*/
#include <vnet/ip/ip.h>
+#include <vnet/ip/ip6_neighbor.h>
#include <vnet/ethernet/ethernet.h>
#include <vppinfra/mhash.h>
#include <vppinfra/md5.h>
+#include <vnet/adj/adj.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/fib/ip6_fib.h>
-#if DPDK==1
-#include <vnet/devices/dpdk/dpdk.h>
-#endif
-
-typedef struct {
- ip6_address_t ip6_address;
- u32 sw_if_index;
- u32 pad;
-} ip6_neighbor_key_t;
+/**
+ * @file
+ * @brief IPv6 Neighbor Adjacency and Neighbor Discovery.
+ *
+ * The files contains the API and CLI code for managing IPv6 neighbor
+ * adjacency tables and neighbor discovery logic.
+ */
-/* can't use sizeof link_layer_address, that's 8 */
+/* can't use sizeof link_layer_address, that's 8 */
#define ETHER_MAC_ADDR_LEN 6
-typedef struct {
- ip6_neighbor_key_t key;
- u8 link_layer_address[8];
- u16 flags;
-#define IP6_NEIGHBOR_FLAG_STATIC (1 << 0)
-#define IP6_NEIGHBOR_FLAG_GLEAN (2 << 0)
- u64 cpu_time_last_updated;
- u32 *adjacencies;
-} ip6_neighbor_t;
-
-/* advertised prefix option */
-typedef struct {
+/* advertised prefix option */
+typedef struct
+{
/* basic advertised information */
ip6_address_t prefix;
u8 prefix_len;
/* advertised values are computed from these times if decrementing */
f64 valid_lifetime_expires;
- f64 pref_lifetime_expires;
-
+ f64 pref_lifetime_expires;
+
/* local information */
int enabled;
int deprecated_prefix_flag;
- int decrement_lifetime_flag;
+ int decrement_lifetime_flag;
#define MIN_ADV_VALID_LIFETIME 7203 /* seconds */
#define DEF_ADV_VALID_LIFETIME 2592000
} ip6_radv_prefix_t;
-typedef struct {
+typedef struct
+{
/* group information */
u8 type;
ip6_address_t mcast_address;
} ip6_mldp_group_t;
/* configured router advertisement information per ipv6 interface */
-typedef struct {
+typedef struct
+{
/* advertised config information, zero means unspecified */
- u8 curr_hop_limit;
+ u8 curr_hop_limit;
int adv_managed_flag;
int adv_other_flag;
- u16 adv_router_lifetime_in_sec;
+ u16 adv_router_lifetime_in_sec;
u32 adv_neighbor_reachable_time_in_msec;
u32 adv_time_in_msec_between_retransmitted_neighbor_solicitations;
/* mtu option */
u32 adv_link_mtu;
-
+
/* source link layer option */
- u8 link_layer_address[8];
- u8 link_layer_addr_len;
+ u8 link_layer_address[8];
+ u8 link_layer_addr_len;
/* prefix option */
- ip6_radv_prefix_t * adv_prefixes_pool;
+ ip6_radv_prefix_t *adv_prefixes_pool;
/* Hash table mapping address to index in interface advertised prefix pool. */
mhash_t address_to_prefix_index;
/* MLDP group information */
- ip6_mldp_group_t * mldp_group_pool;
+ ip6_mldp_group_t *mldp_group_pool;
/* Hash table mapping address to index in mldp address pool. */
mhash_t address_to_mldp_index;
/* local information */
u32 sw_if_index;
u32 fib_index;
- int send_radv; /* radv on/off on this interface - set by config */
- int cease_radv; /* we are ceasing to send - set byf config */
+ int send_radv; /* radv on/off on this interface - set by config */
+ int cease_radv; /* we are ceasing to send - set byf config */
int send_unicast;
int adv_link_layer_address;
int prefix_option;
u32 seed;
u64 randomizer;
int ref_count;
- u32 all_nodes_adj_index;
- u32 all_routers_adj_index;
- u32 all_mldv2_routers_adj_index;
-
+ adj_index_t all_nodes_adj_index;
+ adj_index_t all_routers_adj_index;
+ adj_index_t all_mldv2_routers_adj_index;
+
/* timing information */
#define DEF_MAX_RADV_INTERVAL 200
#define DEF_MIN_RADV_INTERVAL .75 * DEF_MAX_RADV_INTERVAL
#define DEF_DEF_RTR_LIFETIME 3 * DEF_MAX_RADV_INTERVAL
#define MAX_DEF_RTR_LIFETIME 9000
-#define MAX_INITIAL_RTR_ADVERT_INTERVAL 16 /* seconds */
-#define MAX_INITIAL_RTR_ADVERTISEMENTS 3 /*transmissions */
-#define MIN_DELAY_BETWEEN_RAS 3 /* seconds */
-#define MAX_DELAY_BETWEEN_RAS 1800 /* seconds */
-#define MAX_RA_DELAY_TIME .5 /* seconds */
+#define MAX_INITIAL_RTR_ADVERT_INTERVAL 16 /* seconds */
+#define MAX_INITIAL_RTR_ADVERTISEMENTS 3 /*transmissions */
+#define MIN_DELAY_BETWEEN_RAS 3 /* seconds */
+#define MAX_DELAY_BETWEEN_RAS 1800 /* seconds */
+#define MAX_RA_DELAY_TIME .5 /* seconds */
f64 max_radv_interval;
f64 min_radv_interval;
u32 initial_adverts_count;
- f64 initial_adverts_interval;
+ f64 initial_adverts_interval;
u32 initial_adverts_sent;
/* stats */
} ip6_radv_t;
-typedef struct {
+typedef struct
+{
u32 next_index;
uword node_index;
uword type_opaque;
uword data;
+ /* Used for nd event notification only */
+ void *data_callback;
+ u32 pid;
} pending_resolution_t;
-typedef struct {
+typedef struct
+{
/* Hash tables mapping name to opcode. */
- uword * opcode_by_name;
+ uword *opcode_by_name;
/* lite beer "glean" adjacency handling */
mhash_t pending_resolutions_by_address;
- pending_resolution_t * pending_resolutions;
+ pending_resolution_t *pending_resolutions;
+
+ /* Mac address change notification */
+ mhash_t mac_changes_by_address;
+ pending_resolution_t *mac_changes;
- u32 * neighbor_input_next_index_by_hw_if_index;
+ u32 *neighbor_input_next_index_by_hw_if_index;
- ip6_neighbor_t * neighbor_pool;
+ ip6_neighbor_t *neighbor_pool;
mhash_t neighbor_index_by_key;
- u32 * if_radv_pool_index_by_sw_if_index;
+ u32 *if_radv_pool_index_by_sw_if_index;
- ip6_radv_t * if_radv_pool;
+ ip6_radv_t *if_radv_pool;
/* Neighbor attack mitigation */
u32 limit_neighbor_cache_size;
} ip6_neighbor_main_t;
static ip6_neighbor_main_t ip6_neighbor_main;
+static ip6_address_t ip6a_zero; /* ip6 address 0 */
-static u8 * format_ip6_neighbor_ip6_entry (u8 * s, va_list * va)
+static u8 *
+format_ip6_neighbor_ip6_entry (u8 * s, va_list * va)
{
- vlib_main_t * vm = va_arg (*va, vlib_main_t *);
- ip6_neighbor_t * n = va_arg (*va, ip6_neighbor_t *);
- vnet_main_t * vnm = vnet_get_main();
- vnet_sw_interface_t * si;
- u8 * flags = 0;
+ vlib_main_t *vm = va_arg (*va, vlib_main_t *);
+ ip6_neighbor_t *n = va_arg (*va, ip6_neighbor_t *);
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_sw_interface_t *si;
+ u8 *flags = 0;
- if (! n)
- return format (s, "%=12s%=20s%=6s%=20s%=40s", "Time", "Address", "Flags", "Link layer", "Interface");
+ if (!n)
+ return format (s, "%=12s%=20s%=6s%=20s%=40s", "Time", "Address", "Flags",
+ "Link layer", "Interface");
- if (n->flags & IP6_NEIGHBOR_FLAG_GLEAN)
- flags = format(flags, "G");
+ if (n->flags & IP6_NEIGHBOR_FLAG_DYNAMIC)
+ flags = format (flags, "D");
if (n->flags & IP6_NEIGHBOR_FLAG_STATIC)
- flags = format(flags, "S");
+ flags = format (flags, "S");
si = vnet_get_sw_interface (vnm, n->key.sw_if_index);
s = format (s, "%=12U%=20U%=6s%=20U%=40U",
format_vlib_cpu_time, vm, n->cpu_time_last_updated,
format_ip6_address, &n->key.ip6_address,
- flags ? (char *)flags : "",
+ flags ? (char *) flags : "",
format_ethernet_address, n->link_layer_address,
format_vnet_sw_interface_name, vnm, si);
- vec_free(flags);
+ vec_free (flags);
return s;
}
static clib_error_t *
ip6_neighbor_sw_interface_up_down (vnet_main_t * vnm,
- u32 sw_if_index,
- u32 flags)
+ u32 sw_if_index, u32 flags)
{
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- ip6_neighbor_t * n;
-
- if (! (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ ip6_neighbor_t *n;
+
+ if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
{
- u32 i, * to_delete = 0;
+ u32 i, *to_delete = 0;
- pool_foreach (n, nm->neighbor_pool, ({
+ /* *INDENT-OFF* */
+ pool_foreach (n, nm->neighbor_pool,
+ ({
if (n->key.sw_if_index == sw_if_index)
vec_add1 (to_delete, n - nm->neighbor_pool);
}));
+ /* *INDENT-ON* */
for (i = 0; i < vec_len (to_delete); i++)
{
n = pool_elt_at_index (nm->neighbor_pool, to_delete[i]);
mhash_unset (&nm->neighbor_index_by_key, &n->key, 0);
+ fib_table_entry_delete_index (n->fib_entry_index, FIB_SOURCE_ADJ);
pool_put (nm->neighbor_pool, n);
}
VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (ip6_neighbor_sw_interface_up_down);
-static void unset_random_neighbor_entry (void)
+static void
+unset_random_neighbor_entry (void)
{
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- vnet_main_t * vnm = vnet_get_main();
- vlib_main_t * vm = vnm->vlib_main;
- ip6_neighbor_t * e;
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ vnet_main_t *vnm = vnet_get_main ();
+ vlib_main_t *vm = vnm->vlib_main;
+ ip6_neighbor_t *e;
u32 index;
index = pool_next_index (nm->neighbor_pool, nm->neighbor_delete_rotor);
return;
e = pool_elt_at_index (nm->neighbor_pool, index);
-
+
vnet_unset_ip6_ethernet_neighbor (vm, e->key.sw_if_index,
- &e->key.ip6_address,
- e->link_layer_address,
- ETHER_MAC_ADDR_LEN);
+ &e->key.ip6_address,
+ e->link_layer_address,
+ ETHER_MAC_ADDR_LEN);
}
-typedef struct {
+typedef struct
+{
u8 is_add;
u8 is_static;
u8 link_layer_address[6];
ip6_address_t addr;
} ip6_neighbor_set_unset_rpc_args_t;
-#if DPDK > 0
-static void ip6_neighbor_set_unset_rpc_callback
-( ip6_neighbor_set_unset_rpc_args_t * a);
+static void ip6_neighbor_set_unset_rpc_callback
+ (ip6_neighbor_set_unset_rpc_args_t * a);
-static void set_unset_ip6_neighbor_rpc
-(vlib_main_t * vm,
- u32 sw_if_index,
- ip6_address_t * a,
- u8 *link_layer_addreess,
- int is_add, int is_static)
+static void set_unset_ip6_neighbor_rpc
+ (vlib_main_t * vm,
+ u32 sw_if_index,
+ ip6_address_t * a, u8 * link_layer_addreess, int is_add, int is_static)
{
ip6_neighbor_set_unset_rpc_args_t args;
void vl_api_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
-
+
args.sw_if_index = sw_if_index;
args.is_add = is_add;
args.is_static = is_static;
clib_memcpy (&args.addr, a, sizeof (*a));
clib_memcpy (args.link_layer_address, link_layer_addreess, 6);
-
+
vl_api_rpc_call_main_thread (ip6_neighbor_set_unset_rpc_callback,
- (u8 *) &args, sizeof (args));
+ (u8 *) & args, sizeof (args));
+}
+
+static void
+ip6_nbr_probe (ip_adjacency_t * adj)
+{
+ icmp6_neighbor_solicitation_header_t *h;
+ vnet_main_t *vnm = vnet_get_main ();
+ ip6_main_t *im = &ip6_main;
+ ip_interface_address_t *ia;
+ ip6_address_t *dst, *src;
+ vnet_hw_interface_t *hi;
+ vnet_sw_interface_t *si;
+ vlib_buffer_t *b;
+ int bogus_length;
+ vlib_main_t *vm;
+ u32 bi = 0;
+
+ vm = vlib_get_main ();
+
+ si = vnet_get_sw_interface (vnm, adj->rewrite_header.sw_if_index);
+ dst = &adj->sub_type.nbr.next_hop.ip6;
+
+ if (!(si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
+ {
+ return;
+ }
+ src = ip6_interface_address_matching_destination (im, dst,
+ adj->rewrite_header.
+ sw_if_index, &ia);
+ if (!src)
+ {
+ return;
+ }
+
+ h = vlib_packet_template_get_packet (vm,
+ &im->discover_neighbor_packet_template,
+ &bi);
+
+ hi = vnet_get_sup_hw_interface (vnm, adj->rewrite_header.sw_if_index);
+
+ h->ip.dst_address.as_u8[13] = dst->as_u8[13];
+ h->ip.dst_address.as_u8[14] = dst->as_u8[14];
+ h->ip.dst_address.as_u8[15] = dst->as_u8[15];
+ h->ip.src_address = src[0];
+ h->neighbor.target_address = dst[0];
+
+ clib_memcpy (h->link_layer_option.ethernet_address,
+ hi->hw_address, vec_len (hi->hw_address));
+
+ h->neighbor.icmp.checksum =
+ ip6_tcp_udp_icmp_compute_checksum (vm, 0, &h->ip, &bogus_length);
+ ASSERT (bogus_length == 0);
+
+ b = vlib_get_buffer (vm, bi);
+ vnet_buffer (b)->sw_if_index[VLIB_RX] =
+ vnet_buffer (b)->sw_if_index[VLIB_TX] = adj->rewrite_header.sw_if_index;
+
+ /* Add encapsulation string for software interface (e.g. ethernet header). */
+ vnet_rewrite_one_header (adj[0], h, sizeof (ethernet_header_t));
+ vlib_buffer_advance (b, -adj->rewrite_header.data_bytes);
+
+ {
+ vlib_frame_t *f = vlib_get_frame_to_node (vm, hi->output_node_index);
+ u32 *to_next = vlib_frame_vector_args (f);
+ to_next[0] = bi;
+ f->n_vectors = 1;
+ vlib_put_frame_to_node (vm, hi->output_node_index, f);
+ }
+}
+
+static void
+ip6_nd_mk_complete (adj_index_t ai, ip6_neighbor_t * nbr)
+{
+ adj_nbr_update_rewrite (ai, ADJ_NBR_REWRITE_FLAG_COMPLETE,
+ ethernet_build_rewrite (vnet_get_main (),
+ nbr->key.sw_if_index,
+ adj_get_link_type (ai),
+ nbr->link_layer_address));
+}
+
+static void
+ip6_nd_mk_incomplete (adj_index_t ai)
+{
+ ip_adjacency_t *adj = adj_get (ai);
+
+ adj_nbr_update_rewrite (ai,
+ ADJ_NBR_REWRITE_FLAG_INCOMPLETE,
+ ethernet_build_rewrite (vnet_get_main (),
+ adj->rewrite_header.
+ sw_if_index,
+ adj_get_link_type (ai),
+ VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST));
+}
+
+#define IP6_NBR_MK_KEY(k, sw_if_index, addr) \
+{ \
+ k.sw_if_index = sw_if_index; \
+ k.ip6_address = *addr; \
+ k.pad = 0; \
+}
+
+static ip6_neighbor_t *
+ip6_nd_find (u32 sw_if_index, const ip6_address_t * addr)
+{
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ ip6_neighbor_t *n = NULL;
+ ip6_neighbor_key_t k;
+ uword *p;
+
+ IP6_NBR_MK_KEY (k, sw_if_index, addr);
+
+ p = mhash_get (&nm->neighbor_index_by_key, &k);
+ if (p)
+ {
+ n = pool_elt_at_index (nm->neighbor_pool, p[0]);
+ }
+
+ return (n);
+}
+
+static adj_walk_rc_t
+ip6_nd_mk_complete_walk (adj_index_t ai, void *ctx)
+{
+ ip6_neighbor_t *nbr = ctx;
+
+ ip6_nd_mk_complete (ai, nbr);
+
+ return (ADJ_WALK_RC_CONTINUE);
+}
+
+static adj_walk_rc_t
+ip6_nd_mk_incomplete_walk (adj_index_t ai, void *ctx)
+{
+ ip6_nd_mk_incomplete (ai);
+
+ return (ADJ_WALK_RC_CONTINUE);
+}
+
+void
+ip6_ethernet_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai)
+{
+ ip6_neighbor_t *nbr;
+ ip_adjacency_t *adj;
+
+ adj = adj_get (ai);
+
+ nbr = ip6_nd_find (sw_if_index, &adj->sub_type.nbr.next_hop.ip6);
+
+ if (NULL != nbr)
+ {
+ adj_nbr_walk_nh6 (sw_if_index, &nbr->key.ip6_address,
+ ip6_nd_mk_complete_walk, nbr);
+ }
+ else
+ {
+ /*
+ * no matching ND entry.
+ * construct the rewrite required to for an ND packet, and stick
+ * that in the adj's pipe to smoke.
+ */
+ adj_nbr_update_rewrite (ai,
+ ADJ_NBR_REWRITE_FLAG_INCOMPLETE,
+ ethernet_build_rewrite (vnm,
+ sw_if_index,
+ VNET_LINK_IP6,
+ VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST));
+
+ /*
+ * since the FIB has added this adj for a route, it makes sense it may
+ * want to forward traffic sometime soon. Let's send a speculative ND.
+ * just one. If we were to do periodically that wouldn't be bad either,
+ * but that's more code than i'm prepared to write at this time for
+ * relatively little reward.
+ */
+ ip6_nbr_probe (adj);
+ }
}
-#endif
int
vnet_set_ip6_ethernet_neighbor (vlib_main_t * vm,
- u32 sw_if_index,
- ip6_address_t * a,
- u8 * link_layer_address,
- uword n_bytes_link_layer_address,
- int is_static)
-{
- vnet_main_t * vnm = vnet_get_main();
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
+ u32 sw_if_index,
+ ip6_address_t * a,
+ u8 * link_layer_address,
+ uword n_bytes_link_layer_address,
+ int is_static)
+{
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
ip6_neighbor_key_t k;
- ip6_neighbor_t * n = 0;
- ip6_main_t * im = &ip6_main;
- ip_lookup_main_t * lm = &im->lookup_main;
- int make_new_nd_cache_entry=1;
- uword * p;
+ ip6_neighbor_t *n = 0;
+ int make_new_nd_cache_entry = 1;
+ uword *p;
u32 next_index;
- u32 adj_index;
- ip_adjacency_t *existing_adj;
- pending_resolution_t * pr;
+ pending_resolution_t *pr, *mc;
-#if DPDK > 0
- if (os_get_cpu_number())
+ if (os_get_cpu_number ())
{
set_unset_ip6_neighbor_rpc (vm, sw_if_index, a, link_layer_address,
- 1 /* set new neighbor */, is_static);
+ 1 /* set new neighbor */ , is_static);
return 0;
}
-#endif
k.sw_if_index = sw_if_index;
k.ip6_address = a[0];
k.pad = 0;
- vlib_worker_thread_barrier_sync (vm);
-
p = mhash_get (&nm->neighbor_index_by_key, &k);
- if (p) {
- n = pool_elt_at_index (nm->neighbor_pool, p[0]);
- /* Refuse to over-write static neighbor entry. */
- if (!is_static &&
- (n->flags & IP6_NEIGHBOR_FLAG_STATIC))
- return -2;
- make_new_nd_cache_entry = 0;
- }
+ if (p)
+ {
+ n = pool_elt_at_index (nm->neighbor_pool, p[0]);
+ /* Refuse to over-write static neighbor entry. */
+ if (!is_static && (n->flags & IP6_NEIGHBOR_FLAG_STATIC))
+ return -2;
+ make_new_nd_cache_entry = 0;
+ }
- /* Note: always install the route. It might have been deleted */
- ip6_add_del_route_args_t args;
- ip_adjacency_t adj;
-
- memset (&adj, 0, sizeof(adj));
- adj.lookup_next_index = IP_LOOKUP_NEXT_REWRITE;
- adj.explicit_fib_index = ~0;
-
- vnet_rewrite_for_sw_interface
- (vnm,
- VNET_L3_PACKET_TYPE_IP6,
- sw_if_index,
- ip6_rewrite_node.index,
- link_layer_address,
- &adj.rewrite_header,
- sizeof (adj.rewrite_data));
-
- /* result of this lookup should be next-hop adjacency */
- adj_index = ip6_fib_lookup_with_table (im, im->fib_index_by_sw_if_index[sw_if_index], a);
- existing_adj = ip_get_adjacency(lm, adj_index);
-
- if (existing_adj->lookup_next_index == IP_LOOKUP_NEXT_ARP &&
- existing_adj->arp.next_hop.ip6.as_u64[0] == a->as_u64[0] &&
- existing_adj->arp.next_hop.ip6.as_u64[1] == a->as_u64[1])
- {
- u32 * ai;
- u32 * adjs = vec_dup(n->adjacencies);
- /* Update all adj assigned to this arp entry */
- vec_foreach(ai, adjs)
+ if (make_new_nd_cache_entry)
{
- int i;
- ip_adjacency_t * uadj = ip_get_adjacency(lm, *ai);
- for (i = 0; i < uadj->n_adj; i++)
- if (uadj[i].lookup_next_index == IP_LOOKUP_NEXT_ARP &&
- uadj[i].arp.next_hop.ip6.as_u64[0] == a->as_u64[0] &&
- uadj[i].arp.next_hop.ip6.as_u64[1] == a->as_u64[1])
- ip_update_adjacency (lm, *ai + i, &adj);
+ fib_prefix_t pfx = {
+ .fp_len = 128,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = k.ip6_address,
+ }
+ ,
+ };
+ u32 fib_index;
+
+ pool_get (nm->neighbor_pool, n);
+ mhash_set (&nm->neighbor_index_by_key, &k, n - nm->neighbor_pool,
+ /* old value */ 0);
+ n->key = k;
+
+ clib_memcpy (n->link_layer_address,
+ link_layer_address, n_bytes_link_layer_address);
+
+ /*
+ * create the adj-fib. the entry in the FIB table for and to the peer.
+ */
+ fib_index = ip6_main.fib_index_by_sw_if_index[n->key.sw_if_index];
+ n->fib_entry_index = fib_table_entry_update_one_path (fib_index, &pfx, FIB_SOURCE_ADJ, FIB_ENTRY_FLAG_NONE, FIB_PROTOCOL_IP6, &pfx.fp_addr, n->key.sw_if_index, ~0, 1, NULL, // no label stack
+ FIB_ROUTE_PATH_FLAG_NONE);
}
- vec_free(adjs);
- }
else
- {
- /* create new adj */
- args.table_index_or_table_id = im->fib_index_by_sw_if_index[sw_if_index];
- args.flags = IP6_ROUTE_FLAG_FIB_INDEX | IP6_ROUTE_FLAG_ADD | IP6_ROUTE_FLAG_NEIGHBOR;
- args.dst_address = a[0];
- args.dst_address_length = 128;
- args.adj_index = ~0;
- args.add_adj = &adj;
- args.n_add_adj = 1;
- ip6_add_del_route (im, &args);
- }
-
- if (make_new_nd_cache_entry) {
- pool_get (nm->neighbor_pool, n);
- mhash_set (&nm->neighbor_index_by_key, &k, n - nm->neighbor_pool,
- /* old value */ 0);
- n->key = k;
- }
+ {
+ /*
+ * prevent a DoS attack from the data-plane that
+ * spams us with no-op updates to the MAC address
+ */
+ if (0 == memcmp (n->link_layer_address,
+ link_layer_address, n_bytes_link_layer_address))
+ return -1;
+
+ clib_memcpy (n->link_layer_address,
+ link_layer_address, n_bytes_link_layer_address);
+ }
- /* Update time stamp and ethernet address. */
- clib_memcpy (n->link_layer_address, link_layer_address, n_bytes_link_layer_address);
+ /* Update time stamp and flags. */
n->cpu_time_last_updated = clib_cpu_time_now ();
if (is_static)
n->flags |= IP6_NEIGHBOR_FLAG_STATIC;
+ else
+ n->flags |= IP6_NEIGHBOR_FLAG_DYNAMIC;
+
+ adj_nbr_walk_nh6 (sw_if_index,
+ &n->key.ip6_address, ip6_nd_mk_complete_walk, n);
/* Customer(s) waiting for this address to be resolved? */
p = mhash_get (&nm->pending_resolutions_by_address, a);
- if (p == 0)
- goto out;
-
- next_index = p[0];
-
- while (next_index != (u32)~0)
+ if (p)
+ {
+ next_index = p[0];
+
+ while (next_index != (u32) ~ 0)
+ {
+ pr = pool_elt_at_index (nm->pending_resolutions, next_index);
+ vlib_process_signal_event (vm, pr->node_index,
+ pr->type_opaque, pr->data);
+ next_index = pr->next_index;
+ pool_put (nm->pending_resolutions, pr);
+ }
+
+ mhash_unset (&nm->pending_resolutions_by_address, a, 0);
+ }
+
+ /* Customer(s) requesting ND event for this address? */
+ p = mhash_get (&nm->mac_changes_by_address, a);
+ if (p)
{
- pr = pool_elt_at_index (nm->pending_resolutions, next_index);
- vlib_process_signal_event (vm, pr->node_index,
- pr->type_opaque,
- pr->data);
- next_index = pr->next_index;
- pool_put (nm->pending_resolutions, pr);
+ next_index = p[0];
+
+ while (next_index != (u32) ~ 0)
+ {
+ int (*fp) (u32, u8 *, u32, ip6_address_t *);
+ int rv = 1;
+ mc = pool_elt_at_index (nm->mac_changes, next_index);
+ fp = mc->data_callback;
+
+ /* Call the user's data callback, return 1 to suppress dup events */
+ if (fp)
+ rv =
+ (*fp) (mc->data, link_layer_address, sw_if_index, &ip6a_zero);
+ /*
+ * Signal the resolver process, as long as the user
+ * says they want to be notified
+ */
+ if (rv == 0)
+ vlib_process_signal_event (vm, mc->node_index,
+ mc->type_opaque, mc->data);
+ next_index = mc->next_index;
+ }
}
- mhash_unset (&nm->pending_resolutions_by_address, a, 0);
-
-out:
- vlib_worker_thread_barrier_release(vm);
return 0;
}
int
vnet_unset_ip6_ethernet_neighbor (vlib_main_t * vm,
- u32 sw_if_index,
- ip6_address_t * a,
- u8 * link_layer_address,
- uword n_bytes_link_layer_address)
+ u32 sw_if_index,
+ ip6_address_t * a,
+ u8 * link_layer_address,
+ uword n_bytes_link_layer_address)
{
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
ip6_neighbor_key_t k;
- ip6_neighbor_t * n;
- ip6_main_t * im = &ip6_main;
- ip6_add_del_route_args_t args;
- uword * p;
+ ip6_neighbor_t *n;
+ uword *p;
int rv = 0;
-#if DPDK > 0
- if (os_get_cpu_number())
+ if (os_get_cpu_number ())
{
set_unset_ip6_neighbor_rpc (vm, sw_if_index, a, link_layer_address,
- 0 /* unset */, 0);
+ 0 /* unset */ , 0);
return 0;
}
-#endif
k.sw_if_index = sw_if_index;
k.ip6_address = a[0];
k.pad = 0;
-
- vlib_worker_thread_barrier_sync (vm);
-
+
p = mhash_get (&nm->neighbor_index_by_key, &k);
if (p == 0)
{
rv = -1;
goto out;
}
-
+
n = pool_elt_at_index (nm->neighbor_pool, p[0]);
mhash_unset (&nm->neighbor_index_by_key, &n->key, 0);
- pool_put (nm->neighbor_pool, n);
-
- args.table_index_or_table_id = im->fib_index_by_sw_if_index[sw_if_index];
- args.flags = IP6_ROUTE_FLAG_FIB_INDEX | IP6_ROUTE_FLAG_DEL
- | IP6_ROUTE_FLAG_NEIGHBOR;
- args.dst_address = a[0];
- args.dst_address_length = 128;
- args.adj_index = ~0;
- args.add_adj = NULL;
- args.n_add_adj = 0;
- ip6_add_del_route (im, &args);
- out:
- vlib_worker_thread_barrier_release(vm);
- return rv;
-}
-
-
-u32
-vnet_ip6_neighbor_glean_add(u32 fib_index, void * next_hop_arg)
-{
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- ip6_main_t * im = &ip6_main;
- ip_lookup_main_t * lm = &im->lookup_main;
- ip6_address_t * next_hop = next_hop_arg;
- ip_adjacency_t add_adj, *adj;
- ip6_add_del_route_args_t args;
- ip6_neighbor_t * n;
- ip6_neighbor_key_t k;
- u32 adj_index;
-
- adj_index = ip6_fib_lookup_with_table(im, fib_index, next_hop);
- adj = ip_get_adjacency(lm, adj_index);
- if (!adj || adj->lookup_next_index != IP_LOOKUP_NEXT_ARP)
- return ~0;
+ adj_nbr_walk_nh6 (sw_if_index,
+ &n->key.ip6_address, ip6_nd_mk_incomplete_walk, NULL);
- if (adj->arp.next_hop.ip6.as_u64[0] ||
- adj->arp.next_hop.ip6.as_u64[1])
- return adj_index;
-
- k.sw_if_index = adj->rewrite_header.sw_if_index;
- k.ip6_address = *next_hop;
- k.pad = 0;
- if (mhash_get (&nm->neighbor_index_by_key, &k))
- return adj_index;
+ fib_table_entry_delete_index (n->fib_entry_index, FIB_SOURCE_ADJ);
+ pool_put (nm->neighbor_pool, n);
- pool_get (nm->neighbor_pool, n);
- mhash_set (&nm->neighbor_index_by_key, &k, n - nm->neighbor_pool, /* old value */ 0);
- n->key = k;
- n->cpu_time_last_updated = clib_cpu_time_now ();
- n->flags = IP6_NEIGHBOR_FLAG_GLEAN;
-
- memset(&args, 0, sizeof(args));
- memcpy(&add_adj, adj, sizeof(add_adj));
- add_adj.arp.next_hop.ip6 = *next_hop; /* install neighbor /128 route */
- args.table_index_or_table_id = fib_index;
- args.flags = IP6_ROUTE_FLAG_FIB_INDEX | IP6_ROUTE_FLAG_ADD | IP6_ROUTE_FLAG_NEIGHBOR;
- args.dst_address = *next_hop;
- args.dst_address_length = 128;
- args.adj_index = ~0;
- args.add_adj = &add_adj;
- args.n_add_adj = 1;
- ip6_add_del_route (im, &args);
- return ip6_fib_lookup_with_table (im, fib_index, next_hop);
+out:
+ return rv;
}
-#if DPDK > 0
-static void ip6_neighbor_set_unset_rpc_callback
-( ip6_neighbor_set_unset_rpc_args_t * a)
+static void ip6_neighbor_set_unset_rpc_callback
+ (ip6_neighbor_set_unset_rpc_args_t * a)
{
- vlib_main_t * vm = vlib_get_main();
- if (a->is_add)
- vnet_set_ip6_ethernet_neighbor (vm, a->sw_if_index, &a->addr,
- a->link_layer_address, 6, a->is_static);
+ vlib_main_t *vm = vlib_get_main ();
+ if (a->is_add)
+ vnet_set_ip6_ethernet_neighbor (vm, a->sw_if_index, &a->addr,
+ a->link_layer_address, 6, a->is_static);
else
- vnet_unset_ip6_ethernet_neighbor (vm, a->sw_if_index, &a->addr,
- a->link_layer_address, 6);
+ vnet_unset_ip6_ethernet_neighbor (vm, a->sw_if_index, &a->addr,
+ a->link_layer_address, 6);
}
-#endif
static int
ip6_neighbor_sort (void *a1, void *a2)
{
- vnet_main_t * vnm = vnet_get_main();
- ip6_neighbor_t * n1 = a1, * n2 = a2;
+ vnet_main_t *vnm = vnet_get_main ();
+ ip6_neighbor_t *n1 = a1, *n2 = a2;
int cmp;
- cmp = vnet_sw_interface_compare (vnm, n1->key.sw_if_index,
- n2->key.sw_if_index);
- if (! cmp)
+ cmp = vnet_sw_interface_compare (vnm, n1->key.sw_if_index,
+ n2->key.sw_if_index);
+ if (!cmp)
cmp = ip6_address_compare (&n1->key.ip6_address, &n2->key.ip6_address);
return cmp;
}
+ip6_neighbor_t *
+ip6_neighbors_entries (u32 sw_if_index)
+{
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ ip6_neighbor_t *n, *ns = 0;
+
+ /* *INDENT-OFF* */
+ pool_foreach (n, nm->neighbor_pool,
+ ({
+ if (sw_if_index != ~0 && n->key.sw_if_index != sw_if_index)
+ continue;
+ vec_add1 (ns, n[0]);
+ }));
+ /* *INDENT-ON* */
+
+ if (ns)
+ vec_sort_with_function (ns, ip6_neighbor_sort);
+ return ns;
+}
+
static clib_error_t *
show_ip6_neighbors (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
- vnet_main_t * vnm = vnet_get_main();
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- ip6_neighbor_t * n, * ns;
- clib_error_t * error = 0;
+ vnet_main_t *vnm = vnet_get_main ();
+ ip6_neighbor_t *n, *ns;
+ clib_error_t *error = 0;
u32 sw_if_index;
/* Filter entries by interface if given. */
sw_if_index = ~0;
(void) unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index);
- ns = 0;
- pool_foreach (n, nm->neighbor_pool, ({ vec_add1 (ns, n[0]); }));
- vec_sort_with_function (ns, ip6_neighbor_sort);
- vlib_cli_output (vm, "%U", format_ip6_neighbor_ip6_entry, vm, 0);
- vec_foreach (n, ns) {
- if (sw_if_index != ~0 && n->key.sw_if_index != sw_if_index)
- continue;
- vlib_cli_output (vm, "%U", format_ip6_neighbor_ip6_entry, vm, n);
- }
- vec_free (ns);
+ ns = ip6_neighbors_entries (sw_if_index);
+ if (ns)
+ {
+ vlib_cli_output (vm, "%U", format_ip6_neighbor_ip6_entry, vm, 0);
+ vec_foreach (n, ns)
+ {
+ vlib_cli_output (vm, "%U", format_ip6_neighbor_ip6_entry, vm, n);
+ }
+ vec_free (ns);
+ }
return error;
}
+/*?
+ * This command is used to display the adjacent IPv6 hosts found via
+ * neighbor discovery. Optionally, limit the output to the specified
+ * interface.
+ *
+ * @cliexpar
+ * Example of how to display the IPv6 neighbor adjacency table:
+ * @cliexstart{show ip6 neighbors}
+ * Time Address Flags Link layer Interface
+ * 34.0910 ::a:1:1:0:7 02:fe:6a:07:39:6f GigabitEthernet2/0/0
+ * 173.2916 ::b:5:1:c:2 02:fe:50:62:3a:94 GigabitEthernet2/0/0
+ * 886.6654 ::1:1:c:0:9 S 02:fe:e4:45:27:5b GigabitEthernet3/0/0
+ * @cliexend
+ * Example of how to display the IPv6 neighbor adjacency table for given interface:
+ * @cliexstart{show ip6 neighbors GigabitEthernet2/0/0}
+ * Time Address Flags Link layer Interface
+ * 34.0910 ::a:1:1:0:7 02:fe:6a:07:39:6f GigabitEthernet2/0/0
+ * 173.2916 ::b:5:1:c:2 02:fe:50:62:3a:94 GigabitEthernet2/0/0
+ * @cliexend
+?*/
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ip6_neighbors_command, static) = {
.path = "show ip6 neighbors",
.function = show_ip6_neighbors,
- .short_help = "Show ip6 neighbors",
+ .short_help = "show ip6 neighbors [<interface>]",
};
+/* *INDENT-ON* */
static clib_error_t *
set_ip6_neighbor (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
- vnet_main_t * vnm = vnet_get_main();
+ vnet_main_t *vnm = vnet_get_main ();
ip6_address_t addr;
u8 mac_address[6];
int addr_valid = 0;
int is_static = 0;
u32 sw_if_index;
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
/* intfc, ip6-address, mac-address */
if (unformat (input, "%U %U %U",
- unformat_vnet_sw_interface, vnm, &sw_if_index,
- unformat_ip6_address, &addr,
- unformat_ethernet_address, mac_address))
- addr_valid = 1;
+ unformat_vnet_sw_interface, vnm, &sw_if_index,
+ unformat_ip6_address, &addr,
+ unformat_ethernet_address, mac_address))
+ addr_valid = 1;
else if (unformat (input, "delete") || unformat (input, "del"))
- is_del = 1;
+ is_del = 1;
else if (unformat (input, "static"))
- is_static = 1;
+ is_static = 1;
else
- break;
+ break;
}
if (!addr_valid)
return clib_error_return (0, "Missing interface, ip6 or hw address");
-
+
if (!is_del)
vnet_set_ip6_ethernet_neighbor (vm, sw_if_index, &addr,
- mac_address, sizeof(mac_address), is_static);
+ mac_address, sizeof (mac_address),
+ is_static);
else
vnet_unset_ip6_ethernet_neighbor (vm, sw_if_index, &addr,
- mac_address, sizeof(mac_address));
+ mac_address, sizeof (mac_address));
return 0;
}
-VLIB_CLI_COMMAND (set_ip6_neighbor_command, static) = {
+/*?
+ * This command is used to manually add an entry to the IPv6 neighbor
+ * adjacency table. Optionally, the entry can be added as static. It is
+ * also used to remove an entry from the table. Use the '<em>show ip6
+ * neighbors</em>' command to display all learned and manually entered entries.
+ *
+ * @cliexpar
+ * Example of how to add a static entry to the IPv6 neighbor adjacency table:
+ * @cliexcmd{set ip6 neighbor GigabitEthernet2/0/0 ::1:1:c:0:9 02:fe:e4:45:27:5b static}
+ * Example of how to delete an entry from the IPv6 neighbor adjacency table:
+ * @cliexcmd{set ip6 neighbor del GigabitEthernet2/0/0 ::1:1:c:0:9 02:fe:e4:45:27:5b}
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (set_ip6_neighbor_command, static) =
+{
.path = "set ip6 neighbor",
.function = set_ip6_neighbor,
- .short_help = "set ip6 neighbor [del] <intfc> <ip6-address> <mac-address> [static]",
+ .short_help = "set ip6 neighbor [del] <interface> <ip6-address> <mac-address> [static]",
};
+/* *INDENT-ON* */
-typedef enum {
+typedef enum
+{
ICMP6_NEIGHBOR_SOLICITATION_NEXT_DROP,
ICMP6_NEIGHBOR_SOLICITATION_NEXT_REPLY,
ICMP6_NEIGHBOR_SOLICITATION_N_NEXT,
vlib_frame_t * frame,
uword is_solicitation)
{
- vnet_main_t * vnm = vnet_get_main();
- ip6_main_t * im = &ip6_main;
- ip_lookup_main_t * lm = &im->lookup_main;
+ vnet_main_t *vnm = vnet_get_main ();
+ ip6_main_t *im = &ip6_main;
uword n_packets = frame->n_vectors;
- u32 * from, * to_next;
+ u32 *from, *to_next;
u32 n_left_from, n_left_to_next, next_index, n_advertisements_sent;
icmp6_neighbor_discovery_option_type_t option_type;
- vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip6_icmp_input_node.index);
+ vlib_node_runtime_t *error_node =
+ vlib_node_get_runtime (vm, ip6_icmp_input_node.index);
int bogus_length;
from = vlib_frame_vector_args (frame);
n_left_from = n_packets;
next_index = node->cached_next_index;
-
+
if (node->flags & VLIB_NODE_FLAG_TRACE)
vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors,
/* stride */ 1,
sizeof (icmp6_input_trace_t));
- option_type =
+ option_type =
(is_solicitation
? ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address
: ICMP6_NEIGHBOR_DISCOVERY_OPTION_target_link_layer_address);
while (n_left_from > 0 && n_left_to_next > 0)
{
- vlib_buffer_t * p0;
- ip6_header_t * ip0;
- icmp6_neighbor_solicitation_or_advertisement_header_t * h0;
- icmp6_neighbor_discovery_ethernet_link_layer_address_option_t * o0;
+ vlib_buffer_t *p0;
+ ip6_header_t *ip0;
+ icmp6_neighbor_solicitation_or_advertisement_header_t *h0;
+ icmp6_neighbor_discovery_ethernet_link_layer_address_option_t *o0;
u32 bi0, options_len0, sw_if_index0, next0, error0;
- u32 ip6_sadd_link_local, ip6_sadd_unspecified;
- int is_rewrite0;
- u32 ni0;
-
+ u32 ip6_sadd_link_local, ip6_sadd_unspecified;
+ int is_rewrite0;
+ u32 ni0;
+
bi0 = to_next[0] = from[0];
from += 1;
to_next += 1;
n_left_from -= 1;
n_left_to_next -= 1;
-
+
p0 = vlib_get_buffer (vm, bi0);
ip0 = vlib_buffer_get_current (p0);
h0 = ip6_next_header (ip0);
- options_len0 = clib_net_to_host_u16 (ip0->payload_length) - sizeof (h0[0]);
+ options_len0 =
+ clib_net_to_host_u16 (ip0->payload_length) - sizeof (h0[0]);
error0 = ICMP6_ERROR_NONE;
sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX];
- ip6_sadd_link_local = ip6_address_is_link_local_unicast(&ip0->src_address);
- ip6_sadd_unspecified = ip6_address_is_unspecified (&ip0->src_address);
+ ip6_sadd_link_local =
+ ip6_address_is_link_local_unicast (&ip0->src_address);
+ ip6_sadd_unspecified =
+ ip6_address_is_unspecified (&ip0->src_address);
/* Check that source address is unspecified, link-local or else on-link. */
if (!ip6_sadd_unspecified && !ip6_sadd_link_local)
{
u32 src_adj_index0 = ip6_src_lookup_for_packet (im, p0, ip0);
- ip_adjacency_t * adj0 = ip_get_adjacency (&im->lookup_main, src_adj_index0);
-
- /* Allow all realistic-looking rewrite adjacencies to pass */
- ni0 = adj0->lookup_next_index;
- is_rewrite0 = (ni0 >= IP_LOOKUP_NEXT_ARP) &&
- (ni0 < IP_LOOKUP_N_NEXT);
-
- error0 = ((adj0->rewrite_header.sw_if_index != sw_if_index0
- || ! is_rewrite0)
- ? ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_NOT_ON_LINK
- : error0);
- }
-
+
+ if (ADJ_INDEX_INVALID != src_adj_index0)
+ {
+ ip_adjacency_t *adj0 =
+ ip_get_adjacency (&im->lookup_main, src_adj_index0);
+
+ /* Allow all realistic-looking rewrite adjacencies to pass */
+ ni0 = adj0->lookup_next_index;
+ is_rewrite0 = (ni0 >= IP_LOOKUP_NEXT_ARP) &&
+ (ni0 < IP6_LOOKUP_N_NEXT);
+
+ error0 = ((adj0->rewrite_header.sw_if_index != sw_if_index0
+ || !is_rewrite0)
+ ?
+ ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_NOT_ON_LINK
+ : error0);
+ }
+ else
+ {
+ error0 =
+ ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_NOT_ON_LINK;
+ }
+ }
+
o0 = (void *) (h0 + 1);
o0 = ((options_len0 == 8 && o0->header.type == option_type
&& o0->header.n_data_u64s == 1) ? o0 : 0);
/* If src address unspecified or link local, donot learn neighbor MAC */
- if (PREDICT_TRUE (error0 == ICMP6_ERROR_NONE && o0 != 0 &&
- !ip6_sadd_unspecified && !ip6_sadd_link_local))
- {
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- if (nm->limit_neighbor_cache_size &&
- pool_elts (nm->neighbor_pool) >= nm->limit_neighbor_cache_size)
- unset_random_neighbor_entry();
- vnet_set_ip6_ethernet_neighbor (
- vm, sw_if_index0,
- is_solicitation ? &ip0->src_address : &h0->target_address,
- o0->ethernet_address, sizeof (o0->ethernet_address), 0);
- }
+ if (PREDICT_TRUE (error0 == ICMP6_ERROR_NONE && o0 != 0 &&
+ !ip6_sadd_unspecified && !ip6_sadd_link_local))
+ {
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ if (nm->limit_neighbor_cache_size &&
+ pool_elts (nm->neighbor_pool) >=
+ nm->limit_neighbor_cache_size)
+ unset_random_neighbor_entry ();
+ vnet_set_ip6_ethernet_neighbor (vm, sw_if_index0,
+ is_solicitation ?
+ &ip0->src_address :
+ &h0->target_address,
+ o0->ethernet_address,
+ sizeof (o0->ethernet_address),
+ 0);
+ }
if (is_solicitation && error0 == ICMP6_ERROR_NONE)
{
- /* Check that target address is one that we know about. */
- ip_interface_address_t * ia0;
- ip6_address_fib_t ip6_af0;
- void * oldheap;
-
- ip6_addr_fib_init (&ip6_af0, &h0->target_address,
- vec_elt (im->fib_index_by_sw_if_index,
- sw_if_index0));
-
- /* Gross kludge, "thank you" MJ, don't even ask */
- oldheap = clib_mem_set_heap (clib_per_cpu_mheaps[0]);
- ia0 = ip_get_interface_address (lm, &ip6_af0);
- clib_mem_set_heap (oldheap);
- error0 = ia0 == 0 ?
- ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_UNKNOWN : error0;
+ /* Check that target address is local to this router. */
+ fib_node_index_t fei;
+ u32 fib_index;
+
+ fib_index =
+ ip6_fib_table_get_index_for_sw_if_index (sw_if_index0);
+
+ if (~0 == fib_index)
+ {
+ error0 = ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_UNKNOWN;
+ }
+ else
+ {
+ fei = ip6_fib_table_lookup_exact_match (fib_index,
+ &h0->target_address,
+ 128);
+
+ if (FIB_NODE_INDEX_INVALID == fei ||
+ !(FIB_ENTRY_FLAG_LOCAL &
+ fib_entry_get_flags_for_source (fei,
+ FIB_SOURCE_INTERFACE)))
+ {
+ error0 =
+ ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_UNKNOWN;
+ }
+ }
}
if (is_solicitation)
- next0 = (error0 != ICMP6_ERROR_NONE
- ? ICMP6_NEIGHBOR_SOLICITATION_NEXT_DROP
- : ICMP6_NEIGHBOR_SOLICITATION_NEXT_REPLY);
+ next0 = (error0 != ICMP6_ERROR_NONE
+ ? ICMP6_NEIGHBOR_SOLICITATION_NEXT_DROP
+ : ICMP6_NEIGHBOR_SOLICITATION_NEXT_REPLY);
else
{
- next0 = 0;
- error0 = error0 == ICMP6_ERROR_NONE ?
- ICMP6_ERROR_NEIGHBOR_ADVERTISEMENTS_RX : error0;
+ next0 = 0;
+ error0 = error0 == ICMP6_ERROR_NONE ?
+ ICMP6_ERROR_NEIGHBOR_ADVERTISEMENTS_RX : error0;
}
if (is_solicitation && error0 == ICMP6_ERROR_NONE)
{
- vnet_sw_interface_t * sw_if0;
- ethernet_interface_t * eth_if0;
- ethernet_header_t *eth0;
+ vnet_sw_interface_t *sw_if0;
+ ethernet_interface_t *eth_if0;
+ ethernet_header_t *eth0;
- /* dst address is either source address or the all-nodes mcast addr */
- if(!ip6_sadd_unspecified)
- ip0->dst_address = ip0->src_address;
+ /* dst address is either source address or the all-nodes mcast addr */
+ if (!ip6_sadd_unspecified)
+ ip0->dst_address = ip0->src_address;
else
- ip6_set_reserved_multicast_address(&ip0->dst_address,
- IP6_MULTICAST_SCOPE_link_local,
- IP6_MULTICAST_GROUP_ID_all_hosts);
+ ip6_set_reserved_multicast_address (&ip0->dst_address,
+ IP6_MULTICAST_SCOPE_link_local,
+ IP6_MULTICAST_GROUP_ID_all_hosts);
ip0->src_address = h0->target_address;
- ip0->hop_limit = 255;
+ ip0->hop_limit = 255;
h0->icmp.type = ICMP6_neighbor_advertisement;
sw_if0 = vnet_get_sup_sw_interface (vnm, sw_if_index0);
ASSERT (sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE);
- eth_if0 = ethernet_get_interface (ðernet_main, sw_if0->hw_if_index);
+ eth_if0 =
+ ethernet_get_interface (ðernet_main, sw_if0->hw_if_index);
if (eth_if0 && o0)
{
- clib_memcpy (o0->ethernet_address, eth_if0->address, 6);
- o0->header.type =
- ICMP6_NEIGHBOR_DISCOVERY_OPTION_target_link_layer_address;
+ clib_memcpy (o0->ethernet_address, eth_if0->address, 6);
+ o0->header.type =
+ ICMP6_NEIGHBOR_DISCOVERY_OPTION_target_link_layer_address;
}
h0->advertisement_flags = clib_host_to_net_u32
| ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_OVERRIDE);
h0->icmp.checksum = 0;
- h0->icmp.checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip0,
- &bogus_length);
- ASSERT(bogus_length == 0);
-
- /* Reuse current MAC header, copy SMAC to DMAC and
- * interface MAC to SMAC */
- vlib_buffer_advance(p0, - ethernet_buffer_header_size(p0));
- eth0 = vlib_buffer_get_current(p0);
- clib_memcpy(eth0->dst_address, eth0->src_address, 6);
- clib_memcpy(eth0->src_address, eth_if0->address, 6);
-
- /* Setup input and output sw_if_index for packet */
- ASSERT(vnet_buffer(p0)->sw_if_index[VLIB_RX] == sw_if_index0);
- vnet_buffer(p0)->sw_if_index[VLIB_TX] = sw_if_index0;
- vnet_buffer(p0)->sw_if_index[VLIB_RX] =
- vnet_main.local_interface_sw_if_index;
+ h0->icmp.checksum =
+ ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip0,
+ &bogus_length);
+ ASSERT (bogus_length == 0);
+
+ /* Reuse current MAC header, copy SMAC to DMAC and
+ * interface MAC to SMAC */
+ vlib_buffer_advance (p0, -ethernet_buffer_header_size (p0));
+ eth0 = vlib_buffer_get_current (p0);
+ clib_memcpy (eth0->dst_address, eth0->src_address, 6);
+ if (eth_if0)
+ clib_memcpy (eth0->src_address, eth_if0->address, 6);
+
+ /* Setup input and output sw_if_index for packet */
+ ASSERT (vnet_buffer (p0)->sw_if_index[VLIB_RX] == sw_if_index0);
+ vnet_buffer (p0)->sw_if_index[VLIB_TX] = sw_if_index0;
+ vnet_buffer (p0)->sw_if_index[VLIB_RX] =
+ vnet_main.local_interface_sw_if_index;
n_advertisements_sent++;
- }
+ }
p0->error = error_node->errors[error0];
}
/* Account for advertisements sent. */
- vlib_error_count (vm, error_node->node_index, ICMP6_ERROR_NEIGHBOR_ADVERTISEMENTS_TX, n_advertisements_sent);
+ vlib_error_count (vm, error_node->node_index,
+ ICMP6_ERROR_NEIGHBOR_ADVERTISEMENTS_TX,
+ n_advertisements_sent);
return frame->n_vectors;
}
_ (ALERT, "ALERT") \
_ (EMERG, "EMERGENCY")
-typedef enum {
+typedef enum
+{
#define _(f,s) LOG_##f,
foreach_log_level
#undef _
} log_level_t;
-static char * log_level_strings[] = {
+static char *log_level_strings[] = {
#define _(f,s) s,
foreach_log_level
#undef _
};
-static int logmask = 1 << LOG_DEBUG;
+static int logmask = 1 << LOG_DEBUG;
static void
-ip6_neighbor_syslog(vlib_main_t *vm, int priority, char * fmt, ...)
+ip6_neighbor_syslog (vlib_main_t * vm, int priority, char *fmt, ...)
{
/* just use elog for now */
u8 *what;
va_list va;
- if( (priority > LOG_EMERG) ||
- !(logmask & (1 << priority)))
- return;
+ if ((priority > LOG_EMERG) || !(logmask & (1 << priority)))
+ return;
va_start (va, fmt);
- if(fmt)
+ if (fmt)
{
what = va_format (0, fmt, &va);
- ELOG_TYPE_DECLARE (e) = {
- .format = "ip6 nd: (%s): %s",
- .format_args = "T4T4",
- };
- struct { u32 s[2]; } * ed;
+ ELOG_TYPE_DECLARE (e) =
+ {
+ .format = "ip6 nd: (%s): %s",.format_args = "T4T4",};
+ struct
+ {
+ u32 s[2];
+ } *ed;
ed = ELOG_DATA (&vm->elog_main, e);
- ed->s[0] = elog_string(&vm->elog_main, log_level_strings[priority]);
- ed->s[1] = elog_string(&vm->elog_main, (char *)what);
+ ed->s[0] = elog_string (&vm->elog_main, log_level_strings[priority]);
+ ed->s[1] = elog_string (&vm->elog_main, (char *) what);
}
va_end (va);
return;
}
/* ipv6 neighbor discovery - router advertisements */
-typedef enum {
+typedef enum
+{
ICMP6_ROUTER_SOLICITATION_NEXT_DROP,
ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW,
ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX,
} icmp6_router_solicitation_or_advertisement_next_t;
static_always_inline uword
-icmp6_router_solicitation(vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+icmp6_router_solicitation (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- vnet_main_t * vnm = vnet_get_main();
- ip6_main_t * im = &ip6_main;
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
+ vnet_main_t *vnm = vnet_get_main ();
+ ip6_main_t *im = &ip6_main;
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
uword n_packets = frame->n_vectors;
- u32 * from, * to_next;
+ u32 *from, *to_next;
u32 n_left_from, n_left_to_next, next_index;
- u32 n_advertisements_sent = 0;
+ u32 n_advertisements_sent = 0;
int bogus_length;
icmp6_neighbor_discovery_option_type_t option_type;
- vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip6_icmp_input_node.index);
+ vlib_node_runtime_t *error_node =
+ vlib_node_get_runtime (vm, ip6_icmp_input_node.index);
from = vlib_frame_vector_args (frame);
n_left_from = n_packets;
next_index = node->cached_next_index;
-
+
if (node->flags & VLIB_NODE_FLAG_TRACE)
vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors,
/* stride */ 1,
while (n_left_from > 0)
{
vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-
+
while (n_left_from > 0 && n_left_to_next > 0)
{
- vlib_buffer_t * p0;
- ip6_header_t * ip0;
+ vlib_buffer_t *p0;
+ ip6_header_t *ip0;
ip6_radv_t *radv_info = 0;
- icmp6_neighbor_discovery_header_t * h0;
- icmp6_neighbor_discovery_ethernet_link_layer_address_option_t * o0;
-
+ icmp6_neighbor_discovery_header_t *h0;
+ icmp6_neighbor_discovery_ethernet_link_layer_address_option_t *o0;
+
u32 bi0, options_len0, sw_if_index0, next0, error0;
- u32 is_solicitation = 1, is_dropped = 0;
- u32 is_unspecified, is_link_local;
+ u32 is_solicitation = 1, is_dropped = 0;
+ u32 is_unspecified, is_link_local;
bi0 = to_next[0] = from[0];
to_next += 1;
n_left_from -= 1;
n_left_to_next -= 1;
-
+
p0 = vlib_get_buffer (vm, bi0);
ip0 = vlib_buffer_get_current (p0);
h0 = ip6_next_header (ip0);
- options_len0 = clib_net_to_host_u16 (ip0->payload_length) - sizeof (h0[0]);
- is_unspecified = ip6_address_is_unspecified (&ip0->src_address);
- is_link_local = ip6_address_is_link_local_unicast (&ip0->src_address);
+ options_len0 =
+ clib_net_to_host_u16 (ip0->payload_length) - sizeof (h0[0]);
+ is_unspecified = ip6_address_is_unspecified (&ip0->src_address);
+ is_link_local =
+ ip6_address_is_link_local_unicast (&ip0->src_address);
error0 = ICMP6_ERROR_NONE;
sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX];
-
+
/* check if solicitation (not from nd_timer node) */
if (ip6_address_is_unspecified (&ip0->dst_address))
is_solicitation = 0;
if (!is_unspecified && !is_link_local)
{
u32 src_adj_index0 = ip6_src_lookup_for_packet (im, p0, ip0);
- ip_adjacency_t * adj0 = ip_get_adjacency (&im->lookup_main, src_adj_index0);
- error0 = ((adj0->rewrite_header.sw_if_index != sw_if_index0
- || (adj0->lookup_next_index != IP_LOOKUP_NEXT_ARP
- && adj0->lookup_next_index != IP_LOOKUP_NEXT_REWRITE))
- ? ICMP6_ERROR_ROUTER_SOLICITATION_SOURCE_NOT_ON_LINK
- : error0);
- }
-
+ if (ADJ_INDEX_INVALID != src_adj_index0)
+ {
+ ip_adjacency_t *adj0 = ip_get_adjacency (&im->lookup_main,
+ src_adj_index0);
+
+ error0 = (adj0->rewrite_header.sw_if_index != sw_if_index0
+ ?
+ ICMP6_ERROR_ROUTER_SOLICITATION_SOURCE_NOT_ON_LINK
+ : error0);
+ }
+ else
+ {
+ error0 = ICMP6_ERROR_ROUTER_SOLICITATION_SOURCE_NOT_ON_LINK;
+ }
+ }
+
/* check for source LL option and process */
o0 = (void *) (h0 + 1);
o0 = ((options_len0 == 8
&& o0->header.type == option_type
- && o0->header.n_data_u64s == 1)
- ? o0
- : 0);
-
+ && o0->header.n_data_u64s == 1) ? o0 : 0);
+
/* if src address unspecified IGNORE any options */
- if (PREDICT_TRUE (error0 == ICMP6_ERROR_NONE && o0 != 0 &&
- !is_unspecified && !is_link_local)) {
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- if (nm->limit_neighbor_cache_size &&
- pool_elts (nm->neighbor_pool) >= nm->limit_neighbor_cache_size)
- unset_random_neighbor_entry();
-
- vnet_set_ip6_ethernet_neighbor (vm, sw_if_index0,
- &ip0->src_address,
- o0->ethernet_address,
- sizeof (o0->ethernet_address), 0);
- }
-
+ if (PREDICT_TRUE (error0 == ICMP6_ERROR_NONE && o0 != 0 &&
+ !is_unspecified && !is_link_local))
+ {
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ if (nm->limit_neighbor_cache_size &&
+ pool_elts (nm->neighbor_pool) >=
+ nm->limit_neighbor_cache_size)
+ unset_random_neighbor_entry ();
+
+ vnet_set_ip6_ethernet_neighbor (vm, sw_if_index0,
+ &ip0->src_address,
+ o0->ethernet_address,
+ sizeof (o0->ethernet_address),
+ 0);
+ }
+
/* default is to drop */
next0 = ICMP6_ROUTER_SOLICITATION_NEXT_DROP;
-
+
if (error0 == ICMP6_ERROR_NONE)
{
- vnet_sw_interface_t * sw_if0;
- ethernet_interface_t * eth_if0;
- u32 adj_index0;
+ vnet_sw_interface_t *sw_if0;
+ ethernet_interface_t *eth_if0;
+ u32 adj_index0;
sw_if0 = vnet_get_sup_sw_interface (vnm, sw_if_index0);
ASSERT (sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE);
- eth_if0 = ethernet_get_interface (ðernet_main, sw_if0->hw_if_index);
+ eth_if0 =
+ ethernet_get_interface (ðernet_main, sw_if0->hw_if_index);
/* only support ethernet interface type for now */
- error0 = (!eth_if0) ? ICMP6_ERROR_ROUTER_SOLICITATION_UNSUPPORTED_INTF : error0;
+ error0 =
+ (!eth_if0) ? ICMP6_ERROR_ROUTER_SOLICITATION_UNSUPPORTED_INTF
+ : error0;
if (error0 == ICMP6_ERROR_NONE)
{
u32 ri;
/* adjust the sizeof the buffer to just include the ipv6 header */
- p0->current_length -= (options_len0 + sizeof(icmp6_neighbor_discovery_header_t));
+ p0->current_length -=
+ (options_len0 +
+ sizeof (icmp6_neighbor_discovery_header_t));
/* look up the radv_t information for this interface */
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index0, ~0);
+ vec_validate_init_empty
+ (nm->if_radv_pool_index_by_sw_if_index, sw_if_index0, ~0);
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index0];
- if(ri != ~0)
- radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
-
- error0 = ((!radv_info) ? ICMP6_ERROR_ROUTER_SOLICITATION_RADV_NOT_CONFIG : error0);
+ if (ri != ~0)
+ radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
+
+ error0 =
+ ((!radv_info) ?
+ ICMP6_ERROR_ROUTER_SOLICITATION_RADV_NOT_CONFIG :
+ error0);
if (error0 == ICMP6_ERROR_NONE)
{
f64 now = vlib_time_now (vm);
/* for solicited adverts - need to rate limit */
- if(is_solicitation)
+ if (is_solicitation)
{
- if( (now - radv_info->last_radv_time) < MIN_DELAY_BETWEEN_RAS )
- is_dropped = 1;
+ if ((now - radv_info->last_radv_time) <
+ MIN_DELAY_BETWEEN_RAS)
+ is_dropped = 1;
else
radv_info->last_radv_time = now;
}
rh.icmp.type = ICMP6_router_advertisement;
rh.icmp.code = 0;
rh.icmp.checksum = 0;
-
- rh.current_hop_limit = radv_info->curr_hop_limit;
- rh.router_lifetime_in_sec = clib_host_to_net_u16(radv_info->adv_router_lifetime_in_sec);
- rh.time_in_msec_between_retransmitted_neighbor_solicitations =
- clib_host_to_net_u32(radv_info->adv_time_in_msec_between_retransmitted_neighbor_solicitations);
- rh.neighbor_reachable_time_in_msec =
- clib_host_to_net_u32(radv_info->adv_neighbor_reachable_time_in_msec);
-
- rh.flags = (radv_info->adv_managed_flag) ? ICMP6_ROUTER_DISCOVERY_FLAG_ADDRESS_CONFIG_VIA_DHCP : 0;
- rh.flags |= ( (radv_info->adv_other_flag) ? ICMP6_ROUTER_DISCOVERY_FLAG_OTHER_CONFIG_VIA_DHCP : 0);
-
- u16 payload_length = sizeof(icmp6_router_advertisement_header_t);
+ rh.current_hop_limit = radv_info->curr_hop_limit;
+ rh.router_lifetime_in_sec =
+ clib_host_to_net_u16
+ (radv_info->adv_router_lifetime_in_sec);
+ rh.
+ time_in_msec_between_retransmitted_neighbor_solicitations
+ =
+ clib_host_to_net_u32 (radv_info->
+ adv_time_in_msec_between_retransmitted_neighbor_solicitations);
+ rh.neighbor_reachable_time_in_msec =
+ clib_host_to_net_u32 (radv_info->
+ adv_neighbor_reachable_time_in_msec);
+
+ rh.flags =
+ (radv_info->adv_managed_flag) ?
+ ICMP6_ROUTER_DISCOVERY_FLAG_ADDRESS_CONFIG_VIA_DHCP :
+ 0;
+ rh.flags |=
+ ((radv_info->adv_other_flag) ?
+ ICMP6_ROUTER_DISCOVERY_FLAG_OTHER_CONFIG_VIA_DHCP :
+ 0);
+
+
+ u16 payload_length =
+ sizeof (icmp6_router_advertisement_header_t);
vlib_buffer_add_data (vm,
p0->free_list_index,
bi0,
- (void *)&rh, sizeof(icmp6_router_advertisement_header_t));
+ (void *) &rh,
+ sizeof
+ (icmp6_router_advertisement_header_t));
- if(radv_info->adv_link_layer_address)
+ if (radv_info->adv_link_layer_address)
{
- icmp6_neighbor_discovery_ethernet_link_layer_address_option_t h;
+ icmp6_neighbor_discovery_ethernet_link_layer_address_option_t
+ h;
- h.header.type = ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address;
+ h.header.type =
+ ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address;
h.header.n_data_u64s = 1;
/* copy ll address */
- clib_memcpy(&h.ethernet_address[0], eth_if0->address, 6);
+ clib_memcpy (&h.ethernet_address[0],
+ eth_if0->address, 6);
vlib_buffer_add_data (vm,
p0->free_list_index,
bi0,
- (void *)&h, sizeof(icmp6_neighbor_discovery_ethernet_link_layer_address_option_t));
+ (void *) &h,
+ sizeof
+ (icmp6_neighbor_discovery_ethernet_link_layer_address_option_t));
- payload_length += sizeof(icmp6_neighbor_discovery_ethernet_link_layer_address_option_t);
+ payload_length +=
+ sizeof
+ (icmp6_neighbor_discovery_ethernet_link_layer_address_option_t);
}
-
+
/* add MTU option */
- if(radv_info->adv_link_mtu)
+ if (radv_info->adv_link_mtu)
{
icmp6_neighbor_discovery_mtu_option_t h;
h.unused = 0;
- h.mtu = clib_host_to_net_u32(radv_info->adv_link_mtu);
+ h.mtu =
+ clib_host_to_net_u32 (radv_info->adv_link_mtu);
h.header.type = ICMP6_NEIGHBOR_DISCOVERY_OPTION_mtu;
h.header.n_data_u64s = 1;
-
- payload_length += sizeof( icmp6_neighbor_discovery_mtu_option_t);
+
+ payload_length +=
+ sizeof (icmp6_neighbor_discovery_mtu_option_t);
vlib_buffer_add_data (vm,
p0->free_list_index,
bi0,
- (void *)&h, sizeof(icmp6_neighbor_discovery_mtu_option_t));
+ (void *) &h,
+ sizeof
+ (icmp6_neighbor_discovery_mtu_option_t));
}
-
- /* add advertised prefix options */
- ip6_radv_prefix_t *pr_info;
-
- pool_foreach (pr_info, radv_info->adv_prefixes_pool, ({
-
- if(pr_info->enabled &&
- (!pr_info->decrement_lifetime_flag || (pr_info->pref_lifetime_expires >0)))
- {
- /* advertise this prefix */
- icmp6_neighbor_discovery_prefix_information_option_t h;
-
- h.header.type = ICMP6_NEIGHBOR_DISCOVERY_OPTION_prefix_information;
- h.header.n_data_u64s = (sizeof(icmp6_neighbor_discovery_prefix_information_option_t) >> 3);
-
- h.dst_address_length = pr_info->prefix_len;
-
- h.flags = (pr_info->adv_on_link_flag) ? ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_FLAG_ON_LINK : 0;
- h.flags |= (pr_info->adv_autonomous_flag) ? ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_AUTO : 0;
-
- if(radv_info->cease_radv && pr_info->deprecated_prefix_flag)
- {
- h.valid_time = clib_host_to_net_u32(MIN_ADV_VALID_LIFETIME);
- h.preferred_time = 0;
- }
- else
- {
- if(pr_info->decrement_lifetime_flag)
- {
- pr_info->adv_valid_lifetime_in_secs = ((pr_info->valid_lifetime_expires > now)) ?
- (pr_info->valid_lifetime_expires - now) : 0;
-
- pr_info->adv_pref_lifetime_in_secs = ((pr_info->pref_lifetime_expires > now)) ?
- (pr_info->pref_lifetime_expires - now) : 0;
- }
-
- h.valid_time = clib_host_to_net_u32(pr_info->adv_valid_lifetime_in_secs);
- h.preferred_time = clib_host_to_net_u32(pr_info->adv_pref_lifetime_in_secs) ;
- }
- h.unused = 0;
-
- clib_memcpy(&h.dst_address, &pr_info->prefix, sizeof(ip6_address_t));
- payload_length += sizeof( icmp6_neighbor_discovery_prefix_information_option_t);
-
- vlib_buffer_add_data (vm,
- p0->free_list_index,
- bi0,
- (void *)&h, sizeof(icmp6_neighbor_discovery_prefix_information_option_t));
-
- }
- }));
+ /* add advertised prefix options */
+ ip6_radv_prefix_t *pr_info;
+
+ /* *INDENT-OFF* */
+ pool_foreach (pr_info, radv_info->adv_prefixes_pool,
+ ({
+ if(pr_info->enabled &&
+ (!pr_info->decrement_lifetime_flag
+ || (pr_info->pref_lifetime_expires >0)))
+ {
+ /* advertise this prefix */
+ icmp6_neighbor_discovery_prefix_information_option_t h;
+
+ h.header.type = ICMP6_NEIGHBOR_DISCOVERY_OPTION_prefix_information;
+ h.header.n_data_u64s = (sizeof(icmp6_neighbor_discovery_prefix_information_option_t) >> 3);
+
+ h.dst_address_length = pr_info->prefix_len;
+
+ h.flags = (pr_info->adv_on_link_flag) ? ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_FLAG_ON_LINK : 0;
+ h.flags |= (pr_info->adv_autonomous_flag) ? ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_AUTO : 0;
+
+ if(radv_info->cease_radv && pr_info->deprecated_prefix_flag)
+ {
+ h.valid_time = clib_host_to_net_u32(MIN_ADV_VALID_LIFETIME);
+ h.preferred_time = 0;
+ }
+ else
+ {
+ if(pr_info->decrement_lifetime_flag)
+ {
+ pr_info->adv_valid_lifetime_in_secs = ((pr_info->valid_lifetime_expires > now)) ?
+ (pr_info->valid_lifetime_expires - now) : 0;
+
+ pr_info->adv_pref_lifetime_in_secs = ((pr_info->pref_lifetime_expires > now)) ?
+ (pr_info->pref_lifetime_expires - now) : 0;
+ }
+
+ h.valid_time = clib_host_to_net_u32(pr_info->adv_valid_lifetime_in_secs);
+ h.preferred_time = clib_host_to_net_u32(pr_info->adv_pref_lifetime_in_secs) ;
+ }
+ h.unused = 0;
+
+ clib_memcpy(&h.dst_address, &pr_info->prefix, sizeof(ip6_address_t));
+
+ payload_length += sizeof( icmp6_neighbor_discovery_prefix_information_option_t);
+
+ vlib_buffer_add_data (vm,
+ p0->free_list_index,
+ bi0,
+ (void *)&h, sizeof(icmp6_neighbor_discovery_prefix_information_option_t));
+
+ }
+ }));
+ /* *INDENT-ON* */
/* add additional options before here */
/* finish building the router advertisement... */
- if(!is_unspecified && radv_info->send_unicast)
+ if (!is_unspecified && radv_info->send_unicast)
{
ip0->dst_address = ip0->src_address;
}
else
- {
- /* target address is all-nodes mcast addr */
- ip6_set_reserved_multicast_address(&ip0->dst_address,
- IP6_MULTICAST_SCOPE_link_local,
- IP6_MULTICAST_GROUP_ID_all_hosts);
+ {
+ /* target address is all-nodes mcast addr */
+ ip6_set_reserved_multicast_address
+ (&ip0->dst_address,
+ IP6_MULTICAST_SCOPE_link_local,
+ IP6_MULTICAST_GROUP_ID_all_hosts);
}
-
+
/* source address MUST be the link-local address */
ip0->src_address = radv_info->link_local_address;
-
+
ip0->hop_limit = 255;
- ip0->payload_length = clib_host_to_net_u16 (payload_length);
-
- icmp6_router_advertisement_header_t * rh0 = (icmp6_router_advertisement_header_t *)(ip0 + 1);
- rh0->icmp.checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip0,
- &bogus_length);
- ASSERT(bogus_length == 0);
-
+ ip0->payload_length =
+ clib_host_to_net_u16 (payload_length);
+
+ icmp6_router_advertisement_header_t *rh0 =
+ (icmp6_router_advertisement_header_t *) (ip0 + 1);
+ rh0->icmp.checksum =
+ ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip0,
+ &bogus_length);
+ ASSERT (bogus_length == 0);
+
/* setup output if and adjacency */
- vnet_buffer (p0)->sw_if_index[VLIB_RX] =
+ vnet_buffer (p0)->sw_if_index[VLIB_RX] =
vnet_main.local_interface_sw_if_index;
-
- if (is_solicitation)
- {
- ethernet_header_t *eth0;
- /* Reuse current MAC header, copy SMAC to DMAC and
- * interface MAC to SMAC */
- vlib_buffer_reset (p0);
- eth0 = vlib_buffer_get_current(p0);
- clib_memcpy(eth0->dst_address, eth0->src_address, 6);
- clib_memcpy(eth0->src_address, eth_if0->address, 6);
- next0 = is_dropped ?
- next0 : ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX;
- vnet_buffer(p0)->sw_if_index[VLIB_TX] = sw_if_index0;
- }
- else
- {
- adj_index0 = radv_info->all_nodes_adj_index;
- if (adj_index0 == 0)
- error0 = ICMP6_ERROR_DST_LOOKUP_MISS;
- else
- {
- ip_adjacency_t * adj0 = ip_get_adjacency (&im->lookup_main, adj_index0);
- error0 =
- ((adj0->rewrite_header.sw_if_index != sw_if_index0
- || adj0->lookup_next_index != IP_LOOKUP_NEXT_REWRITE)
- ? ICMP6_ERROR_ROUTER_SOLICITATION_DEST_UNKNOWN
- : error0);
- next0 = is_dropped ?
- next0 : ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW;
- vnet_buffer (p0)->ip.adj_index[VLIB_RX] = adj_index0;
- }
- }
-
- radv_info->n_solicitations_dropped += is_dropped;
- radv_info->n_solicitations_rcvd += is_solicitation;
-
- if((error0 == ICMP6_ERROR_NONE) && !is_dropped)
+
+ if (is_solicitation)
+ {
+ ethernet_header_t *eth0;
+ /* Reuse current MAC header, copy SMAC to DMAC and
+ * interface MAC to SMAC */
+ vlib_buffer_reset (p0);
+ eth0 = vlib_buffer_get_current (p0);
+ clib_memcpy (eth0->dst_address, eth0->src_address,
+ 6);
+ clib_memcpy (eth0->src_address, eth_if0->address,
+ 6);
+ next0 =
+ is_dropped ? next0 :
+ ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX;
+ vnet_buffer (p0)->sw_if_index[VLIB_TX] =
+ sw_if_index0;
+ }
+ else
+ {
+ adj_index0 = radv_info->all_nodes_adj_index;
+ if (adj_index0 == 0)
+ error0 = ICMP6_ERROR_DST_LOOKUP_MISS;
+ else
+ {
+ ip_adjacency_t *adj0 =
+ ip_get_adjacency (&im->lookup_main,
+ adj_index0);
+ error0 =
+ ((adj0->rewrite_header.sw_if_index !=
+ sw_if_index0
+ || adj0->lookup_next_index !=
+ IP_LOOKUP_NEXT_REWRITE) ?
+ ICMP6_ERROR_ROUTER_SOLICITATION_DEST_UNKNOWN
+ : error0);
+ next0 =
+ is_dropped ? next0 :
+ ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW;
+ vnet_buffer (p0)->ip.adj_index[VLIB_TX] =
+ adj_index0;
+ }
+ }
+ p0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED;
+
+ radv_info->n_solicitations_dropped += is_dropped;
+ radv_info->n_solicitations_rcvd += is_solicitation;
+
+ if ((error0 == ICMP6_ERROR_NONE) && !is_dropped)
{
radv_info->n_advertisements_sent++;
n_advertisements_sent++;
p0->error = error_node->errors[error0];
- if(error0 != ICMP6_ERROR_NONE)
+ if (error0 != ICMP6_ERROR_NONE)
vlib_error_count (vm, error_node->node_index, error0, 1);
-
+
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
bi0, next0);
-
+
}
-
+
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
/* Account for router advertisements sent. */
- vlib_error_count (vm, error_node->node_index, ICMP6_ERROR_ROUTER_ADVERTISEMENTS_TX, n_advertisements_sent);
+ vlib_error_count (vm, error_node->node_index,
+ ICMP6_ERROR_ROUTER_ADVERTISEMENTS_TX,
+ n_advertisements_sent);
return frame->n_vectors;
}
/* validate advertised info for consistancy (see RFC-4861 section 6.2.7) - log any inconsistencies, packet will always be dropped */
static_always_inline uword
-icmp6_router_advertisement(vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+icmp6_router_advertisement (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- vnet_main_t * vnm = vnet_get_main();
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
+ vnet_main_t *vnm = vnet_get_main ();
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
uword n_packets = frame->n_vectors;
- u32 * from, * to_next;
+ u32 *from, *to_next;
u32 n_left_from, n_left_to_next, next_index;
u32 n_advertisements_rcvd = 0;
- vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip6_icmp_input_node.index);
+ vlib_node_runtime_t *error_node =
+ vlib_node_get_runtime (vm, ip6_icmp_input_node.index);
from = vlib_frame_vector_args (frame);
n_left_from = n_packets;
next_index = node->cached_next_index;
-
+
if (node->flags & VLIB_NODE_FLAG_TRACE)
vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors,
/* stride */ 1,
while (n_left_from > 0)
{
vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-
+
while (n_left_from > 0 && n_left_to_next > 0)
{
- vlib_buffer_t * p0;
- ip6_header_t * ip0;
+ vlib_buffer_t *p0;
+ ip6_header_t *ip0;
ip6_radv_t *radv_info = 0;
- icmp6_router_advertisement_header_t * h0;
+ icmp6_router_advertisement_header_t *h0;
u32 bi0, options_len0, sw_if_index0, next0, error0;
bi0 = to_next[0] = from[0];
to_next += 1;
n_left_from -= 1;
n_left_to_next -= 1;
-
+
p0 = vlib_get_buffer (vm, bi0);
ip0 = vlib_buffer_get_current (p0);
h0 = ip6_next_header (ip0);
- options_len0 = clib_net_to_host_u16 (ip0->payload_length) - sizeof (h0[0]);
+ options_len0 =
+ clib_net_to_host_u16 (ip0->payload_length) - sizeof (h0[0]);
error0 = ICMP6_ERROR_NONE;
sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX];
- /* Check that source address is link-local*/
- error0 = (!ip6_address_is_link_local_unicast (&ip0->src_address)) ?
+ /* Check that source address is link-local */
+ error0 = (!ip6_address_is_link_local_unicast (&ip0->src_address)) ?
ICMP6_ERROR_ROUTER_ADVERTISEMENT_SOURCE_NOT_LINK_LOCAL : error0;
/* default is to drop */
next0 = ICMP6_ROUTER_SOLICITATION_NEXT_DROP;
-
+
n_advertisements_rcvd++;
if (error0 == ICMP6_ERROR_NONE)
{
- vnet_sw_interface_t * sw_if0;
- ethernet_interface_t * eth_if0;
-
+ vnet_sw_interface_t *sw_if0;
+ ethernet_interface_t *eth_if0;
+
sw_if0 = vnet_get_sup_sw_interface (vnm, sw_if_index0);
ASSERT (sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE);
- eth_if0 = ethernet_get_interface (ðernet_main, sw_if0->hw_if_index);
+ eth_if0 =
+ ethernet_get_interface (ðernet_main, sw_if0->hw_if_index);
/* only support ethernet interface type for now */
- error0 = (!eth_if0) ? ICMP6_ERROR_ROUTER_SOLICITATION_UNSUPPORTED_INTF : error0;
+ error0 =
+ (!eth_if0) ? ICMP6_ERROR_ROUTER_SOLICITATION_UNSUPPORTED_INTF
+ : error0;
if (error0 == ICMP6_ERROR_NONE)
{
u32 ri;
/* look up the radv_t information for this interface */
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index0, ~0);
+ vec_validate_init_empty
+ (nm->if_radv_pool_index_by_sw_if_index, sw_if_index0, ~0);
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index0];
- if(ri != ~0)
- radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
-
- error0 = ((!radv_info) ? ICMP6_ERROR_ROUTER_SOLICITATION_RADV_NOT_CONFIG : error0);
+ if (ri != ~0)
+ radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
+
+ error0 =
+ ((!radv_info) ?
+ ICMP6_ERROR_ROUTER_SOLICITATION_RADV_NOT_CONFIG :
+ error0);
if (error0 == ICMP6_ERROR_NONE)
{
/* validate advertised information */
- if((h0->current_hop_limit && radv_info->curr_hop_limit) &&
- (h0->current_hop_limit != radv_info->curr_hop_limit))
+ if ((h0->current_hop_limit && radv_info->curr_hop_limit)
+ && (h0->current_hop_limit !=
+ radv_info->curr_hop_limit))
{
- ip6_neighbor_syslog(vm, LOG_WARNING,
- "our AdvCurHopLimit on %U doesn't agree with %U",
- format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address);
+ ip6_neighbor_syslog (vm, LOG_WARNING,
+ "our AdvCurHopLimit on %U doesn't agree with %U",
+ format_vnet_sw_if_index_name,
+ vnm, sw_if_index0,
+ format_ip6_address,
+ &ip0->src_address);
}
- if((h0->flags & ICMP6_ROUTER_DISCOVERY_FLAG_ADDRESS_CONFIG_VIA_DHCP) !=
- radv_info->adv_managed_flag)
+ if ((h0->flags &
+ ICMP6_ROUTER_DISCOVERY_FLAG_ADDRESS_CONFIG_VIA_DHCP)
+ != radv_info->adv_managed_flag)
{
- ip6_neighbor_syslog(vm, LOG_WARNING,
- "our AdvManagedFlag on %U doesn't agree with %U",
- format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address);
+ ip6_neighbor_syslog (vm, LOG_WARNING,
+ "our AdvManagedFlag on %U doesn't agree with %U",
+ format_vnet_sw_if_index_name,
+ vnm, sw_if_index0,
+ format_ip6_address,
+ &ip0->src_address);
}
- if((h0->flags & ICMP6_ROUTER_DISCOVERY_FLAG_OTHER_CONFIG_VIA_DHCP) !=
- radv_info->adv_other_flag)
+ if ((h0->flags &
+ ICMP6_ROUTER_DISCOVERY_FLAG_OTHER_CONFIG_VIA_DHCP)
+ != radv_info->adv_other_flag)
{
- ip6_neighbor_syslog(vm, LOG_WARNING,
- "our AdvOtherConfigFlag on %U doesn't agree with %U",
- format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address);
+ ip6_neighbor_syslog (vm, LOG_WARNING,
+ "our AdvOtherConfigFlag on %U doesn't agree with %U",
+ format_vnet_sw_if_index_name,
+ vnm, sw_if_index0,
+ format_ip6_address,
+ &ip0->src_address);
}
- if((h0->time_in_msec_between_retransmitted_neighbor_solicitations &&
- radv_info->adv_time_in_msec_between_retransmitted_neighbor_solicitations) &&
- (h0->time_in_msec_between_retransmitted_neighbor_solicitations !=
- clib_host_to_net_u32(radv_info->adv_time_in_msec_between_retransmitted_neighbor_solicitations)))
+ if ((h0->
+ time_in_msec_between_retransmitted_neighbor_solicitations
+ && radv_info->
+ adv_time_in_msec_between_retransmitted_neighbor_solicitations)
+ && (h0->
+ time_in_msec_between_retransmitted_neighbor_solicitations
+ !=
+ clib_host_to_net_u32 (radv_info->
+ adv_time_in_msec_between_retransmitted_neighbor_solicitations)))
{
- ip6_neighbor_syslog(vm, LOG_WARNING,
- "our AdvRetransTimer on %U doesn't agree with %U",
- format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address);
+ ip6_neighbor_syslog (vm, LOG_WARNING,
+ "our AdvRetransTimer on %U doesn't agree with %U",
+ format_vnet_sw_if_index_name,
+ vnm, sw_if_index0,
+ format_ip6_address,
+ &ip0->src_address);
}
- if((h0->neighbor_reachable_time_in_msec &&
- radv_info->adv_neighbor_reachable_time_in_msec) &&
- (h0->neighbor_reachable_time_in_msec !=
- clib_host_to_net_u32(radv_info->adv_neighbor_reachable_time_in_msec)))
+ if ((h0->neighbor_reachable_time_in_msec &&
+ radv_info->adv_neighbor_reachable_time_in_msec) &&
+ (h0->neighbor_reachable_time_in_msec !=
+ clib_host_to_net_u32
+ (radv_info->adv_neighbor_reachable_time_in_msec)))
{
- ip6_neighbor_syslog(vm, LOG_WARNING,
- "our AdvReachableTime on %U doesn't agree with %U",
- format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address);
+ ip6_neighbor_syslog (vm, LOG_WARNING,
+ "our AdvReachableTime on %U doesn't agree with %U",
+ format_vnet_sw_if_index_name,
+ vnm, sw_if_index0,
+ format_ip6_address,
+ &ip0->src_address);
}
/* check for MTU or prefix options or .. */
- u8 * opt_hdr = (u8 *)(h0 + 1);
- while( options_len0 > 0)
+ u8 *opt_hdr = (u8 *) (h0 + 1);
+ while (options_len0 > 0)
{
- icmp6_neighbor_discovery_option_header_t *o0 = ( icmp6_neighbor_discovery_option_header_t *)opt_hdr;
+ icmp6_neighbor_discovery_option_header_t *o0 =
+ (icmp6_neighbor_discovery_option_header_t *)
+ opt_hdr;
int opt_len = o0->n_data_u64s << 3;
- icmp6_neighbor_discovery_option_type_t option_type = o0->type;
+ icmp6_neighbor_discovery_option_type_t option_type =
+ o0->type;
- if(options_len0 < 2)
+ if (options_len0 < 2)
{
- ip6_neighbor_syslog(vm, LOG_ERR,
- "malformed RA packet on %U from %U",
- format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address);
+ ip6_neighbor_syslog (vm, LOG_ERR,
+ "malformed RA packet on %U from %U",
+ format_vnet_sw_if_index_name,
+ vnm, sw_if_index0,
+ format_ip6_address,
+ &ip0->src_address);
break;
}
- if(opt_len == 0)
+ if (opt_len == 0)
{
- ip6_neighbor_syslog(vm, LOG_ERR,
- " zero length option in RA on %U from %U",
- format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address);
+ ip6_neighbor_syslog (vm, LOG_ERR,
+ " zero length option in RA on %U from %U",
+ format_vnet_sw_if_index_name,
+ vnm, sw_if_index0,
+ format_ip6_address,
+ &ip0->src_address);
break;
}
- else if( opt_len > options_len0)
+ else if (opt_len > options_len0)
{
- ip6_neighbor_syslog(vm, LOG_ERR,
- "option length in RA packet greater than total length on %U from %U",
- format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address);
+ ip6_neighbor_syslog (vm, LOG_ERR,
+ "option length in RA packet greater than total length on %U from %U",
+ format_vnet_sw_if_index_name,
+ vnm, sw_if_index0,
+ format_ip6_address,
+ &ip0->src_address);
break;
}
options_len0 -= opt_len;
opt_hdr += opt_len;
- switch(option_type)
+ switch (option_type)
{
case ICMP6_NEIGHBOR_DISCOVERY_OPTION_mtu:
- {
+ {
icmp6_neighbor_discovery_mtu_option_t *h =
- (icmp6_neighbor_discovery_mtu_option_t *)(o0);
+ (icmp6_neighbor_discovery_mtu_option_t
+ *) (o0);
- if(opt_len < sizeof(*h))
+ if (opt_len < sizeof (*h))
break;
- if((h->mtu && radv_info->adv_link_mtu) &&
- (h->mtu != clib_host_to_net_u32(radv_info->adv_link_mtu)))
+ if ((h->mtu && radv_info->adv_link_mtu) &&
+ (h->mtu !=
+ clib_host_to_net_u32
+ (radv_info->adv_link_mtu)))
{
- ip6_neighbor_syslog(vm, LOG_WARNING,
- "our AdvLinkMTU on %U doesn't agree with %U",
- format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address);
+ ip6_neighbor_syslog (vm, LOG_WARNING,
+ "our AdvLinkMTU on %U doesn't agree with %U",
+ format_vnet_sw_if_index_name,
+ vnm, sw_if_index0,
+ format_ip6_address,
+ &ip0->src_address);
}
}
break;
-
+
case ICMP6_NEIGHBOR_DISCOVERY_OPTION_prefix_information:
{
- icmp6_neighbor_discovery_prefix_information_option_t *h =
- (icmp6_neighbor_discovery_prefix_information_option_t *)(o0);
-
+ icmp6_neighbor_discovery_prefix_information_option_t
+ * h =
+ (icmp6_neighbor_discovery_prefix_information_option_t
+ *) (o0);
+
/* validate advertised prefix options */
- ip6_radv_prefix_t *pr_info;
+ ip6_radv_prefix_t *pr_info;
u32 preferred, valid;
- if(opt_len < sizeof(*h))
+ if (opt_len < sizeof (*h))
break;
- preferred = clib_net_to_host_u32(h->preferred_time);
- valid = clib_net_to_host_u32(h->valid_time);
+ preferred =
+ clib_net_to_host_u32 (h->preferred_time);
+ valid = clib_net_to_host_u32 (h->valid_time);
/* look for matching prefix - if we our advertising it, it better be consistant */
- pool_foreach (pr_info, radv_info->adv_prefixes_pool, ({
-
- ip6_address_t mask;
- ip6_address_mask_from_width(&mask, pr_info->prefix_len);
-
- if(pr_info->enabled &&
- (pr_info->prefix_len == h->dst_address_length) &&
- ip6_address_is_equal_masked (&pr_info->prefix, &h->dst_address, &mask))
- {
- /* found it */
- if(!pr_info->decrement_lifetime_flag &&
- valid != pr_info->adv_valid_lifetime_in_secs)
- {
- ip6_neighbor_syslog(vm, LOG_WARNING,
- "our ADV validlifetime on %U for %U does not agree with %U",
- format_vnet_sw_if_index_name, vnm, sw_if_index0,format_ip6_address, &pr_info->prefix,
- format_ip6_address, &h->dst_address);
- }
- if(!pr_info->decrement_lifetime_flag &&
- preferred != pr_info->adv_pref_lifetime_in_secs)
- {
- ip6_neighbor_syslog(vm, LOG_WARNING,
- "our ADV preferredlifetime on %U for %U does not agree with %U",
- format_vnet_sw_if_index_name, vnm, sw_if_index0,format_ip6_address, &pr_info->prefix,
- format_ip6_address, &h->dst_address);
- }
- }
- break;
- }));
+ /* *INDENT-OFF* */
+ pool_foreach (pr_info, radv_info->adv_prefixes_pool,
+ ({
+
+ ip6_address_t mask;
+ ip6_address_mask_from_width(&mask, pr_info->prefix_len);
+
+ if(pr_info->enabled &&
+ (pr_info->prefix_len == h->dst_address_length) &&
+ ip6_address_is_equal_masked (&pr_info->prefix, &h->dst_address, &mask))
+ {
+ /* found it */
+ if(!pr_info->decrement_lifetime_flag &&
+ valid != pr_info->adv_valid_lifetime_in_secs)
+ {
+ ip6_neighbor_syslog(vm, LOG_WARNING,
+ "our ADV validlifetime on %U for %U does not agree with %U",
+ format_vnet_sw_if_index_name, vnm, sw_if_index0,format_ip6_address, &pr_info->prefix,
+ format_ip6_address, &h->dst_address);
+ }
+ if(!pr_info->decrement_lifetime_flag &&
+ preferred != pr_info->adv_pref_lifetime_in_secs)
+ {
+ ip6_neighbor_syslog(vm, LOG_WARNING,
+ "our ADV preferredlifetime on %U for %U does not agree with %U",
+ format_vnet_sw_if_index_name, vnm, sw_if_index0,format_ip6_address, &pr_info->prefix,
+ format_ip6_address, &h->dst_address);
+ }
+ }
+ break;
+ }));
+ /* *INDENT-ON* */
break;
}
default:
p0->error = error_node->errors[error0];
- if(error0 != ICMP6_ERROR_NONE)
+ if (error0 != ICMP6_ERROR_NONE)
vlib_error_count (vm, error_node->node_index, error0, 1);
-
+
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
bi0, next0);
}
-
+
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
/* Account for router advertisements sent. */
- vlib_error_count (vm, error_node->node_index, ICMP6_ERROR_ROUTER_ADVERTISEMENTS_RX, n_advertisements_rcvd);
+ vlib_error_count (vm, error_node->node_index,
+ ICMP6_ERROR_ROUTER_ADVERTISEMENTS_RX,
+ n_advertisements_rcvd);
return frame->n_vectors;
}
/* create and initialize router advertisement parameters with default values for this intfc */
static u32
ip6_neighbor_sw_interface_add_del (vnet_main_t * vnm,
- u32 sw_if_index,
- u32 is_add)
+ u32 sw_if_index, u32 is_add)
{
- ip6_main_t * im = &ip6_main;
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- ip_lookup_main_t * lm = &im->lookup_main;
- ip6_radv_t * a= 0;
- u32 ri = ~0;;
- vnet_sw_interface_t * sw_if0;
- ethernet_interface_t * eth_if0 = 0;
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ ip6_radv_t *a = 0;
+ u32 ri = ~0;
+ vnet_sw_interface_t *sw_if0;
+ ethernet_interface_t *eth_if0 = 0;
/* lookup radv container - ethernet interfaces only */
sw_if0 = vnet_get_sup_sw_interface (vnm, sw_if_index);
- if(sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
+ if (sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
eth_if0 = ethernet_get_interface (ðernet_main, sw_if0->hw_if_index);
- if(!eth_if0)
+ if (!eth_if0)
return ri;
-
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0);
+
+ vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index,
+ ~0);
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
- if(ri != ~0)
+ if (ri != ~0)
{
a = pool_elt_at_index (nm->if_radv_pool, ri);
- if(!is_add)
+ if (!is_add)
{
- u32 i, * to_delete = 0;
- ip6_radv_prefix_t *p;
+ u32 i, *to_delete = 0;
+ ip6_radv_prefix_t *p;
ip6_mldp_group_t *m;
-
+
/* remove adjacencies */
- ip_del_adjacency (lm, a->all_nodes_adj_index);
- ip_del_adjacency (lm, a->all_routers_adj_index);
- ip_del_adjacency (lm, a->all_mldv2_routers_adj_index);
-
+ adj_unlock (a->all_nodes_adj_index);
+ adj_unlock (a->all_routers_adj_index);
+ adj_unlock (a->all_mldv2_routers_adj_index);
+
/* clean up prefix_pool */
- pool_foreach (p, a->adv_prefixes_pool, ({
- vec_add1 (to_delete, p - a->adv_prefixes_pool);
- }));
-
+ /* *INDENT-OFF* */
+ pool_foreach (p, a->adv_prefixes_pool,
+ ({
+ vec_add1 (to_delete, p - a->adv_prefixes_pool);
+ }));
+ /* *INDENT-ON* */
+
for (i = 0; i < vec_len (to_delete); i++)
{
p = pool_elt_at_index (a->adv_prefixes_pool, to_delete[i]);
mhash_unset (&a->address_to_prefix_index, &p->prefix, 0);
pool_put (a->adv_prefixes_pool, p);
}
-
+
vec_free (to_delete);
to_delete = 0;
-
+
/* clean up mldp group pool */
- pool_foreach (m, a->mldp_group_pool, ({
- vec_add1 (to_delete, m - a->mldp_group_pool);
- }));
-
+ /* *INDENT-OFF* */
+ pool_foreach (m, a->mldp_group_pool,
+ ({
+ vec_add1 (to_delete, m - a->mldp_group_pool);
+ }));
+ /* *INDENT-ON* */
+
for (i = 0; i < vec_len (to_delete); i++)
{
m = pool_elt_at_index (a->mldp_group_pool, to_delete[i]);
mhash_unset (&a->address_to_mldp_index, &m->mcast_address, 0);
pool_put (a->mldp_group_pool, m);
}
-
+
vec_free (to_delete);
-
- pool_put (nm->if_radv_pool, a);
+
+ pool_put (nm->if_radv_pool, a);
nm->if_radv_pool_index_by_sw_if_index[sw_if_index] = ~0;
ri = ~0;
}
}
- else
- {
- if(is_add)
- {
- vnet_hw_interface_t * hw_if0;
-
- hw_if0 = vnet_get_sup_hw_interface (vnm, sw_if_index);
-
- pool_get (nm->if_radv_pool, a);
-
- ri = a - nm->if_radv_pool;
- nm->if_radv_pool_index_by_sw_if_index[sw_if_index] = ri;
-
- /* initialize default values (most of which are zero) */
- memset (a, 0, sizeof (a[0]));
-
- a->sw_if_index = sw_if_index;
- a->fib_index = ~0;
- a->max_radv_interval = DEF_MAX_RADV_INTERVAL;
- a->min_radv_interval = DEF_MIN_RADV_INTERVAL;
- a->curr_hop_limit = DEF_CURR_HOP_LIMIT;
- a->adv_router_lifetime_in_sec = DEF_DEF_RTR_LIFETIME;
-
- a->adv_link_layer_address = 1; /* send ll address source address option */
-
- a->min_delay_between_radv = MIN_DELAY_BETWEEN_RAS;
- a->max_delay_between_radv = MAX_DELAY_BETWEEN_RAS;
- a->max_rtr_default_lifetime = MAX_DEF_RTR_LIFETIME;
- a->seed = random_default_seed();
-
- /* for generating random interface ids */
- a->randomizer = 0x1119194911191949;
- a->randomizer = random_u64 ((u32 *)&a->randomizer);
-
- a->initial_adverts_count = MAX_INITIAL_RTR_ADVERTISEMENTS ;
- a->initial_adverts_sent = a->initial_adverts_count-1;
- a->initial_adverts_interval = MAX_INITIAL_RTR_ADVERT_INTERVAL;
-
- /* deafult is to send */
- a->send_radv = 1;
-
- /* fill in radv_info for this interface that will be needed later */
- a->adv_link_mtu = hw_if0->max_l3_packet_bytes[VLIB_RX];
-
- clib_memcpy (a->link_layer_address, eth_if0->address, 6);
-
- /* fill in default link-local address (this may be overridden) */
- ip6_link_local_address_from_ethernet_address (&a->link_local_address, eth_if0->address);
- a->link_local_prefix_len = 64;
-
- mhash_init (&a->address_to_prefix_index, sizeof (uword), sizeof (ip6_address_t));
- mhash_init (&a->address_to_mldp_index, sizeof (uword), sizeof (ip6_address_t));
-
- {
- ip_adjacency_t *adj;
- u8 link_layer_address[6] =
- {0x33, 0x33, 0x00, 0x00, 0x00, IP6_MULTICAST_GROUP_ID_all_hosts};
-
- adj = ip_add_adjacency (lm, /* template */ 0, /* block size */ 1,
- &a->all_nodes_adj_index);
-
- adj->lookup_next_index = IP_LOOKUP_NEXT_REWRITE;
- adj->if_address_index = ~0;
-
- vnet_rewrite_for_sw_interface
- (vnm,
- VNET_L3_PACKET_TYPE_IP6,
- sw_if_index,
- ip6_rewrite_node.index,
- link_layer_address,
- &adj->rewrite_header,
- sizeof (adj->rewrite_data));
- }
-
- {
- ip_adjacency_t *adj;
- u8 link_layer_address[6] =
- {0x33, 0x33, 0x00, 0x00, 0x00, IP6_MULTICAST_GROUP_ID_all_routers};
-
- adj = ip_add_adjacency (lm, /* template */ 0, /* block size */ 1,
- &a->all_routers_adj_index);
-
- adj->lookup_next_index = IP_LOOKUP_NEXT_REWRITE;
- adj->if_address_index = ~0;
-
- vnet_rewrite_for_sw_interface
- (vnm,
- VNET_L3_PACKET_TYPE_IP6,
- sw_if_index,
- ip6_rewrite_node.index,
- link_layer_address,
- &adj->rewrite_header,
- sizeof (adj->rewrite_data));
- }
-
- {
- ip_adjacency_t *adj;
- u8 link_layer_address[6] =
- {0x33, 0x33, 0x00, 0x00, 0x00, IP6_MULTICAST_GROUP_ID_mldv2_routers};
-
- adj = ip_add_adjacency (lm, /* template */ 0, /* block size */ 1,
- &a->all_mldv2_routers_adj_index);
-
- adj->lookup_next_index = IP_LOOKUP_NEXT_REWRITE;
- adj->if_address_index = ~0;
-
- vnet_rewrite_for_sw_interface
- (vnm,
- VNET_L3_PACKET_TYPE_IP6,
- sw_if_index,
- ip6_rewrite_node.index,
- link_layer_address,
- &adj->rewrite_header,
- sizeof (adj->rewrite_data));
- }
-
- /* add multicast groups we will always be reporting */
- ip6_address_t addr;
- ip6_mldp_group_t *mcast_group_info;
-
- ip6_set_reserved_multicast_address (&addr,
- IP6_MULTICAST_SCOPE_link_local,
- IP6_MULTICAST_GROUP_ID_all_hosts);
-
- /* lookup mldp info for this interface */
-
- uword * p = mhash_get (&a->address_to_mldp_index, &addr);
- mcast_group_info = p ? pool_elt_at_index (a->mldp_group_pool, p[0]) : 0;
-
- /* add address */
- if(!mcast_group_info)
- {
- /* add */
- u32 mi;
- pool_get (a->mldp_group_pool, mcast_group_info);
-
- mi = mcast_group_info - a->mldp_group_pool;
- mhash_set (&a->address_to_mldp_index, &addr, mi, /* old_value */ 0);
-
- mcast_group_info->type = 4;
- mcast_group_info->mcast_source_address_pool = 0;
- mcast_group_info->num_sources = 0;
- clib_memcpy(&mcast_group_info->mcast_address, &addr, sizeof(ip6_address_t));
- }
-
- ip6_set_reserved_multicast_address (&addr,
- IP6_MULTICAST_SCOPE_link_local,
- IP6_MULTICAST_GROUP_ID_all_routers);
-
- p = mhash_get (&a->address_to_mldp_index, &addr);
- mcast_group_info = p ? pool_elt_at_index (a->mldp_group_pool, p[0]) : 0;
-
- if(!mcast_group_info)
- {
- /* add */
- u32 mi;
- pool_get (a->mldp_group_pool, mcast_group_info);
-
- mi = mcast_group_info - a->mldp_group_pool;
- mhash_set (&a->address_to_mldp_index, &addr, mi, /* old_value */ 0);
-
- mcast_group_info->type = 4;
- mcast_group_info->mcast_source_address_pool = 0;
- mcast_group_info->num_sources = 0;
- clib_memcpy(&mcast_group_info->mcast_address, &addr, sizeof(ip6_address_t));
- }
-
- ip6_set_reserved_multicast_address (&addr,
- IP6_MULTICAST_SCOPE_link_local,
- IP6_MULTICAST_GROUP_ID_mldv2_routers);
-
- p = mhash_get (&a->address_to_mldp_index, &addr);
- mcast_group_info = p ? pool_elt_at_index (a->mldp_group_pool, p[0]) : 0;
-
- if(!mcast_group_info)
- {
- /* add */
- u32 mi;
- pool_get (a->mldp_group_pool, mcast_group_info);
-
- mi = mcast_group_info - a->mldp_group_pool;
- mhash_set (&a->address_to_mldp_index, &addr, mi, /* old_value */ 0);
-
- mcast_group_info->type = 4;
- mcast_group_info->mcast_source_address_pool = 0;
- mcast_group_info->num_sources = 0;
- clib_memcpy(&mcast_group_info->mcast_address, &addr, sizeof(ip6_address_t));
- }
- }
- }
- return ri;
+ else
+ {
+ if (is_add)
+ {
+ vnet_hw_interface_t *hw_if0;
+
+ hw_if0 = vnet_get_sup_hw_interface (vnm, sw_if_index);
+
+ pool_get (nm->if_radv_pool, a);
+
+ ri = a - nm->if_radv_pool;
+ nm->if_radv_pool_index_by_sw_if_index[sw_if_index] = ri;
+
+ /* initialize default values (most of which are zero) */
+ memset (a, 0, sizeof (a[0]));
+
+ a->sw_if_index = sw_if_index;
+ a->fib_index = ~0;
+ a->max_radv_interval = DEF_MAX_RADV_INTERVAL;
+ a->min_radv_interval = DEF_MIN_RADV_INTERVAL;
+ a->curr_hop_limit = DEF_CURR_HOP_LIMIT;
+ a->adv_router_lifetime_in_sec = DEF_DEF_RTR_LIFETIME;
+
+ a->adv_link_layer_address = 1; /* send ll address source address option */
+
+ a->min_delay_between_radv = MIN_DELAY_BETWEEN_RAS;
+ a->max_delay_between_radv = MAX_DELAY_BETWEEN_RAS;
+ a->max_rtr_default_lifetime = MAX_DEF_RTR_LIFETIME;
+ a->seed = (u32) clib_cpu_time_now ();
+ (void) random_u32 (&a->seed);
+ a->randomizer = clib_cpu_time_now ();
+ (void) random_u64 (&a->randomizer);
+
+ a->initial_adverts_count = MAX_INITIAL_RTR_ADVERTISEMENTS;
+ a->initial_adverts_sent = a->initial_adverts_count - 1;
+ a->initial_adverts_interval = MAX_INITIAL_RTR_ADVERT_INTERVAL;
+
+ /* deafult is to send */
+ a->send_radv = 1;
+
+ /* fill in radv_info for this interface that will be needed later */
+ a->adv_link_mtu = hw_if0->max_l3_packet_bytes[VLIB_RX];
+
+ clib_memcpy (a->link_layer_address, eth_if0->address, 6);
+
+ /* fill in default link-local address (this may be overridden) */
+ ip6_link_local_address_from_ethernet_address
+ (&a->link_local_address, eth_if0->address);
+ a->link_local_prefix_len = 64;
+
+ mhash_init (&a->address_to_prefix_index, sizeof (uword),
+ sizeof (ip6_address_t));
+ mhash_init (&a->address_to_mldp_index, sizeof (uword),
+ sizeof (ip6_address_t));
+
+ {
+ u8 link_layer_address[6] = { 0x33, 0x33, 0x00, 0x00, 0x00,
+ IP6_MULTICAST_GROUP_ID_all_hosts
+ };
+
+ a->all_nodes_adj_index =
+ adj_rewrite_add_and_lock (FIB_PROTOCOL_IP6, VNET_LINK_IP6,
+ sw_if_index, link_layer_address);
+ }
+
+ {
+ u8 link_layer_address[6] = { 0x33, 0x33, 0x00, 0x00, 0x00,
+ IP6_MULTICAST_GROUP_ID_all_routers
+ };
+
+ a->all_routers_adj_index =
+ adj_rewrite_add_and_lock (FIB_PROTOCOL_IP6, VNET_LINK_IP6,
+ sw_if_index, link_layer_address);
+ }
+
+ {
+ u8 link_layer_address[6] = { 0x33, 0x33, 0x00, 0x00, 0x00,
+ IP6_MULTICAST_GROUP_ID_mldv2_routers
+ };
+
+ a->all_mldv2_routers_adj_index =
+ adj_rewrite_add_and_lock (FIB_PROTOCOL_IP6,
+ VNET_LINK_IP6,
+ sw_if_index, link_layer_address);
+ }
+
+ /* add multicast groups we will always be reporting */
+ ip6_address_t addr;
+ ip6_mldp_group_t *mcast_group_info;
+
+ ip6_set_reserved_multicast_address (&addr,
+ IP6_MULTICAST_SCOPE_link_local,
+ IP6_MULTICAST_GROUP_ID_all_hosts);
+
+ /* lookup mldp info for this interface */
+
+ uword *p = mhash_get (&a->address_to_mldp_index, &addr);
+ mcast_group_info =
+ p ? pool_elt_at_index (a->mldp_group_pool, p[0]) : 0;
+
+ /* add address */
+ if (!mcast_group_info)
+ {
+ /* add */
+ u32 mi;
+ pool_get (a->mldp_group_pool, mcast_group_info);
+
+ mi = mcast_group_info - a->mldp_group_pool;
+ mhash_set (&a->address_to_mldp_index, &addr, mi, /* old_value */
+ 0);
+
+ mcast_group_info->type = 4;
+ mcast_group_info->mcast_source_address_pool = 0;
+ mcast_group_info->num_sources = 0;
+ clib_memcpy (&mcast_group_info->mcast_address, &addr,
+ sizeof (ip6_address_t));
+ }
+
+ ip6_set_reserved_multicast_address (&addr,
+ IP6_MULTICAST_SCOPE_link_local,
+ IP6_MULTICAST_GROUP_ID_all_routers);
+
+ p = mhash_get (&a->address_to_mldp_index, &addr);
+ mcast_group_info =
+ p ? pool_elt_at_index (a->mldp_group_pool, p[0]) : 0;
+
+ if (!mcast_group_info)
+ {
+ /* add */
+ u32 mi;
+ pool_get (a->mldp_group_pool, mcast_group_info);
+
+ mi = mcast_group_info - a->mldp_group_pool;
+ mhash_set (&a->address_to_mldp_index, &addr, mi, /* old_value */
+ 0);
+
+ mcast_group_info->type = 4;
+ mcast_group_info->mcast_source_address_pool = 0;
+ mcast_group_info->num_sources = 0;
+ clib_memcpy (&mcast_group_info->mcast_address, &addr,
+ sizeof (ip6_address_t));
+ }
+
+ ip6_set_reserved_multicast_address (&addr,
+ IP6_MULTICAST_SCOPE_link_local,
+ IP6_MULTICAST_GROUP_ID_mldv2_routers);
+
+ p = mhash_get (&a->address_to_mldp_index, &addr);
+ mcast_group_info =
+ p ? pool_elt_at_index (a->mldp_group_pool, p[0]) : 0;
+
+ if (!mcast_group_info)
+ {
+ /* add */
+ u32 mi;
+ pool_get (a->mldp_group_pool, mcast_group_info);
+
+ mi = mcast_group_info - a->mldp_group_pool;
+ mhash_set (&a->address_to_mldp_index, &addr, mi, /* old_value */
+ 0);
+
+ mcast_group_info->type = 4;
+ mcast_group_info->mcast_source_address_pool = 0;
+ mcast_group_info->num_sources = 0;
+ clib_memcpy (&mcast_group_info->mcast_address, &addr,
+ sizeof (ip6_address_t));
+ }
+ }
+ }
+ return ri;
}
/* send an mldpv2 report */
static void
-ip6_neighbor_send_mldpv2_report(u32 sw_if_index)
+ip6_neighbor_send_mldpv2_report (u32 sw_if_index)
{
- vnet_main_t * vnm = vnet_get_main();
- vlib_main_t * vm = vnm->vlib_main;
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- vnet_sw_interface_t * sw_if0;
- ethernet_interface_t * eth_if0;
+ vnet_main_t *vnm = vnet_get_main ();
+ vlib_main_t *vm = vnm->vlib_main;
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ vnet_sw_interface_t *sw_if0;
+ ethernet_interface_t *eth_if0;
u32 ri;
int bogus_length;
- ip6_radv_t *radv_info;
+ ip6_radv_t *radv_info;
u16 payload_length;
- vlib_buffer_t * b0;
- ip6_header_t * ip0;
- u32 * to_next;
- vlib_frame_t * f;
+ vlib_buffer_t *b0;
+ ip6_header_t *ip0;
+ u32 *to_next;
+ vlib_frame_t *f;
u32 bo0;
u32 n_to_alloc = 1;
u32 n_allocated;
-
+
icmp6_multicast_listener_report_header_t *rh0;
icmp6_multicast_listener_report_packet_t *rp0;
return;
/* look up the radv_t information for this interface */
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0);
-
+ vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index,
+ ~0);
+
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
-
- if(ri == ~0)
+
+ if (ri == ~0)
return;
-
+
/* send report now - build a mldpv2 report packet */
- n_allocated = vlib_buffer_alloc_from_free_list(vm,
- &bo0,
- n_to_alloc,
- VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
- if (PREDICT_FALSE(n_allocated == 0))
+ n_allocated = vlib_buffer_alloc_from_free_list (vm,
+ &bo0,
+ n_to_alloc,
+ VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
+ if (PREDICT_FALSE (n_allocated == 0))
{
clib_warning ("buffer allocation failure");
return;
b0 = vlib_get_buffer (vm, bo0);
/* adjust the sizeof the buffer to just include the ipv6 header */
- b0->current_length = sizeof(icmp6_multicast_listener_report_packet_t);
+ b0->current_length = sizeof (icmp6_multicast_listener_report_packet_t);
- payload_length = sizeof(icmp6_multicast_listener_report_header_t);
+ payload_length = sizeof (icmp6_multicast_listener_report_header_t);
b0->error = ICMP6_ERROR_NONE;
rp0 = vlib_buffer_get_current (b0);
- ip0 = (ip6_header_t *)&rp0-> ip;
- rh0 = (icmp6_multicast_listener_report_header_t *)&rp0-> report_hdr;
-
- memset (rp0 , 0x0, sizeof (icmp6_multicast_listener_report_packet_t));
-
- ip0->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (0x6 << 28);
-
- ip0->protocol = IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS;
+ ip0 = (ip6_header_t *) & rp0->ip;
+ rh0 = (icmp6_multicast_listener_report_header_t *) & rp0->report_hdr;
+
+ memset (rp0, 0x0, sizeof (icmp6_multicast_listener_report_packet_t));
+
+ ip0->ip_version_traffic_class_and_flow_label =
+ clib_host_to_net_u32 (0x6 << 28);
+
+ ip0->protocol = IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS;
/* for DEBUG - vnet driver won't seem to emit router alerts */
/* ip0->protocol = IP_PROTOCOL_ICMP6; */
ip0->hop_limit = 1;
-
+
rh0->icmp.type = ICMP6_multicast_listener_report_v2;
-
+
/* source address MUST be the link-local address */
- radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
- ip0->src_address = radv_info->link_local_address;
+ radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
+ ip0->src_address = radv_info->link_local_address;
/* destination is all mldpv2 routers */
- ip6_set_reserved_multicast_address(&ip0->dst_address,
- IP6_MULTICAST_SCOPE_link_local,
- IP6_MULTICAST_GROUP_ID_mldv2_routers);
-
+ ip6_set_reserved_multicast_address (&ip0->dst_address,
+ IP6_MULTICAST_SCOPE_link_local,
+ IP6_MULTICAST_GROUP_ID_mldv2_routers);
+
/* add reports here */
ip6_mldp_group_t *m;
int num_addr_records = 0;
/* fill in the hop-by-hop extension header (router alert) info */
rh0->ext_hdr.next_hdr = IP_PROTOCOL_ICMP6;
rh0->ext_hdr.n_data_u64s = 0;
-
+
rh0->alert.type = IP6_MLDP_ALERT_TYPE;
rh0->alert.len = 2;
rh0->alert.value = 0;
-
+
rh0->pad.type = 1;
rh0->pad.len = 0;
-
+
rh0->icmp.checksum = 0;
- pool_foreach (m, radv_info->mldp_group_pool, ({
+ /* *INDENT-OFF* */
+ pool_foreach (m, radv_info->mldp_group_pool,
+ ({
+ rr.type = m->type;
+ rr.aux_data_len_u32s = 0;
+ rr.num_sources = clib_host_to_net_u16 (m->num_sources);
+ clib_memcpy(&rr.mcast_addr, &m->mcast_address, sizeof(ip6_address_t));
- rr.type = m->type;
- rr.aux_data_len_u32s = 0;
- rr.num_sources = clib_host_to_net_u16 (m->num_sources);
- clib_memcpy(&rr.mcast_addr, &m->mcast_address, sizeof(ip6_address_t));
+ num_addr_records++;
- num_addr_records++;
+ vlib_buffer_add_data
+ (vm, b0->free_list_index, bo0,
+ (void *)&rr, sizeof(icmp6_multicast_address_record_t));
- vlib_buffer_add_data (vm,
- b0->free_list_index,
- bo0,
- (void *)&rr, sizeof(icmp6_multicast_address_record_t));
-
- payload_length += sizeof( icmp6_multicast_address_record_t);
- }));
+ payload_length += sizeof( icmp6_multicast_address_record_t);
+ }));
+ /* *INDENT-ON* */
rh0->rsvd = 0;
- rh0->num_addr_records = clib_host_to_net_u16(num_addr_records);
-
+ rh0->num_addr_records = clib_host_to_net_u16 (num_addr_records);
+
/* update lengths */
ip0->payload_length = clib_host_to_net_u16 (payload_length);
- rh0->icmp.checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0,
- &bogus_length);
- ASSERT(bogus_length == 0);
+ rh0->icmp.checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0,
+ &bogus_length);
+ ASSERT (bogus_length == 0);
- /*
+ /*
* OK to override w/ no regard for actual FIB, because
- * ip6-rewrite-local only looks at the adjacency.
+ * ip6-rewrite only looks at the adjacency.
*/
- vnet_buffer (b0)->sw_if_index[VLIB_RX] =
+ vnet_buffer (b0)->sw_if_index[VLIB_RX] =
vnet_main.local_interface_sw_if_index;
-
- vnet_buffer (b0)->ip.adj_index[VLIB_RX] =
+
+ vnet_buffer (b0)->ip.adj_index[VLIB_TX] =
radv_info->all_mldv2_routers_adj_index;
+ b0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED;
+
+ vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) "ip6-rewrite");
- vlib_node_t * node = vlib_get_node_by_name (vm, (u8 *) "ip6-rewrite-local");
-
f = vlib_get_frame_to_node (vm, node->index);
to_next = vlib_frame_vector_args (f);
to_next[0] = bo0;
f->n_vectors = 1;
-
+
vlib_put_frame_to_node (vm, node->index, f);
return;
}
-VLIB_REGISTER_NODE (ip6_icmp_router_solicitation_node,static) = {
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip6_icmp_router_solicitation_node,static) =
+{
.function = icmp6_router_solicitation,
.name = "icmp6-router-solicitation",
.n_next_nodes = ICMP6_ROUTER_SOLICITATION_N_NEXT,
.next_nodes = {
[ICMP6_ROUTER_SOLICITATION_NEXT_DROP] = "error-drop",
- [ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW] = "ip6-rewrite-local",
+ [ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW] = "ip6-rewrite",
[ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX] = "interface-output",
},
};
+/* *INDENT-ON* */
/* send a RA or update the timer info etc.. */
static uword
ip6_neighbor_process_timer_event (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
- vnet_main_t * vnm = vnet_get_main();
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- ip6_radv_t *radv_info;
- vlib_frame_t * f = 0;
+ vnet_main_t *vnm = vnet_get_main ();
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ ip6_radv_t *radv_info;
+ vlib_frame_t *f = 0;
u32 n_this_frame = 0;
u32 n_left_to_next = 0;
- u32 * to_next = 0;
- u32 bo0;
- icmp6_router_solicitation_header_t * h0;
- vlib_buffer_t * b0;
+ u32 *to_next = 0;
+ u32 bo0;
+ icmp6_router_solicitation_header_t *h0;
+ vlib_buffer_t *b0;
f64 now = vlib_time_now (vm);
/* Interface ip6 radv info list */
- pool_foreach (radv_info, nm->if_radv_pool, ({
+ /* *INDENT-OFF* */
+ pool_foreach (radv_info, nm->if_radv_pool,
+ ({
+ if( !vnet_sw_interface_is_admin_up (vnm, radv_info->sw_if_index))
+ {
+ radv_info->initial_adverts_sent = radv_info->initial_adverts_count-1;
+ radv_info->next_multicast_time = now;
+ radv_info->last_multicast_time = now;
+ radv_info->last_radv_time = 0;
+ radv_info->all_routers_mcast = 0;
+ continue;
+ }
+
+ /* Make sure that we've joined the all-routers multicast group */
+ if(!radv_info->all_routers_mcast)
+ {
+ /* send MDLP_REPORT_EVENT message */
+ ip6_neighbor_send_mldpv2_report(radv_info->sw_if_index);
+ radv_info->all_routers_mcast = 1;
+ }
+
+ /* is it time to send a multicast RA on this interface? */
+ if(radv_info->send_radv && (now >= radv_info->next_multicast_time))
+ {
+ u32 n_to_alloc = 1;
+ u32 n_allocated;
+
+ f64 rfn = (radv_info->max_radv_interval - radv_info->min_radv_interval) *
+ random_f64 (&radv_info->seed) + radv_info->min_radv_interval;
+
+ /* multicast send - compute next multicast send time */
+ if( radv_info->initial_adverts_sent > 0)
+ {
+ radv_info->initial_adverts_sent--;
+ if(rfn > radv_info-> initial_adverts_interval)
+ rfn = radv_info-> initial_adverts_interval;
+
+ /* check to see if we are ceasing to send */
+ if( radv_info->initial_adverts_sent == 0)
+ if(radv_info->cease_radv)
+ radv_info->send_radv = 0;
+ }
- if( !vnet_sw_interface_is_admin_up (vnm, radv_info->sw_if_index))
- {
- radv_info->initial_adverts_sent = radv_info->initial_adverts_count-1;
- radv_info->next_multicast_time = now;
- radv_info->last_multicast_time = now;
- radv_info->last_radv_time = 0;
- radv_info->all_routers_mcast = 0;
- continue;
- }
+ radv_info->next_multicast_time = rfn + now;
+ radv_info->last_multicast_time = now;
- /* Make sure that we've joined the all-routers multicast group */
- if(!radv_info->all_routers_mcast)
- {
- /* send MDLP_REPORT_EVENT message */
- ip6_neighbor_send_mldpv2_report(radv_info->sw_if_index);
- radv_info->all_routers_mcast = 1;
- }
+ /* send advert now - build a "solicted" router advert with unspecified source address */
+ n_allocated = vlib_buffer_alloc_from_free_list
+ (vm, &bo0, n_to_alloc, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
- /* is it time to send a multicast RA on this interface? */
- if(radv_info->send_radv && (now >= radv_info->next_multicast_time))
- {
- u32 n_to_alloc = 1;
- u32 n_allocated;
-
- f64 rfn = (radv_info->max_radv_interval - radv_info->min_radv_interval) *
- random_f64 (&radv_info->seed) + radv_info->min_radv_interval;
-
- /* multicast send - compute next multicast send time */
- if( radv_info->initial_adverts_sent > 0)
- {
- radv_info->initial_adverts_sent--;
- if(rfn > radv_info-> initial_adverts_interval)
- rfn = radv_info-> initial_adverts_interval;
-
- /* check to see if we are ceasing to send */
- if( radv_info->initial_adverts_sent == 0)
- if(radv_info->cease_radv)
- radv_info->send_radv = 0;
- }
-
- radv_info->next_multicast_time = rfn + now;
- radv_info->last_multicast_time = now;
-
- /* send advert now - build a "solicted" router advert with unspecified source address */
- n_allocated = vlib_buffer_alloc_from_free_list(vm,
- &bo0,
- n_to_alloc,
- VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
-
- if (PREDICT_FALSE(n_allocated == 0))
- {
- clib_warning ("buffer allocation failure");
- continue;
- }
- b0 = vlib_get_buffer (vm, bo0);
- b0->current_length = sizeof( icmp6_router_solicitation_header_t);
- b0->error = ICMP6_ERROR_NONE;
- vnet_buffer (b0)->sw_if_index[VLIB_RX] = radv_info->sw_if_index;
-
- h0 = vlib_buffer_get_current (b0);
-
- memset (h0, 0, sizeof (icmp6_router_solicitation_header_t));
-
- h0->ip.ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (0x6 << 28);
- h0->ip.payload_length = clib_host_to_net_u16 (sizeof (icmp6_router_solicitation_header_t)
- - STRUCT_OFFSET_OF (icmp6_router_solicitation_header_t, neighbor));
- h0->ip.protocol = IP_PROTOCOL_ICMP6;
- h0->ip.hop_limit = 255;
-
- /* set src/dst address as "unspecified" this marks this packet as internally generated rather than recieved */
- h0->ip.src_address.as_u64[0] = 0;
- h0->ip.src_address.as_u64[1] = 0;
-
- h0->ip.dst_address.as_u64[0] = 0;
- h0->ip.dst_address.as_u64[1] = 0;
-
- h0->neighbor.icmp.type = ICMP6_router_solicitation;
-
- if (PREDICT_FALSE(f == 0))
- {
- f = vlib_get_frame_to_node (vm, ip6_icmp_router_solicitation_node.index);
- to_next = vlib_frame_vector_args (f);
- n_left_to_next = VLIB_FRAME_SIZE;
- n_this_frame = 0;
- }
-
- n_this_frame++;
- n_left_to_next--;
- to_next[0] = bo0;
- to_next += 1;
-
- if (PREDICT_FALSE(n_left_to_next == 0))
- {
- f->n_vectors = n_this_frame;
- vlib_put_frame_to_node (vm, ip6_icmp_router_solicitation_node.index, f);
- f = 0;
- }
- }
- }));
+ if (PREDICT_FALSE(n_allocated == 0))
+ {
+ clib_warning ("buffer allocation failure");
+ continue;
+ }
+ b0 = vlib_get_buffer (vm, bo0);
+ b0->current_length = sizeof( icmp6_router_solicitation_header_t);
+ b0->error = ICMP6_ERROR_NONE;
+ vnet_buffer (b0)->sw_if_index[VLIB_RX] = radv_info->sw_if_index;
+
+ h0 = vlib_buffer_get_current (b0);
+
+ memset (h0, 0, sizeof (icmp6_router_solicitation_header_t));
+
+ h0->ip.ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (0x6 << 28);
+ h0->ip.payload_length = clib_host_to_net_u16 (sizeof (icmp6_router_solicitation_header_t)
+ - STRUCT_OFFSET_OF (icmp6_router_solicitation_header_t, neighbor));
+ h0->ip.protocol = IP_PROTOCOL_ICMP6;
+ h0->ip.hop_limit = 255;
+
+ /* set src/dst address as "unspecified" this marks this packet as internally generated rather than recieved */
+ h0->ip.src_address.as_u64[0] = 0;
+ h0->ip.src_address.as_u64[1] = 0;
+
+ h0->ip.dst_address.as_u64[0] = 0;
+ h0->ip.dst_address.as_u64[1] = 0;
+
+ h0->neighbor.icmp.type = ICMP6_router_solicitation;
+
+ if (PREDICT_FALSE(f == 0))
+ {
+ f = vlib_get_frame_to_node (vm, ip6_icmp_router_solicitation_node.index);
+ to_next = vlib_frame_vector_args (f);
+ n_left_to_next = VLIB_FRAME_SIZE;
+ n_this_frame = 0;
+ }
+
+ n_this_frame++;
+ n_left_to_next--;
+ to_next[0] = bo0;
+ to_next += 1;
+
+ if (PREDICT_FALSE(n_left_to_next == 0))
+ {
+ f->n_vectors = n_this_frame;
+ vlib_put_frame_to_node (vm, ip6_icmp_router_solicitation_node.index, f);
+ f = 0;
+ }
+ }
+ }));
+ /* *INDENT-ON* */
if (f)
{
- ASSERT(n_this_frame);
+ ASSERT (n_this_frame);
f->n_vectors = n_this_frame;
vlib_put_frame_to_node (vm, ip6_icmp_router_solicitation_node.index, f);
}
- return 0;
+ return 0;
}
static uword
vlib_frame_t * frame)
{
uword event_type;
- ip6_icmp_neighbor_discovery_event_data_t * event_data;
+ ip6_icmp_neighbor_discovery_event_data_t *event_data;
/* init code here */
-
+
while (1)
{
- vlib_process_wait_for_event_or_clock (vm, 1. /* seconds */);
+ vlib_process_wait_for_event_or_clock (vm, 1. /* seconds */ );
- event_data = vlib_process_get_event_data (vm, &event_type);
+ event_data = vlib_process_get_event_data (vm, &event_type);
- if(!event_data)
+ if (!event_data)
{
/* No events found: timer expired. */
/* process interface list and send RAs as appropriate, update timer info */
- ip6_neighbor_process_timer_event (vm, node, frame);
+ ip6_neighbor_process_timer_event (vm, node, frame);
}
else
{
- switch (event_type) {
+ switch (event_type)
+ {
+
+ case ICMP6_ND_EVENT_INIT:
+ break;
+
+ case ~0:
+ break;
+
+ default:
+ ASSERT (0);
+ }
- case ICMP6_ND_EVENT_INIT:
- break;
-
- case ~0:
- break;
-
- default:
- ASSERT (0);
- }
-
if (event_data)
_vec_len (event_data) = 0;
}
return frame->n_vectors;
}
-VLIB_REGISTER_NODE (ip6_icmp_router_advertisement_node,static) = {
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip6_icmp_router_advertisement_node,static) =
+{
.function = icmp6_router_advertisement,
.name = "icmp6-router-advertisement",
[0] = "error-drop",
},
};
+/* *INDENT-ON* */
vlib_node_registration_t ip6_icmp_neighbor_discovery_event_node = {
static uword
icmp6_neighbor_solicitation (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{ return icmp6_neighbor_solicitation_or_advertisement (vm, node, frame, /* is_solicitation */ 1); }
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return icmp6_neighbor_solicitation_or_advertisement (vm, node, frame,
+ /* is_solicitation */
+ 1);
+}
static uword
icmp6_neighbor_advertisement (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
-{ return icmp6_neighbor_solicitation_or_advertisement (vm, node, frame, /* is_solicitation */ 0); }
+{
+ return icmp6_neighbor_solicitation_or_advertisement (vm, node, frame,
+ /* is_solicitation */
+ 0);
+}
-VLIB_REGISTER_NODE (ip6_icmp_neighbor_solicitation_node,static) = {
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip6_icmp_neighbor_solicitation_node,static) =
+{
.function = icmp6_neighbor_solicitation,
.name = "icmp6-neighbor-solicitation",
[ICMP6_NEIGHBOR_SOLICITATION_NEXT_REPLY] = "interface-output",
},
};
+/* *INDENT-ON* */
-VLIB_REGISTER_NODE (ip6_icmp_neighbor_advertisement_node,static) = {
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip6_icmp_neighbor_advertisement_node,static) =
+{
.function = icmp6_neighbor_advertisement,
.name = "icmp6-neighbor-advertisement",
[0] = "error-drop",
},
};
+/* *INDENT-ON* */
-/* API support functions */
+/* API support functions */
int
-ip6_neighbor_ra_config(vlib_main_t * vm, u32 sw_if_index,
- u8 surpress, u8 managed, u8 other,
- u8 ll_option, u8 send_unicast, u8 cease,
- u8 use_lifetime, u32 lifetime,
- u32 initial_count, u32 initial_interval,
- u32 max_interval, u32 min_interval,
- u8 is_no)
-{
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- int error;
+ip6_neighbor_ra_config (vlib_main_t * vm, u32 sw_if_index,
+ u8 suppress, u8 managed, u8 other,
+ u8 ll_option, u8 send_unicast, u8 cease,
+ u8 use_lifetime, u32 lifetime,
+ u32 initial_count, u32 initial_interval,
+ u32 max_interval, u32 min_interval, u8 is_no)
+{
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ int error;
u32 ri;
/* look up the radv_t information for this interface */
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0);
+ vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index,
+ ~0);
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
- error = (ri != ~0) ? 0 : VNET_API_ERROR_INVALID_SW_IF_INDEX;
+ error = (ri != ~0) ? 0 : VNET_API_ERROR_INVALID_SW_IF_INDEX;
- if(!error)
+ if (!error)
{
- ip6_radv_t * radv_info;
- radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
-
- if((max_interval != 0) && (min_interval ==0))
- min_interval = .75 * max_interval;
-
- max_interval = (max_interval != 0) ? ( (is_no) ? DEF_MAX_RADV_INTERVAL : max_interval) : radv_info->max_radv_interval;
- min_interval = (min_interval != 0) ? ( (is_no) ? DEF_MIN_RADV_INTERVAL : min_interval) : radv_info->min_radv_interval;
- lifetime = (use_lifetime != 0) ? ( (is_no) ? DEF_DEF_RTR_LIFETIME : lifetime) : radv_info->adv_router_lifetime_in_sec;
-
- if(lifetime)
+ ip6_radv_t *radv_info;
+ radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
+
+ if ((max_interval != 0) && (min_interval == 0))
+ min_interval = .75 * max_interval;
+
+ max_interval =
+ (max_interval !=
+ 0) ? ((is_no) ? DEF_MAX_RADV_INTERVAL : max_interval) :
+ radv_info->max_radv_interval;
+ min_interval =
+ (min_interval !=
+ 0) ? ((is_no) ? DEF_MIN_RADV_INTERVAL : min_interval) :
+ radv_info->min_radv_interval;
+ lifetime =
+ (use_lifetime !=
+ 0) ? ((is_no) ? DEF_DEF_RTR_LIFETIME : lifetime) :
+ radv_info->adv_router_lifetime_in_sec;
+
+ if (lifetime)
{
- if(lifetime > MAX_DEF_RTR_LIFETIME)
+ if (lifetime > MAX_DEF_RTR_LIFETIME)
lifetime = MAX_DEF_RTR_LIFETIME;
-
- if(lifetime <= max_interval)
- return VNET_API_ERROR_INVALID_VALUE;
+
+ if (lifetime <= max_interval)
+ return VNET_API_ERROR_INVALID_VALUE;
}
-
- if(min_interval != 0)
+
+ if (min_interval != 0)
{
- if((min_interval > .75 * max_interval) ||
- (min_interval < 3))
- return VNET_API_ERROR_INVALID_VALUE;
+ if ((min_interval > .75 * max_interval) || (min_interval < 3))
+ return VNET_API_ERROR_INVALID_VALUE;
}
- if((initial_count > MAX_INITIAL_RTR_ADVERTISEMENTS) ||
- (initial_interval > MAX_INITIAL_RTR_ADVERT_INTERVAL))
- return VNET_API_ERROR_INVALID_VALUE;
-
- /*
- if "flag" is set and is_no is true then restore default value else set value corresponding to "flag"
- if "flag" is clear don't change corresponding value
- */
- radv_info->send_radv = (surpress != 0) ? ( (is_no != 0) ? 1 : 0 ) : radv_info->send_radv;
- radv_info->adv_managed_flag = ( managed != 0) ? ( (is_no) ? 0 : 1) : radv_info->adv_managed_flag;
- radv_info->adv_other_flag = (other != 0) ? ( (is_no) ? 0: 1) : radv_info->adv_other_flag;
- radv_info->adv_link_layer_address = ( ll_option != 0) ? ( (is_no) ? 1 : 0) : radv_info->adv_link_layer_address;
- radv_info->send_unicast = (send_unicast != 0) ? ( (is_no) ? 0 : 1) : radv_info->send_unicast;
- radv_info->cease_radv = ( cease != 0) ? ( (is_no) ? 0 : 1) : radv_info->cease_radv;
-
- radv_info->min_radv_interval = min_interval;
+ if ((initial_count > MAX_INITIAL_RTR_ADVERTISEMENTS) ||
+ (initial_interval > MAX_INITIAL_RTR_ADVERT_INTERVAL))
+ return VNET_API_ERROR_INVALID_VALUE;
+
+ /*
+ if "flag" is set and is_no is true then restore default value else set value corresponding to "flag"
+ if "flag" is clear don't change corresponding value
+ */
+ radv_info->send_radv =
+ (suppress != 0) ? ((is_no != 0) ? 1 : 0) : radv_info->send_radv;
+ radv_info->adv_managed_flag =
+ (managed != 0) ? ((is_no) ? 0 : 1) : radv_info->adv_managed_flag;
+ radv_info->adv_other_flag =
+ (other != 0) ? ((is_no) ? 0 : 1) : radv_info->adv_other_flag;
+ radv_info->adv_link_layer_address =
+ (ll_option !=
+ 0) ? ((is_no) ? 1 : 0) : radv_info->adv_link_layer_address;
+ radv_info->send_unicast =
+ (send_unicast != 0) ? ((is_no) ? 0 : 1) : radv_info->send_unicast;
+ radv_info->cease_radv =
+ (cease != 0) ? ((is_no) ? 0 : 1) : radv_info->cease_radv;
+
+ radv_info->min_radv_interval = min_interval;
radv_info->max_radv_interval = max_interval;
radv_info->adv_router_lifetime_in_sec = lifetime;
- radv_info->initial_adverts_count =
- (initial_count != 0) ? ( (is_no) ? MAX_INITIAL_RTR_ADVERTISEMENTS : initial_count) : radv_info->initial_adverts_count ;
- radv_info->initial_adverts_interval =
- (initial_interval != 0) ? ( (is_no) ? MAX_INITIAL_RTR_ADVERT_INTERVAL : initial_interval) : radv_info->initial_adverts_interval;
+ radv_info->initial_adverts_count =
+ (initial_count !=
+ 0) ? ((is_no) ? MAX_INITIAL_RTR_ADVERTISEMENTS : initial_count) :
+ radv_info->initial_adverts_count;
+ radv_info->initial_adverts_interval =
+ (initial_interval !=
+ 0) ? ((is_no) ? MAX_INITIAL_RTR_ADVERT_INTERVAL : initial_interval) :
+ radv_info->initial_adverts_interval;
/* restart */
- if((cease != 0) && (is_no))
- radv_info-> send_radv = 1;
+ if ((cease != 0) && (is_no))
+ radv_info->send_radv = 1;
- radv_info->initial_adverts_sent = radv_info->initial_adverts_count -1;
- radv_info->next_multicast_time = vlib_time_now (vm);
+ radv_info->initial_adverts_sent = radv_info->initial_adverts_count - 1;
+ radv_info->next_multicast_time = vlib_time_now (vm);
radv_info->last_multicast_time = vlib_time_now (vm);
- radv_info->last_radv_time = 0;
+ radv_info->last_radv_time = 0;
}
- return(error);
+ return (error);
}
int
-ip6_neighbor_ra_prefix(vlib_main_t * vm, u32 sw_if_index,
- ip6_address_t *prefix_addr, u8 prefix_len,
- u8 use_default, u32 val_lifetime, u32 pref_lifetime,
- u8 no_advertise, u8 off_link, u8 no_autoconfig, u8 no_onlink,
- u8 is_no)
+ip6_neighbor_ra_prefix (vlib_main_t * vm, u32 sw_if_index,
+ ip6_address_t * prefix_addr, u8 prefix_len,
+ u8 use_default, u32 val_lifetime, u32 pref_lifetime,
+ u8 no_advertise, u8 off_link, u8 no_autoconfig,
+ u8 no_onlink, u8 is_no)
{
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
int error;
-
+
u32 ri;
/* look up the radv_t information for this interface */
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0);
-
+ vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index,
+ ~0);
+
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
error = (ri != ~0) ? 0 : VNET_API_ERROR_INVALID_SW_IF_INDEX;
-
- if(!error)
+
+ if (!error)
{
f64 now = vlib_time_now (vm);
- ip6_radv_t * radv_info;
- radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
+ ip6_radv_t *radv_info;
+ radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
/* prefix info add, delete or update */
- ip6_radv_prefix_t * prefix;
-
+ ip6_radv_prefix_t *prefix;
+
/* lookup prefix info for this address on this interface */
- uword * p = mhash_get (&radv_info->address_to_prefix_index, prefix_addr);
-
+ uword *p = mhash_get (&radv_info->address_to_prefix_index, prefix_addr);
+
prefix = p ? pool_elt_at_index (radv_info->adv_prefixes_pool, p[0]) : 0;
- if(is_no)
+ if (is_no)
{
/* delete */
- if(!prefix)
- return VNET_API_ERROR_INVALID_VALUE; /* invalid prefix */
-
- if(prefix->prefix_len != prefix_len)
+ if (!prefix)
+ return VNET_API_ERROR_INVALID_VALUE; /* invalid prefix */
+
+ if (prefix->prefix_len != prefix_len)
return VNET_API_ERROR_INVALID_VALUE_2;
- /* FIXME - Should the DP do this or the CP ?*/
+ /* FIXME - Should the DP do this or the CP ? */
/* do specific delete processing here before returning */
/* try to remove from routing table */
- mhash_unset (&radv_info->address_to_prefix_index, prefix_addr,/* old_value */ 0);
+ mhash_unset (&radv_info->address_to_prefix_index, prefix_addr,
+ /* old_value */ 0);
pool_put (radv_info->adv_prefixes_pool, prefix);
- radv_info->initial_adverts_sent = radv_info->initial_adverts_count -1;
- radv_info->next_multicast_time = vlib_time_now (vm);
+ radv_info->initial_adverts_sent =
+ radv_info->initial_adverts_count - 1;
+ radv_info->next_multicast_time = vlib_time_now (vm);
radv_info->last_multicast_time = vlib_time_now (vm);
- radv_info->last_radv_time = 0;
- return(error);
+ radv_info->last_radv_time = 0;
+ return (error);
}
/* adding or changing */
- if(!prefix)
+ if (!prefix)
{
/* add */
u32 pi;
pool_get (radv_info->adv_prefixes_pool, prefix);
pi = prefix - radv_info->adv_prefixes_pool;
- mhash_set (&radv_info->address_to_prefix_index, prefix_addr, pi, /* old_value */ 0);
-
- memset(prefix, 0x0, sizeof(ip6_radv_prefix_t));
-
+ mhash_set (&radv_info->address_to_prefix_index, prefix_addr, pi,
+ /* old_value */ 0);
+
+ memset (prefix, 0x0, sizeof (ip6_radv_prefix_t));
+
prefix->prefix_len = prefix_len;
- clib_memcpy(&prefix->prefix, prefix_addr, sizeof(ip6_address_t));
-
+ clib_memcpy (&prefix->prefix, prefix_addr, sizeof (ip6_address_t));
+
/* initialize default values */
- prefix->adv_on_link_flag = 1; /* L bit set */
- prefix->adv_autonomous_flag = 1; /* A bit set */
- prefix->adv_valid_lifetime_in_secs = DEF_ADV_VALID_LIFETIME;
+ prefix->adv_on_link_flag = 1; /* L bit set */
+ prefix->adv_autonomous_flag = 1; /* A bit set */
+ prefix->adv_valid_lifetime_in_secs = DEF_ADV_VALID_LIFETIME;
prefix->adv_pref_lifetime_in_secs = DEF_ADV_PREF_LIFETIME;
prefix->enabled = 1;
prefix->decrement_lifetime_flag = 1;
prefix->deprecated_prefix_flag = 1;
- if(off_link == 0)
+ if (off_link == 0)
{
- /* FIXME - Should the DP do this or the CP ?*/
+ /* FIXME - Should the DP do this or the CP ? */
/* insert prefix into routing table as a connected prefix */
}
- if(use_default)
+ if (use_default)
goto restart;
}
else
{
-
- if(prefix->prefix_len != prefix_len)
+
+ if (prefix->prefix_len != prefix_len)
return VNET_API_ERROR_INVALID_VALUE_2;
- if(off_link != 0)
+ if (off_link != 0)
{
- /* FIXME - Should the DP do this or the CP ?*/
+ /* FIXME - Should the DP do this or the CP ? */
/* remove from routing table if already there */
- }
+ }
}
- if((val_lifetime == ~0) || (pref_lifetime == ~0))
+ if ((val_lifetime == ~0) || (pref_lifetime == ~0))
{
- prefix->adv_valid_lifetime_in_secs = ~0;
+ prefix->adv_valid_lifetime_in_secs = ~0;
prefix->adv_pref_lifetime_in_secs = ~0;
prefix->decrement_lifetime_flag = 0;
}
else
{
- prefix->adv_valid_lifetime_in_secs = val_lifetime;;
- prefix->adv_pref_lifetime_in_secs = pref_lifetime;
+ prefix->adv_valid_lifetime_in_secs = val_lifetime;;
+ prefix->adv_pref_lifetime_in_secs = pref_lifetime;
}
-
+
/* copy remaining */
prefix->enabled = !(no_advertise != 0);
prefix->adv_on_link_flag = !((off_link != 0) || (no_onlink != 0));
prefix->adv_autonomous_flag = !(no_autoconfig != 0);
- restart:
+ restart:
/* restart */
/* fill in the expiration times */
- prefix->valid_lifetime_expires = now + prefix->adv_valid_lifetime_in_secs;
+ prefix->valid_lifetime_expires =
+ now + prefix->adv_valid_lifetime_in_secs;
prefix->pref_lifetime_expires = now + prefix->adv_pref_lifetime_in_secs;
-
- radv_info->initial_adverts_sent = radv_info->initial_adverts_count -1;
- radv_info->next_multicast_time = vlib_time_now (vm);
+
+ radv_info->initial_adverts_sent = radv_info->initial_adverts_count - 1;
+ radv_info->next_multicast_time = vlib_time_now (vm);
radv_info->last_multicast_time = vlib_time_now (vm);
- radv_info->last_radv_time = 0;
+ radv_info->last_radv_time = 0;
}
- return(error);
+ return (error);
}
clib_error_t *
-ip6_neighbor_cmd(vlib_main_t * vm, unformat_input_t * main_input, vlib_cli_command_t * cmd)
+ip6_neighbor_cmd (vlib_main_t * vm, unformat_input_t * main_input,
+ vlib_cli_command_t * cmd)
{
- vnet_main_t * vnm = vnet_get_main();
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- clib_error_t * error = 0;
+ vnet_main_t *vnm = vnet_get_main ();
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ clib_error_t *error = 0;
u8 is_no = 0;
- u8 surpress = 0, managed = 0, other = 0;
- u8 surpress_ll_option = 0, send_unicast = 0, cease= 0;
+ u8 suppress = 0, managed = 0, other = 0;
+ u8 suppress_ll_option = 0, send_unicast = 0, cease = 0;
u8 use_lifetime = 0;
- u32 sw_if_index, ra_lifetime = 0, ra_initial_count = 0, ra_initial_interval = 0;
- u32 ra_max_interval = 0 , ra_min_interval = 0;
+ u32 sw_if_index, ra_lifetime = 0, ra_initial_count =
+ 0, ra_initial_interval = 0;
+ u32 ra_max_interval = 0, ra_min_interval = 0;
- unformat_input_t _line_input, * line_input = &_line_input;
- vnet_sw_interface_t * sw_if0;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ vnet_sw_interface_t *sw_if0;
int add_radv_info = 1;
- __attribute__((unused)) ip6_radv_t * radv_info = 0;
+ __attribute__ ((unused)) ip6_radv_t *radv_info = 0;
ip6_address_t ip6_addr;
u32 addr_len;
-
+
/* Get a line of input. */
- if (! unformat_user (main_input, unformat_line_input, line_input))
+ if (!unformat_user (main_input, unformat_line_input, line_input))
return 0;
/* get basic radv info for this interface */
- if(unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ if (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat_user (line_input,
+ if (unformat_user (line_input,
unformat_vnet_sw_interface, vnm, &sw_if_index))
{
u32 ri;
- ethernet_interface_t * eth_if0 = 0;
-
+ ethernet_interface_t *eth_if0 = 0;
+
sw_if0 = vnet_get_sup_sw_interface (vnm, sw_if_index);
- if(sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
- eth_if0 = ethernet_get_interface (ðernet_main, sw_if0->hw_if_index);
-
- if(!eth_if0)
+ if (sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
+ eth_if0 =
+ ethernet_get_interface (ðernet_main, sw_if0->hw_if_index);
+
+ if (!eth_if0)
{
- error = clib_error_return (0, "Interface must be of ethernet type");
+ error =
+ clib_error_return (0, "Interface must be of ethernet type");
goto done;
}
-
+
/* look up the radv_t information for this interface */
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0);
-
+ vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index,
+ sw_if_index, ~0);
+
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
-
- if(ri != ~0)
+
+ if (ri != ~0)
{
- radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
+ radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
}
else
{
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "no"))
- is_no = 1;
- else if(unformat (line_input, "prefix %U/%d",
- unformat_ip6_address, &ip6_addr,
- &addr_len))
+ is_no = 1;
+ else if (unformat (line_input, "prefix %U/%d",
+ unformat_ip6_address, &ip6_addr, &addr_len))
{
add_radv_info = 0;
break;
other = 1;
break;
}
- else if (unformat (line_input, "ra-surpress"))
+ else if (unformat (line_input, "ra-suppress") ||
+ unformat (line_input, "ra-surpress"))
{
- surpress = 1;
+ suppress = 1;
break;
}
- else if (unformat (line_input, "ra-surpress-link-layer"))
+ else if (unformat (line_input, "ra-suppress-link-layer") ||
+ unformat (line_input, "ra-surpress-link-layer"))
{
- surpress_ll_option = 1;
+ suppress_ll_option = 1;
break;
}
else if (unformat (line_input, "ra-send-unicast"))
else if (unformat (line_input, "ra-lifetime"))
{
if (!unformat (line_input, "%d", &ra_lifetime))
- return(error = unformat_parse_error (line_input));
+ return (error = unformat_parse_error (line_input));
use_lifetime = 1;
break;
- }
+ }
else if (unformat (line_input, "ra-initial"))
{
- if (!unformat (line_input, "%d %d", &ra_initial_count, &ra_initial_interval))
- return(error = unformat_parse_error (line_input));
+ if (!unformat
+ (line_input, "%d %d", &ra_initial_count, &ra_initial_interval))
+ return (error = unformat_parse_error (line_input));
break;
}
else if (unformat (line_input, "ra-interval"))
{
if (!unformat (line_input, "%d", &ra_max_interval))
- return(error = unformat_parse_error (line_input));
+ return (error = unformat_parse_error (line_input));
if (!unformat (line_input, "%d", &ra_min_interval))
ra_min_interval = 0;
break;
}
- else if(unformat (line_input, "ra-cease"))
+ else if (unformat (line_input, "ra-cease"))
{
cease = 1;
break;
}
else
- return(unformat_parse_error (line_input));
+ return (unformat_parse_error (line_input));
}
- if(add_radv_info)
+ if (add_radv_info)
{
- ip6_neighbor_ra_config(vm, sw_if_index,
- surpress, managed, other,
- surpress_ll_option, send_unicast, cease,
- use_lifetime, ra_lifetime,
- ra_initial_count, ra_initial_interval,
- ra_max_interval, ra_min_interval,
- is_no);
+ ip6_neighbor_ra_config (vm, sw_if_index,
+ suppress, managed, other,
+ suppress_ll_option, send_unicast, cease,
+ use_lifetime, ra_lifetime,
+ ra_initial_count, ra_initial_interval,
+ ra_max_interval, ra_min_interval, is_no);
}
else
{
- u32 valid_lifetime_in_secs = 0;
+ u32 valid_lifetime_in_secs = 0;
u32 pref_lifetime_in_secs = 0;
u8 use_prefix_default_values = 0;
- u8 no_advertise = 0;
- u8 off_link= 0;
+ u8 no_advertise = 0;
+ u8 off_link = 0;
u8 no_autoconfig = 0;
- u8 no_onlink= 0;
+ u8 no_onlink = 0;
/* get the rest of the command */
- while(unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
- if(unformat (line_input, "default"))
+ if (unformat (line_input, "default"))
{
use_prefix_default_values = 1;
break;
}
- else if(unformat (line_input, "infinite"))
+ else if (unformat (line_input, "infinite"))
{
- valid_lifetime_in_secs = ~0;
+ valid_lifetime_in_secs = ~0;
pref_lifetime_in_secs = ~0;
break;
}
- else if(unformat (line_input, "%d %d", &valid_lifetime_in_secs,
- &pref_lifetime_in_secs))
+ else if (unformat (line_input, "%d %d", &valid_lifetime_in_secs,
+ &pref_lifetime_in_secs))
break;
else
break;
while (!use_prefix_default_values &&
unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
- if(unformat (line_input, "no-advertise"))
+ if (unformat (line_input, "no-advertise"))
no_advertise = 1;
- else if(unformat (line_input, "off-link"))
+ else if (unformat (line_input, "off-link"))
off_link = 1;
- else if(unformat (line_input, "no-autoconfig"))
+ else if (unformat (line_input, "no-autoconfig"))
no_autoconfig = 1;
- else if(unformat (line_input, "no-onlink"))
+ else if (unformat (line_input, "no-onlink"))
no_onlink = 1;
else
- return(unformat_parse_error (line_input));
+ return (unformat_parse_error (line_input));
}
-
- ip6_neighbor_ra_prefix(vm, sw_if_index,
- &ip6_addr, addr_len,
- use_prefix_default_values,
- valid_lifetime_in_secs,
- pref_lifetime_in_secs,
- no_advertise,
- off_link,
- no_autoconfig,
- no_onlink,
- is_no);
+
+ ip6_neighbor_ra_prefix (vm, sw_if_index,
+ &ip6_addr, addr_len,
+ use_prefix_default_values,
+ valid_lifetime_in_secs,
+ pref_lifetime_in_secs,
+ no_advertise,
+ off_link, no_autoconfig, no_onlink, is_no);
}
unformat_free (line_input);
-
- done:
+
+done:
return error;
}
+static void
+ip6_print_addrs (vlib_main_t * vm, u32 * addrs)
+{
+ ip_lookup_main_t *lm = &ip6_main.lookup_main;
+ u32 i;
+
+ for (i = 0; i < vec_len (addrs); i++)
+ {
+ ip_interface_address_t *a =
+ pool_elt_at_index (lm->if_address_pool, addrs[i]);
+ ip6_address_t *address = ip_interface_address_get_address (lm, a);
+
+ vlib_cli_output (vm, "\t\t%U/%d",
+ format_ip6_address, address, a->address_length);
+ }
+}
+
static clib_error_t *
show_ip6_interface_cmd (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
- vnet_main_t * vnm = vnet_get_main();
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- clib_error_t * error = 0;
+ vnet_main_t *vnm = vnet_get_main ();
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ clib_error_t *error = 0;
u32 sw_if_index;
sw_if_index = ~0;
- if (unformat_user (input,
- unformat_vnet_sw_interface, vnm, &sw_if_index))
+ if (unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
{
u32 ri;
-
+
/* look up the radv_t information for this interface */
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0);
-
+ vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index,
+ sw_if_index, ~0);
+
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
-
- if(ri != ~0)
+
+ if (ri != ~0)
{
- ip_lookup_main_t * lm = &ip6_main.lookup_main;
- ip6_radv_t * radv_info;
- radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
+ ip_lookup_main_t *lm = &ip6_main.lookup_main;
+ ip6_radv_t *radv_info;
+ radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
- vlib_cli_output (vm, "%U is admin %s\n", format_vnet_sw_interface_name, vnm,
+ vlib_cli_output (vm, "%U is admin %s\n",
+ format_vnet_sw_interface_name, vnm,
vnet_get_sw_interface (vnm, sw_if_index),
- (vnet_sw_interface_is_admin_up (vnm, sw_if_index) ? "up" : "down"));
-
- u32 ai;
- u32 *global_scope = 0,i;
- ip_interface_address_t * a;
+ (vnet_sw_interface_is_admin_up (vnm, sw_if_index) ?
+ "up" : "down"));
- vec_validate_init_empty (lm->if_address_pool_index_by_sw_if_index, sw_if_index, ~0);
+ u32 ai;
+ u32 *link_scope = 0, *global_scope = 0;
+ u32 *local_scope = 0, *unknown_scope = 0;
+ ip_interface_address_t *a;
+
+ vec_validate_init_empty (lm->if_address_pool_index_by_sw_if_index,
+ sw_if_index, ~0);
ai = lm->if_address_pool_index_by_sw_if_index[sw_if_index];
- while (ai != (u32)~0)
+ while (ai != (u32) ~ 0)
{
- a = pool_elt_at_index(lm->if_address_pool, ai);
- ip6_address_t * address = ip_interface_address_get_address (lm, a);
-
- if( ip6_address_is_link_local_unicast (address))
- vlib_cli_output (vm, "\tIPv6 is enabled, link-local address is %U\n", format_ip6_address,
- address);
+ a = pool_elt_at_index (lm->if_address_pool, ai);
+ ip6_address_t *address =
+ ip_interface_address_get_address (lm, a);
- if((address->as_u8[0] & 0xe0) == 0x20)
+ if (ip6_address_is_link_local_unicast (address))
+ vec_add1 (link_scope, ai);
+ else if (ip6_address_is_global_unicast (address))
vec_add1 (global_scope, ai);
+ else if (ip6_address_is_local_unicast (address))
+ vec_add1 (local_scope, ai);
+ else
+ vec_add1 (unknown_scope, ai);
ai = a->next_this_sw_interface;
}
- vlib_cli_output (vm, "\tGlobal unicast address(es):\n");
- for (i = 0; i < vec_len (global_scope); i++)
- {
- a = pool_elt_at_index(lm->if_address_pool, global_scope[i]);
- ip6_address_t * address = ip_interface_address_get_address (lm, a);
- ip6_address_t mask, subnet;
-
- subnet = *address;
- ip6_address_mask_from_width(&mask, a->address_length);
- ip6_address_mask(&subnet, &mask);
-
- vlib_cli_output (vm, "\t\t%U, subnet is %U/%d",
- format_ip6_address, address,
- format_ip6_address,&subnet,
- a->address_length);
+ if (vec_len (link_scope))
+ {
+ vlib_cli_output (vm, "\tLink-local address(es):\n");
+ ip6_print_addrs (vm, link_scope);
+ vec_free (link_scope);
+ }
+
+ if (vec_len (local_scope))
+ {
+ vlib_cli_output (vm, "\tLocal unicast address(es):\n");
+ ip6_print_addrs (vm, local_scope);
+ vec_free (local_scope);
+ }
+
+ if (vec_len (global_scope))
+ {
+ vlib_cli_output (vm, "\tGlobal unicast address(es):\n");
+ ip6_print_addrs (vm, global_scope);
+ vec_free (global_scope);
}
- vec_free (global_scope);
+
+ if (vec_len (unknown_scope))
+ {
+ vlib_cli_output (vm, "\tOther-scope address(es):\n");
+ ip6_print_addrs (vm, unknown_scope);
+ vec_free (unknown_scope);
+ }
+
vlib_cli_output (vm, "\tJoined group address(es):\n");
ip6_mldp_group_t *m;
- pool_foreach (m, radv_info->mldp_group_pool, ({
- vlib_cli_output (vm, "\t\t%U\n", format_ip6_address, &m->mcast_address);
- }));
+ /* *INDENT-OFF* */
+ pool_foreach (m, radv_info->mldp_group_pool,
+ ({
+ vlib_cli_output (vm, "\t\t%U\n", format_ip6_address,
+ &m->mcast_address);
+ }));
+ /* *INDENT-ON* */
vlib_cli_output (vm, "\tAdvertised Prefixes:\n");
- ip6_radv_prefix_t * p;
- pool_foreach (p, radv_info->adv_prefixes_pool, ({
- vlib_cli_output (vm, "\t\tprefix %U, length %d\n",
- format_ip6_address, &p->prefix, p->prefix_len);
- }));
-
- vlib_cli_output (vm, "\tMTU is %d\n", radv_info->adv_link_mtu);
+ ip6_radv_prefix_t *p;
+ /* *INDENT-OFF* */
+ pool_foreach (p, radv_info->adv_prefixes_pool,
+ ({
+ vlib_cli_output (vm, "\t\tprefix %U, length %d\n",
+ format_ip6_address, &p->prefix, p->prefix_len);
+ }));
+ /* *INDENT-ON* */
+
+ vlib_cli_output (vm, "\tMTU is %d\n", radv_info->adv_link_mtu);
vlib_cli_output (vm, "\tICMP error messages are unlimited\n");
vlib_cli_output (vm, "\tICMP redirects are disabled\n");
vlib_cli_output (vm, "\tICMP unreachables are not sent\n");
//vlib_cli_output (vm, "\tND reachable time is %d milliseconds\n",);
vlib_cli_output (vm, "\tND advertised reachable time is %d\n",
radv_info->adv_neighbor_reachable_time_in_msec);
- vlib_cli_output (vm, "\tND advertised retransmit interval is %d (msec)\n",
- radv_info->adv_time_in_msec_between_retransmitted_neighbor_solicitations);
+ vlib_cli_output (vm,
+ "\tND advertised retransmit interval is %d (msec)\n",
+ radv_info->
+ adv_time_in_msec_between_retransmitted_neighbor_solicitations);
u32 ra_interval = radv_info->max_radv_interval;
u32 ra_interval_min = radv_info->min_radv_interval;
- vlib_cli_output (vm, "\tND router advertisements are sent every %d seconds (min interval is %d)\n",
+ vlib_cli_output (vm,
+ "\tND router advertisements are sent every %d seconds (min interval is %d)\n",
ra_interval, ra_interval_min);
- vlib_cli_output (vm, "\tND router advertisements live for %d seconds\n",
+ vlib_cli_output (vm,
+ "\tND router advertisements live for %d seconds\n",
radv_info->adv_router_lifetime_in_sec);
- vlib_cli_output (vm, "\tHosts %s stateless autoconfig for addresses\n",
- (radv_info->adv_managed_flag) ? "use" :" don't use");
- vlib_cli_output (vm, "\tND router advertisements sent %d\n", radv_info->n_advertisements_sent);
- vlib_cli_output (vm, "\tND router solicitations received %d\n", radv_info->n_solicitations_rcvd);
- vlib_cli_output (vm, "\tND router solicitations dropped %d\n", radv_info->n_solicitations_dropped);
+ vlib_cli_output (vm,
+ "\tHosts %s stateless autoconfig for addresses\n",
+ (radv_info->adv_managed_flag) ? "use" :
+ " don't use");
+ vlib_cli_output (vm, "\tND router advertisements sent %d\n",
+ radv_info->n_advertisements_sent);
+ vlib_cli_output (vm, "\tND router solicitations received %d\n",
+ radv_info->n_solicitations_rcvd);
+ vlib_cli_output (vm, "\tND router solicitations dropped %d\n",
+ radv_info->n_solicitations_dropped);
}
else
{
- error = clib_error_return (0, "Ipv6 not enabled on interface",
+ error = clib_error_return (0, "IPv6 not enabled on interface",
format_unformat_error, input);
}
return error;
}
-VLIB_CLI_COMMAND (show_ip6_interface_command, static) = {
+/*?
+ * This command is used to display various IPv6 attributes on a given
+ * interface.
+ *
+ * @cliexpar
+ * Example of how to display IPv6 settings:
+ * @cliexstart{show ip6 interface GigabitEthernet2/0/0}
+ * GigabitEthernet2/0/0 is admin up
+ * Link-local address(es):
+ * fe80::ab8/64
+ * Joined group address(es):
+ * ff02::1
+ * ff02::2
+ * ff02::16
+ * ff02::1:ff00:ab8
+ * Advertised Prefixes:
+ * prefix fe80::fe:28ff:fe9c:75b3, length 64
+ * MTU is 1500
+ * ICMP error messages are unlimited
+ * ICMP redirects are disabled
+ * ICMP unreachables are not sent
+ * ND DAD is disabled
+ * ND advertised reachable time is 0
+ * ND advertised retransmit interval is 0 (msec)
+ * ND router advertisements are sent every 200 seconds (min interval is 150)
+ * ND router advertisements live for 600 seconds
+ * Hosts use stateless autoconfig for addresses
+ * ND router advertisements sent 19336
+ * ND router solicitations received 0
+ * ND router solicitations dropped 0
+ * @cliexend
+ * Example of output if IPv6 is not enabled on the interface:
+ * @cliexstart{show ip6 interface GigabitEthernet2/0/0}
+ * show ip6 interface: IPv6 not enabled on interface
+ * @cliexend
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_ip6_interface_command, static) =
+{
.path = "show ip6 interface",
.function = show_ip6_interface_cmd,
- .short_help = "Show ip6 interface <iface name>",
+ .short_help = "show ip6 interface <interface>",
};
+/* *INDENT-ON* */
clib_error_t *
-disable_ip6_interface(vlib_main_t * vm,
- u32 sw_if_index)
+disable_ip6_interface (vlib_main_t * vm, u32 sw_if_index)
{
- clib_error_t * error = 0;
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
+ clib_error_t *error = 0;
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
u32 ri;
/* look up the radv_t information for this interface */
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0);
+ vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index,
+ ~0);
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
-
+
/* if not created - do nothing */
- if(ri != ~0)
+ if (ri != ~0)
{
- vnet_main_t * vnm = vnet_get_main();
- ip6_radv_t * radv_info;
-
- radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
+ vnet_main_t *vnm = vnet_get_main ();
+ ip6_radv_t *radv_info;
+
+ radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
/* check radv_info ref count for other ip6 addresses on this interface */
- if(radv_info->ref_count == 0 )
+ if (radv_info->ref_count == 0)
{
/* essentially "disables" ipv6 on this interface */
error = ip6_add_del_interface_address (vm, sw_if_index,
- &radv_info->link_local_address,
- radv_info->link_local_prefix_len,
- 1 /* is_del */);
-
- ip6_neighbor_sw_interface_add_del (vnm, sw_if_index, 0/* is_add */);
+ &radv_info->
+ link_local_address,
+ radv_info->
+ link_local_prefix_len,
+ 1 /* is_del */ );
+
+ ip6_neighbor_sw_interface_add_del (vnm, sw_if_index,
+ 0 /* is_add */ );
}
}
return error;
}
int
-ip6_interface_enabled(vlib_main_t * vm,
- u32 sw_if_index)
+ip6_interface_enabled (vlib_main_t * vm, u32 sw_if_index)
{
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- u32 ri = ~0;
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ u32 ri = ~0;
- /* look up the radv_t information for this interface */
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0);
+ /* look up the radv_t information for this interface */
+ vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index,
+ ~0);
- ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
+ ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
- return ri != ~0;
+ return ri != ~0;
}
-clib_error_t *
-enable_ip6_interface(vlib_main_t * vm,
- u32 sw_if_index)
+clib_error_t *
+enable_ip6_interface (vlib_main_t * vm, u32 sw_if_index)
{
- clib_error_t * error = 0;
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
+ clib_error_t *error = 0;
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
u32 ri;
int is_add = 1;
/* look up the radv_t information for this interface */
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0);
-
+ vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index,
+ ~0);
+
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
-
+
/* if not created yet */
- if(ri == ~0)
+ if (ri == ~0)
{
- vnet_main_t * vnm = vnet_get_main();
- vnet_sw_interface_t * sw_if0;
-
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_sw_interface_t *sw_if0;
+
sw_if0 = vnet_get_sup_sw_interface (vnm, sw_if_index);
- if(sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
+ if (sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
{
- ethernet_interface_t * eth_if0;
+ ethernet_interface_t *eth_if0;
- eth_if0 = ethernet_get_interface (ðernet_main, sw_if0->hw_if_index);
- if(eth_if0)
+ eth_if0 =
+ ethernet_get_interface (ðernet_main, sw_if0->hw_if_index);
+ if (eth_if0)
{
/* create radv_info. for this interface. This holds all the info needed for router adverts */
- ri = ip6_neighbor_sw_interface_add_del (vnm, sw_if_index, is_add);
+ ri =
+ ip6_neighbor_sw_interface_add_del (vnm, sw_if_index, is_add);
- if(ri != ~0)
+ if (ri != ~0)
{
- ip6_radv_t * radv_info;
+ ip6_radv_t *radv_info;
ip6_address_t link_local_address;
- radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
+ radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
- ip6_link_local_address_from_ethernet_mac_address (&link_local_address,
- eth_if0->address);
+ ip6_link_local_address_from_ethernet_mac_address
+ (&link_local_address, eth_if0->address);
sw_if0 = vnet_get_sw_interface (vnm, sw_if_index);
- if(sw_if0->type == VNET_SW_INTERFACE_TYPE_SUB)
+ if (sw_if0->type == VNET_SW_INTERFACE_TYPE_SUB)
{
/* make up an interface id */
md5_context_t m;
u8 digest[16];
-
+
link_local_address.as_u64[0] = radv_info->randomizer;
-
+
md5_init (&m);
md5_add (&m, &link_local_address, 16);
- md5_finish (&m, digest);
-
- clib_memcpy(&link_local_address, digest, 16);
-
+ md5_finish (&m, digest);
+
+ clib_memcpy (&link_local_address, digest, 16);
+
radv_info->randomizer = link_local_address.as_u64[0];
-
- link_local_address.as_u64[0] = clib_host_to_net_u64 (0xFE80000000000000ULL);
+
+ link_local_address.as_u64[0] =
+ clib_host_to_net_u64 (0xFE80000000000000ULL);
/* clear u bit */
link_local_address.as_u8[8] &= 0xfd;
}
-
+
/* essentially "enables" ipv6 on this interface */
error = ip6_add_del_interface_address (vm, sw_if_index,
- &link_local_address, 64 /* address width */,
- 0 /* is_del */);
-
- if(error)
- ip6_neighbor_sw_interface_add_del (vnm, sw_if_index, !is_add);
+ &link_local_address,
+ 128
+ /* address width */ ,
+ 0 /* is_del */ );
+
+ if (error)
+ ip6_neighbor_sw_interface_add_del (vnm, sw_if_index,
+ !is_add);
else
{
- radv_info->link_local_address = link_local_address;
- radv_info->link_local_prefix_len = 64;
+ radv_info->link_local_address = link_local_address;
+ radv_info->link_local_prefix_len = 64;
}
}
- }
+ }
}
}
return error;
static clib_error_t *
enable_ip6_interface_cmd (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
- vnet_main_t * vnm = vnet_get_main();
- clib_error_t * error = 0;
+ vnet_main_t *vnm = vnet_get_main ();
+ clib_error_t *error = 0;
u32 sw_if_index;
sw_if_index = ~0;
- if (unformat_user (input,
- unformat_vnet_sw_interface, vnm, &sw_if_index))
+ if (unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
{
- enable_ip6_interface(vm, sw_if_index);
+ enable_ip6_interface (vm, sw_if_index);
+ }
+ else
+ {
+ error = clib_error_return (0, "unknown interface\n'",
+ format_unformat_error, input);
+
}
- else
- {
- error = clib_error_return (0, "unknown interface\n'",
- format_unformat_error, input);
-
- }
return error;
}
-VLIB_CLI_COMMAND (enable_ip6_interface_command, static) = {
+/*?
+ * This command is used to enable IPv6 on a given interface.
+ *
+ * @cliexpar
+ * Example of how enable IPv6 on a given interface:
+ * @cliexcmd{enable ip6 interface GigabitEthernet2/0/0}
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (enable_ip6_interface_command, static) =
+{
.path = "enable ip6 interface",
.function = enable_ip6_interface_cmd,
- .short_help = "enable ip6 interface <iface name>",
+ .short_help = "enable ip6 interface <interface>",
};
+/* *INDENT-ON* */
static clib_error_t *
disable_ip6_interface_cmd (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
- vnet_main_t * vnm = vnet_get_main();
- clib_error_t * error = 0;
+ vnet_main_t *vnm = vnet_get_main ();
+ clib_error_t *error = 0;
u32 sw_if_index;
sw_if_index = ~0;
- if (unformat_user (input,
- unformat_vnet_sw_interface, vnm, &sw_if_index))
+ if (unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
{
- error = disable_ip6_interface(vm, sw_if_index);
+ error = disable_ip6_interface (vm, sw_if_index);
+ }
+ else
+ {
+ error = clib_error_return (0, "unknown interface\n'",
+ format_unformat_error, input);
+
}
- else
- {
- error = clib_error_return (0, "unknown interface\n'",
- format_unformat_error, input);
-
- }
return error;
}
-VLIB_CLI_COMMAND (disable_ip6_interface_command, static) = {
- .path = "disable ip6 interface",
+/*?
+ * This command is used to disable IPv6 on a given interface.
+ *
+ * @cliexpar
+ * Example of how disable IPv6 on a given interface:
+ * @cliexcmd{disable ip6 interface GigabitEthernet2/0/0}
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (disable_ip6_interface_command, static) =
+{
+ .path = "disable ip6 interface",
.function = disable_ip6_interface_cmd,
- .short_help = "disable ip6 interface <iface name>",
+ .short_help = "disable ip6 interface <interface>",
};
+/* *INDENT-ON* */
-VLIB_CLI_COMMAND (ip6_nd_command, static) = {
+/*?
+ * This command is used to configure the neighbor discovery
+ * parameters on a given interface. Use the '<em>show ip6 interface</em>'
+ * command to display some of the current neighbor discovery parameters
+ * on a given interface. This command has three formats:
+ *
+ *
+ * <b>Format 1 - Router Advertisement Options:</b> (Only one can be entered in a single command)
+ *
+ * '<em><b>ip6 nd <interface> [no] [ra-managed-config-flag] | [ra-other-config-flag] | [ra-suppress] | [ra-suppress-link-layer] | [ra-send-unicast] | [ra-lifetime <lifetime>] | [ra-initial <cnt> <interval>] | [ra-interval <max-interval> [<min-interval>]] | [ra-cease]</b></em>'
+ *
+ * Where:
+ *
+ * <em>[no] ra-managed-config-flag</em> - Advertises in ICMPv6
+ * router-advertisement messages to use stateful address
+ * auto-configuration to obtain address information (sets the M-bit).
+ * Default is the M-bit is not set and the '<em>no</em>' option
+ * returns it to this default state.
+ *
+ * <em>[no] ra-other-config-flag</em> - Indicates in ICMPv6
+ * router-advertisement messages that hosts use stateful auto
+ * configuration to obtain nonaddress related information (sets
+ * the O-bit). Default is the O-bit is not set and the '<em>no</em>'
+ * option returns it to this default state.
+ *
+ * <em>[no] ra-suppress</em> - Disables sending ICMPv6 router-advertisement
+ * messages. The '<em>no</em>' option implies to enable sending ICMPv6
+ * router-advertisement messages.
+ *
+ * <em>[no] ra-suppress-link-layer</em> - Indicates not to include the
+ * optional source link-layer address in the ICMPv6 router-advertisement
+ * messages. Default is to include the optional source link-layer address
+ * and the '<em>no</em>' option returns it to this default state.
+ *
+ * <em>[no] ra-send-unicast</em> - Use the source address of the
+ * router-solicitation message if availiable. The default is to use
+ * multicast address of all nodes, and the '<em>no</em>' option returns
+ * it to this default state.
+ *
+ * <em>[no] ra-lifetime <lifetime></em> - Advertises the lifetime of a
+ * default router in ICMPv6 router-advertisement messages. The range is
+ * from 0 to 9000 seconds. '<em><lifetime></em>' must be greater than
+ * '<em><max-interval></em>'. The default value is 600 seconds and the
+ * '<em>no</em>' option returns it to this default value.
+ *
+ * <em>[no] ra-initial <cnt> <interval></em> - Number of initial ICMPv6
+ * router-advertisement messages sent and the interval between each
+ * message. Range for count is 1 - 3 and default is 3. Range for interval
+ * is 1 to 16 seconds, and default is 16 seconds. The '<em>no</em>' option
+ * returns both to their default value.
+ *
+ * <em>[no] ra-interval <max-interval> [<min-interval>]</em> - Configures the
+ * interval between sending ICMPv6 router-advertisement messages. The
+ * range for max-interval is from 4 to 200 seconds. min-interval can not
+ * be more than 75% of max-interval. If not set, min-interval will be
+ * set to 75% of max-interval. The range for min-interval is from 3 to
+ * 150 seconds. The '<em>no</em>' option returns both to their default
+ * value.
+ *
+ * <em>[no] ra-cease</em> - Cease sending ICMPv6 router-advertisement messages.
+ * The '<em>no</em>' options implies to start (or restart) sending
+ * ICMPv6 router-advertisement messages.
+ *
+ *
+ * <b>Format 2 - Prefix Options:</b>
+ *
+ * '<em><b>ip6 nd <interface> [no] prefix <ip6-address>/<width> [<valid-lifetime> <pref-lifetime> | infinite] [no-advertise] [off-link] [no-autoconfig] [no-onlink]</b></em>'
+ *
+ * Where:
+ *
+ * <em>no</em> - All additional flags are ignored and the prefix is deleted.
+ *
+ * <em><valid-lifetime> <pref-lifetime></em> - '<em><valid-lifetime></em>' is the
+ * length of time in seconds during what the prefix is valid for the purpose of
+ * on-link determination. Range is 7203 to 2592000 seconds and default is 2592000
+ * seconds (30 days). '<em><pref-lifetime></em>' is the prefered-lifetime and is the
+ * length of time in seconds during what addresses generated from the prefix remain
+ * preferred. Range is 0 to 604800 seconds and default is 604800 seconds (7 days).
+ *
+ * <em>infinite</em> - Both '<em><valid-lifetime></em>' and '<em><<pref-lifetime></em>'
+ * are inifinte, no timeout.
+ *
+ * <em>no-advertise</em> - Do not send full router address in prefix
+ * advertisement. Default is to advertise (i.e. - This flag is off by default).
+ *
+ * <em>off-link</em> - Prefix is off-link, clear L-bit in packet. Default is on-link
+ * (i.e. - This flag is off and L-bit in packet is set by default and this prefix can
+ * be used for on-link determination). '<em>no-onlink</em>' also controls the L-bit.
+ *
+ * <em>no-autoconfig</em> - Do not use prefix for autoconfiguration, clear A-bit in packet.
+ * Default is autoconfig (i.e. - This flag is off and A-bit in packet is set by default.
+ *
+ * <em>no-onlink</em> - Do not use prefix for onlink determination, clear L-bit in packet.
+ * Default is on-link (i.e. - This flag is off and L-bit in packet is set by default and
+ * this prefix can be used for on-link determination). '<em>off-link</em>' also controls
+ * the L-bit.
+ *
+ *
+ * <b>Format 3: - Default of Prefix:</b>
+ *
+ * '<em><b>ip6 nd <interface> [no] prefix <ip6-address>/<width> default</b></em>'
+ *
+ * When a new prefix is added (or existing one is being overwritten) <em>default</em>
+ * uses default values for the prefix. If <em>no</em> is used, the <em>default</em>
+ * is ignored and the prefix is deleted.
+ *
+ *
+ * @cliexpar
+ * Example of how set a router advertisement option:
+ * @cliexcmd{ip6 nd GigabitEthernet2/0/0 ra-interval 100 20}
+ * Example of how to add a prefix:
+ * @cliexcmd{ip6 nd GigabitEthernet2/0/0 prefix fe80::fe:28ff:fe9c:75b3/64 infinite no-advertise}
+ * Example of how to delete a prefix:
+ * @cliexcmd{ip6 nd GigabitEthernet2/0/0 no prefix fe80::fe:28ff:fe9c:75b3/64}
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ip6_nd_command, static) =
+{
.path = "ip6 nd",
- .short_help = "Set ip6 neighbor discovery parameters",
+ .short_help = "ip6 nd <interface> ...",
.function = ip6_neighbor_cmd,
};
+/* *INDENT-ON* */
clib_error_t *
-set_ip6_link_local_address(vlib_main_t * vm,
- u32 sw_if_index,
- ip6_address_t *address,
- u8 address_length)
+set_ip6_link_local_address (vlib_main_t * vm,
+ u32 sw_if_index,
+ ip6_address_t * address, u8 address_length)
{
- clib_error_t * error = 0;
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
+ clib_error_t *error = 0;
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
u32 ri;
- ip6_radv_t * radv_info;
- vnet_main_t * vnm = vnet_get_main();
+ ip6_radv_t *radv_info;
+ vnet_main_t *vnm = vnet_get_main ();
- if( !ip6_address_is_link_local_unicast (address))
+ if (!ip6_address_is_link_local_unicast (address))
{
vnm->api_errno = VNET_API_ERROR_ADDRESS_NOT_LINK_LOCAL;
- return(error = clib_error_return (0, "address not link-local",
- format_unformat_error));
+ return (error = clib_error_return (0, "address not link-local",
+ format_unformat_error));
}
/* call enable ipv6 */
- enable_ip6_interface(vm, sw_if_index);
-
+ enable_ip6_interface (vm, sw_if_index);
+
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
-
- if(ri != ~0)
+
+ if (ri != ~0)
{
- radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
+ radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
/* save if link local address (overwrite default) */
-
+
/* delete the old one */
error = ip6_add_del_interface_address (vm, sw_if_index,
&radv_info->link_local_address,
- radv_info->link_local_prefix_len /* address width */,
- 1 /* is_del */);
-
- if(!error)
+ radv_info->link_local_prefix_len
+ /* address width */ ,
+ 1 /* is_del */ );
+
+ if (!error)
{
/* add the new one */
error = ip6_add_del_interface_address (vm, sw_if_index,
- address ,
- address_length /* address width */,
- 0/* is_del */);
-
- if(!error)
+ address, address_length
+ /* address width */ ,
+ 0 /* is_del */ );
+
+ if (!error)
{
radv_info->link_local_address = *address;
- radv_info->link_local_prefix_len = address_length;
+ radv_info->link_local_prefix_len = address_length;
}
}
}
}
return error;
}
-
+
clib_error_t *
set_ip6_link_local_address_cmd (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
- vnet_main_t * vnm = vnet_get_main();
- clib_error_t * error = 0;
+ vnet_main_t *vnm = vnet_get_main ();
+ clib_error_t *error = 0;
u32 sw_if_index;
ip6_address_t ip6_addr;
u32 addr_len = 0;
-
- if (unformat_user (input,
- unformat_vnet_sw_interface, vnm, &sw_if_index))
+
+ if (unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
{
/* get the rest of the command */
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- if(unformat (input, "%U/%d",
- unformat_ip6_address, &ip6_addr,
- &addr_len))
+ if (unformat (input, "%U/%d",
+ unformat_ip6_address, &ip6_addr, &addr_len))
break;
else
- return(unformat_parse_error (input));
+ return (unformat_parse_error (input));
}
}
- error = set_ip6_link_local_address(vm,
- sw_if_index,
- &ip6_addr,
- addr_len);
+ error = set_ip6_link_local_address (vm, sw_if_index, &ip6_addr, addr_len);
return error;
}
-VLIB_CLI_COMMAND (set_ip6_link_local_address_command, static) = {
+/*?
+ * This command is used to assign an IPv6 Link-local address to an
+ * interface. This command will enable IPv6 on an interface if it
+ * is not already enabled. Use the '<em>show ip6 interface</em>' command
+ * to display the assigned Link-local address.
+ *
+ * @cliexpar
+ * Example of how to assign an IPv6 Link-local address to an interface:
+ * @cliexcmd{set ip6 link-local address GigabitEthernet2/0/0 FE80::AB8/64}
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (set_ip6_link_local_address_command, static) =
+{
.path = "set ip6 link-local address",
- .short_help = "Set ip6 interface link-local address <intfc> <address.>",
+ .short_help = "set ip6 link-local address <interface> <ip6-address>/<width>",
.function = set_ip6_link_local_address_cmd,
};
+/* *INDENT-ON* */
/* callback when an interface address is added or deleted */
static void
u32 sw_if_index,
ip6_address_t * address,
u32 address_length,
- u32 if_address_index,
- u32 is_delete)
+ u32 if_address_index, u32 is_delete)
{
- vnet_main_t * vnm = vnet_get_main();
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
+ vnet_main_t *vnm = vnet_get_main ();
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
u32 ri;
- vlib_main_t * vm = vnm->vlib_main;
- ip6_radv_t * radv_info;
+ vlib_main_t *vm = vnm->vlib_main;
+ ip6_radv_t *radv_info;
ip6_address_t a;
- ip6_mldp_group_t *mcast_group_info;
+ ip6_mldp_group_t *mcast_group_info;
/* create solicited node multicast address for this interface adddress */
ip6_set_solicited_node_multicast_address (&a, 0);
-
+
a.as_u8[0xd] = address->as_u8[0xd];
a.as_u8[0xe] = address->as_u8[0xe];
a.as_u8[0xf] = address->as_u8[0xf];
-
- if(!is_delete)
+
+ if (!is_delete)
{
/* try to create radv_info - does nothing if ipv6 already enabled */
- enable_ip6_interface(vm, sw_if_index);
+ enable_ip6_interface (vm, sw_if_index);
/* look up the radv_t information for this interface */
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0);
+ vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index,
+ sw_if_index, ~0);
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
- if(ri != ~0)
+ if (ri != ~0)
{
/* get radv_info */
radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
/* add address */
- if( !ip6_address_is_link_local_unicast (address))
+ if (!ip6_address_is_link_local_unicast (address))
radv_info->ref_count++;
/* lookup prefix info for this address on this interface */
- uword * p = mhash_get (&radv_info->address_to_mldp_index, &a);
- mcast_group_info = p ? pool_elt_at_index (radv_info->mldp_group_pool, p[0]) : 0;
+ uword *p = mhash_get (&radv_info->address_to_mldp_index, &a);
+ mcast_group_info =
+ p ? pool_elt_at_index (radv_info->mldp_group_pool, p[0]) : 0;
/* add -solicted node multicast address */
- if(!mcast_group_info)
+ if (!mcast_group_info)
{
/* add */
u32 mi;
pool_get (radv_info->mldp_group_pool, mcast_group_info);
-
+
mi = mcast_group_info - radv_info->mldp_group_pool;
- mhash_set (&radv_info->address_to_mldp_index, &a, mi, /* old_value */ 0);
-
+ mhash_set (&radv_info->address_to_mldp_index, &a, mi,
+ /* old_value */ 0);
+
mcast_group_info->type = 4;
mcast_group_info->mcast_source_address_pool = 0;
mcast_group_info->num_sources = 0;
- clib_memcpy(&mcast_group_info->mcast_address, &a, sizeof(ip6_address_t));
- }
+ clib_memcpy (&mcast_group_info->mcast_address, &a,
+ sizeof (ip6_address_t));
+ }
}
}
else
/* delete */
/* look up the radv_t information for this interface */
- vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0);
+ vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index,
+ sw_if_index, ~0);
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
- if(ri != ~0)
+ if (ri != ~0)
{
/* get radv_info */
radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
/* lookup prefix info for this address on this interface */
- uword * p = mhash_get (&radv_info->address_to_mldp_index, &a);
- mcast_group_info = p ? pool_elt_at_index (radv_info->mldp_group_pool, p[0]) : 0;
-
- if(mcast_group_info)
+ uword *p = mhash_get (&radv_info->address_to_mldp_index, &a);
+ mcast_group_info =
+ p ? pool_elt_at_index (radv_info->mldp_group_pool, p[0]) : 0;
+
+ if (mcast_group_info)
{
- mhash_unset (&radv_info->address_to_mldp_index, &a,/* old_value */ 0);
+ mhash_unset (&radv_info->address_to_mldp_index, &a,
+ /* old_value */ 0);
pool_put (radv_info->mldp_group_pool, mcast_group_info);
}
radv_info->all_routers_mcast = 0;
/* add address */
- if( !ip6_address_is_link_local_unicast (address))
+ if (!ip6_address_is_link_local_unicast (address))
radv_info->ref_count--;
}
}
}
-clib_error_t *ip6_set_neighbor_limit (u32 neighbor_limit)
+clib_error_t *
+ip6_set_neighbor_limit (u32 neighbor_limit)
{
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
nm->limit_neighbor_cache_size = neighbor_limit;
return 0;
}
-
-static void
-ip6_neighbor_entry_del_adj(ip6_neighbor_t *n, u32 adj_index)
-{
- int done = 0;
- int i;
- while (!done)
- {
- vec_foreach_index(i, n->adjacencies)
- if (vec_elt(n->adjacencies, i) == adj_index)
- {
- vec_del1(n->adjacencies, i);
- continue;
- }
- done = 1;
- }
-}
-
-static void
-ip6_neighbor_entry_add_adj(ip6_neighbor_t *n, u32 adj_index)
+static clib_error_t *
+ip6_neighbor_init (vlib_main_t * vm)
{
- int i;
- vec_foreach_index(i, n->adjacencies)
- if (vec_elt(n->adjacencies, i) == adj_index)
- return;
- vec_add1(n->adjacencies, adj_index);
-}
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ ip6_main_t *im = &ip6_main;
-static void
-ip6_neighbor_add_del_adj_cb (struct ip_lookup_main_t * lm,
- u32 adj_index,
- ip_adjacency_t * adj,
- u32 is_del)
-{
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- ip6_neighbor_key_t k;
- ip6_neighbor_t *n = 0;
- uword * p;
- u32 ai;
-
- for(ai = adj->heap_handle; ai < adj->heap_handle + adj->n_adj ; ai++)
- {
- adj = ip_get_adjacency (lm, ai);
- if (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP &&
- (adj->arp.next_hop.ip6.as_u64[0] || adj->arp.next_hop.ip6.as_u64[1]))
- {
- k.sw_if_index = adj->rewrite_header.sw_if_index;
- k.ip6_address.as_u64[0] = adj->arp.next_hop.ip6.as_u64[0];
- k.ip6_address.as_u64[1] = adj->arp.next_hop.ip6.as_u64[1];
- k.pad = 0;
- p = mhash_get (&nm->neighbor_index_by_key, &k);
- if (p)
- n = pool_elt_at_index (nm->neighbor_pool, p[0]);
- }
- else
- continue;
-
- if (is_del)
- {
- if (!n)
- clib_warning("Adjacency contains unknown ND next hop %U (del)",
- format_ip46_address, &adj->arp.next_hop, IP46_TYPE_IP6);
- else
- ip6_neighbor_entry_del_adj(n, adj->heap_handle);
- }
- else /* add */
- {
- if (!n)
- clib_warning("Adjacency contains unknown ND next hop %U (add)",
- format_ip46_address, &adj->arp.next_hop, IP46_TYPE_IP6);
- else
- ip6_neighbor_entry_add_adj(n, adj->heap_handle);
- }
- }
-}
-
-static clib_error_t * ip6_neighbor_init (vlib_main_t * vm)
-{
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- ip6_main_t * im = &ip6_main;
- ip_lookup_main_t * lm = &im->lookup_main;
-
mhash_init (&nm->neighbor_index_by_key,
/* value size */ sizeof (uword),
/* key size */ sizeof (ip6_neighbor_key_t));
- icmp6_register_type (vm, ICMP6_neighbor_solicitation, ip6_icmp_neighbor_solicitation_node.index);
- icmp6_register_type (vm, ICMP6_neighbor_advertisement, ip6_icmp_neighbor_advertisement_node.index);
- icmp6_register_type (vm, ICMP6_router_solicitation, ip6_icmp_router_solicitation_node.index);
- icmp6_register_type (vm, ICMP6_router_advertisement, ip6_icmp_router_advertisement_node.index);
+ icmp6_register_type (vm, ICMP6_neighbor_solicitation,
+ ip6_icmp_neighbor_solicitation_node.index);
+ icmp6_register_type (vm, ICMP6_neighbor_advertisement,
+ ip6_icmp_neighbor_advertisement_node.index);
+ icmp6_register_type (vm, ICMP6_router_solicitation,
+ ip6_icmp_router_solicitation_node.index);
+ icmp6_register_type (vm, ICMP6_router_advertisement,
+ ip6_icmp_router_advertisement_node.index);
/* handler node for ip6 neighbor discovery events and timers */
vlib_register_node (vm, &ip6_icmp_neighbor_discovery_event_node);
/* add call backs */
- ip6_add_del_interface_address_callback_t cb;
- memset(&cb, 0x0, sizeof(ip6_add_del_interface_address_callback_t));
-
+ ip6_add_del_interface_address_callback_t cb;
+ memset (&cb, 0x0, sizeof (ip6_add_del_interface_address_callback_t));
+
/* when an interface address changes... */
cb.function = ip6_neighbor_add_del_interface_address;
cb.function_opaque = 0;
/* value size */ sizeof (uword),
/* key size */ sizeof (ip6_address_t));
+ mhash_init (&nm->mac_changes_by_address,
+ /* value size */ sizeof (uword),
+ /* key size */ sizeof (ip6_address_t));
+
/* default, configurable */
nm->limit_neighbor_cache_size = 50000;
#if 0
/* $$$$ Hack fix for today */
- vec_validate_init_empty
- (im->discover_neighbor_next_index_by_hw_if_index, 32, 0 /* drop */);
+ vec_validate_init_empty
+ (im->discover_neighbor_next_index_by_hw_if_index, 32, 0 /* drop */ );
#endif
- ip_register_add_del_adjacency_callback(lm, ip6_neighbor_add_del_adj_cb);
-
return 0;
}
VLIB_INIT_FUNCTION (ip6_neighbor_init);
-void vnet_register_ip6_neighbor_resolution_event (vnet_main_t * vnm,
- void * address_arg,
- uword node_index,
- uword type_opaque,
- uword data)
+void
+vnet_register_ip6_neighbor_resolution_event (vnet_main_t * vnm,
+ void *address_arg,
+ uword node_index,
+ uword type_opaque, uword data)
{
- ip6_neighbor_main_t * nm = &ip6_neighbor_main;
- ip6_address_t * address = address_arg;
- uword * p;
- pending_resolution_t * pr;
-
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ ip6_address_t *address = address_arg;
+ uword *p;
+ pending_resolution_t *pr;
+
pool_get (nm->pending_resolutions, pr);
pr->next_index = ~0;
pr->next_index = p[0];
mhash_unset (&nm->pending_resolutions_by_address, address, 0);
}
-
- mhash_set (&nm->pending_resolutions_by_address, address,
- pr - nm->pending_resolutions, 0 /* old value */);
+
+ mhash_set (&nm->pending_resolutions_by_address, address,
+ pr - nm->pending_resolutions, 0 /* old value */ );
+}
+
+int
+vnet_add_del_ip6_nd_change_event (vnet_main_t * vnm,
+ void *data_callback,
+ u32 pid,
+ void *address_arg,
+ uword node_index,
+ uword type_opaque, uword data, int is_add)
+{
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ ip6_address_t *address = address_arg;
+ uword *p;
+ pending_resolution_t *mc;
+ void (*fp) (u32, u8 *) = data_callback;
+
+ if (is_add)
+ {
+ pool_get (nm->mac_changes, mc);
+
+ mc->next_index = ~0;
+ mc->node_index = node_index;
+ mc->type_opaque = type_opaque;
+ mc->data = data;
+ mc->data_callback = data_callback;
+ mc->pid = pid;
+
+ p = mhash_get (&nm->mac_changes_by_address, address);
+ if (p)
+ {
+ /* Insert new resolution at the head of the list */
+ mc->next_index = p[0];
+ mhash_unset (&nm->mac_changes_by_address, address, 0);
+ }
+
+ mhash_set (&nm->mac_changes_by_address, address,
+ mc - nm->mac_changes, 0);
+ return 0;
+ }
+ else
+ {
+ u32 index;
+ pending_resolution_t *mc_last = 0;
+
+ p = mhash_get (&nm->mac_changes_by_address, address);
+ if (p == 0)
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+
+ index = p[0];
+
+ while (index != (u32) ~ 0)
+ {
+ mc = pool_elt_at_index (nm->mac_changes, index);
+ if (mc->node_index == node_index &&
+ mc->type_opaque == type_opaque && mc->pid == pid)
+ {
+ /* Clients may need to clean up pool entries, too */
+ if (fp)
+ (*fp) (mc->data, 0 /* no new mac addrs */ );
+ if (index == p[0])
+ {
+ mhash_unset (&nm->mac_changes_by_address, address, 0);
+ if (mc->next_index != ~0)
+ mhash_set (&nm->mac_changes_by_address, address,
+ mc->next_index, 0);
+ pool_put (nm->mac_changes, mc);
+ return 0;
+ }
+ else
+ {
+ ASSERT (mc_last);
+ mc_last->next_index = mc->next_index;
+ pool_put (nm->mac_changes, mc);
+ return 0;
+ }
+ }
+ mc_last = mc;
+ index = mc->next_index;
+ }
+
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+ }
}
+int
+vnet_ip6_nd_term (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_buffer_t * p0,
+ ethernet_header_t * eth,
+ ip6_header_t * ip, u32 sw_if_index, u16 bd_index, u8 shg)
+{
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ icmp6_neighbor_solicitation_or_advertisement_header_t *ndh;
+ pending_resolution_t *mc;
+ uword *p;
+
+ ndh = ip6_next_header (ip);
+ if (ndh->icmp.type != ICMP6_neighbor_solicitation &&
+ ndh->icmp.type != ICMP6_neighbor_advertisement)
+ return 0;
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (p0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ u8 *t0 = vlib_add_trace (vm, node, p0,
+ sizeof (icmp6_input_trace_t));
+ clib_memcpy (t0, ip, sizeof (icmp6_input_trace_t));
+ }
+
+ /* Check if anyone want ND events for L2 BDs */
+ p = mhash_get (&nm->mac_changes_by_address, &ip6a_zero);
+ if (p && shg == 0 && /* Only SHG 0 interface which is more likely local */
+ !ip6_address_is_link_local_unicast (&ip->src_address))
+ {
+ u32 next_index = p[0];
+ while (next_index != (u32) ~ 0)
+ {
+ int (*fp) (u32, u8 *, u32, ip6_address_t *);
+ int rv = 1;
+ mc = pool_elt_at_index (nm->mac_changes, next_index);
+ fp = mc->data_callback;
+ /* Call the callback, return 1 to suppress dup events */
+ if (fp)
+ rv = (*fp) (mc->data,
+ eth->src_address, sw_if_index, &ip->src_address);
+ /* Signal the resolver process */
+ if (rv == 0)
+ vlib_process_signal_event (vm, mc->node_index,
+ mc->type_opaque, mc->data);
+ next_index = mc->next_index;
+ }
+ }
+
+ /* Check if MAC entry exsist for solicited target IP */
+ if (ndh->icmp.type == ICMP6_neighbor_solicitation)
+ {
+ icmp6_neighbor_discovery_ethernet_link_layer_address_option_t *opt;
+ l2_bridge_domain_t *bd_config;
+ u8 *macp;
+
+ opt = (void *) (ndh + 1);
+ if ((opt->header.type !=
+ ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address) ||
+ (opt->header.n_data_u64s != 1))
+ return 0; /* source link layer address option not present */
+
+ bd_config = vec_elt_at_index (l2input_main.bd_configs, bd_index);
+ macp =
+ (u8 *) hash_get_mem (bd_config->mac_by_ip6, &ndh->target_address);
+ if (macp)
+ { /* found ip-mac entry, generate eighbor advertisement response */
+ int bogus_length;
+ vlib_node_runtime_t *error_node =
+ vlib_node_get_runtime (vm, ip6_icmp_input_node.index);
+ ip->dst_address = ip->src_address;
+ ip->src_address = ndh->target_address;
+ ip->hop_limit = 255;
+ opt->header.type =
+ ICMP6_NEIGHBOR_DISCOVERY_OPTION_target_link_layer_address;
+ clib_memcpy (opt->ethernet_address, macp, 6);
+ ndh->icmp.type = ICMP6_neighbor_advertisement;
+ ndh->advertisement_flags = clib_host_to_net_u32
+ (ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_SOLICITED |
+ ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_OVERRIDE);
+ ndh->icmp.checksum = 0;
+ ndh->icmp.checksum =
+ ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip, &bogus_length);
+ clib_memcpy (eth->dst_address, eth->src_address, 6);
+ clib_memcpy (eth->src_address, macp, 6);
+ vlib_error_count (vm, error_node->node_index,
+ ICMP6_ERROR_NEIGHBOR_ADVERTISEMENTS_TX, 1);
+ return 1;
+ }
+ }
+
+ return 0;
+
+}
+
+void
+ethernet_ndp_change_mac (vlib_main_t * vm, u32 sw_if_index)
+{
+ ip6_neighbor_main_t *nm = &ip6_neighbor_main;
+ ip6_neighbor_t *n;
+
+ /* *INDENT-OFF* */
+ pool_foreach (n, nm->neighbor_pool,
+ ({
+ if (n->key.sw_if_index == sw_if_index)
+ {
+ adj_nbr_walk_nh6 (sw_if_index,
+ &n->key.ip6_address,
+ ip6_nd_mk_complete_walk, n);
+ }
+ }));
+ /* *INDENT-ON* */
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff