| 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 | #define _GNU_SOURCE |
| 19 | #include <stdio.h> |
| 20 | #include <stdarg.h> |
| 21 | #include <unistd.h> |
| 22 | #include <string.h> |
| 23 | #include <strings.h> |
| 24 | #include <stdlib.h> |
| 25 | #include <rpc/rpc.h> |
| 26 | #include <rpc/xdr.h> |
| 27 | #include "slist.h" |
| 28 | #include "libnfs.h" |
| 29 | #include "libnfs-raw.h" |
| 30 | #include "libnfs-private.h" |
| 31 | |
| 32 | struct rpc_context *rpc_init_context(void) |
| 33 | { |
| 34 | struct rpc_context *rpc; |
| 35 | |
| 36 | rpc = malloc(sizeof(struct rpc_context)); |
| 37 | if (rpc == NULL) { |
| 38 | return NULL; |
| 39 | } |
| 40 | bzero(rpc, sizeof(struct rpc_context)); |
| 41 | |
| 42 | rpc->encodebuflen = 65536; |
| 43 | rpc->encodebuf = malloc(rpc->encodebuflen); |
| 44 | if (rpc->encodebuf == NULL) { |
| 45 | free(rpc); |
| 46 | return NULL; |
| 47 | } |
| 48 | |
| 49 | rpc->auth = authunix_create_default(); |
| 50 | if (rpc->auth == NULL) { |
| 51 | free(rpc->encodebuf); |
| 52 | free(rpc); |
| 53 | return NULL; |
| 54 | } |
| 55 | rpc->xid = 1; |
| 56 | rpc->fd = -1; |
| 57 | |
| 58 | return rpc; |
| 59 | } |
| 60 | |
| 61 | |
| 62 | struct rpc_context *rpc_init_udp_context(void) |
| 63 | { |
| 64 | struct rpc_context *rpc; |
| 65 | |
| 66 | rpc = rpc_init_context(); |
| 67 | if (rpc != NULL) { |
| 68 | rpc->is_udp = 1; |
| 69 | } |
| 70 | |
| 71 | return rpc; |
| 72 | } |
| 73 | |
| 74 | void rpc_set_auth(struct rpc_context *rpc, struct AUTH *auth) |
| 75 | { |
| 76 | if (rpc->auth != NULL) { |
| 77 | auth_destroy(rpc->auth); |
| 78 | } |
| 79 | rpc->auth = auth; |
| 80 | } |
| 81 | |
| 82 | |
| 83 | void rpc_set_error(struct rpc_context *rpc, char *error_string, ...) |
| 84 | { |
| 85 | va_list ap; |
| 86 | char *str; |
| 87 | |
| 88 | if (rpc->error_string != NULL) { |
| 89 | free(rpc->error_string); |
| 90 | } |
| 91 | va_start(ap, error_string); |
| 92 | vasprintf(&str, error_string, ap); |
| 93 | rpc->error_string = str; |
| 94 | va_end(ap); |
| 95 | } |
| 96 | |
| 97 | char *rpc_get_error(struct rpc_context *rpc) |
| 98 | { |
| 99 | return rpc->error_string; |
| 100 | } |
| 101 | |
| 102 | void rpc_error_all_pdus(struct rpc_context *rpc, char *error) |
| 103 | { |
| 104 | struct rpc_pdu *pdu; |
| 105 | |
| 106 | while((pdu = rpc->outqueue) != NULL) { |
| 107 | pdu->cb(rpc, RPC_STATUS_ERROR, error, pdu->private_data); |
| 108 | SLIST_REMOVE(&rpc->outqueue, pdu); |
| 109 | rpc_free_pdu(rpc, pdu); |
| 110 | } |
| 111 | while((pdu = rpc->waitpdu) != NULL) { |
| 112 | pdu->cb(rpc, RPC_STATUS_ERROR, error, pdu->private_data); |
| 113 | SLIST_REMOVE(&rpc->waitpdu, pdu); |
| 114 | rpc_free_pdu(rpc, pdu); |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | |
| 119 | void rpc_destroy_context(struct rpc_context *rpc) |
| 120 | { |
| 121 | struct rpc_pdu *pdu; |
| 122 | |
| 123 | while((pdu = rpc->outqueue) != NULL) { |
| 124 | pdu->cb(rpc, RPC_STATUS_CANCEL, NULL, pdu->private_data); |
| 125 | SLIST_REMOVE(&rpc->outqueue, pdu); |
| 126 | rpc_free_pdu(rpc, pdu); |
| 127 | } |
| 128 | while((pdu = rpc->waitpdu) != NULL) { |
| 129 | pdu->cb(rpc, RPC_STATUS_CANCEL, NULL, pdu->private_data); |
| 130 | SLIST_REMOVE(&rpc->waitpdu, pdu); |
| 131 | rpc_free_pdu(rpc, pdu); |
| 132 | } |
| 133 | |
| 134 | auth_destroy(rpc->auth); |
| 135 | rpc->auth =NULL; |
| 136 | |
| 137 | if (rpc->fd != -1) { |
| 138 | close(rpc->fd); |
| 139 | } |
| 140 | |
| 141 | if (rpc->encodebuf != NULL) { |
| 142 | free(rpc->encodebuf); |
| 143 | rpc->encodebuf = NULL; |
| 144 | } |
| 145 | |
| 146 | if (rpc->error_string != NULL) { |
| 147 | free(rpc->error_string); |
| 148 | rpc->error_string = NULL; |
| 149 | } |
| 150 | |
| 151 | if (rpc->udp_dest != NULL) { |
| 152 | free(rpc->udp_dest); |
| 153 | rpc->udp_dest = NULL; |
| 154 | } |
| 155 | |
| 156 | free(rpc); |
| 157 | } |
| 158 | |
| 159 | |