Add a bit of test code to allow the tester to install/uninstall
the routes via:
sharp install routes A.B.C.D nexthop Y.Z.M.D 1000000 repeat 100
This will install 1000000 routes wait for them to be finished
then uninstall them then start installation over 100 times.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com.
FreeBSD's libc segfaults when vsnprintf() is called with a null
format string. Add a null check before calling vsnprintf() to
resolve this problem.
Fixes#3537
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
Abstract the route install/delete functions a bit to allow me to
expand on them in the with future commits.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
zebra uses the SIOCETHTOOL ioctl with the ETHTOOL_GSET command to
fetch the speed of interfaces from the kernel. The only problem is
that ETHTOOL_GSET returns EOPNOTSUPP when the given interface is a
virtual interface. This leads to zebra emitting warnings like this
at startup:
ZEBRA: IOCTL failure to read interface lo speed: 95 Operation not supported
ZEBRA: IOCTL failure to read interface dummy0 speed: 95 Operation not supported
ZEBRA: IOCTL failure to read interface ovs-system speed: 95 Operation not supported
Silence these warnings by ignoring EOPNOTSUPP errors, since we know
they are harmless. This is similar to how we handle EINVAL errors
from the BSD SIOCGIFMEDIA ioctl (commit c69f2c1ff).
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
Unlike the other interface zapi messages, ZEBRA_INTERFACE_VRF_UPDATE
identifies interfaces using ifindexes and not interface names. This
is a problem because zebra always sends ZEBRA_INTERFACE_DOWN
and ZEBRA_INTERFACE_DELETE messages before sending
ZEBRA_INTERFACE_VRF_UPDATE, and the ZEBRA_INTERFACE_DELETE callback
from all daemons set the interface index to IFINDEX_INTERNAL. Hence,
when decoding a ZEBRA_INTERFACE_VRF_UPDATE message, the interface
lookup would always fail since the corresponding interface lost
its ifindex. Example (ospfd):
OSPF: Zebra: Interface[rt1-eth2] state change to down.
OSPF: Zebra: interface delete rt1-eth2 vrf default[0] index 8 flags 11143 metric 0 mtu 1500
OSPF: [EC 100663301] INTERFACE_VRF_UPDATE: Cannot find IF 8 in VRF 0
To fix this problem, use interface names instead of ifindexes to
indentify interfaces like the other interface zapi messages do.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
When installing routes via sharpd 'sharp install route... ' command
add the ability to specify a nexthop-group to use. This will
allow sharpd to create ECMP routes into zebra.
Nexthop-group:
!
nexthop-group JANELLE
nexthop 192.168.209.1
nexthop 192.168.210.1
!
The install:
donna.cumulusnetworks.com# sharp install routes 10.0.50.0 nexthop-group JANELLE 10
donna.cumulusnetworks.com# end
donna.cumulusnetworks.com# show ip route
Codes: K - kernel route, C - connected, S - static, R - RIP,
O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP,
F - PBR, f - OpenFabric,
> - selected route, * - FIB route
K>* 0.0.0.0/0 [0/106] via 10.0.2.2, enp0s3, 00:20:38
C>* 10.0.2.0/24 is directly connected, enp0s3, 00:20:38
D>* 10.0.50.0/32 [150/0] via 192.168.209.1, enp0s8, 00:00:02
* via 192.168.210.1, enp0s9, 00:00:02
D>* 10.0.50.1/32 [150/0] via 192.168.209.1, enp0s8, 00:00:02
* via 192.168.210.1, enp0s9, 00:00:02
D>* 10.0.50.2/32 [150/0] via 192.168.209.1, enp0s8, 00:00:02
* via 192.168.210.1, enp0s9, 00:00:02
D>* 10.0.50.3/32 [150/0] via 192.168.209.1, enp0s8, 00:00:02
* via 192.168.210.1, enp0s9, 00:00:02
D>* 10.0.50.4/32 [150/0] via 192.168.209.1, enp0s8, 00:00:02
* via 192.168.210.1, enp0s9, 00:00:02
D>* 10.0.50.5/32 [150/0] via 192.168.209.1, enp0s8, 00:00:02
* via 192.168.210.1, enp0s9, 00:00:02
D>* 10.0.50.6/32 [150/0] via 192.168.209.1, enp0s8, 00:00:02
* via 192.168.210.1, enp0s9, 00:00:02
D>* 10.0.50.7/32 [150/0] via 192.168.209.1, enp0s8, 00:00:02
* via 192.168.210.1, enp0s9, 00:00:02
D>* 10.0.50.8/32 [150/0] via 192.168.209.1, enp0s8, 00:00:02
* via 192.168.210.1, enp0s9, 00:00:02
D>* 10.0.50.9/32 [150/0] via 192.168.209.1, enp0s8, 00:00:02
* via 192.168.210.1, enp0s9, 00:00:02
C>* 192.168.209.0/24 is directly connected, enp0s8, 00:20:38
C>* 192.168.210.0/24 is directly connected, enp0s9, 00:20:38
donna.cumulusnetworks.com#
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Allow the sharp daemon to understand and use nexthop-groups.
This commit is merely to allow sharpd to understand them
when accepted in a future commit
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Modify the route_add function to take nexthop groups. Future commits
will allow sharpd to use nexthop groups as the install mechanism
for routes.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
The route_info data structure already had a mapping of route type
to admin distance. Consolidate the meta_queue_map information
into this route_info data structure. This is to reduce the number
of places we need to remember to touch when adding a new routing
protocol.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Certain EVPN configuartions should only be applied
under DEFAULT VRF bgpd instance.
reject the cli for non default bgp instance
Ticket:CM-18950
Signed-off-by: Chirag Shah <chirag@cumulusnetworks.com>
An EVPN type-2 entry is in freeze state during remote update,
remote VTEP can send typ-2 withdraw update,
upon receiving an entry delete (withdraw), first check
kernel has in local reachable state. Upon
unfreeze use the local entry to advertise to peers.
Fetch is for both MAC and IP, delete can come for
only MAC or MAC-IP combined route.
The specific entry fetch only required request flag to be set,
dump flag is not required.
Testing Done:
Simulate two VTEPs to do M1, IP1 mobility sequence,
freeze MAC during remote MAC update, subsequently send
withdraw type-2 route from origintating VTEP.
This results in read apis to invoke for local reachable entry.
Zebra updates its cache and upon unfreeze originates type-2.
Signed-off-by: Chirag Shah <chirag@cumulusnetworks.com>
Make netlink_request api generic where it can be used
for dump or querying specific information request.
nelink request nlm flags (NLM_F_ROOT | NLM_F_MATCH) are
used to dump purpose, if client wants to query spcific
MAC or IP using netlink_request does not require to set
them.
nlm struct is passed by the caller of netlink_request,
it can also set the nlm request flags.
Signed-off-by: Chirag Shah <chirag@cumulusnetworks.com>
DEFPY commands are easier to maintain and less susceptible to
bugs. In the long term we should try to merge the plethora of
"show ip ospf neighbor" commands (total of 14) into a single DEFPY.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
This code addition allows eigrp to set/unset the router-id
value. At this point I am not 100% sure that we do all the necessary
rework when a router-id changes. But on startup if read in before
a network statement we should be ok.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
In eigrp we were using a uint32_t to hold the `struct in_addr` data
for the router id values. This caused us to do unnecessary conversions
pre and post for in/out. Let's just use the standard `struct in_addr`
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Let's write the eigrp config even if we have no network statements
as that the other functions return safely if nothing to do here.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
The static daemon is setting up the prefix for printing
before it is decoded when we get notified about our
route.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
a distribute_ctx context pointer is returned after initialisation to the
calling daemon. this context pointer will be further used to do
discussion with distribute service. Today, there is no specific problem
with old api, since the pointer is the same in all the memory process.
but the pointer will be different if we have multiple instances. Right
now, this is not the case, but if that happens, that work will be used
for that.
distribute-list initialisation is split in two. the vty initialisation
is done at global level, while the context initialisation is done for
each routing daemon instance.
babel daemon is being equipped with a routing returning the main babel
instance.
also, a delete routine is available when the daemon routing instance is
suppressed.
a list of contexts is used inside distribute_list. This will permit
distribute_list utility to handle in the same daemon to handle more than
one context. This will be very useful in the vrf context.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
in order to enforce the vrf_id to return, from a vrf name, a check is
done on the vrf_name_to_id callback.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
redirect IP nh of flowspec entry is retrieved so that the nexthop
IP information is injected into the nexthop tracking, and is associated
to the bgp_path structure. This permits validating or unvalidating the
bgp_path for injection in zebra or not.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
We must open the PF_KEY socket before dropping privileges, otherwise the
socket creation will fail with permission problems.
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
This commit is the last missing piece to complete BGP LU support in bgpd. To this moment, bgpd (and zebra) supported auto label assignment only for prefixes leaked from VRFs to vpn and for MPLS SR prefixes. This adds auto label assignment to other routes types in bgpd. The following enhancements have been made:
* bgp_route.c:bgp_process_main_one() now sets implicit-null local_label to all local, aggregate and redistributed routes.
* bgp_route.c:bgp_process_main_one() now will request a label from the label pool for any prefix that loses the label for some reason (for example, when the static label assignment config is removed)
* bgp_label.c:bgp_reg_dereg_for_label() now requests labels from label pool for routes which have no associated label index
* zebra_mpls.c:zebra_mpls_fec_register() now expects both label and label_index from the calling function, one of which must be set to MPLS_INVALID_LABEL or MPLS_INVALID_LABEL_INDEX, based on this it will decide how to register the provided FEC.
Signed-off-by: Anton Degtyarev <anton@cumulusnetworks.com>
This doc is .. include::'d in snmp.rst and needs to be ignored as part
of the main toctree build. This patch squashes a Sphinx build warning.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
