X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=blobdiff_plain;f=ui%2Fncurses%2Fnc-config.c;h=6aecb33cfb07622641e040f62f6408df5fcfedc6;hp=00fe72c30b835a01ef5fd4adb2029f4688460c05;hb=c1359507c1556ba5f6d2afd0e401abcfe66f02a9;hpb=9df37efcae13a272b25cc5b4e0ba441948fea886

diff --git a/ui/ncurses/nc-config.c b/ui/ncurses/nc-config.c
index 00fe72c..6aecb33 100644
--- a/ui/ncurses/nc-config.c
+++ b/ui/ncurses/nc-config.c
@@ -15,7 +15,9 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#define _GNU_SOURCE
+#if defined(HAVE_CONFIG_H)
+#include "config.h"
+#endif
 
 #include <errno.h>
 #include <stdlib.h>
@@ -26,12 +28,13 @@
 #include <types/types.h>
 #include <log/log.h>
 
-#include "config.h"
 #include "nc-cui.h"
 #include "nc-config.h"
 #include "nc-widgets.h"
 
-#define N_FIELDS	19
+#define N_FIELDS	24
+
+extern const char *config_help_text;
 
 enum net_conf_type {
 	NET_CONF_TYPE_DHCP_ALL,
@@ -43,9 +46,14 @@ struct config_screen {
 	struct nc_scr		scr;
 	struct cui		*cui;
 	struct nc_widgetset	*widgetset;
+	WINDOW			*pad;
+
 	bool			exit;
+	bool			show_help;
 	void			(*on_exit)(struct cui *);
 
+	int			scroll_y;
+
 	int			label_x;
 	int			field_x;
 	int			network_config_y;
@@ -57,6 +65,7 @@ struct config_screen {
 		struct nc_widget_label		*autoboot_l;
 		struct nc_widget_textbox	*timeout_f;
 		struct nc_widget_label		*timeout_l;
+		struct nc_widget_label		*timeout_help_l;
 
 		struct nc_widget_label		*network_l;
 		struct nc_widget_select		*network_f;
@@ -67,13 +76,17 @@ struct config_screen {
 		struct nc_widget_textbox	*ip_addr_f;
 		struct nc_widget_label		*ip_mask_l;
 		struct nc_widget_textbox	*ip_mask_f;
+		struct nc_widget_label		*ip_addr_mask_help_l;
 		struct nc_widget_label		*gateway_l;
 		struct nc_widget_textbox	*gateway_f;
+		struct nc_widget_label		*gateway_help_l;
 		struct nc_widget_label		*dns_l;
 		struct nc_widget_textbox	*dns_f;
+		struct nc_widget_label		*dns_dhcp_help_l;
 		struct nc_widget_label		*dns_help_l;
 
 		struct nc_widget_button		*ok_b;
+		struct nc_widget_button		*help_b;
 		struct nc_widget_button		*cancel_b;
 	} widgets;
 };
@@ -89,16 +102,46 @@ static struct config_screen *config_screen_from_scr(struct nc_scr *scr)
 	return config_screen;
 }
 
+static void pad_refresh(struct config_screen *screen)
+{
+	int y, x, rows, cols;
+
+	getmaxyx(screen->scr.sub_ncw, rows, cols);
+	getbegyx(screen->scr.sub_ncw, y, x);
+
+	prefresh(screen->pad, screen->scroll_y, 0, y, x, rows, cols);
+}
+
 static void config_screen_process_key(struct nc_scr *scr, int key)
 {
 	struct config_screen *screen = config_screen_from_scr(scr);
 	bool handled;
 
 	handled = widgetset_process_key(screen->widgetset, key);
-	if (screen->exit)
+
+	if (!handled) {
+		switch (key) {
+		case 'x':
+		case 27: /* esc */
+			screen->exit = true;
+			break;
+		case 'h':
+			screen->show_help = true;
+			break;
+		}
+	}
+
+	if (screen->exit) {
 		screen->on_exit(screen->cui);
-	else if (handled)
-		wrefresh(screen->scr.main_ncw);
+
+	} else if (screen->show_help) {
+		screen->show_help = false;
+		cui_show_help(screen->cui, "System Configuration",
+				config_help_text);
+
+	} else if (handled) {
+		pad_refresh(screen);
+	}
 }
 
 static void config_screen_resize(struct nc_scr *scr)
@@ -112,7 +155,9 @@ static int config_screen_post(struct nc_scr *scr)
 	struct config_screen *screen = config_screen_from_scr(scr);
 	widgetset_post(screen->widgetset);
 	nc_scr_frame_draw(scr);
-	wrefresh(scr->main_ncw);
+	redrawwin(scr->main_ncw);
+	wrefresh(screen->scr.main_ncw);
+	pad_refresh(screen);
 	return 0;
 }
 
@@ -131,13 +176,13 @@ struct nc_scr *config_screen_scr(struct config_screen *screen)
 static int screen_process_form(struct config_screen *screen)
 {
 	const struct system_info *sysinfo = screen->cui->sysinfo;
-	struct config *config = talloc_zero(screen, struct config);
 	enum net_conf_type net_conf_type;
 	struct interface_config *iface;
+	struct config *config;
 	char *str, *end;
 	int rc;
 
-	config_set_defaults(config);
+	config = config_copy(screen, screen->cui->config);
 
 	config->autoboot_enabled =
 		widget_checkbox_get_value(screen->widgets.autoboot_f);
@@ -183,18 +228,31 @@ static int screen_process_form(struct config_screen *screen)
 	}
 
 	if (net_conf_type == NET_CONF_TYPE_STATIC) {
+		char *ip, *mask, *gateway;
+
+		ip = widget_textbox_get_value(screen->widgets.ip_addr_f);
+		mask = widget_textbox_get_value(screen->widgets.ip_mask_f);
+		gateway = widget_textbox_get_value(screen->widgets.gateway_f);
+
+		if (!ip || !*ip || !mask || !*mask) {
+			screen->scr.frame.status =
+				"No IP / mask values are set";
+			nc_scr_frame_draw(&screen->scr);
+			talloc_free(config);
+			return -1;
+		}
+
 		iface->method = CONFIG_METHOD_STATIC;
 		iface->static_config.address = talloc_asprintf(iface, "%s/%s",
-				widget_textbox_get_value(
-					screen->widgets.ip_addr_f),
-				widget_textbox_get_value(
-					screen->widgets.ip_mask_f));
-		iface->static_config.gateway = talloc_strdup(iface,
-				widget_textbox_get_value(
-					screen->widgets.gateway_f));
+				ip, mask);
+		iface->static_config.gateway = talloc_strdup(iface, gateway);
 	}
 
 	str = widget_textbox_get_value(screen->widgets.dns_f);
+	talloc_free(config->network.dns_servers);
+	config->network.dns_servers = NULL;
+	config->network.n_dns_servers = 0;
+
 	if (str && strlen(str)) {
 		char *dns, *tmp;
 		int i;
@@ -231,8 +289,18 @@ static int screen_process_form(struct config_screen *screen)
 static void ok_click(void *arg)
 {
 	struct config_screen *screen = arg;
-	screen_process_form(screen);
-	screen->exit = true;
+	if (screen_process_form(screen))
+		/* errors are written to the status line, so we'll need
+		 * to refresh */
+		wrefresh(screen->scr.main_ncw);
+	else
+		screen->exit = true;
+}
+
+static void help_click(void *arg)
+{
+	struct config_screen *screen = arg;
+	screen->show_help = true;
 }
 
 static void cancel_click(void *arg)
@@ -251,22 +319,27 @@ static int layout_pair(struct config_screen *screen, int y,
 	return max(widget_height(label_w), widget_height(field));
 }
 
-static void config_screen_layout_widgets(struct config_screen *screen,
-		enum net_conf_type net_conf)
+static void config_screen_layout_widgets(struct config_screen *screen)
 {
-	struct nc_widget *wl, *wf;
+	struct nc_widget *wl, *wf, *wh;
+	int y, x, help_x;
 	bool show;
-	int y, x;
 
 	y = 1;
+	help_x = screen->field_x + 2 +
+		widget_width(widget_textbox_base(screen->widgets.dns_f));
 
 	y += layout_pair(screen, y, screen->widgets.autoboot_l,
 			widget_checkbox_base(screen->widgets.autoboot_f));
 
-	y += layout_pair(screen, y, screen->widgets.timeout_l,
-			widget_textbox_base(screen->widgets.timeout_f));
+	wf = widget_textbox_base(screen->widgets.timeout_f);
+	widget_move(widget_label_base(screen->widgets.timeout_l),
+			y, screen->label_x);
+	widget_move(wf, y, screen->field_x);
+	widget_move(widget_label_base(screen->widgets.timeout_help_l),
+			y, screen->field_x + widget_width(wf) + 1);
 
-	y += 1;
+	y += 2;
 
 	y += layout_pair(screen, y, screen->widgets.network_l,
 			widget_select_base(screen->widgets.network_f));
@@ -277,8 +350,8 @@ static void config_screen_layout_widgets(struct config_screen *screen,
 	wl = widget_label_base(screen->widgets.iface_l);
 	wf = widget_select_base(screen->widgets.iface_f);
 
-	show = net_conf == NET_CONF_TYPE_DHCP_ONE ||
-		net_conf == NET_CONF_TYPE_STATIC;
+	show = screen->net_conf_type == NET_CONF_TYPE_DHCP_ONE ||
+		screen->net_conf_type == NET_CONF_TYPE_STATIC;
 
 	widget_set_visible(wl, show);
 	widget_set_visible(wf, show);
@@ -287,7 +360,7 @@ static void config_screen_layout_widgets(struct config_screen *screen,
 		y += layout_pair(screen, y, screen->widgets.iface_l, wf) + 1;
 
 	/* conditionally show static IP params */
-	show = net_conf == NET_CONF_TYPE_STATIC;
+	show = screen->net_conf_type == NET_CONF_TYPE_STATIC;
 
 	wl = widget_label_base(screen->widgets.ip_addr_l);
 	wf = widget_textbox_base(screen->widgets.ip_addr_f);
@@ -306,23 +379,38 @@ static void config_screen_layout_widgets(struct config_screen *screen,
 	if (show) {
 		widget_move(wl, y, x);
 		widget_move(wf, y, x + 2);
-		y += 1;
+	}
+
+	/* help for IP/mask */
+	wh = widget_label_base(screen->widgets.ip_addr_mask_help_l);
+	widget_set_visible(wh, show);
+	if (show) {
+		widget_move(wh, y, help_x);
+		y++;
 	}
 
 	wl = widget_label_base(screen->widgets.gateway_l);
 	wf = widget_textbox_base(screen->widgets.gateway_f);
+	wh = widget_label_base(screen->widgets.gateway_help_l);
 	widget_set_visible(wl, show);
 	widget_set_visible(wf, show);
+	widget_set_visible(wh, show);
 
-	if (show)
-		y += layout_pair(screen, y, screen->widgets.gateway_l, wf) + 1;
+	if (show) {
+		layout_pair(screen, y, screen->widgets.gateway_l, wf);
+		widget_move(wh, y, help_x);
+		y++;
+	}
 
-	y += layout_pair(screen, y, screen->widgets.dns_l,
+	wh = widget_label_base(screen->widgets.dns_help_l);
+	layout_pair(screen, y, screen->widgets.dns_l,
 			widget_textbox_base(screen->widgets.dns_f));
+	widget_move(wh, y, help_x);
+	y++;
 
 	/* we show the DNS/DHCP help if we're configuring DHCP */
-	show = net_conf != NET_CONF_TYPE_STATIC;
-	wl = widget_label_base(screen->widgets.dns_help_l);
+	show = screen->net_conf_type != NET_CONF_TYPE_STATIC;
+	wl = widget_label_base(screen->widgets.dns_dhcp_help_l);
 	widget_set_visible(wl, show);
 	if (show) {
 		widget_move(wl, y, screen->field_x);
@@ -333,8 +421,10 @@ static void config_screen_layout_widgets(struct config_screen *screen,
 
 	widget_move(widget_button_base(screen->widgets.ok_b),
 			y, screen->field_x);
-	widget_move(widget_button_base(screen->widgets.cancel_b),
+	widget_move(widget_button_base(screen->widgets.help_b),
 			y, screen->field_x + 10);
+	widget_move(widget_button_base(screen->widgets.cancel_b),
+			y, screen->field_x + 20);
 }
 
 static void config_screen_network_change(void *arg, int value)
@@ -342,7 +432,7 @@ static void config_screen_network_change(void *arg, int value)
 	struct config_screen *screen = arg;
 	screen->net_conf_type = value;
 	widgetset_unpost(screen->widgetset);
-	config_screen_layout_widgets(screen, value);
+	config_screen_layout_widgets(screen);
 	widgetset_post(screen->widgetset);
 }
 
@@ -378,6 +468,15 @@ static enum net_conf_type find_net_conf_type(const struct config *config)
 	return NET_CONF_TYPE_DHCP_ALL;
 }
 
+static void config_screen_setup_empty(struct config_screen *screen)
+{
+	widget_new_label(screen->widgetset, 2, screen->field_x,
+			"Waiting for configuration data...");
+	screen->widgets.cancel_b = widget_new_button(screen->widgetset,
+			4, screen->field_x, 6, "Cancel", cancel_click, screen);
+}
+
+
 static void config_screen_setup_widgets(struct config_screen *screen,
 		const struct config *config,
 		const struct system_info *sysinfo)
@@ -401,6 +500,10 @@ static void config_screen_setup_widgets(struct config_screen *screen,
 	str = talloc_asprintf(screen, "%d", config->autoboot_timeout_sec);
 	screen->widgets.timeout_l = widget_new_label(set, 0, 0, "Timeout:");
 	screen->widgets.timeout_f = widget_new_textbox(set, 0, 0, 5, str);
+	screen->widgets.timeout_help_l = widget_new_label(set, 0, 0, "seconds");
+
+	widget_textbox_set_fixed_size(screen->widgets.timeout_f);
+	widget_textbox_set_validator_integer(screen->widgets.timeout_f, 0, 999);
 
 	screen->widgets.network_l = widget_new_label(set, 0, 0, "Network");
 	screen->widgets.network_f = widget_new_select(set, 0, 0, 50);
@@ -422,17 +525,22 @@ static void config_screen_setup_widgets(struct config_screen *screen,
 			config_screen_network_change, screen);
 
 	screen->widgets.iface_l = widget_new_label(set, 0, 0, "Device:");
-	screen->widgets.iface_f = widget_new_select(set, 0, 0, 20);
+	screen->widgets.iface_f = widget_new_select(set, 0, 0, 50);
 
 	for (i = 0; i < sysinfo->n_interfaces; i++) {
 		struct interface_info *info = sysinfo->interfaces[i];
+		char str[50], mac[20];
 		bool is_default;
 
 		is_default = ifcfg && !memcmp(ifcfg->hwaddr, info->hwaddr,
 					sizeof(ifcfg->hwaddr));
 
+		mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
+		snprintf(str, sizeof(str), "%s [%s, %s]", info->name, mac,
+				info->link ? "link up" : "link down");
+
 		widget_select_add_option(screen->widgets.iface_f,
-						i, info->name, is_default);
+						i, str, is_default);
 	}
 
 	gw = ip = mask = NULL;
@@ -454,9 +562,21 @@ static void config_screen_setup_widgets(struct config_screen *screen,
 	screen->widgets.ip_addr_f = widget_new_textbox(set, 0, 0, 16, ip);
 	screen->widgets.ip_mask_l = widget_new_label(set, 0, 0, "/");
 	screen->widgets.ip_mask_f = widget_new_textbox(set, 0, 0, 3, mask);
+	screen->widgets.ip_addr_mask_help_l =
+		widget_new_label(set, 0, 0, "(eg. 192.168.0.10 / 24)");
+
+	widget_textbox_set_fixed_size(screen->widgets.ip_addr_f);
+	widget_textbox_set_fixed_size(screen->widgets.ip_mask_f);
+	widget_textbox_set_validator_ipv4(screen->widgets.ip_addr_f);
+	widget_textbox_set_validator_integer(screen->widgets.ip_mask_f, 1, 31);
 
 	screen->widgets.gateway_l = widget_new_label(set, 0, 0, "Gateway:");
 	screen->widgets.gateway_f = widget_new_textbox(set, 0, 0, 16, gw);
+	screen->widgets.gateway_help_l =
+		widget_new_label(set, 0, 0, "(eg. 192.168.0.1)");
+
+	widget_textbox_set_fixed_size(screen->widgets.gateway_f);
+	widget_textbox_set_validator_ipv4(screen->widgets.gateway_f);
 
 	str = talloc_strdup(screen, "");
 	for (i = 0; i < config->network.n_dns_servers; i++) {
@@ -467,16 +587,105 @@ static void config_screen_setup_widgets(struct config_screen *screen,
 
 	screen->widgets.dns_l = widget_new_label(set, 0, 0, "DNS Server(s):");
 	screen->widgets.dns_f = widget_new_textbox(set, 0, 0, 32, str);
+	screen->widgets.dns_help_l =
+		widget_new_label(set, 0, 0, "(eg. 192.168.0.2)");
 
-	screen->widgets.dns_help_l = widget_new_label(set, 0, 0,
+	widget_textbox_set_validator_ipv4_multi(screen->widgets.dns_f);
+
+	screen->widgets.dns_dhcp_help_l = widget_new_label(set, 0, 0,
 			"(if not provided by DHCP server)");
 
 	screen->widgets.ok_b = widget_new_button(set, 0, 0, 6, "OK",
 			ok_click, screen);
+	screen->widgets.help_b = widget_new_button(set, 0, 0, 6, "Help",
+			help_click, screen);
 	screen->widgets.cancel_b = widget_new_button(set, 0, 0, 6, "Cancel",
 			cancel_click, screen);
 }
 
+static void config_screen_widget_focus(struct nc_widget *widget, void *arg)
+{
+	struct config_screen *screen = arg;
+	int w_y, s_max;
+
+	w_y = widget_y(widget) + widget_focus_y(widget);
+	s_max = getmaxy(screen->scr.sub_ncw) - 1;
+
+	if (w_y < screen->scroll_y)
+		screen->scroll_y = w_y;
+
+	else if (w_y + screen->scroll_y + 1 > s_max)
+		screen->scroll_y = 1 + w_y - s_max;
+
+	else
+		return;
+
+	pad_refresh(screen);
+}
+
+static void config_screen_draw(struct config_screen *screen,
+		const struct config *config,
+		const struct system_info *sysinfo)
+{
+	bool repost = false;
+	int height;
+
+	/* The size of the pad we'll need depends on the number of interfaces.
+	 *
+	 * We use N_FIELDS (which is quite conservative, as some fields share
+	 * a line) as a base, then add 3 (as the network select field is
+	 * takes 3 lines), and n_interfaces (as the network interface field
+	 * has n_interfaces lines).
+	 */
+	height = N_FIELDS + 3;
+	if (sysinfo)
+		height += sysinfo->n_interfaces;
+	if (!screen->pad || getmaxy(screen->pad) < height) {
+		if (screen->pad)
+			delwin(screen->pad);
+		screen->pad = newpad(height, COLS);
+	}
+
+	if (screen->widgetset) {
+		widgetset_unpost(screen->widgetset);
+		talloc_free(screen->widgetset);
+		repost = true;
+	}
+
+	screen->widgetset = widgetset_create(screen, screen->scr.main_ncw,
+			screen->pad);
+	widgetset_set_widget_focus(screen->widgetset,
+			config_screen_widget_focus, screen);
+
+	if (!config || !sysinfo) {
+		config_screen_setup_empty(screen);
+	} else {
+		screen->net_conf_type = find_net_conf_type(config);
+
+		config_screen_setup_widgets(screen, config, sysinfo);
+		config_screen_layout_widgets(screen);
+	}
+
+	if (repost)
+		widgetset_post(screen->widgetset);
+}
+
+void config_screen_update(struct config_screen *screen,
+		const struct config *config,
+		const struct system_info *sysinfo)
+{
+	config_screen_draw(screen, config, sysinfo);
+	pad_refresh(screen);
+}
+
+static int config_screen_destroy(void *arg)
+{
+	struct config_screen *screen = arg;
+	if (screen->pad)
+		delwin(screen->pad);
+	return 0;
+}
+
 struct config_screen *config_screen_init(struct cui *cui,
 		const struct config *config,
 		const struct system_info *sysinfo,
@@ -485,6 +694,7 @@ struct config_screen *config_screen_init(struct cui *cui,
 	struct config_screen *screen;
 
 	screen = talloc_zero(cui, struct config_screen);
+	talloc_set_destructor(screen, config_screen_destroy);
 	nc_scr_init(&screen->scr, pb_config_screen_sig, 0,
 			cui, config_screen_process_key,
 			config_screen_post, config_screen_unpost,
@@ -499,18 +709,12 @@ struct config_screen *config_screen_init(struct cui *cui,
 			"Petitboot System Configuration");
 	screen->scr.frame.rtitle = NULL;
 	screen->scr.frame.help = talloc_strdup(screen,
-			"tab=next, shift+tab=previous");
+			"tab=next, shift+tab=previous, x=exit, h=help");
 	nc_scr_frame_draw(&screen->scr);
 
-	screen->widgetset = widgetset_create(screen, screen->scr.main_ncw,
-			screen->scr.sub_ncw);
-	screen->net_conf_type = find_net_conf_type(config);
-
-	config_screen_setup_widgets(screen, config, sysinfo);
-	config_screen_layout_widgets(screen, screen->net_conf_type);
-
-	wrefresh(screen->scr.main_ncw);
 	scrollok(screen->scr.sub_ncw, true);
 
+	config_screen_draw(screen, config, sysinfo);
+
 	return screen;
 }