mirror of https://gitee.com/openkylin/linux.git
[BRIDGE]: netfilter whitespace
Run br_netfilter through Lindent to fix whitespace. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger
David S. Miller
parent
d5513a7d32
commit
789bc3e5b6
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@ -136,7 +136,7 @@ static void __br_dnat_complain(void)
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if (jiffies - last_complaint >= 5 * HZ) {
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printk(KERN_WARNING "Performing cross-bridge DNAT requires IP "
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"forwarding to be enabled\n");
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"forwarding to be enabled\n");
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last_complaint = jiffies;
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}
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}
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@ -218,12 +218,17 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
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nf_bridge->mask ^= BRNF_NF_BRIDGE_PREROUTING;
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if (dnat_took_place(skb)) {
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if (ip_route_input(skb, iph->daddr, iph->saddr, iph->tos,
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dev)) {
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if (ip_route_input(skb, iph->daddr, iph->saddr, iph->tos, dev)) {
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struct rtable *rt;
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struct flowi fl = { .nl_u =
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{ .ip4_u = { .daddr = iph->daddr, .saddr = 0 ,
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.tos = RT_TOS(iph->tos)} }, .proto = 0};
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struct flowi fl = {
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.nl_u = {
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.ip4_u = {
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.daddr = iph->daddr,
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.saddr = 0,
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.tos = RT_TOS(iph->tos) },
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},
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.proto = 0,
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};
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if (!ip_route_output_key(&rt, &fl)) {
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/* - Bridged-and-DNAT'ed traffic doesn't
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@ -257,8 +262,7 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
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1);
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return 0;
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}
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memcpy(eth_hdr(skb)->h_dest, dev->dev_addr,
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ETH_ALEN);
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memcpy(eth_hdr(skb)->h_dest, dev->dev_addr, ETH_ALEN);
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skb->pkt_type = PACKET_HOST;
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}
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} else {
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@ -297,10 +301,10 @@ static struct net_device *setup_pre_routing(struct sk_buff *skb)
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/* We only check the length. A bridge shouldn't do any hop-by-hop stuff anyway */
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static int check_hbh_len(struct sk_buff *skb)
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{
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unsigned char *raw = (u8*)(skb->nh.ipv6h+1);
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unsigned char *raw = (u8 *) (skb->nh.ipv6h + 1);
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u32 pkt_len;
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int off = raw - skb->nh.raw;
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int len = (raw[1]+1)<<3;
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int len = (raw[1] + 1) << 3;
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if ((raw + len) - skb->data > skb_headlen(skb))
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goto bad;
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@ -309,7 +313,7 @@ static int check_hbh_len(struct sk_buff *skb)
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len -= 2;
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while (len > 0) {
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int optlen = skb->nh.raw[off+1]+2;
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int optlen = skb->nh.raw[off + 1] + 2;
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switch (skb->nh.raw[off]) {
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case IPV6_TLV_PAD0:
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@ -320,16 +324,16 @@ static int check_hbh_len(struct sk_buff *skb)
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break;
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case IPV6_TLV_JUMBO:
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if (skb->nh.raw[off+1] != 4 || (off&3) != 2)
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if (skb->nh.raw[off + 1] != 4 || (off & 3) != 2)
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goto bad;
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pkt_len = ntohl(*(u32*)(skb->nh.raw+off+2));
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pkt_len = ntohl(*(u32 *) (skb->nh.raw + off + 2));
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if (pkt_len <= IPV6_MAXPLEN ||
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skb->nh.ipv6h->payload_len)
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goto bad;
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if (pkt_len > skb->len - sizeof(struct ipv6hdr))
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goto bad;
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if (pskb_trim_rcsum(skb,
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pkt_len+sizeof(struct ipv6hdr)))
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pkt_len + sizeof(struct ipv6hdr)))
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goto bad;
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break;
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default:
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@ -350,8 +354,10 @@ static int check_hbh_len(struct sk_buff *skb)
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/* Replicate the checks that IPv6 does on packet reception and pass the packet
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* to ip6tables, which doesn't support NAT, so things are fairly simple. */
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static unsigned int br_nf_pre_routing_ipv6(unsigned int hook,
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struct sk_buff *skb, const struct net_device *in,
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const struct net_device *out, int (*okfn)(struct sk_buff *))
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struct sk_buff *skb,
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const struct net_device *in,
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const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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{
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struct ipv6hdr *hdr;
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u32 pkt_len;
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@ -381,9 +387,9 @@ static unsigned int br_nf_pre_routing_ipv6(unsigned int hook,
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}
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}
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if (hdr->nexthdr == NEXTHDR_HOP && check_hbh_len(skb))
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goto inhdr_error;
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goto inhdr_error;
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nf_bridge_put(skb->nf_bridge);
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nf_bridge_put(skb->nf_bridge);
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if ((nf_bridge = nf_bridge_alloc(skb)) == NULL)
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return NF_DROP;
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if (!setup_pre_routing(skb))
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@ -452,15 +458,15 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff **pskb,
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if (iph->ihl < 5 || iph->version != 4)
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goto inhdr_error;
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if (!pskb_may_pull(skb, 4*iph->ihl))
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if (!pskb_may_pull(skb, 4 * iph->ihl))
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goto inhdr_error;
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iph = skb->nh.iph;
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if (ip_fast_csum((__u8 *)iph, iph->ihl) != 0)
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if (ip_fast_csum((__u8 *) iph, iph->ihl) != 0)
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goto inhdr_error;
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len = ntohs(iph->tot_len);
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if (skb->len < len || len < 4*iph->ihl)
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if (skb->len < len || len < 4 * iph->ihl)
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goto inhdr_error;
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if (skb->len > len) {
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@ -469,7 +475,7 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff **pskb,
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skb->ip_summed = CHECKSUM_NONE;
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}
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nf_bridge_put(skb->nf_bridge);
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nf_bridge_put(skb->nf_bridge);
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if ((nf_bridge = nf_bridge_alloc(skb)) == NULL)
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return NF_DROP;
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if (!setup_pre_routing(skb))
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@ -482,7 +488,7 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff **pskb,
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return NF_STOLEN;
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inhdr_error:
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// IP_INC_STATS_BH(IpInHdrErrors);
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// IP_INC_STATS_BH(IpInHdrErrors);
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out:
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return NF_DROP;
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}
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@ -496,8 +502,9 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff **pskb,
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* register an IPv4 PRE_ROUTING 'sabotage' hook that will
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* prevent this from happening. */
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static unsigned int br_nf_local_in(unsigned int hook, struct sk_buff **pskb,
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const struct net_device *in, const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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const struct net_device *in,
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const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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{
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struct sk_buff *skb = *pskb;
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@ -509,7 +516,6 @@ static unsigned int br_nf_local_in(unsigned int hook, struct sk_buff **pskb,
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return NF_ACCEPT;
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}
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/* PF_BRIDGE/FORWARD *************************************************/
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static int br_nf_forward_finish(struct sk_buff *skb)
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{
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@ -531,7 +537,7 @@ static int br_nf_forward_finish(struct sk_buff *skb)
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skb->nh.raw -= VLAN_HLEN;
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}
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NF_HOOK_THRESH(PF_BRIDGE, NF_BR_FORWARD, skb, in,
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skb->dev, br_forward_finish, 1);
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skb->dev, br_forward_finish, 1);
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return 0;
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}
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@ -541,8 +547,9 @@ static int br_nf_forward_finish(struct sk_buff *skb)
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* because of the physdev module. For ARP, indev and outdev are the
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* bridge ports. */
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static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff **pskb,
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const struct net_device *in, const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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const struct net_device *in,
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const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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{
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struct sk_buff *skb = *pskb;
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struct nf_bridge_info *nf_bridge;
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@ -584,8 +591,9 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff **pskb,
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}
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static unsigned int br_nf_forward_arp(unsigned int hook, struct sk_buff **pskb,
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const struct net_device *in, const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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const struct net_device *in,
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const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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{
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struct sk_buff *skb = *pskb;
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struct vlan_ethhdr *hdr = vlan_eth_hdr(skb);
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@ -617,7 +625,6 @@ static unsigned int br_nf_forward_arp(unsigned int hook, struct sk_buff **pskb,
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return NF_STOLEN;
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}
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/* PF_BRIDGE/LOCAL_OUT ***********************************************/
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static int br_nf_local_out_finish(struct sk_buff *skb)
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{
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@ -627,7 +634,7 @@ static int br_nf_local_out_finish(struct sk_buff *skb)
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}
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NF_HOOK_THRESH(PF_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
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br_forward_finish, NF_BR_PRI_FIRST + 1);
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br_forward_finish, NF_BR_PRI_FIRST + 1);
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return 0;
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}
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@ -653,8 +660,9 @@ static int br_nf_local_out_finish(struct sk_buff *skb)
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* even routed packets that didn't arrive on a bridge interface have their
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* nf_bridge->physindev set. */
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static unsigned int br_nf_local_out(unsigned int hook, struct sk_buff **pskb,
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const struct net_device *in, const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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const struct net_device *in,
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const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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{
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struct net_device *realindev, *realoutdev;
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struct sk_buff *skb = *pskb;
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@ -716,7 +724,7 @@ static unsigned int br_nf_local_out(unsigned int hook, struct sk_buff **pskb,
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/* IP forwarded traffic has a physindev, locally
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* generated traffic hasn't. */
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if (realindev != NULL) {
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if (!(nf_bridge->mask & BRNF_DONT_TAKE_PARENT) ) {
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if (!(nf_bridge->mask & BRNF_DONT_TAKE_PARENT)) {
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struct net_device *parent = bridge_parent(realindev);
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if (parent)
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realindev = parent;
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@ -738,8 +746,9 @@ static unsigned int br_nf_local_out(unsigned int hook, struct sk_buff **pskb,
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/* PF_BRIDGE/POST_ROUTING ********************************************/
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static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff **pskb,
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const struct net_device *in, const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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const struct net_device *in,
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const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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{
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struct sk_buff *skb = *pskb;
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struct nf_bridge_info *nf_bridge = (*pskb)->nf_bridge;
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@ -752,7 +761,7 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff **pskb,
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* keep the check just to be sure... */
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if (skb->mac.raw < skb->head || skb->mac.raw + ETH_HLEN > skb->data) {
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printk(KERN_CRIT "br_netfilter: Argh!! br_nf_post_routing: "
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"bad mac.raw pointer.");
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"bad mac.raw pointer.");
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goto print_error;
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}
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#endif
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@ -794,7 +803,7 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff **pskb,
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realoutdev = nf_bridge->netoutdev;
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#endif
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NF_HOOK(pf, NF_IP_POST_ROUTING, skb, NULL, realoutdev,
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br_dev_queue_push_xmit);
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br_dev_queue_push_xmit);
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return NF_STOLEN;
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@ -806,18 +815,18 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff **pskb,
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printk("[%s]", realoutdev->name);
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}
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printk(" head:%p, raw:%p, data:%p\n", skb->head, skb->mac.raw,
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skb->data);
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skb->data);
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return NF_ACCEPT;
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#endif
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}
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/* IP/SABOTAGE *****************************************************/
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/* Don't hand locally destined packets to PF_INET(6)/PRE_ROUTING
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* for the second time. */
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static unsigned int ip_sabotage_in(unsigned int hook, struct sk_buff **pskb,
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const struct net_device *in, const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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const struct net_device *in,
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const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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{
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if ((*pskb)->nf_bridge &&
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!((*pskb)->nf_bridge->mask & BRNF_NF_BRIDGE_PREROUTING)) {
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@ -831,18 +840,18 @@ static unsigned int ip_sabotage_in(unsigned int hook, struct sk_buff **pskb,
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* and PF_INET(6)/POST_ROUTING until we have done the forwarding
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* decision in the bridge code and have determined nf_bridge->physoutdev. */
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static unsigned int ip_sabotage_out(unsigned int hook, struct sk_buff **pskb,
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const struct net_device *in, const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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const struct net_device *in,
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const struct net_device *out,
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int (*okfn)(struct sk_buff *))
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{
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struct sk_buff *skb = *pskb;
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if ((out->hard_start_xmit == br_dev_xmit &&
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okfn != br_nf_forward_finish &&
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okfn != br_nf_local_out_finish &&
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okfn != br_dev_queue_push_xmit)
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okfn != br_nf_forward_finish &&
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okfn != br_nf_local_out_finish && okfn != br_dev_queue_push_xmit)
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#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
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|| ((out->priv_flags & IFF_802_1Q_VLAN) &&
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VLAN_DEV_INFO(out)->real_dev->hard_start_xmit == br_dev_xmit)
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VLAN_DEV_INFO(out)->real_dev->hard_start_xmit == br_dev_xmit)
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#endif
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) {
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struct nf_bridge_info *nf_bridge;
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@ -967,8 +976,8 @@ static struct nf_hook_ops br_nf_ops[] = {
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#ifdef CONFIG_SYSCTL
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static
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int brnf_sysctl_call_tables(ctl_table *ctl, int write, struct file * filp,
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void __user *buffer, size_t *lenp, loff_t *ppos)
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int brnf_sysctl_call_tables(ctl_table * ctl, int write, struct file *filp,
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void __user * buffer, size_t * lenp, loff_t * ppos)
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{
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int ret;
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@ -1055,7 +1064,8 @@ int br_netfilter_init(void)
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#ifdef CONFIG_SYSCTL
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brnf_sysctl_header = register_sysctl_table(brnf_net_table, 0);
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if (brnf_sysctl_header == NULL) {
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printk(KERN_WARNING "br_netfilter: can't register to sysctl.\n");
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printk(KERN_WARNING
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"br_netfilter: can't register to sysctl.\n");
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for (i = 0; i < ARRAY_SIZE(br_nf_ops); i++)
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nf_unregister_hook(&br_nf_ops[i]);
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return -EFAULT;
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