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Router Advertisement Destination IP address changes 

from ff::1 to UE IP Address(e.g. cafe::2)
This commit is contained in:
Sukchan Lee 2018-01-04 08:51:07 +09:00
parent e4bec187fd
commit 560204ab46
1 changed files with 3 additions and 7 deletions
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10
src/pgw/pgw_gtp_path.c
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@ -388,7 +388,6 @@ static status_t pgw_gtp_send_router_advertisement(pgw_sess_t *sess)
pgw_dev_t *dev = NULL;
ipsubnet_t src_ipsub;
ipsubnet_t dst_ipsub;
c_uint16_t plen = 0;
c_uint8_t nxt = 0;
c_uint8_t *p = NULL;
@ -423,9 +422,6 @@ static status_t pgw_gtp_send_router_advertisement(pgw_sess_t *sess)
memcpy(src_ipsub.sub, dev->link_local_addr->sin6.sin6_addr.s6_addr,
sizeof src_ipsub.sub);
rv = core_ipsubnet(&dst_ipsub, "ff02::1", NULL);
d_assert(rv == CORE_OK, return CORE_ERROR,);
advert_h->nd_ra_type = ND_ROUTER_ADVERT;
advert_h->nd_ra_code = 0;
advert_h->nd_ra_curhoplimit = 64;
@ -450,8 +446,8 @@ static status_t pgw_gtp_send_router_advertisement(pgw_sess_t *sess)
memcpy(p, src_ipsub.sub, sizeof src_ipsub.sub);
p += sizeof src_ipsub.sub;
memcpy(p, dst_ipsub.sub, sizeof dst_ipsub.sub);
p += sizeof dst_ipsub.sub;
memcpy(p, ue_ip->addr, sizeof ue_ip->addr);
p += sizeof ue_ip->addr;
p += 2; memcpy(p, &plen, 2); p += 2;
p += 3; *p = nxt; p += 1;
advert_h->nd_ra_cksum = in_cksum((c_uint16_t *)pkbuf->payload, pkbuf->len);
@ -461,7 +457,7 @@ static status_t pgw_gtp_send_router_advertisement(pgw_sess_t *sess)
ip6_h->ip6_nxt = nxt; /* ICMPv6 */
ip6_h->ip6_hlim = 0xff;
memcpy(ip6_h->ip6_src.s6_addr, src_ipsub.sub, sizeof src_ipsub.sub);
memcpy(ip6_h->ip6_dst.s6_addr, dst_ipsub.sub, sizeof dst_ipsub.sub);
memcpy(ip6_h->ip6_dst.s6_addr, ue_ip->addr, sizeof ue_ip->addr);
rv = pgw_gtp_send_to_bearer(bearer, pkbuf);
d_assert(rv == CORE_OK,, "pgw_gtp_send_to_bearer() faild");