update changelog
[deb_libnfs.git] / lib / init.c
... / ...
CommitLineData
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#ifdef HAVE_CONFIG_H
15#include "config.h"
16#endif
17
18#ifdef AROS
19#include "aros_compat.h"
20#endif
21
22#ifdef WIN32
23#include "win32_compat.h"
24#endif
25
26#define _GNU_SOURCE
27
28#ifdef HAVE_UNISTD_H
29#include <unistd.h>
30#endif
31
32#ifdef HAVE_STRINGS_H
33#include <strings.h>
34#endif
35
36#include <stdio.h>
37#include <stdarg.h>
38#include <string.h>
39#include <stdlib.h>
40#include <assert.h>
41#include <time.h>
42#include "slist.h"
43#include "libnfs-zdr.h"
44#include "libnfs.h"
45#include "libnfs-raw.h"
46#include "libnfs-private.h"
47
48struct rpc_context *rpc_init_context(void)
49{
50 struct rpc_context *rpc;
51 static uint32_t salt = 0;
52
53 rpc = malloc(sizeof(struct rpc_context));
54 if (rpc == NULL) {
55 return NULL;
56 }
57 memset(rpc, 0, sizeof(struct rpc_context));
58
59 rpc->magic = RPC_CONTEXT_MAGIC;
60
61 /* Allow 1M of data (for writes) and some */
62 rpc->encodebuflen = 1024 * 1024 + 4096;
63 rpc->encodebuf = malloc(rpc->encodebuflen);
64 if (rpc->encodebuf == NULL) {
65 free(rpc);
66 return NULL;
67 }
68
69 rpc->auth = authunix_create_default();
70 if (rpc->auth == NULL) {
71 free(rpc->encodebuf);
72 free(rpc);
73 return NULL;
74 }
75 rpc->xid = salt + time(NULL) + getpid() << 16;
76 salt += 0x01000000;
77 rpc->fd = -1;
78 rpc->tcp_syncnt = RPC_PARAM_UNDEFINED;
79#if defined(WIN32) || defined(ANDROID)
80 rpc->uid = 65534;
81 rpc->gid = 65534;
82#else
83 rpc->uid = getuid();
84 rpc->gid = getgid();
85#endif
86
87 return rpc;
88}
89
90
91struct rpc_context *rpc_init_udp_context(void)
92{
93 struct rpc_context *rpc;
94
95 rpc = rpc_init_context();
96 if (rpc != NULL) {
97 rpc->is_udp = 1;
98 }
99
100 return rpc;
101}
102
103void rpc_set_auth(struct rpc_context *rpc, struct AUTH *auth)
104{
105 assert(rpc->magic == RPC_CONTEXT_MAGIC);
106
107 if (rpc->auth != NULL) {
108 auth_destroy(rpc->auth);
109 }
110 rpc->auth = auth;
111}
112
113static void rpc_set_uid_gid(struct rpc_context *rpc, int uid, int gid) {
114 if (uid != rpc->uid || gid != rpc->gid) {
115 struct AUTH *auth = libnfs_authunix_create("libnfs", uid, gid, 0, NULL);
116 if (auth != NULL) {
117 rpc_set_auth(rpc, auth);
118 rpc->uid = uid;
119 rpc->gid = gid;
120 }
121 }
122}
123
124void rpc_set_uid(struct rpc_context *rpc, int uid) {
125 rpc_set_uid_gid(rpc, uid, rpc->gid);
126}
127
128void rpc_set_gid(struct rpc_context *rpc, int gid) {
129 rpc_set_uid_gid(rpc, rpc->uid, gid);
130}
131
132void rpc_set_error(struct rpc_context *rpc, char *error_string, ...)
133{
134 va_list ap;
135 char *old_error_string = rpc->error_string;
136
137 assert(rpc->magic == RPC_CONTEXT_MAGIC);
138
139 va_start(ap, error_string);
140 rpc->error_string = malloc(1024);
141 vsnprintf(rpc->error_string, 1024, error_string, ap);
142 va_end(ap);
143
144 if (old_error_string != NULL) {
145 free(old_error_string);
146 }
147}
148
149char *rpc_get_error(struct rpc_context *rpc)
150{
151 assert(rpc->magic == RPC_CONTEXT_MAGIC);
152
153 return rpc->error_string;
154}
155
156void rpc_error_all_pdus(struct rpc_context *rpc, char *error)
157{
158 struct rpc_pdu *pdu;
159
160 assert(rpc->magic == RPC_CONTEXT_MAGIC);
161
162 while((pdu = rpc->outqueue) != NULL) {
163 pdu->cb(rpc, RPC_STATUS_ERROR, error, pdu->private_data);
164 SLIST_REMOVE(&rpc->outqueue, pdu);
165 rpc_free_pdu(rpc, pdu);
166 }
167 while((pdu = rpc->waitpdu) != NULL) {
168 pdu->cb(rpc, RPC_STATUS_ERROR, error, pdu->private_data);
169 SLIST_REMOVE(&rpc->waitpdu, pdu);
170 rpc_free_pdu(rpc, pdu);
171 }
172}
173
174static void rpc_free_fragment(struct rpc_fragment *fragment)
175{
176 if (fragment->data != NULL) {
177 free(fragment->data);
178 }
179 free(fragment);
180}
181
182void rpc_free_all_fragments(struct rpc_context *rpc)
183{
184 assert(rpc->magic == RPC_CONTEXT_MAGIC);
185
186 while (rpc->fragments != NULL) {
187 struct rpc_fragment *fragment = rpc->fragments;
188
189 SLIST_REMOVE(&rpc->fragments, fragment);
190 rpc_free_fragment(fragment);
191 }
192}
193
194int rpc_add_fragment(struct rpc_context *rpc, char *data, uint64_t size)
195{
196 struct rpc_fragment *fragment;
197
198 assert(rpc->magic == RPC_CONTEXT_MAGIC);
199
200 fragment = malloc(sizeof(struct rpc_fragment));
201 if (fragment == NULL) {
202 return -1;
203 }
204
205 fragment->size = size;
206 fragment->data = malloc(fragment->size);
207 if(fragment->data == NULL) {
208 free(fragment);
209 return -1;
210 }
211
212 memcpy(fragment->data, data, fragment->size);
213 SLIST_ADD_END(&rpc->fragments, fragment);
214 return 0;
215}
216
217void rpc_destroy_context(struct rpc_context *rpc)
218{
219 struct rpc_pdu *pdu;
220
221 assert(rpc->magic == RPC_CONTEXT_MAGIC);
222
223 while((pdu = rpc->outqueue) != NULL) {
224 pdu->cb(rpc, RPC_STATUS_CANCEL, NULL, pdu->private_data);
225 SLIST_REMOVE(&rpc->outqueue, pdu);
226 rpc_free_pdu(rpc, pdu);
227 }
228 while((pdu = rpc->waitpdu) != NULL) {
229 pdu->cb(rpc, RPC_STATUS_CANCEL, NULL, pdu->private_data);
230 SLIST_REMOVE(&rpc->waitpdu, pdu);
231 rpc_free_pdu(rpc, pdu);
232 }
233
234 rpc_free_all_fragments(rpc);
235
236 auth_destroy(rpc->auth);
237 rpc->auth =NULL;
238
239 if (rpc->fd != -1) {
240 close(rpc->fd);
241 }
242
243 if (rpc->encodebuf != NULL) {
244 free(rpc->encodebuf);
245 rpc->encodebuf = NULL;
246 }
247
248 if (rpc->error_string != NULL) {
249 free(rpc->error_string);
250 rpc->error_string = NULL;
251 }
252
253 if (rpc->udp_dest != NULL) {
254 free(rpc->udp_dest);
255 rpc->udp_dest = NULL;
256 }
257
258 rpc->magic = 0;
259 free(rpc);
260}
261
262