return s;
}
+ip_interface_address_t *
+ip_interface_get_first_interface_address (ip_lookup_main_t *lm, u32 sw_if_index,
+ u8 loop)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_sw_interface_t * swif = vnet_get_sw_interface (vnm, sw_if_index);
+ if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
+ sw_if_index = swif->unnumbered_sw_if_index;
+ u32 ia =
+ (vec_len((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ?
+ vec_elt((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) :
+ (u32) ~0;
+ return pool_elt_at_index((lm)->if_address_pool, ia);
+}
+
+void *
+ip_interface_get_first_address (ip_lookup_main_t * lm, u32 sw_if_index,
+ u8 version)
+{
+ ip_interface_address_t * ia;
+
+ ia = ip_interface_get_first_interface_address (lm, sw_if_index, 1);
+ if (!ia)
+ return 0;
+ return ip_interface_address_get_address (lm, ia);
+}
+
+int
+ip_interface_get_first_ip_address (lisp_cp_main_t * lcm, u32 sw_if_index,
+ u8 version, ip_address_t * result)
+{
+ ip_lookup_main_t * lm;
+ void * addr;
+
+ lm = (version == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
+ addr = ip_interface_get_first_address (lm, sw_if_index, version);
+ if (!addr)
+ return 0;
+
+ ip_address_set (result, addr, version);
+ return 1;
+}
+
static u32
ip_fib_lookup_with_table (lisp_cp_main_t * lcm, u32 fib_index,
ip_address_t * dst)
return ip6_fib_lookup_with_table (lcm->im6, fib_index, &ip_addr_v6(dst));
}
-static u32
-get_egress_iface_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst)
+u32
+ip_fib_get_egress_iface_for_dst_with_lm (lisp_cp_main_t * lcm,
+ ip_address_t * dst,
+ ip_lookup_main_t * lm)
{
u32 adj_index;
ip_adjacency_t * adj;
- ip_lookup_main_t * lm;
-
- lm = ip_addr_version (dst) == IP4 ?
- &lcm->im4->lookup_main : &lcm->im6->lookup_main;
adj_index = ip_fib_lookup_with_table (lcm, 0, dst);
adj = ip_get_adjacency (lm, adj_index);
if (adj == 0)
return ~0;
+ /* we only want outgoing routes */
+ if (adj->lookup_next_index != IP_LOOKUP_NEXT_ARP
+ && adj->lookup_next_index != IP_LOOKUP_NEXT_REWRITE)
+ return ~0;
+
return adj->rewrite_header.sw_if_index;
}
-void
-get_first_local_ip_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst,
- ip_address_t * result)
+/**
+ * Find the sw_if_index of the interface that would be used to egress towards
+ * dst.
+ */
+u32
+ip_fib_get_egress_iface_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst)
{
- u32 adj_index;
- ip_adjacency_t * adj;
- ip_interface_address_t * ia = 0;
ip_lookup_main_t * lm;
- ip4_address_t * l4 = 0;
- ip6_address_t * l6 = 0;
-
- ASSERT(result != 0);
lm = ip_addr_version (dst) == IP4 ?
&lcm->im4->lookup_main : &lcm->im6->lookup_main;
- adj_index = ip_fib_lookup_with_table (lcm, 0, dst);
- adj = ip_get_adjacency (lm, adj_index);
+ return ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
+}
- if (adj == 0)
- return;
+/**
+ * Find first IP of the interface that would be used to egress towards dst.
+ * Returns 1 if the address is found 0 otherwise.
+ */
+int
+ip_fib_get_first_egress_ip_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst,
+ ip_address_t * result)
+{
+ u32 si;
+ ip_lookup_main_t * lm;
+ void * addr = 0;
+ u8 ipver;
- if (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP)
- {
- ia = pool_elt_at_index(lm->if_address_pool, adj->if_address_index);
- if (ip_addr_version(dst) == IP4)
- {
- l4 = ip_interface_address_get_address (lm, ia);
- }
- else
- {
- l6 = ip_interface_address_get_address (lm, ia);
- }
- }
- else if (adj->lookup_next_index == IP_LOOKUP_NEXT_REWRITE)
- {
- /* find sw_if_index in rewrite header */
- u32 sw_if_index = adj->rewrite_header.sw_if_index;
+ ASSERT(result != 0);
- /* find suitable address */
- if (ip_addr_version(dst) == IP4)
- {
- /* find the first ip address */
- foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
- sw_if_index, 1 /* unnumbered */,
- ({
- l4 = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
- break;
- }));
- }
- else
- {
- /* find the first ip address */
- foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
- sw_if_index, 1 /* unnumbered */,
- ({
- l6 = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
- break;
- }));
- }
- }
+ ipver = ip_addr_version(dst);
+
+ lm = (ipver == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
+ si = ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
- if (l4)
- ip_address_set (result, l4, IP4);
- else if (l6)
- ip_address_set (result, l6, IP6);
+ if ((u32) ~0 == si)
+ return 0;
+
+ /* find the first ip address */
+ addr = ip_interface_get_first_address (lm, si, ipver);
+ if (0 == addr)
+ return 0;
+
+ ip_address_set (result, addr, ipver);
+ return 1;
}
-void
-get_mr_and_local_iface_ip (lisp_cp_main_t *lcm, ip_address_t * mr_ip,
+int
+get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
ip_address_t * sloc)
{
ip_address_t * mrit;
if (vec_len(lcm->map_resolvers) == 0)
{
clib_warning("No map-resolver configured");
- return;
+ return 0;
}
/* find the first mr ip we have a route to and the ip of the
* iface that has a route to it */
vec_foreach(mrit, lcm->map_resolvers)
{
- get_first_local_ip_for_dst (lcm, mrit, sloc);
- if (0 != sloc) {
+ if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, mrit, sloc)) {
ip_address_copy(mr_ip, mrit);
- return;
+ return 1;
}
}
clib_warning("Can't find map-resolver and local interface ip!");
- return;
+ return 0;
}
static gid_address_t *
build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
{
- ip4_address_t * l4;
- ip6_address_t * l6;
+ void * addr;
u32 i;
locator_t * loc;
u32 * loc_indexp;
loc_indexp = vec_elt_at_index(loc_set->locator_indices, i);
loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
- ip_addr_version(rloc) = IP4;
/* Add ipv4 locators first TODO sort them */
foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
loc->sw_if_index, 1 /* unnumbered */,
({
- l4 = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
- ip_addr_v4 (rloc) = l4[0];
+ addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
+ ip_address_set (rloc, addr, IP4);
ip_prefix_len (ippref) = 32;
vec_add1 (rlocs, gid[0]);
}));
- ip_addr_version(rloc) = IP6;
/* Add ipv6 locators */
foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
loc->sw_if_index, 1 /* unnumbered */,
({
- l6 = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
- ip_addr_v6 (rloc) = l6[0];
+ addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
+ ip_address_set (rloc, addr, IP6);
ip_prefix_len (ippref) = 128;
vec_add1 (rlocs, gid[0]);
}));
bi_res[0] = bi;
- if (rlocs)
- vec_free(rlocs);
+ vec_free(rlocs);
return b;
}
loc_set = pool_elt_at_index (lcm->locator_set_pool, map->locator_set_index);
- /* get local iface ip to use in map-request XXX fib 0 for now*/
- get_mr_and_local_iface_ip (lcm, &mr_ip, &sloc);
+ /* get local iface ip to use in map-request */
+ if (0 == get_mr_and_local_iface_ip (lcm, &mr_ip, &sloc))
+ return;
/* build the encapsulated map request */
b = build_encapsulated_map_request (vm, lcm, seid, deid, loc_set, &mr_ip,
return s;
}
-ip_interface_address_t *
-ip_interface_get_first_interface_address (ip_lookup_main_t *lm, u32 sw_if_index,
- u8 loop)
-{
- vnet_main_t *vnm = vnet_get_main ();
- vnet_sw_interface_t * swif = vnet_get_sw_interface (vnm, sw_if_index);
- if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
- sw_if_index = swif->unnumbered_sw_if_index;
- u32 ia =
- (vec_len((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ?
- vec_elt((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) :
- (u32) ~0;
- return pool_elt_at_index((lm)->if_address_pool, ia);
-}
-
-int
-ip_interface_get_first_ip_addres (lisp_cp_main_t * lcm, u32 sw_if_index,
- u8 version, ip_address_t * addr)
-{
- if (version == IP4)
- {
- ip4_address_t * l4;
- ip_lookup_main_t * lm = &lcm->im4->lookup_main;
- ip_interface_address_t * ia = ip_interface_get_first_interface_address (
- lm, sw_if_index, 1 /* unnumbered */);
-
- if (!ia)
- return 0;
-
- l4 = ip_interface_address_get_address (lm, ia);
-
- if (!l4)
- return 0;
-
- ip_addr_v4(addr) = *l4;
- ip_addr_version(addr) = IP4;
- }
- else
- {
- ip6_address_t * l6;
- ip_lookup_main_t * lm = &lcm->im6->lookup_main;
- ip_interface_address_t * ia = ip_interface_get_first_interface_address (
- lm, sw_if_index, 1 /* unnumbered */);
- if (!ia)
- return 0;
-
- l6 = ip_interface_address_get_address (lm, ia);
- if (!l6)
- return 0;
-
- ip_addr_v6(addr) = *l6;
- ip_addr_version(addr) = IP6;
- }
- return 1;
-}
-
static void
del_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index,
u32 dst_map_index)
get_locator_pair (lisp_cp_main_t* lcm, mapping_t * lcl_map, mapping_t * rmt_map,
ip_address_t * lcl_loc, ip_address_t * rmt_loc)
{
- u32 i, rv, minp = ~0, limitp = 0, li, check_index = 0, done = 0, esi;
+ u32 i, minp = ~0, limitp = 0, li, check_index = 0, done = 0, esi;
locator_set_t * rmt_ls, * lcl_ls;
ip_address_t _lcl, * lcl = &_lcl;
locator_t * l, * rmt = 0;
/* check if a local locator with a route to remote locator exists */
if (rmt != 0)
{
- esi = get_egress_iface_for_dst (lcm, &gid_address_ip(&rmt->address));
+ esi = ip_fib_get_egress_iface_for_dst (
+ lcm, &gid_address_ip(&rmt->address));
if ((u32) ~0 == esi)
continue;
/* found local locator */
if (sl->sw_if_index == esi)
{
- rv = ip_interface_get_first_ip_addres (lcm, sl->sw_if_index,
- gid_address_ip_version(&rmt->address), lcl);
-
- if (!rv)
+ if (0 == ip_interface_get_first_ip_address (lcm,
+ sl->sw_if_index,
+ gid_address_ip_version(&rmt->address), lcl))
continue;
ip_address_copy(rmt_loc, &gid_address_ip(&rmt->address));
Code Review / vpp.git / commitdiff