blob: 4d9c1f4e1bd10af144a0ae813badaf528c042532 (
plain)
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
207
208
209
210
211
212
213
214
215
|
/******************************************************************************
*******************************************************************************
**
** Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.
**
** This copyrighted material is made available to anyone wishing to use,
** modify, copy, or redistribute it subject to the terms and conditions
** of the GNU General Public License v.2.
**
*******************************************************************************
******************************************************************************/
#include "dlm_internal.h"
#include "rcom.h"
#include "util.h"
#define DLM_ERRNO_EDEADLK 35
#define DLM_ERRNO_EBADR 53
#define DLM_ERRNO_EBADSLT 57
#define DLM_ERRNO_EPROTO 71
#define DLM_ERRNO_EOPNOTSUPP 95
#define DLM_ERRNO_ETIMEDOUT 110
#define DLM_ERRNO_EINPROGRESS 115
static void header_out(struct dlm_header *hd)
{
hd->h_version = cpu_to_le32(hd->h_version);
hd->h_lockspace = cpu_to_le32(hd->h_lockspace);
hd->h_nodeid = cpu_to_le32(hd->h_nodeid);
hd->h_length = cpu_to_le16(hd->h_length);
}
static void header_in(struct dlm_header *hd)
{
hd->h_version = le32_to_cpu(hd->h_version);
hd->h_lockspace = le32_to_cpu(hd->h_lockspace);
hd->h_nodeid = le32_to_cpu(hd->h_nodeid);
hd->h_length = le16_to_cpu(hd->h_length);
}
/* higher errno values are inconsistent across architectures, so select
one set of values for on the wire */
static int to_dlm_errno(int err)
{
switch (err) {
case -EDEADLK:
return -DLM_ERRNO_EDEADLK;
case -EBADR:
return -DLM_ERRNO_EBADR;
case -EBADSLT:
return -DLM_ERRNO_EBADSLT;
case -EPROTO:
return -DLM_ERRNO_EPROTO;
case -EOPNOTSUPP:
return -DLM_ERRNO_EOPNOTSUPP;
case -ETIMEDOUT:
return -DLM_ERRNO_ETIMEDOUT;
case -EINPROGRESS:
return -DLM_ERRNO_EINPROGRESS;
}
return err;
}
static int from_dlm_errno(int err)
{
switch (err) {
case -DLM_ERRNO_EDEADLK:
return -EDEADLK;
case -DLM_ERRNO_EBADR:
return -EBADR;
case -DLM_ERRNO_EBADSLT:
return -EBADSLT;
case -DLM_ERRNO_EPROTO:
return -EPROTO;
case -DLM_ERRNO_EOPNOTSUPP:
return -EOPNOTSUPP;
case -DLM_ERRNO_ETIMEDOUT:
return -ETIMEDOUT;
case -DLM_ERRNO_EINPROGRESS:
return -EINPROGRESS;
}
return err;
}
void dlm_message_out(struct dlm_message *ms)
{
header_out(&ms->m_header);
ms->m_type = cpu_to_le32(ms->m_type);
ms->m_nodeid = cpu_to_le32(ms->m_nodeid);
ms->m_pid = cpu_to_le32(ms->m_pid);
ms->m_lkid = cpu_to_le32(ms->m_lkid);
ms->m_remid = cpu_to_le32(ms->m_remid);
ms->m_parent_lkid = cpu_to_le32(ms->m_parent_lkid);
ms->m_parent_remid = cpu_to_le32(ms->m_parent_remid);
ms->m_exflags = cpu_to_le32(ms->m_exflags);
ms->m_sbflags = cpu_to_le32(ms->m_sbflags);
ms->m_flags = cpu_to_le32(ms->m_flags);
ms->m_lvbseq = cpu_to_le32(ms->m_lvbseq);
ms->m_hash = cpu_to_le32(ms->m_hash);
ms->m_status = cpu_to_le32(ms->m_status);
ms->m_grmode = cpu_to_le32(ms->m_grmode);
ms->m_rqmode = cpu_to_le32(ms->m_rqmode);
ms->m_bastmode = cpu_to_le32(ms->m_bastmode);
ms->m_asts = cpu_to_le32(ms->m_asts);
ms->m_result = cpu_to_le32(to_dlm_errno(ms->m_result));
}
void dlm_message_in(struct dlm_message *ms)
{
header_in(&ms->m_header);
ms->m_type = le32_to_cpu(ms->m_type);
ms->m_nodeid = le32_to_cpu(ms->m_nodeid);
ms->m_pid = le32_to_cpu(ms->m_pid);
ms->m_lkid = le32_to_cpu(ms->m_lkid);
ms->m_remid = le32_to_cpu(ms->m_remid);
ms->m_parent_lkid = le32_to_cpu(ms->m_parent_lkid);
ms->m_parent_remid = le32_to_cpu(ms->m_parent_remid);
ms->m_exflags = le32_to_cpu(ms->m_exflags);
ms->m_sbflags = le32_to_cpu(ms->m_sbflags);
ms->m_flags = le32_to_cpu(ms->m_flags);
ms->m_lvbseq = le32_to_cpu(ms->m_lvbseq);
ms->m_hash = le32_to_cpu(ms->m_hash);
ms->m_status = le32_to_cpu(ms->m_status);
ms->m_grmode = le32_to_cpu(ms->m_grmode);
ms->m_rqmode = le32_to_cpu(ms->m_rqmode);
ms->m_bastmode = le32_to_cpu(ms->m_bastmode);
ms->m_asts = le32_to_cpu(ms->m_asts);
ms->m_result = from_dlm_errno(le32_to_cpu(ms->m_result));
}
static void rcom_lock_out(struct rcom_lock *rl)
{
rl->rl_ownpid = cpu_to_le32(rl->rl_ownpid);
rl->rl_lkid = cpu_to_le32(rl->rl_lkid);
rl->rl_remid = cpu_to_le32(rl->rl_remid);
rl->rl_parent_lkid = cpu_to_le32(rl->rl_parent_lkid);
rl->rl_parent_remid = cpu_to_le32(rl->rl_parent_remid);
rl->rl_exflags = cpu_to_le32(rl->rl_exflags);
rl->rl_flags = cpu_to_le32(rl->rl_flags);
rl->rl_lvbseq = cpu_to_le32(rl->rl_lvbseq);
rl->rl_result = cpu_to_le32(rl->rl_result);
rl->rl_wait_type = cpu_to_le16(rl->rl_wait_type);
rl->rl_namelen = cpu_to_le16(rl->rl_namelen);
}
static void rcom_lock_in(struct rcom_lock *rl)
{
rl->rl_ownpid = le32_to_cpu(rl->rl_ownpid);
rl->rl_lkid = le32_to_cpu(rl->rl_lkid);
rl->rl_remid = le32_to_cpu(rl->rl_remid);
rl->rl_parent_lkid = le32_to_cpu(rl->rl_parent_lkid);
rl->rl_parent_remid = le32_to_cpu(rl->rl_parent_remid);
rl->rl_exflags = le32_to_cpu(rl->rl_exflags);
rl->rl_flags = le32_to_cpu(rl->rl_flags);
rl->rl_lvbseq = le32_to_cpu(rl->rl_lvbseq);
rl->rl_result = le32_to_cpu(rl->rl_result);
rl->rl_wait_type = le16_to_cpu(rl->rl_wait_type);
rl->rl_namelen = le16_to_cpu(rl->rl_namelen);
}
static void rcom_config_out(struct rcom_config *rf)
{
rf->rf_lvblen = cpu_to_le32(rf->rf_lvblen);
rf->rf_lsflags = cpu_to_le32(rf->rf_lsflags);
}
static void rcom_config_in(struct rcom_config *rf)
{
rf->rf_lvblen = le32_to_cpu(rf->rf_lvblen);
rf->rf_lsflags = le32_to_cpu(rf->rf_lsflags);
}
void dlm_rcom_out(struct dlm_rcom *rc)
{
int type = rc->rc_type;
header_out(&rc->rc_header);
rc->rc_type = cpu_to_le32(rc->rc_type);
rc->rc_result = cpu_to_le32(rc->rc_result);
rc->rc_id = cpu_to_le64(rc->rc_id);
rc->rc_seq = cpu_to_le64(rc->rc_seq);
rc->rc_seq_reply = cpu_to_le64(rc->rc_seq_reply);
if ((type == DLM_RCOM_LOCK) || (type == DLM_RCOM_LOCK_REPLY))
rcom_lock_out((struct rcom_lock *) rc->rc_buf);
else if (type == DLM_RCOM_STATUS_REPLY)
rcom_config_out((struct rcom_config *) rc->rc_buf);
}
void dlm_rcom_in(struct dlm_rcom *rc)
{
int type;
header_in(&rc->rc_header);
rc->rc_type = le32_to_cpu(rc->rc_type);
rc->rc_result = le32_to_cpu(rc->rc_result);
rc->rc_id = le64_to_cpu(rc->rc_id);
rc->rc_seq = le64_to_cpu(rc->rc_seq);
rc->rc_seq_reply = le64_to_cpu(rc->rc_seq_reply);
type = rc->rc_type;
if ((type == DLM_RCOM_LOCK) || (type == DLM_RCOM_LOCK_REPLY))
rcom_lock_in((struct rcom_lock *) rc->rc_buf);
else if (type == DLM_RCOM_STATUS_REPLY)
rcom_config_in((struct rcom_config *) rc->rc_buf);
}
|
