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 #if defined(WIN32)
  19 #include <winsock2.h>
  20 #endif
  21
  22 #include <stdio.h>
  23 #include <rpc/rpc.h>
  24 #include <rpc/xdr.h>
  25 #include "libnfs.h"
  26 #include "libnfs-raw.h"
  27 #include "libnfs-private.h"
  28 #include "libnfs-raw-portmap.h"
  29
  30
  31 int rpc_pmap_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data)
  32 {
  33         struct rpc_pdu *pdu;
  34
  35         pdu = rpc_allocate_pdu(rpc, PMAP_PROGRAM, PMAP_V2, PMAP_NULL, cb, private_data, (xdrproc_t)xdr_void, 0);
  36         if (pdu == NULL) {
  37                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for portmap/null call");
  38                 return -1;
  39         }
  40
  41         if (rpc_queue_pdu(rpc, pdu) != 0) {
  42                 rpc_set_error(rpc, "Out of memory. Failed to queue pdu for portmap/null call");
  43                 rpc_free_pdu(rpc, pdu);
  44                 return -1;
  45         }
  46
  47         return 0;
  48 }
  49
  50 int rpc_pmap_getport_async(struct rpc_context *rpc, int program, int version, rpc_cb cb, void *private_data)
  51 {
  52         struct rpc_pdu *pdu;
  53         struct pmap_mapping m;
  54
  55         pdu = rpc_allocate_pdu(rpc, PMAP_PROGRAM, PMAP_V2, PMAP_GETPORT, cb, private_data, (xdrproc_t)xdr_int, sizeof(uint32_t));
  56         if (pdu == NULL) {
  57                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for portmap/getport call");
  58                 return -1;
  59         }
  60
  61         m.prog = program;
  62         m.vers = version;
  63         m.prot = IPPROTO_TCP;
  64         m.port = 0;
  65         if (xdr_pmap_mapping(&pdu->xdr, &m) == 0) {
  66                 rpc_set_error(rpc, "XDR error: Failed to encode data for portmap/getport call");
  67                 rpc_free_pdu(rpc, pdu);
  68                 return -1;
  69         }
  70
  71         if (rpc_queue_pdu(rpc, pdu) != 0) {
  72                 rpc_set_error(rpc, "Failed to queue portmap/getport pdu");
  73                 rpc_free_pdu(rpc, pdu);
  74                 return -1;
  75         }
  76
  77         return 0;
  78 }
  79
  80 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)
  81 {
  82         struct rpc_pdu *pdu;
  83         struct pmap_call_args ca;
  84
  85         pdu = rpc_allocate_pdu(rpc, PMAP_PROGRAM, PMAP_V2, PMAP_CALLIT, cb, private_data, (xdrproc_t)xdr_pmap_call_result, sizeof(pmap_call_result));
  86         if (pdu == NULL) {
  87                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for portmap/callit call");
  88                 return -1;
  89         }
  90
  91         ca.prog = program;
  92         ca.vers = version;
  93         ca.proc = procedure;
  94         ca.args.args_len = datalen;
  95         ca.args.args_val = data;
  96
  97         if (xdr_pmap_call_args(&pdu->xdr, &ca) == 0) {
  98                 rpc_set_error(rpc, "XDR error: Failed to encode data for portmap/callit call");
  99                 rpc_free_pdu(rpc, pdu);
 100                 return -1;
 101         }
 102
 103         if (rpc_queue_pdu(rpc, pdu) != 0) {
 104                 rpc_set_error(rpc, "Failed to queue portmap/callit pdu: %s", rpc_get_error(rpc));
 105                 return -1;
 106         }
 107
 108         return 0;
 109 }