From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id 57FD1A0679 for ; Wed, 3 Apr 2019 16:45:24 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 67DE41B458; Wed, 3 Apr 2019 16:45:17 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 7265D1B44F; Wed, 3 Apr 2019 16:45:15 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Apr 2019 07:45:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,304,1549958400"; d="scan'208";a="312832701" Received: from silpixa00399126.ir.intel.com (HELO silpixa00399126.ger.corp.intel.com) ([10.237.222.236]) by orsmga005.jf.intel.com with ESMTP; 03 Apr 2019 07:45:13 -0700 From: Bruce Richardson To: dev@dpdk.org Cc: Bruce Richardson , Declan Doherty , stable@dpdk.org Date: Wed, 3 Apr 2019 15:45:01 +0100 Message-Id: <20190403144505.46234-2-bruce.richardson@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190403144505.46234-1-bruce.richardson@intel.com> References: <20190403144505.46234-1-bruce.richardson@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH 1/5] net/bonding: fix buffer length when printing strings X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Content-Type: text/plain; charset="UTF-8" Message-ID: <20190403144501.1mg51vcbZl-RuJ030P3PztJazd5v-ujvTeFQCjGAfRw@z> Using the size of the source string is incorrect when printing using snprintf. Instead pass in the buffer size to be used appropriately. Fixes: 457ecf2953fc ("bond: add debug info for mode 6") CC: Declan Doherty CC: stable@dpdk.org Signed-off-by: Bruce Richardson --- drivers/net/bonding/rte_eth_bond_pmd.c | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-) diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c index 58b6e4344..154257ffe 100644 --- a/drivers/net/bonding/rte_eth_bond_pmd.c +++ b/drivers/net/bonding/rte_eth_bond_pmd.c @@ -489,35 +489,31 @@ uint32_t burstnumberTX; #ifdef RTE_LIBRTE_BOND_DEBUG_ALB static void -arp_op_name(uint16_t arp_op, char *buf) +arp_op_name(uint16_t arp_op, char *buf, size_t buf_len) { switch (arp_op) { case ARP_OP_REQUEST: - snprintf(buf, sizeof("ARP Request"), "%s", "ARP Request"); + snprintf(buf, buf_len, "%s", "ARP Request"); return; case ARP_OP_REPLY: - snprintf(buf, sizeof("ARP Reply"), "%s", "ARP Reply"); + snprintf(buf, buf_len, "%s", "ARP Reply"); return; case ARP_OP_REVREQUEST: - snprintf(buf, sizeof("Reverse ARP Request"), "%s", - "Reverse ARP Request"); + snprintf(buf, buf_len, "%s", "Reverse ARP Request"); return; case ARP_OP_REVREPLY: - snprintf(buf, sizeof("Reverse ARP Reply"), "%s", - "Reverse ARP Reply"); + snprintf(buf, buf_len, "%s", "Reverse ARP Reply"); return; case ARP_OP_INVREQUEST: - snprintf(buf, sizeof("Peer Identify Request"), "%s", - "Peer Identify Request"); + snprintf(buf, buf_len, "%s", "Peer Identify Request"); return; case ARP_OP_INVREPLY: - snprintf(buf, sizeof("Peer Identify Reply"), "%s", - "Peer Identify Reply"); + snprintf(buf, buf_len, "%s", "Peer Identify Reply"); return; default: break; } - snprintf(buf, sizeof("Unknown"), "%s", "Unknown"); + snprintf(buf, buf_len, "%s", "Unknown"); return; } #endif @@ -621,7 +617,8 @@ mode6_debug(const char __attribute__((unused)) *info, struct ether_hdr *eth_h, arp_h = (struct arp_hdr *)((char *)(eth_h + 1) + offset); ipv4_addr_to_dot(arp_h->arp_data.arp_sip, src_ip, MaxIPv4String); ipv4_addr_to_dot(arp_h->arp_data.arp_tip, dst_ip, MaxIPv4String); - arp_op_name(rte_be_to_cpu_16(arp_h->arp_op), ArpOp); + arp_op_name(rte_be_to_cpu_16(arp_h->arp_op), + ArpOp, sizeof(ArpOp)); MODE6_DEBUG(buf, src_ip, dst_ip, eth_h, ArpOp, port, *burstnumber); } #endif -- 2.20.1