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312 lines
10 KiB
312 lines
10 KiB
Restore support for kernel 4.9
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This reverts commits:
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94656621ed269882aedf116f900009f1ccade3f6
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95d4f9e113fae3ef1e161548fe25c43c091392e3
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123e1a14e95f01b6ba2e4a31b3b2a74ff250be57
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f4f3f9860916d2ec88eb8339680d9ca0f64d41a4
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9b1c7c1c047f0e9c6cb4f9abbdb9fd7b86ae6c1b
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---
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configure.ac | 2 +-
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extensions/ACCOUNT/xt_ACCOUNT.c | 4 ++++
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extensions/compat_xtables.h | 8 ++++++--
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extensions/xt_CHAOS.c | 28 ++++++++++++++++++++++++++--
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extensions/xt_DELUDE.c | 8 +++++++-
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extensions/xt_DNETMAP.c | 13 +++++++++++++
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extensions/xt_ECHO.c | 4 ++++
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extensions/xt_LOGMARK.c | 8 ++++++++
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extensions/xt_TARPIT.c | 10 ++++++++++
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extensions/xt_iface.c | 8 ++++++++
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extensions/xt_lscan.c | 4 ++++
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11 files changed, 91 insertions(+), 6 deletions(-)
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diff --git a/configure.ac b/configure.ac
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index 0d3aa72..1cea354 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -61,7 +61,7 @@ if test -n "$kbuilddir"; then
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echo "WARNING: That kernel version is not officially supported yet. Continue at own luck.";
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elif test "$kmajor" -eq 5 -a "$kminor" -ge 0; then
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:
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- elif test "$kmajor" -eq 4 -a "$kminor" -ge 14; then
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+ elif test "$kmajor" -eq 4 -a "$kminor" -ge 9; then
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:
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else
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echo "WARNING: That kernel version is not officially supported.";
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diff --git a/extensions/ACCOUNT/xt_ACCOUNT.c b/extensions/ACCOUNT/xt_ACCOUNT.c
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index 019f5bd..8abe8ab 100644
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--- a/extensions/ACCOUNT/xt_ACCOUNT.c
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+++ b/extensions/ACCOUNT/xt_ACCOUNT.c
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@@ -485,7 +485,11 @@ static void ipt_acc_depth2_insert(struct ipt_acc_mask_8 *mask_8,
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static unsigned int
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ipt_acc_target(struct sk_buff *skb, const struct xt_action_param *par)
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{
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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struct ipt_acc_net *ian = net_generic(par->state->net, ipt_acc_net_id);
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+#else
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+ struct ipt_acc_net *ian = net_generic(par->net, ipt_acc_net_id);
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+#endif
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struct ipt_acc_table *ipt_acc_tables = ian->ipt_acc_tables;
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const struct ipt_acc_info *info =
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par->targinfo;
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diff --git a/extensions/compat_xtables.h b/extensions/compat_xtables.h
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index faf5dd8..23785d9 100644
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--- a/extensions/compat_xtables.h
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+++ b/extensions/compat_xtables.h
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@@ -8,8 +8,8 @@
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#define DEBUGP Use__pr_debug__instead
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-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0)
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-# warning Kernels below 4.14 not supported.
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 9, 0)
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+# warning Kernels below 4.9 not supported.
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#endif
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#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
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@@ -44,7 +44,11 @@
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static inline struct net *par_net(const struct xt_action_param *par)
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{
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0)
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return par->state->net;
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+#else
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+ return par->net;
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+#endif
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}
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#ifndef NF_CT_ASSERT
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diff --git a/extensions/xt_CHAOS.c b/extensions/xt_CHAOS.c
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index eec36d4..cee2026 100644
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--- a/extensions/xt_CHAOS.c
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+++ b/extensions/xt_CHAOS.c
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@@ -58,7 +58,12 @@ xt_chaos_total(struct sk_buff *skb, const struct xt_action_param *par)
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{
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struct xt_action_param local_par;
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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local_par.state = par->state;
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+#else
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+ local_par.in = par->in,
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+ local_par.out = par->out,
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+#endif
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local_par.match = xm_tcp;
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local_par.matchinfo = &tcp_params;
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local_par.fragoff = fragoff;
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@@ -73,7 +78,14 @@ xt_chaos_total(struct sk_buff *skb, const struct xt_action_param *par)
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destiny = (info->variant == XTCHAOS_TARPIT) ? xt_tarpit : xt_delude;
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{
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struct xt_action_param local_par;
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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local_par.state = par->state;
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+#else
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+ local_par.in = par->in;
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+ local_par.out = par->out;
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+ local_par.hooknum = par->hooknum;
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+ local_par.family = par->family;
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+#endif
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local_par.target = destiny;
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local_par.targinfo = par->targinfo;
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destiny->target(skb, &local_par);
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@@ -96,15 +108,27 @@ chaos_tg(struct sk_buff *skb, const struct xt_action_param *par)
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if ((unsigned int)prandom_u32() <= reject_percentage) {
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struct xt_action_param local_par;
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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local_par.state = par->state;
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+#else
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+ local_par.in = par->in;
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+ local_par.out = par->out;
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+ local_par.hooknum = par->hooknum;
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+#endif
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local_par.target = xt_reject;
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local_par.targinfo = &reject_params;
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return xt_reject->target(skb, &local_par);
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}
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/* TARPIT/DELUDE may not be called from the OUTPUT chain */
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- if (iph->protocol == IPPROTO_TCP && info->variant != XTCHAOS_NORMAL &&
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- par->state->hook != NF_INET_LOCAL_OUT)
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+ if (iph->protocol == IPPROTO_TCP &&
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+ info->variant != XTCHAOS_NORMAL &&
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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+ par->state->hook
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+#else
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+ par->hooknum
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+#endif
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+ != NF_INET_LOCAL_OUT)
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xt_chaos_total(skb, par);
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return NF_DROP;
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diff --git a/extensions/xt_DELUDE.c b/extensions/xt_DELUDE.c
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index 618de5e..221f342 100644
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--- a/extensions/xt_DELUDE.c
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+++ b/extensions/xt_DELUDE.c
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@@ -151,7 +151,13 @@ delude_tg(struct sk_buff *skb, const struct xt_action_param *par)
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* a problem, as that is supported since Linux 2.6.35. But since we do not
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* actually want to have a connection open, we are still going to drop it.
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*/
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- delude_send_reset(par_net(par), skb, par->state->hook);
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+ delude_send_reset(par_net(par), skb,
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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+ par->state->hook
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+#else
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+ par->hooknum
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+#endif
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+ );
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return NF_DROP;
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}
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diff --git a/extensions/xt_DNETMAP.c b/extensions/xt_DNETMAP.c
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index de7d4ec..36a59e2 100644
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--- a/extensions/xt_DNETMAP.c
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+++ b/extensions/xt_DNETMAP.c
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@@ -356,7 +356,11 @@ out:
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static unsigned int
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dnetmap_tg(struct sk_buff *skb, const struct xt_action_param *par)
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{
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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struct net *net = dev_net(par->state->in ? par->state->in : par->state->out);
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+#else
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+ struct net *net = dev_net(par->in ? par->in : par->out);
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+#endif
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struct dnetmap_net *dnetmap_net = dnetmap_pernet(net);
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struct nf_conn *ct;
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enum ip_conntrack_info ctinfo;
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@@ -371,7 +375,11 @@ dnetmap_tg(struct sk_buff *skb, const struct xt_action_param *par)
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struct dnetmap_entry *e;
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struct dnetmap_prefix *p;
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__s32 jttl;
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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unsigned int hooknum = par->state->hook;
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+#else
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+ unsigned int hooknum = par->hooknum;
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+#endif
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ct = nf_ct_get(skb, &ctinfo);
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jttl = tginfo->flags & XT_DNETMAP_TTL ? tginfo->ttl * HZ : jtimeout;
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@@ -496,7 +504,12 @@ bind_new_prefix:
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newrange.max_addr.ip = postnat_ip;
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newrange.min_proto = mr->min_proto;
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newrange.max_proto = mr->max_proto;
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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return nf_nat_setup_info(ct, &newrange, HOOK2MANIP(par->state->hook));
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+#else
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+ return nf_nat_setup_info(ct, &newrange, HOOK2MANIP(par->hooknum));
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+#endif
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+
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no_rev_map:
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no_free_ip:
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spin_unlock_bh(&dnetmap_lock);
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diff --git a/extensions/xt_ECHO.c b/extensions/xt_ECHO.c
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index e99312b..60cb815 100644
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--- a/extensions/xt_ECHO.c
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+++ b/extensions/xt_ECHO.c
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@@ -35,7 +35,11 @@ echo_tg6(struct sk_buff *oldskb, const struct xt_action_param *par)
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void *payload;
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struct flowi6 fl;
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struct dst_entry *dst = NULL;
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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struct net *net = dev_net((par->state->in != NULL) ? par->state->in : par->state->out);
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+#else
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+ struct net *net = dev_net((par->in != NULL) ? par->in : par->out);
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+#endif
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/* This allows us to do the copy operation in fewer lines of code. */
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if (skb_linearize(oldskb) < 0)
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diff --git a/extensions/xt_LOGMARK.c b/extensions/xt_LOGMARK.c
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index 0474bf8..02e32be 100644
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--- a/extensions/xt_LOGMARK.c
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+++ b/extensions/xt_LOGMARK.c
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@@ -77,13 +77,21 @@ logmark_tg(struct sk_buff *skb, const struct xt_action_param *par)
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printk("<%u>%.*s""iif=%d hook=%s nfmark=0x%x "
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"secmark=0x%x classify=0x%x",
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info->level, (unsigned int)sizeof(info->prefix), info->prefix,
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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skb_ifindex(skb), hook_names[par->state->hook],
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+#else
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+ skb_ifindex(skb), hook_names[par->hooknum],
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+#endif
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skb_nfmark(skb), skb_secmark(skb), skb->priority);
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ct = nf_ct_get(skb, &ctinfo);
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printk(" ctdir=%s", dir_names[ctinfo >= IP_CT_IS_REPLY]);
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if (ct == NULL)
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printk(" ct=NULL ctmark=NULL ctstate=INVALID ctstatus=NONE");
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 12, 0)
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+ else if (nf_ct_is_untracked(ct))
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+ printk(" ct=UNTRACKED ctmark=NULL ctstate=UNTRACKED ctstatus=NONE");
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+#endif
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else
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logmark_ct(ct, ctinfo);
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diff --git a/extensions/xt_TARPIT.c b/extensions/xt_TARPIT.c
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index cb98e9e..b78683c 100644
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--- a/extensions/xt_TARPIT.c
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+++ b/extensions/xt_TARPIT.c
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@@ -436,7 +436,12 @@ tarpit_tg4(struct sk_buff *skb, const struct xt_action_param *par)
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/* We are not interested in fragments */
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if (iph->frag_off & htons(IP_OFFSET))
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return NF_DROP;
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+
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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tarpit_tcp4(par_net(par), skb, par->state->hook, info->variant);
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+#else
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+ tarpit_tcp4(par_net(par), skb, par->hooknum, info->variant);
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+#endif
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return NF_DROP;
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}
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@@ -477,7 +482,12 @@ tarpit_tg6(struct sk_buff *skb, const struct xt_action_param *par)
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pr_debug("addr is not unicast.\n");
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return NF_DROP;
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}
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+
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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tarpit_tcp6(par_net(par), skb, par->state->hook, info->variant);
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+#else
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+ tarpit_tcp6(par_net(par), skb, par->hooknum, info->variant);
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+#endif
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return NF_DROP;
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}
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#endif
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diff --git a/extensions/xt_iface.c b/extensions/xt_iface.c
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index 7704686..be52a52 100644
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--- a/extensions/xt_iface.c
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+++ b/extensions/xt_iface.c
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@@ -45,9 +45,17 @@ static const struct net_device *iface_get(const struct xt_iface_mtinfo *info,
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const struct xt_action_param *par, struct net_device **put)
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{
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if (info->flags & XT_IFACE_DEV_IN)
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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return par->state->in;
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+#else
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+ return par->in;
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+#endif
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else if (info->flags & XT_IFACE_DEV_OUT)
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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return par->state->out;
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+#else
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+ return par->out;
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+#endif
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return *put = dev_get_by_name(&init_net, info->ifname);
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}
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diff --git a/extensions/xt_lscan.c b/extensions/xt_lscan.c
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index 060fe44..3a7d2ed 100644
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--- a/extensions/xt_lscan.c
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+++ b/extensions/xt_lscan.c
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@@ -204,7 +204,11 @@ lscan_mt(const struct sk_buff *skb, struct xt_action_param *par)
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unsigned int n;
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n = lscan_mt_full(ctdata->mark & connmark_mask, ctstate,
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
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par->state->in == init_net.loopback_dev, tcph,
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+#else
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+ par->in == init_net.loopback_dev, tcph,
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+#endif
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skb->len - par->thoff - 4 * tcph->doff);
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ctdata->mark = (ctdata->mark & ~connmark_mask) | n;
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--
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2.21.0
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