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Import Upstream version 1.0.35

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This commit is contained in:
Guus Sliepen 2019-08-26 13:44:49 +02:00
parent b28bb7b29b
commit a04a7bcd67
44 changed files with 4173 additions and 2323 deletions
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24
src/net.c
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@ -180,6 +180,22 @@ static int build_fdset(fd_set *readset, fd_set *writeset) {
return max;
}
/* Put a misbehaving connection in the tarpit */
void tarpit(int fd) {
static int pits[10] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1};
static int next_pit = 0;
if(pits[next_pit] != -1) {
closesocket(pits[next_pit]);
}
pits[next_pit++] = fd;
if(next_pit >= (int)(sizeof pits / sizeof pits[0])) {
next_pit = 0;
}
}
/*
Terminate a connection:
- Close the socket
@ -203,7 +219,11 @@ void terminate_connection(connection_t *c, bool report) {
}
if(c->socket) {
closesocket(c->socket);
if(c->status.tarpit) {
tarpit(c->socket);
} else {
closesocket(c->socket);
}
}
if(c->edge) {
@ -299,6 +319,7 @@ static void check_dead_connections(void) {
closesocket(c->socket);
do_outgoing_connection(c);
} else {
c->status.tarpit = true;
terminate_connection(c, false);
}
}
@ -380,6 +401,7 @@ static void check_network_activity(fd_set *readset, fd_set *writeset) {
if(FD_ISSET(c->socket, readset)) {
if(!receive_meta(c)) {
c->status.tarpit = true;
terminate_connection(c, c->status.active);
continue;
}