Annotation of embedaddon/bird2/proto/radv/config.Y, revision 1.1
1.1 ! misho 1: /*
! 2: * BIRD -- Router Advertisement Configuration
! 3: *
! 4: * (c) 2011--2019 Ondrej Zajicek <santiago@crfreenet.org>
! 5: * (c) 2011--2019 CZ.NIC z.s.p.o.
! 6: *
! 7: * Can be freely distributed and used under the terms of the GNU GPL.
! 8: */
! 9:
! 10: CF_HDR
! 11:
! 12: #include "proto/radv/radv.h"
! 13:
! 14: CF_DEFINES
! 15:
! 16: #define RADV_CFG ((struct radv_config *) this_proto)
! 17: #define RADV_IFACE ((struct radv_iface_config *) this_ipatt)
! 18: #define RADV_PREFIX this_radv_prefix
! 19: #define RADV_RDNSS (&this_radv_rdnss)
! 20: #define RADV_DNSSL (&this_radv_dnssl)
! 21:
! 22: static struct radv_prefix_config *this_radv_prefix;
! 23: static struct radv_rdnss_config this_radv_rdnss;
! 24: static struct radv_dnssl_config this_radv_dnssl;
! 25: static list radv_dns_list; /* Used by radv_rdnss and radv_dnssl */
! 26: static u8 radv_mult_val; /* Used by radv_mult for second return value */
! 27:
! 28:
! 29: CF_DECLS
! 30:
! 31: CF_KEYWORDS(RADV, PREFIX, INTERFACE, MIN, MAX, RA, DELAY, INTERVAL, SOLICITED,
! 32: UNICAST, MANAGED, OTHER, CONFIG, LINGER, LINK, MTU, REACHABLE, TIME,
! 33: RETRANS, TIMER, CURRENT, HOP, LIMIT, DEFAULT, VALID, PREFERRED, MULT,
! 34: LIFETIME, SKIP, ONLINK, AUTONOMOUS, RDNSS, DNSSL, NS, DOMAIN, LOCAL,
! 35: TRIGGER, SENSITIVE, PREFERENCE, LOW, MEDIUM, HIGH, PROPAGATE, ROUTE,
! 36: ROUTES, RA_PREFERENCE, RA_LIFETIME)
! 37:
! 38: CF_ENUM(T_ENUM_RA_PREFERENCE, RA_PREF_, LOW, MEDIUM, HIGH)
! 39:
! 40: %type<i> radv_mult radv_sensitive radv_preference
! 41:
! 42: CF_GRAMMAR
! 43:
! 44: proto: radv_proto ;
! 45:
! 46: radv_proto_start: proto_start RADV
! 47: {
! 48: this_proto = proto_config_new(&proto_radv, $1);
! 49:
! 50: init_list(&RADV_CFG->patt_list);
! 51: init_list(&RADV_CFG->pref_list);
! 52: init_list(&RADV_CFG->rdnss_list);
! 53: init_list(&RADV_CFG->dnssl_list);
! 54: };
! 55:
! 56: radv_proto_item:
! 57: proto_item
! 58: | proto_channel
! 59: | INTERFACE radv_iface
! 60: | PREFIX radv_prefix { add_tail(&RADV_CFG->pref_list, NODE this_radv_prefix); }
! 61: | RDNSS { init_list(&radv_dns_list); } radv_rdnss { add_tail_list(&RADV_CFG->rdnss_list, &radv_dns_list); }
! 62: | DNSSL { init_list(&radv_dns_list); } radv_dnssl { add_tail_list(&RADV_CFG->dnssl_list, &radv_dns_list); }
! 63: | TRIGGER net_ip6 { RADV_CFG->trigger = $2; }
! 64: | PROPAGATE ROUTES bool { RADV_CFG->propagate_routes = $3; }
! 65: ;
! 66:
! 67: radv_proto_opts:
! 68: /* empty */
! 69: | radv_proto_opts radv_proto_item ';'
! 70: ;
! 71:
! 72: radv_proto:
! 73: radv_proto_start proto_name '{' radv_proto_opts '}';
! 74:
! 75:
! 76: radv_iface_start:
! 77: {
! 78: this_ipatt = cfg_allocz(sizeof(struct radv_iface_config));
! 79: add_tail(&RADV_CFG->patt_list, NODE this_ipatt);
! 80: init_list(&this_ipatt->ipn_list);
! 81: init_list(&RADV_IFACE->pref_list);
! 82: init_list(&RADV_IFACE->rdnss_list);
! 83: init_list(&RADV_IFACE->dnssl_list);
! 84:
! 85: RADV_IFACE->min_ra_int = (u32) -1; /* undefined */
! 86: RADV_IFACE->max_ra_int = DEFAULT_MAX_RA_INT;
! 87: RADV_IFACE->min_delay = DEFAULT_MIN_DELAY;
! 88: RADV_IFACE->prefix_linger_time = (u32) -1;
! 89: RADV_IFACE->route_linger_time = (u32) -1;
! 90: RADV_IFACE->current_hop_limit = DEFAULT_CURRENT_HOP_LIMIT;
! 91: RADV_IFACE->default_lifetime = (u32) -1;
! 92: RADV_IFACE->default_lifetime_sensitive = 1;
! 93: RADV_IFACE->default_preference = RA_PREF_MEDIUM;
! 94: RADV_IFACE->route_lifetime = (u32) -1;
! 95: RADV_IFACE->route_lifetime_sensitive = 0;
! 96: RADV_IFACE->route_preference = RA_PREF_MEDIUM;
! 97: };
! 98:
! 99: radv_iface_item:
! 100: MIN RA INTERVAL expr { RADV_IFACE->min_ra_int = $4; if ($4 < 3) cf_error("Min RA interval must be at least 3"); }
! 101: | MAX RA INTERVAL expr { RADV_IFACE->max_ra_int = $4; if (($4 < 4) || ($4 > 1800)) cf_error("Max RA interval must be in range 4-1800"); }
! 102: | MIN DELAY expr { RADV_IFACE->min_delay = $3; if ($3 <= 0) cf_error("Min delay must be positive"); }
! 103: | SOLICITED RA UNICAST bool { RADV_IFACE->solicited_ra_unicast = $4; }
! 104: | MANAGED bool { RADV_IFACE->managed = $2; }
! 105: | OTHER CONFIG bool { RADV_IFACE->other_config = $3; }
! 106: | LINK MTU expr { RADV_IFACE->link_mtu = $3; }
! 107: | REACHABLE TIME expr { RADV_IFACE->reachable_time = $3; if ($3 > 3600000) cf_error("Reachable time must be in range 0-3600000"); }
! 108: | RETRANS TIMER expr { RADV_IFACE->retrans_timer = $3; }
! 109: | CURRENT HOP LIMIT expr { RADV_IFACE->current_hop_limit = $4; if ($4 > 255) cf_error("Current hop limit must be in range 0-255"); }
! 110: | DEFAULT LIFETIME expr radv_sensitive {
! 111: RADV_IFACE->default_lifetime = $3;
! 112: if ($3 > 9000) cf_error("Default lifetime must be in range 0-9000");
! 113: if ($4 != (uint) -1) RADV_IFACE->default_lifetime_sensitive = $4;
! 114: }
! 115: | ROUTE LIFETIME expr radv_sensitive {
! 116: RADV_IFACE->route_lifetime = $3;
! 117: if ($4 != (uint) -1) RADV_IFACE->route_lifetime_sensitive = $4;
! 118: }
! 119: | DEFAULT PREFERENCE radv_preference { RADV_IFACE->default_preference = $3; }
! 120: | ROUTE PREFERENCE radv_preference { RADV_IFACE->route_preference = $3; }
! 121: | PREFIX LINGER TIME expr { RADV_IFACE->prefix_linger_time = $4; }
! 122: | ROUTE LINGER TIME expr { RADV_IFACE->route_linger_time = $4; }
! 123: | PREFIX radv_prefix { add_tail(&RADV_IFACE->pref_list, NODE this_radv_prefix); }
! 124: | RDNSS { init_list(&radv_dns_list); } radv_rdnss { add_tail_list(&RADV_IFACE->rdnss_list, &radv_dns_list); }
! 125: | DNSSL { init_list(&radv_dns_list); } radv_dnssl { add_tail_list(&RADV_IFACE->dnssl_list, &radv_dns_list); }
! 126: | RDNSS LOCAL bool { RADV_IFACE->rdnss_local = $3; }
! 127: | DNSSL LOCAL bool { RADV_IFACE->dnssl_local = $3; }
! 128: ;
! 129:
! 130: radv_preference:
! 131: LOW { $$ = RA_PREF_LOW; }
! 132: | MEDIUM { $$ = RA_PREF_MEDIUM; }
! 133: | HIGH { $$ = RA_PREF_HIGH; }
! 134:
! 135: radv_iface_finish:
! 136: {
! 137: struct radv_iface_config *ic = RADV_IFACE;
! 138:
! 139: if (ic->min_ra_int == (u32) -1)
! 140: ic->min_ra_int = MAX_(ic->max_ra_int / 3, 3);
! 141:
! 142: if (ic->default_lifetime == (u32) -1)
! 143: ic->default_lifetime = 3 * ic->max_ra_int;
! 144:
! 145: if (ic->route_lifetime == (u32) -1)
! 146: ic->route_lifetime = 3 * ic->max_ra_int;
! 147:
! 148: if (ic->prefix_linger_time == (u32) -1)
! 149: ic->prefix_linger_time = 3 * ic->max_ra_int;
! 150:
! 151: if (ic->route_linger_time == (u32) -1)
! 152: ic->route_linger_time = 3 * ic->max_ra_int;
! 153:
! 154: if ((ic->min_ra_int > 3) &&
! 155: (ic->min_ra_int > (ic->max_ra_int * 3 / 4)))
! 156: cf_error("Min RA interval must be at most 3/4 * Max RA interval");
! 157:
! 158: if ((ic->default_lifetime > 0) && (ic->default_lifetime < ic->max_ra_int))
! 159: cf_error("Default lifetime must be either 0 or at least Max RA interval");
! 160:
! 161: if ((ic->route_lifetime > 0) && (ic->route_lifetime < ic->max_ra_int))
! 162: cf_error("Route lifetime must be either 0 or at least Max RA interval");
! 163:
! 164: if ((ic->prefix_linger_time > 0) && (ic->prefix_linger_time < ic->max_ra_int))
! 165: cf_error("Prefix linger time must be either 0 or at least Max RA interval");
! 166:
! 167: if ((ic->route_linger_time > 0) && (ic->route_linger_time < ic->max_ra_int))
! 168: cf_error("Route linger time must be either 0 or at least Max RA interval");
! 169:
! 170: RADV_CFG->max_linger_time = MAX_(RADV_CFG->max_linger_time, ic->route_linger_time);
! 171: };
! 172:
! 173:
! 174: radv_iface_opts:
! 175: /* empty */
! 176: | radv_iface_opts radv_iface_item ';'
! 177: ;
! 178:
! 179: radv_iface_opt_list:
! 180: /* empty */
! 181: | '{' radv_iface_opts '}'
! 182: ;
! 183:
! 184: radv_iface:
! 185: radv_iface_start iface_patt_list_nopx radv_iface_opt_list radv_iface_finish;
! 186:
! 187:
! 188: radv_prefix_start: net_ip6
! 189: {
! 190: this_radv_prefix = cfg_allocz(sizeof(struct radv_prefix_config));
! 191: RADV_PREFIX->prefix = *(net_addr_ip6 *) &($1);
! 192:
! 193: RADV_PREFIX->onlink = 1;
! 194: RADV_PREFIX->autonomous = 1;
! 195: RADV_PREFIX->valid_lifetime = DEFAULT_VALID_LIFETIME;
! 196: RADV_PREFIX->preferred_lifetime = DEFAULT_PREFERRED_LIFETIME;
! 197: };
! 198:
! 199: radv_prefix_item:
! 200: SKIP bool { RADV_PREFIX->skip = $2; }
! 201: | ONLINK bool { RADV_PREFIX->onlink = $2; }
! 202: | AUTONOMOUS bool { RADV_PREFIX->autonomous = $2; }
! 203: | VALID LIFETIME expr radv_sensitive {
! 204: RADV_PREFIX->valid_lifetime = $3;
! 205: if ($4 != (uint) -1) RADV_PREFIX->valid_lifetime_sensitive = $4;
! 206: }
! 207: | PREFERRED LIFETIME expr radv_sensitive {
! 208: RADV_PREFIX->preferred_lifetime = $3;
! 209: if ($4 != (uint) -1) RADV_PREFIX->preferred_lifetime_sensitive = $4;
! 210: }
! 211: ;
! 212:
! 213: radv_prefix_finish:
! 214: {
! 215: if (RADV_PREFIX->preferred_lifetime > RADV_PREFIX->valid_lifetime)
! 216: cf_error("Preferred lifetime must be at most Valid lifetime");
! 217:
! 218: if (RADV_PREFIX->valid_lifetime_sensitive > RADV_PREFIX->preferred_lifetime_sensitive)
! 219: cf_error("Valid lifetime sensitive requires that Preferred lifetime is sensitive too");
! 220: };
! 221:
! 222: radv_prefix_opts:
! 223: /* empty */
! 224: | radv_prefix_opts radv_prefix_item ';'
! 225: ;
! 226:
! 227: radv_prefix_opt_list:
! 228: /* empty */
! 229: | '{' radv_prefix_opts '}'
! 230: ;
! 231:
! 232: radv_prefix:
! 233: radv_prefix_start radv_prefix_opt_list radv_prefix_finish;
! 234:
! 235:
! 236:
! 237: radv_rdnss_node: ipa
! 238: {
! 239: struct radv_rdnss_config *cf = cfg_allocz(sizeof(struct radv_rdnss_config));
! 240: add_tail(&radv_dns_list, NODE cf);
! 241:
! 242: cf->server = $1;
! 243: cf->lifetime_mult = DEFAULT_DNS_LIFETIME_MULT;
! 244: };
! 245:
! 246: radv_rdnss_start:
! 247: {
! 248: RADV_RDNSS->lifetime = 0;
! 249: RADV_RDNSS->lifetime_mult = DEFAULT_DNS_LIFETIME_MULT;
! 250: };
! 251:
! 252: radv_rdnss_item:
! 253: | NS radv_rdnss_node
! 254: | LIFETIME radv_mult { RADV_RDNSS->lifetime = $2; RADV_RDNSS->lifetime_mult = radv_mult_val; }
! 255: ;
! 256:
! 257: radv_rdnss_finish:
! 258: {
! 259: if (EMPTY_LIST(radv_dns_list))
! 260: cf_error("No nameserver in RDNSS section");
! 261:
! 262: struct radv_rdnss_config *cf;
! 263: WALK_LIST(cf, radv_dns_list)
! 264: {
! 265: cf->lifetime = RADV_RDNSS->lifetime;
! 266: cf->lifetime_mult = RADV_RDNSS->lifetime_mult;
! 267: }
! 268: };
! 269:
! 270: radv_rdnss_opts:
! 271: /* empty */
! 272: | radv_rdnss_opts radv_rdnss_item ';'
! 273: ;
! 274:
! 275: radv_rdnss:
! 276: radv_rdnss_node
! 277: | '{' radv_rdnss_start radv_rdnss_opts '}' radv_rdnss_finish
! 278: ;
! 279:
! 280:
! 281: radv_dnssl_node: TEXT
! 282: {
! 283: struct radv_dnssl_config *cf = cfg_allocz(sizeof(struct radv_dnssl_config));
! 284: add_tail(&radv_dns_list, NODE cf);
! 285:
! 286: cf->domain = $1;
! 287: cf->lifetime_mult = DEFAULT_DNS_LIFETIME_MULT;
! 288:
! 289: if (radv_process_domain(cf) < 0)
! 290: cf_error("Invalid domain dame");
! 291: };
! 292:
! 293: radv_dnssl_start:
! 294: {
! 295: RADV_DNSSL->lifetime = 0;
! 296: RADV_DNSSL->lifetime_mult = DEFAULT_DNS_LIFETIME_MULT;
! 297: };
! 298:
! 299: radv_dnssl_item:
! 300: | DOMAIN radv_dnssl_node
! 301: | LIFETIME radv_mult { RADV_DNSSL->lifetime = $2; RADV_DNSSL->lifetime_mult = radv_mult_val; }
! 302: ;
! 303:
! 304: radv_dnssl_finish:
! 305: {
! 306: if (EMPTY_LIST(radv_dns_list))
! 307: cf_error("No domain in DNSSL section");
! 308:
! 309: struct radv_dnssl_config *cf;
! 310: WALK_LIST(cf, radv_dns_list)
! 311: {
! 312: cf->lifetime = RADV_DNSSL->lifetime;
! 313: cf->lifetime_mult = RADV_DNSSL->lifetime_mult;
! 314: }
! 315: };
! 316:
! 317: radv_dnssl_opts:
! 318: /* empty */
! 319: | radv_dnssl_opts radv_dnssl_item ';'
! 320: ;
! 321:
! 322: radv_dnssl:
! 323: radv_dnssl_node
! 324: | '{' radv_dnssl_start radv_dnssl_opts '}' radv_dnssl_finish
! 325: ;
! 326:
! 327:
! 328: radv_mult:
! 329: expr { $$ = $1; radv_mult_val = 0; }
! 330: | MULT expr { $$ = 0; radv_mult_val = $2; if (($2 < 1) || ($2 > 254)) cf_error("Multiplier must be in range 1-254"); }
! 331: ;
! 332:
! 333: radv_sensitive:
! 334: /* empty */ { $$ = (uint) -1; }
! 335: | SENSITIVE bool { $$ = $2; }
! 336: ;
! 337:
! 338: dynamic_attr: RA_PREFERENCE { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_ENUM_RA_PREFERENCE, EA_RA_PREFERENCE); } ;
! 339: dynamic_attr: RA_LIFETIME { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_RA_LIFETIME); } ;
! 340:
! 341: CF_CODE
! 342:
! 343: CF_END
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