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
__pmDecodeInstanceReq(__pmPDU *pdubuf, __pmTimeval *when, pmInDom *indom, int *inst, char **name)
{
instance_req_t *pp;
char *pdu_end;
int namelen;
pp = (instance_req_t *)pdubuf;
pdu_end = (char *)pdubuf + pp->hdr.len;
if (pdu_end - (char *)pp < sizeof(instance_req_t) - sizeof(pp->name))
return PM_ERR_IPC;
when->tv_sec = ntohl(pp->when.tv_sec);
when->tv_usec = ntohl(pp->when.tv_usec);
*indom = __ntohpmInDom(pp->indom);
*inst = ntohl(pp->inst);
namelen = ntohl(pp->namelen);
if (namelen > 0) {
if (namelen >= INT_MAX - 1 || namelen > pp->hdr.len)
return PM_ERR_IPC;
if (pdu_end - (char *)pp < sizeof(instance_req_t) - sizeof(pp->name) + namelen)
return PM_ERR_IPC;
if ((*name = (char *)malloc(namelen+1)) == NULL)
return -oserror();
strncpy(*name, pp->name, namelen);
(*name)[namelen] = '\0';
}
else if (namelen < 0) {
return PM_ERR_IPC;
} else {
*name = NULL;
}
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;
}
int
__pmDecodeProfile(__pmPDU *pdubuf, int *ctxnump, __pmProfile **resultp)
{
__pmProfile *instprof;
__pmInDomProfile *prof, *p_end;
profile_t *pduProfile;
instprof_t *pduInstProf;
__pmPDU *p = (__pmPDU *)pdubuf;
char *pdu_end;
int ctxnum;
int sts = 0;
/* First the profile */
pduProfile = (profile_t *)pdubuf;
pdu_end = (char*)pdubuf + pduProfile->hdr.len;
if (pdu_end - (char*)pdubuf < sizeof(profile_t))
return PM_ERR_IPC;
ctxnum = ntohl(pduProfile->ctxnum);
if (ctxnum < 0 || ctxnum > LIMIT_CTXNUM)
return PM_ERR_IPC;
if ((instprof = (__pmProfile *)malloc(sizeof(__pmProfile))) == NULL)
return -oserror();
instprof->state = ntohl(pduProfile->g_state);
instprof->profile = NULL;
instprof->profile_len = ntohl(pduProfile->numprof);
if (instprof->profile_len < 0) {
sts = PM_ERR_IPC;
goto fail;
}
p += sizeof(profile_t) / sizeof(__pmPDU);
if (instprof->profile_len > 0) {
if (instprof->profile_len >= INT_MAX / sizeof(__pmInDomProfile) ||
instprof->profile_len >= pduProfile->hdr.len) {
sts = PM_ERR_IPC;
goto fail;
}
if ((instprof->profile = (__pmInDomProfile *)calloc(
instprof->profile_len, sizeof(__pmInDomProfile))) == NULL) {
sts = -oserror();
goto fail;
}
/* Next the profiles (if any) all together */
for (prof = instprof->profile, p_end = prof + instprof->profile_len;
prof < p_end;
prof++) {
if ((char *)p >= pdu_end) {
sts = PM_ERR_IPC;
goto fail;
}
pduInstProf = (instprof_t *)p;
prof->indom = __ntohpmInDom(pduInstProf->indom);
prof->state = ntohl(pduInstProf->state);
prof->instances = NULL;
prof->instances_len = ntohl(pduInstProf->numinst);
p += sizeof(instprof_t) / sizeof(__pmPDU);
}
/* Finally, all the instances for all profiles (if any) together */
for (prof = instprof->profile, p_end = prof+instprof->profile_len;
prof < p_end;
prof++) {
int j;
if (prof->instances_len > 0) {
if (prof->instances_len >= INT_MAX / sizeof(int) ||
prof->instances_len >= pduProfile->hdr.len) {
sts = PM_ERR_IPC;
goto fail;
}
prof->instances = (int *)calloc(prof->instances_len, sizeof(int));
if (prof->instances == NULL) {
sts = -oserror();
goto fail;
}
for (j = 0; j < prof->instances_len; j++, p++) {
if ((char *)p >= pdu_end) {
sts = PM_ERR_IPC;
goto fail;
}
prof->instances[j] = ntohl(*p);
}
} else if (prof->instances_len < 0) {
sts = PM_ERR_IPC;
goto fail;
} else {
prof->instances = NULL;
}
}
}
else {
instprof->profile = NULL;
}
*resultp = instprof;
*ctxnump = ctxnum;
return 0;
fail:
if (instprof != NULL) {
if (instprof->profile != NULL) {
for (prof = instprof->profile, p_end = prof+instprof->profile_len;
prof < p_end;
prof++) {
if (prof->instances != NULL)
free(prof->instances);
}
free(instprof->profile);
}
free(instprof);
}
return sts;
}
int
__pmDecodeInstance(__pmPDU *pdubuf, __pmInResult **result)
{
int i;
int j;
instance_t *rp;
instlist_t *ip;
__pmInResult *res;
int sts;
char *p;
char *pdu_end;
int keep_instlist;
int keep_namelist;
rp = (instance_t *)pdubuf;
pdu_end = (char *)pdubuf + rp->hdr.len;
if (pdu_end - (char *)pdubuf < sizeof(instance_t) - sizeof(__pmPDU))
return PM_ERR_IPC;
if ((res = (__pmInResult *)malloc(sizeof(*res))) == NULL)
return -oserror();
res->instlist = NULL;
res->namelist = NULL;
res->indom = __ntohpmInDom(rp->indom);
res->numinst = ntohl(rp->numinst);
if (res->numinst >= (INT_MAX / sizeof(res->instlist[0])) ||
res->numinst >= (INT_MAX / sizeof(res->namelist[0])) ||
res->numinst >= rp->hdr.len) {
sts = PM_ERR_IPC;
goto badsts;
}
if ((res->instlist = (int *)malloc(res->numinst * sizeof(res->instlist[0]))) == NULL) {
sts = -oserror();
goto badsts;
}
if ((res->namelist = (char **)malloc(res->numinst * sizeof(res->namelist[0]))) == NULL) {
sts = -oserror();
goto badsts;
}
/* required for __pmFreeInResult() in the event of a later error */
memset(res->namelist, 0, res->numinst * sizeof(res->namelist[0]));
if (res->numinst == 1)
keep_instlist = keep_namelist = 0;
else
keep_instlist = keep_namelist = 1;
for (i = j = 0; i < res->numinst; i++) {
ip = (instlist_t *)&rp->rest[j/sizeof(__pmPDU)];
if (sizeof(instlist_t) - sizeof(ip->name) > (size_t)(pdu_end - (char *)ip)) {
sts = PM_ERR_IPC;
goto badsts;
}
res->instlist[i] = ntohl(ip->inst);
if (res->instlist[i] != PM_IN_NULL)
keep_instlist = 1;
ip->namelen = ntohl(ip->namelen);
if (ip->namelen > 0)
keep_namelist = 1;
if (ip->namelen < 0) {
sts = PM_ERR_IPC;
goto badsts;
}
if (sizeof(instlist_t) - sizeof(int) + ip->namelen > (size_t)(pdu_end - (char *)ip)) {
sts = PM_ERR_IPC;
goto badsts;
}
if ((p = (char *)malloc(ip->namelen + 1)) == NULL) {
sts = -oserror();
goto badsts;
}
memcpy((void *)p, (void *)ip->name, ip->namelen);
p[ip->namelen] = '\0';
res->namelist[i] = p;
j += sizeof(*ip) - sizeof(ip->name) + PM_PDU_SIZE_BYTES(ip->namelen);
}
if (keep_instlist == 0) {
free(res->instlist);
res->instlist = NULL;
}
if (keep_namelist == 0) {
free(res->namelist[0]);
free(res->namelist);
res->namelist = NULL;
}
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_INDOM)
__pmDumpInResult(stderr, res);
#endif
*result = res;
return 0;
badsts:
__pmFreeInResult(res);
return sts;
}
