1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2010 Konstantin Belousov 5 * Copyright (c) 2015 Allan Jude <allanjude@freebsd.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #include <sys/param.h> 33 #include <sys/sysctl.h> 34 #include <sys/user.h> 35 36 #include <ctype.h> 37 #include <err.h> 38 #include <errno.h> 39 #include <signal.h> 40 #include <stdbool.h> 41 #include <stdint.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <libprocstat.h> 46 47 #include "procstat.h" 48 49 static void 50 procstat_print_signame(int sig) 51 { 52 char name[12]; 53 int i; 54 55 if ((procstat_opts & PS_OPT_SIGNUM) == 0 && sig < sys_nsig) { 56 strlcpy(name, sys_signame[sig], sizeof(name)); 57 for (i = 0; name[i] != 0; i++) 58 name[i] = toupper(name[i]); 59 xo_emit("{d:signal/%-7s/%s} ", name); 60 xo_open_container(name); 61 } else { 62 xo_emit("{d:signal/%-7d/%d} ", sig); 63 snprintf(name, 12, "%d", sig); 64 xo_open_container(name); 65 } 66 } 67 68 static void 69 procstat_close_signame(int sig) 70 { 71 char name[12]; 72 int i; 73 74 if ((procstat_opts & PS_OPT_SIGNUM) == 0 && sig < sys_nsig) { 75 strlcpy(name, sys_signame[sig], sizeof(name)); 76 for (i = 0; name[i] != 0; i++) 77 name[i] = toupper(name[i]); 78 xo_close_container(name); 79 } else { 80 snprintf(name, 12, "%d", sig); 81 xo_close_container(name); 82 } 83 } 84 85 static void 86 procstat_print_sig(const sigset_t *set, int sig, char flag) 87 { 88 xo_emit("{d:sigmember/%c}", sigismember(set, sig) ? flag : '-'); 89 switch (flag) { 90 case 'B': 91 xo_emit("{en:mask/%s}", sigismember(set, sig) ? 92 "true" : "false"); 93 break; 94 case 'C': 95 xo_emit("{en:catch/%s}", sigismember(set, sig) ? 96 "true" : "false"); 97 break; 98 case 'P': 99 xo_emit("{en:list/%s}", sigismember(set, sig) ? 100 "true" : "false"); 101 break; 102 case 'I': 103 xo_emit("{en:ignore/%s}", sigismember(set, sig) ? 104 "true" : "false"); 105 break; 106 default: 107 xo_emit("{en:unknown/%s}", sigismember(set, sig) ? 108 "true" : "false"); 109 break; 110 } 111 } 112 113 void 114 procstat_sigs(struct procstat *prstat __unused, struct kinfo_proc *kipp) 115 { 116 int j; 117 118 if ((procstat_opts & PS_OPT_NOHEADER) == 0) 119 xo_emit("{T:/%5s %-16s %-7s %4s}\n", "PID", "COMM", "SIG", 120 "FLAGS"); 121 122 xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid); 123 xo_emit("{e:command/%-16s/%s}", kipp->ki_comm); 124 xo_open_container("signals"); 125 for (j = 1; j <= _SIG_MAXSIG; j++) { 126 xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid); 127 xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm); 128 procstat_print_signame(j); 129 xo_emit(" "); 130 procstat_print_sig(&kipp->ki_siglist, j, 'P'); 131 procstat_print_sig(&kipp->ki_sigignore, j, 'I'); 132 procstat_print_sig(&kipp->ki_sigcatch, j, 'C'); 133 procstat_close_signame(j); 134 xo_emit("\n"); 135 } 136 xo_close_container("signals"); 137 } 138 139 void 140 procstat_threads_sigs(struct procstat *procstat, struct kinfo_proc *kipp) 141 { 142 struct kinfo_proc *kip; 143 int j; 144 unsigned int count, i; 145 char *threadid; 146 147 if ((procstat_opts & PS_OPT_NOHEADER) == 0) 148 xo_emit("{T:/%5s %6s %-16s %-7s %4s}\n", "PID", "TID", "COMM", 149 "SIG", "FLAGS"); 150 151 kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD, 152 kipp->ki_pid, &count); 153 if (kip == NULL) 154 return; 155 xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid); 156 xo_emit("{e:command/%-16s/%s}", kipp->ki_comm); 157 xo_open_container("threads"); 158 kinfo_proc_sort(kip, count); 159 for (i = 0; i < count; i++) { 160 kipp = &kip[i]; 161 asprintf(&threadid, "%d", kipp->ki_tid); 162 if (threadid == NULL) 163 xo_errc(1, ENOMEM, "Failed to allocate memory in " 164 "procstat_threads_sigs()"); 165 xo_open_container(threadid); 166 xo_emit("{e:thread_id/%6d/%d}", kipp->ki_tid); 167 xo_open_container("signals"); 168 169 for (j = 1; j <= _SIG_MAXSIG; j++) { 170 xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid); 171 xo_emit("{d:thread_id/%6d/%d} ", kipp->ki_tid); 172 xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm); 173 procstat_print_signame(j); 174 xo_emit(" "); 175 procstat_print_sig(&kipp->ki_siglist, j, 'P'); 176 procstat_print_sig(&kipp->ki_sigmask, j, 'B'); 177 procstat_close_signame(j); 178 xo_emit("\n"); 179 } 180 xo_close_container("signals"); 181 xo_close_container(threadid); 182 free(threadid); 183 } 184 xo_close_container("threads"); 185 procstat_freeprocs(procstat, kip); 186 } 187 188 void 189 procstat_sigfastblock(struct procstat *procstat, struct kinfo_proc *kipp) 190 { 191 struct kinfo_proc *kip; 192 char *threadid; 193 uintptr_t sigfastblk_addr; 194 int error, name[4]; 195 unsigned int count, i; 196 size_t len; 197 bool has_sigfastblk_addr; 198 199 if ((procstat_opts & PS_OPT_NOHEADER) == 0) 200 xo_emit("{T:/%5s %6s %-16s %-16s}\n", "PID", "TID", 201 "COMM", "SIGFBLK"); 202 203 kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD, 204 kipp->ki_pid, &count); 205 if (kip == NULL) 206 return; 207 xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid); 208 xo_emit("{e:command/%-16s/%s}", kipp->ki_comm); 209 xo_open_container("threads"); 210 kinfo_proc_sort(kip, count); 211 for (i = 0; i < count; i++) { 212 kipp = &kip[i]; 213 len = sizeof(sigfastblk_addr); 214 name[0] = CTL_KERN; 215 name[1] = KERN_PROC; 216 name[2] = KERN_PROC_SIGFASTBLK; 217 name[3] = kipp->ki_tid; 218 error = sysctl(name, 4, &sigfastblk_addr, &len, NULL, 0); 219 if (error < 0) { 220 if (errno != ESRCH && errno != ENOTTY) { 221 warn("sysctl: kern.proc.fastsigblk: %d", 222 kipp->ki_tid); 223 } 224 has_sigfastblk_addr = false; 225 } else 226 has_sigfastblk_addr = true; 227 228 asprintf(&threadid, "%d", kipp->ki_tid); 229 if (threadid == NULL) 230 xo_errc(1, ENOMEM, "Failed to allocate memory in " 231 "procstat_sigfastblock()"); 232 xo_open_container(threadid); 233 xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid); 234 xo_emit("{d:thread_id/%6d/%d} ", kipp->ki_tid); 235 xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm); 236 xo_emit("{e:sigfastblock/%#-16jx/%#jx}", has_sigfastblk_addr ? 237 (uintmax_t)sigfastblk_addr : (uintmax_t)-1); 238 xo_emit("{d:sigfastblock/%#-16jx/%#jx}", has_sigfastblk_addr ? 239 (uintmax_t)sigfastblk_addr : (uintmax_t)-1); 240 xo_emit("\n"); 241 xo_close_container(threadid); 242 free(threadid); 243 } 244 xo_close_container("threads"); 245 procstat_freeprocs(procstat, kip); 246 } 247