address
- reuse the protocol type and use it for neighbor operations; this
permits to store the daemon originating this neighbor operation.
a new route type is created: ZEBRA_ROUTE_NEIGH.
- the netlink level functions will handle a pointer, and a type; the
type indicates the family of the pointer: AF_INET or AF_INET6 if the
link type is an ip address, mac address otherwise.
- to keep backward compatibility with old queries, as no extension was
done, an option NEIGH_NO_EXTENSION has been put in place
- also, 2 new state flags are used: NUD_PERMANENT and NUD_FAILED.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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this api is needed for nhrp. the goal is to implement it in zebra, while
other daemon will used it.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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a zebra api is extended to offer ability to add or remove neighbor
entry from daemon. Also this extension makes possible to add neigh
entry, not only between IPs and macs, but also between IPs and NBMA IPs.
This API supports configuring ipv6/ipv4 entries with ipv4/ipv6 lladdr.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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zebra implements zebra api for configuring link layer information. that
can be an arp entry (for ipv4) or ipv6 neighbor discovery entry. This
can also be an ipv4/ipv6 entry associated to an underlay ipv4 address,
as it is used in gre point to multipoint interfaces.
this api will also be used as monitoring. an hash list is instantiated
into zebra (this is the vrf bitmap). each client interested in those entries
in a specific vrf, will listen for following messages: entries added, removed,
or who-has messages.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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This patch implements new zapi api to get neighbor information that zebra knows
and that other daemons may need to know. Actually, nhrp daemons is
interested in getting the neighbor information on gre interfaces, and
the API will be used for that.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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Fixes #8419.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
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ARM (32-bit) needs DT_REL... and here I was hoping I could avoid the
trouble.
Fixes: #8355
Signed-off-by: David Lamparter <equinox@diac24.net>
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Lost ability to handle them in the regex patch
Signed-off-by: Quentin Young <qlyoung@nvidia.com>
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We should delete the access-list when the last entry and remark is
deleted. This is already done for prefix-lists.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
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We delete the prefix-list when its last entry is deleted, but the check
is missed when we delete the description.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
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CLI must never use operational data, because this won't work in
transactional mode. Rework search for prefix-list/access-list entries
using only candidate config.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
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The correct string representation for "empty" type is an empty string.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
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Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
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lib, ripngd: Remove inet6_ntoa
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*: modify VRF_CONFIGURED flag only in VRF NB layer
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lib: `printfrr()` care package
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