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author | Sichen Zhao <1473996754@qq.com> | 2017-08-01 20:43:41 +0800 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-11-10 13:33:02 +0100 |
commit | 9c9d11b481ce0dcdfa9c69e6781cc15435cfb043 (patch) | |
tree | 3d0e6678afcdbb17d35606398f220fba66dcfa7b /freebsd/contrib/wpa/src/eap_peer/eap_md5.c | |
parent | Fix build for non-FDT platforms (diff) | |
download | rtems-libbsd-9c9d11b481ce0dcdfa9c69e6781cc15435cfb043.tar.bz2 |
Import wpa from FreeBSD
Diffstat (limited to 'freebsd/contrib/wpa/src/eap_peer/eap_md5.c')
-rw-r--r-- | freebsd/contrib/wpa/src/eap_peer/eap_md5.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/freebsd/contrib/wpa/src/eap_peer/eap_md5.c b/freebsd/contrib/wpa/src/eap_peer/eap_md5.c new file mode 100644 index 00000000..145bfa8f --- /dev/null +++ b/freebsd/contrib/wpa/src/eap_peer/eap_md5.c @@ -0,0 +1,122 @@ +#include <machine/rtems-bsd-user-space.h> + +/* + * EAP peer method: EAP-MD5 (RFC 3748 and RFC 1994) + * Copyright (c) 2004-2012, Jouni Malinen <j@w1.fi> + * + * This software may be distributed under the terms of the BSD license. + * See README for more details. + */ + +#include "includes.h" + +#include "common.h" +#include "eap_i.h" +#include "eap_common/chap.h" + + +static void * eap_md5_init(struct eap_sm *sm) +{ + /* No need for private data. However, must return non-NULL to indicate + * success. */ + return (void *) 1; +} + + +static void eap_md5_deinit(struct eap_sm *sm, void *priv) +{ +} + + +static struct wpabuf * eap_md5_process(struct eap_sm *sm, void *priv, + struct eap_method_ret *ret, + const struct wpabuf *reqData) +{ + struct wpabuf *resp; + const u8 *pos, *challenge, *password; + u8 *rpos, id; + size_t len, challenge_len, password_len; + + password = eap_get_config_password(sm, &password_len); + if (password == NULL) { + wpa_printf(MSG_INFO, "EAP-MD5: Password not configured"); + eap_sm_request_password(sm); + ret->ignore = TRUE; + return NULL; + } + + pos = eap_hdr_validate(EAP_VENDOR_IETF, EAP_TYPE_MD5, reqData, &len); + if (pos == NULL || len == 0) { + wpa_printf(MSG_INFO, "EAP-MD5: Invalid frame (pos=%p len=%lu)", + pos, (unsigned long) len); + ret->ignore = TRUE; + return NULL; + } + + /* + * CHAP Challenge: + * Value-Size (1 octet) | Value(Challenge) | Name(optional) + */ + challenge_len = *pos++; + if (challenge_len == 0 || challenge_len > len - 1) { + wpa_printf(MSG_INFO, "EAP-MD5: Invalid challenge " + "(challenge_len=%lu len=%lu)", + (unsigned long) challenge_len, (unsigned long) len); + ret->ignore = TRUE; + return NULL; + } + ret->ignore = FALSE; + challenge = pos; + wpa_hexdump(MSG_MSGDUMP, "EAP-MD5: Challenge", + challenge, challenge_len); + + wpa_printf(MSG_DEBUG, "EAP-MD5: Generating Challenge Response"); + ret->methodState = METHOD_DONE; + ret->decision = DECISION_COND_SUCC; + ret->allowNotifications = TRUE; + + resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_MD5, 1 + CHAP_MD5_LEN, + EAP_CODE_RESPONSE, eap_get_id(reqData)); + if (resp == NULL) + return NULL; + + /* + * CHAP Response: + * Value-Size (1 octet) | Value(Response) | Name(optional) + */ + wpabuf_put_u8(resp, CHAP_MD5_LEN); + + id = eap_get_id(resp); + rpos = wpabuf_put(resp, CHAP_MD5_LEN); + if (chap_md5(id, password, password_len, challenge, challenge_len, + rpos)) { + wpa_printf(MSG_INFO, "EAP-MD5: CHAP MD5 operation failed"); + ret->ignore = TRUE; + wpabuf_free(resp); + return NULL; + } + wpa_hexdump(MSG_MSGDUMP, "EAP-MD5: Response", rpos, CHAP_MD5_LEN); + + return resp; +} + + +int eap_peer_md5_register(void) +{ + struct eap_method *eap; + int ret; + + eap = eap_peer_method_alloc(EAP_PEER_METHOD_INTERFACE_VERSION, + EAP_VENDOR_IETF, EAP_TYPE_MD5, "MD5"); + if (eap == NULL) + return -1; + + eap->init = eap_md5_init; + eap->deinit = eap_md5_deinit; + eap->process = eap_md5_process; + + ret = eap_peer_method_register(eap); + if (ret) + eap_peer_method_free(eap); + return ret; +} |