[PATCH RFC net-next 0/2] improve MPTCP fallback
by Davide Caratti
- patch 1 refactors fallback code to allow infinite mapping
- patch 2 fixes a race between recvmsg() and shutdown(), it was there
since earlier implementations but it became almost systematic
in case of fallback, after patch 1 was applied
Davide Caratti (1):
net: mptcp: improve fallback to TCP
Paolo Abeni (1):
mptcp: fix races between shutdown and recvmsg.
net/mptcp/options.c | 9 +++-
net/mptcp/protocol.c | 125 ++++++++++++++++---------------------------
net/mptcp/protocol.h | 14 +++++
net/mptcp/subflow.c | 63 +++++++++++++++-------
4 files changed, 112 insertions(+), 99 deletions(-)
--
2.26.2
7 months, 3 weeks
[PATCH v2 mptcp-next] mptcp: add receive buffer auto-tuning
by Florian Westphal
When mptcp is used, userspace doesn't read from the tcp (subflow)
socket but from the parent (mptcp) socket receive queue.
skbs are moved from the subflow socket to the mptcp rx queue either from
'data_ready' callback (if mptcp socket can be locked), a work queue, or
the socket receive function.
This means tcp_rcv_space_adjust() is never called and thus no receive
buffer size auto-tuning is done.
An earlier (not merged) patch added tcp_rcv_space_adjust() calls to the
function that moves skbs from subflow to mptcp socket.
While this enabled autotuning, it also meant tuning was done even if
userspace was reading the mptcp socket very slowly.
This adds mptcp_rcv_space_adjust() and calls it after userspace has
read data from the mptcp socket rx queue.
Its very similar to tcp_rcv_space_adjust, with two differences:
1. The rtt estimate is the largest one observed on a subflow
2. The rcvbuf size and window clamp of all subflows is adjusted
to the mptcp-level rcvbuf.
Otherwise, we get spurious drops at tcp (subflow) socket level if
the skbs are not moved to the mptcp socket fast enough and reduced
throughput..
Before:
time mptcp_connect.sh -t -f $((4*1024*1024)) -d 300 -l 0.01% -r 0 -e "" -m mmap
[..]
ns4 MPTCP -> ns3 (10.0.3.2:10108 ) MPTCP (duration 40562ms) [ OK ]
ns4 MPTCP -> ns3 (10.0.3.2:10109 ) TCP (duration 5415ms) [ OK ]
ns4 TCP -> ns3 (10.0.3.2:10110 ) MPTCP (duration 5413ms) [ OK ]
ns4 MPTCP -> ns3 (dead:beef:3::2:10111) MPTCP (duration 41331ms) [ OK ]
ns4 MPTCP -> ns3 (dead:beef:3::2:10112) TCP (duration 5415ms) [ OK ]
ns4 TCP -> ns3 (dead:beef:3::2:10113) MPTCP (duration 5714ms) [ OK ]
Time: 846 seconds
After:
ns4 MPTCP -> ns3 (10.0.3.2:10108 ) MPTCP (duration 5417ms) [ OK ]
ns4 MPTCP -> ns3 (10.0.3.2:10109 ) TCP (duration 5429ms) [ OK ]
ns4 TCP -> ns3 (10.0.3.2:10110 ) MPTCP (duration 5418ms) [ OK ]
ns4 MPTCP -> ns3 (dead:beef:3::2:10111) MPTCP (duration 5423ms) [ OK ]
ns4 MPTCP -> ns3 (dead:beef:3::2:10112) TCP (duration 5715ms) [ OK ]
ns4 TCP -> ns3 (dead:beef:3::2:10113) MPTCP (duration 5415ms) [ OK ]
Time: 275 seconds
Signed-off-by: Florian Westphal <fw(a)strlen.de>
---
changes in v2:
- cache last rtt_us value used
- don't store seq value
- reset 'copied' to 0 when starting
new measurement to simplify adjust function.
- make sure space.space is not inited to 0, else div-by-0 occurs
net/mptcp/protocol.c | 124 ++++++++++++++++++++++++++++++++++++++++---
net/mptcp/protocol.h | 6 +++
2 files changed, 123 insertions(+), 7 deletions(-)
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index b2c8b57e7942..3827e4004877 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -207,13 +207,6 @@ static bool __mptcp_move_skbs_from_subflow(struct mptcp_sock *msk,
return false;
}
- if (!(sk->sk_userlocks & SOCK_RCVBUF_LOCK)) {
- int rcvbuf = max(ssk->sk_rcvbuf, sk->sk_rcvbuf);
-
- if (rcvbuf > sk->sk_rcvbuf)
- sk->sk_rcvbuf = rcvbuf;
- }
-
tp = tcp_sk(ssk);
do {
u32 map_remaining, offset;
@@ -928,6 +921,100 @@ static int __mptcp_recvmsg_mskq(struct mptcp_sock *msk,
return copied;
}
+/* receive buffer autotuning. See tcp_rcv_space_adjust for more information.
+ *
+ * Only difference: Use highest rtt estimate of the subflows in use.
+ */
+static void mptcp_rcv_space_adjust(struct mptcp_sock *msk, int copied)
+{
+ struct mptcp_subflow_context *subflow;
+ struct sock *sk = (struct sock *)msk;
+ u32 time, advmss = 1;
+ u64 rtt_us, mstamp;
+
+ sock_owned_by_me(sk);
+
+ if (copied <= 0)
+ return;
+
+ msk->rcvq_space.copied += copied;
+
+ mstamp = div_u64(tcp_clock_ns(), NSEC_PER_USEC);
+ time = tcp_stamp_us_delta(mstamp, msk->rcvq_space.time);
+
+ rtt_us = msk->rcvq_space.rtt_us;
+ if (rtt_us && time < (rtt_us >> 3))
+ return;
+
+ rtt_us = 0;
+ mptcp_for_each_subflow(msk, subflow) {
+ const struct tcp_sock *tp;
+ u64 sf_rtt_us;
+ u32 sf_advmss;
+
+ tp = tcp_sk(mptcp_subflow_tcp_sock(subflow));
+
+ sf_rtt_us = READ_ONCE(tp->rcv_rtt_est.rtt_us);
+ sf_advmss = READ_ONCE(tp->advmss);
+
+ rtt_us = max(sf_rtt_us, rtt_us);
+ advmss = max(sf_advmss, advmss);
+ }
+
+ msk->rcvq_space.rtt_us = rtt_us;
+ if (time < (rtt_us >> 3) || rtt_us == 0)
+ return;
+
+ if (msk->rcvq_space.copied <= msk->rcvq_space.space)
+ goto new_measure;
+
+ if (sock_net(sk)->ipv4.sysctl_tcp_moderate_rcvbuf &&
+ !(sk->sk_userlocks & SOCK_RCVBUF_LOCK)) {
+ int rcvmem, rcvbuf;
+ u64 rcvwin, grow;
+
+ rcvwin = ((u64)msk->rcvq_space.copied << 1) + 16 * advmss;
+
+ grow = rcvwin *(msk->rcvq_space.copied - msk->rcvq_space.space);
+
+ do_div(grow, msk->rcvq_space.space);
+ rcvwin += (grow << 1);
+
+ rcvmem = SKB_TRUESIZE(advmss + MAX_TCP_HEADER);
+ while (tcp_win_from_space(sk, rcvmem) < advmss)
+ rcvmem += 128;
+
+ do_div(rcvwin, advmss);
+ rcvbuf = min_t(u64, rcvwin * rcvmem,
+ sock_net(sk)->ipv4.sysctl_tcp_rmem[2]);
+
+ if (rcvbuf > sk->sk_rcvbuf) {
+ u32 window_clamp;
+
+ window_clamp = tcp_win_from_space(sk, rcvbuf);
+ WRITE_ONCE(sk->sk_rcvbuf, rcvbuf);
+
+ /* Make subflows follow along. If we do not do this, we
+ * get drops at subflow level if skbs can't be moved to
+ * the mptcp rx queue fast enough (announced rcv_win can
+ * exceed ssk->sk_rcvbuf).
+ */
+ mptcp_for_each_subflow(msk, subflow) {
+ struct sock *ssk;
+
+ ssk = mptcp_subflow_tcp_sock(subflow);
+ WRITE_ONCE(ssk->sk_rcvbuf, rcvbuf);
+ tcp_sk(ssk)->window_clamp = window_clamp;
+ }
+ }
+ }
+
+ msk->rcvq_space.space = msk->rcvq_space.copied;
+new_measure:
+ msk->rcvq_space.copied = 0;
+ msk->rcvq_space.time = mstamp;
+}
+
static bool __mptcp_move_skbs(struct mptcp_sock *msk)
{
unsigned int moved = 0;
@@ -1050,6 +1137,8 @@ static int mptcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
set_bit(MPTCP_DATA_READY, &msk->flags);
}
out_err:
+ mptcp_rcv_space_adjust(msk, copied);
+
release_sock(sk);
return copied;
}
@@ -1280,6 +1369,7 @@ static int mptcp_init_sock(struct sock *sk)
return ret;
sk_sockets_allocated_inc(sk);
+ sk->sk_rcvbuf = sock_net(sk)->ipv4.sysctl_tcp_rmem[1];
sk->sk_sndbuf = sock_net(sk)->ipv4.sysctl_tcp_wmem[2];
return 0;
@@ -1475,6 +1565,23 @@ struct sock *mptcp_sk_clone(const struct sock *sk,
return nsk;
}
+static void mptcp_rcv_space_init(struct mptcp_sock *msk, struct sock *ssk)
+{
+ struct tcp_sock *tp = tcp_sk(ssk);
+
+ msk->rcvq_space.copied = 0;
+ msk->rcvq_space.rtt_us = 0;
+
+ tcp_mstamp_refresh(tp);
+ msk->rcvq_space.time = tp->tcp_mstamp;
+
+ /* initial rcv_space offering made to peer */
+ msk->rcvq_space.space = min_t(u32, tp->rcv_wnd,
+ TCP_INIT_CWND * tp->advmss);
+ if (msk->rcvq_space.space == 0)
+ msk->rcvq_space.space = TCP_INIT_CWND * TCP_MSS_DEFAULT;
+}
+
static struct sock *mptcp_accept(struct sock *sk, int flags, int *err,
bool kern)
{
@@ -1524,6 +1631,7 @@ static struct sock *mptcp_accept(struct sock *sk, int flags, int *err,
list_add(&subflow->node, &msk->conn_list);
inet_sk_state_store(newsk, TCP_ESTABLISHED);
+ mptcp_rcv_space_init(msk, ssk);
bh_unlock_sock(new_mptcp_sock);
__MPTCP_INC_STATS(sock_net(sk), MPTCP_MIB_MPCAPABLEPASSIVEACK);
@@ -1678,6 +1786,8 @@ void mptcp_finish_connect(struct sock *ssk)
atomic64_set(&msk->snd_una, msk->write_seq);
mptcp_pm_new_connection(msk, 0);
+
+ mptcp_rcv_space_init(msk, ssk);
}
static void mptcp_sock_graft(struct sock *sk, struct socket *parent)
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index 809687d3f410..5ac157e007e9 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -210,6 +210,12 @@ struct mptcp_sock {
struct socket *subflow; /* outgoing connect/listener/!mp_capable */
struct sock *first;
struct mptcp_pm_data pm;
+ struct {
+ u32 space; /* bytes copied in last measurement window */
+ u32 copied; /* bytes copied in this measurement window */
+ u64 time; /* start time of measurement window */
+ u64 rtt_us; /* last maximum rtt of subflows */
+ } rcvq_space;
};
#define mptcp_for_each_subflow(__msk, __subflow) \
--
2.26.2
7 months, 3 weeks
Crashers on netnext with apache-benchmark
by Christoph Paasch
Hello,
I have a test where I use apachebenchmark with 100 concurrent clients (-c 100),
on a small file (1KB). This test stresses connection establishment,... a
lot, because often you will have a SYN+MP_JOIN in-flight while the
connection is already in the process of being torn down.
In this test, the client is out-of-tree and server is netnext d52caf0404e6
+ a patch to force-enable MPTCP on all connections.
I am not getting very far and have different kinds of panics:
[ 142.001017] ------------[ cut here ]------------
[ 142.002079] refcount_t: saturated; leaking memory.
[ 142.002226] WARNING: CPU: 0 PID: 1400 at lib/refcount.c:22 refcount_warn_saturate+0x65/0x110
[ 142.003085] refcount_t: addition on 0; use-after-free.
[...]
[ 142.004121] RIP: 0010:refcount_warn_saturate+0x65/0x110
[ 142.004125] Code: 00 0f 84 b1 00 00 00 5b 5d c3 85 db 74 40 80 3d 50 02 8d 01 00 75 f0 48 c7 c7 20 62 39 82 c6 05 40 02 8d 01 01 e8 d0 64 aa ff <0f> 0b eb d9 80 3d 2f 02 8d 01 00 75 d0 48 c7 c7 c0 62 39 82 c6 05
[ 142.004130] RSP: 0018:ffff88810d26fb78 EFLAGS: 00010282
[ 142.004138] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
[ 142.004141] RDX: 00000000fffffff8 RSI: 0000000000000004 RDI: ffffed1021a4df61
[ 142.004143] RBP: ffff8880aac11740 R08: ffffffff8120b958 R09: ffffed10236843c9
[ 142.004146] R10: ffff88811b421e43 R11: ffffed10236843c8 R12: ffff8880a1cc0d00
[ 142.004149] R13: ffff88810c273100 R14: ffff8880aac11740 R15: ffff88810669b458
[ 142.004178] mptcp_accept+0x2ca/0x300
[ 142.004213] inet_accept+0xaa/0x3b0
[ 142.004256] mptcp_stream_accept+0x124/0x350
[ 142.004272] __sys_accept4_file+0x260/0x330
[ 142.004324] __sys_accept4+0x6d/0xb0
[ 142.004343] __x64_sys_accept4+0x4b/0x60
[ 142.004353] do_syscall_64+0xc1/0xa10
[ 142.004381] entry_SYSCALL_64_after_hwframe+0x49/0xb3
And another one:
[ 62.586401] ==================================================================
[ 62.588813] BUG: KASAN: use-after-free in inet_twsk_bind_unhash+0x5f/0xe0
[ 62.589975] Write of size 8 at addr ffff88810f155a20 by task ksoftirqd/2/21
[ 62.591194]
[ 62.591485] CPU: 2 PID: 21 Comm: ksoftirqd/2 Kdump: loaded Not tainted 5.7.0-rc6.mptcp #36
[ 62.593067] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
[ 62.595268] Call Trace:
[ 62.595775] dump_stack+0x76/0xa0
[ 62.596448] print_address_description.constprop.0+0x3a/0x60
[ 62.600581] __kasan_report.cold+0x20/0x3b
[ 62.602968] kasan_report+0x38/0x50
[ 62.603561] inet_twsk_bind_unhash+0x5f/0xe0
[ 62.604282] inet_twsk_kill+0x195/0x200
[ 62.604945] inet_twsk_deschedule_put+0x25/0x30
[ 62.605731] tcp_v4_rcv+0xa79/0x15e0
[ 62.607139] ip_protocol_deliver_rcu+0x37/0x270
[ 62.607980] ip_local_deliver_finish+0xb0/0xd0
[ 62.608758] ip_local_deliver+0x1c9/0x1e0
[ 62.611162] ip_sublist_rcv_finish+0x84/0xa0
[ 62.611894] ip_sublist_rcv+0x22c/0x320
[ 62.616143] ip_list_rcv+0x1e4/0x225
[ 62.619427] __netif_receive_skb_list_core+0x439/0x460
[ 62.622771] netif_receive_skb_list_internal+0x3ea/0x570
[ 62.625320] gro_normal_list.part.0+0x14/0x50
[ 62.626088] napi_gro_receive+0x6a/0xb0
[ 62.626787] receive_buf+0x371/0x1d50
[ 62.632092] virtnet_poll+0x2be/0x5b0
[ 62.634099] net_rx_action+0x1ec/0x4c0
[ 62.636132] __do_softirq+0xfc/0x29c
[ 62.638180] run_ksoftirqd+0x15/0x30
[ 62.638787] smpboot_thread_fn+0x1fc/0x380
[ 62.642009] kthread+0x1f1/0x210
[ 62.643478] ret_from_fork+0x35/0x40
[ 62.644094]
[ 62.644371] Allocated by task 1355:
[ 62.644980] save_stack+0x1b/0x40
[ 62.645539] __kasan_kmalloc.constprop.0+0xc2/0xd0
[ 62.646347] kmem_cache_alloc+0xb8/0x190
[ 62.647006] getname_flags+0x6b/0x2b0
[ 62.647627] user_path_at_empty+0x1b/0x40
[ 62.648306] vfs_statx+0xba/0x140
[ 62.648875] __do_sys_newstat+0x8c/0xf0
[ 62.649518] do_syscall_64+0xbc/0x790
[ 62.650199] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 62.651091]
[ 62.651360] Freed by task 1355:
[ 62.651903] save_stack+0x1b/0x40
[ 62.652460] __kasan_slab_free+0x12f/0x180
[ 62.653147] kmem_cache_free+0x87/0x240
[ 62.653795] filename_lookup+0x183/0x250
[ 62.654447] vfs_statx+0xba/0x140
[ 62.655001] __do_sys_newstat+0x8c/0xf0
[ 62.655640] do_syscall_64+0xbc/0x790
[ 62.656246] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 62.657089]
[ 62.657351] The buggy address belongs to the object at ffff88810f155500
which belongs to the cache names_cache of size 4096
[ 62.659420] The buggy address is located 1312 bytes inside of
4096-byte region [ffff88810f155500, ffff88810f156500)
[ 62.661358] The buggy address belongs to the page:
[ 62.662175] page:ffffea00043c5400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 head:ffffea00043c5400 order:3 compound_mapcount:0 compound_pincount:0
[ 62.664523] flags: 0x8000000000010200(slab|head)
[ 62.665342] raw: 8000000000010200 0000000000000000 0000000400000001 ffff88811ac772c0
[ 62.666713] raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000
[ 62.667984] page dumped because: kasan: bad access detected
[ 62.668904]
[ 62.669171] Memory state around the buggy address:
[ 62.669975] ffff88810f155900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 62.671163] ffff88810f155980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 62.672363] >ffff88810f155a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 62.673559] ^
[ 62.674349] ffff88810f155a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 62.675531] ffff88810f155b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 62.676723] ==================================================================
Another thing that was very surprising (looks like a use-after-free-and-realloc):
[ 59.697222] MPTCP: MP_JOIN bad option size
I will try to dig more into these tomorrow, but if anyone has an idea, let
me know :)
Christoph
7 months, 4 weeks
[PATCH net-next] mptcp: fix NULL ptr dereference in MP_JOIN error path
by Paolo Abeni
When token lookup on MP_JOIN 3rd ack fails, the server
socket closes with a reset the incoming child. Such socket
has the 'is_mptcp' flag set, but no msk socket associated
- due to the failed lookup.
While crafting the reset packet mptcp_established_options_mp()
will try to dereference the child's master socket, causing
a NULL ptr dereference.
This change addresses the issue with explicit fallback to
TCP in such error path.
Fixes: 729cd6436f35 ("mptcp: cope better with MP_JOIN failure")
Signed-off-by: Paolo Abeni <pabeni(a)redhat.com>
---
net/mptcp/subflow.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index f3c06b8af92d..493b98a0825c 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -413,6 +413,20 @@ static void subflow_ulp_fallback(struct sock *sk,
tcp_sk(sk)->is_mptcp = 0;
}
+static void subflow_drop_ctx(struct sock *ssk)
+{
+ struct mptcp_subflow_context *ctx = mptcp_subflow_ctx(ssk);
+
+ if (!ctx)
+ return;
+
+ subflow_ulp_fallback(ssk, ctx);
+ if (ctx->conn)
+ sock_put(ctx->conn);
+
+ kfree_rcu(ctx, rcu);
+}
+
static struct sock *subflow_syn_recv_sock(const struct sock *sk,
struct sk_buff *skb,
struct request_sock *req,
@@ -485,10 +499,7 @@ static struct sock *subflow_syn_recv_sock(const struct sock *sk,
if (fallback_is_fatal)
goto dispose_child;
- if (ctx) {
- subflow_ulp_fallback(child, ctx);
- kfree_rcu(ctx, rcu);
- }
+ subflow_drop_ctx(child);
goto out;
}
@@ -537,6 +548,7 @@ static struct sock *subflow_syn_recv_sock(const struct sock *sk,
return child;
dispose_child:
+ subflow_drop_ctx(child);
tcp_rsk(req)->drop_req = true;
tcp_send_active_reset(child, GFP_ATOMIC);
inet_csk_prepare_for_destroy_sock(child);
--
2.21.3
7 months, 4 weeks
Investment
by Dean
Good evening. I am Dean Johnston, a broker working with Access
Wealth Services. I am contacting you because one of my high
profile clients is interested in investing abroad and has asked
me to look for individuals and companies with interesting
business ideas and companies that he can invest in. He wants to
expand his portfolio and has interest in investing a substantial
amount of asset abroad. I got your contact (along with other
contacts) through an online business directory and I thought I'd
contact you to see if you are interested in this opportunity.
Please indicate your interest by replying back to this email.
Once I get your response, I will give you more details and we can
plan a strategy that will be beneficial to all parties.
Best regards
D Johnston
Access Wealth Services
+27319400855
7 months, 4 weeks
Re: Proposal
by Kelsey Cooper
Hi,
Did you get a chance to go through my previous email?
Kindly let me know your target audience (Sectors, Job Titles & Geography) that you wish to target, so that I can get back with the counts, samples and pricing details for your review.
Appreciate your response.
Thanks,
Kelsey Cooper - Marketing Executive
Hi,
Would you like to connect with key decision makers from the below sectors;
Manufacturing, Construction, Education, Retail, Healthcare, Energy, Utilities & Waste Treatment, Transportation, Banking & Finance, Media & Internet, Hospitality, etc.
You can contact them via direct business emails or phone numbers for your sales and marketing initiatives.
We can also provide you contacts from companies currently using Altium
Software.
Kindly let me know the Sectors, Job Titles & Geography that you wish to target, so that I can get back with the samples, counts and more details for your review.
Looking forward to your response.
Thanks,
Kelsey Cooper - Marketing Executive
Stay safe.
Reply back “Pass” for no further emails.
8 months
[PATCH v3 0/4] mptcp: token container refactor
by Paolo Abeni
This series supersede the RTC patch for token refactor. The relevant patch
is unchanged, but this additional bring in some related minor cleanup
(patch 1/4) and KUNIT (!!!) self-tests (4/4). To make things cleaner it also
moves the existing in-kernel tests (crypto) to KUNIT.
only changes from v2 are some comments in patch 2/4 and patch 3/4 rebased.
Paolo Abeni (4):
mptcp: add __init annotation on setup functions
mptcp: refactor token container.
mptcp: move crypto test to KUNIT
mptcp: introduce token KUNIT self-tests
net/mptcp/Kconfig | 19 ++-
net/mptcp/Makefile | 4 +
net/mptcp/crypto.c | 63 +---------
net/mptcp/crypto_test.c | 72 +++++++++++
net/mptcp/pm.c | 2 +-
net/mptcp/pm_netlink.c | 2 +-
net/mptcp/protocol.c | 39 +++---
net/mptcp/protocol.h | 15 ++-
net/mptcp/subflow.c | 12 +-
net/mptcp/token.c | 263 +++++++++++++++++++++++++++++-----------
net/mptcp/token_test.c | 138 +++++++++++++++++++++
11 files changed, 458 insertions(+), 171 deletions(-)
create mode 100644 net/mptcp/crypto_test.c
create mode 100644 net/mptcp/token_test.c
--
2.21.3
8 months
