Add API call to send Router Solicitation messages.
Save info from incoming Router Advertisement messages and notify listeners.
Change-Id: Ie518b5492231e03291bd4c4280be4727bfecab46
Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
_(oam_events) \
_(bfd_events) \
_(wc_ip6_nd_events) \
-_(wc_ip4_arp_events)
+_(wc_ip4_arp_events) \
+_(ip6_ra_events)
typedef struct
{
called through a shared memory interface.
*/
-option version = "1.1.0";
+option version = "1.2.0";
import "vnet/fib/fib_types.api";
/** \brief Add / del table request
u32 context;
};
+/** \brief Start / stop sending router solicitation
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param irt - initial retransmission time
+ @param mrt - maximum retransmission time
+ @param mrc - maximum retransmission count
+ @param mrd - maximum retransmission duration
+ @param sw_if_index - software interface index of interface
+ for sending router solicitation
+ @param stop - if non-zero then stop sending router solicitation,
+ otherwise start sending router solicitation
+*/
+autoreply define ip6nd_send_router_solicitation
+{
+ u32 client_index;
+ u32 context;
+ u32 irt;
+ u32 mrt;
+ u32 mrc;
+ u32 mrd;
+ u32 sw_if_index;
+ u8 stop;
+};
+
/** \brief IPv6 interface enable / disable request
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
u8 mac_ip;
};
+service {
+ rpc want_ip6_ra_events returns want_ip6_ra_events_reply
+ events ip6_ra_event;
+};
+
+/** \brief Register for ip6 router advertisement events
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param enable_disable - 1 => register for events, 0 => cancel registration
+ @param pid - sender's pid
+*/
+autoreply define want_ip6_ra_events
+{
+ u32 client_index;
+ u32 context;
+ u8 enable_disable;
+ u32 pid;
+};
+
+/** \brief Struct representing RA prefix info
+ @param dst_address - RA prefix info destination address
+ @param dst_address_length - RA prefix info destination address length
+ @param flags - RA prefix info flags
+ @param valid_time - RA prefix info valid time
+ @param preferred_time - RA prefix info preferred time
+*/
+typeonly define ip6_ra_prefix_info
+{
+ u8 dst_address[16];
+ u8 dst_address_length;
+ u8 flags;
+ u32 valid_time;
+ u32 preferred_time;
+};
+
+/** \brief Tell client about a router advertisement event
+ @param client_index - opaque cookie to identify the sender
+ @param pid - client pid registered to receive notification
+ @param current_hop_limit - RA current hop limit
+ @param flags - RA flags
+ @param router_lifetime_in_sec - RA lifetime in seconds
+ @param neighbor_reachable_time_in_msec - RA neighbor reachable time in msec
+ @param time_in_msec_between_retransmitted_neighbor_solicitations -
+ time in msec between retransmitted neighbor solicitations
+ @param n_prefixes -
+ @param prefixes -
+*/
+define ip6_ra_event
+{
+ u32 client_index;
+ u32 pid;
+ u32 sw_if_index;
+ u8 router_address[16];
+ u8 current_hop_limit;
+ u8 flags;
+ u16 router_lifetime_in_sec;
+ u32 neighbor_reachable_time_in_msec;
+ u32 time_in_msec_between_retransmitted_neighbor_solicitations;
+ u32 n_prefixes;
+ vl_api_ip6_ra_prefix_info_t prefixes[n_prefixes];
+};
+
service {
rpc want_ip6_nd_events returns want_ip6_nd_events_reply
events ip6_nd_event;
/* Link local address to use (defaults to underlying physical for logical interfaces */
ip6_address_t link_local_address;
+
+ /* router solicitations sending state */
+ u8 keep_sending_rs; /* when true then next fields are valid */
+ icmp6_send_router_solicitation_params_t params;
+ f64 sleep_interval;
+ f64 due_time;
+ u32 n_left;
+ f64 start_time;
+ vlib_buffer_t *buffer;
} ip6_radv_t;
typedef struct
/* Wildcard nd report publisher */
uword wc_ip6_nd_publisher_node;
uword wc_ip6_nd_publisher_et;
+
+ /* Router advertisement report publisher */
+ uword ip6_ra_publisher_node;
+ uword ip6_ra_publisher_et;
} ip6_neighbor_main_t;
/* ipv6 neighbor discovery - timer/event types */
static ip6_address_t ip6a_zero; /* ip6 address 0 */
static void wc_nd_signal_report (wc_nd_report_t * r);
+static void ra_signal_report (ra_report_t * r);
/**
* @brief publish wildcard arp event
nm->wc_ip6_nd_publisher_et = event_type;
}
+static int
+ra_publish (ra_report_t * r)
+{
+ void vl_api_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
+ vl_api_rpc_call_main_thread (ra_signal_report, (u8 *) r, sizeof *r);
+ return 0;
+}
+
+static void
+ra_signal_report (ra_report_t * r)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ uword ni = nm->ip6_ra_publisher_node;
+ uword et = nm->ip6_ra_publisher_et;
+
+ if (ni == (uword) ~ 0)
+ return;
+ ra_report_t *q = vlib_process_signal_event_data (vm, ni, et, 1, sizeof *q);
+
+ *q = *r;
+}
+
+void
+ra_set_publisher_node (uword node_index, uword event_type)
+{
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ nm->ip6_ra_publisher_node = node_index;
+ nm->ip6_ra_publisher_et = event_type;
+}
+
static u8 *
format_ip6_neighbor_ip6_entry (u8 * s, va_list * va)
{
if (error0 == ICMP6_ERROR_NONE)
{
+ radv_info->keep_sending_rs = 0;
+
+ ra_report_t r;
+
+ r.sw_if_index = sw_if_index0;
+ memcpy (r.router_address, &ip0->src_address, 16);
+ r.current_hop_limit = h0->current_hop_limit;
+ r.flags = h0->flags;
+ r.router_lifetime_in_sec =
+ clib_net_to_host_u16 (h0->router_lifetime_in_sec);
+ r.neighbor_reachable_time_in_msec =
+ clib_net_to_host_u32
+ (h0->neighbor_reachable_time_in_msec);
+ r.time_in_msec_between_retransmitted_neighbor_solicitations = clib_net_to_host_u32 (h0->time_in_msec_between_retransmitted_neighbor_solicitations);
+ r.prefixes = 0;
+
/* validate advertised information */
if ((h0->current_hop_limit && radv_info->curr_hop_limit)
&& (h0->current_hop_limit !=
switch (option_type)
{
+ case ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address:
+ {
+ icmp6_neighbor_discovery_ethernet_link_layer_address_option_t
+ * h =
+ (icmp6_neighbor_discovery_ethernet_link_layer_address_option_t
+ *) (o0);
+
+ if (opt_len < sizeof (*h))
+ break;
+
+ memcpy (r.slla, h->ethernet_address, 6);
+ }
+ break;
+
case ICMP6_NEIGHBOR_DISCOVERY_OPTION_mtu:
{
icmp6_neighbor_discovery_mtu_option_t *h =
if (opt_len < sizeof (*h))
break;
+ r.mtu = clib_net_to_host_u32 (h->mtu);
+
if ((h->mtu && radv_info->adv_link_mtu) &&
(h->mtu !=
clib_host_to_net_u32
if (opt_len < sizeof (*h))
break;
+ vec_validate (r.prefixes,
+ vec_len (r.prefixes));
+ ra_report_prefix_info_t *prefix =
+ vec_elt_at_index (r.prefixes,
+ vec_len (r.prefixes) - 1);
+
preferred =
clib_net_to_host_u32 (h->preferred_time);
valid = clib_net_to_host_u32 (h->valid_time);
+ prefix->preferred_time = preferred;
+ prefix->valid_time = valid;
+ prefix->flags = h->flags & 0xc0;
+ prefix->dst_address_length =
+ h->dst_address_length;
+ prefix->dst_address = h->dst_address;
+
/* look for matching prefix - if we our advertising it, it better be consistant */
/* *INDENT-OFF* */
pool_foreach (pr_info, radv_info->adv_prefixes_pool,
break;
}
}
+ ra_publish (&r);
}
}
}
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- /* Account for router advertisements sent. */
+ /* Account for router advertisements received. */
vlib_error_count (vm, error_node->node_index,
ICMP6_ERROR_ROUTER_ADVERTISEMENTS_RX,
n_advertisements_rcvd);
return frame->n_vectors;
}
+static inline f64
+random_f64_from_to (f64 from, f64 to)
+{
+ static u32 seed = 0;
+ static u8 seed_set = 0;
+ if (!seed_set)
+ {
+ seed = random_default_seed ();
+ seed_set = 1;
+ }
+ return random_f64 (&seed) * (to - from) + from;
+}
+
+static inline u8
+get_mac_address (u32 sw_if_index, u8 * address)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_hw_interface_t *hw_if = vnet_get_sup_hw_interface (vnm, sw_if_index);
+ if (!hw_if->hw_address)
+ return 1;
+ clib_memcpy (address, hw_if->hw_address, 6);
+ return 0;
+}
+
+static inline vlib_buffer_t *
+create_buffer_for_rs (vlib_main_t * vm, ip6_radv_t * radv_info)
+{
+ u32 bi0;
+ vlib_buffer_t *p0;
+ vlib_buffer_free_list_t *fl;
+ icmp6_router_solicitation_header_t *rh;
+ u16 payload_length;
+ int bogus_length;
+ u32 sw_if_index;
+
+ sw_if_index = radv_info->sw_if_index;
+
+ if (vlib_buffer_alloc (vm, &bi0, 1) != 1)
+ {
+ clib_warning ("buffer allocation failure");
+ return 0;
+ }
+
+ p0 = vlib_get_buffer (vm, bi0);
+ fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
+ vlib_buffer_init_for_free_list (p0, fl);
+ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (p0);
+ p0->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
+
+ vnet_buffer (p0)->sw_if_index[VLIB_RX] = sw_if_index;
+ vnet_buffer (p0)->sw_if_index[VLIB_TX] = sw_if_index;
+
+ vnet_buffer (p0)->ip.adj_index[VLIB_TX] = radv_info->mcast_adj_index;
+
+ rh = vlib_buffer_get_current (p0);
+ p0->current_length = sizeof (*rh);
+
+ rh->neighbor.icmp.type = ICMP6_router_solicitation;
+ rh->neighbor.icmp.code = 0;
+ rh->neighbor.icmp.checksum = 0;
+ rh->neighbor.reserved_must_be_zero = 0;
+
+ rh->link_layer_option.header.type =
+ ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address;
+ if (0 != get_mac_address (sw_if_index,
+ rh->link_layer_option.ethernet_address))
+ {
+ clib_warning ("interface with sw_if_index %u has no mac address",
+ sw_if_index);
+ vlib_buffer_free (vm, &bi0, 1);
+ return 0;
+ }
+ rh->link_layer_option.header.n_data_u64s = 1;
+
+ payload_length = sizeof (rh->neighbor) + sizeof (u64);
+
+ rh->ip.ip_version_traffic_class_and_flow_label =
+ clib_host_to_net_u32 (0x6 << 28);
+ rh->ip.payload_length = clib_host_to_net_u16 (payload_length);
+ rh->ip.protocol = IP_PROTOCOL_ICMP6;
+ rh->ip.hop_limit = 255;
+ rh->ip.src_address = radv_info->link_local_address;
+ /* set address ff02::2 */
+ rh->ip.dst_address.as_u64[0] = clib_host_to_net_u64 (0xff02L << 48);
+ rh->ip.dst_address.as_u64[1] = clib_host_to_net_u64 (2);
+
+ rh->neighbor.icmp.checksum = ip6_tcp_udp_icmp_compute_checksum (vm, p0,
+ &rh->ip,
+ &bogus_length);
+
+ return p0;
+}
+
+static inline void
+stop_sending_rs (vlib_main_t * vm, ip6_radv_t * ra)
+{
+ u32 bi0;
+
+ ra->keep_sending_rs = 0;
+ if (ra->buffer)
+ {
+ bi0 = vlib_get_buffer_index (vm, ra->buffer);
+ vlib_buffer_free (vm, &bi0, 1);
+ ra->buffer = 0;
+ }
+}
+
+static inline bool
+check_send_rs (vlib_main_t * vm, ip6_radv_t * radv_info, f64 current_time,
+ f64 * due_time)
+{
+ vlib_buffer_t *p0;
+ vlib_frame_t *f;
+ u32 *to_next;
+ u32 next_index;
+ vlib_buffer_t *c0;
+ u32 ci0;
+
+ icmp6_send_router_solicitation_params_t *params;
+
+ if (!radv_info->keep_sending_rs)
+ return false;
+
+ params = &radv_info->params;
+
+ if (radv_info->due_time > current_time)
+ {
+ *due_time = radv_info->due_time;
+ return true;
+ }
+
+ p0 = radv_info->buffer;
+
+ next_index = ip6_rewrite_mcast_node.index;
+
+ c0 = vlib_buffer_copy (vm, p0);
+ ci0 = vlib_get_buffer_index (vm, c0);
+
+ f = vlib_get_frame_to_node (vm, next_index);
+ to_next = vlib_frame_vector_args (f);
+ to_next[0] = ci0;
+ f->n_vectors = 1;
+ vlib_put_frame_to_node (vm, next_index, f);
+
+ if (params->mrc != 0 && --radv_info->n_left == 0)
+ stop_sending_rs (vm, radv_info);
+ else
+ {
+ radv_info->sleep_interval =
+ (2 + random_f64_from_to (-0.1, 0.1)) * radv_info->sleep_interval;
+ if (radv_info->sleep_interval > params->mrt)
+ radv_info->sleep_interval =
+ (1 + random_f64_from_to (-0.1, 0.1)) * params->mrt;
+
+ radv_info->due_time = current_time + radv_info->sleep_interval;
+
+ if (params->mrd != 0
+ && current_time > radv_info->start_time + params->mrd)
+ stop_sending_rs (vm, radv_info);
+ else
+ *due_time = radv_info->due_time;
+ }
+
+ return radv_info->keep_sending_rs;
+}
+
+static uword
+send_rs_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
+ vlib_frame_t * f0)
+{
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ ip6_radv_t *radv_info;
+ uword *event_data = 0;
+ f64 sleep_time = 1e9;
+ f64 current_time;
+ f64 due_time;
+ f64 dt = 0;
+
+ while (true)
+ {
+ vlib_process_wait_for_event_or_clock (vm, sleep_time);
+ vlib_process_get_events (vm, &event_data);
+ vec_reset_length (event_data);
+
+ current_time = vlib_time_now (vm);
+ do
+ {
+ due_time = current_time + 1e9;
+ /* *INDENT-OFF* */
+ pool_foreach (radv_info, nm->if_radv_pool,
+ ({
+ if (check_send_rs (vm, radv_info, current_time, &dt)
+ && (dt < due_time))
+ due_time = dt;
+ }));
+ /* *INDENT-ON* */
+ current_time = vlib_time_now (vm);
+ }
+ while (due_time < current_time);
+
+ sleep_time = due_time - current_time;
+ }
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (send_rs_process_node) = {
+ .function = send_rs_process,
+ .type = VLIB_NODE_TYPE_PROCESS,
+ .name = "send-rs-process",
+};
+/* *INDENT-ON* */
+
+void
+icmp6_send_router_solicitation (vlib_main_t * vm, u32 sw_if_index, u8 stop,
+ icmp6_send_router_solicitation_params_t *
+ params)
+{
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ u32 rai;
+ ip6_radv_t *ra = 0;
+
+ ASSERT (~0 != sw_if_index);
+
+ rai = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
+ ra = pool_elt_at_index (nm->if_radv_pool, rai);
+
+ if (stop)
+ stop_sending_rs (vm, ra);
+ else
+ {
+ ra->keep_sending_rs = 1;
+ ra->params = *params;
+ ra->n_left = params->mrc;
+ ra->start_time = vlib_time_now (vm);
+ ra->sleep_interval = (1 + random_f64_from_to (-0.1, 0.1)) * params->irt;
+ ra->due_time = 0; /* send first packet ASAP */
+ ra->buffer = create_buffer_for_rs (vm, ra);
+ if (!ra->buffer)
+ ra->keep_sending_rs = 0;
+ else
+ vlib_process_signal_event (vm, send_rs_process_node.index, 1, 0);
+ }
+}
+
/**
* @brief Add a multicast Address to the advertised MLD set
*/
mhash_free (&a->address_to_prefix_index);
mhash_free (&a->address_to_mldp_index);
+ if (a->keep_sending_rs)
+ a->keep_sending_rs = 0;
+
pool_put (nm->if_radv_pool, a);
nm->if_radv_pool_index_by_sw_if_index[sw_if_index] = ~0;
ri = ~0;
VNET_LINK_IP6,
sw_if_index);
+ a->keep_sending_rs = 0;
+
/* add multicast groups we will always be reporting */
ip6_neighbor_add_mld_grp (a,
IP6_MULTICAST_SCOPE_link_local,
nm->wc_ip6_nd_publisher_node = (uword) ~ 0;
+ nm->ip6_ra_publisher_node = (uword) ~ 0;
+
#if 0
/* $$$$ Hack fix for today */
vec_validate_init_empty
void wc_nd_set_publisher_node (uword node_index, uword event_type);
+typedef struct
+{
+ u32 irt;
+ u32 mrt;
+ u32 mrc;
+ u32 mrd;
+} icmp6_send_router_solicitation_params_t;
+
+void icmp6_send_router_solicitation (vlib_main_t * vm, u32 sw_if_index,
+ u8 stop,
+ icmp6_send_router_solicitation_params_t *
+ params);
+
+typedef struct
+{
+ ip6_address_t dst_address;
+ u8 dst_address_length;
+ u8 flags;
+ u32 valid_time;
+ u32 preferred_time;
+} ra_report_prefix_info_t;
+
+typedef struct
+{
+ u32 sw_if_index;
+ u8 router_address[16];
+ u8 current_hop_limit;
+ u8 flags;
+ u16 router_lifetime_in_sec;
+ u32 neighbor_reachable_time_in_msec;
+ u32 time_in_msec_between_retransmitted_neighbor_solicitations;
+ u8 slla[6];
+ u32 mtu;
+ ra_report_prefix_info_t *prefixes;
+} ra_report_t;
+
+void ra_set_publisher_node (uword node_index, uword event_type);
+
#endif /* included_ip6_neighbor_h */
/*
_(SET_ARP_NEIGHBOR_LIMIT, set_arp_neighbor_limit) \
_(WANT_IP4_ARP_EVENTS, want_ip4_arp_events) \
_(WANT_IP6_ND_EVENTS, want_ip6_nd_events) \
+_(WANT_IP6_RA_EVENTS, want_ip6_ra_events) \
_(PROXY_ARP_ADD_DEL, proxy_arp_add_del) \
_(PROXY_ARP_INTFC_ENABLE_DISABLE, proxy_arp_intfc_enable_disable) \
_(RESET_FIB, reset_fib) \
_(SW_INTERFACE_IP6ND_RA_PREFIX, sw_interface_ip6nd_ra_prefix) \
_(IP6ND_PROXY_ADD_DEL, ip6nd_proxy_add_del) \
_(IP6ND_PROXY_DUMP, ip6nd_proxy_dump) \
+_(IP6ND_SEND_ROUTER_SOLICITATION, ip6nd_send_router_solicitation) \
_(SW_INTERFACE_IP6_ENABLE_DISABLE, sw_interface_ip6_enable_disable ) \
_(SW_INTERFACE_IP6_SET_LINK_LOCAL_ADDRESS, \
sw_interface_ip6_set_link_local_address) \
REPLY_MACRO (VL_API_IP6ND_PROXY_ADD_DEL_REPLY);
}
+static void
+ vl_api_ip6nd_send_router_solicitation_t_handler
+ (vl_api_ip6nd_send_router_solicitation_t * mp)
+{
+ vl_api_ip6nd_send_router_solicitation_reply_t *rmp;
+ icmp6_send_router_solicitation_params_t params;
+ vlib_main_t *vm = vlib_get_main ();
+ int rv = 0;
+
+ VALIDATE_SW_IF_INDEX (mp);
+
+ BAD_SW_IF_INDEX_LABEL;
+ REPLY_MACRO (VL_API_IP6ND_SEND_ROUTER_SOLICITATION_REPLY);
+
+ if (rv != 0)
+ return;
+
+ params.irt = ntohl (mp->irt);
+ params.mrt = ntohl (mp->mrt);
+ params.mrc = ntohl (mp->mrc);
+ params.mrd = ntohl (mp->mrd);
+
+ icmp6_send_router_solicitation (vm, ntohl (mp->sw_if_index), mp->stop,
+ ¶ms);
+}
+
static void
vl_api_sw_interface_ip6_enable_disable_t_handler
(vl_api_sw_interface_ip6_enable_disable_t * mp)
static vlib_node_registration_t wc_arp_process_node;
enum
-{ WC_ARP_REPORT, WC_ND_REPORT };
+{ WC_ARP_REPORT, WC_ND_REPORT, RA_REPORT, REPORT_MAX };
static uword
wc_arp_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
/* *INDENT-ON* */
}
}
+ else if (event_type == RA_REPORT)
+ {
+ ra_report_t *ra_events = event_data;
+ for (i = 0; i < vec_len (ra_events); i++)
+ {
+ vpe_client_registration_t *reg;
+ /* *INDENT-OFF* */
+ pool_foreach(reg, vpe_api_main.ip6_ra_events_registrations,
+ ({
+ vl_api_registration_t *vl_reg;
+ vl_reg =
+ vl_api_client_index_to_registration (reg->client_index);
+ if (vl_reg && vl_api_can_send_msg (vl_reg))
+ {
+ u32 event_size =
+ sizeof (vl_api_ip6_ra_event_t) +
+ vec_len (ra_events[i].prefixes) *
+ sizeof (vl_api_ip6_ra_prefix_info_t);
+ vl_api_ip6_ra_event_t *event =
+ vl_msg_api_alloc (event_size);
+ memset (event, 0, event_size);
+ event->_vl_msg_id = htons (VL_API_IP6_RA_EVENT);
+ event->client_index = reg->client_index;
+ event->pid = reg->client_pid;
+
+ event->sw_if_index = clib_host_to_net_u32 (ra_events[i].sw_if_index);
+
+ memcpy (event->router_address, ra_events[i].router_address, 16);
+
+ event->current_hop_limit = ra_events[i].current_hop_limit;
+ event->flags = ra_events[i].flags;
+ event->router_lifetime_in_sec =
+ clib_host_to_net_u16 (ra_events
+ [i].router_lifetime_in_sec);
+ event->neighbor_reachable_time_in_msec =
+ clib_host_to_net_u32 (ra_events
+ [i].neighbor_reachable_time_in_msec);
+ event->time_in_msec_between_retransmitted_neighbor_solicitations
+ =
+ clib_host_to_net_u32 (ra_events
+ [i].time_in_msec_between_retransmitted_neighbor_solicitations);
+
+ event->n_prefixes =
+ clib_host_to_net_u32 (vec_len (ra_events[i].prefixes));
+ vl_api_ip6_ra_prefix_info_t *prefix =
+ (typeof (prefix)) event->prefixes;
+ u32 j;
+ for (j = 0; j < vec_len (ra_events[i].prefixes); j++)
+ {
+ ra_report_prefix_info_t *info =
+ &ra_events[i].prefixes[j];
+ memcpy (prefix->dst_address, info->dst_address.as_u8,
+ 16);
+ prefix->dst_address_length = info->dst_address_length;
+ prefix->flags = info->flags;
+ prefix->valid_time =
+ clib_host_to_net_u32 (info->valid_time);
+ prefix->preferred_time =
+ clib_host_to_net_u32 (info->preferred_time);
+ prefix++;
+ }
+
+ vl_api_send_msg (vl_reg, (u8 *) event);
+ }
+ }));
+ /* *INDENT-ON* */
+ }
+ }
vlib_process_put_event_data (vm, event_data);
}
hash_unset (am->wc_ip4_arp_events_registration_hash,
mp->client_index);
if (pool_elts (am->wc_ip4_arp_events_registrations) == 0)
- wc_arp_set_publisher_node (~0, WC_ARP_REPORT);
+ wc_arp_set_publisher_node (~0, REPORT_MAX);
goto reply;
}
}
hash_unset (am->wc_ip6_nd_events_registration_hash,
mp->client_index);
if (pool_elts (am->wc_ip6_nd_events_registrations) == 0)
- wc_nd_set_publisher_node (~0, 2);
+ wc_nd_set_publisher_node (~0, REPORT_MAX);
goto reply;
}
}
REPLY_MACRO (VL_API_WANT_IP6_ND_EVENTS_REPLY);
}
+static void
+vl_api_want_ip6_ra_events_t_handler (vl_api_want_ip6_ra_events_t * mp)
+{
+ vpe_api_main_t *am = &vpe_api_main;
+ vl_api_want_ip6_ra_events_reply_t *rmp;
+ int rv = 0;
+
+ uword *p = hash_get (am->ip6_ra_events_registration_hash, mp->client_index);
+ vpe_client_registration_t *rp;
+ if (p)
+ {
+ if (mp->enable_disable)
+ {
+ clib_warning ("pid %d: already enabled...", ntohl (mp->pid));
+ rv = VNET_API_ERROR_INVALID_REGISTRATION;
+ goto reply;
+ }
+ else
+ {
+ rp = pool_elt_at_index (am->ip6_ra_events_registrations, p[0]);
+ pool_put (am->ip6_ra_events_registrations, rp);
+ hash_unset (am->ip6_ra_events_registration_hash, mp->client_index);
+ if (pool_elts (am->ip6_ra_events_registrations) == 0)
+ ra_set_publisher_node (~0, REPORT_MAX);
+ goto reply;
+ }
+ }
+ if (mp->enable_disable == 0)
+ {
+ clib_warning ("pid %d: already disabled...", ntohl (mp->pid));
+ rv = VNET_API_ERROR_INVALID_REGISTRATION;
+ goto reply;
+ }
+ pool_get (am->ip6_ra_events_registrations, rp);
+ rp->client_index = mp->client_index;
+ rp->client_pid = ntohl (mp->pid);
+ hash_set (am->ip6_ra_events_registration_hash, rp->client_index,
+ rp - am->ip6_ra_events_registrations);
+ ra_set_publisher_node (wc_arp_process_node.index, RA_REPORT);
+
+reply:
+ REPLY_MACRO (VL_API_WANT_IP6_RA_EVENTS_REPLY);
+}
+
static void
vl_api_proxy_arp_add_del_t_handler (vl_api_proxy_arp_add_del_t * mp)
{
#!/usr/bin/env python
import unittest
-from socket import AF_INET6
+import socket
from framework import VppTestCase, VppTestRunner
+from util import ppp, ip6_normalize
from vpp_sub_interface import VppSubInterface, VppDot1QSubint
from vpp_pg_interface import is_ipv6_misc
from vpp_ip_route import VppIpRoute, VppRoutePath, find_route, VppIpMRoute, \
ICMPv6NDOptMTU, ICMPv6NDOptSrcLLAddr, ICMPv6NDOptPrefixInfo, \
ICMPv6ND_NA, ICMPv6NDOptDstLLAddr, ICMPv6DestUnreach, icmp6types, \
ICMPv6TimeExceeded
-
-from util import ppp
from scapy.utils6 import in6_getnsma, in6_getnsmac, in6_ptop, in6_islladdr, \
in6_mactoifaceid, in6_ismaddr
from scapy.utils import inet_pton, inet_ntop
from scapy.contrib.mpls import MPLS
+AF_INET6 = socket.AF_INET6
+
+
def mk_ll_addr(mac):
euid = in6_mactoifaceid(mac)
addr = "fe80::" + euid
self.pg0.ip6_ra_config(no=1, suppress=1, send_unicast=0)
+class TestIPv6RD(TestIPv6ND):
+ """ IPv6 Router Discovery Test Case """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPv6RD, cls).setUpClass()
+
+ def setUp(self):
+ super(TestIPv6RD, self).setUp()
+
+ # create 2 pg interfaces
+ self.create_pg_interfaces(range(2))
+
+ self.interfaces = list(self.pg_interfaces)
+
+ # setup all interfaces
+ for i in self.interfaces:
+ i.admin_up()
+ i.config_ip6()
+
+ def tearDown(self):
+ super(TestIPv6RD, self).tearDown()
+
+ def test_rd_send_router_solicitation(self):
+ """ Verify router solicitation packets """
+
+ count = 2
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.vapi.ip6nd_send_router_solicitation(self.pg1.sw_if_index,
+ mrc=count)
+ rx_list = self.pg1.get_capture(count, timeout=3)
+ self.assertEqual(len(rx_list), count)
+ for packet in rx_list:
+ self.assertTrue(packet.haslayer(IPv6))
+ self.assertTrue(packet[IPv6].haslayer(ICMPv6ND_RS))
+ dst = ip6_normalize(packet[IPv6].dst)
+ dst2 = ip6_normalize("ff02::2")
+ self.assert_equal(dst, dst2)
+ src = ip6_normalize(packet[IPv6].src)
+ src2 = ip6_normalize(self.pg1.local_ip6_ll)
+ self.assert_equal(src, src2)
+ self.assertTrue(packet[ICMPv6ND_RS].haslayer(ICMPv6NDOptSrcLLAddr))
+ self.assert_equal(packet[ICMPv6NDOptSrcLLAddr].lladdr,
+ self.pg1.local_mac)
+
+ def verify_prefix_info(self, reported_prefix, prefix_option):
+ prefix = socket.inet_pton(socket.AF_INET6,
+ prefix_option.getfieldval("prefix"))
+ self.assert_equal(reported_prefix.dst_address, prefix)
+ self.assert_equal(reported_prefix.dst_address_length,
+ prefix_option.getfieldval("prefixlen"))
+ L = prefix_option.getfieldval("L")
+ A = prefix_option.getfieldval("A")
+ option_flags = (L << 7) | (A << 6)
+ self.assert_equal(reported_prefix.flags, option_flags)
+ self.assert_equal(reported_prefix.valid_time,
+ prefix_option.getfieldval("validlifetime"))
+ self.assert_equal(reported_prefix.preferred_time,
+ prefix_option.getfieldval("preferredlifetime"))
+
+ def test_rd_receive_router_advertisement(self):
+ """ Verify events triggered by received RA packets """
+
+ self.vapi.want_ip6_ra_events()
+
+ prefix_info_1 = ICMPv6NDOptPrefixInfo(
+ prefix="1::2",
+ prefixlen=50,
+ validlifetime=200,
+ preferredlifetime=500,
+ L=1,
+ A=1,
+ )
+
+ prefix_info_2 = ICMPv6NDOptPrefixInfo(
+ prefix="7::4",
+ prefixlen=20,
+ validlifetime=70,
+ preferredlifetime=1000,
+ L=1,
+ A=0,
+ )
+
+ p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
+ IPv6(dst=self.pg1.local_ip6_ll,
+ src=mk_ll_addr(self.pg1.remote_mac)) /
+ ICMPv6ND_RA() /
+ prefix_info_1 /
+ prefix_info_2)
+ self.pg1.add_stream([p])
+ self.pg_start()
+
+ ev = self.vapi.wait_for_event(10, "ip6_ra_event")
+
+ self.assert_equal(ev.current_hop_limit, 0)
+ self.assert_equal(ev.flags, 8)
+ self.assert_equal(ev.router_lifetime_in_sec, 1800)
+ self.assert_equal(ev.neighbor_reachable_time_in_msec, 0)
+ self.assert_equal(
+ ev.time_in_msec_between_retransmitted_neighbor_solicitations, 0)
+
+ self.assert_equal(ev.n_prefixes, 2)
+
+ self.verify_prefix_info(ev.prefixes[0], prefix_info_1)
+ self.verify_prefix_info(ev.prefixes[1], prefix_info_2)
+
+
class IPv6NDProxyTest(TestIPv6ND):
""" IPv6 ND ProxyTest Case """
return addr
+def ip6_normalize(ip6):
+ return socket.inet_ntop(socket.AF_INET6,
+ socket.inet_pton(socket.AF_INET6, ip6))
+
+
class NumericConstant(object):
__metaclass__ = ABCMeta
'address': address,
'pid': os.getpid(), })
+ def want_ip6_ra_events(self, enable_disable=1):
+ return self.api(self.papi.want_ip6_ra_events,
+ {'enable_disable': enable_disable,
+ 'pid': os.getpid(), })
+
+ def ip6nd_send_router_solicitation(self, sw_if_index, irt=1, mrt=120,
+ mrc=0, mrd=0):
+ return self.api(self.papi.ip6nd_send_router_solicitation,
+ {'irt': irt,
+ 'mrt': mrt,
+ 'mrc': mrc,
+ 'mrd': mrd,
+ 'sw_if_index': sw_if_index})
+
def want_macs_learn_events(self, enable_disable=1, scan_delay=0,
max_macs_in_event=0, learn_limit=0):
return self.api(self.papi.want_l2_macs_events,
Code Review / vpp.git / commitdiff