Secure Simple Pairing Mode - Setting NoInputNoOutput mode
Is there a method (programmatic or hciconfig - type) to change the Mode of a BT v2.1 dongle to require NoInputNoOutput/JustWorks pairing?
I want to make my box (running linux 2.6.30.2 kernel on an arm processor with Bluez 4.67 and a Broadcom v2.1 dongle) pair with another device in the "JustWorks" (NoInputNoOutput) mode.
1. The SSP mode seems to default to "Numeric Comparison" mode. I am trying to find out how to switch to "Just Works" (NoInputNoOutput mode) Can someone point me to a command or code that would switch my adapter into the NoInputNoOutput mode?
Is it something I can configure through hciconfig or through a dbus command?
2. The man page for hciconfig has the command hciconfig hciX sspmode
[mode]. Is [mode] only valid for 0 or 1?
In looking in hciconfig.c, at the hci_read_simple_pairing_mode/hci_write_simple_pairing_mode functions, there is no clear indication as to what the accepted values are for [mode}
Tim Bennett
Hi Tim,
Quoted 13 lines · Tim Bennett
Is there a method (programmatic or hciconfig - type) to change the Mode of a BT v2.1 dongle to require NoInputNoOutput/JustWorks pairing?
I want to make my box (running linux 2.6.30.2 kernel on an arm processor with Bluez 4.67 and a Broadcom v2.1 dongle) pair with another device in the "JustWorks" (NoInputNoOutput) mode.
1. The SSP mode seems to default to "Numeric Comparison" mode. I am trying to find out how to switch to "Just Works" (NoInputNoOutput mode) Can someone point me to a command or code that would switch my adapter into the NoInputNoOutput mode?
Is it something I can configure through hciconfig or through a dbus command?
Quoted 6 lines
2. The man page for hciconfig has the command hciconfig hciX sspmode
[mode]. Is [mode] only valid for 0 or 1?In looking in
hciconfig.c, at the hci_read_simple_pairing_mode/hci_write_simple_pairing_mode functions, there is no clear indication as to what the accepted values are for [mode}
You're looking a bit in the wrong place. What you want is an agent that registers "NoInputNoOutput" as its IO capability. You could e.g. experiment by using test/simple-agent. Find the two places in it that say "DisplayYesNo" and change them to "NoInputNoOutput". Then you can use that script as a "just works" pairing initator or acceptor.
Johan
Hello Johan
Quoted 24 lines · Johan Hedberg
Hi Tim,
Quoted 13 lines · Tim Bennett
Is there a method (programmatic or hciconfig - type) to change the Mode of a BT v2.1 dongle to require NoInputNoOutput/JustWorks pairing?
I want to make my box (running linux 2.6.30.2 kernel on an arm processor with Bluez 4.67 and a Broadcom v2.1 dongle) pair with another device in the "JustWorks" (NoInputNoOutput) mode.
1. The SSP mode seems to default to "Numeric Comparison" mode. I am trying to find out how to switch to "Just Works" (NoInputNoOutput mode) Can someone point me to a command or code that would switch my adapter into the NoInputNoOutput mode?
Is it something I can configure through hciconfig or through a dbus command?Quoted 7 lines
2. The man page for hciconfig has the command hciconfig hciX sspmode
[mode]. Is [mode] only valid for 0 or 1?In looking in
hciconfig.c, at the hci_read_simple_pairing_mode/hci_write_simple_pairing_mode functions, there is no clear indication as to what the accepted values are for [mode}
Quoted 8 lines
You're looking a bit in the wrong place. What you want is an agent that registers "NoInputNoOutput" as its IO capability. You could e.g. experiment by using test/simple-agent. Find the two places in it that say "DisplayYesNo" and change them to "NoInputNoOutput". Then you can use that script as a "just works" pairing initator or acceptor.
Johan
Thank you for the kind and quick response and the helpful hint. I shall do as suggested!
Tim