diff options
author | Lennart Poettering <lennart@poettering.net> | 2010-05-16 18:45:24 +0200 |
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committer | Lennart Poettering <lennart@poettering.net> | 2010-05-16 18:45:24 +0200 |
commit | e99e38bbdcca3fe5956823bdb3d38544ccf93221 (patch) | |
tree | 109871cf2bdcad19105d55f4eea62d5495a8f614 /mount-setup.c | |
parent | e9da3678fcfc774b325dc1eaa054d0e00028a1fc (diff) |
build-sys: move source files to subdirectory
Diffstat (limited to 'mount-setup.c')
-rw-r--r-- | mount-setup.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/mount-setup.c b/mount-setup.c deleted file mode 100644 index cb91e181bf..0000000000 --- a/mount-setup.c +++ /dev/null @@ -1,168 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8 -*-*/ - -/*** - This file is part of systemd. - - Copyright 2010 Lennart Poettering - - systemd 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; either version 2 of the License, or - (at your option) any later version. - - systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <sys/mount.h> -#include <errno.h> -#include <sys/stat.h> -#include <stdlib.h> -#include <string.h> -#include <libgen.h> -#include <assert.h> - -#include "mount-setup.h" -#include "log.h" -#include "macro.h" -#include "util.h" - -typedef struct MountPoint { - const char *what; - const char *where; - const char *type; - const char *options; - unsigned long flags; - bool fatal; -} MountPoint; - -static const MountPoint mount_table[] = { - { "proc", "/proc", "proc", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV, true }, - { "sysfs", "/sys", "sysfs", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV, true }, - { "devtmps", "/dev", "devtmpfs", "mode=755", MS_NOSUID, true }, - { "tmpfs", "/dev/shm", "tmpfs", "mode=1777", MS_NOSUID|MS_NOEXEC|MS_NODEV, true }, - { "devpts", "/dev/pts", "devpts", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV, false }, - { "cgroup", "/cgroup/debug", "cgroup", "debug", MS_NOSUID|MS_NOEXEC|MS_NODEV, true }, - { "debugfs", "/sys/kernel/debug", "debugfs", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV, false }, - { "binfmt_misc", "/proc/sys/fs/binfmt_misc", "binfmt_misc", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV, false }, - { "mqueue", "/dev/mqueue", "mqueue", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV, false }, -}; - -bool mount_point_is_api(const char *path) { - unsigned i; - - /* Checks if this mount point is considered "API", and hence - * should be ignored */ - - for (i = 0; i < ELEMENTSOF(mount_table); i ++) - if (path_startswith(path, mount_table[i].where)) - return true; - - return path_startswith(path, "/cgroup/"); -} - -static int mount_one(const MountPoint *p) { - int r; - - assert(p); - - if ((r = path_is_mount_point(p->where)) < 0) - return r; - - if (r > 0) - return 0; - - /* The access mode here doesn't really matter too much, since - * the mounted file system will take precedence anyway. */ - mkdir_p(p->where, 0755); - - log_debug("Mounting %s to %s of type %s with options %s.", - p->what, - p->where, - p->type, - strna(p->options)); - - if (mount(p->what, - p->where, - p->type, - p->flags, - p->options) < 0) { - log_error("Failed to mount %s: %s", p->where, strerror(errno)); - return p->fatal ? -errno : 0; - } - - return 0; -} - -static int mount_cgroup_controllers(void) { - int r; - FILE *f; - char buf [256]; - - /* Mount all available cgroup controllers. */ - - if (!(f = fopen("/proc/cgroups", "re"))) - return -ENOENT; - - /* Ignore the header line */ - (void) fgets(buf, sizeof(buf), f); - - for (;;) { - MountPoint p; - char *controller, *where; - - if (fscanf(f, "%ms %*i %*i %*i", &controller) != 1) { - - if (feof(f)) - break; - - log_error("Failed to parse /proc/cgroups."); - r = -EIO; - goto finish; - } - - if (asprintf(&where, "/cgroup/%s", controller) < 0) { - free(controller); - r = -ENOMEM; - goto finish; - } - - zero(p); - p.what = "cgroup"; - p.where = where; - p.type = "cgroup"; - p.options = controller; - p.flags = MS_NOSUID|MS_NOEXEC|MS_NODEV; - p.fatal = false; - - r = mount_one(&p); - free(controller); - free(where); - - if (r < 0) - goto finish; - } - - r = 0; - -finish: - fclose(f); - - return r; -} - -int mount_setup(void) { - int r; - unsigned i; - - for (i = 0; i < ELEMENTSOF(mount_table); i ++) - if ((r = mount_one(mount_table+i)) < 0) - return r; - - return mount_cgroup_controllers(); -} |