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Code Issues Actions 7 Packages Projects Releases Wiki Activity

dropbear: add config options for agent-forwarding support

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* SSH agent forwarding might cause security issues, locally and on the jump
  machine (https://defn.io/2019/04/12/ssh-forwarding/). So allow to
  completely disabling it.
* separate options for client and server
* keep it enabled by default

Signed-off-by: Sven Roederer <devel-sven@geroedel.de>
This commit is contained in:
Sven Roederer 2021-07-16 00:44:53 +02:00 committed by Christian Lamparter
parent 88a2ea41da
commit 5287defa1f
2 changed files with 13 additions and 1 deletions
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9
package/network/services/dropbear/Config.in
View File

@ -95,6 +95,11 @@ config DROPBEAR_DBCLIENT
bool "Build dropbear with dbclient" bool "Build dropbear with dbclient"
default y default y
config DROPBEAR_DBCLIENT_AGENTFORWARD
bool "Enable agent forwarding in dbclient"
default y
depends on DROPBEAR_DBCLIENT
config DROPBEAR_SCP config DROPBEAR_SCP
bool "Build dropbear with scp" bool "Build dropbear with scp"
default y default y
@ -109,4 +114,8 @@ config DROPBEAR_ASKPASS
Increases binary size by about 0.1 kB (MIPS). Increases binary size by about 0.1 kB (MIPS).
config DROPBEAR_AGENTFORWARD
bool "Enable agent forwarding"
default y
endmenu endmenu

5
package/network/services/dropbear/Makefile
View File

@ -32,7 +32,8 @@ PKG_CONFIG_DEPENDS:= \
CONFIG_DROPBEAR_CURVE25519 CONFIG_DROPBEAR_ZLIB \ CONFIG_DROPBEAR_CURVE25519 CONFIG_DROPBEAR_ZLIB \
CONFIG_DROPBEAR_ED25519 CONFIG_DROPBEAR_CHACHA20POLY1305 \ CONFIG_DROPBEAR_ED25519 CONFIG_DROPBEAR_CHACHA20POLY1305 \
CONFIG_DROPBEAR_UTMP CONFIG_DROPBEAR_PUTUTLINE \ CONFIG_DROPBEAR_UTMP CONFIG_DROPBEAR_PUTUTLINE \
CONFIG_DROPBEAR_DBCLIENT CONFIG_DROPBEAR_SCP CONFIG_DROPBEAR_ASKPASS CONFIG_DROPBEAR_DBCLIENT CONFIG_DROPBEAR_SCP CONFIG_DROPBEAR_ASKPASS \
CONFIG_DROPBEAR_DBCLIENT_AGENTFORWARD CONFIG_DROPBEAR_AGENTFORWARD
include $(INCLUDE_DIR)/package.mk include $(INCLUDE_DIR)/package.mk
@ -135,6 +136,8 @@ DB_OPT_CONFIG = \
!!DROPBEAR_ECC_384|CONFIG_DROPBEAR_ECC_FULL|1|0 \ !!DROPBEAR_ECC_384|CONFIG_DROPBEAR_ECC_FULL|1|0 \
!!DROPBEAR_ECC_521|CONFIG_DROPBEAR_ECC_FULL|1|0 \ !!DROPBEAR_ECC_521|CONFIG_DROPBEAR_ECC_FULL|1|0 \
DROPBEAR_CLI_ASKPASS_HELPER|CONFIG_DROPBEAR_ASKPASS|1|0 \ DROPBEAR_CLI_ASKPASS_HELPER|CONFIG_DROPBEAR_ASKPASS|1|0 \
DROPBEAR_CLI_AGENTFWD|CONFIG_DROPBEAR_DBCLIENT_AGENTFORWARD|1|0 \
DROPBEAR_SVR_AGENTFWD|CONFIG_DROPBEAR_AGENTFORWARD|1|0 \
TARGET_CFLAGS += -DARGTYPE=3 -ffunction-sections -fdata-sections -flto TARGET_CFLAGS += -DARGTYPE=3 -ffunction-sections -fdata-sections -flto