1use fidl::unpersist;
2use fidl_cf_sc_internal_driverindexconfig::Config as FidlConfig;
3use fuchsia_component_config::{Config as ComponentConfig, Error};
4use fuchsia_inspect::{ArrayProperty, Node};
5use std::convert::TryInto;
6const EXPECTED_CHECKSUM: &[u8] = &[
7 0x3c, 0x8f, 0x22, 0x9c, 0xa6, 0x41, 0xb9, 0x6e, 0xb8, 0x3e, 0x8c, 0xe1, 0xfd, 0xa9, 0x89, 0xbc,
8 0x75, 0x5b, 0xf0, 0xf0, 0x50, 0xc1, 0x55, 0xc8, 0x1a, 0xeb, 0xb0, 0x34, 0xce, 0x53, 0xe0, 0x43,
9];
10const EXPECTED_CHECKSUM_LENGTH: [u8; 2] = (EXPECTED_CHECKSUM.len() as u16).to_le_bytes();
11#[derive(Debug)]
12pub struct Config {
13 pub base_drivers: Vec<String>,
14 pub bind_eager: Vec<String>,
15 pub boot_drivers: Vec<String>,
16 pub delay_fallback_until_base_drivers_indexed: bool,
17 pub disabled_drivers: Vec<String>,
18 pub driver_load_fuzzer_max_delay_ms: i64,
19 pub enable_driver_load_fuzzer: bool,
20 pub enable_ephemeral_drivers: bool,
21 pub stop_on_idle_timeout_millis: i64,
22}
23impl Config {
24 #[doc = r" Take the config startup handle and parse its contents."]
25 #[doc = r""]
26 #[doc = r" # Panics"]
27 #[doc = r""]
28 #[doc = r" If the config startup handle was already taken or if it is not valid."]
29 pub fn take_from_startup_handle() -> Self {
30 <Self as ComponentConfig>::take_from_startup_handle()
31 }
32 #[doc = r" Parse `Self` from `vmo`."]
33 pub fn from_vmo(vmo: &zx::Vmo) -> Result<Self, Error> {
34 <Self as ComponentConfig>::from_vmo(vmo)
35 }
36 #[doc = r" Parse `Self` from `bytes`."]
37 pub fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
38 <Self as ComponentConfig>::from_bytes(bytes)
39 }
40 pub fn record_inspect(&self, inspector_node: &Node) {
41 <Self as ComponentConfig>::record_inspect(self, inspector_node)
42 }
43}
44impl ComponentConfig for Config {
45 #[doc = r" Parse `Self` from `bytes`."]
46 fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
47 let (checksum_len_bytes, bytes) = bytes.split_at_checked(2).ok_or(Error::TooFewBytes)?;
48 let checksum_len_bytes: [u8; 2] =
49 checksum_len_bytes.try_into().expect("previous call guaranteed 2 element slice");
50 let checksum_length = u16::from_le_bytes(checksum_len_bytes) as usize;
51 let (observed_checksum, bytes) =
52 bytes.split_at_checked(checksum_length).ok_or(Error::TooFewBytes)?;
53 if observed_checksum != EXPECTED_CHECKSUM {
54 return Err(Error::ChecksumMismatch {
55 expected_checksum: EXPECTED_CHECKSUM.to_vec(),
56 observed_checksum: observed_checksum.to_vec(),
57 });
58 }
59 let fidl_config: FidlConfig = unpersist(bytes).map_err(Error::Unpersist)?;
60 Ok(Self {
61 base_drivers: fidl_config.base_drivers,
62 bind_eager: fidl_config.bind_eager,
63 boot_drivers: fidl_config.boot_drivers,
64 delay_fallback_until_base_drivers_indexed: fidl_config
65 .delay_fallback_until_base_drivers_indexed,
66 disabled_drivers: fidl_config.disabled_drivers,
67 driver_load_fuzzer_max_delay_ms: fidl_config.driver_load_fuzzer_max_delay_ms,
68 enable_driver_load_fuzzer: fidl_config.enable_driver_load_fuzzer,
69 enable_ephemeral_drivers: fidl_config.enable_ephemeral_drivers,
70 stop_on_idle_timeout_millis: fidl_config.stop_on_idle_timeout_millis,
71 })
72 }
73 fn to_bytes(&self) -> Result<Vec<u8>, Error> {
74 let fidl_config = FidlConfig {
75 base_drivers: self.base_drivers.clone(),
76 bind_eager: self.bind_eager.clone(),
77 boot_drivers: self.boot_drivers.clone(),
78 delay_fallback_until_base_drivers_indexed: self
79 .delay_fallback_until_base_drivers_indexed
80 .clone(),
81 disabled_drivers: self.disabled_drivers.clone(),
82 driver_load_fuzzer_max_delay_ms: self.driver_load_fuzzer_max_delay_ms.clone(),
83 enable_driver_load_fuzzer: self.enable_driver_load_fuzzer.clone(),
84 enable_ephemeral_drivers: self.enable_ephemeral_drivers.clone(),
85 stop_on_idle_timeout_millis: self.stop_on_idle_timeout_millis.clone(),
86 };
87 let mut fidl_bytes = fidl::persist(&fidl_config).map_err(Error::Persist)?;
88 let mut bytes = Vec::with_capacity(
89 EXPECTED_CHECKSUM_LENGTH.len() + EXPECTED_CHECKSUM.len() + fidl_bytes.len(),
90 );
91 bytes.extend_from_slice(&EXPECTED_CHECKSUM_LENGTH);
92 bytes.extend_from_slice(EXPECTED_CHECKSUM);
93 bytes.append(&mut fidl_bytes);
94 Ok(bytes)
95 }
96 fn record_inspect(&self, inspector_node: &Node) {
97 let arr = inspector_node.create_string_array("base_drivers", self.base_drivers.len());
98 for i in 0..self.base_drivers.len() {
99 arr.set(i, &self.base_drivers[i]);
100 }
101 inspector_node.record(arr);
102 let arr = inspector_node.create_string_array("bind_eager", self.bind_eager.len());
103 for i in 0..self.bind_eager.len() {
104 arr.set(i, &self.bind_eager[i]);
105 }
106 inspector_node.record(arr);
107 let arr = inspector_node.create_string_array("boot_drivers", self.boot_drivers.len());
108 for i in 0..self.boot_drivers.len() {
109 arr.set(i, &self.boot_drivers[i]);
110 }
111 inspector_node.record(arr);
112 inspector_node.record_bool(
113 "delay_fallback_until_base_drivers_indexed",
114 self.delay_fallback_until_base_drivers_indexed,
115 );
116 let arr =
117 inspector_node.create_string_array("disabled_drivers", self.disabled_drivers.len());
118 for i in 0..self.disabled_drivers.len() {
119 arr.set(i, &self.disabled_drivers[i]);
120 }
121 inspector_node.record(arr);
122 inspector_node
123 .record_int("driver_load_fuzzer_max_delay_ms", self.driver_load_fuzzer_max_delay_ms);
124 inspector_node.record_bool("enable_driver_load_fuzzer", self.enable_driver_load_fuzzer);
125 inspector_node.record_bool("enable_ephemeral_drivers", self.enable_ephemeral_drivers);
126 inspector_node.record_int("stop_on_idle_timeout_millis", self.stop_on_idle_timeout_millis);
127 }
128}