annotate INSTALL @ 1814:f78e67527731

Add configure script to version control. Set timezone for release tarball
author Matt Johnston <matt@ucc.asn.au>
date Wed, 31 Mar 2021 23:23:14 +0800
parents 2bf1e97ba3cd
children
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1 Basic Dropbear build instructions:
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2
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3 - Edit localoptions.h to set which features you want. Available options
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4 are described in default_options.h, these will be overridden by
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5 anything set in localoptions.h
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6 localoptions.h should be located in the build directory if you are
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7 building out of tree.
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9 - Configure for your system:
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10 ./configure (optionally with --disable-zlib or --disable-syslog,
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11 or --help for other options)
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13 (you'll need to first run "autoconf; autoheader" if you edit configure.ac)
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15 - Compile:
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17 make PROGRAMS="dropbear dbclient dropbearkey dropbearconvert scp"
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18
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19 - Optionally install, or copy the binaries another way
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21 make install (/usr/local/bin is usual default):
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23 or
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25 make PROGRAMS="dropbear dbclient dropbearkey dropbearconvert scp" install
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27 (you can leave items out of the PROGRAMS list to avoid compiling them. If you
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28 recompile after changing the PROGRAMS list, you *MUST* "make clean" before
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29 recompiling - bad things will happen otherwise)
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31 DEVELOPING.md has some notes on other developer topics, including debugging.
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33 See MULTI for instructions on making all-in-one binaries.
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34
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35 If you want to compile statically use ./configure --enable-static
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36
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37 By default Dropbear adds various build flags that improve robustness
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38 against programming bugs (good for security). If these cause problems
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39 they can be disabled with ./configure --disable-harden
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41 Binaries can be stripped with "make strip"
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43 ============================================================================
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45 If you're compiling for a 386-class CPU, you will probably need to add
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46 CFLAGS=-DLTC_NO_BSWAP so that libtomcrypt doesn't use 486+ instructions.
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48 ============================================================================
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49
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50 Compiling with uClibc:
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52 Firstly, make sure you have at least uclibc 0.9.17, as getusershell() in prior
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53 versions is broken. Also note that you may get strange issues if your uClibc
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54 headers don't match the library you are running with, ie the headers might
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55 say that shadow password support exists, but the libraries don't have it.
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57 Compiling for uClibc should be the same as normal, just set CC to the magic
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58 uClibc toolchain compiler (ie export CC=i386-uclibc-gcc or whatever).
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59 You can use "make STATIC=1" to make statically linked binaries, and it is
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60 advisable to strip the binaries too. If you're looking to make a small binary,
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61 you should remove unneeded ciphers and MD5, by editing localoptions.h
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63 It is possible to compile zlib in, by copying zlib.h and zconf.h into a
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64 subdirectory (ie zlibincludes), and
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66 export CFLAGS="-Izlibincludes -I../zlibincludes"
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67 export LDFLAGS=/usr/lib/libz.a
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69 before ./configure and make.
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71 If you disable zlib, you must explicitly disable compression for the client -
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72 OpenSSH is possibly buggy in this regard, it seems you need to disable it
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73 globally in ~/.ssh/config, not just in the host entry in that file.
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75 You may want to manually disable lastlog recording when using uClibc, configure
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76 with --disable-lastlog.
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78 One common problem is pty allocation. There are a number of types of pty
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79 allocation which can be used -- if they work properly, the end result is the
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80 same for each type. Running configure should detect the best type to use
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81 automatically, however for some systems, this may be incorrect. Some
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82 things to note:
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84 If your system expects /dev/pts to be mounted (this is a uClibc option),
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85 make sure that it is.
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87 Make sure that your libc headers match the library version you are using.
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89 If openpty() is being used (HAVE_OPENPTY defined in config.h) and it fails,
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90 you can try compiling with --disable-openpty. You will probably then need
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91 to create all the /dev/pty?? and /dev/tty?? devices, which can be
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92 problematic for devfs. In general, openpty() is the best way to allocate
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93 PTYs, so it's best to try and get it working.