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| author | Jamal Hadi Salim <hadi@cyberus.ca> | 2006-11-19 14:55:30 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-11-21 16:16:35 -0800 |
| commit | 785fd8b8a597519127c6d9e16e81f48af2ad391e (patch) | |
| tree | 39e6e66a8daabe1c3ce3f4c7d1d51ef6f72355fe /net | |
| parent | 334f3d45d3e0c925eb15003560cdd6f5383c88d0 (diff) | |
| download | linux-785fd8b8a597519127c6d9e16e81f48af2ad391e.tar.gz linux-785fd8b8a597519127c6d9e16e81f48af2ad391e.tar.bz2 linux-785fd8b8a597519127c6d9e16e81f48af2ad391e.zip | |
[XFRM]: nlmsg length not computed correctly in the presence of subpolicies
I actually dont have a test case for these; i just found them by
inspection. Refer to patch "[XFRM]: Sub-policies broke policy events"
for more info
Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Acked-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/xfrm/xfrm_user.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 2dae1c1ea362..c4cde57d9216 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -1927,6 +1927,9 @@ static int xfrm_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *xt, len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr); len += NLMSG_SPACE(sizeof(struct xfrm_user_acquire)); len += RTA_SPACE(xfrm_user_sec_ctx_size(xp)); +#ifdef CONFIG_XFRM_SUB_POLICY + len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type)); +#endif skb = alloc_skb(len, GFP_ATOMIC); if (skb == NULL) return -ENOMEM; @@ -2034,6 +2037,9 @@ static int xfrm_exp_policy_notify(struct xfrm_policy *xp, int dir, struct km_eve len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr); len += NLMSG_SPACE(sizeof(struct xfrm_user_polexpire)); len += RTA_SPACE(xfrm_user_sec_ctx_size(xp)); +#ifdef CONFIG_XFRM_SUB_POLICY + len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type)); +#endif skb = alloc_skb(len, GFP_ATOMIC); if (skb == NULL) return -ENOMEM; @@ -2109,10 +2115,12 @@ static int xfrm_notify_policy_flush(struct km_event *c) struct nlmsghdr *nlh; struct sk_buff *skb; unsigned char *b; + int len = 0; #ifdef CONFIG_XFRM_SUB_POLICY struct xfrm_userpolicy_type upt; + len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type)); #endif - int len = NLMSG_LENGTH(0); + len += NLMSG_LENGTH(0); skb = alloc_skb(len, GFP_ATOMIC); if (skb == NULL) |