return flag;
}
+static struct eap_peer_config *
+peerGetConfig(void *ctx)
+{
+ gss_ctx_id_t gssCtx = (gss_ctx_id_t)ctx;
+
+ return &gssCtx->initiatorCtx.eapPeerConfig;
+}
+
static Boolean
peerGetBool(void *data, enum eapol_bool_var variable)
{
ctx->flags &= ~(flag);
}
-static int
+static unsigned int
peerGetInt(void *data, enum eapol_int_var variable)
{
gss_ctx_id_t ctx = data;
}
}
+static struct wpabuf *
+peerGetEapReqData(void *ctx)
+{
+ return NULL;
+}
+
+static void
+peerSetConfigBlob(void *ctx, struct wpa_config_blob *blob)
+{
+}
+
+static const struct wpa_config_blob *
+peerGetConfigBlob(void *ctx, const char *name)
+{
+ return NULL;
+}
+
+static void
+peerNotifyPending(void *ctx)
+{
+}
+
+static struct eapol_callbacks gssEapPolicyCallbacks = {
+ peerGetConfig,
+ peerGetBool,
+ peerSetBool,
+ peerGetInt,
+ peerSetInt,
+ peerGetEapReqData,
+ peerSetConfigBlob,
+ peerGetConfigBlob,
+ peerNotifyPending,
+};
+
+static OM_uint32
+peerConfigInit(OM_uint32 *minor,
+ gss_cred_id_t cred,
+ gss_ctx_id_t ctx,
+ int loadConfig)
+{
+ krb5_context krbContext;
+ struct eap_peer_config *eapPeerConfig = &ctx->initiatorCtx.eapPeerConfig;
+ krb5_error_code code;
+ char *identity;
+
+ GSSEAP_KRB_INIT(&krbContext);
+
+ if (loadConfig) {
+ }
+
+ code = krb5_unparse_name(krbContext, cred->name->krbPrincipal, &identity);
+ if (code != 0) {
+ *minor = code;
+ return GSS_S_FAILURE;
+ }
+
+ eapPeerConfig->identity = (unsigned char *)identity;
+ eapPeerConfig->identity_len = strlen(identity);
+ eapPeerConfig->password = (unsigned char *)cred->password.value;
+ eapPeerConfig->password_len = cred->password.length;
+
+ return GSS_S_COMPLETE;
+}
+
+static OM_uint32
+peerConfigFree(OM_uint32 *minor,
+ gss_ctx_id_t ctx)
+{
+ krb5_context krbContext;
+ struct eap_peer_config *eapPeerConfig = &ctx->initiatorCtx.eapPeerConfig;
+
+ GSSEAP_KRB_INIT(&krbContext);
+
+ krb5_free_unparsed_name(krbContext, (char *)eapPeerConfig->identity);
+
+ return GSS_S_COMPLETE;
+}
+
+static OM_uint32
+peerDeriveKey(OM_uint32 *minor,
+ gss_ctx_id_t ctx)
+{
+ OM_uint32 major;
+ const unsigned char *key;
+ size_t keyLength;
+ krb5_context krbContext;
+
+ GSSEAP_KRB_INIT(&krbContext);
+
+ /* Cache encryption type derived from selected mechanism OID */
+ major = gssEapOidToEnctype(minor, ctx->mechanismUsed, &ctx->encryptionType);
+ if (GSS_ERROR(major))
+ return major;
+
+ if (ctx->encryptionType != ENCTYPE_NULL &&
+ eap_key_available(ctx->initiatorCtx.eap)) {
+ key = eap_get_eapKeyData(ctx->initiatorCtx.eap, &keyLength);
+
+ major = gssEapDeriveRFC3961Key(minor, key, keyLength,
+ ctx->encryptionType, &ctx->rfc3961Key);
+ if (GSS_ERROR(major))
+ return major;
+ } else {
+ /*
+ * draft-howlett-eap-gss says that integrity/confidentialty should
+ * always be advertised as available, but if we have no keying
+ * material it seems confusing to the caller to advertise this.
+ */
+ ctx->gssFlags &= ~(GSS_C_INTEG_FLAG | GSS_C_CONF_FLAG);
+ }
+
+ return GSS_S_COMPLETE;
+}
+
static OM_uint32
eapGssSmInitAuthenticate(OM_uint32 *minor,
gss_cred_id_t cred,
{
OM_uint32 major, tmpMinor;
time_t now;
+ int initialContextToken = 0, code;
- if (inputToken == GSS_C_NO_BUFFER || inputToken->length == 0) {
- /* first time */
- reqFlags &= GSS_C_TRANS_FLAG | GSS_C_REPLAY_FLAG | GSS_C_DCE_STYLE;
- ctx->gssFlags |= reqFlags;
+ initialContextToken = (inputToken == GSS_C_NO_BUFFER ||
+ inputToken->length == 0);
- time(&now);
+ major = peerConfigInit(minor, cred, ctx, initialContextToken);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+ if (initialContextToken) {
+ ctx->flags |= CTX_FLAG_EAP_PORT_ENABLED;
+ ctx->initiatorCtx.eap = eap_peer_sm_init(ctx,
+ &gssEapPolicyCallbacks,
+ ctx,
+ &ctx->initiatorCtx.eapConfig);
+
+ time(&now);
if (timeReq == 0 || timeReq == GSS_C_INDEFINITE)
ctx->expiryTime = 0;
else
goto cleanup;
}
+ code = eap_peer_sm_step(ctx->initiatorCtx.eap);
+
+ if (ctx->flags & CTX_FLAG_EAP_RESP) {
+ struct wpabuf *resp;
+ gss_buffer_desc buf;
+
+ ctx->flags &= ~(CTX_FLAG_EAP_RESP);
+
+ resp = eap_get_eapRespData(ctx->initiatorCtx.eap);
+
+ if (resp != NULL) {
+ buf.length = wpabuf_len(resp);
+ buf.value = (void *)wpabuf_head(resp);
+
+ major = duplicateBuffer(minor, &buf, outputToken);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+ major = GSS_S_CONTINUE_NEEDED;
+ }
+ }
+
+ if (ctx->flags & CTX_FLAG_EAP_SUCCESS) {
+ major = peerDeriveKey(minor, ctx);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+ ctx->state = EAP_STATE_ESTABLISHED;
+ } else if (code == 0) {
+ major = GSS_S_FAILURE;
+ }
+
cleanup:
+ peerConfigFree(&tmpMinor, ctx);
+
return major;
}
+static OM_uint32
+eapGssSmInitKeyTransport(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)
+{
+ GSSEAP_NOT_IMPLEMENTED;
+}
+
+static OM_uint32
+eapGssSmInitSecureAssoc(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)
+{
+ GSSEAP_NOT_IMPLEMENTED;
+}
+
+static OM_uint32
+eapGssSmInitGssChannelBindings(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)
+{
+ GSSEAP_NOT_IMPLEMENTED;
+}
+
+static OM_uint32
+eapGssSmInitEstablished(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)
+{
+ /* Called with already established context */
+ *minor = EINVAL;
+ return GSS_S_BAD_STATUS;
+}
+
static struct eap_gss_initiator_sm {
enum gss_eap_token_type inputTokenType;
enum gss_eap_token_type outputTokenType;
gss_buffer_t,
gss_buffer_t);
} eapGssInitiatorSm[] = {
- { TOK_TYPE_EAP_REQ, TOK_TYPE_EAP_RESP, eapGssSmInitAuthenticate },
+ { TOK_TYPE_EAP_REQ, TOK_TYPE_EAP_RESP, eapGssSmInitAuthenticate },
+ { TOK_TYPE_EAP_REQ, TOK_TYPE_EAP_RESP, eapGssSmInitKeyTransport },
+ { TOK_TYPE_EAP_REQ, TOK_TYPE_EAP_RESP, eapGssSmInitSecureAssoc },
+ { TOK_TYPE_GSS_CB, TOK_TYPE_NONE, eapGssSmInitGssChannelBindings },
+ { TOK_TYPE_NONE, TOK_TYPE_NONE, eapGssSmInitEstablished },
};
OM_uint32
projects / cyrus-sasl.git / commitdiff