3251 lines
137 KiB
C
3251 lines
137 KiB
C
/* Configuration file parsing and CONFIG GET/SET commands implementation.
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*
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* Copyright (c) 2009-2012, Salvatore Sanfilippo <antirez at gmail dot com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Redis nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "server.h"
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#include "cluster.h"
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <glob.h>
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#include <string.h>
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/*-----------------------------------------------------------------------------
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* Config file name-value maps.
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*----------------------------------------------------------------------------*/
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typedef struct deprecatedConfig {
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const char *name;
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const int argc_min;
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const int argc_max;
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} deprecatedConfig;
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configEnum maxmemory_policy_enum[] = {
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{"volatile-lru", MAXMEMORY_VOLATILE_LRU},
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{"volatile-lfu", MAXMEMORY_VOLATILE_LFU},
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{"volatile-random",MAXMEMORY_VOLATILE_RANDOM},
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{"volatile-ttl",MAXMEMORY_VOLATILE_TTL},
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{"allkeys-lru",MAXMEMORY_ALLKEYS_LRU},
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{"allkeys-lfu",MAXMEMORY_ALLKEYS_LFU},
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{"allkeys-random",MAXMEMORY_ALLKEYS_RANDOM},
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{"noeviction",MAXMEMORY_NO_EVICTION},
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{NULL, 0}
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};
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configEnum syslog_facility_enum[] = {
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{"user", LOG_USER},
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{"local0", LOG_LOCAL0},
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{"local1", LOG_LOCAL1},
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{"local2", LOG_LOCAL2},
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{"local3", LOG_LOCAL3},
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{"local4", LOG_LOCAL4},
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{"local5", LOG_LOCAL5},
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{"local6", LOG_LOCAL6},
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{"local7", LOG_LOCAL7},
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{NULL, 0}
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};
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configEnum loglevel_enum[] = {
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{"debug", LL_DEBUG},
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{"verbose", LL_VERBOSE},
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{"notice", LL_NOTICE},
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{"warning", LL_WARNING},
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{NULL,0}
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};
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configEnum supervised_mode_enum[] = {
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{"upstart", SUPERVISED_UPSTART},
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{"systemd", SUPERVISED_SYSTEMD},
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{"auto", SUPERVISED_AUTODETECT},
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{"no", SUPERVISED_NONE},
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{NULL, 0}
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};
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configEnum aof_fsync_enum[] = {
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{"everysec", AOF_FSYNC_EVERYSEC},
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{"always", AOF_FSYNC_ALWAYS},
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{"no", AOF_FSYNC_NO},
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{NULL, 0}
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};
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configEnum shutdown_on_sig_enum[] = {
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{"default", 0},
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{"save", SHUTDOWN_SAVE},
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{"nosave", SHUTDOWN_NOSAVE},
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{"now", SHUTDOWN_NOW},
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{"force", SHUTDOWN_FORCE},
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{NULL, 0}
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};
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configEnum repl_diskless_load_enum[] = {
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{"disabled", REPL_DISKLESS_LOAD_DISABLED},
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{"on-empty-db", REPL_DISKLESS_LOAD_WHEN_DB_EMPTY},
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{"swapdb", REPL_DISKLESS_LOAD_SWAPDB},
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{NULL, 0}
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};
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configEnum tls_auth_clients_enum[] = {
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{"no", TLS_CLIENT_AUTH_NO},
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{"yes", TLS_CLIENT_AUTH_YES},
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{"optional", TLS_CLIENT_AUTH_OPTIONAL},
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{NULL, 0}
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};
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configEnum oom_score_adj_enum[] = {
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{"no", OOM_SCORE_ADJ_NO},
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{"yes", OOM_SCORE_RELATIVE},
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{"relative", OOM_SCORE_RELATIVE},
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{"absolute", OOM_SCORE_ADJ_ABSOLUTE},
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{NULL, 0}
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};
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configEnum acl_pubsub_default_enum[] = {
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{"allchannels", SELECTOR_FLAG_ALLCHANNELS},
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{"resetchannels", 0},
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{NULL, 0}
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};
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configEnum sanitize_dump_payload_enum[] = {
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{"no", SANITIZE_DUMP_NO},
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{"yes", SANITIZE_DUMP_YES},
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{"clients", SANITIZE_DUMP_CLIENTS},
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{NULL, 0}
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};
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configEnum protected_action_enum[] = {
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{"no", PROTECTED_ACTION_ALLOWED_NO},
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{"yes", PROTECTED_ACTION_ALLOWED_YES},
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{"local", PROTECTED_ACTION_ALLOWED_LOCAL},
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{NULL, 0}
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};
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configEnum cluster_preferred_endpoint_type_enum[] = {
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{"ip", CLUSTER_ENDPOINT_TYPE_IP},
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{"hostname", CLUSTER_ENDPOINT_TYPE_HOSTNAME},
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{"unknown-endpoint", CLUSTER_ENDPOINT_TYPE_UNKNOWN_ENDPOINT},
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{NULL, 0}
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};
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configEnum propagation_error_behavior_enum[] = {
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{"ignore", PROPAGATION_ERR_BEHAVIOR_IGNORE},
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{"panic", PROPAGATION_ERR_BEHAVIOR_PANIC},
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{"panic-on-replicas", PROPAGATION_ERR_BEHAVIOR_PANIC_ON_REPLICAS},
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{NULL, 0}
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};
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/* Output buffer limits presets. */
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clientBufferLimitsConfig clientBufferLimitsDefaults[CLIENT_TYPE_OBUF_COUNT] = {
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{0, 0, 0}, /* normal */
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{1024*1024*256, 1024*1024*64, 60}, /* slave */
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{1024*1024*32, 1024*1024*8, 60} /* pubsub */
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};
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/* OOM Score defaults */
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int configOOMScoreAdjValuesDefaults[CONFIG_OOM_COUNT] = { 0, 200, 800 };
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/* Generic config infrastructure function pointers
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* int is_valid_fn(val, err)
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* Return 1 when val is valid, and 0 when invalid.
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* Optionally set err to a static error string.
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*/
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/* Configuration values that require no special handling to set, get, load or
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* rewrite. */
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typedef struct boolConfigData {
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int *config; /* The pointer to the server config this value is stored in */
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int default_value; /* The default value of the config on rewrite */
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int (*is_valid_fn)(int val, const char **err); /* Optional function to check validity of new value (generic doc above) */
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} boolConfigData;
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typedef struct stringConfigData {
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char **config; /* Pointer to the server config this value is stored in. */
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const char *default_value; /* Default value of the config on rewrite. */
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int (*is_valid_fn)(char* val, const char **err); /* Optional function to check validity of new value (generic doc above) */
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int convert_empty_to_null; /* Boolean indicating if empty strings should
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be stored as a NULL value. */
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} stringConfigData;
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typedef struct sdsConfigData {
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sds *config; /* Pointer to the server config this value is stored in. */
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char *default_value; /* Default value of the config on rewrite. */
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int (*is_valid_fn)(sds val, const char **err); /* Optional function to check validity of new value (generic doc above) */
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int convert_empty_to_null; /* Boolean indicating if empty SDS strings should
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be stored as a NULL value. */
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} sdsConfigData;
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typedef struct enumConfigData {
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int *config; /* The pointer to the server config this value is stored in */
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configEnum *enum_value; /* The underlying enum type this data represents */
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int default_value; /* The default value of the config on rewrite */
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int (*is_valid_fn)(int val, const char **err); /* Optional function to check validity of new value (generic doc above) */
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} enumConfigData;
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typedef enum numericType {
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NUMERIC_TYPE_INT,
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NUMERIC_TYPE_UINT,
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NUMERIC_TYPE_LONG,
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NUMERIC_TYPE_ULONG,
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NUMERIC_TYPE_LONG_LONG,
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NUMERIC_TYPE_ULONG_LONG,
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NUMERIC_TYPE_SIZE_T,
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NUMERIC_TYPE_SSIZE_T,
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NUMERIC_TYPE_OFF_T,
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NUMERIC_TYPE_TIME_T,
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} numericType;
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typedef struct numericConfigData {
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union {
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int *i;
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unsigned int *ui;
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long *l;
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unsigned long *ul;
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long long *ll;
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unsigned long long *ull;
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size_t *st;
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ssize_t *sst;
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off_t *ot;
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time_t *tt;
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} config; /* The pointer to the numeric config this value is stored in */
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unsigned int flags;
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numericType numeric_type; /* An enum indicating the type of this value */
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long long lower_bound; /* The lower bound of this numeric value */
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long long upper_bound; /* The upper bound of this numeric value */
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long long default_value; /* The default value of the config on rewrite */
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int (*is_valid_fn)(long long val, const char **err); /* Optional function to check validity of new value (generic doc above) */
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} numericConfigData;
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typedef union typeData {
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boolConfigData yesno;
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stringConfigData string;
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sdsConfigData sds;
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enumConfigData enumd;
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numericConfigData numeric;
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} typeData;
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typedef struct standardConfig standardConfig;
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typedef int (*apply_fn)(const char **err);
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typedef struct typeInterface {
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/* Called on server start, to init the server with default value */
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void (*init)(standardConfig *config);
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/* Called on server startup and CONFIG SET, returns 1 on success,
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* 2 meaning no actual change done, 0 on error and can set a verbose err
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* string */
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int (*set)(standardConfig *config, sds *argv, int argc, const char **err);
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/* Optional: called after `set()` to apply the config change. Used only in
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* the context of CONFIG SET. Returns 1 on success, 0 on failure.
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* Optionally set err to a static error string. */
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apply_fn apply;
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/* Called on CONFIG GET, returns sds to be used in reply */
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sds (*get)(standardConfig *config);
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/* Called on CONFIG REWRITE, required to rewrite the config state */
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void (*rewrite)(standardConfig *config, const char *name, struct rewriteConfigState *state);
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} typeInterface;
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struct standardConfig {
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const char *name; /* The user visible name of this config */
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const char *alias; /* An alias that can also be used for this config */
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unsigned int flags; /* Flags for this specific config */
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typeInterface interface; /* The function pointers that define the type interface */
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typeData data; /* The type specific data exposed used by the interface */
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configType type; /* The type of config this is. */
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void *privdata; /* privdata for this config, for module configs this is a ModuleConfig struct */
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};
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dict *configs = NULL; /* Runtime config values */
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/* Lookup a config by the provided sds string name, or return NULL
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* if the config does not exist */
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static standardConfig *lookupConfig(sds name) {
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dictEntry *de = dictFind(configs, name);
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return de ? dictGetVal(de) : NULL;
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}
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/*-----------------------------------------------------------------------------
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* Enum access functions
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*----------------------------------------------------------------------------*/
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/* Get enum value from name. If there is no match INT_MIN is returned. */
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int configEnumGetValue(configEnum *ce, sds *argv, int argc, int bitflags) {
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if (argc == 0 || (!bitflags && argc != 1)) return INT_MIN;
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int values = 0;
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for (int i = 0; i < argc; i++) {
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int matched = 0;
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for (configEnum *ceItem = ce; ceItem->name != NULL; ceItem++) {
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if (!strcasecmp(argv[i],ceItem->name)) {
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values |= ceItem->val;
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matched = 1;
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}
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}
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if (!matched) return INT_MIN;
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}
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return values;
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}
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/* Get enum name/s from value. If no matches are found "unknown" is returned. */
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static sds configEnumGetName(configEnum *ce, int values, int bitflags) {
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sds names = NULL;
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int matches = 0;
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for( ; ce->name != NULL; ce++) {
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if (values == ce->val) { /* Short path for perfect match */
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sdsfree(names);
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return sdsnew(ce->name);
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}
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if (bitflags && (values & ce->val)) {
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names = names ? sdscatfmt(names, " %s", ce->name) : sdsnew(ce->name);
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matches |= ce->val;
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}
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}
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if (!names || values != matches) {
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sdsfree(names);
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return sdsnew("unknown");
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}
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return names;
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}
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/* Used for INFO generation. */
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const char *evictPolicyToString(void) {
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for (configEnum *ce = maxmemory_policy_enum; ce->name != NULL; ce++) {
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if (server.maxmemory_policy == ce->val)
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return ce->name;
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}
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serverPanic("unknown eviction policy");
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}
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/*-----------------------------------------------------------------------------
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* Config file parsing
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*----------------------------------------------------------------------------*/
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int yesnotoi(char *s) {
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if (!strcasecmp(s,"yes")) return 1;
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else if (!strcasecmp(s,"no")) return 0;
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else return -1;
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}
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void appendServerSaveParams(time_t seconds, int changes) {
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server.saveparams = zrealloc(server.saveparams,sizeof(struct saveparam)*(server.saveparamslen+1));
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server.saveparams[server.saveparamslen].seconds = seconds;
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server.saveparams[server.saveparamslen].changes = changes;
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server.saveparamslen++;
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}
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void resetServerSaveParams(void) {
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zfree(server.saveparams);
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server.saveparams = NULL;
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server.saveparamslen = 0;
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}
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void queueLoadModule(sds path, sds *argv, int argc) {
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int i;
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struct moduleLoadQueueEntry *loadmod;
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loadmod = zmalloc(sizeof(struct moduleLoadQueueEntry));
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loadmod->argv = argc ? zmalloc(sizeof(robj*)*argc) : NULL;
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loadmod->path = sdsnew(path);
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loadmod->argc = argc;
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for (i = 0; i < argc; i++) {
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loadmod->argv[i] = createRawStringObject(argv[i],sdslen(argv[i]));
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}
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listAddNodeTail(server.loadmodule_queue,loadmod);
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}
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/* Parse an array of `arg_len` sds strings, validate and populate
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* server.client_obuf_limits if valid.
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* Used in CONFIG SET and configuration file parsing. */
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static int updateClientOutputBufferLimit(sds *args, int arg_len, const char **err) {
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int j;
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int class;
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unsigned long long hard, soft;
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int hard_err, soft_err;
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int soft_seconds;
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char *soft_seconds_eptr;
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clientBufferLimitsConfig values[CLIENT_TYPE_OBUF_COUNT];
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int classes[CLIENT_TYPE_OBUF_COUNT] = {0};
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/* We need a multiple of 4: <class> <hard> <soft> <soft_seconds> */
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if (arg_len % 4) {
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if (err) *err = "Wrong number of arguments in "
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"buffer limit configuration.";
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return 0;
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}
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/* Sanity check of single arguments, so that we either refuse the
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* whole configuration string or accept it all, even if a single
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* error in a single client class is present. */
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for (j = 0; j < arg_len; j += 4) {
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class = getClientTypeByName(args[j]);
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if (class == -1 || class == CLIENT_TYPE_MASTER) {
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if (err) *err = "Invalid client class specified in "
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"buffer limit configuration.";
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return 0;
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}
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hard = memtoull(args[j+1], &hard_err);
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soft = memtoull(args[j+2], &soft_err);
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soft_seconds = strtoll(args[j+3], &soft_seconds_eptr, 10);
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if (hard_err || soft_err ||
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soft_seconds < 0 || *soft_seconds_eptr != '\0')
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{
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if (err) *err = "Error in hard, soft or soft_seconds setting in "
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"buffer limit configuration.";
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return 0;
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}
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values[class].hard_limit_bytes = hard;
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values[class].soft_limit_bytes = soft;
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values[class].soft_limit_seconds = soft_seconds;
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classes[class] = 1;
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}
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/* Finally set the new config. */
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for (j = 0; j < CLIENT_TYPE_OBUF_COUNT; j++) {
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if (classes[j]) server.client_obuf_limits[j] = values[j];
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}
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return 1;
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}
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/* Note this is here to support detecting we're running a config set from
|
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* within conf file parsing. This is only needed to support the deprecated
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* abnormal aggregate `save T C` functionality. Remove in the future. */
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static int reading_config_file;
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void loadServerConfigFromString(char *config) {
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deprecatedConfig deprecated_configs[] = {
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{"list-max-ziplist-entries", 2, 2},
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{"list-max-ziplist-value", 2, 2},
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{"lua-replicate-commands", 2, 2},
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{NULL, 0},
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};
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char buf[1024];
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const char *err = NULL;
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int linenum = 0, totlines, i;
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sds *lines;
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reading_config_file = 1;
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lines = sdssplitlen(config,strlen(config),"\n",1,&totlines);
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for (i = 0; i < totlines; i++) {
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sds *argv;
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int argc;
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linenum = i+1;
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lines[i] = sdstrim(lines[i]," \t\r\n");
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/* Skip comments and blank lines */
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if (lines[i][0] == '#' || lines[i][0] == '\0') continue;
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/* Split into arguments */
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argv = sdssplitargs(lines[i],&argc);
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if (argv == NULL) {
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err = "Unbalanced quotes in configuration line";
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goto loaderr;
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}
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/* Skip this line if the resulting command vector is empty. */
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if (argc == 0) {
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sdsfreesplitres(argv,argc);
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continue;
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}
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sdstolower(argv[0]);
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/* Iterate the configs that are standard */
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standardConfig *config = lookupConfig(argv[0]);
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if (config) {
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/* For normal single arg configs enforce we have a single argument.
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* Note that MULTI_ARG_CONFIGs need to validate arg count on their own */
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if (!(config->flags & MULTI_ARG_CONFIG) && argc != 2) {
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err = "wrong number of arguments";
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goto loaderr;
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}
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/* Set config using all arguments that follows */
|
|
if (!config->interface.set(config, &argv[1], argc-1, &err)) {
|
|
goto loaderr;
|
|
}
|
|
|
|
sdsfreesplitres(argv,argc);
|
|
continue;
|
|
} else {
|
|
int match = 0;
|
|
for (deprecatedConfig *config = deprecated_configs; config->name != NULL; config++) {
|
|
if (!strcasecmp(argv[0], config->name) &&
|
|
config->argc_min <= argc &&
|
|
argc <= config->argc_max)
|
|
{
|
|
match = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (match) {
|
|
sdsfreesplitres(argv,argc);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/* Execute config directives */
|
|
if (!strcasecmp(argv[0],"include") && argc == 2) {
|
|
loadServerConfig(argv[1], 0, NULL);
|
|
} else if (!strcasecmp(argv[0],"rename-command") && argc == 3) {
|
|
struct redisCommand *cmd = lookupCommandBySds(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(server.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(server.commands, copy, cmd);
|
|
if (retval != DICT_OK) {
|
|
sdsfree(copy);
|
|
err = "Target command name already exists"; goto loaderr;
|
|
}
|
|
}
|
|
} else if (!strcasecmp(argv[0],"user") && argc >= 2) {
|
|
int argc_err;
|
|
if (ACLAppendUserForLoading(argv,argc,&argc_err) == C_ERR) {
|
|
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 (strchr(argv[0], '.')) {
|
|
if (argc != 2) {
|
|
err = "Module config specified without value";
|
|
goto loaderr;
|
|
}
|
|
sds name = sdsdup(argv[0]);
|
|
if (!dictReplace(server.module_configs_queue, name, sdsdup(argv[1]))) sdsfree(name);
|
|
} 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 (!server.sentinel_mode) {
|
|
err = "sentinel directive while not in sentinel mode";
|
|
goto loaderr;
|
|
}
|
|
queueSentinelConfig(argv+1,argc-1,linenum,lines[i]);
|
|
}
|
|
} else {
|
|
err = "Bad directive or wrong number of arguments"; goto loaderr;
|
|
}
|
|
sdsfreesplitres(argv,argc);
|
|
}
|
|
|
|
if (server.logfile[0] != '\0') {
|
|
FILE *logfp;
|
|
|
|
/* Test if we are able to open the file. The server will not
|
|
* be able to abort just for this problem later... */
|
|
logfp = fopen(server.logfile,"a");
|
|
if (logfp == NULL) {
|
|
err = sdscatprintf(sdsempty(),
|
|
"Can't open the log file: %s", strerror(errno));
|
|
goto loaderr;
|
|
}
|
|
fclose(logfp);
|
|
}
|
|
|
|
/* Sanity checks. */
|
|
if (server.cluster_enabled && server.masterhost) {
|
|
err = "replicaof directive not allowed in cluster mode";
|
|
goto loaderr;
|
|
}
|
|
|
|
/* To ensure backward compatibility and work while hz is out of range */
|
|
if (server.config_hz < CONFIG_MIN_HZ) server.config_hz = CONFIG_MIN_HZ;
|
|
if (server.config_hz > CONFIG_MAX_HZ) server.config_hz = CONFIG_MAX_HZ;
|
|
|
|
sdsfreesplitres(lines,totlines);
|
|
reading_config_file = 0;
|
|
return;
|
|
|
|
loaderr:
|
|
fprintf(stderr, "\n*** FATAL CONFIG FILE ERROR (Redis %s) ***\n",
|
|
REDIS_VERSION);
|
|
if (i < totlines) {
|
|
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. */
|
|
#define CONFIG_READ_LEN 1024
|
|
void loadServerConfig(char *filename, char config_from_stdin, char *options) {
|
|
sds config = sdsempty();
|
|
char buf[CONFIG_READ_LEN+1];
|
|
FILE *fp;
|
|
glob_t globbuf;
|
|
|
|
/* Load the file content */
|
|
if (filename) {
|
|
|
|
/* The logic for handling wildcards has slightly different behavior in cases where
|
|
* there is a failure to locate the included file.
|
|
* Whether or not a wildcard is specified, we should ALWAYS log errors when attempting
|
|
* to open included config files.
|
|
*
|
|
* However, we desire a behavioral difference between instances where a wildcard was
|
|
* specified and those where it hasn't:
|
|
* no wildcards : attempt to open the specified file and fail with a logged error
|
|
* if the file cannot be found and opened.
|
|
* with wildcards : attempt to glob the specified pattern; if no files match the
|
|
* pattern, then gracefully continue on to the next entry in the
|
|
* config file, as if the current entry was never encountered.
|
|
* This will allow for empty conf.d directories to be included. */
|
|
|
|
if (strchr(filename, '*') || strchr(filename, '?') || strchr(filename, '[')) {
|
|
/* A wildcard character detected in filename, so let us use glob */
|
|
if (glob(filename, 0, NULL, &globbuf) == 0) {
|
|
|
|
for (size_t i = 0; i < globbuf.gl_pathc; i++) {
|
|
if ((fp = fopen(globbuf.gl_pathv[i], "r")) == NULL) {
|
|
serverLog(LL_WARNING,
|
|
"Fatal error, can't open config file '%s': %s",
|
|
globbuf.gl_pathv[i], strerror(errno));
|
|
exit(1);
|
|
}
|
|
while(fgets(buf,CONFIG_READ_LEN+1,fp) != NULL)
|
|
config = sdscat(config,buf);
|
|
fclose(fp);
|
|
}
|
|
|
|
globfree(&globbuf);
|
|
}
|
|
} else {
|
|
/* No wildcard in filename means we can use the original logic to read and
|
|
* potentially fail traditionally */
|
|
if ((fp = fopen(filename, "r")) == NULL) {
|
|
serverLog(LL_WARNING,
|
|
"Fatal error, can't open config file '%s': %s",
|
|
filename, strerror(errno));
|
|
exit(1);
|
|
}
|
|
while(fgets(buf,CONFIG_READ_LEN+1,fp) != NULL)
|
|
config = sdscat(config,buf);
|
|
fclose(fp);
|
|
}
|
|
}
|
|
|
|
/* Append content from stdin */
|
|
if (config_from_stdin) {
|
|
serverLog(LL_WARNING,"Reading config from stdin");
|
|
fp = stdin;
|
|
while(fgets(buf,CONFIG_READ_LEN+1,fp) != NULL)
|
|
config = sdscat(config,buf);
|
|
}
|
|
|
|
/* Append the additional options */
|
|
if (options) {
|
|
config = sdscat(config,"\n");
|
|
config = sdscat(config,options);
|
|
}
|
|
loadServerConfigFromString(config);
|
|
sdsfree(config);
|
|
}
|
|
|
|
static int performInterfaceSet(standardConfig *config, sds value, const char **errstr) {
|
|
sds *argv;
|
|
int argc, res;
|
|
|
|
if (config->flags & MULTI_ARG_CONFIG) {
|
|
argv = sdssplitlen(value, sdslen(value), " ", 1, &argc);
|
|
} else {
|
|
argv = (char**)&value;
|
|
argc = 1;
|
|
}
|
|
|
|
/* Set the config */
|
|
res = config->interface.set(config, argv, argc, errstr);
|
|
if (config->flags & MULTI_ARG_CONFIG) sdsfreesplitres(argv, argc);
|
|
return res;
|
|
}
|
|
|
|
/* Find the config by name and attempt to set it to value. */
|
|
int performModuleConfigSetFromName(sds name, sds value, const char **err) {
|
|
standardConfig *config = lookupConfig(name);
|
|
if (!config || !(config->flags & MODULE_CONFIG)) {
|
|
*err = "Config name not found";
|
|
return 0;
|
|
}
|
|
return performInterfaceSet(config, value, err);
|
|
}
|
|
|
|
/* Find config by name and attempt to set it to its default value. */
|
|
int performModuleConfigSetDefaultFromName(sds name, const char **err) {
|
|
standardConfig *config = lookupConfig(name);
|
|
serverAssert(config);
|
|
if (!(config->flags & MODULE_CONFIG)) {
|
|
*err = "Config name not found";
|
|
return 0;
|
|
}
|
|
switch (config->type) {
|
|
case BOOL_CONFIG:
|
|
return setModuleBoolConfig(config->privdata, config->data.yesno.default_value, err);
|
|
case SDS_CONFIG:
|
|
return setModuleStringConfig(config->privdata, config->data.sds.default_value, err);
|
|
case NUMERIC_CONFIG:
|
|
return setModuleNumericConfig(config->privdata, config->data.numeric.default_value, err);
|
|
case ENUM_CONFIG:
|
|
return setModuleEnumConfig(config->privdata, config->data.enumd.default_value, err);
|
|
default:
|
|
serverPanic("Config type of module config is not allowed.");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void restoreBackupConfig(standardConfig **set_configs, sds *old_values, int count, apply_fn *apply_fns, list *module_configs) {
|
|
int i;
|
|
const char *errstr = "unknown error";
|
|
/* Set all backup values */
|
|
for (i = 0; i < count; i++) {
|
|
if (!performInterfaceSet(set_configs[i], old_values[i], &errstr))
|
|
serverLog(LL_WARNING, "Failed restoring failed CONFIG SET command. Error setting %s to '%s': %s",
|
|
set_configs[i]->name, old_values[i], errstr);
|
|
}
|
|
/* Apply backup */
|
|
if (apply_fns) {
|
|
for (i = 0; i < count && apply_fns[i] != NULL; i++) {
|
|
if (!apply_fns[i](&errstr))
|
|
serverLog(LL_WARNING, "Failed applying restored failed CONFIG SET command: %s", errstr);
|
|
}
|
|
}
|
|
if (module_configs) {
|
|
if (!moduleConfigApplyConfig(module_configs, &errstr, NULL))
|
|
serverLog(LL_WARNING, "Failed applying restored failed CONFIG SET command: %s", errstr);
|
|
}
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* CONFIG SET implementation
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
void configSetCommand(client *c) {
|
|
const char *errstr = NULL;
|
|
const char *invalid_arg_name = NULL;
|
|
const char *err_arg_name = NULL;
|
|
standardConfig **set_configs; /* TODO: make this a dict for better performance */
|
|
list *module_configs_apply;
|
|
const char **config_names;
|
|
sds *new_values;
|
|
sds *old_values = NULL;
|
|
apply_fn *apply_fns; /* TODO: make this a set for better performance */
|
|
int config_count, i, j;
|
|
int invalid_args = 0, deny_loading_error = 0;
|
|
int *config_map_fns;
|
|
|
|
/* Make sure we have an even number of arguments: conf-val pairs */
|
|
if (c->argc & 1) {
|
|
addReplyErrorObject(c, shared.syntaxerr);
|
|
return;
|
|
}
|
|
config_count = (c->argc - 2) / 2;
|
|
|
|
module_configs_apply = listCreate();
|
|
set_configs = zcalloc(sizeof(standardConfig*)*config_count);
|
|
config_names = zcalloc(sizeof(char*)*config_count);
|
|
new_values = zmalloc(sizeof(sds*)*config_count);
|
|
old_values = zcalloc(sizeof(sds*)*config_count);
|
|
apply_fns = zcalloc(sizeof(apply_fn)*config_count);
|
|
config_map_fns = zmalloc(sizeof(int)*config_count);
|
|
|
|
/* Find all relevant configs */
|
|
for (i = 0; i < config_count; i++) {
|
|
standardConfig *config = lookupConfig(c->argv[2+i*2]->ptr);
|
|
/* Fail if we couldn't find this config */
|
|
if (!config) {
|
|
if (!invalid_args) {
|
|
invalid_arg_name = c->argv[2+i*2]->ptr;
|
|
invalid_args = 1;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
/* Note: it's important we run over ALL passed configs and check if we need to call `redactClientCommandArgument()`.
|
|
* This is in order to avoid anyone using this command for a log/slowlog/monitor/etc. displaying sensitive info.
|
|
* So even if we encounter an error we still continue running over the remaining arguments. */
|
|
if (config->flags & SENSITIVE_CONFIG) {
|
|
redactClientCommandArgument(c,2+i*2+1);
|
|
}
|
|
|
|
/* We continue to make sure we redact all the configs */
|
|
if (invalid_args) continue;
|
|
|
|
if (config->flags & IMMUTABLE_CONFIG ||
|
|
(config->flags & PROTECTED_CONFIG && !allowProtectedAction(server.enable_protected_configs, c)))
|
|
{
|
|
/* Note: we don't abort the loop since we still want to handle redacting sensitive configs (above) */
|
|
errstr = (config->flags & IMMUTABLE_CONFIG) ? "can't set immutable config" : "can't set protected config";
|
|
err_arg_name = c->argv[2+i*2]->ptr;
|
|
invalid_args = 1;
|
|
continue;
|
|
}
|
|
|
|
if (server.loading && config->flags & DENY_LOADING_CONFIG) {
|
|
/* Note: we don't abort the loop since we still want to handle redacting sensitive configs (above) */
|
|
deny_loading_error = 1;
|
|
invalid_args = 1;
|
|
continue;
|
|
}
|
|
|
|
/* If this config appears twice then fail */
|
|
for (j = 0; j < i; j++) {
|
|
if (set_configs[j] == config) {
|
|
/* Note: we don't abort the loop since we still want to handle redacting sensitive configs (above) */
|
|
errstr = "duplicate parameter";
|
|
err_arg_name = c->argv[2+i*2]->ptr;
|
|
invalid_args = 1;
|
|
break;
|
|
}
|
|
}
|
|
set_configs[i] = config;
|
|
config_names[i] = config->name;
|
|
new_values[i] = c->argv[2+i*2+1]->ptr;
|
|
}
|
|
|
|
if (invalid_args) goto err;
|
|
|
|
/* Backup old values before setting new ones */
|
|
for (i = 0; i < config_count; i++)
|
|
old_values[i] = set_configs[i]->interface.get(set_configs[i]);
|
|
|
|
/* Set all new values (don't apply yet) */
|
|
for (i = 0; i < config_count; i++) {
|
|
int res = performInterfaceSet(set_configs[i], new_values[i], &errstr);
|
|
if (!res) {
|
|
restoreBackupConfig(set_configs, old_values, i+1, NULL, NULL);
|
|
err_arg_name = set_configs[i]->name;
|
|
goto err;
|
|
} else if (res == 1) {
|
|
/* A new value was set, if this config has an apply function then store it for execution later */
|
|
if (set_configs[i]->flags & MODULE_CONFIG) {
|
|
addModuleConfigApply(module_configs_apply, set_configs[i]->privdata);
|
|
} else if (set_configs[i]->interface.apply) {
|
|
/* Check if this apply function is already stored */
|
|
int exists = 0;
|
|
for (j = 0; apply_fns[j] != NULL && j <= i; j++) {
|
|
if (apply_fns[j] == set_configs[i]->interface.apply) {
|
|
exists = 1;
|
|
break;
|
|
}
|
|
}
|
|
/* Apply function not stored, store it */
|
|
if (!exists) {
|
|
apply_fns[j] = set_configs[i]->interface.apply;
|
|
config_map_fns[j] = i;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Apply all configs after being set */
|
|
for (i = 0; i < config_count && apply_fns[i] != NULL; i++) {
|
|
if (!apply_fns[i](&errstr)) {
|
|
serverLog(LL_WARNING, "Failed applying new configuration. Possibly related to new %s setting. Restoring previous settings.", set_configs[config_map_fns[i]]->name);
|
|
restoreBackupConfig(set_configs, old_values, config_count, apply_fns, NULL);
|
|
err_arg_name = set_configs[config_map_fns[i]]->name;
|
|
goto err;
|
|
}
|
|
}
|
|
/* Apply all module configs that were set. */
|
|
if (!moduleConfigApplyConfig(module_configs_apply, &errstr, &err_arg_name)) {
|
|
serverLogRaw(LL_WARNING, "Failed applying new module configuration. Restoring previous settings.");
|
|
restoreBackupConfig(set_configs, old_values, config_count, apply_fns, module_configs_apply);
|
|
goto err;
|
|
}
|
|
|
|
RedisModuleConfigChangeV1 cc = {.num_changes = config_count, .config_names = config_names};
|
|
moduleFireServerEvent(REDISMODULE_EVENT_CONFIG, REDISMODULE_SUBEVENT_CONFIG_CHANGE, &cc);
|
|
addReply(c,shared.ok);
|
|
goto end;
|
|
|
|
err:
|
|
if (deny_loading_error) {
|
|
/* We give the loading error precedence because it may be handled by clients differently, unlike a plain -ERR. */
|
|
addReplyErrorObject(c,shared.loadingerr);
|
|
} else if (invalid_arg_name) {
|
|
addReplyErrorFormat(c,"Unknown option or number of arguments for CONFIG SET - '%s'", invalid_arg_name);
|
|
} else if (errstr) {
|
|
addReplyErrorFormat(c,"CONFIG SET failed (possibly related to argument '%s') - %s", err_arg_name, errstr);
|
|
} else {
|
|
addReplyErrorFormat(c,"CONFIG SET failed (possibly related to argument '%s')", err_arg_name);
|
|
}
|
|
end:
|
|
zfree(set_configs);
|
|
zfree(config_names);
|
|
zfree(new_values);
|
|
for (i = 0; i < config_count; i++)
|
|
sdsfree(old_values[i]);
|
|
zfree(old_values);
|
|
zfree(apply_fns);
|
|
zfree(config_map_fns);
|
|
listRelease(module_configs_apply);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* CONFIG GET implementation
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
void configGetCommand(client *c) {
|
|
int i;
|
|
dictEntry *de;
|
|
dictIterator *di;
|
|
/* Create a dictionary to store the matched configs */
|
|
dict *matches = dictCreate(&externalStringType);
|
|
for (i = 0; i < c->argc - 2; i++) {
|
|
robj *o = c->argv[2+i];
|
|
sds name = o->ptr;
|
|
|
|
/* If the string doesn't contain glob patterns, just directly
|
|
* look up the key in the dictionary. */
|
|
if (!strpbrk(name, "[*?")) {
|
|
if (dictFind(matches, name)) continue;
|
|
standardConfig *config = lookupConfig(name);
|
|
|
|
if (config) {
|
|
dictAdd(matches, name, config);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
/* Otherwise, do a match against all items in the dictionary. */
|
|
di = dictGetIterator(configs);
|
|
|
|
while ((de = dictNext(di)) != NULL) {
|
|
standardConfig *config = dictGetVal(de);
|
|
/* Note that hidden configs require an exact match (not a pattern) */
|
|
if (config->flags & HIDDEN_CONFIG) continue;
|
|
if (dictFind(matches, config->name)) continue;
|
|
if (stringmatch(name, de->key, 1)) {
|
|
dictAdd(matches, de->key, config);
|
|
}
|
|
}
|
|
dictReleaseIterator(di);
|
|
}
|
|
|
|
di = dictGetIterator(matches);
|
|
addReplyMapLen(c, dictSize(matches));
|
|
while ((de = dictNext(di)) != NULL) {
|
|
standardConfig *config = (standardConfig *) dictGetVal(de);
|
|
addReplyBulkCString(c, de->key);
|
|
addReplyBulkSds(c, config->interface.get(config));
|
|
}
|
|
dictReleaseIterator(di);
|
|
dictRelease(matches);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* CONFIG REWRITE implementation
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
#define REDIS_CONFIG_REWRITE_SIGNATURE "# Generated by CONFIG REWRITE"
|
|
|
|
/* We use the following dictionary type to store where a configuration
|
|
* option is mentioned in the old configuration file, so it's
|
|
* like "maxmemory" -> list of line numbers (first line is zero). */
|
|
void dictListDestructor(dict *d, void *val);
|
|
|
|
/* Sentinel config rewriting is implemented inside sentinel.c by
|
|
* rewriteConfigSentinelOption(). */
|
|
void rewriteConfigSentinelOption(struct rewriteConfigState *state);
|
|
|
|
dictType optionToLineDictType = {
|
|
dictSdsCaseHash, /* hash function */
|
|
NULL, /* key dup */
|
|
NULL, /* val dup */
|
|
dictSdsKeyCaseCompare, /* key compare */
|
|
dictSdsDestructor, /* key destructor */
|
|
dictListDestructor, /* val destructor */
|
|
NULL /* allow to expand */
|
|
};
|
|
|
|
dictType optionSetDictType = {
|
|
dictSdsCaseHash, /* hash function */
|
|
NULL, /* key dup */
|
|
NULL, /* val dup */
|
|
dictSdsKeyCaseCompare, /* key compare */
|
|
dictSdsDestructor, /* key destructor */
|
|
NULL, /* val destructor */
|
|
NULL /* allow to expand */
|
|
};
|
|
|
|
/* The config rewrite state. */
|
|
struct rewriteConfigState {
|
|
dict *option_to_line; /* Option -> list of config file lines map */
|
|
dict *rewritten; /* Dictionary of already processed options */
|
|
int numlines; /* Number of lines in current config */
|
|
sds *lines; /* Current lines as an array of sds strings */
|
|
int needs_signature; /* True if we need to append the rewrite
|
|
signature. */
|
|
int force_write; /* True if we want all keywords to be force
|
|
written. Currently only used for testing
|
|
and debug information. */
|
|
};
|
|
|
|
/* Free the configuration rewrite state. */
|
|
void rewriteConfigReleaseState(struct rewriteConfigState *state) {
|
|
sdsfreesplitres(state->lines,state->numlines);
|
|
dictRelease(state->option_to_line);
|
|
dictRelease(state->rewritten);
|
|
zfree(state);
|
|
}
|
|
|
|
/* Create the configuration rewrite state */
|
|
struct rewriteConfigState *rewriteConfigCreateState() {
|
|
struct rewriteConfigState *state = zmalloc(sizeof(*state));
|
|
state->option_to_line = dictCreate(&optionToLineDictType);
|
|
state->rewritten = dictCreate(&optionSetDictType);
|
|
state->numlines = 0;
|
|
state->lines = NULL;
|
|
state->needs_signature = 1;
|
|
state->force_write = 0;
|
|
return state;
|
|
}
|
|
|
|
/* Append the new line to the current configuration state. */
|
|
void rewriteConfigAppendLine(struct rewriteConfigState *state, sds line) {
|
|
state->lines = zrealloc(state->lines, sizeof(char*) * (state->numlines+1));
|
|
state->lines[state->numlines++] = line;
|
|
}
|
|
|
|
/* Populate the option -> list of line numbers map. */
|
|
void rewriteConfigAddLineNumberToOption(struct rewriteConfigState *state, sds option, int linenum) {
|
|
list *l = dictFetchValue(state->option_to_line,option);
|
|
|
|
if (l == NULL) {
|
|
l = listCreate();
|
|
dictAdd(state->option_to_line,sdsdup(option),l);
|
|
}
|
|
listAddNodeTail(l,(void*)(long)linenum);
|
|
}
|
|
|
|
/* Add the specified option to the set of processed options.
|
|
* This is useful as only unused lines of processed options will be blanked
|
|
* in the config file, while options the rewrite process does not understand
|
|
* remain untouched. */
|
|
void rewriteConfigMarkAsProcessed(struct rewriteConfigState *state, const char *option) {
|
|
sds opt = sdsnew(option);
|
|
|
|
if (dictAdd(state->rewritten,opt,NULL) != DICT_OK) sdsfree(opt);
|
|
}
|
|
|
|
/* Read the old file, split it into lines to populate a newly created
|
|
* config rewrite state, and return it to the caller.
|
|
*
|
|
* If it is impossible to read the old file, NULL is returned.
|
|
* If the old file does not exist at all, an empty state is returned. */
|
|
struct rewriteConfigState *rewriteConfigReadOldFile(char *path) {
|
|
FILE *fp = fopen(path,"r");
|
|
if (fp == NULL && errno != ENOENT) return NULL;
|
|
|
|
struct redis_stat sb;
|
|
if (fp && redis_fstat(fileno(fp),&sb) == -1) return NULL;
|
|
|
|
int linenum = -1;
|
|
struct rewriteConfigState *state = rewriteConfigCreateState();
|
|
|
|
if (fp == NULL || sb.st_size == 0) return state;
|
|
|
|
/* Load the file content */
|
|
sds config = sdsnewlen(SDS_NOINIT,sb.st_size);
|
|
if (fread(config,1,sb.st_size,fp) == 0) {
|
|
sdsfree(config);
|
|
rewriteConfigReleaseState(state);
|
|
fclose(fp);
|
|
return NULL;
|
|
}
|
|
|
|
int i, totlines;
|
|
sds *lines = sdssplitlen(config,sdslen(config),"\n",1,&totlines);
|
|
|
|
/* Read the old content line by line, populate the state. */
|
|
for (i = 0; i < totlines; i++) {
|
|
int argc;
|
|
sds *argv;
|
|
sds line = sdstrim(lines[i],"\r\n\t ");
|
|
lines[i] = NULL;
|
|
|
|
linenum++; /* Zero based, so we init at -1 */
|
|
|
|
/* Handle comments and empty lines. */
|
|
if (line[0] == '#' || line[0] == '\0') {
|
|
if (state->needs_signature && !strcmp(line,REDIS_CONFIG_REWRITE_SIGNATURE))
|
|
state->needs_signature = 0;
|
|
rewriteConfigAppendLine(state,line);
|
|
continue;
|
|
}
|
|
|
|
/* Not a comment, split into arguments. */
|
|
argv = sdssplitargs(line,&argc);
|
|
if (argv == NULL || (!server.sentinel_mode && !lookupConfig(argv[0]))) {
|
|
/* Apparently the line is unparsable for some reason, for
|
|
* instance it may have unbalanced quotes, or may contain a
|
|
* config that doesn't exist anymore. Load it as a comment. */
|
|
sds aux = sdsnew("# ??? ");
|
|
aux = sdscatsds(aux,line);
|
|
if (argv) sdsfreesplitres(argv, argc);
|
|
sdsfree(line);
|
|
rewriteConfigAppendLine(state,aux);
|
|
continue;
|
|
}
|
|
|
|
sdstolower(argv[0]); /* We only want lowercase config directives. */
|
|
|
|
/* Now we populate the state according to the content of this line.
|
|
* Append the line and populate the option -> line numbers map. */
|
|
rewriteConfigAppendLine(state,line);
|
|
|
|
/* Translate options using the word "slave" to the corresponding name
|
|
* "replica", before adding such option to the config name -> lines
|
|
* mapping. */
|
|
char *p = strstr(argv[0],"slave");
|
|
if (p) {
|
|
sds alt = sdsempty();
|
|
alt = sdscatlen(alt,argv[0],p-argv[0]);
|
|
alt = sdscatlen(alt,"replica",7);
|
|
alt = sdscatlen(alt,p+5,strlen(p+5));
|
|
sdsfree(argv[0]);
|
|
argv[0] = alt;
|
|
}
|
|
/* If this is sentinel config, we use sentinel "sentinel <config>" as option
|
|
to avoid messing up the sequence. */
|
|
if (server.sentinel_mode && argc > 1 && !strcasecmp(argv[0],"sentinel")) {
|
|
sds sentinelOption = sdsempty();
|
|
sentinelOption = sdscatfmt(sentinelOption,"%S %S",argv[0],argv[1]);
|
|
rewriteConfigAddLineNumberToOption(state,sentinelOption,linenum);
|
|
sdsfree(sentinelOption);
|
|
} else {
|
|
rewriteConfigAddLineNumberToOption(state,argv[0],linenum);
|
|
}
|
|
sdsfreesplitres(argv,argc);
|
|
}
|
|
fclose(fp);
|
|
sdsfreesplitres(lines,totlines);
|
|
sdsfree(config);
|
|
return state;
|
|
}
|
|
|
|
/* Rewrite the specified configuration option with the new "line".
|
|
* It progressively uses lines of the file that were already used for the same
|
|
* configuration option in the old version of the file, removing that line from
|
|
* the map of options -> line numbers.
|
|
*
|
|
* If there are lines associated with a given configuration option and
|
|
* "force" is non-zero, the line is appended to the configuration file.
|
|
* Usually "force" is true when an option has not its default value, so it
|
|
* must be rewritten even if not present previously.
|
|
*
|
|
* The first time a line is appended into a configuration file, a comment
|
|
* is added to show that starting from that point the config file was generated
|
|
* by CONFIG REWRITE.
|
|
*
|
|
* "line" is either used, or freed, so the caller does not need to free it
|
|
* in any way. */
|
|
void rewriteConfigRewriteLine(struct rewriteConfigState *state, const char *option, sds line, int force) {
|
|
sds o = sdsnew(option);
|
|
list *l = dictFetchValue(state->option_to_line,o);
|
|
|
|
rewriteConfigMarkAsProcessed(state,option);
|
|
|
|
if (!l && !force && !state->force_write) {
|
|
/* Option not used previously, and we are not forced to use it. */
|
|
sdsfree(line);
|
|
sdsfree(o);
|
|
return;
|
|
}
|
|
|
|
if (l) {
|
|
listNode *ln = listFirst(l);
|
|
int linenum = (long) ln->value;
|
|
|
|
/* There are still lines in the old configuration file we can reuse
|
|
* for this option. Replace the line with the new one. */
|
|
listDelNode(l,ln);
|
|
if (listLength(l) == 0) dictDelete(state->option_to_line,o);
|
|
sdsfree(state->lines[linenum]);
|
|
state->lines[linenum] = line;
|
|
} else {
|
|
/* Append a new line. */
|
|
if (state->needs_signature) {
|
|
rewriteConfigAppendLine(state,
|
|
sdsnew(REDIS_CONFIG_REWRITE_SIGNATURE));
|
|
state->needs_signature = 0;
|
|
}
|
|
rewriteConfigAppendLine(state,line);
|
|
}
|
|
sdsfree(o);
|
|
}
|
|
|
|
/* Write the long long 'bytes' value as a string in a way that is parsable
|
|
* inside redis.conf. If possible uses the GB, MB, KB notation. */
|
|
int rewriteConfigFormatMemory(char *buf, size_t len, long long bytes) {
|
|
int gb = 1024*1024*1024;
|
|
int mb = 1024*1024;
|
|
int kb = 1024;
|
|
|
|
if (bytes && (bytes % gb) == 0) {
|
|
return snprintf(buf,len,"%lldgb",bytes/gb);
|
|
} else if (bytes && (bytes % mb) == 0) {
|
|
return snprintf(buf,len,"%lldmb",bytes/mb);
|
|
} else if (bytes && (bytes % kb) == 0) {
|
|
return snprintf(buf,len,"%lldkb",bytes/kb);
|
|
} else {
|
|
return snprintf(buf,len,"%lld",bytes);
|
|
}
|
|
}
|
|
|
|
/* Rewrite a simple "option-name <bytes>" configuration option. */
|
|
void rewriteConfigBytesOption(struct rewriteConfigState *state, const char *option, long long value, long long defvalue) {
|
|
char buf[64];
|
|
int force = value != defvalue;
|
|
sds line;
|
|
|
|
rewriteConfigFormatMemory(buf,sizeof(buf),value);
|
|
line = sdscatprintf(sdsempty(),"%s %s",option,buf);
|
|
rewriteConfigRewriteLine(state,option,line,force);
|
|
}
|
|
|
|
/* Rewrite a simple "option-name n%" configuration option. */
|
|
void rewriteConfigPercentOption(struct rewriteConfigState *state, const char *option, long long value, long long defvalue) {
|
|
int force = value != defvalue;
|
|
sds line = sdscatprintf(sdsempty(),"%s %lld%%",option,value);
|
|
|
|
rewriteConfigRewriteLine(state,option,line,force);
|
|
}
|
|
|
|
/* Rewrite a yes/no option. */
|
|
void rewriteConfigYesNoOption(struct rewriteConfigState *state, const char *option, int value, int defvalue) {
|
|
int force = value != defvalue;
|
|
sds line = sdscatprintf(sdsempty(),"%s %s",option,
|
|
value ? "yes" : "no");
|
|
|
|
rewriteConfigRewriteLine(state,option,line,force);
|
|
}
|
|
|
|
/* Rewrite a string option. */
|
|
void rewriteConfigStringOption(struct rewriteConfigState *state, const char *option, char *value, const char *defvalue) {
|
|
int force = 1;
|
|
sds line;
|
|
|
|
/* String options set to NULL need to be not present at all in the
|
|
* configuration file to be set to NULL again at the next reboot. */
|
|
if (value == NULL) {
|
|
rewriteConfigMarkAsProcessed(state,option);
|
|
return;
|
|
}
|
|
|
|
/* Set force to zero if the value is set to its default. */
|
|
if (defvalue && strcmp(value,defvalue) == 0) force = 0;
|
|
|
|
line = sdsnew(option);
|
|
line = sdscatlen(line, " ", 1);
|
|
line = sdscatrepr(line, value, strlen(value));
|
|
|
|
rewriteConfigRewriteLine(state,option,line,force);
|
|
}
|
|
|
|
/* Rewrite a SDS string option. */
|
|
void rewriteConfigSdsOption(struct rewriteConfigState *state, const char *option, sds value, const char *defvalue) {
|
|
int force = 1;
|
|
sds line;
|
|
|
|
/* If there is no value set, we don't want the SDS option
|
|
* to be present in the configuration at all. */
|
|
if (value == NULL) {
|
|
rewriteConfigMarkAsProcessed(state, option);
|
|
return;
|
|
}
|
|
|
|
/* Set force to zero if the value is set to its default. */
|
|
if (defvalue && strcmp(value, defvalue) == 0) force = 0;
|
|
|
|
line = sdsnew(option);
|
|
line = sdscatlen(line, " ", 1);
|
|
line = sdscatrepr(line, value, sdslen(value));
|
|
|
|
rewriteConfigRewriteLine(state, option, line, force);
|
|
}
|
|
|
|
/* Rewrite a numerical (long long range) option. */
|
|
void rewriteConfigNumericalOption(struct rewriteConfigState *state, const char *option, long long value, long long defvalue) {
|
|
int force = value != defvalue;
|
|
sds line = sdscatprintf(sdsempty(),"%s %lld",option,value);
|
|
|
|
rewriteConfigRewriteLine(state,option,line,force);
|
|
}
|
|
|
|
/* Rewrite an octal option. */
|
|
void rewriteConfigOctalOption(struct rewriteConfigState *state, const char *option, long long value, long long defvalue) {
|
|
int force = value != defvalue;
|
|
sds line = sdscatprintf(sdsempty(),"%s %llo",option,value);
|
|
|
|
rewriteConfigRewriteLine(state,option,line,force);
|
|
}
|
|
|
|
/* Rewrite an enumeration option. It takes as usually state and option name,
|
|
* and in addition the enumeration array and the default value for the
|
|
* option. */
|
|
void rewriteConfigEnumOption(struct rewriteConfigState *state, const char *option, int value, standardConfig *config) {
|
|
int multiarg = config->flags & MULTI_ARG_CONFIG;
|
|
sds names = configEnumGetName(config->data.enumd.enum_value,value,multiarg);
|
|
sds line = sdscatfmt(sdsempty(),"%s %s",option,names);
|
|
sdsfree(names);
|
|
int force = value != config->data.enumd.default_value;
|
|
|
|
rewriteConfigRewriteLine(state,option,line,force);
|
|
}
|
|
|
|
/* Rewrite the save option. */
|
|
void rewriteConfigSaveOption(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
UNUSED(config);
|
|
int j;
|
|
sds line;
|
|
|
|
/* In Sentinel mode we don't need to rewrite the save parameters */
|
|
if (server.sentinel_mode) {
|
|
rewriteConfigMarkAsProcessed(state,name);
|
|
return;
|
|
}
|
|
|
|
/* Rewrite save parameters, or an empty 'save ""' line to avoid the
|
|
* defaults from being used.
|
|
*/
|
|
if (!server.saveparamslen) {
|
|
rewriteConfigRewriteLine(state,name,sdsnew("save \"\""),1);
|
|
} else {
|
|
for (j = 0; j < server.saveparamslen; j++) {
|
|
line = sdscatprintf(sdsempty(),"save %ld %d",
|
|
(long) server.saveparams[j].seconds, server.saveparams[j].changes);
|
|
rewriteConfigRewriteLine(state,name,line,1);
|
|
}
|
|
}
|
|
|
|
/* Mark "save" as processed in case server.saveparamslen is zero. */
|
|
rewriteConfigMarkAsProcessed(state,name);
|
|
}
|
|
|
|
/* Rewrite the user option. */
|
|
void rewriteConfigUserOption(struct rewriteConfigState *state) {
|
|
/* If there is a user file defined we just mark this configuration
|
|
* directive as processed, so that all the lines containing users
|
|
* inside the config file gets discarded. */
|
|
if (server.acl_filename[0] != '\0') {
|
|
rewriteConfigMarkAsProcessed(state,"user");
|
|
return;
|
|
}
|
|
|
|
/* Otherwise scan the list of users and rewrite every line. Note that
|
|
* in case the list here is empty, the effect will just be to comment
|
|
* all the users directive inside the config file. */
|
|
raxIterator ri;
|
|
raxStart(&ri,Users);
|
|
raxSeek(&ri,"^",NULL,0);
|
|
while(raxNext(&ri)) {
|
|
user *u = ri.data;
|
|
sds line = sdsnew("user ");
|
|
line = sdscatsds(line,u->name);
|
|
line = sdscatlen(line," ",1);
|
|
sds descr = ACLDescribeUser(u);
|
|
line = sdscatsds(line,descr);
|
|
sdsfree(descr);
|
|
rewriteConfigRewriteLine(state,"user",line,1);
|
|
}
|
|
raxStop(&ri);
|
|
|
|
/* Mark "user" as processed in case there are no defined users. */
|
|
rewriteConfigMarkAsProcessed(state,"user");
|
|
}
|
|
|
|
/* Rewrite the dir option, always using absolute paths.*/
|
|
void rewriteConfigDirOption(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
UNUSED(config);
|
|
char cwd[1024];
|
|
|
|
if (getcwd(cwd,sizeof(cwd)) == NULL) {
|
|
rewriteConfigMarkAsProcessed(state,name);
|
|
return; /* no rewrite on error. */
|
|
}
|
|
rewriteConfigStringOption(state,name,cwd,NULL);
|
|
}
|
|
|
|
/* Rewrite the slaveof option. */
|
|
void rewriteConfigReplicaOfOption(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
UNUSED(config);
|
|
sds line;
|
|
|
|
/* If this is a master, we want all the slaveof config options
|
|
* in the file to be removed. Note that if this is a cluster instance
|
|
* we don't want a slaveof directive inside redis.conf. */
|
|
if (server.cluster_enabled || server.masterhost == NULL) {
|
|
rewriteConfigMarkAsProcessed(state, name);
|
|
return;
|
|
}
|
|
line = sdscatprintf(sdsempty(),"%s %s %d", name,
|
|
server.masterhost, server.masterport);
|
|
rewriteConfigRewriteLine(state,name,line,1);
|
|
}
|
|
|
|
/* Rewrite the notify-keyspace-events option. */
|
|
void rewriteConfigNotifyKeyspaceEventsOption(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
UNUSED(config);
|
|
int force = server.notify_keyspace_events != 0;
|
|
sds line, flags;
|
|
|
|
flags = keyspaceEventsFlagsToString(server.notify_keyspace_events);
|
|
line = sdsnew(name);
|
|
line = sdscatlen(line, " ", 1);
|
|
line = sdscatrepr(line, flags, sdslen(flags));
|
|
sdsfree(flags);
|
|
rewriteConfigRewriteLine(state,name,line,force);
|
|
}
|
|
|
|
/* Rewrite the client-output-buffer-limit option. */
|
|
void rewriteConfigClientOutputBufferLimitOption(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
UNUSED(config);
|
|
int j;
|
|
for (j = 0; j < CLIENT_TYPE_OBUF_COUNT; j++) {
|
|
int force = (server.client_obuf_limits[j].hard_limit_bytes !=
|
|
clientBufferLimitsDefaults[j].hard_limit_bytes) ||
|
|
(server.client_obuf_limits[j].soft_limit_bytes !=
|
|
clientBufferLimitsDefaults[j].soft_limit_bytes) ||
|
|
(server.client_obuf_limits[j].soft_limit_seconds !=
|
|
clientBufferLimitsDefaults[j].soft_limit_seconds);
|
|
sds line;
|
|
char hard[64], soft[64];
|
|
|
|
rewriteConfigFormatMemory(hard,sizeof(hard),
|
|
server.client_obuf_limits[j].hard_limit_bytes);
|
|
rewriteConfigFormatMemory(soft,sizeof(soft),
|
|
server.client_obuf_limits[j].soft_limit_bytes);
|
|
|
|
char *typename = getClientTypeName(j);
|
|
if (!strcmp(typename,"slave")) typename = "replica";
|
|
line = sdscatprintf(sdsempty(),"%s %s %s %s %ld",
|
|
name, typename, hard, soft,
|
|
(long) server.client_obuf_limits[j].soft_limit_seconds);
|
|
rewriteConfigRewriteLine(state,name,line,force);
|
|
}
|
|
}
|
|
|
|
/* Rewrite the oom-score-adj-values option. */
|
|
void rewriteConfigOOMScoreAdjValuesOption(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
UNUSED(config);
|
|
int force = 0;
|
|
int j;
|
|
sds line;
|
|
|
|
line = sdsnew(name);
|
|
line = sdscatlen(line, " ", 1);
|
|
for (j = 0; j < CONFIG_OOM_COUNT; j++) {
|
|
if (server.oom_score_adj_values[j] != configOOMScoreAdjValuesDefaults[j])
|
|
force = 1;
|
|
|
|
line = sdscatprintf(line, "%d", server.oom_score_adj_values[j]);
|
|
if (j+1 != CONFIG_OOM_COUNT)
|
|
line = sdscatlen(line, " ", 1);
|
|
}
|
|
rewriteConfigRewriteLine(state,name,line,force);
|
|
}
|
|
|
|
/* Rewrite the bind option. */
|
|
void rewriteConfigBindOption(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
UNUSED(config);
|
|
int force = 1;
|
|
sds line, addresses;
|
|
int is_default = 0;
|
|
|
|
/* Compare server.bindaddr with CONFIG_DEFAULT_BINDADDR */
|
|
if (server.bindaddr_count == CONFIG_DEFAULT_BINDADDR_COUNT) {
|
|
is_default = 1;
|
|
char *default_bindaddr[CONFIG_DEFAULT_BINDADDR_COUNT] = CONFIG_DEFAULT_BINDADDR;
|
|
for (int j = 0; j < CONFIG_DEFAULT_BINDADDR_COUNT; j++) {
|
|
if (strcmp(server.bindaddr[j], default_bindaddr[j]) != 0) {
|
|
is_default = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (is_default) {
|
|
rewriteConfigMarkAsProcessed(state,name);
|
|
return;
|
|
}
|
|
|
|
/* Rewrite as bind <addr1> <addr2> ... <addrN> */
|
|
if (server.bindaddr_count > 0)
|
|
addresses = sdsjoin(server.bindaddr,server.bindaddr_count," ");
|
|
else
|
|
addresses = sdsnew("\"\"");
|
|
line = sdsnew(name);
|
|
line = sdscatlen(line, " ", 1);
|
|
line = sdscatsds(line, addresses);
|
|
sdsfree(addresses);
|
|
|
|
rewriteConfigRewriteLine(state,name,line,force);
|
|
}
|
|
|
|
/* Rewrite the loadmodule option. */
|
|
void rewriteConfigLoadmoduleOption(struct rewriteConfigState *state) {
|
|
sds line;
|
|
|
|
dictIterator *di = dictGetIterator(modules);
|
|
dictEntry *de;
|
|
while ((de = dictNext(di)) != NULL) {
|
|
struct RedisModule *module = dictGetVal(de);
|
|
line = sdsnew("loadmodule ");
|
|
line = sdscatsds(line, module->loadmod->path);
|
|
for (int i = 0; i < module->loadmod->argc; i++) {
|
|
line = sdscatlen(line, " ", 1);
|
|
line = sdscatsds(line, module->loadmod->argv[i]->ptr);
|
|
}
|
|
rewriteConfigRewriteLine(state,"loadmodule",line,1);
|
|
}
|
|
dictReleaseIterator(di);
|
|
/* Mark "loadmodule" as processed in case modules is empty. */
|
|
rewriteConfigMarkAsProcessed(state,"loadmodule");
|
|
}
|
|
|
|
/* Glue together the configuration lines in the current configuration
|
|
* rewrite state into a single string, stripping multiple empty lines. */
|
|
sds rewriteConfigGetContentFromState(struct rewriteConfigState *state) {
|
|
sds content = sdsempty();
|
|
int j, was_empty = 0;
|
|
|
|
for (j = 0; j < state->numlines; j++) {
|
|
/* Every cluster of empty lines is turned into a single empty line. */
|
|
if (sdslen(state->lines[j]) == 0) {
|
|
if (was_empty) continue;
|
|
was_empty = 1;
|
|
} else {
|
|
was_empty = 0;
|
|
}
|
|
content = sdscatsds(content,state->lines[j]);
|
|
content = sdscatlen(content,"\n",1);
|
|
}
|
|
return content;
|
|
}
|
|
|
|
/* At the end of the rewrite process the state contains the remaining
|
|
* map between "option name" => "lines in the original config file".
|
|
* Lines used by the rewrite process were removed by the function
|
|
* rewriteConfigRewriteLine(), all the other lines are "orphaned" and
|
|
* should be replaced by empty lines.
|
|
*
|
|
* This function does just this, iterating all the option names and
|
|
* blanking all the lines still associated. */
|
|
void rewriteConfigRemoveOrphaned(struct rewriteConfigState *state) {
|
|
dictIterator *di = dictGetIterator(state->option_to_line);
|
|
dictEntry *de;
|
|
|
|
while((de = dictNext(di)) != NULL) {
|
|
list *l = dictGetVal(de);
|
|
sds option = dictGetKey(de);
|
|
|
|
/* Don't blank lines about options the rewrite process
|
|
* don't understand. */
|
|
if (dictFind(state->rewritten,option) == NULL) {
|
|
serverLog(LL_DEBUG,"Not rewritten option: %s", option);
|
|
continue;
|
|
}
|
|
|
|
while(listLength(l)) {
|
|
listNode *ln = listFirst(l);
|
|
int linenum = (long) ln->value;
|
|
|
|
sdsfree(state->lines[linenum]);
|
|
state->lines[linenum] = sdsempty();
|
|
listDelNode(l,ln);
|
|
}
|
|
}
|
|
dictReleaseIterator(di);
|
|
}
|
|
|
|
/* This function returns a string representation of all the config options
|
|
* marked with DEBUG_CONFIG, which can be used to help with debugging. */
|
|
sds getConfigDebugInfo() {
|
|
struct rewriteConfigState *state = rewriteConfigCreateState();
|
|
state->force_write = 1; /* Force the output */
|
|
state->needs_signature = 0; /* Omit the rewrite signature */
|
|
|
|
/* Iterate the configs and "rewrite" the ones that have
|
|
* the debug flag. */
|
|
dictIterator *di = dictGetIterator(configs);
|
|
dictEntry *de;
|
|
while ((de = dictNext(di)) != NULL) {
|
|
standardConfig *config = dictGetVal(de);
|
|
if (!(config->flags & DEBUG_CONFIG)) continue;
|
|
config->interface.rewrite(config, config->name, state);
|
|
}
|
|
dictReleaseIterator(di);
|
|
sds info = rewriteConfigGetContentFromState(state);
|
|
rewriteConfigReleaseState(state);
|
|
return info;
|
|
}
|
|
|
|
/* This function replaces the old configuration file with the new content
|
|
* in an atomic manner.
|
|
*
|
|
* The function returns 0 on success, otherwise -1 is returned and errno
|
|
* is set accordingly. */
|
|
int rewriteConfigOverwriteFile(char *configfile, sds content) {
|
|
int fd = -1;
|
|
int retval = -1;
|
|
char tmp_conffile[PATH_MAX];
|
|
const char *tmp_suffix = ".XXXXXX";
|
|
size_t offset = 0;
|
|
ssize_t written_bytes = 0;
|
|
|
|
int tmp_path_len = snprintf(tmp_conffile, sizeof(tmp_conffile), "%s%s", configfile, tmp_suffix);
|
|
if (tmp_path_len <= 0 || (unsigned int)tmp_path_len >= sizeof(tmp_conffile)) {
|
|
serverLog(LL_WARNING, "Config file full path is too long");
|
|
errno = ENAMETOOLONG;
|
|
return retval;
|
|
}
|
|
|
|
#ifdef _GNU_SOURCE
|
|
fd = mkostemp(tmp_conffile, O_CLOEXEC);
|
|
#else
|
|
/* There's a theoretical chance here to leak the FD if a module thread forks & execv in the middle */
|
|
fd = mkstemp(tmp_conffile);
|
|
#endif
|
|
|
|
if (fd == -1) {
|
|
serverLog(LL_WARNING, "Could not create tmp config file (%s)", strerror(errno));
|
|
return retval;
|
|
}
|
|
|
|
while (offset < sdslen(content)) {
|
|
written_bytes = write(fd, content + offset, sdslen(content) - offset);
|
|
if (written_bytes <= 0) {
|
|
if (errno == EINTR) continue; /* FD is blocking, no other retryable errors */
|
|
serverLog(LL_WARNING, "Failed after writing (%zd) bytes to tmp config file (%s)", offset, strerror(errno));
|
|
goto cleanup;
|
|
}
|
|
offset+=written_bytes;
|
|
}
|
|
|
|
if (fsync(fd))
|
|
serverLog(LL_WARNING, "Could not sync tmp config file to disk (%s)", strerror(errno));
|
|
else if (fchmod(fd, 0644 & ~server.umask) == -1)
|
|
serverLog(LL_WARNING, "Could not chmod config file (%s)", strerror(errno));
|
|
else if (rename(tmp_conffile, configfile) == -1)
|
|
serverLog(LL_WARNING, "Could not rename tmp config file (%s)", strerror(errno));
|
|
else {
|
|
retval = 0;
|
|
serverLog(LL_DEBUG, "Rewritten config file (%s) successfully", configfile);
|
|
}
|
|
|
|
cleanup:
|
|
close(fd);
|
|
if (retval) unlink(tmp_conffile);
|
|
return retval;
|
|
}
|
|
|
|
/* Rewrite the configuration file at "path".
|
|
* If the configuration file already exists, we try at best to retain comments
|
|
* and overall structure.
|
|
*
|
|
* Configuration parameters that are at their default value, unless already
|
|
* explicitly included in the old configuration file, are not rewritten.
|
|
* The force_write flag overrides this behavior and forces everything to be
|
|
* written. This is currently only used for testing purposes.
|
|
*
|
|
* On error -1 is returned and errno is set accordingly, otherwise 0. */
|
|
int rewriteConfig(char *path, int force_write) {
|
|
struct rewriteConfigState *state;
|
|
sds newcontent;
|
|
int retval;
|
|
|
|
/* Step 1: read the old config into our rewrite state. */
|
|
if ((state = rewriteConfigReadOldFile(path)) == NULL) return -1;
|
|
if (force_write) state->force_write = 1;
|
|
|
|
/* Step 2: rewrite every single option, replacing or appending it inside
|
|
* the rewrite state. */
|
|
|
|
/* Iterate the configs that are standard */
|
|
dictIterator *di = dictGetIterator(configs);
|
|
dictEntry *de;
|
|
while ((de = dictNext(di)) != NULL) {
|
|
standardConfig *config = dictGetVal(de);
|
|
/* Only rewrite the primary names */
|
|
if (config->flags & ALIAS_CONFIG) continue;
|
|
if (config->interface.rewrite) config->interface.rewrite(config, de->key, state);
|
|
}
|
|
dictReleaseIterator(di);
|
|
|
|
rewriteConfigUserOption(state);
|
|
rewriteConfigLoadmoduleOption(state);
|
|
|
|
/* Rewrite Sentinel config if in Sentinel mode. */
|
|
if (server.sentinel_mode) rewriteConfigSentinelOption(state);
|
|
|
|
/* Step 3: remove all the orphaned lines in the old file, that is, lines
|
|
* that were used by a config option and are no longer used, like in case
|
|
* of multiple "save" options or duplicated options. */
|
|
rewriteConfigRemoveOrphaned(state);
|
|
|
|
/* Step 4: generate a new configuration file from the modified state
|
|
* and write it into the original file. */
|
|
newcontent = rewriteConfigGetContentFromState(state);
|
|
retval = rewriteConfigOverwriteFile(server.configfile,newcontent);
|
|
|
|
sdsfree(newcontent);
|
|
rewriteConfigReleaseState(state);
|
|
return retval;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Configs that fit one of the major types and require no special handling
|
|
*----------------------------------------------------------------------------*/
|
|
#define LOADBUF_SIZE 256
|
|
static char loadbuf[LOADBUF_SIZE];
|
|
|
|
#define embedCommonConfig(config_name, config_alias, config_flags) \
|
|
.name = (config_name), \
|
|
.alias = (config_alias), \
|
|
.flags = (config_flags),
|
|
|
|
#define embedConfigInterface(initfn, setfn, getfn, rewritefn, applyfn) .interface = { \
|
|
.init = (initfn), \
|
|
.set = (setfn), \
|
|
.get = (getfn), \
|
|
.rewrite = (rewritefn), \
|
|
.apply = (applyfn) \
|
|
},
|
|
|
|
/* What follows is the generic config types that are supported. To add a new
|
|
* config with one of these types, add it to the standardConfig table with
|
|
* the creation macro for each type.
|
|
*
|
|
* Each type contains the following:
|
|
* * A function defining how to load this type on startup.
|
|
* * A function defining how to update this type on CONFIG SET.
|
|
* * A function defining how to serialize this type on CONFIG SET.
|
|
* * A function defining how to rewrite this type on CONFIG REWRITE.
|
|
* * A Macro defining how to create this type.
|
|
*/
|
|
|
|
/* Bool Configs */
|
|
static void boolConfigInit(standardConfig *config) {
|
|
*config->data.yesno.config = config->data.yesno.default_value;
|
|
}
|
|
|
|
static int boolConfigSet(standardConfig *config, sds *argv, int argc, const char **err) {
|
|
UNUSED(argc);
|
|
int yn = yesnotoi(argv[0]);
|
|
if (yn == -1) {
|
|
*err = "argument must be 'yes' or 'no'";
|
|
return 0;
|
|
}
|
|
if (config->data.yesno.is_valid_fn && !config->data.yesno.is_valid_fn(yn, err))
|
|
return 0;
|
|
int prev = config->flags & MODULE_CONFIG ? getModuleBoolConfig(config->privdata) : *(config->data.yesno.config);
|
|
if (prev != yn) {
|
|
if (config->flags & MODULE_CONFIG) {
|
|
return setModuleBoolConfig(config->privdata, yn, err);
|
|
}
|
|
*(config->data.yesno.config) = yn;
|
|
return 1;
|
|
}
|
|
return 2;
|
|
}
|
|
|
|
static sds boolConfigGet(standardConfig *config) {
|
|
if (config->flags & MODULE_CONFIG) {
|
|
return sdsnew(getModuleBoolConfig(config->privdata) ? "yes" : "no");
|
|
}
|
|
return sdsnew(*config->data.yesno.config ? "yes" : "no");
|
|
}
|
|
|
|
static void boolConfigRewrite(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
int val = config->flags & MODULE_CONFIG ? getModuleBoolConfig(config->privdata) : *(config->data.yesno.config);
|
|
rewriteConfigYesNoOption(state, name, val, config->data.yesno.default_value);
|
|
}
|
|
|
|
#define createBoolConfig(name, alias, flags, config_addr, default, is_valid, apply) { \
|
|
embedCommonConfig(name, alias, flags) \
|
|
embedConfigInterface(boolConfigInit, boolConfigSet, boolConfigGet, boolConfigRewrite, apply) \
|
|
.type = BOOL_CONFIG, \
|
|
.data.yesno = { \
|
|
.config = &(config_addr), \
|
|
.default_value = (default), \
|
|
.is_valid_fn = (is_valid), \
|
|
} \
|
|
}
|
|
|
|
/* String Configs */
|
|
static void stringConfigInit(standardConfig *config) {
|
|
*config->data.string.config = (config->data.string.convert_empty_to_null && !config->data.string.default_value) ? NULL : zstrdup(config->data.string.default_value);
|
|
}
|
|
|
|
static int stringConfigSet(standardConfig *config, sds *argv, int argc, const char **err) {
|
|
UNUSED(argc);
|
|
if (config->data.string.is_valid_fn && !config->data.string.is_valid_fn(argv[0], err))
|
|
return 0;
|
|
char *prev = *config->data.string.config;
|
|
char *new = (config->data.string.convert_empty_to_null && !argv[0][0]) ? NULL : argv[0];
|
|
if (new != prev && (new == NULL || prev == NULL || strcmp(prev, new))) {
|
|
*config->data.string.config = new != NULL ? zstrdup(new) : NULL;
|
|
zfree(prev);
|
|
return 1;
|
|
}
|
|
return 2;
|
|
}
|
|
|
|
static sds stringConfigGet(standardConfig *config) {
|
|
return sdsnew(*config->data.string.config ? *config->data.string.config : "");
|
|
}
|
|
|
|
static void stringConfigRewrite(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
rewriteConfigStringOption(state, name,*(config->data.string.config), config->data.string.default_value);
|
|
}
|
|
|
|
/* SDS Configs */
|
|
static void sdsConfigInit(standardConfig *config) {
|
|
*config->data.sds.config = (config->data.sds.convert_empty_to_null && !config->data.sds.default_value) ? NULL : sdsnew(config->data.sds.default_value);
|
|
}
|
|
|
|
static int sdsConfigSet(standardConfig *config, sds *argv, int argc, const char **err) {
|
|
UNUSED(argc);
|
|
if (config->data.sds.is_valid_fn && !config->data.sds.is_valid_fn(argv[0], err))
|
|
return 0;
|
|
|
|
sds prev = config->flags & MODULE_CONFIG ? getModuleStringConfig(config->privdata) : *config->data.sds.config;
|
|
sds new = (config->data.string.convert_empty_to_null && (sdslen(argv[0]) == 0)) ? NULL : argv[0];
|
|
|
|
/* if prev and new configuration are not equal, set the new one */
|
|
if (new != prev && (new == NULL || prev == NULL || sdscmp(prev, new))) {
|
|
/* If MODULE_CONFIG flag is set, then free temporary prev getModuleStringConfig returned.
|
|
* Otherwise, free the actual previous config value Redis held (Same action, different reasons) */
|
|
sdsfree(prev);
|
|
|
|
if (config->flags & MODULE_CONFIG) {
|
|
return setModuleStringConfig(config->privdata, new, err);
|
|
}
|
|
*config->data.sds.config = new != NULL ? sdsdup(new) : NULL;
|
|
return 1;
|
|
}
|
|
if (config->flags & MODULE_CONFIG && prev) sdsfree(prev);
|
|
return 2;
|
|
}
|
|
|
|
static sds sdsConfigGet(standardConfig *config) {
|
|
sds val = config->flags & MODULE_CONFIG ? getModuleStringConfig(config->privdata) : *config->data.sds.config;
|
|
if (val) {
|
|
if (config->flags & MODULE_CONFIG) return val;
|
|
return sdsdup(val);
|
|
} else {
|
|
return sdsnew("");
|
|
}
|
|
}
|
|
|
|
static void sdsConfigRewrite(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
sds val = config->flags & MODULE_CONFIG ? getModuleStringConfig(config->privdata) : *config->data.sds.config;
|
|
rewriteConfigSdsOption(state, name, val, config->data.sds.default_value);
|
|
if ((val) && (config->flags & MODULE_CONFIG)) sdsfree(val);
|
|
}
|
|
|
|
|
|
#define ALLOW_EMPTY_STRING 0
|
|
#define EMPTY_STRING_IS_NULL 1
|
|
|
|
#define createStringConfig(name, alias, flags, empty_to_null, config_addr, default, is_valid, apply) { \
|
|
embedCommonConfig(name, alias, flags) \
|
|
embedConfigInterface(stringConfigInit, stringConfigSet, stringConfigGet, stringConfigRewrite, apply) \
|
|
.type = STRING_CONFIG, \
|
|
.data.string = { \
|
|
.config = &(config_addr), \
|
|
.default_value = (default), \
|
|
.is_valid_fn = (is_valid), \
|
|
.convert_empty_to_null = (empty_to_null), \
|
|
} \
|
|
}
|
|
|
|
#define createSDSConfig(name, alias, flags, empty_to_null, config_addr, default, is_valid, apply) { \
|
|
embedCommonConfig(name, alias, flags) \
|
|
embedConfigInterface(sdsConfigInit, sdsConfigSet, sdsConfigGet, sdsConfigRewrite, apply) \
|
|
.type = SDS_CONFIG, \
|
|
.data.sds = { \
|
|
.config = &(config_addr), \
|
|
.default_value = (default), \
|
|
.is_valid_fn = (is_valid), \
|
|
.convert_empty_to_null = (empty_to_null), \
|
|
} \
|
|
}
|
|
|
|
/* Enum configs */
|
|
static void enumConfigInit(standardConfig *config) {
|
|
*config->data.enumd.config = config->data.enumd.default_value;
|
|
}
|
|
|
|
static int enumConfigSet(standardConfig *config, sds *argv, int argc, const char **err) {
|
|
int enumval;
|
|
int bitflags = !!(config->flags & MULTI_ARG_CONFIG);
|
|
enumval = configEnumGetValue(config->data.enumd.enum_value, argv, argc, bitflags);
|
|
|
|
if (enumval == INT_MIN) {
|
|
sds enumerr = sdsnew("argument(s) must be one of the following: ");
|
|
configEnum *enumNode = config->data.enumd.enum_value;
|
|
while(enumNode->name != NULL) {
|
|
enumerr = sdscatlen(enumerr, enumNode->name,
|
|
strlen(enumNode->name));
|
|
enumerr = sdscatlen(enumerr, ", ", 2);
|
|
enumNode++;
|
|
}
|
|
sdsrange(enumerr,0,-3); /* Remove final ", ". */
|
|
|
|
strncpy(loadbuf, enumerr, LOADBUF_SIZE);
|
|
loadbuf[LOADBUF_SIZE - 1] = '\0';
|
|
|
|
sdsfree(enumerr);
|
|
*err = loadbuf;
|
|
return 0;
|
|
}
|
|
if (config->data.enumd.is_valid_fn && !config->data.enumd.is_valid_fn(enumval, err))
|
|
return 0;
|
|
int prev = config->flags & MODULE_CONFIG ? getModuleEnumConfig(config->privdata) : *(config->data.enumd.config);
|
|
if (prev != enumval) {
|
|
if (config->flags & MODULE_CONFIG)
|
|
return setModuleEnumConfig(config->privdata, enumval, err);
|
|
*(config->data.enumd.config) = enumval;
|
|
return 1;
|
|
}
|
|
return 2;
|
|
}
|
|
|
|
static sds enumConfigGet(standardConfig *config) {
|
|
int val = config->flags & MODULE_CONFIG ? getModuleEnumConfig(config->privdata) : *(config->data.enumd.config);
|
|
int bitflags = !!(config->flags & MULTI_ARG_CONFIG);
|
|
return configEnumGetName(config->data.enumd.enum_value,val,bitflags);
|
|
}
|
|
|
|
static void enumConfigRewrite(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
int val = config->flags & MODULE_CONFIG ? getModuleEnumConfig(config->privdata) : *(config->data.enumd.config);
|
|
rewriteConfigEnumOption(state, name, val, config);
|
|
}
|
|
|
|
#define createEnumConfig(name, alias, flags, enum, config_addr, default, is_valid, apply) { \
|
|
embedCommonConfig(name, alias, flags) \
|
|
embedConfigInterface(enumConfigInit, enumConfigSet, enumConfigGet, enumConfigRewrite, apply) \
|
|
.type = ENUM_CONFIG, \
|
|
.data.enumd = { \
|
|
.config = &(config_addr), \
|
|
.default_value = (default), \
|
|
.is_valid_fn = (is_valid), \
|
|
.enum_value = (enum), \
|
|
} \
|
|
}
|
|
|
|
/* Gets a 'long long val' and sets it into the union, using a macro to get
|
|
* compile time type check. */
|
|
int setNumericType(standardConfig *config, long long val, const char **err) {
|
|
if (config->data.numeric.numeric_type == NUMERIC_TYPE_INT) {
|
|
*(config->data.numeric.config.i) = (int) val;
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_UINT) {
|
|
*(config->data.numeric.config.ui) = (unsigned int) val;
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_LONG) {
|
|
*(config->data.numeric.config.l) = (long) val;
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_ULONG) {
|
|
*(config->data.numeric.config.ul) = (unsigned long) val;
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_LONG_LONG) {
|
|
if (config->flags & MODULE_CONFIG)
|
|
return setModuleNumericConfig(config->privdata, val, err);
|
|
else *(config->data.numeric.config.ll) = (long long) val;
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_ULONG_LONG) {
|
|
*(config->data.numeric.config.ull) = (unsigned long long) val;
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_SIZE_T) {
|
|
*(config->data.numeric.config.st) = (size_t) val;
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_SSIZE_T) {
|
|
*(config->data.numeric.config.sst) = (ssize_t) val;
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_OFF_T) {
|
|
*(config->data.numeric.config.ot) = (off_t) val;
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_TIME_T) {
|
|
*(config->data.numeric.config.tt) = (time_t) val;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* Gets a 'long long val' and sets it with the value from the union, using a
|
|
* macro to get compile time type check. */
|
|
#define GET_NUMERIC_TYPE(val) \
|
|
if (config->data.numeric.numeric_type == NUMERIC_TYPE_INT) { \
|
|
val = *(config->data.numeric.config.i); \
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_UINT) { \
|
|
val = *(config->data.numeric.config.ui); \
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_LONG) { \
|
|
val = *(config->data.numeric.config.l); \
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_ULONG) { \
|
|
val = *(config->data.numeric.config.ul); \
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_LONG_LONG) { \
|
|
if (config->flags & MODULE_CONFIG) val = getModuleNumericConfig(config->privdata); \
|
|
else val = *(config->data.numeric.config.ll); \
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_ULONG_LONG) { \
|
|
val = *(config->data.numeric.config.ull); \
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_SIZE_T) { \
|
|
val = *(config->data.numeric.config.st); \
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_SSIZE_T) { \
|
|
val = *(config->data.numeric.config.sst); \
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_OFF_T) { \
|
|
val = *(config->data.numeric.config.ot); \
|
|
} else if (config->data.numeric.numeric_type == NUMERIC_TYPE_TIME_T) { \
|
|
val = *(config->data.numeric.config.tt); \
|
|
}
|
|
|
|
/* Numeric configs */
|
|
static void numericConfigInit(standardConfig *config) {
|
|
setNumericType(config, config->data.numeric.default_value, NULL);
|
|
}
|
|
|
|
static int numericBoundaryCheck(standardConfig *config, long long ll, const char **err) {
|
|
if (config->data.numeric.numeric_type == NUMERIC_TYPE_ULONG_LONG ||
|
|
config->data.numeric.numeric_type == NUMERIC_TYPE_UINT ||
|
|
config->data.numeric.numeric_type == NUMERIC_TYPE_SIZE_T) {
|
|
/* Boundary check for unsigned types */
|
|
unsigned long long ull = ll;
|
|
unsigned long long upper_bound = config->data.numeric.upper_bound;
|
|
unsigned long long lower_bound = config->data.numeric.lower_bound;
|
|
if (ull > upper_bound || ull < lower_bound) {
|
|
if (config->data.numeric.flags & OCTAL_CONFIG) {
|
|
snprintf(loadbuf, LOADBUF_SIZE,
|
|
"argument must be between %llo and %llo inclusive",
|
|
lower_bound,
|
|
upper_bound);
|
|
} else {
|
|
snprintf(loadbuf, LOADBUF_SIZE,
|
|
"argument must be between %llu and %llu inclusive",
|
|
lower_bound,
|
|
upper_bound);
|
|
}
|
|
*err = loadbuf;
|
|
return 0;
|
|
}
|
|
} else {
|
|
/* Boundary check for percentages */
|
|
if (config->data.numeric.flags & PERCENT_CONFIG && ll < 0) {
|
|
if (ll < config->data.numeric.lower_bound) {
|
|
snprintf(loadbuf, LOADBUF_SIZE,
|
|
"percentage argument must be less or equal to %lld",
|
|
-config->data.numeric.lower_bound);
|
|
*err = loadbuf;
|
|
return 0;
|
|
}
|
|
}
|
|
/* Boundary check for signed types */
|
|
else if (ll > config->data.numeric.upper_bound || ll < config->data.numeric.lower_bound) {
|
|
snprintf(loadbuf, LOADBUF_SIZE,
|
|
"argument must be between %lld and %lld inclusive",
|
|
config->data.numeric.lower_bound,
|
|
config->data.numeric.upper_bound);
|
|
*err = loadbuf;
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int numericParseString(standardConfig *config, sds value, const char **err, long long *res) {
|
|
/* First try to parse as memory */
|
|
if (config->data.numeric.flags & MEMORY_CONFIG) {
|
|
int memerr;
|
|
*res = memtoull(value, &memerr);
|
|
if (!memerr)
|
|
return 1;
|
|
}
|
|
|
|
/* Attempt to parse as percent */
|
|
if (config->data.numeric.flags & PERCENT_CONFIG &&
|
|
sdslen(value) > 1 && value[sdslen(value)-1] == '%' &&
|
|
string2ll(value, sdslen(value)-1, res) &&
|
|
*res >= 0) {
|
|
/* We store percentage as negative value */
|
|
*res = -*res;
|
|
return 1;
|
|
}
|
|
|
|
/* Attempt to parse as an octal number */
|
|
if (config->data.numeric.flags & OCTAL_CONFIG) {
|
|
char *endptr;
|
|
errno = 0;
|
|
*res = strtoll(value, &endptr, 8);
|
|
if (errno == 0 && *endptr == '\0')
|
|
return 1; /* No overflow or invalid characters */
|
|
}
|
|
|
|
/* Attempt a simple number (no special flags set) */
|
|
if (!config->data.numeric.flags && string2ll(value, sdslen(value), res))
|
|
return 1;
|
|
|
|
/* Select appropriate error string */
|
|
if (config->data.numeric.flags & MEMORY_CONFIG &&
|
|
config->data.numeric.flags & PERCENT_CONFIG)
|
|
*err = "argument must be a memory or percent value" ;
|
|
else if (config->data.numeric.flags & MEMORY_CONFIG)
|
|
*err = "argument must be a memory value";
|
|
else if (config->data.numeric.flags & OCTAL_CONFIG)
|
|
*err = "argument couldn't be parsed as an octal number";
|
|
else
|
|
*err = "argument couldn't be parsed into an integer";
|
|
return 0;
|
|
}
|
|
|
|
static int numericConfigSet(standardConfig *config, sds *argv, int argc, const char **err) {
|
|
UNUSED(argc);
|
|
long long ll, prev = 0;
|
|
|
|
if (!numericParseString(config, argv[0], err, &ll))
|
|
return 0;
|
|
|
|
if (!numericBoundaryCheck(config, ll, err))
|
|
return 0;
|
|
|
|
if (config->data.numeric.is_valid_fn && !config->data.numeric.is_valid_fn(ll, err))
|
|
return 0;
|
|
|
|
GET_NUMERIC_TYPE(prev)
|
|
if (prev != ll) {
|
|
return setNumericType(config, ll, err);
|
|
}
|
|
|
|
return 2;
|
|
}
|
|
|
|
static sds numericConfigGet(standardConfig *config) {
|
|
char buf[128];
|
|
|
|
long long value = 0;
|
|
GET_NUMERIC_TYPE(value)
|
|
|
|
if (config->data.numeric.flags & PERCENT_CONFIG && value < 0) {
|
|
int len = ll2string(buf, sizeof(buf), -value);
|
|
buf[len] = '%';
|
|
buf[len+1] = '\0';
|
|
}
|
|
else if (config->data.numeric.flags & MEMORY_CONFIG) {
|
|
ull2string(buf, sizeof(buf), value);
|
|
} else if (config->data.numeric.flags & OCTAL_CONFIG) {
|
|
snprintf(buf, sizeof(buf), "%llo", value);
|
|
} else {
|
|
ll2string(buf, sizeof(buf), value);
|
|
}
|
|
return sdsnew(buf);
|
|
}
|
|
|
|
static void numericConfigRewrite(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
long long value = 0;
|
|
|
|
GET_NUMERIC_TYPE(value)
|
|
|
|
if (config->data.numeric.flags & PERCENT_CONFIG && value < 0) {
|
|
rewriteConfigPercentOption(state, name, -value, config->data.numeric.default_value);
|
|
} else if (config->data.numeric.flags & MEMORY_CONFIG) {
|
|
rewriteConfigBytesOption(state, name, value, config->data.numeric.default_value);
|
|
} else if (config->data.numeric.flags & OCTAL_CONFIG) {
|
|
rewriteConfigOctalOption(state, name, value, config->data.numeric.default_value);
|
|
} else {
|
|
rewriteConfigNumericalOption(state, name, value, config->data.numeric.default_value);
|
|
}
|
|
}
|
|
|
|
#define embedCommonNumericalConfig(name, alias, _flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) { \
|
|
embedCommonConfig(name, alias, _flags) \
|
|
embedConfigInterface(numericConfigInit, numericConfigSet, numericConfigGet, numericConfigRewrite, apply) \
|
|
.type = NUMERIC_CONFIG, \
|
|
.data.numeric = { \
|
|
.lower_bound = (lower), \
|
|
.upper_bound = (upper), \
|
|
.default_value = (default), \
|
|
.is_valid_fn = (is_valid), \
|
|
.flags = (num_conf_flags),
|
|
|
|
#define createIntConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
.numeric_type = NUMERIC_TYPE_INT, \
|
|
.config.i = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createUIntConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
.numeric_type = NUMERIC_TYPE_UINT, \
|
|
.config.ui = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createLongConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
.numeric_type = NUMERIC_TYPE_LONG, \
|
|
.config.l = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createULongConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
.numeric_type = NUMERIC_TYPE_ULONG, \
|
|
.config.ul = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createLongLongConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
.numeric_type = NUMERIC_TYPE_LONG_LONG, \
|
|
.config.ll = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createULongLongConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
.numeric_type = NUMERIC_TYPE_ULONG_LONG, \
|
|
.config.ull = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createSizeTConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
.numeric_type = NUMERIC_TYPE_SIZE_T, \
|
|
.config.st = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createSSizeTConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
.numeric_type = NUMERIC_TYPE_SSIZE_T, \
|
|
.config.sst = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createTimeTConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
.numeric_type = NUMERIC_TYPE_TIME_T, \
|
|
.config.tt = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createOffTConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, num_conf_flags, is_valid, apply) \
|
|
.numeric_type = NUMERIC_TYPE_OFF_T, \
|
|
.config.ot = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createSpecialConfig(name, alias, modifiable, setfn, getfn, rewritefn, applyfn) { \
|
|
.type = SPECIAL_CONFIG, \
|
|
embedCommonConfig(name, alias, modifiable) \
|
|
embedConfigInterface(NULL, setfn, getfn, rewritefn, applyfn) \
|
|
}
|
|
|
|
static int isValidActiveDefrag(int val, const char **err) {
|
|
#ifndef HAVE_DEFRAG
|
|
if (val) {
|
|
*err = "Active defragmentation cannot be enabled: it "
|
|
"requires a Redis server compiled with a modified Jemalloc "
|
|
"like the one shipped by default with the Redis source "
|
|
"distribution";
|
|
return 0;
|
|
}
|
|
#else
|
|
UNUSED(val);
|
|
UNUSED(err);
|
|
#endif
|
|
return 1;
|
|
}
|
|
|
|
static int isValidDBfilename(char *val, const char **err) {
|
|
if (!pathIsBaseName(val)) {
|
|
*err = "dbfilename can't be a path, just a filename";
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int isValidAOFfilename(char *val, const char **err) {
|
|
if (!strcmp(val, "")) {
|
|
*err = "appendfilename can't be empty";
|
|
return 0;
|
|
}
|
|
if (!pathIsBaseName(val)) {
|
|
*err = "appendfilename can't be a path, just a filename";
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int isValidAOFdirname(char *val, const char **err) {
|
|
if (!strcmp(val, "")) {
|
|
*err = "appenddirname can't be empty";
|
|
return 0;
|
|
}
|
|
if (!pathIsBaseName(val)) {
|
|
*err = "appenddirname can't be a path, just a dirname";
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int isValidShutdownOnSigFlags(int val, const char **err) {
|
|
/* Individual arguments are validated by createEnumConfig logic.
|
|
* We just need to ensure valid combinations here. */
|
|
if (val & SHUTDOWN_NOSAVE && val & SHUTDOWN_SAVE) {
|
|
*err = "shutdown options SAVE and NOSAVE can't be used simultaneously";
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int isValidAnnouncedHostname(char *val, const char **err) {
|
|
if (strlen(val) >= NET_HOST_STR_LEN) {
|
|
*err = "Hostnames must be less than "
|
|
STRINGIFY(NET_HOST_STR_LEN) " characters";
|
|
return 0;
|
|
}
|
|
|
|
int i = 0;
|
|
char c;
|
|
while ((c = val[i])) {
|
|
/* We just validate the character set to make sure that everything
|
|
* is parsed and handled correctly. */
|
|
if (!((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')
|
|
|| (c >= '0' && c <= '9') || (c == '-') || (c == '.')))
|
|
{
|
|
*err = "Hostnames may only contain alphanumeric characters, "
|
|
"hyphens or dots";
|
|
return 0;
|
|
}
|
|
c = val[i++];
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* Validate specified string is a valid proc-title-template */
|
|
static int isValidProcTitleTemplate(char *val, const char **err) {
|
|
if (!validateProcTitleTemplate(val)) {
|
|
*err = "template format is invalid or contains unknown variables";
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int updateProcTitleTemplate(const char **err) {
|
|
if (redisSetProcTitle(NULL) == C_ERR) {
|
|
*err = "failed to set process title";
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int updateHZ(const char **err) {
|
|
UNUSED(err);
|
|
/* Hz is more a hint from the user, so we accept values out of range
|
|
* but cap them to reasonable values. */
|
|
if (server.config_hz < CONFIG_MIN_HZ) server.config_hz = CONFIG_MIN_HZ;
|
|
if (server.config_hz > CONFIG_MAX_HZ) server.config_hz = CONFIG_MAX_HZ;
|
|
server.hz = server.config_hz;
|
|
return 1;
|
|
}
|
|
|
|
static int updatePort(const char **err) {
|
|
if (changeListenPort(server.port, &server.ipfd, acceptTcpHandler) == C_ERR) {
|
|
*err = "Unable to listen on this port. Check server logs.";
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int updateJemallocBgThread(const char **err) {
|
|
UNUSED(err);
|
|
set_jemalloc_bg_thread(server.jemalloc_bg_thread);
|
|
return 1;
|
|
}
|
|
|
|
static int updateReplBacklogSize(const char **err) {
|
|
UNUSED(err);
|
|
resizeReplicationBacklog();
|
|
return 1;
|
|
}
|
|
|
|
static int updateMaxmemory(const char **err) {
|
|
UNUSED(err);
|
|
if (server.maxmemory) {
|
|
size_t used = zmalloc_used_memory()-freeMemoryGetNotCountedMemory();
|
|
if (server.maxmemory < used) {
|
|
serverLog(LL_WARNING,"WARNING: the new maxmemory value set via CONFIG SET (%llu) is smaller than the current memory usage (%zu). This will result in key eviction and/or the inability to accept new write commands depending on the maxmemory-policy.", server.maxmemory, used);
|
|
}
|
|
startEvictionTimeProc();
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int updateGoodSlaves(const char **err) {
|
|
UNUSED(err);
|
|
refreshGoodSlavesCount();
|
|
return 1;
|
|
}
|
|
|
|
static int updateWatchdogPeriod(const char **err) {
|
|
UNUSED(err);
|
|
applyWatchdogPeriod();
|
|
return 1;
|
|
}
|
|
|
|
static int updateAppendonly(const char **err) {
|
|
if (!server.aof_enabled && server.aof_state != AOF_OFF) {
|
|
stopAppendOnly();
|
|
} else if (server.aof_enabled && server.aof_state == AOF_OFF) {
|
|
if (startAppendOnly() == C_ERR) {
|
|
*err = "Unable to turn on AOF. Check server logs.";
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int updateAofAutoGCEnabled(const char **err) {
|
|
UNUSED(err);
|
|
if (!server.aof_disable_auto_gc) {
|
|
aofDelHistoryFiles();
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int updateSighandlerEnabled(const char **err) {
|
|
UNUSED(err);
|
|
if (server.crashlog_enabled)
|
|
setupSignalHandlers();
|
|
else
|
|
removeSignalHandlers();
|
|
return 1;
|
|
}
|
|
|
|
static int updateMaxclients(const char **err) {
|
|
unsigned int new_maxclients = server.maxclients;
|
|
adjustOpenFilesLimit();
|
|
if (server.maxclients != new_maxclients) {
|
|
static char msg[128];
|
|
sprintf(msg, "The operating system is not able to handle the specified number of clients, try with %d", server.maxclients);
|
|
*err = msg;
|
|
return 0;
|
|
}
|
|
if ((unsigned int) aeGetSetSize(server.el) <
|
|
server.maxclients + CONFIG_FDSET_INCR)
|
|
{
|
|
if (aeResizeSetSize(server.el,
|
|
server.maxclients + CONFIG_FDSET_INCR) == AE_ERR)
|
|
{
|
|
*err = "The event loop API used by Redis is not able to handle the specified number of clients";
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int updateOOMScoreAdj(const char **err) {
|
|
if (setOOMScoreAdj(-1) == C_ERR) {
|
|
*err = "Failed to set current oom_score_adj. Check server logs.";
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int updateRequirePass(const char **err) {
|
|
UNUSED(err);
|
|
/* The old "requirepass" directive just translates to setting
|
|
* a password to the default user. The only thing we do
|
|
* additionally is to remember the cleartext password in this
|
|
* case, for backward compatibility with Redis <= 5. */
|
|
ACLUpdateDefaultUserPassword(server.requirepass);
|
|
return 1;
|
|
}
|
|
|
|
static int applyBind(const char **err) {
|
|
if (changeBindAddr() == C_ERR) {
|
|
*err = "Failed to bind to specified addresses.";
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int updateClusterFlags(const char **err) {
|
|
UNUSED(err);
|
|
clusterUpdateMyselfFlags();
|
|
return 1;
|
|
}
|
|
|
|
static int updateClusterIp(const char **err) {
|
|
UNUSED(err);
|
|
clusterUpdateMyselfIp();
|
|
return 1;
|
|
}
|
|
|
|
int updateClusterHostname(const char **err) {
|
|
UNUSED(err);
|
|
clusterUpdateMyselfHostname();
|
|
return 1;
|
|
}
|
|
|
|
#ifdef USE_OPENSSL
|
|
static int applyTlsCfg(const char **err) {
|
|
UNUSED(err);
|
|
|
|
/* If TLS is enabled, try to configure OpenSSL. */
|
|
if ((server.tls_port || server.tls_replication || server.tls_cluster)
|
|
&& tlsConfigure(&server.tls_ctx_config) == C_ERR) {
|
|
*err = "Unable to update TLS configuration. Check server logs.";
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int applyTLSPort(const char **err) {
|
|
/* Configure TLS in case it wasn't enabled */
|
|
if (!isTlsConfigured() && tlsConfigure(&server.tls_ctx_config) == C_ERR) {
|
|
*err = "Unable to update TLS configuration. Check server logs.";
|
|
return 0;
|
|
}
|
|
|
|
if (changeListenPort(server.tls_port, &server.tlsfd, acceptTLSHandler) == C_ERR) {
|
|
*err = "Unable to listen on this port. Check server logs.";
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
#endif /* USE_OPENSSL */
|
|
|
|
static int setConfigDirOption(standardConfig *config, sds *argv, int argc, const char **err) {
|
|
UNUSED(config);
|
|
if (argc != 1) {
|
|
*err = "wrong number of arguments";
|
|
return 0;
|
|
}
|
|
if (chdir(argv[0]) == -1) {
|
|
*err = strerror(errno);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static sds getConfigDirOption(standardConfig *config) {
|
|
UNUSED(config);
|
|
char buf[1024];
|
|
|
|
if (getcwd(buf,sizeof(buf)) == NULL)
|
|
buf[0] = '\0';
|
|
|
|
return sdsnew(buf);
|
|
}
|
|
|
|
static int setConfigSaveOption(standardConfig *config, sds *argv, int argc, const char **err) {
|
|
UNUSED(config);
|
|
int j;
|
|
|
|
/* Special case: treat single arg "" as zero args indicating empty save configuration */
|
|
if (argc == 1 && !strcasecmp(argv[0],""))
|
|
argc = 0;
|
|
|
|
/* Perform sanity check before setting the new config:
|
|
* - Even number of args
|
|
* - Seconds >= 1, changes >= 0 */
|
|
if (argc & 1) {
|
|
*err = "Invalid save parameters";
|
|
return 0;
|
|
}
|
|
for (j = 0; j < argc; j++) {
|
|
char *eptr;
|
|
long val;
|
|
|
|
val = strtoll(argv[j], &eptr, 10);
|
|
if (eptr[0] != '\0' ||
|
|
((j & 1) == 0 && val < 1) ||
|
|
((j & 1) == 1 && val < 0)) {
|
|
*err = "Invalid save parameters";
|
|
return 0;
|
|
}
|
|
}
|
|
/* Finally set the new config */
|
|
if (!reading_config_file) {
|
|
resetServerSaveParams();
|
|
} else {
|
|
/* We don't reset save params before loading, because if they're not part
|
|
* of the file the defaults should be used.
|
|
*/
|
|
static int save_loaded = 0;
|
|
if (!save_loaded) {
|
|
save_loaded = 1;
|
|
resetServerSaveParams();
|
|
}
|
|
}
|
|
|
|
for (j = 0; j < argc; j += 2) {
|
|
time_t seconds;
|
|
int changes;
|
|
|
|
seconds = strtoll(argv[j],NULL,10);
|
|
changes = strtoll(argv[j+1],NULL,10);
|
|
appendServerSaveParams(seconds, changes);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static sds getConfigSaveOption(standardConfig *config) {
|
|
UNUSED(config);
|
|
sds buf = sdsempty();
|
|
int j;
|
|
|
|
for (j = 0; j < server.saveparamslen; j++) {
|
|
buf = sdscatprintf(buf,"%jd %d",
|
|
(intmax_t)server.saveparams[j].seconds,
|
|
server.saveparams[j].changes);
|
|
if (j != server.saveparamslen-1)
|
|
buf = sdscatlen(buf," ",1);
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
|
|
static int setConfigClientOutputBufferLimitOption(standardConfig *config, sds *argv, int argc, const char **err) {
|
|
UNUSED(config);
|
|
return updateClientOutputBufferLimit(argv, argc, err);
|
|
}
|
|
|
|
static sds getConfigClientOutputBufferLimitOption(standardConfig *config) {
|
|
UNUSED(config);
|
|
sds buf = sdsempty();
|
|
int j;
|
|
for (j = 0; j < CLIENT_TYPE_OBUF_COUNT; j++) {
|
|
buf = sdscatprintf(buf,"%s %llu %llu %ld",
|
|
getClientTypeName(j),
|
|
server.client_obuf_limits[j].hard_limit_bytes,
|
|
server.client_obuf_limits[j].soft_limit_bytes,
|
|
(long) server.client_obuf_limits[j].soft_limit_seconds);
|
|
if (j != CLIENT_TYPE_OBUF_COUNT-1)
|
|
buf = sdscatlen(buf," ",1);
|
|
}
|
|
return buf;
|
|
}
|
|
|
|
/* Parse an array of CONFIG_OOM_COUNT sds strings, validate and populate
|
|
* server.oom_score_adj_values if valid.
|
|
*/
|
|
static int setConfigOOMScoreAdjValuesOption(standardConfig *config, sds *argv, int argc, const char **err) {
|
|
int i;
|
|
int values[CONFIG_OOM_COUNT];
|
|
int change = 0;
|
|
UNUSED(config);
|
|
|
|
if (argc != CONFIG_OOM_COUNT) {
|
|
*err = "wrong number of arguments";
|
|
return 0;
|
|
}
|
|
|
|
for (i = 0; i < CONFIG_OOM_COUNT; i++) {
|
|
char *eptr;
|
|
long long val = strtoll(argv[i], &eptr, 10);
|
|
|
|
if (*eptr != '\0' || val < -2000 || val > 2000) {
|
|
if (err) *err = "Invalid oom-score-adj-values, elements must be between -2000 and 2000.";
|
|
return 0;
|
|
}
|
|
|
|
values[i] = val;
|
|
}
|
|
|
|
/* Verify that the values make sense. If they don't omit a warning but
|
|
* keep the configuration, which may still be valid for privileged processes.
|
|
*/
|
|
|
|
if (values[CONFIG_OOM_REPLICA] < values[CONFIG_OOM_MASTER] ||
|
|
values[CONFIG_OOM_BGCHILD] < values[CONFIG_OOM_REPLICA])
|
|
{
|
|
serverLog(LL_WARNING,
|
|
"The oom-score-adj-values configuration may not work for non-privileged processes! "
|
|
"Please consult the documentation.");
|
|
}
|
|
|
|
for (i = 0; i < CONFIG_OOM_COUNT; i++) {
|
|
if (server.oom_score_adj_values[i] != values[i]) {
|
|
server.oom_score_adj_values[i] = values[i];
|
|
change = 1;
|
|
}
|
|
}
|
|
|
|
return change ? 1 : 2;
|
|
}
|
|
|
|
static sds getConfigOOMScoreAdjValuesOption(standardConfig *config) {
|
|
UNUSED(config);
|
|
sds buf = sdsempty();
|
|
int j;
|
|
|
|
for (j = 0; j < CONFIG_OOM_COUNT; j++) {
|
|
buf = sdscatprintf(buf,"%d", server.oom_score_adj_values[j]);
|
|
if (j != CONFIG_OOM_COUNT-1)
|
|
buf = sdscatlen(buf," ",1);
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
|
|
static int setConfigNotifyKeyspaceEventsOption(standardConfig *config, sds *argv, int argc, const char **err) {
|
|
UNUSED(config);
|
|
if (argc != 1) {
|
|
*err = "wrong number of arguments";
|
|
return 0;
|
|
}
|
|
int flags = keyspaceEventsStringToFlags(argv[0]);
|
|
if (flags == -1) {
|
|
*err = "Invalid event class character. Use 'Ag$lshzxeKEtmdn'.";
|
|
return 0;
|
|
}
|
|
server.notify_keyspace_events = flags;
|
|
return 1;
|
|
}
|
|
|
|
static sds getConfigNotifyKeyspaceEventsOption(standardConfig *config) {
|
|
UNUSED(config);
|
|
return keyspaceEventsFlagsToString(server.notify_keyspace_events);
|
|
}
|
|
|
|
static int setConfigBindOption(standardConfig *config, sds* argv, int argc, const char **err) {
|
|
UNUSED(config);
|
|
int j;
|
|
|
|
if (argc > CONFIG_BINDADDR_MAX) {
|
|
*err = "Too many bind addresses specified.";
|
|
return 0;
|
|
}
|
|
|
|
/* A single empty argument is treated as a zero bindaddr count */
|
|
if (argc == 1 && sdslen(argv[0]) == 0) argc = 0;
|
|
|
|
/* Free old bind addresses */
|
|
for (j = 0; j < server.bindaddr_count; j++) {
|
|
zfree(server.bindaddr[j]);
|
|
}
|
|
for (j = 0; j < argc; j++)
|
|
server.bindaddr[j] = zstrdup(argv[j]);
|
|
server.bindaddr_count = argc;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int setConfigReplicaOfOption(standardConfig *config, sds* argv, int argc, const char **err) {
|
|
UNUSED(config);
|
|
|
|
if (argc != 2) {
|
|
*err = "wrong number of arguments";
|
|
return 0;
|
|
}
|
|
|
|
sdsfree(server.masterhost);
|
|
server.masterhost = NULL;
|
|
if (!strcasecmp(argv[0], "no") && !strcasecmp(argv[1], "one")) {
|
|
return 1;
|
|
}
|
|
char *ptr;
|
|
server.masterport = strtol(argv[1], &ptr, 10);
|
|
if (server.masterport < 0 || server.masterport > 65535 || *ptr != '\0') {
|
|
*err = "Invalid master port";
|
|
return 0;
|
|
}
|
|
server.masterhost = sdsnew(argv[0]);
|
|
server.repl_state = REPL_STATE_CONNECT;
|
|
return 1;
|
|
}
|
|
|
|
static sds getConfigBindOption(standardConfig *config) {
|
|
UNUSED(config);
|
|
return sdsjoin(server.bindaddr,server.bindaddr_count," ");
|
|
}
|
|
|
|
static sds getConfigReplicaOfOption(standardConfig *config) {
|
|
UNUSED(config);
|
|
char buf[256];
|
|
if (server.masterhost)
|
|
snprintf(buf,sizeof(buf),"%s %d",
|
|
server.masterhost, server.masterport);
|
|
else
|
|
buf[0] = '\0';
|
|
return sdsnew(buf);
|
|
}
|
|
|
|
int allowProtectedAction(int config, client *c) {
|
|
return (config == PROTECTED_ACTION_ALLOWED_YES) ||
|
|
(config == PROTECTED_ACTION_ALLOWED_LOCAL && islocalClient(c));
|
|
}
|
|
|
|
|
|
static int setConfigLatencyTrackingInfoPercentilesOutputOption(standardConfig *config, sds *argv, int argc, const char **err) {
|
|
UNUSED(config);
|
|
zfree(server.latency_tracking_info_percentiles);
|
|
server.latency_tracking_info_percentiles = NULL;
|
|
server.latency_tracking_info_percentiles_len = argc;
|
|
|
|
/* Special case: treat single arg "" as zero args indicating empty percentile configuration */
|
|
if (argc == 1 && sdslen(argv[0]) == 0)
|
|
server.latency_tracking_info_percentiles_len = 0;
|
|
else
|
|
server.latency_tracking_info_percentiles = zmalloc(sizeof(double)*argc);
|
|
|
|
for (int j = 0; j < server.latency_tracking_info_percentiles_len; j++) {
|
|
double percentile;
|
|
if (!string2d(argv[j], sdslen(argv[j]), &percentile)) {
|
|
*err = "Invalid latency-tracking-info-percentiles parameters";
|
|
goto configerr;
|
|
}
|
|
if (percentile > 100.0 || percentile < 0.0) {
|
|
*err = "latency-tracking-info-percentiles parameters should sit between [0.0,100.0]";
|
|
goto configerr;
|
|
}
|
|
server.latency_tracking_info_percentiles[j] = percentile;
|
|
}
|
|
|
|
return 1;
|
|
configerr:
|
|
zfree(server.latency_tracking_info_percentiles);
|
|
server.latency_tracking_info_percentiles = NULL;
|
|
server.latency_tracking_info_percentiles_len = 0;
|
|
return 0;
|
|
}
|
|
|
|
static sds getConfigLatencyTrackingInfoPercentilesOutputOption(standardConfig *config) {
|
|
UNUSED(config);
|
|
sds buf = sdsempty();
|
|
for (int j = 0; j < server.latency_tracking_info_percentiles_len; j++) {
|
|
char fbuf[128];
|
|
size_t len = sprintf(fbuf, "%f", server.latency_tracking_info_percentiles[j]);
|
|
len = trimDoubleString(fbuf, len);
|
|
buf = sdscatlen(buf, fbuf, len);
|
|
if (j != server.latency_tracking_info_percentiles_len-1)
|
|
buf = sdscatlen(buf," ",1);
|
|
}
|
|
return buf;
|
|
}
|
|
|
|
/* Rewrite the latency-tracking-info-percentiles option. */
|
|
void rewriteConfigLatencyTrackingInfoPercentilesOutputOption(standardConfig *config, const char *name, struct rewriteConfigState *state) {
|
|
UNUSED(config);
|
|
sds line = sdsnew(name);
|
|
/* Rewrite latency-tracking-info-percentiles parameters,
|
|
* or an empty 'latency-tracking-info-percentiles ""' line to avoid the
|
|
* defaults from being used.
|
|
*/
|
|
if (!server.latency_tracking_info_percentiles_len) {
|
|
line = sdscat(line," \"\"");
|
|
} else {
|
|
for (int j = 0; j < server.latency_tracking_info_percentiles_len; j++) {
|
|
char fbuf[128];
|
|
size_t len = sprintf(fbuf, " %f", server.latency_tracking_info_percentiles[j]);
|
|
len = trimDoubleString(fbuf, len);
|
|
line = sdscatlen(line, fbuf, len);
|
|
}
|
|
}
|
|
rewriteConfigRewriteLine(state,name,line,1);
|
|
}
|
|
|
|
standardConfig static_configs[] = {
|
|
/* Bool configs */
|
|
createBoolConfig("rdbchecksum", NULL, IMMUTABLE_CONFIG, server.rdb_checksum, 1, NULL, NULL),
|
|
createBoolConfig("daemonize", NULL, IMMUTABLE_CONFIG, server.daemonize, 0, NULL, NULL),
|
|
createBoolConfig("io-threads-do-reads", NULL, DEBUG_CONFIG | IMMUTABLE_CONFIG, server.io_threads_do_reads, 0,NULL, NULL), /* Read + parse from threads? */
|
|
createBoolConfig("always-show-logo", NULL, IMMUTABLE_CONFIG, server.always_show_logo, 0, NULL, NULL),
|
|
createBoolConfig("protected-mode", NULL, MODIFIABLE_CONFIG, server.protected_mode, 1, NULL, NULL),
|
|
createBoolConfig("rdbcompression", NULL, MODIFIABLE_CONFIG, server.rdb_compression, 1, NULL, NULL),
|
|
createBoolConfig("rdb-del-sync-files", NULL, MODIFIABLE_CONFIG, server.rdb_del_sync_files, 0, NULL, NULL),
|
|
createBoolConfig("activerehashing", NULL, MODIFIABLE_CONFIG, server.activerehashing, 1, NULL, NULL),
|
|
createBoolConfig("stop-writes-on-bgsave-error", NULL, MODIFIABLE_CONFIG, server.stop_writes_on_bgsave_err, 1, NULL, NULL),
|
|
createBoolConfig("set-proc-title", NULL, IMMUTABLE_CONFIG, server.set_proc_title, 1, NULL, NULL), /* Should setproctitle be used? */
|
|
createBoolConfig("dynamic-hz", NULL, MODIFIABLE_CONFIG, server.dynamic_hz, 1, NULL, NULL), /* Adapt hz to # of clients.*/
|
|
createBoolConfig("lazyfree-lazy-eviction", NULL, DEBUG_CONFIG | MODIFIABLE_CONFIG, server.lazyfree_lazy_eviction, 0, NULL, NULL),
|
|
createBoolConfig("lazyfree-lazy-expire", NULL, DEBUG_CONFIG | MODIFIABLE_CONFIG, server.lazyfree_lazy_expire, 0, NULL, NULL),
|
|
createBoolConfig("lazyfree-lazy-server-del", NULL, DEBUG_CONFIG | MODIFIABLE_CONFIG, server.lazyfree_lazy_server_del, 0, NULL, NULL),
|
|
createBoolConfig("lazyfree-lazy-user-del", NULL, DEBUG_CONFIG | MODIFIABLE_CONFIG, server.lazyfree_lazy_user_del , 0, NULL, NULL),
|
|
createBoolConfig("lazyfree-lazy-user-flush", NULL, DEBUG_CONFIG | MODIFIABLE_CONFIG, server.lazyfree_lazy_user_flush , 0, NULL, NULL),
|
|
createBoolConfig("repl-disable-tcp-nodelay", NULL, MODIFIABLE_CONFIG, server.repl_disable_tcp_nodelay, 0, NULL, NULL),
|
|
createBoolConfig("repl-diskless-sync", NULL, DEBUG_CONFIG | MODIFIABLE_CONFIG, server.repl_diskless_sync, 1, NULL, NULL),
|
|
createBoolConfig("aof-rewrite-incremental-fsync", NULL, MODIFIABLE_CONFIG, server.aof_rewrite_incremental_fsync, 1, NULL, NULL),
|
|
createBoolConfig("no-appendfsync-on-rewrite", NULL, MODIFIABLE_CONFIG, server.aof_no_fsync_on_rewrite, 0, NULL, NULL),
|
|
createBoolConfig("cluster-require-full-coverage", NULL, MODIFIABLE_CONFIG, server.cluster_require_full_coverage, 1, NULL, NULL),
|
|
createBoolConfig("rdb-save-incremental-fsync", NULL, MODIFIABLE_CONFIG, server.rdb_save_incremental_fsync, 1, NULL, NULL),
|
|
createBoolConfig("aof-load-truncated", NULL, MODIFIABLE_CONFIG, server.aof_load_truncated, 1, NULL, NULL),
|
|
createBoolConfig("aof-use-rdb-preamble", NULL, MODIFIABLE_CONFIG, server.aof_use_rdb_preamble, 1, NULL, NULL),
|
|
createBoolConfig("aof-timestamp-enabled", NULL, MODIFIABLE_CONFIG, server.aof_timestamp_enabled, 0, NULL, NULL),
|
|
createBoolConfig("cluster-replica-no-failover", "cluster-slave-no-failover", MODIFIABLE_CONFIG, server.cluster_slave_no_failover, 0, NULL, updateClusterFlags), /* Failover by default. */
|
|
createBoolConfig("replica-lazy-flush", "slave-lazy-flush", MODIFIABLE_CONFIG, server.repl_slave_lazy_flush, 0, NULL, NULL),
|
|
createBoolConfig("replica-serve-stale-data", "slave-serve-stale-data", MODIFIABLE_CONFIG, server.repl_serve_stale_data, 1, NULL, NULL),
|
|
createBoolConfig("replica-read-only", "slave-read-only", DEBUG_CONFIG | MODIFIABLE_CONFIG, server.repl_slave_ro, 1, NULL, NULL),
|
|
createBoolConfig("replica-ignore-maxmemory", "slave-ignore-maxmemory", MODIFIABLE_CONFIG, server.repl_slave_ignore_maxmemory, 1, NULL, NULL),
|
|
createBoolConfig("jemalloc-bg-thread", NULL, MODIFIABLE_CONFIG, server.jemalloc_bg_thread, 1, NULL, updateJemallocBgThread),
|
|
createBoolConfig("activedefrag", NULL, DEBUG_CONFIG | MODIFIABLE_CONFIG, server.active_defrag_enabled, 0, isValidActiveDefrag, NULL),
|
|
createBoolConfig("syslog-enabled", NULL, IMMUTABLE_CONFIG, server.syslog_enabled, 0, NULL, NULL),
|
|
createBoolConfig("cluster-enabled", NULL, IMMUTABLE_CONFIG, server.cluster_enabled, 0, NULL, NULL),
|
|
createBoolConfig("appendonly", NULL, MODIFIABLE_CONFIG | DENY_LOADING_CONFIG, server.aof_enabled, 0, NULL, updateAppendonly),
|
|
createBoolConfig("cluster-allow-reads-when-down", NULL, MODIFIABLE_CONFIG, server.cluster_allow_reads_when_down, 0, NULL, NULL),
|
|
createBoolConfig("cluster-allow-pubsubshard-when-down", NULL, MODIFIABLE_CONFIG, server.cluster_allow_pubsubshard_when_down, 1, NULL, NULL),
|
|
createBoolConfig("crash-log-enabled", NULL, MODIFIABLE_CONFIG, server.crashlog_enabled, 1, NULL, updateSighandlerEnabled),
|
|
createBoolConfig("crash-memcheck-enabled", NULL, MODIFIABLE_CONFIG, server.memcheck_enabled, 1, NULL, NULL),
|
|
createBoolConfig("use-exit-on-panic", NULL, MODIFIABLE_CONFIG | HIDDEN_CONFIG, server.use_exit_on_panic, 0, NULL, NULL),
|
|
createBoolConfig("disable-thp", NULL, IMMUTABLE_CONFIG, server.disable_thp, 1, NULL, NULL),
|
|
createBoolConfig("cluster-allow-replica-migration", NULL, MODIFIABLE_CONFIG, server.cluster_allow_replica_migration, 1, NULL, NULL),
|
|
createBoolConfig("replica-announced", NULL, MODIFIABLE_CONFIG, server.replica_announced, 1, NULL, NULL),
|
|
createBoolConfig("latency-tracking", NULL, MODIFIABLE_CONFIG, server.latency_tracking_enabled, 1, NULL, NULL),
|
|
createBoolConfig("aof-disable-auto-gc", NULL, MODIFIABLE_CONFIG, server.aof_disable_auto_gc, 0, NULL, updateAofAutoGCEnabled),
|
|
createBoolConfig("replica-ignore-disk-write-errors", NULL, MODIFIABLE_CONFIG, server.repl_ignore_disk_write_error, 0, NULL, NULL),
|
|
|
|
/* String Configs */
|
|
createStringConfig("aclfile", NULL, IMMUTABLE_CONFIG, ALLOW_EMPTY_STRING, server.acl_filename, "", NULL, NULL),
|
|
createStringConfig("unixsocket", NULL, IMMUTABLE_CONFIG, EMPTY_STRING_IS_NULL, server.unixsocket, NULL, NULL, NULL),
|
|
createStringConfig("pidfile", NULL, IMMUTABLE_CONFIG, EMPTY_STRING_IS_NULL, server.pidfile, NULL, NULL, NULL),
|
|
createStringConfig("replica-announce-ip", "slave-announce-ip", MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.slave_announce_ip, NULL, NULL, NULL),
|
|
createStringConfig("masteruser", NULL, MODIFIABLE_CONFIG | SENSITIVE_CONFIG, EMPTY_STRING_IS_NULL, server.masteruser, NULL, NULL, NULL),
|
|
createStringConfig("cluster-announce-ip", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.cluster_announce_ip, NULL, NULL, updateClusterIp),
|
|
createStringConfig("cluster-config-file", NULL, IMMUTABLE_CONFIG, ALLOW_EMPTY_STRING, server.cluster_configfile, "nodes.conf", NULL, NULL),
|
|
createStringConfig("cluster-announce-hostname", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.cluster_announce_hostname, NULL, isValidAnnouncedHostname, updateClusterHostname),
|
|
createStringConfig("syslog-ident", NULL, IMMUTABLE_CONFIG, ALLOW_EMPTY_STRING, server.syslog_ident, "redis", NULL, NULL),
|
|
createStringConfig("dbfilename", NULL, MODIFIABLE_CONFIG | PROTECTED_CONFIG, ALLOW_EMPTY_STRING, server.rdb_filename, "dump.rdb", isValidDBfilename, NULL),
|
|
createStringConfig("appendfilename", NULL, IMMUTABLE_CONFIG, ALLOW_EMPTY_STRING, server.aof_filename, "appendonly.aof", isValidAOFfilename, NULL),
|
|
createStringConfig("appenddirname", NULL, IMMUTABLE_CONFIG, ALLOW_EMPTY_STRING, server.aof_dirname, "appendonlydir", isValidAOFdirname, NULL),
|
|
createStringConfig("server_cpulist", NULL, IMMUTABLE_CONFIG, EMPTY_STRING_IS_NULL, server.server_cpulist, NULL, NULL, NULL),
|
|
createStringConfig("bio_cpulist", NULL, IMMUTABLE_CONFIG, EMPTY_STRING_IS_NULL, server.bio_cpulist, NULL, NULL, NULL),
|
|
createStringConfig("aof_rewrite_cpulist", NULL, IMMUTABLE_CONFIG, EMPTY_STRING_IS_NULL, server.aof_rewrite_cpulist, NULL, NULL, NULL),
|
|
createStringConfig("bgsave_cpulist", NULL, IMMUTABLE_CONFIG, EMPTY_STRING_IS_NULL, server.bgsave_cpulist, NULL, NULL, NULL),
|
|
createStringConfig("ignore-warnings", NULL, MODIFIABLE_CONFIG, ALLOW_EMPTY_STRING, server.ignore_warnings, "", NULL, NULL),
|
|
createStringConfig("proc-title-template", NULL, MODIFIABLE_CONFIG, ALLOW_EMPTY_STRING, server.proc_title_template, CONFIG_DEFAULT_PROC_TITLE_TEMPLATE, isValidProcTitleTemplate, updateProcTitleTemplate),
|
|
createStringConfig("bind-source-addr", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.bind_source_addr, NULL, NULL, NULL),
|
|
createStringConfig("logfile", NULL, IMMUTABLE_CONFIG, ALLOW_EMPTY_STRING, server.logfile, "", NULL, NULL),
|
|
|
|
/* SDS Configs */
|
|
createSDSConfig("masterauth", NULL, MODIFIABLE_CONFIG | SENSITIVE_CONFIG, EMPTY_STRING_IS_NULL, server.masterauth, NULL, NULL, NULL),
|
|
createSDSConfig("requirepass", NULL, MODIFIABLE_CONFIG | SENSITIVE_CONFIG, EMPTY_STRING_IS_NULL, server.requirepass, NULL, NULL, updateRequirePass),
|
|
|
|
/* Enum Configs */
|
|
createEnumConfig("supervised", NULL, IMMUTABLE_CONFIG, supervised_mode_enum, server.supervised_mode, SUPERVISED_NONE, NULL, NULL),
|
|
createEnumConfig("syslog-facility", NULL, IMMUTABLE_CONFIG, syslog_facility_enum, server.syslog_facility, LOG_LOCAL0, NULL, NULL),
|
|
createEnumConfig("repl-diskless-load", NULL, DEBUG_CONFIG | MODIFIABLE_CONFIG | DENY_LOADING_CONFIG, repl_diskless_load_enum, server.repl_diskless_load, REPL_DISKLESS_LOAD_DISABLED, NULL, NULL),
|
|
createEnumConfig("loglevel", NULL, MODIFIABLE_CONFIG, loglevel_enum, server.verbosity, LL_NOTICE, NULL, NULL),
|
|
createEnumConfig("maxmemory-policy", NULL, MODIFIABLE_CONFIG, maxmemory_policy_enum, server.maxmemory_policy, MAXMEMORY_NO_EVICTION, NULL, NULL),
|
|
createEnumConfig("appendfsync", NULL, MODIFIABLE_CONFIG, aof_fsync_enum, server.aof_fsync, AOF_FSYNC_EVERYSEC, NULL, NULL),
|
|
createEnumConfig("oom-score-adj", NULL, MODIFIABLE_CONFIG, oom_score_adj_enum, server.oom_score_adj, OOM_SCORE_ADJ_NO, NULL, updateOOMScoreAdj),
|
|
createEnumConfig("acl-pubsub-default", NULL, MODIFIABLE_CONFIG, acl_pubsub_default_enum, server.acl_pubsub_default, 0, NULL, NULL),
|
|
createEnumConfig("sanitize-dump-payload", NULL, DEBUG_CONFIG | MODIFIABLE_CONFIG, sanitize_dump_payload_enum, server.sanitize_dump_payload, SANITIZE_DUMP_NO, NULL, NULL),
|
|
createEnumConfig("enable-protected-configs", NULL, IMMUTABLE_CONFIG, protected_action_enum, server.enable_protected_configs, PROTECTED_ACTION_ALLOWED_NO, NULL, NULL),
|
|
createEnumConfig("enable-debug-command", NULL, IMMUTABLE_CONFIG, protected_action_enum, server.enable_debug_cmd, PROTECTED_ACTION_ALLOWED_NO, NULL, NULL),
|
|
createEnumConfig("enable-module-command", NULL, IMMUTABLE_CONFIG, protected_action_enum, server.enable_module_cmd, PROTECTED_ACTION_ALLOWED_NO, NULL, NULL),
|
|
createEnumConfig("cluster-preferred-endpoint-type", NULL, MODIFIABLE_CONFIG, cluster_preferred_endpoint_type_enum, server.cluster_preferred_endpoint_type, CLUSTER_ENDPOINT_TYPE_IP, NULL, NULL),
|
|
createEnumConfig("propagation-error-behavior", NULL, MODIFIABLE_CONFIG, propagation_error_behavior_enum, server.propagation_error_behavior, PROPAGATION_ERR_BEHAVIOR_IGNORE, NULL, NULL),
|
|
createEnumConfig("shutdown-on-sigint", NULL, MODIFIABLE_CONFIG | MULTI_ARG_CONFIG, shutdown_on_sig_enum, server.shutdown_on_sigint, 0, isValidShutdownOnSigFlags, NULL),
|
|
createEnumConfig("shutdown-on-sigterm", NULL, MODIFIABLE_CONFIG | MULTI_ARG_CONFIG, shutdown_on_sig_enum, server.shutdown_on_sigterm, 0, isValidShutdownOnSigFlags, NULL),
|
|
|
|
/* Integer configs */
|
|
createIntConfig("databases", NULL, IMMUTABLE_CONFIG, 1, INT_MAX, server.dbnum, 16, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("port", NULL, MODIFIABLE_CONFIG, 0, 65535, server.port, 6379, INTEGER_CONFIG, NULL, updatePort), /* TCP port. */
|
|
createIntConfig("io-threads", NULL, DEBUG_CONFIG | IMMUTABLE_CONFIG, 1, 128, server.io_threads_num, 1, INTEGER_CONFIG, NULL, NULL), /* Single threaded by default */
|
|
createIntConfig("auto-aof-rewrite-percentage", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.aof_rewrite_perc, 100, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("cluster-replica-validity-factor", "cluster-slave-validity-factor", MODIFIABLE_CONFIG, 0, INT_MAX, server.cluster_slave_validity_factor, 10, INTEGER_CONFIG, NULL, NULL), /* Slave max data age factor. */
|
|
createIntConfig("list-max-listpack-size", "list-max-ziplist-size", MODIFIABLE_CONFIG, INT_MIN, INT_MAX, server.list_max_listpack_size, -2, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("tcp-keepalive", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.tcpkeepalive, 300, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("cluster-migration-barrier", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.cluster_migration_barrier, 1, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("active-defrag-cycle-min", NULL, MODIFIABLE_CONFIG, 1, 99, server.active_defrag_cycle_min, 1, INTEGER_CONFIG, NULL, NULL), /* Default: 1% CPU min (at lower threshold) */
|
|
createIntConfig("active-defrag-cycle-max", NULL, MODIFIABLE_CONFIG, 1, 99, server.active_defrag_cycle_max, 25, INTEGER_CONFIG, NULL, NULL), /* Default: 25% CPU max (at upper threshold) */
|
|
createIntConfig("active-defrag-threshold-lower", NULL, MODIFIABLE_CONFIG, 0, 1000, server.active_defrag_threshold_lower, 10, INTEGER_CONFIG, NULL, NULL), /* Default: don't defrag when fragmentation is below 10% */
|
|
createIntConfig("active-defrag-threshold-upper", NULL, MODIFIABLE_CONFIG, 0, 1000, server.active_defrag_threshold_upper, 100, INTEGER_CONFIG, NULL, NULL), /* Default: maximum defrag force at 100% fragmentation */
|
|
createIntConfig("lfu-log-factor", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.lfu_log_factor, 10, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("lfu-decay-time", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.lfu_decay_time, 1, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("replica-priority", "slave-priority", MODIFIABLE_CONFIG, 0, INT_MAX, server.slave_priority, 100, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("repl-diskless-sync-delay", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.repl_diskless_sync_delay, 5, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("maxmemory-samples", NULL, MODIFIABLE_CONFIG, 1, INT_MAX, server.maxmemory_samples, 5, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("maxmemory-eviction-tenacity", NULL, MODIFIABLE_CONFIG, 0, 100, server.maxmemory_eviction_tenacity, 10, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("timeout", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.maxidletime, 0, INTEGER_CONFIG, NULL, NULL), /* Default client timeout: infinite */
|
|
createIntConfig("replica-announce-port", "slave-announce-port", MODIFIABLE_CONFIG, 0, 65535, server.slave_announce_port, 0, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("tcp-backlog", NULL, IMMUTABLE_CONFIG, 0, INT_MAX, server.tcp_backlog, 511, INTEGER_CONFIG, NULL, NULL), /* TCP listen backlog. */
|
|
createIntConfig("cluster-port", NULL, IMMUTABLE_CONFIG, 0, 65535, server.cluster_port, 0, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("cluster-announce-bus-port", NULL, MODIFIABLE_CONFIG, 0, 65535, server.cluster_announce_bus_port, 0, INTEGER_CONFIG, NULL, NULL), /* Default: Use +10000 offset. */
|
|
createIntConfig("cluster-announce-port", NULL, MODIFIABLE_CONFIG, 0, 65535, server.cluster_announce_port, 0, INTEGER_CONFIG, NULL, NULL), /* Use server.port */
|
|
createIntConfig("cluster-announce-tls-port", NULL, MODIFIABLE_CONFIG, 0, 65535, server.cluster_announce_tls_port, 0, INTEGER_CONFIG, NULL, NULL), /* Use server.tls_port */
|
|
createIntConfig("repl-timeout", NULL, MODIFIABLE_CONFIG, 1, INT_MAX, server.repl_timeout, 60, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("repl-ping-replica-period", "repl-ping-slave-period", MODIFIABLE_CONFIG, 1, INT_MAX, server.repl_ping_slave_period, 10, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("list-compress-depth", NULL, DEBUG_CONFIG | MODIFIABLE_CONFIG, 0, INT_MAX, server.list_compress_depth, 0, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("rdb-key-save-delay", NULL, MODIFIABLE_CONFIG | HIDDEN_CONFIG, INT_MIN, INT_MAX, server.rdb_key_save_delay, 0, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("key-load-delay", NULL, MODIFIABLE_CONFIG | HIDDEN_CONFIG, INT_MIN, INT_MAX, server.key_load_delay, 0, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("active-expire-effort", NULL, MODIFIABLE_CONFIG, 1, 10, server.active_expire_effort, 1, INTEGER_CONFIG, NULL, NULL), /* From 1 to 10. */
|
|
createIntConfig("hz", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.config_hz, CONFIG_DEFAULT_HZ, INTEGER_CONFIG, NULL, updateHZ),
|
|
createIntConfig("min-replicas-to-write", "min-slaves-to-write", MODIFIABLE_CONFIG, 0, INT_MAX, server.repl_min_slaves_to_write, 0, INTEGER_CONFIG, NULL, updateGoodSlaves),
|
|
createIntConfig("min-replicas-max-lag", "min-slaves-max-lag", MODIFIABLE_CONFIG, 0, INT_MAX, server.repl_min_slaves_max_lag, 10, INTEGER_CONFIG, NULL, updateGoodSlaves),
|
|
createIntConfig("watchdog-period", NULL, MODIFIABLE_CONFIG | HIDDEN_CONFIG, 0, INT_MAX, server.watchdog_period, 0, INTEGER_CONFIG, NULL, updateWatchdogPeriod),
|
|
createIntConfig("shutdown-timeout", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.shutdown_timeout, 10, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("repl-diskless-sync-max-replicas", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.repl_diskless_sync_max_replicas, 0, INTEGER_CONFIG, NULL, NULL),
|
|
|
|
/* Unsigned int configs */
|
|
createUIntConfig("maxclients", NULL, MODIFIABLE_CONFIG, 1, UINT_MAX, server.maxclients, 10000, INTEGER_CONFIG, NULL, updateMaxclients),
|
|
createUIntConfig("unixsocketperm", NULL, IMMUTABLE_CONFIG, 0, 0777, server.unixsocketperm, 0, OCTAL_CONFIG, NULL, NULL),
|
|
createUIntConfig("socket-mark-id", NULL, IMMUTABLE_CONFIG, 0, UINT_MAX, server.socket_mark_id, 0, INTEGER_CONFIG, NULL, NULL),
|
|
|
|
/* Unsigned Long configs */
|
|
createULongConfig("active-defrag-max-scan-fields", NULL, MODIFIABLE_CONFIG, 1, LONG_MAX, server.active_defrag_max_scan_fields, 1000, INTEGER_CONFIG, NULL, NULL), /* Default: keys with more than 1000 fields will be processed separately */
|
|
createULongConfig("slowlog-max-len", NULL, MODIFIABLE_CONFIG, 0, LONG_MAX, server.slowlog_max_len, 128, INTEGER_CONFIG, NULL, NULL),
|
|
createULongConfig("acllog-max-len", NULL, MODIFIABLE_CONFIG, 0, LONG_MAX, server.acllog_max_len, 128, INTEGER_CONFIG, NULL, NULL),
|
|
|
|
/* Long Long configs */
|
|
createLongLongConfig("busy-reply-threshold", "lua-time-limit", MODIFIABLE_CONFIG, 0, LONG_MAX, server.busy_reply_threshold, 5000, INTEGER_CONFIG, NULL, NULL),/* milliseconds */
|
|
createLongLongConfig("cluster-node-timeout", NULL, MODIFIABLE_CONFIG, 0, LLONG_MAX, server.cluster_node_timeout, 15000, INTEGER_CONFIG, NULL, NULL),
|
|
createLongLongConfig("slowlog-log-slower-than", NULL, MODIFIABLE_CONFIG, -1, LLONG_MAX, server.slowlog_log_slower_than, 10000, INTEGER_CONFIG, NULL, NULL),
|
|
createLongLongConfig("latency-monitor-threshold", NULL, MODIFIABLE_CONFIG, 0, LLONG_MAX, server.latency_monitor_threshold, 0, INTEGER_CONFIG, NULL, NULL),
|
|
createLongLongConfig("proto-max-bulk-len", NULL, DEBUG_CONFIG | MODIFIABLE_CONFIG, 1024*1024, LONG_MAX, server.proto_max_bulk_len, 512ll*1024*1024, MEMORY_CONFIG, NULL, NULL), /* Bulk request max size */
|
|
createLongLongConfig("stream-node-max-entries", NULL, MODIFIABLE_CONFIG, 0, LLONG_MAX, server.stream_node_max_entries, 100, INTEGER_CONFIG, NULL, NULL),
|
|
createLongLongConfig("repl-backlog-size", NULL, MODIFIABLE_CONFIG, 1, LLONG_MAX, server.repl_backlog_size, 1024*1024, MEMORY_CONFIG, NULL, updateReplBacklogSize), /* Default: 1mb */
|
|
|
|
/* Unsigned Long Long configs */
|
|
createULongLongConfig("maxmemory", NULL, MODIFIABLE_CONFIG, 0, ULLONG_MAX, server.maxmemory, 0, MEMORY_CONFIG, NULL, updateMaxmemory),
|
|
createULongLongConfig("cluster-link-sendbuf-limit", NULL, MODIFIABLE_CONFIG, 0, ULLONG_MAX, server.cluster_link_sendbuf_limit_bytes, 0, MEMORY_CONFIG, NULL, NULL),
|
|
|
|
/* Size_t configs */
|
|
createSizeTConfig("hash-max-listpack-entries", "hash-max-ziplist-entries", MODIFIABLE_CONFIG, 0, LONG_MAX, server.hash_max_listpack_entries, 512, INTEGER_CONFIG, NULL, NULL),
|
|
createSizeTConfig("set-max-intset-entries", NULL, MODIFIABLE_CONFIG, 0, LONG_MAX, server.set_max_intset_entries, 512, INTEGER_CONFIG, NULL, NULL),
|
|
createSizeTConfig("zset-max-listpack-entries", "zset-max-ziplist-entries", MODIFIABLE_CONFIG, 0, LONG_MAX, server.zset_max_listpack_entries, 128, INTEGER_CONFIG, NULL, NULL),
|
|
createSizeTConfig("active-defrag-ignore-bytes", NULL, MODIFIABLE_CONFIG, 1, LLONG_MAX, server.active_defrag_ignore_bytes, 100<<20, MEMORY_CONFIG, NULL, NULL), /* Default: don't defrag if frag overhead is below 100mb */
|
|
createSizeTConfig("hash-max-listpack-value", "hash-max-ziplist-value", MODIFIABLE_CONFIG, 0, LONG_MAX, server.hash_max_listpack_value, 64, MEMORY_CONFIG, NULL, NULL),
|
|
createSizeTConfig("stream-node-max-bytes", NULL, MODIFIABLE_CONFIG, 0, LONG_MAX, server.stream_node_max_bytes, 4096, MEMORY_CONFIG, NULL, NULL),
|
|
createSizeTConfig("zset-max-listpack-value", "zset-max-ziplist-value", MODIFIABLE_CONFIG, 0, LONG_MAX, server.zset_max_listpack_value, 64, MEMORY_CONFIG, NULL, NULL),
|
|
createSizeTConfig("hll-sparse-max-bytes", NULL, MODIFIABLE_CONFIG, 0, LONG_MAX, server.hll_sparse_max_bytes, 3000, MEMORY_CONFIG, NULL, NULL),
|
|
createSizeTConfig("tracking-table-max-keys", NULL, MODIFIABLE_CONFIG, 0, LONG_MAX, server.tracking_table_max_keys, 1000000, INTEGER_CONFIG, NULL, NULL), /* Default: 1 million keys max. */
|
|
createSizeTConfig("client-query-buffer-limit", NULL, DEBUG_CONFIG | MODIFIABLE_CONFIG, 1024*1024, LONG_MAX, server.client_max_querybuf_len, 1024*1024*1024, MEMORY_CONFIG, NULL, NULL), /* Default: 1GB max query buffer. */
|
|
createSSizeTConfig("maxmemory-clients", NULL, MODIFIABLE_CONFIG, -100, SSIZE_MAX, server.maxmemory_clients, 0, MEMORY_CONFIG | PERCENT_CONFIG, NULL, NULL),
|
|
|
|
/* Other configs */
|
|
createTimeTConfig("repl-backlog-ttl", NULL, MODIFIABLE_CONFIG, 0, LONG_MAX, server.repl_backlog_time_limit, 60*60, INTEGER_CONFIG, NULL, NULL), /* Default: 1 hour */
|
|
createOffTConfig("auto-aof-rewrite-min-size", NULL, MODIFIABLE_CONFIG, 0, LLONG_MAX, server.aof_rewrite_min_size, 64*1024*1024, MEMORY_CONFIG, NULL, NULL),
|
|
createOffTConfig("loading-process-events-interval-bytes", NULL, MODIFIABLE_CONFIG | HIDDEN_CONFIG, 1024, INT_MAX, server.loading_process_events_interval_bytes, 1024*1024*2, INTEGER_CONFIG, NULL, NULL),
|
|
|
|
#ifdef USE_OPENSSL
|
|
createIntConfig("tls-port", NULL, MODIFIABLE_CONFIG, 0, 65535, server.tls_port, 0, INTEGER_CONFIG, NULL, applyTLSPort), /* TCP port. */
|
|
createIntConfig("tls-session-cache-size", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.tls_ctx_config.session_cache_size, 20*1024, INTEGER_CONFIG, NULL, applyTlsCfg),
|
|
createIntConfig("tls-session-cache-timeout", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.tls_ctx_config.session_cache_timeout, 300, INTEGER_CONFIG, NULL, applyTlsCfg),
|
|
createBoolConfig("tls-cluster", NULL, MODIFIABLE_CONFIG, server.tls_cluster, 0, NULL, applyTlsCfg),
|
|
createBoolConfig("tls-replication", NULL, MODIFIABLE_CONFIG, server.tls_replication, 0, NULL, applyTlsCfg),
|
|
createEnumConfig("tls-auth-clients", NULL, MODIFIABLE_CONFIG, tls_auth_clients_enum, server.tls_auth_clients, TLS_CLIENT_AUTH_YES, NULL, NULL),
|
|
createBoolConfig("tls-prefer-server-ciphers", NULL, MODIFIABLE_CONFIG, server.tls_ctx_config.prefer_server_ciphers, 0, NULL, applyTlsCfg),
|
|
createBoolConfig("tls-session-caching", NULL, MODIFIABLE_CONFIG, server.tls_ctx_config.session_caching, 1, NULL, applyTlsCfg),
|
|
createStringConfig("tls-cert-file", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.cert_file, NULL, NULL, applyTlsCfg),
|
|
createStringConfig("tls-key-file", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.key_file, NULL, NULL, applyTlsCfg),
|
|
createStringConfig("tls-key-file-pass", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.key_file_pass, NULL, NULL, applyTlsCfg),
|
|
createStringConfig("tls-client-cert-file", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.client_cert_file, NULL, NULL, applyTlsCfg),
|
|
createStringConfig("tls-client-key-file", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.client_key_file, NULL, NULL, applyTlsCfg),
|
|
createStringConfig("tls-client-key-file-pass", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.client_key_file_pass, NULL, NULL, applyTlsCfg),
|
|
createStringConfig("tls-dh-params-file", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.dh_params_file, NULL, NULL, applyTlsCfg),
|
|
createStringConfig("tls-ca-cert-file", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.ca_cert_file, NULL, NULL, applyTlsCfg),
|
|
createStringConfig("tls-ca-cert-dir", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.ca_cert_dir, NULL, NULL, applyTlsCfg),
|
|
createStringConfig("tls-protocols", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.protocols, NULL, NULL, applyTlsCfg),
|
|
createStringConfig("tls-ciphers", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.ciphers, NULL, NULL, applyTlsCfg),
|
|
createStringConfig("tls-ciphersuites", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.ciphersuites, NULL, NULL, applyTlsCfg),
|
|
#endif
|
|
|
|
/* Special configs */
|
|
createSpecialConfig("dir", NULL, MODIFIABLE_CONFIG | PROTECTED_CONFIG | DENY_LOADING_CONFIG, setConfigDirOption, getConfigDirOption, rewriteConfigDirOption, NULL),
|
|
createSpecialConfig("save", NULL, MODIFIABLE_CONFIG | MULTI_ARG_CONFIG, setConfigSaveOption, getConfigSaveOption, rewriteConfigSaveOption, NULL),
|
|
createSpecialConfig("client-output-buffer-limit", NULL, MODIFIABLE_CONFIG | MULTI_ARG_CONFIG, setConfigClientOutputBufferLimitOption, getConfigClientOutputBufferLimitOption, rewriteConfigClientOutputBufferLimitOption, NULL),
|
|
createSpecialConfig("oom-score-adj-values", NULL, MODIFIABLE_CONFIG | MULTI_ARG_CONFIG, setConfigOOMScoreAdjValuesOption, getConfigOOMScoreAdjValuesOption, rewriteConfigOOMScoreAdjValuesOption, updateOOMScoreAdj),
|
|
createSpecialConfig("notify-keyspace-events", NULL, MODIFIABLE_CONFIG, setConfigNotifyKeyspaceEventsOption, getConfigNotifyKeyspaceEventsOption, rewriteConfigNotifyKeyspaceEventsOption, NULL),
|
|
createSpecialConfig("bind", NULL, MODIFIABLE_CONFIG | MULTI_ARG_CONFIG, setConfigBindOption, getConfigBindOption, rewriteConfigBindOption, applyBind),
|
|
createSpecialConfig("replicaof", "slaveof", IMMUTABLE_CONFIG | MULTI_ARG_CONFIG, setConfigReplicaOfOption, getConfigReplicaOfOption, rewriteConfigReplicaOfOption, NULL),
|
|
createSpecialConfig("latency-tracking-info-percentiles", NULL, MODIFIABLE_CONFIG | MULTI_ARG_CONFIG, setConfigLatencyTrackingInfoPercentilesOutputOption, getConfigLatencyTrackingInfoPercentilesOutputOption, rewriteConfigLatencyTrackingInfoPercentilesOutputOption, NULL),
|
|
|
|
/* NULL Terminator, this is dropped when we convert to the runtime array. */
|
|
{NULL}
|
|
};
|
|
|
|
/* Create a new config by copying the passed in config. Returns 1 on success
|
|
* or 0 when their was already a config with the same name.. */
|
|
int registerConfigValue(const char *name, const standardConfig *config, int alias) {
|
|
standardConfig *new = zmalloc(sizeof(standardConfig));
|
|
memcpy(new, config, sizeof(standardConfig));
|
|
if (alias) {
|
|
new->flags |= ALIAS_CONFIG;
|
|
new->name = config->alias;
|
|
new->alias = config->name;
|
|
}
|
|
|
|
return dictAdd(configs, sdsnew(name), new) == DICT_OK;
|
|
}
|
|
|
|
/* Initialize configs to their default values and create and populate the
|
|
* runtime configuration dictionary. */
|
|
void initConfigValues() {
|
|
configs = dictCreate(&sdsHashDictType);
|
|
dictExpand(configs, sizeof(static_configs) / sizeof(standardConfig));
|
|
for (standardConfig *config = static_configs; config->name != NULL; config++) {
|
|
if (config->interface.init) config->interface.init(config);
|
|
/* Add the primary config to the dictionary. */
|
|
int ret = registerConfigValue(config->name, config, 0);
|
|
serverAssert(ret);
|
|
|
|
/* Aliases are the same as their primary counter parts, but they
|
|
* also have a flag indicating they are the alias. */
|
|
if (config->alias) {
|
|
int ret = registerConfigValue(config->alias, config, ALIAS_CONFIG);
|
|
serverAssert(ret);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Remove a config by name from the configs dict. */
|
|
void removeConfig(sds name) {
|
|
standardConfig *config = lookupConfig(name);
|
|
if (!config) return;
|
|
if (config->flags & MODULE_CONFIG) {
|
|
sdsfree((sds) config->name);
|
|
if (config->type == ENUM_CONFIG) {
|
|
configEnum *enumNode = config->data.enumd.enum_value;
|
|
while(enumNode->name != NULL) {
|
|
zfree(enumNode->name);
|
|
enumNode++;
|
|
}
|
|
zfree(config->data.enumd.enum_value);
|
|
} else if (config->type == SDS_CONFIG) {
|
|
if (config->data.sds.default_value) sdsfree((sds)config->data.sds.default_value);
|
|
}
|
|
}
|
|
dictDelete(configs, name);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Module Config
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
/* Create a bool/string/enum/numeric standardConfig for a module config in the configs dictionary */
|
|
void addModuleBoolConfig(const char *module_name, const char *name, int flags, void *privdata, int default_val) {
|
|
sds config_name = sdscatfmt(sdsempty(), "%s.%s", module_name, name);
|
|
int config_dummy_address;
|
|
standardConfig module_config = createBoolConfig(config_name, NULL, flags | MODULE_CONFIG, config_dummy_address, default_val, NULL, NULL);
|
|
module_config.data.yesno.config = NULL;
|
|
module_config.privdata = privdata;
|
|
registerConfigValue(config_name, &module_config, 0);
|
|
}
|
|
|
|
void addModuleStringConfig(const char *module_name, const char *name, int flags, void *privdata, sds default_val) {
|
|
sds config_name = sdscatfmt(sdsempty(), "%s.%s", module_name, name);
|
|
sds config_dummy_address;
|
|
standardConfig module_config = createSDSConfig(config_name, NULL, flags | MODULE_CONFIG, 0, config_dummy_address, default_val, NULL, NULL);
|
|
module_config.data.sds.config = NULL;
|
|
module_config.privdata = privdata;
|
|
registerConfigValue(config_name, &module_config, 0);
|
|
}
|
|
|
|
void addModuleEnumConfig(const char *module_name, const char *name, int flags, void *privdata, int default_val, configEnum *enum_vals) {
|
|
sds config_name = sdscatfmt(sdsempty(), "%s.%s", module_name, name);
|
|
int config_dummy_address;
|
|
standardConfig module_config = createEnumConfig(config_name, NULL, flags | MODULE_CONFIG, enum_vals, config_dummy_address, default_val, NULL, NULL);
|
|
module_config.data.enumd.config = NULL;
|
|
module_config.privdata = privdata;
|
|
registerConfigValue(config_name, &module_config, 0);
|
|
}
|
|
|
|
void addModuleNumericConfig(const char *module_name, const char *name, int flags, void *privdata, long long default_val, int conf_flags, long long lower, long long upper) {
|
|
sds config_name = sdscatfmt(sdsempty(), "%s.%s", module_name, name);
|
|
long long config_dummy_address;
|
|
standardConfig module_config = createLongLongConfig(config_name, NULL, flags | MODULE_CONFIG, lower, upper, config_dummy_address, default_val, conf_flags, NULL, NULL);
|
|
module_config.data.numeric.config.ll = NULL;
|
|
module_config.privdata = privdata;
|
|
registerConfigValue(config_name, &module_config, 0);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* CONFIG HELP
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
void configHelpCommand(client *c) {
|
|
const char *help[] = {
|
|
"GET <pattern>",
|
|
" Return parameters matching the glob-like <pattern> and their values.",
|
|
"SET <directive> <value>",
|
|
" Set the configuration <directive> to <value>.",
|
|
"RESETSTAT",
|
|
" Reset statistics reported by the INFO command.",
|
|
"REWRITE",
|
|
" Rewrite the configuration file.",
|
|
NULL
|
|
};
|
|
|
|
addReplyHelp(c, help);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* CONFIG RESETSTAT
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
void configResetStatCommand(client *c) {
|
|
resetServerStats();
|
|
resetCommandTableStats(server.commands);
|
|
resetErrorTableStats();
|
|
addReply(c,shared.ok);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* CONFIG REWRITE
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
void configRewriteCommand(client *c) {
|
|
if (server.configfile == NULL) {
|
|
addReplyError(c,"The server is running without a config file");
|
|
return;
|
|
}
|
|
if (rewriteConfig(server.configfile, 0) == -1) {
|
|
/* save errno in case of being tainted. */
|
|
int err = errno;
|
|
serverLog(LL_WARNING,"CONFIG REWRITE failed: %s", strerror(err));
|
|
addReplyErrorFormat(c,"Rewriting config file: %s", strerror(err));
|
|
} else {
|
|
serverLog(LL_WARNING,"CONFIG REWRITE executed with success.");
|
|
addReply(c,shared.ok);
|
|
}
|
|
}
|