C++ (Cpp) nft_match_set_mtchk_param示例

示例#1

文件： nft_compat.c 项目： avagin/linux

static int
__nft_match_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
		 const struct nlattr * const tb[],
		 void *info)
{
	struct xt_match *match = expr->ops->data;
	struct xt_mtchk_param par;
	size_t size = XT_ALIGN(nla_len(tb[NFTA_MATCH_INFO]));
	u16 proto = 0;
	bool inv = false;
	union nft_entry e = {};
	int ret;

	match_compat_from_user(match, nla_data(tb[NFTA_MATCH_INFO]), info);

	if (ctx->nla[NFTA_RULE_COMPAT]) {
		ret = nft_parse_compat(ctx->nla[NFTA_RULE_COMPAT], &proto, &inv);
		if (ret < 0)
			return ret;
	}

	nft_match_set_mtchk_param(&par, ctx, match, info, &e, proto, inv);

	return xt_check_match(&par, size, proto, inv);
}

示例#2

文件： nft_compat.c 项目： AndreyNovykov/linux-kernel

static int
nft_match_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
		const struct nlattr * const tb[])
{
	void *info = nft_expr_priv(expr);
	struct xt_match *match = expr->ops->data;
	struct xt_mtchk_param par;
	size_t size = XT_ALIGN(nla_len(tb[NFTA_MATCH_INFO]));
	u16 proto = 0;
	bool inv = false;
	union nft_entry e = {};
	int ret;

	ret = nft_compat_chain_validate_dependency(match->table, ctx->chain);
	if (ret < 0)
		goto err;

	match_compat_from_user(match, nla_data(tb[NFTA_MATCH_INFO]), info);

	if (ctx->nla[NFTA_RULE_COMPAT]) {
		ret = nft_parse_compat(ctx->nla[NFTA_RULE_COMPAT], &proto, &inv);
		if (ret < 0)
			goto err;
	}

	nft_match_set_mtchk_param(&par, ctx, match, info, &e, proto, inv);

	ret = xt_check_match(&par, size, proto, inv);
	if (ret < 0)
		goto err;

	return 0;
err:
	module_put(match->me);
	return ret;
}