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/*
* Copyright (c) 2002-2012 Balabit
* Copyright (c) 1998-2012 Balázs Scheidler
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include "pacct-format.h"
#include "logmsg/logmsg.h"
#include "logproto/logproto-record-server.h"
/* we're using the Linux header as the glibc one is incomplete */
#include <linux/acct.h>
typedef struct acct_v3 acct_t;
#define PACCT_PREFIX ".pacct."
static gboolean handles_registered = FALSE;
static NVHandle handle_ac_flag;
static NVHandle handle_ac_tty;
static NVHandle handle_ac_exitcode;
static NVHandle handle_ac_uid;
static NVHandle handle_ac_gid;
static NVHandle handle_ac_pid;
static NVHandle handle_ac_ppid;
static NVHandle handle_ac_btime;
static NVHandle handle_ac_etime;
static NVHandle handle_ac_utime;
static NVHandle handle_ac_stime;
static NVHandle handle_ac_mem;
static NVHandle handle_ac_io;
static NVHandle handle_ac_rw;
static NVHandle handle_ac_minflt;
static NVHandle handle_ac_majflt;
static NVHandle handle_ac_swaps;
static NVHandle handle_ac_comm;
#define PACCT_REGISTER(field) \
do { \
handle_##field = log_msg_get_value_handle(PACCT_PREFIX # field); \
} while(0)
#define PACCT_CONVERT_NOP(x) (x)
#define PACCT_CONVERT_COMP_TO_ULONG(x) ((ulong) ((x & 0x1fff) << (((x >> 13) & 0x7) * 3)))
#define PACCT_CONVERT_COMP_TO_DOUBLE(x) ((double) x)
#define PACCT_FORMAT_CONVERT(msg, rec, field, format, convert) \
do { \
gchar __buf[64]; \
gsize __len; \
\
__len = g_snprintf(__buf, sizeof(__buf), format, convert(rec->field)); \
log_msg_set_value(msg, handle_##field, __buf, __len); \
} while (0)
#define PACCT_FORMAT(msg, rec, field, format) \
PACCT_FORMAT_CONVERT(msg, rec, field, format, PACCT_CONVERT_NOP)
void
pacct_register_handles(void)
{
PACCT_REGISTER(ac_flag);
PACCT_REGISTER(ac_tty);
PACCT_REGISTER(ac_exitcode);
PACCT_REGISTER(ac_uid);
PACCT_REGISTER(ac_gid);
PACCT_REGISTER(ac_pid);
PACCT_REGISTER(ac_ppid);
PACCT_REGISTER(ac_btime);
PACCT_REGISTER(ac_etime);
PACCT_REGISTER(ac_utime);
PACCT_REGISTER(ac_stime);
PACCT_REGISTER(ac_mem);
PACCT_REGISTER(ac_io);
PACCT_REGISTER(ac_rw);
PACCT_REGISTER(ac_minflt);
PACCT_REGISTER(ac_majflt);
PACCT_REGISTER(ac_swaps);
PACCT_REGISTER(ac_comm);
}
gboolean
pacct_format_handler(const MsgFormatOptions *options, LogMessage *msg,
const guchar *data, gsize length,
gsize *problem_position)
{
acct_t *rec;
gsize len;
*problem_position = 0;
if (length < sizeof(*rec))
{
gchar *buf;
buf = g_strdup_printf("Error parsing process accounting record, record too small; rec_size='%d', expected_size='%d'",
(gint) length, (gint) sizeof(*rec));
log_msg_set_value(msg, LM_V_MESSAGE, buf, -1);
g_free(buf);
return TRUE;
}
rec = (acct_t *) data;
if (rec->ac_version != 3)
{
gchar *buf;
buf = g_strdup_printf("Error parsing process accounting record, only the v3 format is supported; version='%d'",
rec->ac_version);
log_msg_set_value(msg, LM_V_MESSAGE, buf, -1);
g_free(buf);
return TRUE;
}
if (G_UNLIKELY(!handles_registered))
{
pacct_register_handles();
handles_registered = TRUE;
}
PACCT_FORMAT(msg, rec, ac_flag, "%02x");
PACCT_FORMAT(msg, rec, ac_tty, "%u");
PACCT_FORMAT(msg, rec, ac_exitcode, "%u");
PACCT_FORMAT(msg, rec, ac_uid, "%u");
PACCT_FORMAT(msg, rec, ac_gid, "%u");
PACCT_FORMAT(msg, rec, ac_pid, "%u");
PACCT_FORMAT(msg, rec, ac_ppid, "%u");
PACCT_FORMAT_CONVERT(msg, rec, ac_btime, "%lu.00", PACCT_CONVERT_COMP_TO_ULONG);
PACCT_FORMAT_CONVERT(msg, rec, ac_etime, "%9.2f", PACCT_CONVERT_COMP_TO_DOUBLE);
PACCT_FORMAT_CONVERT(msg, rec, ac_utime, "%lu.00", PACCT_CONVERT_COMP_TO_ULONG);
PACCT_FORMAT_CONVERT(msg, rec, ac_stime, "%lu.00", PACCT_CONVERT_COMP_TO_ULONG);
PACCT_FORMAT_CONVERT(msg, rec, ac_mem, "%lu", PACCT_CONVERT_COMP_TO_ULONG);
PACCT_FORMAT_CONVERT(msg, rec, ac_io, "%lu", PACCT_CONVERT_COMP_TO_ULONG);
PACCT_FORMAT_CONVERT(msg, rec, ac_rw, "%lu", PACCT_CONVERT_COMP_TO_ULONG);
PACCT_FORMAT_CONVERT(msg, rec, ac_minflt, "%lu", PACCT_CONVERT_COMP_TO_ULONG);
PACCT_FORMAT_CONVERT(msg, rec, ac_majflt, "%lu", PACCT_CONVERT_COMP_TO_ULONG);
PACCT_FORMAT_CONVERT(msg, rec, ac_swaps, "%lu", PACCT_CONVERT_COMP_TO_ULONG);
if (rec->ac_comm[ACCT_COMM - 1] == 0)
len = strlen(rec->ac_comm);
else
len = ACCT_COMM;
log_msg_set_value(msg, handle_ac_comm, rec->ac_comm, len);
log_msg_set_value_to_string(msg, LM_V_MSGFORMAT, "linux:pacct");
return TRUE;
}
static LogProtoServer *
pacct_construct_proto(const MsgFormatOptions *options, LogTransport *transport,
const LogProtoServerOptions *proto_options)
{
return log_proto_binary_record_server_new(transport, proto_options, sizeof(acct_t));
}
MsgFormatHandler pacct_handler =
{
.construct_proto = pacct_construct_proto,
.parse = &pacct_format_handler
};
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