From b301516615c441bd3cc4b512fae73fc066d227f1 Mon Sep 17 00:00:00 2001 From: Mateusz Grzonka Date: Thu, 2 Feb 2023 12:26:59 +0100 Subject: [PATCH 087/125] Mdmonitor: Make alert_info global Move information about --test flag and hostname into alert_info. Signed-off-by: Mateusz Grzonka Signed-off-by: Jes Sorensen --- Monitor.c | 124 +++++++++++++++++++++++++++--------------------------- 1 file changed, 61 insertions(+), 63 deletions(-) diff --git a/Monitor.c b/Monitor.c index 188cb8be..9ef4dab8 100644 --- a/Monitor.c +++ b/Monitor.c @@ -58,21 +58,20 @@ struct state { }; struct alert_info { + char hostname[HOST_NAME_MAX]; char *mailaddr; char *mailfrom; char *alert_cmd; int dosyslog; -}; + int test; +} info; static int make_daemon(char *pidfile); static int check_one_sharer(int scan); static void write_autorebuild_pid(void); -static void alert(const char *event, const char *dev, const char *disc, struct alert_info *info); -static int check_array(struct state *st, struct mdstat_ent *mdstat, - int test, struct alert_info *info, - int increments, char *prefer); -static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist, - int test, struct alert_info *info); -static void try_spare_migration(struct state *statelist, struct alert_info *info); +static void alert(const char *event, const char *dev, const char *disc); +static int check_array(struct state *st, struct mdstat_ent *mdstat, int increments, char *prefer); +static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist); +static void try_spare_migration(struct state *statelist); static void link_containers_with_subarrays(struct state *list); static void free_statelist(struct state *statelist); #ifndef NO_LIBUDEV @@ -132,7 +131,6 @@ int Monitor(struct mddev_dev *devlist, int finished = 0; struct mdstat_ent *mdstat = NULL; char *mailfrom; - struct alert_info info; struct mddev_ident *mdlist; int delay_for_event = c->delay; @@ -166,6 +164,13 @@ int Monitor(struct mddev_dev *devlist, info.mailaddr = mailaddr; info.mailfrom = mailfrom; info.dosyslog = dosyslog; + info.test = c->test; + + if (gethostname(info.hostname, sizeof(info.hostname)) != 0) { + pr_err("Cannot get hostname.\n"); + return 1; + } + info.hostname[sizeof(info.hostname) - 1] = '\0'; if (share){ if (check_one_sharer(c->scan)) @@ -241,8 +246,7 @@ int Monitor(struct mddev_dev *devlist, mdstat = mdstat_read(oneshot ? 0 : 1, 0); for (st = statelist; st; st = st->next) { - if (check_array(st, mdstat, c->test, &info, - increments, c->prefer)) + if (check_array(st, mdstat, increments, c->prefer)) anydegraded = 1; /* for external arrays, metadata is filled for * containers only @@ -255,15 +259,14 @@ int Monitor(struct mddev_dev *devlist, /* now check if there are any new devices found in mdstat */ if (c->scan) - new_found = add_new_arrays(mdstat, &statelist, c->test, - &info); + new_found = add_new_arrays(mdstat, &statelist); /* If an array has active < raid && spare == 0 && spare_group != NULL * Look for another array with spare > 0 and active == raid and same spare_group * if found, choose a device and hotremove/hotadd */ if (share && anydegraded) - try_spare_migration(statelist, &info); + try_spare_migration(statelist); if (!new_found) { if (oneshot) break; @@ -294,7 +297,7 @@ int Monitor(struct mddev_dev *devlist, mdstat_close(); } } - c->test = 0; + info.test = 0; for (stp = &statelist; (st = *stp) != NULL; ) { if (st->from_auto && st->err > 5) { @@ -412,7 +415,7 @@ static void write_autorebuild_pid() } } -static void execute_alert_cmd(const char *event, const char *dev, const char *disc, struct alert_info *info) +static void execute_alert_cmd(const char *event, const char *dev, const char *disc) { int pid = fork(); @@ -424,15 +427,14 @@ static void execute_alert_cmd(const char *event, const char *dev, const char *di pr_err("Cannot fork to execute alert command"); break; case 0: - execl(info->alert_cmd, info->alert_cmd, event, dev, disc, NULL); + execl(info.alert_cmd, info.alert_cmd, event, dev, disc, NULL); exit(2); } } -static void send_event_email(const char *event, const char *dev, const char *disc, struct alert_info *info) +static void send_event_email(const char *event, const char *dev, const char *disc) { FILE *mp, *mdstat; - char hname[256]; char buf[BUFSIZ]; int n; @@ -442,14 +444,13 @@ static void send_event_email(const char *event, const char *dev, const char *dis return; } - gethostname(hname, sizeof(hname)); signal(SIGPIPE, SIG_IGN); - if (info->mailfrom) - fprintf(mp, "From: %s\n", info->mailfrom); + if (info.mailfrom) + fprintf(mp, "From: %s\n", info.mailfrom); else fprintf(mp, "From: %s monitoring \n", Name); - fprintf(mp, "To: %s\n", info->mailaddr); - fprintf(mp, "Subject: %s event on %s:%s\n\n", event, dev, hname); + fprintf(mp, "To: %s\n", info.mailaddr); + fprintf(mp, "Subject: %s event on %s:%s\n\n", event, dev, info.hostname); fprintf(mp, "This is an automatically generated mail message. \n"); fprintf(mp, "A %s event had been detected on md device %s.\n\n", event, dev); @@ -501,37 +502,36 @@ static void log_event_to_syslog(const char *event, const char *dev, const char * syslog(priority, "%s event detected on md device %s", event, dev); } -static void alert(const char *event, const char *dev, const char *disc, struct alert_info *info) +static void alert(const char *event, const char *dev, const char *disc) { - if (!info->alert_cmd && !info->mailaddr && !info->dosyslog) { + if (!info.alert_cmd && !info.mailaddr && !info.dosyslog) { time_t now = time(0); printf("%1.15s: %s on %s %s\n", ctime(&now) + 4, event, dev, disc?disc:"unknown device"); } - if (info->alert_cmd) - execute_alert_cmd(event, dev, disc, info); + if (info.alert_cmd) + execute_alert_cmd(event, dev, disc); - if (info->mailaddr && (strncmp(event, "Fail", 4) == 0 || + if (info.mailaddr && (strncmp(event, "Fail", 4) == 0 || strncmp(event, "Test", 4) == 0 || strncmp(event, "Spares", 6) == 0 || strncmp(event, "Degrade", 7) == 0)) { - send_event_email(event, dev, disc, info); + send_event_email(event, dev, disc); } - if (info->dosyslog) + if (info.dosyslog) log_event_to_syslog(event, dev, disc); } static int check_array(struct state *st, struct mdstat_ent *mdstat, - int test, struct alert_info *ainfo, int increments, char *prefer) { /* Update the state 'st' to reflect any changes shown in mdstat, * or found by directly examining the array, and return * '1' if the array is degraded, or '0' if it is optimal (or dead). */ - struct { int state, major, minor; } info[MAX_DISKS]; + struct { int state, major, minor; } disks_info[MAX_DISKS]; struct mdinfo *sra = NULL; mdu_array_info_t array; struct mdstat_ent *mse = NULL, *mse2; @@ -545,8 +545,8 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat, int is_container = 0; unsigned long redundancy_only_flags = 0; - if (test) - alert("TestMessage", dev, NULL, ainfo); + if (info.test) + alert("TestMessage", dev, NULL); retval = 0; @@ -595,7 +595,7 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat, */ if (sra->array.level == 0 || sra->array.level == -1) { if (!st->err && !st->from_config) - alert("DeviceDisappeared", dev, " Wrong-Level", ainfo); + alert("DeviceDisappeared", dev, " Wrong-Level"); st->err++; goto out; } @@ -612,7 +612,7 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat, st->percent = RESYNC_NONE; new_array = 1; if (!is_container) - alert("NewArray", st->devname, NULL, ainfo); + alert("NewArray", st->devname, NULL); } if (st->utime == array.utime && st->failed == sra->array.failed_disks && @@ -625,14 +625,14 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat, } if (st->utime == 0 && /* new array */ mse->pattern && strchr(mse->pattern, '_') /* degraded */) - alert("DegradedArray", dev, NULL, ainfo); + alert("DegradedArray", dev, NULL); if (st->utime == 0 && /* new array */ st->expected_spares > 0 && sra->array.spare_disks < st->expected_spares) - alert("SparesMissing", dev, NULL, ainfo); + alert("SparesMissing", dev, NULL); if (st->percent < 0 && st->percent != RESYNC_UNKNOWN && mse->percent >= 0) - alert("RebuildStarted", dev, NULL, ainfo); + alert("RebuildStarted", dev, NULL); if (st->percent >= 0 && mse->percent >= 0 && (mse->percent / increments) > (st->percent / increments)) { char percentalert[18]; @@ -647,7 +647,7 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat, snprintf(percentalert, sizeof(percentalert), "Rebuild%02d", mse->percent); - alert(percentalert, dev, NULL, ainfo); + alert(percentalert, dev, NULL); } if (mse->percent == RESYNC_NONE && st->percent >= 0) { @@ -660,9 +660,9 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat, snprintf(cnt, sizeof(cnt), " mismatches found: %d (on raid level %d)", sra->mismatch_cnt, sra->array.level); - alert("RebuildFinished", dev, cnt, ainfo); + alert("RebuildFinished", dev, cnt); } else - alert("RebuildFinished", dev, NULL, ainfo); + alert("RebuildFinished", dev, NULL); } st->percent = mse->percent; @@ -671,13 +671,13 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat, mdu_disk_info_t disc; disc.number = i; if (md_get_disk_info(fd, &disc) >= 0) { - info[i].state = disc.state; - info[i].major = disc.major; - info[i].minor = disc.minor; + disks_info[i].state = disc.state; + disks_info[i].major = disc.major; + disks_info[i].minor = disc.minor; if (disc.major || disc.minor) remaining_disks --; } else - info[i].major = info[i].minor = 0; + disks_info[i].major = disks_info[i].minor = 0; } last_disk = i; @@ -700,13 +700,13 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat, int change; char *dv = NULL; disc.number = i; - if (i < last_disk && (info[i].major || info[i].minor)) { - newstate = info[i].state; - dv = map_dev_preferred(info[i].major, info[i].minor, 1, + if (i < last_disk && (disks_info[i].major || disks_info[i].minor)) { + newstate = disks_info[i].state; + dv = map_dev_preferred(disks_info[i].major, disks_info[i].minor, 1, prefer); disc.state = newstate; - disc.major = info[i].major; - disc.minor = info[i].minor; + disc.major = disks_info[i].major; + disc.minor = disks_info[i].minor; } else newstate = (1 << MD_DISK_REMOVED); @@ -716,14 +716,14 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat, change = newstate ^ st->devstate[i]; if (st->utime && change && !st->err && !new_array) { if ((st->devstate[i]&change) & (1 << MD_DISK_SYNC)) - alert("Fail", dev, dv, ainfo); + alert("Fail", dev, dv); else if ((newstate & (1 << MD_DISK_FAULTY)) && (disc.major || disc.minor) && st->devid[i] == makedev(disc.major, disc.minor)) - alert("FailSpare", dev, dv, ainfo); + alert("FailSpare", dev, dv); else if ((newstate&change) & (1 << MD_DISK_SYNC)) - alert("SpareActive", dev, dv, ainfo); + alert("SpareActive", dev, dv); } st->devstate[i] = newstate; st->devid[i] = makedev(disc.major, disc.minor); @@ -747,13 +747,12 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat, disappeared: if (!st->err && !is_container) - alert("DeviceDisappeared", dev, NULL, ainfo); + alert("DeviceDisappeared", dev, NULL); st->err++; goto out; } -static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist, - int test, struct alert_info *info) +static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist) { struct mdstat_ent *mse; int new_found = 0; @@ -806,8 +805,8 @@ static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist, } else st->parent_devnm[0] = 0; *statelist = st; - if (test) - alert("TestMessage", st->devname, NULL, info); + if (info.test) + alert("TestMessage", st->devname, NULL); new_found = 1; } return new_found; @@ -971,7 +970,7 @@ static dev_t container_choose_spare(struct state *from, struct state *to, return dev; } -static void try_spare_migration(struct state *statelist, struct alert_info *info) +static void try_spare_migration(struct state *statelist) { struct state *from; struct state *st; @@ -1030,8 +1029,7 @@ static void try_spare_migration(struct state *statelist, struct alert_info *info if (devid > 0 && move_spare(from->devname, to->devname, devid)) { - alert("MoveSpare", to->devname, - from->devname, info); + alert("MoveSpare", to->devname, from->devname); break; } } -- 2.38.1