NameDateSize

..14-Feb-20134 KiB

agentfwd.h14-Feb-20131.6 KiB

algo.h14-Feb-20132.4 KiB

Android.mk14-Feb-20131.5 KiB

atomicio.c14-Feb-20132 KiB

atomicio.h14-Feb-20131.6 KiB

auth.h14-Feb-20133.6 KiB

bignum.c14-Feb-20132.4 KiB

bignum.h14-Feb-20131.4 KiB

buffer.c14-Feb-20138.4 KiB

buffer.h14-Feb-20132.5 KiB

CHANGES14-Feb-201321.1 KiB

channel.h14-Feb-20134.5 KiB

chansession.h14-Feb-20132.3 KiB

circbuffer.c14-Feb-20133.6 KiB

circbuffer.h14-Feb-20132 KiB

CleanSpec.mk14-Feb-20132.2 KiB

cli-algo.c14-Feb-20132.9 KiB

cli-auth.c14-Feb-20137.5 KiB

cli-authinteract.c14-Feb-20134.3 KiB

cli-authpasswd.c14-Feb-20133.8 KiB

cli-authpubkey.c14-Feb-20135.6 KiB

cli-channel.c14-Feb-20132 KiB

cli-chansession.c14-Feb-20139.1 KiB

cli-kex.c14-Feb-20138.8 KiB

cli-main.c14-Feb-20133.3 KiB

cli-runopts.c14-Feb-201310.3 KiB

cli-service.c14-Feb-20132.7 KiB

cli-session.c14-Feb-20138.8 KiB

cli-tcpfwd.c14-Feb-20135.3 KiB

common-algo.c14-Feb-20136.1 KiB

common-channel.c14-Feb-201327.9 KiB

common-chansession.c14-Feb-20131.5 KiB

common-kex.c14-Feb-201321.6 KiB

common-runopts.c14-Feb-20131.8 KiB

common-session.c14-Feb-20139.2 KiB

compat.c14-Feb-20138.1 KiB

compat.h14-Feb-20131.7 KiB

config.guess14-Feb-201343.5 KiB

config.h14-Feb-201310.9 KiB

config.h.in14-Feb-201310.3 KiB

config.sub14-Feb-201331.9 KiB

configure14-Feb-2013420.5 KiB

configure.in14-Feb-201317.7 KiB

dbclient.114-Feb-20131.8 KiB

dbmulti.c14-Feb-20132.7 KiB

dbutil.c14-Feb-201317 KiB

dbutil.h14-Feb-20132.8 KiB

debian/14-Feb-20134 KiB

debug.h14-Feb-20132.9 KiB

dropbear.814-Feb-20131.9 KiB

dropbearconvert.c14-Feb-20133.9 KiB

dropbearkey.814-Feb-2013822

dropbearkey.c14-Feb-20138.4 KiB

dss.c14-Feb-201311 KiB

dss.h14-Feb-20131.9 KiB

fake-rfc2553.c14-Feb-20136 KiB

fake-rfc2553.h14-Feb-20134.9 KiB

filelist.txt14-Feb-20133.1 KiB

gendss.c14-Feb-20134.7 KiB

gendss.h14-Feb-20131.3 KiB

genrsa.c14-Feb-20133.9 KiB

genrsa.h14-Feb-20131.3 KiB

includes.h14-Feb-20133.3 KiB

INSTALL14-Feb-20133.2 KiB

install-sh14-Feb-20135.5 KiB

kex.h14-Feb-20132.3 KiB

keyimport.c14-Feb-201342.8 KiB

keyimport.h14-Feb-20131.5 KiB

libtomcrypt/14-Feb-20134 KiB

libtommath/14-Feb-20134 KiB

LICENSE14-Feb-20133.5 KiB

listener.c14-Feb-20134.3 KiB

listener.h14-Feb-20132.1 KiB

loginrec.c14-Feb-201333.8 KiB

loginrec.h14-Feb-20135.8 KiB

Makefile.in14-Feb-20135.8 KiB

MODULE_LICENSE_BSD_LIKE14-Feb-20130

MULTI14-Feb-2013766

netbsd_getpass.c14-Feb-20133.3 KiB

NOTICE14-Feb-20133.5 KiB

options.h14-Feb-201313.7 KiB

packet.c14-Feb-201316.6 KiB

packet.h14-Feb-20131.5 KiB

process-packet.c14-Feb-20134 KiB

progressmeter.c14-Feb-20137.2 KiB

progressmeter.h14-Feb-20131.4 KiB

queue.c14-Feb-20132.2 KiB

queue.h14-Feb-20131.5 KiB

random.c14-Feb-20136.4 KiB

random.h14-Feb-20131.4 KiB

README14-Feb-20133 KiB

rsa.c14-Feb-201310.7 KiB

rsa.h14-Feb-20131.9 KiB

runopts.h14-Feb-20132.8 KiB

scp.c14-Feb-201328.2 KiB

scpmisc.c14-Feb-20135.6 KiB

scpmisc.h14-Feb-20132 KiB

service.h14-Feb-20131.4 KiB

session.h14-Feb-20137.8 KiB

signkey.c14-Feb-201312.1 KiB

signkey.h14-Feb-20132.3 KiB

SMALL14-Feb-20132 KiB

ssh.h14-Feb-20134.3 KiB

sshpty.c14-Feb-201310.4 KiB

sshpty.h14-Feb-20131,006

svr-agentfwd.c14-Feb-20136.5 KiB

svr-algo.c14-Feb-20133.1 KiB

svr-auth.c14-Feb-201310.7 KiB

svr-authpam.c14-Feb-20137.8 KiB

svr-authpasswd.c14-Feb-20133.2 KiB

svr-authpubkey.c14-Feb-20139.8 KiB

svr-chansession.c14-Feb-201326.6 KiB

svr-kex.c14-Feb-20133.3 KiB

svr-main.c14-Feb-201310.3 KiB

svr-runopts.c14-Feb-20138.6 KiB

svr-service.c14-Feb-20132.5 KiB

svr-session.c14-Feb-20135.6 KiB

svr-tcpfwd.c14-Feb-20137 KiB

svr-x11fwd.c14-Feb-20136.1 KiB

tcp-accept.c14-Feb-20134.2 KiB

tcpfwd.h14-Feb-20132.1 KiB

termcodes.c14-Feb-20134 KiB

termcodes.h14-Feb-20131.5 KiB

TODO14-Feb-2013623

x11fwd.h14-Feb-20131.5 KiB

README

1This is Dropbear, a smallish SSH 2 server and client.
2
3INSTALL has compilation instructions.
4
5MULTI has instructions on making a multi-purpose binary (ie a single binary
6which performs multiple tasks, to save disk space)
7
8SMALL has some tips on creating small binaries.
9
10See TODO for a few of the things I know need looking at, and please contact
11me if you have any questions/bugs found/features/ideas/comments etc :)
12
13Matt Johnston
14matt@ucc.asn.au
15
16
17In the absence of detailed documentation, some notes follow:
18============================================================================
19
20Server public key auth:
21
22You can use ~/.ssh/authorized_keys in the same way as with OpenSSH, just put
23the key entries in that file. They should be of the form:
24
25ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIEAwVa6M6cGVmUcLl2cFzkxEoJd06Ub4bVDsYrWvXhvUV+ZAM9uGuewZBDoAqNKJxoIn0Hyd0Nk/yU99UVv6NWV/5YSHtnf35LKds56j7cuzoQpFIdjNwdxAN0PCET/MG8qyskG/2IE2DPNIaJ3Wy+Ws4IZEgdJgPlTYUBWWtCWOGc= someone@hostname
26
27You must make sure that ~/.ssh, and the key file, are only writable by the
28user. Beware of editors that split the key into multiple lines.
29
30NOTE: Dropbear ignores authorized_keys options such as those described in the
31OpenSSH sshd manpage, and will not allow a login for these keys. 
32
33============================================================================
34
35Client public key auth:
36
37Dropbear can do public key auth as a client, but you will have to convert
38OpenSSH style keys to Dropbear format, or use dropbearkey to create them.
39
40If you have an OpenSSH-style private key ~/.ssh/id_rsa, you need to do:
41
42dropbearconvert openssh dropbear ~/.ssh/id_rsa  ~/.ssh/id_rsa.db
43dbclient -i ~/.ssh/id_rsa.db <hostname>
44
45Currently encrypted keys aren't supported, neither is agent forwarding. At some
46stage both hopefully will be.
47
48============================================================================
49
50If you want to get the public-key portion of a Dropbear private key, look at
51dropbearkey's '-y' option.
52
53============================================================================
54
55To run the server, you need to generate server keys, this is one-off:
56./dropbearkey -t rsa -f dropbear_rsa_host_key
57./dropbearkey -t dss -f dropbear_dss_host_key
58
59or alternatively convert OpenSSH keys to Dropbear:
60./dropbearconvert openssh dropbear /etc/ssh/ssh_host_dsa_key dropbear_dss_host_key
61
62============================================================================
63
64If the server is run as non-root, you most likely won't be able to allocate a
65pty, and you cannot login as any user other than that running the daemon
66(obviously). Shadow passwords will also be unusable as non-root.
67
68============================================================================
69
70The Dropbear distribution includes a standalone version of OpenSSH's scp
71program. You can compile it with "make scp", you may want to change the path
72of the ssh binary, specified by _PATH_SSH_PROGRAM in options.h . By default
73the progress meter isn't compiled in to save space, you can enable it by 
74adding 'SCPPROGRESS=1' to the make commandline.
75