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1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2005 Mathieu Desnoyers |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License Version 2 as |
6 | * published by the Free Software Foundation; |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License |
14 | * along with this program; if not, write to the Free Software |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
16 | * MA 02111-1307, USA. |
17 | */ |
18 | |
19 | #ifdef HAVE_CONFIG_H |
20 | #include <config.h> |
21 | #endif |
22 | |
23 | #include <glib.h> |
24 | #include <string.h> |
25 | #include <gtk/gtk.h> |
26 | #include <gdk/gdk.h> |
27 | #include <gdk/gdkkeysyms.h> |
28 | |
29 | #include <lttv/lttv.h> |
30 | #include <lttv/module.h> |
31 | #include <lttv/hook.h> |
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32 | |
33 | #include <lttvwindow/lttvwindow.h> |
34 | #include <lttvwindow/lttvwindowtraces.h> |
35 | |
36 | #include "hTraceControlInsert.xpm" |
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37 | #include "TraceControlStart.xpm" |
38 | #include "TraceControlPause.xpm" |
39 | #include "TraceControlStop.xpm" |
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40 | |
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41 | #include <sys/types.h> |
42 | #include <unistd.h> |
43 | #include <stdlib.h> |
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44 | #include <pty.h> |
45 | #include <utmp.h> |
46 | #include <sys/wait.h> |
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47 | #include <sys/poll.h> |
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48 | |
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49 | #define MAX_ARGS_LEN PATH_MAX * 10 |
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50 | |
51 | GSList *g_control_list = NULL ; |
52 | |
53 | /*! \file lttv/modules/gui/tracecontrol/tracecontrol.c |
54 | * \brief Graphic trace start/stop control interface. |
55 | * |
56 | * This plugin interacts with lttctl to start/stop tracing. It needs to take the |
57 | * root password to be able to interact with lttctl. |
58 | * |
59 | */ |
60 | |
61 | typedef struct _ControlData ControlData; |
62 | |
63 | /* |
64 | * Prototypes |
65 | */ |
66 | GtkWidget *guicontrol_get_widget(ControlData *tcd); |
67 | ControlData *gui_control(Tab *tab); |
68 | void gui_control_destructor(ControlData *tcd); |
69 | GtkWidget* h_guicontrol(Tab *tab); |
70 | void control_destroy_walk(gpointer data, gpointer user_data); |
71 | |
72 | /* |
73 | * Callback functions |
74 | */ |
75 | |
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76 | static void start_clicked (GtkButton *button, gpointer user_data); |
77 | static void pause_clicked (GtkButton *button, gpointer user_data); |
78 | static void stop_clicked (GtkButton *button, gpointer user_data); |
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79 | |
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80 | |
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81 | /** |
82 | * @struct _ControlData |
83 | * |
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84 | * @brief Main structure of gui control |
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85 | */ |
86 | struct _ControlData { |
87 | Tab *tab; /**< current tab of module */ |
88 | |
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89 | GtkWidget *window; /**< window */ |
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90 | |
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91 | GtkWidget *main_box; /**< main container */ |
92 | GtkWidget *start_button; |
93 | GtkWidget *pause_button; |
94 | GtkWidget *stop_button; |
95 | GtkWidget *username_label; |
96 | GtkWidget *username_entry; |
97 | GtkWidget *password_label; |
98 | GtkWidget *password_entry; |
99 | GtkWidget *channel_dir_label; |
100 | GtkWidget *channel_dir_entry; |
101 | GtkWidget *trace_dir_label; |
102 | GtkWidget *trace_dir_entry; |
103 | GtkWidget *trace_name_label; |
104 | GtkWidget *trace_name_entry; |
105 | GtkWidget *trace_mode_label; |
106 | GtkWidget *trace_mode_combo; |
107 | GtkWidget *start_daemon_label; |
108 | GtkWidget *start_daemon_check; |
109 | GtkWidget *optional_label; |
110 | GtkWidget *subbuf_size_label; |
111 | GtkWidget *subbuf_size_entry; |
112 | GtkWidget *subbuf_num_label; |
113 | GtkWidget *subbuf_num_entry; |
114 | GtkWidget *lttctl_path_label; |
115 | GtkWidget *lttctl_path_entry; |
116 | GtkWidget *lttd_path_label; |
117 | GtkWidget *lttd_path_entry; |
118 | GtkWidget *fac_path_label; |
119 | GtkWidget *fac_path_entry; |
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120 | }; |
121 | |
122 | /** |
123 | * @fn GtkWidget* guicontrol_get_widget(ControlData*) |
124 | * |
125 | * This function returns the current main widget |
126 | * used by this module |
127 | * @param tcd the module struct |
128 | * @return The main widget |
129 | */ |
130 | GtkWidget* |
131 | guicontrol_get_widget(ControlData *tcd) |
132 | { |
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133 | return tcd->window; |
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134 | } |
135 | |
136 | /** |
137 | * @fn ControlData* gui_control(Tab*) |
138 | * |
139 | * Constructor is used to create ControlData data structure. |
140 | * @param tab The tab structure used by the widget |
141 | * @return The Filter viewer data created. |
142 | */ |
143 | ControlData* |
144 | gui_control(Tab *tab) |
145 | { |
146 | g_debug("filter::gui_control()"); |
147 | |
148 | unsigned i; |
149 | GtkCellRenderer *renderer; |
150 | GtkTreeViewColumn *column; |
151 | |
152 | ControlData* tcd = g_new(ControlData,1); |
153 | |
154 | tcd->tab = tab; |
155 | |
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156 | tcd->window = gtk_window_new(GTK_WINDOW_TOPLEVEL); |
157 | gtk_window_set_title(GTK_WINDOW(tcd->window), "LTTng Trace Control"); |
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158 | /* |
159 | * Initiating GtkTable layout |
160 | * starts with 2 rows and 5 columns and |
161 | * expands when expressions added |
162 | */ |
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163 | tcd->main_box = gtk_table_new(14,7,FALSE); |
164 | gtk_table_set_row_spacings(GTK_TABLE(tcd->main_box),5); |
165 | gtk_table_set_col_spacings(GTK_TABLE(tcd->main_box),5); |
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166 | |
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167 | gtk_container_add(GTK_CONTAINER(tcd->window), GTK_WIDGET(tcd->main_box)); |
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168 | |
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169 | GList *focus_chain = NULL; |
170 | |
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171 | /* |
172 | * start/pause/stop buttons |
173 | */ |
174 | GdkPixbuf *pixbuf; |
175 | GtkWidget *image; |
176 | pixbuf = gdk_pixbuf_new_from_xpm_data((const char **)TraceControlStart_xpm); |
177 | image = gtk_image_new_from_pixbuf(pixbuf); |
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178 | tcd->start_button = gtk_button_new_with_label("start"); |
179 | gtk_button_set_image(GTK_BUTTON(tcd->start_button), image); |
180 | gtk_button_set_alignment(GTK_BUTTON(tcd->start_button), 0.0, 0.0); |
181 | gtk_widget_show (tcd->start_button); |
182 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->start_button,6,7,0,1,GTK_FILL,GTK_FILL,2,2); |
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183 | |
184 | pixbuf = gdk_pixbuf_new_from_xpm_data((const char **)TraceControlPause_xpm); |
185 | image = gtk_image_new_from_pixbuf(pixbuf); |
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186 | tcd->pause_button = gtk_button_new_with_label("pause"); |
187 | gtk_button_set_image(GTK_BUTTON(tcd->pause_button), image); |
188 | gtk_button_set_alignment(GTK_BUTTON(tcd->pause_button), 0.0, 0.0); |
189 | gtk_widget_show (tcd->pause_button); |
190 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->pause_button,6,7,1,2,GTK_FILL,GTK_FILL,2,2); |
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191 | |
192 | pixbuf = gdk_pixbuf_new_from_xpm_data((const char **)TraceControlStop_xpm); |
193 | image = gtk_image_new_from_pixbuf(pixbuf); |
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194 | tcd->stop_button = gtk_button_new_with_label("stop"); |
195 | gtk_button_set_image(GTK_BUTTON(tcd->stop_button), image); |
196 | gtk_button_set_alignment(GTK_BUTTON(tcd->stop_button), 0.0, 0.0); |
197 | gtk_widget_show (tcd->stop_button); |
198 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->stop_button,6,7,2,3,GTK_FILL,GTK_FILL,2,2); |
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199 | |
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200 | /* |
201 | * First half of the filter window |
202 | * - textual entry of filter expression |
203 | * - processing button |
204 | */ |
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205 | tcd->username_label = gtk_label_new("Username:"); |
206 | gtk_widget_show (tcd->username_label); |
207 | tcd->username_entry = gtk_entry_new(); |
208 | gtk_entry_set_text(GTK_ENTRY(tcd->username_entry),"root"); |
209 | gtk_widget_show (tcd->username_entry); |
210 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->username_label,0,2,0,1,GTK_FILL,GTK_FILL,2,2); |
211 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->username_entry,2,6,0,1,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
212 | |
213 | |
214 | |
215 | tcd->password_label = gtk_label_new("Password:"); |
216 | gtk_widget_show (tcd->password_label); |
217 | tcd->password_entry = gtk_entry_new(); |
218 | gtk_entry_set_visibility(GTK_ENTRY(tcd->password_entry), FALSE); |
219 | gtk_widget_show (tcd->password_entry); |
220 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->password_label,0,2,1,2,GTK_FILL,GTK_FILL,2,2); |
221 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->password_entry,2,6,1,2,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
222 | |
223 | |
224 | tcd->channel_dir_label = gtk_label_new("Channel directory:"); |
225 | gtk_widget_show (tcd->channel_dir_label); |
226 | tcd->channel_dir_entry = gtk_entry_new(); |
227 | gtk_entry_set_text(GTK_ENTRY(tcd->channel_dir_entry),"/mnt/relayfs/ltt"); |
228 | gtk_widget_show (tcd->channel_dir_entry); |
229 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->channel_dir_label,0,2,2,3,GTK_FILL,GTK_FILL,2,2); |
230 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->channel_dir_entry,2,6,2,3,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
231 | |
232 | tcd->trace_dir_label = gtk_label_new("Trace directory:"); |
233 | gtk_widget_show (tcd->trace_dir_label); |
234 | tcd->trace_dir_entry = gtk_entry_new(); |
235 | gtk_entry_set_text(GTK_ENTRY(tcd->trace_dir_entry),"/tmp/trace1"); |
236 | gtk_widget_show (tcd->trace_dir_entry); |
237 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->trace_dir_label,0,2,3,4,GTK_FILL,GTK_FILL,2,2); |
238 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->trace_dir_entry,2,6,3,4,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
239 | |
240 | tcd->trace_name_label = gtk_label_new("Trace name:"); |
241 | gtk_widget_show (tcd->trace_name_label); |
242 | tcd->trace_name_entry = gtk_entry_new(); |
243 | gtk_entry_set_text(GTK_ENTRY(tcd->trace_name_entry),"trace"); |
244 | gtk_widget_show (tcd->trace_name_entry); |
245 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->trace_name_label,0,2,4,5,GTK_FILL,GTK_FILL,2,2); |
246 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->trace_name_entry,2,6,4,5,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
247 | |
248 | tcd->trace_mode_label = gtk_label_new("Trace mode "); |
249 | gtk_widget_show (tcd->trace_mode_label); |
250 | tcd->trace_mode_combo = gtk_combo_box_new_text(); |
251 | gtk_combo_box_append_text(GTK_COMBO_BOX(tcd->trace_mode_combo), |
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252 | "normal"); |
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253 | gtk_combo_box_append_text(GTK_COMBO_BOX(tcd->trace_mode_combo), |
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254 | "flight recorder"); |
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255 | gtk_combo_box_set_active(GTK_COMBO_BOX(tcd->trace_mode_combo), 0); |
256 | gtk_widget_show (tcd->trace_mode_combo); |
257 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->trace_mode_label,0,2,5,6,GTK_FILL,GTK_FILL,2,2); |
258 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->trace_mode_combo,2,6,5,6,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
259 | |
260 | tcd->start_daemon_label = gtk_label_new("Start daemon "); |
261 | gtk_widget_show (tcd->start_daemon_label); |
262 | tcd->start_daemon_check = gtk_check_button_new(); |
263 | gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tcd->start_daemon_check), TRUE); |
264 | gtk_widget_show (tcd->start_daemon_check); |
265 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->start_daemon_label,0,2,6,7,GTK_FILL,GTK_FILL,2,2); |
266 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->start_daemon_check,2,6,6,7,GTK_FILL,GTK_FILL,0,0); |
267 | |
268 | tcd->optional_label = gtk_label_new("Optional fields "); |
269 | gtk_widget_show (tcd->optional_label); |
270 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->optional_label,0,6,7,8,GTK_FILL,GTK_FILL,2,2); |
271 | |
272 | tcd->subbuf_size_label = gtk_label_new("Subbuffer size:"); |
273 | gtk_widget_show (tcd->subbuf_size_label); |
274 | tcd->subbuf_size_entry = gtk_entry_new(); |
275 | gtk_widget_show (tcd->subbuf_size_entry); |
276 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->subbuf_size_label,0,2,8,9,GTK_FILL,GTK_FILL,2,2); |
277 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->subbuf_size_entry,2,6,8,9,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
278 | |
279 | tcd->subbuf_num_label = gtk_label_new("Number of subbuffers:"); |
280 | gtk_widget_show (tcd->subbuf_num_label); |
281 | tcd->subbuf_num_entry = gtk_entry_new(); |
282 | gtk_widget_show (tcd->subbuf_num_entry); |
283 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->subbuf_num_label,0,2,9,10,GTK_FILL,GTK_FILL,2,2); |
284 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->subbuf_num_entry,2,6,9,10,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
285 | |
286 | tcd->lttctl_path_label = gtk_label_new("path to lttctl:"); |
287 | gtk_widget_show (tcd->lttctl_path_label); |
288 | tcd->lttctl_path_entry = gtk_entry_new(); |
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289 | gtk_entry_set_text(GTK_ENTRY(tcd->lttctl_path_entry),PACKAGE_BIN_DIR "/lttctl"); |
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290 | gtk_widget_show (tcd->lttctl_path_entry); |
291 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->lttctl_path_label,0,2,10,11,GTK_FILL,GTK_FILL,2,2); |
292 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->lttctl_path_entry,2,6,10,11,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
293 | |
294 | |
295 | tcd->lttd_path_label = gtk_label_new("path to lttd:"); |
296 | gtk_widget_show (tcd->lttd_path_label); |
297 | tcd->lttd_path_entry = gtk_entry_new(); |
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298 | gtk_entry_set_text(GTK_ENTRY(tcd->lttd_path_entry),PACKAGE_BIN_DIR "/lttd"); |
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299 | gtk_widget_show (tcd->lttd_path_entry); |
300 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->lttd_path_label,0,2,11,12,GTK_FILL,GTK_FILL,2,2); |
301 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->lttd_path_entry,2,6,11,12,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
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302 | |
303 | |
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304 | tcd->fac_path_label = gtk_label_new("path to facilities:"); |
305 | gtk_widget_show (tcd->fac_path_label); |
306 | tcd->fac_path_entry = gtk_entry_new(); |
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307 | gtk_entry_set_text(GTK_ENTRY(tcd->fac_path_entry),PACKAGE_DATA_DIR "/" PACKAGE "/facilities"); |
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308 | gtk_widget_set_size_request(tcd->fac_path_entry, 250, -1); |
309 | gtk_widget_show (tcd->fac_path_entry); |
310 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->fac_path_label,0,2,12,13,GTK_FILL,GTK_FILL,2,2); |
311 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->fac_path_entry,2,6,12,13,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
312 | |
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313 | |
314 | GtkWidget *start_button; |
315 | GtkWidget *pause_button; |
316 | GtkWidget *stop_button; |
317 | |
318 | GtkWidget *username_entry; |
319 | GtkWidget *password_entry; |
320 | GtkWidget *channel_dir_entry; |
321 | GtkWidget *trace_dir_entry; |
322 | GtkWidget *trace_name_entry; |
323 | GtkWidget *trace_mode_combo; |
324 | GtkWidget *start_daemon_check; |
325 | GtkWidget *subbuf_size_entry; |
326 | GtkWidget *subbuf_num_entry; |
327 | GtkWidget *lttctl_path_entry; |
328 | GtkWidget *lttd_path_entry; |
329 | GtkWidget *fac_path_entry; |
330 | |
331 | focus_chain = g_list_append (focus_chain, tcd->username_entry); |
332 | focus_chain = g_list_append (focus_chain, tcd->password_entry); |
333 | focus_chain = g_list_append (focus_chain, tcd->start_button); |
334 | focus_chain = g_list_append (focus_chain, tcd->pause_button); |
335 | focus_chain = g_list_append (focus_chain, tcd->stop_button); |
336 | focus_chain = g_list_append (focus_chain, tcd->channel_dir_entry); |
337 | focus_chain = g_list_append (focus_chain, tcd->trace_dir_entry); |
338 | focus_chain = g_list_append (focus_chain, tcd->trace_name_entry); |
339 | focus_chain = g_list_append (focus_chain, tcd->trace_mode_combo); |
340 | focus_chain = g_list_append (focus_chain, tcd->start_daemon_check); |
341 | focus_chain = g_list_append (focus_chain, tcd->subbuf_size_entry); |
342 | focus_chain = g_list_append (focus_chain, tcd->subbuf_num_entry); |
343 | focus_chain = g_list_append (focus_chain, tcd->lttctl_path_entry); |
344 | focus_chain = g_list_append (focus_chain, tcd->lttd_path_entry); |
345 | focus_chain = g_list_append (focus_chain, tcd->fac_path_entry); |
346 | |
347 | gtk_container_set_focus_chain(GTK_CONTAINER(tcd->main_box), focus_chain); |
348 | |
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349 | g_signal_connect(G_OBJECT(tcd->start_button), "clicked", |
350 | (GCallback)start_clicked, tcd); |
351 | g_signal_connect(G_OBJECT(tcd->pause_button), "clicked", |
352 | (GCallback)pause_clicked, tcd); |
353 | g_signal_connect(G_OBJECT(tcd->stop_button), "clicked", |
354 | (GCallback)stop_clicked, tcd); |
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355 | |
356 | /* |
357 | * show main container |
358 | */ |
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359 | gtk_widget_show(tcd->main_box); |
360 | gtk_widget_show(tcd->window); |
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361 | |
362 | |
363 | g_object_set_data_full( |
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364 | G_OBJECT(guicontrol_get_widget(tcd)), |
365 | "control_viewer_data", |
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366 | tcd, |
367 | (GDestroyNotify)gui_control_destructor); |
368 | |
369 | g_control_list = g_slist_append( |
370 | g_control_list, |
371 | tcd); |
372 | |
373 | return tcd; |
374 | } |
375 | |
376 | |
377 | /** |
378 | * @fn void gui_control_destructor(ControlData*) |
379 | * |
380 | * Destructor for the filter gui module |
381 | * @param tcd The module structure |
382 | */ |
383 | void |
384 | gui_control_destructor(ControlData *tcd) |
385 | { |
386 | Tab *tab = tcd->tab; |
387 | |
388 | /* May already been done by GTK window closing */ |
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389 | if(GTK_IS_WIDGET(guicontrol_get_widget(tcd))){ |
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390 | g_info("widget still exists"); |
391 | } |
392 | // if(tab != NULL) { |
393 | // lttvwindow_unregister_traceset_notify(tcd->tab, |
394 | // filter_traceset_changed, |
395 | // filter_viewer_data); |
396 | // } |
397 | lttvwindowtraces_background_notify_remove(tcd); |
398 | |
399 | g_control_list = g_slist_remove(g_control_list, tcd); |
400 | |
401 | g_free(tcd); |
402 | } |
403 | |
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404 | /* Callbacks */ |
405 | |
406 | void start_clicked (GtkButton *button, gpointer user_data) |
407 | { |
408 | ControlData *tcd = (ControlData*)user_data; |
409 | |
410 | const gchar *username = gtk_entry_get_text(GTK_ENTRY(tcd->username_entry)); |
411 | const gchar *password = gtk_entry_get_text(GTK_ENTRY(tcd->password_entry)); |
412 | const gchar *channel_dir = |
413 | gtk_entry_get_text(GTK_ENTRY(tcd->channel_dir_entry)); |
414 | const gchar *trace_dir = gtk_entry_get_text(GTK_ENTRY(tcd->trace_dir_entry)); |
415 | const gchar *trace_name = |
416 | gtk_entry_get_text(GTK_ENTRY(tcd->trace_name_entry)); |
417 | |
418 | const gchar *trace_mode_sel = |
419 | gtk_combo_box_get_active_text(GTK_COMBO_BOX(tcd->trace_mode_combo)); |
420 | const gchar *trace_mode; |
421 | if(strcmp(trace_mode_sel, "normal") == 0) |
422 | trace_mode = "normal"; |
423 | else |
424 | trace_mode = "flight"; |
425 | |
426 | gboolean start_daemon = |
f6f6abf0 |
427 | gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tcd->start_daemon_check)); |
77ef407f |
428 | |
429 | const gchar *subbuf_size = |
430 | gtk_entry_get_text(GTK_ENTRY(tcd->subbuf_size_entry)); |
431 | const gchar *subbuf_num = |
432 | gtk_entry_get_text(GTK_ENTRY(tcd->subbuf_num_entry)); |
433 | const gchar *lttctl_path = |
434 | gtk_entry_get_text(GTK_ENTRY(tcd->lttctl_path_entry)); |
435 | const gchar *lttd_path = gtk_entry_get_text(GTK_ENTRY(tcd->lttd_path_entry)); |
436 | const gchar *fac_path = gtk_entry_get_text(GTK_ENTRY(tcd->fac_path_entry)); |
437 | |
ff430216 |
438 | //pid_t pid = fork(); |
439 | pid_t pid; |
440 | int fdpty; |
441 | pid = forkpty(&fdpty, NULL, NULL, NULL); |
77ef407f |
442 | |
443 | if(pid > 0) { |
444 | /* parent */ |
ff430216 |
445 | gchar buf[256]; |
446 | int status; |
447 | ssize_t count; |
448 | /* discuss with su */ |
449 | struct timeval timeout; |
450 | timeout.tv_sec = 1; |
451 | timeout.tv_usec = 0; |
ff430216 |
452 | |
86a65fdb |
453 | struct pollfd pollfd; |
454 | int num_rdy; |
455 | int num_hup = 0; |
456 | |
457 | |
458 | /* Read the output from the child terminal before the prompt. If no data in |
459 | * 200 ms, we stop reading to give the password */ |
460 | g_info("Reading from child console..."); |
461 | while(1) { |
462 | pollfd.fd = fdpty; |
463 | pollfd.events = POLLIN|POLLPRI; |
464 | |
465 | num_rdy = poll(&pollfd, 1, 200); |
466 | #if 0 |
467 | if(num_rdy == -1) { |
468 | perror("Poll error"); |
469 | goto wait_child; |
470 | } |
471 | #endif //0 |
472 | |
473 | /* Timeout : stop waiting for chars */ |
474 | if(num_rdy == 0) break; |
475 | |
476 | switch(pollfd.revents) { |
477 | case POLLERR: |
478 | g_warning("Error returned in polling fd\n"); |
479 | num_hup++; |
480 | break; |
481 | case POLLHUP: |
482 | g_info("Polling FD : hung up."); |
483 | num_hup++; |
484 | break; |
485 | case POLLNVAL: |
486 | g_warning("Polling fd tells it is not open"); |
487 | num_hup++; |
488 | break; |
489 | case POLLPRI: |
490 | case POLLIN: |
491 | count = read (fdpty, buf, 256); |
492 | if(count > 0) { |
493 | buf[count] = '\0'; |
494 | printf("%s", buf); |
495 | } else if(count == -1) { |
496 | perror("Error in read"); |
497 | goto wait_child; |
498 | } |
499 | break; |
500 | } |
501 | if(num_hup > 0) { |
502 | g_warning("Child hung up too fast"); |
503 | goto wait_child; |
504 | } |
505 | } |
506 | |
507 | /* Write the password */ |
ff430216 |
508 | g_info("Got su prompt, now writing password..."); |
ff430216 |
509 | int ret; |
510 | ret = write(fdpty, password, strlen(password)); |
511 | if(ret < 0) perror("Error in write"); |
512 | ret = write(fdpty, "\n", 1); |
513 | if(ret < 0) perror("Error in write"); |
514 | fsync(fdpty); |
515 | |
86a65fdb |
516 | /* Take the output from the terminal and show it on the real console */ |
517 | g_info("Getting data from child terminal..."); |
518 | while(1) { |
519 | int num_hup = 0; |
520 | pollfd.fd = fdpty; |
521 | pollfd.events = POLLIN|POLLPRI; |
522 | |
523 | num_rdy = poll(&pollfd, 1, -1); |
524 | #if 0 |
525 | if(num_rdy == -1) { |
526 | perror("Poll error"); |
527 | goto wait_child; |
528 | } |
529 | #endif //0 |
530 | if(num_rdy == 0) break; |
531 | |
532 | switch(pollfd.revents) { |
533 | case POLLERR: |
534 | g_warning("Error returned in polling fd\n"); |
535 | num_hup++; |
536 | break; |
537 | case POLLHUP: |
538 | g_info("Polling FD : hung up."); |
539 | num_hup++; |
540 | break; |
541 | case POLLNVAL: |
542 | g_warning("Polling fd tells it is not open"); |
543 | num_hup++; |
544 | break; |
545 | case POLLPRI: |
546 | case POLLIN: |
547 | count = read (fdpty, buf, 256); |
548 | if(count > 0) { |
549 | buf[count] = '\0'; |
550 | printf("%s", buf); |
551 | } else if(count == -1) { |
552 | perror("Error in read"); |
553 | goto wait_child; |
554 | } |
555 | break; |
ff430216 |
556 | } |
86a65fdb |
557 | if(num_hup > 0) goto wait_child; |
558 | } |
559 | wait_child: |
560 | g_info("Waiting for child exit..."); |
561 | |
562 | ret = waitpid(pid, &status, 0); |
ff430216 |
563 | |
86a65fdb |
564 | if(WIFEXITED(ret)) |
565 | if(WEXITSTATUS(ret) != 0) |
566 | g_warning("An error occured in the su command : %s", |
567 | strerror(WEXITSTATUS(ret))); |
77ef407f |
568 | |
86a65fdb |
569 | g_info("Child exited."); |
77ef407f |
570 | |
571 | } else if(pid == 0) { |
572 | /* child */ |
f6f6abf0 |
573 | gchar args[MAX_ARGS_LEN]; |
574 | gint args_left = MAX_ARGS_LEN - 1; /* for \0 */ |
575 | |
576 | /* Setup environment variables */ |
77ef407f |
577 | if(strcmp(lttd_path, "") != 0) |
578 | setenv("LTT_DAEMON", lttd_path, 1); |
579 | if(strcmp(fac_path, "") != 0) |
580 | setenv("LTT_FACILITIES", fac_path, 1); |
f6f6abf0 |
581 | |
582 | /* Setup arguments to su */ |
86a65fdb |
583 | //strncpy(args, "\'", args_left); |
584 | //args_left = MAX_ARGS_LEN - strlen(args) - 1; |
ff430216 |
585 | |
86a65fdb |
586 | /* Command */ |
587 | strncat(args, "exec", args_left); |
588 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
589 | |
590 | /* space */ |
591 | strncat(args, " ", args_left); |
592 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
593 | |
ff430216 |
594 | if(strcmp(lttctl_path, "") == 0) |
86a65fdb |
595 | strncat(args, "lttctl", args_left); |
596 | else |
597 | strncat(args, lttctl_path, args_left); |
598 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
599 | |
600 | /* space */ |
601 | strncat(args, " ", args_left); |
602 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
f6f6abf0 |
603 | |
604 | /* channel dir */ |
605 | strncat(args, "-l ", args_left); |
606 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
607 | strncat(args, channel_dir, args_left); |
608 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
609 | |
610 | /* space */ |
611 | strncat(args, " ", args_left); |
612 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
613 | |
614 | /* trace dir */ |
615 | strncat(args, "-t ", args_left); |
616 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
617 | strncat(args, trace_dir, args_left); |
618 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
619 | |
620 | /* space */ |
621 | strncat(args, " ", args_left); |
622 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
623 | |
624 | /* name */ |
625 | strncat(args, "-n ", args_left); |
626 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
627 | strncat(args, trace_name, args_left); |
628 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
629 | |
630 | /* space */ |
631 | strncat(args, " ", args_left); |
632 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
633 | |
634 | /* trace mode */ |
635 | strncat(args, "-m ", args_left); |
636 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
637 | strncat(args, trace_mode, args_left); |
638 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
639 | |
640 | /* space */ |
641 | strncat(args, " ", args_left); |
642 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
643 | |
644 | /* Start daemon ? */ |
645 | if(start_daemon) { |
646 | strncat(args, "-d", args_left); |
647 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
648 | } else { |
649 | /* Simply create the channel and then start tracing */ |
650 | strncat(args, "-b", args_left); |
651 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
652 | } |
653 | |
f6f6abf0 |
654 | /* optional arguments */ |
655 | /* subbuffer size */ |
656 | if(strcmp(subbuf_size, "") != 0) { |
ff430216 |
657 | /* space */ |
658 | strncat(args, " ", args_left); |
659 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
660 | |
f6f6abf0 |
661 | strncat(args, "-z ", args_left); |
662 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
663 | strncat(args, subbuf_size, args_left); |
664 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
665 | } |
666 | |
f6f6abf0 |
667 | /* number of subbuffers */ |
668 | if(strcmp(subbuf_num, "") != 0) { |
ff430216 |
669 | /* space */ |
670 | strncat(args, " ", args_left); |
671 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
672 | |
f6f6abf0 |
673 | strncat(args, "-x ", args_left); |
674 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
675 | strncat(args, subbuf_num, args_left); |
676 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
677 | } |
86a65fdb |
678 | |
679 | //strncat(args, "\'", args_left); |
680 | //args_left = MAX_ARGS_LEN - strlen(args) - 1; |
f6f6abf0 |
681 | |
86a65fdb |
682 | g_message("Executing (as %s) : %s\n", username, args); |
ff430216 |
683 | |
86a65fdb |
684 | execlp("su", "su", "-p", "-c", args, username, NULL); |
ff430216 |
685 | exit(-1); /* not supposed to happen! */ |
686 | //system(args); |
687 | //system("echo blah"); |
688 | //exit(0); |
77ef407f |
689 | |
690 | //gint ret = execvp(); |
691 | |
692 | } else { |
693 | /* error */ |
ff430216 |
694 | g_warning("Error happened when forking for su"); |
77ef407f |
695 | } |
696 | |
697 | } |
698 | |
699 | |
700 | void pause_clicked (GtkButton *button, gpointer user_data) |
701 | { |
702 | ControlData *tcd = (ControlData*)user_data; |
703 | |
704 | |
705 | } |
706 | |
707 | void stop_clicked (GtkButton *button, gpointer user_data) |
708 | { |
709 | ControlData *tcd = (ControlData*)user_data; |
710 | |
711 | |
712 | } |
713 | |
e7c8534e |
714 | |
715 | /** |
716 | * @fn GtkWidget* h_guicontrol(Tab*) |
717 | * |
718 | * Control Module's constructor hook |
719 | * |
720 | * This constructor is given as a parameter to the menuitem and toolbar button |
721 | * registration. It creates the list. |
722 | * @param tab A pointer to the parent window. |
723 | * @return The widget created. |
724 | */ |
725 | GtkWidget * |
726 | h_guicontrol(Tab *tab) |
727 | { |
728 | ControlData* f = gui_control(tab) ; |
729 | |
730 | return NULL; |
731 | } |
732 | |
733 | /** |
734 | * @fn static void init() |
735 | * |
736 | * This function initializes the Filter Viewer functionnality through the |
737 | * gtkTraceSet API. |
738 | */ |
739 | static void init() { |
740 | |
741 | lttvwindow_register_constructor("guicontrol", |
742 | "/", |
743 | "Insert Tracing Control Module", |
744 | hTraceControlInsert_xpm, |
745 | "Insert Tracing Control Module", |
746 | h_guicontrol); |
747 | } |
748 | |
749 | /** |
750 | * @fn void control_destroy_walk(gpointer,gpointer) |
751 | * |
752 | * Initiate the destruction of the current gui module |
753 | * on the GTK Interface |
754 | */ |
755 | void |
756 | control_destroy_walk(gpointer data, gpointer user_data) |
757 | { |
758 | ControlData *tcd = (ControlData*)data; |
759 | |
760 | g_debug("traceontrol.c : control_destroy_walk, %p", tcd); |
761 | |
762 | /* May already have been done by GTK window closing */ |
763 | if(GTK_IS_WIDGET(guicontrol_get_widget(tcd))) |
764 | gtk_widget_destroy(guicontrol_get_widget(tcd)); |
765 | } |
766 | |
767 | /** |
768 | * @fn static void destroy() |
769 | * @brief plugin's destroy function |
770 | * |
771 | * This function releases the memory reserved by the module and unregisters |
772 | * everything that has been registered in the gtkTraceSet API. |
773 | */ |
774 | static void destroy() { |
775 | |
776 | g_slist_foreach(g_control_list, control_destroy_walk, NULL ); |
777 | |
778 | lttvwindow_unregister_constructor(h_guicontrol); |
779 | |
780 | } |
781 | |
782 | |
783 | LTTV_MODULE("guitracecontrol", "Trace Control Window", \ |
784 | "Graphical module that let user control kernel tracing", \ |
785 | init, destroy, "lttvwindow") |
786 | |