diff options
Diffstat (limited to 'usr.sbin/pim6dd/route.c')
| -rw-r--r-- | usr.sbin/pim6dd/route.c | 114 |
1 files changed, 57 insertions, 57 deletions
diff --git a/usr.sbin/pim6dd/route.c b/usr.sbin/pim6dd/route.c index 6684f2c..8a39ae0 100644 --- a/usr.sbin/pim6dd/route.c +++ b/usr.sbin/pim6dd/route.c @@ -10,15 +10,15 @@ * documentation, and that any documentation, advertising materials, * and other materials related to such distribution and use acknowledge * that the software was developed by the University of Oregon. - * The name of the University of Oregon may not be used to endorse or - * promote products derived from this software without specific prior + * The name of the University of Oregon may not be used to endorse or + * promote products derived from this software without specific prior * written permission. * * THE UNIVERSITY OF OREGON DOES NOT MAKE ANY REPRESENTATIONS * ABOUT THE SUITABILITY OF THIS SOFTWARE FOR ANY PURPOSE. THIS SOFTWARE IS * PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND * NON-INFRINGEMENT. * * IN NO EVENT SHALL UO, OR ANY OTHER CONTRIBUTOR BE LIABLE FOR ANY @@ -30,7 +30,7 @@ * noted when applicable. */ /* - * Questions concerning this software should be directed to + * Questions concerning this software should be directed to * Kurt Windisch (kurtw@antc.uoregon.edu) * * $Id: route.c,v 1.3 1999/10/27 11:40:30 jinmei Exp $ @@ -39,13 +39,13 @@ * Part of this program has been derived from PIM sparse-mode pimd. * The pimd program is covered by the license in the accompanying file * named "LICENSE.pimd". - * + * * The pimd program is COPYRIGHT 1998 by University of Southern California. * * Part of this program has been derived from mrouted. * The mrouted program is covered by the license in the accompanying file * named "LICENSE.mrouted". - * + * * The mrouted program is COPYRIGHT 1989 by The Board of Trustees of * Leland Stanford Junior University. * @@ -119,7 +119,7 @@ find_pim6_nbr(source) * Set the iif, upstream router, preference and metric for the route * toward the source. Return TRUE is the route was found, othewise FALSE. * If srctype==PIM_IIF_SOURCE and if the source is directly connected - * then the "upstream" is set to NULL. + * then the "upstream" is set to NULL. * Note that srctype is a hold-over from the PIM-SM daemon and is unused. */ int @@ -134,7 +134,7 @@ set_incoming(srcentry_ptr, srctype) register pim_nbr_entry_t *n; /* Preference will be 0 if directly connected */ - srcentry_ptr->preference = 0; + srcentry_ptr->preference = 0; srcentry_ptr->metric = 0; if ((srcentry_ptr->incoming = local_address(source)) != NO_VIF) { @@ -160,7 +160,7 @@ set_incoming(srcentry_ptr, srctype) neighbor_addr = &rpfc.rpfneighbor; } else { - /* The source is directly connected. + /* The source is directly connected. */ srcentry_ptr->upstream = (pim_nbr_entry_t *)NULL; return (TRUE); @@ -193,13 +193,13 @@ set_incoming(srcentry_ptr, srctype) } else break; } - + /* TODO: control the number of messages! */ log(LOG_INFO, 0, "For src %s, iif is %d, next hop router is %s: NOT A PIM ROUTER", inet6_fmt(&source->sin6_addr), srcentry_ptr->incoming, inet6_fmt(&neighbor_addr->sin6_addr)); - srcentry_ptr->upstream = (pim_nbr_entry_t *)NULL; + srcentry_ptr->upstream = (pim_nbr_entry_t *)NULL; return(FALSE); } @@ -211,10 +211,10 @@ void set_leaves(mrtentry_ptr) { vifi_t vifi; struct uvif *v; - + /* Check for a group report on each vif */ - for (vifi = 0, v = uvifs; vifi < numvifs; ++vifi, ++v) - if(check_multicast_listener(v, &mrtentry_ptr->group->group)) + for (vifi = 0, v = uvifs; vifi < numvifs; ++vifi, ++v) + if(check_multicast_listener(v, &mrtentry_ptr->group->group)) IF_SET(vifi, &mrtentry_ptr->leaves); } @@ -245,21 +245,21 @@ add_leaf(vifi, source, group) mrtentry_srcs = mrtentry_srcs->grpnext) { /* if applicable, add the vif to the leaves */ - if (mrtentry_srcs->incoming == vifi) + if (mrtentry_srcs->incoming == vifi) continue; if(!(IF_ISSET(vifi, &mrtentry_srcs->leaves))) { IF_DEBUG(DEBUG_MRT) - log(LOG_DEBUG, 0, "Adding leaf vif %d for src %s group %s", + log(LOG_DEBUG, 0, "Adding leaf vif %d for src %s group %s", vifi, inet6_fmt(&mrtentry_srcs->source->address.sin6_addr), inet6_fmt(&group->sin6_addr)); IF_COPY(&mrtentry_srcs->leaves, &new_leaves); IF_SET(vifi, &new_leaves); /* Add the leaf */ - - state_change = + + state_change = change_interfaces(mrtentry_srcs, mrtentry_srcs->incoming, &mrtentry_srcs->pruned_oifs, @@ -267,7 +267,7 @@ add_leaf(vifi, source, group) &mrtentry_srcs->asserted_oifs); /* Handle transition from negative cache */ - if(state_change == 1) + if(state_change == 1) trigger_join_alert(mrtentry_srcs); } } @@ -306,7 +306,7 @@ delete_leaf(vifi, source, group) mrtentry_srcs = mrtentry_srcs->grpnext) { /* if applicable, delete the vif from the leaves */ - if (mrtentry_srcs->incoming == vifi) + if (mrtentry_srcs->incoming == vifi) continue; if(IF_ISSET(vifi, &mrtentry_srcs->leaves)) { @@ -314,13 +314,13 @@ delete_leaf(vifi, source, group) IF_DEBUG(DEBUG_MRT) log(LOG_DEBUG, 0, "Deleting leaf vif %d for src %s, group %s", vifi, - inet6_fmt(&mrtentry_srcs->source->address.sin6_addr), + inet6_fmt(&mrtentry_srcs->source->address.sin6_addr), inet6_fmt(&group->sin6_addr)); - + IF_COPY(&mrtentry_srcs->leaves, &new_leaves); IF_CLR(vifi, &new_leaves); /* Remove the leaf */ - - state_change = + + state_change = change_interfaces(mrtentry_srcs, mrtentry_srcs->incoming, &mrtentry_srcs->pruned_oifs, @@ -344,7 +344,7 @@ calc_oifs(mrtentry_ptr, oifs_ptr) /* * oifs = * ((nbr_ifs - my_prune) + my_leaves) - my_filters - incoming_interface, - * i.e.`leaves` have higher priority than `prunes`, but lower than `filters'. + * i.e.`leaves` have higher priority than `prunes`, but lower than `filters'. * Asserted oifs (those that lost assert) are handled as pruned oifs. * The incoming interface is always deleted from the oifs */ @@ -353,7 +353,7 @@ calc_oifs(mrtentry_ptr, oifs_ptr) IF_ZERO(oifs_ptr); return; } - + IF_COPY(&nbr_mifs, &oifs); IF_CLR_MASK(&oifs, &mrtentry_ptr->pruned_oifs); IF_MERGE(&oifs, &mrtentry_ptr->leaves, &oifs); @@ -372,7 +372,7 @@ calc_oifs(mrtentry_ptr, oifs_ptr) * else return 0 * If the iif change or if the oifs change from NULL to non-NULL * or vice-versa, then schedule that mrtentry join/prune timer to - * timeout immediately. + * timeout immediately. */ int change_interfaces(mrtentry_ptr, new_iif, new_pruned_oifs, @@ -391,7 +391,7 @@ change_interfaces(mrtentry_ptr, new_iif, new_pruned_oifs, if_set old_asserted_oifs; /* unnecessary? */ vifi_t old_iif; int return_value; - + if (mrtentry_ptr == (mrtentry_t *)NULL) return (0); @@ -403,7 +403,7 @@ change_interfaces(mrtentry_ptr, new_iif, new_pruned_oifs, IF_COPY(&mrtentry_ptr->asserted_oifs, &old_asserted_oifs); IF_COPY(&mrtentry_ptr->oifs, &old_real_oifs); - + mrtentry_ptr->incoming = new_iif; IF_COPY(new_pruned_oifs, &mrtentry_ptr->pruned_oifs); IF_COPY(&new_leaves, &mrtentry_ptr->leaves); @@ -427,7 +427,7 @@ change_interfaces(mrtentry_ptr, new_iif, new_pruned_oifs, return 0; /* Nothing to change */ IF_COPY(&new_real_oifs, &mrtentry_ptr->oifs); - + k_chg_mfc(mld6_socket, &mrtentry_ptr->source->address, &mrtentry_ptr->group->group, new_iif, &new_real_oifs); @@ -437,7 +437,7 @@ change_interfaces(mrtentry_ptr, new_iif, new_pruned_oifs, return (return_value); } - + /* TODO: implement it. Required to allow changing of the physical interfaces * configuration without need to restart pimd. @@ -457,22 +457,22 @@ max_prune_timeout(mrtentry_ptr) vifi_t vifi; #if 0 /* XXX: I don't understand how the variable works...(jinmei@kame.net) */ - u_int16 time_left = 0; -#endif + u_int16 time_left = 0; +#endif u_int16 max_holdtime = 0; - for(vifi=0; vifi < numvifs; ++vifi) - if(IF_ISSET(vifi, &mrtentry_ptr->pruned_oifs) && - mrtentry_ptr->prune_timers[vifi]) + for(vifi=0; vifi < numvifs; ++vifi) + if(IF_ISSET(vifi, &mrtentry_ptr->pruned_oifs) && + mrtentry_ptr->prune_timers[vifi]) /* XXX - too expensive ? */ if(mrtentry_ptr->prune_timers[vifi] > max_holdtime) max_holdtime = mrtentry_ptr->prune_timers[vifi]; #if 0 /* XXX: This is original. But does it have any meaning? */ max_holdtime = time_left; -#endif +#endif - if(max_holdtime == 0) + if(max_holdtime == 0) max_holdtime = (u_int16)PIM_JOIN_PRUNE_HOLDTIME; return(max_holdtime); @@ -483,9 +483,9 @@ void process_kernel_call() { register struct mrt6msg *im; /* igmpmsg control struct */ - + im = (struct mrt6msg *) mld6_recv_buf; - + switch (im->im6_msgtype) { case MRT6MSG_NOCACHE: process_cache_miss(im); @@ -523,23 +523,23 @@ process_cache_miss(im) source.sin6_addr = im->im6_src; group.sin6_scope_id = inet6_uvif2scopeid(&group, &uvifs[im->im6_mif]); source.sin6_scope_id = inet6_uvif2scopeid(&source, &uvifs[im->im6_mif]); - + IF_DEBUG(DEBUG_MFC) log(LOG_DEBUG, 0, "Cache miss, src %s, dst %s", - inet6_fmt(&source.sin6_addr), inet6_fmt(&group.sin6_addr)); + inet6_fmt(&source.sin6_addr), inet6_fmt(&group.sin6_addr)); /* Don't create routing entries for the LAN scoped addresses */ if (IN6_IS_ADDR_MC_NODELOCAL(&group.sin6_addr) ||/* sanity? */ IN6_IS_ADDR_MC_LINKLOCAL(&group.sin6_addr)) - return; - + return; + /* Create the (S,G) entry */ mrtentry_ptr = find_route(&source, &group, MRTF_SG, CREATE); if (mrtentry_ptr == (mrtentry_t *)NULL) return; mrtentry_ptr->flags &= ~MRTF_NEW; - - /* Set oifs */ + + /* Set oifs */ set_leaves(mrtentry_ptr); calc_oifs(mrtentry_ptr, &(mrtentry_ptr->oifs)); @@ -560,7 +560,7 @@ process_cache_miss(im) /* * A multicast packet has been received on wrong iif by the kernel. * If the packet was received on a point-to-point interface, rate-limit - * prunes. if the packet was received on a LAN interface, rate-limit + * prunes. if the packet was received on a LAN interface, rate-limit * asserts. */ static void @@ -581,7 +581,7 @@ process_wrong_iif(im) /* PIMDM TODO Don't create routing entries for the LAN scoped addresses */ if (IN6_IS_ADDR_MC_NODELOCAL(&group.sin6_addr) ||/* sanity? */ IN6_IS_ADDR_MC_LINKLOCAL(&group.sin6_addr)) - return; + return; mrtentry_ptr = find_route(&source, &group, MRTF_SG, DONT_CREATE); if(mrtentry_ptr == (mrtentry_t *)NULL) @@ -599,14 +599,14 @@ process_wrong_iif(im) mrtentry_ptr->last_prune[mifi] = virtual_time; if(uvifs[mifi].uv_rmt_addr) - send_pim6_jp(mrtentry_ptr, PIM_ACTION_PRUNE, mifi, - uvifs[mifi].uv_rmt_addr, + send_pim6_jp(mrtentry_ptr, PIM_ACTION_PRUNE, mifi, + uvifs[mifi].uv_rmt_addr, max_prune_timeout(mrtentry_ptr), 0); - else - log(LOG_WARNING, 0, + else + log(LOG_WARNING, 0, "Can't send wrongvif prune on p2p %s: no remote address", uvifs[mifi].uv_lcl_addr); - } else + } else #endif { @@ -629,16 +629,16 @@ trigger_prune_alert(mrtentry_ptr) { IF_DEBUG(DEBUG_MRT) log(LOG_DEBUG, 0, "Now negative cache for src %s, grp %s - pruning", - inet6_fmt(&mrtentry_ptr->source->address.sin6_addr), + inet6_fmt(&mrtentry_ptr->source->address.sin6_addr), inet6_fmt(&mrtentry_ptr->group->group.sin6_addr)); /* Set the entry timer to the max of the prune timers */ SET_TIMER(mrtentry_ptr->timer, max_prune_timeout(mrtentry_ptr)); /* Send a prune */ - if(mrtentry_ptr->upstream) + if(mrtentry_ptr->upstream) send_pim6_jp(mrtentry_ptr, PIM_ACTION_PRUNE, mrtentry_ptr->incoming, - &mrtentry_ptr->upstream->address, + &mrtentry_ptr->upstream->address, max_prune_timeout(mrtentry_ptr), 0); } @@ -648,7 +648,7 @@ trigger_join_alert(mrtentry_ptr) { IF_DEBUG(DEBUG_MRT) log(LOG_DEBUG, 0, "Now forwarding state for src %s, grp %s - grafting", - inet6_fmt(&mrtentry_ptr->source->address.sin6_addr), + inet6_fmt(&mrtentry_ptr->source->address.sin6_addr), inet6_fmt(&mrtentry_ptr->group->group.sin6_addr)); /* Refresh the entry timer */ |
