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ovsdb-tool.c
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ovsdb-tool.c
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/*
* Copyright (c) 2009, 2010, 2011, 2012, 2013, 2016, 2017 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <config.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include "column.h"
#include "command-line.h"
#include "compiler.h"
#include "dirs.h"
#include "openvswitch/dynamic-string.h"
#include "fatal-signal.h"
#include "file.h"
#include "hash.h"
#include "lockfile.h"
#include "log.h"
#include "openvswitch/hmap.h"
#include "openvswitch/json.h"
#include "ovsdb.h"
#include "ovsdb-data.h"
#include "ovsdb-error.h"
#include "ovsdb-parser.h"
#include "raft.h"
#include "raft-private.h"
#include "smap.h"
#include "socket-util.h"
#include "storage.h"
#include "table.h"
#include "timeval.h"
#include "transaction.h"
#include "util.h"
#include "openvswitch/vlog.h"
/* -m, --more: Verbosity level for "show-log" command output. */
static int show_log_verbosity;
/* --role: RBAC role to use for "transact" and "query" commands. */
static const char *rbac_role;
/* --cid: Cluster ID for "join-cluster" command. */
static struct uuid cid;
static const struct ovs_cmdl_command *get_all_commands(void);
OVS_NO_RETURN static void usage(void);
static void parse_options(int argc, char *argv[]);
static const char *default_db(void);
static const char *default_schema(void);
int
main(int argc, char *argv[])
{
struct ovs_cmdl_context ctx = { .argc = 0, };
set_program_name(argv[0]);
parse_options(argc, argv);
fatal_ignore_sigpipe();
fatal_signal_init();
ctx.argc = argc - optind;
ctx.argv = argv + optind;
ovs_cmdl_run_command(&ctx, get_all_commands());
return 0;
}
static void
parse_options(int argc, char *argv[])
{
enum {
OPT_RBAC_ROLE = UCHAR_MAX + 1,
OPT_CID
};
static const struct option long_options[] = {
{"more", no_argument, NULL, 'm'},
{"rbac-role", required_argument, NULL, OPT_RBAC_ROLE},
{"cid", required_argument, NULL, OPT_CID},
{"verbose", optional_argument, NULL, 'v'},
{"help", no_argument, NULL, 'h'},
{"option", no_argument, NULL, 'o'},
{"version", no_argument, NULL, 'V'},
{NULL, 0, NULL, 0},
};
char *short_options = ovs_cmdl_long_options_to_short_options(long_options);
for (;;) {
int c;
c = getopt_long(argc, argv, short_options, long_options, NULL);
if (c == -1) {
break;
}
switch (c) {
case 'm':
show_log_verbosity++;
break;
case OPT_RBAC_ROLE:
rbac_role = optarg;
break;
case OPT_CID:
if (!uuid_from_string(&cid, optarg) || uuid_is_zero(&cid)) {
ovs_fatal(0, "%s: not a valid UUID", optarg);
}
break;
case 'h':
usage();
case 'o':
ovs_cmdl_print_options(long_options);
exit(EXIT_SUCCESS);
case 'V':
ovs_print_version(0, 0);
exit(EXIT_SUCCESS);
case 'v':
vlog_set_verbosity(optarg);
break;
case '?':
exit(EXIT_FAILURE);
default:
abort();
}
}
free(short_options);
}
static void
usage(void)
{
printf("%s: Open vSwitch database management utility\n"
"usage: %s [OPTIONS] COMMAND [ARG...]\n"
" create [DB [SCHEMA]] create DB with the given SCHEMA\n"
" create-cluster DB CONTENTS LOCAL\n"
" create clustered DB with given CONTENTS and LOCAL address\n"
" [--cid=UUID] join-cluster DB NAME LOCAL REMOTE...\n"
" join clustered DB with given NAME and LOCAL and REMOTE addrs\n"
" compact [DB [DST]] compact DB in-place (or to DST)\n"
" convert [DB [SCHEMA [DST]]] convert DB to SCHEMA (to DST)\n"
" db-name [DB] report name of schema used by DB\n"
" db-version [DB] report version of schema used by DB\n"
" db-cksum [DB] report checksum of schema used by DB\n"
" db-cid DB report cluster ID of clustered DB\n"
" db-sid DB report server ID of clustered DB\n"
" db-local-address DB report local address of clustered DB\n"
" db-is-clustered DB test whether DB is clustered\n"
" db-is-standalone DB test whether DB is standalone\n"
" schema-name [SCHEMA] report SCHEMA's name\n"
" schema-version [SCHEMA] report SCHEMA's schema version\n"
" schema-cksum [SCHEMA] report SCHEMA's checksum\n"
" compare-versions A OP B compare OVSDB schema version numbers\n"
" query [DB] TRNS execute read-only transaction on DB\n"
" transact [DB] TRNS execute read/write transaction on DB\n"
" [-m]... show-log [DB] print DB's log entries\n"
"The default DB is %s.\n"
"The default SCHEMA is %s.\n",
program_name, program_name, default_db(), default_schema());
vlog_usage();
printf("\
\nOther options:\n\
-m, --more increase show-log verbosity\n\
--rbac-role=ROLE RBAC role for transact and query commands\n\
-h, --help display this help message\n\
-V, --version display version information\n");
exit(EXIT_SUCCESS);
}
static const char *
default_db(void)
{
static char *db;
if (!db) {
db = xasprintf("%s/conf.db", ovs_dbdir());
}
return db;
}
static const char *
default_schema(void)
{
static char *schema;
if (!schema) {
schema = xasprintf("%s/vswitch.ovsschema", ovs_pkgdatadir());
}
return schema;
}
static struct json *
parse_json(const char *s)
{
struct json *json = json_from_string(s);
if (json->type == JSON_STRING) {
ovs_fatal(0, "\"%s\": %s", s, json->string);
}
return json;
}
static void
print_and_free_json(struct json *json)
{
char *string = json_to_string(json, JSSF_SORT);
json_destroy(json);
puts(string);
free(string);
}
static void
check_ovsdb_error(struct ovsdb_error *error)
{
if (error) {
ovs_fatal(0, "%s", ovsdb_error_to_string(error));
}
}
/* Opens the standalone database 'filename' and returns its schema. */
static struct ovsdb_schema *
read_standalone_schema(const char *filename)
{
struct ovsdb_storage *storage = ovsdb_storage_open_standalone(filename,
false);
struct ovsdb_schema *schema = ovsdb_storage_read_schema(storage);
ovsdb_storage_close(storage);
return schema;
}
static void
do_create(struct ovs_cmdl_context *ctx)
{
const char *db_file_name = ctx->argc >= 2 ? ctx->argv[1] : default_db();
const char *schema_file_name = ctx->argc >= 3 ? ctx->argv[2] : default_schema();
struct ovsdb_schema *schema;
struct ovsdb_log *log;
struct json *json;
/* Read schema from file and convert to JSON. */
check_ovsdb_error(ovsdb_schema_from_file(schema_file_name, &schema));
json = ovsdb_schema_to_json(schema);
ovsdb_schema_destroy(schema);
/* Create database file. */
check_ovsdb_error(ovsdb_log_open(db_file_name, OVSDB_MAGIC,
OVSDB_LOG_CREATE_EXCL, -1, &log));
check_ovsdb_error(ovsdb_log_write_and_free(log, json));
check_ovsdb_error(ovsdb_log_commit_block(log));
ovsdb_log_close(log);
}
static void
do_create_cluster(struct ovs_cmdl_context *ctx)
{
const char *db_file_name = ctx->argv[1];
const char *src_file_name = ctx->argv[2];
const char *local = ctx->argv[3];
struct ovsdb_schema *schema;
struct json *data;
struct ovsdb_error *error = ovsdb_schema_from_file(src_file_name, &schema);
if (!error) {
/* It's just a schema file. */
data = json_object_create();
} else {
/* Not a schema file. Try reading it as a standalone database. */
ovsdb_error_destroy(error);
struct ovsdb *ovsdb = ovsdb_file_read(src_file_name, false);
char *comment = xasprintf("created from %s", src_file_name);
data = ovsdb_to_txn_json(ovsdb, comment);
free(comment);
schema = ovsdb_schema_clone(ovsdb->schema);
ovsdb_destroy(ovsdb);
}
ovsdb_schema_persist_ephemeral_columns(schema, src_file_name);
struct json *schema_json = ovsdb_schema_to_json(schema);
/* Create database file. */
struct json *snapshot = json_array_create_2(schema_json, data);
check_ovsdb_error(raft_create_cluster(db_file_name, schema->name,
local, snapshot));
ovsdb_schema_destroy(schema);
json_destroy(snapshot);
}
static void
do_join_cluster(struct ovs_cmdl_context *ctx)
{
const char *db_file_name = ctx->argv[1];
const char *name = ctx->argv[2];
const char *local = ctx->argv[3];
/* Check for a plausible 'name'. */
if (!ovsdb_parser_is_id(name)) {
ovs_fatal(0, "%s: not a valid schema name (use \"schema-name\" "
"command to find the correct name)", name);
}
/* Create database file. */
struct sset remote_addrs = SSET_INITIALIZER(&remote_addrs);
for (size_t i = 4; i < ctx->argc; i++) {
sset_add(&remote_addrs, ctx->argv[i]);
}
check_ovsdb_error(raft_join_cluster(db_file_name, name, local,
&remote_addrs,
uuid_is_zero(&cid) ? NULL : &cid));
sset_destroy(&remote_addrs);
}
static struct ovsdb_error *
write_standalone_db(const char *file_name, const char *comment,
const struct ovsdb *db)
{
struct ovsdb_log *log;
struct ovsdb_error *error = ovsdb_log_open(file_name, OVSDB_MAGIC,
OVSDB_LOG_CREATE, false, &log);
if (error) {
return error;
}
error = ovsdb_log_write_and_free(log, ovsdb_schema_to_json(db->schema));
if (!error) {
error = ovsdb_log_write_and_free(log, ovsdb_to_txn_json(db, comment));
}
ovsdb_log_close(log);
if (error) {
remove(file_name);
}
return error;
}
/* Reads 'src_name' and writes it back, compacted, to 'dst_name', adding the
* specified 'comment'. If 'new_schema' is nonull, converts the databse to
* that schema.
*
* Standalone databases only. */
static void
compact_or_convert(const char *src_name_, const char *dst_name_,
struct ovsdb_schema *new_schema, const char *comment)
{
bool in_place = dst_name_ == NULL;
/* Dereference symlinks for source and destination names. In the in-place
* case this ensures that, if the source name is a symlink, we replace its
* target instead of replacing the symlink by a regular file. In the
* non-in-place, this has the same effect for the destination name. */
char *src_name = follow_symlinks(src_name_);
char *dst_name = (in_place
? xasprintf("%s.tmp", src_name)
: follow_symlinks(dst_name_));
/* Lock the source, if we will be replacing it. */
struct lockfile *src_lock = NULL;
if (in_place) {
int retval = lockfile_lock(src_name, &src_lock);
if (retval) {
ovs_fatal(retval, "%s: failed to lock lockfile", src_name);
}
}
/* Get (temporary) destination and lock it. */
struct lockfile *dst_lock = NULL;
int retval = lockfile_lock(dst_name, &dst_lock);
if (retval) {
ovs_fatal(retval, "%s: failed to lock lockfile", dst_name);
}
/* Save a copy. */
struct ovsdb *ovsdb = (new_schema
? ovsdb_file_read_as_schema(src_name, new_schema)
: ovsdb_file_read(src_name, false));
ovsdb_storage_close(ovsdb->storage);
ovsdb->storage = NULL;
check_ovsdb_error(write_standalone_db(dst_name, comment, ovsdb));
ovsdb_destroy(ovsdb);
/* Replace source. */
if (in_place) {
#ifdef _WIN32
unlink(src_name);
#endif
if (rename(dst_name, src_name)) {
ovs_fatal(errno, "failed to rename \"%s\" to \"%s\"",
dst_name, src_name);
}
fsync_parent_dir(dst_name);
lockfile_unlock(src_lock);
}
lockfile_unlock(dst_lock);
free(src_name);
free(dst_name);
}
static void
do_compact(struct ovs_cmdl_context *ctx)
{
const char *db = ctx->argc >= 2 ? ctx->argv[1] : default_db();
const char *target = ctx->argc >= 3 ? ctx->argv[2] : NULL;
compact_or_convert(db, target, NULL, "compacted by ovsdb-tool "VERSION);
}
static void
do_convert(struct ovs_cmdl_context *ctx)
{
const char *db = ctx->argc >= 2 ? ctx->argv[1] : default_db();
const char *schema = ctx->argc >= 3 ? ctx->argv[2] : default_schema();
const char *target = ctx->argc >= 4 ? ctx->argv[3] : NULL;
struct ovsdb_schema *new_schema;
check_ovsdb_error(ovsdb_schema_from_file(schema, &new_schema));
compact_or_convert(db, target, new_schema,
"converted by ovsdb-tool "VERSION);
}
static void
do_needs_conversion(struct ovs_cmdl_context *ctx)
{
const char *db_file_name = ctx->argc >= 2 ? ctx->argv[1] : default_db();
const char *schema_file_name = ctx->argc >= 3 ? ctx->argv[2] : default_schema();
struct ovsdb_schema *schema1 = read_standalone_schema(db_file_name);
struct ovsdb_schema *schema2;
check_ovsdb_error(ovsdb_schema_from_file(schema_file_name, &schema2));
puts(ovsdb_schema_equal(schema1, schema2) ? "no" : "yes");
ovsdb_schema_destroy(schema1);
ovsdb_schema_destroy(schema2);
}
static void
do_db_name(struct ovs_cmdl_context *ctx)
{
const char *db_file_name = ctx->argc >= 2 ? ctx->argv[1] : default_db();
struct ovsdb_log *log;
check_ovsdb_error(ovsdb_log_open(db_file_name, OVSDB_MAGIC"|"RAFT_MAGIC,
OVSDB_LOG_READ_ONLY, -1, &log));
if (!strcmp(ovsdb_log_get_magic(log), OVSDB_MAGIC)) {
struct json *schema_json;
check_ovsdb_error(ovsdb_log_read(log, &schema_json));
struct ovsdb_schema *schema;
check_ovsdb_error(ovsdb_schema_from_json(schema_json, &schema));
puts(schema->name);
ovsdb_schema_destroy(schema);
json_destroy(schema_json);
} else if (!strcmp(ovsdb_log_get_magic(log), RAFT_MAGIC)) {
struct raft_metadata md;
check_ovsdb_error(raft_read_metadata(log, &md));
puts(md.name);
raft_metadata_destroy(&md);
} else {
OVS_NOT_REACHED();
}
ovsdb_log_close(log);
}
static void
do_db_version(struct ovs_cmdl_context *ctx)
{
const char *db_file_name = ctx->argc >= 2 ? ctx->argv[1] : default_db();
struct ovsdb_schema *schema = read_standalone_schema(db_file_name);
puts(schema->version);
ovsdb_schema_destroy(schema);
}
static void
do_db_cksum(struct ovs_cmdl_context *ctx)
{
const char *db_file_name = ctx->argc >= 2 ? ctx->argv[1] : default_db();
struct ovsdb_schema *schema = read_standalone_schema(db_file_name);
puts(schema->cksum);
ovsdb_schema_destroy(schema);
}
static struct raft_metadata
read_cluster_metadata(const char *filename)
{
struct ovsdb_log *log;
check_ovsdb_error(ovsdb_log_open(filename, OVSDB_MAGIC"|"RAFT_MAGIC,
OVSDB_LOG_READ_ONLY, -1, &log));
if (strcmp(ovsdb_log_get_magic(log), RAFT_MAGIC)) {
ovs_fatal(0, "%s: not a clustered database", filename);
}
struct raft_metadata md;
check_ovsdb_error(raft_read_metadata(log, &md));
ovsdb_log_close(log);
return md;
}
static void
do_db_cid(struct ovs_cmdl_context *ctx)
{
const char *db_file_name = ctx->argv[1];
struct raft_metadata md = read_cluster_metadata(db_file_name);
if (uuid_is_zero(&md.cid)) {
fprintf(stderr, "%s: cluster ID not yet known\n", db_file_name);
exit(2);
}
printf(UUID_FMT"\n", UUID_ARGS(&md.cid));
raft_metadata_destroy(&md);
}
static void
do_db_sid(struct ovs_cmdl_context *ctx)
{
const char *db_file_name = ctx->argv[1];
struct raft_metadata md = read_cluster_metadata(db_file_name);
printf(UUID_FMT"\n", UUID_ARGS(&md.sid));
raft_metadata_destroy(&md);
}
static void
do_db_local_address(struct ovs_cmdl_context *ctx)
{
const char *db_file_name = ctx->argv[1];
struct raft_metadata md = read_cluster_metadata(db_file_name);
puts(md.local);
raft_metadata_destroy(&md);
}
static void
do_db_has_magic(struct ovs_cmdl_context *ctx, const char *magic)
{
const char *filename = ctx->argv[1];
struct ovsdb_log *log;
check_ovsdb_error(ovsdb_log_open(filename, OVSDB_MAGIC"|"RAFT_MAGIC,
OVSDB_LOG_READ_ONLY, -1, &log));
if (strcmp(ovsdb_log_get_magic(log), magic)) {
exit(2);
}
}
static void
do_db_is_clustered(struct ovs_cmdl_context *ctx)
{
do_db_has_magic(ctx, RAFT_MAGIC);
}
static void
do_db_is_standalone(struct ovs_cmdl_context *ctx)
{
do_db_has_magic(ctx, OVSDB_MAGIC);
}
static void
do_schema_name(struct ovs_cmdl_context *ctx)
{
const char *schema_file_name = ctx->argc >= 2 ? ctx->argv[1] : default_schema();
struct ovsdb_schema *schema;
check_ovsdb_error(ovsdb_schema_from_file(schema_file_name, &schema));
puts(schema->name);
ovsdb_schema_destroy(schema);
}
static void
do_schema_version(struct ovs_cmdl_context *ctx)
{
const char *schema_file_name = ctx->argc >= 2 ? ctx->argv[1] : default_schema();
struct ovsdb_schema *schema;
check_ovsdb_error(ovsdb_schema_from_file(schema_file_name, &schema));
puts(schema->version);
ovsdb_schema_destroy(schema);
}
static void
do_schema_cksum(struct ovs_cmdl_context *ctx)
{
const char *schema_file_name
= ctx->argc >= 2 ? ctx->argv[1] : default_schema();
struct ovsdb_schema *schema;
check_ovsdb_error(ovsdb_schema_from_file(schema_file_name, &schema));
puts(schema->cksum);
ovsdb_schema_destroy(schema);
}
/* Standalone databases only. */
static void
transact(struct ovs_cmdl_context *ctx, bool rw)
{
const char *db_file_name = ctx->argc >= 3 ? ctx->argv[1] : default_db();
const char *transaction = ctx->argv[ctx->argc - 1];
struct ovsdb *ovsdb = ovsdb_file_read(db_file_name, rw);
struct json *request = parse_json(transaction);
struct json *result = ovsdb_execute(ovsdb, NULL, request, false,
rbac_role, NULL, 0, NULL);
json_destroy(request);
print_and_free_json(result);
ovsdb_destroy(ovsdb);
}
static void
do_query(struct ovs_cmdl_context *ctx)
{
transact(ctx, false);
}
static void
do_transact(struct ovs_cmdl_context *ctx)
{
transact(ctx, true);
}
static void
print_db_changes(struct shash *tables, struct smap *names,
const struct ovsdb_schema *schema)
{
struct shash_node *n1;
int i = 0;
SHASH_FOR_EACH (n1, tables) {
const char *table = n1->name;
struct ovsdb_table_schema *table_schema;
struct json *rows = n1->data;
struct shash_node *n2;
if (n1->name[0] == '_' || rows->type != JSON_OBJECT) {
continue;
}
if (i++ == 0) {
putchar('\n');
}
table_schema = schema ? shash_find_data(&schema->tables, table) : NULL;
SHASH_FOR_EACH (n2, json_object(rows)) {
const char *row_uuid = n2->name;
struct json *columns = n2->data;
struct shash_node *n3;
const char *old_name = smap_get(names, row_uuid);
char *new_name = NULL;
if (columns->type == JSON_OBJECT) {
struct json *new_name_json;
new_name_json = shash_find_data(json_object(columns), "name");
if (new_name_json) {
new_name = json_to_string(new_name_json, JSSF_SORT);
}
}
printf(" table %s", table);
if (!old_name) {
if (new_name) {
printf(" insert row %s (%.8s):\n", new_name, row_uuid);
} else {
printf(" insert row %.8s:\n", row_uuid);
}
} else {
printf(" row %s (%.8s):\n", old_name, row_uuid);
}
if (columns->type == JSON_OBJECT) {
if (show_log_verbosity > 1) {
SHASH_FOR_EACH (n3, json_object(columns)) {
const char *column = n3->name;
const struct ovsdb_column *column_schema;
struct json *value = n3->data;
char *value_string = NULL;
column_schema =
(table_schema
? shash_find_data(&table_schema->columns, column)
: NULL);
if (column_schema) {
const struct ovsdb_type *type;
struct ovsdb_error *error;
struct ovsdb_datum datum;
type = &column_schema->type;
error = ovsdb_datum_from_json(&datum, type,
value, NULL);
if (!error) {
struct ds s;
ds_init(&s);
ovsdb_datum_to_string(&datum, type, &s);
value_string = ds_steal_cstr(&s);
} else {
ovsdb_error_destroy(error);
}
}
if (!value_string) {
value_string = json_to_string(value, JSSF_SORT);
}
printf(" %s=%s\n", column, value_string);
free(value_string);
}
}
if (new_name && (!old_name || strcmp(old_name, new_name))) {
smap_replace_nocopy(names, row_uuid, new_name);
new_name = NULL;
} else if (!old_name) {
smap_add_nocopy(names, xstrdup(row_uuid),
xmemdup0(row_uuid, 8));
}
} else if (columns->type == JSON_NULL) {
printf(" delete row\n");
smap_remove(names, row_uuid);
}
free(new_name);
}
}
}
static void
print_change_record(const struct json *json, const struct ovsdb_schema *schema,
struct smap *names)
{
if (!json || json->type != JSON_OBJECT) {
return;
}
struct json *date, *comment;
date = shash_find_data(json_object(json), "_date");
if (date && date->type == JSON_INTEGER) {
long long int t = json_integer(date);
char *s;
if (t < INT32_MAX) {
/* Older versions of ovsdb wrote timestamps in seconds. */
t *= 1000;
}
s = xastrftime_msec(" %Y-%m-%d %H:%M:%S.###", t, true);
fputs(s, stdout);
free(s);
}
comment = shash_find_data(json_object(json), "_comment");
if (comment && comment->type == JSON_STRING) {
printf(" \"%s\"", json_string(comment));
}
if (show_log_verbosity > 0) {
print_db_changes(json_object(json), names, schema);
}
}
static void
do_show_log_standalone(struct ovsdb_log *log)
{
struct smap names = SMAP_INITIALIZER(&names);
struct ovsdb_schema *schema = NULL;
for (unsigned int i = 0; ; i++) {
struct json *json;
check_ovsdb_error(ovsdb_log_read(log, &json));
if (!json) {
break;
}
printf("record %u:", i);
if (i == 0) {
check_ovsdb_error(ovsdb_schema_from_json(json, &schema));
printf(" \"%s\" schema, version=\"%s\", cksum=\"%s\"\n",
schema->name, schema->version, schema->cksum);
} else {
print_change_record(json, schema, &names);
}
json_destroy(json);
putchar('\n');
}
ovsdb_schema_destroy(schema);
smap_destroy(&names);
}
static void
print_servers(const char *name, const struct json *servers)
{
if (!servers) {
return;
}
printf(" %s: ", name);
const struct shash_node **nodes = shash_sort(json_object(servers));
size_t n = shash_count(json_object(servers));
for (size_t i = 0; i < n; i++) {
if (i > 0) {
printf(", ");
}
const struct shash_node *node = nodes[i];
printf("%.4s(", node->name);
const struct json *address = node->data;
char *s = json_to_string(address, JSSF_SORT);
fputs(s, stdout);
free(s);
putchar(')');
}
free(nodes);
putchar('\n');
}
static void
print_data(const char *prefix, const struct json *data,
struct ovsdb_schema **schemap, struct smap *names)
{
if (!data) {
return;
}
if (json_array(data)->n != 2) {
printf(" ***invalid data***\n");
return;
}
const struct json *schema_json = json_array(data)->elems[0];
if (schema_json->type != JSON_NULL) {
struct ovsdb_schema *schema;
check_ovsdb_error(ovsdb_schema_from_json(schema_json, &schema));
printf(" %sschema: \"%s\", version=\"%s\", cksum=\"%s\"\n",
prefix, schema->name, schema->version, schema->cksum);
ovsdb_schema_destroy(*schemap);
*schemap = schema;
}
print_change_record(json_array(data)->elems[1], *schemap, names);
}
static void
print_raft_header(const struct raft_header *h,
struct ovsdb_schema **schemap, struct smap *names)
{
printf(" name: \"%s\'\n", h->name);
printf(" local address: \"%s\"\n", h->local_address);
printf(" server_id: "SID_FMT"\n", SID_ARGS(&h->sid));
if (!uuid_is_zero(&h->cid)) {
printf(" cluster_id: "CID_FMT"\n", CID_ARGS(&h->cid));
}
if (!sset_is_empty(&h->remote_addresses)) {
printf(" remote_addresses:");
const char *s;
SSET_FOR_EACH (s, &h->remote_addresses) {
printf(" %s", s);
}
putchar('\n');
}
if (h->snap_index) {
printf(" prev_index: %"PRIu64"\n", h->snap_index);
printf(" prev_term: %"PRIu64"\n", h->snap.term);
print_servers("prev_servers", h->snap.servers);
if (!uuid_is_zero(&h->snap.eid)) {
printf(" prev_eid: %04x\n", uuid_prefix(&h->snap.eid, 4));
}
print_data("prev_", h->snap.data, schemap, names);
}
}
static void
print_raft_record(const struct raft_record *r,
struct ovsdb_schema **schemap, struct smap *names)
{
if (r->comment) {
printf(" comment: \"%s\"\n", r->comment);
}
if (r->term) {
printf(" term: %"PRIu64"\n", r->term);
}
switch (r->type) {
case RAFT_REC_ENTRY:
printf(" index: %"PRIu64"\n", r->entry.index);
print_servers("servers", r->entry.servers);
if (!uuid_is_zero(&r->entry.eid)) {
printf(" eid: %04x\n", uuid_prefix(&r->entry.eid, 4));
}
print_data("", r->entry.data, schemap, names);
break;
case RAFT_REC_TERM:
break;
case RAFT_REC_VOTE:
printf(" vote: "SID_FMT"\n", SID_ARGS(&r->sid));
break;
case RAFT_REC_NOTE:
printf(" note: \"%s\"\n", r->note);
break;
case RAFT_REC_COMMIT_INDEX:
printf(" commit_index: %"PRIu64"\n", r->commit_index);
break;
case RAFT_REC_LEADER:
printf(" leader: "SID_FMT"\n", SID_ARGS(&r->sid));
break;
default:
OVS_NOT_REACHED();
}
}
static void
do_show_log_cluster(struct ovsdb_log *log)
{
struct smap names = SMAP_INITIALIZER(&names);
struct ovsdb_schema *schema = NULL;
for (unsigned int i = 0; ; i++) {
struct json *json;
check_ovsdb_error(ovsdb_log_read(log, &json));
if (!json) {
break;
}
printf("record %u:\n", i);
struct ovsdb_error *error;
if (i == 0) {
struct raft_header h;
error = raft_header_from_json(&h, json);
if (!error) {
print_raft_header(&h, &schema, &names);
raft_header_uninit(&h);
}
} else {
struct raft_record r;
error = raft_record_from_json(&r, json);
if (!error) {
print_raft_record(&r, &schema, &names);
raft_record_uninit(&r);
}
}
if (error) {
char *s = ovsdb_error_to_string_free(error);
puts(s);
free(s);
}
putchar('\n');
}
ovsdb_schema_destroy(schema);
smap_destroy(&names);
}
static void
do_show_log(struct ovs_cmdl_context *ctx)
{
const char *db_file_name = ctx->argc >= 2 ? ctx->argv[1] : default_db();
struct ovsdb_log *log;
check_ovsdb_error(ovsdb_log_open(db_file_name, OVSDB_MAGIC"|"RAFT_MAGIC,
OVSDB_LOG_READ_ONLY, -1, &log));
if (!strcmp(ovsdb_log_get_magic(log), OVSDB_MAGIC)) {
do_show_log_standalone(log);
} else {
do_show_log_cluster(log);
}
ovsdb_log_close(log);