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Merge tag 'renesas-soc-for-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git...
[cascardo/linux.git] / net / ipv6 / ip6_output.c
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index bc972e7..635b8d3 100644 (file)
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -395,8 +395,8 @@ int ip6_forward(struct sk_buff *skb)
                goto drop;
 
        if (!xfrm6_policy_check(NULL, XFRM_POLICY_FWD, skb)) {
-               IP6_INC_STATS_BH(net, ip6_dst_idev(dst),
-                                IPSTATS_MIB_INDISCARDS);
+               __IP6_INC_STATS(net, ip6_dst_idev(dst),
+                               IPSTATS_MIB_INDISCARDS);
                goto drop;
        }
 
@@ -427,8 +427,8 @@ int ip6_forward(struct sk_buff *skb)
                /* Force OUTPUT device used as source address */
                skb->dev = dst->dev;
                icmpv6_send(skb, ICMPV6_TIME_EXCEED, ICMPV6_EXC_HOPLIMIT, 0);
-               IP6_INC_STATS_BH(net, ip6_dst_idev(dst),
-                                IPSTATS_MIB_INHDRERRORS);
+               __IP6_INC_STATS(net, ip6_dst_idev(dst),
+                               IPSTATS_MIB_INHDRERRORS);
 
                kfree_skb(skb);
                return -ETIMEDOUT;
@@ -441,15 +441,15 @@ int ip6_forward(struct sk_buff *skb)
                if (proxied > 0)
                        return ip6_input(skb);
                else if (proxied < 0) {
-                       IP6_INC_STATS_BH(net, ip6_dst_idev(dst),
-                                        IPSTATS_MIB_INDISCARDS);
+                       __IP6_INC_STATS(net, ip6_dst_idev(dst),
+                                       IPSTATS_MIB_INDISCARDS);
                        goto drop;
                }
        }
 
        if (!xfrm6_route_forward(skb)) {
-               IP6_INC_STATS_BH(net, ip6_dst_idev(dst),
-                                IPSTATS_MIB_INDISCARDS);
+               __IP6_INC_STATS(net, ip6_dst_idev(dst),
+                               IPSTATS_MIB_INDISCARDS);
                goto drop;
        }
        dst = skb_dst(skb);
@@ -505,17 +505,17 @@ int ip6_forward(struct sk_buff *skb)
                /* Again, force OUTPUT device used as source address */
                skb->dev = dst->dev;
                icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
-               IP6_INC_STATS_BH(net, ip6_dst_idev(dst),
-                                IPSTATS_MIB_INTOOBIGERRORS);
-               IP6_INC_STATS_BH(net, ip6_dst_idev(dst),
-                                IPSTATS_MIB_FRAGFAILS);
+               __IP6_INC_STATS(net, ip6_dst_idev(dst),
+                               IPSTATS_MIB_INTOOBIGERRORS);
+               __IP6_INC_STATS(net, ip6_dst_idev(dst),
+                               IPSTATS_MIB_FRAGFAILS);
                kfree_skb(skb);
                return -EMSGSIZE;
        }
 
        if (skb_cow(skb, dst->dev->hard_header_len)) {
-               IP6_INC_STATS_BH(net, ip6_dst_idev(dst),
-                                IPSTATS_MIB_OUTDISCARDS);
+               __IP6_INC_STATS(net, ip6_dst_idev(dst),
+                               IPSTATS_MIB_OUTDISCARDS);
                goto drop;
        }
 
@@ -525,14 +525,14 @@ int ip6_forward(struct sk_buff *skb)
 
        hdr->hop_limit--;
 
-       IP6_INC_STATS_BH(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTFORWDATAGRAMS);
-       IP6_ADD_STATS_BH(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTOCTETS, skb->len);
+       __IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTFORWDATAGRAMS);
+       __IP6_ADD_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTOCTETS, skb->len);
        return NF_HOOK(NFPROTO_IPV6, NF_INET_FORWARD,
                       net, NULL, skb, skb->dev, dst->dev,
                       ip6_forward_finish);
 
 error:
-       IP6_INC_STATS_BH(net, ip6_dst_idev(dst), IPSTATS_MIB_INADDRERRORS);
+       __IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_INADDRERRORS);
 drop:
        kfree_skb(skb);
        return -EINVAL;
@@ -1071,17 +1071,12 @@ struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
                                         const struct in6_addr *final_dst)
 {
        struct dst_entry *dst = sk_dst_check(sk, inet6_sk(sk)->dst_cookie);
-       int err;
 
        dst = ip6_sk_dst_check(sk, dst, fl6);
+       if (!dst)
+               dst = ip6_dst_lookup_flow(sk, fl6, final_dst);
 
-       err = ip6_dst_lookup_tail(sock_net(sk), sk, &dst, fl6);
-       if (err)
-               return ERR_PTR(err);
-       if (final_dst)
-               fl6->daddr = *final_dst;
-
-       return xfrm_lookup_route(sock_net(sk), dst, flowi6_to_flowi(fl6), sk, 0);
+       return dst;
 }
 EXPORT_SYMBOL_GPL(ip6_sk_dst_lookup_flow);
 
@@ -1182,12 +1177,12 @@ static void ip6_append_data_mtu(unsigned int *mtu,
 }
 
 static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork,
-                         struct inet6_cork *v6_cork,
-                         int hlimit, int tclass, struct ipv6_txoptions *opt,
+                         struct inet6_cork *v6_cork, struct ipcm6_cookie *ipc6,
                          struct rt6_info *rt, struct flowi6 *fl6)
 {
        struct ipv6_pinfo *np = inet6_sk(sk);
        unsigned int mtu;
+       struct ipv6_txoptions *opt = ipc6->opt;
 
        /*
         * setup for corking
@@ -1229,8 +1224,8 @@ static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork,
        dst_hold(&rt->dst);
        cork->base.dst = &rt->dst;
        cork->fl.u.ip6 = *fl6;
-       v6_cork->hop_limit = hlimit;
-       v6_cork->tclass = tclass;
+       v6_cork->hop_limit = ipc6->hlimit;
+       v6_cork->tclass = ipc6->tclass;
        if (rt->dst.flags & DST_XFRM_TUNNEL)
                mtu = np->pmtudisc >= IPV6_PMTUDISC_PROBE ?
                      rt->dst.dev->mtu : dst_mtu(&rt->dst);
@@ -1258,7 +1253,8 @@ static int __ip6_append_data(struct sock *sk,
                             int getfrag(void *from, char *to, int offset,
                                         int len, int odd, struct sk_buff *skb),
                             void *from, int length, int transhdrlen,
-                            unsigned int flags, int dontfrag)
+                            unsigned int flags, struct ipcm6_cookie *ipc6,
+                            const struct sockcm_cookie *sockc)
 {
        struct sk_buff *skb, *skb_prev = NULL;
        unsigned int maxfraglen, fragheaderlen, mtu, orig_mtu;
@@ -1297,7 +1293,7 @@ static int __ip6_append_data(struct sock *sk,
                      sizeof(struct frag_hdr) : 0) +
                     rt->rt6i_nfheader_len;
 
-       if (cork->length + length > mtu - headersize && dontfrag &&
+       if (cork->length + length > mtu - headersize && ipc6->dontfrag &&
            (sk->sk_protocol == IPPROTO_UDP ||
             sk->sk_protocol == IPPROTO_RAW)) {
                ipv6_local_rxpmtu(sk, fl6, mtu - headersize +
@@ -1329,7 +1325,7 @@ emsgsize:
                csummode = CHECKSUM_PARTIAL;
 
        if (sk->sk_type == SOCK_DGRAM || sk->sk_type == SOCK_RAW) {
-               sock_tx_timestamp(sk, &tx_flags);
+               sock_tx_timestamp(sk, sockc->tsflags, &tx_flags);
                if (tx_flags & SKBTX_ANY_SW_TSTAMP &&
                    sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID)
                        tskey = sk->sk_tskey++;
@@ -1563,9 +1559,10 @@ error:
 int ip6_append_data(struct sock *sk,
                    int getfrag(void *from, char *to, int offset, int len,
                                int odd, struct sk_buff *skb),
-                   void *from, int length, int transhdrlen, int hlimit,
-                   int tclass, struct ipv6_txoptions *opt, struct flowi6 *fl6,
-                   struct rt6_info *rt, unsigned int flags, int dontfrag)
+                   void *from, int length, int transhdrlen,
+                   struct ipcm6_cookie *ipc6, struct flowi6 *fl6,
+                   struct rt6_info *rt, unsigned int flags,
+                   const struct sockcm_cookie *sockc)
 {
        struct inet_sock *inet = inet_sk(sk);
        struct ipv6_pinfo *np = inet6_sk(sk);
@@ -1578,12 +1575,12 @@ int ip6_append_data(struct sock *sk,
                /*
                 * setup for corking
                 */
-               err = ip6_setup_cork(sk, &inet->cork, &np->cork, hlimit,
-                                    tclass, opt, rt, fl6);
+               err = ip6_setup_cork(sk, &inet->cork, &np->cork,
+                                    ipc6, rt, fl6);
                if (err)
                        return err;
 
-               exthdrlen = (opt ? opt->opt_flen : 0);
+               exthdrlen = (ipc6->opt ? ipc6->opt->opt_flen : 0);
                length += exthdrlen;
                transhdrlen += exthdrlen;
        } else {
@@ -1593,7 +1590,7 @@ int ip6_append_data(struct sock *sk,
 
        return __ip6_append_data(sk, fl6, &sk->sk_write_queue, &inet->cork.base,
                                 &np->cork, sk_page_frag(sk), getfrag,
-                                from, length, transhdrlen, flags, dontfrag);
+                                from, length, transhdrlen, flags, ipc6, sockc);
 }
 EXPORT_SYMBOL_GPL(ip6_append_data);
 
@@ -1749,15 +1746,14 @@ struct sk_buff *ip6_make_skb(struct sock *sk,
                             int getfrag(void *from, char *to, int offset,
                                         int len, int odd, struct sk_buff *skb),
                             void *from, int length, int transhdrlen,
-                            int hlimit, int tclass,
-                            struct ipv6_txoptions *opt, struct flowi6 *fl6,
+                            struct ipcm6_cookie *ipc6, struct flowi6 *fl6,
                             struct rt6_info *rt, unsigned int flags,
-                            int dontfrag)
+                            const struct sockcm_cookie *sockc)
 {
        struct inet_cork_full cork;
        struct inet6_cork v6_cork;
        struct sk_buff_head queue;
-       int exthdrlen = (opt ? opt->opt_flen : 0);
+       int exthdrlen = (ipc6->opt ? ipc6->opt->opt_flen : 0);
        int err;
 
        if (flags & MSG_PROBE)
@@ -1769,17 +1765,17 @@ struct sk_buff *ip6_make_skb(struct sock *sk,
        cork.base.addr = 0;
        cork.base.opt = NULL;
        v6_cork.opt = NULL;
-       err = ip6_setup_cork(sk, &cork, &v6_cork, hlimit, tclass, opt, rt, fl6);
+       err = ip6_setup_cork(sk, &cork, &v6_cork, ipc6, rt, fl6);
        if (err)
                return ERR_PTR(err);
 
-       if (dontfrag < 0)
-               dontfrag = inet6_sk(sk)->dontfrag;
+       if (ipc6->dontfrag < 0)
+               ipc6->dontfrag = inet6_sk(sk)->dontfrag;
 
        err = __ip6_append_data(sk, fl6, &queue, &cork.base, &v6_cork,
                                &current->task_frag, getfrag, from,
                                length + exthdrlen, transhdrlen + exthdrlen,
-                               flags, dontfrag);
+                               flags, ipc6, sockc);
        if (err) {
                __ip6_flush_pending_frames(sk, &queue, &cork, &v6_cork);
                return ERR_PTR(err);
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