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isisd: The RFC states that v6 addresses are limited to 16 in a hello packet

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The RFC states we can send only up to 16 v6 addresses in a hello packet
and cannot send sub tlv's of that type.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2019-06-04 21:15:43 -04:00
parent 0643ec535f
commit a443e03645
1 changed files with 5 additions and 0 deletions
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5
isisd/isis_tlvs.c
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@ -3266,13 +3266,18 @@ void isis_tlvs_add_ipv6_addresses(struct isis_tlvs *tlvs,
{ {
struct listnode *node; struct listnode *node;
struct prefix_ipv6 *ip_addr; struct prefix_ipv6 *ip_addr;
unsigned int addr_count = 0;
for (ALL_LIST_ELEMENTS_RO(addresses, node, ip_addr)) { for (ALL_LIST_ELEMENTS_RO(addresses, node, ip_addr)) {
if (addr_count >= 15)
break;
struct isis_ipv6_address *a = struct isis_ipv6_address *a =
XCALLOC(MTYPE_ISIS_TLV, sizeof(*a)); XCALLOC(MTYPE_ISIS_TLV, sizeof(*a));
a->addr = ip_addr->prefix; a->addr = ip_addr->prefix;
append_item(&tlvs->ipv6_address, (struct isis_item *)a); append_item(&tlvs->ipv6_address, (struct isis_item *)a);
addr_count++;
} }
} }