From 1e9887d904280c43c5a92570a07627689c89b48f Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Sun, 5 May 2024 15:20:33 +0200
Subject: net: expose the rtl mac to userland, make the netstack use it

---
 src/kernel/arch/amd64/driver/rtl8139.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'src/kernel/arch/amd64/driver')

diff --git a/src/kernel/arch/amd64/driver/rtl8139.c b/src/kernel/arch/amd64/driver/rtl8139.c
index d1054a4..a005df5 100644
--- a/src/kernel/arch/amd64/driver/rtl8139.c
+++ b/src/kernel/arch/amd64/driver/rtl8139.c
@@ -85,7 +85,6 @@ void rtl8139_init(uint32_t bdf) {
 	for (int i = 0; i < 6; i++) {
 		mac[i] = port_in8(iobase + Mac + i);
 	}
-	kprintf("%02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
 
 	vfs_root_register("/dev/eth/", accept);
 }
@@ -174,6 +173,7 @@ static int try_tx(Proc *proc, const void __user *src, size_t slen) {
 enum {
 	HandleRoot,
 	HandleNet,
+	HandleMac,
 };
 
 static void accept(VfsReq *req) {
@@ -189,12 +189,13 @@ static void accept(VfsReq *req) {
 	case VFSOP_OPEN:
 		if (reqpathcmp(req, "")) ret = HandleRoot;
 		else if (reqpathcmp(req, "net")) ret = HandleNet;
+		else if (reqpathcmp(req, "mac")) ret = HandleMac;
 		else ret = -ENOENT;
 		vfsreq_finish_short(req, ret);
 		break;
 	case VFSOP_READ:
 		if (id == HandleRoot) {
-			const char data[] = "net";
+			const char data[] = "mac\0net";
 			ret = req_readcopy(req, data, sizeof data);
 			vfsreq_finish_short(req, ret);
 		} else if (id == HandleNet) {
@@ -205,6 +206,9 @@ static void accept(VfsReq *req) {
 			} else {
 				vfsreq_finish_short(req, ret);
 			}
+		} else if (id == HandleMac) {
+			ret = req_readcopy(req, mac, sizeof mac);
+			vfsreq_finish_short(req, ret);
 		} else panic_invalid_state();
 		break;
 	case VFSOP_WRITE:
-- 
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