r17322@aud-055: nickm | 2008-07-23 16:50:50 +0200

 Make circid_t and streamid_t get used instead of uint16_t; it is possible we will soon want to make circid_t change to uint32_t.


svn:r16155

6 files changed, 43 insertions, 40 deletions

diff --git a/src/or/circuitbuild.c b/src/or/circuitbuild.c
index 1b08637e60..89a03b855e 100644
--- a/src/or/circuitbuild.c
+++ b/src/or/circuitbuild.c
@@ -69,12 +69,12 @@ static time_t start_of_month(time_t when);
  *
  * Return it, or 0 if can't get a unique circ_id.
  */
-static uint16_t
+static circid_t
 get_unique_circ_id_by_conn(or_connection_t *conn)
 {
-  uint16_t test_circ_id;
-  uint16_t attempts=0;
-  uint16_t high_bit;
+  circid_t test_circ_id;
+  circid_t attempts=0;
+  circid_t high_bit;
 
   tor_assert(conn);
   if (conn->circ_id_type == CIRC_ID_TYPE_NEITHER) {
@@ -488,7 +488,7 @@ circuit_deliver_create_cell(circuit_t *circ, uint8_t cell_type,
                             const char *payload)
 {
   cell_t cell;
-  uint16_t id;
+  circid_t id;
 
   tor_assert(circ);
   tor_assert(circ->n_conn);
diff --git a/src/or/circuitlist.c b/src/or/circuitlist.c
index e592485fcf..25cafb9e69 100644
--- a/src/or/circuitlist.c
+++ b/src/or/circuitlist.c
@@ -34,7 +34,7 @@ static void circuit_free_cpath_node(crypt_path_t *victim);
 typedef struct orconn_circid_circuit_map_t {
   HT_ENTRY(orconn_circid_circuit_map_t) node;
   or_connection_t *or_conn;
-  uint16_t circ_id;
+  circid_t circ_id;
   circuit_t *circuit;
 } orconn_circid_circuit_map_t;
 
@@ -53,7 +53,7 @@ _orconn_circid_entries_eq(orconn_circid_circuit_map_t *a,
 static INLINE unsigned int
 _orconn_circid_entry_hash(orconn_circid_circuit_map_t *a)
 {
-  return (((unsigned)a->circ_id)<<16) ^ (unsigned)(uintptr_t)(a->or_conn);
+  return (((unsigned)a->circ_id)<<8) ^ (unsigned)(uintptr_t)(a->or_conn);
 }
 
 /** Map from [orconn,circid] to circuit. */
@@ -80,13 +80,13 @@ orconn_circid_circuit_map_t *_last_circid_orconn_ent = NULL;
  * XXX "active" isn't an arg anymore */
 static void
 circuit_set_circid_orconn_helper(circuit_t *circ, int direction,
-                                 uint16_t id,
+                                 circid_t id,
                                  or_connection_t *conn)
 {
   orconn_circid_circuit_map_t search;
   orconn_circid_circuit_map_t *found;
   or_connection_t *old_conn, **conn_ptr;
-  uint16_t old_id, *circid_ptr;
+  circid_t old_id, *circid_ptr;
   int was_active, make_active;
 
   if (direction == CELL_DIRECTION_OUT) {
@@ -159,7 +159,7 @@ circuit_set_circid_orconn_helper(circuit_t *circ, int direction,
  * with the corresponding circuit ID, and add the circuit as appropriate
  * to the (orconn,id)-\>circuit map. */
 void
-circuit_set_p_circid_orconn(or_circuit_t *circ, uint16_t id,
+circuit_set_p_circid_orconn(or_circuit_t *circ, circid_t id,
                             or_connection_t *conn)
 {
   circuit_set_circid_orconn_helper(TO_CIRCUIT(circ), CELL_DIRECTION_IN,
@@ -173,7 +173,7 @@ circuit_set_p_circid_orconn(or_circuit_t *circ, uint16_t id,
  * with the corresponding circuit ID, and add the circuit as appropriate
  * to the (orconn,id)-\>circuit map. */
 void
-circuit_set_n_circid_orconn(circuit_t *circ, uint16_t id,
+circuit_set_n_circid_orconn(circuit_t *circ, circid_t id,
                             or_connection_t *conn)
 {
   circuit_set_circid_orconn_helper(circ, CELL_DIRECTION_OUT, id, conn);
@@ -356,7 +356,7 @@ origin_circuit_new(void)
 /** Allocate a new or_circuit_t, connected to <b>p_conn</b> as
  * <b>p_circ_id</b>.  If <b>p_conn</b> is NULL, the circuit is unattached. */
 or_circuit_t *
-or_circuit_new(uint16_t p_circ_id, or_connection_t *p_conn)
+or_circuit_new(circid_t p_circ_id, or_connection_t *p_conn)
 {
   /* CircIDs */
   or_circuit_t *circ;
@@ -603,7 +603,7 @@ circuit_get_by_global_id(uint32_t id)
  * Return NULL if no such circuit exists.
  */
 static INLINE circuit_t *
-circuit_get_by_circid_orconn_impl(uint16_t circ_id, or_connection_t *conn)
+circuit_get_by_circid_orconn_impl(circid_t circ_id, or_connection_t *conn)
 {
   orconn_circid_circuit_map_t search;
   orconn_circid_circuit_map_t *found;
@@ -652,7 +652,7 @@ circuit_get_by_circid_orconn_impl(uint16_t circ_id, or_connection_t *conn)
  * Return NULL if no such circuit exists.
  */
 circuit_t *
-circuit_get_by_circid_orconn(uint16_t circ_id, or_connection_t *conn)
+circuit_get_by_circid_orconn(circid_t circ_id, or_connection_t *conn)
 {
   circuit_t *circ = circuit_get_by_circid_orconn_impl(circ_id, conn);
   if (!circ || circ->marked_for_close)
@@ -664,7 +664,7 @@ circuit_get_by_circid_orconn(uint16_t circ_id, or_connection_t *conn)
 /** Return true iff the circuit ID <b>circ_id</b> is currently used by a
  * circuit, marked or not, on <b>conn</b>. */
 int
-circuit_id_in_use_on_orconn(uint16_t circ_id, or_connection_t *conn)
+circuit_id_in_use_on_orconn(circid_t circ_id, or_connection_t *conn)
 {
   return circuit_get_by_circid_orconn_impl(circ_id, conn) != NULL;
 }
diff --git a/src/or/connection_edge.c b/src/or/connection_edge.c
index aee22eb0cb..5b1b5b8245 100644
--- a/src/or/connection_edge.c
+++ b/src/or/connection_edge.c
@@ -153,7 +153,7 @@ connection_edge_process_inbuf(edge_connection_t *conn, int package_partial)
  * Mark it for close and return 0.
  */
 int
-connection_edge_destroy(uint16_t circ_id, edge_connection_t *conn)
+connection_edge_destroy(circid_t circ_id, edge_connection_t *conn)
 {
   if (!conn->_base.marked_for_close) {
     log_info(LD_EDGE,
@@ -1944,11 +1944,11 @@ connection_ap_process_natd(edge_connection_t *conn)
 /** Iterate over the two bytes of stream_id until we get one that is not
  * already in use; return it. Return 0 if can't get a unique stream_id.
  */
-static uint16_t
+static streamid_t
 get_unique_stream_id_by_circ(origin_circuit_t *circ)
 {
   edge_connection_t *tmpconn;
-  uint16_t test_stream_id;
+  streamid_t test_stream_id;
   uint32_t attempts=0;
 
 again:
diff --git a/src/or/connection_or.c b/src/or/connection_or.c
index b9bc5f40a5..0ed957eb66 100644
--- a/src/or/connection_or.c
+++ b/src/or/connection_or.c
@@ -1016,7 +1016,7 @@ connection_or_process_cells_from_inbuf(or_connection_t *conn)
  * Return 0.
  */
 int
-connection_or_send_destroy(uint16_t circ_id, or_connection_t *conn, int reason)
+connection_or_send_destroy(circid_t circ_id, or_connection_t *conn, int reason)
 {
   cell_t cell;
 
diff --git a/src/or/cpuworker.c b/src/or/cpuworker.c
index 50446f190f..e56d2787f3 100644
--- a/src/or/cpuworker.c
+++ b/src/or/cpuworker.c
@@ -63,7 +63,7 @@ connection_cpu_finished_flushing(connection_t *conn)
 /** Pack addr,port,and circ_id; set *tag to the result. (See note on
  * cpuworker_main for wire format.) */
 static void
-tag_pack(char *tag, uint32_t addr, uint16_t port, uint16_t circ_id)
+tag_pack(char *tag, uint32_t addr, uint16_t port, circid_t circ_id)
 {
   *(uint32_t *)tag     = addr;
   *(uint16_t *)(tag+4) = port;
@@ -73,7 +73,7 @@ tag_pack(char *tag, uint32_t addr, uint16_t port, uint16_t circ_id)
 /** Unpack <b>tag</b> into addr, port, and circ_id.
  */
 static void
-tag_unpack(const char *tag, uint32_t *addr, uint16_t *port, uint16_t *circ_id)
+tag_unpack(const char *tag, uint32_t *addr, uint16_t *port, circid_t *circ_id)
 {
   struct in_addr in;
   char addrbuf[INET_NTOA_BUF_LEN];
@@ -137,7 +137,7 @@ connection_cpu_process_inbuf(connection_t *conn)
   char buf[LEN_ONION_RESPONSE];
   uint32_t addr;
   uint16_t port;
-  uint16_t circ_id;
+  circid_t circ_id;
   or_connection_t *p_conn;
   circuit_t *circ;
 
diff --git a/src/or/or.h b/src/or/or.h
index 6274dd0911..f8ee695fab 100644
--- a/src/or/or.h
+++ b/src/or/or.h
@@ -717,10 +717,15 @@ typedef enum {
 /** Largest number of bytes that can fit in a relay cell payload. */
 #define RELAY_PAYLOAD_SIZE (CELL_PAYLOAD_SIZE-RELAY_HEADER_SIZE)
 
+/** Identifies a circuit on an or_connection */
+typedef uint16_t circid_t;
+/** Identifies a stream on a circuit */
+typedef uint16_t streamid_t;
+
 /** Parsed onion routing cell.  All communication between nodes
  * is via cells. */
 typedef struct cell_t {
-  uint16_t circ_id; /**< Circuit which received the cell. */
+  circid_t circ_id; /**< Circuit which received the cell. */
   uint8_t command; /**< Type of the cell: one of CELL_PADDING, CELL_CREATE,
                     * CELL_DESTROY, etc */
   char payload[CELL_PAYLOAD_SIZE]; /**< Cell body. */
@@ -729,7 +734,7 @@ typedef struct cell_t {
 /** Parsed variable-length onion routing cell. */
 typedef struct var_cell_t {
   uint8_t command;
-  uint16_t circ_id;
+  circid_t circ_id;
   uint16_t payload_len;
   char payload[1];
 } var_cell_t;
@@ -752,7 +757,7 @@ typedef struct cell_queue_t {
 typedef struct {
   uint8_t command; /**< The end-to-end relay command. */
   uint16_t recognized; /**< Used to tell whether cell is for us. */
-  uint16_t stream_id; /**< Which stream is this cell associated with? */
+  streamid_t stream_id; /**< Which stream is this cell associated with? */
   char integrity[4]; /**< Used to tell whether cell is corrupted. */
   uint16_t length; /**< How long is the payload body? */
 } relay_header_t;
@@ -932,7 +937,7 @@ typedef struct or_connection_t {
   unsigned int is_canonical:1;
   uint8_t link_proto; /**< What protocol version are we using? 0 for
                        * "none negotiated yet." */
-  uint16_t next_circ_id; /**< Which circ_id do we try to use next on
+  circid_t next_circ_id; /**< Which circ_id do we try to use next on
                           * this connection?  This is always in the
                           * range 0..1<<15-1. */
 
@@ -983,8 +988,8 @@ typedef struct edge_connection_t {
   uint32_t address_ttl; /**< TTL for address-to-addr mapping on exit
                          * connection.  Exit connections only. */
 
-  uint16_t stream_id; /**< The stream ID used for this edge connection on its
-                       * circuit */
+  streamid_t stream_id; /**< The stream ID used for this edge connection on its
+                         * circuit */
 
   /** The reason why this connection is closing; passed to the controller. */
   uint16_t end_reason;
@@ -1737,8 +1742,6 @@ typedef struct {
 #define ORIGIN_CIRCUIT_MAGIC 0x35315243u
 #define OR_CIRCUIT_MAGIC 0x98ABC04Fu
 
-typedef uint16_t circid_t;
-
 /**
  * A circuit is a path over the onion routing
  * network. Applications can connect to one end of the circuit, and can
@@ -1773,7 +1776,7 @@ typedef struct circuit_t {
   /** The identity hash of n_conn. */
   char n_conn_id_digest[DIGEST_LEN];
   /** The circuit_id used in the next (forward) hop of this circuit. */
-  uint16_t n_circ_id;
+  circid_t n_circ_id;
   /** The port for the OR that is next in this circuit. */
   uint16_t n_port;
   /** The IPv4 address of the OR that is next in this circuit. */
@@ -1874,7 +1877,7 @@ typedef struct origin_circuit_t {
 
   /** The next stream_id that will be tried when we're attempting to
    * construct a new AP stream originating at this circuit. */
-  uint16_t next_stream_id;
+  streamid_t next_stream_id;
 
   /** Quasi-global identifier for this circuit; used for control.c */
   /* XXXX NM This can get re-used after 2**32 circuits. */
@@ -2608,17 +2611,17 @@ void entry_guards_free_all(void);
 circuit_t * _circuit_get_global_list(void);
 const char *circuit_state_to_string(int state);
 void circuit_dump_by_conn(connection_t *conn, int severity);
-void circuit_set_p_circid_orconn(or_circuit_t *circ, uint16_t id,
+void circuit_set_p_circid_orconn(or_circuit_t *circ, circid_t id,
                                  or_connection_t *conn);
-void circuit_set_n_circid_orconn(circuit_t *circ, uint16_t id,
+void circuit_set_n_circid_orconn(circuit_t *circ, circid_t id,
                                  or_connection_t *conn);
 void circuit_set_state(circuit_t *circ, uint8_t state);
 void circuit_close_all_marked(void);
 origin_circuit_t *origin_circuit_new(void);
-or_circuit_t *or_circuit_new(uint16_t p_circ_id, or_connection_t *p_conn);
-circuit_t *circuit_get_by_circid_orconn(uint16_t circ_id,
+or_circuit_t *or_circuit_new(circid_t p_circ_id, or_connection_t *p_conn);
+circuit_t *circuit_get_by_circid_orconn(circid_t circ_id,
                                         or_connection_t *conn);
-int circuit_id_in_use_on_orconn(uint16_t circ_id, or_connection_t *conn);
+int circuit_id_in_use_on_orconn(circid_t circ_id, or_connection_t *conn);
 circuit_t *circuit_get_by_edge_conn(edge_connection_t *conn);
 void circuit_unlink_all_from_or_conn(or_connection_t *conn, int reason);
 origin_circuit_t *circuit_get_by_global_id(uint32_t id);
@@ -2845,7 +2848,7 @@ void _connection_mark_unattached_ap(edge_connection_t *conn, int endreason,
 int connection_edge_reached_eof(edge_connection_t *conn);
 int connection_edge_process_inbuf(edge_connection_t *conn,
                                   int package_partial);
-int connection_edge_destroy(uint16_t circ_id, edge_connection_t *conn);
+int connection_edge_destroy(circid_t circ_id, edge_connection_t *conn);
 int connection_edge_end(edge_connection_t *conn, char reason);
 int connection_edge_end_errno(edge_connection_t *conn);
 int connection_edge_finished_flushing(edge_connection_t *conn);
@@ -2941,7 +2944,7 @@ void connection_or_write_cell_to_buf(const cell_t *cell,
                                      or_connection_t *conn);
 void connection_or_write_var_cell_to_buf(const var_cell_t *cell,
                                          or_connection_t *conn);
-int connection_or_send_destroy(uint16_t circ_id, or_connection_t *conn,
+int connection_or_send_destroy(circid_t circ_id, or_connection_t *conn,
                                int reason);
 int connection_or_send_netinfo(or_connection_t *conn);
 int connection_or_send_cert(or_connection_t *conn);
@@ -3640,7 +3643,7 @@ int circuit_receive_relay_cell(cell_t *cell, circuit_t *circ,
 
 void relay_header_pack(char *dest, const relay_header_t *src);
 void relay_header_unpack(relay_header_t *dest, const char *src);
-int relay_send_command_from_edge(uint16_t stream_id, circuit_t *circ,
+int relay_send_command_from_edge(streamid_t stream_id, circuit_t *circ,
                                uint8_t relay_command, const char *payload,
                                size_t payload_len, crypt_path_t *cpath_layer);
 int connection_edge_send_command(edge_connection_t *fromconn,