int main (int argc, char *argv[])
{
char *fn;
int f_ret, u_ret;
prog_name = argv[0];
tvm_argc = argc;
tvm_argv = argv;
if (argc < 2) {
usage (stderr);
return 1;
} else {
fn = argv[1];
}
init_vm ();
if (install_user_ctx (fn) < 0) {
error_out_no_errno ("failed to load user bytecode");
return 1;
}
if (install_firmware_ctx () < 0) {
error_out_no_errno ("failed to install firmware");
return 1;
}
kyb_channel = NOT_PROCESS_P;
scr_channel = NOT_PROCESS_P;
err_channel = NOT_PROCESS_P;
for (;;) {
f_ret = run_firmware ();
u_ret = run_user ();
if ((f_ret == ECTX_EMPTY || f_ret == ECTX_SLEEP) &&
(u_ret == ECTX_EMPTY || u_ret == ECTX_SLEEP)) {
if (firmware->fptr == NOT_PROCESS_P && user->fptr == NOT_PROCESS_P) {
tvm_sleep ();
}
} else if (f_ret == ECTX_ERROR || u_ret == ECTX_ERROR) {
break;
} else if (u_ret == ECTX_SHUTDOWN) {
/* Run firmware to clear buffers */
run_firmware ();
break;
}
}
if (u_ret == ECTX_ERROR) {
tbc_t *tbc = user->priv.bytecode->tbc;
if (tbc->debug) {
tbc_dbg_t *dbg = tbc->debug;
tbc_lnd_t *ln;
tenc_str_t *file;
int offset = user->iptr - tbc->bytecode;
int i = 0;
while (i < dbg->n_lnd) {
if (dbg->lnd[i].offset > offset) {
break;
}
i++;
}
ln = &(dbg->lnd[i - 1]);
file = dbg->files;
for (i = 0; i < ln->file; ++i) {
file = file->next;
}
fprintf (stderr,
"Error at %s:%d\n",
file->str, ln->line
);
}
/* FIXME: more debugging */
fprintf (stderr,
"Program failed, state = %c, eflags = %08x\n",
user->state, user->eflags
);
return 1;
}
free_ectx (firmware);
free_ectx (user);
free_bytecode (fw_bc);
free_bytecode (us_bc);
#ifdef TVM_PROFILING
output_profiling ();
#endif
return 0;
}
int server_start(server_t *s)
{
if (!getuid())
{
uid_t uid = 0;
gid_t gid = 0;
run_user(s, &uid, &gid);
run_group(s, &gid);
// runtime data directory
if (run_mkdir(JOURNAL_RUNDIR) < 0)
{
log_error("Failed to create '%s' directory: %m", JOURNAL_RUNDIR);
return -1;
}
if (chown(JOURNAL_RUNDIR, uid, gid) < 0)
{
log_error("Unable to change owner “%s” directory to %s(%s): %m", JOURNAL_RUNDIR, s->runuser, s->rungroup);
return -1;
}
syslog_run(s);
// variable data directory
if (run_mkdir(JOURNAL_LOGDIR) < 0)
log_warning("Failed to create '%s' directory: %m", JOURNAL_LOGDIR);
else
{
if (errno != EEXIST && chown(JOURNAL_LOGDIR, uid, gid) < 0)
log_warning("Unable to change owner “%s” directory to %s(%s): %m", JOURNAL_LOGDIR, s->runuser, s->rungroup);
}
// change user and group of process
if (gid > 0 && run_chgroup(gid) < 0)
{
log_error("Unable change group to “%s”: %m", s->rungroup);
return -1;
}
if (uid > 0 && run_chuser(uid) < 0)
{
log_error("Unable change user to “%s”: %m", s->runuser);
return -1;
}
}
if (epollfd_create(&s->epoll) < 0)
{
log_error("Failed to create event loop: %m");
return -1;
}
s->msg = msg_new(LINE_MAX);
if (!s->msg)
return -1;
seqnum_load(JOURNAL_RUNDIR "/kernel-seqnum", &s->kseqnum);
if (hostname_open(s) < 0)
return -1;
boot_get_id(&s->boot_id);
return 0;
}
