package/kernel/mac80211/patches/303-v4.15-0002-brcmfmac-disable-packet-filtering-in-promiscuous-mod.patch

   1 From 6c219b0088158da839a5be63c5b3d96c145501d2 Mon Sep 17 00:00:00 2001
   2 From: Franky Lin <franky.lin@broadcom.com>
   3 Date: Wed, 8 Nov 2017 14:36:32 +0100
   4 Subject: [PATCH] brcmfmac: disable packet filtering in promiscuous mode
   5
   6 Disable arp and nd offload to allow all packets sending to host.
   7
   8 Reported-by: Phil Elwell <phil@raspberrypi.org>
   9 Tested-by: Phil Elwell <phil@raspberrypi.org>
  10 Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
  11 Signed-off-by: Franky Lin <franky.lin@broadcom.com>
  12 Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
  13 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  14 ---
  15  .../broadcom/brcm80211/brcmfmac/cfg80211.c         | 41 ----------------------
  16  .../wireless/broadcom/brcm80211/brcmfmac/core.c    | 38 ++++++++++++++++++++
  17  .../wireless/broadcom/brcm80211/brcmfmac/core.h    |  1 +
  18  3 files changed, 39 insertions(+), 41 deletions(-)
  19
  20 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
  21 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
  22 @@ -472,47 +472,6 @@ send_key_to_dongle(struct brcmf_if *ifp,
  23         return err;
  24  }
  25
  26 -static s32
  27 -brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable)
  28 -{
  29 -       s32 err;
  30 -       u32 mode;
  31 -
  32 -       if (enable)
  33 -               mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
  34 -       else
  35 -               mode = 0;
  36 -
  37 -       /* Try to set and enable ARP offload feature, this may fail, then it  */
  38 -       /* is simply not supported and err 0 will be returned                 */
  39 -       err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
  40 -       if (err) {
  41 -               brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
  42 -                         mode, err);
  43 -               err = 0;
  44 -       } else {
  45 -               err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
  46 -               if (err) {
  47 -                       brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
  48 -                                 enable, err);
  49 -                       err = 0;
  50 -               } else
  51 -                       brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
  52 -                                 enable, mode);
  53 -       }
  54 -
  55 -       err = brcmf_fil_iovar_int_set(ifp, "ndoe", enable);
  56 -       if (err) {
  57 -               brcmf_dbg(TRACE, "failed to configure (%d) ND offload err = %d\n",
  58 -                         enable, err);
  59 -               err = 0;
  60 -       } else
  61 -               brcmf_dbg(TRACE, "successfully configured (%d) ND offload to 0x%x\n",
  62 -                         enable, mode);
  63 -
  64 -       return err;
  65 -}
  66 -
  67  static void
  68  brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
  69  {
  70 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
  71 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
  72 @@ -71,6 +71,43 @@ struct brcmf_if *brcmf_get_ifp(struct br
  73         return ifp;
  74  }
  75
  76 +void brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable)
  77 +{
  78 +       s32 err;
  79 +       u32 mode;
  80 +
  81 +       if (enable)
  82 +               mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
  83 +       else
  84 +               mode = 0;
  85 +
  86 +       /* Try to set and enable ARP offload feature, this may fail, then it  */
  87 +       /* is simply not supported and err 0 will be returned                 */
  88 +       err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
  89 +       if (err) {
  90 +               brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
  91 +                         mode, err);
  92 +       } else {
  93 +               err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
  94 +               if (err) {
  95 +                       brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
  96 +                                 enable, err);
  97 +               } else {
  98 +                       brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
  99 +                                 enable, mode);
 100 +               }
 101 +       }
 102 +
 103 +       err = brcmf_fil_iovar_int_set(ifp, "ndoe", enable);
 104 +       if (err) {
 105 +               brcmf_dbg(TRACE, "failed to configure (%d) ND offload err = %d\n",
 106 +                         enable, err);
 107 +       } else {
 108 +               brcmf_dbg(TRACE, "successfully configured (%d) ND offload to 0x%x\n",
 109 +                         enable, mode);
 110 +       }
 111 +}
 112 +
 113  static void _brcmf_set_multicast_list(struct work_struct *work)
 114  {
 115         struct brcmf_if *ifp;
 116 @@ -134,6 +171,7 @@ static void _brcmf_set_multicast_list(st
 117         if (err < 0)
 118                 brcmf_err("Setting BRCMF_C_SET_PROMISC failed, %d\n",
 119                           err);
 120 +       brcmf_configure_arp_nd_offload(ifp, !cmd_value);
 121  }
 122
 123  #if IS_ENABLED(CONFIG_IPV6)
 124 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
 125 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
 126 @@ -203,6 +203,7 @@ int brcmf_netdev_wait_pend8021x(struct b
 127  /* Return pointer to interface name */
 128  char *brcmf_ifname(struct brcmf_if *ifp);
 129  struct brcmf_if *brcmf_get_ifp(struct brcmf_pub *drvr, int ifidx);
 130 +void brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable);
 131  int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked);
 132  struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
 133                               bool is_p2pdev, const char *name, u8 *mac_addr);