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Editing: kdump.c
/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1988, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static const char copyright[] = "@(#) Copyright (c) 1988, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)kdump.c 8.1 (Berkeley) 6/6/93"; #endif #endif /* not lint */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #define _WANT_KERNEL_ERRNO #ifdef __LP64__ #define _WANT_KEVENT32 #endif #define _WANT_FREEBSD11_KEVENT #include <sys/param.h> #include <sys/capsicum.h> #include <sys/errno.h> #include <sys/time.h> #include <sys/uio.h> #include <sys/event.h> #include <sys/ktrace.h> #include <sys/mman.h> #include <sys/ioctl.h> #include <sys/socket.h> #include <sys/stat.h> #include <sys/sysent.h> #include <sys/umtx.h> #include <sys/un.h> #include <sys/queue.h> #include <sys/wait.h> #ifdef WITH_CASPER #include <sys/nv.h> #endif #include <arpa/inet.h> #include <netinet/in.h> #include <ctype.h> #include <capsicum_helpers.h> #include <err.h> #include <grp.h> #include <inttypes.h> #include <locale.h> #include <netdb.h> #include <nl_types.h> #include <pwd.h> #include <stddef.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sysdecode.h> #include <time.h> #include <unistd.h> #include <vis.h> #include "ktrace.h" #ifdef WITH_CASPER #include <libcasper.h> #include <casper/cap_grp.h> #include <casper/cap_pwd.h> #endif int fetchprocinfo(struct ktr_header *, u_int *); u_int findabi(struct ktr_header *); int fread_tail(void *, int, int); void dumpheader(struct ktr_header *, u_int); void ktrsyscall(struct ktr_syscall *, u_int); void ktrsysret(struct ktr_sysret *, u_int); void ktrnamei(char *, int); void hexdump(char *, int, int); void visdump(char *, int, int); void ktrgenio(struct ktr_genio *, int); void ktrpsig(struct ktr_psig *); void ktrcsw(struct ktr_csw *); void ktrcsw_old(struct ktr_csw_old *); void ktruser(int, void *); void ktrcaprights(cap_rights_t *); void ktritimerval(struct itimerval *it); void ktrsockaddr(struct sockaddr *); void ktrstat(struct stat *); void ktrstruct(char *, size_t); void ktrcapfail(struct ktr_cap_fail *); void ktrfault(struct ktr_fault *); void ktrfaultend(struct ktr_faultend *); void ktrkevent(struct kevent *); void ktrstructarray(struct ktr_struct_array *, size_t); void usage(void); #define TIMESTAMP_NONE 0x0 #define TIMESTAMP_ABSOLUTE 0x1 #define TIMESTAMP_ELAPSED 0x2 #define TIMESTAMP_RELATIVE 0x4 static bool abiflag, decimal, fancy = true, resolv, suppressdata, syscallno, tail, threads; static int timestamp, maxdata; static const char *tracefile = DEF_TRACEFILE; static struct ktr_header ktr_header; #define TIME_FORMAT "%b %e %T %Y" #define eqs(s1, s2) (strcmp((s1), (s2)) == 0) #define print_number64(first,i,n,c) do { \ uint64_t __v; \ \ if (quad_align && (((ptrdiff_t)((i) - (first))) & 1) == 1) { \ (i)++; \ (n)--; \ } \ if (quad_slots == 2) \ __v = (uint64_t)(uint32_t)(i)[0] | \ ((uint64_t)(uint32_t)(i)[1]) << 32; \ else \ __v = (uint64_t)*(i); \ if (decimal) \ printf("%c%jd", (c), (intmax_t)__v); \ else \ printf("%c%#jx", (c), (uintmax_t)__v); \ (i) += quad_slots; \ (n) -= quad_slots; \ (c) = ','; \ } while (0) #define print_number(i,n,c) do { \ if (decimal) \ printf("%c%jd", c, (intmax_t)*i); \ else \ printf("%c%#jx", c, (uintmax_t)(u_register_t)*i); \ i++; \ n--; \ c = ','; \ } while (0) struct proc_info { TAILQ_ENTRY(proc_info) info; u_int sv_flags; pid_t pid; }; static TAILQ_HEAD(trace_procs, proc_info) trace_procs; #ifdef WITH_CASPER static cap_channel_t *cappwd, *capgrp; static int cappwdgrp_setup(cap_channel_t **cappwdp, cap_channel_t **capgrpp) { cap_channel_t *capcas, *cappwdloc, *capgrploc; const char *cmds[1], *fields[1]; capcas = cap_init(); if (capcas == NULL) { err(1, "unable to create casper process"); exit(1); } cappwdloc = cap_service_open(capcas, "system.pwd"); capgrploc = cap_service_open(capcas, "system.grp"); /* Casper capability no longer needed. */ cap_close(capcas); if (cappwdloc == NULL || capgrploc == NULL) { if (cappwdloc == NULL) warn("unable to open system.pwd service"); if (capgrploc == NULL) warn("unable to open system.grp service"); exit(1); } /* Limit system.pwd to only getpwuid() function and pw_name field. */ cmds[0] = "getpwuid"; if (cap_pwd_limit_cmds(cappwdloc, cmds, 1) < 0) err(1, "unable to limit system.pwd service"); fields[0] = "pw_name"; if (cap_pwd_limit_fields(cappwdloc, fields, 1) < 0) err(1, "unable to limit system.pwd service"); /* Limit system.grp to only getgrgid() function and gr_name field. */ cmds[0] = "getgrgid"; if (cap_grp_limit_cmds(capgrploc, cmds, 1) < 0) err(1, "unable to limit system.grp service"); fields[0] = "gr_name"; if (cap_grp_limit_fields(capgrploc, fields, 1) < 0) err(1, "unable to limit system.grp service"); *cappwdp = cappwdloc; *capgrpp = capgrploc; return (0); } #endif /* WITH_CASPER */ static void print_integer_arg(const char *(*decoder)(int), int value) { const char *str; str = decoder(value); if (str != NULL) printf("%s", str); else { if (decimal) printf("<invalid=%d>", value); else printf("<invalid=%#x>", value); } } /* Like print_integer_arg but unknown values are treated as valid. */ static void print_integer_arg_valid(const char *(*decoder)(int), int value) { const char *str; str = decoder(value); if (str != NULL) printf("%s", str); else { if (decimal) printf("%d", value); else printf("%#x", value); } } static bool print_mask_arg_part(bool (*decoder)(FILE *, int, int *), int value, int *rem) { printf("%#x<", value); return (decoder(stdout, value, rem)); } static void print_mask_arg(bool (*decoder)(FILE *, int, int *), int value) { bool invalid; int rem; invalid = !print_mask_arg_part(decoder, value, &rem); printf(">"); if (invalid) printf("<invalid>%u", rem); } static void print_mask_arg0(bool (*decoder)(FILE *, int, int *), int value) { bool invalid; int rem; if (value == 0) { printf("0"); return; } printf("%#x<", value); invalid = !decoder(stdout, value, &rem); printf(">"); if (invalid) printf("<invalid>%u", rem); } static void decode_fileflags(fflags_t value) { bool invalid; fflags_t rem; if (value == 0) { printf("0"); return; } printf("%#x<", value); invalid = !sysdecode_fileflags(stdout, value, &rem); printf(">"); if (invalid) printf("<invalid>%u", rem); } static void decode_filemode(int value) { bool invalid; int rem; if (value == 0) { printf("0"); return; } printf("%#o<", value); invalid = !sysdecode_filemode(stdout, value, &rem); printf(">"); if (invalid) printf("<invalid>%u", rem); } static void print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), uint32_t value) { bool invalid; uint32_t rem; printf("%#x<", value); invalid = !decoder(stdout, value, &rem); printf(">"); if (invalid) printf("<invalid>%u", rem); } static void print_mask_argul(bool (*decoder)(FILE *, u_long, u_long *), u_long value) { bool invalid; u_long rem; if (value == 0) { printf("0"); return; } printf("%#lx<", value); invalid = !decoder(stdout, value, &rem); printf(">"); if (invalid) printf("<invalid>%lu", rem); } int main(int argc, char *argv[]) { int ch, ktrlen, size; void *m; int trpoints = ALL_POINTS; int drop_logged; pid_t pid = 0; u_int sv_flags; setlocale(LC_CTYPE, ""); timestamp = TIMESTAMP_NONE; while ((ch = getopt(argc,argv,"f:dElm:np:AHRrSsTt:")) != -1) switch (ch) { case 'A': abiflag = true; break; case 'f': tracefile = optarg; break; case 'd': decimal = true; break; case 'l': tail = true; break; case 'm': maxdata = atoi(optarg); break; case 'n': fancy = false; break; case 'p': pid = atoi(optarg); break; case 'r': resolv = true; break; case 'S': syscallno = true; break; case 's': suppressdata = true; break; case 'E': timestamp |= TIMESTAMP_ELAPSED; break; case 'H': threads = true; break; case 'R': timestamp |= TIMESTAMP_RELATIVE; break; case 'T': timestamp |= TIMESTAMP_ABSOLUTE; break; case 't': trpoints = getpoints(optarg); if (trpoints < 0) errx(1, "unknown trace point in %s", optarg); break; default: usage(); } if (argc > optind) usage(); m = malloc(size = 1025); if (m == NULL) errx(1, "%s", strerror(ENOMEM)); if (strcmp(tracefile, "-") != 0) if (!freopen(tracefile, "r", stdin)) err(1, "%s", tracefile); caph_cache_catpages(); caph_cache_tzdata(); #ifdef WITH_CASPER if (resolv) { if (cappwdgrp_setup(&cappwd, &capgrp) < 0) { cappwd = NULL; capgrp = NULL; } } if (!resolv || (cappwd != NULL && capgrp != NULL)) { if (caph_enter() < 0) err(1, "unable to enter capability mode"); } #else if (!resolv) { if (caph_enter() < 0) err(1, "unable to enter capability mode"); } #endif if (caph_limit_stdio() == -1) err(1, "unable to limit stdio"); TAILQ_INIT(&trace_procs); drop_logged = 0; while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) { if (ktr_header.ktr_type & KTR_DROP) { ktr_header.ktr_type &= ~KTR_DROP; if (!drop_logged && threads) { printf( "%6jd %6jd %-8.*s Events dropped.\n", (intmax_t)ktr_header.ktr_pid, ktr_header.ktr_tid > 0 ? (intmax_t)ktr_header.ktr_tid : 0, MAXCOMLEN, ktr_header.ktr_comm); drop_logged = 1; } else if (!drop_logged) { printf("%6jd %-8.*s Events dropped.\n", (intmax_t)ktr_header.ktr_pid, MAXCOMLEN, ktr_header.ktr_comm); drop_logged = 1; } } if ((ktrlen = ktr_header.ktr_len) < 0) errx(1, "bogus length 0x%x", ktrlen); if (ktrlen > size) { m = realloc(m, ktrlen+1); if (m == NULL) errx(1, "%s", strerror(ENOMEM)); size = ktrlen; } if (ktrlen && fread_tail(m, ktrlen, 1) == 0) errx(1, "data too short"); if (fetchprocinfo(&ktr_header, (u_int *)m) != 0) continue; if (pid && ktr_header.ktr_pid != pid && ktr_header.ktr_tid != pid) continue; if ((trpoints & (1<<ktr_header.ktr_type)) == 0) continue; sv_flags = findabi(&ktr_header); dumpheader(&ktr_header, sv_flags); drop_logged = 0; switch (ktr_header.ktr_type) { case KTR_SYSCALL: ktrsyscall((struct ktr_syscall *)m, sv_flags); break; case KTR_SYSRET: ktrsysret((struct ktr_sysret *)m, sv_flags); break; case KTR_NAMEI: case KTR_SYSCTL: ktrnamei(m, ktrlen); break; case KTR_GENIO: ktrgenio((struct ktr_genio *)m, ktrlen); break; case KTR_PSIG: ktrpsig((struct ktr_psig *)m); break; case KTR_CSW: if (ktrlen == sizeof(struct ktr_csw_old)) ktrcsw_old((struct ktr_csw_old *)m); else ktrcsw((struct ktr_csw *)m); break; case KTR_USER: ktruser(ktrlen, m); break; case KTR_STRUCT: ktrstruct(m, ktrlen); break; case KTR_CAPFAIL: ktrcapfail((struct ktr_cap_fail *)m); break; case KTR_FAULT: ktrfault((struct ktr_fault *)m); break; case KTR_FAULTEND: ktrfaultend((struct ktr_faultend *)m); break; case KTR_STRUCT_ARRAY: ktrstructarray((struct ktr_struct_array *)m, ktrlen); break; default: printf("\n"); break; } if (tail) fflush(stdout); } return 0; } int fread_tail(void *buf, int size, int num) { int i; while ((i = fread(buf, size, num, stdin)) == 0 && tail) { sleep(1); clearerr(stdin); } return (i); } int fetchprocinfo(struct ktr_header *kth, u_int *flags) { struct proc_info *pi; switch (kth->ktr_type) { case KTR_PROCCTOR: TAILQ_FOREACH(pi, &trace_procs, info) { if (pi->pid == kth->ktr_pid) { TAILQ_REMOVE(&trace_procs, pi, info); break; } } pi = malloc(sizeof(struct proc_info)); if (pi == NULL) errx(1, "%s", strerror(ENOMEM)); pi->sv_flags = *flags; pi->pid = kth->ktr_pid; TAILQ_INSERT_TAIL(&trace_procs, pi, info); return (1); case KTR_PROCDTOR: TAILQ_FOREACH(pi, &trace_procs, info) { if (pi->pid == kth->ktr_pid) { TAILQ_REMOVE(&trace_procs, pi, info); free(pi); break; } } return (1); } return (0); } u_int findabi(struct ktr_header *kth) { struct proc_info *pi; TAILQ_FOREACH(pi, &trace_procs, info) { if (pi->pid == kth->ktr_pid) { return (pi->sv_flags); } } return (0); } void dumpheader(struct ktr_header *kth, u_int sv_flags) { static char unknown[64]; static struct timeval prevtime, prevtime_e; struct timeval temp; const char *abi; const char *arch; const char *type; const char *sign; switch (kth->ktr_type) { case KTR_SYSCALL: type = "CALL"; break; case KTR_SYSRET: type = "RET "; break; case KTR_NAMEI: type = "NAMI"; break; case KTR_GENIO: type = "GIO "; break; case KTR_PSIG: type = "PSIG"; break; case KTR_CSW: type = "CSW "; break; case KTR_USER: type = "USER"; break; case KTR_STRUCT: case KTR_STRUCT_ARRAY: type = "STRU"; break; case KTR_SYSCTL: type = "SCTL"; break; case KTR_CAPFAIL: type = "CAP "; break; case KTR_FAULT: type = "PFLT"; break; case KTR_FAULTEND: type = "PRET"; break; default: sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type); type = unknown; } /* * The ktr_tid field was previously the ktr_buffer field, which held * the kernel pointer value for the buffer associated with data * following the record header. It now holds a threadid, but only * for trace files after the change. Older trace files still contain * kernel pointers. Detect this and suppress the results by printing * negative tid's as 0. */ if (threads) printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid, kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0, MAXCOMLEN, kth->ktr_comm); else printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN, kth->ktr_comm); if (timestamp) { if (timestamp & TIMESTAMP_ABSOLUTE) { printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec, kth->ktr_time.tv_usec); } if (timestamp & TIMESTAMP_ELAPSED) { if (prevtime_e.tv_sec == 0) prevtime_e = kth->ktr_time; timersub(&kth->ktr_time, &prevtime_e, &temp); printf("%jd.%06ld ", (intmax_t)temp.tv_sec, temp.tv_usec); } if (timestamp & TIMESTAMP_RELATIVE) { if (prevtime.tv_sec == 0) prevtime = kth->ktr_time; if (timercmp(&kth->ktr_time, &prevtime, <)) { timersub(&prevtime, &kth->ktr_time, &temp); sign = "-"; } else { timersub(&kth->ktr_time, &prevtime, &temp); sign = ""; } prevtime = kth->ktr_time; printf("%s%jd.%06ld ", sign, (intmax_t)temp.tv_sec, temp.tv_usec); } } printf("%s ", type); if (abiflag != 0) { switch (sv_flags & SV_ABI_MASK) { case SV_ABI_LINUX: abi = "L"; break; case SV_ABI_FREEBSD: abi = "F"; break; case SV_ABI_CLOUDABI: abi = "C"; break; default: abi = "U"; break; } if ((sv_flags & SV_LP64) != 0) arch = "64"; else if ((sv_flags & SV_ILP32) != 0) arch = "32"; else arch = "00"; printf("%s%s ", abi, arch); } } #include <sys/syscall.h> static void ioctlname(unsigned long val) { const char *str; str = sysdecode_ioctlname(val); if (str != NULL) printf("%s", str); else if (decimal) printf("%lu", val); else printf("%#lx", val); } static enum sysdecode_abi syscallabi(u_int sv_flags) { if (sv_flags == 0) return (SYSDECODE_ABI_FREEBSD); switch (sv_flags & SV_ABI_MASK) { case SV_ABI_FREEBSD: return (SYSDECODE_ABI_FREEBSD); case SV_ABI_LINUX: #ifdef __LP64__ if (sv_flags & SV_ILP32) return (SYSDECODE_ABI_LINUX32); #endif return (SYSDECODE_ABI_LINUX); case SV_ABI_CLOUDABI: return (SYSDECODE_ABI_CLOUDABI64); default: return (SYSDECODE_ABI_UNKNOWN); } } static void syscallname(u_int code, u_int sv_flags) { const char *name; name = sysdecode_syscallname(syscallabi(sv_flags), code); if (name == NULL) printf("[%d]", code); else { printf("%s", name); if (syscallno) printf("[%d]", code); } } static void print_signal(int signo) { const char *signame; signame = sysdecode_signal(signo); if (signame != NULL) printf("%s", signame); else printf("SIG %d", signo); } void ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags) { int narg = ktr->ktr_narg; register_t *ip, *first; intmax_t arg; int quad_align, quad_slots; syscallname(ktr->ktr_code, sv_flags); ip = first = &ktr->ktr_args[0]; if (narg) { char c = '('; if (fancy && (sv_flags == 0 || (sv_flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) { quad_align = 0; if (sv_flags & SV_ILP32) { #ifdef __powerpc__ quad_align = 1; #endif quad_slots = 2; } else quad_slots = 1; switch (ktr->ktr_code) { case SYS_bindat: case SYS_chflagsat: case SYS_connectat: case SYS_faccessat: case SYS_fchmodat: case SYS_fchownat: case SYS_fstatat: case SYS_futimesat: case SYS_linkat: case SYS_mkdirat: case SYS_mkfifoat: case SYS_mknodat: case SYS_openat: case SYS_readlinkat: case SYS_renameat: case SYS_unlinkat: case SYS_utimensat: putchar('('); print_integer_arg_valid(sysdecode_atfd, *ip); c = ','; ip++; narg--; break; } switch (ktr->ktr_code) { case SYS_ioctl: { print_number(ip, narg, c); putchar(c); ioctlname(*ip); c = ','; ip++; narg--; break; } case SYS_ptrace: putchar('('); print_integer_arg(sysdecode_ptrace_request, *ip); c = ','; ip++; narg--; break; case SYS_access: case SYS_eaccess: case SYS_faccessat: print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_access_mode, *ip); ip++; narg--; break; case SYS_open: case SYS_openat: print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_open_flags, ip[0]); if ((ip[0] & O_CREAT) == O_CREAT) { putchar(','); decode_filemode(ip[1]); } ip += 2; narg -= 2; break; case SYS_wait4: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg0(sysdecode_wait4_options, *ip); ip++; narg--; break; case SYS_wait6: putchar('('); print_integer_arg(sysdecode_idtype, *ip); c = ','; ip++; narg--; print_number64(first, ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_wait6_options, *ip); ip++; narg--; break; case SYS_chmod: case SYS_fchmod: case SYS_lchmod: case SYS_fchmodat: print_number(ip, narg, c); putchar(','); decode_filemode(*ip); ip++; narg--; break; case SYS_mknodat: print_number(ip, narg, c); putchar(','); decode_filemode(*ip); ip++; narg--; break; case SYS_getfsstat: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_getfsstat_mode, *ip); ip++; narg--; break; case SYS_mount: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_mount_flags, *ip); ip++; narg--; break; case SYS_unmount: print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_mount_flags, *ip); ip++; narg--; break; case SYS_recvmsg: case SYS_sendmsg: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg0(sysdecode_msg_flags, *ip); ip++; narg--; break; case SYS_recvfrom: case SYS_sendto: print_number(ip, narg, c); print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg0(sysdecode_msg_flags, *ip); ip++; narg--; break; case SYS_chflags: case SYS_chflagsat: case SYS_fchflags: case SYS_lchflags: print_number(ip, narg, c); putchar(','); decode_fileflags(*ip); ip++; narg--; break; case SYS_kill: print_number(ip, narg, c); putchar(','); print_signal(*ip); ip++; narg--; break; case SYS_reboot: putchar('('); print_mask_arg(sysdecode_reboot_howto, *ip); ip++; narg--; break; case SYS_umask: putchar('('); decode_filemode(*ip); ip++; narg--; break; case SYS_msync: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_msync_flags, *ip); ip++; narg--; break; #ifdef SYS_freebsd6_mmap case SYS_freebsd6_mmap: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_mmap_prot, *ip); putchar(','); ip++; narg--; print_mask_arg(sysdecode_mmap_flags, *ip); ip++; narg--; break; #endif case SYS_mmap: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_mmap_prot, *ip); putchar(','); ip++; narg--; print_mask_arg(sysdecode_mmap_flags, *ip); ip++; narg--; break; case SYS_mprotect: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_mmap_prot, *ip); ip++; narg--; break; case SYS_madvise: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_madvice, *ip); ip++; narg--; break; case SYS_pathconf: case SYS_lpathconf: case SYS_fpathconf: print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_pathconf_name, *ip); ip++; narg--; break; case SYS_getpriority: case SYS_setpriority: putchar('('); print_integer_arg(sysdecode_prio_which, *ip); c = ','; ip++; narg--; break; case SYS_fcntl: print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_fcntl_cmd, ip[0]); if (sysdecode_fcntl_arg_p(ip[0])) { putchar(','); if (ip[0] == F_SETFL) print_mask_arg( sysdecode_fcntl_fileflags, ip[1]); else sysdecode_fcntl_arg(stdout, ip[0], ip[1], decimal ? 10 : 16); } ip += 2; narg -= 2; break; case SYS_socket: { int sockdomain; putchar('('); sockdomain = *ip; print_integer_arg(sysdecode_socketdomain, sockdomain); ip++; narg--; putchar(','); print_mask_arg(sysdecode_socket_type, *ip); ip++; narg--; if (sockdomain == PF_INET || sockdomain == PF_INET6) { putchar(','); print_integer_arg(sysdecode_ipproto, *ip); ip++; narg--; } c = ','; break; } case SYS_setsockopt: case SYS_getsockopt: { const char *str; print_number(ip, narg, c); putchar(','); print_integer_arg_valid(sysdecode_sockopt_level, *ip); str = sysdecode_sockopt_name(ip[0], ip[1]); if (str != NULL) { printf(",%s", str); ip++; narg--; } ip++; narg--; break; } #ifdef SYS_freebsd6_lseek case SYS_freebsd6_lseek: print_number(ip, narg, c); /* Hidden 'pad' argument, not in lseek(2) */ print_number(ip, narg, c); print_number64(first, ip, narg, c); putchar(','); print_integer_arg(sysdecode_whence, *ip); ip++; narg--; break; #endif case SYS_lseek: print_number(ip, narg, c); print_number64(first, ip, narg, c); putchar(','); print_integer_arg(sysdecode_whence, *ip); ip++; narg--; break; case SYS_flock: print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_flock_operation, *ip); ip++; narg--; break; case SYS_mkfifo: case SYS_mkfifoat: case SYS_mkdir: case SYS_mkdirat: print_number(ip, narg, c); putchar(','); decode_filemode(*ip); ip++; narg--; break; case SYS_shutdown: print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_shutdown_how, *ip); ip++; narg--; break; case SYS_socketpair: putchar('('); print_integer_arg(sysdecode_socketdomain, *ip); ip++; narg--; putchar(','); print_mask_arg(sysdecode_socket_type, *ip); ip++; narg--; c = ','; break; case SYS_getrlimit: case SYS_setrlimit: putchar('('); print_integer_arg(sysdecode_rlimit, *ip); ip++; narg--; c = ','; break; case SYS_getrusage: putchar('('); print_integer_arg(sysdecode_getrusage_who, *ip); ip++; narg--; c = ','; break; case SYS_quotactl: print_number(ip, narg, c); putchar(','); if (!sysdecode_quotactl_cmd(stdout, *ip)) { if (decimal) printf("<invalid=%d>", (int)*ip); else printf("<invalid=%#x>", (int)*ip); } ip++; narg--; c = ','; break; case SYS_nfssvc: putchar('('); print_integer_arg(sysdecode_nfssvc_flags, *ip); ip++; narg--; c = ','; break; case SYS_rtprio: case SYS_rtprio_thread: putchar('('); print_integer_arg(sysdecode_rtprio_function, *ip); ip++; narg--; c = ','; break; case SYS___semctl: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_semctl_cmd, *ip); ip++; narg--; break; case SYS_semget: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_semget_flags, *ip); ip++; narg--; break; case SYS_msgctl: print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_msgctl_cmd, *ip); ip++; narg--; break; case SYS_shmat: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_shmat_flags, *ip); ip++; narg--; break; case SYS_shmctl: print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_shmctl_cmd, *ip); ip++; narg--; break; #ifdef SYS_freebsd12_shm_open case SYS_freebsd12_shm_open: if (ip[0] == (uintptr_t)SHM_ANON) { printf("(SHM_ANON"); ip++; } else { print_number(ip, narg, c); } putchar(','); print_mask_arg(sysdecode_open_flags, ip[0]); putchar(','); decode_filemode(ip[1]); ip += 2; narg -= 2; break; #endif case SYS_shm_open2: if (ip[0] == (uintptr_t)SHM_ANON) { printf("(SHM_ANON"); ip++; } else { print_number(ip, narg, c); } putchar(','); print_mask_arg(sysdecode_open_flags, ip[0]); putchar(','); decode_filemode(ip[1]); putchar(','); print_mask_arg(sysdecode_shmflags, ip[2]); ip += 3; narg -= 3; break; case SYS_minherit: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_minherit_inherit, *ip); ip++; narg--; break; case SYS_rfork: putchar('('); print_mask_arg(sysdecode_rfork_flags, *ip); ip++; narg--; c = ','; break; case SYS_lio_listio: putchar('('); print_integer_arg(sysdecode_lio_listio_mode, *ip); ip++; narg--; c = ','; break; case SYS_mlockall: putchar('('); print_mask_arg(sysdecode_mlockall_flags, *ip); ip++; narg--; break; case SYS_sched_setscheduler: print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_scheduler_policy, *ip); ip++; narg--; break; case SYS_sched_get_priority_max: case SYS_sched_get_priority_min: putchar('('); print_integer_arg(sysdecode_scheduler_policy, *ip); ip++; narg--; break; case SYS_sendfile: print_number(ip, narg, c); print_number(ip, narg, c); print_number(ip, narg, c); print_number(ip, narg, c); print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_sendfile_flags, *ip); ip++; narg--; break; case SYS_kldsym: print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_kldsym_cmd, *ip); ip++; narg--; break; case SYS_sigprocmask: putchar('('); print_integer_arg(sysdecode_sigprocmask_how, *ip); ip++; narg--; c = ','; break; case SYS___acl_get_file: case SYS___acl_set_file: case SYS___acl_get_fd: case SYS___acl_set_fd: case SYS___acl_delete_file: case SYS___acl_delete_fd: case SYS___acl_aclcheck_file: case SYS___acl_aclcheck_fd: case SYS___acl_get_link: case SYS___acl_set_link: case SYS___acl_delete_link: case SYS___acl_aclcheck_link: print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_acltype, *ip); ip++; narg--; break; case SYS_sigaction: putchar('('); print_signal(*ip); ip++; narg--; c = ','; break; case SYS_extattrctl: print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_extattrnamespace, *ip); ip++; narg--; break; case SYS_nmount: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_mount_flags, *ip); ip++; narg--; break; case SYS_thr_create: print_number(ip, narg, c); print_number(ip, narg, c); putchar(','); print_mask_arg(sysdecode_thr_create_flags, *ip); ip++; narg--; break; case SYS_thr_kill: print_number(ip, narg, c); putchar(','); print_signal(*ip); ip++; narg--; break; case SYS_kldunloadf: print_number(ip, narg, c); putchar(','); print_integer_arg(sysdecode_kldunload_flags, *ip); ip++; narg--; break; case SYS_linkat: case SYS_renameat: case SYS_symlinkat: print_number(ip, narg, c); putchar(','); print_integer_arg_valid(sysdecode_atfd, *ip); ip++; narg--; print_number(ip, narg, c); break; case SYS_cap_fcntls_limit: print_number(ip, narg, c); putchar(','); arg = *ip; ip++; narg--; print_mask_arg32(sysdecode_cap_fcntlrights, arg); break; case SYS_posix_fadvise: print_number(ip, narg, c); print_number(ip, narg, c); print_number(ip, narg, c); (void)putchar(','); print_integer_arg(sysdecode_fadvice, *ip); ip++; narg--; break; case SYS_procctl: putchar('('); print_integer_arg(sysdecode_idtype, *ip); c = ','; ip++; narg--; print_number64(first, ip, narg, c); putchar(','); print_integer_arg(sysdecode_procctl_cmd, *ip); ip++; narg--; break; case SYS__umtx_op: { int op; print_number(ip, narg, c); putchar(','); if (print_mask_arg_part(sysdecode_umtx_op_flags, *ip, &op)) putchar('|'); print_integer_arg(sysdecode_umtx_op, op); putchar('>'); switch (*ip) { case UMTX_OP_CV_WAIT: ip++; narg--; putchar(','); print_mask_argul( sysdecode_umtx_cvwait_flags, *ip); break; case UMTX_OP_RW_RDLOCK: ip++; narg--; putchar(','); print_mask_argul( sysdecode_umtx_rwlock_flags, *ip); break; } ip++; narg--; break; } case SYS_ftruncate: case SYS_truncate: print_number(ip, narg, c); print_number64(first, ip, narg, c); break; case SYS_fchownat: print_number(ip, narg, c); print_number(ip, narg, c); print_number(ip, narg, c); break; case SYS_fstatat: case SYS_utimensat: print_number(ip, narg, c); print_number(ip, narg, c); break; case SYS_unlinkat: print_number(ip, narg, c); break; case SYS_sysarch: putchar('('); print_integer_arg(sysdecode_sysarch_number, *ip); ip++; narg--; c = ','; break; } switch (ktr->ktr_code) { case SYS_chflagsat: case SYS_fchownat: case SYS_faccessat: case SYS_fchmodat: case SYS_fstatat: case SYS_linkat: case SYS_unlinkat: case SYS_utimensat: putchar(','); print_mask_arg0(sysdecode_atflags, *ip); ip++; narg--; break; } } while (narg > 0) { print_number(ip, narg, c); } putchar(')'); } putchar('\n'); } void ktrsysret(struct ktr_sysret *ktr, u_int sv_flags) { register_t ret = ktr->ktr_retval; int error = ktr->ktr_error; syscallname(ktr->ktr_code, sv_flags); printf(" "); if (error == 0) { if (fancy) { printf("%ld", (long)ret); if (ret < 0 || ret > 9) printf("/%#lx", (unsigned long)ret); } else { if (decimal) printf("%ld", (long)ret); else printf("%#lx", (unsigned long)ret); } } else if (error == ERESTART) printf("RESTART"); else if (error == EJUSTRETURN) printf("JUSTRETURN"); else { printf("-1 errno %d", sysdecode_freebsd_to_abi_errno( syscallabi(sv_flags), error)); if (fancy) printf(" %s", strerror(ktr->ktr_error)); } putchar('\n'); } void ktrnamei(char *cp, int len) { printf("\"%.*s\"\n", len, cp); } void hexdump(char *p, int len, int screenwidth) { int n, i; int width; width = 0; do { width += 2; i = 13; /* base offset */ i += (width / 2) + 1; /* spaces every second byte */ i += (width * 2); /* width of bytes */ i += 3; /* " |" */ i += width; /* each byte */ i += 1; /* "|" */ } while (i < screenwidth); width -= 2; for (n = 0; n < len; n += width) { for (i = n; i < n + width; i++) { if ((i % width) == 0) { /* beginning of line */ printf(" 0x%04x", i); } if ((i % 2) == 0) { printf(" "); } if (i < len) printf("%02x", p[i] & 0xff); else printf(" "); } printf(" |"); for (i = n; i < n + width; i++) { if (i >= len) break; if (p[i] >= ' ' && p[i] <= '~') printf("%c", p[i]); else printf("."); } printf("|\n"); } if ((i % width) != 0) printf("\n"); } void visdump(char *dp, int datalen, int screenwidth) { int col = 0; char *cp; int width; char visbuf[5]; printf(" \""); col = 8; for (;datalen > 0; datalen--, dp++) { vis(visbuf, *dp, VIS_CSTYLE, *(dp+1)); cp = visbuf; /* * Keep track of printables and * space chars (like fold(1)). */ if (col == 0) { putchar('\t'); col = 8; } switch(*cp) { case '\n': col = 0; putchar('\n'); continue; case '\t': width = 8 - (col&07); break; default: width = strlen(cp); } if (col + width > (screenwidth-2)) { printf("\\\n\t"); col = 8; } col += width; do { putchar(*cp++); } while (*cp); } if (col == 0) printf(" "); printf("\"\n"); } void ktrgenio(struct ktr_genio *ktr, int len) { int datalen = len - sizeof (struct ktr_genio); char *dp = (char *)ktr + sizeof (struct ktr_genio); static int screenwidth = 0; int i, binary; printf("fd %d %s %d byte%s\n", ktr->ktr_fd, ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen, datalen == 1 ? "" : "s"); if (suppressdata) return; if (screenwidth == 0) { struct winsize ws; if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 && ws.ws_col > 8) screenwidth = ws.ws_col; else screenwidth = 80; } if (maxdata && datalen > maxdata) datalen = maxdata; for (i = 0, binary = 0; i < datalen && binary == 0; i++) { if (dp[i] >= 32 && dp[i] < 127) continue; if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9) continue; binary = 1; } if (binary) hexdump(dp, datalen, screenwidth); else visdump(dp, datalen, screenwidth); } void ktrpsig(struct ktr_psig *psig) { const char *str; print_signal(psig->signo); if (psig->action == SIG_DFL) { printf(" SIG_DFL"); } else { printf(" caught handler=0x%lx mask=0x%x", (u_long)psig->action, psig->mask.__bits[0]); } printf(" code="); str = sysdecode_sigcode(psig->signo, psig->code); if (str != NULL) printf("%s", str); else printf("<invalid=%#x>", psig->code); putchar('\n'); } void ktrcsw_old(struct ktr_csw_old *cs) { printf("%s %s\n", cs->out ? "stop" : "resume", cs->user ? "user" : "kernel"); } void ktrcsw(struct ktr_csw *cs) { printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume", cs->user ? "user" : "kernel", cs->wmesg); } void ktruser(int len, void *p) { unsigned char *cp; if (sysdecode_utrace(stdout, p, len)) { printf("\n"); return; } printf("%d ", len); cp = p; while (len--) if (decimal) printf(" %d", *cp++); else printf(" %02x", *cp++); printf("\n"); } void ktrcaprights(cap_rights_t *rightsp) { printf("cap_rights_t "); sysdecode_cap_rights(stdout, rightsp); printf("\n"); } static void ktrtimeval(struct timeval *tv) { printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec); } void ktritimerval(struct itimerval *it) { printf("itimerval { .interval = "); ktrtimeval(&it->it_interval); printf(", .value = "); ktrtimeval(&it->it_value); printf(" }\n"); } void ktrsockaddr(struct sockaddr *sa) { /* TODO: Support additional address families #include <netsmb/netbios.h> struct sockaddr_nb *nb; */ const char *str; char addr[64]; /* * note: ktrstruct() has already verified that sa points to a * buffer at least sizeof(struct sockaddr) bytes long and exactly * sa->sa_len bytes long. */ printf("struct sockaddr { "); str = sysdecode_sockaddr_family(sa->sa_family); if (str != NULL) printf("%s", str); else printf("<invalid=%d>", sa->sa_family); printf(", "); #define check_sockaddr_len(n) \ if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) { \ printf("invalid"); \ break; \ } switch(sa->sa_family) { case AF_INET: { struct sockaddr_in sa_in; memset(&sa_in, 0, sizeof(sa_in)); memcpy(&sa_in, sa, sa->sa_len); check_sockaddr_len(in); inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr); printf("%s:%u", addr, ntohs(sa_in.sin_port)); break; } case AF_INET6: { struct sockaddr_in6 sa_in6; memset(&sa_in6, 0, sizeof(sa_in6)); memcpy(&sa_in6, sa, sa->sa_len); check_sockaddr_len(in6); getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6), addr, sizeof(addr), NULL, 0, NI_NUMERICHOST); printf("[%s]:%u", addr, htons(sa_in6.sin6_port)); break; } case AF_UNIX: { struct sockaddr_un sa_un; memset(&sa_un, 0, sizeof(sa_un)); memcpy(&sa_un, sa, sa->sa_len); printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path); break; } default: printf("unknown address family"); } printf(" }\n"); } void ktrstat(struct stat *statp) { char mode[12], timestr[PATH_MAX + 4]; struct passwd *pwd; struct group *grp; struct tm *tm; /* * note: ktrstruct() has already verified that statp points to a * buffer exactly sizeof(struct stat) bytes long. */ printf("struct stat {"); printf("dev=%ju, ino=%ju, ", (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino); if (!resolv) printf("mode=0%jo, ", (uintmax_t)statp->st_mode); else { strmode(statp->st_mode, mode); printf("mode=%s, ", mode); } printf("nlink=%ju, ", (uintmax_t)statp->st_nlink); if (!resolv) { pwd = NULL; } else { #ifdef WITH_CASPER if (cappwd != NULL) pwd = cap_getpwuid(cappwd, statp->st_uid); else #endif pwd = getpwuid(statp->st_uid); } if (pwd == NULL) printf("uid=%ju, ", (uintmax_t)statp->st_uid); else printf("uid=\"%s\", ", pwd->pw_name); if (!resolv) { grp = NULL; } else { #ifdef WITH_CASPER if (capgrp != NULL) grp = cap_getgrgid(capgrp, statp->st_gid); else #endif grp = getgrgid(statp->st_gid); } if (grp == NULL) printf("gid=%ju, ", (uintmax_t)statp->st_gid); else printf("gid=\"%s\", ", grp->gr_name); printf("rdev=%ju, ", (uintmax_t)statp->st_rdev); printf("atime="); if (!resolv) printf("%jd", (intmax_t)statp->st_atim.tv_sec); else { tm = localtime(&statp->st_atim.tv_sec); strftime(timestr, sizeof(timestr), TIME_FORMAT, tm); printf("\"%s\"", timestr); } if (statp->st_atim.tv_nsec != 0) printf(".%09ld, ", statp->st_atim.tv_nsec); else printf(", "); printf("mtime="); if (!resolv) printf("%jd", (intmax_t)statp->st_mtim.tv_sec); else { tm = localtime(&statp->st_mtim.tv_sec); strftime(timestr, sizeof(timestr), TIME_FORMAT, tm); printf("\"%s\"", timestr); } if (statp->st_mtim.tv_nsec != 0) printf(".%09ld, ", statp->st_mtim.tv_nsec); else printf(", "); printf("ctime="); if (!resolv) printf("%jd", (intmax_t)statp->st_ctim.tv_sec); else { tm = localtime(&statp->st_ctim.tv_sec); strftime(timestr, sizeof(timestr), TIME_FORMAT, tm); printf("\"%s\"", timestr); } if (statp->st_ctim.tv_nsec != 0) printf(".%09ld, ", statp->st_ctim.tv_nsec); else printf(", "); printf("birthtime="); if (!resolv) printf("%jd", (intmax_t)statp->st_birthtim.tv_sec); else { tm = localtime(&statp->st_birthtim.tv_sec); strftime(timestr, sizeof(timestr), TIME_FORMAT, tm); printf("\"%s\"", timestr); } if (statp->st_birthtim.tv_nsec != 0) printf(".%09ld, ", statp->st_birthtim.tv_nsec); else printf(", "); printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x", (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize, (intmax_t)statp->st_blocks, statp->st_flags); printf(" }\n"); } void ktrstruct(char *buf, size_t buflen) { char *name, *data; size_t namelen, datalen; int i; cap_rights_t rights; struct itimerval it; struct stat sb; struct sockaddr_storage ss; for (name = buf, namelen = 0; namelen < buflen && name[namelen] != '\0'; ++namelen) /* nothing */; if (namelen == buflen) goto invalid; if (name[namelen] != '\0') goto invalid; data = buf + namelen + 1; datalen = buflen - namelen - 1; if (datalen == 0) goto invalid; /* sanity check */ for (i = 0; i < (int)namelen; ++i) if (!isalpha(name[i])) goto invalid; if (strcmp(name, "caprights") == 0) { if (datalen != sizeof(cap_rights_t)) goto invalid; memcpy(&rights, data, datalen); ktrcaprights(&rights); } else if (strcmp(name, "itimerval") == 0) { if (datalen != sizeof(struct itimerval)) goto invalid; memcpy(&it, data, datalen); ktritimerval(&it); } else if (strcmp(name, "stat") == 0) { if (datalen != sizeof(struct stat)) goto invalid; memcpy(&sb, data, datalen); ktrstat(&sb); } else if (strcmp(name, "sockaddr") == 0) { if (datalen > sizeof(ss)) goto invalid; memcpy(&ss, data, datalen); if (datalen != ss.ss_len) goto invalid; ktrsockaddr((struct sockaddr *)&ss); } else { printf("unknown structure\n"); } return; invalid: printf("invalid record\n"); } void ktrcapfail(struct ktr_cap_fail *ktr) { switch (ktr->cap_type) { case CAPFAIL_NOTCAPABLE: /* operation on fd with insufficient capabilities */ printf("operation requires "); sysdecode_cap_rights(stdout, &ktr->cap_needed); printf(", descriptor holds "); sysdecode_cap_rights(stdout, &ktr->cap_held); break; case CAPFAIL_INCREASE: /* requested more capabilities than fd already has */ printf("attempt to increase capabilities from "); sysdecode_cap_rights(stdout, &ktr->cap_held); printf(" to "); sysdecode_cap_rights(stdout, &ktr->cap_needed); break; case CAPFAIL_SYSCALL: /* called restricted syscall */ printf("disallowed system call"); break; case CAPFAIL_LOOKUP: /* absolute or AT_FDCWD path, ".." path, etc. */ printf("restricted VFS lookup"); break; default: printf("unknown capability failure: "); sysdecode_cap_rights(stdout, &ktr->cap_needed); printf(" "); sysdecode_cap_rights(stdout, &ktr->cap_held); break; } printf("\n"); } void ktrfault(struct ktr_fault *ktr) { printf("0x%jx ", (uintmax_t)ktr->vaddr); print_mask_arg(sysdecode_vmprot, ktr->type); printf("\n"); } void ktrfaultend(struct ktr_faultend *ktr) { const char *str; str = sysdecode_vmresult(ktr->result); if (str != NULL) printf("%s", str); else printf("<invalid=%d>", ktr->result); printf("\n"); } void ktrkevent(struct kevent *kev) { printf("{ ident="); switch (kev->filter) { case EVFILT_READ: case EVFILT_WRITE: case EVFILT_VNODE: case EVFILT_PROC: case EVFILT_TIMER: case EVFILT_PROCDESC: case EVFILT_EMPTY: printf("%ju", (uintmax_t)kev->ident); break; case EVFILT_SIGNAL: print_signal(kev->ident); break; default: printf("%p", (void *)kev->ident); } printf(", filter="); print_integer_arg(sysdecode_kevent_filter, kev->filter); printf(", flags="); print_mask_arg0(sysdecode_kevent_flags, kev->flags); printf(", fflags="); sysdecode_kevent_fflags(stdout, kev->filter, kev->fflags, decimal ? 10 : 16); printf(", data=%#jx, udata=%p }", (uintmax_t)kev->data, kev->udata); } void ktrstructarray(struct ktr_struct_array *ksa, size_t buflen) { struct kevent kev; char *name, *data; size_t namelen, datalen; int i; bool first; buflen -= sizeof(*ksa); for (name = (char *)(ksa + 1), namelen = 0; namelen < buflen && name[namelen] != '\0'; ++namelen) /* nothing */; if (namelen == buflen) goto invalid; if (name[namelen] != '\0') goto invalid; /* sanity check */ for (i = 0; i < (int)namelen; ++i) if (!isalnum(name[i]) && name[i] != '_') goto invalid; data = name + namelen + 1; datalen = buflen - namelen - 1; printf("struct %s[] = { ", name); first = true; for (; datalen >= ksa->struct_size; data += ksa->struct_size, datalen -= ksa->struct_size) { if (!first) printf("\n "); else first = false; if (strcmp(name, "kevent") == 0) { if (ksa->struct_size != sizeof(kev)) goto bad_size; memcpy(&kev, data, sizeof(kev)); ktrkevent(&kev); } else if (strcmp(name, "kevent_freebsd11") == 0) { struct kevent_freebsd11 kev11; if (ksa->struct_size != sizeof(kev11)) goto bad_size; memcpy(&kev11, data, sizeof(kev11)); memset(&kev, 0, sizeof(kev)); kev.ident = kev11.ident; kev.filter = kev11.filter; kev.flags = kev11.flags; kev.fflags = kev11.fflags; kev.data = kev11.data; kev.udata = kev11.udata; ktrkevent(&kev); #ifdef _WANT_KEVENT32 } else if (strcmp(name, "kevent32") == 0) { struct kevent32 kev32; if (ksa->struct_size != sizeof(kev32)) goto bad_size; memcpy(&kev32, data, sizeof(kev32)); memset(&kev, 0, sizeof(kev)); kev.ident = kev32.ident; kev.filter = kev32.filter; kev.flags = kev32.flags; kev.fflags = kev32.fflags; #if BYTE_ORDER == BIG_ENDIAN kev.data = kev32.data2 | ((int64_t)kev32.data1 << 32); #else kev.data = kev32.data1 | ((int64_t)kev32.data2 << 32); #endif kev.udata = (void *)(uintptr_t)kev32.udata; ktrkevent(&kev); } else if (strcmp(name, "kevent32_freebsd11") == 0) { struct kevent32_freebsd11 kev32; if (ksa->struct_size != sizeof(kev32)) goto bad_size; memcpy(&kev32, data, sizeof(kev32)); memset(&kev, 0, sizeof(kev)); kev.ident = kev32.ident; kev.filter = kev32.filter; kev.flags = kev32.flags; kev.fflags = kev32.fflags; kev.data = kev32.data; kev.udata = (void *)(uintptr_t)kev32.udata; ktrkevent(&kev); #endif } else { printf("<unknown structure> }\n"); return; } } printf(" }\n"); return; invalid: printf("invalid record\n"); return; bad_size: printf("<bad size> }\n"); return; } void usage(void) { fprintf(stderr, "usage: kdump [-dEnlHRrSsTA] [-f trfile] " "[-m maxdata] [-p pid] [-t trstr]\n"); exit(1); }
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