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make local command ip address checking sane

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This commit is contained in:
Bill Currie 2004-04-12 23:38:09 +00:00
parent e148880ec6
commit 8fdd8a0888
4 changed files with 10 additions and 4 deletions
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1
include/netchan.h
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@ -51,6 +51,7 @@ typedef struct
} netadr_t;
extern netadr_t net_local_adr;
extern netadr_t net_loopback_adr;
extern netadr_t net_from; // address of who sent the packet
extern struct msg_s *net_message;

4
libs/net/nc/net_udp.c
View file

@ -98,6 +98,7 @@ static __attribute__ ((unused)) const char rcsid[] =
int net_socket;
netadr_t net_local_adr;
netadr_t net_loopback_adr;
netadr_t net_from;
static sizebuf_t _net_message_message;
@ -418,6 +419,9 @@ NET_Init (int port)
// determine my name & address
NET_GetLocalAddress ();
net_loopback_adr.ip[0] = 127;
net_loopback_adr.ip[3] = 1;
Con_Printf ("UDP (IPv4) Initialized\n");
}

2
libs/net/nc/net_udp6.c
View file

@ -550,6 +550,8 @@ NET_Init (int port)
// determine my name & address
NET_GetLocalAddress ();
net_loopback_adr.ip[15] = 1;
Con_Printf ("UDP (IPv6) Initialized\n");
}

7
qw/source/cl_main.c
View file

@ -861,10 +861,9 @@ CL_ConnectionlessPacket (void)
Con_Printf ("client command\n");
if (!cl_allow_cmd_pkt->int_val ||
((*(unsigned int *) net_from.ip !=
*(unsigned int *) net_local_adr.ip &&
*(unsigned int *) net_from.ip != htonl (INADDR_LOOPBACK)))) {
if (!cl_allow_cmd_pkt->int_val
|| !NET_CompareBaseAdr (net_from, net_local_adr)
|| !NET_CompareBaseAdr (net_from, net_loopback_adr)) {
Con_Printf ("Command packet from remote host. Ignored.\n");
return;
}