Add support for EAP-TLS (including experimental TLS v1.3 support).

[ppp.git] / pppd / ccp.c

diff --git a/pppd/ccp.c b/pppd/ccp.c
index 61947d96992c55872874253a5a8219372b66c59b..dbc567e3c037b608b62a44039f1a66b547dd0dd5 100644 (file)
--- a/pppd/ccp.c
+++ b/pppd/ccp.c
@@ -539,6 +539,9 @@ ccp_resetci(f)
     if (go->mppe) {
        ccp_options *ao = &ccp_allowoptions[f->unit];
        int auth_mschap_bits = auth_done[f->unit];
+#ifdef USE_EAPTLS
+       int auth_eap_bits = auth_done[f->unit];
+#endif
        int numbits;
 
        /*
@@ -566,8 +569,23 @@ ccp_resetci(f)
            lcp_close(f->unit, "MPPE required but not available");
            return;
        }
+
+#ifdef USE_EAPTLS
+    /*
+     * MPPE is also possible in combination with EAP-TLS.
+     * It is not possible to detect if we're doing EAP or EAP-TLS
+     * at this stage, hence we accept all forms of EAP. If TLS is
+     * not used then the MPPE keys will not be derived anyway.
+     */
+       /* Leave only the eap auth bits set */
+       auth_eap_bits &= (EAP_WITHPEER | EAP_PEER );
+
+       if ((numbits == 0) && (auth_eap_bits == 0)) {
+           error("MPPE required, but MS-CHAP[v2] nor EAP-TLS auth are performed.");
+#else
        if (!numbits) {
            error("MPPE required, but MS-CHAP[v2] auth not performed.");
+#endif
            lcp_close(f->unit, "MPPE required but not available");
            return;
        }