#include <string.h>
#include <errno.h>
#include <mntent.h>
+#include <locale.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/mount.h>
#include <url/url.h>
#include <i18n/i18n.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+
#include "device-handler.h"
#include "discover-server.h"
#include "user-event.h"
#include "boot.h"
#include "udev.h"
#include "network.h"
+#include "ipmi.h"
+
+enum default_priority {
+ DEFAULT_PRIORITY_REMOTE = 1,
+ DEFAULT_PRIORITY_LOCAL_FIRST = 2,
+ DEFAULT_PRIORITY_LOCAL_LAST = 0xfe,
+ DEFAULT_PRIORITY_DISABLED = 0xff,
+};
struct device_handler {
struct discover_server *server;
unsigned int sec_to_boot;
struct discover_boot_option *default_boot_option;
+ int default_boot_option_priority;
+
struct list unresolved_boot_options;
struct boot_task *pending_boot;
status.progress = -1;
status.detail = NULL;
status.message = talloc_asprintf(handler,
- "Booting in %d sec: %s", sec, opt->option->name);
+ _("Booting in %d sec: %s"), sec, opt->option->name);
discover_server_notify_boot_status(handler->server, &status);
return 0;
}
-static bool priority_match(struct boot_priority *prio,
- struct discover_boot_option *opt)
+struct {
+ enum ipmi_bootdev ipmi_type;
+ enum device_type device_type;
+} device_type_map[] = {
+ { IPMI_BOOTDEV_NETWORK, DEVICE_TYPE_NETWORK },
+ { IPMI_BOOTDEV_DISK, DEVICE_TYPE_DISK },
+ { IPMI_BOOTDEV_CDROM, DEVICE_TYPE_OPTICAL },
+};
+
+static bool ipmi_device_type_matches(enum ipmi_bootdev ipmi_type,
+ enum device_type device_type)
{
- return prio->type == opt->device->device->type ||
- prio->type == DEVICE_TYPE_ANY;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(device_type_map); i++) {
+ if (device_type_map[i].device_type == device_type)
+ return device_type_map[i].ipmi_type == ipmi_type;
+ }
+
+ return false;
}
-static int default_option_priority(struct discover_boot_option *opt)
+static int autoboot_option_priority(const struct config *config,
+ struct discover_boot_option *opt)
{
- const struct config *config;
- struct boot_priority *prio;
+ enum device_type type = opt->device->device->type;
+ const char *uuid = opt->device->uuid;
+ struct autoboot_option *auto_opt;
unsigned int i;
- config = config_get();
+ 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;
- for (i = 0; i < config->n_boot_priorities; i++) {
- prio = &config->boot_priorities[i];
- if (priority_match(prio, opt))
- return prio->priority;
+ 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 0;
+ return -1;
}
-static bool device_allows_default(struct discover_device *dev)
+/*
+ * We have different priorities to resolve conflicts between boot options that
+ * report to be the default for their device. This function assigns a priority
+ * for these options.
+ */
+static enum default_priority default_option_priority(
+ struct discover_boot_option *opt)
{
- const char *dev_str;
+ const struct config *config;
- dev_str = config_get()->boot_device;
+ config = config_get();
- if (!dev_str || !strlen(dev_str))
- return true;
+ /* We give highest priority to IPMI-configured boot options. If
+ * we have an IPMI bootdev configuration set, then we don't allow
+ * any other defaults */
+ if (config->ipmi_bootdev) {
+ bool ipmi_match = ipmi_device_type_matches(config->ipmi_bootdev,
+ opt->device->device->type);
+ if (ipmi_match)
+ return DEFAULT_PRIORITY_REMOTE;
+
+ pb_debug("handler: disabled default priority due to "
+ "non-matching IPMI type %x\n",
+ config->ipmi_bootdev);
+ return DEFAULT_PRIORITY_DISABLED;
+ }
- /* default devices are specified by UUIDs at present */
- if (strcmp(dev->uuid, dev_str))
- return false;
+ /* 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;
+ }
- return true;
+ /* 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;
}
static void set_default(struct device_handler *handler,
struct discover_boot_option *opt)
{
- int new_prio;
+ enum default_priority cur_prio, new_prio;
if (!handler->autoboot_enabled)
return;
- /* do we allow default-booting from this device? */
- if (!device_allows_default(opt->device))
- return;
+ pb_debug("handler: new default option: %s\n", opt->option->id);
new_prio = default_option_priority(opt);
- /* A negative priority indicates that we don't want to boot this device
- * by default */
- if (new_prio < 0)
+ /* Anything outside our range prevents a default boot */
+ if (new_prio >= DEFAULT_PRIORITY_DISABLED)
return;
+ pb_debug("handler: calculated priority %d\n", new_prio);
+
/* Resolve any conflicts: if we have a new default option, it only
* replaces the current if it has a higher priority. */
if (handler->default_boot_option) {
- int cur_prio;
- cur_prio = default_option_priority(
- handler->default_boot_option);
+ cur_prio = handler->default_boot_option_priority;
- if (new_prio > cur_prio) {
+ if (new_prio < cur_prio) {
+ pb_log("handler: new prio %d beats "
+ "old prio %d for %s\n",
+ new_prio, cur_prio,
+ handler->default_boot_option
+ ->option->id);
handler->default_boot_option = opt;
+ handler->default_boot_option_priority = new_prio;
/* extend the timeout a little, so the user sees some
* indication of the change */
handler->sec_to_boot += 2;
handler->sec_to_boot = config_get()->autoboot_timeout_sec;
handler->default_boot_option = opt;
+ handler->default_boot_option_priority = new_prio;
- pb_log("Boot option %s set as default, timeout %u sec.\n",
+ pb_log("handler: boot option %s set as default, timeout %u sec.\n",
opt->option->id, handler->sec_to_boot);
default_timeout(handler);
ctx = talloc_zero(handler, struct discover_context);
ctx->device = device;
+ ctx->network = handler->network;
list_init(&ctx->boot_options);
return ctx;
struct discover_device *dev)
{
struct discover_context *ctx;
+ struct boot_status *status;
int rc;
+ status = talloc_zero(handler, struct boot_status);
+ status->type = BOOT_STATUS_INFO;
+ status->message = talloc_asprintf(status, "Processing %s device %s",
+ device_type_display_name(dev->device->type),
+ dev->device->id);
+ boot_status(handler, status);
+
process_boot_option_queue(handler);
/* create our context */
device_handler_discover_context_commit(handler, ctx);
out:
+ status->message = talloc_asprintf(status,"Processing %s complete\n",
+ dev->device->id);
+ boot_status(handler, status);
+
+ talloc_free(status);
talloc_free(ctx);
return 0;
struct discover_device *dev, struct event *event)
{
struct discover_context *ctx;
+ struct boot_status *status;
+
+ status = talloc_zero(handler, struct boot_status);
+ status->type = BOOT_STATUS_INFO;
+ status->message = talloc_asprintf(status, "Processing dhcp event on %s",
+ dev->device->id);
+ boot_status(handler, status);
/* create our context */
ctx = device_handler_discover_context_create(handler, dev);
device_handler_discover_context_commit(handler, ctx);
+ status->message = talloc_asprintf(status,"Processing %s complete\n",
+ dev->device->id);
+ boot_status(handler, status);
+
+ talloc_free(status);
talloc_free(ctx);
return 0;
struct discover_device *dev, struct pb_url *url)
{
struct discover_context *ctx;
+ struct boot_status *status;
+
+ status = talloc_zero(handler, struct boot_status);
+ status->type = BOOT_STATUS_INFO;
+ status->message = talloc_asprintf(status, "Processing user config");
+ boot_status(handler, status);
/* create our context */
ctx = device_handler_discover_context_create(handler, dev);
device_handler_discover_context_commit(handler, ctx);
+ status->message = talloc_asprintf(status,
+ "Processing user config complete");
+ boot_status(handler, status);
+
+ talloc_free(status);
talloc_free(ctx);
return 0;
if (handler->pending_boot)
boot_cancel(handler->pending_boot);
+
+ platform_pre_boot();
+
handler->pending_boot = boot(handler, opt, cmd, handler->dry_run,
boot_status, handler);
handler->pending_boot_is_default = false;
status.type = BOOT_STATUS_INFO;
status.progress = -1;
status.detail = NULL;
- status.message = "Default boot cancelled";
+ status.message = _("Default boot cancelled");
discover_server_notify_boot_status(handler->server, &status);
}
device_handler_reinit(handler);
}
+static char *device_from_addr(void *ctx, struct pb_url *url)
+{
+ char *ipaddr, *buf, *tok, *dev = NULL;
+ const char *delim = " ";
+ struct sockaddr_in *ip;
+ struct sockaddr_in si;
+ struct addrinfo *res;
+ struct process *p;
+ int rc;
+
+ /* Note: IPv4 only */
+ rc = inet_pton(AF_INET, url->host, &(si.sin_addr));
+ if (rc > 0) {
+ ipaddr = url->host;
+ } else {
+ /* need to turn hostname into a valid IP */
+ rc = getaddrinfo(url->host, NULL, NULL, &res);
+ if (rc) {
+ pb_debug("%s: Invalid URL\n",__func__);
+ return NULL;
+ }
+ ipaddr = talloc_array(ctx,char,INET_ADDRSTRLEN);
+ ip = (struct sockaddr_in *) res->ai_addr;
+ inet_ntop(AF_INET, &(ip->sin_addr), ipaddr, INET_ADDRSTRLEN);
+ freeaddrinfo(res);
+ }
+
+ const char *argv[] = {
+ pb_system_apps.ip,
+ "route", "show", "to", "match",
+ ipaddr,
+ NULL
+ };
+
+ p = process_create(ctx);
+
+ p->path = pb_system_apps.ip;
+ p->argv = argv;
+ p->keep_stdout = true;
+
+ rc = process_run_sync(p);
+
+ if (rc) {
+ /* ip has complained for some reason; most likely
+ * there is no route to the host - bail out */
+ pb_debug("%s: No route to %s\n",__func__,url->host);
+ return NULL;
+ }
+
+ buf = p->stdout_buf;
+ /* If a route is found, ip-route output will be of the form
+ * "... dev DEVNAME ... " */
+ tok = strtok(buf, delim);
+ while (tok) {
+ if (!strcmp(tok, "dev")) {
+ tok = strtok(NULL, delim);
+ dev = talloc_strdup(ctx, tok);
+ break;
+ }
+ tok = strtok(NULL, delim);
+ }
+
+ process_release(p);
+ if (dev)
+ pb_debug("%s: Found interface '%s'\n", __func__,dev);
+ return dev;
+}
+
+
+void device_handler_process_url(struct device_handler *handler,
+ const char *url)
+{
+ struct discover_context *ctx;
+ struct discover_device *dev;
+ struct boot_status *status;
+ struct pb_url *pb_url;
+ struct event *event;
+ struct param *param;
+
+ status = talloc(handler, struct boot_status);
+
+ status->type = BOOT_STATUS_ERROR;
+ status->progress = 0;
+ status->detail = talloc_asprintf(status,
+ _("Received config URL %s"), url);
+
+ if (!handler->network) {
+ status->message = talloc_asprintf(handler,
+ _("No network configured"));
+ goto msg;
+ }
+
+ event = talloc(handler, struct event);
+ event->type = EVENT_TYPE_USER;
+ event->action = EVENT_ACTION_CONF;
+
+ event->params = talloc_array(event, struct param, 1);
+ param = &event->params[0];
+ param->name = talloc_strdup(event, "pxeconffile");
+ param->value = talloc_strdup(event, url);
+ event->n_params = 1;
+
+ pb_url = pb_url_parse(event, event->params->value);
+ if (!pb_url || !pb_url->host) {
+ status->message = talloc_asprintf(handler,
+ _("Invalid config URL!"));
+ goto msg;
+ }
+
+ event->device = device_from_addr(event, pb_url);
+ if (!event->device) {
+ status->message = talloc_asprintf(status,
+ _("Unable to route to host %s"),
+ pb_url->host);
+ goto msg;
+ }
+
+ dev = discover_device_create(handler, event->device);
+ ctx = device_handler_discover_context_create(handler, dev);
+ ctx->event = event;
+
+ iterate_parsers(ctx);
+
+ device_handler_discover_context_commit(handler, ctx);
+
+ talloc_free(ctx);
+
+ status->type = BOOT_STATUS_INFO;
+ status->message = talloc_asprintf(status, _("Config file %s parsed"),
+ pb_url->file);
+msg:
+ boot_status(handler, status);
+ talloc_free(status);
+}
+
#ifndef PETITBOOT_TEST
static void device_handler_update_lang(const char *lang)
handler->dry_run);
}
+static const char *fs_parameters(unsigned int rw_flags, const char *fstype)
+{
+ if ((rw_flags | MS_RDONLY) != MS_RDONLY)
+ return "";
+
+ /* Avoid writing back to the disk on journaled filesystems */
+ if (!strncmp(fstype, "ext4", strlen("ext4")))
+ return "norecovery";
+ if (!strncmp(fstype, "xfs", strlen("xfs")))
+ return "norecovery";
+
+ return "";
+}
+
static bool check_existing_mount(struct discover_device *dev)
{
struct stat devstat, mntstat;
if (!fstype)
return 0;
+ /* ext3 treats the norecovery option as an error, so mount the device
+ * as an ext4 filesystem instead */
+ if (!strncmp(fstype, "ext3", strlen("ext3"))) {
+ pb_debug("Mounting ext3 filesystem as ext4\n");
+ fstype = talloc_asprintf(dev, "ext4");
+ }
+
dev->mount_path = join_paths(dev, mount_base(),
dev->device_path);
pb_log("mounting device %s read-only\n", dev->device_path);
errno = 0;
rc = mount(dev->device_path, dev->mount_path, fstype,
- MS_RDONLY | MS_SILENT, "");
+ MS_RDONLY | MS_SILENT,
+ fs_parameters(MS_RDONLY, fstype));
if (!rc) {
dev->mounted = true;
dev->mounted_rw = false;
int device_request_write(struct discover_device *dev, bool *release)
{
+ const char *fstype;
int rc;
*release = false;
if (dev->mounted_rw)
return 0;
+ fstype = discover_device_get_param(dev, "ID_FS_TYPE");
+
pb_log("remounting device %s read-write\n", dev->device_path);
- rc = mount(dev->device_path, dev->mount_path, "",
- MS_REMOUNT | MS_SILENT, "");
- if (rc)
+
+ rc = umount(dev->mount_path);
+ if (rc) {
+ pb_log("Failed to unmount %s\n", dev->mount_path);
return -1;
+ }
+ rc = mount(dev->device_path, dev->mount_path, fstype,
+ MS_SILENT,
+ fs_parameters(MS_REMOUNT, fstype));
+ if (rc)
+ goto mount_ro;
dev->mounted_rw = true;
*release = true;
return 0;
+
+mount_ro:
+ pb_log("Unable to remount device %s read-write\n", dev->device_path);
+ rc = mount(dev->device_path, dev->mount_path, fstype,
+ MS_RDONLY | MS_SILENT,
+ fs_parameters(MS_RDONLY, fstype));
+ if (rc)
+ pb_log("Unable to recover mount for %s\n", dev->device_path);
+ return -1;
}
void device_release_write(struct discover_device *dev, bool release)
{
+ const char *fstype;
+
if (!release)
return;
+ fstype = discover_device_get_param(dev, "ID_FS_TYPE");
+
pb_log("remounting device %s read-only\n", dev->device_path);
mount(dev->device_path, dev->mount_path, "",
- MS_REMOUNT | MS_RDONLY | MS_SILENT, "");
+ MS_REMOUNT | MS_RDONLY | MS_SILENT,
+ fs_parameters(MS_RDONLY, fstype));
dev->mounted_rw = false;
}
projects / petitboot / blobdiff