static char *convert_hostnames(char *s1)
{
char *converted, *s2 = 0, *c;
char sep;
int left = MAXNIDSTR;
lnet_nid_t nid;
converted = malloc(left);
if (converted == NULL) {
fprintf(stderr, "out of memory: needed %d bytes\n",
MAXNIDSTR);
return NULL;
}
c = converted;
while ((left > 0) && (*s1 != '/')) {
s2 = strpbrk(s1, ",:");
if (!s2)
goto out_free;
sep = *s2;
*s2 = '\0';
nid = libcfs_str2nid(s1);
*s2 = sep; /* back to original string */
if (nid == LNET_NID_ANY)
goto out_free;
c += snprintf(c, left, "%s%c", libcfs_nid2str(nid), sep);
left = converted + MAXNIDSTR - c;
s1 = s2 + 1;
}
snprintf(c, left, "%s", s1);
return converted;
out_free:
fprintf(stderr, "%s: Can't parse NID '%s'\n", progname, s1);
free(converted);
return NULL;
}
int
sli_rmi_setmds(const char *name)
{
struct slashrpc_cservice *csvc;
struct sl_resource *res;
// struct sl_resm *old;
lnet_nid_t nid;
/* XXX kill any old MDS and purge any bmap updates being held */
// slconnthr_unwatch(rmi_resm->resm_csvc);
// old = rmi_resm;
// sl_csvc_disable(old->resm_csvc);
nid = libcfs_str2nid(name);
if (nid == LNET_NID_ANY) {
res = libsl_str2res(name);
if (res == NULL)
return (SLERR_RES_UNKNOWN);
rmi_resm = psc_dynarray_getpos(&res->res_members, 0);
} else
rmi_resm = libsl_nid2resm(nid);
if (sli_rmi_getcsvc(&csvc))
psclog_errorx("error connecting to MDS");
else {
slconnthr_watch(sliconnthr, csvc, CSVCF_PING, NULL,
NULL);
sl_csvc_decref(csvc);
}
return (0);
}
int
libcfs_str2anynid(lnet_nid_t *nidp, const char *str)
{
if (!strcmp(str, "*")) {
*nidp = LNET_NID_ANY;
return 1;
}
*nidp = libcfs_str2nid(str);
return *nidp != LNET_NID_ANY;
}
int jt_lcfg_add_uuid(int argc, char **argv)
{
lnet_nid_t nid;
if (argc != 3) {
return CMD_HELP;
}
nid = libcfs_str2nid(argv[2]);
if (nid == LNET_NID_ANY) {
fprintf (stderr, "Can't parse NID %s\n", argv[2]);
return (-1);
}
return do_add_uuid(argv[0], argv[1], nid);
}
static char *convert_hostnames(char *s1)
{
char *converted, *s2 = 0, *c, *end, sep;
int left = MAXNIDSTR;
lnet_nid_t nid;
converted = malloc(left);
if (converted == NULL) {
return NULL;
}
end = s1 + strlen(s1);
c = converted;
while ((left > 0) && (s1 < end)) {
s2 = strpbrk(s1, ",:");
if (!s2)
s2 = end;
sep = *s2;
*s2 = '\0';
nid = libcfs_str2nid(s1);
*s2 = sep;
if (nid == LNET_NID_ANY) {
fprintf(stderr, "%s: Cannot resolve hostname '%s'.\n",
progname, s1);
free(converted);
return NULL;
}
if (strncmp(libcfs_nid2str(nid), "127.0.0.1",
strlen("127.0.0.1")) == 0) {
fprintf(stderr, "%s: The NID '%s' resolves to the "
"loopback address '%s'. Lustre requires a "
"non-loopback address.\n",
progname, s1, libcfs_nid2str(nid));
free(converted);
return NULL;
}
c += snprintf(c, left, "%s%c", libcfs_nid2str(nid), sep);
left = converted + MAXNIDSTR - c;
s1 = s2 + 1;
}
return converted;
}
int lustre_lnet_config_route(char *nw, char *gw, int hops, int prio,
int seq_no, struct cYAML **err_rc)
{
struct lnet_ioctl_config_data data;
lnet_nid_t gateway_nid;
int rc = LUSTRE_CFG_RC_NO_ERR;
__u32 net = LNET_NIDNET(LNET_NID_ANY);
char err_str[LNET_MAX_STR_LEN];
snprintf(err_str, sizeof(err_str), "\"Success\"");
if (nw == NULL || gw == NULL) {
snprintf(err_str,
sizeof(err_str),
"\"missing mandatory parameter(s): '%s'\"",
(nw == NULL && gw == NULL) ? "network, gateway" :
(nw == NULL) ? "network" : "gateway");
rc = LUSTRE_CFG_RC_MISSING_PARAM;
goto out;
}
net = libcfs_str2net(nw);
if (net == LNET_NIDNET(LNET_NID_ANY)) {
snprintf(err_str,
sizeof(err_str),
"\"cannot parse net %s\"", nw);
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
if (LNET_NETTYP(net) == CIBLND ||
LNET_NETTYP(net) == OPENIBLND ||
LNET_NETTYP(net) == IIBLND ||
LNET_NETTYP(net) == VIBLND) {
snprintf(err_str,
sizeof(err_str),
"\"obselete LNet type '%s'\"", libcfs_lnd2str(net));
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
gateway_nid = libcfs_str2nid(gw);
if (gateway_nid == LNET_NID_ANY) {
snprintf(err_str,
sizeof(err_str),
"\"cannot parse gateway NID '%s'\"", gw);
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
if (hops == -1) {
/* hops is undefined */
hops = LNET_UNDEFINED_HOPS;
} else if (hops < 1 || hops > 255) {
snprintf(err_str,
sizeof(err_str),
"\"invalid hop count %d, must be between 1 and 255\"",
hops);
rc = LUSTRE_CFG_RC_OUT_OF_RANGE_PARAM;
goto out;
}
if (prio == -1) {
prio = 0;
} else if (prio < 0) {
snprintf(err_str,
sizeof(err_str),
"\"invalid priority %d, must be greater than 0\"",
prio);
rc = LUSTRE_CFG_RC_OUT_OF_RANGE_PARAM;
goto out;
}
LIBCFS_IOC_INIT_V2(data, cfg_hdr);
data.cfg_net = net;
data.cfg_config_u.cfg_route.rtr_hop = hops;
data.cfg_config_u.cfg_route.rtr_priority = prio;
data.cfg_nid = gateway_nid;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_ADD_ROUTE, &data);
if (rc != 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot add route: %s\"", strerror(errno));
goto out;
}
out:
cYAML_build_error(rc, seq_no, ADD_CMD, "route", err_str, err_rc);
return rc;
}
int lustre_lnet_show_route(char *nw, char *gw, int hops, int prio, int detail,
int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct lnet_ioctl_config_data data;
lnet_nid_t gateway_nid;
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
int l_errno = 0;
__u32 net = LNET_NIDNET(LNET_NID_ANY);
int i;
struct cYAML *root = NULL, *route = NULL, *item = NULL;
struct cYAML *first_seq = NULL;
char err_str[LNET_MAX_STR_LEN];
bool exist = false;
snprintf(err_str, sizeof(err_str),
"\"out of memory\"");
if (nw != NULL) {
net = libcfs_str2net(nw);
if (net == LNET_NIDNET(LNET_NID_ANY)) {
snprintf(err_str,
sizeof(err_str),
"\"cannot parse net '%s'\"", nw);
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
if (LNET_NETTYP(net) == CIBLND ||
LNET_NETTYP(net) == OPENIBLND ||
LNET_NETTYP(net) == IIBLND ||
LNET_NETTYP(net) == VIBLND) {
snprintf(err_str,
sizeof(err_str),
"\"obsolete LNet type '%s'\"",
libcfs_lnd2str(net));
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
} else {
/* show all routes without filtering on net */
net = LNET_NIDNET(LNET_NID_ANY);
}
if (gw != NULL) {
gateway_nid = libcfs_str2nid(gw);
if (gateway_nid == LNET_NID_ANY) {
snprintf(err_str,
sizeof(err_str),
"\"cannot parse gateway NID '%s'\"", gw);
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
} else
/* show all routes with out filtering on gateway */
gateway_nid = LNET_NID_ANY;
if ((hops < 1 && hops != -1) || hops > 255) {
snprintf(err_str,
sizeof(err_str),
"\"invalid hop count %d, must be between 0 and 256\"",
hops);
rc = LUSTRE_CFG_RC_OUT_OF_RANGE_PARAM;
goto out;
}
/* create struct cYAML root object */
root = cYAML_create_object(NULL, NULL);
if (root == NULL)
goto out;
route = cYAML_create_seq(root, "route");
if (route == NULL)
goto out;
for (i = 0;; i++) {
LIBCFS_IOC_INIT_V2(data, cfg_hdr);
data.cfg_count = i;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_ROUTE, &data);
if (rc != 0) {
l_errno = errno;
break;
}
/* filter on provided data */
if (net != LNET_NIDNET(LNET_NID_ANY) &&
net != data.cfg_net)
continue;
if (gateway_nid != LNET_NID_ANY &&
gateway_nid != data.cfg_nid)
continue;
if (hops != -1 &&
hops != data.cfg_config_u.cfg_route.rtr_hop)
continue;
if (prio != -1 &&
prio != data.cfg_config_u.cfg_route.rtr_priority)
continue;
/* default rc to -1 incase we hit the goto */
rc = -1;
exist = true;
item = cYAML_create_seq_item(route);
if (item == NULL)
goto out;
if (first_seq == NULL)
first_seq = item;
if (cYAML_create_string(item, "net",
libcfs_net2str(data.cfg_net)) == NULL)
goto out;
if (cYAML_create_string(item, "gateway",
libcfs_nid2str(data.cfg_nid)) == NULL)
goto out;
if (detail) {
if (cYAML_create_number(item, "hop",
data.cfg_config_u.cfg_route.
rtr_hop) ==
NULL)
goto out;
if (cYAML_create_number(item, "priority",
data.cfg_config_u.
cfg_route.rtr_priority) == NULL)
goto out;
if (cYAML_create_string(item, "state",
data.cfg_config_u.cfg_route.
rtr_flags ?
"up" : "down") == NULL)
goto out;
}
}
/* print output iff show_rc is not provided */
if (show_rc == NULL)
cYAML_print_tree(root);
if (l_errno != ENOENT) {
snprintf(err_str,
sizeof(err_str),
"\"cannot get routes: %s\"",
strerror(l_errno));
rc = -l_errno;
goto out;
} else
rc = LUSTRE_CFG_RC_NO_ERR;
snprintf(err_str, sizeof(err_str), "\"success\"");
out:
if (show_rc == NULL || rc != LUSTRE_CFG_RC_NO_ERR || !exist) {
cYAML_free_tree(root);
} else if (show_rc != NULL && *show_rc != NULL) {
struct cYAML *show_node;
/* find the route node, if one doesn't exist then
* insert one. Otherwise add to the one there
*/
show_node = cYAML_get_object_item(*show_rc, "route");
if (show_node != NULL && cYAML_is_sequence(show_node)) {
cYAML_insert_child(show_node, first_seq);
free(route);
free(root);
} else if (show_node == NULL) {
cYAML_insert_sibling((*show_rc)->cy_child,
route);
free(root);
} else {
cYAML_free_tree(root);
}
} else {
*show_rc = root;
}
cYAML_build_error(rc, seq_no, SHOW_CMD, "route", err_str, err_rc);
return rc;
}
int lustre_lnet_del_route(char *nw, char *gw,
int seq_no, struct cYAML **err_rc)
{
struct lnet_ioctl_config_data data;
lnet_nid_t gateway_nid;
int rc = LUSTRE_CFG_RC_NO_ERR;
__u32 net = LNET_NIDNET(LNET_NID_ANY);
char err_str[LNET_MAX_STR_LEN];
snprintf(err_str, sizeof(err_str), "\"Success\"");
if (nw == NULL || gw == NULL) {
snprintf(err_str,
sizeof(err_str),
"\"missing mandatory parameter(s): '%s'\"",
(nw == NULL && gw == NULL) ? "network, gateway" :
(nw == NULL) ? "network" : "gateway");
rc = LUSTRE_CFG_RC_MISSING_PARAM;
goto out;
}
net = libcfs_str2net(nw);
if (net == LNET_NIDNET(LNET_NID_ANY)) {
snprintf(err_str,
sizeof(err_str),
"\"cannot parse net '%s'\"", nw);
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
if (LNET_NETTYP(net) == CIBLND ||
LNET_NETTYP(net) == OPENIBLND ||
LNET_NETTYP(net) == IIBLND ||
LNET_NETTYP(net) == VIBLND) {
snprintf(err_str,
sizeof(err_str),
"\"obselete LNet type '%s'\"", libcfs_lnd2str(net));
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
gateway_nid = libcfs_str2nid(gw);
if (gateway_nid == LNET_NID_ANY) {
snprintf(err_str,
sizeof(err_str),
"\"cannot parse gateway NID '%s'\"", gw);
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
LIBCFS_IOC_INIT_V2(data, cfg_hdr);
data.cfg_net = net;
data.cfg_nid = gateway_nid;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_DEL_ROUTE, &data);
if (rc != 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot delete route: %s\"", strerror(errno));
goto out;
}
out:
cYAML_build_error(rc, seq_no, DEL_CMD, "route", err_str, err_rc);
return rc;
}
static int
parse_perm_line(struct identity_downcall_data *data, char *line, size_t size)
{
char uid_str[size];
char nid_str[size];
char perm_str[size];
lnet_nid_t nid;
__u32 perm, noperm;
int rc, i;
if (data->idd_nperms >= N_PERMS_MAX) {
errlog("permission count %d > max %d\n",
data->idd_nperms, N_PERMS_MAX);
return -1;
}
rc = sscanf(line, "%s %s %s", nid_str, uid_str, perm_str);
if (rc != 3) {
errlog("can't parse line %s\n", line);
return -1;
}
if (!match_uid(data->idd_uid, uid_str))
return 0;
if (!strcmp(nid_str, "*")) {
nid = LNET_NID_ANY;
} else {
nid = libcfs_str2nid(nid_str);
if (nid == LNET_NID_ANY) {
errlog("can't parse nid %s\n", nid_str);
return -1;
}
}
if (parse_perm(&perm, &noperm, perm_str)) {
errlog("invalid perm %s\n", perm_str);
return -1;
}
/* merge the perms with the same nid.
*
* If there is LNET_NID_ANY in data->idd_perms[i].pdd_nid,
* it must be data->idd_perms[0].pdd_nid, and act as default perm.
*/
if (nid != LNET_NID_ANY) {
int found = 0;
/* search for the same nid */
for (i = data->idd_nperms - 1; i >= 0; i--) {
if (data->idd_perms[i].pdd_nid == nid) {
data->idd_perms[i].pdd_perm =
(data->idd_perms[i].pdd_perm | perm) &
~noperm;
found = 1;
break;
}
}
/* NOT found, add to tail */
if (!found) {
data->idd_perms[data->idd_nperms].pdd_nid = nid;
data->idd_perms[data->idd_nperms].pdd_perm =
perm & ~noperm;
data->idd_nperms++;
}
} else {
if (data->idd_nperms > 0) {
/* the first one isn't LNET_NID_ANY, need exchange */
if (data->idd_perms[0].pdd_nid != LNET_NID_ANY) {
data->idd_perms[data->idd_nperms].pdd_nid =
data->idd_perms[0].pdd_nid;
data->idd_perms[data->idd_nperms].pdd_perm =
data->idd_perms[0].pdd_perm;
data->idd_perms[0].pdd_nid = LNET_NID_ANY;
data->idd_perms[0].pdd_perm = perm & ~noperm;
data->idd_nperms++;
} else {
/* only fix LNET_NID_ANY item */
data->idd_perms[0].pdd_perm =
(data->idd_perms[0].pdd_perm | perm) &
~noperm;
}
} else {
/* it is the first one, only add to head */
data->idd_perms[0].pdd_nid = LNET_NID_ANY;
data->idd_perms[0].pdd_perm = perm & ~noperm;
data->idd_nperms = 1;
}
}
return 0;
}
int liblustre_process_log(struct config_llog_instance *cfg,
char *mgsnid, char *profile,
int allow_recov)
{
struct lustre_cfg_bufs bufs;
struct lustre_cfg *lcfg;
char *peer = "MGS_UUID";
struct obd_device *obd;
struct obd_export *exp;
char *name = "mgc_dev";
class_uuid_t uuid;
struct obd_uuid mgc_uuid;
struct llog_ctxt *ctxt;
lnet_nid_t nid = 0;
char *mdsnid;
int err, rc = 0;
struct obd_connect_data *ocd = NULL;
ENTRY;
ll_generate_random_uuid(uuid);
class_uuid_unparse(uuid, &mgc_uuid);
nid = libcfs_str2nid(mgsnid);
if (nid == LNET_NID_ANY) {
CERROR("Can't parse NID %s\n", mgsnid);
RETURN(-EINVAL);
}
lustre_cfg_bufs_reset(&bufs, NULL);
lustre_cfg_bufs_set_string(&bufs, 1, peer);
lcfg = lustre_cfg_new(LCFG_ADD_UUID, &bufs);
lcfg->lcfg_nid = nid;
rc = class_process_config(lcfg);
lustre_cfg_free(lcfg);
if (rc < 0)
GOTO(out, rc);
lustre_cfg_bufs_reset(&bufs, name);
lustre_cfg_bufs_set_string(&bufs, 1, LUSTRE_MGC_NAME);
lustre_cfg_bufs_set_string(&bufs, 2, mgc_uuid.uuid);
lcfg = lustre_cfg_new(LCFG_ATTACH, &bufs);
rc = class_process_config(lcfg);
lustre_cfg_free(lcfg);
if (rc < 0)
GOTO(out_del_uuid, rc);
lustre_cfg_bufs_reset(&bufs, name);
lustre_cfg_bufs_set_string(&bufs, 1, LUSTRE_MGS_OBDNAME);
lustre_cfg_bufs_set_string(&bufs, 2, peer);
lcfg = lustre_cfg_new(LCFG_SETUP, &bufs);
rc = class_process_config(lcfg);
lustre_cfg_free(lcfg);
if (rc < 0)
GOTO(out_detach, rc);
while ((mdsnid = strsep(&mgsnid, ","))) {
nid = libcfs_str2nid(mdsnid);
lustre_cfg_bufs_reset(&bufs, NULL);
lustre_cfg_bufs_set_string(&bufs, 1, libcfs_nid2str(nid));
lcfg = lustre_cfg_new(LCFG_ADD_UUID, &bufs);
lcfg->lcfg_nid = nid;
rc = class_process_config(lcfg);
lustre_cfg_free(lcfg);
if (rc) {
CERROR("Add uuid for %s failed %d\n",
libcfs_nid2str(nid), rc);
continue;
}
lustre_cfg_bufs_reset(&bufs, name);
lustre_cfg_bufs_set_string(&bufs, 1, libcfs_nid2str(nid));
lcfg = lustre_cfg_new(LCFG_ADD_CONN, &bufs);
lcfg->lcfg_nid = nid;
rc = class_process_config(lcfg);
lustre_cfg_free(lcfg);
if (rc) {
CERROR("Add conn for %s failed %d\n",
libcfs_nid2str(nid), rc);
continue;
}
}
obd = class_name2obd(name);
if (obd == NULL)
GOTO(out_cleanup, rc = -EINVAL);
OBD_ALLOC(ocd, sizeof(*ocd));
if (ocd == NULL)
GOTO(out_cleanup, rc = -ENOMEM);
ocd->ocd_connect_flags = OBD_CONNECT_VERSION | OBD_CONNECT_AT |
OBD_CONNECT_FULL20;
ocd->ocd_version = LUSTRE_VERSION_CODE;
rc = obd_connect(NULL, &exp, obd, &mgc_uuid, ocd, NULL);
if (rc) {
CERROR("cannot connect to %s at %s: rc = %d\n",
LUSTRE_MGS_OBDNAME, mgsnid, rc);
GOTO(out_cleanup, rc);
}
ctxt = llog_get_context(exp->exp_obd, LLOG_CONFIG_REPL_CTXT);
cfg->cfg_flags |= CFG_F_COMPAT146;
rc = class_config_parse_llog(NULL, ctxt, profile, cfg);
llog_ctxt_put(ctxt);
if (rc) {
CERROR("class_config_parse_llog failed: rc = %d\n", rc);
}
/* We don't so much care about errors in cleaning up the config llog
* connection, as we have already read the config by this point. */
err = obd_disconnect(exp);
if (err)
CERROR("obd_disconnect failed: rc = %d\n", err);
out_cleanup:
if (ocd)
OBD_FREE(ocd, sizeof(*ocd));
lustre_cfg_bufs_reset(&bufs, name);
lcfg = lustre_cfg_new(LCFG_CLEANUP, &bufs);
err = class_process_config(lcfg);
lustre_cfg_free(lcfg);
if (err)
CERROR("md_cleanup failed: rc = %d\n", err);
out_detach:
lustre_cfg_bufs_reset(&bufs, name);
lcfg = lustre_cfg_new(LCFG_DETACH, &bufs);
err = class_process_config(lcfg);
lustre_cfg_free(lcfg);
if (err)
CERROR("md_detach failed: rc = %d\n", err);
out_del_uuid:
lustre_cfg_bufs_reset(&bufs, name);
lustre_cfg_bufs_set_string(&bufs, 1, peer);
lcfg = lustre_cfg_new(LCFG_DEL_UUID, &bufs);
err = class_process_config(lcfg);
if (err)
CERROR("del MDC UUID failed: rc = %d\n", err);
lustre_cfg_free(lcfg);
out:
RETURN(rc);
}
static int connect_echo_client(void)
{
struct lustre_cfg *lcfg;
struct lustre_cfg_bufs bufs;
lnet_nid_t nid;
char *peer = "ECHO_PEER_NID";
class_uuid_t osc_uuid, echo_uuid;
struct obd_uuid osc_uuid_str, echo_uuid_str;
int err;
ENTRY;
ll_generate_random_uuid(osc_uuid);
class_uuid_unparse(osc_uuid, &osc_uuid_str);
ll_generate_random_uuid(echo_uuid);
class_uuid_unparse(echo_uuid, &echo_uuid_str);
nid = libcfs_str2nid(echo_server_nid);
if (nid == LNET_NID_ANY) {
CERROR("Can't parse NID %s\n", echo_server_nid);
RETURN(-EINVAL);
}
/* add uuid */
lustre_cfg_bufs_reset(&bufs, NULL);
lustre_cfg_bufs_set_string(&bufs, 1, peer);
lcfg = lustre_cfg_new(LCFG_ADD_UUID, &bufs);
lcfg->lcfg_nid = nid;
err = class_process_config(lcfg);
lustre_cfg_free(lcfg);
if (err < 0) {
CERROR("failed add_uuid\n");
RETURN(-EINVAL);
}
/* attach osc */
lustre_cfg_bufs_reset(&bufs, osc_dev_name);
lustre_cfg_bufs_set_string(&bufs, 1, LUSTRE_OSC_NAME);
lustre_cfg_bufs_set_string(&bufs, 2, osc_uuid_str.uuid);
lcfg = lustre_cfg_new(LCFG_ATTACH, &bufs);
err = class_process_config(lcfg);
lustre_cfg_free(lcfg);
if (err < 0) {
CERROR("failed attach osc\n");
RETURN(-EINVAL);
}
/* setup osc */
lustre_cfg_bufs_reset(&bufs, osc_dev_name);
lustre_cfg_bufs_set_string(&bufs, 1, echo_server_ostname);
lustre_cfg_bufs_set_string(&bufs, 2, peer);
lcfg = lustre_cfg_new(LCFG_SETUP, &bufs);
err = class_process_config(lcfg);
lustre_cfg_free(lcfg);
if (err < 0) {
CERROR("failed setup osc\n");
RETURN(-EINVAL);
}
/* attach echo_client */
lustre_cfg_bufs_reset(&bufs, echo_dev_name);
lustre_cfg_bufs_set_string(&bufs, 1, "echo_client");
lustre_cfg_bufs_set_string(&bufs, 2, echo_uuid_str.uuid);
lcfg = lustre_cfg_new(LCFG_ATTACH, &bufs);
err = class_process_config(lcfg);
lustre_cfg_free(lcfg);
if (err < 0) {
CERROR("failed attach echo_client\n");
RETURN(-EINVAL);
}
/* setup echo_client */
lustre_cfg_bufs_reset(&bufs, echo_dev_name);
lustre_cfg_bufs_set_string(&bufs, 1, osc_dev_name);
lustre_cfg_bufs_set_string(&bufs, 2, NULL);
lcfg = lustre_cfg_new(LCFG_SETUP, &bufs);
err = class_process_config(lcfg);
lustre_cfg_free(lcfg);
if (err < 0) {
CERROR("failed setup echo_client\n");
RETURN(-EINVAL);
}
RETURN(0);
}
/**
* Turns a lctl parameter string into a procfs/sysfs subdirectory path pattern.
*
* \param[in] popt Used to control parameter usage. For this
* function it is used to see if the path has
* a added suffix.
* \param[in,out] path lctl parameter string that is turned into
* the subdirectory path pattern that is used
* to search the procfs/sysfs tree.
*
* \retval -errno on error.
*/
static int
clean_path(struct param_opts *popt, char *path)
{
char *nidstr = NULL;
char *tmp;
if (popt == NULL || path == NULL || strlen(path) == 0)
return -EINVAL;
/* If path contains a suffix we need to remove it */
if (popt->po_show_type) {
size_t path_end = strlen(path) - 1;
tmp = path + path_end;
switch (*tmp) {
case '@':
case '=':
case '/':
*tmp = '\0';
default:
break;
}
}
/* get rid of '\', glob doesn't like it */
tmp = strrchr(path, '\\');
if (tmp != NULL) {
char *tail = path + strlen(path);
while (tmp != path) {
if (*tmp == '\\') {
memmove(tmp, tmp + 1, tail - tmp);
--tail;
}
--tmp;
}
}
/* Does this path contain a NID string ? */
tmp = strchr(path, '@');
if (tmp != NULL) {
char *find_nid = strdup(path);
lnet_nid_t nid;
if (find_nid == NULL)
return -ENOMEM;
/* First we need to chop off rest after nid string.
* Since find_nid is a clone of path it better have
* '@' */
tmp = strchr(find_nid, '@');
tmp = strchr(tmp, '.');
if (tmp != NULL)
*tmp = '\0';
/* Now chop off the front. */
for (tmp = strchr(find_nid, '.'); tmp != NULL;
tmp = strchr(tmp, '.')) {
/* Remove MGC to make it NID format */
if (!strncmp(++tmp, "MGC", 3))
tmp += 3;
nid = libcfs_str2nid(tmp);
if (nid != LNET_NID_ANY) {
nidstr = libcfs_nid2str(nid);
if (nidstr == NULL)
return -EINVAL;
break;
}
}
free(find_nid);
}
/* replace param '.' with '/' */
for (tmp = strchr(path, '.'); tmp != NULL; tmp = strchr(tmp, '.')) {
*tmp++ = '/';
/* Remove MGC to make it NID format */
if (!strncmp(tmp, "MGC", 3))
tmp += 3;
/* There exist cases where some of the subdirectories of the
* the parameter tree has embedded in its name a NID string.
* This means that it is possible that these subdirectories
* could have actual '.' in its name. If this is the case we
* don't want to blindly replace the '.' with '/'. */
if (nidstr != NULL) {
char *match = strstr(tmp, nidstr);
if (tmp == match)
tmp += strlen(nidstr);
}
}
return 0;
}