diff options
| author | Martin KaFai Lau <kafai@fb.com> | 2020-02-26 02:04:15 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-02-28 05:50:19 +0300 |
| commit | 0df6d32842b9a5f97a29ea90c8adc5cfac38341d (patch) | |
| tree | d9b50a11f25fb4c0f30505eed7cffae73879862b /net/ipv4/raw_diag.c | |
| parent | 5682d393b40e1fe7426a7b8c3471f05262f42010 (diff) | |
| download | linux-0df6d32842b9a5f97a29ea90c8adc5cfac38341d.tar.xz | |
inet_diag: Move the INET_DIAG_REQ_BYTECODE nlattr to cb->data
The INET_DIAG_REQ_BYTECODE nlattr is currently re-found every time when
the "dump()" is re-started.
In a latter patch, it will also need to parse the new
INET_DIAG_REQ_SK_BPF_STORAGES nlattr to learn the map_fds. Thus, this
patch takes this chance to store the parsed nlattr in cb->data
during the "start" time of a dump.
By doing this, the "bc" argument also becomes unnecessary
and is removed. Also, the two copies of the INET_DIAG_REQ_BYTECODE
parsing-audit logic between compat/current version can be
consolidated to one.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20200225230415.1975555-1-kafai@fb.com
Diffstat (limited to 'net/ipv4/raw_diag.c')
| -rw-r--r-- | net/ipv4/raw_diag.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv4/raw_diag.c b/net/ipv4/raw_diag.c index a2933eeabd91..d19cce39be1b 100644 --- a/net/ipv4/raw_diag.c +++ b/net/ipv4/raw_diag.c @@ -138,17 +138,21 @@ static int sk_diag_dump(struct sock *sk, struct sk_buff *skb, } static void raw_diag_dump(struct sk_buff *skb, struct netlink_callback *cb, - const struct inet_diag_req_v2 *r, struct nlattr *bc) + const struct inet_diag_req_v2 *r) { bool net_admin = netlink_net_capable(cb->skb, CAP_NET_ADMIN); struct raw_hashinfo *hashinfo = raw_get_hashinfo(r); struct net *net = sock_net(skb->sk); + struct inet_diag_dump_data *cb_data; int num, s_num, slot, s_slot; struct sock *sk = NULL; + struct nlattr *bc; if (IS_ERR(hashinfo)) return; + cb_data = cb->data; + bc = cb_data->inet_diag_nla_bc; s_slot = cb->args[0]; num = s_num = cb->args[1]; |