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-rw-r--r--net/core/skbuff.c15
-rw-r--r--net/ipv4/ipconfig.c6
-rw-r--r--net/ipv4/tcp.c3
-rw-r--r--net/ipv4/udp.c55
-rw-r--r--net/ipv6/addrconf.c2
-rw-r--r--net/ipv6/icmp.c4
-rw-r--r--net/ipv6/ip6_input.c2
-rw-r--r--net/ipv6/ip6mr.c24
-rw-r--r--net/ipv6/route.c2
-rw-r--r--net/packet/af_packet.c9
-rw-r--r--net/wimax/debugfs.c11
-rw-r--r--net/wimax/stack.c13
-rw-r--r--net/wireless/reg.c32
13 files changed, 116 insertions, 62 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 2e5f2ca3bdcd..da74b844f4ea 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2212,10 +2212,10 @@ unsigned int skb_seq_read(unsigned int consumed, const u8 **data,
return 0;
next_skb:
- block_limit = skb_headlen(st->cur_skb);
+ block_limit = skb_headlen(st->cur_skb) + st->stepped_offset;
if (abs_offset < block_limit) {
- *data = st->cur_skb->data + abs_offset;
+ *data = st->cur_skb->data + (abs_offset - st->stepped_offset);
return block_limit - abs_offset;
}
@@ -2250,13 +2250,14 @@ next_skb:
st->frag_data = NULL;
}
- if (st->cur_skb->next) {
- st->cur_skb = st->cur_skb->next;
+ if (st->root_skb == st->cur_skb &&
+ skb_shinfo(st->root_skb)->frag_list) {
+ st->cur_skb = skb_shinfo(st->root_skb)->frag_list;
st->frag_idx = 0;
goto next_skb;
- } else if (st->root_skb == st->cur_skb &&
- skb_shinfo(st->root_skb)->frag_list) {
- st->cur_skb = skb_shinfo(st->root_skb)->frag_list;
+ } else if (st->cur_skb->next) {
+ st->cur_skb = st->cur_skb->next;
+ st->frag_idx = 0;
goto next_skb;
}
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 42a0f3dd3fd6..d722013c1cae 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -1268,6 +1268,9 @@ __be32 __init root_nfs_parse_addr(char *name)
static int __init ip_auto_config(void)
{
__be32 addr;
+#ifdef IPCONFIG_DYNAMIC
+ int retries = CONF_OPEN_RETRIES;
+#endif
#ifdef CONFIG_PROC_FS
proc_net_fops_create(&init_net, "pnp", S_IRUGO, &pnp_seq_fops);
@@ -1304,9 +1307,6 @@ static int __init ip_auto_config(void)
#endif
ic_first_dev->next) {
#ifdef IPCONFIG_DYNAMIC
-
- int retries = CONF_OPEN_RETRIES;
-
if (ic_dynamic() < 0) {
ic_close_devs();
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 0cd71b84e483..76b148bcb0dc 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -524,7 +524,8 @@ static int tcp_splice_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb,
struct tcp_splice_state *tss = rd_desc->arg.data;
int ret;
- ret = skb_splice_bits(skb, offset, tss->pipe, rd_desc->count, tss->flags);
+ ret = skb_splice_bits(skb, offset, tss->pipe, min(rd_desc->count, len),
+ tss->flags);
if (ret > 0)
rd_desc->count -= ret;
return ret;
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index cf5ab0581eba..b7faffe5c029 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -120,8 +120,11 @@ EXPORT_SYMBOL(sysctl_udp_wmem_min);
atomic_t udp_memory_allocated;
EXPORT_SYMBOL(udp_memory_allocated);
+#define PORTS_PER_CHAIN (65536 / UDP_HTABLE_SIZE)
+
static int udp_lib_lport_inuse(struct net *net, __u16 num,
const struct udp_hslot *hslot,
+ unsigned long *bitmap,
struct sock *sk,
int (*saddr_comp)(const struct sock *sk1,
const struct sock *sk2))
@@ -132,12 +135,17 @@ static int udp_lib_lport_inuse(struct net *net, __u16 num,
sk_nulls_for_each(sk2, node, &hslot->head)
if (net_eq(sock_net(sk2), net) &&
sk2 != sk &&
- sk2->sk_hash == num &&
+ (bitmap || sk2->sk_hash == num) &&
(!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) &&
- (*saddr_comp)(sk, sk2))
- return 1;
+ (*saddr_comp)(sk, sk2)) {
+ if (bitmap)
+ __set_bit(sk2->sk_hash / UDP_HTABLE_SIZE,
+ bitmap);
+ else
+ return 1;
+ }
return 0;
}
@@ -160,32 +168,47 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum,
if (!snum) {
int low, high, remaining;
unsigned rand;
- unsigned short first;
+ unsigned short first, last;
+ DECLARE_BITMAP(bitmap, PORTS_PER_CHAIN);
inet_get_local_port_range(&low, &high);
remaining = (high - low) + 1;
rand = net_random();
- snum = first = rand % remaining + low;
- rand |= 1;
- for (;;) {
- hslot = &udptable->hash[udp_hashfn(net, snum)];
+ first = (((u64)rand * remaining) >> 32) + low;
+ /*
+ * force rand to be an odd multiple of UDP_HTABLE_SIZE
+ */
+ rand = (rand | 1) * UDP_HTABLE_SIZE;
+ for (last = first + UDP_HTABLE_SIZE; first != last; first++) {
+ hslot = &udptable->hash[udp_hashfn(net, first)];
+ bitmap_zero(bitmap, PORTS_PER_CHAIN);
spin_lock_bh(&hslot->lock);
- if (!udp_lib_lport_inuse(net, snum, hslot, sk, saddr_comp))
- break;
- spin_unlock_bh(&hslot->lock);
+ udp_lib_lport_inuse(net, snum, hslot, bitmap, sk,
+ saddr_comp);
+
+ snum = first;
+ /*
+ * Iterate on all possible values of snum for this hash.
+ * Using steps of an odd multiple of UDP_HTABLE_SIZE
+ * give us randomization and full range coverage.
+ */
do {
- snum = snum + rand;
- } while (snum < low || snum > high);
- if (snum == first)
- goto fail;
+ if (low <= snum && snum <= high &&
+ !test_bit(snum / UDP_HTABLE_SIZE, bitmap))
+ goto found;
+ snum += rand;
+ } while (snum != first);
+ spin_unlock_bh(&hslot->lock);
}
+ goto fail;
} else {
hslot = &udptable->hash[udp_hashfn(net, snum)];
spin_lock_bh(&hslot->lock);
- if (udp_lib_lport_inuse(net, snum, hslot, sk, saddr_comp))
+ if (udp_lib_lport_inuse(net, snum, hslot, NULL, sk, saddr_comp))
goto fail_unlock;
}
+found:
inet_sk(sk)->num = snum;
sk->sk_hash = snum;
if (sk_unhashed(sk)) {
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e92ad8455c63..f9afb452249c 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4250,7 +4250,7 @@ static struct addrconf_sysctl_table
.procname = "mc_forwarding",
.data = &ipv6_devconf.mc_forwarding,
.maxlen = sizeof(int),
- .mode = 0644,
+ .mode = 0444,
.proc_handler = proc_dointvec,
},
#endif
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 4f433847d95f..36dff8807183 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -443,10 +443,10 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
if (xfrm_decode_session_reverse(skb, &fl2, AF_INET6))
goto relookup_failed;
- if (ip6_dst_lookup(sk, &dst2, &fl))
+ if (ip6_dst_lookup(sk, &dst2, &fl2))
goto relookup_failed;
- err = xfrm_lookup(net, &dst2, &fl, sk, XFRM_LOOKUP_ICMP);
+ err = xfrm_lookup(net, &dst2, &fl2, sk, XFRM_LOOKUP_ICMP);
switch (err) {
case 0:
dst_release(dst);
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 936f48946e20..f171e8dbac91 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -255,6 +255,7 @@ int ip6_mc_input(struct sk_buff *skb)
* IPv6 multicast router mode is now supported ;)
*/
if (dev_net(skb->dev)->ipv6.devconf_all->mc_forwarding &&
+ !(ipv6_addr_type(&hdr->daddr) & IPV6_ADDR_LINKLOCAL) &&
likely(!(IP6CB(skb)->flags & IP6SKB_FORWARDED))) {
/*
* Okay, we try to forward - split and duplicate
@@ -316,7 +317,6 @@ int ip6_mc_input(struct sk_buff *skb)
}
if (skb2) {
- skb2->dev = skb2->dst->dev;
ip6_mr_input(skb2);
}
}
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 3c51b2d827f4..228be551e9c1 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -48,6 +48,7 @@
#include <linux/pim.h>
#include <net/addrconf.h>
#include <linux/netfilter_ipv6.h>
+#include <net/ip6_checksum.h>
/* Big lock, protecting vif table, mrt cache and mroute socket state.
Note that the changes are semaphored via rtnl_lock.
@@ -365,7 +366,9 @@ static int pim6_rcv(struct sk_buff *skb)
pim = (struct pimreghdr *)skb_transport_header(skb);
if (pim->type != ((PIM_VERSION << 4) | PIM_REGISTER) ||
(pim->flags & PIM_NULL_REGISTER) ||
- (ip_compute_csum((void *)pim, sizeof(*pim)) != 0 &&
+ (csum_ipv6_magic(&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
+ sizeof(*pim), IPPROTO_PIM,
+ csum_partial((void *)pim, sizeof(*pim), 0)) &&
csum_fold(skb_checksum(skb, 0, skb->len, 0))))
goto drop;
@@ -392,7 +395,7 @@ static int pim6_rcv(struct sk_buff *skb)
skb_pull(skb, (u8 *)encap - skb->data);
skb_reset_network_header(skb);
skb->dev = reg_dev;
- skb->protocol = htons(ETH_P_IP);
+ skb->protocol = htons(ETH_P_IPV6);
skb->ip_summed = 0;
skb->pkt_type = PACKET_HOST;
dst_release(skb->dst);
@@ -481,6 +484,7 @@ static int mif6_delete(struct net *net, int vifi)
{
struct mif_device *v;
struct net_device *dev;
+ struct inet6_dev *in6_dev;
if (vifi < 0 || vifi >= net->ipv6.maxvif)
return -EADDRNOTAVAIL;
@@ -513,6 +517,10 @@ static int mif6_delete(struct net *net, int vifi)
dev_set_allmulti(dev, -1);
+ in6_dev = __in6_dev_get(dev);
+ if (in6_dev)
+ in6_dev->cnf.mc_forwarding--;
+
if (v->flags & MIFF_REGISTER)
unregister_netdevice(dev);
@@ -622,6 +630,7 @@ static int mif6_add(struct net *net, struct mif6ctl *vifc, int mrtsock)
int vifi = vifc->mif6c_mifi;
struct mif_device *v = &net->ipv6.vif6_table[vifi];
struct net_device *dev;
+ struct inet6_dev *in6_dev;
int err;
/* Is vif busy ? */
@@ -662,6 +671,10 @@ static int mif6_add(struct net *net, struct mif6ctl *vifc, int mrtsock)
return -EINVAL;
}
+ in6_dev = __in6_dev_get(dev);
+ if (in6_dev)
+ in6_dev->cnf.mc_forwarding++;
+
/*
* Fill in the VIF structures
*/
@@ -838,8 +851,6 @@ static int ip6mr_cache_report(struct net *net, struct sk_buff *pkt, mifi_t mifi,
skb->dst = dst_clone(pkt->dst);
skb->ip_summed = CHECKSUM_UNNECESSARY;
-
- skb_pull(skb, sizeof(struct ipv6hdr));
}
if (net->ipv6.mroute6_sk == NULL) {
@@ -1222,8 +1233,10 @@ static int ip6mr_sk_init(struct sock *sk)
rtnl_lock();
write_lock_bh(&mrt_lock);
- if (likely(net->ipv6.mroute6_sk == NULL))
+ if (likely(net->ipv6.mroute6_sk == NULL)) {
net->ipv6.mroute6_sk = sk;
+ net->ipv6.devconf_all->mc_forwarding++;
+ }
else
err = -EADDRINUSE;
write_unlock_bh(&mrt_lock);
@@ -1242,6 +1255,7 @@ int ip6mr_sk_done(struct sock *sk)
if (sk == net->ipv6.mroute6_sk) {
write_lock_bh(&mrt_lock);
net->ipv6.mroute6_sk = NULL;
+ net->ipv6.devconf_all->mc_forwarding--;
write_unlock_bh(&mrt_lock);
mroute_clean_tables(net);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index c4a59824ac2c..9c574235c905 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -794,7 +794,7 @@ void ip6_route_input(struct sk_buff *skb)
.proto = iph->nexthdr,
};
- if (rt6_need_strict(&iph->daddr))
+ if (rt6_need_strict(&iph->daddr) && skb->dev->type != ARPHRD_PIMREG)
flags |= RT6_LOOKUP_F_IFACE;
skb->dst = fib6_rule_lookup(net, &fl, flags, ip6_pol_route_input);
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 5f94db2f3e9e..9454d4ae46df 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -77,6 +77,7 @@
#include <linux/poll.h>
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/mutex.h>
#ifdef CONFIG_INET
#include <net/inet_common.h>
@@ -175,6 +176,7 @@ struct packet_sock {
#endif
struct packet_type prot_hook;
spinlock_t bind_lock;
+ struct mutex pg_vec_lock;
unsigned int running:1, /* prot_hook is attached*/
auxdata:1,
origdev:1;
@@ -1069,6 +1071,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol)
*/
spin_lock_init(&po->bind_lock);
+ mutex_init(&po->pg_vec_lock);
po->prot_hook.func = packet_rcv;
if (sock->type == SOCK_PACKET)
@@ -1865,6 +1868,7 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing
synchronize_net();
err = -EBUSY;
+ mutex_lock(&po->pg_vec_lock);
if (closing || atomic_read(&po->mapped) == 0) {
err = 0;
#define XC(a, b) ({ __typeof__ ((a)) __t; __t = (a); (a) = (b); __t; })
@@ -1886,6 +1890,7 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing
if (atomic_read(&po->mapped))
printk(KERN_DEBUG "packet_mmap: vma is busy: %d\n", atomic_read(&po->mapped));
}
+ mutex_unlock(&po->pg_vec_lock);
spin_lock(&po->bind_lock);
if (was_running && !po->running) {
@@ -1918,7 +1923,7 @@ static int packet_mmap(struct file *file, struct socket *sock, struct vm_area_st
size = vma->vm_end - vma->vm_start;
- lock_sock(sk);
+ mutex_lock(&po->pg_vec_lock);
if (po->pg_vec == NULL)
goto out;
if (size != po->pg_vec_len*po->pg_vec_pages*PAGE_SIZE)
@@ -1941,7 +1946,7 @@ static int packet_mmap(struct file *file, struct socket *sock, struct vm_area_st
err = 0;
out:
- release_sock(sk);
+ mutex_unlock(&po->pg_vec_lock);
return err;
}
#endif
diff --git a/net/wimax/debugfs.c b/net/wimax/debugfs.c
index 87cf4430079c..94d216a46407 100644
--- a/net/wimax/debugfs.c
+++ b/net/wimax/debugfs.c
@@ -28,17 +28,6 @@
#include "debug-levels.h"
-/* Debug framework control of debug levels */
-struct d_level D_LEVEL[] = {
- D_SUBMODULE_DEFINE(debugfs),
- D_SUBMODULE_DEFINE(id_table),
- D_SUBMODULE_DEFINE(op_msg),
- D_SUBMODULE_DEFINE(op_reset),
- D_SUBMODULE_DEFINE(op_rfkill),
- D_SUBMODULE_DEFINE(stack),
-};
-size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
-
#define __debugfs_register(prefix, name, parent) \
do { \
result = d_level_register_debugfs(prefix, name, parent); \
diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index d4da92f8981a..3869c0327882 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -516,6 +516,19 @@ void wimax_dev_rm(struct wimax_dev *wimax_dev)
}
EXPORT_SYMBOL_GPL(wimax_dev_rm);
+
+/* Debug framework control of debug levels */
+struct d_level D_LEVEL[] = {
+ D_SUBMODULE_DEFINE(debugfs),
+ D_SUBMODULE_DEFINE(id_table),
+ D_SUBMODULE_DEFINE(op_msg),
+ D_SUBMODULE_DEFINE(op_reset),
+ D_SUBMODULE_DEFINE(op_rfkill),
+ D_SUBMODULE_DEFINE(stack),
+};
+size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
+
+
struct genl_family wimax_gnl_family = {
.id = GENL_ID_GENERATE,
.name = "WiMAX",
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index bc494cef2102..85c9034c59b2 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -498,6 +498,7 @@ static struct ieee80211_regdomain *country_ie_2_rd(
* calculate the number of reg rules we will need. We will need one
* for each channel subband */
while (country_ie_len >= 3) {
+ int end_channel = 0;
struct ieee80211_country_ie_triplet *triplet =
(struct ieee80211_country_ie_triplet *) country_ie;
int cur_sub_max_channel = 0, cur_channel = 0;
@@ -509,9 +510,25 @@ static struct ieee80211_regdomain *country_ie_2_rd(
continue;
}
+ /* 2 GHz */
+ if (triplet->chans.first_channel <= 14)
+ end_channel = triplet->chans.first_channel +
+ triplet->chans.num_channels;
+ else
+ /*
+ * 5 GHz -- For example in country IEs if the first
+ * channel given is 36 and the number of channels is 4
+ * then the individual channel numbers defined for the
+ * 5 GHz PHY by these parameters are: 36, 40, 44, and 48
+ * and not 36, 37, 38, 39.
+ *
+ * See: http://tinyurl.com/11d-clarification
+ */
+ end_channel = triplet->chans.first_channel +
+ (4 * (triplet->chans.num_channels - 1));
+
cur_channel = triplet->chans.first_channel;
- cur_sub_max_channel = ieee80211_channel_to_frequency(
- cur_channel + triplet->chans.num_channels);
+ cur_sub_max_channel = end_channel;
/* Basic sanity check */
if (cur_sub_max_channel < cur_channel)
@@ -590,15 +607,6 @@ static struct ieee80211_regdomain *country_ie_2_rd(
end_channel = triplet->chans.first_channel +
triplet->chans.num_channels;
else
- /*
- * 5 GHz -- For example in country IEs if the first
- * channel given is 36 and the number of channels is 4
- * then the individual channel numbers defined for the
- * 5 GHz PHY by these parameters are: 36, 40, 44, and 48
- * and not 36, 37, 38, 39.
- *
- * See: http://tinyurl.com/11d-clarification
- */
end_channel = triplet->chans.first_channel +
(4 * (triplet->chans.num_channels - 1));
@@ -1276,7 +1284,7 @@ static void reg_country_ie_process_debug(
if (intersected_rd) {
printk(KERN_DEBUG "cfg80211: We intersect both of these "
"and get:\n");
- print_regdomain_info(rd);
+ print_regdomain_info(intersected_rd);
return;
}
printk(KERN_DEBUG "cfg80211: Intersection between both failed\n");
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-22 12:10:17 +0300