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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6

Browse Source
This commit is contained in:
David S. Miller
2009-09-10 18:17:09 -07:00
parent ec282e9225 8a56df0ae1
commit 9a0da0d19c
107 changed files with 373 additions and 1856 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
net/bridge/br_netfilter.c
View File

@ -359,7 +359,7 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
},
.proto = 0,
};
struct in_device *in_dev = in_dev_get(dev);
struct in_device *in_dev = __in_dev_get_rcu(dev);
/* If err equals -EHOSTUNREACH the error is due to a
* martian destination or due to the fact that

29
net/bridge/netfilter/ebt_log.c
View File

@ -50,14 +50,6 @@ struct arppayload
unsigned char ip_dst[4];
};
static void print_MAC(const unsigned char *p)
{
int i;
for (i = 0; i < ETH_ALEN; i++, p++)
printk("%02x%c", *p, i == ETH_ALEN - 1 ? ' ':':');
}
static void
print_ports(const struct sk_buff *skb, uint8_t protocol, int offset)
{
@ -88,14 +80,11 @@ ebt_log_packet(u_int8_t pf, unsigned int hooknum,
unsigned int bitmask;
spin_lock_bh(&ebt_log_lock);
printk("<%c>%s IN=%s OUT=%s MAC source = ", '0' + loginfo->u.log.level,
prefix, in ? in->name : "", out ? out->name : "");
print_MAC(eth_hdr(skb)->h_source);
printk("MAC dest = ");
print_MAC(eth_hdr(skb)->h_dest);
printk("proto = 0x%04x", ntohs(eth_hdr(skb)->h_proto));
printk("<%c>%s IN=%s OUT=%s MAC source = %pM MAC dest = %pM proto = 0x%04x",
'0' + loginfo->u.log.level, prefix,
in ? in->name : "", out ? out->name : "",
eth_hdr(skb)->h_source, eth_hdr(skb)->h_dest,
ntohs(eth_hdr(skb)->h_proto));
if (loginfo->type == NF_LOG_TYPE_LOG)
bitmask = loginfo->u.log.logflags;
@ -171,12 +160,8 @@ ebt_log_packet(u_int8_t pf, unsigned int hooknum,
printk(" INCOMPLETE ARP payload");
goto out;
}
printk(" ARP MAC SRC=");
print_MAC(ap->mac_src);
printk(" ARP IP SRC=%pI4", ap->ip_src);
printk(" ARP MAC DST=");
print_MAC(ap->mac_dst);
printk(" ARP IP DST=%pI4", ap->ip_dst);
printk(" ARP MAC SRC=%pM ARP IP SRC=%pI4 ARP MAC DST=%pM ARP IP DST=%pI4",
ap->mac_src, ap->ip_src, ap->mac_dst, ap->ip_dst);
}
}
out:

2
net/bridge/netfilter/ebt_ulog.c
View File

@ -266,7 +266,7 @@ static bool ebt_ulog_tg_check(const struct xt_tgchk_param *par)
if (uloginfo->qthreshold > EBT_ULOG_MAX_QLEN)
uloginfo->qthreshold = EBT_ULOG_MAX_QLEN;
return 0;
return true;
}
static struct xt_target ebt_ulog_tg_reg __read_mostly = {

2
net/bridge/netfilter/ebtable_broute.c
View File

@ -41,7 +41,7 @@ static int check(const struct ebt_table_info *info, unsigned int valid_hooks)
return 0;
}
static struct ebt_table broute_table =
static const struct ebt_table broute_table =
{
.name = "broute",
.table = &initial_table,

8
net/bridge/netfilter/ebtable_filter.c
View File

@ -50,7 +50,7 @@ static int check(const struct ebt_table_info *info, unsigned int valid_hooks)
return 0;
}
static struct ebt_table frame_filter =
static const struct ebt_table frame_filter =
{
.name = "filter",
.table = &initial_table,
@ -77,21 +77,21 @@ static struct nf_hook_ops ebt_ops_filter[] __read_mostly = {
{
.hook = ebt_in_hook,
.owner = THIS_MODULE,
.pf = PF_BRIDGE,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_LOCAL_IN,
.priority = NF_BR_PRI_FILTER_BRIDGED,
},
{
.hook = ebt_in_hook,
.owner = THIS_MODULE,
.pf = PF_BRIDGE,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_FORWARD,
.priority = NF_BR_PRI_FILTER_BRIDGED,
},
{
.hook = ebt_out_hook,
.owner = THIS_MODULE,
.pf = PF_BRIDGE,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_LOCAL_OUT,
.priority = NF_BR_PRI_FILTER_OTHER,
},

6
net/bridge/netfilter/ebtable_nat.c
View File

@ -77,21 +77,21 @@ static struct nf_hook_ops ebt_ops_nat[] __read_mostly = {
{
.hook = ebt_nat_out,
.owner = THIS_MODULE,
.pf = PF_BRIDGE,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_LOCAL_OUT,
.priority = NF_BR_PRI_NAT_DST_OTHER,
},
{
.hook = ebt_nat_out,
.owner = THIS_MODULE,
.pf = PF_BRIDGE,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_POST_ROUTING,
.priority = NF_BR_PRI_NAT_SRC,
},
{
.hook = ebt_nat_in,
.owner = THIS_MODULE,
.pf = PF_BRIDGE,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_PRE_ROUTING,
.priority = NF_BR_PRI_NAT_DST_BRIDGED,
},

13
net/bridge/netfilter/ebtables.c
View File

@ -1103,23 +1103,24 @@ free_newinfo:
return ret;
}
struct ebt_table *ebt_register_table(struct net *net, struct ebt_table *table)
struct ebt_table *
ebt_register_table(struct net *net, const struct ebt_table *input_table)
{
struct ebt_table_info *newinfo;
struct ebt_table *t;
struct ebt_table *t, *table;
struct ebt_replace_kernel *repl;
int ret, i, countersize;
void *p;
if (!table || !(repl = table->table) || !repl->entries ||
repl->entries_size == 0 ||
repl->counters || table->private) {
if (input_table == NULL || (repl = input_table->table) == NULL ||
repl->entries == 0 || repl->entries_size == 0 ||
repl->counters != NULL || input_table->private != NULL) {
BUGPRINT("Bad table data for ebt_register_table!!!\n");
return ERR_PTR(-EINVAL);
}
/* Don't add one table to multiple lists. */
table = kmemdup(table, sizeof(struct ebt_table), GFP_KERNEL);
table = kmemdup(input_table, sizeof(struct ebt_table), GFP_KERNEL);
if (!table) {
ret = -ENOMEM;
goto out;

47
net/ipv4/netfilter/arp_tables.c
View File

@ -8,7 +8,7 @@
* Copyright (C) 2002 David S. Miller (davem@redhat.com)
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
@ -341,15 +341,11 @@ unsigned int arpt_do_table(struct sk_buff *skb,
}
/* All zeroes == unconditional rule. */
static inline int unconditional(const struct arpt_arp *arp)
static inline bool unconditional(const struct arpt_arp *arp)
{
unsigned int i;
static const struct arpt_arp uncond;
for (i = 0; i < sizeof(*arp)/sizeof(__u32); i++)
if (((__u32 *)arp)[i])
return 0;
return 1;
return memcmp(arp, &uncond, sizeof(uncond)) == 0;
}
/* Figures out from what hook each rule can be called: returns 0 if
@ -537,12 +533,28 @@ out:
return ret;
}
static bool check_underflow(struct arpt_entry *e)
{
const struct arpt_entry_target *t;
unsigned int verdict;
if (!unconditional(&e->arp))
return false;
t = arpt_get_target(e);
if (strcmp(t->u.user.name, XT_STANDARD_TARGET) != 0)
return false;
verdict = ((struct arpt_standard_target *)t)->verdict;
verdict = -verdict - 1;
return verdict == NF_DROP || verdict == NF_ACCEPT;
}
static inline int check_entry_size_and_hooks(struct arpt_entry *e,
struct xt_table_info *newinfo,
unsigned char *base,
unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
unsigned int valid_hooks,
unsigned int *i)
{
unsigned int h;
@ -562,15 +574,21 @@ static inline int check_entry_size_and_hooks(struct arpt_entry *e,
/* Check hooks & underflows */
for (h = 0; h < NF_ARP_NUMHOOKS; h++) {
if (!(valid_hooks & (1 << h)))
continue;
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h])
if ((unsigned char *)e - base == underflows[h]) {
if (!check_underflow(e)) {
pr_err("Underflows must be unconditional and "
"use the STANDARD target with "
"ACCEPT/DROP\n");
return -EINVAL;
}
newinfo->underflow[h] = underflows[h];
}
}
/* FIXME: underflows must be unconditional, standard verdicts
< 0 (not ARPT_RETURN). --RR */
/* Clear counters and comefrom */
e->counters = ((struct xt_counters) { 0, 0 });
e->comefrom = 0;
@ -630,7 +648,7 @@ static int translate_table(const char *name,
newinfo,
entry0,
entry0 + size,
hook_entries, underflows, &i);
hook_entries, underflows, valid_hooks, &i);
duprintf("translate_table: ARPT_ENTRY_ITERATE gives %d\n", ret);
if (ret != 0)
return ret;
@ -1760,7 +1778,8 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
return ret;
}
struct xt_table *arpt_register_table(struct net *net, struct xt_table *table,
struct xt_table *arpt_register_table(struct net *net,
const struct xt_table *table,
const struct arpt_replace *repl)
{
int ret;

4
net/ipv4/netfilter/arptable_filter.c
View File

@ -15,7 +15,7 @@ MODULE_DESCRIPTION("arptables filter table");
#define FILTER_VALID_HOOKS ((1 << NF_ARP_IN) | (1 << NF_ARP_OUT) | \
(1 << NF_ARP_FORWARD))
static struct
static const struct
{
struct arpt_replace repl;
struct arpt_standard entries[3];
@ -45,7 +45,7 @@ static struct
.term = ARPT_ERROR_INIT,
};
static struct xt_table packet_filter = {
static const struct xt_table packet_filter = {
.name = "filter",
.valid_hooks = FILTER_VALID_HOOKS,
.me = THIS_MODULE,

51
net/ipv4/netfilter/ip_tables.c
View File

@ -8,6 +8,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/cache.h>
#include <linux/capability.h>
#include <linux/skbuff.h>
@ -190,16 +191,11 @@ get_entry(void *base, unsigned int offset)
/* All zeroes == unconditional rule. */
/* Mildly perf critical (only if packet tracing is on) */
static inline int
unconditional(const struct ipt_ip *ip)
static inline bool unconditional(const struct ipt_ip *ip)
{
unsigned int i;
static const struct ipt_ip uncond;
for (i = 0; i < sizeof(*ip)/sizeof(__u32); i++)
if (((__u32 *)ip)[i])
return 0;
return 1;
return memcmp(ip, &uncond, sizeof(uncond)) == 0;
#undef FWINV
}
@ -315,7 +311,6 @@ ipt_do_table(struct sk_buff *skb,
static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
const struct iphdr *ip;
u_int16_t datalen;
bool hotdrop = false;
/* Initializing verdict to NF_DROP keeps gcc happy. */
unsigned int verdict = NF_DROP;
@ -328,7 +323,6 @@ ipt_do_table(struct sk_buff *skb,
/* Initialization */
ip = ip_hdr(skb);
datalen = skb->len - ip->ihl * 4;
indev = in ? in->name : nulldevname;
outdev = out ? out->name : nulldevname;
/* We handle fragments by dealing with the first fragment as
@ -427,8 +421,6 @@ ipt_do_table(struct sk_buff *skb,
#endif
/* Target might have changed stuff. */
ip = ip_hdr(skb);
datalen = skb->len - ip->ihl * 4;
if (verdict == IPT_CONTINUE)
e = ipt_next_entry(e);
else
@ -716,6 +708,21 @@ find_check_entry(struct ipt_entry *e, const char *name, unsigned int size,
return ret;
}
static bool check_underflow(struct ipt_entry *e)
{
const struct ipt_entry_target *t;
unsigned int verdict;
if (!unconditional(&e->ip))
return false;
t = ipt_get_target(e);
if (strcmp(t->u.user.name, XT_STANDARD_TARGET) != 0)
return false;
verdict = ((struct ipt_standard_target *)t)->verdict;
verdict = -verdict - 1;
return verdict == NF_DROP || verdict == NF_ACCEPT;
}
static int
check_entry_size_and_hooks(struct ipt_entry *e,
struct xt_table_info *newinfo,
@ -723,6 +730,7 @@ check_entry_size_and_hooks(struct ipt_entry *e,
unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
unsigned int valid_hooks,
unsigned int *i)
{
unsigned int h;
@ -742,15 +750,21 @@ check_entry_size_and_hooks(struct ipt_entry *e,
/* Check hooks & underflows */
for (h = 0; h < NF_INET_NUMHOOKS; h++) {
if (!(valid_hooks & (1 << h)))
continue;
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h])
if ((unsigned char *)e - base == underflows[h]) {
if (!check_underflow(e)) {
pr_err("Underflows must be unconditional and "
"use the STANDARD target with "
"ACCEPT/DROP\n");
return -EINVAL;
}
newinfo->underflow[h] = underflows[h];
}
}
/* FIXME: underflows must be unconditional, standard verdicts
< 0 (not IPT_RETURN). --RR */
/* Clear counters and comefrom */
e->counters = ((struct xt_counters) { 0, 0 });
e->comefrom = 0;
@ -813,7 +827,7 @@ translate_table(const char *name,
newinfo,
entry0,
entry0 + size,
hook_entries, underflows, &i);
hook_entries, underflows, valid_hooks, &i);
if (ret != 0)
return ret;
@ -2051,7 +2065,8 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
return ret;
}
struct xt_table *ipt_register_table(struct net *net, struct xt_table *table,
struct xt_table *ipt_register_table(struct net *net,
const struct xt_table *table,
const struct ipt_replace *repl)
{
int ret;

10
net/ipv4/netfilter/iptable_filter.c
View File

@ -53,11 +53,11 @@ static struct
.term = IPT_ERROR_INIT, /* ERROR */
};
static struct xt_table packet_filter = {
static const struct xt_table packet_filter = {
.name = "filter",
.valid_hooks = FILTER_VALID_HOOKS,
.me = THIS_MODULE,
.af = AF_INET,
.af = NFPROTO_IPV4,
};
/* The work comes in here from netfilter.c. */
@ -102,21 +102,21 @@ static struct nf_hook_ops ipt_ops[] __read_mostly = {
{
.hook = ipt_local_in_hook,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_IN,
.priority = NF_IP_PRI_FILTER,
},
{
.hook = ipt_hook,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_FORWARD,
.priority = NF_IP_PRI_FILTER,
},
{
.hook = ipt_local_out_hook,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP_PRI_FILTER,
},

16
net/ipv4/netfilter/iptable_mangle.c
View File

@ -28,7 +28,7 @@ MODULE_DESCRIPTION("iptables mangle table");
(1 << NF_INET_POST_ROUTING))
/* Ouch - five different hooks? Maybe this should be a config option..... -- BC */
static struct
static const struct
{
struct ipt_replace repl;
struct ipt_standard entries[5];
@ -64,11 +64,11 @@ static struct
.term = IPT_ERROR_INIT, /* ERROR */
};
static struct xt_table packet_mangler = {
static const struct xt_table packet_mangler = {
.name = "mangle",
.valid_hooks = MANGLE_VALID_HOOKS,
.me = THIS_MODULE,
.af = AF_INET,
.af = NFPROTO_IPV4,
};
/* The work comes in here from netfilter.c. */
@ -162,35 +162,35 @@ static struct nf_hook_ops ipt_ops[] __read_mostly = {
{
.hook = ipt_pre_routing_hook,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_PRE_ROUTING,
.priority = NF_IP_PRI_MANGLE,
},
{
.hook = ipt_local_in_hook,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_IN,
.priority = NF_IP_PRI_MANGLE,
},
{
.hook = ipt_forward_hook,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_FORWARD,
.priority = NF_IP_PRI_MANGLE,
},
{
.hook = ipt_local_hook,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP_PRI_MANGLE,
},
{
.hook = ipt_post_routing_hook,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_POST_ROUTING,
.priority = NF_IP_PRI_MANGLE,
},

10
net/ipv4/netfilter/iptable_raw.c
View File

@ -9,7 +9,7 @@
#define RAW_VALID_HOOKS ((1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_OUT))
static struct
static const struct
{
struct ipt_replace repl;
struct ipt_standard entries[2];
@ -36,11 +36,11 @@ static struct
.term = IPT_ERROR_INIT, /* ERROR */
};
static struct xt_table packet_raw = {
static const struct xt_table packet_raw = {
.name = "raw",
.valid_hooks = RAW_VALID_HOOKS,
.me = THIS_MODULE,
.af = AF_INET,
.af = NFPROTO_IPV4,
};
/* The work comes in here from netfilter.c. */
@ -74,14 +74,14 @@ ipt_local_hook(unsigned int hook,
static struct nf_hook_ops ipt_ops[] __read_mostly = {
{
.hook = ipt_hook,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_PRE_ROUTING,
.priority = NF_IP_PRI_RAW,
.owner = THIS_MODULE,
},
{
.hook = ipt_local_hook,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP_PRI_RAW,
.owner = THIS_MODULE,

12
net/ipv4/netfilter/iptable_security.c
View File

@ -27,7 +27,7 @@ MODULE_DESCRIPTION("iptables security table, for MAC rules");
(1 << NF_INET_FORWARD) | \
(1 << NF_INET_LOCAL_OUT)
static struct
static const struct
{
struct ipt_replace repl;
struct ipt_standard entries[3];
@ -57,11 +57,11 @@ static struct
.term = IPT_ERROR_INIT, /* ERROR */
};
static struct xt_table security_table = {
static const struct xt_table security_table = {
.name = "security",
.valid_hooks = SECURITY_VALID_HOOKS,
.me = THIS_MODULE,
.af = AF_INET,
.af = NFPROTO_IPV4,
};
static unsigned int
@ -105,21 +105,21 @@ static struct nf_hook_ops ipt_ops[] __read_mostly = {
{
.hook = ipt_local_in_hook,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_IN,
.priority = NF_IP_PRI_SECURITY,
},
{
.hook = ipt_forward_hook,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_FORWARD,
.priority = NF_IP_PRI_SECURITY,
},
{
.hook = ipt_local_out_hook,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP_PRI_SECURITY,
},

22
net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
View File

@ -26,6 +26,7 @@
#include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
#include <net/netfilter/nf_nat_helper.h>
#include <net/netfilter/ipv4/nf_defrag_ipv4.h>
#include <net/netfilter/nf_log.h>
int (*nf_nat_seq_adjust_hook)(struct sk_buff *skb,
struct nf_conn *ct,
@ -113,8 +114,11 @@ static unsigned int ipv4_confirm(unsigned int hooknum,
ret = helper->help(skb, skb_network_offset(skb) + ip_hdrlen(skb),
ct, ctinfo);
if (ret != NF_ACCEPT)
if (ret != NF_ACCEPT) {
nf_log_packet(NFPROTO_IPV4, hooknum, skb, in, out, NULL,
"nf_ct_%s: dropping packet", helper->name);
return ret;
}
if (test_bit(IPS_SEQ_ADJUST_BIT, &ct->status)) {
typeof(nf_nat_seq_adjust_hook) seq_adjust;
@ -158,28 +162,28 @@ static struct nf_hook_ops ipv4_conntrack_ops[] __read_mostly = {
{
.hook = ipv4_conntrack_in,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_PRE_ROUTING,
.priority = NF_IP_PRI_CONNTRACK,
},
{
.hook = ipv4_conntrack_local,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP_PRI_CONNTRACK,
},
{
.hook = ipv4_confirm,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_POST_ROUTING,
.priority = NF_IP_PRI_CONNTRACK_CONFIRM,
},
{
.hook = ipv4_confirm,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_IN,
.priority = NF_IP_PRI_CONNTRACK_CONFIRM,
},
@ -256,11 +260,11 @@ getorigdst(struct sock *sk, int optval, void __user *user, int *len)
tuple.dst.u3.ip = inet->daddr;
tuple.dst.u.tcp.port = inet->dport;
tuple.src.l3num = PF_INET;
tuple.dst.protonum = IPPROTO_TCP;
tuple.dst.protonum = sk->sk_protocol;
/* We only do TCP at the moment: is there a better way? */
if (strcmp(sk->sk_prot->name, "TCP")) {
pr_debug("SO_ORIGINAL_DST: Not a TCP socket\n");
/* We only do TCP and SCTP at the moment: is there a better way? */
if (sk->sk_protocol != IPPROTO_TCP && sk->sk_protocol != IPPROTO_SCTP) {
pr_debug("SO_ORIGINAL_DST: Not a TCP/SCTP socket\n");
return -ENOPROTOOPT;
}

8
net/ipv4/netfilter/nf_nat_core.c
View File

@ -212,7 +212,7 @@ find_best_ips_proto(struct nf_conntrack_tuple *tuple,
maxip = ntohl(range->max_ip);
j = jhash_2words((__force u32)tuple->src.u3.ip,
range->flags & IP_NAT_RANGE_PERSISTENT ?
(__force u32)tuple->dst.u3.ip : 0, 0);
0 : (__force u32)tuple->dst.u3.ip, 0);
j = ((u64)j * (maxip - minip + 1)) >> 32;
*var_ipp = htonl(minip + j);
}
@ -620,7 +620,7 @@ static const struct nla_policy nat_nla_policy[CTA_NAT_MAX+1] = {
};
static int
nfnetlink_parse_nat(struct nlattr *nat,
nfnetlink_parse_nat(const struct nlattr *nat,
const struct nf_conn *ct, struct nf_nat_range *range)
{
struct nlattr *tb[CTA_NAT_MAX+1];
@ -656,7 +656,7 @@ nfnetlink_parse_nat(struct nlattr *nat,
static int
nfnetlink_parse_nat_setup(struct nf_conn *ct,
enum nf_nat_manip_type manip,
struct nlattr *attr)
const struct nlattr *attr)
{
struct nf_nat_range range;
@ -671,7 +671,7 @@ nfnetlink_parse_nat_setup(struct nf_conn *ct,
static int
nfnetlink_parse_nat_setup(struct nf_conn *ct,
enum nf_nat_manip_type manip,
struct nlattr *attr)
const struct nlattr *attr)
{
return -EOPNOTSUPP;
}

6
net/ipv4/netfilter/nf_nat_rule.c
View File

@ -28,7 +28,7 @@
(1 << NF_INET_POST_ROUTING) | \
(1 << NF_INET_LOCAL_OUT))
static struct
static const struct
{
struct ipt_replace repl;
struct ipt_standard entries[3];
@ -58,11 +58,11 @@ static struct
.term = IPT_ERROR_INIT, /* ERROR */
};
static struct xt_table nat_table = {
static const struct xt_table nat_table = {
.name = "nat",
.valid_hooks = NAT_VALID_HOOKS,
.me = THIS_MODULE,
.af = AF_INET,
.af = NFPROTO_IPV4,
};
/* Source NAT */

8
net/ipv4/netfilter/nf_nat_standalone.c
View File

@ -251,7 +251,7 @@ static struct nf_hook_ops nf_nat_ops[] __read_mostly = {
{
.hook = nf_nat_in,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_PRE_ROUTING,
.priority = NF_IP_PRI_NAT_DST,
},
@ -259,7 +259,7 @@ static struct nf_hook_ops nf_nat_ops[] __read_mostly = {
{
.hook = nf_nat_out,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_POST_ROUTING,
.priority = NF_IP_PRI_NAT_SRC,
},
@ -267,7 +267,7 @@ static struct nf_hook_ops nf_nat_ops[] __read_mostly = {
{
.hook = nf_nat_local_fn,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP_PRI_NAT_DST,
},
@ -275,7 +275,7 @@ static struct nf_hook_ops nf_nat_ops[] __read_mostly = {
{
.hook = nf_nat_fn,
.owner = THIS_MODULE,
.pf = PF_INET,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_IN,
.priority = NF_IP_PRI_NAT_SRC,
},

48
net/ipv6/netfilter/ip6_tables.c
View File

@ -8,7 +8,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/capability.h>
#include <linux/in.h>
#include <linux/skbuff.h>
@ -222,16 +222,11 @@ get_entry(void *base, unsigned int offset)
/* All zeroes == unconditional rule. */
/* Mildly perf critical (only if packet tracing is on) */
static inline int
unconditional(const struct ip6t_ip6 *ipv6)
static inline bool unconditional(const struct ip6t_ip6 *ipv6)
{
unsigned int i;
static const struct ip6t_ip6 uncond;
for (i = 0; i < sizeof(*ipv6); i++)
if (((char *)ipv6)[i])
break;
return (i == sizeof(*ipv6));
return memcmp(ipv6, &uncond, sizeof(uncond)) == 0;
}
#if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \
@ -745,6 +740,21 @@ find_check_entry(struct ip6t_entry *e, const char *name, unsigned int size,
return ret;
}
static bool check_underflow(struct ip6t_entry *e)
{
const struct ip6t_entry_target *t;
unsigned int verdict;
if (!unconditional(&e->ipv6))
return false;
t = ip6t_get_target(e);
if (strcmp(t->u.user.name, XT_STANDARD_TARGET) != 0)
return false;
verdict = ((struct ip6t_standard_target *)t)->verdict;
verdict = -verdict - 1;
return verdict == NF_DROP || verdict == NF_ACCEPT;
}
static int
check_entry_size_and_hooks(struct ip6t_entry *e,
struct xt_table_info *newinfo,
@ -752,6 +762,7 @@ check_entry_size_and_hooks(struct ip6t_entry *e,
unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
unsigned int valid_hooks,
unsigned int *i)
{
unsigned int h;
@ -771,15 +782,21 @@ check_entry_size_and_hooks(struct ip6t_entry *e,
/* Check hooks & underflows */
for (h = 0; h < NF_INET_NUMHOOKS; h++) {
if (!(valid_hooks & (1 << h)))
continue;
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h])
if ((unsigned char *)e - base == underflows[h]) {
if (!check_underflow(e)) {
pr_err("Underflows must be unconditional and "
"use the STANDARD target with "
"ACCEPT/DROP\n");
return -EINVAL;
}
newinfo->underflow[h] = underflows[h];
}
}
/* FIXME: underflows must be unconditional, standard verdicts
< 0 (not IP6T_RETURN). --RR */
/* Clear counters and comefrom */
e->counters = ((struct xt_counters) { 0, 0 });
e->comefrom = 0;
@ -842,7 +859,7 @@ translate_table(const char *name,
newinfo,
entry0,
entry0 + size,
hook_entries, underflows, &i);
hook_entries, underflows, valid_hooks, &i);
if (ret != 0)
return ret;
@ -2083,7 +2100,8 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
return ret;
}
struct xt_table *ip6t_register_table(struct net *net, struct xt_table *table,
struct xt_table *ip6t_register_table(struct net *net,
const struct xt_table *table,
const struct ip6t_replace *repl)
{
int ret;

9
net/ipv6/netfilter/ip6t_eui64.c
View File

@ -23,7 +23,6 @@ static bool
eui64_mt6(const struct sk_buff *skb, const struct xt_match_param *par)
{
unsigned char eui64[8];
int i = 0;
if (!(skb_mac_header(skb) >= skb->head &&
skb_mac_header(skb) + ETH_HLEN <= skb->data) &&
@ -42,12 +41,8 @@ eui64_mt6(const struct sk_buff *skb, const struct xt_match_param *par)
eui64[4] = 0xfe;
eui64[0] ^= 0x02;
i = 0;
while (ipv6_hdr(skb)->saddr.s6_addr[8 + i] == eui64[i]
&& i < 8)
i++;
if (i == 8)
if (!memcmp(ipv6_hdr(skb)->saddr.s6_addr + 8, eui64,
sizeof(eui64)))
return true;
}
}

10
net/ipv6/netfilter/ip6table_filter.c
View File

@ -51,11 +51,11 @@ static struct
.term = IP6T_ERROR_INIT, /* ERROR */
};
static struct xt_table packet_filter = {
static const struct xt_table packet_filter = {
.name = "filter",
.valid_hooks = FILTER_VALID_HOOKS,
.me = THIS_MODULE,
.af = AF_INET6,
.af = NFPROTO_IPV6,
};
/* The work comes in here from netfilter.c. */
@ -95,21 +95,21 @@ static struct nf_hook_ops ip6t_ops[] __read_mostly = {
{
.hook = ip6t_in_hook,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_LOCAL_IN,
.priority = NF_IP6_PRI_FILTER,
},
{
.hook = ip6t_in_hook,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_FORWARD,
.priority = NF_IP6_PRI_FILTER,
},
{
.hook = ip6t_local_out_hook,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP6_PRI_FILTER,
},

16
net/ipv6/netfilter/ip6table_mangle.c
View File

@ -21,7 +21,7 @@ MODULE_DESCRIPTION("ip6tables mangle table");
(1 << NF_INET_LOCAL_OUT) | \
(1 << NF_INET_POST_ROUTING))
static struct
static const struct
{
struct ip6t_replace repl;
struct ip6t_standard entries[5];
@ -57,11 +57,11 @@ static struct
.term = IP6T_ERROR_INIT, /* ERROR */
};
static struct xt_table packet_mangler = {
static const struct xt_table packet_mangler = {
.name = "mangle",
.valid_hooks = MANGLE_VALID_HOOKS,
.me = THIS_MODULE,
.af = AF_INET6,
.af = NFPROTO_IPV6,
};
/* The work comes in here from netfilter.c. */
@ -136,35 +136,35 @@ static struct nf_hook_ops ip6t_ops[] __read_mostly = {
{
.hook = ip6t_in_hook,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_PRE_ROUTING,
.priority = NF_IP6_PRI_MANGLE,
},
{
.hook = ip6t_in_hook,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_LOCAL_IN,
.priority = NF_IP6_PRI_MANGLE,
},
{
.hook = ip6t_in_hook,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_FORWARD,
.priority = NF_IP6_PRI_MANGLE,
},
{
.hook = ip6t_local_out_hook,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP6_PRI_MANGLE,
},
{
.hook = ip6t_post_routing_hook,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_POST_ROUTING,
.priority = NF_IP6_PRI_MANGLE,
},

10
net/ipv6/netfilter/ip6table_raw.c
View File

@ -8,7 +8,7 @@
#define RAW_VALID_HOOKS ((1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_OUT))
static struct
static const struct
{
struct ip6t_replace repl;
struct ip6t_standard entries[2];
@ -35,11 +35,11 @@ static struct
.term = IP6T_ERROR_INIT, /* ERROR */
};
static struct xt_table packet_raw = {
static const struct xt_table packet_raw = {
.name = "raw",
.valid_hooks = RAW_VALID_HOOKS,
.me = THIS_MODULE,
.af = AF_INET6,
.af = NFPROTO_IPV6,
};
/* The work comes in here from netfilter.c. */
@ -68,14 +68,14 @@ ip6t_local_out_hook(unsigned int hook,
static struct nf_hook_ops ip6t_ops[] __read_mostly = {
{
.hook = ip6t_pre_routing_hook,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_PRE_ROUTING,
.priority = NF_IP6_PRI_FIRST,
.owner = THIS_MODULE,
},
{
.hook = ip6t_local_out_hook,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP6_PRI_FIRST,
.owner = THIS_MODULE,

12
net/ipv6/netfilter/ip6table_security.c
View File

@ -26,7 +26,7 @@ MODULE_DESCRIPTION("ip6tables security table, for MAC rules");
(1 << NF_INET_FORWARD) | \
(1 << NF_INET_LOCAL_OUT)
static struct
static const struct
{
struct ip6t_replace repl;
struct ip6t_standard entries[3];
@ -56,11 +56,11 @@ static struct
.term = IP6T_ERROR_INIT, /* ERROR */
};
static struct xt_table security_table = {
static const struct xt_table security_table = {
.name = "security",
.valid_hooks = SECURITY_VALID_HOOKS,
.me = THIS_MODULE,
.af = AF_INET6,
.af = NFPROTO_IPV6,
};
static unsigned int
@ -101,21 +101,21 @@ static struct nf_hook_ops ip6t_ops[] __read_mostly = {
{
.hook = ip6t_local_in_hook,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_LOCAL_IN,
.priority = NF_IP6_PRI_SECURITY,
},
{
.hook = ip6t_forward_hook,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_FORWARD,
.priority = NF_IP6_PRI_SECURITY,
},
{
.hook = ip6t_local_out_hook,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP6_PRI_SECURITY,
},

18
net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
View File

@ -27,6 +27,7 @@
#include <net/netfilter/nf_conntrack_l3proto.h>
#include <net/netfilter/nf_conntrack_core.h>
#include <net/netfilter/ipv6/nf_conntrack_ipv6.h>
#include <net/netfilter/nf_log.h>
static bool ipv6_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff,
struct nf_conntrack_tuple *tuple)
@ -176,8 +177,11 @@ static unsigned int ipv6_confirm(unsigned int hooknum,
}
ret = helper->help(skb, protoff, ct, ctinfo);
if (ret != NF_ACCEPT)
if (ret != NF_ACCEPT) {
nf_log_packet(NFPROTO_IPV6, hooknum, skb, in, out, NULL,
"nf_ct_%s: dropping packet", helper->name);
return ret;
}
out:
/* We've seen it coming out the other side: confirm it */
return nf_conntrack_confirm(skb);
@ -265,42 +269,42 @@ static struct nf_hook_ops ipv6_conntrack_ops[] __read_mostly = {
{
.hook = ipv6_defrag,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_PRE_ROUTING,
.priority = NF_IP6_PRI_CONNTRACK_DEFRAG,
},
{
.hook = ipv6_conntrack_in,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_PRE_ROUTING,
.priority = NF_IP6_PRI_CONNTRACK,
},
{
.hook = ipv6_conntrack_local,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP6_PRI_CONNTRACK,
},
{
.hook = ipv6_defrag,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP6_PRI_CONNTRACK_DEFRAG,
},
{
.hook = ipv6_confirm,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_POST_ROUTING,
.priority = NF_IP6_PRI_LAST,
},
{
.hook = ipv6_confirm,
.owner = THIS_MODULE,
.pf = PF_INET6,
.pf = NFPROTO_IPV6,
.hooknum = NF_INET_LOCAL_IN,
.priority = NF_IP6_PRI_LAST-1,
},

29
net/netfilter/ipvs/ip_vs_core.c
View File

@ -1259,7 +1259,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb,
struct ip_vs_iphdr iph;
struct ip_vs_protocol *pp;
struct ip_vs_conn *cp;
int ret, restart, af;
int ret, restart, af, pkts;
af = (skb->protocol == htons(ETH_P_IP)) ? AF_INET : AF_INET6;
@ -1277,13 +1277,24 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb,
return NF_ACCEPT;
}
if (unlikely(iph.protocol == IPPROTO_ICMP)) {
int related, verdict = ip_vs_in_icmp(skb, &related, hooknum);
#ifdef CONFIG_IP_VS_IPV6
if (af == AF_INET6) {
if (unlikely(iph.protocol == IPPROTO_ICMPV6)) {
int related, verdict = ip_vs_in_icmp_v6(skb, &related, hooknum);
if (related)
return verdict;
ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
}
if (related)
return verdict;
ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
}
} else
#endif
if (unlikely(iph.protocol == IPPROTO_ICMP)) {
int related, verdict = ip_vs_in_icmp(skb, &related, hooknum);
if (related)
return verdict;
ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
}
/* Protocol supported? */
pp = ip_vs_proto_get(iph.protocol);
@ -1346,12 +1357,12 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb,
* Sync connection if it is about to close to
* encorage the standby servers to update the connections timeout
*/
atomic_inc(&cp->in_pkts);
pkts = atomic_add_return(1, &cp->in_pkts);
if (af == AF_INET &&
(ip_vs_sync_state & IP_VS_STATE_MASTER) &&
(((cp->protocol != IPPROTO_TCP ||
cp->state == IP_VS_TCP_S_ESTABLISHED) &&
(atomic_read(&cp->in_pkts) % sysctl_ip_vs_sync_threshold[1]
(pkts % sysctl_ip_vs_sync_threshold[1]
== sysctl_ip_vs_sync_threshold[0])) ||
((cp->protocol == IPPROTO_TCP) && (cp->old_state != cp->state) &&
((cp->state == IP_VS_TCP_S_FIN_WAIT) ||

7
net/netfilter/ipvs/ip_vs_wrr.c
View File

@ -77,11 +77,12 @@ static int ip_vs_wrr_gcd_weight(struct ip_vs_service *svc)
static int ip_vs_wrr_max_weight(struct ip_vs_service *svc)
{
struct ip_vs_dest *dest;
int weight = 0;
int new_weight, weight = 0;
list_for_each_entry(dest, &svc->destinations, n_list) {
if (atomic_read(&dest->weight) > weight)
weight = atomic_read(&dest->weight);
new_weight = atomic_read(&dest->weight);
if (new_weight > weight)
weight = new_weight;
}
return weight;

8
net/netfilter/nf_conntrack_core.c
View File

@ -47,7 +47,7 @@
int (*nfnetlink_parse_nat_setup_hook)(struct nf_conn *ct,
enum nf_nat_manip_type manip,
struct nlattr *attr) __read_mostly;
const struct nlattr *attr) __read_mostly;
EXPORT_SYMBOL_GPL(nfnetlink_parse_nat_setup_hook);
DEFINE_SPINLOCK(nf_conntrack_lock);
@ -1089,14 +1089,14 @@ void nf_conntrack_flush_report(struct net *net, u32 pid, int report)
}
EXPORT_SYMBOL_GPL(nf_conntrack_flush_report);
static void nf_ct_release_dying_list(void)
static void nf_ct_release_dying_list(struct net *net)
{
struct nf_conntrack_tuple_hash *h;
struct nf_conn *ct;
struct hlist_nulls_node *n;
spin_lock_bh(&nf_conntrack_lock);
hlist_nulls_for_each_entry(h, n, &init_net.ct.dying, hnnode) {
hlist_nulls_for_each_entry(h, n, &net->ct.dying, hnnode) {
ct = nf_ct_tuplehash_to_ctrack(h);
/* never fails to remove them, no listeners at this point */
nf_ct_kill(ct);
@ -1115,7 +1115,7 @@ static void nf_conntrack_cleanup_net(struct net *net)
{
i_see_dead_people:
nf_ct_iterate_cleanup(net, kill_all, NULL);
nf_ct_release_dying_list();
nf_ct_release_dying_list(net);
if (atomic_read(&net->ct.count) != 0) {
schedule();
goto i_see_dead_people;

54
net/netfilter/nf_conntrack_netlink.c
View File

@ -704,7 +704,8 @@ ctnetlink_parse_tuple_proto(struct nlattr *attr,
}
static int
ctnetlink_parse_tuple(struct nlattr *cda[], struct nf_conntrack_tuple *tuple,
ctnetlink_parse_tuple(const struct nlattr * const cda[],
struct nf_conntrack_tuple *tuple,
enum ctattr_tuple type, u_int8_t l3num)
{
struct nlattr *tb[CTA_TUPLE_MAX+1];
@ -740,7 +741,7 @@ ctnetlink_parse_tuple(struct nlattr *cda[], struct nf_conntrack_tuple *tuple,
}
static inline int
ctnetlink_parse_help(struct nlattr *attr, char **helper_name)
ctnetlink_parse_help(const struct nlattr *attr, char **helper_name)
{
struct nlattr *tb[CTA_HELP_MAX+1];
@ -764,7 +765,8 @@ static const struct nla_policy ct_nla_policy[CTA_MAX+1] = {
static int
ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[])
const struct nlmsghdr *nlh,
const struct nlattr * const cda[])
{
struct nf_conntrack_tuple_hash *h;
struct nf_conntrack_tuple tuple;
@ -823,7 +825,8 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
static int
ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[])
const struct nlmsghdr *nlh,
const struct nlattr * const cda[])
{
struct nf_conntrack_tuple_hash *h;
struct nf_conntrack_tuple tuple;
@ -884,7 +887,7 @@ out:
static int
ctnetlink_parse_nat_setup(struct nf_conn *ct,
enum nf_nat_manip_type manip,
struct nlattr *attr)
const struct nlattr *attr)
{
typeof(nfnetlink_parse_nat_setup_hook) parse_nat_setup;
@ -914,7 +917,7 @@ ctnetlink_parse_nat_setup(struct nf_conn *ct,
#endif
static int
ctnetlink_change_status(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_status(struct nf_conn *ct, const struct nlattr * const cda[])
{
unsigned long d;
unsigned int status = ntohl(nla_get_be32(cda[CTA_STATUS]));
@ -940,7 +943,7 @@ ctnetlink_change_status(struct nf_conn *ct, struct nlattr *cda[])
}
static int
ctnetlink_change_nat(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_nat(struct nf_conn *ct, const struct nlattr * const cda[])
{
#ifdef CONFIG_NF_NAT_NEEDED
int ret;
@ -966,7 +969,7 @@ ctnetlink_change_nat(struct nf_conn *ct, struct nlattr *cda[])
}
static inline int
ctnetlink_change_helper(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_helper(struct nf_conn *ct, const struct nlattr * const cda[])
{
struct nf_conntrack_helper *helper;
struct nf_conn_help *help = nfct_help(ct);
@ -1028,7 +1031,7 @@ ctnetlink_change_helper(struct nf_conn *ct, struct nlattr *cda[])
}
static inline int
ctnetlink_change_timeout(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_timeout(struct nf_conn *ct, const struct nlattr * const cda[])
{
u_int32_t timeout = ntohl(nla_get_be32(cda[CTA_TIMEOUT]));
@ -1042,9 +1045,10 @@ ctnetlink_change_timeout(struct nf_conn *ct, struct nlattr *cda[])
}
static inline int
ctnetlink_change_protoinfo(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_protoinfo(struct nf_conn *ct, const struct nlattr * const cda[])
{
struct nlattr *tb[CTA_PROTOINFO_MAX+1], *attr = cda[CTA_PROTOINFO];
const struct nlattr *attr = cda[CTA_PROTOINFO];
struct nlattr *tb[CTA_PROTOINFO_MAX+1];
struct nf_conntrack_l4proto *l4proto;
int err = 0;
@ -1061,7 +1065,7 @@ ctnetlink_change_protoinfo(struct nf_conn *ct, struct nlattr *cda[])
#ifdef CONFIG_NF_NAT_NEEDED
static inline int
change_nat_seq_adj(struct nf_nat_seq *natseq, struct nlattr *attr)
change_nat_seq_adj(struct nf_nat_seq *natseq, const struct nlattr * const attr)
{
struct nlattr *cda[CTA_NAT_SEQ_MAX+1];
@ -1089,7 +1093,8 @@ change_nat_seq_adj(struct nf_nat_seq *natseq, struct nlattr *attr)
}
static int
ctnetlink_change_nat_seq_adj(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_nat_seq_adj(struct nf_conn *ct,
const struct nlattr * const cda[])
{
int ret = 0;
struct nf_conn_nat *nat = nfct_nat(ct);
@ -1120,7 +1125,8 @@ ctnetlink_change_nat_seq_adj(struct nf_conn *ct, struct nlattr *cda[])
#endif
static int
ctnetlink_change_conntrack(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_conntrack(struct nf_conn *ct,
const struct nlattr * const cda[])
{
int err;
@ -1169,7 +1175,7 @@ ctnetlink_change_conntrack(struct nf_conn *ct, struct nlattr *cda[])
}
static struct nf_conn *
ctnetlink_create_conntrack(struct nlattr *cda[],
ctnetlink_create_conntrack(const struct nlattr * const cda[],
struct nf_conntrack_tuple *otuple,
struct nf_conntrack_tuple *rtuple,
u8 u3)
@ -1304,7 +1310,8 @@ err1:
static int
ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[])
const struct nlmsghdr *nlh,
const struct nlattr * const cda[])
{
struct nf_conntrack_tuple otuple, rtuple;
struct nf_conntrack_tuple_hash *h = NULL;
@ -1629,7 +1636,8 @@ static const struct nla_policy exp_nla_policy[CTA_EXPECT_MAX+1] = {
static int
ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[])
const struct nlmsghdr *nlh,
const struct nlattr * const cda[])
{
struct nf_conntrack_tuple tuple;
struct nf_conntrack_expect *exp;
@ -1689,7 +1697,8 @@ out:
static int
ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[])
const struct nlmsghdr *nlh,
const struct nlattr * const cda[])
{
struct nf_conntrack_expect *exp;
struct nf_conntrack_tuple tuple;
@ -1767,13 +1776,15 @@ ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb,
return 0;
}
static int
ctnetlink_change_expect(struct nf_conntrack_expect *x, struct nlattr *cda[])
ctnetlink_change_expect(struct nf_conntrack_expect *x,
const struct nlattr * const cda[])
{
return -EOPNOTSUPP;
}
static int
ctnetlink_create_expect(struct nlattr *cda[], u_int8_t u3, u32 pid, int report)
ctnetlink_create_expect(const struct nlattr * const cda[], u_int8_t u3,
u32 pid, int report)
{
struct nf_conntrack_tuple tuple, mask, master_tuple;
struct nf_conntrack_tuple_hash *h = NULL;
@ -1831,7 +1842,8 @@ out:
static int
ctnetlink_new_expect(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[])
const struct nlmsghdr *nlh,
const struct nlattr * const cda[])
{
struct nf_conntrack_tuple tuple;
struct nf_conntrack_expect *exp;

2
net/netfilter/nfnetlink.c
View File

@ -170,7 +170,7 @@ replay:
if (err < 0)
return err;
err = nc->call(nfnl, skb, nlh, cda);
err = nc->call(nfnl, skb, nlh, (const struct nlattr **)cda);
if (err == -EAGAIN)
goto replay;
return err;

6
net/netfilter/nfnetlink_log.c
View File

@ -694,7 +694,8 @@ static struct notifier_block nfulnl_rtnl_notifier = {
static int
nfulnl_recv_unsupp(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *nfqa[])
const struct nlmsghdr *nlh,
const struct nlattr * const nfqa[])
{
return -ENOTSUPP;
}
@ -716,7 +717,8 @@ static const struct nla_policy nfula_cfg_policy[NFULA_CFG_MAX+1] = {
static int
nfulnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *nfula[])
const struct nlmsghdr *nlh,
const struct nlattr * const nfula[])
{
struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
u_int16_t group_num = ntohs(nfmsg->res_id);

9
net/netfilter/nfnetlink_queue.c
View File

@ -608,7 +608,8 @@ static const struct nla_policy nfqa_verdict_policy[NFQA_MAX+1] = {
static int
nfqnl_recv_verdict(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *nfqa[])
const struct nlmsghdr *nlh,
const struct nlattr * const nfqa[])
{
struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
u_int16_t queue_num = ntohs(nfmsg->res_id);
@ -670,7 +671,8 @@ err_out_unlock:
static int
nfqnl_recv_unsupp(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *nfqa[])
const struct nlmsghdr *nlh,
const struct nlattr * const nfqa[])
{
return -ENOTSUPP;
}
@ -687,7 +689,8 @@ static const struct nf_queue_handler nfqh = {
static int
nfqnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *nfqa[])
const struct nlmsghdr *nlh,
const struct nlattr * const nfqa[])
{
struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
u_int16_t queue_num = ntohs(nfmsg->res_id);

7
net/netfilter/x_tables.c
View File

@ -736,16 +736,17 @@ xt_replace_table(struct xt_table *table,
}
EXPORT_SYMBOL_GPL(xt_replace_table);
struct xt_table *xt_register_table(struct net *net, struct xt_table *table,
struct xt_table *xt_register_table(struct net *net,
const struct xt_table *input_table,
struct xt_table_info *bootstrap,
struct xt_table_info *newinfo)
{
int ret;
struct xt_table_info *private;
struct xt_table *t;
struct xt_table *t, *table;
/* Don't add one object to multiple lists. */
table = kmemdup(table, sizeof(struct xt_table), GFP_KERNEL);
table = kmemdup(input_table, sizeof(struct xt_table), GFP_KERNEL);
if (!table) {
ret = -ENOMEM;
goto out;

134
net/netfilter/xt_CONNMARK.c
View File

@ -35,45 +35,6 @@ MODULE_ALIAS("ip6t_CONNMARK");
#include <linux/netfilter/xt_CONNMARK.h>
#include <net/netfilter/nf_conntrack_ecache.h>
static unsigned int
connmark_tg_v0(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_connmark_target_info *markinfo = par->targinfo;
struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
u_int32_t diff;
u_int32_t mark;
u_int32_t newmark;
ct = nf_ct_get(skb, &ctinfo);
if (ct) {
switch(markinfo->mode) {
case XT_CONNMARK_SET:
newmark = (ct->mark & ~markinfo->mask) | markinfo->mark;
if (newmark != ct->mark) {
ct->mark = newmark;
nf_conntrack_event_cache(IPCT_MARK, ct);
}
break;
case XT_CONNMARK_SAVE:
newmark = (ct->mark & ~markinfo->mask) |
(skb->mark & markinfo->mask);
if (ct->mark != newmark) {
ct->mark = newmark;
nf_conntrack_event_cache(IPCT_MARK, ct);
}
break;
case XT_CONNMARK_RESTORE:
mark = skb->mark;
diff = (ct->mark ^ mark) & markinfo->mask;
skb->mark = mark ^ diff;
break;
}
}
return XT_CONTINUE;
}
static unsigned int
connmark_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
@ -112,30 +73,6 @@ connmark_tg(struct sk_buff *skb, const struct xt_target_param *par)
return XT_CONTINUE;
}
static bool connmark_tg_check_v0(const struct xt_tgchk_param *par)
{
const struct xt_connmark_target_info *matchinfo = par->targinfo;
if (matchinfo->mode == XT_CONNMARK_RESTORE) {
if (strcmp(par->table, "mangle") != 0) {
printk(KERN_WARNING "CONNMARK: restore can only be "
"called from \"mangle\" table, not \"%s\"\n",
par->table);
return false;
}
}
if (matchinfo->mark > 0xffffffff || matchinfo->mask > 0xffffffff) {
printk(KERN_WARNING "CONNMARK: Only supports 32bit mark\n");
return false;
}
if (nf_ct_l3proto_try_module_get(par->family) < 0) {
printk(KERN_WARNING "can't load conntrack support for "
"proto=%u\n", par->family);
return false;
}
return true;
}
static bool connmark_tg_check(const struct xt_tgchk_param *par)
{
if (nf_ct_l3proto_try_module_get(par->family) < 0) {
@ -151,74 +88,25 @@ static void connmark_tg_destroy(const struct xt_tgdtor_param *par)
nf_ct_l3proto_module_put(par->family);
}
#ifdef CONFIG_COMPAT
struct compat_xt_connmark_target_info {
compat_ulong_t mark, mask;
u_int8_t mode;
u_int8_t __pad1;
u_int16_t __pad2;
};
static void connmark_tg_compat_from_user_v0(void *dst, void *src)
{
const struct compat_xt_connmark_target_info *cm = src;
struct xt_connmark_target_info m = {
.mark = cm->mark,
.mask = cm->mask,
.mode = cm->mode,
};
memcpy(dst, &m, sizeof(m));
}
static int connmark_tg_compat_to_user_v0(void __user *dst, void *src)
{
const struct xt_connmark_target_info *m = src;
struct compat_xt_connmark_target_info cm = {
.mark = m->mark,
.mask = m->mask,
.mode = m->mode,
};
return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0;
}
#endif /* CONFIG_COMPAT */
static struct xt_target connmark_tg_reg[] __read_mostly = {
{
.name = "CONNMARK",
.revision = 0,
.family = NFPROTO_UNSPEC,
.checkentry = connmark_tg_check_v0,
.destroy = connmark_tg_destroy,
.target = connmark_tg_v0,
.targetsize = sizeof(struct xt_connmark_target_info),
#ifdef CONFIG_COMPAT
.compatsize = sizeof(struct compat_xt_connmark_target_info),
.compat_from_user = connmark_tg_compat_from_user_v0,
.compat_to_user = connmark_tg_compat_to_user_v0,
#endif
.me = THIS_MODULE
},
{
.name = "CONNMARK",
.revision = 1,
.family = NFPROTO_UNSPEC,
.checkentry = connmark_tg_check,
.target = connmark_tg,
.targetsize = sizeof(struct xt_connmark_tginfo1),
.destroy = connmark_tg_destroy,
.me = THIS_MODULE,
},
static struct xt_target connmark_tg_reg __read_mostly = {
.name = "CONNMARK",
.revision = 1,
.family = NFPROTO_UNSPEC,
.checkentry = connmark_tg_check,
.target = connmark_tg,
.targetsize = sizeof(struct xt_connmark_tginfo1),
.destroy = connmark_tg_destroy,
.me = THIS_MODULE,
};
static int __init connmark_tg_init(void)
{
return xt_register_targets(connmark_tg_reg,
ARRAY_SIZE(connmark_tg_reg));
return xt_register_target(&connmark_tg_reg);
}
static void __exit connmark_tg_exit(void)
{
xt_unregister_targets(connmark_tg_reg, ARRAY_SIZE(connmark_tg_reg));
xt_unregister_target(&connmark_tg_reg);
}
module_init(connmark_tg_init);

46
net/netfilter/xt_DSCP.c
View File

@ -18,7 +18,6 @@
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_DSCP.h>
#include <linux/netfilter_ipv4/ipt_TOS.h>
MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
MODULE_DESCRIPTION("Xtables: DSCP/TOS field modification");
@ -72,41 +71,6 @@ static bool dscp_tg_check(const struct xt_tgchk_param *par)
return true;
}
static unsigned int
tos_tg_v0(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ipt_tos_target_info *info = par->targinfo;
struct iphdr *iph = ip_hdr(skb);
u_int8_t oldtos;
if ((iph->tos & IPTOS_TOS_MASK) != info->tos) {
if (!skb_make_writable(skb, sizeof(struct iphdr)))
return NF_DROP;
iph = ip_hdr(skb);
oldtos = iph->tos;
iph->tos = (iph->tos & IPTOS_PREC_MASK) | info->tos;
csum_replace2(&iph->check, htons(oldtos), htons(iph->tos));
}
return XT_CONTINUE;
}
static bool tos_tg_check_v0(const struct xt_tgchk_param *par)
{
const struct ipt_tos_target_info *info = par->targinfo;
const uint8_t tos = info->tos;
if (tos != IPTOS_LOWDELAY && tos != IPTOS_THROUGHPUT &&
tos != IPTOS_RELIABILITY && tos != IPTOS_MINCOST &&
tos != IPTOS_NORMALSVC) {
printk(KERN_WARNING "TOS: bad tos value %#x\n", tos);
return false;
}
return true;
}
static unsigned int
tos_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
@ -166,16 +130,6 @@ static struct xt_target dscp_tg_reg[] __read_mostly = {
.table = "mangle",
.me = THIS_MODULE,
},
{
.name = "TOS",
.revision = 0,
.family = NFPROTO_IPV4,
.table = "mangle",
.target = tos_tg_v0,
.targetsize = sizeof(struct ipt_tos_target_info),
.checkentry = tos_tg_check_v0,
.me = THIS_MODULE,
},
{
.name = "TOS",
.revision = 1,

163
net/netfilter/xt_MARK.c
View File

@ -24,39 +24,6 @@ MODULE_DESCRIPTION("Xtables: packet mark modification");
MODULE_ALIAS("ipt_MARK");
MODULE_ALIAS("ip6t_MARK");
static unsigned int
mark_tg_v0(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_mark_target_info *markinfo = par->targinfo;
skb->mark = markinfo->mark;
return XT_CONTINUE;
}
static unsigned int
mark_tg_v1(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_mark_target_info_v1 *markinfo = par->targinfo;
int mark = 0;
switch (markinfo->mode) {
case XT_MARK_SET:
mark = markinfo->mark;
break;
case XT_MARK_AND:
mark = skb->mark & markinfo->mark;
break;
case XT_MARK_OR:
mark = skb->mark | markinfo->mark;
break;
}
skb->mark = mark;
return XT_CONTINUE;
}
static unsigned int
mark_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
@ -66,135 +33,23 @@ mark_tg(struct sk_buff *skb, const struct xt_target_param *par)
return XT_CONTINUE;
}
static bool mark_tg_check_v0(const struct xt_tgchk_param *par)
{
const struct xt_mark_target_info *markinfo = par->targinfo;
if (markinfo->mark > 0xffffffff) {
printk(KERN_WARNING "MARK: Only supports 32bit wide mark\n");
return false;
}
return true;
}
static bool mark_tg_check_v1(const struct xt_tgchk_param *par)
{
const struct xt_mark_target_info_v1 *markinfo = par->targinfo;
if (markinfo->mode != XT_MARK_SET
&& markinfo->mode != XT_MARK_AND
&& markinfo->mode != XT_MARK_OR) {
printk(KERN_WARNING "MARK: unknown mode %u\n",
markinfo->mode);
return false;
}
if (markinfo->mark > 0xffffffff) {
printk(KERN_WARNING "MARK: Only supports 32bit wide mark\n");
return false;
}
return true;
}
#ifdef CONFIG_COMPAT
struct compat_xt_mark_target_info {
compat_ulong_t mark;
};
static void mark_tg_compat_from_user_v0(void *dst, void *src)
{
const struct compat_xt_mark_target_info *cm = src;
struct xt_mark_target_info m = {
.mark = cm->mark,
};
memcpy(dst, &m, sizeof(m));
}
static int mark_tg_compat_to_user_v0(void __user *dst, void *src)
{
const struct xt_mark_target_info *m = src;
struct compat_xt_mark_target_info cm = {
.mark = m->mark,
};
return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0;
}
struct compat_xt_mark_target_info_v1 {
compat_ulong_t mark;
u_int8_t mode;
u_int8_t __pad1;
u_int16_t __pad2;
};
static void mark_tg_compat_from_user_v1(void *dst, void *src)
{
const struct compat_xt_mark_target_info_v1 *cm = src;
struct xt_mark_target_info_v1 m = {
.mark = cm->mark,
.mode = cm->mode,
};
memcpy(dst, &m, sizeof(m));
}
static int mark_tg_compat_to_user_v1(void __user *dst, void *src)
{
const struct xt_mark_target_info_v1 *m = src;
struct compat_xt_mark_target_info_v1 cm = {
.mark = m->mark,
.mode = m->mode,
};
return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0;
}
#endif /* CONFIG_COMPAT */
static struct xt_target mark_tg_reg[] __read_mostly = {
{
.name = "MARK",
.family = NFPROTO_UNSPEC,
.revision = 0,
.checkentry = mark_tg_check_v0,
.target = mark_tg_v0,
.targetsize = sizeof(struct xt_mark_target_info),
#ifdef CONFIG_COMPAT
.compatsize = sizeof(struct compat_xt_mark_target_info),
.compat_from_user = mark_tg_compat_from_user_v0,
.compat_to_user = mark_tg_compat_to_user_v0,
#endif
.table = "mangle",
.me = THIS_MODULE,
},
{
.name = "MARK",
.family = NFPROTO_UNSPEC,
.revision = 1,
.checkentry = mark_tg_check_v1,
.target = mark_tg_v1,
.targetsize = sizeof(struct xt_mark_target_info_v1),
#ifdef CONFIG_COMPAT
.compatsize = sizeof(struct compat_xt_mark_target_info_v1),
.compat_from_user = mark_tg_compat_from_user_v1,
.compat_to_user = mark_tg_compat_to_user_v1,
#endif
.table = "mangle",
.me = THIS_MODULE,
},
{
.name = "MARK",
.revision = 2,
.family = NFPROTO_UNSPEC,
.target = mark_tg,
.targetsize = sizeof(struct xt_mark_tginfo2),
.me = THIS_MODULE,
},
static struct xt_target mark_tg_reg __read_mostly = {
.name = "MARK",
.revision = 2,
.family = NFPROTO_UNSPEC,
.target = mark_tg,
.targetsize = sizeof(struct xt_mark_tginfo2),
.me = THIS_MODULE,
};
static int __init mark_tg_init(void)
{
return xt_register_targets(mark_tg_reg, ARRAY_SIZE(mark_tg_reg));
return xt_register_target(&mark_tg_reg);
}
static void __exit mark_tg_exit(void)
{
xt_unregister_targets(mark_tg_reg, ARRAY_SIZE(mark_tg_reg));
xt_unregister_target(&mark_tg_reg);
}
module_init(mark_tg_init);

101
net/netfilter/xt_connmark.c
View File

@ -47,36 +47,6 @@ connmark_mt(const struct sk_buff *skb, const struct xt_match_param *par)
return ((ct->mark & info->mask) == info->mark) ^ info->invert;
}
static bool
connmark_mt_v0(const struct sk_buff *skb, const struct xt_match_param *par)
{
const struct xt_connmark_info *info = par->matchinfo;
const struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
ct = nf_ct_get(skb, &ctinfo);
if (!ct)
return false;
return ((ct->mark & info->mask) == info->mark) ^ info->invert;
}
static bool connmark_mt_check_v0(const struct xt_mtchk_param *par)
{
const struct xt_connmark_info *cm = par->matchinfo;
if (cm->mark > 0xffffffff || cm->mask > 0xffffffff) {
printk(KERN_WARNING "connmark: only support 32bit mark\n");
return false;
}
if (nf_ct_l3proto_try_module_get(par->family) < 0) {
printk(KERN_WARNING "can't load conntrack support for "
"proto=%u\n", par->family);
return false;
}
return true;
}
static bool connmark_mt_check(const struct xt_mtchk_param *par)
{
if (nf_ct_l3proto_try_module_get(par->family) < 0) {
@ -92,74 +62,25 @@ static void connmark_mt_destroy(const struct xt_mtdtor_param *par)
nf_ct_l3proto_module_put(par->family);
}
#ifdef CONFIG_COMPAT
struct compat_xt_connmark_info {
compat_ulong_t mark, mask;
u_int8_t invert;
u_int8_t __pad1;
u_int16_t __pad2;
};
static void connmark_mt_compat_from_user_v0(void *dst, void *src)
{
const struct compat_xt_connmark_info *cm = src;
struct xt_connmark_info m = {
.mark = cm->mark,
.mask = cm->mask,
.invert = cm->invert,
};
memcpy(dst, &m, sizeof(m));
}
static int connmark_mt_compat_to_user_v0(void __user *dst, void *src)
{
const struct xt_connmark_info *m = src;
struct compat_xt_connmark_info cm = {
.mark = m->mark,
.mask = m->mask,
.invert = m->invert,
};
return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0;
}
#endif /* CONFIG_COMPAT */
static struct xt_match connmark_mt_reg[] __read_mostly = {
{
.name = "connmark",
.revision = 0,
.family = NFPROTO_UNSPEC,
.checkentry = connmark_mt_check_v0,
.match = connmark_mt_v0,
.destroy = connmark_mt_destroy,
.matchsize = sizeof(struct xt_connmark_info),
#ifdef CONFIG_COMPAT
.compatsize = sizeof(struct compat_xt_connmark_info),
.compat_from_user = connmark_mt_compat_from_user_v0,
.compat_to_user = connmark_mt_compat_to_user_v0,
#endif
.me = THIS_MODULE
},
{
.name = "connmark",
.revision = 1,
.family = NFPROTO_UNSPEC,
.checkentry = connmark_mt_check,
.match = connmark_mt,
.matchsize = sizeof(struct xt_connmark_mtinfo1),
.destroy = connmark_mt_destroy,
.me = THIS_MODULE,
},
static struct xt_match connmark_mt_reg __read_mostly = {
.name = "connmark",
.revision = 1,
.family = NFPROTO_UNSPEC,
.checkentry = connmark_mt_check,
.match = connmark_mt,
.matchsize = sizeof(struct xt_connmark_mtinfo1),
.destroy = connmark_mt_destroy,
.me = THIS_MODULE,
};
static int __init connmark_mt_init(void)
{
return xt_register_matches(connmark_mt_reg,
ARRAY_SIZE(connmark_mt_reg));
return xt_register_match(&connmark_mt_reg);
}
static void __exit connmark_mt_exit(void)
{
xt_unregister_matches(connmark_mt_reg, ARRAY_SIZE(connmark_mt_reg));
xt_unregister_match(&connmark_mt_reg);
}
module_init(connmark_mt_init);

155
net/netfilter/xt_conntrack.c
View File

@ -19,100 +19,11 @@
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Marc Boucher <marc@mbsi.ca>");
MODULE_AUTHOR("Jan Engelhardt <jengelh@computergmbh.de>");
MODULE_AUTHOR("Jan Engelhardt <jengelh@medozas.de>");
MODULE_DESCRIPTION("Xtables: connection tracking state match");
MODULE_ALIAS("ipt_conntrack");
MODULE_ALIAS("ip6t_conntrack");
static bool
conntrack_mt_v0(const struct sk_buff *skb, const struct xt_match_param *par)
{
const struct xt_conntrack_info *sinfo = par->matchinfo;
const struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
unsigned int statebit;
ct = nf_ct_get(skb, &ctinfo);
#define FWINV(bool, invflg) ((bool) ^ !!(sinfo->invflags & (invflg)))
if (ct == &nf_conntrack_untracked)
statebit = XT_CONNTRACK_STATE_UNTRACKED;
else if (ct)
statebit = XT_CONNTRACK_STATE_BIT(ctinfo);
else
statebit = XT_CONNTRACK_STATE_INVALID;
if (sinfo->flags & XT_CONNTRACK_STATE) {
if (ct) {
if (test_bit(IPS_SRC_NAT_BIT, &ct->status))
statebit |= XT_CONNTRACK_STATE_SNAT;
if (test_bit(IPS_DST_NAT_BIT, &ct->status))
statebit |= XT_CONNTRACK_STATE_DNAT;
}
if (FWINV((statebit & sinfo->statemask) == 0,
XT_CONNTRACK_STATE))
return false;
}
if (ct == NULL) {
if (sinfo->flags & ~XT_CONNTRACK_STATE)
return false;
return true;
}
if (sinfo->flags & XT_CONNTRACK_PROTO &&
FWINV(nf_ct_protonum(ct) !=
sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.protonum,
XT_CONNTRACK_PROTO))
return false;
if (sinfo->flags & XT_CONNTRACK_ORIGSRC &&
FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip &
sinfo->sipmsk[IP_CT_DIR_ORIGINAL].s_addr) !=
sinfo->tuple[IP_CT_DIR_ORIGINAL].src.ip,
XT_CONNTRACK_ORIGSRC))
return false;
if (sinfo->flags & XT_CONNTRACK_ORIGDST &&
FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.ip &
sinfo->dipmsk[IP_CT_DIR_ORIGINAL].s_addr) !=
sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.ip,
XT_CONNTRACK_ORIGDST))
return false;
if (sinfo->flags & XT_CONNTRACK_REPLSRC &&
FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip &
sinfo->sipmsk[IP_CT_DIR_REPLY].s_addr) !=
sinfo->tuple[IP_CT_DIR_REPLY].src.ip,
XT_CONNTRACK_REPLSRC))
return false;
if (sinfo->flags & XT_CONNTRACK_REPLDST &&
FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip &
sinfo->dipmsk[IP_CT_DIR_REPLY].s_addr) !=
sinfo->tuple[IP_CT_DIR_REPLY].dst.ip,
XT_CONNTRACK_REPLDST))
return false;
if (sinfo->flags & XT_CONNTRACK_STATUS &&
FWINV((ct->status & sinfo->statusmask) == 0,
XT_CONNTRACK_STATUS))
return false;
if(sinfo->flags & XT_CONNTRACK_EXPIRES) {
unsigned long expires = timer_pending(&ct->timeout) ?
(ct->timeout.expires - jiffies)/HZ : 0;
if (FWINV(!(expires >= sinfo->expires_min &&
expires <= sinfo->expires_max),
XT_CONNTRACK_EXPIRES))
return false;
}
return true;
#undef FWINV
}
static bool
conntrack_addrcmp(const union nf_inet_addr *kaddr,
const union nf_inet_addr *uaddr,
@ -337,71 +248,7 @@ static void conntrack_mt_destroy_v1(const struct xt_mtdtor_param *par)
conntrack_mt_destroy(par);
}
#ifdef CONFIG_COMPAT
struct compat_xt_conntrack_info
{
compat_uint_t statemask;
compat_uint_t statusmask;
struct ip_conntrack_old_tuple tuple[IP_CT_DIR_MAX];
struct in_addr sipmsk[IP_CT_DIR_MAX];
struct in_addr dipmsk[IP_CT_DIR_MAX];
compat_ulong_t expires_min;
compat_ulong_t expires_max;
u_int8_t flags;
u_int8_t invflags;
};
static void conntrack_mt_compat_from_user_v0(void *dst, void *src)
{
const struct compat_xt_conntrack_info *cm = src;
struct xt_conntrack_info m = {
.statemask = cm->statemask,
.statusmask = cm->statusmask,
.expires_min = cm->expires_min,
.expires_max = cm->expires_max,
.flags = cm->flags,
.invflags = cm->invflags,
};
memcpy(m.tuple, cm->tuple, sizeof(m.tuple));
memcpy(m.sipmsk, cm->sipmsk, sizeof(m.sipmsk));
memcpy(m.dipmsk, cm->dipmsk, sizeof(m.dipmsk));
memcpy(dst, &m, sizeof(m));
}
static int conntrack_mt_compat_to_user_v0(void __user *dst, void *src)
{
const struct xt_conntrack_info *m = src;
struct compat_xt_conntrack_info cm = {
.statemask = m->statemask,
.statusmask = m->statusmask,
.expires_min = m->expires_min,
.expires_max = m->expires_max,
.flags = m->flags,
.invflags = m->invflags,
};
memcpy(cm.tuple, m->tuple, sizeof(cm.tuple));
memcpy(cm.sipmsk, m->sipmsk, sizeof(cm.sipmsk));
memcpy(cm.dipmsk, m->dipmsk, sizeof(cm.dipmsk));
return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0;
}
#endif
static struct xt_match conntrack_mt_reg[] __read_mostly = {
{
.name = "conntrack",
.revision = 0,
.family = NFPROTO_IPV4,
.match = conntrack_mt_v0,
.checkentry = conntrack_mt_check,
.destroy = conntrack_mt_destroy,
.matchsize = sizeof(struct xt_conntrack_info),
.me = THIS_MODULE,
#ifdef CONFIG_COMPAT
.compatsize = sizeof(struct compat_xt_conntrack_info),
.compat_from_user = conntrack_mt_compat_from_user_v0,
.compat_to_user = conntrack_mt_compat_to_user_v0,
#endif
},
{
.name = "conntrack",
.revision = 1,

17
net/netfilter/xt_dscp.c
View File

@ -15,7 +15,6 @@
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_dscp.h>
#include <linux/netfilter_ipv4/ipt_tos.h>
MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
MODULE_DESCRIPTION("Xtables: DSCP/TOS field match");
@ -55,14 +54,6 @@ static bool dscp_mt_check(const struct xt_mtchk_param *par)
return true;
}
static bool
tos_mt_v0(const struct sk_buff *skb, const struct xt_match_param *par)
{
const struct ipt_tos_info *info = par->matchinfo;
return (ip_hdr(skb)->tos == info->tos) ^ info->invert;
}
static bool tos_mt(const struct sk_buff *skb, const struct xt_match_param *par)
{
const struct xt_tos_match_info *info = par->matchinfo;
@ -92,14 +83,6 @@ static struct xt_match dscp_mt_reg[] __read_mostly = {
.matchsize = sizeof(struct xt_dscp_info),
.me = THIS_MODULE,
},
{
.name = "tos",
.revision = 0,
.family = NFPROTO_IPV4,
.match = tos_mt_v0,
.matchsize = sizeof(struct ipt_tos_info),
.me = THIS_MODULE,
},
{
.name = "tos",
.revision = 1,

45
net/netfilter/xt_iprange.c
View File

@ -14,40 +14,6 @@
#include <linux/ipv6.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_iprange.h>
#include <linux/netfilter_ipv4/ipt_iprange.h>
static bool
iprange_mt_v0(const struct sk_buff *skb, const struct xt_match_param *par)
{
const struct ipt_iprange_info *info = par->matchinfo;
const struct iphdr *iph = ip_hdr(skb);
if (info->flags & IPRANGE_SRC) {
if ((ntohl(iph->saddr) < ntohl(info->src.min_ip)
|| ntohl(iph->saddr) > ntohl(info->src.max_ip))
^ !!(info->flags & IPRANGE_SRC_INV)) {
pr_debug("src IP %pI4 NOT in range %s%pI4-%pI4\n",
&iph->saddr,
info->flags & IPRANGE_SRC_INV ? "(INV) " : "",
&info->src.min_ip,
&info->src.max_ip);
return false;
}
}
if (info->flags & IPRANGE_DST) {
if ((ntohl(iph->daddr) < ntohl(info->dst.min_ip)
|| ntohl(iph->daddr) > ntohl(info->dst.max_ip))
^ !!(info->flags & IPRANGE_DST_INV)) {
pr_debug("dst IP %pI4 NOT in range %s%pI4-%pI4\n",
&iph->daddr,
info->flags & IPRANGE_DST_INV ? "(INV) " : "",
&info->dst.min_ip,
&info->dst.max_ip);
return false;
}
}
return true;
}
static bool
iprange_mt4(const struct sk_buff *skb, const struct xt_match_param *par)
@ -125,14 +91,6 @@ iprange_mt6(const struct sk_buff *skb, const struct xt_match_param *par)
}
static struct xt_match iprange_mt_reg[] __read_mostly = {
{
.name = "iprange",
.revision = 0,
.family = NFPROTO_IPV4,
.match = iprange_mt_v0,
.matchsize = sizeof(struct ipt_iprange_info),
.me = THIS_MODULE,
},
{
.name = "iprange",
.revision = 1,
@ -164,7 +122,8 @@ static void __exit iprange_mt_exit(void)
module_init(iprange_mt_init);
module_exit(iprange_mt_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>, Jan Engelhardt <jengelh@computergmbh.de>");
MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
MODULE_AUTHOR("Jan Engelhardt <jengelh@medozas.de>");
MODULE_DESCRIPTION("Xtables: arbitrary IPv4 range matching");
MODULE_ALIAS("ipt_iprange");
MODULE_ALIAS("ip6t_iprange");

86
net/netfilter/xt_mark.c
View File

@ -3,7 +3,7 @@
*
* (C) 1999-2001 Marc Boucher <marc@mbsi.ca>
* Copyright © CC Computer Consultants GmbH, 2007 - 2008
* Jan Engelhardt <jengelh@computergmbh.de>
* Jan Engelhardt <jengelh@medozas.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@ -22,14 +22,6 @@ MODULE_DESCRIPTION("Xtables: packet mark match");
MODULE_ALIAS("ipt_mark");
MODULE_ALIAS("ip6t_mark");
static bool
mark_mt_v0(const struct sk_buff *skb, const struct xt_match_param *par)
{
const struct xt_mark_info *info = par->matchinfo;
return ((skb->mark & info->mask) == info->mark) ^ info->invert;
}
static bool
mark_mt(const struct sk_buff *skb, const struct xt_match_param *par)
{
@ -38,81 +30,23 @@ mark_mt(const struct sk_buff *skb, const struct xt_match_param *par)
return ((skb->mark & info->mask) == info->mark) ^ info->invert;
}
static bool mark_mt_check_v0(const struct xt_mtchk_param *par)
{
const struct xt_mark_info *minfo = par->matchinfo;
if (minfo->mark > 0xffffffff || minfo->mask > 0xffffffff) {
printk(KERN_WARNING "mark: only supports 32bit mark\n");
return false;
}
return true;
}
#ifdef CONFIG_COMPAT
struct compat_xt_mark_info {
compat_ulong_t mark, mask;
u_int8_t invert;
u_int8_t __pad1;
u_int16_t __pad2;
};
static void mark_mt_compat_from_user_v0(void *dst, void *src)
{
const struct compat_xt_mark_info *cm = src;
struct xt_mark_info m = {
.mark = cm->mark,
.mask = cm->mask,
.invert = cm->invert,
};
memcpy(dst, &m, sizeof(m));
}
static int mark_mt_compat_to_user_v0(void __user *dst, void *src)
{
const struct xt_mark_info *m = src;
struct compat_xt_mark_info cm = {
.mark = m->mark,
.mask = m->mask,
.invert = m->invert,
};
return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0;
}
#endif /* CONFIG_COMPAT */
static struct xt_match mark_mt_reg[] __read_mostly = {
{
.name = "mark",
.revision = 0,
.family = NFPROTO_UNSPEC,
.checkentry = mark_mt_check_v0,
.match = mark_mt_v0,
.matchsize = sizeof(struct xt_mark_info),
#ifdef CONFIG_COMPAT
.compatsize = sizeof(struct compat_xt_mark_info),
.compat_from_user = mark_mt_compat_from_user_v0,
.compat_to_user = mark_mt_compat_to_user_v0,
#endif
.me = THIS_MODULE,
},
{
.name = "mark",
.revision = 1,
.family = NFPROTO_UNSPEC,
.match = mark_mt,
.matchsize = sizeof(struct xt_mark_mtinfo1),
.me = THIS_MODULE,
},
static struct xt_match mark_mt_reg __read_mostly = {
.name = "mark",
.revision = 1,
.family = NFPROTO_UNSPEC,
.match = mark_mt,
.matchsize = sizeof(struct xt_mark_mtinfo1),
.me = THIS_MODULE,
};
static int __init mark_mt_init(void)
{
return xt_register_matches(mark_mt_reg, ARRAY_SIZE(mark_mt_reg));
return xt_register_match(&mark_mt_reg);
}
static void __exit mark_mt_exit(void)
{
xt_unregister_matches(mark_mt_reg, ARRAY_SIZE(mark_mt_reg));
xt_unregister_match(&mark_mt_reg);
}
module_init(mark_mt_init);

6
net/netfilter/xt_osf.c
View File

@ -70,7 +70,8 @@ static void xt_osf_finger_free_rcu(struct rcu_head *rcu_head)
}
static int xt_osf_add_callback(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *osf_attrs[])
const struct nlmsghdr *nlh,
const struct nlattr * const osf_attrs[])
{
struct xt_osf_user_finger *f;
struct xt_osf_finger *kf = NULL, *sf;
@ -112,7 +113,8 @@ static int xt_osf_add_callback(struct sock *ctnl, struct sk_buff *skb,
}
static int xt_osf_remove_callback(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *osf_attrs[])
const struct nlmsghdr *nlh,
const struct nlattr * const osf_attrs[])
{
struct xt_osf_user_finger *f;
struct xt_osf_finger *sf;

130
net/netfilter/xt_owner.c
View File

@ -5,7 +5,6 @@
* (C) 2000 Marc Boucher <marc@mbsi.ca>
*
* Copyright © CC Computer Consultants GmbH, 2007 - 2008
* <jengelh@computergmbh.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@ -17,60 +16,6 @@
#include <net/sock.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_owner.h>
#include <linux/netfilter_ipv4/ipt_owner.h>
#include <linux/netfilter_ipv6/ip6t_owner.h>
static bool
owner_mt_v0(const struct sk_buff *skb, const struct xt_match_param *par)
{
const struct ipt_owner_info *info = par->matchinfo;
const struct file *filp;
if (skb->sk == NULL || skb->sk->sk_socket == NULL)
return false;
filp = skb->sk->sk_socket->file;
if (filp == NULL)
return false;
if (info->match & IPT_OWNER_UID)
if ((filp->f_cred->fsuid != info->uid) ^
!!(info->invert & IPT_OWNER_UID))
return false;
if (info->match & IPT_OWNER_GID)
if ((filp->f_cred->fsgid != info->gid) ^
!!(info->invert & IPT_OWNER_GID))
return false;
return true;
}
static bool
owner_mt6_v0(const struct sk_buff *skb, const struct xt_match_param *par)
{
const struct ip6t_owner_info *info = par->matchinfo;
const struct file *filp;
if (skb->sk == NULL || skb->sk->sk_socket == NULL)
return false;
filp = skb->sk->sk_socket->file;
if (filp == NULL)
return false;
if (info->match & IP6T_OWNER_UID)
if ((filp->f_cred->fsuid != info->uid) ^
!!(info->invert & IP6T_OWNER_UID))
return false;
if (info->match & IP6T_OWNER_GID)
if ((filp->f_cred->fsgid != info->gid) ^
!!(info->invert & IP6T_OWNER_GID))
return false;
return true;
}
static bool
owner_mt(const struct sk_buff *skb, const struct xt_match_param *par)
@ -107,81 +52,30 @@ owner_mt(const struct sk_buff *skb, const struct xt_match_param *par)
return true;
}
static bool owner_mt_check_v0(const struct xt_mtchk_param *par)
{
const struct ipt_owner_info *info = par->matchinfo;
if (info->match & (IPT_OWNER_PID | IPT_OWNER_SID | IPT_OWNER_COMM)) {
printk(KERN_WARNING KBUILD_MODNAME
": PID, SID and command matching is not "
"supported anymore\n");
return false;
}
return true;
}
static bool owner_mt6_check_v0(const struct xt_mtchk_param *par)
{
const struct ip6t_owner_info *info = par->matchinfo;
if (info->match & (IP6T_OWNER_PID | IP6T_OWNER_SID)) {
printk(KERN_WARNING KBUILD_MODNAME
": PID and SID matching is not supported anymore\n");
return false;
}
return true;
}
static struct xt_match owner_mt_reg[] __read_mostly = {
{
.name = "owner",
.revision = 0,
.family = NFPROTO_IPV4,
.match = owner_mt_v0,
.matchsize = sizeof(struct ipt_owner_info),
.checkentry = owner_mt_check_v0,
.hooks = (1 << NF_INET_LOCAL_OUT) |
(1 << NF_INET_POST_ROUTING),
.me = THIS_MODULE,
},
{
.name = "owner",
.revision = 0,
.family = NFPROTO_IPV6,
.match = owner_mt6_v0,
.matchsize = sizeof(struct ip6t_owner_info),
.checkentry = owner_mt6_check_v0,
.hooks = (1 << NF_INET_LOCAL_OUT) |
(1 << NF_INET_POST_ROUTING),
.me = THIS_MODULE,
},
{
.name = "owner",
.revision = 1,
.family = NFPROTO_UNSPEC,
.match = owner_mt,
.matchsize = sizeof(struct xt_owner_match_info),
.hooks = (1 << NF_INET_LOCAL_OUT) |
(1 << NF_INET_POST_ROUTING),
.me = THIS_MODULE,
},
static struct xt_match owner_mt_reg __read_mostly = {
.name = "owner",
.revision = 1,
.family = NFPROTO_UNSPEC,
.match = owner_mt,
.matchsize = sizeof(struct xt_owner_match_info),
.hooks = (1 << NF_INET_LOCAL_OUT) |
(1 << NF_INET_POST_ROUTING),
.me = THIS_MODULE,
};
static int __init owner_mt_init(void)
{
return xt_register_matches(owner_mt_reg, ARRAY_SIZE(owner_mt_reg));
return xt_register_match(&owner_mt_reg);
}
static void __exit owner_mt_exit(void)
{
xt_unregister_matches(owner_mt_reg, ARRAY_SIZE(owner_mt_reg));
xt_unregister_match(&owner_mt_reg);
}
module_init(owner_mt_init);
module_exit(owner_mt_exit);
MODULE_AUTHOR("Jan Engelhardt <jengelh@computergmbh.de>");
MODULE_AUTHOR("Jan Engelhardt <jengelh@medozas.de>");
MODULE_DESCRIPTION("Xtables: socket owner matching");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_owner");

2
net/netlink/af_netlink.c
View File

@ -1705,7 +1705,7 @@ errout:
}
int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
struct nlmsghdr *nlh,
const struct nlmsghdr *nlh,
int (*dump)(struct sk_buff *skb,
struct netlink_callback *),
int (*done)(struct netlink_callback *))

2
net/sched/act_api.c
View File

@ -1011,7 +1011,7 @@ replay:
}
static struct nlattr *
find_dump_kind(struct nlmsghdr *n)
find_dump_kind(const struct nlmsghdr *n)
{
struct nlattr *tb1, *tb2[TCA_ACT_MAX+1];
struct nlattr *tb[TCA_ACT_MAX_PRIO + 1];