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authorHoang Le <hoang.h.le@dektech.com.au>2019-03-22 15:47:33 +0700
committerDavid Ahern <dsahern@gmail.com>2019-03-26 16:08:49 -0700
commit0ea46945bc930ad59533b3e0def08dc71e820cc3 (patch)
tree32ae5489ed8ca3303f63850a2fb600bf3ec50d87 /tipc
parentcdeb2674aabb2ace05d59516938933b36329ec86 (diff)
downloadiproute2-0ea46945bc930ad59533b3e0def08dc71e820cc3.tar.gz
tipc: add link broadcast set method and ratio
The command added here makes it possible to forcibly configure the broadcast link to use either broadcast or replicast, in addition to the already existing auto selection algorithm. A sample usage is shown below: $tipc link set broadcast BROADCAST $tipc link set broadcast AUTOSELECT ratio 25 $tipc link set broadcast -h Usage: tipc link set broadcast PROPERTY PROPERTIES BROADCAST - Forces all multicast traffic to be transmitted via broadcast only, irrespective of cluster size and number of destinations REPLICAST - Forces all multicast traffic to be transmitted via replicast only, irrespective of cluster size and number of destinations AUTOSELECT - Auto switching to broadcast or replicast depending on cluster size and destination node number ratio SIZE - Set the AUTOSELECT criteria, percentage of destination nodes vs cluster size Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au> Signed-off-by: David Ahern <dsahern@gmail.com>
Diffstat (limited to 'tipc')
-rw-r--r--tipc/link.c96
1 files changed, 95 insertions, 1 deletions
diff --git a/tipc/link.c b/tipc/link.c
index 43e26da3..e3b10bb7 100644
--- a/tipc/link.c
+++ b/tipc/link.c
@@ -28,6 +28,9 @@
#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)
{
@@ -521,7 +524,8 @@ static void cmd_link_set_help(struct cmdl *cmdl)
"PROPERTIES\n"
" tolerance TOLERANCE - Set link tolerance\n"
" priority PRIORITY - Set link priority\n"
- " window WINDOW - Set link window\n",
+ " window WINDOW - Set link window\n"
+ " broadcast BROADCAST - Set link broadcast\n",
cmdl->argv[0]);
}
@@ -585,6 +589,95 @@ static int cmd_link_set_prop(struct nlmsghdr *nlh, const struct cmd *cmd,
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)
+{
+ char buf[MNL_SOCKET_BUFFER_SIZE];
+ 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(buf, 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)
{
@@ -592,6 +685,7 @@ static int cmd_link_set(struct nlmsghdr *nlh, const struct cmd *cmd,
{ 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 }
};