zebra/zebra_mlag.h

   1 /* Zebra mlag header.
   2  * Copyright (C) 2018 Cumulus Networks, Inc.
   3  *                    Donald Sharp
   4  *
   5  * This file is part of FRR.
   6  *
   7  * FRR is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; either version 2, or (at your option) any
  10  * later version.
  11  *
  12  * FRR is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with FRR; see the file COPYING.  If not, write to the Free
  19  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  20  * 02111-1307, USA.
  21  */
  22 #ifndef __ZEBRA_MLAG_H__
  23 #define __ZEBRA_MLAG_H__
  24
  25 #include "mlag.h"
  26 #include "zclient.h"
  27 #include "zebra/zserv.h"
  28
  29 #ifdef HAVE_PROTOBUF_VERSION_3
  30 #include "mlag/mlag.pb-c.h"
  31 #endif
  32
  33 #ifdef __cplusplus
  34 extern "C" {
  35 #endif
  36
  37 #define ZEBRA_MLAG_BUF_LIMIT 2048
  38 #define ZEBRA_MLAG_LEN_SIZE 4
  39
  40 DECLARE_HOOK(zebra_mlag_private_write_data,
  41              (uint8_t *data, uint32_t len), (data, len))
  42 DECLARE_HOOK(zebra_mlag_private_monitor_state, (), ())
  43 DECLARE_HOOK(zebra_mlag_private_open_channel, (), ())
  44 DECLARE_HOOK(zebra_mlag_private_close_channel, (), ())
  45 DECLARE_HOOK(zebra_mlag_private_cleanup_data, (), ())
  46
  47 extern uint8_t mlag_wr_buffer[ZEBRA_MLAG_BUF_LIMIT];
  48 extern uint8_t mlag_rd_buffer[ZEBRA_MLAG_BUF_LIMIT];
  49 extern uint32_t mlag_rd_buf_offset;
  50
  51 static inline void zebra_mlag_reset_read_buffer(void)
  52 {
  53         memset(mlag_wr_buffer, 0, ZEBRA_MLAG_BUF_LIMIT);
  54         mlag_rd_buf_offset = 0;
  55 }
  56
  57 enum zebra_mlag_state {
  58         MLAG_UP = 1,
  59         MLAG_DOWN = 2,
  60 };
  61
  62 void zebra_mlag_init(void);
  63 void zebra_mlag_terminate(void);
  64 enum mlag_role zebra_mlag_get_role(void);
  65 void zebra_mlag_client_register(ZAPI_HANDLER_ARGS);
  66 void zebra_mlag_client_unregister(ZAPI_HANDLER_ARGS);
  67 void zebra_mlag_forward_client_msg(ZAPI_HANDLER_ARGS);
  68 void zebra_mlag_send_register(void);
  69 void zebra_mlag_send_deregister(void);
  70 void zebra_mlag_handle_process_state(enum zebra_mlag_state state);
  71 void zebra_mlag_process_mlag_data(uint8_t *data, uint32_t len);
  72
  73 /*
  74  * ProtoBuffer Api's
  75  */
  76 int zebra_mlag_protobuf_encode_client_data(struct stream *s,
  77                                            uint32_t *msg_type);
  78 int zebra_mlag_protobuf_decode_message(struct stream *s, uint8_t *data,
  79                                        uint32_t len);
  80 #ifdef __cplusplus
  81 }
  82 #endif
  83
  84 #endif