/* part of report class dtor */
static void Report(struct NaClApp *nap)
{
GString *report = g_string_sized_new(BIG_ENOUGH_STRING);
char *eol = hide_report ? "; " : "\n";
/* report validator state and user return code */
g_string_append_printf(report, "%s%d%s", REPORT_VALIDATOR, validation_state, eol);
g_string_append_printf(report, "%s%d%s", REPORT_RETCODE, user_code, eol);
/* add memory digest to cumulative digests if asked */
if(nap != NULL && nap->manifest != NULL)
if(nap->manifest->mem_tag != NULL)
ReportTag(STDRAM, GetMemoryDigest(nap));
/* report tags digests and remove ending " " if exist */
g_string_append_printf(report, "%s", REPORT_ETAG);
g_string_append_printf(report, "%s", digests->len == 0
? TAG_ENGINE_DISABLED : digests->str);
g_string_truncate(report, report->len - 1);
/* report accounting and session message */
g_string_append_printf(report, "%s%s%s%s", eol, REPORT_ACCOUNTING, GetAccountingInfo(), eol);
g_string_append_printf(report, "%s%s%s", REPORT_STATE, zvm_state, eol);
/* output report */
if(hide_report)
ZLOGS(LOG_ERROR, "%s", report->str);
else
ZLOGIF(write(STDOUT_FILENO, report->str, report->len) != report->len,
"report write error %d: %s", errno, strerror(errno));
g_string_free(report, TRUE);
g_string_free(digests, TRUE);
}
int ProxyReport(struct NaClApp *nap)
{
char report[BIG_ENOUGH_STRING];
char etag[TAG_DIGEST_SIZE] = TAG_ENGINE_DISABLED;
int length;
int i;
assert(nap != NULL);
assert(nap->system_manifest != NULL);
/* tag user memory / channels if session successful */
if(TagEngineEnabled())
{
if(CHANNELS_ETAG_ENABLED) ChannelsDigest(nap);
if(MEMORY_ETAG_ENABLED) EtagMemoryChunk(nap);
TagDigest(nap->user_tag, etag);
TagDtor(nap->user_tag);
}
/* for debugging purposes it is useful to see more advanced information */
#ifdef DEBUG
length = g_snprintf(report, BIG_ENOUGH_STRING,
"validator state = %d\nuser return code = %d\netag = %s\naccounting = %s\n"
"exit state = %s\n", nap->validation_state,
nap->system_manifest->user_ret_code, etag, GetAccountingInfo(), GetExitState());
#else
/* .. but for production zvm will switch to more brief output */
length = g_snprintf(report, BIG_ENOUGH_STRING, "%d\n%d\n%s\n%s\n%s\n",
nap->validation_state, nap->system_manifest->user_ret_code,
etag, GetAccountingInfo(), GetExitState());
#endif
/* give the report to proxy */
i = write(STDOUT_FILENO, report, length);
/* log the report */
length = g_snprintf(report, BIG_ENOUGH_STRING,
"validator state = %d, user return code = %d, etag = %s, accounting = %s, "
"exit state = %s", nap->validation_state,
nap->system_manifest->user_ret_code, etag, GetAccountingInfo(), GetExitState());
ZLOGS(LOG_DEBUG, "%s", report);
return i == length ? 0 : -1;
}