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C++ posix_acl_from_xattr函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中posix_acl_from_xattr函数的典型用法代码示例。如果您正苦于以下问题：C++ posix_acl_from_xattr函数的具体用法？C++ posix_acl_from_xattr怎么用？C++ posix_acl_from_xattr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_from_xattr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: jffs2_acl_setxattr

static int jffs2_acl_setxattr(struct inode *inode, int type, const void *value, size_t size)
{
	struct posix_acl *acl;
	int rc;

	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) {
			rc = posix_acl_valid(acl);
			if (rc)
				goto out;
		}
	} else {
		acl = NULL;
	}
	rc = jffs2_set_acl(inode, type, acl);
 out:
	posix_acl_release(acl);
	return rc;
}
开发者ID:cilynx，项目名称:dd-wrt，代码行数:25，代码来源:acl.c


示例2: v9fs_fid_xattr_get

static struct posix_acl *__v9fs_get_acl(struct p9_fid *fid, char *name)
{
	ssize_t size;
	void *value = NULL;
	struct posix_acl *acl = NULL;

	size = v9fs_fid_xattr_get(fid, name, NULL, 0);
	if (size > 0) {
		value = kzalloc(size, GFP_NOFS);
		if (!value)
			return ERR_PTR(-ENOMEM);
		size = v9fs_fid_xattr_get(fid, name, value, size);
		if (size > 0) {
			acl = posix_acl_from_xattr(&init_user_ns, value, size);
			if (IS_ERR(acl))
				goto err_out;
		}
	} else if (size == -ENODATA || size == 0 ||
		   size == -ENOSYS || size == -EOPNOTSUPP) {
		acl = NULL;
	} else
		acl = ERR_PTR(-EIO);

err_out:
	kfree(value);
	return acl;
}
开发者ID:acton393，项目名称:linux，代码行数:27，代码来源:acl.c


示例3: get_fuse_conn

struct posix_acl *fuse_get_acl(struct inode *inode, int type)
{
	struct fuse_conn *fc = get_fuse_conn(inode);
	int size;
	const char *name;
	void *value = NULL;
	struct posix_acl *acl;

	if (!fc->posix_acl || fc->no_getxattr)
		return NULL;

	if (type == ACL_TYPE_ACCESS)
		name = XATTR_NAME_POSIX_ACL_ACCESS;
	else if (type == ACL_TYPE_DEFAULT)
		name = XATTR_NAME_POSIX_ACL_DEFAULT;
	else
		return ERR_PTR(-EOPNOTSUPP);

	value = kmalloc(PAGE_SIZE, GFP_KERNEL);
	if (!value)
		return ERR_PTR(-ENOMEM);
	size = fuse_getxattr(inode, name, value, PAGE_SIZE);
	if (size > 0)
		acl = posix_acl_from_xattr(&init_user_ns, value, size);
	else if ((size == 0) || (size == -ENODATA) ||
		 (size == -EOPNOTSUPP && fc->no_getxattr))
		acl = NULL;
	else if (size == -ERANGE)
		acl = ERR_PTR(-E2BIG);
	else
		acl = ERR_PTR(size);

	kfree(value);
	return acl;
}
开发者ID:AshishNamdev，项目名称:linux，代码行数:35，代码来源:acl.c


示例4: ext2_xattr_set_acl

static int
ext2_xattr_set_acl(struct dentry *dentry, const char *name, const void *value,
		   size_t size, int flags, int type)
{
	struct posix_acl *acl;
	int error;

	if (strcmp(name, "") != 0)
		return -EINVAL;
	if (!test_opt(dentry->d_sb, POSIX_ACL))
		return -EOPNOTSUPP;
	if (!inode_owner_or_capable(dentry->d_inode))
		return -EPERM;

	if (value) {
		acl = posix_acl_from_xattr(value, size);
		if (IS_ERR(acl))
			return PTR_ERR(acl);
		else if (acl) {
			error = posix_acl_valid(acl);
			if (error)
				goto release_and_out;
		}
	} else
		acl = NULL;

	error = ext2_set_acl(dentry->d_inode, type, acl);

release_and_out:
	posix_acl_release(acl);
	return error;
}
开发者ID:MiniBlu，项目名称:cm11_kernel_htc_msm8974a3ul，代码行数:32，代码来源:acl.c


示例5: GFS2_I

struct posix_acl *gfs2_get_acl(struct inode *inode, int type)
{
	struct gfs2_inode *ip = GFS2_I(inode);
	struct posix_acl *acl;
	const char *name;
	char *data;
	int len;

	if (!ip->i_eattr)
		return NULL;

	acl = get_cached_acl(&ip->i_inode, type);
	if (acl != ACL_NOT_CACHED)
		return acl;

	name = gfs2_acl_name(type);
	if (name == NULL)
		return ERR_PTR(-EINVAL);

	len = gfs2_xattr_acl_get(ip, name, &data);
	if (len < 0)
		return ERR_PTR(len);
	if (len == 0)
		return NULL;

	acl = posix_acl_from_xattr(data, len);
	kfree(data);
	return acl;
}
开发者ID:ARMWorks，项目名称:FA_2451_Linux_Kernel，代码行数:29，代码来源:acl.c


示例6: btrfs_xattr_acl_set

static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name,
		const void *value, size_t size, int flags, int type)
{
	int ret;
	struct posix_acl *acl = NULL;

	if (!inode_owner_or_capable(dentry->d_inode))
		return -EPERM;

	if (!IS_POSIXACL(dentry->d_inode))
		return -EOPNOTSUPP;

	if (value) {
		acl = posix_acl_from_xattr(&init_user_ns, value, size);
		if (IS_ERR(acl))
			return PTR_ERR(acl);

		if (acl) {
			ret = posix_acl_valid(acl);
			if (ret)
				goto out;
		}
	}

	ret = btrfs_set_acl(NULL, dentry->d_inode, acl, type);
out:
	posix_acl_release(acl);

	return ret;
}
开发者ID:debbiche，项目名称:android_kernel_huawei_p8，代码行数:30，代码来源:acl.c


示例7: f2fs_xattr_set_acl

static int f2fs_xattr_set_acl(struct dentry *dentry, const char *name,
		const void *value, size_t size, int flags, int type)
{
	struct f2fs_sb_info *sbi = F2FS_SB(dentry->d_sb);
	struct inode *inode = dentry->d_inode;
	struct posix_acl *acl = NULL;
	int error;

	if (strcmp(name, "") != 0)
		return -EINVAL;
	if (!test_opt(sbi, POSIX_ACL))
		return -EOPNOTSUPP;
	if (!inode_owner_or_capable(inode))
		return -EPERM;

	if (value) {
		acl = posix_acl_from_xattr(&init_user_ns, value, size);
		if (IS_ERR(acl))
			return PTR_ERR(acl);
		if (acl) {
			error = posix_acl_valid(acl);
			if (error)
				goto release_and_out;
		}
	} else {
		acl = NULL;
	}

	error = f2fs_set_acl(inode, type, acl, NULL);

release_and_out:
	posix_acl_release(acl);
	return error;
}
开发者ID:AnadoluPanteri，项目名称:kernel-plus-harmattan，代码行数:34，代码来源:acl.c


示例8: pvfs2_xattr_set_acl

static int
pvfs2_xattr_set_acl(struct inode *inode, int type, const void *value,
        size_t size)
{
    struct posix_acl *acl;
    int error;
#ifdef HAVE_CURRENT_FSUID
    int fsuid = current_fsuid();
#else
    int fsuid = current->fsuid;
#endif

    gossip_debug(GOSSIP_ACL_DEBUG, "pvfs2_xattr_set_acl called with size %ld\n",
            (long)size);
    /* if we have not been mounted with acl option, ignore this */
    if (get_acl_flag(inode) == 0)
    {
        gossip_debug(GOSSIP_ACL_DEBUG, "pvfs2_xattr_set_acl: ACL options "
                "disabled on this FS!\n");
        return -EOPNOTSUPP;
    }
    /* Are we capable of setting acls on a file for which we should not be? */
    if ((fsuid != inode->i_uid) && !capable(CAP_FOWNER))
    {
        gossip_err("pvfs2_xattr_set_acl: operation not permitted "
                "(current->fsuid %d), (inode->owner %d)\n", 
                fsuid, inode->i_uid);
        return -EPERM;
    }
    if (value) 
    {
        acl = posix_acl_from_xattr(value, size);
        if (IS_ERR(acl))
        {
            error = PTR_ERR(acl);
            gossip_err("pvfs2_xattr_set_acl: posix_acl_from_xattr returned "
                    "error %d\n", error);
            goto err;
        }
        else if (acl) 
        {
            error = posix_acl_valid(acl);
            if (error)
            {
                gossip_err("pvfs2_xattr_set_acl: posix_acl_valid returned "
                        "error %d\n", error);
                goto out;
            }
        }
    }
    else {
        acl = NULL;
    }
    error = pvfs2_set_acl(inode, type, acl);
    gossip_debug(GOSSIP_ACL_DEBUG, "pvfs2_set_acl returned error %d\n", error);
out:
    posix_acl_release(acl);
err:
    return error;
}
开发者ID:Goon83，项目名称:SALB，代码行数:60，代码来源:acl.c


示例9: btrfs_xattr_acl_set

static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name,
		const void *value, size_t size, int flags, int type)
{
	int ret;
	struct posix_acl *acl = NULL;

	if (!is_owner_or_cap(dentry->d_inode))
		return -EPERM;

	if (!IS_POSIXACL(dentry->d_inode))
		return -EOPNOTSUPP;

	if (value) {
		acl = posix_acl_from_xattr(value, size);
		if (acl == NULL) {
			value = NULL;
			size = 0;
		} else if (IS_ERR(acl)) {
			return PTR_ERR(acl);
		}
	}

	ret = btrfs_set_acl(NULL, dentry->d_inode, acl, type);

	posix_acl_release(acl);

	return ret;
}
开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:28，代码来源:acl.c


示例10: jffs2_acl_setxattr

static int jffs2_acl_setxattr(struct inode *inode, int type, const void *value, size_t size)
{
	struct posix_acl *acl;
	int rc;

	if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
		return -EPERM;

	if (value) {
		acl = posix_acl_from_xattr(value, size);
		if (IS_ERR(acl))
			return PTR_ERR(acl);
		if (acl) {
			rc = posix_acl_valid(acl);
			if (rc)
				goto out;
		}
	} else {
		acl = NULL;
	}
	rc = jffs2_set_acl(inode, type, acl);
 out:
	posix_acl_release(acl);
	return rc;
}
开发者ID:3sOx，项目名称:asuswrt-merlin，代码行数:25，代码来源:acl.c


示例11: xattr_set_acl

static int
xattr_set_acl(struct inode *inode, int type, const void *value, size_t size)
{
	struct posix_acl *acl;
	int error;

	if (!reiserfs_posixacl(inode->i_sb))
		return -EOPNOTSUPP;
	if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
		return -EPERM;

	if (value) {
		acl = posix_acl_from_xattr(value, size);
		if (IS_ERR(acl)) {
			return PTR_ERR(acl);
		} else if (acl) {
			error = posix_acl_valid(acl);
			if (error)
				goto release_and_out;
		}
	} else
		acl = NULL;

	error = reiserfs_set_acl (inode, type, acl);

release_and_out:
	posix_acl_release(acl);
	return error;
}
开发者ID:Dronevery，项目名称:JetsonTK1-kernel，代码行数:29，代码来源:xattr_acl.c


示例12: ocfs2_xattr_set_acl

static int ocfs2_xattr_set_acl(struct inode *inode,
			       int type,
			       const void *value,
			       size_t size)
{
	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
	struct posix_acl *acl;
	int ret = 0;

	if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
		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);
		else if (acl) {
			ret = posix_acl_valid(acl);
			if (ret)
				goto cleanup;
		}
	} else
		acl = NULL;

	ret = ocfs2_set_acl(NULL, inode, NULL, type, acl, NULL, NULL);

cleanup:
	posix_acl_release(acl);
	return ret;
}
开发者ID:ms79723，项目名称:linux-2.6.32.26-inc，代码行数:33，代码来源:acl.c


示例13: switch

struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
{
	int size;
	const char *name;
	char *value = NULL;
	struct posix_acl *acl;

	switch (type) {
	case ACL_TYPE_ACCESS:
		name = XATTR_NAME_POSIX_ACL_ACCESS;
		break;
	case ACL_TYPE_DEFAULT:
		name = XATTR_NAME_POSIX_ACL_DEFAULT;
		break;
	default:
		return ERR_PTR(-EINVAL);
	}

	size = btrfs_getxattr(inode, name, NULL, 0);
	if (size > 0) {
		value = kzalloc(size, GFP_KERNEL);
		if (!value)
			return ERR_PTR(-ENOMEM);
		size = btrfs_getxattr(inode, name, value, size);
	}
	if (size > 0)
		acl = posix_acl_from_xattr(&init_user_ns, value, size);
	else if (size == -ENODATA || size == 0)
		acl = NULL;
	else
		acl = ERR_PTR(size);
	kfree(value);

	return acl;
}
开发者ID:avagin，项目名称:linux，代码行数:35，代码来源:acl.c


示例14: ext2_xattr_set_acl

static int
ext2_xattr_set_acl(struct inode *inode, int type, const void *value,
		   size_t size)
{
	struct posix_acl *acl;
	int error;

	if (!test_opt(inode->i_sb, POSIX_ACL))
		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);
		else if (acl) {
			error = posix_acl_valid(acl);
			if (error)
				goto release_and_out;
		}
	} else
		acl = NULL;

	error = ext2_set_acl(inode, type, acl);

release_and_out:
	posix_acl_release(acl);
	return error;
}
开发者ID:458941968，项目名称:mini2440-kernel-2.6.29，代码行数:30，代码来源:acl.c


示例15: ocfs2_xattr_set_acl

static int ocfs2_xattr_set_acl(struct dentry *dentry, const char *name,
		const void *value, size_t size, int flags, int type)
{
	struct inode *inode = dentry->d_inode;
	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
	struct posix_acl *acl;
	int ret = 0;

	if (strcmp(name, "") != 0)
		return -EINVAL;
	if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
		return -EOPNOTSUPP;

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

	if (value) {
		acl = posix_acl_from_xattr(&init_user_ns, value, size);
		if (IS_ERR(acl))
			return PTR_ERR(acl);
		else if (acl) {
			ret = posix_acl_valid(acl);
			if (ret)
				goto cleanup;
		}
	} else
		acl = NULL;

	ret = ocfs2_set_acl(NULL, inode, NULL, type, acl, NULL, NULL);

cleanup:
	posix_acl_release(acl);
	return ret;
}
开发者ID:AeroGirl，项目名称:VAR-SOM-AM33-SDK7-Kernel，代码行数:34，代码来源:acl.c


示例16: 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 ((current_fsuid() != inode->i_uid) && !capable(CAP_FOWNER))
		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;
		struct posix_acl *old_acl = acl;
		error = posix_acl_update_mode(inode, &mode, &acl);
		if (!acl)
			posix_acl_release(old_acl);
		if (error)
			goto out_release;
		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:AICP，项目名称:kernel_moto_shamu，代码行数:59，代码来源:xfs_acl.c


示例17: 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18: ovl_posix_acl_xattr_set

static int __maybe_unused
ovl_posix_acl_xattr_set(const struct xattr_handler *handler,
			struct dentry *dentry, struct inode *inode,
			const char *name, const void *value,
			size_t size, int flags)
{
	struct dentry *workdir = ovl_workdir(dentry);
	struct inode *realinode = ovl_inode_real(inode);
	struct posix_acl *acl = NULL;
	int err;

	/* Check that everything is OK before copy-up */
	if (value) {
		acl = posix_acl_from_xattr(&init_user_ns, value, size);
		if (IS_ERR(acl))
			return PTR_ERR(acl);
	}
	err = -EOPNOTSUPP;
	if (!IS_POSIXACL(d_inode(workdir)))
		goto out_acl_release;
	if (!realinode->i_op->set_acl)
		goto out_acl_release;
	if (handler->flags == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode)) {
		err = acl ? -EACCES : 0;
		goto out_acl_release;
	}
	err = -EPERM;
	if (!inode_owner_or_capable(inode))
		goto out_acl_release;

	posix_acl_release(acl);

	/*
	 * Check if sgid bit needs to be cleared (actual setacl operation will
	 * be done with mounter's capabilities and so that won't do it for us).
	 */
	if (unlikely(inode->i_mode & S_ISGID) &&
	    handler->flags == ACL_TYPE_ACCESS &&
	    !in_group_p(inode->i_gid) &&
	    !capable_wrt_inode_uidgid(inode, CAP_FSETID)) {
		struct iattr iattr = { .ia_valid = ATTR_KILL_SGID };

		err = ovl_setattr(dentry, &iattr);
		if (err)
			return err;
	}

	err = ovl_xattr_set(dentry, inode, handler->name, value, size, flags);
	if (!err)
		ovl_copyattr(ovl_inode_real(inode), inode);

	return err;

out_acl_release:
	posix_acl_release(acl);
	return err;
}
开发者ID:avagin，项目名称:linux，代码行数:57，代码来源:super.c


示例19: 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20: switch

struct posix_acl *orangefs_get_acl(struct inode *inode, int type)
{
	struct posix_acl *acl;
	int ret;
	char *key = NULL, *value = NULL;

	switch (type) {
	case ACL_TYPE_ACCESS:
		key = XATTR_NAME_POSIX_ACL_ACCESS;
		break;
	case ACL_TYPE_DEFAULT:
		key = XATTR_NAME_POSIX_ACL_DEFAULT;
		break;
	default:
		gossip_err("orangefs_get_acl: bogus value of type %d\n", type);
		return ERR_PTR(-EINVAL);
	}
	/*
	 * Rather than incurring a network call just to determine the exact
	 * length of the attribute, I just allocate a max length to save on
	 * the network call. Conceivably, we could pass NULL to
	 * orangefs_inode_getxattr() to probe the length of the value, but
	 * I don't do that for now.
	 */
	value = kmalloc(ORANGEFS_MAX_XATTR_VALUELEN, GFP_KERNEL);
	if (!value)
		return ERR_PTR(-ENOMEM);

	gossip_debug(GOSSIP_ACL_DEBUG,
		     "inode %pU, key %s, type %d\n",
		     get_khandle_from_ino(inode),
		     key,
		     type);
	ret = orangefs_inode_getxattr(inode, key, value,
				      ORANGEFS_MAX_XATTR_VALUELEN);
	/* if the key exists, convert it to an in-memory rep */
	if (ret > 0) {
		acl = posix_acl_from_xattr(&init_user_ns, value, ret);
	} else if (ret == -ENODATA || ret == -ENOSYS) {
		acl = NULL;
	} else {
		gossip_err("inode %pU retrieving acl's failed with error %d\n",
			   get_khandle_from_ino(inode),
			   ret);
		acl = ERR_PTR(ret);
	}
	/* kfree(NULL) is safe, so don't worry if value ever got used */
	kfree(value);
	return acl;
}
开发者ID:Lyude，项目名称:linux，代码行数:50，代码来源:acl.c



注：本文中的posix_acl_from_xattr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_release函数代码示例发布时间：2022-05-30
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C++ posix_acl_equiv_mode函数代码示例发布时间：2022-05-30
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