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In SSH packet logging mode, log SSH-2 packet sequence numbers, in

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both directions. We had a bug report yesterday about a Cisco router
sending SSH2_MSG_UNIMPLEMENTED and it wasn't clear for which packet;
logging the sequence numbers should make such problems much easier
to diagnose.

(In fact this logging fix wouldn't have helped in yesterday's case,
because the router also didn't bother to fill in the sequence number
field in the SSH2_MSG_UNIMPLEMENTED packet! This is a precautionary
measure against the next one of these problems.)

[originally from svn r8295]
This commit is contained in:
Simon Tatham
2008-11-11 07:47:27 +00:00
parent 59691d28a3
commit 3a3abd211b
3 changed files with 25 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
logging.c
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@ -220,8 +220,9 @@ void log_eventlog(void *handle, const char *event)
* Set of blanking areas must be in increasing order.
*/
void log_packet(void *handle, int direction, int type,
char *texttype, void *data, int len,
int n_blanks, const struct logblank_t *blanks)
char *texttype, const void *data, int len,
int n_blanks, const struct logblank_t *blanks,
const unsigned long *seq)
{
struct LogContext *ctx = (struct LogContext *)handle;
char dumpdata[80], smalldata[5];
@ -233,13 +234,20 @@ void log_packet(void *handle, int direction, int type,
return;
/* Packet header. */
if (texttype)
logprintf(ctx, "%s packet type %d / 0x%02x (%s)\r\n",
direction == PKT_INCOMING ? "Incoming" : "Outgoing",
type, type, texttype);
else
if (texttype) {
if (seq) {
logprintf(ctx, "%s packet #0x%lx, type %d / 0x%02x (%s)\r\n",
direction == PKT_INCOMING ? "Incoming" : "Outgoing",
*seq, type, type, texttype);
} else {
logprintf(ctx, "%s packet type %d / 0x%02x (%s)\r\n",
direction == PKT_INCOMING ? "Incoming" : "Outgoing",
type, type, texttype);
}
} else {
logprintf(ctx, "%s raw data\r\n",
direction == PKT_INCOMING ? "Incoming" : "Outgoing");
}
/*
* Output a hex/ASCII dump of the packet body, blanking/omitting