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Sources/rpcd/include/rpcd/plugin.h

  1 /*
  2  * rpcd - UBUS RPC server
  3  *
  4  *   Copyright (C) 2013-2014 Jo-Philipp Wich <jow@openwrt.org>
  5  *
  6  * Permission to use, copy, modify, and/or distribute this software for any
  7  * purpose with or without fee is hereby granted, provided that the above
  8  * copyright notice and this permission notice appear in all copies.
  9  *
 10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 17  */
 18 
 19 #ifndef __RPC_PLUGIN_H
 20 #define __RPC_PLUGIN_H
 21 
 22 #define _GNU_SOURCE /* asprintf() */
 23 
 24 #include <dlfcn.h>
 25 #include <stdio.h>
 26 #include <fcntl.h>
 27 #include <unistd.h>
 28 #include <limits.h>
 29 #include <dirent.h>
 30 #include <sys/stat.h>
 31 #include <sys/wait.h>
 32 #include <sys/types.h>
 33 
 34 #include <libubox/blobmsg_json.h>
 35 #include <libubus.h>
 36 #include <json-c/json.h>
 37 
 38 #include <rpcd/exec.h>
 39 #include <rpcd/session.h>
 40 
 41 /* location of plugin executables */
 42 #define RPC_PLUGIN_DIRECTORY    "/usr/libexec/rpcd"
 43 
 44 /* location of plugin libraries */
 45 #define RPC_LIBRARY_DIRECTORY   "/usr/lib/rpcd"
 46 
 47 struct rpc_daemon_ops {
 48     bool (*session_access)(const char *sid, const char *scope,
 49                            const char *object, const char *function);
 50     void (*session_create_cb)(struct rpc_session_cb *cb);
 51     void (*session_destroy_cb)(struct rpc_session_cb *cb);
 52     int (*exec)(const char **args,
 53                 rpc_exec_write_cb_t in, rpc_exec_read_cb_t out,
 54                 rpc_exec_read_cb_t err, rpc_exec_done_cb_t end,
 55                 void *priv, struct ubus_context *ctx,
 56                 struct ubus_request_data *req);
 57     int *exec_timeout;
 58 };
 59 
 60 struct rpc_plugin {
 61     struct list_head list;
 62     int (*init)(const struct rpc_daemon_ops *ops, struct ubus_context *ctx);
 63 };
 64 
 65 int rpc_plugin_api_init(struct ubus_context *ctx);
 66 
 67 #endif
 68 

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