From: navin patidar Date: Mon, 16 Jun 2014 16:05:39 +0000 (+0530) Subject: staging: rtl8188eu: Remove unused functons defined in rtw_br_ext.c X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2ace82d69246bbc07389109cfd89e539383707ea;p=linux-beck.git 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: navin patidar Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/rtl8188eu/core/rtw_br_ext.c b/drivers/staging/rtl8188eu/core/rtw_br_ext.c index 70b8f0719703..86899125ea59 100644 --- a/drivers/staging/rtl8188eu/core/rtw_br_ext.c +++ b/drivers/staging/rtl8188eu/core/rtw_br_ext.c @@ -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 diff --git a/drivers/staging/rtl8188eu/include/usb_osintf.h b/drivers/staging/rtl8188eu/include/usb_osintf.h index 292ded7c2bb3..8036c3873fda 100644 --- a/drivers/staging/rtl8188eu/include/usb_osintf.h +++ b/drivers/staging/rtl8188eu/include/usb_osintf.h @@ -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);