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C++ posix_acl_valid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_valid函数的典型用法代码示例。如果您正苦于以下问题：C++ posix_acl_valid函数的具体用法？C++ posix_acl_valid怎么用？C++ posix_acl_valid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_valid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: nfs4_acl_posix_to_nfsv4

struct nfs4_acl *
nfs4_acl_posix_to_nfsv4(struct posix_acl *pacl, struct posix_acl *dpacl,
			unsigned int flags)
{
	struct nfs4_acl *acl;
	int size = 0;

	if (pacl) {
		if (posix_acl_valid(pacl) < 0)
			return ERR_PTR(-EINVAL);
		size += 2*pacl->a_count;
	}
	if (dpacl) {
		if (posix_acl_valid(dpacl) < 0)
			return ERR_PTR(-EINVAL);
		size += 2*dpacl->a_count;
	}

	/* Allocate for worst case: one (deny, allow) pair each: */
	acl = nfs4_acl_new(size);
	if (acl == NULL)
		return ERR_PTR(-ENOMEM);

	if (pacl)
		_posix_to_nfsv4_one(pacl, acl, flags & ~NFS4_ACL_TYPE_DEFAULT);

	if (dpacl)
		_posix_to_nfsv4_one(dpacl, acl, flags | NFS4_ACL_TYPE_DEFAULT);

	return acl;
}
开发者ID:AICP，项目名称:kernel_moto_shamu，代码行数:31，代码来源:nfs4acl.c


示例2: 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3: 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4: 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5: 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: 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10: 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11: 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12: 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13: 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14: 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15: 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16: ext3_xattr_set_acl

static int
ext3_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;
	handle_t *handle;
	struct posix_acl *acl;
	int error, retries = 0;

	if (strcmp(name, "") != 0)
		return -EINVAL;
	if (!test_opt(inode->i_sb, POSIX_ACL))
		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);
		else if (acl) {
			error = posix_acl_valid(acl);
			if (error)
				goto release_and_out;
		}
	} else
		acl = NULL;

retry:
	handle = ext3_journal_start(inode, EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
	if (IS_ERR(handle))
		return PTR_ERR(handle);
	error = ext3_set_acl(handle, inode, type, acl);
	ext3_journal_stop(handle);
	if (error == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries))
		goto retry;

release_and_out:
	posix_acl_release(acl);
	return error;
}
开发者ID:nos1609，项目名称:Chrono_Kernel-1，代码行数:49，代码来源:acl.c


示例17: posix_acl_set

static int
posix_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;
	int error, error2;
	struct reiserfs_transaction_handle th;
	size_t jcreate_blocks;
	if (!reiserfs_posixacl(inode->i_sb))
		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) {
			error = posix_acl_valid(acl);
			if (error)
				goto release_and_out;
		}
	} else
		acl = NULL;

	/* Pessimism: We can't assume that anything from the xattr root up
	 * has been created. */

	jcreate_blocks = reiserfs_xattr_jcreate_nblocks(inode) +
			 reiserfs_xattr_nblocks(inode, size) * 2;

	reiserfs_write_lock(inode->i_sb);
	error = journal_begin(&th, inode->i_sb, jcreate_blocks);
	if (error == 0) {
		error = reiserfs_set_acl(&th, inode, type, acl);
		error2 = journal_end(&th, inode->i_sb, jcreate_blocks);
		if (error2)
			error = error2;
	}
	reiserfs_write_unlock(inode->i_sb);

      release_and_out:
	posix_acl_release(acl);
	return error;
}
开发者ID:AD5GB，项目名称:kernel_n5_3.10-experimental，代码行数:46，代码来源:xattr_acl.c


示例18: __zpl_xattr_acl_set_default

static int
__zpl_xattr_acl_set_default(struct inode *ip, const char *name,
    const void *value, size_t size, int flags)
{
	struct posix_acl *acl;
	int type = ACL_TYPE_DEFAULT;
	int error = 0;
	/* xattr_resolve_name will do this for us if this is defined */
#ifndef HAVE_XATTR_HANDLER_NAME
	if (strcmp(name, "") != 0)
		return (-EINVAL);
#endif
	if (ITOZSB(ip)->z_acl_type != ZFS_ACLTYPE_POSIXACL)
		return (-EOPNOTSUPP);

	if (!zpl_inode_owner_or_capable(ip))
		return (-EPERM);

	if (value) {
		acl = zpl_acl_from_xattr(value, size);
		if (IS_ERR(acl))
			return (PTR_ERR(acl));
		else if (acl) {
			error = posix_acl_valid(acl);
			if (error) {
				zpl_posix_acl_release(acl);
				return (error);
			}
		}
	} else {
		acl = NULL;
	}

	error = zpl_set_acl(ip, type, acl);
	zpl_posix_acl_release(acl);

	return (error);
}
开发者ID:vpsfreecz，项目名称:zfs，代码行数:38，代码来源:zpl_xattr.c


示例19: xfs_xattr_system_set

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

	type = xfs_decode_acl(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 (!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 > XFS_ACL_MAX_ENTRIES)
		goto out_release;

	if (type == ACL_TYPE_ACCESS) {
		mode_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:mikuhatsune001，项目名称:linux2.6.32，代码行数:65，代码来源:xfs_acl.c


示例20: 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



注：本文中的posix_acl_valid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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