X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/571e257db12eaa6cdd47811f5663ac1003e32b1b..681c1910064356b330e92f31374058788059e53c:/src/config.c diff --git a/src/config.c b/src/config.c index 71a800a1..7e8f8a2b 100644 --- a/src/config.c +++ b/src/config.c @@ -1,3 +1,34 @@ +/* Configuration file parsing and CONFIG GET/SET commands implementation. + * + * Copyright (c) 2009-2012, Salvatore Sanfilippo + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Redis nor the names of its contributors may be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + + #include "redis.h" /*----------------------------------------------------------------------------- @@ -155,6 +186,9 @@ void loadServerConfigFromString(char *config) { loadServerConfig(argv[1],NULL); } else if (!strcasecmp(argv[0],"maxclients") && argc == 2) { server.maxclients = atoi(argv[1]); + if (server.maxclients < 1) { + err = "Invalid max clients limit"; goto loaderr; + } } else if (!strcasecmp(argv[0],"maxmemory") && argc == 2) { server.maxmemory = memtoll(argv[1],NULL); } else if (!strcasecmp(argv[0],"maxmemory-policy") && argc == 2) { @@ -202,10 +236,18 @@ void loadServerConfigFromString(char *config) { if ((server.repl_serve_stale_data = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } + } else if (!strcasecmp(argv[0],"slave-read-only") && argc == 2) { + if ((server.repl_slave_ro = yesnotoi(argv[1])) == -1) { + err = "argument must be 'yes' or 'no'"; goto loaderr; + } } else if (!strcasecmp(argv[0],"rdbcompression") && argc == 2) { if ((server.rdb_compression = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } + } else if (!strcasecmp(argv[0],"rdbchecksum") && argc == 2) { + if ((server.rdb_checksum = yesnotoi(argv[1])) == -1) { + err = "argument must be 'yes' or 'no'"; goto loaderr; + } } else if (!strcasecmp(argv[0],"activerehashing") && argc == 2) { if ((server.activerehashing = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; @@ -253,6 +295,10 @@ void loadServerConfigFromString(char *config) { { server.aof_rewrite_min_size = memtoll(argv[1],NULL); } else if (!strcasecmp(argv[0],"requirepass") && argc == 2) { + if (strlen(argv[1]) > REDIS_AUTHPASS_MAX_LEN) { + err = "Password is longer than REDIS_AUTHPASS_MAX_LEN"; + goto loaderr; + } server.requirepass = zstrdup(argv[1]); } else if (!strcasecmp(argv[0],"pidfile") && argc == 2) { zfree(server.pidfile); @@ -332,6 +378,19 @@ void loadServerConfigFromString(char *config) { if ((server.stop_writes_on_bgsave_err = yesnotoi(argv[1])) == -1) { err = "argument must be 'yes' or 'no'"; goto loaderr; } + } else if (!strcasecmp(argv[0],"slave-priority") && argc == 2) { + server.slave_priority = atoi(argv[1]); + } 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; + } + err = sentinelHandleConfiguration(argv+1,argc-1); + if (err) goto loaderr; + } } else { err = "Bad directive or wrong number of arguments"; goto loaderr; } @@ -400,6 +459,7 @@ void configSetCommand(redisClient *c) { zfree(server.rdb_filename); server.rdb_filename = zstrdup(o->ptr); } else if (!strcasecmp(c->argv[2]->ptr,"requirepass")) { + if (sdslen(o->ptr) > REDIS_AUTHPASS_MAX_LEN) goto badfmt; zfree(server.requirepass); server.requirepass = ((char*)o->ptr)[0] ? zstrdup(o->ptr) : NULL; } else if (!strcasecmp(c->argv[2]->ptr,"masterauth")) { @@ -409,7 +469,12 @@ void configSetCommand(redisClient *c) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; server.maxmemory = ll; - if (server.maxmemory) freeMemoryIfNeeded(); + if (server.maxmemory) { + if (server.maxmemory < zmalloc_used_memory()) { + redisLog(REDIS_WARNING,"WARNING: the new maxmemory value set via CONFIG SET is smaller than the current memory usage. This will result in keys eviction and/or inability to accept new write commands depending on the maxmemory-policy."); + } + freeMemoryIfNeeded(); + } } else if (!strcasecmp(c->argv[2]->ptr,"maxmemory-policy")) { if (!strcasecmp(o->ptr,"volatile-lru")) { server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_LRU; @@ -507,6 +572,11 @@ void configSetCommand(redisClient *c) { if (yn == -1) goto badfmt; server.repl_serve_stale_data = yn; + } else if (!strcasecmp(c->argv[2]->ptr,"slave-read-only")) { + int yn = yesnotoi(o->ptr); + + if (yn == -1) goto badfmt; + server.repl_slave_ro = yn; } else if (!strcasecmp(c->argv[2]->ptr,"dir")) { if (chdir((char*)o->ptr) == -1) { addReplyErrorFormat(c,"Changing directory: %s", strerror(errno)); @@ -611,6 +681,26 @@ void configSetCommand(redisClient *c) { } else if (!strcasecmp(c->argv[2]->ptr,"repl-timeout")) { if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll <= 0) goto badfmt; server.repl_timeout = ll; + } else if (!strcasecmp(c->argv[2]->ptr,"watchdog-period")) { + if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt; + if (ll) + enableWatchdog(ll); + else + disableWatchdog(); + } else if (!strcasecmp(c->argv[2]->ptr,"rdbcompression")) { + int yn = yesnotoi(o->ptr); + + if (yn == -1) goto badfmt; + server.rdb_compression = yn; + } else if (!strcasecmp(c->argv[2]->ptr,"rdbchecksum")) { + int yn = yesnotoi(o->ptr); + + if (yn == -1) goto badfmt; + server.rdb_checksum = yn; + } else if (!strcasecmp(c->argv[2]->ptr,"slave-priority")) { + if (getLongLongFromObject(o,&ll) == REDIS_ERR || + ll <= 0) goto badfmt; + server.slave_priority = ll; } else { addReplyErrorFormat(c,"Unsupported CONFIG parameter: %s", (char*)c->argv[2]->ptr); @@ -699,16 +789,21 @@ void configGetCommand(redisClient *c) { config_get_numerical_field("repl-ping-slave-period",server.repl_ping_slave_period); config_get_numerical_field("repl-timeout",server.repl_timeout); config_get_numerical_field("maxclients",server.maxclients); + config_get_numerical_field("watchdog-period",server.watchdog_period); + config_get_numerical_field("slave-priority",server.slave_priority); /* Bool (yes/no) values */ config_get_bool_field("no-appendfsync-on-rewrite", server.aof_no_fsync_on_rewrite); config_get_bool_field("slave-serve-stale-data", server.repl_serve_stale_data); + config_get_bool_field("slave-read-only", + server.repl_slave_ro); config_get_bool_field("stop-writes-on-bgsave-error", server.stop_writes_on_bgsave_err); config_get_bool_field("daemonize", server.daemonize); config_get_bool_field("rdbcompression", server.rdb_compression); + config_get_bool_field("rdbchecksum", server.rdb_checksum); config_get_bool_field("activerehashing", server.activerehashing); /* Everything we can't handle with macros follows. */ @@ -841,6 +936,9 @@ void configCommand(redisClient *c) { server.stat_numcommands = 0; server.stat_numconnections = 0; server.stat_expiredkeys = 0; + server.stat_rejected_conn = 0; + server.stat_fork_time = 0; + server.aof_delayed_fsync = 0; resetCommandTableStats(); addReply(c,shared.ok); } else {