X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=avahi-client%2Fbrowser.c;h=c978d942a80e11b64c6a228257ac281d65c38308;hb=7a5b2f69af7d36d6cd4153142f125fa011784e03;hp=122d6f2f74b02676f0b4573dcdcb3f0ee431b4fd;hpb=6b391bb81f0dce0193a722254016b26c12a17643;p=catta diff --git a/avahi-client/browser.c b/avahi-client/browser.c index 122d6f2..c978d94 100644 --- a/avahi-client/browser.c +++ b/avahi-client/browser.c @@ -1,18 +1,16 @@ -/* $Id$ */ - /*** This file is part of avahi. - + avahi is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. - + avahi is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. - + You should have received a copy of the GNU Lesser General Public License along with avahi; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 @@ -34,9 +32,74 @@ #include #include #include +#include #include "client.h" #include "internal.h" +#include "xdg-config.h" + +static void parse_environment(AvahiDomainBrowser *b) { + char buf[AVAHI_DOMAIN_NAME_MAX*3], *e, *t, *p; + + assert(b); + + if (!(e = getenv("AVAHI_BROWSE_DOMAINS"))) + return; + + snprintf(buf, sizeof(buf), "%s", e); + + for (t = strtok_r(buf, ":", &p); t; t = strtok_r(NULL, ":", &p)) { + char domain[AVAHI_DOMAIN_NAME_MAX]; + if (avahi_normalize_name(t, domain, sizeof(domain))) + b->static_browse_domains = avahi_string_list_add(b->static_browse_domains, domain); + } +} + +static void parse_domain_file(AvahiDomainBrowser *b) { + FILE *f; + char buf[AVAHI_DOMAIN_NAME_MAX]; + + assert(b); + + if (!(f = avahi_xdg_config_open("avahi/browse-domains"))) + return; + + + while (fgets(buf, sizeof(buf)-1, f)) { + char domain[AVAHI_DOMAIN_NAME_MAX]; + buf[strcspn(buf, "\n\r")] = 0; + + if (avahi_normalize_name(buf, domain, sizeof(domain))) + b->static_browse_domains = avahi_string_list_add(b->static_browse_domains, domain); + } +} + +static void domain_browser_ref(AvahiDomainBrowser *db) { + assert(db); + assert(db->ref >= 1); + db->ref++; +} + +static void defer_timeout_callback(AvahiTimeout *t, void *userdata) { + AvahiDomainBrowser *db = userdata; + AvahiStringList *l; + assert(t); + + db->client->poll_api->timeout_free(db->defer_timeout); + db->defer_timeout = NULL; + + domain_browser_ref(db); + + for (l = db->static_browse_domains; l; l = l->next) { + + if (db->ref <= 1) + break; + + db->callback(db, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_BROWSER_NEW, (char*) l->text, AVAHI_LOOKUP_RESULT_STATIC, db->userdata); + } + + avahi_domain_browser_free(db); +} AvahiDomainBrowser* avahi_domain_browser_new( AvahiClient *client, @@ -47,7 +110,7 @@ AvahiDomainBrowser* avahi_domain_browser_new( AvahiLookupFlags flags, AvahiDomainBrowserCallback callback, void *userdata) { - + AvahiDomainBrowser *db = NULL; DBusMessage *message = NULL, *reply = NULL; DBusError error; @@ -60,7 +123,7 @@ AvahiDomainBrowser* avahi_domain_browser_new( dbus_error_init (&error); - if (client->state == AVAHI_CLIENT_DISCONNECTED) { + if (!avahi_client_is_connected(client)) { avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); goto fail; } @@ -73,15 +136,25 @@ AvahiDomainBrowser* avahi_domain_browser_new( goto fail; } + db->ref = 1; db->client = client; db->callback = callback; db->userdata = userdata; db->path = NULL; db->interface = interface; db->protocol = protocol; + db->static_browse_domains = NULL; + db->defer_timeout = NULL; AVAHI_LLIST_PREPEND(AvahiDomainBrowser, domain_browsers, client->domain_browsers, db); + if (!(client->flags & AVAHI_CLIENT_IGNORE_USER_CONFIG)) { + parse_environment(db); + parse_domain_file(db); + } + + db->static_browse_domains = avahi_string_list_reverse(db->static_browse_domains); + if (!(message = dbus_message_new_method_call (AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "DomainBrowserNew"))) { avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); goto fail; @@ -98,7 +171,7 @@ AvahiDomainBrowser* avahi_domain_browser_new( DBUS_TYPE_INT32, &i_protocol, DBUS_TYPE_STRING, &domain, DBUS_TYPE_INT32, &bt, - DBUS_TYPE_UINT32, &flags, + DBUS_TYPE_UINT32, &u_flags, DBUS_TYPE_INVALID))) { avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); goto fail; @@ -125,9 +198,18 @@ AvahiDomainBrowser* avahi_domain_browser_new( goto fail; } + if (db->static_browse_domains && btype == AVAHI_DOMAIN_BROWSER_BROWSE) { + struct timeval tv = { 0, 0 }; + + if (!(db->defer_timeout = client->poll_api->timeout_new(client->poll_api, &tv, defer_timeout_callback, db))) { + avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); + goto fail; + } + } + dbus_message_unref(message); dbus_message_unref(reply); - + return db; fail: @@ -139,7 +221,7 @@ fail: if (db) avahi_domain_browser_free(db); - + if (message) dbus_message_unref(message); @@ -159,13 +241,22 @@ int avahi_domain_browser_free (AvahiDomainBrowser *b) { int r = AVAHI_OK; assert(b); + assert(b->ref >= 1); + + if (--(b->ref) >= 1) + return AVAHI_OK; + client = b->client; - if (b->path && client->state != AVAHI_CLIENT_DISCONNECTED) + if (b->path && avahi_client_is_connected(b->client)) r = avahi_client_simple_method_call(client, b->path, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "Free"); AVAHI_LLIST_REMOVE(AvahiDomainBrowser, domain_browsers, client->domain_browsers, b); + if (b->defer_timeout) + b->client->poll_api->timeout_free(b->defer_timeout); + + avahi_string_list_free(b->static_browse_domains); avahi_free(b->path); avahi_free(b); @@ -179,10 +270,11 @@ DBusHandlerResult avahi_domain_browser_event (AvahiClient *client, AvahiBrowserE char *domain = NULL; int32_t interface, protocol; uint32_t flags = 0; + AvahiStringList *l; assert(client); assert(message); - + dbus_error_init (&error); if (!(path = dbus_message_get_path(message))) @@ -201,7 +293,7 @@ DBusHandlerResult avahi_domain_browser_event (AvahiClient *client, AvahiBrowserE switch (event) { case AVAHI_BROWSER_NEW: case AVAHI_BROWSER_REMOVE: - + if (!dbus_message_get_args( message, &error, DBUS_TYPE_INT32, &interface, @@ -215,14 +307,14 @@ DBusHandlerResult avahi_domain_browser_event (AvahiClient *client, AvahiBrowserE } break; - + case AVAHI_BROWSER_CACHE_EXHAUSTED: case AVAHI_BROWSER_ALL_FOR_NOW: break; case AVAHI_BROWSER_FAILURE: { char *etxt; - + if (!dbus_message_get_args( message, &error, DBUS_TYPE_STRING, &etxt, @@ -231,12 +323,19 @@ DBusHandlerResult avahi_domain_browser_event (AvahiClient *client, AvahiBrowserE fprintf(stderr, "Failed to parse browser event.\n"); goto fail; } - + avahi_client_set_errno(db->client, avahi_error_dbus_to_number(etxt)); break; } } + if (domain) + for (l = db->static_browse_domains; l; l = l->next) + if (avahi_domain_equal((char*) l->text, domain)) { + /* We had this entry already in the static entries */ + return DBUS_HANDLER_RESULT_HANDLED; + } + db->callback(db, (AvahiIfIndex) interface, (AvahiProtocol) protocol, event, domain, (AvahiLookupResultFlags) flags, db->userdata); return DBUS_HANDLER_RESULT_HANDLED; @@ -247,15 +346,16 @@ fail: } /* AvahiServiceTypeBrowser */ + AvahiServiceTypeBrowser* avahi_service_type_browser_new( AvahiClient *client, AvahiIfIndex interface, AvahiProtocol protocol, const char *domain, - AvahiLookupFlags flags, + AvahiLookupFlags flags, AvahiServiceTypeBrowserCallback callback, void *userdata) { - + AvahiServiceTypeBrowser *b = NULL; DBusMessage *message = NULL, *reply = NULL; DBusError error; @@ -268,7 +368,7 @@ AvahiServiceTypeBrowser* avahi_service_type_browser_new( dbus_error_init(&error); - if (client->state == AVAHI_CLIENT_DISCONNECTED) { + if (!avahi_client_is_connected(client)) { avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); goto fail; } @@ -296,12 +396,12 @@ AvahiServiceTypeBrowser* avahi_service_type_browser_new( avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); goto fail; } - + if (!(message = dbus_message_new_method_call (AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "ServiceTypeBrowserNew"))) { avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); goto fail; } - + i_interface = (int32_t) interface; i_protocol = (int32_t) protocol; u_flags = (uint32_t) flags; @@ -344,7 +444,7 @@ AvahiServiceTypeBrowser* avahi_service_type_browser_new( return b; fail: - + if (dbus_error_is_set(&error)) { avahi_client_set_dbus_error(client, &error); dbus_error_free(&error); @@ -352,7 +452,7 @@ fail: if (b) avahi_service_type_browser_free(b); - + if (message) dbus_message_unref(message); @@ -374,7 +474,7 @@ int avahi_service_type_browser_free (AvahiServiceTypeBrowser *b) { assert(b); client = b->client; - if (b->path && client->state != AVAHI_CLIENT_DISCONNECTED) + if (b->path && avahi_client_is_connected(b->client)) r = avahi_client_simple_method_call(client, b->path, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "Free"); AVAHI_LLIST_REMOVE(AvahiServiceTypeBrowser, service_type_browsers, b->client->service_type_browsers, b); @@ -395,7 +495,7 @@ DBusHandlerResult avahi_service_type_browser_event (AvahiClient *client, AvahiBr assert(client); assert(message); - + dbus_error_init (&error); if (!(path = dbus_message_get_path(message))) @@ -411,7 +511,7 @@ DBusHandlerResult avahi_service_type_browser_event (AvahiClient *client, AvahiBr domain = b->domain; interface = b->interface; protocol = b->protocol; - + switch (event) { case AVAHI_BROWSER_NEW: case AVAHI_BROWSER_REMOVE: @@ -428,14 +528,14 @@ DBusHandlerResult avahi_service_type_browser_event (AvahiClient *client, AvahiBr goto fail; } break; - + case AVAHI_BROWSER_CACHE_EXHAUSTED: case AVAHI_BROWSER_ALL_FOR_NOW: break; case AVAHI_BROWSER_FAILURE: { char *etxt; - + if (!dbus_message_get_args( message, &error, DBUS_TYPE_STRING, &etxt, @@ -444,7 +544,7 @@ DBusHandlerResult avahi_service_type_browser_event (AvahiClient *client, AvahiBr fprintf(stderr, "Failed to parse browser event.\n"); goto fail; } - + avahi_client_set_errno(b->client, avahi_error_dbus_to_number(etxt)); break; } @@ -467,10 +567,10 @@ AvahiServiceBrowser* avahi_service_browser_new( AvahiProtocol protocol, const char *type, const char *domain, - AvahiLookupFlags flags, + AvahiLookupFlags flags, AvahiServiceBrowserCallback callback, void *userdata) { - + AvahiServiceBrowser *b = NULL; DBusMessage *message = NULL, *reply = NULL; DBusError error; @@ -484,7 +584,7 @@ AvahiServiceBrowser* avahi_service_browser_new( dbus_error_init(&error); - if (client->state == AVAHI_CLIENT_DISCONNECTED) { + if (!avahi_client_is_connected(client)) { avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); goto fail; } @@ -496,7 +596,7 @@ AvahiServiceBrowser* avahi_service_browser_new( avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); goto fail; } - + b->client = client; b->callback = callback; b->userdata = userdata; @@ -511,13 +611,13 @@ AvahiServiceBrowser* avahi_service_browser_new( avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); goto fail; } - + if (domain && domain[0]) if (!(b->domain = avahi_strdup(domain))) { avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); goto fail; } - + if (!(message = dbus_message_new_method_call (AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "ServiceBrowserNew"))) { avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); goto fail; @@ -562,7 +662,7 @@ AvahiServiceBrowser* avahi_service_browser_new( dbus_message_unref(message); dbus_message_unref(reply); - + return b; fail: @@ -573,7 +673,7 @@ fail: if (b) avahi_service_browser_free(b); - + if (message) dbus_message_unref(message); @@ -595,7 +695,7 @@ int avahi_service_browser_free (AvahiServiceBrowser *b) { assert(b); client = b->client; - if (b->path && client->state != AVAHI_CLIENT_DISCONNECTED) + if (b->path && avahi_client_is_connected(b->client)) r = avahi_client_simple_method_call(client, b->path, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "Free"); AVAHI_LLIST_REMOVE(AvahiServiceBrowser, service_browsers, b->client->service_browsers, b); @@ -635,7 +735,7 @@ DBusHandlerResult avahi_service_browser_event(AvahiClient *client, AvahiBrowserE switch (event) { case AVAHI_BROWSER_NEW: case AVAHI_BROWSER_REMOVE: - + if (!dbus_message_get_args ( message, &error, DBUS_TYPE_INT32, &interface, @@ -657,7 +757,7 @@ DBusHandlerResult avahi_service_browser_event(AvahiClient *client, AvahiBrowserE case AVAHI_BROWSER_FAILURE: { char *etxt; - + if (!dbus_message_get_args( message, &error, DBUS_TYPE_STRING, &etxt, @@ -666,7 +766,7 @@ DBusHandlerResult avahi_service_browser_event(AvahiClient *client, AvahiBrowserE fprintf(stderr, "Failed to parse browser event.\n"); goto fail; } - + avahi_client_set_errno(b->client, avahi_error_dbus_to_number(etxt)); break; } @@ -681,4 +781,245 @@ fail: return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; } +/* AvahiRecordBrowser */ + +AvahiRecordBrowser* avahi_record_browser_new( + AvahiClient *client, + AvahiIfIndex interface, + AvahiProtocol protocol, + const char *name, + uint16_t clazz, + uint16_t type, + AvahiLookupFlags flags, + AvahiRecordBrowserCallback callback, + void *userdata) { + + AvahiRecordBrowser *b = NULL; + DBusMessage *message = NULL, *reply = NULL; + DBusError error; + char *path; + int32_t i_protocol, i_interface; + uint32_t u_flags; + assert(client); + assert(name); + assert(callback); + + dbus_error_init(&error); + + if (!avahi_client_is_connected(client)) { + avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); + goto fail; + } + + if (!(b = avahi_new(AvahiRecordBrowser, 1))) { + avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); + goto fail; + } + + b->client = client; + b->callback = callback; + b->userdata = userdata; + b->path = NULL; + b->name = NULL; + b->clazz = clazz; + b->type = type; + b->interface = interface; + b->protocol = protocol; + + AVAHI_LLIST_PREPEND(AvahiRecordBrowser, record_browsers, client->record_browsers, b); + + if (!(b->name = avahi_strdup(name))) { + avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); + goto fail; + } + + if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "RecordBrowserNew"))) { + avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); + goto fail; + } + + i_interface = (int32_t) interface; + i_protocol = (int32_t) protocol; + u_flags = (uint32_t) flags; + + if (!dbus_message_append_args( + message, + DBUS_TYPE_INT32, &i_interface, + DBUS_TYPE_INT32, &i_protocol, + DBUS_TYPE_STRING, &name, + DBUS_TYPE_UINT16, &clazz, + DBUS_TYPE_UINT16, &type, + DBUS_TYPE_UINT32, &u_flags, + DBUS_TYPE_INVALID)) { + avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); + goto fail; + } + + if (!(reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error)) || + dbus_error_is_set(&error)) { + avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); + goto fail; + } + + if (!dbus_message_get_args (reply, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID) || + dbus_error_is_set(&error) || + !path) { + avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); + goto fail; + } + + if (!(b->path = avahi_strdup(path))) { + + /* FIXME: We don't remove the object on the server side */ + + avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); + goto fail; + } + + dbus_message_unref(message); + dbus_message_unref(reply); + + return b; + +fail: + if (dbus_error_is_set(&error)) { + avahi_client_set_dbus_error(client, &error); + dbus_error_free(&error); + } + + if (b) + avahi_record_browser_free(b); + + if (message) + dbus_message_unref(message); + + if (reply) + dbus_message_unref(reply); + + return NULL; +} + +AvahiClient* avahi_record_browser_get_client (AvahiRecordBrowser *b) { + assert(b); + return b->client; +} + +int avahi_record_browser_free (AvahiRecordBrowser *b) { + AvahiClient *client; + int r = AVAHI_OK; + + assert(b); + client = b->client; + + if (b->path && avahi_client_is_connected(b->client)) + r = avahi_client_simple_method_call(client, b->path, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "Free"); + + AVAHI_LLIST_REMOVE(AvahiRecordBrowser, record_browsers, b->client->record_browsers, b); + + avahi_free(b->path); + avahi_free(b->name); + avahi_free(b); + return r; +} + +DBusHandlerResult avahi_record_browser_event(AvahiClient *client, AvahiBrowserEvent event, DBusMessage *message) { + AvahiRecordBrowser *b = NULL; + DBusError error; + const char *path; + char *name; + int32_t interface, protocol; + uint32_t flags = 0; + uint16_t clazz, type; + void *rdata = NULL; + int rdata_size = 0; + + dbus_error_init (&error); + + if (!(path = dbus_message_get_path(message))) + goto fail; + + for (b = client->record_browsers; b; b = b->record_browsers_next) + if (strcmp (b->path, path) == 0) + break; + + if (!b) + goto fail; + + interface = b->interface; + protocol = b->protocol; + clazz = b->clazz; + type = b->type; + name = b->name; + + switch (event) { + case AVAHI_BROWSER_NEW: + case AVAHI_BROWSER_REMOVE: { + DBusMessageIter iter, sub; + int j; + + if (!dbus_message_get_args ( + message, &error, + DBUS_TYPE_INT32, &interface, + DBUS_TYPE_INT32, &protocol, + DBUS_TYPE_STRING, &name, + DBUS_TYPE_UINT16, &clazz, + DBUS_TYPE_UINT16, &type, + DBUS_TYPE_INVALID) || + dbus_error_is_set(&error)) { + fprintf(stderr, "Failed to parse browser event.\n"); + goto fail; + } + + + dbus_message_iter_init(message, &iter); + + for (j = 0; j < 5; j++) + dbus_message_iter_next(&iter); + + if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || + dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_BYTE) + goto fail; + + dbus_message_iter_recurse(&iter, &sub); + dbus_message_iter_get_fixed_array(&sub, &rdata, &rdata_size); + + dbus_message_iter_next(&iter); + + if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32) + goto fail; + + dbus_message_iter_get_basic(&iter, &flags); + + break; + } + + case AVAHI_BROWSER_CACHE_EXHAUSTED: + case AVAHI_BROWSER_ALL_FOR_NOW: + break; + + case AVAHI_BROWSER_FAILURE: { + char *etxt; + + if (!dbus_message_get_args( + message, &error, + DBUS_TYPE_STRING, &etxt, + DBUS_TYPE_INVALID) || + dbus_error_is_set (&error)) { + fprintf(stderr, "Failed to parse browser event.\n"); + goto fail; + } + + avahi_client_set_errno(b->client, avahi_error_dbus_to_number(etxt)); + break; + } + } + + b->callback(b, (AvahiIfIndex) interface, (AvahiProtocol) protocol, event, name, clazz, type, rdata, (size_t) rdata_size, (AvahiLookupResultFlags) flags, b->userdata); + + return DBUS_HANDLER_RESULT_HANDLED; + +fail: + dbus_error_free (&error); + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; +}