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>
58 #include <sys/ioctl.h>
59 #include <sys/socket.h>
61 #include <sys/sysent.h>
64 #include <sys/queue.h>
69 #include <arpa/inet.h>
70 #include <netinet/in.h>
72 #include <capsicum_helpers.h>
84 #include <sysdecode.h>
91 #include <libcasper.h>
93 #include <casper/cap_grp.h>
94 #include <casper/cap_pwd.h>
97 int fetchprocinfo(struct ktr_header *, u_int *);
98 u_int findabi(struct ktr_header *);
99 int fread_tail(void *, int, int);
100 void dumpheader(struct ktr_header *, u_int);
101 void ktrsyscall(struct ktr_syscall *, u_int);
102 void ktrsysret(struct ktr_sysret *, u_int);
103 void ktrnamei(char *, int);
104 void hexdump(char *, int, int);
105 void visdump(char *, int, int);
106 void ktrgenio(struct ktr_genio *, int);
107 void ktrpsig(struct ktr_psig *);
108 void ktrcsw(struct ktr_csw *);
109 void ktrcsw_old(struct ktr_csw_old *);
110 void ktruser(int, void *);
111 void ktrcaprights(cap_rights_t *);
112 void ktritimerval(struct itimerval *it);
113 void ktrsockaddr(struct sockaddr *);
114 void ktrstat(struct stat *);
115 void ktrstruct(char *, size_t);
116 void ktrcapfail(struct ktr_cap_fail *);
117 void ktrfault(struct ktr_fault *);
118 void ktrfaultend(struct ktr_faultend *);
119 void ktrkevent(struct kevent *);
120 void ktrstructarray(struct ktr_struct_array *, size_t);
123 #define TIMESTAMP_NONE 0x0
124 #define TIMESTAMP_ABSOLUTE 0x1
125 #define TIMESTAMP_ELAPSED 0x2
126 #define TIMESTAMP_RELATIVE 0x4
128 static bool abiflag, decimal, fancy = true, resolv, suppressdata, syscallno,
130 static int timestamp, maxdata;
131 static const char *tracefile = DEF_TRACEFILE;
132 static struct ktr_header ktr_header;
134 #define TIME_FORMAT "%b %e %T %Y"
135 #define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
137 #define print_number64(first,i,n,c) do { \
140 if (quad_align && (((ptrdiff_t)((i) - (first))) & 1) == 1) { \
144 if (quad_slots == 2) \
145 __v = (uint64_t)(uint32_t)(i)[0] | \
146 ((uint64_t)(uint32_t)(i)[1]) << 32; \
148 __v = (uint64_t)*(i); \
150 printf("%c%jd", (c), (intmax_t)__v); \
152 printf("%c%#jx", (c), (uintmax_t)__v); \
158 #define print_number(i,n,c) do { \
160 printf("%c%jd", c, (intmax_t)*i); \
162 printf("%c%#jx", c, (uintmax_t)(u_register_t)*i); \
170 TAILQ_ENTRY(proc_info) info;
175 static TAILQ_HEAD(trace_procs, proc_info) trace_procs;
178 static cap_channel_t *cappwd, *capgrp;
181 cappwdgrp_setup(cap_channel_t **cappwdp, cap_channel_t **capgrpp)
183 cap_channel_t *capcas, *cappwdloc, *capgrploc;
184 const char *cmds[1], *fields[1];
187 if (capcas == NULL) {
188 err(1, "unable to create casper process");
191 cappwdloc = cap_service_open(capcas, "system.pwd");
192 capgrploc = cap_service_open(capcas, "system.grp");
193 /* Casper capability no longer needed. */
195 if (cappwdloc == NULL || capgrploc == NULL) {
196 if (cappwdloc == NULL)
197 warn("unable to open system.pwd service");
198 if (capgrploc == NULL)
199 warn("unable to open system.grp service");
202 /* Limit system.pwd to only getpwuid() function and pw_name field. */
203 cmds[0] = "getpwuid";
204 if (cap_pwd_limit_cmds(cappwdloc, cmds, 1) < 0)
205 err(1, "unable to limit system.pwd service");
206 fields[0] = "pw_name";
207 if (cap_pwd_limit_fields(cappwdloc, fields, 1) < 0)
208 err(1, "unable to limit system.pwd service");
209 /* Limit system.grp to only getgrgid() function and gr_name field. */
210 cmds[0] = "getgrgid";
211 if (cap_grp_limit_cmds(capgrploc, cmds, 1) < 0)
212 err(1, "unable to limit system.grp service");
213 fields[0] = "gr_name";
214 if (cap_grp_limit_fields(capgrploc, fields, 1) < 0)
215 err(1, "unable to limit system.grp service");
217 *cappwdp = cappwdloc;
218 *capgrpp = capgrploc;
221 #endif /* WITH_CASPER */
224 print_integer_arg(const char *(*decoder)(int), int value)
228 str = decoder(value);
233 printf("<invalid=%d>", value);
235 printf("<invalid=%#x>", value);
239 /* Like print_integer_arg but unknown values are treated as valid. */
241 print_integer_arg_valid(const char *(*decoder)(int), int value)
245 str = decoder(value);
252 printf("%#x", value);
257 print_mask_arg(bool (*decoder)(FILE *, int, int *), int value)
262 printf("%#x<", value);
263 invalid = !decoder(stdout, value, &rem);
266 printf("<invalid>%u", rem);
270 print_mask_arg0(bool (*decoder)(FILE *, int, int *), int value)
279 printf("%#x<", value);
280 invalid = !decoder(stdout, value, &rem);
283 printf("<invalid>%u", rem);
287 decode_fileflags(fflags_t value)
296 printf("%#x<", value);
297 invalid = !sysdecode_fileflags(stdout, value, &rem);
300 printf("<invalid>%u", rem);
304 decode_filemode(int value)
313 printf("%#o<", value);
314 invalid = !sysdecode_filemode(stdout, value, &rem);
317 printf("<invalid>%u", rem);
321 print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), uint32_t value)
326 printf("%#x<", value);
327 invalid = !decoder(stdout, value, &rem);
330 printf("<invalid>%u", rem);
334 print_mask_argul(bool (*decoder)(FILE *, u_long, u_long *), u_long value)
343 printf("%#lx<", value);
344 invalid = !decoder(stdout, value, &rem);
347 printf("<invalid>%lu", rem);
351 main(int argc, char *argv[])
353 int ch, ktrlen, size;
355 int trpoints = ALL_POINTS;
360 setlocale(LC_CTYPE, "");
362 timestamp = TIMESTAMP_NONE;
364 while ((ch = getopt(argc,argv,"f:dElm:np:AHRrSsTt:")) != -1)
379 maxdata = atoi(optarg);
397 timestamp |= TIMESTAMP_ELAPSED;
403 timestamp |= TIMESTAMP_RELATIVE;
406 timestamp |= TIMESTAMP_ABSOLUTE;
409 trpoints = getpoints(optarg);
411 errx(1, "unknown trace point in %s", optarg);
420 m = malloc(size = 1025);
422 errx(1, "%s", strerror(ENOMEM));
423 if (strcmp(tracefile, "-") != 0)
424 if (!freopen(tracefile, "r", stdin))
425 err(1, "%s", tracefile);
427 caph_cache_catpages();
432 if (cappwdgrp_setup(&cappwd, &capgrp) < 0) {
437 if (!resolv || (cappwd != NULL && capgrp != NULL)) {
438 if (caph_enter() < 0)
439 err(1, "unable to enter capability mode");
443 if (caph_enter() < 0)
444 err(1, "unable to enter capability mode");
447 if (caph_limit_stdio() == -1)
448 err(1, "unable to limit stdio");
450 TAILQ_INIT(&trace_procs);
452 while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
453 if (ktr_header.ktr_type & KTR_DROP) {
454 ktr_header.ktr_type &= ~KTR_DROP;
455 if (!drop_logged && threads) {
457 "%6jd %6jd %-8.*s Events dropped.\n",
458 (intmax_t)ktr_header.ktr_pid,
459 ktr_header.ktr_tid > 0 ?
460 (intmax_t)ktr_header.ktr_tid : 0,
461 MAXCOMLEN, ktr_header.ktr_comm);
463 } else if (!drop_logged) {
464 printf("%6jd %-8.*s Events dropped.\n",
465 (intmax_t)ktr_header.ktr_pid, MAXCOMLEN,
466 ktr_header.ktr_comm);
470 if ((ktrlen = ktr_header.ktr_len) < 0)
471 errx(1, "bogus length 0x%x", ktrlen);
473 m = realloc(m, ktrlen+1);
475 errx(1, "%s", strerror(ENOMEM));
478 if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
479 errx(1, "data too short");
480 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
482 if (pid && ktr_header.ktr_pid != pid &&
483 ktr_header.ktr_tid != pid)
485 if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
487 sv_flags = findabi(&ktr_header);
488 dumpheader(&ktr_header, sv_flags);
490 switch (ktr_header.ktr_type) {
492 ktrsyscall((struct ktr_syscall *)m, sv_flags);
495 ktrsysret((struct ktr_sysret *)m, sv_flags);
502 ktrgenio((struct ktr_genio *)m, ktrlen);
505 ktrpsig((struct ktr_psig *)m);
508 if (ktrlen == sizeof(struct ktr_csw_old))
509 ktrcsw_old((struct ktr_csw_old *)m);
511 ktrcsw((struct ktr_csw *)m);
517 ktrstruct(m, ktrlen);
520 ktrcapfail((struct ktr_cap_fail *)m);
523 ktrfault((struct ktr_fault *)m);
526 ktrfaultend((struct ktr_faultend *)m);
528 case KTR_STRUCT_ARRAY:
529 ktrstructarray((struct ktr_struct_array *)m, ktrlen);
542 fread_tail(void *buf, int size, int num)
546 while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
554 fetchprocinfo(struct ktr_header *kth, u_int *flags)
556 struct proc_info *pi;
558 switch (kth->ktr_type) {
560 TAILQ_FOREACH(pi, &trace_procs, info) {
561 if (pi->pid == kth->ktr_pid) {
562 TAILQ_REMOVE(&trace_procs, pi, info);
566 pi = malloc(sizeof(struct proc_info));
568 errx(1, "%s", strerror(ENOMEM));
569 pi->sv_flags = *flags;
570 pi->pid = kth->ktr_pid;
571 TAILQ_INSERT_TAIL(&trace_procs, pi, info);
575 TAILQ_FOREACH(pi, &trace_procs, info) {
576 if (pi->pid == kth->ktr_pid) {
577 TAILQ_REMOVE(&trace_procs, pi, info);
589 findabi(struct ktr_header *kth)
591 struct proc_info *pi;
593 TAILQ_FOREACH(pi, &trace_procs, info) {
594 if (pi->pid == kth->ktr_pid) {
595 return (pi->sv_flags);
602 dumpheader(struct ktr_header *kth, u_int sv_flags)
604 static char unknown[64];
605 static struct timeval prevtime, prevtime_e;
612 switch (kth->ktr_type) {
635 case KTR_STRUCT_ARRAY:
651 sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
656 * The ktr_tid field was previously the ktr_buffer field, which held
657 * the kernel pointer value for the buffer associated with data
658 * following the record header. It now holds a threadid, but only
659 * for trace files after the change. Older trace files still contain
660 * kernel pointers. Detect this and suppress the results by printing
661 * negative tid's as 0.
664 printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid,
665 kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0,
666 MAXCOMLEN, kth->ktr_comm);
668 printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN,
671 if (timestamp & TIMESTAMP_ABSOLUTE) {
672 printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec,
673 kth->ktr_time.tv_usec);
675 if (timestamp & TIMESTAMP_ELAPSED) {
676 if (prevtime_e.tv_sec == 0)
677 prevtime_e = kth->ktr_time;
678 timersub(&kth->ktr_time, &prevtime_e, &temp);
679 printf("%jd.%06ld ", (intmax_t)temp.tv_sec,
682 if (timestamp & TIMESTAMP_RELATIVE) {
683 if (prevtime.tv_sec == 0)
684 prevtime = kth->ktr_time;
685 if (timercmp(&kth->ktr_time, &prevtime, <)) {
686 timersub(&prevtime, &kth->ktr_time, &temp);
689 timersub(&kth->ktr_time, &prevtime, &temp);
692 prevtime = kth->ktr_time;
693 printf("%s%jd.%06ld ", sign, (intmax_t)temp.tv_sec,
699 switch (sv_flags & SV_ABI_MASK) {
706 case SV_ABI_CLOUDABI:
714 if ((sv_flags & SV_LP64) != 0)
716 else if ((sv_flags & SV_ILP32) != 0)
721 printf("%s%s ", abi, arch);
725 #include <sys/syscall.h>
728 ioctlname(unsigned long val)
732 str = sysdecode_ioctlname(val);
741 static enum sysdecode_abi
742 syscallabi(u_int sv_flags)
746 return (SYSDECODE_ABI_FREEBSD);
747 switch (sv_flags & SV_ABI_MASK) {
749 return (SYSDECODE_ABI_FREEBSD);
752 if (sv_flags & SV_ILP32)
753 return (SYSDECODE_ABI_LINUX32);
755 return (SYSDECODE_ABI_LINUX);
756 case SV_ABI_CLOUDABI:
757 return (SYSDECODE_ABI_CLOUDABI64);
759 return (SYSDECODE_ABI_UNKNOWN);
764 syscallname(u_int code, u_int sv_flags)
768 name = sysdecode_syscallname(syscallabi(sv_flags), code);
770 printf("[%d]", code);
774 printf("[%d]", code);
779 print_signal(int signo)
783 signame = sysdecode_signal(signo);
785 printf("%s", signame);
787 printf("SIG %d", signo);
791 ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags)
793 int narg = ktr->ktr_narg;
794 register_t *ip, *first;
796 int quad_align, quad_slots;
798 syscallname(ktr->ktr_code, sv_flags);
799 ip = first = &ktr->ktr_args[0];
804 (sv_flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) {
806 if (sv_flags & SV_ILP32) {
813 switch (ktr->ktr_code) {
832 print_integer_arg_valid(sysdecode_atfd, *ip);
838 switch (ktr->ktr_code) {
840 print_number(ip, narg, c);
850 print_integer_arg(sysdecode_ptrace_request, *ip);
858 print_number(ip, narg, c);
860 print_mask_arg(sysdecode_access_mode, *ip);
866 print_number(ip, narg, c);
868 print_mask_arg(sysdecode_open_flags, ip[0]);
869 if ((ip[0] & O_CREAT) == O_CREAT) {
871 decode_filemode(ip[1]);
877 print_number(ip, narg, c);
878 print_number(ip, narg, c);
880 print_mask_arg0(sysdecode_wait4_options, *ip);
886 print_integer_arg(sysdecode_idtype, *ip);
890 print_number64(first, ip, narg, c);
891 print_number(ip, narg, c);
893 print_mask_arg(sysdecode_wait6_options, *ip);
901 print_number(ip, narg, c);
903 decode_filemode(*ip);
908 print_number(ip, narg, c);
910 decode_filemode(*ip);
915 print_number(ip, narg, c);
916 print_number(ip, narg, c);
918 print_integer_arg(sysdecode_getfsstat_mode, *ip);
923 print_number(ip, narg, c);
924 print_number(ip, narg, c);
926 print_mask_arg(sysdecode_mount_flags, *ip);
931 print_number(ip, narg, c);
933 print_mask_arg(sysdecode_mount_flags, *ip);
939 print_number(ip, narg, c);
940 print_number(ip, narg, c);
942 print_mask_arg0(sysdecode_msg_flags, *ip);
948 print_number(ip, narg, c);
949 print_number(ip, narg, c);
950 print_number(ip, narg, c);
952 print_mask_arg0(sysdecode_msg_flags, *ip);
960 print_number(ip, narg, c);
962 decode_fileflags(*ip);
967 print_number(ip, narg, c);
975 print_mask_arg(sysdecode_reboot_howto, *ip);
981 decode_filemode(*ip);
986 print_number(ip, narg, c);
987 print_number(ip, narg, c);
989 print_mask_arg(sysdecode_msync_flags, *ip);
993 #ifdef SYS_freebsd6_mmap
994 case SYS_freebsd6_mmap:
995 print_number(ip, narg, c);
996 print_number(ip, narg, c);
998 print_mask_arg(sysdecode_mmap_prot, *ip);
1002 print_mask_arg(sysdecode_mmap_flags, *ip);
1008 print_number(ip, narg, c);
1009 print_number(ip, narg, c);
1011 print_mask_arg(sysdecode_mmap_prot, *ip);
1015 print_mask_arg(sysdecode_mmap_flags, *ip);
1020 print_number(ip, narg, c);
1021 print_number(ip, narg, c);
1023 print_mask_arg(sysdecode_mmap_prot, *ip);
1028 print_number(ip, narg, c);
1029 print_number(ip, narg, c);
1031 print_integer_arg(sysdecode_madvice, *ip);
1038 print_number(ip, narg, c);
1040 print_integer_arg(sysdecode_pathconf_name, *ip);
1044 case SYS_getpriority:
1045 case SYS_setpriority:
1047 print_integer_arg(sysdecode_prio_which, *ip);
1053 print_number(ip, narg, c);
1055 print_integer_arg(sysdecode_fcntl_cmd, ip[0]);
1056 if (sysdecode_fcntl_arg_p(ip[0])) {
1058 if (ip[0] == F_SETFL)
1060 sysdecode_fcntl_fileflags,
1063 sysdecode_fcntl_arg(stdout,
1074 print_integer_arg(sysdecode_socketdomain,
1079 print_mask_arg(sysdecode_socket_type, *ip);
1082 if (sockdomain == PF_INET ||
1083 sockdomain == PF_INET6) {
1085 print_integer_arg(sysdecode_ipproto,
1093 case SYS_setsockopt:
1094 case SYS_getsockopt: {
1097 print_number(ip, narg, c);
1099 print_integer_arg_valid(sysdecode_sockopt_level,
1101 str = sysdecode_sockopt_name(ip[0], ip[1]);
1111 #ifdef SYS_freebsd6_lseek
1112 case SYS_freebsd6_lseek:
1113 print_number(ip, narg, c);
1114 /* Hidden 'pad' argument, not in lseek(2) */
1115 print_number(ip, narg, c);
1116 print_number64(first, ip, narg, c);
1118 print_integer_arg(sysdecode_whence, *ip);
1124 print_number(ip, narg, c);
1125 print_number64(first, ip, narg, c);
1127 print_integer_arg(sysdecode_whence, *ip);
1132 print_number(ip, narg, c);
1134 print_mask_arg(sysdecode_flock_operation, *ip);
1142 print_number(ip, narg, c);
1144 decode_filemode(*ip);
1149 print_number(ip, narg, c);
1151 print_integer_arg(sysdecode_shutdown_how, *ip);
1155 case SYS_socketpair:
1157 print_integer_arg(sysdecode_socketdomain, *ip);
1161 print_mask_arg(sysdecode_socket_type, *ip);
1169 print_integer_arg(sysdecode_rlimit, *ip);
1176 print_integer_arg(sysdecode_getrusage_who, *ip);
1182 print_number(ip, narg, c);
1184 if (!sysdecode_quotactl_cmd(stdout, *ip)) {
1186 printf("<invalid=%d>", (int)*ip);
1188 printf("<invalid=%#x>",
1197 print_integer_arg(sysdecode_nfssvc_flags, *ip);
1203 case SYS_rtprio_thread:
1205 print_integer_arg(sysdecode_rtprio_function,
1212 print_number(ip, narg, c);
1213 print_number(ip, narg, c);
1215 print_integer_arg(sysdecode_semctl_cmd, *ip);
1220 print_number(ip, narg, c);
1221 print_number(ip, narg, c);
1223 print_mask_arg(sysdecode_semget_flags, *ip);
1228 print_number(ip, narg, c);
1230 print_integer_arg(sysdecode_msgctl_cmd, *ip);
1235 print_number(ip, narg, c);
1236 print_number(ip, narg, c);
1238 print_mask_arg(sysdecode_shmat_flags, *ip);
1243 print_number(ip, narg, c);
1245 print_integer_arg(sysdecode_shmctl_cmd, *ip);
1250 print_number(ip, narg, c);
1252 print_mask_arg(sysdecode_open_flags, ip[0]);
1254 decode_filemode(ip[1]);
1259 print_number(ip, narg, c);
1260 print_number(ip, narg, c);
1262 print_integer_arg(sysdecode_minherit_inherit,
1269 print_mask_arg(sysdecode_rfork_flags, *ip);
1274 case SYS_lio_listio:
1276 print_integer_arg(sysdecode_lio_listio_mode,
1284 print_mask_arg(sysdecode_mlockall_flags, *ip);
1288 case SYS_sched_setscheduler:
1289 print_number(ip, narg, c);
1291 print_integer_arg(sysdecode_scheduler_policy,
1296 case SYS_sched_get_priority_max:
1297 case SYS_sched_get_priority_min:
1299 print_integer_arg(sysdecode_scheduler_policy,
1305 print_number(ip, narg, c);
1306 print_number(ip, narg, c);
1307 print_number(ip, narg, c);
1308 print_number(ip, narg, c);
1309 print_number(ip, narg, c);
1310 print_number(ip, narg, c);
1312 print_mask_arg(sysdecode_sendfile_flags, *ip);
1317 print_number(ip, narg, c);
1319 print_integer_arg(sysdecode_kldsym_cmd, *ip);
1323 case SYS_sigprocmask:
1325 print_integer_arg(sysdecode_sigprocmask_how,
1331 case SYS___acl_get_file:
1332 case SYS___acl_set_file:
1333 case SYS___acl_get_fd:
1334 case SYS___acl_set_fd:
1335 case SYS___acl_delete_file:
1336 case SYS___acl_delete_fd:
1337 case SYS___acl_aclcheck_file:
1338 case SYS___acl_aclcheck_fd:
1339 case SYS___acl_get_link:
1340 case SYS___acl_set_link:
1341 case SYS___acl_delete_link:
1342 case SYS___acl_aclcheck_link:
1343 print_number(ip, narg, c);
1345 print_integer_arg(sysdecode_acltype, *ip);
1356 case SYS_extattrctl:
1357 print_number(ip, narg, c);
1359 print_integer_arg(sysdecode_extattrnamespace,
1365 print_number(ip, narg, c);
1366 print_number(ip, narg, c);
1368 print_mask_arg(sysdecode_mount_flags, *ip);
1372 case SYS_thr_create:
1373 print_number(ip, narg, c);
1374 print_number(ip, narg, c);
1376 print_mask_arg(sysdecode_thr_create_flags, *ip);
1381 print_number(ip, narg, c);
1387 case SYS_kldunloadf:
1388 print_number(ip, narg, c);
1390 print_integer_arg(sysdecode_kldunload_flags,
1398 print_number(ip, narg, c);
1400 print_integer_arg_valid(sysdecode_atfd, *ip);
1403 print_number(ip, narg, c);
1405 case SYS_cap_fcntls_limit:
1406 print_number(ip, narg, c);
1411 print_mask_arg32(sysdecode_cap_fcntlrights, arg);
1413 case SYS_posix_fadvise:
1414 print_number(ip, narg, c);
1415 print_number(ip, narg, c);
1416 print_number(ip, narg, c);
1418 print_integer_arg(sysdecode_fadvice, *ip);
1424 print_integer_arg(sysdecode_idtype, *ip);
1428 print_number64(first, ip, narg, c);
1430 print_integer_arg(sysdecode_procctl_cmd, *ip);
1435 print_number(ip, narg, c);
1437 print_integer_arg(sysdecode_umtx_op, *ip);
1439 case UMTX_OP_CV_WAIT:
1444 sysdecode_umtx_cvwait_flags, *ip);
1446 case UMTX_OP_RW_RDLOCK:
1451 sysdecode_umtx_rwlock_flags, *ip);
1459 print_number(ip, narg, c);
1460 print_number64(first, ip, narg, c);
1463 print_number(ip, narg, c);
1464 print_number(ip, narg, c);
1465 print_number(ip, narg, c);
1469 print_number(ip, narg, c);
1470 print_number(ip, narg, c);
1473 print_number(ip, narg, c);
1477 print_integer_arg(sysdecode_sysarch_number, *ip);
1483 switch (ktr->ktr_code) {
1493 print_mask_arg0(sysdecode_atflags, *ip);
1500 print_number(ip, narg, c);
1508 ktrsysret(struct ktr_sysret *ktr, u_int sv_flags)
1510 register_t ret = ktr->ktr_retval;
1511 int error = ktr->ktr_error;
1513 syscallname(ktr->ktr_code, sv_flags);
1518 printf("%ld", (long)ret);
1519 if (ret < 0 || ret > 9)
1520 printf("/%#lx", (unsigned long)ret);
1523 printf("%ld", (long)ret);
1525 printf("%#lx", (unsigned long)ret);
1527 } else if (error == ERESTART)
1529 else if (error == EJUSTRETURN)
1530 printf("JUSTRETURN");
1532 printf("-1 errno %d", sysdecode_freebsd_to_abi_errno(
1533 syscallabi(sv_flags), error));
1535 printf(" %s", strerror(ktr->ktr_error));
1541 ktrnamei(char *cp, int len)
1543 printf("\"%.*s\"\n", len, cp);
1547 hexdump(char *p, int len, int screenwidth)
1555 i = 13; /* base offset */
1556 i += (width / 2) + 1; /* spaces every second byte */
1557 i += (width * 2); /* width of bytes */
1559 i += width; /* each byte */
1561 } while (i < screenwidth);
1564 for (n = 0; n < len; n += width) {
1565 for (i = n; i < n + width; i++) {
1566 if ((i % width) == 0) { /* beginning of line */
1567 printf(" 0x%04x", i);
1573 printf("%02x", p[i] & 0xff);
1578 for (i = n; i < n + width; i++) {
1581 if (p[i] >= ' ' && p[i] <= '~')
1588 if ((i % width) != 0)
1593 visdump(char *dp, int datalen, int screenwidth)
1602 for (;datalen > 0; datalen--, dp++) {
1603 vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1606 * Keep track of printables and
1607 * space chars (like fold(1)).
1619 width = 8 - (col&07);
1624 if (col + width > (screenwidth-2)) {
1639 ktrgenio(struct ktr_genio *ktr, int len)
1641 int datalen = len - sizeof (struct ktr_genio);
1642 char *dp = (char *)ktr + sizeof (struct ktr_genio);
1643 static int screenwidth = 0;
1646 printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
1647 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
1648 datalen == 1 ? "" : "s");
1651 if (screenwidth == 0) {
1654 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
1656 screenwidth = ws.ws_col;
1660 if (maxdata && datalen > maxdata)
1663 for (i = 0, binary = 0; i < datalen && binary == 0; i++) {
1664 if (dp[i] >= 32 && dp[i] < 127)
1666 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9)
1671 hexdump(dp, datalen, screenwidth);
1673 visdump(dp, datalen, screenwidth);
1677 ktrpsig(struct ktr_psig *psig)
1681 print_signal(psig->signo);
1682 if (psig->action == SIG_DFL) {
1685 printf(" caught handler=0x%lx mask=0x%x",
1686 (u_long)psig->action, psig->mask.__bits[0]);
1689 str = sysdecode_sigcode(psig->signo, psig->code);
1693 printf("<invalid=%#x>", psig->code);
1698 ktrcsw_old(struct ktr_csw_old *cs)
1700 printf("%s %s\n", cs->out ? "stop" : "resume",
1701 cs->user ? "user" : "kernel");
1705 ktrcsw(struct ktr_csw *cs)
1707 printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume",
1708 cs->user ? "user" : "kernel", cs->wmesg);
1712 ktruser(int len, void *p)
1716 if (sysdecode_utrace(stdout, p, len)) {
1725 printf(" %d", *cp++);
1727 printf(" %02x", *cp++);
1732 ktrcaprights(cap_rights_t *rightsp)
1735 printf("cap_rights_t ");
1736 sysdecode_cap_rights(stdout, rightsp);
1741 ktrtimeval(struct timeval *tv)
1744 printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec);
1748 ktritimerval(struct itimerval *it)
1751 printf("itimerval { .interval = ");
1752 ktrtimeval(&it->it_interval);
1753 printf(", .value = ");
1754 ktrtimeval(&it->it_value);
1759 ktrsockaddr(struct sockaddr *sa)
1762 TODO: Support additional address families
1763 #include <netsmb/netbios.h>
1764 struct sockaddr_nb *nb;
1770 * note: ktrstruct() has already verified that sa points to a
1771 * buffer at least sizeof(struct sockaddr) bytes long and exactly
1772 * sa->sa_len bytes long.
1774 printf("struct sockaddr { ");
1775 str = sysdecode_sockaddr_family(sa->sa_family);
1779 printf("<invalid=%d>", sa->sa_family);
1782 #define check_sockaddr_len(n) \
1783 if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) { \
1784 printf("invalid"); \
1788 switch(sa->sa_family) {
1790 struct sockaddr_in sa_in;
1792 memset(&sa_in, 0, sizeof(sa_in));
1793 memcpy(&sa_in, sa, sa->sa_len);
1794 check_sockaddr_len(in);
1795 inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr);
1796 printf("%s:%u", addr, ntohs(sa_in.sin_port));
1800 struct sockaddr_in6 sa_in6;
1802 memset(&sa_in6, 0, sizeof(sa_in6));
1803 memcpy(&sa_in6, sa, sa->sa_len);
1804 check_sockaddr_len(in6);
1805 getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6),
1806 addr, sizeof(addr), NULL, 0, NI_NUMERICHOST);
1807 printf("[%s]:%u", addr, htons(sa_in6.sin6_port));
1811 struct sockaddr_un sa_un;
1813 memset(&sa_un, 0, sizeof(sa_un));
1814 memcpy(&sa_un, sa, sa->sa_len);
1815 printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
1819 printf("unknown address family");
1825 ktrstat(struct stat *statp)
1827 char mode[12], timestr[PATH_MAX + 4];
1833 * note: ktrstruct() has already verified that statp points to a
1834 * buffer exactly sizeof(struct stat) bytes long.
1836 printf("struct stat {");
1837 printf("dev=%ju, ino=%ju, ",
1838 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino);
1840 printf("mode=0%jo, ", (uintmax_t)statp->st_mode);
1842 strmode(statp->st_mode, mode);
1843 printf("mode=%s, ", mode);
1845 printf("nlink=%ju, ", (uintmax_t)statp->st_nlink);
1851 pwd = cap_getpwuid(cappwd, statp->st_uid);
1854 pwd = getpwuid(statp->st_uid);
1857 printf("uid=%ju, ", (uintmax_t)statp->st_uid);
1859 printf("uid=\"%s\", ", pwd->pw_name);
1865 grp = cap_getgrgid(capgrp, statp->st_gid);
1868 grp = getgrgid(statp->st_gid);
1871 printf("gid=%ju, ", (uintmax_t)statp->st_gid);
1873 printf("gid=\"%s\", ", grp->gr_name);
1874 printf("rdev=%ju, ", (uintmax_t)statp->st_rdev);
1877 printf("%jd", (intmax_t)statp->st_atim.tv_sec);
1879 tm = localtime(&statp->st_atim.tv_sec);
1880 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1881 printf("\"%s\"", timestr);
1883 if (statp->st_atim.tv_nsec != 0)
1884 printf(".%09ld, ", statp->st_atim.tv_nsec);
1889 printf("%jd", (intmax_t)statp->st_mtim.tv_sec);
1891 tm = localtime(&statp->st_mtim.tv_sec);
1892 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1893 printf("\"%s\"", timestr);
1895 if (statp->st_mtim.tv_nsec != 0)
1896 printf(".%09ld, ", statp->st_mtim.tv_nsec);
1901 printf("%jd", (intmax_t)statp->st_ctim.tv_sec);
1903 tm = localtime(&statp->st_ctim.tv_sec);
1904 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1905 printf("\"%s\"", timestr);
1907 if (statp->st_ctim.tv_nsec != 0)
1908 printf(".%09ld, ", statp->st_ctim.tv_nsec);
1911 printf("birthtime=");
1913 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec);
1915 tm = localtime(&statp->st_birthtim.tv_sec);
1916 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1917 printf("\"%s\"", timestr);
1919 if (statp->st_birthtim.tv_nsec != 0)
1920 printf(".%09ld, ", statp->st_birthtim.tv_nsec);
1923 printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x",
1924 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize,
1925 (intmax_t)statp->st_blocks, statp->st_flags);
1930 ktrstruct(char *buf, size_t buflen)
1933 size_t namelen, datalen;
1935 cap_rights_t rights;
1936 struct itimerval it;
1938 struct sockaddr_storage ss;
1940 for (name = buf, namelen = 0;
1941 namelen < buflen && name[namelen] != '\0';
1944 if (namelen == buflen)
1946 if (name[namelen] != '\0')
1948 data = buf + namelen + 1;
1949 datalen = buflen - namelen - 1;
1953 for (i = 0; i < (int)namelen; ++i)
1954 if (!isalpha(name[i]))
1956 if (strcmp(name, "caprights") == 0) {
1957 if (datalen != sizeof(cap_rights_t))
1959 memcpy(&rights, data, datalen);
1960 ktrcaprights(&rights);
1961 } else if (strcmp(name, "itimerval") == 0) {
1962 if (datalen != sizeof(struct itimerval))
1964 memcpy(&it, data, datalen);
1966 } else if (strcmp(name, "stat") == 0) {
1967 if (datalen != sizeof(struct stat))
1969 memcpy(&sb, data, datalen);
1971 } else if (strcmp(name, "sockaddr") == 0) {
1972 if (datalen > sizeof(ss))
1974 memcpy(&ss, data, datalen);
1975 if (datalen != ss.ss_len)
1977 ktrsockaddr((struct sockaddr *)&ss);
1979 printf("unknown structure\n");
1983 printf("invalid record\n");
1987 ktrcapfail(struct ktr_cap_fail *ktr)
1989 switch (ktr->cap_type) {
1990 case CAPFAIL_NOTCAPABLE:
1991 /* operation on fd with insufficient capabilities */
1992 printf("operation requires ");
1993 sysdecode_cap_rights(stdout, &ktr->cap_needed);
1994 printf(", descriptor holds ");
1995 sysdecode_cap_rights(stdout, &ktr->cap_held);
1997 case CAPFAIL_INCREASE:
1998 /* requested more capabilities than fd already has */
1999 printf("attempt to increase capabilities from ");
2000 sysdecode_cap_rights(stdout, &ktr->cap_held);
2002 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2004 case CAPFAIL_SYSCALL:
2005 /* called restricted syscall */
2006 printf("disallowed system call");
2008 case CAPFAIL_LOOKUP:
2009 /* used ".." in strict-relative mode */
2010 printf("restricted VFS lookup");
2013 printf("unknown capability failure: ");
2014 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2016 sysdecode_cap_rights(stdout, &ktr->cap_held);
2023 ktrfault(struct ktr_fault *ktr)
2026 printf("0x%jx ", (uintmax_t)ktr->vaddr);
2027 print_mask_arg(sysdecode_vmprot, ktr->type);
2032 ktrfaultend(struct ktr_faultend *ktr)
2036 str = sysdecode_vmresult(ktr->result);
2040 printf("<invalid=%d>", ktr->result);
2045 ktrkevent(struct kevent *kev)
2049 switch (kev->filter) {
2055 case EVFILT_PROCDESC:
2057 printf("%ju", (uintmax_t)kev->ident);
2060 print_signal(kev->ident);
2063 printf("%p", (void *)kev->ident);
2065 printf(", filter=");
2066 print_integer_arg(sysdecode_kevent_filter, kev->filter);
2068 print_mask_arg0(sysdecode_kevent_flags, kev->flags);
2069 printf(", fflags=");
2070 sysdecode_kevent_fflags(stdout, kev->filter, kev->fflags,
2072 printf(", data=%#jx, udata=%p }", (uintmax_t)kev->data, kev->udata);
2076 ktrstructarray(struct ktr_struct_array *ksa, size_t buflen)
2080 size_t namelen, datalen;
2084 buflen -= sizeof(*ksa);
2085 for (name = (char *)(ksa + 1), namelen = 0;
2086 namelen < buflen && name[namelen] != '\0';
2089 if (namelen == buflen)
2091 if (name[namelen] != '\0')
2094 for (i = 0; i < (int)namelen; ++i)
2095 if (!isalnum(name[i]) && name[i] != '_')
2097 data = name + namelen + 1;
2098 datalen = buflen - namelen - 1;
2099 printf("struct %s[] = { ", name);
2101 for (; datalen >= ksa->struct_size;
2102 data += ksa->struct_size, datalen -= ksa->struct_size) {
2107 if (strcmp(name, "kevent") == 0) {
2108 if (ksa->struct_size != sizeof(kev))
2110 memcpy(&kev, data, sizeof(kev));
2112 } else if (strcmp(name, "kevent_freebsd11") == 0) {
2113 struct kevent_freebsd11 kev11;
2115 if (ksa->struct_size != sizeof(kev11))
2117 memcpy(&kev11, data, sizeof(kev11));
2118 memset(&kev, 0, sizeof(kev));
2119 kev.ident = kev11.ident;
2120 kev.filter = kev11.filter;
2121 kev.flags = kev11.flags;
2122 kev.fflags = kev11.fflags;
2123 kev.data = kev11.data;
2124 kev.udata = kev11.udata;
2126 #ifdef _WANT_KEVENT32
2127 } else if (strcmp(name, "kevent32") == 0) {
2128 struct kevent32 kev32;
2130 if (ksa->struct_size != sizeof(kev32))
2132 memcpy(&kev32, data, sizeof(kev32));
2133 memset(&kev, 0, sizeof(kev));
2134 kev.ident = kev32.ident;
2135 kev.filter = kev32.filter;
2136 kev.flags = kev32.flags;
2137 kev.fflags = kev32.fflags;
2138 #if BYTE_ORDER == BIG_ENDIAN
2139 kev.data = kev32.data2 | ((int64_t)kev32.data1 << 32);
2141 kev.data = kev32.data1 | ((int64_t)kev32.data2 << 32);
2143 kev.udata = (void *)(uintptr_t)kev32.udata;
2145 } else if (strcmp(name, "kevent32_freebsd11") == 0) {
2146 struct kevent32_freebsd11 kev32;
2148 if (ksa->struct_size != sizeof(kev32))
2150 memcpy(&kev32, data, sizeof(kev32));
2151 memset(&kev, 0, sizeof(kev));
2152 kev.ident = kev32.ident;
2153 kev.filter = kev32.filter;
2154 kev.flags = kev32.flags;
2155 kev.fflags = kev32.fflags;
2156 kev.data = kev32.data;
2157 kev.udata = (void *)(uintptr_t)kev32.udata;
2161 printf("<unknown structure> }\n");
2168 printf("invalid record\n");
2171 printf("<bad size> }\n");
2178 fprintf(stderr, "usage: kdump [-dEnlHRrSsTA] [-f trfile] "
2179 "[-m maxdata] [-p pid] [-t trstr]\n");