Bug Summary

File:src/usr.sbin/ldpd/obj/parse.c
Warning:line 1523, column 18
Use of zero-allocated memory

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name parse.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/usr.sbin/ldpd/obj -resource-dir /usr/local/lib/clang/13.0.0 -I /usr/src/usr.sbin/ldpd -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/usr/src/usr.sbin/ldpd/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/vmm/scan-build/2022-01-12-194120-40624-1 -x c parse.c
1#include <stdlib.h>
2#include <string.h>
3#define YYBYACC1 1
4#define YYMAJOR1 1
5#define YYMINOR9 9
6#define YYLEXyylex() yylex()
7#define YYEMPTY-1 -1
8#define yyclearin(yychar=(-1)) (yychar=(YYEMPTY-1))
9#define yyerrok(yyerrflag=0) (yyerrflag=0)
10#define YYRECOVERING()(yyerrflag!=0) (yyerrflag!=0)
11#define YYPREFIX"yy" "yy"
12#line 26 "/usr/src/usr.sbin/ldpd/parse.y"
13#include <sys/stat.h>
14#include <sys/types.h>
15#include <sys/socket.h>
16#include <arpa/inet.h>
17#include <ctype.h>
18#include <err.h>
19#include <unistd.h>
20#include <ifaddrs.h>
21#include <net/if_types.h>
22#include <limits.h>
23#include <stdio.h>
24#include <syslog.h>
25#include <errno(*__errno()).h>
26#include <netdb.h>
27
28#include "ldpd.h"
29#include "ldpe.h"
30#include "lde.h"
31#include "log.h"
32
33struct file {
34 TAILQ_ENTRY(file)struct { struct file *tqe_next; struct file **tqe_prev; } entry;
35 FILE *stream;
36 char *name;
37 size_t ungetpos;
38 size_t ungetsize;
39 u_char *ungetbuf;
40 int eof_reached;
41 int lineno;
42 int errors;
43};
44TAILQ_HEAD(files, file)struct files { struct file *tqh_first; struct file **tqh_last
; };
45
46struct sym {
47 TAILQ_ENTRY(sym)struct { struct sym *tqe_next; struct sym **tqe_prev; } entry;
48 int used;
49 int persist;
50 char *nam;
51 char *val;
52};
53TAILQ_HEAD(symhead, sym)struct symhead { struct sym *tqh_first; struct sym **tqh_last
; };
54
55struct config_defaults {
56 uint16_t keepalive;
57 uint16_t lhello_holdtime;
58 uint16_t lhello_interval;
59 uint16_t thello_holdtime;
60 uint16_t thello_interval;
61 union ldpd_addr trans_addr;
62 int afflags;
63 uint8_t pwflags;
64};
65
66typedef struct {
67 union {
68 int64_t number;
69 char *string;
70 struct in_addr routerid;
71 struct ldp_auth *auth;
72 } v;
73 int lineno;
74} YYSTYPE;
75
76static int yyerror(const char *, ...)
77 __attribute__((__format__ (printf, 1, 2)))
78 __attribute__((__nonnull__ (1)));
79static int kw_cmp(const void *, const void *);
80static int lookup(char *);
81static int igetc(void);
82static int lgetc(int);
83void lungetc(int);
84static int findeol(void);
85static int yylex(void);
86static int check_file_secrecy(int, const char *);
87static struct file *pushfile(const char *, int);
88static int popfile(void);
89static int yyparse(void);
90static int symset(const char *, const char *, int);
91static char *symget(const char *);
92static struct iface *conf_get_if(struct kif *);
93static struct tnbr *conf_get_tnbr(union ldpd_addr *);
94static struct nbr_params *conf_get_nbrp(struct in_addr);
95static struct l2vpn *conf_get_l2vpn(char *);
96static struct l2vpn_if *conf_get_l2vpn_if(struct l2vpn *, struct kif *);
97static struct l2vpn_pw *conf_get_l2vpn_pw(struct l2vpn *, struct kif *);
98int conf_check_rdomain(unsigned int);
99static void clear_config(struct ldpd_conf *xconf);
100static uint32_t get_rtr_id(void);
101static int get_address(const char *, union ldpd_addr *);
102static int get_af_address(const char *, int *, union ldpd_addr *);
103static int str2key(char *, const char *, int);
104
105static struct file *file, *topfile;
106static struct files files = TAILQ_HEAD_INITIALIZER(files){ ((void *)0), &(files).tqh_first };
107static struct symhead symhead = TAILQ_HEAD_INITIALIZER(symhead){ ((void *)0), &(symhead).tqh_first };
108static struct ldpd_conf *conf;
109static int errors;
110
111static int af;
112static struct ldpd_af_conf *af_conf;
113static struct iface *iface;
114static struct iface_af *ia;
115static struct tnbr *tnbr;
116static struct nbr_params *nbrp;
117static struct l2vpn *l2vpn;
118static struct l2vpn_pw *pw;
119
120static struct config_defaults globaldefs;
121static struct config_defaults afdefs;
122static struct config_defaults ifacedefs;
123static struct config_defaults tnbrdefs;
124static struct config_defaults pwdefs;
125static struct config_defaults *defs;
126
127#line 128 "parse.c"
128#define INTERFACE257 257
129#define TNEIGHBOR258 258
130#define ROUTERID259 259
131#define FIBUPDATE260 260
132#define RDOMAIN261 261
133#define EXPNULL262 262
134#define LHELLOHOLDTIME263 263
135#define LHELLOINTERVAL264 264
136#define THELLOHOLDTIME265 265
137#define THELLOINTERVAL266 266
138#define THELLOACCEPT267 267
139#define AF268 268
140#define IPV4269 269
141#define IPV6270 270
142#define INET271 271
143#define INET6272 272
144#define GTSMENABLE273 273
145#define GTSMHOPS274 274
146#define KEEPALIVE275 275
147#define TRANSADDRESS276 276
148#define TRANSPREFERENCE277 277
149#define DSCISCOINTEROP278 278
150#define NEIGHBOR279 279
151#define TCP280 280
152#define MD5SIG281 281
153#define PASSWORD282 282
154#define KEY283 283
155#define L2VPN284 284
156#define TYPE285 285
157#define VPLS286 286
158#define PWTYPE287 287
159#define MTU288 288
160#define BRIDGE289 289
161#define ETHERNET290 290
162#define ETHERNETTAGGED291 291
163#define STATUSTLV292 292
164#define CONTROLWORD293 293
165#define PSEUDOWIRE294 294
166#define NEIGHBORID295 295
167#define NEIGHBORADDR296 296
168#define PWID297 297
169#define EXTTAG298 298
170#define YES299 299
171#define NO300 300
172#define INCLUDE301 301
173#define ERROR302 302
174#define STRING303 303
175#define NUMBER304 304
176#define YYERRCODE256 256
177const short yylhs[] =
178 { -1,
179 0, 0, 0, 0, 0, 0, 0, 0, 0, 10,
180 5, 5, 6, 1, 1, 2, 2, 3, 4, 4,
181 12, 11, 11, 11, 11, 11, 11, 11, 11, 11,
182 20, 13, 19, 19, 19, 22, 22, 23, 23, 23,
183 23, 23, 23, 23, 16, 16, 16, 17, 17, 18,
184 18, 8, 8, 8, 9, 9, 7, 27, 27, 27,
185 27, 28, 28, 29, 29, 29, 29, 32, 30, 31,
186 31, 31, 33, 33, 34, 34, 34, 34, 34, 34,
187 21, 21, 24, 36, 25, 35, 35, 35, 37, 37,
188 39, 26, 38, 38, 38, 40, 40, 42, 14, 41,
189 41, 41, 43, 43, 45, 15, 44, 44, 44, 46,
190 46,
191};
192const short yylen[] =
193 { 2,
194 0, 3, 2, 3, 3, 3, 3, 3, 3, 2,
195 2, 1, 1, 1, 1, 1, 1, 1, 1, 1,
196 3, 2, 2, 2, 2, 2, 1, 1, 1, 1,
197 0, 4, 4, 3, 0, 3, 2, 2, 2, 1,
198 1, 1, 1, 1, 2, 2, 2, 2, 2, 2,
199 2, 4, 4, 3, 1, 0, 2, 2, 1, 2,
200 2, 2, 2, 2, 2, 2, 1, 0, 4, 4,
201 3, 0, 3, 2, 2, 2, 1, 2, 2, 1,
202 2, 0, 2, 0, 4, 4, 3, 0, 3, 2,
203 0, 4, 4, 3, 0, 3, 2, 0, 4, 4,
204 3, 0, 3, 2, 0, 6, 4, 3, 0, 3,
205 2,
206};
207const short yydefred[] =
208 { 1,
209 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
210 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
211 0, 3, 27, 0, 0, 0, 0, 0, 0, 0,
212 28, 29, 30, 9, 13, 22, 14, 15, 23, 24,
213 46, 48, 49, 50, 51, 45, 16, 17, 31, 47,
214 25, 26, 98, 0, 0, 0, 10, 0, 55, 57,
215 2, 4, 5, 6, 7, 8, 0, 0, 0, 0,
216 0, 54, 12, 0, 0, 32, 0, 99, 52, 53,
217 18, 105, 11, 0, 0, 0, 0, 81, 0, 0,
218 0, 0, 34, 40, 41, 42, 0, 0, 43, 44,
219 0, 0, 0, 101, 59, 0, 0, 0, 106, 84,
220 91, 39, 38, 33, 0, 37, 60, 61, 58, 104,
221 100, 0, 0, 0, 0, 0, 36, 103, 0, 0,
222 0, 0, 0, 0, 0, 108, 77, 80, 0, 0,
223 0, 85, 0, 92, 83, 79, 19, 20, 75, 76,
224 78, 62, 63, 68, 111, 107, 0, 0, 0, 0,
225 110, 87, 0, 0, 94, 0, 0, 0, 69, 90,
226 86, 0, 97, 93, 0, 0, 89, 96, 0, 0,
227 0, 71, 67, 0, 0, 65, 66, 64, 74, 70,
228 0, 73,
229};
230const short yydgoto[] =
231 { 1,
232 39, 49, 82, 149, 74, 36, 23, 105, 60, 25,
233 26, 27, 28, 29, 30, 94, 95, 96, 76, 67,
234 85, 97, 98, 127, 99, 100, 106, 137, 184, 138,
235 169, 160, 185, 139, 142, 124, 164, 144, 125, 167,
236 78, 68, 107, 109, 87, 140,
237};
238const short yysindex[] =
239 { 0,
240 -10, 1, -280, -285, -279, -285, -277, -276, -275, -272,
241 -285, -253, -271, -253, -285, -280, -247, -268, -244, -266,
242 -21, 0, 0, -262, 32, 33, 34, 36, 38, 39,
243 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
244 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
245 0, 0, 0, -263, -235, -230, 0, -250, 0, 0,
246 0, 0, 0, 0, 0, 0, -69, -68, -246, -245,
247 -227, 0, 0, -242, 46, 0, 46, 0, 0, 0,
248 0, 0, 0, 46, 79, -119, -61, 0, -239, -237,
249 -285, -234, 0, 0, 0, 0, 99, 46, 0, 0,
250 -285, -236, -233, 0, 0, 46, -95, 46, 0, 0,
251 0, 0, 0, 0, 60, 0, 0, 0, 0, 0,
252 0, 60, -73, -51, -50, 46, 0, 0, -229, -269,
253 -226, -228, -285, -285, -223, 0, 0, 0, 46, -60,
254 46, 0, 46, 0, 0, 0, 0, 0, 0, 0,
255 0, 0, 0, 0, 0, 0, 60, -41, -118, -42,
256 0, 0, 46, -38, 0, 46, -107, 46, 0, 0,
257 0, 60, 0, 0, 60, -101, 0, 0, -280, -221,
258 -219, 0, 0, 46, -94, 0, 0, 0, 0, 0,
259 60, 0,};
260const short yyrindex[] =
261 { 0,
262 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
263 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
264 0, 0, 0, 73, 0, 0, 0, 0, 0, 0,
265 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
266 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
267 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
268 0, 0, 0, 0, 0, 0, 76, 80, 0, 0,
269 0, 0, 0, 81, 122, 0, -87, 0, 0, 0,
270 0, 0, 0, -123, 0, 0, 83, 0, 0, 0,
271 0, 0, 0, 0, 0, 0, 0, 122, 0, 0,
272 0, 0, 0, 0, 0, -87, 0, -49, 0, 0,
273 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
274 0, 0, 0, 37, 57, -123, 0, 0, 0, 0,
275 0, 0, 0, 0, 0, 0, 0, 0, -49, 0,
276 -33, 0, -48, 0, 0, 0, 0, 0, 0, 0,
277 0, 0, 0, 0, 0, 0, 0, 0, 0, -9,
278 0, 0, -33, 0, 0, -48, 0, -86, 0, 0,
279 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
280 0, 0, 0, -86, 0, 0, 0, 0, 0, 0,
281 0, 0,};
282const short yygindex[] =
283 { 0,
284 -3, 75, 0, 0, 0, -11, 0, 93, 0, 0,
285 0, 0, 0, 0, 0, 94, 25, 8, 0, 0,
286 293, 0, -1, -112, 0, 0, -8, -172, -88, 0,
287 0, 0, 0, -40, 0, 0, 0, 0, 0, 0,
288 0, 0, 0, 0, 0, 0,
289};
290#define YYTABLESIZE477 477
291const short yytable[] =
292 { 22,
293 72, 82, 41, 183, 53, 104, 165, 46, 33, 128,
294 34, 52, 183, 37, 38, 47, 48, 174, 69, 70,
295 147, 148, 35, 182, 40, 32, 42, 43, 44, 121,
296 190, 45, 50, 54, 55, 56, 57, 82, 82, 58,
297 59, 61, 62, 63, 161, 64, 88, 65, 66, 71,
298 72, 136, 73, 75, 77, 84, 79, 80, 81, 177,
299 83, 108, 178, 110, 156, 111, 95, 118, 113, 126,
300 119, 141, 143, 146, 151, 82, 82, 150, 192, 154,
301 168, 187, 56, 162, 188, 35, 171, 112, 51, 102,
302 21, 82, 109, 24, 31, 115, 191, 117, 122, 157,
303 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
304 0, 0, 0, 0, 0, 72, 0, 0, 0, 0,
305 0, 0, 0, 0, 0, 0, 0, 0, 0, 152,
306 153, 0, 0, 82, 82, 0, 0, 0, 82, 82,
307 82, 82, 82, 82, 0, 0, 9, 10, 0, 82,
308 82, 82, 82, 101, 102, 103, 82, 9, 10, 0,
309 17, 88, 0, 82, 82, 82, 166, 186, 82, 82,
310 82, 82, 82, 82, 175, 0, 82, 101, 102, 103,
311 19, 95, 163, 129, 17, 82, 82, 82, 172, 0,
312 133, 134, 82, 179, 180, 181, 129, 133, 134, 0,
313 179, 180, 181, 93, 19, 82, 82, 82, 82, 82,
314 82, 0, 82, 130, 131, 132, 82, 82, 133, 134,
315 135, 7, 8, 114, 7, 8, 130, 131, 132, 82,
316 82, 133, 134, 135, 0, 0, 0, 82, 82, 82,
317 0, 0, 82, 82, 82, 2, 82, 72, 3, 4,
318 5, 6, 7, 8, 9, 10, 11, 12, 0, 0,
319 0, 0, 0, 0, 13, 0, 14, 15, 16, 17,
320 0, 0, 0, 18, 0, 0, 0, 72, 72, 72,
321 0, 0, 72, 72, 72, 0, 0, 0, 0, 19,
322 20, 0, 21, 88, 88, 0, 0, 0, 88, 88,
323 88, 88, 88, 88, 0, 0, 0, 0, 0, 88,
324 0, 88, 88, 95, 95, 0, 0, 0, 95, 95,
325 95, 95, 95, 95, 0, 0, 0, 0, 0, 95,
326 0, 95, 95, 0, 0, 89, 90, 0, 0, 0,
327 6, 7, 8, 9, 10, 11, 0, 0, 0, 0,
328 0, 91, 0, 13, 92, 89, 90, 0, 0, 0,
329 6, 7, 8, 9, 10, 11, 0, 0, 0, 86,
330 0, 91, 0, 13, 92, 0, 88, 0, 82, 82,
331 0, 0, 0, 82, 82, 82, 82, 82, 82, 0,
332 116, 0, 0, 0, 82, 0, 82, 82, 120, 0,
333 123, 0, 0, 0, 0, 0, 0, 0, 0, 0,
334 0, 0, 0, 0, 0, 0, 0, 0, 145, 0,
335 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
336 0, 155, 0, 158, 0, 159, 0, 0, 0, 0,
337 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
338 0, 0, 0, 0, 0, 170, 0, 0, 173, 0,
339 176, 0, 0, 0, 0, 0, 0, 0, 0, 0,
340 0, 0, 0, 0, 0, 0, 189,
341};
342const short yycheck[] =
343 { 10,
344 10, 125, 6, 176, 16, 125, 125, 11, 1, 122,
345 10, 15, 185, 299, 300, 269, 270, 125, 282, 283,
346 290, 291, 303, 125, 304, 1, 304, 304, 304, 125,
347 125, 304, 304, 281, 303, 280, 303, 125, 125, 61,
348 303, 10, 10, 10, 157, 10, 10, 10, 10, 285,
349 281, 125, 303, 123, 123, 10, 303, 303, 286, 172,
350 303, 123, 175, 303, 125, 303, 10, 304, 303, 10,
351 304, 123, 123, 303, 303, 125, 125, 304, 191, 303,
352 123, 303, 10, 125, 304, 10, 125, 91, 14, 10,
353 10, 125, 10, 1, 1, 97, 185, 101, 107, 140,
354 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
355 -1, -1, -1, -1, -1, 125, -1, -1, -1, -1,
356 -1, -1, -1, -1, -1, -1, -1, -1, -1, 133,
357 134, -1, -1, 257, 258, -1, -1, -1, 262, 263,
358 264, 265, 266, 267, -1, -1, 265, 266, -1, 273,
359 274, 275, 276, 273, 274, 275, 280, 265, 266, -1,
360 280, 125, -1, 287, 288, 289, 159, 179, 292, 293,
361 294, 295, 296, 297, 167, -1, 300, 273, 274, 275,
362 300, 125, 158, 257, 280, 273, 274, 275, 164, -1,
363 292, 293, 280, 295, 296, 297, 257, 292, 293, -1,
364 295, 296, 297, 125, 300, 292, 293, 257, 295, 296,
365 297, -1, 300, 287, 288, 289, 265, 266, 292, 293,
366 294, 263, 264, 125, 263, 264, 287, 288, 289, 263,
367 264, 292, 293, 294, -1, -1, -1, 287, 288, 289,
368 -1, -1, 292, 293, 294, 256, 125, 257, 259, 260,
369 261, 262, 263, 264, 265, 266, 267, 268, -1, -1,
370 -1, -1, -1, -1, 275, -1, 277, 278, 279, 280,
371 -1, -1, -1, 284, -1, -1, -1, 287, 288, 289,
372 -1, -1, 292, 293, 294, -1, -1, -1, -1, 300,
373 301, -1, 303, 257, 258, -1, -1, -1, 262, 263,
374 264, 265, 266, 267, -1, -1, -1, -1, -1, 273,
375 -1, 275, 276, 257, 258, -1, -1, -1, 262, 263,
376 264, 265, 266, 267, -1, -1, -1, -1, -1, 273,
377 -1, 275, 276, -1, -1, 257, 258, -1, -1, -1,
378 262, 263, 264, 265, 266, 267, -1, -1, -1, -1,
379 -1, 273, -1, 275, 276, 257, 258, -1, -1, -1,
380 262, 263, 264, 265, 266, 267, -1, -1, -1, 77,
381 -1, 273, -1, 275, 276, -1, 84, -1, 257, 258,
382 -1, -1, -1, 262, 263, 264, 265, 266, 267, -1,
383 98, -1, -1, -1, 273, -1, 275, 276, 106, -1,
384 108, -1, -1, -1, -1, -1, -1, -1, -1, -1,
385 -1, -1, -1, -1, -1, -1, -1, -1, 126, -1,
386 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
387 -1, 139, -1, 141, -1, 143, -1, -1, -1, -1,
388 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
389 -1, -1, -1, -1, -1, 163, -1, -1, 166, -1,
390 168, -1, -1, -1, -1, -1, -1, -1, -1, -1,
391 -1, -1, -1, -1, -1, -1, 184,
392};
393#define YYFINAL1 1
394#ifndef YYDEBUG0
395#define YYDEBUG0 0
396#endif
397#define YYMAXTOKEN304 304
398#if YYDEBUG0
399const char * const yyname[] =
400 {
401"end-of-file",0,0,0,0,0,0,0,0,0,"'\\n'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
4020,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'='",0,0,0,0,0,0,0,
4030,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
4040,0,0,0,0,0,0,0,0,0,0,0,0,0,"'{'",0,"'}'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
4050,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
4060,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
4070,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"INTERFACE",
408"TNEIGHBOR","ROUTERID","FIBUPDATE","RDOMAIN","EXPNULL","LHELLOHOLDTIME",
409"LHELLOINTERVAL","THELLOHOLDTIME","THELLOINTERVAL","THELLOACCEPT","AF","IPV4",
410"IPV6","INET","INET6","GTSMENABLE","GTSMHOPS","KEEPALIVE","TRANSADDRESS",
411"TRANSPREFERENCE","DSCISCOINTEROP","NEIGHBOR","TCP","MD5SIG","PASSWORD","KEY",
412"L2VPN","TYPE","VPLS","PWTYPE","MTU","BRIDGE","ETHERNET","ETHERNETTAGGED",
413"STATUSTLV","CONTROLWORD","PSEUDOWIRE","NEIGHBORID","NEIGHBORADDR","PWID",
414"EXTTAG","YES","NO","INCLUDE","ERROR","STRING","NUMBER",
415};
416const char * const yyrule[] =
417 {"$accept : grammar",
418"grammar :",
419"grammar : grammar include '\\n'",
420"grammar : grammar '\\n'",
421"grammar : grammar conf_main '\\n'",
422"grammar : grammar varset '\\n'",
423"grammar : grammar af '\\n'",
424"grammar : grammar neighbor '\\n'",
425"grammar : grammar l2vpn '\\n'",
426"grammar : grammar error '\\n'",
427"include : INCLUDE STRING",
428"string : string STRING",
429"string : STRING",
430"routerid : STRING",
431"yesno : YES",
432"yesno : NO",
433"ldp_af : IPV4",
434"ldp_af : IPV6",
435"l2vpn_type : VPLS",
436"pw_type : ETHERNET",
437"pw_type : ETHERNETTAGGED",
438"varset : STRING '=' string",
439"conf_main : ROUTERID routerid",
440"conf_main : FIBUPDATE yesno",
441"conf_main : RDOMAIN NUMBER",
442"conf_main : TRANSPREFERENCE ldp_af",
443"conf_main : DSCISCOINTEROP yesno",
444"conf_main : auth",
445"conf_main : af_defaults",
446"conf_main : iface_defaults",
447"conf_main : tnbr_defaults",
448"$$1 :",
449"af : AF ldp_af $$1 af_block",
450"af_block : '{' optnl afopts_l '}'",
451"af_block : '{' optnl '}'",
452"af_block :",
453"afopts_l : afopts_l afoptsl nl",
454"afopts_l : afoptsl optnl",
455"afoptsl : TRANSADDRESS STRING",
456"afoptsl : GTSMENABLE yesno",
457"afoptsl : af_defaults",
458"afoptsl : iface_defaults",
459"afoptsl : tnbr_defaults",
460"afoptsl : interface",
461"afoptsl : tneighbor",
462"af_defaults : THELLOACCEPT yesno",
463"af_defaults : EXPNULL yesno",
464"af_defaults : KEEPALIVE NUMBER",
465"iface_defaults : LHELLOHOLDTIME NUMBER",
466"iface_defaults : LHELLOINTERVAL NUMBER",
467"tnbr_defaults : THELLOHOLDTIME NUMBER",
468"tnbr_defaults : THELLOINTERVAL NUMBER",
469"tcpmd5 : TCP MD5SIG PASSWORD STRING",
470"tcpmd5 : TCP MD5SIG KEY STRING",
471"tcpmd5 : NO TCP MD5SIG",
472"optnbrprefix : STRING",
473"optnbrprefix :",
474"auth : tcpmd5 optnbrprefix",
475"nbr_opts : KEEPALIVE NUMBER",
476"nbr_opts : tcpmd5",
477"nbr_opts : GTSMENABLE yesno",
478"nbr_opts : GTSMHOPS NUMBER",
479"pw_defaults : STATUSTLV yesno",
480"pw_defaults : CONTROLWORD yesno",
481"pwopts : PWID NUMBER",
482"pwopts : NEIGHBORID routerid",
483"pwopts : NEIGHBORADDR STRING",
484"pwopts : pw_defaults",
485"$$2 :",
486"pseudowire : PSEUDOWIRE STRING $$2 pw_block",
487"pw_block : '{' optnl pwopts_l '}'",
488"pw_block : '{' optnl '}'",
489"pw_block :",
490"pwopts_l : pwopts_l pwopts nl",
491"pwopts_l : pwopts optnl",
492"l2vpnopts : PWTYPE pw_type",
493"l2vpnopts : MTU NUMBER",
494"l2vpnopts : pw_defaults",
495"l2vpnopts : BRIDGE STRING",
496"l2vpnopts : INTERFACE STRING",
497"l2vpnopts : pseudowire",
498"optnl : '\\n' optnl",
499"optnl :",
500"nl : '\\n' optnl",
501"$$3 :",
502"interface : INTERFACE STRING $$3 interface_block",
503"interface_block : '{' optnl interfaceopts_l '}'",
504"interface_block : '{' optnl '}'",
505"interface_block :",
506"interfaceopts_l : interfaceopts_l iface_defaults nl",
507"interfaceopts_l : iface_defaults optnl",
508"$$4 :",
509"tneighbor : TNEIGHBOR STRING $$4 tneighbor_block",
510"tneighbor_block : '{' optnl tneighboropts_l '}'",
511"tneighbor_block : '{' optnl '}'",
512"tneighbor_block :",
513"tneighboropts_l : tneighboropts_l tnbr_defaults nl",
514"tneighboropts_l : tnbr_defaults optnl",
515"$$5 :",
516"neighbor : NEIGHBOR routerid $$5 neighbor_block",
517"neighbor_block : '{' optnl neighboropts_l '}'",
518"neighbor_block : '{' optnl '}'",
519"neighbor_block :",
520"neighboropts_l : neighboropts_l nbr_opts nl",
521"neighboropts_l : nbr_opts optnl",
522"$$6 :",
523"l2vpn : L2VPN STRING TYPE l2vpn_type $$6 l2vpn_block",
524"l2vpn_block : '{' optnl l2vpnopts_l '}'",
525"l2vpn_block : '{' optnl '}'",
526"l2vpn_block :",
527"l2vpnopts_l : l2vpnopts_l l2vpnopts nl",
528"l2vpnopts_l : l2vpnopts optnl",
529};
530#endif
531#ifdef YYSTACKSIZE10000
532#undef YYMAXDEPTH10000
533#define YYMAXDEPTH10000 YYSTACKSIZE10000
534#else
535#ifdef YYMAXDEPTH10000
536#define YYSTACKSIZE10000 YYMAXDEPTH10000
537#else
538#define YYSTACKSIZE10000 10000
539#define YYMAXDEPTH10000 10000
540#endif
541#endif
542#define YYINITSTACKSIZE200 200
543/* LINTUSED */
544int yydebug;
545int yynerrs;
546int yyerrflag;
547int yychar;
548short *yyssp;
549YYSTYPE *yyvsp;
550YYSTYPE yyval;
551YYSTYPE yylval;
552short *yyss;
553short *yysslim;
554YYSTYPE *yyvs;
555unsigned int yystacksize;
556int yyparse(void);
557#line 880 "/usr/src/usr.sbin/ldpd/parse.y"
558
559struct keywords {
560 const char *k_name;
561 int k_val;
562};
563
564static int
565yyerror(const char *fmt, ...)
566{
567 va_list ap;
568 char *msg;
569
570 file->errors++;
571 va_start(ap, fmt)__builtin_va_start(ap, fmt);
572 if (vasprintf(&msg, fmt, ap) == -1)
573 fatalx("yyerror vasprintf");
574 va_end(ap)__builtin_va_end(ap);
575 logit(LOG_CRIT2, "%s:%d: %s", file->name, yylval.lineno, msg);
576 free(msg);
577 return (0);
578}
579
580static int
581kw_cmp(const void *k, const void *e)
582{
583 return (strcmp(k, ((const struct keywords *)e)->k_name));
584}
585
586static int
587lookup(char *s)
588{
589 /* this has to be sorted always */
590 static const struct keywords keywords[] = {
591 {"address-family", AF268},
592 {"bridge", BRIDGE289},
593 {"control-word", CONTROLWORD293},
594 {"ds-cisco-interop", DSCISCOINTEROP278},
595 {"ethernet", ETHERNET290},
596 {"ethernet-tagged", ETHERNETTAGGED291},
597 {"explicit-null", EXPNULL262},
598 {"fib-update", FIBUPDATE260},
599 {"gtsm-enable", GTSMENABLE273},
600 {"gtsm-hops", GTSMHOPS274},
601 {"include", INCLUDE301},
602 {"inet", INET271},
603 {"inet6", INET6272},
604 {"interface", INTERFACE257},
605 {"ipv4", IPV4269},
606 {"ipv6", IPV6270},
607 {"keepalive", KEEPALIVE275},
608 {"key", KEY283},
609 {"l2vpn", L2VPN284},
610 {"link-hello-holdtime", LHELLOHOLDTIME263},
611 {"link-hello-interval", LHELLOINTERVAL264},
612 {"md5sig", MD5SIG281},
613 {"mtu", MTU288},
614 {"neighbor", NEIGHBOR279},
615 {"neighbor-addr", NEIGHBORADDR296},
616 {"neighbor-id", NEIGHBORID295},
617 {"no", NO300},
618 {"password", PASSWORD282},
619 {"pseudowire", PSEUDOWIRE294},
620 {"pw-id", PWID297},
621 {"pw-type", PWTYPE287},
622 {"rdomain", RDOMAIN261},
623 {"router-id", ROUTERID259},
624 {"status-tlv", STATUSTLV292},
625 {"targeted-hello-accept", THELLOACCEPT267},
626 {"targeted-hello-holdtime", THELLOHOLDTIME265},
627 {"targeted-hello-interval", THELLOINTERVAL266},
628 {"targeted-neighbor", TNEIGHBOR258},
629 {"tcp", TCP280},
630 {"transport-address", TRANSADDRESS276},
631 {"transport-preference", TRANSPREFERENCE277},
632 {"type", TYPE285},
633 {"vpls", VPLS286},
634 {"yes", YES299}
635 };
636 const struct keywords *p;
637
638 p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]),
639 sizeof(keywords[0]), kw_cmp);
640
641 if (p)
642 return (p->k_val);
643 else
644 return (STRING303);
645}
646
647#define START_EXPAND1 1
648#define DONE_EXPAND2 2
649
650static int expanding;
651
652int
653igetc(void)
654{
655 int c;
656
657 while (1) {
658 if (file->ungetpos > 0)
659 c = file->ungetbuf[--file->ungetpos];
660 else
661 c = getc(file->stream)(!__isthreaded ? (--(file->stream)->_r < 0 ? __srget
(file->stream) : (int)(*(file->stream)->_p++)) : (getc
)(file->stream));
662
663 if (c == START_EXPAND1)
664 expanding = 1;
665 else if (c == DONE_EXPAND2)
666 expanding = 0;
667 else
668 break;
669 }
670 return (c);
671}
672
673static int
674lgetc(int quotec)
675{
676 int c, next;
677
678 if (quotec) {
679 if ((c = igetc()) == EOF(-1)) {
680 yyerror("reached end of file while parsing "
681 "quoted string");
682 if (file == topfile || popfile() == EOF(-1))
683 return (EOF(-1));
684 return (quotec);
685 }
686 return (c);
687 }
688
689 while ((c = igetc()) == '\\') {
690 next = igetc();
691 if (next != '\n') {
692 c = next;
693 break;
694 }
695 yylval.lineno = file->lineno;
696 file->lineno++;
697 }
698
699 if (c == EOF(-1)) {
700 /*
701 * Fake EOL when hit EOF for the first time. This gets line
702 * count right if last line in included file is syntactically
703 * invalid and has no newline.
704 */
705 if (file->eof_reached == 0) {
706 file->eof_reached = 1;
707 return ('\n');
708 }
709 while (c == EOF(-1)) {
710 if (file == topfile || popfile() == EOF(-1))
711 return (EOF(-1));
712 c = igetc();
713 }
714 }
715 return (c);
716}
717
718void
719lungetc(int c)
720{
721 if (c == EOF(-1))
722 return;
723
724 if (file->ungetpos >= file->ungetsize) {
725 void *p = reallocarray(file->ungetbuf, file->ungetsize, 2);
726 if (p == NULL((void *)0))
727 err(1, "%s", __func__);
728 file->ungetbuf = p;
729 file->ungetsize *= 2;
730 }
731 file->ungetbuf[file->ungetpos++] = c;
732}
733
734static int
735findeol(void)
736{
737 int c;
738
739 /* skip to either EOF or the first real EOL */
740 while (1) {
741 c = lgetc(0);
742 if (c == '\n') {
743 file->lineno++;
744 break;
745 }
746 if (c == EOF(-1))
747 break;
748 }
749 return (ERROR302);
750}
751
752static int
753yylex(void)
754{
755 char buf[8096];
756 char *p, *val;
757 int quotec, next, c;
758 int token;
759
760 top:
761 p = buf;
762 while ((c = lgetc(0)) == ' ' || c == '\t')
763 ; /* nothing */
764
765 yylval.lineno = file->lineno;
766 if (c == '#')
767 while ((c = lgetc(0)) != '\n' && c != EOF(-1))
768 ; /* nothing */
769 if (c == '$' && !expanding) {
770 while (1) {
771 if ((c = lgetc(0)) == EOF(-1))
772 return (0);
773
774 if (p + 1 >= buf + sizeof(buf) - 1) {
775 yyerror("string too long");
776 return (findeol());
777 }
778 if (isalnum(c) || c == '_') {
779 *p++ = c;
780 continue;
781 }
782 *p = '\0';
783 lungetc(c);
784 break;
785 }
786 val = symget(buf);
787 if (val == NULL((void *)0)) {
788 yyerror("macro '%s' not defined", buf);
789 return (findeol());
790 }
791 p = val + strlen(val) - 1;
792 lungetc(DONE_EXPAND2);
793 while (p >= val) {
794 lungetc((unsigned char)*p);
795 p--;
796 }
797 lungetc(START_EXPAND1);
798 goto top;
799 }
800
801 switch (c) {
802 case '\'':
803 case '"':
804 quotec = c;
805 while (1) {
806 if ((c = lgetc(quotec)) == EOF(-1))
807 return (0);
808 if (c == '\n') {
809 file->lineno++;
810 continue;
811 } else if (c == '\\') {
812 if ((next = lgetc(quotec)) == EOF(-1))
813 return (0);
814 if (next == quotec || next == ' ' ||
815 next == '\t')
816 c = next;
817 else if (next == '\n') {
818 file->lineno++;
819 continue;
820 } else
821 lungetc(next);
822 } else if (c == quotec) {
823 *p = '\0';
824 break;
825 } else if (c == '\0') {
826 yyerror("syntax error");
827 return (findeol());
828 }
829 if (p + 1 >= buf + sizeof(buf) - 1) {
830 yyerror("string too long");
831 return (findeol());
832 }
833 *p++ = c;
834 }
835 yylval.v.string = strdup(buf);
836 if (yylval.v.string == NULL((void *)0))
837 err(1, "%s", __func__);
838 return (STRING303);
839 }
840
841#define allowed_to_end_number(x)(isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' ||
x == '=') \
842 (isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=')
843
844 if (c == '-' || isdigit(c)) {
845 do {
846 *p++ = c;
847 if ((size_t)(p-buf) >= sizeof(buf)) {
848 yyerror("string too long");
849 return (findeol());
850 }
851 } while ((c = lgetc(0)) != EOF(-1) && isdigit(c));
852 lungetc(c);
853 if (p == buf + 1 && buf[0] == '-')
854 goto nodigits;
855 if (c == EOF(-1) || allowed_to_end_number(c)(isspace(c) || c == ')' || c ==',' || c == '/' || c == '}' ||
c == '=')) {
856 const char *errstr = NULL((void *)0);
857
858 *p = '\0';
859 yylval.v.number = strtonum(buf, LLONG_MIN(-9223372036854775807LL -1LL),
860 LLONG_MAX9223372036854775807LL, &errstr);
861 if (errstr) {
862 yyerror("\"%s\" invalid number: %s",
863 buf, errstr);
864 return (findeol());
865 }
866 return (NUMBER304);
867 } else {
868 nodigits:
869 while (p > buf + 1)
870 lungetc((unsigned char)*--p);
871 c = (unsigned char)*--p;
872 if (c == '-')
873 return (c);
874 }
875 }
876
877#define allowed_in_string(x)(isalnum(x) || (ispunct(x) && x != '(' && x !=
')' && x != '{' && x != '}' && x != '!'
&& x != '=' && x != '#' && x != ',')
) \
878 (isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
879 x != '{' && x != '}' && \
880 x != '!' && x != '=' && x != '#' && \
881 x != ','))
882
883 if (isalnum(c) || c == ':' || c == '_') {
884 do {
885 *p++ = c;
886 if ((size_t)(p-buf) >= sizeof(buf)) {
887 yyerror("string too long");
888 return (findeol());
889 }
890 } while ((c = lgetc(0)) != EOF(-1) && (allowed_in_string(c)(isalnum(c) || (ispunct(c) && c != '(' && c !=
')' && c != '{' && c != '}' && c != '!'
&& c != '=' && c != '#' && c != ',')
)));
891 lungetc(c);
892 *p = '\0';
893 if ((token = lookup(buf)) == STRING303)
894 if ((yylval.v.string = strdup(buf)) == NULL((void *)0))
895 err(1, "%s", __func__);
896 return (token);
897 }
898 if (c == '\n') {
899 yylval.lineno = file->lineno;
900 file->lineno++;
901 }
902 if (c == EOF(-1))
903 return (0);
904 return (c);
905}
906
907static int
908check_file_secrecy(int fd, const char *fname)
909{
910 struct stat st;
911
912 if (fstat(fd, &st)) {
913 log_warn("cannot stat %s", fname);
914 return (-1);
915 }
916 if (st.st_uid != 0 && st.st_uid != getuid()) {
917 log_warnx("%s: owner not root or current user", fname);
918 return (-1);
919 }
920 if (st.st_mode & (S_IWGRP0000020 | S_IXGRP0000010 | S_IRWXO0000007)) {
921 log_warnx("%s: group writable or world read/writable", fname);
922 return (-1);
923 }
924 return (0);
925}
926
927static struct file *
928pushfile(const char *name, int secret)
929{
930 struct file *nfile;
931
932 if ((nfile = calloc(1, sizeof(struct file))) == NULL((void *)0)) {
933 log_warn("%s", __func__);
934 return (NULL((void *)0));
935 }
936 if ((nfile->name = strdup(name)) == NULL((void *)0)) {
937 log_warn("%s", __func__);
938 free(nfile);
939 return (NULL((void *)0));
940 }
941 if ((nfile->stream = fopen(nfile->name, "r")) == NULL((void *)0)) {
942 log_warn("%s: %s", __func__, nfile->name);
943 free(nfile->name);
944 free(nfile);
945 return (NULL((void *)0));
946 } else if (secret &&
947 check_file_secrecy(fileno(nfile->stream)(!__isthreaded ? ((nfile->stream)->_file) : (fileno)(nfile
->stream)), nfile->name)) {
948 fclose(nfile->stream);
949 free(nfile->name);
950 free(nfile);
951 return (NULL((void *)0));
952 }
953 nfile->lineno = TAILQ_EMPTY(&files)(((&files)->tqh_first) == ((void *)0)) ? 1 : 0;
954 nfile->ungetsize = 16;
955 nfile->ungetbuf = malloc(nfile->ungetsize);
956 if (nfile->ungetbuf == NULL((void *)0)) {
957 log_warn("%s", __func__);
958 fclose(nfile->stream);
959 free(nfile->name);
960 free(nfile);
961 return (NULL((void *)0));
962 }
963 TAILQ_INSERT_TAIL(&files, nfile, entry)do { (nfile)->entry.tqe_next = ((void *)0); (nfile)->entry
.tqe_prev = (&files)->tqh_last; *(&files)->tqh_last
= (nfile); (&files)->tqh_last = &(nfile)->entry
.tqe_next; } while (0);
964 return (nfile);
965}
966
967static int
968popfile(void)
969{
970 struct file *prev;
971
972 if ((prev = TAILQ_PREV(file, files, entry)(*(((struct files *)((file)->entry.tqe_prev))->tqh_last
))) != NULL((void *)0))
973 prev->errors += file->errors;
974
975 TAILQ_REMOVE(&files, file, entry)do { if (((file)->entry.tqe_next) != ((void *)0)) (file)->
entry.tqe_next->entry.tqe_prev = (file)->entry.tqe_prev
; else (&files)->tqh_last = (file)->entry.tqe_prev;
*(file)->entry.tqe_prev = (file)->entry.tqe_next; ; ; }
while (0);
976 fclose(file->stream);
977 free(file->name);
978 free(file->ungetbuf);
979 free(file);
980 file = prev;
981 return (file ? 0 : EOF(-1));
982}
983
984struct ldpd_conf *
985parse_config(char *filename)
986{
987 struct sym *sym, *next;
988
989 conf = config_new_empty();
990 conf->rdomain = 0;
991 conf->trans_pref = DUAL_STACK_LDPOV66;
992
993 defs = &globaldefs;
994 defs->keepalive = DEFAULT_KEEPALIVE180;
995 defs->lhello_holdtime = LINK_DFLT_HOLDTIME15;
996 defs->lhello_interval = DEFAULT_HELLO_INTERVAL5;
997 defs->thello_holdtime = TARGETED_DFLT_HOLDTIME45;
998 defs->thello_interval = DEFAULT_HELLO_INTERVAL5;
999 defs->pwflags = F_PW_STATUSTLV_CONF0x01|F_PW_CWORD_CONF0x04;
1000
1001 if ((file = pushfile(filename,
1002 !(global.cmd_opts & LDPD_OPT_NOACTION0x00000004))) == NULL((void *)0)) {
1003 free(conf);
1004 return (NULL((void *)0));
1005 }
1006 topfile = file;
1007
1008 yyparse();
1009 errors = file->errors;
1010 popfile();
1011
1012 /* Free macros and check which have not been used. */
1013 TAILQ_FOREACH_SAFE(sym, &symhead, entry, next)for ((sym) = ((&symhead)->tqh_first); (sym) != ((void *
)0) && ((next) = ((sym)->entry.tqe_next), 1); (sym
) = (next)) {
1014 if ((global.cmd_opts & LDPD_OPT_VERBOSE20x00000002) && !sym->used)
1015 fprintf(stderr(&__sF[2]), "warning: macro '%s' not "
1016 "used\n", sym->nam);
1017 if (!sym->persist) {
1018 free(sym->nam);
1019 free(sym->val);
1020 TAILQ_REMOVE(&symhead, sym, entry)do { if (((sym)->entry.tqe_next) != ((void *)0)) (sym)->
entry.tqe_next->entry.tqe_prev = (sym)->entry.tqe_prev;
else (&symhead)->tqh_last = (sym)->entry.tqe_prev;
*(sym)->entry.tqe_prev = (sym)->entry.tqe_next; ; ; } while
(0);
1021 free(sym);
1022 }
1023 }
1024
1025 /* check that all interfaces belong to the configured rdomain */
1026 errors += conf_check_rdomain(conf->rdomain);
1027
1028 /* free global config defaults */
1029 if (errors) {
1030 clear_config(conf);
1031 return (NULL((void *)0));
1032 }
1033
1034 if (conf->rtr_id.s_addr == INADDR_ANY((u_int32_t)(0x00000000)))
1035 conf->rtr_id.s_addr = get_rtr_id();
1036
1037 /* if the ipv4 transport-address is not set, use the router-id */
1038 if ((conf->ipv4.flags & F_LDPD_AF_ENABLED0x0001) &&
1039 conf->ipv4.trans_addr.v4.s_addr == INADDR_ANY((u_int32_t)(0x00000000)))
1040 conf->ipv4.trans_addr.v4 = conf->rtr_id;
1041
1042 return (conf);
1043}
1044
1045static int
1046symset(const char *nam, const char *val, int persist)
1047{
1048 struct sym *sym;
1049
1050 TAILQ_FOREACH(sym, &symhead, entry)for((sym) = ((&symhead)->tqh_first); (sym) != ((void *
)0); (sym) = ((sym)->entry.tqe_next)) {
1051 if (strcmp(nam, sym->nam) == 0)
1052 break;
1053 }
1054
1055 if (sym != NULL((void *)0)) {
1056 if (sym->persist == 1)
1057 return (0);
1058 else {
1059 free(sym->nam);
1060 free(sym->val);
1061 TAILQ_REMOVE(&symhead, sym, entry)do { if (((sym)->entry.tqe_next) != ((void *)0)) (sym)->
entry.tqe_next->entry.tqe_prev = (sym)->entry.tqe_prev;
else (&symhead)->tqh_last = (sym)->entry.tqe_prev;
*(sym)->entry.tqe_prev = (sym)->entry.tqe_next; ; ; } while
(0);
1062 free(sym);
1063 }
1064 }
1065 if ((sym = calloc(1, sizeof(*sym))) == NULL((void *)0))
1066 return (-1);
1067
1068 sym->nam = strdup(nam);
1069 if (sym->nam == NULL((void *)0)) {
1070 free(sym);
1071 return (-1);
1072 }
1073 sym->val = strdup(val);
1074 if (sym->val == NULL((void *)0)) {
1075 free(sym->nam);
1076 free(sym);
1077 return (-1);
1078 }
1079 sym->used = 0;
1080 sym->persist = persist;
1081 TAILQ_INSERT_TAIL(&symhead, sym, entry)do { (sym)->entry.tqe_next = ((void *)0); (sym)->entry.
tqe_prev = (&symhead)->tqh_last; *(&symhead)->tqh_last
= (sym); (&symhead)->tqh_last = &(sym)->entry.
tqe_next; } while (0);
1082 return (0);
1083}
1084
1085int
1086cmdline_symset(char *s)
1087{
1088 char *sym, *val;
1089 int ret;
1090
1091 if ((val = strrchr(s, '=')) == NULL((void *)0))
1092 return (-1);
1093 sym = strndup(s, val - s);
1094 if (sym == NULL((void *)0))
1095 errx(1, "%s: strndup", __func__);
1096 ret = symset(sym, val + 1, 1);
1097 free(sym);
1098
1099 return (ret);
1100}
1101
1102static char *
1103symget(const char *nam)
1104{
1105 struct sym *sym;
1106
1107 TAILQ_FOREACH(sym, &symhead, entry)for((sym) = ((&symhead)->tqh_first); (sym) != ((void *
)0); (sym) = ((sym)->entry.tqe_next)) {
1108 if (strcmp(nam, sym->nam) == 0) {
1109 sym->used = 1;
1110 return (sym->val);
1111 }
1112 }
1113 return (NULL((void *)0));
1114}
1115
1116static struct iface *
1117conf_get_if(struct kif *kif)
1118{
1119 struct iface *i;
1120 struct l2vpn *l;
1121
1122 if (kif->if_type == IFT_LOOP0x18 ||
1123 kif->if_type == IFT_CARP0xf7 ||
1124 kif->if_type == IFT_BRIDGE0xd1 ||
1125 kif->if_type == IFT_MPLSTUNNEL0x96) {
1126 yyerror("unsupported interface type on interface %s",
1127 kif->ifname);
1128 return (NULL((void *)0));
1129 }
1130
1131 LIST_FOREACH(l, &conf->l2vpn_list, entry)for((l) = ((&conf->l2vpn_list)->lh_first); (l)!= ((
void *)0); (l) = ((l)->entry.le_next))
1132 if (l2vpn_if_find(l, kif->ifindex)) {
1133 yyerror("interface %s already configured under "
1134 "l2vpn %s", kif->ifname, l->name);
1135 return (NULL((void *)0));
1136 }
1137
1138 LIST_FOREACH(i, &conf->iface_list, entry)for((i) = ((&conf->iface_list)->lh_first); (i)!= ((
void *)0); (i) = ((i)->entry.le_next))
1139 if (i->ifindex == kif->ifindex)
1140 return (i);
1141
1142 i = if_new(kif);
1143 LIST_INSERT_HEAD(&conf->iface_list, i, entry)do { if (((i)->entry.le_next = (&conf->iface_list)->
lh_first) != ((void *)0)) (&conf->iface_list)->lh_first
->entry.le_prev = &(i)->entry.le_next; (&conf->
iface_list)->lh_first = (i); (i)->entry.le_prev = &
(&conf->iface_list)->lh_first; } while (0);
1144 return (i);
1145}
1146
1147static struct tnbr *
1148conf_get_tnbr(union ldpd_addr *addr)
1149{
1150 struct tnbr *t;
1151
1152 t = tnbr_find(conf, af, addr);
1153 if (t) {
1154 yyerror("targeted neighbor %s already configured",
1155 log_addr(af, addr));
1156 return (NULL((void *)0));
1157 }
1158
1159 t = tnbr_new(conf, af, addr);
1160 t->flags |= F_TNBR_CONFIGURED0x01;
1161 LIST_INSERT_HEAD(&conf->tnbr_list, t, entry)do { if (((t)->entry.le_next = (&conf->tnbr_list)->
lh_first) != ((void *)0)) (&conf->tnbr_list)->lh_first
->entry.le_prev = &(t)->entry.le_next; (&conf->
tnbr_list)->lh_first = (t); (t)->entry.le_prev = &(
&conf->tnbr_list)->lh_first; } while (0);
1162 return (t);
1163}
1164
1165static struct nbr_params *
1166conf_get_nbrp(struct in_addr lsr_id)
1167{
1168 struct nbr_params *n;
1169
1170 LIST_FOREACH(n, &conf->nbrp_list, entry)for((n) = ((&conf->nbrp_list)->lh_first); (n)!= ((void
*)0); (n) = ((n)->entry.le_next)) {
1171 if (n->lsr_id.s_addr == lsr_id.s_addr) {
1172 yyerror("neighbor %s already configured",
1173 inet_ntoa(lsr_id));
1174 return (NULL((void *)0));
1175 }
1176 }
1177
1178 n = nbr_params_new(lsr_id);
1179 LIST_INSERT_HEAD(&conf->nbrp_list, n, entry)do { if (((n)->entry.le_next = (&conf->nbrp_list)->
lh_first) != ((void *)0)) (&conf->nbrp_list)->lh_first
->entry.le_prev = &(n)->entry.le_next; (&conf->
nbrp_list)->lh_first = (n); (n)->entry.le_prev = &(
&conf->nbrp_list)->lh_first; } while (0);
1180 return (n);
1181}
1182
1183static struct l2vpn *
1184conf_get_l2vpn(char *name)
1185{
1186 struct l2vpn *l;
1187
1188 if (l2vpn_find(conf, name)) {
1189 yyerror("l2vpn %s already configured", name);
1190 return (NULL((void *)0));
1191 }
1192
1193 l = l2vpn_new(name);
1194 LIST_INSERT_HEAD(&conf->l2vpn_list, l, entry)do { if (((l)->entry.le_next = (&conf->l2vpn_list)->
lh_first) != ((void *)0)) (&conf->l2vpn_list)->lh_first
->entry.le_prev = &(l)->entry.le_next; (&conf->
l2vpn_list)->lh_first = (l); (l)->entry.le_prev = &
(&conf->l2vpn_list)->lh_first; } while (0);
1195 return (l);
1196}
1197
1198static struct l2vpn_if *
1199conf_get_l2vpn_if(struct l2vpn *l, struct kif *kif)
1200{
1201 struct iface *i;
1202 struct l2vpn *ltmp;
1203 struct l2vpn_if *f;
1204
1205 if (kif->if_type == IFT_LOOP0x18 ||
1206 kif->if_type == IFT_CARP0xf7 ||
1207 kif->if_type == IFT_BRIDGE0xd1 ||
1208 kif->if_type == IFT_MPLSTUNNEL0x96) {
1209 yyerror("unsupported interface type on interface %s",
1210 kif->ifname);
1211 return (NULL((void *)0));
1212 }
1213
1214 LIST_FOREACH(ltmp, &conf->l2vpn_list, entry)for((ltmp) = ((&conf->l2vpn_list)->lh_first); (ltmp
)!= ((void *)0); (ltmp) = ((ltmp)->entry.le_next))
1215 if (l2vpn_if_find(ltmp, kif->ifindex)) {
1216 yyerror("interface %s already configured under "
1217 "l2vpn %s", kif->ifname, ltmp->name);
1218 return (NULL((void *)0));
1219 }
1220
1221 LIST_FOREACH(i, &conf->iface_list, entry)for((i) = ((&conf->iface_list)->lh_first); (i)!= ((
void *)0); (i) = ((i)->entry.le_next)) {
1222 if (i->ifindex == kif->ifindex) {
1223 yyerror("interface %s already configured",
1224 kif->ifname);
1225 return (NULL((void *)0));
1226 }
1227 }
1228
1229 f = l2vpn_if_new(l, kif);
1230 LIST_INSERT_HEAD(&l2vpn->if_list, f, entry)do { if (((f)->entry.le_next = (&l2vpn->if_list)->
lh_first) != ((void *)0)) (&l2vpn->if_list)->lh_first
->entry.le_prev = &(f)->entry.le_next; (&l2vpn->
if_list)->lh_first = (f); (f)->entry.le_prev = &(&
l2vpn->if_list)->lh_first; } while (0);
1231 return (f);
1232}
1233
1234static struct l2vpn_pw *
1235conf_get_l2vpn_pw(struct l2vpn *l, struct kif *kif)
1236{
1237 struct l2vpn *ltmp;
1238 struct l2vpn_pw *p;
1239
1240 LIST_FOREACH(ltmp, &conf->l2vpn_list, entry)for((ltmp) = ((&conf->l2vpn_list)->lh_first); (ltmp
)!= ((void *)0); (ltmp) = ((ltmp)->entry.le_next)) {
1241 if (l2vpn_pw_find(ltmp, kif->ifindex)) {
1242 yyerror("pseudowire %s is already being "
1243 "used by l2vpn %s", kif->ifname, ltmp->name);
1244 return (NULL((void *)0));
1245 }
1246 }
1247
1248 p = l2vpn_pw_new(l, kif);
1249 LIST_INSERT_HEAD(&l2vpn->pw_list, p, entry)do { if (((p)->entry.le_next = (&l2vpn->pw_list)->
lh_first) != ((void *)0)) (&l2vpn->pw_list)->lh_first
->entry.le_prev = &(p)->entry.le_next; (&l2vpn->
pw_list)->lh_first = (p); (p)->entry.le_prev = &(&
l2vpn->pw_list)->lh_first; } while (0);
1250 return (p);
1251}
1252
1253int
1254conf_check_rdomain(unsigned int rdomain)
1255{
1256 struct iface *i;
1257 int errs = 0;
1258
1259 LIST_FOREACH(i, &conf->iface_list, entry)for((i) = ((&conf->iface_list)->lh_first); (i)!= ((
void *)0); (i) = ((i)->entry.le_next)) {
1260 if (i->rdomain != rdomain) {
1261 logit(LOG_CRIT2, "interface %s not in rdomain %u",
1262 i->name, rdomain);
1263 errs++;
1264 }
1265 }
1266
1267 return (errs);
1268}
1269
1270static void
1271clear_config(struct ldpd_conf *xconf)
1272{
1273 struct iface *i;
1274 struct tnbr *t;
1275 struct nbr_params *n;
1276 struct l2vpn *l;
1277 struct l2vpn_if *f;
1278 struct l2vpn_pw *p;
1279
1280 while ((i = LIST_FIRST(&xconf->iface_list)((&xconf->iface_list)->lh_first)) != NULL((void *)0)) {
1281 LIST_REMOVE(i, entry)do { if ((i)->entry.le_next != ((void *)0)) (i)->entry.
le_next->entry.le_prev = (i)->entry.le_prev; *(i)->entry
.le_prev = (i)->entry.le_next; ; ; } while (0);
1282 free(i);
1283 }
1284
1285 while ((t = LIST_FIRST(&xconf->tnbr_list)((&xconf->tnbr_list)->lh_first)) != NULL((void *)0)) {
1286 LIST_REMOVE(t, entry)do { if ((t)->entry.le_next != ((void *)0)) (t)->entry.
le_next->entry.le_prev = (t)->entry.le_prev; *(t)->entry
.le_prev = (t)->entry.le_next; ; ; } while (0);
1287 free(t);
1288 }
1289
1290 while ((n = LIST_FIRST(&xconf->nbrp_list)((&xconf->nbrp_list)->lh_first)) != NULL((void *)0)) {
1291 LIST_REMOVE(n, entry)do { if ((n)->entry.le_next != ((void *)0)) (n)->entry.
le_next->entry.le_prev = (n)->entry.le_prev; *(n)->entry
.le_prev = (n)->entry.le_next; ; ; } while (0);
1292 free(n);
1293 }
1294
1295 while ((l = LIST_FIRST(&xconf->l2vpn_list)((&xconf->l2vpn_list)->lh_first)) != NULL((void *)0)) {
1296 while ((f = LIST_FIRST(&l->if_list)((&l->if_list)->lh_first)) != NULL((void *)0)) {
1297 LIST_REMOVE(f, entry)do { if ((f)->entry.le_next != ((void *)0)) (f)->entry.
le_next->entry.le_prev = (f)->entry.le_prev; *(f)->entry
.le_prev = (f)->entry.le_next; ; ; } while (0);
1298 free(f);
1299 }
1300 while ((p = LIST_FIRST(&l->pw_list)((&l->pw_list)->lh_first)) != NULL((void *)0)) {
1301 LIST_REMOVE(p, entry)do { if ((p)->entry.le_next != ((void *)0)) (p)->entry.
le_next->entry.le_prev = (p)->entry.le_prev; *(p)->entry
.le_prev = (p)->entry.le_next; ; ; } while (0);
1302 free(p);
1303 }
1304 LIST_REMOVE(l, entry)do { if ((l)->entry.le_next != ((void *)0)) (l)->entry.
le_next->entry.le_prev = (l)->entry.le_prev; *(l)->entry
.le_prev = (l)->entry.le_next; ; ; } while (0);
1305 free(l);
1306 }
1307
1308 free(xconf);
1309}
1310
1311static uint32_t
1312get_rtr_id(void)
1313{
1314 struct ifaddrs *ifap, *ifa;
1315 uint32_t ip = 0, cur, localnet;
1316
1317 localnet = htonl(INADDR_LOOPBACK & IN_CLASSA_NET)(__uint32_t)(__builtin_constant_p(((u_int32_t)(0x7f000001)) &
((u_int32_t)(0xff000000))) ? (__uint32_t)(((__uint32_t)(((u_int32_t
)(0x7f000001)) & ((u_int32_t)(0xff000000))) & 0xff) <<
24 | ((__uint32_t)(((u_int32_t)(0x7f000001)) & ((u_int32_t
)(0xff000000))) & 0xff00) << 8 | ((__uint32_t)(((u_int32_t
)(0x7f000001)) & ((u_int32_t)(0xff000000))) & 0xff0000
) >> 8 | ((__uint32_t)(((u_int32_t)(0x7f000001)) & (
(u_int32_t)(0xff000000))) & 0xff000000) >> 24) : __swap32md
(((u_int32_t)(0x7f000001)) & ((u_int32_t)(0xff000000))));
1318
1319 if (getifaddrs(&ifap) == -1) {
1320 log_warn("getifaddrs");
1321 return (0);
1322 }
1323
1324 for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
1325 if (strncmp(ifa->ifa_name, "carp", 4) == 0)
1326 continue;
1327 if (ifa->ifa_addr->sa_family != AF_INET2)
1328 continue;
1329 cur = ((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr;
1330 if ((cur & localnet) == localnet) /* skip 127/8 */
1331 continue;
1332 if (ntohl(cur)(__uint32_t)(__builtin_constant_p(cur) ? (__uint32_t)(((__uint32_t
)(cur) & 0xff) << 24 | ((__uint32_t)(cur) & 0xff00
) << 8 | ((__uint32_t)(cur) & 0xff0000) >> 8 |
((__uint32_t)(cur) & 0xff000000) >> 24) : __swap32md
(cur)) < ntohl(ip)(__uint32_t)(__builtin_constant_p(ip) ? (__uint32_t)(((__uint32_t
)(ip) & 0xff) << 24 | ((__uint32_t)(ip) & 0xff00
) << 8 | ((__uint32_t)(ip) & 0xff0000) >> 8 |
((__uint32_t)(ip) & 0xff000000) >> 24) : __swap32md
(ip)) || ip == 0)
1333 ip = cur;
1334 }
1335 freeifaddrs(ifap);
1336
1337 return (ip);
1338}
1339
1340static int
1341get_address(const char *s, union ldpd_addr *addr)
1342{
1343 switch (af) {
1344 case AF_INET2:
1345 if (inet_pton(AF_INET2, s, &addr->v4) != 1)
1346 return (-1);
1347 break;
1348 case AF_INET624:
1349 if (inet_pton(AF_INET624, s, &addr->v6) != 1)
1350 return (-1);
1351 break;
1352 default:
1353 return (-1);
1354 }
1355
1356 return (0);
1357}
1358
1359static int
1360get_af_address(const char *s, int *family, union ldpd_addr *addr)
1361{
1362 if (inet_pton(AF_INET2, s, &addr->v4) == 1) {
1363 *family = AF_INET2;
1364 return (0);
1365 }
1366
1367 if (inet_pton(AF_INET624, s, &addr->v6) == 1) {
1368 *family = AF_INET624;
1369 return (0);
1370 }
1371
1372 return (-1);
1373}
1374
1375static int
1376hexchar(int ch)
1377{
1378 if (ch >= '0' && ch <= '9')
1379 return (ch - '0');
1380 if (ch >= 'a' && ch <= 'f')
1381 return (ch - 'a');
1382 if (ch >= 'A' && ch <= 'F')
1383 return (ch - 'A');
1384
1385 return (-1);
1386}
1387
1388static int
1389str2key(char *dst, const char *src, int dstlen)
1390{
1391 int i = 0;
1392 int digit;
1393
1394 while (*src != '\0') {
1395 digit = hexchar(*src);
1396 if (digit == -1)
1397 return (-1);
1398
1399 if (i < dstlen)
1400 *dst = digit << 4;
1401
1402 src++;
1403 if (*src == '\0')
1404 return (-1);
1405 digit = hexchar(*src);
1406 if (digit == -1)
1407 return (-1);
1408
1409 if (i < dstlen)
1410 *dst |= digit;
1411
1412 src++;
1413 i++;
1414 }
1415
1416 return (i);
1417}
1418#line 1411 "parse.c"
1419/* allocate initial stack or double stack size, up to YYMAXDEPTH */
1420static int yygrowstack(void)
1421{
1422 unsigned int newsize;
1423 long sslen;
1424 short *newss;
1425 YYSTYPE *newvs;
1426
1427 if ((newsize = yystacksize) == 0)
22
←
Assuming the condition is false
→
23
←
Taking false branch
→
1428 newsize = YYINITSTACKSIZE200;
1429 else if (newsize >= YYMAXDEPTH10000)
24
←
Assuming 'newsize' is < YYMAXDEPTH
→
25
←
Taking false branch
→
1430 return -1;
1431 else if ((newsize *= 2) > YYMAXDEPTH10000)
26
←
Assuming the condition is false
→
27
←
Taking false branch
→
1432 newsize = YYMAXDEPTH10000;
1433 sslen = yyssp - yyss;
1434#ifdef SIZE_MAX0xffffffffffffffffUL
1435#define YY_SIZE_MAX0xffffffffffffffffUL SIZE_MAX0xffffffffffffffffUL
1436#else
1437#define YY_SIZE_MAX0xffffffffffffffffUL 0xffffffffU
1438#endif
1439 if (newsize && YY_SIZE_MAX0xffffffffffffffffUL / newsize < sizeof *newss)
28
←
Assuming 'newsize' is 0
→
1440 goto bail;
1441 newss = (short *)realloc(yyss, newsize * sizeof *newss);
1442 if (newss == NULL((void *)0))
29
←
Assuming 'newss' is not equal to NULL
→
30
←
Taking false branch
→
1443 goto bail;
1444 yyss = newss;
1445 yyssp = newss + sslen;
1446 if (newsize
30.1
'newsize' is 0
 && YY_SIZE_MAX0xffffffffffffffffUL / newsize < sizeof *newvs)
1447 goto bail;
1448 newvs = (YYSTYPE *)realloc(yyvs, newsize * sizeof *newvs);
1449 if (newvs == NULL((void *)0))
31
←
Assuming 'newvs' is not equal to NULL
→
32
←
Taking false branch
→
1450 goto bail;
1451 yyvs = newvs;
1452 yyvsp = newvs + sslen;
1453 yystacksize = newsize;
1454 yysslim = yyss + newsize - 1;
1455 return 0;
1456bail:
1457 if (yyss)
1458 free(yyss);
1459 if (yyvs)
1460 free(yyvs);
1461 yyss = yyssp = NULL((void *)0);
1462 yyvs = yyvsp = NULL((void *)0);
1463 yystacksize = 0;
1464 return -1;
1465}
1466
1467#define YYABORTgoto yyabort goto yyabort
1468#define YYREJECTgoto yyabort goto yyabort
1469#define YYACCEPTgoto yyaccept goto yyaccept
1470#define YYERRORgoto yyerrlab goto yyerrlab
1471int
1472yyparse(void)
1473{
1474 int yym, yyn, yystate;
1475#if YYDEBUG0
1476 const char *yys;
1477
1478 if ((yys = getenv("YYDEBUG")))
1479 {
1480 yyn = *yys;
1481 if (yyn >= '0' && yyn <= '9')
1482 yydebug = yyn - '0';
1483 }
1484#endif /* YYDEBUG */
1485
1486 yynerrs = 0;
1487 yyerrflag = 0;
1488 yychar = (-1);
1489
1490 if (yyss == NULL((void *)0) && yygrowstack()) goto yyoverflow;
1
Assuming 'yyss' is not equal to NULL
→
1491 yyssp = yyss;
1492 yyvsp = yyvs;
1493 *yyssp = yystate = 0;
1494
1495yyloop:
1496 if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
2
←
Taking true branch
→
3
←
Control jumps to line 1603
→
13
←
Taking false branch
→
1497 if (yychar
13.1
'yychar' is >= 0
 < 0)
14
←
Taking false branch
→
1498 {
1499 if ((yychar = yylex()) < 0) yychar = 0;
1500#if YYDEBUG0
1501 if (yydebug)
1502 {
1503 yys = 0;
1504 if (yychar <= YYMAXTOKEN304) yys = yyname[yychar];
1505 if (!yys) yys = "illegal-symbol";
1506 printf("%sdebug: state %d, reading %d (%s)\n",
1507 YYPREFIX"yy", yystate, yychar, yys);
1508 }
1509#endif
1510 }
1511 if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&
15
←
Assuming 'yyn' is not equal to 0
→
16
←
Assuming the condition is true
→
19
←
Taking true branch
→
1512 yyn <= YYTABLESIZE477 && yycheck[yyn] == yychar)
17
←
Assuming 'yyn' is <= YYTABLESIZE
→
18
←
Assuming the condition is true
→
1513 {
1514#if YYDEBUG0
1515 if (yydebug)
1516 printf("%sdebug: state %d, shifting to state %d\n",
1517 YYPREFIX"yy", yystate, yytable[yyn]);
1518#endif
1519 if (yyssp >= yysslim && yygrowstack())
20
←
Assuming 'yyssp' is >= 'yysslim'
→
21
←
Calling 'yygrowstack'
→
33
←
Returning from 'yygrowstack'
→
34
←
Taking false branch
→
1520 {
1521 goto yyoverflow;
1522 }
1523 *++yyssp = yystate = yytable[yyn];
35
←
Use of zero-allocated memory
1524 *++yyvsp = yylval;
1525 yychar = (-1);
1526 if (yyerrflag > 0) --yyerrflag;
1527 goto yyloop;
1528 }
1529 if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&
1530 yyn <= YYTABLESIZE477 && yycheck[yyn] == yychar)
1531 {
1532 yyn = yytable[yyn];
1533 goto yyreduce;
1534 }
1535 if (yyerrflag) goto yyinrecovery;
1536#if defined(__GNUC__4)
1537 goto yynewerror;
1538#endif
1539yynewerror:
1540 yyerror("syntax error");
1541#if defined(__GNUC__4)
1542 goto yyerrlab;
1543#endif
1544yyerrlab:
1545 ++yynerrs;
1546yyinrecovery:
1547 if (yyerrflag < 3)
1548 {
1549 yyerrflag = 3;
1550 for (;;)
1551 {
1552 if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE256) >= 0 &&
1553 yyn <= YYTABLESIZE477 && yycheck[yyn] == YYERRCODE256)
1554 {
1555#if YYDEBUG0
1556 if (yydebug)
1557 printf("%sdebug: state %d, error recovery shifting\
1558 to state %d\n", YYPREFIX"yy", *yyssp, yytable[yyn]);
1559#endif
1560 if (yyssp >= yysslim && yygrowstack())
1561 {
1562 goto yyoverflow;
1563 }
1564 *++yyssp = yystate = yytable[yyn];
1565 *++yyvsp = yylval;
1566 goto yyloop;
1567 }
1568 else
1569 {
1570#if YYDEBUG0
1571 if (yydebug)
1572 printf("%sdebug: error recovery discarding state %d\n",
1573 YYPREFIX"yy", *yyssp);
1574#endif
1575 if (yyssp <= yyss) goto yyabort;
1576 --yyssp;
1577 --yyvsp;
1578 }
1579 }
1580 }
1581 else
1582 {
1583 if (yychar == 0) goto yyabort;
1584#if YYDEBUG0
1585 if (yydebug)
1586 {
1587 yys = 0;
1588 if (yychar <= YYMAXTOKEN304) yys = yyname[yychar];
1589 if (!yys) yys = "illegal-symbol";
1590 printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
1591 YYPREFIX"yy", yystate, yychar, yys);
1592 }
1593#endif
1594 yychar = (-1);
1595 goto yyloop;
1596 }
1597yyreduce:
1598#if YYDEBUG0
1599 if (yydebug)
1600 printf("%sdebug: state %d, reducing by rule %d (%s)\n",
1601 YYPREFIX"yy", yystate, yyn, yyrule[yyn]);
1602#endif
1603 yym = yylen[yyn];
1604 if (yym
3.1
'yym' is 0
)
4
←
Taking false branch
→
1605 yyval = yyvsp[1-yym];
1606 else
1607 memset(&yyval, 0, sizeof yyval);
1608 switch (yyn)
5
←
'Default' branch taken. Execution continues on line 2371
→
1609 {
1610case 9:
1611#line 173 "/usr/src/usr.sbin/ldpd/parse.y"
1612{ file->errors++; }
1613break;
1614case 10:
1615#line 176 "/usr/src/usr.sbin/ldpd/parse.y"
1616{
1617 struct file *nfile;
1618
1619 if ((nfile = pushfile(yyvsp[0].v.string,
1620 !(global.cmd_opts & LDPD_OPT_NOACTION0x00000004))) == NULL((void *)0)) {
1621 yyerror("failed to include file %s", yyvsp[0].v.string);
1622 free(yyvsp[0].v.string);
1623 YYERRORgoto yyerrlab;
1624 }
1625 free(yyvsp[0].v.string);
1626
1627 file = nfile;
1628 lungetc('\n');
1629 }
1630break;
1631case 11:
1632#line 192 "/usr/src/usr.sbin/ldpd/parse.y"
1633{
1634 if (asprintf(&yyval.v.string, "%s %s", yyvsp[-1].v.string, yyvsp[0].v.string) == -1) {
1635 free(yyvsp[-1].v.string);
1636 free(yyvsp[0].v.string);
1637 yyerror("string: asprintf");
1638 YYERRORgoto yyerrlab;
1639 }
1640 free(yyvsp[-1].v.string);
1641 free(yyvsp[0].v.string);
1642 }
1643break;
1644case 13:
1645#line 205 "/usr/src/usr.sbin/ldpd/parse.y"
1646{
1647 if (!inet_aton(yyvsp[0].v.string, &yyval.v.routerid)) {
1648 yyerror("%s: error parsing router id", yyvsp[0].v.string);
1649 free(yyvsp[0].v.string);
1650 YYERRORgoto yyerrlab;
1651 }
1652 if (bad_addr_v4(yyval.v.routerid)) {
1653 yyerror("%s: invalid router id", yyvsp[0].v.string);
1654 free(yyvsp[0].v.string);
1655 YYERRORgoto yyerrlab;
1656 }
1657 free(yyvsp[0].v.string);
1658
1659 break;
1660 }
1661break;
1662case 14:
1663#line 222 "/usr/src/usr.sbin/ldpd/parse.y"
1664{ yyval.v.number = 1; }
1665break;
1666case 15:
1667#line 223 "/usr/src/usr.sbin/ldpd/parse.y"
1668{ yyval.v.number = 0; }
1669break;
1670case 16:
1671#line 226 "/usr/src/usr.sbin/ldpd/parse.y"
1672{ yyval.v.number = AF_INET2; }
1673break;
1674case 17:
1675#line 227 "/usr/src/usr.sbin/ldpd/parse.y"
1676{ yyval.v.number = AF_INET624; }
1677break;
1678case 18:
1679#line 230 "/usr/src/usr.sbin/ldpd/parse.y"
1680{ yyval.v.number = L2VPN_TYPE_VPLS2; }
1681break;
1682case 19:
1683#line 233 "/usr/src/usr.sbin/ldpd/parse.y"
1684{ yyval.v.number = PW_TYPE_ETHERNET0x0005; }
1685break;
1686case 20:
1687#line 234 "/usr/src/usr.sbin/ldpd/parse.y"
1688{ yyval.v.number = PW_TYPE_ETHERNET_TAGGED0x0004; }
1689break;
1690case 21:
1691#line 237 "/usr/src/usr.sbin/ldpd/parse.y"
1692{
1693 char *s = yyvsp[-2].v.string;
1694 if (global.cmd_opts & LDPD_OPT_VERBOSE0x00000001)
1695 printf("%s = \"%s\"\n", yyvsp[-2].v.string, yyvsp[0].v.string);
1696 while (*s++) {
1697 if (isspace((unsigned char)*s)) {
1698 yyerror("macro name cannot contain "
1699 "whitespace");
1700 free(yyvsp[-2].v.string);
1701 free(yyvsp[0].v.string);
1702 YYERRORgoto yyerrlab;
1703 }
1704 }
1705 if (symset(yyvsp[-2].v.string, yyvsp[0].v.string, 0) == -1)
1706 fatal("cannot store variable");
1707 free(yyvsp[-2].v.string);
1708 free(yyvsp[0].v.string);
1709 }
1710break;
1711case 22:
1712#line 257 "/usr/src/usr.sbin/ldpd/parse.y"
1713{
1714 conf->rtr_id = yyvsp[0].v.routerid;
1715 }
1716break;
1717case 23:
1718#line 260 "/usr/src/usr.sbin/ldpd/parse.y"
1719{
1720 if (yyvsp[0].v.number == 0)
1721 conf->flags |= F_LDPD_NO_FIB_UPDATE0x0001;
1722 else
1723 conf->flags &= ~F_LDPD_NO_FIB_UPDATE0x0001;
1724 }
1725break;
1726case 24:
1727#line 266 "/usr/src/usr.sbin/ldpd/parse.y"
1728{
1729 if (yyvsp[0].v.number < 0 || yyvsp[0].v.number > RT_TABLEID_MAX255) {
1730 yyerror("invalid rdomain");
1731 YYERRORgoto yyerrlab;
1732 }
1733 conf->rdomain = yyvsp[0].v.number;
1734 }
1735break;
1736case 25:
1737#line 273 "/usr/src/usr.sbin/ldpd/parse.y"
1738{
1739 conf->trans_pref = yyvsp[0].v.number;
1740
1741 switch (conf->trans_pref) {
1742 case AF_INET2:
1743 conf->trans_pref = DUAL_STACK_LDPOV44;
1744 break;
1745 case AF_INET624:
1746 conf->trans_pref = DUAL_STACK_LDPOV66;
1747 break;
1748 default:
1749 yyerror("invalid address-family");
1750 YYERRORgoto yyerrlab;
1751 }
1752 }
1753break;
1754case 26:
1755#line 288 "/usr/src/usr.sbin/ldpd/parse.y"
1756{
1757 if (yyvsp[0].v.number == 1)
1758 conf->flags |= F_LDPD_DS_CISCO_INTEROP0x0002;
1759 else
1760 conf->flags &= ~F_LDPD_DS_CISCO_INTEROP0x0002;
1761 }
1762break;
1763case 27:
1764#line 294 "/usr/src/usr.sbin/ldpd/parse.y"
1765{
1766 LIST_INSERT_HEAD(&conf->auth_list, yyvsp[0].v.auth, entry)do { if (((yyvsp[0].v.auth)->entry.le_next = (&conf->
auth_list)->lh_first) != ((void *)0)) (&conf->auth_list
)->lh_first->entry.le_prev = &(yyvsp[0].v.auth)->
entry.le_next; (&conf->auth_list)->lh_first = (yyvsp
[0].v.auth); (yyvsp[0].v.auth)->entry.le_prev = &(&
conf->auth_list)->lh_first; } while (0);
1767 }
1768break;
1769case 31:
1770#line 302 "/usr/src/usr.sbin/ldpd/parse.y"
1771{
1772 af = yyvsp[0].v.number;
1773 switch (af) {
1774 case AF_INET2:
1775 af_conf = &conf->ipv4;
1776 break;
1777 case AF_INET624:
1778 af_conf = &conf->ipv6;
1779 break;
1780 default:
1781 yyerror("invalid address-family");
1782 YYERRORgoto yyerrlab;
1783 }
1784
1785 afdefs = *defs;
1786 defs = &afdefs;
1787 }
1788break;
1789case 32:
1790#line 318 "/usr/src/usr.sbin/ldpd/parse.y"
1791{
1792 af_conf->keepalive = defs->keepalive;
1793 af_conf->thello_holdtime = defs->thello_holdtime;
1794 af_conf->thello_interval = defs->thello_interval;
1795 af_conf->flags = defs->afflags;
1796 af_conf->flags |= F_LDPD_AF_ENABLED0x0001;
1797 af_conf = NULL((void *)0);
1798 af = AF_UNSPEC0;
1799 defs = &globaldefs;
1800 }
1801break;
1802case 38:
1803#line 339 "/usr/src/usr.sbin/ldpd/parse.y"
1804{
1805 if (get_address(yyvsp[0].v.string, &af_conf->trans_addr) == -1) {
1806 yyerror("error parsing transport-address");
1807 free(yyvsp[0].v.string);
1808 YYERRORgoto yyerrlab;
1809 }
1810 free(yyvsp[0].v.string);
1811 if (bad_addr(af, &af_conf->trans_addr)) {
1812 yyerror("invalid transport-address");
1813 YYERRORgoto yyerrlab;
1814 }
1815 if (af == AF_INET624 &&
1816 IN6_IS_SCOPE_EMBED(&af_conf->trans_addr.v6)(((((&af_conf->trans_addr.v6)->__u6_addr.__u6_addr8
[0] == 0xfe) && (((&af_conf->trans_addr.v6)->
__u6_addr.__u6_addr8[1] & 0xc0) == 0x80))) || ((((&af_conf
->trans_addr.v6)->__u6_addr.__u6_addr8[0] == 0xff) &&
(((&af_conf->trans_addr.v6)->__u6_addr.__u6_addr8[
1] & 0x0f) == 0x02))) || ((((&af_conf->trans_addr.
v6)->__u6_addr.__u6_addr8[0] == 0xff) && (((&af_conf
->trans_addr.v6)->__u6_addr.__u6_addr8[1] & 0x0f) ==
0x01))))) {
1817 yyerror("ipv6 transport-address can not be "
1818 "link-local");
1819 YYERRORgoto yyerrlab;
1820 }
1821 }
1822break;
1823case 39:
1824#line 357 "/usr/src/usr.sbin/ldpd/parse.y"
1825{
1826 if (yyvsp[0].v.number == 0)
1827 defs->afflags |= F_LDPD_AF_NO_GTSM0x0008;
1828 }
1829break;
1830case 45:
1831#line 368 "/usr/src/usr.sbin/ldpd/parse.y"
1832{
1833 if (yyvsp[0].v.number == 0)
1834 defs->afflags &= ~F_LDPD_AF_THELLO_ACCEPT0x0002;
1835 else
1836 defs->afflags |= F_LDPD_AF_THELLO_ACCEPT0x0002;
1837 }
1838break;
1839case 46:
1840#line 374 "/usr/src/usr.sbin/ldpd/parse.y"
1841{
1842 if (yyvsp[0].v.number == 0)
1843 defs->afflags &= ~F_LDPD_AF_EXPNULL0x0004;
1844 else
1845 defs->afflags |= F_LDPD_AF_EXPNULL0x0004;
1846 }
1847break;
1848case 47:
1849#line 380 "/usr/src/usr.sbin/ldpd/parse.y"
1850{
1851 if (yyvsp[0].v.number < MIN_KEEPALIVE3 || yyvsp[0].v.number > MAX_KEEPALIVE0xffff) {
1852 yyerror("keepalive out of range (%d-%d)",
1853 MIN_KEEPALIVE3, MAX_KEEPALIVE0xffff);
1854 YYERRORgoto yyerrlab;
1855 }
1856 defs->keepalive = yyvsp[0].v.number;
1857 }
1858break;
1859case 48:
1860#line 390 "/usr/src/usr.sbin/ldpd/parse.y"
1861{
1862 if (yyvsp[0].v.number < MIN_HOLDTIME3 || yyvsp[0].v.number > MAX_HOLDTIME0xffff) {
1863 yyerror("hello-holdtime out of range (%d-%d)",
1864 MIN_HOLDTIME3, MAX_HOLDTIME0xffff);
1865 YYERRORgoto yyerrlab;
1866 }
1867 defs->lhello_holdtime = yyvsp[0].v.number;
1868 }
1869break;
1870case 49:
1871#line 398 "/usr/src/usr.sbin/ldpd/parse.y"
1872{
1873 if (yyvsp[0].v.number < MIN_HELLO_INTERVAL1 ||
1874 yyvsp[0].v.number > MAX_HELLO_INTERVAL0xffff) {
1875 yyerror("hello-interval out of range (%d-%d)",
1876 MIN_HELLO_INTERVAL1, MAX_HELLO_INTERVAL0xffff);
1877 YYERRORgoto yyerrlab;
1878 }
1879 defs->lhello_interval = yyvsp[0].v.number;
1880 }
1881break;
1882case 50:
1883#line 409 "/usr/src/usr.sbin/ldpd/parse.y"
1884{
1885 if (yyvsp[0].v.number < MIN_HOLDTIME3 || yyvsp[0].v.number > MAX_HOLDTIME0xffff) {
1886 yyerror("hello-holdtime out of range (%d-%d)",
1887 MIN_HOLDTIME3, MAX_HOLDTIME0xffff);
1888 YYERRORgoto yyerrlab;
1889 }
1890 defs->thello_holdtime = yyvsp[0].v.number;
1891 }
1892break;
1893case 51:
1894#line 417 "/usr/src/usr.sbin/ldpd/parse.y"
1895{
1896 if (yyvsp[0].v.number < MIN_HELLO_INTERVAL1 ||
1897 yyvsp[0].v.number > MAX_HELLO_INTERVAL0xffff) {
1898 yyerror("hello-interval out of range (%d-%d)",
1899 MIN_HELLO_INTERVAL1, MAX_HELLO_INTERVAL0xffff);
1900 YYERRORgoto yyerrlab;
1901 }
1902 defs->thello_interval = yyvsp[0].v.number;
1903 }
1904break;
1905case 52:
1906#line 428 "/usr/src/usr.sbin/ldpd/parse.y"
1907{
1908 size_t len;
1909
1910 yyval.v.auth = calloc(1, sizeof(*yyval.v.auth));
1911 if (yyval.v.auth == NULL((void *)0)) {
1912 free(yyvsp[0].v.string);
1913 yyerror("unable to allocate md5 key");
1914 YYERRORgoto yyerrlab;
1915 }
1916
1917 len = strlen(yyvsp[0].v.string);
1918 if (len > sizeof(yyval.v.auth->md5key)) {
1919 free(yyval.v.auth);
1920 free(yyvsp[0].v.string);
1921 yyerror("tcp md5sig password too long: "
1922 "max %zu", sizeof(yyval.v.auth->md5key));
1923 YYERRORgoto yyerrlab;
1924 }
1925
1926 memcpy(yyval.v.auth->md5key, yyvsp[0].v.string, len);
1927 yyval.v.auth->md5key_len = len;
1928
1929 free(yyvsp[0].v.string);
1930 }
1931break;
1932case 53:
1933#line 452 "/usr/src/usr.sbin/ldpd/parse.y"
1934{
1935 int len;
1936
1937 yyval.v.auth = calloc(1, sizeof(*yyval.v.auth));
1938 if (yyval.v.auth == NULL((void *)0)) {
1939 free(yyvsp[0].v.string);
1940 yyerror("unable to allocate md5 key");
1941 YYERRORgoto yyerrlab;
1942 }
1943
1944 len = str2key(yyval.v.auth->md5key, yyvsp[0].v.string, sizeof(yyval.v.auth->md5key));
1945 if (len == -1) {
1946 free(yyval.v.auth);
1947 free(yyvsp[0].v.string);
1948 yyerror("invalid hex string");
1949 YYERRORgoto yyerrlab;
1950 }
1951 if ((size_t)len > sizeof(yyval.v.auth->md5key_len)) {
1952 free(yyval.v.auth);
1953 free(yyvsp[0].v.string);
1954 yyerror("tcp md5sig key too long: %d "
1955 "max %zu", len, sizeof(yyval.v.auth->md5key));
1956 YYERRORgoto yyerrlab;
1957 }
1958
1959 yyval.v.auth->md5key_len = len;
1960
1961 free(yyvsp[0].v.string);
1962 }
1963break;
1964case 54:
1965#line 481 "/usr/src/usr.sbin/ldpd/parse.y"
1966{
1967 yyval.v.auth = calloc(1, sizeof(*yyval.v.auth));
1968 if (yyval.v.auth == NULL((void *)0)) {
1969 yyerror("unable to allocate no md5 key");
1970 YYERRORgoto yyerrlab;
1971 }
1972 yyval.v.auth->md5key_len = 0;
1973 }
1974break;
1975case 55:
1976#line 491 "/usr/src/usr.sbin/ldpd/parse.y"
1977{
1978 yyval.v.auth = calloc(1, sizeof(*yyval.v.auth));
1979 if (yyval.v.auth == NULL((void *)0)) {
1980 yyerror("unable to allocate auth");
1981 free(yyvsp[0].v.string);
1982 YYERRORgoto yyerrlab;
1983 }
1984
1985 yyval.v.auth->idlen = inet_net_pton(AF_INET2, yyvsp[0].v.string,
1986 &yyval.v.auth->id, sizeof(yyval.v.auth->id));
1987 if (yyval.v.auth->idlen == -1) {
1988 yyerror("%s: %s", yyvsp[0].v.string, strerror(errno(*__errno())));
1989 free(yyvsp[0].v.string);
1990 YYERRORgoto yyerrlab;
1991 }
1992 }
1993break;
1994case 56:
1995#line 507 "/usr/src/usr.sbin/ldpd/parse.y"
1996{
1997 yyval.v.auth = NULL((void *)0);
1998 }
1999break;
2000case 57:
2001#line 512 "/usr/src/usr.sbin/ldpd/parse.y"
2002{
2003 yyval.v.auth = yyvsp[-1].v.auth;
2004 if (yyvsp[0].v.auth != NULL((void *)0)) {
2005 yyval.v.auth->id = yyvsp[0].v.auth->id;
2006 yyval.v.auth->idlen = yyvsp[0].v.auth->idlen;
2007 free(yyvsp[0].v.auth);
2008 } else {
2009 yyval.v.auth->id.s_addr = 0;
2010 yyval.v.auth->idlen = 0;
2011 }
2012 }
2013break;
2014case 58:
2015#line 525 "/usr/src/usr.sbin/ldpd/parse.y"
2016{
2017 if (yyvsp[0].v.number < MIN_KEEPALIVE3 || yyvsp[0].v.number > MAX_KEEPALIVE0xffff) {
2018 yyerror("keepalive out of range (%d-%d)",
2019 MIN_KEEPALIVE3, MAX_KEEPALIVE0xffff);
2020 YYERRORgoto yyerrlab;
2021 }
2022 nbrp->keepalive = yyvsp[0].v.number;
2023 nbrp->flags |= F_NBRP_KEEPALIVE0x01;
2024 }
2025break;
2026case 59:
2027#line 534 "/usr/src/usr.sbin/ldpd/parse.y"
2028{
2029 /* this is syntactic sugar... */
2030 yyvsp[0].v.auth->id = nbrp->lsr_id;
2031 yyvsp[0].v.auth->idlen = 32;
2032 LIST_INSERT_HEAD(&conf->auth_list, yyvsp[0].v.auth, entry)do { if (((yyvsp[0].v.auth)->entry.le_next = (&conf->
auth_list)->lh_first) != ((void *)0)) (&conf->auth_list
)->lh_first->entry.le_prev = &(yyvsp[0].v.auth)->
entry.le_next; (&conf->auth_list)->lh_first = (yyvsp
[0].v.auth); (yyvsp[0].v.auth)->entry.le_prev = &(&
conf->auth_list)->lh_first; } while (0);
2033 }
2034break;
2035case 60:
2036#line 540 "/usr/src/usr.sbin/ldpd/parse.y"
2037{
2038 nbrp->flags |= F_NBRP_GTSM0x02;
2039 nbrp->gtsm_enabled = yyvsp[0].v.number;
2040 }
2041break;
2042case 61:
2043#line 544 "/usr/src/usr.sbin/ldpd/parse.y"
2044{
2045 if (yyvsp[0].v.number < 1 || yyvsp[0].v.number > 255) {
2046 yyerror("invalid number of hops %lld", yyvsp[0].v.number);
2047 YYERRORgoto yyerrlab;
2048 }
2049 nbrp->gtsm_hops = yyvsp[0].v.number;
2050 nbrp->flags |= F_NBRP_GTSM_HOPS0x04;
2051 }
2052break;
2053case 62:
2054#line 554 "/usr/src/usr.sbin/ldpd/parse.y"
2055{
2056 if (yyvsp[0].v.number == 1)
2057 defs->pwflags |= F_PW_STATUSTLV_CONF0x01;
2058 else
2059 defs->pwflags &= ~F_PW_STATUSTLV_CONF0x01;
2060 }
2061break;
2062case 63:
2063#line 560 "/usr/src/usr.sbin/ldpd/parse.y"
2064{
2065 if (yyvsp[0].v.number == 1)
2066 defs->pwflags |= F_PW_CWORD_CONF0x04;
2067 else
2068 defs->pwflags &= ~F_PW_CWORD_CONF0x04;
2069 }
2070break;
2071case 64:
2072#line 568 "/usr/src/usr.sbin/ldpd/parse.y"
2073{
2074 if (yyvsp[0].v.number < MIN_PWID_ID1 ||
2075 yyvsp[0].v.number > MAX_PWID_ID0xffffffff) {
2076 yyerror("pw-id out of range (%d-%d)",
2077 MIN_PWID_ID1, MAX_PWID_ID0xffffffff);
2078 YYERRORgoto yyerrlab;
2079 }
2080
2081 pw->pwid = yyvsp[0].v.number;
2082 }
2083break;
2084case 65:
2085#line 578 "/usr/src/usr.sbin/ldpd/parse.y"
2086{
2087 pw->lsr_id = yyvsp[0].v.routerid;
2088 }
2089break;
2090case 66:
2091#line 581 "/usr/src/usr.sbin/ldpd/parse.y"
2092{
2093 int family;
2094 union ldpd_addr addr;
2095
2096 if (get_af_address(yyvsp[0].v.string, &family, &addr) == -1) {
2097 yyerror("error parsing neighbor address");
2098 free(yyvsp[0].v.string);
2099 YYERRORgoto yyerrlab;
2100 }
2101 free(yyvsp[0].v.string);
2102 if (bad_addr(family, &addr)) {
2103 yyerror("invalid neighbor address");
2104 YYERRORgoto yyerrlab;
2105 }
2106 if (family == AF_INET624 &&
2107 IN6_IS_SCOPE_EMBED(&addr.v6)(((((&addr.v6)->__u6_addr.__u6_addr8[0] == 0xfe) &&
(((&addr.v6)->__u6_addr.__u6_addr8[1] & 0xc0) == 0x80
))) || ((((&addr.v6)->__u6_addr.__u6_addr8[0] == 0xff)
&& (((&addr.v6)->__u6_addr.__u6_addr8[1] &
0x0f) == 0x02))) || ((((&addr.v6)->__u6_addr.__u6_addr8
[0] == 0xff) && (((&addr.v6)->__u6_addr.__u6_addr8
[1] & 0x0f) == 0x01))))) {
2108 yyerror("neighbor address can not be "
2109 "link-local");
2110 YYERRORgoto yyerrlab;
2111 }
2112
2113 pw->af = family;
2114 pw->addr = addr;
2115 }
2116break;
2117case 68:
2118#line 608 "/usr/src/usr.sbin/ldpd/parse.y"
2119{
2120 struct kif *kif;
2121
2122 if ((kif = kif_findname(yyvsp[0].v.string)) == NULL((void *)0)) {
2123 yyerror("unknown interface %s", yyvsp[0].v.string);
2124 free(yyvsp[0].v.string);
2125 YYERRORgoto yyerrlab;
2126 }
2127 free(yyvsp[0].v.string);
2128
2129 if (kif->if_type != IFT_MPLSTUNNEL0x96 &&
2130 kmpw_find(kif->ifname) == -1) {
2131 yyerror("unsupported interface type on "
2132 "interface %s", kif->ifname);
2133 YYERRORgoto yyerrlab;
2134 }
2135
2136 pw = conf_get_l2vpn_pw(l2vpn, kif);
2137 if (pw == NULL((void *)0))
2138 YYERRORgoto yyerrlab;
2139
2140 pwdefs = *defs;
2141 defs = &pwdefs;
2142 }
2143break;
2144case 69:
2145#line 631 "/usr/src/usr.sbin/ldpd/parse.y"
2146{
2147 struct l2vpn *l;
2148 struct l2vpn_pw *p;
2149
2150 /* check for errors */
2151 if (pw->pwid == 0) {
2152 yyerror("missing pseudowire id");
2153 YYERRORgoto yyerrlab;
2154 }
2155 if (pw->lsr_id.s_addr == INADDR_ANY((u_int32_t)(0x00000000))) {
2156 yyerror("missing pseudowire neighbor-id");
2157 YYERRORgoto yyerrlab;
2158 }
2159 LIST_FOREACH(l, &conf->l2vpn_list, entry)for((l) = ((&conf->l2vpn_list)->lh_first); (l)!= ((
void *)0); (l) = ((l)->entry.le_next)) {
2160 LIST_FOREACH(p, &l->pw_list, entry)for((p) = ((&l->pw_list)->lh_first); (p)!= ((void *
)0); (p) = ((p)->entry.le_next)) {
2161 if (pw != p &&
2162 pw->pwid == p->pwid &&
2163 pw->af == p->af &&
2164 pw->lsr_id.s_addr ==
2165 p->lsr_id.s_addr) {
2166 yyerror("pseudowire already "
2167 "configured");
2168 YYERRORgoto yyerrlab;
2169 }
2170 }
2171 }
2172
2173 /*
2174 * If the neighbor address is not specified, use the
2175 * neighbor id.
2176 */
2177 if (pw->af == AF_UNSPEC0) {
2178 pw->af = AF_INET2;
2179 pw->addr.v4 = pw->lsr_id;
2180 }
2181
2182 pw->flags = defs->pwflags;
2183 pw = NULL((void *)0);
2184 defs = &globaldefs;
2185 }
2186break;
2187case 75:
2188#line 682 "/usr/src/usr.sbin/ldpd/parse.y"
2189{
2190 l2vpn->pw_type = yyvsp[0].v.number;
2191 }
2192break;
2193case 76:
2194#line 685 "/usr/src/usr.sbin/ldpd/parse.y"
2195{
2196 if (yyvsp[0].v.number < MIN_L2VPN_MTU512 ||
2197 yyvsp[0].v.number > MAX_L2VPN_MTU0xffff) {
2198 yyerror("l2vpn mtu out of range (%d-%d)",
2199 MIN_L2VPN_MTU512, MAX_L2VPN_MTU0xffff);
2200 YYERRORgoto yyerrlab;
2201 }
2202 l2vpn->mtu = yyvsp[0].v.number;
2203 }
2204break;
2205case 78:
2206#line 695 "/usr/src/usr.sbin/ldpd/parse.y"
2207{
2208 struct l2vpn *l;
2209 struct kif *kif;
2210
2211 if ((kif = kif_findname(yyvsp[0].v.string)) == NULL((void *)0)) {
2212 yyerror("unknown interface %s", yyvsp[0].v.string);
2213 free(yyvsp[0].v.string);
2214 YYERRORgoto yyerrlab;
2215 }
2216 free(yyvsp[0].v.string);
2217
2218 if (l2vpn->br_ifindex != 0) {
2219 yyerror("bridge interface cannot be "
2220 "redefined on l2vpn %s", l2vpn->name);
2221 YYERRORgoto yyerrlab;
2222 }
2223
2224 if (kif->if_type != IFT_BRIDGE0xd1) {
2225 yyerror("unsupported interface type on "
2226 "interface %s", kif->ifname);
2227 YYERRORgoto yyerrlab;
2228 }
2229
2230 LIST_FOREACH(l, &conf->l2vpn_list, entry)for((l) = ((&conf->l2vpn_list)->lh_first); (l)!= ((
void *)0); (l) = ((l)->entry.le_next)) {
2231 if (l->br_ifindex == kif->ifindex) {
2232 yyerror("bridge %s is already being "
2233 "used by l2vpn %s", kif->ifname,
2234 l->name);
2235 YYERRORgoto yyerrlab;
2236 }
2237 }
2238
2239 l2vpn->br_ifindex = kif->ifindex;
2240 strlcpy(l2vpn->br_ifname, kif->ifname,
2241 sizeof(l2vpn->br_ifname));
2242 }
2243break;
2244case 79:
2245#line 731 "/usr/src/usr.sbin/ldpd/parse.y"
2246{
2247 struct kif *kif;
2248 struct l2vpn_if *lif;
2249
2250 if ((kif = kif_findname(yyvsp[0].v.string)) == NULL((void *)0)) {
2251 yyerror("unknown interface %s", yyvsp[0].v.string);
2252 free(yyvsp[0].v.string);
2253 YYERRORgoto yyerrlab;
2254 }
2255 free(yyvsp[0].v.string);
2256
2257 lif = conf_get_l2vpn_if(l2vpn, kif);
2258 if (lif == NULL((void *)0))
2259 YYERRORgoto yyerrlab;
2260 }
2261break;
2262case 84:
2263#line 756 "/usr/src/usr.sbin/ldpd/parse.y"
2264{
2265 struct kif *kif;
2266
2267 if ((kif = kif_findname(yyvsp[0].v.string)) == NULL((void *)0)) {
2268 yyerror("unknown interface %s", yyvsp[0].v.string);
2269 free(yyvsp[0].v.string);
2270 YYERRORgoto yyerrlab;
2271 }
2272 free(yyvsp[0].v.string);
2273
2274 iface = conf_get_if(kif);
2275 if (iface == NULL((void *)0))
2276 YYERRORgoto yyerrlab;
2277
2278 ia = iface_af_get(iface, af);
2279 if (ia->enabled) {
2280 yyerror("interface %s already configured for "
2281 "address-family %s", kif->ifname,
2282 af_name(af));
2283 YYERRORgoto yyerrlab;
2284 }
2285 ia->enabled = 1;
2286
2287 ifacedefs = *defs;
2288 defs = &ifacedefs;
2289 }
2290break;
2291case 85:
2292#line 781 "/usr/src/usr.sbin/ldpd/parse.y"
2293{
2294 ia->hello_holdtime = defs->lhello_holdtime;
2295 ia->hello_interval = defs->lhello_interval;
2296 iface = NULL((void *)0);
2297 defs = &afdefs;
2298 }
2299break;
2300case 91:
2301#line 798 "/usr/src/usr.sbin/ldpd/parse.y"
2302{
2303 union ldpd_addr addr;
2304
2305 if (get_address(yyvsp[0].v.string, &addr) == -1) {
2306 yyerror("error parsing targeted-neighbor "
2307 "address");
2308 free(yyvsp[0].v.string);
2309 YYERRORgoto yyerrlab;
2310 }
2311 free(yyvsp[0].v.string);
2312 if (bad_addr(af, &addr)) {
2313 yyerror("invalid targeted-neighbor address");
2314 YYERRORgoto yyerrlab;
2315 }
2316 if (af == AF_INET624 &&
2317 IN6_IS_SCOPE_EMBED(&addr.v6)(((((&addr.v6)->__u6_addr.__u6_addr8[0] == 0xfe) &&
(((&addr.v6)->__u6_addr.__u6_addr8[1] & 0xc0) == 0x80
))) || ((((&addr.v6)->__u6_addr.__u6_addr8[0] == 0xff)
&& (((&addr.v6)->__u6_addr.__u6_addr8[1] &
0x0f) == 0x02))) || ((((&addr.v6)->__u6_addr.__u6_addr8
[0] == 0xff) && (((&addr.v6)->__u6_addr.__u6_addr8
[1] & 0x0f) == 0x01))))) {
2318 yyerror("targeted-neighbor address can not be "
2319 "link-local");
2320 YYERRORgoto yyerrlab;
2321 }
2322
2323 tnbr = conf_get_tnbr(&addr);
2324 if (tnbr == NULL((void *)0))
2325 YYERRORgoto yyerrlab;
2326
2327 tnbrdefs = *defs;
2328 defs = &tnbrdefs;
2329 }
2330break;
2331case 92:
2332#line 825 "/usr/src/usr.sbin/ldpd/parse.y"
2333{
2334 tnbr->hello_holdtime = defs->thello_holdtime;
2335 tnbr->hello_interval = defs->thello_interval;
2336 tnbr = NULL((void *)0);
2337 defs = &afdefs;
2338 }
2339break;
2340case 98:
2341#line 842 "/usr/src/usr.sbin/ldpd/parse.y"
2342{
2343 nbrp = conf_get_nbrp(yyvsp[0].v.routerid);
2344 if (nbrp == NULL((void *)0))
2345 YYERRORgoto yyerrlab;
2346 }
2347break;
2348case 99:
2349#line 846 "/usr/src/usr.sbin/ldpd/parse.y"
2350{
2351 nbrp = NULL((void *)0);
2352 }
2353break;
2354case 105:
2355#line 860 "/usr/src/usr.sbin/ldpd/parse.y"
2356{
2357 l2vpn = conf_get_l2vpn(yyvsp[-2].v.string);
2358 if (l2vpn == NULL((void *)0))
2359 YYERRORgoto yyerrlab;
2360 l2vpn->type = yyvsp[0].v.number;
2361 }
2362break;
2363case 106:
2364#line 865 "/usr/src/usr.sbin/ldpd/parse.y"
2365{
2366 l2vpn = NULL((void *)0);
2367 }
2368break;
2369#line 2362 "parse.c"
2370 }
2371 yyssp -= yym;
2372 yystate = *yyssp;
2373 yyvsp -= yym;
2374 yym = yylhs[yyn];
2375 if (yystate
5.1
'yystate' is equal to 0
 == 0 && yym
5.2
'yym' is equal to 0
 == 0)
6
←
Taking true branch
→
2376 {
2377#if YYDEBUG0
2378 if (yydebug)
2379 printf("%sdebug: after reduction, shifting from state 0 to\
2380 state %d\n", YYPREFIX"yy", YYFINAL1);
2381#endif
2382 yystate = YYFINAL1;
2383 *++yyssp = YYFINAL1;
2384 *++yyvsp = yyval;
2385 if (yychar
6.1
'yychar' is < 0
 < 0)
7
←
Taking true branch
→
2386 {
2387 if ((yychar = yylex()) < 0) yychar = 0;
8
←
Assuming the condition is false
→
9
←
Taking false branch
→
2388#if YYDEBUG0
2389 if (yydebug)
2390 {
2391 yys = 0;
2392 if (yychar <= YYMAXTOKEN304) yys = yyname[yychar];
2393 if (!yys) yys = "illegal-symbol";
2394 printf("%sdebug: state %d, reading %d (%s)\n",
2395 YYPREFIX"yy", YYFINAL1, yychar, yys);
2396 }
2397#endif
2398 }
2399 if (yychar == 0) goto yyaccept;
10
←
Assuming 'yychar' is not equal to 0
→
11
←
Taking false branch
→
2400 goto yyloop;
12
←
Control jumps to line 1496
→
2401 }
2402 if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
2403 yyn <= YYTABLESIZE477 && yycheck[yyn] == yystate)
2404 yystate = yytable[yyn];
2405 else
2406 yystate = yydgoto[yym];
2407#if YYDEBUG0
2408 if (yydebug)
2409 printf("%sdebug: after reduction, shifting from state %d \
2410to state %d\n", YYPREFIX"yy", *yyssp, yystate);
2411#endif
2412 if (yyssp >= yysslim && yygrowstack())
2413 {
2414 goto yyoverflow;
2415 }
2416 *++yyssp = yystate;
2417 *++yyvsp = yyval;
2418 goto yyloop;
2419yyoverflow:
2420 yyerror("yacc stack overflow");
2421yyabort:
2422 if (yyss)
2423 free(yyss);
2424 if (yyvs)
2425 free(yyvs);
2426 yyss = yyssp = NULL((void *)0);
2427 yyvs = yyvsp = NULL((void *)0);
2428 yystacksize = 0;
2429 return (1);
2430yyaccept:
2431 if (yyss)
2432 free(yyss);
2433 if (yyvs)
2434 free(yyvs);
2435 yyss = yyssp = NULL((void *)0);
2436 yyvs = yyvsp = NULL((void *)0);
2437 yystacksize = 0;
2438 return (0);
2439}