Drop IPX and Apple Talk support for 5.15

This commit is contained in:
Rin Cat (鈴猫) 2021-12-04 08:03:57 -05:00
parent c0e109d401
commit f4d598d634
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GPG Key ID: 40DCF18E97150795

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@ -17,8 +17,6 @@
#ifdef __KERNEL__ #ifdef __KERNEL__
#include <linux/if_arp.h> #include <linux/if_arp.h>
#include <net/ip.h> #include <net/ip.h>
#include <net/ipx.h>
#include <linux/atalk.h>
#include <linux/udp.h> #include <linux/udp.h>
#include <linux/if_pppox.h> #include <linux/if_pppox.h>
#endif #endif
@ -57,8 +55,6 @@
#define NAT25_IPV4 01 #define NAT25_IPV4 01
#define NAT25_IPV6 02 #define NAT25_IPV6 02
#define NAT25_IPX 03
#define NAT25_APPLE 04
#define NAT25_PPPOE 05 #define NAT25_PPPOE 05
#define RTL_RELAY_TAG_LEN (ETH_ALEN) #define RTL_RELAY_TAG_LEN (ETH_ALEN)
@ -169,39 +165,6 @@ static __inline__ void __nat25_generate_ipv4_network_addr(unsigned char *network
} }
static __inline__ void __nat25_generate_ipx_network_addr_with_node(unsigned char *networkAddr,
unsigned int *ipxNetAddr, unsigned char *ipxNodeAddr)
{
memset(networkAddr, 0, MAX_NETWORK_ADDR_LEN);
networkAddr[0] = NAT25_IPX;
memcpy(networkAddr + 1, (unsigned char *)ipxNetAddr, 4);
memcpy(networkAddr + 5, ipxNodeAddr, 6);
}
static __inline__ void __nat25_generate_ipx_network_addr_with_socket(unsigned char *networkAddr,
unsigned int *ipxNetAddr, unsigned short *ipxSocketAddr)
{
memset(networkAddr, 0, MAX_NETWORK_ADDR_LEN);
networkAddr[0] = NAT25_IPX;
memcpy(networkAddr + 1, (unsigned char *)ipxNetAddr, 4);
memcpy(networkAddr + 5, (unsigned char *)ipxSocketAddr, 2);
}
static __inline__ void __nat25_generate_apple_network_addr(unsigned char *networkAddr,
unsigned short *network, unsigned char *node)
{
memset(networkAddr, 0, MAX_NETWORK_ADDR_LEN);
networkAddr[0] = NAT25_APPLE;
memcpy(networkAddr + 1, (unsigned char *)network, 2);
networkAddr[3] = *node;
}
static __inline__ void __nat25_generate_pppoe_network_addr(unsigned char *networkAddr, static __inline__ void __nat25_generate_pppoe_network_addr(unsigned char *networkAddr,
unsigned char *ac_mac, unsigned short *sid) unsigned char *ac_mac, unsigned short *sid)
{ {
@ -329,19 +292,6 @@ static __inline__ int __nat25_network_hash(unsigned char *networkAddr)
x = networkAddr[7] ^ networkAddr[8] ^ networkAddr[9] ^ networkAddr[10]; x = networkAddr[7] ^ networkAddr[8] ^ networkAddr[9] ^ networkAddr[10];
return x & (NAT25_HASH_SIZE - 1);
} else if (networkAddr[0] == NAT25_IPX) {
unsigned long x;
x = networkAddr[1] ^ networkAddr[2] ^ networkAddr[3] ^ networkAddr[4] ^ networkAddr[5] ^
networkAddr[6] ^ networkAddr[7] ^ networkAddr[8] ^ networkAddr[9] ^ networkAddr[10];
return x & (NAT25_HASH_SIZE - 1);
} else if (networkAddr[0] == NAT25_APPLE) {
unsigned long x;
x = networkAddr[1] ^ networkAddr[2] ^ networkAddr[3];
return x & (NAT25_HASH_SIZE - 1); return x & (NAT25_HASH_SIZE - 1);
} else if (networkAddr[0] == NAT25_PPPOE) { } else if (networkAddr[0] == NAT25_PPPOE) {
unsigned long x; unsigned long x;
@ -889,226 +839,6 @@ int nat25_db_handle(_adapter *priv, struct sk_buff *skb, int method)
} }
} }
/*---------------------------------------------------*/
/* Handle IPX and Apple Talk frame */
/*---------------------------------------------------*/
else if ((protocol == __constant_htons(ETH_P_IPX)) ||
(protocol == __constant_htons(ETH_P_ATALK)) ||
(protocol == __constant_htons(ETH_P_AARP))) {
unsigned char ipx_header[2] = {0xFF, 0xFF};
struct ipxhdr *ipx = NULL;
struct elapaarp *ea = NULL;
struct ddpehdr *ddp = NULL;
unsigned char *framePtr = skb->data + ETH_HLEN;
if (protocol == __constant_htons(ETH_P_IPX)) {
RTW_INFO("NAT25: Protocol=IPX (Ethernet II)\n");
ipx = (struct ipxhdr *)framePtr;
} else { /* if(protocol <= __constant_htons(ETH_FRAME_LEN)) */
if (!memcmp(ipx_header, framePtr, 2)) {
RTW_INFO("NAT25: Protocol=IPX (Ethernet 802.3)\n");
ipx = (struct ipxhdr *)framePtr;
} else {
unsigned char ipx_8022_type = 0xE0;
unsigned char snap_8022_type = 0xAA;
if (*framePtr == snap_8022_type) {
unsigned char ipx_snap_id[5] = {0x0, 0x0, 0x0, 0x81, 0x37}; /* IPX SNAP ID */
unsigned char aarp_snap_id[5] = {0x00, 0x00, 0x00, 0x80, 0xF3}; /* Apple Talk AARP SNAP ID */
unsigned char ddp_snap_id[5] = {0x08, 0x00, 0x07, 0x80, 0x9B}; /* Apple Talk DDP SNAP ID */
framePtr += 3; /* eliminate the 802.2 header */
if (!memcmp(ipx_snap_id, framePtr, 5)) {
framePtr += 5; /* eliminate the SNAP header */
RTW_INFO("NAT25: Protocol=IPX (Ethernet SNAP)\n");
ipx = (struct ipxhdr *)framePtr;
} else if (!memcmp(aarp_snap_id, framePtr, 5)) {
framePtr += 5; /* eliminate the SNAP header */
ea = (struct elapaarp *)framePtr;
} else if (!memcmp(ddp_snap_id, framePtr, 5)) {
framePtr += 5; /* eliminate the SNAP header */
ddp = (struct ddpehdr *)framePtr;
} else {
DEBUG_WARN("NAT25: Protocol=Ethernet SNAP %02x%02x%02x%02x%02x\n", framePtr[0],
framePtr[1], framePtr[2], framePtr[3], framePtr[4]);
return -1;
}
} else if (*framePtr == ipx_8022_type) {
framePtr += 3; /* eliminate the 802.2 header */
if (!memcmp(ipx_header, framePtr, 2)) {
RTW_INFO("NAT25: Protocol=IPX (Ethernet 802.2)\n");
ipx = (struct ipxhdr *)framePtr;
} else
return -1;
}
}
}
/* IPX */
if (ipx != NULL) {
switch (method) {
case NAT25_CHECK:
if (!memcmp(skb->data + ETH_ALEN, ipx->ipx_source.node, ETH_ALEN)) {
RTW_INFO("NAT25: Check IPX skb_copy\n");
return 0;
}
return -1;
case NAT25_INSERT: {
RTW_INFO("NAT25: Insert IPX, Dest=%08x,%02x%02x%02x%02x%02x%02x,%04x Source=%08x,%02x%02x%02x%02x%02x%02x,%04x\n",
ipx->ipx_dest.net,
ipx->ipx_dest.node[0],
ipx->ipx_dest.node[1],
ipx->ipx_dest.node[2],
ipx->ipx_dest.node[3],
ipx->ipx_dest.node[4],
ipx->ipx_dest.node[5],
ipx->ipx_dest.sock,
ipx->ipx_source.net,
ipx->ipx_source.node[0],
ipx->ipx_source.node[1],
ipx->ipx_source.node[2],
ipx->ipx_source.node[3],
ipx->ipx_source.node[4],
ipx->ipx_source.node[5],
ipx->ipx_source.sock);
if (!memcmp(skb->data + ETH_ALEN, ipx->ipx_source.node, ETH_ALEN)) {
RTW_INFO("NAT25: Use IPX Net, and Socket as network addr\n");
__nat25_generate_ipx_network_addr_with_socket(networkAddr, &ipx->ipx_source.net, &ipx->ipx_source.sock);
/* change IPX source node addr to wlan STA address */
memcpy(ipx->ipx_source.node, GET_MY_HWADDR(priv), ETH_ALEN);
} else
__nat25_generate_ipx_network_addr_with_node(networkAddr, &ipx->ipx_source.net, ipx->ipx_source.node);
__nat25_db_network_insert(priv, skb->data + ETH_ALEN, networkAddr);
__nat25_db_print(priv);
}
return 0;
case NAT25_LOOKUP: {
if (!memcmp(GET_MY_HWADDR(priv), ipx->ipx_dest.node, ETH_ALEN)) {
RTW_INFO("NAT25: Lookup IPX, Modify Destination IPX Node addr\n");
__nat25_generate_ipx_network_addr_with_socket(networkAddr, &ipx->ipx_dest.net, &ipx->ipx_dest.sock);
__nat25_db_network_lookup_and_replace(priv, skb, networkAddr);
/* replace IPX destination node addr with Lookup destination MAC addr */
memcpy(ipx->ipx_dest.node, skb->data, ETH_ALEN);
} else {
__nat25_generate_ipx_network_addr_with_node(networkAddr, &ipx->ipx_dest.net, ipx->ipx_dest.node);
__nat25_db_network_lookup_and_replace(priv, skb, networkAddr);
}
}
return 0;
default:
return -1;
}
}
/* AARP */
else if (ea != NULL) {
/* Sanity check fields. */
if (ea->hw_len != ETH_ALEN || ea->pa_len != AARP_PA_ALEN) {
DEBUG_WARN("NAT25: Appletalk AARP Sanity check fail!\n");
return -1;
}
switch (method) {
case NAT25_CHECK:
return 0;
case NAT25_INSERT: {
/* change to AARP source mac address to wlan STA address */
memcpy(ea->hw_src, GET_MY_HWADDR(priv), ETH_ALEN);
RTW_INFO("NAT25: Insert AARP, Source=%d,%d Destination=%d,%d\n",
ea->pa_src_net,
ea->pa_src_node,
ea->pa_dst_net,
ea->pa_dst_node);
__nat25_generate_apple_network_addr(networkAddr, &ea->pa_src_net, &ea->pa_src_node);
__nat25_db_network_insert(priv, skb->data + ETH_ALEN, networkAddr);
__nat25_db_print(priv);
}
return 0;
case NAT25_LOOKUP: {
RTW_INFO("NAT25: Lookup AARP, Source=%d,%d Destination=%d,%d\n",
ea->pa_src_net,
ea->pa_src_node,
ea->pa_dst_net,
ea->pa_dst_node);
__nat25_generate_apple_network_addr(networkAddr, &ea->pa_dst_net, &ea->pa_dst_node);
__nat25_db_network_lookup_and_replace(priv, skb, networkAddr);
/* change to AARP destination mac address to Lookup result */
memcpy(ea->hw_dst, skb->data, ETH_ALEN);
}
return 0;
default:
return -1;
}
}
/* DDP */
else if (ddp != NULL) {
switch (method) {
case NAT25_CHECK:
return -1;
case NAT25_INSERT: {
RTW_INFO("NAT25: Insert DDP, Source=%d,%d Destination=%d,%d\n",
ddp->deh_snet,
ddp->deh_snode,
ddp->deh_dnet,
ddp->deh_dnode);
__nat25_generate_apple_network_addr(networkAddr, &ddp->deh_snet, &ddp->deh_snode);
__nat25_db_network_insert(priv, skb->data + ETH_ALEN, networkAddr);
__nat25_db_print(priv);
}
return 0;
case NAT25_LOOKUP: {
RTW_INFO("NAT25: Lookup DDP, Source=%d,%d Destination=%d,%d\n",
ddp->deh_snet,
ddp->deh_snode,
ddp->deh_dnet,
ddp->deh_dnode);
__nat25_generate_apple_network_addr(networkAddr, &ddp->deh_dnet, &ddp->deh_dnode);
__nat25_db_network_lookup_and_replace(priv, skb, networkAddr);
}
return 0;
default:
return -1;
}
}
return -1;
}
/*---------------------------------------------------*/ /*---------------------------------------------------*/
/* Handle PPPoE frame */ /* Handle PPPoE frame */