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Fix bugs in IPv6 update routine.

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Signed-off-by: Benjamin Cama <benoar@dolka.fr>
This commit is contained in:
Benjamin Cama 2011-07-25 01:00:03 +02:00
parent 7e1e91ef98
commit 350b06e6f4
1 changed files with 16 additions and 7 deletions
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17
bgp.c
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@ -1665,10 +1665,19 @@ static int bgp_send_update6(struct bgp_peer *peer)
if (!(unf_len || add))
return 1;
if (unf_len)
{
/* go back and insert MP unf_len */
unf_len += sizeof(struct bgp_attr_mp_unreach_nlri_partial);
unf_len = htons(unf_len);
memcpy(&unreach_len, &unf_len, sizeof(unf_len));
memcpy(unreach_len, &unf_len, sizeof(unf_len));
}
else
{
/* we can remove this attribute, then */
data -= BGP_PATH_ATTR_MP_UNREACH_NLRI_PARTIAL_SIZE;
len -= BGP_PATH_ATTR_MP_UNREACH_NLRI_PARTIAL_SIZE;
}
if (add)
{
@ -1690,9 +1699,9 @@ static int bgp_send_update6(struct bgp_peer *peer)
BGP_PATH_ATTR_MP_REACH_NLRI_PARTIAL_SIZE);
/* with proper len */
reach_len = BGP_IP_PREFIX_SIZE(add->dest);
data[2] = reach_len;
data += BGP_PATH_ATTR_MP_UNREACH_NLRI_PARTIAL_SIZE;
len += BGP_PATH_ATTR_MP_UNREACH_NLRI_PARTIAL_SIZE;
data[2] = sizeof(struct bgp_attr_mp_reach_nlri_partial) + reach_len;
data += BGP_PATH_ATTR_MP_REACH_NLRI_PARTIAL_SIZE;
len += BGP_PATH_ATTR_MP_REACH_NLRI_PARTIAL_SIZE;
memcpy(data, &add->dest, reach_len);
data += reach_len;