void CollectorLinux::addVolumeDependencies(const char *pcszVolume, DiskList& listDisks)
{
char szVolInfo[RTPATH_MAX];
int rc = RTPathAppPrivateArch(szVolInfo,
sizeof(szVolInfo) - sizeof("/" VBOXVOLINFO_NAME " ") - strlen(pcszVolume));
if (RT_FAILURE(rc))
{
LogRel(("VolInfo: Failed to get program path, rc=%Rrc\n", rc));
return;
}
strcat(szVolInfo, "/" VBOXVOLINFO_NAME " ");
strcat(szVolInfo, pcszVolume);
FILE *fp = popen(szVolInfo, "r");
if (fp)
{
char szBuf[128];
while (fgets(szBuf, sizeof(szBuf), fp))
if (strncmp(szBuf, RT_STR_TUPLE("dm-")))
listDisks.push_back(RTCString(trimTrailingDigits(szBuf)));
else
listDisks.push_back(RTCString(trimNewline(szBuf)));
pclose(fp);
}
else
listDisks.push_back(RTCString(pcszVolume));
}
int CollectorSolaris::getDiskListByFs(const char *name, DiskList& listUsage, DiskList& listLoad)
{
FsMap::iterator it = mFsMap.find(name);
if (it == mFsMap.end())
return VERR_INVALID_PARAMETER;
RTCString strName = it->second.substr(0, it->second.find("/"));
if (mZpoolOpen && mZpoolClose && mZpoolGetConfig && !strName.isEmpty())
{
zpool_handle_t *zh = mZpoolOpen(mZfsLib, strName.c_str());
if (zh)
{
unsigned int cChildren = 0;
nvlist_t **nvChildren = NULL;
nvlist_t *nvRoot = NULL;
nvlist_t *nvConfig = mZpoolGetConfig(zh, NULL);
if ( !nvlist_lookup_nvlist(nvConfig, ZPOOL_CONFIG_VDEV_TREE, &nvRoot)
&& !nvlist_lookup_nvlist_array(nvRoot, ZPOOL_CONFIG_CHILDREN, &nvChildren, &cChildren))
{
for (unsigned int i = 0; i < cChildren; ++i)
{
uint64_t fHole = 0;
uint64_t fLog = 0;
nvlist_lookup_uint64(nvChildren[i], ZPOOL_CONFIG_IS_HOLE, &fHole);
nvlist_lookup_uint64(nvChildren[i], ZPOOL_CONFIG_IS_LOG, &fLog);
if (!fHole && !fLog)
{
char *pszChildName = mZpoolVdevName(mZfsLib, zh, nvChildren[i], _B_FALSE);
Assert(pszChildName);
RTCString strDevPath("/dev/dsk/");
strDevPath += pszChildName;
char szLink[RTPATH_MAX];
if (readlink(strDevPath.c_str(), szLink, sizeof(szLink)) != -1)
{
char *pszStart, *pszEnd;
pszStart = strstr(szLink, "/devices/");
pszEnd = strrchr(szLink, ':');
if (pszStart && pszEnd)
{
pszStart += 8; // Skip "/devices"
*pszEnd = '\0'; // Trim partition
listUsage.push_back(physToInstName(pszStart));
}
}
free(pszChildName);
}
}
}
mZpoolClose(zh);
}
}
else
listUsage.push_back(pathToInstName(it->second.c_str()));
listLoad = listUsage;
return VINF_SUCCESS;
}
int CollectorLinux::getDiskListByFs(const char *pszPath, DiskList& listUsage, DiskList& listLoad)
{
FILE *mtab = setmntent("/etc/mtab", "r");
if (mtab)
{
struct mntent *mntent;
while ((mntent = getmntent(mtab)))
{
/* Skip rootfs entry, there must be another root mount. */
if (strcmp(mntent->mnt_fsname, "rootfs") == 0)
continue;
if (strcmp(pszPath, mntent->mnt_dir) == 0)
{
char szDevName[128];
char szFsName[1024];
/* Try to resolve symbolic link if necessary. Yes, we access the file system here! */
int rc = RTPathReal(mntent->mnt_fsname, szFsName, sizeof(szFsName));
if (RT_FAILURE(rc))
continue; /* something got wrong, just ignore this path */
/* check against the actual mtab entry, NOT the real path as /dev/mapper/xyz is
* often a symlink to something else */
if (!strncmp(mntent->mnt_fsname, RT_STR_TUPLE("/dev/mapper")))
{
/* LVM */
getDiskName(szDevName, sizeof(szDevName), mntent->mnt_fsname, false /*=fTrimDigits*/);
addVolumeDependencies(szDevName, listUsage);
listLoad = listUsage;
}
else if (!strncmp(szFsName, RT_STR_TUPLE("/dev/md")))
{
/* Software RAID */
getDiskName(szDevName, sizeof(szDevName), szFsName, false /*=fTrimDigits*/);
listUsage.push_back(RTCString(szDevName));
addRaidDisks(szDevName, listLoad);
}
else
{
/* Plain disk partition. Trim the trailing digits to get the drive name */
getDiskName(szDevName, sizeof(szDevName), szFsName, true /*=fTrimDigits*/);
listUsage.push_back(RTCString(szDevName));
listLoad.push_back(RTCString(szDevName));
}
if (listUsage.empty() || listLoad.empty())
{
LogRel(("Failed to retrive disk info: getDiskName(%s) --> %s\n",
mntent->mnt_fsname, szDevName));
}
break;
}
}
endmntent(mtab);
}
return VINF_SUCCESS;
}
void CollectorLinux::addRaidDisks(const char *pcszDevice, DiskList& listDisks)
{
FILE *f = fopen("/proc/mdstat", "r");
if (f)
{
char szBuf[128];
while (fgets(szBuf, sizeof(szBuf), f))
{
char *pszBufName = szBuf;
char *pszBufData = strchr(pszBufName, ' ');
if (!pszBufData)
{
LogRel(("CollectorLinux::addRaidDisks() failed to parse disk stats: %s\n", szBuf));
continue;
}
*pszBufData++ = '\0';
if (!strcmp(pcszDevice, pszBufName))
{
while (*pszBufData == ':') ++pszBufData; /* Skip delimiter */
while (*pszBufData == ' ') ++pszBufData; /* Skip spaces */
while (RT_C_IS_ALNUM(*pszBufData)) ++pszBufData; /* Skip status */
while (*pszBufData == ' ') ++pszBufData; /* Skip spaces */
while (RT_C_IS_ALNUM(*pszBufData)) ++pszBufData; /* Skip type */
while (*pszBufData != '\0')
{
while (*pszBufData == ' ') ++pszBufData; /* Skip spaces */
char *pszDisk = pszBufData;
while (RT_C_IS_ALPHA(*pszBufData))
++pszBufData;
if (*pszBufData)
{
*pszBufData++ = '\0';
listDisks.push_back(RTCString(pszDisk));
while (*pszBufData != '\0' && *pszBufData != ' ')
++pszBufData;
}
else
listDisks.push_back(RTCString(pszDisk));
}
break;
}
}
fclose(f);
}
}