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Re: surprising value of LARGE_PACKET_MAX

From
Matheus Tavares <matheus.bernardino@usp.br>
Date
Nov 4, 2021, 20:12 UTC
Message-ID
<CAHd-oW6q67u=XGCGK=n25Kjph+ceuqPHLxQ0LH=Vydn4xctZ-A@mail.gmail.com>
In-Reply-To
<YYQtjWSb+z4taphX@kitenet.net>
On Thu, Nov 4, 2021 at 4:08 PM Joey Hess <id@joeyh.name> wrote:
Show 8 quoted lines
>
> The docs don't say what the maximum size is, so I assumed I could make
> it as large as the length header allows, which I think is a natural
> conclusion to draw from the documentation. But looking in git's source,
> fff0 is the maximum:
>
> #define LARGE_PACKET_MAX 65520
> #define LARGE_PACKET_DATA_MAX (LARGE_PACKET_MAX - 4)
[...]
> Perhaps the best thing to do would be to document it in
> Documentation/technical/protocol-common.txt

Could it be that you consulted an older version of this file? The current [1] version of the doc says:

"The maximum length of a pkt-line's data component is 65516 bytes. Implementations MUST NOT send pkt-line whose length exceeds 65520 (65516 bytes of payload + 4 bytes of length data)."

[1]: https://github.com/git/git/blob/master/Documentation/technical/protocol-common.txt
Previous: Joey HessNext: Joey Hess
Message 2 of 3 in “surprising value of LARGE_PACKET_MAX”
  1. Joey HessNov 4, 2021
  2. Matheus TavaresNov 4, 2021
  3. Joey HessNov 5, 2021

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