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/*
Copyright (C) 2009 RedHat inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "abrtlib.h"
#include "hooklib.h"
#include "DebugDump.h"
#include <sys/statvfs.h>
using namespace std;
void parse_conf(const char *additional_conf, unsigned *setting_MaxCrashReportsSize, bool *setting_MakeCompatCore)
{
FILE *fp = fopen(CONF_DIR"/abrt.conf", "r");
if (!fp)
return;
char line[256];
while (1)
{
if (fgets(line, sizeof(line), fp) == NULL)
{
fclose(fp);
if (additional_conf)
{
/* Next .conf file plz */
fp = fopen(additional_conf, "r");
if (fp)
{
additional_conf = NULL;
continue;
}
}
break;
}
strchrnul(line, '\n')[0] = '\0';
const char *p = skip_whitespace(line);
#undef DIRECTIVE
#define DIRECTIVE "MaxCrashReportsSize"
if (setting_MaxCrashReportsSize && strncmp(p, DIRECTIVE, sizeof(DIRECTIVE)-1) == 0)
{
p = skip_whitespace(p + sizeof(DIRECTIVE)-1);
if (*p != '=')
continue;
p = skip_whitespace(p + 1);
if (isdigit(*p))
{
/* x1.25: go a bit up, so that usual in-daemon trimming
* kicks in first, and we don't "fight" with it. */
*setting_MaxCrashReportsSize = (unsigned long)xatou(p) * 5 / 4;
}
continue;
}
#undef DIRECTIVE
#define DIRECTIVE "MakeCompatCore"
if (setting_MakeCompatCore && strncmp(p, DIRECTIVE, sizeof(DIRECTIVE)-1) == 0)
{
p = skip_whitespace(p + sizeof(DIRECTIVE)-1);
if (*p != '=')
continue;
p = skip_whitespace(p + 1);
*setting_MakeCompatCore = string_to_bool(p);
continue;
}
#undef DIRECTIVE
/* add more 'if (strncmp(p, DIRECTIVE, sizeof(DIRECTIVE)-1) == 0)' here... */
}
}
void check_free_space(unsigned setting_MaxCrashReportsSize)
{
struct statvfs vfs;
if (statvfs(DEBUG_DUMPS_DIR, &vfs) != 0)
{
perror_msg_and_die("statvfs('%s')", DEBUG_DUMPS_DIR);
}
/* Check that at least MaxCrashReportsSize/4 MBs are free */
/* fs_free_mb_x4 ~= vfs.f_bfree * vfs.f_bsize * 4, expressed in MBytes.
* Need to neither overflow nor round f_bfree down too much. */
unsigned long fs_free_mb_x4 = ((unsigned long long)vfs.f_bfree / (1024/4)) * vfs.f_bsize / 1024;
if (fs_free_mb_x4 < setting_MaxCrashReportsSize)
{
error_msg_and_die("aborting dump: only %luMiB is available on %s\n", fs_free_mb_x4 / 4, DEBUG_DUMPS_DIR);
}
}
/* rhbz#539551: "abrt going crazy when crashing process is respawned".
* Check total size of dump dir, if it overflows,
* delete oldest/biggest dumps.
*/
void trim_debug_dumps(unsigned setting_MaxCrashReportsSize, const char *exclude_path)
{
int count = 10;
string worst_dir;
while (--count >= 0)
{
const char *base_dirname = strrchr(exclude_path, '/') + 1; /* never NULL */
/* We exclude our own dump from candidates for deletion (3rd param): */
double dirsize = get_dirsize_find_largest_dir(DEBUG_DUMPS_DIR, &worst_dir, base_dirname);
if (dirsize / (1024*1024) < setting_MaxCrashReportsSize || worst_dir == "")
break;
log("size of '%s' >= %u MB, deleting '%s'", DEBUG_DUMPS_DIR, setting_MaxCrashReportsSize, worst_dir.c_str());
delete_debug_dump_dir(concat_path_file(DEBUG_DUMPS_DIR, worst_dir.c_str()).c_str());
worst_dir = "";
}
}
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