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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _MPD_DEFS_H 27 #define _MPD_DEFS_H 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #include <alloca.h> 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <strings.h> 37 #include <errno.h> 38 #include <sys/types.h> 39 #include <limits.h> 40 #include <fcntl.h> 41 #include <signal.h> 42 #include <poll.h> 43 #include <unistd.h> 44 #include <time.h> 45 #include <stdarg.h> 46 #include <syslog.h> 47 48 #include <sys/param.h> 49 #include <sys/socket.h> 50 #include <sys/sysmacros.h> 51 #include <arpa/inet.h> 52 #include <netdb.h> 53 54 #include <sys/ioctl.h> 55 #include <sys/sockio.h> 56 #include <net/if.h> 57 #include <stropts.h> 58 #include <sys/tihdr.h> 59 #include <inet/mib2.h> 60 61 #include <string.h> 62 #include <ctype.h> 63 64 #include <netinet/in_systm.h> 65 #include <netinet/in.h> 66 #include <netinet/ip.h> 67 #include <netinet/ip_icmp.h> 68 #include <netinet/if_ether.h> 69 #include <netinet/ip6.h> 70 #include <netinet/icmp6.h> 71 #include <net/route.h> 72 #include <net/if_dl.h> 73 #include <tiuser.h> 74 75 #include <inet/ip.h> 76 #include <libintl.h> 77 #include <locale.h> 78 #include <deflt.h> 79 80 #include <libdlpi.h> 81 #include <libinetutil.h> 82 #include <libnvpair.h> 83 #include <libsysevent.h> 84 #include <sys/sysevent.h> 85 #include <sys/sysevent/eventdefs.h> 86 #include <sys/sysevent/ipmp.h> 87 88 #include <ipmp_mpathd.h> 89 #include <ipmp_query_impl.h> 90 #include <assert.h> 91 92 /* Debug flags */ 93 #define D_ALL 0xffff /* enable all debug */ 94 #define D_PROBE 0x0001 /* probe mechanism */ 95 #define D_FAILREP 0x0002 /* failure/repair mechanism */ 96 #define D_PHYINT 0x0004 /* phyint table */ 97 #define D_LOGINT 0x0008 /* logint table */ 98 #define D_TARGET 0x0010 /* target table */ 99 #define D_TIMER 0x0020 /* Timer mechanism */ 100 #define D_PKTBAD 0x0040 /* Malformed packet */ 101 #define D_LINKNOTE 0x0080 /* Link up/down notifications */ 102 /* 103 * Need a common header file that defines the 2 constants below. 104 * Many applications need them. 105 */ 106 #define IF_SEPARATOR ':' 107 #define IPV6_MAX_HOPS 255 108 109 /* 110 * General parameters for phyint failure/repair detection 111 */ 112 #define NUM_PROBE_FAILS 5 /* NUM_PROBE_FAILS probe failures */ 113 /* trigger NIC failure detection */ 114 #define NUM_PROBE_REPAIRS 10 /* NUM_PROBE_REPAIRS probe repairs */ 115 /* trigger NIC repair detection */ 116 117 #define MIN_RANDOM_FACTOR 0.5 /* Randomization factors to */ 118 #define MAX_RANDOM_FACTOR 1.0 /* determine probe send time */ 119 120 #define MIN_PROBE_TARGETS 3 /* Minimum number of targets */ 121 #define MAX_PROBE_TARGETS 5 /* Maximum number of targets */ 122 123 /* 124 * A target that is declared slow is usable again after MIN_RECOVERY_TIME ns 125 */ 126 #define MIN_RECOVERY_TIME (60000000000LL) /* (In ns) 60 secs */ 127 128 /* 129 * If the Failure Detection Time (FDT) is bumped up because the target CRTT 130 * is high, it won't be reduced for the next MIN_SETTLING_TIME ns, to prevent 131 * flapping of FDT 132 */ 133 #define MIN_SETTLING_TIME (60000000000LL) /* (In ns) 60 secs */ 134 135 /* 136 * An admin or script might place a phyint in a group before assigning a test 137 * address. To give them time to configure a test address, we delay whining 138 * about it being missing for TESTADDR_CONF_TIME seconds. 139 */ 140 #define TESTADDR_CONF_TIME 20 141 142 /* 143 * The circular probe stats array should be able to hold enough 144 * samples to detect phyint failure, target failure, phyint repair 145 * and target repair. 146 */ 147 #define PROBE_STATS_COUNT \ 148 ((uint16_t)(NUM_PROBE_REPAIRS * MAX_PROBE_TARGETS + 2)) 149 150 #define FAILURE_DETECTION_TIME 10000 /* Default is 10 s */ 151 #define MIN_FAILURE_DETECTION_TIME 100 /* Minimum is 100 ms */ 152 #define FAILURE_DETECTION_QP 40 /* quiet period, in seconds */ 153 154 #define NEXT_FDT_MULTIPLE 2 /* Raise or lower the FDT by this */ 155 /* factor when required */ 156 #define LOWER_FDT_TRIGGER 4 /* Lower the FDT if crtt is less */ 157 /* than FDT / LOWER_FDT_TRIGGER */ 158 #define EXCEPTION_FACTOR 2 /* The exception target has a crtt */ 159 /* greater by this factor */ 160 161 #define IF_SCAN_INTERVAL 20000 /* Do initifs() every 20 secs */ 162 163 /* Return a random number from a range inclusive of the endpoints */ 164 #define GET_RANDOM(LOW, HIGH) (random() % ((HIGH) - (LOW) + 1) + (LOW)) 165 166 #define TIMER_INFINITY 0x7FFFFFFFU /* Never time out */ 167 168 /* 169 * Comparing unsigned 32 bit time values in a circular 32-bit sequence space 170 */ 171 #define TIME_GE(a, b) ((int32_t)((a) - (b)) >= 0) 172 #define TIME_GT(a, b) ((int32_t)((a) - (b)) > 0) 173 #define TIME_LT(a, b) ((int32_t)((a) - (b)) < 0) 174 #define TIME_LE(a, b) ((int32_t)((a) - (b)) <= 0) 175 176 /* 177 * Comparing unsigned 16 bit sequence numbers in a circular 16-bit 178 * sequence space 179 */ 180 #define SEQ_GE(a, b) ((int16_t)((a) - (b)) >= (int16_t)0) 181 #define SEQ_GT(a, b) ((int16_t)((a) - (b)) > (int16_t)0) 182 #define SEQ_LT(a, b) ((int16_t)((a) - (b)) < (int16_t)0) 183 #define SEQ_LE(a, b) ((int16_t)((a) - (b)) <= (int16_t)0) 184 185 #define AF_OTHER(af) ((af) == AF_INET ? AF_INET6 : AF_INET) 186 #define AF_STR(af) ((af) == AF_INET ? "inet" : "inet6") 187 188 /* 189 * Globals 190 */ 191 extern boolean_t failback_enabled; /* cmd option to disable failbacks */ 192 extern boolean_t track_all_phyints; /* cmd option to track all phyints */ 193 194 /* all times below in millisec */ 195 extern int user_probe_interval; /* interval between probes, as */ 196 /* derived from user specified fdt */ 197 extern int user_failure_detection_time; /* User specified fdt */ 198 199 extern int ifsock_v4; /* IPv4 socket for ioctls */ 200 extern int ifsock_v6; /* IPv6 socket for ioctls */ 201 202 extern int debug; /* debug option */ 203 extern boolean_t cleanup_started; /* true if we're shutting down */ 204 extern boolean_t handle_link_notifications; 205 206 /* 207 * Function prototypes 208 */ 209 extern void timer_schedule(uint_t delay); 210 extern void logmsg(int pri, const char *fmt, ...); 211 extern void logperror(const char *str); 212 extern int poll_add(int fd); 213 extern int poll_remove(int fd); 214 extern uint64_t getcurrentsec(void); 215 extern uint_t getcurrenttime(void); 216 217 #define logerr(...) logmsg(LOG_ERR, __VA_ARGS__) 218 #define logtrace(...) logmsg(LOG_INFO, __VA_ARGS__) 219 #define logdebug(...) logmsg(LOG_DEBUG, __VA_ARGS__) 220 221 #ifdef __cplusplus 222 } 223 #endif 224 225 #endif /* _MPD_DEFS_H */ 226