anonfunc/xtables-addons
1
0
Fork 0
mirror of git://git.code.sf.net/p/xtables-addons/xtables-addons synced 2025-09-07 13:15:12 +02:00
Code Issues Releases Wiki Activity

ipp2p: internally simplify selecting protocol searches

Browse Source
This commit is contained in:
Jan Engelhardt
2008-03-26 07:53:10 +01:00
parent 0712d0fdca
commit a1d307e336
3 changed files with 85 additions and 210 deletions
Download Patch File Download Diff File Expand all files Collapse all files

188
extensions/libxt_ipp2p.c
View File

@@ -11,7 +11,6 @@ static void ipp2p_mt_help(void)
{
printf(
"IPP2P v%s options:\n"
" --ipp2p Grab all known p2p packets\n"
" --edk [tcp,udp] All known eDonkey/eMule/Overnet packets\n"
" --dc [tcp] All known Direct Connect packets\n"
" --kazaa [tcp,udp] All known KaZaA packets\n"
@@ -27,8 +26,6 @@ static void ipp2p_mt_help(void)
" --xdcc [tcp] All known XDCC packets (only xdcc login)\n\n"
"DEBUG SUPPPORT, use only if you know why\n"
" --debug Generate kernel debug output, THIS WILL SLOW DOWN THE FILTER\n"
"\nNote that the follwing options will have the same meaning:\n"
" '--ipp2p' is equal to '--edk --dc --kazaa --gnu --bit --apple --winmx --soul --ares'\n"
"\nIPP2P was intended for TCP only. Due to increasing usage of UDP we needed to change this.\n"
"You can now use -p udp to search UDP packets only or without -p switch to search UDP and TCP packets.\n"
"\nSee README included with this package for more details or visit http://www.ipp2p.org\n"
@@ -40,7 +37,6 @@ static void ipp2p_mt_help(void)
}
static const struct option ipp2p_mt_opts[] = {
{ "ipp2p", 0, 0, '1' },
{ "edk", 0, 0, '2' },
{ "dc", 0, 0, '7' },
{ "gnu", 0, 0, '9' },
@@ -63,37 +59,11 @@ static int ipp2p_mt_parse(int c, char **argv, int invert, unsigned int *flags,
struct ipt_p2p_info *info = (struct ipt_p2p_info *)(*match)->data;
switch (c) {
case '1': /*cmd: ipp2p*/
if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p' may only be "
"specified once!");
/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p-data' may only be "
"specified alone!");*/
if ((*flags) != 0)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p' may only be "
"specified alone!");
if (invert) exit_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!");
*flags += SHORT_HAND_IPP2P;
info->cmd = *flags;
break;
case '2': /*cmd: edk*/
if ((*flags & IPP2P_EDK) == IPP2P_EDK)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--edk' may only be "
"specified once");
if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p' may only be "
"specified alone!");
/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p-data' may only be "
"specified alone!");*/
if ((*flags & IPP2P_DATA_EDK) == IPP2P_DATA_EDK)
exit_error(PARAMETER_PROBLEM,
"ipp2p: use `--edk' OR `--edk-data' but not both of them!");
@@ -107,14 +77,6 @@ static int ipp2p_mt_parse(int c, char **argv, int invert, unsigned int *flags,
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--dc' may only be "
"specified once!");
if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p' may only be "
"specified alone!");
/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p-data' may only be "
"specified alone!");*/
if ((*flags & IPP2P_DATA_DC) == IPP2P_DATA_DC)
exit_error(PARAMETER_PROBLEM,
"ipp2p: use `--dc' OR `--dc-data' but not both of them!");
@@ -128,14 +90,6 @@ static int ipp2p_mt_parse(int c, char **argv, int invert, unsigned int *flags,
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--gnu' may only be "
"specified once!");
/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p-data' may only be "
"specified alone!");*/
if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p' may only be "
"specified alone!");
if ((*flags & IPP2P_DATA_GNU) == IPP2P_DATA_GNU)
exit_error(PARAMETER_PROBLEM,
"ipp2p: use `--gnu' OR `--gnu-data' but not both of them!");
@@ -149,14 +103,6 @@ static int ipp2p_mt_parse(int c, char **argv, int invert, unsigned int *flags,
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--kazaa' may only be "
"specified once!");
/* if ((*flags & SHORT_HAND_DATA) == SHORT_HAND_DATA)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p-data' may only be "
"specified alone!");*/
if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p' may only be "
"specified alone!");
if ((*flags & IPP2P_DATA_KAZAA) == IPP2P_DATA_KAZAA)
exit_error(PARAMETER_PROBLEM,
"ipp2p: use `--kazaa' OR `--kazaa-data' but not both of them!");
@@ -170,11 +116,6 @@ static int ipp2p_mt_parse(int c, char **argv, int invert, unsigned int *flags,
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--bit' may only be "
"specified once!");
if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p' may only be "
"specified alone!");
if (invert) exit_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!");
*flags += IPP2P_BIT;
info->cmd = *flags;
break;
@@ -184,10 +125,6 @@ static int ipp2p_mt_parse(int c, char **argv, int invert, unsigned int *flags,
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--apple' may only be "
"specified once!");
if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p' may only be "
"specified alone!");
if (invert) exit_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!");
*flags += IPP2P_APPLE;
info->cmd = *flags;
@@ -198,10 +135,6 @@ static int ipp2p_mt_parse(int c, char **argv, int invert, unsigned int *flags,
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--soul' may only be "
"specified once!");
if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p' may only be "
"specified alone!");
if (invert) exit_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!");
*flags += IPP2P_SOUL;
info->cmd = *flags;
@@ -212,10 +145,6 @@ static int ipp2p_mt_parse(int c, char **argv, int invert, unsigned int *flags,
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--winmx' may only be "
"specified once!");
if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p' may only be "
"specified alone!");
if (invert) exit_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!");
*flags += IPP2P_WINMX;
info->cmd = *flags;
@@ -226,10 +155,6 @@ static int ipp2p_mt_parse(int c, char **argv, int invert, unsigned int *flags,
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ares' may only be "
"specified once!");
if ((*flags & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P)
exit_error(PARAMETER_PROBLEM,
"ipp2p: `--ipp2p' may only be "
"specified alone!");
if (invert) exit_error(PARAMETER_PROBLEM, "ipp2p: invert [!] is not allowed!");
*flags += IPP2P_ARES;
info->cmd = *flags;
@@ -283,104 +208,43 @@ static void ipp2p_mt_check(unsigned int flags)
"\nipp2p-parameter problem: for ipp2p usage type: iptables -m ipp2p --help\n");
}
static const char *const ipp2p_cmds[] = {
[IPP2N_EDK] = "--edk",
[IPP2N_DATA_KAZAA] = "--kazaa-data",
[IPP2N_DATA_EDK] = "--edk-data",
[IPP2N_DATA_DC] = "--dc-data",
[IPP2N_DC] = "--dc",
[IPP2N_DATA_GNU] = "--gnu-data",
[IPP2N_GNU] = "--gnu",
[IPP2N_KAZAA] = "--kazaa",
[IPP2N_BIT] = "--bit",
[IPP2N_APPLE] = "--apple",
[IPP2N_SOUL] = "--soul",
[IPP2N_WINMX] = "--winmx",
[IPP2N_ARES] = "--ares",
[IPP2N_MUTE] = "--mute",
[IPP2N_WASTE] = "--waste",
[IPP2N_XDCC] = "--xdcc",
};
static void
ipp2p_mt_print(const void *entry, const struct xt_entry_match *match,
int numeric)
{
const struct ipt_p2p_info *info = (const void *)match->data;
unsigned int i;
for (i = IPP2N_EDK; i <= IPP2N_XDCC; ++i)
if (info->cmd & (1 << i))
printf("%s ", ipp2p_cmds[i]);
printf("ipp2p v%s", IPP2P_VERSION);
if ((info->cmd & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P)
printf(" --ipp2p");
/*
if ((info->cmd & SHORT_HAND_DATA) == SHORT_HAND_DATA)
printf(" --ipp2p-data");
*/
if ((info->cmd & IPP2P_KAZAA) == IPP2P_KAZAA)
printf(" --kazaa");
/*
if ((info->cmd & IPP2P_DATA_KAZAA) == IPP2P_DATA_KAZAA)
printf(" --kazaa-data");
if ((info->cmd & IPP2P_DATA_GNU) == IPP2P_DATA_GNU)
printf(" --gnu-data");
*/
if ((info->cmd & IPP2P_GNU) == IPP2P_GNU) printf(" --gnu");
if ((info->cmd & IPP2P_EDK) == IPP2P_EDK) printf(" --edk");
/*
if ((info->cmd & IPP2P_DATA_EDK) == IPP2P_DATA_EDK)
printf(" --edk-data");
if ((info->cmd & IPP2P_DATA_DC) == IPP2P_DATA_DC)
printf(" --dc-data");
*/
if ((info->cmd & IPP2P_DC) == IPP2P_DC)
printf(" --dc");
if ((info->cmd & IPP2P_BIT) == IPP2P_BIT)
printf(" --bit");
if ((info->cmd & IPP2P_APPLE) == IPP2P_APPLE)
printf(" --apple");
if ((info->cmd & IPP2P_SOUL) == IPP2P_SOUL)
printf(" --soul");
if ((info->cmd & IPP2P_WINMX) == IPP2P_WINMX)
printf(" --winmx");
if ((info->cmd & IPP2P_ARES) == IPP2P_ARES)
printf(" --ares");
if ((info->cmd & IPP2P_MUTE) == IPP2P_MUTE)
printf(" --mute");
if ((info->cmd & IPP2P_WASTE) == IPP2P_WASTE)
printf(" --waste");
if ((info->cmd & IPP2P_XDCC) == IPP2P_XDCC)
printf(" --xdcc");
if (info->debug != 0)
printf(" --debug");
printf(" ");
printf("--debug ");
}
static void ipp2p_mt_save(const void *entry, const struct xt_entry_match *match)
{
const struct ipt_p2p_info *info = (const void *)match->data;
if ((info->cmd & SHORT_HAND_IPP2P) == SHORT_HAND_IPP2P)
printf("--ipp2p ");
/*
if ((info->cmd & SHORT_HAND_DATA) == SHORT_HAND_DATA)
printf("--ipp2p-data ");
*/
if ((info->cmd & IPP2P_KAZAA) == IPP2P_KAZAA)
printf("--kazaa ");
/* if ((info->cmd & IPP2P_DATA_KAZAA) == IPP2P_DATA_KAZAA)
printf("--kazaa-data ");
if ((info->cmd & IPP2P_DATA_GNU) == IPP2P_DATA_GNU)
printf("--gnu-data ");
*/
if ((info->cmd & IPP2P_GNU) == IPP2P_GNU)
printf("--gnu ");
if ((info->cmd & IPP2P_EDK) == IPP2P_EDK)
printf("--edk ");
/* if ((info->cmd & IPP2P_DATA_EDK) == IPP2P_DATA_EDK)
printf("--edk-data ");
if ((info->cmd & IPP2P_DATA_DC) == IPP2P_DATA_DC)
printf("--dc-data ");
*/
if ((info->cmd & IPP2P_DC) == IPP2P_DC)
printf("--dc ");
if ((info->cmd & IPP2P_BIT) == IPP2P_BIT)
printf("--bit ");
if ((info->cmd & IPP2P_APPLE) == IPP2P_APPLE)
printf("--apple ");
if ((info->cmd & IPP2P_SOUL) == IPP2P_SOUL)
printf("--soul ");
if ((info->cmd & IPP2P_WINMX) == IPP2P_WINMX)
printf("--winmx ");
if ((info->cmd & IPP2P_ARES) == IPP2P_ARES)
printf("--ares ");
if ((info->cmd & IPP2P_MUTE) == IPP2P_MUTE)
printf(" --mute");
if ((info->cmd & IPP2P_WASTE) == IPP2P_WASTE)
printf(" --waste");
if ((info->cmd & IPP2P_XDCC) == IPP2P_XDCC)
printf(" --xdcc");
if (info->debug != 0)
printf("--debug ");
ipp2p_mt_print(entry, match, true);
}
static struct xtables_match ipp2p_mt_reg = {