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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); |
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78 | static void unpause_clicked (GtkButton *button, gpointer user_data); |
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79 | static void stop_clicked (GtkButton *button, gpointer user_data); |
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80 | |
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81 | |
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82 | /** |
83 | * @struct _ControlData |
84 | * |
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85 | * @brief Main structure of gui control |
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86 | */ |
87 | struct _ControlData { |
88 | Tab *tab; /**< current tab of module */ |
89 | |
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90 | GtkWidget *window; /**< window */ |
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91 | |
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92 | GtkWidget *main_box; /**< main container */ |
93 | GtkWidget *start_button; |
94 | GtkWidget *pause_button; |
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95 | GtkWidget *unpause_button; |
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96 | GtkWidget *stop_button; |
97 | GtkWidget *username_label; |
98 | GtkWidget *username_entry; |
99 | GtkWidget *password_label; |
100 | GtkWidget *password_entry; |
101 | GtkWidget *channel_dir_label; |
102 | GtkWidget *channel_dir_entry; |
103 | GtkWidget *trace_dir_label; |
104 | GtkWidget *trace_dir_entry; |
105 | GtkWidget *trace_name_label; |
106 | GtkWidget *trace_name_entry; |
107 | GtkWidget *trace_mode_label; |
108 | GtkWidget *trace_mode_combo; |
109 | GtkWidget *start_daemon_label; |
110 | GtkWidget *start_daemon_check; |
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111 | GtkWidget *append_label; |
112 | GtkWidget *append_check; |
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113 | GtkWidget *optional_label; |
114 | GtkWidget *subbuf_size_label; |
115 | GtkWidget *subbuf_size_entry; |
116 | GtkWidget *subbuf_num_label; |
117 | GtkWidget *subbuf_num_entry; |
118 | GtkWidget *lttctl_path_label; |
119 | GtkWidget *lttctl_path_entry; |
120 | GtkWidget *lttd_path_label; |
121 | GtkWidget *lttd_path_entry; |
122 | GtkWidget *fac_path_label; |
123 | GtkWidget *fac_path_entry; |
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124 | }; |
125 | |
126 | /** |
127 | * @fn GtkWidget* guicontrol_get_widget(ControlData*) |
128 | * |
129 | * This function returns the current main widget |
130 | * used by this module |
131 | * @param tcd the module struct |
132 | * @return The main widget |
133 | */ |
134 | GtkWidget* |
135 | guicontrol_get_widget(ControlData *tcd) |
136 | { |
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137 | return tcd->window; |
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138 | } |
139 | |
140 | /** |
141 | * @fn ControlData* gui_control(Tab*) |
142 | * |
143 | * Constructor is used to create ControlData data structure. |
144 | * @param tab The tab structure used by the widget |
145 | * @return The Filter viewer data created. |
146 | */ |
147 | ControlData* |
148 | gui_control(Tab *tab) |
149 | { |
150 | g_debug("filter::gui_control()"); |
151 | |
152 | unsigned i; |
153 | GtkCellRenderer *renderer; |
154 | GtkTreeViewColumn *column; |
155 | |
156 | ControlData* tcd = g_new(ControlData,1); |
157 | |
158 | tcd->tab = tab; |
159 | |
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160 | tcd->window = gtk_window_new(GTK_WINDOW_TOPLEVEL); |
161 | gtk_window_set_title(GTK_WINDOW(tcd->window), "LTTng Trace Control"); |
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162 | /* |
163 | * Initiating GtkTable layout |
164 | * starts with 2 rows and 5 columns and |
165 | * expands when expressions added |
166 | */ |
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167 | tcd->main_box = gtk_table_new(14,7,FALSE); |
168 | gtk_table_set_row_spacings(GTK_TABLE(tcd->main_box),5); |
169 | gtk_table_set_col_spacings(GTK_TABLE(tcd->main_box),5); |
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170 | |
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171 | gtk_container_add(GTK_CONTAINER(tcd->window), GTK_WIDGET(tcd->main_box)); |
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172 | |
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173 | GList *focus_chain = NULL; |
174 | |
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175 | /* |
176 | * start/pause/stop buttons |
177 | */ |
178 | GdkPixbuf *pixbuf; |
179 | GtkWidget *image; |
180 | pixbuf = gdk_pixbuf_new_from_xpm_data((const char **)TraceControlStart_xpm); |
181 | image = gtk_image_new_from_pixbuf(pixbuf); |
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182 | tcd->start_button = gtk_button_new_with_label("start"); |
183 | gtk_button_set_image(GTK_BUTTON(tcd->start_button), image); |
184 | gtk_button_set_alignment(GTK_BUTTON(tcd->start_button), 0.0, 0.0); |
185 | gtk_widget_show (tcd->start_button); |
186 | 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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187 | |
188 | pixbuf = gdk_pixbuf_new_from_xpm_data((const char **)TraceControlPause_xpm); |
189 | image = gtk_image_new_from_pixbuf(pixbuf); |
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190 | tcd->pause_button = gtk_button_new_with_label("pause"); |
191 | gtk_button_set_image(GTK_BUTTON(tcd->pause_button), image); |
192 | gtk_button_set_alignment(GTK_BUTTON(tcd->pause_button), 0.0, 0.0); |
193 | gtk_widget_show (tcd->pause_button); |
194 | 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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195 | |
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196 | pixbuf = gdk_pixbuf_new_from_xpm_data((const char **)TraceControlPause_xpm); |
197 | image = gtk_image_new_from_pixbuf(pixbuf); |
198 | tcd->unpause_button = gtk_button_new_with_label("unpause"); |
199 | gtk_button_set_image(GTK_BUTTON(tcd->unpause_button), image); |
200 | gtk_button_set_alignment(GTK_BUTTON(tcd->unpause_button), 0.0, 0.0); |
201 | gtk_widget_show (tcd->unpause_button); |
202 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->unpause_button,6,7,2,3,GTK_FILL,GTK_FILL,2,2); |
203 | |
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204 | pixbuf = gdk_pixbuf_new_from_xpm_data((const char **)TraceControlStop_xpm); |
205 | image = gtk_image_new_from_pixbuf(pixbuf); |
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206 | tcd->stop_button = gtk_button_new_with_label("stop"); |
207 | gtk_button_set_image(GTK_BUTTON(tcd->stop_button), image); |
208 | gtk_button_set_alignment(GTK_BUTTON(tcd->stop_button), 0.0, 0.0); |
209 | gtk_widget_show (tcd->stop_button); |
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210 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->stop_button,6,7,3,4,GTK_FILL,GTK_FILL,2,2); |
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211 | |
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212 | /* |
213 | * First half of the filter window |
214 | * - textual entry of filter expression |
215 | * - processing button |
216 | */ |
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217 | tcd->username_label = gtk_label_new("Username:"); |
218 | gtk_widget_show (tcd->username_label); |
219 | tcd->username_entry = gtk_entry_new(); |
220 | gtk_entry_set_text(GTK_ENTRY(tcd->username_entry),"root"); |
221 | gtk_widget_show (tcd->username_entry); |
222 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->username_label,0,2,0,1,GTK_FILL,GTK_FILL,2,2); |
223 | 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); |
224 | |
225 | |
226 | |
227 | tcd->password_label = gtk_label_new("Password:"); |
228 | gtk_widget_show (tcd->password_label); |
229 | tcd->password_entry = gtk_entry_new(); |
230 | gtk_entry_set_visibility(GTK_ENTRY(tcd->password_entry), FALSE); |
231 | gtk_widget_show (tcd->password_entry); |
232 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->password_label,0,2,1,2,GTK_FILL,GTK_FILL,2,2); |
233 | 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); |
234 | |
235 | |
236 | tcd->channel_dir_label = gtk_label_new("Channel directory:"); |
237 | gtk_widget_show (tcd->channel_dir_label); |
238 | tcd->channel_dir_entry = gtk_entry_new(); |
239 | gtk_entry_set_text(GTK_ENTRY(tcd->channel_dir_entry),"/mnt/relayfs/ltt"); |
240 | gtk_widget_show (tcd->channel_dir_entry); |
241 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->channel_dir_label,0,2,2,3,GTK_FILL,GTK_FILL,2,2); |
242 | 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); |
243 | |
244 | tcd->trace_dir_label = gtk_label_new("Trace directory:"); |
245 | gtk_widget_show (tcd->trace_dir_label); |
246 | tcd->trace_dir_entry = gtk_entry_new(); |
247 | gtk_entry_set_text(GTK_ENTRY(tcd->trace_dir_entry),"/tmp/trace1"); |
248 | gtk_widget_show (tcd->trace_dir_entry); |
249 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->trace_dir_label,0,2,3,4,GTK_FILL,GTK_FILL,2,2); |
250 | 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); |
251 | |
252 | tcd->trace_name_label = gtk_label_new("Trace name:"); |
253 | gtk_widget_show (tcd->trace_name_label); |
254 | tcd->trace_name_entry = gtk_entry_new(); |
255 | gtk_entry_set_text(GTK_ENTRY(tcd->trace_name_entry),"trace"); |
256 | gtk_widget_show (tcd->trace_name_entry); |
257 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->trace_name_label,0,2,4,5,GTK_FILL,GTK_FILL,2,2); |
258 | 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); |
259 | |
260 | tcd->trace_mode_label = gtk_label_new("Trace mode "); |
261 | gtk_widget_show (tcd->trace_mode_label); |
262 | tcd->trace_mode_combo = gtk_combo_box_new_text(); |
263 | gtk_combo_box_append_text(GTK_COMBO_BOX(tcd->trace_mode_combo), |
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264 | "normal"); |
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265 | gtk_combo_box_append_text(GTK_COMBO_BOX(tcd->trace_mode_combo), |
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266 | "flight recorder"); |
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267 | gtk_combo_box_set_active(GTK_COMBO_BOX(tcd->trace_mode_combo), 0); |
268 | gtk_widget_show (tcd->trace_mode_combo); |
269 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->trace_mode_label,0,2,5,6,GTK_FILL,GTK_FILL,2,2); |
270 | 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); |
271 | |
272 | tcd->start_daemon_label = gtk_label_new("Start daemon "); |
273 | gtk_widget_show (tcd->start_daemon_label); |
274 | tcd->start_daemon_check = gtk_check_button_new(); |
275 | gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tcd->start_daemon_check), TRUE); |
276 | gtk_widget_show (tcd->start_daemon_check); |
277 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->start_daemon_label,0,2,6,7,GTK_FILL,GTK_FILL,2,2); |
278 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->start_daemon_check,2,6,6,7,GTK_FILL,GTK_FILL,0,0); |
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279 | |
280 | tcd->append_label = gtk_label_new("Append to trace "); |
281 | gtk_widget_show (tcd->append_label); |
282 | tcd->append_check = gtk_check_button_new(); |
283 | gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tcd->append_check), FALSE); |
284 | gtk_widget_show (tcd->append_check); |
285 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->append_label,0,2,7,8,GTK_FILL,GTK_FILL,2,2); |
286 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->append_check,2,6,7,8,GTK_FILL,GTK_FILL,0,0); |
287 | |
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288 | |
289 | tcd->optional_label = gtk_label_new("Optional fields "); |
290 | gtk_widget_show (tcd->optional_label); |
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291 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->optional_label,0,6,8,9,GTK_FILL,GTK_FILL,2,2); |
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292 | |
293 | tcd->subbuf_size_label = gtk_label_new("Subbuffer size:"); |
294 | gtk_widget_show (tcd->subbuf_size_label); |
295 | tcd->subbuf_size_entry = gtk_entry_new(); |
296 | gtk_widget_show (tcd->subbuf_size_entry); |
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297 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->subbuf_size_label,0,2,9,10,GTK_FILL,GTK_FILL,2,2); |
298 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->subbuf_size_entry,2,6,9,10,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
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299 | |
300 | tcd->subbuf_num_label = gtk_label_new("Number of subbuffers:"); |
301 | gtk_widget_show (tcd->subbuf_num_label); |
302 | tcd->subbuf_num_entry = gtk_entry_new(); |
303 | gtk_widget_show (tcd->subbuf_num_entry); |
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304 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->subbuf_num_label,0,2,10,11,GTK_FILL,GTK_FILL,2,2); |
305 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->subbuf_num_entry,2,6,10,11,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
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306 | |
307 | tcd->lttctl_path_label = gtk_label_new("path to lttctl:"); |
308 | gtk_widget_show (tcd->lttctl_path_label); |
309 | tcd->lttctl_path_entry = gtk_entry_new(); |
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310 | gtk_entry_set_text(GTK_ENTRY(tcd->lttctl_path_entry),PACKAGE_BIN_DIR "/lttctl"); |
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311 | gtk_widget_show (tcd->lttctl_path_entry); |
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312 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->lttctl_path_label,0,2,11,12,GTK_FILL,GTK_FILL,2,2); |
313 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->lttctl_path_entry,2,6,11,12,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
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314 | |
315 | |
316 | tcd->lttd_path_label = gtk_label_new("path to lttd:"); |
317 | gtk_widget_show (tcd->lttd_path_label); |
318 | tcd->lttd_path_entry = gtk_entry_new(); |
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319 | gtk_entry_set_text(GTK_ENTRY(tcd->lttd_path_entry),PACKAGE_BIN_DIR "/lttd"); |
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320 | gtk_widget_show (tcd->lttd_path_entry); |
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321 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->lttd_path_label,0,2,12,13,GTK_FILL,GTK_FILL,2,2); |
322 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->lttd_path_entry,2,6,12,13,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
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323 | |
324 | |
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325 | tcd->fac_path_label = gtk_label_new("path to facilities:"); |
326 | gtk_widget_show (tcd->fac_path_label); |
327 | tcd->fac_path_entry = gtk_entry_new(); |
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328 | gtk_entry_set_text(GTK_ENTRY(tcd->fac_path_entry),PACKAGE_DATA_DIR "/" PACKAGE "/facilities"); |
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329 | gtk_widget_set_size_request(tcd->fac_path_entry, 250, -1); |
330 | gtk_widget_show (tcd->fac_path_entry); |
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331 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->fac_path_label,0,2,13,14,GTK_FILL,GTK_FILL,2,2); |
332 | gtk_table_attach( GTK_TABLE(tcd->main_box),tcd->fac_path_entry,2,6,13,14,GTK_FILL|GTK_EXPAND|GTK_SHRINK,GTK_FILL,0,0); |
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333 | |
334 | focus_chain = g_list_append (focus_chain, tcd->username_entry); |
335 | focus_chain = g_list_append (focus_chain, tcd->password_entry); |
336 | focus_chain = g_list_append (focus_chain, tcd->start_button); |
337 | focus_chain = g_list_append (focus_chain, tcd->pause_button); |
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338 | focus_chain = g_list_append (focus_chain, tcd->unpause_button); |
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339 | focus_chain = g_list_append (focus_chain, tcd->stop_button); |
340 | focus_chain = g_list_append (focus_chain, tcd->channel_dir_entry); |
341 | focus_chain = g_list_append (focus_chain, tcd->trace_dir_entry); |
342 | focus_chain = g_list_append (focus_chain, tcd->trace_name_entry); |
343 | focus_chain = g_list_append (focus_chain, tcd->trace_mode_combo); |
344 | focus_chain = g_list_append (focus_chain, tcd->start_daemon_check); |
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345 | focus_chain = g_list_append (focus_chain, tcd->append_check); |
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346 | focus_chain = g_list_append (focus_chain, tcd->subbuf_size_entry); |
347 | focus_chain = g_list_append (focus_chain, tcd->subbuf_num_entry); |
348 | focus_chain = g_list_append (focus_chain, tcd->lttctl_path_entry); |
349 | focus_chain = g_list_append (focus_chain, tcd->lttd_path_entry); |
350 | focus_chain = g_list_append (focus_chain, tcd->fac_path_entry); |
351 | |
352 | gtk_container_set_focus_chain(GTK_CONTAINER(tcd->main_box), focus_chain); |
353 | |
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354 | g_signal_connect(G_OBJECT(tcd->start_button), "clicked", |
355 | (GCallback)start_clicked, tcd); |
356 | g_signal_connect(G_OBJECT(tcd->pause_button), "clicked", |
357 | (GCallback)pause_clicked, tcd); |
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358 | g_signal_connect(G_OBJECT(tcd->unpause_button), "clicked", |
359 | (GCallback)unpause_clicked, tcd); |
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360 | g_signal_connect(G_OBJECT(tcd->stop_button), "clicked", |
361 | (GCallback)stop_clicked, tcd); |
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362 | |
363 | /* |
364 | * show main container |
365 | */ |
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366 | gtk_widget_show(tcd->main_box); |
367 | gtk_widget_show(tcd->window); |
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368 | |
369 | |
370 | g_object_set_data_full( |
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371 | G_OBJECT(guicontrol_get_widget(tcd)), |
372 | "control_viewer_data", |
e7c8534e |
373 | tcd, |
374 | (GDestroyNotify)gui_control_destructor); |
375 | |
376 | g_control_list = g_slist_append( |
377 | g_control_list, |
378 | tcd); |
379 | |
380 | return tcd; |
381 | } |
382 | |
383 | |
384 | /** |
385 | * @fn void gui_control_destructor(ControlData*) |
386 | * |
387 | * Destructor for the filter gui module |
388 | * @param tcd The module structure |
389 | */ |
390 | void |
391 | gui_control_destructor(ControlData *tcd) |
392 | { |
393 | Tab *tab = tcd->tab; |
394 | |
395 | /* May already been done by GTK window closing */ |
77ef407f |
396 | if(GTK_IS_WIDGET(guicontrol_get_widget(tcd))){ |
e7c8534e |
397 | g_info("widget still exists"); |
398 | } |
399 | // if(tab != NULL) { |
400 | // lttvwindow_unregister_traceset_notify(tcd->tab, |
401 | // filter_traceset_changed, |
402 | // filter_viewer_data); |
403 | // } |
404 | lttvwindowtraces_background_notify_remove(tcd); |
405 | |
406 | g_control_list = g_slist_remove(g_control_list, tcd); |
407 | |
408 | g_free(tcd); |
409 | } |
410 | |
45653836 |
411 | static void execute_command(const gchar *command, const gchar *username, |
412 | const gchar *password, const gchar *lttd_path, const gchar *fac_path) |
77ef407f |
413 | { |
ff430216 |
414 | pid_t pid; |
415 | int fdpty; |
416 | pid = forkpty(&fdpty, NULL, NULL, NULL); |
77ef407f |
417 | |
418 | if(pid > 0) { |
419 | /* parent */ |
ff430216 |
420 | gchar buf[256]; |
421 | int status; |
422 | ssize_t count; |
423 | /* discuss with su */ |
424 | struct timeval timeout; |
425 | timeout.tv_sec = 1; |
426 | timeout.tv_usec = 0; |
ff430216 |
427 | |
86a65fdb |
428 | struct pollfd pollfd; |
429 | int num_rdy; |
430 | int num_hup = 0; |
431 | |
432 | |
433 | /* Read the output from the child terminal before the prompt. If no data in |
434 | * 200 ms, we stop reading to give the password */ |
435 | g_info("Reading from child console..."); |
436 | while(1) { |
437 | pollfd.fd = fdpty; |
438 | pollfd.events = POLLIN|POLLPRI; |
439 | |
440 | num_rdy = poll(&pollfd, 1, 200); |
441 | #if 0 |
442 | if(num_rdy == -1) { |
443 | perror("Poll error"); |
444 | goto wait_child; |
445 | } |
446 | #endif //0 |
447 | |
448 | /* Timeout : stop waiting for chars */ |
449 | if(num_rdy == 0) break; |
450 | |
451 | switch(pollfd.revents) { |
452 | case POLLERR: |
453 | g_warning("Error returned in polling fd\n"); |
454 | num_hup++; |
455 | break; |
456 | case POLLHUP: |
457 | g_info("Polling FD : hung up."); |
458 | num_hup++; |
459 | break; |
460 | case POLLNVAL: |
461 | g_warning("Polling fd tells it is not open"); |
462 | num_hup++; |
463 | break; |
464 | case POLLPRI: |
465 | case POLLIN: |
466 | count = read (fdpty, buf, 256); |
467 | if(count > 0) { |
468 | buf[count] = '\0'; |
469 | printf("%s", buf); |
470 | } else if(count == -1) { |
471 | perror("Error in read"); |
472 | goto wait_child; |
473 | } |
474 | break; |
475 | } |
476 | if(num_hup > 0) { |
477 | g_warning("Child hung up too fast"); |
478 | goto wait_child; |
479 | } |
480 | } |
481 | |
482 | /* Write the password */ |
ff430216 |
483 | g_info("Got su prompt, now writing password..."); |
ff430216 |
484 | int ret; |
485 | ret = write(fdpty, password, strlen(password)); |
486 | if(ret < 0) perror("Error in write"); |
487 | ret = write(fdpty, "\n", 1); |
488 | if(ret < 0) perror("Error in write"); |
489 | fsync(fdpty); |
490 | |
86a65fdb |
491 | /* Take the output from the terminal and show it on the real console */ |
492 | g_info("Getting data from child terminal..."); |
493 | while(1) { |
494 | int num_hup = 0; |
495 | pollfd.fd = fdpty; |
496 | pollfd.events = POLLIN|POLLPRI; |
497 | |
498 | num_rdy = poll(&pollfd, 1, -1); |
499 | #if 0 |
500 | if(num_rdy == -1) { |
501 | perror("Poll error"); |
502 | goto wait_child; |
503 | } |
504 | #endif //0 |
505 | if(num_rdy == 0) break; |
506 | |
507 | switch(pollfd.revents) { |
508 | case POLLERR: |
509 | g_warning("Error returned in polling fd\n"); |
510 | num_hup++; |
511 | break; |
512 | case POLLHUP: |
513 | g_info("Polling FD : hung up."); |
514 | num_hup++; |
515 | break; |
516 | case POLLNVAL: |
517 | g_warning("Polling fd tells it is not open"); |
518 | num_hup++; |
519 | break; |
520 | case POLLPRI: |
521 | case POLLIN: |
522 | count = read (fdpty, buf, 256); |
523 | if(count > 0) { |
524 | buf[count] = '\0'; |
525 | printf("%s", buf); |
526 | } else if(count == -1) { |
527 | perror("Error in read"); |
528 | goto wait_child; |
529 | } |
530 | break; |
ff430216 |
531 | } |
86a65fdb |
532 | if(num_hup > 0) goto wait_child; |
533 | } |
534 | wait_child: |
535 | g_info("Waiting for child exit..."); |
536 | |
537 | ret = waitpid(pid, &status, 0); |
ff430216 |
538 | |
86a65fdb |
539 | if(WIFEXITED(ret)) |
540 | if(WEXITSTATUS(ret) != 0) |
541 | g_warning("An error occured in the su command : %s", |
542 | strerror(WEXITSTATUS(ret))); |
77ef407f |
543 | |
86a65fdb |
544 | g_info("Child exited."); |
77ef407f |
545 | |
546 | } else if(pid == 0) { |
f6f6abf0 |
547 | /* Setup environment variables */ |
77ef407f |
548 | if(strcmp(lttd_path, "") != 0) |
549 | setenv("LTT_DAEMON", lttd_path, 1); |
550 | if(strcmp(fac_path, "") != 0) |
551 | setenv("LTT_FACILITIES", fac_path, 1); |
f6f6abf0 |
552 | |
45653836 |
553 | g_message("Executing (as %s) : %s\n", username, command); |
ff430216 |
554 | |
45653836 |
555 | execlp("su", "su", "-p", "-c", command, username, NULL); |
556 | exit(-1); /* not supposed to happen! */ |
557 | |
558 | //gint ret = execvp(); |
559 | |
560 | } else { |
561 | /* error */ |
562 | g_warning("Error happened when forking for su"); |
563 | } |
86a65fdb |
564 | |
45653836 |
565 | } |
86a65fdb |
566 | |
86a65fdb |
567 | |
45653836 |
568 | /* Callbacks */ |
f6f6abf0 |
569 | |
45653836 |
570 | void start_clicked (GtkButton *button, gpointer user_data) |
571 | { |
572 | ControlData *tcd = (ControlData*)user_data; |
f6f6abf0 |
573 | |
45653836 |
574 | const gchar *username = gtk_entry_get_text(GTK_ENTRY(tcd->username_entry)); |
575 | const gchar *password = gtk_entry_get_text(GTK_ENTRY(tcd->password_entry)); |
576 | const gchar *channel_dir = |
577 | gtk_entry_get_text(GTK_ENTRY(tcd->channel_dir_entry)); |
578 | const gchar *trace_dir = gtk_entry_get_text(GTK_ENTRY(tcd->trace_dir_entry)); |
579 | const gchar *trace_name = |
580 | gtk_entry_get_text(GTK_ENTRY(tcd->trace_name_entry)); |
581 | |
582 | const gchar *trace_mode_sel = |
583 | gtk_combo_box_get_active_text(GTK_COMBO_BOX(tcd->trace_mode_combo)); |
584 | const gchar *trace_mode; |
585 | if(strcmp(trace_mode_sel, "normal") == 0) |
586 | trace_mode = "normal"; |
587 | else |
588 | trace_mode = "flight"; |
589 | |
590 | gboolean start_daemon = |
591 | gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tcd->start_daemon_check)); |
f6f6abf0 |
592 | |
45653836 |
593 | gboolean append = |
594 | gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tcd->append_check)); |
595 | |
596 | const gchar *subbuf_size = |
597 | gtk_entry_get_text(GTK_ENTRY(tcd->subbuf_size_entry)); |
598 | const gchar *subbuf_num = |
599 | gtk_entry_get_text(GTK_ENTRY(tcd->subbuf_num_entry)); |
600 | const gchar *lttctl_path = |
601 | gtk_entry_get_text(GTK_ENTRY(tcd->lttctl_path_entry)); |
602 | const gchar *lttd_path = gtk_entry_get_text(GTK_ENTRY(tcd->lttd_path_entry)); |
603 | const gchar *fac_path = gtk_entry_get_text(GTK_ENTRY(tcd->fac_path_entry)); |
604 | |
605 | |
606 | /* Setup arguments to su */ |
607 | /* child */ |
608 | gchar args[MAX_ARGS_LEN]; |
609 | gint args_left = MAX_ARGS_LEN - 1; /* for \0 */ |
610 | |
611 | args[0] = '\0'; |
612 | |
613 | /* Command */ |
614 | strncat(args, "exec", args_left); |
615 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
616 | |
617 | /* space */ |
618 | strncat(args, " ", args_left); |
619 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
620 | |
621 | if(strcmp(lttctl_path, "") == 0) |
622 | strncat(args, "lttctl", args_left); |
623 | else |
624 | strncat(args, lttctl_path, args_left); |
625 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
626 | |
627 | /* space */ |
628 | strncat(args, " ", args_left); |
629 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
630 | |
631 | /* channel dir */ |
632 | strncat(args, "-l ", args_left); |
633 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
634 | strncat(args, channel_dir, args_left); |
635 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
636 | |
637 | /* space */ |
638 | strncat(args, " ", args_left); |
639 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
640 | |
641 | /* trace dir */ |
642 | strncat(args, "-t ", args_left); |
643 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
644 | strncat(args, trace_dir, args_left); |
645 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
646 | |
647 | /* space */ |
648 | strncat(args, " ", args_left); |
649 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
650 | |
651 | /* name */ |
652 | strncat(args, "-n ", args_left); |
653 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
654 | strncat(args, trace_name, args_left); |
655 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
656 | |
657 | /* space */ |
658 | strncat(args, " ", args_left); |
659 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
660 | |
661 | /* trace mode */ |
662 | strncat(args, "-m ", args_left); |
663 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
664 | strncat(args, trace_mode, args_left); |
665 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
666 | |
667 | /* space */ |
668 | strncat(args, " ", args_left); |
669 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
670 | |
671 | /* Start daemon ? */ |
672 | if(start_daemon) { |
673 | strncat(args, "-d", args_left); |
f6f6abf0 |
674 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
45653836 |
675 | } else { |
676 | /* Simply create the channel and then start tracing */ |
677 | strncat(args, "-b", args_left); |
f6f6abf0 |
678 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
45653836 |
679 | } |
680 | |
f6f6abf0 |
681 | |
45653836 |
682 | /* Append to trace ? */ |
683 | if(append) { |
f6f6abf0 |
684 | /* space */ |
685 | strncat(args, " ", args_left); |
686 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
45653836 |
687 | strncat(args, "-a", args_left); |
f6f6abf0 |
688 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
45653836 |
689 | } |
690 | |
691 | /* optional arguments */ |
692 | /* subbuffer size */ |
693 | if(strcmp(subbuf_size, "") != 0) { |
f6f6abf0 |
694 | /* space */ |
695 | strncat(args, " ", args_left); |
696 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
697 | |
45653836 |
698 | strncat(args, "-z ", args_left); |
f6f6abf0 |
699 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
45653836 |
700 | strncat(args, subbuf_size, args_left); |
f6f6abf0 |
701 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
45653836 |
702 | } |
f6f6abf0 |
703 | |
45653836 |
704 | /* number of subbuffers */ |
705 | if(strcmp(subbuf_num, "") != 0) { |
f6f6abf0 |
706 | /* space */ |
707 | strncat(args, " ", args_left); |
708 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
709 | |
45653836 |
710 | strncat(args, "-x ", args_left); |
711 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
712 | strncat(args, subbuf_num, args_left); |
713 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
714 | } |
ff430216 |
715 | |
77ef407f |
716 | |
45653836 |
717 | execute_command(args, username, password, lttd_path, fac_path); |
718 | |
77ef407f |
719 | |
720 | } |
721 | |
722 | |
723 | void pause_clicked (GtkButton *button, gpointer user_data) |
724 | { |
725 | ControlData *tcd = (ControlData*)user_data; |
726 | |
45653836 |
727 | const gchar *username = gtk_entry_get_text(GTK_ENTRY(tcd->username_entry)); |
728 | const gchar *password = gtk_entry_get_text(GTK_ENTRY(tcd->password_entry)); |
729 | const gchar *trace_name = |
730 | gtk_entry_get_text(GTK_ENTRY(tcd->trace_name_entry)); |
731 | const gchar *lttd_path = ""; |
732 | const gchar *fac_path = ""; |
733 | |
734 | const gchar *lttctl_path = |
735 | gtk_entry_get_text(GTK_ENTRY(tcd->lttctl_path_entry)); |
77ef407f |
736 | |
45653836 |
737 | /* Setup arguments to su */ |
738 | /* child */ |
739 | gchar args[MAX_ARGS_LEN]; |
740 | gint args_left = MAX_ARGS_LEN - 1; /* for \0 */ |
741 | |
742 | args[0] = '\0'; |
743 | |
744 | /* Command */ |
745 | strncat(args, "exec", args_left); |
746 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
747 | |
748 | /* space */ |
749 | strncat(args, " ", args_left); |
750 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
751 | |
752 | if(strcmp(lttctl_path, "") == 0) |
753 | strncat(args, "lttctl", args_left); |
754 | else |
755 | strncat(args, lttctl_path, args_left); |
756 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
757 | |
758 | /* space */ |
759 | strncat(args, " ", args_left); |
760 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
761 | |
762 | /* name */ |
763 | strncat(args, "-n ", args_left); |
764 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
765 | strncat(args, trace_name, args_left); |
766 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
767 | |
768 | /* space */ |
769 | strncat(args, " ", args_left); |
770 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
771 | |
772 | /* Simply pause tracing */ |
773 | strncat(args, "-q", args_left); |
774 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
775 | |
776 | execute_command(args, username, password, lttd_path, fac_path); |
777 | |
778 | } |
779 | |
780 | void unpause_clicked (GtkButton *button, gpointer user_data) |
781 | { |
782 | ControlData *tcd = (ControlData*)user_data; |
783 | |
784 | const gchar *username = gtk_entry_get_text(GTK_ENTRY(tcd->username_entry)); |
785 | const gchar *password = gtk_entry_get_text(GTK_ENTRY(tcd->password_entry)); |
786 | const gchar *trace_name = |
787 | gtk_entry_get_text(GTK_ENTRY(tcd->trace_name_entry)); |
788 | const gchar *lttd_path = ""; |
789 | const gchar *fac_path = ""; |
790 | |
791 | const gchar *lttctl_path = |
792 | gtk_entry_get_text(GTK_ENTRY(tcd->lttctl_path_entry)); |
793 | |
794 | /* Setup arguments to su */ |
795 | /* child */ |
796 | gchar args[MAX_ARGS_LEN]; |
797 | gint args_left = MAX_ARGS_LEN - 1; /* for \0 */ |
798 | |
799 | args[0] = '\0'; |
800 | |
801 | /* Command */ |
802 | strncat(args, "exec", args_left); |
803 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
804 | |
805 | /* space */ |
806 | strncat(args, " ", args_left); |
807 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
808 | |
809 | if(strcmp(lttctl_path, "") == 0) |
810 | strncat(args, "lttctl", args_left); |
811 | else |
812 | strncat(args, lttctl_path, args_left); |
813 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
814 | |
815 | /* space */ |
816 | strncat(args, " ", args_left); |
817 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
818 | |
819 | /* name */ |
820 | strncat(args, "-n ", args_left); |
821 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
822 | strncat(args, trace_name, args_left); |
823 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
824 | |
825 | /* space */ |
826 | strncat(args, " ", args_left); |
827 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
828 | |
829 | /* Simply unpause tracing */ |
830 | strncat(args, "-s", args_left); |
831 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
832 | |
833 | execute_command(args, username, password, lttd_path, fac_path); |
77ef407f |
834 | } |
835 | |
836 | void stop_clicked (GtkButton *button, gpointer user_data) |
837 | { |
838 | ControlData *tcd = (ControlData*)user_data; |
839 | |
45653836 |
840 | const gchar *username = gtk_entry_get_text(GTK_ENTRY(tcd->username_entry)); |
841 | const gchar *password = gtk_entry_get_text(GTK_ENTRY(tcd->password_entry)); |
842 | const gchar *trace_name = |
843 | gtk_entry_get_text(GTK_ENTRY(tcd->trace_name_entry)); |
844 | const gchar *lttd_path = ""; |
845 | const gchar *fac_path = ""; |
846 | |
847 | const gchar *lttctl_path = |
848 | gtk_entry_get_text(GTK_ENTRY(tcd->lttctl_path_entry)); |
849 | |
850 | /* Setup arguments to su */ |
851 | /* child */ |
852 | gchar args[MAX_ARGS_LEN]; |
853 | gint args_left = MAX_ARGS_LEN - 1; /* for \0 */ |
854 | |
855 | args[0] = '\0'; |
856 | |
857 | /* Command */ |
858 | strncat(args, "exec", args_left); |
859 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
860 | |
861 | /* space */ |
862 | strncat(args, " ", args_left); |
863 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
864 | |
865 | if(strcmp(lttctl_path, "") == 0) |
866 | strncat(args, "lttctl", args_left); |
867 | else |
868 | strncat(args, lttctl_path, args_left); |
869 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
870 | |
871 | /* space */ |
872 | strncat(args, " ", args_left); |
873 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
874 | |
875 | /* name */ |
876 | strncat(args, "-n ", args_left); |
877 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
878 | strncat(args, trace_name, args_left); |
879 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
880 | |
881 | /* space */ |
882 | strncat(args, " ", args_left); |
883 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
884 | |
885 | /* Simply stop tracing and destroy channel */ |
886 | strncat(args, "-R", args_left); |
887 | args_left = MAX_ARGS_LEN - strlen(args) - 1; |
888 | |
889 | execute_command(args, username, password, lttd_path, fac_path); |
890 | |
77ef407f |
891 | |
892 | } |
893 | |
e7c8534e |
894 | |
895 | /** |
896 | * @fn GtkWidget* h_guicontrol(Tab*) |
897 | * |
898 | * Control Module's constructor hook |
899 | * |
900 | * This constructor is given as a parameter to the menuitem and toolbar button |
901 | * registration. It creates the list. |
902 | * @param tab A pointer to the parent window. |
903 | * @return The widget created. |
904 | */ |
905 | GtkWidget * |
906 | h_guicontrol(Tab *tab) |
907 | { |
908 | ControlData* f = gui_control(tab) ; |
909 | |
910 | return NULL; |
911 | } |
912 | |
913 | /** |
914 | * @fn static void init() |
915 | * |
916 | * This function initializes the Filter Viewer functionnality through the |
917 | * gtkTraceSet API. |
918 | */ |
919 | static void init() { |
920 | |
921 | lttvwindow_register_constructor("guicontrol", |
922 | "/", |
923 | "Insert Tracing Control Module", |
924 | hTraceControlInsert_xpm, |
925 | "Insert Tracing Control Module", |
926 | h_guicontrol); |
927 | } |
928 | |
929 | /** |
930 | * @fn void control_destroy_walk(gpointer,gpointer) |
931 | * |
932 | * Initiate the destruction of the current gui module |
933 | * on the GTK Interface |
934 | */ |
935 | void |
936 | control_destroy_walk(gpointer data, gpointer user_data) |
937 | { |
938 | ControlData *tcd = (ControlData*)data; |
939 | |
940 | g_debug("traceontrol.c : control_destroy_walk, %p", tcd); |
941 | |
942 | /* May already have been done by GTK window closing */ |
943 | if(GTK_IS_WIDGET(guicontrol_get_widget(tcd))) |
944 | gtk_widget_destroy(guicontrol_get_widget(tcd)); |
945 | } |
946 | |
947 | /** |
948 | * @fn static void destroy() |
949 | * @brief plugin's destroy function |
950 | * |
951 | * This function releases the memory reserved by the module and unregisters |
952 | * everything that has been registered in the gtkTraceSet API. |
953 | */ |
954 | static void destroy() { |
955 | |
956 | g_slist_foreach(g_control_list, control_destroy_walk, NULL ); |
957 | |
958 | lttvwindow_unregister_constructor(h_guicontrol); |
959 | |
960 | } |
961 | |
962 | |
963 | LTTV_MODULE("guitracecontrol", "Trace Control Window", \ |
964 | "Graphical module that let user control kernel tracing", \ |
965 | init, destroy, "lttvwindow") |
966 | |