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Actually make connections to HSes on AF_UNIX sockets

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This commit is contained in:
Andrea Shepard 2015-01-27 13:12:40 +00:00 committed by Nick Mathewson
parent ca5ba2956b
commit bce824a9ad
1 changed files with 41 additions and 26 deletions
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67
src/or/rendservice.c
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@ -3485,7 +3485,9 @@ rend_service_set_connection_addr_port(edge_connection_t *conn,
char serviceid[REND_SERVICE_ID_LEN_BASE32+1];
smartlist_t *matching_ports;
rend_service_port_config_t *chosen_port;
int unix_addrs;
#ifndef HAVE_SYS_UN_H
int unix_addrs_rejected;
#endif /* !defined(HAVE_SYS_UN_H) */
tor_assert(circ->base_.purpose == CIRCUIT_PURPOSE_S_REND_JOINED);
tor_assert(circ->rend_data);
@ -3501,45 +3503,58 @@ rend_service_set_connection_addr_port(edge_connection_t *conn,
return -2;
}
matching_ports = smartlist_new();
unix_addrs = 0;
#ifndef HAVE_SYS_UN_H
unix_addrs_rejected = 0;
#endif /* !defined(HAVE_SYS_UN_H) */
SMARTLIST_FOREACH(service->ports, rend_service_port_config_t *, p,
{
/*
* TODO don't just ignore AF_UNIX ports, but set up edge_connection_t
* properly to use them.
*/
if (conn->base_.port == p->virtual_port) {
#ifdef HAVE_SYS_UN_H
smartlist_add(matching_ports, p);
#else
if (!(p->is_unix_addr)) {
smartlist_add(matching_ports, p);
} else {
++unix_addrs;
if (unix_addrs_rejected == 0) {
/* If we have no support, bitch about it for just the first one */
log_warn(LD_REND,
"Saw AF_UNIX virtual port mapping for port %d on service "
"%s, which is unsupported on this platform. Ignoring it.",
conn->base_.port, serviceid);
}
++unix_addrs_rejected;
}
#endif /* defined(HAVE_SYS_UN_H) */
}
});
chosen_port = smartlist_choose(matching_ports);
smartlist_free(matching_ports);
if (chosen_port) {
tor_addr_copy(&conn->base_.addr, &chosen_port->real_addr);
conn->base_.port = chosen_port->real_port;
#ifdef HAVE_SYS_UN_H
if (!(chosen_port->is_unix_addr)) {
#else
{
#endif /* defined(HAVE_SYS_UN_H) */
/* Get a non-AF_UNIX connection ready for connection_exit_connect() */
tor_addr_copy(&conn->base_.addr, &chosen_port->real_addr);
conn->base_.port = chosen_port->real_port;
#ifdef HAVE_SYS_UN_H
} else {
/* Get an AF_UNIX connection ready for connection_exit_connect() */
conn->base_.socket_family = AF_UNIX;
tor_addr_make_unspec(&conn->base_.addr);
conn->base_.port = 1;
conn->base_.address = tor_strdup(chosen_port->unix_addr);
#endif /* defined(HAVE_SYS_UN_H) */
}
return 0;
}
if (!unix_addrs) {
log_info(LD_REND,
"No virtual port mapping exists for port %d on service %s",
conn->base_.port, serviceid);
} else {
#ifdef HAVE_SYS_UN_H
log_info(LD_REND,
"Only AF_UNIX virtual port mappings exists for port %d "
"on service %s, and support is not yet implemented",
conn->base_.port, serviceid);
#else
log_info(LD_REND,
"Only AF_UNIX virtual port mappings exists for port %d "
"on service %s, and support is not available on this platform",
conn->base_.port, serviceid);
#endif /* defined(HAVE_SYS_UN_H) */
}
log_info(LD_REND,
"No virtual port mapping exists for port %d on service %s",
conn->base_.port, serviceid);
if (service->allow_unknown_ports)
return -1;
else