VRF creation can happen from either cli or from
knowledged about the vrf learned from zebra.
In the case where we learn about the vrf from
the cli, the vrf id is UNKNOWN. Upon actual
creation of the vrf, lib/vrf.c touches up the vrf_id
and calls pim_vrf_enable to turn it on properly.
At this point in time we have a pim->vrf_id of
UNKNOWN and the vrf->vrf_id of the right value.
There is no point in duplicating this data. So just
remove all pim->vrf_id and use the vrf->vrf_id instead
since we keep a copy of the pim->vrf pointer.
This will remove some crashes where we expect the
pim->vrf_id to be usable and it's not.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
When creating configuration for a vrf *Before* the vrf has been
created, pim will not properly create the pimreg device and
we will promptly crash when we try to pass data.
Put some code checks in place to ensure that the pimreg is
created for vrf's.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
IGMP packets received from a source that does not match the subnet
of any configured addresses on the receive interface should be
ignored.
Also, find and use the correct IGMP socket object for the received
IGMP packet.
Signed-off-by: Nathan Bahr <nbahr@atcorp.com>
Signed-off-by: Jafar Al-Gharaibeh <jafar@atcorp.com>
Suppose you have more than 2 addresses on a pim interface:
lo up default 10.255.0.1/32
10.255.0.101/32
10.255.0.254/32
A `show ip pim int lo` gives us this:
eva# show ip pim interface lo
Interface : lo
State : up
Address : 10.255.0.1 (primary)
10.255.0.101/32
When we go look at the code that pulls secondary addresses in
we are using a prefix_cmp to know if we know about a secondary already
but were expecting true values instead of -1/0/1 being returned.
Modify code so that pim sees all secondary addresses
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Replace all `random()` calls with a function called `frr_weak_random()`
and make it clear that it is only supposed to be used for weak random
applications.
Use the annotation described by the Coverity Scan documentation to
ignore `random()` call warnings.
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
RCA: Upstreams which are in register state other than noinfo, doesnt remove
register tunnel from oif after it becomes nonDR
Fix: scan upstreams with iif as the old dr and check if couldReg becomes false.
If couldreg becomes false from true, remove regiface and stop reg timer.
Do not disturb the entry. Later the entry shall be removed by kat expiry.
Signed-off-by: Saravanan K <saravanank@vmware.com>
RCA: This was todo item in current code base
Fix: Hello sent with 0 hold time before we update the pim ifp primary address
Signed-off-by: Saravanan K <saravanank@vmware.com>
RCA:
Trying to get primary address for the interface.
Unnumbered interface pick address from vrf device for non default.
While doing so it ends up in recursion without exit condition if vrf dev doesnt have any address.
Solution:
Break the recursion by checking if it is vrf device.
Signed-off-by: Saravanan K <saravanank@vmware.com>
RCA: When configured more than 32(MAXVIS), the inerfaces that are configured
after 32nd interfaces have the value of MAXVIF.
This is used as index to access the free vif tracker of array size 32(MAXVIFS).
So the channel oil list pointer which is present as the next field in pim structure get corrupt, when updating free vif.
This gets accessed during rpf update resulting in crash.
Fix: Refrain from allocating mcast interface structure and throw config error when more than MAXVIFS are attempted to configure.
Max vif checks are exempted for vrf device and pimreg as vrf device will be the first interface and not expected to fail and pimreg has reserved vif.
vxlan tunnel termination device creation has this check and throw warning on max vif.
All other creation are through CLI.
Signed-off-by: Saravanan K <saravanank@vmware.com>
ipmr-lo is an internally added device used for multicast vxlan tunnel
termination. This device is not expected to be managed by the admin
however in the case it is accidentally shut we need to be able handle
it by recovering when it is "no shut" again.
Ticket: CM-24985
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Commit: ddbf3e6060
This commit modified the interface up handling code in
ZAPI such that the zclient handled the decoding for you.
Prior to this commit ospf assumed that it could use the
old ifp pointer to know state before reading the stream.
This lead to a situation where ospf would `smartly` track
and do the right thing in this situation. This commit
changed this assumption and in certain scenarios, say
a interface was changed after it was already up would
lead to situations where ospf would not properly handle
the new interface up.
Modify ospf to track data that is important to it in
it's interface->info pointer.
This code pattern was followed in both eigrp and pim.
In eigrp's case it was just behaving weirdly in any event
so fixing this pattern is not a big deal. In pim's
case it was not properly using this so it's a no-op
to fix.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Cleanup the interface creation apis to make it more
clear what they are doing.
Make it explicit that the creation via name/ifindex will
only add it to the appropriate list.
Signed-off-by: Stephen Worley <sworley@cumulusnetworks.com>
For all the places we have a zclient->interface_up convert
them to use the interface ifp_up callback instead.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Switch the zclient->interface_add functionality to have everyone
use the interface create callback in lib/if.c
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Start the conversion to allow zapi interface callbacks to be
controlled like vrf creation/destruction/change callbacks.
This will allow us to consolidate control into the interface.c
instead of having each daemon read the stream and react accordingly.
This will hopefully reduce a bunch of cut-n-paste stuff
Create 4 new callback functions that will be controlled by
lib/if.c
create -> A upper level protocol receives an interface creation event
The ifp is brand spanking newly created in the system.
up -> A upper level protocol receives a interface up event
This means the interface is up and ready to go.
down -> A upper level protocol receives a interface down
destroy -> A upper level protocol receives a destroy event
This means to delete the pointers associated with it.
At this point this is just boilerplate setup for future commits.
There is no new functionality.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
There is no need to check for ALLOC function failures
in the code base. If we cannot get more memory we
assert.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Introduce new cli commands ip igmp last-member-query-count <1-7>
ip igmp last-member-query-interval <1-255> deciseconds.
Display the config in show running config and show ip igmp interface
Signed-off-by: Sarita Patra <saritap@vmware.com>
For vxlan origination mroutes the IIF is pinned to
a. lo for single VTEPs
b. peerlink-rif for anycast VTEPs
This commit includes the changes to react to pim-vifi add/del for these
devices.
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
ipmr-lo is a dummy netdev with no additional addressing requirements -
root@TORS1:~# ip -d link show ipmr-lo
28: ipmr-lo: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default
link/ether 12:5a:ae:74:51:a2 brd ff:ff:ff:ff:ff:ff promiscuity 0
dummy addrgenmode eui64
root@TORS1:~#
This device is used by pim-vxlan to signify multicast-vxlan-tunnel
termination.
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Add a command to track if an interface should be in active-active
mode or not. This command is hidden at this time because it
is not finished fully.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
In pim_if_new use bool instead of an int to pass
true/false values for what we should create the
pim interface type for.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
The startup of a non-integrated config was not properly
allowing for startup to create the vif when we have
not learned about the interface we are trying to configure
at this point in time. Actually notice when we are
trying to create a pimreg device or not to properly
notice when to attempt to create the vif or not.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
The pim_socket_join_source function only ever calls
pim_igmp_join_source and pim_socket_join_source is only
called from 1 place. Skip the level of indirection.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
The interface itself knows if it is a vrf device or
not, so let's just use a check for that in the decision
if a interface is a loopback or not.
Additionally modify function to return a bool.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Feature of mtrace only IGMP sockets on pim sm and pim
ssm interfaces. Modifed IGMP socket creation and show
igmp interface command output.
Signed-off-by: Mladen Sablic <mladen.sablic@gmail.com>
When creating the pim_ifp, and we run out of memory there
existed a chance that we would dereference the failed memory
pointer.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
A recent commit has shown that we were not consistent with
handling of the vrf lookup. Adjust pim to do the right
thing with vrf lookup to be consistent and to make SA
happier.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This improves code readability and also future-proofs our codebase
against new changes in the data structure used to store interfaces.
The FOR_ALL_INTERFACES_ADDRESSES macro was also moved to lib/ but
for now only babeld is using it.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
