bt_gap_config/
bt_gap_config_rust_config_lib_source.rs

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use fidl::unpersist;
use fidl_cf_sc_internal_btgapconfig::Config as FidlConfig;
use fuchsia_inspect::Node;
use fuchsia_runtime::{take_startup_handle, HandleInfo, HandleType};
#[derive(Debug)]
pub struct Config {
    pub bredr_connectable: bool,
    pub bredr_security_mode: String,
    pub le_background_scanning: bool,
    pub le_privacy: bool,
    pub le_security_mode: String,
}
impl Config {
    pub fn take_from_startup_handle() -> Self {
        let config_vmo: zx::Vmo =
            take_startup_handle(HandleInfo::new(HandleType::ComponentConfigVmo, 0))
                .expect("Config VMO handle must be provided and cannot already have been taken.")
                .into();
        let config_size =
            config_vmo.get_content_size().expect("must be able to read config vmo content size");
        assert_ne!(config_size, 0, "config vmo must be non-empty");
        let config_bytes =
            config_vmo.read_to_vec(0, config_size).expect("must be able to read config vmo");
        let checksum_length = u16::from_le_bytes([config_bytes[0], config_bytes[1]]) as usize;
        let fidl_start = 2 + checksum_length;
        let observed_checksum = &config_bytes[2..fidl_start];
        let expected_checksum = vec![
            0x1c, 0xbb, 0x3f, 0x24, 0x89, 0x00, 0x00, 0x5d, 0x4c, 0xd8, 0x73, 0xbc, 0x20, 0x94,
            0xec, 0x68, 0x95, 0xd6, 0xf3, 0x1a, 0x90, 0x90, 0xdb, 0x99, 0x5e, 0xc2, 0xf7, 0xa0,
            0x90, 0x50, 0x34, 0x31,
        ];
        assert_eq!(
            observed_checksum, expected_checksum,
            "checksum from config VMO does not match expected checksum"
        );
        let fidl_config: FidlConfig = unpersist(&config_bytes[fidl_start..])
            .expect("must be able to parse bytes as config FIDL");
        Self {
            bredr_connectable: fidl_config.bredr_connectable,
            bredr_security_mode: fidl_config.bredr_security_mode,
            le_background_scanning: fidl_config.le_background_scanning,
            le_privacy: fidl_config.le_privacy,
            le_security_mode: fidl_config.le_security_mode,
        }
    }
    pub fn record_inspect(&self, inspector_node: &Node) {
        inspector_node.record_bool("bredr_connectable", self.bredr_connectable);
        inspector_node.record_string("bredr_security_mode", &self.bredr_security_mode);
        inspector_node.record_bool("le_background_scanning", self.le_background_scanning);
        inspector_node.record_bool("le_privacy", self.le_privacy);
        inspector_node.record_string("le_security_mode", &self.le_security_mode);
    }
}