/*
* LGPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of the
* License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see .
*
* LGPL HEADER END
*
* Copyright (c) 2014, 2016, Intel Corporation.
*
* Author:
* Amir Shehata
*/
/*
* There are two APIs:
* 1. APIs that take the actual parameters expanded. This is for other
* entities that would like to link against the library and call the APIs
* directly without having to form an intermediate representation.
* 2. APIs that take a YAML file and parses out the information there and
* calls the APIs mentioned in 1
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include "liblnd.h"
#include
#include
#include "liblnetconfig.h"
#include "cyaml.h"
#define CONFIG_CMD "configure"
#define UNCONFIG_CMD "unconfigure"
#define ADD_CMD "add"
#define DEL_CMD "del"
#define SHOW_CMD "show"
#define DBG_CMD "dbg"
/*
* lustre_lnet_ip_range_descr
* Describes an IP range.
* Each octect is an expression
*/
struct lustre_lnet_ip_range_descr {
struct list_head ipr_entry;
struct list_head ipr_expr;
};
/*
* lustre_lnet_ip2nets
* Describes an ip2nets rule. This can be on a list of rules.
*/
struct lustre_lnet_ip2nets {
struct lnet_dlc_network_descr ip2nets_net;
struct list_head ip2nets_ip_ranges;
};
/*
* free_intf_descr
* frees the memory allocated for an intf descriptor.
*/
void free_intf_descr(struct lnet_dlc_intf_descr *intf_descr)
{
if (!intf_descr)
return;
if (intf_descr->cpt_expr != NULL)
cfs_expr_list_free(intf_descr->cpt_expr);
free(intf_descr);
}
/*
* lustre_lnet_add_ip_range
* Formatting:
* given a string of the format:
* parse each expr into
* a lustre_lnet_ip_range_descr structure and insert on the list.
*
* This function is called from
* YAML on each ip-range.
* As a result of lnetctl command
* When building a NID or P2P selection rules
*/
int lustre_lnet_add_ip_range(struct list_head *list, char *str_ip_range)
{
struct lustre_lnet_ip_range_descr *ip_range;
int rc;
ip_range = calloc(1, sizeof(*ip_range));
if (ip_range == NULL)
return LUSTRE_CFG_RC_OUT_OF_MEM;
INIT_LIST_HEAD(&ip_range->ipr_entry);
INIT_LIST_HEAD(&ip_range->ipr_expr);
rc = cfs_ip_addr_parse(str_ip_range, strlen(str_ip_range),
&ip_range->ipr_expr);
if (rc != 0)
return LUSTRE_CFG_RC_BAD_PARAM;
list_add_tail(&ip_range->ipr_entry, list);
return LUSTRE_CFG_RC_NO_ERR;
}
int lustre_lnet_add_intf_descr(struct list_head *list, char *intf, int len)
{
char *open_sq_bracket = NULL, *close_sq_bracket = NULL,
*intf_name;
struct lnet_dlc_intf_descr *intf_descr = NULL;
int rc;
char intf_string[LNET_MAX_STR_LEN];
if (len >= LNET_MAX_STR_LEN)
return LUSTRE_CFG_RC_BAD_PARAM;
strncpy(intf_string, intf, len);
intf_string[len] = '\0';
intf_descr = calloc(1, sizeof(*intf_descr));
if (intf_descr == NULL)
return LUSTRE_CFG_RC_OUT_OF_MEM;
INIT_LIST_HEAD(&intf_descr->intf_on_network);
intf_name = intf_string;
open_sq_bracket = strchr(intf_string, '[');
if (open_sq_bracket != NULL) {
close_sq_bracket = strchr(intf_string, ']');
if (close_sq_bracket == NULL) {
free(intf_descr);
return LUSTRE_CFG_RC_BAD_PARAM;
}
rc = cfs_expr_list_parse(open_sq_bracket,
strlen(open_sq_bracket), 0, UINT_MAX,
&intf_descr->cpt_expr);
if (rc < 0) {
free(intf_descr);
return LUSTRE_CFG_RC_BAD_PARAM;
}
strncpy(intf_descr->intf_name, intf_name,
open_sq_bracket - intf_name);
intf_descr->intf_name[open_sq_bracket - intf_name] = '\0';
} else {
strcpy(intf_descr->intf_name, intf_name);
intf_descr->cpt_expr = NULL;
}
list_add_tail(&intf_descr->intf_on_network, list);
return LUSTRE_CFG_RC_NO_ERR;
}
void lustre_lnet_init_nw_descr(struct lnet_dlc_network_descr *nw_descr)
{
if (nw_descr != NULL) {
INIT_LIST_HEAD(&nw_descr->network_on_rule);
INIT_LIST_HEAD(&nw_descr->nw_intflist);
}
}
int lustre_lnet_parse_nids(char *nids, char **array, int size,
char ***out_array)
{
int num_nids = 0;
char *comma = nids, *cur, *entry;
char **new_array;
int i, len, start = 0, finish = 0;
if (nids == NULL || strlen(nids) == 0)
return size;
/* count the number or new nids, by counting the number of commas */
while (comma) {
comma = strchr(comma, ',');
if (comma) {
comma++;
num_nids++;
} else {
num_nids++;
}
}
/*
* if the array is not NULL allocate a large enough array to house
* the old and new entries
*/
new_array = calloc(sizeof(char*),
(size > 0) ? size + num_nids : num_nids);
if (!new_array)
goto failed;
/* parse our the new nids and add them to the tail of the array */
comma = nids;
cur = nids;
start = (size > 0) ? size: 0;
finish = (size > 0) ? size + num_nids : num_nids;
for (i = start; i < finish; i++) {
comma = strchr(comma, ',');
if (!comma)
/*
* the length of the string to be parsed out is
* from cur to end of string. So it's good enough
* to strlen(cur)
*/
len = strlen(cur) + 1;
else
/* length of the string is comma - cur */
len = (comma - cur) + 1;
entry = calloc(1, len);
if (!entry) {
finish = i > 0 ? i - 1: 0;
goto failed;
}
strncpy(entry, cur, len - 1);
entry[len] = '\0';
new_array[i] = entry;
if (comma) {
comma++;
cur = comma;
}
}
/* add the old entries in the array and delete the old array*/
for (i = 0; i < size; i++)
new_array[i] = array[i];
if (array)
free(array);
*out_array = new_array;
return finish;
failed:
for (i = start; i < finish; i++)
free(new_array[i]);
if (new_array)
free(new_array);
return size;
}
/*
* format expected:
* [], [],..
*/
int lustre_lnet_parse_interfaces(char *intf_str,
struct lnet_dlc_network_descr *nw_descr)
{
char *open_square;
char *close_square;
char *comma;
char *cur = intf_str, *next = NULL;
char *end = intf_str + strlen(intf_str);
int rc, len;
struct lnet_dlc_intf_descr *intf_descr, *tmp;
if (nw_descr == NULL)
return LUSTRE_CFG_RC_BAD_PARAM;
while (cur < end) {
open_square = strchr(cur, '[');
if (open_square != NULL) {
close_square = strchr(cur, ']');
if (close_square == NULL) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto failed;
}
comma = strchr(cur, ',');
if (comma != NULL && comma > close_square) {
next = comma + 1;
len = next - close_square;
} else {
len = strlen(cur);
next = cur + len;
}
} else {
comma = strchr(cur, ',');
if (comma != NULL) {
next = comma + 1;
len = comma - cur;
} else {
len = strlen(cur);
next = cur + len;
}
}
rc = lustre_lnet_add_intf_descr(&nw_descr->nw_intflist, cur, len);
if (rc != LUSTRE_CFG_RC_NO_ERR)
goto failed;
cur = next;
}
return LUSTRE_CFG_RC_NO_ERR;
failed:
list_for_each_entry_safe(intf_descr, tmp, &nw_descr->nw_intflist,
intf_on_network) {
list_del(&intf_descr->intf_on_network);
free_intf_descr(intf_descr);
}
return rc;
}
int lustre_lnet_config_lib_init(void)
{
return register_ioc_dev(LNET_DEV_ID, LNET_DEV_PATH,
LNET_DEV_MAJOR, LNET_DEV_MINOR);
}
void lustre_lnet_config_lib_uninit(void)
{
unregister_ioc_dev(LNET_DEV_ID);
}
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;
}
static lnet_nid_t *allocate_create_nid_array(char **nids, __u32 num_nids,
char *err_str)
{
lnet_nid_t *array = NULL;
__u32 i;
if (!nids || num_nids == 0) {
snprintf(err_str, LNET_MAX_STR_LEN, "no NIDs to add");
return NULL;
}
array = calloc(sizeof(*array) * num_nids, 1);
if (array == NULL) {
snprintf(err_str, LNET_MAX_STR_LEN, "out of memory");
return NULL;
}
for (i = 0; i < num_nids; i++) {
array[i] = libcfs_str2nid(nids[i]);
if (array[i] == LNET_NID_ANY) {
free(array);
snprintf(err_str, LNET_MAX_STR_LEN,
"bad NID: '%s'",
nids[i]);
return NULL;
}
}
return array;
}
static int dispatch_peer_ni_cmd(lnet_nid_t pnid, lnet_nid_t nid, __u32 cmd,
struct lnet_ioctl_peer_cfg *data,
char *err_str, char *cmd_str)
{
int rc;
data->prcfg_prim_nid = pnid;
data->prcfg_cfg_nid = nid;
rc = l_ioctl(LNET_DEV_ID, cmd, data);
if (rc != 0) {
rc = -errno;
snprintf(err_str,
LNET_MAX_STR_LEN,
"\"cannot %s peer ni: %s\"",
(cmd_str) ? cmd_str : "add", strerror(errno));
}
return rc;
}
int lustre_lnet_config_peer_nid(char *pnid, char **nid, int num_nids,
bool mr, int seq_no, struct cYAML **err_rc)
{
struct lnet_ioctl_peer_cfg data;
lnet_nid_t prim_nid = LNET_NID_ANY;
int rc = LUSTRE_CFG_RC_NO_ERR;
int idx = 0;
bool nid0_used = false;
char err_str[LNET_MAX_STR_LEN] = {0};
lnet_nid_t *nids = allocate_create_nid_array(nid, num_nids, err_str);
if (pnid) {
prim_nid = libcfs_str2nid(pnid);
if (prim_nid == LNET_NID_ANY) {
snprintf(err_str, sizeof(err_str),
"bad key NID: '%s'",
pnid);
rc = LUSTRE_CFG_RC_MISSING_PARAM;
goto out;
}
} else if (!nids || nids[0] == LNET_NID_ANY) {
snprintf(err_str, sizeof(err_str),
"no NIDs provided for configuration");
rc = LUSTRE_CFG_RC_MISSING_PARAM;
goto out;
} else {
prim_nid = LNET_NID_ANY;
}
snprintf(err_str, sizeof(err_str), "\"Success\"");
LIBCFS_IOC_INIT_V2(data, prcfg_hdr);
data.prcfg_mr = mr;
/*
* if prim_nid is not specified use the first nid in the list of
* nids provided as the prim_nid. NOTE: on entering 'if' we must
* have at least 1 NID
*/
if (prim_nid == LNET_NID_ANY) {
nid0_used = true;
prim_nid = nids[0];
}
/* Create the prim_nid first */
rc = dispatch_peer_ni_cmd(prim_nid, LNET_NID_ANY,
IOC_LIBCFS_ADD_PEER_NI,
&data, err_str, "add");
if (rc != 0)
goto out;
/* add the rest of the nids to the key nid if any are available */
for (idx = nid0_used ? 1 : 0 ; nids && idx < num_nids; idx++) {
/*
* If prim_nid is not provided then the first nid in the
* list becomes the prim_nid. First time round the loop use
* LNET_NID_ANY for the first parameter, then use nid[0]
* as the key nid after wards
*/
rc = dispatch_peer_ni_cmd(prim_nid, nids[idx],
IOC_LIBCFS_ADD_PEER_NI, &data,
err_str, "add");
if (rc != 0)
goto out;
}
out:
if (nids != NULL)
free(nids);
cYAML_build_error(rc, seq_no, ADD_CMD, "peer_ni", err_str, err_rc);
return rc;
}
int lustre_lnet_del_peer_nid(char *pnid, char **nid, int num_nids,
int seq_no, struct cYAML **err_rc)
{
struct lnet_ioctl_peer_cfg data;
lnet_nid_t prim_nid;
int rc = LUSTRE_CFG_RC_NO_ERR;
int idx = 0;
char err_str[LNET_MAX_STR_LEN] = {0};
lnet_nid_t *nids = allocate_create_nid_array(nid, num_nids, err_str);
if (pnid == NULL) {
snprintf(err_str, sizeof(err_str),
"\"Primary nid is not provided\"");
rc = LUSTRE_CFG_RC_MISSING_PARAM;
goto out;
} else {
prim_nid = libcfs_str2nid(pnid);
if (prim_nid == LNET_NID_ANY) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, sizeof(err_str),
"bad key NID: '%s'",
pnid);
goto out;
}
}
snprintf(err_str, sizeof(err_str), "\"Success\"");
LIBCFS_IOC_INIT_V2(data, prcfg_hdr);
if (!nids || nids[0] == LNET_NID_ANY) {
rc = dispatch_peer_ni_cmd(prim_nid, LNET_NID_ANY,
IOC_LIBCFS_DEL_PEER_NI,
&data, err_str, "del");
goto out;
}
for (idx = 0; nids && idx < num_nids; idx++) {
rc = dispatch_peer_ni_cmd(prim_nid, nids[idx],
IOC_LIBCFS_DEL_PEER_NI, &data,
err_str, "del");
if (rc != 0)
goto out;
}
out:
if (nids != NULL)
free(nids);
cYAML_build_error(rc, seq_no, DEL_CMD, "peer_ni", err_str, err_rc);
return rc;
}
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;
}
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_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;
}
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_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;
}
} 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",
(int) 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;
}
static int socket_intf_query(int request, char *intf,
struct ifreq *ifr)
{
int rc = 0;
int sockfd;
if (strlen(intf) >= IFNAMSIZ || ifr == NULL)
return LUSTRE_CFG_RC_BAD_PARAM;
sockfd = socket(AF_INET, SOCK_DGRAM, 0);
if (sockfd < 0)
return LUSTRE_CFG_RC_BAD_PARAM;
strcpy(ifr->ifr_name, intf);
rc = ioctl(sockfd, request, ifr);
if (rc != 0)
rc = LUSTRE_CFG_RC_BAD_PARAM;
close(sockfd);
return rc;
}
/*
* for each interface in the array of interfaces find the IP address of
* that interface, create its nid and add it to an array of NIDs.
* Stop if any of the interfaces is down
*/
static int lustre_lnet_intf2nids(struct lnet_dlc_network_descr *nw,
lnet_nid_t **nids, __u32 *nnids)
{
int i = 0, count = 0, rc;
struct ifreq ifr;
__u32 ip;
struct lnet_dlc_intf_descr *intf;
if (nw == NULL || nids == NULL)
return LUSTRE_CFG_RC_BAD_PARAM;
list_for_each_entry(intf, &nw->nw_intflist, intf_on_network)
count++;
*nids = calloc(count, sizeof(lnet_nid_t));
if (*nids == NULL)
return LUSTRE_CFG_RC_OUT_OF_MEM;
list_for_each_entry(intf, &nw->nw_intflist, intf_on_network) {
memset(&ifr, 0, sizeof(ifr));
rc = socket_intf_query(SIOCGIFFLAGS, intf->intf_name, &ifr);
if (rc != 0)
goto failed;
if ((ifr.ifr_flags & IFF_UP) == 0) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto failed;
}
memset(&ifr, 0, sizeof(ifr));
rc = socket_intf_query(SIOCGIFADDR, intf->intf_name, &ifr);
if (rc != 0)
goto failed;
ip = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr;
ip = bswap_32(ip);
(*nids)[i] = LNET_MKNID(nw->nw_id, ip);
i++;
}
*nnids = count;
return 0;
failed:
free(*nids);
*nids = NULL;
return rc;
}
/*
* called repeatedly until a match or no more ip range
* What do you have?
* ip_range expression
* interface list with all the interface names.
* all the interfaces in the system.
*
* try to match the ip_range expr to one of the interfaces' IPs in
* the system. If we hit a patch for an interface. Check if that
* interface name is in the list.
*
* If there are more than one interface in the list, then make sure
* that the IPs for all of these interfaces match the ip ranges
* given.
*
* for each interface in intf_list
* look up the intf name in ifa
* if not there then no match
* check ip obtained from ifa against a match to any of the
* ip_ranges given.
* If no match, then fail
*
* The result is that all the interfaces have to match.
*/
int lustre_lnet_match_ip_to_intf(struct ifaddrs *ifa,
struct list_head *intf_list,
struct list_head *ip_ranges)
{
int rc;
__u32 ip;
struct lnet_dlc_intf_descr *intf_descr, *tmp;
struct ifaddrs *ifaddr = ifa;
struct lustre_lnet_ip_range_descr *ip_range;
int family;
/*
* if there are no explicit interfaces, and no ip ranges, then
* configure the first tcp interface we encounter.
*/
if (list_empty(intf_list) && list_empty(ip_ranges)) {
for (ifaddr = ifa; ifaddr != NULL; ifaddr = ifaddr->ifa_next) {
if (ifaddr->ifa_addr == NULL)
continue;
if ((ifaddr->ifa_flags & IFF_UP) == 0)
continue;
family = ifaddr->ifa_addr->sa_family;
if (family == AF_INET &&
strcmp(ifaddr->ifa_name, "lo") != 0) {
rc = lustre_lnet_add_intf_descr
(intf_list, ifaddr->ifa_name,
strlen(ifaddr->ifa_name));
if (rc != LUSTRE_CFG_RC_NO_ERR)
return rc;
return LUSTRE_CFG_RC_MATCH;
}
}
return LUSTRE_CFG_RC_NO_MATCH;
}
/*
* First interface which matches an IP pattern will be used
*/
if (list_empty(intf_list)) {
/*
* no interfaces provided in the rule, but an ip range is
* provided, so try and match an interface to the ip
* range.
*/
for (ifaddr = ifa; ifaddr != NULL; ifaddr = ifaddr->ifa_next) {
if (ifaddr->ifa_addr == NULL)
continue;
if ((ifaddr->ifa_flags & IFF_UP) == 0)
continue;
family = ifaddr->ifa_addr->sa_family;
if (family == AF_INET) {
ip = ((struct sockaddr_in *)ifaddr->ifa_addr)->
sin_addr.s_addr;
list_for_each_entry(ip_range, ip_ranges,
ipr_entry) {
rc = cfs_ip_addr_match(bswap_32(ip),
&ip_range->ipr_expr);
if (!rc)
continue;
rc = lustre_lnet_add_intf_descr
(intf_list, ifaddr->ifa_name,
strlen(ifaddr->ifa_name));
if (rc != LUSTRE_CFG_RC_NO_ERR)
return rc;
}
}
}
if (!list_empty(intf_list))
return LUSTRE_CFG_RC_MATCH;
return LUSTRE_CFG_RC_NO_MATCH;
}
/*
* If an interface is explicitly specified the ip-range might or
* might not be specified. if specified the interface needs to match the
* ip-range. If no ip-range then the interfaces are
* automatically matched if they are all up.
* If > 1 interfaces all the interfaces must match for the NI to
* be configured.
*/
list_for_each_entry_safe(intf_descr, tmp, intf_list, intf_on_network) {
for (ifaddr = ifa; ifaddr != NULL; ifaddr = ifaddr->ifa_next) {
if (ifaddr->ifa_addr == NULL)
continue;
family = ifaddr->ifa_addr->sa_family;
if (family == AF_INET &&
strcmp(intf_descr->intf_name,
ifaddr->ifa_name) == 0)
break;
}
if (ifaddr == NULL) {
list_del(&intf_descr->intf_on_network);
free_intf_descr(intf_descr);
continue;
}
if ((ifaddr->ifa_flags & IFF_UP) == 0) {
list_del(&intf_descr->intf_on_network);
free_intf_descr(intf_descr);
continue;
}
ip = ((struct sockaddr_in *)ifaddr->ifa_addr)->sin_addr.s_addr;
rc = 1;
list_for_each_entry(ip_range, ip_ranges, ipr_entry) {
rc = cfs_ip_addr_match(bswap_32(ip), &ip_range->ipr_expr);
if (rc)
break;
}
if (!rc) {
/* no match for this interface */
list_del(&intf_descr->intf_on_network);
free_intf_descr(intf_descr);
}
}
return LUSTRE_CFG_RC_MATCH;
}
int lustre_lnet_resolve_ip2nets_rule(struct lustre_lnet_ip2nets *ip2nets,
lnet_nid_t **nids, __u32 *nnids)
{
struct ifaddrs *ifa;
int rc = LUSTRE_CFG_RC_NO_ERR;
rc = getifaddrs(&ifa);
if (rc < 0)
return -errno;
rc = lustre_lnet_match_ip_to_intf(ifa,
&ip2nets->ip2nets_net.nw_intflist,
&ip2nets->ip2nets_ip_ranges);
if (rc != LUSTRE_CFG_RC_MATCH) {
freeifaddrs(ifa);
return rc;
}
rc = lustre_lnet_intf2nids(&ip2nets->ip2nets_net, nids, nnids);
if (rc != LUSTRE_CFG_RC_NO_ERR) {
*nids = NULL;
*nnids = 0;
}
freeifaddrs(ifa);
return rc;
}
static int
lustre_lnet_ioctl_config_ni(struct list_head *intf_list,
struct lnet_ioctl_config_lnd_tunables *tunables,
struct cfs_expr_list *global_cpts,
lnet_nid_t *nids, char *err_str)
{
char *data;
struct lnet_ioctl_config_ni *conf;
struct lnet_ioctl_config_lnd_tunables *tun = NULL;
int rc = LUSTRE_CFG_RC_NO_ERR, i = 0;
size_t len;
int count;
struct lnet_dlc_intf_descr *intf_descr;
__u32 *cpt_array;
struct cfs_expr_list *cpt_expr;
list_for_each_entry(intf_descr, intf_list,
intf_on_network) {
if (tunables != NULL)
len = sizeof(struct lnet_ioctl_config_ni) +
sizeof(struct lnet_ioctl_config_lnd_tunables);
else
len = sizeof(struct lnet_ioctl_config_ni);
data = calloc(1, len);
if (!data)
return LUSTRE_CFG_RC_OUT_OF_MEM;
conf = (struct lnet_ioctl_config_ni*) data;
if (tunables != NULL)
tun = (struct lnet_ioctl_config_lnd_tunables*)
conf->lic_bulk;
LIBCFS_IOC_INIT_V2(*conf, lic_cfg_hdr);
conf->lic_cfg_hdr.ioc_len = len;
conf->lic_nid = nids[i];
strncpy(conf->lic_ni_intf[0], intf_descr->intf_name,
LNET_MAX_STR_LEN);
if (intf_descr->cpt_expr != NULL)
cpt_expr = intf_descr->cpt_expr;
else if (global_cpts != NULL)
cpt_expr = global_cpts;
else
cpt_expr = NULL;
if (cpt_expr != NULL) {
count = cfs_expr_list_values(cpt_expr,
LNET_MAX_SHOW_NUM_CPT,
&cpt_array);
if (count > 0) {
memcpy(conf->lic_cpts, cpt_array,
sizeof(cpt_array[0]) * LNET_MAX_STR_LEN);
free(cpt_array);
} else {
count = 0;
}
} else {
count = 0;
}
conf->lic_ncpts = count;
if (tunables != NULL)
memcpy(tun, tunables, sizeof(*tunables));
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_ADD_LOCAL_NI, data);
if (rc < 0) {
rc = -errno;
snprintf(err_str,
LNET_MAX_STR_LEN,
"\"cannot add network: %s\"", strerror(errno));
free(data);
return rc;
}
free(data);
i++;
}
return LUSTRE_CFG_RC_NO_ERR;
}
int
lustre_lnet_config_ip2nets(struct lustre_lnet_ip2nets *ip2nets,
struct lnet_ioctl_config_lnd_tunables *tunables,
struct cfs_expr_list *global_cpts,
int seq_no, struct cYAML **err_rc)
{
lnet_nid_t *nids = NULL;
__u32 nnids = 0;
int rc;
char err_str[LNET_MAX_STR_LEN];
snprintf(err_str, sizeof(err_str), "\"success\"");
if (!ip2nets) {
snprintf(err_str,
sizeof(err_str),
"\"incomplete ip2nets information\"");
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
/*
* call below function to resolve the rules into a list of nids.
* The memory is allocated in that function then freed here when
* it's no longer needed.
*/
rc = lustre_lnet_resolve_ip2nets_rule(ip2nets, &nids, &nnids);
if (rc != LUSTRE_CFG_RC_NO_ERR && rc != LUSTRE_CFG_RC_MATCH) {
snprintf(err_str,
sizeof(err_str),
"\"cannot resolve ip2nets rule\"");
goto out;
}
if (list_empty(&ip2nets->ip2nets_net.nw_intflist)) {
snprintf(err_str, sizeof(err_str),
"\"no interfaces match ip2nets rules\"");
goto free_nids_out;
}
rc = lustre_lnet_ioctl_config_ni(&ip2nets->ip2nets_net.nw_intflist,
tunables, global_cpts, nids,
err_str);
free_nids_out:
free(nids);
out:
cYAML_build_error(rc, seq_no, ADD_CMD, "ip2nets", err_str, err_rc);
return rc;
}
int lustre_lnet_config_ni(struct lnet_dlc_network_descr *nw_descr,
struct cfs_expr_list *global_cpts,
char *ip2net,
struct lnet_ioctl_config_lnd_tunables *tunables,
int seq_no, struct cYAML **err_rc)
{
char *data = NULL;
struct lnet_ioctl_config_ni *conf;
struct lnet_ioctl_config_lnd_tunables *tun = NULL;
char buf[LNET_MAX_STR_LEN];
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN];
lnet_nid_t *nids = NULL;
__u32 nnids = 0;
size_t len;
int count;
struct lnet_dlc_intf_descr *intf_descr, *tmp;
__u32 *cpt_array;
snprintf(err_str, sizeof(err_str), "\"success\"");
if (ip2net == NULL && nw_descr == NULL) {
snprintf(err_str,
sizeof(err_str),
"\"mandatory parameters not specified.\"");
rc = LUSTRE_CFG_RC_MISSING_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 (ip2net != NULL) {
if (tunables != NULL)
len = sizeof(struct lnet_ioctl_config_ni) +
sizeof(struct lnet_ioctl_config_lnd_tunables);
else
len = sizeof(struct lnet_ioctl_config_ni);
data = calloc(1, len);
if (!data) {
rc = LUSTRE_CFG_RC_OUT_OF_MEM;
goto out;
}
conf = (struct lnet_ioctl_config_ni*) data;
if (tunables != NULL)
tun = (struct lnet_ioctl_config_lnd_tunables*)
(data + sizeof(*conf));
LIBCFS_IOC_INIT_V2(*conf, lic_cfg_hdr);
conf->lic_cfg_hdr.ioc_len = len;
strncpy(conf->lic_legacy_ip2nets, ip2net,
LNET_MAX_STR_LEN);
if (global_cpts != NULL) {
count = cfs_expr_list_values(global_cpts,
LNET_MAX_SHOW_NUM_CPT,
&cpt_array);
if (count > 0) {
memcpy(conf->lic_cpts, cpt_array,
sizeof(cpt_array[0]) * LNET_MAX_STR_LEN);
free(cpt_array);
} else {
count = 0;
}
} else {
count = 0;
}
conf->lic_ncpts = count;
if (tunables != NULL)
memcpy(tun, tunables, sizeof(*tunables));
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_ADD_LOCAL_NI, data);
if (rc < 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot add network: %s\"", strerror(errno));
goto out;
}
goto out;
}
if (LNET_NETTYP(nw_descr->nw_id) == LOLND) {
rc = LUSTRE_CFG_RC_NO_ERR;
goto out;
}
if (nw_descr->nw_id == LNET_NIDNET(LNET_NID_ANY)) {
snprintf(err_str,
sizeof(err_str),
"\"cannot parse net '%s'\"",
libcfs_net2str(nw_descr->nw_id));
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
if (list_empty(&nw_descr->nw_intflist)) {
snprintf(err_str,
sizeof(err_str),
"\"no interface name provided\"");
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
rc = lustre_lnet_intf2nids(nw_descr, &nids, &nnids);
if (rc != 0) {
snprintf(err_str, sizeof(err_str),
"\"bad parameter\"");
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
rc = lustre_lnet_ioctl_config_ni(&nw_descr->nw_intflist,
tunables, global_cpts, nids,
err_str);
out:
if (nw_descr != NULL) {
list_for_each_entry_safe(intf_descr, tmp,
&nw_descr->nw_intflist,
intf_on_network) {
list_del(&intf_descr->intf_on_network);
free_intf_descr(intf_descr);
}
}
cYAML_build_error(rc, seq_no, ADD_CMD, "net", err_str, err_rc);
if (nids)
free(nids);
if (data)
free(data);
return rc;
}
int lustre_lnet_del_ni(struct lnet_dlc_network_descr *nw_descr,
int seq_no, struct cYAML **err_rc)
{
struct lnet_ioctl_config_ni data;
int rc = LUSTRE_CFG_RC_NO_ERR, i;
char err_str[LNET_MAX_STR_LEN];
lnet_nid_t *nids = NULL;
__u32 nnids = 0;
struct lnet_dlc_intf_descr *intf_descr, *tmp;
snprintf(err_str, sizeof(err_str), "\"success\"");
if (nw_descr == NULL) {
snprintf(err_str,
sizeof(err_str),
"\"missing mandatory parameter\"");
rc = LUSTRE_CFG_RC_MISSING_PARAM;
goto out;
}
if (LNET_NETTYP(nw_descr->nw_id) == LOLND)
return LUSTRE_CFG_RC_NO_ERR;
if (nw_descr->nw_id == LNET_NIDNET(LNET_NID_ANY)) {
snprintf(err_str,
sizeof(err_str),
"\"cannot parse net '%s'\"",
libcfs_net2str(nw_descr->nw_id));
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
rc = lustre_lnet_intf2nids(nw_descr, &nids, &nnids);
if (rc != 0) {
snprintf(err_str, sizeof(err_str),
"\"bad parameter\"");
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
/*
* no interfaces just the nw_id is specified
*/
if (nnids == 0) {
nids = calloc(1, sizeof(*nids));
if (nids == NULL) {
snprintf(err_str, sizeof(err_str),
"\"out of memory\"");
rc = LUSTRE_CFG_RC_OUT_OF_MEM;
goto out;
}
nids[0] = LNET_MKNID(nw_descr->nw_id, 0);
nnids = 1;
}
for (i = 0; i < nnids; i++) {
LIBCFS_IOC_INIT_V2(data, lic_cfg_hdr);
data.lic_nid = nids[i];
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_DEL_LOCAL_NI, &data);
if (rc < 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot del network: %s\"", strerror(errno));
}
}
list_for_each_entry_safe(intf_descr, tmp, &nw_descr->nw_intflist,
intf_on_network) {
list_del(&intf_descr->intf_on_network);
free_intf_descr(intf_descr);
}
out:
cYAML_build_error(rc, seq_no, DEL_CMD, "net", err_str, err_rc);
if (nids != NULL)
free(nids);
return rc;
}
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_ni *ni_data;
struct lnet_ioctl_config_lnd_tunables *lnd;
struct lnet_ioctl_element_stats *stats;
__u32 net = LNET_NIDNET(LNET_NID_ANY);
__u32 prev_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,
*tmp = NULL, *statistics = 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, new_net = true;
int net_num = 0;
size_t buf_size = sizeof(*ni_data) + sizeof(*lnd) + sizeof(*stats);
snprintf(err_str, sizeof(err_str), "\"out of memory\"");
buf = calloc(1, buf_size);
if (buf == NULL)
goto out;
ni_data = (struct lnet_ioctl_config_ni *)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;
__u32 rc_net;
memset(buf, 0, buf_size);
LIBCFS_IOC_INIT_V2(*ni_data, lic_cfg_hdr);
/*
* set the ioc_len to the proper value since INIT assumes
* size of data
*/
ni_data->lic_cfg_hdr.ioc_len = buf_size;
ni_data->lic_idx = i;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_LOCAL_NI, ni_data);
if (rc != 0) {
l_errno = errno;
break;
}
rc_net = LNET_NIDNET(ni_data->lic_nid);
/* filter on provided data */
if (net != LNET_NIDNET(LNET_NID_ANY) &&
net != rc_net)
continue;
/* default rc to -1 in case we hit the goto */
rc = -1;
exist = true;
stats = (struct lnet_ioctl_element_stats *)ni_data->lic_bulk;
lnd = (struct lnet_ioctl_config_lnd_tunables *)
(ni_data->lic_bulk + sizeof(*stats));
if (rc_net != prev_net) {
prev_net = rc_net;
new_net = true;
net_num++;
}
if (new_net) {
if (!cYAML_create_string(net_node, "net type",
libcfs_net2str(rc_net)))
goto out;
tmp = cYAML_create_seq(net_node, "local NI(s)");
if (tmp == NULL)
goto out;
new_net = false;
}
/* create the tree to be printed. */
item = cYAML_create_seq_item(tmp);
if (item == NULL)
goto out;
if (first_seq == NULL)
first_seq = item;
if (cYAML_create_string(item, "nid",
libcfs_nid2str(ni_data->lic_nid)) == NULL)
goto out;
if (cYAML_create_string(item,
"status",
(ni_data->lic_status ==
LNET_NI_STATUS_UP) ?
"up" : "down") == NULL)
goto out;
/* don't add interfaces unless there is at least one
* interface */
if (strlen(ni_data->lic_ni_intf[0]) > 0) {
interfaces = cYAML_create_object(item, "interfaces");
if (interfaces == NULL)
goto out;
for (j = 0; j < LNET_INTERFACES_NUM; j++) {
if (strlen(ni_data->lic_ni_intf[j]) > 0) {
snprintf(str_buf,
sizeof(str_buf), "%d", j);
if (cYAML_create_string(interfaces,
str_buf,
ni_data->lic_ni_intf[j]) ==
NULL)
goto out;
}
}
}
if (detail) {
char *limit;
statistics = cYAML_create_object(item, "statistics");
if (statistics == NULL)
goto out;
if (cYAML_create_number(statistics, "send_count",
stats->iel_send_count)
== NULL)
goto out;
if (cYAML_create_number(statistics, "recv_count",
stats->iel_recv_count)
== NULL)
goto out;
if (cYAML_create_number(statistics, "drop_count",
stats->iel_drop_count)
== NULL)
goto out;
tunables = cYAML_create_object(item, "tunables");
if (!tunables)
goto out;
rc = lustre_net_show_tunables(tunables, &lnd->lt_cmn);
if (rc != LUSTRE_CFG_RC_NO_ERR)
goto out;
tunables = cYAML_create_object(item, "lnd tunables");
if (tunables == NULL)
goto out;
rc = lustre_ni_show_tunables(tunables, LNET_NETTYP(rc_net),
&lnd->lt_tun);
if (rc != LUSTRE_CFG_RC_NO_ERR)
goto out;
if (cYAML_create_number(item, "tcp bonding",
ni_data->lic_tcp_bonding)
== NULL)
goto out;
if (cYAML_create_number(item, "dev cpt",
ni_data->lic_dev_cpt) == 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 ; ni_data->lic_ncpts >= 1 &&
j < ni_data->lic_ncpts &&
pos < limit; j++) {
pos += snprintf(pos, limit - pos,
"%d", ni_data->lic_cpts[j]);
if ((j + 1) < ni_data->lic_ncpts)
pos += snprintf(pos, limit - pos, ",");
}
pos += snprintf(pos, 3, "]\"");
if (ni_data->lic_ncpts >= 1 &&
cYAML_create_string(item, "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;
}
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;
}
int lustre_lnet_config_numa_range(int range, int seq_no, struct cYAML **err_rc)
{
struct lnet_ioctl_numa_range data;
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN];
snprintf(err_str, sizeof(err_str), "\"success\"");
if (range < 0) {
snprintf(err_str,
sizeof(err_str),
"\"range must be >= 0\"");
rc = LUSTRE_CFG_RC_OUT_OF_RANGE_PARAM;
goto out;
}
LIBCFS_IOC_INIT_V2(data, nr_hdr);
data.nr_range = range;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_SET_NUMA_RANGE, &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, "numa_range", 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 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 lustre_lnet_show_peer(char *knid, int detail, int seq_no,
struct cYAML **show_rc, struct cYAML **err_rc)
{
/*
* TODO: This function is changing in a future patch to accommodate
* PEER_LIST and proper filtering on any nid of the peer
*/
struct lnet_ioctl_peer_cfg peer_info;
struct lnet_peer_ni_credit_info *lpni_cri;
struct lnet_ioctl_element_stats *lpni_stats;
int rc = LUSTRE_CFG_RC_OUT_OF_MEM, ncpt = 0, i = 0, j = 0;
int l_errno = 0;
struct cYAML *root = NULL, *peer = NULL, *peer_ni = NULL,
*first_seq = NULL, *peer_root = NULL, *tmp = NULL;
char err_str[LNET_MAX_STR_LEN];
lnet_nid_t prev_primary_nid = LNET_NID_ANY, primary_nid = LNET_NID_ANY;
int data_size = sizeof(*lpni_cri) + sizeof(*lpni_stats);
char *data = malloc(data_size);
bool new_peer = true;
snprintf(err_str, sizeof(err_str),
"\"out of memory\"");
if (data == NULL)
goto out;
/* 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;
if (knid != NULL)
primary_nid = libcfs_str2nid(knid);
do {
for (i = 0;; i++) {
memset(data, 0, data_size);
memset(&peer_info, 0, sizeof(peer_info));
LIBCFS_IOC_INIT_V2(peer_info, prcfg_hdr);
peer_info.prcfg_hdr.ioc_len = sizeof(peer_info);
peer_info.prcfg_count = i;
peer_info.prcfg_bulk = (void *)data;
peer_info.prcfg_size = data_size;
rc = l_ioctl(LNET_DEV_ID,
IOC_LIBCFS_GET_PEER_NI, &peer_info);
if (rc != 0) {
l_errno = errno;
break;
}
if (primary_nid != LNET_NID_ANY &&
primary_nid != peer_info.prcfg_prim_nid)
continue;
lpni_cri = peer_info.prcfg_bulk;
lpni_stats = peer_info.prcfg_bulk + sizeof(*lpni_cri);
peer = cYAML_create_seq_item(peer_root);
if (peer == NULL)
goto out;
if (peer_info.prcfg_prim_nid != prev_primary_nid) {
prev_primary_nid = peer_info.prcfg_prim_nid;
new_peer = true;
}
if (new_peer) {
lnet_nid_t pnid = peer_info.prcfg_prim_nid;
if (cYAML_create_string(peer, "primary nid",
libcfs_nid2str(pnid))
== NULL)
goto out;
if (cYAML_create_string(peer, "Multi-Rail",
peer_info.prcfg_mr ?
"True" : "False")
== NULL)
goto out;
tmp = cYAML_create_seq(peer, "peer ni");
if (tmp == NULL)
goto out;
new_peer = false;
}
if (first_seq == NULL)
first_seq = peer;
peer_ni = cYAML_create_seq_item(tmp);
if (peer_ni == NULL)
goto out;
if (cYAML_create_string(peer_ni, "nid",
libcfs_nid2str
(peer_info.prcfg_cfg_nid))
== NULL)
goto out;
if (cYAML_create_string(peer_ni, "state",
lpni_cri->cr_aliveness)
== NULL)
goto out;
if (!detail)
continue;
if (cYAML_create_number(peer_ni, "max_ni_tx_credits",
lpni_cri->cr_ni_peer_tx_credits)
== NULL)
goto out;
if (cYAML_create_number(peer_ni, "available_tx_credits",
lpni_cri->cr_peer_tx_credits)
== NULL)
goto out;
if (cYAML_create_number(peer_ni, "min_tx_credits",
lpni_cri->cr_peer_min_tx_credits)
== NULL)
goto out;
if (cYAML_create_number(peer_ni, "tx_q_num_of_buf",
lpni_cri->cr_peer_tx_qnob)
== NULL)
goto out;
if (cYAML_create_number(peer_ni, "available_rtr_credits",
lpni_cri->cr_peer_rtr_credits)
== NULL)
goto out;
if (cYAML_create_number(peer_ni, "min_rtr_credits",
lpni_cri->cr_peer_min_rtr_credits)
== NULL)
goto out;
if (cYAML_create_number(peer_ni, "send_count",
lpni_stats->iel_send_count)
== NULL)
goto out;
if (cYAML_create_number(peer_ni, "recv_count",
lpni_stats->iel_recv_count)
== NULL)
goto out;
if (cYAML_create_number(peer_ni, "drop_count",
lpni_stats->iel_drop_count)
== NULL)
goto out;
if (cYAML_create_number(peer_ni, "refcount",
lpni_cri->cr_refcount) == 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");
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", err_str,
err_rc);
return rc;
}
int lustre_lnet_show_numa_range(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct lnet_ioctl_numa_range data;
int rc;
int l_errno;
char err_str[LNET_MAX_STR_LEN];
struct cYAML *root = NULL, *range = NULL;
snprintf(err_str, sizeof(err_str), "\"out of memory\"");
LIBCFS_IOC_INIT_V2(data, nr_hdr);
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_NUMA_RANGE, &data);
if (rc != 0) {
l_errno = errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot get numa range: %s\"",
strerror(l_errno));
rc = -l_errno;
goto out;
}
rc = LUSTRE_CFG_RC_OUT_OF_MEM;
root = cYAML_create_object(NULL, NULL);
if (root == NULL)
goto out;
range = cYAML_create_object(root, "numa");
if (range == NULL)
goto out;
if (cYAML_create_number(range, "range",
data.nr_range) == NULL)
goto out;
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) {
cYAML_insert_sibling((*show_rc)->cy_child,
root->cy_child);
free(root);
} else {
*show_rc = root;
}
cYAML_build_error(rc, seq_no, SHOW_CMD, "numa", 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;
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;
}
rc = LUSTRE_CFG_RC_OUT_OF_MEM;
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\"");
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) {
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;
}
typedef int (*cmd_handler_t)(struct cYAML *tree,
struct cYAML **show_rc,
struct cYAML **err_rc);
static int handle_yaml_config_route(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *net, *gw, *hop, *prio, *seq_no;
net = cYAML_get_object_item(tree, "net");
gw = cYAML_get_object_item(tree, "gateway");
hop = cYAML_get_object_item(tree, "hop");
prio = cYAML_get_object_item(tree, "priority");
seq_no = cYAML_get_object_item(tree, "seq_no");
return lustre_lnet_config_route((net) ? net->cy_valuestring : NULL,
(gw) ? gw->cy_valuestring : NULL,
(hop) ? hop->cy_valueint : -1,
(prio) ? prio->cy_valueint : -1,
(seq_no) ? seq_no->cy_valueint : -1,
err_rc);
}
static void yaml_free_string_array(char **array, int num)
{
int i;
char **sub_array = array;
for (i = 0; i < num; i++) {
if (*sub_array != NULL)
free(*sub_array);
sub_array++;
}
if (array)
free(array);
}
/*
* interfaces:
* 0: ['['']']
* 1: ['['']']
*/
static int yaml_copy_intf_info(struct cYAML *intf_tree,
struct lnet_dlc_network_descr *nw_descr)
{
struct cYAML *child = NULL;
int intf_num = 0, rc = LUSTRE_CFG_RC_NO_ERR;
struct lnet_dlc_intf_descr *intf_descr, *tmp;
if (intf_tree == NULL || nw_descr == NULL)
return LUSTRE_CFG_RC_BAD_PARAM;
/* now grab all the interfaces and their cpts */
child = intf_tree->cy_child;
while (child != NULL) {
if (child->cy_valuestring == NULL) {
child = child->cy_next;
continue;
}
if (strlen(child->cy_valuestring) >= LNET_MAX_STR_LEN)
goto failed;
rc = lustre_lnet_add_intf_descr(&nw_descr->nw_intflist,
child->cy_valuestring,
strlen(child->cy_valuestring));
if (rc != LUSTRE_CFG_RC_NO_ERR)
goto failed;
intf_num++;
child = child->cy_next;
}
if (intf_num == 0)
return LUSTRE_CFG_RC_MISSING_PARAM;
return intf_num;
failed:
list_for_each_entry_safe(intf_descr, tmp, &nw_descr->nw_intflist,
intf_on_network) {
list_del(&intf_descr->intf_on_network);
free_intf_descr(intf_descr);
}
return rc;
}
static bool
yaml_extract_cmn_tunables(struct cYAML *tree,
struct lnet_ioctl_config_lnd_cmn_tunables *tunables,
struct cfs_expr_list **global_cpts)
{
struct cYAML *tun, *item, *smp;
int rc;
tun = cYAML_get_object_item(tree, "tunables");
if (tun != NULL) {
item = cYAML_get_object_item(tun, "peer_timeout");
if (item != NULL)
tunables->lct_peer_timeout = item->cy_valueint;
item = cYAML_get_object_item(tun, "peer_credits");
if (item != NULL)
tunables->lct_peer_tx_credits = item->cy_valueint;
item = cYAML_get_object_item(tun, "peer_buffer_credits");
if (item != NULL)
tunables->lct_peer_rtr_credits = item->cy_valueint;
item = cYAML_get_object_item(tun, "credits");
if (item != NULL)
tunables->lct_max_tx_credits = item->cy_valueint;
smp = cYAML_get_object_item(tun, "CPT");
if (smp != NULL) {
rc = cfs_expr_list_parse(smp->cy_valuestring,
strlen(smp->cy_valuestring),
0, UINT_MAX, global_cpts);
if (rc != 0)
*global_cpts = NULL;
}
return true;
}
return false;
}
static bool
yaml_extract_tunables(struct cYAML *tree,
struct lnet_ioctl_config_lnd_tunables *tunables,
struct cfs_expr_list **global_cpts,
__u32 net_type)
{
bool rc;
rc = yaml_extract_cmn_tunables(tree, &tunables->lt_cmn,
global_cpts);
if (!rc)
return rc;
lustre_yaml_extract_lnd_tunables(tree, net_type,
&tunables->lt_tun);
return rc;
}
/*
* net:
* - net type: []
* local NI(s):
* - nid: @[]
* status: up
* interfaces:
* 0: ['['']']
* 1: ['['']']
* tunables:
* peer_timeout:
* peer_credits:
* peer_buffer_credits:
* credits:
* lnd tunables:
* peercredits_hiw:
* map_on_demand:
* concurrent_sends:
* fmr_pool_size:
* fmr_flush_trigger:
* fmr_cache:
*
* At least one interface is required. If no interfaces are provided the
* network interface can not be configured.
*/
static int handle_yaml_config_ni(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *net, *intf, *seq_no, *ip2net = NULL, *local_nis = NULL,
*item = NULL;
int num_entries = 0, rc;
struct lnet_dlc_network_descr nw_descr;
struct cfs_expr_list *global_cpts = NULL;
struct lnet_ioctl_config_lnd_tunables tunables;
bool found = false;
memset(&tunables, 0, sizeof(tunables));
INIT_LIST_HEAD(&nw_descr.network_on_rule);
INIT_LIST_HEAD(&nw_descr.nw_intflist);
ip2net = cYAML_get_object_item(tree, "ip2net");
net = cYAML_get_object_item(tree, "net type");
if (net)
nw_descr.nw_id = libcfs_str2net(net->cy_valuestring);
else
nw_descr.nw_id = LOLND;
/*
* if neither net nor ip2nets are present, then we can not
* configure the network.
*/
if (!net && !ip2net)
return LUSTRE_CFG_RC_MISSING_PARAM;
local_nis = cYAML_get_object_item(tree, "local NI(s)");
if (local_nis == NULL)
return LUSTRE_CFG_RC_MISSING_PARAM;
if (!cYAML_is_sequence(local_nis))
return LUSTRE_CFG_RC_BAD_PARAM;
while (cYAML_get_next_seq_item(local_nis, &item) != NULL) {
intf = cYAML_get_object_item(item, "interfaces");
if (intf == NULL)
continue;
num_entries = yaml_copy_intf_info(intf, &nw_descr);
if (num_entries <= 0) {
cYAML_build_error(num_entries, -1, "ni", "add",
"bad interface list",
err_rc);
return LUSTRE_CFG_RC_BAD_PARAM;
}
}
found = yaml_extract_tunables(tree, &tunables, &global_cpts,
LNET_NETTYP(nw_descr.nw_id));
seq_no = cYAML_get_object_item(tree, "seq_no");
rc = lustre_lnet_config_ni(&nw_descr,
global_cpts,
(ip2net) ? ip2net->cy_valuestring : NULL,
(found) ? &tunables: NULL,
(seq_no) ? seq_no->cy_valueint : -1,
err_rc);
if (global_cpts != NULL)
cfs_expr_list_free(global_cpts);
return rc;
}
/*
* ip2nets:
* - net-spec: [NUM]
* interfaces:
* 0: ['['']']
* 1: ['['']']
* ip-range:
* 0:
* 1:
*/
static int handle_yaml_config_ip2nets(struct cYAML *tree,
struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *net, *ip_range, *item = NULL, *intf = NULL,
*seq_no = NULL;
struct lustre_lnet_ip2nets ip2nets;
struct lustre_lnet_ip_range_descr *ip_range_descr = NULL,
*tmp = NULL;
int rc = LUSTRE_CFG_RC_NO_ERR;
struct cfs_expr_list *global_cpts = NULL;
struct cfs_expr_list *el, *el_tmp;
struct lnet_ioctl_config_lnd_tunables tunables;
struct lnet_dlc_intf_descr *intf_descr, *intf_tmp;
bool found = false;
memset(&tunables, 0, sizeof(tunables));
/* initialize all lists */
INIT_LIST_HEAD(&ip2nets.ip2nets_ip_ranges);
INIT_LIST_HEAD(&ip2nets.ip2nets_net.network_on_rule);
INIT_LIST_HEAD(&ip2nets.ip2nets_net.nw_intflist);
net = cYAML_get_object_item(tree, "net-spec");
if (net == NULL)
return LUSTRE_CFG_RC_BAD_PARAM;
if (net != NULL && net->cy_valuestring == NULL)
return LUSTRE_CFG_RC_BAD_PARAM;
/* assign the network id */
ip2nets.ip2nets_net.nw_id = libcfs_str2net(net->cy_valuestring);
if (ip2nets.ip2nets_net.nw_id == LNET_NID_ANY)
return LUSTRE_CFG_RC_BAD_PARAM;
seq_no = cYAML_get_object_item(tree, "seq_no");
intf = cYAML_get_object_item(tree, "interfaces");
if (intf != NULL) {
rc = yaml_copy_intf_info(intf, &ip2nets.ip2nets_net);
if (rc <= 0)
return LUSTRE_CFG_RC_BAD_PARAM;
}
ip_range = cYAML_get_object_item(tree, "ip-range");
if (ip_range != NULL) {
item = ip_range->cy_child;
while (item != NULL) {
if (item->cy_valuestring == NULL) {
item = item->cy_next;
continue;
}
rc = lustre_lnet_add_ip_range(&ip2nets.ip2nets_ip_ranges,
item->cy_valuestring);
if (rc != LUSTRE_CFG_RC_NO_ERR)
goto out;
item = item->cy_next;
}
}
found = yaml_extract_tunables(tree, &tunables, &global_cpts,
LNET_NETTYP(ip2nets.ip2nets_net.nw_id));
rc = lustre_lnet_config_ip2nets(&ip2nets,
(found) ? &tunables : NULL,
global_cpts,
(seq_no) ? seq_no->cy_valueint : -1,
err_rc);
/*
* don't stop because there was no match. Continue processing the
* rest of the rules. If non-match then nothing is configured
*/
if (rc == LUSTRE_CFG_RC_NO_MATCH)
rc = LUSTRE_CFG_RC_NO_ERR;
out:
list_for_each_entry_safe(intf_descr, intf_tmp,
&ip2nets.ip2nets_net.nw_intflist,
intf_on_network) {
list_del(&intf_descr->intf_on_network);
free_intf_descr(intf_descr);
}
list_for_each_entry_safe(ip_range_descr, tmp,
&ip2nets.ip2nets_ip_ranges,
ipr_entry) {
list_del(&ip_range_descr->ipr_entry);
list_for_each_entry_safe(el, el_tmp, &ip_range_descr->ipr_expr,
el_link) {
list_del(&el->el_link);
cfs_expr_list_free(el);
}
free(ip_range_descr);
}
return rc;
}
static int handle_yaml_del_ni(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *net = NULL, *intf = NULL, *seq_no = NULL, *item = NULL,
*local_nis = NULL;
int num_entries, rc;
struct lnet_dlc_network_descr nw_descr;
INIT_LIST_HEAD(&nw_descr.network_on_rule);
INIT_LIST_HEAD(&nw_descr.nw_intflist);
net = cYAML_get_object_item(tree, "net type");
if (net != NULL)
nw_descr.nw_id = libcfs_str2net(net->cy_valuestring);
local_nis = cYAML_get_object_item(tree, "local NI(s)");
if (local_nis == NULL)
return LUSTRE_CFG_RC_MISSING_PARAM;
if (!cYAML_is_sequence(local_nis))
return LUSTRE_CFG_RC_BAD_PARAM;
while (cYAML_get_next_seq_item(local_nis, &item) != NULL) {
intf = cYAML_get_object_item(item, "interfaces");
if (intf == NULL)
continue;
num_entries = yaml_copy_intf_info(intf, &nw_descr);
if (num_entries <= 0) {
cYAML_build_error(num_entries, -1, "ni", "add",
"bad interface list",
err_rc);
return LUSTRE_CFG_RC_BAD_PARAM;
}
}
seq_no = cYAML_get_object_item(tree, "seq_no");
rc = lustre_lnet_del_ni((net) ? &nw_descr : NULL,
(seq_no) ? seq_no->cy_valueint : -1,
err_rc);
return rc;
}
static int yaml_copy_peer_nids(struct cYAML *tree, char ***nidsppp, bool del)
{
struct cYAML *nids_entry = NULL, *child = NULL, *entry = NULL,
*prim_nid = NULL;
char **nids = NULL;
int num = 0, rc = LUSTRE_CFG_RC_NO_ERR;
prim_nid = cYAML_get_object_item(tree, "primary nid");
if (!prim_nid || !prim_nid->cy_valuestring)
return LUSTRE_CFG_RC_MISSING_PARAM;
nids_entry = cYAML_get_object_item(tree, "peer ni");
if (cYAML_is_sequence(nids_entry)) {
while (cYAML_get_next_seq_item(nids_entry, &child)) {
entry = cYAML_get_object_item(child, "nid");
/* don't count an empty entry */
if (!entry || !entry->cy_valuestring)
continue;
if ((strcmp(entry->cy_valuestring, prim_nid->cy_valuestring)
== 0) && del) {
/*
* primary nid is present in the list of
* nids so that means we want to delete
* the entire peer, so no need to go
* further. Just delete the entire peer.
*/
return 0;
}
num++;
}
}
if (num == 0)
return LUSTRE_CFG_RC_MISSING_PARAM;
nids = calloc(sizeof(*nids) * num, 1);
if (nids == NULL)
return LUSTRE_CFG_RC_OUT_OF_MEM;
/* now grab all the nids */
num = 0;
child = NULL;
while (cYAML_get_next_seq_item(nids_entry, &child)) {
entry = cYAML_get_object_item(child, "nid");
if (!entry || !entry->cy_valuestring)
continue;
nids[num] = calloc(strlen(entry->cy_valuestring) + 1, 1);
if (!nids[num]) {
rc = LUSTRE_CFG_RC_OUT_OF_MEM;
goto failed;
}
strncpy(nids[num], entry->cy_valuestring,
strlen(entry->cy_valuestring));
num++;
}
rc = num;
*nidsppp = nids;
return rc;
failed:
if (nids != NULL)
yaml_free_string_array(nids, num);
*nidsppp = NULL;
return rc;
}
static int handle_yaml_config_peer(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
char **nids = NULL;
int num, rc;
struct cYAML *seq_no, *prim_nid, *non_mr;
num = yaml_copy_peer_nids(tree, &nids, false);
if (num < 0)
return num;
seq_no = cYAML_get_object_item(tree, "seq_no");
prim_nid = cYAML_get_object_item(tree, "primary nid");
non_mr = cYAML_get_object_item(tree, "non_mr");
rc = lustre_lnet_config_peer_nid((prim_nid) ? prim_nid->cy_valuestring : NULL,
nids, num,
(non_mr) ? false : true,
(seq_no) ? seq_no->cy_valueint : -1,
err_rc);
yaml_free_string_array(nids, num);
return rc;
}
static int handle_yaml_del_peer(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
char **nids = NULL;
int num, rc;
struct cYAML *seq_no, *prim_nid;
num = yaml_copy_peer_nids(tree, &nids, true);
if (num < 0)
return num;
seq_no = cYAML_get_object_item(tree, "seq_no");
prim_nid = cYAML_get_object_item(tree, "primary nid");
rc = lustre_lnet_del_peer_nid((prim_nid) ? prim_nid->cy_valuestring : NULL,
nids, num,
(seq_no) ? seq_no->cy_valueint : -1,
err_rc);
yaml_free_string_array(nids, num);
return rc;
}
static int handle_yaml_config_buffers(struct cYAML *tree,
struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc;
struct cYAML *tiny, *small, *large, *seq_no;
tiny = cYAML_get_object_item(tree, "tiny");
small = cYAML_get_object_item(tree, "small");
large = cYAML_get_object_item(tree, "large");
seq_no = cYAML_get_object_item(tree, "seq_no");
rc = lustre_lnet_config_buffers((tiny) ? tiny->cy_valueint : -1,
(small) ? small->cy_valueint : -1,
(large) ? large->cy_valueint : -1,
(seq_no) ? seq_no->cy_valueint : -1,
err_rc);
return rc;
}
static int handle_yaml_config_routing(struct cYAML *tree,
struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
struct cYAML *seq_no, *enable;
seq_no = cYAML_get_object_item(tree, "seq_no");
enable = cYAML_get_object_item(tree, "enable");
if (enable) {
rc = lustre_lnet_enable_routing(enable->cy_valueint,
(seq_no) ?
seq_no->cy_valueint : -1,
err_rc);
}
return rc;
}
static int handle_yaml_del_route(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *net;
struct cYAML *gw;
struct cYAML *seq_no;
net = cYAML_get_object_item(tree, "net");
gw = cYAML_get_object_item(tree, "gateway");
seq_no = cYAML_get_object_item(tree, "seq_no");
return lustre_lnet_del_route((net) ? net->cy_valuestring : NULL,
(gw) ? gw->cy_valuestring : NULL,
(seq_no) ? seq_no->cy_valueint : -1,
err_rc);
}
static int handle_yaml_del_routing(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *seq_no;
seq_no = cYAML_get_object_item(tree, "seq_no");
return lustre_lnet_enable_routing(0, (seq_no) ?
seq_no->cy_valueint : -1,
err_rc);
}
static int handle_yaml_show_route(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *net;
struct cYAML *gw;
struct cYAML *hop;
struct cYAML *prio;
struct cYAML *detail;
struct cYAML *seq_no;
net = cYAML_get_object_item(tree, "net");
gw = cYAML_get_object_item(tree, "gateway");
hop = cYAML_get_object_item(tree, "hop");
prio = cYAML_get_object_item(tree, "priority");
detail = cYAML_get_object_item(tree, "detail");
seq_no = cYAML_get_object_item(tree, "seq_no");
return lustre_lnet_show_route((net) ? net->cy_valuestring : NULL,
(gw) ? gw->cy_valuestring : NULL,
(hop) ? hop->cy_valueint : -1,
(prio) ? prio->cy_valueint : -1,
(detail) ? detail->cy_valueint : 0,
(seq_no) ? seq_no->cy_valueint : -1,
show_rc,
err_rc);
}
static int handle_yaml_show_net(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *net, *detail, *seq_no;
net = cYAML_get_object_item(tree, "net");
detail = cYAML_get_object_item(tree, "detail");
seq_no = cYAML_get_object_item(tree, "seq_no");
return lustre_lnet_show_net((net) ? net->cy_valuestring : NULL,
(detail) ? detail->cy_valueint : 0,
(seq_no) ? seq_no->cy_valueint : -1,
show_rc,
err_rc);
}
static int handle_yaml_show_routing(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *seq_no;
seq_no = cYAML_get_object_item(tree, "seq_no");
return lustre_lnet_show_routing((seq_no) ? seq_no->cy_valueint : -1,
show_rc, err_rc);
}
static int handle_yaml_show_peers(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *seq_no, *nid, *detail;
seq_no = cYAML_get_object_item(tree, "seq_no");
detail = cYAML_get_object_item(tree, "detail");
nid = cYAML_get_object_item(tree, "nid");
return lustre_lnet_show_peer((nid) ? nid->cy_valuestring : NULL,
(detail) ? detail->cy_valueint : 0,
(seq_no) ? seq_no->cy_valueint : -1,
show_rc, err_rc);
}
static int handle_yaml_show_stats(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *seq_no;
seq_no = cYAML_get_object_item(tree, "seq_no");
return lustre_lnet_show_stats((seq_no) ? seq_no->cy_valueint : -1,
show_rc, err_rc);
}
static int handle_yaml_config_numa(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *seq_no, *range;
seq_no = cYAML_get_object_item(tree, "seq_no");
range = cYAML_get_object_item(tree, "range");
return lustre_lnet_config_numa_range(range ? range->cy_valueint : -1,
seq_no ? seq_no->cy_valueint : -1,
err_rc);
}
static int handle_yaml_del_numa(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *seq_no;
seq_no = cYAML_get_object_item(tree, "seq_no");
return lustre_lnet_config_numa_range(0, seq_no ? seq_no->cy_valueint : -1,
err_rc);
}
static int handle_yaml_show_numa(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *seq_no;
seq_no = cYAML_get_object_item(tree, "seq_no");
return lustre_lnet_show_numa_range(seq_no ? seq_no->cy_valueint : -1,
show_rc, err_rc);
}
struct lookup_cmd_hdlr_tbl {
char *name;
cmd_handler_t cb;
};
static struct lookup_cmd_hdlr_tbl lookup_config_tbl[] = {
{ .name = "route", .cb = handle_yaml_config_route },
{ .name = "net", .cb = handle_yaml_config_ni },
{ .name = "ip2nets", .cb = handle_yaml_config_ip2nets },
{ .name = "peer", .cb = handle_yaml_config_peer },
{ .name = "routing", .cb = handle_yaml_config_routing },
{ .name = "buffers", .cb = handle_yaml_config_buffers },
{ .name = "numa", .cb = handle_yaml_config_numa },
{ .name = NULL } };
static struct lookup_cmd_hdlr_tbl lookup_del_tbl[] = {
{ .name = "route", .cb = handle_yaml_del_route },
{ .name = "net", .cb = handle_yaml_del_ni },
{ .name = "peer", .cb = handle_yaml_del_peer },
{ .name = "routing", .cb = handle_yaml_del_routing },
{ .name = "numa", .cb = handle_yaml_del_numa },
{ .name = NULL } };
static struct lookup_cmd_hdlr_tbl lookup_show_tbl[] = {
{ .name = "route", .cb = handle_yaml_show_route },
{ .name = "net", .cb = handle_yaml_show_net },
{ .name = "buffers", .cb = handle_yaml_show_routing },
{ .name = "routing", .cb = handle_yaml_show_routing },
{ .name = "peer", .cb = handle_yaml_show_peers },
{ .name = "statistics", .cb = handle_yaml_show_stats },
{ .name = "numa", .cb = handle_yaml_show_numa },
{ .name = NULL } };
static cmd_handler_t lookup_fn(char *key,
struct lookup_cmd_hdlr_tbl *tbl)
{
int i;
if (key == NULL)
return NULL;
for (i = 0; tbl[i].name != NULL; i++) {
if (strncmp(key, tbl[i].name, strlen(tbl[i].name)) == 0)
return tbl[i].cb;
}
return NULL;
}
static int lustre_yaml_cb_helper(char *f, struct lookup_cmd_hdlr_tbl *table,
struct cYAML **show_rc, struct cYAML **err_rc)
{
struct cYAML *tree, *item = NULL, *head, *child;
cmd_handler_t cb;
char err_str[LNET_MAX_STR_LEN];
int rc = LUSTRE_CFG_RC_NO_ERR, return_rc = LUSTRE_CFG_RC_NO_ERR;
tree = cYAML_build_tree(f, NULL, 0, err_rc, false);
if (tree == NULL)
return LUSTRE_CFG_RC_BAD_PARAM;
child = tree->cy_child;
while (child != NULL) {
cb = lookup_fn(child->cy_string, table);
if (cb == NULL) {
snprintf(err_str, sizeof(err_str),
"\"call back for '%s' not found\"",
child->cy_string);
cYAML_build_error(LUSTRE_CFG_RC_BAD_PARAM, -1,
"yaml", "helper", err_str, err_rc);
goto out;
}
if (cYAML_is_sequence(child)) {
while ((head = cYAML_get_next_seq_item(child, &item))
!= NULL) {
rc = cb(head, show_rc, err_rc);
if (rc != LUSTRE_CFG_RC_NO_ERR)
return_rc = rc;
}
} else {
rc = cb(child, show_rc, err_rc);
if (rc != LUSTRE_CFG_RC_NO_ERR)
return_rc = rc;
}
item = NULL;
child = child->cy_next;
}
out:
cYAML_free_tree(tree);
return return_rc;
}
int lustre_yaml_config(char *f, struct cYAML **err_rc)
{
return lustre_yaml_cb_helper(f, lookup_config_tbl,
NULL, err_rc);
}
int lustre_yaml_del(char *f, struct cYAML **err_rc)
{
return lustre_yaml_cb_helper(f, lookup_del_tbl,
NULL, err_rc);
}
int lustre_yaml_show(char *f, struct cYAML **show_rc, struct cYAML **err_rc)
{
return lustre_yaml_cb_helper(f, lookup_show_tbl,
show_rc, err_rc);
}