Add option to dump only a list of reachable nodes.

diff --git a/bash_completion.d/tinc b/bash_completion.d/tinc
index f486f87..dd41874 100644 (file)
--- a/bash_completion.d/tinc
+++ b/bash_completion.d/tinc
@@ -60,8 +60,8 @@ _tinc() {
                get|set|add|del)
                COMPREPLY=( $(compgen -W "${confvars}" -- ${cur}) )
                ;;
-               dump)
-               COMPREPLY=( $(compgen -W "nodes edges subnets connections graph" -- ${cur}) )
+               dump|reachable)
+               COMPREPLY=( $(compgen -W "reachable nodes edges subnets connections graph" -- ${cur}) )
                return 0
                ;;
        esac

diff --git a/doc/tinc.texi b/doc/tinc.texi
index c0115f4..d4c527f 100644 (file)
--- a/doc/tinc.texi
+++ b/doc/tinc.texi
@@ -2232,8 +2232,9 @@ Generate public/private keypair of @var{bits} length. If @var{bits} is not speci
 but will default to the configuration directory (you can use the -c or -n
 option).
 
-@item dump nodes
+@item dump [reachable] nodes
 Dump a list of all known nodes in the VPN.
+If the reachable keyword is used, only lists reachable nodes.
 
 @item dump edges
 Dump a list of all known connections in the VPN.

diff --git a/doc/tincctl.8.in b/doc/tincctl.8.in
index 821803a..8fdd272 100644 (file)
--- a/doc/tincctl.8.in
+++ b/doc/tincctl.8.in
@@ -114,8 +114,9 @@ If
 is omitted, the default length will be 2048 bits.
 When saving keys to existing files, tinc will not delete the old keys;
 you have to remove them manually.
-.It dump nodes
+.It dump [reachable] nodes
 Dump a list of all known nodes in the VPN.
+If the keyword reachable is used, only lists reachable nodes.
 .It dump edges
 Dump a list of all known connections in the VPN.
 .It dump subnets

diff --git a/src/tincctl.c b/src/tincctl.c
index 130ddde..dd0bbcc 100644 (file)
--- a/src/tincctl.c
+++ b/src/tincctl.c
@@ -135,7 +135,7 @@ static void usage(bool status) {
                                "  generate-rsa-keys [bits]   Generate a new RSA public/private keypair.\n"
                                "  generate-ecdsa-keys        Generate a new ECDSA public/private keypair.\n"
                                "  dump                       Dump a list of one of the following things:\n"
-                               "    nodes                    - all known nodes in the VPN\n"
+                               "    [reachable] nodes        - all known nodes in the VPN\n"
                                "    edges                    - all known connections in the VPN\n"
                                "    subnets                  - all known subnets in the VPN\n"
                                "    connections              - all meta connections with ourself\n"
@@ -912,6 +912,19 @@ static int cmd_reload(int argc, char *argv[]) {
 }
 
 static int cmd_dump(int argc, char *argv[]) {
+       bool only_reachable = false;
+
+       if(argc > 2 && !strcasecmp(argv[1], "reachable")) {
+               if(strcasecmp(argv[2], "nodes")) {
+                       fprintf(stderr, "`reachable' only supported for nodes.\n");
+                       usage(true);
+                       return 1;
+               }
+               only_reachable = true;
+               argv++;
+               argc--;
+       }
+
        if(argc != 2) {
                fprintf(stderr, "Invalid number of arguments.\n");
                usage(true);
@@ -986,8 +999,10 @@ static int cmd_dump(int argc, char *argv[]) {
                                        fprintf(stderr, "Unable to parse node dump from tincd: %s\n", line);
                                        return 1;
                                }
+
+                               memcpy(&status, &status_int, sizeof status);
+
                                if(do_graph) {
-                                       memcpy(&status, &status_int, sizeof status);
                                        const char *color = "black";
                                        if(!strcmp(host, "MYSELF"))
                                                color = "green";
@@ -1001,6 +1016,8 @@ static int cmd_dump(int argc, char *argv[]) {
                                                color = "green";
                                        printf(" %s [label = \"%s\", color = \"%s\"%s];\n", node, node, color, strcmp(host, "MYSELF") ? "" : ", style = \"filled\"");
                                } else {
+                                       if(only_reachable && !status.reachable)
+                                               continue;
                                        printf("%s at %s port %s cipher %d digest %d maclength %d compression %d options %x status %04x nexthop %s via %s distance %d pmtu %hd (min %hd max %hd)\n",
                                                        node, host, port, cipher, digest, maclength, compression, options, status_int, nexthop, via, distance, pmtu, minmtu, maxmtu);
                                }
@@ -1947,7 +1964,7 @@ static char *complete_command(const char *text, int state) {
 }
 
 static char *complete_dump(const char *text, int state) {
-       const char *matches[] = {"nodes", "edges", "subnets", "connections", "graph", NULL};
+       const char *matches[] = {"reachable", "nodes", "edges", "subnets", "connections", "graph", NULL};
        static int i;
 
        if(!state)