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#include <stdlib.h>
#include "libglouglou.h"
#include "libggnet.h"
struct ggnet *
ggnet_new(void)
{
struct ggnet *net;
net = xcalloc(1, sizeof(struct ggnet));
return net;
}
void
ggnet_free(struct ggnet *net)
{
struct ggnet_conn *c, *ctmp;
struct ggnet_node *n, *ntmp;
LIST_FOREACH_SAFE(c, &net->conn_list, entry, ctmp)
ggnet_conn_del(net, c);
LIST_FOREACH_SAFE(n, &net->node_list, entry, ntmp)
ggnet_node_del(net, n);
free(net);
}
struct ggnet_node *
ggnet_node_add(struct ggnet *net, struct in_addr *addr)
{
struct ggnet_node *n;
gg_log_debug("ggnet_node_add");
n = xcalloc(1, sizeof(struct ggnet_node));
n->addr.s_addr = addr->s_addr;
n->namelen = NODENAME_WAITING;
n->lastseen = net->time;
LIST_INSERT_HEAD(&net->node_list, n, entry);
net->node_count++;
return n;
}
void
ggnet_node_del(struct ggnet *net, struct ggnet_node *n)
{
if (n->used)
gg_log_fatal("ggnet_node_del: trying to remove a used node !");
gg_log_debug("ggnet_node_del: ggnet_node_del");
LIST_REMOVE(n, entry);
free(n->name);
free(n);
net->node_count--;
}
struct ggnet_node *
ggnet_node_find(struct ggnet *net, struct in_addr *remote)
{
struct ggnet_node *n;
LIST_FOREACH(n, &net->node_list, entry)
if (n->addr.s_addr == remote->s_addr)
return n;
return NULL;
}
struct ggnet_conn *
ggnet_conn_add(struct ggnet *net, struct in_addr *src, int src_port,
struct in_addr *dst, int dst_port, int proto, int size)
{
struct ggnet_conn *c;
struct ggnet_node *srcnode;
struct ggnet_node *dstnode;
int id;
gg_log_debug("ggnet_conn_add, %x:%d->%x:%d %d [%d]",
src->s_addr, src_port, dst->s_addr, dst_port, proto, size);
if (net->conn_freeids_ptr == GGNET_CONN_FREEIDS_COUNT) {
gg_log_warn("ggnet_conn_add: out of connection identifiers !");
return NULL;
}
id = net->conn_freeids[net->conn_freeids_ptr];
net->conn_freeids_ptr++;
srcnode = ggnet_node_find(net, src);
if (!srcnode)
srcnode = ggnet_node_add(net, src);
srcnode->used++;
dstnode = ggnet_node_find(net, dst);
if (!dstnode)
dstnode = ggnet_node_add(net, dst);
dstnode->used++;
c = xmalloc(sizeof(struct ggnet_conn));
c->id = id;
c->state = CONNSTATE_ESTABLISHED;
c->src = srcnode;
c->src_port = src_port;
c->dst = dstnode;
c->dst_port = dst_port;
c->proto = proto;
c->size = size;
c->lastseen = net->time;
LIST_INSERT_HEAD(&net->conn_list, c, entry);
return c;
}
void
ggnet_conn_data(struct ggnet *net, struct ggnet_conn *c, int size, int response)
{
gg_log_debug("ggnet_conn_data");
if (!response)
c->size = c->size + size;
else
c->size_response = c->size_response + size;
c->lastseen = net->time;
}
void
ggnet_conn_del(struct ggnet *net, struct ggnet_conn *c)
{
gg_log_debug("ggnet_conn_del");
if (c->proto == IPPROTO_TCP) {
switch (c->state) {
case CONNSTATE_ESTABLISHED:
c->state = CONNSTATE_TCPFIN;
return;
case CONNSTATE_TCPFIN:
c->state = CONNSTATE_TCPFIN2;
return;
case CONNSTATE_TCPFIN2:
break;
}
}
if (net->conn_freeids_ptr == 0)
gg_log_fatal("net->conn_freeids_ptr == 0");
net->conn_freeids_ptr--;
net->conn_freeids[net->conn_freeids_ptr] = c->id;
c->src->used--;
c->dst->used--;
LIST_REMOVE(c, entry);
free(c);
}
struct ggnet_conn *
ggnet_conn_find(struct ggnet *net, struct in_addr *src, int src_port,
struct in_addr *dst, int dst_port, int proto, int *response)
{
struct ggnet_conn *c;
LIST_FOREACH(c, &net->conn_list, entry) {
if (((c->src->addr.s_addr == src->s_addr &&
c->src_port == src_port &&
c->dst->addr.s_addr == dst->s_addr &&
c->dst_port == dst_port) ||
(c->src->addr.s_addr == dst->s_addr &&
c->src_port == dst_port &&
c->dst->addr.s_addr == src->s_addr &&
c->dst_port == src_port)) &&
c->proto == proto) {
if (c->src->addr.s_addr == src->s_addr)
*response = 0;
else
*response = 1;
return c;
}
}
return NULL;
}
void
ggnet_time_update(struct ggnet *net, time_t time)
{
net->time = time;
}
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