/*
* early liblustre init
* called from C startup in catamount apps, before main()
*
* The following is a skeleton sysio startup sequence,
* as implemented in C startup (skipping error handling).
* In this framework none of these calls need be made here
* or in the apps themselves. The NAMESPACE_STRING specifying
* the initial set of fs ops (creates, mounts, etc.) is passed
* as an environment variable.
*
* _sysio_init();
* _sysio_incore_init();
* _sysio_native_init();
* _sysio_lustre_init();
* _sysio_boot(NAMESPACE_STRING);
*
* the name _sysio_lustre_init() follows the naming convention
* established in other fs drivers from libsysio:
* _sysio_incore_init(), _sysio_native_init()
*
* _sysio_lustre_init() must be called before _sysio_boot()
* to enable libsysio's processing of namespace init strings containing
* lustre filesystem operations
*/
int _sysio_lustre_init(void)
{
int err;
char *envstr;
#ifndef INIT_SYSIO
extern void __liblustre_cleanup_(void);
#endif
liblustre_init_random();
err = lllib_init();
if (err) {
perror("init llite driver");
return err;
}
envstr = getenv("LIBLUSTRE_TIMEOUT");
if (envstr != NULL) {
obd_timeout = (unsigned int)strtol(envstr, NULL, 0);
printf("LibLustre: obd timeout=%u seconds\n",
obd_timeout);
}
/* debug peer on timeout? */
envstr = getenv("LIBLUSTRE_DEBUG_PEER_ON_TIMEOUT");
if (envstr != NULL) {
obd_debug_peer_on_timeout =
(unsigned int)strtol(envstr, NULL, 0);
printf("LibLustre: debug peer on timeout=%d\n",
obd_debug_peer_on_timeout ? 0 : 1);
}
#ifndef INIT_SYSIO
(void)atexit(__liblustre_cleanup_);
#endif
return err;
}
int main(int argc, char **argv)
{
int c, rc;
int xindex = -1; /* index of -x option */
/* loop until all options are consumed or we hit
* a -x option
*/
while ((c = getopt(argc, argv, "s:n:x:")) != -1 &&
xindex == -1) {
switch (c) {
case 's':
echo_server_nid = optarg;
break;
case 'n':
echo_server_ostname = optarg;
break;
case 'x':
xindex = optind-1;
break;
default:
usage(argv[0]);
return 1;
}
}
/*
* Only warn with usage() if the -x option isn't specificed
* because when using -x this check is not valid.
*/
if (optind != argc && xindex == -1)
usage(argv[0]);
if (!echo_server_nid) {
usage(argv[0]);
return 1;
}
libcfs_debug = 0;
libcfs_subsystem_debug = 0;
liblustre_init_random();
if (liblustre_init_current(argv[0]) ||
init_obdclass() || init_lib_portals() ||
ptlrpc_init() ||
lmv_init() ||
mdc_init() ||
lov_init() ||
osc_init() ||
echo_client_init()) {
printf("error\n");
return 1;
}
rc = connect_echo_client();
if (rc)
return rc;
set_ioc_handler(liblustre_ioctl);
/*
* If the -x option is not specified pass no args to lctl
* otherwise pass all the options after the "-x" to lctl
*
* HACK: in the case when the -x option is specified
* lctl sees argv[0] == "-x" and not the real argv[0] seen
* in this function. If that is a problem, a mapping will
* have to be done to fix that. However for normal functioning
* it seems to be irrelavant
*/
if( xindex == -1 )
rc = lctl_main(1, &argv[0]);
else
rc = lctl_main(argc-xindex+1, &argv[xindex-1]);
rc |= disconnect_echo_client();
return rc;
}
