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Update shortcut-fe

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This commit is contained in:
Ycarus (Yannick Chabanois) 2022-12-21 12:47:56 +01:00
parent cf871353f8
commit 89c7a3c206
17 changed files with 369 additions and 702 deletions
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38
fast-classifier/src/fast-classifier.c
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@ -36,9 +36,9 @@
#include <linux/hashtable.h>
#include <linux/version.h>
#include "sfe_backport.h"
#include "sfe.h"
#include "sfe_cm.h"
#include <sfe_backport.h>
#include <sfe.h>
#include <sfe_cm.h>
#include "fast-classifier.h"
typedef enum fast_classifier_exception {
@ -451,6 +451,10 @@ static u32 fc_conn_hash(sfe_ip_addr_t *saddr, sfe_ip_addr_t *daddr,
*/
static int fast_classifier_update_protocol(struct sfe_connection_create *p_sic, struct nf_conn *ct)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0)
struct net *net=NULL ;
struct nf_tcp_net *tn=NULL;
#endif
switch (p_sic->protocol) {
case IPPROTO_TCP:
p_sic->src_td_window_scale = ct->proto.tcp.seen[0].td_scale;
@ -461,8 +465,14 @@ static int fast_classifier_update_protocol(struct sfe_connection_create *p_sic,
p_sic->dest_td_max_window = ct->proto.tcp.seen[1].td_maxwin;
p_sic->dest_td_end = ct->proto.tcp.seen[1].td_end;
p_sic->dest_td_max_end = ct->proto.tcp.seen[1].td_maxend;
if (nf_ct_tcp_no_window_check
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0)
net = nf_ct_net(ct);
tn = nf_tcp_pernet(net);
if ((tn&&tn->tcp_no_window_check)
#else
if (nf_ct_tcp_no_window_check
#endif
|| (ct->proto.tcp.seen[0].flags & IP_CT_TCP_FLAG_BE_LIBERAL)
|| (ct->proto.tcp.seen[1].flags & IP_CT_TCP_FLAG_BE_LIBERAL)) {
p_sic->flags |= SFE_CREATE_FLAG_NO_SEQ_CHECK;
@ -1744,8 +1754,11 @@ static int __init fast_classifier_init(void)
{
struct fast_classifier *sc = &__sc;
int result = -1;
#ifdef CONFIG_SFE_ECM
int (*fast_recv)(struct sk_buff *skb);
#endif
printk(KERN_ALERT "fast-classifier (PBR safe v2.1.4a): starting up\n");
printk(KERN_ALERT "fast-classifier: starting up\n");
DEBUG_INFO("SFE CM init\n");
hash_init(fc_conn_ht);
@ -1810,6 +1823,7 @@ static int __init fast_classifier_init(void)
goto exit3;
}
#ifdef CONFIG_NF_CONNTRACK_EVENTS
/*
* Register a notifier hook to get fast notifications of expired connections.
*/
@ -1817,12 +1831,14 @@ static int __init fast_classifier_init(void)
result = nf_conntrack_register_chain_notifier(&init_net, &fast_classifier_conntrack_notifier);
#else
result = nf_conntrack_register_notifier(&init_net, &fast_classifier_conntrack_notifier);
#endif
if (result < 0) {
DEBUG_ERROR("can't register nf notifier hook: %d\n", result);
goto exit4;
}
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0))
result = genl_register_family(&fast_classifier_gnl_family);
if (result) {
@ -1865,7 +1881,16 @@ static int __init fast_classifier_init(void)
/*
* Hook the receive path in the network stack.
*/
#ifdef CONFIG_SFE_ECM
rcu_read_lock();
fast_recv = rcu_dereference(athrs_fast_nat_recv);
rcu_read_unlock();
if (!fast_recv) {
BUG_ON(athrs_fast_nat_recv);
}
#else
BUG_ON(athrs_fast_nat_recv);
#endif
RCU_INIT_POINTER(athrs_fast_nat_recv, fast_classifier_recv);
/*
@ -1974,3 +1999,4 @@ module_exit(fast_classifier_exit)
MODULE_DESCRIPTION("Shortcut Forwarding Engine - Connection Manager");
MODULE_LICENSE("Dual BSD/GPL");