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Shell: ping, nslookup, port, traceroute, ifconfig and arp (#90)
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Network troubleshooting from the device itself, in the Shell and over both
consoles. ping, nslookup, port and traceroute each run on a task of their
own and print as they go, to the console that asked; one at a time, and
`cancel` stops it. ifconfig and arp answer at once: the interfaces (Wi-Fi
and the VPN), which is the default route, the DNS servers, the neighbours.

nslookup asks a DNS server itself, so it can say which server answered and
in how long, and ask another. A sized ping finds what a tunnel really
carries.

With a how-to, "When the network doesn't work", and the rest of the docs.
tls, ntp and netstat from the issue's list are not in this.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT
This commit is contained in:
twisla
2026-10-08 02:29:04 +02:00
co-authored by Claude Opus 5.5
parent 86172c0342
commit ed7abdcaf5
16 changed files with 969 additions and 6 deletions
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src/main.cpp
+6
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@@ -12,6 +12,7 @@
#include "apps/demo_app.h"
#include "apps/note_editor.h"
#include "apps/shell_app.h"
#include "services/net_tools.h"
#include "services/vpn_service.h"
#include "services/web_share.h"
#include "apps/gemini_app.h"
@@ -89,6 +90,7 @@ static IrcService* irc;
static UpdateService* update;
static DebugConsole* debugConsole;
static VpnService* vpnService; // not in Safe Mode
static NetTools netTools; // ping, nslookup and the rest (issue #90)
static Notifier* notifier;
static LauncherApp launcher;
static AppManager* apps;
@@ -674,6 +676,8 @@ static const char* const kHelp =
"update check | update list | update status | update install <tag> the project's releases on Gitea\n"
"sd card | sd list | cat <path> | log <text> | burst | sound on|off | short | normal\n"
"Irc | Wifi | Gnss | Gemini | Lora | Storage | Notes | Shell | System | Settings open that App: a capital letter is an App, not a command\n"
"ping <host> [count] [size] | nslookup <name> [server] | port <host> <port> | traceroute <host> | cancel is it there, does its name resolve, is its port open, which way; one at a time\n"
"ifconfig | arp the interfaces (Wi-Fi and the VPN), their addresses, the default route and the DNS servers; the neighbours heard\n"
"vpn status | vpn up [seconds] | vpn down | vpn import [path] | vpn forget | vpn auto on|off the WireGuard tunnel (Settings > VPN); import reads /vpn/wg0.conf; with seconds, it goes down by itself\n"
"debug status | debug off [seconds] the Debug Console over Wi-Fi (Settings > Debug Console); with seconds, it comes back\n"
"debug on | debug token <16 to 64 characters> | debug token new (USB serial only) switch it on, set its token\n"
@@ -866,6 +870,8 @@ static void runCommand(String line, bool fromSerial = false) {
else console.println("Not now: Setup is running");
return;
}
if (netTools.command(line.c_str())) return;
if (line == "cancel") netTools.cancel(); // and a copy or a delete, below
if (line == "vpn" || line.startsWith("vpn ")) return vpnCommand(line.length() > 4 ? line.substring(4) : String("status"));
if (line.startsWith("debug ")) return debugCommand(line.substring(6), fromSerial);
if (line == "screenshot" || line.startsWith("screenshot ")) {