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ibcore: ip6_dev_find() needs to know the scope ID.

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Else the wrong network device can be returned for link-local addresses.

Submitted by:   hselasky@
Approved by:    hselasky (mentor)
MFC after:      1 week
Sponsored by:   Mellanox Technologies
This commit is contained in:
Slava Shwartsman 2018-12-05 13:24:43 +00:00
parent 5ace00dffe
commit a9c20af23d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=341533
3 changed files with 15 additions and 19 deletions
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27
sys/compat/linuxkpi/common/include/linux/inetdevice.h
View File

@ -59,37 +59,32 @@ ip_dev_find(struct vnet *vnet, uint32_t addr)
}
static inline struct net_device *
ip6_dev_find(struct vnet *vnet, struct in6_addr addr)
ip6_dev_find(struct vnet *vnet, struct in6_addr addr, uint16_t scope_id)
{
struct sockaddr_in6 sin6;
struct ifaddr *ifa = NULL;
struct ifnet *ifp = NULL;
int x;
struct ifaddr *ifa;
struct ifnet *ifp;
memset(&sin6, 0, sizeof(sin6));
sin6.sin6_addr = addr;
sin6.sin6_len = sizeof(sin6);
sin6.sin6_family = AF_INET6;
NET_EPOCH_ENTER();
CURVNET_SET_QUIET(vnet);
if (IN6_IS_SCOPE_LINKLOCAL(&addr) ||
IN6_IS_ADDR_MC_INTFACELOCAL(&addr)) {
/* XXX need to search all scope ID's */
for (x = 0; x <= V_if_index && x < 65536; x++) {
sin6.sin6_addr.s6_addr16[1] = htons(x);
ifa = ifa_ifwithaddr((struct sockaddr *)&sin6);
if (ifa != NULL)
break;
}
} else {
ifa = ifa_ifwithaddr((struct sockaddr *)&sin6);
/* embed the IPv6 scope ID */
sin6.sin6_addr.s6_addr16[1] = htons(scope_id);
}
NET_EPOCH_ENTER();
CURVNET_SET_QUIET(vnet);
ifa = ifa_ifwithaddr((struct sockaddr *)&sin6);
CURVNET_RESTORE();
if (ifa != NULL) {
ifp = ifa->ifa_ifp;
if_ref(ifp);
} else {
ifp = NULL;
}
NET_EPOCH_EXIT();
CURVNET_RESTORE();
return (ifp);
}

4
sys/ofed/drivers/infiniband/core/ib_addr.c
View File

@ -185,7 +185,7 @@ int rdma_translate_ip(const struct sockaddr *addr,
#ifdef INET6
case AF_INET6:
dev = ip6_dev_find(dev_addr->net,
((const struct sockaddr_in6 *)addr)->sin6_addr);
((const struct sockaddr_in6 *)addr)->sin6_addr, 0);
break;
#endif
default:
@ -525,7 +525,7 @@ static int addr6_resolve(struct sockaddr_in6 *src_in,
if (addr->bound_dev_if != 0) {
ifp = dev_get_by_index(addr->net, addr->bound_dev_if);
} else {
ifp = ip6_dev_find(addr->net, src_in->sin6_addr);
ifp = ip6_dev_find(addr->net, src_in->sin6_addr, 0);
}
/* check source interface */

3
sys/ofed/drivers/infiniband/core/ib_cma.c
View File

@ -1329,7 +1329,8 @@ static bool validate_ipv6_net_dev(struct net_device *net_dev,
struct rtentry *rte;
bool ret;
dst_dev = ip6_dev_find(net_dev->if_vnet, dst_tmp.sin6_addr);
dst_dev = ip6_dev_find(net_dev->if_vnet, dst_tmp.sin6_addr,
net_dev->if_index);
if (dst_dev != net_dev) {
if (dst_dev != NULL)
dev_put(dst_dev);