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authorPatrick McHardy <kaber@trash.net>2007-12-17 21:50:37 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:58:36 -0800
commit3bc3fe5eed5e866c0871db6d745f3bf58af004ef (patch)
tree01c1906660209aeebd21307d61b5078d37e5baed /net/compat.c
parentd924357c50d83e76d30dd5b81b5804815a2ae31c (diff)
downloadlinux-3bc3fe5eed5e866c0871db6d745f3bf58af004ef.tar.gz
[NETFILTER]: ip6_tables: add compat support
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/compat.c')
-rw-r--r--net/compat.c106
1 files changed, 0 insertions, 106 deletions
diff --git a/net/compat.c b/net/compat.c
index f4ef4c04865..80013fb69a6 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -20,7 +20,6 @@
#include <linux/syscalls.h>
#include <linux/filter.h>
#include <linux/compat.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
#include <linux/security.h>
#include <net/scm.h>
@@ -317,107 +316,6 @@ void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
}
/*
- * For now, we assume that the compatibility and native version
- * of struct ipt_entry are the same - sfr. FIXME
- */
-struct compat_ipt_replace {
- char name[IPT_TABLE_MAXNAMELEN];
- u32 valid_hooks;
- u32 num_entries;
- u32 size;
- u32 hook_entry[NF_INET_NUMHOOKS];
- u32 underflow[NF_INET_NUMHOOKS];
- u32 num_counters;
- compat_uptr_t counters; /* struct ipt_counters * */
- struct ipt_entry entries[0];
-};
-
-static int do_netfilter_replace(int fd, int level, int optname,
- char __user *optval, int optlen)
-{
- struct compat_ipt_replace __user *urepl;
- struct ipt_replace __user *repl_nat;
- char name[IPT_TABLE_MAXNAMELEN];
- u32 origsize, tmp32, num_counters;
- unsigned int repl_nat_size;
- int ret;
- int i;
- compat_uptr_t ucntrs;
-
- urepl = (struct compat_ipt_replace __user *)optval;
- if (get_user(origsize, &urepl->size))
- return -EFAULT;
-
- /* Hack: Causes ipchains to give correct error msg --RR */
- if (optlen != sizeof(*urepl) + origsize)
- return -ENOPROTOOPT;
-
- /* XXX Assumes that size of ipt_entry is the same both in
- * native and compat environments.
- */
- repl_nat_size = sizeof(*repl_nat) + origsize;
- repl_nat = compat_alloc_user_space(repl_nat_size);
-
- ret = -EFAULT;
- if (put_user(origsize, &repl_nat->size))
- goto out;
-
- if (!access_ok(VERIFY_READ, urepl, optlen) ||
- !access_ok(VERIFY_WRITE, repl_nat, optlen))
- goto out;
-
- if (__copy_from_user(name, urepl->name, sizeof(urepl->name)) ||
- __copy_to_user(repl_nat->name, name, sizeof(repl_nat->name)))
- goto out;
-
- if (__get_user(tmp32, &urepl->valid_hooks) ||
- __put_user(tmp32, &repl_nat->valid_hooks))
- goto out;
-
- if (__get_user(tmp32, &urepl->num_entries) ||
- __put_user(tmp32, &repl_nat->num_entries))
- goto out;
-
- if (__get_user(num_counters, &urepl->num_counters) ||
- __put_user(num_counters, &repl_nat->num_counters))
- goto out;
-
- if (__get_user(ucntrs, &urepl->counters) ||
- __put_user(compat_ptr(ucntrs), &repl_nat->counters))
- goto out;
-
- if (__copy_in_user(&repl_nat->entries[0],
- &urepl->entries[0],
- origsize))
- goto out;
-
- for (i = 0; i < NF_INET_NUMHOOKS; i++) {
- if (__get_user(tmp32, &urepl->hook_entry[i]) ||
- __put_user(tmp32, &repl_nat->hook_entry[i]) ||
- __get_user(tmp32, &urepl->underflow[i]) ||
- __put_user(tmp32, &repl_nat->underflow[i]))
- goto out;
- }
-
- /*
- * Since struct ipt_counters just contains two u_int64_t members
- * we can just do the access_ok check here and pass the (converted)
- * pointer into the standard syscall. We hope that the pointer is
- * not misaligned ...
- */
- if (!access_ok(VERIFY_WRITE, compat_ptr(ucntrs),
- num_counters * sizeof(struct ipt_counters)))
- goto out;
-
-
- ret = sys_setsockopt(fd, level, optname,
- (char __user *)repl_nat, repl_nat_size);
-
-out:
- return ret;
-}
-
-/*
* A struct sock_filter is architecture independent.
*/
struct compat_sock_fprog {
@@ -485,10 +383,6 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
int err;
struct socket *sock;
- if (level == SOL_IPV6 && optname == IPT_SO_SET_REPLACE)
- return do_netfilter_replace(fd, level, optname,
- optval, optlen);
-
if (optlen < 0)
return -EINVAL;