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log remote certificate fingerprint on handshakes (#262)

This commit is contained in:
Alan Lam 2020-07-31 15:54:51 -07:00 committed by GitHub
parent f3a6d8d990
commit 5545cff6ef
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 0 deletions
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15
handshake_ix.go
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@ -126,11 +126,13 @@ func ixHandshakeStage1(f *Interface, addr *udpAddr, hostinfo *HostInfo, packet [
}
vpnIP := ip2int(remoteCert.Details.Ips[0].IP)
certName := remoteCert.Details.Name
fingerprint, _ := remoteCert.Sha256Sum()
myIndex, err := generateIndex()
if err != nil {
l.WithError(err).WithField("vpnIp", IntIp(vpnIP)).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).Error("Failed to generate index")
return true
}
@ -139,12 +141,14 @@ func ixHandshakeStage1(f *Interface, addr *udpAddr, hostinfo *HostInfo, packet [
if err != nil {
l.WithError(err).WithField("vpnIp", IntIp(vpnIP)).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).Error("Error adding index to connection manager")
return true
}
l.WithField("vpnIp", IntIp(vpnIP)).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("initiatorIndex", hs.Details.InitiatorIndex).WithField("responderIndex", hs.Details.ResponderIndex).
WithField("remoteIndex", h.RemoteIndex).WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).
Info("Handshake message received")
@ -157,6 +161,7 @@ func ixHandshakeStage1(f *Interface, addr *udpAddr, hostinfo *HostInfo, packet [
if err != nil {
l.WithError(err).WithField("vpnIp", IntIp(hostinfo.hostId)).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).Error("Failed to marshal handshake message")
return true
}
@ -166,6 +171,7 @@ func ixHandshakeStage1(f *Interface, addr *udpAddr, hostinfo *HostInfo, packet [
if err != nil {
l.WithError(err).WithField("vpnIp", IntIp(hostinfo.hostId)).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).Error("Failed to call noise.WriteMessage")
return true
}
@ -173,6 +179,7 @@ func ixHandshakeStage1(f *Interface, addr *udpAddr, hostinfo *HostInfo, packet [
if f.hostMap.CheckHandshakeCompleteIP(vpnIP) && vpnIP < ip2int(f.certState.certificate.Details.Ips[0].IP) {
l.WithField("vpnIp", IntIp(vpnIP)).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("initiatorIndex", hs.Details.InitiatorIndex).WithField("responderIndex", hs.Details.ResponderIndex).
WithField("remoteIndex", h.RemoteIndex).WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).
Info("Prevented a handshake race")
@ -196,12 +203,14 @@ func ixHandshakeStage1(f *Interface, addr *udpAddr, hostinfo *HostInfo, packet [
if err != nil {
l.WithField("vpnIp", IntIp(vpnIP)).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("initiatorIndex", hs.Details.InitiatorIndex).WithField("responderIndex", hs.Details.ResponderIndex).
WithField("remoteIndex", h.RemoteIndex).WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).
WithError(err).Error("Failed to send handshake")
} else {
l.WithField("vpnIp", IntIp(vpnIP)).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("initiatorIndex", hs.Details.InitiatorIndex).WithField("responderIndex", hs.Details.ResponderIndex).
WithField("remoteIndex", h.RemoteIndex).WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).
Info("Handshake message sent")
@ -225,6 +234,7 @@ func ixHandshakeStage1(f *Interface, addr *udpAddr, hostinfo *HostInfo, packet [
if err == nil && ho.localIndexId != 0 {
l.WithField("vpnIp", vpnIP).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("action", "removing stale index").
WithField("index", ho.localIndexId).
Debug("Handshake processing")
@ -238,6 +248,7 @@ func ixHandshakeStage1(f *Interface, addr *udpAddr, hostinfo *HostInfo, packet [
} else {
l.WithField("vpnIp", IntIp(hostinfo.hostId)).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).
Error("Noise did not arrive at a key")
return true
@ -297,10 +308,12 @@ func ixHandshakeStage2(f *Interface, addr *udpAddr, hostinfo *HostInfo, packet [
}
vpnIP := ip2int(remoteCert.Details.Ips[0].IP)
certName := remoteCert.Details.Name
fingerprint, _ := remoteCert.Sha256Sum()
duration := time.Since(hostinfo.handshakeStart).Nanoseconds()
l.WithField("vpnIp", IntIp(vpnIP)).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("initiatorIndex", hs.Details.InitiatorIndex).WithField("responderIndex", hs.Details.ResponderIndex).
WithField("remoteIndex", h.RemoteIndex).WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).
WithField("durationNs", duration).
@ -339,6 +352,7 @@ func ixHandshakeStage2(f *Interface, addr *udpAddr, hostinfo *HostInfo, packet [
if err == nil && ho.localIndexId != 0 {
l.WithField("vpnIp", vpnIP).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("action", "removing stale index").
WithField("index", ho.localIndexId).
Debug("Handshake processing")
@ -353,6 +367,7 @@ func ixHandshakeStage2(f *Interface, addr *udpAddr, hostinfo *HostInfo, packet [
} else {
l.WithField("vpnIp", IntIp(hostinfo.hostId)).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("fingerprint", fingerprint).
WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).
Error("Noise did not arrive at a key")
return true