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netfilter: conntrack: remove protocol name from l4proto struct

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no need to waste storage for something that is only needed
in one place and can be deduced from protocol number.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2017-08-12 00:57:04 +02:00 committed by Pablo Neira Ayuso
parent a3134d537f
commit 09ec82f5af
11 changed files with 20 additions and 22 deletions
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3
include/net/netfilter/nf_conntrack_l4proto.h
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@ -108,9 +108,6 @@ struct nf_conntrack_l4proto {
/* Return the per-net protocol part. */
struct nf_proto_net *(*get_net_proto)(struct net *net);
/* Protocol name */
const char *name;
/* Module (if any) which this is connected to. */
struct module *me;
};

1
net/ipv4/netfilter/nf_conntrack_proto_icmp.c
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@ -362,7 +362,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp __read_mostly =
{
.l3proto = PF_INET,
.l4proto = IPPROTO_ICMP,
.name = "icmp",
.pkt_to_tuple = icmp_pkt_to_tuple,
.invert_tuple = icmp_invert_tuple,
.print_tuple = icmp_print_tuple,

1
net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
View File

@ -367,7 +367,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly =
{
.l3proto = PF_INET6,
.l4proto = IPPROTO_ICMPV6,
.name = "icmpv6",
.pkt_to_tuple = icmpv6_pkt_to_tuple,
.invert_tuple = icmpv6_invert_tuple,
.print_tuple = icmpv6_print_tuple,

8
net/netfilter/nf_conntrack_proto.c
View File

@ -437,8 +437,8 @@ int nf_ct_l4proto_register(struct nf_conntrack_l4proto *l4proto[],
}
if (i != num_proto) {
ver = l4proto[i]->l3proto == PF_INET6 ? 6 : 4;
pr_err("nf_conntrack_ipv%d: can't register %s%d proto.\n",
ver, l4proto[i]->name, ver);
pr_err("nf_conntrack_ipv%d: can't register l4 %d proto.\n",
ver, l4proto[i]->l4proto);
nf_ct_l4proto_unregister(l4proto, i);
}
return ret;
@ -458,8 +458,8 @@ int nf_ct_l4proto_pernet_register(struct net *net,
break;
}
if (i != num_proto) {
pr_err("nf_conntrack_%s%d: pernet registration failed\n",
l4proto[i]->name,
pr_err("nf_conntrack_proto_%d %d: pernet registration failed\n",
l4proto[i]->l4proto,
l4proto[i]->l3proto == PF_INET6 ? 6 : 4);
nf_ct_l4proto_pernet_unregister(net, l4proto, i);
}

2
net/netfilter/nf_conntrack_proto_dccp.c
View File

@ -880,7 +880,6 @@ static struct nf_proto_net *dccp_get_net_proto(struct net *net)
struct nf_conntrack_l4proto nf_conntrack_l4proto_dccp4 __read_mostly = {
.l3proto = AF_INET,
.l4proto = IPPROTO_DCCP,
.name = "dccp",
.pkt_to_tuple = dccp_pkt_to_tuple,
.invert_tuple = dccp_invert_tuple,
.new = dccp_new,
@ -916,7 +915,6 @@ EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_dccp4);
struct nf_conntrack_l4proto nf_conntrack_l4proto_dccp6 __read_mostly = {
.l3proto = AF_INET6,
.l4proto = IPPROTO_DCCP,
.name = "dccp",
.pkt_to_tuple = dccp_pkt_to_tuple,
.invert_tuple = dccp_invert_tuple,
.new = dccp_new,

1
net/netfilter/nf_conntrack_proto_generic.c
View File

@ -187,7 +187,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly =
{
.l3proto = PF_UNSPEC,
.l4proto = 255,
.name = "unknown",
.pkt_to_tuple = generic_pkt_to_tuple,
.invert_tuple = generic_invert_tuple,
.print_tuple = generic_print_tuple,

1
net/netfilter/nf_conntrack_proto_gre.c
View File

@ -364,7 +364,6 @@ static int gre_init_net(struct net *net, u_int16_t proto)
static struct nf_conntrack_l4proto nf_conntrack_l4proto_gre4 __read_mostly = {
.l3proto = AF_INET,
.l4proto = IPPROTO_GRE,
.name = "gre",
.pkt_to_tuple = gre_pkt_to_tuple,
.invert_tuple = gre_invert_tuple,
.print_tuple = gre_print_tuple,

2
net/netfilter/nf_conntrack_proto_sctp.c
View File

@ -791,7 +791,6 @@ static struct nf_proto_net *sctp_get_net_proto(struct net *net)
struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = {
.l3proto = PF_INET,
.l4proto = IPPROTO_SCTP,
.name = "sctp",
.pkt_to_tuple = sctp_pkt_to_tuple,
.invert_tuple = sctp_invert_tuple,
.print_tuple = sctp_print_tuple,
@ -828,7 +827,6 @@ EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_sctp4);
struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = {
.l3proto = PF_INET6,
.l4proto = IPPROTO_SCTP,
.name = "sctp",
.pkt_to_tuple = sctp_pkt_to_tuple,
.invert_tuple = sctp_invert_tuple,
.print_tuple = sctp_print_tuple,

2
net/netfilter/nf_conntrack_proto_tcp.c
View File

@ -1556,7 +1556,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 __read_mostly =
{
.l3proto = PF_INET,
.l4proto = IPPROTO_TCP,
.name = "tcp",
.pkt_to_tuple = tcp_pkt_to_tuple,
.invert_tuple = tcp_invert_tuple,
.print_tuple = tcp_print_tuple,
@ -1594,7 +1593,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6 __read_mostly =
{
.l3proto = PF_INET6,
.l4proto = IPPROTO_TCP,
.name = "tcp",
.pkt_to_tuple = tcp_pkt_to_tuple,
.invert_tuple = tcp_invert_tuple,
.print_tuple = tcp_print_tuple,

4
net/netfilter/nf_conntrack_proto_udp.c
View File

@ -313,7 +313,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 __read_mostly =
{
.l3proto = PF_INET,
.l4proto = IPPROTO_UDP,
.name = "udp",
.allow_clash = true,
.pkt_to_tuple = udp_pkt_to_tuple,
.invert_tuple = udp_invert_tuple,
@ -347,7 +346,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite4 __read_mostly =
{
.l3proto = PF_INET,
.l4proto = IPPROTO_UDPLITE,
.name = "udplite",
.allow_clash = true,
.pkt_to_tuple = udp_pkt_to_tuple,
.invert_tuple = udp_invert_tuple,
@ -381,7 +379,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6 __read_mostly =
{
.l3proto = PF_INET6,
.l4proto = IPPROTO_UDP,
.name = "udp",
.allow_clash = true,
.pkt_to_tuple = udp_pkt_to_tuple,
.invert_tuple = udp_invert_tuple,
@ -415,7 +412,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite6 __read_mostly =
{
.l3proto = PF_INET6,
.l4proto = IPPROTO_UDPLITE,
.name = "udplite",
.allow_clash = true,
.pkt_to_tuple = udp_pkt_to_tuple,
.invert_tuple = udp_invert_tuple,

17
net/netfilter/nf_conntrack_standalone.c
View File

@ -208,6 +208,21 @@ static const char* l3proto_name(u16 proto)
return "unknown";
}
static const char* l4proto_name(u16 proto)
{
switch (proto) {
case IPPROTO_ICMP: return "icmp";
case IPPROTO_TCP: return "tcp";
case IPPROTO_UDP: return "udp";
case IPPROTO_DCCP: return "dccp";
case IPPROTO_GRE: return "gre";
case IPPROTO_SCTP: return "sctp";
case IPPROTO_UDPLITE: return "udplite";
}
return "unknown";
}
/* return 0 on success, 1 in case of error */
static int ct_seq_show(struct seq_file *s, void *v)
{
@ -242,7 +257,7 @@ static int ct_seq_show(struct seq_file *s, void *v)
ret = -ENOSPC;
seq_printf(s, "%-8s %u %-8s %u %ld ",
l3proto_name(l3proto->l3proto), nf_ct_l3num(ct),
l4proto->name, nf_ct_protonum(ct),
l4proto_name(l4proto->l4proto), nf_ct_protonum(ct),
nf_ct_expires(ct) / HZ);
if (l4proto->print_conntrack)