usr.sbin/rtadvd/rrenum.c

82 rr_pco_check(int len, struct rr_pco_match *rpm)
87 	/* rpm->rpm_len must be (4N * 3) as router-renum-05.txt */
88 	if ((rpm->rpm_len - 3) < 0 || /* must be at least 3 */
89 	    (rpm->rpm_len - 3) & 0x3) { /* must be multiple of 4 */
91 		    __func__, rpm->rpm_len);
94 	/* rpm->rpm_code must be valid value */
95 	switch (rpm->rpm_code) {
102 		    rpm->rpm_code);
105 	/* rpm->rpm_matchlen must be 0 to 128 inclusive */
106 	if (rpm->rpm_matchlen > 128) {
108 		    __func__, rpm->rpm_matchlen);
116 	for (rpu = (struct rr_pco_use *)(rpm + 1),
117 	     rpulim = (struct rr_pco_use *)((char *)rpm + len);
141 do_use_prefix(int len, struct rr_pco_match *rpm,
149 	rpu = (struct rr_pco_use *)(rpm + 1);
150 	rpulim = (struct rr_pco_use *)((char *)rpm + len);
153 		if (rpm->rpm_code == RPM_PCO_ADD)
166 		if (ioctl(s, rrcmd2pco[rpm->rpm_code], (caddr_t)irr) < 0 &&
173 	for (rpu = (struct rr_pco_use *)(rpm + 1),
174 	     rpulim = (struct rr_pco_use *)((char *)rpm + len);
202 		if (ioctl(s, rrcmd2pco[rpm->rpm_code], (caddr_t)irr) < 0 &&
208 		if (rpm->rpm_code == RPM_PCO_CHANGE &&
209 		    IN6_ARE_ADDR_EQUAL(&rpm->rpm_prefix, &rpu->rpu_prefix) &&
210 		    rpm->rpm_matchlen == rpu->rpu_uselen &&
221 				    pfx->pfx_prefixlen, &rpm->rpm_prefix,
222 				    rpm->rpm_matchlen)) {
255 do_pco(struct icmp6_router_renum *rr, int len, struct rr_pco_match *rpm)
261 	if ((rr_pco_check(len, rpm) != 0))
272 	irr.irr_m_len = rpm->rpm_matchlen;
273 	irr.irr_m_minlen = rpm->rpm_minlen;
274 	irr.irr_m_maxlen = rpm->rpm_maxlen;
277 	irr.irr_matchprefix.sin6_addr = rpm->rpm_prefix;
294 		do_use_prefix(len, rpm, &irr, ifindex);
314 	struct rr_pco_match *rpm;
326 		rpm = (struct rr_pco_match *)cp;
333 		rpmlen = rpm->rpm_len << 3;
337 		if (do_pco(rr, rpmlen, rpm)) {