--- /dev/null
+// $Id$ --*- c -*--
+
+// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "interface.h"
+
+void
+Iface_print(struct Interface const *iface, int fd)
+{
+
+}
--- /dev/null
+// $Id$ --*- c -*--
+
+// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "interface.h"
+
+bool
+Iface_remove(struct Interface const *iface)
+{
+ return true;
+}
--- /dev/null
+// $Id$ --*- c -*--
+
+// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "mount.h"
+#include "configuration.h"
+#include "undo.h"
+
+#include <pathconfig.h>
+
+#include <lib/internal.h>
+#include <lib_internal/command.h>
+
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <wait.h>
+#include <string.h>
+
+#define ENSC_WRAPPERS_UNISTD 1
+#define ENSC_WRAPPERS_FCNTL 1
+#include <ensc_wrappers/wrappers.h>
+
+static char const *
+findMtab(char const *vserver_mtab)
+{
+ char const *tmp;
+
+ if (utilvserver_isFile(vserver_mtab, true)) return vserver_mtab;
+
+ tmp=CONFDIR "/.defaults/init/mtab";
+ if (utilvserver_isFile(tmp, true)) return tmp;
+
+ tmp=PKGLIBDEFAULTDIR "/mtab";
+ if (utilvserver_isFile(tmp, true)) return tmp;
+
+ return 0;
+}
+
+static void
+initMtab(struct Configuration const *cfg)
+{
+ ENSC_PI_DECLARE(mtab_subpath, "apps/init/mtab");
+ PathInfo mtab_path = cfg->cfgdir;
+ char mtab_buf[ENSC_PI_APPSZ(mtab_path, mtab_subpath)];
+
+ PathInfo_append(&mtab_path, &mtab_subpath, mtab_buf);
+ char const * mtab = findMtab(mtab_path.d);
+ pid_t pid;
+ int p[2];
+
+ Epipe(p);
+ pid = Efork();
+ if (pid==0) {
+ Undo_detach();
+ Eclose(p[1]);
+
+ Echdir(cfg->vdir);
+ Echroot(".");
+
+ int fd = Eopen("/etc/mtab", O_WRONLY|O_CREAT, 0644);
+ for (;;) {
+ char buf[4096];
+ ssize_t len = TEMP_FAILURE_RETRY(read(p[0], buf, sizeof buf));
+ if (len==0) break;
+ if (len==-1) {
+ perror("vserver-start: initMtab/read():");
+ _exit(1);
+ }
+
+ Ewrite(fd, buf, len);
+ }
+ Eclose(fd);
+ Eclose(p[0]);
+ _exit(0);
+ }
+ else {
+ Eclose(p[0]);
+
+ if (mtab!=0) {
+ int fd = Eopen(mtab, O_RDONLY, 0644);
+
+ for (;;) {
+ char buf[4096];
+ ssize_t len = TEMP_FAILURE_RETRY(read(fd, buf, sizeof buf));
+ if (len==0) break;
+ if (len==-1) {
+ perror("vserver-start: initMtab/read():");
+ _exit(1);
+ }
+
+ Ewrite(p[1], buf, len);
+ }
+
+ Eclose(fd);
+ }
+
+ Eclose(p[1]);
+
+ int status;
+ TEMP_FAILURE_RETRY(wait4(pid, &status, 0,0));
+
+ if (!WIFEXITED(status) || WEXITSTATUS(status)!=0) {
+ exit(1);
+ }
+ }
+}
+
+static void
+mountVserverInternal(struct Configuration const *cfg,
+ PathInfo const *path, bool use_chbind)
+{
+ if (!utilvserver_isFile(path->d,true)) return;
+
+ pid_t pid = Efork();
+ if (pid==0) {
+ Undo_detach();
+
+ Echdir(cfg->vdir);
+
+ if (use_chbind) {
+ // TODO
+ }
+
+ struct Command cmd;
+ char const * argv[] = {
+ PROG_SECURE_MOUNT,
+ "-a",
+ "--chroot", ".",
+ "--fstab", path->d,
+ 0
+ };
+
+ Command_init(&cmd);
+ Command_setParams(&cmd, argv);
+ Command_exec(&cmd, false);
+ }
+ else {
+ int status;
+ TEMP_FAILURE_RETRY(wait4(pid, &status, 0,0));
+
+ if (!WIFEXITED(status) || WEXITSTATUS(status)!=0)
+ exit(1);
+ }
+}
+
+void
+mountVserver(struct Configuration const *cfg)
+{
+ ENSC_PI_DECLARE(fstab_subpath, "fstab");
+ ENSC_PI_DECLARE(fstabl_subpath, "fstab.local");
+
+ PathInfo fstab_path = cfg->cfgdir;
+ char fstab_buf[ENSC_PI_APPSZ(fstab_path, fstab_subpath)];
+
+ PathInfo fstabl_path = cfg->cfgdir;
+ char fstabl_buf[ENSC_PI_APPSZ(fstabl_path, fstabl_subpath)];
+
+
+ PathInfo_append(&fstab_path, &fstab_subpath, fstab_buf);
+ PathInfo_append(&fstabl_path, &fstabl_subpath, fstabl_buf);
+ initMtab(cfg);
+
+ mountVserverInternal(cfg, &fstab_path, true);
+ mountVserverInternal(cfg, &fstabl_path, false);
+}
--- /dev/null
+// $Id$ --*- c -*--
+
+// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifndef H_UTIL_VSERVER_VSERVER_START_MOUNT_H
+#define H_UTIL_VSERVER_VSERVER_START_MOUNT_H
+
+#include <lib_internal/pathinfo.h>
+
+struct Configuration;
+void mountVserver(struct Configuration const *cfg);
+
+#endif // H_UTIL_VSERVER_VSERVER_START_MOUNT_H
--- /dev/null
+// $Id$ --*- c -*--
+
+// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "undo.h"
+
+#include <lib_internal/util.h>
+#include <ensc_vector/vector.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <assert.h>
+
+struct FuncData
+{
+ ExitFunction fn;
+ void const * args;
+};
+
+struct Undo
+{
+ pid_t pid_;
+ struct Vector funcs;
+};
+
+
+static struct Undo undo_data = {
+ .pid_ = -1
+};
+
+static void
+atexitHandler()
+{
+ struct FuncData const * ptr;
+
+ if (undo_data.pid_ != getpid())
+ return; // skip 'exit()' from forked processes
+
+ for (ptr=Vector_end(&undo_data.funcs);
+ ptr!=Vector_begin(&undo_data.funcs);
+ --ptr)
+ (ptr[-1].fn)(ptr[-1].args);
+}
+
+void
+Undo_init()
+{
+ if (undo_data.pid_!=-1) {
+ WRITE_MSG(2, "Undo already initialized; internal error...\n");
+ _exit(1);
+ }
+
+ undo_data.pid_ = getpid();
+ Vector_init(&undo_data.funcs, sizeof(struct FuncData));
+
+ atexit(&atexitHandler);
+}
+
+void
+Undo_addTask(ExitFunction fn, void const *args)
+{
+ struct FuncData *tmp = Vector_pushback(&undo_data.funcs);
+ assert(tmp!=0); // Vector_pushback never returns a null-pointer
+
+ tmp->fn = fn;
+ tmp->args = args;
+}
+
+void
+Undo_detach()
+{
+ Vector_free(&undo_data.funcs);
+ undo_data.pid_ = -1;
+}
--- /dev/null
+// $Id$ --*- c -*--
+
+// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifndef H_UTIL_VSERVER_VSERVER_START_UNDO_H
+#define H_UTIL_VSERVER_VSERVER_START_UNDO_H
+
+typedef void (*ExitFunction)(void const *);
+
+void Undo_init();
+void Undo_addTask(ExitFunction fn, void const *args);
+void Undo_detach();
+
+#endif // H_UTIL_VSERVER_VSERVER_START_UNDO_H