]> git.ozlabs.org Git - petitboot/blobdiff - ui/ncurses/nc-config.c
ui/ncurses: Add link status to system info & system config screens
[petitboot] / ui / ncurses / nc-config.c
index 0141ba070ab5ab29fbbc7d8fcb8f3aca92b9e009..6c252602a1a58ce16c493de5c624b378719f8615 100644 (file)
@@ -31,7 +31,7 @@
 #include "nc-config.h"
 #include "nc-widgets.h"
 
-#define N_FIELDS       18
+#define N_FIELDS       23
 
 enum net_conf_type {
        NET_CONF_TYPE_DHCP_ALL,
@@ -43,18 +43,25 @@ struct config_screen {
        struct nc_scr           scr;
        struct cui              *cui;
        struct nc_widgetset     *widgetset;
+       WINDOW                  *pad;
+
        bool                    exit;
        void                    (*on_exit)(struct cui *);
 
+       int                     scroll_y;
+
        int                     label_x;
        int                     field_x;
        int                     network_config_y;
 
+       enum net_conf_type      net_conf_type;
+
        struct {
                struct nc_widget_checkbox       *autoboot_f;
                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;
@@ -65,10 +72,14 @@ 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         *cancel_b;
@@ -86,6 +97,16 @@ 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);
@@ -95,7 +116,7 @@ static void config_screen_process_key(struct nc_scr *scr, int key)
        if (screen->exit)
                screen->on_exit(screen->cui);
        else if (handled)
-               wrefresh(screen->scr.main_ncw);
+               pad_refresh(screen);
 }
 
 static void config_screen_resize(struct nc_scr *scr)
@@ -109,7 +130,7 @@ 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);
+       pad_refresh(screen);
        return 0;
 }
 
@@ -251,19 +272,25 @@ static int layout_pair(struct config_screen *screen, int y,
 static void config_screen_layout_widgets(struct config_screen *screen,
                enum net_conf_type net_conf)
 {
-       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));
@@ -303,19 +330,45 @@ 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);
+       if (show) {
+               layout_pair(screen, y, screen->widgets.gateway_l, wf);
+               widget_move(wh, y, help_x);
+               y++;
+       }
 
-       y += 1 + 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_dhcp_help_l);
+       widget_set_visible(wl, show);
+       if (show) {
+               widget_move(wl, y, screen->field_x);
+               y += 1;
+       }
+
+       y += 1;
 
        widget_move(widget_button_base(screen->widgets.ok_b),
                        y, screen->field_x);
@@ -326,22 +379,69 @@ static void config_screen_layout_widgets(struct config_screen *screen,
 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);
        widgetset_post(screen->widgetset);
 }
 
+static struct interface_config *first_active_interface(
+               const struct config *config)
+{
+       unsigned int i;
+
+       for (i = 0; i < config->network.n_interfaces; i++) {
+               if (config->network.interfaces[i]->ignore)
+                       continue;
+               return config->network.interfaces[i];
+       }
+       return NULL;
+}
+
+static enum net_conf_type find_net_conf_type(const struct config *config)
+{
+       struct interface_config *ifcfg;
+
+       ifcfg = first_active_interface(config);
+
+       if (!ifcfg)
+               return NET_CONF_TYPE_DHCP_ALL;
+
+       else if (ifcfg->method == CONFIG_METHOD_DHCP)
+               return NET_CONF_TYPE_DHCP_ONE;
+
+       else if (ifcfg->method == CONFIG_METHOD_STATIC)
+               return NET_CONF_TYPE_STATIC;
+
+       assert(0);
+       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)
 {
        struct nc_widgetset *set = screen->widgetset;
+       struct interface_config *ifcfg;
+       char *str, *ip, *mask, *gw;
+       enum net_conf_type type;
        unsigned int i;
-       char *str;
 
        build_assert(sizeof(screen->widgets) / sizeof(struct widget *)
                        == N_FIELDS);
 
+       type = screen->net_conf_type;
+       ifcfg = first_active_interface(config);
+
        screen->widgets.autoboot_l = widget_new_label(set, 0, 0, "Autoboot:");
        screen->widgets.autoboot_f = widget_new_checkbox(set, 0, 0,
                                        config->autoboot_enabled);
@@ -349,6 +449,7 @@ 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");
 
        screen->widgets.network_l = widget_new_label(set, 0, 0, "Network");
        screen->widgets.network_f = widget_new_select(set, 0, 0, 50);
@@ -356,38 +457,79 @@ static void config_screen_setup_widgets(struct config_screen *screen,
        widget_select_add_option(screen->widgets.network_f,
                                        NET_CONF_TYPE_DHCP_ALL,
                                        "DHCP on all active interfaces",
-                                       true);
+                                       type == NET_CONF_TYPE_DHCP_ALL);
        widget_select_add_option(screen->widgets.network_f,
                                        NET_CONF_TYPE_DHCP_ONE,
                                        "DHCP on a specific interface",
-                                       false);
+                                       type == NET_CONF_TYPE_DHCP_ONE);
        widget_select_add_option(screen->widgets.network_f,
                                        NET_CONF_TYPE_STATIC,
                                        "Static IP configuration",
-                                       false);
+                                       type == NET_CONF_TYPE_STATIC);
 
        widget_select_on_change(screen->widgets.network_f,
                        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, false);
+                                               i, str, is_default);
+       }
+
+       gw = ip = mask = NULL;
+       if (ifcfg && ifcfg->method == CONFIG_METHOD_STATIC) {
+               char *sep;
+
+               str = talloc_strdup(screen, ifcfg->static_config.address);
+               sep = strchr(str, '/');
+               ip = str;
+
+               if (sep) {
+                       *sep = '\0';
+                       mask = sep + 1;
+               }
+               gw = ifcfg->static_config.gateway;
        }
 
        screen->widgets.ip_addr_l = widget_new_label(set, 0, 0, "IP/mask:");
-       screen->widgets.ip_addr_f = widget_new_textbox(set, 0, 0, 16, "");
+       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, "");
+       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)");
 
        screen->widgets.gateway_l = widget_new_label(set, 0, 0, "Gateway:");
-       screen->widgets.gateway_f = widget_new_textbox(set, 0, 0, 16, "");
+       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)");
+
+       str = talloc_strdup(screen, "");
+       for (i = 0; i < config->network.n_dns_servers; i++) {
+               str = talloc_asprintf_append(str, "%s%s",
+                               (i == 0) ? "" : " ",
+                               config->network.dns_servers[i]);
+       }
+
+       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_l = widget_new_label(set, 0, 0, "DNS Server:");
-       screen->widgets.dns_f = widget_new_textbox(set, 0, 0, 16, "");
+       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);
@@ -395,6 +537,84 @@ static void config_screen_setup_widgets(struct config_screen *screen,
                        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);
+}
+
+
+void config_screen_update(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, screen->net_conf_type);
+       }
+
+       if (repost)
+               widgetset_post(screen->widgetset);
+
+       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,
@@ -403,6 +623,7 @@ 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,
@@ -411,7 +632,7 @@ struct config_screen *config_screen_init(struct cui *cui,
        screen->cui = cui;
        screen->on_exit = on_exit;
        screen->label_x = 2;
-       screen->field_x = 16;
+       screen->field_x = 17;
 
        screen->scr.frame.ltitle = talloc_strdup(screen,
                        "Petitboot System Configuration");
@@ -420,13 +641,11 @@ struct config_screen *config_screen_init(struct cui *cui,
                        "tab=next, shift+tab=previous");
        nc_scr_frame_draw(&screen->scr);
 
-       screen->widgetset = widgetset_create(screen, screen->scr.main_ncw,
-                       screen->scr.sub_ncw);
-       config_screen_setup_widgets(screen, config, sysinfo);
-       config_screen_layout_widgets(screen, NET_CONF_TYPE_DHCP_ALL);
+       scrollok(screen->scr.sub_ncw, true);
+
+       config_screen_update(screen, config, sysinfo);
 
        wrefresh(screen->scr.main_ncw);
-       scrollok(screen->scr.sub_ncw, true);
 
        return screen;
 }