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1.1 ! misho 1: /* ! 2: * BIRD -- Static Protocol Configuration ! 3: * ! 4: * (c) 1998--1999 Martin Mares <mj@ucw.cz> ! 5: * ! 6: * Can be freely distributed and used under the terms of the GNU GPL. ! 7: */ ! 8: ! 9: CF_HDR ! 10: ! 11: #include "proto/static/static.h" ! 12: ! 13: CF_DEFINES ! 14: ! 15: #define STATIC_CFG ((struct static_config *) this_proto) ! 16: static struct static_route *this_srt, *this_srt_nh, *last_srt_nh; ! 17: static struct f_inst **this_srt_last_cmd; ! 18: ! 19: static void ! 20: static_route_finish(void) ! 21: { ! 22: struct static_route *r; ! 23: ! 24: /* Update undefined use_bfd entries in multipath nexthops */ ! 25: if (this_srt->dest == RTD_MULTIPATH) ! 26: for (r = this_srt->mp_next; r; r = r->mp_next) ! 27: if (r->use_bfd < 0) ! 28: r->use_bfd = this_srt->use_bfd; ! 29: } ! 30: ! 31: CF_DECLS ! 32: ! 33: CF_KEYWORDS(STATIC, ROUTE, VIA, DROP, REJECT, PROHIBIT, PREFERENCE, CHECK, LINK) ! 34: CF_KEYWORDS(MULTIPATH, WEIGHT, RECURSIVE, IGP, TABLE, BLACKHOLE, UNREACHABLE, BFD) ! 35: ! 36: ! 37: CF_GRAMMAR ! 38: ! 39: CF_ADDTO(proto, static_proto '}') ! 40: ! 41: static_proto_start: proto_start STATIC { ! 42: this_proto = proto_config_new(&proto_static, $1); ! 43: static_init_config((struct static_config *) this_proto); ! 44: } ! 45: ; ! 46: ! 47: static_proto: ! 48: static_proto_start proto_name '{' ! 49: | static_proto proto_item ';' ! 50: | static_proto CHECK LINK bool ';' { STATIC_CFG->check_link = $4; } ! 51: | static_proto IGP TABLE rtable ';' { STATIC_CFG->igp_table = $4; } ! 52: | static_proto stat_route stat_route_opt_list ';' { static_route_finish(); } ! 53: ; ! 54: ! 55: stat_route0: ROUTE prefix { ! 56: this_srt = cfg_allocz(sizeof(struct static_route)); ! 57: add_tail(&STATIC_CFG->other_routes, &this_srt->n); ! 58: this_srt->net = $2.addr; ! 59: this_srt->masklen = $2.len; ! 60: this_srt_last_cmd = &(this_srt->cmds); ! 61: } ! 62: ; ! 63: ! 64: stat_multipath1: ! 65: VIA ipa ipa_scope { ! 66: last_srt_nh = this_srt_nh; ! 67: this_srt_nh = cfg_allocz(sizeof(struct static_route)); ! 68: this_srt_nh->dest = RTD_NONE; ! 69: this_srt_nh->via = $2; ! 70: this_srt_nh->via_if = $3; ! 71: this_srt_nh->if_name = (void *) this_srt; /* really */ ! 72: this_srt_nh->use_bfd = -1; /* undefined */ ! 73: } ! 74: | stat_multipath1 WEIGHT expr { ! 75: this_srt_nh->masklen = $3 - 1; /* really */ ! 76: if (($3<1) || ($3>256)) cf_error("Weight must be in range 1-256"); ! 77: } ! 78: | stat_multipath1 BFD bool { ! 79: this_srt_nh->use_bfd = $3; cf_check_bfd($3); ! 80: } ! 81: ; ! 82: ! 83: stat_multipath: ! 84: stat_multipath1 { this_srt->mp_next = this_srt_nh; } ! 85: | stat_multipath stat_multipath1 { last_srt_nh->mp_next = this_srt_nh; } ! 86: ; ! 87: ! 88: stat_route: ! 89: stat_route0 VIA ipa ipa_scope { ! 90: this_srt->dest = RTD_ROUTER; ! 91: this_srt->via = $3; ! 92: this_srt->via_if = $4; ! 93: } ! 94: | stat_route0 VIA TEXT { ! 95: this_srt->dest = RTD_DEVICE; ! 96: this_srt->if_name = $3; ! 97: rem_node(&this_srt->n); ! 98: add_tail(&STATIC_CFG->iface_routes, &this_srt->n); ! 99: } ! 100: | stat_route0 MULTIPATH stat_multipath { ! 101: this_srt->dest = RTD_MULTIPATH; ! 102: } ! 103: | stat_route0 RECURSIVE ipa { ! 104: this_srt->dest = RTDX_RECURSIVE; ! 105: this_srt->via = $3; ! 106: } ! 107: ! 108: | stat_route0 DROP { this_srt->dest = RTD_BLACKHOLE; } ! 109: | stat_route0 REJECT { this_srt->dest = RTD_UNREACHABLE; } ! 110: | stat_route0 BLACKHOLE { this_srt->dest = RTD_BLACKHOLE; } ! 111: | stat_route0 UNREACHABLE { this_srt->dest = RTD_UNREACHABLE; } ! 112: | stat_route0 PROHIBIT { this_srt->dest = RTD_PROHIBIT; } ! 113: ; ! 114: ! 115: stat_route_item: ! 116: cmd { *this_srt_last_cmd = $1; this_srt_last_cmd = &($1->next); } ! 117: | BFD bool ';' { this_srt->use_bfd = $2; cf_check_bfd($2); } ! 118: ; ! 119: ! 120: stat_route_opts: ! 121: /* empty */ ! 122: | stat_route_opts stat_route_item ! 123: ; ! 124: ! 125: stat_route_opt_list: ! 126: /* empty */ ! 127: | '{' stat_route_opts '}' ! 128: ; ! 129: ! 130: ! 131: CF_CLI(SHOW STATIC, optsym, [<name>], [[Show details of static protocol]]) ! 132: { static_show(proto_get_named($3, &proto_static)); } ; ! 133: ! 134: CF_CODE ! 135: ! 136: CF_END