linux-2.6-520-vnet+.patch

   1 diff -Nurb linux-2.6.22-510/include/linux/netfilter/xt_MARK.h linux-2.6.22-520/include/linux/netfilter/xt_MARK.h
   2 --- linux-2.6.22-510/include/linux/netfilter/xt_MARK.h  2007-07-08 19:32:17.000000000 -0400
   3 +++ linux-2.6.22-520/include/linux/netfilter/xt_MARK.h  2008-02-02 04:52:17.000000000 -0500
   4 @@ -11,6 +11,7 @@
   5         XT_MARK_SET=0,
   6         XT_MARK_AND,
   7         XT_MARK_OR,
   8 +       XT_MARK_COPYXID,
   9  };
  10
  11  struct xt_mark_target_info_v1 {
  12 diff -Nurb linux-2.6.22-510/include/linux/netfilter/xt_SETXID.h linux-2.6.22-520/include/linux/netfilter/xt_SETXID.h
  13 --- linux-2.6.22-510/include/linux/netfilter/xt_SETXID.h        1969-12-31 19:00:00.000000000 -0500
  14 +++ linux-2.6.22-520/include/linux/netfilter/xt_SETXID.h        2008-02-02 04:52:17.000000000 -0500
  15 @@ -0,0 +1,14 @@
  16 +#ifndef _XT_SETXID_H_target
  17 +#define _XT_SETXID_H_target
  18 +
  19 +/* Version 1 */
  20 +enum {
  21 +       XT_SET_PACKET_XID=0
  22 +};
  23 +
  24 +struct xt_setxid_target_info_v1 {
  25 +       unsigned long mark;
  26 +       u_int8_t mode;
  27 +};
  28 +
  29 +#endif /*_XT_SETXID_H_target*/
  30 diff -Nurb linux-2.6.22-510/include/linux/netfilter_ipv4/ipt_MARK.h linux-2.6.22-520/include/linux/netfilter_ipv4/ipt_MARK.h
  31 --- linux-2.6.22-510/include/linux/netfilter_ipv4/ipt_MARK.h    2007-07-08 19:32:17.000000000 -0400
  32 +++ linux-2.6.22-520/include/linux/netfilter_ipv4/ipt_MARK.h    2008-02-02 04:52:17.000000000 -0500
  33 @@ -12,6 +12,7 @@
  34  #define IPT_MARK_SET   XT_MARK_SET
  35  #define IPT_MARK_AND   XT_MARK_AND
  36  #define        IPT_MARK_OR     XT_MARK_OR
  37 +#define IPT_MARK_COPYXID       XT_MARK_COPYXID
  38
  39  #define ipt_mark_target_info_v1 xt_mark_target_info_v1
  40
  41 diff -Nurb linux-2.6.22-510/include/linux/netfilter_ipv4/ipt_SETXID.h linux-2.6.22-520/include/linux/netfilter_ipv4/ipt_SETXID.h
  42 --- linux-2.6.22-510/include/linux/netfilter_ipv4/ipt_SETXID.h  1969-12-31 19:00:00.000000000 -0500
  43 +++ linux-2.6.22-520/include/linux/netfilter_ipv4/ipt_SETXID.h  2008-02-02 04:52:17.000000000 -0500
  44 @@ -0,0 +1,13 @@
  45 +#ifndef _IPT_SETXID_H_target
  46 +#define _IPT_SETXID_H_target
  47 +
  48 +/* Backwards compatibility for old userspace */
  49 +
  50 +#include <linux/netfilter/xt_SETXID.h>
  51 +
  52 +/* Version 1 */
  53 +#define IPT_SET_PACKET_XID     XT_SET_PACKET_XID
  54 +
  55 +#define ipt_setxid_target_info_v1 xt_setxid_target_info_v1
  56 +
  57 +#endif /*_IPT_SETXID_H_target*/
  58 diff -Nurb linux-2.6.22-510/include/linux/skbuff.h linux-2.6.22-520/include/linux/skbuff.h
  59 --- linux-2.6.22-510/include/linux/skbuff.h     2007-07-08 19:32:17.000000000 -0400
  60 +++ linux-2.6.22-520/include/linux/skbuff.h     2008-02-02 04:52:17.000000000 -0500
  61 @@ -302,6 +302,7 @@
  62  #endif
  63
  64         __u32                   mark;
  65 +#define skb_tag                        mark
  66
  67         sk_buff_data_t          transport_header;
  68         sk_buff_data_t          network_header;
  69 diff -Nurb linux-2.6.22-510/include/linux/socket.h linux-2.6.22-520/include/linux/socket.h
  70 --- linux-2.6.22-510/include/linux/socket.h     2007-07-08 19:32:17.000000000 -0400
  71 +++ linux-2.6.22-520/include/linux/socket.h     2008-02-02 04:52:17.000000000 -0500
  72 @@ -288,6 +288,8 @@
  73  #define SOL_TIPC       271
  74  #define SOL_RXRPC      272
  75
  76 +#define SO_SETXID      SO_PEERCRED
  77 +
  78  /* IPX options */
  79  #define IPX_TYPE       1
  80
  81 diff -Nurb linux-2.6.22-510/include/linux/vserver/network.h linux-2.6.22-520/include/linux/vserver/network.h
  82 --- linux-2.6.22-510/include/linux/vserver/network.h    2008-02-02 04:52:13.000000000 -0500
  83 +++ linux-2.6.22-520/include/linux/vserver/network.h    2008-02-02 04:52:17.000000000 -0500
  84 @@ -44,6 +44,8 @@
  85  /* network caps */
  86
  87  #define NXC_RAW_ICMP           0x00000100
  88 +#define NXC_RAW_SOCKET         0x00000200
  89 +#define NXC_RAW_SEND           0x00000400
  90
  91
  92  /* address types */
  93 diff -Nurb linux-2.6.22-510/include/net/netfilter/nf_conntrack.h linux-2.6.22-520/include/net/netfilter/nf_conntrack.h
  94 --- linux-2.6.22-510/include/net/netfilter/nf_conntrack.h       2007-07-08 19:32:17.000000000 -0400
  95 +++ linux-2.6.22-520/include/net/netfilter/nf_conntrack.h       2008-02-02 04:52:17.000000000 -0500
  96 @@ -131,6 +131,9 @@
  97         /* Storage reserved for other modules: */
  98         union nf_conntrack_proto proto;
  99
 100 +       /* PLANETLAB. VNET-specific */
 101 +       xid_t xid[IP_CT_DIR_MAX];
 102 +
 103         /* features dynamically at the end: helper, nat (both optional) */
 104         char data[0];
 105  };
 106 diff -Nurb linux-2.6.22-510/include/net/raw.h linux-2.6.22-520/include/net/raw.h
 107 --- linux-2.6.22-510/include/net/raw.h  2007-07-08 19:32:17.000000000 -0400
 108 +++ linux-2.6.22-520/include/net/raw.h  2008-02-02 04:52:17.000000000 -0500
 109 @@ -36,7 +36,7 @@
 110
 111  extern struct sock *__raw_v4_lookup(struct sock *sk, unsigned short num,
 112                                     __be32 raddr, __be32 laddr,
 113 -                                   int dif);
 114 +                                   int dif, int tag);
 115
 116  extern int raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash);
 117
 118 diff -Nurb linux-2.6.22-510/net/core/skbuff.c linux-2.6.22-520/net/core/skbuff.c
 119 --- linux-2.6.22-510/net/core/skbuff.c  2007-07-08 19:32:17.000000000 -0400
 120 +++ linux-2.6.22-520/net/core/skbuff.c  2008-02-02 04:52:17.000000000 -0500
 121 @@ -56,6 +56,7 @@
 122  #include <linux/rtnetlink.h>
 123  #include <linux/init.h>
 124  #include <linux/scatterlist.h>
 125 +#include <linux/vs_network.h>
 126
 127  #include <net/protocol.h>
 128  #include <net/dst.h>
 129 @@ -174,6 +175,7 @@
 130         skb->data = data;
 131         skb_reset_tail_pointer(skb);
 132         skb->end = skb->tail + size;
 133 +       skb->skb_tag = nx_current_nid();
 134         /* make sure we initialize shinfo sequentially */
 135         shinfo = skb_shinfo(skb);
 136         atomic_set(&shinfo->dataref, 1);
 137 @@ -443,6 +445,8 @@
 138         C(tail);
 139         C(end);
 140
 141 +       /* Sapan: Cloned skbs aren't owned by anyone. Let the cloner decide who it belongs to. */
 142 +
 143         atomic_inc(&(skb_shinfo(skb)->dataref));
 144         skb->cloned = 1;
 145
 146 @@ -492,6 +496,7 @@
 147         new->tc_index   = old->tc_index;
 148  #endif
 149         skb_copy_secmark(new, old);
 150 +       new->skb_tag = old->skb_tag;
 151         atomic_set(&new->users, 1);
 152         skb_shinfo(new)->gso_size = skb_shinfo(old)->gso_size;
 153         skb_shinfo(new)->gso_segs = skb_shinfo(old)->gso_segs;
 154 diff -Nurb linux-2.6.22-510/net/core/sock.c linux-2.6.22-520/net/core/sock.c
 155 --- linux-2.6.22-510/net/core/sock.c    2008-02-02 04:52:13.000000000 -0500
 156 +++ linux-2.6.22-520/net/core/sock.c    2008-02-02 04:52:17.000000000 -0500
 157 @@ -444,6 +444,19 @@
 158                 }
 159                 goto set_sndbuf;
 160
 161 +       case SO_SETXID:
 162 +               if (current_vx_info()) {
 163 +                       ret = -EPERM;
 164 +                       break;
 165 +               }
 166 +               if (val < 0 || val > MAX_S_CONTEXT) {
 167 +                       ret = -EINVAL;
 168 +                       break;
 169 +               }
 170 +               sk->sk_xid = val;
 171 +               sk->sk_nid = val;
 172 +               break;
 173 +
 174         case SO_RCVBUF:
 175                 /* Don't error on this BSD doesn't and if you think
 176                    about it this is right. Otherwise apps have to
 177 @@ -573,7 +586,7 @@
 178                 char devname[IFNAMSIZ];
 179
 180                 /* Sorry... */
 181 -               if (!capable(CAP_NET_RAW)) {
 182 +               if (!nx_capable(CAP_NET_RAW, NXC_RAW_SOCKET)) {
 183                         ret = -EPERM;
 184                         break;
 185                 }
 186 diff -Nurb linux-2.6.22-510/net/ipv4/af_inet.c linux-2.6.22-520/net/ipv4/af_inet.c
 187 --- linux-2.6.22-510/net/ipv4/af_inet.c 2008-02-02 04:52:13.000000000 -0500
 188 +++ linux-2.6.22-520/net/ipv4/af_inet.c 2008-02-02 04:52:17.000000000 -0500
 189 @@ -178,6 +178,8 @@
 190                         return -EAGAIN;
 191                 }
 192                 inet->sport = htons(inet->num);
 193 +               sk->sk_xid = vx_current_xid();
 194 +               sk->sk_nid = nx_current_nid();
 195         }
 196         release_sock(sk);
 197         return 0;
 198 diff -Nurb linux-2.6.22-510/net/ipv4/icmp.c linux-2.6.22-520/net/ipv4/icmp.c
 199 --- linux-2.6.22-510/net/ipv4/icmp.c    2008-02-02 04:52:16.000000000 -0500
 200 +++ linux-2.6.22-520/net/ipv4/icmp.c    2008-02-02 04:52:17.000000000 -0500
 201 @@ -709,7 +709,7 @@
 202         if ((raw_sk = sk_head(&raw_v4_htable[hash])) != NULL) {
 203                 while ((raw_sk = __raw_v4_lookup(raw_sk, protocol, iph->daddr,
 204                                                  iph->saddr,
 205 -                                                skb->dev->ifindex)) != NULL) {
 206 +                                                skb->dev->ifindex, skb->skb_tag)) != NULL) {
 207                         raw_err(raw_sk, skb, info);
 208                         raw_sk = sk_next(raw_sk);
 209                         iph = (struct iphdr *)skb->data;
 210 diff -Nurb linux-2.6.22-510/net/ipv4/ip_options.c linux-2.6.22-520/net/ipv4/ip_options.c
 211 --- linux-2.6.22-510/net/ipv4/ip_options.c      2007-07-08 19:32:17.000000000 -0400
 212 +++ linux-2.6.22-520/net/ipv4/ip_options.c      2008-02-02 04:52:17.000000000 -0500
 213 @@ -409,7 +409,7 @@
 214                                         optptr[2] += 8;
 215                                         break;
 216                                       default:
 217 -                                       if (!skb && !capable(CAP_NET_RAW)) {
 218 +                                       if (!skb && !nx_capable(CAP_NET_RAW, NXC_RAW_SOCKET)) {
 219                                                 pp_ptr = optptr + 3;
 220                                                 goto error;
 221                                         }
 222 @@ -445,7 +445,7 @@
 223                                 opt->router_alert = optptr - iph;
 224                         break;
 225                       case IPOPT_CIPSO:
 226 -                       if ((!skb && !capable(CAP_NET_RAW)) || opt->cipso) {
 227 +                       if ((!skb && !nx_capable(CAP_NET_RAW, NXC_RAW_SOCKET)) || opt->cipso) {
 228                                 pp_ptr = optptr;
 229                                 goto error;
 230                         }
 231 @@ -458,7 +458,7 @@
 232                       case IPOPT_SEC:
 233                       case IPOPT_SID:
 234                       default:
 235 -                       if (!skb && !capable(CAP_NET_RAW)) {
 236 +                       if (!skb && !nx_capable(CAP_NET_RAW, NXC_RAW_SOCKET)) {
 237                                 pp_ptr = optptr;
 238                                 goto error;
 239                         }
 240 diff -Nurb linux-2.6.22-510/net/ipv4/netfilter/ipt_LOG.c linux-2.6.22-520/net/ipv4/netfilter/ipt_LOG.c
 241 --- linux-2.6.22-510/net/ipv4/netfilter/ipt_LOG.c       2008-02-02 04:52:09.000000000 -0500
 242 +++ linux-2.6.22-520/net/ipv4/netfilter/ipt_LOG.c       2008-02-02 04:52:17.000000000 -0500
 243 @@ -49,6 +49,8 @@
 244         else
 245                 logflags = NF_LOG_MASK;
 246
 247 +       printk("TAG=%d ", skb->skb_tag);
 248 +
 249         ih = skb_header_pointer(skb, iphoff, sizeof(_iph), &_iph);
 250         if (ih == NULL) {
 251                 printk("TRUNCATED");
 252 diff -Nurb linux-2.6.22-510/net/ipv4/raw.c linux-2.6.22-520/net/ipv4/raw.c
 253 --- linux-2.6.22-510/net/ipv4/raw.c     2008-02-02 04:52:13.000000000 -0500
 254 +++ linux-2.6.22-520/net/ipv4/raw.c     2008-02-02 04:52:17.000000000 -0500
 255 @@ -103,7 +103,7 @@
 256
 257  struct sock *__raw_v4_lookup(struct sock *sk, unsigned short num,
 258                              __be32 raddr, __be32 laddr,
 259 -                            int dif)
 260 +                            int dif, int tag)
 261  {
 262         struct hlist_node *node;
 263
 264 @@ -112,6 +112,7 @@
 265
 266                 if (inet->num == num                                    &&
 267                     !(inet->daddr && inet->daddr != raddr)              &&
 268 +                   (!sk->sk_nx_info || tag == 1 || sk->sk_nid == tag)  &&
 269                     v4_sock_addr_match(sk->sk_nx_info, inet, laddr)     &&
 270                     !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
 271                         goto found; /* gotcha */
 272 @@ -161,7 +162,7 @@
 273                 goto out;
 274         sk = __raw_v4_lookup(__sk_head(head), iph->protocol,
 275                              iph->saddr, iph->daddr,
 276 -                            skb->dev->ifindex);
 277 +                            skb->dev->ifindex, skb->skb_tag);
 278
 279         while (sk) {
 280                 delivered = 1;
 281 @@ -174,7 +175,7 @@
 282                 }
 283                 sk = __raw_v4_lookup(sk_next(sk), iph->protocol,
 284                                      iph->saddr, iph->daddr,
 285 -                                    skb->dev->ifindex);
 286 +                                    skb->dev->ifindex, skb->skb_tag);
 287         }
 288  out:
 289         read_unlock(&raw_v4_lock);
 290 @@ -315,7 +316,7 @@
 291         }
 292
 293         err = -EPERM;
 294 -       if (!nx_check(0, VS_ADMIN) && !capable(CAP_NET_RAW) &&
 295 +       if (!nx_check(0, VS_ADMIN) && !nx_capable(CAP_NET_RAW, NXC_RAW_SOCKET) &&
 296                 sk->sk_nx_info &&
 297                 !v4_addr_in_nx_info(sk->sk_nx_info, iph->saddr, NXA_MASK_BIND))
 298                 goto error_free;
 299 diff -Nurb linux-2.6.22-510/net/netfilter/Kconfig linux-2.6.22-520/net/netfilter/Kconfig
 300 --- linux-2.6.22-510/net/netfilter/Kconfig      2007-07-08 19:32:17.000000000 -0400
 301 +++ linux-2.6.22-520/net/netfilter/Kconfig      2008-02-02 04:52:17.000000000 -0500
 302 @@ -389,6 +389,13 @@
 303
 304           To compile it as a module, choose M here.  If unsure, say N.
 305
 306 +config NETFILTER_XT_TARGET_SETXID
 307 +       tristate '"SETXID" target support'
 308 +       depends on NETFILTER_XTABLES
 309 +       help
 310 +         This option adds a `SETXID' target, which allows you to alter the
 311 +         xid of a socket.
 312 +
 313  config NETFILTER_XT_MATCH_COMMENT
 314         tristate  '"comment" match support'
 315         depends on NETFILTER_XTABLES
 316 diff -Nurb linux-2.6.22-510/net/netfilter/Makefile linux-2.6.22-520/net/netfilter/Makefile
 317 --- linux-2.6.22-510/net/netfilter/Makefile     2007-07-08 19:32:17.000000000 -0400
 318 +++ linux-2.6.22-520/net/netfilter/Makefile     2008-02-02 04:52:17.000000000 -0500
 319 @@ -37,6 +37,7 @@
 320  obj-$(CONFIG_NETFILTER_XTABLES) += x_tables.o xt_tcpudp.o
 321
 322  # targets
 323 +obj-$(CONFIG_NETFILTER_XT_TARGET_SETXID) += xt_SETXID.o
 324  obj-$(CONFIG_NETFILTER_XT_TARGET_CLASSIFY) += xt_CLASSIFY.o
 325  obj-$(CONFIG_NETFILTER_XT_TARGET_CONNMARK) += xt_CONNMARK.o
 326  obj-$(CONFIG_NETFILTER_XT_TARGET_DSCP) += xt_DSCP.o
 327 diff -Nurb linux-2.6.22-510/net/netfilter/nf_conntrack_core.c linux-2.6.22-520/net/netfilter/nf_conntrack_core.c
 328 --- linux-2.6.22-510/net/netfilter/nf_conntrack_core.c  2007-07-08 19:32:17.000000000 -0400
 329 +++ linux-2.6.22-520/net/netfilter/nf_conntrack_core.c  2008-02-02 04:52:17.000000000 -0500
 330 @@ -726,6 +726,8 @@
 331
 332         /* Overload tuple linked list to put us in unconfirmed list. */
 333         list_add(&conntrack->tuplehash[IP_CT_DIR_ORIGINAL].list, &unconfirmed);
 334 +       conntrack->xid[IP_CT_DIR_ORIGINAL] = -1;
 335 +       conntrack->xid[IP_CT_DIR_REPLY] = -1;
 336
 337         write_unlock_bh(&nf_conntrack_lock);
 338
 339 diff -Nurb linux-2.6.22-510/net/netfilter/xt_MARK.c linux-2.6.22-520/net/netfilter/xt_MARK.c
 340 --- linux-2.6.22-510/net/netfilter/xt_MARK.c    2007-07-08 19:32:17.000000000 -0400
 341 +++ linux-2.6.22-520/net/netfilter/xt_MARK.c    2008-02-08 06:20:11.000000000 -0500
 342 @@ -5,13 +5,18 @@
 343   * This program is free software; you can redistribute it and/or modify
 344   * it under the terms of the GNU General Public License version 2 as
 345   * published by the Free Software Foundation.
 346 + *
 347   */
 348
 349  #include <linux/module.h>
 350 +#include <linux/version.h>
 351  #include <linux/skbuff.h>
 352  #include <linux/ip.h>
 353  #include <net/checksum.h>
 354 +#include <net/route.h>
 355 +#include <net/inet_hashtables.h>
 356
 357 +#include <net/netfilter/nf_conntrack.h>
 358  #include <linux/netfilter/x_tables.h>
 359  #include <linux/netfilter/xt_MARK.h>
 360
 361 @@ -21,6 +26,48 @@
 362  MODULE_ALIAS("ipt_MARK");
 363  MODULE_ALIAS("ip6t_MARK");
 364
 365 +static inline u_int16_t
 366 +get_dst_port(struct nf_conntrack_tuple *tuple)
 367 +{
 368 +       switch (tuple->dst.protonum) {
 369 +       case IPPROTO_GRE:
 370 +               /* XXX Truncate 32-bit GRE key to 16 bits */
 371 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,11)
 372 +               return tuple->dst.u.gre.key;
 373 +#else
 374 +               return htons(ntohl(tuple->dst.u.gre.key));
 375 +#endif
 376 +       case IPPROTO_ICMP:
 377 +               /* Bind on ICMP echo ID */
 378 +               return tuple->src.u.icmp.id;
 379 +       case IPPROTO_TCP:
 380 +               return tuple->dst.u.tcp.port;
 381 +       case IPPROTO_UDP:
 382 +               return tuple->dst.u.udp.port;
 383 +       default:
 384 +               return tuple->dst.u.all;
 385 +       }
 386 +}
 387 +
 388 +static inline u_int16_t
 389 +get_src_port(struct nf_conntrack_tuple *tuple)
 390 +{
 391 +       switch (tuple->dst.protonum) {
 392 +       case IPPROTO_GRE:
 393 +               /* XXX Truncate 32-bit GRE key to 16 bits */
 394 +               return htons(ntohl(tuple->src.u.gre.key));
 395 +       case IPPROTO_ICMP:
 396 +               /* Bind on ICMP echo ID */
 397 +               return tuple->src.u.icmp.id;
 398 +       case IPPROTO_TCP:
 399 +               return tuple->src.u.tcp.port;
 400 +       case IPPROTO_UDP:
 401 +               return tuple->src.u.udp.port;
 402 +       default:
 403 +               return tuple->src.u.all;
 404 +       }
 405 +}
 406 +
 407  static unsigned int
 408  target_v0(struct sk_buff **pskb,
 409           const struct net_device *in,
 410 @@ -44,7 +91,7 @@
 411           const void *targinfo)
 412  {
 413         const struct xt_mark_target_info_v1 *markinfo = targinfo;
 414 -       int mark = 0;
 415 +       int mark = -1;
 416
 417         switch (markinfo->mode) {
 418         case XT_MARK_SET:
 419 @@ -58,8 +105,49 @@
 420         case XT_MARK_OR:
 421                 mark = (*pskb)->mark | markinfo->mark;
 422                 break;
 423 +
 424 +       case XT_MARK_COPYXID: {
 425 +               enum ip_conntrack_info ctinfo;
 426 +               struct sock *connection_sk;
 427 +               int dif;
 428 +
 429 +               struct nf_conn *ct = nf_ct_get((*pskb), &ctinfo);
 430 +               extern struct inet_hashinfo tcp_hashinfo;
 431 +               enum ip_conntrack_dir dir;
 432 +
 433 +               if (!ct)
 434 +                       break;
 435 +               dir = CTINFO2DIR(ctinfo);
 436 +               u_int32_t src_ip = ct->tuplehash[dir].tuple.src.u3.ip;
 437 +               u_int16_t src_port = get_src_port(&ct->tuplehash[dir].tuple);
 438 +
 439 +               u_int32_t ip;
 440 +               u_int16_t port;
 441 +
 442 +               dif = ((struct rtable *)(*pskb)->dst)->rt_iif;
 443 +               ip = ct->tuplehash[dir].tuple.dst.u3.ip;
 444 +               port = get_dst_port(&ct->tuplehash[dir].tuple);
 445 +
 446 +               if ((*pskb)->sk)
 447 +                       connection_sk = (*pskb)->sk;
 448 +               else {
 449 +                       connection_sk = inet_lookup(&tcp_hashinfo, src_ip, src_port, ip, port, dif);
 450 +               }
 451 +
 452 +               if (connection_sk) {
 453 +                       connection_sk->sk_peercred.gid = connection_sk->sk_peercred.uid = ct->xid[dir];
 454 +                       ct->xid[!dir]=connection_sk->sk_xid;
 455 +                       connection_sk->sk_peercred.gid = connection_sk->sk_peercred.uid = connection_sk->sk_xid;
 456 +                       if (connection_sk->sk_xid != 0)
 457 +                               mark = connection_sk->sk_xid;
 458 +                       if (connection_sk != (*pskb)->sk)
 459 +                               sock_put(connection_sk);
 460 +               }
 461 +               break;
 462 +               }
 463         }
 464
 465 +       if (mark != -1)
 466         (*pskb)->mark = mark;
 467         return XT_CONTINUE;
 468  }
 469 @@ -92,7 +180,8 @@
 470
 471         if (markinfo->mode != XT_MARK_SET
 472             && markinfo->mode != XT_MARK_AND
 473 -           && markinfo->mode != XT_MARK_OR) {
 474 +           && markinfo->mode != XT_MARK_OR
 475 +           && markinfo->mode != XT_MARK_COPYXID) {
 476                 printk(KERN_WARNING "MARK: unknown mode %u\n",
 477                        markinfo->mode);
 478                 return 0;
 479 diff -Nurb linux-2.6.22-510/net/netfilter/xt_SETXID.c linux-2.6.22-520/net/netfilter/xt_SETXID.c
 480 --- linux-2.6.22-510/net/netfilter/xt_SETXID.c  1969-12-31 19:00:00.000000000 -0500
 481 +++ linux-2.6.22-520/net/netfilter/xt_SETXID.c  2008-02-02 04:52:17.000000000 -0500
 482 @@ -0,0 +1,79 @@
 483 +#include <linux/module.h>
 484 +#include <linux/skbuff.h>
 485 +#include <linux/ip.h>
 486 +#include <net/checksum.h>
 487 +#include <linux/vs_network.h>
 488 +
 489 +#include <linux/netfilter/x_tables.h>
 490 +#include <linux/netfilter/xt_SETXID.h>
 491 +
 492 +MODULE_LICENSE("GPL");
 493 +MODULE_AUTHOR("");
 494 +MODULE_DESCRIPTION("");
 495 +MODULE_ALIAS("ipt_SETXID");
 496 +
 497 +static unsigned int
 498 +target_v1(struct sk_buff **pskb,
 499 +         const struct net_device *in,
 500 +         const struct net_device *out,
 501 +         unsigned int hooknum,
 502 +         const struct xt_target *target,
 503 +         const void *targinfo)
 504 +{
 505 +       const struct xt_setxid_target_info_v1 *setxidinfo = targinfo;
 506 +
 507 +       switch (setxidinfo->mode) {
 508 +       case XT_SET_PACKET_XID:
 509 +                (*pskb)->skb_tag = setxidinfo->mark;
 510 +               break;
 511 +       }
 512 +       return XT_CONTINUE;
 513 +}
 514 +
 515 +
 516 +static int
 517 +checkentry_v1(const char *tablename,
 518 +             const void *entry,
 519 +             const struct xt_target *target,
 520 +             void *targinfo,
 521 +             unsigned int hook_mask)
 522 +{
 523 +       struct xt_setxid_target_info_v1 *setxidinfo = targinfo;
 524 +
 525 +       if (setxidinfo->mode != XT_SET_PACKET_XID) {
 526 +               printk(KERN_WARNING "SETXID: unknown mode %u\n",
 527 +                      setxidinfo->mode);
 528 +               return 0;
 529 +       }
 530 +
 531 +       return 1;
 532 +}
 533 +
 534 +static struct xt_target xt_setxid_target[] = {
 535 +       {
 536 +               .name           = "SETXID",
 537 +               .family         = AF_INET,
 538 +               .revision       = 1,
 539 +               .checkentry     = checkentry_v1,
 540 +               .target         = target_v1,
 541 +               .targetsize     = sizeof(struct xt_setxid_target_info_v1),
 542 +               .table          = "mangle",
 543 +               .me             = THIS_MODULE,
 544 +       }
 545 +};
 546 +
 547 +static int __init init(void)
 548 +{
 549 +       int err;
 550 +
 551 +       err = xt_register_targets(xt_setxid_target, ARRAY_SIZE(xt_setxid_target));
 552 +       return err;
 553 +}
 554 +
 555 +static void __exit fini(void)
 556 +{
 557 +       xt_unregister_targets(xt_setxid_target, ARRAY_SIZE(xt_setxid_target));
 558 +}
 559 +
 560 +module_init(init);
 561 +module_exit(fini);
 562 diff -Nurb linux-2.6.22-510/net/packet/af_packet.c linux-2.6.22-520/net/packet/af_packet.c
 563 --- linux-2.6.22-510/net/packet/af_packet.c     2007-07-08 19:32:17.000000000 -0400
 564 +++ linux-2.6.22-520/net/packet/af_packet.c     2008-02-02 04:52:17.000000000 -0500
 565 @@ -78,6 +78,7 @@
 566  #include <linux/poll.h>
 567  #include <linux/module.h>
 568  #include <linux/init.h>
 569 +#include <linux/vs_network.h>
 570
 571  #ifdef CONFIG_INET
 572  #include <net/inet_common.h>
 573 @@ -420,6 +421,10 @@
 574                                       unsigned int res)
 575  {
 576         struct sk_filter *filter;
 577 +       int tag = skb->skb_tag;
 578 +
 579 +       if (sk->sk_nx_info && !(tag == 1 || sk->sk_nid == tag))
 580 +               return 0;
 581
 582         rcu_read_lock_bh();
 583         filter = rcu_dereference(sk->sk_filter);
 584 @@ -984,7 +989,7 @@
 585         __be16 proto = (__force __be16)protocol; /* weird, but documented */
 586         int err;
 587
 588 -       if (!capable(CAP_NET_RAW))
 589 +       if (!nx_capable(CAP_NET_RAW, NXC_RAW_SEND))
 590                 return -EPERM;
 591         if (sock->type != SOCK_DGRAM && sock->type != SOCK_RAW &&
 592             sock->type != SOCK_PACKET)