zapret/nfq/params.c

233 lines
5.8 KiB
C
Raw Normal View History

2024-08-23 11:42:21 +00:00
#include "params.h"
2024-09-17 16:57:21 +00:00
2024-08-23 11:42:21 +00:00
#include <stdarg.h>
#include <syslog.h>
#include <errno.h>
2024-09-17 16:57:21 +00:00
#include "pools.h"
#include "desync.h"
2024-08-23 11:42:21 +00:00
#ifdef BSD
const char *progname = "dvtws";
#elif defined(__CYGWIN__)
const char *progname = "winws";
#elif defined(__linux__)
const char *progname = "nfqws";
#else
#error UNKNOWN_SYSTEM_TIME
#endif
int DLOG_FILE(FILE *F, const char *format, va_list args)
{
return vfprintf(F, format, args);
}
int DLOG_CON(const char *format, int syslog_priority, va_list args)
{
return DLOG_FILE(syslog_priority==LOG_ERR ? stderr : stdout, format, args);
}
int DLOG_FILENAME(const char *filename, const char *format, va_list args)
{
int r;
FILE *F = fopen(filename,"at");
if (F)
{
r = DLOG_FILE(F, format, args);
fclose(F);
}
else
r=-1;
return r;
}
static char syslog_buf[1024];
static size_t syslog_buf_sz=0;
static void syslog_buffered(int priority, const char *format, va_list args)
{
if (vsnprintf(syslog_buf+syslog_buf_sz,sizeof(syslog_buf)-syslog_buf_sz,format,args)>0)
{
syslog_buf_sz=strlen(syslog_buf);
// log when buffer is full or buffer ends with \n
if (syslog_buf_sz>=(sizeof(syslog_buf)-1) || (syslog_buf_sz && syslog_buf[syslog_buf_sz-1]=='\n'))
{
syslog(priority,"%s",syslog_buf);
syslog_buf_sz = 0;
}
}
}
static int DLOG_VA(const char *format, int syslog_priority, bool condup, va_list args)
{
int r=0;
va_list args2;
if (condup && !(params.debug && params.debug_target==LOG_TARGET_CONSOLE))
{
va_copy(args2,args);
DLOG_CON(format,syslog_priority,args2);
}
if (params.debug)
{
switch(params.debug_target)
{
case LOG_TARGET_CONSOLE:
r = DLOG_CON(format,syslog_priority,args);
break;
case LOG_TARGET_FILE:
r = DLOG_FILENAME(params.debug_logfile,format,args);
break;
case LOG_TARGET_SYSLOG:
// skip newlines
syslog_buffered(syslog_priority,format,args);
r = 1;
break;
default:
break;
}
}
return r;
}
int DLOG(const char *format, ...)
{
int r;
va_list args;
va_start(args, format);
r = DLOG_VA(format, LOG_DEBUG, false, args);
va_end(args);
return r;
}
int DLOG_CONDUP(const char *format, ...)
{
int r;
va_list args;
va_start(args, format);
r = DLOG_VA(format, LOG_DEBUG, true, args);
va_end(args);
return r;
}
int DLOG_ERR(const char *format, ...)
{
int r;
va_list args;
va_start(args, format);
r = DLOG_VA(format, LOG_ERR, true, args);
va_end(args);
return r;
}
int DLOG_PERROR(const char *s)
{
return DLOG_ERR("%s: %s\n", s, strerror(errno));
}
int LOG_APPEND(const char *filename, const char *format, va_list args)
{
int r;
FILE *F = fopen(filename,"at");
if (F)
{
fprint_localtime(F);
fprintf(F, " : ");
r = vfprintf(F, format, args);
fprintf(F, "\n");
fclose(F);
}
else
r=-1;
return r;
}
int HOSTLIST_DEBUGLOG_APPEND(const char *format, ...)
{
if (*params.hostlist_auto_debuglog)
{
int r;
va_list args;
va_start(args, format);
r = LOG_APPEND(params.hostlist_auto_debuglog, format, args);
va_end(args);
return r;
}
else
return 0;
}
2024-09-17 16:57:21 +00:00
struct desync_profile_list *dp_list_add(struct desync_profile_list_head *head)
{
struct desync_profile_list *entry = calloc(1,sizeof(struct desync_profile_list));
if (!entry) return NULL;
LIST_INIT(&entry->dp.hostlist_files);
LIST_INIT(&entry->dp.hostlist_exclude_files);
memcpy(entry->dp.hostspell, "host", 4); // default hostspell
entry->dp.desync_skip_nosni = true;
entry->dp.desync_split_pos = 2;
entry->dp.desync_ipfrag_pos_udp = IPFRAG_UDP_DEFAULT;
entry->dp.desync_ipfrag_pos_tcp = IPFRAG_TCP_DEFAULT;
entry->dp.desync_repeats = 1;
entry->dp.fake_tls_size = sizeof(fake_tls_clienthello_default);
memcpy(entry->dp.fake_tls,fake_tls_clienthello_default,entry->dp.fake_tls_size);
randomize_default_tls_payload(entry->dp.fake_tls);
entry->dp.fake_http_size = strlen(fake_http_request_default);
memcpy(entry->dp.fake_http,fake_http_request_default,entry->dp.fake_http_size);
entry->dp.fake_quic_size = 620; // must be 601+ for TSPU hack
entry->dp.fake_quic[0] = 0x40; // russian TSPU QUIC short header fake
entry->dp.fake_wg_size = 64;
entry->dp.fake_dht_size = 64;
entry->dp.fake_unknown_size = 256;
entry->dp.fake_syndata_size = 16;
entry->dp.fake_unknown_udp_size = 64;
entry->dp.wscale=-1; // default - dont change scale factor (client)
entry->dp.desync_ttl6 = 0xFF; // unused
entry->dp.desync_badseq_increment = BADSEQ_INCREMENT_DEFAULT;
entry->dp.desync_badseq_ack_increment = BADSEQ_ACK_INCREMENT_DEFAULT;
entry->dp.wssize_cutoff_mode = entry->dp.desync_start_mode = entry->dp.desync_cutoff_mode = 'n'; // packet number by default
entry->dp.udplen_increment = UDPLEN_INCREMENT_DEFAULT;
entry->dp.hostlist_auto_fail_threshold = HOSTLIST_AUTO_FAIL_THRESHOLD_DEFAULT;
entry->dp.hostlist_auto_fail_time = HOSTLIST_AUTO_FAIL_TIME_DEFAULT;
entry->dp.hostlist_auto_retrans_threshold = HOSTLIST_AUTO_RETRANS_THRESHOLD_DEFAULT;
entry->dp.filter_ipv4 = entry->dp.filter_ipv6 = true;
// add to the tail
struct desync_profile_list *dpn,*dpl=LIST_FIRST(&params.desync_profiles);
if (dpl)
{
while ((dpn=LIST_NEXT(dpl,next))) dpl = dpn;
LIST_INSERT_AFTER(dpl, entry, next);
}
else
LIST_INSERT_HEAD(&params.desync_profiles, entry, next);
return entry;
}
static void dp_entry_destroy(struct desync_profile_list *entry)
{
strlist_destroy(&entry->dp.hostlist_files);
strlist_destroy(&entry->dp.hostlist_exclude_files);
StrPoolDestroy(&entry->dp.hostlist_exclude);
StrPoolDestroy(&entry->dp.hostlist);
HostFailPoolDestroy(&entry->dp.hostlist_auto_fail_counters);
free(entry);
}
void dp_list_destroy(struct desync_profile_list_head *head)
{
struct desync_profile_list *entry;
while ((entry = LIST_FIRST(head)))
{
LIST_REMOVE(entry, next);
dp_entry_destroy(entry);
}
}
bool dp_list_have_autohostlist(struct desync_profile_list_head *head)
{
struct desync_profile_list *dpl;
LIST_FOREACH(dpl, head, next)
if (*dpl->dp.hostlist_auto_filename)
return true;
return false;
}