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authorDave Barach <dave@barachs.net>2020-02-20 16:17:58 -0500
committerDamjan Marion <dmarion@me.com>2020-02-21 09:52:42 +0000
commitd1586962a5f8f14fb81c930174d12d0453adaab8 (patch)
tree2e7bfc5cde108ef32d811e7bec6bd5a0030e3388 /src/vnet/ip6-nd/ip6_ra.c
parent269549491ae6c8d9c35d6b4fa9441ad15e6b82f0 (diff)
dhcp: update secondary radv_info structures
For details, see the Jira ticket below. Fix gerrit 23350. Type: fix Fixes: 28a6eb7 Ticket: VPP-1840 Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: Ic9248734bb330eadb302f8410e8db9c64723f075
Diffstat (limited to 'src/vnet/ip6-nd/ip6_ra.c')
-rw-r--r--src/vnet/ip6-nd/ip6_ra.c75
1 files changed, 70 insertions, 5 deletions
diff --git a/src/vnet/ip6-nd/ip6_ra.c b/src/vnet/ip6-nd/ip6_ra.c
index ebc2c4be417..c8e16d0c0ee 100644
--- a/src/vnet/ip6-nd/ip6_ra.c
+++ b/src/vnet/ip6-nd/ip6_ra.c
@@ -559,13 +559,18 @@ icmp6_router_solicitation (vlib_main_t * vm,
}
h.unused = 0;
- clib_warning ("Prefix %U valid %u preferred %u",
- format_ip6_address, &pr_info->prefix,
- clib_net_to_host_u32 (h.valid_time),
- clib_net_to_host_u32 (h.preferred_time));
+ /* Handy for debugging, but too noisy... */
+ if (0 && CLIB_DEBUG > 0)
+ clib_warning
+ ("send RA for prefix %U/%d "
+ "sw_if_index %d valid %u preferred %u",
+ format_ip6_address, &pr_info->prefix,
+ pr_info->prefix_len, sw_if_index0,
+ clib_net_to_host_u32 (h.valid_time),
+ clib_net_to_host_u32 (h.preferred_time));
if (h.valid_time == 0)
- clib_warning ("WARNING: valid_time 0!!!");
+ clib_warning ("BUG: send RA with valid_time 0");
clib_memcpy(&h.dst_address, &pr_info->prefix, sizeof(ip6_address_t));
@@ -1414,6 +1419,66 @@ ip6_ra_delegate_disable (index_t rai)
pool_put (ip6_ra_pool, radv_info);
}
+void
+ip6_ra_update_secondary_radv_info (ip6_address_t * address, u8 prefix_len,
+ u32 primary_sw_if_index,
+ u32 valid_time, u32 preferred_time)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ static u32 *radv_indices;
+ ip6_ra_t *radv_info;
+ int i;
+ ip6_address_t mask;
+ ip6_address_mask_from_width (&mask, prefix_len);
+
+ vec_reset_length (radv_indices);
+ /* *INDENT-OFF* */
+ pool_foreach (radv_info, ip6_ra_pool,
+ ({
+ vec_add1 (radv_indices, radv_info - ip6_ra_pool);
+ }));
+ /* *INDENT-ON* */
+
+ /*
+ * If we have another customer for this prefix,
+ * tell the RA code about it...
+ */
+ for (i = 0; i < vec_len (radv_indices); i++)
+ {
+ ip6_radv_prefix_t *this_prefix;
+ radv_info = pool_elt_at_index (ip6_ra_pool, radv_indices[i]);
+
+ /* We already took care of these timers... */
+ if (radv_info->sw_if_index == primary_sw_if_index)
+ continue;
+
+ /* *INDENT-OFF* */
+ pool_foreach (this_prefix, radv_info->adv_prefixes_pool,
+ ({
+ if (this_prefix->prefix_len == prefix_len
+ && ip6_address_is_equal_masked (&this_prefix->prefix, address,
+ &mask))
+ {
+ int rv = ip6_ra_prefix (vm,
+ radv_info->sw_if_index,
+ address,
+ prefix_len,
+ 0 /* use_default */,
+ valid_time,
+ preferred_time,
+ 0 /* no_advertise */,
+ 0 /* off_link */,
+ 0 /* no_autoconfig */,
+ 0 /* no_onlink */,
+ 0 /* is_no */);
+ if (rv != 0)
+ clib_warning ("ip6_neighbor_ra_prefix returned %d", rv);
+ }
+ }));
+ /* *INDENT-ON*/
+ }
+}
+
/* send a RA or update the timer info etc.. */
static uword
ip6_ra_process_timer_event (vlib_main_t * vm,