1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _MPD_DEFS_H 28 #define _MPD_DEFS_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #include <alloca.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <strings.h> 40 #include <errno.h> 41 #include <sys/types.h> 42 #include <limits.h> 43 #include <fcntl.h> 44 #include <signal.h> 45 #include <poll.h> 46 #include <unistd.h> 47 #include <time.h> 48 #include <stdarg.h> 49 50 #include <sys/param.h> 51 #include <sys/socket.h> 52 #include <sys/sysmacros.h> 53 #include <arpa/inet.h> 54 #include <netdb.h> 55 56 #include <sys/ioctl.h> 57 #include <sys/sockio.h> 58 #include <net/if.h> 59 #include <stropts.h> 60 #include <sys/tihdr.h> 61 #include <inet/mib2.h> 62 63 #include <string.h> 64 #include <ctype.h> 65 66 #include <netinet/in_systm.h> 67 #include <netinet/in.h> 68 #include <netinet/ip.h> 69 #include <netinet/ip_icmp.h> 70 #include <netinet/if_ether.h> 71 #include <netinet/ip6.h> 72 #include <netinet/icmp6.h> 73 #include <net/route.h> 74 #include <net/if_dl.h> 75 76 #include <inet/ip.h> 77 #include <libintl.h> 78 #include <locale.h> 79 #include <deflt.h> 80 81 #include <libnvpair.h> 82 #include <libsysevent.h> 83 #include <sys/sysevent.h> 84 #include <sys/sysevent/eventdefs.h> 85 #include <sys/sysevent/ipmp.h> 86 87 #include <ipmp_mpathd.h> 88 #include <ipmp_query_impl.h> 89 #include <assert.h> 90 91 /* Debug flags */ 92 #define D_ALL 0xffff /* enable all debug */ 93 #define D_PROBE 0x0001 /* probe mechanism */ 94 #define D_FAILOVER 0x0002 /* failover mechanism */ 95 #define D_PHYINT 0x0004 /* phyint table */ 96 #define D_LOGINT 0x0008 /* logint table */ 97 #define D_TARGET 0x0010 /* target table */ 98 #define D_TIMER 0x0020 /* Timer mechanism */ 99 #define D_PKTBAD 0x0040 /* Malformed packet */ 100 #define D_LINKNOTE 0x0080 /* Link up/down notifications */ 101 /* 102 * Need a common header file that defines the 2 constants below. 103 * Many applications need them. 104 */ 105 #define IF_SEPARATOR ':' 106 #define IPV6_MAX_HOPS 255 107 108 /* 109 * General parameters for phyint failure/repair detection 110 */ 111 #define NUM_PROBE_FAILS 5 /* NUM_PROBE_FAILS probe failures */ 112 /* trigger NIC failure detection */ 113 #define NUM_PROBE_REPAIRS 10 /* NUM_PROBE_REPAIRS probe repairs */ 114 /* trigger NIC repair detection */ 115 116 #define MIN_RANDOM_FACTOR 0.5 /* Randomization factors to */ 117 #define MAX_RANDOM_FACTOR 1.0 /* determine probe send time */ 118 119 #define MIN_PROBE_TARGETS 3 /* Minimum number of targets */ 120 #define MAX_PROBE_TARGETS 5 /* Maximum number of targets */ 121 122 /* 123 * A target that is declared slow is usable again after MIN_RECOVERY_TIME ns 124 */ 125 #define MIN_RECOVERY_TIME (60000000000LL) /* (In ns) 60 secs */ 126 127 /* 128 * If the Failure Detection Time (FDT) is bumped up because the target CRTT 129 * is high, it won't be reduced for the next MIN_SETTLING_TIME ns, to prevent 130 * flapping of FDT 131 */ 132 #define MIN_SETTLING_TIME (60000000000LL) /* (In ns) 60 secs */ 133 134 /* 135 * The circular probe stats array should be able to hold enough 136 * samples to detect phyint failure, target failure, phyint repair 137 * and target repair. 138 */ 139 #define PROBE_STATS_COUNT \ 140 ((uint16_t)(NUM_PROBE_REPAIRS * MAX_PROBE_TARGETS + 2)) 141 142 #define FAILURE_DETECTION_TIME 10000 /* Default is 10 s */ 143 #define MIN_FAILURE_DETECTION_TIME 100 /* Minimum is 100 ms */ 144 #define FAILURE_DETECTION_QP 40 /* quiet period, in seconds */ 145 146 #define NEXT_FDT_MULTIPLE 2 /* Raise or lower the FDT by this */ 147 /* factor when required */ 148 #define LOWER_FDT_TRIGGER 4 /* Lower the FDT if crtt is less */ 149 /* than FDT / LOWER_FDT_TRIGGER */ 150 #define EXCEPTION_FACTOR 2 /* The exception target has a crtt */ 151 /* greater by this factor */ 152 153 #define IF_SCAN_INTERVAL 20000 /* Do initifs() every 20 secs */ 154 155 /* Return a random number from a range inclusive of the endpoints */ 156 #define GET_RANDOM(LOW, HIGH) (random() % ((HIGH) - (LOW) + 1) + (LOW)) 157 158 #define TIMER_INFINITY 0x7FFFFFFFU /* Never time out */ 159 160 /* 161 * Comparing unsigned 32 bit time values in a circular 32-bit sequence space 162 */ 163 #define TIME_GE(a, b) ((int32_t)((a) - (b)) >= 0) 164 #define TIME_GT(a, b) ((int32_t)((a) - (b)) > 0) 165 #define TIME_LT(a, b) ((int32_t)((a) - (b)) < 0) 166 #define TIME_LE(a, b) ((int32_t)((a) - (b)) <= 0) 167 168 /* 169 * Comparing unsigned 16 bit sequence numbers in a circular 16-bit 170 * sequence space 171 */ 172 #define SEQ_GE(a, b) ((int16_t)((a) - (b)) >= (int16_t)0) 173 #define SEQ_GT(a, b) ((int16_t)((a) - (b)) > (int16_t)0) 174 #define SEQ_LT(a, b) ((int16_t)((a) - (b)) < (int16_t)0) 175 #define SEQ_LE(a, b) ((int16_t)((a) - (b)) <= (int16_t)0) 176 177 #define AF_OTHER(af) ((af) == AF_INET ? AF_INET6 : AF_INET) 178 #define AF_STR(af) ((af) == AF_INET ? "inet" : "inet6") 179 180 /* 181 * Globals 182 */ 183 extern boolean_t failback_enabled; /* cmd option to disable failbacks */ 184 extern boolean_t track_all_phyints; /* cmd option to track all phyints */ 185 186 /* all times below in millisec */ 187 extern int user_probe_interval; /* interval between probes, as */ 188 /* derived from user specified fdt */ 189 extern int user_failure_detection_time; /* User specified fdt */ 190 191 extern int ifsock_v4; /* IPv4 socket for ioctls */ 192 extern int ifsock_v6; /* IPv6 socket for ioctls */ 193 194 extern boolean_t full_scan_required; /* Do full scans */ 195 196 extern int debug; /* debug option */ 197 198 extern boolean_t handle_link_notifications; 199 200 /* 201 * Function prototypes 202 */ 203 void timer_schedule(uint_t delay); 204 extern void logerr(char *fmt, ...); 205 extern void logtrace(char *fmt, ...); 206 extern void logdebug(char *fmt, ...); 207 extern void logperror(char *str); 208 209 extern int poll_add(int fd); 210 extern uint_t getcurrenttime(void); 211 212 #ifdef __cplusplus 213 } 214 #endif 215 216 #endif /* _MPD_DEFS_H */ 217