#include "log.h"
#include "util.h"
#include "unit-name.h"
+#include "virt.h"
const char *arg_dest = "/tmp";
char *from = NULL, *to = NULL;
int r;
+ assert(fservice);
+ assert(tservice);
+
asprintf(&from, SYSTEM_DATA_UNIT_PATH "/%s", fservice);
asprintf(&to, "%s/getty.target.wants/%s", arg_dest, tservice);
mkdir_parents(to, 0755);
- if ((r = symlink(from, to)) < 0) {
- log_error("Failed to create symlink from %s to %s: %m", from, to);
- r = -errno;
+ r = symlink(from, to);
+ if (r < 0) {
+ if (errno == EEXIST)
+ /* In case console=hvc0 is passed this will very likely result in EEXIST */
+ r = 0;
+ else {
+ log_error("Failed to create symlink from %s to %s: %m", from, to);
+ r = -errno;
+ }
}
finish:
return r;
}
+static int add_serial_getty(const char *tty) {
+ char *n;
+ int r;
+
+ assert(tty);
+
+ log_debug("Automatically adding serial getty for /dev/%s.", tty);
+
+ n = unit_name_replace_instance("serial-getty@.service", tty);
+ if (!n) {
+ log_error("Out of memory");
+ return -ENOMEM;
+ }
+
+ r = add_symlink("serial-getty@.service", n);
+ free(n);
+
+ return r;
+}
+
int main(int argc, char *argv[]) {
+
+ static const char virtualization_consoles[] =
+ "hvc0\0"
+ "xvc0\0"
+ "hvsi0\0";
+
int r = EXIT_SUCCESS;
char *active;
+ const char *j;
if (argc > 2) {
log_error("This program takes one or no arguments.");
return EXIT_FAILURE;
}
- if (argc > 1)
- arg_dest = argv[1];
-
log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
log_parse_environment();
log_open();
umask(0022);
+ if (argc > 1)
+ arg_dest = argv[1];
+
if (detect_container(NULL) > 0) {
log_debug("Automatically adding console shell.");
if (read_one_line_file("/sys/class/tty/console/active", &active) >= 0) {
const char *tty;
- if ((tty = strrchr(active, ' ')))
+ tty = strrchr(active, ' ');
+ if (tty)
tty ++;
else
tty = active;
/* Automatically add in a serial getty on the kernel
* console */
- if (!tty_is_vc(tty)) {
- char *n;
+ if (tty_is_vc(tty))
+ free(active);
+ else {
+ int k;
/* We assume that gettys on virtual terminals are
* started via manual configuration and do this magic
* only for non-VC terminals. */
- log_debug("Automatically adding serial getty for /dev/%s.", tty);
+ k = add_serial_getty(tty);
+ free(active);
- if (!(n = unit_name_replace_instance("serial-getty@.service", tty)) ||
- add_symlink("serial-getty@.service", n) < 0)
+ if (k < 0) {
r = EXIT_FAILURE;
-
- free(n);
+ goto finish;
+ }
}
-
- free(active);
}
/* Automatically add in a serial getty on the first
* virtualizer console */
- if (access("/sys/class/tty/hvc0", F_OK) == 0) {
- log_debug("Automatically adding serial getty for hvc0.");
+ NULSTR_FOREACH(j, virtualization_consoles) {
+ char *p;
+ int k;
- if (add_symlink("serial-getty@.service", "serial-getty@hvc0.service") < 0)
+ if (asprintf(&p, "/sys/class/tty/%s", j) < 0) {
+ log_error("Out of memory");
r = EXIT_FAILURE;
+ goto finish;
+ }
- }
+ k = access(p, F_OK);
+ free(p);
- if (access("/sys/class/tty/xvc0", F_OK) == 0) {
- log_debug("Automatically adding serial getty for xvc0.");
+ if (k < 0)
+ continue;
- if (add_symlink("serial-getty@.service", "serial-getty@xvc0.service") < 0)
+ k = add_serial_getty(j);
+ if (k < 0) {
r = EXIT_FAILURE;
+ goto finish;
+ }
}
finish: