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Diffstat (limited to 'net/ipv4/tcp_diag.c')
-rw-r--r--net/ipv4/tcp_diag.c34
1 files changed, 9 insertions, 25 deletions
diff --git a/net/ipv4/tcp_diag.c b/net/ipv4/tcp_diag.c
index 634befc07921..f66945cb158f 100644
--- a/net/ipv4/tcp_diag.c
+++ b/net/ipv4/tcp_diag.c
@@ -42,15 +42,8 @@ struct tcpdiag_entry
static struct sock *tcpnl;
-
#define TCPDIAG_PUT(skb, attrtype, attrlen) \
-({ int rtalen = RTA_LENGTH(attrlen); \
- struct rtattr *rta; \
- if (skb_tailroom(skb) < RTA_ALIGN(rtalen)) goto nlmsg_failure; \
- rta = (void*)__skb_put(skb, RTA_ALIGN(rtalen)); \
- rta->rta_type = attrtype; \
- rta->rta_len = rtalen; \
- RTA_DATA(rta); })
+ RTA_DATA(__RTA_PUT(skb, attrtype, attrlen))
static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,
int ext, u32 pid, u32 seq, u16 nlmsg_flags)
@@ -61,7 +54,6 @@ static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,
struct nlmsghdr *nlh;
struct tcp_info *info = NULL;
struct tcpdiag_meminfo *minfo = NULL;
- struct tcpvegas_info *vinfo = NULL;
unsigned char *b = skb->tail;
nlh = NLMSG_PUT(skb, pid, seq, TCPDIAG_GETSOCK, sizeof(*r));
@@ -73,9 +65,11 @@ static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,
if (ext & (1<<(TCPDIAG_INFO-1)))
info = TCPDIAG_PUT(skb, TCPDIAG_INFO, sizeof(*info));
- if ((tcp_is_westwood(tp) || tcp_is_vegas(tp))
- && (ext & (1<<(TCPDIAG_VEGASINFO-1))))
- vinfo = TCPDIAG_PUT(skb, TCPDIAG_VEGASINFO, sizeof(*vinfo));
+ if (ext & (1<<(TCPDIAG_CONG-1))) {
+ size_t len = strlen(tp->ca_ops->name);
+ strcpy(TCPDIAG_PUT(skb, TCPDIAG_CONG, len+1),
+ tp->ca_ops->name);
+ }
}
r->tcpdiag_family = sk->sk_family;
r->tcpdiag_state = sk->sk_state;
@@ -166,23 +160,13 @@ static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,
if (info)
tcp_get_info(sk, info);
- if (vinfo) {
- if (tcp_is_vegas(tp)) {
- vinfo->tcpv_enabled = tp->vegas.doing_vegas_now;
- vinfo->tcpv_rttcnt = tp->vegas.cntRTT;
- vinfo->tcpv_rtt = jiffies_to_usecs(tp->vegas.baseRTT);
- vinfo->tcpv_minrtt = jiffies_to_usecs(tp->vegas.minRTT);
- } else {
- vinfo->tcpv_enabled = 0;
- vinfo->tcpv_rttcnt = 0;
- vinfo->tcpv_rtt = jiffies_to_usecs(tp->westwood.rtt);
- vinfo->tcpv_minrtt = jiffies_to_usecs(tp->westwood.rtt_min);
- }
- }
+ if (sk->sk_state < TCP_TIME_WAIT && tp->ca_ops->get_info)
+ tp->ca_ops->get_info(tp, ext, skb);
nlh->nlmsg_len = skb->tail - b;
return skb->len;
+rtattr_failure:
nlmsg_failure:
skb_trim(skb, b - skb->data);
return -1;