C++ (Cpp) __tipc_nl_compat_dumpit示例

示例#1

文件： netlink_compat.c 项目： ParrotSec/linux-psec

static int tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd,
				 struct tipc_nl_compat_msg *msg)
{
	int err;
	struct sk_buff *arg;

	if (msg->req_type && !TLV_CHECK_TYPE(msg->req, msg->req_type))
		return -EINVAL;

	msg->rep = tipc_tlv_alloc(msg->rep_size);
	if (!msg->rep)
		return -ENOMEM;

	if (msg->rep_type)
		tipc_tlv_init(msg->rep, msg->rep_type);

	if (cmd->header)
		(*cmd->header)(msg);

	arg = nlmsg_new(0, GFP_KERNEL);
	if (!arg) {
		kfree_skb(msg->rep);
		return -ENOMEM;
	}

	err = __tipc_nl_compat_dumpit(cmd, msg, arg);
	if (err)
		kfree_skb(msg->rep);

	kfree_skb(arg);

	return err;
}

示例#2

文件： netlink_compat.c 项目： RafaelFazzolino/linux

static int tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, u32 sock)
{
	int err;
	void *hdr;
	struct nlattr *nest;
	struct sk_buff *args;
	struct tipc_nl_compat_cmd_dump dump;

	args = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
	if (!args)
		return -ENOMEM;

	hdr = genlmsg_put(args, 0, 0, &tipc_genl_family, NLM_F_MULTI,
			  TIPC_NL_PUBL_GET);
	if (!hdr) {
		kfree_skb(args);
		return -EMSGSIZE;
	}

	nest = nla_nest_start(args, TIPC_NLA_SOCK);
	if (!nest) {
		kfree_skb(args);
		return -EMSGSIZE;
	}

	if (nla_put_u32(args, TIPC_NLA_SOCK_REF, sock)) {
		kfree_skb(args);
		return -EMSGSIZE;
	}

	nla_nest_end(args, nest);
	genlmsg_end(args, hdr);

	dump.dumpit = tipc_nl_publ_dump;
	dump.format = __tipc_nl_compat_publ_dump;

	err = __tipc_nl_compat_dumpit(&dump, msg, args);

	kfree_skb(args);

	return err;
}