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dropbear: minor config clarification

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- "default n" is not needed: options are not selected by default
- wrap config on 80 characters width (assuming tab is 8 characters long)
- add feature cost size and security notes for DROPBEAR_AGENTFORWARD
  and DROPBEAR_DBCLIENT_AGENTFORWARD:
  describe why and where it should be disabled

Signed-off-by: Konstantin Demin <rockdrilla@gmail.com>
This commit is contained in:
Konstantin Demin 2024-01-09 03:40:01 +03:00 committed by Rui Salvaterra
parent fa849fd411
commit 0b277f8659
1 changed files with 41 additions and 14 deletions
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55
package/network/services/dropbear/Config.in
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@ -12,7 +12,6 @@ config DROPBEAR_CURVE25519
config DROPBEAR_ECC
bool "Elliptic curve cryptography (ECC)"
default n
help
Enables basic support for elliptic curve cryptography (ECC)
in key exchange and public key authentication.
@ -25,11 +24,10 @@ config DROPBEAR_ECC
Increases binary size by about 24 kB (MIPS).
If full ECC support is required, also select DROPBEAR_ECC_FULL.
Note: select DROPBEAR_ECC_FULL if full ECC support is required.
config DROPBEAR_ECC_FULL
bool "Elliptic curve cryptography (ECC), full support"
default n
depends on DROPBEAR_ECC
help
Enables full support for elliptic curve cryptography (ECC)
@ -69,36 +67,50 @@ config DROPBEAR_CHACHA20POLY1305
config DROPBEAR_ZLIB
bool "Enable compression"
default n
help
Enables compression using shared zlib library.
Increases binary size by about 0.1 kB (MIPS) and requires additional 62 kB (MIPS)
for a shared zlib library.
Increases binary size by about 0.1 kB (MIPS) and requires
additional 62 kB (MIPS) for a shared zlib library.
config DROPBEAR_UTMP
bool "Utmp support"
default n
depends on BUSYBOX_CONFIG_FEATURE_UTMP
help
This enables dropbear utmp support, the file /var/run/utmp is used to
track who is currently logged in.
This enables dropbear utmp support, the file /var/run/utmp is
used to track who is currently logged in.
config DROPBEAR_PUTUTLINE
bool "Pututline support"
default n
depends on DROPBEAR_UTMP
help
Dropbear will use pututline() to write the utmp structure into the utmp file.
Dropbear will use pututline() to write the utmp structure into
the utmp file.
config DROPBEAR_DBCLIENT
bool "Build dropbear with dbclient"
default y
config DROPBEAR_DBCLIENT_AGENTFORWARD
bool "Enable agent forwarding in dbclient"
bool "Enable agent forwarding in dbclient [LEGACY/SECURITY]"
default y
depends on DROPBEAR_DBCLIENT
help
Increases binary size by about 0.1 kB (MIPS).
Security notes:
SSH agent forwarding might cause security issues (locally and
on the jump machine).
Hovewer, it's enabled by default for compatibility with
previous OpenWrt/dropbear releases.
Consider DISABLING this option if you're building own OpenWrt
image.
Also see DROPBEAR_AGENTFORWARD (agent forwarding in dropbear
server itself).
config DROPBEAR_SCP
bool "Build dropbear with scp"
@ -106,7 +118,6 @@ config DROPBEAR_SCP
config DROPBEAR_ASKPASS
bool "Enable askpass helper support"
default n
depends on DROPBEAR_DBCLIENT
help
This enables support for ssh-askpass helper in dropbear client
@ -115,7 +126,23 @@ config DROPBEAR_ASKPASS
Increases binary size by about 0.1 kB (MIPS).
config DROPBEAR_AGENTFORWARD
bool "Enable agent forwarding"
bool "Enable agent forwarding [LEGACY/SECURITY]"
default y
help
Increases binary size by about 0.1 kB (MIPS).
Security notes:
SSH agent forwarding might cause security issues (locally and
on the jump machine).
Hovewer, it's enabled by default for compatibility with
previous OpenWrt/dropbear releases.
Consider DISABLING this option if you're building own OpenWrt
image.
Also see DROPBEAR_DBCLIENT_AGENTFORWARD (agent forwarding in
dropbear client) if DROPBEAR_DBCLIENT is selected.
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