diff options
Diffstat (limited to 'net/openvswitch/flow_netlink.c')
| -rw-r--r-- | net/openvswitch/flow_netlink.c | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c index d1bd4a45ca2d..624c4719e404 100644 --- a/net/openvswitch/flow_netlink.c +++ b/net/openvswitch/flow_netlink.c @@ -588,7 +588,7 @@ static int ip_tun_from_nlattr(const struct nlattr *attr, ipv4 = true; break; case OVS_TUNNEL_KEY_ATTR_IPV6_SRC: - SW_FLOW_KEY_PUT(match, tun_key.u.ipv6.dst, + SW_FLOW_KEY_PUT(match, tun_key.u.ipv6.src, nla_get_in6_addr(a), is_mask); ipv6 = true; break; @@ -1141,13 +1141,10 @@ static void nlattr_set(struct nlattr *attr, u8 val, /* The nlattr stream should already have been validated */ nla_for_each_nested(nla, attr, rem) { - if (tbl[nla_type(nla)].len == OVS_ATTR_NESTED) { - if (tbl[nla_type(nla)].next) - tbl = tbl[nla_type(nla)].next; - nlattr_set(nla, val, tbl); - } else { + if (tbl[nla_type(nla)].len == OVS_ATTR_NESTED) + nlattr_set(nla, val, tbl[nla_type(nla)].next ? : tbl); + else memset(nla_data(nla), val, nla_len(nla)); - } if (nla_type(nla) == OVS_KEY_ATTR_CT_STATE) *(u32 *)nla_data(nla) &= CT_SUPPORTED_MASK; @@ -1672,14 +1669,11 @@ int ovs_nla_put_mask(const struct sw_flow *flow, struct sk_buff *skb) #define MAX_ACTIONS_BUFSIZE (32 * 1024) -static struct sw_flow_actions *nla_alloc_flow_actions(int size, bool log) +static struct sw_flow_actions *nla_alloc_flow_actions(int size) { struct sw_flow_actions *sfa; - if (size > MAX_ACTIONS_BUFSIZE) { - OVS_NLERR(log, "Flow action size %u bytes exceeds max", size); - return ERR_PTR(-EINVAL); - } + WARN_ON_ONCE(size > MAX_ACTIONS_BUFSIZE); sfa = kmalloc(sizeof(*sfa) + size, GFP_KERNEL); if (!sfa) @@ -1752,12 +1746,15 @@ static struct nlattr *reserve_sfa_size(struct sw_flow_actions **sfa, new_acts_size = ksize(*sfa) * 2; if (new_acts_size > MAX_ACTIONS_BUFSIZE) { - if ((MAX_ACTIONS_BUFSIZE - next_offset) < req_size) + if ((MAX_ACTIONS_BUFSIZE - next_offset) < req_size) { + OVS_NLERR(log, "Flow action size exceeds max %u", + MAX_ACTIONS_BUFSIZE); return ERR_PTR(-EMSGSIZE); + } new_acts_size = MAX_ACTIONS_BUFSIZE; } - acts = nla_alloc_flow_actions(new_acts_size, log); + acts = nla_alloc_flow_actions(new_acts_size); if (IS_ERR(acts)) return (void *)acts; @@ -2369,7 +2366,7 @@ int ovs_nla_copy_actions(struct net *net, const struct nlattr *attr, { int err; - *sfa = nla_alloc_flow_actions(nla_len(attr), log); + *sfa = nla_alloc_flow_actions(min(nla_len(attr), MAX_ACTIONS_BUFSIZE)); if (IS_ERR(*sfa)) return PTR_ERR(*sfa); |