inet/ip/ip2mac.c

41 ncec_cb_dispatch(ncec_t *ncec)
46 	mutex_enter(&ncec->ncec_lock);
47 	if (list_is_empty(&ncec->ncec_cb)) {
48 		mutex_exit(&ncec->ncec_lock);
51 	ncec_ip2mac_response(&ip2m, ncec);
52 	ncec_cb_refhold_locked(ncec);
61 	ncec_cb = list_head(&ncec->ncec_cb);
62 	for (; ncec_cb != NULL; ncec_cb = list_next(&ncec->ncec_cb, ncec_cb)) {
66 		mutex_exit(&ncec->ncec_lock);
68 		mutex_enter(&ncec->ncec_lock);
70 	ncec_cb_refrele(ncec);
71 	mutex_exit(&ncec->ncec_lock);
78 ncec_ip2mac_response(ip2mac_t *ip2m, ncec_t *ncec)
80 	boolean_t isv6 = (ncec->ncec_ipversion == IPV6_VERSION);
85 	ASSERT(MUTEX_HELD(&ncec->ncec_lock));
87 	if (NCE_ISREACHABLE(ncec) && !NCE_ISCONDEMNED(ncec))
94 		sin6->sin6_addr = ncec->ncec_addr;
98 		IN6_V4MAPPED_TO_INADDR(&ncec->ncec_addr, &sin->sin_addr);
103 		sdl->sdl_type = ncec->ncec_ill->ill_type;
109 		sdl->sdl_alen = ncec->ncec_ill->ill_phys_addr_length;
110 		if (ncec->ncec_lladdr != NULL)
111 			bcopy(ncec->ncec_lladdr, LLADDR(sdl), sdl->sdl_alen);
116 ncec_cb_refhold_locked(ncec_t *ncec)
118 	ASSERT(MUTEX_HELD(&ncec->ncec_lock));
119 	ncec->ncec_cb_walker_cnt++;
123 ncec_cb_refrele(ncec_t *ncec)
127 	ASSERT(MUTEX_HELD(&ncec->ncec_lock));
128 	if (--ncec->ncec_cb_walker_cnt == 0) {
129 		for (ncec_cb = list_head(&ncec->ncec_cb); ncec_cb != NULL;
132 			ncec_cb_next = list_next(&ncec->ncec_cb, ncec_cb);
135 			list_remove(&ncec->ncec_cb, ncec_cb);
146 ncec_add_cb(ncec_t *ncec, ip2mac_callback_t *cb, void *cbarg)
151 	ASSERT(MUTEX_HELD(&ncec->ncec_lock));
159 	 * clear mismatches, only look in the callback list of ncec's
162 	nce_cb->ncec_cb_id = ncec; /* no refs! just an address */
163 	list_insert_tail(&ncec->ncec_cb, nce_cb);
164 	ip2mid = ncec;  /* this is the id to be used in ip2mac_cancel */
180 	ncec_t		*ncec;
240 		ncec = nce->nce_common;
241 		delta = TICK_TO_MSEC(ddi_get_lbolt64()) - ncec->ncec_last;
242 		mutex_enter(&ncec->ncec_lock);
243 		if (NCE_ISREACHABLE(ncec) &&
245 			ncec_ip2mac_response(ip2m, ncec);
250 		mutex_exit(&ncec->ncec_lock);
258 	ncec = nce->nce_common;
259 	delta = TICK_TO_MSEC(ddi_get_lbolt64()) - ncec->ncec_last;
260 	mutex_enter(&ncec->ncec_lock);
261 	if (NCE_ISCONDEMNED(ncec)) {
264 		if (NCE_ISREACHABLE(ncec)) {
265 			if (NCE_MYADDR(ncec) ||
267 				ncec_ip2mac_response(ip2m, ncec);
269 				mutex_exit(&ncec->ncec_lock);
286 			ncec->ncec_rcnt = ill->ill_xmit_count;
287 			ncec->ncec_state = ND_PROBE;
289 		} else if (ncec->ncec_state == ND_INITIAL) {
291 			ncec->ncec_state = ND_INCOMPLETE;
297 		if (ncec->ncec_rcnt > 0) {
299 			 * Still resolving this ncec, so we can queue the
300 			 * callback information in ncec->ncec_cb
302 			ip2mid = ncec_add_cb(ncec, cb, cbarg);
311 	mutex_exit(&ncec->ncec_lock);
314 	 * if NCE_ISREACHABLE(ncec) but very old, or if it is ND_INITIAL,
318 		ip_ndp_resolve(ncec);
335  * callback invoked for each active ncec. If the ip2mac_id_t corresponds
336  * to an active nce_cb_t in the ncec's callback list, we want to remove
340 ip2mac_cancel_callback(ncec_t *ncec, void *arg)
346 	if (ip2m_nce_cb->ncec_cb_id != ncec)
349 	mutex_enter(&ncec->ncec_lock);
350 	if (list_is_empty(&ncec->ncec_cb)) {
351 		mutex_exit(&ncec->ncec_lock);
362 	ncec_cb = list_head(&ncec->ncec_cb);
363 	for (; ncec_cb != NULL; ncec_cb = list_next(&ncec->ncec_cb, ncec_cb)) {
370 		if (ncec->ncec_cb_walker_cnt == 0) {
371 			list_remove(&ncec->ncec_cb, ncec_cb);
377 	mutex_exit(&ncec->ncec_lock);