Viewing: liblnetconfig.c
// SPDX-License-Identifier: LGPL-2.1+
/*
* Copyright (c) 2014, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* 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
*
* Author: Amir Shehata <amir.shehata@intel.com>
*/
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <byteswap.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <libcfs/util/ioctl.h>
#include <libcfs/util/hash.h>
#include <linux/lnet/lnetctl.h>
#include "liblnd.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <ifaddrs.h>
#include <rdma/rdma_user_cm.h>
#include "liblnetconfig.h"
#include <glob.h>
#include <libcfs/util/param.h>
#include <dirent.h>
const char *gmsg_stat_names[] = {"sent_stats", "received_stats",
"dropped_stats"};
static int open_sysfs_file(const char *path, const char *attr, const int mode)
{
int fd;
char filename[LNET_MAX_STR_LEN];
size_t size = sizeof(filename);
int namelen;
namelen = snprintf(filename, size, "%s%s", path, attr);
if (namelen >= size)
filename[size - 1] = '\0';
fd = open(filename, mode);
return fd;
}
static int read_sysfs_file(const char *path, const char *attr,
void *val, const size_t size, const int nelem)
{
int fd;
int rc = LUSTRE_CFG_RC_GENERIC_ERR;
fd = open_sysfs_file(path, attr, O_RDONLY);
if (fd == -1)
return LUSTRE_CFG_RC_NO_MATCH;
if (read(fd, val, size * nelem) == -1)
goto close_fd;
rc = LUSTRE_CFG_RC_NO_ERR;
close_fd:
close(fd);
return rc;
}
static int write_sysfs_file(const char *path, const char *attr,
void *val, const size_t size, const int nelem)
{
int fd;
int rc = LUSTRE_CFG_RC_GENERIC_ERR;
fd = open_sysfs_file(path, attr, O_WRONLY | O_TRUNC);
if (fd == -1)
return LUSTRE_CFG_RC_NO_MATCH;
if (write(fd, val, size * nelem) == -1)
goto close_fd;
rc = LUSTRE_CFG_RC_NO_ERR;
close_fd:
close(fd);
return rc;
}
/*
* 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:
* <expr.expr.expr.expr> parse each expr into
* a lustre_lnet_ip_range_descr structure and insert on the list.
* For IPv6: <ipv6_addr>[/<prefix>] parse as single address or CIDR
*
* 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);
/* Check if this is an IPv6 address by looking for ':' */
if (strchr(str_ip_range, ':') != NULL) {
char *addrstr;
char *slash;
__u32 addr[4];
size_t asize = 0;
int i, j;
ip_range->ipr_is_ipv6 = true;
/* Make a copy since strsep modifies the string */
addrstr = strdup(str_ip_range);
if (!addrstr) {
free(ip_range);
return LUSTRE_CFG_RC_OUT_OF_MEM;
}
/* Parse prefix length if present */
slash = strchr(addrstr, '/');
if (slash) {
unsigned int prefix_len;
*slash = '\0';
slash++;
if (!cfs_str2num_check(slash, strlen(slash),
&prefix_len, 1, 128)) {
free(addrstr);
free(ip_range);
return LUSTRE_CFG_RC_BAD_PARAM;
}
ip_range->ipr_prefix_len = (__u8)prefix_len;
} else {
/* No prefix length means single host (/128) */
ip_range->ipr_prefix_len = 128;
}
/* Parse IPv6 address */
if (!libcfs_ip_str2addr_size(addrstr, strlen(addrstr),
(__be32 *)addr, &asize) ||
asize != 16) {
free(addrstr);
free(ip_range);
return LUSTRE_CFG_RC_BAD_PARAM;
}
/* Store the parsed address */
memcpy(&ip_range->ipr_addr.ipv6, addr, sizeof(struct in6_addr));
/* Calculate netmask and network address */
memset(&ip_range->ipr_netmask.ipv6, 0,
sizeof(struct in6_addr));
for (i = ip_range->ipr_prefix_len, j = 0; i > 0; i -= 8, j++) {
if (i >= 8)
ip_range->ipr_netmask.ipv6.s6_addr[j] = 0xff;
else
ip_range->ipr_netmask.ipv6.s6_addr[j] =
(unsigned long)(0xffU << (8 - i));
}
for (i = 0; i < sizeof(struct in6_addr); i++)
ip_range->ipr_netaddr.ipv6.s6_addr[i] =
ip_range->ipr_addr.ipv6.s6_addr[i] &
ip_range->ipr_netmask.ipv6.s6_addr[i];
free(addrstr);
} else {
/* Parse IPv4 address */
ip_range->ipr_is_ipv6 = false;
rc = cfs_ip_addr_parse(str_ip_range, strlen(str_ip_range),
&ip_range->ipr_expr);
if (rc != 0) {
free(ip_range);
return LUSTRE_CFG_RC_BAD_PARAM;
}
}
list_add_tail(&ip_range->ipr_entry, list);
return LUSTRE_CFG_RC_NO_ERR;
}
/*
* lustre_lnet_match_ipv6_netmask
* Checks if an IPv6 address matches a netmask/network address.
*
* \retval true if the address matches the network
* \retval false otherwise
*/
static bool
lustre_lnet_match_ipv6_netmask(const struct in6_addr *addr,
const struct in6_addr *netmask,
const struct in6_addr *netaddr)
{
int i;
for (i = 0; i < sizeof(struct in6_addr); i++) {
if ((addr->s6_addr[i] & netmask->s6_addr[i]) !=
netaddr->s6_addr[i])
return false;
}
return true;
}
/*
* ip_addr_in_range
* Check if an IPv4 or IPv6 address matches any IP range in the list.
*
* \param[in] ifaddr The interface address to check
* \param[in] ip_ranges List of IP ranges to match against
*
* \retval true if the address matches any range
* \retval false if no match found
*/
static bool
ip_addr_in_range(struct ifaddrs *ifaddr, struct list_head *ip_ranges)
{
struct lustre_lnet_ip_range_descr *ip_range;
int family = ifaddr->ifa_addr->sa_family;
int rc;
if (family == AF_INET) {
__u32 ip = ((struct sockaddr_in *)
ifaddr->ifa_addr)->sin_addr.s_addr;
list_for_each_entry(ip_range, ip_ranges, ipr_entry) {
if (ip_range->ipr_is_ipv6)
continue;
rc = cfs_ip_addr_match(bswap_32(ip),
&ip_range->ipr_expr);
if (rc)
return true;
}
} else if (family == AF_INET6) {
struct in6_addr *ipv6 = &((struct sockaddr_in6 *)
ifaddr->ifa_addr)->sin6_addr;
list_for_each_entry(ip_range, ip_ranges, ipr_entry) {
if (!ip_range->ipr_is_ipv6)
continue;
if (lustre_lnet_match_ipv6_netmask(ipv6,
&ip_range->ipr_netmask.ipv6,
&ip_range->ipr_netaddr.ipv6))
return true;
}
}
return false;
}
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;
}
if ((open_sq_bracket - intf_name) >=
sizeof(intf_descr->intf_name)) {
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 {
if (strlen(intf_name) >= sizeof(intf_descr->intf_name)) {
free(intf_descr);
return LUSTRE_CFG_RC_BAD_PARAM;
}
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) {
nw_descr->nw_id = 0;
INIT_LIST_HEAD(&nw_descr->network_on_rule);
INIT_LIST_HEAD(&nw_descr->nw_intflist);
}
}
int lustre_lnet_debug_nidlist(char *nidstr, char *match_nid)
{
struct list_head nidlist;
int rc;
char *buf = NULL;
size_t bsize = strlen(nidstr) + 1;
buf = malloc(bsize);
if (!buf) {
fprintf(stderr, "Cannot allocate memory for buffer\n");
return -ENOMEM;
}
INIT_LIST_HEAD(&nidlist);
rc = cfs_parse_nidlist(nidstr, strlen(nidstr), &nidlist);
if (!rc) {
fprintf(stderr, "Unable to parse nidlist from: %s\n", nidstr);
goto failed;
}
if (cfs_print_nidlist(buf, bsize, &nidlist))
printf("nidlist parsed to: %s\n", buf);
if (match_nid) {
struct lnet_nid nid;
rc = libcfs_strnid(&nid, match_nid);
if (rc < 0) {
fprintf(stderr, "Invalid nid for matching %s\n",
match_nid);
goto failed;
}
rc = cfs_match_nid(&nid, &nidlist);
if (rc)
printf("%s matches nidlist %s\n", match_nid, nidstr);
else
printf("%s does not match nidlist %s\n", match_nid,
nidstr);
}
cfs_free_nidlist(&nidlist);
free(buf);
return 0;
failed:
cfs_free_nidlist(&nidlist);
if (buf)
free(buf);
return LUSTRE_CFG_RC_BAD_PARAM;
}
int lustre_lnet_parse_nidstr(char *nidstr, lnet_nid_t *lnet_nidlist,
int max_nids, char *err_str)
{
int num_nids = 0;
struct list_head nidlist;
if (!nidstr) {
snprintf(err_str, LNET_MAX_STR_LEN, "supplied nidstr is NULL");
return LUSTRE_CFG_RC_BAD_PARAM;
}
if (strchr(nidstr, '*')) {
snprintf(err_str, LNET_MAX_STR_LEN,
"asterisk not allowed in nidstring '%s'", nidstr);
return LUSTRE_CFG_RC_BAD_PARAM;
}
INIT_LIST_HEAD(&nidlist);
if (!cfs_parse_nidlist(nidstr, strlen(nidstr), &nidlist)) {
snprintf(err_str, LNET_MAX_STR_LEN,
"\"Unable to parse nidlist from: %s\"", nidstr);
return LUSTRE_CFG_RC_BAD_PARAM;
}
num_nids = cfs_expand_nidlist(&nidlist, lnet_nidlist, max_nids);
cfs_free_nidlist(&nidlist);
if (num_nids == -1) {
snprintf(err_str, LNET_MAX_STR_LEN,
"\"'%s' specifies more than the %d NIDs allowed by this operation\"",
nidstr, max_nids);
return LUSTRE_CFG_RC_BAD_PARAM;
}
if (num_nids < 0) {
snprintf(err_str, LNET_MAX_STR_LEN,
"\"Failed to expand nidstr: %s\"", strerror(num_nids));
return LUSTRE_CFG_RC_OUT_OF_MEM;
}
if (num_nids == 0) {
snprintf(err_str, LNET_MAX_STR_LEN,
"\"'%s' did not expand to any nids\"", nidstr);
return LUSTRE_CFG_RC_BAD_PARAM;
}
return num_nids;
}
/*
* format expected:
* <intf>[<expr>], <intf>[<expr>],..
*/
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) {
char *net;
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;
}
}
/* Extract net id if its a NID string */
net = strchr(cur, '@');
if (net)
nw_descr->nw_id = libcfs_str2net(net + 1);
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 yaml_netlink_setup_emitter(yaml_emitter_t *output, struct nl_sock *sk,
char *family, int version, int flags, int op,
bool stream)
{
yaml_event_t hdr;
int rc;
rc = yaml_emitter_initialize(output);
if (rc == 0)
goto emitter_error;
rc = yaml_emitter_set_streaming_output_netlink(output, sk, family,
version, op, flags,
stream);
if (rc == 0)
goto emitter_error;
yaml_emitter_open(output);
yaml_document_start_event_initialize(&hdr, NULL, NULL, NULL, 0);
rc = yaml_emitter_emit(output, &hdr);
if (rc == 0)
goto emitter_error;
yaml_mapping_start_event_initialize(&hdr, NULL,
(yaml_char_t *)YAML_MAP_TAG,
1, YAML_BLOCK_MAPPING_STYLE);
rc = yaml_emitter_emit(output, &hdr);
emitter_error:
return rc;
}
int yaml_netlink_complete_emitter(yaml_emitter_t *output)
{
yaml_event_t hdr;
int rc;
yaml_mapping_end_event_initialize(&hdr);
rc = yaml_emitter_emit(output, &hdr);
if (rc == 0)
goto emitter_error;
yaml_document_end_event_initialize(&hdr, 0);
rc = yaml_emitter_emit(output, &hdr);
if (rc == 0)
goto emitter_error;
rc = yaml_emitter_close(output);
if (rc == 0)
goto emitter_error;
yaml_emitter_cleanup(output);
emitter_error:
return rc;
}
int lustre_lnet_config_lib_init(void)
{
return llapi_register_ioc_dev(LNET_DEV_ID, LNET_DEV_PATH);
}
void lustre_lnet_config_lib_uninit(void)
{
llapi_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] = "\"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 yaml_lnet_configure(int flags, const char **msg)
{
char *err = "lnet configure: ";
yaml_parser_t setup, reply;
char *config = "net:\n";
yaml_document_t results;
yaml_emitter_t request;
struct nl_sock *sk;
int rc;
/* Initialize configuration parser */
rc = yaml_parser_initialize(&setup);
if (rc == 0) {
yaml_parser_log_error(&setup, stderr, err);
yaml_parser_delete(&setup);
return -EOPNOTSUPP;
}
yaml_parser_set_input_string(&setup, (unsigned char *)config,
strlen(config));
rc = yaml_parser_load(&setup, &results);
if (rc == 0) {
yaml_parser_log_error(&setup, stderr, err);
yaml_parser_delete(&setup);
return -EOPNOTSUPP;
}
yaml_parser_delete(&setup);
/* Create Netlink emitter to send request to kernel */
sk = nl_socket_alloc();
if (!sk) {
yaml_document_delete(&results);
return -EOPNOTSUPP;
}
/* Setup parser to recieve Netlink packets */
rc = yaml_parser_initialize(&reply);
if (rc == 0) {
yaml_document_delete(&results);
nl_socket_free(sk);
return -EOPNOTSUPP;
}
rc = yaml_parser_set_input_netlink(&reply, sk, false);
if (rc == 0)
goto free_reply;
yaml_emitter_initialize(&request);
rc = yaml_emitter_set_output_netlink(&request, sk, LNET_GENL_NAME,
LNET_GENL_VERSION,
LNET_CMD_CONFIGURE, flags);
if (rc == 1) /* 1 is success */
rc = yaml_emitter_dump(&request, &results);
if (rc == 0) {
yaml_emitter_log_error(&request, stderr);
rc = -EINVAL;
} else {
yaml_document_t errmsg;
rc = yaml_parser_load(&reply, &errmsg);
}
yaml_emitter_cleanup(&request);
free_reply:
if (rc == 0) {
*msg = yaml_parser_get_reader_error(&reply);
rc = errno;
}
yaml_parser_cleanup(&reply);
yaml_document_delete(&results);
nl_socket_free(sk);
return rc == 1 ? 0 : rc;
}
static int
fault_attr_parse_nid(char *str, struct lnet_nid *nid)
{
int rc = 0;
__u32 net;
if (!str) {
*nid = LNET_ANY_NID;
return 0;
}
if (strlen(str) > 2 && str[0] == '*' && str[1] == '@') {
net = libcfs_str2net(str + 2);
if (net == LNET_NET_ANY) {
rc = -EINVAL;
goto failed;
}
lnet_nid4_to_nid(LNET_MKNID(net, LNET_NIDADDR(LNET_NID_ANY)),
nid);
} else {
rc = libcfs_stranynid(nid, str);
if (rc != 1)
rc = -EINVAL;
}
failed:
if (rc < 0)
fprintf(stderr, "Invalid NID: %s\n", str);
return rc;
}
static char *
fault_opc_to_str(__u32 opc)
{
switch (opc) {
case LNET_CTL_DROP_ADD:
return "add drop rule";
case LNET_CTL_DELAY_ADD:
return "add delay rule";
case LNET_CTL_DROP_LIST:
return "list drop rule";
case LNET_CTL_DELAY_LIST:
return "list delay rules";
case LNET_CTL_DROP_DEL:
return "delete drop rule";
case LNET_CTL_DELAY_DEL:
return "delete delay rule";
case LNET_CTL_DROP_RESET:
return "drop_reset rule";
case LNET_CTL_DELAY_RESET:
return "delay reset_rule";
default:
return "unrecognized command";
}
}
int yaml_lnet_fault_rule(yaml_document_t *results, __u32 opc, char *src,
char *dst, char *local_nid,
struct lnet_fault_attr *attr)
{
struct nl_sock *sk = NULL;
struct lnet_nid fa_local_nid;
struct lnet_nid fa_src;
struct lnet_nid fa_dst;
const char *msg = NULL;
yaml_emitter_t output;
yaml_parser_t reply;
yaml_event_t event;
int flags, rc;
switch (opc) {
case LNET_CTL_DROP_ADD:
case LNET_CTL_DELAY_ADD:
flags = NLM_F_CREATE;
break;
case LNET_CTL_DROP_RESET:
case LNET_CTL_DELAY_RESET:
flags = NLM_F_REPLACE;
break;
case LNET_CTL_DROP_LIST:
case LNET_CTL_DELAY_LIST:
flags = NLM_F_DUMP;
break;
case LNET_CTL_DROP_DEL:
case LNET_CTL_DELAY_DEL:
default:
flags = 0;
break;
}
if (opc == LNET_CTL_DROP_LIST || opc == LNET_CTL_DELAY_LIST ||
opc == LNET_CTL_DROP_RESET || opc == LNET_CTL_DELAY_RESET)
goto skip_options;
rc = fault_attr_parse_nid(src, &fa_src);
if (rc < 0)
return rc;
rc = fault_attr_parse_nid(dst, &fa_dst);
if (rc < 0)
return rc;
rc = fault_attr_parse_nid(local_nid, &fa_local_nid);
if (rc < 0)
return rc;
skip_options:
/* Create Netlink emitter to send request to kernel */
sk = nl_socket_alloc();
if (!sk)
return -EOPNOTSUPP;
/* Setup parser to receive Netlink packets */
rc = yaml_parser_initialize(&reply);
if (rc == 0) {
nl_socket_free(sk);
return -EOPNOTSUPP;
}
rc = yaml_parser_set_input_netlink(&reply, sk, false);
if (rc == 0)
goto free_reply;
rc = yaml_netlink_setup_emitter(&output, sk, LNET_GENL_NAME,
LNET_GENL_VERSION, flags,
LNET_CMD_FAULT, false);
if (rc == 0)
goto emitter_error;
yaml_scalar_event_initialize(&event, NULL,
(yaml_char_t *)YAML_STR_TAG,
(yaml_char_t *)"fault",
strlen("fault"), 1, 0,
YAML_PLAIN_SCALAR_STYLE);
rc = yaml_emitter_emit(&output, &event);
if (rc == 0)
goto emitter_error;
yaml_mapping_start_event_initialize(&event, NULL,
(yaml_char_t *)YAML_MAP_TAG,
1, YAML_ANY_MAPPING_STYLE);
rc = yaml_emitter_emit(&output, &event);
if (rc == 0)
goto emitter_error;
rc = lnet_yaml_uint_mapping(&event, &output, "rule_type", &opc,
sizeof(__u32));
if (rc == 0)
goto emitter_error;
if (opc == LNET_CTL_DROP_LIST || opc == LNET_CTL_DELAY_LIST ||
opc == LNET_CTL_DROP_RESET || opc == LNET_CTL_DELAY_RESET)
goto yaml_mapping_end_event;
rc = lnet_yaml_str_mapping(&event, &output, "fa_src",
libcfs_nidstr(&fa_src));
if (rc == 0)
goto emitter_error;
rc = lnet_yaml_str_mapping(&event, &output, "fa_dst",
libcfs_nidstr(&fa_dst));
if (rc == 0)
goto emitter_error;
if (opc == LNET_CTL_DROP_DEL || opc == LNET_CTL_DELAY_DEL)
goto yaml_mapping_end_event;
rc = lnet_yaml_str_mapping(&event, &output, "fa_local_nid",
libcfs_nidstr(&fa_local_nid));
if (rc == 0)
goto emitter_error;
if (attr == NULL)
goto yaml_mapping_end_event;
rc = lnet_yaml_uint_mapping(&event, &output, "fa_ptl_mask",
&attr->fa_ptl_mask,
sizeof(attr->fa_ptl_mask));
if (rc == 0)
goto emitter_error;
rc = lnet_yaml_uint_mapping(&event, &output, "fa_msg_mask",
&attr->fa_msg_mask,
sizeof(attr->fa_msg_mask));
if (rc == 0)
goto emitter_error;
if (opc == LNET_CTL_DROP_ADD) {
rc = lnet_yaml_uint_mapping(&event, &output, "da_rate",
&attr->u.drop.da_rate,
sizeof(attr->u.drop.da_rate));
if (rc == 0)
goto emitter_error;
rc = lnet_yaml_uint_mapping(&event, &output, "da_interval",
&attr->u.drop.da_interval,
sizeof(attr->u.drop.da_interval));
if (rc == 0)
goto emitter_error;
rc = lnet_yaml_uint_mapping(&event, &output,
"da_health_error_mask",
&attr->u.drop.da_health_error_mask,
sizeof(attr->u.drop.da_health_error_mask));
if (rc == 0)
goto emitter_error;
rc = lnet_yaml_bool_mapping(&event, &output, "da_random",
attr->u.drop.da_random ? "True" :
"False");
if (rc == 0)
goto emitter_error;
rc = lnet_yaml_bool_mapping(&event, &output, "da_drop_all",
attr->u.drop.da_drop_all ? "True" :
"False");
if (rc == 0)
goto emitter_error;
} else if (opc == LNET_CTL_DELAY_ADD) {
rc = lnet_yaml_uint_mapping(&event, &output, "la_rate",
&attr->u.delay.la_rate,
sizeof(attr->u.delay.la_rate));
if (rc == 0)
goto emitter_error;
rc = lnet_yaml_uint_mapping(&event, &output, "la_interval",
&attr->u.delay.la_interval,
sizeof(attr->u.delay.la_interval));
if (rc == 0)
goto emitter_error;
rc = lnet_yaml_uint_mapping(&event, &output, "la_latency",
&attr->u.delay.la_latency,
sizeof(attr->u.delay.la_latency));
if (rc == 0)
goto emitter_error;
}
yaml_mapping_end_event:
yaml_mapping_end_event_initialize(&event);
rc = yaml_emitter_emit(&output, &event);
if (rc == 0)
goto emitter_error;
rc = yaml_netlink_complete_emitter(&output);
emitter_error:
if (rc == 0) {
yaml_emitter_log_error(&output, stderr);
rc = -EINVAL;
} else {
rc = yaml_parser_load(&reply, results);
if (rc == 0) {
msg = yaml_parser_get_reader_error(&reply);
/* dump routine returns ENOENT if the rule list is
* empty. This is not an error condition.
*/
if (errno == -ENOENT && (flags & NLM_F_DUMP))
rc = 1;
}
}
yaml_emitter_cleanup(&output);
free_reply:
if (rc == 0) {
if (!msg)
msg = yaml_parser_get_reader_error(&reply);
if (strcmp(msg, "Unspecific failure") != 0) {
fprintf(stdout, "failed to %s: %s\n",
fault_opc_to_str(opc), msg);
} else {
fprintf(stdout, "failed to %s: %s\n",
fault_opc_to_str(opc), strerror(errno));
}
rc = errno;
}
yaml_parser_cleanup(&reply);
nl_socket_free(sk);
return rc == 1 ? 0 : rc;
}
static int dispatch_peer_ni_cmd(__u32 cmd, struct lnet_ioctl_peer_cfg *data,
char *err_str, char *cmd_str)
{
int rc;
rc = l_ioctl(LNET_DEV_ID, cmd, data);
if (rc) {
rc = -errno;
snprintf(err_str, LNET_MAX_STR_LEN,
"\"%s peer ni operation failed: %s\"",
cmd_str, strerror(errno));
}
return rc;
}
static int infra_ping_nid(char *ping_nids, char *src_nidstr, char *oper,
int param, int ioc_call, int seq_no,
struct cYAML **show_rc, struct cYAML **err_rc)
{
void *data = NULL;
struct lnet_ioctl_ping_data ping;
struct cYAML *root = NULL, *ping_node = NULL, *item = NULL,
*first_seq = NULL, *tmp = NULL, *peer_ni = NULL;
struct lnet_process_id id;
char err_str[LNET_MAX_STR_LEN] = {0};
char *sep, *token, *end;
char buf[6];
size_t len;
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
int i;
bool flag = false;
lnet_nid_t src;
len = (sizeof(struct lnet_process_id) * LNET_INTERFACES_MAX_DEFAULT);
data = calloc(1, len);
if (data == NULL)
goto out;
/* create struct cYAML root object */
root = cYAML_create_object(NULL, NULL);
if (root == NULL)
goto out;
ping_node = cYAML_create_seq(root, oper);
if (ping_node == NULL)
goto out;
if (src_nidstr) {
src = libcfs_str2nid(src_nidstr);
if (src == LNET_NID_ANY) {
snprintf(err_str, sizeof(err_str),
"\"cannot parse source NID '%s'\"",
src_nidstr);
rc = LUSTRE_CFG_RC_BAD_PARAM;
cYAML_build_error(rc, seq_no, MANAGE_CMD,
oper, err_str, err_rc);
goto out;
}
} else {
src = LNET_NID_ANY;
}
/* tokenise each nid in string ping_nids */
token = strtok(ping_nids, ",");
do {
item = cYAML_create_seq_item(ping_node);
if (item == NULL)
goto out;
if (first_seq == NULL)
first_seq = item;
/* check if '-' is a part of NID, token */
if (token != NULL)
sep = strchr(token, '-');
else
sep = NULL;
if (sep == NULL) {
if (token == NULL)
id.nid = LNET_NID_ANY;
else
/* if no net is specified,
* libcfs_str2nid() will assume tcp
*/
id.nid = libcfs_str2nid(token);
id.pid = LNET_PID_ANY;
if (id.nid == LNET_NID_ANY) {
snprintf(err_str, sizeof(err_str),
"\"cannot parse NID '%s'\"",
token ? token : "NULL");
rc = LUSTRE_CFG_RC_BAD_PARAM;
cYAML_build_error(rc, seq_no, MANAGE_CMD,
oper, err_str, err_rc);
continue;
}
} else {
if (token[0] == 'u' || token[0] == 'U')
id.pid = (strtoul(&token[1], &end, 0) |
(LNET_PID_USERFLAG));
else
id.pid = strtoul(token, &end, 0);
/* assuming '-' is part of hostname */
if (end != sep) {
id.pid = LNET_PID_ANY;
id.nid = libcfs_str2nid(token);
if (id.nid == LNET_NID_ANY) {
snprintf(err_str, sizeof(err_str),
"\"cannot parse NID '%s'\"",
token);
rc = LUSTRE_CFG_RC_BAD_PARAM;
cYAML_build_error(rc, seq_no, MANAGE_CMD,
oper, err_str,
err_rc);
continue;
}
} else {
id.nid = libcfs_str2nid(sep + 1);
if (id.nid == LNET_NID_ANY) {
snprintf(err_str, sizeof(err_str),
"\"cannot parse NID '%s'\"",
token);
rc = LUSTRE_CFG_RC_BAD_PARAM;
cYAML_build_error(rc, seq_no, MANAGE_CMD,
oper, err_str,
err_rc);
continue;
}
}
}
LIBCFS_IOC_INIT_V2(ping, ping_hdr);
ping.ping_hdr.ioc_len = sizeof(ping);
ping.ping_id = id;
ping.ping_src = src;
ping.op_param = param;
ping.ping_count = LNET_INTERFACES_MAX_DEFAULT;
ping.ping_buf = data;
rc = l_ioctl(LNET_DEV_ID, ioc_call, &ping);
if (rc != 0) {
snprintf(err_str,
sizeof(err_str),
"\"failed to %s %s: %s\"",
oper,
id.pid == LNET_PID_ANY ?
libcfs_nid2str(id.nid) :
libcfs_id2str(id), strerror(errno));
rc = LUSTRE_CFG_RC_BAD_PARAM;
cYAML_build_error(rc, seq_no, MANAGE_CMD,
oper, err_str, err_rc);
continue;
}
if (cYAML_create_string(item, "primary nid",
libcfs_nid2str(ping.ping_id.nid)) == NULL)
goto out;
if (cYAML_create_string(item, "Multi-Rail", ping.mr_info ?
"True" : "False") == NULL)
goto out;
tmp = cYAML_create_seq(item, "peer ni");
if (tmp == NULL)
goto out;
for (i = 0; i < ping.ping_count; i++) {
if (ping.ping_buf[i].nid == LNET_NID_LO_0)
continue;
peer_ni = cYAML_create_seq_item(tmp);
if (peer_ni == NULL)
goto out;
memset(buf, 0, sizeof buf);
snprintf(buf, sizeof buf, "nid");
if (cYAML_create_string(peer_ni, buf,
libcfs_nid2str(ping.ping_buf[i].nid)) == NULL)
goto out;
}
flag = true;
} while ((token = strtok(NULL, ",")) != NULL);
if (flag)
rc = LUSTRE_CFG_RC_NO_ERR;
out:
if (data)
free(data);
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;
show_node = cYAML_get_object_item(*show_rc, oper);
if (show_node != NULL && cYAML_is_sequence(show_node)) {
cYAML_insert_child(show_node, first_seq);
free(ping_node);
free(root);
} else if (show_node == NULL) {
cYAML_insert_sibling((*show_rc)->cy_child,
ping_node);
free(root);
} else {
cYAML_free_tree(root);
}
} else {
*show_rc = root;
}
return rc;
}
int lustre_lnet_ping_nid(char *ping_nids, char *src_nidstr, int timeout,
int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc;
rc = infra_ping_nid(ping_nids, src_nidstr, "ping", timeout,
IOC_LIBCFS_PING_PEER, seq_no, show_rc, err_rc);
return rc;
}
int lustre_lnet_discover_nid(char *ping_nids, int force, int seq_no,
struct cYAML **show_rc, struct cYAML **err_rc)
{
int rc;
rc = infra_ping_nid(ping_nids, NULL, "discover", force,
IOC_LIBCFS_DISCOVER, seq_no, show_rc, err_rc);
return rc;
}
static int lustre_lnet_handle_peer_nidlist(lnet_nid_t *nidlist, int num_nids,
bool is_mr, int option, __u32 cmd,
char *cmd_type, char *err_str)
{
struct lnet_ioctl_peer_cfg data;
int rc, nid_idx;
if (cmd == IOC_LIBCFS_ADD_PEER_NI) {
/* When adding a peer we first need to create the peer using the
* specified (or implied) primary nid. Then we can add
* additional nids to this peer using the primary nid as a key
*/
LIBCFS_IOC_INIT_V2(data, prcfg_hdr);
data.prcfg_mr = is_mr;
data.prcfg_prim_nid = nidlist[0];
data.prcfg_cfg_nid = LNET_NID_ANY;
data.prcfg_count = option;
rc = dispatch_peer_ni_cmd(cmd, &data, err_str, cmd_type);
if (rc)
return rc;
}
/* Add or delete any specified NIs associated with the specified
* (or implied) primary nid
*/
for (nid_idx = 1; nid_idx < num_nids; nid_idx++) {
LIBCFS_IOC_INIT_V2(data, prcfg_hdr);
data.prcfg_mr = is_mr;
data.prcfg_prim_nid = nidlist[0];
data.prcfg_cfg_nid = nidlist[nid_idx];
data.prcfg_count = option;
rc = dispatch_peer_ni_cmd(cmd, &data, err_str, cmd_type);
if (rc)
return rc;
}
if (cmd == IOC_LIBCFS_DEL_PEER_NI && num_nids == 1) {
/* In the delete case we may have been given just the
* primary nid of the peer. This tells us to delete the peer
* completely (rather than just delete some of its NIs)
*/
LIBCFS_IOC_INIT_V2(data, prcfg_hdr);
data.prcfg_prim_nid = nidlist[0];
data.prcfg_cfg_nid = LNET_NID_ANY;
data.prcfg_count = option;
rc = dispatch_peer_ni_cmd(cmd, &data, err_str, cmd_type);
}
return rc;
}
static int
lustre_lnet_mod_peer_nidlist(lnet_nid_t pnid, lnet_nid_t *lnet_nidlist,
int cmd, int num_nids, bool is_mr, int option,
int seq_no, struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN];
lnet_nid_t *lnet_nidlist2 = NULL;
int ioc_cmd = (cmd == LNETCTL_ADD_CMD) ? IOC_LIBCFS_ADD_PEER_NI :
IOC_LIBCFS_DEL_PEER_NI;
char *cmd_str = (cmd == LNETCTL_ADD_CMD) ? ADD_CMD : DEL_CMD;
num_nids++;
lnet_nidlist2 = calloc(sizeof(*lnet_nidlist2), num_nids);
if (!lnet_nidlist2) {
snprintf(err_str, LNET_MAX_STR_LEN, "out of memory");
rc = LUSTRE_CFG_RC_OUT_OF_MEM;
goto out;
}
lnet_nidlist2[0] = pnid;
memcpy(&lnet_nidlist2[1], lnet_nidlist, sizeof(*lnet_nidlist) *
(num_nids - 1));
rc = lustre_lnet_handle_peer_nidlist(lnet_nidlist2,
num_nids, is_mr, option,
ioc_cmd, cmd_str, err_str);
out:
if (lnet_nidlist2)
free(lnet_nidlist2);
cYAML_build_error(rc, seq_no, cmd_str, "peer_ni", err_str, err_rc);
return rc;
}
static void
replace_sep(char *str, char sep, char newsep)
{
int bracket = 0;
int i;
if (!str)
return;
for (i = 0; i < strlen(str); i++) {
/* don't replace ',' within [] */
if (str[i] == '[')
bracket++;
else if (str[i] == ']')
bracket--;
else if (str[i] == sep && bracket == 0)
str[i] = newsep;
}
}
int lustre_lnet_modify_peer(char *prim_nid, char *nids, bool is_mr, int cmd,
int option, int seq_no, struct cYAML **err_rc)
{
int num_nids, rc;
char err_str[LNET_MAX_STR_LEN] = "Error";
lnet_nid_t lnet_nidlist[LNET_MAX_NIDS_PER_PEER] = {0};
lnet_nid_t pnid = LNET_NID_ANY;
if (!prim_nid) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, LNET_MAX_STR_LEN,
"--prim_nid must be specified");
goto out;
}
pnid = libcfs_str2nid(prim_nid);
if (pnid == LNET_NID_ANY) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, LNET_MAX_STR_LEN,
"\"badly formatted primary NID: %s\"", prim_nid);
goto out;
}
num_nids = 0;
if (nids) {
/* if there is no primary nid we need to make the first nid in
* the nids list the primary nid
*/
replace_sep(nids, ',', ' ');
rc = lustre_lnet_parse_nidstr(nids, lnet_nidlist,
LNET_MAX_NIDS_PER_PEER, err_str);
if (rc < 0)
goto out;
num_nids = rc;
}
rc = lustre_lnet_mod_peer_nidlist(pnid, lnet_nidlist,
cmd, num_nids, is_mr,
option, -1, err_rc);
out:
if (rc != LUSTRE_CFG_RC_NO_ERR)
cYAML_build_error(rc, -1, "peer",
cmd == LNETCTL_ADD_CMD ? "add" : "del",
err_str, err_rc);
return rc;
}
static int lustre_lnet_route_common(char *nw, char *nidstr, int hops, int prio,
int seq_no, struct cYAML **err_rc,
int cmd)
{
int rc, num_nids, idx;
__u32 rnet;
char err_str[LNET_MAX_STR_LEN] = "\"generic error\"";
struct lnet_ioctl_config_data data;
lnet_nid_t lnet_nidlist[LNET_MAX_NIDS_PER_PEER];
if (nw == NULL || nidstr == NULL) {
snprintf(err_str, LNET_MAX_STR_LEN,
"\"missing mandatory parameter:'%s'\"",
(nw == NULL && nidstr == NULL) ? "network, gateway" :
(nw == NULL) ? "network" : "gateway");
rc = LUSTRE_CFG_RC_MISSING_PARAM;
goto out;
}
rnet = libcfs_str2net(nw);
if (rnet == LNET_NET_ANY) {
snprintf(err_str, LNET_MAX_STR_LEN,
"\"cannot parse remote net %s\"", nw);
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto out;
}
replace_sep(nidstr, ',', ' ');
rc = lustre_lnet_parse_nidstr(nidstr, lnet_nidlist,
LNET_MAX_NIDS_PER_PEER, err_str);
if (rc < 0)
goto out;
num_nids = rc;
for (idx = 0; idx < num_nids; idx++) {
LIBCFS_IOC_INIT_V2(data, cfg_hdr);
data.cfg_net = rnet;
if (cmd == LNETCTL_ADD_CMD) {
data.cfg_config_u.cfg_route.rtr_hop = hops;
data.cfg_config_u.cfg_route.rtr_priority = prio;
/* Set to 1 for compatability with older kernel that
* still uses per-peer sensitivity
*/
data.cfg_config_u.cfg_route.rtr_sensitivity = 1;
}
data.cfg_nid = lnet_nidlist[idx];
if (cmd == LNETCTL_ADD_CMD)
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_ADD_ROUTE,
&data);
else
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_DEL_ROUTE,
&data);
if (rc != 0 && errno != EEXIST &&
errno != EHOSTUNREACH) {
rc = -errno;
snprintf(err_str, LNET_MAX_STR_LEN,
"\"route operation failed: %s\"",
strerror(errno));
goto out;
} else if (errno == EEXIST) {
/*
* continue chugging along if one of the
* routes already exists
*/
rc = 0;
}
}
out:
cYAML_build_error(rc, seq_no,
cmd == LNETCTL_ADD_CMD ? ADD_CMD : DEL_CMD, "route",
err_str, err_rc);
return rc;
}
int lustre_lnet_config_route(char *nw, char *nidstr, int hops, int prio,
int seq_no, struct cYAML **err_rc)
{
int rc;
char err_str[LNET_MAX_STR_LEN] = "generic error";
if (hops == -1) {
hops = LNET_UNDEFINED_HOPS;
} else if (hops < 1 || hops > 255) {
snprintf(err_str, LNET_MAX_STR_LEN,
"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, LNET_MAX_STR_LEN,
"invalid priority %d, must be greater than 0",
prio);
rc = LUSTRE_CFG_RC_OUT_OF_RANGE_PARAM;
goto out;
}
rc = lustre_lnet_route_common(nw, nidstr, hops, prio, seq_no, err_rc,
LNETCTL_ADD_CMD);
return rc;
out:
cYAML_build_error(rc, seq_no, ADD_CMD, "route", err_str, err_rc);
return rc;
}
int lustre_lnet_del_route(char *nw, char *nidstr, int seq_no,
struct cYAML **err_rc)
{
return lustre_lnet_route_common(nw, nidstr, 0, 0, seq_no, err_rc,
LNETCTL_DEL_CMD);
}
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, bool backup)
{
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_NET_ANY;
int i;
struct cYAML *root = NULL, *route = NULL, *item = NULL;
struct cYAML *first_seq = NULL;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
bool exist = false;
if (nw != NULL) {
net = libcfs_str2net(nw);
if (net == LNET_NET_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_NET_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++) {
__u32 rt_alive;
__u32 rt_multi_hop;
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_NET_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;
rt_alive = data.cfg_config_u.cfg_route.rtr_flags &
LNET_RT_ALIVE;
rt_multi_hop = data.cfg_config_u.cfg_route.rtr_flags &
LNET_RT_MULTI_HOP;
if (!backup &&
cYAML_create_string(item, "state",
rt_alive ?
"up" : "down") == NULL)
goto out;
if (!backup &&
cYAML_create_string(item, "type",
rt_multi_hop?
"multi-hop" : "single-hop") == 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;
}
static int lustre_lnet_queryip(struct lnet_dlc_intf_descr *intf, __u32 *ip)
{
struct ifreq ifr;
int rc;
memset(&ifr, 0, sizeof(ifr));
rc = socket_intf_query(SIOCGIFFLAGS, intf->intf_name, &ifr);
if (rc != 0)
return LUSTRE_CFG_RC_BAD_PARAM;
if ((ifr.ifr_flags & IFF_UP) == 0)
return LUSTRE_CFG_RC_BAD_PARAM;
memset(&ifr, 0, sizeof(ifr));
rc = socket_intf_query(SIOCGIFADDR, intf->intf_name, &ifr);
if (rc != 0)
return LUSTRE_CFG_RC_BAD_PARAM;
*ip = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr;
*ip = bswap_32(*ip);
return LUSTRE_CFG_RC_NO_ERR;
}
#define device_path "/sys/class/net/%s/device/cxi"
int lustre_lnet_kfi_intf2cxi(struct lnet_dlc_intf_descr *intf)
{
DIR *dir = NULL;
struct dirent *entry;
char *path;
int count = 0;
int rc = 0;
int size;
/* Already cxi device name, nothing to do */
if (!strncmp(intf->intf_name, "cxi", 3))
return LUSTRE_CFG_RC_NO_ERR;
/* Get cxi device name from the network interface. e.g. cxi0 below
* # ls /sys/class/net/hsn0/device/cxi
* cxi0
* #
*/
size = snprintf(NULL, 0, device_path, intf->intf_name) + 1;
path = malloc(size);
if (!path)
return LUSTRE_CFG_RC_OUT_OF_MEM;
sprintf(path, device_path, intf->intf_name);
dir = opendir(path);
free(path);
if (!dir)
return LUSTRE_CFG_RC_BAD_PARAM;
while ((entry = readdir(dir)) != NULL) {
if (strncmp(entry->d_name, "cxi", 3))
continue;
/* There should only be a single cxi device, and
* its name should fit in the intf_name buffer
*/
if (count ||
strlen(entry->d_name) >= sizeof(intf->intf_name)) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
break;
}
/* Overwrite the interface name with the cxi device */
strncpy(intf->intf_name, entry->d_name,
sizeof(intf->intf_name));
count++;
}
closedir(dir);
if (count != 1)
rc = LUSTRE_CFG_RC_BAD_PARAM;
return rc;
}
#define cxi_nic_addr_path "/sys/class/cxi/cxi%u/device/properties/"
static int lustre_lnet_kfi_intf2nid(struct lnet_dlc_intf_descr *intf,
__u32 *nid_addr)
{
unsigned int nic_index;
int rc = 0;
char *nic_addr_path;
char val[128];
int size;
long int addr;
rc = lustre_lnet_kfi_intf2cxi(intf);
if (rc != LUSTRE_CFG_RC_NO_ERR)
return rc;
rc = sscanf(intf->intf_name, "cxi%u", &nic_index);
if (rc != 1)
return LUSTRE_CFG_RC_BAD_PARAM;
size = snprintf(NULL, 0, cxi_nic_addr_path, nic_index) + 1;
nic_addr_path = malloc(size);
if (!nic_addr_path)
return LUSTRE_CFG_RC_OUT_OF_MEM;
sprintf(nic_addr_path, cxi_nic_addr_path, nic_index);
rc = read_sysfs_file(nic_addr_path, "nic_addr", val, 1, sizeof(val));
free(nic_addr_path);
if (rc)
return LUSTRE_CFG_RC_BAD_PARAM;
addr = strtol(val, NULL, 16);
if (addr == LONG_MIN || addr == LONG_MAX)
return LUSTRE_CFG_RC_BAD_PARAM;
*nid_addr = addr;
return LUSTRE_CFG_RC_NO_ERR;
}
/*
* 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,
char *err_str, size_t str_len)
{
int i = 0, count = 0, rc;
struct lnet_dlc_intf_descr *intf;
char val[LNET_MAX_STR_LEN];
__u32 ip;
__u32 nic_addr;
int gni_num;
char *endp;
unsigned int num;
if (nw == NULL || nids == NULL) {
snprintf(err_str, str_len,
"\"unexpected parameters to lustre_lnet_intf2nids()\"");
return LUSTRE_CFG_RC_BAD_PARAM;
}
if (LNET_NETTYP(nw->nw_id) == GNILND) {
count = 1;
} else {
list_for_each_entry(intf, &nw->nw_intflist, intf_on_network)
count++;
}
*nids = calloc(count, sizeof(lnet_nid_t));
if (*nids == NULL) {
snprintf(err_str, str_len,
"\"out of memory\"");
return LUSTRE_CFG_RC_OUT_OF_MEM;
}
/*
* special case the GNI interface since it doesn't have an IP
* address. The assumption is that there can only be one GNI
* interface in the system. No interface name is provided.
*/
if (LNET_NETTYP(nw->nw_id) == GNILND) {
rc = read_sysfs_file(gni_nid_path, "nid", val,
1, sizeof(val));
if (rc) {
snprintf(err_str, str_len,
"\"cannot read gni nid\"");
rc = LUSTRE_CFG_RC_BAD_PARAM;
goto failed;
}
gni_num = atoi(val);
(*nids)[i] = LNET_MKNID(nw->nw_id, gni_num);
goto out;
} else if (LNET_NETTYP(nw->nw_id) == KFILND) {
list_for_each_entry(intf, &nw->nw_intflist, intf_on_network) {
rc = lustre_lnet_kfi_intf2nid(intf, &nic_addr);
if (rc != LUSTRE_CFG_RC_NO_ERR) {
snprintf(err_str, str_len,
"\"couldn't query kfi intf %s\"",
intf->intf_name);
err_str[str_len - 1] = '\0';
goto failed;
}
(*nids)[i] = LNET_MKNID(nw->nw_id, nic_addr);
i++;
}
goto out;
}
/* look at the other interfaces */
list_for_each_entry(intf, &nw->nw_intflist, intf_on_network) {
if (LNET_NETTYP(nw->nw_id) == EFALND) {
(*nids)[i] = LNET_MKNID(nw->nw_id, LNET_ADDR_ANY);
i++;
} else if (LNET_NETTYP(nw->nw_id) == PTL4LND) {
/* handle LNDs with numeric interface name */
num = strtoul(intf->intf_name, &endp, 0);
if (endp == intf->intf_name || *endp != '\0') {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, str_len,
"\"couldn't query intf %s\"",
intf->intf_name);
goto failed;
}
(*nids)[i] = LNET_MKNID(nw->nw_id, num);
i++;
} else {
/* handle LNDs with ip interface name */
rc = lustre_lnet_queryip(intf, &ip);
if (rc != LUSTRE_CFG_RC_NO_ERR) {
snprintf(err_str, str_len,
"\"couldn't query intf %s\"",
intf->intf_name);
goto failed;
}
(*nids)[i] = LNET_MKNID(nw->nw_id, ip);
i++;
}
}
out:
*nnids = count;
return LUSTRE_CFG_RC_NO_ERR;
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.
*/
static int lustre_lnet_match_ip_to_intf(struct ifaddrs *ifa,
struct list_head *intf_list,
struct list_head *ip_ranges,
char *err_str, size_t str_len,
__u32 net_id)
{
int rc;
struct lnet_dlc_intf_descr *intf_descr, *tmp;
struct ifaddrs *ifaddr = ifa;
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")) {
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;
}
}
snprintf(err_str, str_len, "No UP interfaces were found");
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;
if (!ip_addr_in_range(ifaddr, ip_ranges))
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;
snprintf(err_str, str_len,
"IP pattern(s) do not match available interfaces");
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 n
* 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) {
bool found_match = false;
/* An interface may have multiple IP addresses (e.g., IPv4,
* IPv6, link-local, global). We need to check ALL addresses on
* the interface to see if any match the ip-range specification.
*/
for (ifaddr = ifa; ifaddr != NULL; ifaddr = ifaddr->ifa_next) {
if (ifaddr->ifa_addr == NULL)
continue;
/* Skip if not the interface we're looking for */
if (strcmp(intf_descr->intf_name, ifaddr->ifa_name))
continue;
/* Check if interface is UP */
if ((ifaddr->ifa_flags & IFF_UP) == 0) {
list_del(&intf_descr->intf_on_network);
free_intf_descr(intf_descr);
break;
}
/* Automatic match if no ranges were specified,
* otherwise we check against the ranges
*/
if (list_empty(ip_ranges) ||
ip_addr_in_range(ifaddr, ip_ranges)) {
found_match = true;
break;
}
}
if (!found_match) {
if (!ifaddr) {
/*
* kfilnd interfaces like cxi0 may refer to
* hardware devices not visible as standard
* Linux network interfaces. Accept them without
* validation only if:
* 1. This is a kfilnd network
* 2. No ip-ranges were specified
* 3. Interface matches cxi[0-9]+ pattern
*/
if (LNET_NETTYP(net_id) == KFILND &&
list_empty(ip_ranges)) {
unsigned int idx;
if (sscanf(intf_descr->intf_name,
"cxi%u", &idx) == 1)
continue;
}
snprintf(err_str, str_len,
"No interface matching '%s'",
intf_descr->intf_name);
} else if ((ifaddr->ifa_flags & IFF_UP) == 0) {
snprintf(err_str, str_len,
"Matched interface '%s' is not UP",
intf_descr->intf_name);
} else {
snprintf(err_str, str_len,
"Interface '%s' doesn't match an IP pattern",
intf_descr->intf_name);
}
list_del(&intf_descr->intf_on_network);
free_intf_descr(intf_descr);
return LUSTRE_CFG_RC_NO_MATCH;
}
}
return LUSTRE_CFG_RC_MATCH;
}
int lustre_lnet_resolve_ip2nets_rule(struct lustre_lnet_ip2nets *ip2nets,
lnet_nid_t **nids, __u32 *nnids,
char *err_str, size_t str_len)
{
struct ifaddrs *ifa;
int rc = LUSTRE_CFG_RC_NO_ERR;
rc = getifaddrs(&ifa);
if (rc < 0) {
snprintf(err_str, str_len,
"\"failed to get interface addresses: %d\"", -errno);
return -errno;
}
rc = lustre_lnet_match_ip_to_intf(ifa,
&ip2nets->ip2nets_net.nw_intflist,
&ip2nets->ip2nets_ip_ranges, err_str,
str_len,
ip2nets->ip2nets_net.nw_id);
if (rc != LUSTRE_CFG_RC_MATCH) {
freeifaddrs(ifa);
return rc;
}
rc = lustre_lnet_intf2nids(&ip2nets->ip2nets_net, nids, nnids,
err_str, str_len);
if (rc != LUSTRE_CFG_RC_NO_ERR) {
*nids = NULL;
*nnids = 0;
}
freeifaddrs(ifa);
return rc;
}
void lustre_lnet_free_list(struct nid_node *head)
{
struct nid_node *entry, *tmp;
nl_list_for_each_entry_safe(entry, tmp, &head->children, list) {
nl_list_del(&entry->list);
free(entry);
}
}
static int unroll_nid_range_scan(struct nid_node *list, const char *nid,
char *tmp, char *tmp2, char *nidstr,
const char **errmsg)
{
unsigned int first = 0, last = 0, off = 0, inc = 1;
bool slash = false, hyphen = false;
char num[INT_STRING_LEN] = "";
char *range = tmp + 1;
int base = 10;
int rc;
if (!tmp && !tmp2) {
*errmsg = "\"Unable to parse nidlist: [] are missing\"";
return -ERANGE;
}
if ((tmp && !tmp2) || (!tmp && tmp2)) {
*errmsg = "\"Unable to parse nidlist: incomplete bracket set\"";
return -EINVAL;
}
if (range > tmp2) {
*errmsg = "\"Unable to parse nidlist: improper bracket ordering\"";
return -EINVAL;
}
if (strchr(nid, ':'))
base = 16;
while (range < tmp2) {
if (isxdigit(*range)) {
if (off > INT_STRING_LEN)
return -E2BIG;
num[off++] = *range++;
} else if (*range == ':') {
/* skip ':' for IPv6 and IB GUID */
range++;
} else if (*range == '-') {
range++;
if (!isxdigit(*range)) {
*errmsg = "\"Unable to parse nidlist: range needs number after -\"";
return -ERANGE;
}
first = strtoul(num, NULL, base);
memset(num, 0, sizeof(num));
hyphen = true;
off = 0;
} else if (*range == '/') {
range++;
if (!isdigit(*range)) {
*errmsg = "\"Unable to parse nidlist: range needs number after /\"";
return -ERANGE;
}
/* Don't lose last number. This should be the very last item */
if (strlen(num)) {
last = strtoul(num, NULL, base);
memset(num, 0, sizeof(num));
slash = true;
off = 0;
}
} else if (*range == ',') {
char *end = strchr(nidstr, ',');
int count = strlen(tmp2 + 1);
struct nid_node *item;
int len = tmp - nid;
range++;
if (!isxdigit(*range)) {
*errmsg = "\"Unable to parse nidlist: range needs number after ,\"";
return -ERANGE;
}
/* If hyphen is true then we have the foramt '[first - last],' format.
* The other format is just x, y, z, ... format.
*/
if (hyphen) {
if (slash)
inc = strtoul(num, NULL, base);
else
last = strtoul(num, NULL, base);
if (first > last) {
*errmsg = "\"Unable to parse nidlist: range is wrong order\"";
return -ERANGE;
}
while (last >= first) {
char hdr[LNET_MAX_STR_LEN], *next;
snprintf(hdr, sizeof(hdr), "%.*s%d%.*s",
len, nid, first, count,
tmp2 + 1);
next = strchr(hdr, '[');
if (next && strchr(next, ']')) {
rc = unroll_nid_range_scan(list, hdr, next,
strchr(next, ']'),
nidstr, errmsg);
if (rc < 0)
return rc;
} else {
item = calloc(1, sizeof(struct nid_node));
if (!item) {
*errmsg = "\"Unable to parse nidlist: allocation failed\"";
return -ENOMEM;
}
snprintf(item->nidstr, sizeof(item->nidstr),
"%s@%s", hdr, nidstr);
nl_init_list_head(&item->list);
nl_list_add_tail(&item->list, &list->children);
}
first += inc;
}
/* reset slash / hyphen handing */
hyphen = false;
slash = false;
inc = 1;
} else {
int end_len = end ? end - nidstr : strlen(nidstr);
item = calloc(1, sizeof(struct nid_node));
if (!item) {
*errmsg = "\"Unable to parse nidlist: allocation failed\"";
return -ENOMEM;
}
snprintf(item->nidstr, sizeof(item->nidstr),
"%.*s%s%.*s@%.*s", len, nid, num,
count, tmp2 + 1, end_len, nidstr);
nl_init_list_head(&item->list);
nl_list_add_tail(&item->list, &list->children);
}
memset(num, 0, sizeof(num));
off = 0;
} else {
*errmsg = "\"Unable to parse nidlist: invalid character in range\"";
return -EINVAL;
}
}
if (strlen(num)) {
if (slash)
inc = strtoul(num, NULL, base);
else
last = strtoul(num, NULL, base);
memset(num, 0, sizeof(num));
}
if (!hyphen)
first = last;
/* This is the last set of [ first - last ]. We reach this point because
* the above loop reached the end of the range and no ',' was found so
* the final set of number range wasn't processed. Do that handling here.
*/
if (first || last) {
char *next = tmp2 + 1;
int len = strlen(nid);
if (first > last) {
*errmsg = "\"Unable to parse nidlist: range is wrong order\"";
return -ERANGE;
}
if (strchr(nid, '['))
len = strchr(nid, '[') - nid;
tmp = strchr(tmp2, '[');
if (tmp)
tmp2 = strchr(tmp, ']');
while (last >= first) {
char str[LNET_MAX_STR_LEN];
snprintf(str, sizeof(str), "%.*s%u%.*s",
len, nid, first, (int)(tmp - next), next);
if (tmp && tmp2) {
rc = unroll_nid_range_scan(list, str, tmp, tmp2,
nidstr, errmsg);
if (rc < 0)
return rc;
} else {
char *end = strchr(nidstr, ',');
int count = end ? end - nidstr : strlen(nidstr);
struct nid_node *item;
item = calloc(1, sizeof(struct nid_node));
if (!item) {
*errmsg = "\"Unable to parse nidlist: allocation failed\"";
return -ENOMEM;
}
snprintf(item->nidstr, sizeof(item->nidstr),
"%s@%.*s", str, count, nidstr);
nl_init_list_head(&item->list);
nl_list_add_tail(&item->list, &list->children);
}
first += inc;
}
}
return 0;
}
int lustre_lnet_parse_nid_range(struct nid_node *head, char *nidstr,
const char **errmsg)
{
int rc = 0;
char *nid;
if (!nidstr) {
*errmsg = "supplied nidstr is NULL";
return -EINVAL;
}
if (strchr(nidstr, '*')) {
*errmsg = "asterisk not allowed in nidstring";
return -EINVAL;
}
if (strstr(nidstr, "<?>")) {
*errmsg = "\"Unable to parse nidlist: LNET_ANY_NID is unsupported\"";
return -EINVAL;
}
if (strchr(nidstr, '@') == NULL) {
*errmsg = "\"Unable to parse nidlist: no valid NIDs in string\"";
return -EINVAL;
}
while ((nid = strsep(&nidstr, "@")) != NULL) {
char *tmp = NULL, *tmp2 = NULL, *end = NULL;
tmp = strchr(nid, '[');
tmp2 = strchr(nid, ']');
if (!tmp && !tmp2) {
char *end = strchr(nidstr, ',');
char orig[LNET_MAX_STR_LEN];
struct nid_node *item;
struct lnet_nid NID;
int count;
item = calloc(1, sizeof(struct nid_node));
if (!item) {
*errmsg = "\"Unable to parse nidlist: allocation failed\"";
rc = -ENOMEM;
goto err;
}
count = end ? end - nidstr : strlen(nidstr);
snprintf(orig, sizeof(orig), "%s@%.*s", nid, count,
nidstr);
/* Allow hostname version of the NID. We have to
* translate them to address type NID.
*/
rc = libcfs_strnid(&NID, orig);
if (rc < 0) {
*errmsg = "\"Unable to parse nidlist: invalid NID in nidstr\"";
goto err;
}
libcfs_nidstr_r(&NID, item->nidstr,
sizeof(item->nidstr));
nl_init_list_head(&item->list);
nl_list_add_tail(&item->list, &head->children);
} else {
rc = unroll_nid_range_scan(head, nid, tmp, tmp2,
nidstr, errmsg);
if (rc < 0)
goto err;
}
if (nidstr) {
end = strchr(nidstr, ',');
if (end)
nidstr = end + 1;
else
nidstr = NULL;
}
}
err:
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, 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] = "\"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, err_str,
sizeof(err_str));
if (rc != LUSTRE_CFG_RC_NO_ERR && rc != LUSTRE_CFG_RC_MATCH)
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 * 2] = "\"success\"";
lnet_nid_t *nids = NULL;
__u32 nnids = 0;
size_t len;
int count;
struct lnet_dlc_intf_descr *intf_descr, *tmp;
__u32 *cpt_array;
if (ip2net == NULL && (nw_descr == NULL || nw_descr->nw_id == 0 ||
(list_empty(&nw_descr->nw_intflist) &&
LNET_NETTYP(nw_descr->nw_id) != GNILND))) {
snprintf(err_str,
sizeof(err_str),
"\"missing mandatory parameters in NI config: '%s'\"",
(nw_descr == NULL) ? "network , interface" :
(nw_descr->nw_id == 0) ? "network" : "interface");
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_NET_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;
}
/*
* special case the GNI since no interface name is expected
*/
if (list_empty(&nw_descr->nw_intflist) &&
(LNET_NETTYP(nw_descr->nw_id) != GNILND)) {
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,
err_str, sizeof(err_str));
if (rc != 0) {
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;
struct lnet_dlc_intf_descr *intf;
int rc = LUSTRE_CFG_RC_NO_ERR, i;
char err_str[LNET_MAX_STR_LEN * 2] = "\"success\"";
lnet_nid_t *nids = NULL;
__u32 nnids = 0;
struct lnet_dlc_intf_descr *intf_descr, *tmp;
if (nw_descr == NULL || nw_descr->nw_id == 0) {
snprintf(err_str,
sizeof(err_str),
"\"missing mandatory parameter in deleting NI: '%s'\"",
(nw_descr == NULL) ? "network , interface" :
(nw_descr->nw_id == 0) ? "network" : "interface");
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_NET_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,
err_str, sizeof(err_str));
if (rc != 0) {
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;
}
if (LNET_NETTYP(nw_descr->nw_id) == EFALND) {
list_for_each_entry(intf, &nw_descr->nw_intflist, intf_on_network) {
LIBCFS_IOC_INIT_V2(data, lic_cfg_hdr);
data.lic_nid = LNET_MKNID(nw_descr->nw_id,
LNET_ADDR_ANY);
strncpy(data.lic_ni_intf, intf->intf_name,
LNET_MAX_STR_LEN);
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));
}
}
} else {
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;
}
static int
lustre_lnet_config_healthv(int value, bool all, lnet_nid_t nid,
enum lnet_health_type type, char *name,
int seq_no, struct cYAML **err_rc)
{
struct lnet_ioctl_reset_health_cfg data;
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
LIBCFS_IOC_INIT_V2(data, rh_hdr);
data.rh_type = type;
data.rh_all = all;
data.rh_value = value;
data.rh_nid = nid;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_SET_HEALHV, &data);
if (rc != 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str), "\"Can not configure health value: %s\"",
strerror(errno));
}
cYAML_build_error(rc, seq_no, ADD_CMD, name, err_str, err_rc);
return rc;
}
static int
lustre_lnet_config_peer(int state, lnet_nid_t nid, char *name,
int seq_no, struct cYAML **err_rc)
{
struct lnet_ioctl_peer_cfg data;
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
LIBCFS_IOC_INIT_V2(data, prcfg_hdr);
data.prcfg_state = state;
data.prcfg_prim_nid = nid;
data.prcfg_cfg_nid = LNET_NID_ANY;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_SET_PEER, &data);
if (rc != 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str), "\"Can not set peer property: %s\"",
strerror(errno));
}
cYAML_build_error(rc, seq_no, ADD_CMD, name, err_str, err_rc);
return rc;
}
static int
lustre_lnet_config_conns_per_peer(int value, bool all, lnet_nid_t nid,
char *name, int seq_no,
struct cYAML **err_rc)
{
struct lnet_ioctl_reset_conns_per_peer_cfg data;
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
LIBCFS_IOC_INIT_V2(data, rcpp_hdr);
data.rcpp_all = all;
data.rcpp_value = value;
data.rcpp_nid = nid;
if (value < 0 || value > 127) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, sizeof(err_str),
"\"Valid values are: 0-127\"");
} else {
rc = l_ioctl(LNET_DEV_ID,
IOC_LIBCFS_SET_CONNS_PER_PEER, &data);
if (rc != 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str),
"\"Can not configure conns_per_peer value: %s\"",
strerror(errno));
}
}
cYAML_build_error(rc, seq_no, ADD_CMD, name, err_str, err_rc);
return rc;
}
int lustre_lnet_config_ni_healthv(int value, bool all, char *ni_nid, int seq_no,
struct cYAML **err_rc)
{
lnet_nid_t nid;
if (ni_nid)
nid = libcfs_str2nid(ni_nid);
else
nid = LNET_NID_ANY;
return lustre_lnet_config_healthv(value, all, nid,
LNET_HEALTH_TYPE_LOCAL_NI,
"ni healthv", seq_no, err_rc);
}
int lustre_lnet_config_peer_ni_healthv(int value, bool all, char *lpni_nid,
int seq_no, struct cYAML **err_rc)
{
lnet_nid_t nid;
if (lpni_nid)
nid = libcfs_str2nid(lpni_nid);
else
nid = LNET_NID_ANY;
return lustre_lnet_config_healthv(value, all, nid,
LNET_HEALTH_TYPE_PEER_NI,
"peer_ni healthv", seq_no, err_rc);
}
int lustre_lnet_set_peer_state(int state, char *lpni_nid, int seq_no,
struct cYAML **err_rc)
{
lnet_nid_t nid;
if (lpni_nid)
nid = libcfs_str2nid(lpni_nid);
else
nid = LNET_NID_ANY;
return lustre_lnet_config_peer(state, nid, "peer state", seq_no,
err_rc);
}
int lustre_lnet_config_ni_conns_per_peer(int value, bool all, char *ni_nid,
int seq_no, struct cYAML **err_rc)
{
lnet_nid_t nid;
if (ni_nid)
nid = libcfs_str2nid(ni_nid);
else
nid = LNET_NID_ANY;
return lustre_lnet_config_conns_per_peer(value, all, nid,
"ni conns_per_peer",
seq_no, err_rc);
}
static bool
add_msg_stats_to_yaml_blk(struct cYAML *yaml,
struct lnet_ioctl_comm_count *counts)
{
if (cYAML_create_number(yaml, "put",
counts->ico_put_count)
== NULL)
return false;
if (cYAML_create_number(yaml, "get",
counts->ico_get_count)
== NULL)
return false;
if (cYAML_create_number(yaml, "reply",
counts->ico_reply_count)
== NULL)
return false;
if (cYAML_create_number(yaml, "ack",
counts->ico_ack_count)
== NULL)
return false;
if (cYAML_create_number(yaml, "hello",
counts->ico_hello_count)
== NULL)
return false;
return true;
}
static struct lnet_ioctl_comm_count *
get_counts(struct lnet_ioctl_element_msg_stats *msg_stats, int idx)
{
if (idx == 0)
return &msg_stats->im_send_stats;
if (idx == 1)
return &msg_stats->im_recv_stats;
if (idx == 2)
return &msg_stats->im_drop_stats;
return NULL;
}
static int
create_local_udsp_info(struct lnet_ioctl_construct_udsp_info *udsp_info,
struct cYAML *net_node)
{
char tmp[LNET_MAX_STR_LEN];
struct cYAML *udsp_net;
bool created = false;
struct cYAML *pref;
int i;
/* add the UDSP info */
udsp_net = cYAML_create_object(net_node, "udsp info");
if (!udsp_net)
return LUSTRE_CFG_RC_OUT_OF_MEM;
if (!cYAML_create_number(udsp_net, "net priority",
(int) udsp_info->cud_net_priority))
return LUSTRE_CFG_RC_OUT_OF_MEM;
if (!cYAML_create_number(udsp_net, "nid priority",
(int)udsp_info->cud_nid_priority))
return LUSTRE_CFG_RC_OUT_OF_MEM;
pref = udsp_net;
for (i = 0; i < LNET_MAX_SHOW_NUM_NID; i++) {
memset(tmp, 0, LNET_MAX_STR_LEN);
if (udsp_info->cud_pref_rtr_nid[i] == 0)
break;
if (!created) {
pref = cYAML_create_object(udsp_net,
"Preferred gateway NIDs");
if (!pref)
return LUSTRE_CFG_RC_OUT_OF_MEM;
created = true;
}
snprintf(tmp, sizeof(tmp), "NID-%d", i);
if (!cYAML_create_string(pref, tmp,
libcfs_nid2str(udsp_info->cud_pref_rtr_nid[i])))
return LUSTRE_CFG_RC_OUT_OF_MEM;
}
return LUSTRE_CFG_RC_NO_ERR;
}
static int
create_remote_udsp_info(struct lnet_ioctl_construct_udsp_info *udsp_info,
struct cYAML *nid_node)
{
char tmp[LNET_MAX_STR_LEN];
struct cYAML *udsp_nid;
bool created = false;
struct cYAML *pref;
int i;
/* add the UDSP info */
udsp_nid = cYAML_create_object(nid_node, "udsp info");
if (!udsp_nid)
return LUSTRE_CFG_RC_OUT_OF_MEM;
if (!cYAML_create_number(udsp_nid, "net priority",
(int) udsp_info->cud_net_priority))
return LUSTRE_CFG_RC_OUT_OF_MEM;
if (!cYAML_create_number(udsp_nid, "nid priority",
(int) udsp_info->cud_nid_priority))
return LUSTRE_CFG_RC_OUT_OF_MEM;
pref = udsp_nid;
for (i = 0; i < LNET_MAX_SHOW_NUM_NID; i++) {
memset(tmp, 0, LNET_MAX_STR_LEN);
if (udsp_info->cud_pref_rtr_nid[i] == 0)
break;
if (!created) {
pref = cYAML_create_object(udsp_nid,
"Preferred gateway NIDs");
if (!pref)
return LUSTRE_CFG_RC_OUT_OF_MEM;
created = true;
}
snprintf(tmp, sizeof(tmp), "NID-%d", i);
if (!cYAML_create_string(pref, tmp,
libcfs_nid2str(udsp_info->cud_pref_rtr_nid[i])))
return LUSTRE_CFG_RC_OUT_OF_MEM;
}
pref = udsp_nid;
created = false;
for (i = 0; i < LNET_MAX_SHOW_NUM_NID; i++) {
memset(tmp, 0, LNET_MAX_STR_LEN);
if (udsp_info->cud_pref_nid[i] == 0)
break;
if (!created) {
pref = cYAML_create_object(udsp_nid,
"Preferred source NIDs");
if (!pref)
return LUSTRE_CFG_RC_OUT_OF_MEM;
created = true;
}
snprintf(tmp, sizeof(tmp), "NID-%d", i);
if (!cYAML_create_string(pref, tmp,
libcfs_nid2str(udsp_info->cud_pref_nid[i])))
return LUSTRE_CFG_RC_OUT_OF_MEM;
}
return LUSTRE_CFG_RC_NO_ERR;
}
int lustre_lnet_show_net(char *nw, int detail, int seq_no,
struct cYAML **show_rc, struct cYAML **err_rc,
bool backup)
{
char *buf;
struct lnet_ioctl_config_ni *ni_data;
struct lnet_ioctl_config_lnd_tunables *lnd;
struct lnet_ioctl_element_stats *stats;
struct lnet_ioctl_element_msg_stats msg_stats;
struct lnet_ioctl_local_ni_hstats hstats;
struct lnet_ioctl_construct_udsp_info udsp_info;
__u32 net = LNET_NET_ANY;
__u32 prev_net = LNET_NET_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,
*yhstats = 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] = "\"out of memory\"";
bool exist = false, new_net = true;
int net_num = 0;
size_t buf_size = sizeof(*ni_data) + sizeof(*lnd) + sizeof(*stats);
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_NET_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++) {
__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_NET_ANY &&
net != rc_net)
continue;
/* if we're backing up don't store lo */
if (backup && LNET_NETTYP(rc_net) == LOLND)
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) {
tmp = cYAML_create_string(net_node, "net type", libcfs_net2str(rc_net));
if (tmp == NULL)
goto out;
if (first_seq == NULL)
first_seq = tmp;
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 (!backup &&
cYAML_create_string(item, "nid",
libcfs_nid2str(ni_data->lic_nid)) == NULL)
goto out;
if (!backup &&
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) {
interfaces = cYAML_create_object(item, "interfaces");
if (interfaces == NULL)
goto out;
snprintf(str_buf, sizeof(str_buf), "%d", 0);
if (cYAML_create_string(interfaces, str_buf,
ni_data->lic_ni_intf) == NULL)
goto out;
}
if (detail) {
char *limit;
int k;
if (backup)
goto continue_without_msg_stats;
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;
if (detail < 4)
goto continue_without_udsp_info;
LIBCFS_IOC_INIT_V2(udsp_info, cud_hdr);
udsp_info.cud_nid = ni_data->lic_nid;
udsp_info.cud_peer = false;
rc = l_ioctl(LNET_DEV_ID,
IOC_LIBCFS_GET_CONST_UDSP_INFO,
&udsp_info);
if (rc != 0) {
l_errno = errno;
goto continue_without_udsp_info;
}
rc = create_local_udsp_info(&udsp_info, item);
if (rc) {
l_errno = errno;
goto out;
}
continue_without_udsp_info:
if (detail < 2)
goto continue_without_msg_stats;
LIBCFS_IOC_INIT_V2(msg_stats, im_hdr);
msg_stats.im_hdr.ioc_len = sizeof(msg_stats);
msg_stats.im_idx = i;
rc = l_ioctl(LNET_DEV_ID,
IOC_LIBCFS_GET_LOCAL_NI_MSG_STATS,
&msg_stats);
if (rc != 0) {
l_errno = errno;
goto continue_without_msg_stats;
}
for (k = 0; k < 3; k++) {
struct lnet_ioctl_comm_count *counts;
struct cYAML *msg_statistics = NULL;
msg_statistics = cYAML_create_object(item,
(char *)gmsg_stat_names[k]);
if (msg_statistics == NULL)
goto out;
counts = get_counts(&msg_stats, k);
if (counts == NULL)
goto out;
if (!add_msg_stats_to_yaml_blk(msg_statistics,
counts))
goto out;
}
LIBCFS_IOC_INIT_V2(hstats, hlni_hdr);
hstats.hlni_nid = ni_data->lic_nid;
/* grab health stats */
rc = l_ioctl(LNET_DEV_ID,
IOC_LIBCFS_GET_LOCAL_HSTATS,
&hstats);
if (rc != 0) {
l_errno = errno;
goto continue_without_msg_stats;
}
yhstats = cYAML_create_object(item, "health stats");
if (!yhstats)
goto out;
if (cYAML_create_number(yhstats, "fatal_error",
hstats.hlni_fatal_error)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "health value",
hstats.hlni_health_value)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "interrupts",
hstats.hlni_local_interrupt)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "dropped",
hstats.hlni_local_dropped)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "aborted",
hstats.hlni_local_aborted)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "no route",
hstats.hlni_local_no_route)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "timeouts",
hstats.hlni_local_timeout)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "error",
hstats.hlni_local_error)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "ping_count",
hstats.hlni_ping_count)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "next_ping",
hstats.hlni_next_ping)
== NULL)
goto out;
continue_without_msg_stats:
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;
if (rc != LUSTRE_CFG_RC_NO_MATCH) {
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, backup);
if (rc != LUSTRE_CFG_RC_NO_ERR &&
rc != LUSTRE_CFG_RC_NO_MATCH)
goto out;
if (!backup &&
cYAML_create_number(item, "dev cpt",
ni_data->lic_dev_cpt) == NULL)
goto out;
/* out put the CPTs in the format: "[x,x,x,...]" */
pos = str_buf;
limit = str_buf + str_buf_len - 3;
pos += scnprintf(pos, limit - pos, "\"[");
for (j = 0 ; ni_data->lic_ncpts >= 1 &&
j < ni_data->lic_ncpts &&
pos < limit; j++) {
pos += scnprintf(pos, limit - pos,
"%d", ni_data->lic_cpts[j]);
if ((j + 1) < ni_data->lic_ncpts)
pos += scnprintf(pos, limit - 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_config_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] = "\"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;
}
static int ioctl_set_value(__u32 val, int ioc, char *name,
int seq_no, struct cYAML **err_rc)
{
struct lnet_ioctl_set_value data;
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
LIBCFS_IOC_INIT_V2(data, sv_hdr);
data.sv_value = val;
rc = l_ioctl(LNET_DEV_ID, ioc , &data);
if (rc != 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot configure %s to %d: %s\"", name,
val, strerror(errno));
}
cYAML_build_error(rc, seq_no, ADD_CMD, name, err_str, err_rc);
return rc;
}
int lustre_lnet_config_recov_intrv(int intrv, int seq_no, struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
char val[LNET_MAX_STR_LEN];
snprintf(val, sizeof(val), "%d", intrv);
rc = write_sysfs_file(modparam_path, "lnet_recovery_interval", val,
1, strlen(val) + 1);
if (rc)
snprintf(err_str, sizeof(err_str),
"\"cannot configure recovery interval: %s\"",
strerror(errno));
cYAML_build_error(rc, seq_no, ADD_CMD, "recovery_interval", err_str, err_rc);
return rc;
}
int lustre_lnet_config_rtr_sensitivity(int sen, int seq_no, struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
char val[LNET_MAX_STR_LEN];
snprintf(val, sizeof(val), "%d", sen);
rc = write_sysfs_file(modparam_path, "router_sensitivity_percentage", val,
1, strlen(val) + 1);
if (rc)
snprintf(err_str, sizeof(err_str),
"\"cannot configure router health sensitivity: %s\"",
strerror(errno));
cYAML_build_error(rc, seq_no, ADD_CMD, "router_sensitivity", err_str, err_rc);
return rc;
}
int lustre_lnet_config_hsensitivity(int sen, int seq_no, struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
char val[LNET_MAX_STR_LEN];
snprintf(val, sizeof(val), "%d", sen);
rc = write_sysfs_file(modparam_path, "lnet_health_sensitivity", val,
1, strlen(val) + 1);
if (rc)
snprintf(err_str, sizeof(err_str),
"\"cannot configure health sensitivity: %s\"",
strerror(errno));
cYAML_build_error(rc, seq_no, ADD_CMD, "health_sensitivity", err_str, err_rc);
return rc;
}
int lustre_lnet_config_lnd_timeout(int timeout, __u32 net, int seq_no,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "";
char val[INT_STRING_LEN];
__u32 lnd = LNET_NETTYP(net);
snprintf(val, sizeof(val), "%d", timeout);
switch (lnd) {
case SOCKLND:
rc = write_sysfs_file(socklnd_modparam_path, "sock_timeout",
val, 1, strlen(val) + 1);
break;
case O2IBLND:
rc = write_sysfs_file(o2iblnd_modparam_path, "timeout", val, 1,
strlen(val) + 1);
break;
case KFILND:
rc = write_sysfs_file(kfilnd_modparam_path, "kfi_timeout", val,
1, strlen(val) + 1);
break;
case GNILND:
rc = write_sysfs_file(gnilnd_modparam_path, "timeout", val, 1,
strlen(val) + 1);
break;
default:
snprintf(err_str, sizeof(err_str),
"\"Net %s does not accept a LND timeout\"",
libcfs_lnd2str(lnd));
rc = -EINVAL;
}
/* Check return code from writing sysfs file */
if (rc)
snprintf(err_str, sizeof(err_str),
"\"Failed to set LND timeout for net %s\"",
libcfs_lnd2str(lnd));
cYAML_build_error(rc, seq_no, "set", "lnd_timeout", err_str, err_rc);
return rc;
}
int lustre_lnet_config_transaction_to(int timeout, int seq_no, struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
char val[LNET_MAX_STR_LEN];
snprintf(val, sizeof(val), "%d", timeout);
rc = write_sysfs_file(modparam_path, "lnet_transaction_timeout", val,
1, strlen(val) + 1);
if (rc)
snprintf(err_str, sizeof(err_str),
"\"cannot configure transaction timeout: %s\"",
strerror(errno));
cYAML_build_error(rc, seq_no, ADD_CMD, "transaction_timeout", err_str, err_rc);
return rc;
}
int lustre_lnet_config_retry_count(int count, int seq_no, struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
char val[LNET_MAX_STR_LEN];
snprintf(val, sizeof(val), "%d", count);
rc = write_sysfs_file(modparam_path, "lnet_retry_count", val,
1, strlen(val) + 1);
if (rc)
snprintf(err_str, sizeof(err_str),
"\"cannot configure retry count: %s\"",
strerror(errno));
cYAML_build_error(rc, seq_no, ADD_CMD, "retry_count", err_str, err_rc);
return rc;
}
int lustre_lnet_config_response_tracking(int val, int seq_no,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN];
char val_str[LNET_MAX_STR_LEN];
if (val < 0 || val > 3) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, sizeof(err_str),
"\"Valid values are: 0, 1, 2, or 3\"");
} else {
snprintf(err_str, sizeof(err_str), "\"success\"");
snprintf(val_str, sizeof(val_str), "%d", val);
rc = write_sysfs_file(modparam_path, "lnet_response_tracking",
val_str, 1, strlen(val_str) + 1);
if (rc)
snprintf(err_str, sizeof(err_str),
"\"cannot configure response tracking: %s\"",
strerror(errno));
}
cYAML_build_error(rc, seq_no, ADD_CMD, "response_tracking", err_str,
err_rc);
return rc;
}
int lustre_lnet_config_recovery_limit(int val, int seq_no,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN];
char val_str[LNET_MAX_STR_LEN];
if (val < 0) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, sizeof(err_str),
"\"Must be greater than or equal to 0\"");
} else {
snprintf(err_str, sizeof(err_str), "\"success\"");
snprintf(val_str, sizeof(val_str), "%d", val);
rc = write_sysfs_file(modparam_path, "lnet_recovery_limit",
val_str, 1, strlen(val_str) + 1);
if (rc)
snprintf(err_str, sizeof(err_str),
"\"cannot configure recovery limit: %s\"",
strerror(errno));
}
cYAML_build_error(rc, seq_no, ADD_CMD, "recovery_limit", err_str,
err_rc);
return rc;
}
int lustre_lnet_config_max_intf(int max, int seq_no, struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
char val[LNET_MAX_STR_LEN];
snprintf(val, sizeof(val), "%d", max);
rc = write_sysfs_file(modparam_path, "lnet_interfaces_max", val,
1, strlen(val) + 1);
if (rc)
snprintf(err_str, sizeof(err_str),
"\"cannot configure max interfaces: %s\"",
strerror(errno));
cYAML_build_error(rc, seq_no, ADD_CMD, "max_interfaces", err_str, err_rc);
return rc;
}
int lustre_lnet_config_discovery(int enable, int seq_no, struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
char val[LNET_MAX_STR_LEN];
snprintf(val, sizeof(val), "%u", (enable) ? 0 : 1);
rc = write_sysfs_file(modparam_path, "lnet_peer_discovery_disabled", val,
1, strlen(val) + 1);
if (rc)
snprintf(err_str, sizeof(err_str),
"\"cannot configure discovery: %s\"",
strerror(errno));
cYAML_build_error(rc, seq_no, ADD_CMD, "discovery", err_str, err_rc);
return rc;
}
int lustre_lnet_config_drop_asym_route(int drop, int seq_no,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
char val[LNET_MAX_STR_LEN];
snprintf(val, sizeof(val), "%u", (drop) ? 1 : 0);
rc = write_sysfs_file(modparam_path, "lnet_drop_asym_route", val,
1, strlen(val) + 1);
if (rc)
snprintf(err_str, sizeof(err_str),
"\"cannot configure drop asym route: %s\"",
strerror(errno));
cYAML_build_error(rc, seq_no, ADD_CMD, "drop_asym_route",
err_str, err_rc);
return rc;
}
int lustre_lnet_config_numa_range(int range, int seq_no, struct cYAML **err_rc)
{
return ioctl_set_value(range, IOC_LIBCFS_SET_NUMA_RANGE,
"numa_range", seq_no, err_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] = "\"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_config_max_recovery_ping_interval(int interval, int seq_no,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
char interval_str[LNET_MAX_STR_LEN];
if (interval <= 0) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, sizeof(err_str),
"\"must be strictly positive\"");
} else {
snprintf(interval_str, sizeof(interval_str), "%d", interval);
rc = write_sysfs_file(modparam_path,
"lnet_max_recovery_ping_interval",
interval_str, 1,
strlen(interval_str) + 1);
if (rc)
snprintf(err_str, sizeof(err_str),
"\"cannot configure maximum recovery ping interval: %s\"",
strerror(errno));
}
cYAML_build_error(rc, seq_no, ADD_CMD, "maximum recovery ping interval",
err_str, err_rc);
return rc;
}
int lustre_lnet_show_routing(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc, bool backup)
{
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] = "\"out of memory\"";
char node_name[LNET_MAX_STR_LEN];
bool exist = false;
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;
if (backup)
pools_node = cYAML_create_object(root, "routing");
else
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;
if (backup)
goto calculate_buffers;
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;
calculate_buffers:
/* create the tree and print */
for (j = 0; j < LNET_NRBPOOLS; j++) {
if (!backup) {
type_node = cYAML_create_object(cpt, pools[j]);
if (type_node == NULL)
goto out;
}
if (!backup &&
cYAML_create_number(type_node, "npages",
pool_cfg->pl_pools[j].pl_npages)
== NULL)
goto out;
if (!backup &&
cYAML_create_number(type_node, "nbuffers",
pool_cfg->pl_pools[j].
pl_nbuffers) == NULL)
goto out;
if (!backup &&
cYAML_create_number(type_node, "credits",
pool_cfg->pl_pools[j].
pl_credits) == NULL)
goto out;
if (!backup &&
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) {
if (backup) {
if (cYAML_create_number(pools_node, "enable",
pool_cfg->pl_routing) ==
NULL)
goto out;
goto add_buffer_section;
}
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;
}
add_buffer_section:
/* 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,
bool backup)
{
/*
* 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;
struct lnet_ioctl_element_msg_stats *msg_stats;
struct lnet_ioctl_peer_ni_hstats *hstats;
struct lnet_ioctl_construct_udsp_info udsp_info;
lnet_nid_t *nidp;
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
int i, j, k;
int l_errno = 0;
__u32 count;
__u32 size;
struct cYAML *root = NULL, *peer = NULL, *peer_ni = NULL,
*first_seq = NULL, *peer_root = NULL, *tmp = NULL,
*msg_statistics = NULL, *statistics = NULL,
*yhstats;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
struct lnet_process_id *list = NULL;
void *data = NULL;
void *lpni_data;
bool exist = false;
/* 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;
count = 1000;
size = count * sizeof(struct lnet_process_id);
list = malloc(size);
if (list == NULL) {
l_errno = ENOMEM;
goto out;
}
if (knid != NULL) {
list[0].nid = libcfs_str2nid(knid);
count = 1;
} else {
for (;;) {
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_size = size;
peer_info.prcfg_bulk = list;
l_errno = 0;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_PEER_LIST,
&peer_info);
count = peer_info.prcfg_count;
if (rc == 0)
break;
l_errno = errno;
if (l_errno != E2BIG) {
snprintf(err_str,
sizeof(err_str),
"\"cannot get peer list: %s\"",
strerror(l_errno));
rc = -l_errno;
goto out;
}
free(list);
size = peer_info.prcfg_size;
list = malloc(size);
if (list == NULL) {
l_errno = ENOMEM;
goto out;
}
}
}
size = 4096;
data = malloc(size);
if (data == NULL) {
l_errno = ENOMEM;
goto out;
}
for (i = 0; i < count; i++) {
for (;;) {
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_prim_nid = list[i].nid;
peer_info.prcfg_size = size;
peer_info.prcfg_bulk = data;
l_errno = 0;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_PEER_NI,
&peer_info);
if (rc == 0)
break;
l_errno = errno;
if (l_errno != E2BIG) {
snprintf(err_str,
sizeof(err_str),
"\"cannot get peer information: %s\"",
strerror(l_errno));
rc = -l_errno;
goto out;
}
free(data);
size = peer_info.prcfg_size;
data = malloc(size);
if (data == NULL) {
l_errno = ENOMEM;
goto out;
}
}
exist = true;
peer = cYAML_create_seq_item(peer_root);
if (peer == NULL)
goto out;
if (first_seq == NULL)
first_seq = 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;
/*
* print out the state of the peer only if details are
* requested
*/
if (detail >= 3) {
if (!backup &&
cYAML_create_number(peer, "peer state",
peer_info.prcfg_state)
== NULL)
goto out;
}
tmp = cYAML_create_seq(peer, "peer ni");
if (tmp == NULL)
goto out;
lpni_data = data;
for (j = 0; j < peer_info.prcfg_count; j++) {
nidp = lpni_data;
lpni_cri = (void*)nidp + sizeof(nidp);
lpni_stats = (void *)lpni_cri + sizeof(*lpni_cri);
msg_stats = (void *)lpni_stats + sizeof(*lpni_stats);
hstats = (void *)msg_stats + sizeof(*msg_stats);
lpni_data = (void *)hstats + sizeof(*hstats);
peer_ni = cYAML_create_seq_item(tmp);
if (peer_ni == NULL)
goto out;
if (cYAML_create_string(peer_ni, "nid",
libcfs_nid2str(*nidp))
== NULL)
goto out;
if (backup)
continue;
if (detail < 4)
goto continue_without_udsp_info;
LIBCFS_IOC_INIT_V2(udsp_info, cud_hdr);
udsp_info.cud_nid = *nidp;
udsp_info.cud_peer = true;
rc = l_ioctl(LNET_DEV_ID,
IOC_LIBCFS_GET_CONST_UDSP_INFO,
&udsp_info);
if (rc != 0) {
l_errno = errno;
goto continue_without_udsp_info;
}
rc = create_remote_udsp_info(&udsp_info, peer_ni);
if (rc) {
l_errno = errno;
goto out;
}
continue_without_udsp_info:
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, "refcount",
lpni_cri->cr_refcount) == NULL)
goto out;
statistics = cYAML_create_object(peer_ni, "statistics");
if (statistics == NULL)
goto out;
if (cYAML_create_number(statistics, "send_count",
lpni_stats->iel_send_count)
== NULL)
goto out;
if (cYAML_create_number(statistics, "recv_count",
lpni_stats->iel_recv_count)
== NULL)
goto out;
if (cYAML_create_number(statistics, "drop_count",
lpni_stats->iel_drop_count)
== NULL)
goto out;
if (detail < 2)
continue;
for (k = 0; k < 3; k++) {
struct lnet_ioctl_comm_count *counts;
msg_statistics = cYAML_create_object(peer_ni,
(char *) gmsg_stat_names[k]);
if (msg_statistics == NULL)
goto out;
counts = get_counts(msg_stats, k);
if (counts == NULL)
goto out;
if (!add_msg_stats_to_yaml_blk(msg_statistics,
counts))
goto out;
}
yhstats = cYAML_create_object(peer_ni, "health stats");
if (!yhstats)
goto out;
if (cYAML_create_number(yhstats, "health value",
hstats->hlpni_health_value)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "dropped",
hstats->hlpni_remote_dropped)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "timeout",
hstats->hlpni_remote_timeout)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "error",
hstats->hlpni_remote_error)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "network timeout",
hstats->hlpni_network_timeout)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "ping_count",
hstats->hlpni_ping_count)
== NULL)
goto out;
if (cYAML_create_number(yhstats, "next_ping",
hstats->hlpni_next_ping)
== NULL)
goto out;
}
}
/* 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:
free(list);
free(data);
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 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_list_peer(int seq_no,
struct cYAML **show_rc, struct cYAML **err_rc)
{
struct lnet_ioctl_peer_cfg peer_info;
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
__u32 count;
__u32 size;
int i = 0;
int l_errno = 0;
struct cYAML *root = NULL, *list_root = NULL, *first_seq = NULL;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
struct lnet_process_id *list = NULL;
memset(&peer_info, 0, sizeof(peer_info));
/* create struct cYAML root object */
root = cYAML_create_object(NULL, NULL);
if (root == NULL)
goto out;
list_root = cYAML_create_seq(root, "peer list");
if (list_root == NULL)
goto out;
count = 1000;
size = count * sizeof(struct lnet_process_id);
list = malloc(size);
if (list == NULL) {
l_errno = ENOMEM;
goto out;
}
for (;;) {
LIBCFS_IOC_INIT_V2(peer_info, prcfg_hdr);
peer_info.prcfg_hdr.ioc_len = sizeof(peer_info);
peer_info.prcfg_size = size;
peer_info.prcfg_bulk = list;
l_errno = 0;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_PEER_LIST, &peer_info);
count = peer_info.prcfg_count;
if (rc == 0)
break;
l_errno = errno;
if (l_errno != E2BIG) {
snprintf(err_str,
sizeof(err_str),
"\"cannot get peer list: %s\"",
strerror(l_errno));
rc = -l_errno;
goto out;
}
free(list);
size = peer_info.prcfg_size;
list = malloc(size);
if (list == NULL) {
l_errno = ENOMEM;
goto out;
}
}
/* count is now the actual number of ids in the list. */
for (i = 0; i < count; i++) {
if (cYAML_create_string(list_root, "nid",
libcfs_nid2str(list[i].nid))
== NULL)
goto out;
}
/* 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 (list != NULL)
free(list);
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(list_root);
free(root);
} else if (show_node == NULL) {
cYAML_insert_sibling((*show_rc)->cy_child,
list_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;
}
static void add_to_global(struct cYAML *show_rc, struct cYAML *node,
struct cYAML *root)
{
struct cYAML *show_node;
show_node = cYAML_get_object_item(show_rc, "global");
if (show_node != NULL)
cYAML_insert_sibling(show_node->cy_child,
node->cy_child);
else
cYAML_insert_sibling(show_rc->cy_child,
node);
free(root);
}
static int build_global_yaml_entry(char *err_str, int err_len, int seq_no,
char *name, __u64 value,
struct cYAML **show_rc,
struct cYAML **err_rc, int err)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
struct cYAML *root = NULL, *global = NULL;
if (err) {
rc = err;
goto out;
}
root = cYAML_create_object(NULL, NULL);
if (root == NULL)
goto out;
global = cYAML_create_object(root, "global");
if (global == NULL)
goto out;
if (cYAML_create_number(global, name,
value) == NULL)
goto out;
if (show_rc == NULL)
cYAML_print_tree(root);
snprintf(err_str, err_len, "\"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) {
add_to_global(*show_rc, global, root);
} else {
*show_rc = root;
}
cYAML_build_error(rc, seq_no, SHOW_CMD, "global", err_str, err_rc);
return rc;
}
static int ioctl_show_global_values(int ioc, int seq_no, char *name,
struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct lnet_ioctl_set_value data;
int rc;
int l_errno = 0;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
LIBCFS_IOC_INIT_V2(data, sv_hdr);
rc = l_ioctl(LNET_DEV_ID, ioc, &data);
if (rc != 0) {
l_errno = -errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot get %s: %s\"",
name, strerror(l_errno));
}
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no, name,
data.sv_value, show_rc, err_rc, l_errno);
}
int lustre_lnet_show_recov_intrv(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char val[LNET_MAX_STR_LEN];
int intrv = -1, l_errno = 0;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
rc = read_sysfs_file(modparam_path, "lnet_recovery_interval", val,
1, sizeof(val));
if (rc) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"cannot get recovery interval: %d\"", rc);
} else {
intrv = atoi(val);
}
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"recovery_interval", intrv, show_rc,
err_rc, l_errno);
}
int lustre_lnet_show_hsensitivity(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char val[LNET_MAX_STR_LEN];
int sen = -1, l_errno = 0;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
rc = read_sysfs_file(modparam_path, "lnet_health_sensitivity", val,
1, sizeof(val));
if (rc) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"cannot get health sensitivity: %d\"", rc);
} else {
sen = atoi(val);
}
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"health_sensitivity", sen, show_rc,
err_rc, l_errno);
}
int lustre_lnet_show_rtr_sensitivity(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char val[LNET_MAX_STR_LEN];
int sen = -1, l_errno = 0;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
rc = read_sysfs_file(modparam_path, "router_sensitivity_percentage", val,
1, sizeof(val));
if (rc) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"cannot get router sensitivity percentage: %d\"", rc);
} else {
sen = atoi(val);
}
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"router_sensitivity", sen, show_rc,
err_rc, l_errno);
}
int lustre_lnet_show_lnd_timeout(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
char val[LNET_MAX_STR_LEN];
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
int lnd_to = -1;
int l_errno = 0;
int rc;
int fd;
glob_t path;
rc = cfs_get_param_paths(&path, "lnet_lnd_timeout");
if (rc < 0) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"cannot get LND timeout: %d\"", rc);
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"lnd_timeout", lnd_to, show_rc,
err_rc, l_errno);
}
fd = open(path.gl_pathv[0], O_RDONLY);
if (fd < 0) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"error opening %s\"", path.gl_pathv[0]);
goto failed;
}
rc = read(fd, val, sizeof(val));
if (rc < 0)
l_errno = -errno;
close(fd);
if (rc < 0) {
snprintf(err_str, sizeof(err_str),
"\"error reading %s\"", path.gl_pathv[0]);
goto failed;
}
lnd_to = atoi(val);
failed:
cfs_free_param_data(&path);
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"lnd_timeout", lnd_to, show_rc,
err_rc, l_errno);
}
int lustre_lnet_show_transaction_to(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char val[LNET_MAX_STR_LEN];
int tto = -1, l_errno = 0;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
rc = read_sysfs_file(modparam_path, "lnet_transaction_timeout", val,
1, sizeof(val));
if (rc) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"cannot get transaction timeout: %d\"", rc);
} else {
tto = atoi(val);
}
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"transaction_timeout", tto, show_rc,
err_rc, l_errno);
}
int lustre_lnet_show_retry_count(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char val[LNET_MAX_STR_LEN];
int retry_count = -1, l_errno = 0;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
rc = read_sysfs_file(modparam_path, "lnet_retry_count", val,
1, sizeof(val));
if (rc) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"cannot get retry count: %d\"", rc);
} else {
retry_count = atoi(val);
}
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"retry_count", retry_count, show_rc,
err_rc, l_errno);
}
int lustre_lnet_calc_service_id(__u64 *service_id)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char val[LNET_MAX_STR_LEN];
int service_port = -1, l_errno = 0;
rc = read_sysfs_file(o2iblnd_modparam_path, "service", val,
1, sizeof(val));
if (rc) {
l_errno = errno;
fprintf(stderr, "error:\n msg: \"cannot get service port: %s (%d)\"\n",
strerror(l_errno), -l_errno);
return rc;
} else {
service_port = atoi(val);
}
*service_id = htobe64(((__u64)RDMA_PS_TCP << 16) + service_port);
return LUSTRE_CFG_RC_NO_ERR;
}
int lustre_lnet_setup_mrrouting(struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_NO_ERR;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
char *tmp_ptr, *tmp_ptr2;
char cmdpath[LNET_MAX_STR_LEN];
bool use_custom = false;
tmp_ptr = getenv("KSOCKLND_CONFIG");
if (tmp_ptr) {
tmp_ptr2 = strrchr(tmp_ptr, '/');
if (tmp_ptr2 && !strcmp(tmp_ptr2, "/ksocklnd-config")) {
snprintf(cmdpath, sizeof(cmdpath), "%s",
tmp_ptr);
use_custom = true;
}
}
if (!use_custom)
snprintf(cmdpath, sizeof(cmdpath),
"/usr/sbin/ksocklnd-config");
rc = system(cmdpath);
if (rc != 0) {
int l_errno = errno;
snprintf(err_str,
sizeof(err_str),
"\"failed to execute ksocklnd-config : %s\"",
strerror(l_errno));
rc = -l_errno;
}
cYAML_build_error(rc, -1, MANAGE_CMD, "setup-mrrouting", err_str,
err_rc);
return rc;
}
int lustre_lnet_setup_sysctl(struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char err_str[LNET_MAX_STR_LEN] = "\"success\"";
char *env_ptr, *tmp_ptr, *syscmd = "/usr/sbin/lnet-sysctl-config";
env_ptr = getenv("LNET_SYSCTL_CONFIG");
if (env_ptr) {
tmp_ptr = strrchr(env_ptr, '/');
if (tmp_ptr && !strcmp(tmp_ptr, "/lnet-sysctl-config"))
syscmd = env_ptr;
}
rc = system(syscmd);
if (rc != 0) {
rc = -errno;
snprintf(err_str,
sizeof(err_str),
"\"failed to execute lnet-sysctl-config : %s\"",
strerror(errno));
}
cYAML_build_error(rc, -1, MANAGE_CMD, "setup-sysctl", err_str,
err_rc);
return rc;
}
static int show_recovery_queue(enum lnet_health_type type, char *name,
int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct lnet_ioctl_recovery_list nid_list;
struct cYAML *root = NULL, *nids = NULL;
int rc, i;
char err_str[LNET_MAX_STR_LEN] = "failed to print recovery queue\n";
LIBCFS_IOC_INIT_V2(nid_list, rlst_hdr);
nid_list.rlst_type = type;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_RECOVERY_QUEUE, &nid_list);
if (rc) {
rc = errno;
goto out;
}
if (nid_list.rlst_num_nids == 0)
goto out;
root = cYAML_create_object(NULL, NULL);
if (root == NULL)
goto out;
nids = cYAML_create_object(root, name);
if (nids == NULL)
goto out;
rc = -EINVAL;
for (i = 0; i < nid_list.rlst_num_nids; i++) {
char nidenum[LNET_MAX_STR_LEN];
snprintf(nidenum, sizeof(nidenum), "nid-%d", i);
if (!cYAML_create_string(nids, nidenum,
libcfs_nid2str(nid_list.rlst_nid_array[i])))
goto out;
}
snprintf(err_str, sizeof(err_str), "success");
rc = 0;
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 net node, if one doesn't exist
* then insert one. Otherwise add to the one there
*/
show_node = cYAML_get_object_item(*show_rc, name);
if (show_node != NULL && cYAML_is_sequence(show_node)) {
cYAML_insert_child(show_node, nids);
free(nids);
free(root);
} else if (show_node == NULL) {
cYAML_insert_sibling((*show_rc)->cy_child,
nids);
free(root);
} else {
cYAML_free_tree(root);
}
} else {
*show_rc = root;
}
cYAML_build_error(rc, seq_no, SHOW_CMD, name, err_str, err_rc);
return rc;
}
int lustre_lnet_show_peer_debug_info(char *peer_nid, int seq_no,
struct cYAML **err_rc)
{
struct libcfs_ioctl_data data;
int rc;
char err_str[LNET_MAX_STR_LEN] = "Error";
lnet_nid_t pnid = LNET_NID_ANY;
if (!peer_nid) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, LNET_MAX_STR_LEN,
"--nid must be specified");
goto out;
}
pnid = libcfs_str2nid(peer_nid);
if (pnid == LNET_NID_ANY) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, LNET_MAX_STR_LEN,
"\"badly formatted primary NID: %s\"", peer_nid);
goto out;
}
LIBCFS_IOC_INIT(data);
data.ioc_net = LNET_NIDNET(pnid);
data.ioc_nid = pnid;
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_PEER, &data);
out:
if (rc != 0)
cYAML_build_error(rc, seq_no, "debug", "peer", err_str,
err_rc);
return rc;
}
int lustre_lnet_show_local_ni_recovq(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
return show_recovery_queue(LNET_HEALTH_TYPE_LOCAL_NI, "local NI recovery",
seq_no, show_rc, err_rc);
}
int lustre_lnet_show_peer_ni_recovq(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
return show_recovery_queue(LNET_HEALTH_TYPE_PEER_NI, "peer NI recovery",
seq_no, show_rc, err_rc);
}
int lustre_lnet_show_response_tracking(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char val[LNET_MAX_STR_LEN];
int rsp_tracking = -1, l_errno = 0;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
rc = read_sysfs_file(modparam_path, "lnet_response_tracking", val,
1, sizeof(val));
if (rc) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"cannot get lnet_response_tracking value: %d\"", rc);
} else {
rsp_tracking = atoi(val);
}
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"response_tracking", rsp_tracking,
show_rc, err_rc, l_errno);
}
int lustre_lnet_show_recovery_limit(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char val[LNET_MAX_STR_LEN];
int recov_limit = -1, l_errno = 0;
char err_str[LNET_MAX_STR_LEN];
snprintf(err_str, sizeof(err_str), "\"out of memory\"");
rc = read_sysfs_file(modparam_path, "lnet_recovery_limit", val,
1, sizeof(val));
if (rc) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"cannot get lnet_recovery_limit value: %d\"", rc);
} else {
recov_limit = atoi(val);
}
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"recovery_limit", recov_limit,
show_rc, err_rc, l_errno);
}
int lustre_lnet_show_max_recovery_ping_interval(int seq_no,
struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char val[LNET_MAX_STR_LEN];
int interval = -1, l_errno = 0;
char err_str[LNET_MAX_STR_LEN];
snprintf(err_str, sizeof(err_str), "\"out of memory\"");
rc = read_sysfs_file(modparam_path, "lnet_max_recovery_ping_interval",
val, 1, sizeof(val));
if (rc) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"cannot get lnet_max_recovery_ping_interval value: %d\"",
rc);
} else {
interval = atoi(val);
}
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"max_recovery_ping_interval", interval,
show_rc, err_rc, l_errno);
}
int lustre_lnet_show_max_intf(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char val[LNET_MAX_STR_LEN];
int max_intf = -1, l_errno = 0;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
rc = read_sysfs_file(modparam_path, "lnet_interfaces_max", val,
1, sizeof(val));
if (rc) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"cannot get max interfaces: %d\"", rc);
} else {
max_intf = atoi(val);
}
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"max_interfaces", max_intf, show_rc,
err_rc, l_errno);
}
int lustre_lnet_show_discovery(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char val[LNET_MAX_STR_LEN];
int discovery = -1, l_errno = 0;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
rc = read_sysfs_file(modparam_path, "lnet_peer_discovery_disabled", val,
1, sizeof(val));
if (rc) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"cannot get discovery setting: %d\"", rc);
} else {
/*
* The kernel stores a discovery disabled value. User space
* shows whether discovery is enabled. So the value must be
* inverted.
*/
discovery = !atoi(val);
}
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"discovery", discovery, show_rc,
err_rc, l_errno);
}
int lustre_lnet_show_drop_asym_route(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
int rc = LUSTRE_CFG_RC_OUT_OF_MEM;
char val[LNET_MAX_STR_LEN];
int drop_asym_route = -1, l_errno = 0;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
rc = read_sysfs_file(modparam_path, "lnet_drop_asym_route", val,
1, sizeof(val));
if (rc) {
l_errno = -errno;
snprintf(err_str, sizeof(err_str),
"\"cannot get drop asym route setting: %d\"", rc);
} else {
drop_asym_route = atoi(val);
}
return build_global_yaml_entry(err_str, sizeof(err_str), seq_no,
"drop_asym_route", drop_asym_route,
show_rc, err_rc, l_errno);
}
int lustre_lnet_show_numa_range(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
return ioctl_show_global_values(IOC_LIBCFS_GET_NUMA_RANGE, seq_no,
"numa_range", show_rc, err_rc);
}
int lustre_lnet_show_stats(int seq_no, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct lnet_ioctl_lnet_stats data;
struct lnet_counters *cntrs;
int rc;
char err_str[LNET_MAX_STR_LEN] = "\"out of memory\"";
struct cYAML *root = NULL, *stats = NULL;
LIBCFS_IOC_INIT_V2(data, st_hdr);
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_GET_LNET_STATS, &data);
if (rc) {
snprintf(err_str,
sizeof(err_str),
"\"cannot get lnet statistics: %s\"",
strerror(-rc));
goto out;
}
rc = LUSTRE_CFG_RC_OUT_OF_MEM;
cntrs = &data.st_cntrs;
root = cYAML_create_object(NULL, NULL);
if (!root)
goto out;
stats = cYAML_create_object(root, "statistics");
if (!stats)
goto out;
if (!cYAML_create_number(stats, "msgs_alloc",
cntrs->lct_common.lcc_msgs_alloc))
goto out;
if (!cYAML_create_number(stats, "msgs_max",
cntrs->lct_common.lcc_msgs_max))
goto out;
if (!cYAML_create_number(stats, "rst_alloc",
cntrs->lct_health.lch_rst_alloc))
goto out;
if (!cYAML_create_number(stats, "errors",
cntrs->lct_common.lcc_errors))
goto out;
if (!cYAML_create_number(stats, "send_count",
cntrs->lct_common.lcc_send_count))
goto out;
if (!cYAML_create_number(stats, "resend_count",
cntrs->lct_health.lch_resend_count))
goto out;
if (!cYAML_create_number(stats, "response_timeout_count",
cntrs->lct_health.lch_response_timeout_count))
goto out;
if (!cYAML_create_number(stats, "local_interrupt_count",
cntrs->lct_health.lch_local_interrupt_count))
goto out;
if (!cYAML_create_number(stats, "local_dropped_count",
cntrs->lct_health.lch_local_dropped_count))
goto out;
if (!cYAML_create_number(stats, "local_aborted_count",
cntrs->lct_health.lch_local_aborted_count))
goto out;
if (!cYAML_create_number(stats, "local_no_route_count",
cntrs->lct_health.lch_local_no_route_count))
goto out;
if (!cYAML_create_number(stats, "local_timeout_count",
cntrs->lct_health.lch_local_timeout_count))
goto out;
if (!cYAML_create_number(stats, "local_error_count",
cntrs->lct_health.lch_local_error_count))
goto out;
if (!cYAML_create_number(stats, "remote_dropped_count",
cntrs->lct_health.lch_remote_dropped_count))
goto out;
if (!cYAML_create_number(stats, "remote_error_count",
cntrs->lct_health.lch_remote_error_count))
goto out;
if (!cYAML_create_number(stats, "remote_timeout_count",
cntrs->lct_health.lch_remote_timeout_count))
goto out;
if (!cYAML_create_number(stats, "network_timeout_count",
cntrs->lct_health.lch_network_timeout_count))
goto out;
if (!cYAML_create_number(stats, "failed_resends",
cntrs->lct_health.lch_failed_resends))
goto out;
if (!cYAML_create_number(stats, "successful_resends",
cntrs->lct_health.lch_successful_resends))
goto out;
if (!cYAML_create_number(stats, "recv_count",
cntrs->lct_common.lcc_recv_count))
goto out;
if (!cYAML_create_number(stats, "route_count",
cntrs->lct_common.lcc_route_count))
goto out;
if (!cYAML_create_number(stats, "drop_count",
cntrs->lct_common.lcc_drop_count))
goto out;
if (!cYAML_create_number(stats, "send_length",
cntrs->lct_common.lcc_send_length))
goto out;
if (!cYAML_create_number(stats, "recv_length",
cntrs->lct_common.lcc_recv_length))
goto out;
if (!cYAML_create_number(stats, "route_length",
cntrs->lct_common.lcc_route_length))
goto out;
if (!cYAML_create_number(stats, "drop_length",
cntrs->lct_common.lcc_drop_length))
goto out;
if (!show_rc)
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;
}
int lustre_lnet_reset_stats(int seq_no, struct cYAML **err_rc)
{
struct libcfs_ioctl_data data;
int rc = LUSTRE_CFG_RC_NO_ERR;
int l_errno;
char err_str[LNET_MAX_STR_LEN];
LIBCFS_IOC_INIT(data);
rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_RESET_LNET_STATS, &data);
if (rc) {
l_errno = errno;
snprintf(err_str,
sizeof(err_str),
"\"cannot reset lnet statistics: %s\"",
strerror(l_errno));
rc = -l_errno;
} else {
snprintf(err_str, sizeof(err_str), "success");
rc = LUSTRE_CFG_RC_NO_ERR;
}
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);
}
/*
* interfaces:
* 0: <intf_name>['['<expr>']']
* 1: <intf_name>['['<expr>']']
*/
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 cYAML *tun, *item;
tun = cYAML_get_object_child(tree, "tunables");
if (tun != NULL) {
item = cYAML_get_object_item(tun, "peer_timeout");
if (item != NULL)
tunables->lct_peer_timeout = item->cy_valueint;
else
tunables->lct_peer_timeout = -1;
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;
return true;
}
return false;
}
#define FOUND_CMN_TUNABLES 1
#define FOUND_LND_TUNABLES 2
static int
yaml_extract_tunables(struct cYAML *tree,
struct lnet_ioctl_config_lnd_tunables *tunables,
__u32 net_type)
{
int tunables_found_mask = 0;
if (yaml_extract_cmn_tunables(tree, &tunables->lt_cmn))
tunables_found_mask |= FOUND_CMN_TUNABLES;
if (lustre_yaml_extract_lnd_tunables(tree, net_type,
&tunables->lt_tun))
tunables_found_mask |= FOUND_LND_TUNABLES;
return tunables_found_mask;
}
static void
yaml_extract_cpt(struct cYAML *tree,
struct cfs_expr_list **global_cpts)
{
int rc;
struct cYAML *smp;
smp = cYAML_get_object_child(tree, "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;
}
}
/*
* net:
* - net type: <net>[<NUM>]
* local NI(s):
* - interfaces:
* 0: <intf_name>['['<expr>']']
* 1: <intf_name>['['<expr>']']
* tunables:
* peer_timeout: <NUM>
* peer_credits: <NUM>
* peer_buffer_credits: <NUM>
* credits: <NUM>
* lnd tunables:
* <lnd_param1>: <val>
* <lnd_param2>: <val>
* <...>
*
* 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,
*local_ni = NULL;
int num_entries = 0, rc = 0;
struct lnet_dlc_network_descr nw_descr;
struct cfs_expr_list *intf_cpts = NULL;
struct lnet_ioctl_config_lnd_tunables tunables, net_tunables;
int tun_found_mask, net_tun_found_mask;
memset(&net_tunables, 0, sizeof(net_tunables));
/* Use LND defaults */
net_tunables.lt_cmn.lct_peer_timeout = -1;
net_tunables.lt_cmn.lct_peer_tx_credits = -1;
net_tunables.lt_cmn.lct_peer_rtr_credits = -1;
net_tunables.lt_cmn.lct_max_tx_credits = -1;
ip2net = cYAML_get_object_item(tree, "ip2net");
net = cYAML_get_object_item(tree, "net type");
/*
* 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;
if (net)
nw_descr.nw_id = libcfs_str2net(net->cy_valuestring);
else
nw_descr.nw_id = LOLND;
net_tun_found_mask = yaml_extract_tunables(tree, &net_tunables,
LNET_NETTYP(nw_descr.nw_id));
seq_no = cYAML_get_object_item(tree, "seq_no");
while (cYAML_get_next_seq_item(local_nis, &local_ni) != NULL) {
INIT_LIST_HEAD(&nw_descr.network_on_rule);
INIT_LIST_HEAD(&nw_descr.nw_intflist);
intf = cYAML_get_object_item(local_ni, "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;
}
memset(&tunables, 0, sizeof(tunables));
/* Use LND defaults */
tunables.lt_cmn.lct_peer_timeout = -1;
tunables.lt_cmn.lct_peer_tx_credits = -1;
tunables.lt_cmn.lct_peer_rtr_credits = -1;
tunables.lt_cmn.lct_max_tx_credits = -1;
tun_found_mask = yaml_extract_tunables(local_ni, &tunables,
LNET_NETTYP(nw_descr.nw_id));
if (!(tun_found_mask & FOUND_CMN_TUNABLES) &&
(net_tun_found_mask & FOUND_CMN_TUNABLES)) {
tunables.lt_cmn = net_tunables.lt_cmn;
tun_found_mask |= FOUND_CMN_TUNABLES;
}
if (!(tun_found_mask & FOUND_LND_TUNABLES) &&
(net_tun_found_mask & FOUND_LND_TUNABLES)) {
tunables.lt_tun = net_tunables.lt_tun;
tun_found_mask |= FOUND_LND_TUNABLES;
}
yaml_extract_cpt(local_ni, &intf_cpts);
rc = lustre_lnet_config_ni(&nw_descr, intf_cpts,
(ip2net) ? ip2net->cy_valuestring : NULL,
(tun_found_mask) ? &tunables : NULL,
(seq_no) ? seq_no->cy_valueint : -1,
err_rc);
if (intf_cpts != NULL) {
cfs_expr_list_free(intf_cpts);
intf_cpts = NULL;
}
if (rc != 0)
return rc;
}
return rc;
}
/*
* ip2nets:
* - net-spec: <net>[NUM]
* interfaces:
* 0: <intf name>['['<expr>']']
* 1: <intf name>['['<expr>']']
* ip-range:
* 0: <expr.expr.expr.expr>
* 1: <expr.expr.expr.expr>
* tunables:
* peer_timeout: <NUM>
* peer_credits: <NUM>
* peer_buffer_credits: <NUM>
* credits: <NUM>
* lnd tunables:
* <lnd_param1>: <val>
* <lnd_param2>: <val>
* <...>
*/
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_NET_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,
LNET_NETTYP(ip2nets.ip2nets_net.nw_id));
yaml_extract_cpt(tree, &global_cpts);
rc = lustre_lnet_config_ip2nets(&ip2nets,
(found) ? &tunables : NULL,
global_cpts,
(seq_no) ? seq_no->cy_valueint : -1,
err_rc);
if (global_cpts != NULL)
cfs_expr_list_free(global_cpts);
/*
* 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;
}
/* Create a nidstring parseable by the nidstrings library from the nid
* information encoded in the CYAML structure.
* NOTE: Caller must free memory allocated to nidstr
*/
static int yaml_nids2nidstr(struct cYAML *nids_entry, char **nidstr,
char *prim_nid, int cmd)
{
int num_strs = 0, rc;
size_t buf_size, buf_pos, nidstr_len = 0;
char *buffer;
struct cYAML *child = NULL, *entry = NULL;
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 (prim_nid &&
(strcmp(entry->cy_valuestring, prim_nid) == 0)) {
if (cmd == LNETCTL_DEL_CMD) {
/*
* 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 LUSTRE_CFG_RC_NO_ERR;
} else {
continue;
}
}
/*
* + 1 for the space separating each string, and
* accounts for the terminating null char
*/
nidstr_len += strlen(entry->cy_valuestring) + 1;
num_strs++;
}
}
if (num_strs == 0 && !prim_nid)
return LUSTRE_CFG_RC_MISSING_PARAM;
else if (num_strs == 0) /* Only the primary nid was given to add/del */
return LUSTRE_CFG_RC_NO_ERR;
buffer = malloc(nidstr_len);
if (!buffer)
return LUSTRE_CFG_RC_OUT_OF_MEM;
/* now grab all the nids */
rc = 0;
buf_pos = 0;
buf_size = nidstr_len;
child = NULL;
while (cYAML_get_next_seq_item(nids_entry, &child)) {
entry = cYAML_get_object_item(child, "nid");
if (!entry || !entry->cy_valuestring)
continue;
if (prim_nid &&
(strcmp(entry->cy_valuestring, prim_nid) == 0))
continue;
if (buf_pos) {
rc = snprintf(buffer + buf_pos, buf_size, " ");
buf_pos += (rc < buf_size) ? rc : buf_size;
buf_size = nidstr_len - buf_pos;
}
rc = snprintf(buffer + buf_pos, buf_size, "%s",
entry->cy_valuestring);
buf_pos += (rc < buf_size) ? rc : buf_size;
buf_size = nidstr_len - buf_pos;
}
*nidstr = buffer;
return LUSTRE_CFG_RC_NO_ERR;
}
static int handle_yaml_peer_common(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc, int cmd)
{
int rc, num_nids = 0, seqn;
bool mr_value = false;
char *nidstr = NULL, *prim_nidstr;
char err_str[LNET_MAX_STR_LEN];
struct cYAML *seq_no, *prim_nid, *mr, *peer_nis;
lnet_nid_t lnet_nidlist[LNET_MAX_NIDS_PER_PEER];
lnet_nid_t pnid = LNET_NID_ANY;
int force = 0;
seq_no = cYAML_get_object_item(tree, "seq_no");
seqn = seq_no ? seq_no->cy_valueint : -1;
prim_nid = cYAML_get_object_item(tree, "primary nid");
peer_nis = cYAML_get_object_item(tree, "peer ni");
if (!prim_nid) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, LNET_MAX_STR_LEN,
"the 'primary nid' must be specified");
goto failed;
}
prim_nidstr = prim_nid->cy_valuestring;
/* if the provided primary NID is bad, no need to go any further */
pnid = libcfs_str2nid(prim_nidstr);
if (pnid == LNET_NID_ANY) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, LNET_MAX_STR_LEN,
"\"badly formatted primary NID: %s\"", prim_nidstr);
goto failed;
}
rc = yaml_nids2nidstr(peer_nis, &nidstr, prim_nidstr, cmd);
if (rc == LUSTRE_CFG_RC_MISSING_PARAM) {
snprintf(err_str, LNET_MAX_STR_LEN,
"No nids defined in YAML block");
goto failed;
} else if (rc == LUSTRE_CFG_RC_OUT_OF_MEM) {
snprintf(err_str, LNET_MAX_STR_LEN, "out of memory");
goto failed;
} else if (rc != LUSTRE_CFG_RC_NO_ERR) {
snprintf(err_str, LNET_MAX_STR_LEN,
"Unrecognized error %d", rc);
goto failed;
}
num_nids = 0;
if (nidstr) {
num_nids = lustre_lnet_parse_nidstr(nidstr, lnet_nidlist,
LNET_MAX_NIDS_PER_PEER,
err_str);
if (num_nids < 0) {
rc = num_nids;
goto failed;
}
}
if (cmd == LNETCTL_ADD_CMD) {
mr = cYAML_get_object_item(tree, "Multi-Rail");
mr_value = true;
if (mr && mr->cy_valuestring) {
if (strcmp(mr->cy_valuestring, "False") == 0)
mr_value = false;
else if (strcmp(mr->cy_valuestring, "True") != 0) {
rc = LUSTRE_CFG_RC_BAD_PARAM;
snprintf(err_str, LNET_MAX_STR_LEN,
"Multi-Rail must be set to 'True' or 'False' found '%s'",
mr->cy_valuestring);
goto failed;
}
}
}
rc = lustre_lnet_mod_peer_nidlist(pnid, lnet_nidlist, cmd,
num_nids, mr_value, force,
seqn, err_rc);
failed:
if (nidstr)
free(nidstr);
if (rc != LUSTRE_CFG_RC_NO_ERR)
cYAML_build_error(rc, seqn, "peer",
cmd == LNETCTL_ADD_CMD ? ADD_CMD : DEL_CMD,
err_str, err_rc);
return rc;
}
static int handle_yaml_config_peer(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
return handle_yaml_peer_common(tree, show_rc, err_rc, LNETCTL_ADD_CMD);
}
static int handle_yaml_del_peer(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
return handle_yaml_peer_common(tree, show_rc, err_rc, LNETCTL_DEL_CMD);
}
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_config_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_config_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, false);
}
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 type");
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, false);
}
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, false);
}
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, false);
}
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);
}
static int handle_yaml_del_udsp(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *seq_no, *idx;
seq_no = cYAML_get_object_item(tree, "seq_no");
idx = cYAML_get_object_item(tree, "idx");
return lustre_lnet_del_udsp(idx ? idx->cy_valueint : -1,
seq_no ? seq_no->cy_valueint : -1,
err_rc);
}
static int handle_yaml_config_udsp(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *seq_no, *src, *rte, *dst, *prio, *idx;
union lnet_udsp_action action;
seq_no = cYAML_get_object_item(tree, "seq_no");
src = cYAML_get_object_item(tree, "src");
rte = cYAML_get_object_item(tree, "rte");
dst = cYAML_get_object_item(tree, "dst");
prio = cYAML_get_object_item(tree, "priority");
idx = cYAML_get_object_item(tree, "idx");
action.udsp_priority = prio ? prio->cy_valueint : -1;
return lustre_lnet_add_udsp(src ? src->cy_valuestring : NULL,
dst ? dst->cy_valuestring : NULL,
rte ? rte->cy_valuestring : NULL,
prio ? "priority" : "",
&action,
idx ? idx->cy_valueint : -1,
seq_no ? seq_no->cy_valueint : -1,
err_rc);
}
static int handle_yaml_show_udsp(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *seq_no;
struct cYAML *idx;
seq_no = cYAML_get_object_item(tree, "seq_no");
idx = cYAML_get_object_item(tree, "idx");
return lustre_lnet_show_udsp(idx ? idx->cy_valueint : -1,
seq_no ? seq_no->cy_valueint : -1,
show_rc, err_rc);
}
static int handle_yaml_config_global_settings(struct cYAML *tree,
struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *max_intf, *numa, *discovery, *retry, *tto, *seq_no,
*sen, *recov, *rsen, *drop_asym_route, *rsp_tracking,
*recov_limit;
int rc = 0;
seq_no = cYAML_get_object_item(tree, "seq_no");
max_intf = cYAML_get_object_item(tree, "max_interfaces");
if (!max_intf) /* try legacy name */
max_intf = cYAML_get_object_item(tree, "max_intf");
if (max_intf)
rc = lustre_lnet_config_max_intf(max_intf->cy_valueint,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
numa = cYAML_get_object_item(tree, "numa_range");
if (numa)
rc = lustre_lnet_config_numa_range(numa->cy_valueint,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
discovery = cYAML_get_object_item(tree, "discovery");
if (discovery)
rc = lustre_lnet_config_discovery(discovery->cy_valueint,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
drop_asym_route = cYAML_get_object_item(tree, "drop_asym_route");
if (drop_asym_route)
rc = lustre_lnet_config_drop_asym_route(
drop_asym_route->cy_valueint,
seq_no ? seq_no->cy_valueint : -1,
err_rc);
retry = cYAML_get_object_item(tree, "retry_count");
if (retry)
rc = lustre_lnet_config_retry_count(retry->cy_valueint,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
tto = cYAML_get_object_item(tree, "transaction_timeout");
if (tto)
rc = lustre_lnet_config_transaction_to(tto->cy_valueint,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
sen = cYAML_get_object_item(tree, "health_sensitivity");
if (sen)
rc = lustre_lnet_config_hsensitivity(sen->cy_valueint,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
recov = cYAML_get_object_item(tree, "recovery_interval");
if (recov)
rc = lustre_lnet_config_recov_intrv(recov->cy_valueint,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
rsen = cYAML_get_object_item(tree, "router_sensitivity");
if (rsen)
rc = lustre_lnet_config_rtr_sensitivity(rsen->cy_valueint,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
rsp_tracking = cYAML_get_object_item(tree, "response_tracking");
if (rsp_tracking)
rc = lustre_lnet_config_response_tracking(rsp_tracking->cy_valueint,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
recov_limit = cYAML_get_object_item(tree, "recovery_limit");
if (recov_limit)
rc = lustre_lnet_config_recovery_limit(recov_limit->cy_valueint,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
return rc;
}
static int handle_yaml_del_global_settings(struct cYAML *tree,
struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *max_intf, *numa, *discovery, *seq_no, *drop_asym_route;
int rc = 0;
seq_no = cYAML_get_object_item(tree, "seq_no");
max_intf = cYAML_get_object_item(tree, "max_interfaces");
if (!max_intf) /* try legacy name */
max_intf = cYAML_get_object_item(tree, "max_intf");
if (max_intf)
rc = lustre_lnet_config_max_intf(LNET_INTERFACES_MAX_DEFAULT,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
numa = cYAML_get_object_item(tree, "numa_range");
if (numa)
rc = lustre_lnet_config_numa_range(0,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
/* peer discovery is enabled by default */
discovery = cYAML_get_object_item(tree, "discovery");
if (discovery)
rc = lustre_lnet_config_discovery(1,
seq_no ? seq_no->cy_valueint
: -1,
err_rc);
/* asymmetrical route messages are accepted by default */
drop_asym_route = cYAML_get_object_item(tree, "drop_asym_route");
if (drop_asym_route)
rc = lustre_lnet_config_drop_asym_route(
0, seq_no ? seq_no->cy_valueint : -1, err_rc);
return rc;
}
static int handle_yaml_show_global_settings(struct cYAML *tree,
struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *max_intf, *numa, *discovery, *retry, *tto, *seq_no,
*sen, *recov, *rsen, *drop_asym_route, *rsp_tracking,
*recov_limit;
int rc = 0;
seq_no = cYAML_get_object_item(tree, "seq_no");
max_intf = cYAML_get_object_item(tree, "max_interfaces");
if (!max_intf) /* try legacy name */
max_intf = cYAML_get_object_item(tree, "max_intf");
if (max_intf)
rc = lustre_lnet_show_max_intf(seq_no ? seq_no->cy_valueint
: -1,
show_rc, err_rc);
numa = cYAML_get_object_item(tree, "numa_range");
if (numa)
rc = lustre_lnet_show_numa_range(seq_no ? seq_no->cy_valueint
: -1,
show_rc, err_rc);
discovery = cYAML_get_object_item(tree, "discovery");
if (discovery)
rc = lustre_lnet_show_discovery(seq_no ? seq_no->cy_valueint
: -1,
show_rc, err_rc);
drop_asym_route = cYAML_get_object_item(tree, "drop_asym_route");
if (drop_asym_route)
rc = lustre_lnet_show_drop_asym_route(
seq_no ? seq_no->cy_valueint : -1,
show_rc, err_rc);
retry = cYAML_get_object_item(tree, "retry_count");
if (retry)
rc = lustre_lnet_show_retry_count(seq_no ? seq_no->cy_valueint
: -1,
show_rc, err_rc);
tto = cYAML_get_object_item(tree, "transaction_timeout");
if (tto)
rc = lustre_lnet_show_transaction_to(seq_no ? seq_no->cy_valueint
: -1,
show_rc, err_rc);
sen = cYAML_get_object_item(tree, "health_sensitivity");
if (sen)
rc = lustre_lnet_show_hsensitivity(seq_no ? seq_no->cy_valueint
: -1,
show_rc, err_rc);
recov = cYAML_get_object_item(tree, "recovery_interval");
if (recov)
rc = lustre_lnet_show_recov_intrv(seq_no ? seq_no->cy_valueint
: -1,
show_rc, err_rc);
rsen = cYAML_get_object_item(tree, "router_sensitivity");
if (rsen)
rc = lustre_lnet_show_hsensitivity(seq_no ? seq_no->cy_valueint
: -1,
show_rc, err_rc);
rsp_tracking = cYAML_get_object_item(tree, "response_tracking");
if (rsp_tracking)
rc = lustre_lnet_show_response_tracking(seq_no ?
seq_no->cy_valueint :
-1,
show_rc, err_rc);
recov_limit = cYAML_get_object_item(tree, "recovery_limit");
if (recov_limit)
rc = lustre_lnet_show_recovery_limit(seq_no ?
seq_no->cy_valueint :
-1,
show_rc, err_rc);
return rc;
}
static int handle_yaml_ping(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *seq_no, *nid, *timeout, *src_nid;
seq_no = cYAML_get_object_item(tree, "seq_no");
nid = cYAML_get_object_item(tree, "primary nid");
timeout = cYAML_get_object_item(tree, "timeout");
src_nid = cYAML_get_object_item(tree, "source_nid");
return lustre_lnet_ping_nid((nid) ? nid->cy_valuestring : NULL,
(src_nid) ? src_nid->cy_valuestring : NULL,
(timeout) ? timeout->cy_valueint : 1000,
(seq_no) ? seq_no->cy_valueint : -1,
show_rc, err_rc);
}
static int handle_yaml_discover(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
struct cYAML *seq_no, *nid, *force;
seq_no = cYAML_get_object_item(tree, "seq_no");
nid = cYAML_get_object_item(tree, "primary nid");
force = cYAML_get_object_item(tree, "force");
return lustre_lnet_discover_nid((nid) ? nid->cy_valuestring : NULL,
(force) ? force->cy_valueint : 0,
(seq_no) ? seq_no->cy_valueint : -1,
show_rc, err_rc);
}
static int handle_yaml_no_op(struct cYAML *tree, struct cYAML **show_rc,
struct cYAML **err_rc)
{
return LUSTRE_CFG_RC_NO_ERR;
}
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 = "statistics", .cb = handle_yaml_no_op },
{ .name = "global", .cb = handle_yaml_config_global_settings},
{ .name = "numa", .cb = handle_yaml_config_numa },
{ .name = "ping", .cb = handle_yaml_no_op },
{ .name = "discover", .cb = handle_yaml_no_op },
{ .name = "udsp", .cb = handle_yaml_config_udsp },
{ .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 = "ip2nets", .cb = handle_yaml_no_op },
{ .name = "peer", .cb = handle_yaml_del_peer },
{ .name = "routing", .cb = handle_yaml_del_routing },
{ .name = "buffers", .cb = handle_yaml_no_op },
{ .name = "statistics", .cb = handle_yaml_no_op },
{ .name = "global", .cb = handle_yaml_del_global_settings},
{ .name = "numa", .cb = handle_yaml_del_numa },
{ .name = "ping", .cb = handle_yaml_no_op },
{ .name = "discover", .cb = handle_yaml_no_op },
{ .name = "udsp", .cb = handle_yaml_del_udsp },
{ .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 = "peer", .cb = handle_yaml_show_peers },
{ .name = "ip2nets", .cb = handle_yaml_no_op },
{ .name = "routing", .cb = handle_yaml_show_routing },
{ .name = "buffers", .cb = handle_yaml_show_routing },
{ .name = "statistics", .cb = handle_yaml_show_stats },
{ .name = "global", .cb = handle_yaml_show_global_settings},
{ .name = "numa", .cb = handle_yaml_show_numa },
{ .name = "ping", .cb = handle_yaml_no_op },
{ .name = "discover", .cb = handle_yaml_no_op },
{ .name = "udsp", .cb = handle_yaml_show_udsp },
{ .name = NULL } };
static struct lookup_cmd_hdlr_tbl lookup_exec_tbl[] = {
{ .name = "route", .cb = handle_yaml_no_op },
{ .name = "net", .cb = handle_yaml_no_op },
{ .name = "peer", .cb = handle_yaml_no_op },
{ .name = "ip2nets", .cb = handle_yaml_no_op },
{ .name = "routing", .cb = handle_yaml_no_op },
{ .name = "buffers", .cb = handle_yaml_no_op },
{ .name = "statistics", .cb = handle_yaml_no_op },
{ .name = "global", .cb = handle_yaml_no_op },
{ .name = "numa", .cb = handle_yaml_no_op },
{ .name = "ping", .cb = handle_yaml_ping },
{ .name = "discover", .cb = handle_yaml_discover },
{ .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, int len,
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(NULL, f, len, 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, int len, struct cYAML **err_rc)
{
return lustre_yaml_cb_helper(f, len, lookup_config_tbl,
NULL, err_rc);
}
int lustre_yaml_del(char *f, int len, struct cYAML **err_rc)
{
return lustre_yaml_cb_helper(f, len, lookup_del_tbl,
NULL, err_rc);
}
int lustre_yaml_show(char *f, int len, struct cYAML **show_rc,
struct cYAML **err_rc)
{
return lustre_yaml_cb_helper(f, len, lookup_show_tbl,
show_rc, err_rc);
}
int lustre_yaml_exec(char *f, int len, struct cYAML **show_rc,
struct cYAML **err_rc)
{
return lustre_yaml_cb_helper(f, len, lookup_exec_tbl,
show_rc, err_rc);
}
static int
val_to_str(char *buf, int buf_size, const void *val, int size,
bool is_unsigned)
{
int rc = 0;
if (is_unsigned) {
switch (size) {
case sizeof(__u8):
rc = snprintf(buf, buf_size, "%u", *((__u8 *)val));
break;
case sizeof(__u16):
rc = snprintf(buf, buf_size, "%u", *((__u16 *)val));
break;
case sizeof(__u32):
rc = snprintf(buf, buf_size, "%u", *((__u32 *)val));
break;
case sizeof(__u64):
rc = snprintf(buf, buf_size, "%llu", *((__u64 *)val));
break;
default:
return -EINVAL;
}
} else {
switch (size) {
case sizeof(__s8):
rc = snprintf(buf, buf_size, "%d", *((__s8 *)val));
break;
case sizeof(__s16):
rc = snprintf(buf, buf_size, "%d", *((__s16 *)val));
break;
case sizeof(__s32):
rc = snprintf(buf, buf_size, "%d", *((__s32 *)val));
break;
case sizeof(__s64):
rc = snprintf(buf, buf_size, "%lld", *((__s64 *)val));
break;
default:
return -EINVAL;
}
}
return (rc >= 0 && rc < buf_size) ? 0 : -EOVERFLOW;
}
static int
lnet_yaml_event_helper(yaml_event_t *event, yaml_emitter_t *emitter,
const char *key, yaml_char_t *tag, const void *val,
int size, bool is_unsigned)
{
int rc;
yaml_scalar_event_initialize(event, NULL,
(yaml_char_t *)YAML_STR_TAG,
(yaml_char_t *)key,
strlen(key), 1, 0,
YAML_PLAIN_SCALAR_STYLE);
rc = yaml_emitter_emit(emitter, event);
if (rc == 0)
return rc;
if (strcmp((char *)tag, YAML_INT_TAG) == 0) {
char num[INT_STRING_LEN];
if (val_to_str(num, INT_STRING_LEN, val, size, is_unsigned))
return 0;
yaml_scalar_event_initialize(event, NULL,
(yaml_char_t *)YAML_INT_TAG,
(yaml_char_t *)num,
strlen(num), 1, 0,
YAML_PLAIN_SCALAR_STYLE);
} else if (strcmp((char *)tag, YAML_STR_TAG) == 0) {
yaml_scalar_event_initialize(event, NULL,
(yaml_char_t *)YAML_STR_TAG,
(yaml_char_t *)val,
strlen((char *)val), 1, 0,
YAML_PLAIN_SCALAR_STYLE);
} else if (strcmp((char *)tag, YAML_BOOL_TAG) == 0) {
yaml_scalar_event_initialize(event, NULL,
(yaml_char_t *)YAML_BOOL_TAG,
(yaml_char_t *)val,
strlen((char *)val), 1, 0,
YAML_PLAIN_SCALAR_STYLE);
} else {
return 0;
}
return yaml_emitter_emit(emitter, event);
}
int
lnet_yaml_int_mapping(yaml_event_t *event, yaml_emitter_t *emitter,
const char *key, const void *val, int size)
{
return lnet_yaml_event_helper(event, emitter, key,
(yaml_char_t *)YAML_INT_TAG, val, size,
false);
}
int
lnet_yaml_uint_mapping(yaml_event_t *event, yaml_emitter_t *emitter,
const char *key, const void *val, int size)
{
return lnet_yaml_event_helper(event, emitter, key,
(yaml_char_t *)YAML_INT_TAG, val, size,
true);
}
int
lnet_yaml_bool_mapping(yaml_event_t *event, yaml_emitter_t *emitter,
const char *key, const char *val)
{
return lnet_yaml_event_helper(event, emitter, key,
(yaml_char_t *)YAML_BOOL_TAG, val, 0,
false);
}
int
lnet_yaml_str_mapping(yaml_event_t *event, yaml_emitter_t *emitter,
const char *key, const char *val)
{
return lnet_yaml_event_helper(event, emitter, key,
(yaml_char_t *)YAML_STR_TAG, val, 0,
false);
}
