/*
* Method: nfssec_get_default_secmode
*
* Description: Retrieves the default security mode for NFS.
*
* Parameters:
* - int *errp - the error indicator. This will be set to a non-zero
* value upon error.
*
* Returns:
* - char * - the NFS security mode name.
* - NULL if an error occurred.
*
* Note: Caller must free the space allocated for the return value.
*/
char *
nfssec_get_default_secmode(int *errp)
{
seconfig_t secp, defsecp;
char *ret_val;
int err = 0;
*errp = 0;
err = nfs_getseconfig_default(&secp);
if (err != 0) {
*errp = err;
return (NULL);
}
err = nfs_getseconfig_bynumber(secp.sc_nfsnum, &defsecp);
if (err != 0) {
*errp = err;
return (NULL);
}
ret_val = strdup(defsecp.sc_name);
if (ret_val == NULL) {
*errp = ENOMEM;
return (NULL);
}
return (ret_val);
} /* nfssec_get_default_secmode */
/*
* Print the mount table info
*/
static void
mi_print(void)
{
FILE *mt;
struct extmnttab m;
struct myrec *list, *mrp, *pmrp;
char *flavor;
int ignored = 0;
seconfig_t nfs_sec;
kstat_t *ksp;
struct mntinfo_kstat mik;
int transport_flag = 0;
int path_count;
int found;
char *timer_name[] = {
"Lookups",
"Reads",
"Writes",
"All"
};
mt = fopen(MNTTAB, "r");
if (mt == NULL) {
perror(MNTTAB);
exit(0);
}
list = NULL;
resetmnttab(mt);
while (getextmntent(mt, &m, sizeof (struct extmnttab)) == 0) {
/* ignore non "nfs" and save the "ignore" entries */
if (strcmp(m.mnt_fstype, MNTTYPE_NFS) != 0)
continue;
/*
* Check to see here if user gave a path(s) to
* only show the mount point they wanted
* Iterate through the list of paths the user gave and see
* if any of them match our current nfs mount
*/
if (path[0] != NULL) {
found = 0;
for (path_count = 0; path[path_count] != NULL;
path_count++) {
if (strcmp(path[path_count], m.mnt_mountp)
== 0) {
found = 1;
break;
}
}
if (!found)
continue;
}
if ((mrp = malloc(sizeof (struct myrec))) == 0) {
fprintf(stderr, "nfsstat: not enough memory\n");
exit(1);
}
mrp->my_fsid = makedev(m.mnt_major, m.mnt_minor);
if (ignore(m.mnt_mntopts)) {
/*
* ignored entries cannot be ignored for this
* option. We have to display the info for this
* nfs mount. The ignore is an indication
* that the actual mount point is different and
* something is in between the nfs mount.
* So save the mount point now
*/
if ((mrp->ig_path = malloc(
strlen(m.mnt_mountp) + 1)) == 0) {
fprintf(stderr, "nfsstat: not enough memory\n");
exit(1);
}
(void) strcpy(mrp->ig_path, m.mnt_mountp);
ignored++;
} else {
mrp->ig_path = 0;
(void) strcpy(mrp->my_dir, m.mnt_mountp);
}
if ((mrp->my_path = strdup(m.mnt_special)) == NULL) {
fprintf(stderr, "nfsstat: not enough memory\n");
exit(1);
}
mrp->next = list;
list = mrp;
}
/*
* If something got ignored, go to the beginning of the mnttab
* and look for the cachefs entries since they are the one
* causing this. The mount point saved for the ignored entries
* is matched against the special to get the actual mount point.
* We are interested in the acutal mount point so that the output
* look nice too.
*/
if (ignored) {
rewind(mt);
resetmnttab(mt);
while (getextmntent(mt, &m, sizeof (struct extmnttab)) == 0) {
/* ignore non "cachefs" */
if (strcmp(m.mnt_fstype, MNTTYPE_CACHEFS) != 0)
continue;
for (mrp = list; mrp; mrp = mrp->next) {
if (mrp->ig_path == 0)
continue;
if (strcmp(mrp->ig_path, m.mnt_special) == 0) {
mrp->ig_path = 0;
(void) strcpy(mrp->my_dir,
m.mnt_mountp);
}
}
}
/*
* Now ignored entries which do not have
* the my_dir initialized are really ignored; This never
* happens unless the mnttab is corrupted.
*/
for (pmrp = 0, mrp = list; mrp; mrp = mrp->next) {
if (mrp->ig_path == 0)
pmrp = mrp;
else if (pmrp)
pmrp->next = mrp->next;
else
list = mrp->next;
}
}
(void) fclose(mt);
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
int i;
if (ksp->ks_type != KSTAT_TYPE_RAW)
continue;
if (strcmp(ksp->ks_module, "nfs") != 0)
continue;
if (strcmp(ksp->ks_name, "mntinfo") != 0)
continue;
for (mrp = list; mrp; mrp = mrp->next) {
if ((mrp->my_fsid & MAXMIN) == ksp->ks_instance)
break;
}
if (mrp == 0)
continue;
if (safe_kstat_read(kc, ksp, &mik) == -1)
continue;
printf("%s from %s\n", mrp->my_dir, mrp->my_path);
/*
* for printing rdma transport and provider string.
* This way we avoid modifying the kernel mntinfo_kstat
* struct for protofmly.
*/
if (strcmp(mik.mik_proto, "ibtf") == 0) {
printf(" Flags: vers=%u,proto=rdma",
mik.mik_vers);
transport_flag = 1;
} else {
printf(" Flags: vers=%u,proto=%s",
mik.mik_vers, mik.mik_proto);
transport_flag = 0;
}
/*
* get the secmode name from /etc/nfssec.conf.
*/
if (!nfs_getseconfig_bynumber(mik.mik_secmod, &nfs_sec)) {
flavor = nfs_sec.sc_name;
} else
flavor = NULL;
if (flavor != NULL)
printf(",sec=%s", flavor);
else
printf(",sec#=%d", mik.mik_secmod);
printf(",%s", (mik.mik_flags & MI_HARD) ? "hard" : "soft");
if (mik.mik_flags & MI_PRINTED)
printf(",printed");
printf(",%s", (mik.mik_flags & MI_INT) ? "intr" : "nointr");
if (mik.mik_flags & MI_DOWN)
printf(",down");
if (mik.mik_flags & MI_NOAC)
printf(",noac");
if (mik.mik_flags & MI_NOCTO)
printf(",nocto");
if (mik.mik_flags & MI_DYNAMIC)
printf(",dynamic");
if (mik.mik_flags & MI_LLOCK)
printf(",llock");
if (mik.mik_flags & MI_GRPID)
printf(",grpid");
if (mik.mik_flags & MI_RPCTIMESYNC)
printf(",rpctimesync");
if (mik.mik_flags & MI_LINK)
printf(",link");
if (mik.mik_flags & MI_SYMLINK)
printf(",symlink");
if (mik.mik_vers < NFS_V4 && mik.mik_flags & MI_READDIRONLY)
printf(",readdironly");
if (mik.mik_flags & MI_ACL)
printf(",acl");
if (mik.mik_vers >= NFS_V4) {
if (mik.mik_flags & MI4_MIRRORMOUNT)
printf(",mirrormount");
}
printf(",rsize=%d,wsize=%d,retrans=%d,timeo=%d",
mik.mik_curread, mik.mik_curwrite, mik.mik_retrans,
mik.mik_timeo);
printf("\n");
printf(" Attr cache: acregmin=%d,acregmax=%d"
",acdirmin=%d,acdirmax=%d\n", mik.mik_acregmin,
mik.mik_acregmax, mik.mik_acdirmin, mik.mik_acdirmax);
if (transport_flag) {
printf(" Transport: proto=rdma, plugin=%s\n",
mik.mik_proto);
}
#define srtt_to_ms(x) x, (x * 2 + x / 2)
#define dev_to_ms(x) x, (x * 5)
for (i = 0; i < NFS_CALLTYPES + 1; i++) {
int j;
j = (i == NFS_CALLTYPES ? i - 1 : i);
if (mik.mik_timers[j].srtt ||
mik.mik_timers[j].rtxcur) {
printf(" %s: srtt=%d (%dms), "
"dev=%d (%dms), cur=%u (%ums)\n",
timer_name[i],
srtt_to_ms(mik.mik_timers[i].srtt),
dev_to_ms(mik.mik_timers[i].deviate),
mik.mik_timers[i].rtxcur,
mik.mik_timers[i].rtxcur * 20);
}
}
if (strchr(mrp->my_path, ','))
printf(
" Failover: noresponse=%d,failover=%d,"
"remap=%d,currserver=%s\n",
mik.mik_noresponse, mik.mik_failover,
mik.mik_remap, mik.mik_curserver);
printf("\n");
}
}
