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84004dbf RS |
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 <rpc/xdr.h> | |
25 | #include "slist.h" | |
26 | #include "libnfs.h" | |
27 | #include "libnfs-raw.h" | |
28 | #include "libnfs-private.h" | |
29 | ||
30 | struct rpc_context *rpc_init_context(void) | |
31 | { | |
32 | struct rpc_context *rpc; | |
33 | ||
34 | rpc = malloc(sizeof(struct rpc_context)); | |
35 | if (rpc == NULL) { | |
36 | printf("Failed to allocate rpc context\n"); | |
37 | return NULL; | |
38 | } | |
39 | bzero(rpc, sizeof(struct rpc_context)); | |
40 | ||
41 | rpc->encodebuflen = 65536; | |
42 | rpc->encodebuf = malloc(rpc->encodebuflen); | |
43 | if (rpc->encodebuf == NULL) { | |
44 | printf("Failed to allocate a buffer for rpc encoding\n"); | |
45 | free(rpc); | |
46 | return NULL; | |
47 | } | |
48 | ||
49 | rpc->auth = authunix_create_default(); | |
50 | if (rpc->auth == NULL) { | |
51 | printf("failed to create authunix\n"); | |
52 | free(rpc->encodebuf); | |
53 | free(rpc); | |
54 | return NULL; | |
55 | } | |
56 | rpc->xid = 1; | |
57 | rpc->fd = -1; | |
58 | ||
59 | return rpc; | |
60 | } | |
61 | ||
62 | ||
63 | void rpc_set_auth(struct rpc_context *rpc, struct AUTH *auth) | |
64 | { | |
65 | if (rpc->auth != NULL) { | |
66 | auth_destroy(rpc->auth); | |
67 | } | |
68 | rpc->auth = auth; | |
69 | } | |
70 | ||
71 | ||
72 | void rpc_set_error(struct rpc_context *rpc, char *error_string, ...) | |
73 | { | |
74 | va_list ap; | |
75 | char *str; | |
76 | ||
77 | if (rpc->error_string != NULL) { | |
78 | free(rpc->error_string); | |
79 | } | |
80 | va_start(ap, error_string); | |
81 | vasprintf(&str, error_string, ap); | |
82 | rpc->error_string = str; | |
83 | va_end(ap); | |
84 | } | |
85 | ||
86 | char *rpc_get_error(struct rpc_context *rpc) | |
87 | { | |
88 | return rpc->error_string; | |
89 | } | |
90 | ||
91 | void rpc_error_all_pdus(struct rpc_context *rpc, char *error) | |
92 | { | |
93 | struct rpc_pdu *pdu; | |
94 | ||
95 | while((pdu = rpc->outqueue) != NULL) { | |
96 | pdu->cb(rpc, RPC_STATUS_ERROR, error, pdu->private_data); | |
97 | SLIST_REMOVE(&rpc->outqueue, pdu); | |
98 | rpc_free_pdu(rpc, pdu); | |
99 | } | |
100 | while((pdu = rpc->waitpdu) != NULL) { | |
101 | pdu->cb(rpc, RPC_STATUS_ERROR, error, pdu->private_data); | |
102 | SLIST_REMOVE(&rpc->waitpdu, pdu); | |
103 | rpc_free_pdu(rpc, pdu); | |
104 | } | |
105 | } | |
106 | ||
107 | ||
108 | void rpc_destroy_context(struct rpc_context *rpc) | |
109 | { | |
110 | struct rpc_pdu *pdu; | |
111 | ||
112 | while((pdu = rpc->outqueue) != NULL) { | |
113 | pdu->cb(rpc, RPC_STATUS_CANCEL, NULL, 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_CANCEL, NULL, pdu->private_data); | |
119 | SLIST_REMOVE(&rpc->waitpdu, pdu); | |
120 | rpc_free_pdu(rpc, pdu); | |
121 | } | |
122 | ||
123 | auth_destroy(rpc->auth); | |
124 | rpc->auth =NULL; | |
125 | ||
126 | if (rpc->fd != -1) { | |
127 | close(rpc->fd); | |
128 | } | |
129 | ||
130 | if (rpc->encodebuf != NULL) { | |
131 | free(rpc->encodebuf); | |
132 | rpc->encodebuf = NULL; | |
133 | } | |
134 | ||
135 | if (rpc->error_string != NULL) { | |
136 | free(rpc->error_string); | |
137 | rpc->error_string = NULL; | |
138 | } | |
139 | ||
140 | free(rpc); | |
141 | } | |
142 | ||
143 |