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-rw-r--r--modules/caddyhttp/reverseproxy/caddyfile.go14
-rw-r--r--modules/caddyhttp/reverseproxy/httptransport.go20
2 files changed, 34 insertions, 0 deletions
diff --git a/modules/caddyhttp/reverseproxy/caddyfile.go b/modules/caddyhttp/reverseproxy/caddyfile.go
index ebea49e..dfb30d8 100644
--- a/modules/caddyhttp/reverseproxy/caddyfile.go
+++ b/modules/caddyhttp/reverseproxy/caddyfile.go
@@ -922,6 +922,20 @@ func (h *HTTPTransport) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
return d.ArgErr()
}
+ case "renegotiation":
+ if h.TLS == nil {
+ h.TLS = new(TLSConfig)
+ }
+ if !d.NextArg() {
+ return d.ArgErr()
+ }
+ switch renegotiation := d.Val(); renegotiation {
+ case "never", "once", "freely":
+ h.TLS.Renegotiation = renegotiation
+ default:
+ return d.ArgErr()
+ }
+
case "tls":
if h.TLS == nil {
h.TLS = new(TLSConfig)
diff --git a/modules/caddyhttp/reverseproxy/httptransport.go b/modules/caddyhttp/reverseproxy/httptransport.go
index 54cdb70..e6ff188 100644
--- a/modules/caddyhttp/reverseproxy/httptransport.go
+++ b/modules/caddyhttp/reverseproxy/httptransport.go
@@ -324,6 +324,14 @@ type TLSConfig struct {
// support placeholders because the TLS config is not provisioned on each
// connection, so a static value must be used.
ServerName string `json:"server_name,omitempty"`
+
+ // TLS renegotiation level. TLS renegotiation is the act of performing
+ // subsequent handshakes on a connection after the first.
+ // The level can be:
+ // - "never": (the default) disables renegotiation.
+ // - "once": allows a remote server to request renegotiation once per connection.
+ // - "freely": allows a remote server to repeatedly request renegotiation.
+ Renegotiation string `json:"renegotiation,omitempty"`
}
// MakeTLSClientConfig returns a tls.Config usable by a client to a backend.
@@ -393,6 +401,18 @@ func (t TLSConfig) MakeTLSClientConfig(ctx caddy.Context) (*tls.Config, error) {
cfg.RootCAs = rootPool
}
+ // Renegotiation
+ switch t.Renegotiation {
+ case "never":
+ cfg.Renegotiation = tls.RenegotiateNever
+ case "once":
+ cfg.Renegotiation = tls.RenegotiateOnceAsClient
+ case "freely":
+ cfg.Renegotiation = tls.RenegotiateFreelyAsClient
+ default:
+ return nil, fmt.Errorf("invalid TLS renegotiation level: %v", t.Renegotiation)
+ }
+
// override for the server name used verify the TLS handshake
cfg.ServerName = t.ServerName