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| author |   Jason A. Donenfeld <Jason@zx2c4.com> | 2017-11-17 11:33:24 +0100 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2017-11-17 11:33:24 +0100 |
| commit | 82e6e3b2588939b03d0a534b85f446183a13ceda (patch) | |
| tree | 3dab6c0d4d9e000d214251714ff8238a10c2b4a1 /src/socket.h | |
| parent | compat: fix compilation with PaX (diff) | |
| download | wireguard-monolithic-historical-82e6e3b2588939b03d0a534b85f446183a13ceda.tar.xz wireguard-monolithic-historical-82e6e3b2588939b03d0a534b85f446183a13ceda.zip | |
socket: only free socket after successful creation of new
When an interface is down, the socket port can change freely. A socket
will be allocated when the interface comes up, and if a socket can't be
allocated, the interface doesn't come up.
However, a socket port can change while the interface is up. In this
case, if a new socket with a new port cannot be allocated, it's
important to keep the interface in a consistent state. The choices are
either to bring down the interface or to preserve the old socket. This
patch implements the latter.
Reported-by: Marc-Antoine Perennou <keruspe@exherbo.org>
Diffstat (limited to '')
| -rw-r--r-- | src/socket.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/socket.h b/src/socket.h index 843d544..161bd0b 100644 --- a/src/socket.h +++ b/src/socket.h @@ -8,8 +8,8 @@ #include <linux/if_vlan.h> #include <linux/if_ether.h> -int socket_init(struct wireguard_device *wg); -void socket_uninit(struct wireguard_device *wg); +int socket_init(struct wireguard_device *wg, u16 port); +void socket_reinit(struct wireguard_device *wg, struct sock *new4, struct sock *new6); int socket_send_buffer_to_peer(struct wireguard_peer *peer, void *data, size_t len, u8 ds); int socket_send_skb_to_peer(struct wireguard_peer *peer, struct sk_buff *skb, u8 ds); int socket_send_buffer_as_reply_to_skb(struct wireguard_device *wg, struct sk_buff *in_skb, void *out_buffer, size_t len); |