2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1988, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 static const char copyright[] =
34 "@(#) Copyright (c) 1988, 1993\n\
35 The Regents of the University of California. All rights reserved.\n";
40 static char sccsid[] = "@(#)kdump.c 8.1 (Berkeley) 6/6/93";
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD$");
46 #define _WANT_KERNEL_ERRNO
48 #define _WANT_KEVENT32
50 #define _WANT_FREEBSD11_KEVENT
51 #include <sys/param.h>
52 #include <sys/capsicum.h>
53 #include <sys/errno.h>
56 #include <sys/event.h>
57 #include <sys/ktrace.h>
59 #include <sys/ioctl.h>
60 #include <sys/socket.h>
62 #include <sys/sysent.h>
65 #include <sys/queue.h>
70 #include <arpa/inet.h>
71 #include <netinet/in.h>
73 #include <capsicum_helpers.h>
85 #include <sysdecode.h>
92 #include <libcasper.h>
94 #include <casper/cap_grp.h>
95 #include <casper/cap_pwd.h>
98 int fetchprocinfo(struct ktr_header *, u_int *);
99 u_int findabi(struct ktr_header *);
100 int fread_tail(void *, int, int);
101 void dumpheader(struct ktr_header *, u_int);
102 void ktrsyscall(struct ktr_syscall *, u_int);
103 void ktrsysret(struct ktr_sysret *, u_int);
104 void ktrnamei(char *, int);
105 void hexdump(char *, int, int);
106 void visdump(char *, int, int);
107 void ktrgenio(struct ktr_genio *, int);
108 void ktrpsig(struct ktr_psig *);
109 void ktrcsw(struct ktr_csw *);
110 void ktrcsw_old(struct ktr_csw_old *);
111 void ktruser(int, void *);
112 void ktrcaprights(cap_rights_t *);
113 void ktritimerval(struct itimerval *it);
114 void ktrsockaddr(struct sockaddr *);
115 void ktrstat(struct stat *);
116 void ktrstruct(char *, size_t);
117 void ktrcapfail(struct ktr_cap_fail *);
118 void ktrfault(struct ktr_fault *);
119 void ktrfaultend(struct ktr_faultend *);
120 void ktrkevent(struct kevent *);
121 void ktrstructarray(struct ktr_struct_array *, size_t);
124 #define TIMESTAMP_NONE 0x0
125 #define TIMESTAMP_ABSOLUTE 0x1
126 #define TIMESTAMP_ELAPSED 0x2
127 #define TIMESTAMP_RELATIVE 0x4
129 static bool abiflag, decimal, fancy = true, resolv, suppressdata, syscallno,
131 static int timestamp, maxdata;
132 static const char *tracefile = DEF_TRACEFILE;
133 static struct ktr_header ktr_header;
135 #define TIME_FORMAT "%b %e %T %Y"
136 #define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
138 #define print_number64(first,i,n,c) do { \
141 if (quad_align && (((ptrdiff_t)((i) - (first))) & 1) == 1) { \
145 if (quad_slots == 2) \
146 __v = (uint64_t)(uint32_t)(i)[0] | \
147 ((uint64_t)(uint32_t)(i)[1]) << 32; \
149 __v = (uint64_t)*(i); \
151 printf("%c%jd", (c), (intmax_t)__v); \
153 printf("%c%#jx", (c), (uintmax_t)__v); \
159 #define print_number(i,n,c) do { \
161 printf("%c%jd", c, (intmax_t)*i); \
163 printf("%c%#jx", c, (uintmax_t)(u_register_t)*i); \
171 TAILQ_ENTRY(proc_info) info;
176 static TAILQ_HEAD(trace_procs, proc_info) trace_procs;
179 static cap_channel_t *cappwd, *capgrp;
182 cappwdgrp_setup(cap_channel_t **cappwdp, cap_channel_t **capgrpp)
184 cap_channel_t *capcas, *cappwdloc, *capgrploc;
185 const char *cmds[1], *fields[1];
188 if (capcas == NULL) {
189 err(1, "unable to create casper process");
192 cappwdloc = cap_service_open(capcas, "system.pwd");
193 capgrploc = cap_service_open(capcas, "system.grp");
194 /* Casper capability no longer needed. */
196 if (cappwdloc == NULL || capgrploc == NULL) {
197 if (cappwdloc == NULL)
198 warn("unable to open system.pwd service");
199 if (capgrploc == NULL)
200 warn("unable to open system.grp service");
203 /* Limit system.pwd to only getpwuid() function and pw_name field. */
204 cmds[0] = "getpwuid";
205 if (cap_pwd_limit_cmds(cappwdloc, cmds, 1) < 0)
206 err(1, "unable to limit system.pwd service");
207 fields[0] = "pw_name";
208 if (cap_pwd_limit_fields(cappwdloc, fields, 1) < 0)
209 err(1, "unable to limit system.pwd service");
210 /* Limit system.grp to only getgrgid() function and gr_name field. */
211 cmds[0] = "getgrgid";
212 if (cap_grp_limit_cmds(capgrploc, cmds, 1) < 0)
213 err(1, "unable to limit system.grp service");
214 fields[0] = "gr_name";
215 if (cap_grp_limit_fields(capgrploc, fields, 1) < 0)
216 err(1, "unable to limit system.grp service");
218 *cappwdp = cappwdloc;
219 *capgrpp = capgrploc;
222 #endif /* WITH_CASPER */
225 print_integer_arg(const char *(*decoder)(int), int value)
229 str = decoder(value);
234 printf("<invalid=%d>", value);
236 printf("<invalid=%#x>", value);
240 /* Like print_integer_arg but unknown values are treated as valid. */
242 print_integer_arg_valid(const char *(*decoder)(int), int value)
246 str = decoder(value);
253 printf("%#x", value);
258 print_mask_arg_part(bool (*decoder)(FILE *, int, int *), int value, int *rem)
261 printf("%#x<", value);
262 return (decoder(stdout, value, rem));
266 print_mask_arg(bool (*decoder)(FILE *, int, int *), int value)
271 invalid = !print_mask_arg_part(decoder, value, &rem);
274 printf("<invalid>%u", rem);
278 print_mask_arg0(bool (*decoder)(FILE *, int, int *), int value)
287 printf("%#x<", value);
288 invalid = !decoder(stdout, value, &rem);
291 printf("<invalid>%u", rem);
295 decode_fileflags(fflags_t value)
304 printf("%#x<", value);
305 invalid = !sysdecode_fileflags(stdout, value, &rem);
308 printf("<invalid>%u", rem);
312 decode_filemode(int value)
321 printf("%#o<", value);
322 invalid = !sysdecode_filemode(stdout, value, &rem);
325 printf("<invalid>%u", rem);
329 print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), uint32_t value)
334 printf("%#x<", value);
335 invalid = !decoder(stdout, value, &rem);
338 printf("<invalid>%u", rem);
342 print_mask_argul(bool (*decoder)(FILE *, u_long, u_long *), u_long value)
351 printf("%#lx<", value);
352 invalid = !decoder(stdout, value, &rem);
355 printf("<invalid>%lu", rem);
359 main(int argc, char *argv[])
361 int ch, ktrlen, size;
363 int trpoints = ALL_POINTS;
368 setlocale(LC_CTYPE, "");
370 timestamp = TIMESTAMP_NONE;
372 while ((ch = getopt(argc,argv,"f:dElm:np:AHRrSsTt:")) != -1)
387 maxdata = atoi(optarg);
405 timestamp |= TIMESTAMP_ELAPSED;
411 timestamp |= TIMESTAMP_RELATIVE;
414 timestamp |= TIMESTAMP_ABSOLUTE;
417 trpoints = getpoints(optarg);
419 errx(1, "unknown trace point in %s", optarg);
428 m = malloc(size = 1025);
430 errx(1, "%s", strerror(ENOMEM));
431 if (strcmp(tracefile, "-") != 0)
432 if (!freopen(tracefile, "r", stdin))
433 err(1, "%s", tracefile);
435 caph_cache_catpages();
440 if (cappwdgrp_setup(&cappwd, &capgrp) < 0) {
445 if (!resolv || (cappwd != NULL && capgrp != NULL)) {
446 if (caph_enter() < 0)
447 err(1, "unable to enter capability mode");
451 if (caph_enter() < 0)
452 err(1, "unable to enter capability mode");
455 if (caph_limit_stdio() == -1)
456 err(1, "unable to limit stdio");
458 TAILQ_INIT(&trace_procs);
460 while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
461 if (ktr_header.ktr_type & KTR_DROP) {
462 ktr_header.ktr_type &= ~KTR_DROP;
463 if (!drop_logged && threads) {
465 "%6jd %6jd %-8.*s Events dropped.\n",
466 (intmax_t)ktr_header.ktr_pid,
467 ktr_header.ktr_tid > 0 ?
468 (intmax_t)ktr_header.ktr_tid : 0,
469 MAXCOMLEN, ktr_header.ktr_comm);
471 } else if (!drop_logged) {
472 printf("%6jd %-8.*s Events dropped.\n",
473 (intmax_t)ktr_header.ktr_pid, MAXCOMLEN,
474 ktr_header.ktr_comm);
478 if ((ktrlen = ktr_header.ktr_len) < 0)
479 errx(1, "bogus length 0x%x", ktrlen);
481 m = realloc(m, ktrlen+1);
483 errx(1, "%s", strerror(ENOMEM));
486 if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
487 errx(1, "data too short");
488 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
490 if (pid && ktr_header.ktr_pid != pid &&
491 ktr_header.ktr_tid != pid)
493 if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
495 sv_flags = findabi(&ktr_header);
496 dumpheader(&ktr_header, sv_flags);
498 switch (ktr_header.ktr_type) {
500 ktrsyscall((struct ktr_syscall *)m, sv_flags);
503 ktrsysret((struct ktr_sysret *)m, sv_flags);
510 ktrgenio((struct ktr_genio *)m, ktrlen);
513 ktrpsig((struct ktr_psig *)m);
516 if (ktrlen == sizeof(struct ktr_csw_old))
517 ktrcsw_old((struct ktr_csw_old *)m);
519 ktrcsw((struct ktr_csw *)m);
525 ktrstruct(m, ktrlen);
528 ktrcapfail((struct ktr_cap_fail *)m);
531 ktrfault((struct ktr_fault *)m);
534 ktrfaultend((struct ktr_faultend *)m);
536 case KTR_STRUCT_ARRAY:
537 ktrstructarray((struct ktr_struct_array *)m, ktrlen);
550 fread_tail(void *buf, int size, int num)
554 while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
562 fetchprocinfo(struct ktr_header *kth, u_int *flags)
564 struct proc_info *pi;
566 switch (kth->ktr_type) {
568 TAILQ_FOREACH(pi, &trace_procs, info) {
569 if (pi->pid == kth->ktr_pid) {
570 TAILQ_REMOVE(&trace_procs, pi, info);
574 pi = malloc(sizeof(struct proc_info));
576 errx(1, "%s", strerror(ENOMEM));
577 pi->sv_flags = *flags;
578 pi->pid = kth->ktr_pid;
579 TAILQ_INSERT_TAIL(&trace_procs, pi, info);
583 TAILQ_FOREACH(pi, &trace_procs, info) {
584 if (pi->pid == kth->ktr_pid) {
585 TAILQ_REMOVE(&trace_procs, pi, info);
597 findabi(struct ktr_header *kth)
599 struct proc_info *pi;
601 TAILQ_FOREACH(pi, &trace_procs, info) {
602 if (pi->pid == kth->ktr_pid) {
603 return (pi->sv_flags);
610 dumpheader(struct ktr_header *kth, u_int sv_flags)
612 static char unknown[64];
613 static struct timeval prevtime, prevtime_e;
620 switch (kth->ktr_type) {
643 case KTR_STRUCT_ARRAY:
659 sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
664 * The ktr_tid field was previously the ktr_buffer field, which held
665 * the kernel pointer value for the buffer associated with data
666 * following the record header. It now holds a threadid, but only
667 * for trace files after the change. Older trace files still contain
668 * kernel pointers. Detect this and suppress the results by printing
669 * negative tid's as 0.
672 printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid,
673 kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0,
674 MAXCOMLEN, kth->ktr_comm);
676 printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN,
679 if (timestamp & TIMESTAMP_ABSOLUTE) {
680 printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec,
681 kth->ktr_time.tv_usec);
683 if (timestamp & TIMESTAMP_ELAPSED) {
684 if (prevtime_e.tv_sec == 0)
685 prevtime_e = kth->ktr_time;
686 timersub(&kth->ktr_time, &prevtime_e, &temp);
687 printf("%jd.%06ld ", (intmax_t)temp.tv_sec,
690 if (timestamp & TIMESTAMP_RELATIVE) {
691 if (prevtime.tv_sec == 0)
692 prevtime = kth->ktr_time;
693 if (timercmp(&kth->ktr_time, &prevtime, <)) {
694 timersub(&prevtime, &kth->ktr_time, &temp);
697 timersub(&kth->ktr_time, &prevtime, &temp);
700 prevtime = kth->ktr_time;
701 printf("%s%jd.%06ld ", sign, (intmax_t)temp.tv_sec,
707 switch (sv_flags & SV_ABI_MASK) {
714 case SV_ABI_CLOUDABI:
722 if ((sv_flags & SV_LP64) != 0)
724 else if ((sv_flags & SV_ILP32) != 0)
729 printf("%s%s ", abi, arch);
733 #include <sys/syscall.h>
736 ioctlname(unsigned long val)
740 str = sysdecode_ioctlname(val);
749 static enum sysdecode_abi
750 syscallabi(u_int sv_flags)
754 return (SYSDECODE_ABI_FREEBSD);
755 switch (sv_flags & SV_ABI_MASK) {
757 return (SYSDECODE_ABI_FREEBSD);
760 if (sv_flags & SV_ILP32)
761 return (SYSDECODE_ABI_LINUX32);
763 return (SYSDECODE_ABI_LINUX);
764 case SV_ABI_CLOUDABI:
765 return (SYSDECODE_ABI_CLOUDABI64);
767 return (SYSDECODE_ABI_UNKNOWN);
772 syscallname(u_int code, u_int sv_flags)
776 name = sysdecode_syscallname(syscallabi(sv_flags), code);
778 printf("[%d]", code);
782 printf("[%d]", code);
787 print_signal(int signo)
791 signame = sysdecode_signal(signo);
793 printf("%s", signame);
795 printf("SIG %d", signo);
799 ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags)
801 int narg = ktr->ktr_narg;
802 register_t *ip, *first;
804 int quad_align, quad_slots;
806 syscallname(ktr->ktr_code, sv_flags);
807 ip = first = &ktr->ktr_args[0];
812 (sv_flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) {
814 if (sv_flags & SV_ILP32) {
821 switch (ktr->ktr_code) {
840 print_integer_arg_valid(sysdecode_atfd, *ip);
846 switch (ktr->ktr_code) {
848 print_number(ip, narg, c);
858 print_integer_arg(sysdecode_ptrace_request, *ip);
866 print_number(ip, narg, c);
868 print_mask_arg(sysdecode_access_mode, *ip);
874 print_number(ip, narg, c);
876 print_mask_arg(sysdecode_open_flags, ip[0]);
877 if ((ip[0] & O_CREAT) == O_CREAT) {
879 decode_filemode(ip[1]);
885 print_number(ip, narg, c);
886 print_number(ip, narg, c);
888 print_mask_arg0(sysdecode_wait4_options, *ip);
894 print_integer_arg(sysdecode_idtype, *ip);
898 print_number64(first, ip, narg, c);
899 print_number(ip, narg, c);
901 print_mask_arg(sysdecode_wait6_options, *ip);
909 print_number(ip, narg, c);
911 decode_filemode(*ip);
916 print_number(ip, narg, c);
918 decode_filemode(*ip);
923 print_number(ip, narg, c);
924 print_number(ip, narg, c);
926 print_integer_arg(sysdecode_getfsstat_mode, *ip);
931 print_number(ip, narg, c);
932 print_number(ip, narg, c);
934 print_mask_arg(sysdecode_mount_flags, *ip);
939 print_number(ip, narg, c);
941 print_mask_arg(sysdecode_mount_flags, *ip);
947 print_number(ip, narg, c);
948 print_number(ip, narg, c);
950 print_mask_arg0(sysdecode_msg_flags, *ip);
956 print_number(ip, narg, c);
957 print_number(ip, narg, c);
958 print_number(ip, narg, c);
960 print_mask_arg0(sysdecode_msg_flags, *ip);
968 print_number(ip, narg, c);
970 decode_fileflags(*ip);
975 print_number(ip, narg, c);
983 print_mask_arg(sysdecode_reboot_howto, *ip);
989 decode_filemode(*ip);
994 print_number(ip, narg, c);
995 print_number(ip, narg, c);
997 print_mask_arg(sysdecode_msync_flags, *ip);
1001 #ifdef SYS_freebsd6_mmap
1002 case SYS_freebsd6_mmap:
1003 print_number(ip, narg, c);
1004 print_number(ip, narg, c);
1006 print_mask_arg(sysdecode_mmap_prot, *ip);
1010 print_mask_arg(sysdecode_mmap_flags, *ip);
1016 print_number(ip, narg, c);
1017 print_number(ip, narg, c);
1019 print_mask_arg(sysdecode_mmap_prot, *ip);
1023 print_mask_arg(sysdecode_mmap_flags, *ip);
1028 print_number(ip, narg, c);
1029 print_number(ip, narg, c);
1031 print_mask_arg(sysdecode_mmap_prot, *ip);
1036 print_number(ip, narg, c);
1037 print_number(ip, narg, c);
1039 print_integer_arg(sysdecode_madvice, *ip);
1046 print_number(ip, narg, c);
1048 print_integer_arg(sysdecode_pathconf_name, *ip);
1052 case SYS_getpriority:
1053 case SYS_setpriority:
1055 print_integer_arg(sysdecode_prio_which, *ip);
1061 print_number(ip, narg, c);
1063 print_integer_arg(sysdecode_fcntl_cmd, ip[0]);
1064 if (sysdecode_fcntl_arg_p(ip[0])) {
1066 if (ip[0] == F_SETFL)
1068 sysdecode_fcntl_fileflags,
1071 sysdecode_fcntl_arg(stdout,
1082 print_integer_arg(sysdecode_socketdomain,
1087 print_mask_arg(sysdecode_socket_type, *ip);
1090 if (sockdomain == PF_INET ||
1091 sockdomain == PF_INET6) {
1093 print_integer_arg(sysdecode_ipproto,
1101 case SYS_setsockopt:
1102 case SYS_getsockopt: {
1105 print_number(ip, narg, c);
1107 print_integer_arg_valid(sysdecode_sockopt_level,
1109 str = sysdecode_sockopt_name(ip[0], ip[1]);
1119 #ifdef SYS_freebsd6_lseek
1120 case SYS_freebsd6_lseek:
1121 print_number(ip, narg, c);
1122 /* Hidden 'pad' argument, not in lseek(2) */
1123 print_number(ip, narg, c);
1124 print_number64(first, ip, narg, c);
1126 print_integer_arg(sysdecode_whence, *ip);
1132 print_number(ip, narg, c);
1133 print_number64(first, ip, narg, c);
1135 print_integer_arg(sysdecode_whence, *ip);
1140 print_number(ip, narg, c);
1142 print_mask_arg(sysdecode_flock_operation, *ip);
1150 print_number(ip, narg, c);
1152 decode_filemode(*ip);
1157 print_number(ip, narg, c);
1159 print_integer_arg(sysdecode_shutdown_how, *ip);
1163 case SYS_socketpair:
1165 print_integer_arg(sysdecode_socketdomain, *ip);
1169 print_mask_arg(sysdecode_socket_type, *ip);
1177 print_integer_arg(sysdecode_rlimit, *ip);
1184 print_integer_arg(sysdecode_getrusage_who, *ip);
1190 print_number(ip, narg, c);
1192 if (!sysdecode_quotactl_cmd(stdout, *ip)) {
1194 printf("<invalid=%d>", (int)*ip);
1196 printf("<invalid=%#x>",
1205 print_integer_arg(sysdecode_nfssvc_flags, *ip);
1211 case SYS_rtprio_thread:
1213 print_integer_arg(sysdecode_rtprio_function,
1220 print_number(ip, narg, c);
1221 print_number(ip, narg, c);
1223 print_integer_arg(sysdecode_semctl_cmd, *ip);
1228 print_number(ip, narg, c);
1229 print_number(ip, narg, c);
1231 print_mask_arg(sysdecode_semget_flags, *ip);
1236 print_number(ip, narg, c);
1238 print_integer_arg(sysdecode_msgctl_cmd, *ip);
1243 print_number(ip, narg, c);
1244 print_number(ip, narg, c);
1246 print_mask_arg(sysdecode_shmat_flags, *ip);
1251 print_number(ip, narg, c);
1253 print_integer_arg(sysdecode_shmctl_cmd, *ip);
1257 #ifdef SYS_freebsd12_shm_open
1258 case SYS_freebsd12_shm_open:
1259 if (ip[0] == (uintptr_t)SHM_ANON) {
1260 printf("(SHM_ANON");
1263 print_number(ip, narg, c);
1266 print_mask_arg(sysdecode_open_flags, ip[0]);
1268 decode_filemode(ip[1]);
1274 if (ip[0] == (uintptr_t)SHM_ANON) {
1275 printf("(SHM_ANON");
1278 print_number(ip, narg, c);
1281 print_mask_arg(sysdecode_open_flags, ip[0]);
1283 decode_filemode(ip[1]);
1285 print_mask_arg(sysdecode_shmflags, ip[2]);
1290 print_number(ip, narg, c);
1291 print_number(ip, narg, c);
1293 print_integer_arg(sysdecode_minherit_inherit,
1300 print_mask_arg(sysdecode_rfork_flags, *ip);
1305 case SYS_lio_listio:
1307 print_integer_arg(sysdecode_lio_listio_mode,
1315 print_mask_arg(sysdecode_mlockall_flags, *ip);
1319 case SYS_sched_setscheduler:
1320 print_number(ip, narg, c);
1322 print_integer_arg(sysdecode_scheduler_policy,
1327 case SYS_sched_get_priority_max:
1328 case SYS_sched_get_priority_min:
1330 print_integer_arg(sysdecode_scheduler_policy,
1336 print_number(ip, narg, c);
1337 print_number(ip, narg, c);
1338 print_number(ip, narg, c);
1339 print_number(ip, narg, c);
1340 print_number(ip, narg, c);
1341 print_number(ip, narg, c);
1343 print_mask_arg(sysdecode_sendfile_flags, *ip);
1348 print_number(ip, narg, c);
1350 print_integer_arg(sysdecode_kldsym_cmd, *ip);
1354 case SYS_sigprocmask:
1356 print_integer_arg(sysdecode_sigprocmask_how,
1362 case SYS___acl_get_file:
1363 case SYS___acl_set_file:
1364 case SYS___acl_get_fd:
1365 case SYS___acl_set_fd:
1366 case SYS___acl_delete_file:
1367 case SYS___acl_delete_fd:
1368 case SYS___acl_aclcheck_file:
1369 case SYS___acl_aclcheck_fd:
1370 case SYS___acl_get_link:
1371 case SYS___acl_set_link:
1372 case SYS___acl_delete_link:
1373 case SYS___acl_aclcheck_link:
1374 print_number(ip, narg, c);
1376 print_integer_arg(sysdecode_acltype, *ip);
1387 case SYS_extattrctl:
1388 print_number(ip, narg, c);
1390 print_integer_arg(sysdecode_extattrnamespace,
1396 print_number(ip, narg, c);
1397 print_number(ip, narg, c);
1399 print_mask_arg(sysdecode_mount_flags, *ip);
1403 case SYS_thr_create:
1404 print_number(ip, narg, c);
1405 print_number(ip, narg, c);
1407 print_mask_arg(sysdecode_thr_create_flags, *ip);
1412 print_number(ip, narg, c);
1418 case SYS_kldunloadf:
1419 print_number(ip, narg, c);
1421 print_integer_arg(sysdecode_kldunload_flags,
1429 print_number(ip, narg, c);
1431 print_integer_arg_valid(sysdecode_atfd, *ip);
1434 print_number(ip, narg, c);
1436 case SYS_cap_fcntls_limit:
1437 print_number(ip, narg, c);
1442 print_mask_arg32(sysdecode_cap_fcntlrights, arg);
1444 case SYS_posix_fadvise:
1445 print_number(ip, narg, c);
1446 print_number(ip, narg, c);
1447 print_number(ip, narg, c);
1449 print_integer_arg(sysdecode_fadvice, *ip);
1455 print_integer_arg(sysdecode_idtype, *ip);
1459 print_number64(first, ip, narg, c);
1461 print_integer_arg(sysdecode_procctl_cmd, *ip);
1465 case SYS__umtx_op: {
1468 print_number(ip, narg, c);
1470 if (print_mask_arg_part(sysdecode_umtx_op_flags,
1473 print_integer_arg(sysdecode_umtx_op, op);
1476 case UMTX_OP_CV_WAIT:
1481 sysdecode_umtx_cvwait_flags, *ip);
1483 case UMTX_OP_RW_RDLOCK:
1488 sysdecode_umtx_rwlock_flags, *ip);
1497 print_number(ip, narg, c);
1498 print_number64(first, ip, narg, c);
1501 print_number(ip, narg, c);
1502 print_number(ip, narg, c);
1503 print_number(ip, narg, c);
1507 print_number(ip, narg, c);
1508 print_number(ip, narg, c);
1511 print_number(ip, narg, c);
1515 print_integer_arg(sysdecode_sysarch_number, *ip);
1521 switch (ktr->ktr_code) {
1531 print_mask_arg0(sysdecode_atflags, *ip);
1538 print_number(ip, narg, c);
1546 ktrsysret(struct ktr_sysret *ktr, u_int sv_flags)
1548 register_t ret = ktr->ktr_retval;
1549 int error = ktr->ktr_error;
1551 syscallname(ktr->ktr_code, sv_flags);
1556 printf("%ld", (long)ret);
1557 if (ret < 0 || ret > 9)
1558 printf("/%#lx", (unsigned long)ret);
1561 printf("%ld", (long)ret);
1563 printf("%#lx", (unsigned long)ret);
1565 } else if (error == ERESTART)
1567 else if (error == EJUSTRETURN)
1568 printf("JUSTRETURN");
1570 printf("-1 errno %d", sysdecode_freebsd_to_abi_errno(
1571 syscallabi(sv_flags), error));
1573 printf(" %s", strerror(ktr->ktr_error));
1579 ktrnamei(char *cp, int len)
1581 printf("\"%.*s\"\n", len, cp);
1585 hexdump(char *p, int len, int screenwidth)
1593 i = 13; /* base offset */
1594 i += (width / 2) + 1; /* spaces every second byte */
1595 i += (width * 2); /* width of bytes */
1597 i += width; /* each byte */
1599 } while (i < screenwidth);
1602 for (n = 0; n < len; n += width) {
1603 for (i = n; i < n + width; i++) {
1604 if ((i % width) == 0) { /* beginning of line */
1605 printf(" 0x%04x", i);
1611 printf("%02x", p[i] & 0xff);
1616 for (i = n; i < n + width; i++) {
1619 if (p[i] >= ' ' && p[i] <= '~')
1626 if ((i % width) != 0)
1631 visdump(char *dp, int datalen, int screenwidth)
1640 for (;datalen > 0; datalen--, dp++) {
1641 vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1644 * Keep track of printables and
1645 * space chars (like fold(1)).
1657 width = 8 - (col&07);
1662 if (col + width > (screenwidth-2)) {
1677 ktrgenio(struct ktr_genio *ktr, int len)
1679 int datalen = len - sizeof (struct ktr_genio);
1680 char *dp = (char *)ktr + sizeof (struct ktr_genio);
1681 static int screenwidth = 0;
1684 printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
1685 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
1686 datalen == 1 ? "" : "s");
1689 if (screenwidth == 0) {
1692 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
1694 screenwidth = ws.ws_col;
1698 if (maxdata && datalen > maxdata)
1701 for (i = 0, binary = 0; i < datalen && binary == 0; i++) {
1702 if (dp[i] >= 32 && dp[i] < 127)
1704 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9)
1709 hexdump(dp, datalen, screenwidth);
1711 visdump(dp, datalen, screenwidth);
1715 ktrpsig(struct ktr_psig *psig)
1719 print_signal(psig->signo);
1720 if (psig->action == SIG_DFL) {
1723 printf(" caught handler=0x%lx mask=0x%x",
1724 (u_long)psig->action, psig->mask.__bits[0]);
1727 str = sysdecode_sigcode(psig->signo, psig->code);
1731 printf("<invalid=%#x>", psig->code);
1736 ktrcsw_old(struct ktr_csw_old *cs)
1738 printf("%s %s\n", cs->out ? "stop" : "resume",
1739 cs->user ? "user" : "kernel");
1743 ktrcsw(struct ktr_csw *cs)
1745 printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume",
1746 cs->user ? "user" : "kernel", cs->wmesg);
1750 ktruser(int len, void *p)
1754 if (sysdecode_utrace(stdout, p, len)) {
1763 printf(" %d", *cp++);
1765 printf(" %02x", *cp++);
1770 ktrcaprights(cap_rights_t *rightsp)
1773 printf("cap_rights_t ");
1774 sysdecode_cap_rights(stdout, rightsp);
1779 ktrtimeval(struct timeval *tv)
1782 printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec);
1786 ktritimerval(struct itimerval *it)
1789 printf("itimerval { .interval = ");
1790 ktrtimeval(&it->it_interval);
1791 printf(", .value = ");
1792 ktrtimeval(&it->it_value);
1797 ktrsockaddr(struct sockaddr *sa)
1800 TODO: Support additional address families
1801 #include <netsmb/netbios.h>
1802 struct sockaddr_nb *nb;
1808 * note: ktrstruct() has already verified that sa points to a
1809 * buffer at least sizeof(struct sockaddr) bytes long and exactly
1810 * sa->sa_len bytes long.
1812 printf("struct sockaddr { ");
1813 str = sysdecode_sockaddr_family(sa->sa_family);
1817 printf("<invalid=%d>", sa->sa_family);
1820 #define check_sockaddr_len(n) \
1821 if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) { \
1822 printf("invalid"); \
1826 switch(sa->sa_family) {
1828 struct sockaddr_in sa_in;
1830 memset(&sa_in, 0, sizeof(sa_in));
1831 memcpy(&sa_in, sa, sa->sa_len);
1832 check_sockaddr_len(in);
1833 inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr);
1834 printf("%s:%u", addr, ntohs(sa_in.sin_port));
1838 struct sockaddr_in6 sa_in6;
1840 memset(&sa_in6, 0, sizeof(sa_in6));
1841 memcpy(&sa_in6, sa, sa->sa_len);
1842 check_sockaddr_len(in6);
1843 getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6),
1844 addr, sizeof(addr), NULL, 0, NI_NUMERICHOST);
1845 printf("[%s]:%u", addr, htons(sa_in6.sin6_port));
1849 struct sockaddr_un sa_un;
1851 memset(&sa_un, 0, sizeof(sa_un));
1852 memcpy(&sa_un, sa, sa->sa_len);
1853 printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
1857 printf("unknown address family");
1863 ktrstat(struct stat *statp)
1865 char mode[12], timestr[PATH_MAX + 4];
1871 * note: ktrstruct() has already verified that statp points to a
1872 * buffer exactly sizeof(struct stat) bytes long.
1874 printf("struct stat {");
1875 printf("dev=%ju, ino=%ju, ",
1876 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino);
1878 printf("mode=0%jo, ", (uintmax_t)statp->st_mode);
1880 strmode(statp->st_mode, mode);
1881 printf("mode=%s, ", mode);
1883 printf("nlink=%ju, ", (uintmax_t)statp->st_nlink);
1889 pwd = cap_getpwuid(cappwd, statp->st_uid);
1892 pwd = getpwuid(statp->st_uid);
1895 printf("uid=%ju, ", (uintmax_t)statp->st_uid);
1897 printf("uid=\"%s\", ", pwd->pw_name);
1903 grp = cap_getgrgid(capgrp, statp->st_gid);
1906 grp = getgrgid(statp->st_gid);
1909 printf("gid=%ju, ", (uintmax_t)statp->st_gid);
1911 printf("gid=\"%s\", ", grp->gr_name);
1912 printf("rdev=%ju, ", (uintmax_t)statp->st_rdev);
1915 printf("%jd", (intmax_t)statp->st_atim.tv_sec);
1917 tm = localtime(&statp->st_atim.tv_sec);
1918 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1919 printf("\"%s\"", timestr);
1921 if (statp->st_atim.tv_nsec != 0)
1922 printf(".%09ld, ", statp->st_atim.tv_nsec);
1927 printf("%jd", (intmax_t)statp->st_mtim.tv_sec);
1929 tm = localtime(&statp->st_mtim.tv_sec);
1930 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1931 printf("\"%s\"", timestr);
1933 if (statp->st_mtim.tv_nsec != 0)
1934 printf(".%09ld, ", statp->st_mtim.tv_nsec);
1939 printf("%jd", (intmax_t)statp->st_ctim.tv_sec);
1941 tm = localtime(&statp->st_ctim.tv_sec);
1942 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1943 printf("\"%s\"", timestr);
1945 if (statp->st_ctim.tv_nsec != 0)
1946 printf(".%09ld, ", statp->st_ctim.tv_nsec);
1949 printf("birthtime=");
1951 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec);
1953 tm = localtime(&statp->st_birthtim.tv_sec);
1954 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1955 printf("\"%s\"", timestr);
1957 if (statp->st_birthtim.tv_nsec != 0)
1958 printf(".%09ld, ", statp->st_birthtim.tv_nsec);
1961 printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x",
1962 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize,
1963 (intmax_t)statp->st_blocks, statp->st_flags);
1968 ktrstruct(char *buf, size_t buflen)
1971 size_t namelen, datalen;
1973 cap_rights_t rights;
1974 struct itimerval it;
1976 struct sockaddr_storage ss;
1978 for (name = buf, namelen = 0;
1979 namelen < buflen && name[namelen] != '\0';
1982 if (namelen == buflen)
1984 if (name[namelen] != '\0')
1986 data = buf + namelen + 1;
1987 datalen = buflen - namelen - 1;
1991 for (i = 0; i < (int)namelen; ++i)
1992 if (!isalpha(name[i]))
1994 if (strcmp(name, "caprights") == 0) {
1995 if (datalen != sizeof(cap_rights_t))
1997 memcpy(&rights, data, datalen);
1998 ktrcaprights(&rights);
1999 } else if (strcmp(name, "itimerval") == 0) {
2000 if (datalen != sizeof(struct itimerval))
2002 memcpy(&it, data, datalen);
2004 } else if (strcmp(name, "stat") == 0) {
2005 if (datalen != sizeof(struct stat))
2007 memcpy(&sb, data, datalen);
2009 } else if (strcmp(name, "sockaddr") == 0) {
2010 if (datalen > sizeof(ss))
2012 memcpy(&ss, data, datalen);
2013 if (datalen != ss.ss_len)
2015 ktrsockaddr((struct sockaddr *)&ss);
2017 printf("unknown structure\n");
2021 printf("invalid record\n");
2025 ktrcapfail(struct ktr_cap_fail *ktr)
2027 switch (ktr->cap_type) {
2028 case CAPFAIL_NOTCAPABLE:
2029 /* operation on fd with insufficient capabilities */
2030 printf("operation requires ");
2031 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2032 printf(", descriptor holds ");
2033 sysdecode_cap_rights(stdout, &ktr->cap_held);
2035 case CAPFAIL_INCREASE:
2036 /* requested more capabilities than fd already has */
2037 printf("attempt to increase capabilities from ");
2038 sysdecode_cap_rights(stdout, &ktr->cap_held);
2040 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2042 case CAPFAIL_SYSCALL:
2043 /* called restricted syscall */
2044 printf("disallowed system call");
2046 case CAPFAIL_LOOKUP:
2047 /* absolute or AT_FDCWD path, ".." path, etc. */
2048 printf("restricted VFS lookup");
2051 printf("unknown capability failure: ");
2052 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2054 sysdecode_cap_rights(stdout, &ktr->cap_held);
2061 ktrfault(struct ktr_fault *ktr)
2064 printf("0x%jx ", (uintmax_t)ktr->vaddr);
2065 print_mask_arg(sysdecode_vmprot, ktr->type);
2070 ktrfaultend(struct ktr_faultend *ktr)
2074 str = sysdecode_vmresult(ktr->result);
2078 printf("<invalid=%d>", ktr->result);
2083 ktrkevent(struct kevent *kev)
2087 switch (kev->filter) {
2093 case EVFILT_PROCDESC:
2095 printf("%ju", (uintmax_t)kev->ident);
2098 print_signal(kev->ident);
2101 printf("%p", (void *)kev->ident);
2103 printf(", filter=");
2104 print_integer_arg(sysdecode_kevent_filter, kev->filter);
2106 print_mask_arg0(sysdecode_kevent_flags, kev->flags);
2107 printf(", fflags=");
2108 sysdecode_kevent_fflags(stdout, kev->filter, kev->fflags,
2110 printf(", data=%#jx, udata=%p }", (uintmax_t)kev->data, kev->udata);
2114 ktrstructarray(struct ktr_struct_array *ksa, size_t buflen)
2118 size_t namelen, datalen;
2122 buflen -= sizeof(*ksa);
2123 for (name = (char *)(ksa + 1), namelen = 0;
2124 namelen < buflen && name[namelen] != '\0';
2127 if (namelen == buflen)
2129 if (name[namelen] != '\0')
2132 for (i = 0; i < (int)namelen; ++i)
2133 if (!isalnum(name[i]) && name[i] != '_')
2135 data = name + namelen + 1;
2136 datalen = buflen - namelen - 1;
2137 printf("struct %s[] = { ", name);
2139 for (; datalen >= ksa->struct_size;
2140 data += ksa->struct_size, datalen -= ksa->struct_size) {
2145 if (strcmp(name, "kevent") == 0) {
2146 if (ksa->struct_size != sizeof(kev))
2148 memcpy(&kev, data, sizeof(kev));
2150 } else if (strcmp(name, "kevent_freebsd11") == 0) {
2151 struct kevent_freebsd11 kev11;
2153 if (ksa->struct_size != sizeof(kev11))
2155 memcpy(&kev11, data, sizeof(kev11));
2156 memset(&kev, 0, sizeof(kev));
2157 kev.ident = kev11.ident;
2158 kev.filter = kev11.filter;
2159 kev.flags = kev11.flags;
2160 kev.fflags = kev11.fflags;
2161 kev.data = kev11.data;
2162 kev.udata = kev11.udata;
2164 #ifdef _WANT_KEVENT32
2165 } else if (strcmp(name, "kevent32") == 0) {
2166 struct kevent32 kev32;
2168 if (ksa->struct_size != sizeof(kev32))
2170 memcpy(&kev32, data, sizeof(kev32));
2171 memset(&kev, 0, sizeof(kev));
2172 kev.ident = kev32.ident;
2173 kev.filter = kev32.filter;
2174 kev.flags = kev32.flags;
2175 kev.fflags = kev32.fflags;
2176 #if BYTE_ORDER == BIG_ENDIAN
2177 kev.data = kev32.data2 | ((int64_t)kev32.data1 << 32);
2179 kev.data = kev32.data1 | ((int64_t)kev32.data2 << 32);
2181 kev.udata = (void *)(uintptr_t)kev32.udata;
2183 } else if (strcmp(name, "kevent32_freebsd11") == 0) {
2184 struct kevent32_freebsd11 kev32;
2186 if (ksa->struct_size != sizeof(kev32))
2188 memcpy(&kev32, data, sizeof(kev32));
2189 memset(&kev, 0, sizeof(kev));
2190 kev.ident = kev32.ident;
2191 kev.filter = kev32.filter;
2192 kev.flags = kev32.flags;
2193 kev.fflags = kev32.fflags;
2194 kev.data = kev32.data;
2195 kev.udata = (void *)(uintptr_t)kev32.udata;
2199 printf("<unknown structure> }\n");
2206 printf("invalid record\n");
2209 printf("<bad size> }\n");
2216 fprintf(stderr, "usage: kdump [-dEnlHRrSsTA] [-f trfile] "
2217 "[-m maxdata] [-p pid] [-t trstr]\n");