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https://github.com/openvswitch/ovs
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b7585d1dff
Errors from this function were being ignored, which meant that transactions could use "mutate" to bypass number-of-elements constraints on sets and maps. This fixes the problem and adds a test to prevent the problem from recurring. Bug #5781.
73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/* Copyright (c) 2009, 2010, 2011 Nicira Networks
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef OVSDB_MUTATION_H
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#define OVSDB_MUTATION_H 1
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#include <stddef.h>
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#include "compiler.h"
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#include "ovsdb-data.h"
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struct json;
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struct ovsdb_table_schema;
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struct ovsdb_row;
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/* These list is ordered in ascending order of the fraction of tables row that
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* they are (heuristically) expected to leave in query results. */
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#define OVSDB_MUTATORS \
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OVSDB_MUTATOR(OVSDB_M_ADD, "+=") \
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OVSDB_MUTATOR(OVSDB_M_SUB, "-=") \
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OVSDB_MUTATOR(OVSDB_M_MUL, "*=") \
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OVSDB_MUTATOR(OVSDB_M_DIV, "/=") \
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OVSDB_MUTATOR(OVSDB_M_MOD, "%=") \
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OVSDB_MUTATOR(OVSDB_M_INSERT, "insert") \
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OVSDB_MUTATOR(OVSDB_M_DELETE, "delete")
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enum ovsdb_mutator {
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#define OVSDB_MUTATOR(ENUM, NAME) ENUM,
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OVSDB_MUTATORS
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#undef OVSDB_MUTATOR
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};
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struct ovsdb_error *ovsdb_mutator_from_string(const char *,
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enum ovsdb_mutator *)
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WARN_UNUSED_RESULT;
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const char *ovsdb_mutator_to_string(enum ovsdb_mutator);
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struct ovsdb_mutation {
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enum ovsdb_mutator mutator;
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const struct ovsdb_column *column;
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struct ovsdb_datum arg;
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struct ovsdb_type type;
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};
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struct ovsdb_mutation_set {
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struct ovsdb_mutation *mutations;
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size_t n_mutations;
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};
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#define OVSDB_MUTATION_SET_INITIALIZER { NULL, 0 }
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struct ovsdb_error *ovsdb_mutation_set_from_json(
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const struct ovsdb_table_schema *,
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const struct json *, struct ovsdb_symbol_table *,
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struct ovsdb_mutation_set *) WARN_UNUSED_RESULT;
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struct json *ovsdb_mutation_set_to_json(const struct ovsdb_mutation_set *);
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void ovsdb_mutation_set_destroy(struct ovsdb_mutation_set *);
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struct ovsdb_error *ovsdb_mutation_set_execute(
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struct ovsdb_row *, const struct ovsdb_mutation_set *) WARN_UNUSED_RESULT;
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#endif /* ovsdb/mutation.h */
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