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authorRuslan Babayev <ruslan@babayev.com>2020-12-23 01:08:38 -0800
committerDamjan Marion <dmarion@me.com>2020-12-25 11:43:59 +0000
commit05bc31be20849e5994eb798d9eed0ad506a57d18 (patch)
treeb0cf8b8848d31b3a0ace562e916656106f6bee69 /src
parentc547e91df7083007c87615ac1e37b6f223e575e9 (diff)
build: add plugin dependencies only when present
This fixes build for VPP_EXTERNAL_PROJECT plugin with missing PLUGIN_API_FILES. Type: fix Signed-off-by: Ruslan Babayev <ruslan@babayev.com> Change-Id: I687bedcd828d834b0a7de1363f0b2d063f75ee17
Diffstat (limited to 'src')
-rw-r--r--src/cmake/plugin.cmake4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/cmake/plugin.cmake b/src/cmake/plugin.cmake
index c165b5914dc..aca90ab7fb6 100644
--- a/src/cmake/plugin.cmake
+++ b/src/cmake/plugin.cmake
@@ -56,7 +56,9 @@ macro(add_vpp_plugin name)
if(NOT VPP_EXTERNAL_PROJECT)
list(APPEND deps vpp_version_h api_headers)
endif()
- add_dependencies(${plugin_name} ${deps})
+ if(deps)
+ add_dependencies(${plugin_name} ${deps})
+ endif()
set_target_properties(${plugin_name} PROPERTIES
PREFIX ""
LIBRARY_OUTPUT_DIRECTORY ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/vpp_plugins)
href='#n165'>165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 
/*
 * Copyright (c) 2016 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <vnet/mpls/mpls_types.h>
#include <vnet/dpo/drop_dpo.h>

#include <vnet/fib/fib_table.h>
#include <vnet/fib/fib_entry.h>
#include <vnet/fib/fib_entry_src.h>
#include <vnet/fib/mpls_fib.h>

/**
 * Source initialisation Function 
 */
static void
fib_entry_src_mpls_init (fib_entry_src_t *src)
{
    mpls_eos_bit_t eos;

    src->fes_flags = FIB_ENTRY_SRC_FLAG_NONE;
    src->mpls.fesm_label = MPLS_LABEL_INVALID;

    FOR_EACH_MPLS_EOS_BIT(eos)
    {
	src->mpls.fesm_lfes[eos] = FIB_NODE_INDEX_INVALID;
    }
}

/**
 * Source deinitialisation Function 
 */
static void
fib_entry_src_mpls_deinit (fib_entry_src_t *src)
{
}

static void
fib_entry_src_mpls_remove (fib_entry_src_t *src)
{
    src->fes_pl = FIB_NODE_INDEX_INVALID;
    src->mpls.fesm_label = MPLS_LABEL_INVALID;
}

static void
fib_entry_src_mpls_add (fib_entry_src_t *src,
                        const fib_entry_t *entry,
                        fib_entry_flag_t flags,
                        fib_protocol_t proto,
                        const dpo_id_t *dpo)
{
    src->fes_pl =
	fib_path_list_create_special(proto,
				     FIB_PATH_LIST_FLAG_DROP,
				     drop_dpo_get(fib_proto_to_dpo(proto)));
}

static void
fib_entry_src_mpls_set_data (fib_entry_src_t *src,
                             const fib_entry_t *entry,
                             const void *data)
{
    fib_protocol_t payload_proto;
    fib_node_index_t fei;
    mpls_label_t label;
    mpls_eos_bit_t eos;

    /*
     * post MPLS table alloc and the possible rea-alloc of fib entrys
     * the entry pointer will no longer be valid. so save its index
     */
    payload_proto = entry->fe_prefix.fp_proto;
    fei = fib_entry_get_index(entry);
    label = *(mpls_label_t*)data;

    if (MPLS_LABEL_INVALID == label)
    {
        /*
         * removing the local label
         */
        FOR_EACH_MPLS_EOS_BIT(eos)
        {
	    fib_table_entry_delete_index(src->mpls.fesm_lfes[eos],
					 FIB_SOURCE_SPECIAL);
        }
        fib_table_unlock(MPLS_FIB_DEFAULT_TABLE_ID, FIB_PROTOCOL_MPLS);
        src->mpls.fesm_label = label;
    }
    else
    {
	fib_prefix_t prefix = {
	    .fp_proto = FIB_PROTOCOL_MPLS,
	    .fp_label = label,
	};
	fib_node_index_t fib_index;
	dpo_id_t dpo = DPO_INVALID;

        /*
         * adding a new local label. make sure the MPLS fib exists.
         */
        if (MPLS_LABEL_INVALID == src->mpls.fesm_label)
        {
            fib_index =
		fib_table_find_or_create_and_lock(FIB_PROTOCOL_MPLS,
						  MPLS_FIB_DEFAULT_TABLE_ID);
        }
	else
	{
	    fib_index = mpls_fib_index_from_table_id(MPLS_FIB_DEFAULT_TABLE_ID);

	    /*
	     * if this is a change in label, reomve the old one first
	     */
	    if (src->mpls.fesm_label != label)
	    {
		FOR_EACH_MPLS_EOS_BIT(eos)
		{
		    ASSERT(FIB_NODE_INDEX_INVALID != src->mpls.fesm_lfes[eos]);
		    fib_table_entry_delete_index(src->mpls.fesm_lfes[eos],
						 FIB_SOURCE_SPECIAL);
		}
	    }
	}

        src->mpls.fesm_label = label;

	FOR_EACH_MPLS_EOS_BIT(eos)
	{
	    prefix.fp_eos = eos;
	    prefix.fp_payload_proto = fib_proto_to_dpo(payload_proto);

	    fib_entry_contribute_forwarding(fei,
					    (eos ?
					     FIB_FORW_CHAIN_TYPE_MPLS_EOS :
					     FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS),
					    &dpo);
	    src->mpls.fesm_lfes[eos] = 
		fib_table_entry_special_dpo_add(fib_index,
						&prefix,
						FIB_SOURCE_SPECIAL,
						FIB_ENTRY_FLAG_EXCLUSIVE,
						&dpo);
	    dpo_reset(&dpo);
	}
    }
}

static const void *
fib_entry_src_mpls_get_data (fib_entry_src_t *src,
                             const fib_entry_t *entry)
{
    return (&(src->mpls.fesm_label));
}

static u8*
fib_entry_src_mpls_format (fib_entry_src_t *src,
			   u8* s)
{
    return (format(s, "MPLS local-label:%d", src->mpls.fesm_label));
}

const static fib_entry_src_vft_t mpls_src_vft = {
    .fesv_init = fib_entry_src_mpls_init,
    .fesv_deinit = fib_entry_src_mpls_deinit,
    .fesv_add = fib_entry_src_mpls_add,
    .fesv_remove = fib_entry_src_mpls_remove,
    .fesv_format = fib_entry_src_mpls_format,
    .fesv_set_data = fib_entry_src_mpls_set_data,
    .fesv_get_data = fib_entry_src_mpls_get_data,
    /*
     * .fesv_fwd_update = fib_entry_src_mpls_fwd_update,
     *  When the forwarding for the IP entry is updated, any MPLS chains
     * it has created are also updated. Since the MPLS entry will have already
     * installed that chain/load-balance there is no need to update the netry
     * FIXME: later: propagate any walk to the children of the MPLS entry. for SR
     */
};

void
fib_entry_src_mpls_register (void)
{
    fib_entry_src_register(FIB_SOURCE_MPLS, &mpls_src_vft);    
}