int __pmDecodeLabelReq(__pmPDU *pdubuf, int *ident, int *otype) { label_req_t *pp; char *pduend; int type; pp = (label_req_t *)pdubuf; pduend = (char *)pdubuf + pp->hdr.len; if (pduend - (char*)pp < sizeof(label_req_t)) return PM_ERR_IPC; type = *otype = ntohl(pp->type); if (type & PM_LABEL_DOMAIN) *ident = ntohl(pp->ident); else if (type & (PM_LABEL_CLUSTER|PM_LABEL_ITEM|PM_LABEL_INSTANCES)) *ident = __ntohpmID(pp->ident); else if (type & PM_LABEL_INDOM) *ident = __ntohpmInDom(pp->ident); else *ident = PM_ID_NULL; return 0; }
int __pmDecodeDescReq(__pmPDU *pdubuf, pmID *pmid) { desc_req_t *pp; char *pduend; pp = (desc_req_t *)pdubuf; pduend = (char *)pdubuf + pp->hdr.len; if (pduend - (char*)pp != sizeof(desc_req_t)) return PM_ERR_IPC; *pmid = __ntohpmID(pp->pmid); return 0; }
int __pmDecodeDesc(__pmPDU *pdubuf, pmDesc *desc) { desc_t *pp; char *pduend; pp = (desc_t *)pdubuf; pduend = (char *)pdubuf + pp->hdr.len; if (pduend - (char*)pp != sizeof(desc_t)) return PM_ERR_IPC; desc->type = ntohl(pp->desc.type); desc->sem = ntohl(pp->desc.sem); desc->indom = __ntohpmInDom(pp->desc.indom); desc->units = __ntohpmUnits(pp->desc.units); desc->pmid = __ntohpmID(pp->desc.pmid); return 0; }
int __pmDecodeTextReq(__pmPDU *pdubuf, int *ident, int *type) { text_req_t *pp; char *pduend; pp = (text_req_t *)pdubuf; pduend = (char *)pdubuf + pp->hdr.len; if (pduend - (char*)pp < sizeof(text_req_t)) return PM_ERR_IPC; *type = ntohl(pp->type); if ((*type) & PM_TEXT_PMID) *ident = __ntohpmID(pp->ident); else if ((*type) & PM_TEXT_INDOM) *ident = __ntohpmInDom(pp->ident); else *ident = PM_INDOM_NULL; return 0; }
/* * load _all_ of the hashed pmDesc and __pmLogInDom structures from the metadata * log file -- used at the initialization (NewContext) of an archive * If version 2 then * load all the names from the meta data and create l_pmns. */ int __pmLogLoadMeta(__pmLogCtl *lcp) { int rlen; int check; pmDesc *dp; int sts = 0; __pmLogHdr h; FILE *f = lcp->l_mdfp; int version2 = ((lcp->l_label.ill_magic & 0xff) == PM_LOG_VERS02); int numpmid = 0; int n; if (version2) { if ((sts = __pmNewPMNS(&(lcp->l_pmns))) < 0) { goto end; } } fseek(f, (long)(sizeof(__pmLogLabel) + 2*sizeof(int)), SEEK_SET); for ( ; ; ) { n = (int)fread(&h, 1, sizeof(__pmLogHdr), f); /* swab hdr */ h.len = ntohl(h.len); h.type = ntohl(h.type); if (n != sizeof(__pmLogHdr) || h.len <= 0) { if (feof(f)) { clearerr(f); sts = 0; goto end; } #ifdef PCP_DEBUG if (pmDebug & DBG_TRACE_LOGMETA) { fprintf(stderr, "__pmLogLoadMeta: header read -> %d: expected: %d\n", n, (int)sizeof(__pmLogHdr)); } #endif if (ferror(f)) { clearerr(f); sts = -errno; } else sts = PM_ERR_LOGREC; goto end; } #ifdef PCP_DEBUG if (pmDebug & DBG_TRACE_LOGMETA) { fprintf(stderr, "__pmLogLoadMeta: record len=%d, type=%d @ offset=%d\n", h.len, h.type, (int)(ftell(f) - sizeof(__pmLogHdr))); } #endif rlen = h.len - (int)sizeof(__pmLogHdr) - (int)sizeof(int); if (h.type == TYPE_DESC) { numpmid++; if ((dp = (pmDesc *)malloc(sizeof(pmDesc))) == NULL) { sts = -errno; goto end; } if ((n = (int)fread(dp, 1, sizeof(pmDesc), f)) != sizeof(pmDesc)) { #ifdef PCP_DEBUG if (pmDebug & DBG_TRACE_LOGMETA) { fprintf(stderr, "__pmLogLoadMeta: pmDesc read -> %d: expected: %d\n", n, (int)sizeof(pmDesc)); } #endif if (ferror(f)) { clearerr(f); sts = -errno; } else sts = PM_ERR_LOGREC; goto end; } else { /* swab desc */ dp->type = ntohl(dp->type); dp->sem = ntohl(dp->sem); dp->indom = __ntohpmInDom(dp->indom); dp->units = __ntohpmUnits(dp->units); dp->pmid = __ntohpmID(dp->pmid); } if ((sts = __pmHashAdd((int)dp->pmid, (void *)dp, &lcp->l_hashpmid)) < 0) goto end; if (version2) { char name[MAXPATHLEN]; int numnames; int i; int len; /* read in the names & store in PMNS tree ... */ if ((n = (int)fread(&numnames, 1, sizeof(numnames), f)) != sizeof(numnames)) { #ifdef PCP_DEBUG if (pmDebug & DBG_TRACE_LOGMETA) { fprintf(stderr, "__pmLogLoadMeta: numnames read -> %d: expected: %d\n", n, (int)sizeof(numnames)); } #endif if (ferror(f)) { clearerr(f); sts = -errno; } else sts = PM_ERR_LOGREC; goto end; } else { /* swab numnames */ numnames = ntohl(numnames); } for (i = 0; i < numnames; i++) { if ((n = (int)fread(&len, 1, sizeof(len), f)) != sizeof(len)) { #ifdef PCP_DEBUG if (pmDebug & DBG_TRACE_LOGMETA) { fprintf(stderr, "__pmLogLoadMeta: len name[%d] read -> %d: expected: %d\n", i, n, (int)sizeof(len)); } #endif if (ferror(f)) { clearerr(f); sts = -errno; } else sts = PM_ERR_LOGREC; goto end; } else { /* swab len */ len = ntohl(len); } if ((n = (int)fread(name, 1, len, f)) != len) { #ifdef PCP_DEBUG if (pmDebug & DBG_TRACE_LOGMETA) { fprintf(stderr, "__pmLogLoadMeta: name[%d] read -> %d: expected: %d\n", i, n, len); } #endif if (ferror(f)) { clearerr(f); sts = -errno; } else sts = PM_ERR_LOGREC; goto end; } name[len] = '\0'; #ifdef PCP_DEBUG if (pmDebug & DBG_TRACE_LOGMETA) { fprintf(stderr, "__pmLogLoadMeta: PMID: %s name: %s\n", pmIDStr(dp->pmid), name); } #endif if ((sts = __pmAddPMNSNode(lcp->l_pmns, dp->pmid, name)) < 0) { /* * If we see a duplicate PMID, its a recoverable error. * We wont be able to see all of the data in the log, but * its better to provide access to some rather than none, * esp. when only one or two metric IDs may be corrupted * in this way (which we may not be interested in anyway). */ if (sts != PM_ERR_PMID) goto end; sts = 0; } }/*for*/ }/*version2*/ } else if (h.type == TYPE_INDOM) { int *tbuf; pmInDom indom; __pmTimeval *when; int numinst; int *instlist; char **namelist; char *namebase; int *stridx; int i; int k; int allinbuf; if ((tbuf = (int *)malloc(rlen)) == NULL) { sts = -errno; goto end; } if ((n = (int)fread(tbuf, 1, rlen, f)) != rlen) { #ifdef PCP_DEBUG if (pmDebug & DBG_TRACE_LOGMETA) { fprintf(stderr, "__pmLogLoadMeta: indom read -> %d: expected: %d\n", n, rlen); } #endif if (ferror(f)) { clearerr(f); sts = -errno; } else sts = PM_ERR_LOGREC; goto end; } k = 0; when = (__pmTimeval *)&tbuf[k]; when->tv_sec = ntohl(when->tv_sec); when->tv_usec = ntohl(when->tv_usec); k += sizeof(*when)/sizeof(int); indom = __ntohpmInDom((unsigned int)tbuf[k++]); numinst = ntohl(tbuf[k++]); if (numinst > 0) { instlist = &tbuf[k]; k += numinst; stridx = &tbuf[k]; #if defined(HAVE_32BIT_PTR) namelist = (char **)stridx; allinbuf = 1; /* allocation is all in tbuf */ #else allinbuf = 0; /* allocation for namelist + tbuf */ /* need to allocate to hold the pointers */ namelist = (char **)malloc(numinst*sizeof(char*)); if (namelist == NULL) { sts = -errno; goto end; } #endif k += numinst; namebase = (char *)&tbuf[k]; for (i = 0; i < numinst; i++) { instlist[i] = ntohl(instlist[i]); namelist[i] = &namebase[ntohl(stridx[i])]; } } else { /* no instances, or an error */ instlist = NULL; namelist = NULL; } if ((sts = addindom(lcp, indom, when, numinst, instlist, namelist, tbuf, allinbuf)) < 0) goto end; } else fseek(f, (long)rlen, SEEK_CUR); n = (int)fread(&check, 1, sizeof(check), f); check = ntohl(check); if (n != sizeof(check) || h.len != check) { #ifdef PCP_DEBUG if (pmDebug & DBG_TRACE_LOGMETA) { fprintf(stderr, "__pmLogLoadMeta: trailer read -> %d or len=%d: expected %d @ offset=%d\n", n, check, h.len, (int)(ftell(f) - sizeof(check))); } #endif if (ferror(f)) { clearerr(f); sts = -errno; } else sts = PM_ERR_LOGREC; goto end; } }/*for*/ end: fseek(f, (long)(sizeof(__pmLogLabel) + 2*sizeof(int)), SEEK_SET); if (version2 && sts == 0) { __pmFixPMNSHashTab(lcp->l_pmns, numpmid, 1); } return sts; }