1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/*
Copyright (c) 2016 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#include "glusterd.h"
#include "glusterd-utils.h"
#include "glusterd-tierd-svc-helper.h"
#include "glusterd-messages.h"
#include "syscall.h"
#include "glusterd-volgen.h"
void
glusterd_svc_build_tierd_rundir(glusterd_volinfo_t *volinfo, char *path,
int path_len)
{
char workdir[PATH_MAX] = {
0,
};
glusterd_conf_t *priv = THIS->private;
GLUSTERD_GET_TIER_DIR(workdir, volinfo, priv);
snprintf(path, path_len, "%s/run", workdir);
}
void
glusterd_svc_build_tierd_socket_filepath(glusterd_volinfo_t *volinfo,
char *path, int path_len)
{
char sockfilepath[PATH_MAX] = {
0,
};
char rundir[PATH_MAX] = {
0,
};
int32_t len = 0;
glusterd_svc_build_tierd_rundir(volinfo, rundir, sizeof(rundir));
len = snprintf(sockfilepath, sizeof(sockfilepath), "%s/run-%s", rundir,
uuid_utoa(MY_UUID));
if ((len < 0) || (len >= sizeof(sockfilepath))) {
sockfilepath[0] = 0;
}
glusterd_set_socket_filepath(sockfilepath, path, path_len);
}
void
glusterd_svc_build_tierd_pidfile(glusterd_volinfo_t *volinfo, char *path,
int path_len)
{
char rundir[PATH_MAX] = {
0,
};
glusterd_svc_build_tierd_rundir(volinfo, rundir, sizeof(rundir));
snprintf(path, path_len, "%s/%s-tierd.pid", rundir, volinfo->volname);
}
void
glusterd_svc_build_tierd_volfile_path(glusterd_volinfo_t *volinfo, char *path,
int path_len)
{
char workdir[PATH_MAX] = {
0,
};
glusterd_conf_t *priv = THIS->private;
GLUSTERD_GET_VOLUME_DIR(workdir, volinfo, priv);
snprintf(path, path_len, "%s/%s-tierd.vol", workdir, volinfo->volname);
}
void
glusterd_svc_build_tierd_logdir(char *logdir, char *volname, size_t len)
{
snprintf(logdir, len, "%s/tier/%s", DEFAULT_LOG_FILE_DIRECTORY, volname);
}
void
glusterd_svc_build_tierd_logfile(char *logfile, char *logdir, size_t len)
{
snprintf(logfile, len, "%s/tierd.log", logdir);
}
int
glusterd_svc_check_tier_volfile_identical(char *svc_name,
glusterd_volinfo_t *volinfo,
gf_boolean_t *identical)
{
char orgvol[PATH_MAX] = {
0,
};
char *tmpvol = NULL;
xlator_t *this = NULL;
int ret = -1;
int need_unlink = 0;
int tmp_fd = -1;
this = THIS;
GF_VALIDATE_OR_GOTO(THIS->name, this, out);
GF_VALIDATE_OR_GOTO(this->name, identical, out);
glusterd_svc_build_tierd_volfile_path(volinfo, orgvol, sizeof(orgvol));
ret = gf_asprintf(&tmpvol, "/tmp/g%s-XXXXXX", svc_name);
if (ret < 0) {
goto out;
}
/* coverity[secure_temp] mkstemp uses 0600 as the mode and is safe */
tmp_fd = mkstemp(tmpvol);
if (tmp_fd < 0) {
gf_msg(this->name, GF_LOG_WARNING, errno, GD_MSG_FILE_OP_FAILED,
"Unable to create temp file"
" %s:(%s)",
tmpvol, strerror(errno));
ret = -1;
goto out;
}
need_unlink = 1;
ret = build_rebalance_volfile(volinfo, tmpvol, NULL);
if (ret)
goto out;
ret = glusterd_check_files_identical(orgvol, tmpvol, identical);
if (ret)
goto out;
out:
if (need_unlink)
sys_unlink(tmpvol);
if (tmpvol != NULL)
GF_FREE(tmpvol);
if (tmp_fd >= 0)
sys_close(tmp_fd);
return ret;
}
int
glusterd_svc_check_tier_topology_identical(char *svc_name,
glusterd_volinfo_t *volinfo,
gf_boolean_t *identical)
{
char orgvol[PATH_MAX] = {
0,
};
char *tmpvol = NULL;
glusterd_conf_t *conf = NULL;
xlator_t *this = THIS;
int ret = -1;
int tmpclean = 0;
int tmpfd = -1;
if ((!identical) || (!this) || (!this->private))
goto out;
conf = this->private;
GF_VALIDATE_OR_GOTO(this->name, conf, out);
glusterd_svc_build_tierd_volfile_path(volinfo, orgvol, sizeof(orgvol));
ret = gf_asprintf(&tmpvol, "/tmp/g%s-XXXXXX", svc_name);
if (ret < 0) {
goto out;
}
/* coverity[secure_temp] mkstemp uses 0600 as the mode and is safe */
tmpfd = mkstemp(tmpvol);
if (tmpfd < 0) {
gf_msg(this->name, GF_LOG_WARNING, errno, GD_MSG_FILE_OP_FAILED,
"Unable to create temp file"
" %s:(%s)",
tmpvol, strerror(errno));
ret = -1;
goto out;
}
tmpclean = 1; /* SET the flag to unlink() tmpfile */
ret = build_rebalance_volfile(volinfo, tmpvol, NULL);
if (ret)
goto out;
/* Compare the topology of volfiles */
ret = glusterd_check_topology_identical(orgvol, tmpvol, identical);
out:
if (tmpfd >= 0)
sys_close(tmpfd);
if (tmpclean)
sys_unlink(tmpvol);
if (tmpvol != NULL)
GF_FREE(tmpvol);
return ret;
}
|
