Refactor

[mech_eap.git] / accept_sec_context.c

diff --git a/accept_sec_context.c b/accept_sec_context.c
index fe2c8dd..25f35ce 100644 (file)
--- a/accept_sec_context.c
+++ b/accept_sec_context.c
@@ -32,11 +32,39 @@
 
 #include "gssapiP_eap.h"
 
+static OM_uint32
+eapGssSmAcceptAuthenticate(OM_uint32 *minor,
+                           gss_ctx_id_t ctx,
+                           gss_cred_id_t cred,
+                           gss_buffer_t inputToken,
+                           gss_channel_bindings_t chanBindings,
+                           gss_buffer_t outputToken)
+{
+    OM_uint32 major, tmpMinor;
+
+cleanup:
+    return major;
+}
+
+
+static struct eap_gss_acceptor_sm {
+    enum gss_eap_token_type inputTokenType;
+    enum gss_eap_token_type outputTokenType;
+    OM_uint32 (*processToken)(OM_uint32 *,
+                              gss_ctx_id_t,
+                              gss_cred_id_t,
+                              gss_buffer_t,
+                              gss_channel_bindings_t,
+                              gss_buffer_t);
+} eapGssAcceptorSm[] = {
+    { TOK_TYPE_EAP_RESP, TOK_TYPE_EAP_REQ, NULL },
+};
+
 OM_uint32
 gss_accept_sec_context(OM_uint32 *minor,
                        gss_ctx_id_t *context_handle,
-                       gss_cred_id_t acceptor_cred_handle,
-                       gss_buffer_t input_token_buffer,
+                       gss_cred_id_t cred,
+                       gss_buffer_t input_token,
                        gss_channel_bindings_t input_chan_bindings,
                        gss_name_t *src_name,
                        gss_OID *mech_type,
@@ -45,5 +73,84 @@ gss_accept_sec_context(OM_uint32 *minor,
                        OM_uint32 *time_rec,
                        gss_cred_id_t *delegated_cred_handle)
 {
-    GSSEAP_NOT_IMPLEMENTED;
+    OM_uint32 major, tmpMinor;
+    gss_ctx_id_t ctx = *context_handle;
+    struct eap_gss_acceptor_sm *sm = NULL;
+    gss_buffer_desc innerInputToken, innerOutputToken;
+    
+    *minor = 0;
+
+    innerOutputToken.length = 0;
+    innerOutputToken.value = NULL;
+
+    output_token->length = 0;
+    output_token->value = NULL;
+
+    if (cred != GSS_C_NO_CREDENTIAL && !(cred->flags & CRED_FLAG_ACCEPT)) {
+        return GSS_S_NO_CRED;
+    }
+
+    if (input_token == GSS_C_NO_BUFFER || input_token->length == 0) {
+        return GSS_S_DEFECTIVE_TOKEN;
+    }
+
+    if (ctx == GSS_C_NO_CONTEXT) {
+        major = gssEapAllocContext(minor, &ctx);
+        if (GSS_ERROR(major))
+            return major;
+
+        *context_handle = ctx;
+    }
+
+    GSSEAP_MUTEX_LOCK(&ctx->mutex);
+
+    sm = &eapGssAcceptorSm[ctx->state];
+
+    major = gssEapVerifyToken(minor, ctx, input_token,
+                              sm->inputTokenType, &innerInputToken);
+    if (GSS_ERROR(major))
+        goto cleanup;
+
+    major = (sm->processToken)(minor,
+                               ctx,
+                               cred,
+                               &innerInputToken,
+                               input_chan_bindings,
+                               &innerOutputToken);
+    if (GSS_ERROR(major))
+        goto cleanup;
+
+    if (src_name != NULL && ctx->initiatorName != GSS_C_NO_NAME) {
+        major = gss_duplicate_name(&minor, ctx->initiatorName, src_name);
+        if (GSS_ERROR(major))
+            goto cleanup;
+    }
+    if (mech_type != NULL) {
+        if (!gssEapInternalizeOid(ctx->mechanismUsed, mech_type))
+            duplicateOid(&tmpMinor, ctx->mechanismUsed, mech_type);
+    }
+    if (innerOutputToken.length != 0) {
+        major = gssEapMakeToken(minor, ctx, &innerOutputToken,
+                                sm->outputTokenType, output_token);
+        if (GSS_ERROR(major))
+            goto cleanup;
+    }
+    if (ret_flags != NULL)
+        *ret_flags = ctx->gssFlags;
+    if (time_rec != NULL)
+        gss_context_time(&tmpMinor, ctx, time_rec);
+    if (delegated_cred_handle != NULL)
+        *delegated_cred_handle = GSS_C_NO_CREDENTIAL;
+
+    assert(ctx->state == EAP_STATE_ESTABLISHED || major == GSS_S_CONTINUE_NEEDED);
+
+cleanup:
+    GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
+
+    if (GSS_ERROR(major))
+        gssEapReleaseContext(&tmpMinor, context_handle);
+
+    gss_release_buffer(&tmpMinor, &innerOutputToken);
+
+    return major;
 }