#include <linux/rtnetlink.h>
#include <errno.h>
#include <net/if.h>
+#include <stdio.h>
#include "iface.h"
#include "netlink.h"
#include "dns.h"
#include "socket.h"
#include "announce.h"
+#include "util.h"
+#include "log.h"
-static void update_address_rr(AvahiInterfaceMonitor *m, AvahiInterfaceAddress *a, int remove) {
+static void update_address_rr(AvahiInterfaceMonitor *m, AvahiInterfaceAddress *a, gboolean remove_rrs) {
g_assert(m);
g_assert(a);
- if (!avahi_interface_address_relevant(a) || remove) {
- if (a->entry_group) {
- avahi_entry_group_free(a->entry_group);
- a->entry_group = NULL;
+ if (avahi_interface_address_relevant(a) &&
+ !remove_rrs &&
+ m->server->config.publish_addresses &&
+ (m->server->state == AVAHI_SERVER_RUNNING ||
+ m->server->state == AVAHI_SERVER_REGISTERING)) {
+
+ /* Fill the entry group */
+ if (!a->entry_group)
+ a->entry_group = avahi_entry_group_new(m->server, avahi_host_rr_entry_group_callback, NULL);
+
+ if (avahi_entry_group_is_empty(a->entry_group)) {
+
+ if (avahi_server_add_address(m->server, a->entry_group, a->interface->hardware->index, a->interface->protocol, 0, NULL, &a->address) < 0) {
+ avahi_log_warn(__FILE__": avahi_server_add_address() failed.");
+ avahi_entry_group_free(a->entry_group);
+ a->entry_group = NULL;
+ return;
+ }
+
+ avahi_entry_group_commit(a->entry_group);
}
} else {
- if (!a->entry_group) {
- a->entry_group = avahi_entry_group_new(m->server, NULL, NULL);
- avahi_server_add_address(m->server, a->entry_group, a->interface->hardware->index, AF_UNSPEC, 0, NULL, &a->address);
- avahi_entry_group_commit(a->entry_group);
+
+ /* Clear the entry group */
+
+ if (a->entry_group && !avahi_entry_group_is_empty(a->entry_group)) {
+
+ if (avahi_entry_group_get_state(a->entry_group) == AVAHI_ENTRY_GROUP_REGISTERING)
+ avahi_server_decrease_host_rr_pending(m->server);
+
+ avahi_entry_group_reset(a->entry_group);
}
- }
+ }
}
-static void update_interface_rr(AvahiInterfaceMonitor *m, AvahiInterface *i, int remove) {
+static void update_interface_rr(AvahiInterfaceMonitor *m, AvahiInterface *i, gboolean remove_rrs) {
AvahiInterfaceAddress *a;
+
g_assert(m);
g_assert(i);
for (a = i->addresses; a; a = a->address_next)
- update_address_rr(m, a, remove);
+ update_address_rr(m, a, remove_rrs);
}
-static void update_hw_interface_rr(AvahiInterfaceMonitor *m, AvahiHwInterface *hw, int remove) {
+static void update_hw_interface_rr(AvahiInterfaceMonitor *m, AvahiHwInterface *hw, gboolean remove_rrs) {
AvahiInterface *i;
g_assert(m);
g_assert(hw);
for (i = hw->interfaces; i; i = i->by_hardware_next)
- update_interface_rr(m, i, remove);
+ update_interface_rr(m, i, remove_rrs);
+
+ if (!remove_rrs &&
+ m->server->config.publish_workstation &&
+ (m->server->state == AVAHI_SERVER_RUNNING ||
+ m->server->state == AVAHI_SERVER_REGISTERING)) {
+
+ if (!hw->entry_group)
+ hw->entry_group = avahi_entry_group_new(m->server, avahi_host_rr_entry_group_callback, NULL);
+
+ if (avahi_entry_group_is_empty(hw->entry_group)) {
+ gchar *name;
+ gchar *t = avahi_format_mac_address(hw->mac_address, hw->mac_address_size);
+
+ name = g_strdup_printf("%s [%s]", m->server->host_name, t);
+ g_free(t);
+
+ if (avahi_server_add_service(m->server, hw->entry_group, hw->index, AVAHI_PROTO_UNSPEC, name, "_workstation._tcp", NULL, NULL, 9, NULL) < 0) {
+ avahi_log_warn(__FILE__": avahi_server_add_service() failed.");
+ avahi_entry_group_free(hw->entry_group);
+ hw->entry_group = NULL;
+ } else
+ avahi_entry_group_commit(hw->entry_group);
+
+ g_free(name);
+ }
+
+ } else {
+
+ if (hw->entry_group && !avahi_entry_group_is_empty(hw->entry_group)) {
+
+ if (avahi_entry_group_get_state(hw->entry_group) == AVAHI_ENTRY_GROUP_REGISTERING)
+ avahi_server_decrease_host_rr_pending(m->server);
+
+ avahi_entry_group_reset(hw->entry_group);
+ }
+ }
}
static void free_address(AvahiInterfaceMonitor *m, AvahiInterfaceAddress *a) {
g_assert(a);
g_assert(a->interface);
+ update_address_rr(m, a, TRUE);
AVAHI_LLIST_REMOVE(AvahiInterfaceAddress, address, a->interface->addresses, a);
if (a->entry_group)
g_assert(m);
g_assert(i);
- g_message("removing interface %s.%i", i->hardware->name, i->protocol);
avahi_goodbye_interface(m->server, i, send_goodbye);
- g_message("flushing...");
- avahi_packet_scheduler_flush_responses(i->scheduler);
- g_message("done");
+ avahi_response_scheduler_force(i->response_scheduler);
g_assert(!i->announcements);
+ update_interface_rr(m, i, TRUE);
+
while (i->addresses)
free_address(m, i->addresses);
- avahi_packet_scheduler_free(i->scheduler);
+ avahi_response_scheduler_free(i->response_scheduler);
+ avahi_query_scheduler_free(i->query_scheduler);
+ avahi_probe_scheduler_free(i->probe_scheduler);
avahi_cache_free(i->cache);
AVAHI_LLIST_REMOVE(AvahiInterface, interface, m->interfaces, i);
g_assert(m);
g_assert(hw);
+ update_hw_interface_rr(m, hw, TRUE);
+
while (hw->interfaces)
free_interface(m, hw->interfaces, send_goodbye);
+ if (hw->entry_group)
+ avahi_entry_group_free(hw->entry_group);
+
AVAHI_LLIST_REMOVE(AvahiHwInterface, hardware, m->hw_interfaces, hw);
g_hash_table_remove(m->hash_table, &hw->index);
n = (struct nlmsghdr*) req;
n->nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg));
n->nlmsg_type = type;
- n->nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
+ n->nlmsg_flags = NLM_F_ROOT/*|NLM_F_MATCH*/|NLM_F_REQUEST;
n->nlmsg_pid = 0;
gen = NLMSG_DATA(n);
return avahi_netlink_send(nl, n, ret_seq);
}
-static void new_interface(AvahiInterfaceMonitor *m, AvahiHwInterface *hw, guchar protocol) {
+static void new_interface(AvahiInterfaceMonitor *m, AvahiHwInterface *hw, AvahiProtocol protocol) {
AvahiInterface *i;
g_assert(m);
g_assert(hw);
- g_assert(protocol != AF_UNSPEC);
+ g_assert(protocol != AVAHI_PROTO_UNSPEC);
i = g_new(AvahiInterface, 1);
i->monitor = m;
AVAHI_LLIST_HEAD_INIT(AvahiAnnouncement, i->announcements);
i->cache = avahi_cache_new(m->server, i);
- i->scheduler = avahi_packet_scheduler_new(m->server, i);
+ i->response_scheduler = avahi_response_scheduler_new(i);
+ i->query_scheduler = avahi_query_scheduler_new(i);
+ i->probe_scheduler = avahi_probe_scheduler_new(i);
AVAHI_LLIST_PREPEND(AvahiInterface, by_hardware, hw->interfaces, i);
AVAHI_LLIST_PREPEND(AvahiInterface, interface, m->interfaces, i);
b = avahi_interface_relevant(i);
if (b && !i->announcing) {
- g_message("New relevant interface %s.%i", i->hardware->name, i->protocol);
+ avahi_log_debug("New relevant interface %s.%i (#%i)", i->hardware->name, i->protocol, i->hardware->index);
- if (i->protocol == AF_INET)
- avahi_mdns_mcast_join_ipv4 (i->hardware->index, m->server->fd_ipv4);
- if (i->protocol == AF_INET6)
- avahi_mdns_mcast_join_ipv6 (i->hardware->index, m->server->fd_ipv6);
+ if (i->protocol == AVAHI_PROTO_INET)
+ avahi_mdns_mcast_join_ipv4(m->server->fd_ipv4, i->hardware->index);
+ if (i->protocol == AVAHI_PROTO_INET6)
+ avahi_mdns_mcast_join_ipv6(m->server->fd_ipv6, i->hardware->index);
i->announcing = TRUE;
avahi_announce_interface(m->server, i);
+ avahi_browser_new_interface(m->server, i);
} else if (!b && i->announcing) {
- g_message("Interface %s.%i no longer relevant", i->hardware->name, i->protocol);
+ avahi_log_debug("Interface %s.%i no longer relevant", i->hardware->name, i->protocol);
- avahi_goodbye_interface(m->server, i, FALSE);
+ if (i->protocol == AVAHI_PROTO_INET)
+ avahi_mdns_mcast_leave_ipv4(m->server->fd_ipv4, i->hardware->index);
+ if (i->protocol == AVAHI_PROTO_INET6)
+ avahi_mdns_mcast_leave_ipv6(m->server->fd_ipv6, i->hardware->index);
- if (i->protocol == AF_INET)
- avahi_mdns_mcast_leave_ipv4 (i->hardware->index, m->server->fd_ipv4);
- if (i->protocol == AF_INET6)
- avahi_mdns_mcast_leave_ipv6 (i->hardware->index, m->server->fd_ipv6);
+ avahi_goodbye_interface(m->server, i, FALSE);
+ avahi_response_scheduler_clear(i->response_scheduler);
+ avahi_query_scheduler_clear(i->query_scheduler);
+ avahi_probe_scheduler_clear(i->probe_scheduler);
+ avahi_cache_flush(i->cache);
i->announcing = FALSE;
}
check_interface_relevant(m, i);
}
-static void callback(AvahiNetlink *nl, struct nlmsghdr *n, gpointer userdata) {
+static void netlink_callback(AvahiNetlink *nl, struct nlmsghdr *n, gpointer userdata) {
AvahiInterfaceMonitor *m = userdata;
g_assert(m);
hw->name = NULL;
hw->flags = 0;
hw->mtu = 1500;
- hw->index = ifinfomsg->ifi_index;
+ hw->index = (AvahiIfIndex) ifinfomsg->ifi_index;
+ hw->mac_address_size = 0;
+ hw->entry_group = NULL;
AVAHI_LLIST_HEAD_INIT(AvahiInterface, hw->interfaces);
AVAHI_LLIST_PREPEND(AvahiHwInterface, hardware, m->hw_interfaces, hw);
g_hash_table_insert(m->hash_table, &hw->index, hw);
if (m->server->fd_ipv4 >= 0)
- new_interface(m, hw, AF_INET);
+ new_interface(m, hw, AVAHI_PROTO_INET);
if (m->server->fd_ipv6 >= 0)
- new_interface(m, hw, AF_INET6);
+ new_interface(m, hw, AVAHI_PROTO_INET6);
}
hw->flags = ifinfomsg->ifi_flags;
g_assert(RTA_PAYLOAD(a) == sizeof(unsigned int));
hw->mtu = *((unsigned int*) RTA_DATA(a));
break;
+
+ case IFLA_ADDRESS: {
+ hw->mac_address_size = RTA_PAYLOAD(a);
+ if (hw->mac_address_size > AVAHI_MAX_MAC_ADDRESS)
+ hw->mac_address_size = AVAHI_MAX_MAC_ADDRESS;
+
+ memcpy(hw->mac_address, RTA_DATA(a), hw->mac_address_size);
+ break;
+ }
default:
;
if (ifinfomsg->ifi_family != AF_UNSPEC)
return;
- if (!(hw = avahi_interface_monitor_get_hw_interface(m, ifinfomsg->ifi_index)))
+ if (!(hw = avahi_interface_monitor_get_hw_interface(m, (AvahiIfIndex) ifinfomsg->ifi_index)))
return;
update_hw_interface_rr(m, hw, TRUE);
struct rtattr *a = NULL;
size_t l;
AvahiAddress raddr;
- int raddr_valid = 0;
+ gboolean raddr_valid = FALSE;
- if (ifaddrmsg->ifa_family != AF_INET && ifaddrmsg->ifa_family != AF_INET6)
+ if (ifaddrmsg->ifa_family != AVAHI_PROTO_INET && ifaddrmsg->ifa_family != AVAHI_PROTO_INET6)
return;
- if (!(i = (AvahiInterface*) avahi_interface_monitor_get_interface(m, ifaddrmsg->ifa_index, ifaddrmsg->ifa_family)))
+ if (!(i = (AvahiInterface*) avahi_interface_monitor_get_interface(m, (AvahiIfIndex) ifaddrmsg->ifa_index, (AvahiProtocol) ifaddrmsg->ifa_family)))
return;
- raddr.family = ifaddrmsg->ifa_family;
+ raddr.family = (AvahiProtocol) ifaddrmsg->ifa_family;
- l = NLMSG_PAYLOAD(n, sizeof(struct ifinfomsg));
+ l = NLMSG_PAYLOAD(n, sizeof(struct ifaddrmsg));
a = IFA_RTA(ifaddrmsg);
while (RTA_OK(a, l)) {
+
switch(a->rta_type) {
case IFA_ADDRESS:
- if ((raddr.family == AF_INET6 && RTA_PAYLOAD(a) != 16) ||
- (raddr.family == AF_INET && RTA_PAYLOAD(a) != 4))
+ if ((raddr.family == AVAHI_PROTO_INET6 && RTA_PAYLOAD(a) != 16) ||
+ (raddr.family == AVAHI_PROTO_INET && RTA_PAYLOAD(a) != 4))
return;
memcpy(raddr.data.data, RTA_DATA(a), RTA_PAYLOAD(a));
- raddr_valid = 1;
+ raddr_valid = TRUE;
break;
-
+
default:
;
}
a = RTA_NEXT(a, l);
}
-
if (!raddr_valid)
return;
addr->flags = ifaddrmsg->ifa_flags;
addr->scope = ifaddrmsg->ifa_scope;
+ addr->prefix_len = ifaddrmsg->ifa_prefixlen;
update_address_rr(m, addr, FALSE);
- check_interface_relevant(m, i);
} else {
AvahiInterfaceAddress *addr;
update_address_rr(m, addr, TRUE);
free_address(m, addr);
-
- check_interface_relevant(m, i);
}
-
+
+ check_interface_relevant(m, i);
+
} else if (n->nlmsg_type == NLMSG_DONE) {
if (m->list == LIST_IFACE) {
m->list = LIST_DONE;
if (netlink_list_items(m->netlink, RTM_GETADDR, &m->query_addr_seq) < 0)
- g_warning("NETLINK: Failed to list addrs: %s", strerror(errno));
+ avahi_log_warn("NETLINK: Failed to list addrs: %s", strerror(errno));
else
m->list = LIST_ADDR;
} else {
m->list = LIST_DONE;
- g_message("Enumeration complete");
+ avahi_log_debug("Enumeration complete");
}
} else if (n->nlmsg_type == NLMSG_ERROR && (n->nlmsg_seq == m->query_link_seq || n->nlmsg_seq == m->query_addr_seq)) {
struct nlmsgerr *e = NLMSG_DATA (n);
if (e->error)
- g_warning("NETLINK: Failed to browse: %s", strerror(-e->error));
+ avahi_log_warn("NETLINK: Failed to browse: %s", strerror(-e->error));
}
}
m = g_new0(AvahiInterfaceMonitor, 1);
m->server = s;
- if (!(m->netlink = avahi_netlink_new(s->context, G_PRIORITY_DEFAULT-10, RTMGRP_LINK|RTMGRP_IPV4_IFADDR|RTMGRP_IPV6_IFADDR, callback, m)))
+ if (!(m->netlink = avahi_netlink_new(s->context, G_PRIORITY_DEFAULT-10, RTMGRP_LINK|RTMGRP_IPV4_IFADDR|RTMGRP_IPV6_IFADDR, netlink_callback, m)))
goto fail;
m->hash_table = g_hash_table_new(g_int_hash, g_int_equal);
}
-AvahiInterface* avahi_interface_monitor_get_interface(AvahiInterfaceMonitor *m, gint index, guchar protocol) {
+AvahiInterface* avahi_interface_monitor_get_interface(AvahiInterfaceMonitor *m, AvahiIfIndex idx, AvahiProtocol protocol) {
AvahiHwInterface *hw;
AvahiInterface *i;
g_assert(m);
- g_assert(index > 0);
- g_assert(protocol != AF_UNSPEC);
+ g_assert(idx > 0);
+ g_assert(protocol != AVAHI_PROTO_UNSPEC);
- if (!(hw = avahi_interface_monitor_get_hw_interface(m, index)))
+ if (!(hw = avahi_interface_monitor_get_hw_interface(m, idx)))
return NULL;
for (i = hw->interfaces; i; i = i->by_hardware_next)
return NULL;
}
-AvahiHwInterface* avahi_interface_monitor_get_hw_interface(AvahiInterfaceMonitor *m, gint index) {
+AvahiHwInterface* avahi_interface_monitor_get_hw_interface(AvahiInterfaceMonitor *m, AvahiIfIndex idx) {
g_assert(m);
- g_assert(index > 0);
+ g_assert(idx > 0);
- return g_hash_table_lookup(m->hash_table, &index);
+ return g_hash_table_lookup(m->hash_table, &idx);
}
void avahi_interface_send_packet_unicast(AvahiInterface *i, AvahiDnsPacket *p, const AvahiAddress *a, guint16 port) {
g_assert(i);
g_assert(p);
- char t[64];
+/* char t[64]; */
if (!avahi_interface_relevant(i))
return;
g_assert(!a || a->family == i->protocol);
- if (a)
- g_message("unicast sending on '%s.%i' to %s:%u", i->hardware->name, i->protocol, avahi_address_snprint(t, sizeof(t), a), port);
- else
- g_message("multicast sending on '%s.%i'", i->hardware->name, i->protocol);
+/* if (a) */
+/* avahi_log_debug("unicast sending on '%s.%i' to %s:%u", i->hardware->name, i->protocol, avahi_address_snprint(t, sizeof(t), a), port); */
+/* else */
+/* avahi_log_debug("multicast sending on '%s.%i'", i->hardware->name, i->protocol); */
- if (i->protocol == AF_INET && i->monitor->server->fd_ipv4 >= 0)
+ if (i->protocol == AVAHI_PROTO_INET && i->monitor->server->fd_ipv4 >= 0)
avahi_send_dns_packet_ipv4(i->monitor->server->fd_ipv4, i->hardware->index, p, a ? &a->data.ipv4 : NULL, port);
- else if (i->protocol == AF_INET6 && i->monitor->server->fd_ipv6 >= 0)
+ else if (i->protocol == AVAHI_PROTO_INET6 && i->monitor->server->fd_ipv6 >= 0)
avahi_send_dns_packet_ipv6(i->monitor->server->fd_ipv6, i->hardware->index, p, a ? &a->data.ipv6 : NULL, port);
}
g_assert(key);
if (avahi_interface_relevant(i))
- return avahi_packet_scheduler_post_query(i->scheduler, key, immediately);
+ return avahi_query_scheduler_post(i->query_scheduler, key, immediately);
return FALSE;
}
-gboolean avahi_interface_post_response(AvahiInterface *i, AvahiRecord *record, gboolean flush_cache, gboolean immediately) {
+gboolean avahi_interface_post_response(AvahiInterface *i, AvahiRecord *record, gboolean flush_cache, const AvahiAddress *querier, gboolean immediately) {
g_assert(i);
g_assert(record);
if (avahi_interface_relevant(i))
- return avahi_packet_scheduler_post_response(i->scheduler, record, flush_cache, immediately);
+ return avahi_response_scheduler_post(i->response_scheduler, record, flush_cache, querier, immediately);
return FALSE;
}
g_assert(record);
if (avahi_interface_relevant(i))
- return avahi_packet_scheduler_post_probe(i->scheduler, record, immediately);
+ return avahi_probe_scheduler_post(i->probe_scheduler, record, immediately);
return FALSE;
}
-void avahi_dump_caches(AvahiInterfaceMonitor *m, FILE *f) {
+void avahi_dump_caches(AvahiInterfaceMonitor *m, AvahiDumpCallback callback, gpointer userdata) {
AvahiInterface *i;
g_assert(m);
for (i = m->interfaces; i; i = i->interface_next) {
if (avahi_interface_relevant(i)) {
- fprintf(f, "\n;;; INTERFACE %s.%i ;;;\n", i->hardware->name, i->protocol);
- avahi_cache_dump(i->cache, f);
+ char ln[256];
+ snprintf(ln, sizeof(ln), ";;; INTERFACE %s.%i ;;;", i->hardware->name, i->protocol);
+ callback(ln, userdata);
+ avahi_cache_dump(i->cache, callback, userdata);
}
}
- fprintf(f, "\n");
}
gboolean avahi_interface_relevant(AvahiInterface *i) {
+ AvahiInterfaceAddress *a;
+ gboolean relevant_address;
+
g_assert(i);
+ relevant_address = FALSE;
+
+ for (a = i->addresses; a; a = a->address_next)
+ if (avahi_interface_address_relevant(a)) {
+ relevant_address = TRUE;
+ break;
+ }
+
+/* avahi_log_debug("%p. iface-relevant: %i %i %i %i %i %i", i, relevant_address, */
+/* (i->hardware->flags & IFF_UP), */
+/* (i->hardware->flags & IFF_RUNNING), */
+/* !(i->hardware->flags & IFF_LOOPBACK), */
+/* (i->hardware->flags & IFF_MULTICAST), */
+/* !(i->hardware->flags & IFF_POINTOPOINT)); */
+
return
(i->hardware->flags & IFF_UP) &&
- (i->hardware->flags & IFF_RUNNING) &&
+ (!i->monitor->server->config.use_iff_running || (i->hardware->flags & IFF_RUNNING)) &&
!(i->hardware->flags & IFF_LOOPBACK) &&
(i->hardware->flags & IFF_MULTICAST) &&
- i->addresses;
+ !(i->hardware->flags & IFF_POINTOPOINT) &&
+ relevant_address;
}
gboolean avahi_interface_address_relevant(AvahiInterfaceAddress *a) {
}
-gboolean avahi_interface_match(AvahiInterface *i, gint index, guchar protocol) {
+gboolean avahi_interface_match(AvahiInterface *i, AvahiIfIndex idx, AvahiProtocol protocol) {
g_assert(i);
- if (index > 0 && index != i->hardware->index)
+ if (idx > 0 && idx != i->hardware->index)
return FALSE;
- if (protocol != AF_UNSPEC && protocol != i->protocol)
+ if (protocol != AVAHI_PROTO_UNSPEC && protocol != i->protocol)
return FALSE;
return TRUE;
}
-
-void avahi_interface_monitor_walk(AvahiInterfaceMonitor *m, gint interface, guchar protocol, AvahiInterfaceMonitorWalkCallback callback, gpointer userdata) {
+void avahi_interface_monitor_walk(AvahiInterfaceMonitor *m, AvahiIfIndex interface, AvahiProtocol protocol, AvahiInterfaceMonitorWalkCallback callback, gpointer userdata) {
g_assert(m);
g_assert(callback);
if (interface > 0) {
- if (protocol != AF_UNSPEC) {
+ if (protocol != AVAHI_PROTO_UNSPEC) {
AvahiInterface *i;
if ((i = avahi_interface_monitor_get_interface(m, interface, protocol)))
callback(m, i, userdata);
}
}
+
+void avahi_update_host_rrs(AvahiInterfaceMonitor *m, gboolean remove_rrs) {
+ AvahiHwInterface *hw;
+
+ g_assert(m);
+
+ for (hw = m->hw_interfaces; hw; hw = hw->hardware_next)
+ update_hw_interface_rr(m, hw, remove_rrs);
+}
+
+gboolean avahi_address_is_local(AvahiInterfaceMonitor *m, const AvahiAddress *a) {
+ AvahiInterface *i;
+ AvahiInterfaceAddress *ia;
+ g_assert(m);
+ g_assert(a);
+
+ for (i = m->interfaces; i; i = i->interface_next)
+ for (ia = i->addresses; ia; ia = ia->address_next)
+ if (avahi_address_cmp(a, &ia->address) == 0)
+ return TRUE;
+
+ return FALSE;
+}
+
+gboolean avahi_interface_address_on_link(AvahiInterface *i, const AvahiAddress *a) {
+ AvahiInterfaceAddress *ia;
+
+ g_assert(i);
+ g_assert(a);
+
+ if (a->family != i->protocol)
+ return FALSE;
+
+ for (ia = i->addresses; ia; ia = ia->address_next) {
+
+ if (a->family == AVAHI_PROTO_INET) {
+ guint32 m;
+
+ m = ~(((guint32) -1) >> ia->prefix_len);
+
+ if ((g_ntohl(a->data.ipv4.address) & m) == (g_ntohl(ia->address.data.ipv4.address) & m))
+ return TRUE;
+ } else {
+ guint j;
+ guchar pl;
+ g_assert(a->family == AVAHI_PROTO_INET6);
+
+ pl = ia->prefix_len;
+
+ for (j = 0; j < 16; j++) {
+ guint8 m;
+
+ if (pl == 0)
+ return TRUE;
+
+ if (pl >= 8) {
+ m = 0xFF;
+ pl -= 8;
+ } else {
+ m = ~(0xFF >> pl);
+ pl = 0;
+ }
+
+ if ((a->data.ipv6.address[j] & m) != (ia->address.data.ipv6.address[j] & m))
+ break;
+ }
+ }
+ }
+
+ return FALSE;
+}
projects / catta / blobdiff