tools: acrn-crashlog: sender module for acrnprobe

The sender corresponds to an exit of event.
Crashlog is responsible for collecting logs and save them locally.

Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Liu Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
This commit is contained in:
Liu Xinwu 2018-05-10 09:56:28 +08:00 committed by lijinxia
parent f4b2c24380
commit f83bd81645

View File

@ -3,9 +3,650 @@
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/wait.h>
#include <stdlib.h>
#include <limits.h>
#include "fsutils.h"
#include "strutils.h"
#include "cmdutils.h"
#include "load_conf.h"
#include "sender.h"
#include "probeutils.h"
#include "android_events.h"
#include "history.h"
#include "property.h"
#include "startupreason.h"
#include "log_sys.h"
/* get_log_file_* only used to copy regular file which can be mmaped */
static void get_log_file_complete(struct log_t *log, char *desdir)
{
char *des;
char *name;
int ret;
name = log->name;
ret = asprintf(&des, "%s/%s", desdir, name);
if (ret < 0) {
LOGE("compute string failed, out of memory\n");
return;
}
ret = do_copy_tail(log->path, des, 0);
if (ret < 0) {
LOGE("copy (%s) failed\n, error (%s)\n", log->path,
strerror(errno));
}
free(des);
}
static void get_log_file_tail(struct log_t *log, char *desdir)
{
char *des;
char timebuf[24];
char *name;
char *start;
int lines;
int hours;
int start_line;
int file_lines;
struct mm_file_t *mfile;
int ret;
lines = atoi(log->lines);
name = log->name;
get_uptime_string(timebuf, &hours);
ret = asprintf(&des, "%s/%s_%s", desdir, name, timebuf);
if (ret < 0) {
LOGE("compute string failed, out of memory\n");
return;
}
mfile = mmap_file(log->path);
if (!mfile) {
LOGE("mmap (%s) failed, error (%s)\n", log->path,
strerror(errno));
goto free;
}
file_lines = mm_count_lines(mfile);
if (file_lines <= 0) {
LOGW("get lines (%s, %d) failed\n", mfile->path, file_lines);
goto unmap;
}
start_line = MAX(file_lines - lines, 0) + 1;
start = mm_get_line(mfile, start_line);
ret = overwrite_file(des, start);
if (ret < 0) {
LOGE("create file with (%s, %p) failed, error (%s)\n",
des, start, strerror(errno));
goto unmap;
}
unmap:
unmap_file(mfile);
free:
free(des);
}
static void get_log_file(struct log_t *log, char *desdir)
{
int lines;
if (log->lines == NULL) {
get_log_file_complete(log, desdir);
return;
}
lines = atoi(log->lines);
if (lines > 0)
get_log_file_tail(log, desdir);
else
get_log_file_complete(log, desdir);
}
static void get_log_rotation(struct log_t *log, char *desdir)
{
char *suffix;
char *prefix;
char *dir;
char *p;
int count;
char *files[512];
int number;
int target_num = -1;
char *target_file = NULL;
char *name;
int i;
dir = strdup(log->path);
if (!dir) {
LOGE("compute string failed, out of memory\n");
return;
}
/* dir prefix suffix
* | | |
* /tmp/hvlog/hvlog_cur.[biggest]
*/
p = strrchr(dir, '/');
if (p == NULL) {
LOGE("invalid path (%s) in log (%s), ", dir, log->name);
LOGE("file_rotation only support absolute path\n");
goto free_dir;
} else {
prefix = p + 1;
*p = 0;
}
p = strstr(prefix, ".[");
if (p == NULL) {
LOGE("invalid path (%s) in log (%s)\n", log->path, log->name);
goto free_dir;
} else {
suffix = p + 2;
*p = 0;
}
p = suffix + strlen(suffix) - 1;
if (*p == ']') {
*p = 0;
} else {
LOGE("invalid path (%s) in log (%s)\n", log->path, log->name);
goto free_dir;
}
struct log_t toget;
memcpy(&toget, log, sizeof(toget));
count = lsdir(dir, files, ARRAY_SIZE(files));
if (count > 2) {
for (i = 0; i < count; i++) {
name = strrchr(files[i], '/') + 1;
if (!strstr(name, prefix))
continue;
number = atoi(strrchr(name, '.') + 1);
if (!strncmp(suffix, "biggest", 7)) {
if (target_num == -1 ||
number > target_num){
target_file = files[i];
target_num = number;
}
} else if (!strncmp(suffix, "smallest", 8)) {
if (target_num == -1 ||
number < target_num) {
target_file = files[i];
target_num = number;
}
} else if (!strncmp(suffix, "all", 3)) {
toget.path = files[i];
toget.name = name;
get_log_file(&toget, desdir);
}
}
} else if (count < 0) {
LOGE("lsdir (%s) failed, error (%s)\n", dir,
strerror(-count));
goto free;
}
if (!strncmp(suffix, "all", 3))
goto free;
if (target_file) {
toget.path = target_file;
get_log_file(&toget, desdir);
} else {
LOGW("no logs found for (%s)\n", log->name);
goto free;
}
free:
while (count > 0)
free(files[--count]);
free_dir:
free(dir);
}
static void get_log_node(struct log_t *log, char *desdir)
{
char *des;
char *name;
int ret;
name = log->name;
ret = asprintf(&des, "%s/%s", desdir, name);
if (ret < 0) {
LOGE("compute string failed, out of memory\n");
return;
}
ret = do_copy_eof(log->path, des);
if (ret < 0) {
LOGE("copy (%s) failed, error (%s)\n", log->path,
strerror(errno));
goto free;
}
free:
free(des);
}
static void out_via_fork(struct log_t *log, char *desdir)
{
char *des;
int ret;
ret = asprintf(&des, "%s/%s", desdir, log->name);
if (ret < 0) {
LOGE("compute string failed, out of memory\n");
return;
}
exec_out2file(des, log->path);
free(des);
}
static void get_log_cmd(struct log_t *log, char *desdir)
{
out_via_fork(log, desdir);
}
static void crashlog_get_log(struct log_t *log, void *data)
{
struct sender_t *crashlog;
unsigned long long start, end;
int spent;
int quota;
char *desdir = (char *)data;
crashlog = get_sender_by_name("crashlog");
if (!crashlog)
return;
quota = atoi(crashlog->spacequota);
if (!space_available(crashlog->outdir, quota)) {
hist_raise_infoerror("SPACE_FULL");
return;
}
start = get_uptime();
if (!strcmp("file", log->type))
get_log_file(log, desdir);
else if (!strcmp("node", log->type))
get_log_node(log, desdir);
else if (!strcmp("cmd", log->type))
get_log_cmd(log, desdir);
else if (!strcmp("file_rotation", log->type))
get_log_rotation(log, desdir);
end = get_uptime();
spent = (int)((end - start) / 1000000000LL);
if (spent < 5)
LOGD("get (%s) spend %ds\n", log->name, spent);
else
LOGW("get (%s) spend %ds\n", log->name, spent);
}
static void crashlog_send_crash(struct event_t *e)
{
struct crash_t *crash;
struct log_t *log;
struct sender_t *crashlog;
char *key = NULL;
char *trfile = NULL;
char *data0;
char *data1;
char *data2;
int id;
int ret;
int quota;
struct crash_t *rcrash = (struct crash_t *)e->private;
if (!strcmp(rcrash->trigger->type, "file"))
ret = asprintf(&trfile, "%s", rcrash->trigger->path);
else if (!strcmp(rcrash->trigger->type, "dir"))
ret = asprintf(&trfile, "%s/%s", rcrash->trigger->path,
e->path);
if (ret < 0) {
LOGE("compute string failed, out of memory\n");
return;
}
crash = rcrash->reclassify(rcrash, trfile, &data0, &data1, &data2);
if (crash == NULL) {
LOGE("reclassify crash (%s) failed\n", rcrash->name);
goto free_trfile;
}
/* change the class for other senders */
e->private = (void *)crash;
key = generate_event_id("CRASH", crash->name);
if (key == NULL) {
LOGE("generate event id failed, error (%s)\n",
strerror(errno));
goto free_data;
}
if (to_collect_logs(crash) ||
!strcmp(e->channel, "inotify")) {
e->dir = generate_log_dir(MODE_CRASH, key);
if (e->dir == NULL) {
LOGE("generate crashlog dir failed\n");
goto free_key;
}
generate_crashfile(e->dir, "CRASH", key,
crash->name,
data0, data1, data2);
for_each_log_collect(id, log, crash) {
if (!log)
continue;
log->get(log, (void *)e->dir);
}
}
crashlog = get_sender_by_name("crashlog");
if (!crashlog)
goto free_key;
quota = atoi(crashlog->spacequota);
if (!space_available(crashlog->outdir, quota)) {
hist_raise_infoerror("SPACE_FULL");
} else if (!strcmp(e->channel, "inotify")) {
/* get the trigger file */
char *src;
char *des;
ret = asprintf(&des, "%s/%s", e->dir, e->path);
if (ret < 0) {
LOGE("compute string failed, out of memory\n");
goto free_key;
}
ret = asprintf(&src, "%s/%s", crash->trigger->path, e->path);
if (ret < 0) {
LOGE("compute string failed, out of memory\n");
free(des);
goto free_key;
}
ret = do_copy_tail(src, des, 0);
if (ret < 0) {
LOGE("copy (%s) to (%s) failed, error (%s)\n",
src, des, strerror(-ret));
}
free(src);
free(des);
}
hist_raise_event("CRASH", crash->name, e->dir, "", key);
free_key:
free(key);
free_data:
free(data0);
free(data1);
free(data2);
free_trfile:
free(trfile);
}
static void crashlog_send_info(struct event_t *e)
{
int id;
struct info_t *info = (struct info_t *)e->private;
struct log_t *log;
char *key = generate_event_id("INFO", info->name);
if (key == NULL) {
LOGE("generate event id failed, error (%s)\n",
strerror(errno));
return;
}
if (to_collect_logs(info)) {
e->dir = generate_log_dir(MODE_STATS, key);
if (e->dir == NULL) {
LOGE("generate crashlog dir failed\n");
goto free_key;
}
for_each_log_collect(id, log, info) {
if (!log)
continue;
log->get(log, (void *)e->dir);
}
}
hist_raise_event("INFO", info->name, e->dir, "", key);
free_key:
free(key);
}
static void crashlog_send_uptime(void)
{
hist_raise_uptime(NULL);
}
static void crashlog_send_reboot(void)
{
char reason[MAXLINESIZE];
char *key;
if (swupdated(get_sender_by_name("crashlog"))) {
key = generate_event_id("INFO", "SWUPDATE");
if (key == NULL) {
LOGE("generate event id failed, error (%s)\n",
strerror(errno));
return;
}
hist_raise_event("INFO", "SWUPDATE", NULL, "", key);
free(key);
}
read_startupreason(reason);
key = generate_event_id("REBOOT", reason);
if (key == NULL) {
LOGE("generate event id failed, error (%s)\n",
strerror(errno));
return;
}
hist_raise_event("REBOOT", reason, NULL, "", key);
free(key);
}
static void crashlog_new_vmevent(char *line_to_sync, struct vm_t *vm)
{
struct sender_t *crashlog;
char event[96] = {0};
char longtime[96] = {0};
char type[96] = {0};
char rest[PATH_MAX] = {0};
char vmkey[SHA_DIGEST_LENGTH + 1] = {0};
char *vmlogpath = NULL;
char *key;
char *log;
char *cmd;
int ret;
int quota;
char *dir;
/* VM events in history_event like this:
*
* "CRASH xxxxxxxxxxxxxxxxxxxx 2017-11-11/03:12:59 JAVACRASH
* /data/logs/crashlog0_xxxxxxxxxxxxxxxxxxxx"
* "REBOOT xxxxxxxxxxxxxxxxxxxx 2011-11-11/11:20:51 POWER-ON
* 0000:00:00"
*/
char *vm_format = "%[^ ]%*[ ]%[^ ]%*[ ]%[^ ]%*[ ]%[^ ]%*[ ]%[^\n]%*c";
ret = sscanf(line_to_sync, vm_format, event, vmkey, longtime,
type, rest);
if (ret != 5) {
LOGE("get a invalied line from (%s), skip\n", vm->name);
return;
}
crashlog = get_sender_by_name("crashlog");
if (!crashlog)
return;
quota = atoi(crashlog->spacequota);
if (!space_available(crashlog->outdir, quota)) {
hist_raise_infoerror("SPACE_FULL");
return;
}
key = generate_event_id("SOS", vmkey);
if (key == NULL) {
LOGE("generate event id failed, error (%s)\n",
strerror(errno));
return;
}
dir = generate_log_dir(MODE_VMEVENT, key);
if (dir == NULL) {
LOGE("generate crashlog dir failed\n");
goto free_key;
}
/* if line contains log, we need dump each file in the logdir
*/
log = strstr(rest, "/logs/");
if (log) {
ret = asprintf(&vmlogpath, "%s", log + 1);
if (ret < 0) {
LOGE("compute string failed, out of memory\n");
goto free_dir;
}
ret = asprintf(&cmd, "rdump %s %s", vmlogpath, dir);
if (ret < 0) {
LOGE("compute string failed, out of memory\n");
free(vmlogpath);
goto free_dir;
}
debugfs_cmd(loop_dev, cmd, NULL);
free(cmd);
free(vmlogpath);
}
generate_crashfile(dir, event, key, type, vm->name,
vmkey, NULL);
hist_raise_event(vm->name, type, dir, "", key);
free_dir:
free(dir);
free_key:
free(key);
}
static void crashlog_send(struct event_t *e)
{
int id;
struct log_t *log;
for_each_log(id, log, conf) {
if (!log)
continue;
log->get = crashlog_get_log;
}
switch (e->event_type) {
case CRASH:
crashlog_send_crash(e);
break;
case INFO:
crashlog_send_info(e);
break;
case UPTIME:
crashlog_send_uptime();
break;
case REBOOT:
crashlog_send_reboot();
break;
case VM:
refresh_vm_history(get_sender_by_name("crashlog"),
crashlog_new_vmevent);
break;
default:
LOGE("unsupoorted event type %d\n", e->event_type);
}
}
int init_sender(void)
{
int ret;
int id;
int fd;
struct sender_t *sender;
struct uptime_t *uptime;
for_each_sender(id, sender, conf) {
if (!sender)
continue;
ret = asprintf(&sender->log_vmrecordid, "%s/vmrecordid",
sender->outdir);
if (ret < 0) {
LOGE("compute string failed, out of memory\n");
return -ENOMEM;
}
if (!directory_exists(sender->outdir))
if (mkdir_p(sender->outdir) < 0) {
LOGE("mkdir (%s) failed, error (%s)\n",
sender->outdir, strerror(errno));
return -errno;
}
ret = init_properties(sender);
if (ret) {
LOGE("init sender failed\n");
exit(-1);
}
/* touch uptime file, to add inotify */
uptime = sender->uptime;
if (uptime) {
fd = open(uptime->path, O_RDWR | O_CREAT, 0666);
if (fd < 0) {
LOGE("open failed with (%s, %d), error (%s)\n",
uptime->path, atoi(uptime->frequency),
strerror(errno));
return -errno;
}
close(fd);
}
if (!strncmp(sender->name, "crashlog",
strlen(sender->name))) {
sender->send = crashlog_send;
ret = prepare_history();
if (ret)
return -1;
}
}
return 0;
}