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
216
217
218
219
220
221
222
223
224
|
/*
* Copyright 2004-2023 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <sys/param.h>
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <inttypes.h> // PRIx64
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <time.h>
#include <glib.h>
#include <libxml/tree.h>
#include <crm/crm.h>
#include <crm/cib/internal.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <crm/common/remote_internal.h>
#include <pacemaker-based.h>
struct cib_notification_s {
const xmlNode *msg;
struct iovec *iov;
int32_t iov_size;
};
static void
cib_notify_send_one(gpointer key, gpointer value, gpointer user_data)
{
const char *type = NULL;
gboolean do_send = FALSE;
int rc = pcmk_rc_ok;
pcmk__client_t *client = value;
struct cib_notification_s *update = user_data;
if (client->ipcs == NULL && client->remote == NULL) {
crm_warn("Skipping client with NULL channel");
return;
}
type = crm_element_value(update->msg, F_SUBTYPE);
CRM_LOG_ASSERT(type != NULL);
if (pcmk_is_set(client->flags, cib_notify_diff)
&& pcmk__str_eq(type, T_CIB_DIFF_NOTIFY, pcmk__str_casei)) {
do_send = TRUE;
} else if (pcmk_is_set(client->flags, cib_notify_confirm)
&& pcmk__str_eq(type, T_CIB_UPDATE_CONFIRM, pcmk__str_casei)) {
do_send = TRUE;
} else if (pcmk_is_set(client->flags, cib_notify_pre)
&& pcmk__str_eq(type, T_CIB_PRE_NOTIFY, pcmk__str_casei)) {
do_send = TRUE;
} else if (pcmk_is_set(client->flags, cib_notify_post)
&& pcmk__str_eq(type, T_CIB_POST_NOTIFY, pcmk__str_casei)) {
do_send = TRUE;
}
if (do_send) {
switch (PCMK__CLIENT_TYPE(client)) {
case pcmk__client_ipc:
rc = pcmk__ipc_send_iov(client, update->iov,
crm_ipc_server_event);
if (rc != pcmk_rc_ok) {
crm_warn("Could not notify client %s: %s " CRM_XS " id=%s",
pcmk__client_name(client), pcmk_rc_str(rc),
client->id);
}
break;
#ifdef HAVE_GNUTLS_GNUTLS_H
case pcmk__client_tls:
#endif
case pcmk__client_tcp:
crm_debug("Sent %s notification to client %s (id %s)",
type, pcmk__client_name(client), client->id);
pcmk__remote_send_xml(client->remote, update->msg);
break;
default:
crm_err("Unknown transport for client %s "
CRM_XS " flags=%#016" PRIx64,
pcmk__client_name(client), client->flags);
}
}
}
static void
cib_notify_send(const xmlNode *xml)
{
struct iovec *iov;
struct cib_notification_s update;
ssize_t bytes = 0;
int rc = pcmk__ipc_prepare_iov(0, xml, 0, &iov, &bytes);
if (rc == pcmk_rc_ok) {
update.msg = xml;
update.iov = iov;
update.iov_size = bytes;
pcmk__foreach_ipc_client(cib_notify_send_one, &update);
} else {
crm_notice("Could not notify clients: %s " CRM_XS " rc=%d",
pcmk_rc_str(rc), rc);
}
pcmk_free_ipc_event(iov);
}
static void
attach_cib_generation(xmlNode *msg, const char *field, xmlNode *a_cib)
{
xmlNode *generation = create_xml_node(NULL, XML_CIB_TAG_GENERATION_TUPPLE);
if (a_cib != NULL) {
copy_in_properties(generation, a_cib);
}
add_message_xml(msg, field, generation);
free_xml(generation);
}
void
cib_diff_notify(const char *op, int result, const char *call_id,
const char *client_id, const char *client_name,
const char *origin, xmlNode *update, xmlNode *diff)
{
int add_updates = 0;
int add_epoch = 0;
int add_admin_epoch = 0;
int del_updates = 0;
int del_epoch = 0;
int del_admin_epoch = 0;
uint8_t log_level = LOG_TRACE;
xmlNode *update_msg = NULL;
const char *type = NULL;
if (diff == NULL) {
return;
}
if (result != pcmk_ok) {
log_level = LOG_WARNING;
}
cib_diff_version_details(diff, &add_admin_epoch, &add_epoch, &add_updates,
&del_admin_epoch, &del_epoch, &del_updates);
if ((add_admin_epoch != del_admin_epoch)
|| (add_epoch != del_epoch)
|| (add_updates != del_updates)) {
do_crm_log(log_level,
"Updated CIB generation %d.%d.%d to %d.%d.%d from client "
"%s%s%s (%s) (%s)",
del_admin_epoch, del_epoch, del_updates,
add_admin_epoch, add_epoch, add_updates,
client_name,
((call_id != NULL)? " call " : ""), pcmk__s(call_id, ""),
pcmk__s(origin, "unspecified peer"), pcmk_strerror(result));
} else if ((add_admin_epoch != 0)
|| (add_epoch != 0)
|| (add_updates != 0)) {
do_crm_log(log_level,
"Local-only change to CIB generation %d.%d.%d from client "
"%s%s%s (%s) (%s)",
add_admin_epoch, add_epoch, add_updates,
client_name,
((call_id != NULL)? " call " : ""), pcmk__s(call_id, ""),
pcmk__s(origin, "unspecified peer"), pcmk_strerror(result));
}
update_msg = create_xml_node(NULL, "notify");
crm_xml_add(update_msg, F_TYPE, T_CIB_NOTIFY);
crm_xml_add(update_msg, F_SUBTYPE, T_CIB_DIFF_NOTIFY);
crm_xml_add(update_msg, F_CIB_OPERATION, op);
crm_xml_add(update_msg, F_CIB_CLIENTID, client_id);
crm_xml_add(update_msg, F_CIB_CLIENTNAME, client_name);
crm_xml_add(update_msg, F_CIB_CALLID, call_id);
crm_xml_add(update_msg, F_ORIG, origin);
crm_xml_add_int(update_msg, F_CIB_RC, result);
if (update != NULL) {
type = (const char *) update->name;
crm_trace("Setting type to update->name: %s", type);
} else {
type = (const char *) diff->name;
crm_trace("Setting type to new_obj->name: %s", type);
}
crm_xml_add(update_msg, F_CIB_OBJID, ID(diff));
crm_xml_add(update_msg, F_CIB_OBJTYPE, type);
attach_cib_generation(update_msg, "cib_generation", the_cib);
if (update != NULL) {
add_message_xml(update_msg, F_CIB_UPDATE, update);
}
add_message_xml(update_msg, F_CIB_UPDATE_RESULT, diff);
crm_log_xml_trace(update_msg, "diff-notify");
cib_notify_send(update_msg);
free_xml(update_msg);
}
|
