2 a596b957 2022-07-14 tracey * Copyright (c) 2016-2019, 2020-2021 Tracey Emery <tracey@traceyemery.net>
3 a596b957 2022-07-14 tracey * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
4 a596b957 2022-07-14 tracey * Copyright (c) 2004 Ryan McBride <mcbride@openbsd.org>
5 a596b957 2022-07-14 tracey * Copyright (c) 2002, 2003, 2004 Henning Brauer <henning@openbsd.org>
6 a596b957 2022-07-14 tracey * Copyright (c) 2001 Markus Friedl. All rights reserved.
7 a596b957 2022-07-14 tracey * Copyright (c) 2001 Daniel Hartmeier. All rights reserved.
8 a596b957 2022-07-14 tracey * Copyright (c) 2001 Theo de Raadt. All rights reserved.
10 a596b957 2022-07-14 tracey * Permission to use, copy, modify, and distribute this software for any
11 a596b957 2022-07-14 tracey * purpose with or without fee is hereby granted, provided that the above
12 a596b957 2022-07-14 tracey * copyright notice and this permission notice appear in all copies.
14 a596b957 2022-07-14 tracey * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
15 a596b957 2022-07-14 tracey * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
16 a596b957 2022-07-14 tracey * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
17 a596b957 2022-07-14 tracey * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
18 a596b957 2022-07-14 tracey * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
19 a596b957 2022-07-14 tracey * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
20 a596b957 2022-07-14 tracey * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 a596b957 2022-07-14 tracey #include <sys/ioctl.h>
25 a596b957 2022-07-14 tracey #include <sys/types.h>
26 a596b957 2022-07-14 tracey #include <sys/queue.h>
27 a596b957 2022-07-14 tracey #include <sys/socket.h>
28 a596b957 2022-07-14 tracey #include <sys/stat.h>
30 a596b957 2022-07-14 tracey #include <net/if.h>
31 a596b957 2022-07-14 tracey #include <netinet/in.h>
33 a596b957 2022-07-14 tracey #include <arpa/inet.h>
35 a596b957 2022-07-14 tracey #include <ctype.h>
36 a596b957 2022-07-14 tracey #include <err.h>
37 a596b957 2022-07-14 tracey #include <errno.h>
38 a596b957 2022-07-14 tracey #include <event.h>
39 a596b957 2022-07-14 tracey #include <ifaddrs.h>
40 a596b957 2022-07-14 tracey #include <imsg.h>
41 a596b957 2022-07-14 tracey #include <limits.h>
42 a596b957 2022-07-14 tracey #include <netdb.h>
43 a596b957 2022-07-14 tracey #include <stdarg.h>
44 a596b957 2022-07-14 tracey #include <stdlib.h>
45 a596b957 2022-07-14 tracey #include <stdio.h>
46 a596b957 2022-07-14 tracey #include <string.h>
47 a596b957 2022-07-14 tracey #include <syslog.h>
48 a596b957 2022-07-14 tracey #include <unistd.h>
50 a596b957 2022-07-14 tracey #include "proc.h"
51 a596b957 2022-07-14 tracey #include "gotwebd.h"
52 86b4b772 2022-07-29 stsp #include "got_sockaddr.h"
54 a596b957 2022-07-14 tracey TAILQ_HEAD(files, file) files = TAILQ_HEAD_INITIALIZER(files);
55 a596b957 2022-07-14 tracey static struct file {
56 a596b957 2022-07-14 tracey TAILQ_ENTRY(file) entry;
57 a596b957 2022-07-14 tracey FILE *stream;
58 a596b957 2022-07-14 tracey char *name;
59 a596b957 2022-07-14 tracey int lineno;
60 a596b957 2022-07-14 tracey int errors;
62 a596b957 2022-07-14 tracey struct file *newfile(const char *, int);
63 a596b957 2022-07-14 tracey static void closefile(struct file *);
64 a596b957 2022-07-14 tracey int check_file_secrecy(int, const char *);
65 a596b957 2022-07-14 tracey int yyparse(void);
66 a596b957 2022-07-14 tracey int yylex(void);
67 a596b957 2022-07-14 tracey int yyerror(const char *, ...)
68 a596b957 2022-07-14 tracey __attribute__((__format__ (printf, 1, 2)))
69 a596b957 2022-07-14 tracey __attribute__((__nonnull__ (1)));
70 a596b957 2022-07-14 tracey int kw_cmp(const void *, const void *);
71 a596b957 2022-07-14 tracey int lookup(char *);
72 a596b957 2022-07-14 tracey int lgetc(int);
73 a596b957 2022-07-14 tracey int lungetc(int);
74 a596b957 2022-07-14 tracey int findeol(void);
76 a596b957 2022-07-14 tracey TAILQ_HEAD(symhead, sym) symhead = TAILQ_HEAD_INITIALIZER(symhead);
77 a596b957 2022-07-14 tracey struct sym {
78 a596b957 2022-07-14 tracey TAILQ_ENTRY(sym) entry;
80 a596b957 2022-07-14 tracey int persist;
81 a596b957 2022-07-14 tracey char *nam;
82 a596b957 2022-07-14 tracey char *val;
85 a596b957 2022-07-14 tracey int symset(const char *, const char *, int);
86 a596b957 2022-07-14 tracey char *symget(const char *);
88 a596b957 2022-07-14 tracey static int errors;
90 a596b957 2022-07-14 tracey static struct gotwebd *gotwebd;
91 a596b957 2022-07-14 tracey static struct server *new_srv;
92 a596b957 2022-07-14 tracey static struct server *conf_new_server(const char *);
93 a596b957 2022-07-14 tracey int getservice(const char *);
96 67d8de2a 2022-08-29 stsp int get_addrs(const char *, struct server *, in_port_t);
97 67d8de2a 2022-08-29 stsp int addr_dup_check(struct addresslist *, struct address *,
98 67d8de2a 2022-08-29 stsp const char *, const char *);
99 67d8de2a 2022-08-29 stsp int add_addr(struct server *, struct address *);
100 a596b957 2022-07-14 tracey struct address *host_v4(const char *);
101 a596b957 2022-07-14 tracey struct address *host_v6(const char *);
102 67d8de2a 2022-08-29 stsp int host_dns(const char *, struct server *,
103 a596b957 2022-07-14 tracey int, in_port_t, const char *, int);
104 67d8de2a 2022-08-29 stsp int host_if(const char *, struct server *,
105 a596b957 2022-07-14 tracey int, in_port_t, const char *, int);
106 67d8de2a 2022-08-29 stsp int host(const char *, struct server *,
107 a596b957 2022-07-14 tracey int, in_port_t, const char *, int);
108 a596b957 2022-07-14 tracey int is_if_in_group(const char *, const char *);
110 a596b957 2022-07-14 tracey typedef struct {
112 a596b957 2022-07-14 tracey long long number;
113 a596b957 2022-07-14 tracey char *string;
114 a596b957 2022-07-14 tracey in_port_t port;
116 a596b957 2022-07-14 tracey int lineno;
117 a596b957 2022-07-14 tracey } YYSTYPE;
121 d8473d93 2022-08-11 stsp %token LISTEN WWW_PATH MAX_REPOS SITE_NAME SITE_OWNER SITE_LINK LOGO
122 a596b957 2022-07-14 tracey %token LOGO_URL SHOW_REPO_OWNER SHOW_REPO_AGE SHOW_REPO_DESCRIPTION
123 a596b957 2022-07-14 tracey %token MAX_REPOS_DISPLAY REPOS_PATH MAX_COMMITS_DISPLAY ON ERROR
124 b1328b3e 2022-08-30 op %token SHOW_SITE_OWNER SHOW_REPO_CLONEURL PORT PREFORK
125 a596b957 2022-07-14 tracey %token UNIX_SOCKET UNIX_SOCKET_NAME SERVER CHROOT CUSTOM_CSS
127 a596b957 2022-07-14 tracey %token <v.string> STRING
128 a596b957 2022-07-14 tracey %type <v.port> fcgiport
129 a596b957 2022-07-14 tracey %token <v.number> NUMBER
130 a596b957 2022-07-14 tracey %type <v.number> boolean
134 a596b957 2022-07-14 tracey grammar :
135 a596b957 2022-07-14 tracey | grammar '\n'
136 a596b957 2022-07-14 tracey | grammar main '\n'
137 a596b957 2022-07-14 tracey | grammar server '\n'
140 a596b957 2022-07-14 tracey boolean : STRING {
141 a596b957 2022-07-14 tracey if (strcasecmp($1, "1") == 0 ||
142 a596b957 2022-07-14 tracey strcasecmp($1, "yes") == 0 ||
143 a596b957 2022-07-14 tracey strcasecmp($1, "on") == 0)
145 a596b957 2022-07-14 tracey else if (strcasecmp($1, "0") == 0 ||
146 a596b957 2022-07-14 tracey strcasecmp($1, "off") == 0 ||
147 a596b957 2022-07-14 tracey strcasecmp($1, "no") == 0)
150 a596b957 2022-07-14 tracey yyerror("invalid boolean value '%s'", $1);
151 a596b957 2022-07-14 tracey free($1);
154 a596b957 2022-07-14 tracey free($1);
156 a596b957 2022-07-14 tracey | ON { $$ = 1; }
157 a596b957 2022-07-14 tracey | NUMBER { $$ = $1; }
160 17132eaa 2022-08-29 stsp fcgiport : PORT NUMBER {
161 17132eaa 2022-08-29 stsp if ($2 <= 0 || $2 > (int)USHRT_MAX) {
162 17132eaa 2022-08-29 stsp yyerror("invalid port: %lld", $2);
167 17132eaa 2022-08-29 stsp | PORT STRING {
170 17132eaa 2022-08-29 stsp if ((val = getservice($2)) == -1) {
171 17132eaa 2022-08-29 stsp yyerror("invalid port: %s", $2);
177 a596b957 2022-07-14 tracey $$ = val;
181 a596b957 2022-07-14 tracey main : PREFORK NUMBER {
182 a596b957 2022-07-14 tracey gotwebd->prefork_gotwebd = $2;
184 a596b957 2022-07-14 tracey | CHROOT STRING {
185 a596b957 2022-07-14 tracey n = strlcpy(gotwebd->httpd_chroot, $2,
186 a596b957 2022-07-14 tracey sizeof(gotwebd->httpd_chroot));
187 a596b957 2022-07-14 tracey if (n >= sizeof(gotwebd->httpd_chroot)) {
188 a596b957 2022-07-14 tracey yyerror("%s: httpd_chroot truncated", __func__);
189 a596b957 2022-07-14 tracey free($2);
192 a596b957 2022-07-14 tracey free($2);
194 a596b957 2022-07-14 tracey | UNIX_SOCKET boolean {
195 a596b957 2022-07-14 tracey gotwebd->unix_socket = $2;
197 a596b957 2022-07-14 tracey | UNIX_SOCKET_NAME STRING {
198 a596b957 2022-07-14 tracey n = snprintf(gotwebd->unix_socket_name,
199 a596b957 2022-07-14 tracey sizeof(gotwebd->unix_socket_name), "%s%s",
200 a596b957 2022-07-14 tracey strlen(gotwebd->httpd_chroot) ?
201 a596b957 2022-07-14 tracey gotwebd->httpd_chroot : D_HTTPD_CHROOT, $2);
203 438d0cc3 2022-08-16 op (size_t)n >= sizeof(gotwebd->unix_socket_name)) {
204 a596b957 2022-07-14 tracey yyerror("%s: unix_socket_name truncated",
205 a596b957 2022-07-14 tracey __func__);
206 a596b957 2022-07-14 tracey free($2);
209 a596b957 2022-07-14 tracey free($2);
213 a596b957 2022-07-14 tracey server : SERVER STRING {
214 a596b957 2022-07-14 tracey struct server *srv;
216 2ad48e9a 2022-08-16 stsp TAILQ_FOREACH(srv, &gotwebd->servers, entry) {
217 a596b957 2022-07-14 tracey if (strcmp(srv->name, $2) == 0) {
218 a596b957 2022-07-14 tracey yyerror("server name exists '%s'", $2);
219 a596b957 2022-07-14 tracey free($2);
224 a596b957 2022-07-14 tracey new_srv = conf_new_server($2);
225 a596b957 2022-07-14 tracey log_debug("adding server %s", $2);
226 a596b957 2022-07-14 tracey free($2);
228 a596b957 2022-07-14 tracey | SERVER STRING {
229 a596b957 2022-07-14 tracey struct server *srv;
231 2ad48e9a 2022-08-16 stsp TAILQ_FOREACH(srv, &gotwebd->servers, entry) {
232 a596b957 2022-07-14 tracey if (strcmp(srv->name, $2) == 0) {
233 a596b957 2022-07-14 tracey yyerror("server name exists '%s'", $2);
234 a596b957 2022-07-14 tracey free($2);
239 a596b957 2022-07-14 tracey new_srv = conf_new_server($2);
240 a596b957 2022-07-14 tracey log_debug("adding server %s", $2);
241 a596b957 2022-07-14 tracey free($2);
242 a596b957 2022-07-14 tracey } '{' optnl serveropts2 '}' {
246 a596b957 2022-07-14 tracey serveropts1 : REPOS_PATH STRING {
247 a596b957 2022-07-14 tracey n = strlcpy(new_srv->repos_path, $2,
248 a596b957 2022-07-14 tracey sizeof(new_srv->repos_path));
249 a596b957 2022-07-14 tracey if (n >= sizeof(new_srv->repos_path)) {
250 a596b957 2022-07-14 tracey yyerror("%s: repos_path truncated", __func__);
251 a596b957 2022-07-14 tracey free($2);
254 a596b957 2022-07-14 tracey free($2);
256 a596b957 2022-07-14 tracey | SITE_NAME STRING {
257 a596b957 2022-07-14 tracey n = strlcpy(new_srv->site_name, $2,
258 a596b957 2022-07-14 tracey sizeof(new_srv->site_name));
259 a596b957 2022-07-14 tracey if (n >= sizeof(new_srv->site_name)) {
260 a596b957 2022-07-14 tracey yyerror("%s: site_name truncated", __func__);
261 a596b957 2022-07-14 tracey free($2);
264 a596b957 2022-07-14 tracey free($2);
266 a596b957 2022-07-14 tracey | SITE_OWNER STRING {
267 a596b957 2022-07-14 tracey n = strlcpy(new_srv->site_owner, $2,
268 a596b957 2022-07-14 tracey sizeof(new_srv->site_owner));
269 a596b957 2022-07-14 tracey if (n >= sizeof(new_srv->site_owner)) {
270 a596b957 2022-07-14 tracey yyerror("%s: site_owner truncated", __func__);
271 a596b957 2022-07-14 tracey free($2);
274 a596b957 2022-07-14 tracey free($2);
276 a596b957 2022-07-14 tracey | SITE_LINK STRING {
277 a596b957 2022-07-14 tracey n = strlcpy(new_srv->site_link, $2,
278 a596b957 2022-07-14 tracey sizeof(new_srv->site_link));
279 a596b957 2022-07-14 tracey if (n >= sizeof(new_srv->site_link)) {
280 a596b957 2022-07-14 tracey yyerror("%s: site_link truncated", __func__);
281 a596b957 2022-07-14 tracey free($2);
284 a596b957 2022-07-14 tracey free($2);
286 a596b957 2022-07-14 tracey | LOGO STRING {
287 a596b957 2022-07-14 tracey n = strlcpy(new_srv->logo, $2, sizeof(new_srv->logo));
288 a596b957 2022-07-14 tracey if (n >= sizeof(new_srv->logo)) {
289 a596b957 2022-07-14 tracey yyerror("%s: logo truncated", __func__);
290 a596b957 2022-07-14 tracey free($2);
293 a596b957 2022-07-14 tracey free($2);
295 a596b957 2022-07-14 tracey | LOGO_URL STRING {
296 a596b957 2022-07-14 tracey n = strlcpy(new_srv->logo_url, $2,
297 a596b957 2022-07-14 tracey sizeof(new_srv->logo_url));
298 a596b957 2022-07-14 tracey if (n >= sizeof(new_srv->logo_url)) {
299 a596b957 2022-07-14 tracey yyerror("%s: logo_url truncated", __func__);
300 a596b957 2022-07-14 tracey free($2);
303 a596b957 2022-07-14 tracey free($2);
305 a596b957 2022-07-14 tracey | CUSTOM_CSS STRING {
306 a596b957 2022-07-14 tracey n = strlcpy(new_srv->custom_css, $2,
307 a596b957 2022-07-14 tracey sizeof(new_srv->custom_css));
308 a596b957 2022-07-14 tracey if (n >= sizeof(new_srv->custom_css)) {
309 a596b957 2022-07-14 tracey yyerror("%s: custom_css truncated", __func__);
310 a596b957 2022-07-14 tracey free($2);
313 a596b957 2022-07-14 tracey free($2);
315 17132eaa 2022-08-29 stsp | LISTEN ON STRING fcgiport {
316 67d8de2a 2022-08-29 stsp if (get_addrs($3, new_srv, $4) == -1) {
317 67d8de2a 2022-08-29 stsp yyerror("could not get addrs");
320 6c8aa58f 2022-08-30 stsp new_srv->fcgi_socket = 1;
322 a596b957 2022-07-14 tracey | MAX_REPOS NUMBER {
323 a596b957 2022-07-14 tracey if ($2 > 0)
324 a596b957 2022-07-14 tracey new_srv->max_repos = $2;
326 a596b957 2022-07-14 tracey | SHOW_SITE_OWNER boolean {
327 a596b957 2022-07-14 tracey new_srv->show_site_owner = $2;
329 a596b957 2022-07-14 tracey | SHOW_REPO_OWNER boolean {
330 a596b957 2022-07-14 tracey new_srv->show_repo_owner = $2;
332 a596b957 2022-07-14 tracey | SHOW_REPO_AGE boolean {
333 a596b957 2022-07-14 tracey new_srv->show_repo_age = $2;
335 a596b957 2022-07-14 tracey | SHOW_REPO_DESCRIPTION boolean {
336 a596b957 2022-07-14 tracey new_srv->show_repo_description = $2;
338 a596b957 2022-07-14 tracey | SHOW_REPO_CLONEURL boolean {
339 a596b957 2022-07-14 tracey new_srv->show_repo_cloneurl = $2;
341 a596b957 2022-07-14 tracey | MAX_REPOS_DISPLAY NUMBER {
342 a596b957 2022-07-14 tracey new_srv->max_repos_display = $2;
344 a596b957 2022-07-14 tracey | MAX_COMMITS_DISPLAY NUMBER {
345 a596b957 2022-07-14 tracey if ($2 > 0)
346 a596b957 2022-07-14 tracey new_srv->max_commits_display = $2;
348 a596b957 2022-07-14 tracey | UNIX_SOCKET boolean {
349 a596b957 2022-07-14 tracey new_srv->unix_socket = $2;
351 a596b957 2022-07-14 tracey | UNIX_SOCKET_NAME STRING {
352 a596b957 2022-07-14 tracey n = snprintf(new_srv->unix_socket_name,
353 a596b957 2022-07-14 tracey sizeof(new_srv->unix_socket_name), "%s%s",
354 a596b957 2022-07-14 tracey strlen(gotwebd->httpd_chroot) ?
355 a596b957 2022-07-14 tracey gotwebd->httpd_chroot : D_HTTPD_CHROOT, $2);
357 438d0cc3 2022-08-16 op (size_t)n >= sizeof(new_srv->unix_socket_name)) {
358 a596b957 2022-07-14 tracey yyerror("%s: unix_socket_name truncated",
359 a596b957 2022-07-14 tracey __func__);
360 a596b957 2022-07-14 tracey free($2);
363 a596b957 2022-07-14 tracey free($2);
367 a596b957 2022-07-14 tracey serveropts2 : serveropts2 serveropts1 nl
368 a596b957 2022-07-14 tracey | serveropts1 optnl
371 a596b957 2022-07-14 tracey nl : '\n' optnl
374 a596b957 2022-07-14 tracey optnl : '\n' optnl /* zero or more newlines */
375 a596b957 2022-07-14 tracey | /* empty */
380 a596b957 2022-07-14 tracey struct keywords {
381 a596b957 2022-07-14 tracey const char *k_name;
382 a596b957 2022-07-14 tracey int k_val;
386 a596b957 2022-07-14 tracey yyerror(const char *fmt, ...)
388 a596b957 2022-07-14 tracey va_list ap;
389 a596b957 2022-07-14 tracey char *msg;
391 a596b957 2022-07-14 tracey file->errors++;
392 a596b957 2022-07-14 tracey va_start(ap, fmt);
393 a596b957 2022-07-14 tracey if (vasprintf(&msg, fmt, ap) == -1)
394 a596b957 2022-07-14 tracey fatalx("yyerror vasprintf");
395 a596b957 2022-07-14 tracey va_end(ap);
396 a596b957 2022-07-14 tracey logit(LOG_CRIT, "%s:%d: %s", file->name, yylval.lineno, msg);
397 a596b957 2022-07-14 tracey free(msg);
398 a596b957 2022-07-14 tracey return (0);
402 a596b957 2022-07-14 tracey kw_cmp(const void *k, const void *e)
404 a596b957 2022-07-14 tracey return (strcmp(k, ((const struct keywords *)e)->k_name));
408 a596b957 2022-07-14 tracey lookup(char *s)
410 a596b957 2022-07-14 tracey /* This has to be sorted always. */
411 a596b957 2022-07-14 tracey static const struct keywords keywords[] = {
412 a596b957 2022-07-14 tracey { "chroot", CHROOT },
413 a596b957 2022-07-14 tracey { "custom_css", CUSTOM_CSS },
414 d8473d93 2022-08-11 stsp { "listen", LISTEN },
415 a596b957 2022-07-14 tracey { "logo", LOGO },
416 a596b957 2022-07-14 tracey { "logo_url" , LOGO_URL },
417 a596b957 2022-07-14 tracey { "max_commits_display", MAX_COMMITS_DISPLAY },
418 a596b957 2022-07-14 tracey { "max_repos", MAX_REPOS },
419 a596b957 2022-07-14 tracey { "max_repos_display", MAX_REPOS_DISPLAY },
420 d8473d93 2022-08-11 stsp { "on", ON },
421 a596b957 2022-07-14 tracey { "port", PORT },
422 a596b957 2022-07-14 tracey { "prefork", PREFORK },
423 a596b957 2022-07-14 tracey { "repos_path", REPOS_PATH },
424 a596b957 2022-07-14 tracey { "server", SERVER },
425 a596b957 2022-07-14 tracey { "show_repo_age", SHOW_REPO_AGE },
426 a596b957 2022-07-14 tracey { "show_repo_cloneurl", SHOW_REPO_CLONEURL },
427 a596b957 2022-07-14 tracey { "show_repo_description", SHOW_REPO_DESCRIPTION },
428 a596b957 2022-07-14 tracey { "show_repo_owner", SHOW_REPO_OWNER },
429 a596b957 2022-07-14 tracey { "show_site_owner", SHOW_SITE_OWNER },
430 a596b957 2022-07-14 tracey { "site_link", SITE_LINK },
431 a596b957 2022-07-14 tracey { "site_name", SITE_NAME },
432 a596b957 2022-07-14 tracey { "site_owner", SITE_OWNER },
433 a596b957 2022-07-14 tracey { "unix_socket", UNIX_SOCKET },
434 a596b957 2022-07-14 tracey { "unix_socket_name", UNIX_SOCKET_NAME },
436 a596b957 2022-07-14 tracey const struct keywords *p;
438 a596b957 2022-07-14 tracey p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]),
439 a596b957 2022-07-14 tracey sizeof(keywords[0]), kw_cmp);
442 a596b957 2022-07-14 tracey return (p->k_val);
444 a596b957 2022-07-14 tracey return (STRING);
447 a596b957 2022-07-14 tracey #define MAXPUSHBACK 128
449 a596b957 2022-07-14 tracey unsigned char *parsebuf;
450 a596b957 2022-07-14 tracey int parseindex;
451 a596b957 2022-07-14 tracey unsigned char pushback_buffer[MAXPUSHBACK];
452 a596b957 2022-07-14 tracey int pushback_index = 0;
455 a596b957 2022-07-14 tracey lgetc(int quotec)
457 a596b957 2022-07-14 tracey int c, next;
459 a596b957 2022-07-14 tracey if (parsebuf) {
460 a596b957 2022-07-14 tracey /* Read character from the parsebuffer instead of input. */
461 a596b957 2022-07-14 tracey if (parseindex >= 0) {
462 a596b957 2022-07-14 tracey c = parsebuf[parseindex++];
463 a596b957 2022-07-14 tracey if (c != '\0')
464 a596b957 2022-07-14 tracey return (c);
465 a596b957 2022-07-14 tracey parsebuf = NULL;
467 a596b957 2022-07-14 tracey parseindex++;
470 a596b957 2022-07-14 tracey if (pushback_index)
471 a596b957 2022-07-14 tracey return (pushback_buffer[--pushback_index]);
473 a596b957 2022-07-14 tracey if (quotec) {
474 a596b957 2022-07-14 tracey c = getc(file->stream);
475 a596b957 2022-07-14 tracey if (c == EOF)
476 a596b957 2022-07-14 tracey yyerror("reached end of file while parsing "
477 a596b957 2022-07-14 tracey "quoted string");
478 a596b957 2022-07-14 tracey return (c);
481 a596b957 2022-07-14 tracey c = getc(file->stream);
482 a596b957 2022-07-14 tracey while (c == '\\') {
483 a596b957 2022-07-14 tracey next = getc(file->stream);
484 a596b957 2022-07-14 tracey if (next != '\n') {
485 a596b957 2022-07-14 tracey c = next;
488 a596b957 2022-07-14 tracey yylval.lineno = file->lineno;
489 a596b957 2022-07-14 tracey file->lineno++;
490 a596b957 2022-07-14 tracey c = getc(file->stream);
493 a596b957 2022-07-14 tracey return (c);
497 a596b957 2022-07-14 tracey lungetc(int c)
499 a596b957 2022-07-14 tracey if (c == EOF)
500 a596b957 2022-07-14 tracey return (EOF);
501 a596b957 2022-07-14 tracey if (parsebuf) {
502 a596b957 2022-07-14 tracey parseindex--;
503 a596b957 2022-07-14 tracey if (parseindex >= 0)
504 a596b957 2022-07-14 tracey return (c);
506 a596b957 2022-07-14 tracey if (pushback_index < MAXPUSHBACK-1)
507 a596b957 2022-07-14 tracey return (pushback_buffer[pushback_index++] = c);
509 a596b957 2022-07-14 tracey return (EOF);
513 a596b957 2022-07-14 tracey findeol(void)
517 a596b957 2022-07-14 tracey parsebuf = NULL;
519 a596b957 2022-07-14 tracey /* Skip to either EOF or the first real EOL. */
520 a596b957 2022-07-14 tracey while (1) {
521 a596b957 2022-07-14 tracey if (pushback_index)
522 a596b957 2022-07-14 tracey c = pushback_buffer[--pushback_index];
524 a596b957 2022-07-14 tracey c = lgetc(0);
525 a596b957 2022-07-14 tracey if (c == '\n') {
526 a596b957 2022-07-14 tracey file->lineno++;
529 a596b957 2022-07-14 tracey if (c == EOF)
532 a596b957 2022-07-14 tracey return (ERROR);
536 a596b957 2022-07-14 tracey yylex(void)
538 a596b957 2022-07-14 tracey unsigned char buf[8096];
539 a596b957 2022-07-14 tracey unsigned char *p, *val;
540 a596b957 2022-07-14 tracey int quotec, next, c;
541 a596b957 2022-07-14 tracey int token;
545 a596b957 2022-07-14 tracey c = lgetc(0);
546 a596b957 2022-07-14 tracey while (c == ' ' || c == '\t')
547 a596b957 2022-07-14 tracey c = lgetc(0); /* nothing */
549 a596b957 2022-07-14 tracey yylval.lineno = file->lineno;
550 a596b957 2022-07-14 tracey if (c == '#') {
551 a596b957 2022-07-14 tracey c = lgetc(0);
552 a596b957 2022-07-14 tracey while (c != '\n' && c != EOF)
553 a596b957 2022-07-14 tracey c = lgetc(0); /* nothing */
555 a596b957 2022-07-14 tracey if (c == '$' && parsebuf == NULL) {
556 a596b957 2022-07-14 tracey while (1) {
557 a596b957 2022-07-14 tracey c = lgetc(0);
558 a596b957 2022-07-14 tracey if (c == EOF)
559 a596b957 2022-07-14 tracey return (0);
561 a596b957 2022-07-14 tracey if (p + 1 >= buf + sizeof(buf) - 1) {
562 a596b957 2022-07-14 tracey yyerror("string too long");
563 a596b957 2022-07-14 tracey return (findeol());
565 a596b957 2022-07-14 tracey if (isalnum(c) || c == '_') {
566 a596b957 2022-07-14 tracey *p++ = c;
567 a596b957 2022-07-14 tracey continue;
569 a596b957 2022-07-14 tracey *p = '\0';
570 a596b957 2022-07-14 tracey lungetc(c);
573 a596b957 2022-07-14 tracey val = symget(buf);
574 a596b957 2022-07-14 tracey if (val == NULL) {
575 a596b957 2022-07-14 tracey yyerror("macro '%s' not defined", buf);
576 a596b957 2022-07-14 tracey return (findeol());
578 a596b957 2022-07-14 tracey parsebuf = val;
579 a596b957 2022-07-14 tracey parseindex = 0;
580 a596b957 2022-07-14 tracey goto top;
583 a596b957 2022-07-14 tracey switch (c) {
584 a596b957 2022-07-14 tracey case '\'':
585 a596b957 2022-07-14 tracey case '"':
586 a596b957 2022-07-14 tracey quotec = c;
587 a596b957 2022-07-14 tracey while (1) {
588 a596b957 2022-07-14 tracey c = lgetc(quotec);
589 a596b957 2022-07-14 tracey if (c == EOF)
590 a596b957 2022-07-14 tracey return (0);
591 a596b957 2022-07-14 tracey if (c == '\n') {
592 a596b957 2022-07-14 tracey file->lineno++;
593 a596b957 2022-07-14 tracey continue;
594 a596b957 2022-07-14 tracey } else if (c == '\\') {
595 a596b957 2022-07-14 tracey next = lgetc(quotec);
596 a596b957 2022-07-14 tracey if (next == EOF)
597 a596b957 2022-07-14 tracey return (0);
598 a596b957 2022-07-14 tracey if (next == quotec || c == ' ' || c == '\t')
599 a596b957 2022-07-14 tracey c = next;
600 a596b957 2022-07-14 tracey else if (next == '\n') {
601 a596b957 2022-07-14 tracey file->lineno++;
602 a596b957 2022-07-14 tracey continue;
604 a596b957 2022-07-14 tracey lungetc(next);
605 a596b957 2022-07-14 tracey } else if (c == quotec) {
606 a596b957 2022-07-14 tracey *p = '\0';
608 a596b957 2022-07-14 tracey } else if (c == '\0') {
609 a596b957 2022-07-14 tracey yyerror("syntax error");
610 a596b957 2022-07-14 tracey return (findeol());
612 a596b957 2022-07-14 tracey if (p + 1 >= buf + sizeof(buf) - 1) {
613 a596b957 2022-07-14 tracey yyerror("string too long");
614 a596b957 2022-07-14 tracey return (findeol());
616 a596b957 2022-07-14 tracey *p++ = c;
618 a596b957 2022-07-14 tracey yylval.v.string = strdup(buf);
619 a596b957 2022-07-14 tracey if (yylval.v.string == NULL)
620 a596b957 2022-07-14 tracey err(1, "yylex: strdup");
621 a596b957 2022-07-14 tracey return (STRING);
624 a596b957 2022-07-14 tracey #define allowed_to_end_number(x) \
625 a596b957 2022-07-14 tracey (isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=')
627 a596b957 2022-07-14 tracey if (c == '-' || isdigit(c)) {
629 a596b957 2022-07-14 tracey *p++ = c;
630 a596b957 2022-07-14 tracey if ((unsigned)(p-buf) >= sizeof(buf)) {
631 a596b957 2022-07-14 tracey yyerror("string too long");
632 a596b957 2022-07-14 tracey return (findeol());
634 a596b957 2022-07-14 tracey c = lgetc(0);
635 a596b957 2022-07-14 tracey } while (c != EOF && isdigit(c));
636 a596b957 2022-07-14 tracey lungetc(c);
637 a596b957 2022-07-14 tracey if (p == buf + 1 && buf[0] == '-')
638 a596b957 2022-07-14 tracey goto nodigits;
639 a596b957 2022-07-14 tracey if (c == EOF || allowed_to_end_number(c)) {
640 a596b957 2022-07-14 tracey const char *errstr = NULL;
642 a596b957 2022-07-14 tracey *p = '\0';
643 a596b957 2022-07-14 tracey yylval.v.number = strtonum(buf, LLONG_MIN,
644 a596b957 2022-07-14 tracey LLONG_MAX, &errstr);
645 a596b957 2022-07-14 tracey if (errstr) {
646 a596b957 2022-07-14 tracey yyerror("\"%s\" invalid number: %s",
647 a596b957 2022-07-14 tracey buf, errstr);
648 a596b957 2022-07-14 tracey return (findeol());
650 a596b957 2022-07-14 tracey return (NUMBER);
652 a596b957 2022-07-14 tracey nodigits:
653 a596b957 2022-07-14 tracey while (p > buf + 1)
654 a596b957 2022-07-14 tracey lungetc(*--p);
655 a596b957 2022-07-14 tracey c = *--p;
656 a596b957 2022-07-14 tracey if (c == '-')
657 a596b957 2022-07-14 tracey return (c);
661 a596b957 2022-07-14 tracey #define allowed_in_string(x) \
662 a596b957 2022-07-14 tracey (isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
663 a596b957 2022-07-14 tracey x != '{' && x != '}' && \
664 a596b957 2022-07-14 tracey x != '!' && x != '=' && x != '#' && \
665 a596b957 2022-07-14 tracey x != ','))
667 a596b957 2022-07-14 tracey if (isalnum(c) || c == ':' || c == '_') {
669 a596b957 2022-07-14 tracey *p++ = c;
670 a596b957 2022-07-14 tracey if ((unsigned)(p-buf) >= sizeof(buf)) {
671 a596b957 2022-07-14 tracey yyerror("string too long");
672 a596b957 2022-07-14 tracey return (findeol());
674 a596b957 2022-07-14 tracey c = lgetc(0);
675 a596b957 2022-07-14 tracey } while (c != EOF && (allowed_in_string(c)));
676 a596b957 2022-07-14 tracey lungetc(c);
677 a596b957 2022-07-14 tracey *p = '\0';
678 a596b957 2022-07-14 tracey token = lookup(buf);
679 a596b957 2022-07-14 tracey if (token == STRING) {
680 a596b957 2022-07-14 tracey yylval.v.string = strdup(buf);
681 a596b957 2022-07-14 tracey if (yylval.v.string == NULL)
682 a596b957 2022-07-14 tracey err(1, "yylex: strdup");
684 a596b957 2022-07-14 tracey return (token);
686 a596b957 2022-07-14 tracey if (c == '\n') {
687 a596b957 2022-07-14 tracey yylval.lineno = file->lineno;
688 a596b957 2022-07-14 tracey file->lineno++;
690 a596b957 2022-07-14 tracey if (c == EOF)
691 a596b957 2022-07-14 tracey return (0);
692 a596b957 2022-07-14 tracey return (c);
696 a596b957 2022-07-14 tracey check_file_secrecy(int fd, const char *fname)
698 a596b957 2022-07-14 tracey struct stat st;
700 a596b957 2022-07-14 tracey if (fstat(fd, &st)) {
701 a596b957 2022-07-14 tracey log_warn("cannot stat %s", fname);
702 a596b957 2022-07-14 tracey return (-1);
704 a596b957 2022-07-14 tracey if (st.st_uid != 0 && st.st_uid != getuid()) {
705 a596b957 2022-07-14 tracey log_warnx("%s: owner not root or current user", fname);
706 a596b957 2022-07-14 tracey return (-1);
708 a596b957 2022-07-14 tracey if (st.st_mode & (S_IWGRP | S_IXGRP | S_IRWXO)) {
709 a596b957 2022-07-14 tracey log_warnx("%s: group writable or world read/writable", fname);
710 a596b957 2022-07-14 tracey return (-1);
712 a596b957 2022-07-14 tracey return (0);
715 a596b957 2022-07-14 tracey struct file *
716 a596b957 2022-07-14 tracey newfile(const char *name, int secret)
718 a596b957 2022-07-14 tracey struct file *nfile;
720 a596b957 2022-07-14 tracey nfile = calloc(1, sizeof(struct file));
721 a596b957 2022-07-14 tracey if (nfile == NULL) {
722 a596b957 2022-07-14 tracey log_warn("calloc");
723 a596b957 2022-07-14 tracey return (NULL);
725 a596b957 2022-07-14 tracey nfile->name = strdup(name);
726 a596b957 2022-07-14 tracey if (nfile->name == NULL) {
727 a596b957 2022-07-14 tracey log_warn("strdup");
728 a596b957 2022-07-14 tracey free(nfile);
729 a596b957 2022-07-14 tracey return (NULL);
731 a596b957 2022-07-14 tracey nfile->stream = fopen(nfile->name, "r");
732 a596b957 2022-07-14 tracey if (nfile->stream == NULL) {
733 a596b957 2022-07-14 tracey /* no warning, we don't require a conf file */
734 a596b957 2022-07-14 tracey free(nfile->name);
735 a596b957 2022-07-14 tracey free(nfile);
736 a596b957 2022-07-14 tracey return (NULL);
737 a596b957 2022-07-14 tracey } else if (secret &&
738 a596b957 2022-07-14 tracey check_file_secrecy(fileno(nfile->stream), nfile->name)) {
739 a596b957 2022-07-14 tracey fclose(nfile->stream);
740 a596b957 2022-07-14 tracey free(nfile->name);
741 a596b957 2022-07-14 tracey free(nfile);
742 a596b957 2022-07-14 tracey return (NULL);
744 a596b957 2022-07-14 tracey nfile->lineno = 1;
745 a596b957 2022-07-14 tracey return (nfile);
748 a596b957 2022-07-14 tracey static void
749 a596b957 2022-07-14 tracey closefile(struct file *xfile)
751 a596b957 2022-07-14 tracey fclose(xfile->stream);
752 a596b957 2022-07-14 tracey free(xfile->name);
753 a596b957 2022-07-14 tracey free(xfile);
756 a0037b73 2022-08-03 stsp static void
757 a0037b73 2022-08-03 stsp add_default_server(void)
759 a0037b73 2022-08-03 stsp new_srv = conf_new_server(D_SITENAME);
760 a0037b73 2022-08-03 stsp log_debug("%s: adding default server %s", __func__, D_SITENAME);
764 a596b957 2022-07-14 tracey parse_config(const char *filename, struct gotwebd *env)
766 a596b957 2022-07-14 tracey struct sym *sym, *next;
768 a596b957 2022-07-14 tracey if (config_init(env) == -1)
769 a596b957 2022-07-14 tracey fatalx("failed to initialize configuration");
771 a596b957 2022-07-14 tracey gotwebd = env;
773 a0037b73 2022-08-03 stsp file = newfile(filename, 0);
774 a0037b73 2022-08-03 stsp if (file == NULL) {
775 a0037b73 2022-08-03 stsp add_default_server();
776 a0037b73 2022-08-03 stsp sockets_parse_sockets(env);
777 a0037b73 2022-08-03 stsp /* just return, as we don't require a conf file */
778 a0037b73 2022-08-03 stsp return (0);
781 a596b957 2022-07-14 tracey yyparse();
782 a596b957 2022-07-14 tracey errors = file->errors;
783 a596b957 2022-07-14 tracey closefile(file);
785 a596b957 2022-07-14 tracey /* Free macros and check which have not been used. */
786 a596b957 2022-07-14 tracey TAILQ_FOREACH_SAFE(sym, &symhead, entry, next) {
787 a596b957 2022-07-14 tracey if ((gotwebd->gotwebd_verbose > 1) && !sym->used)
788 a596b957 2022-07-14 tracey fprintf(stderr, "warning: macro '%s' not used\n",
789 a596b957 2022-07-14 tracey sym->nam);
790 a596b957 2022-07-14 tracey if (!sym->persist) {
791 a596b957 2022-07-14 tracey free(sym->nam);
792 a596b957 2022-07-14 tracey free(sym->val);
793 a596b957 2022-07-14 tracey TAILQ_REMOVE(&symhead, sym, entry);
794 a596b957 2022-07-14 tracey free(sym);
798 a596b957 2022-07-14 tracey if (errors)
799 a596b957 2022-07-14 tracey return (-1);
801 a596b957 2022-07-14 tracey /* just add default server if no config specified */
802 a0037b73 2022-08-03 stsp if (gotwebd->server_cnt == 0)
803 a0037b73 2022-08-03 stsp add_default_server();
805 a596b957 2022-07-14 tracey /* setup our listening sockets */
806 a596b957 2022-07-14 tracey sockets_parse_sockets(env);
808 a596b957 2022-07-14 tracey return (0);
811 a596b957 2022-07-14 tracey struct server *
812 a596b957 2022-07-14 tracey conf_new_server(const char *name)
814 a596b957 2022-07-14 tracey struct server *srv = NULL;
816 a596b957 2022-07-14 tracey srv = calloc(1, sizeof(*srv));
817 a596b957 2022-07-14 tracey if (srv == NULL)
818 a596b957 2022-07-14 tracey fatalx("%s: calloc", __func__);
820 a596b957 2022-07-14 tracey n = strlcpy(srv->name, name, sizeof(srv->name));
821 a596b957 2022-07-14 tracey if (n >= sizeof(srv->name))
822 a596b957 2022-07-14 tracey fatalx("%s: strlcpy", __func__);
823 a596b957 2022-07-14 tracey n = snprintf(srv->unix_socket_name,
824 a596b957 2022-07-14 tracey sizeof(srv->unix_socket_name), "%s%s", D_HTTPD_CHROOT,
825 a596b957 2022-07-14 tracey D_UNIX_SOCKET);
826 438d0cc3 2022-08-16 op if (n < 0 || (size_t)n >= sizeof(srv->unix_socket_name))
827 a596b957 2022-07-14 tracey fatalx("%s: snprintf", __func__);
828 a596b957 2022-07-14 tracey n = strlcpy(srv->repos_path, D_GOTPATH,
829 a596b957 2022-07-14 tracey sizeof(srv->repos_path));
830 a596b957 2022-07-14 tracey if (n >= sizeof(srv->repos_path))
831 a596b957 2022-07-14 tracey fatalx("%s: strlcpy", __func__);
832 a596b957 2022-07-14 tracey n = strlcpy(srv->site_name, D_SITENAME,
833 a596b957 2022-07-14 tracey sizeof(srv->site_name));
834 a596b957 2022-07-14 tracey if (n >= sizeof(srv->site_name))
835 a596b957 2022-07-14 tracey fatalx("%s: strlcpy", __func__);
836 a596b957 2022-07-14 tracey n = strlcpy(srv->site_owner, D_SITEOWNER,
837 a596b957 2022-07-14 tracey sizeof(srv->site_owner));
838 a596b957 2022-07-14 tracey if (n >= sizeof(srv->site_owner))
839 a596b957 2022-07-14 tracey fatalx("%s: strlcpy", __func__);
840 a596b957 2022-07-14 tracey n = strlcpy(srv->site_link, D_SITELINK,
841 a596b957 2022-07-14 tracey sizeof(srv->site_link));
842 a596b957 2022-07-14 tracey if (n >= sizeof(srv->site_link))
843 a596b957 2022-07-14 tracey fatalx("%s: strlcpy", __func__);
844 a596b957 2022-07-14 tracey n = strlcpy(srv->logo, D_GOTLOGO,
845 a596b957 2022-07-14 tracey sizeof(srv->logo));
846 a596b957 2022-07-14 tracey if (n >= sizeof(srv->logo))
847 a596b957 2022-07-14 tracey fatalx("%s: strlcpy", __func__);
848 a596b957 2022-07-14 tracey n = strlcpy(srv->logo_url, D_GOTURL, sizeof(srv->logo_url));
849 a596b957 2022-07-14 tracey if (n >= sizeof(srv->logo_url))
850 a596b957 2022-07-14 tracey fatalx("%s: strlcpy", __func__);
851 a596b957 2022-07-14 tracey n = strlcpy(srv->custom_css, D_GOTWEBCSS, sizeof(srv->custom_css));
852 a596b957 2022-07-14 tracey if (n >= sizeof(srv->custom_css))
853 a596b957 2022-07-14 tracey fatalx("%s: strlcpy", __func__);
855 a596b957 2022-07-14 tracey srv->show_site_owner = D_SHOWSOWNER;
856 a596b957 2022-07-14 tracey srv->show_repo_owner = D_SHOWROWNER;
857 a596b957 2022-07-14 tracey srv->show_repo_age = D_SHOWAGE;
858 a596b957 2022-07-14 tracey srv->show_repo_description = D_SHOWDESC;
859 a596b957 2022-07-14 tracey srv->show_repo_cloneurl = D_SHOWURL;
861 a596b957 2022-07-14 tracey srv->max_repos_display = D_MAXREPODISP;
862 a596b957 2022-07-14 tracey srv->max_commits_display = D_MAXCOMMITDISP;
863 a596b957 2022-07-14 tracey srv->max_repos = D_MAXREPO;
865 a596b957 2022-07-14 tracey srv->unix_socket = 1;
866 6c8aa58f 2022-08-30 stsp srv->fcgi_socket = 0;
868 e087e1f6 2022-08-16 stsp TAILQ_INIT(&srv->al);
869 2ad48e9a 2022-08-16 stsp TAILQ_INSERT_TAIL(&gotwebd->servers, srv, entry);
870 a596b957 2022-07-14 tracey gotwebd->server_cnt++;
872 a596b957 2022-07-14 tracey return srv;
876 a596b957 2022-07-14 tracey symset(const char *nam, const char *val, int persist)
878 a596b957 2022-07-14 tracey struct sym *sym;
880 a596b957 2022-07-14 tracey TAILQ_FOREACH(sym, &symhead, entry) {
881 a596b957 2022-07-14 tracey if (strcmp(nam, sym->nam) == 0)
885 a596b957 2022-07-14 tracey if (sym != NULL) {
886 a596b957 2022-07-14 tracey if (sym->persist == 1)
887 a596b957 2022-07-14 tracey return (0);
889 a596b957 2022-07-14 tracey free(sym->nam);
890 a596b957 2022-07-14 tracey free(sym->val);
891 a596b957 2022-07-14 tracey TAILQ_REMOVE(&symhead, sym, entry);
892 a596b957 2022-07-14 tracey free(sym);
895 a596b957 2022-07-14 tracey sym = calloc(1, sizeof(*sym));
896 a596b957 2022-07-14 tracey if (sym == NULL)
897 a596b957 2022-07-14 tracey return (-1);
899 a596b957 2022-07-14 tracey sym->nam = strdup(nam);
900 a596b957 2022-07-14 tracey if (sym->nam == NULL) {
901 a596b957 2022-07-14 tracey free(sym);
902 a596b957 2022-07-14 tracey return (-1);
904 a596b957 2022-07-14 tracey sym->val = strdup(val);
905 a596b957 2022-07-14 tracey if (sym->val == NULL) {
906 a596b957 2022-07-14 tracey free(sym->nam);
907 a596b957 2022-07-14 tracey free(sym);
908 a596b957 2022-07-14 tracey return (-1);
910 a596b957 2022-07-14 tracey sym->used = 0;
911 a596b957 2022-07-14 tracey sym->persist = persist;
912 a596b957 2022-07-14 tracey TAILQ_INSERT_TAIL(&symhead, sym, entry);
913 a596b957 2022-07-14 tracey return (0);
917 a596b957 2022-07-14 tracey cmdline_symset(char *s)
919 a596b957 2022-07-14 tracey char *sym, *val;
922 a596b957 2022-07-14 tracey val = strrchr(s, '=');
923 a596b957 2022-07-14 tracey if (val == NULL)
924 a596b957 2022-07-14 tracey return (-1);
926 4cdd299d 2022-09-05 op sym = strndup(s, val - s);
927 a596b957 2022-07-14 tracey if (sym == NULL)
928 4cdd299d 2022-09-05 op fatal("%s: strndup", __func__);
930 a596b957 2022-07-14 tracey ret = symset(sym, val + 1, 1);
931 a596b957 2022-07-14 tracey free(sym);
933 a596b957 2022-07-14 tracey return (ret);
937 a596b957 2022-07-14 tracey symget(const char *nam)
939 a596b957 2022-07-14 tracey struct sym *sym;
941 a596b957 2022-07-14 tracey TAILQ_FOREACH(sym, &symhead, entry) {
942 a596b957 2022-07-14 tracey if (strcmp(nam, sym->nam) == 0) {
943 a596b957 2022-07-14 tracey sym->used = 1;
944 a596b957 2022-07-14 tracey return (sym->val);
947 a596b957 2022-07-14 tracey return (NULL);
951 a596b957 2022-07-14 tracey getservice(const char *n)
953 a596b957 2022-07-14 tracey struct servent *s;
954 a596b957 2022-07-14 tracey const char *errstr;
955 a596b957 2022-07-14 tracey long long llval;
957 a596b957 2022-07-14 tracey llval = strtonum(n, 0, UINT16_MAX, &errstr);
958 a596b957 2022-07-14 tracey if (errstr) {
959 a596b957 2022-07-14 tracey s = getservbyname(n, "tcp");
960 a596b957 2022-07-14 tracey if (s == NULL)
961 a596b957 2022-07-14 tracey s = getservbyname(n, "udp");
962 a596b957 2022-07-14 tracey if (s == NULL)
963 a596b957 2022-07-14 tracey return (-1);
964 859aa9f4 2022-08-19 stsp return ntohs(s->s_port);
967 859aa9f4 2022-08-19 stsp return (unsigned short)llval;
970 a596b957 2022-07-14 tracey struct address *
971 a596b957 2022-07-14 tracey host_v4(const char *s)
973 a596b957 2022-07-14 tracey struct in_addr ina;
974 a596b957 2022-07-14 tracey struct sockaddr_in *sain;
975 a596b957 2022-07-14 tracey struct address *h;
977 a596b957 2022-07-14 tracey memset(&ina, 0, sizeof(ina));
978 a596b957 2022-07-14 tracey if (inet_pton(AF_INET, s, &ina) != 1)
979 a596b957 2022-07-14 tracey return (NULL);
981 a596b957 2022-07-14 tracey if ((h = calloc(1, sizeof(*h))) == NULL)
982 a596b957 2022-07-14 tracey fatal(__func__);
983 a596b957 2022-07-14 tracey sain = (struct sockaddr_in *)&h->ss;
984 86b4b772 2022-07-29 stsp got_sockaddr_inet_init(sain, &ina);
985 a596b957 2022-07-14 tracey if (sain->sin_addr.s_addr == INADDR_ANY)
986 a596b957 2022-07-14 tracey h->prefixlen = 0; /* 0.0.0.0 address */
988 a596b957 2022-07-14 tracey h->prefixlen = -1; /* host address */
989 a596b957 2022-07-14 tracey return (h);
992 a596b957 2022-07-14 tracey struct address *
993 a596b957 2022-07-14 tracey host_v6(const char *s)
995 a596b957 2022-07-14 tracey struct addrinfo hints, *res;
996 86b4b772 2022-07-29 stsp struct sockaddr_in6 *sa_in6, *ra;
997 a596b957 2022-07-14 tracey struct address *h = NULL;
999 a596b957 2022-07-14 tracey memset(&hints, 0, sizeof(hints));
1000 a596b957 2022-07-14 tracey hints.ai_family = AF_INET6;
1001 a596b957 2022-07-14 tracey hints.ai_socktype = SOCK_DGRAM; /* dummy */
1002 a596b957 2022-07-14 tracey hints.ai_flags = AI_NUMERICHOST;
1003 a596b957 2022-07-14 tracey if (getaddrinfo(s, "0", &hints, &res) == 0) {
1004 a596b957 2022-07-14 tracey if ((h = calloc(1, sizeof(*h))) == NULL)
1005 a596b957 2022-07-14 tracey fatal(__func__);
1006 a596b957 2022-07-14 tracey sa_in6 = (struct sockaddr_in6 *)&h->ss;
1007 86b4b772 2022-07-29 stsp ra = (struct sockaddr_in6 *)res->ai_addr;
1008 86b4b772 2022-07-29 stsp got_sockaddr_inet6_init(sa_in6, &ra->sin6_addr,
1009 86b4b772 2022-07-29 stsp ra->sin6_scope_id);
1010 a596b957 2022-07-14 tracey if (memcmp(&sa_in6->sin6_addr, &in6addr_any,
1011 a596b957 2022-07-14 tracey sizeof(sa_in6->sin6_addr)) == 0)
1012 a596b957 2022-07-14 tracey h->prefixlen = 0; /* any address */
1014 a596b957 2022-07-14 tracey h->prefixlen = -1; /* host address */
1015 a596b957 2022-07-14 tracey freeaddrinfo(res);
1018 a596b957 2022-07-14 tracey return (h);
1022 67d8de2a 2022-08-29 stsp host_dns(const char *s, struct server *new_srv, int max,
1023 a596b957 2022-07-14 tracey in_port_t port, const char *ifname, int ipproto)
1025 a596b957 2022-07-14 tracey struct addrinfo hints, *res0, *res;
1026 a596b957 2022-07-14 tracey int error, cnt = 0;
1027 a596b957 2022-07-14 tracey struct sockaddr_in *sain;
1028 a596b957 2022-07-14 tracey struct sockaddr_in6 *sin6;
1029 a596b957 2022-07-14 tracey struct address *h;
1031 67d8de2a 2022-08-29 stsp if ((cnt = host_if(s, new_srv, max, port, ifname, ipproto)) != 0)
1032 a596b957 2022-07-14 tracey return (cnt);
1034 a596b957 2022-07-14 tracey memset(&hints, 0, sizeof(hints));
1035 a596b957 2022-07-14 tracey hints.ai_family = PF_UNSPEC;
1036 a596b957 2022-07-14 tracey hints.ai_socktype = SOCK_DGRAM; /* DUMMY */
1037 a596b957 2022-07-14 tracey hints.ai_flags = AI_ADDRCONFIG;
1038 a596b957 2022-07-14 tracey error = getaddrinfo(s, NULL, &hints, &res0);
1039 a596b957 2022-07-14 tracey if (error == EAI_AGAIN || error == EAI_NODATA || error == EAI_NONAME)
1040 a596b957 2022-07-14 tracey return (0);
1041 a596b957 2022-07-14 tracey if (error) {
1042 a596b957 2022-07-14 tracey log_warnx("%s: could not parse \"%s\": %s", __func__, s,
1043 a596b957 2022-07-14 tracey gai_strerror(error));
1044 a596b957 2022-07-14 tracey return (-1);
1047 a596b957 2022-07-14 tracey for (res = res0; res && cnt < max; res = res->ai_next) {
1048 a596b957 2022-07-14 tracey if (res->ai_family != AF_INET &&
1049 a596b957 2022-07-14 tracey res->ai_family != AF_INET6)
1050 a596b957 2022-07-14 tracey continue;
1051 a596b957 2022-07-14 tracey if ((h = calloc(1, sizeof(*h))) == NULL)
1052 a596b957 2022-07-14 tracey fatal(__func__);
1054 a596b957 2022-07-14 tracey if (port)
1055 a596b957 2022-07-14 tracey h->port = port;
1056 a596b957 2022-07-14 tracey if (ifname != NULL) {
1057 a596b957 2022-07-14 tracey if (strlcpy(h->ifname, ifname, sizeof(h->ifname)) >=
1058 a596b957 2022-07-14 tracey sizeof(h->ifname)) {
1059 a596b957 2022-07-14 tracey log_warnx("%s: interface name truncated",
1060 a596b957 2022-07-14 tracey __func__);
1061 a596b957 2022-07-14 tracey freeaddrinfo(res0);
1062 a596b957 2022-07-14 tracey free(h);
1063 a596b957 2022-07-14 tracey return (-1);
1066 a596b957 2022-07-14 tracey if (ipproto != -1)
1067 a596b957 2022-07-14 tracey h->ipproto = ipproto;
1068 a596b957 2022-07-14 tracey h->ss.ss_family = res->ai_family;
1069 a596b957 2022-07-14 tracey h->prefixlen = -1; /* host address */
1071 a596b957 2022-07-14 tracey if (res->ai_family == AF_INET) {
1072 86b4b772 2022-07-29 stsp struct sockaddr_in *ra;
1073 a596b957 2022-07-14 tracey sain = (struct sockaddr_in *)&h->ss;
1074 86b4b772 2022-07-29 stsp ra = (struct sockaddr_in *)res->ai_addr;
1075 86b4b772 2022-07-29 stsp got_sockaddr_inet_init(sain, &ra->sin_addr);
1076 a596b957 2022-07-14 tracey } else {
1077 86b4b772 2022-07-29 stsp struct sockaddr_in6 *ra;
1078 a596b957 2022-07-14 tracey sin6 = (struct sockaddr_in6 *)&h->ss;
1079 86b4b772 2022-07-29 stsp ra = (struct sockaddr_in6 *)res->ai_addr;
1080 86b4b772 2022-07-29 stsp got_sockaddr_inet6_init(sin6, &ra->sin6_addr, 0);
1083 67d8de2a 2022-08-29 stsp if (add_addr(new_srv, h))
1084 67d8de2a 2022-08-29 stsp return -1;
1087 a596b957 2022-07-14 tracey if (cnt == max && res) {
1088 a596b957 2022-07-14 tracey log_warnx("%s: %s resolves to more than %d hosts", __func__,
1089 a596b957 2022-07-14 tracey s, max);
1091 a596b957 2022-07-14 tracey freeaddrinfo(res0);
1092 a596b957 2022-07-14 tracey return (cnt);
1096 67d8de2a 2022-08-29 stsp host_if(const char *s, struct server *new_srv, int max,
1097 a596b957 2022-07-14 tracey in_port_t port, const char *ifname, int ipproto)
1099 a596b957 2022-07-14 tracey struct ifaddrs *ifap, *p;
1100 a596b957 2022-07-14 tracey struct sockaddr_in *sain;
1101 a596b957 2022-07-14 tracey struct sockaddr_in6 *sin6;
1102 a596b957 2022-07-14 tracey struct address *h;
1103 a596b957 2022-07-14 tracey int cnt = 0, af;
1105 a596b957 2022-07-14 tracey if (getifaddrs(&ifap) == -1)
1106 a596b957 2022-07-14 tracey fatal("getifaddrs");
1108 a596b957 2022-07-14 tracey /* First search for IPv4 addresses */
1109 a596b957 2022-07-14 tracey af = AF_INET;
1112 a596b957 2022-07-14 tracey for (p = ifap; p != NULL && cnt < max; p = p->ifa_next) {
1113 a596b957 2022-07-14 tracey if (p->ifa_addr == NULL ||
1114 a596b957 2022-07-14 tracey p->ifa_addr->sa_family != af ||
1115 a596b957 2022-07-14 tracey (strcmp(s, p->ifa_name) != 0 &&
1116 a596b957 2022-07-14 tracey !is_if_in_group(p->ifa_name, s)))
1117 a596b957 2022-07-14 tracey continue;
1118 a596b957 2022-07-14 tracey if ((h = calloc(1, sizeof(*h))) == NULL)
1119 a596b957 2022-07-14 tracey fatal("calloc");
1121 a596b957 2022-07-14 tracey if (port)
1122 a596b957 2022-07-14 tracey h->port = port;
1123 a596b957 2022-07-14 tracey if (ifname != NULL) {
1124 a596b957 2022-07-14 tracey if (strlcpy(h->ifname, ifname, sizeof(h->ifname)) >=
1125 a596b957 2022-07-14 tracey sizeof(h->ifname)) {
1126 a596b957 2022-07-14 tracey log_warnx("%s: interface name truncated",
1127 a596b957 2022-07-14 tracey __func__);
1128 a596b957 2022-07-14 tracey free(h);
1129 a596b957 2022-07-14 tracey freeifaddrs(ifap);
1130 a596b957 2022-07-14 tracey return (-1);
1133 a596b957 2022-07-14 tracey if (ipproto != -1)
1134 a596b957 2022-07-14 tracey h->ipproto = ipproto;
1135 a596b957 2022-07-14 tracey h->ss.ss_family = af;
1136 a596b957 2022-07-14 tracey h->prefixlen = -1; /* host address */
1138 a596b957 2022-07-14 tracey if (af == AF_INET) {
1139 86b4b772 2022-07-29 stsp struct sockaddr_in *ra;
1140 a596b957 2022-07-14 tracey sain = (struct sockaddr_in *)&h->ss;
1141 86b4b772 2022-07-29 stsp ra = (struct sockaddr_in *)p->ifa_addr;
1142 86b4b772 2022-07-29 stsp got_sockaddr_inet_init(sain, &ra->sin_addr);
1143 a596b957 2022-07-14 tracey } else {
1144 86b4b772 2022-07-29 stsp struct sockaddr_in6 *ra;
1145 a596b957 2022-07-14 tracey sin6 = (struct sockaddr_in6 *)&h->ss;
1146 86b4b772 2022-07-29 stsp ra = (struct sockaddr_in6 *)p->ifa_addr;
1147 86b4b772 2022-07-29 stsp got_sockaddr_inet6_init(sin6, &ra->sin6_addr,
1148 86b4b772 2022-07-29 stsp ra->sin6_scope_id);
1151 67d8de2a 2022-08-29 stsp if (add_addr(new_srv, h))
1152 67d8de2a 2022-08-29 stsp return -1;
1155 a596b957 2022-07-14 tracey if (af == AF_INET) {
1156 a596b957 2022-07-14 tracey /* Next search for IPv6 addresses */
1157 a596b957 2022-07-14 tracey af = AF_INET6;
1158 a596b957 2022-07-14 tracey goto nextaf;
1161 a596b957 2022-07-14 tracey if (cnt > max) {
1162 a596b957 2022-07-14 tracey log_warnx("%s: %s resolves to more than %d hosts", __func__,
1163 a596b957 2022-07-14 tracey s, max);
1165 a596b957 2022-07-14 tracey freeifaddrs(ifap);
1166 a596b957 2022-07-14 tracey return (cnt);
1170 67d8de2a 2022-08-29 stsp host(const char *s, struct server *new_srv, int max,
1171 a596b957 2022-07-14 tracey in_port_t port, const char *ifname, int ipproto)
1173 a596b957 2022-07-14 tracey struct address *h;
1175 a596b957 2022-07-14 tracey h = host_v4(s);
1177 a596b957 2022-07-14 tracey /* IPv6 address? */
1178 a596b957 2022-07-14 tracey if (h == NULL)
1179 a596b957 2022-07-14 tracey h = host_v6(s);
1181 a596b957 2022-07-14 tracey if (h != NULL) {
1182 a596b957 2022-07-14 tracey if (port)
1183 a596b957 2022-07-14 tracey h->port = port;
1184 a596b957 2022-07-14 tracey if (ifname != NULL) {
1185 a596b957 2022-07-14 tracey if (strlcpy(h->ifname, ifname, sizeof(h->ifname)) >=
1186 a596b957 2022-07-14 tracey sizeof(h->ifname)) {
1187 a596b957 2022-07-14 tracey log_warnx("%s: interface name truncated",
1188 a596b957 2022-07-14 tracey __func__);
1189 a596b957 2022-07-14 tracey free(h);
1190 a596b957 2022-07-14 tracey return (-1);
1193 a596b957 2022-07-14 tracey if (ipproto != -1)
1194 a596b957 2022-07-14 tracey h->ipproto = ipproto;
1196 67d8de2a 2022-08-29 stsp if (add_addr(new_srv, h))
1197 67d8de2a 2022-08-29 stsp return -1;
1198 a596b957 2022-07-14 tracey return (1);
1201 67d8de2a 2022-08-29 stsp return (host_dns(s, new_srv, max, port, ifname, ipproto));
1205 a596b957 2022-07-14 tracey is_if_in_group(const char *ifname, const char *groupname)
1207 a596b957 2022-07-14 tracey unsigned int len;
1208 a596b957 2022-07-14 tracey struct ifgroupreq ifgr;
1209 a596b957 2022-07-14 tracey struct ifg_req *ifg;
1211 a596b957 2022-07-14 tracey int ret = 0;
1213 a596b957 2022-07-14 tracey if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
1214 a596b957 2022-07-14 tracey err(1, "socket");
1216 a596b957 2022-07-14 tracey memset(&ifgr, 0, sizeof(ifgr));
1217 a596b957 2022-07-14 tracey if (strlcpy(ifgr.ifgr_name, ifname, IFNAMSIZ) >= IFNAMSIZ)
1218 a596b957 2022-07-14 tracey err(1, "IFNAMSIZ");
1219 a596b957 2022-07-14 tracey if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) {
1220 a596b957 2022-07-14 tracey if (errno == EINVAL || errno == ENOTTY)
1221 a596b957 2022-07-14 tracey goto end;
1222 a596b957 2022-07-14 tracey err(1, "SIOCGIFGROUP");
1225 a596b957 2022-07-14 tracey len = ifgr.ifgr_len;
1226 a596b957 2022-07-14 tracey ifgr.ifgr_groups = calloc(len / sizeof(struct ifg_req),
1227 a596b957 2022-07-14 tracey sizeof(struct ifg_req));
1228 a596b957 2022-07-14 tracey if (ifgr.ifgr_groups == NULL)
1229 a596b957 2022-07-14 tracey err(1, "getifgroups");
1230 a596b957 2022-07-14 tracey if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1)
1231 a596b957 2022-07-14 tracey err(1, "SIOCGIFGROUP");
1233 a596b957 2022-07-14 tracey ifg = ifgr.ifgr_groups;
1234 a596b957 2022-07-14 tracey for (; ifg && len >= sizeof(struct ifg_req); ifg++) {
1235 a596b957 2022-07-14 tracey len -= sizeof(struct ifg_req);
1236 a596b957 2022-07-14 tracey if (strcmp(ifg->ifgrq_group, groupname) == 0) {
1237 a596b957 2022-07-14 tracey ret = 1;
1241 a596b957 2022-07-14 tracey free(ifgr.ifgr_groups);
1244 a596b957 2022-07-14 tracey close(s);
1245 a596b957 2022-07-14 tracey return (ret);
1249 67d8de2a 2022-08-29 stsp get_addrs(const char *addr, struct server *new_srv, in_port_t port)
1251 a596b957 2022-07-14 tracey if (strcmp("", addr) == 0) {
1252 67d8de2a 2022-08-29 stsp if (host("127.0.0.1", new_srv, 1, port, "127.0.0.1",
1253 67d8de2a 2022-08-29 stsp -1) <= 0) {
1254 a596b957 2022-07-14 tracey yyerror("invalid listen ip: %s",
1255 2fb25d87 2022-08-19 stsp "127.0.0.1");
1256 a596b957 2022-07-14 tracey return (-1);
1258 67d8de2a 2022-08-29 stsp if (host("::1", new_srv, 1, port, "::1", -1) <= 0) {
1259 2fb25d87 2022-08-19 stsp yyerror("invalid listen ip: %s", "::1");
1260 a596b957 2022-07-14 tracey return (-1);
1262 a596b957 2022-07-14 tracey } else {
1263 67d8de2a 2022-08-29 stsp if (host(addr, new_srv, GOTWEBD_MAXIFACE, port, addr,
1264 a596b957 2022-07-14 tracey -1) <= 0) {
1265 a596b957 2022-07-14 tracey yyerror("invalid listen ip: %s", addr);
1266 a596b957 2022-07-14 tracey return (-1);
1269 a596b957 2022-07-14 tracey return (0);
1273 67d8de2a 2022-08-29 stsp addr_dup_check(struct addresslist *al, struct address *h, const char *new_srv,
1274 67d8de2a 2022-08-29 stsp const char *other_srv)
1276 67d8de2a 2022-08-29 stsp struct address *a;
1278 67d8de2a 2022-08-29 stsp char buf[INET6_ADDRSTRLEN];
1279 67d8de2a 2022-08-29 stsp const char *addrstr;
1281 67d8de2a 2022-08-29 stsp TAILQ_FOREACH(a, al, entry) {
1282 67d8de2a 2022-08-29 stsp if (memcmp(&a->ss, &h->ss, sizeof(h->ss)) != 0 ||
1283 67d8de2a 2022-08-29 stsp a->port != h->port)
1286 67d8de2a 2022-08-29 stsp switch (h->ss.ss_family) {
1287 67d8de2a 2022-08-29 stsp case AF_INET:
1288 67d8de2a 2022-08-29 stsp ia = &((struct sockaddr_in *)(&h->ss))->sin_addr;
1290 67d8de2a 2022-08-29 stsp case AF_INET6:
1291 67d8de2a 2022-08-29 stsp ia = &((struct sockaddr_in6 *)(&h->ss))->sin6_addr;
1294 67d8de2a 2022-08-29 stsp yyerror("unknown address family: %d", h->ss.ss_family);
1295 67d8de2a 2022-08-29 stsp return -1;
1297 67d8de2a 2022-08-29 stsp addrstr = inet_ntop(h->ss.ss_family, ia, buf, sizeof(buf));
1298 67d8de2a 2022-08-29 stsp if (addrstr) {
1299 67d8de2a 2022-08-29 stsp if (other_srv) {
1300 67d8de2a 2022-08-29 stsp yyerror("server %s: duplicate fcgi listen "
1301 67d8de2a 2022-08-29 stsp "address %s:%d, already used by server %s",
1302 67d8de2a 2022-08-29 stsp new_srv, addrstr, h->port, other_srv);
1304 67d8de2a 2022-08-29 stsp log_warnx("server: %s: duplicate fcgi listen "
1305 67d8de2a 2022-08-29 stsp "address %s:%d", new_srv, addrstr, h->port);
1308 67d8de2a 2022-08-29 stsp if (other_srv) {
1309 67d8de2a 2022-08-29 stsp yyerror("server: %s: duplicate fcgi listen "
1310 67d8de2a 2022-08-29 stsp "address, already used by server %s",
1311 67d8de2a 2022-08-29 stsp new_srv, other_srv);
1313 67d8de2a 2022-08-29 stsp log_warnx("server %s: duplicate fcgi listen "
1314 67d8de2a 2022-08-29 stsp "address", new_srv);
1318 67d8de2a 2022-08-29 stsp return -1;
1325 67d8de2a 2022-08-29 stsp add_addr(struct server *new_srv, struct address *h)
1327 67d8de2a 2022-08-29 stsp struct server *srv;
1329 67d8de2a 2022-08-29 stsp /* Address cannot be shared between different servers. */
1330 67d8de2a 2022-08-29 stsp TAILQ_FOREACH(srv, &gotwebd->servers, entry) {
1331 67d8de2a 2022-08-29 stsp if (srv == new_srv)
1333 67d8de2a 2022-08-29 stsp if (addr_dup_check(&srv->al, h, new_srv->name, srv->name))
1334 67d8de2a 2022-08-29 stsp return -1;
1337 67d8de2a 2022-08-29 stsp /* Tolerate duplicate address lines within the scope of a server. */
1338 67d8de2a 2022-08-29 stsp if (addr_dup_check(&new_srv->al, h, NULL, NULL) == 0)
1339 67d8de2a 2022-08-29 stsp TAILQ_INSERT_TAIL(&new_srv->al, h, entry);
