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Make JSON audit logging a configurable option

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Remove compile-time setting for generating audit logs
as JSON, creating a new config option (SecAuditLogFormat).
sec_audit_logger is now a wrapper for sec_audit_logger_json
or sec_audit_logger_native. This has the disadvantage of
making the audit log generation code harder to maintain,
but the logger function itself now is no longer pepper
with binary branches.
This commit is contained in:
Robert Paprocki 2015-07-18 22:43:10 -07:00 committed by Felipe Zimmerle
parent dd79bea0b4
commit 7a39b4b5b9
5 changed files with 819 additions and 348 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
apache2/apache2_config.c
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@ -73,6 +73,7 @@ void *create_directory_config(apr_pool_t *mp, char *path)
/* audit log variables */
dcfg->auditlog_flag = NOT_SET;
dcfg->auditlog_type = NOT_SET;
dcfg->auditlog_format = NOT_SET;
dcfg->max_rule_time = NOT_SET;
dcfg->auditlog_dirperms = NOT_SET;
dcfg->auditlog_fileperms = NOT_SET;
@ -503,6 +504,8 @@ void *merge_directory_configs(apr_pool_t *mp, void *_parent, void *_child)
merged->auditlog2_fd = parent->auditlog2_fd;
merged->auditlog2_name = parent->auditlog2_name;
}
merged->auditlog_format = (child->auditlog_format == NOT_SET
? parent->auditlog_format : child->auditlog_format);
merged->auditlog_storage_dir = (child->auditlog_storage_dir == NOT_SET_P
? parent->auditlog_storage_dir : child->auditlog_storage_dir);
merged->auditlog_parts = (child->auditlog_parts == NOT_SET_P
@ -667,6 +670,7 @@ void init_directory_config(directory_config *dcfg)
/* audit log variables */
if (dcfg->auditlog_flag == NOT_SET) dcfg->auditlog_flag = 0;
if (dcfg->auditlog_type == NOT_SET) dcfg->auditlog_type = AUDITLOG_SERIAL;
if (dcfg->auditlog_format == NOT_SET) dcfg->auditlog_format = AUDITLOGFORMAT_NATIVE;
if (dcfg->max_rule_time == NOT_SET) dcfg->max_rule_time = 0;
if (dcfg->auditlog_dirperms == NOT_SET) dcfg->auditlog_dirperms = CREATEMODE_DIR;
if (dcfg->auditlog_fileperms == NOT_SET) dcfg->auditlog_fileperms = CREATEMODE;
@ -1291,6 +1295,21 @@ static const char *cmd_audit_log_type(cmd_parms *cmd, void *_dcfg,
return NULL;
}
static const char *cmd_audit_log_mode(cmd_parms *cmd, void *_dcfg,
const char *p1)
{
directory_config *dcfg = _dcfg;
if (strcasecmp(p1, "JSON") == 0) dcfg->auditlog_format = AUDITLOGFORMAT_JSON;
else
if (strcasecmp(p1, "Native") == 0) dcfg->auditlog_format = AUDITLOGFORMAT_NATIVE;
else
return (const char *)apr_psprintf(cmd->pool,
"ModSecurity: Unrecognised parameter value for SecAuditLogFormat: %s", p1);
return NULL;
}
static const char *cmd_audit_log_dirmode(cmd_parms *cmd, void *_dcfg,
const char *p1)
{
@ -3232,6 +3251,14 @@ const command_rec module_directives[] = {
"whether to use the old audit log format (Serial) or new (Concurrent)"
),
AP_INIT_TAKE1 (
"SecAuditLogFormat",
cmd_audit_log_mode,
NULL,
CMD_SCOPE_ANY,
"whether to emit audit log data in native format or JSON"
),
AP_INIT_TAKE1 (
"SecAuditLogStorageDir",
cmd_audit_log_storage_dir,

3
apache2/modsecurity.h
View File

@ -519,6 +519,9 @@ struct directory_config {
/* AUDITLOG_SERIAL (single file) or AUDITLOG_CONCURRENT (multiple files) */
int auditlog_type;
/* AUDITLOGFORMAT_NATIVE or AUDITLOGFORMAT_JSON */
int auditlog_format;
/* Mode for audit log directories and files */
apr_fileperms_t auditlog_dirperms;
apr_fileperms_t auditlog_fileperms;

1116
apache2/msc_logging.c
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File diff suppressed because it is too large Load Diff

3
apache2/msc_logging.h
View File

@ -22,6 +22,9 @@
#define AUDITLOG_SERIAL 0
#define AUDITLOG_CONCURRENT 1
#define AUDITLOGFORMAT_JSON 0
#define AUDITLOGFORMAT_NATIVE 1
#define AUDITLOG_PART_FIRST 'A'
#define AUDITLOG_PART_HEADER 'A'
#define AUDITLOG_PART_REQUEST_HEADERS 'B'

18
configure.ac
View File

@ -275,22 +275,6 @@ if test "$build_docs" -eq 1; then
TOPLEVEL_SUBDIRS="$TOPLEVEL_SUBDIRS docs"
fi
# Add JSON audit logging
AC_ARG_ENABLE(json-logging,
AS_HELP_STRING([--enabled-json-logging],
[Enable JSON audit logging.]),
[
if test "$enableval" != "no"; then
json_logging='-DWITH_JSON_LOGGING'
MODSEC_EXTRA_CFLAGS="$MODSEC_EXTRA_CFLAGS $json_logging"
else
json_logging=''
fi
],
[
json_logging=''
])
# Add PCRE Studying
AC_ARG_ENABLE(pcre-study,
@ -674,7 +658,7 @@ else
fi
fi
MODSEC_EXTRA_CFLAGS="$json_logging $pcre_study $pcre_match_limit $pcre_match_limit_recursion $pcre_jit $request_early $htaccess_config $lua_cache $debug_conf $debug_cache $debug_acmp $debug_mem $perf_meas $modsec_api $cpu_type"
MODSEC_EXTRA_CFLAGS="$pcre_study $pcre_match_limit $pcre_match_limit_recursion $pcre_jit $request_early $htaccess_config $lua_cache $debug_conf $debug_cache $debug_acmp $debug_mem $perf_meas $modsec_api $cpu_type"
APXS_WRAPPER=build/apxs-wrapper
APXS_EXTRA_CFLAGS=""
for f in $EXTRA_CFLAGS; do