From: Guus Sliepen <guus@tinc-vpn.org>
Date: Sun, 7 Dec 2014 16:20:18 +0000 (+0100)
Subject: Check validity of Ed25519 key during an upgrade.
X-Git-Tag: release-1.1pre11~29
X-Git-Url: https://git.tinc-vpn.org/git/browse?a=commitdiff_plain;h=660a2c7d1bf7f5fba905b525bc7c3b9a5ac2ec99;p=tinc

Check validity of Ed25519 key during an upgrade.
---

diff --git a/src/protocol_auth.c b/src/protocol_auth.c
index 73a591ed..be90d92b 100644
--- a/src/protocol_auth.c
+++ b/src/protocol_auth.c
@@ -730,6 +730,12 @@ static bool upgrade_h(connection_t *c, const char *request) {
 		return false;
 	}
 
+	c->ecdsa = ecdsa_set_base64_public_key(pubkey);
+	if(!c->ecdsa) {
+		logger(DEBUG_ALWAYS, LOG_INFO, "Got bad Ed25519 public key from %s (%s), not upgrading.", c->name, c->hostname);
+		return false;
+	}
+
 	logger(DEBUG_ALWAYS, LOG_INFO, "Got Ed25519 public key from %s (%s), upgrading!", c->name, c->hostname);
 	append_config_file(c->name, "Ed25519PublicKey", pubkey);
 	c->allow_request = TERMREQ;