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 "libnfs-zdr.h"
  25 #include "libnfs.h"
  26 #include "libnfs-raw.h"
  27 #include "libnfs-private.h"
  28 #include "libnfs-raw-nlm.h"
  29
  30 int rpc_nlm4_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data)
  31 {
  32         struct rpc_pdu *pdu;
  33
  34         pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_NULL, cb, private_data, (zdrproc_t)zdr_void, 0);
  35         if (pdu == NULL) {
  36                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/null call");
  37                 return -1;
  38         }
  39
  40         if (rpc_queue_pdu(rpc, pdu) != 0) {
  41                 rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/null call");
  42                 rpc_free_pdu(rpc, pdu);
  43                 return -1;
  44         }
  45
  46         return 0;
  47 }
  48
  49 int rpc_nlm4_test_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_TESTargs *args, void *private_data)
  50 {
  51         struct rpc_pdu *pdu;
  52
  53         pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_TEST, cb, private_data, (zdrproc_t)zdr_NLM4_TESTres, sizeof(NLM4_TESTres));
  54         if (pdu == NULL) {
  55                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/test call");
  56                 return -1;
  57         }
  58
  59         if (zdr_NLM4_TESTargs(&pdu->zdr, args) == 0) {
  60                 rpc_set_error(rpc, "ZDR error: Failed to encode NLM4_TESTargs");
  61                 rpc_free_pdu(rpc, pdu);
  62                 return -2;
  63         }
  64
  65         if (rpc_queue_pdu(rpc, pdu) != 0) {
  66                 rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/test call");
  67                 rpc_free_pdu(rpc, pdu);
  68                 return -1;
  69         }
  70
  71         return 0;
  72 }
  73
  74 int rpc_nlm4_lock_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_LOCKargs *args, void *private_data)
  75 {
  76         struct rpc_pdu *pdu;
  77
  78         pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_LOCK, cb, private_data, (zdrproc_t)zdr_NLM4_LOCKres, sizeof(NLM4_LOCKres));
  79         if (pdu == NULL) {
  80                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/lock call");
  81                 return -1;
  82         }
  83
  84         if (zdr_NLM4_LOCKargs(&pdu->zdr, args) == 0) {
  85                 rpc_set_error(rpc, "ZDR error: Failed to encode NLM4_LOCKargs");
  86                 rpc_free_pdu(rpc, pdu);
  87                 return -2;
  88         }
  89
  90         if (rpc_queue_pdu(rpc, pdu) != 0) {
  91                 rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/lock call");
  92                 rpc_free_pdu(rpc, pdu);
  93                 return -1;
  94         }
  95
  96         return 0;
  97 }
  98
  99 int rpc_nlm4_cancel_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_CANCargs *args, void *private_data)
 100 {
 101         struct rpc_pdu *pdu;
 102
 103         pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_CANCEL, cb, private_data, (zdrproc_t)zdr_NLM4_CANCres, sizeof(NLM4_CANCres));
 104         if (pdu == NULL) {
 105                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/cancel call");
 106                 return -1;
 107         }
 108
 109         if (zdr_NLM4_CANCargs(&pdu->zdr, args) == 0) {
 110                 rpc_set_error(rpc, "ZDR error: Failed to encode NLM4_CANCargs");
 111                 rpc_free_pdu(rpc, pdu);
 112                 return -2;
 113         }
 114
 115         if (rpc_queue_pdu(rpc, pdu) != 0) {
 116                 rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/cancel call");
 117                 rpc_free_pdu(rpc, pdu);
 118                 return -1;
 119         }
 120
 121         return 0;
 122 }
 123
 124 int rpc_nlm4_unlock_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_UNLOCKargs *args, void *private_data)
 125 {
 126         struct rpc_pdu *pdu;
 127
 128         pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_UNLOCK, cb, private_data, (zdrproc_t)zdr_NLM4_UNLOCKres, sizeof(NLM4_UNLOCKres));
 129         if (pdu == NULL) {
 130                 rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/unlock call");
 131                 return -1;
 132         }
 133
 134         if (zdr_NLM4_UNLOCKargs(&pdu->zdr, args) == 0) {
 135                 rpc_set_error(rpc, "ZDR error: Failed to encode NLM4_UNLOCKargs");
 136                 rpc_free_pdu(rpc, pdu);
 137                 return -2;
 138         }
 139
 140         if (rpc_queue_pdu(rpc, pdu) != 0) {
 141                 rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/unlock call");
 142                 rpc_free_pdu(rpc, pdu);
 143                 return -1;
 144         }
 145
 146         return 0;
 147 }
 148
 149 char *nlmstat4_to_str(int st)
 150 {
 151         enum nlmstat4 stat = st;
 152
 153         char *str = "unknown nlm stat";
 154         switch (stat) {
 155         case NLM4_GRANTED: str="NLM4_GRANTED";break;
 156         case NLM4_DENIED: str="NLM4_DENIED";break;
 157         case NLM4_DENIED_NOLOCKS: str="NLM4_DENIED_NOLOCKS";break;
 158         case NLM4_BLOCKED: str="NLM4_BLOCKED";break;
 159         case NLM4_DENIED_GRACE_PERIOD: str="NLM4_DENIED_GRACE_PERIOD";break;
 160         case NLM4_DEADLCK: str="NLM4_DEADLCK";break;
 161         case NLM4_ROFS: str="NLM4_ROFS";break;
 162         case NLM4_STALE_FH: str="NLM4_STALE_FH";break;
 163         case NLM4_FBIG: str="NLM4_FBIG";break;
 164         case NLM4_FAILED: str="NLM4_FAILED";break;
 165         }
 166         return str;
 167 }
 168
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 171