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authorRamon Fried <rfried.dev@gmail.com>2019-07-18 21:43:30 +0300
committerJoe Hershberger <joe.hershberger@ni.com>2019-09-04 11:37:19 -0500
commit3eaac6307dff1e281f89fece521dc8a14078bf61 (patch)
tree9bc58bd8fde06dc4fc92a2ecfc7270a55d95b906 /net/eth_legacy.c
parent1bad991205780cd9f7ebdbdeb0d3a7d118f9f247 (diff)
net: introduce packet capture support
Add support for capturing ethernet packets and storing them in memory in PCAP(2.4) format, later to be analyzed by any PCAP viewer software (IE. Wireshark) This feature greatly assist debugging network issues such as detecting dropped packets, packet corruption etc. Signed-off-by: Ramon Fried <rfried.dev@gmail.com> Reviewed-by: Alex Marginean <alexm.osslist@gmail.com> Tested-by: Alex Marginean <alexm.osslist@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'net/eth_legacy.c')
-rw-r--r--net/eth_legacy.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/net/eth_legacy.c b/net/eth_legacy.c
index 850f362d873..41f52635266 100644
--- a/net/eth_legacy.c
+++ b/net/eth_legacy.c
@@ -11,6 +11,7 @@
#include <net.h>
#include <phy.h>
#include <linux/errno.h>
+#include <net/pcap.h>
#include "eth_internal.h"
DECLARE_GLOBAL_DATA_PTR;
@@ -352,10 +353,17 @@ int eth_is_active(struct eth_device *dev)
int eth_send(void *packet, int length)
{
+ int ret;
+
if (!eth_current)
return -ENODEV;
- return eth_current->send(eth_current, packet, length);
+ ret = eth_current->send(eth_current, packet, length);
+#if defined(CONFIG_CMD_PCAP)
+ if (ret >= 0)
+ pcap_post(packet, lengeth, true);
+#endif
+ return ret;
}
int eth_rx(void)