diff options
| -rw-r--r-- | include/net/mac80211.h | 4 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 1 | ||||
| -rw-r--r-- | net/mac80211/tx.c | 39 | ||||
| -rw-r--r-- | net/mac80211/wpa.c | 3 |
4 files changed, 20 insertions, 27 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index cd108df..05f1021 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -375,6 +375,9 @@ struct ieee80211_bss_conf { * @IEEE80211_TX_CTL_USE_MINRATE: This frame will be sent at lowest rate. * This flag is used to send nullfunc frame at minimum rate when * the nullfunc is used for connection monitoring purpose. + * @IEEE80211_TX_CTL_DONTFRAG: Don't fragment this packet even if it + * would be fragmented by size (this is optional, only used for + * monitor injection). * * Note: If you have to add new flags to the enumeration, then don't * forget to update %IEEE80211_TX_TEMPORARY_FLAGS when necessary. @@ -408,6 +411,7 @@ enum mac80211_tx_control_flags { IEEE80211_TX_CTL_NO_CCK_RATE = BIT(27), IEEE80211_TX_STATUS_EOSP = BIT(28), IEEE80211_TX_CTL_USE_MINRATE = BIT(29), + IEEE80211_TX_CTL_DONTFRAG = BIT(30), }; #define IEEE80211_TX_CTL_STBC_SHIFT 23 diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index a6cbc0a..4ad1657 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -136,7 +136,6 @@ typedef unsigned __bitwise__ ieee80211_tx_result; #define TX_DROP ((__force ieee80211_tx_result) 1u) #define TX_QUEUED ((__force ieee80211_tx_result) 2u) -#define IEEE80211_TX_FRAGMENTED BIT(0) #define IEEE80211_TX_UNICAST BIT(1) #define IEEE80211_TX_PS_BUFFERED BIT(2) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 6f2254a..7f7d45c 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -898,7 +898,10 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) int hdrlen; int fragnum; - if (!(tx->flags & IEEE80211_TX_FRAGMENTED)) + if (info->flags & IEEE80211_TX_CTL_DONTFRAG) + return TX_CONTINUE; + + if (tx->local->ops->set_frag_threshold) return TX_CONTINUE; /* @@ -911,7 +914,7 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) hdrlen = ieee80211_hdrlen(hdr->frame_control); - /* internal error, why is TX_FRAGMENTED set? */ + /* internal error, why isn't DONTFRAG set? */ if (WARN_ON(skb->len + FCS_LEN <= frag_threshold)) return TX_DROP; @@ -1050,17 +1053,13 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, struct ieee80211_radiotap_iterator iterator; struct ieee80211_radiotap_header *rthdr = (struct ieee80211_radiotap_header *) skb->data; - bool hw_frag; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len, NULL); u16 txflags; - info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; - tx->flags &= ~IEEE80211_TX_FRAGMENTED; - - /* packet is fragmented in HW if we have a non-NULL driver callback */ - hw_frag = (tx->local->ops->set_frag_threshold != NULL); + info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | + IEEE80211_TX_CTL_DONTFRAG; /* * for every radiotap entry that is present @@ -1098,9 +1097,8 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, } if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP) info->flags &= ~IEEE80211_TX_INTFL_DONT_ENCRYPT; - if ((*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG) && - !hw_frag) - tx->flags |= IEEE80211_TX_FRAGMENTED; + if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG) + info->flags &= ~IEEE80211_TX_CTL_DONTFRAG; break; case IEEE80211_RADIOTAP_TX_FLAGS: @@ -1206,13 +1204,6 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, tx->local = local; tx->sdata = sdata; tx->channel = local->hw.conf.channel; - /* - * Set this flag (used below to indicate "automatic fragmentation"), - * it will be cleared/left by radiotap as desired. - * Only valid when fragmentation is done by the stack. - */ - if (!local->ops->set_frag_threshold) - tx->flags |= IEEE80211_TX_FRAGMENTED; /* process and remove the injection radiotap header */ if (unlikely(info->flags & IEEE80211_TX_INTFL_HAS_RADIOTAP)) { @@ -1281,13 +1272,11 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, */ } - if (tx->flags & IEEE80211_TX_FRAGMENTED) { - if ((tx->flags & IEEE80211_TX_UNICAST) && - skb->len + FCS_LEN > local->hw.wiphy->frag_threshold && - !(info->flags & IEEE80211_TX_CTL_AMPDU)) - tx->flags |= IEEE80211_TX_FRAGMENTED; - else - tx->flags &= ~IEEE80211_TX_FRAGMENTED; + if (!(info->flags & IEEE80211_TX_CTL_DONTFRAG)) { + if (!(tx->flags & IEEE80211_TX_UNICAST) || + skb->len + FCS_LEN <= local->hw.wiphy->frag_threshold || + info->flags & IEEE80211_TX_CTL_AMPDU) + info->flags |= IEEE80211_TX_CTL_DONTFRAG; } if (!tx->sta) diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 7bc8702..f614ce7 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -53,7 +53,8 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx) } if (info->control.hw_key && - !(tx->flags & IEEE80211_TX_FRAGMENTED) && + (info->flags & IEEE80211_TX_CTL_DONTFRAG || + tx->local->ops->set_frag_threshold) && !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC)) { /* hwaccel - with no need for SW-generated MMIC */ return TX_CONTINUE; |
