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author | hasso <hasso> | 2005-09-26 20:15:36 +0200 |
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committer | hasso <hasso> | 2005-09-26 20:15:36 +0200 |
commit | 82a8428c84df1b1e7a1be5a5114a5d9a6f2bc2c4 (patch) | |
tree | 0a1c15480d52b36cb9144add9816849014881fb3 | |
parent | * isis_lsp.c: Put correct metric info into TE TLV's. Wide metric is (diff) | |
download | frr-82a8428c84df1b1e7a1be5a5114a5d9a6f2bc2c4.tar.xz frr-82a8428c84df1b1e7a1be5a5114a5d9a6f2bc2c4.zip |
* isis_spf.[ch]: Added TE TLVs to the SPF process. It seems to work
mostly, but needs certainly much more testing, especially transition
situation.
-rw-r--r-- | isisd/ChangeLog | 6 | ||||
-rw-r--r-- | isisd/isis_spf.c | 127 | ||||
-rw-r--r-- | isisd/isis_spf.h | 5 |
3 files changed, 107 insertions, 31 deletions
diff --git a/isisd/ChangeLog b/isisd/ChangeLog index e3fe62570..7f3cd9daf 100644 --- a/isisd/ChangeLog +++ b/isisd/ChangeLog @@ -1,5 +1,11 @@ 2005-09-26 Hasso Tepper <hasso at quagga.net> + * isis_spf.[ch]: Added TE TLVs to the SPF process. It seems to work + mostly, but needs certainly much more testing, especially transition + situation. + +2005-09-26 Hasso Tepper <hasso at quagga.net> + * isis_lsp.c: Put correct metric info into TE TLV's. Wide metric is used only if only wide metric style (extended TLV's) is in use. diff --git a/isisd/isis_spf.c b/isisd/isis_spf.c index 1a5a2db00..ac4c71f3f 100644 --- a/isisd/isis_spf.c +++ b/isisd/isis_spf.c @@ -124,9 +124,15 @@ vtype2string (enum vertextype vtype) case VTYPE_PSEUDO_IS: return "pseudo_IS"; break; + case VTYPE_PSEUDO_TE_IS: + return "pseudo_TE-IS"; + break; case VTYPE_NONPSEUDO_IS: return "IS"; break; + case VTYPE_NONPSEUDO_TE_IS: + return "TE-IS"; + break; case VTYPE_ES: return "ES"; break; @@ -136,6 +142,9 @@ vtype2string (enum vertextype vtype) case VTYPE_IPREACH_EXTERNAL: return "IP external"; break; + case VTYPE_IPREACH_TE: + return "IP TE"; + break; #ifdef HAVE_IPV6 case VTYPE_IP6REACH_INTERNAL: return "IP6 internal"; @@ -156,14 +165,17 @@ vid2string (struct isis_vertex *vertex, u_char * buff) switch (vertex->type) { case VTYPE_PSEUDO_IS: + case VTYPE_PSEUDO_TE_IS: return rawlspid_print (vertex->N.id); break; case VTYPE_NONPSEUDO_IS: + case VTYPE_NONPSEUDO_TE_IS: case VTYPE_ES: return sysid_print (vertex->N.id); break; case VTYPE_IPREACH_INTERNAL: case VTYPE_IPREACH_EXTERNAL: + case VTYPE_IPREACH_TE: #ifdef HAVE_IPV6 case VTYPE_IP6REACH_INTERNAL: case VTYPE_IP6REACH_EXTERNAL: @@ -267,13 +279,16 @@ isis_vertex_new (void *id, enum vertextype vtype) { case VTYPE_ES: case VTYPE_NONPSEUDO_IS: + case VTYPE_NONPSEUDO_TE_IS: memcpy (vertex->N.id, (u_char *) id, ISIS_SYS_ID_LEN); break; case VTYPE_PSEUDO_IS: + case VTYPE_PSEUDO_TE_IS: memcpy (vertex->N.id, (u_char *) id, ISIS_SYS_ID_LEN + 1); break; case VTYPE_IPREACH_INTERNAL: case VTYPE_IPREACH_EXTERNAL: + case VTYPE_IPREACH_TE: #ifdef HAVE_IPV6 case VTYPE_IP6REACH_INTERNAL: case VTYPE_IP6REACH_EXTERNAL: @@ -312,7 +327,11 @@ isis_spf_add_self (struct isis_spftree *spftree, struct isis_area *area, if (lsp == NULL) zlog_warn ("ISIS-Spf: could not find own l%d LSP!", level); - vertex = isis_vertex_new (isis->sysid, VTYPE_NONPSEUDO_IS); + if (!area->oldmetric) + vertex = isis_vertex_new (isis->sysid, VTYPE_NONPSEUDO_TE_IS); + else + vertex = isis_vertex_new (isis->sysid, VTYPE_NONPSEUDO_IS); + vertex->lsp = lsp; listnode_add (spftree->paths, vertex); @@ -341,15 +360,18 @@ isis_find_vertex (struct list *list, void *id, enum vertextype vtype) { case VTYPE_ES: case VTYPE_NONPSEUDO_IS: + case VTYPE_NONPSEUDO_TE_IS: if (memcmp ((u_char *) id, vertex->N.id, ISIS_SYS_ID_LEN) == 0) return vertex; break; case VTYPE_PSEUDO_IS: + case VTYPE_PSEUDO_TE_IS: if (memcmp ((u_char *) id, vertex->N.id, ISIS_SYS_ID_LEN + 1) == 0) return vertex; break; case VTYPE_IPREACH_INTERNAL: case VTYPE_IPREACH_EXTERNAL: + case VTYPE_IPREACH_TE: #ifdef HAVE_IPV6 case VTYPE_IP6REACH_INTERNAL: case VTYPE_IP6REACH_EXTERNAL: @@ -536,7 +558,9 @@ isis_spf_process_lsp (struct isis_spftree *spftree, struct isis_lsp *lsp, struct listnode *node, *fragnode = NULL; u_int16_t dist; struct is_neigh *is_neigh; + struct te_is_neigh *te_is_neigh; struct ipv4_reachability *ipreach; + struct te_ipv4_reachability *te_ipv4_reach; enum vertextype vtype; struct prefix prefix; #ifdef HAVE_IPV6 @@ -574,6 +598,22 @@ lspfragloop: depth + 1, lsp->adj, family); } } + if (lsp->tlv_data.te_is_neighs) + { + for (ALL_LIST_ELEMENTS_RO (lsp->tlv_data.te_is_neighs, node, + te_is_neigh)) + { + uint32_t metric; + if (!memcmp (te_is_neigh->neigh_id, isis->sysid, ISIS_SYS_ID_LEN)) + continue; + memcpy (&metric, te_is_neigh->te_metric, 3); + dist = cost + ntohl (metric << 8); + vtype = LSP_PSEUDO_ID (te_is_neigh->neigh_id) ? VTYPE_PSEUDO_TE_IS + : VTYPE_NONPSEUDO_TE_IS; + process_N (spftree, vtype, (void *) te_is_neigh->neigh_id, dist, + depth + 1, lsp->adj, family); + } + } if (family == AF_INET && lsp->tlv_data.ipv4_int_reachs) { prefix.family = AF_INET; @@ -603,6 +643,21 @@ lspfragloop: lsp->adj, family); } } + if (family == AF_INET && lsp->tlv_data.te_ipv4_reachs) + { + prefix.family = AF_INET; + for (ALL_LIST_ELEMENTS_RO (lsp->tlv_data.te_ipv4_reachs, + node, te_ipv4_reach)) + { + dist = cost + ntohl (te_ipv4_reach->te_metric); + vtype = VTYPE_IPREACH_TE; + prefix.u.prefix4 = newprefix2inaddr (&te_ipv4_reach->prefix_start, + te_ipv4_reach->control); + prefix.prefixlen = (te_ipv4_reach->control & 0x3F); + process_N (spftree, vtype, (void *) &prefix, dist, depth + 1, + lsp->adj, family); + } + } #ifdef HAVE_IPV6 if (family == AF_INET6 && lsp->tlv_data.ipv6_reachs) { @@ -644,6 +699,7 @@ isis_spf_process_pseudo_lsp (struct isis_spftree *spftree, { struct listnode *node, *nnode, *fragnode = NULL; struct is_neigh *is_neigh; + struct te_is_neigh *te_is_neigh; enum vertextype vtype; pseudofragloop: @@ -655,23 +711,42 @@ pseudofragloop: return ISIS_WARNING; } - for (ALL_LIST_ELEMENTS (lsp->tlv_data.is_neighs, node, nnode, is_neigh)) - { - vtype = LSP_PSEUDO_ID (is_neigh->neigh_id) ? VTYPE_PSEUDO_IS - : VTYPE_NONPSEUDO_IS; - /* Two way connectivity */ - if (!memcmp (is_neigh->neigh_id, isis->sysid, ISIS_SYS_ID_LEN)) - continue; - if (isis_find_vertex - (spftree->tents, (void *) is_neigh->neigh_id, vtype) == NULL - && isis_find_vertex (spftree->paths, (void *) is_neigh->neigh_id, + if (lsp->tlv_data.is_neighs) + for (ALL_LIST_ELEMENTS (lsp->tlv_data.is_neighs, node, nnode, is_neigh)) + { + vtype = LSP_PSEUDO_ID (is_neigh->neigh_id) ? VTYPE_PSEUDO_IS + : VTYPE_NONPSEUDO_IS; + /* Two way connectivity */ + if (!memcmp (is_neigh->neigh_id, isis->sysid, ISIS_SYS_ID_LEN)) + continue; + if (isis_find_vertex + (spftree->tents, (void *) is_neigh->neigh_id, vtype) == NULL + && isis_find_vertex (spftree->paths, (void *) is_neigh->neigh_id, vtype) == NULL) - { - /* C.2.5 i) */ - isis_spf_add2tent (spftree, vtype, is_neigh->neigh_id, lsp->adj, + { + /* C.2.5 i) */ + isis_spf_add2tent (spftree, vtype, is_neigh->neigh_id, lsp->adj, cost, depth, family); - } - } + } + } + if (lsp->tlv_data.te_is_neighs) + for (ALL_LIST_ELEMENTS (lsp->tlv_data.te_is_neighs, node, nnode, te_is_neigh)) + { + vtype = LSP_PSEUDO_ID (te_is_neigh->neigh_id) ? VTYPE_PSEUDO_TE_IS + : VTYPE_NONPSEUDO_TE_IS; + /* Two way connectivity */ + if (!memcmp (te_is_neigh->neigh_id, isis->sysid, ISIS_SYS_ID_LEN)) + continue; + if (isis_find_vertex + (spftree->tents, (void *) te_is_neigh->neigh_id, vtype) == NULL + && isis_find_vertex (spftree->paths, (void *) te_is_neigh->neigh_id, + vtype) == NULL) + { + /* C.2.5 i) */ + isis_spf_add2tent (spftree, vtype, te_is_neigh->neigh_id, lsp->adj, + cost, depth, family); + } + } if (fragnode == NULL) fragnode = listhead (lsp->lspu.frags); @@ -777,9 +852,7 @@ isis_spf_preload_tent (struct isis_spftree *spftree, { case ISIS_SYSTYPE_ES: isis_spf_add_local (spftree, VTYPE_ES, adj->sysid, adj, - circuit->metrics[level - - 1].metric_default, - family); + circuit->te_metric[level - 1], family); break; case ISIS_SYSTYPE_IS: case ISIS_SYSTYPE_L1_IS: @@ -787,9 +860,7 @@ isis_spf_preload_tent (struct isis_spftree *spftree, vertex = isis_spf_add_local (spftree, VTYPE_NONPSEUDO_IS, adj->sysid, adj, - circuit->metrics[level - - 1].metric_default, - family); + circuit->te_metric[level - 1], family); memcpy (lsp_id, adj->sysid, ISIS_SYS_ID_LEN); LSP_PSEUDO_ID (lsp_id) = 0; LSP_FRAGMENT (lsp_id) = 0; @@ -827,9 +898,8 @@ isis_spf_preload_tent (struct isis_spftree *spftree, } else { - isis_spf_process_pseudo_lsp - (spftree, lsp, circuit->metrics[level - 1].metric_default, 0, - family); + isis_spf_process_pseudo_lsp (spftree, lsp, + circuit->te_metric[level - 1], 0, family); } } @@ -842,17 +912,14 @@ isis_spf_preload_tent (struct isis_spftree *spftree, { case ISIS_SYSTYPE_ES: isis_spf_add_local (spftree, VTYPE_ES, adj->sysid, adj, - circuit->metrics[level - 1].metric_default, - family); + circuit->te_metric[level - 1], family); break; case ISIS_SYSTYPE_IS: case ISIS_SYSTYPE_L1_IS: case ISIS_SYSTYPE_L2_IS: if (speaks (&adj->nlpids, family)) isis_spf_add_local (spftree, VTYPE_NONPSEUDO_IS, adj->sysid, - adj, - circuit->metrics[level - - 1].metric_default, + adj, circuit->te_metric[level - 1], family); break; case ISIS_SYSTYPE_UNKNOWN: diff --git a/isisd/isis_spf.h b/isisd/isis_spf.h index 8912add35..6bdab2da6 100644 --- a/isisd/isis_spf.h +++ b/isisd/isis_spf.h @@ -27,10 +27,13 @@ enum vertextype { VTYPE_PSEUDO_IS = 1, + VTYPE_PSEUDO_TE_IS, VTYPE_NONPSEUDO_IS, + VTYPE_NONPSEUDO_TE_IS, VTYPE_ES, VTYPE_IPREACH_INTERNAL, - VTYPE_IPREACH_EXTERNAL + VTYPE_IPREACH_EXTERNAL, + VTYPE_IPREACH_TE #ifdef HAVE_IPV6 , VTYPE_IP6REACH_INTERNAL, |