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