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OpenZFS 8984 - fix for 6764 breaks ACL inheritance
Authored by: Dominik Hassler <hadfl@omniosce.org> Reviewed by: Sam Zaydel <szaydel@racktopsystems.com> Reviewed by: Paul B. Henson <henson@acm.org> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Approved by: Matthew Ahrens <mahrens@delphix.com> Ported-by: Paul B. Henson <henson@acm.org> OpenZFS-issue: https://www.illumos.org/issues/8984 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/e9bacc6d1a Closes #10266
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@ -1646,7 +1646,7 @@ zfs_ace_can_use(umode_t obj_mode, uint16_t acep_flags)
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*/
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static zfs_acl_t *
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zfs_acl_inherit(zfsvfs_t *zfsvfs, umode_t va_mode, zfs_acl_t *paclp,
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uint64_t mode)
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uint64_t mode, boolean_t *need_chmod)
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{
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void *pacep = NULL;
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void *acep;
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@ -1660,6 +1660,9 @@ zfs_acl_inherit(zfsvfs_t *zfsvfs, umode_t va_mode, zfs_acl_t *paclp,
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size_t data1sz, data2sz;
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uint_t aclinherit;
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boolean_t isdir = S_ISDIR(va_mode);
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boolean_t isreg = S_ISREG(va_mode);
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*need_chmod = B_TRUE;
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aclp = zfs_acl_alloc(paclp->z_version);
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aclinherit = zfsvfs->z_acl_inherit;
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@ -1682,6 +1685,17 @@ zfs_acl_inherit(zfsvfs_t *zfsvfs, umode_t va_mode, zfs_acl_t *paclp,
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!zfs_ace_can_use(va_mode, iflags))
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continue;
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/*
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* If owner@, group@, or everyone@ inheritable
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* then zfs_acl_chmod() isn't needed.
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*/
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if ((aclinherit == ZFS_ACL_PASSTHROUGH ||
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aclinherit == ZFS_ACL_PASSTHROUGH_X) &&
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((iflags & (ACE_OWNER|ACE_EVERYONE)) ||
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((iflags & OWNING_GROUP) == OWNING_GROUP)) &&
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(isreg || (isdir && (iflags & ACE_DIRECTORY_INHERIT_ACE))))
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*need_chmod = B_FALSE;
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/*
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* Strip inherited execute permission from file if
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* not in mode
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@ -1769,6 +1783,7 @@ zfs_acl_ids_create(znode_t *dzp, int flag, vattr_t *vap, cred_t *cr,
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zfsvfs_t *zfsvfs = ZTOZSB(dzp);
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zfs_acl_t *paclp;
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gid_t gid = vap->va_gid;
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boolean_t need_chmod = B_TRUE;
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boolean_t trim = B_FALSE;
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boolean_t inherited = B_FALSE;
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@ -1862,7 +1877,7 @@ zfs_acl_ids_create(znode_t *dzp, int flag, vattr_t *vap, cred_t *cr,
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VERIFY(0 == zfs_acl_node_read(dzp, B_TRUE,
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&paclp, B_FALSE));
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acl_ids->z_aclp = zfs_acl_inherit(zfsvfs,
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vap->va_mode, paclp, acl_ids->z_mode);
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vap->va_mode, paclp, acl_ids->z_mode, &need_chmod);
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inherited = B_TRUE;
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} else {
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acl_ids->z_aclp =
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@ -1872,15 +1887,18 @@ zfs_acl_ids_create(znode_t *dzp, int flag, vattr_t *vap, cred_t *cr,
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mutex_exit(&dzp->z_lock);
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mutex_exit(&dzp->z_acl_lock);
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if (S_ISDIR(vap->va_mode))
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acl_ids->z_aclp->z_hints |= ZFS_ACL_AUTO_INHERIT;
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if (need_chmod) {
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if (S_ISDIR(vap->va_mode))
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acl_ids->z_aclp->z_hints |=
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ZFS_ACL_AUTO_INHERIT;
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if (zfsvfs->z_acl_mode == ZFS_ACL_GROUPMASK &&
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zfsvfs->z_acl_inherit != ZFS_ACL_PASSTHROUGH &&
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zfsvfs->z_acl_inherit != ZFS_ACL_PASSTHROUGH_X)
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trim = B_TRUE;
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zfs_acl_chmod(S_ISDIR(vap->va_mode), acl_ids->z_mode, B_FALSE,
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trim, acl_ids->z_aclp);
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if (zfsvfs->z_acl_mode == ZFS_ACL_GROUPMASK &&
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zfsvfs->z_acl_inherit != ZFS_ACL_PASSTHROUGH &&
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zfsvfs->z_acl_inherit != ZFS_ACL_PASSTHROUGH_X)
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trim = B_TRUE;
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zfs_acl_chmod(vap->va_mode, acl_ids->z_mode, B_FALSE,
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trim, acl_ids->z_aclp);
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}
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}
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if (inherited || vsecp) {
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