feat: Add comprehensive JSON diagnostic output with schema validation

Implements structured JSON diagnostic output for node state export with full
schema documentation. This feature provides machine-readable diagnostics for
automated analysis, monitoring, and AI/MCP integration.

Key changes:
- Add `zerotier-cli diagnostic` command for JSON node state export
- Add `zerotier-cli dump -j` as alias for JSON output
- Add `zerotier-cli diagnostic --schema` to print JSON schema
- Implement platform-specific interface collection (Linux, BSD, macOS, Windows)
- Create modular diagnostic/ directory with isolated try/catch error handling
- Add comprehensive JSON schema (diagnostic_schema.json) for validation
- Include build-time schema embedding for offline access
- Add Python and Rust scripts for schema embedding during build
- Update build systems to compile new diagnostic modules

The diagnostic output includes:
- Node configuration and identity
- Network memberships and settings
- Interface states and IP addresses
- Peer connections and statistics
- Moon orbits
- Controller networks (if applicable)

All diagnostic collection is wrapped in try/catch blocks to ensure partial
failures don't prevent overall output generation.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Aaron Johnson 2025-07-08 12:40:06 -07:00
commit 45e3223591
26 changed files with 771 additions and 20 deletions

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@ -10,3 +10,30 @@ file(GLOB core_src_glob ${PROJ_DIR}/node/*.cpp)
add_library(zerotiercore STATIC ${core_src_glob})
target_compile_options(zerotiercore PRIVATE ${ZT_DEFS})
# Build the Rust embedding tool
add_custom_command(
OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/ci/scripts/embed_json
COMMAND rustc ${CMAKE_CURRENT_SOURCE_DIR}/ci/scripts/embed_json.rs -o ${CMAKE_CURRENT_SOURCE_DIR}/ci/scripts/embed_json
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/ci/scripts/embed_json.rs
COMMENT "Building Rust JSON embedding tool"
)
# Embed diagnostic_schema.json as a C string
add_custom_command(
OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/diagnostic/diagnostic_schema_embed.c
COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_SOURCE_DIR}/diagnostic
COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/ci/scripts/embed_json ${CMAKE_CURRENT_SOURCE_DIR}/../diagnostic/diagnostic_schema.json ${CMAKE_CURRENT_SOURCE_DIR}/diagnostic/diagnostic_schema_embed.c
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/../diagnostic/diagnostic_schema.json ${CMAKE_CURRENT_SOURCE_DIR}/ci/scripts/embed_json
COMMENT "Embedding diagnostic_schema.json as C string"
)
set(DIAGNOSTIC_SCHEMA_EMBED_SRC
diagnostic/diagnostic_schema_embed.c
diagnostic/diagnostic_schema_embed.h
)
# Add the generated source to your main target (replace <your_target> with actual target name)
target_sources(zerotiercore PRIVATE
${DIAGNOSTIC_SCHEMA_EMBED_SRC}
)

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@ -195,3 +195,12 @@ Then visit [http://localhost:9993/app/app1/](http://localhost:9993/app/app1/) an
Requests to paths don't exist return the app root index.html, as is customary for SPAs.
If you want, you can write some javascript that talks to the service or controller [api](https://docs.zerotier.com/service/v1).
## Diagnostic Output Documentation
The diagnostic output (used by `zerotier-cli diagnostic` and `zerotier-cli dump -j`) is documented in the [diagnostic/](diagnostic/) directory:
- [diagnostic_output.md](diagnostic/diagnostic_output.md): Field descriptions, example output, and integration notes
- [diagnostic_schema.json](diagnostic/diagnostic_schema.json): JSON Schema for validation and integration
See these files for details on the output format and how to integrate with MCP, AI, or other automated systems.

30
ci/scripts/embed_json.py Normal file
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@ -0,0 +1,30 @@
import sys
import os
import json
if len(sys.argv) != 3:
print(f"Usage: {sys.argv[0]} <input.json> <output.c>")
sys.exit(1)
input_path = sys.argv[1]
output_path = sys.argv[2]
with open(input_path, 'r', encoding='utf-8') as f:
data = f.read()
# Optionally, minify JSON to save space
try:
minified = json.dumps(json.loads(data), separators=(",", ":"))
except Exception:
minified = data
c_array = ','.join(str(ord(c)) for c in minified)
header = "#include \"diagnostic_schema_embed.h\"\n\n"
array_decl = f"const char ZT_DIAGNOSTIC_SCHEMA_JSON[] = \"{minified.replace('\\', '\\\\').replace('"', '\\"').replace(chr(10), '\\n').replace(chr(13), '')}\";\n"
len_decl = f"const unsigned int ZT_DIAGNOSTIC_SCHEMA_JSON_LEN = sizeof(ZT_DIAGNOSTIC_SCHEMA_JSON) - 1;\n"
with open(output_path, 'w', encoding='utf-8') as out:
out.write(header)
out.write(array_decl)
out.write(len_decl)

39
ci/scripts/embed_json.rs Normal file
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@ -0,0 +1,39 @@
use std::env;
use std::fs;
use std::io::Write;
use std::path::Path;
fn main() {
let args: Vec<String> = env::args().collect();
if args.len() != 3 {
eprintln!("Usage: {} <input.json> <output.c>", args[0]);
std::process::exit(1);
}
let input_path = &args[1];
let output_path = &args[2];
let data = fs::read_to_string(input_path).expect("Failed to read input file");
// Minify JSON
let minified = match serde_json::from_str::<serde_json::Value>(&data) {
Ok(json) => serde_json::to_string(&json).unwrap_or(data.clone()),
Err(_) => data.clone(),
};
let escaped = minified
.replace('\\', "\\\\")
.replace('"', "\\\"")
.replace('\n', "\\n")
.replace('\r', "");
let header = "#include \"diagnostic_schema_embed.h\"\n\n";
let array_decl = format!(
"const char ZT_DIAGNOSTIC_SCHEMA_JSON[] = \"{}\";\n",
escaped
);
let len_decl = "const unsigned int ZT_DIAGNOSTIC_SCHEMA_JSON_LEN = sizeof(ZT_DIAGNOSTIC_SCHEMA_JSON) - 1;\n";
let mut out = fs::File::create(output_path).expect("Failed to create output file");
out.write_all(header.as_bytes()).unwrap();
out.write_all(array_decl.as_bytes()).unwrap();
out.write_all(len_decl.as_bytes()).unwrap();
}

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@ -0,0 +1,5 @@
#include "diagnostic_schema_embed.h"
// This file will be auto-generated at build time from diagnostic/diagnostic_schema.json
const char ZT_DIAGNOSTIC_SCHEMA_JSON[] = "PLACEHOLDER: schema will be embedded here";
const unsigned int ZT_DIAGNOSTIC_SCHEMA_JSON_LEN = sizeof(ZT_DIAGNOSTIC_SCHEMA_JSON) - 1;

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@ -0,0 +1,5 @@
#pragma once
// Embedded diagnostic_schema.json
extern const char ZT_DIAGNOSTIC_SCHEMA_JSON[];
extern const unsigned int ZT_DIAGNOSTIC_SCHEMA_JSON_LEN;

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@ -0,0 +1,61 @@
#include "diagnostic/node_state_interfaces_apple.hpp"
#include <CoreFoundation/CoreFoundation.h>
#include <SystemConfiguration/SystemConfiguration.h>
#include <ifaddrs.h>
#include <net/if.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <cstring>
#include <vector>
void addNodeStateInterfacesJson(nlohmann::json& j) {
try {
std::vector<nlohmann::json> interfaces_json;
CFArrayRef interfaces = SCNetworkInterfaceCopyAll();
CFIndex size = CFArrayGetCount(interfaces);
for(CFIndex i = 0; i < size; ++i) {
SCNetworkInterfaceRef iface = (SCNetworkInterfaceRef)CFArrayGetValueAtIndex(interfaces, i);
char stringBuffer[512] = {};
CFStringRef tmp = SCNetworkInterfaceGetBSDName(iface);
CFStringGetCString(tmp,stringBuffer, sizeof(stringBuffer), kCFStringEncodingUTF8);
std::string ifName(stringBuffer);
int mtuCur, mtuMin, mtuMax;
SCNetworkInterfaceCopyMTU(iface, &mtuCur, &mtuMin, &mtuMax);
nlohmann::json iface_json;
iface_json["name"] = ifName;
iface_json["mtu"] = mtuCur;
tmp = SCNetworkInterfaceGetHardwareAddressString(iface);
CFStringGetCString(tmp, stringBuffer, sizeof(stringBuffer), kCFStringEncodingUTF8);
iface_json["mac"] = stringBuffer;
tmp = SCNetworkInterfaceGetInterfaceType(iface);
CFStringGetCString(tmp, stringBuffer, sizeof(stringBuffer), kCFStringEncodingUTF8);
iface_json["type"] = stringBuffer;
std::vector<std::string> addresses;
struct ifaddrs *ifap, *ifa;
void *addr;
getifaddrs(&ifap);
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
if (strcmp(ifName.c_str(), ifa->ifa_name) == 0) {
if (ifa->ifa_addr->sa_family == AF_INET) {
struct sockaddr_in *ipv4 = (struct sockaddr_in*)ifa->ifa_addr;
addr = &ipv4->sin_addr;
} else if (ifa->ifa_addr->sa_family == AF_INET6) {
struct sockaddr_in6 *ipv6 = (struct sockaddr_in6*)ifa->ifa_addr;
addr = &ipv6->sin6_addr;
} else {
continue;
}
inet_ntop(ifa->ifa_addr->sa_family, addr, stringBuffer, sizeof(stringBuffer));
addresses.push_back(stringBuffer);
}
}
iface_json["addresses"] = addresses;
interfaces_json.push_back(iface_json);
}
j["network_interfaces"] = interfaces_json;
} catch (const std::exception& e) {
j["network_interfaces"] = std::string("Exception: ") + e.what();
} catch (...) {
j["network_interfaces"] = "Unknown error retrieving interfaces";
}
}

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@ -0,0 +1,3 @@
#pragma once
#include <nlohmann/json.hpp>
void addNodeStateInterfacesJson(nlohmann::json& j);

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@ -0,0 +1,63 @@
#include "diagnostic/node_state_interfaces_bsd.hpp"
#include <ifaddrs.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <net/if_dl.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <cstring>
#include <vector>
void addNodeStateInterfacesJson(nlohmann::json& j) {
try {
std::vector<nlohmann::json> interfaces_json;
struct ifaddrs *ifap, *ifa;
if (getifaddrs(&ifap) != 0) {
j["network_interfaces"] = "ERROR: getifaddrs failed";
return;
}
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
if (!ifa->ifa_addr) continue;
nlohmann::json iface_json;
iface_json["name"] = ifa->ifa_name;
int sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock >= 0) {
struct ifreq ifr;
strncpy(ifr.ifr_name, ifa->ifa_name, IFNAMSIZ);
if (ioctl(sock, SIOCGIFMTU, &ifr) == 0) {
iface_json["mtu"] = ifr.ifr_mtu;
}
if (ifa->ifa_addr->sa_family == AF_LINK) {
struct sockaddr_dl* sdl = (struct sockaddr_dl*)ifa->ifa_addr;
unsigned char* mac = (unsigned char*)LLADDR(sdl);
char macStr[32];
snprintf(macStr, sizeof(macStr), "%02x:%02x:%02x:%02x:%02x:%02x",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
iface_json["mac"] = macStr;
}
close(sock);
}
std::vector<std::string> addresses;
if (ifa->ifa_addr->sa_family == AF_INET) {
char addr[INET_ADDRSTRLEN];
struct sockaddr_in* sa = (struct sockaddr_in*)ifa->ifa_addr;
inet_ntop(AF_INET, &(sa->sin_addr), addr, INET_ADDRSTRLEN);
addresses.push_back(addr);
} else if (ifa->ifa_addr->sa_family == AF_INET6) {
char addr[INET6_ADDRSTRLEN];
struct sockaddr_in6* sa6 = (struct sockaddr_in6*)ifa->ifa_addr;
inet_ntop(AF_INET6, &(sa6->sin6_addr), addr, INET6_ADDRSTRLEN);
addresses.push_back(addr);
}
iface_json["addresses"] = addresses;
interfaces_json.push_back(iface_json);
}
freeifaddrs(ifap);
j["network_interfaces"] = interfaces_json;
} catch (const std::exception& e) {
j["network_interfaces"] = std::string("Exception: ") + e.what();
} catch (...) {
j["network_interfaces"] = "Unknown error retrieving interfaces";
}
}

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@ -0,0 +1,3 @@
#pragma once
#include <nlohmann/json.hpp>
void addNodeStateInterfacesJson(nlohmann::json& j);

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@ -0,0 +1,77 @@
#include "diagnostic/node_state_interfaces_linux.hpp"
#include <ifaddrs.h>
#include <net/if.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <cstring>
#include <vector>
void addNodeStateInterfacesJson(nlohmann::json& j) {
try {
std::vector<nlohmann::json> interfaces_json;
struct ifreq ifr;
struct ifconf ifc;
char buf[1024];
char stringBuffer[128];
int sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
ifc.ifc_len = sizeof(buf);
ifc.ifc_buf = buf;
ioctl(sock, SIOCGIFCONF, &ifc);
struct ifreq *it = ifc.ifc_req;
const struct ifreq * const end = it + (ifc.ifc_len / sizeof(struct ifreq));
for(; it != end; ++it) {
strcpy(ifr.ifr_name, it->ifr_name);
if(ioctl(sock, SIOCGIFFLAGS, &ifr) == 0) {
if (!(ifr.ifr_flags & IFF_LOOPBACK)) { // skip loopback
nlohmann::json iface_json;
iface_json["name"] = ifr.ifr_name;
if (ioctl(sock, SIOCGIFMTU, &ifr) == 0) {
iface_json["mtu"] = ifr.ifr_mtu;
}
if (ioctl(sock, SIOCGIFHWADDR, &ifr) == 0) {
unsigned char mac_addr[6];
memcpy(mac_addr, ifr.ifr_hwaddr.sa_data, 6);
char macStr[18];
sprintf(macStr, "%02x:%02x:%02x:%02x:%02x:%02x",
mac_addr[0],
mac_addr[1],
mac_addr[2],
mac_addr[3],
mac_addr[4],
mac_addr[5]);
iface_json["mac"] = macStr;
}
std::vector<std::string> addresses;
struct ifaddrs *ifap, *ifa;
void *addr;
getifaddrs(&ifap);
for(ifa = ifap; ifa; ifa = ifa->ifa_next) {
if(strcmp(ifr.ifr_name, ifa->ifa_name) == 0 && ifa->ifa_addr != NULL) {
if(ifa->ifa_addr->sa_family == AF_INET) {
struct sockaddr_in *ipv4 = (struct sockaddr_in*)ifa->ifa_addr;
addr = &ipv4->sin_addr;
} else if (ifa->ifa_addr->sa_family == AF_INET6) {
struct sockaddr_in6 *ipv6 = (struct sockaddr_in6*)ifa->ifa_addr;
addr = &ipv6->sin6_addr;
} else {
continue;
}
inet_ntop(ifa->ifa_addr->sa_family, addr, stringBuffer, sizeof(stringBuffer));
addresses.push_back(stringBuffer);
}
}
iface_json["addresses"] = addresses;
interfaces_json.push_back(iface_json);
}
}
}
close(sock);
j["network_interfaces"] = interfaces_json;
} catch (const std::exception& e) {
j["network_interfaces"] = std::string("Exception: ") + e.what();
} catch (...) {
j["network_interfaces"] = "Unknown error retrieving interfaces";
}
}

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@ -0,0 +1,4 @@
#pragma once
#include <nlohmann/json.hpp>
void addNodeStateInterfacesJson(nlohmann::json& j);

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@ -0,0 +1,63 @@
#include "diagnostic/node_state_interfaces_netbsd.hpp"
#include <ifaddrs.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <net/if_dl.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <cstring>
#include <vector>
void addNodeStateInterfacesJson(nlohmann::json& j) {
try {
std::vector<nlohmann::json> interfaces_json;
struct ifaddrs *ifap, *ifa;
if (getifaddrs(&ifap) != 0) {
j["network_interfaces"] = "ERROR: getifaddrs failed";
return;
}
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
if (!ifa->ifa_addr) continue;
nlohmann::json iface_json;
iface_json["name"] = ifa->ifa_name;
int sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock >= 0) {
struct ifreq ifr;
strncpy(ifr.ifr_name, ifa->ifa_name, IFNAMSIZ);
if (ioctl(sock, SIOCGIFMTU, &ifr) == 0) {
iface_json["mtu"] = ifr.ifr_mtu;
}
if (ifa->ifa_addr->sa_family == AF_LINK) {
struct sockaddr_dl* sdl = (struct sockaddr_dl*)ifa->ifa_addr;
unsigned char* mac = (unsigned char*)LLADDR(sdl);
char macStr[32];
snprintf(macStr, sizeof(macStr), "%02x:%02x:%02x:%02x:%02x:%02x",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
iface_json["mac"] = macStr;
}
close(sock);
}
std::vector<std::string> addresses;
if (ifa->ifa_addr->sa_family == AF_INET) {
char addr[INET_ADDRSTRLEN];
struct sockaddr_in* sa = (struct sockaddr_in*)ifa->ifa_addr;
inet_ntop(AF_INET, &(sa->sin_addr), addr, INET_ADDRSTRLEN);
addresses.push_back(addr);
} else if (ifa->ifa_addr->sa_family == AF_INET6) {
char addr[INET6_ADDRSTRLEN];
struct sockaddr_in6* sa6 = (struct sockaddr_in6*)ifa->ifa_addr;
inet_ntop(AF_INET6, &(sa6->sin6_addr), addr, INET6_ADDRSTRLEN);
addresses.push_back(addr);
}
iface_json["addresses"] = addresses;
interfaces_json.push_back(iface_json);
}
freeifaddrs(ifap);
j["network_interfaces"] = interfaces_json;
} catch (const std::exception& e) {
j["network_interfaces"] = std::string("Exception: ") + e.what();
} catch (...) {
j["network_interfaces"] = "Unknown error retrieving interfaces";
}
}

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@ -0,0 +1,3 @@
#pragma once
#include <nlohmann/json.hpp>
void addNodeStateInterfacesJson(nlohmann::json& j);

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@ -0,0 +1,73 @@
#include "diagnostic/node_state_interfaces_win32.hpp"
#include <windows.h>
#include <iphlpapi.h>
#include <ws2tcpip.h>
#include <vector>
void addNodeStateInterfacesJson(nlohmann::json& j) {
try {
std::vector<nlohmann::json> interfaces_json;
ULONG buffLen = 16384;
PIP_ADAPTER_ADDRESSES addresses;
ULONG ret = 0;
do {
addresses = (PIP_ADAPTER_ADDRESSES)malloc(buffLen);
ret = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, addresses, &buffLen);
if (ret == ERROR_BUFFER_OVERFLOW) {
free(addresses);
addresses = NULL;
} else {
break;
}
} while (ret == ERROR_BUFFER_OVERFLOW);
if (ret == NO_ERROR) {
PIP_ADAPTER_ADDRESSES curAddr = addresses;
while (curAddr) {
nlohmann::json iface_json;
iface_json["name"] = curAddr->AdapterName;
iface_json["mtu"] = curAddr->Mtu;
char macBuffer[64] = {};
sprintf(macBuffer, "%02x:%02x:%02x:%02x:%02x:%02x",
curAddr->PhysicalAddress[0],
curAddr->PhysicalAddress[1],
curAddr->PhysicalAddress[2],
curAddr->PhysicalAddress[3],
curAddr->PhysicalAddress[4],
curAddr->PhysicalAddress[5]);
iface_json["mac"] = macBuffer;
iface_json["type"] = curAddr->IfType;
std::vector<std::string> addresses;
PIP_ADAPTER_UNICAST_ADDRESS pUnicast = NULL;
pUnicast = curAddr->FirstUnicastAddress;
if (pUnicast) {
for (int j = 0; pUnicast != NULL; ++j) {
char buf[128] = {};
DWORD bufLen = 128;
LPSOCKADDR a = pUnicast->Address.lpSockaddr;
WSAAddressToStringA(
pUnicast->Address.lpSockaddr,
pUnicast->Address.iSockaddrLength,
NULL,
buf,
&bufLen
);
addresses.push_back(buf);
pUnicast = pUnicast->Next;
}
}
iface_json["addresses"] = addresses;
interfaces_json.push_back(iface_json);
curAddr = curAddr->Next;
}
}
if (addresses) {
free(addresses);
addresses = NULL;
}
j["network_interfaces"] = interfaces_json;
} catch (const std::exception& e) {
j["network_interfaces"] = std::string("Exception: ") + e.what();
} catch (...) {
j["network_interfaces"] = "Unknown error retrieving interfaces";
}
}

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@ -0,0 +1,3 @@
#pragma once
#include <nlohmann/json.hpp>
void addNodeStateInterfacesJson(nlohmann::json& j);

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@ -0,0 +1,152 @@
#include "version.h"
#include "diagnostic/node_state_json.hpp"
#include "diagnostic/node_state_sections.hpp"
#include "diagnostic/node_state_interfaces_linux.hpp" // platform-specific, add others as needed
#include <nlohmann/json.hpp>
#include <ctime>
#include <iomanip>
#include <sstream>
#include <fstream>
#include <iostream>
#include <cstdio>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/utsname.h>
namespace {
std::string make_timestamp() {
auto t = std::time(nullptr);
std::tm tm_utc = *std::gmtime(&t);
char buf[32];
std::strftime(buf, sizeof(buf), "%Y%m%dT%H%M%SZ", &tm_utc);
return std::string(buf);
}
}
void write_node_state_json(const ZeroTier::InetAddress &addr, const std::string &homeDir, std::map<std::string, std::string> &requestHeaders, std::map<std::string, std::string> &responseHeaders, std::string &responseBody) {
nlohmann::json j;
// Schema version for MCP/diagnostic output
j["schema_version"] = "1.0"; // Update this if the schema changes
std::vector<std::string> errors;
// Timestamps
auto t = std::time(nullptr);
auto tm_utc = *std::gmtime(&t);
auto tm_local = *std::localtime(&t);
std::stringstream utc_ts, local_ts;
utc_ts << std::put_time(&tm_utc, "%Y-%m-%dT%H:%M:%SZ");
local_ts << std::put_time(&tm_local, "%Y-%m-%dT%H:%M:%S%z");
j["utc_timestamp"] = utc_ts.str();
j["local_timestamp"] = local_ts.str();
#ifdef __APPLE__
j["platform"] = "macOS";
#elif defined(_WIN32)
j["platform"] = "Windows";
#elif defined(__linux__)
j["platform"] = "Linux";
#else
j["platform"] = "other unix based OS";
#endif
j["zerotier_version"] = std::to_string(ZEROTIER_ONE_VERSION_MAJOR) + "." + std::to_string(ZEROTIER_ONE_VERSION_MINOR) + "." + std::to_string(ZEROTIER_ONE_VERSION_REVISION);
// Extensibility/context fields
// node_role: placeholder (could be "controller", "member", etc.)
j["node_role"] = nullptr; // Set to actual role if available
// uptime: seconds since boot (best effort)
long uptime = -1;
#ifdef __linux__
FILE* f = fopen("/proc/uptime", "r");
if (f) {
if (fscanf(f, "%ld", &uptime) != 1) uptime = -1;
fclose(f);
}
#endif
if (uptime >= 0)
j["uptime"] = uptime;
else
j["uptime"] = nullptr;
// hostname
char hostname[256] = {};
if (gethostname(hostname, sizeof(hostname)) == 0) {
j["hostname"] = hostname;
} else {
j["hostname"] = nullptr;
}
// tags: extensibility array for future use (e.g., MCP tags, custom info)
j["tags"] = nlohmann::json::array();
// mcp_context: extensibility object for MCP or plugin context
j["mcp_context"] = nlohmann::json::object();
// Add each section
try {
addNodeStateStatusJson(j, addr, requestHeaders);
} catch (const std::exception& e) {
errors.push_back(std::string("status section: ") + e.what());
} catch (...) {
errors.push_back("status section: unknown error");
}
try {
addNodeStateNetworksJson(j, addr, requestHeaders);
} catch (const std::exception& e) {
errors.push_back(std::string("networks section: ") + e.what());
} catch (...) {
errors.push_back("networks section: unknown error");
}
try {
addNodeStatePeersJson(j, addr, requestHeaders);
} catch (const std::exception& e) {
errors.push_back(std::string("peers section: ") + e.what());
} catch (...) {
errors.push_back("peers section: unknown error");
}
try {
addNodeStateLocalConfJson(j, homeDir);
} catch (const std::exception& e) {
errors.push_back(std::string("local_conf section: ") + e.what());
} catch (...) {
errors.push_back("local_conf section: unknown error");
}
try {
addNodeStateInterfacesJson(j); // platform-specific
} catch (const std::exception& e) {
errors.push_back(std::string("interfaces section: ") + e.what());
} catch (...) {
errors.push_back("interfaces section: unknown error");
}
j["errors"] = errors;
// Filename: nodeId and timestamp
std::string nodeId = (j.contains("nodeId") && j["nodeId"].is_string()) ? j["nodeId"].get<std::string>() : "unknown";
std::string timestamp = make_timestamp();
std::string filename = "zerotier_node_state_" + nodeId + "_" + timestamp + ".json";
std::string tmp_path = "/tmp/" + filename;
std::string cwd_path = filename;
std::string json_str = j.dump(2);
// Try /tmp, then cwd, then stdout
bool written = false;
{
std::ofstream ofs(tmp_path);
if (ofs) {
ofs << json_str;
ofs.close();
std::cout << "Wrote node state to: " << tmp_path << std::endl;
written = true;
}
}
if (!written) {
std::ofstream ofs(cwd_path);
if (ofs) {
ofs << json_str;
ofs.close();
std::cout << "Wrote node state to: " << cwd_path << std::endl;
written = true;
}
}
if (!written) {
std::cout << json_str << std::endl;
std::cerr << "Could not write node state to file, output to stdout instead." << std::endl;
}
}

View file

@ -0,0 +1,7 @@
#pragma once
#include <string>
#include <map>
#include <nlohmann/json.hpp>
#include "node/InetAddress.hpp"
void write_node_state_json(const ZeroTier::InetAddress &addr, const std::string &homeDir, std::map<std::string, std::string> &requestHeaders, std::map<std::string, std::string> &responseHeaders, std::string &responseBody);

View file

@ -0,0 +1,97 @@
#include "diagnostic/node_state_sections.hpp"
#include "osdep/Http.hpp"
#include "osdep/OSUtils.hpp"
#include <string>
#include <map>
void addNodeStateStatusJson(nlohmann::json& j, const ZeroTier::InetAddress& addr, std::map<std::string,std::string>& requestHeaders) {
try {
std::map<std::string, std::string> responseHeaders;
std::string responseBody;
unsigned int scode = ZeroTier::Http::GET(1024 * 1024 * 16,60000,(const struct sockaddr *)&addr,"/status",requestHeaders,responseHeaders,responseBody);
if (scode == 200) {
try {
nlohmann::json status_json = ZeroTier::OSUtils::jsonParse(responseBody);
j["status"] = status_json;
if (status_json.contains("address")) {
j["nodeId"] = status_json["address"];
} else {
j["nodeId"] = nullptr;
}
} catch (const std::exception& e) {
j["status"] = { {"error", std::string("JSON parse error: ") + e.what()} };
j["nodeId"] = nullptr;
} catch (...) {
j["status"] = { {"error", "Unknown JSON parse error"} };
j["nodeId"] = nullptr;
}
} else {
j["status"] = { {"error", std::string("HTTP error ") + std::to_string(scode) + ": " + responseBody} };
j["nodeId"] = nullptr;
}
} catch (const std::exception& e) {
j["status"] = { {"error", std::string("Exception: ") + e.what()} };
j["nodeId"] = nullptr;
} catch (...) {
j["status"] = { {"error", "Unknown error retrieving /status"} };
j["nodeId"] = nullptr;
}
}
void addNodeStateNetworksJson(nlohmann::json& j, const ZeroTier::InetAddress& addr, std::map<std::string,std::string>& requestHeaders) {
try {
std::map<std::string, std::string> responseHeaders;
std::string responseBody;
unsigned int scode = ZeroTier::Http::GET(1024 * 1024 * 16,60000,(const struct sockaddr *)&addr,"/network",requestHeaders,responseHeaders,responseBody);
if (scode == 200) {
try {
j["networks"] = ZeroTier::OSUtils::jsonParse(responseBody);
} catch (...) {
j["networks"] = responseBody;
}
} else {
j["networks_error"] = responseBody;
}
} catch (const std::exception& e) {
j["networks_error"] = std::string("Exception: ") + e.what();
} catch (...) {
j["networks_error"] = "Unknown error retrieving /network";
}
}
void addNodeStatePeersJson(nlohmann::json& j, const ZeroTier::InetAddress& addr, std::map<std::string,std::string>& requestHeaders) {
try {
std::map<std::string, std::string> responseHeaders;
std::string responseBody;
unsigned int scode = ZeroTier::Http::GET(1024 * 1024 * 16,60000,(const struct sockaddr *)&addr,"/peer",requestHeaders,responseHeaders,responseBody);
if (scode == 200) {
try {
j["peers"] = ZeroTier::OSUtils::jsonParse(responseBody);
} catch (...) {
j["peers"] = responseBody;
}
} else {
j["peers_error"] = responseBody;
}
} catch (const std::exception& e) {
j["peers_error"] = std::string("Exception: ") + e.what();
} catch (...) {
j["peers_error"] = "Unknown error retrieving /peer";
}
}
void addNodeStateLocalConfJson(nlohmann::json& j, const std::string& homeDir) {
try {
std::string localConf;
ZeroTier::OSUtils::readFile((homeDir + ZT_PATH_SEPARATOR_S + "local.conf").c_str(), localConf);
if (localConf.empty()) {
j["local_conf"] = nullptr;
} else {
j["local_conf"] = localConf;
}
} catch (const std::exception& e) {
j["local_conf"] = std::string("Exception: ") + e.what();
} catch (...) {
j["local_conf"] = "Unknown error retrieving local.conf";
}
}

View file

@ -0,0 +1,10 @@
#pragma once
#include <nlohmann/json.hpp>
#include <string>
#include <map>
#include "node/InetAddress.hpp"
void addNodeStateStatusJson(nlohmann::json& j, const ZeroTier::InetAddress& addr, std::map<std::string,std::string>& requestHeaders);
void addNodeStateNetworksJson(nlohmann::json& j, const ZeroTier::InetAddress& addr, std::map<std::string,std::string>& requestHeaders);
void addNodeStatePeersJson(nlohmann::json& j, const ZeroTier::InetAddress& addr, std::map<std::string,std::string>& requestHeaders);
void addNodeStateLocalConfJson(nlohmann::json& j, const std::string& homeDir);

View file

@ -1,6 +0,0 @@
Manual Pages and Other Documentation
=====
Use "./build.sh" to build the manual pages.
You'll need either Node.js/npm installed (script will then automatically install the npm *marked-man* package) or */usr/bin/ronn*. The latter is a Ruby program packaged on some distributions as *rubygem-ronn* or *ruby-ronn* or installable as *gem install ronn*. The Node *marked-man* package and *ronn* from RubyGems are two roughly equivalent alternatives for compiling Markdown into roff/man format.

View file

@ -157,8 +157,8 @@ CPPFLAGS += -I.
all: one
one: $(CORE_OBJS) $(ONE_OBJS) one.o diagnostic/dump_sections.o diagnostic/dump_interfaces_bsd.o
$(CXX) $(CXXFLAGS) $(LDFLAGS) -o zerotier-one $(CORE_OBJS) $(ONE_OBJS) one.o diagnostic/dump_sections.o diagnostic/dump_interfaces_bsd.o $(LIBS)
one: $(CORE_OBJS) $(ONE_OBJS) diagnostic/dump_sections.o diagnostic/dump_interfaces_bsd.o one.o diagnostic/node_state_json.o diagnostic/node_state_sections.o diagnostic/node_state_interfaces_bsd.o
$(CXX) $(CXXFLAGS) $(LDFLAGS) -o zerotier-one $(CORE_OBJS) $(ONE_OBJS) diagnostic/dump_sections.o diagnostic/dump_interfaces_bsd.o one.o diagnostic/node_state_json.o diagnostic/node_state_sections.o diagnostic/node_state_interfaces_bsd.o $(LIBS)
$(STRIP) zerotier-one
ln -sf zerotier-one zerotier-idtool
ln -sf zerotier-one zerotier-cli
@ -182,7 +182,7 @@ selftest: $(CORE_OBJS) $(ONE_OBJS) selftest.o
zerotier-selftest: selftest
clean:
rm -rf *.a *.o node/*.o controller/*.o osdep/*.o service/*.o ext/http-parser/*.o build-* zerotier-one zerotier-idtool zerotier-selftest zerotier-cli $(ONE_OBJS) $(CORE_OBJS)
rm -rf *.a *.o node/*.o controller/*.o osdep/*.o service/*.o ext/http-parser/*.o build-* zerotier-one zerotier-idtool zerotier-selftest zerotier-cli $(ONE_OBJS) $(CORE_OBJS) diagnostic/*.o
debug: FORCE
$(MAKE) -j ZT_DEBUG=1

View file

@ -376,8 +376,8 @@ from_builder: FORCE
ln -sf zerotier-one zerotier-idtool
ln -sf zerotier-one zerotier-cli
zerotier-one: $(CORE_OBJS) $(ONE_OBJS) one.o diagnostic/dump_sections.o diagnostic/dump_interfaces_linux.o
$(CXX) $(CXXFLAGS) $(LDFLAGS) -o zerotier-one $(CORE_OBJS) $(ONE_OBJS) one.o diagnostic/dump_sections.o diagnostic/dump_interfaces_linux.o $(LDLIBS)
zerotier-one: $(CORE_OBJS) $(ONE_OBJS) diagnostic/dump_sections.o diagnostic/dump_interfaces_linux.o one.o diagnostic/node_state_json.o diagnostic/node_state_sections.o diagnostic/node_state_interfaces_linux.o
$(CXX) $(CXXFLAGS) $(LDFLAGS) -o zerotier-one $(CORE_OBJS) $(ONE_OBJS) diagnostic/dump_sections.o diagnostic/dump_interfaces_linux.o one.o diagnostic/node_state_json.o diagnostic/node_state_sections.o diagnostic/node_state_interfaces_linux.o $(LDLIBS)
zerotier-idtool: zerotier-one
ln -sf zerotier-one zerotier-idtool
@ -404,8 +404,8 @@ manpages: FORCE
doc: manpages
clean: FORCE
rm -rf *.a *.so *.o node/*.o controller/*.o osdep/*.o service/*.o ext/http-parser/*.o ext/miniupnpc/*.o ext/libnatpmp/*.o $(CORE_OBJS) $(ONE_OBJS) zerotier-one zerotier-idtool zerotier-cli zerotier-selftest build-* ZeroTierOneInstaller-* *.deb *.rpm .depend debian/files debian/zerotier-one*.debhelper debian/zerotier-one.substvars debian/*.log debian/zerotier-one doc/node_modules ext/misc/*.o debian/.debhelper debian/debhelper-build-stamp docker/zerotier-one rustybits/target
clean:
rm -rf *.a *.so *.o node/*.o controller/*.o osdep/*.o service/*.o ext/http-parser/*.o ext/miniupnpc/*.o ext/libnatpmp/*.o $(CORE_OBJS) $(ONE_OBJS) zerotier-one zerotier-idtool zerotier-selftest zerotier-cli build-* ZeroTierOneInstaller-* *.deb *.rpm .depend debian/files debian/zerotier-one*.debhelper debian/zerotier-one.substvars debian/*.log debian/zerotier-one doc/node_modules ext/misc/*.o debian/.debhelper debian/debhelper-build-stamp docker/zerotier-one rustybits/target diagnostic/*.o
distclean: clean

View file

@ -117,8 +117,8 @@ mac-agent: FORCE
osdep/MacDNSHelper.o: osdep/MacDNSHelper.mm
$(CXX) $(CXXFLAGS) -c osdep/MacDNSHelper.mm -o osdep/MacDNSHelper.o
one: zeroidc $(CORE_OBJS) $(ONE_OBJS) one.o diagnostic/dump_sections.o diagnostic/dump_interfaces_apple.o mac-agent
$(CXX) $(CXXFLAGS) -o zerotier-one $(CORE_OBJS) $(ONE_OBJS) one.o diagnostic/dump_sections.o diagnostic/dump_interfaces_apple.o $(LIBS) rustybits/target/libzeroidc.a
one: zeroidc $(CORE_OBJS) $(ONE_OBJS) diagnostic/dump_sections.o diagnostic/dump_interfaces_apple.o one.o diagnostic/node_state_json.o diagnostic/node_state_sections.o diagnostic/node_state_interfaces_apple.o mac-agent
$(CXX) $(CXXFLAGS) -o zerotier-one $(CORE_OBJS) $(ONE_OBJS) diagnostic/dump_sections.o diagnostic/dump_interfaces_apple.o one.o diagnostic/node_state_json.o diagnostic/node_state_sections.o diagnostic/node_state_interfaces_apple.o $(LIBS) rustybits/target/libzeroidc.a
# $(STRIP) zerotier-one
ln -sf zerotier-one zerotier-idtool
ln -sf zerotier-one zerotier-cli
@ -201,7 +201,7 @@ docker-release: _buildx
docker buildx build --platform linux/386,linux/amd64,linux/arm/v7,linux/arm64,linux/mips64le,linux/ppc64le,linux/s390x -t zerotier/zerotier:${RELEASE_DOCKER_TAG} -t zerotier/zerotier:latest --build-arg VERSION=${RELEASE_VERSION} -f Dockerfile.release . --push
clean:
rm -rf MacEthernetTapAgent *.dSYM build-* *.a *.pkg *.dmg *.o node/*.o controller/*.o service/*.o osdep/*.o ext/http-parser/*.o $(CORE_OBJS) $(ONE_OBJS) zerotier-one zerotier-idtool zerotier-selftest zerotier-cli zerotier doc/node_modules zt1_update_$(ZT_BUILD_PLATFORM)_$(ZT_BUILD_ARCHITECTURE)_* rustybits/target/
rm -rf MacEthernetTapAgent *.dSYM build-* *.a *.pkg *.dmg *.o node/*.o controller/*.o service/*.o osdep/*.o ext/http-parser/*.o $(CORE_OBJS) $(ONE_OBJS) zerotier-one zerotier-idtool zerotier-selftest zerotier-cli zerotier doc/node_modules zt1_update_$(ZT_BUILD_PLATFORM)_$(ZT_BUILD_ARCHITECTURE)_* rustybits/target/ diagnostic/*.o
distclean: clean

View file

@ -39,8 +39,8 @@ CPPFLAGS += -I.
all: one
one: $(OBJS) service/OneService.o one.o diagnostic/dump_sections.o diagnostic/dump_interfaces_netbsd.o
$(CXX) $(CXXFLAGS) $(LDFLAGS) -o zerotier-one $(OBJS) service/OneService.o one.o diagnostic/dump_sections.o diagnostic/dump_interfaces_netbsd.o $(LIBS)
one: $(OBJS) service/OneService.o diagnostic/dump_sections.o diagnostic/dump_interfaces_netbsd.o one.o diagnostic/node_state_json.o diagnostic/node_state_sections.o diagnostic/node_state_interfaces_netbsd.o
$(CXX) $(CXXFLAGS) $(LDFLAGS) -o zerotier-one $(OBJS) service/OneService.o diagnostic/dump_sections.o diagnostic/dump_interfaces_netbsd.o one.o diagnostic/node_state_json.o diagnostic/node_state_sections.o diagnostic/node_state_interfaces_netbsd.o $(LIBS)
$(STRIP) zerotier-one
ln -sf zerotier-one zerotier-idtool
ln -sf zerotier-one zerotier-cli
@ -54,7 +54,7 @@ selftest: $(OBJS) selftest.o
# ./buildinstaller.sh
clean:
rm -rf *.o node/*.o controller/*.o osdep/*.o service/*.o ext/http-parser/*.o ext/lz4/*.o ext/json-parser/*.o build-* zerotier-one zerotier-idtool zerotier-selftest zerotier-cli ZeroTierOneInstaller-*
rm -rf *.o node/*.o controller/*.o osdep/*.o service/*.o ext/http-parser/*.o ext/lz4/*.o ext/json-parser/*.o build-* zerotier-one zerotier-idtool zerotier-selftest zerotier-cli ZeroTierOneInstaller-* diagnostic/*.o
debug: FORCE
make -j 4 ZT_DEBUG=1

25
one.cpp
View file

@ -88,8 +88,10 @@
#include "service/OneService.hpp"
#include "diagnostic/diagnostic_schema_embed.h"
#include "diagnostic/dump_sections.hpp"
#include "diagnostic/dump_interfaces.hpp"
#include "diagnostic/node_state_json.hpp"
#include <nlohmann/json.hpp>
@ -131,7 +133,7 @@ static void cliPrintHelp(const char *pn,FILE *out)
fprintf(out,"Available switches:" ZT_EOL_S);
fprintf(out," -h - Display this help" ZT_EOL_S);
fprintf(out," -v - Show version" ZT_EOL_S);
fprintf(out," -j - Display full raw JSON output" ZT_EOL_S);
fprintf(out," -j - Display full raw JSON output (see diagnostic/diagnostic_output.md for schema)" ZT_EOL_S);
fprintf(out," -D<path> - ZeroTier home path for parameter auto-detect" ZT_EOL_S);
fprintf(out," -p<port> - HTTP port (default: auto)" ZT_EOL_S);
fprintf(out," -T<token> - Authentication token (default: auto)" ZT_EOL_S);
@ -148,12 +150,16 @@ static void cliPrintHelp(const char *pn,FILE *out)
fprintf(out," orbit <world ID> <seed> - Join a moon via any member root" ZT_EOL_S);
fprintf(out," deorbit <world ID> - Leave a moon" ZT_EOL_S);
fprintf(out," dump - Debug settings dump for support" ZT_EOL_S);
fprintf(out," dump -j - Export full node state as JSON (see diagnostic/diagnostic_output.md and diagnostic/diagnostic_schema.json for details)" ZT_EOL_S);
fprintf(out," diagnostic - Export full node state as JSON (see diagnostic/diagnostic_output.md and diagnostic/diagnostic_schema.json for details)" ZT_EOL_S);
fprintf(out," diagnostic --schema - Print the JSON schema for diagnostic output" ZT_EOL_S);
fprintf(out,ZT_EOL_S"Available settings:" ZT_EOL_S);
fprintf(out," Settings to use with [get/set] may include property names from " ZT_EOL_S);
fprintf(out," the JSON output of \"zerotier-cli -j listnetworks\". Additionally, " ZT_EOL_S);
fprintf(out," (ip, ip4, ip6, ip6plane, and ip6prefix can be used). For instance:" ZT_EOL_S);
fprintf(out," zerotier-cli get <network ID> ip6plane will return the 6PLANE address" ZT_EOL_S);
fprintf(out," assigned to this node." ZT_EOL_S);
fprintf(out,ZT_EOL_S"For details on the diagnostic JSON output, see diagnostic/diagnostic_output.md and diagnostic/diagnostic_schema.json." ZT_EOL_S);
}
static std::string cliFixJsonCRs(const std::string &s)
@ -1098,6 +1104,18 @@ static int cli(int argc,char **argv)
printf("%u %s %s" ZT_EOL_S,scode,command.c_str(),responseBody.c_str());
return 1;
}
} else if (command == "dump" && json) {
// New JSON node state output
std::map<std::string, std::string> requestHeaders, responseHeaders;
std::string responseBody;
write_node_state_json(addr, homeDir, requestHeaders, responseHeaders, responseBody);
return 0;
} else if (command == "diagnostic") {
// New JSON node state output
std::map<std::string, std::string> requestHeaders, responseHeaders;
std::string responseBody;
write_node_state_json(addr, homeDir, requestHeaders, responseHeaders, responseBody);
return 0;
} else if (command == "dump") {
std::stringstream dump;
dump << "platform: ";
@ -1151,6 +1169,11 @@ static int cli(int argc,char **argv)
fprintf(stdout, "%s", dump.str().c_str());
return 0;
} else if (command == "diagnostic" && arg1 == "--schema") {
// Print the embedded JSON schema to stdout
fwrite(ZT_DIAGNOSTIC_SCHEMA_JSON, 1, ZT_DIAGNOSTIC_SCHEMA_JSON_LEN, stdout);
fputc('\n', stdout);
return 0;
} else {
cliPrintHelp(argv[0],stderr);
return 0;