/
config.cpp
2288 lines (2092 loc) · 101 KB
/
config.cpp
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/* Configuration file parsing and CONFIG GET/SET commands implementation.
*
* Copyright (c) 2009-2012, Salvatore Sanfilippo <antirez at gmail dot com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Redis nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "server.h"
#include "cluster.h"
#include <fcntl.h>
#include <sys/stat.h>
const char *KEYDB_SET_VERSION = KEYDB_REAL_VERSION;
/*-----------------------------------------------------------------------------
* Config file name-value maps.
*----------------------------------------------------------------------------*/
typedef struct configEnum {
const char *name;
const int val;
} configEnum;
configEnum maxmemory_policy_enum[] = {
{"volatile-lru", MAXMEMORY_VOLATILE_LRU},
{"volatile-lfu", MAXMEMORY_VOLATILE_LFU},
{"volatile-random",MAXMEMORY_VOLATILE_RANDOM},
{"volatile-ttl",MAXMEMORY_VOLATILE_TTL},
{"allkeys-lru",MAXMEMORY_ALLKEYS_LRU},
{"allkeys-lfu",MAXMEMORY_ALLKEYS_LFU},
{"allkeys-random",MAXMEMORY_ALLKEYS_RANDOM},
{"noeviction",MAXMEMORY_NO_EVICTION},
{NULL, 0}
};
configEnum syslog_facility_enum[] = {
{"user", LOG_USER},
{"local0", LOG_LOCAL0},
{"local1", LOG_LOCAL1},
{"local2", LOG_LOCAL2},
{"local3", LOG_LOCAL3},
{"local4", LOG_LOCAL4},
{"local5", LOG_LOCAL5},
{"local6", LOG_LOCAL6},
{"local7", LOG_LOCAL7},
{NULL, 0}
};
configEnum loglevel_enum[] = {
{"debug", LL_DEBUG},
{"verbose", LL_VERBOSE},
{"notice", LL_NOTICE},
{"warning", LL_WARNING},
{NULL,0}
};
configEnum supervised_mode_enum[] = {
{"upstart", SUPERVISED_UPSTART},
{"systemd", SUPERVISED_SYSTEMD},
{"auto", SUPERVISED_AUTODETECT},
{"no", SUPERVISED_NONE},
{NULL, 0}
};
configEnum aof_fsync_enum[] = {
{"everysec", AOF_FSYNC_EVERYSEC},
{"always", AOF_FSYNC_ALWAYS},
{"no", AOF_FSYNC_NO},
{NULL, 0}
};
/* Output buffer limits presets. */
clientBufferLimitsConfig clientBufferLimitsDefaults[CLIENT_TYPE_OBUF_COUNT] = {
{0, 0, 0}, /* normal */
{1024*1024*256, 1024*1024*64, 60}, /* replica */
{1024*1024*32, 1024*1024*8, 60} /* pubsub */
};
/* Configuration values that require no special handling to set, get, load or
* rewrite. */
typedef struct configYesNo {
const char *name; /* The user visible name of this config */
const char *alias; /* An alias that can also be used for this config */
int *config; /* The pointer to the server config this value is stored in */
const int modifiable; /* Can this value be updated by CONFIG SET? */
const int default_value; /* The default value of the config on rewrite */
} configYesNo;
configYesNo configs_yesno[] = {
/* Non-Modifiable */
{"rdbchecksum",NULL,&g_pserver->rdb_checksum,0,CONFIG_DEFAULT_RDB_CHECKSUM},
{"daemonize",NULL,&cserver.daemonize,0,0},
{"always-show-logo",NULL,&g_pserver->always_show_logo,0,CONFIG_DEFAULT_ALWAYS_SHOW_LOGO},
/* Modifiable */
{"protected-mode",NULL,&g_pserver->protected_mode,1,CONFIG_DEFAULT_PROTECTED_MODE},
{"rdbcompression",NULL,&g_pserver->rdb_compression,1,CONFIG_DEFAULT_RDB_COMPRESSION},
{"activerehashing",NULL,&g_pserver->activerehashing,1,CONFIG_DEFAULT_ACTIVE_REHASHING},
{"stop-writes-on-bgsave-error",NULL,&g_pserver->stop_writes_on_bgsave_err,1,CONFIG_DEFAULT_STOP_WRITES_ON_BGSAVE_ERROR},
{"dynamic-hz",NULL,&g_pserver->dynamic_hz,1,CONFIG_DEFAULT_DYNAMIC_HZ},
{"lazyfree-lazy-eviction",NULL,&g_pserver->lazyfree_lazy_eviction,1,CONFIG_DEFAULT_LAZYFREE_LAZY_EVICTION},
{"lazyfree-lazy-expire",NULL,&g_pserver->lazyfree_lazy_expire,1,CONFIG_DEFAULT_LAZYFREE_LAZY_EXPIRE},
{"lazyfree-lazy-server-del",NULL,&g_pserver->lazyfree_lazy_server_del,1,CONFIG_DEFAULT_LAZYFREE_LAZY_SERVER_DEL},
{"repl-disable-tcp-nodelay",NULL,&g_pserver->repl_disable_tcp_nodelay,1,CONFIG_DEFAULT_REPL_DISABLE_TCP_NODELAY},
{"repl-diskless-sync",NULL,&g_pserver->repl_diskless_sync,1,CONFIG_DEFAULT_REPL_DISKLESS_SYNC},
{"aof-rewrite-incremental-fsync",NULL,&g_pserver->aof_rewrite_incremental_fsync,1,CONFIG_DEFAULT_AOF_REWRITE_INCREMENTAL_FSYNC},
{"no-appendfsync-on-rewrite",NULL,&g_pserver->aof_no_fsync_on_rewrite,1,CONFIG_DEFAULT_AOF_NO_FSYNC_ON_REWRITE},
{"cluster-require-full-coverage",NULL,&g_pserver->cluster_require_full_coverage,CLUSTER_DEFAULT_REQUIRE_FULL_COVERAGE},
{"rdb-save-incremental-fsync",NULL,&g_pserver->rdb_save_incremental_fsync,1,CONFIG_DEFAULT_RDB_SAVE_INCREMENTAL_FSYNC},
{"aof-load-truncated",NULL,&g_pserver->aof_load_truncated,1,CONFIG_DEFAULT_AOF_LOAD_TRUNCATED},
{"aof-use-rdb-preamble",NULL,&g_pserver->aof_use_rdb_preamble,1,CONFIG_DEFAULT_AOF_USE_RDB_PREAMBLE},
{"cluster-replica-no-failover","cluster-slave-no-failover",&g_pserver->cluster_slave_no_failover,1,CLUSTER_DEFAULT_SLAVE_NO_FAILOVER},
{"replica-lazy-flush","slave-lazy-flush",&g_pserver->repl_slave_lazy_flush,1,CONFIG_DEFAULT_SLAVE_LAZY_FLUSH},
{"replica-serve-stale-data","slave-serve-stale-data",&g_pserver->repl_serve_stale_data,1,CONFIG_DEFAULT_SLAVE_SERVE_STALE_DATA},
{"replica-read-only","slave-read-only",&g_pserver->repl_slave_ro,1,CONFIG_DEFAULT_SLAVE_READ_ONLY},
{"replica-ignore-maxmemory","slave-ignore-maxmemory",&g_pserver->repl_slave_ignore_maxmemory,1,CONFIG_DEFAULT_SLAVE_IGNORE_MAXMEMORY},
{"multi-master",NULL,&g_pserver->enable_multimaster,false,CONFIG_DEFAULT_ENABLE_MULTIMASTER},
{NULL, NULL, 0, 0}
};
/*-----------------------------------------------------------------------------
* Enum access functions
*----------------------------------------------------------------------------*/
/* Get enum value from name. If there is no match INT_MIN is returned. */
int configEnumGetValue(configEnum *ce, char *name) {
while(ce->name != NULL) {
if (!strcasecmp(ce->name,name)) return ce->val;
ce++;
}
return INT_MIN;
}
/* Get enum name from value. If no match is found NULL is returned. */
const char *configEnumGetName(configEnum *ce, int val) {
while(ce->name != NULL) {
if (ce->val == val) return ce->name;
ce++;
}
return NULL;
}
/* Wrapper for configEnumGetName() returning "unknown" instead of NULL if
* there is no match. */
const char *configEnumGetNameOrUnknown(configEnum *ce, int val) {
const char *name = configEnumGetName(ce,val);
return name ? name : "unknown";
}
/* Used for INFO generation. */
const char *evictPolicyToString(void) {
return configEnumGetNameOrUnknown(maxmemory_policy_enum,g_pserver->maxmemory_policy);
}
/*-----------------------------------------------------------------------------
* Config file parsing
*----------------------------------------------------------------------------*/
int yesnotoi(char *s) {
if (!strcasecmp(s,"yes")) return 1;
else if (!strcasecmp(s,"no")) return 0;
else return -1;
}
void appendServerSaveParams(time_t seconds, int changes) {
g_pserver->saveparams = (saveparam*)zrealloc(g_pserver->saveparams,sizeof(struct saveparam)*(g_pserver->saveparamslen+1), MALLOC_LOCAL);
g_pserver->saveparams[g_pserver->saveparamslen].seconds = seconds;
g_pserver->saveparams[g_pserver->saveparamslen].changes = changes;
g_pserver->saveparamslen++;
}
void resetServerSaveParams(void) {
zfree(g_pserver->saveparams);
g_pserver->saveparams = NULL;
g_pserver->saveparamslen = 0;
}
void queueLoadModule(sds path, sds *argv, int argc) {
int i;
struct moduleLoadQueueEntry *loadmod;
loadmod = (moduleLoadQueueEntry*)zmalloc(sizeof(struct moduleLoadQueueEntry), MALLOC_LOCAL);
loadmod->argv = (robj**)zmalloc(sizeof(robj*)*argc, MALLOC_LOCAL);
loadmod->path = sdsnew(path);
loadmod->argc = argc;
for (i = 0; i < argc; i++) {
loadmod->argv[i] = createRawStringObject(argv[i],sdslen(argv[i]));
}
listAddNodeTail(g_pserver->loadmodule_queue,loadmod);
}
void loadServerConfigFromString(char *config) {
const char *err = NULL;
int linenum = 0, totlines, i;
int slaveof_linenum = 0;
sds *lines;
lines = sdssplitlen(config,strlen(config),"\n",1,&totlines);
for (i = 0; i < totlines; i++) {
sds *argv;
int argc;
linenum = i+1;
lines[i] = sdstrim(lines[i]," \t\r\n");
/* Skip comments and blank lines */
if (lines[i][0] == '#' || lines[i][0] == '\0') continue;
/* Split into arguments */
argv = sdssplitargs(lines[i],&argc);
if (argv == NULL) {
err = "Unbalanced quotes in configuration line";
goto loaderr;
}
/* Skip this line if the resulting command vector is empty. */
if (argc == 0) {
sdsfreesplitres(argv,argc);
continue;
}
sdstolower(argv[0]);
/* Iterate the configs that are standard */
int match = 0;
for (configYesNo *config = configs_yesno; config->name != NULL; config++) {
if ((!strcasecmp(argv[0],config->name) ||
(config->alias && !strcasecmp(argv[0],config->alias))) &&
(argc == 2))
{
if ((*(config->config) = yesnotoi(argv[1])) == -1) {
err = "argument must be 'yes' or 'no'"; goto loaderr;
}
match = 1;
break;
}
}
if (match) {
sdsfreesplitres(argv,argc);
continue;
}
/* Execute config directives */
if (!strcasecmp(argv[0],"timeout") && argc == 2) {
cserver.maxidletime = atoi(argv[1]);
if (cserver.maxidletime < 0) {
err = "Invalid timeout value"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"tcp-keepalive") && argc == 2) {
cserver.tcpkeepalive = atoi(argv[1]);
if (cserver.tcpkeepalive < 0) {
err = "Invalid tcp-keepalive value"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"port") && argc == 2) {
g_pserver->port = atoi(argv[1]);
if (g_pserver->port < 0 || g_pserver->port > 65535) {
err = "Invalid port"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"tcp-backlog") && argc == 2) {
g_pserver->tcp_backlog = atoi(argv[1]);
if (g_pserver->tcp_backlog < 0) {
err = "Invalid backlog value"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"bind") && argc >= 2) {
int j, addresses = argc-1;
if (addresses > CONFIG_BINDADDR_MAX) {
err = "Too many bind addresses specified"; goto loaderr;
}
for (j = 0; j < addresses; j++)
g_pserver->bindaddr[j] = zstrdup(argv[j+1]);
g_pserver->bindaddr_count = addresses;
} else if (!strcasecmp(argv[0],"unixsocket") && argc == 2) {
g_pserver->unixsocket = zstrdup(argv[1]);
} else if (!strcasecmp(argv[0],"unixsocketperm") && argc == 2) {
errno = 0;
g_pserver->unixsocketperm = (mode_t)strtol(argv[1], NULL, 8);
if (errno || g_pserver->unixsocketperm > 0777) {
err = "Invalid socket file permissions"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"save")) {
if (argc == 3) {
int seconds = atoi(argv[1]);
int changes = atoi(argv[2]);
if (seconds < 1 || changes < 0) {
err = "Invalid save parameters"; goto loaderr;
}
appendServerSaveParams(seconds,changes);
} else if (argc == 2 && !strcasecmp(argv[1],"")) {
resetServerSaveParams();
}
} else if (!strcasecmp(argv[0],"dir") && argc == 2) {
if (chdir(argv[1]) == -1) {
serverLog(LL_WARNING,"Can't chdir to '%s': %s",
argv[1], strerror(errno));
exit(1);
}
} else if (!strcasecmp(argv[0],"loglevel") && argc == 2) {
cserver.verbosity = configEnumGetValue(loglevel_enum,argv[1]);
if (cserver.verbosity == INT_MIN) {
err = "Invalid log level. "
"Must be one of debug, verbose, notice, warning";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"logfile") && argc == 2) {
FILE *logfp;
zfree(g_pserver->logfile);
g_pserver->logfile = zstrdup(argv[1]);
if (g_pserver->logfile[0] != '\0') {
/* Test if we are able to open the file. The server will not
* be able to abort just for this problem later... */
logfp = fopen(g_pserver->logfile,"a");
if (logfp == NULL) {
err = sdscatprintf(sdsempty(),
"Can't open the log file: %s", strerror(errno));
goto loaderr;
}
fclose(logfp);
}
} else if (!strcasecmp(argv[0],"aclfile") && argc == 2) {
zfree(g_pserver->acl_filename);
g_pserver->acl_filename = zstrdup(argv[1]);
} else if (!strcasecmp(argv[0],"syslog-enabled") && argc == 2) {
if ((g_pserver->syslog_enabled = yesnotoi(argv[1])) == -1) {
err = "argument must be 'yes' or 'no'"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"syslog-ident") && argc == 2) {
if (g_pserver->syslog_ident) zfree(g_pserver->syslog_ident);
g_pserver->syslog_ident = zstrdup(argv[1]);
} else if (!strcasecmp(argv[0],"syslog-facility") && argc == 2) {
g_pserver->syslog_facility =
configEnumGetValue(syslog_facility_enum,argv[1]);
if (g_pserver->syslog_facility == INT_MIN) {
err = "Invalid log facility. Must be one of USER or between LOCAL0-LOCAL7";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"databases") && argc == 2) {
cserver.dbnum = atoi(argv[1]);
if (cserver.dbnum < 1) {
err = "Invalid number of databases"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"include") && argc == 2) {
loadServerConfig(argv[1],NULL);
} else if (!strcasecmp(argv[0],"maxclients") && argc == 2) {
g_pserver->maxclients = atoi(argv[1]);
if (g_pserver->maxclients < 1) {
err = "Invalid max clients limit"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"maxmemory") && argc == 2) {
g_pserver->maxmemory = memtoll(argv[1],NULL);
} else if (!strcasecmp(argv[0],"maxmemory-policy") && argc == 2) {
g_pserver->maxmemory_policy =
configEnumGetValue(maxmemory_policy_enum,argv[1]);
if (g_pserver->maxmemory_policy == INT_MIN) {
err = "Invalid maxmemory policy";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"maxmemory-samples") && argc == 2) {
g_pserver->maxmemory_samples = atoi(argv[1]);
if (g_pserver->maxmemory_samples <= 0) {
err = "maxmemory-samples must be 1 or greater";
goto loaderr;
}
} else if ((!strcasecmp(argv[0],"proto-max-bulk-len")) && argc == 2) {
g_pserver->proto_max_bulk_len = memtoll(argv[1],NULL);
} else if ((!strcasecmp(argv[0],"client-query-buffer-limit")) && argc == 2) {
cserver.client_max_querybuf_len = memtoll(argv[1],NULL);
} else if (!strcasecmp(argv[0],"lfu-log-factor") && argc == 2) {
g_pserver->lfu_log_factor = atoi(argv[1]);
if (g_pserver->lfu_log_factor < 0) {
err = "lfu-log-factor must be 0 or greater";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"lfu-decay-time") && argc == 2) {
g_pserver->lfu_decay_time = atoi(argv[1]);
if (g_pserver->lfu_decay_time < 0) {
err = "lfu-decay-time must be 0 or greater";
goto loaderr;
}
} else if ((!strcasecmp(argv[0],"slaveof") ||
!strcasecmp(argv[0],"replicaof")) && argc == 3) {
slaveof_linenum = linenum;
replicationAddMaster(sdsnew(argv[1]), atoi(argv[2]));
} else if ((!strcasecmp(argv[0],"repl-ping-slave-period") ||
!strcasecmp(argv[0],"repl-ping-replica-period")) &&
argc == 2)
{
g_pserver->repl_ping_slave_period = atoi(argv[1]);
if (g_pserver->repl_ping_slave_period <= 0) {
err = "repl-ping-replica-period must be 1 or greater";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"repl-timeout") && argc == 2) {
g_pserver->repl_timeout = atoi(argv[1]);
if (g_pserver->repl_timeout <= 0) {
err = "repl-timeout must be 1 or greater";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"repl-diskless-sync-delay") && argc==2) {
g_pserver->repl_diskless_sync_delay = atoi(argv[1]);
if (g_pserver->repl_diskless_sync_delay < 0) {
err = "repl-diskless-sync-delay can't be negative";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"repl-backlog-size") && argc == 2) {
long long size = memtoll(argv[1],NULL);
if (size <= 0) {
err = "repl-backlog-size must be 1 or greater.";
goto loaderr;
}
resizeReplicationBacklog(size);
} else if (!strcasecmp(argv[0],"repl-backlog-ttl") && argc == 2) {
g_pserver->repl_backlog_time_limit = atoi(argv[1]);
if (g_pserver->repl_backlog_time_limit < 0) {
err = "repl-backlog-ttl can't be negative ";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"masteruser") && argc == 2) {
zfree(cserver.default_masteruser);
cserver.default_masteruser = argv[1][0] ? zstrdup(argv[1]) : NULL;
} else if (!strcasecmp(argv[0],"masterauth") && argc == 2) {
zfree(cserver.default_masterauth);
cserver.default_masterauth = argv[1][0] ? zstrdup(argv[1]) : NULL;
// Loop through all existing master infos and update them (in case this came after the replicaof config)
updateMasterAuth();
} else if (!strcasecmp(argv[0],"activedefrag") && argc == 2) {
if ((cserver.active_defrag_enabled = yesnotoi(argv[1])) == -1) {
err = "argument must be 'yes' or 'no'"; goto loaderr;
}
if (cserver.active_defrag_enabled) {
#ifndef HAVE_DEFRAG
err = "active defrag can't be enabled without proper jemalloc support"; goto loaderr;
#endif
}
} else if (!strcasecmp(argv[0],"hz") && argc == 2) {
g_pserver->config_hz = atoi(argv[1]);
if (g_pserver->config_hz < CONFIG_MIN_HZ) g_pserver->config_hz = CONFIG_MIN_HZ;
if (g_pserver->config_hz > CONFIG_MAX_HZ) g_pserver->config_hz = CONFIG_MAX_HZ;
} else if (!strcasecmp(argv[0],"appendonly") && argc == 2) {
int yes;
if ((yes = yesnotoi(argv[1])) == -1) {
err = "argument must be 'yes' or 'no'"; goto loaderr;
}
g_pserver->aof_state = yes ? AOF_ON : AOF_OFF;
} else if (!strcasecmp(argv[0],"appendfilename") && argc == 2) {
if (!pathIsBaseName(argv[1])) {
err = "appendfilename can't be a path, just a filename";
goto loaderr;
}
zfree(g_pserver->aof_filename);
g_pserver->aof_filename = zstrdup(argv[1]);
} else if (!strcasecmp(argv[0],"appendfsync") && argc == 2) {
g_pserver->aof_fsync = configEnumGetValue(aof_fsync_enum,argv[1]);
if (g_pserver->aof_fsync == INT_MIN) {
err = "argument must be 'no', 'always' or 'everysec'";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"auto-aof-rewrite-percentage") &&
argc == 2)
{
g_pserver->aof_rewrite_perc = atoi(argv[1]);
if (g_pserver->aof_rewrite_perc < 0) {
err = "Invalid negative percentage for AOF auto rewrite";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"auto-aof-rewrite-min-size") &&
argc == 2)
{
g_pserver->aof_rewrite_min_size = memtoll(argv[1],NULL);
} else if (!strcasecmp(argv[0],"requirepass") && argc == 2) {
if (strlen(argv[1]) > CONFIG_AUTHPASS_MAX_LEN) {
err = "Password is longer than CONFIG_AUTHPASS_MAX_LEN";
goto loaderr;
}
/* The old "requirepass" directive just translates to setting
* a password to the default user. */
ACLSetUser(DefaultUser,"resetpass",-1);
sds aclop = sdscatprintf(sdsempty(),">%s",argv[1]);
ACLSetUser(DefaultUser,aclop,sdslen(aclop));
sdsfree(aclop);
} else if (!strcasecmp(argv[0],"pidfile") && argc == 2) {
zfree(cserver.pidfile);
cserver.pidfile = zstrdup(argv[1]);
} else if (!strcasecmp(argv[0],"dbfilename") && argc == 2) {
if (!pathIsBaseName(argv[1])) {
err = "dbfilename can't be a path, just a filename";
goto loaderr;
}
zfree(g_pserver->rdb_filename);
g_pserver->rdb_filename = zstrdup(argv[1]);
} else if(!strcasecmp(argv[0],"db-s3-object") && argc == 2) {
zfree(g_pserver->rdb_s3bucketpath);
g_pserver->rdb_s3bucketpath = zstrdup(argv[1]);
} else if (!strcasecmp(argv[0],"active-defrag-threshold-lower") && argc == 2) {
cserver.active_defrag_threshold_lower = atoi(argv[1]);
if (cserver.active_defrag_threshold_lower < 0 ||
cserver.active_defrag_threshold_lower > 1000) {
err = "active-defrag-threshold-lower must be between 0 and 1000";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"active-defrag-threshold-upper") && argc == 2) {
cserver.active_defrag_threshold_upper = atoi(argv[1]);
if (cserver.active_defrag_threshold_upper < 0 ||
cserver.active_defrag_threshold_upper > 1000) {
err = "active-defrag-threshold-upper must be between 0 and 1000";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"active-defrag-ignore-bytes") && argc == 2) {
cserver.active_defrag_ignore_bytes = memtoll(argv[1], NULL);
if (cserver.active_defrag_ignore_bytes <= 0) {
err = "active-defrag-ignore-bytes must above 0";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"active-defrag-cycle-min") && argc == 2) {
cserver.active_defrag_cycle_min = atoi(argv[1]);
if (cserver.active_defrag_cycle_min < 1 || cserver.active_defrag_cycle_min > 99) {
err = "active-defrag-cycle-min must be between 1 and 99";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"active-defrag-cycle-max") && argc == 2) {
cserver.active_defrag_cycle_max = atoi(argv[1]);
if (cserver.active_defrag_cycle_max < 1 || cserver.active_defrag_cycle_max > 99) {
err = "active-defrag-cycle-max must be between 1 and 99";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"active-defrag-max-scan-fields") && argc == 2) {
cserver.active_defrag_max_scan_fields = strtoll(argv[1],NULL,10);
if (cserver.active_defrag_max_scan_fields < 1) {
err = "active-defrag-max-scan-fields must be positive";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"hash-max-ziplist-entries") && argc == 2) {
g_pserver->hash_max_ziplist_entries = memtoll(argv[1], NULL);
} else if (!strcasecmp(argv[0],"hash-max-ziplist-value") && argc == 2) {
g_pserver->hash_max_ziplist_value = memtoll(argv[1], NULL);
} else if (!strcasecmp(argv[0],"stream-node-max-bytes") && argc == 2) {
g_pserver->stream_node_max_bytes = memtoll(argv[1], NULL);
} else if (!strcasecmp(argv[0],"stream-node-max-entries") && argc == 2) {
g_pserver->stream_node_max_entries = atoi(argv[1]);
} else if (!strcasecmp(argv[0],"list-max-ziplist-entries") && argc == 2){
/* DEAD OPTION */
} else if (!strcasecmp(argv[0],"list-max-ziplist-value") && argc == 2) {
/* DEAD OPTION */
} else if (!strcasecmp(argv[0],"list-max-ziplist-size") && argc == 2) {
g_pserver->list_max_ziplist_size = atoi(argv[1]);
} else if (!strcasecmp(argv[0],"list-compress-depth") && argc == 2) {
g_pserver->list_compress_depth = atoi(argv[1]);
} else if (!strcasecmp(argv[0],"set-max-intset-entries") && argc == 2) {
g_pserver->set_max_intset_entries = memtoll(argv[1], NULL);
} else if (!strcasecmp(argv[0],"zset-max-ziplist-entries") && argc == 2) {
g_pserver->zset_max_ziplist_entries = memtoll(argv[1], NULL);
} else if (!strcasecmp(argv[0],"zset-max-ziplist-value") && argc == 2) {
g_pserver->zset_max_ziplist_value = memtoll(argv[1], NULL);
} else if (!strcasecmp(argv[0],"hll-sparse-max-bytes") && argc == 2) {
g_pserver->hll_sparse_max_bytes = memtoll(argv[1], NULL);
} else if (!strcasecmp(argv[0],"rename-command") && argc == 3) {
struct redisCommand *cmd = lookupCommand(argv[1]);
int retval;
if (!cmd) {
err = "No such command in rename-command";
goto loaderr;
}
/* If the target command name is the empty string we just
* remove it from the command table. */
retval = dictDelete(g_pserver->commands, argv[1]);
serverAssert(retval == DICT_OK);
/* Otherwise we re-add the command under a different name. */
if (sdslen(argv[2]) != 0) {
sds copy = sdsdup(argv[2]);
retval = dictAdd(g_pserver->commands, copy, cmd);
if (retval != DICT_OK) {
sdsfree(copy);
err = "Target command name already exists"; goto loaderr;
}
}
} else if (!strcasecmp(argv[0],"cluster-enabled") && argc == 2) {
if ((g_pserver->cluster_enabled = yesnotoi(argv[1])) == -1) {
err = "argument must be 'yes' or 'no'"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"cluster-config-file") && argc == 2) {
zfree(g_pserver->cluster_configfile);
g_pserver->cluster_configfile = zstrdup(argv[1]);
} else if (!strcasecmp(argv[0],"cluster-announce-ip") && argc == 2) {
zfree(g_pserver->cluster_announce_ip);
g_pserver->cluster_announce_ip = zstrdup(argv[1]);
} else if (!strcasecmp(argv[0],"cluster-announce-port") && argc == 2) {
g_pserver->cluster_announce_port = atoi(argv[1]);
if (g_pserver->cluster_announce_port < 0 ||
g_pserver->cluster_announce_port > 65535)
{
err = "Invalid port"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"cluster-announce-bus-port") &&
argc == 2)
{
g_pserver->cluster_announce_bus_port = atoi(argv[1]);
if (g_pserver->cluster_announce_bus_port < 0 ||
g_pserver->cluster_announce_bus_port > 65535)
{
err = "Invalid port"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"cluster-node-timeout") && argc == 2) {
g_pserver->cluster_node_timeout = strtoll(argv[1],NULL,10);
if (g_pserver->cluster_node_timeout <= 0) {
err = "cluster node timeout must be 1 or greater"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"cluster-migration-barrier")
&& argc == 2)
{
g_pserver->cluster_migration_barrier = atoi(argv[1]);
if (g_pserver->cluster_migration_barrier < 0) {
err = "cluster migration barrier must zero or positive";
goto loaderr;
}
} else if ((!strcasecmp(argv[0],"cluster-slave-validity-factor") ||
!strcasecmp(argv[0],"cluster-replica-validity-factor"))
&& argc == 2)
{
g_pserver->cluster_slave_validity_factor = atoi(argv[1]);
if (g_pserver->cluster_slave_validity_factor < 0) {
err = "cluster replica validity factor must be zero or positive";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"lua-time-limit") && argc == 2) {
g_pserver->lua_time_limit = strtoll(argv[1],NULL,10);
} else if (!strcasecmp(argv[0],"lua-replicate-commands") && argc == 2) {
g_pserver->lua_always_replicate_commands = yesnotoi(argv[1]);
} else if (!strcasecmp(argv[0],"slowlog-log-slower-than") &&
argc == 2)
{
g_pserver->slowlog_log_slower_than = strtoll(argv[1],NULL,10);
} else if (!strcasecmp(argv[0],"latency-monitor-threshold") &&
argc == 2)
{
g_pserver->latency_monitor_threshold = strtoll(argv[1],NULL,10);
if (g_pserver->latency_monitor_threshold < 0) {
err = "The latency threshold can't be negative";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"slowlog-max-len") && argc == 2) {
g_pserver->slowlog_max_len = strtoll(argv[1],NULL,10);
} else if (!strcasecmp(argv[0],"client-output-buffer-limit") &&
argc == 5)
{
int type = getClientTypeByName(argv[1]);
unsigned long long hard, soft;
int soft_seconds;
if (type == -1 || type == CLIENT_TYPE_MASTER) {
err = "Unrecognized client limit class: the user specified "
"an invalid one, or 'master' which has no buffer limits.";
goto loaderr;
}
hard = memtoll(argv[2],NULL);
soft = memtoll(argv[3],NULL);
soft_seconds = atoi(argv[4]);
if (soft_seconds < 0) {
err = "Negative number of seconds in soft limit is invalid";
goto loaderr;
}
cserver.client_obuf_limits[type].hard_limit_bytes = hard;
cserver.client_obuf_limits[type].soft_limit_bytes = soft;
cserver.client_obuf_limits[type].soft_limit_seconds = soft_seconds;
} else if ((!strcasecmp(argv[0],"slave-priority") ||
!strcasecmp(argv[0],"replica-priority")) && argc == 2)
{
g_pserver->slave_priority = atoi(argv[1]);
} else if ((!strcasecmp(argv[0],"slave-announce-ip") ||
!strcasecmp(argv[0],"replica-announce-ip")) && argc == 2)
{
zfree(g_pserver->slave_announce_ip);
g_pserver->slave_announce_ip = zstrdup(argv[1]);
} else if ((!strcasecmp(argv[0],"slave-announce-port") ||
!strcasecmp(argv[0],"replica-announce-port")) && argc == 2)
{
g_pserver->slave_announce_port = atoi(argv[1]);
if (g_pserver->slave_announce_port < 0 ||
g_pserver->slave_announce_port > 65535)
{
err = "Invalid port"; goto loaderr;
}
} else if ((!strcasecmp(argv[0],"min-slaves-to-write") ||
!strcasecmp(argv[0],"min-replicas-to-write")) && argc == 2)
{
g_pserver->repl_min_slaves_to_write = atoi(argv[1]);
if (g_pserver->repl_min_slaves_to_write < 0) {
err = "Invalid value for min-replicas-to-write."; goto loaderr;
}
} else if ((!strcasecmp(argv[0],"min-slaves-max-lag") ||
!strcasecmp(argv[0],"min-replicas-max-lag")) && argc == 2)
{
g_pserver->repl_min_slaves_max_lag = atoi(argv[1]);
if (g_pserver->repl_min_slaves_max_lag < 0) {
err = "Invalid value for min-replicas-max-lag."; goto loaderr;
}
} else if (!strcasecmp(argv[0],"notify-keyspace-events") && argc == 2) {
int flags = keyspaceEventsStringToFlags(argv[1]);
if (flags == -1) {
err = "Invalid event class character. Use 'g$lshzxeA'.";
goto loaderr;
}
g_pserver->notify_keyspace_events = flags;
} else if (!strcasecmp(argv[0],"supervised") && argc == 2) {
cserver.supervised_mode =
configEnumGetValue(supervised_mode_enum,argv[1]);
if (cserver.supervised_mode == INT_MIN) {
err = "Invalid option for 'supervised'. "
"Allowed values: 'upstart', 'systemd', 'auto', or 'no'";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"user") && argc >= 2) {
int argc_err;
if (ACLAppendUserForLoading(argv,argc,&argc_err) == C_ERR) {
char buf[1024];
const char *errmsg = ACLSetUserStringError();
snprintf(buf,sizeof(buf),"Error in user declaration '%s': %s",
argv[argc_err],errmsg);
err = buf;
goto loaderr;
}
} else if (!strcasecmp(argv[0],"loadmodule") && argc >= 2) {
queueLoadModule(argv[1],&argv[2],argc-2);
} else if (!strcasecmp(argv[0],"sentinel")) {
/* argc == 1 is handled by main() as we need to enter the sentinel
* mode ASAP. */
if (argc != 1) {
if (!g_pserver->sentinel_mode) {
err = "sentinel directive while not in sentinel mode";
goto loaderr;
}
err = sentinelHandleConfiguration(argv+1,argc-1);
if (err) goto loaderr;
}
} else if (!strcasecmp(argv[0],"scratch-file-path")) {
#ifdef USE_MEMKIND
storage_init(argv[1], g_pserver->maxmemory);
#else
err = "KeyDB not compliled with scratch-file support.";
goto loaderr;
#endif
} else if (!strcasecmp(argv[0],"server-threads") && argc == 2) {
cserver.cthreads = atoi(argv[1]);
if (cserver.cthreads <= 0 || cserver.cthreads > MAX_EVENT_LOOPS) {
err = "Invalid number of threads specified";
goto loaderr;
}
} else if (!strcasecmp(argv[0],"server-thread-affinity") && argc == 2) {
if (strcasecmp(argv[1], "true") == 0) {
cserver.fThreadAffinity = TRUE;
} else if (strcasecmp(argv[1], "false") == 0) {
cserver.fThreadAffinity = FALSE;
} else {
err = "Unknown argument: server-thread-affinity expects either true or false";
goto loaderr;
}
} else if (!strcasecmp(argv[0], "active-replica") && argc == 2) {
g_pserver->fActiveReplica = yesnotoi(argv[1]);
if (g_pserver->repl_slave_ro) {
g_pserver->repl_slave_ro = FALSE;
serverLog(LL_NOTICE, "Notice: \"active-replica yes\" implies \"replica-read-only no\"");
}
if (g_pserver->fActiveReplica == -1) {
g_pserver->fActiveReplica = CONFIG_DEFAULT_ACTIVE_REPLICA;
err = "argument must be 'yes' or 'no'"; goto loaderr;
}
} else if (!strcasecmp(argv[0], "version-override") && argc == 2) {
KEYDB_SET_VERSION = zstrdup(argv[1]);
serverLog(LL_WARNING, "Warning version is overriden to: %s\n", KEYDB_SET_VERSION);
} else if (!strcasecmp(argv[0],"testmode") && argc == 2){
g_fTestMode = yesnotoi(argv[1]);
} else if (!strcasecmp(argv[0],"rdbfuzz-mode")) {
// NOP, handled in main
} else if (!strcasecmp(argv[0],"enable-pro")) {
cserver.fUsePro = true;
} else {
err = "Bad directive or wrong number of arguments"; goto loaderr;
}
sdsfreesplitres(argv,argc);
}
/* Sanity checks. */
if (g_pserver->cluster_enabled && listLength(g_pserver->masters)) {
linenum = slaveof_linenum;
i = linenum-1;
err = "replicaof directive not allowed in cluster mode";
goto loaderr;
}
sdsfreesplitres(lines,totlines);
return;
loaderr:
fprintf(stderr, "\n*** FATAL CONFIG FILE ERROR ***\n");
fprintf(stderr, "Reading the configuration file, at line %d\n", linenum);
fprintf(stderr, ">>> '%s'\n", lines[i]);
fprintf(stderr, "%s\n", err);
exit(1);
}
/* Load the server configuration from the specified filename.
* The function appends the additional configuration directives stored
* in the 'options' string to the config file before loading.
*
* Both filename and options can be NULL, in such a case are considered
* empty. This way loadServerConfig can be used to just load a file or
* just load a string. */
void loadServerConfig(char *filename, char *options) {
sds config = sdsempty();
char buf[CONFIG_MAX_LINE+1];
/* Load the file content */
if (filename) {
FILE *fp;
if (filename[0] == '-' && filename[1] == '\0') {
fp = stdin;
} else {
if ((fp = fopen(filename,"r")) == NULL) {
serverLog(LL_WARNING,
"Fatal error, can't open config file '%s'", filename);
exit(1);
}
}
while(fgets(buf,CONFIG_MAX_LINE+1,fp) != NULL)
config = sdscat(config,buf);
if (fp != stdin) fclose(fp);
}
/* Append the additional options */
if (options) {
config = sdscat(config,"\n");
config = sdscat(config,options);
}
loadServerConfigFromString(config);
sdsfree(config);
}
/*-----------------------------------------------------------------------------
* CONFIG SET implementation
*----------------------------------------------------------------------------*/
#define config_set_bool_field(_name,_var) \
} else if (!strcasecmp(szFromObj(c->argv[2]),_name)) { \
int yn = yesnotoi(szFromObj(o)); \
if (yn == -1) goto badfmt; \
_var = yn;
#define config_set_numerical_field(_name,_var,min,max) \
} else if (!strcasecmp(szFromObj(c->argv[2]),_name)) { \
if (getLongLongFromObject(o,&ll) == C_ERR) goto badfmt; \
if (min != LLONG_MIN && ll < min) goto badfmt; \
if (max != LLONG_MAX && ll > max) goto badfmt; \
_var = ll;
#define config_set_memory_field(_name,_var) \
} else if (!strcasecmp(szFromObj(c->argv[2]),_name)) { \
ll = memtoll(szFromObj(o),&err); \
if (err || ll < 0) goto badfmt; \
_var = ll;
#define config_set_enum_field(_name,_var,_enumvar) \
} else if (!strcasecmp(szFromObj(c->argv[2]),_name)) { \
int enumval = configEnumGetValue(_enumvar,szFromObj(o)); \
if (enumval == INT_MIN) goto badfmt; \
_var = enumval;
#define config_set_special_field(_name) \
} else if (!strcasecmp(szFromObj(c->argv[2]),_name)) {
#define config_set_special_field_with_alias(_name1,_name2) \
} else if (!strcasecmp(szFromObj(c->argv[2]),_name1) || \
!strcasecmp(szFromObj(c->argv[2]),_name2)) {
#define config_set_else } else
void configSetCommand(client *c) {
robj *o;
long long ll;
int err;
serverAssertWithInfo(c,c->argv[2],sdsEncodedObject(c->argv[2]));
serverAssertWithInfo(c,c->argv[3],sdsEncodedObject(c->argv[3]));
o = c->argv[3];
/* Iterate the configs that are standard */
for (configYesNo *config = configs_yesno; config->name != NULL; config++) {
if(config->modifiable && (!strcasecmp(szFromObj(c->argv[2]),config->name) ||
(config->alias && !strcasecmp(szFromObj(c->argv[2]),config->alias))))
{
int yn = yesnotoi(szFromObj(o));
if (yn == -1) goto badfmt;
*(config->config) = yn;
addReply(c,shared.ok);
return;
}
}
if (0) { /* this starts the config_set macros else-if chain. */
/* Special fields that can't be handled with general macros. */
config_set_special_field("dbfilename") {
if (!pathIsBaseName(szFromObj(o))) {
addReplyError(c, "dbfilename can't be a path, just a filename");
return;
}
zfree(g_pserver->rdb_filename);
g_pserver->rdb_filename = zstrdup(szFromObj(o));
} config_set_special_field("requirepass") {
if (sdslen(szFromObj(o)) > CONFIG_AUTHPASS_MAX_LEN) goto badfmt;
/* The old "requirepass" directive just translates to setting
* a password to the default user. */
ACLSetUser(DefaultUser,"resetpass",-1);
sds aclop = sdscatprintf(sdsempty(),">%s",(char*)ptrFromObj(o));
ACLSetUser(DefaultUser,aclop,sdslen(aclop));
sdsfree(aclop);
} config_set_special_field("masteruser") {
zfree(cserver.default_masteruser);
cserver.default_masteruser = ((char*)ptrFromObj(o))[0] ? zstrdup(szFromObj(o)) : NULL;
} config_set_special_field("masterauth") {
zfree(cserver.default_masterauth);
cserver.default_masterauth = ((char*)ptrFromObj(o))[0] ? zstrdup(szFromObj(o)) : NULL;
} config_set_special_field("cluster-announce-ip") {
zfree(g_pserver->cluster_announce_ip);
g_pserver->cluster_announce_ip = ((char*)ptrFromObj(o))[0] ? zstrdup(szFromObj(o)) : NULL;
} config_set_special_field("maxclients") {
int orig_value = g_pserver->maxclients;
if (getLongLongFromObject(o,&ll) == C_ERR || ll < 1) goto badfmt;
/* Try to check if the OS is capable of supporting so many FDs. */
g_pserver->maxclients = ll;
serverAssert(FALSE);
if (ll > orig_value) {
adjustOpenFilesLimit();
if (g_pserver->maxclients != ll) {
addReplyErrorFormat(c,"The operating system is not able to handle the specified number of clients, try with %d", g_pserver->maxclients);
g_pserver->maxclients = orig_value;
return;
}
if ((unsigned int) aeGetSetSize(g_pserver->rgthreadvar[IDX_EVENT_LOOP_MAIN].el) <
g_pserver->maxclients + CONFIG_FDSET_INCR)
{
for (int iel = 0; iel < cserver.cthreads; ++iel)
{
if (aeResizeSetSize(g_pserver->rgthreadvar[iel].el,
g_pserver->maxclients + CONFIG_FDSET_INCR) == AE_ERR)
{
addReplyError(c,"The event loop API used by Redis is not able to handle the specified number of clients");
g_pserver->maxclients = orig_value;
return;
}
}
}
}
} config_set_special_field("appendonly") {
int enable = yesnotoi(szFromObj(o));
if (enable == -1) goto badfmt;
if (enable == 0 && g_pserver->aof_state != AOF_OFF) {
stopAppendOnly();
} else if (enable && g_pserver->aof_state == AOF_OFF) {
if (startAppendOnly() == C_ERR) {
addReplyError(c,
"Unable to turn on AOF. Check server logs.");
return;
}
}
} config_set_special_field("save") {
int vlen, j;
sds *v = sdssplitlen(szFromObj(o),sdslen(szFromObj(o))," ",1,&vlen);