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From 6c219b0088158da839a5be63c5b3d96c145501d2 Mon Sep 17 00:00:00 2001
From: Franky Lin <franky.lin@broadcom.com>
Date: Wed, 8 Nov 2017 14:36:32 +0100
Subject: [PATCH] brcmfmac: disable packet filtering in promiscuous mode
Disable arp and nd offload to allow all packets sending to host.
Reported-by: Phil Elwell <phil@raspberrypi.org>
Tested-by: Phil Elwell <phil@raspberrypi.org>
Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
.../broadcom/brcm80211/brcmfmac/cfg80211.c | 41 ----------------------
.../wireless/broadcom/brcm80211/brcmfmac/core.c | 38 ++++++++++++++++++++
.../wireless/broadcom/brcm80211/brcmfmac/core.h | 1 +
3 files changed, 39 insertions(+), 41 deletions(-)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -472,47 +472,6 @@ send_key_to_dongle(struct brcmf_if *ifp,
return err;
}
-static s32
-brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable)
-{
- s32 err;
- u32 mode;
-
- if (enable)
- mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
- else
- mode = 0;
-
- /* Try to set and enable ARP offload feature, this may fail, then it */
- /* is simply not supported and err 0 will be returned */
- err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
- if (err) {
- brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
- mode, err);
- err = 0;
- } else {
- err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
- if (err) {
- brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
- enable, err);
- err = 0;
- } else
- brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
- enable, mode);
- }
-
- err = brcmf_fil_iovar_int_set(ifp, "ndoe", enable);
- if (err) {
- brcmf_dbg(TRACE, "failed to configure (%d) ND offload err = %d\n",
- enable, err);
- err = 0;
- } else
- brcmf_dbg(TRACE, "successfully configured (%d) ND offload to 0x%x\n",
- enable, mode);
-
- return err;
-}
-
static void
brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
{
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -71,6 +71,43 @@ struct brcmf_if *brcmf_get_ifp(struct br
return ifp;
}
+void brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable)
+{
+ s32 err;
+ u32 mode;
+
+ if (enable)
+ mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
+ else
+ mode = 0;
+
+ /* Try to set and enable ARP offload feature, this may fail, then it */
+ /* is simply not supported and err 0 will be returned */
+ err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
+ if (err) {
+ brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
+ mode, err);
+ } else {
+ err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
+ if (err) {
+ brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
+ enable, err);
+ } else {
+ brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
+ enable, mode);
+ }
+ }
+
+ err = brcmf_fil_iovar_int_set(ifp, "ndoe", enable);
+ if (err) {
+ brcmf_dbg(TRACE, "failed to configure (%d) ND offload err = %d\n",
+ enable, err);
+ } else {
+ brcmf_dbg(TRACE, "successfully configured (%d) ND offload to 0x%x\n",
+ enable, mode);
+ }
+}
+
static void _brcmf_set_multicast_list(struct work_struct *work)
{
struct brcmf_if *ifp;
@@ -134,6 +171,7 @@ static void _brcmf_set_multicast_list(st
if (err < 0)
brcmf_err("Setting BRCMF_C_SET_PROMISC failed, %d\n",
err);
+ brcmf_configure_arp_nd_offload(ifp, !cmd_value);
}
#if IS_ENABLED(CONFIG_IPV6)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
@@ -203,6 +203,7 @@ int brcmf_netdev_wait_pend8021x(struct b
/* Return pointer to interface name */
char *brcmf_ifname(struct brcmf_if *ifp);
struct brcmf_if *brcmf_get_ifp(struct brcmf_pub *drvr, int ifidx);
+void brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable);
int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked);
struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
bool is_p2pdev, const char *name, u8 *mac_addr);
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