-
- if (!id->name_column) {
- if (strcmp(record_id, ".")) {
- return NULL;
- }
- referrer = ovsdb_idl_first_row(ctx->idl, id->table);
- if (!referrer || ovsdb_idl_next_row(referrer)) {
- return NULL;
- }
- } else {
- const struct ovsdb_idl_row *row;
-
- referrer = NULL;
- for (row = ovsdb_idl_first_row(ctx->idl, id->table);
- row != NULL;
- row = ovsdb_idl_next_row(row))
- {
- const struct ovsdb_datum *name;
-
- name = ovsdb_idl_get(row, id->name_column,
- OVSDB_TYPE_STRING, OVSDB_TYPE_VOID);
- if (name->n == 1 && !strcmp(name->keys[0].string, record_id)) {
- if (referrer) {
- vsctl_fatal("multiple rows in %s match \"%s\"",
- table->class->name, record_id);
- }
- referrer = row;
- }
- }
- }
- if (!referrer) {
- return NULL;
- }
-
- final = NULL;
- if (id->uuid_column) {
- const struct ovsdb_datum *uuid;
-
- ovsdb_idl_txn_verify(referrer, id->uuid_column);
- uuid = ovsdb_idl_get(referrer, id->uuid_column,
- OVSDB_TYPE_UUID, OVSDB_TYPE_VOID);
- if (uuid->n == 1) {
- final = ovsdb_idl_get_row_for_uuid(ctx->idl, table->class,
- &uuid->keys[0].uuid);
- }
- } else {
- final = referrer;
- }
-
- return final;
-}
-
-static const struct ovsdb_idl_row *
-get_row (struct vsctl_context *ctx,
- const struct vsctl_table_class *table, const char *record_id)
-{
- const struct ovsdb_idl_row *row;
- struct uuid uuid;
-
- if (uuid_from_string(&uuid, record_id)) {
- row = ovsdb_idl_get_row_for_uuid(ctx->idl, table->class, &uuid);
- } else {
- int i;
-
- for (i = 0; i < ARRAY_SIZE(table->row_ids); i++) {
- row = get_row_by_id(ctx, table, &table->row_ids[i], record_id);
- if (row) {
- break;
- }
- }
- }
- return row;
-}
-
-static const struct ovsdb_idl_row *
-must_get_row(struct vsctl_context *ctx,
- const struct vsctl_table_class *table, const char *record_id)
-{
- const struct ovsdb_idl_row *row = get_row(ctx, table, record_id);
- if (!row) {
- vsctl_fatal("no row \"%s\" in table %s",
- record_id, table->class->name);
- }
- return row;
-}
-
-static char *
-get_column(const struct vsctl_table_class *table, const char *column_name,
- const struct ovsdb_idl_column **columnp)
-{
- const struct ovsdb_idl_column *best_match = NULL;
- unsigned int best_score = 0;
- size_t i;
-
- for (i = 0; i < table->class->n_columns; i++) {
- const struct ovsdb_idl_column *column = &table->class->columns[i];
- unsigned int score = score_partial_match(column->name, column_name);
- if (score > best_score) {
- best_match = column;
- best_score = score;
- } else if (score == best_score) {
- best_match = NULL;
- }
- }
-
- *columnp = best_match;
- if (best_match) {
- return NULL;
- } else if (best_score) {
- return xasprintf("%s contains more than one column whose name "
- "matches \"%s\"", table->class->name, column_name);
- } else {
- return xasprintf("%s does not contain a column whose name matches "
- "\"%s\"", table->class->name, column_name);
- }
-}
-
-static struct ovsdb_symbol *
-create_symbol(struct ovsdb_symbol_table *symtab, const char *id, bool *newp)
-{
- struct ovsdb_symbol *symbol;
-
- if (id[0] != '@') {
- vsctl_fatal("row id \"%s\" does not begin with \"@\"", id);
- }
-
- if (newp) {
- *newp = ovsdb_symbol_table_get(symtab, id) == NULL;
- }
-
- symbol = ovsdb_symbol_table_insert(symtab, id);
- if (symbol->created) {
- vsctl_fatal("row id \"%s\" may only be specified on one --id option",
- id);
- }
- symbol->created = true;
- return symbol;
-}
-
-static void
-pre_get_column(struct vsctl_context *ctx,
- const struct vsctl_table_class *table, const char *column_name,
- const struct ovsdb_idl_column **columnp)
-{
- die_if_error(get_column(table, column_name, columnp));
- ovsdb_idl_add_column(ctx->idl, *columnp);
-}
-
-static char *
-missing_operator_error(const char *arg, const char **allowed_operators,
- size_t n_allowed)
-{
- struct ds s;
-
- ds_init(&s);
- ds_put_format(&s, "%s: argument does not end in ", arg);
- ds_put_format(&s, "\"%s\"", allowed_operators[0]);
- if (n_allowed == 2) {
- ds_put_format(&s, " or \"%s\"", allowed_operators[1]);
- } else if (n_allowed > 2) {
- size_t i;
-
- for (i = 1; i < n_allowed - 1; i++) {
- ds_put_format(&s, ", \"%s\"", allowed_operators[i]);
- }
- ds_put_format(&s, ", or \"%s\"", allowed_operators[i]);
- }
- ds_put_format(&s, " followed by a value.");
-
- return ds_steal_cstr(&s);
-}
-
-/* Breaks 'arg' apart into a number of fields in the following order:
- *
- * - The name of a column in 'table', stored into '*columnp'. The column
- * name may be abbreviated.
- *
- * - Optionally ':' followed by a key string. The key is stored as a
- * malloc()'d string into '*keyp', or NULL if no key is present in
- * 'arg'.
- *
- * - If 'valuep' is nonnull, an operator followed by a value string. The
- * allowed operators are the 'n_allowed' string in 'allowed_operators',
- * or just "=" if 'n_allowed' is 0. If 'operatorp' is nonnull, then the
- * operator is stored into '*operatorp' (one of the pointers from
- * 'allowed_operators' is stored; nothing is malloc()'d). The value is
- * stored as a malloc()'d string into '*valuep', or NULL if no value is
- * present in 'arg'.
- *
- * On success, returns NULL. On failure, returned a malloc()'d string error
- * message and stores NULL into all of the nonnull output arguments. */
-static char * WARN_UNUSED_RESULT
-parse_column_key_value(const char *arg,
- const struct vsctl_table_class *table,
- const struct ovsdb_idl_column **columnp, char **keyp,
- const char **operatorp,
- const char **allowed_operators, size_t n_allowed,
- char **valuep)
-{
- const char *p = arg;
- char *column_name;
- char *error;
-
- assert(!(operatorp && !valuep));
- *keyp = NULL;
- if (valuep) {
- *valuep = NULL;
- }
-
- /* Parse column name. */
- error = ovsdb_token_parse(&p, &column_name);
- if (error) {
- goto error;
- }
- if (column_name[0] == '\0') {
- free(column_name);
- error = xasprintf("%s: missing column name", arg);
- goto error;
- }
- error = get_column(table, column_name, columnp);
- free(column_name);
- if (error) {
- goto error;
- }
-
- /* Parse key string. */
- if (*p == ':') {
- p++;
- error = ovsdb_token_parse(&p, keyp);
- if (error) {
- goto error;
- }
- }
-
- /* Parse value string. */
- if (valuep) {
- const char *best;
- size_t best_len;
- size_t i;
-
- if (!allowed_operators) {
- static const char *equals = "=";
- allowed_operators = =
- n_allowed = 1;
- }
-
- best = NULL;
- best_len = 0;
- for (i = 0; i < n_allowed; i++) {
- const char *op = allowed_operators[i];
- size_t op_len = strlen(op);
-
- if (op_len > best_len && !strncmp(op, p, op_len) && p[op_len]) {
- best_len = op_len;
- best = op;
- }
- }
- if (!best) {
- error = missing_operator_error(arg, allowed_operators, n_allowed);
- goto error;
- }
-
- if (operatorp) {
- *operatorp = best;
- }
- *valuep = xstrdup(p + best_len);
- } else {
- if (*p != '\0') {
- error = xasprintf("%s: trailing garbage \"%s\" in argument",
- arg, p);
- goto error;
- }
- }
- return NULL;
-
-error:
- *columnp = NULL;
- free(*keyp);
- *keyp = NULL;
- if (valuep) {
- free(*valuep);
- *valuep = NULL;
- if (operatorp) {
- *operatorp = NULL;
- }
- }
- return error;
-}
-
-static void
-pre_parse_column_key_value(struct vsctl_context *ctx,
- const char *arg,
- const struct vsctl_table_class *table)
-{
- const struct ovsdb_idl_column *column;
- const char *p;
- char *column_name;
-
- p = arg;
- die_if_error(ovsdb_token_parse(&p, &column_name));
- if (column_name[0] == '\0') {
- vsctl_fatal("%s: missing column name", arg);
- }
-
- pre_get_column(ctx, table, column_name, &column);
- free(column_name);
-}
-
-static void
-pre_cmd_get(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;
- int i;
-
- /* Using "get" without --id or a column name could possibly make sense.
- * Maybe, for example, a ovs-vsctl run wants to assert that a row exists.
- * But it is unlikely that an interactive user would want to do that, so
- * issue a warning if we're running on a terminal. */
- if (!id && ctx->argc <= 3 && isatty(STDOUT_FILENO)) {
- VLOG_WARN("\"get\" command without row arguments or \"--id\" is "
- "possibly erroneous");
- }
-
- table = pre_get_table(ctx, table_name);
- for (i = 3; i < ctx->argc; i++) {
- if (!strcasecmp(ctx->argv[i], "_uuid")
- || !strcasecmp(ctx->argv[i], "-uuid")) {
- continue;
- }
-
- pre_parse_column_key_value(ctx, ctx->argv[i], table);
- }
-}
-
-static void
-cmd_get(struct vsctl_context *ctx)
-{
- const char *id = shash_find_data(&ctx->options, "--id");
- bool if_exists = shash_find(&ctx->options, "--if-exists");
- 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;
- struct ds *out = &ctx->output;
- int i;
-
- table = get_table(table_name);
- row = must_get_row(ctx, table, record_id);
- if (id) {
- struct ovsdb_symbol *symbol;
- bool new;
-
- symbol = create_symbol(ctx->symtab, id, &new);
- if (!new) {
- vsctl_fatal("row id \"%s\" specified on \"get\" command was used "
- "before it was defined", id);
- }
- symbol->uuid = row->uuid;
-
- /* This symbol refers to a row that already exists, so disable warnings
- * about it being unreferenced. */
- symbol->strong_ref = true;
- }
- for (i = 3; i < ctx->argc; i++) {
- const struct ovsdb_idl_column *column;
- const struct ovsdb_datum *datum;
- char *key_string;
-
- /* Special case for obtaining the UUID of a row. We can't just do this
- * through parse_column_key_value() below since it returns a "struct
- * ovsdb_idl_column" and the UUID column doesn't have one. */
- if (!strcasecmp(ctx->argv[i], "_uuid")
- || !strcasecmp(ctx->argv[i], "-uuid")) {
- ds_put_format(out, UUID_FMT"\n", UUID_ARGS(&row->uuid));
- continue;
- }
-
- die_if_error(parse_column_key_value(ctx->argv[i], table,
- &column, &key_string,
- NULL, NULL, 0, NULL));
-
- ovsdb_idl_txn_verify(row, column);
- datum = ovsdb_idl_read(row, column);
- if (key_string) {
- union ovsdb_atom key;
- unsigned int idx;
-
- if (column->type.value.type == OVSDB_TYPE_VOID) {
- vsctl_fatal("cannot specify key to get for non-map column %s",
- column->name);
- }
-
- die_if_error(ovsdb_atom_from_string(&key,
- &column->type.key,
- key_string, ctx->symtab));
-
- idx = ovsdb_datum_find_key(datum, &key,
- column->type.key.type);
- if (idx == UINT_MAX) {
- if (!if_exists) {
- vsctl_fatal("no key \"%s\" in %s record \"%s\" column %s",
- key_string, table->class->name, record_id,
- column->name);
- }
- } else {
- ovsdb_atom_to_string(&datum->values[idx],
- column->type.value.type, out);
- }
- ovsdb_atom_destroy(&key, column->type.key.type);
- } else {
- ovsdb_datum_to_string(datum, &column->type, out);
- }
- ds_put_char(out, '\n');
-
- free(key_string);
- }
-}
-
-static void
-parse_column_names(const char *column_names,
- const struct vsctl_table_class *table,
- const struct ovsdb_idl_column ***columnsp,
- size_t *n_columnsp)
-{
- const struct ovsdb_idl_column **columns;
- size_t n_columns;
-
- if (!column_names) {
- size_t i;
-
- n_columns = table->class->n_columns + 1;
- columns = xmalloc(n_columns * sizeof *columns);
- columns[0] = NULL;
- for (i = 0; i < table->class->n_columns; i++) {
- columns[i + 1] = &table->class->columns[i];
- }
- } else {
- char *s = xstrdup(column_names);
- size_t allocated_columns;
- char *save_ptr = NULL;
- char *column_name;
-
- columns = NULL;
- allocated_columns = n_columns = 0;
- for (column_name = strtok_r(s, ", ", &save_ptr); column_name;
- column_name = strtok_r(NULL, ", ", &save_ptr)) {
- const struct ovsdb_idl_column *column;
-
- if (!strcasecmp(column_name, "_uuid")) {
- column = NULL;
- } else {
- die_if_error(get_column(table, column_name, &column));
- }
- if (n_columns >= allocated_columns) {
- columns = x2nrealloc(columns, &allocated_columns,
- sizeof *columns);
- }
- columns[n_columns++] = column;
- }
- free(s);
-
- if (!n_columns) {
- vsctl_fatal("must specify at least one column name");
- }
- }
- *columnsp = columns;
- *n_columnsp = n_columns;
-}
-
-
-static void
-pre_list_columns(struct vsctl_context *ctx,
- const struct vsctl_table_class *table,
- const char *column_names)
-{
- const struct ovsdb_idl_column **columns;
- size_t n_columns;
- size_t i;
-
- parse_column_names(column_names, table, &columns, &n_columns);
- for (i = 0; i < n_columns; i++) {
- if (columns[i]) {
- ovsdb_idl_add_column(ctx->idl, columns[i]);
- }
- }
- free(columns);
-}
-
-static void
-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;
-
- for (row = ovsdb_idl_first_row(ctx->idl, table->class); row != NULL;
- row = ovsdb_idl_next_row(row)) {
- 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
-pre_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;
-
- table = get_table(table_name);
- if (!id && !table->class->is_root) {
- VLOG_WARN("applying \"create\" command to table %s without --id "
- "option will have no effect", table->class->name);
- }
-}
-
-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 = get_table(table_name);
- const struct ovsdb_idl_row *row;
- const struct uuid *uuid;
- int i;
-
- if (id) {
- struct ovsdb_symbol *symbol = create_symbol(ctx->symtab, id, NULL);
- if (table->class->is_root) {
- /* This table is in the root set, meaning that rows created in it
- * won't disappear even if they are unreferenced, so disable
- * warnings about that by pretending that there is a reference. */
- symbol->strong_ref = true;
- }
- uuid = &symbol->uuid;
- } else {
- uuid = NULL;
- }
-
- 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;