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authorPablo Neira Ayuso <pablo@netfilter.org>2021-10-28 21:47:55 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2021-11-01 09:30:20 +0100
commitb5bdc6f9c24db9a0adf8bd00c0e935b184654f00 (patch)
treebcdd60d50967115fb4dbce2ea7d1dc62da7da199 /include/net
parent56fa95014a0447f798444e626091cbeb3176af24 (diff)
netfilter: nf_tables: convert pktinfo->tprot_set to flags field
Generalize boolean field to store more flags on the pktinfo structure. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/netfilter/nf_tables.h8
-rw-r--r--include/net/netfilter/nf_tables_ipv4.h7
-rw-r--r--include/net/netfilter/nf_tables_ipv6.h6
3 files changed, 13 insertions, 8 deletions
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index a16171c5fd9e..7e3188cf4a7d 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -21,10 +21,14 @@ struct module;
#define NFT_JUMP_STACK_SIZE 16
+enum {
+ NFT_PKTINFO_L4PROTO = (1 << 0),
+};
+
struct nft_pktinfo {
struct sk_buff *skb;
const struct nf_hook_state *state;
- bool tprot_set;
+ u8 flags;
u8 tprot;
u16 fragoff;
unsigned int thoff;
@@ -75,7 +79,7 @@ static inline void nft_set_pktinfo(struct nft_pktinfo *pkt,
static inline void nft_set_pktinfo_unspec(struct nft_pktinfo *pkt)
{
- pkt->tprot_set = false;
+ pkt->flags = 0;
pkt->tprot = 0;
pkt->thoff = 0;
pkt->fragoff = 0;
diff --git a/include/net/netfilter/nf_tables_ipv4.h b/include/net/netfilter/nf_tables_ipv4.h
index eb4c094cd54d..c4a6147b0ef8 100644
--- a/include/net/netfilter/nf_tables_ipv4.h
+++ b/include/net/netfilter/nf_tables_ipv4.h
@@ -10,7 +10,7 @@ static inline void nft_set_pktinfo_ipv4(struct nft_pktinfo *pkt)
struct iphdr *ip;
ip = ip_hdr(pkt->skb);
- pkt->tprot_set = true;
+ pkt->flags = NFT_PKTINFO_L4PROTO;
pkt->tprot = ip->protocol;
pkt->thoff = ip_hdrlen(pkt->skb);
pkt->fragoff = ntohs(ip->frag_off) & IP_OFFSET;
@@ -36,7 +36,7 @@ static inline int __nft_set_pktinfo_ipv4_validate(struct nft_pktinfo *pkt)
else if (len < thoff)
return -1;
- pkt->tprot_set = true;
+ pkt->flags = NFT_PKTINFO_L4PROTO;
pkt->tprot = iph->protocol;
pkt->thoff = thoff;
pkt->fragoff = ntohs(iph->frag_off) & IP_OFFSET;
@@ -71,7 +71,7 @@ static inline int nft_set_pktinfo_ipv4_ingress(struct nft_pktinfo *pkt)
goto inhdr_error;
}
- pkt->tprot_set = true;
+ pkt->flags = NFT_PKTINFO_L4PROTO;
pkt->tprot = iph->protocol;
pkt->thoff = thoff;
pkt->fragoff = ntohs(iph->frag_off) & IP_OFFSET;
@@ -82,4 +82,5 @@ inhdr_error:
__IP_INC_STATS(nft_net(pkt), IPSTATS_MIB_INHDRERRORS);
return -1;
}
+
#endif
diff --git a/include/net/netfilter/nf_tables_ipv6.h b/include/net/netfilter/nf_tables_ipv6.h
index 7595e02b00ba..ec7eaeaf4f04 100644
--- a/include/net/netfilter/nf_tables_ipv6.h
+++ b/include/net/netfilter/nf_tables_ipv6.h
@@ -18,7 +18,7 @@ static inline void nft_set_pktinfo_ipv6(struct nft_pktinfo *pkt)
return;
}
- pkt->tprot_set = true;
+ pkt->flags = NFT_PKTINFO_L4PROTO;
pkt->tprot = protohdr;
pkt->thoff = thoff;
pkt->fragoff = frag_off;
@@ -50,7 +50,7 @@ static inline int __nft_set_pktinfo_ipv6_validate(struct nft_pktinfo *pkt)
if (protohdr < 0)
return -1;
- pkt->tprot_set = true;
+ pkt->flags = NFT_PKTINFO_L4PROTO;
pkt->tprot = protohdr;
pkt->thoff = thoff;
pkt->fragoff = frag_off;
@@ -96,7 +96,7 @@ static inline int nft_set_pktinfo_ipv6_ingress(struct nft_pktinfo *pkt)
if (protohdr < 0)
goto inhdr_error;
- pkt->tprot_set = true;
+ pkt->flags = NFT_PKTINFO_L4PROTO;
pkt->tprot = protohdr;
pkt->thoff = thoff;
pkt->fragoff = frag_off;