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181 lines
6.1 KiB
181 lines
6.1 KiB
2 years ago
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diff --git a/agent/mibgroup/ucd-snmp/disk.c b/agent/mibgroup/ucd-snmp/disk.c
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index 7c756ff..ff22019 100644
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--- a/agent/mibgroup/ucd-snmp/disk.c
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+++ b/agent/mibgroup/ucd-snmp/disk.c
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@@ -153,9 +153,10 @@ static void disk_free_config(void);
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static void disk_parse_config(const char *, char *);
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static void disk_parse_config_all(const char *, char *);
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#if HAVE_FSTAB_H || HAVE_GETMNTENT || HAVE_STATFS
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-static void find_and_add_allDisks(int minpercent);
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+static void refresh_disk_table(int addNewDisks, int minpercent);
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static void add_device(char *path, char *device,
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- int minspace, int minpercent, int override);
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+ int minspace, int minpercent, int addNewDisks,
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+ int override);
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static void modify_disk_parameters(int index, int minspace,
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int minpercent);
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static int disk_exists(char *path);
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@@ -167,6 +168,7 @@ struct diskpart {
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char path[STRMAX];
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int minimumspace;
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int minpercent;
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+ int alive;
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};
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#define MAX_INT_32 0x7fffffff
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@@ -174,6 +176,7 @@ struct diskpart {
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unsigned int numdisks;
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int allDisksIncluded = 0;
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+int allDisksMinPercent = 0;
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unsigned int maxdisks = 0;
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struct diskpart *disks;
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@@ -238,6 +241,7 @@ init_disk(void)
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disk_free_config,
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"minpercent%");
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allDisksIncluded = 0;
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+ allDisksMinPercent = 0;
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}
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static void
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@@ -253,6 +257,7 @@ disk_free_config(void)
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disks[i].minpercent = -1;
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}
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allDisksIncluded = 0;
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+ allDisksMinPercent = 0;
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}
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static void
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@@ -313,7 +318,7 @@ disk_parse_config(const char *token, char *cptr)
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* check if the disk already exists, if so then modify its
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* parameters. if it does not exist then add it
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*/
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- add_device(path, find_device(path), minspace, minpercent, 1);
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+ add_device(path, find_device(path), minspace, minpercent, 1, 1);
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#endif /* HAVE_FSTAB_H || HAVE_GETMNTENT || HAVE_STATFS */
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}
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@@ -372,7 +377,7 @@ disk_parse_config_all(const char *token, char *cptr)
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#if HAVE_FSTAB_H || HAVE_GETMNTENT || HAVE_STATFS
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static void
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-add_device(char *path, char *device, int minspace, int minpercent, int override)
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+add_device(char *path, char *device, int minspace, int minpercent, int addNewDisks, int override)
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{
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int index;
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@@ -402,10 +407,16 @@ add_device(char *path, char *device, int minspace, int minpercent, int override)
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}
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index = disk_exists(path);
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- if((index != -1) && (index < maxdisks) && (override==1)) {
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- modify_disk_parameters(index, minspace, minpercent);
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+ if((index != -1) && (index < maxdisks)) {
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+ /* the path is already in the table */
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+ disks[index].alive = 1;
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+ /* -> update its device */
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+ strlcpy(disks[index].device, device, sizeof(disks[index].device));
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+ if (override == 1) {
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+ modify_disk_parameters(index, minspace, minpercent);
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+ }
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}
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- else if(index == -1){
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+ else if(index == -1 && addNewDisks){
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/* add if and only if the device was found */
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if(device[0] != 0) {
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/* The following buffers are cleared above, no need to add '\0' */
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@@ -413,6 +424,7 @@ add_device(char *path, char *device, int minspace, int minpercent, int override)
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strlcpy(disks[numdisks].device, device, sizeof(disks[numdisks].device));
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disks[numdisks].minimumspace = minspace;
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disks[numdisks].minpercent = minpercent;
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+ disks[numdisks].alive = 1;
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numdisks++;
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}
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else {
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@@ -420,6 +432,7 @@ add_device(char *path, char *device, int minspace, int minpercent, int override)
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disks[numdisks].minpercent = -1;
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disks[numdisks].path[0] = 0;
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disks[numdisks].device[0] = 0;
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+ disks[numdisks].alive = 0;
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}
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}
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}
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@@ -444,7 +457,7 @@ int disk_exists(char *path)
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}
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static void
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-find_and_add_allDisks(int minpercent)
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+refresh_disk_table(int addNewDisks, int minpercent)
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{
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#if HAVE_GETMNTENT
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#if HAVE_SYS_MNTTAB_H
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@@ -480,7 +493,7 @@ find_and_add_allDisks(int minpercent)
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return;
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}
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while (mntfp && NULL != (mntent = getmntent(mntfp))) {
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- add_device(mntent->mnt_dir, mntent->mnt_fsname, -1, minpercent, 0);
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+ add_device(mntent->mnt_dir, mntent->mnt_fsname, -1, minpercent, addNewDisks, 0);
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dummy = 1;
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}
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if (mntfp)
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@@ -497,7 +510,7 @@ find_and_add_allDisks(int minpercent)
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return;
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}
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while ((i = getmntent(mntfp, &mnttab)) == 0) {
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- add_device(mnttab.mnt_mountp, mnttab.mnt_special, -1, minpercent, 0);
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+ add_device(mnttab.mnt_mountp, mnttab.mnt_special, -1, minpercent, addNewDisks, 0);
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dummy = 1;
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}
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fclose(mntfp);
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@@ -514,13 +527,13 @@ find_and_add_allDisks(int minpercent)
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mntsize = getmntinfo(&mntbuf, MNT_NOWAIT);
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for (i = 0; i < mntsize; i++) {
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add_device(mntbuf[i].f_mntonname, mntbuf[i].f_mntfromname, -1,
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- minpercent, 0);
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+ minpercent, addNewDisks 0);
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}
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}
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#elif HAVE_FSTAB_H
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setfsent(); /* open /etc/fstab */
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while((fstab1 = getfsent()) != NULL) {
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- add_device(fstab1->fs_file, fstab1->fs_spec, -1, minpercent, 0);
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+ add_device(fstab1->fs_file, fstab1->fs_spec, -1, minpercent, addNewDisks, 0);
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dummy = 1;
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}
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endfsent(); /* close /etc/fstab */
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@@ -535,7 +548,7 @@ find_and_add_allDisks(int minpercent)
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* statfs we default to the root partition "/"
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*/
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if (statfs("/", &statf) == 0) {
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- add_device("/", statf.f_mntfromname, -1, minpercent, 0);
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+ add_device("/", statf.f_mntfromname, -1, minpercent, addNewDisks, 0);
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}
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#endif
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else {
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@@ -694,6 +707,10 @@ fill_dsk_entry(int disknum, struct dsk_entry *entry)
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#endif
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#endif
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+ if (disks[disknum].alive == 0){
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+ return -1;
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+ }
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+
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entry->dskPercentInode = -1;
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#if defined(HAVE_STATVFS) || defined(HAVE_STATFS)
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@@ -825,6 +842,13 @@ var_extensible_disk(struct variable *vp,
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static char *errmsg;
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static char empty_str[1];
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+ int i;
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+ for (i = 0; i < numdisks; i++){
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+ disks[i].alive = 0;
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+ }
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+ /* dynamically add new disks + update alive flag */
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+ refresh_disk_table(allDisksIncluded, allDisksMinPercent);
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+
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tryAgain:
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if (header_simple_table
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(vp, name, length, exact, var_len, write_method, numdisks))
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