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From 87b707ed572548b3d332c327df5df9455dd98ca7 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Thu, 24 Aug 2017 16:16:16 +0100
Subject: [PATCH 151/806] brcmfmac: Disable ARP offloading when promiscuous
This is a test patch for brcmfmac from Franky Lin at Broadcom to disable
ARP offloading when in promiscuous mode, re-enabling the ability to
sniff ARP packets over WiFi.
See: https://github.com/raspberrypi/linux/issues/2171
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
.../net/wireless/broadcom/brcm80211/brcmfmac/core.c | 11 ++++++-----
.../net/wireless/broadcom/brcm80211/brcmfmac/core.h | 1 +
2 files changed, 7 insertions(+), 5 deletions(-)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -88,25 +88,25 @@ void brcmf_configure_arp_nd_offload(stru
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);
- } else {
+ 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) {
+ if (err)
brcmf_dbg(TRACE, "failed to configure (%d) ND offload err = %d\n",
enable, err);
- } else {
+ 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)
@@ -172,6 +172,7 @@ 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);
}
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
@@ -210,6 +210,7 @@ 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);
+void brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable);
struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
bool is_p2pdev, const char *name, u8 *mac_addr);
void brcmf_remove_interface(struct brcmf_if *ifp, bool rtnl_locked);
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