Ensure that we have a valid vrf before we log
information about it.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Reviewed-by: Don Slice <dslice@cumulusnetworks.com>
When bgp logs ADJCHANGE messages include the
hostname and vrf that this change is being made
in.
Ticket: CM-10922
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Problem found to be derefencing a vrf that had already been deleted. Fix
verifies that vrf exists before using it.
Ticket: CM-13682
Signed-off-by: Don Slice
Reviewed By: Vivek Venkatraman
Testing Done: manual testing, re-run of failing scripts good
When bgp logs ADJCHANGE messages include the
hostname and vrf that this change is being made
in.
Ticket: CM-10922
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Ensure that we have a valid vrf before we log
information about it.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Reviewed-by: Don Slice <dslice@cumulusnetworks.com>
When bgp logs ADJCHANGE messages include the
hostname and vrf that this change is being made
in.
Ticket: CM-10922
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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>
The way thread.c is written, a caller who wishes to be able to cancel a
thread or avoid scheduling it twice must keep a reference to the thread.
Typically this is done with a long lived pointer whose value is checked
for null in order to know if the thread is currently scheduled. The
check-and-schedule idiom is so common that several wrapper macros in
thread.h existed solely to provide it.
This patch removes those macros and adds a new parameter to all
thread_add_* functions which is a pointer to the struct thread * to
store the result of a scheduling call. If the value passed is non-null,
the thread will only be scheduled if the value is null. This helps with
consistency.
A Coccinelle spatch has been used to transform code of the form:
if (t == NULL)
t = thread_add_* (...)
to the form
thread_add_* (..., &t)
The THREAD_ON macros have also been transformed to the underlying
thread.c calls.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
Implement support for negotiating IPv4 or IPv6 labeled-unicast address
family, exchanging prefixes and installing them in the routing table, as
well as interactions with Zebra for FEC registration. This is the
implementation of RFC 3107.
Signed-off-by: Don Slice <dslice@cumulusnetworks.com>
This means there are no ties into the SNMP code anymore other than the
init call at startup.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
This patch enable the support of graceful restart for routes sets with
vpnv4 address family format. In this specific case, data model is
slightly different and some additional processing must be done when
accessing bgp tables and nodes.
The clearing stale algorithm takes into account the specificity where
the 2 node level for MPLS has to be reached.
Signed-off-by: Julien Courtat <julien.courtat@6wind.com>
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
Reverts the --enable-bgp-standalone and makes it so that you
need to use --enable-cumulus to get the cumulus behavior.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This is a rather large mechanical commit that splits up the memory types
defined in lib/memtypes.c and distributes them into *_memory.[ch] files
in the individual daemons.
The zebra change is slightly annoying because there is no nice place to
put the #include "zebra_memory.h" statement.
bgpd, ospf6d, isisd and some tests were reusing MTYPEs defined in the
library for its own use. This is bad practice and would break when the
memtype are made static.
Acked-by: Vincent JARDIN <vincent.jardin@6wind.com>
Acked-by: Donald Sharp <sharpd@cumulusnetworks.com>
[CF: rebased for cmaster-next]
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Signed-off-by: Christian Franke <chris@opensourcerouting.org>
lib/zebra.h has FILTER_X #define's. These do not belong there.
Put them in lib/filter.h where they belong.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
(cherry picked from commit 0490729cc033a3483fc6b0ed45085ee249cac779)
Ticket:
Reviewed By:
Testing Done:
For interface-based peering, we don't update the reset reason to be
interface down. Similarly, we don't update the reason to be loss of
neighbor address (maybe due to RA loss). This patch addresses these
limitations.
Various changes and fixes related to VRF registration, deletion,
BGP exit etc.
- Define instance type
- Ensure proper handling upon instance create, delete and
VRF add/delete from zebra
- Cleanup upon bgp_exit()
- Ensure messages are not sent to zebra for unknown VRFs
Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Reviewed-by: Donald Sharp <sharpd@cumulusnetworks.com>
Ticket: CM-9128, CM-7203
Reviewed By: CCR-4098
Testing Done: Manual
Signed-off-by: Daniel Walton <dwalton@cumulusnetworks.com>
Reviewed-by: Donald Sharp <sharpd@cumulusnetworks.com>
Ticket: CM-8122
per draft-ietf-idr-ix-bgp-route-server-09:
2.3.2.2.2. BGP ADD-PATH Approach
The [I-D.ietf-idr-add-paths] Internet draft proposes a different
approach to multiple path propagation, by allowing a BGP speaker to
forward multiple paths for the same prefix on a single BGP session.
As [RFC4271] specifies that a BGP listener must implement an implicit
withdraw when it receives an UPDATE message for a prefix which
already exists in its Adj-RIB-In, this approach requires explicit
support for the feature both on the route server and on its clients.
If the ADD-PATH capability is negotiated bidirectionally between the
route server and a route server client, and the route server client
propagates multiple paths for the same prefix to the route server,
then this could potentially cause the propagation of inactive,
invalid or suboptimal paths to the route server, thereby causing loss
of reachability to other route server clients. For this reason, ADD-
PATH implementations on a route server should enforce send-only mode
with the route server clients, which would result in negotiating
receive-only mode from the client to the route server.
This allows us to delete all of the following code:
- All XXXX_rsclient() functions
- peer->rib
- BGP_TABLE_MAIN and BGP_TABLE_RSCLIENT
- RMAP_IMPORT and RMAP_EXPORT
BGP ORF prefix lists are in a separate namespace; this was previously
hooked up with a special-purpose AFI value. This is a little kludgy for
extension, hence this splits it off.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Ticket: CM-7140
Reviewed By: CCR-3412
Testing Done: bgpsmoke, Atul verified fix
BGP Unnumbered and Interface based peering can interact in some strange
ways. One of them is when there's an IPv4 address on a link on which
BGP Unnumbered session is beng attempted, but the IPv4 address is not
a /30 or /31. As per the bug report, we end up attempting to start the
BGP FSM on receiving a notification that an IPv4 address is present on
an interface. To avoid attempting to go past BGP's start state in the
absence of a valid peer address is the right thing to do. And this
simple patch does just that.
Signed-off-by: Dinesh G Dutt <ddutt@cumulusnetworks.com>
Reviewed-by: Donald Sharp <sharpd@cumulusnetworks.com>
Reviewed-by: Vipin Kumar <vipin@cumulusnetworks.com>
Ticket: CM-7861
Reviewed by: CCR-3651
Testing: See bug
bgp is using both bm->master and master pointers interchangebly
for thread manipulation. Since they are the same thing consolidate
to one pointer.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Ticket: CM-7439
Reviewed By: Donald Sharp
Testing Done:
If a session was reset due to a NOTIFICATION the "show ip bgp
neighbor" output would not display details on what the
notification actually was. This patch changes that. Example:
superm-redxp-05# show ip bgp neighbors 20.1.2.2
BGP neighbor is 20.1.2.2, remote AS 21, local AS 10, external link
[snip]
Last reset 01:05:07, due to NOTIFICATION sent (OPEN Message Error/Bad Peer AS)
This patch adds a hostname capability. The node's hostname and
domainname are exchanged in the new capability and used in show command
outputs based on a knob enabled by the user. The hostname and domainname
can be a maximum of 64 chars long, each.
Signed-off-by: Dinesh G Dutt <ddutt@cumulusnetworks.com>
Reviewed-by: Daniel Walton <dwalton@cumulusnetworks.com>
Reviewed-by: Vivek Venkataraman <vivek@cumulusnetworks.com>
Ticket: CM-5660
Reviewed By: CCR-2563
Testing Done:
Ticket: CM-4109
Reviewed-by: CCR-3414
Testing: See bug
Fixup of these memory issues:
(A) peer->clear_node_queue was accidently removed. Add back in.
(B) Clean up bm->process_main_queue and bm->process_rsclient_queue initialization
(C) Some memory leaks
(D) Clean up unused threads
Ticket: CM-6789
Reviewed By: CCR-3263
Testing Done: Manual Testing and smoke tests
Whenever some sort of output is encountered, added a json version with
proper logic as well.
Also, there is no reason stored in the last_reset field when BGP peer goes down due BFD. Incorrect/no peer down reason can get logged when BGP peer goes down due to BFD. Fixed it by adding new BFD peer down reason code and storing it in the peer last_reset field when peer is broght down due to BFD.
This patch also adds BFD multihop support for BGP. Whether a peer is multi-hop or single hop is determined internally. All IGP peers are considered as multi-hop peers. EBGP peers are considered as single hop unless configured as multi-hop.
BGP BFD command enhancement to configure BFD parameters (detect multiplier, min rx and min tx).
router bgp <as-number>
neighbor <name/ip-address> bfd <detect mult> <min rx> <min tx>
Signed-off-by: Radhika Mahankali <radhika@cumulusnetworks.com>
Reviewed-by: Dinesh G Dutt <ddutt@cumulusnetworks.com>
Reviewed-by: Vipin Kumar <vipin@cumulusnetworks.com>
Reviewed-by: Kanna Rajagopal <kanna@cumulusnetworks.com>
bgpd: Exchange hostname capability and display hostnames in outputs
This patch adds a hostname capability. The node's hostname and
domainname are exchanged in the new capability and used in show command
outputs based on a knob enabled by the user. The hostname and domainname
can be a maximum of 64 chars long, each.
Signed-off-by: Dinesh G Dutt <ddutt@cumulusnetworks.com>
Reviewed-by: Daniel Walton <dwalton@cumulusnetworks.com>
Reviewed-by: Vivek Venkataraman <vivek@cumulusnetworks.com>
bgp: Fixup of the remote-as command to allow user to not have to enter an actual as number
Signed-off-by: Donald Sharp<sharpd@cumulusnetworks.com>
Reviewed-by:
peer - one initiated by the local system and the other initiated by the peer.
Enhance key debug logs to also print the socket file descriptor so that it is
clear which events pertain to which connection.
broken by some earlier patches. Instead of staying in Connect state
after reattempting the connection, the state used to go back to Idle
and then try to connect. This patch fixes this error.
state to facilitate clearing of the routes received from the peer - remove
from the RIB, reselect best path, update/delete from Zebra and to other
peers etc. At the end of this, a Clearing_Completed event is generated to
the FSM which will allow the peer to move out of Clearing to Idle.
The issue in the code is that there is a possibility of multiple Clearing
Completed events being generated for a peer, one per AFI/SAFI. Upon the
first such event, the peer would move to Idle. If other events happened
(e.g., new connection got established) before the last Clearing_Completed
event is received, bad things can happen.
Fix to ensure only one Clearing_Completed event is generated.
state through bgp_ignore() as that may not do required cleanup. Instead,
define a new event handler to handle such cases, which will go through
bgp_stop(). A similar change is also done to handle the case where an
event handler fails.
Also add a couple of variables to keep track of events for a peer.
