This source file includes following definitions.
- stonith__list_rhcs_agents
- stonith_rhcs_parameter_not_required
- stonith__rhcs_get_metadata
- stonith__rhcs_metadata
- stonith__agent_is_rhcs
- stonith__rhcs_validate
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10 #include <crm_internal.h>
11
12 #include <stdio.h>
13 #include <string.h>
14 #include <sys/stat.h>
15 #include <glib.h>
16 #include <dirent.h>
17
18 #include <crm/crm.h>
19 #include <crm/stonith-ng.h>
20 #include <crm/fencing/internal.h>
21
22 #include "fencing_private.h"
23
24 #define RH_STONITH_PREFIX "fence_"
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33
34 int
35 stonith__list_rhcs_agents(stonith_key_value_t **devices)
36 {
37
38
39 int count = 0, i;
40 struct dirent **namelist;
41 const int file_num = scandir(PCMK__FENCE_BINDIR, &namelist, 0, alphasort);
42
43 #if _POSIX_C_SOURCE < 200809L && !(defined(O_SEARCH) || defined(O_PATH))
44 char buffer[FILENAME_MAX + 1];
45 #elif defined(O_SEARCH)
46 const int dirfd = open(PCMK__FENCE_BINDIR, O_SEARCH);
47 #else
48 const int dirfd = open(PCMK__FENCE_BINDIR, O_PATH);
49 #endif
50
51 for (i = 0; i < file_num; i++) {
52 struct stat prop;
53
54 if (pcmk__starts_with(namelist[i]->d_name, RH_STONITH_PREFIX)) {
55 #if _POSIX_C_SOURCE < 200809L && !(defined(O_SEARCH) || defined(O_PATH))
56 snprintf(buffer, sizeof(buffer), "%s/%s", PCMK__FENCE_BINDIR,
57 namelist[i]->d_name);
58 if (stat(buffer, &prop) == 0 && S_ISREG(prop.st_mode)) {
59 #else
60 if (dirfd == -1) {
61 if (i == 0) {
62 crm_notice("Problem with listing %s directory"
63 CRM_XS "errno=%d", RH_STONITH_PREFIX, errno);
64 }
65 free(namelist[i]);
66 continue;
67 }
68
69
70
71 if (fstatat(dirfd, namelist[i]->d_name, &prop, 0) == 0
72 && S_ISREG(prop.st_mode)) {
73 #endif
74 *devices = stonith_key_value_add(*devices, NULL,
75 namelist[i]->d_name);
76 count++;
77 }
78 }
79 free(namelist[i]);
80 }
81 if (file_num > 0) {
82 free(namelist);
83 }
84 #if _POSIX_C_SOURCE >= 200809L || defined(O_SEARCH) || defined(O_PATH)
85 if (dirfd >= 0) {
86 close(dirfd);
87 }
88 #endif
89 return count;
90 }
91
92 static void
93 stonith_rhcs_parameter_not_required(xmlNode *metadata, const char *parameter)
94 {
95 char *xpath = NULL;
96 xmlXPathObject *xpathObj = NULL;
97
98 CRM_CHECK(metadata != NULL, return);
99 CRM_CHECK(parameter != NULL, return);
100
101 xpath = crm_strdup_printf("//parameter[@name='%s']", parameter);
102
103
104 xpathObj = xpath_search(metadata, xpath);
105 if (numXpathResults(xpathObj) > 0) {
106 xmlNode *tmp = getXpathResult(xpathObj, 0);
107
108 crm_xml_add(tmp, "required", "0");
109 }
110 freeXpathObject(xpathObj);
111 free(xpath);
112 }
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122
123 static int
124 stonith__rhcs_get_metadata(const char *agent, int timeout, xmlNode **metadata)
125 {
126 char *buffer = NULL;
127 xmlNode *xml = NULL;
128 xmlNode *actions = NULL;
129 xmlXPathObject *xpathObj = NULL;
130 stonith_action_t *action = stonith_action_create(agent, "metadata", NULL, 0,
131 5, NULL, NULL, NULL);
132 int rc = stonith__execute(action);
133
134 if (rc < 0) {
135 crm_warn("Could not execute metadata action for %s: %s "
136 CRM_XS " rc=%d", agent, pcmk_strerror(rc), rc);
137 stonith__destroy_action(action);
138 return rc;
139 }
140
141 stonith__action_result(action, &rc, &buffer, NULL);
142 stonith__destroy_action(action);
143 if (rc < 0) {
144 crm_warn("Metadata action for %s failed: %s " CRM_XS "rc=%d",
145 agent, pcmk_strerror(rc), rc);
146 free(buffer);
147 return rc;
148 }
149
150 if (buffer == NULL) {
151 crm_warn("Metadata action for %s returned no data", agent);
152 return -ENODATA;
153 }
154
155 xml = string2xml(buffer);
156 free(buffer);
157 buffer = NULL;
158 if (xml == NULL) {
159 crm_warn("Metadata for %s is invalid", agent);
160 return -pcmk_err_schema_validation;
161 }
162
163 xpathObj = xpath_search(xml, "//actions");
164 if (numXpathResults(xpathObj) > 0) {
165 actions = getXpathResult(xpathObj, 0);
166 }
167 freeXpathObject(xpathObj);
168
169
170 xpathObj = xpath_search(xml, "//action[@name='stop']");
171 if (numXpathResults(xpathObj) <= 0) {
172 xmlNode *tmp = NULL;
173
174 tmp = create_xml_node(actions, "action");
175 crm_xml_add(tmp, "name", "stop");
176 crm_xml_add(tmp, "timeout", CRM_DEFAULT_OP_TIMEOUT_S);
177
178 tmp = create_xml_node(actions, "action");
179 crm_xml_add(tmp, "name", "start");
180 crm_xml_add(tmp, "timeout", CRM_DEFAULT_OP_TIMEOUT_S);
181 }
182 freeXpathObject(xpathObj);
183
184
185 stonith_rhcs_parameter_not_required(xml, "action");
186 stonith_rhcs_parameter_not_required(xml, "plug");
187 stonith_rhcs_parameter_not_required(xml, "port");
188
189 if (metadata) {
190 *metadata = xml;
191
192 } else {
193 free_xml(xml);
194 }
195
196 return pcmk_ok;
197 }
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207
208 int
209 stonith__rhcs_metadata(const char *agent, int timeout, char **output)
210 {
211 char *buffer = NULL;
212 xmlNode *xml = NULL;
213
214 int rc = stonith__rhcs_get_metadata(agent, timeout, &xml);
215
216 if (rc != pcmk_ok) {
217 free_xml(xml);
218 return rc;
219 }
220
221 buffer = dump_xml_formatted_with_text(xml);
222 free_xml(xml);
223 if (buffer == NULL) {
224 return -pcmk_err_schema_validation;
225 }
226 if (output) {
227 *output = buffer;
228 } else {
229 free(buffer);
230 }
231 return pcmk_ok;
232 }
233
234 bool
235 stonith__agent_is_rhcs(const char *agent)
236 {
237 struct stat prop;
238 char *buffer = crm_strdup_printf(PCMK__FENCE_BINDIR "/%s", agent);
239 int rc = stat(buffer, &prop);
240
241 free(buffer);
242 return (rc >= 0) && S_ISREG(prop.st_mode);
243 }
244
245 int
246 stonith__rhcs_validate(stonith_t *st, int call_options, const char *target,
247 const char *agent, GHashTable *params,
248 const char * host_arg, int timeout,
249 char **output, char **error_output)
250 {
251 int rc = pcmk_ok;
252 int remaining_timeout = timeout;
253 xmlNode *metadata = NULL;
254 stonith_action_t *action = NULL;
255
256 if (host_arg == NULL) {
257 time_t start_time = time(NULL);
258
259 rc = stonith__rhcs_get_metadata(agent, remaining_timeout, &metadata);
260
261 if (rc == pcmk_ok) {
262 uint32_t device_flags = 0;
263
264 stonith__device_parameter_flags(&device_flags, agent, metadata);
265 if (pcmk_is_set(device_flags, st_device_supports_parameter_port)) {
266 host_arg = "port";
267
268 } else if (pcmk_is_set(device_flags,
269 st_device_supports_parameter_plug)) {
270 host_arg = "plug";
271 }
272 }
273
274 free_xml(metadata);
275
276 remaining_timeout -= time(NULL) - start_time;
277
278 if (rc == -ETIME || remaining_timeout <= 0 ) {
279 return -ETIME;
280 }
281
282 } else if (pcmk__str_eq(host_arg, "none", pcmk__str_casei)) {
283 host_arg = NULL;
284 }
285
286 action = stonith_action_create(agent, "validate-all",
287 target, 0, remaining_timeout, params,
288 NULL, host_arg);
289
290 rc = stonith__execute(action);
291 if (rc == pcmk_ok) {
292 stonith__action_result(action, &rc, output, error_output);
293 }
294 stonith__destroy_action(action);
295 return rc;
296 }