]> git.meshlink.io Git - meshlink/commitdiff
Ensure all addresses in the invitation URL are also in the invitation file.
authorGuus Sliepen <guus@meshlink.io>
Fri, 6 Dec 2019 21:42:59 +0000 (22:42 +0100)
committerGuus Sliepen <guus@meshlink.io>
Fri, 6 Dec 2019 21:42:59 +0000 (22:42 +0100)
src/meshlink.c
src/net_setup.c

index 91be6412f7eb9ad5e5a11c9bc1ba8fd3fd478fa8..fdc6fed874460271a5fe810722871238a8352cc3 100644 (file)
@@ -393,58 +393,66 @@ static char *get_my_hostname(meshlink_handle_t *mesh, uint32_t flags) {
 
        remove_duplicate_hostnames(hostname, port, 4);
 
-       if(!(flags & MESHLINK_INVITE_NUMERIC)) {
-               for(int i = 0; i < 4; i++) {
-                       if(!hostname[i]) {
-                               continue;
-                       }
+       // Resolve the hostnames
+       for(int i = 0; i < 4; i++) {
+               if(!hostname[i]) {
+                       continue;
+               }
 
-                       // Convert what we have to a sockaddr
-                       struct addrinfo *ai_in, *ai_out;
-                       struct addrinfo hint = {
-                               .ai_family = AF_UNSPEC,
-                               .ai_flags = AI_NUMERICSERV,
-                               .ai_socktype = SOCK_STREAM,
-                       };
-                       int err = getaddrinfo(hostname[i], port[i], &hint, &ai_in);
+               // Convert what we have to a sockaddr
+               struct addrinfo *ai_in, *ai_out;
+               struct addrinfo hint = {
+                       .ai_family = AF_UNSPEC,
+                       .ai_flags = AI_NUMERICSERV,
+                       .ai_socktype = SOCK_STREAM,
+               };
+               int err = getaddrinfo(hostname[i], port[i], &hint, &ai_in);
 
-                       if(err || !ai_in) {
-                               continue;
-                       }
+               if(err || !ai_in) {
+                       continue;
+               }
 
-                       // Convert it to a hostname
-                       char resolved_host[NI_MAXHOST];
-                       char resolved_port[NI_MAXSERV];
-                       err = getnameinfo(ai_in->ai_addr, ai_in->ai_addrlen, resolved_host, sizeof resolved_host, resolved_port, sizeof resolved_port, NI_NUMERICSERV);
+               // Remember the address
+               node_add_recent_address(mesh, mesh->self, (sockaddr_t *)ai_in->ai_addr);
 
-                       if(err || !is_valid_hostname(resolved_host)) {
-                               freeaddrinfo(ai_in);
-                               continue;
-                       }
+               if(flags & MESHLINK_INVITE_NUMERIC) {
+                       // We don't need to do any further conversion
+                       freeaddrinfo(ai_in);
+                       continue;
+               }
 
-                       // Convert the hostname back to a sockaddr
-                       hint.ai_family = ai_in->ai_family;
-                       err = getaddrinfo(resolved_host, resolved_port, &hint, &ai_out);
+               // Convert it to a hostname
+               char resolved_host[NI_MAXHOST];
+               char resolved_port[NI_MAXSERV];
+               err = getnameinfo(ai_in->ai_addr, ai_in->ai_addrlen, resolved_host, sizeof resolved_host, resolved_port, sizeof resolved_port, NI_NUMERICSERV);
 
-                       if(err || !ai_out) {
-                               freeaddrinfo(ai_in);
-                               continue;
-                       }
+               if(err || !is_valid_hostname(resolved_host)) {
+                       freeaddrinfo(ai_in);
+                       continue;
+               }
 
-                       // Check if it's still the same sockaddr
-                       if(ai_in->ai_addrlen != ai_out->ai_addrlen || memcmp(ai_in->ai_addr, ai_out->ai_addr, ai_in->ai_addrlen)) {
-                               freeaddrinfo(ai_in);
-                               freeaddrinfo(ai_out);
-                               continue;
-                       }
+               // Convert the hostname back to a sockaddr
+               hint.ai_family = ai_in->ai_family;
+               err = getaddrinfo(resolved_host, resolved_port, &hint, &ai_out);
 
-                       // Yes: replace the hostname with the resolved one
-                       free(hostname[i]);
-                       hostname[i] = xstrdup(resolved_host);
+               if(err || !ai_out) {
+                       freeaddrinfo(ai_in);
+                       continue;
+               }
 
+               // Check if it's still the same sockaddr
+               if(ai_in->ai_addrlen != ai_out->ai_addrlen || memcmp(ai_in->ai_addr, ai_out->ai_addr, ai_in->ai_addrlen)) {
                        freeaddrinfo(ai_in);
                        freeaddrinfo(ai_out);
+                       continue;
                }
+
+               // Yes: replace the hostname with the resolved one
+               free(hostname[i]);
+               hostname[i] = xstrdup(resolved_host);
+
+               freeaddrinfo(ai_in);
+               freeaddrinfo(ai_out);
        }
 
        // Remove duplicates again, since IPv4 and IPv6 addresses might map to the same hostname
@@ -456,13 +464,6 @@ static char *get_my_hostname(meshlink_handle_t *mesh, uint32_t flags) {
                        continue;
                }
 
-               // Ensure we have the same addresses in our own host config file.
-               char *tmphostport;
-               xasprintf(&tmphostport, "%s %s", hostname[i], port[i]);
-               /// TODO: FIX
-               //config_add_string(&mesh->config, "Address", tmphostport);
-               free(tmphostport);
-
                // Append the address to the hostport string
                char *newhostport;
                xasprintf(&newhostport, (strchr(hostname[i], ':') ? "%s%s[%s]:%s" : "%s%s%s:%s"), hostport ? hostport : "", hostport ? "," : "", hostname[i], port[i]);
@@ -2372,7 +2373,7 @@ char *meshlink_invite_ex(meshlink_handle_t *mesh, meshlink_submesh_t *submesh, c
 
        // Check validity of the new node's name
        if(!check_id(name)) {
-               logger(mesh, MESHLINK_DEBUG, "Invalid name for node.\n");
+               logger(mesh, MESHLINK_ERROR, "Invalid name for node.\n");
                meshlink_errno = MESHLINK_EINVAL;
                pthread_mutex_unlock(&mesh->mutex);
                return NULL;
@@ -2380,7 +2381,7 @@ char *meshlink_invite_ex(meshlink_handle_t *mesh, meshlink_submesh_t *submesh, c
 
        // Ensure no host configuration file with that name exists
        if(config_exists(mesh, "current", name)) {
-               logger(mesh, MESHLINK_DEBUG, "A host config file for %s already exists!\n", name);
+               logger(mesh, MESHLINK_ERROR, "A host config file for %s already exists!\n", name);
                meshlink_errno = MESHLINK_EEXIST;
                pthread_mutex_unlock(&mesh->mutex);
                return NULL;
@@ -2388,7 +2389,7 @@ char *meshlink_invite_ex(meshlink_handle_t *mesh, meshlink_submesh_t *submesh, c
 
        // Ensure no other nodes know about this name
        if(meshlink_get_node(mesh, name)) {
-               logger(mesh, MESHLINK_DEBUG, "A node with name %s is already known!\n", name);
+               logger(mesh, MESHLINK_ERROR, "A node with name %s is already known!\n", name);
                meshlink_errno = MESHLINK_EEXIST;
                pthread_mutex_unlock(&mesh->mutex);
                return NULL;
@@ -2398,7 +2399,7 @@ char *meshlink_invite_ex(meshlink_handle_t *mesh, meshlink_submesh_t *submesh, c
        char *address = get_my_hostname(mesh, flags);
 
        if(!address) {
-               logger(mesh, MESHLINK_DEBUG, "No Address known for ourselves!\n");
+               logger(mesh, MESHLINK_ERROR, "No Address known for ourselves!\n");
                meshlink_errno = MESHLINK_ERESOLV;
                pthread_mutex_unlock(&mesh->mutex);
                return NULL;
@@ -2410,6 +2411,15 @@ char *meshlink_invite_ex(meshlink_handle_t *mesh, meshlink_submesh_t *submesh, c
                return NULL;
        }
 
+       // If we changed our own host config file, write it out now
+       if(mesh->self->status.dirty) {
+               if(!node_write_config(mesh, mesh->self)) {
+                       logger(mesh, MESHLINK_ERROR, "Could not write our own host conifg file!\n");
+                       pthread_mutex_unlock(&mesh->mutex);
+                       return NULL;
+               }
+       }
+
        char hash[64];
 
        // Create a hash of the key.
index 8c8ef6ed453809d05af4e24fad10627e8b5c5681..b5c25d03bec8ed4b60eeaaa811875c8c1d161af1 100644 (file)
@@ -260,8 +260,6 @@ bool node_write_config(meshlink_handle_t *mesh, node_t *n) {
                return false;
        }
 
-
-
        return true;
 }