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eth_hdr to pico_eth_hdr reference fix, doc updates, picoTCP build for xcode

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This commit is contained in:
Joseph Henry
2016-12-06 16:42:47 -08:00
parent 307fbb5de9
commit 7090c8fe5b
22 changed files with 2192 additions and 44 deletions
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39
docs/rxtx.md
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@@ -15,12 +15,14 @@ Our library's implementation of `socket()` is executed instead of the kernel's.
From your app's perspective nothing out of the ordinary has happened. It called `socket()`, and got a file descriptor back.
***
## Establishing a connection
When your app attempts to establish a connection over a socket the following happens:
You app connects to a remote host:
```
@@ -35,16 +37,21 @@ pico_handleConnect()
pico_socket_connect()
```
***
## Acception a connection
## Accepting a connection
Your app places a socket into a listen state:
```
listen()
```
An RPC_LISTEN call is sent to the **tap service** and **stack driver**
An `RPC_LISTEN` call is sent to the **tap service** and **stack driver**
You app accepts a connection:
@@ -54,7 +61,13 @@ accept()
The **network stack** raises a `PICO_SOCK_EV_CONN` event which calls `pico_cb_socket_activity()`. From here we request a new `pico_socket` be created to represent the new connection. This is done via `pico_socket_accept()`. Once we have a valid `pico_socket`, we create an `AF_UNIX` socket pair. We associate one end with the newly-created `pico_socket` via a `Connection` object. And we send the other end of the socket pair to the app.
Out library's implementation of `accept()` will read and return the new file descriptor representing one end of the socket pair. From your app's prespective this is a normal file descriptor.
Our library's implementation of `accept()` will read and return the new file descriptor representing one end of the socket pair. From your app's prespective this is a normal file descriptor.
***
@@ -72,22 +85,22 @@ Periodically the **network stack** thread will call `pico_eth_poll()`, this is r
```
pico_eth_poll()
<pico_frame_rxbuf> ---> pico_stack_recv
<pico_frame_rxbuf> ---> pico_stack_recv()
```
After some time has passed and the **network stack** has processed the incoming frames a `PICO_SOCK_EV_RD` event will be triggered which calls `pico_cb_socket_activity()`, and ultimately `pico_cb_tcp_read()`. This is where we copy the incoming data from the `pico_socket` to the `Connection`'s `rxbuf` (different from `pico_frame_rxbuf`). We then notify the **tap service** that the `PhySocket` (a wrapped file descriptor with one end visible to the application) associated with this `Connection` has data in its `rxbuf` that needs to be written so the app can read it.
```
pico_cb_socket_activity()
pico_cb_tcp_read() ---> conn->rxbuf
setNotifyWritable=TRUE
pico_cb_tcp_read() ---> <rxbuf>
setNotifyWritable(TRUE)
```
After some (more) time, the **tap service** thread will call `pico_handleRead()`, this will copy the data from the `rxbuf` to the `AF_UNIX` socket which links the service and your application.
```
pico_handleRead()
streamSend(): conn->rxbuf --- conn->sock
streamSend(): <rxbuf> ---> PhySock
```
After this point it's up to your application to read the data via a conventional `read()`, `recv()`, or `recvfrom()` call.
@@ -97,6 +110,12 @@ read()
```
***
## Sending data
@@ -112,7 +131,7 @@ The other end of the `AF_UNIX` socket which was written to is monitored by the *
```
phyOnUnixData()
handleWrite()
pico_socket_write(): conn->txbuf ---> conn->picosock
pico_socket_write(): <txbuf> ---> picosock
```
Periodically a `PICO_SOCK_EV_WR` event will be raised by the **network stack**, this will call `pico_cb_socket_activity()` and ultimately `pico_cb_tcp_write()` where a `pico_socket_write()` call will be made to copy any remaining `txbuf` contents into the stack.

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integrations/apple/ZeroTierSDK_Apple_pico/ZeroTierSDK_Apple.xcodeproj/project.pbxproj Normal file
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integrations/apple/ZeroTierSDK_Apple_pico/ZeroTierSDK_Apple.xcodeproj/xcshareddata/xcschemes/ZeroTierSDK_Unity3D_OSX.xcscheme Normal file
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<string>????</string>
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19
integrations/apple/ZeroTierSDK_Apple_pico/ZeroTierSDK_OSX/ZeroTierSDK_OSX.h Normal file
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//
// ZeroTierSDK_OSX.h
// ZeroTierSDK_OSX
//
// Created by Joseph Henry on 6/15/16.
// Copyright © 2016 ZeroTier Inc. All rights reserved.
//
#import <Cocoa/Cocoa.h>
//! Project version number for ZeroTierSDK_OSX.
FOUNDATION_EXPORT double ZeroTierSDK_OSXVersionNumber;
//! Project version string for ZeroTierSDK_OSX.
FOUNDATION_EXPORT const unsigned char ZeroTierSDK_OSXVersionString[];
// In this header, you should import all the public headers of your framework using statements like #import <ZeroTierSDK_OSX/PublicHeader.h>
#import <ZeroTierSDK_OSX/SDK.h>

28
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<key>CFBundlePackageType</key>
<string>FMWK</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>$(CURRENT_PROJECT_VERSION)</string>
<key>NSPrincipalClass</key>
<string></string>
</dict>
</plist>

19
integrations/apple/ZeroTierSDK_Apple_pico/ZeroTierSDK_iOS/ZeroTierSDK_iOS.h Normal file
View File

@@ -0,0 +1,19 @@
//
// ZeroTierSDK_iOS.h
// ZeroTierSDK_iOS
//
// Created by Joseph Henry on 6/15/16.
// Copyright © 2016 ZeroTier Inc. All rights reserved.
//
#import <UIKit/UIKit.h>
//! Project version number for ZeroTierSDK_iOS.
FOUNDATION_EXPORT double ZeroTierSDK_iOSVersionNumber;
//! Project version string for ZeroTierSDK_iOS.
FOUNDATION_EXPORT const unsigned char ZeroTierSDK_iOSVersionString[];
// In this header, you should import all the public headers of your framework using statements like #import <ZeroTierSDK_iOS/PublicHeader.h>

3
integrations/apple/example_app/OSX/Example_OSX_App.xcodeproj/project.pbxproj
View File

@@ -124,6 +124,7 @@
TargetAttributes = {
7CFCB42C1D1AFEE800D3E66C = {
CreatedOnToolsVersion = 7.3;
LastSwiftMigration = 0810;
};
};
};
@@ -286,6 +287,7 @@
SWIFT_OBJC_BRIDGING_HEADER = "$(PROJECT_DIR)/../../../../src/wrappers/swift/Apple-Bridging-Header.h";
"SWIFT_OBJC_BRIDGING_HEADER[arch=*]" = "$(PROJECT_DIR)/../../../../src/wrappers/swift/Apple-Bridging-Header.h";
SWIFT_OPTIMIZATION_LEVEL = "-Onone";
SWIFT_VERSION = 2.3;
};
name = Debug;
};
@@ -305,6 +307,7 @@
PRODUCT_BUNDLE_IDENTIFIER = "zerotier.Example-OSX-App";
PRODUCT_NAME = "$(TARGET_NAME)";
SWIFT_OBJC_BRIDGING_HEADER = "$(PROJECT_DIR)/../../../../src/wrappers/swift/Apple-Bridging-Header.h";
SWIFT_VERSION = 2.3;
};
name = Release;
};

8
integrations/apple/example_app/OSX/Example_OSX_App/ViewController.swift
View File

@@ -95,7 +95,7 @@ class ViewController: NSViewController {
// Connect to remote host on ZeroTier virtual network
@IBAction func UI_Connect(sender: AnyObject) {
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), {
self.connect_thread = NSThread(target:self, selector:"attempt_connect", object:nil)
self.connect_thread = NSThread(target:self, selector:#selector(ViewController.attempt_connect), object:nil)
self.connect_thread.start()
});
}
@@ -134,7 +134,7 @@ class ViewController: NSViewController {
// Bind a ZeroTier socket
@IBAction func UI_Bind(sender: AnyObject) {
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), {
self.bind_thread = NSThread(target:self, selector:"attempt_bind", object:nil)
self.bind_thread = NSThread(target:self, selector:#selector(ViewController.attempt_bind), object:nil)
self.bind_thread.start()
});
}
@@ -181,7 +181,7 @@ class ViewController: NSViewController {
{
sleep(1)
dispatch_async(dispatch_get_main_queue()) {
var str_buf = [Int8](count: 16, repeatedValue: 0)
let str_buf = [Int8](count: 16, repeatedValue: 0)
print("addr = ", String.fromCString(str_buf))
}
@@ -261,7 +261,7 @@ class ViewController: NSViewController {
// Update UI on RX of data
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), {
self.rx_thread = NSThread(target:self, selector:"update_rx", object:nil)
self.rx_thread = NSThread(target:self, selector:#selector(ViewController.update_rx), object:nil)
self.rx_thread.start()
});
}

25
src/stack_drivers/picotcp/picotcp.cpp
View File

@@ -36,6 +36,7 @@
#include "pico_dev_tap.h"
#include "pico_protocol.h"
#include "pico_socket.h"
#include "pico_eth.h"
namespace ZeroTier {
@@ -79,8 +80,8 @@ namespace ZeroTier {
if(ip.isV4())
{
struct pico_ip4 ipaddr, netmask;
ipaddr.addr = *((u32_t *)ip.rawIpData());
netmask.addr = *((u32_t *)ip.netmask().rawIpData());
ipaddr.addr = *((uint32_t *)ip.rawIpData());
netmask.addr = *((uint32_t *)ip.netmask().rawIpData());
uint8_t mac[PICO_SIZE_ETH];
picotap->_mac.copyTo(mac, PICO_SIZE_ETH);
DEBUG_ATTN("mac = %s", picotap->_mac.toString().c_str());
@@ -365,16 +366,16 @@ namespace ZeroTier {
int pico_eth_send(struct pico_device *dev, void *buf, int len)
{
DEBUG_INFO("len=%d", len);
struct eth_hdr *ethhdr;
ethhdr = (struct eth_hdr *)buf;
struct pico_eth_hdr *ethhdr;
ethhdr = (struct pico_eth_hdr *)buf;
MAC src_mac;
MAC dest_mac;
src_mac.setTo(ethhdr->src.addr, 6);
dest_mac.setTo(ethhdr->dest.addr, 6);
src_mac.setTo(ethhdr->saddr, 6);
dest_mac.setTo(ethhdr->daddr, 6);
picotap->_handler(picotap->_arg,picotap->_nwid,src_mac,dest_mac,
Utils::ntoh((uint16_t)ethhdr->type),0, ((char*)buf) + sizeof(struct eth_hdr),len - sizeof(struct eth_hdr));
Utils::ntoh((uint16_t)ethhdr->proto),0, ((char*)buf) + sizeof(struct pico_eth_hdr),len - sizeof(struct pico_eth_hdr));
return len;
}
@@ -402,11 +403,11 @@ namespace ZeroTier {
//}
// assemble new eth header
struct eth_hdr ethhdr;
from.copyTo(ethhdr.src.addr, 6);
to.copyTo(ethhdr.dest.addr, 6);
ethhdr.type = Utils::hton((uint16_t)etherType);
int newlen = len+sizeof(struct eth_hdr);
struct pico_eth_hdr ethhdr;
from.copyTo(ethhdr.saddr, 6);
to.copyTo(ethhdr.daddr, 6);
ethhdr.proto = Utils::hton((uint16_t)etherType);
int newlen = len+sizeof(struct pico_eth_hdr);
//
memcpy(tap->pico_frame_rxbuf + tap->pico_frame_rxbuf_tot, &newlen, sizeof(newlen)); // size of frame
memcpy(tap->pico_frame_rxbuf + tap->pico_frame_rxbuf_tot + sizeof(newlen), &ethhdr, sizeof(ethhdr)); // new eth header

12
src/stack_drivers/picotcp/picotcp.hpp
View File

@@ -44,7 +44,6 @@
#include "Phy.hpp"
#include "debug.h"
#include "tap.hpp"
#include "pico_stack.h"
#include "pico_ipv4.h"
@@ -52,6 +51,10 @@
#include "pico_dev_tap.h"
#include "pico_protocol.h"
#include "pico_socket.h"
#include "pico_device.h"
#include "pico_ipv6.h"
#include "tap.hpp"
// picoTCP API function signatures
#define PICO_IPV4_TO_STRING_SIG char *ipbuf, const uint32_t ip
@@ -78,7 +81,6 @@
#define PICO_SOCKET_SHUTDOWN_SIG struct pico_socket *s, int mode
#define PICO_SOCKET_ACCEPT_SIG struct pico_socket *s, void *orig, uint16_t *port
#define PICO_IPV6_LINK_ADD_SIG struct pico_device *dev, struct pico_ip6 address, struct pico_ip6 netmask
//#define PICO_IPV6_SOURCE_FIND_SIG strut pico_ip6 *dst
namespace ZeroTier {
@@ -163,7 +165,6 @@ namespace ZeroTier {
int (*_pico_socket_shutdown)(PICO_SOCKET_SHUTDOWN_SIG);
struct pico_socket *(*_pico_socket_accept)(PICO_SOCKET_ACCEPT_SIG);
int (*_pico_ipv6_link_add)(PICO_IPV6_LINK_ADD_SIG);
//struct pico_ip6 *(*pico_ipv6_source_find)(PICO_IPV6_SOURCE_FIND_SIG);
Mutex _lock;
Mutex _lock_mem;
@@ -213,7 +214,7 @@ namespace ZeroTier {
_pico_socket_recvfrom = (int32_t(*)(PICO_SOCKET_RECVFROM_SIG))&pico_socket_recvfrom;
_pico_socket_open = (struct pico_socket*(*)(PICO_SOCKET_OPEN_SIG))&pico_socket_open;
_pico_socket_bind = (int(*)(PICO_SOCKET_BIND_SIG))&pico_socket_bind;
_pico_socket_connect = (int(*)(PICO_SOCKET_CONNECT_SIG))&pico_socket_connect;
_pico_socket_connect = (int(*)(PICO_SOCKET_CONNECT_SIG))xt;
_pico_socket_listen = (int(*)(PICO_SOCKET_LISTEN_SIG))&pico_socket_listen;
_pico_socket_read = (int(*)(PICO_SOCKET_READ_SIG))&pico_socket_read;
_pico_socket_write = (int(*)(PICO_SOCKET_WRITE_SIG))&pico_socket_write;
@@ -221,7 +222,6 @@ namespace ZeroTier {
_pico_socket_shutdown = (int(*)(PICO_SOCKET_SHUTDOWN_SIG))&pico_socket_shutdown;
_pico_socket_accept = (struct pico_socket*(*)(PICO_SOCKET_ACCEPT_SIG))&pico_socket_accept;
_pico_ipv6_link_add = (int(*)(PICO_IPV6_LINK_ADD_SIG))&pico_ipv6_link_add;
//_pico_ipv6_source_find = (struct pico_ip6 *(*))(PICO_IPV6_SOURCE_FIND_SIG))&pico_ipv6_source_find;
#endif
@@ -256,7 +256,6 @@ namespace ZeroTier {
_pico_socket_shutdown = (int(*)(PICO_SOCKET_SHUTDOWN_SIG))dlsym(_libref, "pico_socket_shutdown");
_pico_socket_accept = (struct pico_socket*(*)(PICO_SOCKET_ACCEPT_SIG))dlsym(_libref, "pico_socket_accept");
_pico_ipv6_link_add = (int(*)(PICO_IPV6_LINK_ADD_SIG))dlsym(_libref, "pico_ipv6_link_add");
//_pico_ipv6_source_find = (struct pico_ip6 *(*))(PICO_IPV6_SOURCE_FIND_SIG))dlsym(_libref, "pico_ipv6_source_find");
#endif
}
@@ -293,7 +292,6 @@ namespace ZeroTier {
inline int __pico_socket_shutdown(PICO_SOCKET_SHUTDOWN_SIG) throw() { DEBUG_STACK(); Mutex::Lock _l(_lock); return _pico_socket_shutdown(s, mode); }
inline struct pico_socket * __pico_socket_accept(PICO_SOCKET_ACCEPT_SIG) throw() { DEBUG_ATTN(); /*Mutex::Lock _l(_lock);*/ return _pico_socket_accept(s, orig, port); }
inline int __pico_ipv6_link_add(PICO_IPV6_LINK_ADD_SIG) throw() { DEBUG_STACK(); Mutex::Lock _l(_lock); return _pico_ipv6_link_add(dev, address, netmask); }
//inline struct pico_ipv6 * __pico_ipv6_source_find(PICO_IPV6_SOURCE_FIND_SIG) throw() { DEBUG_STACK(); Mutex::Lock _l(_lock)l return _pico_ipv6_source_find(dst); }
};
} // namespace ZeroTier

13
src/tap.hpp
View File

@@ -44,12 +44,13 @@
#include "Thread.hpp"
#include "Phy.hpp"
#include "netif/etharp.h"
#if defined(SDK_LWIP)
#include "lwip.hpp"
#include "netif/etharp.h"
#endif
#include "defs.h"
#include "rpc.h"
#include "lwip.hpp"
// #include "jip.hpp"
#if defined(SDK_PICOTCP)
#include "picotcp.hpp"
@@ -172,6 +173,7 @@ namespace ZeroTier {
// lwIP
#if defined(SDK_LWIP)
netif interface, interface6;
lwIP_stack *lwipstack;
#endif
// jip
@@ -366,12 +368,7 @@ namespace ZeroTier {
void closeConnection(PhySocket *sock);
std::vector<Connection*> _Connections;
std::map<uint64_t, std::pair<PhySocket*, void*> > jobmap;
pid_t rpcCounter;
netif interface;
netif interface6;
Thread _thread;
std::string _dev; // path to Unix domain socket

4
src/wrappers/swift/ztsdk.swift
View File

@@ -137,7 +137,7 @@ class ZTSDK : NSObject
while(true) { // politely wait until an address is provided. simulates a blocking call
var addrbuf = [Int8](count: 16, repeatedValue: 0)
self.get_ipv4_address(nwid!, &addrbuf)
var addr_str:String = String.fromCString(addrbuf)!
let addr_str:String = String.fromCString(addrbuf)!
if(addr_str != "-1.-1.-1.-1/-1") {
return zt_connect(Int32(fd), addr.to_sockaddr_in(), UInt32(addr.len()));
}
@@ -150,7 +150,7 @@ class ZTSDK : NSObject
while(true) { // politely wait until an address is provided. simulates a blocking call
var addrbuf = [Int8](count: 16, repeatedValue: 0)
self.get_ipv4_address(nwid!, &addrbuf)
var addr_str:String = String.fromCString(addrbuf)!
let addr_str:String = String.fromCString(addrbuf)!
if(addr_str != "-1.-1.-1.-1/-1") {
return zt_bind(Int32(fd), addr.to_sockaddr_in(), UInt32(addr.len()));
}