nlm/nlm.c

   1 /*
   2    Copyright (C) 2012 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 #ifdef WIN32
  19 #include "win32_compat.h"
  20 #endif/*WIN32*/
  21
  22 #include <stdio.h>
  23 #include <errno.h>
  24 #include <rpc/rpc.h>
  25 #include <rpc/xdr.h>
  26 #include "libnfs.h"
  27 #include "libnfs-raw.h"
  28 #include "libnfs-private.h"
  29 #include "libnfs-raw-nlm.h"
  30
  31 int rpc_nlm4_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, NLM_PROGRAM, NLM_V4, NLM4_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 nlm/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 nlm/null call");
  43                 rpc_free_pdu(rpc, pdu);
  44                 return -1;
  45         }
  46
  47         return 0;
  48 }
  49
  50 int rpc_nlm4_test_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_TESTargs *args, void *private_data)
  51 {
  52         struct rpc_pdu *pdu;
  53
  54         pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_TEST, cb, private_data, (xdrproc_t)xdr_NLM4_TESTres, sizeof(NLM4_TESTres));
  55         if (pdu == NULL) {
  56                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/test call");
  57                 return -1;
  58         }
  59
  60         if (xdr_NLM4_TESTargs(&pdu->xdr, args) == 0) {
  61                 rpc_set_error(rpc, "XDR error: Failed to encode NLM4_TESTargs");
  62                 rpc_free_pdu(rpc, pdu);
  63                 return -2;
  64         }
  65
  66         if (rpc_queue_pdu(rpc, pdu) != 0) {
  67                 rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/test call");
  68                 rpc_free_pdu(rpc, pdu);
  69                 return -1;
  70         }
  71
  72         return 0;
  73 }
  74
  75 int rpc_nlm4_lock_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_LOCKargs *args, void *private_data)
  76 {
  77         struct rpc_pdu *pdu;
  78
  79         pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_LOCK, cb, private_data, (xdrproc_t)xdr_NLM4_LOCKres, sizeof(NLM4_LOCKres));
  80         if (pdu == NULL) {
  81                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/lock call");
  82                 return -1;
  83         }
  84
  85         if (xdr_NLM4_LOCKargs(&pdu->xdr, args) == 0) {
  86                 rpc_set_error(rpc, "XDR error: Failed to encode NLM4_LOCKargs");
  87                 rpc_free_pdu(rpc, pdu);
  88                 return -2;
  89         }
  90
  91         if (rpc_queue_pdu(rpc, pdu) != 0) {
  92                 rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/lock call");
  93                 rpc_free_pdu(rpc, pdu);
  94                 return -1;
  95         }
  96
  97         return 0;
  98 }
  99
 100 int rpc_nlm4_cancel_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_CANCargs *args, void *private_data)
 101 {
 102         struct rpc_pdu *pdu;
 103
 104         pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_CANCEL, cb, private_data, (xdrproc_t)xdr_NLM4_CANCres, sizeof(NLM4_CANCres));
 105         if (pdu == NULL) {
 106                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/cancel call");
 107                 return -1;
 108         }
 109
 110         if (xdr_NLM4_CANCargs(&pdu->xdr, args) == 0) {
 111                 rpc_set_error(rpc, "XDR error: Failed to encode NLM4_CANCargs");
 112                 rpc_free_pdu(rpc, pdu);
 113                 return -2;
 114         }
 115
 116         if (rpc_queue_pdu(rpc, pdu) != 0) {
 117                 rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/cancel call");
 118                 rpc_free_pdu(rpc, pdu);
 119                 return -1;
 120         }
 121
 122         return 0;
 123 }
 124
 125 int rpc_nlm4_unlock_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_UNLOCKargs *args, void *private_data)
 126 {
 127         struct rpc_pdu *pdu;
 128
 129         pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_UNLOCK, cb, private_data, (xdrproc_t)xdr_NLM4_UNLOCKres, sizeof(NLM4_UNLOCKres));
 130         if (pdu == NULL) {
 131                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/unlock call");
 132                 return -1;
 133         }
 134
 135         if (xdr_NLM4_UNLOCKargs(&pdu->xdr, args) == 0) {
 136                 rpc_set_error(rpc, "XDR error: Failed to encode NLM4_UNLOCKargs");
 137                 rpc_free_pdu(rpc, pdu);
 138                 return -2;
 139         }
 140
 141         if (rpc_queue_pdu(rpc, pdu) != 0) {
 142                 rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/unlock call");
 143                 rpc_free_pdu(rpc, pdu);
 144                 return -1;
 145         }
 146
 147         return 0;
 148 }
 149
 150 char *nlmstat4_to_str(int st)
 151 {
 152         enum nlmstat4 stat = st;
 153
 154         char *str = "unknown nlm stat";
 155         switch (stat) {
 156         case NLM4_GRANTED: str="NLM4_GRANTED";break;
 157         case NLM4_DENIED: str="NLM4_DENIED";break;
 158         case NLM4_DENIED_NOLOCKS: str="NLM4_DENIED_NOLOCKS";break;
 159         case NLM4_BLOCKED: str="NLM4_BLOCKED";break;
 160         case NLM4_DENIED_GRACE_PERIOD: str="NLM4_DENIED_GRACE_PERIOD";break;
 161         case NLM4_DEADLCK: str="NLM4_DEADLCK";break;
 162         case NLM4_ROFS: str="NLM4_ROFS";break;
 163         case NLM4_STALE_FH: str="NLM4_STALE_FH";break;
 164         case NLM4_FBIG: str="NLM4_FBIG";break;
 165         case NLM4_FAILED: str="NLM4_FAILED";break;
 166         }
 167         return str;
 168 }
 169
 170
 171
 172