sysfs should be avoided for new settings of network interfaces. To still provide a common configuration infrastructure, all the existing settings subcommands also have to be reimplemented via generic netlink while still using sysfs as fallback.
The multicast_mode implementation is using the commands BATADV_CMD_SET_MESH/BATADV_CMD_GET_MESH to set/get the configuration of the u8 (boolean) BATADV_ATTR_MULTICAST_MODE attribute.
Signed-off-by: Sven Eckelmann sven@narfation.org --- Cc: Linus Lüssing linus.luessing@c0d3.blue --- multicast_mode.c | 45 +++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 43 insertions(+), 2 deletions(-)
diff --git a/multicast_mode.c b/multicast_mode.c index 8542928..381b8a6 100644 --- a/multicast_mode.c +++ b/multicast_mode.c @@ -21,13 +21,54 @@ */
#include "main.h" + +#include <errno.h> +#include <linux/genetlink.h> +#include <netlink/genl/genl.h> + +#include "batman_adv.h" +#include "netlink.h" #include "sys.h"
+static struct simple_boolean_data multicast_mode; + +static int print_multicast_mode(struct nl_msg *msg, void *arg) +{ + return sys_simple_print_boolean(msg, arg, BATADV_ATTR_MULTICAST_MODE); +} + +static int get_multicast_mode(struct state *state) +{ + return sys_simple_nlquery(state, BATADV_CMD_GET_MESH, + NULL, print_multicast_mode); +} + +static int set_attrs_multicast_mode(struct nl_msg *msg, void *arg) +{ + struct state *state = arg; + struct settings_data *settings = state->cmd->arg; + struct simple_boolean_data *data = settings->data; + + nla_put_u8(msg, BATADV_ATTR_MULTICAST_MODE, data->val); + + return 0; +} + +static int set_multicast_mode(struct state *state) +{ + return sys_simple_nlquery(state, BATADV_CMD_SET_MESH, + set_attrs_multicast_mode, NULL); +} + static struct settings_data batctl_settings_multicast_mode = { .sysfs_name = SYS_MULTICAST_MODE, - .params = sysfs_param_enable, + .data = &multicast_mode, + .parse = parse_simple_boolean, + .netlink_get = get_multicast_mode, + .netlink_set = set_multicast_mode, };
COMMAND_NAMED(SUBCOMMAND, multicast_mode, "mm", handle_sys_setting, - COMMAND_FLAG_MESH_IFACE, &batctl_settings_multicast_mode, + COMMAND_FLAG_MESH_IFACE | COMMAND_FLAG_NETLINK, + &batctl_settings_multicast_mode, "[0|1] \tdisplay or modify multicast_mode setting");