From de25dab468737adae2c3f5d45a8bd7eb3fdc83e6 Mon Sep 17 00:00:00 2001 From: Mystery Man Date: Sun, 18 Dec 2005 12:19:48 +0000 Subject: This commit was manufactured by cvs2svn to create tag 'V10_4_6_1mdk'. --- mdk-stage1/stage1.c | 649 ---------------------------------------------------- 1 file changed, 649 deletions(-) delete mode 100644 mdk-stage1/stage1.c (limited to 'mdk-stage1/stage1.c') diff --git a/mdk-stage1/stage1.c b/mdk-stage1/stage1.c deleted file mode 100644 index 6024f20ca..000000000 --- a/mdk-stage1/stage1.c +++ /dev/null @@ -1,649 +0,0 @@ -/* - * Guillaume Cottenceau (was gc@mandrakesoft.com) - * - * Copyright 2000-2004 Mandrakesoft - * - * - * This software may be freely redistributed under the terms of the GNU - * public license. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -/* - * Portions from Erik Troan (ewt@redhat.com) - * - * Copyright 1996 Red Hat Software - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -_syscall2(int,pivot_root,const char *,new_root,const char *,put_old) - -#include "stage1.h" - -#include "log.h" -#include "probing.h" -#include "frontend.h" -#include "modules.h" -#include "tools.h" -#include "automatic.h" -#include "mount.h" -#include "insmod.h" -#include "thirdparty.h" - -#ifdef ENABLE_PCMCIA -#include "pcmcia_/pcmcia.h" -#endif - -#ifndef DISABLE_CDROM -#include "cdrom.h" -#endif - -#ifndef DISABLE_NETWORK -#include "network.h" -#endif - -#ifndef DISABLE_DISK -#include "disk.h" -#endif - - -/************************************************************ - * globals */ - - - -void fatal_error(char *msg) -{ - printf("FATAL ERROR IN STAGE1: %s\n\nI can't recover from this.\nYou may reboot your system.\n", msg); - while (1); -} - - -/************************************************************ - * special frontend functs - * (the principle is to not pollute frontend code with stage1-specific stuff) */ - -void stg1_error_message(char *msg, ...) -{ - va_list args; - va_start(args, msg); - unset_automatic(); - verror_message(msg, args); - va_end(args); -} - -void stg1_fatal_message(char *msg, ...) -{ - va_list args; - va_start(args, msg); - unset_automatic(); - verror_message(msg, args); - va_end(args); - exit(1); -} - -void stg1_info_message(char *msg, ...) -{ - va_list args; - va_start(args, msg); - if (IS_AUTOMATIC) { - vlog_message(msg, args); - return; - } - vinfo_message(msg, args); - va_end(args); -} - - -#ifdef SPAWN_SHELL -static pid_t shell_pid = 0; - -/************************************************************ - * spawns a shell on console #2 */ -static void spawn_shell(void) -{ - int fd; - char * shell_name[] = { "/tmp/sh", NULL }; - - log_message("spawning a shell"); - - if (!IS_TESTING) { - fd = open("/dev/tty2", O_RDWR); - if (fd == -1) { - log_message("cannot open /dev/tty2 -- no shell will be provided"); - return; - } - else if (access(shell_name[0], X_OK)) { - log_message("cannot open shell - %s doesn't exist", shell_name[0]); - return; - } - - if (!(shell_pid = fork())) { - dup2(fd, 0); - dup2(fd, 1); - dup2(fd, 2); - - close(fd); - setsid(); - if (ioctl(0, TIOCSCTTY, NULL)) - log_perror("could not set new controlling tty"); - - execv(shell_name[0], shell_name); - log_message("execve of %s failed: %s", shell_name[0], strerror(errno)); - exit(-1); - } - - close(fd); - } -} -#endif - -#ifdef SPAWN_INTERACTIVE -char * interactive_fifo = "/tmp/stage1-fifo"; -static pid_t interactive_pid = 0; - -/* spawns my small interactive on console #6 */ -static void spawn_interactive(void) -{ - int fd; - char * dev = "/dev/tty6"; - - printf("spawning my interactive on %s\n", dev); - - if (!IS_TESTING) { - fd = open(dev, O_RDWR); - if (fd == -1) { - printf("cannot open %s -- no interactive\n", dev); - return; - } - - if (mkfifo(interactive_fifo, O_RDWR)) { - printf("cannot create fifo -- no interactive\n"); - return; - } - - if (!(interactive_pid = fork())) { - int fif_out; - - dup2(fd, 0); - dup2(fd, 1); - dup2(fd, 2); - - close(fd); - setsid(); - if (ioctl(0, TIOCSCTTY, NULL)) - perror("could not set new controlling tty"); - - fif_out = open(interactive_fifo, O_WRONLY); - printf("Please enter your command (availables: [+,-] [rescue]).\n"); - - while (1) { - char s[50]; - int i = 0; - printf("? "); - fflush(stdout); - read(0, &(s[i++]), 1); - fcntl(0, F_SETFL, O_NONBLOCK); - while (read(0, &(s[i++]), 1) > 0 && i < sizeof(s)); - fcntl(0, F_SETFL, 0); - write(fif_out, s, i-2); - printf("Ok.\n"); - } - } - - close(fd); - } -} -#endif - - -#ifdef ENABLE_PCMCIA -static void handle_pcmcia(void) -{ - char * pcmcia_adapter; - if (kernel_version() == 2) { - stg1_error_message("We now use kernel pcmcia support and this won't work with a 2.2 kernel."); - return; - } - - pcmcia_adapter = pcmcia_probe(); - if (!pcmcia_adapter) { - log_message("no pcmcia adapter found"); - return; - } - my_insmod("pcmcia_core", ANY_DRIVER_TYPE, NULL, 0); - my_insmod(pcmcia_adapter, ANY_DRIVER_TYPE, NULL, 0); - /* ds is an alias for pcmcia in recent 2.6 kernels - but we don't have modules.alias in install, so try to load both */ - my_insmod("ds", ANY_DRIVER_TYPE, NULL, 0); - my_insmod("pcmcia", ANY_DRIVER_TYPE, NULL, 0); - - /* call to cardmgr takes time, let's use the wait message */ - wait_message("Enabling PCMCIA extension cards..."); - log_message("cardmgr rc: %d", cardmgr_call()); - remove_wait_message(); - - add_to_env("PCMCIA", pcmcia_adapter); -} -#endif - - -/************************************************************ - */ - -static void method_select_and_prepare(void) -{ - enum return_type results; - char * choice; - char * means[10], * means_auto[10]; - int i; - -#ifndef DISABLE_DISK - char * disk_install = "Hard disk"; char * disk_install_auto = "disk"; -#endif -#ifndef DISABLE_CDROM - char * cdrom_install = "CDROM drive"; char * cdrom_install_auto = "cdrom"; -#endif -#ifndef DISABLE_NETWORK - char * network_nfs_install = "NFS server"; char * network_nfs_install_auto = "nfs"; - char * network_ftp_install = "FTP server"; char * network_ftp_install_auto = "ftp"; - char * network_http_install = "HTTP server"; char * network_http_install_auto = "http"; -#ifndef DISABLE_KA - char * network_ka_install = "KA server"; char * network_ka_install_auto = "ka"; -#endif -#endif - char * thirdparty_install = "Load third party modules"; char * thirdparty_install_auto = "thirdparty"; - - i = 0; -#ifndef DISABLE_NETWORK - means[i] = network_nfs_install; means_auto[i++] = network_nfs_install_auto; - means[i] = network_ftp_install; means_auto[i++] = network_ftp_install_auto; - means[i] = network_http_install; means_auto[i++] = network_http_install_auto; -#ifndef DISABLE_KA - means[i] = network_ka_install; means_auto[i++] = network_ka_install_auto; -#endif -#endif -#ifndef DISABLE_CDROM - means[i] = cdrom_install; means_auto[i++] = cdrom_install_auto; - allow_additional_modules_floppy = 0; -#endif -#ifndef DISABLE_DISK - means[i] = disk_install; means_auto[i++] = disk_install_auto; - allow_additional_modules_floppy = 0; -#endif - means[i] = thirdparty_install; means_auto[i++] = thirdparty_install_auto; - means[i] = NULL; - - unlink(IMAGE_LOCATION); - rmdir(IMAGE_LOCATION); /* useful if we change the method, eg: we have automatic:cdrom but go back to nfs */ - - results = ask_from_list_auto("Please choose the installation method.", means, &choice, "method", means_auto); - - if (results != RETURN_OK) - return method_select_and_prepare(); - -#ifndef DISABLE_CDROM - if (!strcmp(choice, cdrom_install)) - results = cdrom_prepare(); -#endif - -#ifndef DISABLE_DISK - if (!strcmp(choice, disk_install)) - results = disk_prepare(); -#endif - -#ifndef DISABLE_NETWORK - if (!strcmp(choice, network_nfs_install)) - results = nfs_prepare(); - -#ifndef MANDRAKE_MOVE - if (!strcmp(choice, network_ftp_install)) - results = ftp_prepare(); - - if (!strcmp(choice, network_http_install)) - results = http_prepare(); - -#ifndef DISABLE_KA - if (!strcmp(choice, network_ka_install)) - results = ka_prepare(); -#endif -#endif -#endif - - if (!strcmp(choice, thirdparty_install)) { - thirdparty_load_modules(); - return method_select_and_prepare(); - } - - if (results != RETURN_OK) - return method_select_and_prepare(); - - /* try to find third party modules on the install media */ - thirdparty_load_media_modules(); -} - -static enum return_type create_initial_fs_symlinks(char* symlinks) -{ - FILE *f; - char buf[5000]; - - if (scall(!(f = fopen(symlinks, "rb")), "fopen")) - return RETURN_ERROR; - while (fgets(buf, sizeof(buf), f)) { - char oldpath[500], newpath[500], newpathfinal[500]; - buf[strlen(buf)-1] = '\0'; // trim \n - if (sscanf(buf, "%s %s", oldpath, newpath) != 2) { - sprintf(oldpath, "%s%s", STAGE2_LOCATION_ROOTED, buf); - sprintf(newpathfinal, "%s%s", SLASH_LOCATION, buf); - } else { - sprintf(newpathfinal, "%s%s", SLASH_LOCATION, newpath); - } - log_message("creating symlink %s -> %s", oldpath, newpathfinal); - if (scall(symlink(oldpath, newpathfinal), "symlink")) - return RETURN_ERROR; - } - fclose(f); - return RETURN_OK; -} - -static enum return_type create_initial_fs_devices(char* devices) -{ - FILE *f; - char buf[5000]; - - // need to create the few devices needed to start up stage2 in a decent manner, we can't symlink or they will keep CD busy - if (scall(mkdir(SLASH_LOCATION "/dev", 0755), "mkdir")) - return RETURN_ERROR; - if (scall(!(f = fopen(devices, "rb")), "fopen")) - return RETURN_ERROR; - while (fgets(buf, sizeof(buf), f)) { - char name[500], path[500], type; - int major, minor; - sscanf(buf, "%s %c %d %d", name, &type, &major, &minor); - sprintf(path, "%s%s", SLASH_LOCATION, name); - log_message("creating device %s %c %d %d", path, type, major, minor); - if (scall(mknod(path, (type == 'c' ? S_IFCHR : S_IFBLK) | 0600, makedev(major, minor)), "mknod")) - return RETURN_ERROR; - } - fclose(f); - return RETURN_OK; -} - -#ifdef MANDRAKE_MOVE -static enum return_type handle_move_clp(char* clp_name, char* live, char* location_live, char* location_mount, int* is_symlink, int preload) -{ - if (mount_clp_may_preload(clp_name, location_mount, preload) == RETURN_OK) { - return RETURN_OK; - } else { - char *full_live = asprintf_("%s%s", location_live, live); - log_message("no %s found (or disabled), trying to fallback on plain tree", clp_name); - if (!access(full_live, R_OK)) { - if (scall(symlink(location_live, location_mount), "symlink")) - return RETURN_ERROR; - *is_symlink = 1; - return RETURN_OK; - } else { - log_message("move: can't find %s nor %s, proceeding hoping files will be there", clp_name, full_live); - return RETURN_OK; - } - } -} - -int mandrake_move_post(void) -{ - int boot__real_is_symlink_to_raw = 0; - int always__real_is_symlink_to_raw = 0; - int totem__real_is_symlink_to_raw = 0; - int main__real_is_symlink_to_raw = 0; - - if (handle_move_clp("live_tree_boot.clp", "/usr/bin/runstage2.pl", - IMAGE_LOCATION "/live_tree_boot", BOOT_LOCATION, - &boot__real_is_symlink_to_raw, 1) != RETURN_OK) - return RETURN_ERROR; - - if (handle_move_clp("live_tree_always.clp", "/bin/bash", - IMAGE_LOCATION "/live_tree_always", ALWAYS_LOCATION, - &always__real_is_symlink_to_raw, 1) != RETURN_OK) - return RETURN_ERROR; - - if (handle_move_clp("live_tree_totem.clp", "/usr/bin/totem", - IMAGE_LOCATION "/live_tree_totem", TOTEM_LOCATION, - &totem__real_is_symlink_to_raw, 1) != RETURN_OK) - return RETURN_ERROR; - - if (handle_move_clp("live_tree.clp", "/etc/fstab", - IMAGE_LOCATION "/live_tree", STAGE2_LOCATION, - &main__real_is_symlink_to_raw, 0) != RETURN_OK) - return RETURN_ERROR; - - // in case we didn't mount any clp, because gzloop.o is not available later in /lib/modules - my_insmod("gzloop", ANY_DRIVER_TYPE, NULL, 0); - - // hardcoded :( - if (!access(TOTEM_LOCATION, R_OK)) { - if (scall(symlink("/image_totem/usr", SLASH_LOCATION "/usr"), "symlink")) - return RETURN_ERROR; - } else - // need a fallback in case we don't use image_totem.clp nor live_tree_totem, but we're in -u mode - if (scall(symlink(STAGE2_LOCATION_ROOTED "/usr", SLASH_LOCATION "/usr"), "symlink")) - return RETURN_ERROR; - - if (create_initial_fs_symlinks(STAGE2_LOCATION "/move/symlinks") != RETURN_OK || - create_initial_fs_devices(STAGE2_LOCATION "/move/devices") != RETURN_OK) - return RETURN_ERROR; - - if (boot__real_is_symlink_to_raw) { - if (scall(unlink(BOOT_LOCATION), "unlink")) - return RETURN_ERROR; - if (scall(symlink(IMAGE_LOCATION_REL "/live_tree_boot", BOOT_LOCATION), "symlink")) - return RETURN_ERROR; - } - - if (always__real_is_symlink_to_raw) { - if (scall(unlink(ALWAYS_LOCATION), "unlink")) - return RETURN_ERROR; - if (scall(symlink(IMAGE_LOCATION_REL "/live_tree_always", ALWAYS_LOCATION), "symlink")) - return RETURN_ERROR; - } - - if (totem__real_is_symlink_to_raw) { - if (scall(unlink(TOTEM_LOCATION), "unlink")) - return RETURN_ERROR; - if (scall(symlink(IMAGE_LOCATION_REL "/live_tree_totem", TOTEM_LOCATION), "symlink")) - return RETURN_ERROR; - } - - if (main__real_is_symlink_to_raw) { - if (scall(unlink(STAGE2_LOCATION), "unlink")) - return RETURN_ERROR; - if (scall(symlink(IMAGE_LOCATION_REL "/live_tree", STAGE2_LOCATION), "symlink")) - return RETURN_ERROR; - } - return RETURN_OK; -} -#endif - -int do_pivot_root(void) -{ - int fd; - char rootdev[] = "0x0100"; - - if (IS_DEBUGSTAGE1) - while (1); - - log_message("pivot_rooting"); - // trick so that kernel won't try to mount the root device when initrd exits - if (scall((fd = open("/proc/sys/kernel/real-root-dev", O_WRONLY)) < 0, "open")) - return RETURN_ERROR; - if (scall(write(fd, rootdev, strlen(rootdev)) != (signed)strlen(rootdev), "write")) { - close(fd); - return RETURN_ERROR; - } - close(fd); - - if (scall(mkdir(SLASH_LOCATION "/stage1", 0755), "mkdir")) - return RETURN_ERROR; - - if (scall(pivot_root(SLASH_LOCATION, SLASH_LOCATION "/stage1"), "pivot_root")) - return RETURN_ERROR; - - return RETURN_OK; -} - -void finish_preparing(void) -{ -#ifdef MANDRAKE_MOVE - if (mandrake_move_post() != RETURN_OK) - stg1_fatal_message("Fatal error when launching MandrakeMove."); -#else - mkdir(SLASH_LOCATION "/etc", 0755); - mkdir(SLASH_LOCATION "/var", 0755); - if (IS_RESCUE) { - if (create_initial_fs_symlinks(STAGE2_LOCATION "/usr/share/symlinks") != RETURN_OK) - stg1_fatal_message("Fatal error finishing initialization."); - - } else { - if (create_initial_fs_symlinks(STAGE2_LOCATION "/usr/share/symlinks") != RETURN_OK || - create_initial_fs_devices(STAGE2_LOCATION "/usr/share/devices") != RETURN_OK) - stg1_fatal_message("Fatal error finishing initialization."); - } -#endif - - /* /tmp/syslog is used by the second init, so it must be copied now, not in stage2 */ - /* we remove it to ensure the old one is not copied over it in stage2 */ - copy_file("/tmp/syslog", SLASH_LOCATION "/tmp/syslog", NULL); - unlink("/tmp/syslog"); - copy_file("/etc/resolv.conf", SLASH_LOCATION "/etc/resolv.conf", NULL); - mkdir(SLASH_LOCATION "/modules", 0755); - copy_file("/modules/modules.dep", SLASH_LOCATION "/modules/modules.dep", NULL); - - if (!IS_RESCUE) { - copy_file(STAGE2_LOCATION "/etc/init", SLASH_LOCATION "/etc/init", NULL); - chmod(SLASH_LOCATION "/etc/init", 0755); - } - - umount("/tmp/tmpfs"); - do_pivot_root(); - - if (file_size(IS_RESCUE ? "/sbin/init" : "/etc/init") == -1) - stg1_fatal_message("Fatal error giving hand to second stage."); - -#ifdef SPAWN_SHELL - if (shell_pid != 0) { - int fd; - kill(shell_pid, 9); - fd = open("/dev/tty2", O_RDWR); - write(fd, "Killed\n", 7); - close(fd); - } -#endif -} - -int main(int argc __attribute__ ((unused)), char **argv __attribute__ ((unused)), char **env) -{ -#ifdef ENABLE_NETWORK_STANDALONE - open_log(); - init_frontend(""); - - unlink("/etc/resolv.conf"); /* otherwise it is read-only */ - set_param(MODE_AUTOMATIC); - grab_automatic_params("network:dhcp"); - - intf_select_and_up(); - finish_frontend(); - return 0; -#else - if (getenv("DEBUGSTAGE1")) { - set_param(MODE_DEBUGSTAGE1); - set_param(MODE_TESTING); - } - - if (!IS_TESTING) { - mkdir(SLASH_LOCATION, 0755); - if (scall(mount("none", SLASH_LOCATION, "tmpfs", MS_MGC_VAL, NULL), "mount tmpfs")) - fatal_error("Fatal error initializing."); - mkdir(SLASH_LOCATION "/tmp", 0755); - } - -#ifdef SPAWN_INTERACTIVE - spawn_interactive(); -#endif - - open_log(); - log_message("welcome to the " DISTRIB_NAME " install (mdk-stage1, version " DISTRIB_VERSION " built " __DATE__ " " __TIME__")"); - process_cmdline(); -#ifdef SPAWN_SHELL - spawn_shell(); -#endif - init_modules_insmoding(); - init_frontend("Welcome to " DISTRIB_DESCR ", " __DATE__ " " __TIME__); - - /* load usb interface as soon as possible, helps usb mouse detection in stage2 */ - probe_that_type(USB_CONTROLLERS, BUS_USB); - - if (IS_THIRDPARTY) - thirdparty_load_modules(); - -#ifdef ENABLE_PCMCIA - if (!IS_NOAUTO) - handle_pcmcia(); -#endif - - if (IS_CHANGEDISK) - stg1_info_message("You are starting the installation with an alternate booting method. " - "Please change your disk, and insert the Installation disk."); - - if (IS_RESCUE && total_memory() < MEM_LIMIT_RESCUE) { - stg1_error_message("You are starting the rescue with a low memory configuration. " - "Our experience shows that your system may crash at any point " - "or lock up for no apparent reason. Continue at " - "your own risk. Alternatively, you may reboot your system now."); - } - -#ifdef MANDRAKE_MOVE - if (total_memory() < MEM_LIMIT_MOVE) - stg1_info_message(DISTRIB_NAME " typically needs more than %d Mbytes of memory (detected %d Mbytes). You may proceed, but the machine may crash or lock up for no apparent reason. Continue at your own risk. Alternatively, you may reboot your system now.", - MEM_LIMIT_MOVE, total_memory()); -#endif - method_select_and_prepare(); - -#ifndef MANDRAKE_MOVE - if (access(STAGE2_LOCATION, R_OK) != 0) - if (symlink(IMAGE_LOCATION_REL "/" LIVE_LOCATION_REL, STAGE2_LOCATION) != 0) - log_perror("symlink from " IMAGE_LOCATION_REL "/" LIVE_LOCATION_REL " to " STAGE2_LOCATION " failed"); -#endif - -#ifdef SPAWN_INTERACTIVE - if (interactive_pid != 0) - kill(interactive_pid, 9); -#endif - - finish_preparing(); - - finish_frontend(); - close_log(); - - if (IS_TESTING) - return 0; - else - return 66; -#endif -} -- cgit v1.2.1