#include "sd-daemon.h"
#include "sd-bus.h"
+#include "alloc-util.h"
#include "architecture.h"
#include "build.h"
#include "bus-error.h"
#include "bus-util.h"
-#include "capability.h"
+#include "capability-util.h"
#include "clock-util.h"
#include "conf-parser.h"
#include "cpu-set-util.h"
#include "dbus-manager.h"
#include "def.h"
#include "env-util.h"
+#include "fd-util.h"
#include "fdset.h"
#include "fileio.h"
#include "formats-util.h"
+#include "fs-util.h"
#include "hostname-setup.h"
#include "ima-setup.h"
#include "killall.h"
#include "missing.h"
#include "mount-setup.h"
#include "pager.h"
+#include "parse-util.h"
+#include "proc-cmdline.h"
#include "process-util.h"
+#include "rlimit-util.h"
#include "selinux-setup.h"
#include "selinux-util.h"
#include "signal-util.h"
#include "smack-setup.h"
#include "special.h"
+#include "stat-util.h"
+#include "stdio-util.h"
#include "strv.h"
#include "switch-root.h"
#include "terminal-util.h"
+#include "user-util.h"
#include "virt.h"
#include "watchdog.h"
}
noreturn static void crash(int sig) {
+ struct sigaction sa;
+ pid_t pid;
if (getpid() != 1)
/* Pass this on immediately, if this is not PID 1 */
else if (!arg_dump_core)
log_emergency("Caught <%s>, not dumping core.", signal_to_string(sig));
else {
- struct sigaction sa = {
+ sa = (struct sigaction) {
.sa_handler = nop_signal_handler,
.sa_flags = SA_NOCLDSTOP|SA_RESTART,
};
- pid_t pid;
/* We want to wait for the core process, hence let's enable SIGCHLD */
(void) sigaction(SIGCHLD, &sa, NULL);
if (arg_crash_chvt >= 0)
(void) chvt(arg_crash_chvt);
- if (arg_crash_shell) {
- struct sigaction sa = {
- .sa_handler = SIG_IGN,
- .sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART,
- };
- pid_t pid;
+ sa = (struct sigaction) {
+ .sa_handler = SIG_IGN,
+ .sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART,
+ };
+ /* Let the kernel reap children for us */
+ (void) sigaction(SIGCHLD, &sa, NULL);
+
+ if (arg_crash_shell) {
log_notice("Executing crash shell in 10s...");
(void) sleep(10);
- /* Let the kernel reap children for us */
- (void) sigaction(SIGCHLD, &sa, NULL);
-
pid = raw_clone(SIGCHLD, NULL);
if (pid < 0)
log_emergency_errno(errno, "Failed to fork off crash shell: %m");
(void) execle("/bin/sh", "/bin/sh", NULL, environ);
log_emergency_errno(errno, "execle() failed: %m");
- freeze_or_reboot();
_exit(EXIT_FAILURE);
} else {
log_info("Spawned crash shell as PID "PID_FMT".", pid);
- freeze();
+ (void) wait_for_terminate(pid, NULL);
}
}
assert(filename);
assert(lvalue);
assert(rvalue);
- assert(data);
r = parse_crash_chvt(rvalue);
if (r < 0) {
for (a = arg_join_controllers; *a; a++) {
if (strv_overlap(*a, l)) {
- if (strv_extend_strv(&l, *a) < 0) {
+ if (strv_extend_strv(&l, *a, false) < 0) {
strv_free(l);
strv_free_free(t);
return log_oom();
return 0;
}
-static void test_mtab(void) {
-
- static const char ok[] =
- "/proc/self/mounts\0"
- "/proc/mounts\0"
- "../proc/self/mounts\0"
- "../proc/mounts\0";
-
- _cleanup_free_ char *p = NULL;
- int r;
-
- /* Check that /etc/mtab is a symlink to the right place or
- * non-existing. But certainly not a file, or a symlink to
- * some weird place... */
-
- r = readlink_malloc("/etc/mtab", &p);
- if (r == -ENOENT)
- return;
- if (r >= 0 && nulstr_contains(ok, p))
- return;
-
- log_error("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. "
- "This is not supported anymore. "
- "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output.");
- freeze_or_reboot();
-}
-
static void test_usr(void) {
/* Check that /usr is not a separate fs */
static int write_container_id(void) {
const char *c;
+ int r;
c = getenv("container");
if (isempty(c))
return 0;
- return write_string_file("/run/systemd/container", c, WRITE_STRING_FILE_CREATE);
+ r = write_string_file("/run/systemd/container", c, WRITE_STRING_FILE_CREATE);
+ if (r < 0)
+ return log_warning_errno(r, "Failed to write /run/systed/container, ignoring: %m");
+
+ return 1;
+}
+
+static int bump_unix_max_dgram_qlen(void) {
+ _cleanup_free_ char *qlen = NULL;
+ unsigned long v;
+ int r;
+
+ /* Let's bump the net.unix.max_dgram_qlen sysctl. The kernel
+ * default of 16 is simply too low. We set the value really
+ * really early during boot, so that it is actually applied to
+ * all our sockets, including the $NOTIFY_SOCKET one. */
+
+ r = read_one_line_file("/proc/sys/net/unix/max_dgram_qlen", &qlen);
+ if (r < 0)
+ return log_warning_errno(r, "Failed to read AF_UNIX datagram queue length, ignoring: %m");
+
+ r = safe_atolu(qlen, &v);
+ if (r < 0)
+ return log_warning_errno(r, "Failed to parse AF_UNIX datagram queue length, ignoring: %m");
+
+ if (v >= DEFAULT_UNIX_MAX_DGRAM_QLEN)
+ return 0;
+
+ qlen = mfree(qlen);
+ if (asprintf(&qlen, "%lu\n", DEFAULT_UNIX_MAX_DGRAM_QLEN) < 0)
+ return log_oom();
+
+ r = write_string_file("/proc/sys/net/unix/max_dgram_qlen", qlen, 0);
+ if (r < 0)
+ return log_full_errno(IN_SET(r, -EROFS, -EPERM, -EACCES) ? LOG_DEBUG : LOG_WARNING, r,
+ "Failed to bump AF_UNIX datagram queue length, ignoring: %m");
+
+ return 1;
}
int main(int argc, char *argv[]) {
hostname_setup();
machine_id_setup(NULL);
loopback_setup();
+ bump_unix_max_dgram_qlen();
- test_mtab();
test_usr();
}
projects / thirdparty / systemd.git / blobdiff