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Commit | Line | Data |
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f62a369f JMM |
1 | /* |
2 | * Filters: Instructions themselves | |
3 | * | |
4 | * Copyright 1998 Pavel Machek <pavel@ucw.cz> | |
5 | * Copyright 2018 Maria Matejka <mq@jmq.cz> | |
6 | * Copyright 2018 CZ.NIC z.s.p.o. | |
7 | * | |
8 | * Can be freely distributed and used under the terms of the GNU GPL. | |
9 | * | |
e1ac6f1e MM |
10 | * Filter instructions. You shall define your instruction only here |
11 | * and nowhere else. | |
12 | * | |
13 | * Beware. This file is interpreted by M4 macros. These macros | |
14 | * may be more stupid than you could imagine. If something strange | |
15 | * happens after changing this file, compare the results before and | |
16 | * after your change (see the Makefile to find out where the results are) | |
17 | * and see what really happened. | |
18 | * | |
19 | * This file is not directly a C source code -> it is a generator input | |
20 | * for several C sources; every instruction block gets expanded into many | |
21 | * different places. | |
22 | * | |
26bfe59f MM |
23 | * All the arguments are processed literally; if you need an argument including comma, |
24 | * you have to quote it by [[ ... ]] | |
25 | * | |
e1ac6f1e MM |
26 | * What is the syntax here? |
27 | * m4_dnl INST(FI_NOP, in, out) { enum value, input args, output args | |
28 | * m4_dnl ARG(num, type); argument, its id (in data fields) and type | |
29 | * m4_dnl ARG_ANY(num); argument with no type check | |
30 | * m4_dnl LINE(num, unused); this argument has to be converted to its own f_line | |
63f49457 | 31 | * m4_dnl SYMBOL; symbol handed from config |
e1ac6f1e MM |
32 | * m4_dnl STATIC_ATTR; static attribute definition |
33 | * m4_dnl DYNAMIC_ATTR; dynamic attribute definition | |
34 | * m4_dnl RTC; route table config | |
e1ac6f1e MM |
35 | * m4_dnl ACCESS_RTE; this instruction needs route |
36 | * m4_dnl ACCESS_EATTRS; this instruction needs extended attributes | |
26bfe59f MM |
37 | * |
38 | * m4_dnl FID_MEMBER( custom instruction member | |
39 | * m4_dnl C type, for storage in structs | |
40 | * m4_dnl name in f_inst, how the member is named before linearization | |
41 | * m4_dnl name in f_line_item, how the member is named afterwards | |
30667d50 | 42 | * m4_dnl comparator for same(), if different, this should be TRUE (CAVEAT) |
26bfe59f MM |
43 | * m4_dnl dump format string debug -> format string for bvsnprintf |
44 | * m4_dnl dump format args appropriate args | |
45 | * m4_dnl interpreter body how to deal with this on execution | |
46 | * m4_dnl ) | |
47 | * | |
e1ac6f1e | 48 | * m4_dnl RESULT(type, union-field, value); putting this on value stack |
f74d1976 MM |
49 | * m4_dnl RESULT_VAL(value-struct); pass the struct f_val directly |
50 | * m4_dnl RESULT_VOID; return undef | |
e1ac6f1e MM |
51 | * m4_dnl } |
52 | * | |
53 | * Other code is just copied into the interpreter part. | |
54 | * | |
55 | * If you want to write something really special, see FI_CALL | |
56 | * or FI_CONSTANT or whatever else to see how to use the FID_* | |
57 | * macros. | |
f62a369f JMM |
58 | */ |
59 | ||
60 | /* Binary operators */ | |
4c553c5a MM |
61 | INST(FI_ADD, 2, 1) { |
62 | ARG(1,T_INT); | |
63 | ARG(2,T_INT); | |
f74d1976 | 64 | RESULT(T_INT, i, v1.val.i + v2.val.i); |
4c553c5a MM |
65 | } |
66 | INST(FI_SUBTRACT, 2, 1) { | |
67 | ARG(1,T_INT); | |
68 | ARG(2,T_INT); | |
f74d1976 | 69 | RESULT(T_INT, i, v1.val.i - v2.val.i); |
4c553c5a MM |
70 | } |
71 | INST(FI_MULTIPLY, 2, 1) { | |
72 | ARG(1,T_INT); | |
73 | ARG(2,T_INT); | |
f74d1976 | 74 | RESULT(T_INT, i, v1.val.i * v2.val.i); |
4c553c5a MM |
75 | } |
76 | INST(FI_DIVIDE, 2, 1) { | |
77 | ARG(1,T_INT); | |
78 | ARG(2,T_INT); | |
79 | if (v2.val.i == 0) runtime( "Mother told me not to divide by 0" ); | |
f74d1976 | 80 | RESULT(T_INT, i, v1.val.i / v2.val.i); |
4c553c5a MM |
81 | } |
82 | INST(FI_AND, 1, 1) { | |
83 | ARG(1,T_BOOL); | |
f74d1976 | 84 | if (v1.val.i) |
4c553c5a MM |
85 | LINE(2,0); |
86 | else | |
f74d1976 | 87 | RESULT_VAL(v1); |
967b88d9 | 88 | } |
4c553c5a MM |
89 | INST(FI_OR, 1, 1) { |
90 | ARG(1,T_BOOL); | |
f74d1976 | 91 | if (!v1.val.i) |
4c553c5a MM |
92 | LINE(2,0); |
93 | else | |
f74d1976 | 94 | RESULT_VAL(v1); |
967b88d9 | 95 | } |
4c553c5a | 96 | INST(FI_PAIR_CONSTRUCT, 2, 1) { |
f62a369f JMM |
97 | ARG(1,T_INT); |
98 | ARG(2,T_INT); | |
4c553c5a MM |
99 | uint u1 = v1.val.i; |
100 | uint u2 = v2.val.i; | |
f62a369f JMM |
101 | if ((u1 > 0xFFFF) || (u2 > 0xFFFF)) |
102 | runtime( "Can't operate with value out of bounds in pair constructor" ); | |
4c553c5a | 103 | RESULT(T_PAIR, i, (u1 << 16) | u2); |
967b88d9 | 104 | } |
4c553c5a MM |
105 | INST(FI_EC_CONSTRUCT, 2, 1) { |
106 | ARG_ANY(1); | |
107 | ARG(2, T_INT); | |
26bfe59f MM |
108 | |
109 | FID_MEMBER(enum ec_subtype, ecs, ecs, f1->ecs != f2->ecs, ec subtype %s, ec_subtype_str(item->ecs), enum ec_subtype ecs = whati->ecs); | |
f62a369f | 110 | |
4c553c5a MM |
111 | int check, ipv4_used; |
112 | u32 key, val; | |
f62a369f | 113 | |
4c553c5a MM |
114 | if (v1.type == T_INT) { |
115 | ipv4_used = 0; key = v1.val.i; | |
116 | } | |
117 | else if (v1.type == T_QUAD) { | |
118 | ipv4_used = 1; key = v1.val.i; | |
119 | } | |
120 | /* IP->Quad implicit conversion */ | |
121 | else if (val_is_ip4(&v1)) { | |
122 | ipv4_used = 1; key = ipa_to_u32(v1.val.ip); | |
123 | } | |
124 | else | |
125 | runtime("Argument 1 of instruction FI_EC_CONSTRUCT must be integer or IPv4 address, got 0x%02x"); | |
f62a369f | 126 | |
4c553c5a | 127 | val = v2.val.i; |
f62a369f | 128 | |
4c553c5a MM |
129 | if (ecs == EC_GENERIC) { |
130 | check = 0; RESULT(T_EC, ec, ec_generic(key, val)); | |
131 | } | |
132 | else if (ipv4_used) { | |
133 | check = 1; RESULT(T_EC, ec, ec_ip4(ecs, key, val)); | |
967b88d9 | 134 | } |
4c553c5a MM |
135 | else if (key < 0x10000) { |
136 | check = 0; RESULT(T_EC, ec, ec_as2(ecs, key, val)); | |
137 | } | |
138 | else { | |
139 | check = 1; RESULT(T_EC, ec, ec_as4(ecs, key, val)); | |
f62a369f JMM |
140 | } |
141 | ||
4c553c5a MM |
142 | if (check && (val > 0xFFFF)) |
143 | runtime("Value %u > %u out of bounds in EC constructor", val, 0xFFFF); | |
144 | } | |
f62a369f | 145 | |
4c553c5a MM |
146 | INST(FI_LC_CONSTRUCT, 3, 1) { |
147 | ARG(1, T_INT); | |
148 | ARG(2, T_INT); | |
149 | ARG(3, T_INT); | |
150 | RESULT(T_LC, lc, [[(lcomm) { v1.val.i, v2.val.i, v3.val.i }]]); | |
151 | } | |
f62a369f | 152 | |
4c553c5a MM |
153 | INST(FI_PATHMASK_CONSTRUCT, 0, 1) { |
154 | ARG_ANY(1); | |
26bfe59f | 155 | FID_MEMBER(uint, count, count, f1->count != f2->count, number of items %u, item->count); |
9b46748d | 156 | |
4f082dfa MM |
157 | FID_NEW_BODY |
158 | uint len = 0; | |
159 | uint dyn = 0; | |
160 | for (const struct f_inst *tt = f1; tt; tt = tt->next, len++) | |
161 | if (tt->fi_code != FI_CONSTANT) | |
162 | dyn++; | |
9b46748d | 163 | |
63f49457 | 164 | whati->count = len; |
d1039926 | 165 | FID_ALL |
9b46748d | 166 | |
1757a6fc | 167 | if (fstk->vcnt < whati->count) /* TODO: make this check systematic */ |
ea4f55e3 | 168 | runtime("Construction of BGP path mask from %u elements must have at least that number of elements", whati->count); |
4c553c5a | 169 | |
ea4f55e3 MM |
170 | struct f_path_mask *pm = lp_alloc(fs->pool, sizeof(struct f_path_mask) + whati->count * sizeof(struct f_path_mask_item)); |
171 | for (uint i=0; i<whati->count; i++) { | |
1757a6fc | 172 | #define pv fstk->vstk[fstk->vcnt - whati->count + i] |
4c553c5a MM |
173 | switch (pv.type) { |
174 | case T_PATH_MASK_ITEM: | |
175 | pm->item[i] = pv.val.pmi; | |
176 | break; | |
177 | case T_INT: | |
178 | pm->item[i] = (struct f_path_mask_item) { | |
179 | .asn = pv.val.i, | |
180 | .kind = PM_ASN, | |
181 | }; | |
182 | break; | |
183 | default: | |
184 | runtime( "Error resolving path mask template: value not an integer" ); | |
185 | } | |
f62a369f JMM |
186 | } |
187 | ||
1757a6fc | 188 | fstk->vcnt -= whati->count; |
ea4f55e3 | 189 | pm->len = whati->count; |
f62a369f | 190 | |
4c553c5a MM |
191 | RESULT(T_PATH_MASK, path_mask, pm); |
192 | } | |
f62a369f JMM |
193 | |
194 | /* Relational operators */ | |
195 | ||
4c553c5a | 196 | INST(FI_NEQ, 2, 1) { |
c5774939 MM |
197 | ARG_ANY(1); |
198 | ARG_ANY(2); | |
4c553c5a | 199 | RESULT(T_BOOL, i, !val_same(&v1, &v2)); |
967b88d9 | 200 | } |
f62a369f | 201 | |
4c553c5a | 202 | INST(FI_EQ, 2, 1) { |
c5774939 MM |
203 | ARG_ANY(1); |
204 | ARG_ANY(2); | |
4c553c5a | 205 | RESULT(T_BOOL, i, val_same(&v1, &v2)); |
967b88d9 | 206 | } |
c5774939 | 207 | |
4c553c5a | 208 | INST(FI_LT, 2, 1) { |
c5774939 MM |
209 | ARG_ANY(1); |
210 | ARG_ANY(2); | |
4c553c5a | 211 | int i = val_compare(&v1, &v2); |
52893045 | 212 | if (i == F_CMP_ERROR) |
c5774939 | 213 | runtime( "Can't compare values of incompatible types" ); |
4c553c5a | 214 | RESULT(T_BOOL, i, (i == -1)); |
967b88d9 | 215 | } |
f62a369f | 216 | |
4c553c5a | 217 | INST(FI_LTE, 2, 1) { |
c5774939 MM |
218 | ARG_ANY(1); |
219 | ARG_ANY(2); | |
4c553c5a | 220 | int i = val_compare(&v1, &v2); |
52893045 | 221 | if (i == F_CMP_ERROR) |
c5774939 | 222 | runtime( "Can't compare values of incompatible types" ); |
4c553c5a | 223 | RESULT(T_BOOL, i, (i != 1)); |
967b88d9 | 224 | } |
f62a369f | 225 | |
4c553c5a MM |
226 | INST(FI_NOT, 1, 1) { |
227 | ARG(1,T_BOOL); | |
228 | RESULT(T_BOOL, i, !v1.val.i); | |
967b88d9 | 229 | } |
f62a369f | 230 | |
4c553c5a | 231 | INST(FI_MATCH, 2, 1) { |
f62a369f JMM |
232 | ARG_ANY(1); |
233 | ARG_ANY(2); | |
4c553c5a | 234 | int i = val_in_range(&v1, &v2); |
52893045 | 235 | if (i == F_CMP_ERROR) |
f62a369f | 236 | runtime( "~ applied on unknown type pair" ); |
4c553c5a | 237 | RESULT(T_BOOL, i, !!i); |
967b88d9 | 238 | } |
f62a369f | 239 | |
4c553c5a | 240 | INST(FI_NOT_MATCH, 2, 1) { |
f62a369f JMM |
241 | ARG_ANY(1); |
242 | ARG_ANY(2); | |
4c553c5a | 243 | int i = val_in_range(&v1, &v2); |
fe503c7c | 244 | if (i == F_CMP_ERROR) |
f62a369f | 245 | runtime( "!~ applied on unknown type pair" ); |
4c553c5a | 246 | RESULT(T_BOOL, i, !i); |
967b88d9 | 247 | } |
f62a369f | 248 | |
4c553c5a | 249 | INST(FI_DEFINED, 1, 1) { |
f62a369f | 250 | ARG_ANY(1); |
4c553c5a | 251 | RESULT(T_BOOL, i, (v1.type != T_VOID) && !undef_value(v1)); |
967b88d9 | 252 | } |
4c553c5a MM |
253 | |
254 | INST(FI_TYPE, 1, 1) { | |
f62a369f JMM |
255 | ARG_ANY(1); /* There may be more types supporting this operation */ |
256 | switch (v1.type) | |
257 | { | |
258 | case T_NET: | |
4c553c5a | 259 | RESULT(T_ENUM_NETTYPE, i, v1.val.net->type); |
f62a369f JMM |
260 | break; |
261 | default: | |
262 | runtime( "Can't determine type of this item" ); | |
263 | } | |
967b88d9 | 264 | } |
4c553c5a MM |
265 | |
266 | INST(FI_IS_V4, 1, 1) { | |
f62a369f | 267 | ARG(1, T_IP); |
4c553c5a | 268 | RESULT(T_BOOL, i, ipa_is_ip4(v1.val.ip)); |
967b88d9 | 269 | } |
f62a369f | 270 | |
4c553c5a | 271 | /* Set to indirect value prepared in v1 */ |
96d757c1 | 272 | INST(FI_VAR_SET, 1, 0) { |
63f49457 MM |
273 | ARG_ANY(1); |
274 | SYMBOL; | |
4c553c5a | 275 | if ((sym->class != (SYM_VARIABLE | v1.type)) && (v1.type != T_VOID)) |
f62a369f JMM |
276 | { |
277 | /* IP->Quad implicit conversion */ | |
4c553c5a | 278 | if ((sym->class == (SYM_VARIABLE | T_QUAD)) && val_is_ip4(&v1)) |
96d757c1 | 279 | v1 = (struct f_val) { |
4c553c5a MM |
280 | .type = T_QUAD, |
281 | .val.i = ipa_to_u32(v1.val.ip), | |
96d757c1 JMM |
282 | }; |
283 | else | |
284 | runtime( "Assigning to variable of incompatible type" ); | |
f62a369f | 285 | } |
96d757c1 | 286 | |
1757a6fc | 287 | fstk->vstk[curline.vbase + sym->offset] = v1; |
96d757c1 JMM |
288 | } |
289 | ||
290 | INST(FI_VAR_GET, 0, 1) { | |
26bfe59f | 291 | SYMBOL; |
f74d1976 | 292 | RESULT_VAL(fstk->vstk[curline.vbase + sym->offset]); |
967b88d9 | 293 | } |
f62a369f | 294 | |
7f0ac737 | 295 | /* some constants have value in a[1], some in *a[0].p, strange. */ |
4c553c5a | 296 | INST(FI_CONSTANT, 0, 1) { /* integer (or simple type) constant, string, set, or prefix_set */ |
30667d50 MM |
297 | FID_MEMBER( |
298 | struct f_val, | |
299 | val, | |
300 | val, | |
301 | [[ !val_same(&(f1->val), &(f2->val)) ]], | |
302 | value %s, | |
303 | val_dump(&(item->val)) | |
304 | ); | |
ea4f55e3 | 305 | |
63f49457 | 306 | RESULT_VAL(whati->val); |
967b88d9 | 307 | } |
4c553c5a | 308 | INST(FI_PRINT, 1, 0) { |
f62a369f | 309 | ARG_ANY(1); |
4c553c5a | 310 | val_format(&(v1), &fs->buf); |
967b88d9 | 311 | } |
4c553c5a MM |
312 | INST(FI_CONDITION, 1, 0) { |
313 | ARG(1, T_BOOL); | |
224b77d4 | 314 | if (res.val.i) |
4c553c5a | 315 | LINE(2,0); |
224b77d4 | 316 | else |
4c553c5a | 317 | LINE(3,1); |
967b88d9 | 318 | } |
4c553c5a | 319 | INST(FI_PRINT_AND_DIE, 0, 0) { |
23e3b1e6 | 320 | FID_LINEARIZE_BODY |
dd4d4095 MM |
321 | { |
322 | uint opos = pos; | |
d1039926 | 323 | FID_ALL |
9b46748d MM |
324 | |
325 | ARG_ANY(1); | |
326 | ||
23e3b1e6 | 327 | FID_LINEARIZE_BODY |
dd4d4095 MM |
328 | if (opos < pos) |
329 | dest->items[pos].flags |= FIF_PRINTED; | |
330 | } | |
d1039926 | 331 | FID_ALL |
4c553c5a | 332 | |
26bfe59f | 333 | FID_MEMBER(enum filter_return, fret, fret, f1->fret != f2->fret, %s, filter_return_str(item->fret), enum filter_return fret = whati->fret); |
4c553c5a MM |
334 | |
335 | if ((fret == F_NOP || (fret != F_NONL && (what->flags & FIF_PRINTED))) && | |
f62a369f JMM |
336 | !(fs->flags & FF_SILENT)) |
337 | log_commit(*L_INFO, &fs->buf); | |
338 | ||
4c553c5a | 339 | switch (fret) { |
f62a369f JMM |
340 | case F_QUITBIRD: |
341 | die( "Filter asked me to die" ); | |
342 | case F_ACCEPT: | |
343 | /* Should take care about turning ACCEPT into MODIFY */ | |
344 | case F_ERROR: | |
345 | case F_REJECT: /* FIXME (noncritical) Should print complete route along with reason to reject route */ | |
4c553c5a | 346 | return fret; /* We have to return now, no more processing. */ |
f62a369f JMM |
347 | case F_NONL: |
348 | case F_NOP: | |
349 | break; | |
350 | default: | |
351 | bug( "unknown return type: Can't happen"); | |
352 | } | |
967b88d9 | 353 | } |
4c553c5a MM |
354 | |
355 | INST(FI_RTA_GET, 0, 1) { /* rta access */ | |
f62a369f | 356 | { |
4c553c5a | 357 | STATIC_ATTR; |
f62a369f JMM |
358 | ACCESS_RTE; |
359 | struct rta *rta = (*fs->rte)->attrs; | |
f62a369f | 360 | |
4c553c5a | 361 | switch (sa.sa_code) |
f62a369f | 362 | { |
4c553c5a MM |
363 | case SA_FROM: RESULT(sa.f_type, ip, rta->from); break; |
364 | case SA_GW: RESULT(sa.f_type, ip, rta->nh.gw); break; | |
365 | case SA_NET: RESULT(sa.f_type, net, (*fs->rte)->net->n.addr); break; | |
366 | case SA_PROTO: RESULT(sa.f_type, s, rta->src->proto->name); break; | |
367 | case SA_SOURCE: RESULT(sa.f_type, i, rta->source); break; | |
368 | case SA_SCOPE: RESULT(sa.f_type, i, rta->scope); break; | |
369 | case SA_DEST: RESULT(sa.f_type, i, rta->dest); break; | |
370 | case SA_IFNAME: RESULT(sa.f_type, s, rta->nh.iface ? rta->nh.iface->name : ""); break; | |
371 | case SA_IFINDEX: RESULT(sa.f_type, i, rta->nh.iface ? rta->nh.iface->index : 0); break; | |
f62a369f JMM |
372 | |
373 | default: | |
4c553c5a | 374 | bug("Invalid static attribute access (%u/%u)", sa.f_type, sa.sa_code); |
f62a369f JMM |
375 | } |
376 | } | |
967b88d9 | 377 | } |
4c553c5a | 378 | |
a84b8b6e MM |
379 | INST(FI_RTA_SET, 1, 0) { |
380 | ACCESS_RTE; | |
381 | ARG_ANY(1); | |
382 | STATIC_ATTR; | |
383 | if (sa.f_type != v1.type) | |
384 | runtime( "Attempt to set static attribute to incompatible type" ); | |
385 | ||
386 | f_rta_cow(fs); | |
387 | { | |
388 | struct rta *rta = (*fs->rte)->attrs; | |
389 | ||
390 | switch (sa.sa_code) | |
391 | { | |
392 | case SA_FROM: | |
393 | rta->from = v1.val.ip; | |
394 | break; | |
395 | ||
396 | case SA_GW: | |
397 | { | |
398 | ip_addr ip = v1.val.ip; | |
399 | neighbor *n = neigh_find(rta->src->proto, ip, NULL, 0); | |
400 | if (!n || (n->scope == SCOPE_HOST)) | |
401 | runtime( "Invalid gw address" ); | |
402 | ||
403 | rta->dest = RTD_UNICAST; | |
404 | rta->nh.gw = ip; | |
405 | rta->nh.iface = n->iface; | |
406 | rta->nh.next = NULL; | |
407 | rta->hostentry = NULL; | |
408 | } | |
409 | break; | |
410 | ||
411 | case SA_SCOPE: | |
412 | rta->scope = v1.val.i; | |
413 | break; | |
414 | ||
415 | case SA_DEST: | |
416 | { | |
417 | int i = v1.val.i; | |
418 | if ((i != RTD_BLACKHOLE) && (i != RTD_UNREACHABLE) && (i != RTD_PROHIBIT)) | |
419 | runtime( "Destination can be changed only to blackhole, unreachable or prohibit" ); | |
420 | ||
421 | rta->dest = i; | |
422 | rta->nh.gw = IPA_NONE; | |
423 | rta->nh.iface = NULL; | |
424 | rta->nh.next = NULL; | |
425 | rta->hostentry = NULL; | |
426 | } | |
427 | break; | |
428 | ||
429 | case SA_IFNAME: | |
430 | { | |
431 | struct iface *ifa = if_find_by_name(v1.val.s); | |
432 | if (!ifa) | |
433 | runtime( "Invalid iface name" ); | |
434 | ||
435 | rta->dest = RTD_UNICAST; | |
436 | rta->nh.gw = IPA_NONE; | |
437 | rta->nh.iface = ifa; | |
438 | rta->nh.next = NULL; | |
439 | rta->hostentry = NULL; | |
440 | } | |
441 | break; | |
442 | ||
443 | default: | |
444 | bug("Invalid static attribute access (%u/%u)", sa.f_type, sa.sa_code); | |
445 | } | |
446 | } | |
447 | } | |
448 | ||
4c553c5a MM |
449 | INST(FI_EA_GET, 0, 1) { /* Access to extended attributes */ |
450 | DYNAMIC_ATTR; | |
f62a369f JMM |
451 | ACCESS_RTE; |
452 | ACCESS_EATTRS; | |
453 | { | |
4c553c5a | 454 | eattr *e = ea_find(*fs->eattrs, da.ea_code); |
f62a369f JMM |
455 | |
456 | if (!e) { | |
457 | /* A special case: undefined as_path looks like empty as_path */ | |
4c553c5a MM |
458 | if (da.type == EAF_TYPE_AS_PATH) { |
459 | RESULT(T_PATH, ad, &null_adata); | |
f62a369f JMM |
460 | break; |
461 | } | |
462 | ||
463 | /* The same special case for int_set */ | |
4c553c5a MM |
464 | if (da.type == EAF_TYPE_INT_SET) { |
465 | RESULT(T_CLIST, ad, &null_adata); | |
f62a369f JMM |
466 | break; |
467 | } | |
468 | ||
469 | /* The same special case for ec_set */ | |
4c553c5a MM |
470 | if (da.type == EAF_TYPE_EC_SET) { |
471 | RESULT(T_ECLIST, ad, &null_adata); | |
f62a369f JMM |
472 | break; |
473 | } | |
474 | ||
475 | /* The same special case for lc_set */ | |
4c553c5a MM |
476 | if (da.type == EAF_TYPE_LC_SET) { |
477 | RESULT(T_LCLIST, ad, &null_adata); | |
f62a369f JMM |
478 | break; |
479 | } | |
480 | ||
481 | /* Undefined value */ | |
f74d1976 | 482 | RESULT_VOID; |
f62a369f JMM |
483 | break; |
484 | } | |
485 | ||
486 | switch (e->type & EAF_TYPE_MASK) { | |
487 | case EAF_TYPE_INT: | |
4c553c5a | 488 | RESULT(da.f_type, i, e->u.data); |
f62a369f JMM |
489 | break; |
490 | case EAF_TYPE_ROUTER_ID: | |
4c553c5a | 491 | RESULT(T_QUAD, i, e->u.data); |
f62a369f JMM |
492 | break; |
493 | case EAF_TYPE_OPAQUE: | |
4c553c5a | 494 | RESULT(T_ENUM_EMPTY, i, 0); |
f62a369f JMM |
495 | break; |
496 | case EAF_TYPE_IP_ADDRESS: | |
4c553c5a | 497 | RESULT(T_IP, ip, *((ip_addr *) e->u.ptr->data)); |
f62a369f JMM |
498 | break; |
499 | case EAF_TYPE_AS_PATH: | |
4c553c5a | 500 | RESULT(T_PATH, ad, e->u.ptr); |
f62a369f JMM |
501 | break; |
502 | case EAF_TYPE_BITFIELD: | |
4c553c5a | 503 | RESULT(T_BOOL, i, !!(e->u.data & (1u << da.bit))); |
f62a369f JMM |
504 | break; |
505 | case EAF_TYPE_INT_SET: | |
4c553c5a | 506 | RESULT(T_CLIST, ad, e->u.ptr); |
f62a369f JMM |
507 | break; |
508 | case EAF_TYPE_EC_SET: | |
4c553c5a | 509 | RESULT(T_ECLIST, ad, e->u.ptr); |
f62a369f JMM |
510 | break; |
511 | case EAF_TYPE_LC_SET: | |
4c553c5a | 512 | RESULT(T_LCLIST, ad, e->u.ptr); |
f62a369f JMM |
513 | break; |
514 | case EAF_TYPE_UNDEF: | |
f74d1976 | 515 | RESULT_VOID; |
f62a369f JMM |
516 | break; |
517 | default: | |
4c553c5a | 518 | bug("Unknown dynamic attribute type"); |
f62a369f JMM |
519 | } |
520 | } | |
967b88d9 | 521 | } |
4c553c5a | 522 | |
a84b8b6e MM |
523 | INST(FI_EA_SET, 1, 0) { |
524 | ACCESS_RTE; | |
525 | ACCESS_EATTRS; | |
526 | ARG_ANY(1); | |
527 | DYNAMIC_ATTR; | |
528 | { | |
529 | struct ea_list *l = lp_alloc(fs->pool, sizeof(struct ea_list) + sizeof(eattr)); | |
530 | ||
531 | l->next = NULL; | |
532 | l->flags = EALF_SORTED; | |
533 | l->count = 1; | |
534 | l->attrs[0].id = da.ea_code; | |
535 | l->attrs[0].flags = 0; | |
536 | l->attrs[0].type = da.type | EAF_ORIGINATED | EAF_FRESH; | |
537 | ||
538 | switch (da.type) { | |
539 | case EAF_TYPE_INT: | |
540 | if (v1.type != da.f_type) | |
541 | runtime( "Setting int attribute to non-int value" ); | |
542 | l->attrs[0].u.data = v1.val.i; | |
543 | break; | |
544 | ||
545 | case EAF_TYPE_ROUTER_ID: | |
546 | /* IP->Quad implicit conversion */ | |
547 | if (val_is_ip4(&v1)) { | |
548 | l->attrs[0].u.data = ipa_to_u32(v1.val.ip); | |
549 | break; | |
550 | } | |
551 | /* T_INT for backward compatibility */ | |
552 | if ((v1.type != T_QUAD) && (v1.type != T_INT)) | |
553 | runtime( "Setting quad attribute to non-quad value" ); | |
554 | l->attrs[0].u.data = v1.val.i; | |
555 | break; | |
556 | ||
557 | case EAF_TYPE_OPAQUE: | |
558 | runtime( "Setting opaque attribute is not allowed" ); | |
559 | break; | |
560 | case EAF_TYPE_IP_ADDRESS: | |
561 | if (v1.type != T_IP) | |
562 | runtime( "Setting ip attribute to non-ip value" ); | |
563 | int len = sizeof(ip_addr); | |
564 | struct adata *ad = lp_alloc(fs->pool, sizeof(struct adata) + len); | |
565 | ad->length = len; | |
566 | (* (ip_addr *) ad->data) = v1.val.ip; | |
567 | l->attrs[0].u.ptr = ad; | |
568 | break; | |
569 | case EAF_TYPE_AS_PATH: | |
570 | if (v1.type != T_PATH) | |
571 | runtime( "Setting path attribute to non-path value" ); | |
572 | l->attrs[0].u.ptr = v1.val.ad; | |
573 | break; | |
574 | case EAF_TYPE_BITFIELD: | |
575 | if (v1.type != T_BOOL) | |
576 | runtime( "Setting bit in bitfield attribute to non-bool value" ); | |
577 | { | |
578 | /* First, we have to find the old value */ | |
579 | eattr *e = ea_find(*fs->eattrs, da.ea_code); | |
580 | u32 data = e ? e->u.data : 0; | |
581 | ||
582 | if (v1.val.i) | |
583 | l->attrs[0].u.data = data | (1u << da.bit); | |
584 | else | |
585 | l->attrs[0].u.data = data & ~(1u << da.bit); | |
586 | } | |
587 | break; | |
588 | case EAF_TYPE_INT_SET: | |
589 | if (v1.type != T_CLIST) | |
590 | runtime( "Setting clist attribute to non-clist value" ); | |
591 | l->attrs[0].u.ptr = v1.val.ad; | |
592 | break; | |
593 | case EAF_TYPE_EC_SET: | |
594 | if (v1.type != T_ECLIST) | |
595 | runtime( "Setting eclist attribute to non-eclist value" ); | |
596 | l->attrs[0].u.ptr = v1.val.ad; | |
597 | break; | |
598 | case EAF_TYPE_LC_SET: | |
599 | if (v1.type != T_LCLIST) | |
600 | runtime( "Setting lclist attribute to non-lclist value" ); | |
601 | l->attrs[0].u.ptr = v1.val.ad; | |
602 | break; | |
603 | default: bug("Unknown type in e,S"); | |
604 | } | |
605 | ||
606 | f_rta_cow(fs); | |
607 | l->next = *fs->eattrs; | |
608 | *fs->eattrs = l; | |
609 | } | |
610 | } | |
611 | ||
9b46748d MM |
612 | INST(FI_EA_UNSET, 0, 0) { |
613 | DYNAMIC_ATTR; | |
614 | ACCESS_RTE; | |
615 | ACCESS_EATTRS; | |
616 | ||
617 | { | |
618 | struct ea_list *l = lp_alloc(fs->pool, sizeof(struct ea_list) + sizeof(eattr)); | |
619 | ||
620 | l->next = NULL; | |
621 | l->flags = EALF_SORTED; | |
622 | l->count = 1; | |
623 | l->attrs[0].id = da.ea_code; | |
624 | l->attrs[0].flags = 0; | |
8d65add6 | 625 | l->attrs[0].type = EAF_TYPE_UNDEF | EAF_ORIGINATED | EAF_FRESH; |
9b46748d MM |
626 | l->attrs[0].u.data = 0; |
627 | ||
628 | f_rta_cow(fs); | |
629 | l->next = *fs->eattrs; | |
630 | *fs->eattrs = l; | |
631 | } | |
632 | } | |
633 | ||
4c553c5a | 634 | INST(FI_PREF_GET, 0, 1) { |
f62a369f | 635 | ACCESS_RTE; |
4c553c5a | 636 | RESULT(T_INT, i, (*fs->rte)->pref); |
967b88d9 | 637 | } |
4c553c5a | 638 | |
a84b8b6e MM |
639 | INST(FI_PREF_SET, 1, 0) { |
640 | ACCESS_RTE; | |
641 | ARG(1,T_INT); | |
642 | if (v1.val.i > 0xFFFF) | |
643 | runtime( "Setting preference value out of bounds" ); | |
644 | f_rte_cow(fs); | |
645 | (*fs->rte)->pref = v1.val.i; | |
646 | } | |
647 | ||
4c553c5a | 648 | INST(FI_LENGTH, 1, 1) { /* Get length of */ |
f62a369f | 649 | ARG_ANY(1); |
f62a369f | 650 | switch(v1.type) { |
4c553c5a MM |
651 | case T_NET: RESULT(T_INT, i, net_pxlen(v1.val.net)); break; |
652 | case T_PATH: RESULT(T_INT, i, as_path_getlen(v1.val.ad)); break; | |
653 | case T_CLIST: RESULT(T_INT, i, int_set_get_size(v1.val.ad)); break; | |
654 | case T_ECLIST: RESULT(T_INT, i, ec_set_get_size(v1.val.ad)); break; | |
655 | case T_LCLIST: RESULT(T_INT, i, lc_set_get_size(v1.val.ad)); break; | |
f62a369f JMM |
656 | default: runtime( "Prefix, path, clist or eclist expected" ); |
657 | } | |
967b88d9 | 658 | } |
4c553c5a MM |
659 | |
660 | INST(FI_SADR_SRC, 1, 1) { /* Get SADR src prefix */ | |
f62a369f JMM |
661 | ARG(1, T_NET); |
662 | if (!net_is_sadr(v1.val.net)) | |
663 | runtime( "SADR expected" ); | |
664 | ||
4c553c5a MM |
665 | net_addr_ip6_sadr *net = (void *) v1.val.net; |
666 | net_addr *src = lp_alloc(fs->pool, sizeof(net_addr_ip6)); | |
667 | net_fill_ip6(src, net->src_prefix, net->src_pxlen); | |
f62a369f | 668 | |
4c553c5a | 669 | RESULT(T_NET, net, src); |
967b88d9 | 670 | } |
4c553c5a MM |
671 | |
672 | INST(FI_ROA_MAXLEN, 1, 1) { /* Get ROA max prefix length */ | |
f62a369f JMM |
673 | ARG(1, T_NET); |
674 | if (!net_is_roa(v1.val.net)) | |
675 | runtime( "ROA expected" ); | |
676 | ||
4c553c5a | 677 | RESULT(T_INT, i, (v1.val.net->type == NET_ROA4) ? |
f62a369f | 678 | ((net_addr_roa4 *) v1.val.net)->max_pxlen : |
4c553c5a | 679 | ((net_addr_roa6 *) v1.val.net)->max_pxlen); |
967b88d9 | 680 | } |
4c553c5a MM |
681 | |
682 | INST(FI_ROA_ASN, 1, 1) { /* Get ROA ASN */ | |
f62a369f JMM |
683 | ARG(1, T_NET); |
684 | if (!net_is_roa(v1.val.net)) | |
685 | runtime( "ROA expected" ); | |
686 | ||
4c553c5a | 687 | RESULT(T_INT, i, (v1.val.net->type == NET_ROA4) ? |
f62a369f | 688 | ((net_addr_roa4 *) v1.val.net)->asn : |
4c553c5a | 689 | ((net_addr_roa6 *) v1.val.net)->asn); |
967b88d9 | 690 | } |
4c553c5a MM |
691 | |
692 | INST(FI_IP, 1, 1) { /* Convert prefix to ... */ | |
f62a369f | 693 | ARG(1, T_NET); |
4c553c5a | 694 | RESULT(T_IP, ip, net_prefix(v1.val.net)); |
967b88d9 | 695 | } |
4c553c5a MM |
696 | |
697 | INST(FI_ROUTE_DISTINGUISHER, 1, 1) { | |
f62a369f | 698 | ARG(1, T_NET); |
f62a369f JMM |
699 | if (!net_is_vpn(v1.val.net)) |
700 | runtime( "VPN address expected" ); | |
4c553c5a | 701 | RESULT(T_RD, ec, net_rd(v1.val.net)); |
967b88d9 | 702 | } |
f62a369f | 703 | |
4c553c5a MM |
704 | INST(FI_AS_PATH_FIRST, 1, 1) { /* Get first ASN from AS PATH */ |
705 | ARG(1, T_PATH); | |
706 | int as = 0; | |
f62a369f | 707 | as_path_get_first(v1.val.ad, &as); |
4c553c5a | 708 | RESULT(T_INT, i, as); |
967b88d9 | 709 | } |
f62a369f | 710 | |
4c553c5a MM |
711 | INST(FI_AS_PATH_LAST, 1, 1) { /* Get last ASN from AS PATH */ |
712 | ARG(1, T_PATH); | |
713 | int as = 0; | |
f62a369f | 714 | as_path_get_last(v1.val.ad, &as); |
4c553c5a | 715 | RESULT(T_INT, i, as); |
967b88d9 | 716 | } |
4c553c5a MM |
717 | |
718 | INST(FI_AS_PATH_LAST_NAG, 1, 1) { /* Get last ASN from non-aggregated part of AS PATH */ | |
f62a369f | 719 | ARG(1, T_PATH); |
4c553c5a MM |
720 | RESULT(T_INT, i, as_path_get_last_nonaggregated(v1.val.ad)); |
721 | } | |
f62a369f | 722 | |
a84b8b6e MM |
723 | INST(FI_RETURN, 1, 1) { |
724 | /* Acquire the return value */ | |
725 | ARG_ANY(1); | |
726 | uint retpos = fstk->vcnt; | |
727 | ||
728 | /* Drop every sub-block including ourselves */ | |
729 | while ((fstk->ecnt-- > 0) && !(fstk->estk[fstk->ecnt].emask & FE_RETURN)) | |
730 | ; | |
731 | ||
732 | /* Now we are at the caller frame; if no such, try to convert to accept/reject. */ | |
733 | if (!fstk->ecnt) | |
734 | if (fstk->vstk[retpos].type == T_BOOL) | |
735 | if (fstk->vstk[retpos].val.i) | |
736 | ||
737 | return F_ACCEPT; | |
738 | else | |
739 | return F_REJECT; | |
740 | else | |
741 | runtime("Can't return non-bool from non-function"); | |
742 | ||
743 | /* Set the value stack position, overwriting the former implicit void */ | |
744 | fstk->vcnt = fstk->estk[fstk->ecnt].ventry - 1; | |
745 | ||
746 | /* Copy the return value */ | |
747 | RESULT_VAL(fstk->vstk[retpos]); | |
748 | } | |
749 | ||
4c553c5a | 750 | INST(FI_CALL, 0, 1) { |
96d757c1 | 751 | SYMBOL; |
4f082dfa | 752 | |
96d757c1 JMM |
753 | /* Push the body on stack */ |
754 | LINEX(sym->function); | |
ea4f55e3 | 755 | curline.emask |= FE_RETURN; |
96d757c1 JMM |
756 | |
757 | /* Before this instruction was called, there was the T_VOID | |
758 | * automatic return value pushed on value stack and also | |
759 | * sym->function->args function arguments. Setting the | |
760 | * vbase to point to first argument. */ | |
761 | ASSERT(curline.ventry >= sym->function->args); | |
762 | curline.ventry -= sym->function->args; | |
763 | curline.vbase = curline.ventry; | |
764 | ||
765 | /* Storage for local variables */ | |
1757a6fc MM |
766 | memset(&(fstk->vstk[fstk->vcnt]), 0, sizeof(struct f_val) * sym->function->vars); |
767 | fstk->vcnt += sym->function->vars; | |
967b88d9 | 768 | } |
4c553c5a MM |
769 | |
770 | INST(FI_DROP_RESULT, 1, 0) { | |
771 | ARG_ANY(1); | |
967b88d9 | 772 | } |
4c553c5a | 773 | |
4c553c5a | 774 | INST(FI_SWITCH, 1, 0) { |
f62a369f | 775 | ARG_ANY(1); |
26bfe59f MM |
776 | |
777 | FID_MEMBER(const struct f_tree *, tree, tree, [[!same_tree(f1->tree, f2->tree)]], tree %p, item->tree, const struct f_tree *tree = whati->tree); | |
778 | ||
32793ab6 MM |
779 | const struct f_tree *t = find_tree(tree, &v1); |
780 | if (!t) { | |
4c553c5a | 781 | v1.type = T_VOID; |
32793ab6 MM |
782 | t = find_tree(tree, &v1); |
783 | if (!t) { | |
4c553c5a MM |
784 | debug( "No else statement?\n"); |
785 | break; | |
f62a369f | 786 | } |
f62a369f | 787 | } |
4c553c5a MM |
788 | /* It is actually possible to have t->data NULL */ |
789 | ||
32793ab6 | 790 | LINEX(t->data); |
967b88d9 | 791 | } |
4c553c5a MM |
792 | |
793 | INST(FI_IP_MASK, 2, 1) { /* IP.MASK(val) */ | |
f62a369f JMM |
794 | ARG(1, T_IP); |
795 | ARG(2, T_INT); | |
4c553c5a | 796 | RESULT(T_IP, ip, [[ ipa_is_ip4(v1.val.ip) ? |
f62a369f | 797 | ipa_from_ip4(ip4_and(ipa_to_ip4(v1.val.ip), ip4_mkmask(v2.val.i))) : |
4c553c5a | 798 | ipa_from_ip6(ip6_and(ipa_to_ip6(v1.val.ip), ip6_mkmask(v2.val.i))) ]]); |
967b88d9 | 799 | } |
f62a369f | 800 | |
4c553c5a | 801 | INST(FI_PATH_PREPEND, 2, 1) { /* Path prepend */ |
f62a369f JMM |
802 | ARG(1, T_PATH); |
803 | ARG(2, T_INT); | |
4c553c5a MM |
804 | RESULT(T_PATH, ad, [[ as_path_prepend(fs->pool, v1.val.ad, v2.val.i) ]]); |
805 | } | |
806 | ||
807 | INST(FI_CLIST_ADD, 2, 1) { /* (Extended) Community list add */ | |
808 | ARG_ANY(1); | |
809 | ARG_ANY(2); | |
810 | if (v1.type == T_PATH) | |
811 | runtime("Can't add to path"); | |
812 | ||
813 | else if (v1.type == T_CLIST) | |
814 | { | |
815 | /* Community (or cluster) list */ | |
816 | struct f_val dummy; | |
817 | ||
818 | if ((v2.type == T_PAIR) || (v2.type == T_QUAD)) | |
819 | RESULT(T_CLIST, ad, [[ int_set_add(fs->pool, v1.val.ad, v2.val.i) ]]); | |
820 | /* IP->Quad implicit conversion */ | |
821 | else if (val_is_ip4(&v2)) | |
822 | RESULT(T_CLIST, ad, [[ int_set_add(fs->pool, v1.val.ad, ipa_to_u32(v2.val.ip)) ]]); | |
823 | else if ((v2.type == T_SET) && clist_set_type(v2.val.t, &dummy)) | |
824 | runtime("Can't add set"); | |
825 | else if (v2.type == T_CLIST) | |
826 | RESULT(T_CLIST, ad, [[ int_set_union(fs->pool, v1.val.ad, v2.val.ad) ]]); | |
827 | else | |
828 | runtime("Can't add non-pair"); | |
829 | } | |
f62a369f | 830 | |
4c553c5a MM |
831 | else if (v1.type == T_ECLIST) |
832 | { | |
833 | /* v2.val is either EC or EC-set */ | |
834 | if ((v2.type == T_SET) && eclist_set_type(v2.val.t)) | |
835 | runtime("Can't add set"); | |
836 | else if (v2.type == T_ECLIST) | |
837 | RESULT(T_ECLIST, ad, [[ ec_set_union(fs->pool, v1.val.ad, v2.val.ad) ]]); | |
838 | else if (v2.type != T_EC) | |
839 | runtime("Can't add non-ec"); | |
840 | else | |
841 | RESULT(T_ECLIST, ad, [[ ec_set_add(fs->pool, v1.val.ad, v2.val.ec) ]]); | |
842 | } | |
843 | ||
844 | else if (v1.type == T_LCLIST) | |
845 | { | |
846 | /* v2.val is either LC or LC-set */ | |
847 | if ((v2.type == T_SET) && lclist_set_type(v2.val.t)) | |
848 | runtime("Can't add set"); | |
849 | else if (v2.type == T_LCLIST) | |
850 | RESULT(T_LCLIST, ad, [[ lc_set_union(fs->pool, v1.val.ad, v2.val.ad) ]]); | |
851 | else if (v2.type != T_LC) | |
852 | runtime("Can't add non-lc"); | |
853 | else | |
854 | RESULT(T_LCLIST, ad, [[ lc_set_add(fs->pool, v1.val.ad, v2.val.lc) ]]); | |
855 | ||
856 | } | |
857 | ||
858 | else | |
859 | runtime("Can't add to non-[e|l]clist"); | |
967b88d9 | 860 | } |
f62a369f | 861 | |
4c553c5a | 862 | INST(FI_CLIST_DEL, 2, 1) { /* (Extended) Community list add or delete */ |
f62a369f JMM |
863 | ARG_ANY(1); |
864 | ARG_ANY(2); | |
865 | if (v1.type == T_PATH) | |
866 | { | |
4c553c5a | 867 | const struct f_tree *set = NULL; |
f62a369f | 868 | u32 key = 0; |
f62a369f JMM |
869 | |
870 | if (v2.type == T_INT) | |
871 | key = v2.val.i; | |
872 | else if ((v2.type == T_SET) && (v2.val.t->from.type == T_INT)) | |
873 | set = v2.val.t; | |
874 | else | |
875 | runtime("Can't delete non-integer (set)"); | |
876 | ||
4c553c5a | 877 | RESULT(T_PATH, ad, [[ as_path_filter(fs->pool, v1.val.ad, set, key, 0) ]]); |
f62a369f | 878 | } |
4c553c5a | 879 | |
f62a369f JMM |
880 | else if (v1.type == T_CLIST) |
881 | { | |
882 | /* Community (or cluster) list */ | |
883 | struct f_val dummy; | |
f62a369f JMM |
884 | |
885 | if ((v2.type == T_PAIR) || (v2.type == T_QUAD)) | |
4c553c5a | 886 | RESULT(T_CLIST, ad, [[ int_set_del(fs->pool, v1.val.ad, v2.val.i) ]]); |
f62a369f | 887 | /* IP->Quad implicit conversion */ |
4c553c5a MM |
888 | else if (val_is_ip4(&v2)) |
889 | RESULT(T_CLIST, ad, [[ int_set_del(fs->pool, v1.val.ad, ipa_to_u32(v2.val.ip)) ]]); | |
890 | else if ((v2.type == T_SET) && clist_set_type(v2.val.t, &dummy) || (v2.type == T_CLIST)) | |
891 | RESULT(T_CLIST, ad, [[ clist_filter(fs->pool, v1.val.ad, &v2, 0) ]]); | |
f62a369f | 892 | else |
4c553c5a | 893 | runtime("Can't delete non-pair"); |
f62a369f | 894 | } |
4c553c5a | 895 | |
f62a369f JMM |
896 | else if (v1.type == T_ECLIST) |
897 | { | |
f62a369f | 898 | /* v2.val is either EC or EC-set */ |
4c553c5a MM |
899 | if ((v2.type == T_SET) && eclist_set_type(v2.val.t) || (v2.type == T_ECLIST)) |
900 | RESULT(T_ECLIST, ad, [[ eclist_filter(fs->pool, v1.val.ad, &v2, 0) ]]); | |
f62a369f | 901 | else if (v2.type != T_EC) |
4c553c5a MM |
902 | runtime("Can't delete non-ec"); |
903 | else | |
904 | RESULT(T_ECLIST, ad, [[ ec_set_del(fs->pool, v1.val.ad, v2.val.ec) ]]); | |
f62a369f | 905 | } |
4c553c5a | 906 | |
f62a369f JMM |
907 | else if (v1.type == T_LCLIST) |
908 | { | |
f62a369f | 909 | /* v2.val is either LC or LC-set */ |
4c553c5a MM |
910 | if ((v2.type == T_SET) && lclist_set_type(v2.val.t) || (v2.type == T_LCLIST)) |
911 | RESULT(T_LCLIST, ad, [[ lclist_filter(fs->pool, v1.val.ad, &v2, 0) ]]); | |
f62a369f | 912 | else if (v2.type != T_LC) |
4c553c5a MM |
913 | runtime("Can't delete non-lc"); |
914 | else | |
915 | RESULT(T_LCLIST, ad, [[ lc_set_del(fs->pool, v1.val.ad, v2.val.lc) ]]); | |
916 | } | |
f62a369f | 917 | |
4c553c5a MM |
918 | else |
919 | runtime("Can't delete in non-[e|l]clist"); | |
920 | } | |
f62a369f | 921 | |
4c553c5a MM |
922 | INST(FI_CLIST_FILTER, 2, 1) { /* (Extended) Community list add or delete */ |
923 | ARG_ANY(1); | |
924 | ARG_ANY(2); | |
925 | if (v1.type == T_PATH) | |
926 | { | |
927 | u32 key = 0; | |
f62a369f | 928 | |
4c553c5a MM |
929 | if ((v2.type == T_SET) && (v2.val.t->from.type == T_INT)) |
930 | RESULT(T_PATH, ad, [[ as_path_filter(fs->pool, v1.val.ad, v2.val.t, key, 1) ]]); | |
931 | else | |
932 | runtime("Can't filter integer"); | |
f62a369f | 933 | } |
f62a369f | 934 | |
4c553c5a MM |
935 | else if (v1.type == T_CLIST) |
936 | { | |
937 | /* Community (or cluster) list */ | |
938 | struct f_val dummy; | |
f62a369f | 939 | |
4c553c5a MM |
940 | if ((v2.type == T_SET) && clist_set_type(v2.val.t, &dummy) || (v2.type == T_CLIST)) |
941 | RESULT(T_CLIST, ad, [[ clist_filter(fs->pool, v1.val.ad, &v2, 1) ]]); | |
942 | else | |
943 | runtime("Can't filter pair"); | |
944 | } | |
945 | ||
946 | else if (v1.type == T_ECLIST) | |
f62a369f | 947 | { |
4c553c5a MM |
948 | /* v2.val is either EC or EC-set */ |
949 | if ((v2.type == T_SET) && eclist_set_type(v2.val.t) || (v2.type == T_ECLIST)) | |
950 | RESULT(T_ECLIST, ad, [[ eclist_filter(fs->pool, v1.val.ad, &v2, 1) ]]); | |
951 | else | |
952 | runtime("Can't filter ec"); | |
953 | } | |
f62a369f | 954 | |
4c553c5a MM |
955 | else if (v1.type == T_LCLIST) |
956 | { | |
957 | /* v2.val is either LC or LC-set */ | |
958 | if ((v2.type == T_SET) && lclist_set_type(v2.val.t) || (v2.type == T_LCLIST)) | |
959 | RESULT(T_LCLIST, ad, [[ lclist_filter(fs->pool, v1.val.ad, &v2, 1) ]]); | |
960 | else | |
961 | runtime("Can't filter lc"); | |
f62a369f | 962 | } |
4c553c5a | 963 | |
f62a369f | 964 | else |
4c553c5a MM |
965 | runtime("Can't filter non-[e|l]clist"); |
966 | } | |
f62a369f | 967 | |
4c553c5a MM |
968 | INST(FI_ROA_CHECK_IMPLICIT, 0, 1) { /* ROA Check */ |
969 | RTC(1); | |
970 | ACCESS_RTE; | |
971 | ACCESS_EATTRS; | |
972 | const net_addr *net = (*fs->rte)->net->n.addr; | |
f62a369f | 973 | |
4c553c5a MM |
974 | /* We ignore temporary attributes, probably not a problem here */ |
975 | /* 0x02 is a value of BA_AS_PATH, we don't want to include BGP headers */ | |
976 | eattr *e = ea_find(*fs->eattrs, EA_CODE(PROTOCOL_BGP, 0x02)); | |
f62a369f | 977 | |
4c553c5a MM |
978 | if (!e || ((e->type & EAF_TYPE_MASK) != EAF_TYPE_AS_PATH)) |
979 | runtime("Missing AS_PATH attribute"); | |
980 | ||
981 | u32 as = 0; | |
982 | as_path_get_last(e->u.ptr, &as); | |
f62a369f | 983 | |
f62a369f JMM |
984 | if (!table) |
985 | runtime("Missing ROA table"); | |
986 | ||
987 | if (table->addr_type != NET_ROA4 && table->addr_type != NET_ROA6) | |
988 | runtime("Table type must be either ROA4 or ROA6"); | |
989 | ||
4c553c5a MM |
990 | if (table->addr_type != (net->type == NET_IP4 ? NET_ROA4 : NET_ROA6)) |
991 | RESULT(T_ENUM_ROA, i, ROA_UNKNOWN); /* Prefix and table type mismatch */ | |
992 | else | |
993 | RESULT(T_ENUM_ROA, i, [[ net_roa_check(table, net, as) ]]); | |
994 | } | |
995 | ||
996 | INST(FI_ROA_CHECK_EXPLICIT, 2, 1) { /* ROA Check */ | |
997 | ARG(1, T_NET); | |
998 | ARG(2, T_INT); | |
999 | RTC(3); | |
1000 | ||
1001 | u32 as = v2.val.i; | |
1002 | ||
1003 | if (!table) | |
1004 | runtime("Missing ROA table"); | |
1005 | ||
1006 | if (table->addr_type != NET_ROA4 && table->addr_type != NET_ROA6) | |
1007 | runtime("Table type must be either ROA4 or ROA6"); | |
f62a369f JMM |
1008 | |
1009 | if (table->addr_type != (v1.val.net->type == NET_IP4 ? NET_ROA4 : NET_ROA6)) | |
4c553c5a | 1010 | RESULT(T_ENUM_ROA, i, ROA_UNKNOWN); /* Prefix and table type mismatch */ |
f62a369f | 1011 | else |
4c553c5a | 1012 | RESULT(T_ENUM_ROA, i, [[ net_roa_check(table, v1.val.net, as) ]]); |
f62a369f | 1013 | |
967b88d9 | 1014 | } |
f62a369f | 1015 | |
4c553c5a | 1016 | INST(FI_FORMAT, 1, 0) { /* Format */ |
f62a369f | 1017 | ARG_ANY(1); |
4c553c5a | 1018 | RESULT(T_STRING, s, val_format_str(fs, &v1)); |
967b88d9 | 1019 | } |
f62a369f | 1020 | |
4c553c5a | 1021 | INST(FI_ASSERT, 1, 0) { /* Birdtest Assert */ |
f62a369f | 1022 | ARG(1, T_BOOL); |
26bfe59f MM |
1023 | FID_MEMBER(const char *, s, s, [[strcmp(f1->s, f2->s)]], string \"%s\", item->s); |
1024 | ||
c0e958e0 MM |
1025 | if (!bt_assert_hook) |
1026 | runtime("No bt_assert hook registered, can't assert"); | |
1027 | ||
1028 | bt_assert_hook(res.val.i, what); | |
967b88d9 | 1029 | } |