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Remove MAXBANS

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Needs proper stress testing but seems to work.
This commit is contained in:
Sally Coolatta 2022-06-06 16:28:50 -04:00 • committed by toaster
parent f571e559d4
commit 118eb0b3dd
2 changed files with 65 additions and 27 deletions
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4
src/d_clisrv.c
View file

@ -2524,7 +2524,7 @@ static void Command_Ban(void)
{
if (COM_Argc() < 2)
{
CONS_Printf(M_GetText("Ban <playername/playernum> <reason>: ban and kick a player\n"));
CONS_Printf(M_GetText("ban <playername/playernum> <reason>: ban and kick a player\n"));
return;
}
@ -2548,7 +2548,7 @@ static void Command_Ban(void)
if (server && I_Ban && !I_Ban(node)) // only the server is allowed to do this right now
{
CONS_Alert(CONS_WARNING, M_GetText("Too many bans! Geez, that's a lot of people you're excluding...\n"));
CONS_Alert(CONS_WARNING, M_GetText("Ban failed. Invalid node?\n"));
WRITEUINT8(p, KICK_MSG_GO_AWAY);
SendNetXCmd(XD_KICK, &buf, 2);
}

88
src/i_tcp.c
View file

@ -138,8 +138,6 @@
#endif // !NONET
#define MAXBANS 100
#include "i_system.h"
#include "i_net.h"
#include "d_net.h"
@ -147,6 +145,7 @@
#include "i_tcp.h"
#include "m_argv.h"
#include "stun.h"
#include "z_zone.h"
#include "doomstat.h"
@ -196,12 +195,14 @@
static mysockaddr_t broadcastaddress[MAXNETNODES+1];
static size_t broadcastaddresses = 0;
static boolean nodeconnected[MAXNETNODES+1];
static mysockaddr_t banned[MAXBANS];
static UINT8 bannedmask[MAXBANS];
static mysockaddr_t *banned;
static UINT8 *bannedmask;
static const INT32 hole_punch_magic = MSBF_LONG (0x52eb11);
#endif
static size_t numbans = 0;
static size_t banned_size = 0;
static boolean SOCK_bannednode[MAXNETNODES+1]; /// \note do we really need the +1?
static boolean init_tcp_driver = false;
@ -1423,6 +1424,39 @@ static boolean SOCK_OpenSocket(void)
#endif
}
static void AddBannedIndex(void)
{
if (numbans >= banned_size)
{
if (banned_size == 0)
{
banned_size = 128;
}
else
{
banned_size *= 2;
}
banned = Z_ReallocAlign(
(void*) banned,
sizeof(mysockaddr_t) * banned_size,
PU_STATIC,
NULL,
sizeof(mysockaddr_t) * 8
);
bannedmask = Z_ReallocAlign(
(void*) banned,
sizeof(UINT8) * banned_size,
PU_STATIC,
NULL,
sizeof(UINT8) * 8
);
}
numbans++;
}
static boolean SOCK_Ban(INT32 node)
{
if (node > MAXNETNODES)
@ -1430,23 +1464,23 @@ static boolean SOCK_Ban(INT32 node)
#ifdef NONET
return false;
#else
if (numbans == MAXBANS)
return false;
M_Memcpy(&banned[numbans], &clientaddress[node], sizeof (mysockaddr_t));
if (banned[numbans].any.sa_family == AF_INET)
AddBannedIndex();
M_Memcpy(&banned[numbans-1], &clientaddress[node], sizeof (mysockaddr_t));
if (banned[numbans-1].any.sa_family == AF_INET)
{
banned[numbans].ip4.sin_port = 0;
bannedmask[numbans] = 32;
banned[numbans-1].ip4.sin_port = 0;
bannedmask[numbans-1] = 32;
}
#ifdef HAVE_IPV6
else if (banned[numbans].any.sa_family == AF_INET6)
else if (banned[numbans-1].any.sa_family == AF_INET6)
{
banned[numbans].ip6.sin6_port = 0;
bannedmask[numbans] = 128;
banned[numbans-1].ip6.sin6_port = 0;
bannedmask[numbans-1] = 128;
}
#endif
numbans++;
return true;
#endif
}
@ -1461,7 +1495,7 @@ static boolean SOCK_SetBanAddress(const char *address, const char *mask)
struct my_addrinfo *ai, *runp, hints;
int gaie;
if (numbans == MAXBANS || !address)
if (!address)
return false;
memset(&hints, 0x00, sizeof(hints));
@ -1476,26 +1510,27 @@ static boolean SOCK_SetBanAddress(const char *address, const char *mask)
runp = ai;
while(runp != NULL && numbans != MAXBANS)
while (runp != NULL)
{
memcpy(&banned[numbans], runp->ai_addr, runp->ai_addrlen);
AddBannedIndex();
memcpy(&banned[numbans-1], runp->ai_addr, runp->ai_addrlen);
if (mask)
bannedmask[numbans] = (UINT8)atoi(mask);
bannedmask[numbans-1] = (UINT8)atoi(mask);
#ifdef HAVE_IPV6
else if (runp->ai_family == AF_INET6)
bannedmask[numbans] = 128;
bannedmask[numbans-1] = 128;
#endif
else
bannedmask[numbans] = 32;
bannedmask[numbans-1] = 32;
if (bannedmask[numbans] > 32 && runp->ai_family == AF_INET)
bannedmask[numbans] = 32;
if (bannedmask[numbans-1] > 32 && runp->ai_family == AF_INET)
bannedmask[numbans-1] = 32;
#ifdef HAVE_IPV6
else if (bannedmask[numbans] > 128 && runp->ai_family == AF_INET6)
bannedmask[numbans] = 128;
else if (bannedmask[numbans-1] > 128 && runp->ai_family == AF_INET6)
bannedmask[numbans-1] = 128;
#endif
numbans++;
runp = runp->ai_next;
}
@ -1508,6 +1543,9 @@ static boolean SOCK_SetBanAddress(const char *address, const char *mask)
static void SOCK_ClearBans(void)
{
numbans = 0;
banned_size = 0;
banned = NULL;
bannedmask = NULL;
}
boolean I_InitTcpNetwork(void)