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ipv6: add a struct inet6_skb_parm param to ipv6_opt_accepted()
ipv6_opt_accepted() assumes IP6CB(skb) holds the struct inet6_skb_parm that it needs. Lets not assume this, as TCP stack might use a different place. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -288,7 +288,8 @@ struct ipv6_txoptions *ipv6_renew_options(struct sock *sk,
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struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
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struct ipv6_txoptions *opt);
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bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb);
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bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb,
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const struct inet6_skb_parm *opt);
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static inline bool ipv6_accept_ra(struct inet6_dev *idev)
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{
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@ -404,7 +404,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
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ireq->ir_v6_rmt_addr = ipv6_hdr(skb)->saddr;
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ireq->ir_v6_loc_addr = ipv6_hdr(skb)->daddr;
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if (ipv6_opt_accepted(sk, skb) ||
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if (ipv6_opt_accepted(sk, skb, IP6CB(skb)) ||
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np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo ||
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np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim) {
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atomic_inc(&skb->users);
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@ -672,10 +672,10 @@ int inet6_sk_rebuild_header(struct sock *sk)
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}
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EXPORT_SYMBOL_GPL(inet6_sk_rebuild_header);
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bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb)
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bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb,
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const struct inet6_skb_parm *opt)
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{
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const struct ipv6_pinfo *np = inet6_sk(sk);
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const struct inet6_skb_parm *opt = IP6CB(skb);
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if (np->rxopt.all) {
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if ((opt->hop && (np->rxopt.bits.hopopts ||
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@ -203,7 +203,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
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ireq->ir_num = ntohs(th->dest);
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ireq->ir_v6_rmt_addr = ipv6_hdr(skb)->saddr;
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ireq->ir_v6_loc_addr = ipv6_hdr(skb)->daddr;
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if (ipv6_opt_accepted(sk, skb) ||
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if (ipv6_opt_accepted(sk, skb, &TCP_SKB_CB(skb)->header.h6) ||
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np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo ||
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np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim) {
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atomic_inc(&skb->users);
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@ -742,7 +742,8 @@ static void tcp_v6_init_req(struct request_sock *req, struct sock *sk,
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ireq->ir_iif = inet6_iif(skb);
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if (!TCP_SKB_CB(skb)->tcp_tw_isn &&
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(ipv6_opt_accepted(sk, skb) || np->rxopt.bits.rxinfo ||
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(ipv6_opt_accepted(sk, skb, &TCP_SKB_CB(skb)->header.h6) ||
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np->rxopt.bits.rxinfo ||
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np->rxopt.bits.rxoinfo || np->rxopt.bits.rxhlim ||
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np->rxopt.bits.rxohlim || np->repflow)) {
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atomic_inc(&skb->users);
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@ -1367,7 +1368,7 @@ ipv6_pktoptions:
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np->rcv_flowinfo = ip6_flowinfo(ipv6_hdr(opt_skb));
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if (np->repflow)
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np->flow_label = ip6_flowlabel(ipv6_hdr(opt_skb));
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if (ipv6_opt_accepted(sk, opt_skb)) {
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if (ipv6_opt_accepted(sk, opt_skb, &TCP_SKB_CB(opt_skb)->header.h6)) {
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skb_set_owner_r(opt_skb, sk);
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opt_skb = xchg(&np->pktoptions, opt_skb);
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} else {
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