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authorAlexander Chernavin <achernavin@netgate.com>2023-10-03 12:45:51 +0000
committerOle Tr�an <otroan@employees.org>2023-10-16 13:13:55 +0000
commitf68afe85a6e4d5e00fdad1af19a76eb40fdfa388 (patch)
treefe1f869f8429d09e7e352eeed3c900141baa7331 /src/vnet/fib/fib_internal.h
parentda34f4add5f141d58670d81d53553986e9a472b4 (diff)
flowprobe: fix corrupted packets sent after feature disabling
When IPFIX flow record generation is enabled on an interface and the active timer is set, flows will be saved and then exported according to the active and passive timers. If then disable the feature on the interface, the flow entries currently saved will remain in the state tables. They will gradually expire and be exported. The problem is that the template for them has already been removed. And they will be sent with zero template ID which will make them unreadable. A similar problem will occur if feature settings are "changed" on the interface - i.e. disable the feature and re-enable it with different settings (e.g. set a different datapath). The remaining flows that correspond to the previous feature settings will be eventually sent either with zero template ID or with template ID that corresponds to the current feature settings on the interface (and look like garbage data). With this fix, flush the current buffers before template removal and clear the remaining flows of the interface during feature disabling. Type: fix Change-Id: I1e57db06adfdd3a02fed1a6a89b5418f85a35e16 Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
Diffstat (limited to 'src/vnet/fib/fib_internal.h')
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