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[tor-commits] [tor/master] Collapse channel_get_*_remote_addr() into a single function.



commit ab428ef60b701075158f1c06676bcc394f0969b2
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Tue Jul 14 14:28:33 2020 -0400

    Collapse channel_get_*_remote_addr() into a single function.
    
    Since we can list the real address and the canonical one in a
    human-readable format we don't need to pick.
---
 src/core/or/channel.c                  | 26 +++++---------------------
 src/core/or/channel.h                  |  3 +--
 src/core/or/channelpadding.c           |  4 ++--
 src/core/or/channeltls.c               |  2 +-
 src/core/or/circuitbuild.c             |  2 +-
 src/core/or/circuitlist.c              |  2 +-
 src/core/or/circuituse.c               |  4 ++--
 src/core/or/command.c                  | 12 ++++++------
 src/core/or/connection_edge.c          |  2 +-
 src/feature/relay/circuitbuild_relay.c |  2 +-
 src/test/test_circuitbuild.c           |  4 ++--
 11 files changed, 23 insertions(+), 40 deletions(-)

diff --git a/src/core/or/channel.c b/src/core/or/channel.c
index 2de164b39c..8390fc1ecc 100644
--- a/src/core/or/channel.c
+++ b/src/core/or/channel.c
@@ -2553,7 +2553,7 @@ channel_dump_statistics, (channel_t *chan, int severity))
   /* Handle remote address and descriptions */
   have_remote_addr = channel_get_addr_if_possible(chan, &remote_addr);
   if (have_remote_addr) {
-    char *actual = tor_strdup(channel_get_actual_remote_descr(chan));
+    char *actual = tor_strdup(channel_describe_peer(chan));
     remote_addr_str = tor_addr_to_str_dup(&remote_addr);
     tor_log(severity, LD_GENERAL,
         " * Channel %"PRIu64 " says its remote address"
@@ -2561,18 +2561,18 @@ channel_dump_statistics, (channel_t *chan, int severity))
         "actual description of \"%s\"",
         (chan->global_identifier),
         safe_str(remote_addr_str),
-        safe_str(channel_get_canonical_remote_descr(chan)),
+        safe_str(channel_describe_peer(chan)),
         safe_str(actual));
     tor_free(remote_addr_str);
     tor_free(actual);
   } else {
-    char *actual = tor_strdup(channel_get_actual_remote_descr(chan));
+    char *actual = tor_strdup(channel_describe_peer(chan));
     tor_log(severity, LD_GENERAL,
         " * Channel %"PRIu64 " does not know its remote "
         "address, but gives a canonical description of \"%s\" and an "
         "actual description of \"%s\"",
         (chan->global_identifier),
-        channel_get_canonical_remote_descr(chan),
+        channel_describe_peer(chan),
         actual);
     tor_free(actual);
   }
@@ -2781,22 +2781,6 @@ channel_listener_dump_transport_statistics(channel_listener_t *chan_l,
   if (chan_l->dumpstats) chan_l->dumpstats(chan_l, severity);
 }
 
-/**
- * Return text description of the remote endpoint.
- *
- * This function return a test provided by the lower layer of the remote
- * endpoint for this channel; it should specify the actual address connected
- * to/from.
- *
- * Subsequent calls to channel_get_{actual,canonical}_remote_{address,descr}
- * may invalidate the return value from this function.
- */
-const char *
-channel_get_actual_remote_descr(channel_t *chan)
-{
-  return channel_get_canonical_remote_descr(chan);
-}
-
 /**
  * Return text description of the remote endpoint canonical address.
  *
@@ -2806,7 +2790,7 @@ channel_get_actual_remote_descr(channel_t *chan)
  * Subsequent calls to this function may invalidate its return value.
  */
 MOCK_IMPL(const char *,
-channel_get_canonical_remote_descr,(channel_t *chan))
+channel_describe_peer,(channel_t *chan))
 {
   tor_assert(chan);
   tor_assert(chan->describe_peer);
diff --git a/src/core/or/channel.h b/src/core/or/channel.h
index 917941a0b6..d52ebdf619 100644
--- a/src/core/or/channel.h
+++ b/src/core/or/channel.h
@@ -718,10 +718,9 @@ channel_is_in_state(channel_t *chan, channel_state_t state)
 const char * channel_describe_transport(channel_t *chan);
 MOCK_DECL(void, channel_dump_statistics, (channel_t *chan, int severity));
 void channel_dump_transport_statistics(channel_t *chan, int severity);
-const char * channel_get_actual_remote_descr(channel_t *chan);
 MOCK_DECL(int, channel_get_addr_if_possible, (const channel_t *chan,
                                               tor_addr_t *addr_out));
-MOCK_DECL(const char *, channel_get_canonical_remote_descr,(channel_t *chan));
+MOCK_DECL(const char *, channel_describe_peer,(channel_t *chan));
 int channel_has_queued_writes(channel_t *chan);
 int channel_is_bad_for_new_circs(channel_t *chan);
 void channel_mark_bad_for_new_circs(channel_t *chan);
diff --git a/src/core/or/channelpadding.c b/src/core/or/channelpadding.c
index 0e88b8b3bd..d0c43e8bdc 100644
--- a/src/core/or/channelpadding.c
+++ b/src/core/or/channelpadding.c
@@ -265,7 +265,7 @@ channelpadding_update_padding_for_channel(channel_t *chan,
     log_fn_ratelim(&relay_limit,LOG_PROTOCOL_WARN,LD_PROTOCOL,
            "Got a PADDING_NEGOTIATE from relay at %s (%s). "
            "This should not happen.",
-           channel_get_canonical_remote_descr(chan),
+           channel_describe_peer(chan),
            hex_str(chan->identity_digest, DIGEST_LEN));
     return -1;
   }
@@ -399,7 +399,7 @@ channelpadding_send_padding_cell_for_callback(channel_t *chan)
         "Sending netflow keepalive on %"PRIu64" to %s (%s) after "
         "%"PRId64" ms. Delta %"PRId64"ms",
         (chan->global_identifier),
-        safe_str_client(channel_get_canonical_remote_descr(chan)),
+        safe_str_client(channel_describe_peer(chan)),
         safe_str_client(hex_str(chan->identity_digest, DIGEST_LEN)),
         (monotime_coarse_diff_msec(&chan->timestamp_xfer,&now)),
         (
diff --git a/src/core/or/channeltls.c b/src/core/or/channeltls.c
index ade26684b8..082a035c3c 100644
--- a/src/core/or/channeltls.c
+++ b/src/core/or/channeltls.c
@@ -1874,7 +1874,7 @@ channel_tls_process_netinfo_cell(cell_t *cell, channel_tls_t *chan)
 
   if (me && !TLS_CHAN_TO_BASE(chan)->is_canonical_to_peer &&
       channel_is_canonical(TLS_CHAN_TO_BASE(chan))) {
-    const char *descr = channel_get_actual_remote_descr(
+    const char *descr = channel_describe_peer(
                                                     TLS_CHAN_TO_BASE(chan));
     log_info(LD_OR,
              "We made a connection to a relay at %s (fp=%s) but we think "
diff --git a/src/core/or/circuitbuild.c b/src/core/or/circuitbuild.c
index fd56ca1c65..6ad19eebad 100644
--- a/src/core/or/circuitbuild.c
+++ b/src/core/or/circuitbuild.c
@@ -632,7 +632,7 @@ circuit_n_chan_done(channel_t *chan, int status, int close_origin_circuits)
   tor_assert(chan);
 
   log_debug(LD_CIRC,"chan to %s, status=%d",
-            channel_get_canonical_remote_descr(chan), status);
+            channel_describe_peer(chan), status);
 
   pending_circs = smartlist_new();
   circuit_get_all_pending_on_channel(pending_circs, chan);
diff --git a/src/core/or/circuitlist.c b/src/core/or/circuitlist.c
index 2455aa8779..af98af362a 100644
--- a/src/core/or/circuitlist.c
+++ b/src/core/or/circuitlist.c
@@ -619,7 +619,7 @@ circuit_count_pending_on_channel(channel_t *chan)
   cnt = smartlist_len(sl);
   smartlist_free(sl);
   log_debug(LD_CIRC,"or_conn to %s, %d pending circs",
-            channel_get_canonical_remote_descr(chan),
+            channel_describe_peer(chan),
             cnt);
   return cnt;
 }
diff --git a/src/core/or/circuituse.c b/src/core/or/circuituse.c
index d2bdf77d8d..3c8a7c4a89 100644
--- a/src/core/or/circuituse.c
+++ b/src/core/or/circuituse.c
@@ -819,7 +819,7 @@ circuit_expire_building(void)
       log_info(LD_CIRC,
                "Abandoning circ %u %s:%u (state %d,%d:%s, purpose %d, "
                "len %d)", TO_ORIGIN_CIRCUIT(victim)->global_identifier,
-               channel_get_canonical_remote_descr(victim->n_chan),
+               channel_describe_peer(victim->n_chan),
                (unsigned)victim->n_circ_id,
                TO_ORIGIN_CIRCUIT(victim)->has_opened,
                victim->state, circuit_state_to_string(victim->state),
@@ -1857,7 +1857,7 @@ circuit_build_failed(origin_circuit_t *circ)
                "from the first hop (%s). I'm going to try to rotate to a "
                "better connection.",
                TO_CIRCUIT(circ)->n_circ_id, circ->global_identifier,
-               channel_get_canonical_remote_descr(n_chan));
+               channel_describe_peer(n_chan));
       n_chan->is_bad_for_new_circs = 1;
     } else {
       log_info(LD_OR,
diff --git a/src/core/or/command.c b/src/core/or/command.c
index 8a1d2066cc..9226309ff7 100644
--- a/src/core/or/command.c
+++ b/src/core/or/command.c
@@ -252,7 +252,7 @@ command_process_create_cell(cell_t *cell, channel_t *chan)
     log_fn(LOG_PROTOCOL_WARN, LD_PROTOCOL,
            "Received a create cell (type %d) from %s with zero circID; "
            " ignoring.", (int)cell->command,
-           channel_get_actual_remote_descr(chan));
+           channel_describe_peer(chan));
     return;
   }
 
@@ -295,7 +295,7 @@ command_process_create_cell(cell_t *cell, channel_t *chan)
            "Received create cell (type %d) from %s, but we're connected "
            "to it as a client. "
            "Sending back a destroy.",
-           (int)cell->command, channel_get_canonical_remote_descr(chan));
+           (int)cell->command, channel_describe_peer(chan));
     channel_send_destroy(cell->circ_id, chan,
                          END_CIRC_REASON_TORPROTOCOL);
     return;
@@ -475,7 +475,7 @@ command_process_relay_cell(cell_t *cell, channel_t *chan)
     log_debug(LD_OR,
               "unknown circuit %u on connection from %s. Dropping.",
               (unsigned)cell->circ_id,
-              channel_get_canonical_remote_descr(chan));
+              channel_describe_peer(chan));
     return;
   }
 
@@ -536,7 +536,7 @@ command_process_relay_cell(cell_t *cell, channel_t *chan)
         control_event_circ_bandwidth_used_for_circ(TO_ORIGIN_CIRCUIT(circ));
       } else if (circ->n_chan) {
         log_warn(LD_OR, " upstream=%s",
-                 channel_get_actual_remote_descr(circ->n_chan));
+                 channel_describe_peer(circ->n_chan));
       }
       circuit_mark_for_close(circ, END_CIRC_REASON_TORPROTOCOL);
       return;
@@ -547,7 +547,7 @@ command_process_relay_cell(cell_t *cell, channel_t *chan)
                "Received too many RELAY_EARLY cells on circ %u from %s."
                "  Closing circuit.",
                (unsigned)cell->circ_id,
-               safe_str(channel_get_canonical_remote_descr(chan)));
+               safe_str(channel_describe_peer(chan)));
         circuit_mark_for_close(circ, END_CIRC_REASON_TORPROTOCOL);
         return;
       }
@@ -618,7 +618,7 @@ command_process_destroy_cell(cell_t *cell, channel_t *chan)
   if (!circ) {
     log_info(LD_OR,"unknown circuit %u on connection from %s. Dropping.",
              (unsigned)cell->circ_id,
-             channel_get_canonical_remote_descr(chan));
+             channel_describe_peer(chan));
     return;
   }
   log_debug(LD_OR,"Received for circID %u.",(unsigned)cell->circ_id);
diff --git a/src/core/or/connection_edge.c b/src/core/or/connection_edge.c
index 2798d1bf37..8eb9f8ba0f 100644
--- a/src/core/or/connection_edge.c
+++ b/src/core/or/connection_edge.c
@@ -3973,7 +3973,7 @@ connection_exit_begin_conn(cell_t *cell, circuit_t *circ)
          * proxies. */
         log_fn(LOG_PROTOCOL_WARN, LD_PROTOCOL,
                "Attempt by %s to open a stream %s. Closing.",
-               safe_str(channel_get_canonical_remote_descr(or_circ->p_chan)),
+               safe_str(channel_describe_peer(or_circ->p_chan)),
                client_chan ? "on first hop of circuit" :
                              "from unknown relay");
         relay_send_end_cell_from_edge(rh.stream_id, circ,
diff --git a/src/feature/relay/circuitbuild_relay.c b/src/feature/relay/circuitbuild_relay.c
index 881cbd51be..ad20e143be 100644
--- a/src/feature/relay/circuitbuild_relay.c
+++ b/src/feature/relay/circuitbuild_relay.c
@@ -501,7 +501,7 @@ circuit_extend(struct cell_t *cell, struct circuit_t *circ)
     circ->n_chan = n_chan;
     log_debug(LD_CIRC,
               "n_chan is %s.",
-              channel_get_canonical_remote_descr(n_chan));
+              channel_describe_peer(n_chan));
 
     if (circuit_deliver_create_cell(circ, &ec.create_cell, 1) < 0)
       return -1;
diff --git a/src/test/test_circuitbuild.c b/src/test/test_circuitbuild.c
index 66751bc5aa..74824a1bc1 100644
--- a/src/test/test_circuitbuild.c
+++ b/src/test/test_circuitbuild.c
@@ -1286,7 +1286,7 @@ test_circuit_extend(void *arg)
   MOCK(server_mode, mock_server_mode);
 
   /* Mock a debug function, but otherwise ignore it */
-  MOCK(channel_get_canonical_remote_descr,
+  MOCK(channel_describe_peer,
        mock_channel_get_canonical_remote_descr);
 
   setup_full_capture_of_logs(LOG_INFO);
@@ -1479,7 +1479,7 @@ test_circuit_extend(void *arg)
   UNMOCK(server_mode);
   server = 0;
 
-  UNMOCK(channel_get_canonical_remote_descr);
+  UNMOCK(channel_describe_peer);
 
   UNMOCK(extend_cell_parse);
   memset(&mock_extend_cell_parse_cell_out, 0,



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