Re: 2.1.8 problems on Mac OS 10.3.4

[Chris Kacoroski]

Mark.Burgess@iu.hio.no wrote:

> Can you debug it with gdb?
>
> Mark

Mark,

Using GDB I get the following in proto.c.  I think that something in the 
code is trashing the return pointer from the function (reason for all 
the backtraces).  I am not sure what to do next.  Any help appreciated.

ski


Breakpoint 1, KeyAuthentication (ip=0xbfffdd30) at proto.c:178
warning: Source file is more recent than executable.

178     if (COMPATIBILITY_MODE)
(gdb) break 263
Breakpoint 2 at 0x4ce6c: file proto.c, line 263.
(gdb) backtrace
#0  KeyAuthentication (ip=0xbfffdd30) at proto.c:178
#1  0x00011684 in OpenServerConnection (ip=0x307820) at client.c:84
#2  0x0000befc in MakeImages () at do.c:2444
#3  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#4  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
170     { char sendbuffer[CF_BUFSIZE],in[CF_BUFSIZE],*out,*decrypted_cchall;
(gdb) cont
Continuing.
Loaded /var/cfengine/ppkeys/root-10.1.2.93.pub

Breakpoint 2, KeyAuthentication (ip=0x307820) at proto.c:263
263     len = BN_bn2mpi(PUBKEY->n,sendbuffer);
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:263
#1  0x00000000 in ?? ()
Cannot access memory at address 0x0
Cannot access memory at address 0x0
#2  0x0004ce6c in KeyAuthentication (ip=0x307820) at proto.c:262
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
264     SendTransaction(CONN->sd,sendbuffer,len,CF_DONE); /* No need to 
encrypt
the public key ... */
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:264
(gdb) n
263     len = BN_bn2mpi(PUBKEY->n,sendbuffer);
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:263
#1  0x0004ce80 in KeyAuthentication (ip=0x307820) at proto.c:263
#2  0x00011684 in OpenServerConnection (ip=0xbfff1bc0) at client.c:84
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
264     SendTransaction(CONN->sd,sendbuffer,len,CF_DONE); /* No need to 
encrypt
the public key ... */
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:264
#1  0x0004ce80 in KeyAuthentication (ip=0x307820) at proto.c:263
#2  0x00011684 in OpenServerConnection (ip=0xbfff1bc0) at client.c:84
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
267     memset(sendbuffer,0,CF_BUFSIZE);
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:267
(gdb) n
268     len = BN_bn2mpi(PUBKEY->e,sendbuffer);
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:268
#1  0x00000000 in ?? ()
Cannot access memory at address 0x0
Cannot access memory at address 0x0
#2  0x0004ceac in KeyAuthentication (ip=0x307820) at proto.c:267
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:268
#1  0x00000000 in ?? ()
#2  0x0004ceac in KeyAuthentication (ip=0x307820) at proto.c:267
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
269     SendTransaction(CONN->sd,sendbuffer,len,CF_DONE);
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:269
(gdb) n
268     len = BN_bn2mpi(PUBKEY->e,sendbuffer);
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:268
#1  0x0004cebc in KeyAuthentication (ip=0x307820) at proto.c:268
#2  0x00011684 in OpenServerConnection (ip=0xbfff1bc0) at client.c:84
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
269     SendTransaction(CONN->sd,sendbuffer,len,CF_DONE);
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:269
#1  0x0004cebc in KeyAuthentication (ip=0x307820) at proto.c:268
#2  0x00011684 in OpenServerConnection (ip=0xbfff1bc0) at client.c:84
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
274     memset(in,0,CF_BUFSIZE);
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:274
(gdb) n
276     if (ReceiveTransaction(CONN->sd,in,NULL) == -1)
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:276
#1  0x00000000 in ?? ()
Cannot access memory at address 0x0
Cannot access memory at address 0x0
#2  0x0004cee4 in KeyAuthentication (ip=0x307820) at proto.c:274
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
282     if (BadProtoReply(in))
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:282
#1  0x0004cef8 in KeyAuthentication (ip=0x307820) at proto.c:276
#2  0x00011684 in OpenServerConnection (ip=0xbfff1bc0) at client.c:84
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
291     memset(in,0,CF_BUFSIZE);
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:291
#1  0x0004cf08 in KeyAuthentication (ip=0x307820) at proto.c:282
#2  0x00011684 in OpenServerConnection (ip=0xbfff1bc0) at client.c:84
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
293     if (ReceiveTransaction(CONN->sd,in,NULL) == -1)
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:293
#1  0x00000000 in ?? ()
Cannot access memory at address 0x0
Cannot access memory at address 0x0
#2  0x0004cf2c in KeyAuthentication (ip=0x307820) at proto.c:291
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
299     if (!ChecksumsMatch(digest,in,'m'))
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:299
#1  0x0004cf40 in KeyAuthentication (ip=0x307820) at proto.c:293
#2  0x00011684 in OpenServerConnection (ip=0xbfff1bc0) at client.c:84
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
308        ExpandVarstring(ip->server,server,NULL);
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:308
#1  0x000000fe in ?? ()
#2  0x0004cf64 in KeyAuthentication (ip=0x307820) at proto.c:299
#3  0x0000befc in MakeImages () at do.c:2444
#4  0x000048b8 in DoTree (passes=1, info=0xf0674 "Update") at cfagent.c:1241
#5  0x00001f58 in main (argc=1197148, argv=0x12445c) at cfagent.c:106
(gdb) n
310        if (cant_trust_server == 'y')  /* challenge reply was correct */
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:310
#1  0x00000000 in ?? ()
(gdb) n
312 
Verbose("\n.......................................................
........\n");
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:312
#1  0x00000000 in ?? ()
(gdb) n

...............................................................
313           snprintf(OUTPUT,CF_BUFSIZE,"Strong authentication of 
server=%s con
nection confirmed\n",server);
(gdb) backtrace
#0  KeyAuthentication (ip=0x307820) at proto.c:313
#1  0x00000000 in ?? ()
(gdb)


--
"When we try to pick out anything by itself, we find it
  connected to the entire universe"                John Muir

Chris "Ski" Kacoroski, ckacoroski@nsd.org, 425-489-6263