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

Browse source 
Pull networking updates from David Miller:

 1) Significantly shrink the core networking routing structures. Result
    of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf

 2) Add netdevsim driver for testing various offloads, from Jakub
    Kicinski.

 3) Support cross-chip FDB operations in DSA, from Vivien Didelot.

 4) Add a 2nd listener hash table for TCP, similar to what was done for
    UDP. From Martin KaFai Lau.

 5) Add eBPF based queue selection to tun, from Jason Wang.

 6) Lockless qdisc support, from John Fastabend.

 7) SCTP stream interleave support, from Xin Long.

 8) Smoother TCP receive autotuning, from Eric Dumazet.

 9) Lots of erspan tunneling enhancements, from William Tu.

10) Add true function call support to BPF, from Alexei Starovoitov.

11) Add explicit support for GRO HW offloading, from Michael Chan.

12) Support extack generation in more netlink subsystems. From Alexander
    Aring, Quentin Monnet, and Jakub Kicinski.

13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
    Russell King.

14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.

15) Many improvements and simplifications to the NFP driver bpf JIT,
    from Jakub Kicinski.

16) Support for ipv6 non-equal cost multipath routing, from Ido
    Schimmel.

17) Add resource abstration to devlink, from Arkadi Sharshevsky.

18) Packet scheduler classifier shared filter block support, from Jiri
    Pirko.

19) Avoid locking in act_csum, from Davide Caratti.

20) devinet_ioctl() simplifications from Al viro.

21) More TCP bpf improvements from Lawrence Brakmo.

22) Add support for onlink ipv6 route flag, similar to ipv4, from David
    Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
  tls: Add support for encryption using async offload accelerator
  ip6mr: fix stale iterator
  net/sched: kconfig: Remove blank help texts
  openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
  tcp_nv: fix potential integer overflow in tcpnv_acked
  r8169: fix RTL8168EP take too long to complete driver initialization.
  qmi_wwan: Add support for Quectel EP06
  rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
  ipmr: Fix ptrdiff_t print formatting
  ibmvnic: Wait for device response when changing MAC
  qlcnic: fix deadlock bug
  tcp: release sk_frag.page in tcp_disconnect
  ipv4: Get the address of interface correctly.
  net_sched: gen_estimator: fix lockdep splat
  net: macb: Handle HRESP error
  net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
  ipv6: addrconf: break critical section in addrconf_verify_rtnl()
  ipv6: change route cache aging logic
  i40e/i40evf: Update DESC_NEEDED value to reflect larger value
  bnxt_en: cleanup DIM work on device shutdown
  ...
This commit is contained in:
Linus Torvalds 2018-01-31 14:31:10 -08:00
commit b2fe5fa686
1666 changed files with 120605 additions and 45688 deletions
Download patch file Download diff file Expand all files Collapse all files

12
net/sctp/Kconfig
View file

@ -37,18 +37,6 @@ menuconfig IP_SCTP
if IP_SCTP
config NET_SCTPPROBE
tristate "SCTP: Association probing"
depends on PROC_FS && KPROBES
---help---
This module allows for capturing the changes to SCTP association
state in response to incoming packets. It is used for debugging
SCTP congestion control algorithms. If you don't understand
what was just said, you don't need it: say N.
To compile this code as a module, choose M here: the
module will be called sctp_probe.
config SCTP_DBG_OBJCNT
bool "SCTP: Debug object counts"
depends on PROC_FS

5
net/sctp/Makefile
View file

@ -4,7 +4,6 @@
#
obj-$(CONFIG_IP_SCTP) += sctp.o
obj-$(CONFIG_NET_SCTPPROBE) += sctp_probe.o
obj-$(CONFIG_INET_SCTP_DIAG) += sctp_diag.o
sctp-y := sm_statetable.o sm_statefuns.o sm_sideeffect.o \
@ -14,9 +13,7 @@ sctp-y := sm_statetable.o sm_statefuns.o sm_sideeffect.o \
tsnmap.o bind_addr.o socket.o primitive.o \
output.o input.o debug.o stream.o auth.o \
offload.o stream_sched.o stream_sched_prio.o \
stream_sched_rr.o
sctp_probe-y := probe.o
stream_sched_rr.o stream_interleave.o
sctp-$(CONFIG_SCTP_DBG_OBJCNT) += objcnt.o
sctp-$(CONFIG_PROC_FS) += proc.o

2
net/sctp/associola.c
View file

@ -861,7 +861,7 @@ void sctp_assoc_control_transport(struct sctp_association *asoc,
event = sctp_ulpevent_make_peer_addr_change(asoc, &addr,
0, spc_state, error, GFP_ATOMIC);
if (event)
sctp_ulpq_tail_event(&asoc->ulpq, event);
asoc->stream.si->enqueue_event(&asoc->ulpq, event);
}
/* Select new active and retran paths. */

8
net/sctp/chunk.c
View file

@ -124,7 +124,7 @@ static void sctp_datamsg_destroy(struct sctp_datamsg *msg)
ev = sctp_ulpevent_make_send_failed(asoc, chunk, sent,
error, GFP_ATOMIC);
if (ev)
sctp_ulpq_tail_event(&asoc->ulpq, ev);
asoc->stream.si->enqueue_event(&asoc->ulpq, ev);
}
sctp_chunk_put(chunk);
@ -191,7 +191,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
*/
max_data = asoc->pathmtu -
sctp_sk(asoc->base.sk)->pf->af->net_header_len -
sizeof(struct sctphdr) - sizeof(struct sctp_data_chunk);
sizeof(struct sctphdr) - sctp_datachk_len(&asoc->stream);
max_data = SCTP_TRUNC4(max_data);
/* If the the peer requested that we authenticate DATA chunks
@ -264,8 +264,8 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
frag |= SCTP_DATA_SACK_IMM;
}
chunk = sctp_make_datafrag_empty(asoc, sinfo, len, frag,
0, GFP_KERNEL);
chunk = asoc->stream.si->make_datafrag(asoc, sinfo, len, frag,
GFP_KERNEL);
if (!chunk) {
err = -ENOMEM;
goto errout;

2
net/sctp/endpointola.c
View file

@ -232,7 +232,7 @@ void sctp_endpoint_free(struct sctp_endpoint *ep)
{
ep->base.dead = true;
ep->base.sk->sk_state = SCTP_SS_CLOSED;
inet_sk_set_state(ep->base.sk, SCTP_SS_CLOSED);
/* Unlink this endpoint, so we can't find it again! */
sctp_unhash_endpoint(ep);

5
net/sctp/output.c
View file

@ -313,6 +313,7 @@ static enum sctp_xmit __sctp_packet_append_chunk(struct sctp_packet *packet,
/* We believe that this chunk is OK to add to the packet */
switch (chunk->chunk_hdr->type) {
case SCTP_CID_DATA:
case SCTP_CID_I_DATA:
/* Account for the data being in the packet */
sctp_packet_append_data(packet, chunk);
/* Disallow SACK bundling after DATA. */
@ -724,7 +725,7 @@ static enum sctp_xmit sctp_packet_can_append_data(struct sctp_packet *packet,
* or delay in hopes of bundling a full sized packet.
*/
if (chunk->skb->len + q->out_qlen > transport->pathmtu -
packet->overhead - sizeof(struct sctp_data_chunk) - 4)
packet->overhead - sctp_datachk_len(&chunk->asoc->stream) - 4)
/* Enough data queued to fill a packet */
return SCTP_XMIT_OK;
@ -759,7 +760,7 @@ static void sctp_packet_append_data(struct sctp_packet *packet,
asoc->peer.rwnd = rwnd;
sctp_chunk_assign_tsn(chunk);
sctp_chunk_assign_ssn(chunk);
asoc->stream.si->assign_number(chunk);
}
static enum sctp_xmit sctp_packet_will_fit(struct sctp_packet *packet,

12
net/sctp/outqueue.c
View file

@ -67,8 +67,6 @@ static void sctp_mark_missing(struct sctp_outq *q,
__u32 highest_new_tsn,
int count_of_newacks);
static void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 sack_ctsn);
static void sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp);
/* Add data to the front of the queue. */
@ -591,7 +589,7 @@ void sctp_retransmit(struct sctp_outq *q, struct sctp_transport *transport,
* following the procedures outlined in C1 - C5.
*/
if (reason == SCTP_RTXR_T3_RTX)
sctp_generate_fwdtsn(q, q->asoc->ctsn_ack_point);
q->asoc->stream.si->generate_ftsn(q, q->asoc->ctsn_ack_point);
/* Flush the queues only on timeout, since fast_rtx is only
* triggered during sack processing and the queue
@ -942,6 +940,7 @@ static void sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp)
case SCTP_CID_ECN_ECNE:
case SCTP_CID_ASCONF:
case SCTP_CID_FWD_TSN:
case SCTP_CID_I_FWD_TSN:
case SCTP_CID_RECONF:
status = sctp_packet_transmit_chunk(packet, chunk,
one_packet, gfp);
@ -956,7 +955,8 @@ static void sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp)
* sender MUST assure that at least one T3-rtx
* timer is running.
*/
if (chunk->chunk_hdr->type == SCTP_CID_FWD_TSN) {
if (chunk->chunk_hdr->type == SCTP_CID_FWD_TSN ||
chunk->chunk_hdr->type == SCTP_CID_I_FWD_TSN) {
sctp_transport_reset_t3_rtx(transport);
transport->last_time_sent = jiffies;
}
@ -1372,7 +1372,7 @@ int sctp_outq_sack(struct sctp_outq *q, struct sctp_chunk *chunk)
asoc->peer.rwnd = sack_a_rwnd;
sctp_generate_fwdtsn(q, sack_ctsn);
asoc->stream.si->generate_ftsn(q, sack_ctsn);
pr_debug("%s: sack cumulative tsn ack:0x%x\n", __func__, sack_ctsn);
pr_debug("%s: cumulative tsn ack of assoc:%p is 0x%x, "
@ -1795,7 +1795,7 @@ static inline int sctp_get_skip_pos(struct sctp_fwdtsn_skip *skiplist,
}
/* Create and add a fwdtsn chunk to the outq's control queue if needed. */
static void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 ctsn)
void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 ctsn)
{
struct sctp_association *asoc = q->asoc;
struct sctp_chunk *ftsn_chunk = NULL;

244
net/sctp/probe.c
View file

@ -1,244 +0,0 @@
/*
* sctp_probe - Observe the SCTP flow with kprobes.
*
* The idea for this came from Werner Almesberger's umlsim
* Copyright (C) 2004, Stephen Hemminger <shemminger@osdl.org>
*
* Modified for SCTP from Stephen Hemminger's code
* Copyright (C) 2010, Wei Yongjun <yjwei@cn.fujitsu.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/kprobes.h>
#include <linux/socket.h>
#include <linux/sctp.h>
#include <linux/proc_fs.h>
#include <linux/vmalloc.h>
#include <linux/module.h>
#include <linux/kfifo.h>
#include <linux/time.h>
#include <net/net_namespace.h>
#include <net/sctp/sctp.h>
#include <net/sctp/sm.h>
MODULE_SOFTDEP("pre: sctp");
MODULE_AUTHOR("Wei Yongjun <[email protected]>");
MODULE_DESCRIPTION("SCTP snooper");
MODULE_LICENSE("GPL");
static int port __read_mostly = 0;
MODULE_PARM_DESC(port, "Port to match (0=all)");
module_param(port, int, 0);
static unsigned int fwmark __read_mostly = 0;
MODULE_PARM_DESC(fwmark, "skb mark to match (0=no mark)");
module_param(fwmark, uint, 0);
static int bufsize __read_mostly = 64 * 1024;
MODULE_PARM_DESC(bufsize, "Log buffer size (default 64k)");
module_param(bufsize, int, 0);
static int full __read_mostly = 1;
MODULE_PARM_DESC(full, "Full log (1=every ack packet received, 0=only cwnd changes)");
module_param(full, int, 0);
static const char procname[] = "sctpprobe";
static struct {
struct kfifo fifo;
spinlock_t lock;
wait_queue_head_t wait;
struct timespec64 tstart;
} sctpw;
static __printf(1, 2) void printl(const char *fmt, ...)
{
va_list args;
int len;
char tbuf[256];
va_start(args, fmt);
len = vscnprintf(tbuf, sizeof(tbuf), fmt, args);
va_end(args);
kfifo_in_locked(&sctpw.fifo, tbuf, len, &sctpw.lock);
wake_up(&sctpw.wait);
}
static int sctpprobe_open(struct inode *inode, struct file *file)
{
kfifo_reset(&sctpw.fifo);
ktime_get_ts64(&sctpw.tstart);
return 0;
}
static ssize_t sctpprobe_read(struct file *file, char __user *buf,
size_t len, loff_t *ppos)
{
int error = 0, cnt = 0;
unsigned char *tbuf;
if (!buf)
return -EINVAL;
if (len == 0)
return 0;
tbuf = vmalloc(len);
if (!tbuf)
return -ENOMEM;
error = wait_event_interruptible(sctpw.wait,
kfifo_len(&sctpw.fifo) != 0);
if (error)
goto out_free;
cnt = kfifo_out_locked(&sctpw.fifo, tbuf, len, &sctpw.lock);
error = copy_to_user(buf, tbuf, cnt) ? -EFAULT : 0;
out_free:
vfree(tbuf);
return error ? error : cnt;
}
static const struct file_operations sctpprobe_fops = {
.owner = THIS_MODULE,
.open = sctpprobe_open,
.read = sctpprobe_read,
.llseek = noop_llseek,
};
static enum sctp_disposition jsctp_sf_eat_sack(
struct net *net,
const struct sctp_endpoint *ep,
const struct sctp_association *asoc,
const union sctp_subtype type,
void *arg,
struct sctp_cmd_seq *commands)
{
struct sctp_chunk *chunk = arg;
struct sk_buff *skb = chunk->skb;
struct sctp_transport *sp;
static __u32 lcwnd = 0;
struct timespec64 now;
sp = asoc->peer.primary_path;
if (((port == 0 && fwmark == 0) ||
asoc->peer.port == port ||
ep->base.bind_addr.port == port ||
(fwmark > 0 && skb->mark == fwmark)) &&
(full || sp->cwnd != lcwnd)) {
lcwnd = sp->cwnd;
ktime_get_ts64(&now);
now = timespec64_sub(now, sctpw.tstart);
printl("%lu.%06lu ", (unsigned long) now.tv_sec,
(unsigned long) now.tv_nsec / NSEC_PER_USEC);
printl("%p %5d %5d %5d %8d %5d ", asoc,
ep->base.bind_addr.port, asoc->peer.port,
asoc->pathmtu, asoc->peer.rwnd, asoc->unack_data);
list_for_each_entry(sp, &asoc->peer.transport_addr_list,
transports) {
if (sp == asoc->peer.primary_path)
printl("*");
printl("%pISc %2u %8u %8u %8u %8u %8u ",
&sp->ipaddr, sp->state, sp->cwnd, sp->ssthresh,
sp->flight_size, sp->partial_bytes_acked,
sp->pathmtu);
}
printl("\n");
}
jprobe_return();
return 0;
}
static struct jprobe sctp_recv_probe = {
.kp = {
.symbol_name = "sctp_sf_eat_sack_6_2",
},
.entry = jsctp_sf_eat_sack,
};
static __init int sctp_setup_jprobe(void)
{
int ret = register_jprobe(&sctp_recv_probe);
if (ret) {
if (request_module("sctp"))
goto out;
ret = register_jprobe(&sctp_recv_probe);
}
out:
return ret;
}
static __init int sctpprobe_init(void)
{
int ret = -ENOMEM;
/* Warning: if the function signature of sctp_sf_eat_sack_6_2,
* has been changed, you also have to change the signature of
* jsctp_sf_eat_sack, otherwise you end up right here!
*/
BUILD_BUG_ON(__same_type(sctp_sf_eat_sack_6_2,
jsctp_sf_eat_sack) == 0);
init_waitqueue_head(&sctpw.wait);
spin_lock_init(&sctpw.lock);
if (kfifo_alloc(&sctpw.fifo, bufsize, GFP_KERNEL))
return ret;
if (!proc_create(procname, S_IRUSR, init_net.proc_net,
&sctpprobe_fops))
goto free_kfifo;
ret = sctp_setup_jprobe();
if (ret)
goto remove_proc;
pr_info("probe registered (port=%d/fwmark=%u) bufsize=%u\n",
port, fwmark, bufsize);
return 0;
remove_proc:
remove_proc_entry(procname, init_net.proc_net);
free_kfifo:
kfifo_free(&sctpw.fifo);
return ret;
}
static __exit void sctpprobe_exit(void)
{
kfifo_free(&sctpw.fifo);
remove_proc_entry(procname, init_net.proc_net);
unregister_jprobe(&sctp_recv_probe);
}
module_init(sctpprobe_init);
module_exit(sctpprobe_exit);

7
net/sctp/proc.c
View file

@ -95,7 +95,6 @@ static int sctp_snmp_seq_open(struct inode *inode, struct file *file)
}
static const struct file_operations sctp_snmp_seq_fops = {
.owner = THIS_MODULE,
.open = sctp_snmp_seq_open,
.read = seq_read,
.llseek = seq_lseek,
@ -288,12 +287,8 @@ struct sctp_ht_iter {
static void *sctp_transport_seq_start(struct seq_file *seq, loff_t *pos)
{
struct sctp_ht_iter *iter = seq->private;
int err = sctp_transport_walk_start(&iter->hti);
if (err) {
iter->start_fail = 1;
return ERR_PTR(err);
}
sctp_transport_walk_start(&iter->hti);
iter->start_fail = 0;
return sctp_transport_get_idx(seq_file_net(seq), &iter->hti, *pos);

72
net/sctp/sm_make_chunk.c
View file

@ -228,7 +228,7 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
struct sctp_inithdr init;
union sctp_params addrs;
struct sctp_sock *sp;
__u8 extensions[4];
__u8 extensions[5];
size_t chunksize;
__be16 types[2];
int num_ext = 0;
@ -278,6 +278,11 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
if (sp->adaptation_ind)
chunksize += sizeof(aiparam);
if (sp->strm_interleave) {
extensions[num_ext] = SCTP_CID_I_DATA;
num_ext += 1;
}
chunksize += vparam_len;
/* Account for AUTH related parameters */
@ -392,7 +397,7 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
struct sctp_inithdr initack;
union sctp_params addrs;
struct sctp_sock *sp;
__u8 extensions[4];
__u8 extensions[5];
size_t chunksize;
int num_ext = 0;
int cookie_len;
@ -442,6 +447,11 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
if (sp->adaptation_ind)
chunksize += sizeof(aiparam);
if (asoc->intl_enable) {
extensions[num_ext] = SCTP_CID_I_DATA;
num_ext += 1;
}
if (asoc->peer.auth_capable) {
auth_random = (struct sctp_paramhdr *)asoc->c.auth_random;
chunksize += ntohs(auth_random->length);
@ -711,38 +721,31 @@ nodata:
/* Make a DATA chunk for the given association from the provided
* parameters. However, do not populate the data payload.
*/
struct sctp_chunk *sctp_make_datafrag_empty(struct sctp_association *asoc,
struct sctp_chunk *sctp_make_datafrag_empty(const struct sctp_association *asoc,
const struct sctp_sndrcvinfo *sinfo,
int data_len, __u8 flags, __u16 ssn,
gfp_t gfp)
int len, __u8 flags, gfp_t gfp)
{
struct sctp_chunk *retval;
struct sctp_datahdr dp;
int chunk_len;
/* We assign the TSN as LATE as possible, not here when
* creating the chunk.
*/
dp.tsn = 0;
memset(&dp, 0, sizeof(dp));
dp.ppid = sinfo->sinfo_ppid;
dp.stream = htons(sinfo->sinfo_stream);
dp.ppid = sinfo->sinfo_ppid;
/* Set the flags for an unordered send. */
if (sinfo->sinfo_flags & SCTP_UNORDERED) {
if (sinfo->sinfo_flags & SCTP_UNORDERED)
flags |= SCTP_DATA_UNORDERED;
dp.ssn = 0;
} else
dp.ssn = htons(ssn);
chunk_len = sizeof(dp) + data_len;
retval = sctp_make_data(asoc, flags, chunk_len, gfp);
retval = sctp_make_data(asoc, flags, sizeof(dp) + len, gfp);
if (!retval)
goto nodata;
return NULL;
retval->subh.data_hdr = sctp_addto_chunk(retval, sizeof(dp), &dp);
memcpy(&retval->sinfo, sinfo, sizeof(struct sctp_sndrcvinfo));
nodata:
return retval;
}
@ -1273,7 +1276,6 @@ struct sctp_chunk *sctp_make_auth(const struct sctp_association *asoc)
struct sctp_authhdr auth_hdr;
struct sctp_hmac *hmac_desc;
struct sctp_chunk *retval;
__u8 *hmac;
/* Get the first hmac that the peer told us to use */
hmac_desc = sctp_auth_asoc_get_hmac(asoc);
@ -1292,7 +1294,7 @@ struct sctp_chunk *sctp_make_auth(const struct sctp_association *asoc)
retval->subh.auth_hdr = sctp_addto_chunk(retval, sizeof(auth_hdr),
&auth_hdr);
hmac = skb_put_zero(retval->skb, hmac_desc->hmac_len);
skb_put_zero(retval->skb, hmac_desc->hmac_len);
/* Adjust the chunk header to include the empty MAC */
retval->chunk_hdr->length =
@ -1415,6 +1417,12 @@ static struct sctp_chunk *sctp_make_data(const struct sctp_association *asoc,
return _sctp_make_chunk(asoc, SCTP_CID_DATA, flags, paylen, gfp);
}
struct sctp_chunk *sctp_make_idata(const struct sctp_association *asoc,
__u8 flags, int paylen, gfp_t gfp)
{
return _sctp_make_chunk(asoc, SCTP_CID_I_DATA, flags, paylen, gfp);
}
static struct sctp_chunk *sctp_make_control(const struct sctp_association *asoc,
__u8 type, __u8 flags, int paylen,
gfp_t gfp)
@ -2032,6 +2040,10 @@ static void sctp_process_ext_param(struct sctp_association *asoc,
if (net->sctp.addip_enable)
asoc->peer.asconf_capable = 1;
break;
case SCTP_CID_I_DATA:
if (sctp_sk(asoc->base.sk)->strm_interleave)
asoc->intl_enable = 1;
break;
default:
break;
}
@ -3523,6 +3535,30 @@ struct sctp_chunk *sctp_make_fwdtsn(const struct sctp_association *asoc,
return retval;
}
struct sctp_chunk *sctp_make_ifwdtsn(const struct sctp_association *asoc,
__u32 new_cum_tsn, size_t nstreams,
struct sctp_ifwdtsn_skip *skiplist)
{
struct sctp_chunk *retval = NULL;
struct sctp_ifwdtsn_hdr ftsn_hdr;
size_t hint;
hint = (nstreams + 1) * sizeof(__u32);
retval = sctp_make_control(asoc, SCTP_CID_I_FWD_TSN, 0, hint,
GFP_ATOMIC);
if (!retval)
return NULL;
ftsn_hdr.new_cum_tsn = htonl(new_cum_tsn);
retval->subh.ifwdtsn_hdr =
sctp_addto_chunk(retval, sizeof(ftsn_hdr), &ftsn_hdr);
sctp_addto_chunk(retval, nstreams * sizeof(skiplist[0]), skiplist);
return retval;
}
/* RE-CONFIG 3.1 (RE-CONFIG chunk)
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

51
net/sctp/sm_sideeffect.c
View file

@ -632,7 +632,7 @@ static void sctp_cmd_assoc_failed(struct sctp_cmd_seq *commands,
struct sctp_chunk *abort;
/* Cancel any partial delivery in progress. */
sctp_ulpq_abort_pd(&asoc->ulpq, GFP_ATOMIC);
asoc->stream.si->abort_pd(&asoc->ulpq, GFP_ATOMIC);
if (event_type == SCTP_EVENT_T_CHUNK && subtype.chunk == SCTP_CID_ABORT)
event = sctp_ulpevent_make_assoc_change(asoc, 0, SCTP_COMM_LOST,
@ -878,12 +878,12 @@ static void sctp_cmd_new_state(struct sctp_cmd_seq *cmds,
* successfully completed a connect() call.
*/
if (sctp_state(asoc, ESTABLISHED) && sctp_sstate(sk, CLOSED))
sk->sk_state = SCTP_SS_ESTABLISHED;
inet_sk_set_state(sk, SCTP_SS_ESTABLISHED);
/* Set the RCV_SHUTDOWN flag when a SHUTDOWN is received. */
if (sctp_state(asoc, SHUTDOWN_RECEIVED) &&
sctp_sstate(sk, ESTABLISHED)) {
sk->sk_state = SCTP_SS_CLOSING;
inet_sk_set_state(sk, SCTP_SS_CLOSING);
sk->sk_shutdown |= RCV_SHUTDOWN;
}
}
@ -972,7 +972,7 @@ static void sctp_cmd_process_operr(struct sctp_cmd_seq *cmds,
if (!ev)
return;
sctp_ulpq_tail_event(&asoc->ulpq, ev);
asoc->stream.si->enqueue_event(&asoc->ulpq, ev);
switch (err_hdr->cause) {
case SCTP_ERROR_UNKNOWN_CHUNK:
@ -1007,18 +1007,6 @@ static void sctp_cmd_process_operr(struct sctp_cmd_seq *cmds,
}
}
/* Process variable FWDTSN chunk information. */
static void sctp_cmd_process_fwdtsn(struct sctp_ulpq *ulpq,
struct sctp_chunk *chunk)
{
struct sctp_fwdtsn_skip *skip;
/* Walk through all the skipped SSNs */
sctp_walk_fwdtsn(skip, chunk) {
sctp_ulpq_skip(ulpq, ntohs(skip->stream), ntohs(skip->ssn));
}
}
/* Helper function to remove the association non-primary peer
* transports.
*/
@ -1058,7 +1046,7 @@ static void sctp_cmd_assoc_change(struct sctp_cmd_seq *commands,
asoc->c.sinit_max_instreams,
NULL, GFP_ATOMIC);
if (ev)
sctp_ulpq_tail_event(&asoc->ulpq, ev);
asoc->stream.si->enqueue_event(&asoc->ulpq, ev);
}
/* Helper function to generate an adaptation indication event */
@ -1070,7 +1058,7 @@ static void sctp_cmd_adaptation_ind(struct sctp_cmd_seq *commands,
ev = sctp_ulpevent_make_adaptation_indication(asoc, GFP_ATOMIC);
if (ev)
sctp_ulpq_tail_event(&asoc->ulpq, ev);
asoc->stream.si->enqueue_event(&asoc->ulpq, ev);
}
@ -1368,18 +1356,12 @@ static int sctp_cmd_interpreter(enum sctp_event event_type,
break;
case SCTP_CMD_REPORT_FWDTSN:
/* Move the Cumulattive TSN Ack ahead. */
sctp_tsnmap_skip(&asoc->peer.tsn_map, cmd->obj.u32);
/* purge the fragmentation queue */
sctp_ulpq_reasm_flushtsn(&asoc->ulpq, cmd->obj.u32);
/* Abort any in progress partial delivery. */
sctp_ulpq_abort_pd(&asoc->ulpq, GFP_ATOMIC);
asoc->stream.si->report_ftsn(&asoc->ulpq, cmd->obj.u32);
break;
case SCTP_CMD_PROCESS_FWDTSN:
sctp_cmd_process_fwdtsn(&asoc->ulpq, cmd->obj.chunk);
asoc->stream.si->handle_ftsn(&asoc->ulpq,
cmd->obj.chunk);
break;
case SCTP_CMD_GEN_SACK:
@ -1483,8 +1465,9 @@ static int sctp_cmd_interpreter(enum sctp_event event_type,
pr_debug("%s: sm_sideff: chunk_up:%p, ulpq:%p\n",
__func__, cmd->obj.chunk, &asoc->ulpq);
sctp_ulpq_tail_data(&asoc->ulpq, cmd->obj.chunk,
GFP_ATOMIC);
asoc->stream.si->ulpevent_data(&asoc->ulpq,
cmd->obj.chunk,
GFP_ATOMIC);
break;
case SCTP_CMD_EVENT_ULP:
@ -1492,7 +1475,8 @@ static int sctp_cmd_interpreter(enum sctp_event event_type,
pr_debug("%s: sm_sideff: event_up:%p, ulpq:%p\n",
__func__, cmd->obj.ulpevent, &asoc->ulpq);
sctp_ulpq_tail_event(&asoc->ulpq, cmd->obj.ulpevent);
asoc->stream.si->enqueue_event(&asoc->ulpq,
cmd->obj.ulpevent);
break;
case SCTP_CMD_REPLY:
@ -1729,12 +1713,13 @@ static int sctp_cmd_interpreter(enum sctp_event event_type,
break;
case SCTP_CMD_PART_DELIVER:
sctp_ulpq_partial_delivery(&asoc->ulpq, GFP_ATOMIC);
asoc->stream.si->start_pd(&asoc->ulpq, GFP_ATOMIC);
break;
case SCTP_CMD_RENEGE:
sctp_ulpq_renege(&asoc->ulpq, cmd->obj.chunk,
GFP_ATOMIC);
asoc->stream.si->renege_events(&asoc->ulpq,
cmd->obj.chunk,
GFP_ATOMIC);
break;
case SCTP_CMD_SETUP_T4:

50
net/sctp/sm_statefuns.c
View file

@ -59,6 +59,9 @@
#include <net/sctp/sm.h>
#include <net/sctp/structs.h>
#define CREATE_TRACE_POINTS
#include <trace/events/sctp.h>
static struct sctp_packet *sctp_abort_pkt_new(
struct net *net,
const struct sctp_endpoint *ep,
@ -3013,7 +3016,7 @@ enum sctp_disposition sctp_sf_eat_data_6_2(struct net *net,
return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
}
if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_data_chunk)))
if (!sctp_chunk_length_valid(chunk, sctp_datachk_len(&asoc->stream)))
return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
commands);
@ -3034,7 +3037,7 @@ enum sctp_disposition sctp_sf_eat_data_6_2(struct net *net,
case SCTP_IERROR_PROTO_VIOLATION:
return sctp_sf_abort_violation(net, ep, asoc, chunk, commands,
(u8 *)chunk->subh.data_hdr,
sizeof(struct sctp_datahdr));
sctp_datahdr_len(&asoc->stream));
default:
BUG();
}
@ -3133,7 +3136,7 @@ enum sctp_disposition sctp_sf_eat_data_fast_4_4(
return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
}
if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_data_chunk)))
if (!sctp_chunk_length_valid(chunk, sctp_datachk_len(&asoc->stream)))
return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
commands);
@ -3150,7 +3153,7 @@ enum sctp_disposition sctp_sf_eat_data_fast_4_4(
case SCTP_IERROR_PROTO_VIOLATION:
return sctp_sf_abort_violation(net, ep, asoc, chunk, commands,
(u8 *)chunk->subh.data_hdr,
sizeof(struct sctp_datahdr));
sctp_datahdr_len(&asoc->stream));
default:
BUG();
}
@ -3219,6 +3222,8 @@ enum sctp_disposition sctp_sf_eat_sack_6_2(struct net *net,
struct sctp_sackhdr *sackh;
__u32 ctsn;
trace_sctp_probe(ep, asoc, chunk);
if (!sctp_vtag_verify(chunk, asoc))
return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
@ -3957,7 +3962,6 @@ enum sctp_disposition sctp_sf_eat_fwd_tsn(struct net *net,
{
struct sctp_fwdtsn_hdr *fwdtsn_hdr;
struct sctp_chunk *chunk = arg;
struct sctp_fwdtsn_skip *skip;
__u16 len;
__u32 tsn;
@ -3971,7 +3975,7 @@ enum sctp_disposition sctp_sf_eat_fwd_tsn(struct net *net,
return sctp_sf_unk_chunk(net, ep, asoc, type, arg, commands);
/* Make sure that the FORWARD_TSN chunk has valid length. */
if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_fwdtsn_chunk)))
if (!sctp_chunk_length_valid(chunk, sctp_ftsnchk_len(&asoc->stream)))
return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
commands);
@ -3990,14 +3994,11 @@ enum sctp_disposition sctp_sf_eat_fwd_tsn(struct net *net,
if (sctp_tsnmap_check(&asoc->peer.tsn_map, tsn) < 0)
goto discard_noforce;
/* Silently discard the chunk if stream-id is not valid */
sctp_walk_fwdtsn(skip, chunk) {
if (ntohs(skip->stream) >= asoc->stream.incnt)
goto discard_noforce;
}
if (!asoc->stream.si->validate_ftsn(chunk))
goto discard_noforce;
sctp_add_cmd_sf(commands, SCTP_CMD_REPORT_FWDTSN, SCTP_U32(tsn));
if (len > sizeof(struct sctp_fwdtsn_hdr))
if (len > sctp_ftsnhdr_len(&asoc->stream))
sctp_add_cmd_sf(commands, SCTP_CMD_PROCESS_FWDTSN,
SCTP_CHUNK(chunk));
@ -4028,7 +4029,6 @@ enum sctp_disposition sctp_sf_eat_fwd_tsn_fast(
{
struct sctp_fwdtsn_hdr *fwdtsn_hdr;
struct sctp_chunk *chunk = arg;
struct sctp_fwdtsn_skip *skip;
__u16 len;
__u32 tsn;
@ -4042,7 +4042,7 @@ enum sctp_disposition sctp_sf_eat_fwd_tsn_fast(
return sctp_sf_unk_chunk(net, ep, asoc, type, arg, commands);
/* Make sure that the FORWARD_TSN chunk has a valid length. */
if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_fwdtsn_chunk)))
if (!sctp_chunk_length_valid(chunk, sctp_ftsnchk_len(&asoc->stream)))
return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
commands);
@ -4061,14 +4061,11 @@ enum sctp_disposition sctp_sf_eat_fwd_tsn_fast(
if (sctp_tsnmap_check(&asoc->peer.tsn_map, tsn) < 0)
goto gen_shutdown;
/* Silently discard the chunk if stream-id is not valid */
sctp_walk_fwdtsn(skip, chunk) {
if (ntohs(skip->stream) >= asoc->stream.incnt)
goto gen_shutdown;
}
if (!asoc->stream.si->validate_ftsn(chunk))
goto gen_shutdown;
sctp_add_cmd_sf(commands, SCTP_CMD_REPORT_FWDTSN, SCTP_U32(tsn));
if (len > sizeof(struct sctp_fwdtsn_hdr))
if (len > sctp_ftsnhdr_len(&asoc->stream))
sctp_add_cmd_sf(commands, SCTP_CMD_PROCESS_FWDTSN,
SCTP_CHUNK(chunk));
@ -6244,14 +6241,12 @@ static int sctp_eat_data(const struct sctp_association *asoc,
struct sctp_chunk *err;
enum sctp_verb deliver;
size_t datalen;
u8 ordered = 0;
u16 ssn, sid;
__u32 tsn;
int tmp;
data_hdr = (struct sctp_datahdr *)chunk->skb->data;
chunk->subh.data_hdr = data_hdr;
skb_pull(chunk->skb, sizeof(*data_hdr));
skb_pull(chunk->skb, sctp_datahdr_len(&asoc->stream));
tsn = ntohl(data_hdr->tsn);
pr_debug("%s: TSN 0x%x\n", __func__, tsn);
@ -6299,7 +6294,7 @@ static int sctp_eat_data(const struct sctp_association *asoc,
* Actually, allow a little bit of overflow (up to a MTU).
*/
datalen = ntohs(chunk->chunk_hdr->length);
datalen -= sizeof(struct sctp_data_chunk);
datalen -= sctp_datachk_len(&asoc->stream);
deliver = SCTP_CMD_CHUNK_ULP;
@ -6394,7 +6389,6 @@ static int sctp_eat_data(const struct sctp_association *asoc,
SCTP_INC_STATS(net, SCTP_MIB_INORDERCHUNKS);
if (chunk->asoc)
chunk->asoc->stats.iodchunks++;
ordered = 1;
}
/* RFC 2960 6.5 Stream Identifier and Stream Sequence Number
@ -6405,8 +6399,7 @@ static int sctp_eat_data(const struct sctp_association *asoc,
* with cause set to "Invalid Stream Identifier" (See Section 3.3.10)
* and discard the DATA chunk.
*/
sid = ntohs(data_hdr->stream);
if (sid >= asoc->stream.incnt) {
if (ntohs(data_hdr->stream) >= asoc->stream.incnt) {
/* Mark tsn as received even though we drop it */
sctp_add_cmd_sf(commands, SCTP_CMD_REPORT_TSN, SCTP_U32(tsn));
@ -6427,8 +6420,7 @@ static int sctp_eat_data(const struct sctp_association *asoc,
* SSN is smaller then the next expected one. If it is, it wrapped
* and is invalid.
*/
ssn = ntohs(data_hdr->ssn);
if (ordered && SSN_lt(ssn, sctp_ssn_peek(&asoc->stream, in, sid)))
if (!asoc->stream.si->validate_data(chunk))
return SCTP_IERROR_PROTO_VIOLATION;
/* Send the data up to the user. Note: Schedule the

5
net/sctp/sm_statetable.c
View file

@ -985,11 +985,14 @@ static const struct sctp_sm_table_entry *sctp_chunk_event_lookup(
if (state > SCTP_STATE_MAX)
return &bug;
if (cid == SCTP_CID_I_DATA)
cid = SCTP_CID_DATA;
if (cid <= SCTP_CID_BASE_MAX)
return &chunk_event_table[cid][state];
if (net->sctp.prsctp_enable) {
if (cid == SCTP_CID_FWD_TSN)
if (cid == SCTP_CID_FWD_TSN || cid == SCTP_CID_I_FWD_TSN)
return &prsctp_chunk_event_table[0][state];
}

160
net/sctp/socket.c
View file

@ -201,6 +201,22 @@ static void sctp_for_each_tx_datachunk(struct sctp_association *asoc,
cb(chunk);
}
static void sctp_for_each_rx_skb(struct sctp_association *asoc, struct sock *sk,
void (*cb)(struct sk_buff *, struct sock *))
{
struct sk_buff *skb, *tmp;
sctp_skb_for_each(skb, &asoc->ulpq.lobby, tmp)
cb(skb, sk);
sctp_skb_for_each(skb, &asoc->ulpq.reasm, tmp)
cb(skb, sk);
sctp_skb_for_each(skb, &asoc->ulpq.reasm_uo, tmp)
cb(skb, sk);
}
/* Verify that this is a valid address. */
static inline int sctp_verify_addr(struct sock *sk, union sctp_addr *addr,
int len)
@ -1489,7 +1505,7 @@ static void sctp_close(struct sock *sk, long timeout)
lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
sk->sk_shutdown = SHUTDOWN_MASK;
sk->sk_state = SCTP_SS_CLOSING;
inet_sk_set_state(sk, SCTP_SS_CLOSING);
ep = sctp_sk(sk)->ep;
@ -1515,6 +1531,7 @@ static void sctp_close(struct sock *sk, long timeout)
if (data_was_unread || !skb_queue_empty(&asoc->ulpq.lobby) ||
!skb_queue_empty(&asoc->ulpq.reasm) ||
!skb_queue_empty(&asoc->ulpq.reasm_uo) ||
(sock_flag(sk, SOCK_LINGER) && !sk->sk_lingertime)) {
struct sctp_chunk *chunk;
@ -1969,7 +1986,20 @@ static int sctp_sendmsg(struct sock *sk, struct msghdr *msg, size_t msg_len)
if (err < 0)
goto out_free;
wait_connect = true;
/* If stream interleave is enabled, wait_connect has to be
* done earlier than data enqueue, as it needs to make data
* or idata according to asoc->intl_enable which is set
* after connection is done.
*/
if (sctp_sk(asoc->base.sk)->strm_interleave) {
timeo = sock_sndtimeo(sk, 0);
err = sctp_wait_for_connect(asoc, &timeo);
if (err)
goto out_unlock;
} else {
wait_connect = true;
}
pr_debug("%s: we associated primitively\n", __func__);
}
@ -2248,7 +2278,7 @@ static int sctp_setsockopt_events(struct sock *sk, char __user *optval,
if (!event)
return -ENOMEM;
sctp_ulpq_tail_event(&asoc->ulpq, event);
asoc->stream.si->enqueue_event(&asoc->ulpq, event);
}
}
@ -3147,7 +3177,7 @@ static int sctp_setsockopt_maxseg(struct sock *sk, char __user *optval, unsigned
if (val == 0) {
val = asoc->pathmtu - sp->pf->af->net_header_len;
val -= sizeof(struct sctphdr) +
sizeof(struct sctp_data_chunk);
sctp_datachk_len(&asoc->stream);
}
asoc->user_frag = val;
asoc->frag_point = sctp_frag_point(asoc, asoc->pathmtu);
@ -3317,7 +3347,10 @@ static int sctp_setsockopt_fragment_interleave(struct sock *sk,
if (get_user(val, (int __user *)optval))
return -EFAULT;
sctp_sk(sk)->frag_interleave = (val == 0) ? 0 : 1;
sctp_sk(sk)->frag_interleave = !!val;
if (!sctp_sk(sk)->frag_interleave)
sctp_sk(sk)->strm_interleave = 0;
return 0;
}
@ -4000,6 +4033,40 @@ out:
return retval;
}
static int sctp_setsockopt_interleaving_supported(struct sock *sk,
char __user *optval,
unsigned int optlen)
{
struct sctp_sock *sp = sctp_sk(sk);
struct net *net = sock_net(sk);
struct sctp_assoc_value params;
int retval = -EINVAL;
if (optlen < sizeof(params))
goto out;
optlen = sizeof(params);
if (copy_from_user(&params, optval, optlen)) {
retval = -EFAULT;
goto out;
}
if (params.assoc_id)
goto out;
if (!net->sctp.intl_enable || !sp->frag_interleave) {
retval = -EPERM;
goto out;
}
sp->strm_interleave = !!params.assoc_value;
retval = 0;
out:
return retval;
}
/* API 6.2 setsockopt(), getsockopt()
*
* Applications use setsockopt() and getsockopt() to set or retrieve
@ -4187,6 +4254,10 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname,
case SCTP_STREAM_SCHEDULER_VALUE:
retval = sctp_setsockopt_scheduler_value(sk, optval, optlen);
break;
case SCTP_INTERLEAVING_SUPPORTED:
retval = sctp_setsockopt_interleaving_supported(sk, optval,
optlen);
break;
default:
retval = -ENOPROTOOPT;
break;
@ -4563,7 +4634,7 @@ static void sctp_shutdown(struct sock *sk, int how)
if (how & SEND_SHUTDOWN && !list_empty(&ep->asocs)) {
struct sctp_association *asoc;
sk->sk_state = SCTP_SS_CLOSING;
inet_sk_set_state(sk, SCTP_SS_CLOSING);
asoc = list_entry(ep->asocs.next,
struct sctp_association, asocs);
sctp_primitive_SHUTDOWN(net, asoc, NULL);
@ -4657,20 +4728,11 @@ int sctp_get_sctp_info(struct sock *sk, struct sctp_association *asoc,
EXPORT_SYMBOL_GPL(sctp_get_sctp_info);
/* use callback to avoid exporting the core structure */
int sctp_transport_walk_start(struct rhashtable_iter *iter)
void sctp_transport_walk_start(struct rhashtable_iter *iter)
{
int err;
rhltable_walk_enter(&sctp_transport_hashtable, iter);
err = rhashtable_walk_start(iter);
if (err && err != -EAGAIN) {
rhashtable_walk_stop(iter);
rhashtable_walk_exit(iter);
return err;
}
return 0;
rhashtable_walk_start(iter);
}
void sctp_transport_walk_stop(struct rhashtable_iter *iter)
@ -4764,9 +4826,8 @@ int sctp_for_each_transport(int (*cb)(struct sctp_transport *, void *),
int ret;
again:
ret = sctp_transport_walk_start(&hti);
if (ret)
return ret;
ret = 0;
sctp_transport_walk_start(&hti);
tsp = sctp_transport_get_idx(net, &hti, *pos + 1);
for (; !IS_ERR_OR_NULL(tsp); tsp = sctp_transport_get_next(net, &hti)) {
@ -6965,6 +7026,47 @@ out:
return retval;
}
static int sctp_getsockopt_interleaving_supported(struct sock *sk, int len,
char __user *optval,
int __user *optlen)
{
struct sctp_assoc_value params;
struct sctp_association *asoc;
int retval = -EFAULT;
if (len < sizeof(params)) {
retval = -EINVAL;
goto out;
}
len = sizeof(params);
if (copy_from_user(&params, optval, len))
goto out;
asoc = sctp_id2assoc(sk, params.assoc_id);
if (asoc) {
params.assoc_value = asoc->intl_enable;
} else if (!params.assoc_id) {
struct sctp_sock *sp = sctp_sk(sk);
params.assoc_value = sp->strm_interleave;
} else {
retval = -EINVAL;
goto out;
}
if (put_user(len, optlen))
goto out;
if (copy_to_user(optval, &params, len))
goto out;
retval = 0;
out:
return retval;
}
static int sctp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
@ -7155,6 +7257,10 @@ static int sctp_getsockopt(struct sock *sk, int level, int optname,
retval = sctp_getsockopt_scheduler_value(sk, len, optval,
optlen);
break;
case SCTP_INTERLEAVING_SUPPORTED:
retval = sctp_getsockopt_interleaving_supported(sk, len, optval,
optlen);
break;
default:
retval = -ENOPROTOOPT;
break;
@ -7389,13 +7495,13 @@ static int sctp_listen_start(struct sock *sk, int backlog)
* sockets.
*
*/
sk->sk_state = SCTP_SS_LISTENING;
inet_sk_set_state(sk, SCTP_SS_LISTENING);
if (!ep->base.bind_addr.port) {
if (sctp_autobind(sk))
return -EAGAIN;
} else {
if (sctp_get_port(sk, inet_sk(sk)->inet_num)) {
sk->sk_state = SCTP_SS_CLOSED;
inet_sk_set_state(sk, SCTP_SS_CLOSED);
return -EADDRINUSE;
}
}
@ -8388,11 +8494,7 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
}
sctp_skb_for_each(skb, &assoc->ulpq.reasm, tmp)
sctp_skb_set_owner_r_frag(skb, newsk);
sctp_skb_for_each(skb, &assoc->ulpq.lobby, tmp)
sctp_skb_set_owner_r_frag(skb, newsk);
sctp_for_each_rx_skb(assoc, newsk, sctp_skb_set_owner_r_frag);
/* Set the type of socket to indicate that it is peeled off from the
* original UDP-style socket or created with the accept() call on a
@ -8418,10 +8520,10 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
* is called, set RCV_SHUTDOWN flag.
*/
if (sctp_state(assoc, CLOSED) && sctp_style(newsk, TCP)) {
newsk->sk_state = SCTP_SS_CLOSED;
inet_sk_set_state(newsk, SCTP_SS_CLOSED);
newsk->sk_shutdown |= RCV_SHUTDOWN;
} else {
newsk->sk_state = SCTP_SS_ESTABLISHED;
inet_sk_set_state(newsk, SCTP_SS_ESTABLISHED);
}
release_sock(newsk);

47
net/sctp/stream.c
View file

@ -167,6 +167,7 @@ int sctp_stream_init(struct sctp_stream *stream, __u16 outcnt, __u16 incnt,
sched->init(stream);
in:
sctp_stream_interleave_init(stream);
if (!incnt)
goto out;
@ -213,11 +214,13 @@ void sctp_stream_clear(struct sctp_stream *stream)
{
int i;
for (i = 0; i < stream->outcnt; i++)
stream->out[i].ssn = 0;
for (i = 0; i < stream->outcnt; i++) {
stream->out[i].mid = 0;
stream->out[i].mid_uo = 0;
}
for (i = 0; i < stream->incnt; i++)
stream->in[i].ssn = 0;
stream->in[i].mid = 0;
}
void sctp_stream_update(struct sctp_stream *stream, struct sctp_stream *new)
@ -604,10 +607,10 @@ struct sctp_chunk *sctp_process_strreset_outreq(
}
for (i = 0; i < nums; i++)
stream->in[ntohs(str_p[i])].ssn = 0;
stream->in[ntohs(str_p[i])].mid = 0;
} else {
for (i = 0; i < stream->incnt; i++)
stream->in[i].ssn = 0;
stream->in[i].mid = 0;
}
result = SCTP_STRRESET_PERFORMED;
@ -751,8 +754,7 @@ struct sctp_chunk *sctp_process_strreset_tsnreq(
* performed.
*/
max_tsn_seen = sctp_tsnmap_get_max_tsn_seen(&asoc->peer.tsn_map);
sctp_ulpq_reasm_flushtsn(&asoc->ulpq, max_tsn_seen);
sctp_ulpq_abort_pd(&asoc->ulpq, GFP_ATOMIC);
asoc->stream.si->report_ftsn(&asoc->ulpq, max_tsn_seen);
/* G1: Compute an appropriate value for the Receiver's Next TSN -- the
* TSN that the peer should use to send the next DATA chunk. The
@ -781,10 +783,12 @@ struct sctp_chunk *sctp_process_strreset_tsnreq(
/* G5: The next expected and outgoing SSNs MUST be reset to 0 for all
* incoming and outgoing streams.
*/
for (i = 0; i < stream->outcnt; i++)
stream->out[i].ssn = 0;
for (i = 0; i < stream->outcnt; i++) {
stream->out[i].mid = 0;
stream->out[i].mid_uo = 0;
}
for (i = 0; i < stream->incnt; i++)
stream->in[i].ssn = 0;
stream->in[i].mid = 0;
result = SCTP_STRRESET_PERFORMED;
@ -974,11 +978,15 @@ struct sctp_chunk *sctp_process_strreset_resp(
if (result == SCTP_STRRESET_PERFORMED) {
if (nums) {
for (i = 0; i < nums; i++)
stream->out[ntohs(str_p[i])].ssn = 0;
for (i = 0; i < nums; i++) {
stream->out[ntohs(str_p[i])].mid = 0;
stream->out[ntohs(str_p[i])].mid_uo = 0;
}
} else {
for (i = 0; i < stream->outcnt; i++)
stream->out[i].ssn = 0;
for (i = 0; i < stream->outcnt; i++) {
stream->out[i].mid = 0;
stream->out[i].mid_uo = 0;
}
}
flags = SCTP_STREAM_RESET_OUTGOING_SSN;
@ -1021,8 +1029,7 @@ struct sctp_chunk *sctp_process_strreset_resp(
&asoc->peer.tsn_map);
LIST_HEAD(temp);
sctp_ulpq_reasm_flushtsn(&asoc->ulpq, mtsn);
sctp_ulpq_abort_pd(&asoc->ulpq, GFP_ATOMIC);
asoc->stream.si->report_ftsn(&asoc->ulpq, mtsn);
sctp_tsnmap_init(&asoc->peer.tsn_map,
SCTP_TSN_MAP_INITIAL,
@ -1040,10 +1047,12 @@ struct sctp_chunk *sctp_process_strreset_resp(
asoc->ctsn_ack_point = asoc->next_tsn - 1;
asoc->adv_peer_ack_point = asoc->ctsn_ack_point;
for (i = 0; i < stream->outcnt; i++)
stream->out[i].ssn = 0;
for (i = 0; i < stream->outcnt; i++) {
stream->out[i].mid = 0;
stream->out[i].mid_uo = 0;
}
for (i = 0; i < stream->incnt; i++)
stream->in[i].ssn = 0;
stream->in[i].mid = 0;
}
for (i = 0; i < stream->outcnt; i++)

1334
net/sctp/stream_interleave.c Normal file
View file

File diff suppressed because it is too large Load diff

3
net/sctp/stream_sched.c
View file

@ -242,7 +242,8 @@ int sctp_sched_get_value(struct sctp_association *asoc, __u16 sid,
void sctp_sched_dequeue_done(struct sctp_outq *q, struct sctp_chunk *ch)
{
if (!list_is_last(&ch->frag_list, &ch->msg->chunks)) {
if (!list_is_last(&ch->frag_list, &ch->msg->chunks) &&
!q->asoc->intl_enable) {
struct sctp_stream_out *sout;
__u16 sid;

7
net/sctp/sysctl.c
View file

@ -288,6 +288,13 @@ static struct ctl_table sctp_net_table[] = {
.mode = 0644,
.proc_handler = proc_sctp_do_auth,
},
{
.procname = "intl_enable",
.data = &init_net.sctp.intl_enable,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "addr_scope_policy",
.data = &init_net.sctp.scope_policy,

15
net/sctp/ulpevent.c
View file

@ -443,8 +443,8 @@ struct sctp_ulpevent *sctp_ulpevent_make_send_failed(
goto fail;
/* Pull off the common chunk header and DATA header. */
skb_pull(skb, sizeof(struct sctp_data_chunk));
len -= sizeof(struct sctp_data_chunk);
skb_pull(skb, sctp_datachk_len(&asoc->stream));
len -= sctp_datachk_len(&asoc->stream);
/* Embed the event fields inside the cloned skb. */
event = sctp_skb2event(skb);
@ -705,8 +705,6 @@ struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(struct sctp_association *asoc,
sctp_ulpevent_receive_data(event, asoc);
event->stream = ntohs(chunk->subh.data_hdr->stream);
event->ssn = ntohs(chunk->subh.data_hdr->ssn);
event->ppid = chunk->subh.data_hdr->ppid;
if (chunk->chunk_hdr->flags & SCTP_DATA_UNORDERED) {
event->flags |= SCTP_UNORDERED;
event->cumtsn = sctp_tsnmap_get_ctsn(&asoc->peer.tsn_map);
@ -732,8 +730,9 @@ fail:
* various events.
*/
struct sctp_ulpevent *sctp_ulpevent_make_pdapi(
const struct sctp_association *asoc, __u32 indication,
gfp_t gfp)
const struct sctp_association *asoc,
__u32 indication, __u32 sid, __u32 seq,
__u32 flags, gfp_t gfp)
{
struct sctp_ulpevent *event;
struct sctp_pdapi_event *pd;
@ -754,7 +753,9 @@ struct sctp_ulpevent *sctp_ulpevent_make_pdapi(
* Currently unused.
*/
pd->pdapi_type = SCTP_PARTIAL_DELIVERY_EVENT;
pd->pdapi_flags = 0;
pd->pdapi_flags = flags;
pd->pdapi_stream = sid;
pd->pdapi_seq = seq;
/* pdapi_length: 32 bits (unsigned integer)
*

23
net/sctp/ulpqueue.c
View file

@ -60,6 +60,7 @@ struct sctp_ulpq *sctp_ulpq_init(struct sctp_ulpq *ulpq,
ulpq->asoc = asoc;
skb_queue_head_init(&ulpq->reasm);
skb_queue_head_init(&ulpq->reasm_uo);
skb_queue_head_init(&ulpq->lobby);
ulpq->pd_mode = 0;
@ -83,6 +84,10 @@ void sctp_ulpq_flush(struct sctp_ulpq *ulpq)
sctp_ulpevent_free(event);
}
while ((skb = __skb_dequeue(&ulpq->reasm_uo)) != NULL) {
event = sctp_skb2event(skb);
sctp_ulpevent_free(event);
}
}
/* Dispose of a ulpqueue. */
@ -104,6 +109,9 @@ int sctp_ulpq_tail_data(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk,
if (!event)
return -ENOMEM;
event->ssn = ntohs(chunk->subh.data_hdr->ssn);
event->ppid = chunk->subh.data_hdr->ppid;
/* Do reassembly if needed. */
event = sctp_ulpq_reasm(ulpq, event);
@ -328,9 +336,10 @@ static void sctp_ulpq_store_reasm(struct sctp_ulpq *ulpq,
* payload was fragmented on the way and ip had to reassemble them.
* We add the rest of skb's to the first skb's fraglist.
*/
static struct sctp_ulpevent *sctp_make_reassembled_event(struct net *net,
struct sk_buff_head *queue, struct sk_buff *f_frag,
struct sk_buff *l_frag)
struct sctp_ulpevent *sctp_make_reassembled_event(struct net *net,
struct sk_buff_head *queue,
struct sk_buff *f_frag,
struct sk_buff *l_frag)
{
struct sk_buff *pos;
struct sk_buff *new = NULL;
@ -853,7 +862,7 @@ static struct sctp_ulpevent *sctp_ulpq_order(struct sctp_ulpq *ulpq,
struct sctp_stream *stream;
/* Check if this message needs ordering. */
if (SCTP_DATA_UNORDERED & event->msg_flags)
if (event->msg_flags & SCTP_DATA_UNORDERED)
return event;
/* Note: The stream ID must be verified before this routine. */
@ -974,8 +983,8 @@ void sctp_ulpq_skip(struct sctp_ulpq *ulpq, __u16 sid, __u16 ssn)
sctp_ulpq_reap_ordered(ulpq, sid);
}
static __u16 sctp_ulpq_renege_list(struct sctp_ulpq *ulpq,
struct sk_buff_head *list, __u16 needed)
__u16 sctp_ulpq_renege_list(struct sctp_ulpq *ulpq, struct sk_buff_head *list,
__u16 needed)
{
__u16 freed = 0;
__u32 tsn, last_tsn;
@ -1132,7 +1141,7 @@ void sctp_ulpq_abort_pd(struct sctp_ulpq *ulpq, gfp_t gfp)
&sctp_sk(sk)->subscribe))
ev = sctp_ulpevent_make_pdapi(ulpq->asoc,
SCTP_PARTIAL_DELIVERY_ABORTED,
gfp);
0, 0, 0, gfp);
if (ev)
__skb_queue_tail(&sk->sk_receive_queue, sctp_event2skb(ev));