ctl_socket.h

   1 /*****************************************************************************
   2   Copyright (c) 2006 EMC Corporation.
   3
   4   This program is free software; you can redistribute it and/or modify it
   5   under the terms of the GNU General Public License as published by the Free
   6   Software Foundation; either version 2 of the License, or (at your option)
   7   any later version.
   8
   9   This program is distributed in the hope that it will be useful, but WITHOUT
  10   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12   more details.
  13
  14   You should have received a copy of the GNU General Public License along with
  15   this program; if not, write to the Free Software Foundation, Inc., 59
  16   Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17
  18   The full GNU General Public License is included in this distribution in the
  19   file called LICENSE.
  20
  21   Authors: Srinivas Aji <Aji_Srinivas@emc.com>
  22
  23 ******************************************************************************/
  24
  25 #ifndef CTL_SOCKET_H
  26 #define CTL_SOCKET_H
  27
  28 #include <sys/types.h>
  29 #include <string.h>
  30
  31 #include "ctl_functions.h"
  32
  33 struct ctl_msg_hdr {
  34         int cmd;
  35         int lin;
  36         int lout;
  37         int llog;
  38         int res;
  39 };
  40
  41 #define LOG_STRING_LEN 256
  42
  43 typedef struct _log_string
  44 {
  45         char buf[LOG_STRING_LEN];
  46 } LogString;
  47
  48 #define set_socket_address(sa, string) \
  49  do {\
  50   (sa)->sun_family = AF_UNIX; \
  51   memset((sa)->sun_path, 0, sizeof((sa)->sun_path)); \
  52   strcpy((sa)->sun_path + 1, (string)); \
  53  } while (0)
  54
  55 #define RSTP_SERVER_SOCK_NAME ".rstp_server"
  56
  57 /* COMMANDS */
  58
  59 #if 0
  60 int CTL_enable_bridge_rstp(int br_index, int enable);
  61 #endif
  62 #define CMD_CODE_enable_bridge_rstp  101
  63 #define enable_bridge_rstp_ARGS (int br_index, int enable)
  64 struct enable_bridge_rstp_IN {
  65         int br_index;
  66         int enable;
  67 };
  68 struct enable_bridge_rstp_OUT {
  69 };
  70 #define enable_bridge_rstp_COPY_IN \
  71   ({ in->br_index = br_index; in->enable = enable; })
  72 #define enable_bridge_rstp_COPY_OUT ({ (void)0; })
  73 #define enable_bridge_rstp_CALL (in->br_index, in->enable)
  74
  75 #if 0
  76 int CTL_get_bridge_status(int br_index, STP_BridgeStatus *status);
  77 #endif
  78 #define CMD_CODE_get_bridge_status  102
  79 #define get_bridge_status_ARGS (int br_index, STP_BridgeStatus *status)
  80 struct get_bridge_status_IN {
  81         int br_index;
  82 };
  83 struct get_bridge_status_OUT {
  84         STP_BridgeStatus status;
  85 };
  86 #define get_bridge_status_COPY_IN \
  87   ({ in->br_index = br_index; })
  88 #define get_bridge_status_COPY_OUT ({ *status = out->status; })
  89 #define get_bridge_status_CALL (in->br_index, &out->status)
  90
  91 #if 0
  92 int CTL_set_bridge_config(int br_index,  STP_BridgeConfig *cfg);
  93 #endif
  94 #define CMD_CODE_set_bridge_config  103
  95 #define set_bridge_config_ARGS (int br_index, STP_BridgeConfig *cfg)
  96 struct set_bridge_config_IN {
  97         int br_index;
  98         STP_BridgeConfig cfg;
  99 };
 100 struct set_bridge_config_OUT {
 101 };
 102 #define set_bridge_config_COPY_IN \
 103   ({ in->br_index = br_index; in->cfg = *cfg; })
 104 #define set_bridge_config_COPY_OUT ({ (void)0; })
 105 #define set_bridge_config_CALL (in->br_index, &in->cfg)
 106
 107 #if 0
 108 int CTL_get_port_status(int br_index, int port_index, STP_PortStatus *status);
 109 #endif
 110 #define CMD_CODE_get_port_status  104
 111 #define get_port_status_ARGS (int br_index, int port_index, STP_PortStatus *status)
 112 struct get_port_status_IN {
 113         int br_index;
 114         int port_index;
 115 };
 116 struct get_port_status_OUT {
 117         STP_PortStatus status;
 118 };
 119 #define get_port_status_COPY_IN \
 120   ({ in->br_index = br_index; in->port_index = port_index; })
 121 #define get_port_status_COPY_OUT ({ *status = out->status; })
 122 #define get_port_status_CALL (in->br_index, in->port_index, &out->status)
 123
 124 #if 0
 125 int CTL_set_port_config(int br_index, int port_index, STP_PortConfig *cfg);
 126 #endif
 127 #define CMD_CODE_set_port_config  105
 128 #define set_port_config_ARGS (int br_index, int port_index, STP_PortConfig *cfg)
 129 struct set_port_config_IN {
 130         int br_index;
 131         int port_index;
 132         STP_PortConfig cfg;
 133 };
 134 struct set_port_config_OUT {
 135 };
 136 #define set_port_config_COPY_IN \
 137   ({ in->br_index = br_index; in->port_index = port_index; in->cfg = *cfg; })
 138 #define set_port_config_COPY_OUT ({ (void)0; })
 139 #define set_port_config_CALL (in->br_index, in->port_index, &in->cfg)
 140
 141 #if 0
 142 int CTL_port_mcheck(int br_index, int port_index);
 143 #endif
 144 #define CMD_CODE_port_mcheck  106
 145 #define port_mcheck_ARGS (int br_index, int port_index)
 146 struct port_mcheck_IN {
 147         int br_index;
 148         int port_index;
 149 };
 150 struct port_mcheck_OUT {
 151 };
 152 #define port_mcheck_COPY_IN \
 153   ({ in->br_index = br_index; in->port_index = port_index; })
 154 #define port_mcheck_COPY_OUT ({ (void)0; })
 155 #define port_mcheck_CALL (in->br_index, in->port_index)
 156
 157 #if 0
 158 int CTL_set_debug_level(int level);
 159 #endif
 160 #define CMD_CODE_set_debug_level 107
 161 #define set_debug_level_ARGS (int level)
 162 struct set_debug_level_IN {
 163         int level;
 164 };
 165 struct set_debug_level_OUT {
 166 };
 167 #define set_debug_level_COPY_IN \
 168   ({ in->level = level; })
 169 #define set_debug_level_COPY_OUT ({ (void)0; })
 170 #define set_debug_level_CALL (in->level)
 171
 172 /* General case part in ctl command server switch */
 173 #define SERVER_MESSAGE_CASE(name) \
 174 case CMD_CODE_ ## name : do { \
 175   if (0) LOG("CTL command " #name); \
 176   struct name ## _IN in0, *in = &in0; \
 177   struct name ## _OUT out0, *out = &out0; \
 178   if (sizeof(*in) != lin || sizeof(*out) != lout) { \
 179   LOG("Bad sizes lin %d != %zd or lout %d != %zd", \
 180        lin, sizeof(*in), lout, sizeof(*out)); \
 181     return -1; \
 182   } \
 183   memcpy(in, inbuf, lin); \
 184   int r = CTL_ ## name name ## _CALL; \
 185   if (r) return r; \
 186   if (outbuf) memcpy(outbuf, out, lout); \
 187   return r; \
 188 } while (0)
 189
 190 /* Wraper for the control functions in the control command client */
 191 #define CLIENT_SIDE_FUNCTION(name) \
 192 int CTL_ ## name name ## _ARGS \
 193 { \
 194   struct name ## _IN in0, *in=&in0; \
 195   struct name ## _OUT out0, *out = &out0; \
 196   name ## _COPY_IN; \
 197   int res = 0; \
 198   LogString log = { .buf = "" };                                        \
 199   int r = send_ctl_message(CMD_CODE_ ## name, in, sizeof(*in),          \
 200                            out, sizeof(*out), &log, &res);              \
 201   if (r || res) LOG("Got return code %d, %d\n%s", r, res, log.buf);     \
 202   if (r) return r; \
 203   if (res) return res; \
 204   name ## _COPY_OUT; \
 205   return 0; \
 206 }
 207
 208 #endif