#include "data_structures.h"
-#ifndef g_info
-#define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
-#endif
-
// TCP sequence numbers use clock arithmetic, these comparison functions take
// that into account
#define SEQ_LT(a,b) ((int32_t)((a)-(b)) < 0)
* Convert an IP address from 32 bit form to dotted quad
*
* Args:
- * str: A preallocated string of length >= 17
+ * str: A preallocated string of length >= 16
* addr: Address
*/
void convertIP(char* const str, const uint32_t addr)
{
- struct in_addr iaddr;
-
- iaddr.s_addr= htonl(addr);
- strcpy(str, inet_ntoa(iaddr));
+ strcpy(str, inet_ntoa((struct in_addr) {.s_addr= addr}));
}
*/
void printTCPSegment(const Message* const segment)
{
- char saddr[17], daddr[17];
+ char saddr[16], daddr[16];
SegmentKey* segmentKey;
g_assert(segment->inE->type == TCP);
destroyEvent(event);
}
+
/*
* Free the memory used by a base Event
*/
{
free((ConnectionKey*) data);
}
+
+
+/*
+ * A GHashFunc for g_hash_table_new()
+ *
+ * Args:
+ * key DatagramKey*
+ */
+guint ghfDatagramKeyHash(gconstpointer key)
+{
+ DatagramKey* datagramKey;
+ uint32_t a, b, c;
+
+ datagramKey= (DatagramKey*) key;
+
+ a= datagramKey->saddr;
+ b= datagramKey->daddr;
+ c= datagramKey->source + (datagramKey->dest << 16);
+ mix(a, b, c);
+
+ a+= datagramKey->ulen; // 16 bits left here
+ b+= *((uint32_t*) datagramKey->dataKey);
+ c+= *((uint32_t*) ((void*) datagramKey->dataKey + 4));
+ final(a, b, c);
+
+ return c;
+}
+
+
+/*
+ * A GEqualFunc for g_hash_table_new()
+ *
+ * Args:
+ * a, b DatagramKey*
+ *
+ * Returns:
+ * TRUE if both values are equal
+ */
+gboolean gefDatagramKeyEqual(gconstpointer a, gconstpointer b)
+{
+ const DatagramKey* dA, * dB;
+
+ dA= (DatagramKey*) a;
+ dB= (DatagramKey*) b;
+
+ if (dA->saddr == dB->saddr && dA->daddr == dB->daddr &&
+ dA->source == dB->source && dA->dest == dB->dest &&
+ dA->ulen == dB->ulen &&
+ memcmp(dA->dataKey, dB->dataKey, sizeof(dA->dataKey)) == 0)
+ {
+ return TRUE;
+ }
+ else
+ {
+ return FALSE;
+ }
+}
+
+
+/*
+ * A GDestroyNotify function for g_hash_table_new_full()
+ *
+ * Args:
+ * data: DatagramKey*
+ */
+void gdnDestroyDatagramKey(gpointer data)
+{
+ free((DatagramKey*) data);
+}
+
+
+/*
+ * A GDestroyNotify function for g_hash_table_new_full()
+ *
+ * Args:
+ * data: Broadcast*
+ */
+void gdnDestroyBroadcast(gpointer data)
+{
+ destroyBroadcast((Broadcast*) data);
+}
+
+
+/*
+ * Free a Broadcast struct and its associated ressources
+ *
+ * Args:
+ * broadcast: Broadcast*
+ */
+void destroyBroadcast(Broadcast* const broadcast)
+{
+ g_queue_foreach(broadcast->events, &gfDestroyEvent, NULL);
+ g_queue_free(broadcast->events);
+ free(broadcast);
+}
+
+
+/*
+ * A GFunc for g_queue_foreach()
+ *
+ * Args:
+ * data Event*
+ * user_data NULL
+ */
+void gfDestroyEvent(gpointer data, gpointer user_data)
+{
+ Event* event= data;
+
+ event->destroy(event);
+}
+
+
+/* Subtract two WallTime structs
+ *
+ * Args:
+ * tA, tB: WallTime
+ *
+ * Returns:
+ * The result of tA - tB, as a double. This may incur a loss of
+ * precision.
+ */
+double wallTimeSub(const WallTime const* tA, const WallTime const* tB)
+{
+ return (double) tA->seconds - tB->seconds + ((double) tA->nanosec - tB->nanosec) / 1e9;
+}
+
+
+/*
+ * Allocate and copy a base event
+ *
+ * Args:
+ * newEvent: new event, pointer will be updated
+ * event: event to copy
+ */
+void copyEvent(const Event* const event, Event** const newEvent)
+{
+ g_assert(event->event.tcpEvent == NULL);
+
+ *newEvent= malloc(sizeof(Event));
+ memcpy(*newEvent, event, sizeof(Event));
+}
+
+
+/*
+ * Allocate and copy a TCP event
+ *
+ * Args:
+ * newEvent: new event, pointer will be updated
+ * event: event to copy
+ */
+void copyTCPEvent(const Event* const event, Event** const newEvent)
+{
+ g_assert(event->type == TCP);
+
+ *newEvent= malloc(sizeof(Event));
+ memcpy(*newEvent, event, sizeof(Event));
+
+ (*newEvent)->event.tcpEvent= malloc(sizeof(TCPEvent));
+ memcpy((*newEvent)->event.tcpEvent, event->event.tcpEvent,
+ sizeof(TCPEvent));
+
+ (*newEvent)->event.tcpEvent->segmentKey= malloc(sizeof(SegmentKey));
+ memcpy((*newEvent)->event.tcpEvent->segmentKey,
+ event->event.tcpEvent->segmentKey, sizeof(SegmentKey));
+}
+
+
+/*
+ * Allocate and copy a UDP event
+ *
+ * Args:
+ * newEvent: new event, pointer will be updated
+ * event: event to copy
+ */
+void copyUDPEvent(const Event* const event, Event** const newEvent)
+{
+ g_assert(event->type == UDP);
+
+ *newEvent= malloc(sizeof(Event));
+ memcpy(*newEvent, event, sizeof(Event));
+
+ (*newEvent)->event.udpEvent= malloc(sizeof(UDPEvent));
+ memcpy((*newEvent)->event.udpEvent, event->event.udpEvent,
+ sizeof(UDPEvent));
+
+ (*newEvent)->event.udpEvent->datagramKey= malloc(sizeof(DatagramKey));
+ memcpy((*newEvent)->event.udpEvent->datagramKey,
+ event->event.udpEvent->datagramKey, sizeof(DatagramKey));
+}
+
+
+/*
+ * A GFunc for g_queue_foreach()
+ *
+ * Args:
+ * data Event*, event to add
+ * user_data GArray*, array to add to
+ */
+void gfAddEventToArray(gpointer data, gpointer user_data)
+{
+ g_array_append_val((GArray*) user_data, data);
+}
projects / lttv.git / blobdiff