/* check for PPLive & PPStream */
int
search_pp (const unsigned char *payload, const u16 plen)
{
/* message pplive */
if ( memcmp(payload,"GET /zh-cn/xml/default.xml",26)==0 ) return (IPP2P_PP *100 + 1 );
/* message PPStream */
if ( memcmp(payload,"PSProtocol",10)==0 ) return (IPP2P_PP * 100 + 2);
/* message PPLive */
if (get_u16(payload,0) == __constant_htons(0xe903) && get_u32(payload,4) == __constant_htonl(0x98ab0102)) return (IPP2P_PP * 100 + 3);
if (get_u16(payload,4) == __constant_htons(0xe903) && get_u32(payload,8) == __constant_htonl(0x98ab0102)) return (IPP2P_PP * 100 + 4);
/* message UUSee */
if (((*payload + *(payload+1) * 256) == (plen-4) || ((*payload + *(payload+1) * 256) < (plen-4) && *payload + *(payload+1) * 256 + *(payload + *payload + *(payload+1) * 256 + 4) + *(payload + *payload + *(payload+1) * 256 + 5) * 256 + 8 == plen )) && get_u16(payload,2) == __constant_htons(0x0000)) {
if (*(payload+18) == 0x68 && *(payload+20) == 0x74 && *(payload+22) == 0x74 && *(payload+24) == 0x70 && *(payload+26)==0x3a && *(payload+28) == 0x2f && *(payload+30) == 0x2f) return 0;
return (IPP2P_PP * 100 + 5);
}
/* QQLive */
if ( (plen < 150) && (*payload == 0xfe) && (*(payload+1) == *(payload+4)) && get_u16(payload,2) == __constant_htons(0x0000) ) return (IPP2P_PP * 100 + 6);
/* feidian */
if ( (plen == 4 && get_u32(payload,0) == __constant_htonl(0x291c3201)) || (plen == 61 && get_u32(payload,0) == __constant_htonl(0x291c3201) && get_u32(payload,4) == __constant_htonl(0x39000000))) return (IPP2P_PP * 100 + 7);
/* POCO */
if ( (*payload + *(payload+1)*256) == plen && get_u16(payload,2) == __constant_htons(0x0000) && (*(payload+4) + *(payload+5)) == (plen - 13) && get_u16(payload,6) == __constant_htons(0x0000)) return (IPP2P_PP * 100 + 8);
/* QVOD */
if(memcmp((payload + 1),"QVOD protocol",13) == 0) return (IPP2P_PP * 100 + 9);
return 0;
}
int
udp_search_xunlei (unsigned char *t, int packet_len)
{
/* baidu xiaba */
if (packet_len == 24 && get_u32(t,0) == __constant_htonl(0x01000101) && get_u32(t,4) == __constant_htonl(0xfefffeff) && get_u32(t,8) == __constant_htonl(0x00)) return (IPP2P_XUNLEI * 100 + 11);
if (packet_len == 38 && get_u32(t,0) == __constant_htonl(0x010011a0) && get_u32(t,4) == __constant_htonl(0xfefffeff) && get_u32(t,8) == __constant_htonl(0x00)) return (IPP2P_XUNLEI * 100 + 12);
return 0;
}
int ipv6_addr_type(struct in6_addr *addr)
{
u32 st;
st = addr->s6_addr32[0];
/* Consider all addresses with the first three bits different of
000 and 111 as unicasts.
*/
if ((st & htonl(0xE0000000)) != htonl(0x00000000) &&
(st & htonl(0xE0000000)) != htonl(0xE0000000))
return IPV6_ADDR_UNICAST;
if ((st & htonl(0xFF000000)) == htonl(0xFF000000)) {
int type = IPV6_ADDR_MULTICAST;
switch((st & htonl(0x00FF0000))) {
case __constant_htonl(0x00010000):
type |= IPV6_ADDR_LOOPBACK;
break;
case __constant_htonl(0x00020000):
type |= IPV6_ADDR_LINKLOCAL;
break;
case __constant_htonl(0x00050000):
type |= IPV6_ADDR_SITELOCAL;
break;
};
return type;
}
if ((st & htonl(0xFFC00000)) == htonl(0xFE800000))
return (IPV6_ADDR_LINKLOCAL | IPV6_ADDR_UNICAST);
if ((st & htonl(0xFFC00000)) == htonl(0xFEC00000))
return (IPV6_ADDR_SITELOCAL | IPV6_ADDR_UNICAST);
if ((addr->s6_addr32[0] | addr->s6_addr32[1]) == 0) {
if (addr->s6_addr32[2] == 0) {
if (addr->s6_addr32[3] == 0)
return IPV6_ADDR_ANY;
if (addr->s6_addr32[3] == htonl(0x00000001))
return (IPV6_ADDR_LOOPBACK | IPV6_ADDR_UNICAST);
return (IPV6_ADDR_COMPATv4 | IPV6_ADDR_UNICAST);
}
if (addr->s6_addr32[2] == htonl(0x0000ffff))
return IPV6_ADDR_MAPPED;
}
return IPV6_ADDR_RESERVED;
}
static void addrconf_add_lroute(struct net_device *dev)
{
struct in6_addr addr;
ipv6_addr_set(&addr, __constant_htonl(0xFE800000), 0, 0, 0);
addrconf_prefix_route(&addr, 10, dev, 0, RTF_ADDRCONF);
}
static void sit_add_v4_addrs(struct inet6_dev *idev)
{
struct inet6_ifaddr * ifp;
struct in6_addr addr;
struct device *dev;
int scope;
memset(&addr, 0, sizeof(struct in6_addr));
memcpy(&addr.s6_addr32[3], idev->dev->dev_addr, 4);
if (idev->dev->flags&IFF_POINTOPOINT) {
addr.s6_addr32[0] = __constant_htonl(0xfe800000);
scope = IFA_LINK;
} else {
scope = IPV6_ADDR_COMPATv4;
}
if (addr.s6_addr32[3]) {
ifp = ipv6_add_addr(idev, &addr, scope);
if (ifp) {
ifp->flags |= ADDR_PERMANENT;
ifp->prefix_len = 128;
ipv6_ifa_notify(RTM_NEWADDR, ifp);
}
return;
}
for (dev = dev_base; dev != NULL; dev = dev->next) {
if (dev->ip_ptr && (dev->flags & IFF_UP)) {
struct in_device * in_dev = dev->ip_ptr;
struct in_ifaddr * ifa;
int flag = scope;
for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
addr.s6_addr32[3] = ifa->ifa_local;
if (ifa->ifa_scope == RT_SCOPE_LINK)
continue;
if (ifa->ifa_scope >= RT_SCOPE_HOST) {
if (idev->dev->flags&IFF_POINTOPOINT)
continue;
flag |= IFA_HOST;
}
ifp = ipv6_add_addr(idev, &addr, flag);
if (ifp == NULL)
continue;
if (idev->dev->flags&IFF_POINTOPOINT)
ifp->prefix_len = 10;
else
ifp->prefix_len = 96;
ifp->flags |= ADDR_PERMANENT;
ipv6_ifa_notify(RTM_NEWADDR, ifp);
}
}
}
}
static inline u32 *
xdr_encode_sattr(u32 *p, struct iattr *attr)
{
const u32 not_set = __constant_htonl(0xFFFFFFFF);
*p++ = (attr->ia_valid & ATTR_MODE) ? htonl(attr->ia_mode) : not_set;
*p++ = (attr->ia_valid & ATTR_UID) ? htonl(attr->ia_uid) : not_set;
*p++ = (attr->ia_valid & ATTR_GID) ? htonl(attr->ia_gid) : not_set;
*p++ = (attr->ia_valid & ATTR_SIZE) ? htonl(attr->ia_size) : not_set;
if (attr->ia_valid & ATTR_ATIME_SET) {
p = xdr_encode_time(p, &attr->ia_atime);
} else if (attr->ia_valid & ATTR_ATIME) {
p = xdr_encode_current_server_time(p, &attr->ia_atime);
} else {
*p++ = not_set;
*p++ = not_set;
}
if (attr->ia_valid & ATTR_MTIME_SET) {
p = xdr_encode_time(p, &attr->ia_mtime);
} else if (attr->ia_valid & ATTR_MTIME) {
p = xdr_encode_current_server_time(p, &attr->ia_mtime);
} else {
*p++ = not_set;
*p++ = not_set;
}
return p;
}
static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *resp)
{
struct cb_compound_hdr_arg hdr_arg = { 0 };
struct cb_compound_hdr_res hdr_res = { NULL };
struct xdr_stream xdr_in, xdr_out;
__be32 *p, status;
struct cb_process_state cps = {
.drc_status = 0,
.clp = NULL,
.slotid = NFS4_NO_SLOT,
.net = rqstp->rq_xprt->xpt_net,
};
unsigned int nops = 0;
dprintk("%s: start\n", __func__);
xdr_init_decode(&xdr_in, &rqstp->rq_arg, rqstp->rq_arg.head[0].iov_base);
p = (__be32*)((char *)rqstp->rq_res.head[0].iov_base + rqstp->rq_res.head[0].iov_len);
xdr_init_encode(&xdr_out, &rqstp->rq_res, p);
status = decode_compound_hdr_arg(&xdr_in, &hdr_arg);
if (status == __constant_htonl(NFS4ERR_RESOURCE))
return rpc_garbage_args;
if (hdr_arg.minorversion == 0) {
cps.clp = nfs4_find_client_ident(rqstp->rq_xprt->xpt_net, hdr_arg.cb_ident);
if (!cps.clp || !check_gss_callback_principal(cps.clp, rqstp))
return rpc_drop_reply;
}
hdr_res.taglen = hdr_arg.taglen;
hdr_res.tag = hdr_arg.tag;
if (encode_compound_hdr_res(&xdr_out, &hdr_res) != 0)
return rpc_system_err;
while (status == 0 && nops != hdr_arg.nops) {
status = process_op(hdr_arg.minorversion, nops, rqstp,
&xdr_in, argp, &xdr_out, resp, &cps);
nops++;
}
if (unlikely(status == htonl(NFS4ERR_RESOURCE_HDR))) {
status = htonl(NFS4ERR_RESOURCE);
nops--;
}
*hdr_res.status = status;
*hdr_res.nops = htonl(nops);
nfs4_cb_free_slot(&cps);
nfs_put_client(cps.clp);
dprintk("%s: done, status = %u\n", __func__, ntohl(status));
return rpc_success;
}
static struct callback_op callback_ops[] = {
[0] = {
.res_maxsize = CB_OP_HDR_RES_MAXSZ,
},
/* check for PPLive & PPStream UDP pkg */
int
udp_search_pp (unsigned char *t, int packet_len)
{
if (get_u16(t,0) == __constant_htons(0xe903) && get_u32(t,4) == __constant_htonl(0x98ab0102)) return (IPP2P_PP * 100 + 11);
if ( (memcmp(t+8,"[bsinfo]",8) ==0) && (*(t+16) == 0x0d) && (*(t+17) == 0x0a) && (memcmp(t+18,"mf=",3) ==0) ) return (IPP2P_PP * 100 + 12);
if ( (packet_len == 22 || packet_len == 8) && get_u16(t,0) == __constant_htons(0x0909) && (*(t+2) == 0x08 || *(t+2) == 0x09) && ((*(t+3) == 0x00) || (*(t+3) == 0x01)) ) return (IPP2P_PP * 100 + 13);
if ( packet_len == (*t+4) && get_u32(t,1) == __constant_htonl(0x00430000)) return (IPP2P_PP * 100 + 15 );
/* QQLive */
if ( (packet_len < 150) && (*t == 0xfe) && (*(t+1) == *(t+4)) && get_u16(t,2) == __constant_htons(0x0000) ) return (IPP2P_PP * 100 + 14);
/* feidian */
if ( (packet_len == 112 || packet_len == 116) && get_u32(t,0) == __constant_htonl(0x1c1c3201) && (get_u16(t,4) == __constant_htons(0x0b00) || get_u16(t,4) == __constant_htons(0x0c00))) return (IPP2P_PP * 100 + 16);
/* POCO */
if (packet_len == 6 && get_u16(t,0) == __constant_htons(0x8095) && (get_u16(t,2) == __constant_htons(0x0462) || get_u16(t,2) == __constant_htons(0x0565)) ) return (IPP2P_PP * 100 + 17);
if (packet_len == 22 && get_u16(t,0) == __constant_htons(0x8094) && (get_u16(t,2) == __constant_htons(0x0429) || get_u16(t,4) == __constant_htons(0x0429)) ) return (IPP2P_PP * 100 + 18);
/* QVOD */
if (packet_len == ntohl(get_u32(t,0)) && memcmp((t + 14),"QVOD protocol",13) == 0) return (IPP2P_PP * 100 + 19);
return 0;
}
static void addrconf_add_mroute(struct net_device *dev)
{
struct in6_rtmsg rtmsg;
memset(&rtmsg, 0, sizeof(rtmsg));
ipv6_addr_set(&rtmsg.rtmsg_dst,
__constant_htonl(0xFF000000), 0, 0, 0);
rtmsg.rtmsg_dst_len = 8;
rtmsg.rtmsg_metric = IP6_RT_PRIO_ADDRCONF;
rtmsg.rtmsg_ifindex = dev->ifindex;
rtmsg.rtmsg_flags = RTF_UP|RTF_ADDRCONF;
rtmsg.rtmsg_type = RTMSG_NEWROUTE;
ip6_route_add(&rtmsg);
}
int ip_wccp_rcv(struct sk_buff *skb)
{
u32 *gre_hdr;
struct iphdr *iph;
if (!pskb_may_pull(skb, 16))
goto drop;
iph = skb->nh.iph;
gre_hdr = (u32 *)skb->h.raw;
if(*gre_hdr != __constant_htonl(WCCP_PROTOCOL_TYPE))
goto drop;
skb->mac.raw = skb->nh.raw;
/* WCCP2 puts an extra 4 octets into the header, but uses the same
* encapsulation type; if it looks as if the first octet of the packet
* isn't the beginning of an IPv4 header, assume it's WCCP2.
* This should be safe as these bits are reserved in the WCCPv2 header
* and always zero in WCCPv2.
*/
if ((skb->h.raw[WCCP_GRE_LEN] & 0xF0) != 0x40) {
skb->nh.raw = pskb_pull(skb, WCCP_GRE_LEN + WCCP2_GRE_EXTRA);
} else {
skb->nh.raw = pskb_pull(skb, WCCP_GRE_LEN);
}
if (skb->len <= 0)
goto drop;
memset(&(IPCB(skb)->opt), 0, sizeof(struct ip_options));
skb->protocol = __constant_htons(ETH_P_IP);
skb->pkt_type = PACKET_HOST;
dst_release(skb->dst);
skb->dst = NULL;
#ifdef CONFIG_NETFILTER
nf_conntrack_put(skb->nfct);
skb->nfct = NULL;
#ifdef CONFIG_NETFILTER_DEBUG
skb->nf_debug = 0;
#endif
#endif
ip_wccp_ecn_decapsulate(iph, skb);
netif_rx(skb);
return(0);
drop:
kfree_skb(skb);
return(0);
}
static int hippi_header(struct sk_buff *skb, struct net_device *dev,
unsigned short type, void *daddr, void *saddr,
unsigned len)
{
struct hippi_hdr *hip = (struct hippi_hdr *)skb_push(skb, HIPPI_HLEN);
struct hippi_cb *hcb = (struct hippi_cb *) skb->cb;
if (!len){
len = skb->len - HIPPI_HLEN;
printk("hippi_header(): length not supplied\n");
}
/*
* Due to the stupidity of the little endian byte-order we
* have to set the fp field this way.
*/
hip->fp.fixed = __constant_htonl(0x04800018);
hip->fp.d2_size = htonl(len + 8);
hip->le.fc = 0;
hip->le.double_wide = 0; /* only HIPPI 800 for the time being */
hip->le.message_type = 0; /* Data PDU */
hip->le.dest_addr_type = 2; /* 12 bit SC address */
hip->le.src_addr_type = 2; /* 12 bit SC address */
memcpy(hip->le.src_switch_addr, dev->dev_addr + 3, 3);
memset(&hip->le.reserved, 0, 16);
hip->snap.dsap = HIPPI_EXTENDED_SAP;
hip->snap.ssap = HIPPI_EXTENDED_SAP;
hip->snap.ctrl = HIPPI_UI_CMD;
hip->snap.oui[0] = 0x00;
hip->snap.oui[1] = 0x00;
hip->snap.oui[2] = 0x00;
hip->snap.ethertype = htons(type);
if (daddr)
{
memcpy(hip->le.dest_switch_addr, daddr + 3, 3);
memcpy(&hcb->ifield, daddr + 2, 4);
return HIPPI_HLEN;
}
hcb->ifield = 0;
return -((int)HIPPI_HLEN);
}
/*
* Decode, process and encode a COMPOUND
*/
static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *resp)
{
struct cb_compound_hdr_arg hdr_arg = { 0 };
struct cb_compound_hdr_res hdr_res = { NULL };
struct xdr_stream xdr_in, xdr_out;
__be32 *p;
__be32 status, drc_status = 0;
unsigned int nops = 0;
dprintk("%s: start\n", __func__);
xdr_init_decode(&xdr_in, &rqstp->rq_arg, rqstp->rq_arg.head[0].iov_base);
p = (__be32*)((char *)rqstp->rq_res.head[0].iov_base + rqstp->rq_res.head[0].iov_len);
xdr_init_encode(&xdr_out, &rqstp->rq_res, p);
status = decode_compound_hdr_arg(&xdr_in, &hdr_arg);
if (status == __constant_htonl(NFS4ERR_RESOURCE))
return rpc_garbage_args;
hdr_res.taglen = hdr_arg.taglen;
hdr_res.tag = hdr_arg.tag;
if (encode_compound_hdr_res(&xdr_out, &hdr_res) != 0)
return rpc_system_err;
while (status == 0 && nops != hdr_arg.nops) {
status = process_op(hdr_arg.minorversion, nops, rqstp,
&xdr_in, argp, &xdr_out, resp, &drc_status);
nops++;
}
/* Buffer overflow in decode_ops_hdr or encode_ops_hdr. Return
* resource error in cb_compound status without returning op */
if (unlikely(status == htonl(NFS4ERR_RESOURCE_HDR))) {
status = htonl(NFS4ERR_RESOURCE);
nops--;
}
*hdr_res.status = status;
*hdr_res.nops = htonl(nops);
dprintk("%s: done, status = %u\n", __func__, ntohl(status));
return rpc_success;
}
static int ebt_target_idnat(struct sk_buff **pskb, unsigned int hooknr,
const struct net_device *in, const struct net_device *out,
const void *data, unsigned int datalen)
{
struct ebt_inat_info *info = (struct ebt_inat_info *)data;
uint32_t ip;
int index;
struct ebt_inat_tuple *tuple;
if (!get_ip_dst(*pskb, &ip)) {
return info->target;
}
if ((ip & __constant_htonl(0xffffff00)) != info->ip_subnet) {
return info->target;
}
index = ((unsigned char*)&ip)[3];
tuple = &info->a[index];
if (!tuple->enabled) {
return info->target;
}
memcpy(((**pskb).mac.ethernet)->h_dest, tuple->mac,
ETH_ALEN * sizeof(unsigned char));
if ((**pskb).mac.ethernet->h_proto == __constant_htons(ETH_P_ARP)) {
memcpy(
(**pskb).nh.raw + sizeof(struct arphdr) +
(**pskb).nh.arph->ar_hln +
(**pskb).nh.arph->ar_pln, tuple->mac, ETH_ALEN);
}
return tuple->target;
}
/*Search for BitTorrent commands*/
int
search_bittorrent (const unsigned char *payload, const u16 plen)
{
if (plen > 20)
{
/* test for match 0x13+"BitTorrent protocol" */
if (*payload == 0x13)
{
if (memcmp(payload+1, "BitTorrent protocol", 19) == 0) return (IPP2P_BIT * 100);
}
/* get tracker commandos, all starts with GET /
* then it can follow: scrape| announce
* and then ?hash_info=
*/
if (memcmp(payload,"GET /",5) == 0)
{
/* message scrape */
if ( memcmp(payload+5,"scrape?info_hash=",17)==0 ) return (IPP2P_BIT * 100 + 1);
/* message announce */
if ( memcmp(payload+5,"announce",8)==0 ) return (IPP2P_BIT * 100 + 2);
if ( memcmp(payload+5,"?info_hash=",11)==0 ) return (IPP2P_BIT * 100 + 3);
if ( memcmp(payload+5,"data?fid=",9)==0 ) return (IPP2P_BIT * 100 + 5);
}
}
else
{
/* bitcomet encryptes the first packet, so we have to detect another
* one later in the flow */
/* first try failed, too many missdetections */
//if ( size == 5 && get_u32(t,0) == __constant_htonl(1) && t[4] < 3) return (IPP2P_BIT * 100 + 3);
/* second try: block request packets */
if ( plen == 17 && get_u32(payload,0) == __constant_htonl(0x0d) && *(payload+4) == 0x06 && get_u32(payload,13) == __constant_htonl(0x4000) ) return (IPP2P_BIT * 100 + 4);
}
return 0;
}
/*Search for UDP BitTorrent commands*/
int
udp_search_bit (unsigned char *haystack, int packet_len)
{
switch(packet_len)
{
case 24:
/* ^ 00 00 04 17 27 10 19 80 */
if ((ntohl(get_u32(haystack, 8)) == 0x00000417) && (ntohl(get_u32(haystack, 12)) == 0x27101980))
return (IPP2P_BIT * 100 + 50);
break;
case 44:
if (get_u32(haystack, 16) == __constant_htonl(0x00000400) && get_u32(haystack, 36) == __constant_htonl(0x00000104))
return (IPP2P_BIT * 100 + 51);
if (get_u32(haystack, 16) == __constant_htonl(0x00000400))
return (IPP2P_BIT * 100 + 61);
break;
case 65:
if (get_u32(haystack, 16) == __constant_htonl(0x00000404) && get_u32(haystack, 36) == __constant_htonl(0x00000104))
return (IPP2P_BIT * 100 + 52);
if (get_u32(haystack, 16) == __constant_htonl(0x00000404))
return (IPP2P_BIT * 100 + 62);
break;
case 67:
if (get_u32(haystack, 16) == __constant_htonl(0x00000406) && get_u32(haystack, 36) == __constant_htonl(0x00000104))
return (IPP2P_BIT * 100 + 53);
if (get_u32(haystack, 16) == __constant_htonl(0x00000406))
return (IPP2P_BIT * 100 + 63);
break;
case 211:
if (get_u32(haystack, 8) == __constant_htonl(0x00000405))
return (IPP2P_BIT * 100 + 54);
break;
case 29:
if ((get_u32(haystack, 8) == __constant_htonl(0x00000401)))
return (IPP2P_BIT * 100 + 55);
break;
case 52:
if (get_u32(haystack,8) == __constant_htonl(0x00000827) &&
get_u32(haystack,12) == __constant_htonl(0x37502950))
return (IPP2P_BIT * 100 + 80);
break;
default:
/* this packet does not have a constant size */
if (packet_len >= 40 && get_u32(haystack, 16) == __constant_htonl(0x00000402) && get_u32(haystack, 36) == __constant_htonl(0x00000104))
return (IPP2P_BIT * 100 + 56);
break;
}
/* some extra-bitcomet rules:
* "d1:" [a|r] "d2:id20:"
*/
if (packet_len > 30 && get_u8(haystack, 8) == 'd' && get_u8(haystack, 9) == '1' && get_u8(haystack, 10) == ':' )
{
if (get_u8(haystack, 11) == 'a' || get_u8(haystack, 11) == 'r')
{
if (memcmp(haystack+12,"d2:id20:",8)==0)
return (IPP2P_BIT * 100 + 57);
}
}
#if 0
/* bitlord rules */
/* packetlen must be bigger than 40 */
/* first 4 bytes are zero */
if (packet_len > 40 && get_u32(haystack, 8) == 0x00000000)
{
/* first rule: 00 00 00 00 01 00 00 xx xx xx xx 00 00 00 00*/
if (get_u32(haystack, 12) == 0x00000000 &&
get_u32(haystack, 16) == 0x00010000 &&
get_u32(haystack, 24) == 0x00000000 )
return (IPP2P_BIT * 100 + 71);
/* 00 01 00 00 0d 00 00 xx xx xx xx 00 00 00 00*/
if (get_u32(haystack, 12) == 0x00000001 &&
get_u32(haystack, 16) == 0x000d0000 &&
get_u32(haystack, 24) == 0x00000000 )
return (IPP2P_BIT * 100 + 71);
}
#endif
return 0;
}/*udp_search_bit*/
static void tcp_sack(const struct sk_buff *skb, unsigned int dataoff,
struct tcphdr *tcph, __u32 *sack)
{
unsigned char buff[(15 * 4) - sizeof(struct tcphdr)];
unsigned char *ptr;
int length = (tcph->doff*4) - sizeof(struct tcphdr);
__u32 tmp;
if (!length)
return;
ptr = skb_header_pointer(skb, dataoff + sizeof(struct tcphdr),
length, buff);
BUG_ON(ptr == NULL);
/* Fast path for timestamp-only option */
if (length == TCPOLEN_TSTAMP_ALIGNED*4
&& *(__be32 *)ptr ==
__constant_htonl((TCPOPT_NOP << 24)
| (TCPOPT_NOP << 16)
| (TCPOPT_TIMESTAMP << 8)
| TCPOLEN_TIMESTAMP))
return;
while (length > 0) {
int opcode = *ptr++;
int opsize, i;
switch (opcode) {
case TCPOPT_EOL:
return;
case TCPOPT_NOP: /* Ref: RFC 793 section 3.1 */
length--;
continue;
default:
opsize = *ptr++;
if (opsize < 2) /* "silly options" */
return;
if (opsize > length)
break; /* don't parse partial options */
if (opcode == TCPOPT_SACK
&& opsize >= (TCPOLEN_SACK_BASE
+ TCPOLEN_SACK_PERBLOCK)
&& !((opsize - TCPOLEN_SACK_BASE)
% TCPOLEN_SACK_PERBLOCK)) {
for (i = 0;
i < (opsize - TCPOLEN_SACK_BASE);
i += TCPOLEN_SACK_PERBLOCK) {
tmp = ntohl(*((__be32 *)(ptr+i)+1));
if (after(tmp, *sack))
*sack = tmp;
}
return;
}
ptr += opsize - 2;
length -= opsize;
}
}
}
int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
struct ipv6_txoptions *opt)
{
struct ipv6_pinfo * np = sk ? &sk->net_pinfo.af_inet6 : NULL;
struct in6_addr *first_hop = fl->nl_u.ip6_u.daddr;
struct dst_entry *dst = skb->dst;
struct ipv6hdr *hdr;
u8 proto = fl->proto;
int seg_len = skb->len;
int hlimit;
if (opt) {
int head_room;
/* First: exthdrs may take lots of space (~8K for now)
MAX_HEADER is not enough.
*/
head_room = opt->opt_nflen + opt->opt_flen;
seg_len += head_room;
head_room += sizeof(struct ipv6hdr) + ((dst->dev->hard_header_len + 15)&~15);
if (skb_headroom(skb) < head_room) {
struct sk_buff *skb2 = skb_realloc_headroom(skb, head_room);
kfree_skb(skb);
skb = skb2;
if (skb == NULL)
return -ENOBUFS;
if (sk)
skb_set_owner_w(skb, sk);
}
if (opt->opt_flen)
ipv6_push_frag_opts(skb, opt, &proto);
if (opt->opt_nflen)
ipv6_push_nfrag_opts(skb, opt, &proto, &first_hop);
}
hdr = skb->nh.ipv6h = (struct ipv6hdr*)skb_push(skb, sizeof(struct ipv6hdr));
/*
* Fill in the IPv6 header
*/
*(u32*)hdr = __constant_htonl(0x60000000) | fl->fl6_flowlabel;
hlimit = -1;
if (np)
hlimit = np->hop_limit;
if (hlimit < 0)
hlimit = ((struct rt6_info*)dst)->rt6i_hoplimit;
hdr->payload_len = htons(seg_len);
hdr->nexthdr = proto;
hdr->hop_limit = hlimit;
ipv6_addr_copy(&hdr->saddr, fl->nl_u.ip6_u.saddr);
ipv6_addr_copy(&hdr->daddr, first_hop);
if (skb->len <= dst->pmtu) {
IP6_INC_STATS(Ip6OutRequests);
return NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, dst->dev, ip6_maybe_reroute);
}
if (net_ratelimit())
printk(KERN_DEBUG "IPv6: sending pkt_too_big to self\n");
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, dst->pmtu, skb->dev);
kfree_skb(skb);
return -EMSGSIZE;
}
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <infiniband/ssa_db.h>
#include <infiniband/ssa_ipdb.h>
#include <asm/byteorder.h>
const struct db_table_def ip_def_tbl[] = {
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DATA, 0, { 0, IPDB_TBL_ID_IPv4, 0 },
"IPv4", __constant_htonl(sizeof(struct ipdb_ipv4)), 0
},
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DEF, 0, { 0, IPDB_TBL_ID_MAX + IPDB_TBL_ID_IPv4, 0 },
"IPv4 fields", __constant_htonl(sizeof(struct db_field_def)), __constant_htonl(IPDB_TBL_ID_IPv4)
},
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DATA, 0, { 0, IPDB_TBL_ID_IPv6, 0 },
"IPv6", __constant_htonl(sizeof(struct ipdb_ipv6)), 0
},
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DEF, 0, { 0, IPDB_TBL_ID_MAX + IPDB_TBL_ID_IPv6, 0 },
"IPv6 fields", __constant_htonl(sizeof(struct db_field_def)), __constant_htonl(IPDB_TBL_ID_IPv6)
},
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DATA, 0, { 0, IPDB_TBL_ID_NAME, 0 },
"NAME", __constant_htonl(sizeof(struct ipdb_name)), 0
},
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DEF, 0, { 0, IPDB_TBL_ID_MAX + IPDB_TBL_ID_NAME, 0 },
"NAME fields", __constant_htonl(sizeof(struct db_field_def)), __constant_htonl(IPDB_TBL_ID_NAME)
/*Search for UDP eDonkey/eMule/Kad commands*/
int
udp_search_edk (unsigned char *t, int packet_len)
{
/* Vagaa */
if(packet_len == 4 && get_u32(t,0) == __constant_htonl(0xff0a0000)) return (IPP2P_EDK * 100 + 42);
if(packet_len == 8 && get_u16(t,0) == __constant_htons(0xff0a) && get_u16(t,4) == __constant_htons(0x0c02)) return (IPP2P_EDK * 100 + 47);
if(memcmp(t+12,"POST / HTTP/1.1",15) == 0 && memcmp(t+29,"Host: vagaa.com",15) == 0 && memcmp(t+46,"VAGAA-OPERATION:",16) == 0) return (IPP2P_EDK * 100 + 48);
switch (*t) {
case 0xf1:
{ if ( get_u16(t,3) == __constant_htons(0x0000) )
{
/* Search Result */
if(packet_len == 22 && *(t+1) == 0x11) return (IPP2P_EDK * 100 + 40);
if(packet_len == 32 && *(t+1) == 0x00) return (IPP2P_EDK * 100 + 41);
/* Identify Reply */
if(packet_len == 26 && *(t+1) == 0x15) return (IPP2P_EDK * 100 + 43);
/* Identify Ack */
if(packet_len == 27 && *(t+1) == 0x16) return (IPP2P_EDK * 100 + 44);
if(packet_len == 6 && *(t+1) == 0x01) return (IPP2P_EDK * 100 + 45);
if(packet_len == 144 && *(t+1) == 0x8b) return (IPP2P_EDK * 100 + 46);
}
break;
}
case 0xe3:
{ /*edonkey*/
switch (*(t+1))
{
/* client -> server status request */
case 0x96:
if (packet_len > 5) return ((IPP2P_EDK * 100) + 50);
break;
/* server -> client status request */
case 0x97: if (packet_len > 33) return ((IPP2P_EDK * 100) + 51);
break;
/* server description request */
/* e3 2a ff f0 .. | size == 6 */
case 0xa2: if ( (packet_len > 5) && ( get_u16(t,2) == __constant_htons(0xfff0) ) ) return ((IPP2P_EDK * 100) + 52);
break;
/* server description response */
/* e3 a3 ff f0 .. | size > 40 && size < 200 */
//case 0xa3: return ((IPP2P_EDK * 100) + 53);
// break;
case 0x9a: if (packet_len > 17) return ((IPP2P_EDK * 100) + 54);
break;
case 0x9b: if (packet_len > 24) return ((IPP2P_EDK * 100) + 56);
break;
case 0x92: if (packet_len > 9) return ((IPP2P_EDK * 100) + 55);
break;
}
break;
}
case 0xe4:
{
switch (*(t+1))
{
case 0x01: if (packet_len == 2) return ((IPP2P_EDK * 100) + 70);
break;
/* e4 19 .. Firewall Connection ACK */
case 0x19: if (packet_len > 21 ) return ((IPP2P_EDK * 100) + 71);
break;
/* e4 20 .. | size == 43 */
case 0x20: if ((packet_len > 33) && (*(t+2) != 0x00) && (*(t+33) != 0x00)) return ((IPP2P_EDK * 100) + 60);
break;
case 0x21: if ((packet_len > 33) && (*(t+2) != 0x00) && (*(t+33) != 0x00)) return ((IPP2P_EDK * 100) + 60);
break;
/* e4 00 .. 00 | size == 35 ? */
case 0x00: if ((packet_len > 26) && (*(t+26) == 0x00)) return ((IPP2P_EDK * 100) + 61);
break;
/* e4 10 .. 00 | size == 35 ? Search Info */
case 0x10: if ((packet_len > 26) && (*(t+26) == 0x00)) return ((IPP2P_EDK * 100) + 62);
break;
/* e4 11 .. Search Result */
case 0x11: if ((packet_len > 26) && (*(t+26) == 0x00)) return ((IPP2P_EDK * 100) + 62);
break;
/* e4 18 .. 00 | size == 35 ? */
case 0x18: if ((packet_len > 26) && (*(t+26) == 0x00)) return ((IPP2P_EDK * 100) + 63);
break;
/* e4 52 .. | size = 44 */
case 0x52: if (packet_len > 35 ) return ((IPP2P_EDK * 100) + 64);
break;
/* e4 58 .. | size == 6 */
case 0x58: if (packet_len > 5 ) return ((IPP2P_EDK * 100) + 65);
break;
/* e4 59 .. | size == 2 */
case 0x59: if (packet_len > 1 )return ((IPP2P_EDK * 100) + 66);
break;
/* e4 28 .. | packet_len == 52,77,102,127... */
case 0x28: if (((packet_len-44) % 25) == 0) return ((IPP2P_EDK * 100) + 67);
break;
case 0x29: if (((packet_len-44) % 25) == 0) return ((IPP2P_EDK * 100) + 67);
break;
/* e4 50 xx xx | size == 4 */
case 0x50: if (packet_len > 3) return ((IPP2P_EDK * 100) + 68);
break;
/* e4 40 xx xx | size == 48 */
case 0x40: if (packet_len > 47) return ((IPP2P_EDK * 100) + 69);
break;
}
break;
}
} /* end of switch (*t) */
return 0;
}/*udp_search_edk*/
void
qla25xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
{
int rval;
uint32_t cnt;
uint32_t risc_address;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
uint32_t __iomem *dmp_reg;
uint32_t *iter_reg;
uint16_t __iomem *mbx_reg;
unsigned long flags;
struct qla25xx_fw_dump *fw;
uint32_t ext_mem_cnt;
void *nxt;
risc_address = ext_mem_cnt = 0;
flags = 0;
if (!hardware_locked)
spin_lock_irqsave(&ha->hardware_lock, flags);
if (!ha->fw_dump) {
qla_printk(KERN_WARNING, ha,
"No buffer available for dump!!!\n");
goto qla25xx_fw_dump_failed;
}
if (ha->fw_dumped) {
qla_printk(KERN_WARNING, ha,
"Firmware has been previously dumped (%p) -- ignoring "
"request...\n", ha->fw_dump);
goto qla25xx_fw_dump_failed;
}
fw = &ha->fw_dump->isp.isp25;
qla2xxx_prep_dump(ha, ha->fw_dump);
ha->fw_dump->version = __constant_htonl(2);
fw->host_status = htonl(RD_REG_DWORD(®->host_status));
/* Pause RISC. */
rval = qla24xx_pause_risc(reg);
if (rval != QLA_SUCCESS)
goto qla25xx_fw_dump_failed_0;
/* Host/Risc registers. */
iter_reg = fw->host_risc_reg;
iter_reg = qla24xx_read_window(reg, 0x7000, 16, iter_reg);
qla24xx_read_window(reg, 0x7010, 16, iter_reg);
/* PCIe registers. */
WRT_REG_DWORD(®->iobase_addr, 0x7C00);
RD_REG_DWORD(®->iobase_addr);
WRT_REG_DWORD(®->iobase_window, 0x01);
dmp_reg = ®->iobase_c4;
fw->pcie_regs[0] = htonl(RD_REG_DWORD(dmp_reg++));
fw->pcie_regs[1] = htonl(RD_REG_DWORD(dmp_reg++));
fw->pcie_regs[2] = htonl(RD_REG_DWORD(dmp_reg));
fw->pcie_regs[3] = htonl(RD_REG_DWORD(®->iobase_window));
WRT_REG_DWORD(®->iobase_window, 0x00);
RD_REG_DWORD(®->iobase_window);
/* Host interface registers. */
dmp_reg = ®->flash_addr;
for (cnt = 0; cnt < sizeof(fw->host_reg) / 4; cnt++)
fw->host_reg[cnt] = htonl(RD_REG_DWORD(dmp_reg++));
/* Disable interrupts. */
WRT_REG_DWORD(®->ictrl, 0);
RD_REG_DWORD(®->ictrl);
/* Shadow registers. */
WRT_REG_DWORD(®->iobase_addr, 0x0F70);
RD_REG_DWORD(®->iobase_addr);
WRT_REG_DWORD(®->iobase_select, 0xB0000000);
fw->shadow_reg[0] = htonl(RD_REG_DWORD(®->iobase_sdata));
WRT_REG_DWORD(®->iobase_select, 0xB0100000);
fw->shadow_reg[1] = htonl(RD_REG_DWORD(®->iobase_sdata));
WRT_REG_DWORD(®->iobase_select, 0xB0200000);
fw->shadow_reg[2] = htonl(RD_REG_DWORD(®->iobase_sdata));
WRT_REG_DWORD(®->iobase_select, 0xB0300000);
fw->shadow_reg[3] = htonl(RD_REG_DWORD(®->iobase_sdata));
WRT_REG_DWORD(®->iobase_select, 0xB0400000);
fw->shadow_reg[4] = htonl(RD_REG_DWORD(®->iobase_sdata));
WRT_REG_DWORD(®->iobase_select, 0xB0500000);
fw->shadow_reg[5] = htonl(RD_REG_DWORD(®->iobase_sdata));
WRT_REG_DWORD(®->iobase_select, 0xB0600000);
fw->shadow_reg[6] = htonl(RD_REG_DWORD(®->iobase_sdata));
WRT_REG_DWORD(®->iobase_select, 0xB0700000);
fw->shadow_reg[7] = htonl(RD_REG_DWORD(®->iobase_sdata));
WRT_REG_DWORD(®->iobase_select, 0xB0800000);
fw->shadow_reg[8] = htonl(RD_REG_DWORD(®->iobase_sdata));
WRT_REG_DWORD(®->iobase_select, 0xB0900000);
fw->shadow_reg[9] = htonl(RD_REG_DWORD(®->iobase_sdata));
WRT_REG_DWORD(®->iobase_select, 0xB0A00000);
fw->shadow_reg[10] = htonl(RD_REG_DWORD(®->iobase_sdata));
/* RISC I/O register. */
WRT_REG_DWORD(®->iobase_addr, 0x0010);
fw->risc_io_reg = htonl(RD_REG_DWORD(®->iobase_window));
/* Mailbox registers. */
mbx_reg = ®->mailbox0;
for (cnt = 0; cnt < sizeof(fw->mailbox_reg) / 2; cnt++)
fw->mailbox_reg[cnt] = htons(RD_REG_WORD(mbx_reg++));
/* Transfer sequence registers. */
iter_reg = fw->xseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xBF00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF60, 16, iter_reg);
qla24xx_read_window(reg, 0xBF70, 16, iter_reg);
iter_reg = fw->xseq_0_reg;
iter_reg = qla24xx_read_window(reg, 0xBFC0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBFD0, 16, iter_reg);
qla24xx_read_window(reg, 0xBFE0, 16, iter_reg);
qla24xx_read_window(reg, 0xBFF0, 16, fw->xseq_1_reg);
/* Receive sequence registers. */
iter_reg = fw->rseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xFF00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF60, 16, iter_reg);
qla24xx_read_window(reg, 0xFF70, 16, iter_reg);
iter_reg = fw->rseq_0_reg;
iter_reg = qla24xx_read_window(reg, 0xFFC0, 16, iter_reg);
qla24xx_read_window(reg, 0xFFD0, 16, iter_reg);
qla24xx_read_window(reg, 0xFFE0, 16, fw->rseq_1_reg);
qla24xx_read_window(reg, 0xFFF0, 16, fw->rseq_2_reg);
/* Auxiliary sequence registers. */
iter_reg = fw->aseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xB000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB060, 16, iter_reg);
qla24xx_read_window(reg, 0xB070, 16, iter_reg);
iter_reg = fw->aseq_0_reg;
iter_reg = qla24xx_read_window(reg, 0xB0C0, 16, iter_reg);
qla24xx_read_window(reg, 0xB0D0, 16, iter_reg);
qla24xx_read_window(reg, 0xB0E0, 16, fw->aseq_1_reg);
qla24xx_read_window(reg, 0xB0F0, 16, fw->aseq_2_reg);
/* Command DMA registers. */
qla24xx_read_window(reg, 0x7100, 16, fw->cmd_dma_reg);
/* Queues. */
iter_reg = fw->req0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7200, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++)
*iter_reg++ = htonl(RD_REG_DWORD(dmp_reg++));
iter_reg = fw->resp0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7300, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++)
*iter_reg++ = htonl(RD_REG_DWORD(dmp_reg++));
iter_reg = fw->req1_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7400, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++)
*iter_reg++ = htonl(RD_REG_DWORD(dmp_reg++));
/* Transmit DMA registers. */
iter_reg = fw->xmt0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7600, 16, iter_reg);
qla24xx_read_window(reg, 0x7610, 16, iter_reg);
iter_reg = fw->xmt1_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7620, 16, iter_reg);
qla24xx_read_window(reg, 0x7630, 16, iter_reg);
iter_reg = fw->xmt2_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7640, 16, iter_reg);
qla24xx_read_window(reg, 0x7650, 16, iter_reg);
iter_reg = fw->xmt3_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7660, 16, iter_reg);
qla24xx_read_window(reg, 0x7670, 16, iter_reg);
iter_reg = fw->xmt4_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7680, 16, iter_reg);
qla24xx_read_window(reg, 0x7690, 16, iter_reg);
qla24xx_read_window(reg, 0x76A0, 16, fw->xmt_data_dma_reg);
/* Receive DMA registers. */
iter_reg = fw->rcvt0_data_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7700, 16, iter_reg);
qla24xx_read_window(reg, 0x7710, 16, iter_reg);
iter_reg = fw->rcvt1_data_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7720, 16, iter_reg);
qla24xx_read_window(reg, 0x7730, 16, iter_reg);
/* RISC registers. */
iter_reg = fw->risc_gp_reg;
iter_reg = qla24xx_read_window(reg, 0x0F00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F60, 16, iter_reg);
qla24xx_read_window(reg, 0x0F70, 16, iter_reg);
/* Local memory controller registers. */
iter_reg = fw->lmc_reg;
iter_reg = qla24xx_read_window(reg, 0x3000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3060, 16, iter_reg);
qla24xx_read_window(reg, 0x3070, 16, iter_reg);
/* Fibre Protocol Module registers. */
iter_reg = fw->fpm_hdw_reg;
iter_reg = qla24xx_read_window(reg, 0x4000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4060, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4070, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4080, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4090, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x40A0, 16, iter_reg);
qla24xx_read_window(reg, 0x40B0, 16, iter_reg);
/* Frame Buffer registers. */
iter_reg = fw->fb_hdw_reg;
iter_reg = qla24xx_read_window(reg, 0x6000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6100, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6130, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6150, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6170, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6190, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x61B0, 16, iter_reg);
qla24xx_read_window(reg, 0x6F00, 16, iter_reg);
rval = qla24xx_soft_reset(ha);
if (rval != QLA_SUCCESS)
goto qla25xx_fw_dump_failed_0;
rval = qla24xx_dump_memory(ha, fw->code_ram, sizeof(fw->code_ram),
fw->ext_mem, &nxt);
if (rval != QLA_SUCCESS)
goto qla25xx_fw_dump_failed_0;
nxt = qla2xxx_copy_queues(ha, nxt);
if (ha->eft)
memcpy(nxt, ha->eft, ntohl(ha->fw_dump->eft_size));
qla25xx_fw_dump_failed_0:
if (rval != QLA_SUCCESS) {
qla_printk(KERN_WARNING, ha,
"Failed to dump firmware (%x)!!!\n", rval);
ha->fw_dumped = 0;
} else {
qla_printk(KERN_INFO, ha,
"Firmware dump saved to temp buffer (%ld/%p).\n",
ha->host_no, ha->fw_dump);
ha->fw_dumped = 1;
}
qla25xx_fw_dump_failed:
if (!hardware_locked)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static void sit_add_v4_addrs(struct inet6_dev *idev)
{
struct inet6_ifaddr * ifp;
struct in6_addr addr;
struct net_device *dev;
int scope;
ASSERT_RTNL();
memset(&addr, 0, sizeof(struct in6_addr));
memcpy(&addr.s6_addr32[3], idev->dev->dev_addr, 4);
if (idev->dev->flags&IFF_POINTOPOINT) {
addr.s6_addr32[0] = __constant_htonl(0xfe800000);
scope = IFA_LINK;
} else {
scope = IPV6_ADDR_COMPATv4;
}
if (addr.s6_addr32[3]) {
ifp = ipv6_add_addr(idev, &addr, 128, scope, IFA_F_PERMANENT);
if (ifp) {
spin_lock_bh(&ifp->lock);
ifp->flags &= ~IFA_F_TENTATIVE;
spin_unlock_bh(&ifp->lock);
ipv6_ifa_notify(RTM_NEWADDR, ifp);
in6_ifa_put(ifp);
}
return;
}
for (dev = dev_base; dev != NULL; dev = dev->next) {
struct in_device * in_dev = __in_dev_get(dev);
if (in_dev && (dev->flags & IFF_UP)) {
struct in_ifaddr * ifa;
int flag = scope;
for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
int plen;
addr.s6_addr32[3] = ifa->ifa_local;
if (ifa->ifa_scope == RT_SCOPE_LINK)
continue;
if (ifa->ifa_scope >= RT_SCOPE_HOST) {
if (idev->dev->flags&IFF_POINTOPOINT)
continue;
flag |= IFA_HOST;
}
if (idev->dev->flags&IFF_POINTOPOINT)
plen = 10;
else
plen = 96;
ifp = ipv6_add_addr(idev, &addr, plen, flag,
IFA_F_PERMANENT);
if (ifp) {
spin_lock_bh(&ifp->lock);
ifp->flags &= ~IFA_F_TENTATIVE;
spin_unlock_bh(&ifp->lock);
ipv6_ifa_notify(RTM_NEWADDR, ifp);
in6_ifa_put(ifp);
}
}
}
}
}
int tcpdiag_bc_run(char *bc, int len, struct sock *sk)
{
while (len > 0) {
int yes = 1;
struct tcpdiag_bc_op *op = (struct tcpdiag_bc_op*)bc;
switch (op->code) {
case TCPDIAG_BC_NOP:
break;
case TCPDIAG_BC_JMP:
yes = 0;
break;
case TCPDIAG_BC_S_GE:
yes = (sk->num >= op[1].no);
break;
case TCPDIAG_BC_S_LE:
yes = (sk->num <= op[1].no);
break;
case TCPDIAG_BC_D_GE:
yes = (ntohs(sk->dport) >= op[1].no);
break;
case TCPDIAG_BC_D_LE:
yes = (ntohs(sk->dport) <= op[1].no);
break;
case TCPDIAG_BC_AUTO:
yes = !(sk->userlocks&SOCK_BINDPORT_LOCK);
break;
case TCPDIAG_BC_S_COND:
case TCPDIAG_BC_D_COND:
{
struct tcpdiag_hostcond *cond = (struct tcpdiag_hostcond*)(op+1);
u32 *addr;
if (cond->port != -1 &&
cond->port != (op->code == TCPDIAG_BC_S_COND ? sk->num : ntohs(sk->dport))) {
yes = 0;
break;
}
if (cond->prefix_len == 0)
break;
#ifdef CONFIG_IPV6
if (sk->family == AF_INET6) {
if (op->code == TCPDIAG_BC_S_COND)
addr = (u32*)&sk->net_pinfo.af_inet6.rcv_saddr;
else
addr = (u32*)&sk->net_pinfo.af_inet6.daddr;
} else
#endif
{
if (op->code == TCPDIAG_BC_S_COND)
addr = &sk->rcv_saddr;
else
addr = &sk->daddr;
}
if (bitstring_match(addr, cond->addr, cond->prefix_len))
break;
if (sk->family == AF_INET6 && cond->family == AF_INET) {
if (addr[0] == 0 && addr[1] == 0 &&
addr[2] == __constant_htonl(0xffff) &&
bitstring_match(addr+3, cond->addr, cond->prefix_len))
break;
}
yes = 0;
break;
}
}
if (yes) {
len -= op->yes;
bc += op->yes;
} else {
len -= op->no;
bc += op->no;
}
}
return (len == 0);
}
int udpv6_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
struct sockaddr_in6 *usin = (struct sockaddr_in6 *) uaddr;
struct ipv6_pinfo *np = &sk->net_pinfo.af_inet6;
struct in6_addr *daddr;
struct in6_addr saddr;
struct dst_entry *dst;
struct flowi fl;
struct ip6_flowlabel *flowlabel = NULL;
int addr_type;
int err;
if (usin->sin6_family == AF_INET) {
err = udp_connect(sk, uaddr, addr_len);
goto ipv4_connected;
}
if (addr_len < SIN6_LEN_RFC2133)
return -EINVAL;
if (usin->sin6_family != AF_INET6)
return -EAFNOSUPPORT;
fl.fl6_flowlabel = 0;
if (np->sndflow) {
fl.fl6_flowlabel = usin->sin6_flowinfo&IPV6_FLOWINFO_MASK;
if (fl.fl6_flowlabel&IPV6_FLOWLABEL_MASK) {
flowlabel = fl6_sock_lookup(sk, fl.fl6_flowlabel);
if (flowlabel == NULL)
return -EINVAL;
ipv6_addr_copy(&usin->sin6_addr, &flowlabel->dst);
}
}
addr_type = ipv6_addr_type(&usin->sin6_addr);
if (addr_type == IPV6_ADDR_ANY) {
/*
* connect to self
*/
usin->sin6_addr.s6_addr[15] = 0x01;
}
daddr = &usin->sin6_addr;
if (addr_type == IPV6_ADDR_MAPPED) {
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = daddr->s6_addr32[3];
sin.sin_port = usin->sin6_port;
err = udp_connect(sk, (struct sockaddr*) &sin, sizeof(sin));
ipv4_connected:
if (err < 0)
return err;
ipv6_addr_set(&np->daddr, 0, 0,
__constant_htonl(0x0000ffff),
sk->daddr);
if(ipv6_addr_any(&np->saddr)) {
ipv6_addr_set(&np->saddr, 0, 0,
__constant_htonl(0x0000ffff),
sk->saddr);
}
if(ipv6_addr_any(&np->rcv_saddr)) {
ipv6_addr_set(&np->rcv_saddr, 0, 0,
__constant_htonl(0x0000ffff),
sk->rcv_saddr);
}
return 0;
}
if (addr_type&IPV6_ADDR_LINKLOCAL) {
if (addr_len >= sizeof(struct sockaddr_in6) &&
usin->sin6_scope_id) {
if (sk->bound_dev_if && sk->bound_dev_if != usin->sin6_scope_id) {
fl6_sock_release(flowlabel);
return -EINVAL;
}
sk->bound_dev_if = usin->sin6_scope_id;
}
/* Connect to link-local address requires an interface */
if (sk->bound_dev_if == 0)
return -EINVAL;
}
ipv6_addr_copy(&np->daddr, daddr);
np->flow_label = fl.fl6_flowlabel;
sk->dport = usin->sin6_port;
/*
* Check for a route to destination an obtain the
* destination cache for it.
*/
fl.proto = IPPROTO_UDP;
fl.fl6_dst = &np->daddr;
fl.fl6_src = &saddr;
fl.oif = sk->bound_dev_if;
fl.uli_u.ports.dport = sk->dport;
fl.uli_u.ports.sport = sk->sport;
if (flowlabel) {
if (flowlabel->opt && flowlabel->opt->srcrt) {
struct rt0_hdr *rt0 = (struct rt0_hdr *) flowlabel->opt->srcrt;
fl.fl6_dst = rt0->addr;
}
} else if (np->opt && np->opt->srcrt) {
struct rt0_hdr *rt0 = (struct rt0_hdr *) np->opt->srcrt;
fl.fl6_dst = rt0->addr;
}
dst = ip6_route_output(sk, &fl);
if ((err = dst->error) != 0) {
dst_release(dst);
fl6_sock_release(flowlabel);
return err;
}
ip6_dst_store(sk, dst, fl.fl6_dst);
/* get the source adddress used in the apropriate device */
err = ipv6_get_saddr(dst, daddr, &saddr);
if (err == 0) {
if(ipv6_addr_any(&np->saddr))
ipv6_addr_copy(&np->saddr, &saddr);
if(ipv6_addr_any(&np->rcv_saddr)) {
ipv6_addr_copy(&np->rcv_saddr, &saddr);
sk->rcv_saddr = LOOPBACK4_IPV6;
}
sk->state = TCP_ESTABLISHED;
}
fl6_sock_release(flowlabel);
return err;
}
int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, int len,
int noblock, int flags, int *addr_len)
{
struct sk_buff *skb;
int copied, err;
if (addr_len)
*addr_len=sizeof(struct sockaddr_in6);
if (flags & MSG_ERRQUEUE)
return ipv6_recv_error(sk, msg, len);
skb = skb_recv_datagram(sk, flags, noblock, &err);
if (!skb)
goto out;
copied = skb->len - sizeof(struct udphdr);
if (copied > len) {
copied = len;
msg->msg_flags |= MSG_TRUNC;
}
if (skb->ip_summed==CHECKSUM_UNNECESSARY) {
err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr), msg->msg_iov,
copied);
} else if (msg->msg_flags&MSG_TRUNC) {
if ((unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum)))
goto csum_copy_err;
err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr), msg->msg_iov,
copied);
} else {
err = skb_copy_and_csum_datagram_iovec(skb, sizeof(struct udphdr), msg->msg_iov);
if (err == -EINVAL)
goto csum_copy_err;
}
if (err)
goto out_free;
sock_recv_timestamp(msg, sk, skb);
/* Copy the address. */
if (msg->msg_name) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *) msg->msg_name;
sin6->sin6_family = AF_INET6;
sin6->sin6_port = skb->h.uh->source;
sin6->sin6_flowinfo = 0;
sin6->sin6_scope_id = 0;
if (skb->protocol == __constant_htons(ETH_P_IP)) {
ipv6_addr_set(&sin6->sin6_addr, 0, 0,
__constant_htonl(0xffff), skb->nh.iph->saddr);
if (sk->protinfo.af_inet.cmsg_flags)
ip_cmsg_recv(msg, skb);
} else {
memcpy(&sin6->sin6_addr, &skb->nh.ipv6h->saddr,
sizeof(struct in6_addr));
if (sk->net_pinfo.af_inet6.rxopt.all)
datagram_recv_ctl(sk, msg, skb);
if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) {
struct inet6_skb_parm *opt = (struct inet6_skb_parm *) skb->cb;
sin6->sin6_scope_id = opt->iif;
}
}
}
err = copied;
out_free:
skb_free_datagram(sk, skb);
out:
return err;
csum_copy_err:
/* Clear queue. */
if (flags&MSG_PEEK) {
int clear = 0;
spin_lock_irq(&sk->receive_queue.lock);
if (skb == skb_peek(&sk->receive_queue)) {
__skb_unlink(skb, &sk->receive_queue);
clear = 1;
}
spin_unlock_irq(&sk->receive_queue.lock);
if (clear)
kfree_skb(skb);
}
/* Error for blocking case is chosen to masquerade
as some normal condition.
*/
err = (flags&MSG_DONTWAIT) ? -EAGAIN : -EHOSTUNREACH;
UDP6_INC_STATS_USER(UdpInErrors);
goto out_free;
}
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <ssa_smdb.h>
#include <asm/byteorder.h>
static const struct db_table_def def_tbl[] = {
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DATA, 0, { 0, SSA_TABLE_ID_SUBNET_OPTS, 0 },
"SUBNET OPTS", __constant_htonl(sizeof(struct ep_subnet_opts_tbl_rec)), 0 },
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DEF, 0, { 0, SSA_TABLE_ID_SUBNET_OPTS_FIELD_DEF, 0 },
"SUBNET OPTS fields", __constant_htonl(sizeof(struct db_field_def)), __constant_htonl(SSA_TABLE_ID_SUBNET_OPTS) },
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DATA, 0, { 0, SSA_TABLE_ID_GUID_TO_LID, 0 },
"GUID to LID", __constant_htonl(sizeof(struct ep_guid_to_lid_tbl_rec)), 0 },
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DEF, 0, { 0, SSA_TABLE_ID_GUID_TO_LID_FIELD_DEF, 0 },
"GUID to LID fields", __constant_htonl(sizeof(struct db_field_def)), __constant_htonl(SSA_TABLE_ID_GUID_TO_LID) },
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DATA, 0, { 0, SSA_TABLE_ID_NODE, 0 },
"NODE", __constant_htonl(sizeof(struct ep_node_tbl_rec)), 0 },
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DEF, 0, { 0, SSA_TABLE_ID_NODE_FIELD_DEF, 0 },
"NODE fields", __constant_htonl(sizeof(struct db_field_def)), __constant_htonl(SSA_TABLE_ID_NODE) },
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DATA, 0, { 0, SSA_TABLE_ID_LINK, 0 },
"LINK", __constant_htonl(sizeof(struct ep_link_tbl_rec)), 0 },
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DEF, 0, { 0, SSA_TABLE_ID_LINK_FIELD_DEF, 0 },
"LINK fields", __constant_htonl(sizeof(struct db_field_def)), __constant_htonl(SSA_TABLE_ID_LINK) },
{ DBT_DEF_VERSION, sizeof(struct db_table_def), DBT_TYPE_DATA, 0, { 0, SSA_TABLE_ID_PORT, 0 },
void * packet_init(struct sk_buff *skb, const struct net_device *out)
{
struct sk_buff *newskb = NULL;
struct ethhdr *ethh = NULL;
struct tcphdr *tcph = NULL;
struct iphdr *iph = NULL;
unsigned char *pdata = NULL;
struct tcphdr *old_tcph = NULL;
struct iphdr *old_iph = NULL;
struct ethhdr *old_ethh = NULL;
struct net_device *dev = NULL;
unsigned short old_data_len = 0;
unsigned char dest[6] = {0x08, 0x00, 0x27, 0xc4, 0xe6, 0x3b};
unsigned char src[6] = {0x52, 0x54, 0x00, 0x12, 0x35, 0x02};
char pkt302[] =
"HTTP/1.1 302 Found\r\n"
"Location: http://www.126.com/\r\n"
"Content-Length: 0\r\n"
"Connection: close\r\n\r\n";
//char pkt301[] =
//"HTTP/1.1 301 Moved Permanently\r\n"
//"Location: http://www.jd.com\r\n"
//"Content-Type: text/html; charset=iso-8859-1\r\n"
//"Content-length: 0\r\n"
//"Cache-control: no-cache\r\n"
//"\r\n";
// malloc skb space
// l4
// l3
// l2
// return newskb
dev = dev_get_by_name(&init_net, "eth0");
{
// old skb info
old_tcph = (struct tcphdr *)skb_transport_header(skb);
old_iph = (struct iphdr *)skb_network_header(skb);
old_ethh = (struct ethhdr *)skb_mac_header(skb);
}
newskb = alloc_skb(strlen(pkt302) + sizeof(struct tcphdr) + sizeof(struct iphdr) + ETH_HLEN + 2, GFP_ATOMIC);
if (newskb == NULL)
{
return NULL;
}
skb_reserve(skb, 2);
// skb padding
newskb->dev = out;
//newskb->dev = dev;
newskb->pkt_type = PACKET_HOST;
newskb->protocol = __constant_htons(ETH_P_IP);
newskb->ip_summed = CHECKSUM_NONE;
newskb->priority = 0;
skb_put(newskb, sizeof(struct ethhdr));
skb_reset_mac_header(newskb);
skb_put(newskb, sizeof(struct iphdr));
skb_set_network_header(newskb, sizeof(struct ethhdr));
skb_put(newskb, sizeof(struct tcphdr));
skb_set_transport_header(newskb, sizeof(struct iphdr) + sizeof(struct ethhdr));
//skb_put(newskb, sizeof(struct ethhdr) + sizeof(struct iphdr) + sizeof(struct tcphdr));
pdata = skb_put(newskb, strlen(pkt302));
if (pdata != NULL)
{
memcpy(pdata, pkt302, strlen(pkt302));
}
{
//fill l4
tcph = (struct tcphdr *)skb_transport_header(newskb);
memset(tcph, 0, sizeof(struct tcphdr));
tcph->source = old_tcph->dest;
tcph->dest = old_tcph->source;
//tcph->seq = old_tcph->seq;
//tcph->ack_seq = old_tcph->ack_seq;
old_data_len = __constant_ntohs(old_iph->tot_len) - old_iph->ihl * 4 - old_tcph->doff * 4;
printk("---------old seq : %08x\r\n", old_tcph->seq);
printk("---------old ack : %08x\r\n", old_tcph->ack_seq);
printk("---------old data_len : %d\r\n", old_data_len);
tcph->seq = old_tcph->ack_seq;
//tcph->ack_seq = __constant_htonl(__constant_ntohl(old_tcph->seq) + strlen(pkt302));
tcph->ack_seq = __constant_htonl(__constant_ntohl(old_tcph->seq) + old_data_len);
tcph->doff = 5;
tcph->psh = 1;
tcph->ack = 1;
tcph->window = old_tcph->window;
newskb->csum = 0;
tcph->check = 0;
tcph->urg_ptr = 0;
}
{
//fill l3
iph = (struct iphdr *)skb_network_header(newskb);
memset(iph, 0, sizeof(struct iphdr));
iph->version = 4;
iph->ihl = sizeof(struct iphdr)>>2;
iph->frag_off = __constant_htons(0x4000);
iph->protocol = IPPROTO_TCP;
iph->tos = 0;
iph->daddr = old_iph->saddr;
iph->saddr = old_iph->daddr;
iph->ttl = 0x40;
iph->tot_len = __constant_htons(strlen(pkt302) + sizeof(struct tcphdr) + sizeof(struct iphdr));
iph->check = 0;
iph->check = ip_fast_csum(iph, iph->ihl);
}
newskb->csum = skb_checksum (newskb, ETH_HLEN + iph->ihl*4, strlen(pkt302) + sizeof(struct tcphdr), 0);
tcph->check = csum_tcpudp_magic (iph->saddr, iph->daddr, strlen(pkt302) + sizeof(struct tcphdr), IPPROTO_TCP, newskb->csum);
{
ethh = (struct ethhdr *)skb_mac_header(newskb);
//fill l2
if (skb->mac_len > 0)
{
memcpy(ethh->h_dest, old_ethh->h_source, ETH_ALEN);
memcpy(ethh->h_source, old_ethh->h_dest, ETH_ALEN);
}
else
{
//memcpy(ethh->h_dest, old_ethh->h_source, ETH_ALEN);
//memcpy(ethh->h_source, old_ethh->h_dest, ETH_ALEN);
//memset(ethh->h_dest, 0, ETH_ALEN);
//memset(ethh->h_source, 0, ETH_ALEN);
memcpy(ethh->h_dest, dest, ETH_ALEN);
memcpy(ethh->h_source, src, ETH_ALEN);
}
ethh->h_proto = __constant_htons (ETH_P_IP);
}
//skb_pull(newskb, ETH_HLEN);
return newskb;
}
/*
* Update out-in sack seqs, and also correct th->check
*/
static inline void
syn_proxy_filter_opt_outin(struct tcphdr *th, struct ip_vs_seq *sp_seq)
{
unsigned char *ptr;
int length = (th->doff * 4) - sizeof(struct tcphdr);
__be32 *tmp;
__u32 old_ack_seq;
if (!length)
return;
ptr = (unsigned char *)(th + 1);
/* Fast path for timestamp-only option */
if (length == TCPOLEN_TSTAMP_ALIGNED
&& *(__be32 *) ptr == __constant_htonl((TCPOPT_NOP << 24)
| (TCPOPT_NOP << 16)
| (TCPOPT_TIMESTAMP << 8) |
TCPOLEN_TIMESTAMP))
return;
while (length > 0) {
int opcode = *ptr++;
int opsize, i;
switch (opcode) {
case TCPOPT_EOL:
return;
case TCPOPT_NOP: /* Ref: RFC 793 section 3.1 */
length--;
continue;
default:
opsize = *ptr++;
if (opsize < 2) /* "silly options" */
return;
if (opsize > length)
break; /* don't parse partial options */
if (opcode == TCPOPT_SACK
&& opsize >= (TCPOLEN_SACK_BASE
+ TCPOLEN_SACK_PERBLOCK)
&& !((opsize - TCPOLEN_SACK_BASE) %
TCPOLEN_SACK_PERBLOCK)) {
for (i = 0; i < (opsize - TCPOLEN_SACK_BASE);
i += TCPOLEN_SACK_PERBLOCK) {
tmp = (__be32 *) (ptr + i);
old_ack_seq = ntohl(*tmp);
*tmp = htonl((__u32)
(old_ack_seq -
sp_seq->delta));
syn_proxy_seq_csum_update(th,
htonl
(old_ack_seq),
*tmp);
IP_VS_DBG(6,
"syn_proxy_filter_opt_outin: sack_left_seq %u => %u, delta = %u \n",
old_ack_seq, ntohl(*tmp),
sp_seq->delta);
tmp++;
old_ack_seq = ntohl(*tmp);
*tmp = htonl((__u32)
(old_ack_seq -
sp_seq->delta));
syn_proxy_seq_csum_update(th,
htonl
(old_ack_seq),
*tmp);
IP_VS_DBG(6,
"syn_proxy_filter_opt_outin: sack_right_seq %u => %u, delta = %u \n",
old_ack_seq, ntohl(*tmp),
sp_seq->delta);
}
return;
}
ptr += opsize - 2;
length -= opsize;
}
}
}
static int cisco_rx(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
hdlc_device *hdlc = dev_to_hdlc(dev);
struct cisco_state *st = state(hdlc);
struct hdlc_header *data = (struct hdlc_header*)skb->data;
struct cisco_packet *cisco_data;
struct in_device *in_dev;
__be32 addr, mask;
if (skb->len < sizeof(struct hdlc_header))
goto rx_error;
if (data->address != CISCO_MULTICAST &&
data->address != CISCO_UNICAST)
goto rx_error;
switch(ntohs(data->protocol)) {
case CISCO_SYS_INFO:
/* Packet is not needed, drop it. */
dev_kfree_skb_any(skb);
return NET_RX_SUCCESS;
case CISCO_KEEPALIVE:
if ((skb->len != sizeof(struct hdlc_header) +
CISCO_PACKET_LEN) &&
(skb->len != sizeof(struct hdlc_header) +
CISCO_BIG_PACKET_LEN)) {
printk(KERN_INFO "%s: Invalid length of Cisco control"
" packet (%d bytes)\n", dev->name, skb->len);
goto rx_error;
}
cisco_data = (struct cisco_packet*)(skb->data + sizeof
(struct hdlc_header));
switch(ntohl (cisco_data->type)) {
case CISCO_ADDR_REQ: /* Stolen from syncppp.c :-) */
in_dev = dev->ip_ptr;
addr = 0;
mask = __constant_htonl(~0); /* is the mask correct? */
if (in_dev != NULL) {
struct in_ifaddr **ifap = &in_dev->ifa_list;
while (*ifap != NULL) {
if (strcmp(dev->name,
(*ifap)->ifa_label) == 0) {
addr = (*ifap)->ifa_local;
mask = (*ifap)->ifa_mask;
break;
}
ifap = &(*ifap)->ifa_next;
}
cisco_keepalive_send(dev, CISCO_ADDR_REPLY,
addr, mask);
}
dev_kfree_skb_any(skb);
return NET_RX_SUCCESS;
case CISCO_ADDR_REPLY:
printk(KERN_INFO "%s: Unexpected Cisco IP address "
"reply\n", dev->name);
goto rx_error;
case CISCO_KEEPALIVE_REQ:
spin_lock(&st->lock);
st->rxseq = ntohl(cisco_data->par1);
if (st->request_sent &&
ntohl(cisco_data->par2) == st->txseq) {
st->last_poll = jiffies;
if (!st->up) {
u32 sec, min, hrs, days;
sec = ntohl(cisco_data->time) / 1000;
min = sec / 60; sec -= min * 60;
hrs = min / 60; min -= hrs * 60;
days = hrs / 24; hrs -= days * 24;
printk(KERN_INFO "%s: Link up (peer "
"uptime %ud%uh%um%us)\n",
dev->name, days, hrs, min, sec);
netif_dormant_off(dev);
st->up = 1;
}
}
spin_unlock(&st->lock);
dev_kfree_skb_any(skb);
return NET_RX_SUCCESS;
} /* switch(keepalive type) */
} /* switch(protocol) */
printk(KERN_INFO "%s: Unsupported protocol %x\n", dev->name,
ntohs(data->protocol));
dev_kfree_skb_any(skb);
return NET_RX_DROP;
rx_error:
dev_to_hdlc(dev)->stats.rx_errors++; /* Mark error */
dev_kfree_skb_any(skb);
return NET_RX_DROP;
}