#include "timeval.h"
#include "transaction.h"
#include "trigger.h"
-
-#define THIS_MODULE VLM_ovsdb_jsonrpc_server
#include "vlog.h"
+VLOG_DEFINE_THIS_MODULE(ovsdb_jsonrpc_server);
+
struct ovsdb_jsonrpc_remote;
struct ovsdb_jsonrpc_session;
static void ovsdb_jsonrpc_session_run_all(struct ovsdb_jsonrpc_remote *);
static void ovsdb_jsonrpc_session_wait_all(struct ovsdb_jsonrpc_remote *);
static void ovsdb_jsonrpc_session_close_all(struct ovsdb_jsonrpc_remote *);
+static void ovsdb_jsonrpc_session_reconnect_all(struct ovsdb_jsonrpc_remote *);
+static void ovsdb_jsonrpc_session_set_all_options(
+ struct ovsdb_jsonrpc_remote *, const struct ovsdb_jsonrpc_options *);
+static void ovsdb_jsonrpc_session_get_status(
+ const struct ovsdb_jsonrpc_remote *,
+ struct shash *);
/* Triggers. */
static void ovsdb_jsonrpc_trigger_create(struct ovsdb_jsonrpc_session *,
struct list sessions; /* List of "struct ovsdb_jsonrpc_session"s. */
};
-static void ovsdb_jsonrpc_server_add_remote(struct ovsdb_jsonrpc_server *,
- const char *name);
+static struct ovsdb_jsonrpc_remote *ovsdb_jsonrpc_server_add_remote(
+ struct ovsdb_jsonrpc_server *, const char *name);
static void ovsdb_jsonrpc_server_del_remote(struct shash_node *);
struct ovsdb_jsonrpc_server *
free(svr);
}
-/* Sets 'svr''s current set of remotes to the names in 'new_remotes'. The data
- * values in 'new_remotes' are ignored.
+struct ovsdb_jsonrpc_options *
+ovsdb_jsonrpc_default_options(void)
+{
+ struct ovsdb_jsonrpc_options *options = xzalloc(sizeof *options);
+ options->probe_interval = RECONNECT_DEFAULT_PROBE_INTERVAL;
+ options->max_backoff = RECONNECT_DEFAULT_MAX_BACKOFF;
+ return options;
+}
+
+/* Sets 'svr''s current set of remotes to the names in 'new_remotes', with
+ * options in the struct ovsdb_jsonrpc_options supplied as the data values.
*
* A remote is an active or passive stream connection method, e.g. "pssl:" or
* "tcp:1.2.3.4". */
}
}
SHASH_FOR_EACH (node, new_remotes) {
- if (!shash_find(&svr->remotes, node->name)) {
- ovsdb_jsonrpc_server_add_remote(svr, node->name);
+ const struct ovsdb_jsonrpc_options *options = node->data;
+ struct ovsdb_jsonrpc_remote *remote;
+
+ remote = shash_find_data(&svr->remotes, node->name);
+ if (!remote) {
+ remote = ovsdb_jsonrpc_server_add_remote(svr, node->name);
+ if (!remote) {
+ continue;
+ }
}
+
+ ovsdb_jsonrpc_session_set_all_options(remote, options);
}
}
-static void
+static struct ovsdb_jsonrpc_remote *
ovsdb_jsonrpc_server_add_remote(struct ovsdb_jsonrpc_server *svr,
const char *name)
{
struct pstream *listener;
int error;
- error = pstream_open(name, &listener);
+ error = jsonrpc_pstream_open(name, &listener);
if (error && error != EAFNOSUPPORT) {
VLOG_ERR_RL(&rl, "%s: listen failed: %s", name, strerror(error));
- return;
+ return NULL;
}
remote = xmalloc(sizeof *remote);
if (!listener) {
ovsdb_jsonrpc_session_create(remote, jsonrpc_session_open(name));
}
+ return remote;
}
static void
free(remote);
}
+void
+ovsdb_jsonrpc_server_get_remote_status(const struct ovsdb_jsonrpc_server *svr,
+ struct shash *statuses)
+{
+ struct shash_node *node;
+
+ shash_init(statuses);
+
+ SHASH_FOR_EACH (node, &svr->remotes) {
+ const struct ovsdb_jsonrpc_remote *remote = node->data;
+
+ ovsdb_jsonrpc_session_get_status(remote, statuses);
+ }
+}
+
+/* Forces all of the JSON-RPC sessions managed by 'svr' to disconnect and
+ * reconnect. */
+void
+ovsdb_jsonrpc_server_reconnect(struct ovsdb_jsonrpc_server *svr)
+{
+ struct shash_node *node;
+
+ SHASH_FOR_EACH (node, &svr->remotes) {
+ struct ovsdb_jsonrpc_remote *remote = node->data;
+
+ ovsdb_jsonrpc_session_reconnect_all(remote);
+ }
+}
+
void
ovsdb_jsonrpc_server_run(struct ovsdb_jsonrpc_server *svr)
{
static void ovsdb_jsonrpc_session_close(struct ovsdb_jsonrpc_session *);
static int ovsdb_jsonrpc_session_run(struct ovsdb_jsonrpc_session *);
static void ovsdb_jsonrpc_session_wait(struct ovsdb_jsonrpc_session *);
+static void ovsdb_jsonrpc_session_set_options(
+ struct ovsdb_jsonrpc_session *, const struct ovsdb_jsonrpc_options *);
static void ovsdb_jsonrpc_session_got_request(struct ovsdb_jsonrpc_session *,
struct jsonrpc_msg *);
static void ovsdb_jsonrpc_session_got_notify(struct ovsdb_jsonrpc_session *,
return jsonrpc_session_is_alive(s->js) ? 0 : ETIMEDOUT;
}
+static void
+ovsdb_jsonrpc_session_set_options(struct ovsdb_jsonrpc_session *session,
+ const struct ovsdb_jsonrpc_options *options)
+{
+ jsonrpc_session_set_max_backoff(session->js, options->max_backoff);
+ jsonrpc_session_set_probe_interval(session->js, options->probe_interval);
+}
+
static void
ovsdb_jsonrpc_session_run_all(struct ovsdb_jsonrpc_remote *remote)
{
struct ovsdb_jsonrpc_session *s, *next;
- LIST_FOR_EACH_SAFE (s, next, struct ovsdb_jsonrpc_session, node,
- &remote->sessions) {
+ LIST_FOR_EACH_SAFE (s, next, node, &remote->sessions) {
int error = ovsdb_jsonrpc_session_run(s);
if (error) {
ovsdb_jsonrpc_session_close(s);
{
struct ovsdb_jsonrpc_session *s;
- LIST_FOR_EACH (s, struct ovsdb_jsonrpc_session, node, &remote->sessions) {
+ LIST_FOR_EACH (s, node, &remote->sessions) {
ovsdb_jsonrpc_session_wait(s);
}
}
{
struct ovsdb_jsonrpc_session *s, *next;
- LIST_FOR_EACH_SAFE (s, next, struct ovsdb_jsonrpc_session, node,
- &remote->sessions) {
+ LIST_FOR_EACH_SAFE (s, next, node, &remote->sessions) {
ovsdb_jsonrpc_session_close(s);
}
}
+/* Forces all of the JSON-RPC sessions managed by 'remote' to disconnect and
+ * reconnect. */
+static void
+ovsdb_jsonrpc_session_reconnect_all(struct ovsdb_jsonrpc_remote *remote)
+{
+ struct ovsdb_jsonrpc_session *s, *next;
+
+ LIST_FOR_EACH_SAFE (s, next, node, &remote->sessions) {
+ jsonrpc_session_force_reconnect(s->js);
+ if (!jsonrpc_session_is_alive(s->js)) {
+ ovsdb_jsonrpc_session_close(s);
+ }
+ }
+}
+
+/* Sets the options for all of the JSON-RPC sessions managed by 'remote' to
+ * 'options'. */
+static void
+ovsdb_jsonrpc_session_set_all_options(
+ struct ovsdb_jsonrpc_remote *remote,
+ const struct ovsdb_jsonrpc_options *options)
+{
+ struct ovsdb_jsonrpc_session *s;
+
+ LIST_FOR_EACH (s, node, &remote->sessions) {
+ ovsdb_jsonrpc_session_set_options(s, options);
+ }
+}
+
+static void
+ovsdb_jsonrpc_session_get_status(const struct ovsdb_jsonrpc_remote *remote,
+ struct shash *shash)
+{
+ const struct ovsdb_jsonrpc_session *s;
+ const struct jsonrpc_session *js;
+ const char *name;
+ struct ovsdb_jsonrpc_remote_status *status;
+ struct reconnect_stats rstats;
+
+ /* We only look at the first session in the list. There should be only one
+ * node in the list for outbound connections. We don't track status for
+ * each individual inbound connection if someone configures the DB that
+ * way. Since outbound connections are the norm, this is fine. */
+ if (list_is_empty(&remote->sessions)) {
+ return;
+ }
+ s = CONTAINER_OF(remote->sessions.next, struct ovsdb_jsonrpc_session, node);
+ js = s->js;
+ if (!js) {
+ return;
+ }
+ name = jsonrpc_session_get_name(js);
+
+ status = xzalloc(sizeof *status);
+ shash_add(shash, name, status);
+
+ status->is_connected = jsonrpc_session_is_connected(js);
+ status->last_error = jsonrpc_session_get_status(js);
+
+ jsonrpc_session_get_reconnect_stats(js, &rstats);
+ status->state = rstats.state;
+ status->sec_since_connect = rstats.msec_since_connect == UINT_MAX
+ ? UINT_MAX : rstats.msec_since_connect / 1000;
+ status->sec_since_disconnect = rstats.msec_since_disconnect == UINT_MAX
+ ? UINT_MAX : rstats.msec_since_disconnect / 1000;
+
+ return;
+}
+
static const char *
get_db_name(const struct ovsdb_jsonrpc_session *s)
{
{
struct ovsdb_jsonrpc_trigger *t;
- HMAP_FOR_EACH_WITH_HASH (t, struct ovsdb_jsonrpc_trigger, hmap_node, hash,
- &s->triggers) {
+ HMAP_FOR_EACH_WITH_HASH (t, hmap_node, hash, &s->triggers) {
if (json_equal(t->id, id)) {
return t;
}
ovsdb_jsonrpc_trigger_complete_all(struct ovsdb_jsonrpc_session *s)
{
struct ovsdb_jsonrpc_trigger *t, *next;
- HMAP_FOR_EACH_SAFE (t, next, struct ovsdb_jsonrpc_trigger, hmap_node,
- &s->triggers) {
+ HMAP_FOR_EACH_SAFE (t, next, hmap_node, &s->triggers) {
ovsdb_jsonrpc_trigger_complete(t);
}
}
OJMS_MODIFY = 1 << 3 /* Modified rows. */
};
+/* A particular column being monitored. */
+struct ovsdb_jsonrpc_monitor_column {
+ const struct ovsdb_column *column;
+ enum ovsdb_jsonrpc_monitor_selection select;
+};
+
+/* A particular table being monitored. */
struct ovsdb_jsonrpc_monitor_table {
const struct ovsdb_table *table;
+
+ /* This is the union (bitwise-OR) of the 'select' values in all of the
+ * members of 'columns' below. */
enum ovsdb_jsonrpc_monitor_selection select;
- struct ovsdb_column_set columns;
+
+ /* Columns being monitored. */
+ struct ovsdb_jsonrpc_monitor_column *columns;
+ size_t n_columns;
};
+/* A collection of tables being monitored. */
struct ovsdb_jsonrpc_monitor {
struct ovsdb_replica replica;
struct ovsdb_jsonrpc_session *session;
{
struct ovsdb_jsonrpc_monitor *m;
- HMAP_FOR_EACH_WITH_HASH (m, struct ovsdb_jsonrpc_monitor, node,
- json_hash(monitor_id, 0), &s->monitors) {
+ HMAP_FOR_EACH_WITH_HASH (m, node, json_hash(monitor_id, 0), &s->monitors) {
if (json_equal(m->monitor_id, monitor_id)) {
return m;
}
return NULL;
}
+static void
+ovsdb_jsonrpc_add_monitor_column(struct ovsdb_jsonrpc_monitor_table *mt,
+ const struct ovsdb_column *column,
+ enum ovsdb_jsonrpc_monitor_selection select,
+ size_t *allocated_columns)
+{
+ struct ovsdb_jsonrpc_monitor_column *c;
+
+ if (mt->n_columns >= *allocated_columns) {
+ mt->columns = x2nrealloc(mt->columns, allocated_columns,
+ sizeof *mt->columns);
+ }
+
+ c = &mt->columns[mt->n_columns++];
+ c->column = column;
+ c->select = select;
+}
+
+static int
+compare_ovsdb_jsonrpc_monitor_column(const void *a_, const void *b_)
+{
+ const struct ovsdb_jsonrpc_monitor_column *a = a_;
+ const struct ovsdb_jsonrpc_monitor_column *b = b_;
+
+ return a->column < b->column ? -1 : a->column > b->column;
+}
+
+static struct ovsdb_error * WARN_UNUSED_RESULT
+ovsdb_jsonrpc_parse_monitor_request(struct ovsdb_jsonrpc_monitor_table *mt,
+ const struct json *monitor_request,
+ size_t *allocated_columns)
+{
+ const struct ovsdb_table_schema *ts = mt->table->schema;
+ enum ovsdb_jsonrpc_monitor_selection select;
+ const struct json *columns, *select_json;
+ struct ovsdb_parser parser;
+ struct ovsdb_error *error;
+
+ ovsdb_parser_init(&parser, monitor_request, "table %s", ts->name);
+ columns = ovsdb_parser_member(&parser, "columns", OP_ARRAY | OP_OPTIONAL);
+ select_json = ovsdb_parser_member(&parser, "select",
+ OP_OBJECT | OP_OPTIONAL);
+ error = ovsdb_parser_finish(&parser);
+ if (error) {
+ return error;
+ }
+
+ if (select_json) {
+ select = 0;
+ ovsdb_parser_init(&parser, select_json, "table %s select", ts->name);
+ if (parse_bool(&parser, "initial", true)) {
+ select |= OJMS_INITIAL;
+ }
+ if (parse_bool(&parser, "insert", true)) {
+ select |= OJMS_INSERT;
+ }
+ if (parse_bool(&parser, "delete", true)) {
+ select |= OJMS_DELETE;
+ }
+ if (parse_bool(&parser, "modify", true)) {
+ select |= OJMS_MODIFY;
+ }
+ error = ovsdb_parser_finish(&parser);
+ if (error) {
+ return error;
+ }
+ } else {
+ select = OJMS_INITIAL | OJMS_INSERT | OJMS_DELETE | OJMS_MODIFY;
+ }
+ mt->select |= select;
+
+ if (columns) {
+ size_t i;
+
+ if (columns->type != JSON_ARRAY) {
+ return ovsdb_syntax_error(columns, NULL,
+ "array of column names expected");
+ }
+
+ for (i = 0; i < columns->u.array.n; i++) {
+ const struct ovsdb_column *column;
+ const char *s;
+
+ if (columns->u.array.elems[i]->type != JSON_STRING) {
+ return ovsdb_syntax_error(columns, NULL,
+ "array of column names expected");
+ }
+
+ s = columns->u.array.elems[i]->u.string;
+ column = shash_find_data(&mt->table->schema->columns, s);
+ if (!column) {
+ return ovsdb_syntax_error(columns, NULL, "%s is not a valid "
+ "column name", s);
+ }
+ ovsdb_jsonrpc_add_monitor_column(mt, column, select,
+ allocated_columns);
+ }
+ } else {
+ struct shash_node *node;
+
+ SHASH_FOR_EACH (node, &ts->columns) {
+ const struct ovsdb_column *column = node->data;
+ if (column->index != OVSDB_COL_UUID) {
+ ovsdb_jsonrpc_add_monitor_column(mt, column, select,
+ allocated_columns);
+ }
+ }
+ }
+
+ return NULL;
+}
+
static struct json *
ovsdb_jsonrpc_monitor_create(struct ovsdb_jsonrpc_session *s,
struct json *params)
SHASH_FOR_EACH (node, json_object(monitor_requests)) {
const struct ovsdb_table *table;
struct ovsdb_jsonrpc_monitor_table *mt;
- const struct json *columns_json, *select_json;
- struct ovsdb_parser parser;
+ size_t allocated_columns;
+ const struct json *mr_value;
+ size_t i;
table = ovsdb_get_table(s->remote->server->db, node->name);
if (!table) {
mt = xzalloc(sizeof *mt);
mt->table = table;
- mt->select = OJMS_INITIAL | OJMS_INSERT | OJMS_DELETE | OJMS_MODIFY;
- ovsdb_column_set_init(&mt->columns);
shash_add(&m->tables, table->schema->name, mt);
- ovsdb_parser_init(&parser, node->data, "table %s", node->name);
- columns_json = ovsdb_parser_member(&parser, "columns",
- OP_ARRAY | OP_OPTIONAL);
- select_json = ovsdb_parser_member(&parser, "select",
- OP_OBJECT | OP_OPTIONAL);
- error = ovsdb_parser_finish(&parser);
- if (error) {
- goto error;
- }
-
- if (columns_json) {
- error = ovsdb_column_set_from_json(columns_json, table,
- &mt->columns);
- if (error) {
- goto error;
+ /* Parse columns. */
+ mr_value = node->data;
+ allocated_columns = 0;
+ if (mr_value->type == JSON_ARRAY) {
+ const struct json_array *array = &mr_value->u.array;
+
+ for (i = 0; i < array->n; i++) {
+ error = ovsdb_jsonrpc_parse_monitor_request(
+ mt, array->elems[i], &allocated_columns);
+ if (error) {
+ goto error;
+ }
}
} else {
- struct shash_node *node;
-
- SHASH_FOR_EACH (node, &table->schema->columns) {
- const struct ovsdb_column *column = node->data;
- if (column->index != OVSDB_COL_UUID) {
- ovsdb_column_set_add(&mt->columns, column);
- }
+ error = ovsdb_jsonrpc_parse_monitor_request(
+ mt, mr_value, &allocated_columns);
+ if (error) {
+ goto error;
}
}
- if (select_json) {
- mt->select = 0;
- ovsdb_parser_init(&parser, select_json, "table %s select",
- table->schema->name);
- if (parse_bool(&parser, "initial", true)) {
- mt->select |= OJMS_INITIAL;
- }
- if (parse_bool(&parser, "insert", true)) {
- mt->select |= OJMS_INSERT;
- }
- if (parse_bool(&parser, "delete", true)) {
- mt->select |= OJMS_DELETE;
- }
- if (parse_bool(&parser, "modify", true)) {
- mt->select |= OJMS_MODIFY;
- }
- error = ovsdb_parser_finish(&parser);
- if (error) {
+ /* Check for duplicate columns. */
+ qsort(mt->columns, mt->n_columns, sizeof *mt->columns,
+ compare_ovsdb_jsonrpc_monitor_column);
+ for (i = 1; i < mt->n_columns; i++) {
+ if (mt->columns[i].column == mt->columns[i - 1].column) {
+ error = ovsdb_syntax_error(mr_value, NULL, "column %s "
+ "mentioned more than once",
+ mt->columns[i].column->name);
goto error;
}
}
{
struct ovsdb_jsonrpc_monitor *m, *next;
- HMAP_FOR_EACH_SAFE (m, next,
- struct ovsdb_jsonrpc_monitor, node, &s->monitors) {
+ HMAP_FOR_EACH_SAFE (m, next, node, &s->monitors) {
ovsdb_remove_replica(s->remote->server->db, &m->replica);
}
}
struct json *table_json; /* JSON for table's transaction. */
};
+static bool
+any_reportable_change(const struct ovsdb_jsonrpc_monitor_table *mt,
+ const unsigned long int *changed)
+{
+ size_t i;
+
+ for (i = 0; i < mt->n_columns; i++) {
+ const struct ovsdb_jsonrpc_monitor_column *c = &mt->columns[i];
+ unsigned int idx = c->column->index;
+
+ if (c->select & OJMS_MODIFY && bitmap_is_set(changed, idx)) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
static bool
ovsdb_jsonrpc_monitor_change_cb(const struct ovsdb_row *old,
const struct ovsdb_row *new,
struct json *old_json, *new_json;
struct json *row_json;
char uuid[UUID_LEN + 1];
- int n_changed;
size_t i;
if (!aux->mt || table != aux->mt->table) {
return true;
}
+ if (type == OJMS_MODIFY && !any_reportable_change(aux->mt, changed)) {
+ /* Nothing of interest changed. */
+ return true;
+ }
+
old_json = new_json = NULL;
- n_changed = 0;
- for (i = 0; i < aux->mt->columns.n_columns; i++) {
- const struct ovsdb_column *column = aux->mt->columns.columns[i];
- unsigned int idx = column->index;
- bool column_changed = false;
-
- if (type == OJMS_MODIFY) {
- column_changed = bitmap_is_set(changed, idx);
- n_changed += column_changed;
- }
- if (column_changed || type == OJMS_DELETE) {
- if (!old_json) {
- old_json = json_object_create();
- }
+ if (type & (OJMS_DELETE | OJMS_MODIFY)) {
+ old_json = json_object_create();
+ }
+ if (type & (OJMS_INITIAL | OJMS_INSERT | OJMS_MODIFY)) {
+ new_json = json_object_create();
+ }
+ for (i = 0; i < aux->mt->n_columns; i++) {
+ const struct ovsdb_jsonrpc_monitor_column *c = &aux->mt->columns[i];
+ const struct ovsdb_column *column = c->column;
+ unsigned int idx = c->column->index;
+
+ if (!(type & c->select)) {
+ /* We don't care about this type of change for this particular
+ * column (but we will care about it for some other column). */
+ continue;
+ }
+
+ if ((type == OJMS_MODIFY && bitmap_is_set(changed, idx))
+ || type == OJMS_DELETE) {
json_object_put(old_json, column->name,
ovsdb_datum_to_json(&old->fields[idx],
&column->type));
}
if (type & (OJMS_INITIAL | OJMS_INSERT | OJMS_MODIFY)) {
- if (!new_json) {
- new_json = json_object_create();
- }
json_object_put(new_json, column->name,
ovsdb_datum_to_json(&new->fields[idx],
&column->type));
}
}
- if ((type == OJMS_MODIFY && !n_changed) || (!old_json && !new_json)) {
- /* No reportable changes. */
- json_destroy(old_json);
- json_destroy(new_json);
- return true;
- }
/* Create JSON object for transaction overall. */
if (!aux->json) {
if (mt->select & OJMS_INITIAL) {
struct ovsdb_row *row;
- HMAP_FOR_EACH (row, struct ovsdb_row, hmap_node,
- &mt->table->rows) {
+ HMAP_FOR_EACH (row, hmap_node, &mt->table->rows) {
ovsdb_jsonrpc_monitor_change_cb(NULL, row, NULL, &aux);
}
}
json_destroy(m->monitor_id);
SHASH_FOR_EACH (node, &m->tables) {
struct ovsdb_jsonrpc_monitor_table *mt = node->data;
- ovsdb_column_set_destroy(&mt->columns);
+ free(mt->columns);
free(mt);
}
shash_destroy(&m->tables);
git://git.onelab.eu / sliver-openvswitch.git / blobdiff