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WSL2-Linux-Kernel
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Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

This commit is contained in:
Linus Torvalds 2005-11-09 13:40:21 -08:00
Родитель 8ca2bdc7a9 9f0ede52a0
Коммит cad8e94436
8 изменённых файлов: 92 добавлений и 72 удалений
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2
include/linux/netfilter/nfnetlink.h
Просмотреть файл

@ -146,7 +146,7 @@ extern void nfnl_unlock(void);
extern int nfnetlink_subsys_register(struct nfnetlink_subsystem *n);
extern int nfnetlink_subsys_unregister(struct nfnetlink_subsystem *n);
extern int nfattr_parse(struct nfattr *tb[], int maxattr,
extern void nfattr_parse(struct nfattr *tb[], int maxattr,
struct nfattr *nfa, int len);
#define nfattr_parse_nested(tb, max, nfa) \

83
net/ipv4/netfilter/ip_conntrack_netlink.c
Просмотреть файл

@ -28,11 +28,8 @@
#include <linux/netlink.h>
#include <linux/spinlock.h>
#include <linux/notifier.h>
#include <linux/rtnetlink.h>
#include <linux/netfilter.h>
#include <linux/netfilter_ipv4.h>
#include <linux/netfilter_ipv4/ip_tables.h>
#include <linux/netfilter_ipv4/ip_conntrack.h>
#include <linux/netfilter_ipv4/ip_conntrack_core.h>
#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
@ -58,14 +55,17 @@ ctnetlink_dump_tuples_proto(struct sk_buff *skb,
const struct ip_conntrack_tuple *tuple)
{
struct ip_conntrack_protocol *proto;
int ret = 0;
NFA_PUT(skb, CTA_PROTO_NUM, sizeof(u_int8_t), &tuple->dst.protonum);
proto = ip_conntrack_proto_find_get(tuple->dst.protonum);
if (proto && proto->tuple_to_nfattr)
return proto->tuple_to_nfattr(skb, tuple);
if (likely(proto && proto->tuple_to_nfattr)) {
ret = proto->tuple_to_nfattr(skb, tuple);
ip_conntrack_proto_put(proto);
}
return 0;
return ret;
nfattr_failure:
return -1;
@ -175,7 +175,7 @@ ctnetlink_dump_counters(struct sk_buff *skb, const struct ip_conntrack *ct,
{
enum ctattr_type type = dir ? CTA_COUNTERS_REPLY: CTA_COUNTERS_ORIG;
struct nfattr *nest_count = NFA_NEST(skb, type);
u_int64_t tmp;
u_int32_t tmp;
tmp = htonl(ct->counters[dir].packets);
NFA_PUT(skb, CTA_COUNTERS32_PACKETS, sizeof(u_int32_t), &tmp);
@ -479,9 +479,7 @@ ctnetlink_parse_tuple_ip(struct nfattr *attr, struct ip_conntrack_tuple *tuple)
DEBUGP("entered %s\n", __FUNCTION__);
if (nfattr_parse_nested(tb, CTA_IP_MAX, attr) < 0)
goto nfattr_failure;
nfattr_parse_nested(tb, CTA_IP_MAX, attr);
if (nfattr_bad_size(tb, CTA_IP_MAX, cta_min_ip))
return -EINVAL;
@ -497,9 +495,6 @@ ctnetlink_parse_tuple_ip(struct nfattr *attr, struct ip_conntrack_tuple *tuple)
DEBUGP("leaving\n");
return 0;
nfattr_failure:
return -1;
}
static const int cta_min_proto[CTA_PROTO_MAX] = {
@ -521,8 +516,7 @@ ctnetlink_parse_tuple_proto(struct nfattr *attr,
DEBUGP("entered %s\n", __FUNCTION__);
if (nfattr_parse_nested(tb, CTA_PROTO_MAX, attr) < 0)
goto nfattr_failure;
nfattr_parse_nested(tb, CTA_PROTO_MAX, attr);
if (nfattr_bad_size(tb, CTA_PROTO_MAX, cta_min_proto))
return -EINVAL;
@ -539,9 +533,6 @@ ctnetlink_parse_tuple_proto(struct nfattr *attr,
}
return ret;
nfattr_failure:
return -1;
}
static inline int
@ -555,8 +546,7 @@ ctnetlink_parse_tuple(struct nfattr *cda[], struct ip_conntrack_tuple *tuple,
memset(tuple, 0, sizeof(*tuple));
if (nfattr_parse_nested(tb, CTA_TUPLE_MAX, cda[type-1]) < 0)
goto nfattr_failure;
nfattr_parse_nested(tb, CTA_TUPLE_MAX, cda[type-1]);
if (!tb[CTA_TUPLE_IP-1])
return -EINVAL;
@ -583,9 +573,6 @@ ctnetlink_parse_tuple(struct nfattr *cda[], struct ip_conntrack_tuple *tuple,
DEBUGP("leaving\n");
return 0;
nfattr_failure:
return -1;
}
#ifdef CONFIG_IP_NF_NAT_NEEDED
@ -603,11 +590,10 @@ static int ctnetlink_parse_nat_proto(struct nfattr *attr,
DEBUGP("entered %s\n", __FUNCTION__);
if (nfattr_parse_nested(tb, CTA_PROTONAT_MAX, attr) < 0)
goto nfattr_failure;
nfattr_parse_nested(tb, CTA_PROTONAT_MAX, attr);
if (nfattr_bad_size(tb, CTA_PROTONAT_MAX, cta_min_protonat))
goto nfattr_failure;
return -EINVAL;
npt = ip_nat_proto_find_get(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum);
if (!npt)
@ -626,9 +612,6 @@ static int ctnetlink_parse_nat_proto(struct nfattr *attr,
DEBUGP("leaving\n");
return 0;
nfattr_failure:
return -1;
}
static inline int
@ -642,8 +625,7 @@ ctnetlink_parse_nat(struct nfattr *cda[],
memset(range, 0, sizeof(*range));
if (nfattr_parse_nested(tb, CTA_NAT_MAX, cda[CTA_NAT-1]) < 0)
goto nfattr_failure;
nfattr_parse_nested(tb, CTA_NAT_MAX, cda[CTA_NAT-1]);
if (tb[CTA_NAT_MINIP-1])
range->min_ip = *(u_int32_t *)NFA_DATA(tb[CTA_NAT_MINIP-1]);
@ -665,9 +647,6 @@ ctnetlink_parse_nat(struct nfattr *cda[],
DEBUGP("leaving\n");
return 0;
nfattr_failure:
return -1;
}
#endif
@ -678,8 +657,7 @@ ctnetlink_parse_help(struct nfattr *attr, char **helper_name)
DEBUGP("entered %s\n", __FUNCTION__);
if (nfattr_parse_nested(tb, CTA_HELP_MAX, attr) < 0)
goto nfattr_failure;
nfattr_parse_nested(tb, CTA_HELP_MAX, attr);
if (!tb[CTA_HELP_NAME-1])
return -EINVAL;
@ -687,9 +665,6 @@ ctnetlink_parse_help(struct nfattr *attr, char **helper_name)
*helper_name = NFA_DATA(tb[CTA_HELP_NAME-1]);
return 0;
nfattr_failure:
return -1;
}
static int
@ -804,7 +779,7 @@ ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb,
ct = tuplehash_to_ctrack(h);
err = -ENOMEM;
skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_ATOMIC);
skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
if (!skb2) {
ip_conntrack_put(ct);
return -ENOMEM;
@ -827,7 +802,7 @@ ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb,
free:
kfree_skb(skb2);
out:
return -1;
return err;
}
static inline int
@ -957,8 +932,7 @@ ctnetlink_change_protoinfo(struct ip_conntrack *ct, struct nfattr *cda[])
u_int16_t npt = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum;
int err = 0;
if (nfattr_parse_nested(tb, CTA_PROTOINFO_MAX, attr) < 0)
goto nfattr_failure;
nfattr_parse_nested(tb, CTA_PROTOINFO_MAX, attr);
proto = ip_conntrack_proto_find_get(npt);
if (!proto)
@ -969,9 +943,6 @@ ctnetlink_change_protoinfo(struct ip_conntrack *ct, struct nfattr *cda[])
ip_conntrack_proto_put(proto);
return err;
nfattr_failure:
return -ENOMEM;
}
static int
@ -1005,6 +976,11 @@ ctnetlink_change_conntrack(struct ip_conntrack *ct, struct nfattr *cda[])
return err;
}
#if defined(CONFIG_IP_NF_CONNTRACK_MARK)
if (cda[CTA_MARK-1])
ct->mark = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_MARK-1]));
#endif
DEBUGP("all done\n");
return 0;
}
@ -1048,6 +1024,11 @@ ctnetlink_create_conntrack(struct nfattr *cda[],
if (ct->helper)
ip_conntrack_helper_put(ct->helper);
#if defined(CONFIG_IP_NF_CONNTRACK_MARK)
if (cda[CTA_MARK-1])
ct->mark = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_MARK-1]));
#endif
DEBUGP("conntrack with id %u inserted\n", ct->id);
return 0;
@ -1312,6 +1293,14 @@ ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb,
if (!exp)
return -ENOENT;
if (cda[CTA_EXPECT_ID-1]) {
u_int32_t id = *(u_int32_t *)NFA_DATA(cda[CTA_EXPECT_ID-1]);
if (exp->id != ntohl(id)) {
ip_conntrack_expect_put(exp);
return -ENOENT;
}
}
err = -ENOMEM;
skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
if (!skb2)
@ -1554,6 +1543,8 @@ static struct nfnetlink_subsystem ctnl_exp_subsys = {
.cb = ctnl_exp_cb,
};
MODULE_ALIAS_NFNL_SUBSYS(NFNL_SUBSYS_CTNETLINK);
static int __init ctnetlink_init(void)
{
int ret;

15
net/ipv4/netfilter/ip_conntrack_proto_icmp.c
Просмотреть файл

@ -151,13 +151,13 @@ icmp_error_message(struct sk_buff *skb,
/* Not enough header? */
inside = skb_header_pointer(skb, skb->nh.iph->ihl*4, sizeof(_in), &_in);
if (inside == NULL)
return NF_ACCEPT;
return -NF_ACCEPT;
/* Ignore ICMP's containing fragments (shouldn't happen) */
if (inside->ip.frag_off & htons(IP_OFFSET)) {
DEBUGP("icmp_error_track: fragment of proto %u\n",
inside->ip.protocol);
return NF_ACCEPT;
return -NF_ACCEPT;
}
innerproto = ip_conntrack_proto_find_get(inside->ip.protocol);
@ -166,7 +166,7 @@ icmp_error_message(struct sk_buff *skb,
if (!ip_ct_get_tuple(&inside->ip, skb, dataoff, &origtuple, innerproto)) {
DEBUGP("icmp_error: ! get_tuple p=%u", inside->ip.protocol);
ip_conntrack_proto_put(innerproto);
return NF_ACCEPT;
return -NF_ACCEPT;
}
/* Ordinarily, we'd expect the inverted tupleproto, but it's
@ -174,7 +174,7 @@ icmp_error_message(struct sk_buff *skb,
if (!ip_ct_invert_tuple(&innertuple, &origtuple, innerproto)) {
DEBUGP("icmp_error_track: Can't invert tuple\n");
ip_conntrack_proto_put(innerproto);
return NF_ACCEPT;
return -NF_ACCEPT;
}
ip_conntrack_proto_put(innerproto);
@ -190,7 +190,7 @@ icmp_error_message(struct sk_buff *skb,
if (!h) {
DEBUGP("icmp_error_track: no match\n");
return NF_ACCEPT;
return -NF_ACCEPT;
}
/* Reverse direction from that found */
if (DIRECTION(h) != IP_CT_DIR_REPLY)
@ -296,7 +296,8 @@ static int icmp_nfattr_to_tuple(struct nfattr *tb[],
struct ip_conntrack_tuple *tuple)
{
if (!tb[CTA_PROTO_ICMP_TYPE-1]
|| !tb[CTA_PROTO_ICMP_CODE-1])
|| !tb[CTA_PROTO_ICMP_CODE-1]
|| !tb[CTA_PROTO_ICMP_ID-1])
return -1;
tuple->dst.u.icmp.type =
@ -304,7 +305,7 @@ static int icmp_nfattr_to_tuple(struct nfattr *tb[],
tuple->dst.u.icmp.code =
*(u_int8_t *)NFA_DATA(tb[CTA_PROTO_ICMP_CODE-1]);
tuple->src.u.icmp.id =
*(u_int8_t *)NFA_DATA(tb[CTA_PROTO_ICMP_ID-1]);
*(u_int16_t *)NFA_DATA(tb[CTA_PROTO_ICMP_ID-1]);
return 0;
}

11
net/ipv4/netfilter/ip_conntrack_proto_tcp.c
Просмотреть файл

@ -362,8 +362,12 @@ static int nfattr_to_tcp(struct nfattr *cda[], struct ip_conntrack *ct)
struct nfattr *attr = cda[CTA_PROTOINFO_TCP-1];
struct nfattr *tb[CTA_PROTOINFO_TCP_MAX];
if (nfattr_parse_nested(tb, CTA_PROTOINFO_TCP_MAX, attr) < 0)
goto nfattr_failure;
/* updates could not contain anything about the private
* protocol info, in that case skip the parsing */
if (!attr)
return 0;
nfattr_parse_nested(tb, CTA_PROTOINFO_TCP_MAX, attr);
if (!tb[CTA_PROTOINFO_TCP_STATE-1])
return -EINVAL;
@ -374,9 +378,6 @@ static int nfattr_to_tcp(struct nfattr *cda[], struct ip_conntrack *ct)
write_unlock_bh(&tcp_lock);
return 0;
nfattr_failure:
return -1;
}
#endif

28
net/ipv4/netfilter/ip_nat_helper_pptp.c
Просмотреть файл

@ -73,6 +73,7 @@ static void pptp_nat_expected(struct ip_conntrack *ct,
struct ip_conntrack_tuple t;
struct ip_ct_pptp_master *ct_pptp_info;
struct ip_nat_pptp *nat_pptp_info;
struct ip_nat_range range;
ct_pptp_info = &master->help.ct_pptp_info;
nat_pptp_info = &master->nat.help.nat_pptp_info;
@ -110,7 +111,30 @@ static void pptp_nat_expected(struct ip_conntrack *ct,
DEBUGP("not found!\n");
}
ip_nat_follow_master(ct, exp);
/* This must be a fresh one. */
BUG_ON(ct->status & IPS_NAT_DONE_MASK);
/* Change src to where master sends to */
range.flags = IP_NAT_RANGE_MAP_IPS;
range.min_ip = range.max_ip
= ct->master->tuplehash[!exp->dir].tuple.dst.ip;
if (exp->dir == IP_CT_DIR_ORIGINAL) {
range.flags |= IP_NAT_RANGE_PROTO_SPECIFIED;
range.min = range.max = exp->saved_proto;
}
/* hook doesn't matter, but it has to do source manip */
ip_nat_setup_info(ct, &range, NF_IP_POST_ROUTING);
/* For DST manip, map port here to where it's expected. */
range.flags = IP_NAT_RANGE_MAP_IPS;
range.min_ip = range.max_ip
= ct->master->tuplehash[!exp->dir].tuple.src.ip;
if (exp->dir == IP_CT_DIR_REPLY) {
range.flags |= IP_NAT_RANGE_PROTO_SPECIFIED;
range.min = range.max = exp->saved_proto;
}
/* hook doesn't matter, but it has to do destination manip */
ip_nat_setup_info(ct, &range, NF_IP_PRE_ROUTING);
}
/* outbound packets == from PNS to PAC */
@ -213,7 +237,7 @@ pptp_exp_gre(struct ip_conntrack_expect *expect_orig,
/* alter expectation for PNS->PAC direction */
invert_tuplepr(&inv_t, &expect_orig->tuple);
expect_orig->saved_proto.gre.key = htons(nat_pptp_info->pac_call_id);
expect_orig->saved_proto.gre.key = htons(ct_pptp_info->pns_call_id);
expect_orig->tuple.src.u.gre.key = htons(nat_pptp_info->pns_call_id);
expect_orig->tuple.dst.u.gre.key = htons(ct_pptp_info->pac_call_id);
expect_orig->dir = IP_CT_DIR_ORIGINAL;

3
net/ipv6/addrconf.c
Просмотреть файл

@ -1022,6 +1022,7 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev,
continue;
}
#ifdef CONFIG_IPV6_PRIVACY
/* Rule 7: Prefer public address
* Note: prefer temprary address if use_tempaddr >= 2
*/
@ -1042,7 +1043,7 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev,
if (hiscore.attrs & IPV6_SADDR_SCORE_PRIVACY)
continue;
}
#endif
/* Rule 8: Use longest matching prefix */
if (hiscore.rule < 8)
hiscore.matchlen = ipv6_addr_diff(&ifa_result->addr, daddr);

1
net/ipv6/ip6_tunnel.c
Просмотреть файл

@ -525,6 +525,7 @@ ip6ip6_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
if ((t = ip6ip6_tnl_lookup(&ipv6h->saddr, &ipv6h->daddr)) != NULL) {
if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
read_unlock(&ip6ip6_lock);
kfree_skb(skb);
return 0;
}

21
net/netfilter/nfnetlink.c
Просмотреть файл

@ -128,7 +128,7 @@ void __nfa_fill(struct sk_buff *skb, int attrtype, int attrlen,
memset(NFA_DATA(nfa) + attrlen, 0, NFA_ALIGN(size) - size);
}
int nfattr_parse(struct nfattr *tb[], int maxattr, struct nfattr *nfa, int len)
void nfattr_parse(struct nfattr *tb[], int maxattr, struct nfattr *nfa, int len)
{
memset(tb, 0, sizeof(struct nfattr *) * maxattr);
@ -138,8 +138,6 @@ int nfattr_parse(struct nfattr *tb[], int maxattr, struct nfattr *nfa, int len)
tb[flavor-1] = nfa;
nfa = NFA_NEXT(nfa, len);
}
return 0;
}
/**
@ -242,15 +240,18 @@ static inline int nfnetlink_rcv_msg(struct sk_buff *skb,
ss = nfnetlink_get_subsys(type);
if (!ss) {
#ifdef CONFIG_KMOD
/* don't call nfnl_shunlock, since it would reenter
* with further packet processing */
up(&nfnl_sem);
request_module("nfnetlink-subsys-%d", NFNL_SUBSYS_ID(type));
nfnl_shlock();
ss = nfnetlink_get_subsys(type);
if (cap_raised(NETLINK_CB(skb).eff_cap, CAP_NET_ADMIN)) {
/* don't call nfnl_shunlock, since it would reenter
* with further packet processing */
up(&nfnl_sem);
request_module("nfnetlink-subsys-%d",
NFNL_SUBSYS_ID(type));
nfnl_shlock();
ss = nfnetlink_get_subsys(type);
}
if (!ss)
#endif
goto err_inval;
goto err_inval;
}
nc = nfnetlink_find_client(type, ss);