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authorMax Kellermann <max@duempel.org>2008-12-30 16:43:58 +0100
committerMax Kellermann <max@duempel.org>2008-12-30 16:43:58 +0100
commit49fa9708d51b907f0a372a1fc68a1e27c9edae5e (patch)
treed943b16f8943190cc4225040d67761a61d0394df /src/zeroconf.c
parentbbed35822e52a204bf3d82e5df4bb8d00b67af39 (diff)
downloadmpd-49fa9708d51b907f0a372a1fc68a1e27c9edae5e.tar.gz
mpd-49fa9708d51b907f0a372a1fc68a1e27c9edae5e.tar.xz
mpd-49fa9708d51b907f0a372a1fc68a1e27c9edae5e.zip
zeroconf: moved code to zeroconf-avahi.c and zeroconf-bonjour.c
Moved implementation specific code to their own sources, internal declarations in zeroconf-internal.h.
Diffstat (limited to 'src/zeroconf.c')
-rw-r--r--src/zeroconf.c558
1 files changed, 3 insertions, 555 deletions
diff --git a/src/zeroconf.c b/src/zeroconf.c
index 23d7a36e9..e51e5f045 100644
--- a/src/zeroconf.c
+++ b/src/zeroconf.c
@@ -17,18 +17,13 @@
*/
#include "zeroconf.h"
+#include "zeroconf-internal.h"
#include "conf.h"
-#include "listen.h"
-#include "ioops.h"
-#include "utils.h"
#include <glib.h>
#include <string.h>
-/* The dns-sd service type qualifier to publish */
-#define SERVICE_TYPE "_mpd._tcp"
-
/* The default service name to publish
* (overridden by 'zeroconf_name' config parameter)
*/
@@ -37,534 +32,6 @@
#define DEFAULT_ZEROCONF_ENABLED 1
static int zeroconfEnabled;
-static struct ioOps zeroConfIo;
-
-#ifdef HAVE_BONJOUR
-#include <dns_sd.h>
-
-static DNSServiceRef dnsReference;
-#endif
-
-/* Here is the implementation for Avahi (http://avahi.org) Zeroconf support */
-#ifdef HAVE_AVAHI
-
-#include <avahi-client/client.h>
-#include <avahi-client/publish.h>
-
-#include <avahi-common/alternative.h>
-#include <avahi-common/domain.h>
-#include <avahi-common/malloc.h>
-#include <avahi-common/error.h>
-
-/* Static avahi data */
-static AvahiEntryGroup *avahiGroup;
-static char *avahiName;
-static AvahiClient *avahiClient;
-static AvahiPoll avahiPoll;
-static int avahiRunning;
-
-static int avahiFdset(fd_set * rfds, fd_set * wfds, fd_set * efds);
-static int avahiFdconsume(int fdCount, fd_set * rfds, fd_set * wfds,
- fd_set * efds);
-
-/* Forward Declaration */
-static void avahiRegisterService(AvahiClient * c);
-
-struct AvahiWatch {
- struct AvahiWatch *prev;
- struct AvahiWatch *next;
- int fd;
- AvahiWatchEvent requestedEvent;
- AvahiWatchEvent observedEvent;
- AvahiWatchCallback callback;
- void *userdata;
-};
-
-struct AvahiTimeout {
- struct AvahiTimeout *prev;
- struct AvahiTimeout *next;
- struct timeval expiry;
- int enabled;
- AvahiTimeoutCallback callback;
- void *userdata;
-};
-
-static AvahiWatch *avahiWatchList;
-static AvahiTimeout *avahiTimeoutList;
-
-static AvahiWatch *avahiWatchNew(G_GNUC_UNUSED const AvahiPoll * api, int fd,
- AvahiWatchEvent event,
- AvahiWatchCallback callback, void *userdata)
-{
- struct AvahiWatch *newWatch = xmalloc(sizeof(struct AvahiWatch));
-
- newWatch->fd = fd;
- newWatch->requestedEvent = event;
- newWatch->observedEvent = 0;
- newWatch->callback = callback;
- newWatch->userdata = userdata;
-
- /* Insert at front of list */
- newWatch->next = avahiWatchList;
- avahiWatchList = newWatch;
- newWatch->prev = NULL;
- if (newWatch->next)
- newWatch->next->prev = newWatch;
-
- return newWatch;
-}
-
-static void avahiWatchUpdate(AvahiWatch * w, AvahiWatchEvent event)
-{
- assert(w != NULL);
- w->requestedEvent = event;
-}
-
-static AvahiWatchEvent avahiWatchGetEvents(AvahiWatch * w)
-{
- assert(w != NULL);
- return w->observedEvent;
-}
-
-static void avahiWatchFree(AvahiWatch * w)
-{
- assert(w != NULL);
-
- if (avahiWatchList == w)
- avahiWatchList = w->next;
- else if (w->prev != NULL)
- w->prev->next = w->next;
-
- free(w);
-}
-
-static void avahiCheckExpiry(AvahiTimeout * t)
-{
- assert(t != NULL);
- if (t->enabled) {
- struct timeval now;
- gettimeofday(&now, NULL);
- if (timercmp(&now, &(t->expiry), >)) {
- t->enabled = 0;
- t->callback(t, t->userdata);
- }
- }
-}
-
-static void avahiTimeoutUpdate(AvahiTimeout * t, const struct timeval *tv)
-{
- assert(t != NULL);
- if (tv) {
- t->enabled = 1;
- t->expiry.tv_sec = tv->tv_sec;
- t->expiry.tv_usec = tv->tv_usec;
- } else {
- t->enabled = 0;
- }
-}
-
-static void avahiTimeoutFree(AvahiTimeout * t)
-{
- assert(t != NULL);
-
- if (avahiTimeoutList == t)
- avahiTimeoutList = t->next;
- else if (t->prev != NULL)
- t->prev->next = t->next;
-
- free(t);
-}
-
-static AvahiTimeout *avahiTimeoutNew(G_GNUC_UNUSED const AvahiPoll * api,
- const struct timeval *tv,
- AvahiTimeoutCallback callback,
- void *userdata)
-{
- struct AvahiTimeout *newTimeout = xmalloc(sizeof(struct AvahiTimeout));
-
- newTimeout->callback = callback;
- newTimeout->userdata = userdata;
-
- avahiTimeoutUpdate(newTimeout, tv);
-
- /* Insert at front of list */
- newTimeout->next = avahiTimeoutList;
- avahiTimeoutList = newTimeout;
- newTimeout->prev = NULL;
- if (newTimeout->next)
- newTimeout->next->prev = newTimeout;
-
- return newTimeout;
-}
-
-/* Callback when the EntryGroup changes state */
-static void avahiGroupCallback(AvahiEntryGroup * g,
- AvahiEntryGroupState state,
- G_GNUC_UNUSED void *userdata)
-{
- char *n;
- assert(g);
-
- g_debug("Avahi: Service group changed to state %d", state);
-
- switch (state) {
- case AVAHI_ENTRY_GROUP_ESTABLISHED:
- /* The entry group has been established successfully */
- g_message("Avahi: Service '%s' successfully established.",
- avahiName);
- break;
-
- case AVAHI_ENTRY_GROUP_COLLISION:
- /* A service name collision happened. Let's pick a new name */
- n = avahi_alternative_service_name(avahiName);
- avahi_free(avahiName);
- avahiName = n;
-
- g_message("Avahi: Service name collision, renaming service to '%s'",
- avahiName);
-
- /* And recreate the services */
- avahiRegisterService(avahi_entry_group_get_client(g));
- break;
-
- case AVAHI_ENTRY_GROUP_FAILURE:
- g_warning("Avahi: Entry group failure: %s",
- avahi_strerror(avahi_client_errno
- (avahi_entry_group_get_client(g))));
- /* Some kind of failure happened while we were registering our services */
- avahiRunning = 0;
- break;
-
- case AVAHI_ENTRY_GROUP_UNCOMMITED:
- g_debug("Avahi: Service group is UNCOMMITED");
- break;
- case AVAHI_ENTRY_GROUP_REGISTERING:
- g_debug("Avahi: Service group is REGISTERING");
- }
-}
-
-/* Registers a new service with avahi */
-static void avahiRegisterService(AvahiClient * c)
-{
- int ret;
- assert(c);
- g_debug("Avahi: Registering service %s/%s", SERVICE_TYPE, avahiName);
-
- /* If this is the first time we're called,
- * let's create a new entry group */
- if (!avahiGroup) {
- avahiGroup = avahi_entry_group_new(c, avahiGroupCallback, NULL);
- if (!avahiGroup) {
- g_warning("Avahi: Failed to create avahi EntryGroup: %s",
- avahi_strerror(avahi_client_errno(c)));
- goto fail;
- }
- }
-
- /* Add the service */
- /* TODO: This currently binds to ALL interfaces.
- * We could maybe add a service per actual bound interface,
- * if that's better. */
- ret = avahi_entry_group_add_service(avahiGroup,
- AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
- 0, avahiName, SERVICE_TYPE, NULL,
- NULL, boundPort, NULL);
- if (ret < 0) {
- g_warning("Avahi: Failed to add service %s: %s", SERVICE_TYPE,
- avahi_strerror(ret));
- goto fail;
- }
-
- /* Tell the server to register the service group */
- ret = avahi_entry_group_commit(avahiGroup);
- if (ret < 0) {
- g_warning("Avahi: Failed to commit service group: %s",
- avahi_strerror(ret));
- goto fail;
- }
- return;
-
-fail:
- avahiRunning = 0;
-}
-
-/* Callback when avahi changes state */
-static void avahiClientCallback(AvahiClient * c, AvahiClientState state,
- G_GNUC_UNUSED void *userdata)
-{
- int reason;
- assert(c);
-
- /* Called whenever the client or server state changes */
- g_debug("Avahi: Client changed to state %d", state);
-
- switch (state) {
- case AVAHI_CLIENT_S_RUNNING:
- g_debug("Avahi: Client is RUNNING");
-
- /* The server has startup successfully and registered its host
- * name on the network, so it's time to create our services */
- if (!avahiGroup)
- avahiRegisterService(c);
- break;
-
- case AVAHI_CLIENT_FAILURE:
- reason = avahi_client_errno(c);
- if (reason == AVAHI_ERR_DISCONNECTED) {
- g_message("Avahi: Client Disconnected, "
- "will reconnect shortly");
- if (avahiGroup) {
- avahi_entry_group_free(avahiGroup);
- avahiGroup = NULL;
- }
- if (avahiClient)
- avahi_client_free(avahiClient);
- avahiClient =
- avahi_client_new(&avahiPoll,
- AVAHI_CLIENT_NO_FAIL,
- avahiClientCallback, NULL,
- &reason);
- if (!avahiClient) {
- g_warning("Avahi: Could not reconnect: %s",
- avahi_strerror(reason));
- avahiRunning = 0;
- }
- } else {
- g_warning("Avahi: Client failure: %s (terminal)",
- avahi_strerror(reason));
- avahiRunning = 0;
- }
- break;
-
- case AVAHI_CLIENT_S_COLLISION:
- g_debug("Avahi: Client is COLLISION");
- /* 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 (avahiGroup) {
- g_debug("Avahi: Resetting group");
- avahi_entry_group_reset(avahiGroup);
- }
-
- case AVAHI_CLIENT_S_REGISTERING:
- g_debug("Avahi: Client is REGISTERING");
- /* The server records are now being established. This
- * might be caused by a host name change. We need to wait
- * for our own records to register until the host name is
- * properly esatblished. */
-
- if (avahiGroup) {
- g_debug("Avahi: Resetting group");
- avahi_entry_group_reset(avahiGroup);
- }
-
- break;
-
- case AVAHI_CLIENT_CONNECTING:
- g_debug("Avahi: Client is CONNECTING");
- }
-}
-
-static int avahiFdset(fd_set * rfds, fd_set * wfds, fd_set * efds)
-{
- AvahiWatch *w;
- int maxfd = -1;
- if (!avahiRunning)
- return maxfd;
- for (w = avahiWatchList; w != NULL; w = w->next) {
- if (w->requestedEvent & AVAHI_WATCH_IN) {
- FD_SET(w->fd, rfds);
- }
- if (w->requestedEvent & AVAHI_WATCH_OUT) {
- FD_SET(w->fd, wfds);
- }
- if (w->requestedEvent & AVAHI_WATCH_ERR) {
- FD_SET(w->fd, efds);
- }
- if (w->requestedEvent & AVAHI_WATCH_HUP) {
- g_warning("Avahi: No support for HUP events! (ignoring)");
- }
-
- if (w->fd > maxfd)
- maxfd = w->fd;
- }
- return maxfd;
-}
-
-static int avahiFdconsume(int fdCount, fd_set * rfds, fd_set * wfds,
- fd_set * efds)
-{
- int retval = fdCount;
- AvahiTimeout *t;
- AvahiWatch *w = avahiWatchList;
-
- while (w != NULL && retval > 0) {
- AvahiWatch *current = w;
- current->observedEvent = 0;
- if (FD_ISSET(current->fd, rfds)) {
- current->observedEvent |= AVAHI_WATCH_IN;
- FD_CLR(current->fd, rfds);
- retval--;
- }
- if (FD_ISSET(current->fd, wfds)) {
- current->observedEvent |= AVAHI_WATCH_OUT;
- FD_CLR(current->fd, wfds);
- retval--;
- }
- if (FD_ISSET(current->fd, efds)) {
- current->observedEvent |= AVAHI_WATCH_ERR;
- FD_CLR(current->fd, efds);
- retval--;
- }
-
- /* Advance to the next one right now, in case the callback
- * removes itself
- */
- w = w->next;
-
- if (current->observedEvent && avahiRunning) {
- current->callback(current, current->fd,
- current->observedEvent,
- current->userdata);
- }
- }
-
- t = avahiTimeoutList;
- while (t != NULL && avahiRunning) {
- AvahiTimeout *current = t;
-
- /* Advance to the next one right now, in case the callback
- * removes itself
- */
- t = t->next;
- avahiCheckExpiry(current);
- }
-
- return retval;
-}
-
-static void init_avahi(const char *serviceName)
-{
- int error;
- g_debug("Avahi: Initializing interface");
-
- if (!avahi_is_valid_service_name(serviceName))
- g_error("Invalid zeroconf_name \"%s\"", serviceName);
-
- avahiName = avahi_strdup(serviceName);
-
- avahiRunning = 1;
-
- avahiPoll.userdata = NULL;
- avahiPoll.watch_new = avahiWatchNew;
- avahiPoll.watch_update = avahiWatchUpdate;
- avahiPoll.watch_get_events = avahiWatchGetEvents;
- avahiPoll.watch_free = avahiWatchFree;
- avahiPoll.timeout_new = avahiTimeoutNew;
- avahiPoll.timeout_update = avahiTimeoutUpdate;
- avahiPoll.timeout_free = avahiTimeoutFree;
-
- avahiClient = avahi_client_new(&avahiPoll, AVAHI_CLIENT_NO_FAIL,
- avahiClientCallback, NULL, &error);
-
- if (!avahiClient) {
- g_warning("Avahi: Failed to create client: %s",
- avahi_strerror(error));
- goto fail;
- }
-
- zeroConfIo.fdset = avahiFdset;
- zeroConfIo.consume = avahiFdconsume;
- registerIO(&zeroConfIo);
-
- return;
-
-fail:
- finishZeroconf();
-}
-#endif /* HAVE_AVAHI */
-
-#ifdef HAVE_BONJOUR
-static int dnsRegisterFdset(fd_set * rfds, fd_set * wfds, fd_set * efds)
-{
- int fd;
-
- if (dnsReference == NULL)
- return -1;
-
- fd = DNSServiceRefSockFD(dnsReference);
- if (fd == -1)
- return -1;
-
- FD_SET(fd, rfds);
-
- return fd;
-}
-
-static int dnsRegisterFdconsume(int fdCount, fd_set * rfds, fd_set * wfds,
- fd_set * efds)
-{
- int fd;
-
- if (dnsReference == NULL)
- return -1;
-
- fd = DNSServiceRefSockFD(dnsReference);
- if (fd == -1)
- return -1;
-
- if (FD_ISSET(fd, rfds)) {
- FD_CLR(fd, rfds);
-
- DNSServiceProcessResult(dnsReference);
-
- return fdCount - 1;
- }
-
- return fdCount;
-}
-
-static void dnsRegisterCallback(DNSServiceRef sdRef, DNSServiceFlags flags,
- DNSServiceErrorType errorCode, const char *name,
- const char *regtype, const char *domain,
- void *context)
-{
- if (errorCode != kDNSServiceErr_NoError) {
- g_warning("Failed to register zeroconf service.");
-
- DNSServiceRefDeallocate(dnsReference);
- dnsReference = NULL;
- deregisterIO(&zeroConfIo);
- } else {
- g_debug("Registered zeroconf service with name '%s'", name);
- }
-}
-
-static void init_zeroconf_osx(const char *serviceName)
-{
- DNSServiceErrorType error = DNSServiceRegister(&dnsReference,
- 0, 0, serviceName,
- SERVICE_TYPE, NULL, NULL,
- htons(boundPort), 0,
- NULL,
- dnsRegisterCallback,
- NULL);
-
- if (error != kDNSServiceErr_NoError) {
- g_warning("Failed to register zeroconf service.");
-
- if (dnsReference) {
- DNSServiceRefDeallocate(dnsReference);
- dnsReference = NULL;
- }
- return;
- }
-
- zeroConfIo.fdset = dnsRegisterFdset;
- zeroConfIo.consume = dnsRegisterFdconsume;
- registerIO(&zeroConfIo);
-}
-#endif
void initZeroconf(void)
{
@@ -598,29 +65,10 @@ void finishZeroconf(void)
return;
#ifdef HAVE_AVAHI
- g_debug("Avahi: Shutting down interface");
- deregisterIO(&zeroConfIo);
-
- if (avahiGroup) {
- avahi_entry_group_free(avahiGroup);
- avahiGroup = NULL;
- }
-
- if (avahiClient) {
- avahi_client_free(avahiClient);
- avahiClient = NULL;
- }
-
- avahi_free(avahiName);
- avahiName = NULL;
+ avahi_finish();
#endif /* HAVE_AVAHI */
#ifdef HAVE_BONJOUR
- deregisterIO(&zeroConfIo);
- if (dnsReference != NULL) {
- DNSServiceRefDeallocate(dnsReference);
- dnsReference = NULL;
- g_debug("Deregistered Zeroconf service.");
- }
+ bonjour_finish();
#endif
}