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GH-474: add MQTT::max_payload_size option

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This caps size of payload strings within mqtt_publish events and
mqtt_publish.log files.  A new "payload_len" field in the log file
shows the real payload size in cases where it may have been truncated.
This commit is contained in:
Jon Siwek 2019-08-02 14:28:55 -07:00
parent c43e809a69
commit 6bc947a48e
12 changed files with 66 additions and 17 deletions
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10
scripts/base/init-bare.zeek
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@ -5083,7 +5083,17 @@ export {
## Payload of the published message.
payload : string;
## The actual length of the payload in the case the *payload*
## field's contents were truncated according to
## :zeek:see:`MQTT::max_payload_size`.
payload_len : count;
};
## The maximum payload size to allocate for the purpose of
## payload information in :zeek:see:`mqtt_publish` events (and the
## default MQTT logs generated from that).
const max_payload_size = 100 &redef;
}
module Cluster;