void
tcp_init_with_env()
{
char tmp[256];
const char* tcp_flags_cfg = getenv(DNSCORE_TCP_FLAGS);
if(tcp_flags_cfg != NULL)
{
strncpy(tmp, tcp_flags_cfg, sizeof(tmp)-1);
tmp[sizeof(tmp) - 1] = '\0';
size_t tmp_len = strlen(tmp);
for(int i = 0; i < tmp_len; i++)
{
if(tmp[i] == ',')
{
tmp[i] = ' ';
}
}
const char *p = parse_skip_spaces(tmp);
while(*p != '\0')
{
s32 keyword = -1;
s32 word_len = parse_skip_word_specific(p, strlen(p), tcp_env_keywords, 4, &keyword);
if(FAIL(word_len))
{
break;
}
switch(keyword)
{
case 0: // nodelay
tcp_nodelay = TRUE;
break;
case 1: // delay
tcp_nodelay = FALSE;
break;
case 2: // cork
tcp_cork = TRUE;
break;
case 3: // nocork
tcp_cork = FALSE;
break;
default:
osformatln(termerr, "syntax error in env %s", DNSCORE_TCP_FLAGS);
flusherr();
break;
}
p += word_len;
p = parse_skip_spaces(p);
}
}
}
void
zdb_init()
{
if(zdb_init_done)
{
return;
}
/* DO or DIE */
if(dnscore_getfingerprint() != (dnsdb_getfingerprint() & dnscore_fingerprint_mask()))
{
osformatln(termerr, "Mismatched fingerprints: %08x != (%08x = %08x & %08x)",
dnscore_getfingerprint(),
dnsdb_getfingerprint() & dnscore_fingerprint_mask(),
dnsdb_getfingerprint() , dnscore_fingerprint_mask());
flusherr();
exit(-1);
}
zdb_init_done = TRUE;
/* Init the dns core */
dnscore_init();
/* Init the error table */
zdb_register_errors();
/* Init the hash tables */
hash_init();
#if ZDB_OPENSSL_SUPPORT!=0
/* Init openssl */
ENGINE_load_openssl();
ENGINE_load_builtin_engines();
ssl_mutex_count = CRYPTO_num_locks();
MALLOC_OR_DIE(pthread_mutex_t*, ssl_mutex, ssl_mutex_count * sizeof (pthread_mutex_t), ZDB_SSLMUTEX_TAG);
int i;
for(i = 0; i < ssl_mutex_count; i++)
{
pthread_mutex_init(&ssl_mutex[i], NULL);
}
CRYPTO_set_id_callback(ssl_thread_id);
CRYPTO_set_locking_callback(ssl_lock);
#endif
#if ZDB_USE_THREADPOOL != 0
/*
* The default value for the database.
* This initialization will do nothing if it has already been done.
*
* The server will have to do it before calling zdb_init();
*
*/
u32 count = sys_get_cpu_count() + 2;
ya_result return_value = thread_pool_init(count);
if(FAIL(return_value))
{
log_crit("unable to initialise the thread pool to %d threads: %r", count, return_value); /* will ultimately lead to the end of the program */
exit(-1);
}
thread_pool_initialized_by_zdb = (return_value == count);
#endif
#if ZDB_USES_ZALLOC != 0
zdb_set_zowner(pthread_self());
#endif
logger_start();
zdb_rdtsc_registations();
}
static ya_result
config_section_handles_set_wild(struct config_section_descriptor_s *csd, const char *key, const char *value)
{
if(logger_channel_get_usage_count(key) >= 0)
{
return CONFIG_LOGGER_HANDLE_ALREADY_DEFINED; // already defined
}
char value_target[PATH_MAX];
parse_copy_word(value_target, sizeof(value_target), value);
if(strcasecmp("stdout", value_target) == 0)
{
output_stream stdout_os;
fd_output_stream_attach(&stdout_os, dup_ex(1));
logger_channel *stdout_channel = logger_channel_alloc();
logger_channel_stream_open(&stdout_os, FALSE, stdout_channel);
logger_channel_register(key, stdout_channel);
}
else if(strcasecmp("stderr", value_target) == 0)
{
output_stream stderr_os;
fd_output_stream_attach(&stderr_os, dup_ex(2));
logger_channel *stderr_channel = logger_channel_alloc();
logger_channel_stream_open(&stderr_os, FALSE, stderr_channel);
logger_channel_register(key, stderr_channel);
}
else if(strcasecmp("syslog", value_target) == 0)
{
char* token;
/*
* Tokenize
*/
u32 options = 0;
u32 facility = 0;
/* WARNING: NEVER EVER USE A CONST STRING AS ARGUMENT OR strtok WILL SIGSEGV */
char *tmp_value = strdup(value); // value, not value_target
for(token = strtok(tmp_value, SYSLOG_CHANNEL_TOKEN_DELIMITER);
token != NULL;
token = strtok(NULL, SYSLOG_CHANNEL_TOKEN_DELIMITER))
{
u32 token_value;
if(ISOK(get_value_from_casename(syslog_channel_arguments_options, token, &token_value)))
{
options |= token_value;
}
else if(ISOK(get_value_from_casename(syslog_channel_arguments_facility, token, &token_value)))
{
facility = token_value; // Facility is NOT a bit mask
}
else
{
/* Note: empty statement is taken care of here */
osformatln(termerr, "wrong syslog argument '%s' : ", csd->vtbl->name);
free(tmp_value);
return PARSE_INVALID_ARGUMENT;
}
}
free(tmp_value);
logger_channel *syslog_channel = logger_channel_alloc();
logger_channel_syslog_open(key, options, facility, syslog_channel);
logger_channel_register(key, syslog_channel);
}
else
{
const char *chroot_base = chroot_get_path();
uid_t uid = logger_get_uid();
gid_t gid = logger_get_gid();
ya_result return_code;
unsigned int access_rights;
char fullpath[PATH_MAX];
// find the end of the word
// cut it
const char *path_limit = parse_next_blank(value);
size_t path_len = path_limit - value;
size_t pathbase_len;
if(value[0] != '/')
{
pathbase_len = snformat(fullpath, sizeof(fullpath), "%s%s", chroot_base, log_path);
}
else
{
pathbase_len = snformat(fullpath, sizeof(fullpath), "%s", chroot_base);
}
if(pathbase_len + path_len + 1 >= sizeof(fullpath))
{
return CONFIG_FILE_PATH_TOO_BIG;
}
memcpy(&fullpath[pathbase_len], value, path_len);
path_len += pathbase_len;
fullpath[path_len] = '\0';
// parse the next word, it is supposed to be an octal number
if(sscanf(path_limit, "%o", &access_rights) != 1)
{
access_rights = FILE_CHANNEL_DEFAULT_ACCESS_RIGHTS;
}
// if the path starts with a slash, it's absolute, else it's relative
// to the log directory
logger_channel* file_channel = logger_channel_alloc();
if(FAIL(return_code = logger_channel_file_open(fullpath, uid, gid, access_rights, FALSE, file_channel)))
{
osformatln(termerr, "config: unable to open file channel '%s' (%d:%d %o) : %r", fullpath, uid, gid, access_rights, return_code);
flusherr();
return return_code;
}
logger_channel_register(key, file_channel);
}
return SUCCESS;
}