igmp_main_t igmp_main;
-/* clear all (S,G)s on specified config and remove this config from pool */
+void
+igmp_clear_group (igmp_config_t * config, igmp_group_t * group)
+{
+ igmp_src_t *src;
+
+ ASSERT (config);
+ ASSERT (group);
+
+ IGMP_DBG ("group_type %u, sw_if_index %d", group->type,
+ config->sw_if_index);
+
+ /* *INDENT-OFF* */
+ pool_foreach (src, group->srcs, (
+ {
+ clib_mem_free (src->key);
+ }));
+ /* *INDENT-ON* */
+ pool_free (group->srcs);
+ hash_free (group->igmp_src_by_key);
+
+ hash_unset_mem (config->igmp_group_by_key, group->key);
+ clib_mem_free (group->key);
+ pool_put (config->groups, group);
+}
+
void
igmp_clear_config (igmp_config_t * config)
{
igmp_main_t *im = &igmp_main;
- igmp_sg_t *sg;
+ igmp_group_t *group;
ASSERT (config);
/* *INDENT-OFF* */
- pool_foreach (sg, config->sg, (
+ pool_foreach (group, config->groups, (
{
- clib_mem_free (sg->key);
+ igmp_clear_group (config, group);
}));
/* *INDENT-ON* */
- pool_free (config->sg);
- hash_free (config->igmp_sg_by_key);
+ pool_free (config->groups);
+ hash_free (config->igmp_group_by_key);
hash_unset_mem (im->igmp_config_by_sw_if_index, &config->sw_if_index);
pool_put (im->configs, config);
}
-/* sort igmp timers, so that the first to expire is at end */
+/** \brief igmp timer compare
+ @param _a - igmp timer
+ @param _b - igmp timer
+
+ Compare function for igmp_timer_t sorting.
+*/
int
igmp_timer_compare (const void *_a, const void *_b)
{
IGMP_PROCESS_EVENT_UPDATE_TIMER, 0);
}
-/* create new per interface timer
- *
- * - delayed reports
- * - query msg
- * - query resp
- */
-
void
igmp_create_int_timer (f64 time, u32 sw_if_index,
igmp_timer_function_t * func)
}
void
-igmp_create_sg_timer (f64 time, u32 sw_if_index, igmp_sg_key_t * key,
- igmp_timer_function_t * func)
+igmp_create_group_timer (f64 time, u32 sw_if_index, igmp_key_t * gkey,
+ igmp_timer_function_t * func)
+{
+ igmp_main_t *im = &igmp_main;
+ igmp_timer_t *timer;
+
+ pool_get (im->timers, timer);
+ memset (timer, 0, sizeof (igmp_timer_t));
+ timer->func = func;
+ timer->exp_time = time;
+ timer->sw_if_index = sw_if_index;
+
+
+ ASSERT (gkey);
+ /* duplicate keys, to prevent segmentation fault if (S,G) is removed */
+ timer->data = clib_mem_alloc (sizeof (igmp_key_t));
+ clib_memcpy (&((igmp_key_t *) timer->data)[0], gkey, sizeof (igmp_key_t));
+
+ igmp_sort_timers (im->timers);
+}
+
+void
+igmp_create_src_timer (f64 time, u32 sw_if_index, igmp_key_t * gkey,
+ igmp_key_t * skey, igmp_timer_function_t * func)
{
igmp_main_t *im = &igmp_main;
igmp_timer_t *timer;
timer->func = func;
timer->exp_time = time;
timer->sw_if_index = sw_if_index;
- /* duplicate key, to prevent segmentation fault if (S,G) is removed */
- timer->data = clib_mem_alloc (sizeof (igmp_sg_key_t));
- clib_memcpy (timer->data, key, sizeof (igmp_sg_key_t));
+
+ ASSERT (gkey);
+ ASSERT (skey);
+ /* duplicate keys, to prevent segmentation fault if (S,G) is removed */
+ timer->data = clib_mem_alloc (sizeof (igmp_key_t) * 2);
+ clib_memcpy (&((igmp_key_t *) timer->data)[0], gkey, sizeof (igmp_key_t));
+ clib_memcpy (&((igmp_key_t *) timer->data)[1], skey, sizeof (igmp_key_t));
igmp_sort_timers (im->timers);
}
-/* get next timer to expire */
+/** \brief igmp get next timer
+ @param im - igmp main
+
+ Get next timer.
+*/
always_inline igmp_timer_t *
igmp_get_next_timer (igmp_main_t * im)
{
}
*/
-/* create IGMPv3 report with single (S,G)
- * used to send state chenge reports
+/* TODO: divide (S,G)s to multiple reports...
+ * - create report limited by <packet size|number of (S,G)s>?
+ * - save loop state
+ * - on next timer continue loop
+ * - case of new query -> reset loop
*/
+
+/** \brief igmp create report all (v3)
+ @param b - vlib buffer
+ @param config - igmp configuration
+ @param group - igmp group
+
+ Create IGMPv3 report. If group is NULL, send all groups on interface.
+*/
static void
-igmp_create_report_v31 (vlib_buffer_t * b, igmp_config_t * config)
+igmp_create_report_v3 (vlib_buffer_t * b, igmp_config_t * config,
+ igmp_group_t * group)
{
ip_csum_t sum;
u16 csum;
- igmp_main_t *im = &igmp_main;
- igmp_sg_t *sg;
u32 len = 0;
+ int i;
- sg = vec_elt_at_index (config->sg, im->next_index.sg_index);
+ igmp_src_t *src;
+
+ igmp_membership_group_v3_t *igmp_group;
len = sizeof (igmp_membership_report_v3_t);
+
igmp_membership_report_v3_t *igmp =
(igmp_membership_report_v3_t *) (vlib_buffer_get_current (b));
memset (igmp, 0, sizeof (igmp_membership_report_v3_t));
igmp->header.type = IGMP_TYPE_membership_report_v3;
- igmp->n_groups = clib_host_to_net_u16 (1);
+ igmp->n_groups =
+ clib_net_to_host_u16 ((group) ? 1 : pool_elts (config->groups));
- len += sizeof (igmp_membership_group_v3_t);
- memset (igmp->groups, 0, sizeof (igmp_membership_group_v3_t));
- igmp->groups[0].type = sg->group_type;
- igmp->groups[0].n_aux_u32s = 0;
- clib_memcpy (&igmp->groups[0].dst_address, &sg->gaddr.ip4,
- sizeof (ip4_address_t));
-
- igmp->groups[0].n_src_addresses = clib_host_to_net_u16 (1);
-
- len += sizeof (ip4_address_t);
- clib_memcpy (&igmp->groups[0].src_addresses[0], &sg->saddr.ip4,
- sizeof (ip4_address_t));
-
- sum = ip_incremental_checksum (0, igmp, len);
- csum = ~ip_csum_fold (sum);
- igmp->header.checksum = csum;
+ /* get pointer to first group */
+ igmp_group = igmp->groups;
- b->current_data += len;
- b->current_length += len;
-}
-
-u8
-ip4_lookup (ip4_address_t * a, igmp_membership_report_v3_t * igmp, u16 n,
- igmp_membership_group_v3_type_t type)
-{
- u16 i;
- u8 rv = 0;
- u32 l = sizeof (igmp_membership_report_v3_t);
-
- for (i = 0; i < n; i++)
+ /* if group is not NULL, send the specified group */
+ if (group)
{
- if ((!ip4_address_compare (a, &group_ptr (igmp, l)->dst_address)) &&
- (type == group_ptr (igmp, l)->type))
+ memset (igmp_group, 0, sizeof (igmp_membership_group_v3_t));
+ igmp_group->type = group->type;
+ igmp_group->n_src_addresses =
+ clib_host_to_net_u16 (pool_elts (group->srcs));
+ igmp_group->dst_address = group->addr.ip4;
+ i = 0;
+ /* *INDENT-OFF* */
+ pool_foreach (src, group->srcs, (
{
- rv = 1;
- break;
- }
- l += sizeof (igmp_membership_group_v3_t) +
- clib_net_to_host_u16 (group_ptr (igmp, l)->n_src_addresses) *
- sizeof (ip4_address_t);
+ igmp_group->src_addresses[i++] = src->addr.ip4;
+ }));
+ /* *INDENT-ON* */
+ len += sizeof (ip4_address_t) * i;
+ len += sizeof (igmp_membership_group_v3_t);
}
-
- return rv;
-}
-
-/* create IGMPv3 report with all (S,G)s on config
- * used to respond to general queries
- */
-static void
-igmp_create_report_v32 (vlib_buffer_t * b, igmp_config_t * config)
-{
- ip_csum_t sum;
- u16 csum;
- igmp_sg_t *sg0, *sg1;
- u32 len = 0;
- u16 n_groups = 0, n_srcs = 0;
- u32 grp_s = sizeof (igmp_membership_group_v3_t);
-
- len = sizeof (igmp_membership_report_v3_t);
- igmp_membership_report_v3_t *igmp =
- (igmp_membership_report_v3_t *) (vlib_buffer_get_current (b));
- memset (igmp, 0, sizeof (igmp_membership_report_v3_t));
-
- igmp->header.type = IGMP_TYPE_membership_report_v3;
-
-/* TODO: divide (S,G)s to multiple reports...
- * - create report limited by <packet size|number of (S,G)s>?
- * - save loop state
- * - on next timer continue loop
- * - case of new query -> reset loop
- */
- /* *INDENT-OFF* */
- pool_foreach (sg0, config->sg, (
+ else
{
- if (ip4_lookup (&sg0->gaddr.ip4, igmp, n_groups, sg0->group_type))
- continue;
- memset (igmp + len, 0, grp_s);
- clib_memcpy (&group_ptr (igmp, len)->dst_address, &sg0->gaddr.ip4, sizeof (ip4_address_t));
- group_ptr (igmp, len)->type = sg0->group_type;
- len += grp_s;
- n_srcs = 0;
- pool_foreach (sg1, config->sg, (
+ /* *INDENT-OFF* */
+ pool_foreach (group, config->groups, (
{
- if ((!ip4_address_compare (&group_ptr (igmp, len - grp_s)->dst_address,
- &sg1->gaddr.ip4)) && (group_ptr (igmp, len - grp_s)->type == (sg1->group_type)))
+ memset (igmp_group, 0, sizeof (igmp_membership_group_v3_t));
+ igmp_group->type = group->type;
+ igmp_group->n_src_addresses =
+ clib_host_to_net_u16 (pool_elts (group->srcs));
+ igmp_group->dst_address = group->addr.ip4;
+ i = 0;
+ pool_foreach (src, group->srcs, (
{
- clib_memcpy (group_ptr (igmp, len + sizeof (ip4_address_t) * n_srcs),
- &sg1->saddr.ip4, sizeof (ip4_address_t));
- n_srcs++;
- }
+ igmp_group->src_addresses[i++] = src->addr.ip4;
+ }));
+ len += sizeof (ip4_address_t) * i;
+ len += sizeof (igmp_membership_group_v3_t);
+ igmp_group = group_ptr (igmp, len);
}));
- group_ptr (igmp, len - grp_s)->n_src_addresses = clib_host_to_net_u16 (n_srcs);
- len += sizeof (ip4_address_t) * n_srcs;
- n_groups++;
- }));
- /* *INDENT-ON* */
-
- igmp->n_groups = clib_host_to_net_u16 (n_groups);
+ /* *INDENT-ON* */
+ }
sum = ip_incremental_checksum (0, igmp, len);
csum = ~ip_csum_fold (sum);
b->current_length += len;
}
+/** \brief igmp create query (v3)
+ @param b - vlib buffer
+ @param config - configuration that sends the query
+ @param group - if not NULL, create Group-specific query
+
+ Create igmp v3 qeury inside vlib buffer b.
+ If group == NULL create general query,
+ else, create group specific query.
+*/
static void
-igmp_create_general_query_v3 (vlib_buffer_t * b, igmp_config_t * config)
+igmp_create_query_v3 (vlib_buffer_t * b, igmp_config_t * config,
+ igmp_group_t * group)
{
vlib_main_t *vm = vlib_get_main ();
ip_csum_t sum;
u16 csum;
- igmp_message_t *igmp = (igmp_message_t *) (vlib_buffer_get_current (b));
+ igmp_membership_query_v3_t *igmp =
+ (igmp_membership_query_v3_t *) (vlib_buffer_get_current (b));
memset (igmp, 0, sizeof (igmp_membership_query_v3_t));
igmp->header.type = IGMP_TYPE_membership_query;
igmp_create_int_timer (vlib_time_now (vm) + (f64) (igmp->header.code / 10),
config->sw_if_index, igmp_query_resp_exp);
+ if (PREDICT_FALSE (group != NULL))
+ clib_memcpy (&igmp->dst, &group->addr.ip4, sizeof (ip4_address_t));
+
sum =
ip_incremental_checksum (0, igmp, sizeof (igmp_membership_query_v3_t));
csum = ~ip_csum_fold (sum);
b->current_length += sizeof (igmp_membership_query_v3_t);
}
+/** \brief igmp create ip4
+ @param b - vlib buffer
+ @param config - igmp configuration
+ @param group - igmp membership group
+ @param is_report - if zero create query, else create report
+ Create ip4 header in vlib buffer b.
+*/
static void
-igmp_create_ip4 (vlib_buffer_t * b, igmp_config_t * config, u8 is_report)
+igmp_create_ip4 (vlib_buffer_t * b, igmp_config_t * config,
+ igmp_group_t * group, u8 is_report)
{
ip_lookup_main_t *lm = &ip4_main.lookup_main;
ip4_address_t *if_ip = ip_interface_address_get_address (lm, if_add);
clib_memcpy (&ip4->src_address, if_ip, sizeof (ip4_address_t));
}
- ip4->dst_address.as_u8[0] = 224;
- ip4->dst_address.as_u8[1] = 0;
- ip4->dst_address.as_u8[2] = 0;
- ip4->dst_address.as_u8[3] = is_report ? 22 : 1;
+
+ if (is_report)
+ ip4->dst_address.as_u32 =
+ clib_host_to_net_u32 (IGMP_MEMBERSHIP_REPORT_ADDRESS);
+ else
+ {
+ if ((group != NULL))
+ clib_memcpy (&ip4->dst_address, &group->addr.ip4,
+ sizeof (ip4_address_t));
+ else
+ ip4->dst_address.as_u32 =
+ clib_host_to_net_u32 (IGMP_GENERAL_QUERY_ADDRESS);
+ }
b->current_data += ip4_header_bytes (ip4);
b->current_length += ip4_header_bytes (ip4);
- config->next_create_msg (b, config);
+ config->next_create_msg (b, config, group);
ip4->length = clib_host_to_net_u16 (b->current_length);
ip4->checksum = ip4_header_checksum (ip4);
}
+
+/** \brief igmp send message
+ @param vm - vlib main
+ @param node - vlib runtime node
+ @param im - igmp main
+ @param config - igmp configuration
+ @param group - igmp mebership group
+ @param is_report - 0 == qeury, else report
+
+ Send an igmp message. Get free vlib buffer fill it with igmp packet and transmit.
+*/
static void
igmp_send_msg (vlib_main_t * vm, vlib_node_runtime_t * node,
- igmp_main_t * im, igmp_config_t * config, u8 is_report)
+ igmp_main_t * im, igmp_config_t * config, igmp_group_t * group,
+ u8 is_report)
{
u32 thread_index = vlib_get_thread_index ();
u32 *to_next;
b->current_data = 0;
b->current_length = 0;
- igmp_create_ip4 (b, config, is_report);
+ igmp_create_ip4 (b, config, group, is_report);
b->current_data = 0;
igmp_timer_t * timer)
{
igmp_config_t *config;
+/* TODO: group-specific query: pass group key in timer */
+ igmp_group_t *group = NULL;
u32 sw_if_index = timer->sw_if_index;
return;
/* TODO: implement IGMPv2 */
- config->next_create_msg = igmp_create_general_query_v3;
- igmp_send_msg (vm, rt, im, config, /* is_report */ 0);
+ config->next_create_msg = igmp_create_query_v3;
+ igmp_send_msg (vm, rt, im, config, group, /* is_report */ 0);
- igmp_create_int_timer (vlib_time_now (vm) + IGMP_QUERY_TIMER, sw_if_index,
- igmp_send_query);
+ /* in case of group query we don't want to set up another qery timer */
+ if (PREDICT_TRUE (!group))
+ igmp_create_int_timer (vlib_time_now (vm) + IGMP_QUERY_TIMER, sw_if_index,
+ igmp_send_query);
}
void
igmp_main_t * im, igmp_timer_t * timer)
{
igmp_config_t *config;
+/* TODO: group-specific query: pass group key in timer */
+ igmp_group_t *group = NULL;
u32 sw_if_index = timer->sw_if_index;
config = igmp_config_lookup (im, sw_if_index);
if (!config)
return;
- /* if report not reveived in max resp time clear igmp on interface */
+
+ /* if group != NULL this is a group-specific qeury timer */
+ if (PREDICT_FALSE (group != NULL))
+ {
+ if ((group->flags & IGMP_GROUP_FLAG_QUERY_RESP_RECVED) == 0)
+ {
+ igmp_clear_group (config, group);
+ return;
+ }
+ }
+ /* if report not received in max resp time clear igmp on interface */
if ((config->flags & IGMP_CONFIG_FLAG_QUERY_RESP_RECVED) == 0)
{
igmp_clear_config (config);
if (config->flags & IGMP_CONFIG_FLAG_CAN_SEND_REPORT)
{
/* TODO: implement IGMPv2 and IGMPv1 */
- config->next_create_msg = igmp_create_report_v32;
- igmp_send_msg (vm, rt, im, config, /* is_report */ 1);
+ config->next_create_msg = igmp_create_report_v3;
+ /* pass NULL as group to send all groups at once */
+ igmp_send_msg (vm, rt, im, config, NULL, /* is_report */ 1);
/* WIP: unset flag after all reports sent */
config->flags &= ~IGMP_CONFIG_FLAG_CAN_SEND_REPORT;
}
igmp_main_t * im, igmp_timer_t * timer)
{
igmp_config_t *config;
- igmp_sg_t *sg;
+ igmp_group_t *group;
+ igmp_src_t *src;
+ igmp_key_t gkey;
+
+ u32 sw_if_index = timer->sw_if_index;
+ IGMP_DBG ("sw_if_index %d", sw_if_index);
+
+ ASSERT (timer->data);
+ clib_memcpy (&gkey, timer->data, sizeof (igmp_key_t));
pool_put (im->timers, timer);
- config = vec_elt_at_index (im->configs, im->next_index.config_index);
- sg = vec_elt_at_index (config->sg, im->next_index.sg_index);
+ config = igmp_config_lookup (im, sw_if_index);
+ if (!config)
+ return;
+
+ group = igmp_group_lookup (config, &gkey);
+ if (!group)
+ return;
- config->next_create_msg = igmp_create_report_v31;
- igmp_send_msg (vm, rt, im, config, /* is_report */ 1);
+ config->next_create_msg = igmp_create_report_v3;
+ igmp_send_msg (vm, rt, im, config, group, /* is_report */ 1);
+ IGMP_DBG ("group_type %u", group->type);
- if (sg->group_type == IGMP_MEMBERSHIP_GROUP_change_to_filter_include)
- {
- sg->group_type = IGMP_MEMBERSHIP_GROUP_mode_is_filter_include;
- }
- else if (sg->group_type == IGMP_MEMBERSHIP_GROUP_block_old_sources)
+ if (group->type == IGMP_MEMBERSHIP_GROUP_change_to_filter_include)
{
- /* remove API/CLI configured (S,G) */
- hash_unset_mem (config->igmp_sg_by_key, sg->key);
- clib_mem_free (sg->key);
- pool_put (config->sg, sg);
- if (pool_elts (config->sg) == 0)
+ igmp_key_t new_gkey;
+ igmp_group_t *new_group;
+ igmp_src_t *new_src;
+
+ clib_memcpy (&new_gkey.data, &group->addr, sizeof (ip46_address_t));
+ new_gkey.group_type = IGMP_MEMBERSHIP_GROUP_mode_is_filter_include;
+
+ new_group = igmp_group_lookup (config, &new_gkey);
+ if (!new_group)
{
- hash_unset_mem (im->igmp_config_by_sw_if_index,
- &config->sw_if_index);
- pool_put (im->configs, config);
+ IGMP_DBG ("creating new group...");
+ pool_get (config->groups, new_group);
+ /* get valid pointer to old group */
+ group = igmp_group_lookup (config, &gkey);
+
+ memset (new_group, 0, sizeof (igmp_group_t));
+
+ clib_memcpy (&new_group->addr, &group->addr,
+ sizeof (ip46_address_t));
+ new_group->n_srcs = 0;
+ new_group->type = new_gkey.group_type;
+
+ new_group->key = clib_mem_alloc (sizeof (igmp_key_t));
+ clib_memcpy (new_group->key, &new_gkey, sizeof (igmp_key_t));
+ new_group->igmp_src_by_key =
+ hash_create_mem (0, sizeof (igmp_key_t), sizeof (uword));
+ hash_set_mem (config->igmp_group_by_key, new_group->key,
+ new_group - config->groups);
}
+ /* *INDENT-OFF* */
+ /* loop through old group sources */
+ pool_foreach (src, group->srcs, (
+ {
+ /* add sources to new group */
+ new_src = igmp_src_lookup (new_group, src->key);
+ if (!new_src)
+ {
+ pool_get (new_group->srcs, new_src);
+ memset (new_src, 0, sizeof (igmp_src_t));
+ new_group->n_srcs += 1;
+ new_src->key = clib_mem_alloc (sizeof (igmp_key_t));
+ clib_memcpy (new_src->key, src->key, sizeof (igmp_key_t));
+ clib_memcpy (&new_src->addr, &src->addr,
+ sizeof (ip46_address_t));
+
+ hash_set_mem (new_group->igmp_src_by_key, new_src->key,
+ new_src - new_group->srcs);
+ }
+ }));
+ /* *INDENT-ON* */
}
+ /* remove group */
+ IGMP_DBG ("remove group");
+ igmp_clear_group (config, group);
+ if (pool_elts (config->groups) == 0)
+ {
+ hash_unset_mem (im->igmp_config_by_sw_if_index, &config->sw_if_index);
+ pool_put (im->configs, config);
+ }
}
void
-igmp_sg_exp (vlib_main_t * vm, vlib_node_runtime_t * rt, igmp_main_t * im,
- igmp_timer_t * timer)
+igmp_src_exp (vlib_main_t * vm, vlib_node_runtime_t * rt,
+ igmp_main_t * im, igmp_timer_t * timer)
{
igmp_config_t *config;
- igmp_sg_t *sg;
+ igmp_group_t *group;
+ igmp_src_t *src;
- igmp_sg_key_t *key = (igmp_sg_key_t *) timer->data;
+ ASSERT (timer->data);
+
+ igmp_key_t *gkey = (igmp_key_t *) & ((igmp_key_t *) timer->data)[0];
+ igmp_key_t *skey = (igmp_key_t *) & ((igmp_key_t *) timer->data)[1];
config = igmp_config_lookup (im, timer->sw_if_index);
if (!config)
goto done;
- sg = igmp_sg_lookup (config, key);
- if (!sg)
+ group = igmp_group_lookup (config, gkey);
+ if (!group)
+ goto done;
+ src = igmp_src_lookup (group, skey);
+ if (!src)
goto done;
-
/* check if this timer is valid */
- if (timer->exp_time != sg->exp_time)
+ if (timer->exp_time != src->exp_time)
{
- timer->exp_time = sg->exp_time;
+ timer->exp_time = src->exp_time;
igmp_sort_timers (im->timers);
return;
}
- /* source timer expired, remove (S,G) */
- igmp_listen (vm, 0, timer->sw_if_index, key->saddr, key->gaddr, 0);
+ ip46_address_t saddr;
+ ip46_address_t gaddr;
+ clib_memcpy (&saddr, skey->data, sizeof (ip46_address_t));
+ clib_memcpy (&gaddr, gkey->data, sizeof (ip46_address_t));
+ /* source timer expired, remove src */
+ igmp_listen (vm, 0, timer->sw_if_index, saddr, gaddr, 0);
done:
+ clib_mem_free (timer->data);
pool_put (im->timers, timer);
}
+/** \brief igmp timer process
+ @param vm - vlib main
+ @param rt - vlib runtime node
+ @param f - vlib frame
+
+ Handle igmp timers.
+*/
static uword
igmp_timer_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
vlib_frame_t * f)
igmp_main_t *im = &igmp_main;
uword *event_data = 0, event_type;
f64 time_start;
- u8 enabled = 0;
igmp_timer_t *timer = NULL;
-
while (1)
{
- if (enabled)
+ /* suspend util timer expires */
+ if (NULL != timer)
vlib_process_wait_for_event_or_clock (vm,
timer->exp_time - time_start);
else
vlib_process_wait_for_event (vm);
-
time_start = vlib_time_now (vm);
-
event_type = vlib_process_get_events (vm, &event_data);
vec_reset_length (event_data);
-
if (event_type == IGMP_PROCESS_EVENT_UPDATE_TIMER)
goto next_timer;
-
- DBG ("time: %f", vlib_time_now (vm));
-
+ IGMP_DBG ("time: %f", vlib_time_now (vm));
/* timer expired */
- timer->func (vm, rt, im, timer);
-
+ if (NULL != timer && timer->func != NULL)
+ timer->func (vm, rt, im, timer);
next_timer:
timer = igmp_get_next_timer (im);
- if (timer == NULL)
- enabled = 0;
- else
- enabled = 1;
}
return 0;
}
{
igmp_main_t *im = &igmp_main;
igmp_config_t *config;
- igmp_sg_t *sg;
- igmp_sg_key_t key;
+ igmp_group_t *group;
+ igmp_src_t *src;
+ igmp_key_t skey;
+ igmp_key_t gkey;
+
+ igmp_membership_group_v3_type_t group_type =
+ (cli_api_configured) ?
+ IGMP_MEMBERSHIP_GROUP_change_to_filter_include :
+ IGMP_MEMBERSHIP_GROUP_mode_is_filter_include;
int rv = 0;
- /* set the lookup key */
- clib_memcpy (&key.saddr, &saddr, sizeof (ip46_address_t));
- clib_memcpy (&key.gaddr, &gaddr, sizeof (ip46_address_t));
+ /* set the lookup keys */
+ skey.group_type = 0;
+ gkey.group_type = group_type;
+ clib_memcpy (&skey.data, &saddr, sizeof (ip46_address_t));
+ clib_memcpy (&gkey.data, &gaddr, sizeof (ip46_address_t));
if (enable)
{
+ /* find configuration, if it dosn't exist, create new */
config = igmp_config_lookup (im, sw_if_index);
if (!config)
{
pool_get (im->configs, config);
memset (config, 0, sizeof (igmp_config_t));
config->sw_if_index = sw_if_index;
- config->igmp_sg_by_key =
- hash_create_mem (0, sizeof (igmp_sg_key_t), sizeof (uword));
+ config->igmp_group_by_key =
+ hash_create_mem (0, sizeof (igmp_key_t), sizeof (uword));
config->cli_api_configured = cli_api_configured;
/* use IGMPv3 by default */
config->igmp_ver = IGMP_V3;
config->robustness_var = IGMP_DEFAULT_ROBUSTNESS_VARIABLE;
config->flags |= IGMP_CONFIG_FLAG_QUERY_RESP_RECVED;
+
if (!cli_api_configured)
{
+ /* create qery timer */
igmp_create_int_timer (vlib_time_now (vm) + IGMP_QUERY_TIMER,
sw_if_index, igmp_send_query);
}
config->adj_index =
adj_mcast_add_or_lock (FIB_PROTOCOL_IP4, VNET_LINK_IP4,
config->sw_if_index);
- hash_set_mem (im->igmp_config_by_sw_if_index, &config->sw_if_index,
- config - im->configs);
+ hash_set_mem (im->igmp_config_by_sw_if_index,
+ &config->sw_if_index, config - im->configs);
}
else if (config->cli_api_configured != cli_api_configured)
{
rv = -2;
goto error;
}
- sg = igmp_sg_lookup (config, &key);
- if (!sg)
+ /* find igmp group, if it dosn't exist, create new */
+ group = igmp_group_lookup (config, &gkey);
+ if (!group)
{
- pool_get (config->sg, sg);
- memset (sg, 0, sizeof (igmp_sg_t));
- sg->key = clib_mem_alloc (sizeof (igmp_sg_key_t));
- clib_memcpy (sg->key, &key, sizeof (igmp_sg_key_t));
- clib_memcpy (&sg->saddr, &saddr, sizeof (ip46_address_t));
- clib_memcpy (&sg->gaddr, &gaddr, sizeof (ip46_address_t));
- sg->group_type = IGMP_MEMBERSHIP_GROUP_change_to_filter_include;
+ pool_get (config->groups, group);
+ memset (group, 0, sizeof (igmp_group_t));
+ group->key = clib_mem_alloc (sizeof (igmp_key_t));
+ clib_memcpy (group->key, &gkey, sizeof (igmp_key_t));
+ clib_memcpy (&group->addr, &gaddr, sizeof (ip46_address_t));
+ group->igmp_src_by_key =
+ hash_create_mem (0, sizeof (igmp_key_t), sizeof (uword));
+ group->n_srcs = 0;
+ group->type = gkey.group_type;
if (cli_api_configured)
{
/* create state-changed report timer with zero timeout */
- igmp_create_int_timer (0, sw_if_index, igmp_send_state_changed);
+ igmp_create_group_timer (0, sw_if_index, group->key,
+ igmp_send_state_changed);
}
- else
+
+ hash_set_mem (config->igmp_group_by_key, group->key,
+ group - config->groups);
+ }
+ /* find source, if it dosn't exist, create new */
+ src = igmp_src_lookup (group, &skey);
+ if (!src)
+ {
+ pool_get (group->srcs, src);
+ memset (src, 0, sizeof (igmp_src_t));
+ group->n_srcs += 1;
+ src->key = clib_mem_alloc (sizeof (igmp_key_t));
+ clib_memcpy (src->key, &skey, sizeof (igmp_key_t));
+ clib_memcpy (&src->addr, &saddr, sizeof (ip46_address_t));
+ if (!cli_api_configured)
{
- sg->group_type = IGMP_MEMBERSHIP_GROUP_mode_is_filter_include;
- sg->exp_time = vlib_time_now (vm) + IGMP_SG_TIMER;
- igmp_create_sg_timer (sg->exp_time, config->sw_if_index,
- sg->key, igmp_sg_exp);
- /* notify all registered api clients */
- igmp_event (im, config, sg);
+ /* arm source timer (after expiration remove (S,G)) */
+ igmp_event (im, config, group, src);
+ src->exp_time = vlib_time_now (vm) + IGMP_SRC_TIMER;
+ igmp_create_src_timer (src->exp_time, config->sw_if_index,
+ group->key, src->key, igmp_src_exp);
}
- hash_set_mem (config->igmp_sg_by_key, sg->key, sg - config->sg);
+
+ hash_set_mem (group->igmp_src_by_key, src->key, src - group->srcs);
}
else
{
rv = -1;
goto error;
}
-
- im->next_index.config_index = config - im->configs;
- im->next_index.sg_index = sg - config->sg;
}
else
{
config = igmp_config_lookup (im, sw_if_index);
if (config)
{
- sg = igmp_sg_lookup (config, &key);
- if (sg)
+ gkey.group_type = IGMP_MEMBERSHIP_GROUP_mode_is_filter_include;
+ group = igmp_group_lookup (config, &gkey);
+ if (group)
{
- sg->group_type = IGMP_MEMBERSHIP_GROUP_block_old_sources;
- im->next_index.config_index = config - im->configs;
- im->next_index.sg_index = sg - config->sg;
- /* notify all registered api clients */
- if (!cli_api_configured)
- igmp_event (im, config, sg);
+ src = igmp_src_lookup (group, &skey);
+ if (src)
+ {
+ /* add source to block_all_sources group */
+ igmp_key_t new_gkey;
+ igmp_group_t *new_group;
+
+ clib_memcpy (&new_gkey, &gkey, sizeof (igmp_key_t));
+ new_gkey.group_type =
+ IGMP_MEMBERSHIP_GROUP_block_old_sources;
+ new_group = igmp_group_lookup (config, &new_gkey);
+ if (!new_group)
+ {
+ pool_get (config->groups, new_group);
+
+ group = igmp_group_lookup (config, &gkey);
+
+ memset (new_group, 0, sizeof (igmp_group_t));
+ new_group->key = clib_mem_alloc (sizeof (igmp_key_t));
+ clib_memcpy (new_group->key, &new_gkey,
+ sizeof (igmp_key_t));
+ clib_memcpy (&new_group->addr, &group->addr,
+ sizeof (ip46_address_t));
+ new_group->igmp_src_by_key =
+ hash_create_mem (0, sizeof (igmp_key_t),
+ sizeof (uword));
+ new_group->n_srcs = 0;
+ new_group->type = new_gkey.group_type;
+ hash_set_mem (config->igmp_group_by_key, new_group->key,
+ new_group - config->groups);
+ }
+ igmp_src_t *new_src;
+ new_src = igmp_src_lookup (new_group, &skey);
+ if (!new_src)
+ {
+ pool_get (new_group->srcs, new_src);
+ memset (new_src, 0, sizeof (igmp_src_t));
+ new_group->n_srcs += 1;
+ new_src->key = clib_mem_alloc (sizeof (igmp_key_t));
+ clib_memcpy (new_src->key, src->key,
+ sizeof (igmp_key_t));
+ clib_memcpy (&new_src->addr, &src->addr,
+ sizeof (ip46_address_t));
+ hash_set_mem (new_group->igmp_src_by_key, new_src->key,
+ new_src - new_group->srcs);
+ }
+
+ /* notify all registered api clients */
+ if (!cli_api_configured)
+ igmp_event (im, config, new_group, new_src);
+ else
+ igmp_create_group_timer (0, sw_if_index, new_group->key,
+ igmp_send_state_changed);
+ /* remove source form mode_is_filter_include group */
+ hash_unset_mem (group->igmp_src_by_key, src->key);
+ clib_mem_free (src->key);
+ pool_put (group->srcs, src);
+ group->n_srcs -= 1;
+ if (group->n_srcs <= 0)
+ igmp_clear_group (config, group);
+ if (pool_elts (config->groups) <= 0)
+ igmp_clear_config (config);
+ }
else
- igmp_create_int_timer (0, sw_if_index,
- igmp_send_state_changed);
+ {
+ rv = -1;
+ goto error;
+ }
}
else
{
return rv;
}
+/** \brief igmp hardware interface link up down
+ @param vnm - vnet main
+ @param hw_if_index - interface hw_if_index
+ @param flags - hw interface flags
+
+ If an interface goes down, remove its (S,G)s.
+*/
static clib_error_t *
igmp_hw_interface_link_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
{
igmp_main_t *im = &igmp_main;
igmp_config_t *config;
clib_error_t *error = NULL;
-
/* remove igmp from a down interface to prevent crashes... */
config =
igmp_config_lookup (im,
VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION (igmp_hw_interface_link_up_down);
+/** \brief igmp initialization
+ @param vm - vlib main
+
+ initialize igmp plugin. Initialize igmp_main, set mfib to allow igmp traffic.
+*/
static clib_error_t *
igmp_init (vlib_main_t * vm)
{
+ clib_error_t *error;
igmp_main_t *im = &igmp_main;
vlib_thread_main_t *tm = vlib_get_thread_main ();
int i;
-
-
+ if ((error = vlib_call_init_function (vm, ip4_lookup_init)))
+ return error;
im->igmp_config_by_sw_if_index =
hash_create_mem (0, sizeof (u32), sizeof (uword));
im->igmp_api_client_by_client_index =
hash_create_mem (0, sizeof (u32), sizeof (uword));
-
vec_validate_aligned (im->buffers, tm->n_vlib_mains - 1,
CLIB_CACHE_LINE_BYTES);
-
ip4_register_protocol (IP_PROTOCOL_IGMP, igmp_input_node.index);
-
igmp_type_info_t *ti;
igmp_report_type_info_t *rti;
#define igmp_type(n,s) \
ti->type = n; \
ti->name = (u8 *) #s; \
} while (0);
-
#define igmp_report_type(n,s) \
do { \
vec_add2 (im->report_type_infos, rti, 1); \
rti->type = n; \
rti->name = (u8 *) #s; \
} while (0);
-
#include "igmp.def"
-
#undef igmp_type
#undef igmp_report_type
-
for (i = 0; i < vec_len (im->type_infos); i++)
{
ti = im->type_infos + i;
}
/* General Query address */
- ip46_address_t addr0;
- addr0.ip4.as_u8[0] = 224;
- addr0.ip4.as_u8[1] = 0;
- addr0.ip4.as_u8[2] = 0;
- addr0.ip4.as_u8[3] = 1;
+ ip46_address_t addr0 = {
+ .as_u64[0] = 0,
+ .as_u64[1] = 0
+ };
+ addr0.ip4.as_u32 = clib_host_to_net_u32 (IGMP_GENERAL_QUERY_ADDRESS);
+
/* Report address */
- ip46_address_t addr1;
- addr1.ip4.as_u8[0] = 224;
- addr1.ip4.as_u8[1] = 0;
- addr1.ip4.as_u8[2] = 0;
- addr1.ip4.as_u8[3] = 22;
+ ip46_address_t addr1 = {
+ .as_u64[0] = 0,
+ .as_u64[1] = 0
+ };
+ addr1.ip4.as_u32 = clib_host_to_net_u32 (IGMP_MEMBERSHIP_REPORT_ADDRESS);
fib_route_path_t path = {
.frp_proto = fib_proto_to_dpo (FIB_PROTOCOL_IP4),
.frp_weight = 0,
.frp_flags = FIB_ROUTE_PATH_LOCAL,
};
+
const mfib_prefix_t mpfx0 = {
.fp_proto = FIB_PROTOCOL_IP4,
.fp_len = 32,
.fp_grp_addr = addr0,
};
+
const mfib_prefix_t mpfx1 = {
.fp_proto = FIB_PROTOCOL_IP4,
.fp_len = 32,
.fp_grp_addr = addr1,
};
- /* configure MFIB to accept IGMPv3 general query and reports from all interfaces */
- mfib_table_entry_path_update (0, &mpfx0, MFIB_SOURCE_DEFAULT_ROUTE, &path,
+
+ /* configure MFIB to accept IGMPv3 general query
+ * and reports from all interfaces
+ */
+ mfib_table_entry_path_update (0, &mpfx0,
+ MFIB_SOURCE_DEFAULT_ROUTE, &path,
MFIB_ITF_FLAG_FORWARD);
- mfib_table_entry_path_update (0, &mpfx1, MFIB_SOURCE_DEFAULT_ROUTE, &path,
+ mfib_table_entry_path_update (0, &mpfx1,
+ MFIB_SOURCE_DEFAULT_ROUTE, &path,
MFIB_ITF_FLAG_FORWARD);
-
- mfib_table_entry_update (0, &mpfx0, MFIB_SOURCE_DEFAULT_ROUTE, 0,
- MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF);
- mfib_table_entry_update (0, &mpfx1, MFIB_SOURCE_DEFAULT_ROUTE, 0,
- MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF);
-
- return 0;
+ mfib_table_entry_update (0, &mpfx0, MFIB_SOURCE_DEFAULT_ROUTE,
+ 0, MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF);
+ mfib_table_entry_update (0, &mpfx1, MFIB_SOURCE_DEFAULT_ROUTE,
+ 0, MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF);
+ return (error);
}
VLIB_INIT_FUNCTION (igmp_init);
-
/* *INDENT-OFF* */
VLIB_PLUGIN_REGISTER () = {
.version = VPP_BUILD_VER,
Code Review / vpp.git / blobdiff