Cisco Systems GEM318P Manual De Usuario

This section describes the log statement. The log directive allows the user to specify which debug and 
error messages are sent and where they are sent. The log statement format is as follows

:

 

log [destination stderr | syslog | file filename] [min-level 1-9]

The file destination must be relative to /tmp. This is to prevent non-superuser accounts from having the 
ability to create arbitrary files on the system. Any path components of the filename are stripped. 

The following example shows how to get the full verbosity printed into the /tmp/libsdp.log file:

log min-level 1 destination file libsdp.log 

The following example shows how to get the full verbosity printed into the /STDERR:

log min-level 1 destination stderr 

This section describes the match statement. The match directive enables the user to specify when libsdp 
replaces AF_INET/SOCK_STREAM sockets with AF_SDP/SOCK_STREAM sockets. Each match 
directive specifies a group for which all expressions must evaluate as true (logical and).

The four expressions are as follows:

 ip_port

 ip_port

 ip_port

 program_name

The syntax description for the match statement is as follows:

destination

Defines the destination of the log messages.

stderr

Forwards messages to the STDERR.

syslog

Sends messages to the syslog service.

file filename

Writes messages to the file/tmp/filename.

min-level

Defines the verbosity of the log as follows:

9—Errors are printed.

3—Protocol-matching messages.

2—Socket-creation messages.

1—Function calls and return values.

This expression enables the user to match a client-connect request and 
convert the TCP socket to an SDP socket. The rule is applied during the 
connect system call.

This expression enables the user to match a server-bind request and convert 
the TCP socket to an SDP socket. The rule is applied during the bind system 
call.