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When launching a resolve request on behalf of an AF_UNIX control, omit the address field of the new entry connection. Fixes bug 8639.

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This commit is contained in:
Andrea Shepard 2013-05-31 15:35:51 -07:00
parent 30c06c187a
commit ce147a2a9a
3 changed files with 35 additions and 2 deletions
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5
changes/bug8639 Normal file
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@ -0,0 +1,5 @@
o Normal bugfixes:
- When launching a resolve request on behalf of an AF_UNIX control
socket, omit the address field of the new entry connection, used in
subsequent controller events, rather than letting tor_dup_addr() set
it to "<unknown address type>". Fixes bug 8639.

13
src/or/control.c
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@ -3743,8 +3743,21 @@ control_event_stream_status(entry_connection_t *conn, stream_status_event_t tp,
}
if (tp == STREAM_EVENT_NEW || tp == STREAM_EVENT_NEW_RESOLVE) {
/*
* When the control conn is an AF_UNIX socket and we have no address,
* it gets set to "(Tor_internal)"; see dnsserv_launch_request() in
* dnsserv.c.
*/
if (strcmp(ENTRY_TO_CONN(conn)->address, "(Tor_internal)") != 0) {
tor_snprintf(addrport_buf,sizeof(addrport_buf), " SOURCE_ADDR=%s:%d",
ENTRY_TO_CONN(conn)->address, ENTRY_TO_CONN(conn)->port);
} else {
/*
* else leave it blank so control on AF_UNIX doesn't need to make
* something up.
*/
addrport_buf[0] = '\0';
}
} else {
addrport_buf[0] = '\0';
}

15
src/or/dnsserv.c
View File

@ -183,8 +183,23 @@ dnsserv_launch_request(const char *name, int reverse,
conn->base_.state = AP_CONN_STATE_RESOLVE_WAIT;
tor_addr_copy(&TO_CONN(conn)->addr, &control_conn->base_.addr);
#ifdef AF_UNIX
/*
* The control connection can be AF_UNIX and if so tor_dup_addr will
* unhelpfully say "<unknown address type>"; say "(Tor_internal)"
* instead.
*/
if (control_conn->base_.socket_family == AF_UNIX) {
TO_CONN(conn)->port = 0;
TO_CONN(conn)->address = tor_strdup("(Tor_internal)");
} else {
TO_CONN(conn)->port = control_conn->base_.port;
TO_CONN(conn)->address = tor_dup_addr(&control_conn->base_.addr);
}
#else
TO_CONN(conn)->port = control_conn->base_.port;
TO_CONN(conn)->address = tor_dup_addr(&control_conn->base_.addr);
#endif
if (reverse)
entry_conn->socks_request->command = SOCKS_COMMAND_RESOLVE_PTR;