Isolation of udev code from remaining systemd

This commit is a first attempt to isolate the udev code from the
remaining code base.  It intentionally does not modify any files
but purely delete files which, on a first examination, appear to
not be needed.  This is a sweeping commit which may easily have
missed needed code.  Files can be retrieved by doing a checkout
from the previous commit:

 git checkout 2944f347d0 -- <filename>

1 files changed, 0 insertions, 468 deletions

diff --git a/src/login/logind-inhibit.c b/src/login/logind-inhibit.c
deleted file mode 100644
index f1b9cca834..0000000000
--- a/src/login/logind-inhibit.c
+++ /dev/null
@@ -1,468 +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 <errno.h>
-#include <fcntl.h>
-#include <sys/epoll.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-
-#include "util.h"
-#include "mkdir.h"
-#include "path-util.h"
-#include "logind-inhibit.h"
-
-Inhibitor* inhibitor_new(Manager *m, const char* id) {
-        Inhibitor *i;
-
-        assert(m);
-
-        i = new0(Inhibitor, 1);
-        if (!i)
-                return NULL;
-
-        i->state_file = strappend("/run/systemd/inhibit/", id);
-        if (!i->state_file) {
-                free(i);
-                return NULL;
-        }
-
-        i->id = path_get_file_name(i->state_file);
-
-        if (hashmap_put(m->inhibitors, i->id, i) < 0) {
-                free(i->state_file);
-                free(i);
-                return NULL;
-        }
-
-        i->manager = m;
-        i->fifo_fd = -1;
-
-        return i;
-}
-
-void inhibitor_free(Inhibitor *i) {
-        assert(i);
-
-        free(i->who);
-        free(i->why);
-
-        hashmap_remove(i->manager->inhibitors, i->id);
-        inhibitor_remove_fifo(i);
-
-        if (i->state_file) {
-                unlink(i->state_file);
-                free(i->state_file);
-        }
-
-        free(i);
-}
-
-int inhibitor_save(Inhibitor *i) {
-        char *temp_path, *cc;
-        int r;
-        FILE *f;
-
-        assert(i);
-
-        r = mkdir_safe_label("/run/systemd/inhibit", 0755, 0, 0);
-        if (r < 0)
-                goto finish;
-
-        r = fopen_temporary(i->state_file, &f, &temp_path);
-        if (r < 0)
-                goto finish;
-
-        fchmod(fileno(f), 0644);
-
-        fprintf(f,
-                "# This is private data. Do not parse.\n"
-                "WHAT=%s\n"
-                "MODE=%s\n"
-                "UID=%lu\n"
-                "PID=%lu\n",
-                inhibit_what_to_string(i->what),
-                inhibit_mode_to_string(i->mode),
-                (unsigned long) i->uid,
-                (unsigned long) i->pid);
-
-        if (i->who) {
-                cc = cescape(i->who);
-                if (!cc)
-                        r = -ENOMEM;
-                else {
-                        fprintf(f, "WHO=%s\n", cc);
-                        free(cc);
-                }
-        }
-
-        if (i->why) {
-                cc = cescape(i->why);
-                if (!cc)
-                        r = -ENOMEM;
-                else {
-                        fprintf(f, "WHY=%s\n", cc);
-                        free(cc);
-                }
-        }
-
-        if (i->fifo_path)
-                fprintf(f, "FIFO=%s\n", i->fifo_path);
-
-        fflush(f);
-
-        if (ferror(f) || rename(temp_path, i->state_file) < 0) {
-                r = -errno;
-                unlink(i->state_file);
-                unlink(temp_path);
-        }
-
-        fclose(f);
-        free(temp_path);
-
-finish:
-        if (r < 0)
-                log_error("Failed to save inhibit data for %s: %s", i->id, strerror(-r));
-
-        return r;
-}
-
-int inhibitor_start(Inhibitor *i) {
-        assert(i);
-
-        if (i->started)
-                return 0;
-
-        dual_timestamp_get(&i->since);
-
-        log_debug("Inhibitor %s (%s) pid=%lu uid=%lu mode=%s started.",
-                  strna(i->who), strna(i->why),
-                  (unsigned long) i->pid, (unsigned long) i->uid,
-                  inhibit_mode_to_string(i->mode));
-
-        inhibitor_save(i);
-
-        i->started = true;
-
-        manager_send_changed(i->manager, i->mode == INHIBIT_BLOCK ? "BlockInhibited\0" : "DelayInhibited\0");
-
-        return 0;
-}
-
-int inhibitor_stop(Inhibitor *i) {
-        assert(i);
-
-        if (i->started)
-                log_debug("Inhibitor %s (%s) pid=%lu uid=%lu mode=%s stopped.",
-                          strna(i->who), strna(i->why),
-                          (unsigned long) i->pid, (unsigned long) i->uid,
-                          inhibit_mode_to_string(i->mode));
-
-        if (i->state_file)
-                unlink(i->state_file);
-
-        i->started = false;
-
-        manager_send_changed(i->manager, i->mode == INHIBIT_BLOCK ? "BlockInhibited\0" : "DelayInhibited\0");
-
-        return 0;
-}
-
-int inhibitor_load(Inhibitor *i) {
-        InhibitWhat w;
-        InhibitMode mm;
-        int r;
-        char *cc,
-                *what = NULL,
-                *uid = NULL,
-                *pid = NULL,
-                *who = NULL,
-                *why = NULL,
-                *mode = NULL;
-
-        r = parse_env_file(i->state_file, NEWLINE,
-                           "WHAT", &what,
-                           "UID", &uid,
-                           "PID", &pid,
-                           "WHO", &who,
-                           "WHY", &why,
-                           "MODE", &mode,
-                           "FIFO", &i->fifo_path,
-                           NULL);
-        if (r < 0)
-                goto finish;
-
-        w = what ? inhibit_what_from_string(what) : 0;
-        if (w >= 0)
-                i->what = w;
-
-        mm = mode ? inhibit_mode_from_string(mode) : INHIBIT_BLOCK;
-        if  (mm >= 0)
-                i->mode = mm;
-
-        if (uid) {
-                r = parse_uid(uid, &i->uid);
-                if (r < 0)
-                        goto finish;
-        }
-
-        if (pid) {
-                r = parse_pid(pid, &i->pid);
-                if (r < 0)
-                        goto finish;
-        }
-
-        if (who) {
-                cc = cunescape(who);
-                if (!cc) {
-                        r = -ENOMEM;
-                        goto finish;
-                }
-
-                free(i->who);
-                i->who = cc;
-        }
-
-        if (why) {
-                cc = cunescape(why);
-                if (!cc) {
-                        r = -ENOMEM;
-                        goto finish;
-                }
-
-                free(i->why);
-                i->why = cc;
-        }
-
-        if (i->fifo_path) {
-                int fd;
-
-                fd = inhibitor_create_fifo(i);
-                if (fd >= 0)
-                        close_nointr_nofail(fd);
-        }
-
-finish:
-        free(what);
-        free(uid);
-        free(pid);
-        free(who);
-        free(why);
-
-        return r;
-}
-
-int inhibitor_create_fifo(Inhibitor *i) {
-        int r;
-
-        assert(i);
-
-        /* Create FIFO */
-        if (!i->fifo_path) {
-                r = mkdir_safe_label("/run/systemd/inhibit", 0755, 0, 0);
-                if (r < 0)
-                        return r;
-
-                if (asprintf(&i->fifo_path, "/run/systemd/inhibit/%s.ref", i->id) < 0)
-                        return -ENOMEM;
-
-                if (mkfifo(i->fifo_path, 0600) < 0 && errno != EEXIST)
-                        return -errno;
-        }
-
-        /* Open reading side */
-        if (i->fifo_fd < 0) {
-                struct epoll_event ev;
-
-                i->fifo_fd = open(i->fifo_path, O_RDONLY|O_CLOEXEC|O_NDELAY);
-                if (i->fifo_fd < 0)
-                        return -errno;
-
-                r = hashmap_put(i->manager->inhibitor_fds, INT_TO_PTR(i->fifo_fd + 1), i);
-                if (r < 0)
-                        return r;
-
-                zero(ev);
-                ev.events = 0;
-                ev.data.u32 = FD_OTHER_BASE + i->fifo_fd;
-
-                if (epoll_ctl(i->manager->epoll_fd, EPOLL_CTL_ADD, i->fifo_fd, &ev) < 0)
-                        return -errno;
-        }
-
-        /* Open writing side */
-        r = open(i->fifo_path, O_WRONLY|O_CLOEXEC|O_NDELAY);
-        if (r < 0)
-                return -errno;
-
-        return r;
-}
-
-void inhibitor_remove_fifo(Inhibitor *i) {
-        assert(i);
-
-        if (i->fifo_fd >= 0) {
-                assert_se(hashmap_remove(i->manager->inhibitor_fds, INT_TO_PTR(i->fifo_fd + 1)) == i);
-                assert_se(epoll_ctl(i->manager->epoll_fd, EPOLL_CTL_DEL, i->fifo_fd, NULL) == 0);
-                close_nointr_nofail(i->fifo_fd);
-                i->fifo_fd = -1;
-        }
-
-        if (i->fifo_path) {
-                unlink(i->fifo_path);
-                free(i->fifo_path);
-                i->fifo_path = NULL;
-        }
-}
-
-InhibitWhat manager_inhibit_what(Manager *m, InhibitMode mm) {
-        Inhibitor *i;
-        Iterator j;
-        InhibitWhat what = 0;
-
-        assert(m);
-
-        HASHMAP_FOREACH(i, m->inhibitor_fds, j)
-                if (i->mode == mm)
-                        what |= i->what;
-
-        return what;
-}
-
-static int pid_is_active(Manager *m, pid_t pid) {
-        Session *s;
-        int r;
-
-        r = manager_get_session_by_pid(m, pid, &s);
-        if (r <= 0)
-                return r;
-
-        return session_is_active(s);
-}
-
-bool manager_is_inhibited(
-                Manager *m,
-                InhibitWhat w,
-                InhibitMode mm,
-                dual_timestamp *since,
-                bool ignore_inactive,
-                bool ignore_uid,
-                uid_t uid) {
-
-        Inhibitor *i;
-        Iterator j;
-        struct dual_timestamp ts = { 0, 0 };
-        bool inhibited = false;
-
-        assert(m);
-        assert(w > 0 && w < _INHIBIT_WHAT_MAX);
-
-        HASHMAP_FOREACH(i, m->inhibitor_fds, j) {
-                if (!(i->what & w))
-                        continue;
-
-                if (i->mode != mm)
-                        continue;
-
-                if (ignore_inactive && pid_is_active(m, i->pid) <= 0)
-                        continue;
-
-                if (ignore_uid && i->uid == uid)
-                        continue;
-
-                if (!inhibited ||
-                    i->since.monotonic < ts.monotonic)
-                        ts = i->since;
-
-                inhibited = true;
-        }
-
-        if (since)
-                *since = ts;
-
-        return inhibited;
-}
-
-const char *inhibit_what_to_string(InhibitWhat w) {
-        static __thread char buffer[97];
-        char *p;
-
-        if (w < 0 || w >= _INHIBIT_WHAT_MAX)
-                return NULL;
-
-        p = buffer;
-        if (w & INHIBIT_SHUTDOWN)
-                p = stpcpy(p, "shutdown:");
-        if (w & INHIBIT_SLEEP)
-                p = stpcpy(p, "sleep:");
-        if (w & INHIBIT_IDLE)
-                p = stpcpy(p, "idle:");
-        if (w & INHIBIT_HANDLE_POWER_KEY)
-                p = stpcpy(p, "handle-power-key:");
-        if (w & INHIBIT_HANDLE_SUSPEND_KEY)
-                p = stpcpy(p, "handle-suspend-key:");
-        if (w & INHIBIT_HANDLE_HIBERNATE_KEY)
-                p = stpcpy(p, "handle-hibernate-key:");
-        if (w & INHIBIT_HANDLE_LID_SWITCH)
-                p = stpcpy(p, "handle-lid-switch:");
-
-        if (p > buffer)
-                *(p-1) = 0;
-        else
-                *p = 0;
-
-        return buffer;
-}
-
-InhibitWhat inhibit_what_from_string(const char *s) {
-        InhibitWhat what = 0;
-        char *w, *state;
-        size_t l;
-
-        FOREACH_WORD_SEPARATOR(w, l, s, ":", state) {
-                if (l == 8 && strncmp(w, "shutdown", l) == 0)
-                        what |= INHIBIT_SHUTDOWN;
-                else if (l == 5 && strncmp(w, "sleep", l) == 0)
-                        what |= INHIBIT_SLEEP;
-                else if (l == 4 && strncmp(w, "idle", l) == 0)
-                        what |= INHIBIT_IDLE;
-                else if (l == 16 && strncmp(w, "handle-power-key", l) == 0)
-                        what |= INHIBIT_HANDLE_POWER_KEY;
-                else if (l == 18 && strncmp(w, "handle-suspend-key", l) == 0)
-                        what |= INHIBIT_HANDLE_SUSPEND_KEY;
-                else if (l == 20 && strncmp(w, "handle-hibernate-key", l) == 0)
-                        what |= INHIBIT_HANDLE_HIBERNATE_KEY;
-                else if (l == 17 && strncmp(w, "handle-lid-switch", l) == 0)
-                        what |= INHIBIT_HANDLE_LID_SWITCH;
-                else
-                        return _INHIBIT_WHAT_INVALID;
-        }
-
-        return what;
-}
-
-static const char* const inhibit_mode_table[_INHIBIT_MODE_MAX] = {
-        [INHIBIT_BLOCK] = "block",
-        [INHIBIT_DELAY] = "delay"
-};
-
-DEFINE_STRING_TABLE_LOOKUP(inhibit_mode, InhibitMode);