From eddc9ec53be2ecdbf4efe0efd4a83052594f0ac0 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 20 Apr 2007 22:47:35 -0700 Subject: [SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- drivers/s390/net/qeth_tso.h | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'drivers/s390/net/qeth_tso.h') diff --git a/drivers/s390/net/qeth_tso.h b/drivers/s390/net/qeth_tso.h index 14504afb044e..255cb2e9c796 100644 --- a/drivers/s390/net/qeth_tso.h +++ b/drivers/s390/net/qeth_tso.h @@ -40,7 +40,7 @@ qeth_tso_fill_header(struct qeth_card *card, struct sk_buff *skb) QETH_DBF_TEXT(trace, 5, "tsofhdr"); hdr = (struct qeth_hdr_tso *) skb->data; - iph = skb->nh.iph; + iph = ip_hdr(skb); tcph = skb->h.th; /*fix header to TSO values ...*/ hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO; @@ -63,13 +63,9 @@ qeth_tso_fill_header(struct qeth_card *card, struct sk_buff *skb) static inline void qeth_tso_set_tcpip_header(struct qeth_card *card, struct sk_buff *skb) { - struct iphdr *iph; - struct ipv6hdr *ip6h; - struct tcphdr *tcph; - - iph = skb->nh.iph; - ip6h = skb->nh.ipv6h; - tcph = skb->h.th; + struct iphdr *iph = ip_hdr(skb); + struct ipv6hdr *ip6h = skb->nh.ipv6h; + struct tcphdr *tcph = skb->h.th; tcph->check = 0; if (skb->protocol == ETH_P_IPV6) { -- cgit v1.2.3 From 0660e03f6b18f19b6bbafe7583265a51b90daf36 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 25 Apr 2007 17:54:47 -0700 Subject: [SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h Now the skb->nh union has just one member, .raw, i.e. it is just like the skb->mac union, strange, no? I'm just leaving it like that till the transport layer is done with, when we'll rename skb->mac.raw to skb->mac_header (or ->mac_header_offset?), ditto for ->{h,nh}. Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- drivers/net/bonding/bond_alb.c | 4 +- drivers/net/e1000/e1000_main.c | 10 ++-- drivers/s390/net/qeth_eddp.c | 8 +-- drivers/s390/net/qeth_main.c | 3 +- drivers/s390/net/qeth_tso.h | 2 +- include/linux/ipv6.h | 5 ++ include/linux/skbuff.h | 1 - include/net/inet_ecn.h | 2 +- net/bridge/br_netfilter.c | 6 +-- net/core/pktgen.c | 2 +- net/dccp/ipv6.c | 32 +++++------ net/ipv4/ip_gre.c | 4 +- net/ipv4/xfrm4_mode_tunnel.c | 2 +- net/ipv6/ah6.c | 14 ++--- net/ipv6/datagram.c | 16 +++--- net/ipv6/esp6.c | 2 +- net/ipv6/exthdrs.c | 20 +++---- net/ipv6/icmp.c | 20 +++---- net/ipv6/ip6_input.c | 8 +-- net/ipv6/ip6_output.c | 37 +++++++------ net/ipv6/ip6_tunnel.c | 16 +++--- net/ipv6/ipcomp6.c | 2 +- net/ipv6/ipv6_sockglue.c | 6 +-- net/ipv6/mcast.c | 15 +++--- net/ipv6/mip6.c | 20 +++---- net/ipv6/ndisc.c | 50 ++++++++--------- net/ipv6/netfilter.c | 8 +-- net/ipv6/netfilter/ip6_tables.c | 8 +-- net/ipv6/netfilter/ip6t_HL.c | 2 +- net/ipv6/netfilter/ip6t_LOG.c | 2 +- net/ipv6/netfilter/ip6t_REJECT.c | 8 +-- net/ipv6/netfilter/ip6t_eui64.c | 4 +- net/ipv6/netfilter/ip6t_hl.c | 2 +- net/ipv6/netfilter/ip6t_ipv6header.c | 2 +- net/ipv6/netfilter/ip6table_mangle.c | 14 ++--- net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c | 19 +++---- net/ipv6/netfilter/nf_conntrack_reasm.c | 16 +++--- net/ipv6/raw.c | 17 +++--- net/ipv6/reassembly.c | 12 ++--- net/ipv6/route.c | 4 +- net/ipv6/sit.c | 8 +-- net/ipv6/tcp_ipv6.c | 75 +++++++++++++------------- net/ipv6/udp.c | 17 +++--- net/ipv6/xfrm6_input.c | 4 +- net/ipv6/xfrm6_mode_beet.c | 6 +-- net/ipv6/xfrm6_mode_ro.c | 2 +- net/ipv6/xfrm6_mode_transport.c | 4 +- net/ipv6/xfrm6_mode_tunnel.c | 10 ++-- net/ipv6/xfrm6_policy.c | 2 +- net/ipv6/xfrm6_tunnel.c | 2 +- net/netfilter/xt_DSCP.c | 4 +- net/netfilter/xt_TCPMSS.c | 4 +- net/netfilter/xt_dscp.c | 2 +- net/netfilter/xt_hashlimit.c | 4 +- net/netfilter/xt_length.c | 3 +- net/sched/cls_rsvp.h | 2 +- net/sched/sch_dsmark.c | 4 +- net/sched/sch_sfq.c | 2 +- net/sctp/ipv6.c | 8 +-- 59 files changed, 296 insertions(+), 292 deletions(-) (limited to 'drivers/s390/net/qeth_tso.h') diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index 8555afa574a4..b8cf777542fa 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -1304,8 +1304,8 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev) break; } - hash_start = (char*)&(skb->nh.ipv6h->daddr); - hash_size = sizeof(skb->nh.ipv6h->daddr); + hash_start = (char *)&(ipv6_hdr(skb)->daddr); + hash_size = sizeof(ipv6_hdr(skb)->daddr); break; case ETH_P_IPX: if (ipx_hdr(skb)->ipx_checksum != diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index c324866c9789..a3d9986b4170 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -2899,13 +2899,11 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring, cmd_length = E1000_TXD_CMD_IP; ipcse = skb->h.raw - skb->data - 1; } else if (skb->protocol == htons(ETH_P_IPV6)) { - skb->nh.ipv6h->payload_len = 0; + ipv6_hdr(skb)->payload_len = 0; skb->h.th->check = - ~csum_ipv6_magic(&skb->nh.ipv6h->saddr, - &skb->nh.ipv6h->daddr, - 0, - IPPROTO_TCP, - 0); + ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, + 0, IPPROTO_TCP, 0); ipcse = 0; } ipcss = skb_network_offset(skb); diff --git a/drivers/s390/net/qeth_eddp.c b/drivers/s390/net/qeth_eddp.c index 1574247abaa1..90da58b4e532 100644 --- a/drivers/s390/net/qeth_eddp.c +++ b/drivers/s390/net/qeth_eddp.c @@ -479,9 +479,11 @@ qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, skb->h.raw, skb->h.th->doff * 4); else - eddp = qeth_eddp_create_eddp_data(qhdr, (u8 *)skb->nh.ipv6h, - sizeof(struct ipv6hdr), - (u8 *)skb->h.th, skb->h.th->doff*4); + eddp = qeth_eddp_create_eddp_data(qhdr, + skb_network_header(skb), + sizeof(struct ipv6hdr), + skb->h.raw, + skb->h.th->doff * 4); if (eddp == NULL) { QETH_DBF_TEXT(trace, 2, "eddpfcnm"); diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c index 8a07d548a05a..df7f279ec408 100644 --- a/drivers/s390/net/qeth_main.c +++ b/drivers/s390/net/qeth_main.c @@ -4053,7 +4053,8 @@ qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, skb->dst->neighbour->primary_key, 16); } else { /* fill in destination address used in ip header */ - memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16); + memcpy(hdr->hdr.l3.dest_addr, + &ipv6_hdr(skb)->daddr, 16); } } else { /* passthrough */ if((skb->dev->type == ARPHRD_IEEE802_TR) && diff --git a/drivers/s390/net/qeth_tso.h b/drivers/s390/net/qeth_tso.h index 255cb2e9c796..4040bdd8c327 100644 --- a/drivers/s390/net/qeth_tso.h +++ b/drivers/s390/net/qeth_tso.h @@ -64,7 +64,7 @@ static inline void qeth_tso_set_tcpip_header(struct qeth_card *card, struct sk_buff *skb) { struct iphdr *iph = ip_hdr(skb); - struct ipv6hdr *ip6h = skb->nh.ipv6h; + struct ipv6hdr *ip6h = ipv6_hdr(skb); struct tcphdr *tcph = skb->h.th; tcph->check = 0; diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index e046b22a2222..ec79c59b2077 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -223,6 +223,11 @@ enum { #include /* struct ipv6_mc_socklist */ #include +static inline struct ipv6hdr *ipv6_hdr(const struct sk_buff *skb) +{ + return (struct ipv6hdr *)skb_network_header(skb); +} + /* This structure contains results of exthdrs parsing as offsets from skb->nh. diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 9cb674b12b29..31806a7ce40e 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -247,7 +247,6 @@ struct sk_buff { } h; union { - struct ipv6hdr *ipv6h; unsigned char *raw; } nh; diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h index 6fd4452c15d9..06a2c69a89e5 100644 --- a/include/net/inet_ecn.h +++ b/include/net/inet_ecn.h @@ -122,7 +122,7 @@ static inline int INET_ECN_set_ce(struct sk_buff *skb) case __constant_htons(ETH_P_IPV6): if (skb_network_header(skb) + sizeof(struct ipv6hdr) <= skb->tail) - return IP6_ECN_set_ce(skb->nh.ipv6h); + return IP6_ECN_set_ce(ipv6_hdr(skb)); break; } diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index 0ee74b1e4770..f2796c97b4a2 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -372,7 +372,7 @@ static struct net_device *setup_pre_routing(struct sk_buff *skb) /* We only check the length. A bridge shouldn't do any hop-by-hop stuff anyway */ static int check_hbh_len(struct sk_buff *skb) { - unsigned char *raw = (u8 *) (skb->nh.ipv6h + 1); + unsigned char *raw = (u8 *)(ipv6_hdr(skb) + 1); u32 pkt_len; const unsigned char *nh = skb_network_header(skb); int off = raw - nh; @@ -400,7 +400,7 @@ static int check_hbh_len(struct sk_buff *skb) goto bad; pkt_len = ntohl(*(__be32 *) (nh + off + 2)); if (pkt_len <= IPV6_MAXPLEN || - skb->nh.ipv6h->payload_len) + ipv6_hdr(skb)->payload_len) goto bad; if (pkt_len > skb->len - sizeof(struct ipv6hdr)) goto bad; @@ -441,7 +441,7 @@ static unsigned int br_nf_pre_routing_ipv6(unsigned int hook, if (!pskb_may_pull(skb, sizeof(struct ipv6hdr))) goto inhdr_error; - hdr = skb->nh.ipv6h; + hdr = ipv6_hdr(skb); if (hdr->version != 6) goto inhdr_error; diff --git a/net/core/pktgen.c b/net/core/pktgen.c index e0faff8eb652..ee82364c8f31 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -2736,7 +2736,7 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev, skb->protocol = protocol; skb->dev = odev; skb->pkt_type = PACKET_HOST; - skb->nh.ipv6h = iph; + skb->nh.raw = (unsigned char *)iph; skb->h.uh = udph; if (pkt_dev->nfrags <= 0) diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 627d0c3c51cf..64eac2515aa2 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -84,8 +84,8 @@ static inline __u32 secure_dccpv6_sequence_number(__be32 *saddr, __be32 *daddr, static inline __u32 dccp_v6_init_sequence(struct sk_buff *skb) { - return secure_dccpv6_sequence_number(skb->nh.ipv6h->daddr.s6_addr32, - skb->nh.ipv6h->saddr.s6_addr32, + return secure_dccpv6_sequence_number(ipv6_hdr(skb)->daddr.s6_addr32, + ipv6_hdr(skb)->saddr.s6_addr32, dccp_hdr(skb)->dccph_dport, dccp_hdr(skb)->dccph_sport ); @@ -313,6 +313,7 @@ static void dccp_v6_reqsk_destructor(struct request_sock *req) static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb) { struct dccp_hdr *rxdh = dccp_hdr(rxskb), *dh; + struct ipv6hdr *rxip6h; const u32 dccp_hdr_reset_len = sizeof(struct dccp_hdr) + sizeof(struct dccp_hdr_ext) + sizeof(struct dccp_hdr_reset); @@ -352,12 +353,13 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb) dccp_hdr_set_ack(dccp_hdr_ack_bits(skb), DCCP_SKB_CB(rxskb)->dccpd_seq); dccp_csum_outgoing(skb); - dh->dccph_checksum = dccp_v6_csum_finish(skb, &rxskb->nh.ipv6h->saddr, - &rxskb->nh.ipv6h->daddr); + rxip6h = ipv6_hdr(rxskb); + dh->dccph_checksum = dccp_v6_csum_finish(skb, &rxip6h->saddr, + &rxip6h->daddr); memset(&fl, 0, sizeof(fl)); - ipv6_addr_copy(&fl.fl6_dst, &rxskb->nh.ipv6h->saddr); - ipv6_addr_copy(&fl.fl6_src, &rxskb->nh.ipv6h->daddr); + ipv6_addr_copy(&fl.fl6_dst, &rxip6h->saddr); + ipv6_addr_copy(&fl.fl6_src, &rxip6h->daddr); fl.proto = IPPROTO_DCCP; fl.oif = inet6_iif(rxskb); @@ -390,7 +392,7 @@ static struct request_sock_ops dccp6_request_sock_ops = { static struct sock *dccp_v6_hnd_req(struct sock *sk,struct sk_buff *skb) { const struct dccp_hdr *dh = dccp_hdr(skb); - const struct ipv6hdr *iph = skb->nh.ipv6h; + const struct ipv6hdr *iph = ipv6_hdr(skb); struct sock *nsk; struct request_sock **prev; /* Find possible connection requests. */ @@ -460,8 +462,8 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb) goto drop_and_free; ireq6 = inet6_rsk(req); - ipv6_addr_copy(&ireq6->rmt_addr, &skb->nh.ipv6h->saddr); - ipv6_addr_copy(&ireq6->loc_addr, &skb->nh.ipv6h->daddr); + ipv6_addr_copy(&ireq6->rmt_addr, &ipv6_hdr(skb)->saddr); + ipv6_addr_copy(&ireq6->loc_addr, &ipv6_hdr(skb)->daddr); ireq6->pktopts = NULL; if (ipv6_opt_accepted(sk, skb) || @@ -546,7 +548,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk, newnp->pktoptions = NULL; newnp->opt = NULL; newnp->mcast_oif = inet6_iif(skb); - newnp->mcast_hops = skb->nh.ipv6h->hop_limit; + newnp->mcast_hops = ipv6_hdr(skb)->hop_limit; /* * No need to charge this sock to the relevant IPv6 refcnt debug socks count @@ -653,7 +655,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk, } newnp->opt = NULL; newnp->mcast_oif = inet6_iif(skb); - newnp->mcast_hops = skb->nh.ipv6h->hop_limit; + newnp->mcast_hops = ipv6_hdr(skb)->hop_limit; /* * Clone native IPv6 options from listening socket (if any) @@ -826,8 +828,8 @@ static int dccp_v6_rcv(struct sk_buff **pskb) goto discard_it; /* Step 1: If header checksum is incorrect, drop packet and return. */ - if (dccp_v6_csum_finish(skb, &skb->nh.ipv6h->saddr, - &skb->nh.ipv6h->daddr)) { + if (dccp_v6_csum_finish(skb, &ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr)) { DCCP_WARN("dropped packet with invalid checksum\n"); goto discard_it; } @@ -844,9 +846,9 @@ static int dccp_v6_rcv(struct sk_buff **pskb) /* Step 2: * Look up flow ID in table and get corresponding socket */ - sk = __inet6_lookup(&dccp_hashinfo, &skb->nh.ipv6h->saddr, + sk = __inet6_lookup(&dccp_hashinfo, &ipv6_hdr(skb)->saddr, dh->dccph_sport, - &skb->nh.ipv6h->daddr, ntohs(dh->dccph_dport), + &ipv6_hdr(skb)->daddr, ntohs(dh->dccph_dport), inet6_iif(skb)); /* * Step 2: diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 851f46b910f2..969fe31723a7 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -535,7 +535,7 @@ static inline void ipgre_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb) if (skb->protocol == htons(ETH_P_IP)) { IP_ECN_set_ce(ip_hdr(skb)); } else if (skb->protocol == htons(ETH_P_IPV6)) { - IP6_ECN_set_ce(skb->nh.ipv6h); + IP6_ECN_set_ce(ipv6_hdr(skb)); } } } @@ -721,7 +721,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) addr_type = ipv6_addr_type(addr6); if (addr_type == IPV6_ADDR_ANY) { - addr6 = &skb->nh.ipv6h->daddr; + addr6 = &ipv6_hdr(skb)->daddr; addr_type = ipv6_addr_type(addr6); } diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c index faa1b9a76e76..edba75610a46 100644 --- a/net/ipv4/xfrm4_mode_tunnel.c +++ b/net/ipv4/xfrm4_mode_tunnel.c @@ -26,7 +26,7 @@ static inline void ipip_ecn_decapsulate(struct sk_buff *skb) static inline void ipip6_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb) { if (INET_ECN_is_ce(iph->tos)) - IP6_ECN_set_ce(skb->nh.ipv6h); + IP6_ECN_set_ce(ipv6_hdr(skb)); } /* Add encapsulation header. diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c index 1c914386982f..b682d2368c2a 100644 --- a/net/ipv6/ah6.c +++ b/net/ipv6/ah6.c @@ -325,6 +325,7 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb) */ struct ipv6_auth_hdr *ah; + struct ipv6hdr *ip6h; struct ah_data *ahp; unsigned char *tmp_hdr = NULL; u16 hdr_len; @@ -357,13 +358,14 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb) tmp_hdr = kmemdup(skb_network_header(skb), hdr_len, GFP_ATOMIC); if (!tmp_hdr) goto out; - if (ipv6_clear_mutable_options(skb->nh.ipv6h, hdr_len, XFRM_POLICY_IN)) + ip6h = ipv6_hdr(skb); + if (ipv6_clear_mutable_options(ip6h, hdr_len, XFRM_POLICY_IN)) goto free_out; - skb->nh.ipv6h->priority = 0; - skb->nh.ipv6h->flow_lbl[0] = 0; - skb->nh.ipv6h->flow_lbl[1] = 0; - skb->nh.ipv6h->flow_lbl[2] = 0; - skb->nh.ipv6h->hop_limit = 0; + ip6h->priority = 0; + ip6h->flow_lbl[0] = 0; + ip6h->flow_lbl[1] = 0; + ip6h->flow_lbl[2] = 0; + ip6h->hop_limit = 0; { u8 auth_data[MAX_AH_AUTH_LEN]; diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index ac95d3bfdfb7..f429290c2c37 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -254,7 +254,7 @@ void ipv6_local_error(struct sock *sk, int err, struct flowi *fl, u32 info) skb_put(skb, sizeof(struct ipv6hdr)); skb_reset_network_header(skb); - iph = skb->nh.ipv6h; + iph = ipv6_hdr(skb); ipv6_addr_copy(&iph->daddr, &fl->fl6_dst); serr = SKB_EXT_ERR(skb); @@ -340,7 +340,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len) sin->sin6_flowinfo = 0; sin->sin6_scope_id = 0; if (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP6) { - ipv6_addr_copy(&sin->sin6_addr, &skb->nh.ipv6h->saddr); + ipv6_addr_copy(&sin->sin6_addr, &ipv6_hdr(skb)->saddr); if (np->rxopt.all) datagram_recv_ctl(sk, msg, skb); if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL) @@ -391,17 +391,17 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb) struct in6_pktinfo src_info; src_info.ipi6_ifindex = opt->iif; - ipv6_addr_copy(&src_info.ipi6_addr, &skb->nh.ipv6h->daddr); + ipv6_addr_copy(&src_info.ipi6_addr, &ipv6_hdr(skb)->daddr); put_cmsg(msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info); } if (np->rxopt.bits.rxhlim) { - int hlim = skb->nh.ipv6h->hop_limit; + int hlim = ipv6_hdr(skb)->hop_limit; put_cmsg(msg, SOL_IPV6, IPV6_HOPLIMIT, sizeof(hlim), &hlim); } if (np->rxopt.bits.rxtclass) { - int tclass = (ntohl(*(__be32 *)skb->nh.ipv6h) >> 20) & 0xff; + int tclass = (ntohl(*(__be32 *)ipv6_hdr(skb)) >> 20) & 0xff; put_cmsg(msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass); } @@ -428,7 +428,7 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb) * IPV6_RECVDSTOPTS is more generic. --yoshfuji */ unsigned int off = sizeof(struct ipv6hdr); - u8 nexthdr = skb->nh.ipv6h->nexthdr; + u8 nexthdr = ipv6_hdr(skb)->nexthdr; while (off <= opt->lastopt) { unsigned len; @@ -466,11 +466,11 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb) struct in6_pktinfo src_info; src_info.ipi6_ifindex = opt->iif; - ipv6_addr_copy(&src_info.ipi6_addr, &skb->nh.ipv6h->daddr); + ipv6_addr_copy(&src_info.ipi6_addr, &ipv6_hdr(skb)->daddr); put_cmsg(msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info); } if (np->rxopt.bits.rxohlim) { - int hlim = skb->nh.ipv6h->hop_limit; + int hlim = ipv6_hdr(skb)->hop_limit; put_cmsg(msg, SOL_IPV6, IPV6_2292HOPLIMIT, sizeof(hlim), &hlim); } if (np->rxopt.bits.ohopopts && opt->hop) { diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c index 6e6b57ac8013..7aff380e74ef 100644 --- a/net/ipv6/esp6.c +++ b/net/ipv6/esp6.c @@ -191,7 +191,7 @@ static int esp6_input(struct xfrm_state *x, struct sk_buff *skb) skb->ip_summed = CHECKSUM_NONE; esph = (struct ipv6_esp_hdr*)skb->data; - iph = skb->nh.ipv6h; + iph = ipv6_hdr(skb); /* Get ivec. This can be wrong, check against another impls. */ if (esp->conf.ivlen) diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index 9ebf120ba6d3..dab069b0b3f6 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -125,7 +125,7 @@ static int ip6_tlvopt_unknown(struct sk_buff **skbp, int optoff) /* Actually, it is redundant check. icmp_send will recheck in any case. */ - if (ipv6_addr_is_multicast(&skb->nh.ipv6h->daddr)) + if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr)) break; case 2: /* send ICMP PARM PROB regardless and drop packet */ icmpv6_param_prob(skb, ICMPV6_UNK_OPTION, optoff); @@ -202,7 +202,7 @@ static int ipv6_dest_hao(struct sk_buff **skbp, int optoff) struct sk_buff *skb = *skbp; struct ipv6_destopt_hao *hao; struct inet6_skb_parm *opt = IP6CB(skb); - struct ipv6hdr *ipv6h = skb->nh.ipv6h; + struct ipv6hdr *ipv6h = ipv6_hdr(skb); struct in6_addr tmp_addr; int ret; @@ -248,7 +248,7 @@ static int ipv6_dest_hao(struct sk_buff **skbp, int optoff) *skbp = skb = skb2; hao = (struct ipv6_destopt_hao *)(skb_network_header(skb2) + optoff); - ipv6h = skb2->nh.ipv6h; + ipv6h = ipv6_hdr(skb2); } if (skb->ip_summed == CHECKSUM_COMPLETE) @@ -414,7 +414,7 @@ static int ipv6_rthdr_rcv(struct sk_buff **skbp) return -1; } - if (ipv6_addr_is_multicast(&skb->nh.ipv6h->daddr) || + if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr) || skb->pkt_type != PACKET_HOST) { IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INADDRERRORS); @@ -522,7 +522,7 @@ looped_back: #ifdef CONFIG_IPV6_MIP6 case IPV6_SRCRT_TYPE_2: if (xfrm6_input_addr(skb, (xfrm_address_t *)addr, - (xfrm_address_t *)&skb->nh.ipv6h->saddr, + (xfrm_address_t *)&ipv6_hdr(skb)->saddr, IPPROTO_ROUTING) < 0) { IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INADDRERRORS); @@ -549,8 +549,8 @@ looped_back: } ipv6_addr_copy(&daddr, addr); - ipv6_addr_copy(addr, &skb->nh.ipv6h->daddr); - ipv6_addr_copy(&skb->nh.ipv6h->daddr, &daddr); + ipv6_addr_copy(addr, &ipv6_hdr(skb)->daddr); + ipv6_addr_copy(&ipv6_hdr(skb)->daddr, &daddr); dst_release(xchg(&skb->dst, NULL)); ip6_route_input(skb); @@ -561,7 +561,7 @@ looped_back: } if (skb->dst->dev->flags&IFF_LOOPBACK) { - if (skb->nh.ipv6h->hop_limit <= 1) { + if (ipv6_hdr(skb)->hop_limit <= 1) { IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS); icmpv6_send(skb, ICMPV6_TIME_EXCEED, ICMPV6_EXC_HOPLIMIT, @@ -569,7 +569,7 @@ looped_back: kfree_skb(skb); return -1; } - skb->nh.ipv6h->hop_limit--; + ipv6_hdr(skb)->hop_limit--; goto looped_back; } @@ -698,7 +698,7 @@ static int ipv6_hop_jumbo(struct sk_buff **skbp, int optoff) icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, optoff+2); return 0; } - if (skb->nh.ipv6h->payload_len) { + if (ipv6_hdr(skb)->payload_len) { IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS); icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, optoff); return 0; diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index e5293b34229f..3a01effda695 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -129,9 +129,9 @@ void icmpv6_param_prob(struct sk_buff *skb, int code, int pos) static int is_ineligible(struct sk_buff *skb) { - int ptr = (u8*)(skb->nh.ipv6h+1) - skb->data; + int ptr = (u8 *)(ipv6_hdr(skb) + 1) - skb->data; int len = skb->len - ptr; - __u8 nexthdr = skb->nh.ipv6h->nexthdr; + __u8 nexthdr = ipv6_hdr(skb)->nexthdr; if (len < 0) return 1; @@ -275,7 +275,7 @@ static int icmpv6_getfrag(void *from, char *to, int offset, int len, int odd, st #ifdef CONFIG_IPV6_MIP6 static void mip6_addr_swap(struct sk_buff *skb) { - struct ipv6hdr *iph = skb->nh.ipv6h; + struct ipv6hdr *iph = ipv6_hdr(skb); struct inet6_skb_parm *opt = IP6CB(skb); struct ipv6_destopt_hao *hao; struct in6_addr tmp; @@ -303,7 +303,7 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info, struct net_device *dev) { struct inet6_dev *idev = NULL; - struct ipv6hdr *hdr = skb->nh.ipv6h; + struct ipv6hdr *hdr = ipv6_hdr(skb); struct sock *sk; struct ipv6_pinfo *np; struct in6_addr *saddr = NULL; @@ -485,7 +485,7 @@ static void icmpv6_echo_reply(struct sk_buff *skb) int hlimit; int tclass; - saddr = &skb->nh.ipv6h->daddr; + saddr = &ipv6_hdr(skb)->daddr; if (!ipv6_unicast_destination(skb)) saddr = NULL; @@ -495,7 +495,7 @@ static void icmpv6_echo_reply(struct sk_buff *skb) memset(&fl, 0, sizeof(fl)); fl.proto = IPPROTO_ICMPV6; - ipv6_addr_copy(&fl.fl6_dst, &skb->nh.ipv6h->saddr); + ipv6_addr_copy(&fl.fl6_dst, &ipv6_hdr(skb)->saddr); if (saddr) ipv6_addr_copy(&fl.fl6_src, saddr); fl.oif = skb->dev->ifindex; @@ -583,8 +583,8 @@ static void icmpv6_notify(struct sk_buff *skb, int type, int code, __be32 info) if (!pskb_may_pull(skb, inner_offset+8)) return; - saddr = &skb->nh.ipv6h->saddr; - daddr = &skb->nh.ipv6h->daddr; + saddr = &ipv6_hdr(skb)->saddr; + daddr = &ipv6_hdr(skb)->daddr; /* BUGGG_FUTURE: we should try to parse exthdrs in this packet. Without this we will not able f.e. to make source routed @@ -628,8 +628,8 @@ static int icmpv6_rcv(struct sk_buff **pskb) ICMP6_INC_STATS_BH(idev, ICMP6_MIB_INMSGS); - saddr = &skb->nh.ipv6h->saddr; - daddr = &skb->nh.ipv6h->daddr; + saddr = &ipv6_hdr(skb)->saddr; + daddr = &ipv6_hdr(skb)->daddr; /* Perform checksum. */ switch (skb->ip_summed) { diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c index aecc74da0721..9c3c787a21c1 100644 --- a/net/ipv6/ip6_input.c +++ b/net/ipv6/ip6_input.c @@ -96,7 +96,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt if (unlikely(!pskb_may_pull(skb, sizeof(*hdr)))) goto err; - hdr = skb->nh.ipv6h; + hdr = ipv6_hdr(skb); if (hdr->version != 6) goto err; @@ -116,7 +116,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt IP6_INC_STATS_BH(idev, IPSTATS_MIB_INHDRERRORS); goto drop; } - hdr = skb->nh.ipv6h; + hdr = ipv6_hdr(skb); } if (hdr->nexthdr == NEXTHDR_HOP) { @@ -183,7 +183,7 @@ resubmit: skb_postpull_rcsum(skb, skb_network_header(skb), skb->h.raw - skb->nh.raw); - hdr = skb->nh.ipv6h; + hdr = ipv6_hdr(skb); if (ipv6_addr_is_multicast(&hdr->daddr) && !ipv6_chk_mcast_addr(skb->dev, &hdr->daddr, &hdr->saddr) && @@ -234,7 +234,7 @@ int ip6_mc_input(struct sk_buff *skb) IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INMCASTPKTS); - hdr = skb->nh.ipv6h; + hdr = ipv6_hdr(skb); deliver = likely(!(skb->dev->flags & (IFF_PROMISC|IFF_ALLMULTI))) || ipv6_chk_mcast_addr(skb->dev, &hdr->daddr, NULL); diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index bd25825c0ccd..1900c6226866 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -107,13 +107,13 @@ static int ip6_output2(struct sk_buff *skb) skb->protocol = htons(ETH_P_IPV6); skb->dev = dev; - if (ipv6_addr_is_multicast(&skb->nh.ipv6h->daddr)) { + if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr)) { struct ipv6_pinfo* np = skb->sk ? inet6_sk(skb->sk) : NULL; struct inet6_dev *idev = ip6_dst_idev(skb->dst); if (!(dev->flags & IFF_LOOPBACK) && (!np || np->mc_loop) && - ipv6_chk_mcast_addr(dev, &skb->nh.ipv6h->daddr, - &skb->nh.ipv6h->saddr)) { + ipv6_chk_mcast_addr(dev, &ipv6_hdr(skb)->daddr, + &ipv6_hdr(skb)->saddr)) { struct sk_buff *newskb = skb_clone(skb, GFP_ATOMIC); /* Do not check for IFF_ALLMULTI; multicast routing @@ -124,7 +124,7 @@ static int ip6_output2(struct sk_buff *skb) newskb->dev, ip6_dev_loopback_xmit); - if (skb->nh.ipv6h->hop_limit == 0) { + if (ipv6_hdr(skb)->hop_limit == 0) { IP6_INC_STATS(idev, IPSTATS_MIB_OUTDISCARDS); kfree_skb(skb); return 0; @@ -193,7 +193,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl, skb_push(skb, sizeof(struct ipv6hdr)); skb_reset_network_header(skb); - hdr = skb->nh.ipv6h; + hdr = ipv6_hdr(skb); /* * Fill in the IPv6 header @@ -263,8 +263,8 @@ int ip6_nd_hdr(struct sock *sk, struct sk_buff *skb, struct net_device *dev, totlen = len + sizeof(struct ipv6hdr); - hdr = (struct ipv6hdr *) skb_put(skb, sizeof(struct ipv6hdr)); - skb->nh.ipv6h = hdr; + skb->nh.raw = skb_put(skb, sizeof(struct ipv6hdr)); + hdr = ipv6_hdr(skb); *(__be32*)hdr = htonl(0x60000000); @@ -309,7 +309,7 @@ static int ip6_call_ra_chain(struct sk_buff *skb, int sel) static int ip6_forward_proxy_check(struct sk_buff *skb) { - struct ipv6hdr *hdr = skb->nh.ipv6h; + struct ipv6hdr *hdr = ipv6_hdr(skb); u8 nexthdr = hdr->nexthdr; int offset; @@ -366,7 +366,7 @@ static inline int ip6_forward_finish(struct sk_buff *skb) int ip6_forward(struct sk_buff *skb) { struct dst_entry *dst = skb->dst; - struct ipv6hdr *hdr = skb->nh.ipv6h; + struct ipv6hdr *hdr = ipv6_hdr(skb); struct inet6_skb_parm *opt = IP6CB(skb); if (ipv6_devconf.forwarding == 0) @@ -475,7 +475,7 @@ int ip6_forward(struct sk_buff *skb) goto drop; } - hdr = skb->nh.ipv6h; + hdr = ipv6_hdr(skb); /* Mangling hops number delayed to point after skb COW */ @@ -527,10 +527,11 @@ static void ip6_copy_metadata(struct sk_buff *to, struct sk_buff *from) int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr) { u16 offset = sizeof(struct ipv6hdr); - struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1); + struct ipv6_opt_hdr *exthdr = + (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1); unsigned int packet_len = skb->tail - skb_network_header(skb); int found_rhdr = 0; - *nexthdr = &skb->nh.ipv6h->nexthdr; + *nexthdr = &ipv6_hdr(skb)->nexthdr; while (offset + 1 <= packet_len) { @@ -643,7 +644,8 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *)) first_len = skb_pagelen(skb); skb->data_len = first_len - skb_headlen(skb); skb->len = first_len; - skb->nh.ipv6h->payload_len = htons(first_len - sizeof(struct ipv6hdr)); + ipv6_hdr(skb)->payload_len = htons(first_len - + sizeof(struct ipv6hdr)); dst_hold(&rt->u.dst); @@ -665,7 +667,9 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *)) if (frag->next != NULL) fh->frag_off |= htons(IP6_MF); fh->identification = frag_id; - frag->nh.ipv6h->payload_len = htons(frag->len - sizeof(struct ipv6hdr)); + ipv6_hdr(frag)->payload_len = + htons(frag->len - + sizeof(struct ipv6hdr)); ip6_copy_metadata(frag, skb); } @@ -779,7 +783,8 @@ slow_path: fh->frag_off = htons(offset); if (left > 0) fh->frag_off |= htons(IP6_MF); - frag->nh.ipv6h->payload_len = htons(frag->len - sizeof(struct ipv6hdr)); + ipv6_hdr(frag)->payload_len = htons(frag->len - + sizeof(struct ipv6hdr)); ptr += len; offset += len; @@ -1355,7 +1360,7 @@ int ip6_push_pending_frames(struct sock *sk) skb_push(skb, sizeof(struct ipv6hdr)); skb_reset_network_header(skb); - hdr = skb->nh.ipv6h; + hdr = ipv6_hdr(skb); *(__be32*)hdr = fl->fl6_flowlabel | htonl(0x60000000 | ((int)np->cork.tclass << 20)); diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index bb65779be7a6..05b59a77bc69 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -602,7 +602,7 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, skb_reset_network_header(skb2); /* Try to guess incoming interface */ - rt = rt6_lookup(&skb2->nh.ipv6h->saddr, NULL, 0, 0); + rt = rt6_lookup(&ipv6_hdr(skb2)->saddr, NULL, 0, 0); if (rt && rt->rt6i_dev) skb2->dev = rt->rt6i_dev; @@ -636,10 +636,10 @@ static void ip6ip6_dscp_ecn_decapsulate(struct ip6_tnl *t, struct sk_buff *skb) { if (t->parms.flags & IP6_TNL_F_RCV_DSCP_COPY) - ipv6_copy_dscp(ipv6h, skb->nh.ipv6h); + ipv6_copy_dscp(ipv6h, ipv6_hdr(skb)); if (INET_ECN_is_ce(ipv6_get_dsfield(ipv6h))) - IP6_ECN_set_ce(skb->nh.ipv6h); + IP6_ECN_set_ce(ipv6_hdr(skb)); } static inline int ip6_tnl_rcv_ctl(struct ip6_tnl *t) @@ -679,10 +679,8 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol, struct ipv6hdr *ipv6h, struct sk_buff *skb)) { - struct ipv6hdr *ipv6h; struct ip6_tnl *t; - - ipv6h = skb->nh.ipv6h; + struct ipv6hdr *ipv6h = ipv6_hdr(skb); read_lock(&ip6_tnl_lock); @@ -836,7 +834,7 @@ static int ip6_tnl_xmit2(struct sk_buff *skb, { struct ip6_tnl *t = netdev_priv(dev); struct net_device_stats *stats = &t->stat; - struct ipv6hdr *ipv6h = skb->nh.ipv6h; + struct ipv6hdr *ipv6h = ipv6_hdr(skb); struct ipv6_tel_txoption opt; struct dst_entry *dst; struct net_device *tdev; @@ -909,7 +907,7 @@ static int ip6_tnl_xmit2(struct sk_buff *skb, } skb_push(skb, sizeof(struct ipv6hdr)); skb_reset_network_header(skb); - ipv6h = skb->nh.ipv6h; + ipv6h = ipv6_hdr(skb); *(__be32*)ipv6h = fl->fl6_flowlabel | htonl(0x60000000); dsfield = INET_ECN_encapsulate(0, dsfield); ipv6_change_dsfield(ipv6h, ~INET_ECN_MASK, dsfield); @@ -983,7 +981,7 @@ static inline int ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev) { struct ip6_tnl *t = netdev_priv(dev); - struct ipv6hdr *ipv6h = skb->nh.ipv6h; + struct ipv6hdr *ipv6h = ipv6_hdr(skb); int encap_limit = -1; __u16 offset; struct flowi fl; diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c index 3e71d1691b7d..e2404a629680 100644 --- a/net/ipv6/ipcomp6.c +++ b/net/ipv6/ipcomp6.c @@ -79,7 +79,7 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb) skb->ip_summed = CHECKSUM_NONE; /* Remove ipcomp header and decompress original payload */ - iph = skb->nh.ipv6h; + iph = ipv6_hdr(skb); ipch = (void *)skb->data; skb->h.raw = skb->nh.raw + sizeof(*ipch); __skb_pull(skb, sizeof(*ipch)); diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 1d56b465bddb..d16e0fd2cd89 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -101,7 +101,7 @@ static int ipv6_gso_send_check(struct sk_buff *skb) if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h)))) goto out; - ipv6h = skb->nh.ipv6h; + ipv6h = ipv6_hdr(skb); __skb_pull(skb, sizeof(*ipv6h)); err = -EPROTONOSUPPORT; @@ -137,7 +137,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features) if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h)))) goto out; - ipv6h = skb->nh.ipv6h; + ipv6h = ipv6_hdr(skb); __skb_pull(skb, sizeof(*ipv6h)); segs = ERR_PTR(-EPROTONOSUPPORT); @@ -153,7 +153,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features) goto out; for (skb = segs; skb; skb = skb->next) { - ipv6h = skb->nh.ipv6h; + ipv6h = ipv6_hdr(skb); ipv6h->payload_len = htons(skb->len - skb->mac_len - sizeof(*ipv6h)); } diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index 924e24907c3e..b2b37ba48b9c 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -1167,11 +1167,11 @@ int igmp6_event_query(struct sk_buff *skb) return -EINVAL; /* compute payload length excluding extension headers */ - len = ntohs(skb->nh.ipv6h->payload_len) + sizeof(struct ipv6hdr); - len -= (char *)skb->h.raw - (char *)skb->nh.ipv6h; + len = ntohs(ipv6_hdr(skb)->payload_len) + sizeof(struct ipv6hdr); + len -= skb->h.raw - skb->nh.raw; /* Drop queries with not link local source */ - if (!(ipv6_addr_type(&skb->nh.ipv6h->saddr)&IPV6_ADDR_LINKLOCAL)) + if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)) return -EINVAL; idev = in6_dev_get(skb->dev); @@ -1303,7 +1303,7 @@ int igmp6_event_report(struct sk_buff *skb) hdr = (struct icmp6hdr*) skb->h.raw; /* Drop reports with not link local source */ - addr_type = ipv6_addr_type(&skb->nh.ipv6h->saddr); + addr_type = ipv6_addr_type(&ipv6_hdr(skb)->saddr); if (addr_type != IPV6_ADDR_ANY && !(addr_type&IPV6_ADDR_LINKLOCAL)) return -EINVAL; @@ -1441,7 +1441,7 @@ static inline int mld_dev_queue_xmit2(struct sk_buff *skb) unsigned char ha[MAX_ADDR_LEN]; int err; - ndisc_mc_map(&skb->nh.ipv6h->daddr, ha, dev, 1); + ndisc_mc_map(&ipv6_hdr(skb)->daddr, ha, dev, 1); err = dev->hard_header(skb, dev, ETH_P_IPV6, ha, NULL, skb->len); if (err < 0) { kfree_skb(skb); @@ -1459,15 +1459,14 @@ static inline int mld_dev_queue_xmit(struct sk_buff *skb) static void mld_sendpack(struct sk_buff *skb) { - struct ipv6hdr *pip6 = skb->nh.ipv6h; + struct ipv6hdr *pip6 = ipv6_hdr(skb); struct mld2_report *pmr = (struct mld2_report *)skb->h.raw; int payload_len, mldlen; struct inet6_dev *idev = in6_dev_get(skb->dev); int err; IP6_INC_STATS(idev, IPSTATS_MIB_OUTREQUESTS); - payload_len = skb->tail - (unsigned char *)skb->nh.ipv6h - - sizeof(struct ipv6hdr); + payload_len = skb->tail - skb_network_header(skb) - sizeof(*pip6); mldlen = skb->tail - skb->h.raw; pip6->payload_len = htons(payload_len); diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c index bb4033553f3b..7b5f9d82e801 100644 --- a/net/ipv6/mip6.c +++ b/net/ipv6/mip6.c @@ -129,7 +129,7 @@ static struct mip6_report_rate_limiter mip6_report_rl = { static int mip6_destopt_input(struct xfrm_state *x, struct sk_buff *skb) { - struct ipv6hdr *iph = skb->nh.ipv6h; + struct ipv6hdr *iph = ipv6_hdr(skb); struct ipv6_destopt_hdr *destopt = (struct ipv6_destopt_hdr *)skb->data; if (!ipv6_addr_equal(&iph->saddr, (struct in6_addr *)x->coaddr) && @@ -223,16 +223,16 @@ static int mip6_destopt_reject(struct xfrm_state *x, struct sk_buff *skb, struct skb_get_timestamp(skb, &stamp); - if (!mip6_report_rl_allow(&stamp, &skb->nh.ipv6h->daddr, - hao ? &hao->addr : &skb->nh.ipv6h->saddr, + if (!mip6_report_rl_allow(&stamp, &ipv6_hdr(skb)->daddr, + hao ? &hao->addr : &ipv6_hdr(skb)->saddr, opt->iif)) goto out; memset(&sel, 0, sizeof(sel)); - memcpy(&sel.daddr, (xfrm_address_t *)&skb->nh.ipv6h->daddr, + memcpy(&sel.daddr, (xfrm_address_t *)&ipv6_hdr(skb)->daddr, sizeof(sel.daddr)); sel.prefixlen_d = 128; - memcpy(&sel.saddr, (xfrm_address_t *)&skb->nh.ipv6h->saddr, + memcpy(&sel.saddr, (xfrm_address_t *)&ipv6_hdr(skb)->saddr, sizeof(sel.saddr)); sel.prefixlen_s = 128; sel.family = AF_INET6; @@ -256,12 +256,13 @@ static int mip6_destopt_offset(struct xfrm_state *x, struct sk_buff *skb, u8 **nexthdr) { u16 offset = sizeof(struct ipv6hdr); - struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1); + struct ipv6_opt_hdr *exthdr = + (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1); const unsigned char *nh = skb_network_header(skb); unsigned int packet_len = skb->tail - nh; int found_rhdr = 0; - *nexthdr = &skb->nh.ipv6h->nexthdr; + *nexthdr = &ipv6_hdr(skb)->nexthdr; while (offset + 1 <= packet_len) { @@ -387,12 +388,13 @@ static int mip6_rthdr_offset(struct xfrm_state *x, struct sk_buff *skb, u8 **nexthdr) { u16 offset = sizeof(struct ipv6hdr); - struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1); + struct ipv6_opt_hdr *exthdr = + (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1); const unsigned char *nh = skb_network_header(skb); unsigned int packet_len = skb->tail - nh; int found_rhdr = 0; - *nexthdr = &skb->nh.ipv6h->nexthdr; + *nexthdr = &ipv6_hdr(skb)->nexthdr; while (offset + 1 <= packet_len) { diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index a3e3d9e2f44b..00feb4c4d98b 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -598,7 +598,7 @@ void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh, dev->addr_len, dev->type); /* checksum */ - msg->icmph.icmp6_cksum = csum_ipv6_magic(&skb->nh.ipv6h->saddr, + msg->icmph.icmp6_cksum = csum_ipv6_magic(&ipv6_hdr(skb)->saddr, daddr, len, IPPROTO_ICMPV6, csum_partial((__u8 *) msg, @@ -697,7 +697,7 @@ void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr, dev->addr_len, dev->type); /* checksum */ - hdr->icmp6_cksum = csum_ipv6_magic(&skb->nh.ipv6h->saddr, daddr, len, + hdr->icmp6_cksum = csum_ipv6_magic(&ipv6_hdr(skb)->saddr, daddr, len, IPPROTO_ICMPV6, csum_partial((__u8 *) hdr, len, 0)); @@ -736,8 +736,8 @@ static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb) struct in6_addr *target = (struct in6_addr *)&neigh->primary_key; int probes = atomic_read(&neigh->probes); - if (skb && ipv6_chk_addr(&skb->nh.ipv6h->saddr, dev, 1)) - saddr = &skb->nh.ipv6h->saddr; + if (skb && ipv6_chk_addr(&ipv6_hdr(skb)->saddr, dev, 1)) + saddr = &ipv6_hdr(skb)->saddr; if ((probes -= neigh->parms->ucast_probes) < 0) { if (!(neigh->nud_state & NUD_VALID)) { @@ -761,8 +761,8 @@ static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb) static void ndisc_recv_ns(struct sk_buff *skb) { struct nd_msg *msg = (struct nd_msg *)skb->h.raw; - struct in6_addr *saddr = &skb->nh.ipv6h->saddr; - struct in6_addr *daddr = &skb->nh.ipv6h->daddr; + struct in6_addr *saddr = &ipv6_hdr(skb)->saddr; + struct in6_addr *daddr = &ipv6_hdr(skb)->daddr; u8 *lladdr = NULL; u32 ndoptlen = skb->tail - msg->opt; struct ndisc_options ndopts; @@ -939,8 +939,8 @@ out: static void ndisc_recv_na(struct sk_buff *skb) { struct nd_msg *msg = (struct nd_msg *)skb->h.raw; - struct in6_addr *saddr = &skb->nh.ipv6h->saddr; - struct in6_addr *daddr = &skb->nh.ipv6h->daddr; + struct in6_addr *saddr = &ipv6_hdr(skb)->saddr; + struct in6_addr *daddr = &ipv6_hdr(skb)->daddr; u8 *lladdr = NULL; u32 ndoptlen = skb->tail - msg->opt; struct ndisc_options ndopts; @@ -1044,7 +1044,7 @@ static void ndisc_recv_rs(struct sk_buff *skb) unsigned long ndoptlen = skb->len - sizeof(*rs_msg); struct neighbour *neigh; struct inet6_dev *idev; - struct in6_addr *saddr = &skb->nh.ipv6h->saddr; + struct in6_addr *saddr = &ipv6_hdr(skb)->saddr; struct ndisc_options ndopts; u8 *lladdr = NULL; @@ -1110,7 +1110,7 @@ static void ndisc_router_discovery(struct sk_buff *skb) optlen = (skb->tail - skb->h.raw) - sizeof(struct ra_msg); - if (!(ipv6_addr_type(&skb->nh.ipv6h->saddr) & IPV6_ADDR_LINKLOCAL)) { + if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)) { ND_PRINTK2(KERN_WARNING "ICMPv6 RA: source address is not link-local.\n"); return; @@ -1176,7 +1176,7 @@ static void ndisc_router_discovery(struct sk_buff *skb) pref = ICMPV6_ROUTER_PREF_MEDIUM; #endif - rt = rt6_get_dflt_router(&skb->nh.ipv6h->saddr, skb->dev); + rt = rt6_get_dflt_router(&ipv6_hdr(skb)->saddr, skb->dev); if (rt) neigh = rt->rt6i_nexthop; @@ -1191,7 +1191,7 @@ static void ndisc_router_discovery(struct sk_buff *skb) ND_PRINTK3(KERN_DEBUG "ICMPv6 RA: adding default router.\n"); - rt = rt6_add_dflt_router(&skb->nh.ipv6h->saddr, skb->dev, pref); + rt = rt6_add_dflt_router(&ipv6_hdr(skb)->saddr, skb->dev, pref); if (rt == NULL) { ND_PRINTK0(KERN_ERR "ICMPv6 RA: %s() failed to add default route.\n", @@ -1263,7 +1263,7 @@ skip_defrtr: */ if (!neigh) - neigh = __neigh_lookup(&nd_tbl, &skb->nh.ipv6h->saddr, + neigh = __neigh_lookup(&nd_tbl, &ipv6_hdr(skb)->saddr, skb->dev, 1); if (neigh) { u8 *lladdr = NULL; @@ -1292,7 +1292,7 @@ skip_defrtr: if (((struct route_info *)p)->prefix_len > in6_dev->cnf.accept_ra_rt_info_max_plen) continue; rt6_route_rcv(skb->dev, (u8*)p, (p->nd_opt_len) << 3, - &skb->nh.ipv6h->saddr); + &ipv6_hdr(skb)->saddr); } } #endif @@ -1351,7 +1351,7 @@ static void ndisc_redirect_rcv(struct sk_buff *skb) int optlen; u8 *lladdr = NULL; - if (!(ipv6_addr_type(&skb->nh.ipv6h->saddr) & IPV6_ADDR_LINKLOCAL)) { + if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)) { ND_PRINTK2(KERN_WARNING "ICMPv6 Redirect: source address is not link-local.\n"); return; @@ -1416,8 +1416,8 @@ static void ndisc_redirect_rcv(struct sk_buff *skb) neigh = __neigh_lookup(&nd_tbl, target, skb->dev, 1); if (neigh) { - rt6_redirect(dest, &skb->nh.ipv6h->daddr, - &skb->nh.ipv6h->saddr, neigh, lladdr, + rt6_redirect(dest, &ipv6_hdr(skb)->daddr, + &ipv6_hdr(skb)->saddr, neigh, lladdr, on_link); neigh_release(neigh); } @@ -1453,14 +1453,14 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh, return; } - if (!ipv6_addr_equal(&skb->nh.ipv6h->daddr, target) && + if (!ipv6_addr_equal(&ipv6_hdr(skb)->daddr, target) && !(ipv6_addr_type(target) & IPV6_ADDR_LINKLOCAL)) { ND_PRINTK2(KERN_WARNING "ICMPv6 Redirect: target address is not link-local.\n"); return; } - ndisc_flow_init(&fl, NDISC_REDIRECT, &saddr_buf, &skb->nh.ipv6h->saddr, + ndisc_flow_init(&fl, NDISC_REDIRECT, &saddr_buf, &ipv6_hdr(skb)->saddr, dev->ifindex); dst = ip6_route_output(NULL, &fl); @@ -1515,7 +1515,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh, hlen = 0; skb_reserve(buff, LL_RESERVED_SPACE(dev)); - ip6_nd_hdr(sk, buff, dev, &saddr_buf, &skb->nh.ipv6h->saddr, + ip6_nd_hdr(sk, buff, dev, &saddr_buf, &ipv6_hdr(skb)->saddr, IPPROTO_ICMPV6, len); icmph = (struct icmp6hdr *)skb_put(buff, len); @@ -1531,7 +1531,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh, addrp = (struct in6_addr *)(icmph + 1); ipv6_addr_copy(addrp, target); addrp++; - ipv6_addr_copy(addrp, &skb->nh.ipv6h->daddr); + ipv6_addr_copy(addrp, &ipv6_hdr(skb)->daddr); opt = (u8*) (addrp + 1); @@ -1552,9 +1552,9 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh, *(opt++) = (rd_len >> 3); opt += 6; - memcpy(opt, skb->nh.ipv6h, rd_len - 8); + memcpy(opt, ipv6_hdr(skb), rd_len - 8); - icmph->icmp6_cksum = csum_ipv6_magic(&saddr_buf, &skb->nh.ipv6h->saddr, + icmph->icmp6_cksum = csum_ipv6_magic(&saddr_buf, &ipv6_hdr(skb)->saddr, len, IPPROTO_ICMPV6, csum_partial((u8 *) icmph, len, 0)); @@ -1588,10 +1588,10 @@ int ndisc_rcv(struct sk_buff *skb) __skb_push(skb, skb->data-skb->h.raw); - if (skb->nh.ipv6h->hop_limit != 255) { + if (ipv6_hdr(skb)->hop_limit != 255) { ND_PRINTK2(KERN_WARNING "ICMPv6 NDISC: invalid hop-limit: %d\n", - skb->nh.ipv6h->hop_limit); + ipv6_hdr(skb)->hop_limit); return 0; } diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c index 1c405dd30c67..38b149613915 100644 --- a/net/ipv6/netfilter.c +++ b/net/ipv6/netfilter.c @@ -11,7 +11,7 @@ int ip6_route_me_harder(struct sk_buff *skb) { - struct ipv6hdr *iph = skb->nh.ipv6h; + struct ipv6hdr *iph = ipv6_hdr(skb); struct dst_entry *dst; struct flowi fl = { .oif = skb->sk ? skb->sk->sk_bound_dev_if : 0, @@ -61,7 +61,7 @@ static void nf_ip6_saveroute(const struct sk_buff *skb, struct nf_info *info) struct ip6_rt_info *rt_info = nf_info_reroute(info); if (info->hook == NF_IP6_LOCAL_OUT) { - struct ipv6hdr *iph = skb->nh.ipv6h; + struct ipv6hdr *iph = ipv6_hdr(skb); rt_info->daddr = iph->daddr; rt_info->saddr = iph->saddr; @@ -73,7 +73,7 @@ static int nf_ip6_reroute(struct sk_buff **pskb, const struct nf_info *info) struct ip6_rt_info *rt_info = nf_info_reroute(info); if (info->hook == NF_IP6_LOCAL_OUT) { - struct ipv6hdr *iph = (*pskb)->nh.ipv6h; + struct ipv6hdr *iph = ipv6_hdr(*pskb); if (!ipv6_addr_equal(&iph->daddr, &rt_info->daddr) || !ipv6_addr_equal(&iph->saddr, &rt_info->saddr)) return ip6_route_me_harder(*pskb); @@ -84,7 +84,7 @@ static int nf_ip6_reroute(struct sk_buff **pskb, const struct nf_info *info) __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook, unsigned int dataoff, u_int8_t protocol) { - struct ipv6hdr *ip6h = skb->nh.ipv6h; + struct ipv6hdr *ip6h = ipv6_hdr(skb); __sum16 csum = 0; switch (skb->ip_summed) { diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index 7c512e13f956..caf9e375a0f1 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -115,7 +115,7 @@ ip6_packet_match(const struct sk_buff *skb, { size_t i; unsigned long ret; - const struct ipv6hdr *ipv6 = skb->nh.ipv6h; + const struct ipv6hdr *ipv6 = ipv6_hdr(skb); #define FWINV(bool,invflg) ((bool) ^ !!(ip6info->invflags & invflg)) @@ -301,7 +301,7 @@ ip6t_do_table(struct sk_buff **pskb, goto no_match; ADD_COUNTER(e->counters, - ntohs((*pskb)->nh.ipv6h->payload_len) + ntohs(ipv6_hdr(*pskb)->payload_len) + IPV6_HDR_LEN, 1); @@ -1448,8 +1448,8 @@ static void __exit ip6_tables_fini(void) int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset, int target, unsigned short *fragoff) { - unsigned int start = (u8*)(skb->nh.ipv6h + 1) - skb->data; - u8 nexthdr = skb->nh.ipv6h->nexthdr; + unsigned int start = (u8 *)(ipv6_hdr(skb) + 1) - skb->data; + u8 nexthdr = ipv6_hdr(skb)->nexthdr; unsigned int len = skb->len - start; if (fragoff) diff --git a/net/ipv6/netfilter/ip6t_HL.c b/net/ipv6/netfilter/ip6t_HL.c index ccbab66277e3..4115a576ba25 100644 --- a/net/ipv6/netfilter/ip6t_HL.c +++ b/net/ipv6/netfilter/ip6t_HL.c @@ -32,7 +32,7 @@ static unsigned int ip6t_hl_target(struct sk_buff **pskb, if (!skb_make_writable(pskb, (*pskb)->len)) return NF_DROP; - ip6h = (*pskb)->nh.ipv6h; + ip6h = ipv6_hdr(*pskb); switch (info->mode) { case IP6T_HL_SET: diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c index fc9e51a77784..54d176187f3f 100644 --- a/net/ipv6/netfilter/ip6t_LOG.c +++ b/net/ipv6/netfilter/ip6t_LOG.c @@ -422,7 +422,7 @@ ip6t_log_packet(unsigned int pf, printk(" "); } - dump_packet(loginfo, skb, (u8*)skb->nh.ipv6h - skb->data, 1); + dump_packet(loginfo, skb, skb_network_offset(skb), 1); printk("\n"); spin_unlock_bh(&log_lock); } diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c index 4441bed430f8..cb3d2415a064 100644 --- a/net/ipv6/netfilter/ip6t_REJECT.c +++ b/net/ipv6/netfilter/ip6t_REJECT.c @@ -47,7 +47,7 @@ static void send_reset(struct sk_buff *oldskb) struct tcphdr otcph, *tcph; unsigned int otcplen, hh_len; int tcphoff, needs_ack; - struct ipv6hdr *oip6h = oldskb->nh.ipv6h, *ip6h; + struct ipv6hdr *oip6h = ipv6_hdr(oldskb), *ip6h; struct dst_entry *dst = NULL; u8 proto; struct flowi fl; @@ -122,7 +122,7 @@ static void send_reset(struct sk_buff *oldskb) skb_put(nskb, sizeof(struct ipv6hdr)); skb_reset_network_header(nskb); - ip6h = nskb->nh.ipv6h; + ip6h = ipv6_hdr(nskb); ip6h->version = 6; ip6h->hop_limit = dst_metric(dst, RTAX_HOPLIMIT); ip6h->nexthdr = IPPROTO_TCP; @@ -156,8 +156,8 @@ static void send_reset(struct sk_buff *oldskb) tcph->check = 0; /* Adjust TCP checksum */ - tcph->check = csum_ipv6_magic(&nskb->nh.ipv6h->saddr, - &nskb->nh.ipv6h->daddr, + tcph->check = csum_ipv6_magic(&ipv6_hdr(nskb)->saddr, + &ipv6_hdr(nskb)->daddr, sizeof(struct tcphdr), IPPROTO_TCP, csum_partial((char *)tcph, sizeof(struct tcphdr), 0)); diff --git a/net/ipv6/netfilter/ip6t_eui64.c b/net/ipv6/netfilter/ip6t_eui64.c index c2676066a80f..0f3dd932f0a6 100644 --- a/net/ipv6/netfilter/ip6t_eui64.c +++ b/net/ipv6/netfilter/ip6t_eui64.c @@ -42,7 +42,7 @@ match(const struct sk_buff *skb, memset(eui64, 0, sizeof(eui64)); if (eth_hdr(skb)->h_proto == htons(ETH_P_IPV6)) { - if (skb->nh.ipv6h->version == 0x6) { + if (ipv6_hdr(skb)->version == 0x6) { memcpy(eui64, eth_hdr(skb)->h_source, 3); memcpy(eui64 + 5, eth_hdr(skb)->h_source + 3, 3); eui64[3] = 0xff; @@ -50,7 +50,7 @@ match(const struct sk_buff *skb, eui64[0] |= 0x02; i = 0; - while ((skb->nh.ipv6h->saddr.s6_addr[8+i] == eui64[i]) + while ((ipv6_hdr(skb)->saddr.s6_addr[8 + i] == eui64[i]) && (i < 8)) i++; diff --git a/net/ipv6/netfilter/ip6t_hl.c b/net/ipv6/netfilter/ip6t_hl.c index 37c8a4d4ed78..d606c0e6d6fd 100644 --- a/net/ipv6/netfilter/ip6t_hl.c +++ b/net/ipv6/netfilter/ip6t_hl.c @@ -25,7 +25,7 @@ static int match(const struct sk_buff *skb, int offset, unsigned int protoff, int *hotdrop) { const struct ip6t_hl_info *info = matchinfo; - const struct ipv6hdr *ip6h = skb->nh.ipv6h; + const struct ipv6hdr *ip6h = ipv6_hdr(skb); switch (info->mode) { case IP6T_HL_EQ: diff --git a/net/ipv6/netfilter/ip6t_ipv6header.c b/net/ipv6/netfilter/ip6t_ipv6header.c index 700a11d25deb..fd6a0869099b 100644 --- a/net/ipv6/netfilter/ip6t_ipv6header.c +++ b/net/ipv6/netfilter/ip6t_ipv6header.c @@ -45,7 +45,7 @@ ipv6header_match(const struct sk_buff *skb, /* Make sure this isn't an evil packet */ /* type of the 1st exthdr */ - nexthdr = skb->nh.ipv6h->nexthdr; + nexthdr = ipv6_hdr(skb)->nexthdr; /* pointer to the 1st exthdr */ ptr = sizeof(struct ipv6hdr); /* available length */ diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c index da2c1994539b..85b1c272946c 100644 --- a/net/ipv6/netfilter/ip6table_mangle.c +++ b/net/ipv6/netfilter/ip6table_mangle.c @@ -146,21 +146,21 @@ ip6t_local_hook(unsigned int hook, #endif /* save source/dest address, mark, hoplimit, flowlabel, priority, */ - memcpy(&saddr, &(*pskb)->nh.ipv6h->saddr, sizeof(saddr)); - memcpy(&daddr, &(*pskb)->nh.ipv6h->daddr, sizeof(daddr)); + memcpy(&saddr, &ipv6_hdr(*pskb)->saddr, sizeof(saddr)); + memcpy(&daddr, &ipv6_hdr(*pskb)->daddr, sizeof(daddr)); mark = (*pskb)->mark; - hop_limit = (*pskb)->nh.ipv6h->hop_limit; + hop_limit = ipv6_hdr(*pskb)->hop_limit; /* flowlabel and prio (includes version, which shouldn't change either */ - flowlabel = *((u_int32_t *) (*pskb)->nh.ipv6h); + flowlabel = *((u_int32_t *)ipv6_hdr(*pskb)); ret = ip6t_do_table(pskb, hook, in, out, &packet_mangler); if (ret != NF_DROP && ret != NF_STOLEN - && (memcmp(&(*pskb)->nh.ipv6h->saddr, &saddr, sizeof(saddr)) - || memcmp(&(*pskb)->nh.ipv6h->daddr, &daddr, sizeof(daddr)) + && (memcmp(&ipv6_hdr(*pskb)->saddr, &saddr, sizeof(saddr)) + || memcmp(&ipv6_hdr(*pskb)->daddr, &daddr, sizeof(daddr)) || (*pskb)->mark != mark - || (*pskb)->nh.ipv6h->hop_limit != hop_limit)) + || ipv6_hdr(*pskb)->hop_limit != hop_limit)) return ip6_route_me_harder(*pskb) == 0 ? ret : NF_DROP; return ret; diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c index d1102455668d..fe7f46c4dbff 100644 --- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c +++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c @@ -138,16 +138,10 @@ static int ipv6_prepare(struct sk_buff **pskb, unsigned int hooknum, unsigned int *dataoff, u_int8_t *protonum) { - unsigned int extoff; - unsigned char pnum; - int protoff; - - extoff = (u8*)((*pskb)->nh.ipv6h + 1) - (*pskb)->data; - pnum = (*pskb)->nh.ipv6h->nexthdr; - - protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum, - (*pskb)->len - extoff); - + unsigned int extoff = (u8 *)(ipv6_hdr(*pskb) + 1) - (*pskb)->data; + unsigned char pnum = ipv6_hdr(*pskb)->nexthdr; + int protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum, + (*pskb)->len - extoff); /* * (protoff == (*pskb)->len) mean that the packet doesn't have no data * except of IPv6 & ext headers. but it's tracked anyway. - YK @@ -179,9 +173,8 @@ static unsigned int ipv6_confirm(unsigned int hooknum, struct nf_conn_help *help; enum ip_conntrack_info ctinfo; unsigned int ret, protoff; - unsigned int extoff = (u8*)((*pskb)->nh.ipv6h + 1) - - (*pskb)->data; - unsigned char pnum = (*pskb)->nh.ipv6h->nexthdr; + unsigned int extoff = (u8 *)(ipv6_hdr(*pskb) + 1) - (*pskb)->data; + unsigned char pnum = ipv6_hdr(*pskb)->nexthdr; /* This is where we call the helper: as the packet goes out. */ diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index bc1d09584008..d3fbb1f1caf5 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -400,8 +400,8 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb, } offset = ntohs(fhdr->frag_off) & ~0x7; - end = offset + (ntohs(skb->nh.ipv6h->payload_len) - - ((u8 *) (fhdr + 1) - (u8 *) (skb->nh.ipv6h + 1))); + end = offset + (ntohs(ipv6_hdr(skb)->payload_len) - + ((u8 *)(fhdr + 1) - (u8 *)(ipv6_hdr(skb) + 1))); if ((unsigned int)end > IPV6_MAXPLEN) { DEBUGP("offset is too large.\n"); @@ -652,7 +652,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev) head->next = NULL; head->dev = dev; head->tstamp = fq->stamp; - head->nh.ipv6h->payload_len = htons(payload_len); + ipv6_hdr(head)->payload_len = htons(payload_len); /* Yes, and fold redundant checksum back. 8) */ if (head->ip_summed == CHECKSUM_COMPLETE) @@ -706,9 +706,9 @@ out_fail: static int find_prev_fhdr(struct sk_buff *skb, u8 *prevhdrp, int *prevhoff, int *fhoff) { - u8 nexthdr = skb->nh.ipv6h->nexthdr; - u8 prev_nhoff = (u8 *)&skb->nh.ipv6h->nexthdr - skb->data; - int start = (u8 *)(skb->nh.ipv6h+1) - skb->data; + u8 nexthdr = ipv6_hdr(skb)->nexthdr; + u8 prev_nhoff = (u8 *)&ipv6_hdr(skb)->nexthdr - skb->data; + int start = (u8 *)(ipv6_hdr(skb) + 1) - skb->data; int len = skb->len - start; u8 prevhdr = NEXTHDR_IPV6; @@ -764,7 +764,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb) struct sk_buff *ret_skb = NULL; /* Jumbo payload inhibits frag. header */ - if (skb->nh.ipv6h->payload_len == 0) { + if (ipv6_hdr(skb)->payload_len == 0) { DEBUGP("payload len = 0\n"); return skb; } @@ -786,7 +786,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb) } clone->h.raw = clone->data + fhoff; - hdr = clone->nh.ipv6h; + hdr = ipv6_hdr(clone); fhdr = (struct frag_hdr *)clone->h.raw; if (!(fhdr->frag_off & htons(0xFFF9))) { diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 9b2bcde73f19..0e2b56ce0a56 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -152,7 +152,7 @@ int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr) int delivered = 0; __u8 hash; - saddr = &skb->nh.ipv6h->saddr; + saddr = &ipv6_hdr(skb)->saddr; daddr = saddr + 1; hash = nexthdr & (MAX_INET_PROTOS - 1); @@ -363,15 +363,16 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb) if (skb->ip_summed == CHECKSUM_COMPLETE) { skb_postpull_rcsum(skb, skb_network_header(skb), skb->h.raw - skb->nh.raw); - if (!csum_ipv6_magic(&skb->nh.ipv6h->saddr, - &skb->nh.ipv6h->daddr, + if (!csum_ipv6_magic(&ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, skb->len, inet->num, skb->csum)) skb->ip_summed = CHECKSUM_UNNECESSARY; } if (skb->ip_summed != CHECKSUM_UNNECESSARY) - skb->csum = ~csum_unfold(csum_ipv6_magic(&skb->nh.ipv6h->saddr, - &skb->nh.ipv6h->daddr, - skb->len, inet->num, 0)); + skb->csum = ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, + skb->len, + inet->num, 0)); if (inet->hdrincl) { if (skb_checksum_complete(skb)) { @@ -438,7 +439,7 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk, if (sin6) { sin6->sin6_family = AF_INET6; sin6->sin6_port = 0; - ipv6_addr_copy(&sin6->sin6_addr, &skb->nh.ipv6h->saddr); + ipv6_addr_copy(&sin6->sin6_addr, &ipv6_hdr(skb)->saddr); sin6->sin6_flowinfo = 0; sin6->sin6_scope_id = 0; if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) @@ -578,7 +579,7 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length, skb_put(skb, length); skb_reset_network_header(skb); - iph = skb->nh.ipv6h; + iph = ipv6_hdr(skb); skb->ip_summed = CHECKSUM_NONE; diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index f85e49acb91a..156a37fe3ff3 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -430,8 +430,8 @@ static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb, goto err; offset = ntohs(fhdr->frag_off) & ~0x7; - end = offset + (ntohs(skb->nh.ipv6h->payload_len) - - ((u8 *) (fhdr + 1) - (u8 *) (skb->nh.ipv6h + 1))); + end = offset + (ntohs(ipv6_hdr(skb)->payload_len) - + ((u8 *)(fhdr + 1) - (u8 *)(ipv6_hdr(skb) + 1))); if ((unsigned int)end > IPV6_MAXPLEN) { IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), @@ -671,7 +671,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in, head->next = NULL; head->dev = dev; head->tstamp = fq->stamp; - head->nh.ipv6h->payload_len = htons(payload_len); + ipv6_hdr(head)->payload_len = htons(payload_len); IP6CB(head)->nhoff = nhoff; *skb_in = head; @@ -708,9 +708,7 @@ static int ipv6_frag_rcv(struct sk_buff **skbp) struct net_device *dev = skb->dev; struct frag_hdr *fhdr; struct frag_queue *fq; - struct ipv6hdr *hdr; - - hdr = skb->nh.ipv6h; + struct ipv6hdr *hdr = ipv6_hdr(skb); IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMREQDS); @@ -726,7 +724,7 @@ static int ipv6_frag_rcv(struct sk_buff **skbp) return -1; } - hdr = skb->nh.ipv6h; + hdr = ipv6_hdr(skb); fhdr = (struct frag_hdr *)skb->h.raw; if (!(fhdr->frag_off & htons(0xFFF9))) { diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 0aa4762f53f7..52cbe1cd4045 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -726,7 +726,7 @@ out2: void ip6_route_input(struct sk_buff *skb) { - struct ipv6hdr *iph = skb->nh.ipv6h; + struct ipv6hdr *iph = ipv6_hdr(skb); int flags = RT6_LOOKUP_F_HAS_SADDR; struct flowi fl = { .iif = skb->dev->ifindex, @@ -1775,7 +1775,7 @@ static inline int ip6_pkt_drop(struct sk_buff *skb, int code, int type; switch (ipstats_mib_noroutes) { case IPSTATS_MIB_INNOROUTES: - type = ipv6_addr_type(&skb->nh.ipv6h->daddr); + type = ipv6_addr_type(&ipv6_hdr(skb)->daddr); if (type == IPV6_ADDR_ANY || type == IPV6_ADDR_RESERVED) { IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INADDRERRORS); break; diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index e33ac3c3a9ca..18ec86f177d9 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -366,7 +366,7 @@ out: static inline void ipip6_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb) { if (INET_ECN_is_ce(iph->tos)) - IP6_ECN_set_ce(skb->nh.ipv6h); + IP6_ECN_set_ce(ipv6_hdr(skb)); } static int ipip6_rcv(struct sk_buff *skb) @@ -430,7 +430,7 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) struct ip_tunnel *tunnel = netdev_priv(dev); struct net_device_stats *stats = &tunnel->stat; struct iphdr *tiph = &tunnel->parms.iph; - struct ipv6hdr *iph6 = skb->nh.ipv6h; + struct ipv6hdr *iph6 = ipv6_hdr(skb); u8 tos = tunnel->parms.iph.tos; struct rtable *rt; /* Route to the other host */ struct net_device *tdev; /* Device to other host */ @@ -468,7 +468,7 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) addr_type = ipv6_addr_type(addr6); if (addr_type == IPV6_ADDR_ANY) { - addr6 = &skb->nh.ipv6h->daddr; + addr6 = &ipv6_hdr(skb)->daddr; addr_type = ipv6_addr_type(addr6); } @@ -550,7 +550,7 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) skb_set_owner_w(new_skb, skb->sk); dev_kfree_skb(skb); skb = new_skb; - iph6 = skb->nh.ipv6h; + iph6 = ipv6_hdr(skb); } skb->h.raw = skb->nh.raw; diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 80a52ab1e384..85b3e89110f9 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -115,8 +115,8 @@ static __inline__ __sum16 tcp_v6_check(struct tcphdr *th, int len, static __u32 tcp_v6_init_sequence(struct sk_buff *skb) { - return secure_tcpv6_sequence_number(skb->nh.ipv6h->daddr.s6_addr32, - skb->nh.ipv6h->saddr.s6_addr32, + return secure_tcpv6_sequence_number(ipv6_hdr(skb)->daddr.s6_addr32, + ipv6_hdr(skb)->saddr.s6_addr32, skb->h.th->dest, skb->h.th->source); } @@ -837,7 +837,7 @@ static int tcp_v6_inbound_md5_hash (struct sock *sk, struct sk_buff *skb) { __u8 *hash_location = NULL; struct tcp_md5sig_key *hash_expected; - struct ipv6hdr *ip6h = skb->nh.ipv6h; + struct ipv6hdr *ip6h = ipv6_hdr(skb); struct tcphdr *th = skb->h.th; int length = (th->doff << 2) - sizeof (*th); int genhash; @@ -966,7 +966,7 @@ static int tcp_v6_gso_send_check(struct sk_buff *skb) if (!pskb_may_pull(skb, sizeof(*th))) return -EINVAL; - ipv6h = skb->nh.ipv6h; + ipv6h = ipv6_hdr(skb); th = skb->h.th; th->check = 0; @@ -995,7 +995,7 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb) #ifdef CONFIG_TCP_MD5SIG if (sk) - key = tcp_v6_md5_do_lookup(sk, &skb->nh.ipv6h->daddr); + key = tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr); else key = NULL; @@ -1039,20 +1039,18 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb) (TCPOPT_NOP << 16) | (TCPOPT_MD5SIG << 8) | TCPOLEN_MD5SIG); - tcp_v6_do_calc_md5_hash((__u8*)&opt[1], - key, - &skb->nh.ipv6h->daddr, - &skb->nh.ipv6h->saddr, - t1, IPPROTO_TCP, - tot_len); + tcp_v6_do_calc_md5_hash((__u8 *)&opt[1], key, + &ipv6_hdr(skb)->daddr, + &ipv6_hdr(skb)->saddr, + t1, IPPROTO_TCP, tot_len); } #endif buff->csum = csum_partial((char *)t1, sizeof(*t1), 0); memset(&fl, 0, sizeof(fl)); - ipv6_addr_copy(&fl.fl6_dst, &skb->nh.ipv6h->saddr); - ipv6_addr_copy(&fl.fl6_src, &skb->nh.ipv6h->daddr); + ipv6_addr_copy(&fl.fl6_dst, &ipv6_hdr(skb)->saddr); + ipv6_addr_copy(&fl.fl6_src, &ipv6_hdr(skb)->daddr); t1->check = csum_ipv6_magic(&fl.fl6_src, &fl.fl6_dst, sizeof(*t1), IPPROTO_TCP, @@ -1093,7 +1091,7 @@ static void tcp_v6_send_ack(struct tcp_timewait_sock *tw, #ifdef CONFIG_TCP_MD5SIG if (!tw && skb->sk) { - key = tcp_v6_md5_do_lookup(skb->sk, &skb->nh.ipv6h->daddr); + key = tcp_v6_md5_do_lookup(skb->sk, &ipv6_hdr(skb)->daddr); } else if (tw && tw->tw_md5_keylen) { tw_key.key = tw->tw_md5_key; tw_key.keylen = tw->tw_md5_keylen; @@ -1142,20 +1140,18 @@ static void tcp_v6_send_ack(struct tcp_timewait_sock *tw, if (key) { *topt++ = htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) | (TCPOPT_MD5SIG << 8) | TCPOLEN_MD5SIG); - tcp_v6_do_calc_md5_hash((__u8 *)topt, - key, - &skb->nh.ipv6h->daddr, - &skb->nh.ipv6h->saddr, - t1, IPPROTO_TCP, - tot_len); + tcp_v6_do_calc_md5_hash((__u8 *)topt, key, + &ipv6_hdr(skb)->daddr, + &ipv6_hdr(skb)->saddr, + t1, IPPROTO_TCP, tot_len); } #endif buff->csum = csum_partial((char *)t1, tot_len, 0); memset(&fl, 0, sizeof(fl)); - ipv6_addr_copy(&fl.fl6_dst, &skb->nh.ipv6h->saddr); - ipv6_addr_copy(&fl.fl6_src, &skb->nh.ipv6h->daddr); + ipv6_addr_copy(&fl.fl6_dst, &ipv6_hdr(skb)->saddr); + ipv6_addr_copy(&fl.fl6_src, &ipv6_hdr(skb)->daddr); t1->check = csum_ipv6_magic(&fl.fl6_src, &fl.fl6_dst, tot_len, IPPROTO_TCP, @@ -1204,13 +1200,13 @@ static struct sock *tcp_v6_hnd_req(struct sock *sk,struct sk_buff *skb) /* Find possible connection requests. */ req = inet6_csk_search_req(sk, &prev, th->source, - &skb->nh.ipv6h->saddr, - &skb->nh.ipv6h->daddr, inet6_iif(skb)); + &ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, inet6_iif(skb)); if (req) return tcp_check_req(sk, skb, req, prev); - nsk = __inet6_lookup_established(&tcp_hashinfo, &skb->nh.ipv6h->saddr, - th->source, &skb->nh.ipv6h->daddr, + nsk = __inet6_lookup_established(&tcp_hashinfo, &ipv6_hdr(skb)->saddr, + th->source, &ipv6_hdr(skb)->daddr, ntohs(th->dest), inet6_iif(skb)); if (nsk) { @@ -1277,8 +1273,8 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb) tcp_openreq_init(req, &tmp_opt, skb); treq = inet6_rsk(req); - ipv6_addr_copy(&treq->rmt_addr, &skb->nh.ipv6h->saddr); - ipv6_addr_copy(&treq->loc_addr, &skb->nh.ipv6h->daddr); + ipv6_addr_copy(&treq->rmt_addr, &ipv6_hdr(skb)->saddr); + ipv6_addr_copy(&treq->loc_addr, &ipv6_hdr(skb)->daddr); TCP_ECN_create_request(req, skb->h.th); treq->pktopts = NULL; if (ipv6_opt_accepted(sk, skb) || @@ -1365,7 +1361,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, newnp->pktoptions = NULL; newnp->opt = NULL; newnp->mcast_oif = inet6_iif(skb); - newnp->mcast_hops = skb->nh.ipv6h->hop_limit; + newnp->mcast_hops = ipv6_hdr(skb)->hop_limit; /* * No need to charge this sock to the relevant IPv6 refcnt debug socks count @@ -1473,7 +1469,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, } newnp->opt = NULL; newnp->mcast_oif = inet6_iif(skb); - newnp->mcast_hops = skb->nh.ipv6h->hop_limit; + newnp->mcast_hops = ipv6_hdr(skb)->hop_limit; /* Clone native IPv6 options from listening socket (if any) @@ -1532,15 +1528,16 @@ out: static __sum16 tcp_v6_checksum_init(struct sk_buff *skb) { if (skb->ip_summed == CHECKSUM_COMPLETE) { - if (!tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr, - &skb->nh.ipv6h->daddr,skb->csum)) { + if (!tcp_v6_check(skb->h.th, skb->len, &ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, skb->csum)) { skb->ip_summed = CHECKSUM_UNNECESSARY; return 0; } } - skb->csum = ~csum_unfold(tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr, - &skb->nh.ipv6h->daddr, 0)); + skb->csum = ~csum_unfold(tcp_v6_check(skb->h.th, skb->len, + &ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, 0)); if (skb->len <= 76) { return __skb_checksum_complete(skb); @@ -1668,7 +1665,7 @@ ipv6_pktoptions: if (np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo) np->mcast_oif = inet6_iif(opt_skb); if (np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim) - np->mcast_hops = opt_skb->nh.ipv6h->hop_limit; + np->mcast_hops = ipv6_hdr(opt_skb)->hop_limit; if (ipv6_opt_accepted(sk, opt_skb)) { skb_set_owner_r(opt_skb, sk); opt_skb = xchg(&np->pktoptions, opt_skb); @@ -1718,11 +1715,11 @@ static int tcp_v6_rcv(struct sk_buff **pskb) skb->len - th->doff*4); TCP_SKB_CB(skb)->ack_seq = ntohl(th->ack_seq); TCP_SKB_CB(skb)->when = 0; - TCP_SKB_CB(skb)->flags = ipv6_get_dsfield(skb->nh.ipv6h); + TCP_SKB_CB(skb)->flags = ipv6_get_dsfield(ipv6_hdr(skb)); TCP_SKB_CB(skb)->sacked = 0; - sk = __inet6_lookup(&tcp_hashinfo, &skb->nh.ipv6h->saddr, th->source, - &skb->nh.ipv6h->daddr, ntohs(th->dest), + sk = __inet6_lookup(&tcp_hashinfo, &ipv6_hdr(skb)->saddr, th->source, + &ipv6_hdr(skb)->daddr, ntohs(th->dest), inet6_iif(skb)); if (!sk) @@ -1802,7 +1799,7 @@ do_time_wait: struct sock *sk2; sk2 = inet6_lookup_listener(&tcp_hashinfo, - &skb->nh.ipv6h->daddr, + &ipv6_hdr(skb)->daddr, ntohs(th->dest), inet6_iif(skb)); if (sk2 != NULL) { struct inet_timewait_sock *tw = inet_twsk(sk); diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index e991e606ab1f..55affe39b2eb 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -180,7 +180,8 @@ try_again: ipv6_addr_set(&sin6->sin6_addr, 0, 0, htonl(0xffff), ip_hdr(skb)->saddr); else { - ipv6_addr_copy(&sin6->sin6_addr, &skb->nh.ipv6h->saddr); + ipv6_addr_copy(&sin6->sin6_addr, + &ipv6_hdr(skb)->saddr); if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) sin6->sin6_scope_id = IP6CB(skb)->iif; } @@ -392,13 +393,13 @@ static inline int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh, return 1; } if (skb->ip_summed == CHECKSUM_COMPLETE && - !csum_ipv6_magic(&skb->nh.ipv6h->saddr, &skb->nh.ipv6h->daddr, + !csum_ipv6_magic(&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, skb->len, proto, skb->csum)) skb->ip_summed = CHECKSUM_UNNECESSARY; if (skb->ip_summed != CHECKSUM_UNNECESSARY) - skb->csum = ~csum_unfold(csum_ipv6_magic(&skb->nh.ipv6h->saddr, - &skb->nh.ipv6h->daddr, + skb->csum = ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, skb->len, proto, 0)); return 0; @@ -417,8 +418,8 @@ int __udp6_lib_rcv(struct sk_buff **pskb, struct hlist_head udptable[], if (!pskb_may_pull(skb, sizeof(struct udphdr))) goto short_packet; - saddr = &skb->nh.ipv6h->saddr; - daddr = &skb->nh.ipv6h->daddr; + saddr = &ipv6_hdr(skb)->saddr; + daddr = &ipv6_hdr(skb)->daddr; uh = skb->h.uh; ulen = ntohs(uh->len); @@ -438,8 +439,8 @@ int __udp6_lib_rcv(struct sk_buff **pskb, struct hlist_head udptable[], if (ulen < skb->len) { if (pskb_trim_rcsum(skb, ulen)) goto short_packet; - saddr = &skb->nh.ipv6h->saddr; - daddr = &skb->nh.ipv6h->daddr; + saddr = &ipv6_hdr(skb)->saddr; + daddr = &ipv6_hdr(skb)->daddr; uh = skb->h.uh; } } diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c index 5c929f886129..f30ef16072f6 100644 --- a/net/ipv6/xfrm6_input.c +++ b/net/ipv6/xfrm6_input.c @@ -35,7 +35,7 @@ int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi) goto drop; do { - struct ipv6hdr *iph = skb->nh.ipv6h; + struct ipv6hdr *iph = ipv6_hdr(skb); if (xfrm_nr == XFRM_MAX_DEPTH) goto drop; @@ -112,7 +112,7 @@ int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi) return -1; } else { #ifdef CONFIG_NETFILTER - skb->nh.ipv6h->payload_len = htons(skb->len); + ipv6_hdr(skb)->payload_len = htons(skb->len); __skb_push(skb, skb->data - skb_network_header(skb)); NF_HOOK(PF_INET6, NF_IP6_PRE_ROUTING, skb, skb->dev, NULL, diff --git a/net/ipv6/xfrm6_mode_beet.c b/net/ipv6/xfrm6_mode_beet.c index 247e2d5d2acf..b5a48c255f07 100644 --- a/net/ipv6/xfrm6_mode_beet.c +++ b/net/ipv6/xfrm6_mode_beet.c @@ -38,7 +38,7 @@ static int xfrm6_beet_output(struct xfrm_state *x, struct sk_buff *skb) int hdr_len; skb_push(skb, x->props.header_len); - iph = skb->nh.ipv6h; + iph = ipv6_hdr(skb); hdr_len = ip6_find_1stfragopt(skb, &prevhdr); skb->nh.raw = prevhdr - x->props.header_len; @@ -46,7 +46,7 @@ static int xfrm6_beet_output(struct xfrm_state *x, struct sk_buff *skb) memmove(skb->data, iph, hdr_len); skb_reset_network_header(skb); - top_iph = skb->nh.ipv6h; + top_iph = ipv6_hdr(skb); skb->nh.raw = &top_iph->nexthdr; skb->h.ipv6h = top_iph + 1; @@ -74,7 +74,7 @@ static int xfrm6_beet_input(struct xfrm_state *x, struct sk_buff *skb) skb_set_mac_header(skb, -skb->mac_len); memmove(skb_mac_header(skb), old_mac, skb->mac_len); - ip6h = skb->nh.ipv6h; + ip6h = ipv6_hdr(skb); ip6h->payload_len = htons(skb->len - size); ipv6_addr_copy(&ip6h->daddr, (struct in6_addr *) &x->sel.daddr.a6); ipv6_addr_copy(&ip6h->saddr, (struct in6_addr *) &x->sel.saddr.a6); diff --git a/net/ipv6/xfrm6_mode_ro.c b/net/ipv6/xfrm6_mode_ro.c index 6031c16d46ca..d01958d921ac 100644 --- a/net/ipv6/xfrm6_mode_ro.c +++ b/net/ipv6/xfrm6_mode_ro.c @@ -50,7 +50,7 @@ static int xfrm6_ro_output(struct xfrm_state *x, struct sk_buff *skb) int hdr_len; skb_push(skb, x->props.header_len); - iph = skb->nh.ipv6h; + iph = ipv6_hdr(skb); hdr_len = x->type->hdr_offset(x, skb, &prevhdr); skb->nh.raw = prevhdr - x->props.header_len; diff --git a/net/ipv6/xfrm6_mode_transport.c b/net/ipv6/xfrm6_mode_transport.c index ace0bbf4f25d..358b60d9d912 100644 --- a/net/ipv6/xfrm6_mode_transport.c +++ b/net/ipv6/xfrm6_mode_transport.c @@ -32,7 +32,7 @@ static int xfrm6_transport_output(struct xfrm_state *x, struct sk_buff *skb) int hdr_len; skb_push(skb, x->props.header_len); - iph = skb->nh.ipv6h; + iph = ipv6_hdr(skb); hdr_len = x->type->hdr_offset(x, skb, &prevhdr); skb->nh.raw = prevhdr - x->props.header_len; @@ -57,7 +57,7 @@ static int xfrm6_transport_input(struct xfrm_state *x, struct sk_buff *skb) memmove(skb->h.raw, skb_network_header(skb), ihl); skb->nh.raw = skb->h.raw; } - skb->nh.ipv6h->payload_len = htons(skb->len + ihl - + ipv6_hdr(skb)->payload_len = htons(skb->len + ihl - sizeof(struct ipv6hdr)); skb->h.raw = skb->data; return 0; diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c index 498f17b5c42f..28f36b363d1f 100644 --- a/net/ipv6/xfrm6_mode_tunnel.c +++ b/net/ipv6/xfrm6_mode_tunnel.c @@ -18,7 +18,7 @@ static inline void ipip6_ecn_decapsulate(struct sk_buff *skb) { - struct ipv6hdr *outer_iph = skb->nh.ipv6h; + struct ipv6hdr *outer_iph = ipv6_hdr(skb); struct ipv6hdr *inner_iph = skb->h.ipv6h; if (INET_ECN_is_ce(ipv6_get_dsfield(outer_iph))) @@ -27,7 +27,7 @@ static inline void ipip6_ecn_decapsulate(struct sk_buff *skb) static inline void ip6ip_ecn_decapsulate(struct sk_buff *skb) { - if (INET_ECN_is_ce(ipv6_get_dsfield(skb->nh.ipv6h))) + if (INET_ECN_is_ce(ipv6_get_dsfield(ipv6_hdr(skb)))) IP_ECN_set_ce(skb->h.ipiph); } @@ -51,10 +51,10 @@ static int xfrm6_tunnel_output(struct xfrm_state *x, struct sk_buff *skb) int dsfield; skb_push(skb, x->props.header_len); - iph = skb->nh.ipv6h; + iph = ipv6_hdr(skb); skb_reset_network_header(skb); - top_iph = skb->nh.ipv6h; + top_iph = ipv6_hdr(skb); skb->nh.raw = &top_iph->nexthdr; skb->h.ipv6h = top_iph + 1; @@ -102,7 +102,7 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb) nh = skb_network_header(skb); if (nh[IP6CB(skb)->nhoff] == IPPROTO_IPV6) { if (x->props.flags & XFRM_STATE_DECAP_DSCP) - ipv6_copy_dscp(skb->nh.ipv6h, skb->h.ipv6h); + ipv6_copy_dscp(ipv6_hdr(skb), skb->h.ipv6h); if (!(x->props.flags & XFRM_STATE_NOECN)) ipip6_ecn_decapsulate(skb); } else { diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c index cb5a723d4cb4..b93bfb87f494 100644 --- a/net/ipv6/xfrm6_policy.c +++ b/net/ipv6/xfrm6_policy.c @@ -271,7 +271,7 @@ static inline void _decode_session6(struct sk_buff *skb, struct flowi *fl) { u16 offset = skb->h.raw - skb->nh.raw; - struct ipv6hdr *hdr = skb->nh.ipv6h; + struct ipv6hdr *hdr = ipv6_hdr(skb); struct ipv6_opt_hdr *exthdr; const unsigned char *nh = skb_network_header(skb); u8 nexthdr = nh[IP6CB(skb)->nhoff]; diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c index 93c42232aa39..538499a89975 100644 --- a/net/ipv6/xfrm6_tunnel.c +++ b/net/ipv6/xfrm6_tunnel.c @@ -257,7 +257,7 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb) static int xfrm6_tunnel_rcv(struct sk_buff *skb) { - struct ipv6hdr *iph = skb->nh.ipv6h; + struct ipv6hdr *iph = ipv6_hdr(skb); __be32 spi; spi = xfrm6_tunnel_spi_lookup((xfrm_address_t *)&iph->saddr); diff --git a/net/netfilter/xt_DSCP.c b/net/netfilter/xt_DSCP.c index de647bd54893..a97704a3f95c 100644 --- a/net/netfilter/xt_DSCP.c +++ b/net/netfilter/xt_DSCP.c @@ -56,13 +56,13 @@ static unsigned int target6(struct sk_buff **pskb, const void *targinfo) { const struct xt_DSCP_info *dinfo = targinfo; - u_int8_t dscp = ipv6_get_dsfield((*pskb)->nh.ipv6h) >> XT_DSCP_SHIFT; + u_int8_t dscp = ipv6_get_dsfield(ipv6_hdr(*pskb)) >> XT_DSCP_SHIFT; if (dscp != dinfo->dscp) { if (!skb_make_writable(pskb, sizeof(struct ipv6hdr))) return NF_DROP; - ipv6_change_dsfield((*pskb)->nh.ipv6h, (__u8)(~XT_DSCP_MASK), + ipv6_change_dsfield(ipv6_hdr(*pskb), (__u8)(~XT_DSCP_MASK), dinfo->dscp << XT_DSCP_SHIFT); } return XT_CONTINUE; diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c index 9e948ce27600..15fe8f649510 100644 --- a/net/netfilter/xt_TCPMSS.c +++ b/net/netfilter/xt_TCPMSS.c @@ -171,7 +171,7 @@ xt_tcpmss_target6(struct sk_buff **pskb, const struct xt_target *target, const void *targinfo) { - struct ipv6hdr *ipv6h = (*pskb)->nh.ipv6h; + struct ipv6hdr *ipv6h = ipv6_hdr(*pskb); u8 nexthdr; int tcphoff; int ret; @@ -187,7 +187,7 @@ xt_tcpmss_target6(struct sk_buff **pskb, if (ret < 0) return NF_DROP; if (ret > 0) { - ipv6h = (*pskb)->nh.ipv6h; + ipv6h = ipv6_hdr(*pskb); ipv6h->payload_len = htons(ntohs(ipv6h->payload_len) + ret); } return XT_CONTINUE; diff --git a/net/netfilter/xt_dscp.c b/net/netfilter/xt_dscp.c index 9ec294cd2436..000e9c2f8d1f 100644 --- a/net/netfilter/xt_dscp.c +++ b/net/netfilter/xt_dscp.c @@ -49,7 +49,7 @@ static int match6(const struct sk_buff *skb, int *hotdrop) { const struct xt_dscp_info *info = matchinfo; - u_int8_t dscp = ipv6_get_dsfield(skb->nh.ipv6h) >> XT_DSCP_SHIFT; + u_int8_t dscp = ipv6_get_dsfield(ipv6_hdr(skb)) >> XT_DSCP_SHIFT; return (dscp == info->dscp) ^ !!info->invert; } diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c index 47af19ab03cf..eb932913693b 100644 --- a/net/netfilter/xt_hashlimit.c +++ b/net/netfilter/xt_hashlimit.c @@ -392,10 +392,10 @@ hashlimit_init_dst(struct xt_hashlimit_htable *hinfo, struct dsthash_dst *dst, #if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE) case AF_INET6: if (hinfo->cfg.mode & XT_HASHLIMIT_HASH_DIP) - memcpy(&dst->addr.ip6.dst, &skb->nh.ipv6h->daddr, + memcpy(&dst->addr.ip6.dst, &ipv6_hdr(skb)->daddr, sizeof(dst->addr.ip6.dst)); if (hinfo->cfg.mode & XT_HASHLIMIT_HASH_SIP) - memcpy(&dst->addr.ip6.src, &skb->nh.ipv6h->saddr, + memcpy(&dst->addr.ip6.src, &ipv6_hdr(skb)->saddr, sizeof(dst->addr.ip6.src)); if (!(hinfo->cfg.mode & diff --git a/net/netfilter/xt_length.c b/net/netfilter/xt_length.c index 65fdb2166996..77288c5ada78 100644 --- a/net/netfilter/xt_length.c +++ b/net/netfilter/xt_length.c @@ -47,7 +47,8 @@ match6(const struct sk_buff *skb, int *hotdrop) { const struct xt_length_info *info = matchinfo; - u_int16_t pktlen = ntohs(skb->nh.ipv6h->payload_len) + sizeof(struct ipv6hdr); + const u_int16_t pktlen = (ntohs(ipv6_hdr(skb)->payload_len) + + sizeof(struct ipv6hdr)); return (pktlen >= info->min && pktlen <= info->max) ^ info->invert; } diff --git a/net/sched/cls_rsvp.h b/net/sched/cls_rsvp.h index cb8cf5bfa053..6f373b020eb4 100644 --- a/net/sched/cls_rsvp.h +++ b/net/sched/cls_rsvp.h @@ -143,7 +143,7 @@ static int rsvp_classify(struct sk_buff *skb, struct tcf_proto *tp, u8 tunnelid = 0; u8 *xprt; #if RSVP_DST_LEN == 4 - struct ipv6hdr *nhptr = skb->nh.ipv6h; + struct ipv6hdr *nhptr = ipv6_hdr(skb); #else struct iphdr *nhptr = ip_hdr(skb); #endif diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c index 45b5734dd72a..2c857af79a1e 100644 --- a/net/sched/sch_dsmark.c +++ b/net/sched/sch_dsmark.c @@ -220,7 +220,7 @@ static int dsmark_enqueue(struct sk_buff *skb,struct Qdisc *sch) & ~INET_ECN_MASK; break; case __constant_htons(ETH_P_IPV6): - skb->tc_index = ipv6_get_dsfield(skb->nh.ipv6h) + skb->tc_index = ipv6_get_dsfield(ipv6_hdr(skb)) & ~INET_ECN_MASK; break; default: @@ -296,7 +296,7 @@ static struct sk_buff *dsmark_dequeue(struct Qdisc *sch) p->value[index]); break; case __constant_htons(ETH_P_IPV6): - ipv6_change_dsfield(skb->nh.ipv6h, p->mask[index], + ipv6_change_dsfield(ipv6_hdr(skb), p->mask[index], p->value[index]); break; default: diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c index 02081bc9e0d1..e3695407afc6 100644 --- a/net/sched/sch_sfq.c +++ b/net/sched/sch_sfq.c @@ -152,7 +152,7 @@ static unsigned sfq_hash(struct sfq_sched_data *q, struct sk_buff *skb) } case __constant_htons(ETH_P_IPV6): { - struct ipv6hdr *iph = skb->nh.ipv6h; + struct ipv6hdr *iph = ipv6_hdr(skb); h = iph->daddr.s6_addr32[3]; h2 = iph->saddr.s6_addr32[3]^iph->nexthdr; if (iph->nexthdr == IPPROTO_TCP || diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index 742f9ff42fbf..001be2de0b3c 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -393,10 +393,10 @@ static void sctp_v6_from_skb(union sctp_addr *addr,struct sk_buff *skb, sh = (struct sctphdr *) skb->h.raw; if (is_saddr) { *port = sh->source; - from = &skb->nh.ipv6h->saddr; + from = &ipv6_hdr(skb)->saddr; } else { *port = sh->dest; - from = &skb->nh.ipv6h->daddr; + from = &ipv6_hdr(skb)->daddr; } ipv6_addr_copy(&addr->v6.sin6_addr, from); } @@ -698,7 +698,7 @@ static int sctp_v6_skb_iif(const struct sk_buff *skb) /* Was this packet marked by Explicit Congestion Notification? */ static int sctp_v6_is_ce(const struct sk_buff *skb) { - return *((__u32 *)(skb->nh.ipv6h)) & htonl(1<<20); + return *((__u32 *)(ipv6_hdr(skb))) & htonl(1 << 20); } /* Dump the v6 addr to the seq file. */ @@ -777,7 +777,7 @@ static void sctp_inet6_skb_msgname(struct sk_buff *skb, char *msgname, } /* Otherwise, just copy the v6 address. */ - ipv6_addr_copy(&sin6->sin6_addr, &skb->nh.ipv6h->saddr); + ipv6_addr_copy(&sin6->sin6_addr, &ipv6_hdr(skb)->saddr); if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) { struct sctp_ulpevent *ev = sctp_skb2event(skb); sin6->sin6_scope_id = ev->iif; -- cgit v1.2.3 From aa8223c7bb0b05183e1737881ed21827aa5b9e73 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 10 Apr 2007 21:04:22 -0700 Subject: [SK_BUFF]: Introduce tcp_hdr(), remove skb->h.th Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- drivers/net/atl1/atl1_main.c | 7 ++++--- drivers/net/bnx2.c | 8 ++++---- drivers/net/chelsio/sge.c | 2 +- drivers/net/cxgb3/sge.c | 2 +- drivers/net/e1000/e1000_main.c | 11 ++++++----- drivers/net/ioc3-eth.c | 2 +- drivers/net/ixgb/ixgb_main.c | 7 ++++--- drivers/net/mv643xx_eth.c | 2 +- drivers/net/tg3.c | 15 +++++++-------- drivers/s390/net/qeth_eddp.c | 2 +- drivers/s390/net/qeth_tso.h | 4 ++-- include/linux/skbuff.h | 1 - include/linux/tcp.h | 9 +++++++-- include/net/tcp.h | 2 +- include/net/tcp_ecn.h | 6 +++--- net/ipv4/ip_output.c | 4 ++-- net/ipv4/syncookies.c | 36 ++++++++++++++++++------------------ net/ipv4/tcp.c | 22 +++++++++++----------- net/ipv4/tcp_input.c | 28 +++++++++++++++------------- net/ipv4/tcp_ipv4.c | 32 ++++++++++++++++---------------- net/ipv4/tcp_minisocks.c | 9 +++++---- net/ipv4/tcp_output.c | 13 ++++++++----- net/ipv6/tcp_ipv6.c | 32 ++++++++++++++++---------------- 23 files changed, 134 insertions(+), 122 deletions(-) (limited to 'drivers/s390/net/qeth_tso.h') diff --git a/drivers/net/atl1/atl1_main.c b/drivers/net/atl1/atl1_main.c index 8d5994751e2e..d60c2217332c 100644 --- a/drivers/net/atl1/atl1_main.c +++ b/drivers/net/atl1/atl1_main.c @@ -1298,9 +1298,10 @@ static int atl1_tso(struct atl1_adapter *adapter, struct sk_buff *skb, iph->tot_len = 0; iph->check = 0; - skb->h.th->check = ~csum_tcpudp_magic(iph->saddr, - iph->daddr, 0, - IPPROTO_TCP, 0); + tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, + iph->daddr, 0, + IPPROTO_TCP, + 0); ipofst = skb_network_offset(skb); if (ipofst != ENET_HEADER_SIZE) /* 802.3 frame */ tso->tsopl |= 1 << TSO_PARAM_ETHTYPE_SHIFT; diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index 73512fb16452..7e7b5f344030 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -4524,7 +4524,7 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev) vlan_tag_flags |= TX_BD_FLAGS_SW_LSO; tcp_opt_len = 0; - if (skb->h.th->doff > 5) + if (tcp_hdr(skb)->doff > 5) tcp_opt_len = tcp_optlen(skb); ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr); @@ -4532,9 +4532,9 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev) iph = ip_hdr(skb); iph->check = 0; iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len); - skb->h.th->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, - 0, IPPROTO_TCP, 0); - + tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, + iph->daddr, 0, + IPPROTO_TCP, 0); if (tcp_opt_len || (iph->ihl > 5)) { vlan_tag_flags |= ((iph->ihl - 5) + (tcp_opt_len >> 2)) << 8; diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c index a4204dff3636..43e92f9f0bcd 100644 --- a/drivers/net/chelsio/sge.c +++ b/drivers/net/chelsio/sge.c @@ -1872,7 +1872,7 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev) hdr->opcode = CPL_TX_PKT_LSO; hdr->ip_csum_dis = hdr->l4_csum_dis = 0; hdr->ip_hdr_words = ip_hdr(skb)->ihl; - hdr->tcp_hdr_words = skb->h.th->doff; + hdr->tcp_hdr_words = tcp_hdr(skb)->doff; hdr->eth_type_mss = htons(MK_ETH_TYPE_MSS(eth_type, skb_shinfo(skb)->gso_size)); hdr->len = htonl(skb->len - sizeof(*hdr)); diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c index d38b1bcd138e..a70fe9145a2e 100644 --- a/drivers/net/cxgb3/sge.c +++ b/drivers/net/cxgb3/sge.c @@ -901,7 +901,7 @@ static void write_tx_pkt_wr(struct adapter *adap, struct sk_buff *skb, CPL_ETH_II : CPL_ETH_II_VLAN; tso_info |= V_LSO_ETH_TYPE(eth_type) | V_LSO_IPHDR_WORDS(ip_hdr(skb)->ihl) | - V_LSO_TCPHDR_WORDS(skb->h.th->doff); + V_LSO_TCPHDR_WORDS(tcp_hdr(skb)->doff); hdr->lso_info = htonl(tso_info); flits = 3; } else { diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 4572fbba50f9..e86deb2ef823 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -2893,14 +2893,15 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring, struct iphdr *iph = ip_hdr(skb); iph->tot_len = 0; iph->check = 0; - skb->h.th->check = ~csum_tcpudp_magic(iph->saddr, - iph->daddr, 0, - IPPROTO_TCP, 0); + tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, + iph->daddr, 0, + IPPROTO_TCP, + 0); cmd_length = E1000_TXD_CMD_IP; ipcse = skb_transport_offset(skb) - 1; } else if (skb->protocol == htons(ETH_P_IPV6)) { ipv6_hdr(skb)->payload_len = 0; - skb->h.th->check = + tcp_hdr(skb)->check = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, 0, IPPROTO_TCP, 0); @@ -2909,7 +2910,7 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring, ipcss = skb_network_offset(skb); ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data; tucss = skb_transport_offset(skb); - tucso = (void *)&(skb->h.th->check) - (void *)skb->data; + tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data; tucse = 0; cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE | diff --git a/drivers/net/ioc3-eth.c b/drivers/net/ioc3-eth.c index ba012e10d79a..bc62e770a256 100644 --- a/drivers/net/ioc3-eth.c +++ b/drivers/net/ioc3-eth.c @@ -1426,7 +1426,7 @@ static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev) } if (proto == IPPROTO_TCP) { csoff += offsetof(struct tcphdr, check); - skb->h.th->check = csum; + tcp_hdr(skb)->check = csum; } w0 = ETXD_DOCHECKSUM | (csoff << ETXD_CHKOFF_SHIFT); diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c index 96550d681623..e729ced52dc3 100644 --- a/drivers/net/ixgb/ixgb_main.c +++ b/drivers/net/ixgb/ixgb_main.c @@ -1195,13 +1195,14 @@ ixgb_tso(struct ixgb_adapter *adapter, struct sk_buff *skb) iph = ip_hdr(skb); iph->tot_len = 0; iph->check = 0; - skb->h.th->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, - 0, IPPROTO_TCP, 0); + tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, + iph->daddr, 0, + IPPROTO_TCP, 0); ipcss = skb_network_offset(skb); ipcso = (void *)&(iph->check) - (void *)skb->data; ipcse = skb_transport_offset(skb) - 1; tucss = skb_transport_offset(skb); - tucso = (void *)&(skb->h.th->check) - (void *)skb->data; + tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data; tucse = 0; i = adapter->tx_ring.next_to_use; diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index 43723839e934..ab15ecd4b3d6 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -1169,7 +1169,7 @@ static void eth_tx_submit_descs_for_skb(struct mv643xx_private *mp, desc->l4i_chk = udp_hdr(skb)->check; break; case IPPROTO_TCP: - desc->l4i_chk = skb->h.th->check; + desc->l4i_chk = tcp_hdr(skb)->check; break; default: BUG(); diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 7ca30d76bf6f..414365c3198d 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -3922,7 +3922,7 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) base_flags |= (TXD_FLAG_CPU_PRE_DMA | TXD_FLAG_CPU_POST_DMA); - skb->h.th->check = 0; + tcp_hdr(skb)->check = 0; } else if (skb->ip_summed == CHECKSUM_PARTIAL) @@ -4080,14 +4080,13 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev) iph->check = 0; iph->tot_len = htons(mss + hdr_len); if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) { - skb->h.th->check = 0; + tcp_hdr(skb)->check = 0; base_flags &= ~TXD_FLAG_TCPUDP_CSUM; - } - else { - skb->h.th->check = ~csum_tcpudp_magic(iph->saddr, - iph->daddr, 0, - IPPROTO_TCP, 0); - } + } else + tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, + iph->daddr, 0, + IPPROTO_TCP, + 0); if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) || (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705)) { diff --git a/drivers/s390/net/qeth_eddp.c b/drivers/s390/net/qeth_eddp.c index 273f1745a009..b8e84674e170 100644 --- a/drivers/s390/net/qeth_eddp.c +++ b/drivers/s390/net/qeth_eddp.c @@ -416,7 +416,7 @@ __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, eddp->skb_offset += VLAN_HLEN; #endif /* CONFIG_QETH_VLAN */ } - tcph = eddp->skb->h.th; + tcph = tcp_hdr(eddp->skb); while (eddp->skb_offset < eddp->skb->len) { data_len = min((int)skb_shinfo(eddp->skb)->gso_size, (int)(eddp->skb->len - eddp->skb_offset)); diff --git a/drivers/s390/net/qeth_tso.h b/drivers/s390/net/qeth_tso.h index 4040bdd8c327..c20e923cf9ad 100644 --- a/drivers/s390/net/qeth_tso.h +++ b/drivers/s390/net/qeth_tso.h @@ -41,7 +41,7 @@ qeth_tso_fill_header(struct qeth_card *card, struct sk_buff *skb) hdr = (struct qeth_hdr_tso *) skb->data; iph = ip_hdr(skb); - tcph = skb->h.th; + tcph = tcp_hdr(skb); /*fix header to TSO values ...*/ hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO; /*set values which are fix for the first approach ...*/ @@ -65,7 +65,7 @@ qeth_tso_set_tcpip_header(struct qeth_card *card, struct sk_buff *skb) { struct iphdr *iph = ip_hdr(skb); struct ipv6hdr *ip6h = ipv6_hdr(skb); - struct tcphdr *tcph = skb->h.th; + struct tcphdr *tcph = tcp_hdr(skb); tcph->check = 0; if (skb->protocol == ETH_P_IPV6) { diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index e580416de78a..8f158d66d2a8 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -237,7 +237,6 @@ struct sk_buff { /* 4 byte hole on 64 bit*/ union { - struct tcphdr *th; struct iphdr *ipiph; struct ipv6hdr *ipv6h; unsigned char *raw; diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 244ae0dacf4a..911d937fb4c1 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -178,14 +178,19 @@ struct tcp_md5sig { #include #include +static inline struct tcphdr *tcp_hdr(const struct sk_buff *skb) +{ + return (struct tcphdr *)skb->h.raw; +} + static inline unsigned int tcp_hdrlen(const struct sk_buff *skb) { - return skb->h.th->doff * 4; + return tcp_hdr(skb)->doff * 4; } static inline unsigned int tcp_optlen(const struct sk_buff *skb) { - return (skb->h.th->doff - 5) * 4; + return (tcp_hdr(skb)->doff - 5) * 4; } /* This defines a selective acknowledgement block. */ diff --git a/include/net/tcp.h b/include/net/tcp.h index 6dacc352dcf1..af9273204cfd 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -984,7 +984,7 @@ static inline void tcp_openreq_init(struct request_sock *req, ireq->wscale_ok = rx_opt->wscale_ok; ireq->acked = 0; ireq->ecn_ok = 0; - ireq->rmt_port = skb->h.th->source; + ireq->rmt_port = tcp_hdr(skb)->source; } extern void tcp_enter_memory_pressure(void); diff --git a/include/net/tcp_ecn.h b/include/net/tcp_ecn.h index 4629d77173f2..b5f7c6ac0880 100644 --- a/include/net/tcp_ecn.h +++ b/include/net/tcp_ecn.h @@ -54,7 +54,7 @@ static inline void TCP_ECN_send(struct sock *sk, struct tcp_sock *tp, INET_ECN_xmit(sk); if (tp->ecn_flags&TCP_ECN_QUEUE_CWR) { tp->ecn_flags &= ~TCP_ECN_QUEUE_CWR; - skb->h.th->cwr = 1; + tcp_hdr(skb)->cwr = 1; skb_shinfo(skb)->gso_type |= SKB_GSO_TCP_ECN; } } else { @@ -62,7 +62,7 @@ static inline void TCP_ECN_send(struct sock *sk, struct tcp_sock *tp, INET_ECN_dontxmit(sk); } if (tp->ecn_flags & TCP_ECN_DEMAND_CWR) - skb->h.th->ece = 1; + tcp_hdr(skb)->ece = 1; } } @@ -70,7 +70,7 @@ static inline void TCP_ECN_send(struct sock *sk, struct tcp_sock *tp, static inline void TCP_ECN_accept_cwr(struct tcp_sock *tp, struct sk_buff *skb) { - if (skb->h.th->cwr) + if (tcp_hdr(skb)->cwr) tp->ecn_flags &= ~TCP_ECN_DEMAND_CWR; } diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 6d92358fc513..602268661eb3 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -1352,8 +1352,8 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar .tos = RT_TOS(ip_hdr(skb)->tos) } }, /* Not quite clean, but right. */ .uli_u = { .ports = - { .sport = skb->h.th->dest, - .dport = skb->h.th->source } }, + { .sport = tcp_hdr(skb)->dest, + .dport = tcp_hdr(skb)->source } }, .proto = sk->sk_protocol }; security_skb_classify_flow(skb, &fl); if (ip_route_output_key(&rt, &fl)) diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c index 261607178491..2da1be0589a9 100644 --- a/net/ipv4/syncookies.c +++ b/net/ipv4/syncookies.c @@ -125,10 +125,11 @@ static __u16 const msstab[] = { __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mssp) { struct tcp_sock *tp = tcp_sk(sk); + const struct iphdr *iph = ip_hdr(skb); + const struct tcphdr *th = tcp_hdr(skb); int mssind; const __u16 mss = *mssp; - tp->last_synq_overflow = jiffies; /* XXX sort msstab[] by probability? Binary search? */ @@ -138,9 +139,8 @@ __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mssp) NET_INC_STATS_BH(LINUX_MIB_SYNCOOKIESSENT); - return secure_tcp_syn_cookie(ip_hdr(skb)->saddr, ip_hdr(skb)->daddr, - skb->h.th->source, skb->h.th->dest, - ntohl(skb->h.th->seq), + return secure_tcp_syn_cookie(iph->saddr, iph->daddr, + th->source, th->dest, ntohl(th->seq), jiffies / (HZ * 60), mssind); } @@ -157,14 +157,13 @@ __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mssp) */ static inline int cookie_check(struct sk_buff *skb, __u32 cookie) { - __u32 seq; - __u32 mssind; - - seq = ntohl(skb->h.th->seq)-1; - mssind = check_tcp_syn_cookie(cookie, - ip_hdr(skb)->saddr, ip_hdr(skb)->daddr, - skb->h.th->source, skb->h.th->dest, - seq, jiffies / (HZ * 60), COUNTER_TRIES); + const struct iphdr *iph = ip_hdr(skb); + const struct tcphdr *th = tcp_hdr(skb); + __u32 seq = ntohl(th->seq) - 1; + __u32 mssind = check_tcp_syn_cookie(cookie, iph->saddr, iph->daddr, + th->source, th->dest, seq, + jiffies / (HZ * 60), + COUNTER_TRIES); return mssind < NUM_MSS ? msstab[mssind] + 1 : 0; } @@ -191,14 +190,15 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb, struct inet_request_sock *ireq; struct tcp_request_sock *treq; struct tcp_sock *tp = tcp_sk(sk); - __u32 cookie = ntohl(skb->h.th->ack_seq) - 1; + const struct tcphdr *th = tcp_hdr(skb); + __u32 cookie = ntohl(th->ack_seq) - 1; struct sock *ret = sk; struct request_sock *req; int mss; struct rtable *rt; __u8 rcv_wscale; - if (!sysctl_tcp_syncookies || !skb->h.th->ack) + if (!sysctl_tcp_syncookies || !th->ack) goto out; if (time_after(jiffies, tp->last_synq_overflow + TCP_TIMEOUT_INIT) || @@ -220,10 +220,10 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb, } ireq = inet_rsk(req); treq = tcp_rsk(req); - treq->rcv_isn = ntohl(skb->h.th->seq) - 1; + treq->rcv_isn = ntohl(th->seq) - 1; treq->snt_isn = cookie; req->mss = mss; - ireq->rmt_port = skb->h.th->source; + ireq->rmt_port = th->source; ireq->loc_addr = ip_hdr(skb)->daddr; ireq->rmt_addr = ip_hdr(skb)->saddr; ireq->opt = NULL; @@ -261,8 +261,8 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb, .tos = RT_CONN_FLAGS(sk) } }, .proto = IPPROTO_TCP, .uli_u = { .ports = - { .sport = skb->h.th->dest, - .dport = skb->h.th->source } } }; + { .sport = th->dest, + .dport = th->source } } }; security_req_classify_flow(req, &fl); if (ip_route_output_key(&rt, &fl)) { reqsk_free(req); diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 689f9330f1b9..f832f3c33ab1 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -425,7 +425,7 @@ int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg) /* Subtract 1, if FIN is in queue. */ if (answ && !skb_queue_empty(&sk->sk_receive_queue)) answ -= - ((struct sk_buff *)sk->sk_receive_queue.prev)->h.th->fin; + tcp_hdr((struct sk_buff *)sk->sk_receive_queue.prev)->fin; } else answ = tp->urg_seq - tp->copied_seq; release_sock(sk); @@ -1016,9 +1016,9 @@ static inline struct sk_buff *tcp_recv_skb(struct sock *sk, u32 seq, u32 *off) skb_queue_walk(&sk->sk_receive_queue, skb) { offset = seq - TCP_SKB_CB(skb)->seq; - if (skb->h.th->syn) + if (tcp_hdr(skb)->syn) offset--; - if (offset < skb->len || skb->h.th->fin) { + if (offset < skb->len || tcp_hdr(skb)->fin) { *off = offset; return skb; } @@ -1070,7 +1070,7 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc, if (offset != skb->len) break; } - if (skb->h.th->fin) { + if (tcp_hdr(skb)->fin) { sk_eat_skb(sk, skb, 0); ++seq; break; @@ -1174,11 +1174,11 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, break; } offset = *seq - TCP_SKB_CB(skb)->seq; - if (skb->h.th->syn) + if (tcp_hdr(skb)->syn) offset--; if (offset < skb->len) goto found_ok_skb; - if (skb->h.th->fin) + if (tcp_hdr(skb)->fin) goto found_fin_ok; BUG_TRAP(flags & MSG_PEEK); skb = skb->next; @@ -1394,7 +1394,7 @@ skip_copy: if (used + offset < skb->len) continue; - if (skb->h.th->fin) + if (tcp_hdr(skb)->fin) goto found_fin_ok; if (!(flags & MSG_PEEK)) { sk_eat_skb(sk, skb, copied_early); @@ -1563,7 +1563,7 @@ void tcp_close(struct sock *sk, long timeout) */ while ((skb = __skb_dequeue(&sk->sk_receive_queue)) != NULL) { u32 len = TCP_SKB_CB(skb)->end_seq - TCP_SKB_CB(skb)->seq - - skb->h.th->fin; + tcp_hdr(skb)->fin; data_was_unread += len; __kfree_skb(skb); } @@ -2170,7 +2170,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features) if (!pskb_may_pull(skb, sizeof(*th))) goto out; - th = skb->h.th; + th = tcp_hdr(skb); thlen = th->doff * 4; if (thlen < sizeof(*th)) goto out; @@ -2210,7 +2210,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features) delta = htonl(oldlen + (thlen + len)); skb = segs; - th = skb->h.th; + th = tcp_hdr(skb); seq = ntohl(th->seq); do { @@ -2224,7 +2224,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features) seq += len; skb = skb->next; - th = skb->h.th; + th = tcp_hdr(skb); th->seq = htonl(seq); th->cwr = 0; diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 2776a8b01339..c1ce36237380 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -148,7 +148,7 @@ static void tcp_measure_rcv_mss(struct sock *sk, * to handle super-low mtu links fairly. */ (len >= TCP_MIN_MSS + sizeof(struct tcphdr) && - !(tcp_flag_word(skb->h.th)&TCP_REMNANT))) { + !(tcp_flag_word(tcp_hdr(skb)) & TCP_REMNANT))) { /* Subtract also invariant (if peer is RFC compliant), * tcp header plus fixed timestamp option length. * Resulting "len" is MSS free of SACK jitter. @@ -2559,9 +2559,9 @@ static int tcp_ack_update_window(struct sock *sk, struct tcp_sock *tp, struct sk_buff *skb, u32 ack, u32 ack_seq) { int flag = 0; - u32 nwin = ntohs(skb->h.th->window); + u32 nwin = ntohs(tcp_hdr(skb)->window); - if (likely(!skb->h.th->syn)) + if (likely(!tcp_hdr(skb)->syn)) nwin <<= tp->rx_opt.snd_wscale; if (tcp_may_update_window(tp, ack, ack_seq, nwin)) { @@ -2766,7 +2766,7 @@ static int tcp_ack(struct sock *sk, struct sk_buff *skb, int flag) if (TCP_SKB_CB(skb)->sacked) flag |= tcp_sacktag_write_queue(sk, skb, prior_snd_una); - if (TCP_ECN_rcv_ecn_echo(tp, skb->h.th)) + if (TCP_ECN_rcv_ecn_echo(tp, tcp_hdr(skb))) flag |= FLAG_ECE; tcp_ca_event(sk, CA_EVENT_SLOW_ACK); @@ -2833,7 +2833,7 @@ uninteresting_ack: void tcp_parse_options(struct sk_buff *skb, struct tcp_options_received *opt_rx, int estab) { unsigned char *ptr; - struct tcphdr *th = skb->h.th; + struct tcphdr *th = tcp_hdr(skb); int length=(th->doff*4)-sizeof(struct tcphdr); ptr = (unsigned char *)(th + 1); @@ -2995,7 +2995,7 @@ static inline void tcp_replace_ts_recent(struct tcp_sock *tp, u32 seq) static int tcp_disordered_ack(const struct sock *sk, const struct sk_buff *skb) { struct tcp_sock *tp = tcp_sk(sk); - struct tcphdr *th = skb->h.th; + struct tcphdr *th = tcp_hdr(skb); u32 seq = TCP_SKB_CB(skb)->seq; u32 ack = TCP_SKB_CB(skb)->ack_seq; @@ -3357,8 +3357,8 @@ static void tcp_ofo_queue(struct sock *sk) __skb_unlink(skb, &tp->out_of_order_queue); __skb_queue_tail(&sk->sk_receive_queue, skb); tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq; - if (skb->h.th->fin) - tcp_fin(skb, sk, skb->h.th); + if (tcp_hdr(skb)->fin) + tcp_fin(skb, sk, tcp_hdr(skb)); } } @@ -3366,7 +3366,7 @@ static int tcp_prune_queue(struct sock *sk); static void tcp_data_queue(struct sock *sk, struct sk_buff *skb) { - struct tcphdr *th = skb->h.th; + struct tcphdr *th = tcp_hdr(skb); struct tcp_sock *tp = tcp_sk(sk); int eaten = -1; @@ -3605,7 +3605,7 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list, * - bloated or contains data before "start" or * overlaps to the next one. */ - if (!skb->h.th->syn && !skb->h.th->fin && + if (!tcp_hdr(skb)->syn && !tcp_hdr(skb)->fin && (tcp_win_from_space(skb->truesize) > skb->len || before(TCP_SKB_CB(skb)->seq, start) || (skb->next != tail && @@ -3616,7 +3616,7 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list, start = TCP_SKB_CB(skb)->end_seq; skb = skb->next; } - if (skb == tail || skb->h.th->syn || skb->h.th->fin) + if (skb == tail || tcp_hdr(skb)->syn || tcp_hdr(skb)->fin) return; while (before(start, end)) { @@ -3665,7 +3665,9 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list, __kfree_skb(skb); NET_INC_STATS_BH(LINUX_MIB_TCPRCVCOLLAPSED); skb = next; - if (skb == tail || skb->h.th->syn || skb->h.th->fin) + if (skb == tail || + tcp_hdr(skb)->syn || + tcp_hdr(skb)->fin) return; } } @@ -4072,7 +4074,7 @@ static int tcp_dma_try_early_copy(struct sock *sk, struct sk_buff *skb, int hlen tcp_rcv_space_adjust(sk); if ((tp->ucopy.len == 0) || - (tcp_flag_word(skb->h.th) & TCP_FLAG_PSH) || + (tcp_flag_word(tcp_hdr(skb)) & TCP_FLAG_PSH) || (atomic_read(&sk->sk_rmem_alloc) > (sk->sk_rcvbuf >> 1))) { tp->ucopy.wakeup = 1; sk->sk_data_ready(sk, 0); diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index c146a02f8495..617a5e4ca010 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -127,8 +127,8 @@ static inline __u32 tcp_v4_init_sequence(struct sk_buff *skb) { return secure_tcp_sequence_number(ip_hdr(skb)->daddr, ip_hdr(skb)->saddr, - skb->h.th->dest, - skb->h.th->source); + tcp_hdr(skb)->dest, + tcp_hdr(skb)->source); } int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp) @@ -499,7 +499,7 @@ out: void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb) { struct inet_sock *inet = inet_sk(sk); - struct tcphdr *th = skb->h.th; + struct tcphdr *th = tcp_hdr(skb); if (skb->ip_summed == CHECKSUM_PARTIAL) { th->check = ~tcp_v4_check(len, inet->saddr, @@ -522,7 +522,7 @@ int tcp_v4_gso_send_check(struct sk_buff *skb) return -EINVAL; iph = ip_hdr(skb); - th = skb->h.th; + th = tcp_hdr(skb); th->check = 0; th->check = ~tcp_v4_check(skb->len, iph->saddr, iph->daddr, 0); @@ -546,7 +546,7 @@ int tcp_v4_gso_send_check(struct sk_buff *skb) static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb) { - struct tcphdr *th = skb->h.th; + struct tcphdr *th = tcp_hdr(skb); struct { struct tcphdr th; #ifdef CONFIG_TCP_MD5SIG @@ -622,7 +622,7 @@ static void tcp_v4_send_ack(struct tcp_timewait_sock *twsk, struct sk_buff *skb, u32 seq, u32 ack, u32 win, u32 ts) { - struct tcphdr *th = skb->h.th; + struct tcphdr *th = tcp_hdr(skb); struct { struct tcphdr th; __be32 opt[(TCPOLEN_TSTAMP_ALIGNED >> 2) @@ -745,7 +745,7 @@ static int tcp_v4_send_synack(struct sock *sk, struct request_sock *req, skb = tcp_make_synack(sk, dst, req); if (skb) { - struct tcphdr *th = skb->h.th; + struct tcphdr *th = tcp_hdr(skb); th->check = tcp_v4_check(skb->len, ireq->loc_addr, @@ -781,7 +781,7 @@ static void syn_flood_warning(struct sk_buff *skb) warntime = jiffies; printk(KERN_INFO "possible SYN flooding on port %d. Sending cookies.\n", - ntohs(skb->h.th->dest)); + ntohs(tcp_hdr(skb)->dest)); } } #endif @@ -1134,7 +1134,7 @@ static int tcp_v4_inbound_md5_hash(struct sock *sk, struct sk_buff *skb) __u8 *hash_location = NULL; struct tcp_md5sig_key *hash_expected; const struct iphdr *iph = ip_hdr(skb); - struct tcphdr *th = skb->h.th; + struct tcphdr *th = tcp_hdr(skb); int length = (th->doff << 2) - sizeof(struct tcphdr); int genhash; unsigned char *ptr; @@ -1327,7 +1327,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb) ireq->rmt_addr = saddr; ireq->opt = tcp_v4_save_options(sk, skb); if (!want_cookie) - TCP_ECN_create_request(req, skb->h.th); + TCP_ECN_create_request(req, tcp_hdr(skb)); if (want_cookie) { #ifdef CONFIG_SYN_COOKIES @@ -1375,7 +1375,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb) LIMIT_NETDEBUG(KERN_DEBUG "TCP: drop open " "request from %u.%u.%u.%u/%u\n", NIPQUAD(saddr), - ntohs(skb->h.th->source)); + ntohs(tcp_hdr(skb)->source)); dst_release(dst); goto drop_and_free; } @@ -1481,7 +1481,7 @@ exit: static struct sock *tcp_v4_hnd_req(struct sock *sk, struct sk_buff *skb) { - struct tcphdr *th = skb->h.th; + struct tcphdr *th = tcp_hdr(skb); const struct iphdr *iph = ip_hdr(skb); struct sock *nsk; struct request_sock **prev; @@ -1556,7 +1556,7 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb) if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */ TCP_CHECK_TIMER(sk); - if (tcp_rcv_established(sk, skb, skb->h.th, skb->len)) { + if (tcp_rcv_established(sk, skb, tcp_hdr(skb), skb->len)) { rsk = sk; goto reset; } @@ -1582,7 +1582,7 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb) } TCP_CHECK_TIMER(sk); - if (tcp_rcv_state_process(sk, skb, skb->h.th, skb->len)) { + if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb), skb->len)) { rsk = sk; goto reset; } @@ -1625,7 +1625,7 @@ int tcp_v4_rcv(struct sk_buff *skb) if (!pskb_may_pull(skb, sizeof(struct tcphdr))) goto discard_it; - th = skb->h.th; + th = tcp_hdr(skb); if (th->doff < sizeof(struct tcphdr) / 4) goto bad_packet; @@ -1640,7 +1640,7 @@ int tcp_v4_rcv(struct sk_buff *skb) tcp_v4_checksum_init(skb))) goto bad_packet; - th = skb->h.th; + th = tcp_hdr(skb); iph = ip_hdr(skb); TCP_SKB_CB(skb)->seq = ntohl(th->seq); TCP_SKB_CB(skb)->end_seq = (TCP_SKB_CB(skb)->seq + th->syn + th->fin + diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c index 463d2b24d2db..a12b08fca5ad 100644 --- a/net/ipv4/tcp_minisocks.c +++ b/net/ipv4/tcp_minisocks.c @@ -453,7 +453,8 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req, newtp->rx_opt.snd_wscale = newtp->rx_opt.rcv_wscale = 0; newtp->window_clamp = min(newtp->window_clamp, 65535U); } - newtp->snd_wnd = ntohs(skb->h.th->window) << newtp->rx_opt.snd_wscale; + newtp->snd_wnd = (ntohs(tcp_hdr(skb)->window) << + newtp->rx_opt.snd_wscale); newtp->max_window = newtp->snd_wnd; if (newtp->rx_opt.tstamp_ok) { @@ -488,7 +489,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb, struct request_sock *req, struct request_sock **prev) { - struct tcphdr *th = skb->h.th; + const struct tcphdr *th = tcp_hdr(skb); __be32 flg = tcp_flag_word(th) & (TCP_FLAG_RST|TCP_FLAG_SYN|TCP_FLAG_ACK); int paws_reject = 0; struct tcp_options_received tmp_opt; @@ -710,8 +711,8 @@ int tcp_child_process(struct sock *parent, struct sock *child, int state = child->sk_state; if (!sock_owned_by_user(child)) { - ret = tcp_rcv_state_process(child, skb, skb->h.th, skb->len); - + ret = tcp_rcv_state_process(child, skb, tcp_hdr(skb), + skb->len); /* Wakeup parent, send SIGIO */ if (state == TCP_SYN_RECV && child->sk_state != state) parent->sk_data_ready(parent, 0); diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index f19f5fb361b5..29c53fbb2204 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -465,11 +465,12 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it, tcp_header_size += TCPOLEN_MD5SIG_ALIGNED; #endif - th = (struct tcphdr *) skb_push(skb, tcp_header_size); - skb->h.th = th; + skb_push(skb, tcp_header_size); + skb_reset_transport_header(skb); skb_set_owner_w(skb, sk); /* Build TCP header and checksum it. */ + th = tcp_hdr(skb); th->source = inet->sport; th->dest = inet->dport; th->seq = htonl(tcb->seq); @@ -524,7 +525,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it, tp->af_specific->calc_md5_hash(md5_hash_location, md5, sk, NULL, NULL, - skb->h.th, + tcp_hdr(skb), sk->sk_protocol, skb->len); } @@ -2128,8 +2129,10 @@ struct sk_buff * tcp_make_synack(struct sock *sk, struct dst_entry *dst, if (md5) tcp_header_size += TCPOLEN_MD5SIG_ALIGNED; #endif - skb->h.th = th = (struct tcphdr *) skb_push(skb, tcp_header_size); + skb_push(skb, tcp_header_size); + skb_reset_transport_header(skb); + th = tcp_hdr(skb); memset(th, 0, sizeof(struct tcphdr)); th->syn = 1; th->ack = 1; @@ -2183,7 +2186,7 @@ struct sk_buff * tcp_make_synack(struct sock *sk, struct dst_entry *dst, tp->af_specific->calc_md5_hash(md5_hash_location, md5, NULL, dst, req, - skb->h.th, sk->sk_protocol, + tcp_hdr(skb), sk->sk_protocol, skb->len); } #endif diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index c573353f21cd..4a55da079f5f 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -117,8 +117,8 @@ static __u32 tcp_v6_init_sequence(struct sk_buff *skb) { return secure_tcpv6_sequence_number(ipv6_hdr(skb)->daddr.s6_addr32, ipv6_hdr(skb)->saddr.s6_addr32, - skb->h.th->dest, - skb->h.th->source); + tcp_hdr(skb)->dest, + tcp_hdr(skb)->source); } static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, @@ -509,7 +509,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req, skb = tcp_make_synack(sk, dst, req); if (skb) { - struct tcphdr *th = skb->h.th; + struct tcphdr *th = tcp_hdr(skb); th->check = tcp_v6_check(th, skb->len, &treq->loc_addr, &treq->rmt_addr, @@ -838,7 +838,7 @@ static int tcp_v6_inbound_md5_hash (struct sock *sk, struct sk_buff *skb) __u8 *hash_location = NULL; struct tcp_md5sig_key *hash_expected; struct ipv6hdr *ip6h = ipv6_hdr(skb); - struct tcphdr *th = skb->h.th; + struct tcphdr *th = tcp_hdr(skb); int length = (th->doff << 2) - sizeof (*th); int genhash; u8 *ptr; @@ -946,7 +946,7 @@ static struct timewait_sock_ops tcp6_timewait_sock_ops = { static void tcp_v6_send_check(struct sock *sk, int len, struct sk_buff *skb) { struct ipv6_pinfo *np = inet6_sk(sk); - struct tcphdr *th = skb->h.th; + struct tcphdr *th = tcp_hdr(skb); if (skb->ip_summed == CHECKSUM_PARTIAL) { th->check = ~csum_ipv6_magic(&np->saddr, &np->daddr, len, IPPROTO_TCP, 0); @@ -967,7 +967,7 @@ static int tcp_v6_gso_send_check(struct sk_buff *skb) return -EINVAL; ipv6h = ipv6_hdr(skb); - th = skb->h.th; + th = tcp_hdr(skb); th->check = 0; th->check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, skb->len, @@ -979,7 +979,7 @@ static int tcp_v6_gso_send_check(struct sk_buff *skb) static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb) { - struct tcphdr *th = skb->h.th, *t1; + struct tcphdr *th = tcp_hdr(skb), *t1; struct sk_buff *buff; struct flowi fl; int tot_len = sizeof(*th); @@ -1079,7 +1079,7 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb) static void tcp_v6_send_ack(struct tcp_timewait_sock *tw, struct sk_buff *skb, u32 seq, u32 ack, u32 win, u32 ts) { - struct tcphdr *th = skb->h.th, *t1; + struct tcphdr *th = tcp_hdr(skb), *t1; struct sk_buff *buff; struct flowi fl; int tot_len = sizeof(struct tcphdr); @@ -1195,7 +1195,7 @@ static void tcp_v6_reqsk_send_ack(struct sk_buff *skb, struct request_sock *req) static struct sock *tcp_v6_hnd_req(struct sock *sk,struct sk_buff *skb) { struct request_sock *req, **prev; - const struct tcphdr *th = skb->h.th; + const struct tcphdr *th = tcp_hdr(skb); struct sock *nsk; /* Find possible connection requests. */ @@ -1275,7 +1275,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb) treq = inet6_rsk(req); ipv6_addr_copy(&treq->rmt_addr, &ipv6_hdr(skb)->saddr); ipv6_addr_copy(&treq->loc_addr, &ipv6_hdr(skb)->daddr); - TCP_ECN_create_request(req, skb->h.th); + TCP_ECN_create_request(req, tcp_hdr(skb)); treq->pktopts = NULL; if (ipv6_opt_accepted(sk, skb) || np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo || @@ -1528,14 +1528,14 @@ out: static __sum16 tcp_v6_checksum_init(struct sk_buff *skb) { if (skb->ip_summed == CHECKSUM_COMPLETE) { - if (!tcp_v6_check(skb->h.th, skb->len, &ipv6_hdr(skb)->saddr, + if (!tcp_v6_check(tcp_hdr(skb), skb->len, &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, skb->csum)) { skb->ip_summed = CHECKSUM_UNNECESSARY; return 0; } } - skb->csum = ~csum_unfold(tcp_v6_check(skb->h.th, skb->len, + skb->csum = ~csum_unfold(tcp_v6_check(tcp_hdr(skb), skb->len, &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, 0)); @@ -1601,7 +1601,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb) if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */ TCP_CHECK_TIMER(sk); - if (tcp_rcv_established(sk, skb, skb->h.th, skb->len)) + if (tcp_rcv_established(sk, skb, tcp_hdr(skb), skb->len)) goto reset; TCP_CHECK_TIMER(sk); if (opt_skb) @@ -1632,7 +1632,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb) } TCP_CHECK_TIMER(sk); - if (tcp_rcv_state_process(sk, skb, skb->h.th, skb->len)) + if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb), skb->len)) goto reset; TCP_CHECK_TIMER(sk); if (opt_skb) @@ -1698,7 +1698,7 @@ static int tcp_v6_rcv(struct sk_buff **pskb) if (!pskb_may_pull(skb, sizeof(struct tcphdr))) goto discard_it; - th = skb->h.th; + th = tcp_hdr(skb); if (th->doff < sizeof(struct tcphdr)/4) goto bad_packet; @@ -1709,7 +1709,7 @@ static int tcp_v6_rcv(struct sk_buff **pskb) tcp_v6_checksum_init(skb))) goto bad_packet; - th = skb->h.th; + th = tcp_hdr(skb); TCP_SKB_CB(skb)->seq = ntohl(th->seq); TCP_SKB_CB(skb)->end_seq = (TCP_SKB_CB(skb)->seq + th->syn + th->fin + skb->len - th->doff*4); -- cgit v1.2.3