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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  tcp: Revert 'process defer accept as established' changes.
  ipv6: Fix duplicate initialization of rawv6_prot.destroy
  bnx2x: Updating the Maintainer
  net: Eliminate flush_scheduled_work() calls while RTNL is held.
  drivers/net/r6040.c: correct bad use of round_jiffies()
  fec_mpc52xx: MPC52xx_MESSAGES_DEFAULT: 2nd NETIF_MSG_IFDOWN => IFUP
  ipg: fix receivemode IPG_RM_RECEIVEMULTICAST{,HASH} in ipg_nic_set_multicast_list()
  netfilter: nf_conntrack: fix ctnetlink related crash in nf_nat_setup_info()
  netfilter: Make nflog quiet when no one listen in userspace.
  ipv6: Fail with appropriate error code when setting not-applicable sockopt.
  ipv6: Check IPV6_MULTICAST_LOOP option value.
  ipv6: Check the hop limit setting in ancillary data.
  ipv6 route: Fix route lifetime in netlink message.
  ipv6 mcast: Check address family of gf_group in getsockopt(MS_FILTER).
  dccp: Bug in initial acknowledgment number assignment
  dccp ccid-3: X truncated due to type conversion
  dccp ccid-3: TFRC reverse-lookup Bug-Fix
  dccp ccid-2: Bug-Fix - Ack Vectors need to be ignored on request sockets
  dccp: Fix sparse warnings
  dccp ccid-3: Bug-Fix - Zero RTT is possible
This commit is contained in:
Linus Torvalds 2008-06-13 07:34:47 -07:00
parent d36e311070 ec0a196626
commit 51558576ea
40 changed files with 130 additions and 228 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
MAINTAINERS
View File

@ -995,8 +995,8 @@ L: netdev@vger.kernel.org
S: Supported
BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
P: Eliezer Tamir
M: eliezert@broadcom.com
P: Eilon Greenstein
M: eilong@broadcom.com
L: netdev@vger.kernel.org
S: Supported

9
drivers/net/bnx2.c
View File

@ -5724,14 +5724,12 @@ bnx2_reset_task(struct work_struct *work)
if (!netif_running(bp->dev))
return;
bp->in_reset_task = 1;
bnx2_netif_stop(bp);
bnx2_init_nic(bp);
atomic_set(&bp->intr_sem, 1);
bnx2_netif_start(bp);
bp->in_reset_task = 0;
}
static void
@ -5907,12 +5905,7 @@ bnx2_close(struct net_device *dev)
struct bnx2 *bp = netdev_priv(dev);
u32 reset_code;
/* Calling flush_scheduled_work() may deadlock because
* linkwatch_event() may be on the workqueue and it will try to get
* the rtnl_lock which we are holding.
*/
while (bp->in_reset_task)
msleep(1);
cancel_work_sync(&bp->reset_task);
bnx2_disable_int_sync(bp);
bnx2_napi_disable(bp);

1
drivers/net/bnx2.h
View File

@ -6656,7 +6656,6 @@ struct bnx2 {
int current_interval;
struct timer_list timer;
struct work_struct reset_task;
int in_reset_task;
/* Used to synchronize phy accesses. */
spinlock_t phy_lock;

5
drivers/net/bnx2x.c
View File

@ -6,7 +6,8 @@
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Eliezer Tamir <eliezert@broadcom.com>
* Maintained by: Eilon Greenstein <eilong@broadcom.com>
* Written by: Eliezer Tamir
* Based on code from Michael Chan's bnx2 driver
* UDP CSUM errata workaround by Arik Gendelman
* Slowpath rework by Vladislav Zolotarov
@ -74,7 +75,7 @@ static char version[] __devinitdata =
"Broadcom NetXtreme II 5771X 10Gigabit Ethernet Driver "
DRV_MODULE_NAME " " DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("Eliezer Tamir <eliezert@broadcom.com>");
MODULE_AUTHOR("Eliezer Tamir");
MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);

3
drivers/net/bnx2x.h
View File

@ -6,7 +6,8 @@
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Eliezer Tamir <eliezert@broadcom.com>
* Maintained by: Eilon Greenstein <eilong@broadcom.com>
* Written by: Eliezer Tamir
* Based on code from Michael Chan's bnx2 driver
*/

3
drivers/net/bnx2x_init.h
View File

@ -6,7 +6,8 @@
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Eliezer Tamir <eliezert@broadcom.com>
* Maintained by: Eilon Greenstein <eilong@broadcom.com>
* Written by: Eliezer Tamir
*/
#ifndef BNX2X_INIT_H

3
drivers/net/ehea/ehea_main.c
View File

@ -2605,7 +2605,8 @@ static int ehea_stop(struct net_device *dev)
if (netif_msg_ifdown(port))
ehea_info("disabling port %s", dev->name);
flush_scheduled_work();
cancel_work_sync(&port->reset_task);
mutex_lock(&port->port_lock);
netif_stop_queue(dev);
port_napi_disable(port);

2
drivers/net/fec_mpc52xx.c
View File

@ -78,7 +78,7 @@ module_param_array_named(mac, mpc52xx_fec_mac_addr, byte, NULL, 0);
MODULE_PARM_DESC(mac, "six hex digits, ie. 0x1,0x2,0xc0,0x01,0xba,0xbe");
#define MPC52xx_MESSAGES_DEFAULT ( NETIF_MSG_DRV | NETIF_MSG_PROBE | \
NETIF_MSG_LINK | NETIF_MSG_IFDOWN | NETIF_MSG_IFDOWN )
NETIF_MSG_LINK | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP)
static int debug = -1; /* the above default */
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "debugging messages level");

2
drivers/net/hamradio/baycom_epp.c
View File

@ -959,7 +959,7 @@ static int epp_close(struct net_device *dev)
unsigned char tmp[1];
bc->work_running = 0;
flush_scheduled_work();
cancel_delayed_work_sync(&bc->run_work);
bc->stat = EPP_DCDBIT;
tmp[0] = 0;
pp->ops->epp_write_addr(pp, tmp, 1, 0);

4
drivers/net/ipg.c
View File

@ -577,12 +577,12 @@ static void ipg_nic_set_multicast_list(struct net_device *dev)
/* NIC to be configured in promiscuous mode. */
receivemode = IPG_RM_RECEIVEALLFRAMES;
} else if ((dev->flags & IFF_ALLMULTI) ||
(dev->flags & IFF_MULTICAST &
((dev->flags & IFF_MULTICAST) &&
(dev->mc_count > IPG_MULTICAST_HASHTABLE_SIZE))) {
/* NIC to be configured to receive all multicast
* frames. */
receivemode |= IPG_RM_RECEIVEMULTICAST;
} else if (dev->flags & IFF_MULTICAST & (dev->mc_count > 0)) {
} else if ((dev->flags & IFF_MULTICAST) && (dev->mc_count > 0)) {
/* NIC to be configured to receive selected
* multicast addresses. */
receivemode |= IPG_RM_RECEIVEMULTICASTHASH;

2
drivers/net/r6040.c
View File

@ -733,7 +733,7 @@ static void r6040_timer(unsigned long data)
}
/* Timer active again */
mod_timer(&lp->timer, jiffies + round_jiffies(HZ));
mod_timer(&lp->timer, round_jiffies(jiffies + HZ));
}
/* Read/set MAC address routines */

24
drivers/net/smc911x.c
View File

@ -136,7 +136,6 @@ struct smc911x_local {
/* work queue */
struct work_struct phy_configure;
int work_pending;
int tx_throttle;
spinlock_t lock;
@ -960,11 +959,11 @@ static void smc911x_phy_configure(struct work_struct *work)
* We should not be called if phy_type is zero.
*/
if (lp->phy_type == 0)
goto smc911x_phy_configure_exit_nolock;
return;
if (smc911x_phy_reset(dev, phyaddr)) {
printk("%s: PHY reset timed out\n", dev->name);
goto smc911x_phy_configure_exit_nolock;
return;
}
spin_lock_irqsave(&lp->lock, flags);
@ -1033,8 +1032,6 @@ static void smc911x_phy_configure(struct work_struct *work)
smc911x_phy_configure_exit:
spin_unlock_irqrestore(&lp->lock, flags);
smc911x_phy_configure_exit_nolock:
lp->work_pending = 0;
}
/*
@ -1356,11 +1353,8 @@ static void smc911x_timeout(struct net_device *dev)
* smc911x_phy_configure() calls msleep() which calls schedule_timeout()
* which calls schedule(). Hence we use a work queue.
*/
if (lp->phy_type != 0) {
if (schedule_work(&lp->phy_configure)) {
lp->work_pending = 1;
}
}
if (lp->phy_type != 0)
schedule_work(&lp->phy_configure);
/* We can accept TX packets again */
dev->trans_start = jiffies;
@ -1531,16 +1525,8 @@ static int smc911x_close(struct net_device *dev)
if (lp->phy_type != 0) {
/* We need to ensure that no calls to
* smc911x_phy_configure are pending.
* flush_scheduled_work() cannot be called because we
* are running with the netlink semaphore held (from
* devinet_ioctl()) and the pending work queue
* contains linkwatch_event() (scheduled by
* netif_carrier_off() above). linkwatch_event() also
* wants the netlink semaphore.
*/
while (lp->work_pending)
schedule();
cancel_work_sync(&lp->phy_configure);
smc911x_phy_powerdown(dev, lp->mii.phy_id);
}

17
drivers/net/smc91x.c
View File

@ -1016,15 +1016,8 @@ static void smc_phy_powerdown(struct net_device *dev)
/* We need to ensure that no calls to smc_phy_configure are
pending.
flush_scheduled_work() cannot be called because we are
running with the netlink semaphore held (from
devinet_ioctl()) and the pending work queue contains
linkwatch_event() (scheduled by netif_carrier_off()
above). linkwatch_event() also wants the netlink semaphore.
*/
while(lp->work_pending)
yield();
cancel_work_sync(&lp->phy_configure);
bmcr = smc_phy_read(dev, phy, MII_BMCR);
smc_phy_write(dev, phy, MII_BMCR, bmcr | BMCR_PDOWN);
@ -1161,7 +1154,6 @@ static void smc_phy_configure(struct work_struct *work)
smc_phy_configure_exit:
SMC_SELECT_BANK(lp, 2);
spin_unlock_irq(&lp->lock);
lp->work_pending = 0;
}
/*
@ -1389,11 +1381,8 @@ static void smc_timeout(struct net_device *dev)
* smc_phy_configure() calls msleep() which calls schedule_timeout()
* which calls schedule(). Hence we use a work queue.
*/
if (lp->phy_type != 0) {
if (schedule_work(&lp->phy_configure)) {
lp->work_pending = 1;
}
}
if (lp->phy_type != 0)
schedule_work(&lp->phy_configure);
/* We can accept TX packets again */
dev->trans_start = jiffies;

2
drivers/net/tulip/tulip_core.c
View File

@ -731,7 +731,7 @@ static void tulip_down (struct net_device *dev)
void __iomem *ioaddr = tp->base_addr;
unsigned long flags;
flush_scheduled_work();
cancel_work_sync(&tp->media_work);
#ifdef CONFIG_TULIP_NAPI
napi_disable(&tp->napi);

2
drivers/net/usb/kaweth.c
View File

@ -706,7 +706,7 @@ static void kaweth_kill_urbs(struct kaweth_device *kaweth)
usb_kill_urb(kaweth->rx_urb);
usb_kill_urb(kaweth->tx_urb);
flush_scheduled_work();
cancel_delayed_work_sync(&kaweth->lowmem_work);
/* a scheduled work may have resubmitted,
we hit them again */

8
drivers/net/wireless/hostap/hostap_main.c
View File

@ -682,7 +682,13 @@ static int prism2_close(struct net_device *dev)
netif_device_detach(dev);
}
flush_scheduled_work();
cancel_work_sync(&local->reset_queue);
cancel_work_sync(&local->set_multicast_list_queue);
cancel_work_sync(&local->set_tim_queue);
#ifndef PRISM2_NO_STATION_MODES
cancel_work_sync(&local->info_queue);
#endif
cancel_work_sync(&local->comms_qual_update);
module_put(local->hw_module);

7
include/linux/tcp.h
View File

@ -239,11 +239,6 @@ static inline struct tcp_request_sock *tcp_rsk(const struct request_sock *req)
return (struct tcp_request_sock *)req;
}
struct tcp_deferred_accept_info {
struct sock *listen_sk;
struct request_sock *request;
};
struct tcp_sock {
/* inet_connection_sock has to be the first member of tcp_sock */
struct inet_connection_sock inet_conn;
@ -379,8 +374,6 @@ struct tcp_sock {
unsigned int keepalive_intvl; /* time interval between keep alive probes */
int linger2;
struct tcp_deferred_accept_info defer_tcp_accept;
unsigned long last_synq_overflow;
u32 tso_deferred;

4
include/net/request_sock.h
View File

@ -115,8 +115,8 @@ struct request_sock_queue {
struct request_sock *rskq_accept_head;
struct request_sock *rskq_accept_tail;
rwlock_t syn_wait_lock;
u16 rskq_defer_accept;
/* 2 bytes hole, try to pack */
u8 rskq_defer_accept;
/* 3 bytes hole, try to pack */
struct listen_sock *listen_opt;
};

1
include/net/tcp.h
View File

@ -139,7 +139,6 @@ extern void tcp_time_wait(struct sock *sk, int state, int timeo);
#define MAX_TCP_KEEPINTVL 32767
#define MAX_TCP_KEEPCNT 127
#define MAX_TCP_SYNCNT 127
#define MAX_TCP_ACCEPT_DEFERRED 65535
#define TCP_SYNQ_INTERVAL (HZ/5) /* Period of SYNACK timer */

29
net/dccp/ackvec.c
View File

@ -290,12 +290,12 @@ int dccp_ackvec_add(struct dccp_ackvec *av, const struct sock *sk,
while (1) {
const u8 len = dccp_ackvec_len(av, index);
const u8 state = dccp_ackvec_state(av, index);
const u8 av_state = dccp_ackvec_state(av, index);
/*
* valid packets not yet in av_buf have a reserved
* entry, with a len equal to 0.
*/
if (state == DCCP_ACKVEC_STATE_NOT_RECEIVED &&
if (av_state == DCCP_ACKVEC_STATE_NOT_RECEIVED &&
len == 0 && delta == 0) { /* Found our
reserved seat! */
dccp_pr_debug("Found %llu reserved seat!\n",
@ -325,31 +325,6 @@ out_duplicate:
return -EILSEQ;
}
#ifdef CONFIG_IP_DCCP_DEBUG
void dccp_ackvector_print(const u64 ackno, const unsigned char *vector, int len)
{
dccp_pr_debug_cat("ACK vector len=%d, ackno=%llu |", len,
(unsigned long long)ackno);
while (len--) {
const u8 state = (*vector & DCCP_ACKVEC_STATE_MASK) >> 6;
const u8 rl = *vector & DCCP_ACKVEC_LEN_MASK;
dccp_pr_debug_cat("%d,%d|", state, rl);
++vector;
}
dccp_pr_debug_cat("\n");
}
void dccp_ackvec_print(const struct dccp_ackvec *av)
{
dccp_ackvector_print(av->av_buf_ackno,
av->av_buf + av->av_buf_head,
av->av_vec_len);
}
#endif
static void dccp_ackvec_throw_record(struct dccp_ackvec *av,
struct dccp_ackvec_record *avr)
{

14
net/dccp/ccids/ccid3.c
View File

@ -159,8 +159,8 @@ static void ccid3_hc_tx_update_x(struct sock *sk, ktime_t *stamp)
} else if (ktime_us_delta(now, hctx->ccid3hctx_t_ld)
- (s64)hctx->ccid3hctx_rtt >= 0) {
hctx->ccid3hctx_x =
max(min(2 * hctx->ccid3hctx_x, min_rate),
hctx->ccid3hctx_x = min(2 * hctx->ccid3hctx_x, min_rate);
hctx->ccid3hctx_x = max(hctx->ccid3hctx_x,
scaled_div(((__u64)hctx->ccid3hctx_s) << 6,
hctx->ccid3hctx_rtt));
hctx->ccid3hctx_t_ld = now;
@ -329,8 +329,14 @@ static int ccid3_hc_tx_send_packet(struct sock *sk, struct sk_buff *skb)
hctx->ccid3hctx_x = rfc3390_initial_rate(sk);
hctx->ccid3hctx_t_ld = now;
} else {
/* Sender does not have RTT sample: X_pps = 1 pkt/sec */
hctx->ccid3hctx_x = hctx->ccid3hctx_s;
/*
* Sender does not have RTT sample:
* - set fallback RTT (RFC 4340, 3.4) since a RTT value
* is needed in several parts (e.g. window counter);
* - set sending rate X_pps = 1pps as per RFC 3448, 4.2.
*/
hctx->ccid3hctx_rtt = DCCP_FALLBACK_RTT;
hctx->ccid3hctx_x = hctx->ccid3hctx_s;
hctx->ccid3hctx_x <<= 6;
}
ccid3_update_send_interval(hctx);

8
net/dccp/ccids/lib/tfrc.c
View File

@ -14,14 +14,6 @@ module_param(tfrc_debug, bool, 0444);
MODULE_PARM_DESC(tfrc_debug, "Enable debug messages");
#endif
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);
extern int tfrc_li_init(void);
extern void tfrc_li_exit(void);
static int __init tfrc_module_init(void)
{
int rc = tfrc_li_init();

25
net/dccp/ccids/lib/tfrc.h
View File

@ -15,7 +15,7 @@
* (at your option) any later version.
*/
#include <linux/types.h>
#include <asm/div64.h>
#include <linux/math64.h>
#include "../../dccp.h"
/* internal includes that this module exports: */
#include "loss_interval.h"
@ -29,21 +29,19 @@ extern int tfrc_debug;
#endif
/* integer-arithmetic divisions of type (a * 1000000)/b */
static inline u64 scaled_div(u64 a, u32 b)
static inline u64 scaled_div(u64 a, u64 b)
{
BUG_ON(b==0);
a *= 1000000;
do_div(a, b);
return a;
return div64_u64(a * 1000000, b);
}
static inline u32 scaled_div32(u64 a, u32 b)
static inline u32 scaled_div32(u64 a, u64 b)
{
u64 result = scaled_div(a, b);
if (result > UINT_MAX) {
DCCP_CRIT("Overflow: a(%llu)/b(%u) > ~0U",
(unsigned long long)a, b);
DCCP_CRIT("Overflow: %llu/%llu > UINT_MAX",
(unsigned long long)a, (unsigned long long)b);
return UINT_MAX;
}
return result;
@ -58,7 +56,14 @@ 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_calc_x(u16 s, u32 R, u32 p);
extern u32 tfrc_calc_x_reverse_lookup(u32 fvalue);
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);
extern int tfrc_li_init(void);
extern void tfrc_li_exit(void);
#endif /* _TFRC_H_ */

8
net/dccp/ccids/lib/tfrc_equation.c
View File

@ -661,7 +661,7 @@ u32 tfrc_calc_x(u16 s, u32 R, u32 p)
EXPORT_SYMBOL_GPL(tfrc_calc_x);
/*
/**
* tfrc_calc_x_reverse_lookup - try to find p given f(p)
*
* @fvalue: function value to match, scaled by 1000000
@ -676,11 +676,11 @@ u32 tfrc_calc_x_reverse_lookup(u32 fvalue)
/* Error cases. */
if (fvalue < tfrc_calc_x_lookup[0][1]) {
DCCP_WARN("fvalue %d smaller than resolution\n", fvalue);
return tfrc_calc_x_lookup[0][1];
DCCP_WARN("fvalue %u smaller than resolution\n", fvalue);
return TFRC_SMALLEST_P;
}
if (fvalue > tfrc_calc_x_lookup[TFRC_CALC_X_ARRSIZE - 1][0]) {
DCCP_WARN("fvalue %d exceeds bounds!\n", fvalue);
DCCP_WARN("fvalue %u exceeds bounds!\n", fvalue);
return 1000000;
}

8
net/dccp/minisocks.c
View File

@ -165,12 +165,12 @@ out_free:
/* See dccp_v4_conn_request */
newdmsk->dccpms_sequence_window = req->rcv_wnd;
newdp->dccps_gar = newdp->dccps_isr = dreq->dreq_isr;
dccp_update_gsr(newsk, dreq->dreq_isr);
newdp->dccps_iss = dreq->dreq_iss;
newdp->dccps_gar = newdp->dccps_iss = dreq->dreq_iss;
dccp_update_gss(newsk, dreq->dreq_iss);
newdp->dccps_isr = dreq->dreq_isr;
dccp_update_gsr(newsk, dreq->dreq_isr);
/*
* SWL and AWL are initially adjusted so that they are not less than
* the initial Sequence Numbers received and sent, respectively:

4
net/dccp/options.c
View File

@ -107,9 +107,11 @@ int dccp_parse_options(struct sock *sk, struct dccp_request_sock *dreq,
*
* CCID-specific options are ignored during connection setup, as
* negotiation may still be in progress (see RFC 4340, 10.3).
* The same applies to Ack Vectors, as these depend on the CCID.
*
*/
if (dreq != NULL && opt >= 128)
if (dreq != NULL && (opt >= 128 ||
opt == DCCPO_ACK_VECTOR_0 || opt == DCCPO_ACK_VECTOR_1))
goto ignore_option;
switch (opt) {

2
net/dccp/output.c
View File

@ -508,6 +508,7 @@ void dccp_send_ack(struct sock *sk)
EXPORT_SYMBOL_GPL(dccp_send_ack);
#if 0
/* FIXME: Is this still necessary (11.3) - currently nowhere used by DCCP. */
void dccp_send_delayed_ack(struct sock *sk)
{
@ -538,6 +539,7 @@ void dccp_send_delayed_ack(struct sock *sk)
icsk->icsk_ack.timeout = timeout;
sk_reset_timer(sk, &icsk->icsk_delack_timer, timeout);
}
#endif
void dccp_send_sync(struct sock *sk, const u64 ackno,
const enum dccp_pkt_type pkt_type)

2
net/dccp/probe.c
View File

@ -42,7 +42,7 @@ static int bufsize = 64 * 1024;
static const char procname[] = "dccpprobe";
struct {
static struct {
struct kfifo *fifo;
spinlock_t lock;
wait_queue_head_t wait;

11
net/ipv4/inet_connection_sock.c
View File

@ -419,7 +419,8 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
struct inet_connection_sock *icsk = inet_csk(parent);
struct request_sock_queue *queue = &icsk->icsk_accept_queue;
struct listen_sock *lopt = queue->listen_opt;
int thresh = icsk->icsk_syn_retries ? : sysctl_tcp_synack_retries;
int max_retries = icsk->icsk_syn_retries ? : sysctl_tcp_synack_retries;
int thresh = max_retries;
unsigned long now = jiffies;
struct request_sock **reqp, *req;
int i, budget;
@ -455,6 +456,9 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
}
}
if (queue->rskq_defer_accept)
max_retries = queue->rskq_defer_accept;
budget = 2 * (lopt->nr_table_entries / (timeout / interval));
i = lopt->clock_hand;
@ -462,8 +466,9 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
reqp=&lopt->syn_table[i];
while ((req = *reqp) != NULL) {
if (time_after_eq(now, req->expires)) {
if (req->retrans < thresh &&
!req->rsk_ops->rtx_syn_ack(parent, req)) {
if ((req->retrans < (inet_rsk(req)->acked ? max_retries : thresh)) &&
(inet_rsk(req)->acked ||
!req->rsk_ops->rtx_syn_ack(parent, req))) {
unsigned long timeo;
if (req->retrans++ == 0)

18
net/ipv4/tcp.c
View File

@ -2112,12 +2112,15 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
break;
case TCP_DEFER_ACCEPT:
if (val < 0) {
err = -EINVAL;
} else {
if (val > MAX_TCP_ACCEPT_DEFERRED)
val = MAX_TCP_ACCEPT_DEFERRED;
icsk->icsk_accept_queue.rskq_defer_accept = val;
icsk->icsk_accept_queue.rskq_defer_accept = 0;
if (val > 0) {
/* Translate value in seconds to number of
* retransmits */
while (icsk->icsk_accept_queue.rskq_defer_accept < 32 &&
val > ((TCP_TIMEOUT_INIT / HZ) <<
icsk->icsk_accept_queue.rskq_defer_accept))
icsk->icsk_accept_queue.rskq_defer_accept++;
icsk->icsk_accept_queue.rskq_defer_accept++;
}
break;
@ -2299,7 +2302,8 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
val = (val ? : sysctl_tcp_fin_timeout) / HZ;
break;
case TCP_DEFER_ACCEPT:
val = icsk->icsk_accept_queue.rskq_defer_accept;
val = !icsk->icsk_accept_queue.rskq_defer_accept ? 0 :
((TCP_TIMEOUT_INIT / HZ) << (icsk->icsk_accept_queue.rskq_defer_accept - 1));
break;
case TCP_WINDOW_CLAMP:
val = tp->window_clamp;

45
net/ipv4/tcp_input.c
View File

@ -4541,49 +4541,6 @@ static void tcp_urg(struct sock *sk, struct sk_buff *skb, struct tcphdr *th)
}
}
static int tcp_defer_accept_check(struct sock *sk)
{
struct tcp_sock *tp = tcp_sk(sk);
if (tp->defer_tcp_accept.request) {
int queued_data = tp->rcv_nxt - tp->copied_seq;
int hasfin = !skb_queue_empty(&sk->sk_receive_queue) ?
tcp_hdr((struct sk_buff *)
sk->sk_receive_queue.prev)->fin : 0;
if (queued_data && hasfin)
queued_data--;
if (queued_data &&
tp->defer_tcp_accept.listen_sk->sk_state == TCP_LISTEN) {
if (sock_flag(sk, SOCK_KEEPOPEN)) {
inet_csk_reset_keepalive_timer(sk,
keepalive_time_when(tp));
} else {
inet_csk_delete_keepalive_timer(sk);
}
inet_csk_reqsk_queue_add(
tp->defer_tcp_accept.listen_sk,
tp->defer_tcp_accept.request,
sk);
tp->defer_tcp_accept.listen_sk->sk_data_ready(
tp->defer_tcp_accept.listen_sk, 0);
sock_put(tp->defer_tcp_accept.listen_sk);
sock_put(sk);
tp->defer_tcp_accept.listen_sk = NULL;
tp->defer_tcp_accept.request = NULL;
} else if (hasfin ||
tp->defer_tcp_accept.listen_sk->sk_state != TCP_LISTEN) {
tcp_reset(sk);
return -1;
}
}
return 0;
}
static int tcp_copy_to_iovec(struct sock *sk, struct sk_buff *skb, int hlen)
{
struct tcp_sock *tp = tcp_sk(sk);
@ -4944,8 +4901,6 @@ step5:
tcp_data_snd_check(sk);
tcp_ack_snd_check(sk);
tcp_defer_accept_check(sk);
return 0;
csum_error:

8
net/ipv4/tcp_ipv4.c
View File

@ -1918,14 +1918,6 @@ int tcp_v4_destroy_sock(struct sock *sk)
sk->sk_sndmsg_page = NULL;
}
if (tp->defer_tcp_accept.request) {
reqsk_free(tp->defer_tcp_accept.request);
sock_put(tp->defer_tcp_accept.listen_sk);
sock_put(sk);
tp->defer_tcp_accept.listen_sk = NULL;
tp->defer_tcp_accept.request = NULL;
}
atomic_dec(&tcp_sockets_allocated);
return 0;

32
net/ipv4/tcp_minisocks.c
View File

@ -571,8 +571,10 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
does sequence test, SYN is truncated, and thus we consider
it a bare ACK.
Both ends (listening sockets) accept the new incoming
connection and try to talk to each other. 8-)
If icsk->icsk_accept_queue.rskq_defer_accept, we silently drop this
bare ACK. Otherwise, we create an established connection. Both
ends (listening sockets) accept the new incoming connection and try
to talk to each other. 8-)
Note: This case is both harmless, and rare. Possibility is about the
same as us discovering intelligent life on another plant tomorrow.
@ -640,6 +642,13 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
if (!(flg & TCP_FLAG_ACK))
return NULL;
/* If TCP_DEFER_ACCEPT is set, drop bare ACK. */
if (inet_csk(sk)->icsk_accept_queue.rskq_defer_accept &&
TCP_SKB_CB(skb)->end_seq == tcp_rsk(req)->rcv_isn + 1) {
inet_rsk(req)->acked = 1;
return NULL;
}
/* OK, ACK is valid, create big socket and
* feed this segment to it. It will repeat all
* the tests. THIS SEGMENT MUST MOVE SOCKET TO
@ -678,24 +687,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
inet_csk_reqsk_queue_unlink(sk, req, prev);
inet_csk_reqsk_queue_removed(sk, req);
if (inet_csk(sk)->icsk_accept_queue.rskq_defer_accept &&
TCP_SKB_CB(skb)->end_seq == tcp_rsk(req)->rcv_isn + 1) {
/* the accept queue handling is done is est recv slow
* path so lets make sure to start there
*/
tcp_sk(child)->pred_flags = 0;
sock_hold(sk);
sock_hold(child);
tcp_sk(child)->defer_tcp_accept.listen_sk = sk;
tcp_sk(child)->defer_tcp_accept.request = req;
inet_csk_reset_keepalive_timer(child,
inet_csk(sk)->icsk_accept_queue.rskq_defer_accept * HZ);
} else {
inet_csk_reqsk_queue_add(sk, req, child);
}
inet_csk_reqsk_queue_add(sk, req, child);
return child;
listen_overflow:

5
net/ipv4/tcp_timer.c
View File

@ -489,11 +489,6 @@ static void tcp_keepalive_timer (unsigned long data)
goto death;
}
if (tp->defer_tcp_accept.request && sk->sk_state == TCP_ESTABLISHED) {
tcp_send_active_reset(sk, GFP_ATOMIC);
goto death;
}
if (!sock_flag(sk, SOCK_KEEPOPEN) || sk->sk_state == TCP_CLOSE)
goto out;

5
net/ipv6/datagram.c
View File

@ -705,6 +705,11 @@ int datagram_send_ctl(struct net *net,
}
*hlimit = *(int *)CMSG_DATA(cmsg);
if (*hlimit < -1 || *hlimit > 0xff) {
err = -EINVAL;
goto exit_f;
}
break;
case IPV6_TCLASS:

12
net/ipv6/ipv6_sockglue.c
View File

@ -67,7 +67,7 @@ int ip6_ra_control(struct sock *sk, int sel, void (*destructor)(struct sock *))
/* RA packet may be delivered ONLY to IPPROTO_RAW socket */
if (sk->sk_type != SOCK_RAW || inet_sk(sk)->num != IPPROTO_RAW)
return -EINVAL;
return -ENOPROTOOPT;
new_ra = (sel>=0) ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
@ -446,7 +446,7 @@ done:
case IPV6_MULTICAST_HOPS:
if (sk->sk_type == SOCK_STREAM)
goto e_inval;
break;
if (optlen < sizeof(int))
goto e_inval;
if (val > 255 || val < -1)
@ -458,13 +458,15 @@ done:
case IPV6_MULTICAST_LOOP:
if (optlen < sizeof(int))
goto e_inval;
if (val != valbool)
goto e_inval;
np->mc_loop = valbool;
retv = 0;
break;
case IPV6_MULTICAST_IF:
if (sk->sk_type == SOCK_STREAM)
goto e_inval;
break;
if (optlen < sizeof(int))
goto e_inval;
@ -860,7 +862,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
if (sk->sk_protocol != IPPROTO_UDP &&
sk->sk_protocol != IPPROTO_UDPLITE &&
sk->sk_protocol != IPPROTO_TCP)
return -EINVAL;
return -ENOPROTOOPT;
if (sk->sk_state != TCP_ESTABLISHED)
return -ENOTCONN;
val = sk->sk_family;
@ -874,6 +876,8 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
return -EINVAL;
if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0)))
return -EFAULT;
if (gsf.gf_group.ss_family != AF_INET6)
return -EADDRNOTAVAIL;
lock_sock(sk);
err = ip6_mc_msfget(sk, &gsf,
(struct group_filter __user *)optval, optlen);

4
net/ipv6/raw.c
View File

@ -1169,7 +1169,8 @@ static int raw6_destroy(struct sock *sk)
lock_sock(sk);
ip6_flush_pending_frames(sk);
release_sock(sk);
return 0;
return inet6_destroy_sock(sk);
}
static int rawv6_init_sk(struct sock *sk)
@ -1200,7 +1201,6 @@ struct proto rawv6_prot = {
.disconnect = udp_disconnect,
.ioctl = rawv6_ioctl,
.init = rawv6_init_sk,
.destroy = inet6_destroy_sock,
.setsockopt = rawv6_setsockopt,
.getsockopt = rawv6_getsockopt,
.sendmsg = rawv6_sendmsg,

8
net/ipv6/route.c
View File

@ -2196,8 +2196,12 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
NLA_PUT_U32(skb, RTA_PRIORITY, rt->rt6i_metric);
expires = (rt->rt6i_flags & RTF_EXPIRES) ?
rt->rt6i_expires - jiffies : 0;
if (!(rt->rt6i_flags & RTF_EXPIRES))
expires = 0;
else if (rt->rt6i_expires - jiffies < INT_MAX)
expires = rt->rt6i_expires - jiffies;
else
expires = INT_MAX;
if (rtnl_put_cacheinfo(skb, &rt->u.dst, 0, 0, 0,
expires, rt->u.dst.error) < 0)

3
net/netfilter/nf_conntrack_core.c
View File

@ -196,8 +196,6 @@ destroy_conntrack(struct nf_conntrack *nfct)
if (l4proto && l4proto->destroy)
l4proto->destroy(ct);
nf_ct_ext_destroy(ct);
rcu_read_unlock();
spin_lock_bh(&nf_conntrack_lock);
@ -520,6 +518,7 @@ static void nf_conntrack_free_rcu(struct rcu_head *head)
void nf_conntrack_free(struct nf_conn *ct)
{
nf_ct_ext_destroy(ct);
call_rcu(&ct->rcu, nf_conntrack_free_rcu);
}
EXPORT_SYMBOL_GPL(nf_conntrack_free);

4
net/netfilter/nf_log.c
View File

@ -92,10 +92,6 @@ void nf_log_packet(int pf,
vsnprintf(prefix, sizeof(prefix), fmt, args);
va_end(args);
logger->logfn(pf, hooknum, skb, in, out, loginfo, prefix);
} else if (net_ratelimit()) {
printk(KERN_WARNING "nf_log_packet: can\'t log since "
"no backend logging module loaded in! Please either "
"load one, or disable logging explicitly\n");
}
rcu_read_unlock();
}