[Buildroot] [PATCH v2] package/bash: add /bin/bash to /etc/shells

[Yann E. MORIN]

Romain, All,

On 2018-01-13 17:05 +0100, Romain Naour spake thusly:
> When bash is selected, /bin/bash is not added to /etc/shells
> (see man shells). So, login tools like dropbear reject the ssh
> connexions for users using bash as shell in /etc/passwd.
> 
> buildroot authpriv.warn dropbear[853]: User 'kubu' has invalid shell, rejected
> 
> Reported-by: Jeremy Rosen <jeremy.rosen at smile.fr>
> Signed-off-by: Romain Naour <romain.naour at smile.fr>
> Cc: "Yann E. MORIN" <yann.morin.1998 at free.fr>

Acked-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>

Regards,
Yann E. MORIN.

> ---
> The same issue can happend with other shells.
> 
> v2: add /bin/bash to /etc/shells only if it's missing (Yann)
> ---
>  package/bash/bash.mk | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/package/bash/bash.mk b/package/bash/bash.mk
> index 089d062..03f8f28 100644
> --- a/package/bash/bash.mk
> +++ b/package/bash/bash.mk
> @@ -40,10 +40,14 @@ endif
>  endif
>  
>  # Make /bin/sh -> bash (no other shell, better than busybox shells)
> +# Add /bin/bash to /etc/shells otherwise some login tools like dropbear
> +# can reject the user connexion. See man shells.
>  define BASH_INSTALL_TARGET_CMDS
>  	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) \
>  		DESTDIR=$(TARGET_DIR) exec_prefix=/ install
>  	rm -f $(TARGET_DIR)/bin/bashbug
> +	grep -qsE '^/bin/bash' $(TARGET_DIR)/etc/shells \
> +		|| echo "/bin/bash" >> $(TARGET_DIR)/etc/shells
>  endef
>  
>  $(eval $(autotools-package))
> -- 
> 2.7.4
> 

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