Remove src/fsckd

1 files changed, 0 insertions, 642 deletions

diff --git a/src/fsckd/fsckd.c b/src/fsckd/fsckd.c
deleted file mode 100644
index 6b35fc26a2..0000000000
--- a/src/fsckd/fsckd.c
+++ /dev/null
@@ -1,642 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2015 Canonical
-
-  Author:
-    Didier Roche <didrocks@ubuntu.com>
-
-  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 <getopt.h>
-#include <errno.h>
-#include <libintl.h>
-#include <math.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <sys/un.h>
-#include <unistd.h>
-
-#include "sd-daemon.h"
-#include "build.h"
-#include "def.h"
-#include "event-util.h"
-#include "log.h"
-#include "list.h"
-#include "macro.h"
-#include "socket-util.h"
-#include "util.h"
-#include "fsckd.h"
-
-#define IDLE_TIME_SECONDS 30
-#define PLYMOUTH_REQUEST_KEY "K\2\2\3"
-#define CLIENTS_MAX 128
-
-struct Manager;
-
-typedef struct Client {
-        struct Manager *manager;
-        int fd;
-        dev_t devnum;
-
-        size_t cur;
-        size_t max;
-        int pass;
-
-        double percent;
-
-        size_t buflen;
-        bool cancelled;
-
-        sd_event_source *event_source;
-
-        LIST_FIELDS(struct Client, clients);
-} Client;
-
-typedef struct Manager {
-        sd_event *event;
-
-        LIST_HEAD(Client, clients);
-        unsigned n_clients;
-
-        size_t clear;
-
-        int connection_fd;
-        sd_event_source *connection_event_source;
-
-        bool show_status_console;
-
-        double percent;
-        int numdevices;
-
-        int plymouth_fd;
-        sd_event_source *plymouth_event_source;
-        bool plymouth_cancel_sent;
-
-        bool cancel_requested;
-} Manager;
-
-static void client_free(Client *c);
-static void manager_free(Manager *m);
-
-DEFINE_TRIVIAL_CLEANUP_FUNC(Client*, client_free);
-DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
-
-static int manager_write_console(Manager *m, const char *message) {
-        _cleanup_fclose_ FILE *console = NULL;
-        int l;
-        size_t j;
-
-        assert(m);
-
-        if (!m->show_status_console)
-                return 0;
-
-        /* Reduce the SAK window by opening and closing console on every request */
-        console = fopen("/dev/console", "we");
-        if (!console)
-                return -errno;
-
-        if (message) {
-                fprintf(console, "\r%s\r%n", message, &l);
-                if (m->clear  < (size_t)l)
-                        m->clear = (size_t)l;
-        } else {
-                fputc('\r', console);
-                for (j = 0; j < m->clear; j++)
-                        fputc(' ', console);
-                fputc('\r', console);
-        }
-        fflush(console);
-
-        return 0;
-}
-
-static double compute_percent(int pass, size_t cur, size_t max) {
-        /* Values stolen from e2fsck */
-
-        static const double pass_table[] = {
-                0, 70, 90, 92, 95, 100
-        };
-
-        if (pass <= 0)
-                return 0.0;
-
-        if ((unsigned) pass >= ELEMENTSOF(pass_table) || max == 0)
-                return 100.0;
-
-        return pass_table[pass-1] +
-                (pass_table[pass] - pass_table[pass-1]) *
-                (double) cur / max;
-}
-
-static int client_request_cancel(Client *c) {
-        FsckdMessage cancel_msg = {
-                .cancel = 1,
-        };
-
-        ssize_t n;
-
-        assert(c);
-
-        if (c->cancelled)
-                return 0;
-
-        n = send(c->fd, &cancel_msg, sizeof(FsckdMessage), 0);
-        if (n < 0)
-                return log_warning_errno(errno, "Cannot send cancel to fsck on (%u:%u): %m", major(c->devnum), minor(c->devnum));
-        if ((size_t) n < sizeof(FsckdMessage)) {
-                log_warning("Short send when sending cancel to fsck on (%u:%u).", major(c->devnum), minor(c->devnum));
-                return -EIO;
-        }
-
-        c->cancelled = true;
-        return 1;
-}
-
-static void client_free(Client *c) {
-        assert(c);
-
-        if (c->manager) {
-                LIST_REMOVE(clients, c->manager->clients, c);
-                c->manager->n_clients--;
-        }
-
-        sd_event_source_unref(c->event_source);
-
-        safe_close(c->fd);
-        free(c);
-}
-
-static void manager_disconnect_plymouth(Manager *m) {
-        assert(m);
-
-        m->plymouth_event_source = sd_event_source_unref(m->plymouth_event_source);
-        m->plymouth_fd = safe_close(m->plymouth_fd);
-        m->plymouth_cancel_sent = false;
-}
-
-static int manager_plymouth_feedback_handler(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
-        Manager *m = userdata;
-        Client *current;
-        char buffer[6];
-        ssize_t l;
-
-        assert(m);
-
-        l = read(m->plymouth_fd, buffer, sizeof(buffer));
-        if (l < 0) {
-                log_warning_errno(errno, "Got error while reading from plymouth: %m");
-                manager_disconnect_plymouth(m);
-                return -errno;
-        }
-        if (l == 0) {
-                manager_disconnect_plymouth(m);
-                return 0;
-        }
-
-        if (l > 1 && buffer[0] == '\15')
-                log_error("Message update to plymouth wasn't delivered successfully");
-
-        /* the only answer support type we requested is a key interruption */
-        if (l > 2 && buffer[0] == '\2' && buffer[5] == '\3') {
-                m->cancel_requested = true;
-
-                /* cancel all connected clients */
-                LIST_FOREACH(clients, current, m->clients)
-                        client_request_cancel(current);
-        }
-
-        return 0;
-}
-
-static int manager_connect_plymouth(Manager *m) {
-        union sockaddr_union sa = PLYMOUTH_SOCKET;
-        int r;
-
-        if (!plymouth_running())
-                return 0;
-
-        /* try to connect or reconnect if sending a message */
-        if (m->plymouth_fd >= 0)
-                return 1;
-
-        m->plymouth_fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0);
-        if (m->plymouth_fd < 0)
-                return log_warning_errno(errno, "Connection to plymouth socket failed: %m");
-
-        if (connect(m->plymouth_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {
-                r = log_warning_errno(errno, "Couldn't connect to plymouth: %m");
-                goto fail;
-        }
-
-        r = sd_event_add_io(m->event, &m->plymouth_event_source, m->plymouth_fd, EPOLLIN, manager_plymouth_feedback_handler, m);
-        if (r < 0) {
-                log_warning_errno(r, "Can't listen to plymouth socket: %m");
-                goto fail;
-        }
-
-        return 1;
-
-fail:
-        manager_disconnect_plymouth(m);
-        return r;
-}
-
-static int plymouth_send_message(int plymouth_fd, const char *message, bool update) {
-        _cleanup_free_ char *packet = NULL;
-        int n;
-        char mode = 'M';
-
-        if (update)
-                mode = 'U';
-
-        if (asprintf(&packet, "%c\002%c%s%n", mode, (int) (strlen(message) + 1), message, &n) < 0)
-                return log_oom();
-
-        return loop_write(plymouth_fd, packet, n + 1, true);
-}
-
-static int manager_send_plymouth_message(Manager *m, const char *message) {
-        const char *plymouth_cancel_message = NULL, *l10n_cancel_message = NULL;
-        int r;
-
-        r = manager_connect_plymouth(m);
-        if (r < 0)
-                return r;
-        /* 0 means that plymouth isn't running, do not send any message yet */
-        else if (r == 0)
-                return 0;
-
-        if (!m->plymouth_cancel_sent) {
-
-                /* Indicate to plymouth that we listen to Ctrl+C */
-                r = loop_write(m->plymouth_fd, PLYMOUTH_REQUEST_KEY, sizeof(PLYMOUTH_REQUEST_KEY), true);
-                if (r < 0)
-                        return log_warning_errno(r, "Can't send to plymouth cancel key: %m");
-
-                m->plymouth_cancel_sent = true;
-
-                l10n_cancel_message = _("Press Ctrl+C to cancel all filesystem checks in progress");
-                plymouth_cancel_message = strjoina("fsckd-cancel-msg:", l10n_cancel_message);
-
-                r = plymouth_send_message(m->plymouth_fd, plymouth_cancel_message, false);
-                if (r < 0)
-                        log_warning_errno(r, "Can't send filesystem cancel message to plymouth: %m");
-
-        } else if (m->numdevices == 0) {
-
-                m->plymouth_cancel_sent = false;
-
-                r = plymouth_send_message(m->plymouth_fd, "", false);
-                if (r < 0)
-                        log_warning_errno(r, "Can't clear plymouth filesystem cancel message: %m");
-        }
-
-        r = plymouth_send_message(m->plymouth_fd,  message, true);
-        if (r < 0)
-                return log_warning_errno(r, "Couldn't send \"%s\" to plymouth: %m", message);
-
-        return 0;
-}
-
-static int manager_update_global_progress(Manager *m) {
-        Client *current = NULL;
-        _cleanup_free_ char *console_message = NULL;
-        _cleanup_free_ char *fsck_message = NULL;
-        int current_numdevices = 0, r;
-        double current_percent = 100;
-
-        /* get the overall percentage */
-        LIST_FOREACH(clients, current, m->clients) {
-                current_numdevices++;
-
-                /* right now, we only keep the minimum % of all fsckd processes. We could in the future trying to be
-                   linear, but max changes and corresponds to the pass. We have all the informations into fsckd
-                   already if we can treat that in a smarter way. */
-                current_percent = MIN(current_percent, current->percent);
-        }
-
-        /* update if there is anything user-visible to update */
-        if (fabs(current_percent - m->percent) > 0.001 || current_numdevices != m->numdevices) {
-                m->numdevices = current_numdevices;
-                m->percent = current_percent;
-
-                if (asprintf(&console_message,
-                             ngettext("Checking in progress on %d disk (%3.1f%% complete)",
-                                      "Checking in progress on %d disks (%3.1f%% complete)", m->numdevices),
-                                      m->numdevices, m->percent) < 0)
-                        return -ENOMEM;
-
-                if (asprintf(&fsck_message, "fsckd:%d:%3.1f:%s", m->numdevices, m->percent, console_message) < 0)
-                        return -ENOMEM;
-
-                r = manager_write_console(m, console_message);
-                if (r < 0)
-                        return r;
-
-                /* try to connect to plymouth and send message */
-                r = manager_send_plymouth_message(m, fsck_message);
-                if (r < 0)
-                        return r;
-        }
-        return 0;
-}
-
-static int client_progress_handler(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
-        Client *client = userdata;
-        FsckProgress fsck_data;
-        size_t buflen;
-        Manager *m;
-        int r;
-
-        assert(client);
-
-        m = client->manager;
-
-        /* check first if we need to cancel this client */
-        if (m->cancel_requested)
-                client_request_cancel(client);
-
-        /* ensure we have enough data to read */
-        r = ioctl(fd, FIONREAD, &buflen);
-        if (r == 0 && buflen != 0 && (size_t) buflen < sizeof(FsckProgress)) {
-                if (client->buflen != buflen)
-                        client->buflen = buflen;
-                /* we got twice the same size from a bad behaving client, kick it off the list */
-                else {
-                        log_warning("Closing bad behaving fsck client connection at fd %d", client->fd);
-                        client_free(client);
-                        manager_update_global_progress(m);
-                }
-                return 0;
-        }
-
-        /* read actual data */
-        r = recv(fd, &fsck_data, sizeof(FsckProgress), 0);
-        if (r == 0) {
-                log_debug("Fsck client connected to fd %d disconnected", client->fd);
-                client_free(client);
-        } else if (r > 0 && r != sizeof(FsckProgress))
-                log_warning("Unexpected data structure sent to fsckd socket from fd: %d. Ignoring", client->fd);
-        else if (r > 0 && r == sizeof(FsckProgress)) {
-                client->devnum = fsck_data.devnum;
-                client->cur = fsck_data.cur;
-                client->max = fsck_data.max;
-                client->pass = fsck_data.pass;
-                client->percent = compute_percent(client->pass, client->cur, client->max);
-                log_debug("Getting progress for %u:%u (%lu, %lu, %d) : %3.1f%%",
-                          major(client->devnum), minor(client->devnum),
-                          client->cur, client->max, client->pass, client->percent);
-        } else
-                log_error_errno(r, "Unknown error while trying to read fsck data: %m");
-
-        manager_update_global_progress(m);
-
-        return 0;
-}
-
-static int manager_new_connection_handler(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
-        _cleanup_(client_freep) Client *c = NULL;
-        _cleanup_close_ int new_client_fd = -1;
-        Manager *m = userdata;
-        int r;
-
-        assert(m);
-
-        /* Initialize and list new clients */
-        new_client_fd = accept4(m->connection_fd, NULL, NULL, SOCK_CLOEXEC);
-        if (new_client_fd < 0)
-                return log_error_errno(errno, "Couldn't accept a new connection: %m");
-
-        if (m->n_clients >= CLIENTS_MAX) {
-                log_error("Too many clients, refusing connection.");
-                return 0;
-        }
-
-        log_debug("New fsck client connected to fd: %d", new_client_fd);
-
-        c = new0(Client, 1);
-        if (!c) {
-                log_oom();
-                return 0;
-        }
-
-        c->fd = new_client_fd;
-        new_client_fd = -1;
-
-        r = sd_event_add_io(m->event, &c->event_source, c->fd, EPOLLIN, client_progress_handler, c);
-        if (r < 0) {
-                log_oom();
-                return 0;
-        }
-
-        LIST_PREPEND(clients, m->clients, c);
-        m->n_clients++;
-        c->manager = m;
-
-        /* only request the client to cancel now in case the request is dropped by the client (chance to recancel) */
-        if (m->cancel_requested)
-                client_request_cancel(c);
-
-        c = NULL;
-        return 0;
-}
-
-static void manager_free(Manager *m) {
-        if (!m)
-                return;
-
-        /* clear last line */
-        manager_write_console(m, NULL);
-
-        sd_event_source_unref(m->connection_event_source);
-        safe_close(m->connection_fd);
-
-        while (m->clients)
-                client_free(m->clients);
-
-        manager_disconnect_plymouth(m);
-
-        sd_event_unref(m->event);
-
-        free(m);
-}
-
-static int manager_new(Manager **ret, int fd) {
-        _cleanup_(manager_freep) Manager *m = NULL;
-        int r;
-
-        assert(ret);
-
-        m = new0(Manager, 1);
-        if (!m)
-                return -ENOMEM;
-
-        m->plymouth_fd = -1;
-        m->connection_fd = fd;
-        m->percent = 100;
-
-        r = sd_event_default(&m->event);
-        if (r < 0)
-                return r;
-
-        if (access("/run/systemd/show-status", F_OK) >= 0)
-                m->show_status_console = true;
-
-        r = sd_event_add_io(m->event, &m->connection_event_source, fd, EPOLLIN, manager_new_connection_handler, m);
-        if (r < 0)
-                return r;
-
-        *ret = m;
-        m = NULL;
-
-        return 0;
-}
-
-static int run_event_loop_with_timeout(sd_event *e, usec_t timeout) {
-        int r, code;
-
-        assert(e);
-
-        for (;;) {
-                r = sd_event_get_state(e);
-                if (r < 0)
-                        return r;
-                if (r == SD_EVENT_FINISHED)
-                        break;
-
-                r = sd_event_run(e, timeout);
-                if (r < 0)
-                        return r;
-
-                /* timeout reached */
-                if (r == 0) {
-                        sd_event_exit(e, 0);
-                        break;
-                }
-        }
-
-        r = sd_event_get_exit_code(e, &code);
-        if (r < 0)
-                return r;
-
-        return code;
-}
-
-static void help(void) {
-        printf("%s [OPTIONS...]\n\n"
-               "Capture fsck progress and forward one stream to plymouth\n\n"
-               "  -h --help             Show this help\n"
-               "     --version          Show package version\n",
-               program_invocation_short_name);
-}
-
-static int parse_argv(int argc, char *argv[]) {
-
-        enum {
-                ARG_VERSION = 0x100,
-                ARG_ROOT,
-        };
-
-        static const struct option options[] = {
-                { "help",      no_argument,       NULL, 'h'           },
-                { "version",   no_argument,       NULL, ARG_VERSION   },
-                {}
-        };
-
-        int c;
-
-        assert(argc >= 0);
-        assert(argv);
-
-        while ((c = getopt_long(argc, argv, "hv", options, NULL)) >= 0)
-                switch (c) {
-
-                case 'h':
-                        help();
-                        return 0;
-
-                case ARG_VERSION:
-                        puts(PACKAGE_STRING);
-                        puts(SYSTEMD_FEATURES);
-                        return 0;
-
-                case '?':
-                        return -EINVAL;
-
-                default:
-                        assert_not_reached("Unhandled option");
-                }
-
-        if (optind < argc) {
-                log_error("Extraneous arguments");
-                return -EINVAL;
-        }
-
-        return 1;
-}
-
-int main(int argc, char *argv[]) {
-        _cleanup_(manager_freep) Manager *m = NULL;
-        int fd = -1;
-        int r, n;
-
-        log_set_target(LOG_TARGET_AUTO);
-        log_parse_environment();
-        log_open();
-        init_gettext();
-
-        r = parse_argv(argc, argv);
-        if (r <= 0)
-                goto finish;
-
-        n = sd_listen_fds(0);
-        if (n > 1) {
-                log_error("Too many file descriptors received.");
-                r = -EINVAL;
-                goto finish;
-        } else if (n == 1)
-                fd = SD_LISTEN_FDS_START + 0;
-        else {
-                fd = make_socket_fd(LOG_DEBUG, FSCKD_SOCKET_PATH, SOCK_STREAM | SOCK_CLOEXEC);
-                if (fd < 0) {
-                        r = log_error_errno(fd, "Couldn't create listening socket fd on %s: %m", FSCKD_SOCKET_PATH);
-                        goto finish;
-                }
-        }
-
-        r = manager_new(&m, fd);
-        if (r < 0) {
-                log_error_errno(r, "Failed to allocate manager: %m");
-                goto finish;
-        }
-
-        r = run_event_loop_with_timeout(m->event, IDLE_TIME_SECONDS * USEC_PER_SEC);
-        if (r < 0) {
-                log_error_errno(r, "Failed to run event loop: %m");
-                goto finish;
-        }
-
-        sd_event_get_exit_code(m->event, &r);
-
-finish:
-        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
-}