include/rpcd/session.h

   1 /*
   2  * rpcd - UBUS RPC server
   3  *
   4  *   Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
   5  *   Copyright (C) 2013-2014 Jo-Philipp Wich <jow@openwrt.org>
   6  *
   7  * Permission to use, copy, modify, and/or distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 #ifndef __RPC_SESSION_H
  21 #define __RPC_SESSION_H
  22
  23 #include <ctype.h>
  24 #include <fcntl.h>
  25 #include <dirent.h>
  26 #include <unistd.h>
  27 #include <sys/stat.h>
  28 #include <sys/types.h>
  29
  30 #include <libubox/avl.h>
  31 #include <libubox/blobmsg_json.h>
  32
  33 #define RPC_SID_LEN     32
  34 #define RPC_DEFAULT_SESSION_TIMEOUT     300
  35 #define RPC_DEFAULT_SESSION_ID  "00000000000000000000000000000000"
  36 #define RPC_SESSION_DIRECTORY   "/var/run/rpcd/sessions"
  37 #define RPC_SESSION_ACL_DIR             "/usr/share/rpcd/acl.d"
  38
  39 struct rpc_session {
  40         struct avl_node avl;
  41         char id[RPC_SID_LEN + 1];
  42
  43         struct uloop_timeout t;
  44         struct avl_tree data;
  45         struct avl_tree acls;
  46
  47         int timeout;
  48 };
  49
  50 struct rpc_session_data {
  51         struct avl_node avl;
  52         struct blob_attr attr[];
  53 };
  54
  55 struct rpc_session_acl_scope {
  56         struct avl_node avl;
  57         struct avl_tree acls;
  58 };
  59
  60 struct rpc_session_acl {
  61         struct avl_node avl;
  62         const char *object;
  63         const char *function;
  64         int sort_len;
  65 };
  66
  67 int rpc_session_api_init(struct ubus_context *ctx);
  68
  69 bool rpc_session_access(const char *sid, const char *scope,
  70                         const char *object, const char *function);
  71
  72 struct rpc_session_cb {
  73         struct list_head list;
  74         void (*cb)(struct rpc_session *, void *);
  75         void *priv;
  76 };
  77
  78 void rpc_session_create_cb(struct rpc_session_cb *cb);
  79 void rpc_session_destroy_cb(struct rpc_session_cb *cb);
  80
  81 void rpc_session_freeze(void);
  82 void rpc_session_thaw(void);
  83
  84 #endif