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[osx] Added missing timer/clock functions, support Bonjour mDNS on OSX 

Added configure checks needed to detect missing functions on OSX
Added compat clock functions using clock_get_time on OSX
Added compat timer functions using clock_gettime and setitimer on OSX
Added byteswap functions on OSX
This commit is contained in:
Scott Shambarger 2017-01-14 00:56:43 -05:00
parent b54d94fda6
commit bb68d59a6e
8 changed files with 1111 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
configure.ac
View File

@ -55,13 +55,23 @@ AC_CHECK_FUNCS_ONCE([posix_fadvise euidaccess pipe2])
AC_CHECK_FUNCS([strptime strtok_r], [],
[AC_MSG_ERROR([[Missing function required to build forked-daapd]])])
dnl check for clock_gettime
AC_SEARCH_LIBS([clock_gettime], [rt], [],
[AC_MSG_ERROR([[Missing clock_gettime]])])
dnl check for clock_gettime or replace it
AC_SEARCH_LIBS([clock_gettime], [rt],
[AC_DEFINE([HAVE_CLOCK_GETTIME], 1,
[Define to 1 if have clock_gettime function])],
[AC_CHECK_HEADER([mach/mach_time.h],
[AC_DEFINE([HAVE_MACH_CLOCK], 1,
[Define to 1 if mach kernel clock replacement available])],
[AC_MSG_ERROR([[Missing clock_gettime and any replacement]])])])
dnl check for timer_settime
AC_SEARCH_LIBS([timer_settime], [rt], [],
[AC_MSG_ERROR([[Missing timer_settime]])])
dnl check for timer_settime or replace it
AC_SEARCH_LIBS([timer_settime], [rt],
[AC_DEFINE([HAVE_TIMER_SETTIME], 1,
[Define to 1 if have timer_settime function])],
[AC_CHECK_HEADER([mach/mach_time.h],
[AC_DEFINE([HAVE_MACH_TIMER], 1,
[Define to 1 if mach kernel clock replacement available])],
[AC_MSG_ERROR([[Missing timer_settime and any replacement]])])])
AC_SEARCH_LIBS([pthread_exit], [pthread], [],
[AC_MSG_ERROR([[pthreads library is required]])])
@ -91,20 +101,17 @@ AC_SUBST([FORKED_CPPFLAGS])
AM_ICONV
dnl All FORK_ macros defined in m4/fork_checks.m4
FORK_FUNC_REQUIRE([COMMON], [GNU libunistring], [LIBUNISTRING], [unistring],
[u8_strconv_from_locale], [uniconv.h], [],
[dnl Retry test with iconv library
FORK_VARS_APPEND([COMMON], [LIBICONV], [INCICONV])
FORK_FUNC_REQUIRE([COMMON], [GNU libunistring], [LIBUNISTRING],
[unistring], [u8_strconv_from_locale], [uniconv.h])])
[u8_strconv_from_locale], [uniconv.h], [],
[dnl Retry test with iconv library
FORK_VARS_APPEND([COMMON], [LIBICONV], [INCICONV])
FORK_FUNC_REQUIRE([COMMON], [GNU libunistring], [LIBUNISTRING],
[unistring], [u8_strconv_from_locale], [uniconv.h])])
FORK_MODULES_CHECK([FORKED], [ZLIB], [zlib], [deflate], [zlib.h])
FORK_MODULES_CHECK([FORKED], [CONFUSE], [libconfuse], [cfg_init], [confuse.h])
FORK_MODULES_CHECK([FORKED], [MINIXML], [mxml], [mxmlNewElement], [mxml.h],
[AC_CHECK_FUNCS([mxmlGetOpaque])])
FORK_MODULES_CHECK([FORKED], [AVAHI], [avahi-client >= 0.6.24],
[avahi_client_new], [avahi-client/client.h])
dnl SQLite3 requires extra checks
FORK_MODULES_CHECK([COMMON], [SQLITE3], [sqlite3 >= 3.5.0],
[sqlite3_initialize], [sqlite3.h],
@ -187,7 +194,8 @@ AS_IF([[test "$have_signal" = "no"]],
AC_CHECK_HEADERS_ONCE([endian.h sys/endian.h])
AC_CHECK_DECL([htobe16], [],
[AC_MSG_FAILURE([[Missing functions to swap byte order]])],
[AC_CHECK_HEADERS([libkern/OSByteOrder.h], [],
[AC_MSG_ERROR([[Missing functions to swap byte order]])])],
[AC_INCLUDES_DEFAULT[
#ifdef HAVE_ENDIAN_H
# include <endian.h>
@ -227,6 +235,15 @@ FORK_ARG_WITH_CHECK([FORKED], [json-c support], [json], [JSON_C],
[with_json=no]]
)])
dnl Build with Avahi (or Bonjour if not)
FORK_ARG_WITH_CHECK([FORKED], [Avahi mDNS], [avahi], [AVAHI],
[avahi-client >= 0.6.24], [avahi_client_new], [avahi-client/client.h])
AS_IF([[test "x$with_avahi" = "xno"]],
[FORK_FUNC_REQUIRE([FORKED], [Bonjour DNS_SD], [DNSSD], [dns_sd],
[DNSServiceGetAddrInfo], [dns_sd.h], [],
[AC_MSG_ERROR([[Avahi client or Bonjour DNS_SD required, please install one.]])])])
AM_CONDITIONAL([COND_AVAHI], [[test "x$with_avahi" = "xyes"]])
dnl iTunes playlists with libplist
FORK_ARG_ENABLE([iTunes Music Library XML support], [itunes], [ITUNES],
[FORK_MODULES_CHECK([FORKED], [LIBPLIST], [libplist >= 0.16],

8
src/Makefile.am
View File

@ -33,6 +33,12 @@ if COND_PULSEAUDIO
PULSEAUDIO_SRC=outputs/pulse.c
endif
if COND_AVAHI
MDNS_SRC=mdns_avahi.c
else
MDNS_SRC=mdns_dnssd.c
endif
GPERF_FILES = \
daap_query.gperf \
rsp_query.gperf \
@ -82,7 +88,7 @@ forked_daapd_SOURCES = main.c \
filescanner.c filescanner.h \
filescanner_ffmpeg.c filescanner_playlist.c \
filescanner_smartpl.c $(ITUNES_SRC) \
mdns_avahi.c mdns.h \
$(MDNS_SRC) mdns.h \
remote_pairing.c remote_pairing.h \
avio_evbuffer.c avio_evbuffer.h \
httpd.c httpd.h \

8
src/mdns_avahi.c
View File

@ -636,11 +636,6 @@ entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, AVAHI_GCC_U
}
}
#ifndef HOST_NAME_MAX
/* some systems want programs to query this, just define a reasonable limit */
#define HOST_NAME_MAX 64
#endif
static int
create_group_entry(struct mdns_group_entry *ge, int commit)
{
@ -683,8 +678,9 @@ create_group_entry(struct mdns_group_entry *ge, int commit)
DPRINTF(E_LOG, L_MDNS, "Could not add CNAME %s, gethostname failed\n", ge->name);
return -1;
}
// Note, gethostname does not guarantee 0-termination
hostname[HOST_NAME_MAX] = 0;
ret = snprintf(rdata, sizeof(rdata), ".%s.local", hostname);
if (!(ret > 0 && ret < sizeof(rdata)))
{

843
src/mdns_dnssd.c Normal file
View File

@ -0,0 +1,843 @@
/*
* Avahi mDNS backend, with libevent polling
*
* Copyright (c) Scott Shambarger <devel@shambarger.net>
* Copyright (C) 2009-2011 Julien BLACHE <jb@jblache.org>
* Copyright (C) 2005 Sebastian Dr<EFBFBD>ge <slomo@ubuntu.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* NOTE: dns_sd.h indicates that MoreComing is unified on shared
* connecdtions; this means that the triggers to free structs when
* MoreComing is not set may not be called if another operation has
* pending data... we probably need a way to prevent leaks (how do you
* know if it's safe to free a context, after timeout with cancel??)
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "mdns.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <unistd.h>
#include <event2/event.h>
#include <dns_sd.h>
// Hack for FreeBSD, don't want to bother with sysconf()
#ifndef HOST_NAME_MAX
# include <limits.h>
# define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
#endif
#include "logger.h"
/* Main event base, from main.c */
extern struct event_base *evbase_main;
static DNSServiceRef mdns_sdref_main;
static struct event *mdns_ev_main;
struct mdns_service {
DNSServiceRef sdref;
char *name;
char *regtype;
TXTRecordRef txtRecord;
struct event *ev;
struct mdns_service *next;
};
static struct mdns_service *mdns_services = NULL;
struct mdns_record {
DNSRecordRef recRef;
uint16_t rrtype;
char *name;
struct mdns_record *next;
};
static struct mdns_record *mdns_records = NULL;
/* Avahi client callbacks & helpers */
struct mdns_browser
{
DNSServiceRef sdref;
char *regtype;
mdns_browse_cb cb;
DNSServiceProtocol protocol;
struct event *ev;
struct mdns_browser *next;
};
static struct mdns_browser *mdns_browsers = NULL;
struct mdns_resolver
{
DNSServiceRef sdref;
char *name;
char *regtype;
char *domain;
struct mdns_browser *mb;
struct event *ev;
struct mdns_resolver *next;
};
struct mdns_addr_lookup {
DNSServiceRef sdref;
char *name;
char *regtype;
char *domain;
u_int16_t port;
struct keyval txt_kv;
struct mdns_browser *mb;
struct event *ev;
};
#define IPV4LL_NETWORK 0xA9FE0000
#define IPV4LL_NETMASK 0xFFFF0000
#define IPV6LL_NETWORK 0xFE80
#define IPV6LL_NETMASK 0xFFC0
static int
is_v4ll(struct in_addr *addr)
{
return ((ntohl(addr->s_addr) & IPV4LL_NETMASK) == IPV4LL_NETWORK);
}
static int
is_v6ll(struct in6_addr *addr)
{
return ((((addr->s6_addr[0] << 8) | addr->s6_addr[1]) & IPV6LL_NETMASK)
== IPV6LL_NETWORK);
}
/* mDNS interface - to be called only from the main thread */
static int
mdns_service_free(struct mdns_service *s)
{
if(! s)
return -1;
/* free event, then sdref, then everything else */
event_free(s->ev);
DNSServiceRefDeallocate(s->sdref);
TXTRecordDeallocate(&(s->txtRecord));
free(s->name);
free(s->regtype);
free(s);
return -1;
}
static int
mdns_browser_free(struct mdns_browser *mb)
{
if(! mb)
return -1;
/* free event, then sdref, then everything else */
event_free(mb->ev);
DNSServiceRefDeallocate(mb->sdref);
free(mb->regtype);
free(mb);
return -1;
}
static int
mdns_record_free(struct mdns_record *r)
{
if (! r)
return -1;
free(r->name);
free(r);
return -1;
}
static int
mdns_main_free(void)
{
struct mdns_service *s;
struct mdns_browser *mb;
struct mdns_record *r;
for(s = mdns_services; mdns_services; s = mdns_services)
{
mdns_services = s->next;
mdns_service_free(s);
}
for (mb = mdns_browsers; mdns_browsers; mb = mdns_browsers)
{
mdns_browsers = mb->next;
mdns_browser_free(mb);
}
for (r = mdns_records; mdns_records; r = mdns_records)
{
mdns_records = r->next;
mdns_record_free(r);
}
event_free(mdns_ev_main);
mdns_ev_main = NULL;
DNSServiceRefDeallocate(mdns_sdref_main);
mdns_sdref_main = NULL;
return -1;
}
void
mdns_deinit(void)
{
mdns_main_free();
}
static void
mdns_event_cb(evutil_socket_t fd, short flags, void *data) {
DNSServiceProcessResult(*(DNSServiceRef *)data);
}
static int
mdns_event_add(DNSServiceRef *psdref, struct event **pev)
{
int fd;
fd = DNSServiceRefSockFD(*psdref);
*pev = event_new(evbase_main, fd, EV_PERSIST | EV_READ, mdns_event_cb,
psdref);
if (!*pev)
{
DPRINTF(E_LOG, L_MDNS, "Could not make new event in mdns\n");
return -1;
}
return event_add(*pev, NULL);
}
int
mdns_init(void)
{
DNSServiceErrorType err;
DPRINTF(E_DBG, L_MDNS, "Initializing DNS_SD mDNS\n");
mdns_services = NULL;
mdns_browsers = NULL;
mdns_records = NULL;
mdns_sdref_main = NULL;
mdns_ev_main = NULL;
err = DNSServiceCreateConnection(&mdns_sdref_main);
if (err != kDNSServiceErr_NoError)
{
DPRINTF(E_LOG, L_MDNS, "Could not create mDNS connection\n");
return -1;
}
if (mdns_event_add(&mdns_sdref_main, &mdns_ev_main) < 0)
return mdns_main_free();
return 0;
}
static void
mdns_register_callback(DNSServiceRef sdRef, DNSServiceFlags flags,
DNSServiceErrorType errorCode, const char *name,
const char *regtype, const char *domain,
void *context) {
switch (errorCode) {
case kDNSServiceErr_NoError:
DPRINTF(E_DBG, L_MDNS, "Successfully added mDNS services\n");
break;
case kDNSServiceErr_NameConflict:
DPRINTF(E_DBG, L_MDNS, "Name collision - automatically assigning new name\n");
break;
case kDNSServiceErr_NoMemory:
DPRINTF(E_DBG, L_MDNS, "Out of memory registering service %s\n", name);
break;
default:
DPRINTF(E_DBG, L_MDNS, "Unspecified error registering service %s, error %d\n",
name, errorCode);
}
}
int
mdns_register(char *name, char *regtype, int port, char **txt)
{
struct mdns_service *s;
DNSServiceErrorType err;
int i;
char *eq;
DPRINTF(E_DBG, L_MDNS, "Adding mDNS service %s/%s\n", name, regtype);
s = calloc(1, sizeof(*s));
if (!s)
{
DPRINTF(E_LOG, L_MDNS, "Out of memory registering service.\n");
return -1;
}
s->name = strdup(name);
if (!(s->name))
{
DPRINTF(E_LOG, L_MDNS, "Out of memory registering service.\n");
return mdns_service_free(s);
}
s->regtype = strdup(regtype);
if (!(s->regtype))
{
DPRINTF(E_LOG, L_MDNS, "Out of memory registering service.\n");
return mdns_service_free(s);
}
TXTRecordCreate(&(s->txtRecord), 0, NULL);
for (i = 0; txt && txt[i]; i++)
{
if ((eq = strchr(txt[i], '=')))
{
*eq = '\0';
eq++;
err = TXTRecordSetValue(&(s->txtRecord), txt[i], strlen(eq) * sizeof(char), eq);
*(--eq) = '=';
if (err != kDNSServiceErr_NoError)
{
DPRINTF(E_LOG, L_MDNS, "Could not set TXT record value\n");
return mdns_service_free(s);
}
}
}
s->sdref = mdns_sdref_main;
err = DNSServiceRegister(&(s->sdref), kDNSServiceFlagsShareConnection, 0,
s->name, s->regtype, NULL, NULL, htons(port),
TXTRecordGetLength(&(s->txtRecord)),
TXTRecordGetBytesPtr(&(s->txtRecord)),
mdns_register_callback, NULL);
if (err != kDNSServiceErr_NoError)
{
DPRINTF(E_LOG, L_MDNS, "Error registering service %s\n", name);
s->sdref = NULL;
return mdns_service_free(s);
}
if (mdns_event_add(&s->sdref, &s->ev) < 0)
return mdns_service_free(s);
s->next = mdns_services;
mdns_services = s;
return 0;
}
static void
mdns_record_callback(DNSServiceRef sdRef, DNSRecordRef RecordRef,
DNSServiceFlags flags, DNSServiceErrorType errorCode,
void *context)
{
struct mdns_record *r;
r = context;
switch (errorCode) {
case kDNSServiceErr_NoError:
DPRINTF(E_DBG, L_MDNS, "Successfully added mDNS record %s\n", r->name);
break;
case kDNSServiceErr_NameConflict:
DPRINTF(E_DBG, L_MDNS, "Record ame collision - automatically assigning new name\n");
break;
case kDNSServiceErr_NoMemory:
DPRINTF(E_DBG, L_MDNS, "Out of memory registering record %s\n", r->name);
break;
default:
DPRINTF(E_DBG, L_MDNS, "Unspecified error registering record %s, error %d\n",
r->name, errorCode);
}
}
static int
mdns_register_record(uint16_t rrtype, const char *name, uint16_t rdlen,
const void *rdata)
{
struct mdns_record *r;
DNSServiceErrorType err;
DPRINTF(E_DBG, L_MDNS, "Adding mDNS record %s/%u\n", name, rrtype);
r = calloc(1, sizeof(*r));
if (!r)
{
DPRINTF(E_LOG, L_MDNS, "Out of memory adding record.\n");
return -1;
}
r->name = strdup(name);
if (!(r->name))
{
DPRINTF(E_LOG, L_MDNS, "Out of memory adding record.\n");
return mdns_record_free(r);
}
r->rrtype = rrtype;
err = DNSServiceRegisterRecord(mdns_sdref_main, &r->recRef,
kDNSServiceFlagsShared, 0, r->name,
r->rrtype, kDNSServiceClass_IN, rdlen, rdata,
0, mdns_record_callback, r);
if (err != kDNSServiceErr_NoError)
{
DPRINTF(E_LOG, L_MDNS, "Error registering record %s, error %d\n", name,
err);
return mdns_record_free(r);
}
r->next = mdns_records;
mdns_records = r;
return 0;
}
int
mdns_cname(char *name)
{
char hostname[HOST_NAME_MAX + 1];
// Includes room for "..local" and 0-terminator
char rdata[HOST_NAME_MAX + 8];
int count;
int i;
int ret;
ret = gethostname(hostname, HOST_NAME_MAX);
if (ret < 0)
{
DPRINTF(E_LOG, L_MDNS, "Could not add CNAME %s, gethostname failed\n",
name);
return -1;
}
// Note, gethostname does not guarantee 0-termination
hostname[HOST_NAME_MAX] = 0;
ret = snprintf(rdata, sizeof(rdata), ".%s.local", hostname);
if (!(ret > 0 && ret < sizeof(rdata)))
{
DPRINTF(E_LOG, L_MDNS, "Could not add CNAME %s, hostname is invalid\n",
name);
return -1;
}
// Convert to dns string: .forked-daapd.local -> \12forked-daapd\6local
count = 0;
for (i = ret - 1; i >= 0; i--)
{
if (rdata[i] == '.')
{
rdata[i] = count;
count = 0;
}
else
count++;
}
return mdns_register_record(kDNSServiceType_CNAME, name, (uint16_t)ret,
rdata);
}
static int
mdns_addr_lookup_free(struct mdns_addr_lookup *lu)
{
if (! lu)
return -1;
/* free event, then sdref, then everything else */
event_free(lu->ev);
DNSServiceRefDeallocate(lu->sdref);
keyval_clear(&lu->txt_kv);
free(lu->domain);
free(lu->regtype);
free(lu->name);
free(lu);
return -1;
}
static void
mdns_browse_call_cb(struct mdns_addr_lookup *lu, const char *hostname,
const struct sockaddr *address)
{
char addr_str[INET6_ADDRSTRLEN];
if (address->sa_family == AF_INET)
{
struct sockaddr_in *addr = (struct sockaddr_in *)address;
if (!inet_ntop(AF_INET, &addr->sin_addr, addr_str, sizeof(addr_str)))
{
DPRINTF(E_LOG, L_MDNS, "Could not print IPv4 address: %s\n",
strerror(errno));
return;
}
if (!(lu->mb->protocol & kDNSServiceProtocol_IPv4))
{
DPRINTF(E_DBG, L_MDNS, "Discarding IPv4, not interested (service %s)\n",
lu->name);
return;
}
else if (is_v4ll(&addr->sin_addr))
{
DPRINTF(E_WARN, L_MDNS, "Ignoring announcement from %s, address %s is link-local\n",
hostname, addr_str);
return;
}
}
else if (address->sa_family == AF_INET6)
{
struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)address;
if (!inet_ntop(AF_INET6, &addr6->sin6_addr, addr_str, sizeof(addr_str)))
{
DPRINTF(E_LOG, L_MDNS, "Could not print IPv6 address: %s\n",
strerror(errno));
return;
}
if (!(lu->mb->protocol & kDNSServiceProtocol_IPv6))
{
DPRINTF(E_DBG, L_MDNS, "Discarding IPv6, not interested (service %s)\n",
lu->name);
return;
}
else if (is_v6ll(&addr6->sin6_addr))
{
DPRINTF(E_WARN, L_MDNS, "Ignoring announcement from %s, address %s is link-local\n",
hostname, addr_str);
return;
}
}
DPRINTF(E_DBG, L_MDNS, "Service %s, hostname %s resolved to %s\n",
lu->name, hostname, addr_str);
/* Execute callback (mb->cb) with all the data */
lu->mb->cb(lu->name, lu->mb->regtype, lu->domain, hostname,
address->sa_family, addr_str, lu->port, &lu->txt_kv);
}
static void
mdns_lookup_callback(DNSServiceRef sdRef, DNSServiceFlags flags,
uint32_t interfaceIndex, DNSServiceErrorType errorCode,
const char *hostname, const struct sockaddr *address,
uint32_t ttl, void *context)
{
struct mdns_addr_lookup *lu;
if (errorCode != kDNSServiceErr_NoError )
{
DPRINTF(E_LOG, L_MDNS, "Error resolving service address, error %d\n",
errorCode);
return;
}
lu = context;
if (flags & kDNSServiceFlagsAdd)
mdns_browse_call_cb(lu, hostname, address);
/* If we are done with address lookups for this resolve,
terminate the address lookup */
if (!(flags & kDNSServiceFlagsMoreComing))
mdns_addr_lookup_free(lu);
}
static int
mdns_addr_lookup_start(struct mdns_resolver *rs, uint32_t interfaceIndex,
const char *hosttarget, uint16_t port, uint16_t txtLen,
const unsigned char *txtRecord)
{
struct mdns_addr_lookup *lu;
DNSServiceErrorType err;
char key[256];
int i;
uint8_t valueLen;
const char *value;
int ret;
lu = calloc(1, sizeof(*lu));
if (!lu)
{
DPRINTF(E_LOG, L_MDNS, "Out of memory creating address lookup.\n");
return -1;
}
lu->name = strdup(rs->name);
if (!lu->name)
{
DPRINTF(E_LOG, L_MDNS, "Out of memory creating address lookup.\n");
return mdns_addr_lookup_free(lu);
}
lu->regtype = strdup(rs->regtype);
if (!lu->regtype)
{
DPRINTF(E_LOG, L_MDNS, "Out of memory creating address lookup.\n");
return mdns_addr_lookup_free(lu);
}
lu->domain = strdup(rs->domain);
if (!lu->domain)
{
DPRINTF(E_LOG, L_MDNS, "Out of memory creating address lookup.\n");
return mdns_addr_lookup_free(lu);
}
lu->port = port;
lu->mb = rs->mb;
for (i=0; TXTRecordGetItemAtIndex(txtLen, txtRecord, i, sizeof(key),
key, &valueLen, (const void **)&value)
!= kDNSServiceErr_Invalid; i++)
{
ret = keyval_add_size(&lu->txt_kv, key, value, valueLen);
if (ret < 0)
{
DPRINTF(E_LOG, L_MDNS, "Could not build TXT record keyval\n");
return mdns_addr_lookup_free(lu);
}
}
lu->sdref = mdns_sdref_main;
err = DNSServiceGetAddrInfo(&lu->sdref, kDNSServiceFlagsShareConnection,
interfaceIndex, rs->mb->protocol, hosttarget,
mdns_lookup_callback, lu);
if (err != kDNSServiceErr_NoError)
{
DPRINTF(E_LOG, L_MDNS, "Failed to create service resolver.\n");
lu->sdref = NULL;
return mdns_addr_lookup_free(lu);
}
if (mdns_event_add(&lu->sdref, &lu->ev) < 0)
return mdns_addr_lookup_free(lu);
return 0;
}
static int
mdns_resolver_free(struct mdns_resolver *rs) {
if (! rs)
return -1;
event_free(rs->ev);
DNSServiceRefDeallocate(rs->sdref);
free(rs->name);
free(rs->regtype);
free(rs->domain);
free(rs);
return -1;
}
static void
mdns_resolve_callback(DNSServiceRef sdRef, DNSServiceFlags flags,
uint32_t interfaceIndex, DNSServiceErrorType errorCode,
const char *fullname, const char *hosttarget,
uint16_t port, uint16_t txtLen,
const unsigned char *txtRecord, void *context )
{
struct mdns_resolver *rs;
if (errorCode != kDNSServiceErr_NoError )
{
DPRINTF(E_LOG, L_MDNS, "Error resolving mdns service, error %d\n",
errorCode);
return;
}
rs = context;
mdns_addr_lookup_start(rs, interfaceIndex, hosttarget, port,
txtLen, txtRecord);
/* If we are done resolving this service, terminate the resolve
and free the resolver resources */
if (!(flags & kDNSServiceFlagsMoreComing))
mdns_resolver_free(rs);
}
static int
mdns_resolve_start(struct mdns_browser *mb, uint32_t interfaceIndex,
const char *serviceName, const char *regtype,
const char *replyDomain)
{
DNSServiceErrorType err;
struct mdns_resolver *rs;
rs = calloc(1, sizeof(*rs));
if (!rs)
{
DPRINTF(E_LOG, L_MDNS, "Out of memory creating service resolver.\n");
return -1;
}
rs->name = strdup(serviceName);
if (!rs->name)
{
DPRINTF(E_LOG, L_MDNS, "Out of memory creating service resolver.\n");
return mdns_resolver_free(rs);
}
rs->regtype = strdup(regtype);
if (!rs->regtype)
{
DPRINTF(E_LOG, L_MDNS, "Out of memory creating service resolver.\n");
return mdns_resolver_free(rs);
}
rs->domain = strdup(replyDomain);
if (!rs->name)
{
DPRINTF(E_LOG, L_MDNS, "Out of memory creating service resolver.\n");
return mdns_resolver_free(rs);
}
rs->mb = mb;
rs->sdref = mdns_sdref_main;
err = DNSServiceResolve(&(rs->sdref), kDNSServiceFlagsShareConnection,
interfaceIndex, serviceName, regtype, replyDomain,
mdns_resolve_callback, rs);
if (err != kDNSServiceErr_NoError)
{
DPRINTF(E_LOG, L_MDNS, "Failed to create service resolver.\n");
rs->sdref = NULL;
return mdns_resolver_free(rs);
}
if (mdns_event_add(&rs->sdref, &rs->ev) < 0)
return mdns_resolver_free(rs);
return 0;
}
static void
mdns_browse_callback(DNSServiceRef sdRef, DNSServiceFlags flags,
uint32_t interfaceIndex, DNSServiceErrorType errorCode,
const char *serviceName, const char *regtype,
const char *replyDomain, void *context )
{
struct mdns_browser *mb;
if (errorCode != kDNSServiceErr_NoError)
{
DPRINTF(E_LOG, L_MDNS, "DNS-SD browsing error %d\n", errorCode);
return;
}
mb = context;
if (flags & kDNSServiceFlagsAdd)
{
DPRINTF(E_DBG, L_MDNS,
"DNS-SD Browser: NEW service '%s' type '%s' interface %d\n",
serviceName, regtype, interfaceIndex);
mdns_resolve_start(mb, interfaceIndex, serviceName, regtype,
replyDomain);
}
else
{
DPRINTF(E_DBG, L_MDNS,
"Avahi Browser: REMOVE service '%s' type '%s' interface %d\n",
serviceName, regtype, interfaceIndex);
mb->cb(serviceName, regtype, replyDomain, NULL, 0, NULL, -1, NULL);
}
}
int
mdns_browse(char *regtype, int family, mdns_browse_cb cb)
{
struct mdns_browser *mb;
DNSServiceErrorType err;
DPRINTF(E_DBG, L_MDNS, "Adding service browser for type %s\n", regtype);
mb = calloc(1, sizeof(*mb));
if (!mb)
{
DPRINTF(E_LOG, L_MDNS, "Out of memory creating service browser.\n");
return -1;
}
mb->cb = cb;
/* flags are ignored in DNS-SD implementation */
switch(family) {
case AF_UNSPEC:
mb->protocol = kDNSServiceProtocol_IPv4 | kDNSServiceProtocol_IPv6;
break;
case AF_INET:
mb->protocol = kDNSServiceProtocol_IPv4;
break;
case AF_INET6:
mb->protocol = kDNSServiceProtocol_IPv6;
break;
default:
DPRINTF(E_LOG, L_MDNS, "Unrecognized protocol family %d.\n", family);
return mdns_browser_free(mb);
}
mb->regtype = strdup(regtype);
if (!mb->regtype)
{
DPRINTF(E_LOG, L_MDNS, "Out of memory creating service browser.\n");
return mdns_browser_free(mb);
}
mb->sdref = mdns_sdref_main;
err = DNSServiceBrowse(&(mb->sdref), kDNSServiceFlagsShareConnection, 0,
regtype, NULL, mdns_browse_callback, mb);
if (err != kDNSServiceErr_NoError)
{
DPRINTF(E_LOG, L_MDNS, "Failed to create service browser.\n");
mb->sdref = NULL;
return mdns_browser_free(mb);
}
if (mdns_event_add(&mb->sdref, &mb->ev) < 0)
return mdns_browser_free(mb);
mb->next = mdns_browsers;
mdns_browsers = mb;
return 0;
}

177
src/misc.c
View File

@ -920,6 +920,183 @@ timespec_cmp(struct timespec time1, struct timespec time2)
return 0;
}
#if defined(HAVE_MACH_CLOCK) || defined(HAVE_MACH_TIMER)
#include <mach/mach_time.h> /* mach_absolute_time */
#include <mach/mach.h> /* host_get_clock_service */
#include <mach/clock.h> /* clock_get_time */
/* mach monotonic clock port */
extern mach_port_t clock_port;
#ifndef HAVE_CLOCK_GETTIME
int
clock_gettime(clockid_t clock_id, struct timespec *tp) {
static int clock_init = 0;
static clock_serv_t clock;
mach_timespec_t mts;
int ret;
if (! clock_init) {
clock_init = 1;
if (host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &clock))
abort(); /* unlikely */
}
if(! tp)
return -1;
switch (clock_id) {
case CLOCK_REALTIME:
/* query mach for calendar time */
ret = clock_get_time(clock, &mts);
if (! ret) {
tp->tv_sec = mts.tv_sec;
tp->tv_nsec = mts.tv_nsec;
}
break;
case CLOCK_MONOTONIC:
/* query mach for monotinic time */
ret = clock_get_time(clock_port, &mts);
if (! ret) {
tp->tv_sec = mts.tv_sec;
tp->tv_nsec = mts.tv_nsec;
}
break;
default:
ret = -1;
break;
}
return ret;
}
int
clock_getres(clockid_t clock_id, struct timespec *res) {
if (! res)
return -1;
/* hardcode ms resolution */
res->tv_sec = 0;
res->tv_nsec = 1000;
return 0;
}
#endif /* HAVE_CLOCK_GETTIME */
#ifndef HAVE_TIMER_SETTIME
#include <sys/time.h> /* ITIMER_REAL */
static uint64_t timer_interval;
static struct timespec timer_expire;
int
timer_create(clockid_t clock_id, void *sevp, timer_t *timer_id) {
if (clock_id != CLOCK_MONOTONIC)
return -1;
if (sevp)
return -1;
/* setitimer only supports one timer */
*timer_id = 0;
timer_expire.tv_sec = 0;
timer_expire.tv_nsec = 0;
return 0;
}
int
timer_delete(timer_t timer_id) {
struct itimerval timerval;
if (timer_id != 0)
return -1;
memset(&timerval, 0, sizeof(struct itimerval));
timer_expire.tv_sec = 0;
timer_expire.tv_nsec = 0;
return setitimer(ITIMER_REAL, &timerval, NULL);
}
int
timer_settime(timer_t timer_id, int flags, const struct itimerspec *tp,
struct itimerspec *old) {
struct itimerval tv;
if (timer_id != 0 || ! tp || old)
return -1;
if (tp->it_value.tv_sec || tp->it_value.tv_nsec) {
/* calc expire */
if (clock_gettime(CLOCK_MONOTONIC, &timer_expire))
return -1;
timer_expire.tv_sec += tp->it_value.tv_sec;
timer_expire.tv_nsec += tp->it_value.tv_nsec;
if (timer_expire.tv_nsec >= 1e9) {
timer_expire.tv_sec++;
timer_expire.tv_nsec -= 1e9;
}
/* record the interval */
timer_interval = tp->it_interval.tv_sec * 1e9;
timer_interval += tp->it_interval.tv_nsec;
}
else {
timer_expire.tv_sec = 0;
timer_expire.tv_nsec = 0;
}
TIMESPEC_TO_TIMEVAL(&(tv.it_value), &(tp->it_value));
TIMESPEC_TO_TIMEVAL(&(tv.it_interval), &(tp->it_interval));
return setitimer(ITIMER_REAL, &tv, NULL);
}
int
timer_getoverrun(timer_t timer_id) {
struct timespec now;
int64_t diff;
if (timer_id != 0)
return -1;
if (timer_expire.tv_sec == 0 && timer_expire.tv_nsec == 0)
return 0;
if (timer_interval == 0)
return 0;
/* calc how much time has elapsed since expiration */
if (clock_gettime(CLOCK_MONOTONIC, &now))
return -1;
diff = (now.tv_sec - timer_expire.tv_sec) * 1e9;
diff += now.tv_nsec - now.tv_nsec;
if (diff < 0)
return 0;
return (int)(diff / timer_interval);
}
#endif /* HAVE_TIMER_SETTIME */
#endif /* HAVE_MACH_CLOCK */
void
fork_mutex_init(pthread_mutex_t *mutex)
{

41
src/misc.h
View File

@ -87,6 +87,47 @@ b64_encode(const uint8_t *in, size_t len);
uint64_t
murmur_hash64(const void *key, int len, uint32_t seed);
#ifndef HAVE_CLOCK_GETTIME
#ifndef CLOCK_REALTIME
# define CLOCK_REALTIME 0
#endif
#ifndef CLOCK_MONOTONIC
# define CLOCK_MONOTONIC 1
#endif
typedef int clockid_t;
int
clock_gettime(clockid_t clock_id, struct timespec *tp);
int
clock_getres(clockid_t clock_id, struct timespec *res);
#endif
#ifndef HAVE_TIMER_SETTIME
struct itimerspec {
struct timespec it_interval;
struct timespec it_value;
};
typedef uint64_t timer_t;
int
timer_create(clockid_t clock_id, void *sevp, timer_t *timer_id);
int
timer_delete(timer_t timer_id);
int
timer_settime(timer_t timer_id, int flags, const struct itimerspec *tp,
struct itimerspec *old);
int
timer_getoverrun(timer_t timer_id);
#endif
/* Timer function for platforms without hi-res timers */
int
clock_gettime_with_res(clockid_t clock_id, struct timespec *tp, struct timespec *res);

4
src/outputs/cast.c
View File

@ -39,6 +39,10 @@
# include <endian.h>
#elif defined(HAVE_SYS_ENDIAN_H)
# include <sys/endian.h>
#elif defined(HAVE_LIBKERN_OSBYTEORDER_H)
#include <libkern/OSByteOrder.h>
#define htobe32(x) OSSwapHostToBigInt32(x)
#define be32toh(x) OSSwapBigToHostInt32(x)
#endif
#include <gnutls/gnutls.h>
#include <event2/event.h>

5
src/outputs/raop.c
View File

@ -51,6 +51,11 @@
# include <endian.h>
#elif defined(HAVE_SYS_ENDIAN_H)
# include <sys/endian.h>
#elif defined(HAVE_LIBKERN_OSBYTEORDER_H)
#include <libkern/OSByteOrder.h>
#define htobe16(x) OSSwapHostToBigInt16(x)
#define be16toh(x) OSSwapBigToHostInt16(x)
#define htobe32(x) OSSwapHostToBigInt32(x)
#endif
#include <arpa/inet.h>