separate {init,accept}_sec_context into gss_/gssEap pattern

[moonshot.git] / moonshot / mech_eap / init_sec_context.c

diff --git a/moonshot/mech_eap/init_sec_context.c b/moonshot/mech_eap/init_sec_context.c
index e08e059..e5bc107 100644 (file)
--- a/moonshot/mech_eap/init_sec_context.c
+++ b/moonshot/mech_eap/init_sec_context.c
@@ -718,6 +718,30 @@ cleanup:
 }
 
 static OM_uint32
+eapGssSmInitGssFlags(OM_uint32 *minor,
+                     gss_cred_id_t cred GSSEAP_UNUSED,
+                     gss_ctx_id_t ctx,
+                     gss_name_t target GSSEAP_UNUSED,
+                     gss_OID mech GSSEAP_UNUSED,
+                     OM_uint32 reqFlags GSSEAP_UNUSED,
+                     OM_uint32 timeReq GSSEAP_UNUSED,
+                     gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
+                     gss_buffer_t inputToken GSSEAP_UNUSED,
+                     gss_buffer_t outputToken,
+                     OM_uint32 *smFlags GSSEAP_UNUSED)
+{
+    unsigned char wireFlags[4];
+    gss_buffer_desc flagsBuf;
+
+    store_uint32_be(ctx->gssFlags & GSSEAP_WIRE_FLAGS_MASK, wireFlags);
+
+    flagsBuf.length = sizeof(wireFlags);
+    flagsBuf.value = wireFlags;
+
+    return duplicateBuffer(minor, &flagsBuf, outputToken);
+}
+
+static OM_uint32
 eapGssSmInitGssChannelBindings(OM_uint32 *minor,
                                gss_cred_id_t cred GSSEAP_UNUSED,
                                gss_ctx_id_t ctx,
@@ -749,6 +773,33 @@ eapGssSmInitGssChannelBindings(OM_uint32 *minor,
     return GSS_S_CONTINUE_NEEDED;
 }
 
+static OM_uint32
+eapGssSmInitInitiatorMIC(OM_uint32 *minor,
+                         gss_cred_id_t cred GSSEAP_UNUSED,
+                         gss_ctx_id_t ctx,
+                         gss_name_t target GSSEAP_UNUSED,
+                         gss_OID mech GSSEAP_UNUSED,
+                         OM_uint32 reqFlags GSSEAP_UNUSED,
+                         OM_uint32 timeReq GSSEAP_UNUSED,
+                         gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
+                         gss_buffer_t inputToken GSSEAP_UNUSED,
+                         gss_buffer_t outputToken,
+                         OM_uint32 *smFlags)
+{
+    OM_uint32 major;
+
+    major = gssEapMakeTokenMIC(minor, ctx, outputToken);
+    if (GSS_ERROR(major))
+        return major;
+
+    GSSEAP_SM_TRANSITION_NEXT(ctx);
+
+    *minor = 0;
+    *smFlags |= SM_FLAG_OUTPUT_TOKEN_CRITICAL;
+
+    return GSS_S_CONTINUE_NEEDED;
+}
+ 
 #ifdef GSSEAP_ENABLE_REAUTH
 static OM_uint32
 eapGssSmInitReauthCreds(OM_uint32 *minor,
@@ -777,39 +828,24 @@ eapGssSmInitReauthCreds(OM_uint32 *minor,
 #endif /* GSSEAP_ENABLE_REAUTH */
 
 static OM_uint32
-eapGssSmInitCompleteInitiatorExts(OM_uint32 *minor,
-                                  gss_cred_id_t cred GSSEAP_UNUSED,
-                                  gss_ctx_id_t ctx,
-                                  gss_name_t target GSSEAP_UNUSED,
-                                  gss_OID mech GSSEAP_UNUSED,
-                                  OM_uint32 reqFlags GSSEAP_UNUSED,
-                                  OM_uint32 timeReq GSSEAP_UNUSED,
-                                  gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
-                                  gss_buffer_t inputToken GSSEAP_UNUSED,
-                                  gss_buffer_t outputToken GSSEAP_UNUSED,
-                                  OM_uint32 *smFlags)
+eapGssSmInitAcceptorMIC(OM_uint32 *minor,
+                        gss_cred_id_t cred GSSEAP_UNUSED,
+                        gss_ctx_id_t ctx,
+                        gss_name_t target GSSEAP_UNUSED,
+                        gss_OID mech GSSEAP_UNUSED,
+                        OM_uint32 reqFlags GSSEAP_UNUSED,
+                        OM_uint32 timeReq GSSEAP_UNUSED,
+                        gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
+                        gss_buffer_t inputToken,
+                        gss_buffer_t outputToken GSSEAP_UNUSED,
+                        OM_uint32 *smFlags GSSEAP_UNUSED)
 {
-    GSSEAP_SM_TRANSITION_NEXT(ctx);
-
-    *minor = 0;
-    *smFlags |= SM_FLAG_FORCE_SEND_TOKEN;
+    OM_uint32 major;
 
-    return GSS_S_CONTINUE_NEEDED;
-}
+    major = gssEapVerifyTokenMIC(minor, ctx, inputToken);
+    if (GSS_ERROR(major))
+        return major;
 
-static OM_uint32
-eapGssSmInitCompleteAcceptorExts(OM_uint32 *minor,
-                                 gss_cred_id_t cred GSSEAP_UNUSED,
-                                 gss_ctx_id_t ctx,
-                                 gss_name_t target GSSEAP_UNUSED,
-                                 gss_OID mech GSSEAP_UNUSED,
-                                 OM_uint32 reqFlags GSSEAP_UNUSED,
-                                 OM_uint32 timeReq GSSEAP_UNUSED,
-                                 gss_channel_bindings_t chanBindings GSSEAP_UNUSED,
-                                 gss_buffer_t inputToken GSSEAP_UNUSED,
-                                 gss_buffer_t outputToken GSSEAP_UNUSED,
-                                 OM_uint32 *smFlags GSSEAP_UNUSED)
-{
     GSSEAP_SM_TRANSITION(ctx, GSSEAP_STATE_ESTABLISHED);
 
     *minor = 0;
@@ -869,6 +905,13 @@ static struct gss_eap_sm eapGssInitiatorSm[] = {
     },
     {
         ITOK_TYPE_NONE,
+        ITOK_TYPE_GSS_FLAGS,
+        GSSEAP_STATE_INITIATOR_EXTS,
+        0,
+        eapGssSmInitGssFlags
+    },
+    {
+        ITOK_TYPE_NONE,
         ITOK_TYPE_GSS_CHANNEL_BINDINGS,
         GSSEAP_STATE_INITIATOR_EXTS,
         SM_ITOK_FLAG_REQUIRED,
@@ -876,10 +919,10 @@ static struct gss_eap_sm eapGssInitiatorSm[] = {
     },
     {
         ITOK_TYPE_NONE,
-        ITOK_TYPE_NONE,
+        ITOK_TYPE_INITIATOR_MIC,
         GSSEAP_STATE_INITIATOR_EXTS,
-        0,
-        eapGssSmInitCompleteInitiatorExts
+        SM_ITOK_FLAG_REQUIRED,
+        eapGssSmInitInitiatorMIC
     },
 #ifdef GSSEAP_ENABLE_REAUTH
     {
@@ -892,18 +935,18 @@ static struct gss_eap_sm eapGssInitiatorSm[] = {
 #endif
     /* other extensions go here */
     {
-        ITOK_TYPE_NONE,
+        ITOK_TYPE_ACCEPTOR_MIC,
         ITOK_TYPE_NONE,
         GSSEAP_STATE_ACCEPTOR_EXTS,
-        0,
-        eapGssSmInitCompleteAcceptorExts
+        SM_ITOK_FLAG_REQUIRED,
+        eapGssSmInitAcceptorMIC
     }
 };
 
 OM_uint32
-gss_init_sec_context(OM_uint32 *minor,
+gssEapInitSecContext(OM_uint32 *minor,
                      gss_cred_id_t cred,
-                     gss_ctx_id_t *context_handle,
+                     gss_ctx_id_t ctx,
                      gss_name_t target_name,
                      gss_OID mech_type,
                      OM_uint32 req_flags,
@@ -916,31 +959,7 @@ gss_init_sec_context(OM_uint32 *minor,
                      OM_uint32 *time_rec)
 {
     OM_uint32 major, tmpMinor;
-    gss_ctx_id_t ctx = *context_handle;
-    int initialContextToken = 0;
-
-    *minor = 0;
-
-    output_token->length = 0;
-    output_token->value = NULL;
-
-    if (ctx == GSS_C_NO_CONTEXT) {
-        if (input_token != GSS_C_NO_BUFFER && input_token->length != 0) {
-            *minor = GSSEAP_WRONG_SIZE;
-            return GSS_S_DEFECTIVE_TOKEN;
-        }
-
-        major = gssEapAllocContext(minor, &ctx);
-        if (GSS_ERROR(major))
-            return major;
-
-        ctx->flags |= CTX_FLAG_INITIATOR;
-        initialContextToken = 1;
-
-        *context_handle = ctx;
-    }
-
-    GSSEAP_MUTEX_LOCK(&ctx->mutex);
+    int initialContextToken = (ctx->mechanismUsed == GSS_C_NO_OID);
 
     if (cred != GSS_C_NO_CREDENTIAL)
         GSSEAP_MUTEX_LOCK(&cred->mutex);
@@ -1002,6 +1021,66 @@ cleanup:
         GSSEAP_MUTEX_UNLOCK(&cred->mutex);
     if (ctx->cred != GSS_C_NO_CREDENTIAL)
         GSSEAP_MUTEX_UNLOCK(&ctx->cred->mutex);
+
+    return major;
+}
+
+OM_uint32 GSSAPI_CALLCONV
+gss_init_sec_context(OM_uint32 *minor,
+                     gss_cred_id_t cred,
+                     gss_ctx_id_t *context_handle,
+                     gss_name_t target_name,
+                     gss_OID mech_type,
+                     OM_uint32 req_flags,
+                     OM_uint32 time_req,
+                     gss_channel_bindings_t input_chan_bindings,
+                     gss_buffer_t input_token,
+                     gss_OID *actual_mech_type,
+                     gss_buffer_t output_token,
+                     OM_uint32 *ret_flags,
+                     OM_uint32 *time_rec)
+{
+    OM_uint32 major, tmpMinor;
+    gss_ctx_id_t ctx = *context_handle;
+
+    *minor = 0;
+
+    output_token->length = 0;
+    output_token->value = NULL;
+
+    assert(ctx == GSS_C_NO_CONTEXT || ctx->mechanismUsed != GSS_C_NO_OID);
+
+    if (ctx == GSS_C_NO_CONTEXT) {
+        if (input_token != GSS_C_NO_BUFFER && input_token->length != 0) {
+            *minor = GSSEAP_WRONG_SIZE;
+            return GSS_S_DEFECTIVE_TOKEN;
+        }
+
+        major = gssEapAllocContext(minor, &ctx);
+        if (GSS_ERROR(major))
+            return major;
+
+        ctx->flags |= CTX_FLAG_INITIATOR;
+
+        *context_handle = ctx;
+    }
+
+    GSSEAP_MUTEX_LOCK(&ctx->mutex);
+
+    major = gssEapInitSecContext(minor,
+                                 cred,
+                                 ctx,
+                                 target_name,
+                                 mech_type,
+                                 req_flags,
+                                 time_req,
+                                 input_chan_bindings,
+                                 input_token,
+                                 actual_mech_type,
+                                 output_token,
+                                 ret_flags,
+                                 time_rec);
+
     GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
 
     if (GSS_ERROR(major))