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Commit c00dab23 authored by Michael Sun's avatar Michael Sun Committed by Automerger Merge Worker
Browse files

Merge "Floss: Fix LTK auth field on BlueZ conversion" into main am: aa532159 

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/3003791



Change-Id: Icdfaed78b4e883d7cf3093d87def79cfcd792358
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents ed01176f aa532159

system/gd/rust/linux/mgmt/src/migrate.rs

+33 −8
Original line number Diff line number Diff line
@@ -47,6 +47,25 @@ struct LtkInfo { 
}



impl LtkInfo {

    // BlueZ has 5 valid possibilities of auth (b/329392926).

    // For simplicity, we only map it to the 2 values Floss supported.

    // This way we can't distinguish whether the device is using legacy or secure pairing.

    fn auth_from_bluez(bluez_auth: u8) -> u8 {

        match bluez_auth {

            0 | 2 | 4 => 1, // unauthenticated

            1 | 3 => 2,     // authenticated

            _ => 0,         // invalid

        }

    }



    fn auth_to_bluez(floss_auth: u8) -> u8 {

        match floss_auth {

            1 => 2, // unauthenticated, secure pairing

            2 => 3, // authenticated, secure pairing

            _ => 5, // invalid

        }

    }



    fn new_from_bluez(bluez_conf: &Ini, sec: &str) -> Self {

        LtkInfo {

            key: u128::from_str_radix(bluez_conf.get(sec, "Key").unwrap_or_default().as_str(), 16)
@@ -61,11 +80,13 @@ impl LtkInfo { 
                .unwrap_or_default()

                .parse::<u16>()

                .unwrap_or_default(),

            auth: bluez_conf

            auth: LtkInfo::auth_from_bluez(

                bluez_conf

                    .get(sec, "Authenticated")

                    .unwrap_or_default()

                    .parse::<u8>()

                    .unwrap_or_default(),

            ),

            len: bluez_conf

                .get(sec, "EncSize")

                .unwrap_or_default()
@@ -776,7 +797,11 @@ fn convert_floss_conf(filename: &str) { 
                bluez_info.set(section_name, "Key", Some(format!("{:032X}", ltk.key)));

                bluez_info.set(section_name, "Rand", Some(format!("{}", ltk.rand)));

                bluez_info.set(section_name, "EDiv", Some(format!("{}", ltk.ediv)));

                bluez_info.set(section_name, "Authenticated", Some(format!("{}", ltk.auth)));

                bluez_info.set(

                    section_name,

                    "Authenticated",

                    Some(format!("{}", LtkInfo::auth_to_bluez(ltk.auth))),

                );

                bluez_info.set(section_name, "EncSize", Some(format!("{}", ltk.len)));

                continue;

            } else if k == "LE_KEY_LENC" {
@@ -791,7 +816,7 @@ fn convert_floss_conf(filename: &str) { 
                bluez_info.set(

                    BLUEZ_LOCAL_LTK_SECTION_NAME,

                    "Authenticated",

                    Some(format!("{}", ltk.auth)),

                    Some(format!("{}", LtkInfo::auth_to_bluez(ltk.auth))),

                );

                bluez_info.set(

                    BLUEZ_LOCAL_LTK_SECTION_NAME,
@@ -1166,7 +1191,7 @@ mod tests { 
        );

        assert_eq!(

            conf.get(test_addr, "LE_KEY_PENC"),

            Some(String::from("00112233445566778899aabbccddeeff8877665544332211bbaa0110"))

            Some(String::from("00112233445566778899aabbccddeeff8877665544332211bbaa0210"))

        );



        assert_eq!(conf.get(test_addr, "HidAttrMask"), Some(String::from("0")));