Hi!
I've just finished a quick hack to allow jails to indirectly execute ping
and traceroute by sending commands to the FreeBSD host housing the jails.
A small daemon processes the requests and sends the reply back to the clients.
Just grab http://www.wormulon.net/files/FreeBSD/rsocket-HEAD.tar.gz and don't forget to modify defs.h :)
'features':
- should be safe from 'hack' attempts like "traceroute 123.org;id" - IPv6 ready ... just need to add some lines - executes ping -c 4 and does not offer any way to modify parameters - works for me :)
Any comments are welcome!
=== cut ===
/* dissect into type and parameter */
param = strstr(buf, " ");
if ((param != NULL) || (strstr(param, " ") != NULL))
{
*param = '\0';
param++;
param[strlen(param)-2] = '\0';
=== cut ===
Suppose the buffer holds the following data: " ". param=strstr(buf, " "); will pass. param!=NULL will yield true *param++ = 0 will put \0 instead of the space. strlen(param) will yield 0. param[-2] = '\0' will write zero into... into... something...
throw it off and rewirite anew.
-- Lev Walkin [EMAIL PROTECTED]
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