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iproute2/tipc/link.c
Hoang Le 459f280813 tipc: call a sub-routine in separate socket 
When receiving a result from first query to netlink, we may exec
a another query inside the callback. If calling this sub-routine
in the same socket, it will be discarded the result from previous
exection.
To avoid this we perform a nested query in separate socket.

Fixes: 2021028306 ("tipc: use the libmnl functions in lib/mnl_utils.c")
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-05-09 22:08:47 +00:00

1253 lines
35 KiB
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/*
* link.c TIPC link functionality.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Authors: Richard Alpe <richard.alpe@ericsson.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <linux/tipc_netlink.h>
#include <linux/tipc.h>
#include <linux/genetlink.h>
#include <libmnl/libmnl.h>
#include "mnl_utils.h"
#include "cmdl.h"
#include "msg.h"
#include "link.h"
#include "bearer.h"
#include "utils.h"
#define PRIORITY_STR "priority"
#define TOLERANCE_STR "tolerance"
#define WINDOW_STR "window"
#define BROADCAST_STR "broadcast"
static const char tipc_bclink_name[] = "broadcast-link";
static int link_list_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_LINK])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_LINK], parse_attrs, attrs);
if (!attrs[TIPC_NLA_LINK_NAME])
return MNL_CB_ERROR;
print_string(PRINT_FP, NULL, "%s: ",
mnl_attr_get_str(attrs[TIPC_NLA_LINK_NAME]));
if (attrs[TIPC_NLA_LINK_UP])
print_string(PRINT_ANY,
mnl_attr_get_str(attrs[TIPC_NLA_LINK_NAME]),"%s\n", "up");
else
print_string(PRINT_ANY,
mnl_attr_get_str(attrs[TIPC_NLA_LINK_NAME]), "%s\n", "down");
return MNL_CB_OK;
}
static int cmd_link_list(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
int err = 0;
if (help_flag) {
fprintf(stderr, "Usage: %s link list\n", cmdl->argv[0]);
return -EINVAL;
}
nlh = msg_init(TIPC_NL_LINK_GET);
if (!nlh) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
new_json_obj(json);
open_json_object(NULL);
err = msg_dumpit(nlh, link_list_cb, NULL);
close_json_object();
delete_json_obj();
return err;
}
static int link_get_cb(const struct nlmsghdr *nlh, void *data)
{
int *prop = data;
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1] = {};
struct nlattr *props[TIPC_NLA_PROP_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_LINK])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_LINK], parse_attrs, attrs);
if (!attrs[TIPC_NLA_LINK_PROP])
return MNL_CB_ERROR;
mnl_attr_parse_nested(attrs[TIPC_NLA_LINK_PROP], parse_attrs, props);
if (!props[*prop])
return MNL_CB_ERROR;
new_json_obj(json);
open_json_object(NULL);
switch (*prop) {
case TIPC_NLA_PROP_PRIO:
print_uint(PRINT_ANY, PRIORITY_STR, "%u\n", mnl_attr_get_u32(props[*prop]));
break;
case TIPC_NLA_PROP_TOL:
print_uint(PRINT_ANY, TOLERANCE_STR, "%u\n", mnl_attr_get_u32(props[*prop]));
break;
case TIPC_NLA_PROP_WIN:
print_uint(PRINT_ANY, WINDOW_STR, "%u\n", mnl_attr_get_u32(props[*prop]));
break;
default:
break;
}
close_json_object();
delete_json_obj();
return MNL_CB_OK;
}
static int cmd_link_get_prop(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
int prop;
struct nlattr *attrs;
struct opt *opt;
struct opt opts[] = {
{ "link", OPT_KEYVAL, NULL },
{ NULL }
};
if (strcmp(cmd->cmd, PRIORITY_STR) == 0)
prop = TIPC_NLA_PROP_PRIO;
else if ((strcmp(cmd->cmd, TOLERANCE_STR) == 0))
prop = TIPC_NLA_PROP_TOL;
else if ((strcmp(cmd->cmd, WINDOW_STR) == 0))
prop = TIPC_NLA_PROP_WIN;
else
return -EINVAL;
if (help_flag) {
(cmd->help)(cmdl);
return -EINVAL;
}
if (parse_opts(opts, cmdl) < 0)
return -EINVAL;
nlh = msg_init(TIPC_NL_LINK_GET);
if (!nlh) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
opt = get_opt(opts, "link");
if (!opt) {
fprintf(stderr, "error, missing link\n");
return -EINVAL;
}
attrs = mnl_attr_nest_start(nlh, TIPC_NLA_LINK);
mnl_attr_put_strz(nlh, TIPC_NLA_LINK_NAME, opt->val);
mnl_attr_nest_end(nlh, attrs);
return msg_doit(nlh, link_get_cb, &prop);
}
static void cmd_link_get_help(struct cmdl *cmdl)
{
fprintf(stderr, "Usage: %s link get PPROPERTY link LINK\n\n"
"PROPERTIES\n"
" tolerance - Get link tolerance\n"
" priority - Get link priority\n"
" window - Get link window\n"
" broadcast - Get link broadcast\n",
cmdl->argv[0]);
}
static int cmd_link_get_bcast_cb(const struct nlmsghdr *nlh, void *data)
{
int *prop = data;
int prop_ratio = TIPC_NLA_PROP_BROADCAST_RATIO;
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1] = {};
struct nlattr *props[TIPC_NLA_PROP_MAX + 1] = {};
int bc_mode;
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_LINK])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_LINK], parse_attrs, attrs);
if (!attrs[TIPC_NLA_LINK_PROP])
return MNL_CB_ERROR;
mnl_attr_parse_nested(attrs[TIPC_NLA_LINK_PROP], parse_attrs, props);
if (!props[*prop])
return MNL_CB_ERROR;
bc_mode = mnl_attr_get_u32(props[*prop]);
new_json_obj(json);
open_json_object(NULL);
switch (bc_mode) {
case 0x1:
print_string(PRINT_ANY, "method", "%s\n", "BROADCAST");
break;
case 0x2:
print_string(PRINT_ANY, "method", "%s\n", "REPLICAST");
break;
case 0x4:
print_string(PRINT_ANY, "method", "%s", "AUTOSELECT");
close_json_object();
open_json_object(NULL);
print_uint(PRINT_ANY, "ratio", " ratio:%u\n",
mnl_attr_get_u32(props[prop_ratio]));
break;
default:
print_string(PRINT_ANY, NULL, "UNKNOWN\n", NULL);
break;
}
close_json_object();
delete_json_obj();
return MNL_CB_OK;
}
static void cmd_link_get_bcast_help(struct cmdl *cmdl)
{
fprintf(stderr, "Usage: %s link get PPROPERTY\n\n"
"PROPERTIES\n"
" broadcast - Get link broadcast\n",
cmdl->argv[0]);
}
static int cmd_link_get_bcast(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
int prop = TIPC_NLA_PROP_BROADCAST;
struct nlattr *attrs;
if (help_flag) {
(cmd->help)(cmdl);
return -EINVAL;
}
nlh = msg_init(TIPC_NL_LINK_GET);
if (!nlh) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
attrs = mnl_attr_nest_start(nlh, TIPC_NLA_LINK);
/* Direct to broadcast-link setting */
mnl_attr_put_strz(nlh, TIPC_NLA_LINK_NAME, tipc_bclink_name);
mnl_attr_nest_end(nlh, attrs);
return msg_doit(nlh, cmd_link_get_bcast_cb, &prop);
}
static int cmd_link_get(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
const struct cmd cmds[] = {
{ PRIORITY_STR, cmd_link_get_prop, cmd_link_get_help },
{ TOLERANCE_STR, cmd_link_get_prop, cmd_link_get_help },
{ WINDOW_STR, cmd_link_get_prop, cmd_link_get_help },
{ BROADCAST_STR, cmd_link_get_bcast, cmd_link_get_bcast_help },
{ NULL }
};
return run_cmd(nlh, cmd, cmds, cmdl, NULL);
}
static void cmd_link_stat_reset_help(struct cmdl *cmdl)
{
fprintf(stderr, "Usage: %s link stat reset link LINK\n\n", cmdl->argv[0]);
}
static int cmd_link_stat_reset(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
char *link;
struct opt *opt;
struct nlattr *nest;
struct opt opts[] = {
{ "link", OPT_KEYVAL, NULL },
{ NULL }
};
if (help_flag) {
(cmd->help)(cmdl);
return -EINVAL;
}
if (parse_opts(opts, cmdl) != 1) {
(cmd->help)(cmdl);
return -EINVAL;
}
nlh = msg_init(TIPC_NL_LINK_RESET_STATS);
if (!nlh) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
opt = get_opt(opts, "link");
if (!opt) {
fprintf(stderr, "error, missing link\n");
return -EINVAL;
}
link = opt->val;
nest = mnl_attr_nest_start(nlh, TIPC_NLA_LINK);
mnl_attr_put_strz(nlh, TIPC_NLA_LINK_NAME, link);
mnl_attr_nest_end(nlh, nest);
return msg_doit(nlh, NULL, NULL);
}
static uint32_t perc(uint32_t count, uint32_t total)
{
return (count * 100 + (total / 2)) / total;
}
static int _show_link_stat(const char *name, struct nlattr *attrs[],
struct nlattr *prop[], struct nlattr *stats[])
{
uint32_t proft;
open_json_object(NULL);
print_string(PRINT_ANY, "link", "Link <%s>\n", name);
print_string(PRINT_JSON, "state", "", NULL);
open_json_array(PRINT_JSON, NULL);
if (attrs[TIPC_NLA_LINK_ACTIVE])
print_string(PRINT_ANY, NULL, " %s", "ACTIVE");
else if (attrs[TIPC_NLA_LINK_UP])
print_string(PRINT_ANY, NULL, " %s", "STANDBY");
else
print_string(PRINT_ANY, NULL, " %s", "DEFUNCT");
close_json_array(PRINT_JSON, NULL);
print_uint(PRINT_ANY, "mtu", " MTU:%u",
mnl_attr_get_u32(attrs[TIPC_NLA_LINK_MTU]));
print_uint(PRINT_ANY, PRIORITY_STR, " Priority:%u",
mnl_attr_get_u32(prop[TIPC_NLA_PROP_PRIO]));
print_uint(PRINT_ANY, TOLERANCE_STR, " Tolerance:%u ms",
mnl_attr_get_u32(prop[TIPC_NLA_PROP_TOL]));
print_uint(PRINT_ANY, WINDOW_STR, " Window:%u packets\n",
mnl_attr_get_u32(prop[TIPC_NLA_PROP_WIN]));
open_json_object("rx packets");
print_uint(PRINT_ANY, "rx packets", " RX packets:%u",
mnl_attr_get_u32(attrs[TIPC_NLA_LINK_RX]) -
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_INFO]));
print_uint(PRINT_ANY, "fragments", " fragments:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]));
print_uint(PRINT_ANY, "fragmented", "/%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]));
print_uint(PRINT_ANY, "bundles", " bundles:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]));
print_uint(PRINT_ANY, "bundled", "/%u\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED]));
close_json_object();
open_json_object("tx packets");
print_uint(PRINT_ANY, "tx packets", " TX packets:%u",
mnl_attr_get_u32(attrs[TIPC_NLA_LINK_TX]) -
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_INFO]));
print_uint(PRINT_ANY, "fragments", " fragments:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]));
print_uint(PRINT_ANY, "fragmented", "/%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]));
print_uint(PRINT_ANY, "bundles", " bundles:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]));
print_uint(PRINT_ANY, "bundled", "/%u\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED]));
close_json_object();
proft = mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]);
print_uint(PRINT_ANY, "tx profile sample", " TX profile sample:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_CNT]));
print_uint(PRINT_ANY, "packets average", " packets average:%u octets\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_TOT]) / proft);
print_uint(PRINT_ANY, "0-64", " 0-64:%u%%",
perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P0]), proft));
print_uint(PRINT_ANY, "-256", " -256:%u%%",
perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P1]), proft));
print_uint(PRINT_ANY, "-1024", " -1024:%u%%",
perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P2]), proft));
print_uint(PRINT_ANY, "-4096", " -4096:%u%%",
perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P3]), proft));
print_uint(PRINT_ANY, "-16384", " -16384:%u%%",
perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P4]), proft));
print_uint(PRINT_ANY, "-32768", " -32768:%u%%",
perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P5]), proft));
print_uint(PRINT_ANY, "-66000", " -66000:%u%%\n",
perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P6]), proft));
open_json_object("rx states");
print_uint(PRINT_ANY, "rx states", " RX states:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_STATES]));
print_uint(PRINT_ANY, "probes", " probes:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_PROBES]));
print_uint(PRINT_ANY, "naks", " naks:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]));
print_uint(PRINT_ANY, "defs", " defs:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]));
print_uint(PRINT_ANY, "dups", " dups:%u\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_DUPLICATES]));
close_json_object();
open_json_object("tx states");
print_uint(PRINT_ANY, "tx states", " TX states:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_STATES]));
print_uint(PRINT_ANY, "probes", " probes:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_PROBES]));
print_uint(PRINT_ANY, "naks", " naks:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]));
print_uint(PRINT_ANY, "acks", " acks:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]));
print_uint(PRINT_ANY, "retrans", " retrans:%u\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED]));
close_json_object();
print_uint(PRINT_ANY, "congestion link", " Congestion link:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]));
print_uint(PRINT_ANY, "send queue max", " Send queue max:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]));
print_uint(PRINT_ANY, "avg", " avg:%u\n\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE]));
close_json_object();
return MNL_CB_OK;
}
static int _show_bc_link_stat(const char *name, struct nlattr *prop[],
struct nlattr *stats[])
{
open_json_object(NULL);
print_string(PRINT_ANY, "link", "Link <%s>\n", name);
print_uint(PRINT_ANY, WINDOW_STR, " Window:%u packets\n",
mnl_attr_get_u32(prop[TIPC_NLA_PROP_WIN]));
open_json_object("rx packets");
print_uint(PRINT_ANY, "rx packets", " RX packets:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_INFO]));
print_uint(PRINT_ANY, "fragments", " fragments:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]));
print_uint(PRINT_ANY, "fragmented", "/%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]));
print_uint(PRINT_ANY, "bundles", " bundles:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]));
print_uint(PRINT_ANY, "bundled", "/%u\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED]));
close_json_object();
open_json_object("tx packets");
print_uint(PRINT_ANY, "tx packets", " TX packets:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_INFO]));
print_uint(PRINT_ANY, "fragments", " fragments:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]));
print_uint(PRINT_ANY, "fragmented", "/%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]));
print_uint(PRINT_ANY, "bundles", " bundles:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]));
print_uint(PRINT_ANY, "bundled", "/%u\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED]));
close_json_object();
open_json_object("rx naks");
print_uint(PRINT_ANY, "rx naks", " RX naks:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]));
print_uint(PRINT_ANY, "defs", " defs:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]));
print_uint(PRINT_ANY, "dups", " dups:%u\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_DUPLICATES]));
close_json_object();
open_json_object("tx naks");
print_uint(PRINT_ANY, "tx naks", " TX naks:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]));
print_uint(PRINT_ANY, "acks", " acks:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]));
print_uint(PRINT_ANY, "retrans", " retrans:%u\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED]));
close_json_object();
print_uint(PRINT_ANY, "congestion link", " Congestion link:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]));
print_uint(PRINT_ANY, "send queue max", " Send queue max:%u",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]));
print_uint(PRINT_ANY, "avg", " avg:%u\n\n",
mnl_attr_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE]));
close_json_object();
return MNL_CB_OK;
}
static int link_stat_show_cb(const struct nlmsghdr *nlh, void *data)
{
const char *name;
const char *link = data;
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1] = {};
struct nlattr *prop[TIPC_NLA_PROP_MAX + 1] = {};
struct nlattr *stats[TIPC_NLA_STATS_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_LINK])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_LINK], parse_attrs, attrs);
if (!attrs[TIPC_NLA_LINK_NAME] || !attrs[TIPC_NLA_LINK_PROP] ||
!attrs[TIPC_NLA_LINK_STATS])
return MNL_CB_ERROR;
mnl_attr_parse_nested(attrs[TIPC_NLA_LINK_PROP], parse_attrs, prop);
mnl_attr_parse_nested(attrs[TIPC_NLA_LINK_STATS], parse_attrs, stats);
name = mnl_attr_get_str(attrs[TIPC_NLA_LINK_NAME]);
/* If a link is passed, skip all but that link.
* Support a substring matching as well.
*/
if (link && !strstr(name, link))
return MNL_CB_OK;
if (attrs[TIPC_NLA_LINK_BROADCAST]) {
return _show_bc_link_stat(name, prop, stats);
}
return _show_link_stat(name, attrs, prop, stats);
}
static void cmd_link_stat_show_help(struct cmdl *cmdl)
{
fprintf(stderr, "Usage: %s link stat show [ link { LINK | SUBSTRING | all } ]\n",
cmdl->argv[0]);
}
static int cmd_link_stat_show(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
char *link = NULL;
struct opt *opt;
struct opt opts[] = {
{ "link", OPT_KEYVAL, NULL },
{ NULL }
};
struct nlattr *attrs;
int err = 0;
if (help_flag) {
(cmd->help)(cmdl);
return -EINVAL;
}
nlh = msg_init(TIPC_NL_LINK_GET);
if (!nlh) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
if (parse_opts(opts, cmdl) < 0)
return -EINVAL;
opt = get_opt(opts, "link");
if (opt) {
if (strcmp(opt->val, "all"))
link = opt->val;
/* Set the flag to dump all bc links */
attrs = mnl_attr_nest_start(nlh, TIPC_NLA_LINK);
mnl_attr_put(nlh, TIPC_NLA_LINK_BROADCAST, 0, NULL);
mnl_attr_nest_end(nlh, attrs);
}
new_json_obj(json);
err = msg_dumpit(nlh, link_stat_show_cb, link);
delete_json_obj();
return err;
}
static void cmd_link_stat_help(struct cmdl *cmdl)
{
fprintf(stderr, "Usage: %s link stat COMMAND [ARGS]\n\n"
"COMMANDS:\n"
" reset - Reset link statistics for link\n"
" show - Get link priority\n",
cmdl->argv[0]);
}
static int cmd_link_stat(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
const struct cmd cmds[] = {
{ "reset", cmd_link_stat_reset, cmd_link_stat_reset_help },
{ "show", cmd_link_stat_show, cmd_link_stat_show_help },
{ NULL }
};
return run_cmd(nlh, cmd, cmds, cmdl, NULL);
}
static void cmd_link_set_help(struct cmdl *cmdl)
{
fprintf(stderr, "Usage: %s link set PPROPERTY link LINK\n\n"
"PROPERTIES\n"
" tolerance TOLERANCE - Set link tolerance\n"
" priority PRIORITY - Set link priority\n"
" window WINDOW - Set link window\n"
" broadcast BROADCAST - Set link broadcast\n",
cmdl->argv[0]);
}
static int cmd_link_set_prop(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
int val;
int prop;
struct nlattr *props;
struct nlattr *attrs;
struct opt *opt;
struct opt opts[] = {
{ "link", OPT_KEYVAL, NULL },
{ NULL }
};
if (strcmp(cmd->cmd, PRIORITY_STR) == 0)
prop = TIPC_NLA_PROP_PRIO;
else if ((strcmp(cmd->cmd, TOLERANCE_STR) == 0))
prop = TIPC_NLA_PROP_TOL;
else if ((strcmp(cmd->cmd, WINDOW_STR) == 0))
prop = TIPC_NLA_PROP_WIN;
else
return -EINVAL;
if (help_flag) {
(cmd->help)(cmdl);
return -EINVAL;
}
if (cmdl->optind >= cmdl->argc) {
fprintf(stderr, "error, missing value\n");
return -EINVAL;
}
val = atoi(shift_cmdl(cmdl));
if (parse_opts(opts, cmdl) < 0)
return -EINVAL;
nlh = msg_init(TIPC_NL_LINK_SET);
if (!nlh) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
attrs = mnl_attr_nest_start(nlh, TIPC_NLA_LINK);
opt = get_opt(opts, "link");
if (!opt) {
fprintf(stderr, "error, missing link\n");
return -EINVAL;
}
mnl_attr_put_strz(nlh, TIPC_NLA_LINK_NAME, opt->val);
props = mnl_attr_nest_start(nlh, TIPC_NLA_LINK_PROP);
mnl_attr_put_u32(nlh, prop, val);
mnl_attr_nest_end(nlh, props);
mnl_attr_nest_end(nlh, attrs);
return msg_doit(nlh, link_get_cb, &prop);
}
static void cmd_link_set_bcast_help(struct cmdl *cmdl)
{
fprintf(stderr, "Usage: %s link set broadcast PROPERTY\n\n"
"PROPERTIES\n"
" BROADCAST - Forces all multicast traffic to be\n"
" transmitted via broadcast only,\n"
" irrespective of cluster size and number\n"
" of destinations\n\n"
" REPLICAST - Forces all multicast traffic to be\n"
" transmitted via replicast only,\n"
" irrespective of cluster size and number\n"
" of destinations\n\n"
" AUTOSELECT - Auto switching to broadcast or replicast\n"
" depending on cluster size and destination\n"
" node number\n\n"
" ratio SIZE - Set the AUTOSELECT criteria, percentage of\n"
" destination nodes vs cluster size\n\n",
cmdl->argv[0]);
}
static int cmd_link_set_bcast(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
struct nlattr *props;
struct nlattr *attrs;
struct opt *opt;
struct opt opts[] = {
{ "BROADCAST", OPT_KEY, NULL },
{ "REPLICAST", OPT_KEY, NULL },
{ "AUTOSELECT", OPT_KEY, NULL },
{ "ratio", OPT_KEYVAL, NULL },
{ NULL }
};
int method = 0;
if (help_flag) {
(cmd->help)(cmdl);
return -EINVAL;
}
if (parse_opts(opts, cmdl) < 0)
return -EINVAL;
for (opt = opts; opt->key; opt++)
if (opt->val)
break;
if (!opt || !opt->key) {
(cmd->help)(cmdl);
return -EINVAL;
}
nlh = msg_init(TIPC_NL_LINK_SET);
if (!nlh) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
attrs = mnl_attr_nest_start(nlh, TIPC_NLA_LINK);
/* Direct to broadcast-link setting */
mnl_attr_put_strz(nlh, TIPC_NLA_LINK_NAME, tipc_bclink_name);
props = mnl_attr_nest_start(nlh, TIPC_NLA_LINK_PROP);
if (get_opt(opts, "BROADCAST"))
method = 0x1;
else if (get_opt(opts, "REPLICAST"))
method = 0x2;
else if (get_opt(opts, "AUTOSELECT"))
method = 0x4;
opt = get_opt(opts, "ratio");
if (!method && !opt) {
(cmd->help)(cmdl);
return -EINVAL;
}
if (method)
mnl_attr_put_u32(nlh, TIPC_NLA_PROP_BROADCAST, method);
if (opt)
mnl_attr_put_u32(nlh, TIPC_NLA_PROP_BROADCAST_RATIO,
atoi(opt->val));
mnl_attr_nest_end(nlh, props);
mnl_attr_nest_end(nlh, attrs);
return msg_doit(nlh, NULL, NULL);
}
static int cmd_link_set(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
const struct cmd cmds[] = {
{ PRIORITY_STR, cmd_link_set_prop, cmd_link_set_help },
{ TOLERANCE_STR, cmd_link_set_prop, cmd_link_set_help },
{ WINDOW_STR, cmd_link_set_prop, cmd_link_set_help },
{ BROADCAST_STR, cmd_link_set_bcast, cmd_link_set_bcast_help },
{ NULL }
};
return run_cmd(nlh, cmd, cmds, cmdl, NULL);
}
static int cmd_link_mon_set_prop(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
int size;
struct nlattr *attrs;
if (cmdl->argc != cmdl->optind + 1) {
fprintf(stderr, "error, missing value\n");
return -EINVAL;
}
size = atoi(shift_cmdl(cmdl));
nlh = msg_init(TIPC_NL_MON_SET);
if (!nlh) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
attrs = mnl_attr_nest_start(nlh, TIPC_NLA_MON);
mnl_attr_put_u32(nlh, TIPC_NLA_MON_ACTIVATION_THRESHOLD, size);
mnl_attr_nest_end(nlh, attrs);
return msg_doit(nlh, NULL, NULL);
}
static int link_mon_summary_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_MON_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_MON])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_MON], parse_attrs, attrs);
open_json_object(NULL);
print_string(PRINT_ANY, "bearer", "\nbearer %s\n",
mnl_attr_get_str(attrs[TIPC_NLA_MON_BEARER_NAME]));
print_uint(PRINT_ANY, "table_generation", " table_generation %u\n",
mnl_attr_get_u32(attrs[TIPC_NLA_MON_LISTGEN]));
print_uint(PRINT_ANY, "cluster_size", " cluster_size %u\n",
mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEERCNT]));
print_string(PRINT_ANY, "algorithm", " algorithm %s\n",
attrs[TIPC_NLA_MON_ACTIVE] ? "overlapping-ring" : "full-mesh");
close_json_object();
return MNL_CB_OK;
}
static int cmd_link_mon_summary(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
int err = 0;
if (help_flag) {
fprintf(stderr, "Usage: %s monitor summary\n", cmdl->argv[0]);
return -EINVAL;
}
nlh = msg_init(TIPC_NL_MON_GET);
if (!nlh) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
new_json_obj(json);
err = msg_dumpit(nlh, link_mon_summary_cb, NULL);
delete_json_obj();
return err;
}
#define STATUS_WIDTH 7
#define MAX_NODE_WIDTH 14 /* 255.4095.4095 */
#define MAX_DOM_GEN_WIDTH 11 /* 65535 */
#define DIRECTLY_MON_WIDTH 10
#define APPL_NODE_STATUS_WIDTH 5
static int map_get(uint64_t up_map, int i)
{
return (up_map & (1 << i)) >> i;
}
/* print the applied members, since we know the the members
* are listed in ascending order, we print only the state
*/
static void link_mon_print_applied(uint16_t applied, uint64_t up_map)
{
int i;
open_json_array(PRINT_JSON, "applied_node_status");
for (i = 0; i < applied; i++) {
char state_str[2] = {0};
/* print the delimiter for every -n- entry */
if (i && !(i % APPL_NODE_STATUS_WIDTH))
print_string(PRINT_FP, NULL, "%s", ",");
sprintf(state_str, "%c", map_get(up_map, i) ? 'U' : 'D');
print_string(PRINT_ANY, NULL, "%s", state_str);
}
close_json_array(PRINT_JSON, "applied_node_status");
}
/* print the non applied members, since we don't know
* the members, we print them along with the state
*/
static void link_mon_print_non_applied(uint16_t applied, uint16_t member_cnt,
uint64_t up_map, uint32_t *members)
{
int i;
char state;
open_json_array(PRINT_JSON, "[non_applied_node:status]");
print_string(PRINT_FP, NULL, " %s", "[");
for (i = applied; i < member_cnt; i++) {
char addr_str[16];
char full_state[17] = {0};
/* print the delimiter for every entry */
if (i != applied)
print_string(PRINT_FP, NULL, "%s", ",");
sprintf(addr_str, "%x:", members[i]);
state = map_get(up_map, i) ? 'U' : 'D';
sprintf(full_state, "%s%c", addr_str, state);
print_string(PRINT_ANY, NULL, "%s", full_state);
}
print_string(PRINT_FP, NULL, "%s", "]");
close_json_array(PRINT_JSON, "[non_applied_node:status]");
}
static void link_mon_print_peer_state(const uint32_t addr, const char *status,
const char *monitored,
const uint32_t dom_gen)
{
char addr_str[16];
sprintf(addr_str, "%u.%u.%u", tipc_zone(addr), tipc_cluster(addr),
tipc_node(addr));
if (is_json_context()) {
print_string(PRINT_JSON, "node", NULL, addr_str);
print_string(PRINT_JSON, "status", NULL, status);
print_string(PRINT_JSON, "monitored", NULL, monitored);
print_uint(PRINT_JSON, "generation", NULL, dom_gen);
} else {
printf("%-*s", MAX_NODE_WIDTH, addr_str);
printf("%-*s", STATUS_WIDTH, status);
printf("%-*s", DIRECTLY_MON_WIDTH, monitored);
printf("%-*u", MAX_DOM_GEN_WIDTH, dom_gen);
}
}
static int link_mon_peer_list_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *attrs[TIPC_NLA_MON_PEER_MAX + 1] = {};
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
uint16_t member_cnt;
uint32_t applied;
uint32_t dom_gen;
uint64_t up_map;
char status[16];
char monitored[16];
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_MON_PEER])
return MNL_CB_ERROR;
open_json_object(NULL);
mnl_attr_parse_nested(info[TIPC_NLA_MON_PEER], parse_attrs, attrs);
(attrs[TIPC_NLA_MON_PEER_LOCAL] || attrs[TIPC_NLA_MON_PEER_HEAD]) ?
strcpy(monitored, "direct") :
strcpy(monitored, "indirect");
attrs[TIPC_NLA_MON_PEER_UP] ?
strcpy(status, "up") :
strcpy(status, "down");
dom_gen = attrs[TIPC_NLA_MON_PEER_DOMGEN] ?
mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEER_DOMGEN]) : 0;
link_mon_print_peer_state(mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEER_ADDR]),
status, monitored, dom_gen);
applied = mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEER_APPLIED]);
if (!applied)
goto exit;
up_map = mnl_attr_get_u64(attrs[TIPC_NLA_MON_PEER_UPMAP]);
member_cnt = mnl_attr_get_payload_len(attrs[TIPC_NLA_MON_PEER_MEMBERS]);
/* each tipc address occupies 4 bytes of payload, hence compensate it */
member_cnt /= sizeof(uint32_t);
link_mon_print_applied(applied, up_map);
link_mon_print_non_applied(applied, member_cnt, up_map,
mnl_attr_get_payload(attrs[TIPC_NLA_MON_PEER_MEMBERS]));
exit:
print_string(PRINT_FP, NULL, "\n", "");
close_json_object();
return MNL_CB_OK;
}
static int link_mon_peer_list(uint32_t mon_ref)
{
struct mnlu_gen_socket link_nlg;
struct nlmsghdr *nlh;
struct nlattr *nest;
int err = 0;
err = mnlu_gen_socket_open(&link_nlg, TIPC_GENL_V2_NAME,
TIPC_GENL_V2_VERSION);
if (err)
return -1;
nlh = mnlu_gen_socket_cmd_prepare(&link_nlg, TIPC_NL_MON_PEER_GET,
NLM_F_REQUEST | NLM_F_DUMP);
if (!nlh) {
fprintf(stderr, "error, message initialisation failed\n");
mnlu_gen_socket_close(&link_nlg);
return -1;
}
nest = mnl_attr_nest_start(nlh, TIPC_NLA_MON);
mnl_attr_put_u32(nlh, TIPC_NLA_MON_REF, mon_ref);
mnl_attr_nest_end(nlh, nest);
err = mnlu_gen_socket_sndrcv(&link_nlg, nlh, link_mon_peer_list_cb,
NULL);
mnlu_gen_socket_close(&link_nlg);
return err;
}
static int link_mon_list_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_MON_MAX + 1] = {};
char *req_bearer = data;
const char *bname;
const char title[] =
"node status monitored generation applied_node_status [non_applied_node:status]";
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_MON])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_MON], parse_attrs, attrs);
bname = mnl_attr_get_str(attrs[TIPC_NLA_MON_BEARER_NAME]);
if (*req_bearer && (strcmp(req_bearer, bname) != 0))
return MNL_CB_OK;
open_json_object(NULL);
print_string(PRINT_ANY, "bearer", "\nbearer %s\n", bname);
print_string(PRINT_FP, NULL, "%s\n", title);
open_json_array(PRINT_JSON, bname);
if (mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEERCNT]))
link_mon_peer_list(mnl_attr_get_u32(attrs[TIPC_NLA_MON_REF]));
close_json_array(PRINT_JSON, bname);
close_json_object();
return MNL_CB_OK;
}
static void cmd_link_mon_list_help(struct cmdl *cmdl)
{
fprintf(stderr, "Usage: %s monitor list [ media MEDIA ARGS...]\n\n",
cmdl->argv[0]);
print_bearer_media();
}
static void cmd_link_mon_list_l2_help(struct cmdl *cmdl, char *media)
{
fprintf(stderr,
"Usage: %s monitor list media %s device DEVICE [OPTIONS]\n",
cmdl->argv[0], media);
}
static void cmd_link_mon_list_udp_help(struct cmdl *cmdl, char *media)
{
fprintf(stderr,
"Usage: %s monitor list media udp name NAME\n\n",
cmdl->argv[0]);
}
static int cmd_link_mon_list(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
char bname[TIPC_MAX_BEARER_NAME] = {0};
struct opt opts[] = {
{ "media", OPT_KEYVAL, NULL },
{ "device", OPT_KEYVAL, NULL },
{ "name", OPT_KEYVAL, NULL },
{ NULL }
};
struct tipc_sup_media sup_media[] = {
{ "udp", "name", cmd_link_mon_list_udp_help},
{ "eth", "device", cmd_link_mon_list_l2_help },
{ "ib", "device", cmd_link_mon_list_l2_help },
{ NULL, },
};
int err;
if (parse_opts(opts, cmdl) < 0)
return -EINVAL;
if (get_opt(opts, "media")) {
err = cmd_get_unique_bearer_name(cmd, cmdl, opts, bname,
sup_media);
if (err)
return err;
}
if (help_flag) {
cmd->help(cmdl);
return -EINVAL;
}
nlh = msg_init(TIPC_NL_MON_GET);
if (!nlh) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
new_json_obj(json);
err = msg_dumpit(nlh, link_mon_list_cb, bname);
delete_json_obj();
return err;
}
static void cmd_link_mon_set_help(struct cmdl *cmdl)
{
fprintf(stderr, "Usage: %s monitor set PPROPERTY\n\n"
"PROPERTIES\n"
" threshold SIZE - Set monitor activation threshold\n",
cmdl->argv[0]);
}
static int cmd_link_mon_set(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
const struct cmd cmds[] = {
{ "threshold", cmd_link_mon_set_prop, NULL },
{ NULL }
};
return run_cmd(nlh, cmd, cmds, cmdl, NULL);
}
static void cmd_link_mon_get_help(struct cmdl *cmdl)
{
fprintf(stderr, "Usage: %s monitor get PPROPERTY\n\n"
"PROPERTIES\n"
" threshold - Get monitor activation threshold\n",
cmdl->argv[0]);
}
static int link_mon_get_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_MON_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_MON])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_MON], parse_attrs, attrs);
if (!attrs[TIPC_NLA_MON_ACTIVATION_THRESHOLD])
return MNL_CB_ERROR;
new_json_obj(json);
print_uint(PRINT_ANY, "threshold", "%u\n",
mnl_attr_get_u32(attrs[TIPC_NLA_MON_ACTIVATION_THRESHOLD]));
delete_json_obj();
return MNL_CB_OK;
}
static int cmd_link_mon_get_prop(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
nlh = msg_init(TIPC_NL_MON_GET);
if (!nlh) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
return msg_doit(nlh, link_mon_get_cb, NULL);
}
static int cmd_link_mon_get(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
const struct cmd cmds[] = {
{ "threshold", cmd_link_mon_get_prop, NULL},
{ NULL }
};
return run_cmd(nlh, cmd, cmds, cmdl, NULL);
}
static void cmd_link_mon_help(struct cmdl *cmdl)
{
fprintf(stderr,
"Usage: %s montior COMMAND [ARGS] ...\n\n"
"COMMANDS\n"
" set - Set monitor properties\n"
" get - Get monitor properties\n"
" list - List all cluster members\n"
" summary - Show local node monitor summary\n",
cmdl->argv[0]);
}
static int cmd_link_mon(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl,
void *data)
{
const struct cmd cmds[] = {
{ "set", cmd_link_mon_set, cmd_link_mon_set_help },
{ "get", cmd_link_mon_get, cmd_link_mon_get_help },
{ "list", cmd_link_mon_list, cmd_link_mon_list_help },
{ "summary", cmd_link_mon_summary, NULL },
{ NULL }
};
return run_cmd(nlh, cmd, cmds, cmdl, NULL);
}
void cmd_link_help(struct cmdl *cmdl)
{
fprintf(stderr,
"Usage: %s link COMMAND [ARGS] ...\n"
"\n"
"COMMANDS\n"
" list - List links\n"
" get - Get various link properties\n"
" set - Set various link properties\n"
" statistics - Show or reset statistics\n"
" monitor - Show or set link supervision\n",
cmdl->argv[0]);
}
int cmd_link(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl,
void *data)
{
const struct cmd cmds[] = {
{ "get", cmd_link_get, cmd_link_get_help },
{ "list", cmd_link_list, NULL },
{ "set", cmd_link_set, cmd_link_set_help },
{ "statistics", cmd_link_stat, cmd_link_stat_help },
{ "monitor", cmd_link_mon, cmd_link_mon_help },
{ NULL }
};
return run_cmd(nlh, cmd, cmds, cmdl, NULL);
}
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