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-rw-r--r--include/net/inet_frag.h60
-rw-r--r--include/net/ip.h13
-rw-r--r--include/net/ip_vs.h13
-rw-r--r--include/net/ipv6.h21
-rw-r--r--include/net/netfilter/ipv6/nf_conntrack_ipv6.h5
-rw-r--r--include/net/netfilter/nf_conntrack_core.h10
-rw-r--r--include/net/netfilter/nf_conntrack_helper.h2
-rw-r--r--include/net/netfilter/nf_nat_core.h4
-rw-r--r--include/net/netfilter/nf_nat_helper.h6
-rw-r--r--include/net/netfilter/nf_nat_protocol.h2
-rw-r--r--include/net/netfilter/nf_nat_rule.h2
-rw-r--r--include/net/protocol.h2
-rw-r--r--include/net/xfrm.h2
13 files changed, 103 insertions, 39 deletions
diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
new file mode 100644
index 000000000000..911c2cd02941
--- /dev/null
+++ b/include/net/inet_frag.h
@@ -0,0 +1,60 @@
+#ifndef __NET_FRAG_H__
+#define __NET_FRAG_H__
+
+struct inet_frag_queue {
+ struct hlist_node list;
+ struct list_head lru_list; /* lru list member */
+ spinlock_t lock;
+ atomic_t refcnt;
+ struct timer_list timer; /* when will this queue expire? */
+ struct sk_buff *fragments; /* list of received fragments */
+ ktime_t stamp;
+ int len; /* total length of orig datagram */
+ int meat;
+ __u8 last_in; /* first/last segment arrived? */
+
+#define COMPLETE 4
+#define FIRST_IN 2
+#define LAST_IN 1
+};
+
+#define INETFRAGS_HASHSZ 64
+
+struct inet_frags_ctl {
+ int high_thresh;
+ int low_thresh;
+ int timeout;
+ int secret_interval;
+};
+
+struct inet_frags {
+ struct list_head lru_list;
+ struct hlist_head hash[INETFRAGS_HASHSZ];
+ rwlock_t lock;
+ u32 rnd;
+ int nqueues;
+ int qsize;
+ atomic_t mem;
+ struct timer_list secret_timer;
+ struct inet_frags_ctl *ctl;
+
+ unsigned int (*hashfn)(struct inet_frag_queue *);
+ void (*destructor)(struct inet_frag_queue *);
+ void (*skb_free)(struct sk_buff *);
+};
+
+void inet_frags_init(struct inet_frags *);
+void inet_frags_fini(struct inet_frags *);
+
+void inet_frag_kill(struct inet_frag_queue *q, struct inet_frags *f);
+void inet_frag_destroy(struct inet_frag_queue *q,
+ struct inet_frags *f, int *work);
+int inet_frag_evictor(struct inet_frags *f);
+
+static inline void inet_frag_put(struct inet_frag_queue *q, struct inet_frags *f)
+{
+ if (atomic_dec_and_test(&q->refcnt))
+ inet_frag_destroy(q, f, NULL);
+}
+
+#endif
diff --git a/include/net/ip.h b/include/net/ip.h
index 3af3ed9d320b..840dd91b513b 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -160,6 +160,7 @@ DECLARE_SNMP_STAT(struct ipstats_mib, ip_statistics);
#define IP_INC_STATS(field) SNMP_INC_STATS(ip_statistics, field)
#define IP_INC_STATS_BH(field) SNMP_INC_STATS_BH(ip_statistics, field)
#define IP_INC_STATS_USER(field) SNMP_INC_STATS_USER(ip_statistics, field)
+#define IP_ADD_STATS_BH(field, val) SNMP_ADD_STATS_BH(ip_statistics, field, val)
DECLARE_SNMP_STAT(struct linux_mib, net_statistics);
#define NET_INC_STATS(field) SNMP_INC_STATS(net_statistics, field)
#define NET_INC_STATS_BH(field) SNMP_INC_STATS_BH(net_statistics, field)
@@ -177,10 +178,8 @@ extern int sysctl_ip_default_ttl;
extern int sysctl_ip_nonlocal_bind;
/* From ip_fragment.c */
-extern int sysctl_ipfrag_high_thresh;
-extern int sysctl_ipfrag_low_thresh;
-extern int sysctl_ipfrag_time;
-extern int sysctl_ipfrag_secret_interval;
+struct inet_frags_ctl;
+extern struct inet_frags_ctl ip4_frags_ctl;
extern int sysctl_ipfrag_max_dist;
/* From inetpeer.c */
@@ -332,9 +331,9 @@ enum ip_defrag_users
IP_DEFRAG_VS_FWD
};
-struct sk_buff *ip_defrag(struct sk_buff *skb, u32 user);
-extern int ip_frag_nqueues;
-extern atomic_t ip_frag_mem;
+int ip_defrag(struct sk_buff *skb, u32 user);
+int ip_frag_mem(void);
+int ip_frag_nqueues(void);
/*
* Functions provided by ip_forward.c
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 672564e5a81d..41870564df8e 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -464,10 +464,10 @@ struct ip_vs_protocol {
unsigned int proto_off,
int inverse);
- int (*snat_handler)(struct sk_buff **pskb,
+ int (*snat_handler)(struct sk_buff *skb,
struct ip_vs_protocol *pp, struct ip_vs_conn *cp);
- int (*dnat_handler)(struct sk_buff **pskb,
+ int (*dnat_handler)(struct sk_buff *skb,
struct ip_vs_protocol *pp, struct ip_vs_conn *cp);
int (*csum_check)(struct sk_buff *skb, struct ip_vs_protocol *pp);
@@ -654,11 +654,11 @@ struct ip_vs_app
/* output hook: return false if can't linearize. diff set for TCP. */
int (*pkt_out)(struct ip_vs_app *, struct ip_vs_conn *,
- struct sk_buff **, int *diff);
+ struct sk_buff *, int *diff);
/* input hook: return false if can't linearize. diff set for TCP. */
int (*pkt_in)(struct ip_vs_app *, struct ip_vs_conn *,
- struct sk_buff **, int *diff);
+ struct sk_buff *, int *diff);
/* ip_vs_app initializer */
int (*init_conn)(struct ip_vs_app *, struct ip_vs_conn *);
@@ -832,8 +832,8 @@ register_ip_vs_app_inc(struct ip_vs_app *app, __u16 proto, __u16 port);
extern int ip_vs_app_inc_get(struct ip_vs_app *inc);
extern void ip_vs_app_inc_put(struct ip_vs_app *inc);
-extern int ip_vs_app_pkt_out(struct ip_vs_conn *, struct sk_buff **pskb);
-extern int ip_vs_app_pkt_in(struct ip_vs_conn *, struct sk_buff **pskb);
+extern int ip_vs_app_pkt_out(struct ip_vs_conn *, struct sk_buff *skb);
+extern int ip_vs_app_pkt_in(struct ip_vs_conn *, struct sk_buff *skb);
extern int ip_vs_skb_replace(struct sk_buff *skb, gfp_t pri,
char *o_buf, int o_len, char *n_buf, int n_len);
extern int ip_vs_app_init(void);
@@ -984,7 +984,6 @@ static inline char ip_vs_fwd_tag(struct ip_vs_conn *cp)
return fwd;
}
-extern int ip_vs_make_skb_writable(struct sk_buff **pskb, int len);
extern void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
struct ip_vs_conn *cp, int dir);
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 31b3f1b45a2b..cc796cbc1b26 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -120,12 +120,21 @@ extern int sysctl_mld_max_msf;
SNMP_INC_STATS##modifier(statname##_statistics, (field)); \
})
+#define _DEVADD(statname, modifier, idev, field, val) \
+({ \
+ struct inet6_dev *_idev = (idev); \
+ if (likely(_idev != NULL)) \
+ SNMP_ADD_STATS##modifier((_idev)->stats.statname, (field), (val)); \
+ SNMP_ADD_STATS##modifier(statname##_statistics, (field), (val));\
+})
+
/* MIBs */
DECLARE_SNMP_STAT(struct ipstats_mib, ipv6_statistics);
#define IP6_INC_STATS(idev,field) _DEVINC(ipv6, , idev, field)
#define IP6_INC_STATS_BH(idev,field) _DEVINC(ipv6, _BH, idev, field)
#define IP6_INC_STATS_USER(idev,field) _DEVINC(ipv6, _USER, idev, field)
+#define IP6_ADD_STATS_BH(idev,field,val) _DEVADD(ipv6, _BH, idev, field, val)
DECLARE_SNMP_STAT(struct icmpv6_mib, icmpv6_statistics);
DECLARE_SNMP_STAT(struct icmpv6msg_mib, icmpv6msg_statistics);
@@ -240,7 +249,7 @@ extern int ip6_ra_control(struct sock *sk, int sel,
void (*destructor)(struct sock *));
-extern int ipv6_parse_hopopts(struct sk_buff **skbp);
+extern int ipv6_parse_hopopts(struct sk_buff *skb);
extern struct ipv6_txoptions * ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt);
extern struct ipv6_txoptions * ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,
@@ -252,8 +261,8 @@ struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
extern int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb);
-extern int ip6_frag_nqueues;
-extern atomic_t ip6_frag_mem;
+int ip6_frag_nqueues(void);
+int ip6_frag_mem(void);
#define IPV6_FRAG_TIMEOUT (60*HZ) /* 60 seconds */
@@ -565,10 +574,8 @@ extern int inet6_hash_connect(struct inet_timewait_death_row *death_row,
/*
* reassembly.c
*/
-extern int sysctl_ip6frag_high_thresh;
-extern int sysctl_ip6frag_low_thresh;
-extern int sysctl_ip6frag_time;
-extern int sysctl_ip6frag_secret_interval;
+struct inet_frags_ctl;
+extern struct inet_frags_ctl ip6_frags_ctl;
extern const struct proto_ops inet6_stream_ops;
extern const struct proto_ops inet6_dgram_ops;
diff --git a/include/net/netfilter/ipv6/nf_conntrack_ipv6.h b/include/net/netfilter/ipv6/nf_conntrack_ipv6.h
index 070d12cb4634..f703533fb4db 100644
--- a/include/net/netfilter/ipv6/nf_conntrack_ipv6.h
+++ b/include/net/netfilter/ipv6/nf_conntrack_ipv6.h
@@ -15,8 +15,7 @@ extern void nf_ct_frag6_output(unsigned int hooknum, struct sk_buff *skb,
struct net_device *out,
int (*okfn)(struct sk_buff *));
-extern unsigned int nf_ct_frag6_timeout;
-extern unsigned int nf_ct_frag6_low_thresh;
-extern unsigned int nf_ct_frag6_high_thresh;
+struct inet_frags_ctl;
+extern struct inet_frags_ctl nf_frags_ctl;
#endif /* _NF_CONNTRACK_IPV6_H*/
diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index 4056f5f08da1..a532e7b5ed6a 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -22,7 +22,7 @@
of connection tracking. */
extern unsigned int nf_conntrack_in(int pf,
unsigned int hooknum,
- struct sk_buff **pskb);
+ struct sk_buff *skb);
extern int nf_conntrack_init(void);
extern void nf_conntrack_cleanup(void);
@@ -60,17 +60,17 @@ nf_ct_invert_tuple(struct nf_conntrack_tuple *inverse,
extern struct nf_conntrack_tuple_hash *
nf_conntrack_find_get(const struct nf_conntrack_tuple *tuple);
-extern int __nf_conntrack_confirm(struct sk_buff **pskb);
+extern int __nf_conntrack_confirm(struct sk_buff *skb);
/* Confirm a connection: returns NF_DROP if packet must be dropped. */
-static inline int nf_conntrack_confirm(struct sk_buff **pskb)
+static inline int nf_conntrack_confirm(struct sk_buff *skb)
{
- struct nf_conn *ct = (struct nf_conn *)(*pskb)->nfct;
+ struct nf_conn *ct = (struct nf_conn *)skb->nfct;
int ret = NF_ACCEPT;
if (ct) {
if (!nf_ct_is_confirmed(ct) && !nf_ct_is_dying(ct))
- ret = __nf_conntrack_confirm(pskb);
+ ret = __nf_conntrack_confirm(skb);
nf_ct_deliver_cached_events(ct);
}
return ret;
diff --git a/include/net/netfilter/nf_conntrack_helper.h b/include/net/netfilter/nf_conntrack_helper.h
index 0dcc4c828ce9..d7b2d5483a71 100644
--- a/include/net/netfilter/nf_conntrack_helper.h
+++ b/include/net/netfilter/nf_conntrack_helper.h
@@ -29,7 +29,7 @@ struct nf_conntrack_helper
/* Function to call when data passes; return verdict, or -1 to
invalidate. */
- int (*help)(struct sk_buff **pskb,
+ int (*help)(struct sk_buff *skb,
unsigned int protoff,
struct nf_conn *ct,
enum ip_conntrack_info conntrackinfo);
diff --git a/include/net/netfilter/nf_nat_core.h b/include/net/netfilter/nf_nat_core.h
index c3cd127ba4bb..f29eeb9777e0 100644
--- a/include/net/netfilter/nf_nat_core.h
+++ b/include/net/netfilter/nf_nat_core.h
@@ -10,12 +10,12 @@
extern unsigned int nf_nat_packet(struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned int hooknum,
- struct sk_buff **pskb);
+ struct sk_buff *skb);
extern int nf_nat_icmp_reply_translation(struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned int hooknum,
- struct sk_buff **pskb);
+ struct sk_buff *skb);
static inline int nf_nat_initialized(struct nf_conn *ct,
enum nf_nat_manip_type manip)
diff --git a/include/net/netfilter/nf_nat_helper.h b/include/net/netfilter/nf_nat_helper.h
index ec98ecf95fc8..58dd22687949 100644
--- a/include/net/netfilter/nf_nat_helper.h
+++ b/include/net/netfilter/nf_nat_helper.h
@@ -7,21 +7,21 @@
struct sk_buff;
/* These return true or false. */
-extern int nf_nat_mangle_tcp_packet(struct sk_buff **skb,
+extern int nf_nat_mangle_tcp_packet(struct sk_buff *skb,
struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned int match_offset,
unsigned int match_len,
const char *rep_buffer,
unsigned int rep_len);
-extern int nf_nat_mangle_udp_packet(struct sk_buff **skb,
+extern int nf_nat_mangle_udp_packet(struct sk_buff *skb,
struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned int match_offset,
unsigned int match_len,
const char *rep_buffer,
unsigned int rep_len);
-extern int nf_nat_seq_adjust(struct sk_buff **pskb,
+extern int nf_nat_seq_adjust(struct sk_buff *skb,
struct nf_conn *ct,
enum ip_conntrack_info ctinfo);
diff --git a/include/net/netfilter/nf_nat_protocol.h b/include/net/netfilter/nf_nat_protocol.h
index 14c7b2d7263c..04578bfe23e1 100644
--- a/include/net/netfilter/nf_nat_protocol.h
+++ b/include/net/netfilter/nf_nat_protocol.h
@@ -18,7 +18,7 @@ struct nf_nat_protocol
/* Translate a packet to the target according to manip type.
Return true if succeeded. */
- int (*manip_pkt)(struct sk_buff **pskb,
+ int (*manip_pkt)(struct sk_buff *skb,
unsigned int iphdroff,
const struct nf_conntrack_tuple *tuple,
enum nf_nat_manip_type maniptype);
diff --git a/include/net/netfilter/nf_nat_rule.h b/include/net/netfilter/nf_nat_rule.h
index f9743187d57f..75d1825031d7 100644
--- a/include/net/netfilter/nf_nat_rule.h
+++ b/include/net/netfilter/nf_nat_rule.h
@@ -6,7 +6,7 @@
extern int nf_nat_rule_init(void) __init;
extern void nf_nat_rule_cleanup(void);
-extern int nf_nat_rule_find(struct sk_buff **pskb,
+extern int nf_nat_rule_find(struct sk_buff *skb,
unsigned int hooknum,
const struct net_device *in,
const struct net_device *out,
diff --git a/include/net/protocol.h b/include/net/protocol.h
index 105bf12b0c79..1166ffb4b3ec 100644
--- a/include/net/protocol.h
+++ b/include/net/protocol.h
@@ -45,7 +45,7 @@ struct net_protocol {
#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
struct inet6_protocol
{
- int (*handler)(struct sk_buff **skb);
+ int (*handler)(struct sk_buff *skb);
void (*err_handler)(struct sk_buff *skb,
struct inet6_skb_parm *opt,
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 77be396ca633..0e844845f3f4 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1051,7 +1051,7 @@ extern int xfrm4_output(struct sk_buff *skb);
extern int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short family);
extern int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family);
extern int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi);
-extern int xfrm6_rcv(struct sk_buff **pskb);
+extern int xfrm6_rcv(struct sk_buff *skb);
extern int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
xfrm_address_t *saddr, u8 proto);
extern int xfrm6_tunnel_register(struct xfrm6_tunnel *handler, unsigned short family);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.