/*
* Wrapper around hasmntvalerr(), which retains backwards compatibiliy with
* older use of hasmntval().
*
* XXX: eventually, all use of hasmntval() should be replaced with
* hasmntvalerr().
*/
int
hasmntval(mntent_t *mnt, char *opt)
{
int err, val = 0;
err = hasmntvalerr(mnt, opt, &val);
if (err) /* if there was an error (hasmntvalerr returned 1) */
return 0; /* redundant: val==0 above, but leave here for clarity */
/* otherwise there was no error */
return val;
}
/*
* Compute all NFS attribute cache related flags separately. Note that this
* function now computes attribute-cache flags for both Amd's automount
* points (NFS) as well as any normal NFS mount that Amd performs. Edit
* with caution.
*/
static void
compute_nfs_attrcache_flags(nfs_args_t *nap, mntent_t *mntp)
{
int acval = 0;
int err_acval = 1; /* 1 means we found no 'actimeo' value */
#if defined(HAVE_NFS_ARGS_T_ACREGMIN) || defined(HAVE_NFS_ARGS_T_ACREGMAX) || defined(HAVE_NFS_ARGS_T_ACDIRMIN) || defined(HAVE_NFS_ARGS_T_ACDIRMAX)
int err_acrdmm; /* for ac{reg,dir}{min,max} */
#endif /* HAVE_NFS_ARGS_T_AC{REG,DIR}{MIN,MAX} */
/************************************************************************/
/*** ATTRIBUTE CACHES ***/
/************************************************************************/
/*
* acval is set to 0 at the top of the function. If actimeo mount option
* exists and defined in mntopts, then its acval is set to it.
* If the value is non-zero, then we set all attribute cache fields to it.
* If acval is zero, it means it was never defined in mntopts or the
* actimeo mount option does not exist, in which case we check for
* individual mount options per attribute cache.
* Regardless of the value of acval, mount flags are set based directly
* on the values of the attribute caches.
*/
#ifdef MNTTAB_OPT_ACTIMEO
err_acval = hasmntvalerr(mntp, MNTTAB_OPT_ACTIMEO, &acval); /* attr cache timeout (sec) */
#endif /* MNTTAB_OPT_ACTIMEO */
/*** acregmin ***/
#ifdef HAVE_NFS_ARGS_T_ACREGMIN
err_acrdmm = 1; /* 1 means we found no acregmin value */
if (!err_acval) {
nap->acregmin = acval; /* min ac timeout for reg files (sec) */
} else {
# ifdef MNTTAB_OPT_ACREGMIN
err_acrdmm = hasmntvalerr(mntp, MNTTAB_OPT_ACREGMIN, (int *) &nap->acregmin);
# else /* not MNTTAB_OPT_ACREGMIN */
nap->acregmin = 0;
# endif /* not MNTTAB_OPT_ACREGMIN */
}
/* set this flag iff we changed acregmin (possibly to zero) */
# ifdef MNT2_NFS_OPT_ACREGMIN
if (!err_acval || !err_acrdmm)
nap->flags |= MNT2_NFS_OPT_ACREGMIN;
# endif /* MNT2_NFS_OPT_ACREGMIN */
#endif /* HAVE_NFS_ARGS_T_ACREGMIN */
/*** acregmax ***/
#ifdef HAVE_NFS_ARGS_T_ACREGMAX
err_acrdmm = 1; /* 1 means we found no acregmax value */
if (!err_acval) {
nap->acregmax = acval; /* max ac timeout for reg files (sec) */
} else {
# ifdef MNTTAB_OPT_ACREGMAX
err_acrdmm = hasmntvalerr(mntp, MNTTAB_OPT_ACREGMAX, (int *) &nap->acregmax);
# else /* not MNTTAB_OPT_ACREGMAX */
nap->acregmax = 0;
# endif /* not MNTTAB_OPT_ACREGMAX */
}
/* set this flag iff we changed acregmax (possibly to zero) */
# ifdef MNT2_NFS_OPT_ACREGMAX
if (!err_acval || !err_acrdmm)
nap->flags |= MNT2_NFS_OPT_ACREGMAX;
# endif /* MNT2_NFS_OPT_ACREGMAX */
#endif /* HAVE_NFS_ARGS_T_ACREGMAX */
/*** acdirmin ***/
#ifdef HAVE_NFS_ARGS_T_ACDIRMIN
err_acrdmm = 1; /* 1 means we found no acdirmin value */
if (!err_acval) {
nap->acdirmin = acval; /* min ac timeout for dirs (sec) */
} else {
# ifdef MNTTAB_OPT_ACDIRMIN
err_acrdmm = hasmntvalerr(mntp, MNTTAB_OPT_ACDIRMIN, (int *) &nap->acdirmin);
# else /* not MNTTAB_OPT_ACDIRMIN */
nap->acdirmin = 0;
# endif /* not MNTTAB_OPT_ACDIRMIN */
}
/* set this flag iff we changed acdirmin (possibly to zero) */
# ifdef MNT2_NFS_OPT_ACDIRMIN
if (!err_acval || !err_acrdmm)
nap->flags |= MNT2_NFS_OPT_ACDIRMIN;
# endif /* MNT2_NFS_OPT_ACDIRMIN */
#endif /* HAVE_NFS_ARGS_T_ACDIRMIN */
/*** acdirmax ***/
#ifdef HAVE_NFS_ARGS_T_ACDIRMAX
err_acrdmm = 1; /* 1 means we found no acdirmax value */
if (!err_acval) {
nap->acdirmax = acval; /* max ac timeout for dirs (sec) */
} else {
# ifdef MNTTAB_OPT_ACDIRMAX
err_acrdmm = hasmntvalerr(mntp, MNTTAB_OPT_ACDIRMAX, (int *) &nap->acdirmax);
# else /* not MNTTAB_OPT_ACDIRMAX */
nap->acdirmax = 0;
# endif /* not MNTTAB_OPT_ACDIRMAX */
}
/* set this flag iff we changed acdirmax (possibly to zero) */
# ifdef MNT2_NFS_OPT_ACDIRMAX
if (!err_acval || !err_acrdmm)
nap->flags |= MNT2_NFS_OPT_ACDIRMAX;
# endif /* MNT2_NFS_OPT_ACDIRMAX */
#endif /* HAVE_NFS_ARGS_T_ACDIRMAX */
/* don't cache attributes */
#if defined(MNTTAB_OPT_NOAC) && defined(MNT2_NFS_OPT_NOAC)
if (amu_hasmntopt(mntp, MNTTAB_OPT_NOAC) != NULL)
nap->flags |= MNT2_NFS_OPT_NOAC;
#endif /* defined(MNTTAB_OPT_NOAC) && defined(MNT2_NFS_OPT_NOAC) */
(void)err_acval;
}
