tipc: add link monitor set threshold

The command sets the activation threshold for the new
cluster ring supervision.
A sample usage is shown below:
$ tipc link monitor set threshold 4

$ tipc link monitor set -h
Usage: tipc monitor set PPROPERTY

PROPERTIES
 threshold SIZE - Set activation threshold for monitor

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>

diff --git a/tipc/link.c b/tipc/link.c
index 8bdc98224d392c74d5c139dd82b4072c27ccb97a..3469cd302469caf281f1c0f93436be0c4fa5b2ed 100644 (file)
--- a/tipc/link.c
+++ b/tipc/link.c
@@ -489,6 +489,71 @@ static int cmd_link_set(struct nlmsghdr *nlh, const struct cmd *cmd,
        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;
+       char buf[MNL_SOCKET_BUFFER_SIZE];
+       struct nlattr *attrs;
+
+       if (cmdl->argc != cmdl->optind + 1) {
+               fprintf(stderr, "error, missing value\n");
+               return -EINVAL;
+       }
+       size = atoi(shift_cmdl(cmdl));
+
+       if (!(nlh = msg_init(buf, TIPC_NL_MON_SET))) {
+               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 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_help(struct cmdl *cmdl)
+{
+       fprintf(stderr,
+               "Usage: %s montior COMMAND [ARGS] ...\n\n"
+               "COMMANDS\n"
+               " set                  - Set monitor properties\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 },
+               { NULL }
+       };
+
+       return run_cmd(nlh, cmd, cmds, cmdl, NULL);
+}
+
 void cmd_link_help(struct cmdl *cmdl)
 {
        fprintf(stderr,
@@ -498,7 +563,8 @@ void cmd_link_help(struct cmdl *cmdl)
                " list                  - List links\n"
                " get                   - Get various link properties\n"
                " set                   - Set various link properties\n"
-               " statistics            - Show or reset statistics\n",
+               " statistics            - Show or reset statistics\n"
+               " monitor               - Show or set link supervision\n",
                cmdl->argv[0]);
 }
 
@@ -510,6 +576,7 @@ int cmd_link(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl,
                { "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 }
        };