mirror of
https://github.com/kata-containers/kata-containers.git
synced 2025-04-29 04:04:45 +00:00
utils: Add utility function to fetch the kernel version.
Add functionality to get kernel version and related unit tests. This is intended to be used in the kata-env command going forward. Fixes: #5688 Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
This commit is contained in:
Archana Shinde
parent
b8dbb35bb7
commit
e80a9f09fa
222
src/tools/kata-ctl/Cargo.lock
generated
222
src/tools/kata-ctl/Cargo.lock
generated
@ -100,6 +100,22 @@ dependencies = [
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"os_str_bytes",
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]
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[[package]]
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name = "core-foundation"
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version = "0.9.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "194a7a9e6de53fa55116934067c844d9d749312f75c6f6d0980e8c252f8c2146"
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dependencies = [
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"core-foundation-sys",
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"libc",
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]
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[[package]]
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name = "core-foundation-sys"
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version = "0.8.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
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[[package]]
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name = "encoding_rs"
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version = "0.8.31"
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@ -109,12 +125,36 @@ dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "fastrand"
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version = "1.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a7a407cfaa3385c4ae6b23e84623d48c2798d06e3e6a1878f7f59f17b3f86499"
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dependencies = [
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"instant",
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]
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[[package]]
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name = "fnv"
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version = "1.0.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
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[[package]]
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name = "foreign-types"
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version = "0.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
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dependencies = [
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"foreign-types-shared",
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]
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[[package]]
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name = "foreign-types-shared"
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version = "0.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
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[[package]]
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name = "form_urlencoded"
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version = "1.1.0"
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@ -283,6 +323,19 @@ dependencies = [
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"tokio-rustls",
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]
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[[package]]
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name = "hyper-tls"
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version = "0.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d6183ddfa99b85da61a140bea0efc93fdf56ceaa041b37d553518030827f9905"
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dependencies = [
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"bytes",
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"hyper",
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"native-tls",
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"tokio",
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"tokio-native-tls",
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]
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[[package]]
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name = "idna"
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version = "0.3.0"
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@ -303,6 +356,15 @@ dependencies = [
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"hashbrown",
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]
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[[package]]
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name = "instant"
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version = "0.1.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
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dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "ipnet"
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version = "2.5.0"
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@ -335,9 +397,16 @@ dependencies = [
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"reqwest",
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"semver",
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"serde_json",
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"tempfile",
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"thiserror",
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]
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[[package]]
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name = "lazy_static"
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version = "1.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
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[[package]]
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name = "libc"
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version = "0.2.135"
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@ -386,6 +455,24 @@ dependencies = [
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"windows-sys",
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]
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[[package]]
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name = "native-tls"
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version = "0.2.10"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fd7e2f3618557f980e0b17e8856252eee3c97fa12c54dff0ca290fb6266ca4a9"
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dependencies = [
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"lazy_static",
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"libc",
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"log",
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"openssl",
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"openssl-probe",
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"openssl-sys",
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"schannel",
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"security-framework",
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"security-framework-sys",
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"tempfile",
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]
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[[package]]
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name = "nix"
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version = "0.24.2"
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@ -428,6 +515,51 @@ version = "1.15.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e82dad04139b71a90c080c8463fe0dc7902db5192d939bd0950f074d014339e1"
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[[package]]
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name = "openssl"
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version = "0.10.42"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "12fc0523e3bd51a692c8850d075d74dc062ccf251c0110668cbd921917118a13"
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dependencies = [
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"bitflags",
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"cfg-if",
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"foreign-types",
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"libc",
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"once_cell",
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"openssl-macros",
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"openssl-sys",
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]
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[[package]]
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name = "openssl-macros"
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version = "0.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b501e44f11665960c7e7fcf062c7d96a14ade4aa98116c004b2e37b5be7d736c"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "openssl-probe"
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version = "0.1.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
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[[package]]
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name = "openssl-sys"
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version = "0.9.77"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b03b84c3b2d099b81f0953422b4d4ad58761589d0229b5506356afca05a3670a"
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dependencies = [
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"autocfg",
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"cc",
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"libc",
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"pkg-config",
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"vcpkg",
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]
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[[package]]
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name = "os_str_bytes"
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version = "6.3.0"
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@ -452,6 +584,12 @@ version = "0.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
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[[package]]
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name = "pkg-config"
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version = "0.3.26"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6ac9a59f73473f1b8d852421e59e64809f025994837ef743615c6d0c5b305160"
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[[package]]
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name = "privdrop"
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version = "0.5.2"
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@ -504,6 +642,24 @@ dependencies = [
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"proc-macro2",
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]
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[[package]]
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name = "redox_syscall"
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version = "0.2.16"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
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dependencies = [
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"bitflags",
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]
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[[package]]
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name = "remove_dir_all"
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version = "0.5.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3acd125665422973a33ac9d3dd2df85edad0f4ae9b00dafb1a05e43a9f5ef8e7"
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dependencies = [
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"winapi",
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]
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[[package]]
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name = "reqwest"
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version = "0.11.12"
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@ -520,10 +676,12 @@ dependencies = [
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"http-body",
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"hyper",
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"hyper-rustls",
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"hyper-tls",
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"ipnet",
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"js-sys",
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"log",
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"mime",
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"native-tls",
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"once_cell",
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"percent-encoding",
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"pin-project-lite",
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@ -533,6 +691,7 @@ dependencies = [
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"serde_json",
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"serde_urlencoded",
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"tokio",
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"tokio-native-tls",
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"tokio-rustls",
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"tower-service",
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"url",
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@ -585,6 +744,16 @@ version = "1.0.11"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4501abdff3ae82a1c1b477a17252eb69cee9e66eb915c1abaa4f44d873df9f09"
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[[package]]
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name = "schannel"
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version = "0.1.20"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "88d6731146462ea25d9244b2ed5fd1d716d25c52e4d54aa4fb0f3c4e9854dbe2"
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dependencies = [
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"lazy_static",
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"windows-sys",
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]
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[[package]]
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name = "sct"
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version = "0.7.0"
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@ -595,6 +764,29 @@ dependencies = [
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"untrusted",
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]
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[[package]]
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name = "security-framework"
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version = "2.7.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2bc1bb97804af6631813c55739f771071e0f2ed33ee20b68c86ec505d906356c"
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dependencies = [
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"bitflags",
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"core-foundation",
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"core-foundation-sys",
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"libc",
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"security-framework-sys",
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]
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[[package]]
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name = "security-framework-sys"
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version = "2.6.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0160a13a177a45bfb43ce71c01580998474f556ad854dcbca936dd2841a5c556"
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dependencies = [
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"core-foundation-sys",
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"libc",
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]
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[[package]]
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name = "semver"
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version = "1.0.14"
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@ -672,6 +864,20 @@ dependencies = [
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"unicode-ident",
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]
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[[package]]
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name = "tempfile"
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version = "3.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5cdb1ef4eaeeaddc8fbd371e5017057064af0911902ef36b39801f67cc6d79e4"
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dependencies = [
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"cfg-if",
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"fastrand",
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"libc",
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"redox_syscall",
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"remove_dir_all",
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"winapi",
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]
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[[package]]
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name = "termcolor"
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version = "1.1.3"
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@ -739,6 +945,16 @@ dependencies = [
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"winapi",
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]
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[[package]]
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name = "tokio-native-tls"
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version = "0.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f7d995660bd2b7f8c1568414c1126076c13fbb725c40112dc0120b78eb9b717b"
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dependencies = [
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"native-tls",
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"tokio",
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]
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[[package]]
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name = "tokio-rustls"
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version = "0.23.4"
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@ -834,6 +1050,12 @@ dependencies = [
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"percent-encoding",
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]
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[[package]]
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name = "vcpkg"
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version = "0.2.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
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[[package]]
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name = "version_check"
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version = "0.9.4"
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@ -28,3 +28,4 @@ reqwest = { version = "0.11", default-features = false, features = ["json", "blo
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[dev-dependencies]
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semver = "1.0.12"
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tempfile = "3.1.0"
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@ -5,7 +5,8 @@
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#![allow(dead_code)]
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use anyhow::{anyhow, Result};
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use anyhow::{anyhow, Context, Result};
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use std::fs;
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const NON_PRIV_USER: &str = "nobody";
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@ -21,13 +22,73 @@ pub fn drop_privs() -> Result<()> {
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Ok(())
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}
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const PROC_VERSION_FILE: &str = "/proc/version";
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pub fn get_kernel_version(proc_version_file: &str) -> Result<String> {
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let contents = fs::read_to_string(proc_version_file)
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.context(format!("Failed to read file {}", proc_version_file))?;
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let fields: Vec<&str> = contents.split_whitespace().collect();
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if fields.len() < 3 {
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return Err(anyhow!("unexpected contents in file {}", proc_version_file));
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}
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let kernel_version = String::from(fields[2]);
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Ok(kernel_version)
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use std::io::Write;
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use tempfile::tempdir;
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#[test]
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fn test_drop_privs() {
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let res = drop_privs();
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assert!(res.is_ok());
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}
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#[test]
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fn test_kernel_version_empty_input() {
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let res = get_kernel_version("").unwrap_err().to_string();
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let err_msg = format!("Failed to read file {}", "");
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assert_eq!(res, err_msg);
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}
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#[test]
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fn test_kernel_version_valid_input() {
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let dir = tempdir().unwrap();
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let file_path = dir.path().join("proc-version");
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let path = file_path.clone();
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let mut file = fs::File::create(file_path).unwrap();
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writeln!(
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file,
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"Linux version 5.15.0-75-generic (buildd@lcy02-amd64-045)"
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)
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.unwrap();
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let kernel = get_kernel_version(path.to_str().unwrap()).unwrap();
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assert_eq!(kernel, "5.15.0-75-generic");
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}
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#[test]
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fn test_kernel_version_system_input() {
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let res = get_kernel_version(PROC_VERSION_FILE);
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assert!(res.is_ok());
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}
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#[test]
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fn test_kernel_version_invalid_input() {
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let dir = tempdir().unwrap();
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let file_path = dir.path().join("proc-version");
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let path = file_path.clone();
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let mut file = fs::File::create(file_path).unwrap();
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writeln!(file, "Linux-version-5.15.0-75-generic").unwrap();
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let actual = get_kernel_version(path.to_str().unwrap())
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.unwrap_err()
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.to_string();
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let expected = format!("unexpected contents in file {}", path.to_str().unwrap());
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assert_eq!(actual, expected);
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}
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}
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