Differential D24753 Diff 71637 head/sys/kern/vfs_export.c

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head/sys/kern/vfs_export.c

Show First 20 Lines • Show All 106 Lines • ▼ Show 20 Lines	vfs_hang_addrlist(struct mount mp, struct netexport nep,
int i;		int i;
struct radix_node *rn;		struct radix_node *rn;
struct sockaddr saddr, smask = NULL;		struct sockaddr saddr, smask = NULL;
#if defined(INET6) \|\| defined(INET)		#if defined(INET6) \|\| defined(INET)
int off;		int off;
#endif		#endif
int error;		int error;

		KASSERT(argp->ex_numsecflavors > 0,
		("%s: numsecflavors <= 0", __func__));
		KASSERT(argp->ex_numsecflavors < MAXSECFLAVORS,
		("%s: numsecflavors >= MAXSECFLAVORS", __func__));

/*		/*
* XXX: This routine converts from a `struct xucred'		* XXX: This routine converts from a `struct xucred'
* (argp->ex_anon) to a `struct ucred' (np->netc_anon). This		* (argp->ex_anon) to a `struct ucred' (np->netc_anon). This
* operation is questionable; for example, what should be done		* operation is questionable; for example, what should be done
* with fields like cr_uidinfo and cr_prison? Currently, this		* with fields like cr_uidinfo and cr_prison? Currently, this
* routine does not touch them (leaves them as NULL).		* routine does not touch them (leaves them as NULL).
*/		*/
if (argp->ex_anon.cr_version != XUCRED_VERSION) {		if (argp->ex_anon.cr_version != XUCRED_VERSION) {
▲ Show 20 Lines • Show All 172 Lines • ▼ Show 20 Lines
* the structure is described in sys/mount.h		* the structure is described in sys/mount.h
*/		*/
int		int
vfs_export(struct mount mp, struct export_args argp)		vfs_export(struct mount mp, struct export_args argp)
{		{
struct netexport *nep;		struct netexport *nep;
int error;		int error;

if (argp->ex_numsecflavors < 0		if ((argp->ex_flags & (MNT_DELEXPORT \| MNT_EXPORTED)) == 0)
\|\| argp->ex_numsecflavors >= MAXSECFLAVORS)
return (EINVAL);		return (EINVAL);

		if ((argp->ex_flags & MNT_EXPORTED) != 0 &&
		(argp->ex_numsecflavors <= 0
		\|\| argp->ex_numsecflavors >= MAXSECFLAVORS))
		return (EINVAL);

error = 0;		error = 0;
lockmgr(&mp->mnt_explock, LK_EXCLUSIVE, NULL);		lockmgr(&mp->mnt_explock, LK_EXCLUSIVE, NULL);
nep = mp->mnt_export;		nep = mp->mnt_export;
if (argp->ex_flags & MNT_DELEXPORT) {		if (argp->ex_flags & MNT_DELEXPORT) {
if (nep == NULL) {		if (nep == NULL) {
error = ENOENT;		error = ENOENT;
goto out;		goto out;
}		}
▲ Show 20 Lines • Show All 198 Lines • ▼ Show 20 Lines	vfs_stdcheckexp(struct mount mp, struct sockaddr nam, int *extflagsp,
if (np == NULL) {		if (np == NULL) {
lockmgr(&mp->mnt_explock, LK_RELEASE, NULL);		lockmgr(&mp->mnt_explock, LK_RELEASE, NULL);
*credanonp = NULL;		*credanonp = NULL;
return (EACCES);		return (EACCES);
}		}
*extflagsp = np->netc_exflags;		*extflagsp = np->netc_exflags;
if ((*credanonp = np->netc_anon) != NULL)		if ((*credanonp = np->netc_anon) != NULL)
crhold(*credanonp);		crhold(*credanonp);
if (numsecflavors)		if (numsecflavors) {
*numsecflavors = np->netc_numsecflavors;		*numsecflavors = np->netc_numsecflavors;
		KASSERT(*numsecflavors > 0,
		("%s: numsecflavors <= 0", __func__));
		KASSERT(*numsecflavors < MAXSECFLAVORS,
		("%s: numsecflavors >= MAXSECFLAVORS", __func__));
		}
if (secflavors)		if (secflavors)
*secflavors = np->netc_secflavors;		*secflavors = np->netc_secflavors;
lockmgr(&mp->mnt_explock, LK_RELEASE, NULL);		lockmgr(&mp->mnt_explock, LK_RELEASE, NULL);
return (0);		return (0);
}		}