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
225
226
227
|
/*
* Copyright 2019-2023 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 <crm/common/cmdline_internal.h>
#include <crm/common/output_internal.h>
#include <crm/common/iso8601.h>
#include <crm/msg_xml.h>
#include <crm/pengine/rules_internal.h>
#include <crm/pengine/status.h>
#include <pacemaker-internal.h>
#include <sys/stat.h>
#define SUMMARY "evaluate rules from the Pacemaker configuration"
static pcmk__supported_format_t formats[] = {
PCMK__SUPPORTED_FORMAT_NONE,
PCMK__SUPPORTED_FORMAT_TEXT,
PCMK__SUPPORTED_FORMAT_XML,
{ NULL, NULL, NULL }
};
enum crm_rule_mode {
crm_rule_mode_none,
crm_rule_mode_check
};
struct {
char *date;
char *input_xml;
enum crm_rule_mode mode;
gchar **rules;
} options = {
.mode = crm_rule_mode_none
};
static gboolean mode_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error);
static GOptionEntry mode_entries[] = {
{ "check", 'c', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, mode_cb,
"Check whether a rule is in effect",
NULL },
{ NULL }
};
static GOptionEntry data_entries[] = {
{ "xml-text", 'X', 0, G_OPTION_ARG_STRING, &options.input_xml,
"Use argument for XML (or stdin if '-')",
NULL },
{ NULL }
};
static GOptionEntry addl_entries[] = {
{ "date", 'd', 0, G_OPTION_ARG_STRING, &options.date,
"Whether the rule is in effect on a given date",
NULL },
{ "rule", 'r', 0, G_OPTION_ARG_STRING_ARRAY, &options.rules,
"The ID of the rule to check (may be specified multiple times)",
NULL },
{ NULL }
};
static gboolean
mode_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
if (strcmp(option_name, "c")) {
options.mode = crm_rule_mode_check;
}
return TRUE;
}
static GOptionContext *
build_arg_context(pcmk__common_args_t *args, GOptionGroup **group) {
GOptionContext *context = NULL;
context = pcmk__build_arg_context(args, "text (default), xml", group, NULL);
pcmk__add_arg_group(context, "modes", "Modes (mutually exclusive):",
"Show modes of operation", mode_entries);
pcmk__add_arg_group(context, "data", "Data:",
"Show data options", data_entries);
pcmk__add_arg_group(context, "additional", "Additional Options:",
"Show additional options", addl_entries);
return context;
}
int
main(int argc, char **argv)
{
crm_time_t *rule_date = NULL;
xmlNode *input = NULL;
int rc = pcmk_rc_ok;
crm_exit_t exit_code = CRM_EX_OK;
GError *error = NULL;
pcmk__output_t *out = NULL;
GOptionGroup *output_group = NULL;
pcmk__common_args_t *args = pcmk__new_common_args(SUMMARY);
GOptionContext *context = build_arg_context(args, &output_group);
gchar **processed_args = pcmk__cmdline_preproc(argv, "drX");
pcmk__register_formats(output_group, formats);
if (!g_option_context_parse_strv(context, &processed_args, &error)) {
exit_code = CRM_EX_USAGE;
goto done;
}
pcmk__cli_init_logging("crm_rule", args->verbosity);
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;
}
pcmk__register_lib_messages(out);
if (args->version) {
out->version(out, false);
goto done;
}
/* Check command line arguments before opening a connection to
* the CIB manager or doing anything else important.
*/
switch(options.mode) {
case crm_rule_mode_check:
if (options.rules == NULL) {
exit_code = CRM_EX_USAGE;
g_set_error(&error, PCMK__EXITC_ERROR, exit_code, "--check requires use of --rule=");
goto done;
}
break;
default:
exit_code = CRM_EX_USAGE;
g_set_error(&error, PCMK__EXITC_ERROR, exit_code, "No mode operation given");
goto done;
break;
}
/* Set up some defaults. */
rule_date = crm_time_new(options.date);
if (rule_date == NULL) {
if (options.date != NULL) {
exit_code = CRM_EX_DATAERR;
g_set_error(&error, PCMK__EXITC_ERROR, exit_code,
"Invalid date specified: '%s'", options.date);
} else {
// Should never happen
exit_code = CRM_EX_OSERR;
g_set_error(&error, PCMK__EXITC_ERROR, exit_code,
"No --date given and can't determine current date");
}
goto done;
}
// Parse the input XML specified by the command-line options, if any
if (pcmk__str_eq(options.input_xml, "-", pcmk__str_casei)) {
input = stdin2xml();
if (input == NULL) {
exit_code = CRM_EX_DATAERR;
g_set_error(&error, PCMK__EXITC_ERROR, exit_code, "Couldn't parse input from STDIN\n");
goto done;
}
} else if (options.input_xml != NULL) {
input = string2xml(options.input_xml);
if (input == NULL) {
exit_code = CRM_EX_DATAERR;
g_set_error(&error, PCMK__EXITC_ERROR, exit_code,
"Couldn't parse input string: %s\n", options.input_xml);
goto done;
}
}
/* Now do whichever operation mode was asked for. There's only one at the
* moment so this looks a little silly, but I expect there will be more
* modes in the future.
*/
switch(options.mode) {
case crm_rule_mode_check:
rc = pcmk__check_rules(out, input, rule_date,
(const char **) options.rules);
exit_code = pcmk_rc2exitc(rc);
break;
default:
break;
}
done:
g_strfreev(processed_args);
pcmk__free_arg_context(context);
crm_time_free(rule_date);
free_xml(input);
pcmk__output_and_clear_error(&error, out);
if (out != NULL) {
out->finish(out, exit_code, true, NULL);
pcmk__output_free(out);
}
pcmk__unregister_formats();
return crm_exit(exit_code);
}
|
