int dev_mc_add(struct net_device *dev, void *addr, int alen, int glbl) { int err; netif_addr_lock_bh(dev); if (alen != dev->addr_len) return -EINVAL; err = __dev_addr_add(&dev->mc_list, &dev->mc_count, addr, alen, glbl); if (!err) __dev_set_rx_mode(dev); netif_addr_unlock_bh(dev); return err; }
/** * dev_mc_sync - Synchronize device's multicast list to another device * @to: destination device * @from: source device * * Add newly added addresses to the destination device and release * addresses that have no users left. The source device must be * locked by netif_tx_lock_bh. * * This function is intended to be called from the dev->set_multicast_list * or dev->set_rx_mode function of layered software devices. */ int dev_mc_sync(struct net_device *to, struct net_device *from) { int err = 0; netif_addr_lock_bh(to); err = __dev_addr_sync(&to->mc_list, &to->mc_count, &from->mc_list, &from->mc_count); if (!err) __dev_set_rx_mode(to); netif_addr_unlock_bh(to); return err; }
static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd, struct net_device *dev, int nr_addrs) { int i = nr_addrs; struct netdev_hw_addr *ha; int cnt; if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST)) return nr_addrs; netif_addr_lock_bh(dev); cnt = netdev_mc_count(dev); netdev_for_each_mc_addr(ha, dev) { #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) if (mac_in_list(cmd->maclist, nr_addrs, ha->addr)) { #else if (mac_in_list(cmd->maclist, nr_addrs, ha->dmi_addr)) { #endif lbs_deb_net("mcast address %s:%pM skipped\n", dev->name, #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) ha->addr); #else ha->dmi_addr); #endif cnt--; continue; } if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE) break; #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) memcpy(&cmd->maclist[6*i], ha->addr, ETH_ALEN); #else memcpy(&cmd->maclist[6*i], ha->dmi_addr, ETH_ALEN); #endif lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name, #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) ha->addr); #else ha->dmi_addr); #endif i++; cnt--; } netif_addr_unlock_bh(dev); if (cnt) return -EOVERFLOW; return i; }
int dev_mc_delete(struct net_device *dev, void *addr, int alen, int glbl) { int err; netif_addr_lock_bh(dev); err = __dev_addr_delete(&dev->mc_list, &dev->mc_count, addr, alen, glbl); if (!err) { /* * We have altered the list, so the card * loaded filter is now wrong. Fix it */ __dev_set_rx_mode(dev); } netif_addr_unlock_bh(dev); return err; }
static int dev_mc_seq_show(struct seq_file *seq, void *v) { struct dev_addr_list *m; struct net_device *dev = v; if (v == SEQ_START_TOKEN) return 0; netif_addr_lock_bh(dev); for (m = dev->mc_list; m; m = m->next) { int i; seq_printf(seq, "%-4d %-15s %-5d %-5d ", dev->ifindex, dev->name, m->dmi_users, m->dmi_gusers); for (i = 0; i < m->dmi_addrlen; i++) seq_printf(seq, "%02x", m->dmi_addr[i]); seq_putc(seq, '\n'); } netif_addr_unlock_bh(dev); return 0; }