175 srtp_err_status_t srtp_rdbx_init(srtp_rdbx_t *rdbx, unsigned long ws)  in srtp_rdbx_init()  argument
181     if (bitvector_alloc(&rdbx->bitmask, ws) != 0) {  in srtp_rdbx_init()
185     srtp_index_init(&rdbx->index);  in srtp_rdbx_init()
193 srtp_err_status_t srtp_rdbx_dealloc(srtp_rdbx_t *rdbx)  in srtp_rdbx_dealloc()  argument
195     bitvector_dealloc(&rdbx->bitmask);  in srtp_rdbx_dealloc()
207 srtp_err_status_t srtp_rdbx_set_roc(srtp_rdbx_t *rdbx, uint32_t roc)  in srtp_rdbx_set_roc()  argument
209     bitvector_set_to_zero(&rdbx->bitmask);  in srtp_rdbx_set_roc()
216     if (roc < (rdbx->index >> 16)) {  in srtp_rdbx_set_roc()
220     rdbx->index &= 0xffff;                /* retain lowest 16 bits */  in srtp_rdbx_set_roc()
221     rdbx->index |= ((uint64_t)roc) << 16; /* set ROC */  in srtp_rdbx_set_roc()
232 srtp_xtd_seq_num_t srtp_rdbx_get_packet_index(const srtp_rdbx_t *rdbx)  in srtp_rdbx_get_packet_index()  argument
234     return rdbx->index;  in srtp_rdbx_get_packet_index()
242 unsigned long srtp_rdbx_get_window_size(const srtp_rdbx_t *rdbx)  in srtp_rdbx_get_window_size()  argument
244     return bitvector_get_length(&rdbx->bitmask);  in srtp_rdbx_get_window_size()
251 srtp_err_status_t srtp_rdbx_check(const srtp_rdbx_t *rdbx, int delta)  in srtp_rdbx_check()  argument
255     } else if ((int)(bitvector_get_length(&rdbx->bitmask) - 1) + delta < 0) {  in srtp_rdbx_check()
259                    &rdbx->bitmask,  in srtp_rdbx_check()
260                    (int)(bitvector_get_length(&rdbx->bitmask) - 1) + delta) ==  in srtp_rdbx_check()
278 srtp_err_status_t srtp_rdbx_add_index(srtp_rdbx_t *rdbx, int delta)  in srtp_rdbx_add_index()  argument
282         srtp_index_advance(&rdbx->index, delta);  in srtp_rdbx_add_index()
283         bitvector_left_shift(&rdbx->bitmask, delta);  in srtp_rdbx_add_index()
284         bitvector_set_bit(&rdbx->bitmask,  in srtp_rdbx_add_index()
285                           bitvector_get_length(&rdbx->bitmask) - 1);  in srtp_rdbx_add_index()
288         bitvector_set_bit(&rdbx->bitmask,  in srtp_rdbx_add_index()
289                           bitvector_get_length(&rdbx->bitmask) - 1 + delta);  in srtp_rdbx_add_index()
305 int32_t srtp_rdbx_estimate_index(const srtp_rdbx_t *rdbx,  in srtp_rdbx_estimate_index()  argument
319     if (high32(rdbx->index) > 0 || low32(rdbx->index) > seq_num_median)  in srtp_rdbx_estimate_index()
321     if (rdbx->index > seq_num_median)  in srtp_rdbx_estimate_index()
324         return srtp_index_guess(&rdbx->index, guess, s);  in srtp_rdbx_estimate_index()
334     return s - (uint16_t)low32(rdbx->index);  in srtp_rdbx_estimate_index()
336     return s - (uint16_t)rdbx->index;  in srtp_rdbx_estimate_index()
346 uint32_t srtp_rdbx_get_roc(const srtp_rdbx_t *rdbx)  in srtp_rdbx_get_roc()  argument
351     roc = ((high32(rdbx->index) << 16) | (low32(rdbx->index) >> 16));  in srtp_rdbx_get_roc()
353     roc = (uint32_t)(rdbx->index >> 16);  in srtp_rdbx_get_roc()
366 srtp_err_status_t srtp_rdbx_set_roc_seq(srtp_rdbx_t *rdbx,  in srtp_rdbx_set_roc_seq()  argument
375     if (roc < (rdbx->index >> 16)) {  in srtp_rdbx_set_roc_seq()
379     rdbx->index = seq;  in srtp_rdbx_set_roc_seq()
380     rdbx->index |= ((uint64_t)roc) << 16; /* set ROC */  in srtp_rdbx_set_roc_seq()
383     bitvector_set_to_zero(&rdbx->bitmask);  in srtp_rdbx_set_roc_seq()