From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/drivers/net/macsec.c | 37 ++++++++++++++++++++++---------------
1 files changed, 22 insertions(+), 15 deletions(-)
diff --git a/kernel/drivers/net/macsec.c b/kernel/drivers/net/macsec.c
index eb02945..bc57832 100644
--- a/kernel/drivers/net/macsec.c
+++ b/kernel/drivers/net/macsec.c
@@ -1308,8 +1308,7 @@
struct crypto_aead *tfm;
int ret;
- /* Pick a sync gcm(aes) cipher to ensure order is preserved. */
- tfm = crypto_alloc_aead("gcm(aes)", 0, CRYPTO_ALG_ASYNC);
+ tfm = crypto_alloc_aead("gcm(aes)", 0, 0);
if (IS_ERR(tfm))
return tfm;
@@ -2584,7 +2583,7 @@
const struct macsec_ops *ops;
struct macsec_context ctx;
struct macsec_dev *macsec;
- int ret;
+ int ret = 0;
if (!attrs[MACSEC_ATTR_IFINDEX])
return -EINVAL;
@@ -2597,28 +2596,36 @@
macsec_genl_offload_policy, NULL))
return -EINVAL;
+ rtnl_lock();
+
dev = get_dev_from_nl(genl_info_net(info), attrs);
- if (IS_ERR(dev))
- return PTR_ERR(dev);
+ if (IS_ERR(dev)) {
+ ret = PTR_ERR(dev);
+ goto out;
+ }
macsec = macsec_priv(dev);
- if (!tb_offload[MACSEC_OFFLOAD_ATTR_TYPE])
- return -EINVAL;
+ if (!tb_offload[MACSEC_OFFLOAD_ATTR_TYPE]) {
+ ret = -EINVAL;
+ goto out;
+ }
offload = nla_get_u8(tb_offload[MACSEC_OFFLOAD_ATTR_TYPE]);
if (macsec->offload == offload)
- return 0;
+ goto out;
/* Check if the offloading mode is supported by the underlying layers */
if (offload != MACSEC_OFFLOAD_OFF &&
- !macsec_check_offload(offload, macsec))
- return -EOPNOTSUPP;
+ !macsec_check_offload(offload, macsec)) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
/* Check if the net device is busy. */
- if (netif_running(dev))
- return -EBUSY;
-
- rtnl_lock();
+ if (netif_running(dev)) {
+ ret = -EBUSY;
+ goto out;
+ }
prev_offload = macsec->offload;
macsec->offload = offload;
@@ -2653,7 +2660,7 @@
rollback:
macsec->offload = prev_offload;
-
+out:
rtnl_unlock();
return ret;
}
--
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