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 int timestamp, decimal, fancy = 1, suppressdata, tail, threads, maxdata,
129 resolv = 0, abiflag = 0, syscallno = 0;
130 static const char *tracefile = DEF_TRACEFILE;
131 static struct ktr_header ktr_header;
133 #define TIME_FORMAT "%b %e %T %Y"
134 #define eqs(s1, s2) (strcmp((s1), (s2)) == 0)
136 #define print_number64(first,i,n,c) do { \
139 if (quad_align && (((ptrdiff_t)((i) - (first))) & 1) == 1) { \
143 if (quad_slots == 2) \
144 __v = (uint64_t)(uint32_t)(i)[0] | \
145 ((uint64_t)(uint32_t)(i)[1]) << 32; \
147 __v = (uint64_t)*(i); \
149 printf("%c%jd", (c), (intmax_t)__v); \
151 printf("%c%#jx", (c), (uintmax_t)__v); \
157 #define print_number(i,n,c) do { \
159 printf("%c%jd", c, (intmax_t)*i); \
161 printf("%c%#jx", c, (uintmax_t)(u_register_t)*i); \
169 TAILQ_ENTRY(proc_info) info;
174 static TAILQ_HEAD(trace_procs, proc_info) trace_procs;
177 static cap_channel_t *cappwd, *capgrp;
180 cappwdgrp_setup(cap_channel_t **cappwdp, cap_channel_t **capgrpp)
182 cap_channel_t *capcas, *cappwdloc, *capgrploc;
183 const char *cmds[1], *fields[1];
186 if (capcas == NULL) {
187 err(1, "unable to create casper process");
190 cappwdloc = cap_service_open(capcas, "system.pwd");
191 capgrploc = cap_service_open(capcas, "system.grp");
192 /* Casper capability no longer needed. */
194 if (cappwdloc == NULL || capgrploc == NULL) {
195 if (cappwdloc == NULL)
196 warn("unable to open system.pwd service");
197 if (capgrploc == NULL)
198 warn("unable to open system.grp service");
201 /* Limit system.pwd to only getpwuid() function and pw_name field. */
202 cmds[0] = "getpwuid";
203 if (cap_pwd_limit_cmds(cappwdloc, cmds, 1) < 0)
204 err(1, "unable to limit system.pwd service");
205 fields[0] = "pw_name";
206 if (cap_pwd_limit_fields(cappwdloc, fields, 1) < 0)
207 err(1, "unable to limit system.pwd service");
208 /* Limit system.grp to only getgrgid() function and gr_name field. */
209 cmds[0] = "getgrgid";
210 if (cap_grp_limit_cmds(capgrploc, cmds, 1) < 0)
211 err(1, "unable to limit system.grp service");
212 fields[0] = "gr_name";
213 if (cap_grp_limit_fields(capgrploc, fields, 1) < 0)
214 err(1, "unable to limit system.grp service");
216 *cappwdp = cappwdloc;
217 *capgrpp = capgrploc;
220 #endif /* WITH_CASPER */
223 print_integer_arg(const char *(*decoder)(int), int value)
227 str = decoder(value);
232 printf("<invalid=%d>", value);
234 printf("<invalid=%#x>", value);
238 /* Like print_integer_arg but unknown values are treated as valid. */
240 print_integer_arg_valid(const char *(*decoder)(int), int value)
244 str = decoder(value);
251 printf("%#x", value);
256 print_mask_arg(bool (*decoder)(FILE *, int, int *), int value)
261 printf("%#x<", value);
262 invalid = !decoder(stdout, value, &rem);
265 printf("<invalid>%u", rem);
269 print_mask_arg0(bool (*decoder)(FILE *, int, int *), int value)
278 printf("%#x<", value);
279 invalid = !decoder(stdout, value, &rem);
282 printf("<invalid>%u", rem);
286 decode_fileflags(fflags_t value)
295 printf("%#x<", value);
296 invalid = !sysdecode_fileflags(stdout, value, &rem);
299 printf("<invalid>%u", rem);
303 decode_filemode(int value)
312 printf("%#o<", value);
313 invalid = !sysdecode_filemode(stdout, value, &rem);
316 printf("<invalid>%u", rem);
320 print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), uint32_t value)
325 printf("%#x<", value);
326 invalid = !decoder(stdout, value, &rem);
329 printf("<invalid>%u", rem);
333 print_mask_argul(bool (*decoder)(FILE *, u_long, u_long *), u_long value)
342 printf("%#lx<", value);
343 invalid = !decoder(stdout, value, &rem);
346 printf("<invalid>%lu", rem);
350 main(int argc, char *argv[])
352 int ch, ktrlen, size;
354 int trpoints = ALL_POINTS;
359 setlocale(LC_CTYPE, "");
361 timestamp = TIMESTAMP_NONE;
363 while ((ch = getopt(argc,argv,"f:dElm:np:AHRrSsTt:")) != -1)
378 maxdata = atoi(optarg);
396 timestamp |= TIMESTAMP_ELAPSED;
402 timestamp |= TIMESTAMP_RELATIVE;
405 timestamp |= TIMESTAMP_ABSOLUTE;
408 trpoints = getpoints(optarg);
410 errx(1, "unknown trace point in %s", optarg);
419 m = malloc(size = 1025);
421 errx(1, "%s", strerror(ENOMEM));
422 if (strcmp(tracefile, "-") != 0)
423 if (!freopen(tracefile, "r", stdin))
424 err(1, "%s", tracefile);
426 caph_cache_catpages();
431 if (cappwdgrp_setup(&cappwd, &capgrp) < 0) {
436 if (resolv == 0 || (cappwd != NULL && capgrp != NULL)) {
437 if (caph_enter() < 0)
438 err(1, "unable to enter capability mode");
442 if (caph_enter() < 0)
443 err(1, "unable to enter capability mode");
446 if (caph_limit_stdio() == -1)
447 err(1, "unable to limit stdio");
449 TAILQ_INIT(&trace_procs);
451 while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
452 if (ktr_header.ktr_type & KTR_DROP) {
453 ktr_header.ktr_type &= ~KTR_DROP;
454 if (!drop_logged && threads) {
456 "%6jd %6jd %-8.*s Events dropped.\n",
457 (intmax_t)ktr_header.ktr_pid,
458 ktr_header.ktr_tid > 0 ?
459 (intmax_t)ktr_header.ktr_tid : 0,
460 MAXCOMLEN, ktr_header.ktr_comm);
462 } else if (!drop_logged) {
463 printf("%6jd %-8.*s Events dropped.\n",
464 (intmax_t)ktr_header.ktr_pid, MAXCOMLEN,
465 ktr_header.ktr_comm);
469 if ((ktrlen = ktr_header.ktr_len) < 0)
470 errx(1, "bogus length 0x%x", ktrlen);
472 m = realloc(m, ktrlen+1);
474 errx(1, "%s", strerror(ENOMEM));
477 if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
478 errx(1, "data too short");
479 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
481 if (pid && ktr_header.ktr_pid != pid &&
482 ktr_header.ktr_tid != pid)
484 if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
486 sv_flags = findabi(&ktr_header);
487 dumpheader(&ktr_header, sv_flags);
489 switch (ktr_header.ktr_type) {
491 ktrsyscall((struct ktr_syscall *)m, sv_flags);
494 ktrsysret((struct ktr_sysret *)m, sv_flags);
501 ktrgenio((struct ktr_genio *)m, ktrlen);
504 ktrpsig((struct ktr_psig *)m);
507 if (ktrlen == sizeof(struct ktr_csw_old))
508 ktrcsw_old((struct ktr_csw_old *)m);
510 ktrcsw((struct ktr_csw *)m);
516 ktrstruct(m, ktrlen);
519 ktrcapfail((struct ktr_cap_fail *)m);
522 ktrfault((struct ktr_fault *)m);
525 ktrfaultend((struct ktr_faultend *)m);
527 case KTR_STRUCT_ARRAY:
528 ktrstructarray((struct ktr_struct_array *)m, ktrlen);
541 fread_tail(void *buf, int size, int num)
545 while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
553 fetchprocinfo(struct ktr_header *kth, u_int *flags)
555 struct proc_info *pi;
557 switch (kth->ktr_type) {
559 TAILQ_FOREACH(pi, &trace_procs, info) {
560 if (pi->pid == kth->ktr_pid) {
561 TAILQ_REMOVE(&trace_procs, pi, info);
565 pi = malloc(sizeof(struct proc_info));
567 errx(1, "%s", strerror(ENOMEM));
568 pi->sv_flags = *flags;
569 pi->pid = kth->ktr_pid;
570 TAILQ_INSERT_TAIL(&trace_procs, pi, info);
574 TAILQ_FOREACH(pi, &trace_procs, info) {
575 if (pi->pid == kth->ktr_pid) {
576 TAILQ_REMOVE(&trace_procs, pi, info);
588 findabi(struct ktr_header *kth)
590 struct proc_info *pi;
592 TAILQ_FOREACH(pi, &trace_procs, info) {
593 if (pi->pid == kth->ktr_pid) {
594 return (pi->sv_flags);
601 dumpheader(struct ktr_header *kth, u_int sv_flags)
603 static char unknown[64];
604 static struct timeval prevtime, prevtime_e;
611 switch (kth->ktr_type) {
634 case KTR_STRUCT_ARRAY:
650 sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
655 * The ktr_tid field was previously the ktr_buffer field, which held
656 * the kernel pointer value for the buffer associated with data
657 * following the record header. It now holds a threadid, but only
658 * for trace files after the change. Older trace files still contain
659 * kernel pointers. Detect this and suppress the results by printing
660 * negative tid's as 0.
663 printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid,
664 kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0,
665 MAXCOMLEN, kth->ktr_comm);
667 printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN,
670 if (timestamp & TIMESTAMP_ABSOLUTE) {
671 printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec,
672 kth->ktr_time.tv_usec);
674 if (timestamp & TIMESTAMP_ELAPSED) {
675 if (prevtime_e.tv_sec == 0)
676 prevtime_e = kth->ktr_time;
677 timersub(&kth->ktr_time, &prevtime_e, &temp);
678 printf("%jd.%06ld ", (intmax_t)temp.tv_sec,
681 if (timestamp & TIMESTAMP_RELATIVE) {
682 if (prevtime.tv_sec == 0)
683 prevtime = kth->ktr_time;
684 if (timercmp(&kth->ktr_time, &prevtime, <)) {
685 timersub(&prevtime, &kth->ktr_time, &temp);
688 timersub(&kth->ktr_time, &prevtime, &temp);
691 prevtime = kth->ktr_time;
692 printf("%s%jd.%06ld ", sign, (intmax_t)temp.tv_sec,
698 switch (sv_flags & SV_ABI_MASK) {
705 case SV_ABI_CLOUDABI:
713 if ((sv_flags & SV_LP64) != 0)
715 else if ((sv_flags & SV_ILP32) != 0)
720 printf("%s%s ", abi, arch);
724 #include <sys/syscall.h>
727 ioctlname(unsigned long val)
731 str = sysdecode_ioctlname(val);
740 static enum sysdecode_abi
741 syscallabi(u_int sv_flags)
745 return (SYSDECODE_ABI_FREEBSD);
746 switch (sv_flags & SV_ABI_MASK) {
748 return (SYSDECODE_ABI_FREEBSD);
751 if (sv_flags & SV_ILP32)
752 return (SYSDECODE_ABI_LINUX32);
754 return (SYSDECODE_ABI_LINUX);
755 case SV_ABI_CLOUDABI:
756 return (SYSDECODE_ABI_CLOUDABI64);
758 return (SYSDECODE_ABI_UNKNOWN);
763 syscallname(u_int code, u_int sv_flags)
767 name = sysdecode_syscallname(syscallabi(sv_flags), code);
769 printf("[%d]", code);
773 printf("[%d]", code);
778 print_signal(int signo)
782 signame = sysdecode_signal(signo);
784 printf("%s", signame);
786 printf("SIG %d", signo);
790 ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags)
792 int narg = ktr->ktr_narg;
793 register_t *ip, *first;
795 int quad_align, quad_slots;
797 syscallname(ktr->ktr_code, sv_flags);
798 ip = first = &ktr->ktr_args[0];
803 (sv_flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) {
805 if (sv_flags & SV_ILP32) {
812 switch (ktr->ktr_code) {
831 print_integer_arg_valid(sysdecode_atfd, *ip);
837 switch (ktr->ktr_code) {
839 print_number(ip, narg, c);
849 print_integer_arg(sysdecode_ptrace_request, *ip);
857 print_number(ip, narg, c);
859 print_mask_arg(sysdecode_access_mode, *ip);
865 print_number(ip, narg, c);
867 print_mask_arg(sysdecode_open_flags, ip[0]);
868 if ((ip[0] & O_CREAT) == O_CREAT) {
870 decode_filemode(ip[1]);
876 print_number(ip, narg, c);
877 print_number(ip, narg, c);
879 print_mask_arg0(sysdecode_wait4_options, *ip);
885 print_integer_arg(sysdecode_idtype, *ip);
889 print_number64(first, ip, narg, c);
890 print_number(ip, narg, c);
892 print_mask_arg(sysdecode_wait6_options, *ip);
900 print_number(ip, narg, c);
902 decode_filemode(*ip);
907 print_number(ip, narg, c);
909 decode_filemode(*ip);
914 print_number(ip, narg, c);
915 print_number(ip, narg, c);
917 print_integer_arg(sysdecode_getfsstat_mode, *ip);
922 print_number(ip, narg, c);
923 print_number(ip, narg, c);
925 print_mask_arg(sysdecode_mount_flags, *ip);
930 print_number(ip, narg, c);
932 print_mask_arg(sysdecode_mount_flags, *ip);
938 print_number(ip, narg, c);
939 print_number(ip, narg, c);
941 print_mask_arg0(sysdecode_msg_flags, *ip);
947 print_number(ip, narg, c);
948 print_number(ip, narg, c);
949 print_number(ip, narg, c);
951 print_mask_arg0(sysdecode_msg_flags, *ip);
959 print_number(ip, narg, c);
961 decode_fileflags(*ip);
966 print_number(ip, narg, c);
974 print_mask_arg(sysdecode_reboot_howto, *ip);
980 decode_filemode(*ip);
985 print_number(ip, narg, c);
986 print_number(ip, narg, c);
988 print_mask_arg(sysdecode_msync_flags, *ip);
992 #ifdef SYS_freebsd6_mmap
993 case SYS_freebsd6_mmap:
994 print_number(ip, narg, c);
995 print_number(ip, narg, c);
997 print_mask_arg(sysdecode_mmap_prot, *ip);
1001 print_mask_arg(sysdecode_mmap_flags, *ip);
1007 print_number(ip, narg, c);
1008 print_number(ip, narg, c);
1010 print_mask_arg(sysdecode_mmap_prot, *ip);
1014 print_mask_arg(sysdecode_mmap_flags, *ip);
1019 print_number(ip, narg, c);
1020 print_number(ip, narg, c);
1022 print_mask_arg(sysdecode_mmap_prot, *ip);
1027 print_number(ip, narg, c);
1028 print_number(ip, narg, c);
1030 print_integer_arg(sysdecode_madvice, *ip);
1037 print_number(ip, narg, c);
1039 print_integer_arg(sysdecode_pathconf_name, *ip);
1043 case SYS_getpriority:
1044 case SYS_setpriority:
1046 print_integer_arg(sysdecode_prio_which, *ip);
1052 print_number(ip, narg, c);
1054 print_integer_arg(sysdecode_fcntl_cmd, ip[0]);
1055 if (sysdecode_fcntl_arg_p(ip[0])) {
1057 if (ip[0] == F_SETFL)
1059 sysdecode_fcntl_fileflags,
1062 sysdecode_fcntl_arg(stdout,
1073 print_integer_arg(sysdecode_socketdomain,
1078 print_mask_arg(sysdecode_socket_type, *ip);
1081 if (sockdomain == PF_INET ||
1082 sockdomain == PF_INET6) {
1084 print_integer_arg(sysdecode_ipproto,
1092 case SYS_setsockopt:
1093 case SYS_getsockopt: {
1096 print_number(ip, narg, c);
1098 print_integer_arg_valid(sysdecode_sockopt_level,
1100 str = sysdecode_sockopt_name(ip[0], ip[1]);
1110 #ifdef SYS_freebsd6_lseek
1111 case SYS_freebsd6_lseek:
1112 print_number(ip, narg, c);
1113 /* Hidden 'pad' argument, not in lseek(2) */
1114 print_number(ip, narg, c);
1115 print_number64(first, ip, narg, c);
1117 print_integer_arg(sysdecode_whence, *ip);
1123 print_number(ip, narg, c);
1124 print_number64(first, ip, narg, c);
1126 print_integer_arg(sysdecode_whence, *ip);
1131 print_number(ip, narg, c);
1133 print_mask_arg(sysdecode_flock_operation, *ip);
1141 print_number(ip, narg, c);
1143 decode_filemode(*ip);
1148 print_number(ip, narg, c);
1150 print_integer_arg(sysdecode_shutdown_how, *ip);
1154 case SYS_socketpair:
1156 print_integer_arg(sysdecode_socketdomain, *ip);
1160 print_mask_arg(sysdecode_socket_type, *ip);
1168 print_integer_arg(sysdecode_rlimit, *ip);
1175 print_integer_arg(sysdecode_getrusage_who, *ip);
1181 print_number(ip, narg, c);
1183 if (!sysdecode_quotactl_cmd(stdout, *ip)) {
1185 printf("<invalid=%d>", (int)*ip);
1187 printf("<invalid=%#x>",
1196 print_integer_arg(sysdecode_nfssvc_flags, *ip);
1202 case SYS_rtprio_thread:
1204 print_integer_arg(sysdecode_rtprio_function,
1211 print_number(ip, narg, c);
1212 print_number(ip, narg, c);
1214 print_integer_arg(sysdecode_semctl_cmd, *ip);
1219 print_number(ip, narg, c);
1220 print_number(ip, narg, c);
1222 print_mask_arg(sysdecode_semget_flags, *ip);
1227 print_number(ip, narg, c);
1229 print_integer_arg(sysdecode_msgctl_cmd, *ip);
1234 print_number(ip, narg, c);
1235 print_number(ip, narg, c);
1237 print_mask_arg(sysdecode_shmat_flags, *ip);
1242 print_number(ip, narg, c);
1244 print_integer_arg(sysdecode_shmctl_cmd, *ip);
1249 print_number(ip, narg, c);
1251 print_mask_arg(sysdecode_open_flags, ip[0]);
1253 decode_filemode(ip[1]);
1258 print_number(ip, narg, c);
1259 print_number(ip, narg, c);
1261 print_integer_arg(sysdecode_minherit_inherit,
1268 print_mask_arg(sysdecode_rfork_flags, *ip);
1273 case SYS_lio_listio:
1275 print_integer_arg(sysdecode_lio_listio_mode,
1283 print_mask_arg(sysdecode_mlockall_flags, *ip);
1287 case SYS_sched_setscheduler:
1288 print_number(ip, narg, c);
1290 print_integer_arg(sysdecode_scheduler_policy,
1295 case SYS_sched_get_priority_max:
1296 case SYS_sched_get_priority_min:
1298 print_integer_arg(sysdecode_scheduler_policy,
1304 print_number(ip, narg, c);
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);
1311 print_mask_arg(sysdecode_sendfile_flags, *ip);
1316 print_number(ip, narg, c);
1318 print_integer_arg(sysdecode_kldsym_cmd, *ip);
1322 case SYS_sigprocmask:
1324 print_integer_arg(sysdecode_sigprocmask_how,
1330 case SYS___acl_get_file:
1331 case SYS___acl_set_file:
1332 case SYS___acl_get_fd:
1333 case SYS___acl_set_fd:
1334 case SYS___acl_delete_file:
1335 case SYS___acl_delete_fd:
1336 case SYS___acl_aclcheck_file:
1337 case SYS___acl_aclcheck_fd:
1338 case SYS___acl_get_link:
1339 case SYS___acl_set_link:
1340 case SYS___acl_delete_link:
1341 case SYS___acl_aclcheck_link:
1342 print_number(ip, narg, c);
1344 print_integer_arg(sysdecode_acltype, *ip);
1355 case SYS_extattrctl:
1356 print_number(ip, narg, c);
1358 print_integer_arg(sysdecode_extattrnamespace,
1364 print_number(ip, narg, c);
1365 print_number(ip, narg, c);
1367 print_mask_arg(sysdecode_mount_flags, *ip);
1371 case SYS_thr_create:
1372 print_number(ip, narg, c);
1373 print_number(ip, narg, c);
1375 print_mask_arg(sysdecode_thr_create_flags, *ip);
1380 print_number(ip, narg, c);
1386 case SYS_kldunloadf:
1387 print_number(ip, narg, c);
1389 print_integer_arg(sysdecode_kldunload_flags,
1397 print_number(ip, narg, c);
1399 print_integer_arg_valid(sysdecode_atfd, *ip);
1402 print_number(ip, narg, c);
1404 case SYS_cap_fcntls_limit:
1405 print_number(ip, narg, c);
1410 print_mask_arg32(sysdecode_cap_fcntlrights, arg);
1412 case SYS_posix_fadvise:
1413 print_number(ip, narg, c);
1414 print_number(ip, narg, c);
1415 print_number(ip, narg, c);
1417 print_integer_arg(sysdecode_fadvice, *ip);
1423 print_integer_arg(sysdecode_idtype, *ip);
1427 print_number64(first, ip, narg, c);
1429 print_integer_arg(sysdecode_procctl_cmd, *ip);
1434 print_number(ip, narg, c);
1436 print_integer_arg(sysdecode_umtx_op, *ip);
1438 case UMTX_OP_CV_WAIT:
1443 sysdecode_umtx_cvwait_flags, *ip);
1445 case UMTX_OP_RW_RDLOCK:
1450 sysdecode_umtx_rwlock_flags, *ip);
1458 print_number(ip, narg, c);
1459 print_number64(first, ip, narg, c);
1462 print_number(ip, narg, c);
1463 print_number(ip, narg, c);
1464 print_number(ip, narg, c);
1468 print_number(ip, narg, c);
1469 print_number(ip, narg, c);
1472 print_number(ip, narg, c);
1476 print_integer_arg(sysdecode_sysarch_number, *ip);
1482 switch (ktr->ktr_code) {
1492 print_mask_arg0(sysdecode_atflags, *ip);
1499 print_number(ip, narg, c);
1507 ktrsysret(struct ktr_sysret *ktr, u_int sv_flags)
1509 register_t ret = ktr->ktr_retval;
1510 int error = ktr->ktr_error;
1512 syscallname(ktr->ktr_code, sv_flags);
1517 printf("%ld", (long)ret);
1518 if (ret < 0 || ret > 9)
1519 printf("/%#lx", (unsigned long)ret);
1522 printf("%ld", (long)ret);
1524 printf("%#lx", (unsigned long)ret);
1526 } else if (error == ERESTART)
1528 else if (error == EJUSTRETURN)
1529 printf("JUSTRETURN");
1531 printf("-1 errno %d", sysdecode_freebsd_to_abi_errno(
1532 syscallabi(sv_flags), error));
1534 printf(" %s", strerror(ktr->ktr_error));
1540 ktrnamei(char *cp, int len)
1542 printf("\"%.*s\"\n", len, cp);
1546 hexdump(char *p, int len, int screenwidth)
1554 i = 13; /* base offset */
1555 i += (width / 2) + 1; /* spaces every second byte */
1556 i += (width * 2); /* width of bytes */
1558 i += width; /* each byte */
1560 } while (i < screenwidth);
1563 for (n = 0; n < len; n += width) {
1564 for (i = n; i < n + width; i++) {
1565 if ((i % width) == 0) { /* beginning of line */
1566 printf(" 0x%04x", i);
1572 printf("%02x", p[i] & 0xff);
1577 for (i = n; i < n + width; i++) {
1580 if (p[i] >= ' ' && p[i] <= '~')
1587 if ((i % width) != 0)
1592 visdump(char *dp, int datalen, int screenwidth)
1601 for (;datalen > 0; datalen--, dp++) {
1602 vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1605 * Keep track of printables and
1606 * space chars (like fold(1)).
1618 width = 8 - (col&07);
1623 if (col + width > (screenwidth-2)) {
1638 ktrgenio(struct ktr_genio *ktr, int len)
1640 int datalen = len - sizeof (struct ktr_genio);
1641 char *dp = (char *)ktr + sizeof (struct ktr_genio);
1642 static int screenwidth = 0;
1645 printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
1646 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
1647 datalen == 1 ? "" : "s");
1650 if (screenwidth == 0) {
1653 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
1655 screenwidth = ws.ws_col;
1659 if (maxdata && datalen > maxdata)
1662 for (i = 0, binary = 0; i < datalen && binary == 0; i++) {
1663 if (dp[i] >= 32 && dp[i] < 127)
1665 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9)
1670 hexdump(dp, datalen, screenwidth);
1672 visdump(dp, datalen, screenwidth);
1676 ktrpsig(struct ktr_psig *psig)
1680 print_signal(psig->signo);
1681 if (psig->action == SIG_DFL) {
1684 printf(" caught handler=0x%lx mask=0x%x",
1685 (u_long)psig->action, psig->mask.__bits[0]);
1688 str = sysdecode_sigcode(psig->signo, psig->code);
1692 printf("<invalid=%#x>", psig->code);
1697 ktrcsw_old(struct ktr_csw_old *cs)
1699 printf("%s %s\n", cs->out ? "stop" : "resume",
1700 cs->user ? "user" : "kernel");
1704 ktrcsw(struct ktr_csw *cs)
1706 printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume",
1707 cs->user ? "user" : "kernel", cs->wmesg);
1711 ktruser(int len, void *p)
1715 if (sysdecode_utrace(stdout, p, len)) {
1724 printf(" %d", *cp++);
1726 printf(" %02x", *cp++);
1731 ktrcaprights(cap_rights_t *rightsp)
1734 printf("cap_rights_t ");
1735 sysdecode_cap_rights(stdout, rightsp);
1740 ktrtimeval(struct timeval *tv)
1743 printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec);
1747 ktritimerval(struct itimerval *it)
1750 printf("itimerval { .interval = ");
1751 ktrtimeval(&it->it_interval);
1752 printf(", .value = ");
1753 ktrtimeval(&it->it_value);
1758 ktrsockaddr(struct sockaddr *sa)
1761 TODO: Support additional address families
1762 #include <netsmb/netbios.h>
1763 struct sockaddr_nb *nb;
1769 * note: ktrstruct() has already verified that sa points to a
1770 * buffer at least sizeof(struct sockaddr) bytes long and exactly
1771 * sa->sa_len bytes long.
1773 printf("struct sockaddr { ");
1774 str = sysdecode_sockaddr_family(sa->sa_family);
1778 printf("<invalid=%d>", sa->sa_family);
1781 #define check_sockaddr_len(n) \
1782 if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) { \
1783 printf("invalid"); \
1787 switch(sa->sa_family) {
1789 struct sockaddr_in sa_in;
1791 memset(&sa_in, 0, sizeof(sa_in));
1792 memcpy(&sa_in, sa, sa->sa_len);
1793 check_sockaddr_len(in);
1794 inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr);
1795 printf("%s:%u", addr, ntohs(sa_in.sin_port));
1799 struct sockaddr_in6 sa_in6;
1801 memset(&sa_in6, 0, sizeof(sa_in6));
1802 memcpy(&sa_in6, sa, sa->sa_len);
1803 check_sockaddr_len(in6);
1804 getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6),
1805 addr, sizeof(addr), NULL, 0, NI_NUMERICHOST);
1806 printf("[%s]:%u", addr, htons(sa_in6.sin6_port));
1810 struct sockaddr_un sa_un;
1812 memset(&sa_un, 0, sizeof(sa_un));
1813 memcpy(&sa_un, sa, sa->sa_len);
1814 printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
1818 printf("unknown address family");
1824 ktrstat(struct stat *statp)
1826 char mode[12], timestr[PATH_MAX + 4];
1832 * note: ktrstruct() has already verified that statp points to a
1833 * buffer exactly sizeof(struct stat) bytes long.
1835 printf("struct stat {");
1836 printf("dev=%ju, ino=%ju, ",
1837 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino);
1839 printf("mode=0%jo, ", (uintmax_t)statp->st_mode);
1841 strmode(statp->st_mode, mode);
1842 printf("mode=%s, ", mode);
1844 printf("nlink=%ju, ", (uintmax_t)statp->st_nlink);
1850 pwd = cap_getpwuid(cappwd, statp->st_uid);
1853 pwd = getpwuid(statp->st_uid);
1856 printf("uid=%ju, ", (uintmax_t)statp->st_uid);
1858 printf("uid=\"%s\", ", pwd->pw_name);
1864 grp = cap_getgrgid(capgrp, statp->st_gid);
1867 grp = getgrgid(statp->st_gid);
1870 printf("gid=%ju, ", (uintmax_t)statp->st_gid);
1872 printf("gid=\"%s\", ", grp->gr_name);
1873 printf("rdev=%ju, ", (uintmax_t)statp->st_rdev);
1876 printf("%jd", (intmax_t)statp->st_atim.tv_sec);
1878 tm = localtime(&statp->st_atim.tv_sec);
1879 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1880 printf("\"%s\"", timestr);
1882 if (statp->st_atim.tv_nsec != 0)
1883 printf(".%09ld, ", statp->st_atim.tv_nsec);
1888 printf("%jd", (intmax_t)statp->st_mtim.tv_sec);
1890 tm = localtime(&statp->st_mtim.tv_sec);
1891 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1892 printf("\"%s\"", timestr);
1894 if (statp->st_mtim.tv_nsec != 0)
1895 printf(".%09ld, ", statp->st_mtim.tv_nsec);
1900 printf("%jd", (intmax_t)statp->st_ctim.tv_sec);
1902 tm = localtime(&statp->st_ctim.tv_sec);
1903 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1904 printf("\"%s\"", timestr);
1906 if (statp->st_ctim.tv_nsec != 0)
1907 printf(".%09ld, ", statp->st_ctim.tv_nsec);
1910 printf("birthtime=");
1912 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec);
1914 tm = localtime(&statp->st_birthtim.tv_sec);
1915 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1916 printf("\"%s\"", timestr);
1918 if (statp->st_birthtim.tv_nsec != 0)
1919 printf(".%09ld, ", statp->st_birthtim.tv_nsec);
1922 printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x",
1923 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize,
1924 (intmax_t)statp->st_blocks, statp->st_flags);
1929 ktrstruct(char *buf, size_t buflen)
1932 size_t namelen, datalen;
1934 cap_rights_t rights;
1935 struct itimerval it;
1937 struct sockaddr_storage ss;
1939 for (name = buf, namelen = 0;
1940 namelen < buflen && name[namelen] != '\0';
1943 if (namelen == buflen)
1945 if (name[namelen] != '\0')
1947 data = buf + namelen + 1;
1948 datalen = buflen - namelen - 1;
1952 for (i = 0; i < (int)namelen; ++i)
1953 if (!isalpha(name[i]))
1955 if (strcmp(name, "caprights") == 0) {
1956 if (datalen != sizeof(cap_rights_t))
1958 memcpy(&rights, data, datalen);
1959 ktrcaprights(&rights);
1960 } else if (strcmp(name, "itimerval") == 0) {
1961 if (datalen != sizeof(struct itimerval))
1963 memcpy(&it, data, datalen);
1965 } else if (strcmp(name, "stat") == 0) {
1966 if (datalen != sizeof(struct stat))
1968 memcpy(&sb, data, datalen);
1970 } else if (strcmp(name, "sockaddr") == 0) {
1971 if (datalen > sizeof(ss))
1973 memcpy(&ss, data, datalen);
1974 if (datalen != ss.ss_len)
1976 ktrsockaddr((struct sockaddr *)&ss);
1978 printf("unknown structure\n");
1982 printf("invalid record\n");
1986 ktrcapfail(struct ktr_cap_fail *ktr)
1988 switch (ktr->cap_type) {
1989 case CAPFAIL_NOTCAPABLE:
1990 /* operation on fd with insufficient capabilities */
1991 printf("operation requires ");
1992 sysdecode_cap_rights(stdout, &ktr->cap_needed);
1993 printf(", descriptor holds ");
1994 sysdecode_cap_rights(stdout, &ktr->cap_held);
1996 case CAPFAIL_INCREASE:
1997 /* requested more capabilities than fd already has */
1998 printf("attempt to increase capabilities from ");
1999 sysdecode_cap_rights(stdout, &ktr->cap_held);
2001 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2003 case CAPFAIL_SYSCALL:
2004 /* called restricted syscall */
2005 printf("disallowed system call");
2007 case CAPFAIL_LOOKUP:
2008 /* used ".." in strict-relative mode */
2009 printf("restricted VFS lookup");
2012 printf("unknown capability failure: ");
2013 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2015 sysdecode_cap_rights(stdout, &ktr->cap_held);
2022 ktrfault(struct ktr_fault *ktr)
2025 printf("0x%jx ", (uintmax_t)ktr->vaddr);
2026 print_mask_arg(sysdecode_vmprot, ktr->type);
2031 ktrfaultend(struct ktr_faultend *ktr)
2035 str = sysdecode_vmresult(ktr->result);
2039 printf("<invalid=%d>", ktr->result);
2044 ktrkevent(struct kevent *kev)
2048 switch (kev->filter) {
2054 case EVFILT_PROCDESC:
2056 printf("%ju", (uintmax_t)kev->ident);
2059 print_signal(kev->ident);
2062 printf("%p", (void *)kev->ident);
2064 printf(", filter=");
2065 print_integer_arg(sysdecode_kevent_filter, kev->filter);
2067 print_mask_arg0(sysdecode_kevent_flags, kev->flags);
2068 printf(", fflags=");
2069 sysdecode_kevent_fflags(stdout, kev->filter, kev->fflags,
2071 printf(", data=%#jx, udata=%p }", (uintmax_t)kev->data, kev->udata);
2075 ktrstructarray(struct ktr_struct_array *ksa, size_t buflen)
2079 size_t namelen, datalen;
2083 buflen -= sizeof(*ksa);
2084 for (name = (char *)(ksa + 1), namelen = 0;
2085 namelen < buflen && name[namelen] != '\0';
2088 if (namelen == buflen)
2090 if (name[namelen] != '\0')
2093 for (i = 0; i < (int)namelen; ++i)
2094 if (!isalnum(name[i]) && name[i] != '_')
2096 data = name + namelen + 1;
2097 datalen = buflen - namelen - 1;
2098 printf("struct %s[] = { ", name);
2100 for (; datalen >= ksa->struct_size;
2101 data += ksa->struct_size, datalen -= ksa->struct_size) {
2106 if (strcmp(name, "kevent") == 0) {
2107 if (ksa->struct_size != sizeof(kev))
2109 memcpy(&kev, data, sizeof(kev));
2111 } else if (strcmp(name, "kevent_freebsd11") == 0) {
2112 struct kevent_freebsd11 kev11;
2114 if (ksa->struct_size != sizeof(kev11))
2116 memcpy(&kev11, data, sizeof(kev11));
2117 memset(&kev, 0, sizeof(kev));
2118 kev.ident = kev11.ident;
2119 kev.filter = kev11.filter;
2120 kev.flags = kev11.flags;
2121 kev.fflags = kev11.fflags;
2122 kev.data = kev11.data;
2123 kev.udata = kev11.udata;
2125 #ifdef _WANT_KEVENT32
2126 } else if (strcmp(name, "kevent32") == 0) {
2127 struct kevent32 kev32;
2129 if (ksa->struct_size != sizeof(kev32))
2131 memcpy(&kev32, data, sizeof(kev32));
2132 memset(&kev, 0, sizeof(kev));
2133 kev.ident = kev32.ident;
2134 kev.filter = kev32.filter;
2135 kev.flags = kev32.flags;
2136 kev.fflags = kev32.fflags;
2137 #if BYTE_ORDER == BIG_ENDIAN
2138 kev.data = kev32.data2 | ((int64_t)kev32.data1 << 32);
2140 kev.data = kev32.data1 | ((int64_t)kev32.data2 << 32);
2142 kev.udata = (void *)(uintptr_t)kev32.udata;
2144 } else if (strcmp(name, "kevent32_freebsd11") == 0) {
2145 struct kevent32_freebsd11 kev32;
2147 if (ksa->struct_size != sizeof(kev32))
2149 memcpy(&kev32, data, sizeof(kev32));
2150 memset(&kev, 0, sizeof(kev));
2151 kev.ident = kev32.ident;
2152 kev.filter = kev32.filter;
2153 kev.flags = kev32.flags;
2154 kev.fflags = kev32.fflags;
2155 kev.data = kev32.data;
2156 kev.udata = (void *)(uintptr_t)kev32.udata;
2160 printf("<unknown structure> }\n");
2167 printf("invalid record\n");
2170 printf("<bad size> }\n");
2177 fprintf(stderr, "usage: kdump [-dEnlHRrSsTA] [-f trfile] "
2178 "[-m maxdata] [-p pid] [-t trstr]\n");