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Commit 2ace82d6 authored by navin patidar's avatar navin patidar Committed by Greg Kroah-Hartman
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staging: rtl8188eu: Remove unused functons defined in rtw_br_ext.c 

This patch removes some functions defined in rtw_br_ext.c, which have become
obsolete after removal of rtw_br_client_tx().
Signed-off-by: default avatarnavin patidar <navin.patidar@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent dcea7472
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Showing with 0 additions and 728 deletions
drivers/staging/rtl8188eu/core/rtw_br_ext.c
View file @ 2ace82d6
......@@ -103,27 +103,6 @@ static inline int __nat25_add_pppoe_tag(struct sk_buff *skb, struct pppoe_tag *t
return data_len;
}
static int skb_pull_and_merge(struct sk_buff *skb, unsigned char *src, int len)
{
int tail_len;
unsigned long end, tail;
if ((src+len) > skb_tail_pointer(skb) || skb->len < len)
return -1;
tail = (unsigned long)skb_tail_pointer(skb);
end = (unsigned long)src+len;
if (tail < end)
return -1;
tail_len = (int)(tail-end);
if (tail_len > 0)
memmove(src, src+len, tail_len);
skb_trim(skb, skb->len-len);
return 0;
}
static inline unsigned long __nat25_timeout(struct adapter *priv)
{
unsigned long timeout;
......@@ -196,91 +175,6 @@ static inline void __nat25_generate_pppoe_network_addr(unsigned char *networkAdd
memcpy(networkAddr+3, (unsigned char *)ac_mac, 6);
}
static void __nat25_generate_ipv6_network_addr(unsigned char *networkAddr,
__be32 *ipAddr)
{
memset(networkAddr, 0, MAX_NETWORK_ADDR_LEN);
networkAddr[0] = NAT25_IPV6;
memcpy(networkAddr+1, (unsigned char *)ipAddr, 16);
}
static unsigned char *scan_tlv(unsigned char *data, int len, unsigned char tag, unsigned char len8b)
{
while (len > 0) {
if (*data == tag && *(data+1) == len8b && len >= len8b*8)
return data+2;
len -= (*(data+1))*8;
data += (*(data+1))*8;
}
return NULL;
}
static int update_nd_link_layer_addr(unsigned char *data, int len, unsigned char *replace_mac)
{
struct icmp6hdr *icmphdr = (struct icmp6hdr *)data;
unsigned char *mac;
if (icmphdr->icmp6_type == NDISC_ROUTER_SOLICITATION) {
if (len >= 8) {
mac = scan_tlv(&data[8], len-8, 1, 1);
if (mac) {
_DEBUG_INFO("Router Solicitation, replace MAC From: %02x:%02x:%02x:%02x:%02x:%02x, To: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
replace_mac[0], replace_mac[1], replace_mac[2], replace_mac[3], replace_mac[4], replace_mac[5]);
memcpy(mac, replace_mac, 6);
return 1;
}
}
} else if (icmphdr->icmp6_type == NDISC_ROUTER_ADVERTISEMENT) {
if (len >= 16) {
mac = scan_tlv(&data[16], len-16, 1, 1);
if (mac) {
_DEBUG_INFO("Router Advertisement, replace MAC From: %02x:%02x:%02x:%02x:%02x:%02x, To: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
replace_mac[0], replace_mac[1], replace_mac[2], replace_mac[3], replace_mac[4], replace_mac[5]);
memcpy(mac, replace_mac, 6);
return 1;
}
}
} else if (icmphdr->icmp6_type == NDISC_NEIGHBOUR_SOLICITATION) {
if (len >= 24) {
mac = scan_tlv(&data[24], len-24, 1, 1);
if (mac) {
_DEBUG_INFO("Neighbor Solicitation, replace MAC From: %02x:%02x:%02x:%02x:%02x:%02x, To: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
replace_mac[0], replace_mac[1], replace_mac[2], replace_mac[3], replace_mac[4], replace_mac[5]);
memcpy(mac, replace_mac, 6);
return 1;
}
}
} else if (icmphdr->icmp6_type == NDISC_NEIGHBOUR_ADVERTISEMENT) {
if (len >= 24) {
mac = scan_tlv(&data[24], len-24, 2, 1);
if (mac) {
_DEBUG_INFO("Neighbor Advertisement, replace MAC From: %02x:%02x:%02x:%02x:%02x:%02x, To: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
replace_mac[0], replace_mac[1], replace_mac[2], replace_mac[3], replace_mac[4], replace_mac[5]);
memcpy(mac, replace_mac, 6);
return 1;
}
}
} else if (icmphdr->icmp6_type == NDISC_REDIRECT) {
if (len >= 40) {
mac = scan_tlv(&data[40], len-40, 2, 1);
if (mac) {
_DEBUG_INFO("Redirect, replace MAC From: %02x:%02x:%02x:%02x:%02x:%02x, To: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
replace_mac[0], replace_mac[1], replace_mac[2], replace_mac[3], replace_mac[4], replace_mac[5]);
memcpy(mac, replace_mac, 6);
return 1;
}
}
}
return 0;
}
static inline int __nat25_network_hash(unsigned char *networkAddr)
{
if (networkAddr[0] == NAT25_IPV4) {
......@@ -349,88 +243,6 @@ static inline void __network_hash_unlink(struct nat25_network_db_entry *ent)
ent->pprev_hash = NULL;
}
static int __nat25_db_network_lookup_and_replace(struct adapter *priv,
struct sk_buff *skb, unsigned char *networkAddr)
{
struct nat25_network_db_entry *db;
spin_lock_bh(&priv->br_ext_lock);
db = priv->nethash[__nat25_network_hash(networkAddr)];
while (db != NULL) {
if (!memcmp(db->networkAddr, networkAddr, MAX_NETWORK_ADDR_LEN)) {
if (!__nat25_has_expired(priv, db)) {
/* replace the destination mac address */
memcpy(skb->data, db->macAddr, ETH_ALEN);
atomic_inc(&db->use_count);
DEBUG_INFO("NAT25: Lookup M:%02x%02x%02x%02x%02x%02x N:%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
"%02x%02x%02x%02x%02x%02x\n",
db->macAddr[0],
db->macAddr[1],
db->macAddr[2],
db->macAddr[3],
db->macAddr[4],
db->macAddr[5],
db->networkAddr[0],
db->networkAddr[1],
db->networkAddr[2],
db->networkAddr[3],
db->networkAddr[4],
db->networkAddr[5],
db->networkAddr[6],
db->networkAddr[7],
db->networkAddr[8],
db->networkAddr[9],
db->networkAddr[10],
db->networkAddr[11],
db->networkAddr[12],
db->networkAddr[13],
db->networkAddr[14],
db->networkAddr[15],
db->networkAddr[16]);
}
spin_unlock_bh(&priv->br_ext_lock);
return 1;
}
db = db->next_hash;
}
spin_unlock_bh(&priv->br_ext_lock);
return 0;
}
static void __nat25_db_network_insert(struct adapter *priv,
unsigned char *macAddr, unsigned char *networkAddr)
{
struct nat25_network_db_entry *db;
int hash;
spin_lock_bh(&priv->br_ext_lock);
hash = __nat25_network_hash(networkAddr);
db = priv->nethash[hash];
while (db != NULL) {
if (!memcmp(db->networkAddr, networkAddr, MAX_NETWORK_ADDR_LEN)) {
ether_addr_copy(db->macAddr, macAddr);
db->ageing_timer = jiffies;
spin_unlock_bh(&priv->br_ext_lock);
return;
}
db = db->next_hash;
}
db = (struct nat25_network_db_entry *) rtw_malloc(sizeof(*db));
if (db == NULL) {
spin_unlock_bh(&priv->br_ext_lock);
return;
}
memcpy(db->networkAddr, networkAddr, MAX_NETWORK_ADDR_LEN);
ether_addr_copy(db->macAddr, macAddr);
atomic_set(&db->use_count, 1);
db->ageing_timer = jiffies;
__network_hash_link(priv, db, hash);
spin_unlock_bh(&priv->br_ext_lock);
}
/*
* NAT2.5 interface
*/
......@@ -491,545 +303,6 @@ void nat25_db_expire(struct adapter *priv)
spin_unlock_bh(&priv->br_ext_lock);
}
int nat25_db_handle(struct adapter *priv, struct sk_buff *skb, int method)
{
unsigned short protocol;
unsigned char networkAddr[MAX_NETWORK_ADDR_LEN];
unsigned int tmp;
if (skb == NULL)
return -1;
if ((method <= NAT25_MIN) || (method >= NAT25_MAX))
return -1;
protocol = be16_to_cpu(*((__be16 *)(skb->data + 2 * ETH_ALEN)));
/*---------------------------------------------------*/
/* Handle IP frame */
/*---------------------------------------------------*/
if (protocol == ETH_P_IP) {
struct iphdr *iph = (struct iphdr *)(skb->data + ETH_HLEN);
if (((unsigned char *)(iph) + (iph->ihl<<2)) >= (skb->data + ETH_HLEN + skb->len)) {
DEBUG_WARN("NAT25: malformed IP packet !\n");
return -1;
}
switch (method) {
case NAT25_CHECK:
return -1;
case NAT25_INSERT:
/* some multicast with source IP is all zero, maybe other case is illegal */
/* in class A, B, C, host address is all zero or all one is illegal */
if (iph->saddr == 0)
return 0;
tmp = be32_to_cpu(iph->saddr);
DEBUG_INFO("NAT25: Insert IP, SA =%08x, DA =%08x\n", tmp, iph->daddr);
__nat25_generate_ipv4_network_addr(networkAddr, &tmp);
/* record source IP address and , source mac address into db */
__nat25_db_network_insert(priv, skb->data+ETH_ALEN, networkAddr);
return 0;
case NAT25_LOOKUP:
DEBUG_INFO("NAT25: Lookup IP, SA =%08x, DA =%08x\n", iph->saddr, iph->daddr);
tmp = be32_to_cpu(iph->daddr);
__nat25_generate_ipv4_network_addr(networkAddr, &tmp);
if (!__nat25_db_network_lookup_and_replace(priv, skb, networkAddr)) {
if (*((unsigned char *)&iph->daddr + 3) == 0xff) {
/* L2 is unicast but L3 is broadcast, make L2 bacome broadcast */
DEBUG_INFO("NAT25: Set DA as broadcast\n");
memset(skb->data, 0xff, ETH_ALEN);
} else {
/* forward unknown IP packet to upper TCP/IP */
DEBUG_INFO("NAT25: Replace DA with BR's MAC\n");
if ((*(u32 *)priv->br_mac) == 0 && (*(u16 *)(priv->br_mac+4)) == 0) {
netdev_info(skb->dev,
"Re-init netdev_br_init() due to br_mac == 0!\n");
netdev_br_init(priv->pnetdev);
}
memcpy(skb->data, priv->br_mac, ETH_ALEN);
}
}
return 0;
default:
return -1;
}
} else if (protocol == ETH_P_ARP) {
/*---------------------------------------------------*/
/* Handle ARP frame */
/*---------------------------------------------------*/
struct arphdr *arp = (struct arphdr *)(skb->data + ETH_HLEN);
unsigned char *arp_ptr = (unsigned char *)(arp + 1);
unsigned int *sender, *target;
if (arp->ar_pro != __constant_htons(ETH_P_IP)) {
DEBUG_WARN("NAT25: arp protocol unknown (%4x)!\n", be16_to_cpu(arp->ar_pro));
return -1;
}
switch (method) {
case NAT25_CHECK:
return 0; /* skb_copy for all ARP frame */
case NAT25_INSERT:
DEBUG_INFO("NAT25: Insert ARP, MAC =%02x%02x%02x%02x%02x%02x\n", arp_ptr[0],
arp_ptr[1], arp_ptr[2], arp_ptr[3], arp_ptr[4], arp_ptr[5]);
/* change to ARP sender mac address to wlan STA address */
memcpy(arp_ptr, GET_MY_HWADDR(priv), ETH_ALEN);
arp_ptr += arp->ar_hln;
sender = (unsigned int *)arp_ptr;
__nat25_generate_ipv4_network_addr(networkAddr, sender);
__nat25_db_network_insert(priv, skb->data+ETH_ALEN, networkAddr);
return 0;
case NAT25_LOOKUP:
DEBUG_INFO("NAT25: Lookup ARP\n");
arp_ptr += arp->ar_hln;
sender = (unsigned int *)arp_ptr;
arp_ptr += (arp->ar_hln + arp->ar_pln);
target = (unsigned int *)arp_ptr;
__nat25_generate_ipv4_network_addr(networkAddr, target);
__nat25_db_network_lookup_and_replace(priv, skb, networkAddr);
/* change to ARP target mac address to Lookup result */
arp_ptr = (unsigned char *)(arp + 1);
arp_ptr += (arp->ar_hln + arp->ar_pln);
memcpy(arp_ptr, skb->data, ETH_ALEN);
return 0;
default:
return -1;
}
} else if ((protocol == ETH_P_IPX) ||
(protocol <= ETH_FRAME_LEN)) {
/*---------------------------------------------------*/
/* Handle IPX and Apple Talk frame */
/*---------------------------------------------------*/
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 == ETH_P_IPX) {
DEBUG_INFO("NAT25: Protocol = IPX (Ethernet II)\n");
ipx = (struct ipxhdr *)framePtr;
} else if (protocol <= ETH_FRAME_LEN) {
if (!memcmp(ipx_header, framePtr, 2)) {
DEBUG_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 */
DEBUG_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)) {
DEBUG_INFO("NAT25: Protocol = IPX (Ethernet 802.2)\n");
ipx = (struct ipxhdr *)framePtr;
} else {
return -1;
}
} else {
return -1;
}
}
} else {
return -1;
}
/* IPX */
if (ipx != NULL) {
switch (method) {
case NAT25_CHECK:
if (!memcmp(skb->data+ETH_ALEN, ipx->ipx_source.node, ETH_ALEN))
DEBUG_INFO("NAT25: Check IPX skb_copy\n");
return 0;
case NAT25_INSERT:
DEBUG_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)) {
DEBUG_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);
return 0;
case NAT25_LOOKUP:
if (!memcmp(GET_MY_HWADDR(priv), ipx->ipx_dest.node, ETH_ALEN)) {
DEBUG_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;
}
} 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);
DEBUG_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);
return 0;
case NAT25_LOOKUP:
DEBUG_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;
}
} else if (ddp != NULL) {
switch (method) {
case NAT25_CHECK:
return -1;
case NAT25_INSERT:
DEBUG_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);
return 0;
case NAT25_LOOKUP:
DEBUG_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;
} else if ((protocol == ETH_P_PPP_DISC) ||
(protocol == ETH_P_PPP_SES)) {
/*---------------------------------------------------*/
/* Handle PPPoE frame */
/*---------------------------------------------------*/
struct pppoe_hdr *ph = (struct pppoe_hdr *)(skb->data + ETH_HLEN);
__be16 *pMagic;
switch (method) {
case NAT25_CHECK:
if (ph->sid == 0)
return 0;
return 1;
case NAT25_INSERT:
if (ph->sid == 0) { /* Discovery phase according to tag */
if (ph->code == PADI_CODE || ph->code == PADR_CODE) {
if (priv->ethBrExtInfo.addPPPoETag) {
struct pppoe_tag *tag, *pOldTag;
unsigned char tag_buf[40];
int old_tag_len = 0;
tag = (struct pppoe_tag *)tag_buf;
pOldTag = (struct pppoe_tag *)__nat25_find_pppoe_tag(ph, ntohs(PTT_RELAY_SID));
if (pOldTag) { /* if SID existed, copy old value and delete it */
old_tag_len = ntohs(pOldTag->tag_len);
if (old_tag_len+TAG_HDR_LEN+MAGIC_CODE_LEN+RTL_RELAY_TAG_LEN > sizeof(tag_buf)) {
DEBUG_ERR("SID tag length too long!\n");
return -1;
}
memcpy(tag->tag_data+MAGIC_CODE_LEN+RTL_RELAY_TAG_LEN,
pOldTag->tag_data, old_tag_len);
if (skb_pull_and_merge(skb, (unsigned char *)pOldTag, TAG_HDR_LEN+old_tag_len) < 0) {
DEBUG_ERR("call skb_pull_and_merge() failed in PADI/R packet!\n");
return -1;
}
ph->length = htons(ntohs(ph->length)-TAG_HDR_LEN-old_tag_len);
}
tag->tag_type = PTT_RELAY_SID;
tag->tag_len = htons(MAGIC_CODE_LEN+RTL_RELAY_TAG_LEN+old_tag_len);
/* insert the magic_code+client mac in relay tag */
pMagic = (__be16 *)tag->tag_data;
*pMagic = htons(MAGIC_CODE);
memcpy(tag->tag_data+MAGIC_CODE_LEN, skb->data+ETH_ALEN, ETH_ALEN);
/* Add relay tag */
if (__nat25_add_pppoe_tag(skb, tag) < 0)
return -1;
DEBUG_INFO("NAT25: Insert PPPoE, forward %s packet\n",
(ph->code == PADI_CODE ? "PADI" : "PADR"));
} else { /* not add relay tag */
if (priv->pppoe_connection_in_progress &&
memcmp(skb->data+ETH_ALEN, priv->pppoe_addr, ETH_ALEN)) {
DEBUG_ERR("Discard PPPoE packet due to another PPPoE connection is in progress!\n");
return -2;
}
if (priv->pppoe_connection_in_progress == 0)
memcpy(priv->pppoe_addr, skb->data+ETH_ALEN, ETH_ALEN);
priv->pppoe_connection_in_progress = WAIT_TIME_PPPOE;
}
} else {
return -1;
}
} else { /* session phase */
DEBUG_INFO("NAT25: Insert PPPoE, insert session packet to %s\n", skb->dev->name);
__nat25_generate_pppoe_network_addr(networkAddr, skb->data, &(ph->sid));
__nat25_db_network_insert(priv, skb->data+ETH_ALEN, networkAddr);
if (!priv->ethBrExtInfo.addPPPoETag &&
priv->pppoe_connection_in_progress &&
!memcmp(skb->data+ETH_ALEN, priv->pppoe_addr, ETH_ALEN))
priv->pppoe_connection_in_progress = 0;
}
return 0;
case NAT25_LOOKUP:
if (ph->code == PADO_CODE || ph->code == PADS_CODE) {
if (priv->ethBrExtInfo.addPPPoETag) {
struct pppoe_tag *tag;
unsigned char *ptr;
unsigned short tagType, tagLen;
int offset = 0;
ptr = __nat25_find_pppoe_tag(ph, ntohs(PTT_RELAY_SID));
if (ptr == NULL) {
DEBUG_ERR("Fail to find PTT_RELAY_SID in FADO!\n");
return -1;
}
tag = (struct pppoe_tag *)ptr;
tagType = (unsigned short)((ptr[0] << 8) + ptr[1]);
tagLen = (unsigned short)((ptr[2] << 8) + ptr[3]);
if ((tagType != ntohs(PTT_RELAY_SID)) || (tagLen < (MAGIC_CODE_LEN+RTL_RELAY_TAG_LEN))) {
DEBUG_ERR("Invalid PTT_RELAY_SID tag length [%d]!\n", tagLen);
return -1;
}
pMagic = (__be16 *)tag->tag_data;
if (ntohs(*pMagic) != MAGIC_CODE) {
DEBUG_ERR("Can't find MAGIC_CODE in %s packet!\n",
(ph->code == PADO_CODE ? "PADO" : "PADS"));
return -1;
}
memcpy(skb->data, tag->tag_data+MAGIC_CODE_LEN, ETH_ALEN);
if (tagLen > MAGIC_CODE_LEN+RTL_RELAY_TAG_LEN)
offset = TAG_HDR_LEN;
if (skb_pull_and_merge(skb, ptr+offset, TAG_HDR_LEN+MAGIC_CODE_LEN+RTL_RELAY_TAG_LEN-offset) < 0) {
DEBUG_ERR("call skb_pull_and_merge() failed in PADO packet!\n");
return -1;
}
ph->length = htons(ntohs(ph->length)-(TAG_HDR_LEN+MAGIC_CODE_LEN+RTL_RELAY_TAG_LEN-offset));
if (offset > 0)
tag->tag_len = htons(tagLen-MAGIC_CODE_LEN-RTL_RELAY_TAG_LEN);
DEBUG_INFO("NAT25: Lookup PPPoE, forward %s Packet from %s\n",
(ph->code == PADO_CODE ? "PADO" : "PADS"), skb->dev->name);
} else { /* not add relay tag */
if (!priv->pppoe_connection_in_progress) {
DEBUG_ERR("Discard PPPoE packet due to no connection in progress!\n");
return -1;
}
memcpy(skb->data, priv->pppoe_addr, ETH_ALEN);
priv->pppoe_connection_in_progress = WAIT_TIME_PPPOE;
}
} else {
if (ph->sid != 0) {
DEBUG_INFO("NAT25: Lookup PPPoE, lookup session packet from %s\n", skb->dev->name);
__nat25_generate_pppoe_network_addr(networkAddr, skb->data+ETH_ALEN, &(ph->sid));
__nat25_db_network_lookup_and_replace(priv, skb, networkAddr);
} else {
return -1;
}
}
return 0;
default:
return -1;
}
} else if (protocol == 0x888e) {
/*---------------------------------------------------*/
/* Handle EAP frame */
/*---------------------------------------------------*/
switch (method) {
case NAT25_CHECK:
return -1;
case NAT25_INSERT:
return 0;
case NAT25_LOOKUP:
return 0;
default:
return -1;
}
} else if ((protocol == 0xe2ae) || (protocol == 0xe2af)) {
/*---------------------------------------------------*/
/* Handle C-Media proprietary frame */
/*---------------------------------------------------*/
switch (method) {
case NAT25_CHECK:
return -1;
case NAT25_INSERT:
return 0;
case NAT25_LOOKUP:
return 0;
default:
return -1;
}
} else if (protocol == ETH_P_IPV6) {
/*------------------------------------------------*/
/* Handle IPV6 frame */
/*------------------------------------------------*/
struct ipv6hdr *iph = (struct ipv6hdr *)(skb->data + ETH_HLEN);
if (sizeof(*iph) >= (skb->len - ETH_HLEN)) {
DEBUG_WARN("NAT25: malformed IPv6 packet !\n");
return -1;
}
switch (method) {
case NAT25_CHECK:
if (skb->data[0] & 1)
return 0;
return -1;
case NAT25_INSERT:
DEBUG_INFO("NAT25: Insert IP, SA =%4x:%4x:%4x:%4x:%4x:%4x:%4x:%4x,"
" DA =%4x:%4x:%4x:%4x:%4x:%4x:%4x:%4x\n",
iph->saddr.s6_addr16[0], iph->saddr.s6_addr16[1], iph->saddr.s6_addr16[2], iph->saddr.s6_addr16[3],
iph->saddr.s6_addr16[4], iph->saddr.s6_addr16[5], iph->saddr.s6_addr16[6], iph->saddr.s6_addr16[7],
iph->daddr.s6_addr16[0], iph->daddr.s6_addr16[1], iph->daddr.s6_addr16[2], iph->daddr.s6_addr16[3],
iph->daddr.s6_addr16[4], iph->daddr.s6_addr16[5], iph->daddr.s6_addr16[6], iph->daddr.s6_addr16[7]);
if (memcmp(&iph->saddr, "\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0", 16)) {
__nat25_generate_ipv6_network_addr(networkAddr, (__be32 *)&iph->saddr);
__nat25_db_network_insert(priv, skb->data+ETH_ALEN, networkAddr);
if (iph->nexthdr == IPPROTO_ICMPV6 &&
skb->len > (ETH_HLEN + sizeof(*iph) + 4)) {
if (update_nd_link_layer_addr(skb->data + ETH_HLEN + sizeof(*iph),
skb->len - ETH_HLEN - sizeof(*iph), GET_MY_HWADDR(priv))) {
struct icmp6hdr *hdr = (struct icmp6hdr *)(skb->data + ETH_HLEN + sizeof(*iph));
hdr->icmp6_cksum = 0;
hdr->icmp6_cksum = csum_ipv6_magic(&iph->saddr, &iph->daddr,
be16_to_cpu(iph->payload_len),
IPPROTO_ICMPV6,
csum_partial((__u8 *)hdr,
be16_to_cpu(iph->payload_len), 0));
}
}
}
return 0;
case NAT25_LOOKUP:
DEBUG_INFO("NAT25: Lookup IP, SA =%4x:%4x:%4x:%4x:%4x:%4x:%4x:%4x, DA =%4x:%4x:%4x:%4x:%4x:%4x:%4x:%4x\n",
iph->saddr.s6_addr16[0], iph->saddr.s6_addr16[1], iph->saddr.s6_addr16[2], iph->saddr.s6_addr16[3],
iph->saddr.s6_addr16[4], iph->saddr.s6_addr16[5], iph->saddr.s6_addr16[6], iph->saddr.s6_addr16[7],
iph->daddr.s6_addr16[0], iph->daddr.s6_addr16[1], iph->daddr.s6_addr16[2], iph->daddr.s6_addr16[3],
iph->daddr.s6_addr16[4], iph->daddr.s6_addr16[5], iph->daddr.s6_addr16[6], iph->daddr.s6_addr16[7]);
__nat25_generate_ipv6_network_addr(networkAddr, (__be32 *)&iph->daddr);
__nat25_db_network_lookup_and_replace(priv, skb, networkAddr);
return 0;
default:
return -1;
}
}
return -1;
}
#define SERVER_PORT 67
#define CLIENT_PORT 68
#define DHCP_MAGIC 0x63825363
......
drivers/staging/rtl8188eu/include/usb_osintf.h
View file @ 2ace82d6
......@@ -34,7 +34,6 @@ void dhcp_flag_bcast(struct adapter *priv, struct sk_buff *skb);
void *scdb_findEntry(struct adapter *priv, unsigned char *macAddr,
unsigned char *ipAddr);
void nat25_db_expire(struct adapter *priv);
int nat25_db_handle(struct adapter *priv, struct sk_buff *skb, int method);
int rtw_resume_process(struct adapter *padapter);
......
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