diff options
Diffstat (limited to 'net/ipv4/netfilter')
-rw-r--r-- | net/ipv4/netfilter/arp_tables.c | 22 | ||||
-rw-r--r-- | net/ipv4/netfilter/ip_queue.c | 7 | ||||
-rw-r--r-- | net/ipv4/netfilter/ip_tables.c | 46 | ||||
-rw-r--r-- | net/ipv4/netfilter/ipt_CLUSTERIP.c | 20 | ||||
-rw-r--r-- | net/ipv4/netfilter/ipt_ECN.c | 8 | ||||
-rw-r--r-- | net/ipv4/netfilter/ipt_LOG.c | 22 | ||||
-rw-r--r-- | net/ipv4/netfilter/ipt_MASQUERADE.c | 4 | ||||
-rw-r--r-- | net/ipv4/netfilter/ipt_REJECT.c | 4 | ||||
-rw-r--r-- | net/ipv4/netfilter/ipt_ULOG.c | 6 | ||||
-rw-r--r-- | net/ipv4/netfilter/ipt_ecn.c | 4 | ||||
-rw-r--r-- | net/ipv4/netfilter/iptable_mangle.c | 4 | ||||
-rw-r--r-- | net/ipv4/netfilter/iptable_security.c | 4 | ||||
-rw-r--r-- | net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c | 8 | ||||
-rw-r--r-- | net/ipv4/netfilter/nf_conntrack_proto_icmp.c | 28 | ||||
-rw-r--r-- | net/ipv4/netfilter/nf_nat_helper.c | 22 | ||||
-rw-r--r-- | net/ipv4/netfilter/nf_nat_standalone.c | 10 |
16 files changed, 107 insertions, 112 deletions
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c index 27774c9..0663276 100644 --- a/net/ipv4/netfilter/arp_tables.c +++ b/net/ipv4/netfilter/arp_tables.c @@ -384,11 +384,11 @@ static int mark_source_chains(struct xt_table_info *newinfo, |= ((1 << hook) | (1 << NF_ARP_NUMHOOKS)); /* Unconditional return/END. */ - if ((e->target_offset == sizeof(struct arpt_entry) - && (strcmp(t->target.u.user.name, - ARPT_STANDARD_TARGET) == 0) - && t->verdict < 0 - && unconditional(&e->arp)) || visited) { + if ((e->target_offset == sizeof(struct arpt_entry) && + (strcmp(t->target.u.user.name, + ARPT_STANDARD_TARGET) == 0) && + t->verdict < 0 && unconditional(&e->arp)) || + visited) { unsigned int oldpos, size; if ((strcmp(t->target.u.user.name, @@ -427,8 +427,8 @@ static int mark_source_chains(struct xt_table_info *newinfo, int newpos = t->verdict; if (strcmp(t->target.u.user.name, - ARPT_STANDARD_TARGET) == 0 - && newpos >= 0) { + ARPT_STANDARD_TARGET) == 0 && + newpos >= 0) { if (newpos > newinfo->size - sizeof(struct arpt_entry)) { duprintf("mark_source_chains: " @@ -559,8 +559,8 @@ static inline int check_entry_size_and_hooks(struct arpt_entry *e, { unsigned int h; - if ((unsigned long)e % __alignof__(struct arpt_entry) != 0 - || (unsigned char *)e + sizeof(struct arpt_entry) >= limit) { + if ((unsigned long)e % __alignof__(struct arpt_entry) != 0 || + (unsigned char *)e + sizeof(struct arpt_entry) >= limit) { duprintf("Bad offset %p\n", e); return -EINVAL; } @@ -1251,8 +1251,8 @@ check_compat_entry_size_and_hooks(struct compat_arpt_entry *e, int ret, off, h; duprintf("check_compat_entry_size_and_hooks %p\n", e); - if ((unsigned long)e % __alignof__(struct compat_arpt_entry) != 0 - || (unsigned char *)e + sizeof(struct compat_arpt_entry) >= limit) { + if ((unsigned long)e % __alignof__(struct compat_arpt_entry) != 0 || + (unsigned char *)e + sizeof(struct compat_arpt_entry) >= limit) { duprintf("Bad offset %p, limit = %p\n", e, limit); return -EINVAL; } diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c index c9f90e8..2855f1f 100644 --- a/net/ipv4/netfilter/ip_queue.c +++ b/net/ipv4/netfilter/ip_queue.c @@ -497,10 +497,9 @@ ipq_rcv_nl_event(struct notifier_block *this, { struct netlink_notify *n = ptr; - if (event == NETLINK_URELEASE && - n->protocol == NETLINK_FIREWALL && n->pid) { + if (event == NETLINK_URELEASE && n->protocol == NETLINK_FIREWALL) { write_lock_bh(&queue_lock); - if ((n->net == &init_net) && (n->pid == peer_pid)) + if ((net_eq(n->net, &init_net)) && (n->pid == peer_pid)) __ipq_reset(); write_unlock_bh(&queue_lock); } @@ -621,7 +620,7 @@ cleanup_netlink_notifier: static void __exit ip_queue_fini(void) { nf_unregister_queue_handlers(&nfqh); - synchronize_net(); + ipq_flush(NULL, 0); #ifdef CONFIG_SYSCTL diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c index cde755d..572330a 100644 --- a/net/ipv4/netfilter/ip_tables.c +++ b/net/ipv4/netfilter/ip_tables.c @@ -89,9 +89,9 @@ ip_packet_match(const struct iphdr *ip, #define FWINV(bool, invflg) ((bool) ^ !!(ipinfo->invflags & (invflg))) if (FWINV((ip->saddr&ipinfo->smsk.s_addr) != ipinfo->src.s_addr, - IPT_INV_SRCIP) - || FWINV((ip->daddr&ipinfo->dmsk.s_addr) != ipinfo->dst.s_addr, - IPT_INV_DSTIP)) { + IPT_INV_SRCIP) || + FWINV((ip->daddr&ipinfo->dmsk.s_addr) != ipinfo->dst.s_addr, + IPT_INV_DSTIP)) { dprintf("Source or dest mismatch.\n"); dprintf("SRC: %pI4. Mask: %pI4. Target: %pI4.%s\n", @@ -122,8 +122,8 @@ ip_packet_match(const struct iphdr *ip, } /* Check specific protocol */ - if (ipinfo->proto - && FWINV(ip->protocol != ipinfo->proto, IPT_INV_PROTO)) { + if (ipinfo->proto && + FWINV(ip->protocol != ipinfo->proto, IPT_INV_PROTO)) { dprintf("Packet protocol %hi does not match %hi.%s\n", ip->protocol, ipinfo->proto, ipinfo->invflags&IPT_INV_PROTO ? " (INV)":""); @@ -246,11 +246,11 @@ get_chainname_rulenum(struct ipt_entry *s, struct ipt_entry *e, } else if (s == e) { (*rulenum)++; - if (s->target_offset == sizeof(struct ipt_entry) - && strcmp(t->target.u.kernel.target->name, - IPT_STANDARD_TARGET) == 0 - && t->verdict < 0 - && unconditional(&s->ip)) { + if (s->target_offset == sizeof(struct ipt_entry) && + strcmp(t->target.u.kernel.target->name, + IPT_STANDARD_TARGET) == 0 && + t->verdict < 0 && + unconditional(&s->ip)) { /* Tail of chains: STANDARD target (return/policy) */ *comment = *chainname == hookname ? comments[NF_IP_TRACE_COMMENT_POLICY] @@ -388,8 +388,8 @@ ipt_do_table(struct sk_buff *skb, back = get_entry(table_base, back->comefrom); continue; } - if (table_base + v != ipt_next_entry(e) - && !(e->ip.flags & IPT_F_GOTO)) { + if (table_base + v != ipt_next_entry(e) && + !(e->ip.flags & IPT_F_GOTO)) { /* Save old back ptr in next entry */ struct ipt_entry *next = ipt_next_entry(e); next->comefrom = (void *)back - table_base; @@ -473,11 +473,11 @@ mark_source_chains(struct xt_table_info *newinfo, e->comefrom |= ((1 << hook) | (1 << NF_INET_NUMHOOKS)); /* Unconditional return/END. */ - if ((e->target_offset == sizeof(struct ipt_entry) - && (strcmp(t->target.u.user.name, - IPT_STANDARD_TARGET) == 0) - && t->verdict < 0 - && unconditional(&e->ip)) || visited) { + if ((e->target_offset == sizeof(struct ipt_entry) && + (strcmp(t->target.u.user.name, + IPT_STANDARD_TARGET) == 0) && + t->verdict < 0 && unconditional(&e->ip)) || + visited) { unsigned int oldpos, size; if ((strcmp(t->target.u.user.name, @@ -524,8 +524,8 @@ mark_source_chains(struct xt_table_info *newinfo, int newpos = t->verdict; if (strcmp(t->target.u.user.name, - IPT_STANDARD_TARGET) == 0 - && newpos >= 0) { + IPT_STANDARD_TARGET) == 0 && + newpos >= 0) { if (newpos > newinfo->size - sizeof(struct ipt_entry)) { duprintf("mark_source_chains: " @@ -735,8 +735,8 @@ check_entry_size_and_hooks(struct ipt_entry *e, { unsigned int h; - if ((unsigned long)e % __alignof__(struct ipt_entry) != 0 - || (unsigned char *)e + sizeof(struct ipt_entry) >= limit) { + if ((unsigned long)e % __alignof__(struct ipt_entry) != 0 || + (unsigned char *)e + sizeof(struct ipt_entry) >= limit) { duprintf("Bad offset %p\n", e); return -EINVAL; } @@ -1548,8 +1548,8 @@ check_compat_entry_size_and_hooks(struct compat_ipt_entry *e, int ret, off, h; duprintf("check_compat_entry_size_and_hooks %p\n", e); - if ((unsigned long)e % __alignof__(struct compat_ipt_entry) != 0 - || (unsigned char *)e + sizeof(struct compat_ipt_entry) >= limit) { + if ((unsigned long)e % __alignof__(struct compat_ipt_entry) != 0 || + (unsigned char *)e + sizeof(struct compat_ipt_entry) >= limit) { duprintf("Bad offset %p, limit = %p\n", e, limit); return -EINVAL; } diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c index 2e4f98b..40ca2d2 100644 --- a/net/ipv4/netfilter/ipt_CLUSTERIP.c +++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c @@ -303,9 +303,9 @@ clusterip_tg(struct sk_buff *skb, const struct xt_target_param *par) /* special case: ICMP error handling. conntrack distinguishes between * error messages (RELATED) and information requests (see below) */ - if (ip_hdr(skb)->protocol == IPPROTO_ICMP - && (ctinfo == IP_CT_RELATED - || ctinfo == IP_CT_RELATED+IP_CT_IS_REPLY)) + if (ip_hdr(skb)->protocol == IPPROTO_ICMP && + (ctinfo == IP_CT_RELATED || + ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY)) return XT_CONTINUE; /* ip_conntrack_icmp guarantees us that we only have ICMP_ECHO, @@ -362,8 +362,8 @@ static bool clusterip_tg_check(const struct xt_tgchk_param *par) return false; } - if (e->ip.dmsk.s_addr != htonl(0xffffffff) - || e->ip.dst.s_addr == 0) { + if (e->ip.dmsk.s_addr != htonl(0xffffffff) || + e->ip.dst.s_addr == 0) { printk(KERN_ERR "CLUSTERIP: Please specify destination IP\n"); return false; } @@ -495,14 +495,14 @@ arp_mangle(unsigned int hook, struct clusterip_config *c; /* we don't care about non-ethernet and non-ipv4 ARP */ - if (arp->ar_hrd != htons(ARPHRD_ETHER) - || arp->ar_pro != htons(ETH_P_IP) - || arp->ar_pln != 4 || arp->ar_hln != ETH_ALEN) + if (arp->ar_hrd != htons(ARPHRD_ETHER) || + arp->ar_pro != htons(ETH_P_IP) || + arp->ar_pln != 4 || arp->ar_hln != ETH_ALEN) return NF_ACCEPT; /* we only want to mangle arp requests and replies */ - if (arp->ar_op != htons(ARPOP_REPLY) - && arp->ar_op != htons(ARPOP_REQUEST)) + if (arp->ar_op != htons(ARPOP_REPLY) && + arp->ar_op != htons(ARPOP_REQUEST)) return NF_ACCEPT; payload = (void *)(arp+1); diff --git a/net/ipv4/netfilter/ipt_ECN.c b/net/ipv4/netfilter/ipt_ECN.c index f7e2fa0..549e206 100644 --- a/net/ipv4/netfilter/ipt_ECN.c +++ b/net/ipv4/netfilter/ipt_ECN.c @@ -85,8 +85,8 @@ ecn_tg(struct sk_buff *skb, const struct xt_target_param *par) if (!set_ect_ip(skb, einfo)) return NF_DROP; - if (einfo->operation & (IPT_ECN_OP_SET_ECE | IPT_ECN_OP_SET_CWR) - && ip_hdr(skb)->protocol == IPPROTO_TCP) + if (einfo->operation & (IPT_ECN_OP_SET_ECE | IPT_ECN_OP_SET_CWR) && + ip_hdr(skb)->protocol == IPPROTO_TCP) if (!set_ect_tcp(skb, einfo)) return NF_DROP; @@ -108,8 +108,8 @@ static bool ecn_tg_check(const struct xt_tgchk_param *par) einfo->ip_ect); return false; } - if ((einfo->operation & (IPT_ECN_OP_SET_ECE|IPT_ECN_OP_SET_CWR)) - && (e->ip.proto != IPPROTO_TCP || (e->ip.invflags & XT_INV_PROTO))) { + if ((einfo->operation & (IPT_ECN_OP_SET_ECE|IPT_ECN_OP_SET_CWR)) && + (e->ip.proto != IPPROTO_TCP || (e->ip.invflags & XT_INV_PROTO))) { printk(KERN_WARNING "ECN: cannot use TCP operations on a " "non-tcp rule\n"); return false; diff --git a/net/ipv4/netfilter/ipt_LOG.c b/net/ipv4/netfilter/ipt_LOG.c index acc44c6..ee128ef 100644 --- a/net/ipv4/netfilter/ipt_LOG.c +++ b/net/ipv4/netfilter/ipt_LOG.c @@ -74,8 +74,8 @@ static void dump_packet(const struct nf_loginfo *info, if (ntohs(ih->frag_off) & IP_OFFSET) printk("FRAG:%u ", ntohs(ih->frag_off) & IP_OFFSET); - if ((logflags & IPT_LOG_IPOPT) - && ih->ihl * 4 > sizeof(struct iphdr)) { + if ((logflags & IPT_LOG_IPOPT) && + ih->ihl * 4 > sizeof(struct iphdr)) { const unsigned char *op; unsigned char _opt[4 * 15 - sizeof(struct iphdr)]; unsigned int i, optsize; @@ -146,8 +146,8 @@ static void dump_packet(const struct nf_loginfo *info, /* Max length: 11 "URGP=65535 " */ printk("URGP=%u ", ntohs(th->urg_ptr)); - if ((logflags & IPT_LOG_TCPOPT) - && th->doff * 4 > sizeof(struct tcphdr)) { + if ((logflags & IPT_LOG_TCPOPT) && + th->doff * 4 > sizeof(struct tcphdr)) { unsigned char _opt[4 * 15 - sizeof(struct tcphdr)]; const unsigned char *op; unsigned int i, optsize; @@ -238,9 +238,9 @@ static void dump_packet(const struct nf_loginfo *info, printk("TYPE=%u CODE=%u ", ich->type, ich->code); /* Max length: 25 "INCOMPLETE [65535 bytes] " */ - if (ich->type <= NR_ICMP_TYPES - && required_len[ich->type] - && skb->len-iphoff-ih->ihl*4 < required_len[ich->type]) { + if (ich->type <= NR_ICMP_TYPES && + required_len[ich->type] && + skb->len-iphoff-ih->ihl*4 < required_len[ich->type]) { printk("INCOMPLETE [%u bytes] ", skb->len - iphoff - ih->ihl*4); break; @@ -276,8 +276,8 @@ static void dump_packet(const struct nf_loginfo *info, } /* Max length: 10 "MTU=65535 " */ - if (ich->type == ICMP_DEST_UNREACH - && ich->code == ICMP_FRAG_NEEDED) + if (ich->type == ICMP_DEST_UNREACH && + ich->code == ICMP_FRAG_NEEDED) printk("MTU=%u ", ntohs(ich->un.frag.mtu)); } break; @@ -407,8 +407,8 @@ ipt_log_packet(u_int8_t pf, if (in && !out) { /* MAC logging for input chain only. */ printk("MAC="); - if (skb->dev && skb->dev->hard_header_len - && skb->mac_header != skb->network_header) { + if (skb->dev && skb->dev->hard_header_len && + skb->mac_header != skb->network_header) { int i; const unsigned char *p = skb_mac_header(skb); for (i = 0; i < skb->dev->hard_header_len; i++,p++) diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c index dada086..650b540 100644 --- a/net/ipv4/netfilter/ipt_MASQUERADE.c +++ b/net/ipv4/netfilter/ipt_MASQUERADE.c @@ -59,8 +59,8 @@ masquerade_tg(struct sk_buff *skb, const struct xt_target_param *par) ct = nf_ct_get(skb, &ctinfo); nat = nfct_nat(ct); - NF_CT_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED - || ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY)); + NF_CT_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED || + ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY)); /* Source address is 0.0.0.0 - locally generated packet that is * probably not supposed to be masqueraded. diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c index c93ae44..5113b8f 100644 --- a/net/ipv4/netfilter/ipt_REJECT.c +++ b/net/ipv4/netfilter/ipt_REJECT.c @@ -184,8 +184,8 @@ static bool reject_tg_check(const struct xt_tgchk_param *par) return false; } else if (rejinfo->with == IPT_TCP_RESET) { /* Must specify that it's a TCP packet */ - if (e->ip.proto != IPPROTO_TCP - || (e->ip.invflags & XT_INV_PROTO)) { + if (e->ip.proto != IPPROTO_TCP || + (e->ip.invflags & XT_INV_PROTO)) { printk("ipt_REJECT: TCP_RESET invalid for non-tcp\n"); return false; } diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c index d32cc4b..399061c 100644 --- a/net/ipv4/netfilter/ipt_ULOG.c +++ b/net/ipv4/netfilter/ipt_ULOG.c @@ -226,9 +226,9 @@ static void ipt_ulog_packet(unsigned int hooknum, else *(pm->prefix) = '\0'; - if (in && in->hard_header_len > 0 - && skb->mac_header != skb->network_header - && in->hard_header_len <= ULOG_MAC_LEN) { + if (in && in->hard_header_len > 0 && + skb->mac_header != skb->network_header && + in->hard_header_len <= ULOG_MAC_LEN) { memcpy(pm->mac, skb_mac_header(skb), in->hard_header_len); pm->mac_len = in->hard_header_len; } else diff --git a/net/ipv4/netfilter/ipt_ecn.c b/net/ipv4/netfilter/ipt_ecn.c index 6289b64..2a1e56b 100644 --- a/net/ipv4/netfilter/ipt_ecn.c +++ b/net/ipv4/netfilter/ipt_ecn.c @@ -96,8 +96,8 @@ static bool ecn_mt_check(const struct xt_mtchk_param *par) if (info->invert & IPT_ECN_OP_MATCH_MASK) return false; - if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR) - && ip->proto != IPPROTO_TCP) { + if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR) && + ip->proto != IPPROTO_TCP) { printk(KERN_WARNING "ipt_ecn: can't match TCP bits in rule for" " non-tcp packets\n"); return false; diff --git a/net/ipv4/netfilter/iptable_mangle.c b/net/ipv4/netfilter/iptable_mangle.c index 036047f..fae78c3 100644 --- a/net/ipv4/netfilter/iptable_mangle.c +++ b/net/ipv4/netfilter/iptable_mangle.c @@ -130,8 +130,8 @@ ipt_local_hook(unsigned int hook, u_int32_t mark; /* root is playing with raw sockets. */ - if (skb->len < sizeof(struct iphdr) - || ip_hdrlen(skb) < sizeof(struct iphdr)) + if (skb->len < sizeof(struct iphdr) || + ip_hdrlen(skb) < sizeof(struct iphdr)) return NF_ACCEPT; /* Save things which could affect route */ diff --git a/net/ipv4/netfilter/iptable_security.c b/net/ipv4/netfilter/iptable_security.c index 99eb76c6..3bd3d63 100644 --- a/net/ipv4/netfilter/iptable_security.c +++ b/net/ipv4/netfilter/iptable_security.c @@ -94,8 +94,8 @@ ipt_local_out_hook(unsigned int hook, int (*okfn)(struct sk_buff *)) { /* Somebody is playing with raw sockets. */ - if (skb->len < sizeof(struct iphdr) - || ip_hdrlen(skb) < sizeof(struct iphdr)) + if (skb->len < sizeof(struct iphdr) || + ip_hdrlen(skb) < sizeof(struct iphdr)) return NF_ACCEPT; return ipt_do_table(skb, hook, in, out, dev_net(out)->ipv4.iptable_security); diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c index 092d68f..d171b12 100644 --- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c +++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c @@ -247,10 +247,10 @@ getorigdst(struct sock *sk, int optval, void __user *user, int *len) struct nf_conntrack_tuple tuple; memset(&tuple, 0, sizeof(tuple)); - tuple.src.u3.ip = inet->rcv_saddr; - tuple.src.u.tcp.port = inet->sport; - tuple.dst.u3.ip = inet->daddr; - tuple.dst.u.tcp.port = inet->dport; + tuple.src.u3.ip = inet->inet_rcv_saddr; + tuple.src.u.tcp.port = inet->inet_sport; + tuple.dst.u3.ip = inet->inet_daddr; + tuple.dst.u.tcp.port = inet->inet_dport; tuple.src.l3num = PF_INET; tuple.dst.protonum = sk->sk_protocol; diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c index 9072058..7afd39b 100644 --- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c +++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c @@ -54,8 +54,8 @@ static const u_int8_t invmap[] = { static bool icmp_invert_tuple(struct nf_conntrack_tuple *tuple, const struct nf_conntrack_tuple *orig) { - if (orig->dst.u.icmp.type >= sizeof(invmap) - || !invmap[orig->dst.u.icmp.type]) + if (orig->dst.u.icmp.type >= sizeof(invmap) || + !invmap[orig->dst.u.icmp.type]) return false; tuple->src.u.icmp.id = orig->src.u.icmp.id; @@ -101,8 +101,8 @@ static bool icmp_new(struct nf_conn *ct, const struct sk_buff *skb, [ICMP_ADDRESS] = 1 }; - if (ct->tuplehash[0].tuple.dst.u.icmp.type >= sizeof(valid_new) - || !valid_new[ct->tuplehash[0].tuple.dst.u.icmp.type]) { + if (ct->tuplehash[0].tuple.dst.u.icmp.type >= sizeof(valid_new) || + !valid_new[ct->tuplehash[0].tuple.dst.u.icmp.type]) { /* Can't create a new ICMP `conn' with this. */ pr_debug("icmp: can't create new conn with type %u\n", ct->tuplehash[0].tuple.dst.u.icmp.type); @@ -201,11 +201,11 @@ icmp_error(struct net *net, struct sk_buff *skb, unsigned int dataoff, } /* Need to track icmp error message? */ - if (icmph->type != ICMP_DEST_UNREACH - && icmph->type != ICMP_SOURCE_QUENCH - && icmph->type != ICMP_TIME_EXCEEDED - && icmph->type != ICMP_PARAMETERPROB - && icmph->type != ICMP_REDIRECT) + if (icmph->type != ICMP_DEST_UNREACH && + icmph->type != ICMP_SOURCE_QUENCH && + icmph->type != ICMP_TIME_EXCEEDED && + icmph->type != ICMP_PARAMETERPROB && + icmph->type != ICMP_REDIRECT) return NF_ACCEPT; return icmp_error_message(net, skb, ctinfo, hooknum); @@ -238,17 +238,17 @@ static const struct nla_policy icmp_nla_policy[CTA_PROTO_MAX+1] = { static int icmp_nlattr_to_tuple(struct nlattr *tb[], struct nf_conntrack_tuple *tuple) { - if (!tb[CTA_PROTO_ICMP_TYPE] - || !tb[CTA_PROTO_ICMP_CODE] - || !tb[CTA_PROTO_ICMP_ID]) + if (!tb[CTA_PROTO_ICMP_TYPE] || + !tb[CTA_PROTO_ICMP_CODE] || + !tb[CTA_PROTO_ICMP_ID]) return -EINVAL; tuple->dst.u.icmp.type = nla_get_u8(tb[CTA_PROTO_ICMP_TYPE]); tuple->dst.u.icmp.code = nla_get_u8(tb[CTA_PROTO_ICMP_CODE]); tuple->src.u.icmp.id = nla_get_be16(tb[CTA_PROTO_ICMP_ID]); - if (tuple->dst.u.icmp.type >= sizeof(invmap) - || !invmap[tuple->dst.u.icmp.type]) + if (tuple->dst.u.icmp.type >= sizeof(invmap) || + !invmap[tuple->dst.u.icmp.type]) return -EINVAL; return 0; diff --git a/net/ipv4/netfilter/nf_nat_helper.c b/net/ipv4/netfilter/nf_nat_helper.c index f9520fa..7f10a6b 100644 --- a/net/ipv4/netfilter/nf_nat_helper.c +++ b/net/ipv4/netfilter/nf_nat_helper.c @@ -41,18 +41,14 @@ adjust_tcp_sequence(u32 seq, struct nf_conn *ct, enum ip_conntrack_info ctinfo) { - int dir; - struct nf_nat_seq *this_way, *other_way; + enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); struct nf_conn_nat *nat = nfct_nat(ct); + struct nf_nat_seq *this_way = &nat->seq[dir]; - pr_debug("adjust_tcp_sequence: seq = %u, sizediff = %d\n", seq, seq); - - dir = CTINFO2DIR(ctinfo); - - this_way = &nat->seq[dir]; - other_way = &nat->seq[!dir]; + pr_debug("adjust_tcp_sequence: seq = %u, sizediff = %d\n", + seq, sizediff); - pr_debug("nf_nat_resize_packet: Seq_offset before: "); + pr_debug("adjust_tcp_sequence: Seq_offset before: "); DUMP_OFFSET(this_way); spin_lock_bh(&nf_nat_seqofs_lock); @@ -63,13 +59,13 @@ adjust_tcp_sequence(u32 seq, * retransmit */ if (this_way->offset_before == this_way->offset_after || before(this_way->correction_pos, seq)) { - this_way->correction_pos = seq; - this_way->offset_before = this_way->offset_after; - this_way->offset_after += sizediff; + this_way->correction_pos = seq; + this_way->offset_before = this_way->offset_after; + this_way->offset_after += sizediff; } spin_unlock_bh(&nf_nat_seqofs_lock); - pr_debug("nf_nat_resize_packet: Seq_offset after: "); + pr_debug("adjust_tcp_sequence: Seq_offset after: "); DUMP_OFFSET(this_way); } diff --git a/net/ipv4/netfilter/nf_nat_standalone.c b/net/ipv4/netfilter/nf_nat_standalone.c index 5f41d01..5678e95 100644 --- a/net/ipv4/netfilter/nf_nat_standalone.c +++ b/net/ipv4/netfilter/nf_nat_standalone.c @@ -197,11 +197,11 @@ nf_nat_out(unsigned int hooknum, (ct = nf_ct_get(skb, &ctinfo)) != NULL) { enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); - if (ct->tuplehash[dir].tuple.src.u3.ip != - ct->tuplehash[!dir].tuple.dst.u3.ip - || ct->tuplehash[dir].tuple.src.u.all != - ct->tuplehash[!dir].tuple.dst.u.all - ) + if ((ct->tuplehash[dir].tuple.src.u3.ip != + ct->tuplehash[!dir].tuple.dst.u3.ip) || + (ct->tuplehash[dir].tuple.src.u.all != + ct->tuplehash[!dir].tuple.dst.u.all) + ) return ip_xfrm_me_harder(skb) == 0 ? ret : NF_DROP; } #endif |