source: a synthetic probe kind, and sessions that remember their source kind

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/ui.cpp

@@ -33,6 +33,7 @@
 #include "model.hpp"
 #include "plot_host.hpp"
 #include "search.hpp"
+#include "source/registry.hpp"
 #include "source_dialog.hpp"
 
 #include <adwaita.h>
@@ -100,8 +101,7 @@ void open_configurations(App& app) {
 
   GtkWidget* title = gtk_label_new(nullptr);
   gtk_label_set_markup(GTK_LABEL(title),
-                       ("<b>" + app.source_host + ":" + std::to_string(app.source_port) +
-                        "</b>")
+                       ("<b>" + app.source_title + "</b>")
                            .c_str());
   gtk_widget_set_halign(title, GTK_ALIGN_START);
   gtk_box_append(GTK_BOX(box), title);
@@ -5918,6 +5918,14 @@ int run_ui(int argc, char** argv, const Config& cfg, ScopeModel& model, Acquisit
   app.source_port = cfg.open_waveform.empty() ? cfg.session_port() : 0;
   app.source_multicast = cfg.open_waveform.empty() ? cfg.multicast : std::string();
   app.source_interface = cfg.interface_addr;
+  app.source_kind = cfg.source_kind;
+  app.source_opts = cfg.source_opts;
+  if (cfg.source_kind != "udps" && find_kind(cfg.source_kind) != nullptr) {
+    app.source_title = find_kind(cfg.source_kind)->display_name() + " " +
+                       find_kind(cfg.source_kind)->identity(cfg.source_config());
+  } else {
+    app.source_title = app.source_host + ":" + std::to_string(app.source_port);
+  }
   // The event cache is keyed on the source, like the packet capture. A waveform has no source, so a
   // file-mode run has no cache either -- there are no latches in a file.
   if (!app.source_host.empty() && app.source_port != 0) {