diff options
Diffstat (limited to 'sys/contrib/openzfs/cmd/zed/agents/fmd_api.c')
| -rw-r--r-- | sys/contrib/openzfs/cmd/zed/agents/fmd_api.c | 777 |
1 files changed, 777 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/cmd/zed/agents/fmd_api.c b/sys/contrib/openzfs/cmd/zed/agents/fmd_api.c new file mode 100644 index 000000000000..103bc33f0c20 --- /dev/null +++ b/sys/contrib/openzfs/cmd/zed/agents/fmd_api.c @@ -0,0 +1,777 @@ +// SPDX-License-Identifier: CDDL-1.0 +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (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 https://opensource.org/licenses/CDDL-1.0. + * 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 (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. + * + * Copyright (c) 2016, Intel Corporation. + * Copyright (c) 2023, Klara Inc. + */ + +/* + * This file implements the minimal FMD module API required to support the + * fault logic modules in ZED. This support includes module registration, + * memory allocation, module property accessors, basic case management, + * one-shot timers and SERD engines. + * + * In the ZED runtime, the modules are called from a single thread so no + * locking is required in this emulated FMD environment. + */ + +#include <sys/types.h> +#include <sys/fm/protocol.h> +#include <uuid/uuid.h> +#include <signal.h> +#include <string.h> +#include <time.h> + +#include "fmd_api.h" +#include "fmd_serd.h" + +#include "zfs_agents.h" +#include "../zed_log.h" + +typedef struct fmd_modstat { + fmd_stat_t ms_accepted; /* total events accepted by module */ + fmd_stat_t ms_caseopen; /* cases currently open */ + fmd_stat_t ms_casesolved; /* total cases solved by module */ + fmd_stat_t ms_caseclosed; /* total cases closed by module */ +} fmd_modstat_t; + +typedef struct fmd_module { + const char *mod_name; /* basename of module (ro) */ + const fmd_hdl_info_t *mod_info; /* module info registered with handle */ + void *mod_spec; /* fmd_hdl_get/setspecific data value */ + fmd_stat_t *mod_ustat; /* module specific custom stats */ + uint_t mod_ustat_cnt; /* count of ustat stats */ + fmd_modstat_t mod_stats; /* fmd built-in per-module statistics */ + fmd_serd_hash_t mod_serds; /* hash of serd engs owned by module */ + char *mod_vers; /* a copy of module version string */ +} fmd_module_t; + +/* + * ZED has two FMD hardwired module instances + */ +fmd_module_t zfs_retire_module; +fmd_module_t zfs_diagnosis_module; + +/* + * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. + */ + +#ifdef DEBUG +const char * +_umem_debug_init(void) +{ + return ("default,verbose"); /* $UMEM_DEBUG setting */ +} + +const char * +_umem_logging_init(void) +{ + return ("fail,contents"); /* $UMEM_LOGGING setting */ +} +#endif + +/* + * Register a module with fmd and finish module initialization. + * Returns an integer indicating whether it succeeded (zero) or + * failed (non-zero). + */ +int +fmd_hdl_register(fmd_hdl_t *hdl, int version, const fmd_hdl_info_t *mip) +{ + (void) version; + fmd_module_t *mp = (fmd_module_t *)hdl; + + mp->mod_info = mip; + mp->mod_name = mip->fmdi_desc + 4; /* drop 'ZFS ' prefix */ + mp->mod_spec = NULL; + + /* bare minimum module stats */ + (void) strcpy(mp->mod_stats.ms_accepted.fmds_name, "fmd.accepted"); + (void) strcpy(mp->mod_stats.ms_caseopen.fmds_name, "fmd.caseopen"); + (void) strcpy(mp->mod_stats.ms_casesolved.fmds_name, "fmd.casesolved"); + (void) strcpy(mp->mod_stats.ms_caseclosed.fmds_name, "fmd.caseclosed"); + + fmd_serd_hash_create(&mp->mod_serds); + + fmd_hdl_debug(hdl, "register module"); + + return (0); +} + +void +fmd_hdl_unregister(fmd_hdl_t *hdl) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + fmd_modstat_t *msp = &mp->mod_stats; + const fmd_hdl_ops_t *ops = mp->mod_info->fmdi_ops; + + /* dump generic module stats */ + fmd_hdl_debug(hdl, "%s: %llu", msp->ms_accepted.fmds_name, + msp->ms_accepted.fmds_value.ui64); + if (ops->fmdo_close != NULL) { + fmd_hdl_debug(hdl, "%s: %llu", msp->ms_caseopen.fmds_name, + msp->ms_caseopen.fmds_value.ui64); + fmd_hdl_debug(hdl, "%s: %llu", msp->ms_casesolved.fmds_name, + msp->ms_casesolved.fmds_value.ui64); + fmd_hdl_debug(hdl, "%s: %llu", msp->ms_caseclosed.fmds_name, + msp->ms_caseclosed.fmds_value.ui64); + } + + /* dump module specific stats */ + if (mp->mod_ustat != NULL) { + int i; + + for (i = 0; i < mp->mod_ustat_cnt; i++) { + fmd_hdl_debug(hdl, "%s: %llu", + mp->mod_ustat[i].fmds_name, + mp->mod_ustat[i].fmds_value.ui64); + } + } + + fmd_serd_hash_destroy(&mp->mod_serds); + + fmd_hdl_debug(hdl, "unregister module"); +} + +/* + * fmd_hdl_setspecific() is used to associate a data pointer with + * the specified handle for the duration of the module's lifetime. + * This pointer can be retrieved using fmd_hdl_getspecific(). + */ +void +fmd_hdl_setspecific(fmd_hdl_t *hdl, void *spec) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + + mp->mod_spec = spec; +} + +/* + * Return the module-specific data pointer previously associated + * with the handle using fmd_hdl_setspecific(). + */ +void * +fmd_hdl_getspecific(fmd_hdl_t *hdl) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + + return (mp->mod_spec); +} + +void * +fmd_hdl_alloc(fmd_hdl_t *hdl, size_t size, int flags) +{ + (void) hdl; + return (umem_alloc(size, flags)); +} + +void * +fmd_hdl_zalloc(fmd_hdl_t *hdl, size_t size, int flags) +{ + (void) hdl; + return (umem_zalloc(size, flags)); +} + +void +fmd_hdl_free(fmd_hdl_t *hdl, void *data, size_t size) +{ + (void) hdl; + umem_free(data, size); +} + +/* + * Record a module debug message using the specified format. + */ +void +fmd_hdl_debug(fmd_hdl_t *hdl, const char *format, ...) +{ + char message[256]; + va_list vargs; + fmd_module_t *mp = (fmd_module_t *)hdl; + + va_start(vargs, format); + (void) vsnprintf(message, sizeof (message), format, vargs); + va_end(vargs); + + /* prefix message with module name */ + zed_log_msg(LOG_INFO, "%s: %s", mp->mod_name, message); +} + +/* Property Retrieval */ + +int32_t +fmd_prop_get_int32(fmd_hdl_t *hdl, const char *name) +{ + (void) hdl; + + /* + * These can be looked up in mp->modinfo->fmdi_props + * For now we just hard code for phase 2. In the + * future, there can be a ZED based override. + */ + if (strcmp(name, "spare_on_remove") == 0) + return (1); + + return (0); +} + +/* FMD Statistics */ + +fmd_stat_t * +fmd_stat_create(fmd_hdl_t *hdl, uint_t flags, uint_t nstats, fmd_stat_t *statv) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + + if (flags == FMD_STAT_NOALLOC) { + mp->mod_ustat = statv; + mp->mod_ustat_cnt = nstats; + } + + return (statv); +} + +/* Case Management */ + +fmd_case_t * +fmd_case_open(fmd_hdl_t *hdl, void *data) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + uuid_t uuid; + + fmd_case_t *cp; + + cp = fmd_hdl_zalloc(hdl, sizeof (fmd_case_t), FMD_SLEEP); + cp->ci_mod = hdl; + cp->ci_state = FMD_CASE_UNSOLVED; + cp->ci_flags = FMD_CF_DIRTY; + cp->ci_data = data; + cp->ci_bufptr = NULL; + cp->ci_bufsiz = 0; + + uuid_generate(uuid); + uuid_unparse(uuid, cp->ci_uuid); + + fmd_hdl_debug(hdl, "case opened (%s)", cp->ci_uuid); + mp->mod_stats.ms_caseopen.fmds_value.ui64++; + + return (cp); +} + +void +fmd_case_solve(fmd_hdl_t *hdl, fmd_case_t *cp) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + + /* + * For ZED, the event was already sent from fmd_case_add_suspect() + */ + + if (cp->ci_state >= FMD_CASE_SOLVED) + fmd_hdl_debug(hdl, "case is already solved or closed"); + + cp->ci_state = FMD_CASE_SOLVED; + + fmd_hdl_debug(hdl, "case solved (%s)", cp->ci_uuid); + mp->mod_stats.ms_casesolved.fmds_value.ui64++; +} + +void +fmd_case_close(fmd_hdl_t *hdl, fmd_case_t *cp) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + const fmd_hdl_ops_t *ops = mp->mod_info->fmdi_ops; + + fmd_hdl_debug(hdl, "case closed (%s)", cp->ci_uuid); + + if (ops->fmdo_close != NULL) + ops->fmdo_close(hdl, cp); + + mp->mod_stats.ms_caseopen.fmds_value.ui64--; + mp->mod_stats.ms_caseclosed.fmds_value.ui64++; + + if (cp->ci_bufptr != NULL && cp->ci_bufsiz > 0) + fmd_hdl_free(hdl, cp->ci_bufptr, cp->ci_bufsiz); + + fmd_hdl_free(hdl, cp, sizeof (fmd_case_t)); +} + +void +fmd_case_uuresolved(fmd_hdl_t *hdl, const char *uuid) +{ + fmd_hdl_debug(hdl, "case resolved by uuid (%s)", uuid); +} + +boolean_t +fmd_case_solved(fmd_hdl_t *hdl, fmd_case_t *cp) +{ + (void) hdl; + return (cp->ci_state >= FMD_CASE_SOLVED); +} + +void +fmd_case_add_ereport(fmd_hdl_t *hdl, fmd_case_t *cp, fmd_event_t *ep) +{ + (void) hdl, (void) cp, (void) ep; +} + +static void +zed_log_fault(nvlist_t *nvl, const char *uuid, const char *code) +{ + nvlist_t *rsrc; + const char *strval; + uint64_t guid; + uint8_t byte; + + zed_log_msg(LOG_INFO, "\nzed_fault_event:"); + + if (uuid != NULL) + zed_log_msg(LOG_INFO, "\t%s: %s", FM_SUSPECT_UUID, uuid); + if (nvlist_lookup_string(nvl, FM_CLASS, &strval) == 0) + zed_log_msg(LOG_INFO, "\t%s: %s", FM_CLASS, strval); + if (code != NULL) + zed_log_msg(LOG_INFO, "\t%s: %s", FM_SUSPECT_DIAG_CODE, code); + if (nvlist_lookup_uint8(nvl, FM_FAULT_CERTAINTY, &byte) == 0) + zed_log_msg(LOG_INFO, "\t%s: %hhu", FM_FAULT_CERTAINTY, byte); + if (nvlist_lookup_nvlist(nvl, FM_FAULT_RESOURCE, &rsrc) == 0) { + if (nvlist_lookup_string(rsrc, FM_FMRI_SCHEME, &strval) == 0) + zed_log_msg(LOG_INFO, "\t%s: %s", FM_FMRI_SCHEME, + strval); + if (nvlist_lookup_uint64(rsrc, FM_FMRI_ZFS_POOL, &guid) == 0) + zed_log_msg(LOG_INFO, "\t%s: %llu", FM_FMRI_ZFS_POOL, + guid); + if (nvlist_lookup_uint64(rsrc, FM_FMRI_ZFS_VDEV, &guid) == 0) + zed_log_msg(LOG_INFO, "\t%s: %llu \n", FM_FMRI_ZFS_VDEV, + guid); + } +} + +static const char * +fmd_fault_mkcode(nvlist_t *fault) +{ + const char *class; + const char *code = "-"; + + /* + * Note: message codes come from: openzfs/usr/src/cmd/fm/dicts/ZFS.po + */ + if (nvlist_lookup_string(fault, FM_CLASS, &class) == 0) { + if (strcmp(class, "fault.fs.zfs.vdev.io") == 0) + code = "ZFS-8000-FD"; + else if (strcmp(class, "fault.fs.zfs.vdev.checksum") == 0) + code = "ZFS-8000-GH"; + else if (strcmp(class, "fault.fs.zfs.io_failure_wait") == 0) + code = "ZFS-8000-HC"; + else if (strcmp(class, "fault.fs.zfs.io_failure_continue") == 0) + code = "ZFS-8000-JQ"; + else if (strcmp(class, "fault.fs.zfs.log_replay") == 0) + code = "ZFS-8000-K4"; + else if (strcmp(class, "fault.fs.zfs.pool") == 0) + code = "ZFS-8000-CS"; + else if (strcmp(class, "fault.fs.zfs.device") == 0) + code = "ZFS-8000-D3"; + + } + return (code); +} + +void +fmd_case_add_suspect(fmd_hdl_t *hdl, fmd_case_t *cp, nvlist_t *fault) +{ + nvlist_t *nvl; + const char *code = fmd_fault_mkcode(fault); + int64_t tod[2]; + int err = 0; + + /* + * payload derived from fmd_protocol_list() + */ + + (void) gettimeofday(&cp->ci_tv, NULL); + tod[0] = cp->ci_tv.tv_sec; + tod[1] = cp->ci_tv.tv_usec; + + nvl = fmd_nvl_alloc(hdl, FMD_SLEEP); + + err |= nvlist_add_uint8(nvl, FM_VERSION, FM_SUSPECT_VERSION); + err |= nvlist_add_string(nvl, FM_CLASS, FM_LIST_SUSPECT_CLASS); + err |= nvlist_add_string(nvl, FM_SUSPECT_UUID, cp->ci_uuid); + err |= nvlist_add_string(nvl, FM_SUSPECT_DIAG_CODE, code); + err |= nvlist_add_int64_array(nvl, FM_SUSPECT_DIAG_TIME, tod, 2); + err |= nvlist_add_uint32(nvl, FM_SUSPECT_FAULT_SZ, 1); + err |= nvlist_add_nvlist_array(nvl, FM_SUSPECT_FAULT_LIST, + (const nvlist_t **)&fault, 1); + + if (err) + zed_log_die("failed to populate nvlist"); + + zed_log_fault(fault, cp->ci_uuid, code); + zfs_agent_post_event(FM_LIST_SUSPECT_CLASS, NULL, nvl); + + nvlist_free(nvl); + nvlist_free(fault); +} + +void +fmd_case_setspecific(fmd_hdl_t *hdl, fmd_case_t *cp, void *data) +{ + (void) hdl; + cp->ci_data = data; +} + +void * +fmd_case_getspecific(fmd_hdl_t *hdl, fmd_case_t *cp) +{ + (void) hdl; + return (cp->ci_data); +} + +void +fmd_buf_create(fmd_hdl_t *hdl, fmd_case_t *cp, const char *name, size_t size) +{ + assert(strcmp(name, "data") == 0), (void) name; + assert(cp->ci_bufptr == NULL); + assert(size < (1024 * 1024)); + + cp->ci_bufptr = fmd_hdl_alloc(hdl, size, FMD_SLEEP); + cp->ci_bufsiz = size; +} + +void +fmd_buf_read(fmd_hdl_t *hdl, fmd_case_t *cp, + const char *name, void *buf, size_t size) +{ + (void) hdl; + assert(strcmp(name, "data") == 0), (void) name; + assert(cp->ci_bufptr != NULL); + assert(size <= cp->ci_bufsiz); + + memcpy(buf, cp->ci_bufptr, size); +} + +void +fmd_buf_write(fmd_hdl_t *hdl, fmd_case_t *cp, + const char *name, const void *buf, size_t size) +{ + (void) hdl; + assert(strcmp(name, "data") == 0), (void) name; + assert(cp->ci_bufptr != NULL); + assert(cp->ci_bufsiz >= size); + + memcpy(cp->ci_bufptr, buf, size); +} + +/* SERD Engines */ + +void +fmd_serd_create(fmd_hdl_t *hdl, const char *name, uint_t n, hrtime_t t) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + + if (fmd_serd_eng_lookup(&mp->mod_serds, name) != NULL) { + zed_log_msg(LOG_ERR, "failed to create SERD engine '%s': " + " name already exists", name); + return; + } + + (void) fmd_serd_eng_insert(&mp->mod_serds, name, n, t); +} + +void +fmd_serd_destroy(fmd_hdl_t *hdl, const char *name) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + + fmd_serd_eng_delete(&mp->mod_serds, name); + + fmd_hdl_debug(hdl, "serd_destroy %s", name); +} + +int +fmd_serd_exists(fmd_hdl_t *hdl, const char *name) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + + return (fmd_serd_eng_lookup(&mp->mod_serds, name) != NULL); +} + +int +fmd_serd_active(fmd_hdl_t *hdl, const char *name) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + fmd_serd_eng_t *sgp; + + if ((sgp = fmd_serd_eng_lookup(&mp->mod_serds, name)) == NULL) { + zed_log_msg(LOG_ERR, "serd engine '%s' does not exist", name); + return (0); + } + return (fmd_serd_eng_fired(sgp) || !fmd_serd_eng_empty(sgp)); +} + +void +fmd_serd_reset(fmd_hdl_t *hdl, const char *name) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + fmd_serd_eng_t *sgp; + + if ((sgp = fmd_serd_eng_lookup(&mp->mod_serds, name)) == NULL) { + zed_log_msg(LOG_ERR, "serd engine '%s' does not exist", name); + } else { + fmd_serd_eng_reset(sgp); + fmd_hdl_debug(hdl, "serd_reset %s", name); + } +} + +int +fmd_serd_record(fmd_hdl_t *hdl, const char *name, fmd_event_t *ep) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + fmd_serd_eng_t *sgp; + + if ((sgp = fmd_serd_eng_lookup(&mp->mod_serds, name)) == NULL) { + zed_log_msg(LOG_ERR, "failed to add record to SERD engine '%s'", + name); + return (0); + } + return (fmd_serd_eng_record(sgp, ep->ev_hrt)); +} + +void +fmd_serd_gc(fmd_hdl_t *hdl) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + + fmd_serd_hash_apply(&mp->mod_serds, fmd_serd_eng_gc, NULL); +} + +/* FMD Timers */ + +static void +_timer_notify(union sigval sv) +{ + fmd_timer_t *ftp = sv.sival_ptr; + fmd_hdl_t *hdl = ftp->ft_hdl; + fmd_module_t *mp = (fmd_module_t *)hdl; + const fmd_hdl_ops_t *ops = mp->mod_info->fmdi_ops; + struct itimerspec its; + + fmd_hdl_debug(hdl, "%s timer fired (%p)", mp->mod_name, ftp->ft_tid); + + /* disarm the timer */ + memset(&its, 0, sizeof (struct itimerspec)); + timer_settime(ftp->ft_tid, 0, &its, NULL); + + /* Note that the fmdo_timeout can remove this timer */ + if (ops->fmdo_timeout != NULL) + ops->fmdo_timeout(hdl, ftp, ftp->ft_arg); +} + +/* + * Install a new timer which will fire at least delta nanoseconds after the + * current time. After the timeout has expired, the module's fmdo_timeout + * entry point is called. + */ +fmd_timer_t * +fmd_timer_install(fmd_hdl_t *hdl, void *arg, fmd_event_t *ep, hrtime_t delta) +{ + (void) ep; + struct sigevent sev; + struct itimerspec its; + fmd_timer_t *ftp; + + ftp = fmd_hdl_alloc(hdl, sizeof (fmd_timer_t), FMD_SLEEP); + ftp->ft_arg = arg; + ftp->ft_hdl = hdl; + + its.it_value.tv_sec = delta / 1000000000; + its.it_value.tv_nsec = delta % 1000000000; + its.it_interval.tv_sec = its.it_value.tv_sec; + its.it_interval.tv_nsec = its.it_value.tv_nsec; + + sev.sigev_notify = SIGEV_THREAD; + sev.sigev_notify_function = _timer_notify; + sev.sigev_notify_attributes = NULL; + sev.sigev_value.sival_ptr = ftp; + sev.sigev_signo = 0; + + timer_create(CLOCK_REALTIME, &sev, &ftp->ft_tid); + timer_settime(ftp->ft_tid, 0, &its, NULL); + + fmd_hdl_debug(hdl, "installing timer for %d secs (%p)", + (int)its.it_value.tv_sec, ftp->ft_tid); + + return (ftp); +} + +void +fmd_timer_remove(fmd_hdl_t *hdl, fmd_timer_t *ftp) +{ + fmd_hdl_debug(hdl, "removing timer (%p)", ftp->ft_tid); + + timer_delete(ftp->ft_tid); + + fmd_hdl_free(hdl, ftp, sizeof (fmd_timer_t)); +} + +/* Name-Value Pair Lists */ + +nvlist_t * +fmd_nvl_create_fault(fmd_hdl_t *hdl, const char *class, uint8_t certainty, + nvlist_t *asru, nvlist_t *fru, nvlist_t *resource) +{ + (void) hdl; + nvlist_t *nvl; + int err = 0; + + if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) + zed_log_die("failed to xalloc fault nvlist"); + + err |= nvlist_add_uint8(nvl, FM_VERSION, FM_FAULT_VERSION); + err |= nvlist_add_string(nvl, FM_CLASS, class); + err |= nvlist_add_uint8(nvl, FM_FAULT_CERTAINTY, certainty); + + if (asru != NULL) + err |= nvlist_add_nvlist(nvl, FM_FAULT_ASRU, asru); + if (fru != NULL) + err |= nvlist_add_nvlist(nvl, FM_FAULT_FRU, fru); + if (resource != NULL) + err |= nvlist_add_nvlist(nvl, FM_FAULT_RESOURCE, resource); + + if (err) + zed_log_die("failed to populate nvlist: %s\n", strerror(err)); + + return (nvl); +} + +/* + * sourced from fmd_string.c + */ +static int +fmd_strmatch(const char *s, const char *p) +{ + char c; + + if (p == NULL) + return (0); + + if (s == NULL) + s = ""; /* treat NULL string as the empty string */ + + do { + if ((c = *p++) == '\0') + return (*s == '\0'); + + if (c == '*') { + while (*p == '*') + p++; /* consecutive *'s can be collapsed */ + + if (*p == '\0') + return (1); + + while (*s != '\0') { + if (fmd_strmatch(s++, p) != 0) + return (1); + } + + return (0); + } + } while (c == *s++); + + return (0); +} + +int +fmd_nvl_class_match(fmd_hdl_t *hdl, nvlist_t *nvl, const char *pattern) +{ + (void) hdl; + const char *class; + + return (nvl != NULL && + nvlist_lookup_string(nvl, FM_CLASS, &class) == 0 && + fmd_strmatch(class, pattern)); +} + +nvlist_t * +fmd_nvl_alloc(fmd_hdl_t *hdl, int flags) +{ + (void) hdl, (void) flags; + nvlist_t *nvl = NULL; + + if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) + return (NULL); + + return (nvl); +} + + +/* + * ZED Agent specific APIs + */ + +fmd_hdl_t * +fmd_module_hdl(const char *name) +{ + if (strcmp(name, "zfs-retire") == 0) + return ((fmd_hdl_t *)&zfs_retire_module); + if (strcmp(name, "zfs-diagnosis") == 0) + return ((fmd_hdl_t *)&zfs_diagnosis_module); + + return (NULL); +} + +boolean_t +fmd_module_initialized(fmd_hdl_t *hdl) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + + return (mp->mod_info != NULL); +} + +/* + * fmd_module_recv is called for each event that is received by + * the fault manager that has a class that matches one of the + * module's subscriptions. + */ +void +fmd_module_recv(fmd_hdl_t *hdl, nvlist_t *nvl, const char *class) +{ + fmd_module_t *mp = (fmd_module_t *)hdl; + const fmd_hdl_ops_t *ops = mp->mod_info->fmdi_ops; + fmd_event_t faux_event = {0}; + int64_t *tv; + uint_t n; + + /* + * Will need to normalized this if we persistently store the case data + */ + if (nvlist_lookup_int64_array(nvl, FM_EREPORT_TIME, &tv, &n) == 0) + faux_event.ev_hrt = tv[0] * NANOSEC + tv[1]; + else + faux_event.ev_hrt = 0; + + ops->fmdo_recv(hdl, &faux_event, nvl, class); + + mp->mod_stats.ms_accepted.fmds_value.ui64++; + + /* TBD - should we initiate fm_module_gc() periodically? */ +} |