/*
*===========================================================================
* ipnet_rtnetlink_route_delroute_family
*===========================================================================
* Description: Delete a route via NETLINK.
* Parameters: data - Message payload
* len - Length of message.
* nlh - NETLINK message header
* arg - Reference to route attributes.
*
* Returns: 0 - Success
* <0 - Failure
*
*/
IP_GLOBAL int
ipnet_rtnetlink_route_delroute_family(Ipnet_netlink_mem_t *mem,
struct Ip_nlmsghdr *nlh,
struct Ip_rtattr **rta,
int family)
{
int ret = -1;
Ip_u16 vr;
Ip_u32 table;
Ip_u32 ifindex = 0;
Ip_bool is_multipath_route = IP_FALSE;
Ip_size_t mpa_size = 0;
struct Ip_rtnexthop *nh = IP_NULL;
struct Ip_sockaddr *gw = IP_NULL;
void *mask = IP_NULL;
struct Ip_rtmsg *rtm = IP_NLMSG_DATA(nlh);
union Ip_sockaddr_union ugw;
Ipnet_rtnetlink_key_t ukey;
#ifdef IPMPLS
struct Ip_sockaddr_mpls gw_mpls;
#endif /* IPMPLS */
table = IPCOM_ROUTE_TABLE_GET(rtm->rtm_table);
#ifdef IPNET_USE_ROUTE_TABLE_NAMES
if (rta[IP_RTA_TABLE_NAME -1])
{
if (ipnet_route_vr_and_table_from_name(IP_RTA_DATA(rta[IP_RTA_TABLE_NAME - 1]),
&vr,
&table) < 0)
return -IP_ERRNO_ESRCH;
}
else
#endif
{
if (mem->vr == IPCOM_VR_ANY)
return -IP_ERRNO_EINVAL;
vr = ipnet_rtnetlink_vr(rta[IP_RTA_VR - 1], mem->vr);
if (rta[IP_RTA_TABLE - 1])
table = IP_GET_32ON8(IP_RTA_DATA(rta[IP_RTA_TABLE - 1]));
}
if (rta[IP_RTA_OIF -1])
{
if (rta[IP_RTA_OIF-1]->rta_len != IP_RTA_LENGTH(sizeof(Ip_u32)))
return -IP_ERRNO_EINVAL;
ifindex = IP_GET_32ON8(IP_RTA_DATA(rta[IP_RTA_OIF-1]));
}
if (rta[IP_RTA_MULTIPATH -1])
{
is_multipath_route = IP_TRUE;
nh = IP_RTA_DATA(rta[IP_RTA_MULTIPATH-1]);
mpa_size = IP_RTA_PAYLOAD(rta[IP_RTA_MULTIPATH-1]);
if ((nh == IP_NULL) || (mpa_size == 0))
return -IP_ERRNO_EINVAL;
}
if ((ret = ipnet_rtnetlink_route_key_setup(family, &ukey, ifindex, &mask, rtm->rtm_dst_len, rta[IP_RTA_DST-1])) < 0)
return ret;
if ((ret = ipnet_rtnetlink_route_gw_setup(family, ifindex, &ugw, &gw, rta[IP_RTA_GATEWAY-1])) < 0)
return ret;
if (rta[IP_RTA_GATEWAY-1])
gw = &ugw.sa;
#ifdef IPMPLS
if (rta[IP_RTA_NH_PROTO-1])
{
Ip_u32 nh_type;
/* IPNET MPLS pseudo-wire route */
if (rta[IP_RTA_NH_PROTO-1]->rta_len != IP_RTA_LENGTH(sizeof(Ip_u32)))
return -IP_ERRNO_EINVAL;
if (rta[IP_RTA_NH_PROTO_DATA-1]->rta_len != IP_RTA_LENGTH(sizeof(Ip_u32)))
return -IP_ERRNO_EINVAL;
ipcom_memcpy(&nh_type, IP_RTA_DATA(rta[IP_RTA_NH_PROTO-1]), sizeof(Ip_u32));
if (nh_type != IPNET_ETH_P_MPLS_UNICAST)
return -IP_ERRNO_EINVAL;
ipcom_memset(&gw_mpls, 0, sizeof(gw_mpls));
gw_mpls.smpls_family = IP_AF_MPLS;
IPCOM_SA_LEN_SET(&gw_mpls, sizeof (struct Ip_sockaddr_mpls));
ipcom_memcpy(&gw_mpls.smpls_key, IP_RTA_DATA(rta[IP_RTA_NH_PROTO_DATA-1]), sizeof(Ip_u32));
gw = (struct Ip_sockaddr *)&gw_mpls;
}
#endif
while(1)
{
if (is_multipath_route)
{
ifindex = nh->rtnh_ifindex;
if (nh->rtnh_len > sizeof(struct Ip_rtnexthop))
{
/* Multihop route has gateway */
if ((ret = ipnet_rtnetlink_route_gw_setup(family, ifindex, &ugw, &gw, IP_RTNH_DATA(nh))) < 0)
return ret;
}
}
/* Delete the route */
ret = ipnet_route_delete2(family,
vr,
table,
&ukey,
mask,
gw,
ifindex,
0,
0,
0);
if (is_multipath_route)
{
mpa_size -= IP_RTNH_ALIGN(nh->rtnh_len);
gw = IP_NULL;
if (mpa_size > 0)
nh = IP_RTNH_NEXT(nh);
else
break;
}
else
break;
}
return is_multipath_route ? 0 : ret;
}
/*
*===========================================================================
* ipnet_rtnetlink_neigh_delneigh_family
*===========================================================================
* Description:
* Parameters:
* Returns:
*
*/
IP_GLOBAL int
ipnet_rtnetlink_neigh_delneigh_family(Ipnet_netlink_mem_t *mem,
struct Ip_nlmsghdr *nlmsg,
struct Ip_rtattr **rta,
int family)
{
/**/
Ip_u16 vr;
Ip_u32 table = IPCOM_ROUTE_TABLE_DEFAULT;
Ipnet_netif *netif;
int ret = -IP_ERRNO_EAFNOSUPPORT;
struct Ip_ndmsg *ndm = IP_NLMSG_DATA(nlmsg);
Ipnet_rtnetlink_key_t ukey;
/* Destination address required */
if (rta[IP_NDA_DST-1] == IP_NULL)
return -IP_ERRNO_EINVAL;
#ifdef IPNET_USE_ROUTE_TABLE_NAMES
if (rta[IP_NDA_TABLE_NAME -1])
{
/* Extract router and table from name */
if (ipnet_route_vr_and_table_from_name(IP_RTA_DATA(rta[IP_NDA_TABLE_NAME - 1]),
&vr,
&table) < 0)
return -IP_ERRNO_ESRCH;
}
else
#endif
{
if (mem->vr == IPCOM_VR_ANY)
return -IP_ERRNO_EINVAL;
vr = ipnet_rtnetlink_vr(rta[IP_NDA_VR - 1], mem->vr);
if (rta[IP_NDA_TABLE - 1])
table = IP_GET_32ON8(IP_RTA_DATA(rta[IP_NDA_TABLE - 1]));
}
netif = ipnet_if_indextonetif(vr, ndm->ndm_ifindex);
if (netif && (netif->vr_index != vr))
return -IP_ERRNO_EINVAL;
/* */
if ((ret = ipnet_rtnetlink_route_key_setup(family, &ukey, netif? netif->ipcom.ifindex : 0, IP_NULL, -1, rta[IP_NDA_DST-1])) < 0)
return ret;
/* Delete neighbor */
ret = ipnet_route_delete2(family,
vr,
table,
&ukey,
IP_NULL,
IP_NULL,
netif ? netif->ipcom.ifindex : 0,
0,
0,
0);
return ret;
}
