| 1 | /** |
| 2 | * Copyright (C) 2011-2012 Juho Vähä-Herttua |
| 3 | * |
| 4 | * This library is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Lesser General Public |
| 6 | * License as published by the Free Software Foundation; either |
| 7 | * version 2.1 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * This library is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * Lesser General Public License for more details. |
| 13 | */ |
| 14 | |
| 15 | #include <stdlib.h> |
| 16 | |
| 17 | #include "dnssd.h" |
| 18 | #include "dnssdint.h" |
| 19 | #include "global.h" |
| 20 | #include "utils.h" |
| 21 | |
| 22 | #import <Foundation/Foundation.h> |
| 23 | |
| 24 | #define MAX_SERVNAME 256 |
| 25 | |
| 26 | struct dnssd_s { |
| 27 | char hwaddr[MAX_HWADDR_LEN]; |
| 28 | int hwaddrlen; |
| 29 | |
| 30 | NSNetService *raopService; |
| 31 | NSNetService *airplayService; |
| 32 | }; |
| 33 | |
| 34 | dnssd_t * |
| 35 | dnssd_init(const char *hwaddr, int hwaddrlen, int *error) |
| 36 | { |
| 37 | dnssd_t *dnssd; |
| 38 | |
| 39 | if (error) *error = DNSSD_ERROR_NOERROR; |
| 40 | if (hwaddrlen > MAX_HWADDR_LEN) { |
| 41 | if (error) *error = DNSSD_ERROR_HWADDRLEN; |
| 42 | return NULL; |
| 43 | } |
| 44 | |
| 45 | dnssd = calloc(1, sizeof(dnssd_t)); |
| 46 | if (!dnssd) { |
| 47 | if (error) *error = DNSSD_ERROR_OUTOFMEM; |
| 48 | return NULL; |
| 49 | } |
| 50 | memcpy(dnssd->hwaddr, hwaddr, hwaddrlen); |
| 51 | dnssd->hwaddrlen = hwaddrlen; |
| 52 | |
| 53 | return dnssd; |
| 54 | } |
| 55 | |
| 56 | void |
| 57 | dnssd_destroy(dnssd_t *dnssd) |
| 58 | { |
| 59 | free(dnssd); |
| 60 | } |
| 61 | |
| 62 | int |
| 63 | dnssd_register_raop(dnssd_t *dnssd, const char *name, unsigned short port) |
| 64 | { |
| 65 | char hwaddrstr[MAX_SERVNAME]; |
| 66 | NSString *serviceString; |
| 67 | NSMutableDictionary *txtDict; |
| 68 | NSData *txtData; |
| 69 | int ret; |
| 70 | |
| 71 | assert(dnssd); |
| 72 | |
| 73 | if (dnssd->raopService != nil) { |
| 74 | return -1; |
| 75 | } |
| 76 | |
| 77 | /* Convert the hardware address to string */ |
| 78 | ret = utils_hwaddr_raop(hwaddrstr, sizeof(hwaddrstr), dnssd->hwaddr, dnssd->hwaddrlen); |
| 79 | if (ret < 0) { |
| 80 | return -2; |
| 81 | } |
| 82 | serviceString = [NSString stringWithFormat:@"%s@%s", hwaddrstr, name]; |
| 83 | |
| 84 | txtDict = [NSMutableDictionary dictionaryWithCapacity:0]; |
| 85 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_TXTVERS] forKey:@"txtvers"]; |
| 86 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_CH] forKey:@"ch"]; |
| 87 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_CN] forKey:@"cn"]; |
| 88 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_ET] forKey:@"et"]; |
| 89 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_SV] forKey:@"sv"]; |
| 90 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_DA] forKey:@"da"]; |
| 91 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_SR] forKey:@"sr"]; |
| 92 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_SS] forKey:@"ss"]; |
| 93 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_PW] forKey:@"pw"]; |
| 94 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_VN] forKey:@"vn"]; |
| 95 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_TP] forKey:@"tp"]; |
| 96 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_MD] forKey:@"md"]; |
| 97 | [txtDict setValue:[NSString stringWithUTF8String:GLOBAL_VERSION] forKey:@"vs"]; |
| 98 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_AM] forKey:@"am"]; |
| 99 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_SF] forKey:@"sf"]; |
| 100 | txtData = [NSNetService dataFromTXTRecordDictionary:txtDict]; |
| 101 | |
| 102 | /* Create the service and publish it */ |
| 103 | dnssd->raopService = [[NSNetService alloc] initWithDomain:@"" |
| 104 | type:@"_raop._tcp" |
| 105 | name:serviceString |
| 106 | port:port]; |
| 107 | [dnssd->raopService setTXTRecordData:txtData]; |
| 108 | [dnssd->raopService publish]; |
| 109 | return 1; |
| 110 | } |
| 111 | |
| 112 | int |
| 113 | dnssd_register_airplay(dnssd_t *dnssd, const char *name, unsigned short port) |
| 114 | { |
| 115 | NSMutableDictionary *txtDict; |
| 116 | NSData *txtData; |
| 117 | char deviceid[3*MAX_HWADDR_LEN]; |
| 118 | char features[16]; |
| 119 | int ret; |
| 120 | |
| 121 | assert(dnssd); |
| 122 | |
| 123 | if (dnssd->airplayService != nil) { |
| 124 | return -1; |
| 125 | } |
| 126 | |
| 127 | /* Convert hardware address to string */ |
| 128 | ret = utils_hwaddr_airplay(deviceid, sizeof(deviceid), dnssd->hwaddr, dnssd->hwaddrlen); |
| 129 | if (ret < 0) { |
| 130 | return -2; |
| 131 | } |
| 132 | |
| 133 | memset(features, 0, sizeof(features)); |
| 134 | snprintf(features, sizeof(features)-1, "0x%x", GLOBAL_FEATURES); |
| 135 | |
| 136 | txtDict = [NSMutableDictionary dictionaryWithCapacity:0]; |
| 137 | [txtDict setValue:[NSString stringWithUTF8String:deviceid] forKey:@"deviceid"]; |
| 138 | [txtDict setValue:[NSString stringWithUTF8String:features] forKey:@"features"]; |
| 139 | [txtDict setValue:[NSString stringWithUTF8String:GLOBAL_MODEL] forKey:@"model"]; |
| 140 | txtData = [NSNetService dataFromTXTRecordDictionary:txtDict]; |
| 141 | |
| 142 | /* Create the service and publish it */ |
| 143 | dnssd->airplayService = [[NSNetService alloc] initWithDomain:@"" |
| 144 | type:@"_airplay._tcp" |
| 145 | name:[NSString stringWithUTF8String:name] |
| 146 | port:port]; |
| 147 | [dnssd->airplayService setTXTRecordData:txtData]; |
| 148 | [dnssd->airplayService publish]; |
| 149 | return 1; |
| 150 | } |
| 151 | |
| 152 | void |
| 153 | dnssd_unregister_raop(dnssd_t *dnssd) |
| 154 | { |
| 155 | assert(dnssd); |
| 156 | |
| 157 | if (dnssd->raopService == nil) { |
| 158 | return; |
| 159 | } |
| 160 | |
| 161 | [dnssd->raopService stop]; |
| 162 | [dnssd->raopService release]; |
| 163 | dnssd->raopService = nil; |
| 164 | } |
| 165 | |
| 166 | void |
| 167 | dnssd_unregister_airplay(dnssd_t *dnssd) |
| 168 | { |
| 169 | assert(dnssd); |
| 170 | |
| 171 | if (dnssd->airplayService == nil) { |
| 172 | return; |
| 173 | } |
| 174 | |
| 175 | [dnssd->airplayService stop]; |
| 176 | [dnssd->airplayService release]; |
| 177 | dnssd->airplayService = nil; |
| 178 | } |