1 // SPDX-License-Identifier: GPL-2.0-only <<
2 /********************************************* 1 /******************************************************************************
3 ********************************************** 2 *******************************************************************************
4 ** 3 **
5 ** Copyright (C) 2005-2008 Red Hat, Inc. All 4 ** Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.
6 ** 5 **
>> 6 ** This copyrighted material is made available to anyone wishing to use,
>> 7 ** modify, copy, or redistribute it subject to the terms and conditions
>> 8 ** of the GNU General Public License v.2.
7 ** 9 **
8 ********************************************** 10 *******************************************************************************
9 ********************************************** 11 ******************************************************************************/
10 12
11 #include "dlm_internal.h" 13 #include "dlm_internal.h"
12 #include "rcom.h" 14 #include "rcom.h"
13 #include "util.h" 15 #include "util.h"
14 16
15 #define DLM_ERRNO_EDEADLK 35 17 #define DLM_ERRNO_EDEADLK 35
16 #define DLM_ERRNO_EBADR 53 18 #define DLM_ERRNO_EBADR 53
17 #define DLM_ERRNO_EBADSLT 57 19 #define DLM_ERRNO_EBADSLT 57
18 #define DLM_ERRNO_EPROTO 71 20 #define DLM_ERRNO_EPROTO 71
19 #define DLM_ERRNO_EOPNOTSUPP 95 21 #define DLM_ERRNO_EOPNOTSUPP 95
20 #define DLM_ERRNO_ETIMEDOUT 110 22 #define DLM_ERRNO_ETIMEDOUT 110
21 #define DLM_ERRNO_EINPROGRESS 115 23 #define DLM_ERRNO_EINPROGRESS 115
22 24
>> 25 static void header_out(struct dlm_header *hd)
>> 26 {
>> 27 hd->h_version = cpu_to_le32(hd->h_version);
>> 28 hd->h_lockspace = cpu_to_le32(hd->h_lockspace);
>> 29 hd->h_nodeid = cpu_to_le32(hd->h_nodeid);
>> 30 hd->h_length = cpu_to_le16(hd->h_length);
>> 31 }
>> 32
>> 33 static void header_in(struct dlm_header *hd)
>> 34 {
>> 35 hd->h_version = le32_to_cpu(hd->h_version);
>> 36 hd->h_lockspace = le32_to_cpu(hd->h_lockspace);
>> 37 hd->h_nodeid = le32_to_cpu(hd->h_nodeid);
>> 38 hd->h_length = le16_to_cpu(hd->h_length);
>> 39 }
>> 40
23 /* higher errno values are inconsistent across 41 /* higher errno values are inconsistent across architectures, so select
24 one set of values for on the wire */ 42 one set of values for on the wire */
25 43
26 int to_dlm_errno(int err) !! 44 static int to_dlm_errno(int err)
27 { 45 {
28 switch (err) { 46 switch (err) {
29 case -EDEADLK: 47 case -EDEADLK:
30 return -DLM_ERRNO_EDEADLK; 48 return -DLM_ERRNO_EDEADLK;
31 case -EBADR: 49 case -EBADR:
32 return -DLM_ERRNO_EBADR; 50 return -DLM_ERRNO_EBADR;
33 case -EBADSLT: 51 case -EBADSLT:
34 return -DLM_ERRNO_EBADSLT; 52 return -DLM_ERRNO_EBADSLT;
35 case -EPROTO: 53 case -EPROTO:
36 return -DLM_ERRNO_EPROTO; 54 return -DLM_ERRNO_EPROTO;
37 case -EOPNOTSUPP: 55 case -EOPNOTSUPP:
38 return -DLM_ERRNO_EOPNOTSUPP; 56 return -DLM_ERRNO_EOPNOTSUPP;
39 case -ETIMEDOUT: 57 case -ETIMEDOUT:
40 return -DLM_ERRNO_ETIMEDOUT; 58 return -DLM_ERRNO_ETIMEDOUT;
41 case -EINPROGRESS: 59 case -EINPROGRESS:
42 return -DLM_ERRNO_EINPROGRESS; 60 return -DLM_ERRNO_EINPROGRESS;
43 } 61 }
44 return err; 62 return err;
45 } 63 }
46 64
47 int from_dlm_errno(int err) !! 65 static int from_dlm_errno(int err)
48 { 66 {
49 switch (err) { 67 switch (err) {
50 case -DLM_ERRNO_EDEADLK: 68 case -DLM_ERRNO_EDEADLK:
51 return -EDEADLK; 69 return -EDEADLK;
52 case -DLM_ERRNO_EBADR: 70 case -DLM_ERRNO_EBADR:
53 return -EBADR; 71 return -EBADR;
54 case -DLM_ERRNO_EBADSLT: 72 case -DLM_ERRNO_EBADSLT:
55 return -EBADSLT; 73 return -EBADSLT;
56 case -DLM_ERRNO_EPROTO: 74 case -DLM_ERRNO_EPROTO:
57 return -EPROTO; 75 return -EPROTO;
58 case -DLM_ERRNO_EOPNOTSUPP: 76 case -DLM_ERRNO_EOPNOTSUPP:
59 return -EOPNOTSUPP; 77 return -EOPNOTSUPP;
60 case -DLM_ERRNO_ETIMEDOUT: 78 case -DLM_ERRNO_ETIMEDOUT:
61 return -ETIMEDOUT; 79 return -ETIMEDOUT;
62 case -DLM_ERRNO_EINPROGRESS: 80 case -DLM_ERRNO_EINPROGRESS:
63 return -EINPROGRESS; 81 return -EINPROGRESS;
64 } 82 }
65 return err; 83 return err;
>> 84 }
>> 85
>> 86 void dlm_message_out(struct dlm_message *ms)
>> 87 {
>> 88 header_out(&ms->m_header);
>> 89
>> 90 ms->m_type = cpu_to_le32(ms->m_type);
>> 91 ms->m_nodeid = cpu_to_le32(ms->m_nodeid);
>> 92 ms->m_pid = cpu_to_le32(ms->m_pid);
>> 93 ms->m_lkid = cpu_to_le32(ms->m_lkid);
>> 94 ms->m_remid = cpu_to_le32(ms->m_remid);
>> 95 ms->m_parent_lkid = cpu_to_le32(ms->m_parent_lkid);
>> 96 ms->m_parent_remid = cpu_to_le32(ms->m_parent_remid);
>> 97 ms->m_exflags = cpu_to_le32(ms->m_exflags);
>> 98 ms->m_sbflags = cpu_to_le32(ms->m_sbflags);
>> 99 ms->m_flags = cpu_to_le32(ms->m_flags);
>> 100 ms->m_lvbseq = cpu_to_le32(ms->m_lvbseq);
>> 101 ms->m_hash = cpu_to_le32(ms->m_hash);
>> 102 ms->m_status = cpu_to_le32(ms->m_status);
>> 103 ms->m_grmode = cpu_to_le32(ms->m_grmode);
>> 104 ms->m_rqmode = cpu_to_le32(ms->m_rqmode);
>> 105 ms->m_bastmode = cpu_to_le32(ms->m_bastmode);
>> 106 ms->m_asts = cpu_to_le32(ms->m_asts);
>> 107 ms->m_result = cpu_to_le32(to_dlm_errno(ms->m_result));
>> 108 }
>> 109
>> 110 void dlm_message_in(struct dlm_message *ms)
>> 111 {
>> 112 header_in(&ms->m_header);
>> 113
>> 114 ms->m_type = le32_to_cpu(ms->m_type);
>> 115 ms->m_nodeid = le32_to_cpu(ms->m_nodeid);
>> 116 ms->m_pid = le32_to_cpu(ms->m_pid);
>> 117 ms->m_lkid = le32_to_cpu(ms->m_lkid);
>> 118 ms->m_remid = le32_to_cpu(ms->m_remid);
>> 119 ms->m_parent_lkid = le32_to_cpu(ms->m_parent_lkid);
>> 120 ms->m_parent_remid = le32_to_cpu(ms->m_parent_remid);
>> 121 ms->m_exflags = le32_to_cpu(ms->m_exflags);
>> 122 ms->m_sbflags = le32_to_cpu(ms->m_sbflags);
>> 123 ms->m_flags = le32_to_cpu(ms->m_flags);
>> 124 ms->m_lvbseq = le32_to_cpu(ms->m_lvbseq);
>> 125 ms->m_hash = le32_to_cpu(ms->m_hash);
>> 126 ms->m_status = le32_to_cpu(ms->m_status);
>> 127 ms->m_grmode = le32_to_cpu(ms->m_grmode);
>> 128 ms->m_rqmode = le32_to_cpu(ms->m_rqmode);
>> 129 ms->m_bastmode = le32_to_cpu(ms->m_bastmode);
>> 130 ms->m_asts = le32_to_cpu(ms->m_asts);
>> 131 ms->m_result = from_dlm_errno(le32_to_cpu(ms->m_result));
>> 132 }
>> 133
>> 134 void dlm_rcom_out(struct dlm_rcom *rc)
>> 135 {
>> 136 header_out(&rc->rc_header);
>> 137
>> 138 rc->rc_type = cpu_to_le32(rc->rc_type);
>> 139 rc->rc_result = cpu_to_le32(rc->rc_result);
>> 140 rc->rc_id = cpu_to_le64(rc->rc_id);
>> 141 rc->rc_seq = cpu_to_le64(rc->rc_seq);
>> 142 rc->rc_seq_reply = cpu_to_le64(rc->rc_seq_reply);
>> 143 }
>> 144
>> 145 void dlm_rcom_in(struct dlm_rcom *rc)
>> 146 {
>> 147 header_in(&rc->rc_header);
>> 148
>> 149 rc->rc_type = le32_to_cpu(rc->rc_type);
>> 150 rc->rc_result = le32_to_cpu(rc->rc_result);
>> 151 rc->rc_id = le64_to_cpu(rc->rc_id);
>> 152 rc->rc_seq = le64_to_cpu(rc->rc_seq);
>> 153 rc->rc_seq_reply = le64_to_cpu(rc->rc_seq_reply);
66 } 154 }
67 155
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