From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124])
	by inbox.dpdk.org (Postfix) with ESMTP id 840A3A0546;
	Sun, 14 Feb 2021 02:20:49 +0100 (CET)
Received: from [217.70.189.124] (localhost [127.0.0.1])
	by mails.dpdk.org (Postfix) with ESMTP id B7DCD1CC55F;
	Sun, 14 Feb 2021 02:20:30 +0100 (CET)
Received: from mail-lj1-f169.google.com (mail-lj1-f169.google.com
 [209.85.208.169])
 by mails.dpdk.org (Postfix) with ESMTP id 2A3291CC4DA
 for <dev@dpdk.org>; Sun, 14 Feb 2021 02:20:27 +0100 (CET)
Received: by mail-lj1-f169.google.com with SMTP id e17so3626185ljl.8
 for <dev@dpdk.org>; Sat, 13 Feb 2021 17:20:27 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;
 h=from:to:cc:subject:date:message-id:in-reply-to:references
 :mime-version:content-transfer-encoding;
 bh=INuMMPX7mPyXPcRHrhvrdRfHk3dCHnteBdjEwxYTTeQ=;
 b=oV4Ch1zASoQjMVXI+OjeYTElocXNFfvHBZlNRCSh2L/yfsD072N0Oz4AVYqO7XwTPr
 cZNNxteezTqXXOeSSYlfqsBy6wMbGuTReo5XiA6BF8PDRqsvAdoxMeho2WCPJkLHfPtD
 u7u079XaVRIliyVBVLBLIgmsoxzjLOktWtx/Ye069FzgQhrkFno3G2aDlPA9+oyYfX36
 qYZfx1sprblXy9nk+pEzx04afQb+gt9PeSTzuUopZpl6urUWYr8nMg8MQpd0EQDwtqZ4
 /IYCGwCX4ZqNV126GrrdJORHKJepG/yXTY+RY6ix1cbZ8D6+fdFmBaN7V70HnPcJfEA6
 PX8w==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20161025;
 h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to
 :references:mime-version:content-transfer-encoding;
 bh=INuMMPX7mPyXPcRHrhvrdRfHk3dCHnteBdjEwxYTTeQ=;
 b=maJa3zm3cmL3NSoRCZCjBNbUYOlCtN+rBxAJAXcyOSIbRmM+Xi8MhoQ4FpsOGibB1g
 CrRRk7zoLTrZw01b+Ix3CsG6fqjiazKRiKOa7ABHBEZ0cegJ63I8h8FLJRndOX5EU/ez
 sgQ32uUrK6VBi1zaXVE8XA23ulj4fK3c63plvg3Sq1XbrudkKesP/ureK0RfS9dmFIx0
 LXuKQvr58+b6TlJ3PS3EE63kEqp4vBCEOm+68cezufo01LsSsDUWo0CXlH+cXWmuF4iE
 4wUnU947HviIXgrR/FKjQq2eueKILRja4k62tYkgGOIyK6HPprtFeLdAq44Qq2O8ixPn
 UODA==
X-Gm-Message-State: AOAM530SL9mF0e6H+omENzO3xddr+MNGwp/QCeDEokh+vT5W3SWm6fZU
 3i8KKVphRo3GBKFzGu3uuZK1s3Qg8gpQRg==
X-Google-Smtp-Source: ABdhPJyIs+zcqwqsVFOnJ8fTzuxO0OhdpupMf6j+2lozjDExyf8A7IJ/dWSnIreLOdxHs7vXKs+qUA==
X-Received: by 2002:a2e:984c:: with SMTP id e12mr5515528ljj.69.1613265626368; 
 Sat, 13 Feb 2021 17:20:26 -0800 (PST)
Received: from localhost.localdomain (broadband-37-110-65-23.ip.moscow.rt.ru.
 [37.110.65.23])
 by smtp.gmail.com with ESMTPSA id h11sm2237648lfd.243.2021.02.13.17.20.25
 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
 Sat, 13 Feb 2021 17:20:26 -0800 (PST)
From: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
To: dev@dpdk.org
Cc: Tyler Retzlaff <roretzla@microsoft.com>,
 Mike Wells <mike.wells@telchemy.com>,
 Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>,
 Ferruh Yigit <ferruh.yigit@intel.com>
Date: Sun, 14 Feb 2021 04:20:10 +0300
Message-Id: <20210214012013.23165-4-dmitry.kozliuk@gmail.com>
X-Mailer: git-send-email 2.29.2
In-Reply-To: <20210214012013.23165-1-dmitry.kozliuk@gmail.com>
References: <20210214012013.23165-1-dmitry.kozliuk@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Subject: [dpdk-dev] [PATCH 3/6] net/pcap: move OS-dependent code to separate
 files
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>

PCAP PMD queries interface information differently for Linux and
FreeBSD, OS-specific code is guarded by #ifdef. In preparation to add
Windows-specific part and libpcap wrapper, extract OS-independent
interface and move implementations to separate files. Rename
rte_eth_pcap.c to pcap_ethdev.c for consistency with the rest of DPDK.

Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
---
 drivers/net/pcap/meson.build                  |  5 +-
 .../pcap/{rte_eth_pcap.c => pcap_ethdev.c}    | 88 ++-----------------
 drivers/net/pcap/pcap_osdep.h                 | 17 ++++
 drivers/net/pcap/pcap_osdep_freebsd.c         | 59 +++++++++++++
 drivers/net/pcap/pcap_osdep_linux.c           | 42 +++++++++
 5 files changed, 130 insertions(+), 81 deletions(-)
 rename drivers/net/pcap/{rte_eth_pcap.c => pcap_ethdev.c} (95%)
 create mode 100644 drivers/net/pcap/pcap_osdep.h
 create mode 100644 drivers/net/pcap/pcap_osdep_freebsd.c
 create mode 100644 drivers/net/pcap/pcap_osdep_linux.c

diff --git a/drivers/net/pcap/meson.build b/drivers/net/pcap/meson.build
index b65d91e70..26b606699 100644
--- a/drivers/net/pcap/meson.build
+++ b/drivers/net/pcap/meson.build
@@ -11,5 +11,8 @@ if not dpdk_conf.has('RTE_PORT_PCAP')
 	build = false
 	reason = 'missing dependency, "libpcap"'
 endif
-sources = files('rte_eth_pcap.c')
+sources = files(
+	'pcap_ethdev.c',
+	'pcap_osdep_@0@.c'.format(exec_env),
+)
 ext_deps += pcap_dep
diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/pcap_ethdev.c
similarity index 95%
rename from drivers/net/pcap/rte_eth_pcap.c
rename to drivers/net/pcap/pcap_ethdev.c
index 176928da3..a102897e9 100644
--- a/drivers/net/pcap/rte_eth_pcap.c
+++ b/drivers/net/pcap/pcap_ethdev.c
@@ -6,16 +6,6 @@
 
 #include <time.h>
 
-#include <net/if.h>
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#include <unistd.h>
-
-#if defined(RTE_EXEC_ENV_FREEBSD)
-#include <sys/sysctl.h>
-#include <net/if_dl.h>
-#endif
-
 #include <pcap.h>
 
 #include <rte_cycles.h>
@@ -25,7 +15,8 @@
 #include <rte_malloc.h>
 #include <rte_mbuf.h>
 #include <rte_bus_vdev.h>
-#include <rte_string_fns.h>
+
+#include "pcap_osdep.h"
 
 #define RTE_ETH_PCAP_SNAPSHOT_LEN 65535
 #define RTE_ETH_PCAP_SNAPLEN RTE_ETHER_MAX_JUMBO_FRAME_LEN
@@ -1191,84 +1182,20 @@ static int
 eth_pcap_update_mac(const char *if_name, struct rte_eth_dev *eth_dev,
 		const unsigned int numa_node)
 {
-#if defined(RTE_EXEC_ENV_LINUX)
 	void *mac_addrs;
-	struct ifreq ifr;
-	int if_fd = socket(AF_INET, SOCK_DGRAM, 0);
-
-	if (if_fd == -1)
-		return -1;
+	struct rte_ether_addr mac;
 
-	rte_strscpy(ifr.ifr_name, if_name, sizeof(ifr.ifr_name));
-	if (ioctl(if_fd, SIOCGIFHWADDR, &ifr)) {
-		close(if_fd);
+	if (osdep_iface_mac_get(if_name, &mac) < 0)
 		return -1;
-	}
 
 	mac_addrs = rte_zmalloc_socket(NULL, RTE_ETHER_ADDR_LEN, 0, numa_node);
-	if (!mac_addrs) {
-		close(if_fd);
+	if (mac_addrs == NULL)
 		return -1;
-	}
 
 	PMD_LOG(INFO, "Setting phy MAC for %s", if_name);
+	rte_memcpy(mac_addrs, mac.addr_bytes, RTE_ETHER_ADDR_LEN);
 	eth_dev->data->mac_addrs = mac_addrs;
-	rte_memcpy(eth_dev->data->mac_addrs[0].addr_bytes,
-			ifr.ifr_hwaddr.sa_data, RTE_ETHER_ADDR_LEN);
-
-	close(if_fd);
-
-	return 0;
-
-#elif defined(RTE_EXEC_ENV_FREEBSD)
-	void *mac_addrs;
-	struct if_msghdr *ifm;
-	struct sockaddr_dl *sdl;
-	int mib[6];
-	size_t len = 0;
-	char *buf;
-
-	mib[0] = CTL_NET;
-	mib[1] = AF_ROUTE;
-	mib[2] = 0;
-	mib[3] = AF_LINK;
-	mib[4] = NET_RT_IFLIST;
-	mib[5] = if_nametoindex(if_name);
-
-	if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0)
-		return -1;
-
-	if (len == 0)
-		return -1;
-
-	buf = rte_malloc(NULL, len, 0);
-	if (!buf)
-		return -1;
-
-	if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {
-		rte_free(buf);
-		return -1;
-	}
-	ifm = (struct if_msghdr *)buf;
-	sdl = (struct sockaddr_dl *)(ifm + 1);
-
-	mac_addrs = rte_zmalloc_socket(NULL, RTE_ETHER_ADDR_LEN, 0, numa_node);
-	if (!mac_addrs) {
-		rte_free(buf);
-		return -1;
-	}
-
-	PMD_LOG(INFO, "Setting phy MAC for %s", if_name);
-	eth_dev->data->mac_addrs = mac_addrs;
-	rte_memcpy(eth_dev->data->mac_addrs[0].addr_bytes,
-			LLADDR(sdl), RTE_ETHER_ADDR_LEN);
-
-	rte_free(buf);
-
 	return 0;
-#else
-	return -1;
-#endif
 }
 
 static int
@@ -1330,7 +1257,8 @@ eth_from_pcaps(struct rte_vdev_device *vdev,
 	internals->single_iface = single_iface;
 
 	if (single_iface) {
-		internals->if_index = if_nametoindex(rx_queues->queue[0].name);
+		internals->if_index =
+			osdep_iface_index_get(rx_queues->queue[0].name);
 
 		/* phy_mac arg is applied only only if "iface" devarg is provided */
 		if (rx_queues->phy_mac) {
diff --git a/drivers/net/pcap/pcap_osdep.h b/drivers/net/pcap/pcap_osdep.h
new file mode 100644
index 000000000..46810d86f
--- /dev/null
+++ b/drivers/net/pcap/pcap_osdep.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2021 Dmitry Kozlyuk
+ */
+
+#ifndef _RTE_PCAP_OSDEP_
+#define _RTE_PCAP_OSDEP_
+
+#include <rte_ether.h>
+
+/*
+ * Interface manipulation is always OS-specific.
+ */
+
+int osdep_iface_index_get(const char *name);
+int osdep_iface_mac_get(const char *name, struct rte_ether_addr *mac);
+
+#endif
diff --git a/drivers/net/pcap/pcap_osdep_freebsd.c b/drivers/net/pcap/pcap_osdep_freebsd.c
new file mode 100644
index 000000000..20556b3e9
--- /dev/null
+++ b/drivers/net/pcap/pcap_osdep_freebsd.c
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2016 Intel Corporation.
+ * Copyright(c) 2014 6WIND S.A.
+ * All rights reserved.
+ */
+
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <sys/sysctl.h>
+
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+
+#include "pcap_osdep.h"
+
+int
+osdep_iface_index_get(const char *name)
+{
+	return if_nametoindex(name);
+}
+
+int
+osdep_iface_mac_get(const char *if_name, struct rte_ether_addr *mac)
+{
+	struct if_msghdr *ifm;
+	struct sockaddr_dl *sdl;
+	int mib[6];
+	size_t len = 0;
+	char *buf;
+
+	mib[0] = CTL_NET;
+	mib[1] = AF_ROUTE;
+	mib[2] = 0;
+	mib[3] = AF_LINK;
+	mib[4] = NET_RT_IFLIST;
+	mib[5] = if_nametoindex(if_name);
+
+	if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0)
+		return -1;
+
+	if (len == 0)
+		return -1;
+
+	buf = rte_malloc(NULL, len, 0);
+	if (!buf)
+		return -1;
+
+	if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {
+		rte_free(buf);
+		return -1;
+	}
+	ifm = (struct if_msghdr *)buf;
+	sdl = (struct sockaddr_dl *)(ifm + 1);
+
+	rte_memcpy(mac->addr_bytes, LLADDR(sdl), RTE_ETHER_ADDR_LEN);
+
+	rte_free(buf);
+	return 0;
+}
diff --git a/drivers/net/pcap/pcap_osdep_linux.c b/drivers/net/pcap/pcap_osdep_linux.c
new file mode 100644
index 000000000..97033f57c
--- /dev/null
+++ b/drivers/net/pcap/pcap_osdep_linux.c
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2016 Intel Corporation.
+ * Copyright(c) 2014 6WIND S.A.
+ * All rights reserved.
+ */
+
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include <rte_memcpy.h>
+#include <rte_string_fns.h>
+
+#include "pcap_osdep.h"
+
+int
+osdep_iface_index_get(const char *name)
+{
+	return if_nametoindex(name);
+}
+
+int
+osdep_iface_mac_get(const char *if_name, struct rte_ether_addr *mac)
+{
+	struct ifreq ifr;
+	int if_fd = socket(AF_INET, SOCK_DGRAM, 0);
+
+	if (if_fd == -1)
+		return -1;
+
+	rte_strscpy(ifr.ifr_name, if_name, sizeof(ifr.ifr_name));
+	if (ioctl(if_fd, SIOCGIFHWADDR, &ifr)) {
+		close(if_fd);
+		return -1;
+	}
+
+	rte_memcpy(mac->addr_bytes, ifr.ifr_hwaddr.sa_data, RTE_ETHER_ADDR_LEN);
+
+	close(if_fd);
+	return 0;
+}
-- 
2.29.2