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pf: Fix vnet initialisation

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When running the vnet init code (pf_load_vnet()) we used to iterate over
all vnets, marking them as unhooked.
This is incorrect and leads to panics if pf is unloaded, as the unload
code does not unregister the pfil hooks (because the vnet is marked as
unhooked).

There's no need or reason to touch other vnets during initialisation.
Their pf_load_vnet() function will be triggered, which handles all
required initialisation.

Reviewed by:	zec, gnn
Differential Revision:	https://reviews.freebsd.org/D10592
This commit is contained in:
Kristof Provost 2017-05-07 14:33:58 +00:00
parent dfd174d6e0
commit 468cefa22e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=317907
1 changed files with 2 additions and 11 deletions
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13
sys/netpfil/pf/pf_ioctl.c
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@ -3712,17 +3712,8 @@ dehook_pf(void)
static void
pf_load_vnet(void)
{
VNET_ITERATOR_DECL(vnet_iter);
VNET_LIST_RLOCK();
VNET_FOREACH(vnet_iter) {
CURVNET_SET(vnet_iter);
V_pf_pfil_hooked = 0;
TAILQ_INIT(&V_pf_tags);
TAILQ_INIT(&V_pf_qids);
CURVNET_RESTORE();
}
VNET_LIST_RUNLOCK();
TAILQ_INIT(&V_pf_tags);
TAILQ_INIT(&V_pf_qids);
pfattach_vnet();
V_pf_vnet_active = 1;