From patchwork Thu Jun 1 20:27:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anubhav Shelat X-Patchwork-Id: 688127 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64B56C7EE2F for ; Thu, 1 Jun 2023 20:28:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232529AbjFAU24 (ORCPT ); Thu, 1 Jun 2023 16:28:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55176 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232523AbjFAU2w (ORCPT ); Thu, 1 Jun 2023 16:28:52 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 217D8199 for ; Thu, 1 Jun 2023 13:28:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1685651282; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=bGwHwqxRVENN0/67TDjlWY1dABIsmuKaifQxjaGJZq0=; b=eMittaa4ZRmWixzPOhBwzBUZx3mXST6uA/WDX6WFGFZOxcRbtyrVCs7OLGLOnxeYXFgovo 8zaIl0d1auqeQsSzX/s3EERD6ImF3YAZ4mp+x0fSt0WC3zZ+LasU+1MkDiZo98uLQ9JHLU XjAke13Q8N2Y34UjJJP+6V8rmLQV8fk= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-205-7sedtibXPbeXZ_kiptGp2w-1; Thu, 01 Jun 2023 16:28:00 -0400 X-MC-Unique: 7sedtibXPbeXZ_kiptGp2w-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 9A5DD101A53A for ; Thu, 1 Jun 2023 20:28:00 +0000 (UTC) Received: from ashelat.remote.csb (unknown [10.22.34.121]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7B547C154D9; Thu, 1 Jun 2023 20:28:00 +0000 (UTC) From: Anubhav Shelat To: linux-rt-users@vger.kernel.org Cc: Anubhav Shelat Subject: [PATCH v2 09/10] Added code to check if the proc/net/if_inet6 file exists while loading IPv6 addresses in the IPv6Addresses class Date: Thu, 1 Jun 2023 16:27:35 -0400 Message-Id: <20230601202734.813515-10-ashelat@redhat.com> In-Reply-To: <20230601202734.813515-1-ashelat@redhat.com> References: <20230601202734.813515-1-ashelat@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org Added code to check if the proc/net/if_inet6 file exists while loading IPv6 addresses in the IPv6Addresses class. If it doesn't, then the system has IPv6 disabled, and that chunk of code is passed. Signed-off-by: Anubhav Shelat Signed-off-by: John Kacur --- rteval/sysinfo/newnet.py | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) diff --git a/rteval/sysinfo/newnet.py b/rteval/sysinfo/newnet.py index 63417d9e59f1..2911400ceb6c 100644 --- a/rteval/sysinfo/newnet.py +++ b/rteval/sysinfo/newnet.py @@ -72,19 +72,23 @@ class IPv6Addresses(): and a list of ipv6addresses ''' MYP = '/proc/net/if_inet6' - with open(MYP, 'r') as f: - mystr = f.readline().strip() - while len(mystr) > 0: - ipv6addr , _, _, _, _, intf = mystr.split() - ipv6addr = compress_iv6(ipv6addr) - if intf == 'lo': - mystr = f.readline().strip() - continue - if intf not in self.data: - self.data[intf] = [ipv6addr] - else: - self.data[intf].append(ipv6addr) + try: + with open(MYP, 'r') as f: mystr = f.readline().strip() + while len(mystr) > 0: + ipv6addr , _, _, _, _, intf = mystr.split() + ipv6addr = compress_iv6(ipv6addr) + if intf == 'lo': + mystr = f.readline().strip() + continue + if intf not in self.data: + self.data[intf] = [ipv6addr] + else: + self.data[intf].append(ipv6addr) + mystr = f.readline().strip() + # if IPv6 is disabled, the if_net6 files does not exist, so we can pass + except FileNotFoundError: + pass class IPv4Addresses(): ''' Obtains a list of IPv4 addresses from the proc file system '''