petitboot: Implement ordered boot options
authorSamuel Mendoza-Jonas <sam.mj@au1.ibm.com>
Wed, 21 Jan 2015 05:12:14 +0000 (16:12 +1100)
committerSamuel Mendoza-Jonas <sam.mj@au1.ibm.com>
Tue, 5 May 2015 05:03:46 +0000 (15:03 +1000)
Move petitboot to a more familiar 'boot-order' based autoboot system.
The discover server now reads multiple values from the petitboot,bootdev
parameter and adds them in order to config->autoboot_opts. Boot priority
is determined by the options' position in the list.
On the client, nc-config now recognises the new boot order, and allows
the user to add, remove, and reorder the devices in the list.

Signed-off-by: Samuel Mendoza-Jonas <sam.mj@au1.ibm.com>
discover/device-handler.c
discover/platform-powerpc.c
discover/platform.c
lib/pb-config/pb-config.c
lib/pb-protocol/pb-protocol.c
lib/types/types.h
ui/ncurses/nc-config.c
utils/pb-config.c

index f0537134c1a3bc2a517f40b8cc385525940dfe0b..487f2e73506221a316cd8e3b72928cccc733b167 100644 (file)
@@ -40,8 +40,7 @@
 
 enum default_priority {
        DEFAULT_PRIORITY_REMOTE         = 1,
-       DEFAULT_PRIORITY_LOCAL_UUID     = 2,
-       DEFAULT_PRIORITY_LOCAL_FIRST    = 3,
+       DEFAULT_PRIORITY_LOCAL_FIRST    = 2,
        DEFAULT_PRIORITY_LOCAL_LAST     = 0xfe,
        DEFAULT_PRIORITY_DISABLED       = 0xff,
 };
@@ -462,11 +461,27 @@ static bool ipmi_device_type_matches(enum ipmi_bootdev ipmi_type,
        return false;
 }
 
-static bool priority_matches(struct boot_priority *prio,
-               struct discover_boot_option *opt)
+static int autoboot_option_priority(const struct config *config,
+                               struct discover_boot_option *opt)
 {
-       return prio->type == opt->device->device->type ||
-               prio->type == DEVICE_TYPE_ANY;
+       enum device_type type = opt->device->device->type;
+       const char *uuid = opt->device->uuid;
+       struct autoboot_option *auto_opt;
+       unsigned int i;
+
+       for (i = 0; i < config->n_autoboot_opts; i++) {
+               auto_opt = &config->autoboot_opts[i];
+               if (auto_opt->boot_type == BOOT_DEVICE_UUID)
+                       if (!strcmp(auto_opt->uuid, uuid))
+                               return DEFAULT_PRIORITY_LOCAL_FIRST + i;
+
+               if (auto_opt->boot_type == BOOT_DEVICE_TYPE)
+                       if (auto_opt->type == type ||
+                           auto_opt->type == DEVICE_TYPE_ANY)
+                               return DEFAULT_PRIORITY_LOCAL_FIRST + i;
+       }
+
+       return -1;
 }
 
 /*
@@ -478,8 +493,6 @@ static enum default_priority default_option_priority(
                struct discover_boot_option *opt)
 {
        const struct config *config;
-       const char *dev_str;
-       unsigned int i;
 
        config = config_get();
 
@@ -498,25 +511,17 @@ static enum default_priority default_option_priority(
                return DEFAULT_PRIORITY_DISABLED;
        }
 
-       /* Next, allow matching by device UUID. If we have one set but it
-        * doesn't match, disallow the default entirely */
-       dev_str = config->boot_device;
-       if (dev_str && dev_str[0]) {
-               if (!strcmp(opt->device->uuid, dev_str))
-                       return DEFAULT_PRIORITY_LOCAL_UUID;
-
-               pb_debug("handler: disabled default priority due to "
-                               "non-matching UUID\n");
-               return DEFAULT_PRIORITY_DISABLED;
-       }
-
-       /* Lastly, use the local priorities */
-       for (i = 0; i < config->n_boot_priorities; i++) {
-               struct boot_priority *prio = &config->boot_priorities[i];
-               if (priority_matches(prio, opt))
-                       return DEFAULT_PRIORITY_LOCAL_FIRST + prio->priority;
+       /* Next, try to match the option against the user-defined autoboot
+        * options, either by device UUID or type. */
+       if (config->n_autoboot_opts) {
+               int boot_match = autoboot_option_priority(config, opt);
+               if (boot_match > 0)
+                       return boot_match;
        }
 
+       /* If the option didn't match any entry in the array, it is disabled */
+       pb_debug("handler: disabled default priority due to "
+                       "non-matching UUID or type\n");
        return DEFAULT_PRIORITY_DISABLED;
 }
 
index 895f0ecd73cc54ccea2420c037b26124f9a68076..bbffb604c8481d914b64b29a4be06935b45a4fc7 100644 (file)
@@ -49,6 +49,7 @@ static const char *known_params[] = {
        "petitboot,network",
        "petitboot,timeout",
        "petitboot,bootdev",
+       "petitboot,bootdevs",
        "petitboot,language",
        "petitboot,debug?",
        NULL,
@@ -431,28 +432,86 @@ static int read_bootdev(void *ctx, char **pos, struct autoboot_option *opt)
 
 static void populate_bootdev_config(struct platform_powerpc *platform,
                struct config *config)
-
 {
+       struct autoboot_option *opt, *new = NULL;
+       char *pos, *end, *old_dev = NULL;
+       const char delim = ' ';
+       unsigned int n_new = 0;
        const char *val;
+       bool conflict;
 
-       config->boot_device = NULL;
-
+       /* Check for old-style bootdev */
        val = get_param(platform, "petitboot,bootdev");
-       if (!val || !strlen(val))
-               return;
-
-       if (!strncmp(val, "uuid:", strlen("uuid:"))) {
-               config->boot_device = talloc_strdup(config,
+       if (val && strlen(val)) {
+               pos = talloc_strdup(config, val);
+               if (!strncmp(val, "uuid:", strlen("uuid:")))
+                       old_dev = talloc_strdup(config,
                                                val + strlen("uuid:"));
-
-       } else if (!strncmp(val, "mac:", strlen("mac:"))) {
-               config->boot_device = talloc_strdup(config,
+               else if (!strncmp(val, "mac:", strlen("mac:")))
+                       old_dev = talloc_strdup(config,
                                                val + strlen("mac:"));
+       }
 
+       /* Check for ordered bootdevs */
+       val = get_param(platform, "petitboot,bootdevs");
+       if (!val || !strlen(val)) {
+               pos = end = NULL;
        } else {
-               pb_log("bootdev config is in an unknown format "
-                               "(expected uuid:... or mac:...)");
+               pos = talloc_strdup(config, val);
+               end = strchr(pos, '\0');
+       }
+
+       while (pos && pos < end) {
+               opt = talloc(config, struct autoboot_option);
+
+               if (read_bootdev(config, &pos, opt)) {
+                       pb_log("bootdev config is in an unknown format "
+                              "(expected uuid:... or mac:...)");
+                       talloc_free(opt);
+                       if (strchr(pos, delim))
+                               continue;
+                       return;
+               }
+
+               new = talloc_realloc(config, new, struct autoboot_option,
+                                    n_new + 1);
+               new[n_new] = *opt;
+               n_new++;
+               talloc_free(opt);
+
        }
+
+       if (!n_new && !old_dev) {
+               /* If autoboot has been disabled, clear the default options */
+               if (!config->autoboot_enabled) {
+                       talloc_free(config->autoboot_opts);
+                       config->n_autoboot_opts = 0;
+               }
+               return;
+       }
+
+       conflict = old_dev && (!n_new ||
+                                   new[0].boot_type == BOOT_DEVICE_TYPE ||
+                                   /* Canonical UUIDs are 36 characters long */
+                                   strncmp(new[0].uuid, old_dev, 36));
+
+       if (!conflict) {
+               talloc_free(config->autoboot_opts);
+               config->autoboot_opts = new;
+               config->n_autoboot_opts = n_new;
+               return;
+       }
+
+       /*
+        * Difference detected, defer to old format in case it has been updated
+        * recently
+        */
+       pb_debug("Old autoboot bootdev detected\n");
+       talloc_free(config->autoboot_opts);
+       config->autoboot_opts = talloc(config, struct autoboot_option);
+       config->autoboot_opts[0].boot_type = BOOT_DEVICE_UUID;
+       config->autoboot_opts[0].uuid = talloc_strdup(config, old_dev);
+       config->n_autoboot_opts = 1;
 }
 
 static void populate_config(struct platform_powerpc *platform,
@@ -578,16 +637,40 @@ static void update_network_config(struct platform_powerpc *platform,
 static void update_bootdev_config(struct platform_powerpc *platform,
                struct config *config)
 {
-       char *val, *tmp = NULL;
+       char *val = NULL, *boot_str = NULL, *tmp = NULL, *first = NULL;
+       struct autoboot_option *opt;
+       const char delim = ' ';
+       unsigned int i;
 
-       if (!config->boot_device)
-               val = "";
+       if (!config->n_autoboot_opts)
+               first = val = "";
+       else if (config->autoboot_opts[0].boot_type == BOOT_DEVICE_UUID)
+               first = talloc_asprintf(config, "uuid:%s",
+                                       config->autoboot_opts[0].uuid);
        else
-               tmp = val = talloc_asprintf(platform,
-                               "uuid:%s", config->boot_device);
+               first = "";
+
+       for (i = 0; i < config->n_autoboot_opts; i++) {
+               opt = &config->autoboot_opts[i];
+               switch (opt->boot_type) {
+                       case BOOT_DEVICE_TYPE:
+                               boot_str = talloc_asprintf(config, "%s%c",
+                                               device_type_name(opt->type),
+                                               delim);
+                               break;
+                       case BOOT_DEVICE_UUID:
+                               boot_str = talloc_asprintf(config, "uuid:%s%c",
+                                               opt->uuid, delim);
+                               break;
+                       }
+                       tmp = val = talloc_asprintf_append(val, boot_str);
+       }
 
-       update_string_config(platform, "petitboot,bootdev", val);
+       update_string_config(platform, "petitboot,bootdevs", val);
+       update_string_config(platform, "petitboot,bootdev", first);
        talloc_free(tmp);
+       if (boot_str)
+               talloc_free(boot_str);
 }
 
 static int update_config(struct platform_powerpc *platform,
index 445158991fcef7cfc2b2846b0154d7bb45f97625..74e2a82df3225519fdcc2ad49ebc3502214bda09 100644 (file)
@@ -62,16 +62,13 @@ static void dump_config(struct config *config)
        for (i = 0; i < config->network.n_dns_servers; i++)
                pb_log("  dns server %s\n", config->network.dns_servers[i]);
 
-       if (config->boot_device)
-               pb_log("  boot device %s\n", config->boot_device);
-
-       if (config->n_boot_priorities)
-               pb_log(" boot priority order:\n");
-
-       for (i = 0; i < config->n_boot_priorities; i++) {
-               struct boot_priority *prio = &config->boot_priorities[i];
-               pb_log(" %10s: %d\n", device_type_name(prio->type),
-                                       prio->priority);
+       for (i = 0; i < config->n_autoboot_opts; i++) {
+               if (config->autoboot_opts[i].boot_type == BOOT_DEVICE_TYPE)
+                       pb_log("  boot device %d: %s\n", i,
+                              device_type_name(config->autoboot_opts[i].type));
+               else
+                       pb_log("  boot device %d: uuid: %s\n",
+                              i, config->autoboot_opts[i].uuid);
        }
 
        pb_log("  IPMI boot device 0x%02x%s\n", config->ipmi_bootdev,
@@ -109,17 +106,16 @@ void config_set_defaults(struct config *config)
        config->network.n_interfaces = 0;
        config->network.dns_servers = NULL;
        config->network.n_dns_servers = 0;
-       config->boot_device = NULL;
        config->safe_mode = false;
        config->lang = NULL;
 
-       config->n_boot_priorities = 2;
-       config->boot_priorities = talloc_array(config, struct boot_priority,
-                                               config->n_boot_priorities);
-       config->boot_priorities[0].type = DEVICE_TYPE_NETWORK;
-       config->boot_priorities[0].priority = 0;
-       config->boot_priorities[1].type = DEVICE_TYPE_ANY;
-       config->boot_priorities[1].priority = 1;
+       config->n_autoboot_opts = 2;
+       config->autoboot_opts = talloc_array(config, struct autoboot_option,
+                                               config->n_autoboot_opts);
+       config->autoboot_opts[0].boot_type = BOOT_DEVICE_TYPE;
+       config->autoboot_opts[0].type = DEVICE_TYPE_NETWORK;
+       config->autoboot_opts[1].boot_type = BOOT_DEVICE_TYPE;
+       config->autoboot_opts[1].type = DEVICE_TYPE_ANY;
 
        config->ipmi_bootdev = 0;
        config->ipmi_bootdev_persistent = false;
index a2272f431e80d49d4ab829563db4716abfd78769..98a6078bc552bb19f6a95d841ba2dd13024807f2 100644 (file)
@@ -59,21 +59,21 @@ struct config *config_copy(void *ctx, const struct config *src)
                dest->network.dns_servers[i] = talloc_strdup(dest,
                                src->network.dns_servers[i]);
 
-       dest->n_boot_priorities = src->n_boot_priorities;
-       dest->boot_priorities = talloc_array(dest, struct boot_priority,
-                       src->n_boot_priorities);
-
-       for (i = 0; i < src->n_boot_priorities; i++) {
-               dest->boot_priorities[i].priority =
-                                       src->boot_priorities[i].priority;
-               dest->boot_priorities[i].type = src->boot_priorities[i].type;
+       dest->n_autoboot_opts = src->n_autoboot_opts;
+       dest->autoboot_opts = talloc_array(dest, struct autoboot_option,
+                                       dest->n_autoboot_opts);
+
+       for (i = 0; i < src->n_autoboot_opts; i++) {
+               dest->autoboot_opts[i].boot_type =
+                       src->autoboot_opts[i].boot_type;
+               if (src->autoboot_opts[i].boot_type == BOOT_DEVICE_TYPE)
+                       dest->autoboot_opts[i].type =
+                               src->autoboot_opts[i].type;
+               else
+                       dest->autoboot_opts[i].uuid =
+                               talloc_strdup(dest, src->autoboot_opts[i].uuid);
        }
 
-       if (src->boot_device && strlen(src->boot_device))
-               dest->boot_device = talloc_strdup(dest, src->boot_device);
-       else
-               dest->boot_device = NULL;
-
        dest->ipmi_bootdev = src->ipmi_bootdev;
        dest->ipmi_bootdev_persistent = src->ipmi_bootdev_persistent;
 
index 439824871ebf1e380561cc76129da2d3f81d3f98..69ea35d2eed735382abe2bf22acc64444311159c 100644 (file)
@@ -280,9 +280,13 @@ int pb_protocol_config_len(const struct config *config)
                len += 4 + optional_strlen(config->network.dns_servers[i]);
 
        len += 4;
-       len += config->n_boot_priorities * 8;
-
-       len += 4 + optional_strlen(config->boot_device);
+       for (i = 0; i < config->n_autoboot_opts; i++) {
+               if (config->autoboot_opts[i].boot_type == BOOT_DEVICE_TYPE)
+                       len += 4 + 4;
+               else
+                       len += 4 + 4 +
+                               optional_strlen(config->autoboot_opts[i].uuid);
+       }
 
        len += 4 + 4; /* ipmi_bootdev, ipmi_bootdev_persistent */
 
@@ -477,19 +481,22 @@ int pb_protocol_serialise_config(const struct config *config,
                                config->network.dns_servers[i]);
        }
 
-       *(uint32_t *)pos = __cpu_to_be32(config->n_boot_priorities);
+       *(uint32_t *)pos = __cpu_to_be32(config->n_autoboot_opts);
        pos += 4;
-       for (i = 0; i < config->n_boot_priorities; i++) {
-               *(uint32_t *)pos =
-                       __cpu_to_be32(config->boot_priorities[i].type);
-               pos += 4;
+       for (i = 0; i < config->n_autoboot_opts; i++) {
                *(uint32_t *)pos =
-                       __cpu_to_be32(config->boot_priorities[i].priority);
+                       __cpu_to_be32(config->autoboot_opts[i].boot_type);
                pos += 4;
+               if (config->autoboot_opts[i].boot_type == BOOT_DEVICE_TYPE) {
+                       *(uint32_t *)pos =
+                               __cpu_to_be32(config->autoboot_opts[i].type);
+                       pos += 4;
+               } else {
+                       pos += pb_protocol_serialise_string(pos,
+                                               config->autoboot_opts[i].uuid);
+               }
        }
 
-       pos += pb_protocol_serialise_string(pos, config->boot_device);
-
        *(uint32_t *)pos = __cpu_to_be32(config->ipmi_bootdev);
        pos += 4;
        *(uint32_t *)pos = config->ipmi_bootdev_persistent;
@@ -925,24 +932,26 @@ int pb_protocol_deserialise_config(struct config *config,
                config->network.dns_servers[i] = str;
        }
 
-       if (read_u32(&pos, &len, &config->n_boot_priorities))
+       if (read_u32(&pos, &len, &config->n_autoboot_opts))
                goto out;
-       config->boot_priorities = talloc_array(config, struct boot_priority,
-                       config->n_boot_priorities);
+       config->autoboot_opts = talloc_array(config, struct autoboot_option,
+                       config->n_autoboot_opts);
 
-       for (i = 0; i < config->n_boot_priorities; i++) {
+       for (i = 0; i < config->n_autoboot_opts; i++) {
                if (read_u32(&pos, &len, &tmp))
                        goto out;
-               config->boot_priorities[i].priority = (int)tmp;
-               if (read_u32(&pos, &len, &tmp))
-                       goto out;
-               config->boot_priorities[i].type = tmp;
+               config->autoboot_opts[i].boot_type = (int)tmp;
+               if (config->autoboot_opts[i].boot_type == BOOT_DEVICE_TYPE) {
+                       if (read_u32(&pos, &len, &tmp))
+                               goto out;
+                       config->autoboot_opts[i].type = tmp;
+               } else {
+                       if (read_string(config, &pos, &len, &str))
+                               goto out;
+                       config->autoboot_opts[i].uuid = str;
+               }
        }
 
-       if (read_string(config, &pos, &len, &str))
-               goto out;
-       config->boot_device = str;
-
        if (read_u32(&pos, &len, &config->ipmi_bootdev))
                goto out;
        if (read_u32(&pos, &len, &tmp))
index e22dbc307d478389047ad32de52076c57ad955b7..3bb8c9be456a6030028bb7569f4b256fa2066a3e 100644 (file)
@@ -113,15 +113,6 @@ struct network_config {
        unsigned int            n_dns_servers;
 };
 
-struct boot_priority {
-       /* Boot options with higher priority values will take precedence over
-        * lower values. Negative priorities signify "don't boot this by
-        * default".
-        */
-       int                     priority;
-       enum device_type        type;
-};
-
 struct autoboot_option {
        enum {
                BOOT_DEVICE_TYPE,
@@ -138,10 +129,8 @@ struct config {
        unsigned int            autoboot_timeout_sec;
        struct network_config   network;
 
-       struct boot_priority    *boot_priorities;
-       unsigned int            n_boot_priorities;
-
-       char                    *boot_device;
+       struct autoboot_option  *autoboot_opts;
+       unsigned int            n_autoboot_opts;
 
        unsigned int            ipmi_bootdev;
        bool                    ipmi_bootdev_persistent;
index c45df34e9afce17f5d641206bade8923e3bff252..3156b9bf1057bc609bdf031908ee401d7d574b18 100644 (file)
 #include "nc-config.h"
 #include "nc-widgets.h"
 
-#define N_FIELDS       26
+#define N_FIELDS       29
 
 extern struct help_text config_help_text;
 
-enum autoboot_type {
-       AUTOBOOT_ANY,
-       AUTOBOOT_ONE,
-       AUTOBOOT_DISABLED,
-};
-
 enum net_conf_type {
        NET_CONF_TYPE_DHCP_ALL,
        NET_CONF_TYPE_DHCP_ONE,
@@ -57,7 +51,9 @@ struct config_screen {
 
        bool                    exit;
        bool                    show_help;
+       bool                    show_subset;
        bool                    need_redraw;
+
        void                    (*on_exit)(struct cui *);
 
        int                     scroll_y;
@@ -67,12 +63,16 @@ struct config_screen {
        int                     network_config_y;
 
        enum net_conf_type      net_conf_type;
-       enum autoboot_type      autoboot_type;
+
+       bool                    autoboot_enabled;
 
        struct {
-               struct nc_widget_select         *autoboot_f;
-               struct nc_widget_label          *autoboot_l;
-               struct nc_widget_select         *boot_device_f;
+               struct nc_widget_label          *boot_order_l;
+               struct nc_widget_subset         *boot_order_f;
+               struct nc_widget_label          *boot_empty_l;
+               struct nc_widget_button         *boot_add_b;
+               struct nc_widget_button         *boot_none_b;
+               struct nc_widget_button         *boot_any_b;
                struct nc_widget_textbox        *timeout_f;
                struct nc_widget_label          *timeout_l;
                struct nc_widget_label          *timeout_help_l;
@@ -151,7 +151,7 @@ static void config_screen_process_key(struct nc_scr *scr, int key)
                cui_show_help(screen->cui, _("System Configuration"),
                                &config_help_text);
 
-       } else if (handled) {
+       } else if (handled && !screen->show_subset) {
                pad_refresh(screen);
        }
 }
@@ -165,6 +165,7 @@ static void config_screen_resize(struct nc_scr *scr)
 static int config_screen_post(struct nc_scr *scr)
 {
        struct config_screen *screen = config_screen_from_scr(scr);
+       screen->show_subset = false;
        widgetset_post(screen->widgetset);
        nc_scr_frame_draw(scr);
        if (screen->need_redraw) {
@@ -193,40 +194,48 @@ static int screen_process_form(struct config_screen *screen)
        const struct system_info *sysinfo = screen->cui->sysinfo;
        enum net_conf_type net_conf_type;
        struct interface_config *iface;
-       char *str, *end, *uuid;
+       char *str, *end;
        struct config *config;
-       int rc, idx;
+       int i, n_boot_opts, rc, idx;
+       unsigned int *order;
+       char mac[20];
 
        config = config_copy(screen, screen->cui->config);
 
-       screen->autoboot_type =
-               widget_select_get_value(screen->widgets.autoboot_f);
-
-       config->autoboot_enabled = screen->autoboot_type != AUTOBOOT_DISABLED;
-
-       uuid = NULL;
-       if (screen->autoboot_type == AUTOBOOT_ONE) {
-               char mac[20];
-
-               /* if idx is -1 here, we have an unknown UUID selected.
-                * Otherwise, it's a blockdev index (idx <= n_blockdevs) or an
-                * interface index.
-                */
-               idx = widget_select_get_value(screen->widgets.boot_device_f);
-               if (idx >= (int)sysinfo->n_blockdevs) {
-                       struct interface_info *info = sysinfo->
-                               interfaces[idx - sysinfo->n_blockdevs];
-                       mac_str(info->hwaddr, info->hwaddr_size,
-                                       mac, sizeof(mac));
-                       uuid = mac;
-               } else if (idx != -1) {
-                       uuid = sysinfo->blockdevs[idx]->uuid;
+       talloc_free(config->autoboot_opts);
+       config->n_autoboot_opts = 0;
+
+       n_boot_opts = widget_subset_get_order(config, &order,
+                                             screen->widgets.boot_order_f);
+
+       config->autoboot_enabled = n_boot_opts > 0;
+
+       config->n_autoboot_opts = n_boot_opts;
+       config->autoboot_opts = talloc_array(config, struct autoboot_option,
+                                            n_boot_opts);
+
+       for (i = 0; i < n_boot_opts; i++) {
+               if (order[i] < sysinfo->n_blockdevs) {
+                       /* disk uuid */
+                       config->autoboot_opts[i].boot_type = BOOT_DEVICE_UUID;
+                       config->autoboot_opts[i].uuid = talloc_strdup(config,
+                                                       sysinfo->blockdevs[order[i]]->uuid);
+               } else if(order[i] < (sysinfo->n_blockdevs + sysinfo->n_interfaces)) {
+                       /* net uuid */
+                       order[i] -= sysinfo->n_blockdevs;
+                       config->autoboot_opts[i].boot_type = BOOT_DEVICE_UUID;
+                       mac_str(sysinfo->interfaces[order[i]]->hwaddr,
+                               sysinfo->interfaces[order[i]]->hwaddr_size,
+                               mac, sizeof(mac));
+                       config->autoboot_opts[i].uuid = talloc_strdup(config, mac);
+               } else {
+                       /* device type */
+                       order[i] -= (sysinfo->n_blockdevs + sysinfo->n_interfaces);
+                       config->autoboot_opts[i].boot_type = BOOT_DEVICE_TYPE;
+                       config->autoboot_opts[i].type = order[i];
                }
        }
 
-       talloc_free(config->boot_device);
-       config->boot_device = uuid ? talloc_strdup(config, uuid) : NULL;
-
        str = widget_textbox_get_value(screen->widgets.timeout_f);
        if (str) {
                unsigned long x;
@@ -367,35 +376,55 @@ static void config_screen_layout_widgets(struct config_screen *screen)
        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_select_base(screen->widgets.autoboot_f));
+       y += 1;
+
+       wl = widget_label_base(screen->widgets.boot_order_l);
+       widget_set_visible(wl, true);
+       widget_move(wl, y, screen->label_x);
+
+       wf = widget_subset_base(screen->widgets.boot_order_f);
+       widget_move(wf, y, screen->field_x);
+       wl = widget_label_base(screen->widgets.boot_empty_l);
+       widget_move(wl, y, screen->field_x);
 
-       wf = widget_select_base(screen->widgets.boot_device_f);
-       if (screen->autoboot_type == AUTOBOOT_ONE) {
+       if (widget_subset_height(screen->widgets.boot_order_f)) {
                widget_set_visible(wf, true);
-               widget_move(wf, y, screen->field_x + 3);
+               widget_set_visible(wl, false);
                y += widget_height(wf);
        } else {
+               widget_set_visible(wl, true);
                widget_set_visible(wf, false);
+               y += 1;
        }
 
        y += 1;
 
+       widget_move(widget_button_base(screen->widgets.boot_add_b),
+                       y, screen->field_x);
+       widget_move(widget_button_base(screen->widgets.boot_any_b),
+                       y, screen->field_x + 12);
+       widget_move(widget_button_base(screen->widgets.boot_none_b),
+                       y, screen->field_x + 30);
+
+       wf = widget_button_base(screen->widgets.boot_add_b);
+       if (widget_subset_n_inactive(screen->widgets.boot_order_f))
+               widget_set_visible(wf, true);
+       else
+               widget_set_visible(wf, false);
+
+       y += 2;
+
        wf = widget_textbox_base(screen->widgets.timeout_f);
        wl = widget_label_base(screen->widgets.timeout_l);
        wh = widget_label_base(screen->widgets.timeout_help_l);
-       if (screen->autoboot_type != AUTOBOOT_DISABLED) {
-               widget_set_visible(wl, true);
-               widget_set_visible(wf, true);
-               widget_set_visible(wh, true);
+       widget_set_visible(wl, screen->autoboot_enabled);
+       widget_set_visible(wf, screen->autoboot_enabled);
+       if (screen->autoboot_enabled) {
+               widget_set_visible(wh, screen->autoboot_enabled);
                widget_move(wl, y, screen->label_x);
                widget_move(wf, y, screen->field_x);
                widget_move(wh, y, screen->field_x + widget_width(wf) + 1);
                y += 2;
-       } else {
-               widget_set_visible(wl, false);
-               widget_set_visible(wf, false);
-               widget_set_visible(wh, false);
        }
 
        y += layout_pair(screen, y, screen->widgets.network_l,
@@ -500,15 +529,69 @@ static void config_screen_network_change(void *arg, int value)
        widgetset_post(screen->widgetset);
 }
 
-static void config_screen_autoboot_change(void *arg, int value)
+static void config_screen_boot_order_change(void *arg, int value)
+{
+       (void)value;
+       struct config_screen *screen = arg;
+       widgetset_unpost(screen->widgetset);
+       config_screen_layout_widgets(screen);
+       widgetset_post(screen->widgetset);
+}
+
+static void config_screen_add_device(void *arg)
 {
        struct config_screen *screen = arg;
-       screen->autoboot_type = value;
+
+       screen->show_subset = true;
+       cui_show_subset(screen->cui, _("Select an option"),
+                       screen->widgets.boot_order_f);
+}
+
+static void config_screen_autoboot_none(void *arg)
+{
+       struct config_screen *screen = arg;
+       struct nc_widget_subset *subset = screen->widgets.boot_order_f;
+
+       widget_subset_clear_active(subset);
+       screen->autoboot_enabled = false;
+
        widgetset_unpost(screen->widgetset);
        config_screen_layout_widgets(screen);
        widgetset_post(screen->widgetset);
 }
 
+static void config_screen_autoboot_any(void *arg)
+{
+       struct config_screen *screen = arg;
+       const struct system_info *sysinfo = screen->cui->sysinfo;
+       struct nc_widget_subset *subset = screen->widgets.boot_order_f;
+       int idx;
+
+       widget_subset_clear_active(subset);
+
+       idx = sysinfo->n_blockdevs + sysinfo->n_interfaces + DEVICE_TYPE_ANY;
+
+       widget_subset_make_active(screen->widgets.boot_order_f, idx);
+
+       screen->autoboot_enabled = true;
+
+       widgetset_unpost(screen->widgetset);
+       config_screen_layout_widgets(screen);
+       widgetset_post(screen->widgetset);
+}
+
+static void config_screen_update_subset(void *arg,
+                       struct nc_widget_subset *subset, int idx)
+{
+       struct config_screen *screen = arg;
+
+       if (idx >= 0)
+               widget_subset_make_active(subset, idx);
+       if (!screen->autoboot_enabled)
+               screen->autoboot_enabled = true;
+       config_screen_layout_widgets(screen);
+}
+
 static struct interface_config *first_active_interface(
                const struct config *config)
 {
@@ -550,6 +633,31 @@ static void config_screen_setup_empty(struct config_screen *screen)
                        cancel_click, screen);
 }
 
+static int find_autoboot_idx(const struct system_info *sysinfo,
+               struct autoboot_option *opt)
+{
+       unsigned int i;
+
+       if (opt->boot_type == BOOT_DEVICE_TYPE)
+               return sysinfo->n_blockdevs + sysinfo->n_interfaces + opt->type;
+
+       for (i = 0; i < sysinfo->n_blockdevs; i++) {
+               if (!strcmp(sysinfo->blockdevs[i]->uuid, opt->uuid))
+                       return i;
+       }
+
+       for (i = 0; i < sysinfo->n_interfaces; i++) {
+               struct interface_info *info = sysinfo->interfaces[i];
+               char mac[20];
+
+               mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
+
+               if (!strcmp(mac, opt->uuid))
+                       return sysinfo->n_blockdevs + i;
+       }
+
+       return -1;
+}
 
 static void config_screen_setup_widgets(struct config_screen *screen,
                const struct config *config,
@@ -560,7 +668,6 @@ static void config_screen_setup_widgets(struct config_screen *screen,
        char *str, *ip, *mask, *gw;
        enum net_conf_type type;
        unsigned int i;
-       bool found;
 
        build_assert(sizeof(screen->widgets) / sizeof(struct widget *)
                        == N_FIELDS);
@@ -568,81 +675,84 @@ static void config_screen_setup_widgets(struct config_screen *screen,
        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_select(set, 0, 0, 55);
-
-       widget_select_on_change(screen->widgets.autoboot_f,
-                       config_screen_autoboot_change, screen);
-
-       screen->widgets.boot_device_f = widget_new_select(set, 0, 0, 55);
-
-       widget_select_add_option(screen->widgets.autoboot_f,
-                                       AUTOBOOT_DISABLED,
-                                       _("Don't autoboot"),
-                                       screen->autoboot_type ==
-                                               AUTOBOOT_DISABLED);
-       widget_select_add_option(screen->widgets.autoboot_f,
-                                       AUTOBOOT_ANY,
-                                       _("Autoboot from any "
-                                               "disk/network device"),
-                                       screen->autoboot_type ==
-                                               AUTOBOOT_ANY);
-       widget_select_add_option(screen->widgets.autoboot_f,
-                                       AUTOBOOT_ONE,
-                                       _("Only autoboot from a specific "
-                                               "disk/network device"),
-                                       screen->autoboot_type ==
-                                               AUTOBOOT_ONE);
-
-       found = false;
+       screen->widgets.boot_add_b = widget_new_button(set, 0, 0, 10,
+                                       _("Add Device"), config_screen_add_device,
+                                       screen);
+
+       screen->widgets.boot_none_b = widget_new_button(set, 0, 0, 10,
+                                       _("Clear"),
+                                       config_screen_autoboot_none, screen);
+
+       screen->widgets.boot_any_b = widget_new_button(set, 0, 0, 16,
+                                       _("Clear & Boot Any"), config_screen_autoboot_any,
+                                       screen);
+
+       screen->widgets.boot_order_l = widget_new_label(set, 0, 0,
+                                       _("Boot order:"));
+       screen->widgets.boot_order_f = widget_new_subset(set, 0, 0,
+                                       COLS - screen->field_x,
+                                       config_screen_update_subset);
+       screen->widgets.boot_empty_l = widget_new_label(set, 0, 0,
+                                       _("(None)"));
+
+       widget_subset_on_change(screen->widgets.boot_order_f,
+                       config_screen_boot_order_change, screen);
 
        for (i = 0; i < sysinfo->n_blockdevs; i++) {
                struct blockdev_info *bd = sysinfo->blockdevs[i];
-               bool selected;
                char *label;
 
-               selected = config->boot_device &&
-                               !strcmp(config->boot_device, bd->uuid);
-               if (selected)
-                       found = true;
-
                label = talloc_asprintf(screen, _("disk: %s [uuid: %s]"),
                                bd->name, bd->uuid);
 
-               widget_select_add_option(screen->widgets.boot_device_f, i,
-                                       label, selected);
+               widget_subset_add_option(screen->widgets.boot_order_f, label);
        }
 
        for (i = 0; i < sysinfo->n_interfaces; i++) {
                struct interface_info *info = sysinfo->interfaces[i];
                char *label, mac[20];
-               bool selected;
 
                mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
-               selected = config->boot_device &&
-                               !strcmp(config->boot_device, mac);
-               if (selected)
-                       found = true;
 
                label = talloc_asprintf(screen, _("net:  %s [mac: %s]"),
                                info->name, mac);
 
-               widget_select_add_option(screen->widgets.boot_device_f,
-                                               i + sysinfo->n_blockdevs,
-                                               label, selected);
+               widget_subset_add_option(screen->widgets.boot_order_f, label);
        }
 
-       if (screen->autoboot_type == AUTOBOOT_ONE && !found) {
+       for (i = DEVICE_TYPE_NETWORK; i < DEVICE_TYPE_NETWORK + 4; i++) {
                char *label;
 
-               label = talloc_asprintf(screen, _("Unknown UUID: %s"),
-                               config->boot_device);
+               if (i == DEVICE_TYPE_ANY)
+                       label = talloc_asprintf(screen, _("Any Device"));
+               else
+                       label = talloc_asprintf(screen, _("Any %s device"),
+                                               device_type_display_name(i));
 
-               widget_select_add_option(screen->widgets.boot_device_f, -1,
-                                               label, true);
+               widget_subset_add_option(screen->widgets.boot_order_f, label);
        }
 
+       screen->autoboot_enabled = config->n_autoboot_opts;
+       for (i = 0; i < config->n_autoboot_opts; i++) {
+               struct autoboot_option *opt = &config->autoboot_opts[i];
+               int idx;
+
+               idx = find_autoboot_idx(sysinfo, opt);
+
+               if (idx >= 0) {
+                       widget_subset_make_active(screen->widgets.boot_order_f,
+                                                 idx);
+               } else {
+                       if (opt->boot_type == BOOT_DEVICE_TYPE)
+                               pb_log("%s: Unknown autoboot option: %d\n",
+                                      __func__, opt->type);
+                       else
+                               pb_log("%s: Unknown autoboot UUID: %s\n",
+                                      __func__, opt->uuid);
+               }
+       }
+
+
        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);
@@ -818,12 +928,6 @@ static void config_screen_draw(struct config_screen *screen,
                config_screen_setup_empty(screen);
        } else {
                screen->net_conf_type = find_net_conf_type(config);
-               if (!config->autoboot_enabled)
-                       screen->autoboot_type = AUTOBOOT_DISABLED;
-               else
-                       screen->autoboot_type = config->boot_device ?
-                                       AUTOBOOT_ONE : AUTOBOOT_ANY;
-
                config_screen_setup_widgets(screen, config, sysinfo);
                config_screen_layout_widgets(screen);
        }
@@ -868,6 +972,8 @@ struct config_screen *config_screen_init(struct cui *cui,
        screen->label_x = 2;
        screen->field_x = 17;
 
+       screen->show_subset = false;
+
        screen->scr.frame.ltitle = talloc_strdup(screen,
                        _("Petitboot System Configuration"));
        screen->scr.frame.rtitle = NULL;
index 3bd670c6d002e98de30813da46665d46de9aa2bb..009bec742330223ba966f811e680b94e19ea5c7c 100644 (file)
@@ -61,7 +61,16 @@ static void print_one_config(void *ctx, const char *req, const char *name,
 
 static void print_config(void *ctx, struct config *config, const char *var)
 {
-       print_one_config(ctx, var, "bootdev", "%s", config->boot_device);
+       unsigned int i;
+
+       for (i = 0; i < config->n_autoboot_opts; i++) {
+               if (config->autoboot_opts[i].boot_type == BOOT_DEVICE_TYPE)
+                       print_one_config(ctx, var, "bootdev", "%s",
+                        device_type_name(config->autoboot_opts[i].type));
+               else
+                       print_one_config(ctx, var, "bootdev", "%s",
+                                        config->autoboot_opts[i].uuid);
+       }
        print_one_config(ctx, var, "autoboot", "%s",
                        config->autoboot_enabled ? "enabled" : "disabled");
        print_one_config(ctx, var, "timeout", "%d",