2 Unix SMB/CIFS implementation.
3 Samba utility functions
4 Copyright (C) Andrew Bartlett 2011
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "librpc/gen_ndr/server_id.h"
23 bool server_id_same_process(const struct server_id
*p1
,
24 const struct server_id
*p2
)
26 return ((p1
->pid
== p2
->pid
) && (p1
->vnn
== p2
->vnn
));
29 bool server_id_equal(const struct server_id
*p1
, const struct server_id
*p2
)
31 if (!server_id_same_process(p1
, p2
)) {
35 if (p1
->task_id
!= p2
->task_id
) {
39 if (p1
->unique_id
!= p2
->unique_id
) {
46 char *server_id_str_buf(struct server_id id
, struct server_id_buf
*dst
)
48 if (server_id_is_disconnected(&id
)) {
49 strlcpy(dst
->buf
, "disconnected", sizeof(dst
->buf
));
50 } else if ((id
.vnn
== NONCLUSTER_VNN
) && (id
.task_id
== 0)) {
51 snprintf(dst
->buf
, sizeof(dst
->buf
), "%llu",
52 (unsigned long long)id
.pid
);
53 } else if (id
.vnn
== NONCLUSTER_VNN
) {
54 snprintf(dst
->buf
, sizeof(dst
->buf
), "%llu.%u",
55 (unsigned long long)id
.pid
, (unsigned)id
.task_id
);
56 } else if (id
.task_id
== 0) {
57 snprintf(dst
->buf
, sizeof(dst
->buf
), "%u:%llu",
58 (unsigned)id
.vnn
, (unsigned long long)id
.pid
);
60 snprintf(dst
->buf
, sizeof(dst
->buf
), "%u:%llu.%u",
62 (unsigned long long)id
.pid
,
63 (unsigned)id
.task_id
);
68 char *server_id_str(TALLOC_CTX
*mem_ctx
, const struct server_id
*id
)
70 struct server_id_buf tmp
;
73 result
= talloc_strdup(mem_ctx
, server_id_str_buf(*id
, &tmp
));
79 * beautify the talloc_report output
81 talloc_set_name_const(result
, result
);
85 struct server_id
server_id_from_string(uint32_t local_vnn
,
86 const char *pid_string
)
88 struct server_id result
;
89 unsigned long long pid
;
90 unsigned int vnn
, task_id
= 0;
95 * We accept various forms with 1, 2 or 3 component forms
96 * because the server_id_str() can print different forms, and
97 * we want backwards compatibility for scripts that may call
100 if (sscanf(pid_string
, "%u:%llu.%u", &vnn
, &pid
, &task_id
) == 3) {
103 result
.task_id
= task_id
;
104 } else if (sscanf(pid_string
, "%u:%llu", &vnn
, &pid
) == 2) {
107 } else if (sscanf(pid_string
, "%llu.%u", &pid
, &task_id
) == 2) {
108 result
.vnn
= local_vnn
;
110 result
.task_id
= task_id
;
111 } else if (sscanf(pid_string
, "%llu", &pid
) == 1) {
112 result
.vnn
= local_vnn
;
114 } else if (strcmp(pid_string
, "disconnected") ==0) {
115 server_id_set_disconnected(&result
);
117 result
.vnn
= NONCLUSTER_VNN
;
118 result
.pid
= UINT64_MAX
;
124 * Set the serverid to the special value that represents a disconnected
125 * client for (e.g.) durable handles.
127 void server_id_set_disconnected(struct server_id
*id
)
129 SMB_ASSERT(id
!= NULL
);
131 id
->pid
= UINT64_MAX
;
132 id
->task_id
= UINT32_MAX
;
133 id
->vnn
= NONCLUSTER_VNN
;
134 id
->unique_id
= SERVERID_UNIQUE_ID_NOT_TO_VERIFY
;
140 * check whether a serverid is the special placeholder for
141 * a disconnected client
143 bool server_id_is_disconnected(const struct server_id
*id
)
145 struct server_id dis
;
147 SMB_ASSERT(id
!= NULL
);
149 server_id_set_disconnected(&dis
);
151 return server_id_equal(id
, &dis
);
154 void server_id_put(uint8_t buf
[24], const struct server_id id
)
156 SBVAL(buf
, 0, id
.pid
);
157 SIVAL(buf
, 8, id
.task_id
);
158 SIVAL(buf
, 12, id
.vnn
);
159 SBVAL(buf
, 16, id
.unique_id
);
162 void server_id_get(struct server_id
*id
, const uint8_t buf
[24])
164 id
->pid
= BVAL(buf
, 0);
165 id
->task_id
= IVAL(buf
, 8);
166 id
->vnn
= IVAL(buf
, 12);
167 id
->unique_id
= BVAL(buf
, 16);