From a7f5f2777f4b1d98e4d6682458dbc13c1f9fe103 Mon Sep 17 00:00:00 2001 From: navin patidar Date: Mon, 16 Jun 2014 21:35:44 +0530 Subject: [PATCH] staging: rtl8188eu: core: Remove file rtw_br_ext.c functions defined in rtw_br_ext.c are not being used by driver anymore. Signed-off-by: navin patidar Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/Makefile | 1 - drivers/staging/rtl8188eu/core/rtw_br_ext.c | 365 -------------------- 2 files changed, 366 deletions(-) delete mode 100644 drivers/staging/rtl8188eu/core/rtw_br_ext.c diff --git a/drivers/staging/rtl8188eu/Makefile b/drivers/staging/rtl8188eu/Makefile index b2030894b7b..74a032cf00d 100644 --- a/drivers/staging/rtl8188eu/Makefile +++ b/drivers/staging/rtl8188eu/Makefile @@ -1,6 +1,5 @@ r8188eu-y := \ core/rtw_ap.o \ - core/rtw_br_ext.o \ core/rtw_cmd.o \ core/rtw_debug.o \ core/rtw_efuse.o \ diff --git a/drivers/staging/rtl8188eu/core/rtw_br_ext.c b/drivers/staging/rtl8188eu/core/rtw_br_ext.c deleted file mode 100644 index b0b1af99e9c..00000000000 --- a/drivers/staging/rtl8188eu/core/rtw_br_ext.c +++ /dev/null @@ -1,365 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * - ******************************************************************************/ -#define _RTW_BR_EXT_C_ - -#include -#include -#include -#include -#include -#include - -#include -#include "rtw_br_ext.h" -#include -#include - -#ifndef csum_ipv6_magic -#include -#endif - -#include -#include -#include -#include - -#define NAT25_IPV4 01 -#define NAT25_IPV6 02 -#define NAT25_IPX 03 -#define NAT25_APPLE 04 -#define NAT25_PPPOE 05 - -#define RTL_RELAY_TAG_LEN (ETH_ALEN) -#define TAG_HDR_LEN 4 - -#define MAGIC_CODE 0x8186 -#define MAGIC_CODE_LEN 2 -#define WAIT_TIME_PPPOE 5 /* waiting time for pppoe server in sec */ - -/*----------------------------------------------------------------- - How database records network address: - 0 1 2 3 4 5 6 7 8 9 10 - |----|----|----|----|----|----|----|----|----|----|----| - IPv4 |type| | IP addr | - IPX |type| Net addr | Node addr | - IPX |type| Net addr |Sckt addr| - Apple |type| Network |node| - PPPoE |type| SID | AC MAC | ------------------------------------------------------------------*/ - - -/* Find a tag in pppoe frame and return the pointer */ -static inline unsigned char *__nat25_find_pppoe_tag(struct pppoe_hdr *ph, unsigned short type) -{ - unsigned char *cur_ptr, *start_ptr; - unsigned short tagLen, tagType; - - start_ptr = cur_ptr = (unsigned char *)ph->tag; - while ((cur_ptr - start_ptr) < ntohs(ph->length)) { - /* prevent un-alignment access */ - tagType = (unsigned short)((cur_ptr[0] << 8) + cur_ptr[1]); - tagLen = (unsigned short)((cur_ptr[2] << 8) + cur_ptr[3]); - if (tagType == type) - return cur_ptr; - cur_ptr = cur_ptr + TAG_HDR_LEN + tagLen; - } - return NULL; -} - - -static inline int __nat25_add_pppoe_tag(struct sk_buff *skb, struct pppoe_tag *tag) -{ - struct pppoe_hdr *ph = (struct pppoe_hdr *)(skb->data + ETH_HLEN); - int data_len; - - data_len = be16_to_cpu(tag->tag_len) + TAG_HDR_LEN; - if (skb_tailroom(skb) < data_len) { - _DEBUG_ERR("skb_tailroom() failed in add SID tag!\n"); - return -1; - } - - skb_put(skb, data_len); - /* have a room for new tag */ - memmove(((unsigned char *)ph->tag + data_len), (unsigned char *)ph->tag, ntohs(ph->length)); - ph->length = htons(ntohs(ph->length) + data_len); - memcpy((unsigned char *)ph->tag, tag, data_len); - return data_len; -} - -static inline unsigned long __nat25_timeout(struct adapter *priv) -{ - unsigned long timeout; - - timeout = jiffies - NAT25_AGEING_TIME*HZ; - - return timeout; -} - - -static inline int __nat25_has_expired(struct adapter *priv, - struct nat25_network_db_entry *fdb) -{ - if (time_before_eq(fdb->ageing_timer, __nat25_timeout(priv))) - return 1; - - return 0; -} - - -static inline void __nat25_generate_ipv4_network_addr(unsigned char *networkAddr, - unsigned int *ipAddr) -{ - memset(networkAddr, 0, MAX_NETWORK_ADDR_LEN); - - networkAddr[0] = NAT25_IPV4; - memcpy(networkAddr+7, (unsigned char *)ipAddr, 4); -} - - -static inline void __nat25_generate_ipx_network_addr_with_node(unsigned char *networkAddr, - __be32 *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, - __be32 *ipxNetAddr, __be16 *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, - __be16 *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, - unsigned char *ac_mac, __be16 *sid) -{ - memset(networkAddr, 0, MAX_NETWORK_ADDR_LEN); - - networkAddr[0] = NAT25_PPPOE; - memcpy(networkAddr+1, (unsigned char *)sid, 2); - memcpy(networkAddr+3, (unsigned char *)ac_mac, 6); -} - -static inline int __nat25_network_hash(unsigned char *networkAddr) -{ - if (networkAddr[0] == NAT25_IPV4) { - unsigned long x; - - 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); - } else if (networkAddr[0] == NAT25_PPPOE) { - unsigned long x; - - x = networkAddr[0] ^ networkAddr[1] ^ networkAddr[2] ^ networkAddr[3] ^ networkAddr[4] ^ networkAddr[5] ^ networkAddr[6] ^ networkAddr[7] ^ networkAddr[8]; - - return x & (NAT25_HASH_SIZE - 1); - } else if (networkAddr[0] == NAT25_IPV6) { - unsigned long x; - - x = networkAddr[1] ^ networkAddr[2] ^ networkAddr[3] ^ networkAddr[4] ^ networkAddr[5] ^ - networkAddr[6] ^ networkAddr[7] ^ networkAddr[8] ^ networkAddr[9] ^ networkAddr[10] ^ - networkAddr[11] ^ networkAddr[12] ^ networkAddr[13] ^ networkAddr[14] ^ networkAddr[15] ^ - networkAddr[16]; - - return x & (NAT25_HASH_SIZE - 1); - } else { - unsigned long x = 0; - int i; - - for (i = 0; i < MAX_NETWORK_ADDR_LEN; i++) - x ^= networkAddr[i]; - - return x & (NAT25_HASH_SIZE - 1); - } -} - -static inline void __network_hash_link(struct adapter *priv, - struct nat25_network_db_entry *ent, int hash) -{ - /* Caller must spin_lock_bh already! */ - ent->next_hash = priv->nethash[hash]; - if (ent->next_hash != NULL) - ent->next_hash->pprev_hash = &ent->next_hash; - priv->nethash[hash] = ent; - ent->pprev_hash = &priv->nethash[hash]; -} - -static inline void __network_hash_unlink(struct nat25_network_db_entry *ent) -{ - /* Caller must spin_lock_bh already! */ - *(ent->pprev_hash) = ent->next_hash; - if (ent->next_hash != NULL) - ent->next_hash->pprev_hash = ent->pprev_hash; - ent->next_hash = NULL; - ent->pprev_hash = NULL; -} - -/* - * NAT2.5 interface - */ - -void nat25_db_expire(struct adapter *priv) -{ - int i; - spin_lock_bh(&priv->br_ext_lock); - - for (i = 0; i < NAT25_HASH_SIZE; i++) { - struct nat25_network_db_entry *f; - f = priv->nethash[i]; - - while (f != NULL) { - struct nat25_network_db_entry *g; - g = f->next_hash; - - if (__nat25_has_expired(priv, f)) { - if (atomic_dec_and_test(&f->use_count)) { - if (priv->scdb_entry == f) { - memset(priv->scdb_mac, 0, ETH_ALEN); - memset(priv->scdb_ip, 0, 4); - priv->scdb_entry = NULL; - } - __network_hash_unlink(f); - kfree(f); - } - } - f = g; - } - } - spin_unlock_bh(&priv->br_ext_lock); -} - -#define SERVER_PORT 67 -#define CLIENT_PORT 68 -#define DHCP_MAGIC 0x63825363 -#define BROADCAST_FLAG 0x8000 - -struct dhcpMessage { - u_int8_t op; - u_int8_t htype; - u_int8_t hlen; - u_int8_t hops; - __be32 xid; - __be16 secs; - __be16 flags; - __be32 ciaddr; - __be32 yiaddr; - __be32 siaddr; - __be32 giaddr; - u_int8_t chaddr[16]; - u_int8_t sname[64]; - u_int8_t file[128]; - __be32 cookie; - u_int8_t options[308]; /* 312 - cookie */ -}; - -void dhcp_flag_bcast(struct adapter *priv, struct sk_buff *skb) -{ - if (skb == NULL) - return; - - if (!priv->ethBrExtInfo.dhcp_bcst_disable) { - __be16 protocol = *((__be16 *)(skb->data + 2 * ETH_ALEN)); - - if (protocol == __constant_htons(ETH_P_IP)) { /* IP */ - struct iphdr *iph = (struct iphdr *)(skb->data + ETH_HLEN); - - if (iph->protocol == IPPROTO_UDP) { /* UDP */ - struct udphdr *udph = (struct udphdr *)((size_t)iph + (iph->ihl << 2)); - - if ((udph->source == __constant_htons(CLIENT_PORT)) && - (udph->dest == __constant_htons(SERVER_PORT))) { /* DHCP request */ - struct dhcpMessage *dhcph = - (struct dhcpMessage *)((size_t)udph + sizeof(struct udphdr)); - u32 cookie = be32_to_cpu((__be32)dhcph->cookie); - - if (cookie == DHCP_MAGIC) { /* match magic word */ - if (!(dhcph->flags & htons(BROADCAST_FLAG))) { - /* if not broadcast */ - register int sum = 0; - - DEBUG_INFO("DHCP: change flag of DHCP request to broadcast.\n"); - /* or BROADCAST flag */ - dhcph->flags |= htons(BROADCAST_FLAG); - /* recalculate checksum */ - sum = ~(udph->check) & 0xffff; - sum += be16_to_cpu(dhcph->flags); - while (sum >> 16) - sum = (sum & 0xffff) + (sum >> 16); - udph->check = ~sum; - } - } - } - } - } - } -} - - -void *scdb_findEntry(struct adapter *priv, unsigned char *macAddr, - unsigned char *ipAddr) -{ - unsigned char networkAddr[MAX_NETWORK_ADDR_LEN]; - struct nat25_network_db_entry *db; - int hash; - - __nat25_generate_ipv4_network_addr(networkAddr, (unsigned int *)ipAddr); - hash = __nat25_network_hash(networkAddr); - db = priv->nethash[hash]; - while (db != NULL) { - if (!memcmp(db->networkAddr, networkAddr, MAX_NETWORK_ADDR_LEN)) - return (void *)db; - - db = db->next_hash; - } - - return NULL; -} -- 2.46.0