1 //===-- sanitizer_platform_limits_openbsd.cpp -----------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file is a part of Sanitizer common code.
10 //
11 // Sizes and layouts of platform-specific NetBSD data structures.
12 //===----------------------------------------------------------------------===//
13 
14 #include "sanitizer_platform.h"
15 
16 #if SANITIZER_OPENBSD
17 #include <arpa/inet.h>
18 #include <dirent.h>
19 #include <glob.h>
20 #include <grp.h>
21 #include <ifaddrs.h>
22 #include <limits.h>
23 #include <link_elf.h>
24 #include <sys/socket.h>
25 #include <net/if.h>
26 #include <net/ppp_defs.h>
27 #include <net/route.h>
28 #include <netdb.h>
29 #include <netinet/in.h>
30 #include <netinet/ip_mroute.h>
31 #include <poll.h>
32 #include <pthread.h>
33 #include <pwd.h>
34 #include <semaphore.h>
35 #include <signal.h>
36 #include <soundcard.h>
37 #include <stddef.h>
38 #include <stdint.h>
39 #include <sys/filio.h>
40 #include <sys/ipc.h>
41 #include <sys/mman.h>
42 #include <sys/mount.h>
43 #include <sys/msg.h>
44 #include <sys/mtio.h>
45 #include <sys/ptrace.h>
46 #include <sys/resource.h>
47 #include <sys/shm.h>
48 #include <sys/signal.h>
49 #include <sys/sockio.h>
50 #include <sys/stat.h>
51 #include <sys/statvfs.h>
52 #include <sys/time.h>
53 #include <sys/times.h>
54 #include <sys/types.h>
55 #include <sys/utsname.h>
56 #include <term.h>
57 #include <time.h>
58 #include <utime.h>
59 #include <utmp.h>
60 #include <wchar.h>
61 
62 // Include these after system headers to avoid name clashes and ambiguities.
63 #include "sanitizer_internal_defs.h"
64 #include "sanitizer_platform_limits_openbsd.h"
65 
66 namespace __sanitizer {
67 unsigned struct_utsname_sz = sizeof(struct utsname);
68 unsigned struct_stat_sz = sizeof(struct stat);
69 unsigned struct_rusage_sz = sizeof(struct rusage);
70 unsigned struct_tm_sz = sizeof(struct tm);
71 unsigned struct_passwd_sz = sizeof(struct passwd);
72 unsigned struct_group_sz = sizeof(struct group);
73 unsigned siginfo_t_sz = sizeof(siginfo_t);
74 unsigned struct_sigaction_sz = sizeof(struct sigaction);
75 unsigned struct_stack_t_sz = sizeof(stack_t);
76 unsigned struct_itimerval_sz = sizeof(struct itimerval);
77 unsigned pthread_t_sz = sizeof(pthread_t);
78 unsigned pthread_mutex_t_sz = sizeof(pthread_mutex_t);
79 unsigned pthread_cond_t_sz = sizeof(pthread_cond_t);
80 unsigned pid_t_sz = sizeof(pid_t);
81 unsigned timeval_sz = sizeof(timeval);
82 unsigned uid_t_sz = sizeof(uid_t);
83 unsigned gid_t_sz = sizeof(gid_t);
84 unsigned mbstate_t_sz = sizeof(mbstate_t);
85 unsigned sigset_t_sz = sizeof(sigset_t);
86 unsigned struct_timezone_sz = sizeof(struct timezone);
87 unsigned struct_tms_sz = sizeof(struct tms);
88 unsigned struct_sched_param_sz = sizeof(struct sched_param);
89 unsigned struct_sockaddr_sz = sizeof(struct sockaddr);
90 unsigned struct_rlimit_sz = sizeof(struct rlimit);
91 unsigned struct_timespec_sz = sizeof(struct timespec);
92 unsigned struct_utimbuf_sz = sizeof(struct utimbuf);
93 unsigned struct_itimerspec_sz = sizeof(struct itimerspec);
94 unsigned struct_msqid_ds_sz = sizeof(struct msqid_ds);
95 unsigned struct_statvfs_sz = sizeof(struct statvfs);
96 
97 const uptr sig_ign = (uptr)SIG_IGN;
98 const uptr sig_dfl = (uptr)SIG_DFL;
99 const uptr sig_err = (uptr)SIG_ERR;
100 const uptr sa_siginfo = (uptr)SA_SIGINFO;
101 
102 int shmctl_ipc_stat = (int)IPC_STAT;
103 
104 unsigned struct_utmp_sz = sizeof(struct utmp);
105 
106 int map_fixed = MAP_FIXED;
107 
108 int af_inet = (int)AF_INET;
109 int af_inet6 = (int)AF_INET6;
110 
111 uptr __sanitizer_in_addr_sz(int af) {
112   if (af == AF_INET)
113     return sizeof(struct in_addr);
114   else if (af == AF_INET6)
115     return sizeof(struct in6_addr);
116   else
117     return 0;
118 }
119 
120 unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
121 
122 int glob_nomatch = GLOB_NOMATCH;
123 int glob_altdirfunc = GLOB_ALTDIRFUNC;
124 
125 unsigned path_max = PATH_MAX;
126 
127 const int si_SEGV_MAPERR = SEGV_MAPERR;
128 const int si_SEGV_ACCERR = SEGV_ACCERR;
129 }  // namespace __sanitizer
130 
131 using namespace __sanitizer;
132 
133 COMPILER_CHECK(sizeof(__sanitizer_pthread_attr_t) >= sizeof(pthread_attr_t));
134 
135 COMPILER_CHECK(sizeof(socklen_t) == sizeof(unsigned));
136 CHECK_TYPE_SIZE(pthread_key_t);
137 
138 CHECK_TYPE_SIZE(dl_phdr_info);
139 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_addr);
140 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_name);
141 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phdr);
142 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phnum);
143 
144 CHECK_TYPE_SIZE(glob_t);
145 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathc);
146 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathv);
147 CHECK_SIZE_AND_OFFSET(glob_t, gl_offs);
148 CHECK_SIZE_AND_OFFSET(glob_t, gl_flags);
149 CHECK_SIZE_AND_OFFSET(glob_t, gl_closedir);
150 CHECK_SIZE_AND_OFFSET(glob_t, gl_readdir);
151 CHECK_SIZE_AND_OFFSET(glob_t, gl_opendir);
152 CHECK_SIZE_AND_OFFSET(glob_t, gl_lstat);
153 CHECK_SIZE_AND_OFFSET(glob_t, gl_stat);
154 
155 CHECK_TYPE_SIZE(addrinfo);
156 CHECK_SIZE_AND_OFFSET(addrinfo, ai_flags);
157 CHECK_SIZE_AND_OFFSET(addrinfo, ai_family);
158 CHECK_SIZE_AND_OFFSET(addrinfo, ai_socktype);
159 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
160 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addrlen);
161 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addr);
162 CHECK_SIZE_AND_OFFSET(addrinfo, ai_canonname);
163 CHECK_SIZE_AND_OFFSET(addrinfo, ai_next);
164 
165 CHECK_TYPE_SIZE(hostent);
166 CHECK_SIZE_AND_OFFSET(hostent, h_name);
167 CHECK_SIZE_AND_OFFSET(hostent, h_aliases);
168 CHECK_SIZE_AND_OFFSET(hostent, h_addrtype);
169 CHECK_SIZE_AND_OFFSET(hostent, h_length);
170 CHECK_SIZE_AND_OFFSET(hostent, h_addr_list);
171 
172 CHECK_TYPE_SIZE(iovec);
173 CHECK_SIZE_AND_OFFSET(iovec, iov_base);
174 CHECK_SIZE_AND_OFFSET(iovec, iov_len);
175 
176 CHECK_TYPE_SIZE(msghdr);
177 CHECK_SIZE_AND_OFFSET(msghdr, msg_name);
178 CHECK_SIZE_AND_OFFSET(msghdr, msg_namelen);
179 CHECK_SIZE_AND_OFFSET(msghdr, msg_iov);
180 CHECK_SIZE_AND_OFFSET(msghdr, msg_iovlen);
181 CHECK_SIZE_AND_OFFSET(msghdr, msg_control);
182 CHECK_SIZE_AND_OFFSET(msghdr, msg_controllen);
183 CHECK_SIZE_AND_OFFSET(msghdr, msg_flags);
184 
185 CHECK_TYPE_SIZE(cmsghdr);
186 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_len);
187 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_level);
188 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_type);
189 
190 COMPILER_CHECK(sizeof(__sanitizer_dirent) <= sizeof(dirent));
191 CHECK_SIZE_AND_OFFSET(dirent, d_fileno);
192 CHECK_SIZE_AND_OFFSET(dirent, d_off);
193 CHECK_SIZE_AND_OFFSET(dirent, d_reclen);
194 
195 CHECK_TYPE_SIZE(ifconf);
196 CHECK_SIZE_AND_OFFSET(ifconf, ifc_len);
197 CHECK_SIZE_AND_OFFSET(ifconf, ifc_ifcu);
198 
199 CHECK_TYPE_SIZE(pollfd);
200 CHECK_SIZE_AND_OFFSET(pollfd, fd);
201 CHECK_SIZE_AND_OFFSET(pollfd, events);
202 CHECK_SIZE_AND_OFFSET(pollfd, revents);
203 
204 CHECK_TYPE_SIZE(nfds_t);
205 
206 CHECK_TYPE_SIZE(sigset_t);
207 
208 COMPILER_CHECK(sizeof(__sanitizer_sigaction) == sizeof(struct sigaction));
209 // Can't write checks for sa_handler and sa_sigaction due to them being
210 // preprocessor macros.
211 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_mask);
212 
213 CHECK_TYPE_SIZE(tm);
214 CHECK_SIZE_AND_OFFSET(tm, tm_sec);
215 CHECK_SIZE_AND_OFFSET(tm, tm_min);
216 CHECK_SIZE_AND_OFFSET(tm, tm_hour);
217 CHECK_SIZE_AND_OFFSET(tm, tm_mday);
218 CHECK_SIZE_AND_OFFSET(tm, tm_mon);
219 CHECK_SIZE_AND_OFFSET(tm, tm_year);
220 CHECK_SIZE_AND_OFFSET(tm, tm_wday);
221 CHECK_SIZE_AND_OFFSET(tm, tm_yday);
222 CHECK_SIZE_AND_OFFSET(tm, tm_isdst);
223 CHECK_SIZE_AND_OFFSET(tm, tm_gmtoff);
224 CHECK_SIZE_AND_OFFSET(tm, tm_zone);
225 
226 CHECK_TYPE_SIZE(ipc_perm);
227 CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
228 CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
229 CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
230 CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
231 CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
232 CHECK_SIZE_AND_OFFSET(ipc_perm, seq);
233 CHECK_SIZE_AND_OFFSET(ipc_perm, key);
234 
235 CHECK_TYPE_SIZE(shmid_ds);
236 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_perm);
237 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_segsz);
238 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_atime);
239 CHECK_SIZE_AND_OFFSET(shmid_ds, __shm_atimensec);
240 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_dtime);
241 CHECK_SIZE_AND_OFFSET(shmid_ds, __shm_dtimensec);
242 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_ctime);
243 CHECK_SIZE_AND_OFFSET(shmid_ds, __shm_ctimensec);
244 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_cpid);
245 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_lpid);
246 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_nattch);
247 
248 CHECK_TYPE_SIZE(clock_t);
249 
250 CHECK_TYPE_SIZE(ifaddrs);
251 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_next);
252 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_name);
253 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_addr);
254 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_netmask);
255 // Compare against the union, because we can't reach into the union in a
256 // compliant way.
257 #ifdef ifa_dstaddr
258 #undef ifa_dstaddr
259 #endif
260 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
261 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_data);
262 
263 CHECK_TYPE_SIZE(passwd);
264 CHECK_SIZE_AND_OFFSET(passwd, pw_name);
265 CHECK_SIZE_AND_OFFSET(passwd, pw_passwd);
266 CHECK_SIZE_AND_OFFSET(passwd, pw_uid);
267 CHECK_SIZE_AND_OFFSET(passwd, pw_gid);
268 CHECK_SIZE_AND_OFFSET(passwd, pw_dir);
269 CHECK_SIZE_AND_OFFSET(passwd, pw_shell);
270 
271 CHECK_SIZE_AND_OFFSET(passwd, pw_gecos);
272 
273 CHECK_TYPE_SIZE(group);
274 CHECK_SIZE_AND_OFFSET(group, gr_name);
275 CHECK_SIZE_AND_OFFSET(group, gr_passwd);
276 CHECK_SIZE_AND_OFFSET(group, gr_gid);
277 CHECK_SIZE_AND_OFFSET(group, gr_mem);
278 
279 #endif  // SANITIZER_OPENBSD
280