int lustre_lnet_enable_routing(int enable, int seq_no, struct cYAML **err_rc)
{
struct lnet_ioctl_config_data data;
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN];
snprintf(err_str, sizeof(err_str), "\"success\"");
LIBCFS_IOC_INIT_V2(data, cfg_hdr);
data.cfg_config_u.cfg_buffers.buf_enable = (enable) ? 1 : 0;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_CONFIG_RTR, &data);
if (rc != 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot %s routing %s\"",
(enable) ? "enable" : "disable", strerror(errno));
goto out;
}
out:
cYAML_build_error(rc, seq_no,
(enable) ? ADD_CMD : DEL_CMD,
"routing", err_str, err_rc);
return rc;
}
/* We can't use the libptlctl library fns because they are not shared-memory
safe with respect to the ioctl device (cur_dev) */
static int obj_ioctl(int cmd, struct obd_ioctl_data *data, int unpack)
{
char *buf = NULL;
int rc;
//IOC_PACK(cmdname, data);
if (obd_ioctl_pack(data, &buf, sizeof(*data))) {
fprintf(stderr, "dev %d invalid ioctl\n", data->ioc_dev);
rc = EINVAL;
goto out;
}
rc = l_ioctl(OBD_DEV_ID, cmd, buf);
if (unpack) {
//IOC_UNPACK(argv[0], data);
if (obd_ioctl_unpack(data, buf, sizeof(*data))) {
fprintf(stderr, "dev %d invalid reply\n", data->ioc_dev);
rc = EINVAL;
goto out;
}
}
out:
if (buf)
free(buf);
return rc;
}
int lustre_lnet_config_ni_system(bool up, bool load_ni_from_mod,
int seq_no, struct cYAML **err_rc)
{
struct libcfs_ioctl_data data;
unsigned int opc;
int rc;
char err_str[LNET_MAX_STR_LEN];
snprintf(err_str, sizeof(err_str), "\"Success\"");
LIBCFS_IOC_INIT(data);
/* Reverse logic is used here in order not to change
* the lctl utility */
data.ioc_flags = load_ni_from_mod ? 0 : 1;
opc = up ? IOC_LIBCFS_CONFIGURE : IOC_LIBCFS_UNCONFIGURE;
rc = l_ioctl(LNET_DEV_ID, opc, &data);
if (rc != 0) {
snprintf(err_str,
sizeof(err_str),
"\"LNet %s error: %s\"", (up) ? "configure" :
"unconfigure", strerror(errno));
rc = -errno;
}
cYAML_build_error(rc, seq_no, (up) ? CONFIG_CMD : UNCONFIG_CMD,
"lnet", err_str, err_rc);
return rc;
}
int jt_lfsck_stop(int argc, char **argv)
{
struct obd_ioctl_data data;
char rawbuf[MAX_IOC_BUFLEN], *buf = rawbuf;
char device[MAX_OBD_NAME];
char *optstring = "M:h";
int opt, index, rc;
memset(&data, 0, sizeof(data));
memset(device, 0, MAX_OBD_NAME);
/* Reset the 'optind' for the case of getopt_long() called multiple
* times under the same lctl. */
optind = 0;
while ((opt = getopt_long(argc, argv, optstring, long_opt_stop,
&index)) != EOF) {
switch (opt) {
case 'M':
rc = lfsck_pack_dev(&data, device, optarg);
if (rc != 0)
return rc;
break;
case 'h':
usage_stop();
return 0;
default:
fprintf(stderr, "Invalid option, '-h' for help.\n");
return -EINVAL;
}
}
if (data.ioc_inlbuf4 == NULL) {
if (lcfg_get_devname() != NULL) {
rc = lfsck_pack_dev(&data, device, lcfg_get_devname());
if (rc != 0)
return rc;
} else {
fprintf(stderr,
"Must specify device to stop LFSCK.\n");
return -EINVAL;
}
}
memset(buf, 0, sizeof(rawbuf));
rc = obd_ioctl_pack(&data, &buf, sizeof(rawbuf));
if (rc) {
fprintf(stderr, "Fail to pack ioctl data: rc = %d.\n", rc);
return rc;
}
rc = l_ioctl(OBD_DEV_ID, OBD_IOC_STOP_LFSCK, buf);
if (rc < 0) {
perror("Fail to stop LFSCK");
return rc;
}
printf("Stopped LFSCK on the device %s.\n", device);
return 0;
}
int jt_dbg_mark_debug_buf(int argc, char **argv)
{
static char scratch[MAX_MARK_SIZE] = "";
struct libcfs_ioctl_data data;
char *text;
int rc;
memset(&data, 0, sizeof(data));
if (argc > 1) {
int count, max_size = sizeof(scratch) - 1;
strncpy(scratch, argv[1], max_size);
max_size -= strlen(argv[1]);
for (count = 2; (count < argc) && (max_size > 1); count++) {
strncat(scratch, " ", max_size);
max_size -= 1;
strncat(scratch, argv[count], max_size);
max_size -= strlen(argv[count]);
}
scratch[sizeof(scratch) - 1] = '\0';
text = scratch;
} else {
time_t now = time(NULL);
text = ctime(&now);
}
data.ioc_inllen1 = strlen(text) + 1;
data.ioc_inlbuf1 = text;
if (libcfs_ioctl_pack(&data, &buf, max) != 0) {
fprintf(stderr, "libcfs_ioctl_pack failed.\n");
return -1;
}
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_MARK_DEBUG, buf);
if (rc) {
fprintf(stderr, "IOC_LIBCFS_MARK_DEBUG failed: %s\n",
strerror(errno));
return -1;
}
return 0;
}
int lustre_lnet_del_net(char *nw, int seq_no, struct cYAML **err_rc)
{
struct lnet_ioctl_config_data data;
__u32 net = LNET_NIDNET(LNET_NID_ANY);
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN];
snprintf(err_str, sizeof(err_str), "\"success\"");
if (nw == NULL) {
snprintf(err_str,
sizeof(err_str),
"\"missing mandatory parameter\"");
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;
}
LIBCFS_IOC_INIT_V2(data, cfg_hdr);
data.cfg_net = net;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_DEL_NET, &data);
if (rc != 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot delete network: %s\"", strerror(errno));
goto out;
}
out:
cYAML_build_error(rc, seq_no, DEL_CMD, "net", err_str, err_rc);
return rc;
}
int lustre_lnet_config_buffers(int tiny, int small, int large, int seq_no,
struct cYAML **err_rc)
{
struct lnet_ioctl_config_data data;
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN];
snprintf(err_str, sizeof(err_str), "\"success\"");
/* -1 indicates to ignore changes to this field */
if (tiny < -1 || small < -1 || large < -1) {
snprintf(err_str,
sizeof(err_str),
"\"tiny, small and large must be >= 0\"");
rc = LUSTRE_CFG_RC_OUT_OF_RANGE_PARAM;
goto out;
}
LIBCFS_IOC_INIT_V2(data, cfg_hdr);
data.cfg_config_u.cfg_buffers.buf_tiny = tiny;
data.cfg_config_u.cfg_buffers.buf_small = small;
data.cfg_config_u.cfg_buffers.buf_large = large;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_ADD_BUF, &data);
if (rc != 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot configure buffers: %s\"", strerror(errno));
goto out;
}
out:
cYAML_build_error(rc, seq_no, ADD_CMD, "buf", err_str, err_rc);
return rc;
}
int jt_dbg_panic(int argc, char **argv)
{
int rc;
struct libcfs_ioctl_data data;
if (argc != 1) {
fprintf(stderr, "usage: %s\n", argv[0]);
return 0;
}
memset(&data, 0, sizeof(data));
if (libcfs_ioctl_pack(&data, &buf, max) != 0) {
fprintf(stderr, "libcfs_ioctl_pack failed.\n");
return -1;
}
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_PANIC, buf);
if (rc) {
fprintf(stderr, "IOC_LIBCFS_PANIC failed: %s\n",
strerror(errno));
return -1;
}
return 0;
}
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_routing(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct lnet_ioctl_config_data *data;
struct lnet_ioctl_pool_cfg *pool_cfg = NULL;
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
int l_errno = 0;
char *buf;
char *pools[LNET_NRBPOOLS] = {"tiny", "small", "large"};
int buf_count[LNET_NRBPOOLS] = {0};
struct cYAML *root = NULL, *pools_node = NULL,
*type_node = NULL, *item = NULL, *cpt = NULL,
*first_seq = NULL, *buffers = NULL;
int i, j;
char err_str[LNET_MAX_STR_LEN];
char node_name[LNET_MAX_STR_LEN];
bool exist = false;
snprintf(err_str, sizeof(err_str), "\"out of memory\"");
buf = calloc(1, sizeof(*data) + sizeof(*pool_cfg));
if (buf == NULL)
goto out;
data = (struct lnet_ioctl_config_data *)buf;
root = cYAML_create_object(NULL, NULL);
if (root == NULL)
goto out;
pools_node = cYAML_create_seq(root, "routing");
if (pools_node == NULL)
goto out;
for (i = 0;; i++) {
LIBCFS_IOC_INIT_V2(*data, cfg_hdr);
data->cfg_hdr.ioc_len = sizeof(struct lnet_ioctl_config_data) +
sizeof(struct lnet_ioctl_pool_cfg);
data->cfg_count = i;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_BUF, data);
if (rc != 0) {
l_errno = errno;
break;
}
exist = true;
pool_cfg = (struct lnet_ioctl_pool_cfg *)data->cfg_bulk;
snprintf(node_name, sizeof(node_name), "cpt[%d]", i);
item = cYAML_create_seq_item(pools_node);
if (item == NULL)
goto out;
if (first_seq == NULL)
first_seq = item;
cpt = cYAML_create_object(item, node_name);
if (cpt == NULL)
goto out;
/* create the tree and print */
for (j = 0; j < LNET_NRBPOOLS; j++) {
type_node = cYAML_create_object(cpt, pools[j]);
if (type_node == NULL)
goto out;
if (cYAML_create_number(type_node, "npages",
pool_cfg->pl_pools[j].pl_npages)
== NULL)
goto out;
if (cYAML_create_number(type_node, "nbuffers",
pool_cfg->pl_pools[j].
pl_nbuffers) == NULL)
goto out;
if (cYAML_create_number(type_node, "credits",
pool_cfg->pl_pools[j].
pl_credits) == NULL)
goto out;
if (cYAML_create_number(type_node, "mincredits",
pool_cfg->pl_pools[j].
pl_mincredits) == NULL)
goto out;
/* keep track of the total count for each of the
* tiny, small and large buffers */
buf_count[j] += pool_cfg->pl_pools[j].pl_nbuffers;
}
}
if (pool_cfg != NULL) {
item = cYAML_create_seq_item(pools_node);
if (item == NULL)
goto out;
if (cYAML_create_number(item, "enable", pool_cfg->pl_routing) ==
NULL)
goto out;
}
/* create a buffers entry in the show. This is necessary so that
* if the YAML output is used to configure a node, the buffer
* configuration takes hold */
buffers = cYAML_create_object(root, "buffers");
if (buffers == NULL)
goto out;
for (i = 0; i < LNET_NRBPOOLS; i++) {
if (cYAML_create_number(buffers, pools[i], buf_count[i]) == NULL)
goto out;
}
if (show_rc == NULL)
cYAML_print_tree(root);
if (l_errno != ENOENT) {
snprintf(err_str,
sizeof(err_str),
"\"cannot get routing information: %s\"",
strerror(l_errno));
rc = -l_errno;
goto out;
} else
rc = LUSTRE_CFG_RC_NO_ERR;
snprintf(err_str, sizeof(err_str), "\"success\"");
rc = LUSTRE_CFG_RC_NO_ERR;
out:
free(buf);
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 *routing_node;
/* there should exist only one routing block and one
* buffers block. If there already exists a previous one
* then don't add another */
routing_node = cYAML_get_object_item(*show_rc, "routing");
if (routing_node == NULL) {
cYAML_insert_sibling((*show_rc)->cy_child,
root->cy_child);
free(root);
} else {
cYAML_free_tree(root);
}
} else {
*show_rc = root;
}
cYAML_build_error(rc, seq_no, SHOW_CMD, "routing", err_str, err_rc);
return rc;
}
int jt_lfsck_start(int argc, char **argv)
{
struct obd_ioctl_data data;
char rawbuf[MAX_IOC_BUFLEN], *buf = rawbuf;
char device[MAX_OBD_NAME];
struct lfsck_start start;
char *optstring = "Ac::C::e:hM:n::ors:t:w:";
int opt, index, rc, val, i;
memset(&data, 0, sizeof(data));
memset(&start, 0, sizeof(start));
memset(device, 0, MAX_OBD_NAME);
start.ls_version = LFSCK_VERSION_V1;
start.ls_active = LFSCK_TYPES_ALL;
/* Reset the 'optind' for the case of getopt_long() called multiple
* times under the same lctl. */
optind = 0;
while ((opt = getopt_long(argc, argv, optstring, long_opt_start,
&index)) != EOF) {
switch (opt) {
case 'A':
start.ls_flags |= LPF_ALL_TGT | LPF_BROADCAST;
break;
case 'c':
if (optarg == NULL || strcmp(optarg, "on") == 0) {
start.ls_flags |= LPF_CREATE_OSTOBJ;
} else if (strcmp(optarg, "off") != 0) {
fprintf(stderr, "invalid switch: -c '%s'. "
"valid switches are:\n"
"empty ('on'), or 'off' without space. "
"For example:\n"
"'-c', '-con', '-coff'\n", optarg);
return -EINVAL;
}
start.ls_valid |= LSV_CREATE_OSTOBJ;
break;
case 'C':
if (optarg == NULL || strcmp(optarg, "on") == 0) {
start.ls_flags |= LPF_CREATE_MDTOBJ;
} else if (strcmp(optarg, "off") != 0) {
fprintf(stderr, "invalid switch: -C '%s'. "
"valid switches are:\n"
"empty ('on'), or 'off' without space. "
"For example:\n"
"'-C', '-Con', '-Coff'\n", optarg);
return -EINVAL;
}
start.ls_valid |= LSV_CREATE_MDTOBJ;
break;
case 'e':
if (strcmp(optarg, "abort") == 0) {
start.ls_flags |= LPF_FAILOUT;
} else if (strcmp(optarg, "continue") != 0) {
fprintf(stderr, "invalid error mode: -e '%s'."
"valid modes are: "
"'continue' or 'abort'.\n", optarg);
return -EINVAL;
}
start.ls_valid |= LSV_ERROR_HANDLE;
break;
case 'h':
usage_start();
return 0;
case 'M':
rc = lfsck_pack_dev(&data, device, optarg);
if (rc != 0)
return rc;
break;
case 'n':
if (optarg == NULL || strcmp(optarg, "on") == 0) {
start.ls_flags |= LPF_DRYRUN;
} else if (strcmp(optarg, "off") != 0) {
fprintf(stderr, "invalid switch: -n '%s'. "
"valid switches are:\n"
"empty ('on'), or 'off' without space. "
"For example:\n"
"'-n', '-non', '-noff'\n", optarg);
return -EINVAL;
}
start.ls_valid |= LSV_DRYRUN;
break;
case 'o':
start.ls_flags |= LPF_ALL_TGT | LPF_BROADCAST |
LPF_OST_ORPHAN;
break;
case 'r':
start.ls_flags |= LPF_RESET;
break;
case 's':
val = atoi(optarg);
start.ls_speed_limit = val;
start.ls_valid |= LSV_SPEED_LIMIT;
break;
case 't': {
char *typename;
if (start.ls_active == LFSCK_TYPES_ALL)
start.ls_active = 0;
while ((typename = strsep(&optarg, ",")) != NULL) {
enum lfsck_type type;
type = lfsck_name2type(typename);
if (type == -1)
goto bad_type;
start.ls_active |= type;
}
break;
bad_type:
fprintf(stderr, "invalid check type -t '%s'. "
"valid types are:\n", typename);
for (i = 0; lfsck_types_names[i].ltn_name != NULL; i++)
fprintf(stderr, "%s%s", i != 0 ? "," : "",
lfsck_types_names[i].ltn_name);
fprintf(stderr, "\n");
return -EINVAL;
}
case 'w':
val = atoi(optarg);
if (val < 1 || val > LFSCK_ASYNC_WIN_MAX) {
fprintf(stderr,
"Invalid async window size that "
"may cause memory issues. The valid "
"range is [1 - %u].\n",
LFSCK_ASYNC_WIN_MAX);
return -EINVAL;
}
start.ls_async_windows = val;
start.ls_valid |= LSV_ASYNC_WINDOWS;
break;
default:
fprintf(stderr, "Invalid option, '-h' for help.\n");
return -EINVAL;
}
}
if (start.ls_active == LFSCK_TYPES_ALL)
start.ls_active = LFSCK_TYPES_DEF;
if (data.ioc_inlbuf4 == NULL) {
if (lcfg_get_devname() != NULL) {
rc = lfsck_pack_dev(&data, device, lcfg_get_devname());
if (rc != 0)
return rc;
} else {
fprintf(stderr,
"Must specify device to start LFSCK.\n");
return -EINVAL;
}
}
data.ioc_inlbuf1 = (char *)&start;
data.ioc_inllen1 = sizeof(start);
memset(buf, 0, sizeof(rawbuf));
rc = obd_ioctl_pack(&data, &buf, sizeof(rawbuf));
if (rc) {
fprintf(stderr, "Fail to pack ioctl data: rc = %d.\n", rc);
return rc;
}
rc = l_ioctl(OBD_DEV_ID, OBD_IOC_START_LFSCK, buf);
if (rc < 0) {
perror("Fail to start LFSCK");
return rc;
}
obd_ioctl_unpack(&data, buf, sizeof(rawbuf));
printf("Started LFSCK on the device %s: scrub", device);
for (i = 0; lfsck_types_names[i].ltn_name != NULL; i++) {
if (start.ls_active & lfsck_types_names[i].ltn_type) {
printf(" %s", lfsck_types_names[i].ltn_name);
start.ls_active &= ~lfsck_types_names[i].ltn_type;
}
}
if (start.ls_active != 0)
printf(" unknown(0x%x)", start.ls_active);
printf("\n");
return 0;
}
int lustre_lnet_config_net(char *net, char *intf, char *ip2net,
int peer_to, int peer_cr, int peer_buf_cr,
int credits, char *smp, int seq_no,
struct lnet_ioctl_config_lnd_tunables *lnd_tunables,
struct cYAML **err_rc)
{
struct lnet_ioctl_config_lnd_tunables *lnd = NULL;
struct lnet_ioctl_config_data *data;
size_t ioctl_size = sizeof(*data);
char buf[LNET_MAX_STR_LEN];
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN];
snprintf(err_str, sizeof(err_str), "\"success\"");
/* No need to register lo */
if (net != NULL && !strcmp(net, "lo"))
return 0;
if (ip2net == NULL && (intf == NULL || net == NULL)) {
snprintf(err_str,
sizeof(err_str),
"\"mandatory parameter '%s' not specified."
" Optionally specify ip2net parameter\"",
(intf == NULL && net == NULL) ? "net, if" :
(intf == NULL) ? "if" : "net");
rc = LUSTRE_CFG_RC_MISSING_PARAM;
goto out;
}
if (peer_to != -1 && peer_to <= 0) {
snprintf(err_str,
sizeof(err_str),
"\"peer timeout %d, must be greater than 0\"",
peer_to);
rc = LUSTRE_CFG_RC_OUT_OF_RANGE_PARAM;
goto out;
}
if (ip2net != NULL && strlen(ip2net) >= sizeof(buf)) {
snprintf(err_str,
sizeof(err_str),
"\"ip2net string too long %d\"",
(int)strlen(ip2net));
rc = LUSTRE_CFG_RC_OUT_OF_RANGE_PARAM;
goto out;
}
if (lnd_tunables != NULL)
ioctl_size += sizeof(*lnd_tunables);
data = calloc(1, ioctl_size);
if (data == NULL)
goto out;
if (ip2net == NULL)
snprintf(buf, sizeof(buf) - 1, "%s(%s)%s",
net, intf,
(smp) ? smp : "");
LIBCFS_IOC_INIT_V2(*data, cfg_hdr);
strncpy(data->cfg_config_u.cfg_net.net_intf,
(ip2net != NULL) ? ip2net : buf, sizeof(buf));
data->cfg_config_u.cfg_net.net_peer_timeout = peer_to;
data->cfg_config_u.cfg_net.net_peer_tx_credits = peer_cr;
data->cfg_config_u.cfg_net.net_peer_rtr_credits = peer_buf_cr;
data->cfg_config_u.cfg_net.net_max_tx_credits = credits;
/* Add in tunable settings if available */
if (lnd_tunables != NULL) {
lnd = (struct lnet_ioctl_config_lnd_tunables *)data->cfg_bulk;
data->cfg_hdr.ioc_len = ioctl_size;
memcpy(lnd, lnd_tunables, sizeof(*lnd_tunables));
}
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_ADD_NET, data);
if (rc < 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot add network: %s\"", strerror(errno));
}
free(data);
out:
cYAML_build_error(rc, seq_no, ADD_CMD, "net", 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;
}
int lustre_lnet_show_stats(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct lnet_ioctl_lnet_stats data;
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
int l_errno;
char err_str[LNET_MAX_STR_LEN];
struct cYAML *root = NULL, *stats = NULL;
snprintf(err_str, sizeof(err_str), "\"out of memory\"");
LIBCFS_IOC_INIT_V2(data, st_hdr);
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_LNET_STATS, &data);
if (rc != 0) {
l_errno = errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot get lnet statistics: %s\"",
strerror(l_errno));
rc = -l_errno;
goto out;
}
root = cYAML_create_object(NULL, NULL);
if (root == NULL)
goto out;
stats = cYAML_create_object(root, "statistics");
if (stats == NULL)
goto out;
if (cYAML_create_number(stats, "msgs_alloc",
data.st_cntrs.msgs_alloc) == NULL)
goto out;
if (cYAML_create_number(stats, "msgs_max",
data.st_cntrs.msgs_max) == NULL)
goto out;
if (cYAML_create_number(stats, "errors",
data.st_cntrs.errors) == NULL)
goto out;
if (cYAML_create_number(stats, "send_count",
data.st_cntrs.send_count) == NULL)
goto out;
if (cYAML_create_number(stats, "recv_count",
data.st_cntrs.recv_count) == NULL)
goto out;
if (cYAML_create_number(stats, "route_count",
data.st_cntrs.route_count) == NULL)
goto out;
if (cYAML_create_number(stats, "drop_count",
data.st_cntrs.drop_count) == NULL)
goto out;
if (cYAML_create_number(stats, "send_length",
data.st_cntrs.send_length) == NULL)
goto out;
if (cYAML_create_number(stats, "recv_length",
data.st_cntrs.recv_length) == NULL)
goto out;
if (cYAML_create_number(stats, "route_length",
data.st_cntrs.route_length) == NULL)
goto out;
if (cYAML_create_number(stats, "drop_length",
data.st_cntrs.drop_length) == NULL)
goto out;
if (show_rc == NULL)
cYAML_print_tree(root);
snprintf(err_str, sizeof(err_str), "\"success\"");
out:
if (show_rc == NULL || rc != LUSTRE_CFG_RC_NO_ERR) {
cYAML_free_tree(root);
} else if (show_rc != NULL && *show_rc != NULL) {
cYAML_insert_sibling((*show_rc)->cy_child,
root->cy_child);
free(root);
} else {
*show_rc = root;
}
cYAML_build_error(rc, seq_no, SHOW_CMD, "statistics", err_str, err_rc);
return rc;
}
int lustre_lnet_show_peer_credits(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct lnet_ioctl_peer peer_info;
int rc = LUSTRE_CFG_RC_OUT_OF_MEM, ncpt = 0, i = 0, j = 0;
int l_errno = 0;
struct cYAML *root = NULL, *peer = NULL, *first_seq = NULL,
*peer_root = NULL;
char err_str[LNET_MAX_STR_LEN];
bool ncpt_set = false;
snprintf(err_str, sizeof(err_str),
"\"out of memory\"");
/* create struct cYAML root object */
root = cYAML_create_object(NULL, NULL);
if (root == NULL)
goto out;
peer_root = cYAML_create_seq(root, "peer");
if (peer_root == NULL)
goto out;
do {
for (i = 0;; i++) {
LIBCFS_IOC_INIT_V2(peer_info, pr_hdr);
peer_info.pr_count = i;
peer_info.pr_lnd_u.pr_peer_credits.cr_ncpt = j;
rc = l_ioctl(LNET_DEV_ID,
IOC_LIBCFS_GET_PEER_INFO, &peer_info);
if (rc != 0) {
l_errno = errno;
break;
}
if (ncpt_set != 0) {
ncpt = peer_info.pr_lnd_u.pr_peer_credits.
cr_ncpt;
ncpt_set = true;
}
peer = cYAML_create_seq_item(peer_root);
if (peer == NULL)
goto out;
if (first_seq == NULL)
first_seq = peer;
if (cYAML_create_string(peer, "nid",
libcfs_nid2str
(peer_info.pr_nid)) == NULL)
goto out;
if (cYAML_create_string(peer, "state",
peer_info.pr_lnd_u.
pr_peer_credits.
cr_aliveness) ==
NULL)
goto out;
if (cYAML_create_number(peer, "refcount",
peer_info.pr_lnd_u.
pr_peer_credits.
cr_refcount) == NULL)
goto out;
if (cYAML_create_number(peer, "max_ni_tx_credits",
peer_info.pr_lnd_u.
pr_peer_credits.
cr_ni_peer_tx_credits)
== NULL)
goto out;
if (cYAML_create_number(peer, "available_tx_credits",
peer_info.pr_lnd_u.
pr_peer_credits.
cr_peer_tx_credits)
== NULL)
goto out;
if (cYAML_create_number(peer, "available_rtr_credits",
peer_info.pr_lnd_u.
pr_peer_credits.
cr_peer_rtr_credits)
== NULL)
goto out;
if (cYAML_create_number(peer, "min_rtr_credits",
peer_info.pr_lnd_u.
pr_peer_credits.
cr_peer_min_rtr_credits)
== NULL)
goto out;
if (cYAML_create_number(peer, "tx_q_num_of_buf",
peer_info.pr_lnd_u.
pr_peer_credits.
cr_peer_tx_qnob)
== NULL)
goto out;
}
if (l_errno != ENOENT) {
snprintf(err_str,
sizeof(err_str),
"\"cannot get peer information: %s\"",
strerror(l_errno));
rc = -l_errno;
goto out;
}
j++;
} while (j < ncpt);
/* print output iff show_rc is not provided */
if (show_rc == NULL)
cYAML_print_tree(root);
snprintf(err_str, sizeof(err_str), "\"success\"");
rc = LUSTRE_CFG_RC_NO_ERR;
out:
if (show_rc == NULL || rc != LUSTRE_CFG_RC_NO_ERR) {
cYAML_free_tree(root);
} else if (show_rc != NULL && *show_rc != NULL) {
struct cYAML *show_node;
/* find the peer node, if one doesn't exist then
* insert one. Otherwise add to the one there
*/
show_node = cYAML_get_object_item(*show_rc,
"peer_credits");
if (show_node != NULL && cYAML_is_sequence(show_node)) {
cYAML_insert_child(show_node, first_seq);
free(peer_root);
free(root);
} else if (show_node == NULL) {
cYAML_insert_sibling((*show_rc)->cy_child,
peer_root);
free(root);
} else {
cYAML_free_tree(root);
}
} else {
*show_rc = root;
}
cYAML_build_error(rc, seq_no, SHOW_CMD, "peer_credits", err_str,
err_rc);
return rc;
}
int jt_lfsck_start(int argc, char **argv)
{
struct obd_ioctl_data data;
char rawbuf[MAX_IOC_BUFLEN], *buf = rawbuf;
char device[MAX_OBD_NAME];
struct lfsck_start start;
char *optstring = "M:e:hn:rs:t:";
int opt, index, rc, val, i, type;
memset(&data, 0, sizeof(data));
memset(&start, 0, sizeof(start));
memset(device, 0, MAX_OBD_NAME);
start.ls_version = LFSCK_VERSION_V1;
start.ls_active = LFSCK_TYPES_DEF;
/* Reset the 'optind' for the case of getopt_long() called multiple
* times under the same lctl. */
optind = 0;
while ((opt = getopt_long(argc, argv, optstring, long_opt_start,
&index)) != EOF) {
switch (opt) {
case 'M':
rc = lfsck_pack_dev(&data, device, optarg);
if (rc != 0)
return rc;
break;
case 'e':
if (strcmp(optarg, "abort") == 0) {
start.ls_flags |= LPF_FAILOUT;
} else if (strcmp(optarg, "continue") != 0) {
fprintf(stderr, "Invalid error handler: %s. "
"The valid value should be: 'continue'"
"(default) or 'abort'.\n", optarg);
return -EINVAL;
}
start.ls_valid |= LSV_ERROR_HANDLE;
break;
case 'h':
usage_start();
return 0;
case 'n':
if (strcmp(optarg, "on") == 0) {
start.ls_flags |= LPF_DRYRUN;
} else if (strcmp(optarg, "off") != 0) {
fprintf(stderr, "Invalid dryrun switch: %s. "
"The valid value shou be: 'off'"
"(default) or 'on'\n", optarg);
return -EINVAL;
}
start.ls_valid |= LSV_DRYRUN;
break;
case 'r':
start.ls_flags |= LPF_RESET;
break;
case 's':
val = atoi(optarg);
start.ls_speed_limit = val;
start.ls_valid |= LSV_SPEED_LIMIT;
break;
case 't': {
char *str = optarg, *p, c;
start.ls_active = 0;
while (*str) {
while (*str == ' ' || *str == ',')
str++;
if (*str == 0)
break;
p = str;
while (*p != 0 && *p != ' ' && *p != ',')
p++;
c = *p;
*p = 0;
type = lfsck_name2type(str, strlen(str));
if (type == 0) {
fprintf(stderr, "Invalid type (%s).\n"
"The valid value should be "
"'layout', 'DNE' or "
"'namespace'.\n", str);
*p = c;
return -EINVAL;
}
*p = c;
str = p;
start.ls_active |= type;
}
if (start.ls_active == 0) {
fprintf(stderr, "Miss LFSCK type(s).\n"
"The valid value should be "
"'layout', 'DNE' or 'namespace'.\n");
return -EINVAL;
}
break;
}
default:
fprintf(stderr, "Invalid option, '-h' for help.\n");
return -EINVAL;
}
}
if (data.ioc_inlbuf4 == NULL) {
fprintf(stderr,
"Must sepcify MDT device to start LFSCK.\n");
return -EINVAL;
}
data.ioc_inlbuf1 = (char *)&start;
data.ioc_inllen1 = sizeof(start);
memset(buf, 0, sizeof(rawbuf));
rc = obd_ioctl_pack(&data, &buf, sizeof(rawbuf));
if (rc) {
fprintf(stderr, "Fail to pack ioctl data: rc = %d.\n", rc);
return rc;
}
rc = l_ioctl(OBD_DEV_ID, OBD_IOC_START_LFSCK, buf);
if (rc < 0) {
perror("Fail to start LFSCK");
return rc;
}
obd_ioctl_unpack(&data, buf, sizeof(rawbuf));
if (start.ls_active == 0) {
printf("Started LFSCK on the MDT device %s", device);
} else {
printf("Started LFSCK on the MDT device %s:", device);
i = 0;
while (lfsck_types_names[i].name != NULL) {
if (start.ls_active & lfsck_types_names[i].type) {
printf(" %s", lfsck_types_names[i].name);
start.ls_active &= ~lfsck_types_names[i].type;
}
i++;
}
if (start.ls_active != 0)
printf(" unknown(0x%x)", start.ls_active);
}
printf(".\n");
return 0;
}
int lustre_lnet_show_net(char *nw, int detail, int seq_no,
struct cYAML **show_rc, struct cYAML **err_rc)
{
char *buf;
struct lnet_ioctl_config_lnd_tunables *lnd_cfg;
struct lnet_ioctl_config_data *data;
struct lnet_ioctl_net_config *net_config;
__u32 net = LNET_NIDNET(LNET_NID_ANY);
int rc = LUSTRE_CFG_RC_OUT_OF_MEM, i, j;
int l_errno = 0;
struct cYAML *root = NULL, *tunables = NULL, *net_node = NULL,
*interfaces = NULL, *item = NULL, *first_seq = NULL;
int str_buf_len = LNET_MAX_SHOW_NUM_CPT * 2;
char str_buf[str_buf_len];
char *pos;
char err_str[LNET_MAX_STR_LEN];
bool exist = false;
size_t buf_len;
snprintf(err_str, sizeof(err_str), "\"out of memory\"");
buf_len = sizeof(*data) + sizeof(*net_config) + sizeof(*lnd_cfg);
buf = calloc(1, buf_len);
if (buf == NULL)
goto out;
data = (struct lnet_ioctl_config_data *)buf;
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;
}
}
root = cYAML_create_object(NULL, NULL);
if (root == NULL)
goto out;
net_node = cYAML_create_seq(root, "net");
if (net_node == NULL)
goto out;
for (i = 0;; i++) {
pos = str_buf;
memset(buf, 0, buf_len);
LIBCFS_IOC_INIT_V2(*data, cfg_hdr);
/*
* set the ioc_len to the proper value since INIT assumes
* size of data
*/
data->cfg_hdr.ioc_len = buf_len;
data->cfg_count = i;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_NET, data);
if (rc != 0) {
l_errno = errno;
break;
}
/* filter on provided data */
if (net != LNET_NIDNET(LNET_NID_ANY) &&
net != LNET_NIDNET(data->cfg_nid))
continue;
/* default rc to -1 in case we hit the goto */
rc = -1;
exist = true;
net_config = (struct lnet_ioctl_net_config *)data->cfg_bulk;
/* create the tree to be printed. */
item = cYAML_create_seq_item(net_node);
if (item == NULL)
goto out;
if (first_seq == NULL)
first_seq = item;
if (cYAML_create_string(item, "net",
libcfs_net2str(
LNET_NIDNET(data->cfg_nid)))
== NULL)
goto out;
if (cYAML_create_string(item, "nid",
libcfs_nid2str(data->cfg_nid)) == NULL)
goto out;
if (cYAML_create_string(item, "status",
(net_config->ni_status ==
LNET_NI_STATUS_UP) ?
"up" : "down") == NULL)
goto out;
/* don't add interfaces unless there is at least one
* interface */
if (strlen(net_config->ni_interfaces[0]) > 0) {
interfaces = cYAML_create_object(item, "interfaces");
if (interfaces == NULL)
goto out;
for (j = 0; j < LNET_MAX_INTERFACES; j++) {
if (lustre_interface_show_net(interfaces, j,
detail, data,
net_config) < 0)
goto out;
}
}
if (detail) {
char *limit;
tunables = cYAML_create_object(item, "tunables");
if (tunables == NULL)
goto out;
if (cYAML_create_number(tunables, "peer_timeout",
data->cfg_config_u.cfg_net.
net_peer_timeout) == NULL)
goto out;
if (cYAML_create_number(tunables, "peer_credits",
data->cfg_config_u.cfg_net.
net_peer_tx_credits) == NULL)
goto out;
if (cYAML_create_number(tunables,
"peer_buffer_credits",
data->cfg_config_u.cfg_net.
net_peer_rtr_credits) == NULL)
goto out;
if (cYAML_create_number(tunables, "credits",
data->cfg_config_u.cfg_net.
net_max_tx_credits) == NULL)
goto out;
/* out put the CPTs in the format: "[x,x,x,...]" */
limit = str_buf + str_buf_len - 3;
pos += snprintf(pos, limit - pos, "\"[");
for (j = 0 ; data->cfg_ncpts > 1 &&
j < data->cfg_ncpts &&
pos < limit; j++) {
pos += snprintf(pos, limit - pos,
"%d", net_config->ni_cpts[j]);
if ((j + 1) < data->cfg_ncpts)
pos += snprintf(pos, limit - pos, ",");
}
pos += snprintf(pos, 3, "]\"");
if (data->cfg_ncpts > 1 &&
cYAML_create_string(tunables, "CPT",
str_buf) == NULL)
goto out;
}
}
/* Print out the net information only if 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 networks: %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 net node, if one doesn't exist
* then insert one. Otherwise add to the one there
*/
show_node = cYAML_get_object_item(*show_rc, "net");
if (show_node != NULL && cYAML_is_sequence(show_node)) {
cYAML_insert_child(show_node, first_seq);
free(net_node);
free(root);
} else if (show_node == NULL) {
cYAML_insert_sibling((*show_rc)->cy_child,
net_node);
free(root);
} else {
cYAML_free_tree(root);
}
} else {
*show_rc = root;
}
cYAML_build_error(rc, seq_no, SHOW_CMD, "net", err_str, err_rc);
return rc;
}