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Add DCC passive-first + NAT mapping prefs

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This commit is contained in:
deepend-tildeclub
2026-05-25 19:16:10 -06:00
parent fb491a6bb2
commit 2622e4f7d6
5 changed files with 88 additions and 10 deletions
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84
src/common/dcc.c
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@@ -87,6 +87,41 @@ static gboolean dcc_read (GIOChannel *, GIOCondition, struct DCC *);
static gboolean dcc_read_ack (GIOChannel *source, GIOCondition condition, struct DCC *dcc);
static int dcc_check_timeouts (void);
static int
nat_map_run (int add, int port, int proto, int lease)
{
char cmd[512];
int status = 0;
if (add)
g_snprintf (cmd, sizeof (cmd), "upnpc -a 127.0.0.1 %d %d TCP %d >/dev/null 2>&1", port, port, lease);
else
g_snprintf (cmd, sizeof (cmd), "upnpc -d %d TCP >/dev/null 2>&1", port);
if (!g_spawn_command_line_sync (cmd, NULL, NULL, &status, NULL))
return FALSE;
return status == 0;
}
static void
dcc_nat_unmap (struct DCC *dcc)
{
if (!dcc->map_port)
return;
nat_map_run (0, dcc->map_port, dcc->type, 0);
dcc->map_port = 0;
dcc->map_next_refresh = 0;
}
static void
dcc_nat_refresh (struct DCC *dcc)
{
if (!dcc->map_port || prefs.hex_dcc_nat_lease <= 0)
return;
if (time (0) < dcc->map_next_refresh)
return;
if (nat_map_run (1, dcc->map_port, dcc->type, prefs.hex_dcc_nat_lease))
dcc->map_next_refresh = time (0) + prefs.hex_dcc_nat_lease / 2;
}
static int new_id(void)
{
static int id = 0;
@@ -254,7 +289,8 @@ dcc_check_timeouts (void)
switch (dcc->dccstat)
{
case STAT_ACTIVE:
dcc_calc_cps (dcc);
dcc_calc_cps (dcc);
dcc_nat_refresh (dcc);
fe_dcc_update (dcc);
if (dcc->type == TYPE_SEND || dcc->type == TYPE_RECV)
@@ -390,6 +426,7 @@ dcc_close (struct DCC *dcc, enum dcc_state dccstat, int destroy)
}
dcc_remove_from_sum (dcc);
dcc_nat_unmap (dcc);
if (dcc->fp != -1)
{
@@ -1698,6 +1735,11 @@ dcc_listen_init (struct DCC *dcc, session *sess)
getsockname (dcc->sok, (struct sockaddr *) &SAddr, &len);
dcc->port = ntohs (SAddr.sin_port);
if (prefs.hex_dcc_nat_map && nat_map_run (1, dcc->port, dcc->type, prefs.hex_dcc_nat_lease))
{
dcc->map_port = dcc->port;
dcc->map_next_refresh = time (0) + prefs.hex_dcc_nat_lease / 2;
}
dcc->addr = dcc_get_my_address (sess);
@@ -1846,8 +1888,19 @@ dcc_send (struct session *sess, char *to, char *filename, gint64 maxcps, int pas
return;
}
if (passive || dcc_listen_init (dcc, sess))
if ((passive || prefs.hex_dcc_passive_prefer) || dcc_listen_init (dcc, sess))
{
if (passive || prefs.hex_dcc_passive_prefer)
{
guint32 offer_addr = dcc_get_my_address (sess);
struct sockaddr_in saddr;
socklen_t slen = sizeof (saddr);
memset (&saddr, 0, sizeof (saddr));
getsockname (dcc->serv->sok, (struct sockaddr *) &saddr, &slen);
if (offer_addr == 0)
offer_addr = prefs.local_ip != 0xffffffff ? prefs.local_ip : saddr.sin_addr.s_addr;
dcc->addr = ntohl (offer_addr);
}
char havespaces = 0;
while (*filename)
{
@@ -1868,13 +1921,13 @@ dcc_send (struct session *sess, char *to, char *filename, gint64 maxcps, int pas
} else
fe_dcc_add (dcc);
if (passive)
if (passive || prefs.hex_dcc_passive_prefer)
{
dcc->pasvid = new_id();
g_snprintf (outbuf, sizeof (outbuf), (havespaces) ?
"DCC SEND \"%s\" 199 0 %" G_GUINT64_FORMAT " %d" :
"DCC SEND %s 199 0 %" G_GUINT64_FORMAT " %d",
file_part (dcc->file),
"DCC SEND \"%s\" %u 0 %" G_GUINT64_FORMAT " %d" :
"DCC SEND %s %u 0 %" G_GUINT64_FORMAT " %d",
file_part (dcc->file), dcc->addr,
dcc->size, dcc->pasvid);
}
else
@@ -2292,8 +2345,19 @@ dcc_chat (struct session *sess, char *nick, int passive)
dcc->dccstat = STAT_QUEUED;
dcc->type = TYPE_CHATSEND;
dcc->nick = g_strdup (nick);
if (passive || dcc_listen_init (dcc, sess))
if ((passive || prefs.hex_dcc_passive_prefer) || dcc_listen_init (dcc, sess))
{
if (passive || prefs.hex_dcc_passive_prefer)
{
guint32 offer_addr = dcc_get_my_address (sess);
struct sockaddr_in saddr;
socklen_t slen = sizeof (saddr);
memset (&saddr, 0, sizeof (saddr));
getsockname (dcc->serv->sok, (struct sockaddr *) &saddr, &slen);
if (offer_addr == 0)
offer_addr = prefs.local_ip != 0xffffffff ? prefs.local_ip : saddr.sin_addr.s_addr;
dcc->addr = ntohl (offer_addr);
}
if (prefs.hex_gui_autoopen_chat)
{
if (fe_dcc_open_chat_win (TRUE)) /* already open? add only */
@@ -2301,11 +2365,11 @@ dcc_chat (struct session *sess, char *nick, int passive)
} else
fe_dcc_add (dcc);
if (passive)
if (passive || prefs.hex_dcc_passive_prefer)
{
dcc->pasvid = new_id ();
g_snprintf (outbuf, sizeof (outbuf), "DCC CHAT chat 199 %d %d",
dcc->port, dcc->pasvid);
g_snprintf (outbuf, sizeof (outbuf), "DCC CHAT chat %u 0 %d",
dcc->addr, dcc->pasvid);
} else
{
g_snprintf (outbuf, sizeof (outbuf), "DCC CHAT chat %u %d",