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
|
/*
* 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 <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <crm/crm.h>
#include <crm/common/cmdline_internal.h>
#include <crm/common/ipc.h>
#include <crm/common/output_internal.h>
#include <crm/common/xml.h>
#include <pacemaker-controld.h>
#define SUMMARY "daemon for coordinating a Pacemaker cluster's response " \
"to events"
_Noreturn void crmd_init(void);
extern void init_dotfile(void);
controld_globals_t controld_globals = {
// Automatic initialization to 0, false, or NULL is fine for most members
.fsa_state = S_STARTING,
.fsa_actions = A_NOTHING,
};
static pcmk__supported_format_t formats[] = {
PCMK__SUPPORTED_FORMAT_NONE,
PCMK__SUPPORTED_FORMAT_TEXT,
PCMK__SUPPORTED_FORMAT_XML,
{ NULL, NULL, NULL }
};
static GOptionContext *
build_arg_context(pcmk__common_args_t *args, GOptionGroup **group)
{
return pcmk__build_arg_context(args, "text (default), xml", group,
"[metadata]");
}
int
main(int argc, char **argv)
{
int rc = pcmk_rc_ok;
crm_exit_t exit_code = CRM_EX_OK;
bool initialize = true;
crm_ipc_t *old_instance = NULL;
pcmk__output_t *out = NULL;
GError *error = NULL;
GOptionGroup *output_group = NULL;
pcmk__common_args_t *args = pcmk__new_common_args(SUMMARY);
gchar **processed_args = pcmk__cmdline_preproc(argv, NULL);
GOptionContext *context = build_arg_context(args, &output_group);
crm_log_preinit(NULL, argc, argv);
pcmk__register_formats(output_group, formats);
if (!g_option_context_parse_strv(context, &processed_args, &error)) {
exit_code = CRM_EX_USAGE;
goto done;
}
rc = pcmk__output_new(&out, args->output_ty, args->output_dest, argv);
if (rc != pcmk_rc_ok) {
exit_code = CRM_EX_ERROR;
g_set_error(&error, PCMK__EXITC_ERROR, exit_code,
"Error creating output format %s: %s",
args->output_ty, pcmk_rc_str(rc));
goto done;
}
if (args->version) {
out->version(out, false);
initialize = false;
goto done;
}
if ((g_strv_length(processed_args) >= 2)
&& pcmk__str_eq(processed_args[1], "metadata", pcmk__str_none)) {
crmd_metadata();
initialize = false;
goto done;
}
pcmk__cli_init_logging("pacemaker-controld", args->verbosity);
crm_log_init(NULL, LOG_INFO, TRUE, FALSE, argc, argv, FALSE);
crm_notice("Starting Pacemaker controller");
old_instance = crm_ipc_new(CRM_SYSTEM_CRMD, 0);
if (old_instance == NULL) {
/* crm_ipc_new will have already printed an error message with crm_err. */
exit_code = CRM_EX_FATAL;
goto done;
}
if (crm_ipc_connect(old_instance)) {
/* IPC end-point already up */
crm_ipc_close(old_instance);
crm_ipc_destroy(old_instance);
crm_err("pacemaker-controld is already active, aborting startup");
initialize = false;
goto done;
} else {
/* not up or not authentic, we'll proceed either way */
crm_ipc_destroy(old_instance);
old_instance = NULL;
}
if (pcmk__daemon_can_write(PE_STATE_DIR, NULL) == FALSE) {
exit_code = CRM_EX_FATAL;
crm_err("Terminating due to bad permissions on " PE_STATE_DIR);
g_set_error(&error, PCMK__EXITC_ERROR, exit_code,
"Bad permissions on " PE_STATE_DIR
" (see logs for details)");
goto done;
} else if (pcmk__daemon_can_write(CRM_CONFIG_DIR, NULL) == FALSE) {
exit_code = CRM_EX_FATAL;
crm_err("Terminating due to bad permissions on " CRM_CONFIG_DIR);
g_set_error(&error, PCMK__EXITC_ERROR, exit_code,
"Bad permissions on " CRM_CONFIG_DIR
" (see logs for details)");
goto done;
}
if (pcmk__log_output_new(&(controld_globals.logger_out)) != pcmk_rc_ok) {
exit_code = CRM_EX_FATAL;
goto done;
}
pcmk__output_set_log_level(controld_globals.logger_out, LOG_TRACE);
done:
g_strfreev(processed_args);
pcmk__free_arg_context(context);
pcmk__output_and_clear_error(&error, out);
if (out != NULL) {
out->finish(out, exit_code, true, NULL);
pcmk__output_free(out);
}
pcmk__unregister_formats();
if ((exit_code == CRM_EX_OK) && initialize) {
// Does not return
crmd_init();
}
crm_exit(exit_code);
}
void
crmd_init(void)
{
crm_exit_t exit_code = CRM_EX_OK;
enum crmd_fsa_state state;
init_dotfile();
register_fsa_input(C_STARTUP, I_STARTUP, NULL);
crm_peer_init();
state = s_crmd_fsa(C_STARTUP);
if (state == S_PENDING || state == S_STARTING) {
/* Create the mainloop and run it... */
crm_trace("Starting %s's mainloop", crm_system_name);
controld_globals.mainloop = g_main_loop_new(NULL, FALSE);
g_main_loop_run(controld_globals.mainloop);
if (pcmk_is_set(controld_globals.fsa_input_register, R_STAYDOWN)) {
crm_info("Inhibiting automated respawn");
exit_code = CRM_EX_FATAL;
}
} else {
crm_err("Startup of %s failed. Current state: %s",
crm_system_name, fsa_state2string(state));
exit_code = CRM_EX_ERROR;
}
crm_info("%s[%lu] exiting with status %d (%s)",
crm_system_name, (unsigned long) getpid(), exit_code,
crm_exit_str(exit_code));
crmd_fast_exit(exit_code);
}
|
