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| author |   Eric W. Biederman <ebiederm@xmission.com> | 2012-11-16 03:02:58 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2012-11-18 20:30:55 -0500 |
| commit | 73f7ef435934e952c1d70d83d69921ea5d1f6bd4 (patch) | |
| tree | a5d0bbe5e1154eaec96f859507e90bae4b34d0b9 /include | |
| parent | userns: make each net (net_ns) belong to a user_ns (diff) | |
| download | linux-dev-73f7ef435934e952c1d70d83d69921ea5d1f6bd4.tar.xz linux-dev-73f7ef435934e952c1d70d83d69921ea5d1f6bd4.zip | |
sysctl: Pass useful parameters to sysctl permissions
- Current is implicitly avaiable so passing current->nsproxy isn't useful.
- The ctl_table_header is needed to find how the sysctl table is connected
to the rest of sysctl.
- ctl_table_root is avaiable in the ctl_table_header so no need to it.
With these changes it becomes possible to write a version of
net_sysctl_permission that takes into account the network namespace of
the sysctl table, an important feature in extending the user namespace.
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/sysctl.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index cd844a6a8d5f..14a8ff2de11e 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -158,8 +158,7 @@ struct ctl_table_root { struct ctl_table_set default_set; struct ctl_table_set *(*lookup)(struct ctl_table_root *root, struct nsproxy *namespaces); - int (*permissions)(struct ctl_table_root *root, - struct nsproxy *namespaces, struct ctl_table *table); + int (*permissions)(struct ctl_table_header *head, struct ctl_table *table); }; /* struct ctl_path describes where in the hierarchy a table is added */ |