Description:
The following show commands are added to display helper specific
information.
1.show ip ospf graceful-restart helper [detail] [json]
--> displays user configurations and list of all helpers details.
2.show ip ospf neighbour detail
--> diplays helper details
Signed-off-by: Rajesh Girada <rgirada@vmware.com>
Description:
The follwoing helper exit scenarios are handled.
1. Recv Max age grace LSA from RESTARTER.
2. Grace timer expiry.
3. Due to topo change if lsa check is enabled.
Signed-off-by: Rajesh Girada <rgirada@vmware.com>
Description:
1. Skipping inactivity timer during graceful restart to make
the RESTARTER active even after dead timer expiry.
2. Handling HELPER on unplanned outages.
Signed-off-by: Rajesh Girada <rgirada@vmware.com>
1. Ospf dead-interval will be set as 4 times of hello-interval, incase
if it is not set by using "ip ospf dead-interval <dead-val>".
2. On resetting hello-interval using "no ip ospf hello-interval" the
dead interval and hello due will be changed accordingly.
Signed-off-by: Kaushik <kaushik@niralnetworks.com>
In a topology like R1 -- R2 -- R5, with R2 being NSSA ABR and R5 being
ASBR redistributing external routes, the ABR R2 will translate type-7
LSA into type-5 and advertise to the backbone. In the current implementation
R2 is also advertising a type-4 LSA when there is no need.
RFC 3101: "...NSSA's border routers never originate Type-4 summary-LSAs
for the NSSA's AS boundary routers, since Type-7 AS-external-LSAs are
never flooded beyond the NSSA's border..."
With this PR a type-4 LSA will not be advertised
Signed-off-by: ckishimo <carles.kishimoto@gmail.com>
When the ASBR stops announcing a prefix into the NSSA area, the LSA
type 7 is removed from the area. However the ABR is refreshing the
type 5 in its LSDB while removing the Type 7 LSA. Routers outside
the area do not get an update.
With this change the LSA type 5 is flushed from the LSDB and the
change is announced to routers outside the area
Signed-off-by: ckishimo <carles.kishimoto@gmail.com>
1. Fix for duplicating calls of ospf_external_lsa_refresh()
in ospf_distribute_list_update_timer().
2. Added the comment and change from PR 6981.
Signed-off-by: Kaushik <kaushik@niralnetworks.com>
If NSSA is enabled before redistribution is configured, Type-7 LSA's
are installed. But if NSSA is enabled after redistribution is
configured, Type-7 LSAs are missing.
With this change, when NSSA is enabled, scan for external LSA's and
if they exist, install Type-7.
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
1. Minor change in distribute-list update timer based on lsa flag.
Co-authored-by: harios <hari@niralnetworks.com>
Signed-off-by: Kaushik <kaushik@niralnetworks.com>
In the context of TI-LFA it is necessary to have multiple
representations of SPFs for so called P and Q spaces. Hence it makes
sense to start with fresh vertex lists, and only delete them when
the SPF calculation is not a 'dry run'.
Signed-off-by: GalaxyGorilla <sascha@netdef.org>
Following PR #6726, Coverity Scan detected some new errors in the OSPF Segment
Routing code. This patch corrects them.
Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
OSPFD sends ARP proactively to speed up convergence for /32 networks
on a p2p connection. It is only an optimization, so it can be disabled.
It is enabled by default.
Signed-off-by: Jakub Urbańczyk <xthaid@gmail.com>
PR #6416 that solves opsf crash when segment routing is restarted, introduce a
regression in Extended Prefix flooding: when segment routing prefix is modified
or removed, new segment routing prefix is no more flooded. This patch correct
this regression.
Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
Add new option to `segment-routing prefix` command to set the
Explcit Null flag in addition to the No-PHP flag. MPLS LFIB configuration
has been also updated to take into account the Explicit Null flag.
Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
RFC 8665 defines a Segment Routing Local Block for Adjacency SID.
This patch provides the possibility to modify the SRLB as well as
reserved the block range from the Label Manager.
- Introduce new CLI 'segment-routing local-block'
- Add local block to SRDB structure
- Parse / Serialize SRLB in Router Information LSA
- Update OSPF-SR topotest
- Update documentation
Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
Segment Routing Global Block is now using the Label Manager to reserved
label range. Label Manager connection uses the synchronous mode and dedicated
thread timer is used to establish the connection in safe manner without
blocking OSPFd is the Label Manager is not available.
Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
In the case of P2P links it is possible to use IP unnumbered which
yields a strong dependency to the interface data for nexthop
resolution in the SPF calculations. While the SPF code strives to
be as independent of non-LSA data as possible there is no way
around here: one has to resolve the nexthop for such a special case
using the interface data.
For this purpose a new flag 'spf_root_node' is introduced to signal
that interface data can be used for P2P links. For now this flag is
always 'true' since the SPF currently always uses the calculating
node as the root node. This will change with the introduction of
TI-LFA where other nodes can be root nodes.
Signed-off-by: GalaxyGorilla <sascha@netdef.org>
in OSPF interface data is used for the nexthop resolution
during the SPF algorithm, see RFC2328 16.1.1. However, for
certain technologies like TI-LFA it is desirable to be able
to calculate SPFs for arbitrary root nodes, not just the
calculating node. Since interface data is not available for
other nodes it is necessary to remove this dependency and
make its usage optional, depending on the intent of
changing the RIB with the generated tree (or not).
To signal that a SPF run is used without the intent to
change the RIB an additional flag `spf_dry_run` is
introduced to the ospf_area struct. This flag is currently
only used within the pure SPF code but will be extended
to the SPF postprocessing later on.
Signed-off-by: GalaxyGorilla <sascha@netdef.org>
Just non-functional changes, cosmetics, removal of eye
cancer. The intention here is to make the SPF code more
approachable.
Signed-off-by: GalaxyGorilla <sascha@netdef.org>
Router Information are contained in opaque LSAs and when such a LSA
is received a new SR node for the advertising router is created.
However, the RI related data is currently not set when such a SR node
already exists. This can happen when e.g. link and prefix information
arrive before the RI and therefore an SR node is created.
This is now fixed by setting the data everytime the RI is received,
independent of the SR node already existing or not.
Signed-off-by: GalaxyGorilla <sascha@netdef.org>
The `INET_ADDRSTRLEN` is 16 and is only enough to format an IPv4 address.
So when there is a prefix (`/xx`), the debug output may get truncated.
Use `PREFIX2STR_BUFFER` macro instead to fix the issue.
Signed-off-by: Aaron LI <aly@aaronly.me>
If you configure an area range in decimal format, the running
configuration displays it in dotted format.
Call ospf_area_display_format_set() for area range command,
as it is done for other variants.
Signed-off-by: Duncan Eastoe <duncan.eastoe@att.com>
Remove mid-string line breaks, cf. workflow doc:
.. [#tool_style_conflicts] For example, lines over 80 characters are allowed
for text strings to make it possible to search the code for them: please
see `Linux kernel style (breaking long lines and strings)
<https://www.kernel.org/doc/html/v4.10/process/coding-style.html#breaking-long-lines-and-strings>`_
and `Issue #1794 <https://github.com/FRRouting/frr/issues/1794>`_.
Scripted commit, idempotent to running:
```
python3 tools/stringmangle.py --unwrap `git ls-files | egrep '\.[ch]$'`
```
Signed-off-by: David Lamparter <equinox@diac24.net>
BFD profiles can now be used on the interface level like this:
interface eth1
ip router isis 1
isis bfd
isis bfd profile default
Here the 'default' profile needs to be specified as usual in the
bfdd configuration.
Signed-off-by: GalaxyGorilla <sascha@netdef.org>
On startup of both zebra and ospfd. If ospfd has not
received a valid router-id *but* has received interface
data, interfaces will not be turned on in the state
machine. When ospf finally receives a valid router-id
it would never actually kick the state machine into
action for those interfaces it has been configured for.
Modify ospf on router id changes, *if* the old
router id was INADDR_ANY *and* the interface is
operative *and* the oi->state is ISM_Down, give
it the old kick in the patooeys
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Default originate with route-map was broken. Routemap
was not getting applied for redistribute route but was
getting applied default route itself. No default route
was originated even when routemap was satisfied.
Signed-off-by: Santosh P K <sapk@vmware.com>
Fix a number of library and daemon issues so that daemons can
call frr_fini() during normal termination. Without this,
temporary logging files are left behind in /var/tmp/frr/.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
For coherency, move and rename functions that send MPLS labels configurations
from ospf_sr.c to ospf_zebra.c:
- ospf_zebra_update_prefix_sid()
- ospf_zebra_delete_prefix_sid()
- ospf_zebra_send_adjacency_sid()
Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
SIDs are not uninstall in LFIB when ospf adjacenyi or loopback goes down as
self LSA flusing is not handle by ospf_ext_link_lsa_update(). The patch
introduces new functions ospf_sr_ext_itf_add() and ospf_sr_ext_itf_delete() in
ospf_sr.c to directly manage LFIB for SIDs when change is detected in
ospf_ext_link_ism_change() and ospf_ext_link_nsm_change().
Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
- Improve parsing of Router Information, especially when a router
stops advertising Segment Routing capabilities
- Finish conversion to '%pFX' and '%pI4'
Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
* Change sr_prefix structure in ospf_sr.h to add support to ECMP
* Add new Segment Routing information to ospf_paths in ospf_route.h
* Backport MPLS label configuration from IS-IS Segment Routing implementation
* Re-write log message in ospf_sr.c and ospf_ext.c
Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
Description:
OSPF uses an algo to generate unique LSIDs when route updates
exists with same adrress and different masklens. It genearates
the unique LSIDs by masking its hostbits.
Ex :
Rt1 : 10.0.0.0/32 - LSID : 10.0.0.0
Rt2 : 10.0.0.0/16 - LSID : 10.0.255.255
Rt3 : 10.0.0.0/24 - LSID : 10.0.0.255
Observed an issue with external LSAs when such routes originated.
If the first route (with actual address as LSID) is got deleted,
the routes with same addresss(different msaks) are failed
to get LSA pointers from LSDB due to current fetching API design.
api : ospf_external_info_find_lsa
Here , it is allowing to look up the LSA with address specific
unique LSID (address with host bits set ex: 10.0.255.255) only
if the LSA exists where LSID as actual address of the route
(ex: 10.0.0.0 ) which is not expected and cauing for other issues.
Fix:
Corrected this logic, by looking up the LSA with unique LSID first
if it doesn’t exist then It is allowing to look up the LSDB with LSID
as address of the route.
Signed-off-by: Rajesh Girada <rgirada@vmware.com>
Issue number #6291 describes how OSPFd crashes after being deleted and then
added again with configuration when segment routing is used.
The problem occurs in ospf_ri.c because the OspfRI structures retains
the reference to the old area pointer which is mofified when ospfd is
reactivated by configuration. When segment routing is activated, the LSA Router
Information is sent with reference to the old area pointer, instead the new one,
which causes the crash. The same problem is also present in ospf_ext.c with
OspfEXT structure and Extended Link/Prefix structure.
This commit introduces Extended Link/Prefix and Router Information LSAs flusing
when OSPFd is stopped when configuration is removed and adds the correct
initialization to the area pointer in OspfRI and Extended Link/Prefix structure
when OSPFd is re-enabled with the configuration. Area pointer has been removed
from the OspfEXT structure as it is never used with this commit.
Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
The command `area ... virtual-link ... retransmit-interval` supports
1-65535 range and the documentation already said
`ip ospf retransmit-interval` supports that, lets make the DEFUN to
accept that value.
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
Description:
When a routemap applied to set a tag, all the permitted routes are
refreshed with new tag, but when a different route map applied with
a different action still the same tag persits in the external route.
The actual tag received from zebra is expected to be set back to the
routes here. Corrected this behaviour by restoring a original tag
received from zebra.
Signed-off-by: Rajesh Girada <rgirada@vmware.com>
Description:
Route-tag is not set to external lsas originated by ospf when a routemap
applied by setting a specific tag. When applying a route-map on redistribution,
external lsas will be refreshed if there is any change in the route parametrs
after applying routemap. But changing tag is not handled here.
Added the apripriate fix to correct this.
Signed-off-by: Rajesh Girada <rgirada@vmware.com>
These are easy to get subtly wrong, and doing so can cause
nondeterministic failures when racing in parallel builds.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
It's possible(but unlikely) that a read of data from the
network will give us bogus data. Don't automatically
just trust the data size from the network and limit
the read to the size of the buffer we have in play.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Replace sprintf with snprintf where straightforward to do so.
- sprintf's into local scope buffers of known size are replaced with the
equivalent snprintf call
- snprintf's into local scope buffers of known size that use the buffer
size expression now use sizeof(buffer)
- sprintf(buf + strlen(buf), ...) replaced with snprintf() into temp
buffer followed by strlcat
Signed-off-by: Quentin Young <qlyoung@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>
And again for the name. Why on earth would we centralize this, just so
people can forget to update it?
Signed-off-by: David Lamparter <equinox@diac24.net>
Same as before, instead of shoving this into a big central list we can
just put the parent node in cmd_node.
Signed-off-by: David Lamparter <equinox@diac24.net>
There is really no reason to not put this in the cmd_node.
And while we're add it, rename from pointless ".func" to ".config_write".
[v2: fix forgotten ldpd config_write]
Signed-off-by: David Lamparter <equinox@diac24.net>
The only nodes that have this as 0 don't have a "->func" anyway, so the
entire thing is really just pointless.
Signed-off-by: David Lamparter <equinox@diac24.net>
Fix
- Modulo check on data length not inclusive enough
- Garbage heap read when bounds checking
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
ospf_opaque_self_originated_lsa_received decrements refcount which can
result in a free, this is followed by a call to ospf_ls_ack_send which
accesses the freed LSA
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
... Oops ...
(for context, the defaults code originally didn't have a dedicated
"bool" variant and just used long for bools... I derp'd this when
adding bool as a separate case :( )
Reported-by: Donald Sharp <sharpd@cumulusnetworks.com>
Signed-off-by: David Lamparter <equinox@diac24.net>
Line break at the end of the message is implicit for zlog_* and flog_*,
don't put it in the string. Mid-message line breaks are currently
unsupported. (LF is "end of message" in syslog.)
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Some logging systems are, er, "allergic" to tabs in log messages.
(RFC5424: "The syslog application SHOULD avoid octet values below 32")
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Use the zapi_nexthop struct with the mpls_labels
zapi messages instead of the special-purpose (and
more limited) nexthop struct that was being used.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Multi instance ospf support was broken due to PR #4564.
Adding fix back and extra checks to support multi instance
OSPF.
Fixes issues #5343 & #5741
Signed-off-by: Santosh P K <sapk@vmware.com>
The vrrpd one conflicts with the standalone vrrpd package; also we're
installing daemons to /usr/lib/frr on some systems so they're not on
PATH.
Signed-off-by: David Lamparter <equinox@diac24.net>
Address Sanitizer is reporting this issue:
==26177==ERROR: AddressSanitizer: heap-use-after-free on address 0x6120000238d8 at pc 0x7f88f7c4fa93 bp 0x7fff9a641830 sp 0x7fff9a641820
READ of size 8 at 0x6120000238d8 thread T0
#0 0x7f88f7c4fa92 in if_delete lib/if.c:290
#1 0x42192e in ospf_vl_if_delete ospfd/ospf_interface.c:912
#2 0x42192e in ospf_vl_delete ospfd/ospf_interface.c:990
#3 0x4a6208 in no_ospf_area_vlink ospfd/ospf_vty.c:1227
#4 0x7f88f7c1553d in cmd_execute_command_real lib/command.c:1073
#5 0x7f88f7c19b1e in cmd_execute_command lib/command.c:1132
#6 0x7f88f7c19e8e in cmd_execute lib/command.c:1288
#7 0x7f88f7cd7523 in vty_command lib/vty.c:516
#8 0x7f88f7cd79ff in vty_execute lib/vty.c:1285
#9 0x7f88f7cde4f9 in vtysh_read lib/vty.c:2119
#10 0x7f88f7ccb845 in thread_call lib/thread.c:1549
#11 0x7f88f7c5d6a7 in frr_run lib/libfrr.c:1093
#12 0x412976 in main ospfd/ospf_main.c:221
#13 0x7f88f73b082f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
#14 0x413c78 in _start (/usr/local/master/sbin/ospfd+0x413c78)
Effectively we are in a shutdown phase and as part of shutdown we delete the
ospf interface pointer ( ifp->info ). The interface deletion code
was modified in the past year to pass in the address of operator
to allow us to NULL out the holding pointer. The catch here
is that we free the oi and then delete the interface passing
in the address of the oi->ifp pointer, causing a use after free.
Fixes: #5555
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
We actually don't validate the IHL field, although it certainly looks
like we do at a casual glance.
This patch saves us from an assert in case we actually do get an IP
packet with an incorrect header length field.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
Some preprocessor constants converted to enums to make the names usable
in the preprocessor.
v2: better isolation between core and vty code to make future northbound
conversion easier.
Signed-off-by: David Lamparter <equinox@diac24.net>
Well, "obviously" this condition block is pointless, since
ospf_router_id_update is called afterwards unconditionally...
(And even if it were needed, it would need to go in ospf_get too.)
Signed-off-by: David Lamparter <equinox@diac24.net>
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>
We are only saving 20 bytes of string output for ospf neighbor
commands. Fixed output:
act-7326-05# show ip ospf vrf vrf1012 neighbor all
VRF Name: vrf1012
Neighbor ID Pri State Dead Time Address Interface RXmtL RqstL DBsmL
9.9.12.11 1 Full/DROther 39.973s 200.254.2.10 swp49s0.2:200.254.2.9 4 0 0
9.9.12.12 1 Full/DROther 39.995s 200.254.2.14 swp49s1.2:200.254.2.13 9 0 0
9.9.12.13 1 Exchange/DROthe 39.981s 200.254.2.18 swp49s2.2:200.254.2.17 157 0 0
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
We test nbr->oi in a couple of places for null, but
in the majority of places of the nbr->oi data is being
used we just access it. Touch up code to trust this
assertion and make the code more consistent in others.
Found in Coverity.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
The indentation level for ospf_read was starting to be pretty
extremene. Rework into 2 functions for improved readability.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Read in up to 20(ospf write-multipler X) packets, for handling of data.
This improves performance because we allow ospf to have a bit more data
to work on in one go for spf calculations instead of 1 packet at a time.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Turning on packet debugs and seeing a header dump that is 11
lines long is useless
2019/11/07 01:07:05.941798 OSPF: ip_v 4
2019/11/07 01:07:05.941806 OSPF: ip_hl 5
2019/11/07 01:07:05.941813 OSPF: ip_tos 192
2019/11/07 01:07:05.941821 OSPF: ip_len 68
2019/11/07 01:07:05.941831 OSPF: ip_id 48576
2019/11/07 01:07:05.941838 OSPF: ip_off 0
2019/11/07 01:07:05.941845 OSPF: ip_ttl 1
2019/11/07 01:07:05.941857 OSPF: ip_p 89
2019/11/07 01:07:05.941865 OSPF: ip_sum 0xcf33
2019/11/07 01:07:05.941873 OSPF: ip_src 200.254.30.14
2019/11/07 01:07:05.941882 OSPF: ip_dst 224.0.0.5
We already have this debugged, it's not going to change and the
end developer can stick this back in if needed by hand to debug
something that is not working properly.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit has:
The received packet path in ospf, had absolutely no debugs associated with
it. This makes it extremely hard to know when we receive packets for
consumption. Add some breadcrumbs to this end.
Large chunks of commands have no ability to debug what is happening
in what vrf. With ip overlap X vrf this becomes a bit of a problem
Add some breadcrumbs here.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Add a helper function to return the name of the vrf we are in
so it can be used as part of debug strings.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
We have a bunch of places that look for ORIGINAL_CODING. There is
nothing in our configure system to define this value and a quick
git blame shows this code as being original to the import a very
very long time ago. This is dead code, removing.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Recently Lot of issues are seen in OSPF adjacnecy establishements,
sessions was tear down because of DD Sequence Number mismatch.
adding Debugs to capture Master & slave generated sequence numbers.
Signed-off-by: Satheesh Kumar K <sathk@cumulusnetworks.com>
Use a local variable to avoid trying to take the address
of a packed struct member - an address from the ip header
in these cases.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
The opaque lsa that we are storing is stored on various
lists depending on it's type. This removal from the
list was being done *after* the pointer was freed. This
is not a good idea. Since the use after free was just
removal from a linked list and the freeing function does
not do anything other than free data, than just switching the function
order should be sufficient.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Root Cause:
Lookup for the point-to-point neighbor was failing because the neighbor
lookup was based on neighbor interface IP address. But, for point-to-point
neighbor the key is router-id for lookup. Lookup failure was causing the
BFD updates from PTM to get dropped.
Fix:
Added walk of the neighbor list if the network type is point-to-point to
find the appropriate neighbor. The match is based on source IP address of
the neighbor since that’s the address registered with BFD for monitoring.
Ticket: CM-20411
Signed-off-by: Radhika Mahankali <radhika@cumulusnetworks.com>
Scenarios where this code change is required:
1. BFD is un-configured from BGP at remote end.
Neighbour BFD sends ADMIN_DOWN state, but BFD on local side will send
DOWN to BGP, resulting in BGP session DOWN.
Removing BFD session administratively shouldn't bring DOWN BGP session
at local or remote.
2. BFD is un-configured from BGP or shutdown locally.
BFD will send state DOWN to BGP resulting in BGP session DOWN.
(This is akin to saying do not use BFD for BGP)
Removing BFD session administratively shouldn't bring DOWN BGP session at
local or remote.
Signed-off-by: Sayed Mohd Saquib sayed.saquib@broadcom.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's no need to install MPLS FTNs using the ZEBRA_ROUTE_ADD
message since the ZEBRA_MPLS_LABELS_ADD message already does that
(in addition to installing an MPLS LSP).
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
