Re: [PATCH] dropbear: allow disabling support for scp

2020-08-13 Thread Hans Dedecker
Hi,

On Wed, Jul 22, 2020 at 3:34 PM Rui Salvaterra  wrote:
>
> If not needed, disabling scp allows for a nice size reduction.
>
> Dropbear executable size comparison:
>
> 153621 bytes (baseline)
> 133077 bytes (without scp)
>
> In other words, we trim a total of 20544 bytes.
>
> [Note: This patch is on top of
> "dropbear: fix ssh alternative when dbclient isn't built"]
>
> Signed-off-by: Rui Salvaterra 
> ---
>  package/network/services/dropbear/Config.in | 4 
>  package/network/services/dropbear/Makefile  | 8 +---
>  2 files changed, 9 insertions(+), 3 deletions(-)
>
> diff --git a/package/network/services/dropbear/Config.in 
> b/package/network/services/dropbear/Config.in
> index 0ac84ee206..b9ecbc815b 100644
> --- a/package/network/services/dropbear/Config.in
> +++ b/package/network/services/dropbear/Config.in
> @@ -102,4 +102,8 @@ config DROPBEAR_DBCLIENT
> bool "Build dropbear with dbclient"
> default y
>
> +config DROPBEAR_SCP
> +   bool "Build dropbear with scp"
> +   default y
> +
>  endmenu
> diff --git a/package/network/services/dropbear/Makefile 
> b/package/network/services/dropbear/Makefile
> index edd20909b1..8b57b214ae 100644
> --- a/package/network/services/dropbear/Makefile
> +++ b/package/network/services/dropbear/Makefile
> @@ -31,7 +31,7 @@ PKG_CONFIG_DEPENDS:= \
> CONFIG_DROPBEAR_RSA CONFIG_DROPBEAR_CURVE25519 CONFIG_DROPBEAR_ZLIB \
> CONFIG_DROPBEAR_ED25519 CONFIG_DROPBEAR_CHACHA20POLY1305 \
> CONFIG_DROPBEAR_UTMP CONFIG_DROPBEAR_PUTUTLINE \
> -   CONFIG_DROPBEAR_DBCLIENT
> +   CONFIG_DROPBEAR_DBCLIENT CONFIG_DROPBEAR_SCP
>
>  include $(INCLUDE_DIR)/package.mk
>
> @@ -53,7 +53,9 @@ define Package/dropbear
>CATEGORY:=Base system
>TITLE:=Small SSH2 client/server
>DEPENDS:= +DROPBEAR_ZLIB:zlib
> -  ALTERNATIVES:=100:/usr/bin/scp:/usr/sbin/dropbear
> +  ALTERNATIVES:=
> +  $(if $(CONFIG_DROPBEAR_SCP),ALTERNATIVES+= \
> + 100:/usr/bin/scp:/usr/sbin/dropbear,)
>$(if $(CONFIG_DROPBEAR_DBCLIENT),ALTERNATIVES+= \
>   100:/usr/bin/ssh:/usr/sbin/dropbear,)
>
> @@ -149,7 +151,7 @@ endef
>  define Build/Compile
> +$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
> $(TARGET_CONFIGURE_OPTS) \
> -   PROGRAMS="dropbear $(if 
> $(CONFIG_DROPBEAR_DBCLIENT),dbclient,) dropbearkey scp" \
> +   PROGRAMS="dropbear $(if 
> $(CONFIG_DROPBEAR_DBCLIENT),dbclient,) dropbearkey $(if 
> $(CONFIG_DROPBEAR_SCP),scp,)" \
> MULTI=1 SCPPROGRESS=1
> +$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
> $(TARGET_CONFIGURE_OPTS) \
> --
> 2.27.0
The patch is not applying anymore :

Applying: dropbear: allow disabling support for scp
error: sha1 information is lacking or useless
(package/network/services/dropbear/Config.in).
error: could not build fake ancestor

Can you send a V2 based on latest master ?

Hans
>
>
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Re: [PATCH] dropbear: allow disabling support for scp

2020-07-22 Thread Paul Spooren

Hi Rui,

I imagine it could be helpful if you use sstrip[0] on the created 
binaries to give a clearer size comparison.


[0]: https://github.com/BR903/ELFkickers/blob/master/sstrip/

Best,
Paul

On 22.07.20 03:31, Rui Salvaterra wrote:

If not needed, disabling scp allows for a nice size reduction.

Dropbear executable size comparison:

153621 bytes (baseline)
133077 bytes (without scp)

In other words, we trim a total of 20544 bytes.

[Note: This patch is on top of
"dropbear: fix ssh alternative when dbclient isn't built"]

Signed-off-by: Rui Salvaterra 
---
  package/network/services/dropbear/Config.in | 4 
  package/network/services/dropbear/Makefile  | 8 +---
  2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/package/network/services/dropbear/Config.in 
b/package/network/services/dropbear/Config.in
index 0ac84ee206..b9ecbc815b 100644
--- a/package/network/services/dropbear/Config.in
+++ b/package/network/services/dropbear/Config.in
@@ -102,4 +102,8 @@ config DROPBEAR_DBCLIENT
bool "Build dropbear with dbclient"
default y
  
+config DROPBEAR_SCP

+   bool "Build dropbear with scp"
+   default y
+
  endmenu
diff --git a/package/network/services/dropbear/Makefile 
b/package/network/services/dropbear/Makefile
index edd20909b1..8b57b214ae 100644
--- a/package/network/services/dropbear/Makefile
+++ b/package/network/services/dropbear/Makefile
@@ -31,7 +31,7 @@ PKG_CONFIG_DEPENDS:= \
CONFIG_DROPBEAR_RSA CONFIG_DROPBEAR_CURVE25519 CONFIG_DROPBEAR_ZLIB \
CONFIG_DROPBEAR_ED25519 CONFIG_DROPBEAR_CHACHA20POLY1305 \
CONFIG_DROPBEAR_UTMP CONFIG_DROPBEAR_PUTUTLINE \
-   CONFIG_DROPBEAR_DBCLIENT
+   CONFIG_DROPBEAR_DBCLIENT CONFIG_DROPBEAR_SCP
  
  include $(INCLUDE_DIR)/package.mk
  
@@ -53,7 +53,9 @@ define Package/dropbear

CATEGORY:=Base system
TITLE:=Small SSH2 client/server
DEPENDS:= +DROPBEAR_ZLIB:zlib
-  ALTERNATIVES:=100:/usr/bin/scp:/usr/sbin/dropbear
+  ALTERNATIVES:=
+  $(if $(CONFIG_DROPBEAR_SCP),ALTERNATIVES+= \
+ 100:/usr/bin/scp:/usr/sbin/dropbear,)
$(if $(CONFIG_DROPBEAR_DBCLIENT),ALTERNATIVES+= \
  100:/usr/bin/ssh:/usr/sbin/dropbear,)
  
@@ -149,7 +151,7 @@ endef

  define Build/Compile
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
$(TARGET_CONFIGURE_OPTS) \
-   PROGRAMS="dropbear $(if $(CONFIG_DROPBEAR_DBCLIENT),dbclient,) 
dropbearkey scp" \
+   PROGRAMS="dropbear $(if $(CONFIG_DROPBEAR_DBCLIENT),dbclient,) 
dropbearkey $(if $(CONFIG_DROPBEAR_SCP),scp,)" \
MULTI=1 SCPPROGRESS=1
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
$(TARGET_CONFIGURE_OPTS) \


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[PATCH] dropbear: allow disabling support for scp

2020-07-22 Thread Rui Salvaterra
If not needed, disabling scp allows for a nice size reduction.

Dropbear executable size comparison:

153621 bytes (baseline)
133077 bytes (without scp)

In other words, we trim a total of 20544 bytes.

[Note: This patch is on top of
"dropbear: fix ssh alternative when dbclient isn't built"]

Signed-off-by: Rui Salvaterra 
---
 package/network/services/dropbear/Config.in | 4 
 package/network/services/dropbear/Makefile  | 8 +---
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/package/network/services/dropbear/Config.in 
b/package/network/services/dropbear/Config.in
index 0ac84ee206..b9ecbc815b 100644
--- a/package/network/services/dropbear/Config.in
+++ b/package/network/services/dropbear/Config.in
@@ -102,4 +102,8 @@ config DROPBEAR_DBCLIENT
bool "Build dropbear with dbclient"
default y
 
+config DROPBEAR_SCP
+   bool "Build dropbear with scp"
+   default y
+
 endmenu
diff --git a/package/network/services/dropbear/Makefile 
b/package/network/services/dropbear/Makefile
index edd20909b1..8b57b214ae 100644
--- a/package/network/services/dropbear/Makefile
+++ b/package/network/services/dropbear/Makefile
@@ -31,7 +31,7 @@ PKG_CONFIG_DEPENDS:= \
CONFIG_DROPBEAR_RSA CONFIG_DROPBEAR_CURVE25519 CONFIG_DROPBEAR_ZLIB \
CONFIG_DROPBEAR_ED25519 CONFIG_DROPBEAR_CHACHA20POLY1305 \
CONFIG_DROPBEAR_UTMP CONFIG_DROPBEAR_PUTUTLINE \
-   CONFIG_DROPBEAR_DBCLIENT
+   CONFIG_DROPBEAR_DBCLIENT CONFIG_DROPBEAR_SCP
 
 include $(INCLUDE_DIR)/package.mk
 
@@ -53,7 +53,9 @@ define Package/dropbear
   CATEGORY:=Base system
   TITLE:=Small SSH2 client/server
   DEPENDS:= +DROPBEAR_ZLIB:zlib
-  ALTERNATIVES:=100:/usr/bin/scp:/usr/sbin/dropbear
+  ALTERNATIVES:=
+  $(if $(CONFIG_DROPBEAR_SCP),ALTERNATIVES+= \
+ 100:/usr/bin/scp:/usr/sbin/dropbear,)
   $(if $(CONFIG_DROPBEAR_DBCLIENT),ALTERNATIVES+= \
  100:/usr/bin/ssh:/usr/sbin/dropbear,)
 
@@ -149,7 +151,7 @@ endef
 define Build/Compile
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
$(TARGET_CONFIGURE_OPTS) \
-   PROGRAMS="dropbear $(if $(CONFIG_DROPBEAR_DBCLIENT),dbclient,) 
dropbearkey scp" \
+   PROGRAMS="dropbear $(if $(CONFIG_DROPBEAR_DBCLIENT),dbclient,) 
dropbearkey $(if $(CONFIG_DROPBEAR_SCP),scp,)" \
MULTI=1 SCPPROGRESS=1
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
$(TARGET_CONFIGURE_OPTS) \
-- 
2.27.0


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