1use fidl::unpersist;
2use fidl_cf_sc_internal_timekeeperconfig::Config as FidlConfig;
3use fuchsia_inspect::Node;
4use fuchsia_runtime::{take_startup_handle, HandleInfo, HandleType};
5#[derive(Debug)]
6pub struct Config {
7 pub back_off_time_between_pull_samples_sec: i64,
8 pub disable_delays: bool,
9 pub early_exit: bool,
10 pub first_sampling_delay_sec: i64,
11 pub has_always_on_counter: bool,
12 pub has_real_time_clock: bool,
13 pub initial_frequency_ppm: u32,
14 pub max_frequency_error_ppm: u32,
15 pub monitor_time_source_url: String,
16 pub monitor_uses_pull: bool,
17 pub oscillator_error_std_dev_ppm: u32,
18 pub power_topology_integration_enabled: bool,
19 pub primary_time_source_url: String,
20 pub primary_uses_pull: bool,
21 pub serve_fuchsia_time_alarms: bool,
22 pub serve_fuchsia_time_external_adjust: bool,
23 pub serve_test_protocols: bool,
24 pub utc_max_allowed_delta_future_sec: i64,
25 pub utc_max_allowed_delta_past_sec: i64,
26 pub utc_start_at_startup: bool,
27 pub utc_start_at_startup_when_invalid_rtc: bool,
28}
29impl Config {
30 pub fn take_from_startup_handle() -> Self {
31 let config_vmo: zx::Vmo =
32 take_startup_handle(HandleInfo::new(HandleType::ComponentConfigVmo, 0))
33 .expect("Config VMO handle must be provided and cannot already have been taken.")
34 .into();
35 let config_size =
36 config_vmo.get_content_size().expect("must be able to read config vmo content size");
37 assert_ne!(config_size, 0, "config vmo must be non-empty");
38 let config_bytes =
39 config_vmo.read_to_vec(0, config_size).expect("must be able to read config vmo");
40 let checksum_length = u16::from_le_bytes([config_bytes[0], config_bytes[1]]) as usize;
41 let fidl_start = 2 + checksum_length;
42 let observed_checksum = &config_bytes[2..fidl_start];
43 let expected_checksum = vec![
44 0xfc, 0x9e, 0xf3, 0x32, 0x8a, 0xf5, 0x15, 0xde, 0x2a, 0xa7, 0x3f, 0x33, 0xbb, 0x0e,
45 0x65, 0x2c, 0x67, 0xcb, 0x4c, 0xed, 0xaa, 0xe5, 0x3a, 0x51, 0x9c, 0x63, 0x44, 0x8b,
46 0xd9, 0x61, 0x86, 0xcc,
47 ];
48 assert_eq!(
49 observed_checksum, expected_checksum,
50 "checksum from config VMO does not match expected checksum"
51 );
52 let fidl_config: FidlConfig = unpersist(&config_bytes[fidl_start..])
53 .expect("must be able to parse bytes as config FIDL");
54 Self {
55 back_off_time_between_pull_samples_sec: fidl_config
56 .back_off_time_between_pull_samples_sec,
57 disable_delays: fidl_config.disable_delays,
58 early_exit: fidl_config.early_exit,
59 first_sampling_delay_sec: fidl_config.first_sampling_delay_sec,
60 has_always_on_counter: fidl_config.has_always_on_counter,
61 has_real_time_clock: fidl_config.has_real_time_clock,
62 initial_frequency_ppm: fidl_config.initial_frequency_ppm,
63 max_frequency_error_ppm: fidl_config.max_frequency_error_ppm,
64 monitor_time_source_url: fidl_config.monitor_time_source_url,
65 monitor_uses_pull: fidl_config.monitor_uses_pull,
66 oscillator_error_std_dev_ppm: fidl_config.oscillator_error_std_dev_ppm,
67 power_topology_integration_enabled: fidl_config.power_topology_integration_enabled,
68 primary_time_source_url: fidl_config.primary_time_source_url,
69 primary_uses_pull: fidl_config.primary_uses_pull,
70 serve_fuchsia_time_alarms: fidl_config.serve_fuchsia_time_alarms,
71 serve_fuchsia_time_external_adjust: fidl_config.serve_fuchsia_time_external_adjust,
72 serve_test_protocols: fidl_config.serve_test_protocols,
73 utc_max_allowed_delta_future_sec: fidl_config.utc_max_allowed_delta_future_sec,
74 utc_max_allowed_delta_past_sec: fidl_config.utc_max_allowed_delta_past_sec,
75 utc_start_at_startup: fidl_config.utc_start_at_startup,
76 utc_start_at_startup_when_invalid_rtc: fidl_config
77 .utc_start_at_startup_when_invalid_rtc,
78 }
79 }
80 pub fn record_inspect(&self, inspector_node: &Node) {
81 inspector_node.record_int(
82 "back_off_time_between_pull_samples_sec",
83 self.back_off_time_between_pull_samples_sec,
84 );
85 inspector_node.record_bool("disable_delays", self.disable_delays);
86 inspector_node.record_bool("early_exit", self.early_exit);
87 inspector_node.record_int("first_sampling_delay_sec", self.first_sampling_delay_sec);
88 inspector_node.record_bool("has_always_on_counter", self.has_always_on_counter);
89 inspector_node.record_bool("has_real_time_clock", self.has_real_time_clock);
90 inspector_node.record_uint("initial_frequency_ppm", self.initial_frequency_ppm as u64);
91 inspector_node.record_uint("max_frequency_error_ppm", self.max_frequency_error_ppm as u64);
92 inspector_node.record_string("monitor_time_source_url", &self.monitor_time_source_url);
93 inspector_node.record_bool("monitor_uses_pull", self.monitor_uses_pull);
94 inspector_node
95 .record_uint("oscillator_error_std_dev_ppm", self.oscillator_error_std_dev_ppm as u64);
96 inspector_node.record_bool(
97 "power_topology_integration_enabled",
98 self.power_topology_integration_enabled,
99 );
100 inspector_node.record_string("primary_time_source_url", &self.primary_time_source_url);
101 inspector_node.record_bool("primary_uses_pull", self.primary_uses_pull);
102 inspector_node.record_bool("serve_fuchsia_time_alarms", self.serve_fuchsia_time_alarms);
103 inspector_node.record_bool(
104 "serve_fuchsia_time_external_adjust",
105 self.serve_fuchsia_time_external_adjust,
106 );
107 inspector_node.record_bool("serve_test_protocols", self.serve_test_protocols);
108 inspector_node
109 .record_int("utc_max_allowed_delta_future_sec", self.utc_max_allowed_delta_future_sec);
110 inspector_node
111 .record_int("utc_max_allowed_delta_past_sec", self.utc_max_allowed_delta_past_sec);
112 inspector_node.record_bool("utc_start_at_startup", self.utc_start_at_startup);
113 inspector_node.record_bool(
114 "utc_start_at_startup_when_invalid_rtc",
115 self.utc_start_at_startup_when_invalid_rtc,
116 );
117 }
118}