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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-04-30 08:14:42 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-04-30 08:14:42 -0700
commit152a6a9da1bd3ed5dcbbf6ff17c7ebde0eb9a754 (patch)
treecad354802870b7d4bc0402a6a6da44bd1f610bc6
parentMerge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block (diff)
parent[IPV4] SNMP: Support OutMcastPkts and OutBcastPkts (diff)
downloadlinux-dev-152a6a9da1bd3ed5dcbbf6ff17c7ebde0eb9a754.tar.xz
linux-dev-152a6a9da1bd3ed5dcbbf6ff17c7ebde0eb9a754.zip
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits) [IPV4] SNMP: Support OutMcastPkts and OutBcastPkts [IPV4] SNMP: Support InMcastPkts and InBcastPkts [IPV4] SNMP: Support InTruncatedPkts [IPV4] SNMP: Support InNoRoutes [SNMP]: Add definitions for {In,Out}BcastPkts [TCP] FRTO: RFC4138 allows Nagle override when new data must be sent [TCP] FRTO: Delay skb available check until it's mandatory [XFRM]: Restrict upper layer information by bundle. [TCP]: Catch skb with S+L bugs earlier [PATCH] INET : IPV4 UDP lookups converted to a 2 pass algo [L2TP]: Add the ability to autoload a pppox protocol module. [SKB]: Introduce skb_queue_walk_safe() [AF_IUCV/IUCV]: smp_call_function deadlock [IPV6]: Fix slab corruption running ip6sic [TCP]: Update references in two old comments [XFRM]: Export SPD info [IPV6]: Track device renames in snmp6. [SCTP]: Fix sctp_getsockopt_local_addrs_old() to use local storage. [NET]: Remove NETIF_F_INTERNAL_STATS, default to internal stats. [NETPOLL]: Remove CONFIG_NETPOLL_RX ...
-rw-r--r--arch/s390/appldata/appldata_net_sum.c3
-rw-r--r--drivers/net/Kconfig5
-rw-r--r--drivers/net/bonding/bond_main.c59
-rw-r--r--drivers/net/pppox.c8
-rw-r--r--drivers/parisc/led.c2
-rw-r--r--include/linux/netdevice.h9
-rw-r--r--include/linux/skbuff.h5
-rw-r--r--include/linux/snmp.h2
-rw-r--r--include/linux/xfrm.h35
-rw-r--r--include/net/flow.h6
-rw-r--r--include/net/iucv/iucv.h2
-rw-r--r--include/net/tcp.h9
-rw-r--r--include/net/xfrm.h23
-rw-r--r--net/core/dev.c45
-rw-r--r--net/ipv4/ip_input.c14
-rw-r--r--net/ipv4/ip_output.c6
-rw-r--r--net/ipv4/tcp.c14
-rw-r--r--net/ipv4/tcp_input.c30
-rw-r--r--net/ipv4/tcp_output.c8
-rw-r--r--net/ipv4/udp.c171
-rw-r--r--net/ipv6/addrconf.c6
-rw-r--r--net/ipv6/proc.c1
-rw-r--r--net/ipv6/xfrm6_tunnel.c2
-rw-r--r--net/iucv/iucv.c205
-rw-r--r--net/sctp/socket.c96
-rw-r--r--net/xfrm/xfrm_policy.c71
-rw-r--r--net/xfrm/xfrm_user.c77
27 files changed, 641 insertions, 273 deletions
diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c
index 516b3ac9a9b5..a43f3488fecf 100644
--- a/arch/s390/appldata/appldata_net_sum.c
+++ b/arch/s390/appldata/appldata_net_sum.c
@@ -109,9 +109,6 @@ static void appldata_get_net_sum_data(void *data)
read_lock(&dev_base_lock);
for (dev = dev_base; dev != NULL; dev = dev->next) {
stats = dev->get_stats(dev);
- if (stats == NULL) {
- continue;
- }
rx_packets += stats->rx_packets;
tx_packets += stats->tx_packets;
rx_bytes += stats->rx_bytes;
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index eb4b96c4d388..dcdad217df51 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2927,11 +2927,6 @@ endif #NETDEVICES
config NETPOLL
def_bool NETCONSOLE
-config NETPOLL_RX
- bool "Netpoll support for trapping incoming packets"
- default n
- depends on NETPOLL
-
config NETPOLL_TRAP
bool "Netpoll traffic trapping"
default n
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index cea3783c92c5..724bce51f936 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1360,13 +1360,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
goto err_undo_flags;
}
- if (slave_dev->get_stats == NULL) {
- printk(KERN_NOTICE DRV_NAME
- ": %s: the driver for slave device %s does not provide "
- "get_stats function, network statistics will be "
- "inaccurate.\n", bond_dev->name, slave_dev->name);
- }
-
new_slave = kzalloc(sizeof(struct slave), GFP_KERNEL);
if (!new_slave) {
res = -ENOMEM;
@@ -3641,33 +3634,31 @@ static struct net_device_stats *bond_get_stats(struct net_device *bond_dev)
bond_for_each_slave(bond, slave, i) {
sstats = slave->dev->get_stats(slave->dev);
- if (sstats) {
- stats->rx_packets += sstats->rx_packets;
- stats->rx_bytes += sstats->rx_bytes;
- stats->rx_errors += sstats->rx_errors;
- stats->rx_dropped += sstats->rx_dropped;
-
- stats->tx_packets += sstats->tx_packets;
- stats->tx_bytes += sstats->tx_bytes;
- stats->tx_errors += sstats->tx_errors;
- stats->tx_dropped += sstats->tx_dropped;
-
- stats->multicast += sstats->multicast;
- stats->collisions += sstats->collisions;
-
- stats->rx_length_errors += sstats->rx_length_errors;
- stats->rx_over_errors += sstats->rx_over_errors;
- stats->rx_crc_errors += sstats->rx_crc_errors;
- stats->rx_frame_errors += sstats->rx_frame_errors;
- stats->rx_fifo_errors += sstats->rx_fifo_errors;
- stats->rx_missed_errors += sstats->rx_missed_errors;
-
- stats->tx_aborted_errors += sstats->tx_aborted_errors;
- stats->tx_carrier_errors += sstats->tx_carrier_errors;
- stats->tx_fifo_errors += sstats->tx_fifo_errors;
- stats->tx_heartbeat_errors += sstats->tx_heartbeat_errors;
- stats->tx_window_errors += sstats->tx_window_errors;
- }
+ stats->rx_packets += sstats->rx_packets;
+ stats->rx_bytes += sstats->rx_bytes;
+ stats->rx_errors += sstats->rx_errors;
+ stats->rx_dropped += sstats->rx_dropped;
+
+ stats->tx_packets += sstats->tx_packets;
+ stats->tx_bytes += sstats->tx_bytes;
+ stats->tx_errors += sstats->tx_errors;
+ stats->tx_dropped += sstats->tx_dropped;
+
+ stats->multicast += sstats->multicast;
+ stats->collisions += sstats->collisions;
+
+ stats->rx_length_errors += sstats->rx_length_errors;
+ stats->rx_over_errors += sstats->rx_over_errors;
+ stats->rx_crc_errors += sstats->rx_crc_errors;
+ stats->rx_frame_errors += sstats->rx_frame_errors;
+ stats->rx_fifo_errors += sstats->rx_fifo_errors;
+ stats->rx_missed_errors += sstats->rx_missed_errors;
+
+ stats->tx_aborted_errors += sstats->tx_aborted_errors;
+ stats->tx_carrier_errors += sstats->tx_carrier_errors;
+ stats->tx_fifo_errors += sstats->tx_fifo_errors;
+ stats->tx_heartbeat_errors += sstats->tx_heartbeat_errors;
+ stats->tx_window_errors += sstats->tx_window_errors;
}
read_unlock_bh(&bond->lock);
diff --git a/drivers/net/pppox.c b/drivers/net/pppox.c
index 3f8115db4d54..f3e47d0c2b3c 100644
--- a/drivers/net/pppox.c
+++ b/drivers/net/pppox.c
@@ -31,6 +31,7 @@
#include <linux/ppp_defs.h>
#include <linux/if_ppp.h>
#include <linux/ppp_channel.h>
+#include <linux/kmod.h>
#include <net/sock.h>
@@ -114,6 +115,13 @@ static int pppox_create(struct socket *sock, int protocol)
goto out;
rc = -EPROTONOSUPPORT;
+#ifdef CONFIG_KMOD
+ if (!pppox_protos[protocol]) {
+ char buffer[32];
+ sprintf(buffer, "pppox-proto-%d", protocol);
+ request_module(buffer);
+ }
+#endif
if (!pppox_protos[protocol] ||
!try_module_get(pppox_protos[protocol]->owner))
goto out;
diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index 453e6829756c..3df82fe9ce8c 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -373,8 +373,6 @@ static __inline__ int led_get_net_activity(void)
if (LOOPBACK(in_dev->ifa_list->ifa_local))
continue;
stats = dev->get_stats(dev);
- if (!stats)
- continue;
rx_total += stats->rx_packets;
tx_total += stats->tx_packets;
}
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index e027a3750a77..ac0c92b1e002 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -325,7 +325,6 @@ struct net_device
#define NETIF_F_VLAN_CHALLENGED 1024 /* Device cannot handle VLAN packets */
#define NETIF_F_GSO 2048 /* Enable software GSO. */
#define NETIF_F_LLTX 4096 /* LockLess TX */
-#define NETIF_F_INTERNAL_STATS 8192 /* Use stats structure in net_device */
/* Segmentation offload features */
#define NETIF_F_GSO_SHIFT 16
@@ -654,8 +653,10 @@ static inline void netif_start_queue(struct net_device *dev)
static inline void netif_wake_queue(struct net_device *dev)
{
#ifdef CONFIG_NETPOLL_TRAP
- if (netpoll_trap())
+ if (netpoll_trap()) {
+ clear_bit(__LINK_STATE_XOFF, &dev->state);
return;
+ }
#endif
if (test_and_clear_bit(__LINK_STATE_XOFF, &dev->state))
__netif_schedule(dev);
@@ -663,10 +664,6 @@ static inline void netif_wake_queue(struct net_device *dev)
static inline void netif_stop_queue(struct net_device *dev)
{
-#ifdef CONFIG_NETPOLL_TRAP
- if (netpoll_trap())
- return;
-#endif
set_bit(__LINK_STATE_XOFF, &dev->state);
}
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 2694cb3ca763..253a2b9be9d6 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1471,6 +1471,11 @@ static inline int pskb_trim_rcsum(struct sk_buff *skb, unsigned int len)
prefetch(skb->next), (skb != (struct sk_buff *)(queue)); \
skb = skb->next)
+#define skb_queue_walk_safe(queue, skb, tmp) \
+ for (skb = (queue)->next, tmp = skb->next; \
+ skb != (struct sk_buff *)(queue); \
+ skb = tmp, tmp = skb->next)
+
#define skb_queue_reverse_walk(queue, skb) \
for (skb = (queue)->prev; \
prefetch(skb->prev), (skb != (struct sk_buff *)(queue)); \
diff --git a/include/linux/snmp.h b/include/linux/snmp.h
index 854aa6b543f1..802b3a38b041 100644
--- a/include/linux/snmp.h
+++ b/include/linux/snmp.h
@@ -40,6 +40,8 @@ enum
IPSTATS_MIB_FRAGCREATES, /* FragCreates */
IPSTATS_MIB_INMCASTPKTS, /* InMcastPkts */
IPSTATS_MIB_OUTMCASTPKTS, /* OutMcastPkts */
+ IPSTATS_MIB_INBCASTPKTS, /* InBcastPkts */
+ IPSTATS_MIB_OUTBCASTPKTS, /* OutBcastPkts */
__IPSTATS_MIB_MAX
};
diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h
index 9c656a5cf842..a5d53e0fe152 100644
--- a/include/linux/xfrm.h
+++ b/include/linux/xfrm.h
@@ -185,6 +185,11 @@ enum {
#define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
XFRM_MSG_GETSADINFO,
#define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
+
+ XFRM_MSG_NEWSPDINFO,
+#define XFRM_MSG_NEWSPDINFO XFRM_MSG_NEWSPDINFO
+ XFRM_MSG_GETSPDINFO,
+#define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO
__XFRM_MSG_MAX
};
#define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
@@ -290,6 +295,36 @@ enum xfrm_sadattr_type_t {
#define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
};
+/* SPD Table filter flags */
+enum xfrm_spd_ftype_t {
+ XFRM_SPD_UNSPEC,
+ XFRM_SPD_HMASK=1,
+ XFRM_SPD_HMAX=2,
+ XFRM_SPD_ICNT=4,
+ XFRM_SPD_OCNT=8,
+ XFRM_SPD_FCNT=16,
+ XFRM_SPD_ISCNT=32,
+ XFRM_SPD_OSCNT=64,
+ XFRM_SPD_FSCNT=128,
+ __XFRM_SPD_MAX
+
+#define XFRM_SPD_MAX (__XFRM_SPD_MAX - 1)
+};
+enum xfrm_spdattr_type_t {
+ XFRMA_SPD_UNSPEC,
+ XFRMA_SPDHMASK,
+ XFRMA_SPDHMAX,
+ XFRMA_SPDICNT,
+ XFRMA_SPDOCNT,
+ XFRMA_SPDFCNT,
+ XFRMA_SPDISCNT,
+ XFRMA_SPDOSCNT,
+ XFRMA_SPDFSCNT,
+ __XFRMA_SPD_MAX
+
+#define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
+};
+
struct xfrm_usersa_info {
struct xfrm_selector sel;
struct xfrm_id id;
diff --git a/include/net/flow.h b/include/net/flow.h
index ce4b10d8b412..f3cc1f812619 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -97,4 +97,10 @@ extern void *flow_cache_lookup(struct flowi *key, u16 family, u8 dir,
extern void flow_cache_flush(void);
extern atomic_t flow_cache_genid;
+static inline int flow_cache_uli_match(struct flowi *fl1, struct flowi *fl2)
+{
+ return (fl1->proto == fl2->proto &&
+ !memcmp(&fl1->uli_u, &fl2->uli_u, sizeof(fl1->uli_u)));
+}
+
#endif
diff --git a/include/net/iucv/iucv.h b/include/net/iucv/iucv.h
index 746e7416261e..fd70adbb3566 100644
--- a/include/net/iucv/iucv.h
+++ b/include/net/iucv/iucv.h
@@ -16,7 +16,7 @@
* completed a register, it can exploit the other functions.
* For furthur reference on all IUCV functionality, refer to the
* CP Programming Services book, also available on the web thru
- * www.ibm.com/s390/vm/pubs, manual # SC24-5760
+ * www.vm.ibm.com/pubs, manual # SC24-6084
*
* Definition of Return Codes
* - All positive return codes including zero are reflected back
diff --git a/include/net/tcp.h b/include/net/tcp.h
index a385797f160a..ef8f9d4dae85 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -736,9 +736,7 @@ static inline __u32 tcp_current_ssthresh(const struct sock *sk)
static inline void tcp_sync_left_out(struct tcp_sock *tp)
{
- if (tp->rx_opt.sack_ok &&
- (tp->sacked_out >= tp->packets_out - tp->lost_out))
- tp->sacked_out = tp->packets_out - tp->lost_out;
+ BUG_ON(tp->sacked_out + tp->lost_out > tp->packets_out);
tp->left_out = tp->sacked_out + tp->lost_out;
}
@@ -1201,9 +1199,14 @@ static inline struct sk_buff *tcp_send_head(struct sock *sk)
static inline void tcp_advance_send_head(struct sock *sk, struct sk_buff *skb)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
sk->sk_send_head = skb->next;
if (sk->sk_send_head == (struct sk_buff *)&sk->sk_write_queue)
sk->sk_send_head = NULL;
+ /* Don't override Nagle indefinately with F-RTO */
+ if (tp->frto_counter == 2)
+ tp->frto_counter = 3;
}
static inline void tcp_check_send_head(struct sock *sk, struct sk_buff *skb_unlinked)
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 8287081d77f2..66c2d3eec03c 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -423,6 +423,18 @@ struct xfrm_sadinfo
u32 sadhmcnt; /* max allowed hash bkts */
u32 sadcnt; /* current running count */
};
+
+struct xfrm_spdinfo
+{
+ u32 incnt;
+ u32 outcnt;
+ u32 fwdcnt;
+ u32 inscnt;
+ u32 outscnt;
+ u32 fwdscnt;
+ u32 spdhcnt;
+ u32 spdhmcnt;
+};
#ifdef CONFIG_AUDITSYSCALL
extern void xfrm_audit_log(uid_t auid, u32 secid, int type, int result,
struct xfrm_policy *xp, struct xfrm_state *x);
@@ -591,6 +603,10 @@ struct xfrm_dst
struct rt6_info rt6;
} u;
struct dst_entry *route;
+#ifdef CONFIG_XFRM_SUB_POLICY
+ struct flowi *origin;
+ struct xfrm_selector *partner;
+#endif
u32 genid;
u32 route_mtu_cached;
u32 child_mtu_cached;
@@ -603,6 +619,12 @@ static inline void xfrm_dst_destroy(struct xfrm_dst *xdst)
dst_release(xdst->route);
if (likely(xdst->u.dst.xfrm))
xfrm_state_put(xdst->u.dst.xfrm);
+#ifdef CONFIG_XFRM_SUB_POLICY
+ kfree(xdst->origin);
+ xdst->origin = NULL;
+ kfree(xdst->partner);
+ xdst->partner = NULL;
+#endif
}
extern void xfrm_dst_ifdown(struct dst_entry *dst, struct net_device *dev);
@@ -946,6 +968,7 @@ extern struct xfrm_state *xfrm_find_acq_byseq(u32 seq);
extern int xfrm_state_delete(struct xfrm_state *x);
extern void xfrm_state_flush(u8 proto, struct xfrm_audit *audit_info);
extern void xfrm_sad_getinfo(struct xfrm_sadinfo *si);
+extern void xfrm_spd_getinfo(struct xfrm_spdinfo *si);
extern int xfrm_replay_check(struct xfrm_state *x, __be32 seq);
extern void xfrm_replay_advance(struct xfrm_state *x, __be32 seq);
extern void xfrm_replay_notify(struct xfrm_state *x, int event);
diff --git a/net/core/dev.c b/net/core/dev.c
index d5e42d13bd67..eb999003bbb7 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2101,26 +2101,23 @@ static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev)
{
struct net_device_stats *stats = dev->get_stats(dev);
- if (stats) {
- seq_printf(seq, "%6s:%8lu %7lu %4lu %4lu %4lu %5lu %10lu %9lu "
- "%8lu %7lu %4lu %4lu %4lu %5lu %7lu %10lu\n",
- dev->name, stats->rx_bytes, stats->rx_packets,
- stats->rx_errors,
- stats->rx_dropped + stats->rx_missed_errors,
- stats->rx_fifo_errors,
- stats->rx_length_errors + stats->rx_over_errors +
- stats->rx_crc_errors + stats->rx_frame_errors,
- stats->rx_compressed, stats->multicast,
- stats->tx_bytes, stats->tx_packets,
- stats->tx_errors, stats->tx_dropped,
- stats->tx_fifo_errors, stats->collisions,
- stats->tx_carrier_errors +
- stats->tx_aborted_errors +
- stats->tx_window_errors +
- stats->tx_heartbeat_errors,
- stats->tx_compressed);
- } else
- seq_printf(seq, "%6s: No statistics available.\n", dev->name);
+ seq_printf(seq, "%6s:%8lu %7lu %4lu %4lu %4lu %5lu %10lu %9lu "
+ "%8lu %7lu %4lu %4lu %4lu %5lu %7lu %10lu\n",
+ dev->name, stats->rx_bytes, stats->rx_packets,
+ stats->rx_errors,
+ stats->rx_dropped + stats->rx_missed_errors,
+ stats->rx_fifo_errors,
+ stats->rx_length_errors + stats->rx_over_errors +
+ stats->rx_crc_errors + stats->rx_frame_errors,
+ stats->rx_compressed, stats->multicast,
+ stats->tx_bytes, stats->tx_packets,
+ stats->tx_errors, stats->tx_dropped,
+ stats->tx_fifo_errors, stats->collisions,
+ stats->tx_carrier_errors +
+ stats->tx_aborted_errors +
+ stats->tx_window_errors +
+ stats->tx_heartbeat_errors,
+ stats->tx_compressed);
}
/*
@@ -3257,11 +3254,9 @@ out:
mutex_unlock(&net_todo_run_mutex);
}
-static struct net_device_stats *maybe_internal_stats(struct net_device *dev)
+static struct net_device_stats *internal_stats(struct net_device *dev)
{
- if (dev->features & NETIF_F_INTERNAL_STATS)
- return &dev->stats;
- return NULL;
+ return &dev->stats;
}
/**
@@ -3299,7 +3294,7 @@ struct net_device *alloc_netdev(int sizeof_priv, const char *name,
if (sizeof_priv)
dev->priv = netdev_priv(dev);
- dev->get_stats = maybe_internal_stats;
+ dev->get_stats = internal_stats;
setup(dev);
strcpy(dev->name, name);
return dev;
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 324e7e0fdb2a..97069399d864 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -329,6 +329,7 @@ drop:
static inline int ip_rcv_finish(struct sk_buff *skb)
{
const struct iphdr *iph = ip_hdr(skb);
+ struct rtable *rt;
/*
* Initialise the virtual path cache for the packet. It describes
@@ -340,6 +341,8 @@ static inline int ip_rcv_finish(struct sk_buff *skb)
if (unlikely(err)) {
if (err == -EHOSTUNREACH)
IP_INC_STATS_BH(IPSTATS_MIB_INADDRERRORS);
+ else if (err == -ENETUNREACH)
+ IP_INC_STATS_BH(IPSTATS_MIB_INNOROUTES);
goto drop;
}
}
@@ -358,6 +361,12 @@ static inline int ip_rcv_finish(struct sk_buff *skb)
if (iph->ihl > 5 && ip_rcv_options(skb))
goto drop;
+ rt = (struct rtable*)skb->dst;
+ if (rt->rt_type == RTN_MULTICAST)
+ IP_INC_STATS_BH(IPSTATS_MIB_INMCASTPKTS);
+ else if (rt->rt_type == RTN_BROADCAST)
+ IP_INC_STATS_BH(IPSTATS_MIB_INBCASTPKTS);
+
return dst_input(skb);
drop:
@@ -414,7 +423,10 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
goto inhdr_error;
len = ntohs(iph->tot_len);
- if (skb->len < len || len < (iph->ihl*4))
+ if (skb->len < len) {
+ IP_INC_STATS_BH(IPSTATS_MIB_INTRUNCATEDPKTS);
+ goto drop;
+ } else if (len < (iph->ihl*4))
goto inhdr_error;
/* Our transport medium may have padded the buffer out. Now we know it
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 534650cad3a8..d6427d918512 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -160,9 +160,15 @@ EXPORT_SYMBOL_GPL(ip_build_and_send_pkt);
static inline int ip_finish_output2(struct sk_buff *skb)
{
struct dst_entry *dst = skb->dst;
+ struct rtable *rt = (struct rtable *)dst;
struct net_device *dev = dst->dev;
int hh_len = LL_RESERVED_SPACE(dev);
+ if (rt->rt_type == RTN_MULTICAST)
+ IP_INC_STATS(IPSTATS_MIB_OUTMCASTPKTS);
+ else if (rt->rt_type == RTN_BROADCAST)
+ IP_INC_STATS(IPSTATS_MIB_OUTBCASTPKTS);
+
/* Be paranoid, rather than too clever. */
if (unlikely(skb_headroom(skb) < hh_len && dev->hard_header)) {
struct sk_buff *skb2;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 2cf9a898ce50..d6e488668171 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1573,14 +1573,12 @@ void tcp_close(struct sock *sk, long timeout)
sk_stream_mem_reclaim(sk);
- /* As outlined in draft-ietf-tcpimpl-prob-03.txt, section
- * 3.10, we send a RST here because data was lost. To
- * witness the awful effects of the old behavior of always
- * doing a FIN, run an older 2.1.x kernel or 2.0.x, start
- * a bulk GET in an FTP client, suspend the process, wait
- * for the client to advertise a zero window, then kill -9
- * the FTP client, wheee... Note: timeout is always zero
- * in such a case.
+ /* As outlined in RFC 2525, section 2.17, we send a RST here because
+ * data was lost. To witness the awful effects of the old behavior of
+ * always doing a FIN, run an older 2.1.x kernel or 2.0.x, start a bulk
+ * GET in an FTP client, suspend the process, wait for the client to
+ * advertise a zero window, then kill -9 the FTP client, wheee...
+ * Note: timeout is always zero in such a case.
*/
if (data_was_unread) {
/* Unread data was tossed, zap the connection. */
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 051f0f815f17..7641b2761a14 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1265,20 +1265,15 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
return flag;
}
-/* F-RTO can only be used if these conditions are satisfied:
- * - there must be some unsent new data
- * - the advertised window should allow sending it
- * - TCP has never retransmitted anything other than head (SACK enhanced
- * variant from Appendix B of RFC4138 is more robust here)
+/* F-RTO can only be used if TCP has never retransmitted anything other than
+ * head (SACK enhanced variant from Appendix B of RFC4138 is more robust here)
*/
int tcp_use_frto(struct sock *sk)
{
const struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *skb;
- if (!sysctl_tcp_frto || !tcp_send_head(sk) ||
- after(TCP_SKB_CB(tcp_send_head(sk))->end_seq,
- tp->snd_una + tp->snd_wnd))
+ if (!sysctl_tcp_frto)
return 0;
if (IsSackFrto())
@@ -2642,7 +2637,9 @@ static void tcp_undo_spur_to_response(struct sock *sk, int flag)
* algorithm is not part of the F-RTO detection algorithm
* given in RFC4138 but can be selected separately).
* Otherwise (basically on duplicate ACK), RTO was (likely) caused by a loss
- * and TCP falls back to conventional RTO recovery.
+ * and TCP falls back to conventional RTO recovery. F-RTO allows overriding
+ * of Nagle, this is done using frto_counter states 2 and 3, when a new data
+ * segment of any size sent during F-RTO, state 2 is upgraded to 3.
*
* Rationale: if the RTO was spurious, new ACKs should arrive from the
* original window even after we transmit two new data segments.
@@ -2671,7 +2668,7 @@ static int tcp_process_frto(struct sock *sk, u32 prior_snd_una, int flag)
inet_csk(sk)->icsk_retransmits = 0;
if (!before(tp->snd_una, tp->frto_highmark)) {
- tcp_enter_frto_loss(sk, tp->frto_counter + 1, flag);
+ tcp_enter_frto_loss(sk, (tp->frto_counter == 1 ? 2 : 3), flag);
return 1;
}
@@ -2697,7 +2694,7 @@ static int tcp_process_frto(struct sock *sk, u32 prior_snd_una, int flag)
return 1;
}
- if ((tp->frto_counter == 2) &&
+ if ((tp->frto_counter >= 2) &&
(!(flag&FLAG_FORWARD_PROGRESS) ||
((flag&FLAG_DATA_SACKED) && !(flag&FLAG_ONLY_ORIG_SACKED)))) {
/* RFC4138 shortcoming (see comment above) */
@@ -2710,10 +2707,19 @@ static int tcp_process_frto(struct sock *sk, u32 prior_snd_una, int flag)
}
if (tp->frto_counter == 1) {
+ /* Sending of the next skb must be allowed or no FRTO */
+ if (!tcp_send_head(sk) ||
+ after(TCP_SKB_CB(tcp_send_head(sk))->end_seq,
+ tp->snd_una + tp->snd_wnd)) {
+ tcp_enter_frto_loss(sk, (tp->frto_counter == 1 ? 2 : 3),
+ flag);
+ return 1;
+ }
+
tp->snd_cwnd = tcp_packets_in_flight(tp) + 2;
tp->frto_counter = 2;
return 1;
- } else /* frto_counter == 2 */ {
+ } else {
switch (sysctl_tcp_frto_response) {
case 2:
tcp_undo_spur_to_response(sk, flag);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index e70a6840cb64..0faacf9c419d 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1035,8 +1035,10 @@ static inline int tcp_nagle_test(struct tcp_sock *tp, struct sk_buff *skb,
if (nonagle & TCP_NAGLE_PUSH)
return 1;
- /* Don't use the nagle rule for urgent data (or for the final FIN). */
- if (tp->urg_mode ||
+ /* Don't use the nagle rule for urgent data (or for the final FIN).
+ * Nagle can be ignored during F-RTO too (see RFC4138).
+ */
+ if (tp->urg_mode || (tp->frto_counter == 2) ||
(TCP_SKB_CB(skb)->flags & TCPCB_FLAG_FIN))
return 1;
@@ -2035,7 +2037,7 @@ void tcp_send_fin(struct sock *sk)
/* We get here when a process closes a file descriptor (either due to
* an explicit close() or as a byproduct of exit()'ing) and there
* was unread data in the receive queue. This behavior is recommended
- * by draft-ietf-tcpimpl-prob-03.txt section 3.10. -DaveM
+ * by RFC 2525, section 2.17. -DaveM
*/
void tcp_send_active_reset(struct sock *sk, gfp_t priority)
{
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index cec0f2cc49b7..144970704c2c 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -114,14 +114,33 @@ DEFINE_RWLOCK(udp_hash_lock);
static int udp_port_rover;
-static inline int __udp_lib_lport_inuse(__u16 num, struct hlist_head udptable[])
+/*
+ * Note about this hash function :
+ * Typical use is probably daddr = 0, only dport is going to vary hash
+ */
+static inline unsigned int hash_port_and_addr(__u16 port, __be32 addr)
+{
+ addr ^= addr >> 16;
+ addr ^= addr >> 8;
+ return port ^ addr;
+}
+
+static inline int __udp_lib_port_inuse(unsigned int hash, int port,
+ __be32 daddr, struct hlist_head udptable[])
{
struct sock *sk;
struct hlist_node *node;
+ struct inet_sock *inet;
- sk_for_each(sk, node, &udptable[num & (UDP_HTABLE_SIZE - 1)])
- if (sk->sk_hash == num)
+ sk_for_each(sk, node, &udptable[hash & (UDP_HTABLE_SIZE - 1)]) {
+ if (sk->sk_hash != hash)
+ continue;
+ inet = inet_sk(sk);
+ if (inet->num != port)
+ continue;
+ if (inet->rcv_saddr == daddr)
return 1;
+ }
return 0;
}
@@ -142,6 +161,7 @@ int __udp_lib_get_port(struct sock *sk, unsigned short snum,
struct hlist_node *node;
struct hlist_head *head;
struct sock *sk2;
+ unsigned int hash;
int error = 1;
write_lock_bh(&udp_hash_lock);
@@ -156,7 +176,9 @@ int __udp_lib_get_port(struct sock *sk, unsigned short snum,
for (i = 0; i < UDP_HTABLE_SIZE; i++, result++) {
int size;
- head = &udptable[result & (UDP_HTABLE_SIZE - 1)];
+ hash = hash_port_and_addr(result,
+ inet_sk(sk)->rcv_saddr);
+ head = &udptable[hash & (UDP_HTABLE_SIZE - 1)];
if (hlist_empty(head)) {
if (result > sysctl_local_port_range[1])
result = sysctl_local_port_range[0] +
@@ -181,7 +203,10 @@ int __udp_lib_get_port(struct sock *sk, unsigned short snum,
result = sysctl_local_port_range[0]
+ ((result - sysctl_local_port_range[0]) &
(UDP_HTABLE_SIZE - 1));
- if (! __udp_lib_lport_inuse(result, udptable))
+ hash = hash_port_and_addr(result,
+ inet_sk(sk)->rcv_saddr);
+ if (! __udp_lib_port_inuse(hash, result,
+ inet_sk(sk)->rcv_saddr, udptable))
break;
}
if (i >= (1 << 16) / UDP_HTABLE_SIZE)
@@ -189,11 +214,13 @@ int __udp_lib_get_port(struct sock *sk, unsigned short snum,
gotit:
*port_rover = snum = result;
} else {
- head = &udptable[snum & (UDP_HTABLE_SIZE - 1)];
+ hash = hash_port_and_addr(snum, inet_sk(sk)->rcv_saddr);
+ head = &udptable[hash & (UDP_HTABLE_SIZE - 1)];
sk_for_each(sk2, node, head)
- if (sk2->sk_hash == snum &&
+ if (sk2->sk_hash == hash &&
sk2 != sk &&
+ inet_sk(sk2)->num == snum &&
(!sk2->sk_reuse || !sk->sk_reuse) &&
(!sk2->sk_bound_dev_if || !sk->sk_bound_dev_if
|| sk2->sk_bound_dev_if == sk->sk_bound_dev_if) &&
@@ -201,9 +228,9 @@ gotit:
goto fail;
}
inet_sk(sk)->num = snum;
- sk->sk_hash = snum;
+ sk->sk_hash = hash;
if (sk_unhashed(sk)) {
- head = &udptable[snum & (UDP_HTABLE_SIZE - 1)];
+ head = &udptable[hash & (UDP_HTABLE_SIZE - 1)];
sk_add_node(sk, head);
sock_prot_inc_use(sk->sk_prot);
}
@@ -242,63 +269,78 @@ static struct sock *__udp4_lib_lookup(__be32 saddr, __be16 sport,
{
struct sock *sk, *result = NULL;
struct hlist_node *node;
- unsigned short hnum = ntohs(dport);
- int badness = -1;
+ unsigned int hash, hashwild;
+ int score, best = -1;
+
+ hash = hash_port_and_addr(ntohs(dport), daddr);
+ hashwild = hash_port_and_addr(ntohs(dport), 0);
read_lock(&udp_hash_lock);
- sk_for_each(sk, node, &udptable[hnum & (UDP_HTABLE_SIZE - 1)]) {
+
+lookup:
+
+ sk_for_each(sk, node, &udptable[hash & (UDP_HTABLE_SIZE - 1)]) {
struct inet_sock *inet = inet_sk(sk);
- if (sk->sk_hash == hnum && !ipv6_only_sock(sk)) {
- int score = (sk->sk_family == PF_INET ? 1 : 0);
- if (inet->rcv_saddr) {
- if (inet->rcv_saddr != daddr)
- continue;
- score+=2;
- }
- if (inet->daddr) {
- if (inet->daddr != saddr)
- continue;
- score+=2;
- }
- if (inet->dport) {
- if (inet->dport != sport)
- continue;
- score+=2;
- }
- if (sk->sk_bound_dev_if) {
- if (sk->sk_bound_dev_if != dif)
- continue;
- score+=2;
- }
- if (score == 9) {
- result = sk;
- break;
- } else if (score > badness) {
- result = sk;
- badness = score;
- }
+ if (sk->sk_hash != hash || ipv6_only_sock(sk) ||
+ inet->num != dport)
+ continue;
+
+ score = (sk->sk_family == PF_INET ? 1 : 0);
+ if (inet->rcv_saddr) {
+ if (inet->rcv_saddr != daddr)
+ continue;
+ score+=2;
+ }
+ if (inet->daddr) {
+ if (inet->daddr != saddr)
+ continue;
+ score+=2;
+ }
+ if (inet->dport) {
+ if (inet->dport != sport)
+ continue;
+ score+=2;
+ }
+ if (sk->sk_bound_dev_if) {
+ if (sk->sk_bound_dev_if != dif)
+ continue;
+ score+=2;
+ }
+ if (score == 9) {
+ result = sk;
+ goto found;
+ } else if (score > best) {
+ result = sk;
+ best = score;
}
}
+
+ if (hash != hashwild) {
+ hash = hashwild;
+ goto lookup;
+ }
+found:
if (result)
sock_hold(result);
read_unlock(&udp_hash_lock);
return result;
}
-static inline struct sock *udp_v4_mcast_next(struct sock *sk,
- __be16 loc_port, __be32 loc_addr,
- __be16 rmt_port, __be32 rmt_addr,
- int dif)
+static inline struct sock *udp_v4_mcast_next(
+ struct sock *sk,
+ unsigned int hnum, __be16 loc_port, __be32 loc_addr,
+ __be16 rmt_port, __be32 rmt_addr,
+ int dif)
{
struct hlist_node *node;
struct sock *s = sk;
- unsigned short hnum = ntohs(loc_port);
sk_for_each_from(s, node) {
struct inet_sock *inet = inet_sk(s);
if (s->sk_hash != hnum ||
+ inet->num != loc_port ||
(inet->daddr && inet->daddr != rmt_addr) ||
(inet->dport != rmt_port && inet->dport) ||
(inet->rcv_saddr && inet->rcv_saddr != loc_addr) ||
@@ -1129,29 +1171,44 @@ static int __udp4_lib_mcast_deliver(struct sk_buff *skb,
__be32 saddr, __be32 daddr,
struct hlist_head udptable[])
{
- struct sock *sk;
+ struct sock *sk, *skw, *sknext;
int dif;
+ unsigned int hash = hash_port_and_addr(ntohs(uh->dest), daddr);
+ unsigned int hashwild = hash_port_and_addr(ntohs(uh->dest), 0);
- read_lock(&udp_hash_lock);
- sk = sk_head(&udptable[ntohs(uh->dest) & (UDP_HTABLE_SIZE - 1)]);
dif = skb->dev->ifindex;
- sk = udp_v4_mcast_next(sk, uh->dest, daddr, uh->source, saddr, dif);
- if (sk) {
- struct sock *sknext = NULL;
+ read_lock(&udp_hash_lock);
+
+ sk = sk_head(&udptable[hash & (UDP_HTABLE_SIZE - 1)]);
+ skw = sk_head(&udptable[hashwild & (UDP_HTABLE_SIZE - 1)]);
+
+ sk = udp_v4_mcast_next(sk, hash, uh->dest, daddr, uh->source, saddr, dif);
+ if (!sk) {
+ hash = hashwild;
+ sk = udp_v4_mcast_next(skw, hash, uh->dest, daddr, uh->source,
+ saddr, dif);
+ }
+ if (sk) {
do {
struct sk_buff *skb1 = skb;
-
- sknext = udp_v4_mcast_next(sk_next(sk), uh->dest, daddr,
- uh->source, saddr, dif);
+ sknext = udp_v4_mcast_next(sk_next(sk), hash, uh->dest,
+ daddr, uh->source, saddr, dif);
+ if (!sknext && hash != hashwild) {
+ hash = hashwild;
+ sknext = udp_v4_mcast_next(skw, hash, uh->dest,
+ daddr, uh->source, saddr, dif);
+ }
if (sknext)
skb1 = skb_clone(skb, GFP_ATOMIC);
if (skb1) {
int ret = udp_queue_rcv_skb(sk, skb1);
if (ret > 0)
- /* we should probably re-process instead
- * of dropping packets here. */
+ /*
+ * we should probably re-process
+ * instead of dropping packets here.
+ */
kfree_skb(skb1);
}
sk = sknext;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e04e49373505..3452433cbc96 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2359,8 +2359,9 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
break;
case NETDEV_CHANGENAME:
-#ifdef CONFIG_SYSCTL
if (idev) {
+ snmp6_unregister_dev(idev);
+#ifdef CONFIG_SYSCTL
addrconf_sysctl_unregister(&idev->cnf);
neigh_sysctl_unregister(idev->nd_parms);
neigh_sysctl_register(dev, idev->nd_parms,
@@ -2368,8 +2369,9 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
&ndisc_ifinfo_sysctl_change,
NULL);
addrconf_sysctl_register(idev, &idev->cnf);
- }
#endif
+ snmp6_register_dev(idev);
+ }
break;
}
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index acb306a5dd56..920dc9cf6a84 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -223,6 +223,7 @@ int snmp6_unregister_dev(struct inet6_dev *idev)
return -EINVAL;
remove_proc_entry(idev->stats.proc_dir_entry->name,
proc_net_devsnmp6);
+ idev->stats.proc_dir_entry = NULL;
return 0;
}
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 538499a89975..5502cc948dfb 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -261,7 +261,7 @@ static int xfrm6_tunnel_rcv(struct sk_buff *skb)
__be32 spi;
spi = xfrm6_tunnel_spi_lookup((xfrm_address_t *)&iph->saddr);
- return xfrm6_rcv_spi(skb, spi);
+ return xfrm6_rcv_spi(skb, spi) > 0 ? : 0;
}
static int xfrm6_tunnel_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 60f293842a39..903bdb6eaaa1 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -90,20 +90,43 @@ struct iucv_irq_data {
u32 res2[8];
};
-struct iucv_work {
+struct iucv_irq_list {
struct list_head list;
struct iucv_irq_data data;
};
-static LIST_HEAD(iucv_work_queue);
-static DEFINE_SPINLOCK(iucv_work_lock);
-
static struct iucv_irq_data *iucv_irq_data;
static cpumask_t iucv_buffer_cpumask = CPU_MASK_NONE;
static cpumask_t iucv_irq_cpumask = CPU_MASK_NONE;
-static void iucv_tasklet_handler(unsigned long);
-static DECLARE_TASKLET(iucv_tasklet, iucv_tasklet_handler,0);
+/*
+ * Queue of interrupt buffers lock for delivery via the tasklet
+ * (fast but can't call smp_call_function).
+ */
+static LIST_HEAD(iucv_task_queue);
+
+/*
+ * The tasklet for fast delivery of iucv interrupts.
+ */
+static void iucv_tasklet_fn(unsigned long);
+static DECLARE_TASKLET(iucv_tasklet, iucv_tasklet_fn,0);
+
+/*
+ * Queue of interrupt buffers for delivery via a work queue
+ * (slower but can call smp_call_function).
+ */
+static LIST_HEAD(iucv_work_queue);
+
+/*
+ * The work element to deliver path pending interrupts.
+ */
+static void iucv_work_fn(struct work_struct *work);
+static DECLARE_WORK(iucv_work, iucv_work_fn);
+
+/*
+ * Spinlock protecting task and work queue.
+ */
+static DEFINE_SPINLOCK(iucv_queue_lock);
enum iucv_command_codes {
IUCV_QUERY = 0,
@@ -147,10 +170,10 @@ static unsigned long iucv_max_pathid;
static DEFINE_SPINLOCK(iucv_table_lock);
/*
- * iucv_tasklet_cpu: contains the number of the cpu executing the tasklet.
- * Needed for iucv_path_sever called from tasklet.
+ * iucv_active_cpu: contains the number of the cpu executing the tasklet
+ * or the work handler. Needed for iucv_path_sever called from tasklet.
*/
-static int iucv_tasklet_cpu = -1;
+static int iucv_active_cpu = -1;
/*
* Mutex and wait queue for iucv_register/iucv_unregister.
@@ -449,17 +472,19 @@ static void iucv_setmask_mp(void)
{
int cpu;
+ preempt_disable();
for_each_online_cpu(cpu)
/* Enable all cpus with a declared buffer. */
if (cpu_isset(cpu, iucv_buffer_cpumask) &&
!cpu_isset(cpu, iucv_irq_cpumask))
smp_call_function_on(iucv_allow_cpu, NULL, 0, 1, cpu);
+ preempt_enable();
}
/**
* iucv_setmask_up
*
- * Allow iucv interrupts on a single cpus.
+ * Allow iucv interrupts on a single cpu.
*/
static void iucv_setmask_up(void)
{
@@ -493,8 +518,10 @@ static int iucv_enable(void)
goto out;
/* Declare per cpu buffers. */
rc = -EIO;
+ preempt_disable();
for_each_online_cpu(cpu)
smp_call_function_on(iucv_declare_cpu, NULL, 0, 1, cpu);
+ preempt_enable();
if (cpus_empty(iucv_buffer_cpumask))
/* No cpu could declare an iucv buffer. */
goto out_path;
@@ -584,48 +611,49 @@ static int iucv_sever_pathid(u16 pathid, u8 userdata[16])
return iucv_call_b2f0(IUCV_SEVER, parm);
}
+#ifdef CONFIG_SMP
/**
- * __iucv_cleanup_pathid
+ * __iucv_cleanup_queue
* @dummy: unused dummy argument
*
* Nop function called via smp_call_function to force work items from
* pending external iucv interrupts to the work queue.
*/
-static void __iucv_cleanup_pathid(void *dummy)
+static void __iucv_cleanup_queue(void *dummy)
{
}
+#endif
/**
- * iucv_cleanup_pathid
- * @pathid: 16 bit pathid
+ * iucv_cleanup_queue
*
* Function called after a path has been severed to find all remaining
* work items for the now stale pathid. The caller needs to hold the
* iucv_table_lock.
*/
-static void iucv_cleanup_pathid(u16 pathid)
+static void iucv_cleanup_queue(void)
{
- struct iucv_work *p, *n;
+ struct iucv_irq_list *p, *n;
/*
- * Path is severed, the pathid can be reused immediatly on
- * a iucv connect or a connection pending interrupt.
- * iucv_path_connect and connection pending interrupt will
- * wait until the iucv_table_lock is released before the
- * recycled pathid enters the system.
- * Force remaining interrupts to the work queue, then
- * scan the work queue for items of this path.
+ * When a path is severed, the pathid can be reused immediatly
+ * on a iucv connect or a connection pending interrupt. Remove
+ * all entries from the task queue that refer to a stale pathid
+ * (iucv_path_table[ix] == NULL). Only then do the iucv connect
+ * or deliver the connection pending interrupt. To get all the
+ * pending interrupts force them to the work queue by calling
+ * an empty function on all cpus.
*/
- smp_call_function(__iucv_cleanup_pathid, NULL, 0, 1);
- spin_lock_irq(&iucv_work_lock);
- list_for_each_entry_safe(p, n, &iucv_work_queue, list) {
- /* Remove work items for pathid except connection pending */
- if (p->data.ippathid == pathid && p->data.iptype != 0x01) {
+ smp_call_function(__iucv_cleanup_queue, NULL, 0, 1);
+ spin_lock_irq(&iucv_queue_lock);
+ list_for_each_entry_safe(p, n, &iucv_task_queue, list) {
+ /* Remove stale work items from the task queue. */
+ if (iucv_path_table[p->data.ippathid] == NULL) {
list_del(&p->list);
kfree(p);
}
}
- spin_unlock_irq(&iucv_work_lock);
+ spin_unlock_irq(&iucv_queue_lock);
}
/**
@@ -684,7 +712,6 @@ void iucv_unregister(struct iucv_handler *handler, int smp)
iucv_sever_pathid(p->pathid, NULL);
iucv_path_table[p->pathid] = NULL;
list_del(&p->list);
- iucv_cleanup_pathid(p->pathid);
iucv_path_free(p);
}
spin_unlock_bh(&iucv_table_lock);
@@ -757,9 +784,9 @@ int iucv_path_connect(struct iucv_path *path, struct iucv_handler *handler,
union iucv_param *parm;
int rc;
- preempt_disable();
- if (iucv_tasklet_cpu != smp_processor_id())
- spin_lock_bh(&iucv_table_lock);
+ BUG_ON(in_atomic());
+ spin_lock_bh(&iucv_table_lock);
+ iucv_cleanup_queue();
parm = percpu_ptr(iucv_param, smp_processor_id());
memset(parm, 0, sizeof(union iucv_param));
parm->ctrl.ipmsglim = path->msglim;
@@ -794,9 +821,7 @@ int iucv_path_connect(struct iucv_path *path, struct iucv_handler *handler,
rc = -EIO;
}
}
- if (iucv_tasklet_cpu != smp_processor_id())
- spin_unlock_bh(&iucv_table_lock);
- preempt_enable();
+ spin_unlock_bh(&iucv_table_lock);
return rc;
}
@@ -867,15 +892,14 @@ int iucv_path_sever(struct iucv_path *path, u8 userdata[16])
preempt_disable();
- if (iucv_tasklet_cpu != smp_processor_id())
+ if (iucv_active_cpu != smp_processor_id())
spin_lock_bh(&iucv_table_lock);
rc = iucv_sever_pathid(path->pathid, userdata);
if (!rc) {
iucv_path_table[path->pathid] = NULL;
list_del_init(&path->list);
- iucv_cleanup_pathid(path->pathid);
}
- if (iucv_tasklet_cpu != smp_processor_id())
+ if (iucv_active_cpu != smp_processor_id())
spin_unlock_bh(&iucv_table_lock);
preempt_enable();
return rc;
@@ -1244,8 +1268,7 @@ static void iucv_path_complete(struct iucv_irq_data *data)
struct iucv_path_complete *ipc = (void *) data;
struct iucv_path *path = iucv_path_table[ipc->ippathid];
- BUG_ON(!path || !path->handler);
- if (path->handler->path_complete)
+ if (path && path->handler && path->handler->path_complete)
path->handler->path_complete(path, ipc->ipuser);
}
@@ -1273,14 +1296,14 @@ static void iucv_path_severed(struct iucv_irq_data *data)
struct iucv_path_severed *ips = (void *) data;
struct iucv_path *path = iucv_path_table[ips->ippathid];
- BUG_ON(!path || !path->handler);
+ if (!path || !path->handler) /* Already severed */
+ return;
if (path->handler->path_severed)
path->handler->path_severed(path, ips->ipuser);
else {
iucv_sever_pathid(path->pathid, NULL);
iucv_path_table[path->pathid] = NULL;
list_del_init(&path->list);
- iucv_cleanup_pathid(path->pathid);
iucv_path_free(path);
}
}
@@ -1309,8 +1332,7 @@ static void iucv_path_quiesced(struct iucv_irq_data *data)
struct iucv_path_quiesced *ipq = (void *) data;
struct iucv_path *path = iucv_path_table[ipq->ippathid];
- BUG_ON(!path || !path->handler);
- if (path->handler->path_quiesced)
+ if (path && path->handler && path->handler->path_quiesced)
path->handler->path_quiesced(path, ipq->ipuser);
}
@@ -1338,8 +1360,7 @@ static void iucv_path_resumed(struct iucv_irq_data *data)
struct iucv_path_resumed *ipr = (void *) data;
struct iucv_path *path = iucv_path_table[ipr->ippathid];
- BUG_ON(!path || !path->handler);
- if (path->handler->path_resumed)
+ if (path && path->handler && path->handler->path_resumed)
path->handler->path_resumed(path, ipr->ipuser);
}
@@ -1371,8 +1392,7 @@ static void iucv_message_complete(struct iucv_irq_data *data)
struct iucv_path *path = iucv_path_table[imc->ippathid];
struct iucv_message msg;
- BUG_ON(!path || !path->handler);
- if (path->handler->message_complete) {
+ if (path && path->handler && path->handler->message_complete) {
msg.flags = imc->ipflags1;
msg.id = imc->ipmsgid;
msg.audit = imc->ipaudit;
@@ -1417,8 +1437,7 @@ static void iucv_message_pending(struct iucv_irq_data *data)
struct iucv_path *path = iucv_path_table[imp->ippathid];
struct iucv_message msg;
- BUG_ON(!path || !path->handler);
- if (path->handler->message_pending) {
+ if (path && path->handler && path->handler->message_pending) {
msg.flags = imp->ipflags1;
msg.id = imp->ipmsgid;
msg.class = imp->iptrgcls;
@@ -1433,17 +1452,16 @@ static void iucv_message_pending(struct iucv_irq_data *data)
}
/**
- * iucv_tasklet_handler:
+ * iucv_tasklet_fn:
*
* This tasklet loops over the queue of irq buffers created by
* iucv_external_interrupt, calls the appropriate action handler
* and then frees the buffer.
*/
-static void iucv_tasklet_handler(unsigned long ignored)
+static void iucv_tasklet_fn(unsigned long ignored)
{
typedef void iucv_irq_fn(struct iucv_irq_data *);
static iucv_irq_fn *irq_fn[] = {
- [0x01] = iucv_path_pending,
[0x02] = iucv_path_complete,
[0x03] = iucv_path_severed,
[0x04] = iucv_path_quiesced,
@@ -1453,38 +1471,70 @@ static void iucv_tasklet_handler(unsigned long ignored)
[0x08] = iucv_message_pending,
[0x09] = iucv_message_pending,
};
- struct iucv_work *p;
+ struct list_head task_queue = LIST_HEAD_INIT(task_queue);
+ struct iucv_irq_list *p, *n;
/* Serialize tasklet, iucv_path_sever and iucv_path_connect. */
spin_lock(&iucv_table_lock);
- iucv_tasklet_cpu = smp_processor_id();
+ iucv_active_cpu = smp_processor_id();
- spin_lock_irq(&iucv_work_lock);
- while (!list_empty(&iucv_work_queue)) {
- p = list_entry(iucv_work_queue.next, struct iucv_work, list);
+ spin_lock_irq(&iucv_queue_lock);
+ list_splice_init(&iucv_task_queue, &task_queue);
+ spin_unlock_irq(&iucv_queue_lock);
+
+ list_for_each_entry_safe(p, n, &task_queue, list) {
list_del_init(&p->list);
- spin_unlock_irq(&iucv_work_lock);
irq_fn[p->data.iptype](&p->data);
kfree(p);
- spin_lock_irq(&iucv_work_lock);
}
- spin_unlock_irq(&iucv_work_lock);
- iucv_tasklet_cpu = -1;
+ iucv_active_cpu = -1;
spin_unlock(&iucv_table_lock);
}
/**
+ * iucv_work_fn:
+ *
+ * This work function loops over the queue of path pending irq blocks
+ * created by iucv_external_interrupt, calls the appropriate action
+ * handler and then frees the buffer.
+ */
+static void iucv_work_fn(struct work_struct *work)
+{
+ typedef void iucv_irq_fn(struct iucv_irq_data *);
+ struct list_head work_queue = LIST_HEAD_INIT(work_queue);
+ struct iucv_irq_list *p, *n;
+
+ /* Serialize tasklet, iucv_path_sever and iucv_path_connect. */
+ spin_lock_bh(&iucv_table_lock);
+ iucv_active_cpu = smp_processor_id();
+
+ spin_lock_irq(&iucv_queue_lock);
+ list_splice_init(&iucv_work_queue, &work_queue);
+ spin_unlock_irq(&iucv_queue_lock);
+
+ iucv_cleanup_queue();
+ list_for_each_entry_safe(p, n, &work_queue, list) {
+ list_del_init(&p->list);
+ iucv_path_pending(&p->data);
+ kfree(p);
+ }
+
+ iucv_active_cpu = -1;
+ spin_unlock_bh(&iucv_table_lock);
+}
+
+/**
* iucv_external_interrupt
* @code: irq code
*
* Handles external interrupts coming in from CP.
- * Places the interrupt buffer on a queue and schedules iucv_tasklet_handler().
+ * Places the interrupt buffer on a queue and schedules iucv_tasklet_fn().
*/
static void iucv_external_interrupt(u16 code)
{
struct iucv_irq_data *p;
- struct iucv_work *work;
+ struct iucv_irq_list *work;
p = percpu_ptr(iucv_irq_data, smp_processor_id());
if (p->ippathid >= iucv_max_pathid) {
@@ -1498,16 +1548,23 @@ static void iucv_external_interrupt(u16 code)
printk(KERN_ERR "iucv_do_int: unknown iucv interrupt\n");
return;
}
- work = kmalloc(sizeof(struct iucv_work), GFP_ATOMIC);
+ work = kmalloc(sizeof(struct iucv_irq_list), GFP_ATOMIC);
if (!work) {
printk(KERN_WARNING "iucv_external_interrupt: out of memory\n");
return;
}
memcpy(&work->data, p, sizeof(work->data));
- spin_lock(&iucv_work_lock);
- list_add_tail(&work->list, &iucv_work_queue);
- spin_unlock(&iucv_work_lock);
- tasklet_schedule(&iucv_tasklet);
+ spin_lock(&iucv_queue_lock);
+ if (p->iptype == 0x01) {
+ /* Path pending interrupt. */
+ list_add_tail(&work->list, &iucv_work_queue);
+ schedule_work(&iucv_work);
+ } else {
+ /* The other interrupts. */
+ list_add_tail(&work->list, &iucv_task_queue);
+ tasklet_schedule(&iucv_tasklet);
+ }
+ spin_unlock(&iucv_queue_lock);
}
/**
@@ -1577,12 +1634,14 @@ out:
*/
static void iucv_exit(void)
{
- struct iucv_work *p, *n;
+ struct iucv_irq_list *p, *n;
- spin_lock_irq(&iucv_work_lock);
+ spin_lock_irq(&iucv_queue_lock);
+ list_for_each_entry_safe(p, n, &iucv_task_queue, list)
+ kfree(p);
list_for_each_entry_safe(p, n, &iucv_work_queue, list)
kfree(p);
- spin_unlock_irq(&iucv_work_lock);
+ spin_unlock_irq(&iucv_queue_lock);
unregister_hotcpu_notifier(&iucv_cpu_notifier);
percpu_free(iucv_param);
percpu_free(iucv_irq_data);
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 11938fb20395..2fc0a92caa78 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -3987,7 +3987,7 @@ static int sctp_getsockopt_peer_addrs(struct sock *sk, int len,
memcpy(&temp, &from->ipaddr, sizeof(temp));
sctp_get_pf_specific(sk->sk_family)->addr_v4map(sp, &temp);
addrlen = sctp_get_af_specific(sk->sk_family)->sockaddr_len;
- if(space_left < addrlen)
+ if (space_left < addrlen)
return -ENOMEM;
if (copy_to_user(to, &temp, addrlen))
return -EFAULT;
@@ -4076,8 +4076,9 @@ done:
/* Helper function that copies local addresses to user and returns the number
* of addresses copied.
*/
-static int sctp_copy_laddrs_to_user_old(struct sock *sk, __u16 port, int max_addrs,
- void __user *to)
+static int sctp_copy_laddrs_old(struct sock *sk, __u16 port,
+ int max_addrs, void *to,
+ int *bytes_copied)
{
struct list_head *pos, *next;
struct sctp_sockaddr_entry *addr;
@@ -4094,10 +4095,10 @@ static int sctp_copy_laddrs_to_user_old(struct sock *sk, __u16 port, int max_add
sctp_get_pf_specific(sk->sk_family)->addr_v4map(sctp_sk(sk),
&temp);
addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
- if (copy_to_user(to, &temp, addrlen))
- return -EFAULT;
+ memcpy(to, &temp, addrlen);
to += addrlen;
+ *bytes_copied += addrlen;
cnt ++;
if (cnt >= max_addrs) break;
}
@@ -4105,8 +4106,8 @@ static int sctp_copy_laddrs_to_user_old(struct sock *sk, __u16 port, int max_add
return cnt;
}
-static int sctp_copy_laddrs_to_user(struct sock *sk, __u16 port,
- void __user **to, size_t space_left)
+static int sctp_copy_laddrs(struct sock *sk, __u16 port, void *to,
+ size_t space_left, int *bytes_copied)
{
struct list_head *pos, *next;
struct sctp_sockaddr_entry *addr;
@@ -4123,14 +4124,14 @@ static int sctp_copy_laddrs_to_user(struct sock *sk, __u16 port,
sctp_get_pf_specific(sk->sk_family)->addr_v4map(sctp_sk(sk),
&temp);
addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
- if(space_left<addrlen)
+ if (space_left < addrlen)
return -ENOMEM;
- if (copy_to_user(*to, &temp, addrlen))
- return -EFAULT;
+ memcpy(to, &temp, addrlen);
- *to += addrlen;
+ to += addrlen;
cnt ++;
space_left -= addrlen;
+ bytes_copied += addrlen;
}
return cnt;
@@ -4154,6 +4155,8 @@ static int sctp_getsockopt_local_addrs_old(struct sock *sk, int len,
int addrlen;
rwlock_t *addr_lock;
int err = 0;
+ void *addrs;
+ int bytes_copied = 0;
if (len != sizeof(struct sctp_getaddrs_old))
return -EINVAL;
@@ -4181,6 +4184,15 @@ static int sctp_getsockopt_local_addrs_old(struct sock *sk, int len,
to = getaddrs.addrs;
+ /* Allocate space for a local instance of packed array to hold all
+ * the data. We store addresses here first and then put write them
+ * to the user in one shot.
+ */
+ addrs = kmalloc(sizeof(union sctp_addr) * getaddrs.addr_num,
+ GFP_KERNEL);
+ if (!addrs)
+ return -ENOMEM;
+
sctp_read_lock(addr_lock);
/* If the endpoint is bound to 0.0.0.0 or ::0, get the valid
@@ -4190,13 +4202,9 @@ static int sctp_getsockopt_local_addrs_old(struct sock *sk, int len,
addr = list_entry(bp->address_list.next,
struct sctp_sockaddr_entry, list);
if (sctp_is_any(&addr->a)) {
- cnt = sctp_copy_laddrs_to_user_old(sk, bp->port,
- getaddrs.addr_num,
- to);
- if (cnt < 0) {
- err = cnt;
- goto unlock;
- }
+ cnt = sctp_copy_laddrs_old(sk, bp->port,
+ getaddrs.addr_num,
+ addrs, &bytes_copied);
goto copy_getaddrs;
}
}
@@ -4206,22 +4214,29 @@ static int sctp_getsockopt_local_addrs_old(struct sock *sk, int len,
memcpy(&temp, &addr->a, sizeof(temp));
sctp_get_pf_specific(sk->sk_family)->addr_v4map(sp, &temp);
addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
- if (copy_to_user(to, &temp, addrlen)) {
- err = -EFAULT;
- goto unlock;
- }
+ memcpy(addrs, &temp, addrlen);
to += addrlen;
+ bytes_copied += addrlen;
cnt ++;
if (cnt >= getaddrs.addr_num) break;
}
copy_getaddrs:
+ sctp_read_unlock(addr_lock);
+
+ /* copy the entire address list into the user provided space */
+ if (copy_to_user(to, addrs, bytes_copied)) {
+ err = -EFAULT;
+ goto error;
+ }
+
+ /* copy the leading structure back to user */
getaddrs.addr_num = cnt;
if (copy_to_user(optval, &getaddrs, sizeof(struct sctp_getaddrs_old)))
err = -EFAULT;
-unlock:
- sctp_read_unlock(addr_lock);
+error:
+ kfree(addrs);
return err;
}
@@ -4241,7 +4256,8 @@ static int sctp_getsockopt_local_addrs(struct sock *sk, int len,
rwlock_t *addr_lock;
int err = 0;
size_t space_left;
- int bytes_copied;
+ int bytes_copied = 0;
+ void *addrs;
if (len <= sizeof(struct sctp_getaddrs))
return -EINVAL;
@@ -4269,6 +4285,9 @@ static int sctp_getsockopt_local_addrs(struct sock *sk, int len,
to = optval + offsetof(struct sctp_getaddrs,addrs);
space_left = len - sizeof(struct sctp_getaddrs) -
offsetof(struct sctp_getaddrs,addrs);
+ addrs = kmalloc(space_left, GFP_KERNEL);
+ if (!addrs)
+ return -ENOMEM;
sctp_read_lock(addr_lock);
@@ -4279,11 +4298,11 @@ static int sctp_getsockopt_local_addrs(struct sock *sk, int len,
addr = list_entry(bp->address_list.next,
struct sctp_sockaddr_entry, list);
if (sctp_is_any(&addr->a)) {
- cnt = sctp_copy_laddrs_to_user(sk, bp->port,
- &to, space_left);
+ cnt = sctp_copy_laddrs(sk, bp->port, addrs,
+ space_left, &bytes_copied);
if (cnt < 0) {
err = cnt;
- goto unlock;
+ goto error;
}
goto copy_getaddrs;
}
@@ -4294,26 +4313,31 @@ static int sctp_getsockopt_local_addrs(struct sock *sk, int len,
memcpy(&temp, &addr->a, sizeof(temp));
sctp_get_pf_specific(sk->sk_family)->addr_v4map(sp, &temp);
addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
- if(space_left < addrlen)
- return -ENOMEM; /*fixme: right error?*/
- if (copy_to_user(to, &temp, addrlen)) {
- err = -EFAULT;
- goto unlock;
+ if (space_left < addrlen) {
+ err = -ENOMEM; /*fixme: right error?*/
+ goto error;
}
+ memcpy(addrs, &temp, addrlen);
to += addrlen;
+ bytes_copied += addrlen;
cnt ++;
space_left -= addrlen;
}
copy_getaddrs:
+ sctp_read_unlock(addr_lock);
+
+ if (copy_to_user(to, addrs, bytes_copied)) {
+ err = -EFAULT;
+ goto error;
+ }
if (put_user(cnt, &((struct sctp_getaddrs __user *)optval)->addr_num))
return -EFAULT;
- bytes_copied = ((char __user *)to) - optval;
if (put_user(bytes_copied, optlen))
return -EFAULT;
-unlock:
- sctp_read_unlock(addr_lock);
+error:
+ kfree(addrs);
return err;
}
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 762926009c04..263e34e45265 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -579,8 +579,22 @@ static inline int xfrm_byidx_should_resize(int total)
return 0;
}
-static DEFINE_MUTEX(hash_resize_mutex);
+void xfrm_spd_getinfo(struct xfrm_spdinfo *si)
+{
+ read_lock_bh(&xfrm_policy_lock);
+ si->incnt = xfrm_policy_count[XFRM_POLICY_IN];
+ si->outcnt = xfrm_policy_count[XFRM_POLICY_OUT];
+ si->fwdcnt = xfrm_policy_count[XFRM_POLICY_FWD];
+ si->inscnt = xfrm_policy_count[XFRM_POLICY_IN+XFRM_POLICY_MAX];
+ si->outscnt = xfrm_policy_count[XFRM_POLICY_OUT+XFRM_POLICY_MAX];
+ si->fwdscnt = xfrm_policy_count[XFRM_POLICY_FWD+XFRM_POLICY_MAX];
+ si->spdhcnt = xfrm_idx_hmask;
+ si->spdhmcnt = xfrm_policy_hashmax;
+ read_unlock_bh(&xfrm_policy_lock);
+}
+EXPORT_SYMBOL(xfrm_spd_getinfo);
+static DEFINE_MUTEX(hash_resize_mutex);
static void xfrm_hash_resize(struct work_struct *__unused)
{
int dir, total;
@@ -1330,6 +1344,40 @@ xfrm_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int nx,
return err;
}
+static int inline
+xfrm_dst_alloc_copy(void **target, void *src, int size)
+{
+ if (!*target) {
+ *target = kmalloc(size, GFP_ATOMIC);
+ if (!*target)
+ return -ENOMEM;
+ }
+ memcpy(*target, src, size);
+ return 0;
+}
+
+static int inline
+xfrm_dst_update_parent(struct dst_entry *dst, struct xfrm_selector *sel)
+{
+#ifdef CONFIG_XFRM_SUB_POLICY
+ struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
+ return xfrm_dst_alloc_copy((void **)&(xdst->partner),
+ sel, sizeof(*sel));
+#else
+ return 0;
+#endif
+}
+
+static int inline
+xfrm_dst_update_origin(struct dst_entry *dst, struct flowi *fl)
+{
+#ifdef CONFIG_XFRM_SUB_POLICY
+ struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
+ return xfrm_dst_alloc_copy((void **)&(xdst->origin), fl, sizeof(*fl));
+#else
+ return 0;
+#endif
+}
static int stale_bundle(struct dst_entry *dst);
@@ -1518,6 +1566,18 @@ restart:
err = -EHOSTUNREACH;
goto error;
}
+
+ if (npols > 1)
+ err = xfrm_dst_update_parent(dst, &pols[1]->selector);
+ else
+ err = xfrm_dst_update_origin(dst, fl);
+ if (unlikely(err)) {
+ write_unlock_bh(&policy->lock);
+ if (dst)
+ dst_free(dst);
+ goto error;
+ }
+
dst->next = policy->bundles;
policy->bundles = dst;
dst_hold(dst);
@@ -1933,6 +1993,15 @@ int xfrm_bundle_ok(struct xfrm_policy *pol, struct xfrm_dst *first,
if (!dst_check(dst->path, ((struct xfrm_dst *)dst)->path_cookie) ||
(dst->dev && !netif_running(dst->dev)))
return 0;
+#ifdef CONFIG_XFRM_SUB_POLICY
+ if (fl) {
+ if (first->origin && !flow_cache_uli_match(first->origin, fl))
+ return 0;
+ if (first->partner &&
+ !xfrm_selector_match(first->partner, fl, family))
+ return 0;
+ }
+#endif
last = NULL;
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 69110fed64b6..4210d91624cd 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -672,6 +672,81 @@ static struct sk_buff *xfrm_state_netlink(struct sk_buff *in_skb,
return skb;
}
+static int build_spdinfo(struct sk_buff *skb, u32 pid, u32 seq, u32 flags)
+{
+ struct xfrm_spdinfo si;
+ struct nlmsghdr *nlh;
+ u32 *f;
+
+ nlh = nlmsg_put(skb, pid, seq, XFRM_MSG_NEWSPDINFO, sizeof(u32), 0);
+ if (nlh == NULL) /* shouldnt really happen ... */
+ return -EMSGSIZE;
+
+ f = nlmsg_data(nlh);
+ *f = flags;
+ xfrm_spd_getinfo(&si);
+
+ if (flags & XFRM_SPD_HMASK)
+ NLA_PUT_U32(skb, XFRMA_SPDHMASK, si.spdhcnt);
+ if (flags & XFRM_SPD_HMAX)
+ NLA_PUT_U32(skb, XFRMA_SPDHMAX, si.spdhmcnt);
+ if (flags & XFRM_SPD_ICNT)
+ NLA_PUT_U32(skb, XFRMA_SPDICNT, si.incnt);
+ if (flags & XFRM_SPD_OCNT)
+ NLA_PUT_U32(skb, XFRMA_SPDOCNT, si.outcnt);
+ if (flags & XFRM_SPD_FCNT)
+ NLA_PUT_U32(skb, XFRMA_SPDFCNT, si.fwdcnt);
+ if (flags & XFRM_SPD_ISCNT)
+ NLA_PUT_U32(skb, XFRMA_SPDISCNT, si.inscnt);
+ if (flags & XFRM_SPD_OSCNT)
+ NLA_PUT_U32(skb, XFRMA_SPDOSCNT, si.inscnt);
+ if (flags & XFRM_SPD_FSCNT)
+ NLA_PUT_U32(skb, XFRMA_SPDFSCNT, si.inscnt);
+
+ return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+ nlmsg_cancel(skb, nlh);
+ return -EMSGSIZE;
+}
+
+static int xfrm_get_spdinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
+{
+ struct sk_buff *r_skb;
+ u32 *flags = NLMSG_DATA(nlh);
+ u32 spid = NETLINK_CB(skb).pid;
+ u32 seq = nlh->nlmsg_seq;
+ int len = NLMSG_LENGTH(sizeof(u32));
+
+
+ if (*flags & XFRM_SPD_HMASK)
+ len += RTA_SPACE(sizeof(u32));
+ if (*flags & XFRM_SPD_HMAX)
+ len += RTA_SPACE(sizeof(u32));
+ if (*flags & XFRM_SPD_ICNT)
+ len += RTA_SPACE(sizeof(u32));
+ if (*flags & XFRM_SPD_OCNT)
+ len += RTA_SPACE(sizeof(u32));
+ if (*flags & XFRM_SPD_FCNT)
+ len += RTA_SPACE(sizeof(u32));
+ if (*flags & XFRM_SPD_ISCNT)
+ len += RTA_SPACE(sizeof(u32));
+ if (*flags & XFRM_SPD_OSCNT)
+ len += RTA_SPACE(sizeof(u32));
+ if (*flags & XFRM_SPD_FSCNT)
+ len += RTA_SPACE(sizeof(u32));
+
+ r_skb = alloc_skb(len, GFP_ATOMIC);
+ if (r_skb == NULL)
+ return -ENOMEM;
+
+ if (build_spdinfo(r_skb, spid, seq, *flags) < 0)
+ BUG();
+
+ return nlmsg_unicast(xfrm_nl, r_skb, spid);
+}
+
static int build_sadinfo(struct sk_buff *skb, u32 pid, u32 seq, u32 flags)
{
struct xfrm_sadinfo si;
@@ -1879,6 +1954,7 @@ static const int xfrm_msg_min[XFRM_NR_MSGTYPES] = {
[XFRM_MSG_REPORT - XFRM_MSG_BASE] = XMSGSIZE(xfrm_user_report),
[XFRM_MSG_MIGRATE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_userpolicy_id),
[XFRM_MSG_GETSADINFO - XFRM_MSG_BASE] = NLMSG_LENGTH(sizeof(u32)),
+ [XFRM_MSG_GETSPDINFO - XFRM_MSG_BASE] = NLMSG_LENGTH(sizeof(u32)),
};
#undef XMSGSIZE
@@ -1907,6 +1983,7 @@ static struct xfrm_link {
[XFRM_MSG_GETAE - XFRM_MSG_BASE] = { .doit = xfrm_get_ae },
[XFRM_MSG_MIGRATE - XFRM_MSG_BASE] = { .doit = xfrm_do_migrate },
[XFRM_MSG_GETSADINFO - XFRM_MSG_BASE] = { .doit = xfrm_get_sadinfo },
+ [XFRM_MSG_GETSPDINFO - XFRM_MSG_BASE] = { .doit = xfrm_get_spdinfo },
};
static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)