-pre_cmd_list(struct vsctl_context *ctx)
-{
- const char *column_names = shash_find_data(&ctx->options, "--columns");
- const char *table_name = ctx->argv[1];
- const struct vsctl_table_class *table;
-
- table = pre_get_table(ctx, table_name);
- pre_list_columns(ctx, table, column_names);
-}
-
-static struct table *
-list_make_table(const struct ovsdb_idl_column **columns, size_t n_columns)
-{
- struct table *out;
- size_t i;
-
- out = xmalloc(sizeof *out);
- table_init(out);
-
- for (i = 0; i < n_columns; i++) {
- const struct ovsdb_idl_column *column = columns[i];
- const char *column_name = column ? column->name : "_uuid";
-
- table_add_column(out, "%s", column_name);
- }
-
- return out;
-}
-
-static void
-list_record(const struct ovsdb_idl_row *row,
- const struct ovsdb_idl_column **columns, size_t n_columns,
- struct table *out)
-{
- size_t i;
-
- table_add_row(out);
- for (i = 0; i < n_columns; i++) {
- const struct ovsdb_idl_column *column = columns[i];
- struct cell *cell = table_add_cell(out);
-
- if (!column) {
- struct ovsdb_datum datum;
- union ovsdb_atom atom;
-
- atom.uuid = row->uuid;
-
- datum.keys = &atom;
- datum.values = NULL;
- datum.n = 1;
-
- cell->json = ovsdb_datum_to_json(&datum, &ovsdb_type_uuid);
- cell->type = &ovsdb_type_uuid;
- } else {
- const struct ovsdb_datum *datum = ovsdb_idl_read(row, column);
-
- cell->json = ovsdb_datum_to_json(datum, &column->type);
- cell->type = &column->type;
- }
- }
-}
-
-static void
-cmd_list(struct vsctl_context *ctx)
-{
- const char *column_names = shash_find_data(&ctx->options, "--columns");
- const struct ovsdb_idl_column **columns;
- const char *table_name = ctx->argv[1];
- const struct vsctl_table_class *table;
- struct table *out;
- size_t n_columns;
- int i;
-
- table = get_table(table_name);
- parse_column_names(column_names, table, &columns, &n_columns);
- out = ctx->table = list_make_table(columns, n_columns);
- if (ctx->argc > 2) {
- for (i = 2; i < ctx->argc; i++) {
- list_record(must_get_row(ctx, table, ctx->argv[i]),
- columns, n_columns, out);
- }
- } else {
- const struct ovsdb_idl_row *row;
- bool first;
-
- for (row = ovsdb_idl_first_row(ctx->idl, table->class), first = true;
- row != NULL;
- row = ovsdb_idl_next_row(row), first = false) {
- list_record(row, columns, n_columns, out);
- }
- }
- free(columns);
-}
-
-static void
-pre_cmd_find(struct vsctl_context *ctx)
-{
- const char *column_names = shash_find_data(&ctx->options, "--columns");
- const char *table_name = ctx->argv[1];
- const struct vsctl_table_class *table;
- int i;
-
- table = pre_get_table(ctx, table_name);
- pre_list_columns(ctx, table, column_names);
- for (i = 2; i < ctx->argc; i++) {
- pre_parse_column_key_value(ctx, ctx->argv[i], table);
- }
-}
-
-static void
-cmd_find(struct vsctl_context *ctx)
-{
- const char *column_names = shash_find_data(&ctx->options, "--columns");
- const struct ovsdb_idl_column **columns;
- const char *table_name = ctx->argv[1];
- const struct vsctl_table_class *table;
- const struct ovsdb_idl_row *row;
- struct table *out;
- size_t n_columns;
-
- table = get_table(table_name);
- parse_column_names(column_names, table, &columns, &n_columns);
- out = ctx->table = list_make_table(columns, n_columns);
- for (row = ovsdb_idl_first_row(ctx->idl, table->class); row;
- row = ovsdb_idl_next_row(row)) {
- int i;
-
- for (i = 2; i < ctx->argc; i++) {
- if (!is_condition_satisfied(table, row, ctx->argv[i],
- ctx->symtab)) {
- goto next_row;
- }
- }
- list_record(row, columns, n_columns, out);
-
- next_row: ;
- }
- free(columns);
-}
-
-static void
-pre_cmd_set(struct vsctl_context *ctx)
-{
- const char *table_name = ctx->argv[1];
- const struct vsctl_table_class *table;
- int i;
-
- table = pre_get_table(ctx, table_name);
- for (i = 3; i < ctx->argc; i++) {
- pre_parse_column_key_value(ctx, ctx->argv[i], table);
- }
-}
-
-static void
-set_column(const struct vsctl_table_class *table,
- const struct ovsdb_idl_row *row, const char *arg,
- struct ovsdb_symbol_table *symtab)
-{
- const struct ovsdb_idl_column *column;
- char *key_string, *value_string;
- char *error;
-
- error = parse_column_key_value(arg, table, &column, &key_string,
- NULL, NULL, 0, &value_string);
- die_if_error(error);
- if (!value_string) {
- vsctl_fatal("%s: missing value", arg);
- }
-
- if (key_string) {
- union ovsdb_atom key, value;
- struct ovsdb_datum datum;
-
- if (column->type.value.type == OVSDB_TYPE_VOID) {
- vsctl_fatal("cannot specify key to set for non-map column %s",
- column->name);
- }
-
- die_if_error(ovsdb_atom_from_string(&key, &column->type.key,
- key_string, symtab));
- die_if_error(ovsdb_atom_from_string(&value, &column->type.value,
- value_string, symtab));
-
- ovsdb_datum_init_empty(&datum);
- ovsdb_datum_add_unsafe(&datum, &key, &value, &column->type);
-
- ovsdb_atom_destroy(&key, column->type.key.type);
- ovsdb_atom_destroy(&value, column->type.value.type);
-
- ovsdb_datum_union(&datum, ovsdb_idl_read(row, column),
- &column->type, false);
- ovsdb_idl_txn_write(row, column, &datum);
- } else {
- struct ovsdb_datum datum;
-
- die_if_error(ovsdb_datum_from_string(&datum, &column->type,
- value_string, symtab));
- ovsdb_idl_txn_write(row, column, &datum);
- }
-
- free(key_string);
- free(value_string);
-}
-
-static void
-cmd_set(struct vsctl_context *ctx)
-{
- const char *table_name = ctx->argv[1];
- const char *record_id = ctx->argv[2];
- const struct vsctl_table_class *table;
- const struct ovsdb_idl_row *row;
- int i;
-
- table = get_table(table_name);
- row = must_get_row(ctx, table, record_id);
- for (i = 3; i < ctx->argc; i++) {
- set_column(table, row, ctx->argv[i], ctx->symtab);
- }
-}
-
-static void
-pre_cmd_add(struct vsctl_context *ctx)
-{
- const char *table_name = ctx->argv[1];
- const char *column_name = ctx->argv[3];
- const struct vsctl_table_class *table;
- const struct ovsdb_idl_column *column;
-
- table = pre_get_table(ctx, table_name);
- pre_get_column(ctx, table, column_name, &column);
-}
-
-static void
-cmd_add(struct vsctl_context *ctx)
-{
- const char *table_name = ctx->argv[1];
- const char *record_id = ctx->argv[2];
- const char *column_name = ctx->argv[3];
- const struct vsctl_table_class *table;
- const struct ovsdb_idl_column *column;
- const struct ovsdb_idl_row *row;
- const struct ovsdb_type *type;
- struct ovsdb_datum old;
- int i;
-
- table = get_table(table_name);
- row = must_get_row(ctx, table, record_id);
- die_if_error(get_column(table, column_name, &column));
-
- type = &column->type;
- ovsdb_datum_clone(&old, ovsdb_idl_read(row, column), &column->type);
- for (i = 4; i < ctx->argc; i++) {
- struct ovsdb_type add_type;
- struct ovsdb_datum add;
-
- add_type = *type;
- add_type.n_min = 1;
- add_type.n_max = UINT_MAX;
- die_if_error(ovsdb_datum_from_string(&add, &add_type, ctx->argv[i],
- ctx->symtab));
- ovsdb_datum_union(&old, &add, type, false);
- ovsdb_datum_destroy(&add, type);
- }
- if (old.n > type->n_max) {
- vsctl_fatal("\"add\" operation would put %u %s in column %s of "
- "table %s but the maximum number is %u",
- old.n,
- type->value.type == OVSDB_TYPE_VOID ? "values" : "pairs",
- column->name, table->class->name, type->n_max);
- }
- ovsdb_idl_txn_verify(row, column);
- ovsdb_idl_txn_write(row, column, &old);
-}
-
-static void
-pre_cmd_remove(struct vsctl_context *ctx)
-{
- const char *table_name = ctx->argv[1];
- const char *column_name = ctx->argv[3];
- const struct vsctl_table_class *table;
- const struct ovsdb_idl_column *column;
-
- table = pre_get_table(ctx, table_name);
- pre_get_column(ctx, table, column_name, &column);
-}
-
-static void
-cmd_remove(struct vsctl_context *ctx)
-{
- const char *table_name = ctx->argv[1];
- const char *record_id = ctx->argv[2];
- const char *column_name = ctx->argv[3];
- const struct vsctl_table_class *table;
- const struct ovsdb_idl_column *column;
- const struct ovsdb_idl_row *row;
- const struct ovsdb_type *type;
- struct ovsdb_datum old;
- int i;
-
- table = get_table(table_name);
- row = must_get_row(ctx, table, record_id);
- die_if_error(get_column(table, column_name, &column));
-
- type = &column->type;
- ovsdb_datum_clone(&old, ovsdb_idl_read(row, column), &column->type);
- for (i = 4; i < ctx->argc; i++) {
- struct ovsdb_type rm_type;
- struct ovsdb_datum rm;
- char *error;
-
- rm_type = *type;
- rm_type.n_min = 1;
- rm_type.n_max = UINT_MAX;
- error = ovsdb_datum_from_string(&rm, &rm_type,
- ctx->argv[i], ctx->symtab);
- if (error && ovsdb_type_is_map(&rm_type)) {
- free(error);
- rm_type.value.type = OVSDB_TYPE_VOID;
- die_if_error(ovsdb_datum_from_string(&rm, &rm_type,
- ctx->argv[i], ctx->symtab));
- }
- ovsdb_datum_subtract(&old, type, &rm, &rm_type);
- ovsdb_datum_destroy(&rm, &rm_type);
- }
- if (old.n < type->n_min) {
- vsctl_fatal("\"remove\" operation would put %u %s in column %s of "
- "table %s but the minimum number is %u",
- old.n,
- type->value.type == OVSDB_TYPE_VOID ? "values" : "pairs",
- column->name, table->class->name, type->n_min);
- }
- ovsdb_idl_txn_verify(row, column);
- ovsdb_idl_txn_write(row, column, &old);
-}
-
-static void
-pre_cmd_clear(struct vsctl_context *ctx)
-{
- const char *table_name = ctx->argv[1];
- const struct vsctl_table_class *table;
- int i;
-
- table = pre_get_table(ctx, table_name);
- for (i = 3; i < ctx->argc; i++) {
- const struct ovsdb_idl_column *column;
-
- pre_get_column(ctx, table, ctx->argv[i], &column);
- }
-}
-
-static void
-cmd_clear(struct vsctl_context *ctx)
-{
- const char *table_name = ctx->argv[1];
- const char *record_id = ctx->argv[2];
- const struct vsctl_table_class *table;
- const struct ovsdb_idl_row *row;
- int i;
-
- table = get_table(table_name);
- row = must_get_row(ctx, table, record_id);
- for (i = 3; i < ctx->argc; i++) {
- const struct ovsdb_idl_column *column;
- const struct ovsdb_type *type;
- struct ovsdb_datum datum;
-
- die_if_error(get_column(table, ctx->argv[i], &column));
-
- type = &column->type;
- if (type->n_min > 0) {
- vsctl_fatal("\"clear\" operation cannot be applied to column %s "
- "of table %s, which is not allowed to be empty",
- column->name, table->class->name);
- }
-
- ovsdb_datum_init_empty(&datum);
- ovsdb_idl_txn_write(row, column, &datum);
- }
-}
-
-static void
-cmd_create(struct vsctl_context *ctx)
-{
- const char *id = shash_find_data(&ctx->options, "--id");
- const char *table_name = ctx->argv[1];
- const struct vsctl_table_class *table;
- const struct ovsdb_idl_row *row;
- const struct uuid *uuid;
- int i;
-
- uuid = id ? create_symbol(ctx->symtab, id, NULL) : NULL;
-
- table = get_table(table_name);
- row = ovsdb_idl_txn_insert(ctx->txn, table->class, uuid);
- for (i = 2; i < ctx->argc; i++) {
- set_column(table, row, ctx->argv[i], ctx->symtab);
- }
- ds_put_format(&ctx->output, UUID_FMT, UUID_ARGS(&row->uuid));
-}
-
-/* This function may be used as the 'postprocess' function for commands that
- * insert new rows into the database. It expects that the command's 'run'
- * function prints the UUID reported by ovsdb_idl_txn_insert() as the command's
- * sole output. It replaces that output by the row's permanent UUID assigned
- * by the database server and appends a new-line.
- *
- * Currently we use this only for "create", because the higher-level commands
- * are supposed to be independent of the actual structure of the vswitch
- * configuration. */
-static void
-post_create(struct vsctl_context *ctx)
-{
- const struct uuid *real;
- struct uuid dummy;
-
- if (!uuid_from_string(&dummy, ds_cstr(&ctx->output))) {
- NOT_REACHED();
- }
- real = ovsdb_idl_txn_get_insert_uuid(ctx->txn, &dummy);
- if (real) {
- ds_clear(&ctx->output);
- ds_put_format(&ctx->output, UUID_FMT, UUID_ARGS(real));
- }
- ds_put_char(&ctx->output, '\n');
-}
-
-static void
-pre_cmd_destroy(struct vsctl_context *ctx)
-{
- const char *table_name = ctx->argv[1];
-
- pre_get_table(ctx, table_name);
-}
-
-static void
-cmd_destroy(struct vsctl_context *ctx)
-{
- bool must_exist = !shash_find(&ctx->options, "--if-exists");
- const char *table_name = ctx->argv[1];
- const struct vsctl_table_class *table;
- int i;
-
- table = get_table(table_name);
- for (i = 2; i < ctx->argc; i++) {
- const struct ovsdb_idl_row *row;
-
- row = (must_exist ? must_get_row : get_row)(ctx, table, ctx->argv[i]);
- if (row) {
- ovsdb_idl_txn_delete(row);
- }
- }
-}
-
-static bool
-is_condition_satisfied(const struct vsctl_table_class *table,
- const struct ovsdb_idl_row *row, const char *arg,
- struct ovsdb_symbol_table *symtab)
-{
- static const char *operators[] = {
- "=", "!=", "<", ">", "<=", ">="
- };
-
- const struct ovsdb_idl_column *column;
- const struct ovsdb_datum *have_datum;
- char *key_string, *value_string;
- const char *operator;
- unsigned int idx;
- char *error;
- int cmp = 0;
-
- error = parse_column_key_value(arg, table, &column, &key_string,
- &operator, operators, ARRAY_SIZE(operators),
- &value_string);
- die_if_error(error);
- if (!value_string) {
- vsctl_fatal("%s: missing value", arg);
- }
-
- have_datum = ovsdb_idl_read(row, column);
- if (key_string) {
- union ovsdb_atom want_key, want_value;
-
- if (column->type.value.type == OVSDB_TYPE_VOID) {
- vsctl_fatal("cannot specify key to check for non-map column %s",
- column->name);
- }
-
- die_if_error(ovsdb_atom_from_string(&want_key, &column->type.key,
- key_string, symtab));
- die_if_error(ovsdb_atom_from_string(&want_value, &column->type.value,
- value_string, symtab));
-
- idx = ovsdb_datum_find_key(have_datum,
- &want_key, column->type.key.type);
- if (idx != UINT_MAX) {
- cmp = ovsdb_atom_compare_3way(&have_datum->values[idx],
- &want_value,
- column->type.value.type);
- }
-
- ovsdb_atom_destroy(&want_key, column->type.key.type);
- ovsdb_atom_destroy(&want_value, column->type.value.type);
- } else {
- struct ovsdb_datum want_datum;
-
- die_if_error(ovsdb_datum_from_string(&want_datum, &column->type,
- value_string, symtab));
- idx = 0;
- cmp = ovsdb_datum_compare_3way(have_datum, &want_datum,
- &column->type);
- ovsdb_datum_destroy(&want_datum, &column->type);
- }
-
- free(key_string);
- free(value_string);
-
- return (idx == UINT_MAX ? false
- : !strcmp(operator, "=") ? cmp == 0
- : !strcmp(operator, "!=") ? cmp != 0
- : !strcmp(operator, "<") ? cmp < 0
- : !strcmp(operator, ">") ? cmp > 0
- : !strcmp(operator, "<=") ? cmp <= 0
- : !strcmp(operator, ">=") ? cmp >= 0
- : (abort(), 0));
-}
-
-static void
-pre_cmd_wait_until(struct vsctl_context *ctx)
-{
- const char *table_name = ctx->argv[1];
- const struct vsctl_table_class *table;
- int i;
-
- table = pre_get_table(ctx, table_name);
-
- for (i = 3; i < ctx->argc; i++) {
- pre_parse_column_key_value(ctx, ctx->argv[i], table);
- }
-}
-
-static void
-cmd_wait_until(struct vsctl_context *ctx)
-{
- const char *table_name = ctx->argv[1];
- const char *record_id = ctx->argv[2];
- const struct vsctl_table_class *table;
- const struct ovsdb_idl_row *row;
- int i;
-
- table = get_table(table_name);
-
- row = get_row(ctx, table, record_id);
- if (!row) {
- ctx->try_again = true;
- return;
- }
-
- for (i = 3; i < ctx->argc; i++) {
- if (!is_condition_satisfied(table, row, ctx->argv[i], ctx->symtab)) {
- ctx->try_again = true;
- return;
- }
- }
-}
-\f
-static struct json *
-where_uuid_equals(const struct uuid *uuid)
-{
- return
- json_array_create_1(
- json_array_create_3(
- json_string_create("_uuid"),
- json_string_create("=="),
- json_array_create_2(
- json_string_create("uuid"),
- json_string_create_nocopy(
- xasprintf(UUID_FMT, UUID_ARGS(uuid))))));
-}
-
-static void
-vsctl_context_init(struct vsctl_context *ctx, struct vsctl_command *command,
- struct ovsdb_idl *idl, struct ovsdb_idl_txn *txn,
- const struct ovsrec_open_vswitch *ovs,
- struct ovsdb_symbol_table *symtab)
-{
- ctx->argc = command->argc;
- ctx->argv = command->argv;
- ctx->options = command->options;
-
- ds_swap(&ctx->output, &command->output);
- ctx->table = command->table;
- ctx->idl = idl;
- ctx->txn = txn;
- ctx->ovs = ovs;
- ctx->symtab = symtab;
- ctx->verified_ports = false;
-
- ctx->try_again = false;
-}
-
-static void
-vsctl_context_done(struct vsctl_context *ctx, struct vsctl_command *command)
-{
- ds_swap(&ctx->output, &command->output);
- command->table = ctx->table;
-}
-
-static void
-run_prerequisites(struct vsctl_command *commands, size_t n_commands,
- struct ovsdb_idl *idl)
-{
- struct vsctl_command *c;
-
- ovsdb_idl_add_table(idl, &ovsrec_table_open_vswitch);
- if (wait_for_reload) {
- ovsdb_idl_add_column(idl, &ovsrec_open_vswitch_col_cur_cfg);
- }
- for (c = commands; c < &commands[n_commands]; c++) {
- if (c->syntax->prerequisites) {
- struct vsctl_context ctx;
-
- ds_init(&c->output);
- c->table = NULL;
-
- vsctl_context_init(&ctx, c, idl, NULL, NULL, NULL);
- (c->syntax->prerequisites)(&ctx);
- vsctl_context_done(&ctx, c);
-
- assert(!c->output.string);
- assert(!c->table);
- }
- }
-}
-
-static void
-do_vsctl(const char *args, struct vsctl_command *commands, size_t n_commands,