remove @EAP_LDFLAGS@, no longer exists

[mech_eap.git] / libeap / src / eap_server / eap_server_identity.c

diff --git a/libeap/src/eap_server/eap_server_identity.c b/libeap/src/eap_server/eap_server_identity.c
new file mode 100644 (file)
index 0000000..cd8da2a
--- /dev/null
+++ b/libeap/src/eap_server/eap_server_identity.c
@@ -0,0 +1,180 @@
+/*
+ * hostapd / EAP-Identity
+ * Copyright (c) 2004-2006, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "eap_i.h"
+
+
+struct eap_identity_data {
+       enum { CONTINUE, SUCCESS, FAILURE } state;
+       int pick_up;
+};
+
+
+static void * eap_identity_init(struct eap_sm *sm)
+{
+       struct eap_identity_data *data;
+
+       data = os_zalloc(sizeof(*data));
+       if (data == NULL)
+               return NULL;
+       data->state = CONTINUE;
+
+       return data;
+}
+
+
+static void * eap_identity_initPickUp(struct eap_sm *sm)
+{
+       struct eap_identity_data *data;
+       data = eap_identity_init(sm);
+       if (data) {
+               data->pick_up = 1;
+       }
+       return data;
+}
+
+
+static void eap_identity_reset(struct eap_sm *sm, void *priv)
+{
+       struct eap_identity_data *data = priv;
+       os_free(data);
+}
+
+
+static struct wpabuf * eap_identity_buildReq(struct eap_sm *sm, void *priv,
+                                            u8 id)
+{
+       struct eap_identity_data *data = priv;
+       struct wpabuf *req;
+       const char *req_data;
+       size_t req_data_len;
+
+       if (sm->eapol_cb->get_eap_req_id_text) {
+               req_data = sm->eapol_cb->get_eap_req_id_text(sm->eapol_ctx,
+                                                            &req_data_len);
+       } else {
+               req_data = NULL;
+               req_data_len = 0;
+       }
+       req = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_IDENTITY, req_data_len,
+                           EAP_CODE_REQUEST, id);
+       if (req == NULL) {
+               wpa_printf(MSG_ERROR, "EAP-Identity: Failed to allocate "
+                          "memory for request");
+               data->state = FAILURE;
+               return NULL;
+       }
+
+       wpabuf_put_data(req, req_data, req_data_len);
+
+       return req;
+}
+
+
+static Boolean eap_identity_check(struct eap_sm *sm, void *priv,
+                                 struct wpabuf *respData)
+{
+       const u8 *pos;
+       size_t len;
+
+       pos = eap_hdr_validate(EAP_VENDOR_IETF, EAP_TYPE_IDENTITY,
+                              respData, &len);
+       if (pos == NULL) {
+               wpa_printf(MSG_INFO, "EAP-Identity: Invalid frame");
+               return TRUE;
+       }
+
+       return FALSE;
+}
+
+
+static void eap_identity_process(struct eap_sm *sm, void *priv,
+                                struct wpabuf *respData)
+{
+       struct eap_identity_data *data = priv;
+       const u8 *pos;
+       size_t len;
+
+       if (data->pick_up) {
+               if (eap_identity_check(sm, data, respData)) {
+                       wpa_printf(MSG_DEBUG, "EAP-Identity: failed to pick "
+                                  "up already started negotiation");
+                       data->state = FAILURE;
+                       return;
+               }
+               data->pick_up = 0;
+       }
+
+       pos = eap_hdr_validate(EAP_VENDOR_IETF, EAP_TYPE_IDENTITY,
+                              respData, &len);
+       if (pos == NULL)
+               return; /* Should not happen - frame already validated */
+
+       wpa_hexdump_ascii(MSG_DEBUG, "EAP-Identity: Peer identity", pos, len);
+       if (sm->identity)
+               sm->update_user = TRUE;
+       os_free(sm->identity);
+       sm->identity = os_malloc(len ? len : 1);
+       if (sm->identity == NULL) {
+               data->state = FAILURE;
+       } else {
+               os_memcpy(sm->identity, pos, len);
+               sm->identity_len = len;
+               data->state = SUCCESS;
+       }
+}
+
+
+static Boolean eap_identity_isDone(struct eap_sm *sm, void *priv)
+{
+       struct eap_identity_data *data = priv;
+       return data->state != CONTINUE;
+}
+
+
+static Boolean eap_identity_isSuccess(struct eap_sm *sm, void *priv)
+{
+       struct eap_identity_data *data = priv;
+       return data->state == SUCCESS;
+}
+
+
+int eap_server_identity_register(void)
+{
+       struct eap_method *eap;
+       int ret;
+
+       eap = eap_server_method_alloc(EAP_SERVER_METHOD_INTERFACE_VERSION,
+                                     EAP_VENDOR_IETF, EAP_TYPE_IDENTITY,
+                                     "Identity");
+       if (eap == NULL)
+               return -1;
+
+       eap->init = eap_identity_init;
+       eap->initPickUp = eap_identity_initPickUp;
+       eap->reset = eap_identity_reset;
+       eap->buildReq = eap_identity_buildReq;
+       eap->check = eap_identity_check;
+       eap->process = eap_identity_process;
+       eap->isDone = eap_identity_isDone;
+       eap->isSuccess = eap_identity_isSuccess;
+
+       ret = eap_server_method_register(eap);
+       if (ret)
+               eap_server_method_free(eap);
+       return ret;
+}