From 7605b2ab5ea2cdd619fafbe5eea981f689865676 Mon Sep 17 00:00:00 2001 From: flu0r1ne Date: Sun, 27 Aug 2023 04:17:54 -0500 Subject: Encode key in base32 to exclude the Unix path sep --- src/wg2nd.cpp | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) (limited to 'src/wg2nd.cpp') diff --git a/src/wg2nd.cpp b/src/wg2nd.cpp index cbe3c29..9397a0b 100644 --- a/src/wg2nd.cpp +++ b/src/wg2nd.cpp @@ -25,11 +25,11 @@ constexpr char const * SYMMETRIC_KEY_SUFFIX = ".symkey"; namespace wg2nd { std::string private_keyfile_name(std::string const & priv_key) { - char pub_key[WG_KEY_LEN_BASE64]; + char pub_key[WG_KEY_LEN_BASE32]; // Derive public key - if(wg_pubkey_base64(priv_key.c_str(), pub_key)) { - throw ParsingException("Private key is formatted improperly"); + if(wg_pubkey_base32(priv_key.c_str(), pub_key)) { + throw ParsingException("Private key is formatted improperly"); } std::string keyfile_name { pub_key }; @@ -38,6 +38,19 @@ namespace wg2nd { return keyfile_name; } + std::string public_keyfile_name(std::string const & pub_key) { + char pub_key32[WG_KEY_LEN_BASE32]; + + if(wg_key_convert_base32(pub_key.c_str(), pub_key32)) { + throw ParsingException("Public key for [Peer] " + pub_key + " is formatted improperly"); + } + + std::string keyfile_name { pub_key32 }; + keyfile_name.append(SYMMETRIC_KEY_SUFFIX); + + return keyfile_name; + } + uint32_t deterministic_fwmark(std::string const & interface_name) { constexpr uint8_t const SIP_KEY[8] = { 0x90, 0x08, 0x82, 0xd7, @@ -409,7 +422,7 @@ namespace wg2nd { } if(!peer.preshared_key.empty()) { - std::string filename = peer.public_key + SYMMETRIC_KEY_SUFFIX; + std::string filename = public_keyfile_name(peer.public_key); symmetric_keyfiles.push_back(SystemdFilespec { .name = filename, -- cgit v1.2.3