Mercurial > dropbear
view MULTI @ 1715:3974f087d9c0
Disallow leading lines before the ident for server (#102)
Per RFC4253 4.2 clients must be able to process other lines of data
before the version string, server behavior is not defined neither
with MUST/SHOULD nor with MAY.
If server process up to 50 lines too - it may cause too long hanging
session with invalid/evil client that consume host resources and
potentially may lead to DDoS on poor embedded boxes.
Let's require first line from client to be version string and fail
early if it's not - matches both RFC and real OpenSSH behavior.
author | Vladislav Grishenko <themiron@users.noreply.github.com> |
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date | Mon, 15 Jun 2020 18:22:18 +0500 |
parents | 93e04b9ff676 |
children |
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Multi-binary compilation ======================== To compile for systems without much space (floppy distributions etc), you can create a single binary. This will save disk space by avoiding repeated code between the various parts. If you are familiar with "busybox", it's the same principle. To compile the multi-binary, first "make clean" (if you've compiled previously), then make PROGRAMS="programs you want here" MULTI=1 To use the binary, symlink it from the desired executable: ln -s dropbearmulti dropbear ln -s dropbearmulti dbclient etc then execute as normal: ./dropbear <options here>