#include "meshlink_internal.h"
#include "discovery.h"
+#include "sockaddr.h"
+#include "logger.h"
#include <pthread.h>
-#include <avahi-core/core.h>
-#include <avahi-core/lookup.h>
-#include <avahi-core/publish.h>
-#include <avahi-common/simple-watch.h>
-#include <avahi-common/malloc.h>
-#include <avahi-common/alternative.h>
-#include <avahi-common/error.h>
+#include <catta/core.h>
+#include <catta/lookup.h>
+#include <catta/publish.h>
+#include <catta/log.h>
+#include <catta/simple-watch.h>
+#include <catta/malloc.h>
+#include <catta/alternative.h>
+#include <catta/error.h>
-#define MESHLINK_MDNS_SERVICE_TYPE "_meshlink._tcp"
-//#define MESHLINK_MDNS_SERVICE_NAME "Meshlink"
+#include <netinet/in.h>
+
+#include <uuid/uuid.h>
+
+#define MESHLINK_MDNS_SERVICE_TYPE "_%s._tcp"
+#define MESHLINK_MDNS_NAME_KEY "name"
#define MESHLINK_MDNS_FINGERPRINT_KEY "fingerprint"
-static void discovery_resolve_callback(
- AvahiSServiceResolver *resolver,
- AVAHI_GCC_UNUSED AvahiIfIndex interface,
- AVAHI_GCC_UNUSED AvahiProtocol protocol,
- AvahiResolverEvent event,
- const char *name,
- const char *type,
- const char *domain,
- const char *host_name,
- const AvahiAddress *address,
- uint16_t port,
- AvahiStringList *txt,
- AvahiLookupResultFlags flags,
- AVAHI_GCC_UNUSED void* userdata)
+static void discovery_entry_group_callback(CattaServer *server, CattaSEntryGroup *group, CattaEntryGroupState state, void *userdata)
{
-
meshlink_handle_t *mesh = userdata;
- /* Called whenever a service has been resolved successfully or timed out */
-
- switch (event)
- {
- case AVAHI_RESOLVER_FAILURE:
- fprintf(stderr, "(Resolver) Failed to resolve service '%s' of type '%s' in domain '%s': %s\n", name, type, domain, avahi_strerror(avahi_server_errno(mesh->avahi_server)));
- break;
-
- case AVAHI_RESOLVER_FOUND:
- {
- char straddr[AVAHI_ADDRESS_STR_MAX], *strtxt;
-
- fprintf(stderr, "(Resolver) Service '%s' of type '%s' in domain '%s':\n", name, type, domain);
-
- avahi_address_snprint(straddr, sizeof(straddr), address);
- strtxt = avahi_string_list_to_string(txt);
- fprintf(stderr,
- "\t%s:%u (%s)\n"
- "\tTXT=%s\n"
- "\tcookie is %u\n"
- "\tis_local: %i\n"
- "\twide_area: %i\n"
- "\tmulticast: %i\n"
- "\tcached: %i\n",
- host_name, port, straddr,
- strtxt,
- avahi_string_list_get_service_cookie(txt),
- !!(flags & AVAHI_LOOKUP_RESULT_LOCAL),
- !!(flags & AVAHI_LOOKUP_RESULT_WIDE_AREA),
- !!(flags & AVAHI_LOOKUP_RESULT_MULTICAST),
- !!(flags & AVAHI_LOOKUP_RESULT_CACHED));
- avahi_free(strtxt);
-
- // retrieve fingerprint
- AvahiStringList *fgli = avahi_string_list_find(txt, MESHLINK_MDNS_FINGERPRINT_KEY);
- meshlink_node_t *node = meshlink_get_node(mesh, name);
-
- fprintf(stderr, "%p, %p, %s, %s\n", fgli, node, avahi_string_list_get_text(fgli), meshlink_get_fingerprint(mesh, node));
-
- if( node && fgli && strcmp(avahi_string_list_get_text(fgli)+strlen(MESHLINK_MDNS_FINGERPRINT_KEY)+1, meshlink_get_fingerprint(mesh, node)) == 0 )
- {
- fprintf(stderr, "Node %s is part of the mesh network - updating ip address.\n", node->name);
- }
- else
- {
- fprintf(stderr, "Node %s is not part of the mesh network - ignoring ip address.\n", node->name);
- }
- }
- }
-
- avahi_s_service_resolver_free(resolver);
-}
+ // asserts
+ assert(mesh != NULL);
+ assert(mesh->catta_server != NULL);
+ assert(mesh->catta_poll != NULL);
-static void discovery_entry_group_callback(AvahiServer *server, AvahiSEntryGroup *group, AvahiEntryGroupState state, AVAHI_GCC_UNUSED void *userdata)
-{
- meshlink_handle_t *mesh = userdata;
+ pthread_mutex_lock(&(mesh->mesh_mutex));
/* Called whenever the entry group state changes */
- switch (state)
+ switch(state)
{
- case AVAHI_ENTRY_GROUP_ESTABLISHED:
+ case CATTA_ENTRY_GROUP_ESTABLISHED:
/* The entry group has been established successfully */
- fprintf(stderr, "Service '%s' successfully established.\n", /*MESHLINK_MDNS_SERVICE_NAME*/ mesh->name);
+ logger(mesh, MESHLINK_DEBUG, "Catta Service successfully established.\n");
break;
- case AVAHI_ENTRY_GROUP_COLLISION:
- fprintf(stderr, "Service name collision '%s'\n", /*MESHLINK_MDNS_SERVICE_NAME*/ mesh->name);
+ case CATTA_ENTRY_GROUP_COLLISION:
+ logger(mesh, MESHLINK_WARNING, "Catta Service collision.\n");
+ // @TODO can we just set a new name and retry?
break;
- case AVAHI_ENTRY_GROUP_FAILURE :
- fprintf(stderr, "Entry group failure: %s\n", avahi_strerror(avahi_server_errno(mesh->avahi_server)));
-
+ case CATTA_ENTRY_GROUP_FAILURE :
/* Some kind of failure happened while we were registering our services */
- avahi_simple_poll_quit(mesh->avahi_poll);
+ logger(mesh, MESHLINK_ERROR, "Catta Entry group failure: %s\n", catta_strerror(catta_server_errno(mesh->catta_server)));
+ catta_simple_poll_quit(mesh->catta_poll);
break;
- case AVAHI_ENTRY_GROUP_UNCOMMITED:
- case AVAHI_ENTRY_GROUP_REGISTERING:
+ case CATTA_ENTRY_GROUP_UNCOMMITED:
+ case CATTA_ENTRY_GROUP_REGISTERING:
;
}
+
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
}
static void discovery_create_services(meshlink_handle_t *mesh)
{
- fprintf(stderr, "Adding service '%s'\n", /*MESHLINK_MDNS_SERVICE_NAME*/ mesh->name);
+ char *txt_name = NULL;
- /* If this is the first time we're called, let's create a new entry group */
- if (!mesh->avahi_group)
- if (!(mesh->avahi_group = avahi_s_entry_group_new(mesh->avahi_server, discovery_entry_group_callback, mesh))) {
- fprintf(stderr, "avahi_entry_group_new() failed: %s\n", avahi_strerror(avahi_server_errno(mesh->avahi_server)));
+ // asserts
+ assert(mesh != NULL);
+ assert(mesh->name != NULL);
+ assert(mesh->myport != NULL);
+ assert(mesh->catta_server != NULL);
+ assert(mesh->catta_poll != NULL);
+ assert(mesh->catta_servicetype != NULL);
+ assert(mesh->self != NULL);
+
+ pthread_mutex_lock(&(mesh->mesh_mutex));
+
+ logger(mesh, MESHLINK_DEBUG, "Adding service\n");
+
+ /* Ifthis is the first time we're called, let's create a new entry group */
+ if(!mesh->catta_group)
+ {
+ if(!(mesh->catta_group = catta_s_entry_group_new(mesh->catta_server, discovery_entry_group_callback, mesh)))
+ {
+ logger(mesh, MESHLINK_ERROR, "catta_entry_group_new() failed: %s\n", catta_strerror(catta_server_errno(mesh->catta_server)));
goto fail;
}
+ }
+
+ /* Create txt records */
+ size_t txt_name_len = sizeof(MESHLINK_MDNS_NAME_KEY) + 1 + strlen(mesh->name) + 1;
+ txt_name = malloc(txt_name_len);
+
+ if(txt_name == NULL)
+ {
+ logger(mesh, MESHLINK_ERROR, "Could not allocate memory for TXT record\n");
+ goto fail;
+ }
+
+ snprintf(txt_name, txt_name_len, "%s=%s", MESHLINK_MDNS_NAME_KEY, mesh->name);
- /* Create some random TXT data */
- char fingerprint[1024] = "";
- snprintf(fingerprint, sizeof(fingerprint), "%s=%s", MESHLINK_MDNS_FINGERPRINT_KEY, meshlink_get_fingerprint(mesh, meshlink_get_node(mesh, mesh->name)));
+ char txt_fingerprint[sizeof(MESHLINK_MDNS_FINGERPRINT_KEY) + 1 + MESHLINK_FINGERPRINTLEN + 1];
+ snprintf(txt_fingerprint, sizeof(txt_fingerprint), "%s=%s", MESHLINK_MDNS_FINGERPRINT_KEY, meshlink_get_fingerprint(mesh, (meshlink_node_t *)mesh->self));
- /* Add the service for IPP */
+ /* Add the service */
int ret = 0;
- if ((ret = avahi_server_add_service(mesh->avahi_server, mesh->avahi_group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, /*MESHLINK_MDNS_SERVICE_NAME*/ mesh->name, MESHLINK_MDNS_SERVICE_TYPE, NULL, NULL, mesh->myport ? atoi(mesh->myport) : 655, fingerprint, NULL)) < 0) {
- fprintf(stderr, "Failed to add _ipp._tcp service: %s\n", avahi_strerror(ret));
+ if((ret = catta_server_add_service(mesh->catta_server, mesh->catta_group, CATTA_IF_UNSPEC, CATTA_PROTO_UNSPEC, 0, meshlink_get_fingerprint(mesh, (meshlink_node_t *)mesh->self), mesh->catta_servicetype, NULL, NULL, atoi(mesh->myport), txt_name, txt_fingerprint, NULL)) < 0)
+ {
+ logger(mesh, MESHLINK_ERROR, "Failed to add service: %s\n", catta_strerror(ret));
goto fail;
}
/* Tell the server to register the service */
- if ((ret = avahi_s_entry_group_commit(mesh->avahi_group)) < 0) {
- fprintf(stderr, "Failed to commit entry_group: %s\n", avahi_strerror(ret));
+ if((ret = catta_s_entry_group_commit(mesh->catta_group)) < 0)
+ {
+ logger(mesh, MESHLINK_ERROR, "Failed to commit entry_group: %s\n", catta_strerror(ret));
goto fail;
}
- return;
+ goto done;
fail:
- avahi_simple_poll_quit(mesh->avahi_poll);
+ catta_simple_poll_quit(mesh->catta_poll);
+
+done:
+ if(txt_name)
+ { free(txt_name); }
+
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
}
-static void discovery_server_callback(AvahiServer *server, AvahiServerState state, AVAHI_GCC_UNUSED void * userdata)
+static void discovery_server_callback(CattaServer *server, CattaServerState state, void * userdata)
{
meshlink_handle_t *mesh = userdata;
- switch (state)
+ // asserts
+ assert(mesh != NULL);
+
+ pthread_mutex_lock(&(mesh->mesh_mutex));
+
+ switch(state)
{
- case AVAHI_SERVER_RUNNING:
- /* The serve has startup successfully and registered its host
- * name on the network, so it's time to create our services */
- if (!mesh->avahi_group)
- discovery_create_services(mesh);
+ case CATTA_SERVER_RUNNING:
+ {
+ /* The serve has startup successfully and registered its host
+ * name on the network, so it's time to create our services */
+ if(!mesh->catta_group)
+ {
+ discovery_create_services(mesh);
+ }
+ }
break;
- case AVAHI_SERVER_COLLISION:
- /* A host name collision happened. Let's do nothing */
+ case CATTA_SERVER_COLLISION:
+ {
+ // asserts
+ assert(mesh->catta_server != NULL);
+ assert(mesh->catta_poll != NULL);
+
+ /* A host name collision happened. Let's pick a new name for the server */
+ uuid_t hostname;
+ uuid_generate(hostname);
+
+ char hostnamestr[36+1];
+ uuid_unparse_lower(hostname, hostnamestr);
+
+ logger(mesh, MESHLINK_WARNING, "Catta host name collision, retrying with '%s'\n", hostnamestr);
+ int result = catta_server_set_host_name(mesh->catta_server, hostnamestr);
+
+ if(result < 0)
+ {
+ logger(mesh, MESHLINK_ERROR, "Catta failed to set new host name: %s\n", catta_strerror(result));
+ catta_simple_poll_quit(mesh->catta_poll);
+ }
+ }
break;
- case AVAHI_SERVER_REGISTERING:
- /* Let's drop our registered services. When the server is back
- * in AVAHI_SERVER_RUNNING state we will register them
- * again with the new host name. */
- //if (mesh->avahi_group)
- // avahi_s_entry_group_reset(mesh->avahi_group);
+ case CATTA_SERVER_REGISTERING:
+ {
+ /* Let's drop our registered services. When the server is back
+ * in CATTA_SERVER_RUNNING state we will register them
+ * again with the new host name. */
+ if(mesh->catta_group)
+ {
+ catta_s_entry_group_reset(mesh->catta_group);
+ mesh->catta_group = NULL;
+ }
+ }
break;
- case AVAHI_SERVER_FAILURE:
- /* Terminate on failure */
- fprintf(stderr, "Server failure: %s\n", avahi_strerror(avahi_server_errno(mesh->avahi_server)));
- avahi_simple_poll_quit(mesh->avahi_poll);
+ case CATTA_SERVER_FAILURE:
+ {
+ // asserts
+ assert(mesh->catta_server != NULL);
+ assert(mesh->catta_poll != NULL);
+
+ /* Terminate on failure */
+ logger(mesh, MESHLINK_ERROR, "Catta server failure: %s\n", catta_strerror(catta_server_errno(mesh->catta_server)));
+ catta_simple_poll_quit(mesh->catta_poll);
+ }
+ break;
+
+ case CATTA_SERVER_INVALID:
+ break;
+ }
+
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
+}
+
+static void discovery_resolve_callback(CattaSServiceResolver *resolver, CattaIfIndex interface, CattaProtocol protocol, CattaResolverEvent event, const char *name, const char *type, const char *domain, const char *host_name, const CattaAddress *address, uint16_t port, CattaStringList *txt, CattaLookupResultFlags flags, void* userdata)
+{
+ meshlink_handle_t *mesh = userdata;
+
+ // asserts
+ assert(resolver != NULL);
+ assert(mesh != NULL);
+ assert(mesh->catta_server != NULL);
+
+ pthread_mutex_lock(&(mesh->mesh_mutex));
+
+ /* Called whenever a service has been resolved successfully or timed out */
+ switch(event)
+ {
+ case CATTA_RESOLVER_FAILURE:
+ {
+ // asserts
+ assert(name != NULL);
+ assert(type != NULL);
+ assert(domain != NULL);
+
+ logger(mesh, MESHLINK_WARNING, "(Resolver) Failed to resolve service '%s' of type '%s' in domain '%s': %s\n", name, type, domain, catta_strerror(catta_server_errno(mesh->catta_server)));
+ }
break;
- case AVAHI_SERVER_INVALID:
+ case CATTA_RESOLVER_FOUND:
+ {
+ // asserts
+ assert(name != NULL);
+ assert(type != NULL);
+ assert(domain != NULL);
+ assert(host_name != NULL);
+ assert(address != NULL);
+ assert(txt != NULL);
+
+ char straddr[CATTA_ADDRESS_STR_MAX], *strtxt;
+
+ logger(mesh, MESHLINK_DEBUG, "(Resolver) Service '%s' of type '%s' in domain '%s':\n", name, type, domain);
+
+ catta_address_snprint(straddr, sizeof(straddr), address);
+ strtxt = catta_string_list_to_string(txt);
+ logger(mesh, MESHLINK_DEBUG,
+ "\t%s:%u (%s)\n"
+ "\tTXT=%s\n"
+ "\tcookie is %u\n"
+ "\tis_local: %i\n"
+ "\twide_area: %i\n"
+ "\tmulticast: %i\n"
+ "\tcached: %i\n",
+ host_name, port, straddr,
+ strtxt,
+ catta_string_list_get_service_cookie(txt),
+ !!(flags & CATTA_LOOKUP_RESULT_LOCAL),
+ !!(flags & CATTA_LOOKUP_RESULT_WIDE_AREA),
+ !!(flags & CATTA_LOOKUP_RESULT_MULTICAST),
+ !!(flags & CATTA_LOOKUP_RESULT_CACHED));
+ catta_free(strtxt);
+
+ // retrieve fingerprint
+ CattaStringList *node_name_li = catta_string_list_find(txt, MESHLINK_MDNS_NAME_KEY);
+ CattaStringList *node_fp_li = catta_string_list_find(txt, MESHLINK_MDNS_FINGERPRINT_KEY);
+
+ if(node_name_li != NULL && node_fp_li != NULL)
+ {
+ char *node_name = (char*)catta_string_list_get_text(node_name_li) + strlen(MESHLINK_MDNS_NAME_KEY);
+ char *node_fp = (char*)catta_string_list_get_text(node_fp_li) + strlen(MESHLINK_MDNS_FINGERPRINT_KEY);
+
+ if(node_name[0] == '=' && node_fp[0] == '=')
+ {
+ node_name += 1;
+ node_fp += 1;
+
+ meshlink_node_t *node = meshlink_get_node(mesh, node_name);
+
+ if(node != NULL)
+ {
+ logger(mesh, MESHLINK_INFO, "Node %s is part of the mesh network.\n", node->name);
+
+ sockaddr_t naddress;
+ memset(&naddress, 0, sizeof(naddress));
+
+ switch(address->proto)
+ {
+ case CATTA_PROTO_INET:
+ {
+ naddress.in.sin_family = AF_INET;
+ naddress.in.sin_port = htons(port);
+ naddress.in.sin_addr.s_addr = address->data.ipv4.address;
+ }
+ break;
+
+ case CATTA_PROTO_INET6:
+ {
+ naddress.in6.sin6_family = AF_INET6;
+ naddress.in6.sin6_port = htons(port);
+ memcpy(naddress.in6.sin6_addr.s6_addr, address->data.ipv6.address, sizeof(naddress.in6.sin6_addr.s6_addr));
+ }
+ break;
+
+ default:
+ naddress.unknown.family = AF_UNKNOWN;
+ break;
+ }
+
+ if(naddress.unknown.family != AF_UNKNOWN)
+ {
+ meshlink_hint_address(mesh, (meshlink_node_t *)node, (struct sockaddr*)&naddress);
+ }
+ else
+ {
+ logger(mesh, MESHLINK_WARNING, "Could not resolve node %s to a known address family type.\n", node->name);
+ }
+ }
+ else
+ {
+ logger(mesh, MESHLINK_WARNING, "Node %s is not part of the mesh network.\n", node_name);
+ }
+ }
+ else
+ {
+ logger(mesh, MESHLINK_WARNING, "TXT records invalid.\n");
+ }
+ }
+ else
+ {
+ logger(mesh, MESHLINK_WARNING, "TXT records missing.\n");
+ }
+ }
break;
}
+
+ catta_s_service_resolver_free(resolver);
+
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
}
-static void discovery_browse_callback(
- AvahiSServiceBrowser *browser,
- AvahiIfIndex interface,
- AvahiProtocol protocol,
- AvahiBrowserEvent event,
- const char *name,
- const char *type,
- const char *domain,
- AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
- void* userdata)
+static void discovery_browse_callback(CattaSServiceBrowser *browser, CattaIfIndex interface, CattaProtocol protocol, CattaBrowserEvent event, const char *name, const char *type, const char *domain, CattaLookupResultFlags flags, void* userdata)
{
meshlink_handle_t *mesh = userdata;
- /* Called whenever a new services becomes available on the LAN or is removed from the LAN */
+ // asserts
+ assert(mesh != NULL);
+ assert(mesh->catta_server != NULL);
+ assert(mesh->catta_poll != NULL);
+ pthread_mutex_lock(&(mesh->mesh_mutex));
+
+ /* Called whenever a new services becomes available on the LAN or is removed from the LAN */
switch (event)
{
- case AVAHI_BROWSER_FAILURE:
- fprintf(stderr, "(Browser) %s\n", avahi_strerror(avahi_server_errno(mesh->avahi_server)));
- avahi_simple_poll_quit(mesh->avahi_poll);
- return;
-
- case AVAHI_BROWSER_NEW:
- fprintf(stderr, "(Browser) NEW: service '%s' of type '%s' in domain '%s'\n", name, type, domain);
- /* We ignore the returned resolver object. In the callback
- function we free it. If the server is terminated before
- the callback function is called the server will free
- the resolver for us. */
- if (!(avahi_s_service_resolver_new(mesh->avahi_server, interface, protocol, name, type, domain, AVAHI_PROTO_UNSPEC, 0, discovery_resolve_callback, mesh)))
- fprintf(stderr, "Failed to resolve service '%s': %s\n", name, avahi_strerror(avahi_server_errno(mesh->avahi_server)));
+ case CATTA_BROWSER_FAILURE:
+ {
+ logger(mesh, MESHLINK_ERROR, "(Browser) %s\n", catta_strerror(catta_server_errno(mesh->catta_server)));
+ catta_simple_poll_quit(mesh->catta_poll);
+ }
+ break;
+
+ case CATTA_BROWSER_NEW:
+ {
+ // asserts
+ assert(name != NULL);
+ assert(type != NULL);
+ assert(domain != NULL);
+
+ logger(mesh, MESHLINK_DEBUG, "(Browser) NEW: service '%s' of type '%s' in domain '%s'\n", name, type, domain);
+ /* We ignore the returned resolver object. In the callback
+ function we free it. Ifthe server is terminated before
+ the callback function is called the server will free
+ the resolver for us. */
+ if(!(catta_s_service_resolver_new(mesh->catta_server, interface, protocol, name, type, domain, CATTA_PROTO_UNSPEC, 0, discovery_resolve_callback, mesh)))
+ {
+ logger(mesh, MESHLINK_DEBUG, "Failed to resolve service '%s': %s\n", name, catta_strerror(catta_server_errno(mesh->catta_server)));
+ }
+ }
break;
- case AVAHI_BROWSER_REMOVE:
- fprintf(stderr, "(Browser) REMOVE: service '%s' of type '%s' in domain '%s'\n", name, type, domain);
+ case CATTA_BROWSER_REMOVE:
+ {
+ // asserts
+ assert(name != NULL);
+ assert(type != NULL);
+ assert(domain != NULL);
+
+ logger(mesh, MESHLINK_DEBUG, "(Browser) REMOVE: service '%s' of type '%s' in domain '%s'\n", name, type, domain);
+ }
break;
- case AVAHI_BROWSER_ALL_FOR_NOW:
- case AVAHI_BROWSER_CACHE_EXHAUSTED:
- fprintf(stderr, "(Browser) %s\n", event == AVAHI_BROWSER_CACHE_EXHAUSTED ? "CACHE_EXHAUSTED" : "ALL_FOR_NOW");
+ case CATTA_BROWSER_ALL_FOR_NOW:
+ case CATTA_BROWSER_CACHE_EXHAUSTED:
+ {
+ logger(mesh, MESHLINK_DEBUG, "(Browser) %s\n", event == CATTA_BROWSER_CACHE_EXHAUSTED ? "CACHE_EXHAUSTED" : "ALL_FOR_NOW");
+ }
break;
}
+
+ pthread_mutex_unlock(&(mesh->mesh_mutex));
}
-static void *discovery_loop(void *arg)
+static void *discovery_loop(void *userdata)
{
- meshlink_handle_t *mesh = arg;
+ meshlink_handle_t *mesh = userdata;
- avahi_simple_poll_loop(mesh->avahi_poll);
+ // asserts
+ assert(mesh != NULL);
+ assert(mesh->catta_poll != NULL);
- return NULL;
+ catta_simple_poll_loop(mesh->catta_poll);
+
+ return NULL;
+}
+
+static void discovery_log_cb(CattaLogLevel level, const char *txt)
+{
+ meshlink_log_level_t mlevel = MESHLINK_CRITICAL;
+
+ switch(level)
+ {
+ case CATTA_LOG_ERROR:
+ mlevel = MESHLINK_ERROR;
+ break;
+
+ case CATTA_LOG_WARN:
+ mlevel = MESHLINK_WARNING;
+ break;
+
+ case CATTA_LOG_NOTICE:
+ case CATTA_LOG_INFO:
+ mlevel = MESHLINK_INFO;
+ break;
+
+ case CATTA_LOG_DEBUG:
+ mlevel = MESHLINK_DEBUG;
+ break;
+ }
+
+ logger(NULL, mlevel, "%s\n", txt);
}
bool discovery_start(meshlink_handle_t *mesh)
{
+ logger(mesh, MESHLINK_DEBUG, "discovery_start called\n");
+
+ // asserts
+ assert(mesh != NULL);
+ assert(mesh->catta_poll == NULL);
+ assert(mesh->catta_server == NULL);
+ assert(mesh->catta_browser == NULL);
+ assert(mesh->discovery_threadstarted == false);
+ assert(mesh->catta_servicetype == NULL);
+
+ // handle catta logs
+ catta_set_log_function(discovery_log_cb);
+
+ // create service type string
+ size_t servicetype_strlen = sizeof(MESHLINK_MDNS_SERVICE_TYPE) + strlen(mesh->appname) + 1;
+ mesh->catta_servicetype = malloc(servicetype_strlen);
+
+ if(mesh->catta_servicetype == NULL)
+ {
+ logger(mesh, MESHLINK_ERROR, "Failed to allocate memory for service type string.\n");
+ goto fail;
+ }
+
+ snprintf(mesh->catta_servicetype, servicetype_strlen, MESHLINK_MDNS_SERVICE_TYPE, mesh->appname);
+
// Allocate discovery loop object
- if (!(mesh->avahi_poll = avahi_simple_poll_new())) {
- fprintf(stderr, "Failed to create discovery poll object.\n");
+ if(!(mesh->catta_poll = catta_simple_poll_new()))
+ {
+ logger(mesh, MESHLINK_ERROR, "Failed to create discovery poll object.\n");
goto fail;
}
+ // generate some unique host name (we actually do not care about it)
+ uuid_t hostname;
+ uuid_generate(hostname);
+
+ char hostnamestr[36+1];
+ uuid_unparse_lower(hostname, hostnamestr);
+
// Let's set the host name for this server.
- AvahiServerConfig config;
- avahi_server_config_init(&config);
- config.host_name = avahi_strdup(mesh->name);
+ CattaServerConfig config;
+ catta_server_config_init(&config);
+ config.host_name = catta_strdup(hostnamestr);
config.publish_workstation = 0;
+ config.disallow_other_stacks = 0;
+ config.publish_hinfo = 0;
+ config.publish_addresses = 1;
+ config.publish_no_reverse = 1;
/* Allocate a new server */
int error;
- mesh->avahi_server = avahi_server_new(avahi_simple_poll_get(mesh->avahi_poll), &config, discovery_server_callback, mesh, &error);
+ mesh->catta_server = catta_server_new(catta_simple_poll_get(mesh->catta_poll), &config, discovery_server_callback, mesh, &error);
/* Free the configuration data */
- avahi_server_config_free(&config);
+ catta_server_config_free(&config);
/* Check wether creating the server object succeeded */
- if (!mesh->avahi_server) {
- fprintf(stderr, "Failed to create discovery server: %s\n", avahi_strerror(error));
+ if(!mesh->catta_server)
+ {
+ logger(mesh, MESHLINK_ERROR, "Failed to create discovery server: %s\n", catta_strerror(error));
goto fail;
}
// Create the service browser
- if (!(mesh->avahi_browser = avahi_s_service_browser_new(mesh->avahi_server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, MESHLINK_MDNS_SERVICE_TYPE, NULL, 0, discovery_browse_callback, mesh))) {
- fprintf(stderr, "Failed to create discovery service browser: %s\n", avahi_strerror(avahi_server_errno(mesh->avahi_server)));
+ if(!(mesh->catta_browser = catta_s_service_browser_new(mesh->catta_server, CATTA_IF_UNSPEC, CATTA_PROTO_UNSPEC, mesh->catta_servicetype, NULL, 0, discovery_browse_callback, mesh)))
+ {
+ logger(mesh, MESHLINK_ERROR, "Failed to create discovery service browser: %s\n", catta_strerror(catta_server_errno(mesh->catta_server)));
goto fail;
}
// Start the discovery thread
- if(pthread_create(&mesh->discovery_thread, NULL, discovery_loop, mesh) != 0) {
- fprintf(stderr, "Could not start discovery thread: %s\n", strerror(errno));
+ if(pthread_create(&mesh->discovery_thread, NULL, discovery_loop, mesh) != 0)
+ {
+ logger(mesh, MESHLINK_ERROR, "Could not start discovery thread: %s\n", strerror(errno));
memset(&mesh->discovery_thread, 0, sizeof mesh->discovery_thread);
goto fail;
}
return true;
fail:
- if (mesh->avahi_browser)
- avahi_s_service_browser_free(mesh->avahi_browser);
+ if(mesh->catta_browser != NULL)
+ {
+ catta_s_service_browser_free(mesh->catta_browser);
+ mesh->catta_browser = NULL;
+ }
- if (mesh->avahi_server)
- avahi_server_free(mesh->avahi_server);
+ if(mesh->catta_server != NULL)
+ {
+ catta_server_free(mesh->catta_server);
+ mesh->catta_server = NULL;
+ }
- if (mesh->avahi_poll)
- avahi_simple_poll_free(mesh->avahi_poll);
+ if(mesh->catta_poll != NULL)
+ {
+ catta_simple_poll_free(mesh->catta_poll);
+ mesh->catta_poll = NULL;
+ }
+
+ if(mesh->catta_servicetype != NULL)
+ {
+ free(mesh->catta_servicetype);
+ mesh->catta_servicetype = NULL;
+ }
return false;
}
void discovery_stop(meshlink_handle_t *mesh)
{
- // @TODO: Shut down
- avahi_simple_poll_quit(mesh->avahi_poll);
+ logger(mesh, MESHLINK_DEBUG, "discovery_stop called\n");
- // Wait for the discovery thread to finish
+ // asserts
+ assert(mesh != NULL);
- pthread_join(mesh->discovery_thread, NULL);
+ // Shut down
+ if(mesh->catta_poll)
+ {
+ catta_simple_poll_quit(mesh->catta_poll);
+ }
+
+ // Wait for the discovery thread to finish
+ if(mesh->discovery_threadstarted == true)
+ {
+ pthread_join(mesh->discovery_thread, NULL);
+ mesh->discovery_threadstarted = false;
+ }
// Clean up resources
- if (mesh->avahi_browser)
- avahi_s_service_browser_free(mesh->avahi_browser);
+ if(mesh->catta_browser != NULL)
+ {
+ catta_s_service_browser_free(mesh->catta_browser);
+ mesh->catta_browser = NULL;
+ }
+
+ if(mesh->catta_group)
+ {
+ catta_s_entry_group_reset(mesh->catta_group);
+ catta_s_entry_group_free(mesh->catta_group);
+ mesh->catta_group = NULL;
+ }
+
+ if(mesh->catta_server != NULL)
+ {
+ catta_server_free(mesh->catta_server);
+ mesh->catta_server = NULL;
+ }
- if (mesh->avahi_server)
- avahi_server_free(mesh->avahi_server);
+ if(mesh->catta_poll != NULL)
+ {
+ catta_simple_poll_free(mesh->catta_poll);
+ mesh->catta_poll = NULL;
+ }
- if (mesh->avahi_poll)
- avahi_simple_poll_free(mesh->avahi_poll);
+ if(mesh->catta_servicetype != NULL)
+ {
+ free(mesh->catta_servicetype);
+ mesh->catta_servicetype = NULL;
+ }
}
projects / meshlink / blobdiff