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

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This commit is contained in:
Linus Torvalds 2005-12-11 20:23:58 -08:00
parent fe3f2053fd 73d4f84fd0
commit 913f2d792f
19 changed files with 305 additions and 225 deletions
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15
drivers/net/tg3.c
View file

@ -68,8 +68,8 @@
#define DRV_MODULE_NAME "tg3"
#define PFX DRV_MODULE_NAME ": "
#define DRV_MODULE_VERSION "3.43"
#define DRV_MODULE_RELDATE "Oct 24, 2005"
#define DRV_MODULE_VERSION "3.44"
#define DRV_MODULE_RELDATE "Dec 6, 2005"
#define TG3_DEF_MAC_MODE 0
#define TG3_DEF_RX_MODE 0
@ -3565,12 +3565,15 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (!spin_trylock(&tp->tx_lock))
return NETDEV_TX_LOCKED;
/* This is a hard error, log it. */
if (unlikely(TX_BUFFS_AVAIL(tp) <= (skb_shinfo(skb)->nr_frags + 1))) {
netif_stop_queue(dev);
if (!netif_queue_stopped(dev)) {
netif_stop_queue(dev);
/* This is a hard error, log it. */
printk(KERN_ERR PFX "%s: BUG! Tx Ring full when "
"queue awake!\n", dev->name);
}
spin_unlock(&tp->tx_lock);
printk(KERN_ERR PFX "%s: BUG! Tx Ring full when queue awake!\n",
dev->name);
return NETDEV_TX_BUSY;
}

3
include/linux/sysctl.h
View file

@ -670,6 +670,9 @@ enum {
NET_DECNET_DST_GC_INTERVAL = 9,
NET_DECNET_CONF = 10,
NET_DECNET_NO_FC_MAX_CWND = 11,
NET_DECNET_MEM = 12,
NET_DECNET_RMEM = 13,
NET_DECNET_WMEM = 14,
NET_DECNET_DEBUG_LEVEL = 255
};

4
include/net/dn.h
View file

@ -234,4 +234,8 @@ extern int decnet_di_count;
extern int decnet_dr_count;
extern int decnet_no_fc_max_cwnd;
extern int sysctl_decnet_mem[3];
extern int sysctl_decnet_wmem[3];
extern int sysctl_decnet_rmem[3];
#endif /* _NET_DN_H */

3
net/core/dev.c
View file

@ -1113,7 +1113,8 @@ out:
void netdev_rx_csum_fault(struct net_device *dev)
{
if (net_ratelimit()) {
printk(KERN_ERR "%s: hw csum failure.\n", dev->name);
printk(KERN_ERR "%s: hw csum failure.\n",
dev ? dev->name : "<unknown>");
dump_stack();
}
}

2
net/core/skbuff.c
View file

@ -1725,7 +1725,7 @@ unsigned int skb_find_text(struct sk_buff *skb, unsigned int from,
* of the skb if any page alloc fails user this procedure returns -ENOMEM
*/
int skb_append_datato_frags(struct sock *sk, struct sk_buff *skb,
int getfrag(void *from, char *to, int offset,
int (*getfrag)(void *from, char *to, int offset,
int len, int odd, struct sk_buff *skb),
void *from, int length)
{

25
net/decnet/af_decnet.c
View file

@ -153,6 +153,7 @@ static struct proto_ops dn_proto_ops;
static DEFINE_RWLOCK(dn_hash_lock);
static struct hlist_head dn_sk_hash[DN_SK_HASH_SIZE];
static struct hlist_head dn_wild_sk;
static atomic_t decnet_memory_allocated;
static int __dn_setsockopt(struct socket *sock, int level, int optname, char __user *optval, int optlen, int flags);
static int __dn_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen, int flags);
@ -446,10 +447,26 @@ static void dn_destruct(struct sock *sk)
dst_release(xchg(&sk->sk_dst_cache, NULL));
}
static int dn_memory_pressure;
static void dn_enter_memory_pressure(void)
{
if (!dn_memory_pressure) {
dn_memory_pressure = 1;
}
}
static struct proto dn_proto = {
.name = "DECNET",
.owner = THIS_MODULE,
.obj_size = sizeof(struct dn_sock),
.name = "NSP",
.owner = THIS_MODULE,
.enter_memory_pressure = dn_enter_memory_pressure,
.memory_pressure = &dn_memory_pressure,
.memory_allocated = &decnet_memory_allocated,
.sysctl_mem = sysctl_decnet_mem,
.sysctl_wmem = sysctl_decnet_wmem,
.sysctl_rmem = sysctl_decnet_rmem,
.max_header = DN_MAX_NSP_DATA_HEADER + 64,
.obj_size = sizeof(struct dn_sock),
};
static struct sock *dn_alloc_sock(struct socket *sock, gfp_t gfp)
@ -470,6 +487,8 @@ static struct sock *dn_alloc_sock(struct socket *sock, gfp_t gfp)
sk->sk_family = PF_DECnet;
sk->sk_protocol = 0;
sk->sk_allocation = gfp;
sk->sk_sndbuf = sysctl_decnet_wmem[1];
sk->sk_rcvbuf = sysctl_decnet_rmem[1];
/* Initialization of DECnet Session Control Port */
scp = DN_SK(sk);

33
net/decnet/sysctl_net_decnet.c
View file

@ -10,6 +10,7 @@
*
* Changes:
* Steve Whitehouse - C99 changes and default device handling
* Steve Whitehouse - Memory buffer settings, like the tcp ones
*
*/
#include <linux/config.h>
@ -37,6 +38,11 @@ int decnet_dr_count = 3;
int decnet_log_martians = 1;
int decnet_no_fc_max_cwnd = NSP_MIN_WINDOW;
/* Reasonable defaults, I hope, based on tcp's defaults */
int sysctl_decnet_mem[3] = { 768 << 3, 1024 << 3, 1536 << 3 };
int sysctl_decnet_wmem[3] = { 4 * 1024, 16 * 1024, 128 * 1024 };
int sysctl_decnet_rmem[3] = { 4 * 1024, 87380, 87380 * 2 };
#ifdef CONFIG_SYSCTL
extern int decnet_dst_gc_interval;
static int min_decnet_time_wait[] = { 5 };
@ -428,6 +434,33 @@ static ctl_table dn_table[] = {
.extra1 = &min_decnet_no_fc_max_cwnd,
.extra2 = &max_decnet_no_fc_max_cwnd
},
{
.ctl_name = NET_DECNET_MEM,
.procname = "decnet_mem",
.data = &sysctl_decnet_mem,
.maxlen = sizeof(sysctl_decnet_mem),
.mode = 0644,
.proc_handler = &proc_dointvec,
.strategy = &sysctl_intvec,
},
{
.ctl_name = NET_DECNET_RMEM,
.procname = "decnet_rmem",
.data = &sysctl_decnet_rmem,
.maxlen = sizeof(sysctl_decnet_rmem),
.mode = 0644,
.proc_handler = &proc_dointvec,
.strategy = &sysctl_intvec,
},
{
.ctl_name = NET_DECNET_WMEM,
.procname = "decnet_wmem",
.data = &sysctl_decnet_wmem,
.maxlen = sizeof(sysctl_decnet_wmem),
.mode = 0644,
.proc_handler = &proc_dointvec,
.strategy = &sysctl_intvec,
},
{
.ctl_name = NET_DECNET_DEBUG_LEVEL,
.procname = "debug",

8
net/ipv4/netfilter/Kconfig
View file

@ -56,8 +56,8 @@ config IP_NF_CONNTRACK_MARK
instead of the individual packets.
config IP_NF_CONNTRACK_EVENTS
bool "Connection tracking events"
depends on IP_NF_CONNTRACK
bool "Connection tracking events (EXPERIMENTAL)"
depends on EXPERIMENTAL && IP_NF_CONNTRACK
help
If this option is enabled, the connection tracking code will
provide a notifier chain that can be used by other kernel code
@ -66,8 +66,8 @@ config IP_NF_CONNTRACK_EVENTS
IF unsure, say `N'.
config IP_NF_CONNTRACK_NETLINK
tristate 'Connection tracking netlink interface'
depends on IP_NF_CONNTRACK && NETFILTER_NETLINK
tristate 'Connection tracking netlink interface (EXPERIMENTAL)'
depends on EXPERIMENTAL && IP_NF_CONNTRACK && NETFILTER_NETLINK
depends on IP_NF_CONNTRACK!=y || NETFILTER_NETLINK!=m
help
This option enables support for a netlink-based userspace interface

20
net/ipv4/netfilter/ip_conntrack_core.c
View file

@ -1345,6 +1345,11 @@ static int kill_all(struct ip_conntrack *i, void *data)
return 1;
}
void ip_conntrack_flush(void)
{
ip_ct_iterate_cleanup(kill_all, NULL);
}
static void free_conntrack_hash(struct list_head *hash, int vmalloced,int size)
{
if (vmalloced)
@ -1354,8 +1359,12 @@ static void free_conntrack_hash(struct list_head *hash, int vmalloced,int size)
get_order(sizeof(struct list_head) * size));
}
void ip_conntrack_flush(void)
/* Mishearing the voices in his head, our hero wonders how he's
supposed to kill the mall. */
void ip_conntrack_cleanup(void)
{
ip_ct_attach = NULL;
/* This makes sure all current packets have passed through
netfilter framework. Roll on, two-stage module
delete... */
@ -1363,7 +1372,7 @@ void ip_conntrack_flush(void)
ip_ct_event_cache_flush();
i_see_dead_people:
ip_ct_iterate_cleanup(kill_all, NULL);
ip_conntrack_flush();
if (atomic_read(&ip_conntrack_count) != 0) {
schedule();
goto i_see_dead_people;
@ -1371,14 +1380,7 @@ void ip_conntrack_flush(void)
/* wait until all references to ip_conntrack_untracked are dropped */
while (atomic_read(&ip_conntrack_untracked.ct_general.use) > 1)
schedule();
}
/* Mishearing the voices in his head, our hero wonders how he's
supposed to kill the mall. */
void ip_conntrack_cleanup(void)
{
ip_ct_attach = NULL;
ip_conntrack_flush();
kmem_cache_destroy(ip_conntrack_cachep);
kmem_cache_destroy(ip_conntrack_expect_cachep);
free_conntrack_hash(ip_conntrack_hash, ip_conntrack_vmalloc,

12
net/ipv4/netfilter/ip_conntrack_netlink.c
View file

@ -503,7 +503,7 @@ ctnetlink_parse_tuple_ip(struct nfattr *attr, struct ip_conntrack_tuple *tuple)
}
static const size_t cta_min_proto[CTA_PROTO_MAX] = {
[CTA_PROTO_NUM-1] = sizeof(u_int16_t),
[CTA_PROTO_NUM-1] = sizeof(u_int8_t),
[CTA_PROTO_SRC_PORT-1] = sizeof(u_int16_t),
[CTA_PROTO_DST_PORT-1] = sizeof(u_int16_t),
[CTA_PROTO_ICMP_TYPE-1] = sizeof(u_int8_t),
@ -528,7 +528,7 @@ ctnetlink_parse_tuple_proto(struct nfattr *attr,
if (!tb[CTA_PROTO_NUM-1])
return -EINVAL;
tuple->dst.protonum = *(u_int16_t *)NFA_DATA(tb[CTA_PROTO_NUM-1]);
tuple->dst.protonum = *(u_int8_t *)NFA_DATA(tb[CTA_PROTO_NUM-1]);
proto = ip_conntrack_proto_find_get(tuple->dst.protonum);
@ -728,11 +728,9 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
return -ENOENT;
}
}
if (del_timer(&ct->timeout)) {
ip_conntrack_put(ct);
if (del_timer(&ct->timeout))
ct->timeout.function((unsigned long)ct);
return 0;
}
ip_conntrack_put(ct);
DEBUGP("leaving\n");
@ -877,7 +875,7 @@ ctnetlink_change_status(struct ip_conntrack *ct, struct nfattr *cda[])
DEBUGP("NAT status: %lu\n",
status & (IPS_NAT_MASK | IPS_NAT_DONE_MASK));
if (ip_nat_initialized(ct, hooknum))
if (ip_nat_initialized(ct, HOOK2MANIP(hooknum)))
return -EEXIST;
ip_nat_setup_info(ct, &range, hooknum);

3
net/ipv4/netfilter/ip_conntrack_proto_tcp.c
View file

@ -341,9 +341,10 @@ static int tcp_print_conntrack(struct seq_file *s,
static int tcp_to_nfattr(struct sk_buff *skb, struct nfattr *nfa,
const struct ip_conntrack *ct)
{
struct nfattr *nest_parms = NFA_NEST(skb, CTA_PROTOINFO_TCP);
struct nfattr *nest_parms;
read_lock_bh(&tcp_lock);
nest_parms = NFA_NEST(skb, CTA_PROTOINFO_TCP);
NFA_PUT(skb, CTA_PROTOINFO_TCP_STATE, sizeof(u_int8_t),
&ct->proto.tcp.state);
read_unlock_bh(&tcp_lock);

245
net/ipv4/tcp_output.c
View file

@ -262,122 +262,139 @@ static __inline__ u16 tcp_select_window(struct sock *sk)
* We are working here with either a clone of the original
* SKB, or a fresh unique copy made by the retransmit engine.
*/
static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb)
static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it, gfp_t gfp_mask)
{
if (skb != NULL) {
const struct inet_connection_sock *icsk = inet_csk(sk);
struct inet_sock *inet = inet_sk(sk);
struct tcp_sock *tp = tcp_sk(sk);
struct tcp_skb_cb *tcb = TCP_SKB_CB(skb);
int tcp_header_size = tp->tcp_header_len;
struct tcphdr *th;
int sysctl_flags;
int err;
const struct inet_connection_sock *icsk = inet_csk(sk);
struct inet_sock *inet;
struct tcp_sock *tp;
struct tcp_skb_cb *tcb;
int tcp_header_size;
struct tcphdr *th;
int sysctl_flags;
int err;
BUG_ON(!tcp_skb_pcount(skb));
BUG_ON(!skb || !tcp_skb_pcount(skb));
/* If congestion control is doing timestamping, we must
* take such a timestamp before we potentially clone/copy.
*/
if (icsk->icsk_ca_ops->rtt_sample)
__net_timestamp(skb);
if (likely(clone_it)) {
if (unlikely(skb_cloned(skb)))
skb = pskb_copy(skb, gfp_mask);
else
skb = skb_clone(skb, gfp_mask);
if (unlikely(!skb))
return -ENOBUFS;
}
inet = inet_sk(sk);
tp = tcp_sk(sk);
tcb = TCP_SKB_CB(skb);
tcp_header_size = tp->tcp_header_len;
#define SYSCTL_FLAG_TSTAMPS 0x1
#define SYSCTL_FLAG_WSCALE 0x2
#define SYSCTL_FLAG_SACK 0x4
/* If congestion control is doing timestamping */
if (icsk->icsk_ca_ops->rtt_sample)
__net_timestamp(skb);
sysctl_flags = 0;
if (tcb->flags & TCPCB_FLAG_SYN) {
tcp_header_size = sizeof(struct tcphdr) + TCPOLEN_MSS;
if(sysctl_tcp_timestamps) {
tcp_header_size += TCPOLEN_TSTAMP_ALIGNED;
sysctl_flags |= SYSCTL_FLAG_TSTAMPS;
}
if(sysctl_tcp_window_scaling) {
tcp_header_size += TCPOLEN_WSCALE_ALIGNED;
sysctl_flags |= SYSCTL_FLAG_WSCALE;
}
if(sysctl_tcp_sack) {
sysctl_flags |= SYSCTL_FLAG_SACK;
if(!(sysctl_flags & SYSCTL_FLAG_TSTAMPS))
tcp_header_size += TCPOLEN_SACKPERM_ALIGNED;
}
} else if (tp->rx_opt.eff_sacks) {
/* A SACK is 2 pad bytes, a 2 byte header, plus
* 2 32-bit sequence numbers for each SACK block.
*/
tcp_header_size += (TCPOLEN_SACK_BASE_ALIGNED +
(tp->rx_opt.eff_sacks * TCPOLEN_SACK_PERBLOCK));
sysctl_flags = 0;
if (unlikely(tcb->flags & TCPCB_FLAG_SYN)) {
tcp_header_size = sizeof(struct tcphdr) + TCPOLEN_MSS;
if(sysctl_tcp_timestamps) {
tcp_header_size += TCPOLEN_TSTAMP_ALIGNED;
sysctl_flags |= SYSCTL_FLAG_TSTAMPS;
}
if (tcp_packets_in_flight(tp) == 0)
tcp_ca_event(sk, CA_EVENT_TX_START);
th = (struct tcphdr *) skb_push(skb, tcp_header_size);
skb->h.th = th;
skb_set_owner_w(skb, sk);
/* Build TCP header and checksum it. */
th->source = inet->sport;
th->dest = inet->dport;
th->seq = htonl(tcb->seq);
th->ack_seq = htonl(tp->rcv_nxt);
*(((__u16 *)th) + 6) = htons(((tcp_header_size >> 2) << 12) | tcb->flags);
if (tcb->flags & TCPCB_FLAG_SYN) {
/* RFC1323: The window in SYN & SYN/ACK segments
* is never scaled.
*/
th->window = htons(tp->rcv_wnd);
} else {
th->window = htons(tcp_select_window(sk));
if (sysctl_tcp_window_scaling) {
tcp_header_size += TCPOLEN_WSCALE_ALIGNED;
sysctl_flags |= SYSCTL_FLAG_WSCALE;
}
th->check = 0;
th->urg_ptr = 0;
if (tp->urg_mode &&
between(tp->snd_up, tcb->seq+1, tcb->seq+0xFFFF)) {
th->urg_ptr = htons(tp->snd_up-tcb->seq);
th->urg = 1;
if (sysctl_tcp_sack) {
sysctl_flags |= SYSCTL_FLAG_SACK;
if (!(sysctl_flags & SYSCTL_FLAG_TSTAMPS))
tcp_header_size += TCPOLEN_SACKPERM_ALIGNED;
}
if (tcb->flags & TCPCB_FLAG_SYN) {
tcp_syn_build_options((__u32 *)(th + 1),
tcp_advertise_mss(sk),
(sysctl_flags & SYSCTL_FLAG_TSTAMPS),
(sysctl_flags & SYSCTL_FLAG_SACK),
(sysctl_flags & SYSCTL_FLAG_WSCALE),
tp->rx_opt.rcv_wscale,
tcb->when,
tp->rx_opt.ts_recent);
} else {
tcp_build_and_update_options((__u32 *)(th + 1),
tp, tcb->when);
TCP_ECN_send(sk, tp, skb, tcp_header_size);
}
tp->af_specific->send_check(sk, th, skb->len, skb);
if (tcb->flags & TCPCB_FLAG_ACK)
tcp_event_ack_sent(sk, tcp_skb_pcount(skb));
if (skb->len != tcp_header_size)
tcp_event_data_sent(tp, skb, sk);
TCP_INC_STATS(TCP_MIB_OUTSEGS);
err = tp->af_specific->queue_xmit(skb, 0);
if (err <= 0)
return err;
tcp_enter_cwr(sk);
/* NET_XMIT_CN is special. It does not guarantee,
* that this packet is lost. It tells that device
* is about to start to drop packets or already
* drops some packets of the same priority and
* invokes us to send less aggressively.
} else if (unlikely(tp->rx_opt.eff_sacks)) {
/* A SACK is 2 pad bytes, a 2 byte header, plus
* 2 32-bit sequence numbers for each SACK block.
*/
return err == NET_XMIT_CN ? 0 : err;
tcp_header_size += (TCPOLEN_SACK_BASE_ALIGNED +
(tp->rx_opt.eff_sacks *
TCPOLEN_SACK_PERBLOCK));
}
return -ENOBUFS;
if (tcp_packets_in_flight(tp) == 0)
tcp_ca_event(sk, CA_EVENT_TX_START);
th = (struct tcphdr *) skb_push(skb, tcp_header_size);
skb->h.th = th;
skb_set_owner_w(skb, sk);
/* Build TCP header and checksum it. */
th->source = inet->sport;
th->dest = inet->dport;
th->seq = htonl(tcb->seq);
th->ack_seq = htonl(tp->rcv_nxt);
*(((__u16 *)th) + 6) = htons(((tcp_header_size >> 2) << 12) |
tcb->flags);
if (unlikely(tcb->flags & TCPCB_FLAG_SYN)) {
/* RFC1323: The window in SYN & SYN/ACK segments
* is never scaled.
*/
th->window = htons(tp->rcv_wnd);
} else {
th->window = htons(tcp_select_window(sk));
}
th->check = 0;
th->urg_ptr = 0;
if (unlikely(tp->urg_mode &&
between(tp->snd_up, tcb->seq+1, tcb->seq+0xFFFF))) {
th->urg_ptr = htons(tp->snd_up-tcb->seq);
th->urg = 1;
}
if (unlikely(tcb->flags & TCPCB_FLAG_SYN)) {
tcp_syn_build_options((__u32 *)(th + 1),
tcp_advertise_mss(sk),
(sysctl_flags & SYSCTL_FLAG_TSTAMPS),
(sysctl_flags & SYSCTL_FLAG_SACK),
(sysctl_flags & SYSCTL_FLAG_WSCALE),
tp->rx_opt.rcv_wscale,
tcb->when,
tp->rx_opt.ts_recent);
} else {
tcp_build_and_update_options((__u32 *)(th + 1),
tp, tcb->when);
TCP_ECN_send(sk, tp, skb, tcp_header_size);
}
tp->af_specific->send_check(sk, th, skb->len, skb);
if (likely(tcb->flags & TCPCB_FLAG_ACK))
tcp_event_ack_sent(sk, tcp_skb_pcount(skb));
if (skb->len != tcp_header_size)
tcp_event_data_sent(tp, skb, sk);
TCP_INC_STATS(TCP_MIB_OUTSEGS);
err = tp->af_specific->queue_xmit(skb, 0);
if (unlikely(err <= 0))
return err;
tcp_enter_cwr(sk);
/* NET_XMIT_CN is special. It does not guarantee,
* that this packet is lost. It tells that device
* is about to start to drop packets or already
* drops some packets of the same priority and
* invokes us to send less aggressively.
*/
return err == NET_XMIT_CN ? 0 : err;
#undef SYSCTL_FLAG_TSTAMPS
#undef SYSCTL_FLAG_WSCALE
#undef SYSCTL_FLAG_SACK
@ -1036,7 +1053,7 @@ static int tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle)
TCP_SKB_CB(skb)->when = tcp_time_stamp;
if (unlikely(tcp_transmit_skb(sk, skb_clone(skb, GFP_ATOMIC))))
if (unlikely(tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC)))
break;
/* Advance the send_head. This one is sent out.
@ -1109,7 +1126,7 @@ void tcp_push_one(struct sock *sk, unsigned int mss_now)
/* Send it out now. */
TCP_SKB_CB(skb)->when = tcp_time_stamp;
if (likely(!tcp_transmit_skb(sk, skb_clone(skb, sk->sk_allocation)))) {
if (likely(!tcp_transmit_skb(sk, skb, 1, sk->sk_allocation))) {
update_send_head(sk, tp, skb);
tcp_cwnd_validate(sk, tp);
return;
@ -1429,9 +1446,7 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
*/
TCP_SKB_CB(skb)->when = tcp_time_stamp;
err = tcp_transmit_skb(sk, (skb_cloned(skb) ?
pskb_copy(skb, GFP_ATOMIC):
skb_clone(skb, GFP_ATOMIC)));
err = tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC);
if (err == 0) {
/* Update global TCP statistics. */
@ -1665,7 +1680,7 @@ void tcp_send_active_reset(struct sock *sk, gfp_t priority)
TCP_SKB_CB(skb)->seq = tcp_acceptable_seq(sk, tp);
TCP_SKB_CB(skb)->end_seq = TCP_SKB_CB(skb)->seq;
TCP_SKB_CB(skb)->when = tcp_time_stamp;
if (tcp_transmit_skb(sk, skb))
if (tcp_transmit_skb(sk, skb, 0, priority))
NET_INC_STATS(LINUX_MIB_TCPABORTFAILED);
}
@ -1700,7 +1715,7 @@ int tcp_send_synack(struct sock *sk)
TCP_ECN_send_synack(tcp_sk(sk), skb);
}
TCP_SKB_CB(skb)->when = tcp_time_stamp;
return tcp_transmit_skb(sk, skb_clone(skb, GFP_ATOMIC));
return tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC);
}
/*
@ -1861,7 +1876,7 @@ int tcp_connect(struct sock *sk)
__skb_queue_tail(&sk->sk_write_queue, buff);
sk_charge_skb(sk, buff);
tp->packets_out += tcp_skb_pcount(buff);
tcp_transmit_skb(sk, skb_clone(buff, GFP_KERNEL));
tcp_transmit_skb(sk, buff, 1, GFP_KERNEL);
TCP_INC_STATS(TCP_MIB_ACTIVEOPENS);
/* Timer for repeating the SYN until an answer. */
@ -1957,7 +1972,7 @@ void tcp_send_ack(struct sock *sk)
/* Send it off, this clears delayed acks for us. */
TCP_SKB_CB(buff)->seq = TCP_SKB_CB(buff)->end_seq = tcp_acceptable_seq(sk, tp);
TCP_SKB_CB(buff)->when = tcp_time_stamp;
tcp_transmit_skb(sk, buff);
tcp_transmit_skb(sk, buff, 0, GFP_ATOMIC);
}
}
@ -1997,7 +2012,7 @@ static int tcp_xmit_probe_skb(struct sock *sk, int urgent)
TCP_SKB_CB(skb)->seq = urgent ? tp->snd_una : tp->snd_una - 1;
TCP_SKB_CB(skb)->end_seq = TCP_SKB_CB(skb)->seq;
TCP_SKB_CB(skb)->when = tcp_time_stamp;
return tcp_transmit_skb(sk, skb);
return tcp_transmit_skb(sk, skb, 0, GFP_ATOMIC);
}
int tcp_write_wakeup(struct sock *sk)
@ -2030,7 +2045,7 @@ int tcp_write_wakeup(struct sock *sk)
TCP_SKB_CB(skb)->flags |= TCPCB_FLAG_PSH;
TCP_SKB_CB(skb)->when = tcp_time_stamp;
err = tcp_transmit_skb(sk, skb_clone(skb, GFP_ATOMIC));
err = tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC);
if (!err) {
update_send_head(sk, tp, skb);
}

16
net/ipv4/tcp_vegas.c
View file

@ -215,14 +215,6 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack,
vegas->beg_snd_nxt = tp->snd_nxt;
vegas->beg_snd_cwnd = tp->snd_cwnd;
/* Take into account the current RTT sample too, to
* decrease the impact of delayed acks. This double counts
* this sample since we count it for the next window as well,
* but that's not too awful, since we're taking the min,
* rather than averaging.
*/
tcp_vegas_rtt_calc(sk, seq_rtt * 1000);
/* We do the Vegas calculations only if we got enough RTT
* samples that we can be reasonably sure that we got
* at least one RTT sample that wasn't from a delayed ACK.
@ -333,11 +325,11 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack,
else if (tp->snd_cwnd > tp->snd_cwnd_clamp)
tp->snd_cwnd = tp->snd_cwnd_clamp;
}
}
/* Wipe the slate clean for the next RTT. */
vegas->cntRTT = 0;
vegas->minRTT = 0x7fffffff;
/* Wipe the slate clean for the next RTT. */
vegas->cntRTT = 0;
vegas->minRTT = 0x7fffffff;
}
}
/* Extract info for Tcp socket info provided via netlink. */

2
net/ipv6/esp6.c
View file

@ -248,7 +248,7 @@ static u32 esp6_get_max_size(struct xfrm_state *x, int mtu)
if (esp->conf.padlen)
mtu = ALIGN(mtu, esp->conf.padlen);
return mtu + x->props.header_len + esp->auth.icv_full_len;
return mtu + x->props.header_len + esp->auth.icv_trunc_len;
}
static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,

12
net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
View file

@ -68,8 +68,8 @@ static int icmpv6_invert_tuple(struct nf_conntrack_tuple *tuple,
[ICMPV6_NI_REPLY - 128] = ICMPV6_NI_REPLY +1
};
__u8 type = orig->dst.u.icmp.type - 128;
if (type >= sizeof(invmap) || !invmap[type])
int type = orig->dst.u.icmp.type - 128;
if (type < 0 || type >= sizeof(invmap) || !invmap[type])
return 0;
tuple->src.u.icmp.id = orig->src.u.icmp.id;
@ -129,12 +129,12 @@ static int icmpv6_new(struct nf_conn *conntrack,
[ICMPV6_ECHO_REQUEST - 128] = 1,
[ICMPV6_NI_QUERY - 128] = 1
};
int type = conntrack->tuplehash[0].tuple.dst.u.icmp.type - 128;
if (conntrack->tuplehash[0].tuple.dst.u.icmp.type - 128 >= sizeof(valid_new)
|| !valid_new[conntrack->tuplehash[0].tuple.dst.u.icmp.type - 128]) {
if (type < 0 || type >= sizeof(valid_new) || !valid_new[type]) {
/* Can't create a new ICMPv6 `conn' with this. */
DEBUGP("icmp: can't create new conn with type %u\n",
conntrack->tuplehash[0].tuple.dst.u.icmp.type);
DEBUGP("icmpv6: can't create new conn with type %u\n",
type + 128);
NF_CT_DUMP_TUPLE(&conntrack->tuplehash[0].tuple);
return 0;
}

4
net/netfilter/Kconfig
View file

@ -61,8 +61,8 @@ config NF_CONNTRACK_MARK
instead of the individual packets.
config NF_CONNTRACK_EVENTS
bool "Connection tracking events"
depends on NF_CONNTRACK
bool "Connection tracking events (EXPERIMENTAL)"
depends on EXPERIMENTAL && NF_CONNTRACK
help
If this option is enabled, the connection tracking code will
provide a notifier chain that can be used by other kernel code

3
net/netfilter/nf_conntrack_core.c
View file

@ -1383,6 +1383,9 @@ void nf_conntrack_cleanup(void)
schedule();
goto i_see_dead_people;
}
/* wait until all references to nf_conntrack_untracked are dropped */
while (atomic_read(&nf_conntrack_untracked.ct_general.use) > 1)
schedule();
for (i = 0; i < NF_CT_F_NUM; i++) {
if (nf_ct_cache[i].use == 0)

5
net/netfilter/nfnetlink.c
View file

@ -162,7 +162,7 @@ nfnetlink_check_attributes(struct nfnetlink_subsystem *subsys,
return -EINVAL;
}
min_len = NLMSG_ALIGN(sizeof(struct nfgenmsg));
min_len = NLMSG_SPACE(sizeof(struct nfgenmsg));
if (unlikely(nlh->nlmsg_len < min_len))
return -EINVAL;
@ -236,8 +236,7 @@ static inline int nfnetlink_rcv_msg(struct sk_buff *skb,
}
/* All the messages must at least contain nfgenmsg */
if (nlh->nlmsg_len <
NLMSG_LENGTH(NLMSG_ALIGN(sizeof(struct nfgenmsg)))) {
if (nlh->nlmsg_len < NLMSG_SPACE(sizeof(struct nfgenmsg))) {
DEBUGP("received message was too short\n");
return 0;
}

115
net/packet/af_packet.c
View file

@ -1587,23 +1587,47 @@ static inline struct page *pg_vec_endpage(char *one_pg_vec, unsigned int order)
return virt_to_page(one_pg_vec + (PAGE_SIZE << order) - 1);
}
static void free_pg_vec(char **pg_vec, unsigned order, unsigned len)
static void free_pg_vec(char **pg_vec, unsigned int order, unsigned int len)
{
int i;
for (i=0; i<len; i++) {
if (pg_vec[i]) {
struct page *page, *pend;
pend = pg_vec_endpage(pg_vec[i], order);
for (page = virt_to_page(pg_vec[i]); page <= pend; page++)
ClearPageReserved(page);
free_pages((unsigned long)pg_vec[i], order);
}
for (i = 0; i < len; i++) {
if (likely(pg_vec[i]))
free_pages((unsigned long) pg_vec[i], order);
}
kfree(pg_vec);
}
static inline char *alloc_one_pg_vec_page(unsigned long order)
{
return (char *) __get_free_pages(GFP_KERNEL | __GFP_COMP | __GFP_ZERO,
order);
}
static char **alloc_pg_vec(struct tpacket_req *req, int order)
{
unsigned int block_nr = req->tp_block_nr;
char **pg_vec;
int i;
pg_vec = kzalloc(block_nr * sizeof(char *), GFP_KERNEL);
if (unlikely(!pg_vec))
goto out;
for (i = 0; i < block_nr; i++) {
pg_vec[i] = alloc_one_pg_vec_page(order);
if (unlikely(!pg_vec[i]))
goto out_free_pgvec;
}
out:
return pg_vec;
out_free_pgvec:
free_pg_vec(pg_vec, order, block_nr);
pg_vec = NULL;
goto out;
}
static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing)
{
@ -1617,64 +1641,46 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing
/* Sanity tests and some calculations */
if (po->pg_vec)
if (unlikely(po->pg_vec))
return -EBUSY;
if ((int)req->tp_block_size <= 0)
if (unlikely((int)req->tp_block_size <= 0))
return -EINVAL;
if (req->tp_block_size&(PAGE_SIZE-1))
if (unlikely(req->tp_block_size & (PAGE_SIZE - 1)))
return -EINVAL;
if (req->tp_frame_size < TPACKET_HDRLEN)
if (unlikely(req->tp_frame_size < TPACKET_HDRLEN))
return -EINVAL;
if (req->tp_frame_size&(TPACKET_ALIGNMENT-1))
if (unlikely(req->tp_frame_size & (TPACKET_ALIGNMENT - 1)))
return -EINVAL;
po->frames_per_block = req->tp_block_size/req->tp_frame_size;
if (po->frames_per_block <= 0)
if (unlikely(po->frames_per_block <= 0))
return -EINVAL;
if (po->frames_per_block*req->tp_block_nr != req->tp_frame_nr)
if (unlikely((po->frames_per_block * req->tp_block_nr) !=
req->tp_frame_nr))
return -EINVAL;
/* OK! */
/* Allocate page vector */
while ((PAGE_SIZE<<order) < req->tp_block_size)
order++;
err = -ENOMEM;
pg_vec = kmalloc(req->tp_block_nr*sizeof(char *), GFP_KERNEL);
if (pg_vec == NULL)
order = get_order(req->tp_block_size);
pg_vec = alloc_pg_vec(req, order);
if (unlikely(!pg_vec))
goto out;
memset(pg_vec, 0, req->tp_block_nr*sizeof(char **));
for (i=0; i<req->tp_block_nr; i++) {
struct page *page, *pend;
pg_vec[i] = (char *)__get_free_pages(GFP_KERNEL, order);
if (!pg_vec[i])
goto out_free_pgvec;
pend = pg_vec_endpage(pg_vec[i], order);
for (page = virt_to_page(pg_vec[i]); page <= pend; page++)
SetPageReserved(page);
}
/* Page vector is allocated */
l = 0;
for (i=0; i<req->tp_block_nr; i++) {
for (i = 0; i < req->tp_block_nr; i++) {
char *ptr = pg_vec[i];
struct tpacket_hdr *header;
int k;
for (k=0; k<po->frames_per_block; k++) {
header = (struct tpacket_hdr*)ptr;
for (k = 0; k < po->frames_per_block; k++) {
header = (struct tpacket_hdr *) ptr;
header->tp_status = TP_STATUS_KERNEL;
ptr += req->tp_frame_size;
}
}
/* Done */
} else {
if (req->tp_frame_nr)
if (unlikely(req->tp_frame_nr))
return -EINVAL;
}
@ -1701,7 +1707,7 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing
spin_lock_bh(&sk->sk_receive_queue.lock);
pg_vec = XC(po->pg_vec, pg_vec);
po->frame_max = req->tp_frame_nr-1;
po->frame_max = (req->tp_frame_nr - 1);
po->head = 0;
po->frame_size = req->tp_frame_size;
spin_unlock_bh(&sk->sk_receive_queue.lock);
@ -1728,7 +1734,6 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing
release_sock(sk);
out_free_pgvec:
if (pg_vec)
free_pg_vec(pg_vec, order, req->tp_block_nr);
out:
@ -1755,17 +1760,19 @@ static int packet_mmap(struct file *file, struct socket *sock, struct vm_area_st
if (size != po->pg_vec_len*po->pg_vec_pages*PAGE_SIZE)
goto out;
atomic_inc(&po->mapped);
start = vma->vm_start;
err = -EAGAIN;
for (i=0; i<po->pg_vec_len; i++) {
if (remap_pfn_range(vma, start,
__pa(po->pg_vec[i]) >> PAGE_SHIFT,
po->pg_vec_pages*PAGE_SIZE,
vma->vm_page_prot))
goto out;
start += po->pg_vec_pages*PAGE_SIZE;
for (i = 0; i < po->pg_vec_len; i++) {
struct page *page = virt_to_page(po->pg_vec[i]);
int pg_num;
for (pg_num = 0; pg_num < po->pg_vec_pages; pg_num++, page++) {
err = vm_insert_page(vma, start, page);
if (unlikely(err))
goto out;
start += PAGE_SIZE;
}
}
atomic_inc(&po->mapped);
vma->vm_ops = &packet_mmap_ops;
err = 0;