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authorJason A. Donenfeld <Jason@zx2c4.com>2018-02-12 11:57:32 +0100
committerJason A. Donenfeld <Jason@zx2c4.com>2018-02-12 12:04:53 +0100
commitcb86f2cd33a845872198c4bb207bc13e739b2d7e (patch)
treee5ca71c69d67fae396edfd5e8fd7971dc5e2ce3f /src/crypto/chacha20poly1305.c
parentd39c586ee03387e9d03f4dff1715fcd309738145 (diff)
socket: free skb if there isn't an endpoint
Because the packet transmission interface in Linux, in general, has the characteristic of "consuming" skbs, our own socket_send family too must always consume skbs. This means that when a caller passes an skb to a socket_send function, he looses ownership and expects for the skb to be freed by the socket_send function, not by himself. Therefore, it's important that we actually carry out this contract under all circumstances, even when there's no endpoint available. This condition could be hit by setting up a peer with a persistent keepalive but no endpoint, or by removing an endpoint once packets were queued up to be sent already. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'src/crypto/chacha20poly1305.c')
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