X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Ffsck%2Ffsck.c;h=9ecba99bb1a7b4c28f11d21658412945163709ab;hb=19e887e709c31ee4366ec44a770d3963cd48cb86;hp=4f1aa22f9df00e054db83f3f2140645f66625488;hpb=94192cdaf652c9717f15274504ed315126c07a93;p=elogind.git diff --git a/src/fsck/fsck.c b/src/fsck/fsck.c index 4f1aa22f9..9ecba99bb 100644 --- a/src/fsck/fsck.c +++ b/src/fsck/fsck.c @@ -4,6 +4,7 @@ This file is part of systemd. Copyright 2010 Lennart Poettering + Copyright 2014 Holger Hans Peter Freyther 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 @@ -26,6 +27,7 @@ #include #include #include +#include #include "sd-bus.h" #include "libudev.h" @@ -34,24 +36,27 @@ #include "special.h" #include "bus-util.h" #include "bus-error.h" -#include "bus-errors.h" +#include "bus-common-errors.h" #include "fileio.h" #include "udev-util.h" +#include "path-util.h" +#include "socket-util.h" +#include "fsckd/fsckd.h" static bool arg_skip = false; static bool arg_force = false; -static bool arg_show_progress = false; +static const char *arg_repair = "-a"; static void start_target(const char *target) { _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_bus_unref_ sd_bus *bus = NULL; + _cleanup_bus_close_unref_ sd_bus *bus = NULL; int r; assert(target); r = bus_open_system_systemd(&bus); if (r < 0) { - log_error("Failed to get D-Bus connection: %s", strerror(-r)); + log_error_errno(r, "Failed to get D-Bus connection: %m"); return; } @@ -72,43 +77,47 @@ static void start_target(const char *target) { log_error("Failed to start unit: %s", bus_error_message(&error, -r)); } -static int parse_proc_cmdline(void) { - char *line, *w, *state; - size_t l; - int r; - - r = proc_cmdline(&line); - if (r < 0) - log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); - if (r <= 0) - return 0; +static int parse_proc_cmdline_item(const char *key, const char *value) { - FOREACH_WORD_QUOTED(w, l, line, state) { + if (streq(key, "fsck.mode") && value) { - if (strneq(w, "fsck.mode=auto", l)) + if (streq(value, "auto")) arg_force = arg_skip = false; - else if (strneq(w, "fsck.mode=force", l)) + else if (streq(value, "force")) arg_force = true; - else if (strneq(w, "fsck.mode=skip", l)) + else if (streq(value, "skip")) arg_skip = true; - else if (startswith(w, "fsck")) - log_warning("Invalid fsck parameter. Ignoring."); + else + log_warning("Invalid fsck.mode= parameter '%s'. Ignoring.", value); + + } else if (streq(key, "fsck.repair") && value) { + + if (streq(value, "preen")) + arg_repair = "-a"; + else if (streq(value, "yes")) + arg_repair = "-y"; + else if (streq(value, "no")) + arg_repair = "-n"; + else + log_warning("Invalid fsck.repair= parameter '%s'. Ignoring.", value); + } + #ifdef HAVE_SYSV_COMPAT - else if (strneq(w, "fastboot", l)) { - log_error("Please pass 'fsck.mode=skip' rather than 'fastboot' on the kernel command line."); - arg_skip = true; - } else if (strneq(w, "forcefsck", l)) { - log_error("Please pass 'fsck.mode=force' rather than 'forcefsck' on the kernel command line."); - arg_force = true; - } -#endif + else if (streq(key, "fastboot") && !value) { + log_warning("Please pass 'fsck.mode=skip' rather than 'fastboot' on the kernel command line."); + arg_skip = true; + + } else if (streq(key, "forcefsck") && !value) { + log_warning("Please pass 'fsck.mode=force' rather than 'forcefsck' on the kernel command line."); + arg_force = true; } +#endif - free(line); return 0; } static void test_files(void) { + #ifdef HAVE_SYSV_COMPAT if (access("/fastboot", F_OK) >= 0) { log_error("Please pass 'fsck.mode=skip' on the kernel command line rather than creating /fastboot on the root file system."); @@ -121,62 +130,38 @@ static void test_files(void) { } #endif - if (access("/run/systemd/show-status", F_OK) >= 0 || plymouth_running()) - arg_show_progress = true; } -static double percent(int pass, unsigned long cur, unsigned long max) { - /* Values stolen from e2fsck */ - - static const int pass_table[] = { - 0, 70, 90, 92, 95, 100 +static int process_progress(int fd, dev_t device_num) { + _cleanup_fclose_ FILE *f = NULL; + usec_t last = 0; + _cleanup_close_ int fsckd_fd = -1; + static const union sockaddr_union sa = { + .un.sun_family = AF_UNIX, + .un.sun_path = FSCKD_SOCKET_PATH, }; - if (pass <= 0) - return 0.0; - - if ((unsigned) pass >= ELEMENTSOF(pass_table) || max == 0) - return 100.0; - - return (double) pass_table[pass-1] + - ((double) pass_table[pass] - (double) pass_table[pass-1]) * - (double) cur / (double) max; -} - -static int process_progress(int fd) { - _cleanup_fclose_ FILE *console = NULL, *f = NULL; - usec_t last = 0; - bool locked = false; - int clear = 0; + fsckd_fd = socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0); + if (fsckd_fd < 0) + return log_warning_errno(errno, "Cannot open fsckd socket, we won't report fsck progress: %m"); + if (connect(fsckd_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) + return log_warning_errno(errno, "Cannot connect to fsckd socket, we won't report fsck progress: %m"); f = fdopen(fd, "r"); - if (!f) { - close_nointr_nofail(fd); - return -errno; - } - - console = fopen("/dev/console", "w"); - if (!console) - return -ENOMEM; + if (!f) + return log_warning_errno(errno, "Cannot connect to fsck, we won't report fsck progress: %m"); while (!feof(f)) { - int pass, m; - unsigned long cur, max; - _cleanup_free_ char *device = NULL; - double p; + int pass; + size_t cur, max; + ssize_t n; usec_t t; + _cleanup_free_ char *device = NULL; + FsckProgress progress; if (fscanf(f, "%i %lu %lu %ms", &pass, &cur, &max, &device) != 4) break; - /* Only show one progress counter at max */ - if (!locked) { - if (flock(fileno(console), LOCK_EX|LOCK_NB) < 0) - continue; - - locked = true; - } - /* Only update once every 50ms */ t = now(CLOCK_MONOTONIC); if (last + 50 * USEC_PER_MSEC > t) @@ -184,22 +169,15 @@ static int process_progress(int fd) { last = t; - p = percent(pass, cur, max); - fprintf(console, "\r%s: fsck %3.1f%% complete...\r%n", device, p, &m); - fflush(console); - - if (m > clear) - clear = m; - } - - if (clear > 0) { - unsigned j; + /* send progress to fsckd */ + progress.devnum = device_num; + progress.cur = cur; + progress.max = max; + progress.pass = pass; - fputc('\r', console); - for (j = 0; j < (unsigned) clear; j++) - fputc(' ', console); - fputc('\r', console); - fflush(console); + n = send(fsckd_fd, &progress, sizeof(FsckProgress), 0); + if (n < 0 || (size_t) n < sizeof(FsckProgress)) + log_warning_errno(errno, "Cannot communicate fsck progress to fsckd: %m"); } return 0; @@ -215,7 +193,7 @@ int main(int argc, char *argv[]) { const char *device, *type; bool root_directory; int progress_pipe[2] = { -1, -1 }; - char dash_c[2+10+1]; + char dash_c[sizeof("-C")-1 + DECIMAL_STR_MAX(int) + 1]; struct stat st; if (argc > 2) { @@ -229,7 +207,10 @@ int main(int argc, char *argv[]) { umask(0022); - parse_proc_cmdline(); + q = parse_proc_cmdline(parse_proc_cmdline_item); + if (q < 0) + log_warning_errno(q, "Failed to parse kernel command line, ignoring: %m"); + test_files(); if (!arg_force && arg_skip) @@ -246,7 +227,7 @@ int main(int argc, char *argv[]) { root_directory = false; if (stat(device, &st) < 0) { - log_error("Failed to stat '%s': %m", device); + log_error_errno(errno, "Failed to stat '%s': %m", device); return EXIT_FAILURE; } @@ -261,7 +242,7 @@ int main(int argc, char *argv[]) { /* Find root device */ if (stat("/", &st) < 0) { - log_error("Failed to stat() the root directory: %m"); + log_error_errno(errno, "Failed to stat() the root directory: %m"); return EXIT_FAILURE; } @@ -294,26 +275,28 @@ int main(int argc, char *argv[]) { type = udev_device_get_property_value(udev_device, "ID_FS_TYPE"); if (type) { - const char *checker = strappenda("/sbin/fsck.", type); - r = access(checker, X_OK); - if (r < 0) { - if (errno == ENOENT) { - log_info("%s doesn't exist, not checking file system.", checker); - return EXIT_SUCCESS; - } else - log_warning("%s cannot be used: %m", checker); - } + r = fsck_exists(type); + if (r == -ENOENT) { + log_info("fsck.%s doesn't exist, not checking file system on %s", type, device); + return EXIT_SUCCESS; + } else if (r < 0) + log_warning_errno(r, "fsck.%s cannot be used for %s: %m", type, device); } - if (arg_show_progress) - if (pipe(progress_pipe) < 0) { - log_error("pipe(): %m"); - return EXIT_FAILURE; - } + if (pipe(progress_pipe) < 0) { + log_error_errno(errno, "pipe(): %m"); + return EXIT_FAILURE; + } cmdline[i++] = "/sbin/fsck"; - cmdline[i++] = "-a"; + cmdline[i++] = arg_repair; cmdline[i++] = "-T"; + + /* + * Since util-linux v2.25 fsck uses /run/fsck/.lock files. + * The previous versions use flock for the device and conflict with + * udevd, see https://bugs.freedesktop.org/show_bug.cgi?id=79576#c5 + */ cmdline[i++] = "-l"; if (!root_directory) @@ -323,8 +306,7 @@ int main(int argc, char *argv[]) { cmdline[i++] = "-f"; if (progress_pipe[1] >= 0) { - snprintf(dash_c, sizeof(dash_c), "-C%i", progress_pipe[1]); - char_array_0(dash_c); + xsprintf(dash_c, "-C%i", progress_pipe[1]); cmdline[i++] = dash_c; } @@ -333,29 +315,26 @@ int main(int argc, char *argv[]) { pid = fork(); if (pid < 0) { - log_error("fork(): %m"); + log_error_errno(errno, "fork(): %m"); goto finish; } else if (pid == 0) { /* Child */ if (progress_pipe[0] >= 0) - close_nointr_nofail(progress_pipe[0]); + safe_close(progress_pipe[0]); execv(cmdline[0], (char**) cmdline); _exit(8); /* Operational error */ } - if (progress_pipe[1] >= 0) { - close_nointr_nofail(progress_pipe[1]); - progress_pipe[1] = -1; - } + progress_pipe[1] = safe_close(progress_pipe[1]); if (progress_pipe[0] >= 0) { - process_progress(progress_pipe[0]); + process_progress(progress_pipe[0], st.st_rdev); progress_pipe[0] = -1; } q = wait_for_terminate(pid, &status); if (q < 0) { - log_error("waitid(): %s", strerror(-q)); + log_error_errno(q, "waitid(): %m"); goto finish; } @@ -386,7 +365,7 @@ int main(int argc, char *argv[]) { touch("/run/systemd/quotacheck"); finish: - close_pipe(progress_pipe); + safe_close_pair(progress_pipe); return r; }