AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-04-12 18:08:15 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

skbuff: add and use skb_nfct helper

Browse Source 
Followup patch renames skb->nfct and changes its type so add a helper to
avoid intrusive rename change later.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2017-01-23 18:21:56 +01:00 committed by Pablo Neira Ayuso
parent 97a6ad13de
commit cb9c68363e
15 changed files with 36 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
include/linux/skbuff.h
View File

@ -3553,6 +3553,15 @@ static inline void skb_remcsum_process(struct sk_buff *skb, void *ptr,
skb->csum = csum_add(skb->csum, delta); skb->csum = csum_add(skb->csum, delta);
} }
static inline struct nf_conntrack *skb_nfct(const struct sk_buff *skb)
{
#if IS_ENABLED(CONFIG_NF_CONNTRACK)
return skb->nfct;
#else
return NULL;
#endif
}
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE) #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
void nf_conntrack_destroy(struct nf_conntrack *nfct); void nf_conntrack_destroy(struct nf_conntrack *nfct);
static inline void nf_conntrack_put(struct nf_conntrack *nfct) static inline void nf_conntrack_put(struct nf_conntrack *nfct)
@ -3652,9 +3661,7 @@ static inline bool skb_irq_freeable(const struct sk_buff *skb)
#if IS_ENABLED(CONFIG_XFRM) #if IS_ENABLED(CONFIG_XFRM)
!skb->sp && !skb->sp &&
#endif #endif
#if IS_ENABLED(CONFIG_NF_CONNTRACK) !skb_nfct(skb) &&
!skb->nfct &&
#endif
!skb->_skb_refdst && !skb->_skb_refdst &&
!skb_has_frag_list(skb); !skb_has_frag_list(skb);
} }

2
include/net/netfilter/nf_conntrack_core.h
View File

@ -62,7 +62,7 @@ int __nf_conntrack_confirm(struct sk_buff *skb);
/* Confirm a connection: returns NF_DROP if packet must be dropped. */ /* Confirm a connection: returns NF_DROP if packet must be dropped. */
static inline int nf_conntrack_confirm(struct sk_buff *skb) static inline int nf_conntrack_confirm(struct sk_buff *skb)
{ {
struct nf_conn *ct = (struct nf_conn *)skb->nfct; struct nf_conn *ct = (struct nf_conn *)skb_nfct(skb);
int ret = NF_ACCEPT; int ret = NF_ACCEPT;
if (ct && !nf_ct_is_untracked(ct)) { if (ct && !nf_ct_is_untracked(ct)) {

2
net/core/skbuff.c
View File

@ -655,7 +655,7 @@ static void skb_release_head_state(struct sk_buff *skb)
skb->destructor(skb); skb->destructor(skb);
} }
#if IS_ENABLED(CONFIG_NF_CONNTRACK) #if IS_ENABLED(CONFIG_NF_CONNTRACK)
nf_conntrack_put(skb->nfct); nf_conntrack_put(skb_nfct(skb));
#endif #endif
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
nf_bridge_put(skb->nf_bridge); nf_bridge_put(skb->nf_bridge);

8
net/ipv4/netfilter/ipt_SYNPROXY.c
View File

@ -107,8 +107,8 @@ synproxy_send_client_synack(struct net *net,
synproxy_build_options(nth, opts); synproxy_build_options(nth, opts);
synproxy_send_tcp(net, skb, nskb, skb->nfct, IP_CT_ESTABLISHED_REPLY, synproxy_send_tcp(net, skb, nskb, skb_nfct(skb),
niph, nth, tcp_hdr_size); IP_CT_ESTABLISHED_REPLY, niph, nth, tcp_hdr_size);
} }
static void static void
@ -230,8 +230,8 @@ synproxy_send_client_ack(struct net *net,
synproxy_build_options(nth, opts); synproxy_build_options(nth, opts);
synproxy_send_tcp(net, skb, nskb, skb->nfct, IP_CT_ESTABLISHED_REPLY, synproxy_send_tcp(net, skb, nskb, skb_nfct(skb),
niph, nth, tcp_hdr_size); IP_CT_ESTABLISHED_REPLY, niph, nth, tcp_hdr_size);
} }
static bool static bool

2
net/ipv4/netfilter/nf_conntrack_proto_icmp.c
View File

@ -137,7 +137,7 @@ icmp_error_message(struct net *net, struct nf_conn *tmpl, struct sk_buff *skb,
enum ip_conntrack_info ctinfo; enum ip_conntrack_info ctinfo;
struct nf_conntrack_zone tmp; struct nf_conntrack_zone tmp;
NF_CT_ASSERT(skb->nfct == NULL); NF_CT_ASSERT(!skb_nfct(skb));
zone = nf_ct_zone_tmpl(tmpl, skb, &tmp); zone = nf_ct_zone_tmpl(tmpl, skb, &tmp);
/* Are they talking about one of our connections? */ /* Are they talking about one of our connections? */

4
net/ipv4/netfilter/nf_defrag_ipv4.c
View File

@ -45,7 +45,7 @@ static enum ip_defrag_users nf_ct_defrag_user(unsigned int hooknum,
{ {
u16 zone_id = NF_CT_DEFAULT_ZONE_ID; u16 zone_id = NF_CT_DEFAULT_ZONE_ID;
#if IS_ENABLED(CONFIG_NF_CONNTRACK) #if IS_ENABLED(CONFIG_NF_CONNTRACK)
if (skb->nfct) { if (skb_nfct(skb)) {
enum ip_conntrack_info ctinfo; enum ip_conntrack_info ctinfo;
const struct nf_conn *ct = nf_ct_get(skb, &ctinfo); const struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
@ -75,7 +75,7 @@ static unsigned int ipv4_conntrack_defrag(void *priv,
#if !IS_ENABLED(CONFIG_NF_NAT) #if !IS_ENABLED(CONFIG_NF_NAT)
/* Previously seen (loopback)? Ignore. Do this before /* Previously seen (loopback)? Ignore. Do this before
fragment check. */ fragment check. */
if (skb->nfct && !nf_ct_is_template((struct nf_conn *)skb->nfct)) if (skb_nfct(skb) && !nf_ct_is_template((struct nf_conn *)skb_nfct(skb)))
return NF_ACCEPT; return NF_ACCEPT;
#endif #endif
#endif #endif

2
net/ipv4/netfilter/nf_dup_ipv4.c
View File

@ -71,7 +71,7 @@ void nf_dup_ipv4(struct net *net, struct sk_buff *skb, unsigned int hooknum,
nf_reset(skb); nf_reset(skb);
skb->nfct = &nf_ct_untracked_get()->ct_general; skb->nfct = &nf_ct_untracked_get()->ct_general;
skb->nfctinfo = IP_CT_NEW; skb->nfctinfo = IP_CT_NEW;
nf_conntrack_get(skb->nfct); nf_conntrack_get(skb_nfct(skb));
#endif #endif
/* /*
* If we are in PREROUTING/INPUT, decrease the TTL to mitigate potential * If we are in PREROUTING/INPUT, decrease the TTL to mitigate potential

8
net/ipv6/netfilter/ip6t_SYNPROXY.c
View File

@ -121,8 +121,8 @@ synproxy_send_client_synack(struct net *net,
synproxy_build_options(nth, opts); synproxy_build_options(nth, opts);
synproxy_send_tcp(net, skb, nskb, skb->nfct, IP_CT_ESTABLISHED_REPLY, synproxy_send_tcp(net, skb, nskb, skb_nfct(skb),
niph, nth, tcp_hdr_size); IP_CT_ESTABLISHED_REPLY, niph, nth, tcp_hdr_size);
} }
static void static void
@ -244,8 +244,8 @@ synproxy_send_client_ack(struct net *net,
synproxy_build_options(nth, opts); synproxy_build_options(nth, opts);
synproxy_send_tcp(net, skb, nskb, skb->nfct, IP_CT_ESTABLISHED_REPLY, synproxy_send_tcp(net, skb, nskb, skb_nfct(skb),
niph, nth, tcp_hdr_size); IP_CT_ESTABLISHED_REPLY, niph, nth, tcp_hdr_size);
} }
static bool static bool

4
net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
View File

@ -153,7 +153,7 @@ icmpv6_error_message(struct net *net, struct nf_conn *tmpl,
enum ip_conntrack_info ctinfo; enum ip_conntrack_info ctinfo;
struct nf_conntrack_zone tmp; struct nf_conntrack_zone tmp;
NF_CT_ASSERT(skb->nfct == NULL); NF_CT_ASSERT(!skb_nfct(skb));
/* Are they talking about one of our connections? */ /* Are they talking about one of our connections? */
if (!nf_ct_get_tuplepr(skb, if (!nf_ct_get_tuplepr(skb,
@ -224,7 +224,7 @@ icmpv6_error(struct net *net, struct nf_conn *tmpl,
noct_valid_new[type]) { noct_valid_new[type]) {
skb->nfct = &nf_ct_untracked_get()->ct_general; skb->nfct = &nf_ct_untracked_get()->ct_general;
skb->nfctinfo = IP_CT_NEW; skb->nfctinfo = IP_CT_NEW;
nf_conntrack_get(skb->nfct); nf_conntrack_get(skb_nfct(skb));
return NF_ACCEPT; return NF_ACCEPT;
} }

4
net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
View File

@ -37,7 +37,7 @@ static enum ip6_defrag_users nf_ct6_defrag_user(unsigned int hooknum,
{ {
u16 zone_id = NF_CT_DEFAULT_ZONE_ID; u16 zone_id = NF_CT_DEFAULT_ZONE_ID;
#if IS_ENABLED(CONFIG_NF_CONNTRACK) #if IS_ENABLED(CONFIG_NF_CONNTRACK)
if (skb->nfct) { if (skb_nfct(skb)) {
enum ip_conntrack_info ctinfo; enum ip_conntrack_info ctinfo;
const struct nf_conn *ct = nf_ct_get(skb, &ctinfo); const struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
@ -61,7 +61,7 @@ static unsigned int ipv6_defrag(void *priv,
#if IS_ENABLED(CONFIG_NF_CONNTRACK) #if IS_ENABLED(CONFIG_NF_CONNTRACK)
/* Previously seen (loopback)? */ /* Previously seen (loopback)? */
if (skb->nfct && !nf_ct_is_template((struct nf_conn *)skb->nfct)) if (skb_nfct(skb) && !nf_ct_is_template((struct nf_conn *)skb_nfct(skb)))
return NF_ACCEPT; return NF_ACCEPT;
#endif #endif

4
net/netfilter/nf_conntrack_core.c
View File

@ -1357,7 +1357,7 @@ nf_conntrack_in(struct net *net, u_int8_t pf, unsigned int hooknum,
goto out; goto out;
} }
NF_CT_ASSERT(skb->nfct); NF_CT_ASSERT(skb_nfct(skb));
/* Decide what timeout policy we want to apply to this flow. */ /* Decide what timeout policy we want to apply to this flow. */
timeouts = nf_ct_timeout_lookup(net, ct, l4proto); timeouts = nf_ct_timeout_lookup(net, ct, l4proto);
@ -1528,7 +1528,7 @@ static void nf_conntrack_attach(struct sk_buff *nskb, const struct sk_buff *skb)
/* Attach to new skbuff, and increment count */ /* Attach to new skbuff, and increment count */
nskb->nfct = &ct->ct_general; nskb->nfct = &ct->ct_general;
nskb->nfctinfo = ctinfo; nskb->nfctinfo = ctinfo;
nf_conntrack_get(nskb->nfct); nf_conntrack_get(skb_nfct(nskb));
} }
/* Bring out ya dead! */ /* Bring out ya dead! */

2
net/netfilter/nf_nat_helper.c
View File

@ -60,7 +60,7 @@ static void mangle_contents(struct sk_buff *skb,
__skb_trim(skb, skb->len + rep_len - match_len); __skb_trim(skb, skb->len + rep_len - match_len);
} }
if (nf_ct_l3num((struct nf_conn *)skb->nfct) == NFPROTO_IPV4) { if (nf_ct_l3num((struct nf_conn *)skb_nfct(skb)) == NFPROTO_IPV4) {
/* fix IP hdr checksum information */ /* fix IP hdr checksum information */
ip_hdr(skb)->tot_len = htons(skb->len); ip_hdr(skb)->tot_len = htons(skb->len);
ip_send_check(ip_hdr(skb)); ip_send_check(ip_hdr(skb));

2
net/netfilter/xt_CT.c
View File

@ -415,7 +415,7 @@ notrack_tg(struct sk_buff *skb, const struct xt_action_param *par)
skb->nfct = &nf_ct_untracked_get()->ct_general; skb->nfct = &nf_ct_untracked_get()->ct_general;
skb->nfctinfo = IP_CT_NEW; skb->nfctinfo = IP_CT_NEW;
nf_conntrack_get(skb->nfct); nf_conntrack_get(skb_nfct(skb));
return XT_CONTINUE; return XT_CONTINUE;
} }

6
net/openvswitch/conntrack.c
View File

@ -721,8 +721,8 @@ static int __ovs_ct_lookup(struct net *net, struct sw_flow_key *key,
/* Associate skb with specified zone. */ /* Associate skb with specified zone. */
if (tmpl) { if (tmpl) {
if (skb->nfct) if (skb_nfct(skb))
nf_conntrack_put(skb->nfct); nf_conntrack_put(skb_nfct(skb));
nf_conntrack_get(&tmpl->ct_general); nf_conntrack_get(&tmpl->ct_general);
skb->nfct = &tmpl->ct_general; skb->nfct = &tmpl->ct_general;
skb->nfctinfo = IP_CT_NEW; skb->nfctinfo = IP_CT_NEW;
@ -819,7 +819,7 @@ static int ovs_ct_lookup(struct net *net, struct sw_flow_key *key,
if (err) if (err)
return err; return err;
ct = (struct nf_conn *)skb->nfct; ct = (struct nf_conn *)skb_nfct(skb);
if (ct) if (ct)
nf_ct_deliver_cached_events(ct); nf_ct_deliver_cached_events(ct);
} }

2
net/sched/cls_flow.c
View File

@ -129,7 +129,7 @@ static u32 flow_get_mark(const struct sk_buff *skb)
static u32 flow_get_nfct(const struct sk_buff *skb) static u32 flow_get_nfct(const struct sk_buff *skb)
{ {
#if IS_ENABLED(CONFIG_NF_CONNTRACK) #if IS_ENABLED(CONFIG_NF_CONNTRACK)
return addr_fold(skb->nfct); return addr_fold(skb_nfct(skb));
#else #else
return 0; return 0;
#endif #endif