diff --git a/src/rdbLoad.c b/src/rdbLoad.c index e7c863a..10e1ac5 100644 --- a/src/rdbLoad.c +++ b/src/rdbLoad.c @@ -1,4 +1,5 @@ #include "rdbLoad.h" +#include "sds.h" #include #include @@ -7,13 +8,13 @@ int rdbLoadRioWithLoading(migrateObj *mobj) { char buf[1024]; int error; if (syncReadLine(mobj->source_cc->fd, buf, 9, mobj->timeout) == -1) { - serverLog(LL_WARNING, "read version failed:%s,port:%d ", mobj->host, + serverLog(LL_WARNING, "[rm]read version failed:%s,port:%d ", mobj->host, mobj->port); return C_ERR; } buf[9] = '\0'; if (memcmp(buf, "REDIS", 5) != 0) { - serverLog(LL_WARNING, "Wrong signature trying to load DB from file"); + serverLog(LL_WARNING, "[rm] Wrong signature trying to load DB from file"); errno = EINVAL; return C_ERR; } @@ -25,25 +26,24 @@ int rdbLoadRioWithLoading(migrateObj *mobj) { errno = EINVAL; return C_ERR; } - serverLog(LL_NOTICE, "buf=%s", buf); long long lru_idle = -1, lfu_freq = -1, expiretime = -1, now = mstime(); while (1) { sds key; robj *val; - if ((type = rm_rdbLoadType(mobj)) == -1) { + if ((type = rmLoadType(mobj)) == -1) { serverLog(LL_WARNING, "read type failed"); return C_ERR; } if (type == RDB_OPCODE_EXPIRETIME) { - expiretime = rm_rdbLoadTime(mobj); + expiretime = rmLoadTime(mobj); if (expiretime == -1) { return C_ERR; } expiretime *= 1000; continue; } else if (type == RDB_OPCODE_EXPIRETIME_MS) { - expiretime = rm_rdbLoadMillisecondTime(mobj, rdbver); + expiretime = rmLoadMillisecondTime(mobj, rdbver); continue; } else if (type == RDB_OPCODE_FREQ) { uint8_t byte; @@ -53,47 +53,181 @@ int rdbLoadRioWithLoading(migrateObj *mobj) { continue; } else if (type == RDB_OPCODE_IDLE) { uint64_t qword; - if ((qword = rm_rdbLoadLen(mobj, NULL)) == RDB_LENERR) + if ((qword = rmLoadLen(mobj, NULL)) == RDB_LENERR) return C_ERR; lru_idle = qword; continue; } else if (type == RDB_OPCODE_EOF) { break; } else if (type == RDB_OPCODE_SELECTDB) { - if ((dbid = rm_rdbLoadLen(mobj, NULL)) == RDB_LENERR) return C_ERR; + if ((dbid = rmLoadLen(mobj, NULL)) == RDB_LENERR) return C_ERR; continue; } else if (type == RDB_OPCODE_RESIZEDB) { uint64_t db_size, expires_size; - if ((db_size = rm_rdbLoadLen(mobj, NULL)) == RDB_LENERR) return C_ERR; - if ((expires_size = rm_rdbLoadLen(mobj, NULL)) == RDB_LENERR) return C_ERR; + if ((db_size = rmLoadLen(mobj, NULL)) == RDB_LENERR) return C_ERR; + if ((expires_size = rmLoadLen(mobj, NULL)) == RDB_LENERR) return C_ERR; continue; } else if (type == RDB_OPCODE_AUX) { robj *auxkey, *auxval; + if ((auxkey = rmLoadStringObject(mobj)) == NULL) { + return NULL; + } + if ((auxval = rmLoadStringObject(mobj)) == NULL) { + decrRefCount(auxkey); + return NULL; + } + if (((char *)auxkey->ptr)[0] == '%') { + serverLog(LL_NOTICE, "RDB '%s': %s", (char *)auxkey->ptr, (char *)auxval->ptr); + } else if (!strcasecmp(auxkey->ptr, "repl-stream-db")) { + serverLog(LL_NOTICE, "repl-stream-db: %s", auxval->ptr); + } else if (!strcasecmp(auxkey->ptr, "repl-id")) { + memcmp(mobj->psync_replid, auxval->ptr, CONFIG_RUN_ID_SIZE + 1); + serverLog(LL_NOTICE, "repl-id: %s", auxval->ptr); + } else if (!strcasecmp(auxkey->ptr, "repl-offset")) { + serverLog(LL_NOTICE, "repl-offset: %s", auxval->ptr); + } else if (!strcasecmp(auxkey->ptr, "lua") || !strcasecmp(auxkey->ptr, "aof-base") + || !strcasecmp(auxkey->ptr, "redis-bits") || !strcasecmp(auxkey->ptr, "aof-preamble")) { + // do nothing + } else if (!strcasecmp(auxkey->ptr, "redis-ver")) { + serverLog(LL_NOTICE, "redis-ver:%s", auxval->ptr); + } else if (!strcasecmp(auxkey->ptr, "ctime")) { + time_t age = time(NULL) - strtol(auxval->ptr, NULL, 10); + if (age < 0) age = 0; + serverLog(LL_NOTICE, "RDB age %ld seconds", (unsigned long)age); + } else if (!strcasecmp(auxkey->ptr, "used-mem")) { + long long usedmem = strtoll(auxval->ptr, NULL, 10); + serverLog(LL_NOTICE, "RDB memory usage when created %.2f Mb", (double)usedmem / (1024 * 1024)); + } else { + serverLog(LL_DEBUG, "Unrecognized RDB AUX field: '%s'", (char *)auxkey->ptr); + } + continue; } else if (type == RDB_OPCODE_FUNCTION || type == RDB_OPCODE_FUNCTION2) { + continue; + } + if ((key = rmGenericLoadStringObject(mobj, RDB_LOAD_SDS, NULL)) == NULL) { + return NULL; } } } -void *rm_rdbGenericLoadStringObject(migrateObj *mobj, int flags, size_t *lenptr) { +robj *rmLoadStringObject(migrateObj *mobj) { + return rmGenericLoadStringObject(mobj, RDB_LOAD_NONE, NULL); +} + +void *rmGenericLoadStringObject(migrateObj *mobj, int flags, size_t *lenptr) { int encode = flags & RDB_LOAD_ENC; int plain = flags & RDB_LOAD_PLAIN; int sds = flags & RDB_LOAD_SDS; int isencoded; unsigned long long len; - + len = rmLoadLen(mobj, &isencoded); + if (len == RDB_LENERR) return NULL; + if (isencoded) { + switch (len) { + case RDB_ENC_INT8: + case RDB_ENC_INT16: + case RDB_ENC_INT32: + return rmLoadIntegerObject(mobj, len, flags, lenptr); + case RDB_ENC_LZF: + return rmLoadLzfStringObject(mobj, flags, lenptr); + default: + serverLog(LL_WARNING, "Unknown RDB string encoding type %llu", len); + return NULL; + } + } } -uint64_t rm_rdbLoadLen(migrateObj *mobj, int *isencoded) { +void *rmLoadIntegerObject(migrateObj *mobj, int enctype, int flags, size_t *lenptr) { + int plain = flags & RDB_LOAD_PLAIN; + int sds = flags & RDB_LOAD_SDS; + int encode = flags & RDB_LOAD_ENC; + unsigned char enc[4]; + long long val; + if (enctype == RDB_ENC_INT8) { + if (read(mobj->source_cc->fd, enc, 1) == 0) return NULL; + val = (signed char)enc[0]; + } else if (enctype == RDB_ENC_INT16) { + uint16_t v; + if (read(mobj->source_cc->fd, enc, 2) == 0) return NULL; + v = ((uint32_t)enc[0]) | ((uint32_t)enc[1] << 8); + val = (int16_t)v; + } else if (enctype == RDB_ENC_INT32) { + uint32_t v; + if (read(mobj->source_cc->fd, enc, 4) == 0) return NULL; + v = ((uint32_t)enc[0]) | ((uint32_t)enc[1] << 8) | ((uint32_t)enc[2] << 16) | ((uint32_t)enc[3] << 24); + val = (int32_t)v; + } else { + // rdbReportCorruptRDB("Unknown RDB integer encoding type %d", enctype); + return NULL; /* Never reached. */ + } + if (plain || sds) { + char buf[LONG_STR_SIZE], *p; + int len = ll2string(buf, sizeof(buf), val); + if (lenptr) *lenptr = len; + p = plain ? zmalloc(len) : sdsnewlen(SDS_NOINIT, len); + memcpy(p, buf, len); + return p; + } else if (encode) { + return createStringObjectFromLongLongForValue(val); + } else { + return createObject(OBJ_STRING, sdsfromlonglong(val)); + } +} + +void *rmLoadLzfStringObject(migrateObj *mobj, int flags, size_t *lenptr) { + int plain = flags & RDB_LOAD_PLAIN; + int sds = flags & RDB_LOAD_SDS; + uint64_t len, clen; + unsigned char *c = NULL; + char *val = NULL; + if ((clen = rmLoadLen(mobj, NULL)) == RDB_LENERR) return NULL; + if ((len = rmLoadLen(mobj, NULL)) == RDB_LENERR) return NULL; + if ((c = hi_malloc(clen)) == NULL) { + serverLog(LL_WARNING, "rdbLoadLzfStringObject failed allocating %llu bytes", (unsigned long long)clen); + goto err; + } + if (plain) { + val = hi_malloc(len); + } else { + val = hi_sdsnewlen(SDS_NOINIT, len); + } + if (!val) { + serverLog(LL_WARNING, "rdbLoadLzfStringObject failed allocating %llu bytes", (unsigned long long)len); + goto err; + } + if (lenptr) *lenptr = len; + if (read(mobj->source_cc->fd, c, len) == 0) return NULL; + if (lzf_decompress(c, clen, val, len) != len) { + serverLog(LL_WARNING, "Invalid LZF compressed string"); + goto err; + } + zfree(c); + + if (plain || sds) { + return val; + } else { + return createObject(OBJ_STRING, val); + } +err: + zfree(c); + if (plain) + zfree(val); + else + sdsfree(val); + return NULL; +} + +uint64_t rmLoadLen(migrateObj *mobj, int *isencoded) { uint64_t len; - if (rdbLoadLenByRef(mobj, isencoded, &len) == -1) + if (rmLoadLenByRef(mobj, isencoded, &len) == -1) return RDB_LENERR; return len; } -int rm_rdbLoadType(migrateObj *mobj) { +int rmLoadType(migrateObj *mobj) { unsigned char type; if (read(mobj->source_cc->fd, &type, 1) == 0) { return -1; @@ -102,7 +236,7 @@ int rm_rdbLoadType(migrateObj *mobj) { return type; } -int rm_rdbLoadLenByRef(migrateObj *mobj, int *isencoded, uint64_t *lenptr) { +int rmLoadLenByRef(migrateObj *mobj, int *isencoded, uint64_t *lenptr) { unsigned char buf[2]; int type; if (isencoded) @@ -138,7 +272,7 @@ int rm_rdbLoadLenByRef(migrateObj *mobj, int *isencoded, uint64_t *lenptr) { return 0; } -time_t rm_rdbLoadTime(migrateObj *mobj) { +time_t rmLoadTime(migrateObj *mobj) { int32_t t32; if (read(mobj->source_cc->fd, &t32, 4) == 0) { return -1; @@ -147,7 +281,7 @@ time_t rm_rdbLoadTime(migrateObj *mobj) { return (time_t)t32; } -long long rm_rdbLoadMillisecondTime(migrateObj *mobj, int rdbver) { +long long rmLoadMillisecondTime(migrateObj *mobj, int rdbver) { int64_t t64; if (read(mobj->source_cc->fd, &t64, 8) == 0) { return LLONG_MAX; diff --git a/src/rdbLoad.h b/src/rdbLoad.h index bdaccec..c61f279 100644 --- a/src/rdbLoad.h +++ b/src/rdbLoad.h @@ -27,22 +27,44 @@ #define RDB_LOAD_PLAIN (1 << 1) #define RDB_LOAD_SDS (1 << 2) +#define RDB_ENC_INT8 0 /* 8 bit signed integer */ +#define RDB_ENC_INT16 1 /* 16 bit signed integer */ +#define RDB_ENC_INT32 2 /* 32 bit signed integer */ +#define RDB_ENC_LZF 3 /* string compressed with FASTLZ */ + +#define LONG_STR_SIZE 21 +extern const char *SDS_NOINIT; +#define OBJ_STRING 0 /* String object. */ +#define OBJ_LIST 1 /* List object. */ +#define OBJ_SET 2 /* Set object. */ +#define OBJ_ZSET 3 /* Sorted set object. */ +#define OBJ_HASH 4 /* Hash object. */ + +#define htonu64(v) intrev64(v) +#define ntohu64(v) intrev64(v) + #define LLONG_MAX __LONG_LONG_MAX__ -int rm_rdbLoadRioWithLoading(migrateObj *mobj); +int rmLoadRioWithLoading(migrateObj *mobj); -int rm_rdbLoadType(migrateObj *mobj); +int rmLoadType(migrateObj *mobj); -time_t rm_rdbLoadTime(migrateObj *mobj); +time_t rmLoadTime(migrateObj *mobj); -long long rm_rdbLoadMillisecondTime(migrateObj *mobj, int rdbver); +long long rmLoadMillisecondTime(migrateObj *mobj, int rdbver); -int rm_rdbLoadLenByRef(migrateObj *mobi, int *isencoded, uint64_t *lenptr); +int rmLoadLenByRef(migrateObj *mobi, int *isencoded, uint64_t *lenptr); void rm_memrev64(void *p); -uint64_t rm_rdbLoadLen(migrateObj *mobj, int *isencoded); +uint64_t rmLoadLen(migrateObj *mobj, int *isencoded); -void *rm_rdbGenericLoadStringObject(migrateObj *mobj, int flags, size_t *lenptr); +robj *rmLoadStringObject(migrateObj *mobj); + +void *rmGenericLoadStringObject(migrateObj *mobj, int flags, size_t *lenptr); + +void *rmLoadIntegerObject(migrateObj *mobj, int enctype, int flags, size_t *lenptr); + +void *rmLoadLzfStringObject(migrateObj *mobj, int flags, size_t *lenptr); #endif