* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <pthread.h>
#include <signal.h>
+#include <inttypes.h>
#include "ferr.h"
#include "vty.h"
#include "jhash.h"
#include "memory.h"
+#include "hash.h"
+#include "command.h"
+#include "json.h"
+#include "linklist.h"
DEFINE_MTYPE_STATIC(LIB, ERRINFO, "error information")
+/*
+ * Thread-specific key for temporary storage of allocated ferr.
+ */
static pthread_key_t errkey;
static void ferr_free(void *arg)
pthread_key_delete(errkey);
}
+/*
+ * Global shared hash table holding reference text for all defined errors.
+ */
+pthread_mutex_t refs_mtx = PTHREAD_MUTEX_INITIALIZER;
+struct hash *refs;
+
+static bool ferr_hash_cmp(const void *a, const void *b)
+{
+ const struct log_ref *f_a = a;
+ const struct log_ref *f_b = b;
+
+ return f_a->code == f_b->code;
+}
+
+static inline unsigned int ferr_hash_key(void *a)
+{
+ struct log_ref *f = a;
+
+ return f->code;
+}
+
+void log_ref_add(struct log_ref *ref)
+{
+ uint32_t i = 0;
+
+ pthread_mutex_lock(&refs_mtx);
+ {
+ while (ref[i].code != END_FERR) {
+ hash_get(refs, &ref[i], hash_alloc_intern);
+ i++;
+ }
+ }
+ pthread_mutex_unlock(&refs_mtx);
+}
+
+struct log_ref *log_ref_get(uint32_t code)
+{
+ struct log_ref holder;
+ struct log_ref *ref;
+
+ holder.code = code;
+ pthread_mutex_lock(&refs_mtx);
+ {
+ ref = hash_lookup(refs, &holder);
+ }
+ pthread_mutex_unlock(&refs_mtx);
+
+ return ref;
+}
+
+void log_ref_display(struct vty *vty, uint32_t code, bool json)
+{
+ struct log_ref *ref;
+ struct json_object *top = NULL, *obj = NULL;
+ struct list *errlist;
+ struct listnode *ln;
+
+ if (json)
+ top = json_object_new_object();
+
+ pthread_mutex_lock(&refs_mtx);
+ {
+ errlist = code ? list_new() : hash_to_list(refs);
+ }
+ pthread_mutex_unlock(&refs_mtx);
+
+ if (code) {
+ ref = log_ref_get(code);
+ if (!ref) {
+ vty_out(vty, "Code %"PRIu32" - Unknown\n", code);
+ return;
+ }
+ listnode_add(errlist, ref);
+ }
+
+ for (ALL_LIST_ELEMENTS_RO(errlist, ln, ref)) {
+ if (json) {
+ char key[11];
+
+ snprintf(key, sizeof(key), "%"PRIu32, ref->code);
+ obj = json_object_new_object();
+ json_object_string_add(obj, "title", ref->title);
+ json_object_string_add(obj, "description",
+ ref->description);
+ json_object_string_add(obj, "suggestion",
+ ref->suggestion);
+ json_object_object_add(top, key, obj);
+ } else {
+ char pbuf[256];
+ char ubuf[256];
+
+ snprintf(pbuf, sizeof(pbuf), "\nError %"PRIu32" - %s",
+ ref->code, ref->title);
+ memset(ubuf, '=', strlen(pbuf));
+ ubuf[strlen(pbuf)] = '\0';
+
+ vty_out(vty, "%s\n%s\n", pbuf, ubuf);
+ vty_out(vty, "Description:\n%s\n\n", ref->description);
+ vty_out(vty, "Recommendation:\n%s\n", ref->suggestion);
+ }
+ }
+
+ if (json) {
+ const char *str = json_object_to_json_string_ext(
+ top, JSON_C_TO_STRING_PRETTY);
+ vty_out(vty, "%s\n", str);
+ json_object_free(top);
+ }
+
+ list_delete(&errlist);
+}
+
+DEFUN_NOSH(show_error_code,
+ show_error_code_cmd,
+ "show error <(1-4294967296)|all> [json]",
+ SHOW_STR
+ "Information on errors\n"
+ "Error code to get info about\n"
+ "Information on all errors\n"
+ JSON_STR)
+{
+ bool json = strmatch(argv[argc-1]->text, "json");
+ uint32_t arg = 0;
+
+ if (!strmatch(argv[2]->text, "all"))
+ arg = strtoul(argv[2]->arg, NULL, 10);
+
+ log_ref_display(vty, arg, json);
+ return CMD_SUCCESS;
+}
+
+void log_ref_init(void)
+{
+ pthread_mutex_lock(&refs_mtx);
+ {
+ refs = hash_create(ferr_hash_key, ferr_hash_cmp,
+ "Error Reference Texts");
+ }
+ pthread_mutex_unlock(&refs_mtx);
+
+ install_element(VIEW_NODE, &show_error_code_cmd);
+}
+
+void log_ref_fini(void)
+{
+ pthread_mutex_lock(&refs_mtx);
+ {
+ hash_clean(refs, NULL);
+ hash_free(refs);
+ refs = NULL;
+ }
+ pthread_mutex_unlock(&refs_mtx);
+}
+
const struct ferr *ferr_get_last(ferr_r errval)
{
struct ferr *last_error = pthread_getspecific(errkey);
}
static ferr_r ferr_set_va(const char *file, int line, const char *func,
- enum ferr_kind kind, const char *pathname, int errno_val,
- const char *text, va_list va)
+ enum ferr_kind kind, const char *pathname,
+ int errno_val, const char *text, va_list va)
{
struct ferr *error = pthread_getspecific(errkey);
if (!error) {
error = XCALLOC(MTYPE_ERRINFO, sizeof(*error));
- if (!error) {
- /* we're screwed */
- zlog_err("out of memory while allocating error info");
- raise(SIGSEGV);
- abort(); /* raise() can return, but raise(SIGSEGV) shall not */
- }
pthread_setspecific(errkey, error);
}
error->kind = kind;
error->unique_id = jhash(text, strlen(text),
- jhash(file, strlen(file), 0xd4ed0298));
+ jhash(file, strlen(file), 0xd4ed0298));
error->errno_val = errno_val;
if (pathname)
- snprintf(error->pathname, sizeof(error->pathname),
- "%s", pathname);
+ snprintf(error->pathname, sizeof(error->pathname), "%s",
+ pathname);
else
error->pathname[0] = '\0';
}
ferr_r ferr_set_internal(const char *file, int line, const char *func,
- enum ferr_kind kind, const char *text, ...)
+ enum ferr_kind kind, const char *text, ...)
{
ferr_r rv;
va_list va;
}
ferr_r ferr_set_internal_ext(const char *file, int line, const char *func,
- enum ferr_kind kind, const char *pathname, int errno_val,
- const char *text, ...)
+ enum ferr_kind kind, const char *pathname,
+ int errno_val, const char *text, ...)
{
ferr_r rv;
va_list va;
else {
replacepos[0] = '\0';
replacepos += sizeof(REPLACE) - 1;
- vty_out(vty, "%s%s%s\n",
- tmpmsg,
+ vty_out(vty, "%s%s%s\n", tmpmsg,
last_error ? last_error->message : "(no error?)",
replacepos);
}
}
-
projects / mirror_frr.git / blobdiff