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author | sam <sam@FreeBSD.org> | 2005-06-05 22:35:03 +0000 |
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committer | sam <sam@FreeBSD.org> | 2005-06-05 22:35:03 +0000 |
commit | 21e78f430e299464b3c902bec78f8daa1f0e2e71 (patch) | |
tree | a7d225a062cd128980707f3fa918dec2d015c46b /contrib/hostapd/eap_gtc.c | |
download | FreeBSD-src-21e78f430e299464b3c902bec78f8daa1f0e2e71.zip FreeBSD-src-21e78f430e299464b3c902bec78f8daa1f0e2e71.tar.gz |
Stripped down import of hostapd v0.3.7
Diffstat (limited to 'contrib/hostapd/eap_gtc.c')
-rw-r--r-- | contrib/hostapd/eap_gtc.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/contrib/hostapd/eap_gtc.c b/contrib/hostapd/eap_gtc.c new file mode 100644 index 0000000..674f837 --- /dev/null +++ b/contrib/hostapd/eap_gtc.c @@ -0,0 +1,158 @@ +/* + * hostapd / EAP-GTC (RFC 3748) + * Copyright (c) 2004, Jouni Malinen <jkmaline@cc.hut.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 <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <netinet/in.h> + +#include "hostapd.h" +#include "common.h" +#include "eap_i.h" + + +struct eap_gtc_data { + enum { CONTINUE, SUCCESS, FAILURE } state; +}; + + +static void * eap_gtc_init(struct eap_sm *sm) +{ + struct eap_gtc_data *data; + + data = malloc(sizeof(*data)); + if (data == NULL) + return data; + memset(data, 0, sizeof(*data)); + data->state = CONTINUE; + + return data; +} + + +static void eap_gtc_reset(struct eap_sm *sm, void *priv) +{ + struct eap_gtc_data *data = priv; + free(data); +} + + +static u8 * eap_gtc_buildReq(struct eap_sm *sm, void *priv, int id, + size_t *reqDataLen) +{ + struct eap_gtc_data *data = priv; + struct eap_hdr *req; + u8 *pos; + char *msg = "Password"; + size_t msg_len; + + msg_len = strlen(msg); + *reqDataLen = sizeof(*req) + 1 + msg_len; + req = malloc(*reqDataLen); + if (req == NULL) { + wpa_printf(MSG_ERROR, "EAP-GTC: Failed to allocate memory for " + "request"); + data->state = FAILURE; + return NULL; + } + + req->code = EAP_CODE_REQUEST; + req->identifier = id; + req->length = htons(*reqDataLen); + pos = (u8 *) (req + 1); + *pos++ = EAP_TYPE_GTC; + memcpy(pos, msg, msg_len); + + data->state = CONTINUE; + + return (u8 *) req; +} + + +static Boolean eap_gtc_check(struct eap_sm *sm, void *priv, + u8 *respData, size_t respDataLen) +{ + struct eap_hdr *resp; + u8 *pos; + size_t len; + + resp = (struct eap_hdr *) respData; + pos = (u8 *) (resp + 1); + if (respDataLen < sizeof(*resp) + 2 || *pos != EAP_TYPE_GTC || + (len = ntohs(resp->length)) > respDataLen) { + wpa_printf(MSG_INFO, "EAP-GTC: Invalid frame"); + return TRUE; + } + + return FALSE; +} + + +static void eap_gtc_process(struct eap_sm *sm, void *priv, + u8 *respData, size_t respDataLen) +{ + struct eap_gtc_data *data = priv; + struct eap_hdr *resp; + u8 *pos; + size_t rlen; + + if (sm->user == NULL || sm->user->password == NULL) { + wpa_printf(MSG_INFO, "EAP-GTC: Password not configured"); + data->state = FAILURE; + return; + } + + resp = (struct eap_hdr *) respData; + pos = (u8 *) (resp + 1); + pos++; + rlen = ntohs(resp->length) - sizeof(*resp) - 1; + wpa_hexdump_key(MSG_MSGDUMP, "EAP-GTC: Response", pos, rlen); + + if (rlen != sm->user->password_len || + memcmp(pos, sm->user->password, rlen) != 0) { + wpa_printf(MSG_DEBUG, "EAP-GTC: Done - Failure"); + data->state = FAILURE; + } else { + wpa_printf(MSG_DEBUG, "EAP-GTC: Done - Success"); + data->state = SUCCESS; + } +} + + +static Boolean eap_gtc_isDone(struct eap_sm *sm, void *priv) +{ + struct eap_gtc_data *data = priv; + return data->state != CONTINUE; +} + + +static Boolean eap_gtc_isSuccess(struct eap_sm *sm, void *priv) +{ + struct eap_gtc_data *data = priv; + return data->state == SUCCESS; +} + + +const struct eap_method eap_method_gtc = +{ + .method = EAP_TYPE_GTC, + .name = "GTC", + .init = eap_gtc_init, + .reset = eap_gtc_reset, + .buildReq = eap_gtc_buildReq, + .check = eap_gtc_check, + .process = eap_gtc_process, + .isDone = eap_gtc_isDone, + .isSuccess = eap_gtc_isSuccess, +}; |