diff options
| author | jamal <hadi@cyberus.ca> | 2010-02-11 00:53:13 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-15 21:49:50 -0800 |
| commit | 0dca3a843632c2fbb6e358734fb08fc23e800f50 (patch) | |
| tree | fe86830e9582b534c0481c2ac2f58e63a684906b | |
| parent | 19f4c7133fc1b94001b997c4843d0a9192ee63e5 (diff) | |
xfrm: Flushing empty SPD generates false events
Observed similar behavior on SPD as previouly seen on SAD flushing..
This fixes it.
cheers,
jamal
commit 428b20432dc31bc2e01a94cd451cf5a2c00d2bf4
Author: Jamal Hadi Salim <hadi@cyberus.ca>
Date: Thu Feb 11 05:49:38 2010 -0500
xfrm: Flushing empty SPD generates false events
To see the effect make sure you have an empty SPD.
On window1 "ip xfrm mon" and on window2 issue "ip xfrm policy flush"
You get prompt back in window1 and you see the flush event on window2.
With this fix, you still get prompt on window1 but no event on window2.
Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/key/af_key.c | 2 | ||||
| -rw-r--r-- | net/xfrm/xfrm_policy.c | 13 | ||||
| -rw-r--r-- | net/xfrm/xfrm_user.c | 2 |
3 files changed, 12 insertions, 5 deletions
diff --git a/net/key/af_key.c b/net/key/af_key.c index 9d47a6aa53d..8b8e26a9e40 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -2713,7 +2713,7 @@ static int pfkey_spdflush(struct sock *sk, struct sk_buff *skb, struct sadb_msg audit_info.secid = 0; err = xfrm_policy_flush(net, XFRM_POLICY_TYPE_MAIN, &audit_info); if (err) - return err; + return 0; c.data.type = XFRM_POLICY_TYPE_MAIN; c.event = XFRM_MSG_FLUSHPOLICY; c.pid = hdr->sadb_msg_pid; diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 0ecb16a9a88..eb870fcc29c 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -771,7 +771,8 @@ xfrm_policy_flush_secctx_check(struct net *net, u8 type, struct xfrm_audit *audi int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info) { - int dir, err = 0; + int dir, err = 0, cnt = 0; + struct xfrm_policy *dp; write_lock_bh(&xfrm_policy_lock); @@ -789,8 +790,10 @@ int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info) &net->xfrm.policy_inexact[dir], bydst) { if (pol->type != type) continue; - __xfrm_policy_unlink(pol, dir); + dp = __xfrm_policy_unlink(pol, dir); write_unlock_bh(&xfrm_policy_lock); + if (dp) + cnt++; xfrm_audit_policy_delete(pol, 1, audit_info->loginuid, audit_info->sessionid, @@ -809,8 +812,10 @@ int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info) bydst) { if (pol->type != type) continue; - __xfrm_policy_unlink(pol, dir); + dp = __xfrm_policy_unlink(pol, dir); write_unlock_bh(&xfrm_policy_lock); + if (dp) + cnt++; xfrm_audit_policy_delete(pol, 1, audit_info->loginuid, @@ -824,6 +829,8 @@ int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info) } } + if (!cnt) + err = -ESRCH; atomic_inc(&flow_cache_genid); out: write_unlock_bh(&xfrm_policy_lock); diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 7c870044704..b0fb7d3bc15 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -1677,7 +1677,7 @@ static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh, audit_info.secid = NETLINK_CB(skb).sid; err = xfrm_policy_flush(net, type, &audit_info); if (err) - return err; + return 0; c.data.type = type; c.event = nlh->nlmsg_type; c.seq = nlh->nlmsg_seq; |