Merging upstream version 4.2+20230223.
Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
parent
866376462c
commit
30ed170f74
GPG key ID:
FBB4F0E80A80222F
76 changed files with 2282 additions and 1386 deletions
292
Monitor.c
292
Monitor.c
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@ -26,7 +26,6 @@
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#include "md_p.h"
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#include "md_u.h"
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#include <sys/wait.h>
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#include <signal.h>
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#include <limits.h>
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#include <syslog.h>
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#ifndef NO_LIBUDEV
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@ -34,8 +33,8 @@
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#endif
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struct state {
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char *devname;
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char devnm[32]; /* to sync with mdstat info */
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char devname[MD_NAME_MAX + sizeof("/dev/md/")]; /* length of "/dev/md/" + device name + terminating byte*/
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char devnm[MD_NAME_MAX]; /* to sync with mdstat info */
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unsigned int utime;
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int err;
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char *spare_group;
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@ -46,9 +45,9 @@ struct state {
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int devstate[MAX_DISKS];
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dev_t devid[MAX_DISKS];
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int percent;
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char parent_devnm[32]; /* For subarray, devnm of parent.
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* For others, ""
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*/
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char parent_devnm[MD_NAME_MAX]; /* For subarray, devnm of parent.
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* For others, ""
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*/
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struct supertype *metadata;
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struct state *subarray;/* for a container it is a link to first subarray
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* for a subarray it is a link to next subarray
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@ -67,7 +66,7 @@ struct alert_info {
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static int make_daemon(char *pidfile);
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static int check_one_sharer(int scan);
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static void write_autorebuild_pid(void);
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static void alert(char *event, char *dev, char *disc, struct alert_info *info);
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static void alert(const char *event, const char *dev, const char *disc, struct alert_info *info);
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static int check_array(struct state *st, struct mdstat_ent *mdstat,
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int test, struct alert_info *info,
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int increments, char *prefer);
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@ -75,6 +74,7 @@ static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist,
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int test, struct alert_info *info);
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static void try_spare_migration(struct state *statelist, struct alert_info *info);
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static void link_containers_with_subarrays(struct state *list);
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static void free_statelist(struct state *statelist);
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#ifndef NO_LIBUDEV
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static int check_udev_activity(void);
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#endif
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@ -123,13 +123,12 @@ int Monitor(struct mddev_dev *devlist,
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* and if we can get_disk_info and find a name
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* Then we hot-remove and hot-add to the other array
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*
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* If devlist is NULL, then we can monitor everything because --scan
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* If devlist is NULL, then we can monitor everything if --scan
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* was given. We get an initial list from config file and add anything
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* that appears in /proc/mdstat
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*/
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struct state *statelist = NULL;
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struct state *st2;
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int finished = 0;
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struct mdstat_ent *mdstat = NULL;
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char *mailfrom;
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@ -137,24 +136,32 @@ int Monitor(struct mddev_dev *devlist,
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struct mddev_ident *mdlist;
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int delay_for_event = c->delay;
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if (!mailaddr) {
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mailaddr = conf_get_mailaddr();
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if (mailaddr && ! c->scan)
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pr_err("Monitor using email address \"%s\" from config file\n",
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mailaddr);
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if (devlist && c->scan) {
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pr_err("Devices list and --scan option cannot be combined - not monitoring.\n");
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return 1;
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}
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if (!mailaddr)
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mailaddr = conf_get_mailaddr();
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if (!alert_cmd)
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alert_cmd = conf_get_program();
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mailfrom = conf_get_mailfrom();
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if (!alert_cmd) {
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alert_cmd = conf_get_program();
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if (alert_cmd && !c->scan)
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pr_err("Monitor using program \"%s\" from config file\n",
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alert_cmd);
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}
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if (c->scan && !mailaddr && !alert_cmd && !dosyslog) {
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pr_err("No mail address or alert command - not monitoring.\n");
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return 1;
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}
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if (c->verbose) {
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pr_err("Monitor is started with delay %ds\n", c->delay);
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if (mailaddr)
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pr_err("Monitor using email address %s\n", mailaddr);
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if (alert_cmd)
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pr_err("Monitor using program %s\n", alert_cmd);
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}
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info.alert_cmd = alert_cmd;
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info.mailaddr = mailaddr;
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info.mailfrom = mailfrom;
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@ -183,14 +190,12 @@ int Monitor(struct mddev_dev *devlist,
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continue;
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if (strcasecmp(mdlist->devname, "<ignore>") == 0)
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continue;
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if (!is_mddev(mdlist->devname))
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continue;
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st = xcalloc(1, sizeof *st);
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if (mdlist->devname[0] == '/')
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st->devname = xstrdup(mdlist->devname);
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else {
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st->devname = xmalloc(8+strlen(mdlist->devname)+1);
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strcpy(strcpy(st->devname, "/dev/md/"),
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mdlist->devname);
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}
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snprintf(st->devname, MD_NAME_MAX + sizeof("/dev/md/"),
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"/dev/md/%s", basename(mdlist->devname));
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st->next = statelist;
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st->devnm[0] = 0;
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st->percent = RESYNC_UNKNOWN;
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@ -204,9 +209,14 @@ int Monitor(struct mddev_dev *devlist,
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struct mddev_dev *dv;
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for (dv = devlist; dv; dv = dv->next) {
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struct state *st = xcalloc(1, sizeof *st);
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struct state *st;
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if (!is_mddev(dv->devname))
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continue;
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st = xcalloc(1, sizeof *st);
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mdlist = conf_get_ident(dv->devname);
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st->devname = xstrdup(dv->devname);
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snprintf(st->devname, MD_NAME_MAX + sizeof("/dev/md/"), "%s", dv->devname);
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st->next = statelist;
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st->devnm[0] = 0;
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st->percent = RESYNC_UNKNOWN;
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@ -289,17 +299,16 @@ int Monitor(struct mddev_dev *devlist,
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for (stp = &statelist; (st = *stp) != NULL; ) {
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if (st->from_auto && st->err > 5) {
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*stp = st->next;
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free(st->devname);
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free(st->spare_group);
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if (st->spare_group)
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free(st->spare_group);
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free(st);
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} else
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stp = &st->next;
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}
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}
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for (st2 = statelist; st2; st2 = statelist) {
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statelist = st2->next;
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free(st2);
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}
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free_statelist(statelist);
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if (pidfile)
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unlink(pidfile);
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@ -403,109 +412,115 @@ static void write_autorebuild_pid()
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}
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}
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static void alert(char *event, char *dev, char *disc, struct alert_info *info)
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static void execute_alert_cmd(const char *event, const char *dev, const char *disc, struct alert_info *info)
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{
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int pid = fork();
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switch (pid) {
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default:
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waitpid(pid, NULL, 0);
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break;
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case -1:
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pr_err("Cannot fork to execute alert command");
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break;
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case 0:
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execl(info->alert_cmd, info->alert_cmd, event, dev, disc, NULL);
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exit(2);
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}
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}
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static void send_event_email(const char *event, const char *dev, const char *disc, struct alert_info *info)
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{
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FILE *mp, *mdstat;
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char hname[256];
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char buf[BUFSIZ];
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int n;
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mp = popen(Sendmail, "w");
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if (!mp) {
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pr_err("Cannot open pipe stream for sendmail.\n");
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return;
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}
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gethostname(hname, sizeof(hname));
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signal(SIGPIPE, SIG_IGN);
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if (info->mailfrom)
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fprintf(mp, "From: %s\n", info->mailfrom);
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else
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fprintf(mp, "From: %s monitoring <root>\n", Name);
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fprintf(mp, "To: %s\n", info->mailaddr);
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fprintf(mp, "Subject: %s event on %s:%s\n\n", event, dev, hname);
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fprintf(mp, "This is an automatically generated mail message. \n");
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fprintf(mp, "A %s event had been detected on md device %s.\n\n", event, dev);
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if (disc && disc[0] != ' ')
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fprintf(mp,
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"It could be related to component device %s.\n\n", disc);
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if (disc && disc[0] == ' ')
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fprintf(mp, "Extra information:%s.\n\n", disc);
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mdstat = fopen("/proc/mdstat", "r");
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if (!mdstat) {
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pr_err("Cannot open /proc/mdstat\n");
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pclose(mp);
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return;
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}
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fprintf(mp, "The /proc/mdstat file currently contains the following:\n\n");
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while ((n = fread(buf, 1, sizeof(buf), mdstat)) > 0)
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n = fwrite(buf, 1, n, mp);
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fclose(mdstat);
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pclose(mp);
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}
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static void log_event_to_syslog(const char *event, const char *dev, const char *disc)
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{
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int priority;
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/* Log at a different severity depending on the event.
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*
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* These are the critical events: */
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if (strncmp(event, "Fail", 4) == 0 ||
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strncmp(event, "Degrade", 7) == 0 ||
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strncmp(event, "DeviceDisappeared", 17) == 0)
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priority = LOG_CRIT;
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/* Good to know about, but are not failures: */
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else if (strncmp(event, "Rebuild", 7) == 0 ||
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strncmp(event, "MoveSpare", 9) == 0 ||
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strncmp(event, "Spares", 6) != 0)
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priority = LOG_WARNING;
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/* Everything else: */
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else
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priority = LOG_INFO;
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if (disc && disc[0] != ' ')
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syslog(priority,
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"%s event detected on md device %s, component device %s", event, dev, disc);
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else if (disc)
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syslog(priority, "%s event detected on md device %s: %s", event, dev, disc);
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else
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syslog(priority, "%s event detected on md device %s", event, dev);
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}
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static void alert(const char *event, const char *dev, const char *disc, struct alert_info *info)
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{
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if (!info->alert_cmd && !info->mailaddr && !info->dosyslog) {
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time_t now = time(0);
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printf("%1.15s: %s on %s %s\n", ctime(&now) + 4,
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event, dev, disc?disc:"unknown device");
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}
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if (info->alert_cmd) {
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int pid = fork();
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switch(pid) {
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default:
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waitpid(pid, NULL, 0);
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break;
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case -1:
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break;
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case 0:
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execl(info->alert_cmd, info->alert_cmd,
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event, dev, disc, NULL);
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exit(2);
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}
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}
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if (info->alert_cmd)
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execute_alert_cmd(event, dev, disc, info);
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if (info->mailaddr && (strncmp(event, "Fail", 4) == 0 ||
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strncmp(event, "Test", 4) == 0 ||
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strncmp(event, "Spares", 6) == 0 ||
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strncmp(event, "Degrade", 7) == 0)) {
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FILE *mp = popen(Sendmail, "w");
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if (mp) {
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FILE *mdstat;
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char hname[256];
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gethostname(hname, sizeof(hname));
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signal(SIGPIPE, SIG_IGN);
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if (info->mailfrom)
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fprintf(mp, "From: %s\n", info->mailfrom);
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else
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fprintf(mp, "From: %s monitoring <root>\n",
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Name);
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fprintf(mp, "To: %s\n", info->mailaddr);
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fprintf(mp, "Subject: %s event on %s:%s\n\n",
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event, dev, hname);
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fprintf(mp,
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"This is an automatically generated mail message from %s\n", Name);
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fprintf(mp, "running on %s\n\n", hname);
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fprintf(mp,
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"A %s event had been detected on md device %s.\n\n", event, dev);
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if (disc && disc[0] != ' ')
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fprintf(mp,
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"It could be related to component device %s.\n\n", disc);
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if (disc && disc[0] == ' ')
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fprintf(mp, "Extra information:%s.\n\n", disc);
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fprintf(mp, "Faithfully yours, etc.\n");
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mdstat = fopen("/proc/mdstat", "r");
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if (mdstat) {
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char buf[8192];
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int n;
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fprintf(mp,
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"\nP.S. The /proc/mdstat file currently contains the following:\n\n");
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while ((n = fread(buf, 1, sizeof(buf),
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mdstat)) > 0)
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n = fwrite(buf, 1, n, mp);
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fclose(mdstat);
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}
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pclose(mp);
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}
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send_event_email(event, dev, disc, info);
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}
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/* log the event to syslog maybe */
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if (info->dosyslog) {
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/* Log at a different severity depending on the event.
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*
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* These are the critical events: */
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if (strncmp(event, "Fail", 4) == 0 ||
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strncmp(event, "Degrade", 7) == 0 ||
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strncmp(event, "DeviceDisappeared", 17) == 0)
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priority = LOG_CRIT;
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/* Good to know about, but are not failures: */
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else if (strncmp(event, "Rebuild", 7) == 0 ||
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strncmp(event, "MoveSpare", 9) == 0 ||
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strncmp(event, "Spares", 6) != 0)
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priority = LOG_WARNING;
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/* Everything else: */
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else
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priority = LOG_INFO;
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if (disc && disc[0] != ' ')
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syslog(priority,
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"%s event detected on md device %s, component device %s", event, dev, disc);
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else if (disc)
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syslog(priority,
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"%s event detected on md device %s: %s",
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event, dev, disc);
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else
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syslog(priority,
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"%s event detected on md device %s",
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event, dev);
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}
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if (info->dosyslog)
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log_event_to_syslog(event, dev, disc);
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}
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static int check_array(struct state *st, struct mdstat_ent *mdstat,
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@ -540,7 +555,7 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
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goto disappeared;
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if (st->devnm[0] == 0)
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strcpy(st->devnm, fd2devnm(fd));
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snprintf(st->devnm, MD_NAME_MAX, "%s", fd2devnm(fd));
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for (mse2 = mdstat; mse2; mse2 = mse2->next)
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if (strcmp(mse2->devnm, st->devnm) == 0) {
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@ -670,7 +685,7 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
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strncmp(mse->metadata_version, "external:", 9) == 0 &&
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is_subarray(mse->metadata_version+9)) {
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char *sl;
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strcpy(st->parent_devnm, mse->metadata_version + 10);
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snprintf(st->parent_devnm, MD_NAME_MAX, "%s", mse->metadata_version + 10);
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sl = strchr(st->parent_devnm, '/');
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if (sl)
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*sl = 0;
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@ -758,14 +773,13 @@ static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist,
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continue;
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}
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st->devname = xstrdup(name);
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snprintf(st->devname, MD_NAME_MAX + sizeof("/dev/md/"), "%s", name);
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if ((fd = open(st->devname, O_RDONLY)) < 0 ||
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md_get_array_info(fd, &array) < 0) {
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/* no such array */
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if (fd >= 0)
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close(fd);
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put_md_name(st->devname);
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free(st->devname);
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if (st->metadata) {
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st->metadata->ss->free_super(st->metadata);
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free(st->metadata);
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|
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@ -777,7 +791,7 @@ static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist,
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st->next = *statelist;
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st->err = 1;
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st->from_auto = 1;
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strcpy(st->devnm, mse->devnm);
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snprintf(st->devnm, MD_NAME_MAX, "%s", mse->devnm);
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st->percent = RESYNC_UNKNOWN;
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st->expected_spares = -1;
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if (mse->metadata_version &&
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|
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@ -785,8 +799,8 @@ static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist,
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"external:", 9) == 0 &&
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is_subarray(mse->metadata_version+9)) {
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char *sl;
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strcpy(st->parent_devnm,
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mse->metadata_version+10);
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snprintf(st->parent_devnm, MD_NAME_MAX,
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"%s", mse->metadata_version + 10);
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sl = strchr(st->parent_devnm, '/');
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*sl = 0;
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} else
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|
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@ -1051,6 +1065,24 @@ static void link_containers_with_subarrays(struct state *list)
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}
|
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}
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/**
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* free_statelist() - Frees statelist.
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* @statelist: statelist to free
|
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*/
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static void free_statelist(struct state *statelist)
|
||||
{
|
||||
struct state *tmp = NULL;
|
||||
|
||||
while (statelist) {
|
||||
if (statelist->spare_group)
|
||||
free(statelist->spare_group);
|
||||
|
||||
tmp = statelist;
|
||||
statelist = statelist->next;
|
||||
free(tmp);
|
||||
}
|
||||
}
|
||||
|
||||
#ifndef NO_LIBUDEV
|
||||
/* function: check_udev_activity
|
||||
* Description: Function waits for udev to finish
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue