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 extern char apply_sid[RPC_SID_LEN + 1];
  40
  41 struct rpc_session {
  42         struct avl_node avl;
  43         char id[RPC_SID_LEN + 1];
  44
  45         struct uloop_timeout t;
  46         struct avl_tree data;
  47         struct avl_tree acls;
  48
  49         int timeout;
  50 };
  51
  52 struct rpc_session_data {
  53         struct avl_node avl;
  54         struct blob_attr attr[];
  55 };
  56
  57 struct rpc_session_acl_scope {
  58         struct avl_node avl;
  59         struct avl_tree acls;
  60 };
  61
  62 struct rpc_session_acl {
  63         struct avl_node avl;
  64         const char *object;
  65         const char *function;
  66         int sort_len;
  67 };
  68
  69 int rpc_session_api_init(struct ubus_context *ctx);
  70
  71 bool rpc_session_access(const char *sid, const char *scope,
  72                         const char *object, const char *function);
  73
  74 struct rpc_session_cb {
  75         struct list_head list;
  76         void (*cb)(struct rpc_session *, void *);
  77         void *priv;
  78 };
  79
  80 void rpc_session_create_cb(struct rpc_session_cb *cb);
  81 void rpc_session_destroy_cb(struct rpc_session_cb *cb);
  82
  83 void rpc_session_freeze(void);
  84 void rpc_session_thaw(void);
  85
  86 #endif