uint32_t is_running : 1;
uint32_t console_is_redirected : 1;
- uint32_t change_root_to_current_directory : 1;
};
static bool ply_terminal_session_open_console (ply_terminal_session_t *session);
if (!ply_terminal_session_open_console (session))
return false;
- if (session->change_root_to_current_directory)
- {
- if (chroot (".") < 0)
- return false;
- }
-
if (look_in_path)
execvp (session->argv[0], session->argv);
else
session->logger = ply_logger_new ();
session->is_running = false;
session->console_is_redirected = false;
- session->change_root_to_current_directory = false;
return session;
}
should_redirect_console =
(flags & PLY_TERMINAL_SESSION_FLAGS_REDIRECT_CONSOLE) != 0;
- session->change_root_to_current_directory =
- (flags & PLY_TERMINAL_SESSION_FLAGS_CHANGE_ROOT_TO_CURRENT_DIRECTORY) != 0;
-
ply_trace ("creating terminal device");
if (!ply_terminal_create_device (session->terminal))
return false;
should_redirect_console =
(flags & PLY_TERMINAL_SESSION_FLAGS_REDIRECT_CONSOLE) != 0;
- session->change_root_to_current_directory =
- (flags & PLY_TERMINAL_SESSION_FLAGS_CHANGE_ROOT_TO_CURRENT_DIRECTORY) != 0;
-
ply_terminal_set_fd(session->terminal, ptmx);
if (should_redirect_console)
PLY_TERMINAL_SESSION_FLAGS_RUN_IN_PARENT = 0x1,
PLY_TERMINAL_SESSION_FLAGS_LOOK_IN_PATH = 0x2,
PLY_TERMINAL_SESSION_FLAGS_REDIRECT_CONSOLE = 0x4,
- PLY_TERMINAL_SESSION_FLAGS_CHANGE_ROOT_TO_CURRENT_DIRECTORY = 0x8,
} ply_terminal_session_flags_t;
#ifndef PLY_HIDE_FUNCTION_DECLARATIONS
return true;
}
-static bool
-ply_copy_subdirectory (const char *subdirectory,
- const char *parent,
- const char *destination)
-{
- char *source, *target;
-
- source = NULL;
- asprintf (&source, "%s/%s", parent, subdirectory);
-
- target = NULL;
- asprintf (&target, "%s/%s", destination, subdirectory);
-
- if (!ply_copy_directory (source, target))
- {
- ply_save_errno ();
- free (source);
- free (target);
- ply_restore_errno ();
- return false;
- }
- free (source);
- free (target);
-
- return true;
-}
-
-bool
-ply_copy_file (const char *source,
- const char *destination)
-{
- char buffer[4096];
- int source_fd, destination_fd;
- struct stat file_info;
- bool file_copied;
-
- file_copied = false;
- source_fd = -1;
- destination_fd = -1;
-
- ply_trace ("opening source '%s'", source);
- source_fd = open (source, O_RDONLY | O_NOFOLLOW);
-
- if (source_fd < 0)
- goto out;
-
- ply_trace ("stating fd %d", source_fd);
- if (fstat (source_fd, &file_info) < 0)
- goto out;
-
- ply_trace ("opening dest '%s'", destination);
- destination_fd = open (destination, O_WRONLY | O_NOFOLLOW | O_CREAT,
- file_info.st_mode);
-
- if (destination_fd < 0)
- goto out;
-
- while ("we want to copy the file")
- {
- size_t bytes_read;
- bytes_read = read (source_fd, buffer, sizeof (buffer));
-
- if (bytes_read < 0)
- {
- if (errno == EINTR)
- continue;
-
- goto out;
- }
- else if (bytes_read == 0)
- break;
-
- if (!ply_write (destination_fd, buffer, bytes_read))
- goto out;
- }
-
- file_copied = true;
-out:
- ply_save_errno ();
- close (source_fd);
- close (destination_fd);
- ply_restore_errno ();
-
- return file_copied;
-}
-
-static bool
-ply_copy_file_in_directory (const char *filename,
- const char *parent,
- const char *destination)
-{
- char *source, *target;
-
- ply_trace ("copying '%s' in '%s' to '%s'", filename, parent, destination);
- source = NULL;
- asprintf (&source, "%s/%s", parent, filename);
-
- target = NULL;
- asprintf (&target, "%s/%s", destination, filename);
-
- if (!ply_copy_file (source, target))
- {
- ply_save_errno ();
- free (source);
- free (target);
- ply_restore_errno ();
- return false;
- }
- free (source);
- free (target);
-
- return true;
-}
-
-bool
-ply_copy_directory (const char *source,
- const char *destination)
-{
- DIR *dir;
- struct dirent *entry;
- char *full_path;
-
- assert (source != NULL);
- assert (source[0] != '\0');
- assert (destination != NULL);
- assert (destination[0] != '\0');
-
- dir = opendir (source);
-
- if (dir == NULL)
- return false;
-
- if (!ply_create_directory (destination))
- return false;
-
- while ((entry = readdir (dir)) != NULL)
- {
- if (strcmp (entry->d_name, ".") == 0)
- continue;
-
- if (strcmp (entry->d_name, "..") == 0)
- continue;
-
- full_path = NULL;
- asprintf (&full_path, "%s/%s", source, entry->d_name);
-
- if (ply_directory_exists (full_path))
- {
- if (!ply_copy_subdirectory (entry->d_name, source, destination))
- {
- ply_save_errno ();
- free (full_path);
- ply_restore_errno ();
- return false;
- }
- }
- else if (ply_file_exists (full_path))
- {
- if (!ply_copy_file_in_directory (entry->d_name, source, destination))
- {
- ply_save_errno ();
- free (full_path);
- ply_restore_errno ();
- return false;
- }
- }
-
- free (full_path);
- }
-
- assert (entry == NULL);
- closedir (dir);
-
- return true;
-}
-
-bool
-ply_unmount_filesystem (const char *directory)
-{
- if (umount2 (directory, PLY_SUPER_SECRET_LAZY_UNMOUNT_FLAG) < 0)
- return false;
-
- return true;
-}
-
-bool ply_mount_tmpfs (const char *directory)
-{
- assert (directory != NULL);
- assert (directory[0] != '\0');
-
- if (mount ("none", directory, "tmpfs", 0, NULL) < 0)
- return false;
-
- return true;
-}
-
-bool
-ply_move_mount (const char *source, const char *destination)
-{
- int rc;
- ply_trace ("moving mount at \"%s\" to \"%s\"", source, destination);
-
- if (mount(source, destination, NULL, MS_MOVE, NULL) < 0)
- {
- ply_trace("mount(\"%s\", \"%s\", NULL, MS_MOVE, NULL): error: %m", source, destination);
- return false;
- }
- return true;
-}
-
ply_daemon_handle_t *
ply_create_daemon (void)
{
void ply_close_module (ply_module_handle_t *handle);
bool ply_create_directory (const char *directory);
-bool ply_copy_file (const char *source, const char *destination);
-bool ply_copy_directory (const char *source, const char *destination);
-bool ply_unmount_filesystem (const char *directory);
-bool ply_move_mount (const char *source, const char *destination);
-bool ply_mount_tmpfs (const char *directory);
ply_daemon_handle_t *ply_create_daemon (void);
bool ply_detach_daemon (ply_daemon_handle_t *handle,
#include "config.h"
#include <sys/stat.h>
-#include <sys/mount.h>
#include <sys/types.h>
#include <limits.h>
#include <dirent.h>
#include "ply-terminal-session.h"
#include "ply-utils.h"
-#ifndef PLY_WORKING_DIRECTORY
-#define PLY_WORKING_DIRECTORY "/var/run/plymouth"
-#endif
-
#ifndef PLY_MAX_COMMAND_LINE_SIZE
#define PLY_MAX_COMMAND_LINE_SIZE 512
#endif
on_system_initialized (state_t *state)
{
- ply_trace ("system now initialized, ready to mount root filesystem");
- mknod ("/dev/root", 0600 | S_IFBLK, makedev (253, 0));
- mount("/dev/root", "/sysroot", "ext3", 0, NULL);
- ply_terminal_session_open_log (state->session,
- "/sysroot/var/log/bootmessages.log");
+ ply_trace ("system now initialized, preparing for root filesystem switch");
+ chdir("/sysroot");
+ chroot(".");
}
static void
static void
on_quit (state_t *state)
{
- ply_trace ("time to quit, closing log");
+ ply_trace ("time to quit, writing boot.log");
+ ply_terminal_session_open_log (state->session,
+ "/var/log/boot.log");
ply_terminal_session_close_log (state->session);
ply_trace ("hiding splash");
if (state->boot_splash != NULL)
ply_boot_splash_hide (state->boot_splash);
ply_trace ("exiting event loop");
ply_event_loop_exit (state->loop, 0);
-
- ply_trace ("unmounting temporary filesystem mounts");
- ply_unmount_filesystem (PLY_WORKING_DIRECTORY);
}
static ply_boot_server_t *
flags = 0;
flags |= PLY_TERMINAL_SESSION_FLAGS_REDIRECT_CONSOLE;
- flags |= PLY_TERMINAL_SESSION_FLAGS_CHANGE_ROOT_TO_CURRENT_DIRECTORY;
ply_trace ("creating terminal session for current terminal");
session = ply_terminal_session_new (NULL);
return session;
}
-static bool
-create_working_directory (state_t *state)
-{
- ply_trace ("creating working directory '%s'",
- PLY_WORKING_DIRECTORY);
- if (!ply_create_detachable_directory (PLY_WORKING_DIRECTORY))
- return false;
-
- ply_trace ("changing to working directory");
- if (chdir (PLY_WORKING_DIRECTORY) < 0)
- return false;
-
- ply_trace ("creating proc subdirectory");
- if (!ply_create_directory ("proc"))
- return false;
-
- ply_trace ("creating dev subdirectory");
- if (!ply_create_directory ("dev"))
- return false;
-
- ply_trace ("creating dev/pts subdirectory");
- if (!ply_create_directory ("dev/pts"))
- return false;
-
- ply_trace ("creating usr/share/plymouth subdirectory");
- if (!ply_create_directory ("usr/share/plymouth"))
- return false;
-
- ply_trace ("creating " PLYMOUTH_PLUGIN_PATH " subdirectory");
- if (!ply_create_directory (PLYMOUTH_PLUGIN_PATH + 1))
- return false;
-
- ply_trace ("creating sysroot subdirectory");
- if (!ply_create_directory ("sysroot"))
- return false;
-
- return true;
-}
-
static bool
get_kernel_command_line (state_t *state)
{
return true;
}
-static bool
-copy_data_files (state_t *state)
-{
- char *logo_dir, *p;
-
- ply_trace ("copying data files");
- if (!ply_copy_directory ("/usr/share/plymouth",
- "usr/share/plymouth"))
- return false;
- ply_trace ("copied data files");
-
- ply_trace ("copying plugins");
- if (!ply_copy_directory (PLYMOUTH_PLUGIN_PATH,
- PLYMOUTH_PLUGIN_PATH + 1))
- return false;
-
- ply_trace ("copying logo");
- logo_dir = strdup (PLYMOUTH_LOGO_FILE);
- p = strrchr (logo_dir, '/');
-
- if (p != NULL)
- *p = '\0';
-
- if (!ply_create_directory (logo_dir + 1))
- {
- free (logo_dir);
- return false;
- }
- free (logo_dir);
-
- if (!ply_copy_file (PLYMOUTH_LOGO_FILE,
- PLYMOUTH_LOGO_FILE + 1))
- return false;
- ply_trace ("copied plugins files");
-
- return true;
-}
-
static void
check_verbosity (state_t *state)
{
initialize_environment (state_t *state)
{
ply_trace ("initializing minimal work environment");
- if (!create_working_directory (state))
- return false;
-
- if (!copy_data_files (state))
- return false;
if (!get_kernel_command_line (state))
return false;
state.loop = ply_event_loop_new ();
/* before do anything we need to make sure we have a working
- * environment. /proc needs to be mounted and certain devices need
- * to be accessible (like the framebuffer device, pseudoterminal
- * devices, etc)
+ * environment.
*/
if (!initialize_environment (&state))
{
ply_error ("could not setup basic operating environment: %m");
- ply_list_directory (PLY_WORKING_DIRECTORY);
ply_detach_daemon (daemon_handle, EX_OSERR);
return EX_OSERR;
}
projects / thirdparty / plymouth.git / commitdiff
