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//
// WireGuardGoWrapper.m
// WireGuardNetworkExtension
//
// Created by Jeroen Leenarts on 21-06-18.
// Copyright © 2018 Wireguard. All rights reserved.
//
#import "WireGuardGoWrapper.h"
#include "wireguard.h"
/// Trampoline function
static ssize_t do_read(const void *ctx, const unsigned char *buf, size_t len);
/// Trampoline function
static ssize_t do_write(const void *ctx, const unsigned char *buf, size_t len);
@interface WireGuardGoWrapper ()
@property (nonatomic, assign) int handle;
@property (nonatomic, assign) BOOL isClosed;
@end
@implementation WireGuardGoWrapper
- (void) turnOnWithInterfaceName: (NSString *)interfaceName settingsString: (NSString *)settingsString
{
const char * ifName = [interfaceName UTF8String];
const char * settings = [settingsString UTF8String];
self.handle = wgTurnOn((gostring_t){ .p = ifName, .n = interfaceName.length }, (gostring_t){ .p = settings, .n = settingsString.length }, do_read, do_write, (__bridge void *)(self));
}
- (void) turnOff
{
self.isClosed = YES;
wgTurnOff(self.handle);
}
@end
static ssize_t do_read(const void *ctx, const unsigned char *buf, size_t len)
{
WireGuardGoWrapper *wrapper = (__bridge WireGuardGoWrapper *)ctx;
printf("Reading from instance with ctx %p into buffer %p of length %zu\n", ctx, buf, len);
sleep(1);
return wrapper.isClosed ? -1 : 0;
}
static ssize_t do_write(const void *ctx, const unsigned char *buf, size_t len)
{
WireGuardGoWrapper *wrapper = (__bridge WireGuardGoWrapper *)ctx;
printf("Writing from instance with ctx %p into buffer %p of length %zu\n", ctx, buf, len);
return len;
}
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