main: we want all setup functions to be in files called xxx-setup.[ch]

1 files changed, 0 insertions, 265 deletions

diff --git a/src/shared/machine-id-util.c b/src/shared/machine-id-util.c
deleted file mode 100644
index d65fd51131..0000000000
--- a/src/shared/machine-id-util.c
+++ /dev/null
@@ -1,265 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  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 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 <unistd.h>
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <sys/mount.h>
-
-#include <systemd/sd-id128.h>
-
-#include "machine-id-util.h"
-#include "macro.h"
-#include "util.h"
-#include "mkdir.h"
-#include "log.h"
-#include "virt.h"
-
-static int shorten_uuid(char destination[36], const char *source) {
-        unsigned i, j;
-
-        for (i = 0, j = 0; i < 36 && j < 32; i++) {
-                int t;
-
-                t = unhexchar(source[i]);
-                if (t < 0)
-                        continue;
-
-                destination[j++] = hexchar(t);
-        }
-
-        if (i == 36 && j == 32) {
-                destination[32] = '\n';
-                destination[33] = 0;
-                return 0;
-        }
-
-        return -EINVAL;
-}
-
-static int generate(char id[34]) {
-        int fd, r;
-        unsigned char *p;
-        sd_id128_t buf;
-        char *q;
-        ssize_t k;
-        const char *vm_id;
-
-        assert(id);
-
-        /* First, try reading the D-Bus machine id, unless it is a symlink */
-        fd = open("/var/lib/dbus/machine-id", O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW);
-        if (fd >= 0) {
-
-                k = loop_read(fd, id, 32, false);
-                close_nointr_nofail(fd);
-
-                if (k >= 32) {
-                        id[32] = '\n';
-                        id[33] = 0;
-
-                        log_info("Initializing machine ID from D-Bus machine ID.");
-                        return 0;
-                }
-        }
-
-        /* If that didn't work, see if we are running in qemu/kvm and a
-         * machine ID was passed in via -uuid on the qemu/kvm command
-         * line */
-
-        r = detect_vm(&vm_id);
-        if (r > 0 && streq(vm_id, "kvm")) {
-                char uuid[37];
-
-                fd = open("/sys/class/dmi/id/product_uuid", O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW);
-                if (fd >= 0) {
-                        k = loop_read(fd, uuid, 36, false);
-                        close_nointr_nofail(fd);
-
-                        if (k >= 36) {
-                                r = shorten_uuid(id, uuid);
-                                if (r >= 0) {
-                                        log_info("Initializing machine ID from KVM UUID");
-                                        return 0;
-                                }
-                        }
-                }
-        }
-
-        /* If that didn't work either, see if we are running in a
-         * container, and a machine ID was passed in via
-         * $container_uuid the way libvirt/LXC does it */
-
-        r = detect_container(NULL);
-        if (r > 0) {
-                FILE *f;
-
-                f = fopen("/proc/1/environ", "re");
-                if (f) {
-                        bool done = false;
-
-                        do {
-                                char line[LINE_MAX];
-                                unsigned i;
-
-                                for (i = 0; i < sizeof(line)-1; i++) {
-                                        int c;
-
-                                        c = getc(f);
-                                        if (_unlikely_(c == EOF)) {
-                                                done = true;
-                                                break;
-                                        } else if (c == 0)
-                                                break;
-
-                                        line[i] = c;
-                                }
-                                line[i] = 0;
-
-                                if (startswith(line, "container_uuid=") &&
-                                    strlen(line + 15) >= 36) {
-                                        r = shorten_uuid(id, line + 15);
-                                        if (r >= 0) {
-                                                log_info("Initializing machine ID from container UUID");
-                                                return 0;
-                                        }
-                                }
-
-                        } while (!done);
-
-                        fclose(f);
-                }
-        }
-
-        /* If that didn't work, generate a random machine id */
-        r = sd_id128_randomize(&buf);
-        if (r < 0) {
-                log_error("Failed to open /dev/urandom: %s", strerror(-r));
-                return r;
-        }
-
-        for (p = buf.bytes, q = id; p < buf.bytes + sizeof(buf); p++, q += 2) {
-                q[0] = hexchar(*p >> 4);
-                q[1] = hexchar(*p & 15);
-        }
-
-        id[32] = '\n';
-        id[33] = 0;
-
-        log_info("Initializing machine ID from random generator.");
-
-        return 0;
-}
-
-int machine_id_setup(void) {
-        int fd, r;
-        bool writable;
-        struct stat st;
-        char id[34]; /* 32 + \n + \0 */
-        mode_t m;
-
-        m = umask(0000);
-
-        /* We create this 0444, to indicate that this isn't really
-         * something you should ever modify. Of course, since the file
-         * will be owned by root it doesn't matter much, but maybe
-         * people look. */
-
-        fd = open("/etc/machine-id", O_RDWR|O_CREAT|O_CLOEXEC|O_NOCTTY, 0444);
-        if (fd >= 0)
-                writable = true;
-        else {
-                fd = open("/etc/machine-id", O_RDONLY|O_CLOEXEC|O_NOCTTY);
-                if (fd < 0) {
-                        umask(m);
-                        log_error("Cannot open /etc/machine-id: %m");
-                        return -errno;
-                }
-
-                writable = false;
-        }
-
-        umask(m);
-
-        if (fstat(fd, &st) < 0) {
-                log_error("fstat() failed: %m");
-                r = -errno;
-                goto finish;
-        }
-
-        if (S_ISREG(st.st_mode)) {
-                if (loop_read(fd, id, 32, false) >= 32) {
-                        r = 0;
-                        goto finish;
-                }
-        }
-
-        /* Hmm, so, the id currently stored is not useful, then let's
-         * generate one */
-
-        r = generate(id);
-        if (r < 0)
-                goto finish;
-
-        if (S_ISREG(st.st_mode) && writable) {
-                lseek(fd, 0, SEEK_SET);
-
-                if (loop_write(fd, id, 33, false) == 33) {
-                        r = 0;
-                        goto finish;
-                }
-        }
-
-        close_nointr_nofail(fd);
-        fd = -1;
-
-        /* Hmm, we couldn't write it? So let's write it to
-         * /run/machine-id as a replacement */
-
-        m = umask(0022);
-        r = write_one_line_file("/run/machine-id", id);
-        umask(m);
-
-        if (r < 0) {
-                log_error("Cannot write /run/machine-id: %s", strerror(-r));
-
-                unlink("/run/machine-id");
-                goto finish;
-        }
-
-        /* And now, let's mount it over */
-        r = mount("/run/machine-id", "/etc/machine-id", "bind", MS_BIND|MS_RDONLY, NULL) < 0 ? -errno : 0;
-        if (r < 0) {
-                unlink("/run/machine-id");
-                log_error("Failed to mount /etc/machine-id: %s", strerror(-r));
-        } else
-                log_info("Installed transient /etc/machine-id file.");
-
-finish:
-
-        if (fd >= 0)
-                close_nointr_nofail(fd);
-
-        return r;
-}