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[lwip-devel] [bug #49662] UDP layer should filter incoming multicast dat
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From: |
Dirk Ziegelmeier |
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Subject: |
[lwip-devel] [bug #49662] UDP layer should filter incoming multicast datagrams against the bound IP address |
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Date: |
Wed, 23 Nov 2016 12:04:09 +0000 (UTC) |
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User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:50.0) Gecko/20100101 Firefox/50.0 |
Update of bug #49662 (project lwip):
Status: None => Fixed
Open/Closed: Open => Closed
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Follow-up Comment #1:
Fixed in udp_input_local_match(). After some socket API reading, it seems this
behavior is what the socket API does.
This may break existing applications - it is now NOT possible to receive
multicasts just from a specific netif any more.
Users get the multicasts of all netifs now, and have to compare
ip_current_netif() with the desired netif.
The current behavior was added in 2007, but it does not make much sense,
because this can be solved otherwise, as described above.
lwip-developers: Is this change OK? Please comment.
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