+initBegin(OM_uint32 *minor,
+ gss_cred_id_t cred,
+ gss_ctx_id_t ctx,
+ gss_name_t target,
+ gss_OID mech,
+ OM_uint32 reqFlags,
+ OM_uint32 timeReq,
+ gss_channel_bindings_t chanBindings,
+ gss_buffer_t inputToken,
+ gss_buffer_t outputToken)
+{
+ OM_uint32 major;
+
+ if (cred != GSS_C_NO_CREDENTIAL && cred->expiryTime)
+ ctx->expiryTime = cred->expiryTime;
+ else if (timeReq == 0 || timeReq == GSS_C_INDEFINITE)
+ ctx->expiryTime = 0;
+ else
+ ctx->expiryTime = time(NULL) + timeReq;
+
+ if (cred != GSS_C_NO_CREDENTIAL) {
+ major = gssEapDuplicateName(minor, cred->name, &ctx->initiatorName);
+ if (GSS_ERROR(major))
+ return major;
+ }
+
+ major = gssEapDuplicateName(minor, target, &ctx->acceptorName);
+ if (GSS_ERROR(major))
+ return major;
+
+ if (mech == GSS_C_NULL_OID || oidEqual(mech, GSS_EAP_MECHANISM)) {
+ major = gssEapDefaultMech(minor, &ctx->mechanismUsed);
+ } else if (gssEapIsConcreteMechanismOid(mech)) {
+ if (!gssEapInternalizeOid(mech, &ctx->mechanismUsed))
+ major = duplicateOid(minor, mech, &ctx->mechanismUsed);
+ } else {
+ major = GSS_S_BAD_MECH;
+ }
+ if (GSS_ERROR(major))
+ return major;
+
+ /* If credentials were provided, check they're usable with this mech */
+ if (!gssEapCredAvailable(cred, ctx->mechanismUsed))
+ return GSS_S_BAD_MECH;
+
+ return GSS_S_COMPLETE;
+}
+
+static OM_uint32
+eapGssSmInitIdentity(OM_uint32 *minor,
+ gss_cred_id_t cred,
+ gss_ctx_id_t ctx,
+ gss_name_t target,
+ gss_OID mech,
+ OM_uint32 reqFlags,
+ OM_uint32 timeReq,
+ gss_channel_bindings_t chanBindings,
+ gss_buffer_t inputToken,
+ gss_buffer_t outputToken)
+{
+ OM_uint32 major;
+ int initialContextToken;
+
+ initialContextToken = (inputToken->length == 0);
+ if (!initialContextToken)
+ return GSS_S_DEFECTIVE_TOKEN;
+
+ major = initBegin(minor, cred, ctx, target, mech,
+ reqFlags, timeReq, chanBindings,
+ inputToken, outputToken);
+ if (GSS_ERROR(major))
+ return major;
+
+ ctx->state = EAP_STATE_AUTHENTICATE;
+
+ return GSS_S_CONTINUE_NEEDED;
+}
+
+static struct wpabuf emptyWpaBuffer;
+
+static OM_uint32