+++ /dev/null
-#include <net-snmp/net-snmp-config.h>
-
-/*
- * needed by util_funcs.h
- */
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-
-#include <net-snmp/net-snmp-includes.h>
-#include <net-snmp/agent/net-snmp-agent-includes.h>
-
-/*
- * header_generic() comes from here
- */
-#include "util_funcs.h"
-
-/*
- * include our .h file
- */
-#include "diskio.h"
-
-#define CACHE_TIMEOUT 10
-static time_t cache_time = 0;
-
-#ifdef solaris2
-#include <kstat.h>
-
-#define MAX_DISKS 20
-
-static kstat_ctl_t *kc;
-static kstat_t *ksp;
-static kstat_io_t kio;
-static int cache_disknr = -1;
-#endif /* solaris2 */
-
-#if defined(bsdi3) || defined(bsdi4)
-#include <string.h>
-#include <sys/param.h>
-#include <sys/sysctl.h>
-#include <sys/diskstats.h>
-#endif /* bsdi */
-
-#if defined (freebsd4) || defined(freebsd5)
-#include <sys/dkstat.h>
-#include <devstat.h>
-#endif /* freebsd */
-
-#if defined (darwin)
-#include <CoreFoundation/CoreFoundation.h>
-#include <IOKit/IOKitLib.h>
-#include <IOKit/storage/IOBlockStorageDriver.h>
-#include <IOKit/storage/IOMedia.h>
-#include <IOKit/IOBSD.h>
-
-static mach_port_t masterPort; /* to communicate with I/O Kit */
-#endif /* darwin */
-
-static char type[20];
-void diskio_parse_config(const char *, char *);
-FILE *file;
-
- /*********************
- *
- * Initialisation & common implementation functions
- *
- *********************/
-
-
-/*
- * this is an optional function called at the time the agent starts up
- * to do any initilizations you might require. You don't have to
- * create it, as it is optional.
- */
-
-/*
- * IMPORTANT: If you add or remove this function, you *must* re-run
- * the configure script as it checks for its existance.
- */
-
-void
-init_diskio(void)
-{
- /*
- * Define a 'variable' structure that is a representation of our mib.
- */
-
- /*
- * first, we have to pick the variable type. They are all defined in
- * the var_struct.h file in the agent subdirectory. I'm picking the
- * variable2 structure since the longest sub-component of the oid I
- * want to load is .2.1 and .2.2 so I need at most 2 spaces in the
- * last entry.
- */
-
- struct variable2 diskio_variables[] = {
- {DISKIO_INDEX, ASN_INTEGER, RONLY, var_diskio, 1, {1}},
- {DISKIO_DEVICE, ASN_OCTET_STR, RONLY, var_diskio, 1, {2}},
- {DISKIO_NREAD, ASN_COUNTER, RONLY, var_diskio, 1, {3}},
- {DISKIO_NWRITTEN, ASN_COUNTER, RONLY, var_diskio, 1, {4}},
- {DISKIO_READS, ASN_COUNTER, RONLY, var_diskio, 1, {5}},
- {DISKIO_WRITES, ASN_COUNTER, RONLY, var_diskio, 1, {6}},
- };
-
- /*
- * Define the OID pointer to the top of the mib tree that we're
- * registering underneath.
- */
- oid diskio_variables_oid[] =
- { 1, 3, 6, 1, 4, 1, 2021, 13, 15, 1, 1 };
-
- /*
- * register ourselves with the agent to handle our mib tree
- *
- * This is a macro defined in ../../snmp_vars.h. The arguments are:
- *
- * descr: A short description of the mib group being loaded.
- * var: The variable structure to load.
- * vartype: The variable structure used to define it (variable2, variable4, ...)
- * theoid: A *initialized* *exact length* oid pointer.
- * (sizeof(theoid) *must* return the number of elements!)
- */
- REGISTER_MIB("diskio", diskio_variables, variable2,
- diskio_variables_oid);
-
- /*
- * Added to parse snmpd.conf - abby
- */
- snmpd_register_config_handler("diskio", diskio_parse_config,
- NULL, "diskio [device-type]");
-
-#ifdef solaris2
- kc = kstat_open();
-
- if (kc == NULL)
- snmp_log(LOG_ERR, "diskio: Couln't open kstat\n");
-#endif
-
-#ifdef darwin
- /*
- * Get the I/O Kit communication handle.
- */
- IOMasterPort(bootstrap_port, &masterPort);
-#endif
-}
-
-void
-diskio_parse_config(const char *token, char *cptr)
-{
- copy_nword(cptr, type, sizeof(type));
-}
-
-#ifdef solaris2
-int
-get_disk(int disknr)
-{
- time_t now;
- int i = 0;
- kstat_t *tksp;
-
- now = time(NULL);
- if (disknr == cache_disknr && cache_time + CACHE_TIMEOUT > now) {
- return 1;
- }
-
- /*
- * could be optimiced by checking if cache_disknr<=disknr
- * if so, just reread the data - not going through the whole chain
- * from kc->kc_chain
- */
-
- for (tksp = kc->kc_chain; tksp != NULL; tksp = tksp->ks_next) {
- if (tksp->ks_type == KSTAT_TYPE_IO
- && !strcmp(tksp->ks_class, "disk")) {
- if (i == disknr) {
- if (kstat_read(kc, tksp, &kio) == -1)
- snmp_log(LOG_ERR, "diskio: kstat_read failed\n");
- ksp = tksp;
- cache_time = now;
- cache_disknr = disknr;
- return 1;
- } else {
- i++;
- }
- }
- }
- return 0;
-}
-
-
-u_char *
-var_diskio(struct variable * vp,
- oid * name,
- size_t * length,
- int exact, size_t * var_len, WriteMethod ** write_method)
-{
- /*
- * define any variables we might return as static!
- */
- static long long_ret;
-
- if (header_simple_table
- (vp, name, length, exact, var_len, write_method, MAX_DISKS))
- return NULL;
-
-
- if (get_disk(name[*length - 1] - 1) == 0)
- return NULL;
-
-
- /*
- * We can now simply test on vp's magic number, defined in diskio.h
- */
- switch (vp->magic) {
- case DISKIO_INDEX:
- long_ret = (long) name[*length - 1];
- return (u_char *) & long_ret;
- case DISKIO_DEVICE:
- *var_len = strlen(ksp->ks_name);
- return (u_char *) ksp->ks_name;
- case DISKIO_NREAD:
- long_ret = (signed long) kio.nread;
- return (u_char *) & long_ret;
- case DISKIO_NWRITTEN:
- long_ret = (signed long) kio.nwritten;
- return (u_char *) & long_ret;
- case DISKIO_READS:
- long_ret = (signed long) kio.reads;
- return (u_char *) & long_ret;
- case DISKIO_WRITES:
- long_ret = (signed long) kio.writes;
- return (u_char *) & long_ret;
-
- default:
- ERROR_MSG("diskio.c: don't know how to handle this request.");
- }
- /*
- * if we fall to here, fail by returning NULL
- */
- return NULL;
-}
-#endif /* solaris2 */
-
-#if defined(bsdi3) || defined(bsdi4)
-static int ndisk;
-static struct diskstats *dk;
-static char **dkname;
-
-static int
-getstats(void)
-{
- time_t now;
- int mib[2];
- char *t, *tp;
- int size, dkn_size, i;
-
- now = time(NULL);
- if (cache_time + CACHE_TIMEOUT > now) {
- return 1;
- }
- mib[0] = CTL_HW;
- mib[1] = HW_DISKSTATS;
- size = 0;
- if (sysctl(mib, 2, NULL, &size, NULL, 0) < 0) {
- perror("Can't get size of HW_DISKSTATS mib");
- return 0;
- }
- if (ndisk != size / sizeof(*dk)) {
- if (dk)
- free(dk);
- if (dkname) {
- for (i = 0; i < ndisk; i++)
- if (dkname[i])
- free(dkname[i]);
- free(dkname);
- }
- ndisk = size / sizeof(*dk);
- if (ndisk == 0)
- return 0;
- dkname = malloc(ndisk * sizeof(char *));
- mib[0] = CTL_HW;
- mib[1] = HW_DISKNAMES;
- if (sysctl(mib, 2, NULL, &dkn_size, NULL, 0) < 0) {
- perror("Can't get size of HW_DISKNAMES mib");
- return 0;
- }
- tp = t = malloc(dkn_size);
- if (sysctl(mib, 2, t, &dkn_size, NULL, 0) < 0) {
- perror("Can't get size of HW_DISKNAMES mib");
- return 0;
- }
- for (i = 0; i < ndisk; i++) {
- dkname[i] = strdup(tp);
- tp += strlen(tp) + 1;
- }
- free(t);
- dk = malloc(ndisk * sizeof(*dk));
- }
- mib[0] = CTL_HW;
- mib[1] = HW_DISKSTATS;
- if (sysctl(mib, 2, dk, &size, NULL, 0) < 0) {
- perror("Can't get HW_DISKSTATS mib");
- return 0;
- }
- cache_time = now;
- return 1;
-}
-
-u_char *
-var_diskio(struct variable * vp,
- oid * name,
- size_t * length,
- int exact, size_t * var_len, WriteMethod ** write_method)
-{
- static long long_ret;
- unsigned int indx;
-
- if (getstats() == 0)
- return 0;
-
- if (header_simple_table
- (vp, name, length, exact, var_len, write_method, ndisk))
- return NULL;
-
- indx = (unsigned int) (name[*length - 1] - 1);
- if (indx >= ndisk)
- return NULL;
-
- switch (vp->magic) {
- case DISKIO_INDEX:
- long_ret = (long) indx + 1;
- return (u_char *) & long_ret;
- case DISKIO_DEVICE:
- *var_len = strlen(dkname[indx]);
- return (u_char *) dkname[indx];
- case DISKIO_NREAD:
- long_ret =
- (signed long) (dk[indx].dk_sectors * dk[indx].dk_secsize);
- return (u_char *) & long_ret;
- case DISKIO_NWRITTEN:
- return NULL; /* Sigh... BSD doesn't keep seperate track */
- case DISKIO_READS:
- long_ret = (signed long) dk[indx].dk_xfers;
- return (u_char *) & long_ret;
- case DISKIO_WRITES:
- return NULL; /* Sigh... BSD doesn't keep seperate track */
-
- default:
- ERROR_MSG("diskio.c: don't know how to handle this request.");
- }
- return NULL;
-}
-#endif /* bsdi */
-
-#if defined(freebsd4) || defined(freebsd5)
-static int ndisk;
-static struct statinfo *stat;
-FILE *file;
-
-static int
-getstats(void)
-{
- time_t now;
- int i;
-
- now = time(NULL);
- if (cache_time + CACHE_TIMEOUT > now) {
- return 0;
- }
- if (stat == NULL) {
- stat = (struct statinfo *) malloc(sizeof(struct statinfo));
- stat->dinfo = (struct devinfo *) malloc(sizeof(struct devinfo));
- }
- memset(stat->dinfo, 0, sizeof(struct devinfo));
-
- if ((getdevs(stat)) == -1) {
- fprintf(stderr, "Can't get devices:%s\n", devstat_errbuf);
- return 1;
- }
- ndisk = stat->dinfo->numdevs;
- /* Gross hack to include device numbers in the device name array */
- for (i = 0; i < ndisk; i++) {
- char *cp = stat->dinfo->devices[i].device_name;
- int len = strlen(cp);
- if (len > DEVSTAT_NAME_LEN - 3)
- len -= 3;
- cp += len;
- sprintf(cp, "%d", stat->dinfo->devices[i].unit_number);
- }
- cache_time = now;
- return 0;
-}
-
-u_char *
-var_diskio(struct variable * vp,
- oid * name,
- size_t * length,
- int exact, size_t * var_len, WriteMethod ** write_method)
-{
- static long long_ret;
- unsigned int indx;
-
- if (getstats() == 1) {
- return NULL;
- }
-
-
- if (header_simple_table
- (vp, name, length, exact, var_len, write_method, ndisk)) {
- return NULL;
- }
-
- indx = (unsigned int) (name[*length - 1] - 1);
-
- if (indx >= ndisk)
- return NULL;
-
- switch (vp->magic) {
- case DISKIO_INDEX:
- long_ret = (long) indx + 1;;
- return (u_char *) & long_ret;
- case DISKIO_DEVICE:
- *var_len = strlen(stat->dinfo->devices[indx].device_name);
- return (u_char *) stat->dinfo->devices[indx].device_name;
- case DISKIO_NREAD:
- long_ret = (signed long) stat->dinfo->devices[indx].bytes_read;
- return (u_char *) & long_ret;
- case DISKIO_NWRITTEN:
- long_ret = (signed long) stat->dinfo->devices[indx].bytes_written;
- return (u_char *) & long_ret;
- case DISKIO_READS:
- long_ret = (signed long) stat->dinfo->devices[indx].num_reads;
- return (u_char *) & long_ret;
- case DISKIO_WRITES:
- long_ret = (signed long) stat->dinfo->devices[indx].num_writes;
- return (u_char *) & long_ret;
-
- default:
- ERROR_MSG("diskio.c: don't know how to handle this request.");
- }
- return NULL;
-}
-#endif /* freebsd4 */
-
-#if defined(darwin)
-
-#define MAXDRIVES 16 /* most drives we will record */
-#define MAXDRIVENAME 31 /* largest drive name we allow */
-
-#define kIDXBytesRead 0 /* used as index into the stats array in a drivestats struct */
-#define kIDXBytesWritten 1
-#define kIDXNumReads 2
-#define kIDXNumWrites 3
-#define kIDXLast 3
-
-struct drivestats {
- char name[MAXDRIVENAME + 1];
- long bsd_unit_number;
- long stats[kIDXLast+1];
-};
-
-static struct drivestats drivestat[MAXDRIVES];
-
-static mach_port_t masterPort; /* to communicate with I/O Kit */
-
-static int num_drives; /* number of drives detected */
-
-static int
-collect_drive_stats(io_registry_entry_t driver, long *stats)
-{
- CFNumberRef number;
- CFDictionaryRef properties;
- CFDictionaryRef statistics;
- long value;
- kern_return_t status;
- int i;
-
-
- /*
- * If the drive goes away, we may not get any properties
- * for it. So take some defaults. Nb: use memset ??
- */
- for (i = 0; i < kIDXLast; i++) {
- stats[i] = 0;
- }
-
- /* retrieve the properties */
- status = IORegistryEntryCreateCFProperties(driver, (CFMutableDictionaryRef *)&properties,
- kCFAllocatorDefault, kNilOptions);
- if (status != KERN_SUCCESS) {
- snmp_log(LOG_ERR, "diskio: device has no properties\n");
-/* fprintf(stderr, "device has no properties\n"); */
- return (1);
- }
-
- /* retrieve statistics from properties */
- statistics = (CFDictionaryRef)CFDictionaryGetValue(properties,
- CFSTR(kIOBlockStorageDriverStatisticsKey));
- if (statistics) {
-
- /* Now hand me the crystals. */
- if ((number = (CFNumberRef)CFDictionaryGetValue(statistics,
- CFSTR(kIOBlockStorageDriverStatisticsBytesReadKey)))) {
- CFNumberGetValue(number, kCFNumberSInt32Type, &value);
- stats[kIDXBytesRead] = value;
- }
-
- if ((number = (CFNumberRef)CFDictionaryGetValue(statistics,
- CFSTR(kIOBlockStorageDriverStatisticsBytesWrittenKey)))) {
- CFNumberGetValue(number, kCFNumberSInt32Type, &value);
- stats[kIDXBytesWritten] = value;
- }
-
- if ((number = (CFNumberRef)CFDictionaryGetValue(statistics,
- CFSTR(kIOBlockStorageDriverStatisticsReadsKey)))) {
- CFNumberGetValue(number, kCFNumberSInt32Type, &value);
- stats[kIDXNumReads] = value;
- }
- if ((number = (CFNumberRef)CFDictionaryGetValue(statistics,
- CFSTR(kIOBlockStorageDriverStatisticsWritesKey)))) {
- CFNumberGetValue(number, kCFNumberSInt32Type, &value);
- stats[kIDXNumWrites] = value;
- }
- }
- /* we're done with the properties, release them */
- CFRelease(properties);
- return (0);
-}
-
-/*
- * Check whether an IORegistryEntry refers to a valid
- * I/O device, and if so, collect the information.
- */
-static int
-handle_drive(io_registry_entry_t drive, struct drivestats * dstat)
-{
- io_registry_entry_t parent;
- CFDictionaryRef properties;
- CFStringRef name;
- CFNumberRef number;
- kern_return_t status;
-
- /* get drive's parent */
- status = IORegistryEntryGetParentEntry(drive, kIOServicePlane, &parent);
- if (status != KERN_SUCCESS) {
- snmp_log(LOG_ERR, "diskio: device has no parent\n");
-/* fprintf(stderr, "device has no parent\n"); */
- return(1);
- }
-
- if (IOObjectConformsTo(parent, "IOBlockStorageDriver")) {
-
- /* get drive properties */
- status = IORegistryEntryCreateCFProperties(drive, (CFMutableDictionaryRef *)&properties,
- kCFAllocatorDefault, kNilOptions);
- if (status != KERN_SUCCESS) {
- snmp_log(LOG_ERR, "diskio: device has no properties\n");
-/* fprintf(stderr, "device has no properties\n"); */
- return(1);
- }
-
- /* get BSD name and unitnumber from properties */
- name = (CFStringRef)CFDictionaryGetValue(properties,
- CFSTR(kIOBSDNameKey));
- number = (CFNumberRef)CFDictionaryGetValue(properties,
- CFSTR(kIOBSDUnitKey));
-
- /* Collect stats and if succesful store them with the name and unitnumber */
- if (!collect_drive_stats(parent, dstat->stats)) {
-
- CFStringGetCString(name, dstat->name, MAXDRIVENAME, CFStringGetSystemEncoding());
- CFNumberGetValue(number, kCFNumberSInt32Type, &dstat->bsd_unit_number);
- num_drives++;
- }
-
- /* clean up, return success */
- CFRelease(properties);
- return(0);
- }
-
- /* failed, don't keep parent */
- IOObjectRelease(parent);
- return(1);
-}
-
-static int
-getstats(void)
-{
- time_t now;
- io_iterator_t drivelist;
- io_registry_entry_t drive;
- CFMutableDictionaryRef match;
- kern_return_t status;
-
- now = time(NULL); /* register current time and check wether cache can be used */
- if (cache_time + CACHE_TIMEOUT > now) {
- return 0;
- }
-
- /* Retrieve a list of drives. */
- match = IOServiceMatching("IOMedia");
- CFDictionaryAddValue(match, CFSTR(kIOMediaWholeKey), kCFBooleanTrue);
- status = IOServiceGetMatchingServices(masterPort, match, &drivelist);
- if (status != KERN_SUCCESS) {
- snmp_log(LOG_ERR, "diskio: couldn't match whole IOMedia devices\n");
-/* fprintf(stderr,"Couldn't match whole IOMedia devices\n"); */
- return(1);
- }
-
- num_drives = 0; /* NB: Incremented by handle_drive */
- while ((drive = IOIteratorNext(drivelist)) && (num_drives < MAXDRIVES)) {
- handle_drive(drive, &drivestat[num_drives]);
- IOObjectRelease(drive);
- }
- IOObjectRelease(drivelist);
-
- cache_time = now;
- return (0);
-}
-
-u_char *
-var_diskio(struct variable * vp,
- oid * name,
- size_t * length,
- int exact, size_t * var_len, WriteMethod ** write_method)
-{
- static long long_ret;
- unsigned int indx;
-
- if (getstats() == 1) {
- return NULL;
- }
-
-
- if (header_simple_table
- (vp, name, length, exact, var_len, write_method, num_drives)) {
- return NULL;
- }
-
- indx = (unsigned int) (name[*length - 1] - 1);
-
- if (indx >= num_drives)
- return NULL;
-
- switch (vp->magic) {
- case DISKIO_INDEX:
- long_ret = (long) drivestat[indx].bsd_unit_number;
- return (u_char *) & long_ret;
- case DISKIO_DEVICE:
- *var_len = strlen(drivestat[indx].name);
- return (u_char *) drivestat[indx].name;
- case DISKIO_NREAD:
- long_ret = (signed long) drivestat[indx].stats[kIDXBytesRead];
- return (u_char *) & long_ret;
- case DISKIO_NWRITTEN:
- long_ret = (signed long) drivestat[indx].stats[kIDXBytesWritten];
- return (u_char *) & long_ret;
- case DISKIO_READS:
- long_ret = (signed long) drivestat[indx].stats[kIDXNumReads];
- return (u_char *) & long_ret;
- case DISKIO_WRITES:
- long_ret = (signed long) drivestat[indx].stats[kIDXNumWrites];
- return (u_char *) & long_ret;
-
- default:
- ERROR_MSG("diskio.c: don't know how to handle this request.");
- }
- return NULL;
-}
-#endif /* darwin */
-
projects / bcm963xx.git / blobdiff