From e05938ac4acd42d8acac123a880cae9582a93611 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Wed, 17 Aug 2022 16:40:54 +0200
Subject: amd64/rtl8139: tx

---
 src/user/app/ethdump/ethdump.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'src/user/app/ethdump')

diff --git a/src/user/app/ethdump/ethdump.c b/src/user/app/ethdump/ethdump.c
index 50dd1f9..adcb95e 100644
--- a/src/user/app/ethdump/ethdump.c
+++ b/src/user/app/ethdump/ethdump.c
@@ -123,6 +123,27 @@ static void parse_ethernet(const uint8_t *buf, size_t len) {
 	}
 }
 
+static void dummy_packet(handle_t h) {
+	const uint8_t packet[] = {
+		/* raw dump of a ICMP broadcast ping */
+		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x52, 0x54,
+		0x00, 0x12, 0x34, 0x56, 0x08, 0x00, 0x45, 0x00,
+		0x00, 0x54, 0x06, 0xa6, 0x40, 0x00, 0x40, 0x01,
+		0x73, 0x5a, 0xc0, 0xa8, 0x00, 0x01, 0xff, 0xff,
+		0xff, 0xff, 0x08, 0x00, 0x82, 0x62, 0xef, 0x07,
+		0x00, 0xcb, 0x3b, 0x83, 0x4a, 0x47, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00,
+		/* 0x20, 0xcf, 0x98, 0x7f, */ /* crc */
+	};
+	_syscall_write(h, packet, sizeof packet, 0, 0);
+}
+
 int main(void) {
 	const char *path = "/kdev/eth";
 	handle_t h = _syscall_open(path, strlen(path), 0);
@@ -131,6 +152,10 @@ int main(void) {
 		return 1;
 	}
 
+	for (int i = 0; i < 20; i++)
+		dummy_packet(h);
+	return 0;
+
 	const size_t buflen = 4096;
 	char *buf = malloc(buflen);
 	for (;;) {
-- 
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