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The functions that set and delete external attributes must check

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that the filesystem is not mounted read-only before proceeding.

Reported by: Ryan Beasley <ryanb@FreeBSD.org>
MFC after: 1 week
This commit is contained in:
Kirk McKusick 2007-02-21 08:50:06 +00:00
parent 2483dd1389
commit 6e6b7d44ef
1 changed files with 9 additions and 0 deletions
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9
sys/ufs/ffs/ffs_vnops.c
View file

@ -1358,6 +1358,9 @@ struct vop_closeextattr_args {
if (ap->a_vp->v_type == VCHR)
return (EOPNOTSUPP);
if (ap->a_commit && (ap->a_vp->v_mount->mnt_flag & MNT_RDONLY))
return (EROFS);
return (ffs_close_ea(ap->a_vp, ap->a_commit, ap->a_cred, ap->a_td));
}
@ -1392,6 +1395,9 @@ vop_deleteextattr {
if (strlen(ap->a_name) == 0)
return (EINVAL);
if (ap->a_vp->v_mount->mnt_flag & MNT_RDONLY)
return (EROFS);
error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
ap->a_cred, ap->a_td, IWRITE);
if (error) {
@ -1613,6 +1619,9 @@ vop_setextattr {
if (ap->a_uio == NULL)
return (EOPNOTSUPP);
if (ap->a_vp->v_mount->mnt_flag & MNT_RDONLY)
return (EROFS);
error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
ap->a_cred, ap->a_td, IWRITE);
if (error) {