Re: [ptxdist] [PATCH 3/4] dropbear: version bump 2019.78 -> 2020.79

[Alexander Dahl <post@lespocky.de>]

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Hei hei,

On Thu, Nov 05, 2020 at 09:13:01AM +0100, Alexander Dahl wrote:
> Noteworthy changes (not all options accessible through ptxdist menu):
> 
> - added support for ed25519 hostkeys and authorized_keys
> - added support for chacha20-poly1305 authenticated cipher
> - added support for and rsa-sha2 signatures
> - disabled some options by default (kconfig defaults adapted accordingly)
> - fix idle detection clashing with keepalives
> - scp fix for CVE-2018-20685 where a server could modify name of output
>   files
> - Call fsync() is called on parent directory when writing key files to
>   ensure they are flushed
> 
> One especially important change:
> 
> > Use getrandom() call on Linux to ensure sufficient entropy has been
> > gathered at startup.  Dropbear now avoids reading from the random
> > source at startup, instead waiting until the first connection. It is
> > possible that some platforms were running without enough entropy
> > previously, those could potentially block at first boot generating
> > host keys.  The dropbear "-R" option is one way to avoid that.
> 
> On older toolchains/kernel headers/kernels without getrandom() support,
> dropbear should behave like before.
> 
> The curve25519 implementation was replaced with the one by TweetNaCl,
> which induced a change in 'LICENSE' summary.  The old implementation was
> licensed BSD-3-Clause and the new is public domain.
> 
> The bundled libtommath changed its license from dual license (public
> domain || WTFPL) to 'Unlicense' which is also a public domain license,
> but with a differently worded license text and an actual SPDX
> identifier.
> 
> Signed-off-by: Alexander Dahl <ada@thorsis.com>
> ---
>  rules/dropbear.in   |  2 +-
>  rules/dropbear.make | 11 ++++++-----
>  2 files changed, 7 insertions(+), 6 deletions(-)

When reworking this patch today in the morning I forgot to remove the
2019.78 patch series. The one patch in there had gone upstream with
2020.79 and can be dropped.

I'll send a v2 tomorrow.

A

> 
> diff --git a/rules/dropbear.in b/rules/dropbear.in
> index d01f2c73e..dbe1a34bc 100644
> --- a/rules/dropbear.in
> +++ b/rules/dropbear.in
> @@ -116,6 +116,7 @@ comment "features"
>  config DROPBEAR_DIS_X11
>  	bool
>  	prompt "disable X11 Forwarding"
> +	default y
>  	help
>  	  X11 forwarding means passing X11 (graphical interface)
>  	  information over the SSH connection.
> @@ -149,7 +150,6 @@ config DROPBEAR_AES128
>  config DROPBEAR_3DES
>  	bool
>  	prompt "3DES"
> -	default y
>  	help
>  	  DES is an IBM algorithm designed during the 1970s.
>  	  In 1976, NIST has officially adopted it as an encryption
> diff --git a/rules/dropbear.make b/rules/dropbear.make
> index 4f55fac48..1907bc0ae 100644
> --- a/rules/dropbear.make
> +++ b/rules/dropbear.make
> @@ -16,19 +16,19 @@ PACKAGES-$(PTXCONF_DROPBEAR) += dropbear
>  #
>  # Paths and names
>  #
> -DROPBEAR_VERSION	:= 2019.78
> -DROPBEAR_MD5		:= a972c85ed678ad0fdcb7844e1294fb54
> +DROPBEAR_VERSION	:= 2020.79
> +DROPBEAR_MD5		:= 830a7bf6349ac52a39c487d061efb352
>  DROPBEAR		:= dropbear-$(DROPBEAR_VERSION)
>  DROPBEAR_SUFFIX		:= tar.bz2
>  DROPBEAR_URL		:= http://matt.ucc.asn.au/dropbear/releases/$(DROPBEAR).$(DROPBEAR_SUFFIX)
>  DROPBEAR_SOURCE		:= $(SRCDIR)/$(DROPBEAR).$(DROPBEAR_SUFFIX)
>  DROPBEAR_DIR		:= $(BUILDDIR)/$(DROPBEAR)
>  DROPBEAR_LICENSE	:= \
> -	MIT AND BSD-2-Clause AND BSD-3-Clause AND SSH-short AND (public_domain OR WTFPL)
> +	MIT AND BSD-2-Clause AND public_domain AND SSH-short AND (public_domain OR WTFPL) AND Unlicense
>  DROPBEAR_LICENSE_FILES	:= \
> -	file://LICENSE;md5=a5ec40cafba26fc4396d0b550f824e01 \
> +	file://LICENSE;md5=da58928b5d844c6667963cb5a109272d \
>  	file://libtomcrypt/LICENSE;md5=71baacc459522324ef3e2b9e052e8180 \
> -	file://libtommath/LICENSE;md5=f72771f4af5e8c382974750f9f8701ad \
> +	file://libtommath/LICENSE;md5=23e7e0a32e53a2b1d35f5fd9ef053402 \
>  	file://loginrec.c;startline=1;endline=26;md5=0d785ee11fab1cead2c7fee9c35574f1
>  
>  # ----------------------------------------------------------------------------
> @@ -48,6 +48,7 @@ DROPBEAR_CONF_OPT 	:= \
>  	--$(call ptx/disen, PTXCONF_DROPBEAR_DIS_OPENPTY)-openpty \
>  	--$(call ptx/disen, PTXCONF_DROPBEAR_DIS_SYSLOG)-syslog \
>  	--enable-shadow \
> +	--disable-plugin \
>  	--disable-fuzz \
>  	--enable-bundled-libtom \
>  	--$(call ptx/disen, PTXCONF_DROPBEAR_DIS_LASTLOG)-lastlog \
> -- 
> 2.27.0
> 
> 
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