diff options
Diffstat (limited to 'src/vnet/adj/adj_glean.c')
| -rw-r--r-- | src/vnet/adj/adj_glean.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/vnet/adj/adj_glean.c b/src/vnet/adj/adj_glean.c index e956318a1ff..8df104bd19d 100644 --- a/src/vnet/adj/adj_glean.c +++ b/src/vnet/adj/adj_glean.c @@ -258,8 +258,8 @@ adj_glean_get_src (fib_protocol_t proto, u32 sw_if_index, const ip46_address_t *nh) { + const ip46_address_t *conn, *source; const ip_adjacency_t *adj; - ip46_address_t *conn; adj_index_t ai; if (vec_len(adj_gleans[proto]) <= sw_if_index || @@ -274,23 +274,33 @@ adj_glean_get_src (fib_protocol_t proto, if (nh) pfx.fp_addr = *nh; + /* + * An interface can have more than one glean address. Where + * possible we want to return a source address from the same + * subnet as the destination. If this is not possible then any address + * will do. + */ + source = NULL; + hash_foreach_mem(conn, ai, adj_gleans[proto][sw_if_index], ({ adj = adj_get(ai); if (adj->sub_type.glean.rx_pfx.fp_len > 0) { + source = &adj->sub_type.glean.rx_pfx.fp_addr; + /* if no destination is specified use the just glean */ if (NULL == nh) - return (&adj->sub_type.glean.rx_pfx.fp_addr); + return (source); /* check the clean covers the desintation */ if (fib_prefix_is_cover(&adj->sub_type.glean.rx_pfx, &pfx)) - return (&adj->sub_type.glean.rx_pfx.fp_addr); + return (source); } })); - return (NULL); + return (source); } void |