mpd_defs.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _MPD_DEFS_H
#define _MPD_DEFS_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#include <alloca.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <errno.h>
#include <sys/types.h>
#include <limits.h>
#include <fcntl.h>
#include <signal.h>
#include <poll.h>
#include <unistd.h>
#include <time.h>
#include <stdarg.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/sysmacros.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/ioctl.h>
#include <sys/sockio.h>
#include <net/if.h>
#include <stropts.h>
#include <sys/tihdr.h>
#include <inet/mib2.h>
#include <string.h>
#include <ctype.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/if_ether.h>
#include <netinet/ip6.h>
#include <netinet/icmp6.h>
#include <net/route.h>
#include <net/if_dl.h>
#include <inet/ip.h>
#include <libintl.h>
#include <locale.h>
#include <deflt.h>
#include <libnvpair.h>
#include <libsysevent.h>
#include <sys/sysevent.h>
#include <sys/sysevent/eventdefs.h>
#include <sys/sysevent/ipmp.h>
#include <ipmp_mpathd.h>
#include <ipmp_query_impl.h>
#include <assert.h>
/* Debug flags */
#define D_ALL 0xffff /* enable all debug */
#define D_PROBE 0x0001 /* probe mechanism */
#define D_FAILOVER 0x0002 /* failover mechanism */
#define D_PHYINT 0x0004 /* phyint table */
#define D_LOGINT 0x0008 /* logint table */
#define D_TARGET 0x0010 /* target table */
#define D_TIMER 0x0020 /* Timer mechanism */
#define D_PKTBAD 0x0040 /* Malformed packet */
#define D_LINKNOTE 0x0080 /* Link up/down notifications */
/*
* Need a common header file that defines the 2 constants below.
* Many applications need them.
*/
#define IF_SEPARATOR ':'
#define IPV6_MAX_HOPS 255
/*
* General parameters for phyint failure/repair detection
*/
#define NUM_PROBE_FAILS 5 /* NUM_PROBE_FAILS probe failures */
/* trigger NIC failure detection */
#define NUM_PROBE_REPAIRS 10 /* NUM_PROBE_REPAIRS probe repairs */
/* trigger NIC repair detection */
#define MIN_RANDOM_FACTOR 0.5 /* Randomization factors to */
#define MAX_RANDOM_FACTOR 1.0 /* determine probe send time */
#define MIN_PROBE_TARGETS 3 /* Minimum number of targets */
#define MAX_PROBE_TARGETS 5 /* Maximum number of targets */
/*
* A target that is declared slow is usable again after MIN_RECOVERY_TIME ns
*/
#define MIN_RECOVERY_TIME (60000000000LL) /* (In ns) 60 secs */
/*
* If the Failure Detection Time (FDT) is bumped up because the target CRTT
* is high, it won't be reduced for the next MIN_SETTLING_TIME ns, to prevent
* flapping of FDT
*/
#define MIN_SETTLING_TIME (60000000000LL) /* (In ns) 60 secs */
/*
* The circular probe stats array should be able to hold enough
* samples to detect phyint failure, target failure, phyint repair
* and target repair.
*/
#define PROBE_STATS_COUNT \
((uint16_t)(NUM_PROBE_REPAIRS * MAX_PROBE_TARGETS + 2))
#define FAILURE_DETECTION_TIME 10000 /* Default is 10 s */
#define MIN_FAILURE_DETECTION_TIME 100 /* Minimum is 100 ms */
#define FAILURE_DETECTION_QP 40 /* quiet period, in seconds */
#define NEXT_FDT_MULTIPLE 2 /* Raise or lower the FDT by this */
/* factor when required */
#define LOWER_FDT_TRIGGER 4 /* Lower the FDT if crtt is less */
/* than FDT / LOWER_FDT_TRIGGER */
#define EXCEPTION_FACTOR 2 /* The exception target has a crtt */
/* greater by this factor */
#define IF_SCAN_INTERVAL 20000 /* Do initifs() every 20 secs */
/* Return a random number from a range inclusive of the endpoints */
#define GET_RANDOM(LOW, HIGH) (random() % ((HIGH) - (LOW) + 1) + (LOW))
#define TIMER_INFINITY 0x7FFFFFFFU /* Never time out */
/*
* Comparing unsigned 32 bit time values in a circular 32-bit sequence space
*/
#define TIME_GE(a, b) ((int32_t)((a) - (b)) >= 0)
#define TIME_GT(a, b) ((int32_t)((a) - (b)) > 0)
#define TIME_LT(a, b) ((int32_t)((a) - (b)) < 0)
#define TIME_LE(a, b) ((int32_t)((a) - (b)) <= 0)
/*
* Comparing unsigned 16 bit sequence numbers in a circular 16-bit
* sequence space
*/
#define SEQ_GE(a, b) ((int16_t)((a) - (b)) >= (int16_t)0)
#define SEQ_GT(a, b) ((int16_t)((a) - (b)) > (int16_t)0)
#define SEQ_LT(a, b) ((int16_t)((a) - (b)) < (int16_t)0)
#define SEQ_LE(a, b) ((int16_t)((a) - (b)) <= (int16_t)0)
#define AF_OTHER(af) ((af) == AF_INET ? AF_INET6 : AF_INET)
#define AF_STR(af) ((af) == AF_INET ? "inet" : "inet6")
/*
* Globals
*/
extern boolean_t failback_enabled; /* cmd option to disable failbacks */
extern boolean_t track_all_phyints; /* cmd option to track all phyints */
/* all times below in millisec */
extern int user_probe_interval; /* interval between probes, as */
/* derived from user specified fdt */
extern int user_failure_detection_time; /* User specified fdt */
extern int ifsock_v4; /* IPv4 socket for ioctls */
extern int ifsock_v6; /* IPv6 socket for ioctls */
extern boolean_t full_scan_required; /* Do full scans */
extern int debug; /* debug option */
extern boolean_t handle_link_notifications;
/*
* Function prototypes
*/
void timer_schedule(uint_t delay);
extern void logerr(char *fmt, ...);
extern void logtrace(char *fmt, ...);
extern void logdebug(char *fmt, ...);
extern void logperror(char *str);
extern int poll_add(int fd);
extern uint_t getcurrenttime(void);
#ifdef __cplusplus
}
#endif
#endif /* _MPD_DEFS_H */