Prevent meshlink_join() when the joining node is already part of a mesh.

[meshlink] / test / invite-join.c

diff --git a/test/invite-join.c b/test/invite-join.c
index 41b62bd4d92cb475ddabc47c2fdb34cfdff53794..52a922a89a9509695639dd88e90623255e039884 100644 (file)
--- a/test/invite-join.c
+++ b/test/invite-join.c
@@ -2,32 +2,77 @@
 #include <unistd.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/time.h>
 
 #include "meshlink.h"
 
 volatile bool baz_reachable = false;
 
+void log_cb(meshlink_handle_t *mesh, meshlink_log_level_t level, const char *text) {
+       static struct timeval tv0;
+       struct timeval tv;
+
+       if(tv0.tv_sec == 0) {
+               gettimeofday(&tv0, NULL);
+       }
+
+       gettimeofday(&tv, NULL);
+       fprintf(stderr, "%u.%.03u ", (unsigned int)(tv.tv_sec - tv0.tv_sec), (unsigned int)tv.tv_usec / 1000);
+
+       if(mesh) {
+               fprintf(stderr, "(%s) ", mesh->name);
+       }
+
+       fprintf(stderr, "[%d] %s\n", level, text);
+}
+
 void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
-       if(!strcmp(node->name, "baz"))
+       (void)mesh;
+
+       if(!strcmp(node->name, "baz")) {
                baz_reachable = reachable;
+       }
 }
 
-int main(int argc, char *argv[]) {
-       // Open two new meshlink instance.
+int main() {
+       meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb);
+
+       // Open thee new meshlink instance.
 
        meshlink_handle_t *mesh1 = meshlink_open("invite_join_conf.1", "foo", "invite-join", DEV_CLASS_BACKBONE);
+
        if(!mesh1) {
                fprintf(stderr, "Could not initialize configuration for foo\n");
                return 1;
        }
 
+       meshlink_set_log_cb(mesh1, MESHLINK_DEBUG, log_cb);
+
        meshlink_handle_t *mesh2 = meshlink_open("invite_join_conf.2", "bar", "invite-join", DEV_CLASS_BACKBONE);
+
        if(!mesh2) {
                fprintf(stderr, "Could not initialize configuration for bar\n");
                return 1;
        }
 
-       // Start the first instance and have it generate an invitation.
+       meshlink_set_log_cb(mesh2, MESHLINK_DEBUG, log_cb);
+
+       meshlink_handle_t *mesh3 = meshlink_open("invite_join_conf.3", "quux", "invite-join", DEV_CLASS_BACKBONE);
+
+       if(!mesh3) {
+               fprintf(stderr, "Could not initialize configuration for quux\n");
+               return 1;
+       }
+
+       meshlink_set_log_cb(mesh3, MESHLINK_DEBUG, log_cb);
+
+       // Disable local discovery.
+
+       meshlink_enable_discovery(mesh1, false);
+       meshlink_enable_discovery(mesh2, false);
+       meshlink_enable_discovery(mesh3, false);
+
+       // Start the first instance and have it generate invitations.
 
        meshlink_set_node_status_cb(mesh1, status_cb);
 
@@ -37,21 +82,30 @@ int main(int argc, char *argv[]) {
        }
 
        meshlink_add_address(mesh1, "localhost");
-       char *url = meshlink_invite(mesh1, "baz");
-       if(!url) {
+       char *baz_url = meshlink_invite(mesh1, NULL, "baz");
+
+       if(!baz_url) {
                fprintf(stderr, "Foo could not generate an invitation for baz\n");
                return 1;
        }
 
+       char *quux_url = meshlink_invite(mesh1, NULL, "quux");
+
+       if(!quux_url) {
+               fprintf(stderr, "Foo could not generate an invitation for quux\n");
+               return 1;
+       }
+
+       fprintf(stderr, "Invitation URL for baz:  %s\n", baz_url);
+       fprintf(stderr, "Invitation URL for quux: %s\n", quux_url);
+
        // Have the second instance join the first.
 
-       if(!meshlink_join(mesh2, url)) {
+       if(!meshlink_join(mesh2, baz_url)) {
                fprintf(stderr, "Baz could not join foo's mesh\n");
                return 1;
        }
 
-       free(url);
-
        if(!meshlink_start(mesh2)) {
                fprintf(stderr, "Baz could not start\n");
                return 1;
@@ -61,8 +115,10 @@ int main(int argc, char *argv[]) {
 
        for(int i = 0; i < 60; i++) {
                sleep(1);
-               if(baz_reachable)
+
+               if(baz_reachable) {
                        break;
+               }
        }
 
        if(!baz_reachable) {
@@ -71,6 +127,7 @@ int main(int argc, char *argv[]) {
        }
 
        int pmtu = meshlink_get_pmtu(mesh1, meshlink_get_node(mesh1, "baz"));
+
        for(int i = 0; i < 10 && !pmtu; i++) {
                sleep(1);
                pmtu = meshlink_get_pmtu(mesh1, meshlink_get_node(mesh1, "baz"));
@@ -81,10 +138,54 @@ int main(int argc, char *argv[]) {
                return 1;
        }
 
-       // Clean up.
+       // Check that an invitation cannot be used twice
+
+       if(meshlink_join(mesh3, baz_url)) {
+               fprintf(stderr, "Quux could join foo's mesh using an already used invitation\n");
+               return 1;
+       }
+
+       free(baz_url);
+
+       // Check that nodes cannot join with expired invitations
+
+       meshlink_set_invitation_timeout(mesh1, 0);
+
+       if(meshlink_join(mesh3, quux_url)) {
+               fprintf(stderr, "Quux could join foo's mesh using an outdated invitation\n");
+               return 1;
+       }
+
+       free(quux_url);
+
+       // Check that existing nodes cannot join another mesh
+
+       char *corge_url = meshlink_invite(mesh3, NULL, "corge");
+
+       if(!corge_url) {
+               fprintf(stderr, "Quux could not generate an invitation for corge\n");
+               return 1;
+       }
+
+       fprintf(stderr, "Invitation URL for corge: %s\n", corge_url);
+
+       if(!meshlink_start(mesh3)) {
+               fprintf(stderr, "Quux could not start\n");
+               return 1;
+       }
 
        meshlink_stop(mesh2);
-       meshlink_stop(mesh1);
+
+       if(meshlink_join(mesh2, corge_url)) {
+               fprintf(stderr, "Bar could join twice\n");
+               return 1;
+       }
+
+       free(corge_url);
+
+       // Clean up.
+
+       meshlink_close(mesh3);
        meshlink_close(mesh2);
        meshlink_close(mesh1);