portmap/portmap.c

   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
  18 #include <stdio.h>
  19 #include <rpc/rpc.h>
  20 #include <rpc/xdr.h>
  21 #include "libnfs.h"
  22 #include "libnfs-raw.h"
  23 #include "libnfs-private.h"
  24 #include "libnfs-raw-portmap.h"
  25
  26
  27 int rpc_pmap_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data)
  28 {
  29         struct rpc_pdu *pdu;
  30
  31         pdu = rpc_allocate_pdu(rpc, PMAP_PROGRAM, PMAP_V2, PMAP_NULL, cb, private_data, (xdrproc_t)xdr_void, 0);
  32         if (pdu == NULL) {
  33                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for portmap/null call");
  34                 return -1;
  35         }
  36
  37         if (rpc_queue_pdu(rpc, pdu) != 0) {
  38                 rpc_set_error(rpc, "Out of memory. Failed to queue pdu for portmap/null call");
  39                 rpc_free_pdu(rpc, pdu);
  40                 return -1;
  41         }
  42
  43         return 0;
  44 }
  45
  46 int rpc_pmap_getport_async(struct rpc_context *rpc, int program, int version, rpc_cb cb, void *private_data)
  47 {
  48         struct rpc_pdu *pdu;
  49         struct pmap_mapping m;
  50
  51         pdu = rpc_allocate_pdu(rpc, PMAP_PROGRAM, PMAP_V2, PMAP_GETPORT, cb, private_data, (xdrproc_t)xdr_int, sizeof(uint32_t));
  52         if (pdu == NULL) {
  53                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for portmap/getport call");
  54                 return -1;
  55         }
  56
  57         m.prog = program;
  58         m.vers = version;
  59         m.prot = IPPROTO_TCP;
  60         m.port = 0;
  61         if (xdr_pmap_mapping(&pdu->xdr, &m) == 0) {
  62                 rpc_set_error(rpc, "XDR error: Failed to encode data for portmap/getport call");
  63                 rpc_free_pdu(rpc, pdu);
  64                 return -1;
  65         }
  66
  67         if (rpc_queue_pdu(rpc, pdu) != 0) {
  68                 rpc_set_error(rpc, "Failed to queue portmap/getport pdu");
  69                 rpc_free_pdu(rpc, pdu);
  70                 return -1;
  71         }
  72
  73         return 0;
  74 }
  75
  76 int rpc_pmap_callit_async(struct rpc_context *rpc, int program, int version, int procedure, const char *data, int datalen, rpc_cb cb, void *private_data)
  77 {
  78         struct rpc_pdu *pdu;
  79         struct pmap_call_args ca;
  80
  81         pdu = rpc_allocate_pdu(rpc, PMAP_PROGRAM, PMAP_V2, PMAP_CALLIT, cb, private_data, (xdrproc_t)xdr_pmap_call_result, sizeof(pmap_call_result));
  82         if (pdu == NULL) {
  83                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for portmap/callit call");
  84                 return -1;
  85         }
  86
  87         ca.prog = program;
  88         ca.vers = version;
  89         ca.proc = procedure;
  90         ca.args.args_len = datalen;
  91         ca.args.args_val = data;
  92
  93         if (xdr_pmap_call_args(&pdu->xdr, &ca) == 0) {
  94                 rpc_set_error(rpc, "XDR error: Failed to encode data for portmap/callit call");
  95                 rpc_free_pdu(rpc, pdu);
  96                 return -1;
  97         }
  98
  99         if (rpc_queue_pdu(rpc, pdu) != 0) {
 100                 rpc_set_error(rpc, "Failed to queue portmap/callit pdu: %s", rpc_get_error(rpc));
 101                 return -1;
 102         }
 103
 104         return 0;
 105 }