#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/netfilter.h>
+#include <linux/slab.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_expect.h>
MODULE_DESCRIPTION("IRC (DCC) connection tracking helper");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ip_conntrack_irc");
+MODULE_ALIAS_NFCT_HELPER("irc");
module_param_array(ports, ushort, &ports_c, 0400);
MODULE_PARM_DESC(ports, "port numbers of IRC servers");
* ad_beg_p returns pointer to first byte of addr data
* ad_end_p returns pointer to last byte of addr data
*/
-static int parse_dcc(char *data, const char *data_end, u_int32_t *ip,
+static int parse_dcc(char *data, const char *data_end, __be32 *ip,
u_int16_t *port, char **ad_beg_p, char **ad_end_p)
{
char *tmp;
return -1;
*ad_beg_p = data;
- *ip = simple_strtoul(data, &data, 10);
+ *ip = cpu_to_be32(simple_strtoul(data, &data, 10));
/* skip blanks between ip and port */
while (*data == ' ') {
int dir = CTINFO2DIR(ctinfo);
struct nf_conntrack_expect *exp;
struct nf_conntrack_tuple *tuple;
- u_int32_t dcc_ip;
+ __be32 dcc_ip;
u_int16_t dcc_port;
__be16 port;
int i, ret = NF_ACCEPT;
/* we have at least (19+MINMATCHLEN)-5 bytes valid data left */
iph = ip_hdr(skb);
- pr_debug("DCC found in master %u.%u.%u.%u:%u %u.%u.%u.%u:%u\n",
- NIPQUAD(iph->saddr), ntohs(th->source),
- NIPQUAD(iph->daddr), ntohs(th->dest));
+ pr_debug("DCC found in master %pI4:%u %pI4:%u\n",
+ &iph->saddr, ntohs(th->source),
+ &iph->daddr, ntohs(th->dest));
for (i = 0; i < ARRAY_SIZE(dccprotos); i++) {
if (memcmp(data, dccprotos[i], strlen(dccprotos[i]))) {
pr_debug("unable to parse dcc command\n");
continue;
}
- pr_debug("DCC bound ip/port: %u.%u.%u.%u:%u\n",
- HIPQUAD(dcc_ip), dcc_port);
+
+ pr_debug("DCC bound ip/port: %pI4:%u\n",
+ &dcc_ip, dcc_port);
/* dcc_ip can be the internal OR external (NAT'ed) IP */
tuple = &ct->tuplehash[dir].tuple;
- if (tuple->src.u3.ip != htonl(dcc_ip) &&
- tuple->dst.u3.ip != htonl(dcc_ip)) {
+ if (tuple->src.u3.ip != dcc_ip &&
+ tuple->dst.u3.ip != dcc_ip) {
if (net_ratelimit())
printk(KERN_WARNING
- "Forged DCC command from "
- "%u.%u.%u.%u: %u.%u.%u.%u:%u\n",
- NIPQUAD(tuple->src.u3.ip),
- HIPQUAD(dcc_ip), dcc_port);
+ "Forged DCC command from %pI4: %pI4:%u\n",
+ &tuple->src.u3.ip,
+ &dcc_ip, dcc_port);
continue;
}