pkg_cache_config/
config_lib_rust_config_lib_source.rs

1use fidl::unpersist;
2use fidl_cf_sc_internal_pkgcacheconfig::Config as FidlConfig;
3use fuchsia_component_config::{Config as ComponentConfig, Error};
4use fuchsia_inspect::Node;
5use std::convert::TryInto;
6const EXPECTED_CHECKSUM: &[u8] = &[
7    0x1b, 0x95, 0x9f, 0xf1, 0x75, 0xdf, 0x17, 0x8b, 0xed, 0xfe, 0x4d, 0xbb, 0x4e, 0xea, 0x8d, 0xed,
8    0x14, 0x46, 0x32, 0xf5, 0xa1, 0xa7, 0x00, 0xef, 0x37, 0x9d, 0xad, 0x93, 0x67, 0x16, 0x33, 0xac,
9];
10#[derive(Debug)]
11pub struct Config {
12    pub all_packages_executable: bool,
13    pub enable_upgradable_packages: bool,
14    pub system_image_hash: String,
15    pub use_system_image: bool,
16}
17impl Config {
18    #[doc = r" Take the config startup handle and parse its contents."]
19    #[doc = r""]
20    #[doc = r" # Panics"]
21    #[doc = r""]
22    #[doc = r" If the config startup handle was already taken or if it is not valid."]
23    pub fn take_from_startup_handle() -> Self {
24        <Self as ComponentConfig>::take_from_startup_handle()
25    }
26    #[doc = r" Parse `Self` from `vmo`."]
27    pub fn from_vmo(vmo: &zx::Vmo) -> Result<Self, Error> {
28        <Self as ComponentConfig>::from_vmo(vmo)
29    }
30    #[doc = r" Parse `Self` from `bytes`."]
31    pub fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
32        <Self as ComponentConfig>::from_bytes(bytes)
33    }
34    pub fn record_inspect(&self, inspector_node: &Node) {
35        <Self as ComponentConfig>::record_inspect(self, inspector_node)
36    }
37}
38impl ComponentConfig for Config {
39    #[doc = r" Parse `Self` from `bytes`."]
40    fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
41        let (checksum_len_bytes, bytes) = bytes.split_at_checked(2).ok_or(Error::TooFewBytes)?;
42        let checksum_len_bytes: [u8; 2] =
43            checksum_len_bytes.try_into().expect("previous call guaranteed 2 element slice");
44        let checksum_length = u16::from_le_bytes(checksum_len_bytes) as usize;
45        let (observed_checksum, bytes) =
46            bytes.split_at_checked(checksum_length).ok_or(Error::TooFewBytes)?;
47        if observed_checksum != EXPECTED_CHECKSUM {
48            return Err(Error::ChecksumMismatch {
49                expected_checksum: EXPECTED_CHECKSUM.to_vec(),
50                observed_checksum: observed_checksum.to_vec(),
51            });
52        }
53        let fidl_config: FidlConfig = unpersist(bytes).map_err(Error::Unpersist)?;
54        Ok(Self {
55            all_packages_executable: fidl_config.all_packages_executable,
56            enable_upgradable_packages: fidl_config.enable_upgradable_packages,
57            system_image_hash: fidl_config.system_image_hash,
58            use_system_image: fidl_config.use_system_image,
59        })
60    }
61    fn record_inspect(&self, inspector_node: &Node) {
62        inspector_node.record_bool("all_packages_executable", self.all_packages_executable);
63        inspector_node.record_bool("enable_upgradable_packages", self.enable_upgradable_packages);
64        inspector_node.record_string("system_image_hash", &self.system_image_hash);
65        inspector_node.record_bool("use_system_image", self.use_system_image);
66    }
67}
pkg_cache_config/config_lib_rust_config_lib_source.rs

pkg_cache_config/
config_lib_rust_config_lib_source.rs
