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Diffstat (limited to 'src/fstab-generator/fstab-generator.c')
-rw-r--r--src/fstab-generator/fstab-generator.c560
1 files changed, 0 insertions, 560 deletions
diff --git a/src/fstab-generator/fstab-generator.c b/src/fstab-generator/fstab-generator.c
deleted file mode 100644
index 62053b7f35..0000000000
--- a/src/fstab-generator/fstab-generator.c
+++ /dev/null
@@ -1,560 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2012 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <stdio.h>
-#include <mntent.h>
-#include <errno.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "log.h"
-#include "util.h"
-#include "unit-name.h"
-#include "path-util.h"
-#include "mount-setup.h"
-#include "special.h"
-#include "mkdir.h"
-#include "virt.h"
-
-static const char *arg_dest = "/tmp";
-static bool arg_enabled = true;
-
-static int device_name(const char *path, char **unit) {
- char *p;
-
- assert(path);
-
- if (!is_device_path(path))
- return 0;
-
- p = unit_name_from_path(path, ".device");
- if (!p)
- return log_oom();
-
- *unit = p;
- return 1;
-}
-
-static int mount_find_pri(struct mntent *me, int *ret) {
- char *end, *pri;
- unsigned long r;
-
- assert(me);
- assert(ret);
-
- pri = hasmntopt(me, "pri");
- if (!pri)
- return 0;
-
- pri += 4;
-
- errno = 0;
- r = strtoul(pri, &end, 10);
- if (errno != 0)
- return -errno;
-
- if (end == pri || (*end != ',' && *end != 0))
- return -EINVAL;
-
- *ret = (int) r;
- return 1;
-}
-
-static int add_swap(const char *what, struct mntent *me) {
- char *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL;
- FILE *f = NULL;
- bool noauto, nofail;
- int r, pri = -1;
-
- assert(what);
- assert(me);
-
- r = mount_find_pri(me, &pri);
- if (r < 0) {
- log_error("Failed to parse priority");
- return pri;
- }
-
- noauto = !!hasmntopt(me, "noauto");
- nofail = !!hasmntopt(me, "nofail");
-
- name = unit_name_from_path(what, ".swap");
- if (!name) {
- r = log_oom();
- goto finish;
- }
-
- unit = strjoin(arg_dest, "/", name, NULL);
- if (!unit) {
- r = log_oom();
- goto finish;
- }
-
- f = fopen(unit, "wxe");
- if (!f) {
- r = -errno;
- log_error("Failed to create unit file %s: %m", unit);
- goto finish;
- }
-
- fputs("# Automatically generated by systemd-fstab-generator\n\n"
- "[Unit]\n"
- "SourcePath=/etc/fstab\n"
- "DefaultDependencies=no\n"
- "Conflicts=" SPECIAL_UMOUNT_TARGET "\n"
- "Before=" SPECIAL_UMOUNT_TARGET "\n", f);
-
- if (!noauto && !nofail)
- fputs("Before=" SPECIAL_SWAP_TARGET "\n", f);
-
- fprintf(f,
- "\n"
- "[Swap]\n"
- "What=%s\n",
- what);
-
- if (pri >= 0)
- fprintf(f,
- "Priority=%i\n",
- pri);
-
- fflush(f);
- if (ferror(f)) {
- log_error("Failed to write unit file %s: %m", unit);
- r = -errno;
- goto finish;
- }
-
- if (!noauto) {
- lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", name, NULL);
- if (!lnk) {
- r = log_oom();
- goto finish;
- }
-
- mkdir_parents_label(lnk, 0755);
- if (symlink(unit, lnk) < 0) {
- log_error("Failed to create symlink %s: %m", lnk);
- r = -errno;
- goto finish;
- }
-
- r = device_name(what, &device);
- if (r < 0)
- goto finish;
-
- if (r > 0) {
- free(lnk);
- lnk = strjoin(arg_dest, "/", device, ".wants/", name, NULL);
- if (!lnk) {
- r = log_oom();
- goto finish;
- }
-
- mkdir_parents_label(lnk, 0755);
- if (symlink(unit, lnk) < 0) {
- log_error("Failed to create symlink %s: %m", lnk);
- r = -errno;
- goto finish;
- }
- }
- }
-
- r = 0;
-finish:
- if (f)
- fclose(f);
-
- free(unit);
- free(lnk);
- free(name);
- free(device);
-
- return r;
-}
-
-static bool mount_is_bind(struct mntent *me) {
- assert(me);
-
- return
- hasmntopt(me, "bind") ||
- streq(me->mnt_opts, "bind");
-}
-
-static bool mount_is_network(struct mntent *me) {
- assert(me);
-
- return
- hasmntopt(me, "_netdev") ||
- fstype_is_network(me->mnt_type);
-}
-
-static int add_mount(const char *what, const char *where, struct mntent *me) {
- char *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL, *automount_name = NULL, *automount_unit = NULL;
- FILE *f = NULL;
- bool noauto, nofail, automount, isbind, isnetwork;
- int r;
- const char *post, *pre;
-
- assert(what);
- assert(where);
- assert(me);
-
- if (streq(me->mnt_type, "autofs"))
- return 0;
-
- if (!is_path(where)) {
- log_warning("Mount point %s is not a valid path, ignoring.", where);
- return 0;
- }
-
- if (mount_point_is_api(where) ||
- mount_point_ignore(where))
- return 0;
-
- isnetwork = mount_is_network(me);
- isbind = mount_is_bind(me);
-
- noauto = !!hasmntopt(me, "noauto");
- nofail = !!hasmntopt(me, "nofail");
- automount =
- hasmntopt(me, "comment=systemd.automount") ||
- hasmntopt(me, "x-systemd.automount");
-
- if (isnetwork) {
- post = SPECIAL_REMOTE_FS_TARGET;
- pre = SPECIAL_REMOTE_FS_PRE_TARGET;
- } else {
- post = SPECIAL_LOCAL_FS_TARGET;
- pre = SPECIAL_LOCAL_FS_PRE_TARGET;
- }
-
- name = unit_name_from_path(where, ".mount");
- if (!name) {
- r = log_oom();
- goto finish;
- }
-
- unit = strjoin(arg_dest, "/", name, NULL);
- if (!unit) {
- r = log_oom();
- goto finish;
- }
-
- f = fopen(unit, "wxe");
- if (!f) {
- r = -errno;
- log_error("Failed to create unit file %s: %m", unit);
- goto finish;
- }
-
- fputs("# Automatically generated by systemd-fstab-generator\n\n"
- "[Unit]\n"
- "SourcePath=/etc/fstab\n"
- "DefaultDependencies=no\n", f);
-
- if (!path_equal(where, "/"))
- fprintf(f,
- "After=%s\n"
- "Wants=%s\n"
- "Conflicts=" SPECIAL_UMOUNT_TARGET "\n"
- "Before=" SPECIAL_UMOUNT_TARGET "\n",
- pre,
- pre);
-
-
- if (!noauto && !nofail && !automount)
- fprintf(f,
- "Before=%s\n",
- post);
-
- fprintf(f,
- "\n"
- "[Mount]\n"
- "What=%s\n"
- "Where=%s\n"
- "Type=%s\n"
- "FsckPassNo=%i\n",
- what,
- where,
- me->mnt_type,
- me->mnt_passno);
-
- if (!isempty(me->mnt_opts) &&
- !streq(me->mnt_opts, "defaults"))
- fprintf(f,
- "Options=%s\n",
- me->mnt_opts);
-
- fflush(f);
- if (ferror(f)) {
- log_error("Failed to write unit file %s: %m", unit);
- r = -errno;
- goto finish;
- }
-
- if (!noauto) {
- lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL);
- if (!lnk) {
- r = log_oom();
- goto finish;
- }
-
- mkdir_parents_label(lnk, 0755);
- if (symlink(unit, lnk) < 0) {
- log_error("Failed to create symlink %s: %m", lnk);
- r = -errno;
- goto finish;
- }
-
- if (!isbind &&
- !path_equal(where, "/")) {
-
- r = device_name(what, &device);
- if (r < 0)
- goto finish;
-
- if (r > 0) {
- free(lnk);
- lnk = strjoin(arg_dest, "/", device, ".wants/", name, NULL);
- if (!lnk) {
- r = log_oom();
- goto finish;
- }
-
- mkdir_parents_label(lnk, 0755);
- if (symlink(unit, lnk) < 0) {
- log_error("Failed to create symlink %s: %m", lnk);
- r = -errno;
- goto finish;
- }
- }
- }
- }
-
- if (automount && !path_equal(where, "/")) {
- automount_name = unit_name_from_path(where, ".automount");
- if (!name) {
- r = log_oom();
- goto finish;
- }
-
- automount_unit = strjoin(arg_dest, "/", automount_name, NULL);
- if (!automount_unit) {
- r = log_oom();
- goto finish;
- }
-
- fclose(f);
- f = fopen(automount_unit, "wxe");
- if (!f) {
- r = -errno;
- log_error("Failed to create unit file %s: %m", automount_unit);
- goto finish;
- }
-
- fprintf(f,
- "# Automatically generated by systemd-fstab-generator\n\n"
- "[Unit]\n"
- "SourcePath=/etc/fstab\n"
- "DefaultDependencies=no\n"
- "Conflicts=" SPECIAL_UMOUNT_TARGET "\n"
- "Before=" SPECIAL_UMOUNT_TARGET " %s\n"
- "\n"
- "[Automount]\n"
- "Where=%s\n",
- post,
- where);
-
- fflush(f);
- if (ferror(f)) {
- log_error("Failed to write unit file %s: %m", automount_unit);
- r = -errno;
- goto finish;
- }
-
- free(lnk);
- lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL);
- if (!lnk) {
- r = log_oom();
- goto finish;
- }
-
- mkdir_parents_label(lnk, 0755);
- if (symlink(automount_unit, lnk) < 0) {
- log_error("Failed to create symlink %s: %m", lnk);
- r = -errno;
- goto finish;
- }
- }
-
- r = 0;
-finish:
- if (f)
- fclose(f);
-
- free(unit);
- free(lnk);
- free(name);
- free(device);
- free(automount_name);
- free(automount_unit);
-
- return r;
-}
-
-static int parse_fstab(void) {
- FILE *f;
- int r = 0;
- struct mntent *me;
-
- errno = 0;
- f = setmntent("/etc/fstab", "r");
- if (!f) {
- if (errno == ENOENT)
- return 0;
-
- log_error("Failed to open /etc/fstab: %m");
- return -errno;
- }
-
- while ((me = getmntent(f))) {
- char *where, *what;
- int k;
-
- what = fstab_node_to_udev_node(me->mnt_fsname);
- if (!what) {
- r = log_oom();
- goto finish;
- }
-
- where = strdup(me->mnt_dir);
- if (!where) {
- r = log_oom();
- free(what);
- goto finish;
- }
-
- if (is_path(where))
- path_kill_slashes(where);
-
- log_debug("Found entry what=%s where=%s type=%s", what, where, me->mnt_type);
-
- if (streq(me->mnt_type, "swap"))
- k = add_swap(what, me);
- else
- k = add_mount(what, where, me);
-
- free(what);
- free(where);
-
- if (k < 0)
- r = k;
- }
-
-finish:
- endmntent(f);
- return r;
-}
-
-static int parse_proc_cmdline(void) {
- char *line, *w, *state;
- int r;
- size_t l;
-
- if (detect_container(NULL) > 0)
- return 0;
-
- r = read_one_line_file("/proc/cmdline", &line);
- if (r < 0) {
- log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
- return 0;
- }
-
- FOREACH_WORD_QUOTED(w, l, line, state) {
- char *word;
-
- word = strndup(w, l);
- if (!word) {
- r = log_oom();
- goto finish;
- }
-
- if (startswith(word, "fstab=")) {
- r = parse_boolean(word + 6);
- if (r < 0)
- log_warning("Failed to parse fstab switch %s. Ignoring.", word + 6);
- else
- arg_enabled = r;
-
- } else if (startswith(word, "rd.fstab=")) {
-
- if (in_initrd()) {
- r = parse_boolean(word + 6);
- if (r < 0)
- log_warning("Failed to parse fstab switch %s. Ignoring.", word + 6);
- else
- arg_enabled = r;
- }
-
- } else if (startswith(word, "fstab.") ||
- (in_initrd() && startswith(word, "rd.fstab."))) {
-
- log_warning("Unknown kernel switch %s. Ignoring.", word);
- }
-
- free(word);
- }
-
- r = 0;
-
-finish:
- free(line);
- return r;
-}
-
-int main(int argc, char *argv[]) {
- int r;
-
- if (argc > 1 && argc != 4) {
- log_error("This program takes three or no arguments.");
- return EXIT_FAILURE;
- }
-
- if (argc > 1)
- arg_dest = argv[1];
-
- log_set_target(LOG_TARGET_SAFE);
- log_parse_environment();
- log_open();
-
- umask(0022);
-
- if (parse_proc_cmdline() < 0)
- return EXIT_FAILURE;
-
- if (!arg_enabled)
- return EXIT_SUCCESS;
-
- r = parse_fstab();
-
- return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
-}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-23 07:43:46 +0000