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zeroconf: computer native protocol port automatically

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This commit is contained in:
Lennart Poettering 2009-04-30 02:36:02 +02:00
parent d6964160d5
commit 407a8105d0
1 changed files with 32 additions and 13 deletions
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45
src/modules/module-zeroconf-publish.c
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@ -37,6 +37,7 @@
#include <pulse/xmalloc.h>
#include <pulse/util.h>
#include <pulsecore/parseaddr.h>
#include <pulsecore/sink.h>
#include <pulsecore/source.h>
#include <pulsecore/native-common.h>
@ -47,6 +48,7 @@
#include <pulsecore/modargs.h>
#include <pulsecore/avahi-wrap.h>
#include <pulsecore/endianmacros.h>
#include <pulsecore/protocol-native.h>
#include "module-zeroconf-publish-symdef.h"
@ -54,7 +56,6 @@ PA_MODULE_AUTHOR("Lennart Poettering");
PA_MODULE_DESCRIPTION("mDNS/DNS-SD Service Publisher");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(TRUE);
PA_MODULE_USAGE("port=<IP port number>");
#define SERVICE_TYPE_SINK "_pulse-sink._tcp"
#define SERVICE_TYPE_SOURCE "_pulse-source._tcp"
@ -67,7 +68,6 @@ PA_MODULE_USAGE("port=<IP port number>");
#define SERVICE_SUBTYPE_SOURCE_NON_MONITOR "_non-monitor._sub."SERVICE_TYPE_SOURCE
static const char* const valid_modargs[] = {
"port",
NULL
};
@ -88,6 +88,7 @@ struct service {
struct userdata {
pa_core *core;
pa_module *module;
AvahiPoll *avahi_poll;
AvahiClient *client;
@ -96,9 +97,9 @@ struct userdata {
AvahiEntryGroup *main_entry_group;
uint16_t port;
pa_hook_slot *sink_new_slot, *source_new_slot, *sink_unlink_slot, *source_unlink_slot, *sink_changed_slot, *source_changed_slot;
pa_native_protocol *native;
};
static void get_service_data(struct service *s, pa_sample_spec *ret_ss, pa_channel_map *ret_map, const char **ret_name, const char **ret_description, enum service_subtype *ret_subtype) {
@ -184,6 +185,30 @@ static void service_entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupStat
static void service_free(struct service *s);
static uint16_t compute_port(struct userdata *u) {
pa_strlist *i;
pa_assert(u);
for (i = pa_native_protocol_servers(u->native); i; i = pa_strlist_next(i)) {
pa_parsed_address a;
if (pa_parse_address(pa_strlist_data(i), &a) >= 0 &&
(a.type == PA_PARSED_ADDRESS_TCP4 ||
a.type == PA_PARSED_ADDRESS_TCP6 ||
a.type == PA_PARSED_ADDRESS_TCP_AUTO) &&
a.port > 0) {
pa_xfree(a.path_or_host);
return a.port;
}
pa_xfree(a.path_or_host);
}
return PA_NATIVE_DEFAULT_PORT;
}
static int publish_service(struct service *s) {
int r = -1;
AvahiStringList *txt = NULL;
@ -230,7 +255,7 @@ static int publish_service(struct service *s) {
pa_sink_isinstance(s->device) ? SERVICE_TYPE_SINK : SERVICE_TYPE_SOURCE,
NULL,
NULL,
s->userdata->port,
compute_port(s->userdata),
txt) < 0) {
pa_log("avahi_entry_group_add_service_strlst(): %s", avahi_strerror(avahi_client_errno(s->userdata->client)));
@ -430,7 +455,7 @@ static int publish_main_service(struct userdata *u) {
SERVICE_TYPE_SERVER,
NULL,
NULL,
u->port,
compute_port(u),
txt) < 0) {
pa_log("avahi_entry_group_add_service_strlst() failed: %s", avahi_strerror(avahi_client_errno(u->client)));
@ -552,7 +577,6 @@ static void client_callback(AvahiClient *c, AvahiClientState state, void *userda
int pa__init(pa_module*m) {
struct userdata *u;
uint32_t port = PA_NATIVE_DEFAULT_PORT;
pa_modargs *ma = NULL;
char hn[256], un[256];
int error;
@ -562,15 +586,10 @@ int pa__init(pa_module*m) {
goto fail;
}
if (pa_modargs_get_value_u32(ma, "port", &port) < 0 || port <= 0 || port > 0xFFFF) {
pa_log("Invalid port specified.");
goto fail;
}
m->userdata = u = pa_xnew(struct userdata, 1);
u->core = m->core;
u->module = m;
u->port = (uint16_t) port;
u->native = pa_native_protocol_get(u->core);
u->avahi_poll = pa_avahi_poll_new(m->core->mainloop);