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Update C++, Objective-C and Swift examples

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This commit is contained in:
Joseph Henry
2020-05-28 18:32:39 -07:00
parent be9af71238
commit f0d6330735
8 changed files with 698 additions and 394 deletions
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88
examples/cpp/server.cpp
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@@ -9,10 +9,19 @@
#include "ZeroTierSockets.h"
bool nodeReady = false;
bool networkReady = false;
struct Node
{
Node() : online(false), joinedAtLeastOneNetwork(false), id(0) {}
bool online;
bool joinedAtLeastOneNetwork;
uint64_t id;
// etc
} myNode;
// Example callbacks
/* Callback handler, you should return control from this function as quickly as you can
to ensure timely receipt of future events. You should not call libzt API functions from
this function unless it's something trivial like zts_inet_ntop() or similar that has
no state-change implications. */
void myZeroTierEventCallback(void *msgPtr)
{
struct zts_callback_msg *msg = (struct zts_callback_msg *)msgPtr;
@@ -20,11 +29,12 @@ void myZeroTierEventCallback(void *msgPtr)
// Node events
if (msg->eventCode == ZTS_EVENT_NODE_ONLINE) {
printf("ZTS_EVENT_NODE_ONLINE --- This node's ID is %llx\n", msg->node->address);
nodeReady = true;
myNode.id = msg->node->address;
myNode.online = true;
}
if (msg->eventCode == ZTS_EVENT_NODE_OFFLINE) {
printf("ZTS_EVENT_NODE_OFFLINE --- Check your physical Internet connection, router, firewall, etc. What ports are you blocking?\n");
nodeReady = false;
myNode.online = false;
}
if (msg->eventCode == ZTS_EVENT_NODE_NORMAL_TERMINATION) {
printf("ZTS_EVENT_NODE_NORMAL_TERMINATION\n");
@@ -37,7 +47,7 @@ void myZeroTierEventCallback(void *msgPtr)
}
if (msg->eventCode == ZTS_EVENT_NETWORK_REQ_CONFIG) {
printf("ZTS_EVENT_NETWORK_REQ_CONFIG --- Requesting config for network %llx, please wait a few seconds...\n", msg->network->nwid);
}
}
if (msg->eventCode == ZTS_EVENT_NETWORK_ACCESS_DENIED) {
printf("ZTS_EVENT_NETWORK_ACCESS_DENIED --- Access to virtual network %llx has been denied. Did you authorize the node yet?\n",
msg->network->nwid);
@@ -45,12 +55,12 @@ void myZeroTierEventCallback(void *msgPtr)
if (msg->eventCode == ZTS_EVENT_NETWORK_READY_IP4) {
printf("ZTS_EVENT_NETWORK_READY_IP4 --- Network config received. IPv4 traffic can now be sent over network %llx\n",
msg->network->nwid);
networkReady = true;
myNode.joinedAtLeastOneNetwork = true;
}
if (msg->eventCode == ZTS_EVENT_NETWORK_READY_IP6) {
printf("ZTS_EVENT_NETWORK_READY_IP6 --- Network config received. IPv6 traffic can now be sent over network %llx\n",
msg->network->nwid);
networkReady = true;
myNode.joinedAtLeastOneNetwork = true;
}
if (msg->eventCode == ZTS_EVENT_NETWORK_DOWN) {
printf("ZTS_EVENT_NETWORK_DOWN --- %llx\n", msg->network->nwid);
@@ -61,38 +71,52 @@ void myZeroTierEventCallback(void *msgPtr)
char ipstr[ZTS_INET_ADDRSTRLEN];
struct zts_sockaddr_in *in4 = (struct zts_sockaddr_in*)&(msg->addr->addr);
zts_inet_ntop(ZTS_AF_INET, &(in4->sin_addr), ipstr, ZTS_INET_ADDRSTRLEN);
printf("ZTS_EVENT_ADDR_NEW_IP4 --- This node's virtual address on network %llx is %s\n",
printf("ZTS_EVENT_ADDR_NEW_IP4 --- This node's virtual address on network %llx is %s\n",
msg->addr->nwid, ipstr);
}
if (msg->eventCode == ZTS_EVENT_ADDR_ADDED_IP6) {
char ipstr[ZTS_INET6_ADDRSTRLEN];
struct zts_sockaddr_in6 *in6 = (struct zts_sockaddr_in6*)&(msg->addr->addr);
zts_inet_ntop(ZTS_AF_INET6, &(in6->sin6_addr), ipstr, ZTS_INET6_ADDRSTRLEN);
printf("ZTS_EVENT_ADDR_NEW_IP6 --- This node's virtual address on network %llx is %s\n",
printf("ZTS_EVENT_ADDR_NEW_IP6 --- This node's virtual address on network %llx is %s\n",
msg->addr->nwid, ipstr);
}
if (msg->eventCode == ZTS_EVENT_ADDR_REMOVED_IP4) {
char ipstr[ZTS_INET_ADDRSTRLEN];
struct zts_sockaddr_in *in4 = (struct zts_sockaddr_in*)&(msg->addr->addr);
zts_inet_ntop(ZTS_AF_INET, &(in4->sin_addr), ipstr, ZTS_INET_ADDRSTRLEN);
printf("ZTS_EVENT_ADDR_REMOVED_IP4 --- The virtual address %s for this node on network %llx has been removed.\n",
printf("ZTS_EVENT_ADDR_REMOVED_IP4 --- The virtual address %s for this node on network %llx has been removed.\n",
ipstr, msg->addr->nwid);
}
if (msg->eventCode == ZTS_EVENT_ADDR_REMOVED_IP6) {
char ipstr[ZTS_INET6_ADDRSTRLEN];
struct zts_sockaddr_in6 *in6 = (struct zts_sockaddr_in6*)&(msg->addr->addr);
zts_inet_ntop(ZTS_AF_INET6, &(in6->sin6_addr), ipstr, ZTS_INET6_ADDRSTRLEN);
printf("ZTS_EVENT_ADDR_REMOVED_IP6 --- The virtual address %s for this node on network %llx has been removed.\n",
printf("ZTS_EVENT_ADDR_REMOVED_IP6 --- The virtual address %s for this node on network %llx has been removed.\n",
ipstr, msg->addr->nwid);
}
// Peer events
if (msg->eventCode == ZTS_EVENT_PEER_DIRECT) {
printf("ZTS_EVENT_PEER_DIRECT --- node=%llx\n", msg->peer->address);
// A direct path is known for nodeId
}
if (msg->eventCode == ZTS_EVENT_PEER_RELAY) {
printf("ZTS_EVENT_PEER_RELAY --- node=%llx\n", msg->peer->address);
// No direct path is known for nodeId
if (msg->peer) {
if (msg->peer->role == ZTS_PEER_ROLE_PLANET) {
/* Safe to ignore, these are our roots. They orchestrate the P2P connection.
You might also see other unknown peers, these are our network controllers. */
return;
}
if (msg->eventCode == ZTS_EVENT_PEER_DIRECT) {
printf("ZTS_EVENT_PEER_DIRECT --- A direct path is known for node=%llx\n",
msg->peer->address);
}
if (msg->eventCode == ZTS_EVENT_PEER_RELAY) {
printf("ZTS_EVENT_PEER_RELAY --- No direct path to node=%llx\n", msg->peer->address);
}
if (msg->eventCode == ZTS_EVENT_PEER_PATH_DISCOVERED) {
printf("ZTS_EVENT_PEER_PATH_DISCOVERED --- A new direct path was discovered for node=%llx\n",
msg->peer->address);
}
if (msg->eventCode == ZTS_EVENT_PEER_PATH_DEAD) {
printf("ZTS_EVENT_PEER_PATH_DEAD --- A direct path has died for node=%llx\n",
msg->peer->address);
}
}
}
@@ -104,7 +128,7 @@ void myZeroTierEventCallback(void *msgPtr)
* the location given in the first argument to zts_start(path, ...). If you accidentally
* duplicate the identity files and use them simultaneously in a different node instance
* you will experience undefined behavior and it is likely nothing will work.
*
*
* - You must authorize the node ID provided by the ZTS_EVENT_NODE_ONLINE callback to join
* your network, otherwise nothing will happen. This can be done manually or via
* our web API: https://my.zerotier.com/help/api
@@ -143,12 +167,12 @@ void myZeroTierEventCallback(void *msgPtr)
* Category 1: Control functions (zts_start, zts_join, zts_get_peer_status, etc). Errors
* returned by these functions can be any of the following:
*
* ZTS_ERR_OK 0 // No error
* ZTS_ERR_SOCKET -1 // Socket error, see zts_errno
* ZTS_ERR_SERVICE -2 // You probably did something at the wrong time
* ZTS_ERR_ARG -3 // Invalid argument
* ZTS_ERR_NO_RESULT -4 // No result (not necessarily an error)
* ZTS_ERR_GENERAL -5 // Consider filing a bug report
* ZTS_ERR_OK // No error
* ZTS_ERR_SOCKET // Socket error, see zts_errno
* ZTS_ERR_SERVICE // You probably did something at the wrong time
* ZTS_ERR_ARG // Invalid argument
* ZTS_ERR_NO_RESULT // No result (not necessarily an error)
* ZTS_ERR_GENERAL // Consider filing a bug report
*
* Category 2: Sockets (zts_socket, zts_bind, zts_connect, zts_listen, etc).
* Errors returned by these functions can be the same as the above. With
@@ -166,7 +190,7 @@ void myZeroTierEventCallback(void *msgPtr)
* are a few guidelines:
*
* If you are calling a zts_* function, use the appropriate ZTS_* constants:
*
*
* zts_socket(ZTS_AF_INET6, ZTS_SOCK_DGRAM, 0); (CORRECT)
* zts_socket(AF_INET6, SOCK_DGRAM, 0); (INCORRECT)
*
@@ -178,7 +202,7 @@ void myZeroTierEventCallback(void *msgPtr)
*
*/
int main(int argc, char **argv)
int main(int argc, char **argv)
{
if (argc != 5) {
printf("\nlibzt example server\n");
@@ -188,7 +212,7 @@ int main(int argc, char **argv)
uint64_t nwid = strtoull(argv[2],NULL,16); // Network ID to join
int serverBindPort = atoi(argv[3]); // Port the application should bind to
int ztServicePort = atoi(argv[4]); // Port ZT uses to send encrypted UDP packets to peers (try something like 9994)
struct zts_sockaddr_in in4, acc_in4;
in4.sin_port = zts_htons(serverBindPort);
#if defined(_WIN32)
@@ -208,7 +232,7 @@ int main(int argc, char **argv)
exit(1);
}
printf("Waiting for node to come online...\n");
while (!nodeReady) { zts_delay_ms(50); }
while (!myNode.online) { zts_delay_ms(50); }
printf("This node's identity is stored in %s\n", argv[1]);
if((err = zts_join(nwid)) != ZTS_ERR_OK) {
@@ -217,7 +241,7 @@ int main(int argc, char **argv)
}
printf("Joining network %llx\n", nwid);
printf("Don't forget to authorize this device in my.zerotier.com or the web API!\n");
while (!networkReady) { zts_delay_ms(50); }
while (!myNode.joinedAtLeastOneNetwork) { zts_delay_ms(50); }
// Socket-like API example
@@ -237,7 +261,7 @@ int main(int argc, char **argv)
printf("Error placing socket in LISTENING state (fd=%d, ret=%d, zts_errno=%d). Exiting.\n", fd, err, zts_errno);
exit(1);
}
int bytes=0;
char recvBuf[128];
memset(recvBuf, 0, sizeof(recvBuf));