wip dns support
This commit is contained in:
Jan Christian Grünhage
parent
3079c0095b
commit
ac69b035b0
GPG key ID:
EEC1170CE56FA2ED
6 changed files with 315 additions and 27 deletions
214
Cargo.lock
generated
214
Cargo.lock
generated
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@ -19,6 +19,12 @@ version = "1.0.56"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4361135be9122e0870de935d7c439aef945b9f9ddd4199a553b5270b49c82a27"
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[[package]]
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name = "arc-swap"
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version = "1.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c5d78ce20460b82d3fa150275ed9d55e21064fc7951177baacf86a145c4a4b1f"
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[[package]]
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name = "async-anyhow-logger"
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version = "0.1.0"
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@ -258,6 +264,24 @@ dependencies = [
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"syn",
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]
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[[package]]
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name = "data-encoding"
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version = "2.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3ee2393c4a91429dffb4bedf19f4d6abf27d8a732c8ce4980305d782e5426d57"
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[[package]]
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name = "enum-as-inner"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "21cdad81446a7f7dc43f6a77409efeb9733d2fa65553efef6018ef257c959b73"
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dependencies = [
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"heck",
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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 = "fern"
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version = "0.6.0"
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@ -407,6 +431,17 @@ dependencies = [
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"libc",
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]
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[[package]]
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name = "hostname"
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version = "0.3.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3c731c3e10504cc8ed35cfe2f1db4c9274c3d35fa486e3b31df46f068ef3e867"
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dependencies = [
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"libc",
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"match_cfg",
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"winapi",
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]
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[[package]]
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name = "http"
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version = "0.2.6"
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@ -476,6 +511,17 @@ version = "1.0.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
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[[package]]
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name = "idna"
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version = "0.2.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "418a0a6fab821475f634efe3ccc45c013f742efe03d853e8d3355d5cb850ecf8"
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dependencies = [
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"matches",
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"unicode-bidi",
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"unicode-normalization",
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]
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[[package]]
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name = "indexmap"
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version = "1.8.1"
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@ -495,6 +541,24 @@ dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "ipconfig"
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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 = "723519edce41262b05d4143ceb95050e4c614f483e78e9fd9e39a8275a84ad98"
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dependencies = [
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"socket2",
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"widestring",
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"winapi",
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"winreg",
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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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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "879d54834c8c76457ef4293a689b2a8c59b076067ad77b15efafbb05f92a592b"
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[[package]]
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name = "itoa"
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version = "1.0.1"
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@ -522,6 +586,12 @@ version = "0.2.121"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "efaa7b300f3b5fe8eb6bf21ce3895e1751d9665086af2d64b42f19701015ff4f"
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[[package]]
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name = "linked-hash-map"
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version = "0.5.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
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[[package]]
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name = "lock_api"
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version = "0.4.7"
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@ -542,6 +612,15 @@ dependencies = [
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"serde",
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]
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[[package]]
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name = "lru-cache"
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version = "0.1.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "31e24f1ad8321ca0e8a1e0ac13f23cb668e6f5466c2c57319f6a5cf1cc8e3b1c"
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dependencies = [
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"linked-hash-map",
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]
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[[package]]
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name = "mach"
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version = "0.3.2"
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@ -551,6 +630,12 @@ dependencies = [
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"libc",
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]
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[[package]]
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name = "match_cfg"
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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 = "ffbee8634e0d45d258acb448e7eaab3fce7a0a467395d4d9f228e3c1f01fb2e4"
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[[package]]
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name = "matches"
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version = "0.1.9"
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@ -699,9 +784,9 @@ dependencies = [
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[[package]]
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name = "once_cell"
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version = "1.10.0"
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version = "1.13.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "87f3e037eac156d1775da914196f0f37741a274155e34a0b7e427c35d2a2ecb9"
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checksum = "18a6dbe30758c9f83eb00cbea4ac95966305f5a7772f3f42ebfc7fc7eddbd8e1"
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[[package]]
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name = "os_str_bytes"
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@ -771,6 +856,7 @@ name = "peshming"
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version = "0.5.1"
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dependencies = [
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"anyhow",
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"arc-swap",
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"async-anyhow-logger",
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"axum",
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"chrono",
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@ -783,11 +869,14 @@ dependencies = [
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"log",
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"metrics",
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"metrics-exporter-prometheus",
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"once_cell",
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"rand",
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"serde",
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"serde_with",
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"tokio",
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"tokio-icmp-echo",
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"toml",
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"trust-dns-resolver",
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]
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[[package]]
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@ -877,6 +966,12 @@ dependencies = [
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"winapi",
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]
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[[package]]
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name = "quick-error"
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version = "1.2.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
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[[package]]
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name = "quote"
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version = "1.0.17"
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@ -934,6 +1029,16 @@ dependencies = [
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"bitflags",
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]
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[[package]]
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name = "resolv-conf"
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version = "0.7.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "52e44394d2086d010551b14b53b1f24e31647570cd1deb0379e2c21b329aba00"
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dependencies = [
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"hostname",
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"quick-error",
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]
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[[package]]
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name = "roff"
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version = "0.2.1"
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@ -1133,15 +1238,33 @@ dependencies = [
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"winapi",
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]
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[[package]]
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name = "tinyvec"
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version = "1.6.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
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dependencies = [
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"tinyvec_macros",
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]
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[[package]]
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name = "tinyvec_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 = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
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[[package]]
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name = "tokio"
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version = "1.17.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2af73ac49756f3f7c01172e34a23e5d0216f6c32333757c2c61feb2bbff5a5ee"
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dependencies = [
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"bytes",
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"libc",
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"memchr",
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"mio",
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"num_cpus",
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"parking_lot 0.12.0",
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"pin-project-lite",
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"socket2",
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"tokio-macros",
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@ -1266,18 +1389,90 @@ dependencies = [
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"lazy_static",
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]
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[[package]]
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name = "trust-dns-proto"
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version = "0.21.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9c31f240f59877c3d4bb3b3ea0ec5a6a0cff07323580ff8c7a605cd7d08b255d"
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dependencies = [
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"async-trait",
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"cfg-if",
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"data-encoding",
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"enum-as-inner",
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"futures-channel",
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"futures-io",
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"futures-util",
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"idna",
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"ipnet",
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"lazy_static",
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"log",
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"rand",
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"smallvec",
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"thiserror",
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"tinyvec",
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"tokio",
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"url",
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]
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[[package]]
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name = "trust-dns-resolver"
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version = "0.21.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e4ba72c2ea84515690c9fcef4c6c660bb9df3036ed1051686de84605b74fd558"
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dependencies = [
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"cfg-if",
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"futures-util",
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"ipconfig",
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"lazy_static",
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"log",
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"lru-cache",
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"parking_lot 0.12.0",
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"resolv-conf",
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"smallvec",
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"thiserror",
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"tokio",
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"trust-dns-proto",
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]
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[[package]]
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name = "try-lock"
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version = "0.2.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "59547bce71d9c38b83d9c0e92b6066c4253371f15005def0c30d9657f50c7642"
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[[package]]
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name = "unicode-bidi"
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version = "0.3.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "099b7128301d285f79ddd55b9a83d5e6b9e97c92e0ea0daebee7263e932de992"
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[[package]]
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name = "unicode-normalization"
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version = "0.1.21"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "854cbdc4f7bc6ae19c820d44abdc3277ac3e1b2b93db20a636825d9322fb60e6"
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dependencies = [
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"tinyvec",
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]
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[[package]]
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name = "unicode-xid"
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version = "0.2.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
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[[package]]
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name = "url"
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version = "2.2.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a507c383b2d33b5fc35d1861e77e6b383d158b2da5e14fe51b83dfedf6fd578c"
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dependencies = [
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"form_urlencoded",
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"idna",
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"matches",
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"percent-encoding",
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]
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[[package]]
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name = "version_check"
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version = "0.9.4"
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@ -1370,6 +1565,12 @@ dependencies = [
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"wasm-bindgen",
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]
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[[package]]
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name = "widestring"
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version = "0.5.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "17882f045410753661207383517a6f62ec3dbeb6a4ed2acce01f0728238d1983"
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[[package]]
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name = "winapi"
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version = "0.3.9"
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@ -1443,3 +1644,12 @@ name = "windows_x86_64_msvc"
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version = "0.34.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d19538ccc21819d01deaf88d6a17eae6596a12e9aafdbb97916fb49896d89de9"
|
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|
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[[package]]
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name = "winreg"
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version = "0.7.0"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "0120db82e8a1e0b9fb3345a539c478767c0048d842860994d96113d5b667bd69"
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dependencies = [
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"winapi",
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]
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@ -12,7 +12,7 @@ build = "build.rs"
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[dependencies]
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toml = "0.5"
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futures = "0.3"
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tokio = { version = "1", features = ["rt-multi-thread", "macros", "time"] }
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tokio = { version = "1", features = ["rt-multi-thread", "macros", "time", "parking_lot"] }
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clap = { version = "3", features = ["derive", "wrap_help"] }
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fern = "0.6"
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log = { version = "0.4", features = ["serde"] }
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@ -26,6 +26,10 @@ async-anyhow-logger = "0.1"
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axum = "0.5"
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metrics = "0.18"
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metrics-exporter-prometheus = { version = "0.9", default-features = false }
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trust-dns-resolver = "0.21.2"
|
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arc-swap = "1.5.0"
|
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once_cell = "1.13.0"
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rand = "0.8.5"
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[build-dependencies]
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clap = { version = "3", features = ["derive", "wrap_help"] }
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|
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3
build.rs
3
build.rs
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@ -23,7 +23,8 @@ use clap::{ArgEnum, CommandFactory};
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use clap_complete::{generate_to, Shell};
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use cli::Cli;
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#[path = "src/cli.rs"] mod cli;
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#[path = "src/cli.rs"]
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mod cli;
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fn main() -> std::io::Result<()> {
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let mut cli = Cli::command();
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@ -12,8 +12,11 @@ listener = "[::]:9898"
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# will ping the primary and secondary IP of cloudflare's 1.1.1.1 DNS service
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# every 500ms, or twice per second.
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[ping.hosts]
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"1.1.1.1" = 500
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"1.0.0.1" = 500
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"192.0.2.142" = 500
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"198.51.100.17" = 500
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"203.0.113.55" = 500
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"2001:DB8::C0:FF:EE" = 500
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"example.org" = 500
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# Configure logging is also possible here instead of using the CLI. If both are
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# specified, the more verbose of the two will be used.
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@ -50,7 +50,23 @@ pub(crate) struct PingConfig {
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pub(crate) timeout: Duration,
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#[serde(default = "default_buckets")]
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pub(crate) bucket_sizes: Vec<f64>,
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pub(crate) hosts: HashMap<std::net::IpAddr, u64>,
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pub(crate) hosts: HashMap<Host, u64>,
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}
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#[derive(Deserialize, Clone, Hash, Eq, PartialEq, Debug)]
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#[serde(untagged)]
|
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pub(crate) enum Host {
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IpAddr(std::net::IpAddr),
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Domain(String),
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}
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impl std::fmt::Display for Host {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
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match self {
|
||||
Host::IpAddr(addr) => write!(f, "{}", addr),
|
||||
Host::Domain(domain) => write!(f, "{}", domain),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn default_timeout() -> Duration {
|
||||
|
|
|
|||
94
src/ping.rs
94
src/ping.rs
|
|
@ -17,22 +17,54 @@
|
|||
* You should have received a copy of the GNU Affero General Public License *
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>. *
|
||||
********************************************************************************/
|
||||
use crate::config::Config;
|
||||
use crate::config::{Config, Host};
|
||||
use anyhow::{Context, Result};
|
||||
use arc_swap::ArcSwap;
|
||||
use async_anyhow_logger::catch;
|
||||
use log::{info, trace};
|
||||
use metrics::histogram;
|
||||
use std::net::IpAddr;
|
||||
use std::time::Duration;
|
||||
use once_cell::sync::OnceCell as SyncOnceCell;
|
||||
use tokio::sync::OnceCell as AsyncOnceCell;
|
||||
use std::{net::IpAddr, sync::Arc, time::Duration, collections::HashMap};
|
||||
use tokio_icmp_echo::{PingFuture, Pinger};
|
||||
use trust_dns_resolver::{TokioAsyncResolver, lookup_ip::LookupIp};
|
||||
|
||||
static PING_IP_TARGETS: SyncOnceCell<HashMap<Host, ArcSwap<Vec<IpAddr>>>> = SyncOnceCell::new();
|
||||
|
||||
async fn pinger() -> Result<&'static Pinger> {
|
||||
static INSTANCE: AsyncOnceCell<Pinger> = AsyncOnceCell::const_new();
|
||||
INSTANCE.get_or_try_init(|| async {
|
||||
Pinger::new().await.context("Couldn't create pinger!")
|
||||
}).await
|
||||
}
|
||||
|
||||
fn resolver() -> Result<&'static TokioAsyncResolver> {
|
||||
static INSTANCE: SyncOnceCell<TokioAsyncResolver> = SyncOnceCell::new();
|
||||
INSTANCE.get_or_try_init(|| {
|
||||
TokioAsyncResolver::tokio_from_system_conf().context("Couldn't start resolver!")
|
||||
})
|
||||
}
|
||||
|
||||
|
||||
pub(crate) async fn start_pinging_hosts(config: &Config) -> Result<()> {
|
||||
let pinger = Pinger::new().await.context("Couldn't create pinger")?;
|
||||
let mut handles = vec![];
|
||||
for (host, interval) in config.ping.hosts.clone() {
|
||||
let mut map = HashMap::new();
|
||||
for (host, _interval) in config.ping.hosts.clone().into_iter() {
|
||||
match host.clone() {
|
||||
Host::IpAddr(addr) => map.insert(host, ArcSwap::new(Arc::new(vec![addr]))),
|
||||
Host::Domain(domain) => {
|
||||
let lookup = get_host_addresses(&domain).await?;
|
||||
map.insert(host, ArcSwap::new(Arc::new(lookup.iter().collect())))
|
||||
},
|
||||
};
|
||||
}
|
||||
PING_IP_TARGETS.set(map).unwrap();
|
||||
for (host, interval) in config.ping.hosts.clone().into_iter() {
|
||||
if let Host::Domain(domain) = host.clone() {
|
||||
tokio::spawn(catch(refresh_host_addresses(&PING_IP_TARGETS.get().unwrap()[&host], domain.clone())));
|
||||
}
|
||||
info!("Spawn ping task for {}", host);
|
||||
handles.push(tokio::spawn(ping_host(
|
||||
pinger.clone(),
|
||||
host,
|
||||
interval,
|
||||
config.ping.timeout,
|
||||
|
|
@ -43,31 +75,53 @@ pub(crate) async fn start_pinging_hosts(config: &Config) -> Result<()> {
|
|||
Ok(())
|
||||
}
|
||||
|
||||
async fn ping_host(pinger: Pinger, host: IpAddr, interval: u64, timeout: Duration) -> Result<()> {
|
||||
let mut pingchain = pinger.chain(host).timeout(timeout);
|
||||
async fn ping_host(host: Host, interval: u64, timeout: Duration) -> Result<()> {
|
||||
let pinger = pinger().await?;
|
||||
let name: String = match host.clone() {
|
||||
Host::IpAddr(addr) => addr.to_string(),
|
||||
Host::Domain(name) => name,
|
||||
};
|
||||
let targets = &PING_IP_TARGETS.get().unwrap()[&host];
|
||||
let mut interval = tokio::time::interval(Duration::from_millis(interval));
|
||||
let host_string = host.to_string();
|
||||
let ident = rand::random();
|
||||
let mut seq_cnt = 0;
|
||||
loop {
|
||||
interval.tick().await;
|
||||
tokio::spawn(catch(handle_ping_result(
|
||||
pingchain.send(),
|
||||
host_string.clone(),
|
||||
timeout,
|
||||
)));
|
||||
for target in &**targets.load() {
|
||||
tokio::spawn(catch(handle_ping_result(
|
||||
pinger.ping(*target, ident, seq_cnt, timeout),
|
||||
name.clone(),
|
||||
target.to_string(),
|
||||
timeout,
|
||||
)));
|
||||
seq_cnt = seq_cnt.wrapping_add(1);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
async fn handle_ping_result(result: PingFuture, host: String, timeout: Duration) -> Result<()> {
|
||||
let pong = result.await.context(format!("Couldn't ping {}", &host))?;
|
||||
async fn refresh_host_addresses(targets: &ArcSwap<Vec<IpAddr>>, name: String) -> Result<()> {
|
||||
loop {
|
||||
let lookup = get_host_addresses(&name).await?;
|
||||
targets.store(Arc::new(lookup.iter().collect()));
|
||||
tokio::time::sleep_until(lookup.valid_until().into()).await;
|
||||
}
|
||||
}
|
||||
|
||||
async fn get_host_addresses(name: &str) -> Result<LookupIp> {
|
||||
Ok(resolver()?.lookup_ip(name).await?)
|
||||
}
|
||||
|
||||
async fn handle_ping_result(result: PingFuture, name: String, ip: String, timeout: Duration) -> Result<()> {
|
||||
let pong = result.await.context(format!("Couldn't ping {}", &name))?;
|
||||
match pong {
|
||||
Some(time) => {
|
||||
let ms = time.as_millis();
|
||||
trace!("Received pong from {} after {} ms", &host, &ms);
|
||||
histogram!("ping_rtt_milliseconds", ms as f64, "target" => host);
|
||||
trace!("Received pong from {} after {} ms", &name, &ms);
|
||||
histogram!("ping_rtt_milliseconds", ms as f64, "target" => name, "ip" => ip);
|
||||
}
|
||||
None => {
|
||||
trace!("Received no response from {} within timeout", &host);
|
||||
histogram!("ping_rtt_milliseconds", timeout.as_millis() as f64, "target" => host);
|
||||
trace!("Received no response from {} within timeout", &name);
|
||||
histogram!("ping_rtt_milliseconds", timeout.as_millis() as f64, "target" => name, "ip" => ip);
|
||||
}
|
||||
};
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue