| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <dirent.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <limits.h> |
| #include <stdbool.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/capability.h> |
| #include <sys/prctl.h> |
| #include <sys/resource.h> |
| #include <sys/stat.h> |
| #include <sys/time.h> |
| #include <sys/wait.h> |
| #include <unistd.h> |
| |
| #include <cutils/properties.h> |
| |
| #include "private/android_filesystem_config.h" |
| |
| #define LOG_TAG "dumpstate" |
| #include <cutils/log.h> |
| |
| #include "dumpstate.h" |
| |
| /* read before root is shed */ |
| static char cmdline_buf[16384] = "(unknown)"; |
| static const char *dump_traces_path = NULL; |
| |
| static char screenshot_path[PATH_MAX] = ""; |
| |
| #define PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops" |
| |
| #define TOMBSTONE_DIR "/data/tombstones" |
| #define TOMBSTONE_FILE_PREFIX TOMBSTONE_DIR "/tombstone_" |
| /* Can accomodate a tombstone number up to 9999. */ |
| #define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4) |
| #define NUM_TOMBSTONES 10 |
| |
| typedef struct { |
| char name[TOMBSTONE_MAX_LEN]; |
| int fd; |
| } tombstone_data_t; |
| |
| static tombstone_data_t tombstone_data[NUM_TOMBSTONES]; |
| |
| /* Get the fds of any tombstone that was modified in the last half an hour. */ |
| static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) { |
| time_t thirty_minutes_ago = time(NULL) - 60*30; |
| for (size_t i = 0; i < NUM_TOMBSTONES; i++) { |
| snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i); |
| int fd = TEMP_FAILURE_RETRY(open(data[i].name, |
| O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); |
| struct stat st; |
| if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) && |
| (time_t) st.st_mtime >= thirty_minutes_ago) { |
| data[i].fd = fd; |
| } else { |
| close(fd); |
| data[i].fd = -1; |
| } |
| } |
| } |
| |
| static void dump_dev_files(const char *title, const char *driverpath, const char *filename) |
| { |
| DIR *d; |
| struct dirent *de; |
| char path[PATH_MAX]; |
| |
| d = opendir(driverpath); |
| if (d == NULL) { |
| return; |
| } |
| |
| while ((de = readdir(d))) { |
| if (de->d_type != DT_LNK) { |
| continue; |
| } |
| snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename); |
| dump_file(title, path); |
| } |
| |
| closedir(d); |
| } |
| |
| static bool skip_not_stat(const char *path) { |
| static const char stat[] = "/stat"; |
| size_t len = strlen(path); |
| if (path[len - 1] == '/') { /* Directory? */ |
| return false; |
| } |
| return strcmp(path + len - sizeof(stat) + 1, stat); /* .../stat? */ |
| } |
| |
| static const char mmcblk0[] = "/sys/block/mmcblk0/"; |
| unsigned long worst_write_perf = 20000; /* in KB/s */ |
| |
| static int dump_stat_from_fd(const char *title __unused, const char *path, int fd) { |
| unsigned long fields[11], read_perf, write_perf; |
| bool z; |
| char *cp, *buffer = NULL; |
| size_t i = 0; |
| FILE *fp = fdopen(fd, "rb"); |
| getline(&buffer, &i, fp); |
| fclose(fp); |
| if (!buffer) { |
| return -errno; |
| } |
| i = strlen(buffer); |
| while ((i > 0) && (buffer[i - 1] == '\n')) { |
| buffer[--i] = '\0'; |
| } |
| if (!*buffer) { |
| free(buffer); |
| return 0; |
| } |
| z = true; |
| for (cp = buffer, i = 0; i < (sizeof(fields) / sizeof(fields[0])); ++i) { |
| fields[i] = strtol(cp, &cp, 0); |
| if (fields[i] != 0) { |
| z = false; |
| } |
| } |
| if (z) { /* never accessed */ |
| free(buffer); |
| return 0; |
| } |
| |
| if (!strncmp(path, mmcblk0, sizeof(mmcblk0) - 1)) { |
| path += sizeof(mmcblk0) - 1; |
| } |
| |
| printf("%s: %s\n", path, buffer); |
| free(buffer); |
| |
| read_perf = 0; |
| if (fields[3]) { |
| read_perf = 512 * fields[2] / fields[3]; |
| } |
| write_perf = 0; |
| if (fields[7]) { |
| write_perf = 512 * fields[6] / fields[7]; |
| } |
| printf("%s: read: %luKB/s write: %luKB/s\n", path, read_perf, write_perf); |
| if ((write_perf > 1) && (write_perf < worst_write_perf)) { |
| worst_write_perf = write_perf; |
| } |
| return 0; |
| } |
| |
| /* Copied policy from system/core/logd/LogBuffer.cpp */ |
| |
| #define LOG_BUFFER_SIZE (256 * 1024) |
| #define LOG_BUFFER_MIN_SIZE (64 * 1024UL) |
| #define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL) |
| |
| static bool valid_size(unsigned long value) { |
| if ((value < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < value)) { |
| return false; |
| } |
| |
| long pages = sysconf(_SC_PHYS_PAGES); |
| if (pages < 1) { |
| return true; |
| } |
| |
| long pagesize = sysconf(_SC_PAGESIZE); |
| if (pagesize <= 1) { |
| pagesize = PAGE_SIZE; |
| } |
| |
| // maximum memory impact a somewhat arbitrary ~3% |
| pages = (pages + 31) / 32; |
| unsigned long maximum = pages * pagesize; |
| |
| if ((maximum < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < maximum)) { |
| return true; |
| } |
| |
| return value <= maximum; |
| } |
| |
| static unsigned long property_get_size(const char *key) { |
| unsigned long value; |
| char *cp, property[PROPERTY_VALUE_MAX]; |
| |
| property_get(key, property, ""); |
| value = strtoul(property, &cp, 10); |
| |
| switch(*cp) { |
| case 'm': |
| case 'M': |
| value *= 1024; |
| /* FALLTHRU */ |
| case 'k': |
| case 'K': |
| value *= 1024; |
| /* FALLTHRU */ |
| case '\0': |
| break; |
| |
| default: |
| value = 0; |
| } |
| |
| if (!valid_size(value)) { |
| value = 0; |
| } |
| |
| return value; |
| } |
| |
| /* timeout in ms */ |
| static unsigned long logcat_timeout(char *name) { |
| static const char global_tuneable[] = "persist.logd.size"; // Settings App |
| static const char global_default[] = "ro.logd.size"; // BoardConfig.mk |
| char key[PROP_NAME_MAX]; |
| unsigned long property_size, default_size; |
| |
| default_size = property_get_size(global_tuneable); |
| if (!default_size) { |
| default_size = property_get_size(global_default); |
| } |
| |
| snprintf(key, sizeof(key), "%s.%s", global_tuneable, name); |
| property_size = property_get_size(key); |
| |
| if (!property_size) { |
| snprintf(key, sizeof(key), "%s.%s", global_default, name); |
| property_size = property_get_size(key); |
| } |
| |
| if (!property_size) { |
| property_size = default_size; |
| } |
| |
| if (!property_size) { |
| property_size = LOG_BUFFER_SIZE; |
| } |
| |
| /* Engineering margin is ten-fold our guess */ |
| return 10 * (property_size + worst_write_perf) / worst_write_perf; |
| } |
| |
| /* End copy from system/core/logd/LogBuffer.cpp */ |
| |
| /* dumps the current system state to stdout */ |
| static void dumpstate() { |
| unsigned long timeout; |
| time_t now = time(NULL); |
| char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX]; |
| char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX]; |
| char network[PROPERTY_VALUE_MAX], date[80]; |
| char build_type[PROPERTY_VALUE_MAX]; |
| |
| property_get("ro.build.display.id", build, "(unknown)"); |
| property_get("ro.build.fingerprint", fingerprint, "(unknown)"); |
| property_get("ro.build.type", build_type, "(unknown)"); |
| property_get("ro.baseband", radio, "(unknown)"); |
| property_get("ro.bootloader", bootloader, "(unknown)"); |
| property_get("gsm.operator.alpha", network, "(unknown)"); |
| strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now)); |
| |
| printf("========================================================\n"); |
| printf("== dumpstate: %s\n", date); |
| printf("========================================================\n"); |
| |
| printf("\n"); |
| printf("Build: %s\n", build); |
| printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */ |
| printf("Bootloader: %s\n", bootloader); |
| printf("Radio: %s\n", radio); |
| printf("Network: %s\n", network); |
| |
| printf("Kernel: "); |
| dump_file(NULL, "/proc/version"); |
| printf("Command line: %s\n", strtok(cmdline_buf, "\n")); |
| printf("\n"); |
| |
| dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version"); |
| run_command("UPTIME", 10, "uptime", NULL); |
| dump_files("UPTIME MMC PERF", mmcblk0, skip_not_stat, dump_stat_from_fd); |
| dump_file("MEMORY INFO", "/proc/meminfo"); |
| run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-t", NULL); |
| run_command("PROCRANK", 20, "procrank", NULL); |
| dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat"); |
| dump_file("VMALLOC INFO", "/proc/vmallocinfo"); |
| dump_file("SLAB INFO", "/proc/slabinfo"); |
| dump_file("ZONEINFO", "/proc/zoneinfo"); |
| dump_file("PAGETYPEINFO", "/proc/pagetypeinfo"); |
| dump_file("BUDDYINFO", "/proc/buddyinfo"); |
| dump_file("FRAGMENTATION INFO", "/d/extfrag/unusable_index"); |
| |
| dump_file("KERNEL WAKELOCKS", "/proc/wakelocks"); |
| dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources"); |
| dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state"); |
| dump_file("KERNEL SYNC", "/d/sync"); |
| |
| run_command("PROCESSES", 10, "ps", "-P", NULL); |
| run_command("PROCESSES AND THREADS", 10, "ps", "-t", "-p", "-P", NULL); |
| run_command("PROCESSES (SELINUX LABELS)", 10, "ps", "-Z", NULL); |
| run_command("LIBRANK", 10, "librank", NULL); |
| |
| do_dmesg(); |
| |
| run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL); |
| for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES"); |
| for_each_tid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS"); |
| |
| if (screenshot_path[0]) { |
| ALOGI("taking screenshot\n"); |
| run_command(NULL, 10, "/system/bin/screencap", "-p", screenshot_path, NULL); |
| ALOGI("wrote screenshot: %s\n", screenshot_path); |
| } |
| |
| // dump_file("EVENT LOG TAGS", "/etc/event-log-tags"); |
| // calculate timeout |
| timeout = logcat_timeout("main") + logcat_timeout("system") + logcat_timeout("crash"); |
| if (timeout < 20000) { |
| timeout = 20000; |
| } |
| run_command("SYSTEM LOG", timeout / 1000, "logcat", "-v", "threadtime", "-d", "*:v", NULL); |
| timeout = logcat_timeout("events"); |
| if (timeout < 20000) { |
| timeout = 20000; |
| } |
| run_command("EVENT LOG", timeout / 1000, "logcat", "-b", "events", "-v", "threadtime", "-d", "*:v", NULL); |
| timeout = logcat_timeout("radio"); |
| if (timeout < 20000) { |
| timeout = 20000; |
| } |
| run_command("RADIO LOG", timeout / 1000, "logcat", "-b", "radio", "-v", "threadtime", "-d", "*:v", NULL); |
| |
| run_command("LOG STATISTICS", 10, "logcat", "-b", "all", "-S", NULL); |
| |
| /* show the traces we collected in main(), if that was done */ |
| if (dump_traces_path != NULL) { |
| dump_file("VM TRACES JUST NOW", dump_traces_path); |
| } |
| |
| /* only show ANR traces if they're less than 15 minutes old */ |
| struct stat st; |
| char anr_traces_path[PATH_MAX]; |
| property_get("dalvik.vm.stack-trace-file", anr_traces_path, ""); |
| if (!anr_traces_path[0]) { |
| printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n"); |
| } else { |
| int fd = TEMP_FAILURE_RETRY(open(anr_traces_path, |
| O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); |
| if (fd < 0) { |
| printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno)); |
| } else { |
| dump_file_from_fd("VM TRACES AT LAST ANR", anr_traces_path, fd); |
| } |
| } |
| |
| /* slow traces for slow operations */ |
| if (anr_traces_path[0] != 0) { |
| int tail = strlen(anr_traces_path)-1; |
| while (tail > 0 && anr_traces_path[tail] != '/') { |
| tail--; |
| } |
| int i = 0; |
| while (1) { |
| sprintf(anr_traces_path+tail+1, "slow%02d.txt", i); |
| if (stat(anr_traces_path, &st)) { |
| // No traces file at this index, done with the files. |
| break; |
| } |
| dump_file("VM TRACES WHEN SLOW", anr_traces_path); |
| i++; |
| } |
| } |
| |
| int dumped = 0; |
| for (size_t i = 0; i < NUM_TOMBSTONES; i++) { |
| if (tombstone_data[i].fd != -1) { |
| dumped = 1; |
| dump_file_from_fd("TOMBSTONE", tombstone_data[i].name, tombstone_data[i].fd); |
| tombstone_data[i].fd = -1; |
| } |
| } |
| if (!dumped) { |
| printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR); |
| } |
| |
| dump_file("NETWORK DEV INFO", "/proc/net/dev"); |
| dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all"); |
| dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt"); |
| dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl"); |
| dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats"); |
| |
| if (!stat(PSTORE_LAST_KMSG, &st)) { |
| /* Also TODO: Make console-ramoops CAP_SYSLOG protected. */ |
| dump_file("LAST KMSG", PSTORE_LAST_KMSG); |
| } else { |
| /* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */ |
| dump_file("LAST KMSG", "/proc/last_kmsg"); |
| } |
| |
| /* kernels must set CONFIG_PSTORE_PMSG, slice up pstore with device tree */ |
| run_command("LAST LOGCAT", 10, "logcat", "-L", "-v", "threadtime", |
| "-b", "all", "-d", "*:v", NULL); |
| |
| /* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */ |
| |
| run_command("NETWORK INTERFACES", 10, "ip", "link", NULL); |
| |
| run_command("IPv4 ADDRESSES", 10, "ip", "-4", "addr", "show", NULL); |
| run_command("IPv6 ADDRESSES", 10, "ip", "-6", "addr", "show", NULL); |
| |
| run_command("IP RULES", 10, "ip", "rule", "show", NULL); |
| run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL); |
| |
| dump_route_tables(); |
| |
| run_command("ARP CACHE", 10, "ip", "-4", "neigh", "show", NULL); |
| run_command("IPv6 ND CACHE", 10, "ip", "-6", "neigh", "show", NULL); |
| |
| run_command("NETWORK DIAGNOSTICS", 10, "dumpsys", "connectivity", "--diag", NULL); |
| |
| run_command("IPTABLES", 10, SU_PATH, "root", "iptables", "-L", "-nvx", NULL); |
| run_command("IP6TABLES", 10, SU_PATH, "root", "ip6tables", "-L", "-nvx", NULL); |
| run_command("IPTABLE NAT", 10, SU_PATH, "root", "iptables", "-t", "nat", "-L", "-nvx", NULL); |
| /* no ip6 nat */ |
| run_command("IPTABLE RAW", 10, SU_PATH, "root", "iptables", "-t", "raw", "-L", "-nvx", NULL); |
| run_command("IP6TABLE RAW", 10, SU_PATH, "root", "ip6tables", "-t", "raw", "-L", "-nvx", NULL); |
| |
| run_command("WIFI NETWORKS", 20, |
| SU_PATH, "root", "wpa_cli", "IFNAME=wlan0", "list_networks", NULL); |
| |
| #ifdef FWDUMP_bcmdhd |
| run_command("DUMP WIFI INTERNAL COUNTERS", 20, |
| SU_PATH, "root", "wlutil", "counters", NULL); |
| #endif |
| dump_file("INTERRUPTS (1)", "/proc/interrupts"); |
| |
| property_get("dhcp.wlan0.gateway", network, ""); |
| if (network[0]) |
| run_command("PING GATEWAY", 10, "ping", "-c", "3", "-i", ".5", network, NULL); |
| property_get("dhcp.wlan0.dns1", network, ""); |
| if (network[0]) |
| run_command("PING DNS1", 10, "ping", "-c", "3", "-i", ".5", network, NULL); |
| property_get("dhcp.wlan0.dns2", network, ""); |
| if (network[0]) |
| run_command("PING DNS2", 10, "ping", "-c", "3", "-i", ".5", network, NULL); |
| #ifdef FWDUMP_bcmdhd |
| run_command("DUMP WIFI STATUS", 20, |
| SU_PATH, "root", "dhdutil", "-i", "wlan0", "dump", NULL); |
| run_command("DUMP WIFI INTERNAL COUNTERS", 20, |
| SU_PATH, "root", "wlutil", "counters", NULL); |
| #endif |
| dump_file("INTERRUPTS (2)", "/proc/interrupts"); |
| |
| print_properties(); |
| |
| run_command("VOLD DUMP", 10, "vdc", "dump", NULL); |
| run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL); |
| |
| run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL); |
| |
| run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL); |
| |
| printf("------ BACKLIGHTS ------\n"); |
| printf("LCD brightness="); |
| dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness"); |
| printf("Button brightness="); |
| dump_file(NULL, "/sys/class/leds/button-backlight/brightness"); |
| printf("Keyboard brightness="); |
| dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness"); |
| printf("ALS mode="); |
| dump_file(NULL, "/sys/class/leds/lcd-backlight/als"); |
| printf("LCD driver registers:\n"); |
| dump_file(NULL, "/sys/class/leds/lcd-backlight/registers"); |
| printf("\n"); |
| |
| /* Binder state is expensive to look at as it uses a lot of memory. */ |
| dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log"); |
| dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log"); |
| dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions"); |
| dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats"); |
| dump_file("BINDER STATE", "/sys/kernel/debug/binder/state"); |
| |
| printf("========================================================\n"); |
| printf("== Board\n"); |
| printf("========================================================\n"); |
| |
| dumpstate_board(); |
| printf("\n"); |
| |
| /* Migrate the ril_dumpstate to a dumpstate_board()? */ |
| char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0}; |
| property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30"); |
| if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) { |
| if (0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1)) { |
| // su does not exist on user builds, so try running without it. |
| // This way any implementations of vril-dump that do not require |
| // root can run on user builds. |
| run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), |
| "vril-dump", NULL); |
| } else { |
| run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), |
| SU_PATH, "root", "vril-dump", NULL); |
| } |
| } |
| |
| printf("========================================================\n"); |
| printf("== Android Framework Services\n"); |
| printf("========================================================\n"); |
| |
| /* the full dumpsys is starting to take a long time, so we need |
| to increase its timeout. we really need to do the timeouts in |
| dumpsys itself... */ |
| run_command("DUMPSYS", 60, "dumpsys", NULL); |
| |
| printf("========================================================\n"); |
| printf("== Checkins\n"); |
| printf("========================================================\n"); |
| |
| run_command("CHECKIN BATTERYSTATS", 30, "dumpsys", "batterystats", "-c", NULL); |
| run_command("CHECKIN MEMINFO", 30, "dumpsys", "meminfo", "--checkin", NULL); |
| run_command("CHECKIN NETSTATS", 30, "dumpsys", "netstats", "--checkin", NULL); |
| run_command("CHECKIN PROCSTATS", 30, "dumpsys", "procstats", "-c", NULL); |
| run_command("CHECKIN USAGESTATS", 30, "dumpsys", "usagestats", "-c", NULL); |
| run_command("CHECKIN PACKAGE", 30, "dumpsys", "package", "--checkin", NULL); |
| |
| printf("========================================================\n"); |
| printf("== Running Application Activities\n"); |
| printf("========================================================\n"); |
| |
| run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL); |
| |
| printf("========================================================\n"); |
| printf("== Running Application Services\n"); |
| printf("========================================================\n"); |
| |
| run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL); |
| |
| printf("========================================================\n"); |
| printf("== Running Application Providers\n"); |
| printf("========================================================\n"); |
| |
| run_command("APP SERVICES", 30, "dumpsys", "activity", "provider", "all", NULL); |
| |
| |
| printf("========================================================\n"); |
| printf("== dumpstate: done\n"); |
| printf("========================================================\n"); |
| } |
| |
| static void usage() { |
| fprintf(stderr, "usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] [-z]] [-s] [-q]\n" |
| " -o: write to file (instead of stdout)\n" |
| " -d: append date to filename (requires -o)\n" |
| " -p: capture screenshot to filename.png (requires -o)\n" |
| " -s: write output to control socket (for init)\n" |
| " -b: play sound file instead of vibrate, at beginning of job\n" |
| " -e: play sound file instead of vibrate, at end of job\n" |
| " -q: disable vibrate\n" |
| " -B: send broadcast when finished (requires -o and -p)\n" |
| ); |
| } |
| |
| static void sigpipe_handler(int n) { |
| // don't complain to stderr or stdout |
| _exit(EXIT_FAILURE); |
| } |
| |
| static void vibrate(FILE* vibrator, int ms) { |
| fprintf(vibrator, "%d\n", ms); |
| fflush(vibrator); |
| } |
| |
| int main(int argc, char *argv[]) { |
| struct sigaction sigact; |
| int do_add_date = 0; |
| int do_vibrate = 1; |
| char* use_outfile = 0; |
| int use_socket = 0; |
| int do_fb = 0; |
| int do_broadcast = 0; |
| |
| if (getuid() != 0) { |
| // Old versions of the adb client would call the |
| // dumpstate command directly. Newer clients |
| // call /system/bin/bugreport instead. If we detect |
| // we're being called incorrectly, then exec the |
| // correct program. |
| return execl("/system/bin/bugreport", "/system/bin/bugreport", NULL); |
| } |
| |
| ALOGI("begin\n"); |
| |
| /* clear SIGPIPE handler */ |
| memset(&sigact, 0, sizeof(sigact)); |
| sigact.sa_handler = sigpipe_handler; |
| sigaction(SIGPIPE, &sigact, NULL); |
| |
| /* set as high priority, and protect from OOM killer */ |
| setpriority(PRIO_PROCESS, 0, -20); |
| FILE *oom_adj = fopen("/proc/self/oom_adj", "we"); |
| if (oom_adj) { |
| fputs("-17", oom_adj); |
| fclose(oom_adj); |
| } |
| |
| /* parse arguments */ |
| int c; |
| while ((c = getopt(argc, argv, "dho:svqzpB")) != -1) { |
| switch (c) { |
| case 'd': do_add_date = 1; break; |
| case 'o': use_outfile = optarg; break; |
| case 's': use_socket = 1; break; |
| case 'v': break; // compatibility no-op |
| case 'q': do_vibrate = 0; break; |
| case 'p': do_fb = 1; break; |
| case 'B': do_broadcast = 1; break; |
| case '?': printf("\n"); |
| case 'h': |
| usage(); |
| exit(1); |
| } |
| } |
| |
| // If we are going to use a socket, do it as early as possible |
| // to avoid timeouts from bugreport. |
| if (use_socket) { |
| redirect_to_socket(stdout, "dumpstate"); |
| } |
| |
| /* open the vibrator before dropping root */ |
| FILE *vibrator = 0; |
| if (do_vibrate) { |
| vibrator = fopen("/sys/class/timed_output/vibrator/enable", "we"); |
| if (vibrator) { |
| vibrate(vibrator, 150); |
| } |
| } |
| |
| /* read /proc/cmdline before dropping root */ |
| FILE *cmdline = fopen("/proc/cmdline", "re"); |
| if (cmdline != NULL) { |
| fgets(cmdline_buf, sizeof(cmdline_buf), cmdline); |
| fclose(cmdline); |
| } |
| |
| /* collect stack traces from Dalvik and native processes (needs root) */ |
| dump_traces_path = dump_traces(); |
| |
| /* Get the tombstone fds here while we are running as root. */ |
| get_tombstone_fds(tombstone_data); |
| |
| /* ensure we will keep capabilities when we drop root */ |
| if (prctl(PR_SET_KEEPCAPS, 1) < 0) { |
| ALOGE("prctl(PR_SET_KEEPCAPS) failed: %s\n", strerror(errno)); |
| return -1; |
| } |
| |
| /* switch to non-root user and group */ |
| gid_t groups[] = { AID_LOG, AID_SDCARD_R, AID_SDCARD_RW, |
| AID_MOUNT, AID_INET, AID_NET_BW_STATS }; |
| if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) { |
| ALOGE("Unable to setgroups, aborting: %s\n", strerror(errno)); |
| return -1; |
| } |
| if (setgid(AID_SHELL) != 0) { |
| ALOGE("Unable to setgid, aborting: %s\n", strerror(errno)); |
| return -1; |
| } |
| if (setuid(AID_SHELL) != 0) { |
| ALOGE("Unable to setuid, aborting: %s\n", strerror(errno)); |
| return -1; |
| } |
| |
| struct __user_cap_header_struct capheader; |
| struct __user_cap_data_struct capdata[2]; |
| memset(&capheader, 0, sizeof(capheader)); |
| memset(&capdata, 0, sizeof(capdata)); |
| capheader.version = _LINUX_CAPABILITY_VERSION_3; |
| capheader.pid = 0; |
| |
| capdata[CAP_TO_INDEX(CAP_SYSLOG)].permitted = CAP_TO_MASK(CAP_SYSLOG); |
| capdata[CAP_TO_INDEX(CAP_SYSLOG)].effective = CAP_TO_MASK(CAP_SYSLOG); |
| capdata[0].inheritable = 0; |
| capdata[1].inheritable = 0; |
| |
| if (capset(&capheader, &capdata[0]) < 0) { |
| ALOGE("capset failed: %s\n", strerror(errno)); |
| return -1; |
| } |
| |
| /* redirect output if needed */ |
| char path[PATH_MAX], tmp_path[PATH_MAX]; |
| pid_t gzip_pid = -1; |
| |
| if (!use_socket && use_outfile) { |
| strlcpy(path, use_outfile, sizeof(path)); |
| if (do_add_date) { |
| char date[80]; |
| time_t now = time(NULL); |
| strftime(date, sizeof(date), "-%Y-%m-%d-%H-%M-%S", localtime(&now)); |
| strlcat(path, date, sizeof(path)); |
| } |
| if (do_fb) { |
| strlcpy(screenshot_path, path, sizeof(screenshot_path)); |
| strlcat(screenshot_path, ".png", sizeof(screenshot_path)); |
| } |
| strlcat(path, ".txt", sizeof(path)); |
| strlcpy(tmp_path, path, sizeof(tmp_path)); |
| strlcat(tmp_path, ".tmp", sizeof(tmp_path)); |
| redirect_to_file(stdout, tmp_path); |
| } |
| |
| dumpstate(); |
| |
| /* done */ |
| if (vibrator) { |
| for (int i = 0; i < 3; i++) { |
| vibrate(vibrator, 75); |
| usleep((75 + 50) * 1000); |
| } |
| fclose(vibrator); |
| } |
| |
| /* wait for gzip to finish, otherwise it might get killed when we exit */ |
| if (gzip_pid > 0) { |
| fclose(stdout); |
| waitpid(gzip_pid, NULL, 0); |
| } |
| |
| /* rename the (now complete) .tmp file to its final location */ |
| if (use_outfile && rename(tmp_path, path)) { |
| fprintf(stderr, "rename(%s, %s): %s\n", tmp_path, path, strerror(errno)); |
| } |
| |
| /* tell activity manager we're done */ |
| if (do_broadcast && use_outfile && do_fb) { |
| run_command(NULL, 5, "/system/bin/am", "broadcast", "--user", "0", |
| "-a", "android.intent.action.BUGREPORT_FINISHED", |
| "--es", "android.intent.extra.BUGREPORT", path, |
| "--es", "android.intent.extra.SCREENSHOT", screenshot_path, |
| "--receiver-permission", "android.permission.DUMP", NULL); |
| } |
| |
| ALOGI("done\n"); |
| |
| return 0; |
| } |
