include/libnfs-private.h

   1 /*
   2    Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as published by
   6    the Free Software Foundation; either version 2.1 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program; if not, see <http://www.gnu.org/licenses/>.
  16 */
  17 #include <rpc/auth.h>
  18
  19 struct rpc_context {
  20         int fd;
  21         int is_connected;
  22
  23         char *error_string;
  24
  25         rpc_cb connect_cb;
  26         void *connect_data;
  27
  28         AUTH *auth;
  29         unsigned long xid;
  30
  31        /* buffer used for encoding RPC PDU */
  32        char *encodebuf;
  33        int encodebuflen;
  34
  35        struct rpc_pdu *outqueue;
  36        struct rpc_pdu *waitpdu;
  37
  38        int inpos;
  39        int insize;
  40        char *inbuf;
  41
  42        /* special fields for UDP, which can sometimes be BROADCASTed */
  43        int is_udp;
  44        struct sockaddr *udp_dest;
  45        int is_broadcast;
  46 };
  47
  48 struct rpc_pdu {
  49         struct rpc_pdu *next;
  50
  51         unsigned long xid;
  52         XDR xdr;
  53
  54         int written;
  55         struct rpc_data outdata;
  56
  57         rpc_cb cb;
  58         void *private_data;
  59
  60         /* function to decode the xdr reply data and buffer to decode into */
  61         xdrproc_t xdr_decode_fn;
  62         caddr_t xdr_decode_buf;
  63         int xdr_decode_bufsize;
  64 };
  65
  66 struct rpc_pdu *rpc_allocate_pdu(struct rpc_context *rpc, int program, int version, int procedure, rpc_cb cb, void *private_data, xdrproc_t xdr_decode_fn, int xdr_bufsize);
  67 void rpc_free_pdu(struct rpc_context *rpc, struct rpc_pdu *pdu);
  68 int rpc_queue_pdu(struct rpc_context *rpc, struct rpc_pdu *pdu);
  69 int rpc_get_pdu_size(char *buf);
  70 int rpc_process_pdu(struct rpc_context *rpc, char *buf, int size);
  71 void rpc_error_all_pdus(struct rpc_context *rpc, char *error);
  72
  73 void rpc_set_error(struct rpc_context *rpc, char *error_string, ...);
  74 void nfs_set_error(struct nfs_context *nfs, char *error_string, ...);
  75
  76 struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs);
  77
  78 struct rpc_context *rpc_init_udp_context(void);