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bandwidthd.c
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#include "bandwidthd.h"
#ifdef HAVE_LIBPQ
#include <libpq-fe.h>
#endif
// We must call regular exit to write out profile data, but child forks are supposed to usually
// call _exit?
#ifdef PROFILE
#define _exit(x) exit(x)
#endif
/*
#ifdef DEBUG
#define fork() (0)
#endif
*/
// ****************************************************************************************
// ** Global Variables
// ****************************************************************************************
static pcap_t *pd;
unsigned int GraphIntervalCount = 0;
unsigned int IpCount = 0;
unsigned int SubnetCount = 0;
time_t IntervalStart;
time_t ProgramStart;
int RotateLogs = FALSE;
struct SubnetData SubnetTable[SUBNET_NUM];
struct IPData IpTable[IP_NUM];
int DataLink;
int IP_Offset;
struct IPDataStore *IPDataStore = NULL;
extern int bdconfig_parse(void);
extern FILE *bdconfig_in;
struct config config;
pid_t workerchildpids[NR_WORKER_CHILDS];
void signal_handler(int sig)
{
switch (sig)
{
case SIGHUP:
signal(SIGHUP, signal_handler);
RotateLogs++;
if (config.tag == '1')
{
int i;
/* signal children */
for (i=0; i < NR_WORKER_CHILDS; i++)
kill(workerchildpids[i], SIGHUP);
}
break;
case SIGTERM:
if (config.tag == '1')
{
int i;
/* send term signal to children */
for (i=0; i < NR_WORKER_CHILDS; i++)
kill(workerchildpids[i], SIGTERM);
}
// TODO: Might want to make sure we're not in the middle of wrighting out a log file
exit(0);
break;
}
}
void bd_CollectingData(char *filename)
{
FILE *index;
index = fopen(filename, "wt");
if (index)
{
fprintf(index, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n");
fprintf(index, "<HTML><HEAD><TITLE>Bandwidthd</TITLE>\n");
if (config.meta_refresh)
fprintf(index, "<META HTTP-EQUIV=\"REFRESH\" content=\"%u\">\n",
config.meta_refresh);
fprintf(index, "<META HTTP-EQUIV=\"EXPIRES\" content=\"-1\">\n");
fprintf(index, "<META HTTP-EQUIV=\"PRAGMA\" content=\"no-cache\">\n");
fprintf(index, "</HEAD>\n<BODY><center><img src=\"logo.gif\" ALT=\"Logo\"><BR>\n");
fprintf(index, "<BR>\n - <a href=\"index.html\">Daily</a> -- <a href=\"index2.html\">Weekly</a> -- ");
fprintf(index, "<a href=\"index3.html\">Monthly</a> -- <a href=\"index4.html\">Yearly</a><BR>\n");
fprintf(index, "</CENTER><BR>bandwidthd has nothing to graph. This message should be replaced by graphs in a few minutes. If it's not, please see the section titled \"Known Bugs and Troubleshooting\" in the README");
fprintf(index, "</BODY></HTML>\n");
fclose(index);
}
else
{
syslog(LOG_ERR, "Cannot open %s for writing", filename);
exit(1);
}
}
int WriteOutWebpages(long int timestamp)
{
struct IPDataStore *DataStore = IPDataStore;
struct SummaryData **SummaryData;
int NumGraphs = 0;
pid_t graphpid;
int Counter;
/* Did we catch any packets since last time? */
if (!DataStore) return -1;
// break off from the main line so we don't miss any packets while we graph
graphpid = fork();
switch (graphpid) {
case 0: /* we're the child, graph. */
{
#ifdef PROFILE
// Got this incantation from a message board. Don't forget to set
// GMON_OUT_PREFIX in the shell
extern void _start(void), etext(void);
syslog(LOG_INFO, "Calling profiler startup...");
monstartup((u_long) &_start, (u_long) &etext);
#endif
signal(SIGHUP, SIG_IGN);
nice(4); // reduce priority so I don't choke out other tasks
// Count Number of IP's in datastore
for (DataStore = IPDataStore, Counter = 0; DataStore; Counter++, DataStore = DataStore->Next);
// +1 because we don't want to accidently allocate 0
SummaryData = malloc(sizeof(struct SummaryData *)*Counter+1);
DataStore = IPDataStore;
while (DataStore) // Is not null
{
if (DataStore->FirstBlock->NumEntries > 0)
{
SummaryData[NumGraphs] = (struct SummaryData *) malloc(sizeof(struct SummaryData));
GraphIp(DataStore, SummaryData[NumGraphs++], timestamp+LEAD*config.range);
}
DataStore = DataStore->Next;
}
MakeIndexPages(NumGraphs, SummaryData);
_exit(0);
}
break;
case -1:
syslog(LOG_ERR, "Forking grapher child failed!");
return -2;
break;
default: /* parent + successful fork, assume graph success */
return 0;
break;
}
}
void setchildconfig (int level) {
static unsigned long long graph_cutoff;
switch (level) {
case 0:
config.range = RANGE1;
config.interval = INTERVAL1;
config.tag = '1';
graph_cutoff = config.graph_cutoff;
break;
case 1:
// Overide skip_intervals for children
config.skip_intervals = CONFIG_GRAPHINTERVALS;
config.range = RANGE2;
config.interval = INTERVAL2;
config.tag = '2';
config.graph_cutoff = graph_cutoff*(RANGE2/RANGE1);
break;
case 2:
// Overide skip_intervals for children
config.skip_intervals = CONFIG_GRAPHINTERVALS;
config.range = RANGE3;
config.interval = INTERVAL3;
config.tag = '3';
config.graph_cutoff = graph_cutoff*(RANGE3/RANGE1);
break;
case 3:
// Overide skip_intervals for children
config.skip_intervals = CONFIG_GRAPHINTERVALS;
config.range = RANGE4;
config.interval = INTERVAL4;
config.tag = '4';
config.graph_cutoff = graph_cutoff*(RANGE4/RANGE1);
break;
default:
syslog(LOG_ERR, "setchildconfig got an invalid level argument: %d", level);
_exit(1);
}
}
void makepidfile(pid_t pid)
{
FILE *pidfile;
pidfile = fopen("/var/run/bandwidthd.pid", "wt");
if (pidfile)
{
if (fprintf(pidfile, "%d\n", pid) == 0)
{
syslog(LOG_ERR, "Bandwidthd: failed to write '%d' to /var/run/bandwidthd.pid", pid);
fclose(pidfile);
unlink("/var/run/bandwidthd.pid");
}
else
fclose(pidfile);
}
else
syslog(LOG_ERR, "Could not open /var/run/bandwidthd.pid for write");
}
int main(int argc, char **argv)
{
struct bpf_program fcode;
u_char *pcap_userdata = 0;
#ifdef HAVE_PCAP_FINDALLDEVS
pcap_if_t *Devices;
#endif
char Error[PCAP_ERRBUF_SIZE];
struct stat StatBuf;
int i;
int ForkBackground = TRUE;
int ListDevices = FALSE;
int Counter;
ProgramStart = time(NULL);
config.dev = NULL;
config.filter = "ip";
config.skip_intervals = CONFIG_GRAPHINTERVALS;
config.graph_cutoff = CONFIG_GRAPHCUTOFF;
config.promisc = TRUE;
config.graph = TRUE;
config.output_cdf = FALSE;
config.recover_cdf = FALSE;
config.meta_refresh = CONFIG_METAREFRESH;
config.output_database = FALSE;
config.db_connect_string = NULL;
config.sensor_id = "unset";
openlog("bandwidthd", LOG_CONS, LOG_DAEMON);
if (stat("/etc/bandwidthd.conf", &StatBuf))
{
chdir(INSTALL_DIR);
if (stat("./etc/bandwidthd.conf", &StatBuf))
{
printf("Cannot find /etc/bandwidthd.conf or %s/etc/bandwidthd.conf\n", INSTALL_DIR);
syslog(LOG_ERR, "Cannot find /etc/bandwidthd.conf or %s/etc/bandwidthd.conf", INSTALL_DIR);
exit(1);
}
else
{
bdconfig_in = fopen("./etc/bandwidthd.conf", "rt");
}
}
else
{
bdconfig_in = fopen("/etc/bandwidthd.conf", "rt");
}
if (!bdconfig_in)
{
syslog(LOG_ERR, "Cannot open bandwidthd.conf");
printf("Cannot open bandwidthd.conf\n");
exit(1);
}
bdconfig_parse();
/*
// Scary
printf("Estimated max ram utilization\nDataPoints = %.0f/%ld = %.0f\nIPData = %d * DataPoints = %.1f (%.2fKBytes) per IP\nIP_NUM = %d\nTotal = %.1fMBytes * 4 to 8 = %.1fMBytes to %.1fMBytes\n",
RANGE1, INTERVAL1, RANGE1/INTERVAL1,
sizeof(struct IPData),
(float) sizeof(struct IPData)*(RANGE1/INTERVAL1),
(float) (sizeof(struct IPData)*(RANGE1/INTERVAL1))/1024.0,
IP_NUM,
(float)((sizeof(struct IPData)*(RANGE1/INTERVAL1)*IP_NUM)/1024.0)/1024.0,
(float)4*((sizeof(struct IPData)*(RANGE1/INTERVAL1)*IP_NUM)/1024.0)/1024.0,
(float)8*((sizeof(struct IPData)*(RANGE1/INTERVAL1)*IP_NUM)/1024.0)/1024.0);
printf("Sizeof unsigned long: %d, sizeof unsigned long long: %d\n%lu, %llu\n",
sizeof(unsigned long), sizeof (unsigned long long),
(unsigned long) (0-1), (unsigned long long) (0-1));
exit(1);
*/
chdir(INSTALL_DIR);
for(Counter = 1; Counter < argc; Counter++)
{
if (argv[Counter][0] == '-')
{
switch(argv[Counter][1])
{
case 'D':
ForkBackground = FALSE;
break;
case 'l':
ListDevices = TRUE;
break;
default:
printf("Improper argument: %s\n", argv[Counter]);
exit(1);
}
}
}
#ifdef HAVE_PCAP_FINDALLDEVS
pcap_findalldevs(&Devices, Error);
if (Devices == NULL)
{
printf("Can't find network devices: %s", Error);
exit(1);
}
if (config.dev == NULL && Devices->name)
config.dev = strdup(Devices->name);
if (ListDevices)
{
while(Devices)
{
printf("Description: %s\nName: \"%s\"\n\n", Devices->description, Devices->name);
Devices = Devices->next;
}
exit(0);
}
#else
if (ListDevices)
{
printf("List devices is not supported by you version of libpcap\n");
exit(0);
}
#endif
if (config.graph)
{
bd_CollectingData("htdocs/index.html");
bd_CollectingData("htdocs/index2.html");
bd_CollectingData("htdocs/index3.html");
bd_CollectingData("htdocs/index4.html");
}
/* detach from console. */
if (ForkBackground)
if (fork2())
exit(0);
makepidfile(getpid());
setchildconfig(0); /* initialize first (day graphing) process config */
if (config.graph || config.output_cdf)
{
/* fork processes for week, month and year graphing. */
for (i=0; i<NR_WORKER_CHILDS; i++)
{
workerchildpids[i] = fork();
/* initialize children and let them start doing work,
* while parent continues to fork children.
*/
if (workerchildpids[i] == 0)
{ /* child */
setchildconfig(i+1);
break;
}
if (workerchildpids[i] == -1)
{ /* fork failed */
syslog(LOG_ERR, "Failed to fork graphing child (%d)", i);
/* i--; ..to retry? -> possible infinite loop */
continue;
}
}
if(config.recover_cdf)
RecoverDataFromCDF();
}
IntervalStart = time(NULL);
syslog(LOG_INFO, "Opening %s", config.dev);
pd = pcap_open_live(config.dev, 100, config.promisc, 1000, Error);
if (pd == NULL)
{
syslog(LOG_ERR, "%s", Error);
exit(0);
}
if (pcap_compile(pd, &fcode, config.filter, 1, 0) < 0)
{
pcap_perror(pd, "Error");
printf("Malformed libpcap filter string in bandwidthd.conf\n");
syslog(LOG_ERR, "Malformed libpcap filter string in bandwidthd.conf");
exit(1);
}
if (pcap_setfilter(pd, &fcode) < 0)
pcap_perror(pd, "Error");
switch (DataLink = pcap_datalink(pd))
{
default:
if (config.dev)
printf("Unknown Datalink Type %d, defaulting to ethernet\nPlease forward this error message and a packet sample (captured with \"tcpdump -i %s -s 2000 -n -w capture.cap\") to hinkle@derbyworks.com\n", DataLink, config.dev);
else
printf("Unknown Datalink Type %d, defaulting to ethernet\nPlease forward this error message and a packet sample (captured with \"tcpdump -s 2000 -n -w capture.cap\") to hinkle@derbyworks.com\n", DataLink);
syslog(LOG_INFO, "Unkown datalink type, defaulting to ethernet");
case DLT_EN10MB:
syslog(LOG_INFO, "Packet Encoding: Ethernet");
IP_Offset = 14; //IP_Offset = sizeof(struct ether_header);
break;
#ifdef DLT_LINUX_SLL
case DLT_LINUX_SLL:
syslog(LOG_INFO, "Packet Encoding: Linux Cooked Socket");
IP_Offset = 16;
break;
#endif
#ifdef DLT_RAW
case DLT_RAW:
printf("Untested Datalink Type %d\nPlease report to hinkle@derbyworks.net if bandwidthd works for you\non this interface\n", DataLink);
printf("Packet Encoding:\n\tRaw\n");
syslog(LOG_INFO, "Untested packet encoding: Raw");
IP_Offset = 0;
break;
#endif
case DLT_IEEE802:
printf("Untested Datalink Type %d\nPlease report to hinkle@derbyworks.net if bandwidthd works for you\non this interface\n", DataLink);
printf("Packet Encoding:\nToken Ring\n");
syslog(LOG_INFO, "Untested packet encoding: Token Ring");
IP_Offset = 22;
break;
}
if (ForkBackground)
{
fclose(stdin);
fclose(stdout);
fclose(stderr);
}
signal(SIGHUP, signal_handler);
signal(SIGTERM, signal_handler);
if (IPDataStore) // If there is data in the datastore draw some initial graphs
{
syslog(LOG_INFO, "Drawing initial graphs");
WriteOutWebpages(IntervalStart+config.interval);
}
if (pcap_loop(pd, -1, PacketCallback, pcap_userdata) < 0) {
syslog(LOG_ERR, "Bandwidthd: pcap_loop: %s", pcap_geterr(pd));
exit(1);
}
pcap_close(pd);
exit(0);
}
void PacketCallback(u_char *user, const struct pcap_pkthdr *h, const u_char *p)
{
unsigned int counter;
u_int caplen = h->caplen;
const struct ip *ip;
uint32_t srcip;
uint32_t dstip;
struct IPData *ptrIPData;
if (h->ts.tv_sec > IntervalStart + config.interval) // Then write out this intervals data and possibly kick off the grapher
{
GraphIntervalCount++;
CommitData(IntervalStart+config.interval);
IpCount = 0;
IntervalStart=h->ts.tv_sec;
}
caplen -= IP_Offset; // We're only measuring ip size, so pull off the ethernet header
p += IP_Offset; // Move the pointer past the datalink header
ip = (const struct ip *)p; // Point ip at the ip header
if (ip->ip_v != 4) // then not an ip packet so skip it
return;
srcip = ntohl(*(uint32_t *) (&ip->ip_src));
dstip = ntohl(*(uint32_t *) (&ip->ip_dst));
for (counter = 0; counter < SubnetCount; counter++)
{
// Packets from a monitored subnet to a monitored subnet will be
// credited to both ip's
if (SubnetTable[counter].ip == (srcip & SubnetTable[counter].mask))
{
ptrIPData = FindIp(srcip); // Return or create this ip's data structure
if (ptrIPData)
Credit(&(ptrIPData->Send), ip);
ptrIPData = FindIp(0); // Totals
if (ptrIPData)
Credit(&(ptrIPData->Send), ip);
}
if (SubnetTable[counter].ip == (dstip & SubnetTable[counter].mask))
{
ptrIPData = FindIp(dstip);
if (ptrIPData)
Credit(&(ptrIPData->Receive), ip);
ptrIPData = FindIp(0);
if (ptrIPData)
Credit(&(ptrIPData->Receive), ip);
}
}
}
inline void Credit(struct Statistics *Stats, const struct ip *ip)
{
unsigned long size;
const struct tcphdr *tcp;
uint16_t sport, dport;
size = ntohs(ip->ip_len);
Stats->total += size;
switch(ip->ip_p)
{
case 6: // TCP
tcp = (struct tcphdr *)(ip+1);
tcp = (struct tcphdr *) ( ((char *)tcp) + ((ip->ip_hl-5)*4) ); // Compensate for IP Options
Stats->tcp += size;
sport = ntohs(tcp->TCPHDR_SPORT);
dport = ntohs(tcp->TCPHDR_DPORT);
if (sport == 80 || dport == 80 || sport == 443 || dport == 443)
Stats->http += size;
if (sport == 20 || dport == 20 || sport == 21 || dport == 21)
Stats->ftp += size;
if ( sport == 25 || dport == 25 || sport == 465 || dport == 465 || sport == 587 || dport == 587) // IN and OUT email
Stats->p2p += size;
break;
case 17:
Stats->udp += size;
break;
case 1:
Stats->icmp += size;
break;
}
}
// TODO: Throw away old data!
void DropOldData(long int timestamp) // Go through the ram datastore and dump old data
{
struct IPDataStore *DataStore;
struct IPDataStore *PrevDataStore;
struct DataStoreBlock *DeletedBlock;
PrevDataStore = NULL;
DataStore = IPDataStore;
// Progress through the linked list until we reach the end
while(DataStore) // we have data
{
// If the First block is out of date, purge it, if it is the only block
// purge the node
while(DataStore->FirstBlock->LatestTimestamp < timestamp - config.range)
{
if ((!DataStore->FirstBlock->Next) && PrevDataStore) // There is no valid block of data for this ip, so unlink the whole ip
{ // Don't bother unlinking the ip if it's the first one, that's to much
// Trouble
PrevDataStore->Next = DataStore->Next; // Unlink the node
free(DataStore->FirstBlock->Data); // Free the memory
free(DataStore->FirstBlock);
free(DataStore);
DataStore = PrevDataStore->Next; // Go to the next node
if (!DataStore) return; // We're done
}
else if (!DataStore->FirstBlock->Next)
{
// There is no valid block of data for this ip, and we are
// the first ip, so do nothing
break; // break out of this loop so the outside loop increments us
}
else // Just unlink this block
{
DeletedBlock = DataStore->FirstBlock;
DataStore->FirstBlock = DataStore->FirstBlock->Next; // Unlink the block
free(DeletedBlock->Data);
free(DeletedBlock);
}
}
PrevDataStore = DataStore;
DataStore = DataStore->Next;
}
}
void StoreIPDataInPostgresql(struct IPData IncData[])
{
#ifdef HAVE_LIBPQ
struct IPData *IPData;
unsigned int counter;
struct Statistics *Stats;
PGresult *res;
static PGconn *conn = NULL;
static char sensor_id[50];
const char *paramValues[10];
char *sql1;
char *sql2;
char Values[10][50];
if (!config.output_database == DB_PGSQL)
return;
paramValues[0] = Values[0];
paramValues[1] = Values[1];
paramValues[2] = Values[2];
paramValues[3] = Values[3];
paramValues[4] = Values[4];
paramValues[5] = Values[5];
paramValues[6] = Values[6];
paramValues[7] = Values[7];
paramValues[8] = Values[8];
paramValues[9] = Values[9];
// ************ Inititialize the db if it's not already
if (!conn)
{
/* Connect to the database */
conn = PQconnectdb(config.db_connect_string);
/* Check to see that the backend connection was successfully made */
if (PQstatus(conn) != CONNECTION_OK)
{
syslog(LOG_ERR, "Connection to database '%s' failed: %s", config.db_connect_string, PQerrorMessage(conn));
PQfinish(conn);
conn = NULL;
return;
}
strncpy(Values[0], config.sensor_id, 50);
res = PQexecParams(conn, "select sensor_id from sensors where sensor_name = $1;",
1, /* one param */
NULL, /* let the backend deduce param type */
paramValues,
NULL, /* don't need param lengths since text */
NULL, /* default to all text params */
0); /* ask for binary results */
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
syslog(LOG_ERR, "Postresql SELECT failed: %s", PQerrorMessage(conn));
PQclear(res);
PQfinish(conn);
conn = NULL;
return;
}
if (PQntuples(res))
{
strncpy(sensor_id, PQgetvalue(res, 0, 0), 50);
PQclear(res);
}
else
{
// Insert new sensor id
PQclear(res);
res = PQexecParams(conn, "insert into sensors (sensor_name, last_connection) VALUES ($1, now());",
1, /* one param */
NULL, /* let the backend deduce param type */
paramValues,
NULL, /* don't need param lengths since text */
NULL, /* default to all text params */
0); /* ask for binary results */
if (PQresultStatus(res) != PGRES_COMMAND_OK)
{
syslog(LOG_ERR, "Postresql INSERT failed: %s", PQerrorMessage(conn));
PQclear(res);
PQfinish(conn);
conn = NULL;
return;
}
PQclear(res);
res = PQexecParams(conn, "select sensor_id from sensors where sensor_name = $1;",
1, /* one param */
NULL, /* let the backend deduce param type */
paramValues,
NULL, /* don't need param lengths since text */
NULL, /* default to all text params */
0); /* ask for binary results */
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
syslog(LOG_ERR, "Postresql SELECT failed: %s", PQerrorMessage(conn));
PQclear(res);
PQfinish(conn);
conn = NULL;
return;
}
strncpy(sensor_id, PQgetvalue(res, 0, 0), 50);
PQclear(res);
}
}
// Begin transaction
// **** Perform inserts
res = PQexecParams(conn, "BEGIN;",
0, /* zero param */
NULL, /* let the backend deduce param type */
NULL,
NULL, /* don't need param lengths since text */
NULL, /* default to all text params */
0); /* ask for binary results */
if (PQresultStatus(res) != PGRES_COMMAND_OK)
{
syslog(LOG_ERR, "Postresql BEGIN failed: %s", PQerrorMessage(conn));
PQclear(res);
PQfinish(conn);
conn = NULL;
return;
}
PQclear(res);
strncpy(Values[0], sensor_id, 50);
res = PQexecParams(conn, "update sensors set last_connection = now() where sensor_id = $1;",
1, /* one param */
NULL, /* let the backend deduce param type */
paramValues,
NULL, /* don't need param lengths since text */
NULL, /* default to all text params */
0); /* ask for binary results */
if (PQresultStatus(res) != PGRES_COMMAND_OK)
{
syslog(LOG_ERR, "Postresql UPDATE failed: %s", PQerrorMessage(conn));
PQclear(res);
PQfinish(conn);
conn = NULL;
return;
}
PQclear(res);
Values[0][49] = '\0';
snprintf(Values[1], 50, "%llu", config.interval);
for (counter=0; counter < IpCount; counter++)
{
IPData = &IncData[counter];
if (IPData->ip == 0)
{
// This optimization allows us to quickly draw totals graphs for a sensor
sql1 = "INSERT INTO bd_tx_total_log (sensor_id, sample_duration, ip, total, icmp, udp, tcp, ftp, http, p2p) VALUES($1, $2, $3, $4, $5, $6, $7, $8, $9, $10);";
sql2 = "INSERT INTO bd_rx_total_log (sensor_id, sample_duration, ip, total, icmp, udp, tcp, ftp, http, p2p) VALUES($1, $2, $3, $4, $5, $6, $7, $8, $9, $10);";
}
else
{
sql1 = "INSERT INTO bd_tx_log (sensor_id, sample_duration, ip, total, icmp, udp, tcp, ftp, http, p2p) VALUES($1, $2, $3, $4, $5, $6, $7, $8, $9, $10);";
sql2 = "INSERT INTO bd_rx_log (sensor_id, sample_duration, ip, total, icmp, udp, tcp, ftp, http, p2p) VALUES($1, $2, $3, $4, $5, $6, $7, $8, $9, $10);";
}
HostIp2CharIp(IPData->ip, Values[2]);
Stats = &(IPData->Send);
if (Stats->total > 512) // Don't log empty sets
{
// Log data in kilobytes
snprintf(Values[3], 50, "%llu", (long long unsigned int)((((double)Stats->total)/1024.0) + 0.5));
snprintf(Values[4], 50, "%llu", (long long unsigned int)((((double)Stats->icmp)/1024.0) + 0.5));
snprintf(Values[5], 50, "%llu", (long long unsigned int)((((double)Stats->udp)/1024.0) + 0.5));
snprintf(Values[6], 50, "%llu", (long long unsigned int)((((double)Stats->tcp)/1024.0) + 0.5));
snprintf(Values[7], 50, "%llu", (long long unsigned int)((((double)Stats->ftp)/1024.0) + 0.5));
snprintf(Values[8], 50, "%llu", (long long unsigned int)((((double)Stats->http)/1024.0) + 0.5));
snprintf(Values[9], 50, "%llu", (long long unsigned int)((((double)Stats->p2p)/1024.0) + 0.5));
res = PQexecParams(conn, sql1,
10, /* nine param */
NULL, /* let the backend deduce param type */
paramValues,
NULL, /* don't need param lengths since text */
NULL, /* default to all text params */
1); /* ask for binary results */
if (PQresultStatus(res) != PGRES_COMMAND_OK)
{
syslog(LOG_ERR, "Postresql INSERT failed: %s", PQerrorMessage(conn));
PQclear(res);
PQfinish(conn);
conn = NULL;
return;
}
PQclear(res);
}
Stats = &(IPData->Receive);
if (Stats->total > 512) // Don't log empty sets
{
snprintf(Values[3], 50, "%llu", (long long unsigned int)((((double)Stats->total)/1024.0) + 0.5));
snprintf(Values[4], 50, "%llu", (long long unsigned int)((((double)Stats->icmp)/1024.0) + 0.5));
snprintf(Values[5], 50, "%llu", (long long unsigned int)((((double)Stats->udp)/1024.0) + 0.5));
snprintf(Values[6], 50, "%llu", (long long unsigned int)((((double)Stats->tcp)/1024.0) + 0.5));
snprintf(Values[7], 50, "%llu", (long long unsigned int)((((double)Stats->ftp)/1024.0) + 0.5));
snprintf(Values[8], 50, "%llu", (long long unsigned int)((((double)Stats->http)/1024.0) + 0.5));
snprintf(Values[9], 50, "%llu", (long long unsigned int)((((double)Stats->p2p)/1024.0) + 0.5));
res = PQexecParams(conn, sql2,
10, /* seven param */
NULL, /* let the backend deduce param type */
paramValues,
NULL, /* don't need param lengths since text */
NULL, /* default to all text params */
1); /* ask for binary results */
if (PQresultStatus(res) != PGRES_COMMAND_OK)
{
syslog(LOG_ERR, "Postresql INSERT failed: %s", PQerrorMessage(conn));
PQclear(res);
PQfinish(conn);
conn = NULL;
return;
}
PQclear(res);
}
}
// Commit transaction
res = PQexecParams(conn, "COMMIT;",
0, /* zero param */
NULL, /* let the backend deduce param type */
NULL,
NULL, /* don't need param lengths since text */
NULL, /* default to all text params */
0); /* ask for binary results */
if (PQresultStatus(res) != PGRES_COMMAND_OK)
{
syslog(LOG_ERR, "Postresql COMMIT failed: %s", PQerrorMessage(conn));
PQclear(res);
PQfinish(conn);
conn = NULL;
return;
}
PQclear(res);
#else
syslog(LOG_ERR, "Postgresql logging selected but postgresql support is not compiled into binary. Please check the documentation in README, distributed with this software.");
#endif
}
void StoreIPDataInDatabase(struct IPData IncData[])
{
if (config.output_database == DB_PGSQL)
StoreIPDataInPostgresql(IncData);
else if(config.output_database == DB_SQLITE)
sqliteStoreIPData(IncData);
}
void StoreIPDataInCDF(struct IPData IncData[])
{
struct IPData *IPData;
unsigned int counter;
FILE *cdf;
struct Statistics *Stats;
char IPBuffer[50];
char logfile[] = "log.1.0.cdf";
logfile[4] = config.tag;
cdf = fopen(logfile, "at");
for (counter=0; counter < IpCount; counter++)
{
IPData = &IncData[counter];
HostIp2CharIp(IPData->ip, IPBuffer);
fprintf(cdf, "%s,%lu,", IPBuffer, IPData->timestamp);
Stats = &(IPData->Send);
fprintf(cdf, "%llu,%llu,%llu,%llu,%llu,%llu,%llu,", Stats->total, Stats->icmp, Stats->udp, Stats->tcp, Stats->ftp, Stats->http, Stats->p2p);
Stats = &(IPData->Receive);
fprintf(cdf, "%llu,%llu,%llu,%llu,%llu,%llu,%llu\n", Stats->total, Stats->icmp, Stats->udp, Stats->tcp, Stats->ftp, Stats->http, Stats->p2p);
}
fclose(cdf);
}
void _StoreIPDataInRam(struct IPData *IPData)
{
struct IPDataStore *DataStore;
struct DataStoreBlock *DataStoreBlock;
if (!IPDataStore) // we need to create the first entry
{
// Allocate Datastore for this IP
IPDataStore = malloc(sizeof(struct IPDataStore));
IPDataStore->ip = IPData->ip;
IPDataStore->Next = NULL;
// Allocate it's first block of storage
IPDataStore->FirstBlock = malloc(sizeof(struct DataStoreBlock));
IPDataStore->FirstBlock->LatestTimestamp = 0;
IPDataStore->FirstBlock->NumEntries = 0;
IPDataStore->FirstBlock->Data = calloc(IPDATAALLOCCHUNKS, sizeof(struct IPData));
IPDataStore->FirstBlock->Next = NULL;
if (!IPDataStore->FirstBlock || ! IPDataStore->FirstBlock->Data)
{
syslog(LOG_ERR, "Could not allocate datastore! Exiting!");
exit(1);
}
}
DataStore = IPDataStore;
// Take care of first case
while (DataStore) // Is not null
{
if (DataStore->ip == IPData->ip) // then we have the right store
{
DataStoreBlock = DataStore->FirstBlock;
while(DataStoreBlock) // is not null
{
if (DataStoreBlock->NumEntries < IPDATAALLOCCHUNKS) // We have a free spot
{
memcpy(&DataStoreBlock->Data[DataStoreBlock->NumEntries++], IPData, sizeof(struct IPData));
DataStoreBlock->LatestTimestamp = IPData->timestamp;
return;
}
else
{
if (!DataStoreBlock->Next) // there isn't another block, add one
{
DataStoreBlock->Next = malloc(sizeof(struct DataStoreBlock));
DataStoreBlock->Next->LatestTimestamp = 0;
DataStoreBlock->Next->NumEntries = 0;
DataStoreBlock->Next->Data = calloc(IPDATAALLOCCHUNKS, sizeof(struct IPData));
DataStoreBlock->Next->Next = NULL;
}
DataStoreBlock = DataStoreBlock->Next;
}
}
return;
}
else
{
if (!DataStore->Next) // there is no entry for this ip, so lets make one.
{
// Allocate Datastore for this IP
DataStore->Next = malloc(sizeof(struct IPDataStore));
DataStore->Next->ip = IPData->ip;
DataStore->Next->Next = NULL;
// Allocate it's first block of storage
DataStore->Next->FirstBlock = malloc(sizeof(struct DataStoreBlock));
DataStore->Next->FirstBlock->LatestTimestamp = 0;
DataStore->Next->FirstBlock->NumEntries = 0;
DataStore->Next->FirstBlock->Data = calloc(IPDATAALLOCCHUNKS, sizeof(struct IPData));
DataStore->Next->FirstBlock->Next = NULL;
}
DataStore = DataStore->Next;
}
}
}
void StoreIPDataInRam(struct IPData IncData[])
{
unsigned int counter;
for (counter=0; counter < IpCount; counter++)
_StoreIPDataInRam(&IncData[counter]);
}
void CommitData(time_t timestamp)
{
static int MayGraph = TRUE;
unsigned int counter;