Bug Summary

File:src/usr.sbin/ospf6d/obj/parse.c
Warning:line 1214, column 12
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/ospf6d/obj -resource-dir /usr/local/lib/clang/13.0.0 -I /usr/src/usr.sbin/ospf6d -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/usr/src/usr.sbin/ospf6d/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 25 "/usr/src/usr.sbin/ospf6d/parse.y"
13#include <sys/types.h>
14#include <sys/socket.h>
15#include <sys/stat.h>
16#include <net/route.h>
17#include <netinet/in.h>
18#include <arpa/inet.h>
19
20#include <ctype.h>
21#include <err.h>
22#include <errno(*__errno()).h>
23#include <unistd.h>
24#include <ifaddrs.h>
25#include <limits.h>
26#include <netdb.h>
27#include <stdarg.h>
28#include <stdio.h>
29#include <string.h>
30#include <syslog.h>
31
32#include "ospf6.h"
33#include "ospf6d.h"
34#include "ospfe.h"
35#include "log.h"
36
37TAILQ_HEAD(files, file)struct files { struct file *tqh_first; struct file **tqh_last
; } files = TAILQ_HEAD_INITIALIZER(files){ ((void*)0), &(files).tqh_first };
38static struct file {
39 TAILQ_ENTRY(file)struct { struct file *tqe_next; struct file **tqe_prev; } entry;
40 FILE *stream;
41 char *name;
42 size_t ungetpos;
43 size_t ungetsize;
44 u_char *ungetbuf;
45 int eof_reached;
46 int lineno;
47 int errors;
48} *file, *topfile;
49struct file *pushfile(const char *, int);
50int popfile(void);
51int check_file_secrecy(int, const char *);
52int yyparse(void);
53int yylex(void);
54int yyerror(const char *, ...)
55 __attribute__((__format__ (printf, 1, 2)))
56 __attribute__((__nonnull__ (1)));
57int kw_cmp(const void *, const void *);
58int lookup(char *);
59int igetc(void);
60int lgetc(int);
61void lungetc(int);
62int findeol(void);
63
64TAILQ_HEAD(symhead, sym)struct symhead { struct sym *tqh_first; struct sym **tqh_last
; } symhead = TAILQ_HEAD_INITIALIZER(symhead){ ((void*)0), &(symhead).tqh_first };
65struct sym {
66 TAILQ_ENTRY(sym)struct { struct sym *tqe_next; struct sym **tqe_prev; } entry;
67 int used;
68 int persist;
69 char *nam;
70 char *val;
71};
72int symset(const char *, const char *, int);
73char *symget(const char *);
74
75void clear_config(struct ospfd_conf *xconf);
76u_int32_t get_rtr_id(void);
77int host(const char *, struct in6_addr *);
78int prefix(const char *, struct in6_addr *, u_int8_t *);
79
80static struct ospfd_conf *conf;
81static int errors = 0;
82
83struct area *area = NULL((void*)0);
84struct iface *iface = NULL((void*)0);
85
86struct config_defaults {
87 u_int16_t dead_interval;
88 u_int16_t transmit_delay;
89 u_int16_t hello_interval;
90 u_int16_t rxmt_interval;
91 u_int16_t metric;
92 u_int8_t priority;
93 u_int8_t p2p;
94};
95
96struct config_defaults globaldefs;
97struct config_defaults areadefs;
98struct config_defaults ifacedefs;
99struct config_defaults *defs;
100
101struct area *conf_get_area(struct in_addr);
102int conf_check_rdomain(u_int);
103
104typedef struct {
105 union {
106 int64_t number;
107 char *string;
108 struct redistribute *redist;
109 struct in_addr id;
110 } v;
111 int lineno;
112} YYSTYPE;
113
114#line 115 "parse.c"
115#define AREA257 257
116#define INTERFACE258 258
117#define ROUTERID259 259
118#define FIBPRIORITY260 260
119#define FIBUPDATE261 261
120#define REDISTRIBUTE262 262
121#define RTLABEL263 263
122#define RDOMAIN264 264
123#define STUB265 265
124#define ROUTER266 266
125#define SPFDELAY267 267
126#define SPFHOLDTIME268 268
127#define EXTTAG269 269
128#define METRIC270 270
129#define P2P271 271
130#define PASSIVE272 272
131#define HELLOINTERVAL273 273
132#define TRANSMITDELAY274 274
133#define RETRANSMITINTERVAL275 275
134#define ROUTERDEADTIME276 276
135#define ROUTERPRIORITY277 277
136#define SET278 278
137#define TYPE279 279
138#define YES280 280
139#define NO281 281
140#define DEMOTE282 282
141#define INCLUDE283 283
142#define ERROR284 284
143#define DEPEND285 285
144#define ON286 286
145#define STRING287 287
146#define NUMBER288 288
147#define YYERRCODE256 256
148const short yylhs[] =
149 { -1,
150 0, 0, 0, 0, 0, 0, 0, 11, 7, 7,
151 1, 1, 2, 2, 13, 12, 12, 12, 12, 12,
152 12, 12, 12, 12, 12, 9, 9, 3, 3, 3,
153 4, 4, 5, 5, 8, 8, 15, 15, 15, 15,
154 15, 15, 15, 16, 16, 18, 17, 17, 19, 14,
155 6, 6, 10, 10, 20, 20, 21, 21, 21, 24,
156 22, 23, 23, 23, 25, 25, 26, 26, 26, 26,
157};
158const short yylen[] =
159 { 2,
160 0, 3, 2, 3, 3, 3, 3, 2, 2, 1,
161 1, 1, 0, 1, 3, 2, 2, 2, 1, 4,
162 2, 2, 2, 3, 1, 5, 6, 0, 2, 7,
163 3, 1, 2, 2, 0, 3, 2, 2, 2, 2,
164 2, 2, 2, 2, 0, 2, 1, 0, 0, 7,
165 1, 0, 1, 1, 3, 2, 1, 3, 1, 0,
166 4, 4, 3, 0, 3, 2, 1, 2, 1, 1,
167};
168const short yydefred[] =
169 { 1,
170 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
171 0, 0, 0, 0, 0, 0, 0, 0, 14, 0,
172 0, 3, 0, 19, 0, 0, 0, 0, 25, 7,
173 54, 53, 49, 16, 17, 11, 12, 18, 0, 21,
174 0, 22, 23, 37, 41, 40, 42, 39, 38, 43,
175 8, 0, 0, 2, 4, 5, 6, 0, 0, 24,
176 10, 0, 0, 0, 0, 20, 9, 0, 0, 0,
177 0, 0, 0, 0, 0, 29, 0, 0, 26, 44,
178 0, 0, 59, 0, 0, 57, 27, 33, 34, 0,
179 0, 60, 0, 50, 0, 56, 0, 36, 0, 51,
180 58, 0, 55, 0, 32, 0, 61, 46, 47, 0,
181 0, 0, 30, 31, 67, 0, 63, 69, 70, 0,
182 0, 68, 62, 0, 66, 65,
183};
184const short yydgoto[] =
185 { 1,
186 38, 23, 70, 104, 76, 101, 62, 118, 24, 33,
187 25, 26, 27, 28, 83, 72, 111, 103, 58, 84,
188 85, 86, 107, 99, 120, 121,
189};
190const short yysindex[] =
191 { 0,
192 -10, 8, -272, -266, -259, -254, -256, -253, -233, -252,
193 -247, -245, -243, -242, -241, -240, -239, -237, 0, -226,
194 -11, 0, -200, 0, 54, 57, 63, 65, 0, 0,
195 0, 0, 0, 0, 0, 0, 0, 0, -193, 0,
196 -254, 0, 0, 0, 0, 0, 0, 0, 0, 0,
197 0, -209, -255, 0, 0, 0, 0, -44, -208, 0,
198 0, -206, -204, -196, 74, 0, 0, -196, 2, -198,
199 74, -219, -198, -203, -199, 0, -35, -195, 0, 0,
200 -197, -194, 0, -39, 74, 0, 0, 0, 0, 74,
201 -192, 0, -191, 0, 82, 0, -260, 0, -29, 0,
202 0, 74, 0, -7, 0, 74, 0, 0, 0, -27,
203 -260, -87, 0, 0, 0, -188, 0, 0, 0, -73,
204 74, 0, 0, 82, 0, 0,};
205const short yyrindex[] =
206 { 0,
207 -166, 0, 0, 0, 0, 0, 0, 0, 0, 0,
208 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
209 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
210 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
211 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
212 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
213 0, 90, 0, -9, -205, 0, 0, -9, -22, 92,
214 -121, 0, 92, 0, 0, 0, 0, 0, 0, 0,
215 0, 0, 0, 0, 40, 0, 0, 0, 0, -257,
216 0, 0, 10, 0, 0, 0, 0, 0, 20, 0,
217 0, -101, 0, -120, 0, -59, 0, 0, 0, 0,
218 0, 92, 0, 0, 0, 0, 0, 0, 0, 92,
219 -59, 0, 0, 0, 0, 0,};
220const short yygindex[] =
221 { 0,
222 62, 0, 36, 0, -86, 0, 0, -56, 0, 0,
223 0, 0, 0, 0, 5, -62, 0, -19, 0, 0,
224 22, 0, 0, 0, 0, -13,
225};
226#define YYTABLESIZE322 322
227const short yytable[] =
228 { 22,
229 28, 45, 71, 45, 45, 29, 77, 63, 80, 74,
230 105, 71, 45, 79, 31, 32, 87, 30, 75, 52,
231 34, 45, 96, 45, 114, 36, 37, 97, 35, 64,
232 39, 64, 41, 50, 40, 42, 109, 117, 81, 108,
233 43, 110, 44, 112, 45, 46, 47, 48, 49, 52,
234 12, 123, 45, 13, 14, 15, 16, 17, 125, 18,
235 51, 53, 82, 54, 45, 45, 55, 45, 45, 45,
236 45, 45, 56, 45, 57, 59, 45, 61, 65, 66,
237 67, 69, 68, 71, 88, 94, 78, 90, 89, 92,
238 91, 102, 93, 106, 98, 13, 100, 113, 122, 15,
239 45, 35, 60, 73, 126, 95, 124, 0, 0, 0,
240 0, 0, 0, 0, 0, 0, 119, 0, 0, 0,
241 0, 0, 0, 0, 119, 0, 0, 0, 0, 0,
242 0, 0, 0, 0, 52, 0, 45, 0, 0, 0,
243 0, 0, 0, 0, 64, 0, 0, 0, 45, 48,
244 45, 45, 45, 45, 45, 45, 45, 45, 48, 0,
245 45, 0, 0, 45, 45, 0, 0, 0, 45, 0,
246 45, 45, 45, 45, 45, 45, 0, 45, 0, 0,
247 45, 0, 12, 45, 115, 13, 14, 15, 16, 17,
248 0, 18, 0, 0, 116, 0, 12, 78, 115, 13,
249 14, 15, 16, 17, 0, 18, 0, 0, 116, 0,
250 45, 78, 45, 45, 45, 45, 45, 45, 81, 45,
251 0, 0, 45, 0, 0, 45, 0, 0, 0, 0,
252 12, 0, 0, 13, 14, 15, 16, 17, 0, 18,
253 0, 0, 82, 0, 0, 2, 3, 0, 4, 5,
254 6, 0, 7, 8, 9, 0, 10, 11, 0, 12,
255 0, 0, 13, 14, 15, 16, 17, 52, 18, 0,
256 19, 74, 20, 0, 0, 28, 21, 64, 0, 52,
257 75, 0, 52, 52, 52, 52, 52, 0, 52, 64,
258 0, 52, 64, 64, 64, 64, 64, 45, 64, 0,
259 0, 64, 0, 0, 0, 0, 0, 0, 0, 45,
260 0, 0, 45, 45, 45, 45, 45, 0, 45, 0,
261 0, 45,
262};
263const short yycheck[] =
264 { 10,
265 10, 123, 10, 125, 125, 1, 69, 263, 71, 270,
266 97, 10, 270, 70, 287, 288, 73, 10, 279, 10,
267 287, 279, 85, 125, 111, 280, 281, 90, 288, 10,
268 287, 287, 266, 271, 288, 288, 44, 125, 258, 102,
269 288, 104, 288, 106, 288, 288, 288, 288, 288, 61,
270 270, 125, 258, 273, 274, 275, 276, 277, 121, 279,
271 287, 262, 282, 10, 270, 125, 10, 273, 274, 275,
272 276, 277, 10, 279, 10, 269, 282, 287, 123, 288,
273 287, 278, 287, 10, 288, 125, 285, 123, 288, 287,
274 286, 10, 287, 123, 287, 262, 288, 125, 287, 10,
275 123, 10, 41, 68, 124, 84, 120, -1, -1, -1,
276 -1, -1, -1, -1, -1, -1, 112, -1, -1, -1,
277 -1, -1, -1, -1, 120, -1, -1, -1, -1, -1,
278 -1, -1, -1, -1, 125, -1, 258, -1, -1, -1,
279 -1, -1, -1, -1, 125, -1, -1, -1, 270, 270,
280 272, 273, 274, 275, 276, 277, 258, 279, 279, -1,
281 282, -1, -1, 285, 125, -1, -1, -1, 270, -1,
282 272, 273, 274, 275, 276, 277, -1, 279, -1, -1,
283 282, -1, 270, 285, 272, 273, 274, 275, 276, 277,
284 -1, 279, -1, -1, 282, -1, 270, 285, 272, 273,
285 274, 275, 276, 277, -1, 279, -1, -1, 282, -1,
286 270, 285, 272, 273, 274, 275, 276, 277, 258, 279,
287 -1, -1, 282, -1, -1, 285, -1, -1, -1, -1,
288 270, -1, -1, 273, 274, 275, 276, 277, -1, 279,
289 -1, -1, 282, -1, -1, 256, 257, -1, 259, 260,
290 261, -1, 263, 264, 265, -1, 267, 268, -1, 270,
291 -1, -1, 273, 274, 275, 276, 277, 258, 279, -1,
292 281, 270, 283, -1, -1, 285, 287, 258, -1, 270,
293 279, -1, 273, 274, 275, 276, 277, -1, 279, 270,
294 -1, 282, 273, 274, 275, 276, 277, 258, 279, -1,
295 -1, 282, -1, -1, -1, -1, -1, -1, -1, 270,
296 -1, -1, 273, 274, 275, 276, 277, -1, 279, -1,
297 -1, 282,
298};
299#define YYFINAL1 1
300#ifndef YYDEBUG0
301#define YYDEBUG0 0
302#endif
303#define YYMAXTOKEN288 288
304#if YYDEBUG0
305const char * const yyname[] =
306 {
307"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,
3080,0,0,0,0,0,0,0,0,0,0,0,0,"','",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'='",0,0,0,0,0,
3090,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
3100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'{'",0,"'}'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
3110,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
3120,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
3130,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"AREA",
314"INTERFACE","ROUTERID","FIBPRIORITY","FIBUPDATE","REDISTRIBUTE","RTLABEL",
315"RDOMAIN","STUB","ROUTER","SPFDELAY","SPFHOLDTIME","EXTTAG","METRIC","P2P",
316"PASSIVE","HELLOINTERVAL","TRANSMITDELAY","RETRANSMITINTERVAL","ROUTERDEADTIME",
317"ROUTERPRIORITY","SET","TYPE","YES","NO","DEMOTE","INCLUDE","ERROR","DEPEND",
318"ON","STRING","NUMBER",
319};
320const char * const yyrule[] =
321 {"$accept : grammar",
322"grammar :",
323"grammar : grammar include '\\n'",
324"grammar : grammar '\\n'",
325"grammar : grammar conf_main '\\n'",
326"grammar : grammar varset '\\n'",
327"grammar : grammar area '\\n'",
328"grammar : grammar error '\\n'",
329"include : INCLUDE STRING",
330"string : string STRING",
331"string : STRING",
332"yesno : YES",
333"yesno : NO",
334"no :",
335"no : NO",
336"varset : STRING '=' string",
337"conf_main : ROUTERID STRING",
338"conf_main : FIBPRIORITY NUMBER",
339"conf_main : FIBUPDATE yesno",
340"conf_main : redistribute",
341"conf_main : RTLABEL STRING EXTTAG NUMBER",
342"conf_main : RDOMAIN NUMBER",
343"conf_main : SPFDELAY NUMBER",
344"conf_main : SPFHOLDTIME NUMBER",
345"conf_main : STUB ROUTER yesno",
346"conf_main : defaults",
347"redistribute : no REDISTRIBUTE STRING optlist dependon",
348"redistribute : no REDISTRIBUTE RTLABEL STRING optlist dependon",
349"optlist :",
350"optlist : SET option",
351"optlist : SET optnl '{' optnl optlist_l optnl '}'",
352"optlist_l : optlist_l comma option",
353"optlist_l : option",
354"option : METRIC NUMBER",
355"option : TYPE NUMBER",
356"dependon :",
357"dependon : DEPEND ON STRING",
358"defaults : METRIC NUMBER",
359"defaults : ROUTERPRIORITY NUMBER",
360"defaults : ROUTERDEADTIME NUMBER",
361"defaults : TRANSMITDELAY NUMBER",
362"defaults : HELLOINTERVAL NUMBER",
363"defaults : RETRANSMITINTERVAL NUMBER",
364"defaults : TYPE P2P",
365"optnl : '\\n' optnl",
366"optnl :",
367"nl : '\\n' optnl",
368"comma : ','",
369"comma :",
370"$$1 :",
371"area : AREA areaid $$1 '{' optnl areaopts_l '}'",
372"demotecount : NUMBER",
373"demotecount :",
374"areaid : NUMBER",
375"areaid : STRING",
376"areaopts_l : areaopts_l areaoptsl nl",
377"areaopts_l : areaoptsl optnl",
378"areaoptsl : interface",
379"areaoptsl : DEMOTE STRING demotecount",
380"areaoptsl : defaults",
381"$$2 :",
382"interface : INTERFACE STRING $$2 interface_block",
383"interface_block : '{' optnl interfaceopts_l '}'",
384"interface_block : '{' optnl '}'",
385"interface_block :",
386"interfaceopts_l : interfaceopts_l interfaceoptsl nl",
387"interfaceopts_l : interfaceoptsl optnl",
388"interfaceoptsl : PASSIVE",
389"interfaceoptsl : DEMOTE STRING",
390"interfaceoptsl : dependon",
391"interfaceoptsl : defaults",
392};
393#endif
394#ifdef YYSTACKSIZE10000
395#undef YYMAXDEPTH10000
396#define YYMAXDEPTH10000 YYSTACKSIZE10000
397#else
398#ifdef YYMAXDEPTH10000
399#define YYSTACKSIZE10000 YYMAXDEPTH10000
400#else
401#define YYSTACKSIZE10000 10000
402#define YYMAXDEPTH10000 10000
403#endif
404#endif
405#define YYINITSTACKSIZE200 200
406/* LINTUSED */
407int yydebug;
408int yynerrs;
409int yyerrflag;
410int yychar;
411short *yyssp;
412YYSTYPE *yyvsp;
413YYSTYPE yyval;
414YYSTYPE yylval;
415short *yyss;
416short *yysslim;
417YYSTYPE *yyvs;
418unsigned int yystacksize;
419int yyparse(void);
420#line 609 "/usr/src/usr.sbin/ospf6d/parse.y"
421
422struct keywords {
423 const char *k_name;
424 int k_val;
425};
426
427int
428yyerror(const char *fmt, ...)
429{
430 va_list ap;
431 char *msg;
432
433 file->errors++;
434 va_start(ap, fmt)__builtin_va_start(ap, fmt);
435 if (vasprintf(&msg, fmt, ap) == -1)
436 fatalx("yyerror vasprintf");
437 va_end(ap)__builtin_va_end(ap);
438 logit(LOG_CRIT2, "%s:%d: %s", file->name, yylval.lineno, msg);
439 free(msg);
440 return (0);
441}
442
443int
444kw_cmp(const void *k, const void *e)
445{
446 return (strcmp(k, ((const struct keywords *)e)->k_name));
447}
448
449int
450lookup(char *s)
451{
452 /* this has to be sorted always */
453 static const struct keywords keywords[] = {
454 {"area", AREA257},
455 {"demote", DEMOTE282},
456 {"depend", DEPEND285},
457 {"external-tag", EXTTAG269},
458 {"fib-priority", FIBPRIORITY260},
459 {"fib-update", FIBUPDATE261},
460 {"hello-interval", HELLOINTERVAL273},
461 {"include", INCLUDE283},
462 {"interface", INTERFACE258},
463 {"metric", METRIC270},
464 {"no", NO281},
465 {"on", ON286},
466 {"p2p", P2P271},
467 {"passive", PASSIVE272},
468 {"rdomain", RDOMAIN264},
469 {"redistribute", REDISTRIBUTE262},
470 {"retransmit-interval", RETRANSMITINTERVAL275},
471 {"router", ROUTER266},
472 {"router-dead-time", ROUTERDEADTIME276},
473 {"router-id", ROUTERID259},
474 {"router-priority", ROUTERPRIORITY277},
475 {"rtlabel", RTLABEL263},
476 {"set", SET278},
477 {"spf-delay", SPFDELAY267},
478 {"spf-holdtime", SPFHOLDTIME268},
479 {"stub", STUB265},
480 {"transmit-delay", TRANSMITDELAY274},
481 {"type", TYPE279},
482 {"yes", YES280}
483 };
484 const struct keywords *p;
485
486 p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]),
487 sizeof(keywords[0]), kw_cmp);
488
489 if (p)
490 return (p->k_val);
491 else
492 return (STRING287);
493}
494
495#define START_EXPAND1 1
496#define DONE_EXPAND2 2
497
498static int expanding;
499
500int
501igetc(void)
502{
503 int c;
504
505 while (1) {
506 if (file->ungetpos > 0)
507 c = file->ungetbuf[--file->ungetpos];
508 else
509 c = getc(file->stream)(!__isthreaded ? (--(file->stream)->_r < 0 ? __srget
(file->stream) : (int)(*(file->stream)->_p++)) : (getc
)(file->stream));
510
511 if (c == START_EXPAND1)
512 expanding = 1;
513 else if (c == DONE_EXPAND2)
514 expanding = 0;
515 else
516 break;
517 }
518 return (c);
519}
520
521int
522lgetc(int quotec)
523{
524 int c, next;
525
526 if (quotec) {
527 if ((c = igetc()) == EOF(-1)) {
528 yyerror("reached end of file while parsing "
529 "quoted string");
530 if (file == topfile || popfile() == EOF(-1))
531 return (EOF(-1));
532 return (quotec);
533 }
534 return (c);
535 }
536
537 while ((c = igetc()) == '\\') {
538 next = igetc();
539 if (next != '\n') {
540 c = next;
541 break;
542 }
543 yylval.lineno = file->lineno;
544 file->lineno++;
545 }
546
547 if (c == EOF(-1)) {
548 /*
549 * Fake EOL when hit EOF for the first time. This gets line
550 * count right if last line in included file is syntactically
551 * invalid and has no newline.
552 */
553 if (file->eof_reached == 0) {
554 file->eof_reached = 1;
555 return ('\n');
556 }
557 while (c == EOF(-1)) {
558 if (file == topfile || popfile() == EOF(-1))
559 return (EOF(-1));
560 c = igetc();
561 }
562 }
563 return (c);
564}
565
566void
567lungetc(int c)
568{
569 if (c == EOF(-1))
570 return;
571
572 if (file->ungetpos >= file->ungetsize) {
573 void *p = reallocarray(file->ungetbuf, file->ungetsize, 2);
574 if (p == NULL((void*)0))
575 err(1, "%s", __func__);
576 file->ungetbuf = p;
577 file->ungetsize *= 2;
578 }
579 file->ungetbuf[file->ungetpos++] = c;
580}
581
582int
583findeol(void)
584{
585 int c;
586
587 /* skip to either EOF or the first real EOL */
588 while (1) {
589 c = lgetc(0);
590 if (c == '\n') {
591 file->lineno++;
592 break;
593 }
594 if (c == EOF(-1))
595 break;
596 }
597 return (ERROR284);
598}
599
600int
601yylex(void)
602{
603 char buf[8096];
604 char *p, *val;
605 int quotec, next, c;
606 int token;
607
608top:
609 p = buf;
610 while ((c = lgetc(0)) == ' ' || c == '\t')
611 ; /* nothing */
612
613 yylval.lineno = file->lineno;
614 if (c == '#')
615 while ((c = lgetc(0)) != '\n' && c != EOF(-1))
616 ; /* nothing */
617 if (c == '$' && !expanding) {
618 while (1) {
619 if ((c = lgetc(0)) == EOF(-1))
620 return (0);
621
622 if (p + 1 >= buf + sizeof(buf) - 1) {
623 yyerror("string too long");
624 return (findeol());
625 }
626 if (isalnum(c) || c == '_') {
627 *p++ = c;
628 continue;
629 }
630 *p = '\0';
631 lungetc(c);
632 break;
633 }
634 val = symget(buf);
635 if (val == NULL((void*)0)) {
636 yyerror("macro '%s' not defined", buf);
637 return (findeol());
638 }
639 p = val + strlen(val) - 1;
640 lungetc(DONE_EXPAND2);
641 while (p >= val) {
642 lungetc((unsigned char)*p);
643 p--;
644 }
645 lungetc(START_EXPAND1);
646 goto top;
647 }
648
649 switch (c) {
650 case '\'':
651 case '"':
652 quotec = c;
653 while (1) {
654 if ((c = lgetc(quotec)) == EOF(-1))
655 return (0);
656 if (c == '\n') {
657 file->lineno++;
658 continue;
659 } else if (c == '\\') {
660 if ((next = lgetc(quotec)) == EOF(-1))
661 return (0);
662 if (next == quotec || next == ' ' ||
663 next == '\t')
664 c = next;
665 else if (next == '\n') {
666 file->lineno++;
667 continue;
668 } else
669 lungetc(next);
670 } else if (c == quotec) {
671 *p = '\0';
672 break;
673 } else if (c == '\0') {
674 yyerror("syntax error");
675 return (findeol());
676 }
677 if (p + 1 >= buf + sizeof(buf) - 1) {
678 yyerror("string too long");
679 return (findeol());
680 }
681 *p++ = c;
682 }
683 yylval.v.string = strdup(buf);
684 if (yylval.v.string == NULL((void*)0))
685 err(1, "%s", __func__);
686 return (STRING287);
687 }
688
689#define allowed_to_end_number(x)(isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' ||
x == '=') \
690 (isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=')
691
692 if (c == '-' || isdigit(c)) {
693 do {
694 *p++ = c;
695 if ((size_t)(p-buf) >= sizeof(buf)) {
696 yyerror("string too long");
697 return (findeol());
698 }
699 } while ((c = lgetc(0)) != EOF(-1) && isdigit(c));
700 lungetc(c);
701 if (p == buf + 1 && buf[0] == '-')
702 goto nodigits;
703 if (c == EOF(-1) || allowed_to_end_number(c)(isspace(c) || c == ')' || c ==',' || c == '/' || c == '}' ||
c == '=')) {
704 const char *errstr = NULL((void*)0);
705
706 *p = '\0';
707 yylval.v.number = strtonum(buf, LLONG_MIN(-9223372036854775807LL -1LL),
708 LLONG_MAX9223372036854775807LL, &errstr);
709 if (errstr) {
710 yyerror("\"%s\" invalid number: %s",
711 buf, errstr);
712 return (findeol());
713 }
714 return (NUMBER288);
715 } else {
716nodigits:
717 while (p > buf + 1)
718 lungetc((unsigned char)*--p);
719 c = (unsigned char)*--p;
720 if (c == '-')
721 return (c);
722 }
723 }
724
725#define allowed_in_string(x)(isalnum(x) || (ispunct(x) && x != '(' && x !=
')' && x != '{' && x != '}' && x != '!'
&& x != '=' && x != '#' && x != ',')
) \
726 (isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
727 x != '{' && x != '}' && \
728 x != '!' && x != '=' && x != '#' && \
729 x != ','))
730
731 if (isalnum(c) || c == ':' || c == '_') {
732 do {
733 *p++ = c;
734 if ((size_t)(p-buf) >= sizeof(buf)) {
735 yyerror("string too long");
736 return (findeol());
737 }
738 } while ((c = lgetc(0)) != EOF(-1) && (allowed_in_string(c)(isalnum(c) || (ispunct(c) && c != '(' && c !=
')' && c != '{' && c != '}' && c != '!'
&& c != '=' && c != '#' && c != ',')
)));
739 lungetc(c);
740 *p = '\0';
741 if ((token = lookup(buf)) == STRING287)
742 if ((yylval.v.string = strdup(buf)) == NULL((void*)0))
743 err(1, "%s", __func__);
744 return (token);
745 }
746 if (c == '\n') {
747 yylval.lineno = file->lineno;
748 file->lineno++;
749 }
750 if (c == EOF(-1))
751 return (0);
752 return (c);
753}
754
755int
756check_file_secrecy(int fd, const char *fname)
757{
758 struct stat st;
759
760 if (fstat(fd, &st)) {
761 log_warn("cannot stat %s", fname);
762 return (-1);
763 }
764 if (st.st_uid != 0 && st.st_uid != getuid()) {
765 log_warnx("%s: owner not root or current user", fname);
766 return (-1);
767 }
768 if (st.st_mode & (S_IWGRP0000020 | S_IXGRP0000010 | S_IRWXO0000007)) {
769 log_warnx("%s: group writable or world read/writable", fname);
770 return (-1);
771 }
772 return (0);
773}
774
775struct file *
776pushfile(const char *name, int secret)
777{
778 struct file *nfile;
779
780 if ((nfile = calloc(1, sizeof(struct file))) == NULL((void*)0)) {
781 log_warn("%s", __func__);
782 return (NULL((void*)0));
783 }
784 if ((nfile->name = strdup(name)) == NULL((void*)0)) {
785 log_warn("%s", __func__);
786 free(nfile);
787 return (NULL((void*)0));
788 }
789 if ((nfile->stream = fopen(nfile->name, "r")) == NULL((void*)0)) {
790 log_warn("%s: %s", __func__, nfile->name);
791 free(nfile->name);
792 free(nfile);
793 return (NULL((void*)0));
794 } else if (secret &&
795 check_file_secrecy(fileno(nfile->stream)(!__isthreaded ? ((nfile->stream)->_file) : (fileno)(nfile
->stream)), nfile->name)) {
796 fclose(nfile->stream);
797 free(nfile->name);
798 free(nfile);
799 return (NULL((void*)0));
800 }
801 nfile->lineno = TAILQ_EMPTY(&files)(((&files)->tqh_first) == ((void*)0)) ? 1 : 0;
802 nfile->ungetsize = 16;
803 nfile->ungetbuf = malloc(nfile->ungetsize);
804 if (nfile->ungetbuf == NULL((void*)0)) {
805 log_warn("%s", __func__);
806 fclose(nfile->stream);
807 free(nfile->name);
808 free(nfile);
809 return (NULL((void*)0));
810 }
811 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);
812 return (nfile);
813}
814
815int
816popfile(void)
817{
818 struct file *prev;
819
820 if ((prev = TAILQ_PREV(file, files, entry)(*(((struct files *)((file)->entry.tqe_prev))->tqh_last
))) != NULL((void*)0))
821 prev->errors += file->errors;
822
823 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);
824 fclose(file->stream);
825 free(file->name);
826 free(file->ungetbuf);
827 free(file);
828 file = prev;
829 return (file ? 0 : EOF(-1));
830}
831
832struct ospfd_conf *
833parse_config(char *filename, int opts)
834{
835 struct sym *sym, *next;
836
837 if ((conf = calloc(1, sizeof(struct ospfd_conf))) == NULL((void*)0))
838 fatal("parse_config");
839 conf->opts = opts;
840 if (conf->opts & OSPFD_OPT_STUB_ROUTER0x00000008)
841 conf->flags |= OSPFD_FLAG_STUB_ROUTER0x0002;
842
843 bzero(&globaldefs, sizeof(globaldefs));
844 defs = &globaldefs;
845 defs->dead_interval = DEFAULT_RTR_DEAD_TIME40;
846 defs->transmit_delay = DEFAULT_TRANSMIT_DELAY1;
847 defs->hello_interval = DEFAULT_HELLO_INTERVAL10;
848 defs->rxmt_interval = DEFAULT_RXMT_INTERVAL5;
849 defs->metric = DEFAULT_METRIC10;
850 defs->priority = DEFAULT_PRIORITY1;
851 defs->p2p = 0;
852
853 conf->spf_delay = DEFAULT_SPF_DELAY1;
854 conf->spf_hold_time = DEFAULT_SPF_HOLDTIME5;
855 conf->spf_state = SPF_IDLE;
856 conf->fib_priority = RTP_OSPF32;
857
858 if ((file = pushfile(filename,
859 !(conf->opts & OSPFD_OPT_NOACTION0x00000004))) == NULL((void*)0)) {
860 free(conf);
861 return (NULL((void*)0));
862 }
863 topfile = file;
864
865 LIST_INIT(&conf->area_list)do { ((&conf->area_list)->lh_first) = ((void*)0); }
while (0);
866 LIST_INIT(&conf->cand_list)do { ((&conf->cand_list)->lh_first) = ((void*)0); }
while (0);
867 SIMPLEQ_INIT(&conf->redist_list)do { (&conf->redist_list)->sqh_first = ((void*)0); (
&conf->redist_list)->sqh_last = &(&conf->
redist_list)->sqh_first; } while (0);
868
869 yyparse();
870 errors = file->errors;
871 popfile();
872
873 /* Free macros and check which have not been used. */
874 TAILQ_FOREACH_SAFE(sym, &symhead, entry, next)for ((sym) = ((&symhead)->tqh_first); (sym) != ((void*
)0) && ((next) = ((sym)->entry.tqe_next), 1); (sym
) = (next)) {
875 if ((conf->opts & OSPFD_OPT_VERBOSE20x00000002) && !sym->used)
876 fprintf(stderr(&__sF[2]), "warning: macro '%s' not "
877 "used\n", sym->nam);
878 if (!sym->persist) {
879 free(sym->nam);
880 free(sym->val);
881 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);
882 free(sym);
883 }
884 }
885
886 /* check that all interfaces belong to the configured rdomain */
887 errors += conf_check_rdomain(conf->rdomain);
888
889 if (errors) {
890 clear_config(conf);
891 return (NULL((void*)0));
892 }
893
894 if (conf->rtr_id.s_addr == 0)
895 conf->rtr_id.s_addr = get_rtr_id();
896
897 return (conf);
898}
899
900int
901symset(const char *nam, const char *val, int persist)
902{
903 struct sym *sym;
904
905 TAILQ_FOREACH(sym, &symhead, entry)for((sym) = ((&symhead)->tqh_first); (sym) != ((void*)
0); (sym) = ((sym)->entry.tqe_next)) {
906 if (strcmp(nam, sym->nam) == 0)
907 break;
908 }
909
910 if (sym != NULL((void*)0)) {
911 if (sym->persist == 1)
912 return (0);
913 else {
914 free(sym->nam);
915 free(sym->val);
916 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);
917 free(sym);
918 }
919 }
920 if ((sym = calloc(1, sizeof(*sym))) == NULL((void*)0))
921 return (-1);
922
923 sym->nam = strdup(nam);
924 if (sym->nam == NULL((void*)0)) {
925 free(sym);
926 return (-1);
927 }
928 sym->val = strdup(val);
929 if (sym->val == NULL((void*)0)) {
930 free(sym->nam);
931 free(sym);
932 return (-1);
933 }
934 sym->used = 0;
935 sym->persist = persist;
936 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);
937 return (0);
938}
939
940int
941cmdline_symset(char *s)
942{
943 char *sym, *val;
944 int ret;
945
946 if ((val = strrchr(s, '=')) == NULL((void*)0))
947 return (-1);
948 sym = strndup(s, val - s);
949 if (sym == NULL((void*)0))
950 errx(1, "%s: strndup", __func__);
951 ret = symset(sym, val + 1, 1);
952 free(sym);
953
954 return (ret);
955}
956
957char *
958symget(const char *nam)
959{
960 struct sym *sym;
961
962 TAILQ_FOREACH(sym, &symhead, entry)for((sym) = ((&symhead)->tqh_first); (sym) != ((void*)
0); (sym) = ((sym)->entry.tqe_next)) {
963 if (strcmp(nam, sym->nam) == 0) {
964 sym->used = 1;
965 return (sym->val);
966 }
967 }
968 return (NULL((void*)0));
969}
970
971struct area *
972conf_get_area(struct in_addr id)
973{
974 struct area *a;
975
976 a = area_find(conf, id);
977 if (a)
978 return (a);
979 a = area_new();
980 LIST_INSERT_HEAD(&conf->area_list, a, entry)do { if (((a)->entry.le_next = (&conf->area_list)->
lh_first) != ((void*)0)) (&conf->area_list)->lh_first
->entry.le_prev = &(a)->entry.le_next; (&conf->
area_list)->lh_first = (a); (a)->entry.le_prev = &(
&conf->area_list)->lh_first; } while (0);
981
982 a->id.s_addr = id.s_addr;
983
984 return (a);
985}
986
987int
988conf_check_rdomain(u_int rdomain)
989{
990 struct area *a;
991 struct iface *i, *idep;
992 struct redistribute *r;
993 int errs = 0;
994
995 SIMPLEQ_FOREACH(r, &conf->redist_list, entry)for((r) = ((&conf->redist_list)->sqh_first); (r) !=
((void*)0); (r) = ((r)->entry.sqe_next))
996 if (r->dependon[0] != '\0') {
997 idep = if_findname(r->dependon);
998 if (idep->rdomain != rdomain) {
999 logit(LOG_CRIT2,
1000 "depend on %s: interface not in rdomain %u",
1001 idep->name, rdomain);
1002 errs++;
1003 }
1004 }
1005
1006 LIST_FOREACH(a, &conf->area_list, entry)for((a) = ((&conf->area_list)->lh_first); (a)!= ((void
*)0); (a) = ((a)->entry.le_next))
1007 LIST_FOREACH(i, &a->iface_list, entry)for((i) = ((&a->iface_list)->lh_first); (i)!= ((void
*)0); (i) = ((i)->entry.le_next)) {
1008 if (i->rdomain != rdomain) {
1009 logit(LOG_CRIT2,
1010 "interface %s not in rdomain %u",
1011 i->name, rdomain);
1012 errs++;
1013 }
1014 if (i->dependon[0] != '\0') {
1015 idep = if_findname(i->dependon);
1016 if (idep->rdomain != rdomain) {
1017 logit(LOG_CRIT2,
1018 "depend on %s: interface not in "
1019 "rdomain %u",
1020 idep->name, rdomain);
1021 errs++;
1022 }
1023 }
1024 }
1025
1026 return (errs);
1027}
1028
1029void
1030conf_clear_redist_list(struct redist_list *rl)
1031{
1032 struct redistribute *r;
1033 while ((r = SIMPLEQ_FIRST(rl)((rl)->sqh_first)) != NULL((void*)0)) {
1034 SIMPLEQ_REMOVE_HEAD(rl, entry)do { if (((rl)->sqh_first = (rl)->sqh_first->entry.sqe_next
) == ((void*)0)) (rl)->sqh_last = &(rl)->sqh_first;
} while (0);
1035 free(r);
1036 }
1037}
1038
1039void
1040clear_config(struct ospfd_conf *xconf)
1041{
1042 struct area *a;
1043
1044 while ((a = LIST_FIRST(&xconf->area_list)((&xconf->area_list)->lh_first)) != NULL((void*)0)) {
1045 LIST_REMOVE(a, entry)do { if ((a)->entry.le_next != ((void*)0)) (a)->entry.le_next
->entry.le_prev = (a)->entry.le_prev; *(a)->entry.le_prev
= (a)->entry.le_next; ; ; } while (0);
1046 area_del(a);
1047 }
1048
1049 conf_clear_redist_list(&xconf->redist_list);
1050
1051 free(xconf);
1052}
1053
1054u_int32_t
1055get_rtr_id(void)
1056{
1057 struct ifaddrs *ifap, *ifa;
1058 u_int32_t ip = 0, cur, localnet;
1059
1060 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))));
1061
1062 if (getifaddrs(&ifap) == -1)
1063 fatal("getifaddrs");
1064
1065 for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
1066 if (strncmp(ifa->ifa_name, "carp", 4) == 0)
1067 continue;
1068 if (ifa->ifa_addr == NULL((void*)0) ||
1069 ifa->ifa_addr->sa_family != AF_INET2)
1070 continue;
1071 cur = ((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr;
1072 if ((cur & localnet) == localnet) /* skip 127/8 */
1073 continue;
1074 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)
1075 ip = cur;
1076 }
1077 freeifaddrs(ifap);
1078
1079 if (ip == 0)
1080 fatal("router-id is 0.0.0.0");
1081
1082 return (ip);
1083}
1084
1085int
1086host(const char *s, struct in6_addr *addr)
1087{
1088 struct addrinfo hints, *r;
1089
1090 if (s == NULL((void*)0))
1091 return (0);
1092
1093 bzero(addr, sizeof(struct in6_addr));
1094 bzero(&hints, sizeof(hints));
1095 hints.ai_family = AF_INET624;
1096 hints.ai_socktype = SOCK_DGRAM2; /*dummy*/
1097 hints.ai_flags = AI_NUMERICHOST4;
1098 if (getaddrinfo(s, "0", &hints, &r) == 0) {
1099 *addr = ((struct sockaddr_in6 *)r->ai_addr)->sin6_addr;
1100 /* XXX address scope !!! */
1101 /* ((struct sockaddr_in6 *)r->ai_addr)->sin6_scope_id */
1102 freeaddrinfo(r);
1103 return (1);
1104 }
1105 return (0);
1106}
1107
1108int
1109prefix(const char *s, struct in6_addr *addr, u_int8_t *plen)
1110{
1111 char *p, *ps;
1112 const char *errstr;
1113 int mask;
1114
1115 if (s == NULL((void*)0))
1116 return (0);
1117
1118 if ((p = strrchr(s, '/')) != NULL((void*)0)) {
1119 mask = strtonum(p + 1, 0, 128, &errstr);
1120 if (errstr)
1121 errx(1, "invalid netmask: %s", errstr);
1122
1123 if ((ps = malloc(strlen(s) - strlen(p) + 1)) == NULL((void*)0))
1124 err(1, "%s", __func__);
1125 strlcpy(ps, s, strlen(s) - strlen(p) + 1);
1126
1127 if (host(ps, addr) == 0) {
1128 free(ps);
1129 return (0);
1130 }
1131
1132 inet6applymask(addr, addr, mask);
1133 *plen = mask;
1134 return (1);
1135 }
1136 *plen = 128;
1137 return (host(s, addr));
1138}
1139#line 1132 "parse.c"
1140/* allocate initial stack or double stack size, up to YYMAXDEPTH */
1141static int yygrowstack(void)
1142{
1143 unsigned int newsize;
1144 long sslen;
1145 short *newss;
1146 YYSTYPE *newvs;
1147
1148 if ((newsize = yystacksize) == 0)
3
←
Assuming the condition is false
→
4
←
Taking false branch
→
1149 newsize = YYINITSTACKSIZE200;
1150 else if (newsize >= YYMAXDEPTH10000)
5
←
Assuming 'newsize' is < YYMAXDEPTH
→
6
←
Taking false branch
→
1151 return -1;
1152 else if ((newsize *= 2) > YYMAXDEPTH10000)
7
←
Assuming the condition is false
→
8
←
Taking false branch
→
1153 newsize = YYMAXDEPTH10000;
1154 sslen = yyssp - yyss;
1155#ifdef SIZE_MAX0xffffffffffffffffUL
1156#define YY_SIZE_MAX0xffffffffffffffffUL SIZE_MAX0xffffffffffffffffUL
1157#else
1158#define YY_SIZE_MAX0xffffffffffffffffUL 0xffffffffU
1159#endif
1160 if (newsize && YY_SIZE_MAX0xffffffffffffffffUL / newsize < sizeof *newss)
9
←
Assuming 'newsize' is 0
→
1161 goto bail;
1162 newss = (short *)realloc(yyss, newsize * sizeof *newss);
1163 if (newss == NULL((void*)0))
10
←
Assuming 'newss' is not equal to NULL
→
11
←
Taking false branch
→
1164 goto bail;
1165 yyss = newss;
1166 yyssp = newss + sslen;
1167 if (newsize
11.1
'newsize' is 0
 && YY_SIZE_MAX0xffffffffffffffffUL / newsize < sizeof *newvs)
1168 goto bail;
1169 newvs = (YYSTYPE *)realloc(yyvs, newsize * sizeof *newvs);
1170 if (newvs == NULL((void*)0))
12
←
Assuming 'newvs' is not equal to NULL
→
13
←
Taking false branch
→
1171 goto bail;
1172 yyvs = newvs;
1173 yyvsp = newvs + sslen;
1174 yystacksize = newsize;
1175 yysslim = yyss + newsize - 1;
1176 return 0;
1177bail:
1178 if (yyss)
1179 free(yyss);
1180 if (yyvs)
1181 free(yyvs);
1182 yyss = yyssp = NULL((void*)0);
1183 yyvs = yyvsp = NULL((void*)0);
1184 yystacksize = 0;
1185 return -1;
1186}
1187
1188#define YYABORTgoto yyabort goto yyabort
1189#define YYREJECTgoto yyabort goto yyabort
1190#define YYACCEPTgoto yyaccept goto yyaccept
1191#define YYERRORgoto yyerrlab goto yyerrlab
1192int
1193yyparse(void)
1194{
1195 int yym, yyn, yystate;
1196#if YYDEBUG0
1197 const char *yys;
1198
1199 if ((yys = getenv("YYDEBUG")))
1200 {
1201 yyn = *yys;
1202 if (yyn >= '0' && yyn <= '9')
1203 yydebug = yyn - '0';
1204 }
1205#endif /* YYDEBUG */
1206
1207 yynerrs = 0;
1208 yyerrflag = 0;
1209 yychar = (-1);
1210
1211 if (yyss == NULL((void*)0) && yygrowstack()) goto yyoverflow;
1
Assuming 'yyss' is equal to NULL
→
2
←
Calling 'yygrowstack'
→
14
←
Returning from 'yygrowstack'
→
15
←
Taking false branch
→
1212 yyssp = yyss;
1213 yyvsp = yyvs;
1214 *yyssp = yystate = 0;
16
←
Use of zero-allocated memory
1215
1216yyloop:
1217 if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
1218 if (yychar < 0)
1219 {
1220 if ((yychar = yylex()) < 0) yychar = 0;
1221#if YYDEBUG0
1222 if (yydebug)
1223 {
1224 yys = 0;
1225 if (yychar <= YYMAXTOKEN288) yys = yyname[yychar];
1226 if (!yys) yys = "illegal-symbol";
1227 printf("%sdebug: state %d, reading %d (%s)\n",
1228 YYPREFIX"yy", yystate, yychar, yys);
1229 }
1230#endif
1231 }
1232 if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&
1233 yyn <= YYTABLESIZE322 && yycheck[yyn] == yychar)
1234 {
1235#if YYDEBUG0
1236 if (yydebug)
1237 printf("%sdebug: state %d, shifting to state %d\n",
1238 YYPREFIX"yy", yystate, yytable[yyn]);
1239#endif
1240 if (yyssp >= yysslim && yygrowstack())
1241 {
1242 goto yyoverflow;
1243 }
1244 *++yyssp = yystate = yytable[yyn];
1245 *++yyvsp = yylval;
1246 yychar = (-1);
1247 if (yyerrflag > 0) --yyerrflag;
1248 goto yyloop;
1249 }
1250 if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&
1251 yyn <= YYTABLESIZE322 && yycheck[yyn] == yychar)
1252 {
1253 yyn = yytable[yyn];
1254 goto yyreduce;
1255 }
1256 if (yyerrflag) goto yyinrecovery;
1257#if defined(__GNUC__4)
1258 goto yynewerror;
1259#endif
1260yynewerror:
1261 yyerror("syntax error");
1262#if defined(__GNUC__4)
1263 goto yyerrlab;
1264#endif
1265yyerrlab:
1266 ++yynerrs;
1267yyinrecovery:
1268 if (yyerrflag < 3)
1269 {
1270 yyerrflag = 3;
1271 for (;;)
1272 {
1273 if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE256) >= 0 &&
1274 yyn <= YYTABLESIZE322 && yycheck[yyn] == YYERRCODE256)
1275 {
1276#if YYDEBUG0
1277 if (yydebug)
1278 printf("%sdebug: state %d, error recovery shifting\
1279 to state %d\n", YYPREFIX"yy", *yyssp, yytable[yyn]);
1280#endif
1281 if (yyssp >= yysslim && yygrowstack())
1282 {
1283 goto yyoverflow;
1284 }
1285 *++yyssp = yystate = yytable[yyn];
1286 *++yyvsp = yylval;
1287 goto yyloop;
1288 }
1289 else
1290 {
1291#if YYDEBUG0
1292 if (yydebug)
1293 printf("%sdebug: error recovery discarding state %d\n",
1294 YYPREFIX"yy", *yyssp);
1295#endif
1296 if (yyssp <= yyss) goto yyabort;
1297 --yyssp;
1298 --yyvsp;
1299 }
1300 }
1301 }
1302 else
1303 {
1304 if (yychar == 0) goto yyabort;
1305#if YYDEBUG0
1306 if (yydebug)
1307 {
1308 yys = 0;
1309 if (yychar <= YYMAXTOKEN288) yys = yyname[yychar];
1310 if (!yys) yys = "illegal-symbol";
1311 printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
1312 YYPREFIX"yy", yystate, yychar, yys);
1313 }
1314#endif
1315 yychar = (-1);
1316 goto yyloop;
1317 }
1318yyreduce:
1319#if YYDEBUG0
1320 if (yydebug)
1321 printf("%sdebug: state %d, reducing by rule %d (%s)\n",
1322 YYPREFIX"yy", yystate, yyn, yyrule[yyn]);
1323#endif
1324 yym = yylen[yyn];
1325 if (yym)
1326 yyval = yyvsp[1-yym];
1327 else
1328 memset(&yyval, 0, sizeof yyval);
1329 switch (yyn)
1330 {
1331case 7:
1332#line 154 "/usr/src/usr.sbin/ospf6d/parse.y"
1333{ file->errors++; }
1334break;
1335case 8:
1336#line 157 "/usr/src/usr.sbin/ospf6d/parse.y"
1337{
1338 struct file *nfile;
1339
1340 if ((nfile = pushfile(yyvsp[0].v.string,
1341 !(conf->opts & OSPFD_OPT_NOACTION0x00000004))) == NULL((void*)0)) {
1342 yyerror("failed to include file %s", yyvsp[0].v.string);
1343 free(yyvsp[0].v.string);
1344 YYERRORgoto yyerrlab;
1345 }
1346 free(yyvsp[0].v.string);
1347
1348 file = nfile;
1349 lungetc('\n');
1350 }
1351break;
1352case 9:
1353#line 173 "/usr/src/usr.sbin/ospf6d/parse.y"
1354{
1355 if (asprintf(&yyval.v.string, "%s %s", yyvsp[-1].v.string, yyvsp[0].v.string) == -1) {
1356 free(yyvsp[-1].v.string);
1357 free(yyvsp[0].v.string);
1358 yyerror("string: asprintf");
1359 YYERRORgoto yyerrlab;
1360 }
1361 free(yyvsp[-1].v.string);
1362 free(yyvsp[0].v.string);
1363 }
1364break;
1365case 11:
1366#line 186 "/usr/src/usr.sbin/ospf6d/parse.y"
1367{ yyval.v.number = 1; }
1368break;
1369case 12:
1370#line 187 "/usr/src/usr.sbin/ospf6d/parse.y"
1371{ yyval.v.number = 0; }
1372break;
1373case 13:
1374#line 190 "/usr/src/usr.sbin/ospf6d/parse.y"
1375{ yyval.v.number = 0; }
1376break;
1377case 14:
1378#line 191 "/usr/src/usr.sbin/ospf6d/parse.y"
1379{ yyval.v.number = 1; }
1380break;
1381case 15:
1382#line 193 "/usr/src/usr.sbin/ospf6d/parse.y"
1383{
1384 char *s = yyvsp[-2].v.string;
1385 if (conf->opts & OSPFD_OPT_VERBOSE0x00000001)
1386 printf("%s = \"%s\"\n", yyvsp[-2].v.string, yyvsp[0].v.string);
1387 while (*s++) {
1388 if (isspace((unsigned char)*s)) {
1389 yyerror("macro name cannot contain "
1390 "whitespace");
1391 free(yyvsp[-2].v.string);
1392 free(yyvsp[0].v.string);
1393 YYERRORgoto yyerrlab;
1394 }
1395 }
1396 if (symset(yyvsp[-2].v.string, yyvsp[0].v.string, 0) == -1)
1397 fatal("cannot store variable");
1398 free(yyvsp[-2].v.string);
1399 free(yyvsp[0].v.string);
1400 }
1401break;
1402case 16:
1403#line 213 "/usr/src/usr.sbin/ospf6d/parse.y"
1404{
1405 if (!inet_aton(yyvsp[0].v.string, &conf->rtr_id)) {
1406 yyerror("error parsing router-id");
1407 free(yyvsp[0].v.string);
1408 YYERRORgoto yyerrlab;
1409 }
1410 free(yyvsp[0].v.string);
1411 }
1412break;
1413case 17:
1414#line 221 "/usr/src/usr.sbin/ospf6d/parse.y"
1415{
1416 if (yyvsp[0].v.number <= RTP_NONE0 || yyvsp[0].v.number > RTP_MAX63) {
1417 yyerror("invalid fib-priority");
1418 YYERRORgoto yyerrlab;
1419 }
1420 conf->fib_priority = yyvsp[0].v.number;
1421 }
1422break;
1423case 18:
1424#line 228 "/usr/src/usr.sbin/ospf6d/parse.y"
1425{
1426 if (yyvsp[0].v.number == 0)
1427 conf->flags |= OSPFD_FLAG_NO_FIB_UPDATE0x0001;
1428 else
1429 conf->flags &= ~OSPFD_FLAG_NO_FIB_UPDATE0x0001;
1430 }
1431break;
1432case 19:
1433#line 234 "/usr/src/usr.sbin/ospf6d/parse.y"
1434{
1435 SIMPLEQ_INSERT_TAIL(&conf->redist_list, yyvsp[0].v.redist, entry)do { (yyvsp[0].v.redist)->entry.sqe_next = ((void*)0); *(&
conf->redist_list)->sqh_last = (yyvsp[0].v.redist); (&
conf->redist_list)->sqh_last = &(yyvsp[0].v.redist)
->entry.sqe_next; } while (0);
1436 conf->redistribute = 1;
1437 }
1438break;
1439case 20:
1440#line 238 "/usr/src/usr.sbin/ospf6d/parse.y"
1441{
1442 if (yyvsp[0].v.number < 0 || yyvsp[0].v.number > UINT_MAX(2147483647 *2U +1U)) {
1443 yyerror("invalid external route tag");
1444 free(yyvsp[-2].v.string);
1445 YYERRORgoto yyerrlab;
1446 }
1447 rtlabel_tag(rtlabel_name2id(yyvsp[-2].v.string), yyvsp[0].v.number);
1448 free(yyvsp[-2].v.string);
1449 }
1450break;
1451case 21:
1452#line 247 "/usr/src/usr.sbin/ospf6d/parse.y"
1453{
1454 if (yyvsp[0].v.number < 0 || yyvsp[0].v.number > RT_TABLEID_MAX255) {
1455 yyerror("invalid rdomain");
1456 YYERRORgoto yyerrlab;
1457 }
1458 conf->rdomain = yyvsp[0].v.number;
1459 }
1460break;
1461case 22:
1462#line 254 "/usr/src/usr.sbin/ospf6d/parse.y"
1463{
1464 if (yyvsp[0].v.number < MIN_SPF_DELAY1 || yyvsp[0].v.number > MAX_SPF_DELAY10) {
1465 yyerror("spf-delay out of range "
1466 "(%d-%d)", MIN_SPF_DELAY1,
1467 MAX_SPF_DELAY10);
1468 YYERRORgoto yyerrlab;
1469 }
1470 conf->spf_delay = yyvsp[0].v.number;
1471 }
1472break;
1473case 23:
1474#line 263 "/usr/src/usr.sbin/ospf6d/parse.y"
1475{
1476 if (yyvsp[0].v.number < MIN_SPF_HOLDTIME1 || yyvsp[0].v.number > MAX_SPF_HOLDTIME5) {
1477 yyerror("spf-holdtime out of range "
1478 "(%d-%d)", MIN_SPF_HOLDTIME1,
1479 MAX_SPF_HOLDTIME5);
1480 YYERRORgoto yyerrlab;
1481 }
1482 conf->spf_hold_time = yyvsp[0].v.number;
1483 }
1484break;
1485case 24:
1486#line 272 "/usr/src/usr.sbin/ospf6d/parse.y"
1487{
1488 if (yyvsp[0].v.number)
1489 conf->flags |= OSPFD_FLAG_STUB_ROUTER0x0002;
1490 else
1491 /* allow to force non stub mode */
1492 conf->flags &= ~OSPFD_FLAG_STUB_ROUTER0x0002;
1493 }
1494break;
1495case 26:
1496#line 282 "/usr/src/usr.sbin/ospf6d/parse.y"
1497{
1498 struct redistribute *r;
1499
1500 if ((r = calloc(1, sizeof(*r))) == NULL((void*)0))
1501 fatal(NULL((void*)0));
1502 if (!strcmp(yyvsp[-2].v.string, "default"))
1503 r->type = REDIST_DEFAULT0x20;
1504 else if (!strcmp(yyvsp[-2].v.string, "static"))
1505 r->type = REDIST_STATIC0x02;
1506 else if (!strcmp(yyvsp[-2].v.string, "connected"))
1507 r->type = REDIST_CONNECTED0x01;
1508 else if (prefix(yyvsp[-2].v.string, &r->addr, &r->prefixlen)) {
1509 r->type = REDIST_ADDR0x08;
1510 conf->redist_label_or_prefix = !yyvsp[-4].v.number;
1511 }
1512 else {
1513 yyerror("unknown redistribute type");
1514 free(yyvsp[-2].v.string);
1515 free(r);
1516 YYERRORgoto yyerrlab;
1517 }
1518
1519 if (yyvsp[-4].v.number)
1520 r->type |= REDIST_NO0x10;
1521 r->metric = yyvsp[-1].v.number;
1522 if (yyvsp[0].v.string)
1523 strlcpy(r->dependon, yyvsp[0].v.string, sizeof(r->dependon));
1524 else
1525 r->dependon[0] = '\0';
1526 free(yyvsp[-2].v.string);
1527 free(yyvsp[0].v.string);
1528 yyval.v.redist = r;
1529 }
1530break;
1531case 27:
1532#line 315 "/usr/src/usr.sbin/ospf6d/parse.y"
1533{
1534 struct redistribute *r;
1535
1536 if ((r = calloc(1, sizeof(*r))) == NULL((void*)0))
1537 fatal(NULL((void*)0));
1538 r->type = REDIST_LABEL0x04;
1539 r->label = rtlabel_name2id(yyvsp[-2].v.string);
1540 if (yyvsp[-5].v.number)
1541 r->type |= REDIST_NO0x10;
1542 else
1543 conf->redist_label_or_prefix = 1;
1544 r->metric = yyvsp[-1].v.number;
1545 if (yyvsp[0].v.string)
1546 strlcpy(r->dependon, yyvsp[0].v.string, sizeof(r->dependon));
1547 else
1548 r->dependon[0] = '\0';
1549 free(yyvsp[-2].v.string);
1550 free(yyvsp[0].v.string);
1551 yyval.v.redist = r;
1552 }
1553break;
1554case 28:
1555#line 337 "/usr/src/usr.sbin/ospf6d/parse.y"
1556{ yyval.v.number = DEFAULT_REDIST_METRIC100; }
1557break;
1558case 29:
1559#line 338 "/usr/src/usr.sbin/ospf6d/parse.y"
1560{
1561 yyval.v.number = yyvsp[0].v.number;
1562 if ((yyval.v.number & LSA_METRIC_MASK0x00ffffff) == 0)
1563 yyval.v.number |= DEFAULT_REDIST_METRIC100;
1564 }
1565break;
1566case 30:
1567#line 343 "/usr/src/usr.sbin/ospf6d/parse.y"
1568{
1569 yyval.v.number = yyvsp[-2].v.number;
1570 if ((yyval.v.number & LSA_METRIC_MASK0x00ffffff) == 0)
1571 yyval.v.number |= DEFAULT_REDIST_METRIC100;
1572 }
1573break;
1574case 31:
1575#line 350 "/usr/src/usr.sbin/ospf6d/parse.y"
1576{
1577 if (yyvsp[-2].v.number & LSA_ASEXT_E_FLAG0x04000000 && yyvsp[0].v.number & LSA_ASEXT_E_FLAG0x04000000) {
1578 yyerror("redistribute type already defined");
1579 YYERRORgoto yyerrlab;
1580 }
1581 if (yyvsp[-2].v.number & LSA_METRIC_MASK0x00ffffff && yyvsp[0].v.number & LSA_METRIC_MASK0x00ffffff) {
1582 yyerror("redistribute metric already defined");
1583 YYERRORgoto yyerrlab;
1584 }
1585 yyval.v.number = yyvsp[-2].v.number | yyvsp[0].v.number;
1586 }
1587break;
1588case 32:
1589#line 361 "/usr/src/usr.sbin/ospf6d/parse.y"
1590{ yyval.v.number = yyvsp[0].v.number; }
1591break;
1592case 33:
1593#line 364 "/usr/src/usr.sbin/ospf6d/parse.y"
1594{
1595 if (yyvsp[0].v.number == 0 || yyvsp[0].v.number > MAX_METRIC65535) {
1596 yyerror("invalid redistribute metric");
1597 YYERRORgoto yyerrlab;
1598 }
1599 yyval.v.number = yyvsp[0].v.number;
1600 }
1601break;
1602case 34:
1603#line 371 "/usr/src/usr.sbin/ospf6d/parse.y"
1604{
1605 switch (yyvsp[0].v.number) {
1606 case 1:
1607 yyval.v.number = 0;
1608 break;
1609 case 2:
1610 yyval.v.number = LSA_ASEXT_E_FLAG0x04000000;
1611 break;
1612 default:
1613 yyerror("only external type 1 and 2 allowed");
1614 YYERRORgoto yyerrlab;
1615 }
1616 }
1617break;
1618case 35:
1619#line 386 "/usr/src/usr.sbin/ospf6d/parse.y"
1620{ yyval.v.string = NULL((void*)0); }
1621break;
1622case 36:
1623#line 387 "/usr/src/usr.sbin/ospf6d/parse.y"
1624{
1625 if (strlen(yyvsp[0].v.string) >= IFNAMSIZ16) {
1626 yyerror("interface name %s too long", yyvsp[0].v.string);
1627 free(yyvsp[0].v.string);
1628 YYERRORgoto yyerrlab;
1629 }
1630 if ((if_findname(yyvsp[0].v.string)) == NULL((void*)0)) {
1631 yyerror("unknown interface %s", yyvsp[0].v.string);
1632 free(yyvsp[0].v.string);
1633 YYERRORgoto yyerrlab;
1634 }
1635 yyval.v.string = yyvsp[0].v.string;
1636 }
1637break;
1638case 37:
1639#line 402 "/usr/src/usr.sbin/ospf6d/parse.y"
1640{
1641 if (yyvsp[0].v.number < MIN_METRIC1 || yyvsp[0].v.number > MAX_METRIC65535) {
1642 yyerror("metric out of range (%d-%d)",
1643 MIN_METRIC1, MAX_METRIC65535);
1644 YYERRORgoto yyerrlab;
1645 }
1646 defs->metric = yyvsp[0].v.number;
1647 }
1648break;
1649case 38:
1650#line 410 "/usr/src/usr.sbin/ospf6d/parse.y"
1651{
1652 if (yyvsp[0].v.number < MIN_PRIORITY0 || yyvsp[0].v.number > MAX_PRIORITY255) {
1653 yyerror("router-priority out of range (%d-%d)",
1654 MIN_PRIORITY0, MAX_PRIORITY255);
1655 YYERRORgoto yyerrlab;
1656 }
1657 defs->priority = yyvsp[0].v.number;
1658 }
1659break;
1660case 39:
1661#line 418 "/usr/src/usr.sbin/ospf6d/parse.y"
1662{
1663 if (yyvsp[0].v.number < MIN_RTR_DEAD_TIME2 || yyvsp[0].v.number > MAX_RTR_DEAD_TIME65535) {
1664 yyerror("router-dead-time out of range (%d-%d)",
1665 MIN_RTR_DEAD_TIME2, MAX_RTR_DEAD_TIME65535);
1666 YYERRORgoto yyerrlab;
1667 }
1668 defs->dead_interval = yyvsp[0].v.number;
1669 }
1670break;
1671case 40:
1672#line 426 "/usr/src/usr.sbin/ospf6d/parse.y"
1673{
1674 if (yyvsp[0].v.number < MIN_TRANSMIT_DELAY1 ||
1675 yyvsp[0].v.number > MAX_TRANSMIT_DELAY3600) {
1676 yyerror("transmit-delay out of range (%d-%d)",
1677 MIN_TRANSMIT_DELAY1, MAX_TRANSMIT_DELAY3600);
1678 YYERRORgoto yyerrlab;
1679 }
1680 defs->transmit_delay = yyvsp[0].v.number;
1681 }
1682break;
1683case 41:
1684#line 435 "/usr/src/usr.sbin/ospf6d/parse.y"
1685{
1686 if (yyvsp[0].v.number < MIN_HELLO_INTERVAL1 ||
1687 yyvsp[0].v.number > MAX_HELLO_INTERVAL65535) {
1688 yyerror("hello-interval out of range (%d-%d)",
1689 MIN_HELLO_INTERVAL1, MAX_HELLO_INTERVAL65535);
1690 YYERRORgoto yyerrlab;
1691 }
1692 defs->hello_interval = yyvsp[0].v.number;
1693 }
1694break;
1695case 42:
1696#line 444 "/usr/src/usr.sbin/ospf6d/parse.y"
1697{
1698 if (yyvsp[0].v.number < MIN_RXMT_INTERVAL5 || yyvsp[0].v.number > MAX_RXMT_INTERVAL3600) {
1699 yyerror("retransmit-interval out of range "
1700 "(%d-%d)", MIN_RXMT_INTERVAL5,
1701 MAX_RXMT_INTERVAL3600);
1702 YYERRORgoto yyerrlab;
1703 }
1704 defs->rxmt_interval = yyvsp[0].v.number;
1705 }
1706break;
1707case 43:
1708#line 453 "/usr/src/usr.sbin/ospf6d/parse.y"
1709{
1710 defs->p2p = 1;
1711 }
1712break;
1713case 49:
1714#line 469 "/usr/src/usr.sbin/ospf6d/parse.y"
1715{
1716 area = conf_get_area(yyvsp[0].v.id);
1717
1718 memcpy(&areadefs, defs, sizeof(areadefs));
1719 defs = &areadefs;
1720 }
1721break;
1722case 50:
1723#line 474 "/usr/src/usr.sbin/ospf6d/parse.y"
1724{
1725 area = NULL((void*)0);
1726 defs = &globaldefs;
1727 }
1728break;
1729case 51:
1730#line 480 "/usr/src/usr.sbin/ospf6d/parse.y"
1731{ yyval.v.number = yyvsp[0].v.number; }
1732break;
1733case 52:
1734#line 481 "/usr/src/usr.sbin/ospf6d/parse.y"
1735{ yyval.v.number = 1; }
1736break;
1737case 53:
1738#line 484 "/usr/src/usr.sbin/ospf6d/parse.y"
1739{
1740 if (yyvsp[0].v.number < 0 || yyvsp[0].v.number > 0xffffffff) {
1741 yyerror("invalid area id");
1742 YYERRORgoto yyerrlab;
1743 }
1744 yyval.v.id.s_addr = htonl(yyvsp[0].v.number)(__uint32_t)(__builtin_constant_p(yyvsp[0].v.number) ? (__uint32_t
)(((__uint32_t)(yyvsp[0].v.number) & 0xff) << 24 | (
(__uint32_t)(yyvsp[0].v.number) & 0xff00) << 8 | ((
__uint32_t)(yyvsp[0].v.number) & 0xff0000) >> 8 | (
(__uint32_t)(yyvsp[0].v.number) & 0xff000000) >> 24
) : __swap32md(yyvsp[0].v.number));
1745 }
1746break;
1747case 54:
1748#line 491 "/usr/src/usr.sbin/ospf6d/parse.y"
1749{
1750 if (inet_aton(yyvsp[0].v.string, &yyval.v.id) == 0) {
1751 yyerror("error parsing area");
1752 free(yyvsp[0].v.string);
1753 YYERRORgoto yyerrlab;
1754 }
1755 free(yyvsp[0].v.string);
1756 }
1757break;
1758case 58:
1759#line 506 "/usr/src/usr.sbin/ospf6d/parse.y"
1760{
1761 if (yyvsp[0].v.number < 1 || yyvsp[0].v.number > 255) {
1762 yyerror("demote count out of range (1-255)");
1763 free(yyvsp[-1].v.string);
1764 YYERRORgoto yyerrlab;
1765 }
1766 area->demote_level = yyvsp[0].v.number;
1767 if (strlcpy(area->demote_group, yyvsp[-1].v.string,
1768 sizeof(area->demote_group)) >=
1769 sizeof(area->demote_group)) {
1770 yyerror("demote group name \"%s\" too long",
1771 yyvsp[-1].v.string);
1772 free(yyvsp[-1].v.string);
1773 YYERRORgoto yyerrlab;
1774 }
1775 free(yyvsp[-1].v.string);
1776 if (carp_demote_init(area->demote_group,
1777 conf->opts & OSPFD_OPT_FORCE_DEMOTE0x00000010) == -1) {
1778 yyerror("error initializing group \"%s\"",
1779 area->demote_group);
1780 YYERRORgoto yyerrlab;
1781 }
1782 }
1783break;
1784case 60:
1785#line 532 "/usr/src/usr.sbin/ospf6d/parse.y"
1786{
1787 if ((iface = if_findname(yyvsp[0].v.string)) == NULL((void*)0)) {
1788 yyerror("unknown interface %s", yyvsp[0].v.string);
1789 free(yyvsp[0].v.string);
1790 YYERRORgoto yyerrlab;
1791 }
1792 if (IN6_IS_ADDR_UNSPECIFIED(&iface->addr)((*(const u_int32_t *)(const void *)(&(&iface->addr
)->__u6_addr.__u6_addr8[0]) == 0) && (*(const u_int32_t
*)(const void *)(&(&iface->addr)->__u6_addr.__u6_addr8
[4]) == 0) && (*(const u_int32_t *)(const void *)(&
(&iface->addr)->__u6_addr.__u6_addr8[8]) == 0) &&
(*(const u_int32_t *)(const void *)(&(&iface->addr
)->__u6_addr.__u6_addr8[12]) == 0))) {
1793 yyerror("unnumbered interface %s", yyvsp[0].v.string);
1794 free(yyvsp[0].v.string);
1795 YYERRORgoto yyerrlab;
1796 }
1797 free(yyvsp[0].v.string);
1798 iface->area = area;
1799 LIST_INSERT_HEAD(&area->iface_list, iface, entry)do { if (((iface)->entry.le_next = (&area->iface_list
)->lh_first) != ((void*)0)) (&area->iface_list)->
lh_first->entry.le_prev = &(iface)->entry.le_next; (
&area->iface_list)->lh_first = (iface); (iface)->
entry.le_prev = &(&area->iface_list)->lh_first;
} while (0);
1800
1801 memcpy(&ifacedefs, defs, sizeof(ifacedefs));
1802 defs = &ifacedefs;
1803 }
1804break;
1805case 61:
1806#line 549 "/usr/src/usr.sbin/ospf6d/parse.y"
1807{
1808 iface->dead_interval = defs->dead_interval;
1809 iface->transmit_delay = defs->transmit_delay;
1810 iface->hello_interval = defs->hello_interval;
1811 iface->rxmt_interval = defs->rxmt_interval;
1812 iface->metric = defs->metric;
1813 iface->priority = defs->priority;
1814 iface->cflags |= F_IFACE_CONFIGURED0x02;
1815 if (defs->p2p == 1)
1816 iface->type = IF_TYPE_POINTOPOINT;
1817 iface = NULL((void*)0);
1818 /* interface is always part of an area */
1819 defs = &areadefs;
1820 }
1821break;
1822case 67:
1823#line 574 "/usr/src/usr.sbin/ospf6d/parse.y"
1824{ iface->cflags |= F_IFACE_PASSIVE0x01; }
1825break;
1826case 68:
1827#line 575 "/usr/src/usr.sbin/ospf6d/parse.y"
1828{
1829 if (strlcpy(iface->demote_group, yyvsp[0].v.string,
1830 sizeof(iface->demote_group)) >=
1831 sizeof(iface->demote_group)) {
1832 yyerror("demote group name \"%s\" too long",
1833 yyvsp[0].v.string);
1834 free(yyvsp[0].v.string);
1835 YYERRORgoto yyerrlab;
1836 }
1837 free(yyvsp[0].v.string);
1838 if (carp_demote_init(iface->demote_group,
1839 conf->opts & OSPFD_OPT_FORCE_DEMOTE0x00000010) == -1) {
1840 yyerror("error initializing group \"%s\"",
1841 iface->demote_group);
1842 YYERRORgoto yyerrlab;
1843 }
1844 }
1845break;
1846case 69:
1847#line 592 "/usr/src/usr.sbin/ospf6d/parse.y"
1848{
1849 struct iface *depend_if = NULL((void*)0);
1850
1851 if (yyvsp[0].v.string) {
1852 strlcpy(iface->dependon, yyvsp[0].v.string,
1853 sizeof(iface->dependon));
1854 depend_if = if_findname(yyvsp[0].v.string);
1855 iface->depend_ok = ifstate_is_up(depend_if);
1856 } else {
1857 iface->dependon[0] = '\0';
1858 iface->depend_ok = 1;
1859 }
1860 }
1861break;
1862#line 1855 "parse.c"
1863 }
1864 yyssp -= yym;
1865 yystate = *yyssp;
1866 yyvsp -= yym;
1867 yym = yylhs[yyn];
1868 if (yystate == 0 && yym == 0)
1869 {
1870#if YYDEBUG0
1871 if (yydebug)
1872 printf("%sdebug: after reduction, shifting from state 0 to\
1873 state %d\n", YYPREFIX"yy", YYFINAL1);
1874#endif
1875 yystate = YYFINAL1;
1876 *++yyssp = YYFINAL1;
1877 *++yyvsp = yyval;
1878 if (yychar < 0)
1879 {
1880 if ((yychar = yylex()) < 0) yychar = 0;
1881#if YYDEBUG0
1882 if (yydebug)
1883 {
1884 yys = 0;
1885 if (yychar <= YYMAXTOKEN288) yys = yyname[yychar];
1886 if (!yys) yys = "illegal-symbol";
1887 printf("%sdebug: state %d, reading %d (%s)\n",
1888 YYPREFIX"yy", YYFINAL1, yychar, yys);
1889 }
1890#endif
1891 }
1892 if (yychar == 0) goto yyaccept;
1893 goto yyloop;
1894 }
1895 if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
1896 yyn <= YYTABLESIZE322 && yycheck[yyn] == yystate)
1897 yystate = yytable[yyn];
1898 else
1899 yystate = yydgoto[yym];
1900#if YYDEBUG0
1901 if (yydebug)
1902 printf("%sdebug: after reduction, shifting from state %d \
1903to state %d\n", YYPREFIX"yy", *yyssp, yystate);
1904#endif
1905 if (yyssp >= yysslim && yygrowstack())
1906 {
1907 goto yyoverflow;
1908 }
1909 *++yyssp = yystate;
1910 *++yyvsp = yyval;
1911 goto yyloop;
1912yyoverflow:
1913 yyerror("yacc stack overflow");
1914yyabort:
1915 if (yyss)
1916 free(yyss);
1917 if (yyvs)
1918 free(yyvs);
1919 yyss = yyssp = NULL((void*)0);
1920 yyvs = yyvsp = NULL((void*)0);
1921 yystacksize = 0;
1922 return (1);
1923yyaccept:
1924 if (yyss)
1925 free(yyss);
1926 if (yyvs)
1927 free(yyvs);
1928 yyss = yyssp = NULL((void*)0);
1929 yyvs = yyvsp = NULL((void*)0);
1930 yystacksize = 0;
1931 return (0);
1932}