To match the API behavior, and as it is more useful to have an entry
age than its time last probe.
Type: fix
Change-Id: I07680cd713d0d2b6208a58208b032af7f6a92825
Signed-off-by: Maxime Peim <mpeim@cisco.com>
Using the source address selection algorithm to determine the best source
of an NS for address resolution risks incompatible behavior.
It may choose a source address that is off-link to the other host.
Which may drop it.
A safer approach is to always use the link-local address as the SA.
It's recommended to pick a source that an application will later use,
as VPP is mostly a router, that rarely applies. And regardlessly we have
no mechanism to signal from an application that triggered address resolutiuon
what source address it intends to use.
Type: fix
Change-Id: I3c5de66e41505f3682767706ef1195a20e4f0e54
Signed-off-by: Ole Troan <otroan@employees.org>
Flushing the neighbor cache was only available through API.
Add CLI command. Either flushes whole table (IP4,IP6)
or all neighbors on specified interface.
Type: improvement
Change-Id: Ia8c68fb032a2dfd940a136edc2aee80db5c37685
Signed-off-by: Ole Troan <otroan@employees.org>
There is an API call to change neighbor database configuration (i.e.
limit on peer number, aging, and recycling). With this change, make
getting current values of these settings available via the API.
Type: improvement
Change-Id: Ie9394e086b68cf9b28ad98dea162f203f8043cbb
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
The order of the parameters when calling the ip_neighbor_probe_dst for
an aged neighbor is wrong and given that it runs on the master thread,
probes for IPv6 neighbors were never sent, leading to a certain neighbor
strike out and death and its removal from the neighbor cache.
Change-Id: Ic021bd0ece05bd2c1c6ab90eab0e2dc27cb10360
Type: fix
Fixes: fd2417b2a4
Signed-off-by: Sergio Gonzalez Monroy <monroy@anapaya.net>
To allow a more flexible throttling configuration, the number of bits
used in the throttling bitmap can be chosen.
Type: improvement
Signed-off-by: Maxime Peim <mpeim@cisco.com>
Change-Id: I7bfe391dd64729011b03f3e5b89408dfc340e036
Delete redundant help information in ip neighbor's
cli. There is no code implementation about fib-id and
proxy in the cli's subsequent process.
Type: fix
Signed-off-by: Huawei LI <lihuawei_zzu@163.com>
Change-Id: I1e276aad030409e3f2f62fee489ea95d316e67b5
Mark arp packet as locally originated when probing/replying and don't apply any
arp-term logic against it.
Type: fix
Signed-off-by: Stanislav Zaikin <zstaseg@gmail.com>
Change-Id: I305ff5cac8cac456decf92f21b961aa4ce286079
Type: improvement
plus the addition of the 'thorttle' counter of IP6.
Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: Ic845247a9f3288caa755c33e79ae2eb6d2029d09
Type: fix
When the local MAC address of an interface changes the rewrite strings
of all adjacency types need to be updated - this patch fixes the missing
case of incomplete adjacencies.
I moved the update of all adj types into the adj module, since if the
complete adjs were done by the ip-neighbour module and incomplete ones
by adj module, that would mean two walks of the adj DB, as it is not
possible to walk only a specific type.
UT is updated to include the missing case.
Signed-off-by: Neale Ranns <neale@graphiant.com>
Signed-off-by: Ivan Shvedunov <ivan4th@gmail.com>
Change-Id: I36af94976c645bdd0d4d3bc0093b24d7d077e9d7
The function ip4_neighbor_advertise may be called with NULL addr. In
that case, it looks up addr from fib by calling fib_sas4_get which
returns true or false to indicate whether there is an ip address
associated with the interface or not. But the caller to fib_sas4_get
does not check the return code and blindly assumes there is always an
ip address associated with the interface. As a result, it ends up
sending GARP to the bogus ip address if there is no ip address
associated with the interface.
Type: fix
Signed-off-by: Steven Luong <sluong@cisco.com>
Change-Id: I7aa0270766c3943ed8ca8f8a092cae34567fd30e
trajectory trace has been broken for a while because we used to save the
buffer trajectory in a vector pointed to in opaque2. This does not work
well when opaque2 is copied (eg. because of a clone) as 2 buffers end up
sharing the same vector.
This dedicates a full cacheline in the buffer metadata instead when
trajectory is compiled in. No dynamic allocation, no sharing, no tears.
Type: refactor
Change-Id: I6a028ca1b48d38f393a36979e5e452c2dd48ad3f
Signed-off-by: Benoît Ganne <bganne@cisco.com>
Replace clib_warning with vlog_log_debug when sending garp. There is nothing
to alert/warn the operator about sending garp. vlib_log is more appropriate.
Type: fix
Signed-off-by: Steven Luong <sluong@cisco.com>
Change-Id: Ib88a2b46d2ab8b3c35162538ead0dd0983fb7093
Type: fix
- the CLI was broken when a nh-table-id was present, since it overwrote
the next-hop address
- bouncing interface state stacked the adjacencies on the tunnel's
destination (which is all zeros)
- don't crash in the switch path if the interface has no hw-address
Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: I1ba9fdc9b2185899b753a2d40f23afa847a3ef4f
Type: feature
Use the FIB to provide SAS (in so far as it is today)
- Use the glean adjacency as the record of the connected prefixes
= there's a glean per-{interface, protocol, connected-prefix}
- Keep the glean up to date with whatever the recieve host prefix is
(since it can change)
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
Change-Id: I0f3dd1edb1f3fc965af1c7c586709028eb9cdeac
Type: fix
In ip6_neighbor_probe(), if the interface is not enabled for ip6,
return NULL and skip trying to build a packet.
If the interface is not enabled, its mcast adjacency will be set to
~0 and a seg fault will ensue.
Change-Id: I825c9f40a0d5b2a77f788ac8dbd618138706383d
Signed-off-by: Matthew Smith <mgsmith@netgate.com>
Before this patch it was not allowed to replace
a dynamic ARP entry with a static one with the
same mac-address.
Type: fix
Signed-off-by: Vladimir Isaev <visaev@netgate.com>
Change-Id: I6cfc0e510ffdf141c61874288f11a60395182374
Fix the issue that vppctl show ip4{6} neighbor [interface] command can't
show entries correctly, example: both ip4 and ip6 entries can be shown
with command:
vppctl show ip4 neighbor.
Type: fix
Signed-off-by: Michael Yu <michael.a.yu@nokia-sbell.com>
Change-Id: I229368b71cd285adce994c8290cc9d7e4c4f5aa6
Signed-off-by: Michael Yu <michael.a.yu@nokia-sbell.com>
Add vpp specific properties to ip addresses for use in the api.
.vapi_af -- returns [ADDRESS_IP4, ADDRESS_IP6]
.vapi_af_name -- returns the string ['ip4', 'ip6']
Update tests to demonstrate usage.
Type: feature
Change-Id: I43447a1522769d99f89debdc714c51700068d771
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
Type: feature
DB replace is implemented with a mark and sweep algorithm (just the the
FIB)
Signed-off-by: Neale Ranns <nranns@cisco.com>
Change-Id: I54ab06e11552219e2a18e1b4a87d531321cf3829
When we get ip-neigbor information using VPP API,
it's age can be very useful information.
This patch adds age entry to API and neighbor type
Type: feature
Signed-off-by: Vladimir Ratnikov <vratnikov@netgate.com>
Change-Id: I822e70ba7a2bdd85fec40930cfc9341ab71f7cb3
Before this patch VPP checked age for ARP/NDP records every 1e5 seconds
for any configured aging time. This is 27 hours and it looks like
misprint because 1e5 is the number of 10us ticks in a second.
Also time to wait is now difference between aging time and time alive
for nodes in alive state.
Type: fix
Signed-off-by: Vladimir Isaev <visaev@netgate.com>
Change-Id: Ib5baa85032a44402d5f48c1145245260a42c7bae
fib_walk_sync may call adj_alloc which may cause adj_pool to expand. When
that happens, any previous frame which still use the old adj pointer needs to
refresh. Failure to do so may access or update to the old adj memory
unintentionally and crash mysteriously.
Type: fix
Ticket: VPPSUPP-54
Signed-off-by: Steven Luong <sluong@cisco.com>
Change-Id: I173dec4c5ce81c6e26c4fe011b894a7345901b24
Type: fix
Fixes: cbe25aab3b
ip_neighbor_advertise() was calling one of both of
ip4_neighbor_advertise() and/or ip6_neighbor_advertise() with
&addr->{ip4|ip6} as an argument. If addr is null, which is likely
a requirement when the type is IP46_TYPE_BOTH, this results in a
SEGV.
Check addr and pass a pointer to one of it's members if it is not
null, otherwise pass null.
Change-Id: I6261bb8fe947365fe3d6c58788ea27d5cb28ff05
Signed-off-by: Matthew Smith <mgsmith@netgate.com>
Type: fix
Fixes: cbe25aab3b
Wrap ip_neighbor_api_init() in VLIB_API_INIT_FUNCTION() macro
instead of VLIB_INIT_FUNCTION() so API message IDs get allocated.
Change-Id: Id0c36c16b982feb9d7442015f9ddf2449a9e5b60
Signed-off-by: Matthew Smith <mgsmith@netgate.com>
Type: feature
- ip-neighbour: generic neighbour handling; APIs, DBs, event handling,
aging
- arp: ARP protocol implementation
- ip6-nd; IPv6 neighbor discovery implementation; separate ND,
MLD, RA
- ip6-link; manage link-local addresses
- l2-arp-term; events separated from IP neighbours, since they are not
the same.
vnet retains just enough education to perform ND/ARP packet
construction.
arp and ip6-nd to be moved to plugins soon.
Change-Id: I88dedd0006b299344f4c7024a0aa5baa6b9a8bbe
Signed-off-by: Neale Ranns <nranns@cisco.com>
