mirror of https://github.com/ekzhang/bore.git
use framed codecs to avoid unbounded buffer (#33)
* using stream * fix tests * 💄 * 💄 fix review comments * clean up buffered data * 💄 fix review comments * Refactor Delimited to be its own struct * Add very_long_frame test to ensure behavior Co-authored-by: Eric Zhang <ekzhang1@gmail.com>
This commit is contained in:
Prasanth
GitHub
parent
e61362915d
commit
9cd43f458a
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@ -54,9 +54,9 @@ checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
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[[package]]
|
||||
name = "backtrace"
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||||
version = "0.3.64"
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||||
version = "0.3.65"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5e121dee8023ce33ab248d9ce1493df03c3b38a659b240096fcbd7048ff9c31f"
|
||||
checksum = "11a17d453482a265fd5f8479f2a3f405566e6ca627837aaddb85af8b1ab8ef61"
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dependencies = [
|
||||
"addr2line",
|
||||
"cc",
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||||
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@ -89,6 +89,7 @@ dependencies = [
|
|||
"anyhow",
|
||||
"clap",
|
||||
"dashmap",
|
||||
"futures-util",
|
||||
"hex",
|
||||
"hmac",
|
||||
"lazy_static",
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||||
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@ -97,6 +98,7 @@ dependencies = [
|
|||
"serde_json",
|
||||
"sha2",
|
||||
"tokio",
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||||
"tokio-util",
|
||||
"tracing",
|
||||
"tracing-subscriber",
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||||
"uuid",
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||||
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@ -122,16 +124,16 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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|
||||
[[package]]
|
||||
name = "clap"
|
||||
version = "3.1.8"
|
||||
version = "3.1.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "71c47df61d9e16dc010b55dba1952a57d8c215dbb533fd13cdd13369aac73b1c"
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checksum = "6aad2534fad53df1cc12519c5cda696dd3e20e6118a027e24054aea14a0bdcbe"
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dependencies = [
|
||||
"atty",
|
||||
"bitflags",
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||||
"clap_derive",
|
||||
"clap_lex",
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||||
"indexmap",
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||||
"lazy_static",
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||||
"os_str_bytes",
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"strsim",
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"termcolor",
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"textwrap",
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@ -150,6 +152,15 @@ dependencies = [
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"syn",
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||||
]
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[[package]]
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||||
name = "clap_lex"
|
||||
version = "0.1.1"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "189ddd3b5d32a70b35e7686054371742a937b0d99128e76dde6340210e966669"
|
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dependencies = [
|
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"os_str_bytes",
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]
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[[package]]
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name = "cpufeatures"
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version = "0.2.2"
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@ -191,6 +202,50 @@ dependencies = [
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"subtle",
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]
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[[package]]
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name = "futures-core"
|
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version = "0.3.21"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0c09fd04b7e4073ac7156a9539b57a484a8ea920f79c7c675d05d289ab6110d3"
|
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|
||||
[[package]]
|
||||
name = "futures-macro"
|
||||
version = "0.3.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "33c1e13800337f4d4d7a316bf45a567dbcb6ffe087f16424852d97e97a91f512"
|
||||
dependencies = [
|
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"proc-macro2",
|
||||
"quote",
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||||
"syn",
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]
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[[package]]
|
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name = "futures-sink"
|
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version = "0.3.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "21163e139fa306126e6eedaf49ecdb4588f939600f0b1e770f4205ee4b7fa868"
|
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|
||||
[[package]]
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name = "futures-task"
|
||||
version = "0.3.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "57c66a976bf5909d801bbef33416c41372779507e7a6b3a5e25e4749c58f776a"
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|
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[[package]]
|
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name = "futures-util"
|
||||
version = "0.3.21"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d8b7abd5d659d9b90c8cba917f6ec750a74e2dc23902ef9cd4cc8c8b22e6036a"
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dependencies = [
|
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"futures-core",
|
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"futures-macro",
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"futures-sink",
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"futures-task",
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"pin-project-lite",
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"pin-utils",
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"slab",
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]
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[[package]]
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name = "generic-array"
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version = "0.14.5"
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@ -278,9 +333,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
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[[package]]
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name = "libc"
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version = "0.2.123"
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version = "0.2.124"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "cb691a747a7ab48abc15c5b42066eaafde10dc427e3b6ee2a1cf43db04c763bd"
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checksum = "21a41fed9d98f27ab1c6d161da622a4fa35e8a54a8adc24bbf3ddd0ef70b0e50"
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[[package]]
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name = "lock_api"
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@ -309,12 +364,11 @@ checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
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[[package]]
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name = "miniz_oxide"
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version = "0.4.4"
|
||||
version = "0.5.1"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a92518e98c078586bc6c934028adcca4c92a53d6a958196de835170a01d84e4b"
|
||||
checksum = "d2b29bd4bc3f33391105ebee3589c19197c4271e3e5a9ec9bfe8127eeff8f082"
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dependencies = [
|
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"adler",
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"autocfg",
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]
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[[package]]
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@ -361,9 +415,9 @@ dependencies = [
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[[package]]
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name = "object"
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version = "0.27.1"
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version = "0.28.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "67ac1d3f9a1d3616fd9a60c8d74296f22406a238b6a72f5cc1e6f314df4ffbf9"
|
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checksum = "40bec70ba014595f99f7aa110b84331ffe1ee9aece7fe6f387cc7e3ecda4d456"
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dependencies = [
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"memchr",
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]
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@ -379,9 +433,6 @@ name = "os_str_bytes"
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version = "6.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8e22443d1643a904602595ba1cd8f7d896afe56d26712531c5ff73a15b2fbf64"
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dependencies = [
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"memchr",
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]
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[[package]]
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name = "parking_lot"
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@ -412,6 +463,12 @@ version = "0.2.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e280fbe77cc62c91527259e9442153f4688736748d24660126286329742b4c6c"
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|
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[[package]]
|
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name = "pin-utils"
|
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version = "0.1.0"
|
||||
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 = "proc-macro-error"
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version = "1.0.4"
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@ -560,6 +617,12 @@ dependencies = [
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"lazy_static",
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]
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[[package]]
|
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name = "slab"
|
||||
version = "0.4.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "eb703cfe953bccee95685111adeedb76fabe4e97549a58d16f03ea7b9367bb32"
|
||||
|
||||
[[package]]
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name = "smallvec"
|
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version = "1.8.0"
|
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|
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@ -652,10 +715,24 @@ dependencies = [
|
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]
|
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|
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[[package]]
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name = "tracing"
|
||||
version = "0.1.33"
|
||||
name = "tokio-util"
|
||||
version = "0.7.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "80b9fa4360528139bc96100c160b7ae879f5567f49f1782b0b02035b0358ebf3"
|
||||
checksum = "0edfdeb067411dba2044da6d1cb2df793dd35add7888d73c16e3381ded401764"
|
||||
dependencies = [
|
||||
"bytes",
|
||||
"futures-core",
|
||||
"futures-sink",
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"pin-project-lite",
|
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"tokio",
|
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"tracing",
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]
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[[package]]
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name = "tracing"
|
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version = "0.1.34"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "5d0ecdcb44a79f0fe9844f0c4f33a342cbcbb5117de8001e6ba0dc2351327d09"
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dependencies = [
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"cfg-if",
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"pin-project-lite",
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@ -676,9 +753,9 @@ dependencies = [
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[[package]]
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name = "tracing-core"
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version = "0.1.25"
|
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version = "0.1.26"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6dfce9f3241b150f36e8e54bb561a742d5daa1a47b5dd9a5ce369fd4a4db2210"
|
||||
checksum = "f54c8ca710e81886d498c2fd3331b56c93aa248d49de2222ad2742247c60072f"
|
||||
dependencies = [
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"lazy_static",
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"valuable",
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@ -19,12 +19,14 @@ path = "src/main.rs"
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anyhow = { version = "1.0.56", features = ["backtrace"] }
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clap = { version = "3.1.8", features = ["derive", "env"] }
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dashmap = "5.2.0"
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futures-util = { version = "0.3.21", features = ["sink"] }
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hex = "0.4.3"
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hmac = "0.12.1"
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serde = { version = "1.0.136", features = ["derive"] }
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serde_json = "1.0.79"
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sha2 = "0.10.2"
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tokio = { version = "1.17.0", features = ["rt-multi-thread", "io-util", "macros", "net", "time"] }
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||||
tokio-util = { version = "0.7.1", features = ["codec"] }
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tracing = "0.1.32"
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tracing-subscriber = "0.3.10"
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uuid = { version = "0.8.2", features = ["serde", "v4"] }
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20
src/auth.rs
20
src/auth.rs
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@ -3,10 +3,10 @@
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use anyhow::{bail, ensure, Result};
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use hmac::{Hmac, Mac};
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use sha2::{Digest, Sha256};
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use tokio::io::{AsyncBufRead, AsyncWrite};
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use tokio::io::{AsyncRead, AsyncWrite};
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use uuid::Uuid;
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use crate::shared::{recv_json_timeout, send_json, ClientMessage, ServerMessage};
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use crate::shared::{ClientMessage, Delimited, ServerMessage};
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/// Wrapper around a MAC used for authenticating clients that have a secret.
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pub struct Authenticator(Hmac<Sha256>);
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@ -48,13 +48,13 @@ impl Authenticator {
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}
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/// As the server, send a challenge to the client and validate their response.
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pub async fn server_handshake(
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pub async fn server_handshake<T: AsyncRead + AsyncWrite + Unpin>(
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&self,
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stream: &mut (impl AsyncBufRead + AsyncWrite + Unpin),
|
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stream: &mut Delimited<T>,
|
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) -> Result<()> {
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let challenge = Uuid::new_v4();
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send_json(stream, ServerMessage::Challenge(challenge)).await?;
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match recv_json_timeout(stream).await? {
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stream.send(ServerMessage::Challenge(challenge)).await?;
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match stream.recv_timeout().await? {
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Some(ClientMessage::Authenticate(tag)) => {
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ensure!(self.validate(&challenge, &tag), "invalid secret");
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Ok(())
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@ -64,16 +64,16 @@ impl Authenticator {
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}
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/// As the client, answer a challenge to attempt to authenticate with the server.
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pub async fn client_handshake(
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pub async fn client_handshake<T: AsyncRead + AsyncWrite + Unpin>(
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&self,
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stream: &mut (impl AsyncBufRead + AsyncWrite + Unpin),
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stream: &mut Delimited<T>,
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) -> Result<()> {
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let challenge = match recv_json_timeout(stream).await? {
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let challenge = match stream.recv_timeout().await? {
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Some(ServerMessage::Challenge(challenge)) => challenge,
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_ => bail!("expected authentication challenge, but no secret was required"),
|
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};
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let tag = self.answer(&challenge);
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send_json(stream, ClientMessage::Authenticate(tag)).await?;
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stream.send(ClientMessage::Authenticate(tag)).await?;
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Ok(())
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}
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}
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|
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@ -3,20 +3,21 @@
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use std::sync::Arc;
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use anyhow::{bail, Context, Result};
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use tokio::{io::BufReader, net::TcpStream, time::timeout};
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use tokio::io::AsyncWriteExt;
|
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use tokio::{net::TcpStream, time::timeout};
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use tracing::{error, info, info_span, warn, Instrument};
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use uuid::Uuid;
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use crate::auth::Authenticator;
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use crate::shared::{
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proxy, recv_json, recv_json_timeout, send_json, ClientMessage, ServerMessage, CONTROL_PORT,
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NETWORK_TIMEOUT,
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proxy, ClientMessage, Delimited, ServerMessage, CONTROL_PORT, NETWORK_TIMEOUT,
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};
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/// State structure for the client.
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pub struct Client {
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/// Control connection to the server.
|
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conn: Option<BufReader<TcpStream>>,
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conn: Option<Delimited<TcpStream>>,
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|
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/// Destination address of the server.
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to: String,
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|
@ -43,15 +44,14 @@ impl Client {
|
|||
port: u16,
|
||||
secret: Option<&str>,
|
||||
) -> Result<Self> {
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let mut stream = BufReader::new(connect_with_timeout(to, CONTROL_PORT).await?);
|
||||
|
||||
let mut stream = Delimited::new(connect_with_timeout(to, CONTROL_PORT).await?);
|
||||
let auth = secret.map(Authenticator::new);
|
||||
if let Some(auth) = &auth {
|
||||
auth.client_handshake(&mut stream).await?;
|
||||
}
|
||||
|
||||
send_json(&mut stream, ClientMessage::Hello(port)).await?;
|
||||
let remote_port = match recv_json_timeout(&mut stream).await? {
|
||||
stream.send(ClientMessage::Hello(port)).await?;
|
||||
let remote_port = match stream.recv_timeout().await? {
|
||||
Some(ServerMessage::Hello(remote_port)) => remote_port,
|
||||
Some(ServerMessage::Error(message)) => bail!("server error: {message}"),
|
||||
Some(ServerMessage::Challenge(_)) => {
|
||||
|
|
@ -82,10 +82,8 @@ impl Client {
|
|||
pub async fn listen(mut self) -> Result<()> {
|
||||
let mut conn = self.conn.take().unwrap();
|
||||
let this = Arc::new(self);
|
||||
let mut buf = Vec::new();
|
||||
loop {
|
||||
let msg = recv_json(&mut conn, &mut buf).await?;
|
||||
match msg {
|
||||
match conn.recv().await? {
|
||||
Some(ServerMessage::Hello(_)) => warn!("unexpected hello"),
|
||||
Some(ServerMessage::Challenge(_)) => warn!("unexpected challenge"),
|
||||
Some(ServerMessage::Heartbeat) => (),
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||||
|
|
@ -110,14 +108,16 @@ impl Client {
|
|||
|
||||
async fn handle_connection(&self, id: Uuid) -> Result<()> {
|
||||
let mut remote_conn =
|
||||
BufReader::new(connect_with_timeout(&self.to[..], CONTROL_PORT).await?);
|
||||
Delimited::new(connect_with_timeout(&self.to[..], CONTROL_PORT).await?);
|
||||
if let Some(auth) = &self.auth {
|
||||
auth.client_handshake(&mut remote_conn).await?;
|
||||
}
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||||
send_json(&mut remote_conn, ClientMessage::Accept(id)).await?;
|
||||
|
||||
let local_conn = connect_with_timeout(&self.local_host, self.local_port).await?;
|
||||
proxy(local_conn, remote_conn).await?;
|
||||
remote_conn.send(ClientMessage::Accept(id)).await?;
|
||||
let mut local_conn = connect_with_timeout(&self.local_host, self.local_port).await?;
|
||||
let parts = remote_conn.into_parts();
|
||||
debug_assert!(parts.write_buf.is_empty(), "framed write buffer not empty");
|
||||
local_conn.write_all(&parts.read_buf).await?; // mostly of the cases, this will be empty
|
||||
proxy(local_conn, parts.io).await?;
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -6,16 +6,14 @@ use std::time::Duration;
|
|||
|
||||
use anyhow::Result;
|
||||
use dashmap::DashMap;
|
||||
use tokio::io::BufReader;
|
||||
use tokio::io::AsyncWriteExt;
|
||||
use tokio::net::{TcpListener, TcpStream};
|
||||
use tokio::time::{sleep, timeout};
|
||||
use tracing::{info, info_span, warn, Instrument};
|
||||
use uuid::Uuid;
|
||||
|
||||
use crate::auth::Authenticator;
|
||||
use crate::shared::{
|
||||
proxy, recv_json_timeout, send_json, ClientMessage, ServerMessage, CONTROL_PORT,
|
||||
};
|
||||
use crate::shared::{proxy, ClientMessage, Delimited, ServerMessage, CONTROL_PORT};
|
||||
|
||||
/// State structure for the server.
|
||||
pub struct Server {
|
||||
|
|
@ -64,16 +62,16 @@ impl Server {
|
|||
}
|
||||
|
||||
async fn handle_connection(&self, stream: TcpStream) -> Result<()> {
|
||||
let mut stream = BufReader::new(stream);
|
||||
let mut stream = Delimited::new(stream);
|
||||
if let Some(auth) = &self.auth {
|
||||
if let Err(err) = auth.server_handshake(&mut stream).await {
|
||||
warn!(%err, "server handshake failed");
|
||||
send_json(&mut stream, ServerMessage::Error(err.to_string())).await?;
|
||||
stream.send(ServerMessage::Error(err.to_string())).await?;
|
||||
return Ok(());
|
||||
}
|
||||
}
|
||||
|
||||
match recv_json_timeout(&mut stream).await? {
|
||||
match stream.recv_timeout().await? {
|
||||
Some(ClientMessage::Authenticate(_)) => {
|
||||
warn!("unexpected authenticate");
|
||||
Ok(())
|
||||
|
|
@ -88,22 +86,17 @@ impl Server {
|
|||
Ok(listener) => listener,
|
||||
Err(_) => {
|
||||
warn!(?port, "could not bind to local port");
|
||||
send_json(
|
||||
&mut stream,
|
||||
ServerMessage::Error("port already in use".into()),
|
||||
)
|
||||
.await?;
|
||||
stream
|
||||
.send(ServerMessage::Error("port already in use".into()))
|
||||
.await?;
|
||||
return Ok(());
|
||||
}
|
||||
};
|
||||
let port = listener.local_addr()?.port();
|
||||
send_json(&mut stream, ServerMessage::Hello(port)).await?;
|
||||
stream.send(ServerMessage::Hello(port)).await?;
|
||||
|
||||
loop {
|
||||
if send_json(&mut stream, ServerMessage::Heartbeat)
|
||||
.await
|
||||
.is_err()
|
||||
{
|
||||
if stream.send(ServerMessage::Heartbeat).await.is_err() {
|
||||
// Assume that the TCP connection has been dropped.
|
||||
return Ok(());
|
||||
}
|
||||
|
|
@ -123,14 +116,19 @@ impl Server {
|
|||
warn!(%id, "removed stale connection");
|
||||
}
|
||||
});
|
||||
send_json(&mut stream, ServerMessage::Connection(id)).await?;
|
||||
stream.send(ServerMessage::Connection(id)).await?;
|
||||
}
|
||||
}
|
||||
}
|
||||
Some(ClientMessage::Accept(id)) => {
|
||||
info!(%id, "forwarding connection");
|
||||
match self.conns.remove(&id) {
|
||||
Some((_, stream2)) => proxy(stream, stream2).await?,
|
||||
Some((_, mut stream2)) => {
|
||||
let parts = stream.into_parts();
|
||||
debug_assert!(parts.write_buf.is_empty(), "framed write buffer not empty");
|
||||
stream2.write_all(&parts.read_buf).await?;
|
||||
proxy(parts.io, stream2).await?
|
||||
}
|
||||
None => warn!(%id, "missing connection"),
|
||||
}
|
||||
Ok(())
|
||||
|
|
|
|||
|
|
@ -3,16 +3,22 @@
|
|||
use std::time::Duration;
|
||||
|
||||
use anyhow::{Context, Result};
|
||||
use futures_util::{SinkExt, StreamExt};
|
||||
use serde::de::DeserializeOwned;
|
||||
use serde::{Deserialize, Serialize};
|
||||
use tokio::io::{self, AsyncBufRead, AsyncBufReadExt, AsyncRead, AsyncWrite, AsyncWriteExt};
|
||||
use tokio::io::{self, AsyncRead, AsyncWrite};
|
||||
|
||||
use tokio::time::timeout;
|
||||
use tokio_util::codec::{AnyDelimiterCodec, Framed, FramedParts};
|
||||
use tracing::trace;
|
||||
use uuid::Uuid;
|
||||
|
||||
/// TCP port used for control connections with the server.
|
||||
pub const CONTROL_PORT: u16 = 7835;
|
||||
|
||||
/// Maxmium byte length for a JSON frame in the stream.
|
||||
pub const MAX_FRAME_LENGTH: usize = 256;
|
||||
|
||||
/// Timeout for network connections and initial protocol messages.
|
||||
pub const NETWORK_TIMEOUT: Duration = Duration::from_secs(3);
|
||||
|
||||
|
|
@ -48,6 +54,52 @@ pub enum ServerMessage {
|
|||
Error(String),
|
||||
}
|
||||
|
||||
/// Transport stream with JSON frames delimited by null characters.
|
||||
pub struct Delimited<U>(Framed<U, AnyDelimiterCodec>);
|
||||
|
||||
impl<U: AsyncRead + AsyncWrite + Unpin> Delimited<U> {
|
||||
/// Construct a new delimited stream.
|
||||
pub fn new(stream: U) -> Self {
|
||||
let codec = AnyDelimiterCodec::new_with_max_length(vec![0], vec![0], MAX_FRAME_LENGTH);
|
||||
Self(Framed::new(stream, codec))
|
||||
}
|
||||
|
||||
/// Read the next null-delimited JSON instruction from a stream.
|
||||
pub async fn recv<T: DeserializeOwned>(&mut self) -> Result<Option<T>> {
|
||||
trace!("waiting to receive json message");
|
||||
if let Some(next_message) = self.0.next().await {
|
||||
let byte_message = next_message.context("frame error, invalid byte length")?;
|
||||
let serialized_obj = serde_json::from_slice(&byte_message.to_vec())
|
||||
.context("unable to parse message")?;
|
||||
Ok(serialized_obj)
|
||||
} else {
|
||||
Ok(None)
|
||||
}
|
||||
}
|
||||
|
||||
/// Read the next null-delimited JSON instruction, with a default timeout.
|
||||
///
|
||||
/// This is useful for parsing the initial message of a stream for handshake or
|
||||
/// other protocol purposes, where we do not want to wait indefinitely.
|
||||
pub async fn recv_timeout<T: DeserializeOwned>(&mut self) -> Result<Option<T>> {
|
||||
timeout(NETWORK_TIMEOUT, self.recv())
|
||||
.await
|
||||
.context("timed out waiting for initial message")?
|
||||
}
|
||||
|
||||
/// Send a null-terminated JSON instruction on a stream.
|
||||
pub async fn send<T: Serialize>(&mut self, msg: T) -> Result<()> {
|
||||
trace!("sending json message");
|
||||
self.0.send(serde_json::to_string(&msg)?).await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Consume this object, returning current buffers and the inner transport.
|
||||
pub fn into_parts(self) -> FramedParts<U, AnyDelimiterCodec> {
|
||||
self.0.into_parts()
|
||||
}
|
||||
}
|
||||
|
||||
/// Copy data mutually between two read/write streams.
|
||||
pub async fn proxy<S1, S2>(stream1: S1, stream2: S2) -> io::Result<()>
|
||||
where
|
||||
|
|
@ -62,41 +114,3 @@ where
|
|||
}?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Read the next null-delimited JSON instruction from a stream.
|
||||
pub async fn recv_json<T: DeserializeOwned>(
|
||||
reader: &mut (impl AsyncBufRead + Unpin),
|
||||
buf: &mut Vec<u8>,
|
||||
) -> Result<Option<T>> {
|
||||
trace!("waiting to receive json message");
|
||||
buf.clear();
|
||||
reader.read_until(0, buf).await?;
|
||||
if buf.is_empty() {
|
||||
return Ok(None);
|
||||
}
|
||||
if buf.last() == Some(&0) {
|
||||
buf.pop();
|
||||
}
|
||||
Ok(serde_json::from_slice(buf).context("failed to parse JSON")?)
|
||||
}
|
||||
|
||||
/// Read the next null-delimited JSON instruction, with a default timeout.
|
||||
///
|
||||
/// This is useful for parsing the initial message of a stream for handshake or
|
||||
/// other protocol purposes, where we do not want to wait indefinitely.
|
||||
pub async fn recv_json_timeout<T: DeserializeOwned>(
|
||||
reader: &mut (impl AsyncBufRead + Unpin),
|
||||
) -> Result<Option<T>> {
|
||||
timeout(NETWORK_TIMEOUT, recv_json(reader, &mut Vec::new()))
|
||||
.await
|
||||
.context("timed out waiting for initial message")?
|
||||
}
|
||||
|
||||
/// Send a null-terminated JSON instruction on a stream.
|
||||
pub async fn send_json<T: Serialize>(writer: &mut (impl AsyncWrite + Unpin), msg: T) -> Result<()> {
|
||||
trace!("sending json message");
|
||||
let msg = serde_json::to_vec(&msg)?;
|
||||
writer.write_all(&msg).await?;
|
||||
writer.write_all(&[0]).await?;
|
||||
Ok(())
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,14 +1,14 @@
|
|||
use anyhow::Result;
|
||||
use bore_cli::auth::Authenticator;
|
||||
use tokio::io::{self, BufReader};
|
||||
use bore_cli::{auth::Authenticator, shared::Delimited};
|
||||
use tokio::io::{self};
|
||||
|
||||
#[tokio::test]
|
||||
async fn auth_handshake() -> Result<()> {
|
||||
let auth = Authenticator::new("some secret string");
|
||||
|
||||
let (client, server) = io::duplex(8); // Ensure correctness with limited capacity.
|
||||
let mut client = BufReader::new(client);
|
||||
let mut server = BufReader::new(server);
|
||||
let mut client = Delimited::new(client);
|
||||
let mut server = Delimited::new(server);
|
||||
|
||||
tokio::try_join!(
|
||||
auth.client_handshake(&mut client),
|
||||
|
|
@ -24,8 +24,8 @@ async fn auth_handshake_fail() {
|
|||
let auth2 = Authenticator::new("different server secret");
|
||||
|
||||
let (client, server) = io::duplex(8); // Ensure correctness with limited capacity.
|
||||
let mut client = BufReader::new(client);
|
||||
let mut server = BufReader::new(server);
|
||||
let mut client = Delimited::new(client);
|
||||
let mut server = Delimited::new(server);
|
||||
|
||||
let result = tokio::try_join!(
|
||||
auth.client_handshake(&mut client),
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ use std::net::SocketAddr;
|
|||
use std::time::Duration;
|
||||
|
||||
use anyhow::{anyhow, Result};
|
||||
use bore_cli::{client::Client, server::Server};
|
||||
use bore_cli::{client::Client, server::Server, shared::CONTROL_PORT};
|
||||
use lazy_static::lazy_static;
|
||||
use rstest::*;
|
||||
use tokio::io::{AsyncReadExt, AsyncWriteExt};
|
||||
|
|
@ -99,3 +99,21 @@ async fn invalid_address() -> Result<()> {
|
|||
)?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn very_long_frame() -> Result<()> {
|
||||
let _guard = SERIAL_GUARD.lock().await;
|
||||
|
||||
spawn_server(None).await;
|
||||
let mut attacker = TcpStream::connect(("localhost", CONTROL_PORT)).await?;
|
||||
|
||||
// Slowly send a very long frame.
|
||||
for _ in 0..10 {
|
||||
let result = attacker.write_all(&[42u8; 100000]).await;
|
||||
if result.is_err() {
|
||||
return Ok(());
|
||||
}
|
||||
time::sleep(Duration::from_millis(10)).await;
|
||||
}
|
||||
panic!("did not exit after a 1 MB frame");
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue