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authorPim van Pelt <pim@ipng.nl>2021-08-10 23:44:44 +0200
committerNeale Ranns <neale@graphiant.com>2021-08-14 12:05:39 +0000
commit76b19ceafcf892b56a679d3d7fe5c6f4b93f7de7 (patch)
tree947c5d5f7dba6a2abc02ac63fc1772de5b6f0f8c /src/vnet/llc
parent2a1783fd6ae7e17c994010fca414c180eb48bc40 (diff)
ip: Fix crash in ip address add on sub-int without exact-match
Type: fix Creating a sub-int without exact-match set, and subsequently adding an IPv4 or IPv6 address will crash VPP. This fix catches this situation and refuses to allow the caller to add an IPv4 or IPv6 address on an ethernet sub-int that does not have exact-match set. TESTED: Before this change, the following crashes VPP: ``` DBGvpp# cre sub TenGigabitEthernet3/0/0 1 dot1q 10 TenGigabitEthernet3/0/0.1 DBGvpp# set interface ip address TenGigabitEthernet3/0/0.1 2001:db8::1/64 <crash> ``` After the change, VPP refuses to act: ``` DBGvpp# cre sub TenGigabitEthernet3/0/0 1 dot1q 10 TenGigabitEthernet3/0/0.1 DBGvpp# set interface ip address TenGigabitEthernet3/0/0.1 192.0.2.1/30 set interface ip address: sub-interface without exact-match doesn't support IP addressing DBGvpp# set interface ip address TenGigabitEthernet3/0/0.1 2001:db8:1/64 set interface ip address: sub-interface without exact-match doesn't support IP addressing ``` Signed-off-by: Pim van Pelt <pim@ipng.nl> Change-Id: I42997db314225cd186ebb54013b5717ace7f7bd6
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