net/batman-adv/mesh-interface.c

Source file repositories/reference/linux-study-clean/net/batman-adv/mesh-interface.c

File Facts

System
Linux kernel
Corpus path
net/batman-adv/mesh-interface.c
Extension
.c
Size
32103 bytes
Lines
1137
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: operation-table or driver-model contract
Status
pattern implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

static const struct net_device_ops batadv_netdev_ops = {
	.ndo_init = batadv_meshif_init_late,
	.ndo_get_stats = batadv_interface_stats,
	.ndo_vlan_rx_add_vid = batadv_interface_add_vid,
	.ndo_vlan_rx_kill_vid = batadv_interface_kill_vid,
	.ndo_set_mac_address = batadv_interface_set_mac_addr,
	.ndo_change_mtu = batadv_interface_change_mtu,
	.ndo_set_rx_mode = batadv_interface_set_rx_mode,
	.ndo_start_xmit = batadv_interface_tx,
	.ndo_validate_addr = eth_validate_addr,
	.ndo_add_slave = batadv_meshif_slave_add,
	.ndo_del_slave = batadv_meshif_slave_del,
};

static void batadv_get_drvinfo(struct net_device *dev,
			       struct ethtool_drvinfo *info)
{
	strscpy(info->driver, "B.A.T.M.A.N. advanced", sizeof(info->driver));
	strscpy(info->version, init_utsname()->release, sizeof(info->version));
	strscpy(info->fw_version, "N/A", sizeof(info->fw_version));
	strscpy(info->bus_info, "batman", sizeof(info->bus_info));
}

/* Inspired by drivers/net/ethernet/dlink/sundance.c:1702
 * Declare each description string in struct.name[] to get fixed sized buffer
 * and compile time checking for strings longer than ETH_GSTRING_LEN.
 */
static const struct {
	const char name[ETH_GSTRING_LEN];
} batadv_counters_strings[] = {
	{ "tx" },
	{ "tx_bytes" },
	{ "tx_dropped" },
	{ "rx" },
	{ "rx_bytes" },
	{ "forward" },
	{ "forward_bytes" },
	{ "mgmt_tx" },
	{ "mgmt_tx_bytes" },
	{ "mgmt_rx" },
	{ "mgmt_rx_bytes" },
	{ "frag_tx" },
	{ "frag_tx_bytes" },
	{ "frag_rx" },
	{ "frag_rx_bytes" },
	{ "frag_fwd" },
	{ "frag_fwd_bytes" },
	{ "tt_request_tx" },
	{ "tt_request_rx" },
	{ "tt_response_tx" },
	{ "tt_response_rx" },
	{ "tt_roam_adv_tx" },
	{ "tt_roam_adv_rx" },
#ifdef CONFIG_BATMAN_ADV_MCAST
	{ "mcast_tx" },
	{ "mcast_tx_bytes" },
	{ "mcast_tx_local" },
	{ "mcast_tx_local_bytes" },
	{ "mcast_rx" },
	{ "mcast_rx_bytes" },
	{ "mcast_rx_local" },
	{ "mcast_rx_local_bytes" },
	{ "mcast_fwd" },
	{ "mcast_fwd_bytes" },
#endif
#ifdef CONFIG_BATMAN_ADV_DAT
	{ "dat_get_tx" },
	{ "dat_get_rx" },
	{ "dat_put_tx" },
	{ "dat_put_rx" },
	{ "dat_cached_reply_tx" },
#endif
};

static void batadv_get_strings(struct net_device *dev, u32 stringset, u8 *data)
{
	if (stringset == ETH_SS_STATS)
		memcpy(data, batadv_counters_strings,
		       sizeof(batadv_counters_strings));
}

static void batadv_get_ethtool_stats(struct net_device *dev,
				     struct ethtool_stats *stats, u64 *data)
{
	struct batadv_priv *bat_priv = netdev_priv(dev);
	int i;

	for (i = 0; i < BATADV_CNT_NUM; i++)
		data[i] = batadv_sum_counter(bat_priv, i);
}

Annotation

Implementation Notes