2647 lines
109 KiB
C
2647 lines
109 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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/*-----------------------------------------------------------------------------
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* Config file name-value maps.
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*----------------------------------------------------------------------------*/
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typedef struct configEnum {
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const char *name;
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const int val;
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} configEnum;
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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 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", USER_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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/* 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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* int update_fn(val, prev, err)
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* This function is called only for CONFIG SET command (not at config file parsing)
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* It is called after the actual config is applied,
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* Return 1 for success, and 0 for failure.
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* Optionally set err to a static error string.
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* On failure the config change will be reverted.
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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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const 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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int (*update_fn)(int val, int prev, const char **err); /* Optional function to apply new value at runtime (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 (*update_fn)(char* val, char* prev, const char **err); /* Optional function to apply new value at runtime (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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const 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 (*update_fn)(sds val, sds prev, const char **err); /* Optional function to apply new value at runtime (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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const 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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int (*update_fn)(int val, int prev, const char **err); /* Optional function to apply new value at runtime (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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int is_memory; /* Indicates if this value can be loaded as a memory value */
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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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const 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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int (*update_fn)(long long val, long long prev, const char **err); /* Optional function to apply new value at runtime (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 typeInterface {
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/* Called on server start, to init the server with default value */
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void (*init)(typeData data);
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/* Called on server startup and CONFIG SET, returns 1 on success, 0 on error
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* and can set a verbose err string, update is true when called from CONFIG SET */
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int (*set)(typeData data, sds value, int update, const char **err);
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/* Called on CONFIG GET, required to add output to the client */
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void (*get)(client *c, typeData data);
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/* Called on CONFIG REWRITE, required to rewrite the config state */
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void (*rewrite)(typeData data, const char *name, struct rewriteConfigState *state);
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} typeInterface;
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typedef 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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const 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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} standardConfig;
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#define MODIFIABLE_CONFIG 0 /* This is the implied default for a standard
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* config, which is mutable. */
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#define IMMUTABLE_CONFIG (1ULL<<0) /* Can this value only be set at startup? */
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#define SENSITIVE_CONFIG (1ULL<<1) /* Does this value contain sensitive information */
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standardConfig configs[];
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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, char *name) {
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while(ce->name != NULL) {
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if (!strcasecmp(ce->name,name)) return ce->val;
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ce++;
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}
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return INT_MIN;
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}
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/* Get enum name from value. If no match is found NULL is returned. */
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const char *configEnumGetName(configEnum *ce, int val) {
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while(ce->name != NULL) {
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if (ce->val == val) return ce->name;
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ce++;
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}
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return NULL;
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}
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/* Wrapper for configEnumGetName() returning "unknown" instead of NULL if
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* there is no match. */
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const char *configEnumGetNameOrUnknown(configEnum *ce, int val) {
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const char *name = configEnumGetName(ce,val);
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return name ? name : "unknown";
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}
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/* Used for INFO generation. */
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const char *evictPolicyToString(void) {
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return configEnumGetNameOrUnknown(maxmemory_policy_enum,server.maxmemory_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 CONFIG_OOM_COUNT sds strings, validate and populate
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* server.oom_score_adj_values if valid.
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*/
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static int updateOOMScoreAdjValues(sds *args, const char **err, int apply) {
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int i;
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int values[CONFIG_OOM_COUNT];
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for (i = 0; i < CONFIG_OOM_COUNT; i++) {
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char *eptr;
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long long val = strtoll(args[i], &eptr, 10);
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if (*eptr != '\0' || val < -2000 || val > 2000) {
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if (err) *err = "Invalid oom-score-adj-values, elements must be between -2000 and 2000.";
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return C_ERR;
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}
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values[i] = val;
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}
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/* Verify that the values make sense. If they don't omit a warning but
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* keep the configuration, which may still be valid for privileged processes.
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*/
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if (values[CONFIG_OOM_REPLICA] < values[CONFIG_OOM_MASTER] ||
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values[CONFIG_OOM_BGCHILD] < values[CONFIG_OOM_REPLICA]) {
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serverLog(LOG_WARNING,
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"The oom-score-adj-values configuration may not work for non-privileged processes! "
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"Please consult the documentation.");
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}
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/* Store values, retain previous config for rollback in case we fail. */
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int old_values[CONFIG_OOM_COUNT];
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for (i = 0; i < CONFIG_OOM_COUNT; i++) {
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old_values[i] = server.oom_score_adj_values[i];
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server.oom_score_adj_values[i] = values[i];
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}
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/* When parsing the config file, we want to apply only when all is done. */
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if (!apply)
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return C_OK;
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/* Update */
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if (setOOMScoreAdj(-1) == C_ERR) {
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/* Roll back */
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for (i = 0; i < CONFIG_OOM_COUNT; i++)
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server.oom_score_adj_values[i] = old_values[i];
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if (err)
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*err = "Failed to apply oom-score-adj-values configuration, check server logs.";
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return C_ERR;
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}
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return C_OK;
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}
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void initConfigValues() {
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for (standardConfig *config = configs; config->name != NULL; config++) {
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config->interface.init(config->data);
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}
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}
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void loadServerConfigFromString(char *config) {
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const char *err = NULL;
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int linenum = 0, totlines, i;
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int slaveof_linenum = 0;
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sds *lines;
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int save_loaded = 0;
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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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|
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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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int match = 0;
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for (standardConfig *config = configs; config->name != NULL; config++) {
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if ((!strcasecmp(argv[0],config->name) ||
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(config->alias && !strcasecmp(argv[0],config->alias))))
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{
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if (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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if (!config->interface.set(config->data, argv[1], 0, &err)) {
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goto loaderr;
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}
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match = 1;
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break;
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}
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}
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if (match) {
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sdsfreesplitres(argv,argc);
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continue;
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}
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/* Execute config directives */
|
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if (!strcasecmp(argv[0],"bind") && argc >= 2) {
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int j, addresses = argc-1;
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if (addresses > CONFIG_BINDADDR_MAX) {
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err = "Too many bind addresses specified"; goto loaderr;
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}
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/* Free old bind addresses */
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for (j = 0; j < server.bindaddr_count; j++) {
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zfree(server.bindaddr[j]);
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}
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for (j = 0; j < addresses; j++)
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server.bindaddr[j] = zstrdup(argv[j+1]);
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server.bindaddr_count = addresses;
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} else if (!strcasecmp(argv[0],"unixsocketperm") && argc == 2) {
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errno = 0;
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server.unixsocketperm = (mode_t)strtol(argv[1], NULL, 8);
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if (errno || server.unixsocketperm > 0777) {
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err = "Invalid socket file permissions"; goto loaderr;
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}
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} else if (!strcasecmp(argv[0],"save")) {
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/* We don't reset save params before loading, because if they're not part
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* of the file the defaults should be used.
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*/
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if (!save_loaded) {
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save_loaded = 1;
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resetServerSaveParams();
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}
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|
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if (argc == 3) {
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int seconds = atoi(argv[1]);
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int changes = atoi(argv[2]);
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if (seconds < 1 || changes < 0) {
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err = "Invalid save parameters"; goto loaderr;
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}
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appendServerSaveParams(seconds,changes);
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} else if (argc == 2 && !strcasecmp(argv[1],"")) {
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resetServerSaveParams();
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}
|
|
} else if (!strcasecmp(argv[0],"dir") && argc == 2) {
|
|
if (chdir(argv[1]) == -1) {
|
|
serverLog(LL_WARNING,"Can't chdir to '%s': %s",
|
|
argv[1], strerror(errno));
|
|
exit(1);
|
|
}
|
|
} else if (!strcasecmp(argv[0],"logfile") && argc == 2) {
|
|
FILE *logfp;
|
|
|
|
zfree(server.logfile);
|
|
server.logfile = zstrdup(argv[1]);
|
|
if (server.logfile[0] != '\0') {
|
|
/* Test if we are able to open the file. The server will not
|
|
* be able to abort just for this problem later... */
|
|
logfp = fopen(server.logfile,"a");
|
|
if (logfp == NULL) {
|
|
err = sdscatprintf(sdsempty(),
|
|
"Can't open the log file: %s", strerror(errno));
|
|
goto loaderr;
|
|
}
|
|
fclose(logfp);
|
|
}
|
|
} else if (!strcasecmp(argv[0],"include") && argc == 2) {
|
|
loadServerConfig(argv[1], 0, NULL);
|
|
} else if ((!strcasecmp(argv[0],"slaveof") ||
|
|
!strcasecmp(argv[0],"replicaof")) && argc == 3) {
|
|
slaveof_linenum = linenum;
|
|
sdsfree(server.masterhost);
|
|
if (!strcasecmp(argv[1], "no") && !strcasecmp(argv[2], "one")) {
|
|
server.masterhost = NULL;
|
|
continue;
|
|
}
|
|
server.masterhost = sdsnew(argv[1]);
|
|
char *ptr;
|
|
server.masterport = strtol(argv[2], &ptr, 10);
|
|
if (server.masterport < 0 || server.masterport > 65535 || *ptr != '\0') {
|
|
err = "Invalid master port"; goto loaderr;
|
|
}
|
|
server.repl_state = REPL_STATE_CONNECT;
|
|
} else if (!strcasecmp(argv[0],"list-max-ziplist-entries") && argc == 2){
|
|
/* DEAD OPTION */
|
|
} else if (!strcasecmp(argv[0],"list-max-ziplist-value") && argc == 2) {
|
|
/* DEAD OPTION */
|
|
} else if (!strcasecmp(argv[0],"rename-command") && argc == 3) {
|
|
struct redisCommand *cmd = lookupCommand(argv[1]);
|
|
int retval;
|
|
|
|
if (!cmd) {
|
|
err = "No such command in rename-command";
|
|
goto loaderr;
|
|
}
|
|
|
|
/* If the target command name is the empty string we just
|
|
* remove it from the command table. */
|
|
retval = dictDelete(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],"cluster-config-file") && argc == 2) {
|
|
zfree(server.cluster_configfile);
|
|
server.cluster_configfile = zstrdup(argv[1]);
|
|
} else if (!strcasecmp(argv[0],"client-output-buffer-limit") &&
|
|
argc == 5)
|
|
{
|
|
int class = getClientTypeByName(argv[1]);
|
|
unsigned long long hard, soft;
|
|
int soft_seconds;
|
|
|
|
if (class == -1 || class == CLIENT_TYPE_MASTER) {
|
|
err = "Unrecognized client limit class: the user specified "
|
|
"an invalid one, or 'master' which has no buffer limits.";
|
|
goto loaderr;
|
|
}
|
|
hard = memtoll(argv[2],NULL);
|
|
soft = memtoll(argv[3],NULL);
|
|
soft_seconds = atoi(argv[4]);
|
|
if (soft_seconds < 0) {
|
|
err = "Negative number of seconds in soft limit is invalid";
|
|
goto loaderr;
|
|
}
|
|
server.client_obuf_limits[class].hard_limit_bytes = hard;
|
|
server.client_obuf_limits[class].soft_limit_bytes = soft;
|
|
server.client_obuf_limits[class].soft_limit_seconds = soft_seconds;
|
|
} else if (!strcasecmp(argv[0],"oom-score-adj-values") && argc == 1 + CONFIG_OOM_COUNT) {
|
|
if (updateOOMScoreAdjValues(&argv[1], &err, 0) == C_ERR) goto loaderr;
|
|
} else if (!strcasecmp(argv[0],"notify-keyspace-events") && argc == 2) {
|
|
int flags = keyspaceEventsStringToFlags(argv[1]);
|
|
|
|
if (flags == -1) {
|
|
err = "Invalid event class character. Use 'Ag$lshzxeKEtmd'.";
|
|
goto loaderr;
|
|
}
|
|
server.notify_keyspace_events = flags;
|
|
} else if (!strcasecmp(argv[0],"user") && argc >= 2) {
|
|
int argc_err;
|
|
if (ACLAppendUserForLoading(argv,argc,&argc_err) == C_ERR) {
|
|
char buf[1024];
|
|
const char *errmsg = ACLSetUserStringError();
|
|
snprintf(buf,sizeof(buf),"Error in user declaration '%s': %s",
|
|
argv[argc_err],errmsg);
|
|
err = buf;
|
|
goto loaderr;
|
|
}
|
|
} else if (!strcasecmp(argv[0],"loadmodule") && argc >= 2) {
|
|
queueLoadModule(argv[1],&argv[2],argc-2);
|
|
} else if (!strcasecmp(argv[0],"sentinel")) {
|
|
/* argc == 1 is handled by main() as we need to enter the sentinel
|
|
* mode ASAP. */
|
|
if (argc != 1) {
|
|
if (!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);
|
|
}
|
|
|
|
/* Sanity checks. */
|
|
if (server.cluster_enabled && server.masterhost) {
|
|
linenum = slaveof_linenum;
|
|
i = linenum-1;
|
|
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);
|
|
return;
|
|
|
|
loaderr:
|
|
fprintf(stderr, "\n*** FATAL CONFIG FILE ERROR (Redis %s) ***\n",
|
|
REDIS_VERSION);
|
|
fprintf(stderr, "Reading the configuration file, at line %d\n", linenum);
|
|
fprintf(stderr, ">>> '%s'\n", lines[i]);
|
|
fprintf(stderr, "%s\n", err);
|
|
exit(1);
|
|
}
|
|
|
|
/* Load the server configuration from the specified filename.
|
|
* The function appends the additional configuration directives stored
|
|
* in the 'options' string to the config file before loading.
|
|
*
|
|
* Both filename and options can be NULL, in such a case are considered
|
|
* empty. This way loadServerConfig can be used to just load a file or
|
|
* just load a string. */
|
|
void loadServerConfig(char *filename, char config_from_stdin, char *options) {
|
|
sds config = sdsempty();
|
|
char buf[CONFIG_MAX_LINE+1];
|
|
FILE *fp;
|
|
|
|
/* Load the file content */
|
|
if (filename) {
|
|
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_MAX_LINE+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_MAX_LINE+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);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* CONFIG SET implementation
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
#define config_set_bool_field(_name,_var) \
|
|
} else if (!strcasecmp(c->argv[2]->ptr,_name)) { \
|
|
int yn = yesnotoi(o->ptr); \
|
|
if (yn == -1) goto badfmt; \
|
|
_var = yn;
|
|
|
|
#define config_set_numerical_field(_name,_var,min,max) \
|
|
} else if (!strcasecmp(c->argv[2]->ptr,_name)) { \
|
|
if (getLongLongFromObject(o,&ll) == C_ERR) goto badfmt; \
|
|
if (min != LLONG_MIN && ll < min) goto badfmt; \
|
|
if (max != LLONG_MAX && ll > max) goto badfmt; \
|
|
_var = ll;
|
|
|
|
#define config_set_memory_field(_name,_var) \
|
|
} else if (!strcasecmp(c->argv[2]->ptr,_name)) { \
|
|
ll = memtoll(o->ptr,&err); \
|
|
if (err || ll < 0) goto badfmt; \
|
|
_var = ll;
|
|
|
|
#define config_set_special_field(_name) \
|
|
} else if (!strcasecmp(c->argv[2]->ptr,_name)) {
|
|
|
|
#define config_set_special_field_with_alias(_name1,_name2) \
|
|
} else if (!strcasecmp(c->argv[2]->ptr,_name1) || \
|
|
!strcasecmp(c->argv[2]->ptr,_name2)) {
|
|
|
|
#define config_set_else } else
|
|
|
|
void configSetCommand(client *c) {
|
|
robj *o;
|
|
long long ll;
|
|
int err;
|
|
const char *errstr = NULL;
|
|
serverAssertWithInfo(c,c->argv[2],sdsEncodedObject(c->argv[2]));
|
|
serverAssertWithInfo(c,c->argv[3],sdsEncodedObject(c->argv[3]));
|
|
o = c->argv[3];
|
|
|
|
/* Iterate the configs that are standard */
|
|
for (standardConfig *config = configs; config->name != NULL; config++) {
|
|
if (!(config->flags & IMMUTABLE_CONFIG) &&
|
|
(!strcasecmp(c->argv[2]->ptr,config->name) ||
|
|
(config->alias && !strcasecmp(c->argv[2]->ptr,config->alias))))
|
|
{
|
|
if (config->flags & SENSITIVE_CONFIG) {
|
|
redactClientCommandArgument(c,3);
|
|
}
|
|
if (!config->interface.set(config->data,o->ptr,1,&errstr)) {
|
|
goto badfmt;
|
|
}
|
|
addReply(c,shared.ok);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (0) { /* this starts the config_set macros else-if chain. */
|
|
|
|
/* Special fields that can't be handled with general macros. */
|
|
config_set_special_field("bind") {
|
|
int vlen;
|
|
sds *v = sdssplitlen(o->ptr,sdslen(o->ptr)," ",1,&vlen);
|
|
|
|
if (vlen < 1 || vlen > CONFIG_BINDADDR_MAX) {
|
|
addReplyError(c, "Too many bind addresses specified.");
|
|
sdsfreesplitres(v, vlen);
|
|
return;
|
|
}
|
|
|
|
if (changeBindAddr(v, vlen) == C_ERR) {
|
|
addReplyError(c, "Failed to bind to specified addresses.");
|
|
sdsfreesplitres(v, vlen);
|
|
return;
|
|
}
|
|
sdsfreesplitres(v, vlen);
|
|
} config_set_special_field("save") {
|
|
int vlen, j;
|
|
sds *v = sdssplitlen(o->ptr,sdslen(o->ptr)," ",1,&vlen);
|
|
|
|
/* Perform sanity check before setting the new config:
|
|
* - Even number of args
|
|
* - Seconds >= 1, changes >= 0 */
|
|
if (vlen & 1) {
|
|
sdsfreesplitres(v,vlen);
|
|
goto badfmt;
|
|
}
|
|
for (j = 0; j < vlen; j++) {
|
|
char *eptr;
|
|
long val;
|
|
|
|
val = strtoll(v[j], &eptr, 10);
|
|
if (eptr[0] != '\0' ||
|
|
((j & 1) == 0 && val < 1) ||
|
|
((j & 1) == 1 && val < 0)) {
|
|
sdsfreesplitres(v,vlen);
|
|
goto badfmt;
|
|
}
|
|
}
|
|
/* Finally set the new config */
|
|
resetServerSaveParams();
|
|
for (j = 0; j < vlen; j += 2) {
|
|
time_t seconds;
|
|
int changes;
|
|
|
|
seconds = strtoll(v[j],NULL,10);
|
|
changes = strtoll(v[j+1],NULL,10);
|
|
appendServerSaveParams(seconds, changes);
|
|
}
|
|
sdsfreesplitres(v,vlen);
|
|
} config_set_special_field("dir") {
|
|
if (chdir((char*)o->ptr) == -1) {
|
|
addReplyErrorFormat(c,"Changing directory: %s", strerror(errno));
|
|
return;
|
|
}
|
|
} config_set_special_field("client-output-buffer-limit") {
|
|
int vlen, j;
|
|
sds *v = sdssplitlen(o->ptr,sdslen(o->ptr)," ",1,&vlen);
|
|
|
|
/* We need a multiple of 4: <class> <hard> <soft> <soft_seconds> */
|
|
if (vlen % 4) {
|
|
sdsfreesplitres(v,vlen);
|
|
goto badfmt;
|
|
}
|
|
|
|
/* Sanity check of single arguments, so that we either refuse the
|
|
* whole configuration string or accept it all, even if a single
|
|
* error in a single client class is present. */
|
|
for (j = 0; j < vlen; j++) {
|
|
long val;
|
|
|
|
if ((j % 4) == 0) {
|
|
int class = getClientTypeByName(v[j]);
|
|
if (class == -1 || class == CLIENT_TYPE_MASTER) {
|
|
sdsfreesplitres(v,vlen);
|
|
goto badfmt;
|
|
}
|
|
} else {
|
|
val = memtoll(v[j], &err);
|
|
if (err || val < 0) {
|
|
sdsfreesplitres(v,vlen);
|
|
goto badfmt;
|
|
}
|
|
}
|
|
}
|
|
/* Finally set the new config */
|
|
for (j = 0; j < vlen; j += 4) {
|
|
int class;
|
|
unsigned long long hard, soft;
|
|
int soft_seconds;
|
|
|
|
class = getClientTypeByName(v[j]);
|
|
hard = memtoll(v[j+1],NULL);
|
|
soft = memtoll(v[j+2],NULL);
|
|
soft_seconds = strtoll(v[j+3],NULL,10);
|
|
|
|
server.client_obuf_limits[class].hard_limit_bytes = hard;
|
|
server.client_obuf_limits[class].soft_limit_bytes = soft;
|
|
server.client_obuf_limits[class].soft_limit_seconds = soft_seconds;
|
|
}
|
|
sdsfreesplitres(v,vlen);
|
|
} config_set_special_field("oom-score-adj-values") {
|
|
int vlen;
|
|
int success = 1;
|
|
|
|
sds *v = sdssplitlen(o->ptr, sdslen(o->ptr), " ", 1, &vlen);
|
|
if (vlen != CONFIG_OOM_COUNT || updateOOMScoreAdjValues(v, &errstr, 1) == C_ERR)
|
|
success = 0;
|
|
|
|
sdsfreesplitres(v, vlen);
|
|
if (!success)
|
|
goto badfmt;
|
|
} config_set_special_field("notify-keyspace-events") {
|
|
int flags = keyspaceEventsStringToFlags(o->ptr);
|
|
|
|
if (flags == -1) goto badfmt;
|
|
server.notify_keyspace_events = flags;
|
|
/* Numerical fields.
|
|
* config_set_numerical_field(name,var,min,max) */
|
|
} config_set_numerical_field(
|
|
"watchdog-period",ll,0,INT_MAX) {
|
|
if (ll)
|
|
enableWatchdog(ll);
|
|
else
|
|
disableWatchdog();
|
|
/* Everything else is an error... */
|
|
} config_set_else {
|
|
addReplyErrorFormat(c,"Unsupported CONFIG parameter: %s",
|
|
(char*)c->argv[2]->ptr);
|
|
return;
|
|
}
|
|
|
|
/* On success we just return a generic OK for all the options. */
|
|
addReply(c,shared.ok);
|
|
return;
|
|
|
|
badfmt: /* Bad format errors */
|
|
if (errstr) {
|
|
addReplyErrorFormat(c,"Invalid argument '%s' for CONFIG SET '%s' - %s",
|
|
(char*)o->ptr,
|
|
(char*)c->argv[2]->ptr,
|
|
errstr);
|
|
} else {
|
|
addReplyErrorFormat(c,"Invalid argument '%s' for CONFIG SET '%s'",
|
|
(char*)o->ptr,
|
|
(char*)c->argv[2]->ptr);
|
|
}
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* CONFIG GET implementation
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
#define config_get_string_field(_name,_var) do { \
|
|
if (stringmatch(pattern,_name,1)) { \
|
|
addReplyBulkCString(c,_name); \
|
|
addReplyBulkCString(c,_var ? _var : ""); \
|
|
matches++; \
|
|
} \
|
|
} while(0)
|
|
|
|
#define config_get_bool_field(_name,_var) do { \
|
|
if (stringmatch(pattern,_name,1)) { \
|
|
addReplyBulkCString(c,_name); \
|
|
addReplyBulkCString(c,_var ? "yes" : "no"); \
|
|
matches++; \
|
|
} \
|
|
} while(0)
|
|
|
|
#define config_get_numerical_field(_name,_var) do { \
|
|
if (stringmatch(pattern,_name,1)) { \
|
|
ll2string(buf,sizeof(buf),_var); \
|
|
addReplyBulkCString(c,_name); \
|
|
addReplyBulkCString(c,buf); \
|
|
matches++; \
|
|
} \
|
|
} while(0)
|
|
|
|
void configGetCommand(client *c) {
|
|
robj *o = c->argv[2];
|
|
void *replylen = addReplyDeferredLen(c);
|
|
char *pattern = o->ptr;
|
|
char buf[128];
|
|
int matches = 0;
|
|
serverAssertWithInfo(c,o,sdsEncodedObject(o));
|
|
|
|
/* Iterate the configs that are standard */
|
|
for (standardConfig *config = configs; config->name != NULL; config++) {
|
|
if (stringmatch(pattern,config->name,1)) {
|
|
addReplyBulkCString(c,config->name);
|
|
config->interface.get(c,config->data);
|
|
matches++;
|
|
}
|
|
if (config->alias && stringmatch(pattern,config->alias,1)) {
|
|
addReplyBulkCString(c,config->alias);
|
|
config->interface.get(c,config->data);
|
|
matches++;
|
|
}
|
|
}
|
|
|
|
/* String values */
|
|
config_get_string_field("logfile",server.logfile);
|
|
|
|
/* Numerical values */
|
|
config_get_numerical_field("watchdog-period",server.watchdog_period);
|
|
|
|
/* Everything we can't handle with macros follows. */
|
|
|
|
if (stringmatch(pattern,"dir",1)) {
|
|
char buf[1024];
|
|
|
|
if (getcwd(buf,sizeof(buf)) == NULL)
|
|
buf[0] = '\0';
|
|
|
|
addReplyBulkCString(c,"dir");
|
|
addReplyBulkCString(c,buf);
|
|
matches++;
|
|
}
|
|
if (stringmatch(pattern,"save",1)) {
|
|
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);
|
|
}
|
|
addReplyBulkCString(c,"save");
|
|
addReplyBulkCString(c,buf);
|
|
sdsfree(buf);
|
|
matches++;
|
|
}
|
|
if (stringmatch(pattern,"client-output-buffer-limit",1)) {
|
|
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);
|
|
}
|
|
addReplyBulkCString(c,"client-output-buffer-limit");
|
|
addReplyBulkCString(c,buf);
|
|
sdsfree(buf);
|
|
matches++;
|
|
}
|
|
if (stringmatch(pattern,"unixsocketperm",1)) {
|
|
char buf[32];
|
|
snprintf(buf,sizeof(buf),"%lo",(unsigned long) server.unixsocketperm);
|
|
addReplyBulkCString(c,"unixsocketperm");
|
|
addReplyBulkCString(c,buf);
|
|
matches++;
|
|
}
|
|
if (stringmatch(pattern,"slaveof",1) ||
|
|
stringmatch(pattern,"replicaof",1))
|
|
{
|
|
char *optname = stringmatch(pattern,"slaveof",1) ?
|
|
"slaveof" : "replicaof";
|
|
char buf[256];
|
|
|
|
addReplyBulkCString(c,optname);
|
|
if (server.masterhost)
|
|
snprintf(buf,sizeof(buf),"%s %d",
|
|
server.masterhost, server.masterport);
|
|
else
|
|
buf[0] = '\0';
|
|
addReplyBulkCString(c,buf);
|
|
matches++;
|
|
}
|
|
if (stringmatch(pattern,"notify-keyspace-events",1)) {
|
|
sds flags = keyspaceEventsFlagsToString(server.notify_keyspace_events);
|
|
|
|
addReplyBulkCString(c,"notify-keyspace-events");
|
|
addReplyBulkSds(c,flags);
|
|
matches++;
|
|
}
|
|
if (stringmatch(pattern,"bind",1)) {
|
|
sds aux = sdsjoin(server.bindaddr,server.bindaddr_count," ");
|
|
|
|
addReplyBulkCString(c,"bind");
|
|
addReplyBulkCString(c,aux);
|
|
sdsfree(aux);
|
|
matches++;
|
|
}
|
|
|
|
if (stringmatch(pattern,"oom-score-adj-values",0)) {
|
|
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);
|
|
}
|
|
|
|
addReplyBulkCString(c,"oom-score-adj-values");
|
|
addReplyBulkCString(c,buf);
|
|
sdsfree(buf);
|
|
matches++;
|
|
}
|
|
|
|
setDeferredMapLen(c,replylen,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). */
|
|
uint64_t dictSdsCaseHash(const void *key);
|
|
int dictSdsKeyCaseCompare(void *privdata, const void *key1, const void *key2);
|
|
void dictSdsDestructor(void *privdata, void *val);
|
|
void dictListDestructor(void *privdata, 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 has_tail; /* True if we already added directives that were
|
|
not present in the original config file. */
|
|
int force_all; /* True if we want all keywords to be force
|
|
written. Currently only used for testing. */
|
|
};
|
|
|
|
/* 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;
|
|
|
|
char buf[CONFIG_MAX_LINE+1];
|
|
int linenum = -1;
|
|
struct rewriteConfigState *state = zmalloc(sizeof(*state));
|
|
state->option_to_line = dictCreate(&optionToLineDictType,NULL);
|
|
state->rewritten = dictCreate(&optionSetDictType,NULL);
|
|
state->numlines = 0;
|
|
state->lines = NULL;
|
|
state->has_tail = 0;
|
|
state->force_all = 0;
|
|
if (fp == NULL) return state;
|
|
|
|
/* Read the old file line by line, populate the state. */
|
|
while(fgets(buf,CONFIG_MAX_LINE+1,fp) != NULL) {
|
|
int argc;
|
|
sds *argv;
|
|
sds line = sdstrim(sdsnew(buf),"\r\n\t ");
|
|
|
|
linenum++; /* Zero based, so we init at -1 */
|
|
|
|
/* Handle comments and empty lines. */
|
|
if (line[0] == '#' || line[0] == '\0') {
|
|
if (!state->has_tail && !strcmp(line,REDIS_CONFIG_REWRITE_SIGNATURE))
|
|
state->has_tail = 1;
|
|
rewriteConfigAppendLine(state,line);
|
|
continue;
|
|
}
|
|
|
|
/* Not a comment, split into arguments. */
|
|
argv = sdssplitargs(line,&argc);
|
|
if (argv == NULL) {
|
|
/* Apparently the line is unparsable for some reason, for
|
|
* instance it may have unbalanced quotes. Load it as a
|
|
* comment. */
|
|
sds aux = sdsnew("# ??? ");
|
|
aux = sdscatsds(aux,line);
|
|
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);
|
|
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_all) {
|
|
/* 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->has_tail) {
|
|
rewriteConfigAppendLine(state,
|
|
sdsnew(REDIS_CONFIG_REWRITE_SIGNATURE));
|
|
state->has_tail = 1;
|
|
}
|
|
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 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 sds 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 && sdscmp(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, char *option, int value, int defvalue) {
|
|
int force = value != defvalue;
|
|
sds line = sdscatprintf(sdsempty(),"%s %o",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, configEnum *ce, int defval) {
|
|
sds line;
|
|
const char *name = configEnumGetNameOrUnknown(ce,value);
|
|
int force = value != defval;
|
|
|
|
line = sdscatprintf(sdsempty(),"%s %s",option,name);
|
|
rewriteConfigRewriteLine(state,option,line,force);
|
|
}
|
|
|
|
/* Rewrite the save option. */
|
|
void rewriteConfigSaveOption(struct rewriteConfigState *state) {
|
|
int j;
|
|
sds line;
|
|
|
|
/* In Sentinel mode we don't need to rewrite the save parameters */
|
|
if (server.sentinel_mode) {
|
|
rewriteConfigMarkAsProcessed(state,"save");
|
|
return;
|
|
}
|
|
|
|
/* Rewrite save parameters, or an empty 'save ""' line to avoid the
|
|
* defaults from being used.
|
|
*/
|
|
if (!server.saveparamslen) {
|
|
rewriteConfigRewriteLine(state,"save",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,"save",line,1);
|
|
}
|
|
}
|
|
|
|
/* Mark "save" as processed in case server.saveparamslen is zero. */
|
|
rewriteConfigMarkAsProcessed(state,"save");
|
|
}
|
|
|
|
/* 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(struct rewriteConfigState *state) {
|
|
char cwd[1024];
|
|
|
|
if (getcwd(cwd,sizeof(cwd)) == NULL) {
|
|
rewriteConfigMarkAsProcessed(state,"dir");
|
|
return; /* no rewrite on error. */
|
|
}
|
|
rewriteConfigStringOption(state,"dir",cwd,NULL);
|
|
}
|
|
|
|
/* Rewrite the slaveof option. */
|
|
void rewriteConfigSlaveofOption(struct rewriteConfigState *state, char *option) {
|
|
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,option);
|
|
return;
|
|
}
|
|
line = sdscatprintf(sdsempty(),"%s %s %d", option,
|
|
server.masterhost, server.masterport);
|
|
rewriteConfigRewriteLine(state,option,line,1);
|
|
}
|
|
|
|
/* Rewrite the notify-keyspace-events option. */
|
|
void rewriteConfigNotifykeyspaceeventsOption(struct rewriteConfigState *state) {
|
|
int force = server.notify_keyspace_events != 0;
|
|
char *option = "notify-keyspace-events";
|
|
sds line, flags;
|
|
|
|
flags = keyspaceEventsFlagsToString(server.notify_keyspace_events);
|
|
line = sdsnew(option);
|
|
line = sdscatlen(line, " ", 1);
|
|
line = sdscatrepr(line, flags, sdslen(flags));
|
|
sdsfree(flags);
|
|
rewriteConfigRewriteLine(state,option,line,force);
|
|
}
|
|
|
|
/* Rewrite the client-output-buffer-limit option. */
|
|
void rewriteConfigClientoutputbufferlimitOption(struct rewriteConfigState *state) {
|
|
int j;
|
|
char *option = "client-output-buffer-limit";
|
|
|
|
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",
|
|
option, typename, hard, soft,
|
|
(long) server.client_obuf_limits[j].soft_limit_seconds);
|
|
rewriteConfigRewriteLine(state,option,line,force);
|
|
}
|
|
}
|
|
|
|
/* Rewrite the oom-score-adj-values option. */
|
|
void rewriteConfigOOMScoreAdjValuesOption(struct rewriteConfigState *state) {
|
|
int force = 0;
|
|
int j;
|
|
char *option = "oom-score-adj-values";
|
|
sds line;
|
|
|
|
line = sdsnew(option);
|
|
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,option,line,force);
|
|
}
|
|
|
|
/* Rewrite the bind option. */
|
|
void rewriteConfigBindOption(struct rewriteConfigState *state) {
|
|
int force = 1;
|
|
sds line, addresses;
|
|
char *option = "bind";
|
|
|
|
/* Nothing to rewrite if we don't have bind addresses. */
|
|
if (server.bindaddr_count == 0) {
|
|
rewriteConfigMarkAsProcessed(state,option);
|
|
return;
|
|
}
|
|
|
|
/* Rewrite as bind <addr1> <addr2> ... <addrN> */
|
|
addresses = sdsjoin(server.bindaddr,server.bindaddr_count," ");
|
|
line = sdsnew(option);
|
|
line = sdscatlen(line, " ", 1);
|
|
line = sdscatsds(line, addresses);
|
|
sdsfree(addresses);
|
|
|
|
rewriteConfigRewriteLine(state,option,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;
|
|
}
|
|
|
|
/* 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);
|
|
}
|
|
|
|
/* 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 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_all 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_all) {
|
|
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_all) state->force_all = 1;
|
|
|
|
/* Step 2: rewrite every single option, replacing or appending it inside
|
|
* the rewrite state. */
|
|
|
|
/* Iterate the configs that are standard */
|
|
for (standardConfig *config = configs; config->name != NULL; config++) {
|
|
config->interface.rewrite(config->data, config->name, state);
|
|
}
|
|
|
|
rewriteConfigBindOption(state);
|
|
rewriteConfigOctalOption(state,"unixsocketperm",server.unixsocketperm,CONFIG_DEFAULT_UNIX_SOCKET_PERM);
|
|
rewriteConfigStringOption(state,"logfile",server.logfile,CONFIG_DEFAULT_LOGFILE);
|
|
rewriteConfigSaveOption(state);
|
|
rewriteConfigUserOption(state);
|
|
rewriteConfigDirOption(state);
|
|
rewriteConfigSlaveofOption(state,"replicaof");
|
|
rewriteConfigStringOption(state,"cluster-config-file",server.cluster_configfile,CONFIG_DEFAULT_CLUSTER_CONFIG_FILE);
|
|
rewriteConfigNotifykeyspaceeventsOption(state);
|
|
rewriteConfigClientoutputbufferlimitOption(state);
|
|
rewriteConfigOOMScoreAdjValuesOption(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) .interface = { \
|
|
.init = (initfn), \
|
|
.set = (setfn), \
|
|
.get = (getfn), \
|
|
.rewrite = (rewritefn) \
|
|
},
|
|
|
|
/* 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(typeData data) {
|
|
*data.yesno.config = data.yesno.default_value;
|
|
}
|
|
|
|
static int boolConfigSet(typeData data, sds value, int update, const char **err) {
|
|
int yn = yesnotoi(value);
|
|
if (yn == -1) {
|
|
*err = "argument must be 'yes' or 'no'";
|
|
return 0;
|
|
}
|
|
if (data.yesno.is_valid_fn && !data.yesno.is_valid_fn(yn, err))
|
|
return 0;
|
|
int prev = *(data.yesno.config);
|
|
*(data.yesno.config) = yn;
|
|
if (update && data.yesno.update_fn && !data.yesno.update_fn(yn, prev, err)) {
|
|
*(data.yesno.config) = prev;
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void boolConfigGet(client *c, typeData data) {
|
|
addReplyBulkCString(c, *data.yesno.config ? "yes" : "no");
|
|
}
|
|
|
|
static void boolConfigRewrite(typeData data, const char *name, struct rewriteConfigState *state) {
|
|
rewriteConfigYesNoOption(state, name,*(data.yesno.config), data.yesno.default_value);
|
|
}
|
|
|
|
#define createBoolConfig(name, alias, flags, config_addr, default, is_valid, update) { \
|
|
embedCommonConfig(name, alias, flags) \
|
|
embedConfigInterface(boolConfigInit, boolConfigSet, boolConfigGet, boolConfigRewrite) \
|
|
.data.yesno = { \
|
|
.config = &(config_addr), \
|
|
.default_value = (default), \
|
|
.is_valid_fn = (is_valid), \
|
|
.update_fn = (update), \
|
|
} \
|
|
}
|
|
|
|
/* String Configs */
|
|
static void stringConfigInit(typeData data) {
|
|
*data.string.config = (data.string.convert_empty_to_null && !data.string.default_value) ? NULL : zstrdup(data.string.default_value);
|
|
}
|
|
|
|
static int stringConfigSet(typeData data, sds value, int update, const char **err) {
|
|
if (data.string.is_valid_fn && !data.string.is_valid_fn(value, err))
|
|
return 0;
|
|
char *prev = *data.string.config;
|
|
*data.string.config = (data.string.convert_empty_to_null && !value[0]) ? NULL : zstrdup(value);
|
|
if (update && data.string.update_fn && !data.string.update_fn(*data.string.config, prev, err)) {
|
|
zfree(*data.string.config);
|
|
*data.string.config = prev;
|
|
return 0;
|
|
}
|
|
zfree(prev);
|
|
return 1;
|
|
}
|
|
|
|
static void stringConfigGet(client *c, typeData data) {
|
|
addReplyBulkCString(c, *data.string.config ? *data.string.config : "");
|
|
}
|
|
|
|
static void stringConfigRewrite(typeData data, const char *name, struct rewriteConfigState *state) {
|
|
rewriteConfigStringOption(state, name,*(data.string.config), data.string.default_value);
|
|
}
|
|
|
|
/* SDS Configs */
|
|
static void sdsConfigInit(typeData data) {
|
|
*data.sds.config = (data.sds.convert_empty_to_null && !data.sds.default_value) ? NULL: sdsnew(data.sds.default_value);
|
|
}
|
|
|
|
static int sdsConfigSet(typeData data, sds value, int update, const char **err) {
|
|
if (data.sds.is_valid_fn && !data.sds.is_valid_fn(value, err))
|
|
return 0;
|
|
sds prev = *data.sds.config;
|
|
*data.sds.config = (data.sds.convert_empty_to_null && (sdslen(value) == 0)) ? NULL : sdsdup(value);
|
|
if (update && data.sds.update_fn && !data.sds.update_fn(*data.sds.config, prev, err)) {
|
|
sdsfree(*data.sds.config);
|
|
*data.sds.config = prev;
|
|
return 0;
|
|
}
|
|
sdsfree(prev);
|
|
return 1;
|
|
}
|
|
|
|
static void sdsConfigGet(client *c, typeData data) {
|
|
if (*data.sds.config) {
|
|
addReplyBulkSds(c, sdsdup(*data.sds.config));
|
|
} else {
|
|
addReplyBulkCString(c, "");
|
|
}
|
|
}
|
|
|
|
static void sdsConfigRewrite(typeData data, const char *name, struct rewriteConfigState *state) {
|
|
rewriteConfigSdsOption(state, name, *(data.sds.config), data.sds.default_value ? sdsnew(data.sds.default_value) : NULL);
|
|
}
|
|
|
|
|
|
#define ALLOW_EMPTY_STRING 0
|
|
#define EMPTY_STRING_IS_NULL 1
|
|
|
|
#define createStringConfig(name, alias, flags, empty_to_null, config_addr, default, is_valid, update) { \
|
|
embedCommonConfig(name, alias, flags) \
|
|
embedConfigInterface(stringConfigInit, stringConfigSet, stringConfigGet, stringConfigRewrite) \
|
|
.data.string = { \
|
|
.config = &(config_addr), \
|
|
.default_value = (default), \
|
|
.is_valid_fn = (is_valid), \
|
|
.update_fn = (update), \
|
|
.convert_empty_to_null = (empty_to_null), \
|
|
} \
|
|
}
|
|
|
|
#define createSDSConfig(name, alias, flags, empty_to_null, config_addr, default, is_valid, update) { \
|
|
embedCommonConfig(name, alias, flags) \
|
|
embedConfigInterface(sdsConfigInit, sdsConfigSet, sdsConfigGet, sdsConfigRewrite) \
|
|
.data.sds = { \
|
|
.config = &(config_addr), \
|
|
.default_value = (default), \
|
|
.is_valid_fn = (is_valid), \
|
|
.update_fn = (update), \
|
|
.convert_empty_to_null = (empty_to_null), \
|
|
} \
|
|
}
|
|
|
|
/* Enum configs */
|
|
static void enumConfigInit(typeData data) {
|
|
*data.enumd.config = data.enumd.default_value;
|
|
}
|
|
|
|
static int enumConfigSet(typeData data, sds value, int update, const char **err) {
|
|
int enumval = configEnumGetValue(data.enumd.enum_value, value);
|
|
if (enumval == INT_MIN) {
|
|
sds enumerr = sdsnew("argument must be one of the following: ");
|
|
configEnum *enumNode = 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 (data.enumd.is_valid_fn && !data.enumd.is_valid_fn(enumval, err))
|
|
return 0;
|
|
int prev = *(data.enumd.config);
|
|
*(data.enumd.config) = enumval;
|
|
if (update && data.enumd.update_fn && !data.enumd.update_fn(enumval, prev, err)) {
|
|
*(data.enumd.config) = prev;
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void enumConfigGet(client *c, typeData data) {
|
|
addReplyBulkCString(c, configEnumGetNameOrUnknown(data.enumd.enum_value,*data.enumd.config));
|
|
}
|
|
|
|
static void enumConfigRewrite(typeData data, const char *name, struct rewriteConfigState *state) {
|
|
rewriteConfigEnumOption(state, name,*(data.enumd.config), data.enumd.enum_value, data.enumd.default_value);
|
|
}
|
|
|
|
#define createEnumConfig(name, alias, flags, enum, config_addr, default, is_valid, update) { \
|
|
embedCommonConfig(name, alias, flags) \
|
|
embedConfigInterface(enumConfigInit, enumConfigSet, enumConfigGet, enumConfigRewrite) \
|
|
.data.enumd = { \
|
|
.config = &(config_addr), \
|
|
.default_value = (default), \
|
|
.is_valid_fn = (is_valid), \
|
|
.update_fn = (update), \
|
|
.enum_value = (enum), \
|
|
} \
|
|
}
|
|
|
|
/* Gets a 'long long val' and sets it into the union, using a macro to get
|
|
* compile time type check. */
|
|
#define SET_NUMERIC_TYPE(val) \
|
|
if (data.numeric.numeric_type == NUMERIC_TYPE_INT) { \
|
|
*(data.numeric.config.i) = (int) val; \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_UINT) { \
|
|
*(data.numeric.config.ui) = (unsigned int) val; \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_LONG) { \
|
|
*(data.numeric.config.l) = (long) val; \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_ULONG) { \
|
|
*(data.numeric.config.ul) = (unsigned long) val; \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_LONG_LONG) { \
|
|
*(data.numeric.config.ll) = (long long) val; \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_ULONG_LONG) { \
|
|
*(data.numeric.config.ull) = (unsigned long long) val; \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_SIZE_T) { \
|
|
*(data.numeric.config.st) = (size_t) val; \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_SSIZE_T) { \
|
|
*(data.numeric.config.sst) = (ssize_t) val; \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_OFF_T) { \
|
|
*(data.numeric.config.ot) = (off_t) val; \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_TIME_T) { \
|
|
*(data.numeric.config.tt) = (time_t) val; \
|
|
}
|
|
|
|
/* 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 (data.numeric.numeric_type == NUMERIC_TYPE_INT) { \
|
|
val = *(data.numeric.config.i); \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_UINT) { \
|
|
val = *(data.numeric.config.ui); \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_LONG) { \
|
|
val = *(data.numeric.config.l); \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_ULONG) { \
|
|
val = *(data.numeric.config.ul); \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_LONG_LONG) { \
|
|
val = *(data.numeric.config.ll); \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_ULONG_LONG) { \
|
|
val = *(data.numeric.config.ull); \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_SIZE_T) { \
|
|
val = *(data.numeric.config.st); \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_SSIZE_T) { \
|
|
val = *(data.numeric.config.sst); \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_OFF_T) { \
|
|
val = *(data.numeric.config.ot); \
|
|
} else if (data.numeric.numeric_type == NUMERIC_TYPE_TIME_T) { \
|
|
val = *(data.numeric.config.tt); \
|
|
}
|
|
|
|
/* Numeric configs */
|
|
static void numericConfigInit(typeData data) {
|
|
SET_NUMERIC_TYPE(data.numeric.default_value)
|
|
}
|
|
|
|
static int numericBoundaryCheck(typeData data, long long ll, const char **err) {
|
|
if (data.numeric.numeric_type == NUMERIC_TYPE_ULONG_LONG ||
|
|
data.numeric.numeric_type == NUMERIC_TYPE_UINT ||
|
|
data.numeric.numeric_type == NUMERIC_TYPE_SIZE_T) {
|
|
/* Boundary check for unsigned types */
|
|
unsigned long long ull = ll;
|
|
unsigned long long upper_bound = data.numeric.upper_bound;
|
|
unsigned long long lower_bound = data.numeric.lower_bound;
|
|
if (ull > upper_bound || ull < lower_bound) {
|
|
snprintf(loadbuf, LOADBUF_SIZE,
|
|
"argument must be between %llu and %llu inclusive",
|
|
lower_bound,
|
|
upper_bound);
|
|
*err = loadbuf;
|
|
return 0;
|
|
}
|
|
} else {
|
|
/* Boundary check for signed types */
|
|
if (ll > data.numeric.upper_bound || ll < data.numeric.lower_bound) {
|
|
snprintf(loadbuf, LOADBUF_SIZE,
|
|
"argument must be between %lld and %lld inclusive",
|
|
data.numeric.lower_bound,
|
|
data.numeric.upper_bound);
|
|
*err = loadbuf;
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int numericConfigSet(typeData data, sds value, int update, const char **err) {
|
|
long long ll, prev = 0;
|
|
if (data.numeric.is_memory) {
|
|
int memerr;
|
|
ll = memtoll(value, &memerr);
|
|
if (memerr || ll < 0) {
|
|
*err = "argument must be a memory value";
|
|
return 0;
|
|
}
|
|
} else {
|
|
if (!string2ll(value, sdslen(value),&ll)) {
|
|
*err = "argument couldn't be parsed into an integer" ;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (!numericBoundaryCheck(data, ll, err))
|
|
return 0;
|
|
|
|
if (data.numeric.is_valid_fn && !data.numeric.is_valid_fn(ll, err))
|
|
return 0;
|
|
|
|
GET_NUMERIC_TYPE(prev)
|
|
SET_NUMERIC_TYPE(ll)
|
|
|
|
if (update && data.numeric.update_fn && !data.numeric.update_fn(ll, prev, err)) {
|
|
SET_NUMERIC_TYPE(prev)
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void numericConfigGet(client *c, typeData data) {
|
|
char buf[128];
|
|
long long value = 0;
|
|
|
|
GET_NUMERIC_TYPE(value)
|
|
|
|
ll2string(buf, sizeof(buf), value);
|
|
addReplyBulkCString(c, buf);
|
|
}
|
|
|
|
static void numericConfigRewrite(typeData data, const char *name, struct rewriteConfigState *state) {
|
|
long long value = 0;
|
|
|
|
GET_NUMERIC_TYPE(value)
|
|
|
|
if (data.numeric.is_memory) {
|
|
rewriteConfigBytesOption(state, name, value, data.numeric.default_value);
|
|
} else {
|
|
rewriteConfigNumericalOption(state, name, value, data.numeric.default_value);
|
|
}
|
|
}
|
|
|
|
#define INTEGER_CONFIG 0
|
|
#define MEMORY_CONFIG 1
|
|
|
|
#define embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) { \
|
|
embedCommonConfig(name, alias, flags) \
|
|
embedConfigInterface(numericConfigInit, numericConfigSet, numericConfigGet, numericConfigRewrite) \
|
|
.data.numeric = { \
|
|
.lower_bound = (lower), \
|
|
.upper_bound = (upper), \
|
|
.default_value = (default), \
|
|
.is_valid_fn = (is_valid), \
|
|
.update_fn = (update), \
|
|
.is_memory = (memory),
|
|
|
|
#define createIntConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
.numeric_type = NUMERIC_TYPE_INT, \
|
|
.config.i = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createUIntConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
.numeric_type = NUMERIC_TYPE_UINT, \
|
|
.config.ui = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createLongConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
.numeric_type = NUMERIC_TYPE_LONG, \
|
|
.config.l = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createULongConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
.numeric_type = NUMERIC_TYPE_ULONG, \
|
|
.config.ul = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createLongLongConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
.numeric_type = NUMERIC_TYPE_LONG_LONG, \
|
|
.config.ll = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createULongLongConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
.numeric_type = NUMERIC_TYPE_ULONG_LONG, \
|
|
.config.ull = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createSizeTConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
.numeric_type = NUMERIC_TYPE_SIZE_T, \
|
|
.config.st = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createSSizeTConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
.numeric_type = NUMERIC_TYPE_SSIZE_T, \
|
|
.config.sst = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createTimeTConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
.numeric_type = NUMERIC_TYPE_TIME_T, \
|
|
.config.tt = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
#define createOffTConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
embedCommonNumericalConfig(name, alias, flags, lower, upper, config_addr, default, memory, is_valid, update) \
|
|
.numeric_type = NUMERIC_TYPE_OFF_T, \
|
|
.config.ot = &(config_addr) \
|
|
} \
|
|
}
|
|
|
|
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 (!pathIsBaseName(val)) {
|
|
*err = "appendfilename can't be a path, just a filename";
|
|
return 0;
|
|
}
|
|
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(char *val, char *prev, const char **err) {
|
|
UNUSED(val);
|
|
UNUSED(prev);
|
|
if (redisSetProcTitle(NULL) == C_ERR) {
|
|
*err = "failed to set process title";
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int updateHZ(long long val, long long prev, const char **err) {
|
|
UNUSED(prev);
|
|
UNUSED(err);
|
|
/* Hz is more a hint from the user, so we accept values out of range
|
|
* but cap them to reasonable values. */
|
|
server.config_hz = val;
|
|
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(long long val, long long prev, const char **err) {
|
|
/* Do nothing if port is unchanged */
|
|
if (val == prev) {
|
|
return 1;
|
|
}
|
|
|
|
if (changeListenPort(val, &server.ipfd, acceptTcpHandler) == C_ERR) {
|
|
*err = "Unable to listen on this port. Check server logs.";
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int updateJemallocBgThread(int val, int prev, const char **err) {
|
|
UNUSED(prev);
|
|
UNUSED(err);
|
|
set_jemalloc_bg_thread(val);
|
|
return 1;
|
|
}
|
|
|
|
static int updateReplBacklogSize(long long val, long long prev, const char **err) {
|
|
/* resizeReplicationBacklog sets server.cfg_repl_backlog_size, and relies on
|
|
* being able to tell when the size changes, so restore prev before calling it. */
|
|
UNUSED(err);
|
|
server.cfg_repl_backlog_size = prev;
|
|
resizeReplicationBacklog(val);
|
|
return 1;
|
|
}
|
|
|
|
static int updateMaxmemory(long long val, long long prev, const char **err) {
|
|
UNUSED(prev);
|
|
UNUSED(err);
|
|
if (val) {
|
|
size_t used = zmalloc_used_memory()-freeMemoryGetNotCountedMemory();
|
|
if ((unsigned long long)val < 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);
|
|
}
|
|
performEvictions();
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int updateGoodSlaves(long long val, long long prev, const char **err) {
|
|
UNUSED(val);
|
|
UNUSED(prev);
|
|
UNUSED(err);
|
|
refreshGoodSlavesCount();
|
|
return 1;
|
|
}
|
|
|
|
static int updateAppendonly(int val, int prev, const char **err) {
|
|
UNUSED(prev);
|
|
if (val == 0 && server.aof_state != AOF_OFF) {
|
|
stopAppendOnly();
|
|
} else if (val && server.aof_state == AOF_OFF) {
|
|
if (startAppendOnly() == C_ERR) {
|
|
*err = "Unable to turn on AOF. Check server logs.";
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int updateSighandlerEnabled(int val, int prev, const char **err) {
|
|
UNUSED(err);
|
|
UNUSED(prev);
|
|
if (val)
|
|
setupSignalHandlers();
|
|
else
|
|
removeSignalHandlers();
|
|
return 1;
|
|
}
|
|
|
|
static int updateMaxclients(long long val, long long prev, const char **err) {
|
|
/* Try to check if the OS is capable of supporting so many FDs. */
|
|
if (val > prev) {
|
|
adjustOpenFilesLimit();
|
|
if (server.maxclients != val) {
|
|
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;
|
|
if (server.maxclients > prev) {
|
|
server.maxclients = prev;
|
|
adjustOpenFilesLimit();
|
|
}
|
|
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(int val, int prev, const char **err) {
|
|
UNUSED(prev);
|
|
|
|
if (val) {
|
|
if (setOOMScoreAdj(-1) == C_ERR) {
|
|
*err = "Failed to set current oom_score_adj. Check server logs.";
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
int updateRequirePass(sds val, sds prev, const char **err) {
|
|
UNUSED(prev);
|
|
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(val);
|
|
return 1;
|
|
}
|
|
|
|
#ifdef USE_OPENSSL
|
|
static int updateTlsCfg(char *val, char *prev, const char **err) {
|
|
UNUSED(val);
|
|
UNUSED(prev);
|
|
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 updateTlsCfgBool(int val, int prev, const char **err) {
|
|
UNUSED(val);
|
|
UNUSED(prev);
|
|
return updateTlsCfg(NULL, NULL, err);
|
|
}
|
|
|
|
static int updateTlsCfgInt(long long val, long long prev, const char **err) {
|
|
UNUSED(val);
|
|
UNUSED(prev);
|
|
return updateTlsCfg(NULL, NULL, err);
|
|
}
|
|
|
|
static int updateTLSPort(long long val, long long prev, const char **err) {
|
|
/* Do nothing if port is unchanged */
|
|
if (val == prev) {
|
|
return 1;
|
|
}
|
|
|
|
/* Configure TLS if tls is enabled */
|
|
if (prev == 0 && tlsConfigure(&server.tls_ctx_config) == C_ERR) {
|
|
*err = "Unable to update TLS configuration. Check server logs.";
|
|
return 0;
|
|
}
|
|
|
|
if (changeListenPort(val, &server.tlsfd, acceptTLSHandler) == C_ERR) {
|
|
*err = "Unable to listen on this port. Check server logs.";
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
#endif /* USE_OPENSSL */
|
|
|
|
standardConfig 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, IMMUTABLE_CONFIG, server.io_threads_do_reads, 0,NULL, NULL), /* Read + parse from threads? */
|
|
createBoolConfig("lua-replicate-commands", NULL, MODIFIABLE_CONFIG, server.lua_always_replicate_commands, 1, NULL, NULL),
|
|
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, MODIFIABLE_CONFIG, server.lazyfree_lazy_eviction, 0, NULL, NULL),
|
|
createBoolConfig("lazyfree-lazy-expire", NULL, MODIFIABLE_CONFIG, server.lazyfree_lazy_expire, 0, NULL, NULL),
|
|
createBoolConfig("lazyfree-lazy-server-del", NULL, MODIFIABLE_CONFIG, server.lazyfree_lazy_server_del, 0, NULL, NULL),
|
|
createBoolConfig("lazyfree-lazy-user-del", NULL, MODIFIABLE_CONFIG, server.lazyfree_lazy_user_del , 0, NULL, NULL),
|
|
createBoolConfig("lazyfree-lazy-user-flush", NULL, 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, MODIFIABLE_CONFIG, server.repl_diskless_sync, 0, NULL, NULL),
|
|
createBoolConfig("gopher-enabled", NULL, MODIFIABLE_CONFIG, server.gopher_enabled, 0, 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("cluster-replica-no-failover", "cluster-slave-no-failover", MODIFIABLE_CONFIG, server.cluster_slave_no_failover, 0, NULL, NULL), /* 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", 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, 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, 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("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, server.use_exit_on_panic, 0, NULL, NULL),
|
|
createBoolConfig("disable-thp", NULL, MODIFIABLE_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),
|
|
|
|
/* 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, NULL),
|
|
createStringConfig("syslog-ident", NULL, IMMUTABLE_CONFIG, ALLOW_EMPTY_STRING, server.syslog_ident, "redis", NULL, NULL),
|
|
createStringConfig("dbfilename", NULL, MODIFIABLE_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("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),
|
|
|
|
/* 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, MODIFIABLE_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, USER_FLAG_ALLCHANNELS, NULL, NULL),
|
|
createEnumConfig("sanitize-dump-payload", NULL, MODIFIABLE_CONFIG, sanitize_dump_payload_enum, server.sanitize_dump_payload, SANITIZE_DUMP_NO, NULL, 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, 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-ziplist-size", NULL, MODIFIABLE_CONFIG, INT_MIN, INT_MAX, server.list_max_ziplist_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-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, MODIFIABLE_CONFIG, 0, INT_MAX, server.list_compress_depth, 0, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("rdb-key-save-delay", NULL, MODIFIABLE_CONFIG, INT_MIN, INT_MAX, server.rdb_key_save_delay, 0, INTEGER_CONFIG, NULL, NULL),
|
|
createIntConfig("key-load-delay", NULL, MODIFIABLE_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),
|
|
|
|
/* Unsigned int configs */
|
|
createUIntConfig("maxclients", NULL, MODIFIABLE_CONFIG, 1, UINT_MAX, server.maxclients, 10000, INTEGER_CONFIG, NULL, updateMaxclients),
|
|
|
|
/* 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("lua-time-limit", NULL, MODIFIABLE_CONFIG, 0, LONG_MAX, server.lua_time_limit, 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, 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.cfg_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),
|
|
|
|
/* Size_t configs */
|
|
createSizeTConfig("hash-max-ziplist-entries", NULL, MODIFIABLE_CONFIG, 0, LONG_MAX, server.hash_max_ziplist_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-ziplist-entries", NULL, MODIFIABLE_CONFIG, 0, LONG_MAX, server.zset_max_ziplist_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-ziplist-value", NULL, MODIFIABLE_CONFIG, 0, LONG_MAX, server.hash_max_ziplist_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-ziplist-value", NULL, MODIFIABLE_CONFIG, 0, LONG_MAX, server.zset_max_ziplist_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, MODIFIABLE_CONFIG, 1024*1024, LONG_MAX, server.client_max_querybuf_len, 1024*1024*1024, MEMORY_CONFIG, NULL, NULL), /* Default: 1GB max query buffer. */
|
|
|
|
/* 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),
|
|
|
|
#ifdef USE_OPENSSL
|
|
createIntConfig("tls-port", NULL, MODIFIABLE_CONFIG, 0, 65535, server.tls_port, 0, INTEGER_CONFIG, NULL, updateTLSPort), /* 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, updateTlsCfgInt),
|
|
createIntConfig("tls-session-cache-timeout", NULL, MODIFIABLE_CONFIG, 0, INT_MAX, server.tls_ctx_config.session_cache_timeout, 300, INTEGER_CONFIG, NULL, updateTlsCfgInt),
|
|
createBoolConfig("tls-cluster", NULL, MODIFIABLE_CONFIG, server.tls_cluster, 0, NULL, updateTlsCfgBool),
|
|
createBoolConfig("tls-replication", NULL, MODIFIABLE_CONFIG, server.tls_replication, 0, NULL, updateTlsCfgBool),
|
|
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, updateTlsCfgBool),
|
|
createBoolConfig("tls-session-caching", NULL, MODIFIABLE_CONFIG, server.tls_ctx_config.session_caching, 1, NULL, updateTlsCfgBool),
|
|
createStringConfig("tls-cert-file", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.cert_file, NULL, NULL, updateTlsCfg),
|
|
createStringConfig("tls-key-file", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.key_file, NULL, NULL, updateTlsCfg),
|
|
createStringConfig("tls-key-file-pass", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.key_file_pass, NULL, NULL, updateTlsCfg),
|
|
createStringConfig("tls-client-cert-file", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.client_cert_file, NULL, NULL, updateTlsCfg),
|
|
createStringConfig("tls-client-key-file", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.client_key_file, NULL, NULL, updateTlsCfg),
|
|
createStringConfig("tls-client-key-file-pass", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.client_key_file_pass, NULL, NULL, updateTlsCfg),
|
|
createStringConfig("tls-dh-params-file", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.dh_params_file, NULL, NULL, updateTlsCfg),
|
|
createStringConfig("tls-ca-cert-file", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.ca_cert_file, NULL, NULL, updateTlsCfg),
|
|
createStringConfig("tls-ca-cert-dir", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.ca_cert_dir, NULL, NULL, updateTlsCfg),
|
|
createStringConfig("tls-protocols", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.protocols, NULL, NULL, updateTlsCfg),
|
|
createStringConfig("tls-ciphers", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.ciphers, NULL, NULL, updateTlsCfg),
|
|
createStringConfig("tls-ciphersuites", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, server.tls_ctx_config.ciphersuites, NULL, NULL, updateTlsCfg),
|
|
#endif
|
|
|
|
/* NULL Terminator */
|
|
{NULL}
|
|
};
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* CONFIG command entry point
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
void configCommand(client *c) {
|
|
/* Only allow CONFIG GET while loading. */
|
|
if (server.loading && strcasecmp(c->argv[1]->ptr,"get")) {
|
|
addReplyError(c,"Only CONFIG GET is allowed during loading");
|
|
return;
|
|
}
|
|
|
|
if (c->argc == 2 && !strcasecmp(c->argv[1]->ptr,"help")) {
|
|
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);
|
|
} else if (!strcasecmp(c->argv[1]->ptr,"set") && c->argc == 4) {
|
|
configSetCommand(c);
|
|
} else if (!strcasecmp(c->argv[1]->ptr,"get") && c->argc == 3) {
|
|
configGetCommand(c);
|
|
} else if (!strcasecmp(c->argv[1]->ptr,"resetstat") && c->argc == 2) {
|
|
resetServerStats();
|
|
resetCommandTableStats();
|
|
resetErrorTableStats();
|
|
addReply(c,shared.ok);
|
|
} else if (!strcasecmp(c->argv[1]->ptr,"rewrite") && c->argc == 2) {
|
|
if (server.configfile == NULL) {
|
|
addReplyError(c,"The server is running without a config file");
|
|
return;
|
|
}
|
|
if (rewriteConfig(server.configfile, 0) == -1) {
|
|
serverLog(LL_WARNING,"CONFIG REWRITE failed: %s", strerror(errno));
|
|
addReplyErrorFormat(c,"Rewriting config file: %s", strerror(errno));
|
|
} else {
|
|
serverLog(LL_WARNING,"CONFIG REWRITE executed with success.");
|
|
addReply(c,shared.ok);
|
|
}
|
|
} else {
|
|
addReplySubcommandSyntaxError(c);
|
|
return;
|
|
}
|
|
}
|