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| author | Etienne Champetier <champetier.etienne@gmail.com> | 2019-09-04 10:15:51 -0700 |
|---|---|---|
| committer | Petr Štetiar <ynezz@true.cz> | 2019-09-23 07:42:46 +0200 |
| commit | d897b32139a3c2f80b7a7f688dc274327a313aad (patch) | |
| tree | 008a39a7bda2864e9aa560218fdf2e1e0fbc9426 | |
| parent | b610572a9baf18a913231e5d90348af873986ddc (diff) | |
| download | upstream-d897b32139a3c2f80b7a7f688dc274327a313aad.tar.gz upstream-d897b32139a3c2f80b7a7f688dc274327a313aad.tar.bz2 upstream-d897b32139a3c2f80b7a7f688dc274327a313aad.zip | |
kernel: add disable_eap_hack sysfs attribute
We are not sure if 640-bridge-only-accept-EAP-locally.patch is still needed
as a first step, add disable_eap_hack sysfs config to allow to disable it
Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>
(cherry picked from commit 7d542dc8047d276517b296132926e722004065e0)
| -rw-r--r-- | target/linux/generic/hack-4.14/640-bridge-only-accept-EAP-locally.patch | 59 |
1 files changed, 55 insertions, 4 deletions
diff --git a/target/linux/generic/hack-4.14/640-bridge-only-accept-EAP-locally.patch b/target/linux/generic/hack-4.14/640-bridge-only-accept-EAP-locally.patch index 0dbb8ee3c0..fbe9ab0876 100644 --- a/target/linux/generic/hack-4.14/640-bridge-only-accept-EAP-locally.patch +++ b/target/linux/generic/hack-4.14/640-bridge-only-accept-EAP-locally.patch @@ -1,4 +1,3 @@ -From c6905cfdeb31a5c049db3da434b10fa0d3e83569 Mon Sep 17 00:00:00 2001 From: Felix Fietkau <nbd@nbd.name> Date: Fri, 7 Jul 2017 17:18:54 +0200 Subject: bridge: only accept EAP locally @@ -7,9 +6,9 @@ When bridging, do not forward EAP frames to other ports, only deliver them locally, regardless of the state. Signed-off-by: Felix Fietkau <nbd@nbd.name> +[add disable_eap_hack sysfs attribute] +Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com> --- - net/bridge/br_input.c | 7 +++++-- - 1 file changed, 5 insertions(+), 2 deletions(-) --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -19,7 +18,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> + BR_INPUT_SKB_CB(skb)->brdev = br->dev; + -+ if (skb->protocol == htons(ETH_P_PAE)) ++ if (skb->protocol == htons(ETH_P_PAE) && !br->disable_eap_hack) + return br_pass_frame_up(skb); + if (p->state == BR_STATE_LEARNING) @@ -29,3 +28,55 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> BR_INPUT_SKB_CB(skb)->src_port_isolated = !!(p->flags & BR_ISOLATED); if (IS_ENABLED(CONFIG_INET) && skb->protocol == htons(ETH_P_ARP)) +--- a/net/bridge/br_private.h ++++ b/net/bridge/br_private.h +@@ -320,6 +320,8 @@ struct net_bridge { + u16 group_fwd_mask; + u16 group_fwd_mask_required; + ++ bool disable_eap_hack; ++ + /* STP */ + bridge_id designated_root; + bridge_id bridge_id; +--- a/net/bridge/br_sysfs_br.c ++++ b/net/bridge/br_sysfs_br.c +@@ -170,6 +170,30 @@ static ssize_t group_fwd_mask_store(stru + } + static DEVICE_ATTR_RW(group_fwd_mask); + ++static ssize_t disable_eap_hack_show(struct device *d, ++ struct device_attribute *attr, ++ char *buf) ++{ ++ struct net_bridge *br = to_bridge(d); ++ return sprintf(buf, "%u\n", br->disable_eap_hack); ++} ++ ++static int set_disable_eap_hack(struct net_bridge *br, unsigned long val) ++{ ++ br->disable_eap_hack = !!val; ++ ++ return 0; ++} ++ ++static ssize_t disable_eap_hack_store(struct device *d, ++ struct device_attribute *attr, ++ const char *buf, ++ size_t len) ++{ ++ return store_bridge_parm(d, buf, len, set_disable_eap_hack); ++} ++static DEVICE_ATTR_RW(disable_eap_hack); ++ + static ssize_t priority_show(struct device *d, struct device_attribute *attr, + char *buf) + { +@@ -817,6 +841,7 @@ static struct attribute *bridge_attrs[] + &dev_attr_ageing_time.attr, + &dev_attr_stp_state.attr, + &dev_attr_group_fwd_mask.attr, ++ &dev_attr_disable_eap_hack.attr, + &dev_attr_priority.attr, + &dev_attr_bridge_id.attr, + &dev_attr_root_id.attr, |