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Done with a combination of regex'ing and banging my head against a wall.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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If PIM had received a register packet with the Border Router
bit set, pimd would have crashed. Since I wrote this code
in 2015 and really have pretty much no memory of this and
no-one has ever reported this crash, let's just remove this
code.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Back when I put this together in 2015, ISO C11 was still reasonably new
and we couldn't require it just yet. Without ISO C11, there is no
"good" way (only bad hacks) to require a semicolon after a macro that
ends with a function definition. And if you added one anyway, you'd get
"spurious semicolon" warnings on some compilers...
With C11, `_Static_assert()` at the end of a macro will make it so that
the semicolon is properly required, consumed, and not warned about.
Consistently requiring semicolons after "file-level" macros matches
Linux kernel coding style and helps some editors against mis-syntax'ing
these macros.
Signed-off-by: David Lamparter <equinox@diac24.net>
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The memory type PIM_SPT_PLIST_NAME is specific to
SPT but we are going to store more prefix-list names
in pim, make it generic to allow for less confusion
in the future.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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These entries will be used over the subsequent commits for
1. vxlan-tunnel-termination handling - setup MDT to rx VxLAN encapsulated
BUM traffic.
2. vxlan-tunnel-origination handling - register local-vtep-ip as a
multicast source.
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
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indent.py `git ls-files | pcregrep '\.[ch]$' | pcregrep -v '^(ldpd|babeld|nhrpd)/'`
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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The FSF's address changed, and we had a mixture of comment styles for
the GPL file header. (The style with * at the beginning won out with
580 to 141 in existing files.)
Note: I've intentionally left intact other "variations" of the copyright
header, e.g. whether it says "Zebra", "Quagga", "FRR", or nothing.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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To the 'ip pim spt-switchover infinity-and-beyond' command
add 'prefix-list <PLIST>'. To the command.
Use this as the basis to deny (Not immediate switchover)
or permit (Immediate switchover), based upon matching
the group address and the prefix-list.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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SSM groups (232/8 or user configured SSM range) can exist in the same
multicast network as ASM groups. For such groups all RPT related state
machine operations have to be skipped as defined by section 4.8 of
RFC4601 -
1. Source registration is skipped for SSM groups. For SSM groups mroute
is setup on the FHR when a new multicast flow is rxed; however source
registration (i.e. pimreg join) is skipped. This will let the ASIC black
hole the traffic till a valid OIL is added to the mroute.
2. (*,G) IGMP registrations are ignored for SSM groups.
Sample output:
=============
fhr# sh ip pim group-type
SSM group range : 232.0.0.0/8
fhr# sh ip pim group-type 232.1.1.1
Group type: SSM
fhr# sh ip pim group-type 239.1.1.1
Group type: ASM
fhr#
Sample config:
=============
fhr(config)# ip pim ssm prefix-list ssm-ranges
fhr(config)#
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Reviewed-by: Donald Sharp <sharpd@cumulusnetworks.com>
Ticket: CM-15344
Testing Done:
1. SSM/ASM source-registration/igmp-joins.
2. On the fly multicast group type changes.
3. pim-smoke.
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Add pim Nexthop tracking feature 1st part where, specific RP or Source address (unicast address)
register with Zebra. Once nexthop update received from Zebra for a given address, scan RP or upstream
entries impacted by the change in nexthop.
Reviewed By: CCR-5761, Donald Sharp <sharpd@cumulusnetworks.com>
Testing Done: Tested with multiple RPs and multiple *,G entries at LHR.
Add new Nexthop or remove one of the link towards RP and verify RP and upstream nexthop update.
similar test done at RP with multiple S,G entries to reach source.
Signed-off-by: Chirag Shah <chirag@cumulusnetworks.com>
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Add the ability for PIM to send Join/Prunes as an
aggregated message instead of individual messages
for each S,G.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Anycast requires that the lo interface be associated with multiple
addresses. One is the anycast IP address (which is the same on all RPs
participating in RP redundancy) and the second is the unique IP address
that will be used as the router id by routing protocols.
To accomodate that we maintain a list of secondary addresses per-pim iface
and allow any of them to be the RP address. This lets the I_am_RP macro
succeed on anycast RPs.
Note that the support is limited i.e. we don't actually advertise a
secondary list to the neighbors. This is assuming the anycast IP will never
be used as a router id i.e. will never be an RPF neighbor.
Sample output:
==============
dell-s6000-04# sh ip pim interface lo
Interface : lo
State : up
Address : 100.1.1.1 (primary)
100.1.1.2
100.1.1.3
100.1.2.1
>>>>>>> SNIP >>>>>>>>>>>>>>>
dell-s6000-04# sh ip pim interface lo json
{
"lo":{
"name":"lo",
"state":"up",
"address":"100.1.1.1",
"index":1,
"lanDelayEnabled":true,
"secondaryAddressList":[
"100.1.1.2",
"100.1.1.3",
"100.1.2.1"
],
>>>>>>> SNIP >>>>>>>>>>>>>>>
dell-s6000-04#sh ip pim rp-info
RP address group/prefix-list OIF I am RP
100.1.2.1 224.0.0.0/4 lo yes
dell-s6000-04#
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Acked-by: Donald Sharp <sharpd@cumulusnetworks.com>
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1. Add support for mesh-group based configuration that is easy to apply
via automation. The older per-peer configuartion is temporarily hidden
and will be cleaned up later.
Sample config -
ip msdp mesh-group cumulus source 100.1.1.4
ip msdp mesh-group cumulus member 100.1.1.5
ip msdp mesh-group cumulus member 100.1.1.6
2. Added support for detail peer and sa-cache displays. Along with
filter keys.
3. Add json output for all the msdp displays.
With this commit basic support for anycast-RP with MSDP (in numbered
network is complete). Unnumbered support will be added separately.
Ticket: CM-13306
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Acked-by: Donald Sharp <sharpd@cumulusnetworks.com>
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This commit includes -
1. Maintaining SA cache with local and remote entries.
2. Local SA entries - there are two cases where we pick up these -
- We are RP and got a source-register from the FHR.
- We are RP and FHR and learnt a new directly connected source on a
DR interface.
3. Local entries are pushed to peers immediately on addition and
periodically. An immediate push is also done when peer session is
established.
4. Remote SA entries - from other peers in the mesh group and passed
peer-RPF checks.
5. Remote entries are aged out. No other way to del them
currently. In the future we may add a knob to flush entries on
peer-down.
Testing done -
Misc topologies with CL routers plus basic interop with another vendor (
we can process their SA updates and they ours).
Sample output -
root@rp:~# vtysh -c "show ip msdp sa"
Source Group RP Uptime
33.1.1.1 239.1.1.2 local 00:02:34
33.1.1.1 239.1.1.3 local 00:02:19
44.1.1.1 239.1.1.4 100.1.3.1 00:01:12
44.1.1.1 239.1.1.5 100.1.3.1 00:00:55
root@rp:~#
Ticket: CM-13306
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Acked-by: Donald Sharp <sharpd@cumulusnetworks.com>
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This commit includes the following changes -
1. Support for MSDP peer DB (hash and sorted list).
2. Support for the following timers - keepalive, connect-retry, hold.
3. TCP session management (lower-ip is active, higher-ip is passive).
4. MSDP KA packet rx/tx.
5. Limited temporary config (will be replaced with the more automation
friendly RP-set).
Testing done -
Peer bringup/deletion (including interop with another vendor)
Sample out -
root@dell-s6000-04:~# sudo vtysh -c "show ip msdp peer"
Peer Local Mesh-group State Uptime
100.1.1.1 100.1.2.1 default established 00:07:27
100.1.3.1 100.1.2.1 default established 00:31:50
root@dell-s6000-04:~#
Coming soon -
1. part-2: SA cache management.
2. part-3: SPT setup using source in SA cache.
3. part-4: CLI cleanup.
Ticket: CM-13306
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Acked-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Signed-off-by: Daniel Walton <dwalton@cumulusnetworks.com>
Reviewed-by: CCR-5173
Ticket: CM-12819
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Allow the user to specify multiple rp commands.
'ip pim rp A.B.C.D' -> translates to 'ip pim rp A.G.C.D 224.0.0.0/24'
ip pim rp A.B.C.D A.B.C.D/M
First is the rp, second is the group with mask.
Groups and masks cannot be over each other except 224.0.0.0/24 which
is the fallback if used.
Ticket: CM-7860
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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This is a rather large mechanical commit that splits up the memory types
defined in lib/memtypes.c and distributes them into *_memory.[ch] files
in the individual daemons.
The zebra change is slightly annoying because there is no nice place to
put the #include "zebra_memory.h" statement.
bgpd, ospf6d, isisd and some tests were reusing MTYPEs defined in the
library for its own use. This is bad practice and would break when the
memtype are made static.
Acked-by: Vincent JARDIN <vincent.jardin@6wind.com>
Acked-by: Donald Sharp <sharpd@cumulusnetworks.com>
[CF: rebased for cmaster-next]
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Signed-off-by: Christian Franke <chris@opensourcerouting.org>
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