lib/init.c

   1 /*
   2    Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
   3
   4
   5
   6    This program is distributed in the hope that it will be useful,
   7    but WITHOUT ANY WARRANTY; without even the implied warranty of
   8    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9    GNU Lesser General Public License for more details.
  10
  11    You should have received a copy of the GNU Lesser General Public License
  12    along with this program; if not, see <http://www.gnu.org/licenses/>.
  13 */
  14
  15 #define _GNU_SOURCE
  16
  17 #if defined(WIN32)
  18 #include <winsock2.h>
  19 #else
  20 #include <unistd.h>
  21 #include <strings.h>
  22 #endif
  23
  24 #include <stdio.h>
  25 #include <stdarg.h>
  26 #include <string.h>
  27 #include <stdlib.h>
  28 #include <rpc/rpc.h>
  29 #include <rpc/xdr.h>
  30 #include "slist.h"
  31 #include "libnfs.h"
  32 #include "libnfs-raw.h"
  33 #include "libnfs-private.h"
  34
  35 struct rpc_context *rpc_init_context(void)
  36 {
  37         struct rpc_context *rpc;
  38
  39         rpc = malloc(sizeof(struct rpc_context));
  40         if (rpc == NULL) {
  41                 return NULL;
  42         }
  43         memset(rpc, 0, sizeof(struct rpc_context));
  44
  45         rpc->encodebuflen = 65536;
  46         rpc->encodebuf = malloc(rpc->encodebuflen);
  47         if (rpc->encodebuf == NULL) {
  48                 free(rpc);
  49                 return NULL;
  50         }
  51
  52 #if defined(WIN32)
  53         rpc->auth = authunix_create("LibNFS", 65535, 65535, 0, NULL);
  54 #else
  55         rpc->auth = authunix_create_default();
  56 #endif
  57         if (rpc->auth == NULL) {
  58                 free(rpc->encodebuf);
  59                 free(rpc);
  60                 return NULL;
  61         }
  62         rpc->xid = 1;
  63         rpc->fd = -1;
  64
  65         return rpc;
  66 }
  67
  68
  69 struct rpc_context *rpc_init_udp_context(void)
  70 {
  71         struct rpc_context *rpc;
  72
  73         rpc = rpc_init_context();
  74         if (rpc != NULL) {
  75                 rpc->is_udp = 1;
  76         }
  77
  78         return rpc;
  79 }
  80
  81 void rpc_set_auth(struct rpc_context *rpc, struct AUTH *auth)
  82 {
  83         if (rpc->auth != NULL) {
  84                 auth_destroy(rpc->auth);
  85         }
  86         rpc->auth = (AUTH *)auth;
  87 }
  88
  89
  90 void rpc_set_error(struct rpc_context *rpc, char *error_string, ...)
  91 {
  92         va_list ap;
  93
  94         if (rpc->error_string != NULL) {
  95                 free(rpc->error_string);
  96         }
  97         va_start(ap, error_string);
  98         rpc->error_string = malloc(1024);
  99         vsnprintf(rpc->error_string, 1024, error_string, ap);
 100         va_end(ap);
 101 }
 102
 103 char *rpc_get_error(struct rpc_context *rpc)
 104 {
 105         return rpc->error_string;
 106 }
 107
 108 void rpc_error_all_pdus(struct rpc_context *rpc, char *error)
 109 {
 110         struct rpc_pdu *pdu;
 111
 112         while((pdu = rpc->outqueue) != NULL) {
 113                 pdu->cb(rpc, RPC_STATUS_ERROR, error, pdu->private_data);
 114                 SLIST_REMOVE(&rpc->outqueue, pdu);
 115                 rpc_free_pdu(rpc, pdu);
 116         }
 117         while((pdu = rpc->waitpdu) != NULL) {
 118                 pdu->cb(rpc, RPC_STATUS_ERROR, error, pdu->private_data);
 119                 SLIST_REMOVE(&rpc->waitpdu, pdu);
 120                 rpc_free_pdu(rpc, pdu);
 121         }
 122 }
 123
 124
 125 void rpc_destroy_context(struct rpc_context *rpc)
 126 {
 127         struct rpc_pdu *pdu;
 128
 129         while((pdu = rpc->outqueue) != NULL) {
 130                 pdu->cb(rpc, RPC_STATUS_CANCEL, NULL, pdu->private_data);
 131                 SLIST_REMOVE(&rpc->outqueue, pdu);
 132                 rpc_free_pdu(rpc, pdu);
 133         }
 134         while((pdu = rpc->waitpdu) != NULL) {
 135                 pdu->cb(rpc, RPC_STATUS_CANCEL, NULL, pdu->private_data);
 136                 SLIST_REMOVE(&rpc->waitpdu, pdu);
 137                 rpc_free_pdu(rpc, pdu);
 138         }
 139
 140         auth_destroy(rpc->auth);
 141         rpc->auth =NULL;
 142
 143         if (rpc->fd != -1) {
 144 #if defined(WIN32)
 145                 closesocket(rpc->fd);
 146 #else
 147                 close(rpc->fd);
 148 #endif
 149         }
 150
 151         if (rpc->encodebuf != NULL) {
 152                 free(rpc->encodebuf);
 153                 rpc->encodebuf = NULL;
 154         }
 155
 156         if (rpc->error_string != NULL) {
 157                 free(rpc->error_string);
 158                 rpc->error_string = NULL;
 159         }
 160
 161         if (rpc->udp_dest != NULL) {
 162                 free(rpc->udp_dest);
 163                 rpc->udp_dest = NULL;
 164         }
 165
 166         free(rpc);
 167 }
 168
 169