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| author |   yangxingwu <xingwu.yang@gmail.com> | 2019-07-10 21:14:10 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-07-11 14:43:25 -0700 |
| commit | 416e8126a2672f6e91e9e81c6f5c07cf46808b13 (patch) | |
| tree | 022663d29eb3e3629f3004d2b02c72deb2e89209 /net/ipv6/netfilter | |
| parent | hsr: switch ->dellink() to ->ndo_uninit() (diff) | |
| download | linux-dev-416e8126a2672f6e91e9e81c6f5c07cf46808b13.tar.xz linux-dev-416e8126a2672f6e91e9e81c6f5c07cf46808b13.zip | |
ipv6: Use ipv6_authlen for len
The length of AH header is computed manually as (hp->hdrlen+2)<<2.
However, in include/linux/ipv6.h, a macro named ipv6_authlen is
already defined for exactly the same job. This commit replaces
the manual computation code with the macro.
Signed-off-by: yangxingwu <xingwu.yang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/netfilter')
| -rw-r--r-- | net/ipv6/netfilter/ip6t_ah.c | 2 | ||||
| -rw-r--r-- | net/ipv6/netfilter/ip6t_ipv6header.c | 2 | ||||
| -rw-r--r-- | net/ipv6/netfilter/nf_conntrack_reasm.c | 2 | ||||
| -rw-r--r-- | net/ipv6/netfilter/nf_log_ipv6.c | 2 |
4 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv6/netfilter/ip6t_ah.c b/net/ipv6/netfilter/ip6t_ah.c index 0228ff3636bb..4e15a14435e4 100644 --- a/net/ipv6/netfilter/ip6t_ah.c +++ b/net/ipv6/netfilter/ip6t_ah.c @@ -55,7 +55,7 @@ static bool ah_mt6(const struct sk_buff *skb, struct xt_action_param *par) return false; } - hdrlen = (ah->hdrlen + 2) << 2; + hdrlen = ipv6_authlen(ah); pr_debug("IPv6 AH LEN %u %u ", hdrlen, ah->hdrlen); pr_debug("RES %04X ", ah->reserved); diff --git a/net/ipv6/netfilter/ip6t_ipv6header.c b/net/ipv6/netfilter/ip6t_ipv6header.c index fd439f88377f..0fc6326ef499 100644 --- a/net/ipv6/netfilter/ip6t_ipv6header.c +++ b/net/ipv6/netfilter/ip6t_ipv6header.c @@ -71,7 +71,7 @@ ipv6header_mt6(const struct sk_buff *skb, struct xt_action_param *par) if (nexthdr == NEXTHDR_FRAGMENT) hdrlen = 8; else if (nexthdr == NEXTHDR_AUTH) - hdrlen = (hp->hdrlen + 2) << 2; + hdrlen = ipv6_authlen(hp); else hdrlen = ipv6_optlen(hp); diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index 398e1df41406..0f82c150543b 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -414,7 +414,7 @@ find_prev_fhdr(struct sk_buff *skb, u8 *prevhdrp, int *prevhoff, int *fhoff) if (skb_copy_bits(skb, start, &hdr, sizeof(hdr))) BUG(); if (nexthdr == NEXTHDR_AUTH) - hdrlen = (hdr.hdrlen+2)<<2; + hdrlen = ipv6_authlen(&hdr); else hdrlen = ipv6_optlen(&hdr); diff --git a/net/ipv6/netfilter/nf_log_ipv6.c b/net/ipv6/netfilter/nf_log_ipv6.c index 549c51156d5d..f53bd8f01219 100644 --- a/net/ipv6/netfilter/nf_log_ipv6.c +++ b/net/ipv6/netfilter/nf_log_ipv6.c @@ -155,7 +155,7 @@ static void dump_ipv6_packet(struct net *net, struct nf_log_buf *m, } - hdrlen = (hp->hdrlen+2)<<2; + hdrlen = ipv6_authlen(hp); break; case IPPROTO_ESP: if (logflags & NF_LOG_IPOPT) { |