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/*
* Copyright 2003,2005,2006 Bernhard Walle <bernhard@bwalle.de>
* Copyright 2010 Florian Rivoal <frivoal@gmail.com>
* -------------------------------------------------------------------------------------------------
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 675 Mass
* Ave, Cambridge, MA 02139, USA.
*
* -------------------------------------------------------------------------------------------------
*/
#ifndef NET_H
#define NET_H
#include "os.h"
#include "slurm.h"
#define MSGSIZE 1024
#define UP_UPDATE_INTERVAL 20
#define IP_UPDATE_INTERVAL 20
#define IP_ADDRESS_LENGTH 64
#define INTERFACE_NAME_LENGTH 33
#ifndef gettext_noop
#define gettext_noop(String) String
#endif
/** errorcodes */
typedef enum
{
UNKNOWN_ERROR,
PROC_DEVICE_NOT_FOUND,
INTERFACE_NOT_FOUND
} errorcode_t;
/**
* We need this because we cannot use static variables. Using of static variables allows
* us not to use several instances of the plugin.
* I know that this change makes it a bit incompatible with wormulon, but that's the
* price to pay ...
*/
typedef struct
{
char old_interface[INTERFACE_NAME_LENGTH];
double backup_in;
errorcode_t errorcode;
double backup_out;
double cur_in;
double cur_out;
struct timeval prev_time;
int correct_interface; /* treated as boolean */
IfData ifdata;
char ip_address[IP_ADDRESS_LENGTH];
int ip_update_count;
DataStats stats;
int up;
int up_update_count;
#ifdef __HPUX__
int wait_pcks_counter;
nmapi_logstat* if_ptr;
#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
int watchif;
int dev_opened;
#elif __NetBSD__
int mib_name1[6];
int mib_name2[6];
char* buf1;
char* buf2;
int alloc1;
int alloc2;
#elif defined(__OpenBSD__) || defined(__MicroBSD__) || defined(__APPLE__)
int mib_name1[6];
int mib_name2[6];
char* buf1;
char* buf2;
int alloc1;
int alloc2;
#elif __linux__
FILE* proc_net_dev;
#elif __Solaris__
#else
#error "OS not supported"
#endif
} netdata;
/**
* Initializes the netload plugin. Used to set up inital values. This function must
* be called after each change of the network interface.
* @param device The network device, e.g. <code>ippp0</code> for ISDN on Linux.
* @return <code>true</code> if no error occurs, <code>false</code> otherwise. If there's
* an error, the error message may be set
*/
int init_netload(netdata* data, const char* device);
/**
* Gets the current netload. You must call init_netload() once before you use this function!
* @param in Input load in byte/s.
* @param out Output load in byte/s.
* @param tot Total load in byte/s.
*/
void get_current_netload(netdata* data, unsigned long *in, unsigned long *out, unsigned long *tot);
/**
* Returns the name of the network interface.
* @param data object
* @return The name. String resides in data and you don't have to free the string.
* On error, returns NULL.
*/
char* get_name(netdata* data);
/**
* Check to see if an interface is up.
* @param data object
* @return <code>true</code> if interface is up, <code>false</code> otherwise.
*/
int get_interface_up(netdata* data);
/**
* Returns the IP address of the network interface
* @param data object
* @return the IP address as string, NULL on error.
*/
char* get_ip_address(netdata* data);
/**
* Should be called to do cleanup work.
*/
void close_netload(netdata* data);
#endif /* NET_H */
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