eap_server_methods.c
Go to the documentation of this file.00001 /* 00002 * EAP server method registration 00003 * Copyright (c) 2004-2009, Jouni Malinen <j@w1.fi> 00004 * 00005 * This program is free software; you can redistribute it and/or modify 00006 * it under the terms of the GNU General Public License version 2 as 00007 * published by the Free Software Foundation. 00008 * 00009 * Alternatively, this software may be distributed under the terms of BSD 00010 * license. 00011 * 00012 * See README and COPYING for more details. 00013 */ 00014 00015 #include "includes.h" 00016 00017 #include "common.h" 00018 #include "eap_i.h" 00019 #include "eap_methods.h" 00020 00021 00022 static struct eap_method *eap_methods; 00023 00024 00031 const struct eap_method * eap_server_get_eap_method(int vendor, EapType method) 00032 { 00033 struct eap_method *m; 00034 for (m = eap_methods; m; m = m->next) { 00035 if (m->vendor == vendor && m->method == method) 00036 return m; 00037 } 00038 return NULL; 00039 } 00040 00041 00051 EapType eap_server_get_type(const char *name, int *vendor) 00052 { 00053 struct eap_method *m; 00054 for (m = eap_methods; m; m = m->next) { 00055 if (os_strcmp(m->name, name) == 0) { 00056 *vendor = m->vendor; 00057 return m->method; 00058 } 00059 } 00060 *vendor = EAP_VENDOR_IETF; 00061 return EAP_TYPE_NONE; 00062 } 00063 00064 00077 struct eap_method * eap_server_method_alloc(int version, int vendor, 00078 EapType method, const char *name) 00079 { 00080 struct eap_method *eap; 00081 eap = os_zalloc(sizeof(*eap)); 00082 if (eap == NULL) 00083 return NULL; 00084 eap->version = version; 00085 eap->vendor = vendor; 00086 eap->method = method; 00087 eap->name = name; 00088 return eap; 00089 } 00090 00091 00096 void eap_server_method_free(struct eap_method *method) 00097 { 00098 os_free(method); 00099 } 00100 00101 00111 int eap_server_method_register(struct eap_method *method) 00112 { 00113 struct eap_method *m, *last = NULL; 00114 00115 if (method == NULL || method->name == NULL || 00116 method->version != EAP_SERVER_METHOD_INTERFACE_VERSION) 00117 return -1; 00118 00119 for (m = eap_methods; m; m = m->next) { 00120 if ((m->vendor == method->vendor && 00121 m->method == method->method) || 00122 os_strcmp(m->name, method->name) == 0) 00123 return -2; 00124 last = m; 00125 } 00126 00127 if (last) 00128 last->next = method; 00129 else 00130 eap_methods = method; 00131 00132 return 0; 00133 } 00134 00135 00142 void eap_server_unregister_methods(void) 00143 { 00144 struct eap_method *m; 00145 00146 while (eap_methods) { 00147 m = eap_methods; 00148 eap_methods = eap_methods->next; 00149 00150 if (m->free) 00151 m->free(m); 00152 else 00153 eap_server_method_free(m); 00154 } 00155 } 00156 00157 00167 const char * eap_server_get_name(int vendor, EapType type) 00168 { 00169 struct eap_method *m; 00170 for (m = eap_methods; m; m = m->next) { 00171 if (m->vendor == vendor && m->method == type) 00172 return m->name; 00173 } 00174 return NULL; 00175 }