/*
* from_client_commit
* Handle an incoming commit message from a client.
* XXX: If commit succeeds and snapshot/startup fails, we have strange state:
* the commit has succeeded but an error message is returned.
*/
int
from_client_commit(clicon_handle h,
int s,
struct clicon_msg *msg,
const char *label)
{
char *candidate, *running;
uint32_t snapshot, startup;
int retval = -1;
char *snapshot_0;
if (clicon_msg_commit_decode(msg, &candidate, &running,
&snapshot, &startup, label) < 0)
goto err;
if (candidate_commit(h, candidate, running) < 0){
clicon_debug(1, "Commit %s failed", candidate);
retval = 0; /* We ignore errors from commit, but maybe
we should fail on fatal errors? */
goto err;
}
clicon_debug(1, "Commit %s", candidate);
if (snapshot && config_snapshot(clicon_dbspec_key(h), running, clicon_archive_dir(h)) < 0)
goto err;
if (startup){
snapshot_0 = chunk_sprintf(__FUNCTION__, "%s/0",
clicon_archive_dir(h));
if (file_cp(snapshot_0, clicon_startup_config(h)) < 0){
clicon_err(OE_PROTO, errno, "%s: Error when creating startup",
__FUNCTION__);
goto err;
}
}
retval = 0;
if (send_msg_ok(s) < 0)
goto done;
goto done;
err:
/* XXX: more elaborate errstring? */
if (send_msg_err(s, clicon_errno, clicon_suberrno, "%s", clicon_err_reason) < 0)
retval = -1;
done:
unchunk_group(__FUNCTION__);
return retval; /* may be zero if we ignoring errors from commit */
} /* from_client_commit */
/*! Reset running and start in failsafe mode. If no failsafe then quit.
Typically done when startup status is not OK so
failsafe ----------------------+
reset \ commit
running |-------+---------------> RUNNING FAILSAFE
*/
int
startup_failsafe(clicon_handle h)
{
int retval = -1;
int ret;
char *db = "failsafe";
cbuf *cbret = NULL;
if ((cbret = cbuf_new()) == NULL){
clicon_err(OE_XML, errno, "cbuf_new");
goto done;
}
if ((ret = xmldb_exists(h, db)) < 0)
goto done;
if (ret == 0){ /* No it does not exist, fail */
clicon_err(OE_DB, 0, "Startup failed and no Failsafe database found, exiting");
goto done;
}
/* Copy original running to tmp as backup (restore if error) */
if (xmldb_copy(h, "running", "tmp") < 0)
goto done;
if (startup_db_reset(h, "running") < 0)
goto done;
ret = candidate_commit(h, db, cbret);
if (ret != 1)
if (xmldb_copy(h, "tmp", "running") < 0)
goto done;
if (ret < 0)
goto done;
if (ret == 0){
clicon_err(OE_DB, 0, "Startup failed, Failsafe database validation failed %s", cbuf_get(cbret));
goto done;
}
clicon_log(LOG_NOTICE, "Startup failed, Failsafe database loaded ");
retval = 0;
done:
if (cbret)
cbuf_free(cbret);
return retval;
}
