Packet tracing web interface

[Brian Candler]

On Mon, Mar 14, 2011 at 10:27:00AM +0000, Alan Buxey wrote:
> radmin can indeed inject packets and give you reply....
>  ie 
> 
> radmin> inject ?
> inject to <ipaddr> <port> - Inject packets to the destination IP and port.
> inject from <ipaddr> - Inject packets as if they came from <ipaddr>
> inject file <input-file> <output-file> - Inject packet from input-file>, with results sent to <output-file>

Thank you. For what it's worth, I *did* go and read the manpage, carefully,
before replying.  The 'inject' option is not mentioned there.

Have you got an example of its use? It seems rather broken to me. I do
have mode=rw set.

radmin> inject
inject to <ipaddr> <port> - Inject packets to the destination IP and port.
inject from <ipaddr> - Inject packets as if they came from <ipaddr>
inject file <input-file> <output-file> - Inject packet from input-file>, with results sent to <output-file>
radmin> inject to 127.0.0.1 1812
ERROR: Unknown socket type
radmin> inject from 127.0.0.1
ERROR: You must specify "inject to" before using "inject from"
radmin> inject file /home/brian/test.in /home/brian/test.out

$ 

Meanwhile, radiusd -X running in a different window shows:

radmin> inject to 127.0.0.1 1812
Ready to process requests.
radmin> inject from 127.0.0.1
Ready to process requests.
radmin> inject file /home/brian/test.in /home/brian/test.out
Segmentation fault
$ 

The contents of /home/brian/test.in are simply:

User-Name = "steve"
User-Password = "testing"

If I rerun radiusd -X under gdb, here's where it crashes:

Ready to process requests.
radmin> inject file /home/brian/test.in /home/brian/test.out

Program received signal SIGSEGV, Segmentation fault.
0x0000000000411b74 in command_inject_file (listener=0x7b11b0, 
    argc=<value optimised out>, argv=0x7fffffffdaf0)
    at /usr/include/bits/string3.h:52
52	  return __builtin___memcpy_chk (__dest, __src, __len, __bos0 (__dest));
(gdb) bt
#0  0x0000000000411b74 in command_inject_file (listener=0x7b11b0, 
    argc=<value optimised out>, argv=0x7fffffffdaf0)
    at /usr/include/bits/string3.h:52
#1  0x0000000000415fc5 in command_domain_recv (listener=0x7b11b0, 
    pfun=<value optimised out>, prequest=<value optimised out>)
    at command.c:2196
#2  0x000000000042a050 in event_socket_handler (xel=<value optimised out>, 
    fd=<value optimised out>, ctx=<value optimised out>) at event.c:3423
#3  0x00007ffff7bd1bdb in fr_event_loop (el=0x7a8810) at event.c:411
#4  0x000000000041c74a in main (argc=2, argv=<value optimised out>)
    at radiusd.c:406
(gdb) 


Regards,

Brian.