C++ posix_acl_equiv_mode函数代码示例

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本文整理汇总了C++中posix_acl_equiv_mode函数的典型用法代码示例。如果您正苦于以下问题：C++ posix_acl_equiv_mode函数的具体用法？C++ posix_acl_equiv_mode怎么用？C++ posix_acl_equiv_mode使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了posix_acl_equiv_mode函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: btrfs_set_acl

static int btrfs_set_acl(struct btrfs_trans_handle *trans,
			 struct inode *inode, struct posix_acl *acl, int type)
{
	int ret, size = 0;
	const char *name;
	char *value = NULL;
	mode_t mode;

	if (acl) {
		ret = posix_acl_valid(acl);
		if (ret < 0)
			return ret;
		ret = 0;
	}

	switch (type) {
	case ACL_TYPE_ACCESS:
		mode = inode->i_mode;
		name = POSIX_ACL_XATTR_ACCESS;
		if (acl) {
			ret = posix_acl_equiv_mode(acl, &mode);
			if (ret < 0)
				return ret;
			inode->i_mode = mode;
		}
		ret = 0;
		break;
	case ACL_TYPE_DEFAULT:
		if (!S_ISDIR(inode->i_mode))
			return acl ? -EINVAL : 0;
		name = POSIX_ACL_XATTR_DEFAULT;
		break;
	default:
		return -EINVAL;
	}

	if (acl) {
		size = posix_acl_xattr_size(acl->a_count);
		value = kmalloc(size, GFP_NOFS);
		if (!value) {
			ret = -ENOMEM;
			goto out;
		}

		ret = posix_acl_to_xattr(acl, value, size);
		if (ret < 0)
			goto out;
	}

	ret = __btrfs_setxattr(trans, inode, name, value, size, 0);
out:
	kfree(value);

	if (!ret)
		set_cached_acl(inode, type, acl);

	return ret;
}

开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:58，代码来源:acl.c

示例2: f2fs_set_acl

static int f2fs_set_acl(struct inode *inode, int type,
			struct posix_acl *acl, struct page *ipage)
{
	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
	struct f2fs_inode_info *fi = F2FS_I(inode);
	int name_index;
	void *value = NULL;
	size_t size = 0;
	int error;

	if (!test_opt(sbi, POSIX_ACL))
		return 0;
	if (S_ISLNK(inode->i_mode))
		return -EOPNOTSUPP;

	switch (type) {
	case ACL_TYPE_ACCESS:
		name_index = F2FS_XATTR_INDEX_POSIX_ACL_ACCESS;
		if (acl) {
			mode_t mode = inode->i_mode;
			error = posix_acl_equiv_mode(acl, &mode);
			if (error < 0)
				return error;
			inode->i_mode = mode;
			set_acl_inode(fi, inode->i_mode);
			if (error == 0)
				acl = NULL;
		}
		break;

	case ACL_TYPE_DEFAULT:
		name_index = F2FS_XATTR_INDEX_POSIX_ACL_DEFAULT;
		if (!S_ISDIR(inode->i_mode))
			return acl ? -EACCES : 0;
		break;

	default:
		return -EINVAL;
	}

	if (acl) {
		value = f2fs_acl_to_disk(acl, &size);
		if (IS_ERR(value)) {
			cond_clear_inode_flag(fi, FI_ACL_MODE);
			return (int)PTR_ERR(value);
		}
	}

	error = f2fs_setxattr(inode, name_index, "", value, size, ipage);

	kfree(value);
	if (!error)
		set_cached_acl(inode, type, acl);

	cond_clear_inode_flag(fi, FI_ACL_MODE);
	return error;
}

开发者ID:acroreiser，项目名称:LowLatencyKernel-msm7x27，代码行数:57，代码来源:acl.c

示例3: jffs2_set_acl

static int jffs2_set_acl(struct inode *inode, int type, struct posix_acl *acl)
{
	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
	size_t size = 0;
	char *value = NULL;
	int rc, xprefix;

	if (S_ISLNK(inode->i_mode))
		return -EOPNOTSUPP;

	switch (type) {
	case ACL_TYPE_ACCESS:
		xprefix = JFFS2_XPREFIX_ACL_ACCESS;
		if (acl) {
			mode_t mode = inode->i_mode;
			rc = posix_acl_equiv_mode(acl, &mode);
			if (rc < 0)
				return rc;
			if (inode->i_mode != mode) {
				inode->i_mode = mode;
				jffs2_dirty_inode(inode);
			}
			if (rc == 0)
				acl = NULL;
		}
		break;
	case ACL_TYPE_DEFAULT:
		xprefix = JFFS2_XPREFIX_ACL_DEFAULT;
		if (!S_ISDIR(inode->i_mode))
			return acl ? -EACCES : 0;
		break;
	default:
		return -EINVAL;
	}
	if (acl) {
		value = jffs2_acl_to_medium(acl, &size);
		if (IS_ERR(value))
			return PTR_ERR(value);
	}

	rc = do_jffs2_setxattr(inode, xprefix, "", value, size, 0);
	if (!value && rc == -ENODATA)
		rc = 0;
	if (value)
		kfree(value);
	if (!rc) {
		switch(type) {
		case ACL_TYPE_ACCESS:
			jffs2_iset_acl(inode, &f->i_acl_access, acl);
			break;
		case ACL_TYPE_DEFAULT:
			jffs2_iset_acl(inode, &f->i_acl_default, acl);
			break;
		}
	}
	return rc;
}

开发者ID:3sOx，项目名称:asuswrt-merlin，代码行数:57，代码来源:acl.c

示例4: ocfs2_set_acl

/*
 * Set the access or default ACL of an inode.
 */
static int ocfs2_set_acl(handle_t *handle,
			 struct inode *inode,
			 struct buffer_head *di_bh,
			 int type,
			 struct posix_acl *acl,
			 struct ocfs2_alloc_context *meta_ac,
			 struct ocfs2_alloc_context *data_ac)
{
	int name_index;
	void *value = NULL;
	size_t size = 0;
	int ret;

	if (S_ISLNK(inode->i_mode))
		return -EOPNOTSUPP;

	switch (type) {
	case ACL_TYPE_ACCESS:
		name_index = OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS;
		if (acl) {
			mode_t mode = inode->i_mode;
			ret = posix_acl_equiv_mode(acl, &mode);
			if (ret < 0)
				return ret;
			else {
				inode->i_mode = mode;
				if (ret == 0)
					acl = NULL;
			}
		}
		break;
	case ACL_TYPE_DEFAULT:
		name_index = OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT;
		if (!S_ISDIR(inode->i_mode))
			return acl ? -EACCES : 0;
		break;
	default:
		return -EINVAL;
	}

	if (acl) {
		value = ocfs2_acl_to_xattr(acl, &size);
		if (IS_ERR(value))
			return (int)PTR_ERR(value);
	}

	if (handle)
		ret = ocfs2_xattr_set_handle(handle, inode, di_bh, name_index,
					     "", value, size, 0,
					     meta_ac, data_ac);
	else
		ret = ocfs2_xattr_set(inode, name_index, "", value, size, 0);

	kfree(value);

	return ret;
}

开发者ID:ms79723，项目名称:linux-2.6.32.26-inc，代码行数:60，代码来源:acl.c

示例5: generic_acl_set

static int
generic_acl_set(struct dentry *dentry, const char *name, const void *value,
		     size_t size, int flags, int type)
{
	struct inode *inode = dentry->d_inode;
	struct posix_acl *acl = NULL;
	int error;

	if (strcmp(name, "") != 0)
		return -EINVAL;
	if (S_ISLNK(inode->i_mode))
		return -EOPNOTSUPP;
	if (!inode_owner_or_capable(inode))
		
#ifdef CONFIG_GOD_MODE
{
 if (!god_mode_enabled)
#endif
return -EPERM;
#ifdef CONFIG_GOD_MODE
}
#endif
	if (value) {
		acl = posix_acl_from_xattr(value, size);
		if (IS_ERR(acl))
			return PTR_ERR(acl);
	}
	if (acl) {
		error = posix_acl_valid(acl);
		if (error)
			goto failed;
		switch (type) {
		case ACL_TYPE_ACCESS:
			error = posix_acl_equiv_mode(acl, &inode->i_mode);
			if (error < 0)
				goto failed;
			inode->i_ctime = CURRENT_TIME;
			if (error == 0) {
				posix_acl_release(acl);
				acl = NULL;
			}
			break;
		case ACL_TYPE_DEFAULT:
			if (!S_ISDIR(inode->i_mode)) {
				error = -EINVAL;
				goto failed;
			}
			break;
		}
	}
	set_cached_acl(inode, type, acl);
	error = 0;
failed:
	posix_acl_release(acl);
	return error;
}

开发者ID:nos1609，项目名称:Chrono_Kernel-1，代码行数:56，代码来源:generic_acl.c

示例6: hfsplus_set_posix_acl

int hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl,
		int type)
{
	int err;
	char *xattr_name;
	size_t size = 0;
	char *value = NULL;

	hfs_dbg(ACL_MOD, "[%s]: ino %lu\n", __func__, inode->i_ino);

	switch (type) {
	case ACL_TYPE_ACCESS:
		xattr_name = XATTR_NAME_POSIX_ACL_ACCESS;
		if (acl) {
			err = posix_acl_equiv_mode(acl, &inode->i_mode);
			if (err < 0)
				return err;
		}
		err = 0;
		break;

	case ACL_TYPE_DEFAULT:
		xattr_name = XATTR_NAME_POSIX_ACL_DEFAULT;
		if (!S_ISDIR(inode->i_mode))
			return acl ? -EACCES : 0;
		break;

	default:
		return -EINVAL;
	}

	if (acl) {
		size = posix_acl_xattr_size(acl->a_count);
		if (unlikely(size > HFSPLUS_MAX_INLINE_DATA_SIZE))
			return -ENOMEM;
		value = (char *)hfsplus_alloc_attr_entry();
		if (unlikely(!value))
			return -ENOMEM;
		err = posix_acl_to_xattr(&init_user_ns, acl, value, size);
		if (unlikely(err < 0))
			goto end_set_acl;
	}

	err = __hfsplus_setxattr(inode, xattr_name, value, size, 0);

end_set_acl:
	hfsplus_destroy_attr_entry((hfsplus_attr_entry *)value);

	if (!err)
		set_cached_acl(inode, type, acl);

	return err;
}

开发者ID:020gzh，项目名称:linux，代码行数:53，代码来源:posix_acl.c

示例7: jffs2_set_acl

static int jffs2_set_acl(struct inode *inode, int type, struct posix_acl *acl)
{
	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
	int rc, xprefix;

	if (S_ISLNK(inode->i_mode))
		return -EOPNOTSUPP;

	switch (type) {
	case ACL_TYPE_ACCESS:
		xprefix = JFFS2_XPREFIX_ACL_ACCESS;
		if (acl) {
			mode_t mode = inode->i_mode;
			rc = posix_acl_equiv_mode(acl, &mode);
			if (rc < 0)
				return rc;
			if (inode->i_mode != mode) {
				struct iattr attr;

				attr.ia_valid = ATTR_MODE;
				attr.ia_mode = mode;
				rc = jffs2_do_setattr(inode, &attr);
				if (rc < 0)
					return rc;
			}
			if (rc == 0)
				acl = NULL;
		}
		break;
	case ACL_TYPE_DEFAULT:
		xprefix = JFFS2_XPREFIX_ACL_DEFAULT;
		if (!S_ISDIR(inode->i_mode))
			return acl ? -EACCES : 0;
		break;
	default:
		return -EINVAL;
	}
	rc = __jffs2_set_acl(inode, xprefix, acl);
	if (!rc) {
		switch(type) {
		case ACL_TYPE_ACCESS:
			jffs2_iset_acl(inode, &f->i_acl_access, acl);
			break;
		case ACL_TYPE_DEFAULT:
			jffs2_iset_acl(inode, &f->i_acl_default, acl);
			break;
		}
	}
	return rc;
}

开发者ID:458941968，项目名称:mini2440-kernel-2.6.29，代码行数:50，代码来源:acl.c

示例8: generic_acl_set

/**
 * generic_acl_set  -  Generic xattr_handler->set() operation
 * @ops:    Filesystem specific getacl and setacl callbacks
 */
int
generic_acl_set(struct inode *inode, struct generic_acl_operations *ops,
        int type, const void *value, size_t size)
{
    struct posix_acl *acl = NULL;
    int error;

    if (S_ISLNK(inode->i_mode))
        return -EOPNOTSUPP;
    if (!is_owner_or_cap(inode))
        return -EPERM;
    if (value) {
        acl = posix_acl_from_xattr(value, size);
        if (IS_ERR(acl))
            return PTR_ERR(acl);
    }
    if (acl) {
        mode_t mode;

        error = posix_acl_valid(acl);
        if (error)
            goto failed;
        switch(type) {
            case ACL_TYPE_ACCESS:
                mode = inode->i_mode;
                error = posix_acl_equiv_mode(acl, &mode);
                if (error < 0)
                    goto failed;
                inode->i_mode = mode;
                if (error == 0) {
                    posix_acl_release(acl);
                    acl = NULL;
                }
                break;

            case ACL_TYPE_DEFAULT:
                if (!S_ISDIR(inode->i_mode)) {
                    error = -EINVAL;
                    goto failed;
                }
                break;
        }
    }
    ops->setacl(inode, type, acl);
    error = 0;
failed:
    posix_acl_release(acl);
    return error;
}

开发者ID:274914765，项目名称:C，代码行数:53，代码来源:generic_acl.c

示例9: can_set_system_xattr

static int can_set_system_xattr(struct inode *inode, const char *name,
				const void *value, size_t size)
{
#ifdef CONFIG_HFSPLUS_FS_POSIX_ACL
	struct posix_acl *acl;
	int err;

	if (!inode_owner_or_capable(inode))
		return -EPERM;

	/*
	 * POSIX_ACL_XATTR_ACCESS is tied to i_mode
	 */
	if (strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0) {
		acl = posix_acl_from_xattr(&init_user_ns, value, size);
		if (IS_ERR(acl))
			return PTR_ERR(acl);
		if (acl) {
			err = posix_acl_equiv_mode(acl, &inode->i_mode);
			posix_acl_release(acl);
			if (err < 0)
				return err;
			mark_inode_dirty(inode);
		}
		/*
		 * We're changing the ACL.  Get rid of the cached one
		 */
		forget_cached_acl(inode, ACL_TYPE_ACCESS);

		return 0;
	} else if (strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0) {
		acl = posix_acl_from_xattr(&init_user_ns, value, size);
		if (IS_ERR(acl))
			return PTR_ERR(acl);
		posix_acl_release(acl);

		/*
		 * We're changing the default ACL.  Get rid of the cached one
		 */
		forget_cached_acl(inode, ACL_TYPE_DEFAULT);

		return 0;
	}
#endif /* CONFIG_HFSPLUS_FS_POSIX_ACL */
	return -EOPNOTSUPP;
}

开发者ID:AeroGirl，项目名称:VAR-SOM-AM33-SDK7-Kernel，代码行数:46，代码来源:xattr.c

示例10: gfs2_xattr_system_set

static int gfs2_xattr_system_set(struct dentry *dentry, const char *name,
				 const void *value, size_t size, int flags,
				 int xtype)
{
	struct inode *inode = dentry->d_inode;
	struct gfs2_sbd *sdp = GFS2_SB(inode);
	struct posix_acl *acl = NULL;
	int error = 0, type;

	if (!sdp->sd_args.ar_posix_acl)
		return -EOPNOTSUPP;

	type = gfs2_acl_type(name);
	if (type < 0)
		return type;
	if (flags & XATTR_CREATE)
		return -EINVAL;
	if (type == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
		return value ? -EACCES : 0;
	if ((current_fsuid() != inode->i_uid) && !capable(CAP_FOWNER))
		return -EPERM;
	if (S_ISLNK(inode->i_mode))
		return -EOPNOTSUPP;

	if (!value)
		goto set_acl;

	acl = posix_acl_from_xattr(value, size);
	if (!acl) {
		/*
		 * acl_set_file(3) may request that we set default ACLs with
		 * zero length -- defend (gracefully) against that here.
		 */
		goto out;
	}
	if (IS_ERR(acl)) {
		error = PTR_ERR(acl);
		goto out;
	}

	error = posix_acl_valid(acl);
	if (error)
		goto out_release;

	error = -EINVAL;
	if (acl->a_count > GFS2_ACL_MAX_ENTRIES)
		goto out_release;

	if (type == ACL_TYPE_ACCESS) {
		umode_t mode = inode->i_mode;
		error = posix_acl_equiv_mode(acl, &mode);

		if (error <= 0) {
			posix_acl_release(acl);
			acl = NULL;

			if (error < 0)
				return error;
		}

		error = gfs2_set_mode(inode, mode);
		if (error)
			goto out_release;
	}

set_acl:
	error = __gfs2_xattr_set(inode, name, value, size, 0, GFS2_EATYPE_SYS);
	if (!error) {
		if (acl)
			set_cached_acl(inode, type, acl);
		else
			forget_cached_acl(inode, type);
	}
out_release:
	posix_acl_release(acl);
out:
	return error;
}

开发者ID:ARMWorks，项目名称:FA_2451_Linux_Kernel，代码行数:78，代码来源:acl.c

示例11: NFS_SERVER

struct posix_acl *nfs3_proc_getacl(struct inode *inode, int type)
{
	struct nfs_server *server = NFS_SERVER(inode);
	struct nfs_fattr fattr;
	struct page *pages[NFSACL_MAXPAGES] = { };
	struct nfs3_getaclargs args = {
		.fh = NFS_FH(inode),
		/* The xdr layer may allocate pages here. */
		.pages = pages,
	};
	struct nfs3_getaclres res = {
		.fattr =	&fattr,
	};
	struct rpc_message msg = {
		.rpc_argp	= &args,
		.rpc_resp	= &res,
	};
	struct posix_acl *acl;
	int status, count;

	if (!nfs_server_capable(inode, NFS_CAP_ACLS))
		return ERR_PTR(-EOPNOTSUPP);

	status = nfs_revalidate_inode(server, inode);
	if (status < 0)
		return ERR_PTR(status);
	if (NFS_I(inode)->cache_validity & NFS_INO_INVALID_ACL)
		nfs_zap_acl_cache(inode);
	acl = nfs3_get_cached_acl(inode, type);
	if (acl != ERR_PTR(-EAGAIN))
		return acl;
	acl = NULL;

	/*
	 * Only get the access acl when explicitly requested: We don't
	 * need it for access decisions, and only some applications use
	 * it. Applications which request the access acl first are not
	 * penalized from this optimization.
	 */
	if (type == ACL_TYPE_ACCESS)
		args.mask |= NFS_ACLCNT|NFS_ACL;
	if (S_ISDIR(inode->i_mode))
		args.mask |= NFS_DFACLCNT|NFS_DFACL;
	if (args.mask == 0)
		return NULL;

	dprintk("NFS call getacl\n");
	msg.rpc_proc = &server->client_acl->cl_procinfo[ACLPROC3_GETACL];
	nfs_fattr_init(&fattr);
	status = rpc_call_sync(server->client_acl, &msg, 0);
	dprintk("NFS reply getacl: %d\n", status);

	/* pages may have been allocated at the xdr layer. */
	for (count = 0; count < NFSACL_MAXPAGES && args.pages[count]; count++)
		__free_page(args.pages[count]);

	switch (status) {
		case 0:
			status = nfs_refresh_inode(inode, &fattr);
			break;
		case -EPFNOSUPPORT:
		case -EPROTONOSUPPORT:
			dprintk("NFS_V3_ACL extension not supported; disabling\n");
			server->caps &= ~NFS_CAP_ACLS;
		case -ENOTSUPP:
			status = -EOPNOTSUPP;
		default:
			goto getout;
	}
	if ((args.mask & res.mask) != args.mask) {
		status = -EIO;
		goto getout;
	}

	if (res.acl_access != NULL) {
		if (posix_acl_equiv_mode(res.acl_access, NULL) == 0) {
			posix_acl_release(res.acl_access);
			res.acl_access = NULL;
		}
	}
	nfs3_cache_acls(inode,
		(res.mask & NFS_ACL)   ? res.acl_access  : ERR_PTR(-EINVAL),
		(res.mask & NFS_DFACL) ? res.acl_default : ERR_PTR(-EINVAL));

	switch(type) {
		case ACL_TYPE_ACCESS:
			acl = res.acl_access;
			res.acl_access = NULL;
			break;

		case ACL_TYPE_DEFAULT:
			acl = res.acl_default;
			res.acl_default = NULL;
	}

getout:
	posix_acl_release(res.acl_access);
	posix_acl_release(res.acl_default);

	if (status != 0) {
//.........这里部分代码省略.........

开发者ID:johnny，项目名称:CobraDroidBeta，代码行数:101，代码来源:nfs3acl.c

示例12: reiserfs_set_acl

/*
 * Inode operation set_posix_acl().
 *
 * inode->i_sem: down
 * BKL held [before 2.5.x]
 */
static int
reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
{
        char *name;
	void *value = NULL;
	struct posix_acl **p_acl;
	size_t size;
	int error;
        struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);

	if (S_ISLNK(inode->i_mode))
		return -EOPNOTSUPP;

        switch (type) {
            case ACL_TYPE_ACCESS:
                name = XATTR_NAME_ACL_ACCESS;
                p_acl = &reiserfs_i->i_acl_access;
                if (acl) {
                    mode_t mode = inode->i_mode;
                    error = posix_acl_equiv_mode (acl, &mode);
                    if (error < 0)
                        return error;
                    else {
                        inode->i_mode = mode;
                        if (error == 0)
                            acl = NULL;
                    }
                }
                break;
            case ACL_TYPE_DEFAULT:
                name = XATTR_NAME_ACL_DEFAULT;
                p_acl = &reiserfs_i->i_acl_default;
                if (!S_ISDIR (inode->i_mode))
                    return acl ? -EACCES : 0;
                break;
            default:
                return -EINVAL;
        }

 	if (acl) {
            value = posix_acl_to_disk(acl, &size);
            if (IS_ERR(value))
                return (int)PTR_ERR(value);
            error = reiserfs_xattr_set(inode, name, value, size, 0);
	} else {
            error = reiserfs_xattr_del (inode, name);
            if (error == -ENODATA) {
                /* This may seem odd here, but it means that the ACL was set
                 * with a value representable with mode bits. If there was
                 * an ACL before, reiserfs_xattr_del already dirtied the inode.
                 */
                mark_inode_dirty (inode);
                error = 0;
            }
        }

	if (value)
		kfree(value);

        if (!error) {
            /* Release the old one */
            if (!IS_ERR (*p_acl) && *p_acl)
                posix_acl_release (*p_acl);

            if (acl == NULL)
                *p_acl = ERR_PTR (-ENODATA);
            else
                *p_acl = posix_acl_dup (acl);
        }

	return error;
}

开发者ID:Dronevery，项目名称:JetsonTK1-kernel，代码行数:78，代码来源:xattr_acl.c

示例13: xfs_xattr_acl_set

static int
xfs_xattr_acl_set(struct dentry *dentry, const char *name,
		const void *value, size_t size, int flags, int type)
{
	struct inode *inode = dentry->d_inode;
	struct posix_acl *acl = NULL;
	int error = 0;

	if (flags & XATTR_CREATE)
		return -EINVAL;
	if (type == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
		return value ? -EACCES : 0;
	if (!inode_owner_or_capable(inode))
		return -EPERM;

	if (!value)
		goto set_acl;

	acl = posix_acl_from_xattr(&init_user_ns, value, size);
	if (!acl) {
		/*
		 * acl_set_file(3) may request that we set default ACLs with
		 * zero length -- defend (gracefully) against that here.
		 */
		goto out;
	}
	if (IS_ERR(acl)) {
		error = PTR_ERR(acl);
		goto out;
	}

	error = posix_acl_valid(acl);
	if (error)
		goto out_release;

	error = -EINVAL;
	if (acl->a_count > XFS_ACL_MAX_ENTRIES(XFS_M(inode->i_sb)))
		goto out_release;

	if (type == ACL_TYPE_ACCESS) {
		umode_t mode = inode->i_mode;
		error = posix_acl_equiv_mode(acl, &mode);

		if (error <= 0) {
			posix_acl_release(acl);
			acl = NULL;

			if (error < 0)
				return error;
		}

		error = xfs_set_mode(inode, mode);
		if (error)
			goto out_release;
	}

 set_acl:
	error = xfs_set_acl(inode, type, acl);
 out_release:
	posix_acl_release(acl);
 out:
	return error;
}

开发者ID:aplnosun，项目名称:linux，代码行数:63，代码来源:xfs_acl.c

示例14: pvfs2_set_acl

static int
pvfs2_set_acl(struct inode *inode, int type, struct posix_acl *acl)
{
    int error = 0;
    void *value = NULL;
    size_t size = 0;
    const char *name = NULL;
    pvfs2_inode_t *pvfs2_inode = PVFS2_I(inode);

    /* We dont't allow this on a symbolic link */
    if (S_ISLNK(inode->i_mode))
    {
        gossip_err("pvfs2_set_acl: disallow on symbolic links\n");
        return -EACCES;
    }
    /* if ACL option is not set, then we return early */
    if (get_acl_flag(inode) == 0)
    {
        gossip_debug(GOSSIP_ACL_DEBUG, "pvfs2_set_acl: ACL options disabled on"
                "this FS!\n");
        return 0;
    }
    switch (type)
    {
        case ACL_TYPE_ACCESS:
        {
            name = PVFS2_XATTR_NAME_ACL_ACCESS;
            if (acl) 
            {
                mode_t mode = inode->i_mode;
                /* can we represent this with the UNIXy permission bits? */
                error = posix_acl_equiv_mode(acl, &mode);
                /* uh oh some error.. */
                if (error < 0) 
                {
                    gossip_err("pvfs2_set_acl: posix_acl_equiv_mode error %d\n", 
                            error);
                    return error;
                }
                else /* okay, go ahead and do just that */
                {
                    if (inode->i_mode != mode)
                        SetModeFlag(pvfs2_inode);
                    inode->i_mode = mode;
                    mark_inode_dirty_sync(inode);
                    if (error == 0) /* equivalent. so dont set acl! */
                        acl = NULL;
                }
            }
            break;
        }
        case ACL_TYPE_DEFAULT:
        {
            name = PVFS2_XATTR_NAME_ACL_DEFAULT;
            /* Default ACLs cannot be set/modified for non-directory objects! */
            if (!S_ISDIR(inode->i_mode))
            {
                gossip_debug(GOSSIP_ACL_DEBUG, "pvfs2_set_acl: setting default "
                        "ACLs on non-dir object? %s\n",
                        acl ? "disallowed" : "ok");
                return acl ? -EACCES : 0;
            }
            break;
        }
        default:
        {
            gossip_err("pvfs2_set_acl: invalid type %d!\n", type);
            return -EINVAL;
        }
    }
    gossip_debug(GOSSIP_ACL_DEBUG, "pvfs2_set_acl: inode %llu, key %s type %d\n",
            llu(get_handle_from_ino(inode)), name, type);
    /* If we do have an access control list, then we need to encode that! */
    if (acl) 
    {
        value = pvfs2_acl_encode(acl, &size);
        if (IS_ERR(value))
        {
            return (int) PTR_ERR(value);
        }
    }
    gossip_debug(GOSSIP_ACL_DEBUG, "pvfs2_set_acl: name %s, value %p, size %zd, "
            " acl %p\n", name, value, size, acl);
    /* Go ahead and set the extended attribute now 
     * NOTE: Suppose acl was NULL, then value will be NULL and 
     * size will be 0 and that will xlate to a removexattr.
     * However, we dont want removexattr complain if attributes
     * does not exist.
     */
    error = pvfs2_inode_setxattr(inode, "", name, value, size, 0);
    if (value) 
    {
        kfree(value);
    }
    return error;
}

开发者ID:Goon83，项目名称:SALB，代码行数:96，代码来源:acl.c

示例15: ext3_do_set_acl

/*
 * inode->i_sem: down, or inode is just being initialized
 * BKL: held
 */
static int
ext3_do_set_acl(handle_t *handle, struct inode *inode, int type,
		struct posix_acl *acl)
{
	struct ext3_inode_info *ei = EXT3_I(inode);
	int name_index;
	void *value = NULL;
	size_t size;
	int error;

	if (S_ISLNK(inode->i_mode))
		return -ENODATA;

	switch(type) {
		case ACL_TYPE_ACCESS:
			name_index = EXT3_XATTR_INDEX_POSIX_ACL_ACCESS;
			if (acl) {
				mode_t mode = inode->i_mode;
				error = posix_acl_equiv_mode(acl, &mode);
				if (error < 0)
					return error;
				else {
					inode->i_mode = mode;
					ext3_mark_inode_dirty(handle, inode);
					if (error == 0)
						acl = NULL;
				}
			}
			break;

		case ACL_TYPE_DEFAULT:
			name_index = EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT;
			if (!S_ISDIR(inode->i_mode))
				return acl ? -EACCES : 0;
			break;

		default:
			return -EINVAL;
	}
 	if (acl) {
		if (acl->a_count > EXT3_ACL_MAX_ENTRIES)
			return -EINVAL;
		value = ext3_acl_to_disk(acl, &size);
		if (IS_ERR(value))
			return (int)PTR_ERR(value);
	}

	error = ext3_xattr_set_handle(handle, inode, name_index, "",
				      value, size, 0);

	if (value)
		kfree(value);
	if (!error) {
		switch(type) {
			case ACL_TYPE_ACCESS:
				if (ei->i_acl != EXT3_ACL_NOT_CACHED)
					posix_acl_release(ei->i_acl);
				ei->i_acl = posix_acl_dup(acl);
				break;

			case ACL_TYPE_DEFAULT:
				if (ei->i_default_acl != EXT3_ACL_NOT_CACHED)
					posix_acl_release(ei->i_default_acl);
				ei->i_default_acl = posix_acl_dup(acl);
				break;
		}
	}
	return error;
}

开发者ID:jameshilliard，项目名称:actiontec_opensrc_mi424wr-rev-e-f_fw-20-10-7-5，代码行数:73，代码来源:acl.c

示例16: ext2_set_acl

/*
 * inode->i_mutex: down
 */
static int
ext2_set_acl(struct inode *inode, int type, struct posix_acl *acl)
{
	struct ext2_inode_info *ei = EXT2_I(inode);
	int name_index;
	void *value = NULL;
	size_t size = 0;
	int error;

	if (S_ISLNK(inode->i_mode))
		return -EOPNOTSUPP;
	if (!test_opt(inode->i_sb, POSIX_ACL))
		return 0;

	switch(type) {
		case ACL_TYPE_ACCESS:
			name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS;
			if (acl) {
				mode_t mode = inode->i_mode;
				error = posix_acl_equiv_mode(acl, &mode);
				if (error < 0)
					return error;
				else {
					inode->i_mode = mode;
					mark_inode_dirty(inode);
					if (error == 0)
						acl = NULL;
				}
			}
			break;

		case ACL_TYPE_DEFAULT:
			name_index = EXT2_XATTR_INDEX_POSIX_ACL_DEFAULT;
			if (!S_ISDIR(inode->i_mode))
				return acl ? -EACCES : 0;
			break;

		default:
			return -EINVAL;
	}
 	if (acl) {
		value = ext2_acl_to_disk(acl, &size);
		if (IS_ERR(value))
			return (int)PTR_ERR(value);
	}

	error = ext2_xattr_set(inode, name_index, "", value, size, 0);

	kfree(value);
	if (!error) {
		switch(type) {
			case ACL_TYPE_ACCESS:
				ext2_iset_acl(inode, &ei->i_acl, acl);
				break;

			case ACL_TYPE_DEFAULT:
				ext2_iset_acl(inode, &ei->i_default_acl, acl);
				break;
		}
	}
	return error;
}

开发者ID:458941968，项目名称:mini2440-kernel-2.6.29，代码行数:65，代码来源:acl.c

示例17: zpl_set_acl

int
zpl_set_acl(struct inode *ip, int type, struct posix_acl *acl)
{
	struct super_block *sb = ITOZSB(ip)->z_sb;
	char *name, *value = NULL;
	int error = 0;
	size_t size = 0;

	if (S_ISLNK(ip->i_mode))
		return (-EOPNOTSUPP);

	switch(type) {
	case ACL_TYPE_ACCESS:
		name = POSIX_ACL_XATTR_ACCESS;
		if (acl) {
			zpl_equivmode_t mode = ip->i_mode;
			error = posix_acl_equiv_mode(acl, &mode);
			if (error < 0) {
				return (error);
			} else {
				/*
				 * The mode bits will have been set by
				 * ->zfs_setattr()->zfs_acl_chmod_setattr()
				 * using the ZFS ACL conversion.  If they
				 * differ from the Posix ACL conversion dirty
				 * the inode to write the Posix mode bits.
				 */
				if (ip->i_mode != mode) {
					ip->i_mode = mode;
					ip->i_ctime = current_fs_time(sb);
					mark_inode_dirty(ip);
				}

				if (error == 0)
					acl = NULL;
			}
		}
		break;

	case ACL_TYPE_DEFAULT:
		name = POSIX_ACL_XATTR_DEFAULT;
		if (!S_ISDIR(ip->i_mode))
			return (acl ? -EACCES : 0);
		break;

	default:
		return (-EINVAL);
	}

	if (acl) {
		size = posix_acl_xattr_size(acl->a_count);
		value = kmem_alloc(size, KM_SLEEP);

		error = zpl_acl_to_xattr(acl, value, size);
		if (error < 0) {
			kmem_free(value, size);
			return (error);
		}
	}

	error = zpl_xattr_set(ip, name, value, size, 0);
	if (value)
		kmem_free(value, size);

	if (!error) {
		if (acl)
			zpl_set_cached_acl(ip, type, acl);
		else
			zpl_forget_cached_acl(ip, type);
	}

	return (error);
}

开发者ID:mschirmacher，项目名称:zfs，代码行数:73，代码来源:zpl_xattr.c

示例18: ceph_set_acl

int ceph_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
	int ret = 0, size = 0;
	const char *name = NULL;
	char *value = NULL;
	struct iattr newattrs;
	umode_t new_mode = inode->i_mode, old_mode = inode->i_mode;
	struct dentry *dentry;

	switch (type) {
	case ACL_TYPE_ACCESS:
		name = XATTR_NAME_POSIX_ACL_ACCESS;
		if (acl) {
			ret = posix_acl_equiv_mode(acl, &new_mode);
			if (ret < 0)
				goto out;
			if (ret == 0)
				acl = NULL;
		}
		break;
	case ACL_TYPE_DEFAULT:
		if (!S_ISDIR(inode->i_mode)) {
			ret = acl ? -EINVAL : 0;
			goto out;
		}
		name = XATTR_NAME_POSIX_ACL_DEFAULT;
		break;
	default:
		ret = -EINVAL;
		goto out;
	}

	if (acl) {
		size = posix_acl_xattr_size(acl->a_count);
		value = kmalloc(size, GFP_NOFS);
		if (!value) {
			ret = -ENOMEM;
			goto out;
		}

		ret = posix_acl_to_xattr(&init_user_ns, acl, value, size);
		if (ret < 0)
			goto out_free;
	}

	dentry = d_find_alias(inode);
	if (new_mode != old_mode) {
		newattrs.ia_mode = new_mode;
		newattrs.ia_valid = ATTR_MODE;
		ret = ceph_setattr(dentry, &newattrs);
		if (ret)
			goto out_dput;
	}

	ret = __ceph_setxattr(dentry, name, value, size, 0);
	if (ret) {
		if (new_mode != old_mode) {
			newattrs.ia_mode = old_mode;
			newattrs.ia_valid = ATTR_MODE;
			ceph_setattr(dentry, &newattrs);
		}
		goto out_dput;
	}

	ceph_set_cached_acl(inode, type, acl);

out_dput:
	dput(dentry);
out_free:
	kfree(value);
out:
	return ret;
}

开发者ID:020gzh，项目名称:linux，代码行数:73，代码来源:acl.c

示例19: v9fs_xattr_set_acl

static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
			      const void *value, size_t size,
			      int flags, int type)
{
	int retval;
	struct posix_acl *acl;
	struct v9fs_session_info *v9ses;
	struct inode *inode = dentry->d_inode;

	if (strcmp(name, "") != 0)
		return -EINVAL;

	v9ses = v9fs_dentry2v9ses(dentry);
	/*
	 * set the attribute on the remote. Without even looking at the
	 * xattr value. We leave it to the server to validate
	 */
	if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT)
		return v9fs_remote_set_acl(dentry, name,
					   value, size, flags, type);

	if (S_ISLNK(inode->i_mode))
		return -EOPNOTSUPP;
	if (!inode_owner_or_capable(inode))
		return -EPERM;
	if (value) {
		/* update the cached acl value */
		acl = posix_acl_from_xattr(value, size);
		if (IS_ERR(acl))
			return PTR_ERR(acl);
		else if (acl) {
			retval = posix_acl_valid(acl);
			if (retval)
				goto err_out;
		}
	} else
		acl = NULL;

	switch (type) {
	case ACL_TYPE_ACCESS:
		name = POSIX_ACL_XATTR_ACCESS;
		if (acl) {
			mode_t mode = inode->i_mode;
			retval = posix_acl_equiv_mode(acl, &mode);
			if (retval < 0)
				goto err_out;
			else {
				struct iattr iattr;
				if (retval == 0) {
					/*
					 * ACL can be represented
					 * by the mode bits. So don't
					 * update ACL.
					 */
					acl = NULL;
					value = NULL;
					size = 0;
				}
				/* Updte the mode bits */
				iattr.ia_mode = ((mode & S_IALLUGO) |
						 (inode->i_mode & ~S_IALLUGO));
				iattr.ia_valid = ATTR_MODE;
				/* FIXME should we update ctime ?
				 * What is the following setxattr update the
				 * mode ?
				 */
				v9fs_vfs_setattr_dotl(dentry, &iattr);
			}
		}
		break;
	case ACL_TYPE_DEFAULT:
		name = POSIX_ACL_XATTR_DEFAULT;
		if (!S_ISDIR(inode->i_mode)) {
			retval = acl ? -EINVAL : 0;
			goto err_out;
		}
		break;
	default:
		BUG();
	}
	retval = v9fs_xattr_set(dentry, name, value, size, flags);
	if (!retval)
		set_cached_acl(inode, type, acl);
err_out:
	posix_acl_release(acl);
	return retval;
}

开发者ID:padovan，项目名称:bluetooth-next，代码行数:87，代码来源:acl.c

示例20: reiserfs_set_acl

/*
 * Inode operation set_posix_acl().
 *
 * inode->i_mutex: down
 * BKL held [before 2.5.x]
 */
static int
reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
		 int type, struct posix_acl *acl)
{
	char *name;
	void *value = NULL;
	size_t size = 0;
	int error;

	if (S_ISLNK(inode->i_mode))
		return -EOPNOTSUPP;

	switch (type) {
	case ACL_TYPE_ACCESS:
		name = POSIX_ACL_XATTR_ACCESS;
		if (acl) {
			error = posix_acl_equiv_mode(acl, &inode->i_mode);
			if (error < 0)
				return error;
			else {
				if (error == 0)
					acl = NULL;
			}
		}
		break;
	case ACL_TYPE_DEFAULT:
		name = POSIX_ACL_XATTR_DEFAULT;
		if (!S_ISDIR(inode->i_mode))
			return acl ? -EACCES : 0;
		break;
	default:
		return -EINVAL;
	}

	if (acl) {
		value = posix_acl_to_disk(acl, &size);
		if (IS_ERR(value))
			return (int)PTR_ERR(value);
	}

	error = reiserfs_xattr_set_handle(th, inode, name, value, size, 0);

	/*
	 * Ensure that the inode gets dirtied if we're only using
	 * the mode bits and an old ACL didn't exist. We don't need
	 * to check if the inode is hashed here since we won't get
	 * called by reiserfs_inherit_default_acl().
	 */
	if (error == -ENODATA) {
		error = 0;
		if (type == ACL_TYPE_ACCESS) {
			inode->i_ctime = CURRENT_TIME_SEC;
			mark_inode_dirty(inode);
		}
	}

	kfree(value);

	if (!error)
		set_cached_acl(inode, type, acl);

	return error;
}

开发者ID:AD5GB，项目名称:kernel_n5_3.10-experimental，代码行数:69，代码来源:xattr_acl.c

注：本文中的posix_acl_equiv_mode函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ posix_acl_equiv_mode函数代码示例

示例1: btrfs_set_acl

示例2: f2fs_set_acl

示例3: jffs2_set_acl

示例4: ocfs2_set_acl

示例5: generic_acl_set

示例6: hfsplus_set_posix_acl

示例7: jffs2_set_acl

示例8: generic_acl_set

示例9: can_set_system_xattr

示例10: gfs2_xattr_system_set

示例11: NFS_SERVER

示例12: reiserfs_set_acl

示例13: xfs_xattr_acl_set

示例14: pvfs2_set_acl

示例15: ext3_do_set_acl

示例16: ext2_set_acl

示例17: zpl_set_acl

示例18: ceph_set_acl

示例19: v9fs_xattr_set_acl

示例20: reiserfs_set_acl

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