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Merge branch 'cmaster' of ssh://stash.cumulusnetworks.com:7999/quag/quagga into cmaster

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This commit is contained in:
Donald Sharp 2015-12-08 15:26:56 -08:00
commit ef16372d77
12 changed files with 292 additions and 169 deletions
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37
bgpd/bgp_mpath.c
View File

@ -427,6 +427,7 @@ bgp_info_mpath_update (struct bgp_node *rn, struct bgp_info *new_best,
struct bgp_info *cur_mpath, *new_mpath, *next_mpath, *prev_mpath;
int mpath_changed, debug;
char pfx_buf[PREFIX2STR_BUFFER], nh_buf[2][INET6_ADDRSTRLEN];
char path_buf[PATH_ADDPATH_STR_BUFFER];
mpath_changed = 0;
maxpaths = MULTIPATH_NUM;
@ -500,11 +501,13 @@ bgp_info_mpath_update (struct bgp_node *rn, struct bgp_info *new_best,
{
mpath_changed = 1;
if (debug)
zlog_debug ("%s remove mpath nexthop %s peer %s", pfx_buf,
inet_ntop (AF_INET, &cur_mpath->attr->nexthop,
nh_buf[0], sizeof (nh_buf[0])),
sockunion2str (cur_mpath->peer->su_remote,
nh_buf[1], sizeof (nh_buf[1])));
{
bgp_info_path_with_addpath_rx_str(cur_mpath, path_buf);
zlog_debug ("%s remove mpath nexthop %s %s", pfx_buf,
inet_ntop (AF_INET, &cur_mpath->attr->nexthop,
nh_buf[0], sizeof (nh_buf[0])),
path_buf);
}
}
mp_node = mp_next_node;
cur_mpath = next_mpath;
@ -524,11 +527,13 @@ bgp_info_mpath_update (struct bgp_node *rn, struct bgp_info *new_best,
bgp_info_mpath_dequeue (cur_mpath);
mpath_changed = 1;
if (debug)
zlog_debug ("%s remove mpath nexthop %s peer %s", pfx_buf,
inet_ntop (AF_INET, &cur_mpath->attr->nexthop,
nh_buf[0], sizeof (nh_buf[0])),
sockunion2str (cur_mpath->peer->su_remote,
nh_buf[1], sizeof (nh_buf[1])));
{
bgp_info_path_with_addpath_rx_str(cur_mpath, path_buf);
zlog_debug ("%s remove mpath nexthop %s %s", pfx_buf,
inet_ntop (AF_INET, &cur_mpath->attr->nexthop,
nh_buf[0], sizeof (nh_buf[0])),
path_buf);
}
cur_mpath = next_mpath;
}
else
@ -558,11 +563,13 @@ bgp_info_mpath_update (struct bgp_node *rn, struct bgp_info *new_best,
mpath_changed = 1;
mpath_count++;
if (debug)
zlog_debug ("%s add mpath nexthop %s peer %s", pfx_buf,
inet_ntop (AF_INET, &new_mpath->attr->nexthop,
nh_buf[0], sizeof (nh_buf[0])),
sockunion2str (new_mpath->peer->su_remote,
nh_buf[1], sizeof (nh_buf[1])));
{
bgp_info_path_with_addpath_rx_str(new_mpath, path_buf);
zlog_debug ("%s add mpath nexthop %s %s", pfx_buf,
inet_ntop (AF_INET, &new_mpath->attr->nexthop,
nh_buf[0], sizeof (nh_buf[0])),
path_buf);
}
}
mp_node = mp_next_node;
}

228
bgpd/bgp_route.c
View File

@ -318,6 +318,15 @@ bgp_med_value (struct attr *attr, struct bgp *bgp)
}
}
void
bgp_info_path_with_addpath_rx_str (struct bgp_info *ri, char *buf)
{
if (ri->addpath_rx_id)
sprintf(buf, "path %s (addpath rxid %d)", ri->peer->host, ri->addpath_rx_id);
else
sprintf(buf, "path %s", ri->peer->host);
}
/* Compare two bgp route entity. If 'new' is preferable over 'exist' return 1. */
static int
bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
@ -342,6 +351,8 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
int internal_as_route;
int confed_as_route;
int ret;
char new_buf[PATH_ADDPATH_STR_BUFFER];
char exist_buf[PATH_ADDPATH_STR_BUFFER];
*paths_eq = 0;
@ -353,14 +364,19 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
return 0;
}
if (debug)
bgp_info_path_with_addpath_rx_str (new, new_buf);
if (exist == NULL)
{
if (debug)
zlog_debug("%s: path %s is the initial bestpath",
pfx_buf, new->peer->host);
zlog_debug("%s: %s is the initial bestpath", pfx_buf, new_buf);
return 1;
}
if (debug)
bgp_info_path_with_addpath_rx_str (exist, exist_buf);
newattr = new->attr;
existattr = exist->attr;
newattre = newattr->extra;
@ -377,18 +393,16 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (new_weight > exist_weight)
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to weight %d > %d",
pfx_buf, new->peer->host, exist->peer->host, new_weight,
exist_weight);
zlog_debug("%s: %s wins over %s due to weight %d > %d",
pfx_buf, new_buf, exist_buf, new_weight, exist_weight);
return 1;
}
if (new_weight < exist_weight)
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to weight %d < %d",
pfx_buf, new->peer->host, exist->peer->host, new_weight,
exist_weight);
zlog_debug("%s: %s loses to %s due to weight %d < %d",
pfx_buf, new_buf, exist_buf, new_weight, exist_weight);
return 0;
}
@ -403,18 +417,16 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (new_pref > exist_pref)
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to localpref %d > %d",
pfx_buf, new->peer->host, exist->peer->host, new_pref,
exist_pref);
zlog_debug("%s: %s wins over %s due to localpref %d > %d",
pfx_buf, new_buf, exist_buf, new_pref, exist_pref);
return 1;
}
if (new_pref < exist_pref)
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to localpref %d < %d",
pfx_buf, new->peer->host, exist->peer->host, new_pref,
exist_pref);
zlog_debug("%s: %s loses to %s due to localpref %d < %d",
pfx_buf, new_buf, exist_buf, new_pref, exist_pref);
return 0;
}
@ -426,16 +438,16 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (! (new->sub_type == BGP_ROUTE_NORMAL))
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to preferred BGP_ROUTE type",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s wins over %s due to preferred BGP_ROUTE type",
pfx_buf, new_buf, exist_buf);
return 1;
}
if (! (exist->sub_type == BGP_ROUTE_NORMAL))
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to preferred BGP_ROUTE type",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s loses to %s due to preferred BGP_ROUTE type",
pfx_buf, new_buf, exist_buf);
return 0;
}
@ -455,8 +467,8 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if ( aspath_hops < (exist_hops + exist_confeds))
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to aspath (with confeds) hopcount %d < %d",
pfx_buf, new->peer->host, exist->peer->host,
zlog_debug("%s: %s wins over %s due to aspath (with confeds) hopcount %d < %d",
pfx_buf, new_buf, exist_buf,
aspath_hops, (exist_hops + exist_confeds));
return 1;
}
@ -464,8 +476,8 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if ( aspath_hops > (exist_hops + exist_confeds))
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to aspath (with confeds) hopcount %d > %d",
pfx_buf, new->peer->host, exist->peer->host,
zlog_debug("%s: %s loses to %s due to aspath (with confeds) hopcount %d > %d",
pfx_buf, new_buf, exist_buf,
aspath_hops, (exist_hops + exist_confeds));
return 0;
}
@ -477,18 +489,16 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (newhops < exist_hops)
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to aspath hopcount %d < %d",
pfx_buf, new->peer->host, exist->peer->host,
newhops, exist_hops);
zlog_debug("%s: %s wins over %s due to aspath hopcount %d < %d",
pfx_buf, new_buf, exist_buf, newhops, exist_hops);
return 1;
}
if (newhops > exist_hops)
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to aspath hopcount %d > %d",
pfx_buf, new->peer->host, exist->peer->host,
newhops, exist_hops);
zlog_debug("%s: %s loses to %s due to aspath hopcount %d > %d",
pfx_buf, new_buf, exist_buf, newhops, exist_hops);
return 0;
}
}
@ -498,8 +508,8 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (newattr->origin < existattr->origin)
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to ORIGIN %s < %s",
pfx_buf, new->peer->host, exist->peer->host,
zlog_debug("%s: %s wins over %s due to ORIGIN %s < %s",
pfx_buf, new_buf, exist_buf,
bgp_origin_long_str[newattr->origin],
bgp_origin_long_str[existattr->origin]);
return 1;
@ -508,8 +518,8 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (newattr->origin > existattr->origin)
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to ORIGIN %s > %s",
pfx_buf, new->peer->host, exist->peer->host,
zlog_debug("%s: %s loses to %s due to ORIGIN %s > %s",
pfx_buf, new_buf, exist_buf,
bgp_origin_long_str[newattr->origin],
bgp_origin_long_str[existattr->origin]);
return 0;
@ -536,18 +546,16 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (new_med < exist_med)
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to MED %d < %d",
pfx_buf, new->peer->host, exist->peer->host, new_med,
exist_med);
zlog_debug("%s: %s wins over %s due to MED %d < %d",
pfx_buf, new_buf, exist_buf, new_med, exist_med);
return 1;
}
if (new_med > exist_med)
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to MED %d > %d",
pfx_buf, new->peer->host, exist->peer->host, new_med,
exist_med);
zlog_debug("%s: %s loses to %s due to MED %d > %d",
pfx_buf, new_buf, exist_buf, new_med, exist_med);
return 0;
}
}
@ -560,8 +568,8 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
&& (exist_sort == BGP_PEER_IBGP || exist_sort == BGP_PEER_CONFED))
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to eBGP peer > iBGP peer",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s wins over %s due to eBGP peer > iBGP peer",
pfx_buf, new_buf, exist_buf);
return 1;
}
@ -569,8 +577,8 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
&& (new_sort == BGP_PEER_IBGP || new_sort == BGP_PEER_CONFED))
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to iBGP peer < eBGP peer",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s loses to %s due to iBGP peer < eBGP peer",
pfx_buf, new_buf, exist_buf);
return 0;
}
@ -585,16 +593,16 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (newm < existm)
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to IGP metric %d < %d",
pfx_buf, new->peer->host, exist->peer->host, newm, existm);
zlog_debug("%s: %s wins over %s due to IGP metric %d < %d",
pfx_buf, new_buf, exist_buf, newm, existm);
ret = 1;
}
if (newm > existm)
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to IGP metric %d > %d",
pfx_buf, new->peer->host, exist->peer->host, newm, existm);
zlog_debug("%s: %s loses to %s due to IGP metric %d > %d",
pfx_buf, new_buf, exist_buf, newm, existm);
ret = 0;
}
@ -615,18 +623,16 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (newm < existm)
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to CLUSTER_LIST length %d < %d",
pfx_buf, new->peer->host, exist->peer->host, newm,
existm);
zlog_debug("%s: %s wins over %s due to CLUSTER_LIST length %d < %d",
pfx_buf, new_buf, exist_buf, newm, existm);
ret = 1;
}
if (newm > existm)
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to CLUSTER_LIST length %d > %d",
pfx_buf, new->peer->host, exist->peer->host, newm,
existm);
zlog_debug("%s: %s loses to %s due to CLUSTER_LIST length %d > %d",
pfx_buf, new_buf, exist_buf, newm, existm);
ret = 0;
}
}
@ -638,16 +644,16 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (new_sort == BGP_PEER_CONFED && exist_sort == BGP_PEER_IBGP)
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to confed-external peer > confed-internal peer",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s wins over %s due to confed-external peer > confed-internal peer",
pfx_buf, new_buf, exist_buf);
return 1;
}
if (exist_sort == BGP_PEER_CONFED && new_sort == BGP_PEER_IBGP)
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to confed-internal peer < confed-external peer",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s loses to %s due to confed-internal peer < confed-external peer",
pfx_buf, new_buf, exist_buf);
return 0;
}
}
@ -669,8 +675,8 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
*paths_eq = 1;
if (debug)
zlog_debug("%s: path %s and path %s are equal via multipath-relax",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s and %s are equal via multipath-relax",
pfx_buf, new_buf, exist_buf);
}
else if (new->peer->sort == BGP_PEER_IBGP)
{
@ -679,8 +685,8 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
*paths_eq = 1;
if (debug)
zlog_debug("%s: path %s and path %s are equal via matching aspaths",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s and %s are equal via matching aspaths",
pfx_buf, new_buf, exist_buf);
}
}
else if (new->peer->as == exist->peer->as)
@ -688,8 +694,8 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
*paths_eq = 1;
if (debug)
zlog_debug("%s: path %s and path %s are equal via same remote-as",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s and %s are equal via same remote-as",
pfx_buf, new_buf, exist_buf);
}
}
else
@ -712,16 +718,16 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (CHECK_FLAG (new->flags, BGP_INFO_SELECTED))
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to oldest external",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s wins over %s due to oldest external",
pfx_buf, new_buf, exist_buf);
return 1;
}
if (CHECK_FLAG (exist->flags, BGP_INFO_SELECTED))
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to oldest external",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s loses to %s due to oldest external",
pfx_buf, new_buf, exist_buf);
return 0;
}
}
@ -743,16 +749,16 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (ntohl (new_id.s_addr) < ntohl (exist_id.s_addr))
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to Router-ID comparison",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s wins over %s due to Router-ID comparison",
pfx_buf, new_buf, exist_buf);
return 1;
}
if (ntohl (new_id.s_addr) > ntohl (exist_id.s_addr))
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to Router-ID comparison",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s loses to %s due to Router-ID comparison",
pfx_buf, new_buf, exist_buf);
return 0;
}
@ -763,18 +769,16 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (new_cluster < exist_cluster)
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to CLUSTER_LIST length %d < %d",
pfx_buf, new->peer->host, exist->peer->host, new_cluster,
exist_cluster);
zlog_debug("%s: %s wins over %s due to CLUSTER_LIST length %d < %d",
pfx_buf, new_buf, exist_buf, new_cluster, exist_cluster);
return 1;
}
if (new_cluster > exist_cluster)
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to CLUSTER_LIST length %d > %d",
pfx_buf, new->peer->host, exist->peer->host, new_cluster,
exist_cluster);
zlog_debug("%s: %s loses to %s due to CLUSTER_LIST length %d > %d",
pfx_buf, new_buf, exist_buf, new_cluster, exist_cluster);
return 0;
}
@ -785,16 +789,16 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (CHECK_FLAG (exist->flags, BGP_INFO_STALE))
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to latter path being STALE",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s wins over %s due to latter path being STALE",
pfx_buf, new_buf, exist_buf);
return 1;
}
if (CHECK_FLAG (new->flags, BGP_INFO_STALE))
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to former path being STALE",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s loses to %s due to former path being STALE",
pfx_buf, new_buf, exist_buf);
return 0;
}
@ -803,22 +807,22 @@ bgp_info_cmp (struct bgp *bgp, struct bgp_info *new, struct bgp_info *exist,
if (ret == 1)
{
if (debug)
zlog_debug("%s: path %s loses to path %s due to Neighor IP comparison",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s loses to %s due to Neighor IP comparison",
pfx_buf, new_buf, exist_buf);
return 0;
}
if (ret == -1)
{
if (debug)
zlog_debug("%s: path %s wins over path %s due to Neighor IP comparison",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s wins over %s due to Neighor IP comparison",
pfx_buf, new_buf, exist_buf);
return 1;
}
if (debug)
zlog_debug("%s: path %s wins over path %s due to nothing left to compare",
pfx_buf, new->peer->host, exist->peer->host);
zlog_debug("%s: %s wins over %s due to nothing left to compare",
pfx_buf, new_buf, exist_buf);
return 1;
}
@ -1507,6 +1511,7 @@ bgp_best_selection (struct bgp *bgp, struct bgp_node *rn,
int paths_eq, do_mpath, debug;
struct list mp_list;
char pfx_buf[PREFIX2STR_BUFFER];
char path_buf[PATH_ADDPATH_STR_BUFFER];
bgp_mp_list_init (&mp_list);
do_mpath = (mpath_cfg->maxpaths_ebgp > 1 || mpath_cfg->maxpaths_ibgp > 1);
@ -1572,9 +1577,11 @@ bgp_best_selection (struct bgp *bgp, struct bgp_node *rn,
bgp_info_set_flag (rn, new_select, BGP_INFO_DMED_SELECTED);
if (debug)
zlog_debug("%s: path %s is the bestpath from AS %d",
pfx_buf, new_select->peer->host,
aspath_get_firstas(new_select->attr->aspath));
{
bgp_info_path_with_addpath_rx_str (new_select, path_buf);
zlog_debug("%s: %s is the bestpath from AS %d",
pfx_buf, path_buf, aspath_get_firstas(new_select->attr->aspath));
}
}
}
@ -1625,16 +1632,22 @@ bgp_best_selection (struct bgp *bgp, struct bgp_node *rn,
if (do_mpath && new_select)
{
if (debug)
zlog_debug("%s: path %s is the bestpath, now find multipaths",
pfx_buf, new_select->peer->host);
{
bgp_info_path_with_addpath_rx_str (new_select, path_buf);
zlog_debug("%s: %s is the bestpath, now find multipaths", pfx_buf, path_buf);
}
for (ri = rn->info; (ri != NULL) && (nextri = ri->next, 1); ri = nextri)
{
if (debug)
bgp_info_path_with_addpath_rx_str (ri, path_buf);
if (ri == new_select)
{
if (debug)
zlog_debug("%s: path %s is the bestpath, add to the multipath list",
pfx_buf, ri->peer->host);
zlog_debug("%s: %s is the bestpath, add to the multipath list",
pfx_buf, path_buf);
bgp_mp_list_add (&mp_list, ri);
continue;
}
@ -1651,8 +1664,8 @@ bgp_best_selection (struct bgp *bgp, struct bgp_node *rn,
if (!bgp_info_nexthop_cmp (ri, new_select))
{
if (debug)
zlog_debug("%s: path %s has the same nexthop as the bestpath, skip it",
pfx_buf, ri->peer->host);
zlog_debug("%s: %s has the same nexthop as the bestpath, skip it",
pfx_buf, path_buf);
continue;
}
@ -1661,8 +1674,8 @@ bgp_best_selection (struct bgp *bgp, struct bgp_node *rn,
if (paths_eq)
{
if (debug)
zlog_debug("%s: path %s is equivalent to the bestpath, add to the multipath list",
pfx_buf, ri->peer->host);
zlog_debug("%s: %s is equivalent to the bestpath, add to the multipath list",
pfx_buf, path_buf);
bgp_mp_list_add (&mp_list, ri);
}
}
@ -2080,12 +2093,13 @@ info_make (int type, int sub_type, u_short instance, struct peer *peer, struct a
}
static void
bgp_info_addpath_rx_str(struct bgp_info *ri, char *buf)
bgp_info_addpath_rx_str(u_int32_t addpath_id, char *buf)
{
if (ri && ri->addpath_rx_id)
sprintf(buf, " with addpath ID %d", ri->addpath_rx_id);
if (addpath_id)
sprintf(buf, " with addpath ID %d", addpath_id);
}
/* Check if received nexthop is valid or not. */
static int
bgp_update_martian_nexthop (afi_t afi, safi_t safi, struct attr *attr)
@ -2258,7 +2272,7 @@ bgp_update_main (struct peer *peer, struct prefix *p, u_int32_t addpath_id,
{
if (bgp_debug_update(peer, p, NULL, 1))
{
bgp_info_addpath_rx_str(ri, buf2);
bgp_info_addpath_rx_str(addpath_id, buf2);
zlog_debug ("%s rcvd %s/%d%s",
peer->host,
inet_ntop(p->family, &p->u.prefix, buf, SU_ADDRSTRLEN),
@ -2281,7 +2295,7 @@ bgp_update_main (struct peer *peer, struct prefix *p, u_int32_t addpath_id,
peer->rcvd_attr_printed = 1;
}
bgp_info_addpath_rx_str(ri, buf2);
bgp_info_addpath_rx_str(addpath_id, buf2);
zlog_debug ("%s rcvd %s/%d%s...duplicate ignored",
peer->host,
inet_ntop(p->family, &p->u.prefix, buf, SU_ADDRSTRLEN),
@ -2307,7 +2321,7 @@ bgp_update_main (struct peer *peer, struct prefix *p, u_int32_t addpath_id,
{
if (bgp_debug_update(peer, p, NULL, 1))
{
bgp_info_addpath_rx_str(ri, buf2);
bgp_info_addpath_rx_str(addpath_id, buf2);
zlog_debug ("%s rcvd %s/%d%s, flapped quicker than processing",
peer->host,
inet_ntop(p->family, &p->u.prefix, buf, SU_ADDRSTRLEN),
@ -2319,7 +2333,7 @@ bgp_update_main (struct peer *peer, struct prefix *p, u_int32_t addpath_id,
/* Received Logging. */
if (bgp_debug_update(peer, p, NULL, 1))
{
bgp_info_addpath_rx_str(ri, buf2);
bgp_info_addpath_rx_str(addpath_id, buf2);
zlog_debug ("%s rcvd %s/%d%s",
peer->host,
inet_ntop(p->family, &p->u.prefix, buf, SU_ADDRSTRLEN),
@ -2413,7 +2427,7 @@ bgp_update_main (struct peer *peer, struct prefix *p, u_int32_t addpath_id,
peer->rcvd_attr_printed = 1;
}
bgp_info_addpath_rx_str(ri, buf2);
bgp_info_addpath_rx_str(addpath_id, buf2);
zlog_debug ("%s rcvd %s/%d%s",
peer->host,
inet_ntop(p->family, &p->u.prefix, buf, SU_ADDRSTRLEN),
@ -2486,7 +2500,7 @@ bgp_update_main (struct peer *peer, struct prefix *p, u_int32_t addpath_id,
peer->rcvd_attr_printed = 1;
}
bgp_info_addpath_rx_str(ri, buf2);
bgp_info_addpath_rx_str(addpath_id, buf2);
zlog_debug ("%s rcvd UPDATE about %s/%d%s -- DENIED due to: %s",
peer->host,
inet_ntop (p->family, &p->u.prefix, buf, SU_ADDRSTRLEN),
@ -2541,7 +2555,7 @@ bgp_withdraw (struct peer *peer, struct prefix *p, u_int32_t addpath_id,
/* Logging. */
if (bgp_debug_update(peer, p, NULL, 1))
{
bgp_info_addpath_rx_str(ri, buf2);
bgp_info_addpath_rx_str(addpath_id, buf2);
zlog_debug ("%s rcvd UPDATE about %s/%d%s -- withdrawn",
peer->host,
inet_ntop(p->family, &p->u.prefix, buf, SU_ADDRSTRLEN),

4
bgpd/bgp_route.h
View File

@ -191,6 +191,9 @@ struct bgp_static
#define UNSUPPRESS_MAP_NAME(F) ((F)->usmap.name)
#define UNSUPPRESS_MAP(F) ((F)->usmap.map)
/* path PREFIX (addpath rxid NUMBER) */
#define PATH_ADDPATH_STR_BUFFER PREFIX2STR_BUFFER + 32
enum bgp_path_type
{
BGP_PATH_ALL,
@ -229,6 +232,7 @@ extern void bgp_info_delete (struct bgp_node *rn, struct bgp_info *ri);
extern struct bgp_info_extra *bgp_info_extra_get (struct bgp_info *);
extern void bgp_info_set_flag (struct bgp_node *, struct bgp_info *, u_int32_t);
extern void bgp_info_unset_flag (struct bgp_node *, struct bgp_info *, u_int32_t);
extern void bgp_info_path_with_addpath_rx_str (struct bgp_info *ri, char *buf);
extern int bgp_nlri_sanity_check (struct peer *, int, safi_t, u_char *, bgp_size_t, int *);
extern int bgp_nlri_parse (struct peer *, struct attr *, struct bgp_nlri *);

2
bgpd/bgp_updgrp.h
View File

@ -58,6 +58,8 @@
#define PEER_UPDGRP_AF_CAP_FLAGS (PEER_CAP_ORF_PREFIX_SM_RCV | \
PEER_CAP_ORF_PREFIX_SM_OLD_RCV |\
PEER_CAP_ADDPATH_AF_TX_ADV |\
PEER_CAP_ADDPATH_AF_RX_RCV |\
PEER_CAP_ENHE_AF_NEGO)
typedef enum

2
zebra/Makefile.am
View File

@ -39,7 +39,7 @@ zebra_SOURCES = \
testzebra_SOURCES = test_main.c zebra_rib.c interface.c connected.c debug.c \
zebra_vty.c zebra_ptm.c zebra_routemap.c \
kernel_null.c redistribute_null.c ioctl_null.c misc_null.c zebra_rnh_null.c \
zebra_ptm_null.c
zebra_ptm_null.c rtadv_null.c
noinst_HEADERS = \
connected.h ioctl.h rib.h rt.h zserv.h redistribute.h debug.h rtadv.h \

8
zebra/connected.c
View File

@ -36,6 +36,7 @@
#include "zebra/redistribute.h"
#include "zebra/interface.h"
#include "zebra/connected.h"
#include "zebra/rtadv.h"
extern struct zebra_t zebrad;
/* communicate the withdrawal of a connected address */
@ -71,6 +72,10 @@ connected_withdraw (struct connected *ifc)
listnode_delete (ifc->ifp->connected, ifc);
connected_free (ifc);
}
/* Enable RA suppression if there are no IPv6 addresses on this interface */
if (! ipv6_address_configured(ifc->ifp))
ipv6_nd_suppress_ra_set (ifc->ifp, RA_SUPPRESS);
}
static void
@ -93,6 +98,9 @@ connected_announce (struct interface *ifp, struct connected *ifc)
if (ifc->address->family == AF_INET)
if_subnet_add (ifp, ifc);
else if (ifc->address->family == AF_INET6)
ipv6_nd_suppress_ra_set (ifp, RA_ENABLE);
zebra_interface_address_add_update (ifp, ifc);
if (if_is_operative(ifp))

20
zebra/interface.c
View File

@ -1730,6 +1730,8 @@ ipv6_address_install (struct vty *vty, struct interface *ifp,
/* Add to linked list. */
listnode_add (ifp->connected, ifc);
ipv6_nd_suppress_ra_set (ifp, RA_ENABLE);
}
/* This address is configured from zebra. */
@ -1765,6 +1767,20 @@ ipv6_address_install (struct vty *vty, struct interface *ifp,
return CMD_SUCCESS;
}
/* Return true if an ipv6 address is configured on ifp */
int
ipv6_address_configured (struct interface *ifp)
{
struct connected *connected;
struct listnode *node;
for (ALL_LIST_ELEMENTS_RO (ifp->connected, node, connected))
if (CHECK_FLAG (connected->conf, ZEBRA_IFC_REAL) && (connected->address->family == AF_INET6))
return 1;
return 0;
}
static int
ipv6_address_uninstall (struct vty *vty, struct interface *ifp,
const char *addr_str, const char *peer_str,
@ -1814,6 +1830,10 @@ ipv6_address_uninstall (struct vty *vty, struct interface *ifp,
return CMD_WARNING;
}
/* Enable RA suppression if there are no IPv6 addresses on this interface */
if (! ipv6_address_configured(ifp))
ipv6_nd_suppress_ra_set (ifp, RA_SUPPRESS);
UNSET_FLAG (ifc->conf, ZEBRA_IFC_QUEUED);
/* This information will be propagated to the zclients when the
* kernel notification is received. */

1
zebra/interface.h
View File

@ -217,6 +217,7 @@ extern void if_refresh (struct interface *);
extern void if_flags_update (struct interface *, uint64_t);
extern int if_subnet_add (struct interface *, struct connected *);
extern int if_subnet_delete (struct interface *, struct connected *);
extern int ipv6_address_configured (struct interface *ifp);
#ifdef HAVE_PROC_NET_DEV
extern void ifstat_update_proc (void);

87
zebra/rtadv.c
View File

@ -707,6 +707,46 @@ rtadv_prefix_reset (struct zebra_if *zif, struct rtadv_prefix *rp)
return 0;
}
void
ipv6_nd_suppress_ra_set (struct interface *ifp, ipv6_nd_suppress_ra_status status)
{
struct zebra_if *zif;
struct zebra_vrf *zvrf;
zif = ifp->info;
zvrf = vrf_info_lookup (ifp->vrf_id);
if (status == RA_SUPPRESS)
{
/* RA is currently enabled */
if (zif->rtadv.AdvSendAdvertisements)
{
zif->rtadv.AdvSendAdvertisements = 0;
zif->rtadv.AdvIntervalTimer = 0;
zvrf->rtadv.adv_if_count--;
if_leave_all_router (zvrf->rtadv.sock, ifp);
if (zvrf->rtadv.adv_if_count == 0)
rtadv_event (zvrf, RTADV_STOP, 0);
}
}
else
{
if (! zif->rtadv.AdvSendAdvertisements)
{
zif->rtadv.AdvSendAdvertisements = 1;
zif->rtadv.AdvIntervalTimer = 0;
zvrf->rtadv.adv_if_count++;
if_join_all_router (zvrf->rtadv.sock, ifp);
if (zvrf->rtadv.adv_if_count == 1)
rtadv_event (zvrf, RTADV_START, zvrf->rtadv.sock);
}
}
}
DEFUN (ipv6_nd_suppress_ra,
ipv6_nd_suppress_ra_cmd,
"ipv6 nd suppress-ra",
@ -715,12 +755,8 @@ DEFUN (ipv6_nd_suppress_ra,
"Suppress Router Advertisement\n")
{
struct interface *ifp;
struct zebra_if *zif;
struct zebra_vrf *zvrf;
ifp = vty->index;
zif = ifp->info;
zvrf = vrf_info_lookup (ifp->vrf_id);
if (if_is_loopback (ifp))
{
@ -728,18 +764,7 @@ DEFUN (ipv6_nd_suppress_ra,
return CMD_WARNING;
}
if (zif->rtadv.AdvSendAdvertisements)
{
zif->rtadv.AdvSendAdvertisements = 0;
zif->rtadv.AdvIntervalTimer = 0;
zvrf->rtadv.adv_if_count--;
if_leave_all_router (zvrf->rtadv.sock, ifp);
if (zvrf->rtadv.adv_if_count == 0)
rtadv_event (zvrf, RTADV_STOP, 0);
}
ipv6_nd_suppress_ra_set (ifp, RA_SUPPRESS);
return CMD_SUCCESS;
}
@ -752,12 +777,8 @@ DEFUN (no_ipv6_nd_suppress_ra,
"Suppress Router Advertisement\n")
{
struct interface *ifp;
struct zebra_if *zif;
struct zebra_vrf *zvrf;
ifp = vty->index;
zif = ifp->info;
zvrf = vrf_info_lookup (ifp->vrf_id);
if (if_is_loopback (ifp))
{
@ -765,18 +786,7 @@ DEFUN (no_ipv6_nd_suppress_ra,
return CMD_WARNING;
}
if (! zif->rtadv.AdvSendAdvertisements)
{
zif->rtadv.AdvSendAdvertisements = 1;
zif->rtadv.AdvIntervalTimer = 0;
zvrf->rtadv.adv_if_count++;
if_join_all_router (zvrf->rtadv.sock, ifp);
if (zvrf->rtadv.adv_if_count == 1)
rtadv_event (zvrf, RTADV_START, zvrf->rtadv.sock);
}
ipv6_nd_suppress_ra_set (ifp, RA_ENABLE);
return CMD_SUCCESS;
}
@ -1760,10 +1770,17 @@ rtadv_config_write (struct vty *vty, struct interface *ifp)
if (! if_is_loopback (ifp))
{
if (zif->rtadv.AdvSendAdvertisements)
vty_out (vty, " no ipv6 nd suppress-ra%s", VTY_NEWLINE);
if (ipv6_address_configured(ifp))
{
if (! zif->rtadv.AdvSendAdvertisements)
vty_out (vty, " ipv6 nd suppress-ra%s", VTY_NEWLINE);
}
else
{
if (zif->rtadv.AdvSendAdvertisements)
vty_out (vty, " no ipv6 nd suppress-ra%s", VTY_NEWLINE);
}
}
interval = zif->rtadv.MaxRtrAdvInterval;
if (interval % 1000)

6
zebra/rtadv.h
View File

@ -100,8 +100,14 @@ extern const char *rtadv_pref_strs[];
#endif /* HAVE_RTADV */
typedef enum {
RA_ENABLE = 0,
RA_SUPPRESS,
} ipv6_nd_suppress_ra_status;
extern void rtadv_init (struct zebra_vrf *);
extern void rtadv_terminate (struct zebra_vrf *);
extern void rtadv_cmd_init (void);
extern void ipv6_nd_suppress_ra_set (struct interface *ifp, ipv6_nd_suppress_ra_status status);
#endif /* _ZEBRA_RTADV_H */

27
zebra/rtadv_null.c Normal file
View File

@ -0,0 +1,27 @@
/*
* Copyright (C) 2015 Cumulus Networks, Inc.
*
* This file is part of Quagga.
*
* Quagga is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* Quagga is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Quagga; see the file COPYING. If not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include <zebra.h>
#include <lib/prefix.h>
#include <rtadv.h>
void ipv6_nd_suppress_ra_set (struct interface *ifp, ipv6_nd_suppress_ra_status status)
{ return; }

39
zebra/zebra_rib.c
View File

@ -1858,7 +1858,7 @@ rib_queue_init (struct zebra_t *zebra)
/* Add RIB to head of the route node. */
static void
rib_link (struct route_node *rn, struct rib *rib)
rib_link (struct route_node *rn, struct rib *rib, int process)
{
struct rib *head;
rib_dest_t *dest;
@ -1893,7 +1893,10 @@ rib_link (struct route_node *rn, struct rib *rib)
/* Further processing only if entry is in main table */
if ((rib->table == RT_TABLE_MAIN) || (rib->table == zebrad.rtm_table_default))
rib_queue_add (&zebrad, rn);
{
if (process)
rib_queue_add (&zebrad, rn);
}
else
{
afi = (rn->p.family == AF_INET) ? AFI_IP :
@ -1904,7 +1907,7 @@ rib_link (struct route_node *rn, struct rib *rib)
}
static void
rib_addnode (struct route_node *rn, struct rib *rib)
rib_addnode (struct route_node *rn, struct rib *rib, int process)
{
/* RIB node has been un-removed before route-node is processed.
* route_node must hence already be on the queue for processing..
@ -1914,7 +1917,7 @@ rib_addnode (struct route_node *rn, struct rib *rib)
UNSET_FLAG (rib->status, RIB_ENTRY_REMOVED);
return;
}
rib_link (rn, rib);
rib_link (rn, rib, process);
}
/*
@ -2097,7 +2100,7 @@ rib_add_ipv4 (int type, u_short instance, int flags, struct prefix_ipv4 *p,
if (IS_ZEBRA_DEBUG_RIB_DETAILED)
rib_dump ((struct prefix *)p, rib);
}
rib_addnode (rn, rib);
rib_addnode (rn, rib, 1);
/* Free implicit route.*/
if (same)
@ -2340,7 +2343,7 @@ rib_add_ipv4_multipath (struct prefix_ipv4 *p, struct rib *rib, safi_t safi)
if (IS_ZEBRA_DEBUG_RIB_DETAILED)
rib_dump ((struct prefix *)p, rib);
}
rib_addnode (rn, rib);
rib_addnode (rn, rib, 1);
ret = 1;
/* Free implicit route.*/
@ -2571,7 +2574,12 @@ static_install_route (afi_t afi, safi_t safi, struct prefix *p, struct static_ro
si->vrf_id, buf, p->prefixlen, rn, rib, rib->type);
}
}
rib_queue_add (&zebrad, rn);
/* Schedule route for processing or invoke NHT, as appropriate. */
if (si->type == STATIC_IPV4_GATEWAY ||
si->type == STATIC_IPV6_GATEWAY)
zebra_evaluate_rnh(si->vrf_id, nh_p.family, 1, RNH_NEXTHOP_TYPE, &nh_p);
else
rib_queue_add (&zebrad, rn);
}
else
{
@ -2617,7 +2625,6 @@ static_install_route (afi_t afi, safi_t safi, struct prefix *p, struct static_ro
/* Save the flags of this static routes (reject, blackhole) */
rib->flags = si->flags;
/* Link this rib to the tree. */
if (IS_ZEBRA_DEBUG_RIB)
{
char buf[INET6_ADDRSTRLEN];
@ -2628,7 +2635,17 @@ static_install_route (afi_t afi, safi_t safi, struct prefix *p, struct static_ro
si->vrf_id, buf, p->prefixlen, rn, rib, rib->type);
}
}
rib_addnode (rn, rib);
/* Link this rib to the tree. Schedule for processing or invoke NHT,
* as appropriate.
*/
if (si->type == STATIC_IPV4_GATEWAY ||
si->type == STATIC_IPV6_GATEWAY)
{
rib_addnode (rn, rib, 0);
zebra_evaluate_rnh(si->vrf_id, nh_p.family, 1, RNH_NEXTHOP_TYPE, &nh_p);
}
else
rib_addnode (rn, rib, 1);
}
}
@ -3026,7 +3043,7 @@ rib_add_ipv6 (int type, u_short instance, int flags, struct prefix_ipv6 *p,
if (IS_ZEBRA_DEBUG_RIB_DETAILED)
rib_dump ((struct prefix *)p, rib);
}
rib_addnode (rn, rib);
rib_addnode (rn, rib, 1);
/* Free implicit route.*/
if (same)
@ -3147,7 +3164,7 @@ rib_add_ipv6_multipath (struct prefix *p, struct rib *rib, safi_t safi,
if (IS_ZEBRA_DEBUG_RIB_DETAILED)
rib_dump ((struct prefix *)p, rib);
}
rib_addnode (rn, rib);
rib_addnode (rn, rib, 1);
ret = 1;
/* Free implicit route.*/