+++ /dev/null
-#include <sys/socket.h>
-#include <arpa/inet.h>
-#include <string.h>
-#include <sys/utsname.h>
-#include <unistd.h>
-
-#include "server.h"
-#include "util.h"
-#include "iface.h"
-#include "socket.h"
-#include "subscribe.h"
-
-static void free_entry(AvahiServer*s, AvahiEntry *e) {
- AvahiEntry *t;
-
- g_assert(s);
- g_assert(e);
-
- avahi_goodbye_entry(s, e, TRUE);
-
- /* Remove from linked list */
- AVAHI_LLIST_REMOVE(AvahiEntry, entries, s->entries, e);
-
- /* Remove from hash table indexed by name */
- t = g_hash_table_lookup(s->entries_by_key, e->record->key);
- AVAHI_LLIST_REMOVE(AvahiEntry, by_key, t, e);
- if (t)
- g_hash_table_replace(s->entries_by_key, t->record->key, t);
- else
- g_hash_table_remove(s->entries_by_key, e->record->key);
-
- /* Remove from associated group */
- if (e->group)
- AVAHI_LLIST_REMOVE(AvahiEntry, by_group, e->group->entries, e);
-
- avahi_record_unref(e->record);
- g_free(e);
-}
-
-static void free_group(AvahiServer *s, AvahiEntryGroup *g) {
- g_assert(s);
- g_assert(g);
-
- while (g->entries)
- free_entry(s, g->entries);
-
- AVAHI_LLIST_REMOVE(AvahiEntryGroup, groups, s->groups, g);
- g_free(g);
-}
-
-static void cleanup_dead(AvahiServer *s) {
- AvahiEntryGroup *g, *ng;
- AvahiEntry *e, *ne;
- g_assert(s);
-
-
- if (s->need_group_cleanup) {
- for (g = s->groups; g; g = ng) {
- ng = g->groups_next;
-
- if (g->dead)
- free_group(s, g);
- }
-
- s->need_group_cleanup = FALSE;
- }
-
- if (s->need_entry_cleanup) {
- for (e = s->entries; e; e = ne) {
- ne = e->entries_next;
-
- if (e->dead)
- free_entry(s, e);
- }
-
- s->need_entry_cleanup = FALSE;
- }
-}
-
-static void handle_query_key(AvahiServer *s, AvahiKey *k, AvahiInterface *i, const AvahiAddress *a, guint16 port, gboolean legacy_unicast, gboolean unicast_response) {
- AvahiEntry *e;
- gchar *txt;
-
- g_assert(s);
- g_assert(k);
- g_assert(i);
- g_assert(a);
-
- g_message("Handling query: %s", txt = avahi_key_to_string(k));
- g_free(txt);
-
- avahi_packet_scheduler_incoming_query(i->scheduler, k);
-
- if (k->type == AVAHI_DNS_TYPE_ANY) {
-
- /* Handle ANY query */
-
- for (e = s->entries; e; e = e->entries_next)
- if (!e->dead && avahi_key_pattern_match(k, e->record->key) && avahi_entry_registered(s, e, i))
- avahi_interface_post_response(i, a, e->record, e->flags & AVAHI_ENTRY_UNIQUE, FALSE);
- } else {
-
- /* Handle all other queries */
-
- for (e = g_hash_table_lookup(s->entries_by_key, k); e; e = e->by_key_next)
- if (!e->dead && avahi_entry_registered(s, e, i))
- avahi_interface_post_response(i, a, e->record, e->flags & AVAHI_ENTRY_UNIQUE, FALSE);
- }
-}
-
-static void withdraw_entry(AvahiServer *s, AvahiEntry *e) {
- g_assert(s);
- g_assert(e);
-
-
- if (e->group) {
- AvahiEntry *k;
-
- for (k = e->group->entries; k; k = k->by_group_next) {
- avahi_goodbye_entry(s, k, FALSE);
- k->dead = TRUE;
- }
-
- avahi_entry_group_change_state(e->group, AVAHI_ENTRY_GROUP_COLLISION);
- } else {
- avahi_goodbye_entry(s, e, FALSE);
- e->dead = TRUE;
- }
-
- s->need_entry_cleanup = TRUE;
-}
-
-static void incoming_probe(AvahiServer *s, AvahiRecord *record, AvahiInterface *i) {
- AvahiEntry *e, *n;
- gchar *t;
-
- g_assert(s);
- g_assert(record);
- g_assert(i);
-
- t = avahi_record_to_string(record);
-
-/* g_message("PROBE: [%s]", t); */
-
- for (e = g_hash_table_lookup(s->entries_by_key, record->key); e; e = n) {
- n = e->by_key_next;
-
- if (e->dead || avahi_record_equal_no_ttl(record, e->record))
- continue;
-
- if (avahi_entry_registering(s, e, i)) {
- gint cmp;
-
- if ((cmp = avahi_record_lexicographical_compare(record, e->record)) > 0) {
- withdraw_entry(s, e);
- g_message("Recieved conflicting probe [%s]. Local host lost. Withdrawing.", t);
- } else if (cmp < 0)
- g_message("Recieved conflicting probe [%s]. Local host won.", t);
-
- }
- }
-
- g_free(t);
-}
-
-static void handle_query(AvahiServer *s, AvahiDnsPacket *p, AvahiInterface *i, const AvahiAddress *a, guint16 port, gboolean legacy_unicast) {
- guint n;
-
- g_assert(s);
- g_assert(p);
- g_assert(i);
- g_assert(a);
-
- /* Handle the questions */
- for (n = avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_QDCOUNT); n > 0; n --) {
- AvahiKey *key;
- gboolean unicast_response = FALSE;
-
- if (!(key = avahi_dns_packet_consume_key(p, &unicast_response))) {
- g_warning("Packet too short (1)");
- return;
- }
-
- handle_query_key(s, key, i, a, port, legacy_unicast, unicast_response);
- avahi_key_unref(key);
- }
-
- /* Known Answer Suppression */
- for (n = avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_ANCOUNT); n > 0; n --) {
- AvahiRecord *record;
- gboolean unique = FALSE;
-
- if (!(record = avahi_dns_packet_consume_record(p, &unique))) {
- g_warning("Packet too short (2)");
- return;
- }
-
- avahi_packet_scheduler_incoming_known_answer(i->scheduler, record, a);
- avahi_record_unref(record);
- }
-
- /* Probe record */
- for (n = avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_NSCOUNT); n > 0; n --) {
- AvahiRecord *record;
- gboolean unique = FALSE;
-
- if (!(record = avahi_dns_packet_consume_record(p, &unique))) {
- g_warning("Packet too short (3)");
- return;
- }
-
- if (record->key->type != AVAHI_DNS_TYPE_ANY)
- incoming_probe(s, record, i);
-
- avahi_record_unref(record);
- }
-}
-
-static gboolean handle_conflict(AvahiServer *s, AvahiInterface *i, AvahiRecord *record, gboolean unique, const AvahiAddress *a) {
- gboolean valid = TRUE;
- AvahiEntry *e, *n;
- gchar *t;
-
- g_assert(s);
- g_assert(i);
- g_assert(record);
-
- t = avahi_record_to_string(record);
-
-/* g_message("CHECKING FOR CONFLICT: [%s]", t); */
-
- for (e = g_hash_table_lookup(s->entries_by_key, record->key); e; e = n) {
- n = e->by_key_next;
-
- if (e->dead)
- continue;
-
- if (avahi_entry_registered(s, e, i)) {
-
- gboolean equal = avahi_record_equal_no_ttl(record, e->record);
-
- /* Check whether there is a unique record conflict */
- if (!equal && ((e->flags & AVAHI_ENTRY_UNIQUE) || unique)) {
- gint cmp;
-
- /* The lexicographically later data wins. */
- if ((cmp = avahi_record_lexicographical_compare(record, e->record)) > 0) {
- g_message("Recieved conflicting record [%s]. Local host lost. Withdrawing.", t);
- withdraw_entry(s, e);
- } else if (cmp < 0) {
- /* Tell the other host that our entry is lexicographically later */
-
- g_message("Recieved conflicting record [%s]. Local host won. Refreshing.", t);
-
- valid = FALSE;
- avahi_interface_post_response(i, a, e->record, e->flags & AVAHI_ENTRY_UNIQUE, TRUE);
- }
-
- /* Check wheter there is a TTL conflict */
- } else if (equal && record->ttl <= e->record->ttl/2) {
- /* Correct the TTL */
- valid = FALSE;
- avahi_interface_post_response(i, a, e->record, e->flags & AVAHI_ENTRY_UNIQUE, TRUE);
- g_message("Recieved record with bad TTL [%s]. Refreshing.", t);
- }
-
- } else if (avahi_entry_registering(s, e, i)) {
-
- if (!avahi_record_equal_no_ttl(record, e->record) && ((e->flags & AVAHI_ENTRY_UNIQUE) || unique)) {
-
- /* We are currently registering a matching record, but
- * someone else already claimed it, so let's
- * withdraw */
-
- g_message("Recieved conflicting record [%s] with local record to be. Withdrawing.", t);
- withdraw_entry(s, e);
- }
- }
- }
-
- g_free(t);
-
- return valid;
-}
-
-static void handle_response(AvahiServer *s, AvahiDnsPacket *p, AvahiInterface *i, const AvahiAddress *a) {
- guint n;
-
- g_assert(s);
- g_assert(p);
- g_assert(i);
- g_assert(a);
-
- for (n = avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_ANCOUNT) +
- avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_ARCOUNT); n > 0; n--) {
- AvahiRecord *record;
- gboolean cache_flush = FALSE;
- gchar *txt;
-
- if (!(record = avahi_dns_packet_consume_record(p, &cache_flush))) {
- g_warning("Packet too short (4)");
- return;
- }
-
- if (record->key->type != AVAHI_DNS_TYPE_ANY) {
-
- g_message("Handling response: %s", txt = avahi_record_to_string(record));
- g_free(txt);
-
- if (handle_conflict(s, i, record, cache_flush, a)) {
- avahi_cache_update(i->cache, record, cache_flush, a);
- avahi_packet_scheduler_incoming_response(i->scheduler, record);
- }
- }
-
- avahi_record_unref(record);
- }
-}
-
-static void dispatch_packet(AvahiServer *s, AvahiDnsPacket *p, struct sockaddr *sa, gint iface, gint ttl) {
- AvahiInterface *i;
- AvahiAddress a;
- guint16 port;
-
- g_assert(s);
- g_assert(p);
- g_assert(sa);
- g_assert(iface > 0);
-
- if (!(i = avahi_interface_monitor_get_interface(s->monitor, iface, sa->sa_family))) {
- g_warning("Recieved packet from invalid interface.");
- return;
- }
-
- g_message("new packet recieved on interface '%s.%i'.", i->hardware->name, i->protocol);
-
- if (sa->sa_family == AF_INET6) {
- static const guint8 ipv4_in_ipv6[] = {
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0xFF, 0xFF, 0xFF, 0xFF };
-
- /* This is an IPv4 address encapsulated in IPv6, so let's ignore it. */
-
- if (memcmp(((struct sockaddr_in6*) sa)->sin6_addr.s6_addr, ipv4_in_ipv6, sizeof(ipv4_in_ipv6)) == 0)
- return;
- }
-
- if (avahi_dns_packet_check_valid(p) < 0) {
- g_warning("Recieved invalid packet.");
- return;
- }
-
- port = avahi_port_from_sockaddr(sa);
- avahi_address_from_sockaddr(sa, &a);
-
- if (avahi_dns_packet_is_query(p)) {
- gboolean legacy_unicast = FALSE;
-
- if (avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_QDCOUNT) == 0 ||
- avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_ARCOUNT) != 0) {
- g_warning("Invalid query packet.");
- return;
- }
-
- if (port != AVAHI_MDNS_PORT) {
- /* Legacy Unicast */
-
- if ((avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_ANCOUNT) != 0 ||
- avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_NSCOUNT) != 0)) {
- g_warning("Invalid legacy unicast query packet.");
- return;
- }
-
- legacy_unicast = TRUE;
- }
-
- handle_query(s, p, i, &a, port, legacy_unicast);
-
- g_message("Handled query");
- } else {
-
- if (port != AVAHI_MDNS_PORT) {
- g_warning("Recieved repsonse with invalid source port %u on interface '%s.%i'", port, i->hardware->name, i->protocol);
- return;
- }
-
- if (ttl != 255) {
- g_warning("Recieved response with invalid TTL %u on interface '%s.%i'.", ttl, i->hardware->name, i->protocol);
- if (!s->ignore_bad_ttl)
- return;
- }
-
- if (avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_QDCOUNT) != 0 ||
- avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_ANCOUNT) == 0 ||
- avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_NSCOUNT) != 0) {
- g_warning("Invalid response packet.");
- return;
- }
-
- handle_response(s, p, i, &a);
- g_message("Handled response");
- }
-}
-
-static void work(AvahiServer *s) {
- struct sockaddr_in6 sa6;
- struct sockaddr_in sa;
- AvahiDnsPacket *p;
- gint iface = -1;
- guint8 ttl;
-
- g_assert(s);
-
- if (s->pollfd_ipv4.revents & G_IO_IN) {
- if ((p = avahi_recv_dns_packet_ipv4(s->fd_ipv4, &sa, &iface, &ttl))) {
- dispatch_packet(s, p, (struct sockaddr*) &sa, iface, ttl);
- avahi_dns_packet_free(p);
- }
- }
-
- if (s->pollfd_ipv6.revents & G_IO_IN) {
- if ((p = avahi_recv_dns_packet_ipv6(s->fd_ipv6, &sa6, &iface, &ttl))) {
- dispatch_packet(s, p, (struct sockaddr*) &sa6, iface, ttl);
- avahi_dns_packet_free(p);
- }
- }
-}
-
-static gboolean prepare_func(GSource *source, gint *timeout) {
- g_assert(source);
- g_assert(timeout);
-
- *timeout = -1;
- return FALSE;
-}
-
-static gboolean check_func(GSource *source) {
- AvahiServer* s;
- g_assert(source);
-
- s = *((AvahiServer**) (((guint8*) source) + sizeof(GSource)));
- g_assert(s);
-
- return (s->pollfd_ipv4.revents | s->pollfd_ipv6.revents) & (G_IO_IN | G_IO_HUP | G_IO_ERR);
-}
-
-static gboolean dispatch_func(GSource *source, GSourceFunc callback, gpointer user_data) {
- AvahiServer* s;
- g_assert(source);
-
- s = *((AvahiServer**) (((guint8*) source) + sizeof(GSource)));
- g_assert(s);
-
- work(s);
- cleanup_dead(s);
-
- return TRUE;
-}
-
-static void add_default_entries(AvahiServer *s) {
- gint length = 0;
- struct utsname utsname;
- gchar *hinfo;
- AvahiAddress a;
- AvahiRecord *r;
-
- g_assert(s);
-
- /* Fill in HINFO rr */
- r = avahi_record_new_full(s->hostname, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_HINFO);
- uname(&utsname);
- r->data.hinfo.cpu = g_strdup(g_strup(utsname.machine));
- r->data.hinfo.os = g_strdup(g_strup(utsname.sysname));
- avahi_server_add(s, NULL, 0, AF_UNSPEC, AVAHI_ENTRY_UNIQUE, r);
- avahi_record_unref(r);
-
- /* Add localhost entries */
- avahi_address_parse("127.0.0.1", AF_INET, &a);
- avahi_server_add_address(s, NULL, 0, AF_UNSPEC, AVAHI_ENTRY_UNIQUE|AVAHI_ENTRY_NOPROBE|AVAHI_ENTRY_NOANNOUNCE, "localhost", &a);
-
- avahi_address_parse("::1", AF_INET6, &a);
- avahi_server_add_address(s, NULL, 0, AF_UNSPEC, AVAHI_ENTRY_UNIQUE|AVAHI_ENTRY_NOPROBE|AVAHI_ENTRY_NOANNOUNCE, "ip6-localhost", &a);
-}
-
-AvahiServer *avahi_server_new(GMainContext *c) {
- gchar *hn, *e;
- AvahiServer *s;
-
- static GSourceFuncs source_funcs = {
- prepare_func,
- check_func,
- dispatch_func,
- NULL,
- NULL,
- NULL
- };
-
- s = g_new(AvahiServer, 1);
-
- s->ignore_bad_ttl = FALSE;
- s->need_entry_cleanup = s->need_group_cleanup = FALSE;
-
- s->fd_ipv4 = avahi_open_socket_ipv4();
- s->fd_ipv6 = avahi_open_socket_ipv6();
-
- if (s->fd_ipv6 < 0 && s->fd_ipv4 < 0) {
- g_critical("Failed to create IP sockets.\n");
- g_free(s);
- return NULL;
- }
-
- if (s->fd_ipv4 < 0)
- g_message("Failed to create IPv4 socket, proceeding in IPv6 only mode");
- else if (s->fd_ipv6 < 0)
- g_message("Failed to create IPv6 socket, proceeding in IPv4 only mode");
-
- if (c)
- g_main_context_ref(s->context = c);
- else
- s->context = g_main_context_default();
-
- AVAHI_LLIST_HEAD_INIT(AvahiEntry, s->entries);
- s->entries_by_key = g_hash_table_new((GHashFunc) avahi_key_hash, (GEqualFunc) avahi_key_equal);
- AVAHI_LLIST_HEAD_INIT(AvahiGroup, s->groups);
-
- AVAHI_LLIST_HEAD_INIT(AvahiSubscription, s->subscriptions);
- s->subscription_hashtable = g_hash_table_new((GHashFunc) avahi_key_hash, (GEqualFunc) avahi_key_equal);
-
- /* Get host name */
- hn = avahi_get_host_name();
- hn[strcspn(hn, ".")] = 0;
-
- s->hostname = g_strdup_printf("%s.local.", hn);
- g_free(hn);
-
- s->time_event_queue = avahi_time_event_queue_new(s->context, G_PRIORITY_DEFAULT+10); /* Slightly less priority than the FDs */
- s->monitor = avahi_interface_monitor_new(s);
- avahi_interface_monitor_sync(s->monitor);
- add_default_entries(s);
-
- /* Prepare IO source registration */
- s->source = g_source_new(&source_funcs, sizeof(GSource) + sizeof(AvahiServer*));
- *((AvahiServer**) (((guint8*) s->source) + sizeof(GSource))) = s;
-
- memset(&s->pollfd_ipv4, 0, sizeof(s->pollfd_ipv4));
- s->pollfd_ipv4.fd = s->fd_ipv4;
- s->pollfd_ipv4.events = G_IO_IN|G_IO_ERR|G_IO_HUP;
- g_source_add_poll(s->source, &s->pollfd_ipv4);
-
- memset(&s->pollfd_ipv6, 0, sizeof(s->pollfd_ipv6));
- s->pollfd_ipv6.fd = s->fd_ipv6;
- s->pollfd_ipv6.events = G_IO_IN|G_IO_ERR|G_IO_HUP;
- g_source_add_poll(s->source, &s->pollfd_ipv6);
-
- g_source_attach(s->source, s->context);
-
- return s;
-}
-
-void avahi_server_free(AvahiServer* s) {
- g_assert(s);
-
- while(s->entries)
- free_entry(s, s->entries);
-
- avahi_interface_monitor_free(s->monitor);
-
- while (s->groups)
- free_group(s, s->groups);
-
- while (s->subscriptions)
- avahi_subscription_free(s->subscriptions);
- g_hash_table_destroy(s->subscription_hashtable);
-
- g_hash_table_destroy(s->entries_by_key);
-
- avahi_time_event_queue_free(s->time_event_queue);
-
- if (s->fd_ipv4 >= 0)
- close(s->fd_ipv4);
- if (s->fd_ipv6 >= 0)
- close(s->fd_ipv6);
-
- g_free(s->hostname);
-
- g_source_destroy(s->source);
- g_source_unref(s->source);
- g_main_context_unref(s->context);
-
- g_free(s);
-}
-
-void avahi_server_add(
- AvahiServer *s,
- AvahiEntryGroup *g,
- gint interface,
- guchar protocol,
- AvahiEntryFlags flags,
- AvahiRecord *r) {
-
- AvahiEntry *e, *t;
- g_assert(s);
- g_assert(r);
-
- g_assert(r->key->type != AVAHI_DNS_TYPE_ANY);
-
- e = g_new(AvahiEntry, 1);
- e->server = s;
- e->record = avahi_record_ref(r);
- e->group = g;
- e->interface = interface;
- e->protocol = protocol;
- e->flags = flags;
- e->dead = FALSE;
-
- AVAHI_LLIST_HEAD_INIT(AvahiAnnouncement, e->announcements);
-
- AVAHI_LLIST_PREPEND(AvahiEntry, entries, s->entries, e);
-
- /* Insert into hash table indexed by name */
- t = g_hash_table_lookup(s->entries_by_key, e->record->key);
- AVAHI_LLIST_PREPEND(AvahiEntry, by_key, t, e);
- g_hash_table_replace(s->entries_by_key, e->record->key, t);
-
- /* Insert into group list */
- if (g)
- AVAHI_LLIST_PREPEND(AvahiEntry, by_group, g->entries, e);
-
- avahi_announce_entry(s, e);
-}
-const AvahiRecord *avahi_server_iterate(AvahiServer *s, AvahiEntryGroup *g, void **state) {
- AvahiEntry **e = (AvahiEntry**) state;
- g_assert(s);
- g_assert(e);
-
- if (!*e)
- *e = g ? g->entries : s->entries;
-
- while (*e && (*e)->dead)
- *e = g ? (*e)->by_group_next : (*e)->entries_next;
-
- if (!*e)
- return NULL;
-
- return avahi_record_ref((*e)->record);
-}
-
-void avahi_server_dump(AvahiServer *s, FILE *f) {
- AvahiEntry *e;
- g_assert(s);
- g_assert(f);
-
- fprintf(f, "\n;;; ZONE DUMP FOLLOWS ;;;\n");
-
- for (e = s->entries; e; e = e->entries_next) {
- gchar *t;
-
- if (e->dead)
- continue;
-
- t = avahi_record_to_string(e->record);
- fprintf(f, "%s ; iface=%i proto=%i\n", t, e->interface, e->protocol);
- g_free(t);
- }
-
- avahi_dump_caches(s->monitor, f);
-}
-
-void avahi_server_add_ptr(
- AvahiServer *s,
- AvahiEntryGroup *g,
- gint interface,
- guchar protocol,
- AvahiEntryFlags flags,
- const gchar *name,
- const gchar *dest) {
-
- AvahiRecord *r;
-
- g_assert(dest);
-
- r = avahi_record_new_full(name ? name : s->hostname, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR);
- r->data.ptr.name = avahi_normalize_name(dest);
- avahi_server_add(s, g, interface, protocol, flags, r);
- avahi_record_unref(r);
-}
-
-void avahi_server_add_address(
- AvahiServer *s,
- AvahiEntryGroup *g,
- gint interface,
- guchar protocol,
- AvahiEntryFlags flags,
- const gchar *name,
- AvahiAddress *a) {
-
- gchar *n = NULL;
- g_assert(s);
- g_assert(a);
-
- name = name ? (n = avahi_normalize_name(name)) : s->hostname;
-
- if (a->family == AF_INET) {
- gchar *reverse;
- AvahiRecord *r;
-
- r = avahi_record_new_full(name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_A);
- r->data.a.address = a->data.ipv4;
- avahi_server_add(s, g, interface, protocol, flags, r);
- avahi_record_unref(r);
-
- reverse = avahi_reverse_lookup_name_ipv4(&a->data.ipv4);
- g_assert(reverse);
- avahi_server_add_ptr(s, g, interface, protocol, flags, reverse, name);
- g_free(reverse);
-
- } else {
- gchar *reverse;
- AvahiRecord *r;
-
- r = avahi_record_new_full(name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_AAAA);
- r->data.aaaa.address = a->data.ipv6;
- avahi_server_add(s, g, interface, protocol, flags, r);
- avahi_record_unref(r);
-
- reverse = avahi_reverse_lookup_name_ipv6_arpa(&a->data.ipv6);
- g_assert(reverse);
- avahi_server_add_ptr(s, g, interface, protocol, flags, reverse, name);
- g_free(reverse);
-
- reverse = avahi_reverse_lookup_name_ipv6_int(&a->data.ipv6);
- g_assert(reverse);
- avahi_server_add_ptr(s, g, interface, protocol, flags, reverse, name);
- g_free(reverse);
- }
-
- g_free(n);
-}
-
-void avahi_server_add_text_strlst(
- AvahiServer *s,
- AvahiEntryGroup *g,
- gint interface,
- guchar protocol,
- AvahiEntryFlags flags,
- const gchar *name,
- AvahiStringList *strlst) {
-
- AvahiRecord *r;
-
- g_assert(s);
-
- r = avahi_record_new_full(name ? name : s->hostname, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_TXT);
- r->data.txt.string_list = strlst;
- avahi_server_add(s, g, interface, protocol, flags, r);
- avahi_record_unref(r);
-}
-
-void avahi_server_add_text_va(
- AvahiServer *s,
- AvahiEntryGroup *g,
- gint interface,
- guchar protocol,
- AvahiEntryFlags flags,
- const gchar *name,
- va_list va) {
-
- g_assert(s);
-
- avahi_server_add_text_strlst(s, g, interface, protocol, flags, name, avahi_string_list_new_va(va));
-}
-
-void avahi_server_add_text(
- AvahiServer *s,
- AvahiEntryGroup *g,
- gint interface,
- guchar protocol,
- AvahiEntryFlags flags,
- const gchar *name,
- ...) {
-
- va_list va;
-
- g_assert(s);
-
- va_start(va, name);
- avahi_server_add_text_va(s, g, interface, protocol, flags, name, va);
- va_end(va);
-}
-
-static void escape_service_name(gchar *d, guint size, const gchar *s) {
- g_assert(d);
- g_assert(size);
- g_assert(s);
-
- while (*s && size >= 2) {
- if (*s == '.' || *s == '\\') {
- if (size < 3)
- break;
-
- *(d++) = '\\';
- size--;
- }
-
- *(d++) = *(s++);
- size--;
- }
-
- g_assert(size > 0);
- *(d++) = 0;
-}
-
-void avahi_server_add_service_strlst(
- AvahiServer *s,
- AvahiEntryGroup *g,
- gint interface,
- guchar protocol,
- const gchar *type,
- const gchar *name,
- const gchar *domain,
- const gchar *host,
- guint16 port,
- AvahiStringList *strlst) {
-
- gchar ptr_name[256], svc_name[256], ename[64], enum_ptr[256];
- AvahiRecord *r;
-
- g_assert(s);
- g_assert(type);
- g_assert(name);
-
- escape_service_name(ename, sizeof(ename), name);
-
- if (domain) {
- while (domain[0] == '.')
- domain++;
- } else
- domain = "local";
-
- if (!host)
- host = s->hostname;
-
- snprintf(ptr_name, sizeof(ptr_name), "%s.%s", type, domain);
- snprintf(svc_name, sizeof(svc_name), "%s.%s.%s", ename, type, domain);
-
- avahi_server_add_ptr(s, g, interface, protocol, AVAHI_ENTRY_NULL, ptr_name, svc_name);
-
- r = avahi_record_new_full(svc_name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_SRV);
- r->data.srv.priority = 0;
- r->data.srv.weight = 0;
- r->data.srv.port = port;
- r->data.srv.name = avahi_normalize_name(host);
- avahi_server_add(s, g, interface, protocol, AVAHI_ENTRY_UNIQUE, r);
- avahi_record_unref(r);
-
- avahi_server_add_text_strlst(s, g, interface, protocol, AVAHI_ENTRY_UNIQUE, svc_name, strlst);
-
- snprintf(enum_ptr, sizeof(enum_ptr), "_services._dns-sd._udp.%s", domain);
- avahi_server_add_ptr(s, g, interface, protocol, AVAHI_ENTRY_NULL, enum_ptr, ptr_name);
-}
-
-void avahi_server_add_service_va(
- AvahiServer *s,
- AvahiEntryGroup *g,
- gint interface,
- guchar protocol,
- const gchar *type,
- const gchar *name,
- const gchar *domain,
- const gchar *host,
- guint16 port,
- va_list va){
-
- g_assert(s);
- g_assert(type);
- g_assert(name);
-
- avahi_server_add_service(s, g, interface, protocol, type, name, domain, host, port, avahi_string_list_new_va(va));
-}
-
-void avahi_server_add_service(
- AvahiServer *s,
- AvahiEntryGroup *g,
- gint interface,
- guchar protocol,
- const gchar *type,
- const gchar *name,
- const gchar *domain,
- const gchar *host,
- guint16 port,
- ... ){
-
- va_list va;
-
- g_assert(s);
- g_assert(type);
- g_assert(name);
-
- va_start(va, port);
- avahi_server_add_service_va(s, g, interface, protocol, type, name, domain, host, port, va);
- va_end(va);
-}
-
-static void post_query_callback(AvahiInterfaceMonitor *m, AvahiInterface *i, gpointer userdata) {
- AvahiKey *k = userdata;
-
- g_assert(m);
- g_assert(i);
- g_assert(k);
-
- avahi_interface_post_query(i, k, FALSE);
-}
-
-void avahi_server_post_query(AvahiServer *s, gint interface, guchar protocol, AvahiKey *key) {
- g_assert(s);
- g_assert(key);
-
- avahi_interface_monitor_walk(s->monitor, interface, protocol, post_query_callback, key);
-}
-
-struct tmpdata {
- AvahiRecord *record;
- gboolean flush_cache;
-};
-
-static void post_response_callback(AvahiInterfaceMonitor *m, AvahiInterface *i, gpointer userdata) {
- struct tmpdata *tmpdata = userdata;
-
- g_assert(m);
- g_assert(i);
- g_assert(tmpdata);
-
- avahi_interface_post_response(i, NULL, tmpdata->record, tmpdata->flush_cache, FALSE);
-}
-
-void avahi_server_post_response(AvahiServer *s, gint interface, guchar protocol, AvahiRecord *record, gboolean flush_cache) {
- struct tmpdata tmpdata;
-
- g_assert(s);
- g_assert(record);
-
- tmpdata.record = record;
- tmpdata.flush_cache = flush_cache;
-
- avahi_interface_monitor_walk(s->monitor, interface, protocol, post_response_callback, &tmpdata);
-}
-
-void avahi_entry_group_change_state(AvahiEntryGroup *g, AvahiEntryGroupState state) {
- g_assert(g);
-
- g->state = state;
-
- if (g->callback) {
- g->callback(g->server, g, state, g->userdata);
- return;
- }
-}
-
-AvahiEntryGroup *avahi_entry_group_new(AvahiServer *s, AvahiEntryGroupCallback callback, gpointer userdata) {
- AvahiEntryGroup *g;
-
- g_assert(s);
-
- g = g_new(AvahiEntryGroup, 1);
- g->server = s;
- g->callback = callback;
- g->userdata = userdata;
- g->dead = FALSE;
- g->state = AVAHI_ENTRY_GROUP_UNCOMMITED;
- g->n_probing = 0;
- AVAHI_LLIST_HEAD_INIT(AvahiEntry, g->entries);
-
- AVAHI_LLIST_PREPEND(AvahiEntryGroup, groups, s->groups, g);
- return g;
-}
-
-void avahi_entry_group_free(AvahiEntryGroup *g) {
- g_assert(g);
- g_assert(g->server);
-
- g->dead = TRUE;
- g->server->need_group_cleanup = TRUE;
-}
-
-void avahi_entry_group_commit(AvahiEntryGroup *g) {
- AvahiEntry *e;
-
- g_assert(g);
- g_assert(!g->dead);
-
- if (g->state != AVAHI_ENTRY_GROUP_UNCOMMITED)
- return;
-
- avahi_entry_group_change_state(g, AVAHI_ENTRY_GROUP_REGISTERING);
- avahi_announce_group(g->server, g);
- avahi_entry_group_check_probed(g, FALSE);
-}
-
-gboolean avahi_entry_commited(AvahiEntry *e) {
- g_assert(e);
- g_assert(!e->dead);
-
- return !e->group ||
- e->group->state == AVAHI_ENTRY_GROUP_REGISTERING ||
- e->group->state == AVAHI_ENTRY_GROUP_ESTABLISHED;
-}
-
-AvahiEntryGroupState avahi_entry_group_get_state(AvahiEntryGroup *g) {
- g_assert(g);
- g_assert(!g->dead);
-
- return g->state;
-}
projects / catta / blobdiff