Add RFC5425 length field #140
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Add a format to pick framing the message with an RFC 5425 length field. The RFC doesn't specify a maximum length, but does suggest 8192; added a digit over that to make sure systemd-netlogd is not the limit.
ssahani
approved these changes
Aug 19, 2025
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Add a
LogFormatto pick framing the message with an RFC 5425 length field. The RFC doesn't specify a maximum length, but does suggest 8192; added a digit over that to make sure systemd-netlogd is not the limit. This is an alternative to the newline framing, and can also be used over plain TCP (non-TLS), e.g., RFC 6587.This isn't full RFC 5425 support as this patch doesn't add support for client certificates.
PS: I extended the
SysLogTransmissionLogFormattable the way you currently have it, which uses powers-of-two like a bit mask (as if you could set multiple of them). I didn't actually see it used like that in the code though, so I'm not sure why it andSysLogTransmissionProtocolare done that way. I think that's wasting some space in in thelog_format_tableandprotocol_table(currently an insignificant amount, but doubling each new flag) but otherwise doesn't matter.