static int vif_add(struct net *net, struct vifctl *vifc, int mrtsock) { int vifi = vifc->vifc_vifi; struct vif_device *v = &net->ipv4.vif_table[vifi]; struct net_device *dev; struct in_device *in_dev; int err; /* Is vif busy ? */ if (VIF_EXISTS(net, vifi)) return -EADDRINUSE; switch (vifc->vifc_flags) { #ifdef CONFIG_IP_PIMSM case VIFF_REGISTER: /* * Special Purpose VIF in PIM * All the packets will be sent to the daemon */ if (net->ipv4.mroute_reg_vif_num >= 0) return -EADDRINUSE; dev = ipmr_reg_vif(net); if (!dev) return -ENOBUFS; err = dev_set_allmulti(dev, 1); if (err) { unregister_netdevice(dev); dev_put(dev); return err; } break; #endif case VIFF_TUNNEL: dev = ipmr_new_tunnel(net, vifc); if (!dev) return -ENOBUFS; err = dev_set_allmulti(dev, 1); if (err) { ipmr_del_tunnel(dev, vifc); dev_put(dev); return err; } break; case VIFF_USE_IFINDEX: case 0: if (vifc->vifc_flags == VIFF_USE_IFINDEX) { dev = dev_get_by_index(net, vifc->vifc_lcl_ifindex); if (dev && dev->ip_ptr == NULL) { dev_put(dev); return -EADDRNOTAVAIL; } } else dev = ip_dev_find(net, vifc->vifc_lcl_addr.s_addr); if (!dev) return -EADDRNOTAVAIL; err = dev_set_allmulti(dev, 1); if (err) { dev_put(dev); return err; } break; default: return -EINVAL; } if ((in_dev = __in_dev_get_rtnl(dev)) == NULL) { dev_put(dev); return -EADDRNOTAVAIL; } IPV4_DEVCONF(in_dev->cnf, MC_FORWARDING)++; ip_rt_multicast_event(in_dev); /* * Fill in the VIF structures */ v->rate_limit = vifc->vifc_rate_limit; v->local = vifc->vifc_lcl_addr.s_addr; v->remote = vifc->vifc_rmt_addr.s_addr; v->flags = vifc->vifc_flags; if (!mrtsock) v->flags |= VIFF_STATIC; v->threshold = vifc->vifc_threshold; v->bytes_in = 0; v->bytes_out = 0; v->pkt_in = 0; v->pkt_out = 0; v->link = dev->ifindex; if (v->flags&(VIFF_TUNNEL|VIFF_REGISTER)) v->link = dev->iflink; /* And finish update writing critical data */ write_lock_bh(&mrt_lock); v->dev = dev; #ifdef CONFIG_IP_PIMSM if (v->flags&VIFF_REGISTER) net->ipv4.mroute_reg_vif_num = vifi; #endif if (vifi+1 > net->ipv4.maxvif) net->ipv4.maxvif = vifi+1; write_unlock_bh(&mrt_lock); return 0; }
static int vif_add(struct vifctl *vifc, int mrtsock) { int vifi = vifc->vifc_vifi; struct vif_device *v = &vif_table[vifi]; struct net_device *dev; struct in_device *in_dev; /* Is vif busy ? */ if (VIF_EXISTS(vifi)) return -EADDRINUSE; switch (vifc->vifc_flags) { #ifdef CONFIG_IP_PIMSM case VIFF_REGISTER: /* * Special Purpose VIF in PIM * All the packets will be sent to the daemon */ if (reg_vif_num >= 0) return -EADDRINUSE; dev = ipmr_reg_vif(); if (!dev) return -ENOBUFS; break; #endif case VIFF_TUNNEL: dev = ipmr_new_tunnel(vifc); if (!dev) return -ENOBUFS; break; case 0: dev=ip_dev_find(vifc->vifc_lcl_addr.s_addr); if (!dev) return -EADDRNOTAVAIL; __dev_put(dev); break; default: return -EINVAL; } if ((in_dev = __in_dev_get_rtnl(dev)) == NULL) return -EADDRNOTAVAIL; in_dev->cnf.mc_forwarding++; dev_set_allmulti(dev, +1); ip_rt_multicast_event(in_dev); /* * Fill in the VIF structures */ v->rate_limit=vifc->vifc_rate_limit; v->local=vifc->vifc_lcl_addr.s_addr; v->remote=vifc->vifc_rmt_addr.s_addr; v->flags=vifc->vifc_flags; if (!mrtsock) v->flags |= VIFF_STATIC; v->threshold=vifc->vifc_threshold; v->bytes_in = 0; v->bytes_out = 0; v->pkt_in = 0; v->pkt_out = 0; v->link = dev->ifindex; if (v->flags&(VIFF_TUNNEL|VIFF_REGISTER)) v->link = dev->iflink; /* And finish update writing critical data */ write_lock_bh(&mrt_lock); dev_hold(dev); v->dev=dev; #ifdef CONFIG_IP_PIMSM if (v->flags&VIFF_REGISTER) reg_vif_num = vifi; #endif if (vifi+1 > maxvif) maxvif = vifi+1; write_unlock_bh(&mrt_lock); return 0; }
static int vif_add(struct vifctl *vifc, int mrtsock) { int vifi = vifc->vifc_vifi; struct vif_device *v = &vif_table[vifi]; struct net_device *dev; struct in_device *in_dev; /*[Santosh: to add "ppp" interface into VIF table]*/ #if defined (CONFIG_IFX_IGMP_PROXY) || defined (CONFIG_IFX_IGMP_PROXY_MODULE) struct in_device *ip; struct in_ifaddr *in; __u32 addr; dev=ip_dev_find(vifc->vifc_lcl_addr.s_addr); if (dev) __dev_put(dev); if (!dev){ addr = vifc->vifc_lcl_addr.s_addr; for(dev = dev_base; dev; dev = dev->next){ if (dev == NULL) continue; if (strncmp (dev->name,"ppp",3) != 0) continue; ip = dev->ip_ptr; if( (ip == NULL) || ((in = ip->ifa_list) == NULL )) { DBPRINT ("vif_add: Device: %s not assigned IP address\n",dev->name); } if (( in->ifa_address == addr ) && (strncmp (dev->name,"ppp",3) == 0)) { break; } } } // if (!dev) #endif /* Is vif busy ? */ if (VIF_EXISTS(vifi)) return -EADDRINUSE; switch (vifc->vifc_flags) { #ifdef CONFIG_IP_PIMSM case VIFF_REGISTER: /* * Special Purpose VIF in PIM * All the packets will be sent to the daemon */ if (reg_vif_num >= 0) return -EADDRINUSE; dev = ipmr_reg_vif(vifc); if (!dev) return -ENOBUFS; break; #endif case VIFF_TUNNEL: dev = ipmr_new_tunnel(vifc); if (!dev) return -ENOBUFS; break; case 0: /*[Santosh: to add "ppp" interface into VIF table]*/ #if defined (CONFIG_IFX_IGMP_PROXY) || defined (CONFIG_IFX_IGMP_PROXY_MODULE) if (strncmp (dev->name, "ppp",3) == 0) { break; } #endif dev=ip_dev_find(vifc->vifc_lcl_addr.s_addr); if (!dev) return -EADDRNOTAVAIL; __dev_put(dev); break; default: return -EINVAL; } if ((in_dev = __in_dev_get(dev)) == NULL) return -EADDRNOTAVAIL; in_dev->cnf.mc_forwarding++; dev_set_allmulti(dev, +1); ip_rt_multicast_event(in_dev); /* * Fill in the VIF structures */ v->rate_limit=vifc->vifc_rate_limit; v->local=vifc->vifc_lcl_addr.s_addr; v->remote=vifc->vifc_rmt_addr.s_addr; v->flags=vifc->vifc_flags; if (!mrtsock) v->flags |= VIFF_STATIC; v->threshold=vifc->vifc_threshold; v->bytes_in = 0; v->bytes_out = 0; v->pkt_in = 0; v->pkt_out = 0; v->link = dev->ifindex; if (v->flags&(VIFF_TUNNEL|VIFF_REGISTER)) v->link = dev->iflink; /* And finish update writing critical data */ write_lock_bh(&mrt_lock); dev_hold(dev); v->dev=dev; #ifdef CONFIG_IP_PIMSM if (v->flags&VIFF_REGISTER) reg_vif_num = vifi; #endif if (vifi+1 > maxvif) maxvif = vifi+1; write_unlock_bh(&mrt_lock); return 0; }