Added this api to fill all multicast group address based on IP version.
For PIMv4 its 224.0.0.0/4, for PIMv6 its FF00::0/8.
Changed the code where its being used currently.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Pass pim_addr as parameter for rp address to accomodate ipv6.
Modifying pim_rp_cmd_worker and pim_no_rp_cmd_worker function
parameters from in_addr to pim_addr.
Changes in the caller functions are done as well to make it work
for IPv6.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
1. Return value of this function pim_rp_del_config is nowhere used.
So made it as a void function.
2. Paramater const char *rp is first converted to string from prefix
in the caller and then back to prefix in this api pim_rp_del_config.
Fixed it by directly passing the address instead of string.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
1. Moving the processing of the above command to an api.
2. Change DEFUN to DEPFY
3. Make the api common for pimv4 and pimv6 processing.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Modify the apis pim_process_rp_cmd and pim_process_no_rp_cmd
to accomodate ipv4 as well as ipv6.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Changes correct typo in JSON output for IGMP interface statistics show
command from "leaveV3" to "leaveV2".
Signed-off-by: David Schweizer <dschweizer@opensourcerouting.org>
Problem Statement:
=================
PIM Logs are coming at interval of 1 minute although pim
is not enabled.
Root Cause Analysis:
====================
By default, RCPM configures the PIM debugs when router comes up
via script. The product cannot disable PIM even though it is not required.
Hence moving these logs under a new debug option which will not be
enabled by default.
Fix:
====
Added a new option "detail" in the cli:
debug pim nht detail
Co-author: Mobashshera Rasool <mrasool@vmware.com>
Signed-off-by: Sai Gomathi <nsaigomathi@vmware.com>
We can use PIMADDR_ANY instead of INADDR_NONE to initalize rp->rpf_addr
when there is no rp configured for group_all.
Signed-off-by: sarita patra <saritap@vmware.com>
Adding the file pim6_cmd.h and pim6d_cmd.c as the base changes
for implementing the CLI changes
Removed the pim_cmd_init from the stub file.
Co-authored-by: Sarita Patra <saritap@vmware.com>
Co-authored-by: Abhishek N R <abnr@vmware.com>
Co-authored-by: Sai Gomathi N <nsaigomathi@vmware.com>
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Currently the code is expecting the TOS value for received
packet to be 0xC0 and hence it is discarding packets having
TOS value other than 0xc0.
We need to make sure that we are sending the packet with
TOS 0xC0 and while receiving we can allow any TOS value.
Let's follow Postel's law.
Checked Cisco behavior as well. It also accepts all TOS values.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
224.0.0.0/24 cannot be used by igmp since this is reserved
for routing protocols and other low-level topology discovery or
maintenance protocols.
Fixes: #10614
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
The pim_upstream data structure has a ref count that is
not properly being incremented/decremented and when an
instance is removed this is causing crashes because timers
are still popping afterwords on data structures that are
now freed.
Since getting the ref count code is extremely hard and
we know that this crash is happening, add a bit of code
to prevent the timers from popping at all when we go
through and free up other data structures that we
are pointing at.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This creates `pim6_stubs.c`, which is intended to temporarily provide
stubbed-out definitions of some functions we don't have yet for IPv6.
This makes pim6d compile without the `PIM_V6_TEMP_BREAK` hack, and is
very important as an intermediate step to get a working environment for
further work.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
This is just hitting the pim_mroute code with a hammer until it doesn't
print warnings anymore. This is NOT quite tested or working yet, it
just compiles.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Just fixing a bunch of compiler errors, this will NOT actually configure
IPv6 PIM properly.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Since `pim_sgaddr` is `pim_addr` now, that causes a whole lot of fallout
anywhere S,G pairs are handled.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
These are sprinkled relatively widely through the PIM codebase, so for
the time being reduce the "compiler warning surface" by moving them
forward to proper types without actual implementations.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
`show ip pim assert` shows S,G ifchannel information even when
there is no information available about the assert process.
Fix the code to not dump non-interesting cases.
Fixes: 10462
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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.
Fixes: #10422
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
In all places that pim_nht_bsr_del is called, the code
needs to not unregister if the current_bsr is INADDR_ANY.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
I'm now seeing in my log file:
2022/01/28 11:20:05 PIM: [Q0PZ7-QBBN3] attempting to delete nonexistent NHT BSR entry 0.0.0.0
2022/01/28 11:20:05 PIM: [Q0PZ7-QBBN3] attempting to delete nonexistent NHT BSR entry 0.0.0.0
2022/01/28 11:20:06 PIM: [Q0PZ7-QBBN3] attempting to delete nonexistent NHT BSR entry 0.0.0.0
When I run pimd. Looking at the code there are 3 places where pim_bsm.c removes the
NHT BSR tracking. In 2 of them the code ensures that the address is already setup
in 1 place it is not. Fix.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
XPATH_MAXLEN denotes the maximum length of an XPATH. It does not make
sense to allocate a buffer intended to contain an XPATH with a size
larger than the maximum allowable size of an XPATH. Consequently this PR
removes buffers that do this. Prints into these buffers are now checked
for overflow.
Signed-off-by: Quentin Young <qlyoung@nvidia.com>
VRF name should not be printed in the config since 574445ec. The update
was done for NB config output but I missed it for regular vty output.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
Problem Statement:
==================
(rcv1)-----A----B---C
v3 enabled with src 90.0.0.1
|
(rcv2)--
v2 enable with src none
rcv1 sends the packet in INCLUDE mode, rcv2 sends the IGMPv2 report
and PIM convers this report into exclude mode.
As per the state machine the group structure was
getting added and deleted. As group gets deleted the mroute for 90.0.0.1
and recreated back.
This effects the end to end trafiic.
Root Cause Analysis:
====================
As per state machine
INCLUDE (A) IS_EX (B) EXCLUDE (A*B,B-A) (B-A)=0
Delete (A-B)
Group Timer=GMI
EXCLUDE (X,Y) TO_EX (A) EXCLUDE (A-Y,Y*A) (A-X-Y)=Group Timer
Delete (X-A)
Delete (Y-A)
Send Q(G,A-Y)
Group Timer=GMI
The above equations were getiing calulated for IP address
90.0.0.1 and 0.0.0.0
This results in group creation deletion.
Fix:
====
As per RFC 4604.
drop the exclude mode, IGMP reports, if destnation group is
SSM based.
EXCLUDE
mode does not apply to SSM addresses, and an SSM-aware router will
ignore MODE_IS_EXCLUDE and CHANGE_TO_EXCLUDE_MODE requests in the SSM
range,
Signed-off-by: Abhishek N R <abnr@vmware.com>
Signed-off-by: Vishal Dhingra <rac.vishaldhingra@gmail.com>
Problem Statement:
==================
(rcv1)-----A----B---C
v3 enabled with src 90.0.0.1
|
(rcv2)--
v3 enable with src none
rcv1 sends the packet in INCLUDE mode, rcv2 sends the IGMP report
in exclude mode. As per the state machine the group structure was
getting added and deleted. As group gets deleted the mroute for 90.0.0.1
and recreated back.
This effects the end to end trafiic.
Root Cause Analysis:
====================
As per state machine
INCLUDE (A) IS_EX (B) EXCLUDE (A*B,B-A) (B-A)=0
Delete (A-B)
Group Timer=GMI
EXCLUDE (X,Y) TO_EX (A) EXCLUDE (A-Y,Y*A) (A-X-Y)=Group Timer
Delete (X-A)
Delete (Y-A)
Send Q(G,A-Y)
Group Timer=GMI
The above equations were getiing calulated for IP address
90.0.0.1 and 0.0.0.0
This results in group creation deletion.
Fix:
====
As per RFC 4604.
drop the exclude mode, IGMP reports, if destnation group is
SSM based.
EXCLUDE
mode does not apply to SSM addresses, and an SSM-aware router will
ignore MODE_IS_EXCLUDE and CHANGE_TO_EXCLUDE_MODE requests in the SSM
range.
Signed-off-by: Abhishek N R <abnr@vmware.com>
Signed-off-by: Vishal Dhingra <rac.vishaldhingra@gmail.com>
These really don't serve much of a purpose, especially with how
inconsistently they're used.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Only pim_sgaddr uses are covered by this since regular in_addr is still
used for singular addresses, so only a part of pim_inet4_dump calls are
gone with this.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Renamed frr-igmp.yang to frr-gmp.yang, igmp to gmp container.
to support IGMP and MLD protocol.
frr-gmp.yang, created a list of address family under mgmd
container. For PIMV4 the key is IPV4, where as for PIMV6
the key is IPV6. This is done for PIMV6 development.
This commit will have all the northbound changes to support
IPV4 address family.
Signed-off-by: sarita patra <saritap@vmware.com>
Need a separate constant that is IPv6 when needed. Also assign the
whole struct rather than just s_addr.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Replaces comparison against INADDR_ANY, so we can do IPv6 too.
(Renamed from "pim_is_addr_any" for "pim_addr_*" naming pattern, and
type fixed to bool.)
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
... and replace with `%pSG` printfrr specifier. This actually used a
static buffer in the formatting function, so subsequent formatting would
overwrite earlier uses.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
frr-pim.yang, created a list of address family under pim
container. For PIMV4 the key is IPV4, where as for PIMV6
the key is IPV6. This is done for PIMV6 development.
This commit will have all the northbound changes to support
IPV4 address family.
Signed-off-by: sarita patra <saritap@vmware.com>
Fix the code as per RFC 2236 section 2.5:
Note that IGMP messages may be longer than 8 octets, especially
future backwards-compatible versions of IGMP. As long as the Type is
one that is recognized, an IGMPv2 implementation MUST ignore anything
past the first 8 octets while processing the packet. However, the
IGMP checksum is always computed over the whole IP payload, not just
over the first 8 octets.
Fixes: #10331
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
As per test case IGMP Conformance test case 5.6, report
messages longer than 8 octets should be accepted to support
future-backward compatibilty.
Fix the code as per RFC 2236 section 2.5:
Note that IGMP messages may be longer than 8 octets, especially
future backwards-compatible versions of IGMP. As long as the Type is
one that is recognized, an IGMPv2 implementation MUST ignore anything
past the first 8 octets while processing the packet. However, the
IGMP checksum is always computed over the whole IP payload, not just
over the first 8 octets.
Fixes: #10331
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Mostly just 2 sed calls:
- `sed -e 's%struct prefix_sg%pim_sgaddr%g'`
- `sed -e 's%memset(&sg, 0, sizeof(pim_sgaddr));%memset(\&sg, 0, sizeof(sg));%g'`
Plus a bunch of fixing whatever that broke.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Just putting the infrastructure in place and having it disabled is
actually good progress here; have the compiler make itself useful and
tell us what we have to do to get the basics right.
(The next commit will cause a *lot* of compile errors as soon as
`PIM_V6_TEMP_BREAK` is set; but there is no reason to force everything
into a single step here.)
To enable `pim_addr = in6_addr`, run `make PIM_V6_TEMP_BREAK=1` (remove
previous compile results with `rm pimd/pim6d-*.o`)
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Depending on whether we're compiling pimd or pim6d, these types take on
the appropriate AF being used.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Since this is only used in very few places, moving it out of the way is
reasonable. (`%pSG` will be pim_sgaddr)
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
This newborn pim6d is essentially an empty husk, but it does build
without warnings or errors and has the build system integration prepared
and working.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Modifying the members of pim_interface which are to be used
for both IPv4 and IPv6 to common names(for both MLD and IGMP).
Issues: #10023
Co-authored-by: Mobashshera Rasool <mrasool@vmware.com>
Co-authored-by: Sarita Patra <saritap@vmware.com>
Signed-off-by: Sai Gomathi <nsaigomathi@vmware.com>
Changed struct in_addr source_addr to struct PIM_ADDR source_addr
which is to be used in both IPv4 and IPv6(Both MLD and IGMP).
Reviewed-by: Mobashshera Rasool <mrasool@vmware.com>
Signed-off-by: sarita patra <saritap@vmware.com>
Changed struct in_addr upstream_addr and struct in_addr upstream_register
to struct PIM_ADDR upstream_addr and struct PIM_ADDR upstream_register
which are to be used in both IPv4 and IPv6(Both MLD and IGMP).
Reviewed-by: Mobashshera Rasool <mrasool@vmware.com>
Signed-off-by: sarita patra <saritap@vmware.com>
Changed struct in_addr last_lookup to struct PIM_ADDR last_lookup
which is to be used in both IPv4 and IPv6(Both MLD and IGMP).
Reviewed-by: Mobashshera Rasool <mrasool@vmware.com>
Signed-off-by: sarita patra <saritap@vmware.com>
Changed struct in_addr group_addr to struct PIM_ADDR group_addr
in struct igmp_group which is to be used in
both IPv4 and IPv6(Both MLD and IGMP).
Reviewed-by: Mobashshera Rasool <mrasool@vmware.com>
Signed-off-by: sarita patra <saritap@vmware.com>
Changed struct in_addr address to struct pim_addr in struct
pim_iface_upstream_switch which is to be used in both IPv4
and IPv6(Both MLD and IGMP).
Reviewed-by: Mobashshera Rasool <mrasool@vmware.com>
Signed-off-by: sarita patra <saritap@vmware.com>
Changed struct in_addr group to struct pim_addr group
which is to be used in both IPv4 and IPv6(Both MLD and IGMP).
Reviewed-by: Sarita Patra <saritap@vmware.com>
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Changed struct in_addr source_addr to pim_addr source_addr
in struct igmp_source which is to be used in
both IPv4 and IPv6(Both MLD and IGMP).
Reviewed-by: Sarita Patra <saritap@vmware.com>
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Changed struct in_addr source_addr to pim_addr source_addr
in struct igmp_join which is to be used in
both IPv4 and IPv6(Both MLD and IGMP).
Reviewed-by: Sarita Patra <saritap@vmware.com>
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Based on compiler option, pim_addr will be changed to in_addr
or in6_addr for pimd and pim6d respectively.
Reviewed-by: Sarita Patra <saritap@vmware.com>
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
This change is to accomodate IPv6 and IPv4 in the same code.
Based on pimd or pim6d, this will be compiled.
Reviewed-by: Sarita Patra <saritap@vmware.com>
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Changed struct in_addr ifassert_winner to pim_addr
which will be used in both IPv4 and IPv6(Both MLD and IGMP).
Reviewed-by: Sarita Patra <saritap@vmware.com>
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Added apis which will be decided on compile time
for pimd and pim6d daemon
Reviewed-by: Sarita Patra <saritap@vmware.com>
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
PIM_ADDR will be controlled at compile time for IPv4 and IPv6.
in_addr and in6_addr will be compiled for the respective daemons.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
The zlog_warn used to be bounded by a debug guard
but the debug guard was removed but the code was
never fixed up to remove the open and close paranthesis.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Currently, it is possible to rename the default VRF either by passing
`-o` option to zebra or by creating a file in `/var/run/netns` and
binding it to `/proc/self/ns/net`.
In both cases, only zebra knows about the rename and other daemons learn
about it only after they connect to zebra. This is a problem, because
daemons may read their config before they connect to zebra. To handle
this rename after the config is read, we have some special code in every
single daemon, which is not very bad but not desirable in my opinion.
But things are getting worse when we need to handle this in northbound
layer as we have to manually rewrite the config nodes. This approach is
already hacky, but still works as every daemon handles its own NB
structures. But it is completely incompatible with the central
management daemon architecture we are aiming for, as mgmtd doesn't even
have a connection with zebra to learn from it. And it shouldn't have it,
because operational state changes should never affect configuration.
To solve the problem and simplify the code, I propose to expand the `-o`
option to all daemons. By using the startup option, we let daemons know
about the rename before they read their configs so we don't need any
special code to deal with it. There's an easy way to pass the option to
all daemons by using `frr_global_options` variable.
Unfortunately, the second way of renaming by creating a file in
`/var/run/netns` is incompatible with the new mgmtd architecture.
Theoretically, we could force daemons to read their configs only after
they connect to zebra, but it means adding even more code to handle a
very specific use-case. And anyway this won't work for mgmtd as it
doesn't have a connection with zebra. So I had to remove this option.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
Problem:
=======
Generate query once cli is generating IGMPv2 report for IGMPv3 enabled interface
Description:
===========
If the version is not specified in the cli, it was taking version 2 as default
Fix:
===
If the version is not specified in the cli along with ip igmp generate-query-once,
the default will be the version enabled on that interface.
Signed-off-by: nsaigomathi <nsaigomathi@vmware.com>
Modifying name of struct igmp_sock to struct gm_sock, which is to be used
by both IPv4 and IPv6(for both MLD and IGMP).
Co-authored-by: Mobashshera Rasool <mrasool@vmware.com>
Co-authored-by: Sarita Patra <saritap@vmware.com>
Signed-off-by: Sai Gomathi <nsaigomathi@vmware.com>
Modifying name of struct igmp_group to struct gm_group, which is to be used
by both IPv4 and IPv6(for both MLD and IGMP).
Co-authored-by: Mobashshera Rasool <mrasool@vmware.com>
Co-authored-by: Sarita Patra <saritap@vmware.com>
Signed-off-by: Sai Gomathi <nsaigomathi@vmware.com>
Modifying name of struct igmp_source to struct gm_source, which is to be used
by both IPv4 and IPv6(for both MLD and IGMP).
Co-authored-by: Mobashshera Rasool <mrasool@vmware.com>
Co-authored-by: Sarita Patra <saritap@vmware.com>
Signed-off-by: Sai Gomathi <nsaigomathi@vmware.com>
Fix:
====
Modifying name of struct igmp_join to struct gm_join, which is to be used
by both IPv4 and IPv6(for both MLD and IGMP).
Co-authored-by: Abhishek N R abnr@vmware.com
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
Modifying the members of pim_interface which are to be used
for both IPv4 and IPv6 to common names(for both MLD and IGMP).
Issue: #10023
Co-authored-by: Mobashshera Rasool <mrasool@vmware.com>
Signed-off-by: Sai Gomathi <nsaigomathi@vmware.com>
RCA: When upstream transition from Joined to NotJoined due to SGRpt
prune, then only SGRpt prune was sent and SG Prune is missed.
Fix: Send SG Prune towards source as well as SGRpt prune towards RP.
Signed-off-by: sarita patra <saritap@vmware.com>
Since f60a1188 we store a pointer to the VRF in the interface structure.
There's no need anymore to store a separate vrf_id field.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
Problem Statement:
==================
on rp_change, PIM processes all the upstream in a loop and for selected
upstreams PIM has to send join/prune based on the RPF changed.
join and prune packets are not getting aggregated in a single packet.
Root Cause Analysis:
====================
on pim_rp_change pim_upstream_update() gets called for selected upstreams.
This API calculates to whom it has to send join and to whom it has to
send prune via API pim_zebra_upstream_rpf_changed(). This API peprares
the upstream_switch_list list per interface and inserts the group and
sources.
Now PIM is still in the pim_upstream_update() API context, i.e PIM
is still processing the same upstream. In the last there is a
call to pim_zebra_update_all_interfaces() which processes the
upstream_switch_list list, sends the packets out and clears the list.
Fix:
====
Don't process the upstream_switch_list in the upstream context.
process all the upstreams prepare the upstream_switch_list and then
process in one go. This will club all the S,G entries.
It also saves list cleanup with respect to memory allocation and
deallocation multiple times.
Signed-off-by: Vishal Dhingra <rac.vishaldhingra@gmail.com>
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
`pim_ifchannel_ifjoin_switch()` changes flags that `pim_forward_stop()`
looks at. This leads to data flow continuing until we have some reason
to sync state again.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
rp-count==0 isn't a broken BSM, it just means the BSR no longer has any
Candidate RPs for the group range. Previous behavior is badly mistaken
since it stops processing the entire packet.
Fix to correctly remove group range on rp-count==0 and continue
processing remainder of the packet.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
