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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 17:40:34 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 17:40:34 +0900
commit42a2d923cc349583ebf6fdd52a7d35e1c2f7e6bd (patch)
tree2b2b0c03b5389c1301800119333967efafd994ca /net/dccp
parent5cbb3d216e2041700231bcfc383ee5f8b7fc8b74 (diff)
parent75ecab1df14d90e86cebef9ec5c76befde46e65f (diff)
downloadlinux-42a2d923cc349583ebf6fdd52a7d35e1c2f7e6bd.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: 1) The addition of nftables. No longer will we need protocol aware firewall filtering modules, it can all live in userspace. At the core of nftables is a, for lack of a better term, virtual machine that executes byte codes to inspect packet or metadata (arriving interface index, etc.) and make verdict decisions. Besides support for loading packet contents and comparing them, the interpreter supports lookups in various datastructures as fundamental operations. For example sets are supports, and therefore one could create a set of whitelist IP address entries which have ACCEPT verdicts attached to them, and use the appropriate byte codes to do such lookups. Since the interpreted code is composed in userspace, userspace can do things like optimize things before giving it to the kernel. Another major improvement is the capability of atomically updating portions of the ruleset. In the existing netfilter implementation, one has to update the entire rule set in order to make a change and this is very expensive. Userspace tools exist to create nftables rules using existing netfilter rule sets, but both kernel implementations will need to co-exist for quite some time as we transition from the old to the new stuff. Kudos to Patrick McHardy, Pablo Neira Ayuso, and others who have worked so hard on this. 2) Daniel Borkmann and Hannes Frederic Sowa made several improvements to our pseudo-random number generator, mostly used for things like UDP port randomization and netfitler, amongst other things. In particular the taus88 generater is updated to taus113, and test cases are added. 3) Support 64-bit rates in HTB and TBF schedulers, from Eric Dumazet and Yang Yingliang. 4) Add support for new 577xx tigon3 chips to tg3 driver, from Nithin Sujir. 5) Fix two fatal flaws in TCP dynamic right sizing, from Eric Dumazet, Neal Cardwell, and Yuchung Cheng. 6) Allow IP_TOS and IP_TTL to be specified in sendmsg() ancillary control message data, much like other socket option attributes. From Francesco Fusco. 7) Allow applications to specify a cap on the rate computed automatically by the kernel for pacing flows, via a new SO_MAX_PACING_RATE socket option. From Eric Dumazet. 8) Make the initial autotuned send buffer sizing in TCP more closely reflect actual needs, from Eric Dumazet. 9) Currently early socket demux only happens for TCP sockets, but we can do it for connected UDP sockets too. Implementation from Shawn Bohrer. 10) Refactor inet socket demux with the goal of improving hash demux performance for listening sockets. With the main goals being able to use RCU lookups on even request sockets, and eliminating the listening lock contention. From Eric Dumazet. 11) The bonding layer has many demuxes in it's fast path, and an RCU conversion was started back in 3.11, several changes here extend the RCU usage to even more locations. From Ding Tianhong and Wang Yufen, based upon suggestions by Nikolay Aleksandrov and Veaceslav Falico. 12) Allow stackability of segmentation offloads to, in particular, allow segmentation offloading over tunnels. From Eric Dumazet. 13) Significantly improve the handling of secret keys we input into the various hash functions in the inet hashtables, TCP fast open, as well as syncookies. From Hannes Frederic Sowa. The key fundamental operation is "net_get_random_once()" which uses static keys. Hannes even extended this to ipv4/ipv6 fragmentation handling and our generic flow dissector. 14) The generic driver layer takes care now to set the driver data to NULL on device removal, so it's no longer necessary for drivers to explicitly set it to NULL any more. Many drivers have been cleaned up in this way, from Jingoo Han. 15) Add a BPF based packet scheduler classifier, from Daniel Borkmann. 16) Improve CRC32 interfaces and generic SKB checksum iterators so that SCTP's checksumming can more cleanly be handled. Also from Daniel Borkmann. 17) Add a new PMTU discovery mode, IP_PMTUDISC_INTERFACE, which forces using the interface MTU value. This helps avoid PMTU attacks, particularly on DNS servers. From Hannes Frederic Sowa. 18) Use generic XPS for transmit queue steering rather than internal (re-)implementation in virtio-net. From Jason Wang. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits) random32: add test cases for taus113 implementation random32: upgrade taus88 generator to taus113 from errata paper random32: move rnd_state to linux/random.h random32: add prandom_reseed_late() and call when nonblocking pool becomes initialized random32: add periodic reseeding random32: fix off-by-one in seeding requirement PHY: Add RTL8201CP phy_driver to realtek xtsonic: add missing platform_set_drvdata() in xtsonic_probe() macmace: add missing platform_set_drvdata() in mace_probe() ethernet/arc/arc_emac: add missing platform_set_drvdata() in arc_emac_probe() ipv6: protect for_each_sk_fl_rcu in mem_check with rcu_read_lock_bh vlan: Implement vlan_dev_get_egress_qos_mask as an inline. ixgbe: add warning when max_vfs is out of range. igb: Update link modes display in ethtool netfilter: push reasm skb through instead of original frag skbs ip6_output: fragment outgoing reassembled skb properly MAINTAINERS: mv643xx_eth: take over maintainership from Lennart net_sched: tbf: support of 64bit rates ixgbe: deleting dfwd stations out of order can cause null ptr deref ixgbe: fix build err, num_rx_queues is only available with CONFIG_RPS ...
Diffstat (limited to 'net/dccp')
-rw-r--r--net/dccp/ackvec.h21
-rw-r--r--net/dccp/ccid.h18
-rw-r--r--net/dccp/ccids/lib/loss_interval.h8
-rw-r--r--net/dccp/ccids/lib/packet_history.h25
-rw-r--r--net/dccp/ccids/lib/tfrc.h22
-rw-r--r--net/dccp/dccp.h186
-rw-r--r--net/dccp/feat.h26
-rw-r--r--net/dccp/ipv4.c19
-rw-r--r--net/dccp/ipv6.c83
-rw-r--r--net/dccp/ipv6.h2
-rw-r--r--net/dccp/minisocks.c15
-rw-r--r--net/dccp/output.c4
-rw-r--r--net/dccp/proto.c4
13 files changed, 208 insertions, 225 deletions
diff --git a/net/dccp/ackvec.h b/net/dccp/ackvec.h
index a269aa7f7923..3284bfa988c0 100644
--- a/net/dccp/ackvec.h
+++ b/net/dccp/ackvec.h
@@ -101,16 +101,16 @@ struct dccp_ackvec_record {
u8 avr_ack_nonce:1;
};
-extern int dccp_ackvec_init(void);
-extern void dccp_ackvec_exit(void);
+int dccp_ackvec_init(void);
+void dccp_ackvec_exit(void);
-extern struct dccp_ackvec *dccp_ackvec_alloc(const gfp_t priority);
-extern void dccp_ackvec_free(struct dccp_ackvec *av);
+struct dccp_ackvec *dccp_ackvec_alloc(const gfp_t priority);
+void dccp_ackvec_free(struct dccp_ackvec *av);
-extern void dccp_ackvec_input(struct dccp_ackvec *av, struct sk_buff *skb);
-extern int dccp_ackvec_update_records(struct dccp_ackvec *av, u64 seq, u8 sum);
-extern void dccp_ackvec_clear_state(struct dccp_ackvec *av, const u64 ackno);
-extern u16 dccp_ackvec_buflen(const struct dccp_ackvec *av);
+void dccp_ackvec_input(struct dccp_ackvec *av, struct sk_buff *skb);
+int dccp_ackvec_update_records(struct dccp_ackvec *av, u64 seq, u8 sum);
+void dccp_ackvec_clear_state(struct dccp_ackvec *av, const u64 ackno);
+u16 dccp_ackvec_buflen(const struct dccp_ackvec *av);
static inline bool dccp_ackvec_is_empty(const struct dccp_ackvec *av)
{
@@ -133,7 +133,6 @@ struct dccp_ackvec_parsed {
struct list_head node;
};
-extern int dccp_ackvec_parsed_add(struct list_head *head,
- u8 *vec, u8 len, u8 nonce);
-extern void dccp_ackvec_parsed_cleanup(struct list_head *parsed_chunks);
+int dccp_ackvec_parsed_add(struct list_head *head, u8 *vec, u8 len, u8 nonce);
+void dccp_ackvec_parsed_cleanup(struct list_head *parsed_chunks);
#endif /* _ACKVEC_H */
diff --git a/net/dccp/ccid.h b/net/dccp/ccid.h
index fb85d371a8de..6eb837a47b5c 100644
--- a/net/dccp/ccid.h
+++ b/net/dccp/ccid.h
@@ -93,8 +93,8 @@ extern struct ccid_operations ccid2_ops;
extern struct ccid_operations ccid3_ops;
#endif
-extern int ccid_initialize_builtins(void);
-extern void ccid_cleanup_builtins(void);
+int ccid_initialize_builtins(void);
+void ccid_cleanup_builtins(void);
struct ccid {
struct ccid_operations *ccid_ops;
@@ -106,12 +106,12 @@ static inline void *ccid_priv(const struct ccid *ccid)
return (void *)ccid->ccid_priv;
}
-extern bool ccid_support_check(u8 const *ccid_array, u8 array_len);
-extern int ccid_get_builtin_ccids(u8 **ccid_array, u8 *array_len);
-extern int ccid_getsockopt_builtin_ccids(struct sock *sk, int len,
- char __user *, int __user *);
+bool ccid_support_check(u8 const *ccid_array, u8 array_len);
+int ccid_get_builtin_ccids(u8 **ccid_array, u8 *array_len);
+int ccid_getsockopt_builtin_ccids(struct sock *sk, int len,
+ char __user *, int __user *);
-extern struct ccid *ccid_new(const u8 id, struct sock *sk, bool rx);
+struct ccid *ccid_new(const u8 id, struct sock *sk, bool rx);
static inline int ccid_get_current_rx_ccid(struct dccp_sock *dp)
{
@@ -131,8 +131,8 @@ static inline int ccid_get_current_tx_ccid(struct dccp_sock *dp)
return ccid->ccid_ops->ccid_id;
}
-extern void ccid_hc_rx_delete(struct ccid *ccid, struct sock *sk);
-extern void ccid_hc_tx_delete(struct ccid *ccid, struct sock *sk);
+void ccid_hc_rx_delete(struct ccid *ccid, struct sock *sk);
+void ccid_hc_tx_delete(struct ccid *ccid, struct sock *sk);
/*
* Congestion control of queued data packets via CCID decision.
diff --git a/net/dccp/ccids/lib/loss_interval.h b/net/dccp/ccids/lib/loss_interval.h
index d1d2f5383b7d..57f631a86ccd 100644
--- a/net/dccp/ccids/lib/loss_interval.h
+++ b/net/dccp/ccids/lib/loss_interval.h
@@ -65,9 +65,9 @@ static inline u8 tfrc_lh_length(struct tfrc_loss_hist *lh)
struct tfrc_rx_hist;
-extern int tfrc_lh_interval_add(struct tfrc_loss_hist *, struct tfrc_rx_hist *,
- u32 (*first_li)(struct sock *), struct sock *);
-extern u8 tfrc_lh_update_i_mean(struct tfrc_loss_hist *lh, struct sk_buff *);
-extern void tfrc_lh_cleanup(struct tfrc_loss_hist *lh);
+int tfrc_lh_interval_add(struct tfrc_loss_hist *, struct tfrc_rx_hist *,
+ u32 (*first_li)(struct sock *), struct sock *);
+u8 tfrc_lh_update_i_mean(struct tfrc_loss_hist *lh, struct sk_buff *);
+void tfrc_lh_cleanup(struct tfrc_loss_hist *lh);
#endif /* _DCCP_LI_HIST_ */
diff --git a/net/dccp/ccids/lib/packet_history.h b/net/dccp/ccids/lib/packet_history.h
index 7ee4a9d9d335..ee362b0b630d 100644
--- a/net/dccp/ccids/lib/packet_history.h
+++ b/net/dccp/ccids/lib/packet_history.h
@@ -60,8 +60,8 @@ static inline struct tfrc_tx_hist_entry *
return head;
}
-extern int tfrc_tx_hist_add(struct tfrc_tx_hist_entry **headp, u64 seqno);
-extern void tfrc_tx_hist_purge(struct tfrc_tx_hist_entry **headp);
+int tfrc_tx_hist_add(struct tfrc_tx_hist_entry **headp, u64 seqno);
+void tfrc_tx_hist_purge(struct tfrc_tx_hist_entry **headp);
/* Subtraction a-b modulo-16, respects circular wrap-around */
#define SUB16(a, b) (((a) + 16 - (b)) & 0xF)
@@ -139,20 +139,17 @@ static inline bool tfrc_rx_hist_loss_pending(const struct tfrc_rx_hist *h)
return h->loss_count > 0;
}
-extern void tfrc_rx_hist_add_packet(struct tfrc_rx_hist *h,
- const struct sk_buff *skb, const u64 ndp);
+void tfrc_rx_hist_add_packet(struct tfrc_rx_hist *h, const struct sk_buff *skb,
+ const u64 ndp);
-extern int tfrc_rx_hist_duplicate(struct tfrc_rx_hist *h, struct sk_buff *skb);
+int tfrc_rx_hist_duplicate(struct tfrc_rx_hist *h, struct sk_buff *skb);
struct tfrc_loss_hist;
-extern int tfrc_rx_handle_loss(struct tfrc_rx_hist *h,
- struct tfrc_loss_hist *lh,
- struct sk_buff *skb, const u64 ndp,
- u32 (*first_li)(struct sock *sk),
- struct sock *sk);
-extern u32 tfrc_rx_hist_sample_rtt(struct tfrc_rx_hist *h,
- const struct sk_buff *skb);
-extern int tfrc_rx_hist_alloc(struct tfrc_rx_hist *h);
-extern void tfrc_rx_hist_purge(struct tfrc_rx_hist *h);
+int tfrc_rx_handle_loss(struct tfrc_rx_hist *h, struct tfrc_loss_hist *lh,
+ struct sk_buff *skb, const u64 ndp,
+ u32 (*first_li)(struct sock *sk), struct sock *sk);
+u32 tfrc_rx_hist_sample_rtt(struct tfrc_rx_hist *h, const struct sk_buff *skb);
+int tfrc_rx_hist_alloc(struct tfrc_rx_hist *h);
+void tfrc_rx_hist_purge(struct tfrc_rx_hist *h);
#endif /* _DCCP_PKT_HIST_ */
diff --git a/net/dccp/ccids/lib/tfrc.h b/net/dccp/ccids/lib/tfrc.h
index ed698c42a5fb..40ee7d62b652 100644
--- a/net/dccp/ccids/lib/tfrc.h
+++ b/net/dccp/ccids/lib/tfrc.h
@@ -55,21 +55,21 @@ static inline u32 tfrc_ewma(const u32 avg, const u32 newval, const u8 weight)
return avg ? (weight * avg + (10 - weight) * newval) / 10 : newval;
}
-extern u32 tfrc_calc_x(u16 s, u32 R, u32 p);
-extern u32 tfrc_calc_x_reverse_lookup(u32 fvalue);
-extern u32 tfrc_invert_loss_event_rate(u32 loss_event_rate);
+u32 tfrc_calc_x(u16 s, u32 R, u32 p);
+u32 tfrc_calc_x_reverse_lookup(u32 fvalue);
+u32 tfrc_invert_loss_event_rate(u32 loss_event_rate);
-extern int tfrc_tx_packet_history_init(void);
-extern void tfrc_tx_packet_history_exit(void);
-extern int tfrc_rx_packet_history_init(void);
-extern void tfrc_rx_packet_history_exit(void);
+int tfrc_tx_packet_history_init(void);
+void tfrc_tx_packet_history_exit(void);
+int tfrc_rx_packet_history_init(void);
+void tfrc_rx_packet_history_exit(void);
-extern int tfrc_li_init(void);
-extern void tfrc_li_exit(void);
+int tfrc_li_init(void);
+void tfrc_li_exit(void);
#ifdef CONFIG_IP_DCCP_TFRC_LIB
-extern int tfrc_lib_init(void);
-extern void tfrc_lib_exit(void);
+int tfrc_lib_init(void);
+void tfrc_lib_exit(void);
#else
#define tfrc_lib_init() (0)
#define tfrc_lib_exit()
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 708e75bf623d..30948784dd58 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -53,7 +53,7 @@ extern struct inet_hashinfo dccp_hashinfo;
extern struct percpu_counter dccp_orphan_count;
-extern void dccp_time_wait(struct sock *sk, int state, int timeo);
+void dccp_time_wait(struct sock *sk, int state, int timeo);
/*
* Set safe upper bounds for header and option length. Since Data Offset is 8
@@ -224,114 +224,108 @@ static inline void dccp_csum_outgoing(struct sk_buff *skb)
skb->csum = skb_checksum(skb, 0, (cov > skb->len)? skb->len : cov, 0);
}
-extern void dccp_v4_send_check(struct sock *sk, struct sk_buff *skb);
+void dccp_v4_send_check(struct sock *sk, struct sk_buff *skb);
-extern int dccp_retransmit_skb(struct sock *sk);
+int dccp_retransmit_skb(struct sock *sk);
-extern void dccp_send_ack(struct sock *sk);
-extern void dccp_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
- struct request_sock *rsk);
+void dccp_send_ack(struct sock *sk);
+void dccp_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
+ struct request_sock *rsk);
-extern void dccp_send_sync(struct sock *sk, const u64 seq,
- const enum dccp_pkt_type pkt_type);
+void dccp_send_sync(struct sock *sk, const u64 seq,
+ const enum dccp_pkt_type pkt_type);
/*
* TX Packet Dequeueing Interface
*/
-extern void dccp_qpolicy_push(struct sock *sk, struct sk_buff *skb);
-extern bool dccp_qpolicy_full(struct sock *sk);
-extern void dccp_qpolicy_drop(struct sock *sk, struct sk_buff *skb);
-extern struct sk_buff *dccp_qpolicy_top(struct sock *sk);
-extern struct sk_buff *dccp_qpolicy_pop(struct sock *sk);
-extern bool dccp_qpolicy_param_ok(struct sock *sk, __be32 param);
+void dccp_qpolicy_push(struct sock *sk, struct sk_buff *skb);
+bool dccp_qpolicy_full(struct sock *sk);
+void dccp_qpolicy_drop(struct sock *sk, struct sk_buff *skb);
+struct sk_buff *dccp_qpolicy_top(struct sock *sk);
+struct sk_buff *dccp_qpolicy_pop(struct sock *sk);
+bool dccp_qpolicy_param_ok(struct sock *sk, __be32 param);
/*
* TX Packet Output and TX Timers
*/
-extern void dccp_write_xmit(struct sock *sk);
-extern void dccp_write_space(struct sock *sk);
-extern void dccp_flush_write_queue(struct sock *sk, long *time_budget);
+void dccp_write_xmit(struct sock *sk);
+void dccp_write_space(struct sock *sk);
+void dccp_flush_write_queue(struct sock *sk, long *time_budget);
-extern void dccp_init_xmit_timers(struct sock *sk);
+void dccp_init_xmit_timers(struct sock *sk);
static inline void dccp_clear_xmit_timers(struct sock *sk)
{
inet_csk_clear_xmit_timers(sk);
}
-extern unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu);
+unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu);
-extern const char *dccp_packet_name(const int type);
+const char *dccp_packet_name(const int type);
-extern void dccp_set_state(struct sock *sk, const int state);
-extern void dccp_done(struct sock *sk);
+void dccp_set_state(struct sock *sk, const int state);
+void dccp_done(struct sock *sk);
-extern int dccp_reqsk_init(struct request_sock *rq, struct dccp_sock const *dp,
- struct sk_buff const *skb);
+int dccp_reqsk_init(struct request_sock *rq, struct dccp_sock const *dp,
+ struct sk_buff const *skb);
-extern int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb);
+int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb);
-extern struct sock *dccp_create_openreq_child(struct sock *sk,
- const struct request_sock *req,
- const struct sk_buff *skb);
+struct sock *dccp_create_openreq_child(struct sock *sk,
+ const struct request_sock *req,
+ const struct sk_buff *skb);
-extern int dccp_v4_do_rcv(struct sock *sk, struct sk_buff *skb);
+int dccp_v4_do_rcv(struct sock *sk, struct sk_buff *skb);
-extern struct sock *dccp_v4_request_recv_sock(struct sock *sk,
- struct sk_buff *skb,
- struct request_sock *req,
- struct dst_entry *dst);
-extern struct sock *dccp_check_req(struct sock *sk, struct sk_buff *skb,
- struct request_sock *req,
- struct request_sock **prev);
+struct sock *dccp_v4_request_recv_sock(struct sock *sk, struct sk_buff *skb,
+ struct request_sock *req,
+ struct dst_entry *dst);
+struct sock *dccp_check_req(struct sock *sk, struct sk_buff *skb,
+ struct request_sock *req,
+ struct request_sock **prev);
-extern int dccp_child_process(struct sock *parent, struct sock *child,
- struct sk_buff *skb);
-extern int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
- struct dccp_hdr *dh, unsigned int len);
-extern int dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
- const struct dccp_hdr *dh, const unsigned int len);
+int dccp_child_process(struct sock *parent, struct sock *child,
+ struct sk_buff *skb);
+int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
+ struct dccp_hdr *dh, unsigned int len);
+int dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
+ const struct dccp_hdr *dh, const unsigned int len);
-extern int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized);
-extern void dccp_destroy_sock(struct sock *sk);
+int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized);
+void dccp_destroy_sock(struct sock *sk);
-extern void dccp_close(struct sock *sk, long timeout);
-extern struct sk_buff *dccp_make_response(struct sock *sk,
- struct dst_entry *dst,
- struct request_sock *req);
+void dccp_close(struct sock *sk, long timeout);
+struct sk_buff *dccp_make_response(struct sock *sk, struct dst_entry *dst,
+ struct request_sock *req);
-extern int dccp_connect(struct sock *sk);
-extern int dccp_disconnect(struct sock *sk, int flags);
-extern int dccp_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen);
-extern int dccp_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen);
+int dccp_connect(struct sock *sk);
+int dccp_disconnect(struct sock *sk, int flags);
+int dccp_getsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int __user *optlen);
+int dccp_setsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, unsigned int optlen);
#ifdef CONFIG_COMPAT
-extern int compat_dccp_getsockopt(struct sock *sk,
- int level, int optname,
- char __user *optval, int __user *optlen);
-extern int compat_dccp_setsockopt(struct sock *sk,
- int level, int optname,
- char __user *optval, unsigned int optlen);
+int compat_dccp_getsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int __user *optlen);
+int compat_dccp_setsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, unsigned int optlen);
#endif
-extern int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg);
-extern int dccp_sendmsg(struct kiocb *iocb, struct sock *sk,
- struct msghdr *msg, size_t size);
-extern int dccp_recvmsg(struct kiocb *iocb, struct sock *sk,
- struct msghdr *msg, size_t len, int nonblock,
- int flags, int *addr_len);
-extern void dccp_shutdown(struct sock *sk, int how);
-extern int inet_dccp_listen(struct socket *sock, int backlog);
-extern unsigned int dccp_poll(struct file *file, struct socket *sock,
- poll_table *wait);
-extern int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr,
- int addr_len);
-
-extern struct sk_buff *dccp_ctl_make_reset(struct sock *sk,
- struct sk_buff *skb);
-extern int dccp_send_reset(struct sock *sk, enum dccp_reset_codes code);
-extern void dccp_send_close(struct sock *sk, const int active);
-extern int dccp_invalid_packet(struct sk_buff *skb);
-extern u32 dccp_sample_rtt(struct sock *sk, long delta);
+int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg);
+int dccp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+ size_t size);
+int dccp_recvmsg(struct kiocb *iocb, struct sock *sk,
+ struct msghdr *msg, size_t len, int nonblock, int flags,
+ int *addr_len);
+void dccp_shutdown(struct sock *sk, int how);
+int inet_dccp_listen(struct socket *sock, int backlog);
+unsigned int dccp_poll(struct file *file, struct socket *sock,
+ poll_table *wait);
+int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
+
+struct sk_buff *dccp_ctl_make_reset(struct sock *sk, struct sk_buff *skb);
+int dccp_send_reset(struct sock *sk, enum dccp_reset_codes code);
+void dccp_send_close(struct sock *sk, const int active);
+int dccp_invalid_packet(struct sk_buff *skb);
+u32 dccp_sample_rtt(struct sock *sk, long delta);
static inline int dccp_bad_service_code(const struct sock *sk,
const __be32 service)
@@ -475,25 +469,25 @@ static inline int dccp_ack_pending(const struct sock *sk)
return dccp_ackvec_pending(sk) || inet_csk_ack_scheduled(sk);
}
-extern int dccp_feat_signal_nn_change(struct sock *sk, u8 feat, u64 nn_val);
-extern int dccp_feat_finalise_settings(struct dccp_sock *dp);
-extern int dccp_feat_server_ccid_dependencies(struct dccp_request_sock *dreq);
-extern int dccp_feat_insert_opts(struct dccp_sock*, struct dccp_request_sock*,
- struct sk_buff *skb);
-extern int dccp_feat_activate_values(struct sock *sk, struct list_head *fn);
-extern void dccp_feat_list_purge(struct list_head *fn_list);
-
-extern int dccp_insert_options(struct sock *sk, struct sk_buff *skb);
-extern int dccp_insert_options_rsk(struct dccp_request_sock*, struct sk_buff*);
-extern int dccp_insert_option_elapsed_time(struct sk_buff *skb, u32 elapsed);
-extern u32 dccp_timestamp(void);
-extern void dccp_timestamping_init(void);
-extern int dccp_insert_option(struct sk_buff *skb, unsigned char option,
- const void *value, unsigned char len);
+int dccp_feat_signal_nn_change(struct sock *sk, u8 feat, u64 nn_val);
+int dccp_feat_finalise_settings(struct dccp_sock *dp);
+int dccp_feat_server_ccid_dependencies(struct dccp_request_sock *dreq);
+int dccp_feat_insert_opts(struct dccp_sock*, struct dccp_request_sock*,
+ struct sk_buff *skb);
+int dccp_feat_activate_values(struct sock *sk, struct list_head *fn);
+void dccp_feat_list_purge(struct list_head *fn_list);
+
+int dccp_insert_options(struct sock *sk, struct sk_buff *skb);
+int dccp_insert_options_rsk(struct dccp_request_sock *, struct sk_buff *);
+int dccp_insert_option_elapsed_time(struct sk_buff *skb, u32 elapsed);
+u32 dccp_timestamp(void);
+void dccp_timestamping_init(void);
+int dccp_insert_option(struct sk_buff *skb, unsigned char option,
+ const void *value, unsigned char len);
#ifdef CONFIG_SYSCTL
-extern int dccp_sysctl_init(void);
-extern void dccp_sysctl_exit(void);
+int dccp_sysctl_init(void);
+void dccp_sysctl_exit(void);
#else
static inline int dccp_sysctl_init(void)
{
diff --git a/net/dccp/feat.h b/net/dccp/feat.h
index 90b957d34d26..0e75cebb2187 100644
--- a/net/dccp/feat.h
+++ b/net/dccp/feat.h
@@ -107,13 +107,13 @@ extern unsigned long sysctl_dccp_sequence_window;
extern int sysctl_dccp_rx_ccid;
extern int sysctl_dccp_tx_ccid;
-extern int dccp_feat_init(struct sock *sk);
-extern void dccp_feat_initialise_sysctls(void);
-extern int dccp_feat_register_sp(struct sock *sk, u8 feat, u8 is_local,
- u8 const *list, u8 len);
-extern int dccp_feat_parse_options(struct sock *, struct dccp_request_sock *,
- u8 mand, u8 opt, u8 feat, u8 *val, u8 len);
-extern int dccp_feat_clone_list(struct list_head const *, struct list_head *);
+int dccp_feat_init(struct sock *sk);
+void dccp_feat_initialise_sysctls(void);
+int dccp_feat_register_sp(struct sock *sk, u8 feat, u8 is_local,
+ u8 const *list, u8 len);
+int dccp_feat_parse_options(struct sock *, struct dccp_request_sock *,
+ u8 mand, u8 opt, u8 feat, u8 *val, u8 len);
+int dccp_feat_clone_list(struct list_head const *, struct list_head *);
/*
* Encoding variable-length options and their maximum length.
@@ -127,11 +127,11 @@ extern int dccp_feat_clone_list(struct list_head const *, struct list_head *);
*/
#define DCCP_OPTVAL_MAXLEN 6
-extern void dccp_encode_value_var(const u64 value, u8 *to, const u8 len);
-extern u64 dccp_decode_value_var(const u8 *bf, const u8 len);
-extern u64 dccp_feat_nn_get(struct sock *sk, u8 feat);
+void dccp_encode_value_var(const u64 value, u8 *to, const u8 len);
+u64 dccp_decode_value_var(const u8 *bf, const u8 len);
+u64 dccp_feat_nn_get(struct sock *sk, u8 feat);
-extern int dccp_insert_option_mandatory(struct sk_buff *skb);
-extern int dccp_insert_fn_opt(struct sk_buff *skb, u8 type, u8 feat,
- u8 *val, u8 len, bool repeat_first);
+int dccp_insert_option_mandatory(struct sk_buff *skb);
+int dccp_insert_fn_opt(struct sk_buff *skb, u8 type, u8 feat, u8 *val, u8 len,
+ bool repeat_first);
#endif /* _DCCP_FEAT_H */
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index ebc54fef85a5..d9f65fc66db5 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -174,6 +174,7 @@ static inline void dccp_do_pmtu_discovery(struct sock *sk,
mtu = dst_mtu(dst);
if (inet->pmtudisc != IP_PMTUDISC_DONT &&
+ ip_sk_accept_pmtu(sk) &&
inet_csk(sk)->icsk_pmtu_cookie > mtu) {
dccp_sync_mss(sk, mtu);
@@ -409,9 +410,9 @@ struct sock *dccp_v4_request_recv_sock(struct sock *sk, struct sk_buff *skb,
newinet = inet_sk(newsk);
ireq = inet_rsk(req);
- newinet->inet_daddr = ireq->rmt_addr;
- newinet->inet_rcv_saddr = ireq->loc_addr;
- newinet->inet_saddr = ireq->loc_addr;
+ newinet->inet_daddr = ireq->ir_rmt_addr;
+ newinet->inet_rcv_saddr = ireq->ir_loc_addr;
+ newinet->inet_saddr = ireq->ir_loc_addr;
newinet->inet_opt = ireq->opt;
ireq->opt = NULL;
newinet->mc_index = inet_iif(skb);
@@ -516,10 +517,10 @@ static int dccp_v4_send_response(struct sock *sk, struct request_sock *req)
const struct inet_request_sock *ireq = inet_rsk(req);
struct dccp_hdr *dh = dccp_hdr(skb);
- dh->dccph_checksum = dccp_v4_csum_finish(skb, ireq->loc_addr,
- ireq->rmt_addr);
- err = ip_build_and_send_pkt(skb, sk, ireq->loc_addr,
- ireq->rmt_addr,
+ dh->dccph_checksum = dccp_v4_csum_finish(skb, ireq->ir_loc_addr,
+ ireq->ir_rmt_addr);
+ err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
+ ireq->ir_rmt_addr,
ireq->opt);
err = net_xmit_eval(err);
}
@@ -641,8 +642,8 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
goto drop_and_free;
ireq = inet_rsk(req);
- ireq->loc_addr = ip_hdr(skb)->daddr;
- ireq->rmt_addr = ip_hdr(skb)->saddr;
+ ireq->ir_loc_addr = ip_hdr(skb)->daddr;
+ ireq->ir_rmt_addr = ip_hdr(skb)->saddr;
/*
* Step 3: Process LISTEN state
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 6cf9f7782ad4..4ac71ff7c2e4 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -67,7 +67,7 @@ static inline void dccp_v6_send_check(struct sock *sk, struct sk_buff *skb)
struct dccp_hdr *dh = dccp_hdr(skb);
dccp_csum_outgoing(skb);
- dh->dccph_checksum = dccp_v6_csum_finish(skb, &np->saddr, &np->daddr);
+ dh->dccph_checksum = dccp_v6_csum_finish(skb, &np->saddr, &sk->sk_v6_daddr);
}
static inline __u64 dccp_v6_init_sequence(struct sk_buff *skb)
@@ -216,7 +216,7 @@ out:
static int dccp_v6_send_response(struct sock *sk, struct request_sock *req)
{
- struct inet6_request_sock *ireq6 = inet6_rsk(req);
+ struct inet_request_sock *ireq = inet_rsk(req);
struct ipv6_pinfo *np = inet6_sk(sk);
struct sk_buff *skb;
struct in6_addr *final_p, final;
@@ -226,12 +226,12 @@ static int dccp_v6_send_response(struct sock *sk, struct request_sock *req)
memset(&fl6, 0, sizeof(fl6));
fl6.flowi6_proto = IPPROTO_DCCP;
- fl6.daddr = ireq6->rmt_addr;
- fl6.saddr = ireq6->loc_addr;
+ fl6.daddr = ireq->ir_v6_rmt_addr;
+ fl6.saddr = ireq->ir_v6_loc_addr;
fl6.flowlabel = 0;
- fl6.flowi6_oif = ireq6->iif;
- fl6.fl6_dport = inet_rsk(req)->rmt_port;
- fl6.fl6_sport = inet_rsk(req)->loc_port;
+ fl6.flowi6_oif = ireq->ir_iif;
+ fl6.fl6_dport = ireq->ir_rmt_port;
+ fl6.fl6_sport = htons(ireq->ir_num);
security_req_classify_flow(req, flowi6_to_flowi(&fl6));
@@ -249,9 +249,9 @@ static int dccp_v6_send_response(struct sock *sk, struct request_sock *req)
struct dccp_hdr *dh = dccp_hdr(skb);
dh->dccph_checksum = dccp_v6_csum_finish(skb,
- &ireq6->loc_addr,
- &ireq6->rmt_addr);
- fl6.daddr = ireq6->rmt_addr;
+ &ireq->ir_v6_loc_addr,
+ &ireq->ir_v6_rmt_addr);
+ fl6.daddr = ireq->ir_v6_rmt_addr;
err = ip6_xmit(sk, skb, &fl6, np->opt, np->tclass);
err = net_xmit_eval(err);
}
@@ -264,8 +264,7 @@ done:
static void dccp_v6_reqsk_destructor(struct request_sock *req)
{
dccp_feat_list_purge(&dccp_rsk(req)->dreq_featneg);
- if (inet6_rsk(req)->pktopts != NULL)
- kfree_skb(inet6_rsk(req)->pktopts);
+ kfree_skb(inet_rsk(req)->pktopts);
}
static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
@@ -359,7 +358,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
{
struct request_sock *req;
struct dccp_request_sock *dreq;
- struct inet6_request_sock *ireq6;
+ struct inet_request_sock *ireq;
struct ipv6_pinfo *np = inet6_sk(sk);
const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
@@ -398,22 +397,22 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
if (security_inet_conn_request(sk, skb, req))
goto drop_and_free;
- ireq6 = inet6_rsk(req);
- ireq6->rmt_addr = ipv6_hdr(skb)->saddr;
- ireq6->loc_addr = ipv6_hdr(skb)->daddr;
+ ireq = inet_rsk(req);
+ ireq->ir_v6_rmt_addr = ipv6_hdr(skb)->saddr;
+ ireq->ir_v6_loc_addr = ipv6_hdr(skb)->daddr;
if (ipv6_opt_accepted(sk, skb) ||
np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo ||
np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim) {
atomic_inc(&skb->users);
- ireq6->pktopts = skb;
+ ireq->pktopts = skb;
}
- ireq6->iif = sk->sk_bound_dev_if;
+ ireq->ir_iif = sk->sk_bound_dev_if;
/* So that link locals have meaning */
if (!sk->sk_bound_dev_if &&
- ipv6_addr_type(&ireq6->rmt_addr) & IPV6_ADDR_LINKLOCAL)
- ireq6->iif = inet6_iif(skb);
+ ipv6_addr_type(&ireq->ir_v6_rmt_addr) & IPV6_ADDR_LINKLOCAL)
+ ireq->ir_iif = inet6_iif(skb);
/*
* Step 3: Process LISTEN state
@@ -446,7 +445,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
struct request_sock *req,
struct dst_entry *dst)
{
- struct inet6_request_sock *ireq6 = inet6_rsk(req);
+ struct inet_request_sock *ireq = inet_rsk(req);
struct ipv6_pinfo *newnp, *np = inet6_sk(sk);
struct inet_sock *newinet;
struct dccp6_sock *newdp6;
@@ -467,11 +466,11 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
memcpy(newnp, np, sizeof(struct ipv6_pinfo));
- ipv6_addr_set_v4mapped(newinet->inet_daddr, &newnp->daddr);
+ ipv6_addr_set_v4mapped(newinet->inet_daddr, &newsk->sk_v6_daddr);
ipv6_addr_set_v4mapped(newinet->inet_saddr, &newnp->saddr);
- newnp->rcv_saddr = newnp->saddr;
+ newsk->sk_v6_rcv_saddr = newnp->saddr;
inet_csk(newsk)->icsk_af_ops = &dccp_ipv6_mapped;
newsk->sk_backlog_rcv = dccp_v4_do_rcv;
@@ -505,12 +504,12 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
memset(&fl6, 0, sizeof(fl6));
fl6.flowi6_proto = IPPROTO_DCCP;
- fl6.daddr = ireq6->rmt_addr;
+ fl6.daddr = ireq->ir_v6_rmt_addr;
final_p = fl6_update_dst(&fl6, np->opt, &final);
- fl6.saddr = ireq6->loc_addr;
+ fl6.saddr = ireq->ir_v6_loc_addr;
fl6.flowi6_oif = sk->sk_bound_dev_if;
- fl6.fl6_dport = inet_rsk(req)->rmt_port;
- fl6.fl6_sport = inet_rsk(req)->loc_port;
+ fl6.fl6_dport = ireq->ir_rmt_port;
+ fl6.fl6_sport = htons(ireq->ir_num);
security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false);
@@ -538,10 +537,10 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
memcpy(newnp, np, sizeof(struct ipv6_pinfo));
- newnp->daddr = ireq6->rmt_addr;
- newnp->saddr = ireq6->loc_addr;
- newnp->rcv_saddr = ireq6->loc_addr;
- newsk->sk_bound_dev_if = ireq6->iif;
+ newsk->sk_v6_daddr = ireq->ir_v6_rmt_addr;
+ newnp->saddr = ireq->ir_v6_loc_addr;
+ newsk->sk_v6_rcv_saddr = ireq->ir_v6_loc_addr;
+ newsk->sk_bound_dev_if = ireq->ir_iif;
/* Now IPv6 options...
@@ -554,10 +553,10 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
/* Clone pktoptions received with SYN */
newnp->pktoptions = NULL;
- if (ireq6->pktopts != NULL) {
- newnp->pktoptions = skb_clone(ireq6->pktopts, GFP_ATOMIC);
- consume_skb(ireq6->pktopts);
- ireq6->pktopts = NULL;
+ if (ireq->pktopts != NULL) {
+ newnp->pktoptions = skb_clone(ireq->pktopts, GFP_ATOMIC);
+ consume_skb(ireq->pktopts);
+ ireq->pktopts = NULL;
if (newnp->pktoptions)
skb_set_owner_r(newnp->pktoptions, newsk);
}
@@ -885,7 +884,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
return -EINVAL;
}
- np->daddr = usin->sin6_addr;
+ sk->sk_v6_daddr = usin->sin6_addr;
np->flow_label = fl6.flowlabel;
/*
@@ -915,16 +914,16 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
goto failure;
}
ipv6_addr_set_v4mapped(inet->inet_saddr, &np->saddr);
- ipv6_addr_set_v4mapped(inet->inet_rcv_saddr, &np->rcv_saddr);
+ ipv6_addr_set_v4mapped(inet->inet_rcv_saddr, &sk->sk_v6_rcv_saddr);
return err;
}
- if (!ipv6_addr_any(&np->rcv_saddr))
- saddr = &np->rcv_saddr;
+ if (!ipv6_addr_any(&sk->sk_v6_rcv_saddr))
+ saddr = &sk->sk_v6_rcv_saddr;
fl6.flowi6_proto = IPPROTO_DCCP;
- fl6.daddr = np->daddr;
+ fl6.daddr = sk->sk_v6_daddr;
fl6.saddr = saddr ? *saddr : np->saddr;
fl6.flowi6_oif = sk->sk_bound_dev_if;
fl6.fl6_dport = usin->sin6_port;
@@ -941,7 +940,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
if (saddr == NULL) {
saddr = &fl6.saddr;
- np->rcv_saddr = *saddr;
+ sk->sk_v6_rcv_saddr = *saddr;
}
/* set the source address */
@@ -963,7 +962,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
goto late_failure;
dp->dccps_iss = secure_dccpv6_sequence_number(np->saddr.s6_addr32,
- np->daddr.s6_addr32,
+ sk->sk_v6_daddr.s6_addr32,
inet->inet_sport,
inet->inet_dport);
err = dccp_connect(sk);
diff --git a/net/dccp/ipv6.h b/net/dccp/ipv6.h
index 6eef81fdbe56..af259e15e7f0 100644
--- a/net/dccp/ipv6.h
+++ b/net/dccp/ipv6.h
@@ -25,12 +25,10 @@ struct dccp6_sock {
struct dccp6_request_sock {
struct dccp_request_sock dccp;
- struct inet6_request_sock inet6;
};
struct dccp6_timewait_sock {
struct inet_timewait_sock inet;
- struct inet6_timewait_sock tw6;
};
#endif /* _DCCP_IPV6_H */
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 662071b249cc..9e2f78bc1553 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -56,12 +56,9 @@ void dccp_time_wait(struct sock *sk, int state, int timeo)
#if IS_ENABLED(CONFIG_IPV6)
if (tw->tw_family == PF_INET6) {
const struct ipv6_pinfo *np = inet6_sk(sk);
- struct inet6_timewait_sock *tw6;
- tw->tw_ipv6_offset = inet6_tw_offset(sk->sk_prot);
- tw6 = inet6_twsk((struct sock *)tw);
- tw6->tw_v6_daddr = np->daddr;
- tw6->tw_v6_rcv_saddr = np->rcv_saddr;
+ tw->tw_v6_daddr = sk->sk_v6_daddr;
+ tw->tw_v6_rcv_saddr = sk->sk_v6_rcv_saddr;
tw->tw_ipv6only = np->ipv6only;
}
#endif
@@ -269,10 +266,10 @@ int dccp_reqsk_init(struct request_sock *req,
{
struct dccp_request_sock *dreq = dccp_rsk(req);
- inet_rsk(req)->rmt_port = dccp_hdr(skb)->dccph_sport;
- inet_rsk(req)->loc_port = dccp_hdr(skb)->dccph_dport;
- inet_rsk(req)->acked = 0;
- dreq->dreq_timestamp_echo = 0;
+ inet_rsk(req)->ir_rmt_port = dccp_hdr(skb)->dccph_sport;
+ inet_rsk(req)->ir_num = ntohs(dccp_hdr(skb)->dccph_dport);
+ inet_rsk(req)->acked = 0;
+ dreq->dreq_timestamp_echo = 0;
/* inherit feature negotiation options from listening socket */
return dccp_feat_clone_list(&dp->dccps_featneg, &dreq->dreq_featneg);
diff --git a/net/dccp/output.c b/net/dccp/output.c
index d17fc90a74b6..8876078859da 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -424,8 +424,8 @@ struct sk_buff *dccp_make_response(struct sock *sk, struct dst_entry *dst,
/* Build and checksum header */
dh = dccp_zeroed_hdr(skb, dccp_header_size);
- dh->dccph_sport = inet_rsk(req)->loc_port;
- dh->dccph_dport = inet_rsk(req)->rmt_port;
+ dh->dccph_sport = htons(inet_rsk(req)->ir_num);
+ dh->dccph_dport = inet_rsk(req)->ir_rmt_port;
dh->dccph_doff = (dccp_header_size +
DCCP_SKB_CB(skb)->dccpd_opt_len) / 4;
dh->dccph_type = DCCP_PKT_RESPONSE;
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index ba64750f0387..eb892b4f4814 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -1158,10 +1158,8 @@ static int __init dccp_init(void)
goto out_free_bind_bucket_cachep;
}
- for (i = 0; i <= dccp_hashinfo.ehash_mask; i++) {
+ for (i = 0; i <= dccp_hashinfo.ehash_mask; i++)
INIT_HLIST_NULLS_HEAD(&dccp_hashinfo.ehash[i].chain, i);
- INIT_HLIST_NULLS_HEAD(&dccp_hashinfo.ehash[i].twchain, i);
- }
if (inet_ehash_locks_alloc(&dccp_hashinfo))
goto out_free_dccp_ehash;