After restart pim dr address was zero due to which pim (*,G) join
could not get propagated towards RP.
While trying to find primary address ll_highest will be zero initially,
since we have not received address from zebra yet.
So we can get the best address at this point and use it as primary address
whenever ll_highest is zero.
Fixes: #11925
Signed-off-by: Abhishek N R <abnr@vmware.com>
Root Cause:
"clear ipv6 mroute" was not deleting the subscribers of gm_if
structure.
Fix:
The command "clear ipv6 mroute" deletes grp_pends, gsq_pends, sgs,
subscribers, expires of gm_if data structure.
Deleted the common code in gm_ifp_teardown() and called
gm_group_delete().
Issue: #11724
Signed-off-by: Sarita Patra <saritap@vmware.com>
Changed PIM_DEBUG_IGMP_TRACE to PIM_DEBUG_GM_TRACE and
PIM_DEBUG_IGMP_TRACE_DETAIL to PIM_DEBUG_GM_TRACE_DETAIL.
Hence, these macros can be used for both v6 and v4.
Issue: #11895
Co-authored-by: Sai Gomathi N <nsaigomathi@vmware.com>
Signed-off-by: Abhishek N R <abnr@vmware.com>
Changing
PIM_DO_DEBUG_IGMP_EVENTS to PIM_DO_DEBUG_GM_EVENTS
PIM_DO_DEBUG_IGMP_PACKETS to PIM_DO_DEBUG_GM_PACKETS
PIM_DO_DEBUG_IGMP_TRACE to PIM_DO_DEBUG_GM_TRACE
PIM_DO_DEBUG_IGMP_TRACE_DETAIL to PIM_DO_DEBUG_GM_TRACE_DETAIL
PIM_DONT_DEBUG_IGMP_EVENTS to PIM_DONT_DEBUG_GM_EVENTS
PIM_DONT_DEBUG_IGMP_PACKETS to PIM_DONT_DEBUG_GM_PACKETS
PIM_DONT_DEBUG_IGMP_TRACE to PIM_DONT_DEBUG_GM_TRACE
PIM_DONT_DEBUG_IGMP_TRACE_DETAIL to PIM_DONT_DEBUG_GM_TRACE_DETAIL
PIM_MASK_IGMP_EVENTS to PIM_MASK_GM_EVENTS
PIM_MASK_IGMP_PACKETS to PIM_MASK_GM_PACKETS
PIM_MASK_IGMP_TRACE to PIM_MASK_GM_TRACE
PIM_MASK_IGMP_TRACE_DETAIL to PIM_MASK_GM_TRACE_DETAIL
to be used for both IGMP and MLD debugs.
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Added Robustness value, Query interval, Query response timer
and Last member query interval field in json output.
Issue: #11891
Signed-off-by: Abhishek N R <abnr@vmware.com>
Changing the macros to common so that it can be used for pimv6 debugs as well
to be used for both IGMP and MLD debugs.
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Changing the macros to common so that it can be used for pimv6 debugs as well
to be used for both IGMP and MLD debugs.
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
When there is update in the configuration of last_member_query_interval
and last_member_query_count, call gm_ifp_update().
This will update cur_query_intv_trig and cur_lmqc of gm_ifp structure.
Issue: #11901
Signed-off-by: Sarita Patra <saritap@vmware.com>
show ip pim state should show IGMP Report while
show ipv6 pim state should show MLD Report.
Output After Fix:
frr# do sh ip pim state
Codes: J -> Pim Join, I -> IGMP Report, S -> Source, * -> Inherited from (*,G), V -> VxLAN, M -> Muted
Active Source Group RPT IIF OIL
frr# do sh ipv6 pim state
Codes: J -> Pim Join, I -> MLD Report, S -> Source, * -> Inherited from (*,G), V -> VxLAN, M -> Muted
Active Source Group RPT IIF OIL
frr#
Issue: #11249
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Modifying igmp_group_count of struct pim_instance
to gm_group_count which is to be used for both IGMP and MLD.
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
When calling time(NULL), FRR is intentionally throwing
away the upper 32 bits of value returned. Let's explicitly
call it out so that coverity understands this is intentional
and ok.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
IPv4 and IPv6 behaves a little bit differently with the socket
options.
IPPROTO_RAW socket option is only for IPv4.
Therefore the register packet was not properly getting encapculated
for PIMv6 and was working fine for PIMv4.
So have used IPPROTO_PIM for PIMv6.
Fixes: #11846
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
The socket created for pimv6 was created using AF_INET for PIMV6
too.
Since the api pim_reg_sock is common to both PIMv4 and PIMv6,
need to use PIM_AF instead of AF_INET.
Fixes: #11815
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
The call into pim_cmd_lookup_vrf may be NULL
and dereferencing it before ensuring that the
vrf pointer is non-NULL is a good way to crash.
A crash can be initiated in pim:
eva# show ip msdp vrf NOEXIST mesh-group
vtysh: error reading from pimd: Permission denied (13)Warning: closing connection to pimd because of an I/O error!
eva# 2022/08/15 11:47:38 [PHJDC-499N2][EC 100663314] STARVATION: task vtysh_rl_read (560b77f76de6) ran for 16777ms (cpu time 0ms)
eva#
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
When calling pim_upstream_add, the lookup for upstream
or the creation of the upstream cannot fail. As such
up is never NULL.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
in pim_ifchannel.c there exists several spots where
the ch->upstream is assumed to be NULL. This is not
possible.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
The problem here is when the same node is FHR as well as RP,
then the node keeps on sending the register packet.
Register-stop is not sent as well.
This problem has occurred because the RP is the same node
and there is no socket created on loopback interface, so the
packet is never send out and never received back on the same
node, so register recv could not be processed on the node and
hence no register-stop is sent.
Since register packets are unicast packets, its better to handle
the send of register packet via a separate register socket.
This fixes the problem mentioned above as well.
Fixes: #11331
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Change the show running commands for bsm and vxlan pimv4 and pimv6
debug commands based on the address family.
Including bsm and vxlan in no debug pimv6 debug.
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Allow the same group/source route to be configured on more than one interface.
Currently FRR doesn't allow adding the same mroute on different input interfaces.
Current behavior, if we have the following config:
```
interface eth1
ip mroute eth0 239.0.0.1
interface eth2
ip mroute eth0 239.0.0.1
```
Only one multicast route will be installed with an input interface of the last
interface configured.
Signed-off-by: Nathan Bahr <nbahr@atcorp.com>
Signed-off-by: Jafar Al-Gharaibeh <jafar@atcorp.com>
Topology:
R1(LHR) ---- R2 ----R4(FHR)
---- R3 ----
R2 = RP
Steps to reproduce:
1. R1(LHR) sends IGMP join, R4(FHR) sends multicast traffic.
Verify traffic is flowing from FHR to LHR.
2. Restart R1(LHR).
3. Below sequence of events are happening after FRR restart in R1(LHR).
4. R1(LHR) Register RP address to Zebra.
5. R1(LHR) Receive update from Zebra that R2(RP) is reachable via R3.
6. R1(LHR) Receive IGMP join for group 225.1.1.1, will create pim upstream
and (*,G) mroute with IIF towards R3.
7. R1(LHR) Receive update from Zebra that RP is reachable via R2(RP).
8. R1(LHR) Update the PIM upstream IIF, but not updating the (*,G) IIF
even there is RPF change.
9. R1(LHR) receives IGMP join for group 225.1.1.2, will create (*,G) with
IIF towards R2(RP), both upstream and (,G) created with IIF towards R2(RP).
Root Cause:
Mroute IIF is not getting updated when better route update
received. It is still pointing to the older nexthop.
Fix:
Update the mroute IIF when there is change in nexthop.
Fixing Issue #11675
Signed-off-by: Sarita Patra <saritap@vmware.com>
Coverity is complaining that buf has not been initialized.
It has and coverity appears to be confused so let's help it
find the initialization.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
The API pim_rp_check_interface_addrs checks if the RP address matches
with the primary address then it returns true.
In case of PIMv4 this condition is true, therefore the router becomes RP.
But in case of PIMv6, this condition does not pass because primary address
for PIMv6 is link-local address.
Also PIMv4 allows secondary addresses to be used as RP
if it is a host route in case primary does not match.
Fixing it by only checking the configured
RP address with the interface address and ignoring the prefix
length since it does not matter.
Fixes: #11335
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
In several places, we are getting the vrf structure using
vrf_lookup_by_name(). Again we are passing vrf->vrf_id to
pim_get_pim_instance() to get the pim_instance.
The API pim_get_pim_instance() again get the VRF structure using
vrf_lookup_by_id(). This is avoided in this PR.
Signed-off-by: Sarita Patra <saritap@vmware.com>
Longest possible length of a IPV6 (S,G) string is 94 bytes
INET6_ADDRSTRLEN * 2 = 46 * 2
(,) = 1
NULL Character at end = 1
Signed-off-by: Sarita Patra <saritap@vmware.com>
These are in packed structs at weird offsets (e.g. 2 bytes), and as such
need a memcpy to get them into proper alignment.
It'd be even better if the pimd code used proper de/serialization, but
let's get this improved one step at a time.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
"show ip pim interface traffic json" shows pruneTx first and then
pruneRx stats
where as
"show ip pim interface <ifname> json" shows pruneRx first and then
pruneTx stats.
Although the values are right but the display looks odd.
Making it same as other stats, first display Rx and then Tx.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
By default, disable pim6d compilation. If someone
wants to enable the compilation, should use ./configure option
with --enable-pim6d.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Fixed ANVL Conformance PIM-SM 16.3 test case.
When (S,G,rpt) prune is received, we were installing
the mroute immediately with none as OIF.
This leads to dropping the (S,G) traffic during prune
pending time as well.
Also we should not install the mroute if there is no
change in the rpf update.
These 2 things lead to the failure of the test case.
Fixed it by blocking the installation in this scenario.
When prune pending timer pops, it will take care of
installing the mroute with none as OIF.
Fixes: #11535
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
For pim callbacks, we pass pim_addr as value, not pointer.
So making it consistent for pim_nht callbacks.
Signed-off-by: sarita patra <saritap@vmware.com>
In this PR, we are handling the pim_vxlan_orig_mr_up_add()
after rpf_addr modified from prefix to pim_addr.
Signed-off-by: sarita patra <saritap@vmware.com>
Currently rpf_addr is of type struct prefix, but it's always
a /32 host prefix. So changing it to pim_addr in order to support both
IPV4 and IPV6.
Signed-off-by: sarita patra <saritap@vmware.com>
Moving the reusable code of pim_show_nexthop apis to common file
pim_cmd_common.c file and adding the json support for show ipv6 pim nexthop
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Problems Identified:
show ip pim nexthop cli didn't have json extension and
show ip pim vrf all upstream have improper json format
Description:
show ip pim nexthop command shows the nexthops that are being used.
Added json support for the command.
show ip pim vrf all upstream displays upstream information for all vrfs about a S,G mroute.
Formatted the json structure for this command.
Signed-off-by: nsaigomathi <nsaigomathi@vmware.com>
Implementing the TBD of watermark-warn CLI for IPv6 MLD
This command can be use to warn the user
when more than the desired limit of groups gets configured.
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Modifying igmp_watermark_limit of struct pim_instance
to gm_watermark_limit which is to be used for both IGMP and MLD.
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
As per RFC 4601 section 4.9.4, For Register-Stops,
the Mask Len field contains full address length * 8
(e.g. 32 for IPv4 native encoding) (e.g. 128 for IPv6),
if the message is sent for a single group
The issue is seen after 10356, so fixed now.
Signed-off-by: Sarita Patra <saritap@vmware.com>
Fixing IGMPv2 ANVL Conformance issue 3.10
As per RFC 2236 section 3, when the leave message is received at a querier,
it starts sending Query messages for "last Member Query Interval*query count"
During this time there should not be any querier to non-querier
transition and the same router needs to send the remaning queries.
Currently the code is handling this scenario only when leave is receive
for a group and the query is received for the same group.
But we need to handle it irrespective of group since the querier
election is based on interface and not group.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Deletion of pim interface(pim_if_delete) should
do the below things before cleanup.
1. Send a hello message with zero hold time.
2. Delete all the neighbors.
3. Close the pim socket.
Signed-off-by: Sarita Patra <saritap@vmware.com>
Issue:
==16837== Invalid read of size 8
==16837== at 0x17971C: pim_neighbor_find (pim_neighbor.c:431)
==16837== by 0x186439: join_timer_stop (pim_upstream.c:348)
==16837== by 0x186794: pim_upstream_del (pim_upstream.c:231)
==16837== by 0x189A66: pim_upstream_terminate (pim_upstream.c:1951)
==16837== by 0x17111B: pim_instance_terminate (pim_instance.c:54)
==16837== by 0x17111B: pim_vrf_delete (pim_instance.c:172)
==16837== by 0x4F1D6C8: vrf_delete (vrf.c:264)
==16837== by 0x19006F: pim_terminate (pimd.c:160)
==16837== by 0x1B2E4D: pim_sigterm (pim_signals.c:51)
==16837== by 0x4F08FA2: frr_sigevent_process (sigevent.c:130)
==16837== by 0x4F1A2CC: thread_fetch (thread.c:1771)
==16837== by 0x4ED4F92: frr_run (libfrr.c:1197)
==16837== by 0x15D81A: main (pim_main.c:176)
Root Cause:
In the pim_terminate flow, the interface is deleted
before the pim_interface clean up. Because of this,
the pim_interface is having garbage value.
Fix:
Release the pim interface memory and then delete the
interface.
Signed-off-by: Sarita Patra <saritap@vmware.com>
pim_mroute_socket_disable api is present but nowhere called.
This should be called when pim instance is terminated.
Fixed it.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
The command "show ip[v6] mroute" displaying group and source
field for every OIL.
Fix:
Display group and source for the first OIL only.
Signed-off-by: sarita patra <saritap@vmware.com>
If the upstream is freed in pim_upstream_del, then trying to
call pim_upstream_timers_stop will lead to accessing freed memory.
Fix:
Stop the timer only if upstream is not deleted.
Co-authored-by: Sarita Patra <saritap@vmware.com>
Co-authored-by: Mobashshera Rasool <mrasool@vmware.com>
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
The call to gm_update_ll checks for null pointers and
implies to SA that things could not be configured correctly
This is not true with the code flow. Remove the confusing code.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Zebra can be setup to use a value that is less than MULTIPATH_NUM.
When pimd connects to zebra, zebra will inform pim about the MULTIPATH_NUM
used. Let's use that value for figuring out our multipath value.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
When pim_upstream_inherited_olist_decide calls the api
pim_channel_add_oif, it can pass PIM_OIF_FLAG_PROTO_GM,
PIM_OIF_FLAG_PROTO_PIM and/or PIM_OIF_FLAG_PROTO_STAR.
Now a consider a case where PIM flag was already set
but STAR flag was not set and this api tries to set
both STAR + PIM and passes the same. The api pim_channel_add_oif
returns since it sees that PIM is already set without
setting the STAR flag.
So basically this will lead to issues in scenarios where for the
same OIF multiple flags(IGMP, PIM, STAR) needs to be set.
Fixing it for all combinations.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
The rpf lookup debug was not taking into account the fact that a prefix-list
might be applied and also we might need to make a choice between the two.
So let's give ourselves a bit more data.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
1. Removal of IPV6_HDRINCL option
2. Removal of IPv6 headers in TX
3. Addition of IPV6_PKTINFO and setting of source ipv6 address for TX.
Signed-off-by: Balaji Gurudoss <G_Balaji1@dell.com>
For show ip pim interface traffic cli, doing the below changes
1. Changing DEFUN to DEFPY
2. Move the whole code to a common api and modify it so that can
be reused for pimv6.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Moving pim_show_interface_traffic and pim_show_interface_traffic_single
to pim_cmd_common.c from pim_cmd.c to make it common to
pimd and pim6d.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Moving the common lines of pim_show_join_vrf and pim_show_join_vrf_all cli
in pim_cmd.c and pim6_cmd.c to pim_cmd_common.c file
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
the `show ip pim interface [x] traffic` command was deciding
to skip display of interfaces if they happened to be down at
that moment. This of course does not make a bunch of sense
to limit the output for a interface that may have sent data
in the past.
This fixes this test crash:
rnode = <lib.topogen.TopoRouter object at 0x7fc755be3880>, dut = 'c1', input_dict = {'c1': {'c1-l1-eth2': ['helloTx', 'helloRx']}}, output_dict = {'c1': {}}
def show_pim_intf_traffic(rnode, dut, input_dict, output_dict):
show_pim_intf_traffic_json = run_frr_cmd(
rnode, "show ip pim interface traffic json", isjson=True
)
output_dict[dut] = {}
for intf, data in input_dict[dut].items():
> interface_json = show_pim_intf_traffic_json[intf]
E KeyError: 'c1-l1-eth2'
/home/sharpd/frr8/tests/topotests/lib/pim.py:1496: KeyError
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
The pim_channel_oil_empty() function was setting
the pimreg if it ever existed for NULL comparison
but of course the pimreg device is never pulled back
out again when it was needed to be when the pimreg
is not present.
Commit: a5fa982256
broke this.
Fixes: #11368
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Moving the common lines of pim_show_nexthop_lookup cli
in pim_cmd.c and pim6_cmd.c to pim_cmd_common.c file
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Moving the common lines of pim_show_nexthop cli
in pim_cmd.c and pim6_cmd.c to pim_cmd_common.c file
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Moving the common lines of pim_show_neighbors_vrf_all cli
in pim_cmd.c and pim6_cmd.c to pim_cmd_common.c file
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Moving the common lines of pim_show_neighbors cli
in pim_cmd.c and pim6_cmd.c to pim_cmd_common.c file
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Moving the common lines of pim_local_membership cli
in pim_cmd.c and pim6_cmd.c to pim_cmd_common.c file
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Moving the common lines of pim_show_jp_agg cli
in pim_cmd.c and pim6_cmd.c to pim_cmd_common.c file
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Moving the common lines of pim_show_interface_vrf_all cli
in pim_cmd.c and pim6_cmd.c to pim_cmd_common.c file
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Moving the common lines of pim_show_interface cli
in pim_cmd.c and pim6_cmd.c to pim_cmd_common.c file
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Moving the common lines of pim_show_channel cli
in pim_cmd.c and pim6_cmd.c to pim_cmd_common.c file
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
The test for setting pimDesignatedRouterLocal was comparing
the result of pim_addr_cmp to non zero to say that the
pim_dr_addr and primary_address are the same. This is
not correct in that pim_addr_cmp returns 0 for being the
same, so the correct test is !pim_addr_cmp
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
PIM conformance test case 11.12 sends a register stop msg with
source address as 0. This should trigger a register stop for
all the upstreams. It is not happening as such because we are not
considering 0.0.0.0 source address for starg_handling.
Fixed it.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
All rp_info's are being saved in the pim->rp_list and the non prefix-list
rp's are supposed to be saved in table pim->rp_table. What was happening,
though, is that all the plists were being stored at the 224.0.0.0/4 node
of the tree(irrelevant to the fact that we should not be looking up the
non-prefix list rp's in the table) and since we can have multiple prefix lists
and only one rp_info stored at the 224.0.0.0/4 node of the tree, there can be situations
where the 224.0.0.0/4 node can be overwritten due to the order entered.
As such there exists situations where command enter ordering will cause
what we match to, change in pim_rp_find_match_group.
Fixes:
a) Do not store prefix list based rp_info's in the pim->rp_table
b) In pim_rp_find_match_group, ensure that the node lookup does
not correspond to a prefix list based node.
c) When in the situation there are both:
ip pim rp 4.5.6.7 224.0.0.0/16
ip pim rp 5.6.67.8 prefix-list FOO
ip prefix-list FOO permit 224.0.1.0/24
and we receive a group for 224.0.1.5, we were comparing the
224.0.0.0/16 to the 224.0.0.0/4 of the 5.6.67.8 group, when
FRR should have been comparing to entry that matched in the prefix-list
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
pimd is receiving v3 igmp packets on an interface that is setup as v2 and
causing the igmp group as configured on that interface to get a bit
wonky.
Add a check to receiving v3 packets and to drop the packet if the
igmp version configed on the interface is 2.
Fixes: #11105
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
PIM_IPV == 4 is removed form function pim_cmd_show_ip_multicast_helper
as pim_zlookup.c is available for pimv6 aswell.
Signed-off-by: Abhishek N R <abnr@vmware.com>
Implementing debug pimv6 zebra command for debugging about
the events from zebra that come up through the ZAPI.
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Implementing debug pimv6 packetdump send and recv coomands for debugging
of pimv6 packet sent and received which are dumped.
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Implementing pimv6 packets debug to information about packet generation for sending
and about packet handling from a received packet.
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Implementing debug pimv6 nht command for PIMv6 nexthop tracking.
It will display information about RPF lookups and information about when a nexthop changes.
debug pimv6 nht detial for for PIMv6 nexthop in detail.This is not enabled by default.
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
Added a new cli command "ip pim passive" in the interface context,
to disable sending of pim control packets on the interface.
Signed-off-by: sarita patra <saritap@vmware.com>
Added a new cli command "ip pim passive" in the interface context,
to disable sending of pim control packets on the interface.
Signed-off-by: sarita patra <saritap@vmware.com>
Fresh ground-up MLD implementation with subscriber-tracking for MLDv2.
Intended to be adapted for IPv4 and replace the IGMP implementation at a
later point.
Tested in ANVL, currently at 94/116. Some issues/TODOs are left in the
code as CPP_NOTICE markers, but the code is very much good enough to
proceed since otherwise we're blocked on overall PIM v6 progress.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
This is causing build issues on BSD by including (transitively)
`linux/mroute6.h` - try to address by disentangling the headers a bunch.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
The IPv6 `mrt6msg` kernel pseudo-header does not have a length field;
accessing what would be the IPv6 payload length reads zeroes.
Pass down the proper length and use that instead.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
