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Warn when no devices are up/running (fixes #45)

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This commit is contained in:
Arnout Engelen
2016-03-21 00:09:27 +01:00
parent f2cf510d8e
commit cb6ad14afc
5 changed files with 119 additions and 102 deletions
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37
process.cpp
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@@ -1,4 +1,4 @@
/*
/*
* process.cpp
*
* Copyright (c) 2004,2005,2008,2011 Arnout Engelen
@@ -37,17 +37,14 @@
#include "process.h"
#include "nethogs.h"
/* #include "inodeproc.cpp" */
#include "inode2prog.h"
#include "inode2prog.h"
#include "conninode.h"
extern local_addr * local_addrs;
extern timeval curtime;
/*
/*
* connection-inode table. takes information from /proc/net/tcp.
* key contains source ip, source port, destination ip, destination
* key contains source ip, source port, destination ip, destination
* port in format: '1.2.3.4:5-1.2.3.4:5'
*/
extern std::map <std::string, unsigned long> conninode;
@@ -64,12 +61,12 @@ extern std::map <std::string, unsigned long> conninode;
* * unknown IP traffic
* We must take care these never get removed from the list.
*/
Process * unknowntcp;
Process * unknownudp;
Process * unknownip;
Process * unknowntcp;
Process * unknownudp;
Process * unknownip;
ProcList * processes;
/* We're migrating to having several `unknown' processes that are added as
/* We're migrating to having several `unknown' processes that are added as
* normal processes, instead of hard-wired unknown processes.
* This mapping maps from unknown processes descriptions to processes */
std::map <std::string, Process*> unknownprocs;
@@ -90,7 +87,7 @@ float tokbps (u_int32_t bytes)
}
void process_init ()
void process_init ()
{
unknowntcp = new Process (0, "", "unknown TCP");
//unknownudp = new Process (0, "", "unknown UDP");
@@ -205,7 +202,7 @@ Process * findProcess (struct prg_node * node)
{
Process * currentproc = current->getVal();
assert (currentproc != NULL);
if (node->pid == currentproc->pid)
return current->getVal();
current = current->next;
@@ -214,7 +211,7 @@ Process * findProcess (struct prg_node * node)
}
/* finds process based on inode, if any */
/* should be done quickly after arrival of the packet,
/* should be done quickly after arrival of the packet,
* otherwise findPID will be outdated */
Process * findProcess (unsigned long inode)
{
@@ -246,7 +243,7 @@ void check_all_procs ()
}
}
/*
/*
* returns the process from proclist with matching pid
* if the inode is not associated with any PID, return NULL
* if the process is not yet in the proclist, add it
@@ -254,7 +251,7 @@ void check_all_procs ()
Process * getProcess (unsigned long inode, const char * devicename)
{
struct prg_node * node = findPID(inode);
if (node == NULL)
{
if (DEBUG || bughuntmode)
@@ -275,7 +272,7 @@ Process * getProcess (unsigned long inode, const char * devicename)
struct stat stats;
int retval = stat(procdir, &stats);
/* 0 seems a proper default.
/* 0 seems a proper default.
* used in case the PID disappeared while nethogs was running
* TODO we can store node->uid this while info on the inodes,
* right? */
@@ -293,7 +290,7 @@ Process * getProcess (unsigned long inode, const char * devicename)
newproc->setUid(stats.st_uid);
/*if (getpwuid(stats.st_uid) == NULL) {
std::stderr << "uid for inode
std::stderr << "uid for inode
if (!ROBUST)
assert(false);
}*/
@@ -301,11 +298,11 @@ Process * getProcess (unsigned long inode, const char * devicename)
return newproc;
}
/*
/*
* Used when a new connection is encountered. Finds corresponding
* process and adds the connection. If the connection doesn't belong
* to any known process, the process list is updated and a new process
* is made. If no process can be found even then, it's added to the
* is made. If no process can be found even then, it's added to the
* 'unknown' process.
*/
Process * getProcess (Connection * connection, const char * devicename)