[NETFILTER]: nfnetlink_log: remove useless prefix length limitation
There is no reason for limiting netlink attributes in size.
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index bd3ffa6..d1505dd 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -408,7 +408,7 @@
const struct net_device *indev,
const struct net_device *outdev,
const struct nf_loginfo *li,
- const char *prefix)
+ const char *prefix, unsigned int plen)
{
unsigned char *old_tail;
struct nfulnl_msg_packet_hdr pmsg;
@@ -432,12 +432,8 @@
NFA_PUT(inst->skb, NFULA_PACKET_HDR, sizeof(pmsg), &pmsg);
- if (prefix) {
- int slen = strlen(prefix);
- if (slen > NFULNL_PREFIXLEN)
- slen = NFULNL_PREFIXLEN;
- NFA_PUT(inst->skb, NFULA_PREFIX, slen, prefix);
- }
+ if (prefix)
+ NFA_PUT(inst->skb, NFULA_PREFIX, plen, prefix);
if (indev) {
tmp_uint = htonl(indev->ifindex);
@@ -601,6 +597,7 @@
const struct nf_loginfo *li;
unsigned int qthreshold;
unsigned int nlbufsiz;
+ unsigned int plen;
if (li_user && li_user->type == NF_LOG_TYPE_ULOG)
li = li_user;
@@ -616,6 +613,10 @@
return;
}
+ plen = 0;
+ if (prefix)
+ plen = strlen(prefix);
+
/* all macros expand to constant values at compile time */
/* FIXME: do we want to make the size calculation conditional based on
* what is actually present? way more branches and checks, but more
@@ -630,7 +631,7 @@
#endif
+ NFA_SPACE(sizeof(u_int32_t)) /* mark */
+ NFA_SPACE(sizeof(u_int32_t)) /* uid */
- + NFA_SPACE(NFULNL_PREFIXLEN) /* prefix */
+ + NFA_SPACE(plen) /* prefix */
+ NFA_SPACE(sizeof(struct nfulnl_msg_packet_hw))
+ NFA_SPACE(sizeof(struct nfulnl_msg_packet_timestamp));
@@ -701,7 +702,7 @@
inst->qlen++;
__build_packet_message(inst, skb, data_len, pf,
- hooknum, in, out, li, prefix);
+ hooknum, in, out, li, prefix, plen);
/* timer_pending always called within inst->lock, so there
* is no chance of a race here */