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Increase input and output buffers of connected sockets

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This commit is contained in:
Sergey Abramchuk 2017-05-10 11:33:07 +03:00
parent adb995579e
commit a753067e64
1 changed files with 22 additions and 0 deletions
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22
OpenVPN Adapter/OpenVPNAdapter.mm
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@ -88,6 +88,11 @@ static void socketCallback(CFSocketRef socket, CFSocketCallBackType type, CFData
return NO;
}
if (![self configureBufferSizeForSocket: sockets[0]] || ![self configureBufferSizeForSocket: sockets[1]]) {
NSLog(@"Failed to configure buffer size of the sockets");
return NO;
}
CFSocketContext socketCtxt = {0, (__bridge void *)self, NULL, NULL, NULL};
self.vpnSocket = CFSocketCreateWithNative(kCFAllocatorDefault, sockets[0], kCFSocketDataCallBack, &socketCallback, &socketCtxt);
@ -106,6 +111,23 @@ static void socketCallback(CFSocketRef socket, CFSocketCallBackType type, CFData
return YES;
}
- (BOOL)configureBufferSizeForSocket:(int)socket {
int buf_value = 65536;
socklen_t buf_len = sizeof(buf_value);
if (setsockopt(socket, SOL_SOCKET, SO_RCVBUF, &buf_value, buf_len) == -1) {
NSLog(@"Failed to setup buffer size for input: %@", [NSString stringWithUTF8String:strerror(errno)]);
return NO;
}
if (setsockopt(socket, SOL_SOCKET, SO_SNDBUF, &buf_value, buf_len) == -1) {
NSLog(@"Failed to setup buffer size for output: %@", [NSString stringWithUTF8String:strerror(errno)]);
return NO;
}
return YES;
}
#pragma mark TUN Configuration
- (BOOL)setRemoteAddress:(NSString *)address isIPv6:(BOOL)isIPv6 {