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 #include <strings.h> 28 29 #include <inj_event.h> 30 #include <inj_err.h> 31 32 #include <fm/fmd_log.h> 33 34 typedef struct inj_logfile { 35 uint64_t ilf_sec; /* timestamp seconds from previous record */ 36 uint64_t ilf_nsec; /* timestamp nanoseconds from previous record */ 37 int ilf_index; /* record index in log file for fake lineno */ 38 } inj_logfile_t; 39 40 /*ARGSUSED*/ 41 static int 42 inj_logfile_event(fmd_log_t *lp, const fmd_log_record_t *rp, void *data) 43 { 44 inj_cmd_t *cmd = inj_zalloc(sizeof (inj_cmd_t)); 45 inj_defn_t *ev = inj_zalloc(sizeof (inj_defn_t)); 46 47 hrtime_t rec_sec = rp->rec_sec + rp->rec_nsec / NANOSEC; 48 hrtime_t rec_nsec = rp->rec_nsec % NANOSEC; 49 50 inj_logfile_t *ilf = data; 51 hrtime_t delta; 52 53 if (ilf->ilf_index == 1) 54 goto add_event; /* do not try to adjust time for first record */ 55 56 /* 57 * If the current record's time is before that of the previous record, 58 * advance it to the previous record time. This may occur when delays 59 * between capturing ENA and enqueuing a sysevent are observed. 60 */ 61 if (rec_sec < ilf->ilf_sec || 62 (rec_sec == ilf->ilf_sec && rec_nsec < ilf->ilf_nsec)) { 63 warn("record [%d] (%s) timestamp is out of order: " 64 "advancing event time to %llx.%llx\n", 65 ilf->ilf_index, rp->rec_class, ilf->ilf_sec, ilf->ilf_nsec); 66 rec_sec = ilf->ilf_sec; 67 rec_nsec = ilf->ilf_nsec; 68 } 69 70 /* 71 * For now, compute the delta between the previous record and this one 72 * as a number of nanoseconds and advance the clock. If a massively 73 * large delay is observed (>INT64_MAX ns), we abort. This could be 74 * improved if necessary by sending more than one cmd_addhrt in a loop. 75 */ 76 delta = (rec_sec - ilf->ilf_sec) * NANOSEC; 77 delta += (hrtime_t)rec_nsec - (hrtime_t)ilf->ilf_nsec; 78 79 if (delta < 0) 80 die("record [%d] timestamp delta too large\n", ilf->ilf_index); 81 82 if (delta > 0) 83 inj_cmds_add(inj_cmd_addhrt(delta)); 84 85 add_event: 86 ev->defn_name = inj_strdup(rp->rec_class); 87 ev->defn_lineno = ilf->ilf_index++; 88 89 if ((errno = nvlist_dup(rp->rec_nvl, &ev->defn_nvl, 0)) != 0) 90 die("failed to allocate nvl for %s event", rp->rec_class); 91 92 cmd->cmd_type = CMD_SEND_EVENT; 93 cmd->cmd_event = ev; 94 95 inj_cmds_add(cmd); 96 97 ilf->ilf_sec = rec_sec; 98 ilf->ilf_nsec = rec_nsec; 99 100 return (0); 101 } 102 103 inj_list_t * 104 inj_logfile_read(fmd_log_t *lp) 105 { 106 const char *label = fmd_log_label(lp); 107 inj_logfile_t ilf; 108 109 if (strcmp(label, "error") != 0) 110 die("cannot use '%s' log as injector input\n", label); 111 112 bzero(&ilf, sizeof (ilf)); 113 ilf.ilf_index = 1; 114 115 if (fmd_log_iter(lp, inj_logfile_event, &ilf) != 0) { 116 die("failed to process log: %s\n", 117 fmd_log_errmsg(lp, fmd_log_errno(lp))); 118 } 119 120 return (inj_cmds_get()); 121 } 122