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tipc: add link monitor summary

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The monitor summary command prints the basic attributes
specific to the local node.
A sample usage is shown below:
$ tipc link monitor summary
bearer eth:data0
    table_generation 15
    cluster_size 8
    algorithm overlapping-ring

bearer eth:data1
    table_generation 15
    cluster_size 8
    algorithm overlapping-ring

$ tipc link monitor summary -h
Usage: tipc monitor summary

Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Tested-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
This commit is contained in:
Parthasarathy Bhuvaragan 2016-09-12 17:17:18 +02:00 committed by Stephen Hemminger
parent 7da7ef9bd8
commit 80e9807dff
1 changed files with 46 additions and 1 deletions
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47
tipc/link.c
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@ -515,6 +515,49 @@ static int cmd_link_mon_set_prop(struct nlmsghdr *nlh, const struct cmd *cmd,
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);
printf("\nbearer %s\n",
mnl_attr_get_str(attrs[TIPC_NLA_MON_BEARER_NAME]));
printf(" table_generation %u\n",
mnl_attr_get_u32(attrs[TIPC_NLA_MON_LISTGEN]));
printf(" cluster_size %u\n",
mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEERCNT]));
printf(" algorithm %s\n",
attrs[TIPC_NLA_MON_ACTIVE] ? "overlapping-ring" : "full-mesh");
return MNL_CB_OK;
}
static int cmd_link_mon_summary(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
char buf[MNL_SOCKET_BUFFER_SIZE];
if (help_flag) {
fprintf(stderr, "Usage: %s monitor summary\n", cmdl->argv[0]);
return -EINVAL;
}
if (!(nlh = msg_init(buf, TIPC_NL_MON_GET))) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
return msg_dumpit(nlh, link_mon_summary_cb, NULL);
}
static void cmd_link_mon_set_help(struct cmdl *cmdl)
{
fprintf(stderr, "Usage: %s monitor set PPROPERTY\n\n"
@ -592,7 +635,8 @@ static void cmd_link_mon_help(struct cmdl *cmdl)
"Usage: %s montior COMMAND [ARGS] ...\n\n"
"COMMANDS\n"
" set - Set monitor properties\n"
" get - Get monitor properties\n",
" get - Get monitor properties\n"
" summary - Show local node monitor summary\n",
cmdl->argv[0]);
}
@ -602,6 +646,7 @@ static int cmd_link_mon(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl
const struct cmd cmds[] = {
{ "set", cmd_link_mon_set, cmd_link_mon_set_help },
{ "get", cmd_link_mon_get, cmd_link_mon_get_help },
{ "summary", cmd_link_mon_summary, NULL },
{ NULL }
};