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Merge branch 'bug18357_v2'

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This commit is contained in:
Nick Mathewson 2016-10-14 09:10:34 -04:00
commit d2ab58c48d
2 changed files with 34 additions and 7 deletions
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5
changes/bug18357 Normal file
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@ -0,0 +1,5 @@
o Minor bugfixes (hidden service):
- Allow hidden services to run on IPv6 addresses even when the
IPv6Exit option is not set. Fixes bug 18357; bugfix on
0.2.4.7-alpha.

36
src/or/connection_edge.c
View File

@ -3218,6 +3218,24 @@ connection_exit_begin_resolve(cell_t *cell, or_circuit_t *circ)
return 0;
}
/** Helper: Return true and set *<b>why_rejected</b> to an optional clarifying
* message message iff we do not allow connections to <b>addr</b>:<b>port</b>.
*/
static int
my_exit_policy_rejects(const tor_addr_t *addr,
uint16_t port,
const char **why_rejected)
{
if (router_compare_to_my_exit_policy(addr, port)) {
*why_rejected = "";
return 1;
} else if (tor_addr_family(addr) == AF_INET6 && !get_options()->IPv6Exit) {
*why_rejected = " (IPv6 address without IPv6Exit configured)";
return 1;
}
return 0;
}
/** Connect to conn's specified addr and port. If it worked, conn
* has now been added to the connection_array.
*
@ -3232,14 +3250,18 @@ connection_exit_connect(edge_connection_t *edge_conn)
uint16_t port;
connection_t *conn = TO_CONN(edge_conn);
int socket_error = 0, result;
const char *why_failed_exit_policy = NULL;
if ( (!connection_edge_is_rendezvous_stream(edge_conn) &&
router_compare_to_my_exit_policy(&edge_conn->base_.addr,
edge_conn->base_.port)) ||
(tor_addr_family(&conn->addr) == AF_INET6 &&
! get_options()->IPv6Exit)) {
log_info(LD_EXIT,"%s:%d failed exit policy. Closing.",
escaped_safe_str_client(conn->address), conn->port);
/* Apply exit policy to non-rendezvous connections. */
if (! connection_edge_is_rendezvous_stream(edge_conn) &&
my_exit_policy_rejects(&edge_conn->base_.addr,
edge_conn->base_.port,
&why_failed_exit_policy)) {
if (BUG(!why_failed_exit_policy))
why_failed_exit_policy = "";
log_info(LD_EXIT,"%s:%d failed exit policy%s. Closing.",
escaped_safe_str_client(conn->address), conn->port,
why_failed_exit_policy);
connection_edge_end(edge_conn, END_STREAM_REASON_EXITPOLICY);
circuit_detach_stream(circuit_get_by_edge_conn(edge_conn), edge_conn);
connection_free(conn);