Remove redundant connection_t::status.active field.

The only places where connection_t::status.active is modified is in
ack_h() and terminate_connection(). In both cases, connection_t::edge
is added and removed at the same time, and that's the only places
connection_t::edge is set. Therefore, the following is true at all
times:

    !c->status.active == !c->edge

This commit removes the redundant state information by getting rid of
connection_t::status.active, and using connection_t::edge instead.

diff --git a/src/connection.h b/src/connection.h
index b5d3d18..b62d41b 100644 (file)
--- a/src/connection.h
+++ b/src/connection.h
@@ -36,7 +36,6 @@
 
 typedef struct connection_status_t {
                unsigned int pinged:1;                  /* sent ping */
-               unsigned int active:1;                  /* 1 if active.. */
                unsigned int connecting:1;              /* 1 if we are waiting for a non-blocking connect() to finish */
                unsigned int unused_termreq:1;          /* the termination of this connection was requested */
                unsigned int remove_unused:1;           /* Set to 1 if you want this connection removed */

diff --git a/src/control.c b/src/control.c
index dc8890a..98eae80 100644 (file)
--- a/src/control.c
+++ b/src/control.c
@@ -106,7 +106,7 @@ bool control_h(connection_t *c, const char *request) {
                        for list_each(connection_t, other, connection_list) {
                                if(strcmp(other->name, name))
                                        continue;
-                               terminate_connection(other, other->status.active);
+                               terminate_connection(other, other->edge);
                                found = true;
                        }
 

diff --git a/src/meta.c b/src/meta.c
index 25cca5f..fbd3e26 100644 (file)
--- a/src/meta.c
+++ b/src/meta.c
@@ -76,7 +76,7 @@ bool send_meta(connection_t *c, const char *buffer, int length) {
 
 void broadcast_meta(connection_t *from, const char *buffer, int length) {
        for list_each(connection_t, c, connection_list)
-               if(c != from && c->status.active)
+               if(c != from && c->edge)
                        send_meta(c, buffer, length);
 }
 

diff --git a/src/net.c b/src/net.c
index 8fe3c51..91b9305 100644 (file)
--- a/src/net.c
+++ b/src/net.c
@@ -97,8 +97,6 @@ void purge(void) {
 void terminate_connection(connection_t *c, bool report) {
        logger(DEBUG_CONNECTIONS, LOG_NOTICE, "Closing connection with %s (%s)", c->name, c->hostname);
 
-       c->status.active = false;
-
        if(c->node && c->node->connection == c)
                c->node->connection = NULL;
 
@@ -155,7 +153,7 @@ static void timeout_handler(void *data) {
                        continue;
 
                if(c->last_ping_time + pingtimeout <= now.tv_sec) {
-                       if(c->status.active) {
+                       if(c->edge) {
                                if(c->status.pinged) {
                                        logger(DEBUG_CONNECTIONS, LOG_INFO, "%s (%s) didn't respond to PING in %ld seconds", c->name, c->hostname, (long)now.tv_sec - c->last_ping_time);
                                } else if(c->last_ping_time + pinginterval <= now.tv_sec) {
@@ -170,7 +168,7 @@ static void timeout_handler(void *data) {
                                else
                                        logger(DEBUG_CONNECTIONS, LOG_WARNING, "Timeout from %s (%s) during authentication", c->name, c->hostname);
                        }
-                       terminate_connection(c, c->status.active);
+                       terminate_connection(c, c->edge);
                }
        }
 
@@ -204,7 +202,7 @@ static void periodic_handler(void *data) {
                /* Count number of active connections */
                int nc = 0;
                for list_each(connection_t, c, connection_list) {
-                       if(c->status.active && !c->status.control)
+                       if(c->edge)
                                nc++;
                }
 
@@ -251,7 +249,7 @@ static void periodic_handler(void *data) {
                        int i = 0;
 
                        for list_each(connection_t, c, connection_list) {
-                               if(!c->status.active || c->status.control)
+                               if(!c->edge)
                                        continue;
 
                                if(i++ != r)
@@ -263,7 +261,7 @@ static void periodic_handler(void *data) {
                                logger(DEBUG_CONNECTIONS, LOG_INFO, "Autodisconnecting from %s", c->name);
                                list_delete(outgoing_list, c->outgoing);
                                c->outgoing = NULL;
-                               terminate_connection(c, c->status.active);
+                               terminate_connection(c, c->edge);
                                break;
                        }
                }
@@ -293,7 +291,7 @@ static void periodic_handler(void *data) {
 
 void handle_meta_connection_data(connection_t *c) {
        if (!receive_meta(c)) {
-               terminate_connection(c, c->status.active);
+               terminate_connection(c, c->edge);
                return;
        }
 }
@@ -418,7 +416,7 @@ int reload_configuration(void) {
                struct stat s;
                if(stat(fname, &s) || s.st_mtime > last_config_check) {
                        logger(DEBUG_CONNECTIONS, LOG_INFO, "Host config file of %s has been changed", c->name);
-                       terminate_connection(c, c->status.active);
+                       terminate_connection(c, c->edge);
                }
                free(fname);
        }

diff --git a/src/net_packet.c b/src/net_packet.c
index c8cd0ca..31c19b7 100644 (file)
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -936,7 +936,7 @@ void broadcast_packet(const node_t *from, vpn_packet_t *packet) {
                // usually distributes the sending of broadcast packets over all nodes.
                case BMODE_MST:
                        for list_each(connection_t, c, connection_list)
-                               if(c->status.active && c->status.mst && c != from->nexthop->connection)
+                               if(c->edge && c->status.mst && c != from->nexthop->connection)
                                        send_packet(c->node, packet);
                        break;
 

diff --git a/src/net_socket.c b/src/net_socket.c
index b2297af..1bf9d16 100644 (file)
--- a/src/net_socket.c
+++ b/src/net_socket.c
@@ -388,7 +388,7 @@ static void handle_meta_write(connection_t *c) {
                        logger(DEBUG_CONNECTIONS, LOG_ERR, "Could not send %d bytes of data to %s (%s): %s", c->outbuf.len - c->outbuf.offset, c->name, c->hostname, sockstrerror(sockerrno));
                }
 
-               terminate_connection(c, c->status.active);
+               terminate_connection(c, c->edge);
                return;
        }
 
@@ -820,7 +820,7 @@ void try_outgoing_connections(void) {
                if(c->outgoing && c->outgoing->timeout == -1) {
                        c->outgoing = NULL;
                        logger(DEBUG_CONNECTIONS, LOG_INFO, "No more outgoing connection to %s", c->name);
-                       terminate_connection(c, c->status.active);
+                       terminate_connection(c, c->edge);
                }
        }
 

diff --git a/src/protocol_auth.c b/src/protocol_auth.c
index 778c607..ac486ea 100644 (file)
--- a/src/protocol_auth.c
+++ b/src/protocol_auth.c
@@ -805,7 +805,6 @@ bool ack_h(connection_t *c, const char *request) {
        /* Activate this connection */
 
        c->allow_request = ALL;
-       c->status.active = true;
 
        logger(DEBUG_CONNECTIONS, LOG_NOTICE, "Connection with %s (%s) activated", c->name,
                           c->hostname);

diff --git a/src/protocol_key.c b/src/protocol_key.c
index e838f61..fcb748f 100644 (file)
--- a/src/protocol_key.c
+++ b/src/protocol_key.c
@@ -41,7 +41,7 @@ void send_key_changed(void) {
        /* Immediately send new keys to directly connected nodes to keep UDP mappings alive */
 
        for list_each(connection_t, c, connection_list)
-               if(c->status.active && c->node && c->node->status.reachable && !c->node->status.sptps)
+               if(c->edge && c->node && c->node->status.reachable && !c->node->status.sptps)
                        send_ans_key(c->node);
 
        /* Force key exchange for connections using SPTPS */

diff --git a/src/route.c b/src/route.c
index 8c65c4c..17f1c71 100644 (file)
--- a/src/route.c
+++ b/src/route.c
@@ -203,7 +203,7 @@ static void age_subnets(void *data) {
                        }
 
                        for list_each(connection_t, c, connection_list)
-                               if(c->status.active)
+                               if(c->edge)
                                        send_del_subnet(c, s);
 
                        subnet_del(myself, s);
@@ -238,7 +238,7 @@ static void learn_mac(mac_t *address) {
                /* And tell all other tinc daemons it's our MAC */
 
                for list_each(connection_t, c, connection_list)
-                       if(c->status.active)
+                       if(c->edge)
                                send_add_subnet(c, subnet);
 
                timeout_add(&age_subnets_timeout, age_subnets, NULL, &(struct timeval){10, rand() % 100000});