diff options
Diffstat (limited to 'bgpd/bgp_open_state.c')
| -rw-r--r-- | bgpd/bgp_open_state.c | 72 |
1 files changed, 66 insertions, 6 deletions
diff --git a/bgpd/bgp_open_state.c b/bgpd/bgp_open_state.c index 4c44bbd5..55d3b345 100644 --- a/bgpd/bgp_open_state.c +++ b/bgpd/bgp_open_state.c @@ -46,12 +46,19 @@ bgp_open_state_init_new(bgp_open_state state) else memset(state, 0, sizeof(struct bgp_open_state)) ; + vector_init_new(&state->unknowns, 0) ; + return state ; } bgp_open_state bgp_open_state_free(bgp_open_state state) { + bgp_cap_unknown unknown ; + + while ((unknown = vector_ream_keep(&state->unknowns)) != NULL) + XFREE(MTYPE_TMP, unknown) ; + if (state != NULL) XFREE(MTYPE_BGP_OPEN_STATE, state) ; return NULL ; @@ -87,8 +94,10 @@ bgp_peer_open_state_init_new(bgp_open_state state, bgp_peer peer) /* Set our bgpd_id */ state->bgp_id = peer->local_id ; - /* TODO: can_capability? */ - state->can_capability = 0; + /* Do not send capability. */ /* TODO: can_capability? */ + state->can_capability = + CHECK_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN) + && (! CHECK_FLAG(peer->flags, PEER_FLAG_DONT_CAPABILITY) ) ; /* Announce self as AS4 speaker if required */ state->can_as4 = ((peer->cap & PEER_CAP_AS4_ADV) != 0) ; @@ -122,11 +131,14 @@ bgp_peer_open_state_init_new(bgp_open_state state, bgp_peer peer) ? (bgp_cap_form_old | bgp_cap_form_new) : bgp_cap_form_none ; + /* Dynamic Capabilities TODO: check requirement */ + state->can_dynamic = ( CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_CAPABILITY) + != 0 ) ; + /* Graceful restart capability */ - /* TODO: check that support graceful restart for all supported AFI/SAFI */ if (bgp_flag_check(peer->bgp, BGP_FLAG_GRACEFUL_RESTART)) { - state->can_g_restart = state->can_mp_ext ; + state->can_g_restart = 1 ; state->restart_time = peer->bgp->restart_time ; } else @@ -136,12 +148,60 @@ bgp_peer_open_state_init_new(bgp_open_state state, bgp_peer peer) } ; /* TODO: check not restarting and not preserving forwarding state (?) */ - state->can_nsf = 0 ; - state->restarting = 0 ; + state->can_preserve = 0 ; /* cannot preserve forwarding */ + state->has_preserved = 0 ; /* has not preserved forwarding */ + state->restarting = 0 ; /* is not restarting */ return state; } +/*============================================================================== + * Unknown capabilities handling. + * + */ + +/*------------------------------------------------------------------------------ + * Add given unknown capability and its value to the given open_state. + */ +extern void +bgp_open_state_unknown_add(bgp_open_state state, uint8_t code, + void* value, bgp_size_t length) +{ + bgp_cap_unknown unknown ; + + unknown = XCALLOC(MTYPE_TMP, sizeof(struct bgp_cap_unknown) + length) ; + + unknown->code = code ; + unknown->length = length ; + + if (length != 0) + memcpy(unknown->value, value, length) ; + + vector_push_item(&state->unknowns, unknown) ; +} ; + +/*------------------------------------------------------------------------------ + * Get count of number of unknown capabilities in given open_state. + */ +extern void +bgp_open_state_unknown_count(bgp_open_state state) +{ + return vector_end(&state->unknowns) ; +} ; + +/*------------------------------------------------------------------------------ + * Get n'th unknown capability -- if exists. + */ +extern bgp_cap_unknown +bgp_open_state_unknown_cap(bgp_open_state state, unsigned index) +{ + return vector_get_item(&state->unknowns, index) ; +} ; + +/*============================================================================== + * + */ + /* Received an open, update the peer's state */ void bgp_peer_open_state_receive(bgp_peer peer) |