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cpp-libs
libnice
Commits
8a6bc000
Commit
8a6bc000
authored
Jun 23, 2015
by
Philip Withnall
Committed by
Olivier Crête
Jun 03, 2016
Browse files
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Plain Diff
pseudotcp: Add more debug info on closing down a pseudo-TCP socket
parent
a72a93e5
Changes
1
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Side-by-side
Showing
1 changed file
with
20 additions
and
3 deletions
+20
-3
agent/pseudotcp.c
agent/pseudotcp.c
+20
-3
No files found.
agent/pseudotcp.c
View file @
8a6bc000
...
@@ -968,6 +968,8 @@ pseudo_tcp_socket_notify_clock(PseudoTcpSocket *self)
...
@@ -968,6 +968,8 @@ pseudo_tcp_socket_notify_clock(PseudoTcpSocket *self)
priv
->
rx_rto
,
priv
->
rto_base
,
now
,
(
guint
)
priv
->
dup_acks
);
priv
->
rx_rto
,
priv
->
rto_base
,
now
,
(
guint
)
priv
->
dup_acks
);
if
(
!
transmit
(
self
,
g_queue_peek_head
(
&
priv
->
slist
),
now
))
{
if
(
!
transmit
(
self
,
g_queue_peek_head
(
&
priv
->
slist
),
now
))
{
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"Error transmitting segment. Closing down."
);
closedown
(
self
,
ECONNABORTED
,
CLOSEDOWN_LOCAL
);
closedown
(
self
,
ECONNABORTED
,
CLOSEDOWN_LOCAL
);
return
;
return
;
}
}
...
@@ -988,6 +990,7 @@ pseudo_tcp_socket_notify_clock(PseudoTcpSocket *self)
...
@@ -988,6 +990,7 @@ pseudo_tcp_socket_notify_clock(PseudoTcpSocket *self)
if
((
priv
->
snd_wnd
==
0
)
if
((
priv
->
snd_wnd
==
0
)
&&
(
time_diff
(
priv
->
lastsend
+
priv
->
rx_rto
,
now
)
<=
0
))
{
&&
(
time_diff
(
priv
->
lastsend
+
priv
->
rx_rto
,
now
)
<=
0
))
{
if
(
time_diff
(
now
,
priv
->
lastrecv
)
>=
15000
)
{
if
(
time_diff
(
now
,
priv
->
lastrecv
)
>=
15000
)
{
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"Receive window closed. Closing down."
);
closedown
(
self
,
ECONNABORTED
,
CLOSEDOWN_LOCAL
);
closedown
(
self
,
ECONNABORTED
,
CLOSEDOWN_LOCAL
);
return
;
return
;
}
}
...
@@ -1408,7 +1411,7 @@ packet(PseudoTcpSocket *self, guint32 seq, TcpFlags flags,
...
@@ -1408,7 +1411,7 @@ packet(PseudoTcpSocket *self, guint32 seq, TcpFlags flags,
g_assert
(
bytes_read
==
len
);
g_assert
(
bytes_read
==
len
);
}
}
DEBUG
(
PSEUDO_TCP_DEBUG_VERBOSE
,
"
<--
<CONV=%u><FLG=%u><SEQ=%u:%u><ACK=%u>"
DEBUG
(
PSEUDO_TCP_DEBUG_VERBOSE
,
"
Sending
<CONV=%u><FLG=%u><SEQ=%u:%u><ACK=%u>"
"<WND=%u><TS=%u><TSR=%u><LEN=%u>"
,
"<WND=%u><TS=%u><TSR=%u><LEN=%u>"
,
priv
->
conv
,
(
unsigned
)
flags
,
seq
,
seq
+
len
,
priv
->
rcv_nxt
,
priv
->
rcv_wnd
,
priv
->
conv
,
(
unsigned
)
flags
,
seq
,
seq
+
len
,
priv
->
rcv_nxt
,
priv
->
rcv_wnd
,
now
%
10000
,
priv
->
ts_recent
%
10000
,
len
);
now
%
10000
,
priv
->
ts_recent
%
10000
,
len
);
...
@@ -1461,7 +1464,8 @@ parse (PseudoTcpSocket *self, const guint8 *_header_buf, gsize header_buf_len,
...
@@ -1461,7 +1464,8 @@ parse (PseudoTcpSocket *self, const guint8 *_header_buf, gsize header_buf_len,
seg
.
data
=
(
const
gchar
*
)
data_buf
;
seg
.
data
=
(
const
gchar
*
)
data_buf
;
seg
.
len
=
data_buf_len
;
seg
.
len
=
data_buf_len
;
DEBUG
(
PSEUDO_TCP_DEBUG_VERBOSE
,
"--> <CONV=%u><FLG=%u><SEQ=%u:%u><ACK=%u>"
DEBUG
(
PSEUDO_TCP_DEBUG_VERBOSE
,
"Received <CONV=%u><FLG=%u><SEQ=%u:%u><ACK=%u>"
"<WND=%u><TS=%u><TSR=%u><LEN=%u>"
,
"<WND=%u><TS=%u><TSR=%u><LEN=%u>"
,
seg
.
conv
,
(
unsigned
)
seg
.
flags
,
seg
.
seq
,
seg
.
seq
+
seg
.
len
,
seg
.
ack
,
seg
.
conv
,
(
unsigned
)
seg
.
flags
,
seg
.
seq
,
seg
.
seq
+
seg
.
len
,
seg
.
ack
,
seg
.
wnd
,
seg
.
tsval
%
10000
,
seg
.
tsecr
%
10000
,
seg
.
len
);
seg
.
wnd
,
seg
.
tsval
%
10000
,
seg
.
tsecr
%
10000
,
seg
.
len
);
...
@@ -1549,15 +1553,18 @@ process(PseudoTcpSocket *self, Segment *seg)
...
@@ -1549,15 +1553,18 @@ process(PseudoTcpSocket *self, Segment *seg)
if
(
priv
->
state
==
TCP_CLOSED
||
if
(
priv
->
state
==
TCP_CLOSED
||
(
pseudo_tcp_state_has_received_fin
(
priv
->
state
)
&&
seg
->
len
>
0
))
{
(
pseudo_tcp_state_has_received_fin
(
priv
->
state
)
&&
seg
->
len
>
0
))
{
/* Send an RST segment. See: RFC 1122, §4.2.2.13. */
/* Send an RST segment. See: RFC 1122, §4.2.2.13. */
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"Segment received while closed; sending RST."
);
if
((
seg
->
flags
&
FLAG_RST
)
==
0
)
{
if
((
seg
->
flags
&
FLAG_RST
)
==
0
)
{
closedown
(
self
,
0
,
CLOSEDOWN_LOCAL
);
closedown
(
self
,
0
,
CLOSEDOWN_LOCAL
);
}
}
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"Segment received while closed; sent RST."
);
return
FALSE
;
return
FALSE
;
}
}
// Check if this is a reset segment
// Check if this is a reset segment
if
(
seg
->
flags
&
FLAG_RST
)
{
if
(
seg
->
flags
&
FLAG_RST
)
{
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"Received RST segment; closing down."
);
closedown
(
self
,
ECONNRESET
,
CLOSEDOWN_REMOTE
);
closedown
(
self
,
ECONNRESET
,
CLOSEDOWN_REMOTE
);
return
FALSE
;
return
FALSE
;
}
}
...
@@ -1671,6 +1678,8 @@ process(PseudoTcpSocket *self, Segment *seg)
...
@@ -1671,6 +1678,8 @@ process(PseudoTcpSocket *self, Segment *seg)
}
else
{
}
else
{
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"recovery retransmit"
);
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"recovery retransmit"
);
if
(
!
transmit
(
self
,
g_queue_peek_head
(
&
priv
->
slist
),
now
))
{
if
(
!
transmit
(
self
,
g_queue_peek_head
(
&
priv
->
slist
),
now
))
{
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"Error transmitting recovery retransmit segment. Closing down."
);
closedown
(
self
,
ECONNABORTED
,
CLOSEDOWN_LOCAL
);
closedown
(
self
,
ECONNABORTED
,
CLOSEDOWN_LOCAL
);
return
FALSE
;
return
FALSE
;
}
}
...
@@ -1701,6 +1710,9 @@ process(PseudoTcpSocket *self, Segment *seg)
...
@@ -1701,6 +1710,9 @@ process(PseudoTcpSocket *self, Segment *seg)
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"enter recovery"
);
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"enter recovery"
);
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"recovery retransmit"
);
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"recovery retransmit"
);
if
(
!
transmit
(
self
,
g_queue_peek_head
(
&
priv
->
slist
),
now
))
{
if
(
!
transmit
(
self
,
g_queue_peek_head
(
&
priv
->
slist
),
now
))
{
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"Error transmitting recovery retransmit segment. Closing down."
);
closedown
(
self
,
ECONNABORTED
,
CLOSEDOWN_LOCAL
);
closedown
(
self
,
ECONNABORTED
,
CLOSEDOWN_LOCAL
);
return
FALSE
;
return
FALSE
;
}
}
...
@@ -2058,6 +2070,8 @@ attempt_send(PseudoTcpSocket *self, SendFlags sflags)
...
@@ -2058,6 +2070,8 @@ attempt_send(PseudoTcpSocket *self, SendFlags sflags)
guint32
now
=
get_current_time
(
self
);
guint32
now
=
get_current_time
(
self
);
gboolean
bFirst
=
TRUE
;
gboolean
bFirst
=
TRUE
;
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"Attempting send with flags %u."
,
sflags
);
if
(
time_diff
(
now
,
priv
->
lastsend
)
>
(
long
)
priv
->
rx_rto
)
{
if
(
time_diff
(
now
,
priv
->
lastsend
)
>
(
long
)
priv
->
rx_rto
)
{
priv
->
cwnd
=
priv
->
mss
;
priv
->
cwnd
=
priv
->
mss
;
}
}
...
@@ -2166,6 +2180,9 @@ closedown (PseudoTcpSocket *self, guint32 err, ClosedownSource source)
...
@@ -2166,6 +2180,9 @@ closedown (PseudoTcpSocket *self, guint32 err, ClosedownSource source)
{
{
PseudoTcpSocketPrivate
*
priv
=
self
->
priv
;
PseudoTcpSocketPrivate
*
priv
=
self
->
priv
;
DEBUG
(
PSEUDO_TCP_DEBUG_NORMAL
,
"Closing down socket %p with %s error %u."
,
self
,
(
source
==
CLOSEDOWN_LOCAL
)
?
"local"
:
"remote"
,
err
);
if
(
source
==
CLOSEDOWN_LOCAL
&&
priv
->
support_fin_ack
)
{
if
(
source
==
CLOSEDOWN_LOCAL
&&
priv
->
support_fin_ack
)
{
queue_rst_message
(
self
);
queue_rst_message
(
self
);
attempt_send
(
self
,
sfRst
);
attempt_send
(
self
,
sfRst
);
...
...
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