diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-05-31 00:08:09 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-06-07 12:23:36 +0200 |
| commit | ef4b65e53cc77e2b3ca4667b461047ad04fb45fa (patch) | |
| tree | d1db826d0a251adf70d84422bad19d6addc2a30a /net/netfilter/nft_compat.c | |
| parent | 1a42624aecba438f1d114430a14b640cdfa51c87 (diff) | |
| download | linux-ef4b65e53cc77e2b3ca4667b461047ad04fb45fa.tar.gz | |
netfilter: nfnetlink: add struct nfgenmsg to struct nfnl_info and use it
Update the nfnl_info structure to add a pointer to the nfnetlink header.
This simplifies the existing codebase since this header is usually
accessed. Update existing clients to use this new field.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nft_compat.c')
| -rw-r--r-- | net/netfilter/nft_compat.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c index 3144a9ad2f6a60..639c337c885b18 100644 --- a/net/netfilter/nft_compat.c +++ b/net/netfilter/nft_compat.c @@ -625,7 +625,7 @@ static int nfnl_compat_get_rcu(struct sk_buff *skb, const struct nfnl_info *info, const struct nlattr * const tb[]) { - struct nfgenmsg *nfmsg; + u8 family = info->nfmsg->nfgen_family; const char *name, *fmt; struct sk_buff *skb2; int ret = 0, target; @@ -640,9 +640,7 @@ static int nfnl_compat_get_rcu(struct sk_buff *skb, rev = ntohl(nla_get_be32(tb[NFTA_COMPAT_REV])); target = ntohl(nla_get_be32(tb[NFTA_COMPAT_TYPE])); - nfmsg = nlmsg_data(info->nlh); - - switch(nfmsg->nfgen_family) { + switch(family) { case AF_INET: fmt = "ipt_%s"; break; @@ -656,8 +654,7 @@ static int nfnl_compat_get_rcu(struct sk_buff *skb, fmt = "arpt_%s"; break; default: - pr_err("nft_compat: unsupported protocol %d\n", - nfmsg->nfgen_family); + pr_err("nft_compat: unsupported protocol %d\n", family); return -EINVAL; } @@ -665,9 +662,8 @@ static int nfnl_compat_get_rcu(struct sk_buff *skb, return -EINVAL; rcu_read_unlock(); - try_then_request_module(xt_find_revision(nfmsg->nfgen_family, name, - rev, target, &ret), - fmt, name); + try_then_request_module(xt_find_revision(family, name, rev, target, &ret), + fmt, name); if (ret < 0) goto out_put; @@ -682,8 +678,7 @@ static int nfnl_compat_get_rcu(struct sk_buff *skb, info->nlh->nlmsg_seq, NFNL_MSG_TYPE(info->nlh->nlmsg_type), NFNL_MSG_COMPAT_GET, - nfmsg->nfgen_family, - name, ret, target) <= 0) { + family, name, ret, target) <= 0) { kfree_skb(skb2); goto out_put; } |