/* Use the now-standard shared IRQ implementation. */
if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ?
- &boomerang_interrupt : &vortex_interrupt, IRQF_SHARED, dev->name, dev))) {
+ boomerang_interrupt : vortex_interrupt, IRQF_SHARED, dev->name, dev))) {
pr_err("%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
goto err;
}
{
struct vortex_private *vp = netdev_priv(dev);
+ if (!VORTEX_PCI(vp))
+ return;
+
wol->supported = WAKE_MAGIC;
wol->wolopts = 0;
static int vortex_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct vortex_private *vp = netdev_priv(dev);
+
+ if (!VORTEX_PCI(vp))
+ return -EOPNOTSUPP;
+
if (wol->wolopts & ~WAKE_MAGIC)
return -EINVAL;
return;
}
+ if (VORTEX_PCI(vp)->current_state < PCI_D3hot)
+ return;
+
/* Change the power state to D3; RxEnable doesn't take effect. */
pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
}
config MV643XX_ETH
tristate "Marvell Discovery (643XX) and Orion ethernet support"
- depends on MV64X60 || PPC32 || PLAT_ORION
+ depends on (MV64X60 || PPC32 || PLAT_ORION) && INET
select INET_LRO
select PHYLIB
help
source "drivers/net/stmmac/Kconfig"
+config PCH_GBE
+ tristate "PCH Gigabit Ethernet"
+ depends on PCI
+ ---help---
+ This is a gigabit ethernet driver for Topcliff PCH.
+ Topcliff PCH is the platform controller hub that is used in Intel's
+ general embedded platform.
+ Topcliff PCH has Gigabit Ethernet interface.
+ Using this interface, it is able to access system devices connected
+ to Gigabit Ethernet.
+ This driver enables Gigabit Ethernet function.
+
endif # NETDEV_1000
#
config PASEMI_MAC
tristate "PA Semi 1/10Gbit MAC"
- depends on PPC_PASEMI && PCI
+ depends on PPC_PASEMI && PCI && INET
select PHYLIB
select INET_LRO
help
To compile this driver as a module, choose M here: the module
will be called qlge.
+config BNA
+ tristate "Brocade 1010/1020 10Gb Ethernet Driver support"
+ depends on PCI
+ ---help---
+ This driver supports Brocade 1010/1020 10Gb CEE capable Ethernet
+ cards.
+ To compile this driver as a module, choose M here: the module
+ will be called bna.
+
+ For general information and support, go to the Brocade support
+ website at:
+
+ <http://support.brocade.com>
+
source "drivers/net/sfc/Kconfig"
source "drivers/net/benet/Kconfig"
which contains instruction on how to use this driver (under
the heading "Kernel mode PPPoE").
+config PPTP
+ tristate "PPP over IPv4 (PPTP) (EXPERIMENTAL)"
+ depends on EXPERIMENTAL && PPP && NET_IPGRE_DEMUX
+ help
+ Support for PPP over IPv4.(Point-to-Point Tunneling Protocol)
+
+ This driver requires pppd plugin to work in client mode or
+ modified pptpd (poptop) to work in server mode.
+ See http://accel-pptp.sourceforge.net/ for information how to
+ utilize this module.
+
config PPPOATM
tristate "PPP over ATM"
depends on ATM && PPP
/* 21041 transceiver register settings: TP AUTO, BNC, AUI, TP, TP FD*/
static u16 t21041_csr13[] = { 0xEF01, 0xEF09, 0xEF09, 0xEF01, 0xEF09, };
- static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x6F3F, 0x6F3D, };
+ static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, };
/* If on-chip autonegotiation is broken, use half-duplex (FF3F) instead */
- static u16 t21041_csr14_brk[] = { 0xFF3F, 0xF7FD, 0xF7FD, 0x6F3F, 0x6F3D, };
+ static u16 t21041_csr14_brk[] = { 0xFF3F, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, };
static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
else
macmode &= ~FullDuplex;
- if (netif_msg_link(de)) {
+ if (netif_msg_link(de))
dev_info(&de->dev->dev, "set link %s\n", media_name[media]);
+ if (netif_msg_hw(de)) {
dev_info(&de->dev->dev, "mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n",
dr32(MacMode), dr32(SIAStatus),
dr32(CSR13), dr32(CSR14), dr32(CSR15));
return 0; /* nothing to change */
de_link_down(de);
+ mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK);
de_stop_rxtx(de);
de->media_type = new_media;
de->media_lock = media_lock;
de->media_advertise = ecmd->advertising;
de_set_media(de);
+ if (netif_running(de->dev))
+ de_start_rxtx(de);
return 0;
}
if (vlan_dev)
skb->dev = vlan_dev;
- else if (vlan_id)
- goto drop;
+ else if (vlan_id) {
+ if (!(skb->dev->flags & IFF_PROMISC))
+ goto drop;
+ skb->pkt_type = PACKET_OTHERHOST;
+ }
- return (polling ? netif_receive_skb(skb) : netif_rx(skb));
+ return polling ? netif_receive_skb(skb) : netif_rx(skb);
drop:
dev_kfree_skb_any(skb);
}
EXPORT_SYMBOL(__vlan_hwaccel_rx);
-int vlan_hwaccel_do_receive(struct sk_buff *skb)
+void vlan_hwaccel_do_receive(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
struct vlan_rx_stats *rx_stats;
- skb->dev = vlan_dev_info(dev)->real_dev;
+ skb->dev = vlan_dev_real_dev(dev);
netif_nit_deliver(skb);
skb->dev = dev;
break;
}
u64_stats_update_end(&rx_stats->syncp);
- return 0;
}
struct net_device *vlan_dev_real_dev(const struct net_device *dev)
if (vlan_dev)
skb->dev = vlan_dev;
- else if (vlan_id)
- goto drop;
+ else if (vlan_id) {
+ if (!(skb->dev->flags & IFF_PROMISC))
+ goto drop;
+ skb->pkt_type = PACKET_OTHERHOST;
+ }
for (p = napi->gro_list; p; p = p->next) {
- NAPI_GRO_CB(p)->same_flow =
- p->dev == skb->dev && !compare_ether_header(
- skb_mac_header(p), skb_gro_mac_header(skb));
+ unsigned long diffs;
+
+ diffs = (unsigned long)p->dev ^ (unsigned long)skb->dev;
+ diffs |= compare_ether_header(skb_mac_header(p),
+ skb_gro_mac_header(skb));
+ NAPI_GRO_CB(p)->same_flow = !diffs;
NAPI_GRO_CB(p)->flush = 0;
}
* in any case.
*/
- int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr *address, int mode)
+ long verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr *address, int mode)
{
- int size, err, ct;
+ int size, ct;
+ long err;
if (m->msg_namelen) {
if (mode == VERIFY_READ) {
- err = move_addr_to_kernel(m->msg_name, m->msg_namelen,
+ void __user *namep;
+ namep = (void __user __force *) m->msg_name;
+ err = move_addr_to_kernel(namep, m->msg_namelen,
address);
if (err < 0)
return err;
}
size = m->msg_iovlen * sizeof(struct iovec);
- if (copy_from_user(iov, m->msg_iov, size))
+ if (copy_from_user(iov, (void __user __force *) m->msg_iov, size))
return -EFAULT;
m->msg_iov = iov;
be inserted in and removed from the running kernel whenever you
want). Most people won't need this and can say N.
+config NET_IPGRE_DEMUX
+ tristate "IP: GRE demultiplexer"
+ help
+ This is helper module to demultiplex GRE packets on GRE version field criteria.
+ Required by ip_gre and pptp modules.
+
config NET_IPGRE
tristate "IP: GRE tunnels over IP"
- depends on NET_IPGRE_DEMUX
- depends on IPV6 || IPV6=n
++ depends on (IPV6 || IPV6=n) && NET_IPGRE_DEMUX
help
Tunneling means encapsulating data of one protocol type within
another protocol and sending it over a channel that understands the
If unsure, say Y.
config INET_LRO
- bool "Large Receive Offload (ipv4/tcp)"
+ tristate "Large Receive Offload (ipv4/tcp)"
default y
---help---
Support for Large Receive Offload (ipv4/tcp).
* on the route gc list.
*/
+ rt->dst.flags |= DST_NOCACHE;
if (rt->rt_type == RTN_UNICAST || rt->fl.iif == 0) {
int err = arp_bind_neighbour(&rt->dst);
if (err) {
}
if (net_ratelimit())
- printk(KERN_WARNING "Neighbour table overflow.\n");
+ printk(KERN_WARNING "ipv4: Neighbour table overflow.\n");
rt_drop(rt);
return -ENOBUFS;
}
void rt_bind_peer(struct rtable *rt, int create)
{
- static DEFINE_SPINLOCK(rt_peer_lock);
struct inet_peer *peer;
peer = inet_getpeer(rt->rt_dst, create);
- spin_lock_bh(&rt_peer_lock);
- if (rt->peer == NULL) {
- rt->peer = peer;
- peer = NULL;
- }
- spin_unlock_bh(&rt_peer_lock);
- if (peer)
+ if (peer && cmpxchg(&rt->peer, NULL, peer) != NULL)
inet_putpeer(peer);
}
struct rtable *rth;
struct in_device *in_dev;
u32 tos = RT_FL_TOS(oldflp);
- int err = 0;
- if (ipv4_is_loopback(fl->fl4_src) && !(dev_out->flags&IFF_LOOPBACK))
+ if (ipv4_is_loopback(fl->fl4_src) && !(dev_out->flags & IFF_LOOPBACK))
return -EINVAL;
if (fl->fl4_dst == htonl(0xFFFFFFFF))
if (dev_out->flags & IFF_LOOPBACK)
flags |= RTCF_LOCAL;
- /* get work reference to inet device */
- in_dev = in_dev_get(dev_out);
- if (!in_dev)
+ rcu_read_lock();
+ in_dev = __in_dev_get_rcu(dev_out);
+ if (!in_dev) {
+ rcu_read_unlock();
return -EINVAL;
-
+ }
if (res->type == RTN_BROADCAST) {
flags |= RTCF_BROADCAST | RTCF_LOCAL;
if (res->fi) {
res->fi = NULL;
}
} else if (res->type == RTN_MULTICAST) {
- flags |= RTCF_MULTICAST|RTCF_LOCAL;
+ flags |= RTCF_MULTICAST | RTCF_LOCAL;
if (!ip_check_mc(in_dev, oldflp->fl4_dst, oldflp->fl4_src,
oldflp->proto))
flags &= ~RTCF_LOCAL;
/* If multicast route do not exist use
- default one, but do not gateway in this case.
- Yes, it is hack.
+ * default one, but do not gateway in this case.
+ * Yes, it is hack.
*/
if (res->fi && res->prefixlen < 4) {
fib_info_put(res->fi);
rth = dst_alloc(&ipv4_dst_ops);
if (!rth) {
- err = -ENOBUFS;
- goto cleanup;
+ rcu_read_unlock();
+ return -ENOBUFS;
}
+ in_dev_hold(in_dev);
+ rcu_read_unlock();
+ rth->idev = in_dev;
atomic_set(&rth->dst.__refcnt, 1);
rth->dst.flags= DST_HOST;
cache entry */
rth->dst.dev = dev_out;
dev_hold(dev_out);
- rth->idev = in_dev_get(dev_out);
rth->rt_gateway = fl->fl4_dst;
rth->rt_spec_dst= fl->fl4_src;
rt_set_nexthop(rth, res, 0);
rth->rt_flags = flags;
-
*result = rth;
- cleanup:
- /* release work reference to inet device */
- in_dev_put(in_dev);
-
- return err;
+ return 0;
}
static int ip_mkroute_output(struct rtable **rp,
/*
* Major route resolver routine.
+ * called with rcu_read_lock();
*/
static int ip_route_output_slow(struct net *net, struct rtable **rp,
.iif = net->loopback_dev->ifindex,
.oif = oldflp->oif };
struct fib_result res;
- unsigned flags = 0;
+ unsigned int flags = 0;
struct net_device *dev_out = NULL;
int free_res = 0;
int err;
(ipv4_is_multicast(oldflp->fl4_dst) ||
oldflp->fl4_dst == htonl(0xFFFFFFFF))) {
/* It is equivalent to inet_addr_type(saddr) == RTN_LOCAL */
- dev_out = ip_dev_find(net, oldflp->fl4_src);
+ dev_out = __ip_dev_find(net, oldflp->fl4_src, false);
if (dev_out == NULL)
goto out;
if (!(oldflp->flags & FLOWI_FLAG_ANYSRC)) {
/* It is equivalent to inet_addr_type(saddr) == RTN_LOCAL */
- dev_out = ip_dev_find(net, oldflp->fl4_src);
- if (dev_out == NULL)
+ if (!__ip_dev_find(net, oldflp->fl4_src, false))
goto out;
- dev_put(dev_out);
- dev_out = NULL;
}
}
if (oldflp->oif) {
- dev_out = dev_get_by_index(net, oldflp->oif);
+ dev_out = dev_get_by_index_rcu(net, oldflp->oif);
err = -ENODEV;
if (dev_out == NULL)
goto out;
/* RACE: Check return value of inet_select_addr instead. */
- if (__in_dev_get_rtnl(dev_out) == NULL) {
- dev_put(dev_out);
+ if (rcu_dereference(dev_out->ip_ptr) == NULL)
goto out; /* Wrong error code */
- }
if (ipv4_is_local_multicast(oldflp->fl4_dst) ||
oldflp->fl4_dst == htonl(0xFFFFFFFF)) {
fl.fl4_dst = fl.fl4_src;
if (!fl.fl4_dst)
fl.fl4_dst = fl.fl4_src = htonl(INADDR_LOOPBACK);
- if (dev_out)
- dev_put(dev_out);
dev_out = net->loopback_dev;
- dev_hold(dev_out);
fl.oif = net->loopback_dev->ifindex;
res.type = RTN_LOCAL;
flags |= RTCF_LOCAL;
res.type = RTN_UNICAST;
goto make_route;
}
- if (dev_out)
- dev_put(dev_out);
err = -ENETUNREACH;
goto out;
}
if (res.type == RTN_LOCAL) {
if (!fl.fl4_src)
fl.fl4_src = fl.fl4_dst;
- if (dev_out)
- dev_put(dev_out);
dev_out = net->loopback_dev;
- dev_hold(dev_out);
fl.oif = dev_out->ifindex;
if (res.fi)
fib_info_put(res.fi);
if (!fl.fl4_src)
fl.fl4_src = FIB_RES_PREFSRC(res);
- if (dev_out)
- dev_put(dev_out);
dev_out = FIB_RES_DEV(res);
- dev_hold(dev_out);
fl.oif = dev_out->ifindex;
make_route:
err = ip_mkroute_output(rp, &res, &fl, oldflp, dev_out, flags);
-
if (free_res)
fib_res_put(&res);
- if (dev_out)
- dev_put(dev_out);
out: return err;
}
int __ip_route_output_key(struct net *net, struct rtable **rp,
const struct flowi *flp)
{
- unsigned hash;
+ unsigned int hash;
+ int res;
struct rtable *rth;
if (!rt_caching(net))
rcu_read_unlock_bh();
slow_output:
- return ip_route_output_slow(net, rp, flp);
+ rcu_read_lock();
+ res = ip_route_output_slow(net, rp, flp);
+ rcu_read_unlock();
+ return res;
}
EXPORT_SYMBOL_GPL(__ip_route_output_key);
dst_release(&(*rp)->dst);
*rp = rt;
- return (rt ? 0 : -ENOMEM);
+ return rt ? 0 : -ENOMEM;
}
int ip_route_output_flow(struct net *net, struct rtable **rp, struct flowi *flp,
sg = sk->sk_route_caps & NETIF_F_SG;
while (--iovlen >= 0) {
- int seglen = iov->iov_len;
+ size_t seglen = iov->iov_len;
unsigned char __user *from = iov->iov_base;
iov++;
err = tp->af_specific->md5_parse(sk, optval, optlen);
break;
#endif
-
+ case TCP_USER_TIMEOUT:
+ /* Cap the max timeout in ms TCP will retry/retrans
+ * before giving up and aborting (ETIMEDOUT) a connection.
+ */
+ icsk->icsk_user_timeout = msecs_to_jiffies(val);
+ break;
default:
err = -ENOPROTOOPT;
break;
case TCP_THIN_DUPACK:
val = tp->thin_dupack;
break;
+
+ case TCP_USER_TIMEOUT:
+ val = jiffies_to_msecs(icsk->icsk_user_timeout);
+ break;
default:
return -ENOPROTOOPT;
}
icsk->icsk_ack.quick = min(quickacks, TCP_MAX_QUICKACKS);
}
-void tcp_enter_quickack_mode(struct sock *sk)
+static void tcp_enter_quickack_mode(struct sock *sk)
{
struct inet_connection_sock *icsk = inet_csk(sk);
tcp_incr_quickack(sk);
}
}
-/* Numbers are taken from RFC3390.
- *
- * John Heffner states:
- *
- * The RFC specifies a window of no more than 4380 bytes
- * unless 2*MSS > 4380. Reading the pseudocode in the RFC
- * is a bit misleading because they use a clamp at 4380 bytes
- * rather than use a multiplier in the relevant range.
- */
__u32 tcp_init_cwnd(struct tcp_sock *tp, struct dst_entry *dst)
{
__u32 cwnd = (dst ? dst_metric(dst, RTAX_INITCWND) : 0);
- if (!cwnd) {
- if (tp->mss_cache > 1460)
- cwnd = 2;
- else
- cwnd = (tp->mss_cache > 1095) ? 3 : 4;
- }
+ if (!cwnd)
+ cwnd = rfc3390_bytes_to_packets(tp->mss_cache);
return min_t(__u32, cwnd, tp->snd_cwnd_clamp);
}
static inline int tcp_skb_timedout(struct sock *sk, struct sk_buff *skb)
{
- return (tcp_time_stamp - TCP_SKB_CB(skb)->when > inet_csk(sk)->icsk_rto);
+ return tcp_time_stamp - TCP_SKB_CB(skb)->when > inet_csk(sk)->icsk_rto;
}
static inline int tcp_head_timedout(struct sock *sk)
cnt += tcp_skb_pcount(skb);
if (cnt > packets) {
- if (tcp_is_sack(tp) || (oldcnt >= packets))
+ if ((tcp_is_sack(tp) && !tcp_is_fack(tp)) ||
+ (oldcnt >= packets))
break;
mss = skb_shinfo(skb)->gso_size;
static inline int tcp_ack_is_dubious(const struct sock *sk, const int flag)
{
- return (!(flag & FLAG_NOT_DUP) || (flag & FLAG_CA_ALERT) ||
- inet_csk(sk)->icsk_ca_state != TCP_CA_Open);
+ return !(flag & FLAG_NOT_DUP) || (flag & FLAG_CA_ALERT) ||
+ inet_csk(sk)->icsk_ca_state != TCP_CA_Open;
}
static inline int tcp_may_raise_cwnd(const struct sock *sk, const int flag)
const u32 ack, const u32 ack_seq,
const u32 nwin)
{
- return (after(ack, tp->snd_una) ||
+ return after(ack, tp->snd_una) ||
after(ack_seq, tp->snd_wl1) ||
- (ack_seq == tp->snd_wl1 && nwin > tp->snd_wnd));
+ (ack_seq == tp->snd_wl1 && nwin > tp->snd_wnd);
}
/* Update our send window.
/* This function calculates a "timeout" which is equivalent to the timeout of a
* TCP connection after "boundary" unsuccessful, exponentially backed-off
- * retransmissions with an initial RTO of TCP_RTO_MIN.
+ * retransmissions with an initial RTO of TCP_RTO_MIN or TCP_TIMEOUT_INIT if
+ * syn_set flag is set.
*/
static bool retransmits_timed_out(struct sock *sk,
unsigned int boundary,
- unsigned int timeout)
++ unsigned int timeout,
+ bool syn_set)
{
- unsigned int timeout, linear_backoff_thresh;
- unsigned int start_ts;
+ unsigned int linear_backoff_thresh, start_ts;
+ unsigned int rto_base = syn_set ? TCP_TIMEOUT_INIT : TCP_RTO_MIN;
if (!inet_csk(sk)->icsk_retransmits)
return false;
else
start_ts = tcp_sk(sk)->retrans_stamp;
- linear_backoff_thresh = ilog2(TCP_RTO_MAX/rto_base);
-
- if (boundary <= linear_backoff_thresh)
- timeout = ((2 << boundary) - 1) * rto_base;
- else
- timeout = ((2 << linear_backoff_thresh) - 1) * rto_base +
- (boundary - linear_backoff_thresh) * TCP_RTO_MAX;
+ if (likely(timeout == 0)) {
- linear_backoff_thresh = ilog2(TCP_RTO_MAX/TCP_RTO_MIN);
++ linear_backoff_thresh = ilog2(TCP_RTO_MAX/rto_base);
- timeout = ((2 << boundary) - 1) * TCP_RTO_MIN;
+ if (boundary <= linear_backoff_thresh)
- timeout = ((2 << linear_backoff_thresh) - 1) * TCP_RTO_MIN +
++ timeout = ((2 << boundary) - 1) * rto_base;
+ else
++ timeout = ((2 << linear_backoff_thresh) - 1) * rto_base +
+ (boundary - linear_backoff_thresh) * TCP_RTO_MAX;
+ }
return (tcp_time_stamp - start_ts) >= timeout;
}
{
struct inet_connection_sock *icsk = inet_csk(sk);
int retry_until;
- bool do_reset;
+ bool do_reset, syn_set = 0;
if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV)) {
if (icsk->icsk_retransmits)
dst_negative_advice(sk);
retry_until = icsk->icsk_syn_retries ? : sysctl_tcp_syn_retries;
+ syn_set = 1;
} else {
-- if (retransmits_timed_out(sk, sysctl_tcp_retries1, 0)) {
++ if (retransmits_timed_out(sk, sysctl_tcp_retries1, 0, 0)) {
/* Black hole detection */
tcp_mtu_probing(icsk, sk);
retry_until = tcp_orphan_retries(sk, alive);
do_reset = alive ||
-- !retransmits_timed_out(sk, retry_until, 0);
++ !retransmits_timed_out(sk, retry_until, 0, 0);
if (tcp_out_of_resources(sk, do_reset))
return 1;
}
}
- if (retransmits_timed_out(sk, retry_until, syn_set)) {
+ if (retransmits_timed_out(sk, retry_until,
- (1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV) ? 0 :
- icsk->icsk_user_timeout)) {
++ syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) {
/* Has it gone just too far? */
tcp_write_err(sk);
return 1;
icsk->icsk_rto = min(icsk->icsk_rto << 1, TCP_RTO_MAX);
}
inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS, icsk->icsk_rto, TCP_RTO_MAX);
-- if (retransmits_timed_out(sk, sysctl_tcp_retries1 + 1, 0))
++ if (retransmits_timed_out(sk, sysctl_tcp_retries1 + 1, 0, 0))
__sk_dst_reset(sk);
out:;
elapsed = keepalive_time_elapsed(tp);
if (elapsed >= keepalive_time_when(tp)) {
- if (icsk->icsk_probes_out >= keepalive_probes(tp)) {
+ /* If the TCP_USER_TIMEOUT option is enabled, use that
+ * to determine when to timeout instead.
+ */
+ if ((icsk->icsk_user_timeout != 0 &&
+ elapsed >= icsk->icsk_user_timeout &&
+ icsk->icsk_probes_out > 0) ||
+ (icsk->icsk_user_timeout == 0 &&
+ icsk->icsk_probes_out >= keepalive_probes(tp))) {
tcp_send_active_reset(sk, GFP_ATOMIC);
tcp_write_err(sk);
goto out;
static __inline__ int rt6_check_expired(const struct rt6_info *rt)
{
- return (rt->rt6i_flags & RTF_EXPIRES &&
- time_after(jiffies, rt->rt6i_expires));
+ return (rt->rt6i_flags & RTF_EXPIRES) &&
+ time_after(jiffies, rt->rt6i_expires);
}
static inline int rt6_need_strict(struct in6_addr *daddr)
{
- return (ipv6_addr_type(daddr) &
- (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK));
+ return ipv6_addr_type(daddr) &
+ (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK);
}
/*
__func__, match);
net = dev_net(rt0->rt6i_dev);
- return (match ? match : net->ipv6.ip6_null_entry);
+ return match ? match : net->ipv6.ip6_null_entry;
}
#ifdef CONFIG_IPV6_ROUTE_INFO
if (net_ratelimit())
printk(KERN_WARNING
- "Neighbour table overflow.\n");
+ "ipv6: Neighbour table overflow.\n");
dst_free(&rt->dst);
return NULL;
}
dst_release(*dstp);
*dstp = new;
- return (new ? 0 : -ENOMEM);
+ return new ? 0 : -ENOMEM;
}
EXPORT_SYMBOL_GPL(ip6_dst_blackhole);
net->ipv6.ip6_rt_gc_expire = rt_gc_timeout>>1;
out:
net->ipv6.ip6_rt_gc_expire -= net->ipv6.ip6_rt_gc_expire>>rt_elasticity;
- return (atomic_read(&ops->entries) > rt_max_size);
+ return atomic_read(&ops->entries) > rt_max_size;
}
/* Clean host part of a prefix. Not necessary in radix tree,
if (addr_type & IPV6_ADDR_MULTICAST)
rt->dst.input = ip6_mc_input;
+ else if (cfg->fc_flags & RTF_LOCAL)
+ rt->dst.input = ip6_input;
else
rt->dst.input = ip6_forward;
they would result in kernel looping; promote them to reject routes
*/
if ((cfg->fc_flags & RTF_REJECT) ||
- (dev && (dev->flags&IFF_LOOPBACK) && !(addr_type&IPV6_ADDR_LOOPBACK))) {
+ (dev && (dev->flags&IFF_LOOPBACK) && !(addr_type&IPV6_ADDR_LOOPBACK)
+ && !(cfg->fc_flags&RTF_LOCAL))) {
/* hold loopback dev/idev if we haven't done so. */
if (dev != net->loopback_dev) {
if (dev) {
* i.e. Path MTU discovery
*/
- void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
- struct net_device *dev, u32 pmtu)
+ static void rt6_do_pmtu_disc(struct in6_addr *daddr, struct in6_addr *saddr,
+ struct net *net, u32 pmtu, int ifindex)
{
struct rt6_info *rt, *nrt;
- struct net *net = dev_net(dev);
int allfrag = 0;
- rt = rt6_lookup(net, daddr, saddr, dev->ifindex, 0);
+ rt = rt6_lookup(net, daddr, saddr, ifindex, 0);
if (rt == NULL)
return;
dst_release(&rt->dst);
}
+ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
+ struct net_device *dev, u32 pmtu)
+ {
+ struct net *net = dev_net(dev);
+
+ /*
+ * RFC 1981 states that a node "MUST reduce the size of the packets it
+ * is sending along the path" that caused the Packet Too Big message.
+ * Since it's not possible in the general case to determine which
+ * interface was used to send the original packet, we update the MTU
+ * on the interface that will be used to send future packets. We also
+ * update the MTU on the interface that received the Packet Too Big in
+ * case the original packet was forced out that interface with
+ * SO_BINDTODEVICE or similar. This is the next best thing to the
+ * correct behaviour, which would be to update the MTU on all
+ * interfaces.
+ */
+ rt6_do_pmtu_disc(daddr, saddr, net, pmtu, 0);
+ rt6_do_pmtu_disc(daddr, saddr, net, pmtu, dev->ifindex);
+ }
+
/*
* Misc support functions
*/
if (rtm->rtm_type == RTN_UNREACHABLE)
cfg->fc_flags |= RTF_REJECT;
+ if (rtm->rtm_type == RTN_LOCAL)
+ cfg->fc_flags |= RTF_LOCAL;
+
cfg->fc_nlinfo.pid = NETLINK_CB(skb).pid;
cfg->fc_nlinfo.nlh = nlh;
cfg->fc_nlinfo.nl_net = sock_net(skb->sk);
NLA_PUT_U32(skb, RTA_TABLE, table);
if (rt->rt6i_flags&RTF_REJECT)
rtm->rtm_type = RTN_UNREACHABLE;
+ else if (rt->rt6i_flags&RTF_LOCAL)
+ rtm->rtm_type = RTN_LOCAL;
else if (rt->rt6i_dev && (rt->rt6i_dev->flags&IFF_LOOPBACK))
rtm->rtm_type = RTN_LOCAL;
else
const struct pnpipehdr *oph = pnp_hdr(oskb);
struct pnpipehdr *ph;
struct sk_buff *skb;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ const struct phonethdr *hdr = pn_hdr(oskb);
+ struct sockaddr_pn spn = {
+ .spn_family = AF_PHONET,
+ .spn_resource = 0xD9,
+ .spn_dev = hdr->pn_sdev,
+ .spn_obj = hdr->pn_sobj,
+ };
+#endif
skb = alloc_skb(MAX_PNPIPE_HEADER + len, priority);
if (!skb)
ph->pipe_handle = oph->pipe_handle;
ph->error_code = code;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ return pn_skb_send(sk, skb, &spn);
+#else
return pn_skb_send(sk, skb, &pipe_srv);
+#endif
}
#define PAD 0x00
+
+#ifdef CONFIG_PHONET_PIPECTRLR
+static u8 pipe_negotiate_fc(u8 *host_fc, u8 *remote_fc, int len)
+{
+ int i, j;
+ u8 base_fc, final_fc;
+
+ for (i = 0; i < len; i++) {
+ base_fc = host_fc[i];
+ for (j = 0; j < len; j++) {
+ if (remote_fc[j] == base_fc) {
+ final_fc = base_fc;
+ goto done;
+ }
+ }
+ }
+ return -EINVAL;
+
+done:
+ return final_fc;
+
+}
+
+static int pipe_get_flow_info(struct sock *sk, struct sk_buff *skb,
+ u8 *pref_rx_fc, u8 *req_tx_fc)
+{
+ struct pnpipehdr *hdr;
+ u8 n_sb;
+
+ if (!pskb_may_pull(skb, sizeof(*hdr) + 4))
+ return -EINVAL;
+
+ hdr = pnp_hdr(skb);
+ n_sb = hdr->data[4];
+
+ __skb_pull(skb, sizeof(*hdr) + 4);
+ while (n_sb > 0) {
+ u8 type, buf[3], len = sizeof(buf);
+ u8 *data = pep_get_sb(skb, &type, &len, buf);
+
+ if (data == NULL)
+ return -EINVAL;
+
+ switch (type) {
+ case PN_PIPE_SB_REQUIRED_FC_TX:
+ if (len < 3 || (data[2] | data[3] | data[4]) > 3)
+ break;
+ req_tx_fc[0] = data[2];
+ req_tx_fc[1] = data[3];
+ req_tx_fc[2] = data[4];
+ break;
+
+ case PN_PIPE_SB_PREFERRED_FC_RX:
+ if (len < 3 || (data[2] | data[3] | data[4]) > 3)
+ break;
+ pref_rx_fc[0] = data[2];
+ pref_rx_fc[1] = data[3];
+ pref_rx_fc[2] = data[4];
+ break;
+
+ }
+ n_sb--;
+ }
+ return 0;
+}
+
+static int pipe_handler_send_req(struct sock *sk, u16 dobj, u8 utid,
+ u8 msg_id, u8 p_handle, gfp_t priority)
+{
+ int len;
+ struct pnpipehdr *ph;
+ struct sk_buff *skb;
+ struct sockaddr_pn spn = {
+ .spn_family = AF_PHONET,
+ .spn_resource = 0xD9,
+ .spn_dev = pn_dev(dobj),
+ .spn_obj = pn_obj(dobj),
+ };
+
+ static const u8 data[4] = {
+ PAD, PAD, PAD, PAD,
+ };
+
+ switch (msg_id) {
+ case PNS_PEP_CONNECT_REQ:
+ len = sizeof(data);
+ break;
+
+ case PNS_PEP_DISCONNECT_REQ:
+ case PNS_PEP_ENABLE_REQ:
+ case PNS_PEP_DISABLE_REQ:
+ len = 0;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ skb = alloc_skb(MAX_PNPIPE_HEADER + len, priority);
+ if (!skb)
+ return -ENOMEM;
+ skb_set_owner_w(skb, sk);
+
+ skb_reserve(skb, MAX_PNPIPE_HEADER);
+ if (len) {
+ __skb_put(skb, len);
+ skb_copy_to_linear_data(skb, data, len);
+ }
+ __skb_push(skb, sizeof(*ph));
+ skb_reset_transport_header(skb);
+ ph = pnp_hdr(skb);
+ ph->utid = utid;
+ ph->message_id = msg_id;
+ ph->pipe_handle = p_handle;
+ ph->error_code = PN_PIPE_NO_ERROR;
+
+ return pn_skb_send(sk, skb, &spn);
+}
+
+static int pipe_handler_send_created_ind(struct sock *sk, u16 dobj,
+ u8 utid, u8 p_handle, u8 msg_id, u8 tx_fc, u8 rx_fc)
+{
+ int err_code;
+ struct pnpipehdr *ph;
+ struct sk_buff *skb;
+ struct sockaddr_pn spn = {
+ .spn_family = AF_PHONET,
+ .spn_resource = 0xD9,
+ .spn_dev = pn_dev(dobj),
+ .spn_obj = pn_obj(dobj),
+ };
+
+ static u8 data[4] = {
+ 0x03, 0x04,
+ };
+ data[2] = tx_fc;
+ data[3] = rx_fc;
+
+ /*
+ * actually, below is number of sub-blocks and not error code.
+ * Pipe_created_ind message format does not have any
+ * error code field. However, the Phonet stack will always send
+ * an error code as part of pnpipehdr. So, use that err_code to
+ * specify the number of sub-blocks.
+ */
+ err_code = 0x01;
+
+ skb = alloc_skb(MAX_PNPIPE_HEADER + sizeof(data), GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+ skb_set_owner_w(skb, sk);
+
+ skb_reserve(skb, MAX_PNPIPE_HEADER);
+ __skb_put(skb, sizeof(data));
+ skb_copy_to_linear_data(skb, data, sizeof(data));
+ __skb_push(skb, sizeof(*ph));
+ skb_reset_transport_header(skb);
+ ph = pnp_hdr(skb);
+ ph->utid = utid;
+ ph->message_id = msg_id;
+ ph->pipe_handle = p_handle;
+ ph->error_code = err_code;
+
+ return pn_skb_send(sk, skb, &spn);
+}
+
+static int pipe_handler_send_ind(struct sock *sk, u16 dobj, u8 utid,
+ u8 p_handle, u8 msg_id)
+{
+ int err_code;
+ struct pnpipehdr *ph;
+ struct sk_buff *skb;
+ struct sockaddr_pn spn = {
+ .spn_family = AF_PHONET,
+ .spn_resource = 0xD9,
+ .spn_dev = pn_dev(dobj),
+ .spn_obj = pn_obj(dobj),
+ };
+
+ /*
+ * actually, below is a filler.
+ * Pipe_enabled/disabled_ind message format does not have any
+ * error code field. However, the Phonet stack will always send
+ * an error code as part of pnpipehdr. So, use that err_code to
+ * specify the filler value.
+ */
+ err_code = 0x0;
+
+ skb = alloc_skb(MAX_PNPIPE_HEADER, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+ skb_set_owner_w(skb, sk);
+
+ skb_reserve(skb, MAX_PNPIPE_HEADER);
+ __skb_push(skb, sizeof(*ph));
+ skb_reset_transport_header(skb);
+ ph = pnp_hdr(skb);
+ ph->utid = utid;
+ ph->message_id = msg_id;
+ ph->pipe_handle = p_handle;
+ ph->error_code = err_code;
+
+ return pn_skb_send(sk, skb, &spn);
+}
+
+static int pipe_handler_enable_pipe(struct sock *sk, int cmd)
+{
+ int ret;
+ struct pep_sock *pn = pep_sk(sk);
+
+ switch (cmd) {
+ case PNPIPE_ENABLE:
+ ret = pipe_handler_send_req(sk, pn->pn_sk.sobject,
+ PNS_PIPE_ENABLE_UTID, PNS_PEP_ENABLE_REQ,
+ pn->pipe_handle, GFP_ATOMIC);
+ break;
+
+ case PNPIPE_DISABLE:
+ ret = pipe_handler_send_req(sk, pn->pn_sk.sobject,
+ PNS_PIPE_DISABLE_UTID, PNS_PEP_DISABLE_REQ,
+ pn->pipe_handle, GFP_ATOMIC);
+ break;
+
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int pipe_handler_create_pipe(struct sock *sk, int pipe_handle, int cmd)
+{
+ int ret;
+ struct pep_sock *pn = pep_sk(sk);
+
+ switch (cmd) {
+ case PNPIPE_CREATE:
+ ret = pipe_handler_send_req(sk, pn->pn_sk.sobject,
+ PNS_PEP_CONNECT_UTID, PNS_PEP_CONNECT_REQ,
+ pipe_handle, GFP_ATOMIC);
+ break;
+
+ case PNPIPE_DESTROY:
+ ret = pipe_handler_send_req(sk, pn->remote_pep,
+ PNS_PEP_DISCONNECT_UTID,
+ PNS_PEP_DISCONNECT_REQ,
+ pn->pipe_handle, GFP_ATOMIC);
+ break;
+
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+#endif
+
static int pep_accept_conn(struct sock *sk, struct sk_buff *skb)
{
static const u8 data[20] = {
struct pep_sock *pn = pep_sk(sk);
struct pnpipehdr *ph;
struct sk_buff *skb;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ struct sockaddr_pn spn = {
+ .spn_family = AF_PHONET,
+ .spn_resource = 0xD9,
+ .spn_dev = pn_dev(pn->remote_pep),
+ .spn_obj = pn_obj(pn->remote_pep),
+ };
+#endif
skb = alloc_skb(MAX_PNPIPE_HEADER + 4, priority);
if (!skb)
ph->data[3] = PAD;
ph->data[4] = status;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ return pn_skb_send(sk, skb, &spn);
+#else
return pn_skb_send(sk, skb, &pipe_srv);
+#endif
}
/* Send our RX flow control information to the sender.
static int pipe_rcv_status(struct sock *sk, struct sk_buff *skb)
{
struct pep_sock *pn = pep_sk(sk);
- struct pnpipehdr *hdr = pnp_hdr(skb);
+ struct pnpipehdr *hdr;
int wake = 0;
if (!pskb_may_pull(skb, sizeof(*hdr) + 4))
return -EINVAL;
+ hdr = pnp_hdr(skb);
if (hdr->data[0] != PN_PEP_TYPE_COMMON) {
LIMIT_NETDEBUG(KERN_DEBUG"Phonet unknown PEP type: %u\n",
(unsigned)hdr->data[0]);
struct pnpipehdr *hdr = pnp_hdr(skb);
struct sk_buff_head *queue;
int err = 0;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ struct phonethdr *ph = pn_hdr(skb);
+ static u8 host_pref_rx_fc[3], host_req_tx_fc[3];
+ u8 remote_pref_rx_fc[3], remote_req_tx_fc[3];
+ u8 negotiated_rx_fc, negotiated_tx_fc;
+#endif
BUG_ON(sk->sk_state == TCP_CLOSE_WAIT);
pep_reject_conn(sk, skb, PN_PIPE_ERR_PEP_IN_USE);
break;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ case PNS_PEP_CONNECT_RESP:
+ if ((ph->pn_sdev == pn_dev(pn->remote_pep)) &&
+ (ph->pn_sobj == pn_obj(pn->remote_pep))) {
+ pipe_get_flow_info(sk, skb, remote_pref_rx_fc,
+ remote_req_tx_fc);
+
+ negotiated_tx_fc = pipe_negotiate_fc(remote_req_tx_fc,
+ host_pref_rx_fc,
+ sizeof(host_pref_rx_fc));
+ negotiated_rx_fc = pipe_negotiate_fc(host_req_tx_fc,
+ remote_pref_rx_fc,
+ sizeof(host_pref_rx_fc));
+
+ pn->pipe_state = PIPE_DISABLED;
+ pipe_handler_send_created_ind(sk, pn->remote_pep,
+ PNS_PIPE_CREATED_IND_UTID,
+ pn->pipe_handle, PNS_PIPE_CREATED_IND,
+ negotiated_tx_fc, negotiated_rx_fc);
+ pipe_handler_send_created_ind(sk, pn->pn_sk.sobject,
+ PNS_PIPE_CREATED_IND_UTID,
+ pn->pipe_handle, PNS_PIPE_CREATED_IND,
+ negotiated_tx_fc, negotiated_rx_fc);
+ } else {
+ pipe_handler_send_req(sk, pn->remote_pep,
+ PNS_PEP_CONNECT_UTID,
+ PNS_PEP_CONNECT_REQ, pn->pipe_handle,
+ GFP_ATOMIC);
+ pipe_get_flow_info(sk, skb, host_pref_rx_fc,
+ host_req_tx_fc);
+ }
+ break;
+#endif
+
case PNS_PEP_DISCONNECT_REQ:
pep_reply(sk, skb, PN_PIPE_NO_ERROR, NULL, 0, GFP_ATOMIC);
sk->sk_state = TCP_CLOSE_WAIT;
sk->sk_state_change(sk);
break;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ case PNS_PEP_DISCONNECT_RESP:
+ pn->pipe_state = PIPE_IDLE;
+ pipe_handler_send_req(sk, pn->pn_sk.sobject,
+ PNS_PEP_DISCONNECT_UTID,
+ PNS_PEP_DISCONNECT_REQ, pn->pipe_handle,
+ GFP_KERNEL);
+ break;
+#endif
+
case PNS_PEP_ENABLE_REQ:
/* Wait for PNS_PIPE_(ENABLED|REDIRECTED)_IND */
pep_reply(sk, skb, PN_PIPE_NO_ERROR, NULL, 0, GFP_ATOMIC);
break;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ case PNS_PEP_ENABLE_RESP:
+ if ((ph->pn_sdev == pn_dev(pn->remote_pep)) &&
+ (ph->pn_sobj == pn_obj(pn->remote_pep))) {
+ pn->pipe_state = PIPE_ENABLED;
+ pipe_handler_send_ind(sk, pn->remote_pep,
+ PNS_PIPE_ENABLED_IND_UTID,
+ pn->pipe_handle, PNS_PIPE_ENABLED_IND);
+ pipe_handler_send_ind(sk, pn->pn_sk.sobject,
+ PNS_PIPE_ENABLED_IND_UTID,
+ pn->pipe_handle, PNS_PIPE_ENABLED_IND);
+ } else
+ pipe_handler_send_req(sk, pn->remote_pep,
+ PNS_PIPE_ENABLE_UTID,
+ PNS_PEP_ENABLE_REQ, pn->pipe_handle,
+ GFP_KERNEL);
+
+ break;
+#endif
+
case PNS_PEP_RESET_REQ:
switch (hdr->state_after_reset) {
case PN_PIPE_DISABLE:
pep_reply(sk, skb, PN_PIPE_NO_ERROR, NULL, 0, GFP_ATOMIC);
break;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ case PNS_PEP_DISABLE_RESP:
+ if ((ph->pn_sdev == pn_dev(pn->remote_pep)) &&
+ (ph->pn_sobj == pn_obj(pn->remote_pep))) {
+ pn->pipe_state = PIPE_DISABLED;
+ pipe_handler_send_ind(sk, pn->remote_pep,
+ PNS_PIPE_DISABLED_IND_UTID,
+ pn->pipe_handle,
+ PNS_PIPE_DISABLED_IND);
+ pipe_handler_send_ind(sk, pn->pn_sk.sobject,
+ PNS_PIPE_DISABLED_IND_UTID,
+ pn->pipe_handle,
+ PNS_PIPE_DISABLED_IND);
+ } else
+ pipe_handler_send_req(sk, pn->remote_pep,
+ PNS_PIPE_DISABLE_UTID,
+ PNS_PEP_DISABLE_REQ, pn->pipe_handle,
+ GFP_KERNEL);
+ break;
+#endif
+
case PNS_PEP_CTRL_REQ:
if (skb_queue_len(&pn->ctrlreq_queue) >= PNPIPE_CTRLREQ_MAX) {
atomic_inc(&sk->sk_drops);
newpn->rx_fc = newpn->tx_fc = PN_LEGACY_FLOW_CONTROL;
newpn->init_enable = enabled;
newpn->aligned = aligned;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ newpn->remote_pep = pn->remote_pep;
+#endif
BUG_ON(!skb_queue_empty(&newsk->sk_receive_queue));
skb_queue_head(&newsk->sk_receive_queue, skb);
return err;
}
+static int pipe_do_remove(struct sock *sk)
+{
+ struct pep_sock *pn = pep_sk(sk);
+ struct pnpipehdr *ph;
+ struct sk_buff *skb;
+
+ skb = alloc_skb(MAX_PNPIPE_HEADER, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+
+ skb_reserve(skb, MAX_PNPIPE_HEADER);
+ __skb_push(skb, sizeof(*ph));
+ skb_reset_transport_header(skb);
+ ph = pnp_hdr(skb);
+ ph->utid = 0;
+ ph->message_id = PNS_PIPE_REMOVE_REQ;
+ ph->pipe_handle = pn->pipe_handle;
+ ph->data[0] = PAD;
+
+ return pn_skb_send(sk, skb, &pipe_srv);
+}
+
/* associated socket ceases to exist */
static void pep_sock_close(struct sock *sk, long timeout)
{
sk_for_each_safe(sknode, p, n, &pn->ackq)
sk_del_node_init(sknode);
sk->sk_state = TCP_CLOSE;
- }
+ } else if ((1 << sk->sk_state) & (TCPF_SYN_RECV|TCPF_ESTABLISHED))
+ /* Forcefully remove dangling Phonet pipe */
+ pipe_do_remove(sk);
+
ifindex = pn->ifindex;
pn->ifindex = 0;
release_sock(sk);
{
struct pep_sock *pn = pep_sk(sk);
int val = 0, err = 0;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ int remote_pep;
+ int pipe_handle;
+#endif
if (level != SOL_PNPIPE)
return -ENOPROTOOPT;
lock_sock(sk);
switch (optname) {
+#ifdef CONFIG_PHONET_PIPECTRLR
+ case PNPIPE_CREATE:
+ if (val) {
+ if (pn->pipe_state > PIPE_IDLE) {
+ err = -EFAULT;
+ break;
+ }
+ remote_pep = val & 0xFFFF;
+ pipe_handle = (val >> 16) & 0xFF;
+ pn->remote_pep = remote_pep;
+ err = pipe_handler_create_pipe(sk, pipe_handle,
+ PNPIPE_CREATE);
+ break;
+ }
+
+ case PNPIPE_ENABLE:
+ if (pn->pipe_state != PIPE_DISABLED) {
+ err = -EFAULT;
+ break;
+ }
+ err = pipe_handler_enable_pipe(sk, PNPIPE_ENABLE);
+ break;
+
+ case PNPIPE_DISABLE:
+ if (pn->pipe_state != PIPE_ENABLED) {
+ err = -EFAULT;
+ break;
+ }
+
+ err = pipe_handler_enable_pipe(sk, PNPIPE_DISABLE);
+ break;
+
+ case PNPIPE_DESTROY:
+ if (pn->pipe_state < PIPE_DISABLED) {
+ err = -EFAULT;
+ break;
+ }
+
+ err = pipe_handler_create_pipe(sk, 0x0, PNPIPE_DESTROY);
+ break;
+#endif
+
case PNPIPE_ENCAP:
if (val && val != PNPIPE_ENCAP_IP) {
err = -EINVAL;
case PNPIPE_ENCAP:
val = pn->ifindex ? PNPIPE_ENCAP_IP : PNPIPE_ENCAP_NONE;
break;
+
+#ifdef CONFIG_PHONET_PIPECTRLR
+ case PNPIPE_INQ:
+ val = pn->pipe_state;
+ break;
+#endif
+
case PNPIPE_IFINDEX:
val = pn->ifindex;
break;
{
struct pep_sock *pn = pep_sk(sk);
struct pnpipehdr *ph;
+ int err;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ struct sockaddr_pn spn = {
+ .spn_family = AF_PHONET,
+ .spn_resource = 0xD9,
+ .spn_dev = pn_dev(pn->remote_pep),
+ .spn_obj = pn_obj(pn->remote_pep),
+ };
+#endif
if (pn_flow_safe(pn->tx_fc) &&
!atomic_add_unless(&pn->tx_credits, -1, 0)) {
} else
ph->message_id = PNS_PIPE_DATA;
ph->pipe_handle = pn->pipe_handle;
+#ifdef CONFIG_PHONET_PIPECTRLR
+ err = pn_skb_send(sk, skb, &spn);
+#else
+ err = pn_skb_send(sk, skb, &pipe_srv);
+#endif
+
+ if (err && pn_flow_safe(pn->tx_fc))
+ atomic_inc(&pn->tx_credits);
+ return err;
- return pn_skb_send(sk, skb, &pipe_srv);
}
static int pep_sendmsg(struct kiocb *iocb, struct sock *sk,
skb = sock_alloc_send_skb(sk, MAX_PNPIPE_HEADER + len,
flags & MSG_DONTWAIT, &err);
if (!skb)
- return -ENOBUFS;
+ return err;
skb_reserve(skb, MAX_PHONET_HEADER + 3);
err = memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len);
* be incorporated into the next SCTP release.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/wait.h>
/* Walk through the addrs buffer and count the number of addresses. */
addr_buf = kaddrs;
while (walk_size < addrs_size) {
+ if (walk_size + sizeof(sa_family_t) > addrs_size) {
+ kfree(kaddrs);
+ return -EINVAL;
+ }
+
sa_addr = (struct sockaddr *)addr_buf;
af = sctp_get_af_specific(sa_addr->sa_family);
/* Walk through the addrs buffer and count the number of addresses. */
addr_buf = kaddrs;
while (walk_size < addrs_size) {
+ if (walk_size + sizeof(sa_family_t) > addrs_size) {
+ err = -EINVAL;
+ goto out_free;
+ }
+
sa_addr = (union sctp_addr *)addr_buf;
af = sctp_get_af_specific(sa_addr->sa.sa_family);
- port = ntohs(sa_addr->v4.sin_port);
/* If the address family is not supported or if this address
* causes the address buffer to overflow return EINVAL.
goto out_free;
}
+ port = ntohs(sa_addr->v4.sin_port);
+
/* Save current address so we can work with it */
memcpy(&to, sa_addr, af->sockaddr_len);
if (params.sack_delay == 0 && params.sack_freq == 0)
return 0;
} else if (optlen == sizeof(struct sctp_assoc_value)) {
- printk(KERN_WARNING "SCTP: Use of struct sctp_assoc_value "
- "in delayed_ack socket option deprecated\n");
- printk(KERN_WARNING "SCTP: Use struct sctp_sack_info instead\n");
+ pr_warn("Use of struct sctp_assoc_value in delayed_ack socket option deprecated\n");
+ pr_warn("Use struct sctp_sack_info instead\n");
if (copy_from_user(¶ms, optval, optlen))
return -EFAULT;
int val;
if (optlen == sizeof(int)) {
- printk(KERN_WARNING
- "SCTP: Use of int in maxseg socket option deprecated\n");
- printk(KERN_WARNING
- "SCTP: Use struct sctp_assoc_value instead\n");
+ pr_warn("Use of int in maxseg socket option deprecated\n");
+ pr_warn("Use struct sctp_assoc_value instead\n");
if (copy_from_user(&val, optval, optlen))
return -EFAULT;
params.assoc_id = 0;
int assoc_id = 0;
if (optlen == sizeof(int)) {
- printk(KERN_WARNING
- "SCTP: Use of int in max_burst socket option deprecated\n");
- printk(KERN_WARNING
- "SCTP: Use struct sctp_assoc_value instead\n");
+ pr_warn("Use of int in max_burst socket option deprecated\n");
+ pr_warn("Use struct sctp_assoc_value instead\n");
if (copy_from_user(&val, optval, optlen))
return -EFAULT;
} else if (optlen == sizeof(struct sctp_assoc_value)) {
/* The SCTP ioctl handler. */
SCTP_STATIC int sctp_ioctl(struct sock *sk, int cmd, unsigned long arg)
{
- return -ENOIOCTLCMD;
+ int rc = -ENOTCONN;
+
+ sctp_lock_sock(sk);
+
+ /*
+ * SEQPACKET-style sockets in LISTENING state are valid, for
+ * SCTP, so only discard TCP-style sockets in LISTENING state.
+ */
+ if (sctp_style(sk, TCP) && sctp_sstate(sk, LISTENING))
+ goto out;
+
+ switch (cmd) {
+ case SIOCINQ: {
+ struct sk_buff *skb;
+ unsigned int amount = 0;
+
+ skb = skb_peek(&sk->sk_receive_queue);
+ if (skb != NULL) {
+ /*
+ * We will only return the amount of this packet since
+ * that is all that will be read.
+ */
+ amount = skb->len;
+ }
+ rc = put_user(amount, (int __user *)arg);
+ break;
+ }
+ default:
+ rc = -ENOIOCTLCMD;
+ break;
+ }
+out:
+ sctp_release_sock(sk);
+ return rc;
}
/* This is the function which gets called during socket creation to
}
out:
- return (retval);
+ return retval;
}
}
out:
- return (retval);
+ return retval;
}
/* 7.1.12 Enable/Disable message fragmentation (SCTP_DISABLE_FRAGMENTS)
if (copy_from_user(¶ms, optval, len))
return -EFAULT;
} else if (len == sizeof(struct sctp_assoc_value)) {
- printk(KERN_WARNING "SCTP: Use of struct sctp_assoc_value "
- "in delayed_ack socket option deprecated\n");
- printk(KERN_WARNING "SCTP: Use struct sctp_sack_info instead\n");
+ pr_warn("Use of struct sctp_assoc_value in delayed_ack socket option deprecated\n");
+ pr_warn("Use struct sctp_sack_info instead\n");
if (copy_from_user(¶ms, optval, len))
return -EFAULT;
} else
struct sctp_association *asoc;
if (len == sizeof(int)) {
- printk(KERN_WARNING
- "SCTP: Use of int in maxseg socket option deprecated\n");
- printk(KERN_WARNING
- "SCTP: Use struct sctp_assoc_value instead\n");
+ pr_warn("Use of int in maxseg socket option deprecated\n");
+ pr_warn("Use struct sctp_assoc_value instead\n");
params.assoc_id = 0;
} else if (len >= sizeof(struct sctp_assoc_value)) {
len = sizeof(struct sctp_assoc_value);
struct sctp_association *asoc;
if (len == sizeof(int)) {
- printk(KERN_WARNING
- "SCTP: Use of int in max_burst socket option deprecated\n");
- printk(KERN_WARNING
- "SCTP: Use struct sctp_assoc_value instead\n");
+ pr_warn("Use of int in max_burst socket option deprecated\n");
+ pr_warn("Use struct sctp_assoc_value instead\n");
params.assoc_id = 0;
} else if (len >= sizeof(struct sctp_assoc_value)) {
len = sizeof(struct sctp_assoc_value);
/* Note: sk->sk_num gets filled in if ephemeral port request. */
ret = sctp_get_port_local(sk, &addr);
- return (ret ? 1 : 0);
+ return ret ? 1 : 0;
}
/*
tfm = crypto_alloc_hash(sctp_hmac_alg, 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm)) {
if (net_ratelimit()) {
- printk(KERN_INFO
- "SCTP: failed to load transform for %s: %ld\n",
+ pr_info("failed to load transform for %s: %ld\n",
sctp_hmac_alg, PTR_ERR(tfm));
}
return -ENOSYS;
if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
mask |= POLLERR;
if (sk->sk_shutdown & RCV_SHUTDOWN)
- mask |= POLLRDHUP;
+ mask |= POLLRDHUP | POLLIN | POLLRDNORM;
if (sk->sk_shutdown == SHUTDOWN_MASK)
mask |= POLLHUP;
/* Is it readable? Reconsider this code with TCP-style support. */
- if (!skb_queue_empty(&sk->sk_receive_queue) ||
- (sk->sk_shutdown & RCV_SHUTDOWN))
+ if (!skb_queue_empty(&sk->sk_receive_queue))
mask |= POLLIN | POLLRDNORM;
/* The association is either gone or not ready. */
git://bbs.cooldavid.org / net-next-2.6.git / commitdiff