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pimd: PIM not sending register packets after changing from non DR to DR
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Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Effectively a massive search and replace of
`struct thread` to `struct event`. Using the
term `thread` gives people the thought that
this event system is a pthread when it is not
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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When the router is non dr for an interface, it installs mroute to drop
the packets from directly connected source. This was done to avoid packets
coming to cpu as nocache hit. Later when it gets change from non-DR to DR,
these entries are not cleared. So the packets are still dropped.
This causes register packets not getting generated.
So cleaning up the mroute entries and channel oil without
upstream reference which was created to drop.
Co-authored-by: Saravanan K <saravanank@vmware.com>
Signed-off-by: Sai Gomathi N <nsaigomathi@vmware.com>
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Modify pim_neighbor_find() API to find the neighbor
in neighbor secondary list.
Signed-off-by: Sarita Patra <saritap@vmware.com>
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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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Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
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Signed-off-by: sarita patra <saritap@vmware.com>
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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>
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Signed-off-by: sarita patra <saritap@vmware.com>
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Within one Address List Hello option, all the addresses MUST be of
the same address family. It is not permitted to mix IPv4 and IPv6
addresses within the same message. In addition, the address family
of the fields in the message SHOULD be the same as the IP source and
destination addresses of the packet header.
Signed-off-by: sarita patra <saritap@vmware.com>
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The int return value is never used. Modify the code
base to just return a void instead.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Problem Statement:
==================
pim maintains two counters hello tx and hello rx at interface level.
At present pim needs to send the hello message prior to other pim
message as per RFC. This logic is getting derived from the tx hello
counters. So when a new neighbor is added, tx counters are set to
zero and then based on this, it is further decided to send hello in
pim_hello_require function.
Fix:
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Separating the hello statistics and the logic to decide when to send hello
based on a new flag. pim_ifstat_hello_sent will be used to note down
the hello stats while a new flag is added to decide whether to send hello
or not if it is the first packet to a neighbor.
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
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Co-authored-by: Sarita Patra <saritap@vmware.com>
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
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*: make our own assert() actually work
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Rewrite the BFD integration code to use the new library.
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
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No point in having pimd use zassert() while everything else uses plain
assert().
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Replace all lib/thread cancel macros, use thread_cancel()
everywhere. Only the THREAD_OFF macro and thread_cancel() api are
supported. Also adjust thread_cancel_async() to NULL caller's pointer (if
present).
Signed-off-by: Mark Stapp <mjs@voltanet.io>
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pimd: When DR becomes non DR, Still sends register packets to RP
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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>
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RCA:
It has asserted because during neighbor delete on a interface,
pim_number_of_nonlandelay_neighbors count has become less less than 0.
This was due to not updating the count when hello option changed.
Fix:
During hello option update, check and increment or decrement when this option changes.
Signed-off-by: Saravanan K <saravanank@vmware.com>
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FINISH IT
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Just keep the code cool.
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
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Have the prefix_free code take a double pointer to free the data.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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PIM Core was seen during EVPN PIM Testing beacuse of NULL
Interface pointer
Signed-off-by: Satheesh Kumar K <sathk@cumulusnetworks.com>
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When a new pim neighbor comes up, we need to go through and
mark nexthops that we have received from zebra for reachability
tracking so we can refigure stuff. If we pass in the new neighbor
we can limit the search to those nexthops out the interface that
the new neighbor has come up.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Create a `struct pim_router` and move the thread master into it.
Future commits will further move global varaibles into the pim_router
structure.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Signed-off-by: David Lamparter <equinox@diac24.net>
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Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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Convert, where appropriate, the zlog_err functions to zlog_ferr
for the LIB_ERR_XXX enums
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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When shutting down pim, ensure that we cleanup bfd memory
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Remove from pim unnecessary alloc failure testing
as that alloc failure will cause an assert.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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We know the vrf that we are in when we need to initiate a
rescan of the rpf cache. So pass it in and use that information.
This should help the rescan at scale with several vrf's cutting
out a lot of unnecessary work.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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We do not really need a level of abstraction to call a particular function.
Just call it.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Convert the list_delete(struct list *) function to use
struct list **. This is to allow the list pointer to be nulled.
I keep running into uses of this list_delete function where we
forget to set the returned pointer to NULL and attempt to use
it and then experience a crash, usually after the developer
has long since left the building.
Let's make the api explicit in it setting the list pointer
to null.
Cynical Prediction: This code will expose a attempt
to use the NULL'ed list pointer in some obscure bit
of code.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Move the upstream_list, hash and wheel into 'struct pim_instance'
Remove all pimg to pim in pim_upstream
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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Signed-off-by: Donald Sharp <sharpd@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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pimd: pim bfd support
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All PIM Neighbors for a given pim interface is registered with
BFD.
Upon receiving BFD status down event, PIM Neighbor with BFD info is deleted.
Add pim bfd configuraiton (CLI) per interface, '[no] ip pim bfd'
Testing Done:
Configure BFD under PIM interface on all neighbor routers,
check bfd sessions up, remote end unconfigure BFD, results in BFD session down.
Previous state was UP to New state DOWN, results in PIM neighbor delete behind
that particular pim interface.
Pim-smoke Results:
Ran 94 tests in 7409.680s
FAILED (SKIP=8, failures=2)
Signed-off-by: Chirag Shah <chirag@cumulusnetworks.com>
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When we add a thread pointer to thread_add_XXX functions
when the specified function is called, thread.c is setting
the thread pointer to NULL. This was causing pim to
liberally pull it's zassert grenade pin's.
Additionally clean up code to not set the NULL pointer.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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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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The way thread.c is written, a caller who wishes to be able to cancel a
thread or avoid scheduling it twice must keep a reference to the thread.
Typically this is done with a long lived pointer whose value is checked
for null in order to know if the thread is currently scheduled. The
check-and-schedule idiom is so common that several wrapper macros in
thread.h existed solely to provide it.
This patch removes those macros and adds a new parameter to all
thread_add_* functions which is a pointer to the struct thread * to
store the result of a scheduling call. If the value passed is non-null,
the thread will only be scheduled if the value is null. This helps with
consistency.
A Coccinelle spatch has been used to transform code of the form:
if (t == NULL)
t = thread_add_* (...)
to the form
thread_add_* (..., &t)
The THREAD_ON macros have also been transformed to the underlying
thread.c calls.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
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