Implement sending commands via Unix sockets

Cargo.lock

@@ -2,6 +2,15 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "addr2line"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4fa78e18c64fce05e902adecd7a5eed15a5e0a3439f7b0e169f0252214865e3"
+dependencies = [
+ "gimli",
+]
+
 [[package]]
 name = "adler"
 version = "1.0.2"
@@ -10,14 +19,13 @@ checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
 [[package]]
 name = "aes"
-version = "0.7.5"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e8b47f52ea9bae42228d07ec09eb676433d7c4ed1ebdf0f1d1c29ed446f1ab8"
+checksum = "ac1f845298e95f983ff1944b728ae08b8cebab80d684f0a832ed0fc74dfa27e2"
 dependencies = [
  "cfg-if",
  "cipher",
  "cpufeatures",
- "opaque-debug",
 ]
 
 [[package]]
@@ -46,15 +54,15 @@ dependencies = [
 
 [[package]]
 name = "anstyle"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41ed9a86bf92ae6580e0a31281f65a1b1d867c0cc68d5346e2ae128dddfa6a7d"
+checksum = "3a30da5c5f2d5e72842e00bcb57657162cdabef0931f40e2deb9b4140440cecd"
 
 [[package]]
 name = "anstyle-parse"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e765fd216e48e067936442276d1d57399e37bce53c264d6fefbe298080cb57ee"
+checksum = "938874ff5980b03a87c5524b3ae5b59cf99b1d6bc836848df7bc5ada9643c333"
 dependencies = [
  "utf8parse",
 ]
@@ -91,10 +99,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
-name = "base64"
+name = "backtrace"
-version = "0.21.0"
+version = "0.3.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4a4ddaa51a5bc52a6948f74c06d20aaaddb71924eab79b8c97a8c556e942d6a"
+checksum = "4319208da049c43661739c5fade2ba182f09d1dc2299b32298d3a31692b17e12"
+dependencies = [
+ "addr2line",
+ "cc",
+ "cfg-if",
+ "libc",
+ "miniz_oxide",
+ "object",
+ "rustc-demangle",
+]
+
+[[package]]
+name = "base64"
+version = "0.21.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "604178f6c5c21f02dc555784810edfb88d34ac2c73b2eae109655649ee73ce3d"
 
 [[package]]
 name = "base64ct"
@@ -108,7 +131,7 @@ version = "0.65.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cfdf7b466f9a4903edc73f95d6d2bcd5baf8ae620638762244d3f60143643cc5"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "cexpr",
  "clang-sys",
  "lazy_static",
@@ -121,7 +144,7 @@ dependencies = [
  "regex",
  "rustc-hash",
  "shlex",
- "syn 2.0.15",
+ "syn 2.0.22",
  "which",
 ]
 
@@ -131,6 +154,12 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "bitflags"
+version = "2.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "630be753d4e58660abd17930c71b647fe46c27ea6b63cc59e1e3851406972e42"
+
 [[package]]
 name = "block-buffer"
 version = "0.10.4"
@@ -142,9 +171,9 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.12.2"
+version = "3.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c6ed94e98ecff0c12dd1b04c15ec0d7d9458ca8fe806cea6f12954efe74c63b"
+checksum = "a3e2c3daef883ecc1b5d58c15adae93470a91d425f3532ba1695849656af3fc1"
 
 [[package]]
 name = "burrow"
@@ -153,8 +182,11 @@ dependencies = [
  "caps",
  "clap",
  "env_logger",
+ "libsystemd",
  "log",
  "nix",
+ "serde",
+ "serde_json",
  "tokio",
  "tun",
 ]
@@ -228,11 +260,12 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "cipher"
-version = "0.3.0"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ee52072ec15386f770805afd189a01c8841be8696bed250fa2f13c4c0d6dfb7"
+checksum = "773f3b9af64447d2ce9850330c473515014aa235e6a783b02db81ff39e4a3dad"
 dependencies = [
- "generic-array",
+ "crypto-common",
+ "inout",
 ]
 
 [[package]]
@@ -248,9 +281,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.3.2"
+version = "4.3.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "401a4694d2bf92537b6867d94de48c4842089645fdcdf6c71865b175d836e9c2"
+checksum = "384e169cc618c613d5e3ca6404dda77a8685a63e08660dcc64abaf7da7cb0c7a"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -259,13 +292,12 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.3.1"
+version = "4.3.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72394f3339a76daf211e57d4bcb374410f3965dcc606dd0e03738c7888766980"
+checksum = "ef137bbe35aab78bdb468ccfba75a5f4d8321ae011d34063770780545176af2d"
 dependencies = [
  "anstream",
  "anstyle",
- "bitflags",
  "clap_lex",
  "strsim",
 ]
@@ -279,7 +311,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.15",
+ "syn 2.0.22",
 ]
 
 [[package]]
@@ -318,9 +350,9 @@ checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa"
 
 [[package]]
 name = "cpufeatures"
-version = "0.2.7"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e4c1eaa2012c47becbbad2ab175484c2a84d1185b566fb2cc5b8707343dfe58"
+checksum = "03e69e28e9f7f77debdedbaafa2866e1de9ba56df55a8bd7cfc724c25a09987c"
 dependencies = [
  "libc",
 ]
@@ -336,9 +368,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.15"
+version = "0.8.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c063cd8cc95f5c377ed0d4b49a4b21f632396ff690e8470c29b3359b346984b"
+checksum = "5a22b2d63d4d1dc0b7f1b6b2747dd0088008a9be28b6ddf0b1e7d335e3037294"
 dependencies = [
  "cfg-if",
 ]
@@ -355,9 +387,9 @@ dependencies = [
 
 [[package]]
 name = "digest"
-version = "0.10.6"
+version = "0.10.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8168378f4e5023e7218c89c891c0fd8ecdb5e5e4f18cb78f38cf245dd021e76f"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
  "block-buffer",
  "crypto-common",
@@ -475,9 +507,9 @@ checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
 
 [[package]]
 name = "form_urlencoded"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9c384f161156f5260c24a097c56119f9be8c798586aecc13afbcbe7b7e26bf8"
+checksum = "a62bc1cf6f830c2ec14a513a9fb124d0a213a629668a4186f329db21fe045652"
 dependencies = [
  "percent-encoding",
 ]
@@ -538,7 +570,7 @@ checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.15",
+ "syn 2.0.22",
 ]
 
 [[package]]
@@ -581,6 +613,12 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "gimli"
+version = "0.27.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6c80984affa11d98d1b88b66ac8853f143217b399d3c74116778ff8fdb4ed2e"
+
 [[package]]
 name = "glob"
 version = "0.3.1"
@@ -589,9 +627,9 @@ checksum = "d2fabcfbdc87f4758337ca535fb41a6d701b65693ce38287d856d1674551ec9b"
 
 [[package]]
 name = "h2"
-version = "0.3.19"
+version = "0.3.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d357c7ae988e7d2182f7d7871d0b963962420b0678b0997ce7de72001aeab782"
+checksum = "97ec8491ebaf99c8eaa73058b045fe58073cd6be7f596ac993ced0b0a0c01049"
 dependencies = [
  "bytes",
  "fnv",
@@ -681,9 +719,9 @@ checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
 
 [[package]]
 name = "hyper"
-version = "0.14.26"
+version = "0.14.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab302d72a6f11a3b910431ff93aae7e773078c769f0a3ef15fb9ec692ed147d4"
+checksum = "ffb1cfd654a8219eaef89881fdb3bb3b1cdc5fa75ded05d6933b2b382e395468"
 dependencies = [
  "bytes",
  "futures-channel",
@@ -718,9 +756,9 @@ dependencies = [
 
 [[package]]
 name = "idna"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e14ddfc70884202db2244c223200c204c2bda1bc6e0998d11b5e024d657209e6"
+checksum = "7d20d6b07bfbc108882d88ed8e37d39636dcc260e15e30c45e6ba089610b917c"
 dependencies = [
  "unicode-bidi",
  "unicode-normalization",
@@ -736,6 +774,15 @@ dependencies = [
  "hashbrown",
 ]
 
+[[package]]
+name = "inout"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0c10553d664a4d0bcff9f4215d0aac67a639cc68ef660840afe309b807bc9f5"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "instant"
 version = "0.1.12"
@@ -747,9 +794,9 @@ dependencies = [
 
 [[package]]
 name = "io-lifetimes"
-version = "1.0.10"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c66c74d2ae7e79a5a8f7ac924adbe38ee42a859c6539ad869eb51f0b52dc220"
+checksum = "eae7b9aee968036d54dce06cebaefd919e4472e753296daccd6d344e3e2df0c2"
 dependencies = [
  "hermit-abi",
  "libc",
@@ -758,19 +805,18 @@ dependencies = [
 
 [[package]]
 name = "ipnet"
-version = "2.7.2"
+version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12b6ee2129af8d4fb011108c73d99a1b83a85977f23b82460c0ae2e25bb4b57f"
+checksum = "28b29a3cd74f0f4598934efe3aeba42bae0eb4680554128851ebbecb02af14e6"
 
 [[package]]
 name = "is-terminal"
-version = "0.4.7"
+version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "adcf93614601c8129ddf72e2d5633df827ba6551541c6d8c59520a371475be1f"
+checksum = "24fddda5af7e54bf7da53067d6e802dbcc381d0a8eef629df528e3ebf68755cb"
 dependencies = [
  "hermit-abi",
- "io-lifetimes",
+ "rustix 0.38.1",
- "rustix",
  "windows-sys 0.48.0",
 ]
 
@@ -791,9 +837,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.62"
+version = "0.3.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68c16e1bfd491478ab155fd8b4896b86f9ede344949b641e61501e07c2b8b4d5"
+checksum = "c5f195fe497f702db0f318b07fdd68edb16955aed830df8363d837542f8f935a"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -812,9 +858,9 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
 name = "libc"
-version = "0.2.144"
+version = "0.2.147"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b00cc1c228a6782d0f076e7b232802e0c5689d41bb5df366f2a6b6621cfdfe1"
+checksum = "b4668fb0ea861c1df094127ac5f1da3409a82116a4ba74fca2e58ef927159bb3"
 
 [[package]]
 name = "libloading"
@@ -827,10 +873,34 @@ dependencies = [
 ]
 
 [[package]]
-name = "linux-raw-sys"
+name = "libsystemd"
-version = "0.3.7"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ece97ea872ece730aed82664c424eb4c8291e1ff2480247ccf7409044bc6479f"
+checksum = "88b9597a67aa1c81a6624603e6bd0bcefb9e0f94c9c54970ec53771082104b4e"
+dependencies = [
+ "hmac",
+ "libc",
+ "log",
+ "nix",
+ "nom",
+ "once_cell",
+ "serde",
+ "sha2",
+ "thiserror",
+ "uuid",
+]
+
+[[package]]
+name = "linux-raw-sys"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef53942eb7bf7ff43a617b3e2c1c4a5ecf5944a7c1bc12d7ee39bbb15e5c1519"
+
+[[package]]
+name = "linux-raw-sys"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09fc20d2ca12cb9f044c93e3bd6d32d523e6e2ec3db4f7b2939cd99026ecd3f0"
 
 [[package]]
 name = "log"
@@ -873,7 +943,7 @@ checksum = "4901771e1d44ddb37964565c654a3223ba41a594d02b8da471cc4464912b5cfa"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.15",
+ "syn 2.0.22",
 ]
 
 [[package]]
@@ -899,14 +969,13 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.8.6"
+version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b9d9a46eff5b4ff64b45a9e316a6d1e0bc719ef429cbec4dc630684212bfdf9"
+checksum = "927a765cd3fc26206e66b296465fa9d3e5ab003e651c1b3c060e7956d96b19d2"
 dependencies = [
  "libc",
- "log",
  "wasi",
- "windows-sys 0.45.0",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -933,7 +1002,7 @@ version = "0.26.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bfdda3d196821d6af13126e40375cdf7da646a96114af134d5f417a9a1dc8e1a"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "cfg-if",
  "libc",
  "memoffset",
@@ -952,24 +1021,27 @@ dependencies = [
 ]
 
 [[package]]
-name = "once_cell"
+name = "object"
-version = "1.17.1"
+version = "0.31.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7e5500299e16ebb147ae15a00a942af264cf3688f47923b8fc2cd5858f23ad3"
+checksum = "8bda667d9f2b5051b8833f59f3bf748b28ef54f850f4fcb389a252aa383866d1"
+dependencies = [
+ "memchr",
+]
 
 [[package]]
-name = "opaque-debug"
+name = "once_cell"
-version = "0.3.0"
+version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
+checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
 [[package]]
 name = "openssl"
-version = "0.10.52"
+version = "0.10.55"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01b8574602df80f7b85fdfc5392fa884a4e3b3f4f35402c070ab34c3d3f78d56"
+checksum = "345df152bc43501c5eb9e4654ff05f794effb78d4efe3d53abc158baddc0703d"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "cfg-if",
  "foreign-types",
  "libc",
@@ -986,7 +1058,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.15",
+ "syn 2.0.22",
 ]
 
 [[package]]
@@ -997,9 +1069,9 @@ checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.87"
+version = "0.9.90"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e17f59264b2809d77ae94f0e1ebabc434773f370d6ca667bd223ea10e06cc7e"
+checksum = "374533b0e45f3a7ced10fcaeccca020e66656bc03dac384f852e4e5a7a8104a6"
 dependencies = [
  "cc",
  "libc",
@@ -1038,9 +1110,9 @@ checksum = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099"
 
 [[package]]
 name = "percent-encoding"
-version = "2.2.0"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "478c572c3d73181ff3c2539045f6eb99e5491218eae919370993b890cdbdd98e"
+checksum = "9b2a4787296e9989611394c33f193f676704af1686e70b8f8033ab5ba9a35a94"
 
 [[package]]
 name = "pin-project-lite"
@@ -1062,28 +1134,28 @@ checksum = "26072860ba924cbfa98ea39c8c19b4dd6a4a25423dbdf219c1eca91aa0cf6964"
 
 [[package]]
 name = "prettyplease"
-version = "0.2.4"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ceca8aaf45b5c46ec7ed39fff75f57290368c1846d33d24a122ca81416ab058"
+checksum = "9825a04601d60621feed79c4e6b56d65db77cdca55cef43b46b0de1096d1c282"
 dependencies = [
  "proc-macro2",
- "syn 2.0.15",
+ "syn 2.0.22",
 ]
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.56"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b63bdb0cd06f1f4dedf69b254734f9b45af66e4a031e42a7480257d9898b435"
+checksum = "7b368fba921b0dce7e60f5e04ec15e565b3303972b42bcfde1d0713b881959eb"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.27"
+version = "1.0.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f4f29d145265ec1c483c7c654450edde0bfe043d3938d6972630663356d9500"
+checksum = "573015e8ab27661678357f27dc26460738fd2b6c86e46f386fde94cb5d913105"
 dependencies = [
  "proc-macro2",
 ]
@@ -1100,14 +1172,14 @@ version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "567664f262709473930a4bf9e51bf2ebf3348f2e748ccc50dea20646858f8f29"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
 ]
 
 [[package]]
 name = "regex"
-version = "1.8.1"
+version = "1.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af83e617f331cc6ae2da5443c602dfa5af81e517212d9d611a5b3ba1777b5370"
+checksum = "d0ab3ca65655bb1e41f2a8c8cd662eb4fb035e67c3f78da1d61dffe89d07300f"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -1116,15 +1188,15 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.7.1"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5996294f19bd3aae0453a862ad728f60e6600695733dd5df01da90c54363a3c"
+checksum = "436b050e76ed2903236f032a59761c1eb99e1b0aead2c257922771dab1fc8c78"
 
 [[package]]
 name = "reqwest"
-version = "0.11.17"
+version = "0.11.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13293b639a097af28fc8a90f22add145a9c954e49d77da06263d58cf44d5fb91"
+checksum = "cde824a14b7c14f85caff81225f411faacc04a2013f41670f41443742b1c1c55"
 dependencies = [
  "base64",
  "bytes",
@@ -1157,6 +1229,12 @@ dependencies = [
  "winreg",
 ]
 
+[[package]]
+name = "rustc-demangle"
+version = "0.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
+
 [[package]]
 name = "rustc-hash"
 version = "1.1.0"
@@ -1165,15 +1243,28 @@ checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
 
 [[package]]
 name = "rustix"
-version = "0.37.19"
+version = "0.37.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acf8729d8542766f1b2cf77eb034d52f40d375bb8b615d0b147089946e16613d"
+checksum = "62f25693a73057a1b4cb56179dd3c7ea21a7c6c5ee7d85781f5749b46f34b79c"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "errno",
  "io-lifetimes",
  "libc",
- "linux-raw-sys",
+ "linux-raw-sys 0.3.8",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "rustix"
+version = "0.38.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fbc6396159432b5c8490d4e301d8c705f61860b8b6c863bf79942ce5401968f3"
+dependencies = [
+ "bitflags 2.3.3",
+ "errno",
+ "libc",
+ "linux-raw-sys 0.4.3",
  "windows-sys 0.48.0",
 ]
 
@@ -1194,11 +1285,11 @@ dependencies = [
 
 [[package]]
 name = "security-framework"
-version = "2.9.0"
+version = "2.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca2855b3715770894e67cbfa3df957790aa0c9edc3bf06efa1a84d77fa0839d1"
+checksum = "1fc758eb7bffce5b308734e9b0c1468893cae9ff70ebf13e7090be8dcbcc83a8"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "core-foundation",
  "core-foundation-sys",
  "libc",
@@ -1217,15 +1308,29 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.163"
+version = "1.0.164"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2113ab51b87a539ae008b5c6c02dc020ffa39afd2d83cffcb3f4eb2722cebec2"
+checksum = "9e8c8cf938e98f769bc164923b06dce91cea1751522f46f8466461af04c9027d"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.164"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9735b638ccc51c28bf6914d90a2e9725b377144fc612c49a611fddd1b631d68"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.22",
+]
 
 [[package]]
 name = "serde_json"
-version = "1.0.96"
+version = "1.0.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "057d394a50403bcac12672b2b18fb387ab6d289d957dab67dd201875391e52f1"
+checksum = "46266871c240a00b8f503b877622fe33430b3c7d963bdc0f2adc511e54a1eae3"
 dependencies = [
  "itoa",
  "ryu",
@@ -1268,9 +1373,9 @@ dependencies = [
 
 [[package]]
 name = "sha2"
-version = "0.10.6"
+version = "0.10.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82e6b795fe2e3b1e845bafcb27aa35405c4d47cdfc92af5fc8d3002f76cebdc0"
+checksum = "479fb9d862239e610720565ca91403019f2f00410f1864c5aa7479b950a76ed8"
 dependencies = [
  "cfg-if",
  "cpufeatures",
@@ -1332,9 +1437,9 @@ checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
 [[package]]
 name = "subtle"
-version = "2.4.1"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
+checksum = "81cdd64d312baedb58e21336b31bc043b77e01cc99033ce76ef539f78e965ebc"
 
 [[package]]
 name = "syn"
@@ -1349,9 +1454,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.15"
+version = "2.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a34fcf3e8b60f57e6a14301a2e916d323af98b0ea63c599441eec8558660c822"
+checksum = "2efbeae7acf4eabd6bcdcbd11c92f45231ddda7539edc7806bd1a04a03b24616"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1360,15 +1465,16 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.5.0"
+version = "3.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9fbec84f381d5795b08656e4912bec604d162bff9291d6189a78f4c8ab87998"
+checksum = "31c0432476357e58790aaa47a8efb0c5138f137343f3b5f23bd36a27e3b0a6d6"
 dependencies = [
+ "autocfg",
  "cfg-if",
  "fastrand",
  "redox_syscall",
- "rustix",
+ "rustix 0.37.21",
- "windows-sys 0.45.0",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -1397,14 +1503,14 @@ checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.15",
+ "syn 2.0.22",
 ]
 
 [[package]]
 name = "time"
-version = "0.3.21"
+version = "0.3.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f3403384eaacbca9923fa06940178ac13e4edb725486d70e8e15881d0c836cc"
+checksum = "ea9e1b3cf1243ae005d9e74085d4d542f3125458f3a81af210d901dcd7411efd"
 dependencies = [
  "serde",
  "time-core",
@@ -1433,11 +1539,12 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.28.2"
+version = "1.29.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94d7b1cfd2aa4011f2de74c2c4c63665e27a71006b0a192dcd2710272e73dfa2"
+checksum = "532826ff75199d5833b9d2c5fe410f29235e25704ee5f0ef599fb51c21f4a4da"
 dependencies = [
  "autocfg",
+ "backtrace",
  "bytes",
  "libc",
  "mio",
@@ -1455,7 +1562,7 @@ checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.15",
+ "syn 2.0.22",
 ]
 
 [[package]]
@@ -1529,6 +1636,7 @@ dependencies = [
  "log",
  "nix",
  "reqwest",
+ "serde",
  "socket2",
  "ssri",
  "tempfile",
@@ -1552,9 +1660,9 @@ checksum = "92888ba5573ff080736b3648696b70cafad7d250551175acbaa4e0385b3e1460"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.8"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
+checksum = "b15811caf2415fb889178633e7724bad2509101cde276048e013b9def5e51fa0"
 
 [[package]]
 name = "unicode-normalization"
@@ -1573,9 +1681,9 @@ checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
 
 [[package]]
 name = "url"
-version = "2.3.1"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d68c799ae75762b8c3fe375feb6600ef5602c883c5d21eb51c09f22b83c4643"
+checksum = "50bff7831e19200a85b17131d085c25d7811bc4e186efdaf54bbd132994a88cb"
 dependencies = [
  "form_urlencoded",
  "idna",
@@ -1588,6 +1696,15 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
 
+[[package]]
+name = "uuid"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d023da39d1fde5a8a3fe1f3e01ca9632ada0a63e9797de55a879d6e2236277be"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "vcpkg"
 version = "0.2.15"
@@ -1602,11 +1719,10 @@ checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "want"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
+checksum = "bfa7760aed19e106de2c7c0b581b509f2f25d3dacaf737cb82ac61bc6d760b0e"
 dependencies = [
- "log",
  "try-lock",
 ]
 
@@ -1618,9 +1734,9 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.85"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b6cb788c4e39112fbe1822277ef6fb3c55cd86b95cb3d3c4c1c9597e4ac74b4"
+checksum = "7706a72ab36d8cb1f80ffbf0e071533974a60d0a308d01a5d0375bf60499a342"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -1628,24 +1744,24 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.85"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "35e522ed4105a9d626d885b35d62501b30d9666283a5c8be12c14a8bdafe7822"
+checksum = "5ef2b6d3c510e9625e5fe6f509ab07d66a760f0885d858736483c32ed7809abd"
 dependencies = [
  "bumpalo",
  "log",
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.15",
+ "syn 2.0.22",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.35"
+version = "0.4.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "083abe15c5d88556b77bdf7aef403625be9e327ad37c62c4e4129af740168163"
+checksum = "c02dbc21516f9f1f04f187958890d7e6026df8d16540b7ad9492bc34a67cea03"
 dependencies = [
  "cfg-if",
  "js-sys",
@@ -1655,9 +1771,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.85"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "358a79a0cb89d21db8120cbfb91392335913e4890665b1a7981d9e956903b434"
+checksum = "dee495e55982a3bd48105a7b947fd2a9b4a8ae3010041b9e0faab3f9cd028f1d"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -1665,28 +1781,28 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.85"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4783ce29f09b9d93134d41297aded3a712b7b979e9c6f28c32cb88c973a94869"
+checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.15",
+ "syn 2.0.22",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.85"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a901d592cafaa4d711bc324edfaff879ac700b19c3dfd60058d2b445be2691eb"
+checksum = "ca6ad05a4870b2bf5fe995117d3728437bd27d7cd5f06f13c17443ef369775a1"
 
 [[package]]
 name = "web-sys"
-version = "0.3.62"
+version = "0.3.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16b5f940c7edfdc6d12126d98c9ef4d1b3d470011c47c76a6581df47ad9ba721"
+checksum = "9b85cbef8c220a6abc02aefd892dfc0fc23afb1c6a426316ec33253a3877249b"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -1746,7 +1862,7 @@ version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e686886bc078bc1b0b600cac0147aadb815089b6e4da64016cbd754b6342700f"
 dependencies = [
- "windows-targets 0.48.0",
+ "windows-targets",
 ]
 
 [[package]]
@@ -1764,44 +1880,20 @@ dependencies = [
  "windows_x86_64_msvc 0.42.2",
 ]
 
-[[package]]
-name = "windows-sys"
-version = "0.45.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
-dependencies = [
- "windows-targets 0.42.2",
-]
-
 [[package]]
 name = "windows-sys"
 version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
 dependencies = [
- "windows-targets 0.48.0",
+ "windows-targets",
 ]
 
 [[package]]
 name = "windows-targets"
-version = "0.42.2"
+version = "0.48.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
+checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
-dependencies = [
- "windows_aarch64_gnullvm 0.42.2",
- "windows_aarch64_msvc 0.42.2",
- "windows_i686_gnu 0.42.2",
- "windows_i686_msvc 0.42.2",
- "windows_x86_64_gnu 0.42.2",
- "windows_x86_64_gnullvm 0.42.2",
- "windows_x86_64_msvc 0.42.2",
-]
-
-[[package]]
-name = "windows-targets"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b1eb6f0cd7c80c79759c929114ef071b87354ce476d9d94271031c0497adfd5"
 dependencies = [
  "windows_aarch64_gnullvm 0.48.0",
  "windows_aarch64_msvc 0.48.0",
@@ -1913,9 +2005,9 @@ checksum = "735a71d46c4d68d71d4b24d03fdc2b98e38cea81730595801db779c04fe80d70"
 
 [[package]]
 name = "zip"
-version = "0.6.5"
+version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e92305c174683d78035cbf1b70e18db6329cc0f1b9cae0a52ca90bf5bfe7125"
+checksum = "760394e246e4c28189f19d488c058bf16f564016aefac5d32bb1f3b51d5e9261"
 dependencies = [
  "aes",
  "byteorder",

burrow/Cargo.toml

@@ -7,14 +7,17 @@ edition = "2021"
 crate-type = ["lib", "staticlib"]
 
 [dependencies]
-tokio = { version = "1.21", features = ["rt", "macros"] }
+tokio = { version = "1.21", features = ["rt", "sync", "io-util", "macros"] }
-tun = { version = "0.1", path = "../tun" }
+tun = { version = "0.1", path = "../tun", features = ["serde"] }
 clap = { version = "4.3.2", features = ["derive"] }
 env_logger = "0.10"
 log = "0.4"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
 
 [target.'cfg(target_os = "linux")'.dependencies]
 caps = "0.5.5"
+libsystemd = "0.6"
 
 [target.'cfg(target_vendor = "apple")'.dependencies]
 nix = { version = "0.26.2" }

burrow/src/daemon/command.rs

@@ -0,0 +1,13 @@
+use serde::{Deserialize, Serialize};
+use tun::TunOptions;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub enum DaemonCommand {
+    Start(DaemonStartOptions),
+    Stop,
+}
+
+#[derive(Debug, Clone, Default, Serialize, Deserialize)]
+pub struct DaemonStartOptions {
+    pub(super) tun: TunOptions,
+}

burrow/src/daemon/instance.rs

@@ -0,0 +1,40 @@
+use super::*;
+
+pub struct DaemonInstance {
+    rx: mpsc::Receiver<DaemonCommand>,
+    tun_interface: Option<TunInterface>,
+}
+
+impl DaemonInstance {
+    pub fn new(rx: mpsc::Receiver<DaemonCommand>) -> Self {
+        Self {
+            rx,
+            tun_interface: None,
+        }
+    }
+
+    pub async fn run(&mut self) -> Result<()> {
+        while let Some(command) = self.rx.recv().await {
+            match command {
+                DaemonCommand::Start(options) => {
+                    if self.tun_interface.is_none() {
+                        self.tun_interface = Some(options.tun.open()?);
+                        eprintln!("Daemon starting tun interface.");
+                    } else {
+                        eprintln!("Got start, but tun interface already up.");
+                    }
+                }
+                DaemonCommand::Stop => {
+                    if self.tun_interface.is_some() {
+                        self.tun_interface = None;
+                        eprintln!("Daemon stopping tun interface.");
+                    } else {
+                        eprintln!("Got stop, but tun interface is not up.")
+                    }
+                }
+            }
+        }
+
+        Ok(())
+    }
+}

burrow/src/daemon/mod.rs

@@ -0,0 +1,19 @@
+use super::*;
+use tokio::sync::mpsc;
+
+mod command;
+mod instance;
+mod net;
+
+use instance::DaemonInstance;
+use net::listen;
+
+pub use command::{DaemonCommand, DaemonStartOptions};
+pub use net::DaemonClient;
+
+pub async fn daemon_main() -> Result<()> {
+    let (tx, rx) = mpsc::channel(2);
+    let mut inst = DaemonInstance::new(rx);
+
+    tokio::try_join!(inst.run(), listen(tx)).map(|_| ())
+}

burrow/src/daemon/net/mod.rs

@@ -0,0 +1,29 @@
+use super::*;
+use serde::{Deserialize, Serialize};
+
+#[cfg(target_family = "unix")]
+mod unix;
+#[cfg(all(target_family = "unix", not(target_os = "linux")))]
+pub use unix::{listen, DaemonClient};
+
+#[cfg(target_os = "linux")]
+mod systemd;
+#[cfg(target_os = "linux")]
+pub use systemd::{listen, DaemonClient};
+
+#[cfg(target_os = "windows")]
+mod windows;
+#[cfg(target_os = "windows")]
+pub use windows::{listen, DaemonClient};
+
+#[derive(Clone, Serialize, Deserialize)]
+pub struct DaemonRequest {
+    pub id: u32,
+    pub command: DaemonCommand,
+}
+
+#[derive(Clone, Serialize, Deserialize)]
+pub struct DaemonResponse {
+    //  Error types can't be serialized, so this is the second best option.
+    result: std::result::Result<(), String>,
+}

burrow/src/daemon/net/systemd.rs

@@ -0,0 +1,16 @@
+use super::*;
+use std::os::fd::IntoRawFd;
+
+pub async fn listen(cmd_tx: mpsc::Sender<DaemonCommand>) -> Result<()> {
+    if !libsystemd::daemon::booted() || listen_with_systemd(cmd_tx.clone()).await.is_err() {
+        unix::listen(cmd_tx).await?;
+    }
+    Ok(())
+}
+
+async fn listen_with_systemd(cmd_tx: mpsc::Sender<DaemonCommand>) -> Result<()> {
+    let fds = libsystemd::activation::receive_descriptors(false).unwrap();
+    super::unix::listen_with_optional_fd(cmd_tx, Some(fds[0].clone().into_raw_fd())).await
+}
+
+pub type DaemonClient = unix::DaemonClient;

burrow/src/daemon/net/unix.rs

@@ -0,0 +1,102 @@
+use super::*;
+use std::{
+    os::fd::{FromRawFd, RawFd},
+    os::unix::net::UnixListener as StdUnixListener,
+    path::Path,
+};
+use tokio::{
+    io::{AsyncBufReadExt, AsyncWriteExt, BufReader},
+    net::{UnixListener, UnixStream},
+};
+
+const UNIX_SOCKET_PATH: &str = "/run/burrow.sock";
+
+pub async fn listen(cmd_tx: mpsc::Sender<DaemonCommand>) -> Result<()> {
+    listen_with_optional_fd(cmd_tx, None).await
+}
+
+pub(crate) async fn listen_with_optional_fd(
+    cmd_tx: mpsc::Sender<DaemonCommand>,
+    raw_fd: Option<RawFd>,
+) -> Result<()> {
+    let path = Path::new(UNIX_SOCKET_PATH);
+
+    let listener = if let Some(raw_fd) = raw_fd {
+        let listener = unsafe { StdUnixListener::from_raw_fd(raw_fd) };
+        listener.set_nonblocking(true)?;
+        UnixListener::from_std(listener)
+    } else {
+        UnixListener::bind(path)
+    };
+    let listener = if let Ok(listener) = listener {
+        listener
+    } else {
+        //  Won't help all that much, if we use the async version of fs.
+        std::fs::remove_file(path)?;
+        UnixListener::bind(path)?
+    };
+    loop {
+        let (stream, _) = listener.accept().await?;
+        let cmd_tx = cmd_tx.clone();
+
+        //  I'm pretty sure we won't need to manually join / shut this down,
+        //  `lines` will return Err during dropping, and this task should exit gracefully.
+        tokio::task::spawn(async {
+            let cmd_tx = cmd_tx;
+            let mut stream = stream;
+            let (mut read_stream, mut write_stream) = stream.split();
+            let buf_reader = BufReader::new(&mut read_stream);
+            let mut lines = buf_reader.lines();
+            while let Ok(Some(line)) = lines.next_line().await {
+                let mut res = DaemonResponse { result: Ok(()) };
+                let command = match serde_json::from_str::<DaemonRequest>(&line) {
+                    Ok(req) => Some(req.command),
+                    Err(e) => {
+                        res.result = Err(format!("{}", e));
+                        None
+                    }
+                };
+                let mut res = serde_json::to_string(&res).unwrap();
+                res.push('\n');
+
+                write_stream.write_all(res.as_bytes()).await.unwrap();
+
+                //  I want this to come at the very end so that we always send a reponse back.
+                if let Some(command) = command {
+                    cmd_tx.send(command).await.unwrap();
+                }
+            }
+        });
+    }
+}
+
+pub struct DaemonClient {
+    connection: UnixStream,
+}
+
+impl DaemonClient {
+    pub async fn new() -> Result<Self> {
+        Self::new_with_path(UNIX_SOCKET_PATH).await
+    }
+
+    pub async fn new_with_path(path: &str) -> Result<Self> {
+        let path = Path::new(path);
+        let connection = UnixStream::connect(path).await?;
+
+        Ok(Self { connection })
+    }
+
+    pub async fn send_command(&mut self, command: DaemonCommand) -> Result<()> {
+        let mut command = serde_json::to_string(&DaemonRequest { id: 0, command })?;
+        command.push('\n');
+
+        self.connection.write_all(command.as_bytes()).await?;
+        let buf_reader = BufReader::new(&mut self.connection);
+        let mut lines = buf_reader.lines();
+        //  This unwrap *should* never cause issues.
+        let response = lines.next_line().await?.unwrap();
+        let res: DaemonResponse = serde_json::from_str(&response)?;
+        res.result.unwrap();
+        Ok(())
+    }
+}

burrow/src/daemon/net/windows.rs

@@ -0,0 +1,17 @@
+use super::*;
+
+pub async fn listen(_: mpsc::Sender<DaemonCommand>) -> Result<()> {
+    unimplemented!("This platform does not currently support daemon mode.")
+}
+
+pub struct DaemonClient;
+
+impl DaemonClient {
+    pub async fn new() -> Result<Self> {
+        unimplemented!("This platform does not currently support daemon mode.")
+    }
+
+    pub async fn send_command(&mut self, _: DaemonCommand) -> Result<()> {
+        unimplemented!("This platform does not currently support daemon mode.")
+    }
+}

burrow/src/main.rs

@@ -8,6 +8,10 @@ use tokio::io::Result;
 use burrow::retrieve;
 use tun::TunInterface;
 
+mod daemon;
+
+use daemon::{DaemonClient, DaemonCommand, DaemonStartOptions};
+
 #[derive(Parser)]
 #[command(name = "Burrow")]
 #[command(author = "Hack Club <team@hackclub.com>")]
@@ -30,6 +34,10 @@ enum Commands {
     Start(StartArgs),
     /// Retrieve the file descriptor of the tun interface
     Retrieve(RetrieveArgs),
+    /// Stop Burrow daemon
+    Stop,
+    /// Start Burrow daemon
+    Daemon(DaemonArgs),
 }
 
 #[derive(Args)]
@@ -38,14 +46,15 @@ struct StartArgs {}
 #[derive(Args)]
 struct RetrieveArgs {}
 
+#[derive(Args)]
+struct DaemonArgs {}
+
 #[cfg(any(target_os = "linux", target_vendor = "apple"))]
 async fn try_start() -> Result<()> {
-    burrow::ensureroot::ensure_root();
+    let mut client = DaemonClient::new().await?;
-    let iface = TunInterface::new()?;
+    client
-    println!("{:?}", iface.name());
+        .send_command(DaemonCommand::Start(DaemonStartOptions::default()))
-    let iface2 = retrieve();
+        .await
-    println!("{}", iface2);
-    Ok(())
 }
 
 #[cfg(any(target_os = "linux", target_vendor = "apple"))]
@@ -56,6 +65,13 @@ async fn try_retrieve() -> Result<()> {
     Ok(())
 }
 
+#[cfg(any(target_os = "linux", target_vendor = "apple"))]
+async fn try_stop() -> Result<()> {
+    let mut client = DaemonClient::new().await?;
+    client.send_command(DaemonCommand::Stop).await?;
+    Ok(())
+}
+
 #[cfg(not(any(target_os = "linux", target_vendor = "apple")))]
 async fn try_start() -> Result<()> {
     Ok(())
@@ -66,8 +82,13 @@ async fn try_retrieve() -> Result<()> {
     Ok(())
 }
 
+#[cfg(not(any(target_os = "linux", target_vendor = "apple")))]
+async fn try_stop() -> Result<()> {
+    Ok(())
+}
+
 #[tokio::main(flavor = "current_thread")]
-async fn main() {
+async fn main() -> Result<()> {
     println!("Platform: {}", std::env::consts::OS);
 
     let cli = Cli::parse();
@@ -80,5 +101,11 @@ async fn main() {
             try_retrieve().await.unwrap();
             println!("FINISHED");
         }
+        Commands::Stop => {
+            try_stop().await.unwrap();
         }
+        Commands::Daemon(_) => daemon::daemon_main().await?,
+    }
+
+    Ok(())
 }

systemd/burrow.service

@@ -0,0 +1,9 @@
+[Unit]
+Description=Burrow
+After=burrow.socket
+
+[Service]
+ExecStart=/usr/local/bin/burrow daemon
+
+[Install]
+WantedBy=multi-user.target

systemd/burrow.socket

@@ -0,0 +1,8 @@
+[Unit]
+Description=Burrow Socket
+
+[Socket]
+ListenStream=/run/burrow.sock
+
+[Install]
+WantedBy=sockets.target

tun/Cargo.toml

@@ -11,10 +11,12 @@ socket2 = "0.4"
 tokio = { version = "1.28", features = [] }
 byteorder = "1.4"
 log = "0.4"
+serde = { version = "1", features = ["derive"], optional = true }
 
 futures = { version = "0.3.28", optional = true }
 
 [features]
+serde = ["dep:serde"]
 tokio = ["tokio/net", "dep:futures"]
 
 [target.'cfg(feature = "tokio")'.dev-dependencies]

tun/src/options.rs

@@ -3,7 +3,8 @@ use std::io::Error;
 
 use super::TunInterface;
 
-#[derive(Default)]
+#[derive(Debug, Clone, Default)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub struct TunOptions {
     /// (Windows + Linux) Name the tun interface.
     pub(crate) name: Option<String>,