diff options
Diffstat (limited to 'ksysguard/ksysguardd/Linux/netdev.c')
| -rw-r--r-- | ksysguard/ksysguardd/Linux/netdev.c | 193 |
1 files changed, 154 insertions, 39 deletions
diff --git a/ksysguard/ksysguardd/Linux/netdev.c b/ksysguard/ksysguardd/Linux/netdev.c index 867678642..bba927e19 100644 --- a/ksysguard/ksysguardd/Linux/netdev.c +++ b/ksysguard/ksysguardd/Linux/netdev.c @@ -35,65 +35,85 @@ #define MON_SIZE 128 -#define CALC( a, b, c, d, e ) \ +#define CALC( a, b, c, d, e, f ) \ { \ - NetDevs[ i ].a = a - NetDevs[ i ].Old##a; \ - NetDevs[ i ].Old##a = a; \ + if (f){ \ + NetDevs[ i ].a = a - NetDevs[ i ].Old##a; \ + NetDevs[ i ].Old##a = a; \ + } \ + else{ \ + NetDevs[ i ].a = a; \ + } \ } -#define REGISTERSENSOR( a, b, c, d, e ) \ +#define REGISTERSENSOR( a, b, c, d, e, f ) \ { \ snprintf( mon, MON_SIZE, "network/interfaces/%s/%s", tag, b ); \ registerMonitor( mon, "integer", printNetDev##a, printNetDev##a##Info, NetDevSM ); \ } -#define UNREGISTERSENSOR( a, b, c, d, e ) \ +#define UNREGISTERSENSOR( a, b, c, d, e, f ) \ { \ snprintf( mon, MON_SIZE, "network/interfaces/%s/%s", NetDevs[ i ].name, b ); \ removeMonitor( mon ); \ } -#define DEFMEMBERS( a, b, c, d, e ) \ -unsigned long long Old##a; \ -unsigned long long a; \ -unsigned long a##Scale; +#define DEFMEMBERS( a, b, c, d, e, f ) \ +signed long long Old##a; \ +signed long long a; \ +signed long a##Scale; -#define DEFVARS( a, b, c, d, e ) \ -unsigned long long a; +#define DEFVARS( a, b, c, d, e, f ) \ +signed long long a; + +/*The sixth variable is 1 if the quantity variation must be provided, 0 if the absolute value must be provided */ #define FORALL( a ) \ - a( recBytes, "receiver/data", "Received Data", "kBytes/s", 1024 ) \ - a( recPacks, "receiver/packets", "Received Packets", "1/s", 1 ) \ - a( recErrs, "receiver/errors", "Receiver Errors", "1/s", 1 ) \ - a( recDrop, "receiver/drops", "Receiver Drops", "1/s", 1 ) \ - a( recFifo, "receiver/fifo", "Receiver FIFO Overruns", "1/s", 1 ) \ - a( recFrame, "receiver/frame", "Receiver Frame Errors", "1/s", 1 ) \ - a( recCompressed, "receiver/compressed", "Received Compressed Packets", "1/s", 1 ) \ - a( recMulticast, "receiver/multicast", "Received Multicast Packets", "1/s", 1 ) \ - a( sentBytes, "transmitter/data", "Sent Data", "kBytes/s", 1024 ) \ - a( sentPacks, "transmitter/packets", "Sent Packets", "1/s", 1 ) \ - a( sentErrs, "transmitter/errors", "Transmitter Errors", "1/s", 1 ) \ - a( sentDrop, "transmitter/drops", "Transmitter Drops", "1/s", 1 ) \ - a( sentFifo, "transmitter/fifo", "Transmitter FIFO overruns", "1/s", 1 ) \ - a( sentColls, "transmitter/collisions", "Transmitter Collisions", "1/s", 1 ) \ - a( sentCarrier, "transmitter/carrier", "Transmitter Carrier losses", "1/s", 1 ) \ - a( sentCompressed, "transmitter/compressed", "Transmitter Compressed Packets", "1/s", 1 ) - -#define SETZERO( a, b, c, d, e ) \ + a( recBytes, "receiver/data", "Received Data", "kBytes/s", 1024, 1) \ + a( recPacks, "receiver/packets", "Received Packets", "1/s", 1, 1 ) \ + a( recErrs, "receiver/errors", "Receiver Errors", "1/s", 1, 1 ) \ + a( recDrop, "receiver/drops", "Receiver Drops", "1/s", 1, 1 ) \ + a( recFifo, "receiver/fifo", "Receiver FIFO Overruns", "1/s", 1, 1 ) \ + a( recFrame, "receiver/frame", "Receiver Frame Errors", "1/s", 1, 1 ) \ + a( recCompressed, "receiver/compressed", "Received Compressed Packets", "1/s", 1, 1 ) \ + a( recMulticast, "receiver/multicast", "Received Multicast Packets", "1/s", 1, 1 ) \ + a( sentBytes, "transmitter/data", "Sent Data", "kBytes/s", 1024, 1 ) \ + a( sentPacks, "transmitter/packets", "Sent Packets", "1/s", 1, 1 ) \ + a( sentErrs, "transmitter/errors", "Transmitter Errors", "1/s", 1, 1 ) \ + a( sentDrop, "transmitter/drops", "Transmitter Drops", "1/s", 1, 1 ) \ + a( sentFifo, "transmitter/fifo", "Transmitter FIFO overruns", "1/s", 1, 1 ) \ + a( sentColls, "transmitter/collisions", "Transmitter Collisions", "1/s", 1, 1 ) \ + a( sentCarrier, "transmitter/carrier", "Transmitter Carrier losses", "1/s", 1, 1 ) \ + a( sentCompressed, "transmitter/compressed", "Transmitter Compressed Packets", "1/s", 1, 1 ) + +#define FORALLWIFI( a ) \ + a( linkQuality, "wifi/quality", "Link Quality", "", 1, 0) \ + a( signalLevel, "wifi/signal", "Signal Level", "dBm", 1, 0) \ + a( noiseLevel, "wifi/noise", "Noise Level", "dBm", 1, 0) \ + a( nwid, "wifi/nwid", "Rx Invalid Nwid Packets", "1/s", 1, 1) \ + a( RxCrypt, "wifi/crypt", "Rx Invalid Crypt Packets", "1/s", 1, 1) \ + a( frag, "wifi/frag", "Rx Invalid Frag Packets", "1/s", 1, 1) \ + a( retry, "wifi/retry", "Tx Excessive Retries Packets", "1/s", 1, 1) \ + a( misc, "wifi/misc", "Invalid Misc Packets", "1/s", 1, 1) \ + a( beacon, "wifi/beacon", "Missed Beacon", "1/s", 1, 1) + +#define SETZERO( a, b, c, d, e, f ) \ a = 0; -#define SETMEMBERZERO( a, b, c, d, e ) \ +#define SETMEMBERZERO( a, b, c, d, e, f ) \ NetDevs[ i ].a = 0; \ NetDevs[ i ].a##Scale = e; -#define DECLAREFUNC( a, b, c, d, e ) \ +#define DECLAREFUNC( a, b, c, d, e, f ) \ void printNetDev##a( const char* cmd ); \ void printNetDev##a##Info( const char* cmd ); typedef struct { FORALL( DEFMEMBERS ) + FORALLWIFI( DEFMEMBERS ) char name[ 32 ]; + int wifi; } NetDevInfo; /* We have observed deviations of up to 5% in the accuracy of the timer @@ -106,6 +126,7 @@ static struct SensorModul* NetDevSM; #define NETDEVBUFSIZE 4096 static char NetDevBuf[ NETDEVBUFSIZE ]; +static char NetDevWifiBuf[ NETDEVBUFSIZE ]; static int NetDevCnt = 0; static int Dirty = 0; static int NetDevOk = 0; @@ -117,15 +138,17 @@ static NetDevInfo NetDevs[ MAXNETDEVS ]; void processNetDev( void ); FORALL( DECLAREFUNC ) +FORALLWIFI( DECLAREFUNC ) static int processNetDev_( void ) { - int i; + int i,j; char format[ 32 ]; char devFormat[ 16 ]; char buf[ 1024 ]; char tag[ 64 ]; char* netDevBufP = NetDevBuf; + char* netDevWifiBufP = NetDevWifiBuf; sprintf( format, "%%%d[^\n]\n", (int)sizeof( buf ) - 1 ); sprintf( devFormat, "%%%ds", (int)sizeof( tag ) - 1 ); @@ -147,8 +170,8 @@ static int processNetDev_( void ) FORALL( DEFVARS ); *pos = '\0'; FORALL( SETZERO ); - sscanf( buf + 7, "%llu %llu %llu %llu %llu %llu %llu %llu " - "%llu %llu %llu %llu %llu %llu %llu %llu", + sscanf( buf + 7, "%lli %lli %lli %lli %lli %lli %lli %lli " + "%lli %lli %lli %lli %lli %lli %lli %lli", &recBytes, &recPacks, &recErrs, &recDrop, &recFifo, &recFrame, &recCompressed, &recMulticast, &sentBytes, &sentPacks, &sentErrs, &sentDrop, @@ -168,6 +191,44 @@ static int processNetDev_( void ) if ( i != NetDevCnt ) return -1; + /*Update the values for the wifi interfaces*/ + if ( *netDevWifiBufP=='\0') /*there is no /proc/net/wireless file*/ + return 0; + + /* skip 2 first lines */ + for ( i = 0; i < 2; i++ ) { + sscanf( netDevWifiBufP, format, buf ); + buf[ sizeof( buf ) - 1 ] = '\0'; + netDevWifiBufP += strlen( buf ) + 1; /* move netDevWifiBufP to next line */ + } + + for ( j = 0; sscanf( netDevWifiBufP, format, buf ) == 1; ++j ) { + buf[ sizeof( buf ) - 1 ] = '\0'; + netDevWifiBufP += strlen( buf ) + 1; /* move netDevWifiBufP to next line */ + + if ( sscanf( buf, devFormat, tag ) ) { + char* pos = strchr( tag, ':' ); + if ( pos ) { + FORALLWIFI( DEFVARS ); + *pos = '\0'; + + for (i = 0 ; i < NetDevCnt ; ++i){ /*find the corresponding interface*/ + if ( strcmp(tag,NetDevs[ i ].name)==0){ + break; + } + } + sscanf( buf + 12, " %lli. %lli. %lli. %lli %lli %lli %lli %lli %lli", + &linkQuality, &signalLevel, &noiseLevel, &nwid, + &RxCrypt, &frag, &retry, &misc, &beacon ); + signalLevel -= 256; /*the units are dBm*/ + noiseLevel -= 256; + FORALLWIFI( CALC ); + } + } + } + + + /* save exact time inverval between this and the last read of * /proc/net/dev */ timeInterval = currSampling.tv_sec - lastSampling.tv_sec + @@ -200,12 +261,13 @@ void processNetDev( void ) void initNetDev( struct SensorModul* sm ) { - int i; + int i,j; char format[ 32 ]; char devFormat[ 16 ]; char buf[ 1024 ]; char tag[ 64 ]; char* netDevBufP = NetDevBuf; + char* netDevWifiBufP = NetDevWifiBuf; NetDevSM = sm; @@ -233,8 +295,8 @@ void initNetDev( struct SensorModul* sm ) *pos = '\0'; strlcpy( NetDevs[ i ].name, tag, sizeof( NetDevs[ i ].name ) ); FORALL( REGISTERSENSOR ); - sscanf( pos + 1, "%llu %llu %llu %llu %llu %llu %llu %llu" - "%llu %llu %llu %llu %llu %llu %llu %llu", + sscanf( pos + 1, "%lli %lli %lli %lli %lli %lli %lli %lli" + "%lli %lli %lli %lli %lli %lli %lli %lli", &NetDevs[ i ].recBytes, &NetDevs[ i ].recPacks, &NetDevs[ i ].recErrs, &NetDevs[ i ].recDrop, &NetDevs[ i ].recFifo, &NetDevs[ i ].recFrame, @@ -247,6 +309,39 @@ void initNetDev( struct SensorModul* sm ) } FORALL( SETMEMBERZERO ); } + + } + + /* detect the wifi interfaces*/ + /* skip 2 first lines */ + for ( i = 0; i < 2; i++ ) { + sscanf( netDevWifiBufP, format, buf ); + buf[ sizeof( buf ) - 1 ] = '\0'; + netDevWifiBufP += strlen( buf ) + 1; /* move netDevWifiBufP to next line */ + } + + for ( j = 0; sscanf( netDevWifiBufP, format, buf ) == 1; ++j ) { + buf[ sizeof( buf ) - 1 ] = '\0'; + netDevWifiBufP += strlen( buf ) + 1; /* move netDevWifiBufP to next line */ + + if ( sscanf( buf, devFormat, tag ) ) { + char * pos = strchr( tag, ':' ); + if ( pos ) { + char mon[ MON_SIZE ]; + *pos = '\0'; + /*find and tag the corresponding NetDev as wifi enabled. + At the end of the loop, i is the index of the device. + This variable i is used in some macro */ + for (i = 0 ; i < NetDevCnt ; ++i){ + if ( strcmp(tag,NetDevs[ i ].name)==0){ + NetDevs[ i ].wifi = 1; + break; + } + } + FORALLWIFI( REGISTERSENSOR ); + } + FORALLWIFI( SETMEMBERZERO ); /* the variable i must point to the corrrect NetDevs[i]*/ + } } /* Call processNetDev to elimitate initial peek values. */ @@ -260,6 +355,8 @@ void exitNetDev( void ) for ( i = 0; i < NetDevCnt; ++i ) { char mon[ MON_SIZE ]; FORALL( UNREGISTERSENSOR ); + if (NetDevs[ i ].wifi) + FORALLWIFI( UNREGISTERSENSOR ); } NetDevCnt = 0; } @@ -320,6 +417,20 @@ int updateNetDev( void ) Dirty = 1; + /* We read the informations about the wifi from /proc/net/wireless and store it into NetDevWifiBuf */ + if ( ( fd = open( "/proc/net/wireless", O_RDONLY ) ) < 0 ) { + /* /proc/net/wireless may not exist on some machines. */ + NetDevWifiBuf[0]='\0'; + } + + if ( ( n = read( fd, NetDevWifiBuf, NETDEVBUFSIZE - 1 ) ) == NETDEVBUFSIZE - 1 ) { + log_error( "Internal buffer too small to read \'/proc/net/wireless\'" ); + close( fd ); + return -1; + } + close( fd ); + NetDevWifiBuf[ n ] = '\0'; + return 0; } @@ -331,7 +442,7 @@ void checkNetDev( void ) initNetDev( NetDevSM ); } -#define PRINTFUNC( a, b, c, d, e ) \ +#define PRINTFUNC( a, b, c, d, e, f ) \ void printNetDev##a( const char* cmd ) \ { \ int i; \ @@ -350,8 +461,11 @@ void printNetDev##a( const char* cmd ) \ \ for ( i = 0; i < MAXNETDEVS; ++i ) \ if ( strcmp( NetDevs[ i ].name, dev ) == 0) { \ - fprintf( CurrentClient, "%lu\n", (unsigned long) \ + if (f) \ + fprintf( CurrentClient, "%li\n", (long) \ ( NetDevs[ i ].a / ( NetDevs[ i ].a##Scale * timeInterval ) ) ); \ + else \ + fprintf( CurrentClient, "%li\n", (long) NetDevs[ i ].a ); \ return; \ } \ \ @@ -365,3 +479,4 @@ void printNetDev##a##Info( const char* cmd ) \ } FORALL( PRINTFUNC ) +FORALLWIFI( PRINTFUNC ) |