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Give better warnings if connection_close_unattached_ap gets called twice or called on a marked connection; rename it to connection_mark_unattached_ap.

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svn:r3990
This commit is contained in:
Nick Mathewson
2005-04-02 22:11:24 +00:00
parent 4a90d37229
commit 055ee7c323
8 changed files with 52 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/or/circuitbuild.c
+1 -1
View File
@@ -723,7 +723,7 @@ int circuit_truncated(circuit_t *circ, crypt_path_t *layer) {
/* no need to send 'end' relay cells,
* because the other side's already dead
*/
connection_close_unattached_ap(stream, END_STREAM_REASON_DESTROY);
connection_mark_unattached_ap(stream, END_STREAM_REASON_DESTROY);
}
}
src/or/connection_edge.c
+33 -29
View File
@@ -25,21 +25,26 @@ static int address_is_in_virtual_range(const char *addr);
* has_sent_end to 1, and mark the conn.
*/
void
connection_close_unattached_ap(connection_t *conn, int endreason) {
_connection_mark_unattached_ap(connection_t *conn, int endreason,
int line, const char *file) {
tor_assert(conn->type == CONN_TYPE_AP);
conn->has_sent_end = 1; /* no circ yet */
if (conn->marked_for_close) {
log(LOG_WARN,"Duplicate call to connection_mark_unattached_ap at %s:%d (first marked at %s:%d)",
file, line,
conn->marked_for_close_file,conn->marked_for_close);
return;
}
if (!conn->socks_request->has_finished) {
socks5_reply_status_t socksreason =
connection_edge_end_reason_socks5_response(endreason);
//XXX Bug: it's not marked for close yet, so the below things won't
// be defined yet. -RD
if (endreason == END_STREAM_REASON_ALREADY_SOCKS_REPLIED)
log_fn(LOG_WARN,"Bug: stream (marked at %s:%d) sending two socks replies?",
conn->marked_for_close_file?conn->marked_for_close_file:"",
conn->marked_for_close);
file, line);
if (conn->socks_request->command == SOCKS_COMMAND_CONNECT)
connection_ap_handshake_socks_reply(conn, NULL, 0, socksreason);
@@ -47,10 +52,9 @@ connection_close_unattached_ap(connection_t *conn, int endreason) {
connection_ap_handshake_socks_resolved(conn,RESOLVED_TYPE_ERROR,0,NULL);
}
//XXX Bug: this means that marked-for-close-file and marked-for-close
// will all be defined as being inside this function. that's not what
// we had in mind. -RD
connection_mark_for_close(conn);
_connection_mark_for_close(conn);
conn->marked_for_close_file = file;
conn->marked_for_close = line;
conn->hold_open_until_flushed = 1;
}
@@ -146,7 +150,7 @@ int connection_edge_destroy(uint16_t circ_id, connection_t *conn) {
log_fn(LOG_INFO,"CircID %d: At an edge. Marking connection for close.",
circ_id);
if (conn->type == CONN_TYPE_AP) {
connection_close_unattached_ap(conn, END_STREAM_REASON_DESTROY);
connection_mark_unattached_ap(conn, END_STREAM_REASON_DESTROY);
} else {
conn->has_sent_end = 1; /* we're closing the circuit, nothing to send to */
connection_mark_for_close(conn);
@@ -316,7 +320,7 @@ void connection_ap_expire_beginning(void) {
if (conn->state == AP_CONN_STATE_CONTROLLER_WAIT) {
if (now - conn->timestamp_lastread >= 120) {
log_fn(LOG_NOTICE, "Closing unattached stream.");
connection_close_unattached_ap(conn, END_STREAM_REASON_TIMEOUT);
connection_mark_unattached_ap(conn, END_STREAM_REASON_TIMEOUT);
}
continue;
}
@@ -330,7 +334,7 @@ void connection_ap_expire_beginning(void) {
if (!circ) { /* it's vanished? */
log_fn(LOG_INFO,"Conn is waiting (address %s), but lost its circ.",
conn->socks_request->address);
connection_close_unattached_ap(conn, END_STREAM_REASON_TIMEOUT);
connection_mark_unattached_ap(conn, END_STREAM_REASON_TIMEOUT);
continue;
}
if (circ->purpose == CIRCUIT_PURPOSE_C_REND_JOINED) {
@@ -338,7 +342,7 @@ void connection_ap_expire_beginning(void) {
log_fn(LOG_NOTICE,"Rend stream is %d seconds late. Giving up on address '%s'.",
(int)(now - conn->timestamp_lastread), conn->socks_request->address);
connection_edge_end(conn, END_STREAM_REASON_TIMEOUT, conn->cpath_layer);
connection_close_unattached_ap(conn, END_STREAM_REASON_TIMEOUT);
connection_mark_unattached_ap(conn, END_STREAM_REASON_TIMEOUT);
}
continue;
}
@@ -359,7 +363,7 @@ void connection_ap_expire_beginning(void) {
conn->timestamp_lastread += 15;
/* move it back into 'pending' state, and try to attach. */
if (connection_ap_detach_retriable(conn, circ)<0) {
connection_close_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH);
connection_mark_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH);
}
} /* end for */
}
@@ -382,7 +386,7 @@ void connection_ap_attach_pending(void)
conn->state != AP_CONN_STATE_CIRCUIT_WAIT)
continue;
if (connection_ap_handshake_attach_circuit(conn) < 0) {
connection_close_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH);
connection_mark_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH);
}
}
}
@@ -883,7 +887,7 @@ static int connection_ap_handshake_process_socks(connection_t *conn) {
log_fn(LOG_WARN,"Fetching socks handshake failed. Closing.");
connection_ap_handshake_socks_reply(conn, NULL, 0, SOCKS5_GENERAL_ERROR);
}
connection_close_unattached_ap(conn, END_STREAM_REASON_ALREADY_SOCKS_REPLIED);
connection_mark_unattached_ap(conn, END_STREAM_REASON_ALREADY_SOCKS_REPLIED);
return -1;
} /* else socks handshake is done, continue processing */
@@ -900,7 +904,7 @@ static int connection_ap_handshake_process_socks(connection_t *conn) {
*/
log_fn(LOG_WARN,"Missing mapping for virtual address '%s'. Refusing.",
socks->address);
connection_close_unattached_ap(conn, END_STREAM_REASON_INTERNAL);
connection_mark_unattached_ap(conn, END_STREAM_REASON_INTERNAL);
return -1;
}
@@ -914,7 +918,7 @@ static int connection_ap_handshake_process_socks(connection_t *conn) {
char *s = strrchr(socks->address,'.');
if (!s || s[1] == '\0') {
log_fn(LOG_WARN,"Malformed exit address '%s'. Refusing.", socks->address);
connection_close_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
connection_mark_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
return -1;
}
conn->chosen_exit_name = tor_strdup(s+1);
@@ -926,7 +930,7 @@ static int connection_ap_handshake_process_socks(connection_t *conn) {
if (address_is_invalid_destination(socks->address)) {
log_fn(LOG_WARN,"Destination '%s' seems to be an invalid hostname. Failing.", socks->address);
connection_close_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
connection_mark_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
return -1;
}
@@ -937,14 +941,14 @@ static int connection_ap_handshake_process_socks(connection_t *conn) {
if (strlen(socks->address) > RELAY_PAYLOAD_SIZE) {
log_fn(LOG_WARN,"Address to be resolved is too large. Failing.");
connection_ap_handshake_socks_resolved(conn,RESOLVED_TYPE_ERROR,0,NULL);
connection_close_unattached_ap(conn, END_STREAM_REASON_ALREADY_SOCKS_REPLIED);
connection_mark_unattached_ap(conn, END_STREAM_REASON_ALREADY_SOCKS_REPLIED);
return -1;
}
if (tor_inet_aton(socks->address, &in)) { /* see if it's an IP already */
answer = in.s_addr;
connection_ap_handshake_socks_resolved(conn,RESOLVED_TYPE_IPV4,4,
(char*)&answer);
connection_close_unattached_ap(conn, END_STREAM_REASON_ALREADY_SOCKS_REPLIED);
connection_mark_unattached_ap(conn, END_STREAM_REASON_ALREADY_SOCKS_REPLIED);
return 0;
}
rep_hist_note_used_resolve(time(NULL)); /* help predict this next time */
@@ -952,7 +956,7 @@ static int connection_ap_handshake_process_socks(connection_t *conn) {
} else { /* socks->command == SOCKS_COMMAND_CONNECT */
if (socks->port == 0) {
log_fn(LOG_NOTICE,"Application asked to connect to port 0. Refusing.");
connection_close_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
connection_mark_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
return -1;
}
rep_hist_note_used_port(socks->port, time(NULL)); /* help predict this next time */
@@ -961,7 +965,7 @@ static int connection_ap_handshake_process_socks(connection_t *conn) {
if (! get_options()->LeaveStreamsUnattached) {
conn->state = AP_CONN_STATE_CIRCUIT_WAIT;
if (connection_ap_handshake_attach_circuit(conn) < 0) {
connection_close_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH);
connection_mark_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH);
return -1;
}
return 0;
@@ -979,7 +983,7 @@ static int connection_ap_handshake_process_socks(connection_t *conn) {
* building all the circuits and then realizing it won't work. */
log_fn(LOG_WARN,"Resolve requests to hidden services not allowed. Failing.");
connection_ap_handshake_socks_resolved(conn,RESOLVED_TYPE_ERROR,0,NULL);
connection_close_unattached_ap(conn, END_STREAM_REASON_ALREADY_SOCKS_REPLIED);
connection_mark_unattached_ap(conn, END_STREAM_REASON_ALREADY_SOCKS_REPLIED);
return -1;
}
@@ -989,7 +993,7 @@ static int connection_ap_handshake_process_socks(connection_t *conn) {
r = rend_cache_lookup_entry(conn->rend_query, &entry);
if (r<0) {
log_fn(LOG_WARN,"Invalid service descriptor %s", conn->rend_query);
connection_close_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
connection_mark_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
return -1;
}
if (r==0) {
@@ -1004,7 +1008,7 @@ static int connection_ap_handshake_process_socks(connection_t *conn) {
conn->state = AP_CONN_STATE_CIRCUIT_WAIT;
log_fn(LOG_INFO, "Descriptor is here and fresh enough. Great.");
if (connection_ap_handshake_attach_circuit(conn) < 0) {
connection_close_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH);
connection_mark_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH);
return -1;
}
return 0;
@@ -1058,7 +1062,7 @@ int connection_ap_handshake_send_begin(connection_t *ap_conn, circuit_t *circ)
ap_conn->stream_id = get_unique_stream_id_by_circ(circ);
if (ap_conn->stream_id==0) {
connection_close_unattached_ap(ap_conn, END_STREAM_REASON_INTERNAL);
connection_mark_unattached_ap(ap_conn, END_STREAM_REASON_INTERNAL);
circuit_mark_for_close(circ);
return -1;
}
@@ -1102,7 +1106,7 @@ int connection_ap_handshake_send_resolve(connection_t *ap_conn, circuit_t *circ)
ap_conn->stream_id = get_unique_stream_id_by_circ(circ);
if (ap_conn->stream_id==0) {
connection_close_unattached_ap(ap_conn, END_STREAM_REASON_INTERNAL);
connection_mark_unattached_ap(ap_conn, END_STREAM_REASON_INTERNAL);
circuit_mark_for_close(circ);
return -1;
}
@@ -1173,7 +1177,7 @@ int connection_ap_make_bridge(char *address, uint16_t port) {
/* attaching to a dirty circuit is fine */
if (connection_ap_handshake_attach_circuit(conn) < 0) {
connection_close_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH);
connection_mark_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH);
tor_close_socket(fd[1]);
return -1;
}
src/or/control.c
+2 -2
View File
@@ -738,7 +738,7 @@ static int handle_control_attachstream(connection_t *conn, uint32_t len,
if (!circ_id) {
ap_conn->state = AP_CONN_STATE_CIRCUIT_WAIT;
if (connection_ap_handshake_attach_circuit(ap_conn)<0)
connection_close_unattached_ap(ap_conn, END_STREAM_REASON_CANT_ATTACH);
connection_mark_unattached_ap(ap_conn, END_STREAM_REASON_CANT_ATTACH);
send_control_done(conn);
return 0;
}
@@ -826,7 +826,7 @@ handle_control_closestream(connection_t *conn, uint32_t len,
"No AP connection found with given ID");
return 0;
}
connection_close_unattached_ap(ap_conn, reason);
connection_mark_unattached_ap(ap_conn, reason);
send_control_done(conn);
return 0;
}
src/or/hibernate.c
+1 -1
View File
@@ -742,7 +742,7 @@ hibernate_go_dormant(time_t now) {
conn->cpath_layer);
log_fn(LOG_INFO,"Closing conn type %d", conn->type);
if (conn->type == CONN_TYPE_AP) /* send socks failure if needed */
connection_close_unattached_ap(conn, END_STREAM_REASON_HIBERNATING);
connection_mark_unattached_ap(conn, END_STREAM_REASON_HIBERNATING);
else
connection_mark_for_close(conn);
}
src/or/main.c
+1 -1
View File
@@ -478,7 +478,7 @@ void directory_all_unreachable(time_t now) {
AP_CONN_STATE_CIRCUIT_WAIT))) {
log_fn(LOG_NOTICE,"Network down? Failing connection to '%s:%d'.",
conn->socks_request->address, conn->socks_request->port);
connection_close_unattached_ap(conn, END_STREAM_REASON_NET_UNREACHABLE);
connection_mark_unattached_ap(conn, END_STREAM_REASON_NET_UNREACHABLE);
}
}
src/or/or.h
+6 -1
View File
@@ -1324,7 +1324,12 @@ int connection_or_nonopen_was_started_here(connection_t *conn);
/********************************* connection_edge.c ***************************/
void connection_close_unattached_ap(connection_t *conn, int endreason);
#define connection_mark_unattached_ap(conn, endreason) \
do { _connection_mark_unattached_ap(conn, endreason, __LINE__, _SHORT_FILE_);\
} while (0)
void _connection_mark_unattached_ap(connection_t *conn, int endreason,
int line, const char *file);
int connection_edge_reached_eof(connection_t *conn);
int connection_edge_process_inbuf(connection_t *conn, int package_partial);
int connection_edge_destroy(uint16_t circ_id, connection_t *conn);
src/or/relay.c
+6 -6
View File
@@ -417,7 +417,7 @@ int connection_edge_send_command(connection_t *fromconn, circuit_t *circ,
log_fn(LOG_WARN,"no circ. Closing conn.");
tor_assert(fromconn);
if (fromconn->type == CONN_TYPE_AP) {
connection_close_unattached_ap(fromconn, END_STREAM_REASON_INTERNAL);
connection_mark_unattached_ap(fromconn, END_STREAM_REASON_INTERNAL);
} else {
fromconn->has_sent_end = 1; /* no circ to send to */
connection_mark_for_close(fromconn);
@@ -614,7 +614,7 @@ connection_edge_process_relay_cell_not_open(
} else {
log_fn(LOG_INFO,"Address '%s' resolved to 0.0.0.0. Closing,",
conn->socks_request->address);
connection_close_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
connection_mark_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
return 0;
}
client_dns_set_addressmap(conn->socks_request->address, addr,
@@ -669,7 +669,7 @@ connection_edge_process_relay_cell_not_open(
if (CIRCUIT_IS_ORIGIN(circ))
circuit_log_path(LOG_INFO,circ);
if (conn->type == CONN_TYPE_AP) {
connection_close_unattached_ap(conn,
connection_mark_unattached_ap(conn,
*(char *)(cell->payload+RELAY_HEADER_SIZE));
} else {
conn->has_sent_end = 1; /* we just got an 'end', don't need to send one */
@@ -692,7 +692,7 @@ connection_edge_process_relay_cell_not_open(
if (!addr) {
log_fn(LOG_INFO,"...but it claims the IP address was 0.0.0.0. Closing.");
connection_edge_end(conn, END_STREAM_REASON_TORPROTOCOL, conn->cpath_layer);
connection_close_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
connection_mark_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
return 0;
}
client_dns_set_addressmap(conn->socks_request->address, addr,
@@ -716,14 +716,14 @@ connection_edge_process_relay_cell_not_open(
tor_assert(conn->socks_request->command == SOCKS_COMMAND_RESOLVE);
if (rh->length < 2 || cell->payload[RELAY_HEADER_SIZE+1]+2>rh->length) {
log_fn(LOG_WARN, "Dropping malformed 'resolved' cell");
connection_close_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
connection_mark_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL);
return 0;
}
connection_ap_handshake_socks_resolved(conn,
cell->payload[RELAY_HEADER_SIZE], /*answer_type*/
cell->payload[RELAY_HEADER_SIZE+1], /*answer_len*/
cell->payload+RELAY_HEADER_SIZE+2); /* answer */
connection_close_unattached_ap(conn, END_STREAM_REASON_ALREADY_SOCKS_REPLIED);
connection_mark_unattached_ap(conn, END_STREAM_REASON_ALREADY_SOCKS_REPLIED);
return 0;
}
src/or/rendclient.c
+2 -2
View File
@@ -394,12 +394,12 @@ void rend_client_desc_here(char *query) {
if (connection_ap_handshake_attach_circuit(conn) < 0) {
/* it will never work */
log_fn(LOG_WARN,"attaching to a rend circ failed. Closing conn.");
connection_close_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH);
connection_mark_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH);
}
tor_assert(conn->state != AP_CONN_STATE_RENDDESC_WAIT); /* avoid loop */
} else { /* 404, or fetch didn't get that far */
log_fn(LOG_NOTICE,"Closing stream for '%s.onion': hidden service is unavailable (try again later).", query);
connection_close_unattached_ap(conn, END_STREAM_REASON_TIMEOUT);
connection_mark_unattached_ap(conn, END_STREAM_REASON_TIMEOUT);
}
}
}