X-Git-Url: http://www.project-moonshot.org/gitweb/?a=blobdiff_plain;f=init_sec_context.c;h=f1f260a18213cdee7a3961ff82ad6ebbb8983857;hb=31355119edb3a282ab302c05e33e23430af67603;hp=119eb4f30b6a261a9be770d4335637d39ed5b747;hpb=d4fe7ce93304facaf069792c347b01b25ab765ae;p=mech_eap.orig

diff --git a/init_sec_context.c b/init_sec_context.c
index 119eb4f..f1f260a 100644
--- a/init_sec_context.c
+++ b/init_sec_context.c
@@ -183,11 +183,12 @@ static struct eapol_callbacks gssEapPolicyCallbacks = {
     peerNotifyPending,
 };
 
+extern int wpa_debug_level;
+
 static OM_uint32
 peerConfigInit(OM_uint32 *minor,
                gss_cred_id_t cred,
-               gss_ctx_id_t ctx,
-               int loadConfig)
+               gss_ctx_id_t ctx)
 {
     krb5_context krbContext;
     struct eap_peer_config *eapPeerConfig = &ctx->initiatorCtx.eapPeerConfig;
@@ -196,8 +197,8 @@ peerConfigInit(OM_uint32 *minor,
 
     GSSEAP_KRB_INIT(&krbContext);
 
-    if (loadConfig) {
-    }
+    eapPeerConfig->fragment_size = 1024;
+    wpa_debug_level = 0;
 
     code = krb5_unparse_name(krbContext, cred->name->krbPrincipal, &identity);
     if (code != 0) {
@@ -228,29 +229,42 @@ peerConfigFree(OM_uint32 *minor,
 }
 
 static OM_uint32
-peerDeriveKey(OM_uint32 *minor,
-              gss_ctx_id_t ctx)
+initReady(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);
+    krb5_enctype encryptionType;
+    int gotKey = 0;
 
     /* Cache encryption type derived from selected mechanism OID */
-    major = gssEapOidToEnctype(minor, ctx->mechanismUsed, &ctx->encryptionType);
+    major = gssEapOidToEnctype(minor, ctx->mechanismUsed, &encryptionType);
     if (GSS_ERROR(major))
         return major;
 
-    if (ctx->encryptionType != ENCTYPE_NULL &&
+    if (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;
+        if (keyLength >= EAP_EMSK_LEN) {
+            major = gssEapDeriveRfc3961Key(minor,
+                                           &key[EAP_EMSK_LEN / 2],
+                                           EAP_EMSK_LEN / 2,
+                                           encryptionType,
+                                           &ctx->rfc3961Key);
+               if (GSS_ERROR(major))
+                   return major;
+
+            major = rfc3961ChecksumTypeForKey(minor, &ctx->rfc3961Key,
+                                              &ctx->checksumType);
+            if (GSS_ERROR(major))
+                return major;
+            gotKey++;
+        }
+    }
+
+    if (gotKey) {
+        ctx->encryptionType = encryptionType;
     } else {
         /*
          * draft-howlett-eap-gss says that integrity/confidentialty should
@@ -260,10 +274,100 @@ peerDeriveKey(OM_uint32 *minor,
         ctx->gssFlags &= ~(GSS_C_INTEG_FLAG | GSS_C_CONF_FLAG);
     }
 
+    major = sequenceInit(minor,
+                         &ctx->seqState,
+                         ctx->recvSeq,
+                         ((ctx->gssFlags & GSS_C_REPLAY_FLAG) != 0),
+                         ((ctx->gssFlags & GSS_C_SEQUENCE_FLAG) != 0),
+                         TRUE);
+    if (GSS_ERROR(major))
+        return major;
+
     return GSS_S_COMPLETE;
 }
 
 static OM_uint32
+initBegin(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)
+{
+    OM_uint32 major;
+
+    if (cred != GSS_C_NO_CREDENTIAL && cred->expiryTime)
+        ctx->expiryTime = cred->expiryTime;
+    else if (timeReq == 0 || timeReq == GSS_C_INDEFINITE)
+        ctx->expiryTime = 0;
+    else
+        ctx->expiryTime = time(NULL) + timeReq;
+
+    if (cred != GSS_C_NO_CREDENTIAL) {
+        major = gssEapDuplicateName(minor, cred->name, &ctx->initiatorName);
+        if (GSS_ERROR(major))
+            return major;
+    }
+
+    major = gssEapDuplicateName(minor, target, &ctx->acceptorName);
+    if (GSS_ERROR(major))
+        return major;
+
+    if (mech == GSS_C_NULL_OID || oidEqual(mech, GSS_EAP_MECHANISM)) {
+        major = gssEapDefaultMech(minor, &ctx->mechanismUsed);
+    } else if (gssEapIsConcreteMechanismOid(mech)) {
+        if (!gssEapInternalizeOid(mech, &ctx->mechanismUsed))
+            major = duplicateOid(minor, mech, &ctx->mechanismUsed);
+    } else {
+        major = GSS_S_BAD_MECH;
+    }
+    if (GSS_ERROR(major))
+        return major;
+
+    /* If credentials were provided, check they're usable with this mech */
+    if (!gssEapCredAvailable(cred, ctx->mechanismUsed))
+        return GSS_S_BAD_MECH;
+
+    return GSS_S_COMPLETE;
+}
+
+static OM_uint32
+eapGssSmInitIdentity(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)
+{
+    OM_uint32 major;
+    int initialContextToken;
+
+    initialContextToken = (inputToken->length == 0);
+    if (!initialContextToken)
+        return GSS_S_DEFECTIVE_TOKEN;
+
+    major = initBegin(minor, cred, ctx, target, mech,
+                      reqFlags, timeReq, chanBindings,
+                      inputToken, outputToken);
+    if (GSS_ERROR(major))
+        return major;
+
+    ctx->state = EAP_STATE_AUTHENTICATE;
+
+    return GSS_S_CONTINUE_NEEDED;
+}
+
+static struct wpabuf emptyWpaBuffer;
+
+static OM_uint32
 eapGssSmInitAuthenticate(OM_uint32 *minor,
                          gss_cred_id_t cred,
                          gss_ctx_id_t ctx,
@@ -275,89 +379,82 @@ eapGssSmInitAuthenticate(OM_uint32 *minor,
                          gss_buffer_t inputToken,
                          gss_buffer_t outputToken)
 {
-    OM_uint32 major, tmpMinor;
-    time_t now;
-    int initialContextToken = 0, code;
+    OM_uint32 major;
+    OM_uint32 tmpMinor;
+    int code;
+    struct wpabuf *resp = NULL;
+    int initialContextToken;
 
     initialContextToken = (inputToken == GSS_C_NO_BUFFER ||
                            inputToken->length == 0);
 
-    major = peerConfigInit(minor, cred, ctx, initialContextToken);
+    major = peerConfigInit(minor, cred, ctx);
     if (GSS_ERROR(major))
         goto cleanup;
 
-    if (initialContextToken) {
-        ctx->flags |= CTX_FLAG_EAP_PORT_ENABLED;
+    if (ctx->initiatorCtx.eap == NULL) {
+        struct eap_config eapConfig;
+
+        memset(&eapConfig, 0, sizeof(eapConfig));
 
         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
-            ctx->expiryTime = now + timeReq;
-
-        major = gss_duplicate_name(minor, cred->name, &ctx->initiatorName);
-        if (GSS_ERROR(major))
-            goto cleanup;
-
-        major = gss_duplicate_name(minor, target, &ctx->acceptorName);
-        if (GSS_ERROR(major))
+                                                 &eapConfig);
+        if (ctx->initiatorCtx.eap == NULL) {
+            major = GSS_S_FAILURE;
             goto cleanup;
-
-        if (mech == GSS_C_NULL_OID || oidEqual(mech, GSS_EAP_MECHANISM)) {
-            major = gssEapDefaultMech(minor, &ctx->mechanismUsed);
-        } else if (gssEapIsConcreteMechanismOid(mech)) {
-            if (!gssEapInternalizeOid(mech, &ctx->mechanismUsed))
-                major = duplicateOid(minor, mech, &ctx->mechanismUsed);
-        } else {
-            major = GSS_S_BAD_MECH;
         }
-        if (GSS_ERROR(major))
-            goto cleanup;
+
+        ctx->flags |= CTX_FLAG_EAP_RESTART | CTX_FLAG_EAP_PORT_ENABLED;
     }
 
+    ctx->flags |= CTX_FLAG_EAP_REQ; /* we have a Request from the acceptor */
+
     wpabuf_set(&ctx->initiatorCtx.reqData,
                inputToken->value, inputToken->length);
 
-    code = eap_peer_sm_step(ctx->initiatorCtx.eap);
+    major = GSS_S_CONTINUE_NEEDED;
 
+    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);
+    } else if (ctx->flags & CTX_FLAG_EAP_SUCCESS) {
+        major = initReady(minor, ctx);
         if (GSS_ERROR(major))
             goto cleanup;
 
         ctx->flags &= ~(CTX_FLAG_EAP_SUCCESS);
-        ctx->state = EAP_STATE_ESTABLISHED;
-        major = GSS_S_COMPLETE;
-    } else if ((ctx->flags & CTX_FLAG_EAP_FAIL) || code == 0) {
-        major = GSS_S_FAILURE;
+        major = GSS_S_CONTINUE_NEEDED;
+        ctx->state = EAP_STATE_EXTENSIONS_REQ;
+    } else if (ctx->flags & CTX_FLAG_EAP_FAIL) {
+        major = GSS_S_DEFECTIVE_CREDENTIAL;
+    } else if (code == 0 && initialContextToken) {
+        resp = &emptyWpaBuffer;
+        major = GSS_S_CONTINUE_NEEDED;
+    } else {
+        major = GSS_S_DEFECTIVE_TOKEN;
     }
 
 cleanup:
+    if (resp != NULL) {
+        OM_uint32 tmpMajor;
+        gss_buffer_desc respBuf;
+
+        assert(major == GSS_S_CONTINUE_NEEDED);
+
+        respBuf.length = wpabuf_len(resp);
+        respBuf.value = (void *)wpabuf_head(resp);
+
+        tmpMajor = duplicateBuffer(&tmpMinor, &respBuf, outputToken);
+        if (GSS_ERROR(tmpMajor)) {
+            major = tmpMajor;
+            *minor = tmpMinor;
+        }
+    }
+
     wpabuf_set(&ctx->initiatorCtx.reqData, NULL, 0);
     peerConfigFree(&tmpMinor, ctx);
 
@@ -365,48 +462,79 @@ cleanup:
 }
 
 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)
+initGssChannelBindings(OM_uint32 *minor,
+                       gss_ctx_id_t ctx,
+                       gss_channel_bindings_t chanBindings,
+                       gss_buffer_t outputToken)
 {
-    GSSEAP_NOT_IMPLEMENTED;
+    OM_uint32 major;
+    gss_buffer_desc buffer = GSS_C_EMPTY_BUFFER;
+
+
+    if (chanBindings != GSS_C_NO_CHANNEL_BINDINGS)
+        buffer = chanBindings->application_data;
+
+    major = gssEapWrap(minor, ctx, TRUE, GSS_C_QOP_DEFAULT,
+                       &buffer, NULL, outputToken);
+    if (GSS_ERROR(major))
+        return major;                       
+
+    return GSS_S_CONTINUE_NEEDED;
 }
 
 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)
+eapGssSmInitExtensionsReq(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;
+    OM_uint32 major, tmpMinor;
+    gss_buffer_desc cbToken = GSS_C_EMPTY_BUFFER;
+
+    major = initGssChannelBindings(minor, ctx, chanBindings, &cbToken);
+    if (GSS_ERROR(major))
+        return major;
+
+    ctx->state = EAP_STATE_EXTENSIONS_RESP;
+
+    major = duplicateBuffer(minor, &cbToken, outputToken);
+    if (GSS_ERROR(major)) {
+        gss_release_buffer(&tmpMinor, &cbToken);
+        return major;
+    }
+
+    gss_release_buffer(&tmpMinor, &cbToken);
+
+    return GSS_S_CONTINUE_NEEDED;
 }
 
 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)
+eapGssSmInitExtensionsResp(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;
+    OM_uint32 major;
+
+    major = gssEapStoreReauthCreds(minor, ctx, cred, inputToken);
+    if (GSS_ERROR(major))
+        return major;
+
+    ctx->state = EAP_STATE_ESTABLISHED;
+
+    return GSS_S_COMPLETE;
 }
 
 static OM_uint32
@@ -426,7 +554,80 @@ eapGssSmInitEstablished(OM_uint32 *minor,
     return GSS_S_BAD_STATUS;
 }
 
-static struct eap_gss_initiator_sm {
+static int
+canReauthP(gss_cred_id_t cred)
+{
+    return (cred != GSS_C_NO_CREDENTIAL &&
+            cred->krbCred != GSS_C_NO_CREDENTIAL &&
+            cred->expiryTime > time(NULL));
+}
+
+static OM_uint32
+eapGssSmInitGssReauth(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)
+{
+    OM_uint32 major, tmpMinor;
+    gss_name_t mechTarget = GSS_C_NO_NAME;
+    gss_OID actualMech = GSS_C_NO_OID;
+    OM_uint32 gssFlags, timeRec;
+
+    assert(cred != GSS_C_NO_CREDENTIAL);
+
+    ctx->flags |= CTX_FLAG_KRB_REAUTH_GSS;
+
+    if (inputToken->length == 0) {
+        major = initBegin(minor, cred, ctx, target, mech,
+                          reqFlags, timeReq, chanBindings,
+                          inputToken, outputToken);
+        if (GSS_ERROR(major))
+            goto cleanup;
+    }
+
+    major = gssEapMechToGlueName(minor, target, &mechTarget);
+    if (GSS_ERROR(major))
+        goto cleanup;
+
+    major = gssInitSecContext(minor,
+                              cred->krbCred,
+                              &ctx->kerberosCtx,
+                              mechTarget,
+                              (gss_OID)gss_mech_krb5,
+                              reqFlags | GSS_C_DCE_STYLE,
+                              timeReq,
+                              chanBindings,
+                              inputToken,
+                              &actualMech,
+                              outputToken,
+                              &gssFlags,
+                              &timeRec);
+    if (GSS_ERROR(major))
+        goto cleanup;
+
+    ctx->gssFlags = gssFlags;
+
+    if (major == GSS_S_COMPLETE) {
+        major = gssEapReauthComplete(minor, ctx, cred, actualMech, timeRec);
+        if (GSS_ERROR(major))
+            goto cleanup;
+
+        ctx->state = EAP_STATE_ESTABLISHED;
+    }
+
+cleanup:
+    gssReleaseName(&tmpMinor, &mechTarget);
+
+    return major;
+}
+
+static struct gss_eap_initiator_sm {
     enum gss_eap_token_type inputTokenType;
     enum gss_eap_token_type outputTokenType;
     OM_uint32 (*processToken)(OM_uint32 *,
@@ -440,11 +641,12 @@ static struct eap_gss_initiator_sm {
                               gss_buffer_t,
                               gss_buffer_t);
 } eapGssInitiatorSm[] = {
-    { 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         },
+    { TOK_TYPE_NONE,    TOK_TYPE_EAP_RESP,      eapGssSmInitIdentity            },
+    { TOK_TYPE_EAP_REQ, TOK_TYPE_EAP_RESP,      eapGssSmInitAuthenticate        },
+    { TOK_TYPE_NONE,    TOK_TYPE_EXT_REQ,       eapGssSmInitExtensionsReq       },
+    { TOK_TYPE_EXT_RESP,TOK_TYPE_NONE,          eapGssSmInitExtensionsResp      },
+    { TOK_TYPE_NONE,    TOK_TYPE_NONE,          eapGssSmInitEstablished         },
+    { TOK_TYPE_GSS_REAUTH, TOK_TYPE_GSS_REAUTH, eapGssSmInitGssReauth           },
 };
 
 OM_uint32
@@ -462,16 +664,16 @@ gss_init_sec_context(OM_uint32 *minor,
                      OM_uint32 *ret_flags,
                      OM_uint32 *time_rec)
 {
-    OM_uint32 major, tmpMinor;
+    OM_uint32 major;
+    OM_uint32 tmpMajor, tmpMinor;
     gss_ctx_id_t ctx = *context_handle;
-    struct eap_gss_initiator_sm *sm = NULL;
-    gss_buffer_desc innerInputToken, innerOutputToken;
+    struct gss_eap_initiator_sm *sm = NULL;
+    gss_buffer_desc innerInputToken;
+    gss_buffer_desc innerOutputToken = GSS_C_EMPTY_BUFFER;
+    enum gss_eap_token_type tokType;
 
     *minor = 0;
 
-    innerOutputToken.length = 0;
-    innerOutputToken.value = NULL;
-
     output_token->length = 0;
     output_token->value = NULL;
 
@@ -490,6 +692,9 @@ gss_init_sec_context(OM_uint32 *minor,
 
         ctx->flags |= CTX_FLAG_INITIATOR;
 
+        if (canReauthP(cred))
+            ctx->state = EAP_STATE_KRB_REAUTH_GSS;
+
         *context_handle = ctx;
     }
 
@@ -499,9 +704,14 @@ gss_init_sec_context(OM_uint32 *minor,
 
     if (input_token != GSS_C_NO_BUFFER) {
         major = gssEapVerifyToken(minor, ctx, input_token,
-                                  sm->inputTokenType, &innerInputToken);
+                                  &tokType, &innerInputToken);
         if (GSS_ERROR(major))
             goto cleanup;
+
+        if (tokType != sm->inputTokenType) {
+            major = GSS_S_DEFECTIVE_TOKEN;
+            goto cleanup;
+        }
     } else {
         innerInputToken.length = 0;
         innerInputToken.value = NULL;
@@ -512,6 +722,8 @@ gss_init_sec_context(OM_uint32 *minor,
      * the status is not GSS_S_COMPLETE or an error status.
      */
     do {
+        sm = &eapGssInitiatorSm[ctx->state];
+
         major = (sm->processToken)(minor,
                                    cred,
                                    ctx,
@@ -524,22 +736,25 @@ gss_init_sec_context(OM_uint32 *minor,
                                    &innerOutputToken);
         if (GSS_ERROR(major))
             goto cleanup;
-    } while (major == GSS_S_CONTINUE_NEEDED && innerOutputToken.length == 0);
+    } while (major == GSS_S_CONTINUE_NEEDED && innerOutputToken.value == NULL);
 
     if (actual_mech_type != NULL) {
         if (!gssEapInternalizeOid(ctx->mechanismUsed, actual_mech_type))
             duplicateOid(&tmpMinor, ctx->mechanismUsed, actual_mech_type);
     }
-    if (innerOutputToken.length != 0) {
-        major = gssEapMakeToken(minor, ctx, &innerOutputToken,
-                                sm->outputTokenType, output_token);
-        if (GSS_ERROR(major))
+    if (innerOutputToken.value != NULL) {
+        tmpMajor = gssEapMakeToken(&tmpMinor, ctx, &innerOutputToken,
+                                   sm->outputTokenType, output_token);
+        if (GSS_ERROR(tmpMajor)) {
+            major = tmpMajor;
+            *minor = tmpMinor;
             goto cleanup;
+        }
     }
     if (ret_flags != NULL)
         *ret_flags = ctx->gssFlags;
     if (time_rec != NULL)
-        gss_context_time(&tmpMinor, ctx, time_rec);
+        gssEapContextTime(&tmpMinor, ctx, time_rec);
 
     assert(ctx->state == EAP_STATE_ESTABLISHED || major == GSS_S_CONTINUE_NEEDED);