Exemplos de gfs2_acl_get em C++ (Cpp)

Exemplo n.º 1

static int gfs2_xattr_system_get(struct dentry *dentry, const char *name,
				 void *buffer, size_t size, int xtype)
{
	struct inode *inode = dentry->d_inode;
	struct gfs2_sbd *sdp = GFS2_SB(inode);
	struct posix_acl *acl;
	int type;
	int error;

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

	type = gfs2_acl_type(name);
	if (type < 0)
		return type;

	acl = gfs2_acl_get(GFS2_I(inode), type);
	if (IS_ERR(acl))
		return PTR_ERR(acl);
	if (acl == NULL)
		return -ENODATA;

	error = posix_acl_to_xattr(acl, buffer, size);
	posix_acl_release(acl);

	return error;
}

Exemplo n.º 2

int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
{
	struct posix_acl *acl;
	char *data;
	unsigned int len;
	int error;

	acl = gfs2_acl_get(ip, ACL_TYPE_ACCESS);
	if (IS_ERR(acl))
		return PTR_ERR(acl);
	if (!acl)
		return gfs2_setattr_simple(ip, attr);

	error = posix_acl_chmod(&acl, GFP_NOFS, attr->ia_mode);
	if (error)
		return error;

	len = posix_acl_to_xattr(acl, NULL, 0);
	data = kmalloc(len, GFP_NOFS);
	error = -ENOMEM;
	if (data == NULL)
		goto out;
	posix_acl_to_xattr(acl, data, len);
	error = gfs2_xattr_acl_chmod(ip, attr, data);
	kfree(data);
	set_cached_acl(&ip->i_inode, ACL_TYPE_ACCESS, acl);

out:
	posix_acl_release(acl);
	return error;
}

Exemplo n.º 3

int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode)
{
	struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
	struct posix_acl *acl, *clone;
	mode_t mode = inode->i_mode;
	int error = 0;

	if (!sdp->sd_args.ar_posix_acl)
		return 0;
	if (S_ISLNK(inode->i_mode))
		return 0;

	acl = gfs2_acl_get(dip, ACL_TYPE_DEFAULT);
	if (IS_ERR(acl))
		return PTR_ERR(acl);
	if (!acl) {
		mode &= ~current_umask();
		if (mode != inode->i_mode)
			error = gfs2_set_mode(inode, mode);
		return error;
	}

	if (S_ISDIR(inode->i_mode)) {
		error = gfs2_acl_set(inode, ACL_TYPE_DEFAULT, acl);
		if (error)
			goto out;
	}

	clone = posix_acl_clone(acl, GFP_NOFS);
	error = -ENOMEM;
	if (!clone)
		goto out;
	posix_acl_release(acl);
	acl = clone;

	error = posix_acl_create_masq(acl, &mode);
	if (error < 0)
		goto out;
	if (error == 0)
		goto munge;

	error = gfs2_acl_set(inode, ACL_TYPE_ACCESS, acl);
	if (error)
		goto out;
munge:
	error = gfs2_set_mode(inode, mode);
out:
	posix_acl_release(acl);
	return error;
}

Exemplo n.º 4

Arquivo: acl.c Projeto: 12rafael/jellytimekernel

int gfs2_check_acl(struct inode *inode, int mask)
{
	struct posix_acl *acl;
	int error;

	acl = gfs2_acl_get(GFS2_I(inode), ACL_TYPE_ACCESS);
	if (IS_ERR(acl))
		return PTR_ERR(acl);

	if (acl) {
		error = posix_acl_permission(inode, acl, mask);
		posix_acl_release(acl);
		return error;
	}

	return -EAGAIN;
}

Exemplo n.º 5

int gfs2_check_acl(struct inode *inode, int mask, unsigned int flags)
{
	struct posix_acl *acl;
	int error;

	if (flags & IPERM_FLAG_RCU) {
		if (!negative_cached_acl(inode, ACL_TYPE_ACCESS))
			return -ECHILD;
		return -EAGAIN;
	}

	acl = gfs2_acl_get(GFS2_I(inode), ACL_TYPE_ACCESS);
	if (IS_ERR(acl))
		return PTR_ERR(acl);

	if (acl) {
		error = posix_acl_permission(inode, acl, mask);
		posix_acl_release(acl);
		return error;
	}

	return -EAGAIN;
}