Refactor in order to make use of generic fast xmit functions Fix issues with mesh SA/DA addressing Signed-off-by: Felix Fietkau <nbd@nbd.name>
		
			
				
	
	
		
			33 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			33 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
From: Felix Fietkau <nbd@nbd.name>
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Date: Mon, 20 Feb 2023 12:50:50 +0100
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Subject: [PATCH] mac80211: fix mesh forwarding
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Linearize packets (needed for forwarding A-MSDU subframes).
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Fix network header offset to fix flow dissector (and fair queueing).
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Fixes: 986e43b19ae9 ("wifi: mac80211: fix receiving A-MSDU frames on mesh interfaces")
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/net/mac80211/rx.c
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+++ b/net/mac80211/rx.c
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@@ -2904,6 +2904,9 @@ ieee80211_rx_mesh_data(struct ieee80211_
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 		if (skb_cow_head(fwd_skb, hdrlen - sizeof(struct ethhdr)))
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 			return RX_DROP_UNUSABLE;
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+
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+		if (skb_linearize(fwd_skb))
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+			return RX_DROP_UNUSABLE;
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 	}
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 	fwd_hdr = skb_push(fwd_skb, hdrlen - sizeof(struct ethhdr));
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@@ -2918,7 +2921,7 @@ ieee80211_rx_mesh_data(struct ieee80211_
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 		hdrlen += ETH_ALEN;
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 	else
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 		fwd_skb->protocol = htons(fwd_skb->len - hdrlen);
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-	skb_set_network_header(fwd_skb, hdrlen);
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+	skb_set_network_header(fwd_skb, hdrlen + 2);
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 	info = IEEE80211_SKB_CB(fwd_skb);
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 	memset(info, 0, sizeof(*info));
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