feat: First version of broker based WireGuard PSK interface

This allows us to run with minimal priviledges in the Rosenpass process itself

Cargo.lock

@@ -179,7 +179,7 @@ dependencies = [
  "regex",
  "rustc-hash",
  "shlex",
- "syn",
+ "syn 2.0.39",
  "which",
 ]
 
@@ -216,6 +216,12 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
+[[package]]
+name = "bytes"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2bd12c1caf447e69cd4528f47f94d203fd2582878ecb9e9465484c4148a8223"
+
 [[package]]
 name = "cast"
 version = "0.3.0"
@@ -328,7 +334,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.39",
 ]
 
 [[package]]
@@ -361,6 +367,16 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
 
+[[package]]
+name = "command-fds"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f190f3c954f7bca3c6296d0ec561c739bdbe6c7e990294ed168d415f6e1b5b01"
+dependencies = [
+ "nix",
+ "thiserror",
+]
+
 [[package]]
 name = "core2"
 version = "0.4.0"
@@ -448,6 +464,41 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "darling"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f2c43f534ea4b0b049015d00269734195e6d3f0f6635cb692251aca6f9f8b3c"
+dependencies = [
+ "darling_core",
+ "darling_macro",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e91455b86830a1c21799d94524df0845183fa55bafd9aa137b01c7d1065fa36"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29b5acf0dea37a7f66f7b25d2c5e93fd46f8f6968b1a5d7a3e02e97768afc95a"
+dependencies = [
+ "darling_core",
+ "quote",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "dary_heap"
 version = "0.3.6"
@@ -462,7 +513,38 @@ checksum = "67e77553c4162a157adbf834ebae5b415acbecbeafc7a74b0e886657506a7611"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.39",
+]
+
+[[package]]
+name = "derive_builder"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d13202debe11181040ae9063d739fa32cfcaaebe2275fe387703460ae2365b30"
+dependencies = [
+ "derive_builder_macro",
+]
+
+[[package]]
+name = "derive_builder_core"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "66e616858f6187ed828df7c64a6d71720d83767a7f19740b2d1b6fe6327b36e5"
+dependencies = [
+ "darling",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "derive_builder_macro"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58a94ace95092c5acb1e97a7e846b310cfbd499652f72297da7493f618a98d73"
+dependencies = [
+ "derive_builder_core",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -514,7 +596,7 @@ checksum = "d4029edd3e734da6fe05b6cd7bd2960760a616bd2ddd0d59a0124746d6272af0"
 dependencies = [
  "cfg-if",
  "libc",
- "redox_syscall",
+ "redox_syscall 0.3.5",
  "windows-sys 0.48.0",
 ]
 
@@ -528,6 +610,12 @@ dependencies = [
  "miniz_oxide",
 ]
 
+[[package]]
+name = "fnv"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.2.1"
@@ -623,6 +711,12 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
 
+[[package]]
+name = "ident_case"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+
 [[package]]
 name = "idna"
 version = "0.5.0"
@@ -783,6 +877,16 @@ version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c4cd1a83af159aa67994778be9070f0ae1bd732942279cabb14f86f986a21456"
 
+[[package]]
+name = "lock_api"
+version = "0.4.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c168f8615b12bc01f9c17e2eb0cc07dcae1940121185446edc3744920e8ef45"
+dependencies = [
+ "autocfg",
+ "scopeguard",
+]
+
 [[package]]
 name = "log"
 version = "0.4.20"
@@ -837,6 +941,42 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "neli"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1805440578ced23f85145d00825c0a831e43c587132a90e100552172543ae30"
+dependencies = [
+ "byteorder",
+ "libc",
+ "log",
+ "neli-proc-macros",
+]
+
+[[package]]
+name = "neli-proc-macros"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c168194d373b1e134786274020dae7fc5513d565ea2ebb9bc9ff17ffb69106d4"
+dependencies = [
+ "either",
+ "proc-macro2",
+ "quote",
+ "serde",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "nix"
+version = "0.27.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2eb04e9c688eff1c89d72b407f168cf79bb9e867a9d3323ed6c01519eb9cc053"
+dependencies = [
+ "bitflags 2.4.1",
+ "cfg-if",
+ "libc",
+]
+
 [[package]]
 name = "nom"
 version = "7.1.3"
@@ -856,6 +996,16 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "num_cpus"
+version = "1.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4161fcb6d602d4d2081af7c3a45852d875a03dd337a6bfdd6e06407b61342a43"
+dependencies = [
+ "hermit-abi 0.3.3",
+ "libc",
+]
+
 [[package]]
 name = "object"
 version = "0.32.1"
@@ -895,6 +1045,29 @@ version = "6.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2355d85b9a3786f481747ced0e0ff2ba35213a1f9bd406ed906554d7af805a1"
 
+[[package]]
+name = "parking_lot"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
+dependencies = [
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.9.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c42a9226546d68acdd9c0a280d17ce19bfe27a46bf68784e4066115788d008e"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "redox_syscall 0.4.1",
+ "smallvec",
+ "windows-targets 0.48.5",
+]
+
 [[package]]
 name = "paste"
 version = "1.0.14"
@@ -913,6 +1086,12 @@ version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
 
+[[package]]
+name = "pin-project-lite"
+version = "0.2.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8afb450f006bf6385ca15ef45d71d2288452bc3683ce2e2cacc0d18e4be60b58"
+
 [[package]]
 name = "pkg-config"
 version = "0.3.27"
@@ -960,7 +1139,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ae005bd773ab59b4725093fd7df83fd7892f7d8eafb48dbd7de6e024e4215f9d"
 dependencies = [
  "proc-macro2",
- "syn",
+ "syn 2.0.39",
 ]
 
 [[package]]
@@ -1049,6 +1228,15 @@ dependencies = [
  "bitflags 1.3.2",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4722d768eff46b75989dd134e5c353f0d6296e5aaa3132e776cbdb56be7731aa"
+dependencies = [
+ "bitflags 1.3.2",
+]
+
 [[package]]
 name = "regex"
 version = "1.10.2"
@@ -1104,6 +1292,7 @@ version = "0.2.1"
 dependencies = [
  "anyhow",
  "clap 4.4.10",
+ "command-fds",
  "criterion",
  "env_logger",
  "libsodium-sys-stable",
@@ -1120,6 +1309,8 @@ dependencies = [
  "rosenpass-sodium",
  "rosenpass-to",
  "rosenpass-util",
+ "rosenpass-wireguard-broker",
+ "rustix",
  "serde",
  "stacker",
  "static_assertions",
@@ -1225,6 +1416,25 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "base64",
+ "rustix",
+]
+
+[[package]]
+name = "rosenpass-wireguard-broker"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "clap 4.4.10",
+ "env_logger",
+ "log",
+ "mio",
+ "paste",
+ "rosenpass-lenses",
+ "rosenpass-to",
+ "rosenpass-util",
+ "thiserror",
+ "tokio",
+ "wireguard-uapi",
 ]
 
 [[package]]
@@ -1241,9 +1451,9 @@ checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
 
 [[package]]
 name = "rustix"
-version = "0.38.26"
+version = "0.38.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9470c4bf8246c8daf25f9598dca807fb6510347b1e1cfa55749113850c79d88a"
+checksum = "bfeae074e687625746172d639330f1de242a178bf3189b51e35a7a21573513ac"
 dependencies = [
  "bitflags 2.4.1",
  "errno",
@@ -1322,7 +1532,7 @@ checksum = "43576ca501357b9b071ac53cdc7da8ef0cbd9493d8df094cd821777ea6e894d3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.39",
 ]
 
 [[package]]
@@ -1351,6 +1561,31 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a7cee0529a6d40f580e7a5e6c495c8fbfe21b7b52795ed4bb5e62cdf92bc6380"
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8229b473baa5980ac72ef434c4415e70c4b5e71b423043adb4ba059f89c99a1"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "smallvec"
+version = "1.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4dccd0940a2dcdf68d092b8cbab7dc0ad8fa938bf95787e1b916b0e3d0e8e970"
+
+[[package]]
+name = "socket2"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b5fac59a5cb5dd637972e5fca70daf0523c9067fcdc4842f053dae04a18f8e9"
+dependencies = [
+ "libc",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "spin"
 version = "0.9.8"
@@ -1382,6 +1617,17 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
+[[package]]
+name = "syn"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "syn"
 version = "2.0.39"
@@ -1442,7 +1688,7 @@ checksum = "266b2e40bc00e5a6c09c3584011e08b06f123c00362c92b975ba9843aaaa14b8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.39",
 ]
 
 [[package]]
@@ -1470,6 +1716,36 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
+[[package]]
+name = "tokio"
+version = "1.34.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d0c014766411e834f7af5b8f4cf46257aab4036ca95e9d2c144a10f59ad6f5b9"
+dependencies = [
+ "backtrace",
+ "bytes",
+ "libc",
+ "mio",
+ "num_cpus",
+ "parking_lot",
+ "pin-project-lite",
+ "signal-hook-registry",
+ "socket2",
+ "tokio-macros",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "tokio-macros"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b8a1e28f2deaa14e508979454cb3a223b10b938b45af148bc0986de36f1923b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.39",
+]
+
 [[package]]
 name = "toml"
 version = "0.7.8"
@@ -1612,7 +1888,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.39",
  "wasm-bindgen-shared",
 ]
 
@@ -1634,7 +1910,7 @@ checksum = "c5353b8dab669f5e10f5bd76df26a9360c748f054f862ff5f3f8aae0c7fb3907"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.39",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -1845,6 +2121,18 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "wireguard-uapi"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89ba4e9811befc20af3b6efb15924a7238ee5e8e8706a196576462a00b9f1af1"
+dependencies = [
+ "derive_builder",
+ "libc",
+ "neli",
+ "thiserror",
+]
+
 [[package]]
 name = "xattr"
 version = "1.0.1"
@@ -1871,7 +2159,7 @@ checksum = "c2f140bda219a26ccc0cdb03dba58af72590c53b22642577d88a927bc5c87d6b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.39",
 ]
 
 [[package]]